EP0474708B1 - Shoe with a closure device and with an upper made of flexible material - Google Patents

Shoe with a closure device and with an upper made of flexible material Download PDF

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Publication number
EP0474708B1
EP0474708B1 EP90908458A EP90908458A EP0474708B1 EP 0474708 B1 EP0474708 B1 EP 0474708B1 EP 90908458 A EP90908458 A EP 90908458A EP 90908458 A EP90908458 A EP 90908458A EP 0474708 B1 EP0474708 B1 EP 0474708B1
Authority
EP
European Patent Office
Prior art keywords
footwear
instep shield
instep
elements
closure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90908458A
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German (de)
French (fr)
Other versions
EP0474708A1 (en
Inventor
Christoph Berger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Puma SE
Original Assignee
Puma AG Rudolf Dassler Sport
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27436371&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0474708(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE8912788U external-priority patent/DE8912788U1/de
Priority claimed from DE9001645U external-priority patent/DE9001645U1/de
Priority claimed from DE9005496U external-priority patent/DE9005496U1/de
Application filed by Puma AG Rudolf Dassler Sport filed Critical Puma AG Rudolf Dassler Sport
Priority to AT90908458T priority Critical patent/ATE93693T1/en
Publication of EP0474708A1 publication Critical patent/EP0474708A1/en
Application granted granted Critical
Publication of EP0474708B1 publication Critical patent/EP0474708B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D999/00Subject matter not provided for in other groups of this subclass
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00Footwear characterised by the material
    • A43B1/0072Footwear characterised by the material made at least partially of transparent or translucent materials
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43CFASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00Other fastenings specially adapted for shoes
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43CFASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00Other fastenings specially adapted for shoes
    • A43C11/16Fastenings secured by wire, bolts, or the like
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43CFASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00Other fastenings specially adapted for shoes
    • A43C11/16Fastenings secured by wire, bolts, or the like
    • A43C11/165Fastenings secured by wire, bolts, or the like characterised by a spool, reel or pulley for winding up cables, laces or straps by rotation
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43CFASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C11/00Other fastenings specially adapted for shoes
    • A43C11/20Fastenings with tightening devices mounted on the tongue
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/37Drawstring, laced-fastener, or separate essential cooperating device therefor
    • Y10T24/3703Includes separate device for holding drawn portion of lacing

Definitions

  • the present invention relates to a shoe provided with a locking device, in particular sports, leisure or rehabilitation shoe, with a shaft material which is flexible with respect to tensile stresses in the closing area or with a plurality of flexible shaft materials according to the preamble of claim 1.
  • a sports shoe, namely football boots, with a locking device of this type is known from DD-PS 89 796.
  • each side of the instep shield can be tied in the instep area with a tab provided on the side parts of the shoe upper by a lacing by threading a shoelace through tying holes in the instep plate and in the side flaps and tying behind the heel part of the football boot.
  • a lacing arrangement punctual pressures when tightening a lacing that usually runs over the instep are reduced and thus the blood circulation in the instep area is no longer impaired as much.
  • the closing flaps are also attached directly to the sole, namely between the sole and the upper. This prevents tension between the riser plate and the upper material.
  • the riser plate should only be able to be pulled down and back towards the instep of the wearer.
  • the present invention is intended to achieve the object of improving the previously known double lacing with an instep plate in the instep area in such a way that it is possible to simply insert the instep plate and the side parts of the shoe shaft over the entire closing area and with closing or Tension the clamping force against each other in order to ensure the most uniform possible pressure distribution along the entire closing area, if possible also over the area of the arch of the instep of the foot, that is to say transversely to the longitudinal direction of the shoe.
  • the present invention ensures that the mutual position of the tensioning element guides in the riser plate or is precisely defined and optimized with respect to one another in the locking tabs and that the clamping element (s) is not or will not be pinched by the closing pressure of the riser plate and the locking tabs, and also not selectively and / or in partial areas of the closing area.
  • a largely continuous adjustment of the bracing is possible in a simple manner by means of the central turnbuckle.
  • the locking device designed according to the invention can be prefabricated as a unit when using an assembled arrangement of instep shield and locking tab, pre-tested and attached to the corresponding shoes, in particular sports, leisure or rehabilitation shoes, as a securely functioning clamping unit.
  • the arrangement of the clamping element (s) can in principle be carried out without crossing.
  • one or more crossings of the tensioning element (s) can also be present, depending on the shaft height of the shoe.
  • a special configuration of the intersecting grooves ensures that the clamping element (s) crosses with little or no friction in these embodiments of the present invention, since these can be designed such that they do not lie on one another at any point.
  • the locking device can be easily tensioned and relaxed and, in addition, wear is avoided completely by avoiding high pressure at the point of intersection of the clamping element (s).
  • the use of elastic or resilient material for the closing device creates a relatively stable end edge at the shoe opening at the end of the closing area.
  • this can be used by a special configuration of the tongue end part to stabilize or fix the position of the tongue with respect to the closing device and also to enable targeted guidance of the opening or closing upper end parts of the shoe upper.
  • central turnbuckles as a locking device for ski boots with shell-shaped plastic closing flaps in the closing area, which are practically non-compliant with regard to tensile stresses, is known from DE-AS 20 46 890.
  • this type of closing device is not applicable to shoes with shaft materials that are flexible with respect to tensile stresses in the closing area, since the closing area of the previously known closing devices extends to only a short section of the locking tabs of these rigid ski boots for alpine skiing.
  • a section of a sports shoe namely its instep area, is designated in the middle.
  • a riser plate 2 which, with two side closing flaps 3, 4, forms a structural unit in that the latter are formed on the end 5 of the instep plate 2 facing the toe and from there essentially parallel or at a small acute angle ⁇ slope from about 5 ° to 15 ° to the riser plate 2.
  • the closing flaps 3, 4 can also be articulated at the end 5 on the riser plate 2, for example via a hinge or preferably via a spring joint.
  • the closing flap 3 is firmly connected to one side 6 and the closing flap 4 is firmly connected to the other side 7 of the upper material or the shoe upper 8 of this sports shoe, for example sewn and / or glued.
  • the riser plate 2 and the closing flaps 3, 4 consist of elastic, spring-elastic or hard-elastic material. In the relieved state, these parts of the locking device remain in the open state, which is shown in FIG. 1.
  • Thermoplastics or thermosets for example polyamide, polyimide, polyurethane or the like, are used in particular as materials for the riser plate 2 and the closing flaps 3, 4.
  • the upper material of the upper 8 consists of leather or synthetic leather or of a fiber fabric and it can also be provided with trimmings, for example made of leather or synthetic leather or other materials.
  • a fiber fabric part 8a reducing the weight of the sports shoe is shown below the instep plate 2.
  • the adjoining parts 6, 7 of the shoe upper 8 consist, as usual, of leather, preferably suede.
  • the upper material of the shoe upper 8 can have a lining on the inside and it can also be provided with an inner cushion layer.
  • a tongue 10 which completely covers the closing area and which can also be padded.
  • a thermoplastic, pressure-transmitting cushioning material in the form of foamed polyethylene, polyurethane or ethylene-vinyl acetate is preferably used as the cushioning.
  • the locking tabs 3, 4 can be pulled against the riser plate 2 by a tensioning element 11 designed as a rope or band, for example as a steel wire, wire or plastic rope.
  • the tensioning element 11 starting from a central turnbuckle 12 provided on the riser plate 2, alternates from the riser plate 2 to the locking tab 3 or 4 and led back again and runs in the guides attached there in the form of circular-arc-shaped guide channels 13.
  • the guide channels 13 run in the plane of the riser plate 2 or the locking tabs 3, 4 and are offset from one another in such a way that the clamping element 11 is at least approximately S-shaped or in a serpentine shape.
  • the arrangement of the guide channels 13 is selected such that in the case of closing flaps 3, 4 used on the riser plate 2, an opening 14 of a guide channel 13 is congruent with the opening 14 of the opposite guide channel 13.
  • each locking flap 3, 4 has two guide channels 13 and the riser plate 2 has a guide channel 13 on each side.
  • more guide channels 13 can also be provided both in the closing flaps 3, 4 and in the riser plate 2 be arranged.
  • the radius R of the guide channels 13 is chosen to be as large as possible and is at least about 7 mm up to about 15 mm depending on the shoe size.
  • the circular arc of a guide channel 13 extends over an opening angle ⁇ of approximately 100 ° to 180 °.
  • the riser plate 2 and the closing flaps 3, 4 are made of abrasion-resistant material with a low coefficient of friction or the guide channels 13 are lined with such a material.
  • the guide channels 13 can also consist of a curved sleeve made of a material with a low coefficient of friction. Suitable materials for this are, for example, polyamide. Polyimide, polyester, polyurethane or even metals with good sliding properties, such as those used in plain bearings.
  • the curved sleeves can be made of stainless steel, titanium or bronze.
  • the central turnbuckle 12 is preferably designed so that the tensioning element 11 can be tightened and loosened from both sides in fine steps, approximately continuously or even continuously.
  • the central turnbuckle 12 is advantageously designed as a rotary lock and rotatably mounted in the riser plate 2.
  • Each locking tab 3, 4 has at least two guide channels 13, which are arranged at a distance from the two openings 14 of the guide channel 13 mounted opposite on the riser plate 2, so that the guide channel 13 of the riser plate 2 is set to a gap.
  • a single clamping element 11 is provided, which is pulled back from the central clamping lock 12 via the closing flap 3 through the end 5 of the riser plate 2 to the other locking flap 4 to the central clamping lock 12.
  • two central turnbuckles each of which is used to operate a tensioning element between the locking tab 3 and the riser plate 2 on the one hand and the locking tab 4 and the riser plate 2 on the other.
  • the riser plate 2 is preferably made of resilient or hard-elastic plastic material in order to be able to perform its function well as a large-area pressure distribution plate, it is advantageous to increase the flexibility of the riser plate 2 at least in the lower region by transverse material thinning points, such as grooves 15, as shown in FIG 1 and 4 is shown.
  • transverse material thinning points such as grooves 15, as shown in FIG 1 and 4 is shown.
  • a corrugated profile or a meandering profile can also be provided, whereby in addition to the necessary flexibility, sufficient expansion reserves are also created.
  • slide films 17 covering the opening gap 16 are provided, for example in the form of plastic sheets with a thickness of approximately 0.2 mm to 0.5 mm.
  • These sliding foils 17 are formed on one side either on the riser plate 2 or in each case on the closing flap 3 or 4 or fastened, preferably glued on.
  • the sliding foils 17 enable the closing flaps 3, 4 to be pulled up easily, with little friction, against the riser plate 2, and the same kind of low-friction suspension in the relieved state.
  • the sliding films 17 thus support the parallel or wedge-shaped closing movements of the locking tabs 3, 4 towards the riser plate 2 or away from it.
  • round or rounded recesses 18 are provided at the connection points in the lower region of the riser plate 2, that is to say at the beginning of the opening gap 16, in order to reduce the notch effect at these connection points.
  • a steel wire or a wire rope can be used as the tensioning element or tensioning elements 11, which can possibly also be surrounded by a plastic sleeve with good sliding properties.
  • the clamping element 11 can also consist of a Bowden cable 19, as shown in Fig. 4.
  • the casing 20 of the Bowden cable 19 has compressible areas 22 between the fixed articulation points 21a, 21b on the riser plate 2 and on the locking tabs 3, 4.
  • These compressible regions 22 of the casing 20 are preferably designed as an expandable or compressible bellows.
  • the exemplary embodiment according to FIG. 4 corresponds to that of FIGS. 1 to 3 with regard to the remaining parts of the locking device.
  • the sub-device 2, 3, 4 of the locking device either consists of a single, homogeneous component or the riser plate 2 and the locking tabs 3, 4 each consist of a single component Component.
  • a two-part design of the riser plate 2 can also be provided, as will be described below with reference to FIGS. 5 and 6.
  • guides in the form of upwardly diverting deflection elements or blocks 23 are provided on the locking tabs 3, 4.
  • These deflection elements or blocks 23 each have a protruding upper edge 24 (FIG. 5A), at least in the region of the guide of the tensioning element (s) 11, so that a guide groove 25 is formed. in which the clamping element (s) 11 can slide and can be secured against unintentional lifting off the deflection element or block 23.
  • the deflection elements or blocks 23 are provided or attached to the closing flaps 3, 4 at mutually opposite locations and the riser plate 2 has no guide channels 13 and / or deflection elements or blocks 23 here.
  • the tensioning element 11 is thus alternating in the center area MB looped from one to the other locking tab 3 or 4 around the corresponding deflection elements or blocks 23 and can be tensioned and relaxed from the central lock 12. This results in a crossing point 26 of the clamping element 11 in the central area MB of the locking device, whereas in the upper part 27 and in the lower part 28 of the locking area SB the locking tabs 3, 4 are connected to one another without crossing.
  • the tensioning element 11 is guided in grooves 29 to 33 over the riser plate 2. This ensures good guidance of the tensioning element or the tensioning elements 11 in these areas and also the pressure of the tensioned tensioning element 11 on the riser plate 2 is reduced and thus the friction is reduced.
  • the grooves 31 and 32 intersect at the intersection 26.
  • the one groove, here the groove 31, is advantageously formed deeper 5.
  • the deeper groove 31 preferably runs deeper than the other groove 32 by at least approximately the thickness of the tensioning element 11, so that the frictional pressure of the intersecting parts of the tensioning element 11 is negligibly small or is completely eliminated.
  • a riser cover 34 can be applied to the latter so that the grooves 29 to 33 are formed or maintained as channels for low-friction sliding of the clamping element (s) 11.
  • a riser cover 34 is shown in Fig. 6 It is provided with a recess 35 for the passage of the central turnbuckle 12. It can be glued and / or sewn onto the riser plate 2 and / or can be latched to the riser plate 2 by means of latching elements known per se, for example latching hooks, latching noses or the like provided on the riser plate cover 34 and / or on the riser plate 2.
  • a flap cover 36 or 37 can be provided on the locking tabs 3, 4 in order to cover the, for example, curved guides for the tensioning element 11 or the guide grooves 25 shown in FIG. 5A.
  • the flap covers 36, 37 have openings 38 in corresponding locations, into which the deflection elements or blocks 23 engage or, for example, snap in with the projecting upper edge 24.
  • a sliding film 17 can be provided between the riser plate cover 34 and the adjacent tab covers 36, 37, as was described with reference to FIGS. 1 and 2.
  • the instep shield cover 34 and the flap covers 36, 37 consist of a single component, for example a stamped, injection-molded or cast part.
  • a membrane 39 connected to the adjacent components can also be provided, in particular molded on, for example splashed. This membrane 39 is preferably collapsible or collapsible, primarily in the form of a bellows (FIG. 6 A).
  • At least one tensioning strap 41 or 42 can be attached to each closing flap 3, 4 in the region 40 of the midfoot (FIGS. 8 and 9), which straps laterally around the foot into the sole region 43 (FIG. 10) of the shoe and is preferably or exclusively firmly connected to the sole material of the shoe, for example glued, sewn or riveted.
  • tensioning straps 41, 42 are indicated by dashed lines in FIG. 5, it being possible for one tensioning strap 41 to be present on one, preferably on the inner locking tab, and two tensioning straps 42 on the outer locking tab.
  • two tensioning straps 41 and 42 are provided on the two locking tabs 3, 4, each of which runs parallel or approximately parallel to one another.
  • the tensioning straps 41, 42 can advantageously be connected to one another by a bracket 44 which extends through the entire sole 45 (FIGS. 7 and 10).
  • the riser plate 2, the locking tabs 3, 4 and the tensioning straps 41, 42 including the bracket 44 advantageously consist of a uniform injection, casting or molded part.
  • the straps 41, 42 can, for example, on the inside 46 of the shaft material 47, or within the same between the outer material and the lining of the shaft, or on the outside of the shaft (Fig. 10). In the arrangement on the outside of the shaft material, these tensioning straps 41, 42 can also be arranged under or over trimmings of the shaft material.
  • the tensioning straps 41, 42 advantageously end below the insole 48 or the bracket 44 runs below this shoe part.
  • the central lock 12 thus fulfills a multiple function in these embodiments of the present invention. It not only serves to produce a uniformly adjustable closing pressure which is evenly distributed via the riser plate 2, but at the same time it requires increased stability of the entire shoe in the sense that the risk of overexpansion of the sensitive joints and tendons, preferably in the outer area of the shoe, is largely reduced becomes.
  • the tongue 10 is held in the correct position relative to the closing area and especially prevented from slipping into the shoe.
  • This advantage is particularly given if the stop wall 54 of the thickened tongue part 53 forms at least approximately a right angle with the non-thickened part of the tongue 10.
  • the protruding tongue part 53 tapers towards its upper free end and ends there with a rounding 55, as can be seen from FIG.
  • the lateral edge regions 56, 57 of the tongue 10 taper - as is known - towards the tongue edges, as shown in FIG. 13.
  • the shoes designed according to the invention with the described central locking device are suitable not only for normal street shoes, sports and leisure shoes, but also for rehabilitation shoes, i.e. for shoes in which the described advantages in operation and in the strength of the central locking system are particularly important.
  • connection of the locking tabs 3, 4 to the end 5 of the riser plate 2 is designed to be as easily movable as possible. This can be done, for example, by the hinges or joints mentioned above, in particular spring joints.
  • connection of these parts of the central locking device in the connection area 58 takes place via corrugated or folded membranes 39.1, each of which is also the continuation of one provided between the riser plate 2 and the locking tabs 3, 4 in FIG. 14 can be membrane 39.2 shown in the left part of the closing device and extend up to or almost up to the end edge 5.1 of the end of the riser plate 2.
  • corrugated or folded membranes 39.11 of this type can also be provided in the front connection area 58.1 of the instep shield cover 34 and the flap covers 36, 37 if such an instep shield cover 34 is provided.
  • a connection of the locking tabs 3, 4 to the riser plate 2 may be omitted entirely.
  • the folded membrane 39.1 or 39.11 preferably runs in the direction of a real or imaginary connection point 59 between the riser plate 2 and the locking tabs 3, 4, as shown in FIG. 14, or from the connection point 59.1 between the riser plate cover 34 and the tab covers 36, 37 - corresponding to the representation according to FIG. 15 - from to the end edge 5.1 of the end 5 of the instep shield 2 according to FIG. 14 or to the end edge 5.11 of the end 34.1 of the instep shield cover 34 according to FIG. 15.
  • connection areas 58 and 58.1 of the riser plate 2 and, if necessary, the riser plate cover 34 their ends 5.1 and 34.1 are preferably provided by suitable measures, for example by means of low material thicknesses and / or by additional transverse grooves or transverse shafts 15.1 (see FIGS. 14 and 15), in particular in the form of a corrugated or folded membrane, highly resilient.
  • transverse grooves 15.1 can overlap the folds of the membranes 39.1 and 39.11.
  • openings 38 are provided in the tab covers 36, 37 at corresponding points, into which the deflection elements or blocks 23 engage or, for example, snap in with a projecting upper edge.
  • Reference numbers 39 preferably denote collapsible or collapsible membranes.
  • tensioning straps 41, 42 When tensioning straps 41, 42 are used, they can, as shown in FIG. 7, be molded directly onto the locking tabs 3, 4 during their manufacture. But they can also be attached to them in an otherwise suitable manner, for example by sewing, riveting, gluing or the like.
  • the deflection elements or blocks 23 are expediently arranged on the locking tabs 3, 4 in such a way that they are aligned with the tensioning straps 41, 42, as shown in FIG. 16. As a result, the tension of the tensioning element 11 is transmitted directly to the tensioning straps 41, 42.
  • the tensioning straps 41, 42 can be separated from the locking tabs 3, 4, as shown in FIG. 17, the deflection elements or blocks 23 then being provided at the ends 41.1 and 42.1 of a tensioning strap 41, 42 each.
  • deflection elements or blocks 23 deflection elements or blocks of a suitable other shape and construction, in particular in the form of loops, holes, eyelets, ghilly eyelets or the like, can also be provided.
  • the deflection elements or blocks 23 can be formed on the tensioning straps 41, 42, clipped on, glued, riveted or fastened in some other way.
  • the tensioning straps 41, 42 can be inserted into slots 60 of the locking flaps 3, 4, where they can be arranged there firmly, but preferably displaceably, as in FIGS. 18 and 19 is shown.
  • the ends 41.1 and 42.1 of the tensioning straps 41, 42 are inserted through slots 60 from below, overlapping the locking tabs 3, 4.
  • Each deflecting element 23 or each deflecting block advantageously has a stop edge 61 at the upper end.
  • This stop edge 61 is expediently first removed from the upper slot edge 62 by a certain amount, for example 5 mm to 20 mm, when the closing device is open.
  • a certain amount for example 5 mm to 20 mm
  • the tensioning straps 41, 42 first occur during the closing operation through the tensioning element 11, as a result of which the foot is held in the shoe. Only when the tensioning element 11 is tightened further does the abutment edge 61 abut the upper slot edge 62 and thereby bring the locking tabs 3, 4 into the closed position. This ensures a good fit of the foot in the shoe. Accordingly, when the central turnbuckle 12 is unlocked, the locking device first opens, and then the foot is loosened in the shoe by further relaxation of the tensioning straps 41, 42.
  • the deflection elements or blocks 23 on the tensioning straps 41, 42 can be connected to one another by a web 23a, as is shown schematically in dashed lines in FIG. 20.
  • the common stop edge 61 thus abuts the respective locking tabs 3 and 4 over a wide area.
  • the area of the width adjustment is to be as uniform as possible with straps 41, 42
  • the tensioning straps 41, 42 can be provided at their end regions adjacent to the locking tabs 3, 4 with latching elements 41.2 or 42.2 of a known type, such as pin-hole connections, screw connections or the like, which fasten the deflection elements or allow blocks 23 or the differently configured deflection elements at different locations on the end regions of the tensioning straps 41, 42.
  • latching elements 41.2 and 42.2 are shown schematically in FIG. 19.
  • one or more lateral connecting webs 63 are advantageously provided between the adjacent tensioning straps 41, 42.
  • the tensioning straps 41, 42 can also be connected to each other on one or on each side of the locking device with a bracket 44 and adjacent brackets 44 can also be connected to one another by a further fastening web 64, as can also be seen in FIG. 20. This ensures easy installation of the complete cage consisting of the tensioning straps 41, 42, the connecting webs 63, 64, the brackets 44 and the riser plate 2 or - in the case of a separate riser plate 2 - the partial cage then present.
  • the connecting webs 63 and the further webs 44 and 64 ensure easy positioning of the tensioning straps 41, 42 on the finished shoe upper, because the aforementioned complete cage or partial cage is easily pushed onto the shoe upper and very much there due to the material elasticity can be easily fixed
  • a further advantageous embodiment of the invention consists in that, according to FIG. 21, with tensioning straps 41, 42 not connected to the locking flaps 3, 4 (only tensioning straps 42 are shown in the drawing) on the tensioning straps 41, 42 deflection elements or blocks 23 and the side areas of the Instep plate 2 further deflection elements or blocks 23 are provided.
  • further deflection elements or blocks 23 are provided on the locking tabs 3, 4, which are provided between the deflection elements or blocks 23 on the tensioning straps 41, 42 and on the riser plate 2.
  • the deflecting elements or blocks 23 or otherwise configured deflecting elements can, however, also in slots 65 in each case on the edge of the riser plate 2, the locking tabs 3, 4 and / or the tensioning straps (FIG. 24) or only in slots 65 on the locking tab 3, 4 and if necessary be arranged on the tensioning straps (Fig. 25).
  • the deflection elements or blocks 23 can in this case be designed as a semicircular disk 66 or also as a pin, bolt or the like (cf. FIGS. 24 and 25).
  • the deflection elements or blocks 23 or the otherwise configured deflection elements are provided on the outside of the riser plate 2 and only on the adjacent locking tabs 3, 4 in slots 65.
  • a material which is clear as glass or cloudy and which can also be transparent in color can be used as the material for the tensioning straps 41, 42. be used. This makes it possible to quickly identify and remove any contamination under the tensioning straps 41, 42.
  • the shaft material 47 underneath is also visible, as a result of which the aesthetic effect of the shoe is retained and, if appropriate, trademark markings on such a shoe remain visible.
  • the guide channels 13 are formed according to the invention in that the locking tabs 3, 4 each have at least one inwardly extending slot 101 groove 101 on the narrow sides 3.1, 4.1 facing the riser plate 2. At least one deflecting element or block 23 for receiving the tensile forces occurring during tensioning of the tensioning element 11 are inserted into the grooves 101 on both sides of the riser plate 2 and fixedly arranged in the grooves 101, the tensioning element 11 each having an arcuate sliding surface of the deflection elements or blocks 23 wraps around.
  • the width 101.1 of the grooves 101 is the same or only slightly larger than the thickness of the deflection elements or blocks 23.
  • at least one deflection element or block 23 is inserted and fastened, for example glued and / or welded in.
  • a guide groove 25 (FIG. 27A) serving as a sliding surface is provided, in which the tensioning element 11 comes to rest.
  • the deflection elements or blocks 23 consist of a material which is harder and more abrasion-resistant than the material of the riser plate 2 and that of the locking flaps 3, 4, such as polyamide, polyethylene, polyurethane or the like, with a hardness of preferably greater than 75 Shore A.
  • the material of the instep plate 2 and that of the closing flap 3, 4 can therefore preferably be selected from the point of view of elasticity or spring elasticity and less from that of abrasion resistance.
  • the guide channels 13 run in the plane of the riser plate 2 or the closing flaps 3, 4 and are arranged offset with respect to one another in such a way that the tensioning element 11 extends at least approximately in an S-shape or in a serpentine manner. This ensures that the tensioning element 11 is not clamped in partial areas, such as the central area MB, during tensioning over the entire closing area SB.
  • the arrangement of the guide channels 13 is selected such that in the case of closing flaps 3, 4 used on the riser plate 2, an opening 14 of a guide channel 13 is congruent with the opening 14 of the opposite guide channel 13.
  • each locking flap 3, 4 has two guide channels 13 and the riser plate 2 has a guide channel 13 on each side.
  • more guide channels 13 can also be provided both in the closing flaps 3, 4 and in the riser plate 2 be arranged.
  • the radius R of the guide channels 13 is chosen to be as large as possible and, depending on the shoe size, is at least about 7 mm up to about 15 mm.
  • the circular arc of a guide channel 13 extends over an opening angle ⁇ of approximately 100 ° to 180 °
  • the guide channels 13 can also consist of a deflection element made of a material and formed by a curved sleeve exist with low coefficient of friction. Suitable materials for this are, for example, polyamide, polyimide, polyester, polyurethane or even metals with good sliding properties, such as are used in plain bearings.
  • the curved sleeves can be made of stainless steel, titanium or bronze.
  • the central turnbuckle 12 is preferably designed so that the tensioning element 11 can be tightened and loosened from both sides in fine steps, approximately continuously or even continuously.
  • the central turnbuckle 12 is advantageously designed as a rotary lock and rotatably mounted in the riser plate 2.
  • Each locking tab 3, 4 has at least two guide channels 13 or deflecting elements or blocks 23, which are arranged at a distance from the two openings 14 of the guide channel 13 or deflecting elements or blocks 23 arranged opposite on the riser plate 2, so that the guide channel 13 of the riser plate 2 is set to a gap.
  • a single clamping element 11 is provided, which is pulled from the central turnbuckle 12 via the locking tab 3 to the riser plate 2, back to the locking tab 3 and then through the end 5 of the riser plate 2 to the other locking tab 4 and in the same way back to the central turnbuckle 12.
  • the parts 2, 3, 4 of the locking device either consist of a uniform, homogeneous component or the riser plate 2 and the locking tabs 3, 4 each consist of a single component, which are functionally connected to one another by suitable means.
  • the deflecting elements or blocks 23 are attached at mutually opposite positions exclusively in the locking tabs 3, 4, so that the riser plate 2 has no deflecting elements or blocks 23 here.
  • the tensioning element 11 is thus alternately wrapped around the corresponding deflection elements or blocks 23 in the central area MB from the one to the other locking flap 3 and 4 and can be tensioned and relaxed from the central tensioning lock 12. This results in a crossing point 26 of the clamping element 11 in the central area MB of the locking device, whereas in the upper part 27 and in the lower part 28 of the locking area SB the locking tabs 3, 4 are connected to one another without crossing.
  • a sliding film 17 can be provided between the riser plate 2 and the adjacent closing tabs 3, 4, as is shown in FIG. 1 and has already been described.
  • a cover sheet 17.1 is attached to the right side instead of or in addition to this - or in addition to this - on the free side edge of the riser plate 2, in particular integrally formed there, in one or more engages individual pocket-shaped slot (s) 102 of the locking tab 4 and immerses them correspondingly deeply in the locking device 12 when the locking device is tensioned.
  • the deflection elements or blocks 23 are inserted at the appropriate locations, preferably with their front side 23.2, into the slot or slots 102 and fastened there.
  • the cover sheet 17.1 can thus dip into the free section 101.2 of the groove 101 formed in this way, provided that it extends over the entire length of the riser plate 2.
  • the shape of the deflection elements or blocks 23 and the shape of the groove 101 of the locking flaps 3, 4 are adapted to one another such that when the deflection element or block 23 is inserted, at least one rotation about the surface plane 23.3 (Fig. 30A) is not possible.
  • a perfect one 30 and 30A is possible in that a locking projection in the form of the end piece of a bolt 23.4 or a continuous bolt in the deflection element or in the deflection block 23 is formed on both sides of the deflection element or block 23 is inserted, the protruding bolt end pieces 23.4 on both sides snap into an inner or continuous recess or in a corresponding opening 105 of the side walls 103, 104 of the groove 101 by the side walls 103, 104 being elastically pulled apart and after the deflection element or block has been inserted 23 engage the bolt end pieces 23.4 in the recess.
  • the deflection element or the deflection block 23 can also be inserted first into the groove 101 and then by inserting the bolt, the deflection element or the deflection block 23 can be fixed in its position. It is also possible to provide other latching and / or clamping means for fastening and / or fixing the position of the deflection element or block 23. In addition, two or more bolts 23.4 per deflecting element or block 23 or the like can also be provided for securing against rotation.
  • two deflecting elements or blocks 23 can be arranged next to one another transversely to the longitudinal axis of the riser plate 2 arranged, for example molded or attached to the riser plate 2.
  • a loop 11.1 (FIG. 26) engages around these two deflection elements or blocks 23 from a locking tab 3, 4, so that the tensioning element 11 does not have a crossing point having.
  • These deflection elements or blocks 23 can expediently be combined to form a structural unit 23.5, as shown in FIG. 31 in the cross section of the riser plate 2.
  • the structural unit 23.5 has a center piece 23.6.
  • a pin 2.2 of the riser plate 2 is used for this purpose, which extends through a corresponding hole in the middle piece 23.6.
  • the deflection elements or blocks 23 can be fastened to the underside 2.1 of the riser plate 2 by thermal welding, gluing, locking, riveting or the like.
  • the instep shield 2 on the underside 2.1 has a recess 106 (FIG. 31) into which the structural unit 23.5 is installed, so that a disturbing pressure on the instep of the foot is avoided.
  • the structural unit 23.5 or at least its preferably recessed middle piece 23.6 can be fixed in position or additionally fixed in position by a cover plate 107 by the cover plate 107 being plugged and glued and / or latched and / or riveted and / / or is heat-sealed (Fig. 31).
  • the riser plate 2 and the closing flaps 3, 4 consist of a single component, for example of a stamped, injection-molded or cast part.
  • membranes 39 are provided, in particular molded on, for example molded, with the adjacent components. These membranes 39 are preferably collapsible or collapsible, primarily designed as bellows. The membranes 39 are preferably provided above the tensioning element (s), so that there is a completely tight seal to the outside.
  • At least one tensioning strap 41 or 42 can be attached to each locking flap 3, 4 in the region of the midfoot in this embodiment, which stretches laterally around the foot into the sole region of the shoe and with the sole material of the Shoe is firmly connected, for example glued, sewn or riveted. It is also possible to connect these straps 41, 42 to one another by means of one or more brackets.
  • These tensioning straps 41, 42 are indicated by dashed lines in FIG. 29, it being possible for one tensioning strap 41 to be present on one, preferably on the inner locking tab 3, and two tensioning straps 42 on the other, preferably on the outer locking tab 4.
  • the riser plate 2 is fastened to the closing flaps 3, 4 or to a web connecting them on the end 5 of the riser plate 2 facing the shoe tip, preferably detachably fastened by means of a snap connection.
  • FIGS. 32 and 33 Such an embodiment is shown in FIGS. 32 and 33.
  • pins 68 projecting downward are formed in a recess 67 provided for this purpose, which engage in correspondingly adapted holes 69 of a thinned tongue attachment 70 of the instep shield 2, for example snap into place.
  • the parts to be connected can be glued and / or thermally welded.
  • fastening flanges 73 are shown which are formed on the outer edges 71 of the locking flaps 3, 4, are thinned in cross-section and taper towards the end 72.
  • the closing device can be glued or glued on and under the upper material of a corresponding shoe or between an upper material consisting of at least two layers and / or sewn on or sewn on.
  • a fastening flange 50 can also be provided on the tongue extension 70 of the riser plate 2.
  • a fastening flange 73 which is provided on all outer edges 71 of the locking tab 3 and of the web 5, is indicated on the locking tab 3 by the dash-dotted line 75.
  • a corresponding fastening flange can of course also be provided on the locking tab 4 and on the adjoining web 5.
  • the riser shield 2 viewed in plan view, can be tapered towards its front end 5 or towards its end edge 5.1, in particular tapered or wedge-shaped. This is preferably advantageous in the case of a narrow shoe design.
  • a particularly flexible design results in this area.
  • the riser plate 2 is completely separated from the closing flaps 3, 4 and these parts are therefore all formed as a single element.
  • Oer Ristschild 2 is connected at the end 5 in the manner of a tongue to the upper of the shoe, for example by sewing and / or gluing and / or riveting or in some other suitable way.
  • the closing flaps 3, 4 can be attached to the edge surfaces of the shaft material lying in the opening area by sewing and / or gluing and / or rivets or the like.
  • the deflection elements or blocks 23 can be provided on the locking tabs 3, 4 and on the riser plate 2, as has already been shown and described by way of example with reference to FIGS. 1 to 4, 14 and 22 to 26.
  • the deflection elements or blocks 23 can, however, as shown in FIG. 34, be attached to their end regions 41.1, 42.1 when using separate tensioning straps 41, 42. As already described with reference to FIGS. 18 and 19, slots 60 are then preferably provided in the locking tabs 3, 4 for inserting the end regions 41.1, 42.1 of the tensioning straps 41, 42.
  • the deflection elements or blocks 23 also advantageously each have a stop edge 61, which comes into operative connection with a slot edge, for example with the upper slot edge 62 of the slot 60, during the closing process.
  • the deflection elements or blocks 23 of the riser plate 2 can be arranged either on the top or on the bottom thereof, as has already been described.
  • closing flaps 3, 4 and tensioning straps 41, 42 as individual elements, material weaknesses and / or waves and / or shafts and / or shafts and / or or grooves 15.1 can be provided in order to obtain a high degree of flexibility in these areas.
  • edges 3.1, 4.1 of the locking flaps 3, 4 are located preferably parallel to the adjacent edges of the riser plate 2.
  • the riser plate 2 and the closing flaps 3, 4 form a unitary component or a unitary component composed of individual parts
  • the parts 2, 3 and 4 preferably consist of one resilient plastic with a degree of hardness in the range of 75 Shore A to 90 Shore A. These plastic parts are therefore part of the "hard plastic" parts.
  • these components can consist of less hard, elastic plastic parts, preferably with a degree of hardness in the range from 60 Shore A to 70 Shore A.
  • the deflection elements are made or blocks 23 made of a very hard plastic material, preferably with a degree of hardness in the range from 75 Shore A to 90 Shore A.
  • the riser plate 2 and the locking flaps 3, 4 can each consist of separate components.

Abstract

A shoe comprises a closure device, an upper made of flexible material which yields to the tensile stresses in the region of the closure and an instep shield which covers the instep. The instep shield can be attached on both sides to side side parts of the upper. To enable the instep shield and the side parts of the upper to be clamped together with a closure or clamping force as uniform as possible over the whole closure region, the end (5) of the instep shield (2) nearer the tip is movably connected on either side to closure flaps (3, 4) made from resilient material which are essentially parallel to, or make a small acute angle (α) with, the instep shield (2). Alternatively, each of these parts (2; 3; 4) consists of a separate component. The instep shield (2) has a central turnbuckle (12) with at least one tensioning element (11) which enables the closure flaps (3, 4) and the side parts (7) of the upper (8) to move relative to the instep shield (2). The tensioning element (11) connects the closure flaps (3, 4) to the instep shield (2) at least in the upper and lower parts (27, 28) of the instep shield (2) without crossing.

Description

Die vorliegende Erfindung bezieht sich auf einen mit einer Schließvorrichtung versehenen Schuh, insbesondere Sport-, Freizeit- oder Rehabilitationsschuh, mit einem gegenüber Zugspannungen im Schließbereich nachgiebigen Schaftmaterial oder mit mehreren nachgiebigen Schaftmaterialien gemäß dem Oberbegriff des Anspruches 1.The present invention relates to a shoe provided with a locking device, in particular sports, leisure or rehabilitation shoe, with a shaft material which is flexible with respect to tensile stresses in the closing area or with a plurality of flexible shaft materials according to the preamble of claim 1.

Ein Sportschuh, nämlich Fußballstiefel, mit einer Schließvorrichtung dieser Art ist aus der DD-PS 89 796 bekannt. Bei diesem vorbekannten Fußballstiefel ist jede Seite des Ristschildes im Ristbereich mit je einer an den Seitenteilen des Schuhschaftes vorgesehenen Lasche durch eine Verschnürung verspannbar, indem ein Schnürsenkel durch Verschnürungslöcher im Ristschild und in den seitlichen Laschen hindurchgefädelt und hinter dem Fersenteil des Fußballstiefels verschnürbar ist. Mit einer derartigen Schnüranordnung werden zwar punktuelle Drücke beim Festziehen einer üblicherweise über den Rist verlaufenden Schnürung vermindert und damit die Blutzirkulation im Ristbereich nicht mehr so stark beeinträchtigt. Beim Festziehen bzw. Verspannen des Schnürsenkels beiderseits des Ristschildes ist jedoch ein gleichmäßiges Schnüren vom untersten bis zum obersten Verschnürungsloch nicht möglich. Dies ist dadurch bedingt, daß die Zugspannung vom freien Ende des Schnürsenkels aus bis zum letzten Verschnürungsloch durch hohe Reibungskräfte schnell abnimmt. Ein besonders hoher Reibungsschluß zwischen dem Ristschild und den seitlichen Laschen einerseits und dem Schnürsenkel andererseits wird beim Festziehen durch den Schließdruck des Ristschildes und der seitlichen Laschen auf die jeweilige Unterlage und den dazwischen eingeklemmten Schnürsenkel bewirkt.A sports shoe, namely football boots, with a locking device of this type is known from DD-PS 89 796. In this previously known football boot, each side of the instep shield can be tied in the instep area with a tab provided on the side parts of the shoe upper by a lacing by threading a shoelace through tying holes in the instep plate and in the side flaps and tying behind the heel part of the football boot. With such a lacing arrangement, punctual pressures when tightening a lacing that usually runs over the instep are reduced and thus the blood circulation in the instep area is no longer impaired as much. When tightening or tensioning the laces on both sides of the riser plate, however, it is not possible to tie them evenly from the bottom to the top lacing hole. This is due to the fact that the Tension quickly decreases from the free end of the laces to the last lacing hole due to high frictional forces. A particularly high frictional connection between the instep plate and the side flaps on the one hand and the shoelaces on the other hand is brought about when tightened by the closing pressure of the instep plate and the side flaps on the respective base and the shoelaces clamped in between.

Bei diesem bekannten Fußballstiefel sind außerdem die Schließlappen unmittelbar an der Sohle, nämlich zwischen der Sohle und dem Obermaterial, befestigt. Hierdurch ist eine Verspannung zwischen dem Ristschild und dem Obermaterial nicht möglich. Der Ristschild soll dort, wie sich aus Seite 3, letzter Absatz, Zeilen 14 und 15 ergibt, lediglich nach unten und hinten in Richtung auf den Rist des Trägers gezogen werden können.In this known football boot, the closing flaps are also attached directly to the sole, namely between the sole and the upper. This prevents tension between the riser plate and the upper material. As can be seen from page 3, last paragraph, lines 14 and 15, the riser plate should only be able to be pulled down and back towards the instep of the wearer.

Ferner ist es aus der FR-A-2 598 292 bekannt, an den dem Rist zugewandten Endkanten der Seitenteile des Schuhschaftes je eine Führung in Form einer Röhre vorzusehen und die Verspannung dieser beiden Seitenteile des Schuhschaftes über eine Kugelkette durchzuführen, deren eines Ende in ein an der Zunge angebrachtes Befestigungselement eingehängt ist. Hierbei ist das eine Seitenteil des Schuhschaftes allerdings mit der Zunge mittels einer Naht fest verbunden und die Kugelkette wird mit dem anderen Ende im Bereich dieser an der Zunge befestigten Führung durch einen auslenkbaren Führungsabschnitt gehalten. Dadurch muß das frei bewegliche Seitenteil des Schuhschaftes beim Spannvorgang über eine lange Strecke über die Zunge gezogen werden, wobei eine Faltung der üblicherweise nachgiebigen Zunge wegen des hohen Reibungsschlusses zwischen dem Seitenteil und der Zunge unvermeidlich ist.Furthermore, it is known from FR-A-2 598 292, at the end edges of the side parts of the instep facing the instep To provide a shoe in the form of a tube and the bracing of these two side parts of the shoe shaft via a ball chain, one end of which is suspended in a fastening element attached to the tongue. Here, however, one side part of the shoe upper is firmly connected to the tongue by means of a seam and the ball chain is held at the other end in the region of this guide fastened to the tongue by a deflectable guide section. As a result, the freely movable side part of the shoe upper has to be pulled over the tongue over a long distance during the tensioning process, a folding of the normally flexible tongue being inevitable because of the high frictional connection between the side part and the tongue.

Mit der vorliegenden Erfindung soll demgegenüber die Aufgabe gelöst werden, die vorbekannte Doppelschnürung mit einem Ristschild im Ristbereich so zu verbessern, daß es möglich ist, den Ristschild und die Seitenteile des Schuhschaftes über den gesamten Schließbereich in einfacher Weise und mit möglichst gleichmäßiger Schließ- bzw. Spannkraft gegeneinander zu spannen, um eine möglichst gleichmäßige Druckverteilung längs des gesamten Schließbereiches, möglichst auch über den Bereich der Wölbung des Ristes des Fußes, also quer zur Schuhlängsrichtung, zu gewährleisten.In contrast, the present invention is intended to achieve the object of improving the previously known double lacing with an instep plate in the instep area in such a way that it is possible to simply insert the instep plate and the side parts of the shoe shaft over the entire closing area and with closing or Tension the clamping force against each other in order to ensure the most uniform possible pressure distribution along the entire closing area, if possible also over the area of the arch of the instep of the foot, that is to say transversely to the longitudinal direction of the shoe.

Diese Aufgabe wird durch die im Kennzeichen des Anspruches 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of claim 1.

Durch die vorliegende Erfindung ist sichergestellt, daß die gegenseitige Lage der Spannelement-Führungen im Ristschild bzw. in den Schließlappen genau zueinander festgelegt und optimiert ist und daß das oder die Spannelement(e) nicht durch den Schließdruck des Ristschildes und der Schließlappen eingeklemmt wird bzw. werden und zwar auch nicht punktuell und/oder in Teilbereichen des Schließbereiches. Durch das Zentralspannschloß ist in einfacher Weise eine weitestgehend kontinuierliche Einstellung der Verspannung möglich. Die erfindungsgemäß ausgebildete Schließvorrichtung kann bei Verwendung einer zusammengebauten Anordnung aus Ristschild und Schließlappen als Einheit vorgefertigt, vorgeprüft und als sicher funktionierende Schließeinheit an den entsprechenden Schuhen, insbesondere Sport-, Freizeit- oder Rehabilitationsschuhen, befestigt werden.The present invention ensures that the mutual position of the tensioning element guides in the riser plate or is precisely defined and optimized with respect to one another in the locking tabs and that the clamping element (s) is not or will not be pinched by the closing pressure of the riser plate and the locking tabs, and also not selectively and / or in partial areas of the closing area. A largely continuous adjustment of the bracing is possible in a simple manner by means of the central turnbuckle. The locking device designed according to the invention can be prefabricated as a unit when using an assembled arrangement of instep shield and locking tab, pre-tested and attached to the corresponding shoes, in particular sports, leisure or rehabilitation shoes, as a securely functioning clamping unit.

Bei der Verwendung von gesonderten Einzelteilen für den Ristschild einerseits und für die Schließlappen andererseits ist insbesondere der weitere Vorteil gegeben, daß bei unverändert hoher Längsbiegesteifigkeit im Ristbereich eine gute Anpassungsfähigkeit dieser Teile der Zentralschließvorrichtung quer über den Ristbereich gewährleistet ist. Dies gilt auch für die weiteren Ausführungsformen mit scharnierartig oder gelenkig ausgestalteten Verbindungsstellen oder Verbindungsbereichen zwischen dem Ristschild und den Schließlappen.When using separate individual parts for the instep shield on the one hand and for the closing flaps on the other hand, there is in particular the further advantage that a good adaptability of these parts of the central locking device is ensured across the instep area with unchanged high longitudinal bending stiffness in the instep area. This also applies to the further embodiments with hinge-like or articulated connection points or connection areas between the riser plate and the locking tabs.

Die Anordnung des bzw. der Spannelemente(s) kann grundsätzlich kreuzungsfrei erfolgen.The arrangement of the clamping element (s) can in principle be carried out without crossing.

Es können aber auch je nach Schafthöhe des Schuhes eine oder mehrere Kreuzungen des bzw. der Spannelements(e) vorhanden sein. Durch eine besondere Ausgestaltung der sich kreuzenden Nuten ist auch bei diesen Ausführungsformen der vorliegenden Erfindung eine reibungsarme bzw. reibungslose Kreuzung des bzw. der Spannelemente(s) gewährleistet, da diese so ausgestaltet sein können, daß sie an keiner Stelle aufeinanderliegen. Dadurch ist eine leichte Verspannung und Entspannung der Schließvorrichtung möglich und außerdem wird ein Verschleiß durch Vermeiden eines hohen Druckes an der Kreuzungsstelle des bzw. der Spannelemente(s) vollkommen vermieden.However, one or more crossings of the tensioning element (s) can also be present, depending on the shaft height of the shoe. A special configuration of the intersecting grooves ensures that the clamping element (s) crosses with little or no friction in these embodiments of the present invention, since these can be designed such that they do not lie on one another at any point. As a result, the locking device can be easily tensioned and relaxed and, in addition, wear is avoided completely by avoiding high pressure at the point of intersection of the clamping element (s).

Durch die Verwendung von elastischem oder federelastischem Material für die Schließvorrichtung entsteht an der Schuhöffnung am Ende des Schließbereiches ein relativ stabiler Abschlußrand. Dieser kann in Weiterbildung der Erfindung dazu dienen, durch eine spezielle Ausgestaltung des Zungenendteils die Lage der Zunge bezüglich der Schließvorrichtung zu stabilisieren bzw. zu fixieren und außerdem eine gezielte Führung der sich öffnenden bzw. schließenden oberen Endteile des Schuhschaftes zu ermöglichen.The use of elastic or resilient material for the closing device creates a relatively stable end edge at the shoe opening at the end of the closing area. In a further development of the invention, this can be used by a special configuration of the tongue end part to stabilize or fix the position of the tongue with respect to the closing device and also to enable targeted guidance of the opening or closing upper end parts of the shoe upper.

Die Verwendung von Zentralspannschlössern als Schließvorrichtung für Skischuhe mit im Schließbereich schalenförmigen, praktisch hinsichtlich Zugspannungen nicht nachgiebigen Schließlappen aus Kunststoff ist aus der DE-AS 20 46 890 bekannt. Diese Art von Schließvorrichtungen ist jedoch nicht auf Schuhe mit gegenüber Zugspannungen im Schließbereich nachgiebigen Schaftmaterialien anwendbar, da sich der Schließbereich der vorbekannten Schließvorrichtungen auf einen nur kurzen Abschnitt der Schließlappen dieser starren Skischuhe für den alpinen Skilauf erstreckt.The use of central turnbuckles as a locking device for ski boots with shell-shaped plastic closing flaps in the closing area, which are practically non-compliant with regard to tensile stresses, is known from DE-AS 20 46 890. However, this type of closing device is not applicable to shoes with shaft materials that are flexible with respect to tensile stresses in the closing area, since the closing area of the previously known closing devices extends to only a short section of the locking tabs of these rigid ski boots for alpine skiing.

Entsprechendes gilt auch für den weiterhin vorbekannten Zentralverschluß für alpine Skischuhe gemäß der DE-AS 22 13 720, bei dem Seilschlingen als Zugelement Verwendung finden. Ein weiterer Zentralverschluß mit Seilschlingen ist aus der DE-OS 36 26 837 für alpine Skischuhe bekannt. Die vorbekannten Zentralverschlüsse können nicht als vorgefertigte, vorgeprüfte und vormontierte Einheit hergestellt werden, so daß bei diesen alpinen Skischuhen deren Zentralverschlüsse von Fall zu Fall aufeinander abgestimmt und aneinander angepaßt werden müssen.The same applies to the still known central lock for alpine ski boots according to DE-AS 22 13 720, in which rope loops are used as a tension element. Another central lock with rope loops is known from DE-OS 36 26 837 for alpine ski boots. The known central locks cannot be manufactured as a prefabricated, pre-tested and preassembled unit, so that with these alpine ski boots their central locks have to be coordinated and adapted to one another from case to case.

Weitere vorteilhafte Einzelheiten der Erfindung sind in den Unteransprüchen angegeben und werden nachfolgend anhand der in der Zeichnung dargestellten Ausführungsbeispiele näher beschrieben.Further advantageous details of the invention are specified in the subclaims and are described in more detail below with reference to the exemplary embodiments shown in the drawing.

Es zeigen:

Fig. 1
eine Draufsicht auf einen den Ristbereich darstellenden Ausschnitt eines Sportschuhes mit der erfindungsgemäßen Schließvorrichtung,
Fig. 2
eine Ansicht gemäß dem Schnitt I-I der Fig. 1,
Fig. 3
eine Ansicht gemäß dem Schnitt II-II der Fig. 1,
Fig. 4
eine perspektivische Ansicht eines Sportschuhes mit einem Bowdenzug als Spannelement und einem Zentralspannschloß,
Fig. 5
den Ristschild mit Schließlappen und mit dem Zentralspannschloß in einer Draufsicht bei abgenommener Abdeckung,
Fig. 5 A
eine Ansicht gemäß dem Schnitt III-III der Fig. 5,
Fig. 6
eine Ristschild- und Lappenabdeckung für eine Schließanordnung gemäß Fig. 5,
Fig. 6 A
eine Ansicht gemäß dem Schnitt IV-IV der Fig. 6,
Fig. 7
eine Draufsicht auf eine Schließvorrichtung ohne Abdeckung mit zusätzlichen seitlichen Spannbändern,
Fig.8u.9
je eine Seitenansicht eines Sport- oder Freizeitschuhes in Form eines Halbschuhes mit unterschiedlicher Spannbandgestaltung,
Fig. 10
eine Ansicht gemäß dem Schnitt V-V der Fig.9,
Fig. 11 und 12
die Ansichten des Zungenendteils, jeweils im Längsschnitt,
Fig. 13
eine Ansicht der Zunge gemäß dem Schnitt VI-VI der Fig. 12,
Fig. 14
eine Draufsicht auf eine weitere Ausführungsform der erfindungsgemäßen Schließvorrichtung mit besonders biegsam ausgeführtem Vorderbereich am unteren Ende der Schließvorrichtung,
Fig. 15
die Draufsicht auf eine abgewandelte Ausführungsform der Erfindung hinsichtlich des Ristschildes und der Lappenabdeckung,
Fig. 16
eine perspektivische Ansicht einer weiteren Ausführungsform der erfindungsgemäßen Schließvorrichtung mit geschlossenen Spannbändern als Prinzipskizze,
Fig. 17
die Teilansicht einer Draufsicht auf eine weitere Ausführungsform der erfindungsgemäßen Schließvorrichtung mit von den Schließlappen getrennten Spannbändern,
Fig. 18
einen Schnitt des linken Teils der Schließvorrichtung gemäß Fig. 17 von rückwärts her gesehen,
Fig. 19
einen Teil der erfindungsgemäßen Schließvorrichtung in perspektivischer Ansicht, mit in Schlitzen der Schließlappen eingeschobenen Spannbändern der in Fig. 18 im Schnitt gezeigten Ausführung,
Fig. 20
eine perspektivische Ansicht der erfindungsgemäßen Schließvorrichtung mit zwei geschlossenen, durch Stege miteinander verbundenen Spannbändern,
Fig. 21
einen Abschnitt der erfindungsgemäßen Schließvorrichtung mit nicht mit den Schließlappen verbundenen Spannbändern in einer Draufsicht,
Fig. 22 bis 25
mögliche Ausgestaltungen der Anordnung der Umlenkelemente,
Fig. 26
eine Draufsicht auf einen den Ristbereich darstellenden Ausschnitt eines Sportschuhes mit der erfindungsgemäßen Schließvorrichtung,
Fig. 27
eine Ansicht gemäß dem Schnitt VII-VII der Fig.26,
Fig. 27A
einen vergrößerten Abschnitt des einen Schließlappens mit in dessen Nut eingesetztem Umlenkelement,
Fig. 28
eine Ansicht gemäß dem Schnit VIII-VIII der Fig.26,
Fig. 29
den Ristschild mit Schließlappen und dem Zentralspannschloß in einer Draufsicht mit einem sich kreuzenden Spannelement,
Fig. 30
eine Draufsicht auf eine bauliche Einheit aus dem Ristschild und den Schließlappen mit einer zwischen diesen Teilen als Abdeckung vorgesehenen Membran,
Fig. 30A
ein im Ausführungsbeispiel gemäß Fig. 30 verwendetes Umlenkelement in perspektivischer Darstellung,
Fig. 30B
eine Teilansicht, ähnlich der in Fig. 27A dargestellten,
Fig. 31
einen Querschnitt durch einen Ristschild mit Umlenkelementen in einer Vertiefung dieses Ristschildes,
Fig. 32
den der Schuhspitze zugewandten unteren Abschnitt der Schließvorrichtung in der Draufsicht,
Fig. 33
die Ansicht des Schnittes IX-IX der Fig. 32 und
Fig. 34
die Teilansicht einer Draufsicht auf eine Schließvorrichtung mit vom Ristschild getrennten Schließlappen sowie mit von diesen getrennt angeordneten Spannbändern.
Show it:
Fig. 1
2 shows a plan view of a section of a sports shoe that represents the instep area with the closing device according to the invention,
Fig. 2
2 shows a view according to section II of FIG. 1,
Fig. 3
2 shows a view according to section II-II of FIG. 1,
Fig. 4
a perspective view of a sports shoe with a Bowden cable as a tensioning element and a central turnbuckle,
Fig. 5
the instep plate with locking tabs and with the central turnbuckle in a top view with the cover removed,
Fig. 5 A
5 shows a view according to section III-III of FIG. 5,
Fig. 6
5 a cover plate and tab cover for a locking arrangement according to FIG. 5,
Fig. 6 A
6 shows a view according to section IV-IV of FIG. 6,
Fig. 7
a plan view of a locking device without a cover with additional side straps,
Fig.8u.9
a side view of a sport or leisure shoe in the form of a low shoe with different strap design,
Fig. 10
9 shows a view according to the section VV of FIG. 9,
11 and 12
the views of the tongue end part, each in longitudinal section,
Fig. 13
a view of the tongue according to section VI-VI of FIG. 12,
Fig. 14
2 shows a plan view of a further embodiment of the locking device according to the invention with a particularly flexible front area at the lower end of the locking device,
Fig. 15
the top view of a modified embodiment of the invention with respect to the instep shield and the flap cover,
Fig. 16
2 shows a perspective view of a further embodiment of the locking device according to the invention with closed tensioning straps as a schematic diagram,
Fig. 17
the partial view of a plan view of a further embodiment of the locking device according to the invention with tensioning straps separated from the locking tabs,
Fig. 18
17 shows a section of the left part of the locking device according to FIG. 17 from the rear,
Fig. 19
part of the locking device according to the invention in a perspective view, with tensioning straps of the embodiment shown in section in FIG. 18 inserted into the slots of the locking tabs,
Fig. 20
2 shows a perspective view of the locking device according to the invention with two closed tensioning straps connected by webs,
Fig. 21
a section of the locking device according to the invention with straps not connected to the locking tabs in a plan view,
22 to 25
possible configurations of the arrangement of the deflection elements,
Fig. 26
2 shows a plan view of a section of a sports shoe that represents the instep area with the closing device according to the invention,
Fig. 27
a view according to section VII-VII of Figure 26,
Figure 27A
3 shows an enlarged section of the one closing flap with a deflection element inserted into its groove,
Fig. 28
a view along section VIII-VIII of Figure 26,
Fig. 29
the instep plate with locking tabs and the central turnbuckle in a top view with a crossing tensioning element,
Fig. 30
2 shows a plan view of a structural unit consisting of the riser plate and the closing flaps with a membrane provided as a cover between these parts,
Figure 30A
30 shows a deflection element used in the exemplary embodiment according to FIG. 30 in a perspective illustration,
Figure 30B
a partial view, similar to that shown in Fig. 27A,
Fig. 31
3 shows a cross section through a riser plate with deflection elements in a recess of this riser plate,
Fig. 32
the lower section of the closing device facing the toe in plan view,
Fig. 33
the view of section IX-IX of Fig. 32 and
Fig. 34
the partial view of a top view of a locking device with closing tabs separated from the riser plate and with tensioning straps arranged separately therefrom.

Mitt ist in Fig. 1 ein Abschnitt eines Sportschuhes, und zwar dessen Ristbereich, bezeichnet. oberhalb des Ristes ist ein Ristschild 2 vorgesehen, der mit zwei seitlichen Schließlappen 3, 4 dadurch eine bauliche Einheit bildet, daß letztere an dem der Schuhspitze zugewandten Ende 5 des Ristschildes 2 angeformt sind und von da aus im wesentlichen parallel oder in einem kleinen spitzen Winkel α von etwa 5° bis 15° geneigt zum Ristschild 2 verlaufen. Die Schließlappen 3, 4 können am Ende 5 am Ristschild 2 auch gelenkig, beispielsweise über ein Scharnier oder vorzugsweise über ein Federgelenk befestigt sein.In Fig. 1, a section of a sports shoe, namely its instep area, is designated in the middle. Above the instep there is a riser plate 2 which, with two side closing flaps 3, 4, forms a structural unit in that the latter are formed on the end 5 of the instep plate 2 facing the toe and from there essentially parallel or at a small acute angle α slope from about 5 ° to 15 ° to the riser plate 2. The closing flaps 3, 4 can also be articulated at the end 5 on the riser plate 2, for example via a hinge or preferably via a spring joint.

Der Schließlappen 3 ist mit der einen Seite 6 und der Schließlappen 4 ist mit der anderen Seite 7 des Obermaterials bzw. des Schuhschaftes 8 dieses Sportschuhes fest verbunden, beispielsweise vernäht und/oder verklebt.The closing flap 3 is firmly connected to one side 6 and the closing flap 4 is firmly connected to the other side 7 of the upper material or the shoe upper 8 of this sports shoe, for example sewn and / or glued.

Als Ausführungsbeispiel wird auf die Klebestellen 9 in Fig. 2 verwiesen.As an exemplary embodiment, reference is made to the adhesive points 9 in FIG. 2.

Der Ristschild 2 und die Schließlappen 3, 4 bestehen aus elastischem, federelastischem bzw. hartelastischem Material. Im entlasteten Zustand verharren diese Teile der Schließvorrichtung im Öffnungszustand, den die Fig. 1 zeigt. Als Materialien für den Ristschild 2 und die Schließlappen 3, 4 kommen insbesondere Thermoplaste oder Duroplaste zur Anwendung, beispielsweise Polyamid, Polyimid, Polyurethan oder dgl..The riser plate 2 and the closing flaps 3, 4 consist of elastic, spring-elastic or hard-elastic material. In the relieved state, these parts of the locking device remain in the open state, which is shown in FIG. 1. Thermoplastics or thermosets, for example polyamide, polyimide, polyurethane or the like, are used in particular as materials for the riser plate 2 and the closing flaps 3, 4.

Das obermaterial des Schuhschaftes 8 besteht aus Leder oder Kunstleder oder aus einem Fasergewebe und es kann auch mit Besätzen, beispielsweise aus Leder oder Kunstleder oder aus anderen Materialien versehen sein. In Fig. 1 ist unterhalb des Ristschildes 2 ein das Gewicht des Sportschuhes reduzierendes Fasergewebeteil 8a eingezeichnet.The upper material of the upper 8 consists of leather or synthetic leather or of a fiber fabric and it can also be provided with trimmings, for example made of leather or synthetic leather or other materials. In Fig. 1, below the instep plate 2, a fiber fabric part 8a reducing the weight of the sports shoe is shown.

Die daran anschließenden Teile 6, 7 des Schuhschaftes 8 bestehen, wie üblich, aus Leder, vorzugsweise Veloursleder. Das obermaterial des Schuhschaftes 8 kann innen ein Futter aufweisen und es kann auch mit einer inneren Polsterschicht versehen sein.The adjoining parts 6, 7 of the shoe upper 8 consist, as usual, of leather, preferably suede. The upper material of the shoe upper 8 can have a lining on the inside and it can also be provided with an inner cushion layer.

Unterhalb der Seitenteile 6 und 7 des Schuhschaftes 8 ist eine den Schließbereich komplett abdeckende Zunge 10 angeordnet, die ebenfalls gepolstert sein kann. Als Polsterung dient vorzugsweise ein thermoplastisches, druckübertragendes Polstermaterial in Form von geschäumtem Polyäthylen, Polyurethan oder Äthylen-Vinyl-Acetat.Below the side parts 6 and 7 of the shoe upper 8 there is a tongue 10 which completely covers the closing area and which can also be padded. A thermoplastic, pressure-transmitting cushioning material in the form of foamed polyethylene, polyurethane or ethylene-vinyl acetate is preferably used as the cushioning.

Die Schließlappen 3, 4 können durch ein als Seil oder Band, beispielsweise als Stahldraht, Draht- oder Kunststoffseil ausgebildetes Spannelement 11 gegen den Ristschild 2 gezogen werden. Hierzu ist das Spannelement 11, ausgehend von einem am Ristschild 2 vorgesehenen Zentralspannschloß 12, abwechselnd vom Ristschild 2 zum Schließlappen 3 bzw. 4 und wieder zurück geführt und verläuft in dort angebrachten Führungen in Form von kreisbogenförmigen Führungskanälen 13. Die Führungskanäle 13 verlaufen in der Ebene des Ristschildes 2 bzw. der Schließlappen 3, 4 und sind dabei derart gegeneinander versetzt angeordnet, daß das Spannelement 11 wenigstens annähernd S-förmig oder schlangenlinienförmig verläuft. Hierdurch ist gewährleistet, daß das Spannelement 11 beim Verspannen über den gesamten Schließbereich SB auch nicht in Teilbereichen, wie dem Mittenbereich MB, eingeklemmt wird. Die Anordnung der Führungskanäle 13 ist so gewählt, daß bei an den Ristschild 2 herangezogenen Schließlappen 3, 4 jeweils eine Öffnung 14 eines Führungskanals 13 der Öffnung 14 des gegenüberliegenden Führungskanals 13 deckungsgleich gegenübersteht.The locking tabs 3, 4 can be pulled against the riser plate 2 by a tensioning element 11 designed as a rope or band, for example as a steel wire, wire or plastic rope. For this purpose, the tensioning element 11, starting from a central turnbuckle 12 provided on the riser plate 2, alternates from the riser plate 2 to the locking tab 3 or 4 and led back again and runs in the guides attached there in the form of circular-arc-shaped guide channels 13. The guide channels 13 run in the plane of the riser plate 2 or the locking tabs 3, 4 and are offset from one another in such a way that the clamping element 11 is at least approximately S-shaped or in a serpentine shape. This ensures that the tensioning element 11 is not clamped in partial areas, such as the central area MB, during tensioning over the entire closing area SB. The arrangement of the guide channels 13 is selected such that in the case of closing flaps 3, 4 used on the riser plate 2, an opening 14 of a guide channel 13 is congruent with the opening 14 of the opposite guide channel 13.

Auch wenn grundsätzlich ein oder mehrere Kreuzungen des Spannelementes bzw. der Spannelemente 11 im Mittenbereich MB nicht ausgeschlossen werden sollen, ist die Anordnung aber bei allen Ausführungsbeispielen so getroffen, daß im unteren und oberen Teil 27, 28 des Ristschildes 2 das oder die Spannelement(e) 11 kreuzungsfrei verläuft bzw. verlaufen.Even if basically one or more crossings of the tensioning element or the tensioning elements 11 in the central area MB are not to be excluded, the arrangement is made in all the exemplary embodiments such that the tensioning element or elements (e ) 11 runs or run without crossing.

Im dargestellten Ausführungsbeispiel besitzt jeder Schließlappen 3, 4 zwei Führungskanäle 13 und der Ristschild 2 an jeder Seite einen Führungskanal 13. Insbesondere bei hochschäftigen Sport-, Freizeit- oder Rehabilitationsschuhen können auch mehr Führungskanäle 13 sowohl in den Schließlappen 3, 4 als auch im Ristschild 2 angeordnet sein.In the exemplary embodiment shown, each locking flap 3, 4 has two guide channels 13 and the riser plate 2 has a guide channel 13 on each side. In particular in the case of high-strength sports, leisure or rehabilitation shoes, more guide channels 13 can also be provided both in the closing flaps 3, 4 and in the riser plate 2 be arranged.

Der Radius R der Führungskanäle 13 ist möglichst groß gewählt und beträgt mindestens etwa 7 mm bis zu etwa 15 mm je nach Schuhgröße. Der Kreisbogen eines Führungskanals 13 erstreckt sich über einen Öffnungswinkel β von etwa 100° bis 180°.The radius R of the guide channels 13 is chosen to be as large as possible and is at least about 7 mm up to about 15 mm depending on the shoe size. The circular arc of a guide channel 13 extends over an opening angle β of approximately 100 ° to 180 °.

Um eine möglichst geringe Reibung zwischen dem Spannelement 11 und der Wandung der Führungskanäle 13 zu erhalten, bestehen der Ristschild 2 und die Schließlappen 3, 4 aus abriebfestem Material mit geringem Reibungskoeffizienten oder die Führungskanäle 13 sind mit einem derartigen Material ausgekleidet. Die Führungskanäle 13 können aber auch aus einer gebogenen Hülse aus einem Material mit geringem Reibungskoeffizienten bestehen. Als Materialien hierfür eignen sich beispielsweise Polyamid,. Polyimid, Polyester, Polyurethan oder auch Metalle mit guten Gleiteigenschaften,wie sie bei Gleitlagern zum Einsatz kommen. Insbesondere können die gebogenen Hülsen aus Edelstahl, Titan oder Bronce bestehen.In order to obtain the lowest possible friction between the tensioning element 11 and the wall of the guide channels 13, the riser plate 2 and the closing flaps 3, 4 are made of abrasion-resistant material with a low coefficient of friction or the guide channels 13 are lined with such a material. The guide channels 13 can also consist of a curved sleeve made of a material with a low coefficient of friction. Suitable materials for this are, for example, polyamide. Polyimide, polyester, polyurethane or even metals with good sliding properties, such as those used in plain bearings. In particular, the curved sleeves can be made of stainless steel, titanium or bronze.

Das Zentralspannschloß 12 ist vorzugsweise so ausgebildet, daß das Spannelement 11 von beiden Seiten her feinstufig, annähernd stufenlos oder sogar stufenlos gespannt und gelockert werden kann. Mit Vorteil ist das Zentralspannschloß 12 als Drehverschluß ausgebildet und im Ristschild 2 drehbar gelagert.The central turnbuckle 12 is preferably designed so that the tensioning element 11 can be tightened and loosened from both sides in fine steps, approximately continuously or even continuously. The central turnbuckle 12 is advantageously designed as a rotary lock and rotatably mounted in the riser plate 2.

Jeder Schließlappen 3, 4 besitzt wenigstens zwei Führungskanäle 13, die im Abstand der beiden Öffnungen 14 des auf den Ristschild 2 gegenüber angebrachten Führungskanals 13 angeordnet sind, so daß der Führungskanal 13 des Ristschildes 2 auf Lücke gesetzt ist. Beim Ausführungsbeispiel ist ein einziges Spannelement 11 vorgesehen, das vom Zentralspannschloß 12 über den Scließlappen 3 durch das Ende 5 des Ristschildes 2 zum anderen Schließlappen 4 zurück zum Zentralspannschloß 12 gezogen ist. Grundsätzlich wäre es auch möglich, zwei Zentralspannschlösser zu verwenden, mit denen je ein Spannelement zwischen dem Schließlappen 3 und dem Ristschild 2 einerseits und dem Schließlappen 4 und dem Ristschild 2 andererseits bedient wird.Each locking tab 3, 4 has at least two guide channels 13, which are arranged at a distance from the two openings 14 of the guide channel 13 mounted opposite on the riser plate 2, so that the guide channel 13 of the riser plate 2 is set to a gap. In the exemplary embodiment, a single clamping element 11 is provided, which is pulled back from the central clamping lock 12 via the closing flap 3 through the end 5 of the riser plate 2 to the other locking flap 4 to the central clamping lock 12. In principle, it would also be possible to use two central turnbuckles, each of which is used to operate a tensioning element between the locking tab 3 and the riser plate 2 on the one hand and the locking tab 4 and the riser plate 2 on the other.

Da der Ristschild 2 bevorzugt aus federelastischem bzw. hartelastischem Kunststoffmaterial besteht, um seine Funktion als großflächige Druckverteilungsplatte gut erfüllen zu können, ist es vorteilhaft, die Flexibilität des Ristschildes 2 zumindest im unteren Bereich durch querverlaufende Materialverdünnungsstellen, wie Rillen 15, zu erhöhen, wie anhand der Fig. 1 und 4 dargestellt ist. Anstelle von Rillen 15 kann auch ein Wellenprofil oder ein Mäanderprofil vorgesehen sein, wodurch neben der erforderlichen Flexibilität auch noch ausreichende Dehnungsreserven geschaffen werden.Since the riser plate 2 is preferably made of resilient or hard-elastic plastic material in order to be able to perform its function well as a large-area pressure distribution plate, it is advantageous to increase the flexibility of the riser plate 2 at least in the lower region by transverse material thinning points, such as grooves 15, as shown in FIG 1 and 4 is shown. Instead of grooves 15, a corrugated profile or a meandering profile can also be provided, whereby in addition to the necessary flexibility, sufficient expansion reserves are also created.

Unterhalb des Ristschildes 2 und der Schließlappen 3 bzw. 4 sind den Öffnungsspalt 16 überdeckende Gleitfolien 17, beispielsweise in Form von Kunststoffblättern mit einer Dicke von etwa 0,2 mm bis 0,5 mm vorgesehen. Diese Gleitfolien 17 sind einseitig entweder am Ristschild 2 oder jeweils am Schließlappen 3 bzw. 4 angeformt oder befestigt, vorzugsweise angeklebt. Die Gleitfolien 17 ermöglichen ein leichtes, reibungsarmes Heranziehen der Schließlappen 3, 4 gegen den Ristschild 2 und ein ebensolches reibungsarmes Wegfedern im entlasteten Zustand. Die Gleitfolien 17 unterstützen also die parallelen oder keilförmigen Schließbewegungen der Schließlappen 3, 4 zu dem Ristschild 2 hin oder von diesem weg.Below the instep plate 2 and the closing flaps 3 and 4, slide films 17 covering the opening gap 16 are provided, for example in the form of plastic sheets with a thickness of approximately 0.2 mm to 0.5 mm. These sliding foils 17 are formed on one side either on the riser plate 2 or in each case on the closing flap 3 or 4 or fastened, preferably glued on. The sliding foils 17 enable the closing flaps 3, 4 to be pulled up easily, with little friction, against the riser plate 2, and the same kind of low-friction suspension in the relieved state. The sliding films 17 thus support the parallel or wedge-shaped closing movements of the locking tabs 3, 4 towards the riser plate 2 or away from it.

Bei einstückiger Ausbildung von Ristschild 2 mit den Schließlappen 3, 4 sind an den Verbindungsstellen im unteren Bereich des Ristschildes 2, also am Beginn des Öffnungsspaltes 16, runde oder verrundete Aussparungen 18 vorgesehen, um die Kerbwirkung an diesen Verbindungsstellen zu verringern. Als Spannelement bzw. Spannelemente 11 können ein Stahldraht oder ein Drahtseil verwendet werden, das ggf. noch mit einer Kunststoffhülle mit guten Gleiteigenschaften umgeben sein kann.In the case of a one-piece design of riser plate 2 with the locking tabs 3, 4, round or rounded recesses 18 are provided at the connection points in the lower region of the riser plate 2, that is to say at the beginning of the opening gap 16, in order to reduce the notch effect at these connection points. A steel wire or a wire rope can be used as the tensioning element or tensioning elements 11, which can possibly also be surrounded by a plastic sleeve with good sliding properties.

Das Spannelement 11 kann aber auch aus einem Bowdenzug 19 bestehen, wie dies in Fig. 4 dargestellt ist. Bei dieser Ausführungsform weist die Hülle 20 des Bowdenzuges 19 zwischen den fixen Anlenkpunkten 21a, 21b am Ristschild 2 und an den Schließlappen 3, 4 zusammendrückbare Bereiche 22 auf. Diese zusammendrückbaren Bereiche 22 der Hülle 20 sind bevorzugt als dehnbarer bzw. stauchbarer Faltenbalg ausgebildet. Im übrigen entspricht das Ausführungsbeispiel gemäß Fig. 4 hinsichtlich der übrigen Teile der Schließvorrichtung demjenigen der Fig. 1 bis 3.The clamping element 11 can also consist of a Bowden cable 19, as shown in Fig. 4. In this embodiment, the casing 20 of the Bowden cable 19 has compressible areas 22 between the fixed articulation points 21a, 21b on the riser plate 2 and on the locking tabs 3, 4. These compressible regions 22 of the casing 20 are preferably designed as an expandable or compressible bellows. Otherwise, the exemplary embodiment according to FIG. 4 corresponds to that of FIGS. 1 to 3 with regard to the remaining parts of the locking device.

Bei den bisher beschriebenen Ausführungsbeispielen gemäß den Fig. 1 bis 4 besteht die Teilvorrichtung 2, 3, 4 der Schließvorrichtung entweder insgesamt aus einem einheitlichen, homogenen Bauteil oder aber der Ristschild 2 und die Schließlappen 3, 4 bestehen jeweils für sich gesehen aus je einem einzigen Bauteil.1 to 4, the sub-device 2, 3, 4 of the locking device either consists of a single, homogeneous component or the riser plate 2 and the locking tabs 3, 4 each consist of a single component Component.

Aus Fertigungsgründen oder auch aus Gründen der Materialbeanspruchung der verwendeten Werkstoffe kann auch eine zweiteilige Ausführung des Ristschildes 2 vorgesehen werden, wie nachfolgend anhand der Fig. 5 und 6 beschrieben werden wird.For manufacturing reasons or also for reasons of material stress of the materials used, a two-part design of the riser plate 2 can also be provided, as will be described below with reference to FIGS. 5 and 6.

Die Fig. 5 zeigt wiederum die aus dem Ristschild 2, dem Zentralspannschloß 12 und aus den beiden Schließlappen 3, 4 bestehende zentrale Schließvorrichtung.5 again shows the central locking device consisting of the riser plate 2, the central turnbuckle 12 and the two locking tabs 3, 4.

Auf den Schließlappen 3, 4 sind bei dieser Ausführungsform der Erfindung anstelle von Führungskanälen 13 (Fig. 1 und 2) Führungen in Form von nach oben erhabenen Umlenkelementen bzw. -blöcken 23 vorgesehen. Diese Umlenkelemente bzw. -blöcke 23 besitzen zumindest im Bereich der Führung des bzw. der Spannelements(e) 11 jeweils einen überstehenden oberen Rand 24 (Fig. 5A), so daß eine Führungsnut 25 entsteht, in der das bzw. die Spannelement(e) 11 gleiten kann bzw. können und gegen unbeabsichtigtes Abheben vom Umlenkelement bzw. -block 23 gesichert ist bzw. sind.In this embodiment of the invention, instead of guide channels 13 (FIGS. 1 and 2), guides in the form of upwardly diverting deflection elements or blocks 23 are provided on the locking tabs 3, 4. These deflection elements or blocks 23 each have a protruding upper edge 24 (FIG. 5A), at least in the region of the guide of the tensioning element (s) 11, so that a guide groove 25 is formed. in which the clamping element (s) 11 can slide and can be secured against unintentional lifting off the deflection element or block 23.

Die Umlenkelemente bzw. -blöcke 23 sind auf den Schließlappen 3, 4 an einander gegenüberliegenden Stellen vorgesehen bzw. angebracht und der Ristschild 2 besitzt hier keinerlei Führungskanäle 13 und/oder Umlenkelemente bzw. -blöcke 23. Das Spannelement 11 ist somit im Mittenbereich MB abwechselnd von dem einen zu dem anderen Schließlappen 3 bzw. 4 um die entsprechenden Umlenkelemente bzw. -blöcke 23 geschlungen und kann vom Zentralspann schloß 12 aus gespannt und entspannt werden. Dadurch ergibt sich im Mittenbereich MB der Schließvorrichtung eine Kreuzungsstelle 26 des Spannelements 11, wogegen im oberen Teil 27 und im unteren Teil 28 des Schließbereiches SB die Schließlappen 3, 4-kreuzungsfrei miteinander verbunden sind.The deflection elements or blocks 23 are provided or attached to the closing flaps 3, 4 at mutually opposite locations and the riser plate 2 has no guide channels 13 and / or deflection elements or blocks 23 here. The tensioning element 11 is thus alternating in the center area MB looped from one to the other locking tab 3 or 4 around the corresponding deflection elements or blocks 23 and can be tensioned and relaxed from the central lock 12. This results in a crossing point 26 of the clamping element 11 in the central area MB of the locking device, whereas in the upper part 27 and in the lower part 28 of the locking area SB the locking tabs 3, 4 are connected to one another without crossing.

Das Spannelement 11 ist in Nuten 29 bis 33 über den Ristschild 2 geführt. Dadurch wird einmal eine gute Führung des Spannelements bzw. der Spannelemente 11 in diesen Bereichen gewährleistet und außerdem wird der Druck des gespannten Spannelements 11 auf den Ristschild 2 vermindert und somit die Reibung verringert.The tensioning element 11 is guided in grooves 29 to 33 over the riser plate 2. This ensures good guidance of the tensioning element or the tensioning elements 11 in these areas and also the pressure of the tensioned tensioning element 11 on the riser plate 2 is reduced and thus the friction is reduced.

Wie aus Fig. 5 ersichtlich, kreuzen sich an der Kreuzungsstelle 26 die Nuten 31 und 32. Um ein Aufeinandergleiten des Materials des Spannelements 11 an der Kreuzungsstelle 26 zu vermeiden oder weitestgehend auszuschließen, ist vorteilhaft die eine Nut, hier die Nut 31, tiefer ausgebildet als die andere Nut 32 in der Darstellung gemäß Fig. 5. Vorzugsweise ist die tiefere Nut 31 um wenigstens annähernd der Dicke des Spannelements 11 tiefer verlaufend als die andere Nut 32, so daß der Reibungsdruck der sich kreuzenden Teile des Spannelements 11 vernachlässigbar klein bzw. völlig beseitigt wird.As can be seen from FIG. 5, the grooves 31 and 32 intersect at the intersection 26. In order to avoid or largely preclude the material of the tensioning element 11 from sliding on one another at the intersection 26, the one groove, here the groove 31, is advantageously formed deeper 5. The deeper groove 31 preferably runs deeper than the other groove 32 by at least approximately the thickness of the tensioning element 11, so that the frictional pressure of the intersecting parts of the tensioning element 11 is negligibly small or is completely eliminated.

Zur Abdeckung der Nuten 29 bis 33 des Ristschildes 2 kann auf diesen eine Ristschildabdeckung 34 so aufgebracht werden, daß die Nuten 29 bis 33 als Kanäle für ein reibungsarmes Gleiten des bzw. der Spannelements(e) 11 gebildet oder beibehalten werden. Eine derartige Ristschildabdeckung 34 ist in Fig. 6 dargestellt.Sie ist mit einer Aussparung 35 für den Durchtritt des Zentralspannschlosses 12 versehen. Sie kann auf den Ristschild 2 aufgeklebt und/oder aufgenäht und/oder mittels an der Ristschildabdeckung 34 und/oder am Ristschild 2 vorgesehenen an sich bekannten Rastelementen, beispielsweise Rasthaken, Rastnasen oder dgl. mit dem Ristschild 2 verrastet sein.To cover the grooves 29 to 33 of the riser plate 2, a riser cover 34 can be applied to the latter so that the grooves 29 to 33 are formed or maintained as channels for low-friction sliding of the clamping element (s) 11. Such a riser cover 34 is shown in Fig. 6 It is provided with a recess 35 for the passage of the central turnbuckle 12. It can be glued and / or sewn onto the riser plate 2 and / or can be latched to the riser plate 2 by means of latching elements known per se, for example latching hooks, latching noses or the like provided on the riser plate cover 34 and / or on the riser plate 2.

Ebenso kann auf den Schließlappen 3, 4 je eine, wie in Fig. 6 dargestellt, Lappenabdeckung 36 bzw. 37 vorgesehen sein, um die beispielsweise bogenförmig ausgebildeten Führungen für das Spannelement 11 oder die in Fig. 5A dargestellten Führungsnuten 25 abzudecken. Im letzteren Fall besitzen die Lappenabdeckungen 36, 37 an entsprechenden Stellen Durchbrüche 38, in die die Umlenkelemente bzw. -blöcke 23 eingreifen oder beispielsweise mit dem überstehenden oberen Rand 24 einrasten.Likewise, a flap cover 36 or 37, as shown in FIG. 6, can be provided on the locking tabs 3, 4 in order to cover the, for example, curved guides for the tensioning element 11 or the guide grooves 25 shown in FIG. 5A. In the latter case, the flap covers 36, 37 have openings 38 in corresponding locations, into which the deflection elements or blocks 23 engage or, for example, snap in with the projecting upper edge 24.

Um zu verhindern, daß Verunreinigungen in den Schließbereich der Öffnungsspalte 16 gelangen, kann zwischen der Ristschildabdeckung 34 und den angrenzenden Lappenabdeckungen 36, 37 eine Gleitfolie 17 vorgesehen sein, wie dies anhand der Fig. 1 und 2 beschrieben wurde. Beim Ausführungsbeispiel gemäß den Fig. 6 und 6A bestehen die Ristschildabdeckung 34 und die Lappenabdeckungen 36, 37 aus einem einzigen Bauteil, beispielsweise aus einem Stanz-, Spritz- oder Gußteil. Bei dieser Ausführungsform kann anstelle einer Gleitfolie 17 oder einer entsprechend einseitig angeformten Lasche auch eine mit den benachbarten Bauteilen zusammenhängende Membran 39 vorgesehen, insbesondere mit angeformt, beispielsweise angespritztsein. Diese Membran 39 ist vorzugsweise zusammenschiebbar oder zusammenfaltbar, vornehmlich als Faltenbalg ausgebildet (Fig. 6 A).In order to prevent contaminants from entering the closing area of the opening gaps 16, a sliding film 17 can be provided between the riser plate cover 34 and the adjacent tab covers 36, 37, as was described with reference to FIGS. 1 and 2. In the exemplary embodiment according to FIGS. 6 and 6A, the instep shield cover 34 and the flap covers 36, 37 consist of a single component, for example a stamped, injection-molded or cast part. In this embodiment, instead of a slide film 17 or a correspondingly integrally molded tab, a membrane 39 connected to the adjacent components can also be provided, in particular molded on, for example splashed. This membrane 39 is preferably collapsible or collapsible, primarily in the form of a bellows (FIG. 6 A).

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung kann an jedem Schließlappen 3, 4 im Bereich 40 des Mittelfußes (Fig. 8 und 9) jeweils wenigstens ein Spannband 41 bzw. 42 angebracht sein, das seitlich um den Fuß bis in den Sohlenbereich 43 (Fig. 10) des Schuhes reicht und vorzugsweise bzw. ausschließlich mit dem Sohlenmaterial des Schuhes fest verbunden, beispielsweise verklebt, vernäht oder vernietet ist. Derartige Spannbänder 41, 42 sind in der Fig. 5 gestrichelt angedeutet, wobei an dem einen, vorzugsweise an dem inneren Schließlappen, ein Spannband 41 und am äußeren Schließlappen zwei Spannbänder 42 vorhanden sein können.According to a further advantageous embodiment of the invention, at least one tensioning strap 41 or 42 can be attached to each closing flap 3, 4 in the region 40 of the midfoot (FIGS. 8 and 9), which straps laterally around the foot into the sole region 43 (FIG. 10) of the shoe and is preferably or exclusively firmly connected to the sole material of the shoe, for example glued, sewn or riveted. Such tensioning straps 41, 42 are indicated by dashed lines in FIG. 5, it being possible for one tensioning strap 41 to be present on one, preferably on the inner locking tab, and two tensioning straps 42 on the outer locking tab.

Beim Ausführungsbeispiel gemäß Fig. 7 sind an den beiden Schließlappen 3, 4 jeweils zwei Spannbänder 41 bzw. 42 vorgesehen, die jeweils parallel oder annähernd parallel zueinander verlaufen.In the exemplary embodiment according to FIG. 7, two tensioning straps 41 and 42 are provided on the two locking tabs 3, 4, each of which runs parallel or approximately parallel to one another.

Bei Verwendung von zwei Spannbändern 41 bzw. 42 an dem einen oder anderen Schließlappen 3 bzw. 4 können diese V-förmig zueinander verlaufen. Die entsprechende Ausbildung ist in Fig. 8 verdeutlicht.When using two tensioning straps 41 and 42 on one or the other locking tabs 3 and 4, these can run in a V-shape with respect to one another. The corresponding training is illustrated in Fig. 8.

Vorteilhaft können die Spannbänder 41, 42 durch einen Bügel 44, der die ganze Sohle 45 durchzieht, miteinander verbunden sein (Fig. 7 und 10). Der Ristschild 2, die Schließlappen 3,4 und die Spannbänder 41, 42 einschließlich des Bügels 44, bestehen vorteilhaft aus einem einheitlichen Spritz-, Gieß- oder Formteil.The tensioning straps 41, 42 can advantageously be connected to one another by a bracket 44 which extends through the entire sole 45 (FIGS. 7 and 10). The riser plate 2, the locking tabs 3, 4 and the tensioning straps 41, 42 including the bracket 44 advantageously consist of a uniform injection, casting or molded part.

Die Spannbänder 41, 42 können an der Innenseite 46 des Schaftmaterials 47, oder innerhalb desselben, beispielsweise zwischen dem Außenmaterial und dem Futter des Schaftes, oder außen am Schaft (Fig. 10), angeordnet sein. Bei der Anordnung außen auf dem Schaftmaterial können diese Spannbänder 41, 42 auch unter oder über Besätzen des Schaftmaterials angeordnet sein.The straps 41, 42 can, for example, on the inside 46 of the shaft material 47, or within the same between the outer material and the lining of the shaft, or on the outside of the shaft (Fig. 10). In the arrangement on the outside of the shaft material, these tensioning straps 41, 42 can also be arranged under or over trimmings of the shaft material.

Günstigerweise enden die Spannbänder 41, 42 unterhalb der Brandsohle 48 bzw. verläuft der Bügel 44 unterhalb dieses Schuhteiles.The tensioning straps 41, 42 advantageously end below the insole 48 or the bracket 44 runs below this shoe part.

Durch die mechanische Verbindung der Spannbänder 41, 42 mit den Schließlappen 3, 4 bzw. durch die Verbindung dieser Spannbänder 41, 42 zu einem einheitlichen, die Sohle 45 durchziehenden Bügel 44 wird ein neuartiges Weitenregulierungssystem geschaffen, mit dem die Innenabmessungen des Schuhschaftes genau an das Umfangsmaß des Fußes angepaßt werden können. Der Zentralverschluß 12 erfüllt bei diesen Ausführungsformen der vorliegenden Erfindung also eine Mehrfachfunktion. Er dient nicht nur zur Erzeugung eines gleichmäßig einstellbaren und über den Ristschild 2 sich gleichmäßig verteilenden Schließdruckes, sondern er bedingt gleichzeitig eine erhöhte Stabilität des kompletten Schuhes in dem Sinne, daß die Gefahr von Überdehnungen der empfindlichen Gelenke und Sehnen, vorzugsweise im Schuhaußenbereich, weitestgehend verringert wird.The mechanical connection of the tensioning straps 41, 42 with the locking flaps 3, 4 or the connection of these tensioning straps 41, 42 to form a uniform bracket 44 which runs through the sole 45 creates a novel width adjustment system with which the inner dimensions of the shoe upper exactly match that Circumference of the foot can be adjusted. The central lock 12 thus fulfills a multiple function in these embodiments of the present invention. It not only serves to produce a uniformly adjustable closing pressure which is evenly distributed via the riser plate 2, but at the same time it requires increased stability of the entire shoe in the sense that the risk of overexpansion of the sensitive joints and tendons, preferably in the outer area of the shoe, is largely reduced becomes.

In vorteilhafter Weiterbildung der Erfindung ist, wie in den Fig. 11 bis 13 dargestellt, die Zunge 10 in dem über den Abschlußrand 49 (Fig. 1) des Schließbereiches SB bzw. über die Abschlußränder 50, 51, 52 der Schließlappen 3, 4 und des Ristschildes 2 bzw. der Lappenabdeckungen 36, 37 und der Ristschildabdeckung 34 (Fig. 1, 5, 6, 9) hinausragenden Zungenteil 53 zumindest im Anschluß an diese Abschlußränder 49 bis 52 derart verdickt, daß an diesen Abschlußrändern eine Anschlagwand 54 gebildet ist. Hierdurch wird die Zunge 10 in der richtigen Lage zum Schließbereich gehalten und insbesondere daran gehindert, in den Schuh hineinzurutschen. Dieser Vorteil ist insbesondere dann gegeben, falls die Anschlagwand 54 des verdickten Zungenteils 53 mit dem nicht verdickten Teil der Zunge 10 wenigstens annähernd einen rechten Winkel bildet. Mit Vorteil verjüngt sich der überstehende Zungenteil 53 zu seinem oberen freien Ende hin und schließt dort mit einer Verrundung 55 ab, wie sich aus Fig.12 ergibt. Die seitlichen Randbereiche 56, 57 der Zunge 10 verjüngen sich - wie bekannt - zu den Zungenrändern hin, wie die Fig. 13 zeigt.In an advantageous development of the invention, as shown in FIGS. 11 to 13, the tongue 10 in the over the end edge 49 (Fig. 1) of the closing area SB or over the end edges 50, 51, 52 of the locking tabs 3, 4 and the tongue plate 2 or the flap covers 36, 37 and the tongue plate cover 34 (FIGS. 1, 5, 6, 9) protruding tongue part 53 thickened at least in connection with these end edges 49 to 52 such that a stop wall 54 is formed on these end edges. As a result, the tongue 10 is held in the correct position relative to the closing area and especially prevented from slipping into the shoe. This advantage is particularly given if the stop wall 54 of the thickened tongue part 53 forms at least approximately a right angle with the non-thickened part of the tongue 10. Advantageously, the protruding tongue part 53 tapers towards its upper free end and ends there with a rounding 55, as can be seen from FIG. The lateral edge regions 56, 57 of the tongue 10 taper - as is known - towards the tongue edges, as shown in FIG. 13.

Aufgrund der vorstehend bisher im einzelnen dargestellten vielfältigen Vorteile eignen sich die erfindungsgemäß ausgebildeten Schuhe mit der beschriebenen zentralen Schließvorrichtung nicht nur für normale Straßenschuhe, Sport- und Freizeitschuhe, sondern auch für Rehabilitationsschuhe, also für Schuhe, bei denen die beschriebenen Vorteile in der Bedienung und in der Festigkeit des zentralen Schließsystems besonders wichtig sind.Because of the diverse advantages described above so far, the shoes designed according to the invention with the described central locking device are suitable not only for normal street shoes, sports and leisure shoes, but also for rehabilitation shoes, i.e. for shoes in which the described advantages in operation and in the strength of the central locking system are particularly important.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist die Verbindung der Schließlappen 3, 4 mit dem Ende 5 des Ristschildes 2 möglichst leicht beweglich ausgeführt. Dies kann beispielsweise durch die früher erwähnten Scharniere oder Gelenke, insbesondere Federgelenke, erfolgen. Gemäß einem in der Fig. 14 dargestellten Ausführungsbeispiel erfolgt die Verbindung dieser Teile der Zentralschließvorrichtung im Verbindungsbereich 58 über gewellte oder gefaltete Membranen 39.1, die auch jeweils die Fortsetzung einer zwischen dem Ristschild 2 und den Schließlappen 3, 4 vorgesehenen, in der in Fig. 14 im linken Teil der Schließvorrichtung dargestellten Membran 39.2 sein können und bis oder nahezu bis an den Endrand 5.1 des Endes des Ristschildes 2 reichen.According to a further advantageous embodiment of the invention, the connection of the locking tabs 3, 4 to the end 5 of the riser plate 2 is designed to be as easily movable as possible. This can be done, for example, by the hinges or joints mentioned above, in particular spring joints. According to an exemplary embodiment shown in FIG. 14, the connection of these parts of the central locking device in the connection area 58 takes place via corrugated or folded membranes 39.1, each of which is also the continuation of one provided between the riser plate 2 and the locking tabs 3, 4 in FIG. 14 can be membrane 39.2 shown in the left part of the closing device and extend up to or almost up to the end edge 5.1 of the end of the riser plate 2.

In entsprechender Weise können gemäß Fig. 15 derartig gewellte oder gefaltete Membranen 39.11 auch im vorderen Verbindungsbereich 58.1 der Ristschildabdeckung 34 und der Lappenabdeckungen 36, 37 vorgesehen sein, wenn eine derartige Ristschildabdeckung 34 vorgesehen ist. Um eine möglichst ungehinderte Beweglichkeit dieser Teile zu gewährleisten, kann gegebenenfalls eine Verbindung der Schließlappen 3, 4 mit dem Ristschild 2 ganz entfallen.15, corrugated or folded membranes 39.11 of this type can also be provided in the front connection area 58.1 of the instep shield cover 34 and the flap covers 36, 37 if such an instep shield cover 34 is provided. In order to ensure that these parts move as freely as possible, a connection of the locking tabs 3, 4 to the riser plate 2 may be omitted entirely.

Vorzugsweise verläuft die gefaltete Membran 39.1 bzw. 39.11 in Richtung von einer realen oder gedachten Verbindungsstelle 59 zwischen dem Ristschild 2 und den Schließlappen 3, 4, wie in Fig. 14 dargestellt ist, bzw. von der Verbindungsstelle 59.1 zwischen der Ristschildabdeckung 34 und den Lappenabdeckungen 36, 37 - entsprechend der Darstellung gemäß Fig. 15 - aus zum Endrand 5.1 des Endes 5 des Ristschildes 2 gemäß Fig. 14 bzw. zum Endrand 5.11 des Endes 34.1 der Ristschildabdeckung 34 gemäß Fig. 15.The folded membrane 39.1 or 39.11 preferably runs in the direction of a real or imaginary connection point 59 between the riser plate 2 and the locking tabs 3, 4, as shown in FIG. 14, or from the connection point 59.1 between the riser plate cover 34 and the tab covers 36, 37 - corresponding to the representation according to FIG. 15 - from to the end edge 5.1 of the end 5 of the instep shield 2 according to FIG. 14 or to the end edge 5.11 of the end 34.1 of the instep shield cover 34 according to FIG. 15.

Zur Erhöhung der Biegsamkeit der genannten Verbindungsbereiche 58 bzw. 58.1 des Ristschildes 2 und gegebenenfalls der Ristschildabdeckung 34 sind vorzugsweise deren Enden 5.1 bzw. 34.1 durch geeignete Maßnahmen, beispielsweise durch geringe Materialstärken und/oder durch zusätzliche Querrillen oder Querwellen 15.1 (siehe Fig. 14 und 15), insbesondere in Form einer gewellten oder gefalteten Membran, hochelastisch nachgiebig ausgebildet.In order to increase the flexibility of the connection areas 58 and 58.1 of the riser plate 2 and, if necessary, the riser plate cover 34, their ends 5.1 and 34.1 are preferably provided by suitable measures, for example by means of low material thicknesses and / or by additional transverse grooves or transverse shafts 15.1 (see FIGS. 14 and 15), in particular in the form of a corrugated or folded membrane, highly resilient.

Dadurch werden Druckstellen durch die genannten End- bzw. Verbindungsbereiche 58 bzw. 58.1 auf den Vorderfuß vermieden Die Querrillen 15.1 können dabei die Falten der Membranen 39.1 bzw. 39.11 überlagern.As a result, pressure points through the mentioned end or connection areas 58 or 58.1 on the forefoot are avoided. The transverse grooves 15.1 can overlap the folds of the membranes 39.1 and 39.11.

Die Fig. 15 zeigt ferner mit der Positionsziffer 35 eine Aussparung für den Durchtritt des Zentralspannschlosses 12.15 also shows, with the item number 35, a recess for the passage of the central turnbuckle 12.

Schließlich sind in den Lappenabdeckungen 36, 37 an entsprechenden Stellen Durchbrüche 38 vorgesehen, in die die Umlenkelemente bzw. -blöcke 23 eingreifen oder beispielsweise mit einem überstehenden oberen Rand einrasten. Mit den Bezugsziffern 39 sind vorzugsweise zusammenschiebbare oder zusammenfaltbare Membranen bezeichnet.Finally, openings 38 are provided in the tab covers 36, 37 at corresponding points, into which the deflection elements or blocks 23 engage or, for example, snap in with a projecting upper edge. Reference numbers 39 preferably denote collapsible or collapsible membranes.

Bei Verwendung von Spannbändern 41, 42 können diese, wie in Fig. 7 dargestellt, an die Schließlappen 3, 4 bei deren Herstellung unmittelbar angeformt sein. Sie können aber auch in ansonsten geeigneter Weise an diesen befestigt sein, beispielsweise durch Nähen, Nieten, Kleben oder dergleichen. In diesem Falle sind zweckmäßig die Umlenkelemente bzw. -blöcke 23 auf den Schließlappen 3, 4 so angeordnet, daß sie mit den Spannbändern 41, 42 fluchten, wie in Fig. 16 dargestellt ist. Hierdurch wird der Zug des Spannelements 11 auf die Spannbänder 41, 42 unmittelbar übertragen.When tensioning straps 41, 42 are used, they can, as shown in FIG. 7, be molded directly onto the locking tabs 3, 4 during their manufacture. But they can also be attached to them in an otherwise suitable manner, for example by sewing, riveting, gluing or the like. In this case, the deflection elements or blocks 23 are expediently arranged on the locking tabs 3, 4 in such a way that they are aligned with the tensioning straps 41, 42, as shown in FIG. 16. As a result, the tension of the tensioning element 11 is transmitted directly to the tensioning straps 41, 42.

Bei einer anderen Ausführungsform der Erfindung können gemäß Fig. 17 die Spannbänder 41, 42 von den Schließlappen 3, 4 getrennt sein, wobei dann die Umlenkelemente bzw. -blöcke 23 jeweils am Ende 41.1 bzw. 42.1 je eines Spannbandes 41, 42 vorgesehen sind. Anstelle der bisher beschriebenen Umlenkelemente bzw. -blöcke 23 können auch Umlenkelemente bzw. -blöcke geeigneter anderer Form und Konstruktion, insbesondere in Form von Schlaufen, Löchern, Ösen, Ghilly-Ösen oder dergleichen vorgesehen sein. Die Umlenkelemente bzw. -blöcke 23 können an den Spannbändern 41, 42 angeformt, angeklipst, angeklebt, angenietet oder in anderer Weise befestigt sein.In another embodiment of the invention, the tensioning straps 41, 42 can be separated from the locking tabs 3, 4, as shown in FIG. 17, the deflection elements or blocks 23 then being provided at the ends 41.1 and 42.1 of a tensioning strap 41, 42 each. Instead of the previously described deflection elements or blocks 23, deflection elements or blocks of a suitable other shape and construction, in particular in the form of loops, holes, eyelets, ghilly eyelets or the like, can also be provided. The deflection elements or blocks 23 can be formed on the tensioning straps 41, 42, clipped on, glued, riveted or fastened in some other way.

Nach einer weiteren Ausführungsform der Erfindung können die Spannbänder 41, 42 in Schlitze 60 der Schließlappen 3, 4 eingeführt sein, wobei sie dort fest, vorzugsweise aber verschiebbar angeordnet sein können, wie in den Fig. 18 und 19 dargestellt ist. Die Enden 41.1 bzw. 42.1 der Spannbänder 41, 42 sind hierbei von unten, die Schließlappen 3, 4 übergreifend, durch Schlitze 60 hindurchgesteckt. An die jeweils nicht in die Schlitze 60 hineinreichenden Spannbandabschnitte ist jeweils ein Umlenkelement bzw. -block 23, der, wie vorstehend beschrieben, auch als andersartig ausgestaltetes Umlenkelement ausgebildet sein kann, angeformt, angeklebt, angenietet oder in anderer Weise befestigt. Jedes Umlenkelement 23 bzw. jeder Umlenkblock besitzt vorteilhaft am oberen Ende eine Anschlagkante 61. Diese Anschlagkante 61 ist zweckmäßig zunächst in geöffnetem Zustand der Schließvorrichtung von der oberen Schlitzkante 62 um einen bestimmten Betrag von beispielsweise 5 mm bis 20 mm entfernt. Dadurch tritt beim Schließvorgang durch das Spannelement 11 bei entsprechendem Drehen des Zentralspannschlosses 12 zunächst eine Spannung der Spannbänder 41, 42 ein, wodurch der Fuß im Schuh festgehalten wird. Erst bei weiterem Anziehen des Spannelements 11 schlägt die Anschlagkante 61 an der oberen Schlitzkante 62 an und bringt dadurch die Schließlappen 3,4 in die Schließstellung. Hierdurch wird ein guter Sitz des Fußes im Schuh gewährleistet. Entsprechend öffnet bei der Entriegelung des Zentralspannschlosses 12 zuerst die Schließvorrichtung, wobei dann durch weitere Entspannung der Spannbänder 41, 42 die Lockerung des Fußes im Schuh erfolgt.According to a further embodiment of the invention, the tensioning straps 41, 42 can be inserted into slots 60 of the locking flaps 3, 4, where they can be arranged there firmly, but preferably displaceably, as in FIGS. 18 and 19 is shown. The ends 41.1 and 42.1 of the tensioning straps 41, 42 are inserted through slots 60 from below, overlapping the locking tabs 3, 4. A deflecting element or block 23, which, as described above, can also be designed as a differently designed deflecting element, is molded, glued, riveted or fastened in any other way onto the tensioning band sections which do not extend into the slots 60. Each deflecting element 23 or each deflecting block advantageously has a stop edge 61 at the upper end. This stop edge 61 is expediently first removed from the upper slot edge 62 by a certain amount, for example 5 mm to 20 mm, when the closing device is open. As a result, when the central tensioning lock 12 is rotated appropriately, the tensioning straps 41, 42 first occur during the closing operation through the tensioning element 11, as a result of which the foot is held in the shoe. Only when the tensioning element 11 is tightened further does the abutment edge 61 abut the upper slot edge 62 and thereby bring the locking tabs 3, 4 into the closed position. This ensures a good fit of the foot in the shoe. Accordingly, when the central turnbuckle 12 is unlocked, the locking device first opens, and then the foot is loosened in the shoe by further relaxation of the tensioning straps 41, 42.

Im Sinne einer gleichmäßigeren Druckverteilung können die Umlenkelemente bzw. -blöcke 23 an den Spannbändern 41, 42 durch einen Steg 23a miteinander verbunden sein, wie dies in Fig. 20 schematisch gestrichelt dargestellt ist. Damit stößt die gemeinsame Anschlagkante 61 (siehe hierzu auch die Fig.18 und 19) breitflächig an dem jeweiligen Schließlappen 3 bzw. 4 an.In the sense of a more uniform pressure distribution, the deflection elements or blocks 23 on the tensioning straps 41, 42 can be connected to one another by a web 23a, as is shown schematically in dashed lines in FIG. 20. The common stop edge 61 (see also FIGS. 18 and 19) thus abuts the respective locking tabs 3 and 4 over a wide area.

Um mit Spannbändern 41,42 möglichst einheitlicher Größe den Bereich der Weitenregulierung noch vergrößern zu können, können die Spannbänder 41, 42 an deren den Schließlappen 3, 4 benachbarten Endbereichen mit Rastelementen 41.2 bzw. 42.2 bekannter Art, wie Loch-Stiftverbindungen, Schraubenverbindungen oder dgl., versehen sein, die eine Befestigung der Umlenkelemente bzw. -blöcke 23 bzw. der anders ausgestalteten Umlenkelemente an unterschiedlichen Stellen an den Endbereichen der Spannbänder 41, 42 ermöglichen. Derartige Rastelemente 41.2 bzw. 42.2 sind in Fig. 19 schematisch dargestellt.The area of the width adjustment is to be as uniform as possible with straps 41, 42 To be able to enlarge, the tensioning straps 41, 42 can be provided at their end regions adjacent to the locking tabs 3, 4 with latching elements 41.2 or 42.2 of a known type, such as pin-hole connections, screw connections or the like, which fasten the deflection elements or allow blocks 23 or the differently configured deflection elements at different locations on the end regions of the tensioning straps 41, 42. Such locking elements 41.2 and 42.2 are shown schematically in FIG. 19.

Gemäß einer weiteren, in Fig. 20 dargestellten Ausgestaltung der Erfindung sind bei Anwendung von zwei oder mehr Spannbändern 41, 42 vorteilhaft zwischen den benachbarten Spannbändern 41, 42 ein oder mehrere seitliche Verbindungsstege 63 vorgesehen. Auch können die Spannbänder 41, 42 auf einer oder auf jeder Seite der Schließvorrichtung jeweils mit einem Bügel 44 miteinander und benachbarte Bügel 44 durch einen weiteren Befestigungssteg 64 ebenfalls miteinander verbunden sein, wie sich ebenfalls aus Fig. 20 ergibt. Hierdurch ist ein leichter Einbau dieses aus den Spannbändern 41, 42, den Verbindungsstegen 63, 64, den Bügeln 44 und dem Ristschild 2 bestehenden kompletten Käfigs bzw. - bei gesondertem Ristschild 2 - des dann vorhandenen Teilkäfigs gewährleistet. Auch bei der Ausbildung als Teilkäfig gewährleisten die Verbindungsstege 63 und die weiteren Stege 44 bzw. 64 eine leichte Positionierung der Spannbänder 41, 42 an dem fertigen Schuhschaft, weil der erwähnte komplette Käfig bzw. Teilkäfig leicht auf dem Schuhschaft aufgeschoben und aufgrund der Materialelastizität dort sehr einfach fixiert werden kannAccording to a further embodiment of the invention shown in FIG. 20, when two or more tensioning straps 41, 42 are used, one or more lateral connecting webs 63 are advantageously provided between the adjacent tensioning straps 41, 42. The tensioning straps 41, 42 can also be connected to each other on one or on each side of the locking device with a bracket 44 and adjacent brackets 44 can also be connected to one another by a further fastening web 64, as can also be seen in FIG. 20. This ensures easy installation of the complete cage consisting of the tensioning straps 41, 42, the connecting webs 63, 64, the brackets 44 and the riser plate 2 or - in the case of a separate riser plate 2 - the partial cage then present. Even in the case of training as a partial cage, the connecting webs 63 and the further webs 44 and 64 ensure easy positioning of the tensioning straps 41, 42 on the finished shoe upper, because the aforementioned complete cage or partial cage is easily pushed onto the shoe upper and very much there due to the material elasticity can be easily fixed

Eine weitere vorteilhafte Ausführungsform der Erfindung besteht darin, daß gemäß Fig. 21 bei nicht mit den Schließlappen 3, 4 verbundenen Spannbändern 41, 42 (zeichnerisch sind nur die Spannbänder 42 dargestellt) an den Spannbändern 41,42 Umlenkelemente bzw. -blöcke 23 und an den Seitenbereichen des Ristschildes 2 weitere Umlenkelemente bzw. -blöcke 23 vorgesehen sind. Ergänzend hierzu sind an den Schließlappen 3, 4 jeweils weitere Umlenkelemente bzw. -blöcke 23 vorgesehen, die zwischen den Umlenkelementen bzw. -blöcken 23 an den Spannbändern 41, 42 und am Ristschild 2 vorgesehen sind. Dadurch wird auch bei nicht mit den Schließlappen 3, 4 verbundenen Spannbändern 41, 42 eine Mitnahme der Schließlappen 3, 4 beim Schließen des Zentralverschlusses 12 in Schließrichtung bewirkt.A further advantageous embodiment of the invention consists in that, according to FIG. 21, with tensioning straps 41, 42 not connected to the locking flaps 3, 4 (only tensioning straps 42 are shown in the drawing) on the tensioning straps 41, 42 deflection elements or blocks 23 and the side areas of the Instep plate 2 further deflection elements or blocks 23 are provided. In addition to this, further deflection elements or blocks 23 are provided on the locking tabs 3, 4, which are provided between the deflection elements or blocks 23 on the tensioning straps 41, 42 and on the riser plate 2. As a result, even when the straps 41, 42 are not connected to the locking tabs 3, 4, the locking tabs 3, 4 are entrained in the closing direction when the central lock 12 is closed.

Wie die Fig. 22 bis 25 ausschnittsweise zeigen, können die Umlenkelemente bzw. -blöcke 23 oder die anderweitig ausgestalteten Umlenkelemente am Ristschild 2 und an den Schließlappen 3, 4 - gegebenenfalls auch an den Spannbändern (hier nicht dargestellt) außen (siehe Fig. 22) oder innen (siehe Fig. 23) vorgesehen sein. Die Umlenkelemente bzw. -blöcke 23 oder anderweitig ausgestalteten Umlenkelemente können aber auch in Schlitzen 65 jeweils am Rande des Ristschildes 2, der Schließlappen 3, 4 und/oder der Spannbänder (Fig. 24) oder nur in Schlitzen 65 an den Schließlappen 3, 4 und gegebenenfalls an den Spannbändern (Fig. 25) angeordnet sein. Insbesondere können die Umlenkelemente bzw. -blöcke 23 in diesen Fällen als Halbkreisscheibe 66 oder auch als Stift, Bolzen oder dergleichen ausgebildet sein (vgl. Fig. 24 und 25).22 to 25 show sections of the deflection elements or blocks 23 or the otherwise configured deflection elements on the riser plate 2 and on the closing flaps 3, 4 — optionally also on the tensioning straps (not shown here) on the outside (see FIG. 22 ) or inside (see Fig. 23). The deflecting elements or blocks 23 or otherwise configured deflecting elements can, however, also in slots 65 in each case on the edge of the riser plate 2, the locking tabs 3, 4 and / or the tensioning straps (FIG. 24) or only in slots 65 on the locking tab 3, 4 and if necessary be arranged on the tensioning straps (Fig. 25). In particular, the deflection elements or blocks 23 can in this case be designed as a semicircular disk 66 or also as a pin, bolt or the like (cf. FIGS. 24 and 25).

Wie die Fig. 25 auch verdeutlicht, sind bei dieser Ausführungsform der Erfindung die Umlenkelemente bzw. -blöcke 23 oder die anderweitig ausgestalteten Umlenkelemente am Ristschild 2 außen und nur an den angrenzenden Schließlappen 3, 4 in Schlitzen 65 vorgesehen.As is also shown in FIG. 25, in this embodiment of the invention the deflection elements or blocks 23 or the otherwise configured deflection elements are provided on the outside of the riser plate 2 and only on the adjacent locking tabs 3, 4 in slots 65.

Beim Verlauf der Spannbänder 41, 42 außen über das Schaftmaterial 47 des Schuhes (Fig. 10) kann als Material für die Spannbänder 41, 42 ein glasklar durchsichtiges oder trüb durchscheinendes Material, das auch farbig durchsichtig sein kann, verwendet werden. Hierdurch ist es möglich, eventuelle Verunreinigungen unter den Spannbändern 41, 42 schnell zu erkennen und zu entfernen. Bei dieser Ausgestaltung der Erfindung ist auch das darunterliegende Schaftmaterial 47 sichtbar, wodurch die ästhetische Wirkung des Schuhes erhalten und gegebenenfalls auch warenzeichenmäßige Kennzeichnungen an einem derartigen Schuh sichtbar bleiben.In the course of the tensioning straps 41, 42 on the outside of the upper material 47 of the shoe (FIG. 10), a material which is clear as glass or cloudy and which can also be transparent in color can be used as the material for the tensioning straps 41, 42. be used. This makes it possible to quickly identify and remove any contamination under the tensioning straps 41, 42. In this embodiment of the invention, the shaft material 47 underneath is also visible, as a result of which the aesthetic effect of the shoe is retained and, if appropriate, trademark markings on such a shoe remain visible.

Gemäß der in Fig. 26 dargestellten Weiterbildung der Erfindung sind die Führungskanäle 13 erfindungsgemäß dadurch gebildet, daß die Schließlappen 3, 4 an den dem Ristschild 2 zugewandten Schmalseiten 3.1, 4.1 jeweils zumindest eine sich nach innen erstreckende langschlitzförmige Nut 101 aufweisen. In die Nuten 101 sind beiderseits des Ristschildes 2 zumindest je ein Umlenkelement bzw. -block 23 zur Aufnahme der beim Spannen des Spannelements 11 auftretenden Zugkräfte eingesteckt und in den Nuten 101 fest angeordnet, wobei das Spannelement 11 jeweils eine bogenförmige Gleitfläche der Umlenkelemente bzw. -blöcke 23 umschlingt.According to the development of the invention shown in FIG. 26, the guide channels 13 are formed according to the invention in that the locking tabs 3, 4 each have at least one inwardly extending slot 101 groove 101 on the narrow sides 3.1, 4.1 facing the riser plate 2. At least one deflecting element or block 23 for receiving the tensile forces occurring during tensioning of the tensioning element 11 are inserted into the grooves 101 on both sides of the riser plate 2 and fixedly arranged in the grooves 101, the tensioning element 11 each having an arcuate sliding surface of the deflection elements or blocks 23 wraps around.

Die Breite 101.1 der Nuten 101 ist gleich oder nur etwas größer als die Dicke der Umlenkelemente bzw. -blöcke 23. In diese Nuten 101 ist je Schließlappen 3, 4 zumindest je ein Umlenkelement bzw. -block 23 eingesetzt und befestigt, beispielsweise eingeklebt und/oder eingeschweißt. An der Außenkante 23.1 der Umlenkelemente bzw. -blöcke 23 ist jeweils eine als Gleitfläche dienende Führungsnut 25 (Fig. 27A) vorgesehen, in der das Spannelement 11 zu liegen kommt. Die Umlenkelemente bzw. -blöcke 23 bestehen aus einem gegenüber dem Material des Ristschildes 2 und dem der Schließlappen 3, 4 härteren und sehr abriebfesten Material, wie beispielsweise Polyamid, Polyäthylen, Polyurethan oder dgl. mit einer Härte von vorzugsweise größer als 75 Shore A. Durch die getrennte Herstellung und Befestigung der Umlenkelemente bzw. -blöcke 23 einerseits und des Ristschildes 2 sowie der Schließlappen 3, 4 andererseits ist die zur optimalen Lösung der gestellten Aufgabe entsprechende unterschiedliche Materialwahl für diese Bauteile ohne weiteres möglich. Das Material des Ristschildes 2 und das der Schließlappen 3, 4 kann daher bevorzugt unter dem Gesichtspunkt der Elastizität bzw. Federelastizität und weniger unter dem der Abriebfestigkeit ausgewählt werden.The width 101.1 of the grooves 101 is the same or only slightly larger than the thickness of the deflection elements or blocks 23. In each of the locking tabs 3, 4, at least one deflection element or block 23 is inserted and fastened, for example glued and / or welded in. On the outer edge 23.1 of the deflection elements or blocks 23, a guide groove 25 (FIG. 27A) serving as a sliding surface is provided, in which the tensioning element 11 comes to rest. The deflection elements or blocks 23 consist of a material which is harder and more abrasion-resistant than the material of the riser plate 2 and that of the locking flaps 3, 4, such as polyamide, polyethylene, polyurethane or the like, with a hardness of preferably greater than 75 Shore A. Due to the separate manufacture and attachment of the deflection elements or blocks 23 on the one hand and the riser plate 2 and the Closing flaps 3, 4 on the other hand, the different choice of material for these components, which is appropriate for the optimal solution of the task, is readily possible. The material of the instep plate 2 and that of the closing flap 3, 4 can therefore preferably be selected from the point of view of elasticity or spring elasticity and less from that of abrasion resistance.

Die Führungskanäle 13 verlaufen in der Ebene des Ristschildes 2 bzw. der Schließlappen 3, 4 und sind dabei derart gegeneinander versetzt angeordnet, daß das Spannelement 11 wenigstens annähernd S-förmig oder schlangenlinienförmig verläuft. Hierdurch ist gewährleistet, daß das Spannelement 11 beim Verspannen über den gesamten Schließbereich SB auch nicht in Teilbereichen, wie dem Mittenbereich MB, eingeklemmt wird. Die Anordnung der Führungskanäle 13 ist so gewählt, daß bei an den Ristschild 2 herangezogenen Schließlappen 3, 4 jeweils eine Öffnung 14 eines Führungskanals 13 der Öffnung 14 des gegenüberliegenden Führungskanales 13 deckungsgleich gegenübersteht.The guide channels 13 run in the plane of the riser plate 2 or the closing flaps 3, 4 and are arranged offset with respect to one another in such a way that the tensioning element 11 extends at least approximately in an S-shape or in a serpentine manner. This ensures that the tensioning element 11 is not clamped in partial areas, such as the central area MB, during tensioning over the entire closing area SB. The arrangement of the guide channels 13 is selected such that in the case of closing flaps 3, 4 used on the riser plate 2, an opening 14 of a guide channel 13 is congruent with the opening 14 of the opposite guide channel 13.

Im dargestellten Ausführungsbeispiel besitzt jeder Schließlappen 3, 4 zwei Führungskanäle 13 und der Ristschild 2 an jeder Seite einen Führungskanal 13. Insbesondere bei hochschäftigen Sport-, Freizeit- oder Rehabilitationsschuhen können auch mehr Führungskanäle 13 sowohl in den Schließlappen 3, 4 als auch im Ristschild 2 angeordnet sein.In the exemplary embodiment shown, each locking flap 3, 4 has two guide channels 13 and the riser plate 2 has a guide channel 13 on each side. In particular in the case of high-strength sports, leisure or rehabilitation shoes, more guide channels 13 can also be provided both in the closing flaps 3, 4 and in the riser plate 2 be arranged.

Der Radius R der Führungskanäle 13 ist möglichst groß gewählt und beträgt - je nach Schuhgröße - mindestens etwa 7 mm bis zu etwa 15 mm. Der Kreisbogen eines Führungskanals 13 erstreckt sich über einen Öffnungswinkel β von etwa 100° bis 180°The radius R of the guide channels 13 is chosen to be as large as possible and, depending on the shoe size, is at least about 7 mm up to about 15 mm. The circular arc of a guide channel 13 extends over an opening angle β of approximately 100 ° to 180 °

Die Führungskanäle 13 können aber auch aus einem durch eine gebogene Hülse gebildeten Umlenkelement aus einem Material mit geringem Reibungskoeffizienten bestehen. Als Materialien hierfür eignen sich beispielsweise Polyamid, Polyimid, Polyester, Polyurethan oder auch Metalle mit guten Gleiteigenschaften, wie sie bei Gleitlagern zum Einsatz kommen. Insbesondere können die gebogenen Hülsen aus Edelstahl, Titan oder Bronce bestehen.However, the guide channels 13 can also consist of a deflection element made of a material and formed by a curved sleeve exist with low coefficient of friction. Suitable materials for this are, for example, polyamide, polyimide, polyester, polyurethane or even metals with good sliding properties, such as are used in plain bearings. In particular, the curved sleeves can be made of stainless steel, titanium or bronze.

Das Zentralspannschloß 12 ist vorzugsweise so ausgebildet, daß das Spannelement 11 von beiden Seiten her feinstufig, annähernd stufenlos oder sogar stufenlos gespannt und gelockert werden kann. Mit Vorteil ist das Zentralspannschloß 12 als Drehverschluß ausgebildet und im Ristschild 2 drehbar gelagert.The central turnbuckle 12 is preferably designed so that the tensioning element 11 can be tightened and loosened from both sides in fine steps, approximately continuously or even continuously. The central turnbuckle 12 is advantageously designed as a rotary lock and rotatably mounted in the riser plate 2.

Jeder Schließlappen 3, 4 besitzt wenigstens zwei Führungskanäle 13 bzw. Umlenkelemente bzw. -blöcke 23, die im Abstand der beiden Öffnungen 14 des auf den Ristschild 2 gegenüber angebrachten Führungskanals 13 bzw. Umlenkelements bzw. -blocks 23 angeordnet sind, so daß der Führungskanal 13 des Ristschildes 2 auf Lücke gesetzt ist. Beim Ausführungsbeispiel ist ein einziges Spannelement 11 vorgesehen, das vom Zentralspannschloß 12 über den Schließlappen 3 zum Ristschild 2, zurück zum Schließlappen 3 und dann durch das Ende 5 des Ristschildes 2 zum anderen Schließlappen 4 und im gleichem Verlauf zurück zum Zentralspannschloß 12 gezogen ist. Grundsätzlich ist es auch möglich, zwei Zentralspannschlösser zu verwenden, mit denen je ein Spannelement zwischen dem Schließlappen 3 und dem Ristschild 2 einerseits und dem Schließlappen 4 und dem Ristschild 2 andererseits bedient wird.Each locking tab 3, 4 has at least two guide channels 13 or deflecting elements or blocks 23, which are arranged at a distance from the two openings 14 of the guide channel 13 or deflecting elements or blocks 23 arranged opposite on the riser plate 2, so that the guide channel 13 of the riser plate 2 is set to a gap. In the embodiment, a single clamping element 11 is provided, which is pulled from the central turnbuckle 12 via the locking tab 3 to the riser plate 2, back to the locking tab 3 and then through the end 5 of the riser plate 2 to the other locking tab 4 and in the same way back to the central turnbuckle 12. In principle, it is also possible to use two central turnbuckles, each of which is used to operate one clamping element between the locking tab 3 and the riser plate 2 on the one hand and the locking tab 4 and the riser plate 2 on the other hand.

Wesentliche Vorteile der bisher beschriebenen Sport-, Freizeit- oder Rehabilitationsschuhe mit der erfindungsgemäßen zentralen Schließvorrichtung gegenüber bekannten Schnürverschlüssen, wie dem eingangs geschilderten Doppelschnürverschluß, sind in der Sicherheit und in der einfachen Herstellbarkeit und günstigen Materialwahl der Schließvorrichtung zu sehen. Auch ist eine Einhandbedienung des Zentralspannschlosses möglich, was für Sportarten von Behinderten ebenso förderlich ist, wie die Anwendung der erfindungsgemäßen Schließvorrichtung bei Rehabilitationsschuhen. Durch den Wegfall freihängender Schnürsenkel ist auch die Unfallgefahr deutlich herabgesetzt. Wichtig ist die stufenlose oder wenigstens annähernd stufenlose Regulierung des Schließdrucks über den gesamten Schließbereich. Insbesondere ermöglicht das Zentralspann schloß eine schnelle und unkomplizierte Nachregulierung des Schließdruckes im Sinne einer Schließdruckerhöhung oder -erniedrigung.Significant advantages of the sports, leisure or rehabilitation shoes described so far with the central locking device according to the invention compared to known laces, such as the double laces described at the beginning, are to be seen in the safety and in the simple manufacture and inexpensive choice of material for the locking device. One-handed operation of the central turnbuckle is also possible, which is just as beneficial for sports for the disabled as the use of the locking device according to the invention in rehabilitation shoes. By eliminating free-hanging laces, the risk of accidents is also significantly reduced. It is important to continuously or at least approximately continuously regulate the closing pressure over the entire closing area. In particular, the central clamping lock enabled a quick and uncomplicated readjustment of the closing pressure in the sense of an increase or decrease in the closing pressure.

Bei den Ausführungsbeispielen gemäß den Fig. 26 bis 31 bestehen die Teile 2, 3, 4 der Schließvorrichtung entweder insgesamt aus einem einheitlichen, homogenen Bauteil oder aber der Ristschild 2 und die Schließlappen 3, 4 bestehen jeweils für sich gesehen aus je einem einzigen Bauteil, die durch geeignete Mittel funktionsmäßig miteinander verbunden sind.26 to 31, the parts 2, 3, 4 of the locking device either consist of a uniform, homogeneous component or the riser plate 2 and the locking tabs 3, 4 each consist of a single component, which are functionally connected to one another by suitable means.

Im Ausführungsbeispiel gemäß Fig. 29 sind die Umlenkelemente bzw. -blöcke 23 an einander gegenüberliegenden Stellen ausschließlich in den Schließlappen 3, 4 angebracht, so daß der Ristschild 2 hier keinerlei Umlenkelemente bzw. -blöcke 23 besitzt. Das Spannelement 11 ist somit im Mittenbereich MB abwechselnd von dem einen zu dem anderen Schließlappen 3 bzw. 4 um die entsprechenden Umlenkelemente bzw. -blöcke 23 geschlungen und kann vom Zentralspannschloß 12 aus gespannt und entspannt werden. Dadurch ergibt sich im Mittenbereich MB der Schließvorrichtung eine Kreuzungsstelle 26 des Spannelements 11, wogegen im oberen Teil 27 und im unteren Teil 28 des Schließbereiches SB die Schließlappen 3, 4 kreuzungsfrei miteinander verbunden sind.In the exemplary embodiment according to FIG. 29, the deflecting elements or blocks 23 are attached at mutually opposite positions exclusively in the locking tabs 3, 4, so that the riser plate 2 has no deflecting elements or blocks 23 here. The tensioning element 11 is thus alternately wrapped around the corresponding deflection elements or blocks 23 in the central area MB from the one to the other locking flap 3 and 4 and can be tensioned and relaxed from the central tensioning lock 12. This results in a crossing point 26 of the clamping element 11 in the central area MB of the locking device, whereas in the upper part 27 and in the lower part 28 of the locking area SB the locking tabs 3, 4 are connected to one another without crossing.

Um zu verhindern, daß Verunreinigungen in den Schließbereich der Öffnungsspalte 16 gelangen, kann zwischen dem Ristschild 2 und den angrenzenden Schließlappen 3, 4 eine Gleitfolie 17 vorgesehen sein, wie dies in Fig. 1 dargestellt ist und bereits beschrieben wurde.In order to prevent contaminants from entering the closing area of the opening gaps 16, a sliding film 17 can be provided between the riser plate 2 and the adjacent closing tabs 3, 4, as is shown in FIG. 1 and has already been described.

In den Fig. 26 und 29 ist in der Zeichnung jeweils auf der rechten Seite anstelle einer Gleitfolie 17 - oder zusätzlich zu dieser - ein Abdeckblatt 17.1 an der freien Seitenkante des Ristschildes 2 angebracht, insbesondere dort direkt angeformt, das in einen gemeinsamen oder in mehrere einzelne taschenförmige(n) Schlitz(e) 102 des Schließlappens 4 eingreift und beim Spannen der Schließvorrichtung über das Zentralspannschloß 12 in diese(n) entsprechend tief eintaucht. In diesem oder in diesen Schlitz(en) 102 sind die Umlenkelemente bzw. -blöcke 23 an den entsprechenden Stellen, bevorzugt mit ihrer Vorderseite 23.2 vertieft, in den Schlitz bzw. in die Schlitze 102 eingesetzt und dort befestigt. Damit kann das Abdeckblatt 17.1 in den so gebildeten freien Abschnitt 101.2 der Nut 101 eintauchen, sofern es sich über die gesamte Länge des Ristschildes 2 erstreckt. Grundsätzlich ist es aber auch möglich, die Länge des Abdeckblattes 17.1 so zu begrenzen, daß es lediglich im Bereich oberhalb des obersten Umlenkelements bzw. -blockes 23 (Fig. 26) oder nur zwischen dem oberen oder unteren Umlenkelement bzw. -block 23 in den oder in die Schlitz(e) 102 eintaucht.26 and 29, a cover sheet 17.1 is attached to the right side instead of or in addition to this - or in addition to this - on the free side edge of the riser plate 2, in particular integrally formed there, in one or more engages individual pocket-shaped slot (s) 102 of the locking tab 4 and immerses them correspondingly deeply in the locking device 12 when the locking device is tensioned. In this or in these slot (s) 102, the deflection elements or blocks 23 are inserted at the appropriate locations, preferably with their front side 23.2, into the slot or slots 102 and fastened there. The cover sheet 17.1 can thus dip into the free section 101.2 of the groove 101 formed in this way, provided that it extends over the entire length of the riser plate 2. Basically, it is also possible to limit the length of the cover sheet 17.1 so that it only in the area above the uppermost deflection element or block 23 (FIG. 26) or only between the upper or lower deflection element or block 23 in the or immersed in the slot (s) 102.

Wie anhand der Fig. 30 gezeigt ist, ist die Form der Umlenkelemente bzw. -blöcke 23 und die Form der Nut 101 der Schließlappen 3, 4 derart aneinander angepaßt, daß bei eingesetztem Umlenkelement bzw. -block 23 zumindest eine Verdrehung um die Flächenebene 23.3 (Fig. 30A) nicht möglich ist. Dies ist hier durch die in der Draufsicht rechteckige äußere Gestalt des Umlenkelements bzw. -blockes 23 und eine entsprechend rechteckige Ausbildung der Nut 101 erreicht. Eine vollkommene Lagefixierung ohne zusätzliche Klebemittel oder dgl. ist gemäß den Fig. 30 und 30A dadurch möglich, daß am Umlenkelement bzw. -block 23 beidseitig ein Rastvorsprung in Form des Endstückes eines Bolzens 23.4 angeformt oder ein durchgehender Bolzen in das Umlenkelement bzw. in den Umlenkblock 23 eingesteckt ist, dessen beiderseits überstehende Bolzenendstücke 23.4 in eine innere oder durchgehende Aussparung bzw. in einem entsprechenden Durchbruch 105 der Seitenwände 103, 104 der Nut 101 einrasten, indem die Seitenwände 103, 104 elastisch federnd auseinandergezogen werden und nach demEinsetzen des Umlenkelements bzw. -blockes 23 die Bolzenendstücke 23.4 in die Aussparung einrasten.30, the shape of the deflection elements or blocks 23 and the shape of the groove 101 of the locking flaps 3, 4 are adapted to one another such that when the deflection element or block 23 is inserted, at least one rotation about the surface plane 23.3 (Fig. 30A) is not possible. This is achieved here by the outer shape of the deflecting element or block 23, which is rectangular in plan view, and a correspondingly rectangular configuration of the groove 101. A perfect one 30 and 30A is possible in that a locking projection in the form of the end piece of a bolt 23.4 or a continuous bolt in the deflection element or in the deflection block 23 is formed on both sides of the deflection element or block 23 is inserted, the protruding bolt end pieces 23.4 on both sides snap into an inner or continuous recess or in a corresponding opening 105 of the side walls 103, 104 of the groove 101 by the side walls 103, 104 being elastically pulled apart and after the deflection element or block has been inserted 23 engage the bolt end pieces 23.4 in the recess.

Bei Verwendung eines einzusetzenden, das Umlenkelement bzw. den Umlenkblock 23 ganz durchsetzenden Bolzens 23.4 und einer durchbrochenen Aussparung 105 in wenigstens einer Seitenwand 103, 104 (Fig. 30B) kann auch das Umlenkelement bzw. der Umlenkblock 23 zunächst in die Nut 101 eingesteckt und anschließend durch Einschieben des Bolzens das Umlenkelement bzw. der Umlenkblock 23 in seiner Lage festgelegt werden. Es ist auch möglich, andere Rast- und/oder Klemmmittel zur Befestigung und/oder Lagefixierung des Umlenkelementes bzw. -blockes 23 vorzusehen. Außerdem können zur Drehsicherung auch zwei oder mehr Bolzen 23.4 je Umlenkelement bzw. -block 23 oder dgl. vorgesehen sein.When using a bolt 23.4 to be inserted that completely penetrates the deflection element or the deflection block 23 and a perforated cutout 105 in at least one side wall 103, 104 (FIG. 30B), the deflection element or the deflection block 23 can also be inserted first into the groove 101 and then by inserting the bolt, the deflection element or the deflection block 23 can be fixed in its position. It is also possible to provide other latching and / or clamping means for fastening and / or fixing the position of the deflection element or block 23. In addition, two or more bolts 23.4 per deflecting element or block 23 or the like can also be provided for securing against rotation.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung können insbesondere an der Unterseite 2.1 oder auch an der Oberseite des Ristschildes 2 (Fig. 31) in dem von den beiden Schließlappen 3, 4 gebildeten Zwischenraum zwei Umlenkelemente bzw. -blöcke 23 quer zur Längsachse des Ristschildes 2 nebeneinander angeordnet, beispielsweise am Ristschild 2 angeformt oder befestigt sein. Um diese beiden Umlenkelemente bzw. -blöcke 23 greift von einem Schließlappen 3, 4 aus eine Schlinge 11.1 (Fig. 26) herum, so daß das Spannelement 11 keine Kreuzungsstelle aufweist. Zweckmäßig können diese Umlenkelemente bzw. -blöcke 23 zu einer baulichen Einheit 23.5 zusammengefaßt sein, wie in Fig. 31 im Querschnitt des Ristschildes 2 dargestellt ist. Die bauliche Einheit 23.5 weist ein Mittelstück 23.6 auf. Mit diesem ist es mittels einer Steck- und/ oder Rastverbindung an der Unterseite 2.1 des Ristschildes 2 befestigt. Im Ausführungsbeispiel gemäß Fig.31 dient hierzu ein Zapfen 2.2 des Ristschildes 2, der durch ein entsprechendes Loch des Mittelstücks 23.6 hindurchgreift.According to an advantageous embodiment of the invention, in particular on the underside 2.1 or also on the top of the riser plate 2 (FIG. 31) in the space formed by the two locking tabs 3, 4, two deflecting elements or blocks 23 can be arranged next to one another transversely to the longitudinal axis of the riser plate 2 arranged, for example molded or attached to the riser plate 2. A loop 11.1 (FIG. 26) engages around these two deflection elements or blocks 23 from a locking tab 3, 4, so that the tensioning element 11 does not have a crossing point having. These deflection elements or blocks 23 can expediently be combined to form a structural unit 23.5, as shown in FIG. 31 in the cross section of the riser plate 2. The structural unit 23.5 has a center piece 23.6. With this it is attached to the underside 2.1 of the riser plate 2 by means of a plug-in and / or snap-in connection. In the exemplary embodiment according to FIG. 31, a pin 2.2 of the riser plate 2 is used for this purpose, which extends through a corresponding hole in the middle piece 23.6.

Die Befestigung der Umlenkelemente bzw. -blöcke 23 an der Unterseite 2.1 des Ristschildes 2 kann durch Thermoschweißung, Kleben, Verrasten, Vernieten oder dgl. erfolgen.The deflection elements or blocks 23 can be fastened to the underside 2.1 of the riser plate 2 by thermal welding, gluing, locking, riveting or the like.

Vorteilhaft besitzt der Ristschild 2 auf der Unterseite 2.1 eine Vertiefung 106 (Fig. 31) in die die bauliche Einheit 23.5 eingebaut ist, so daß ein störender Druck auf den Rist des Fußes vermieden wird.Advantageously, the instep shield 2 on the underside 2.1 has a recess 106 (FIG. 31) into which the structural unit 23.5 is installed, so that a disturbing pressure on the instep of the foot is avoided.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung kann die bauliche Einheit 23.5 oder zumindest dessen vorzugsweise vertieftes Mittelstück 23.6 durch eine Abschlußplatte 107 lagefixiert oder zusätzlich lagefixiert sein, indem die Abschlußplatte 107 auf den Zapfen 2.2 aufgesteckt und verklebt und/oder verrastet und/oder vernietet und/oder thermoverschweißt ist (Fig. 31).According to a further advantageous embodiment of the invention, the structural unit 23.5 or at least its preferably recessed middle piece 23.6 can be fixed in position or additionally fixed in position by a cover plate 107 by the cover plate 107 being plugged and glued and / or latched and / or riveted and / / or is heat-sealed (Fig. 31).

Beim Ausführungsbeispiel gemäß Fig. 30 bestehen der Ristschild 2 und die Schließlappen 3, 4 aus einem einzigen Bauteil, beispielsweise aus einem Stanz-, Spritz- oder Gußteil. Bei dieser Ausführungsform sind anstelle von Gleitfolien 17 (Fig. 26, linke Seite) oder von entsprechend angeformten Abdeckblättern 17.1 (Fig. 26 und 29, rechte Seite) mit den benachbarten Bauteilen zusammenhängende Membranen 39 vorgesehen, insbesondere mit angeformt, beispielsweise angespritzt. Diese Membranen 39 sind vorzugsweise zusammenschiebbar oder zusammenfaltbar, vornehmlich als Faltenbalg ausgebildet. Die Membranen 39 sind bevorzugt oberhalb des bzw. der Spannelements(e) vorgesehen, so daß ein vollkommen dichter Abschluß nach außen gegeben ist.In the exemplary embodiment according to FIG. 30, the riser plate 2 and the closing flaps 3, 4 consist of a single component, for example of a stamped, injection-molded or cast part. In this embodiment, instead of sliding films 17 (FIG. 26, left side) or correspondingly molded cover sheets 17.1 (FIGS. 26 and 29, right side), membranes 39 are provided, in particular molded on, for example molded, with the adjacent components. These membranes 39 are preferably collapsible or collapsible, primarily designed as bellows. The membranes 39 are preferably provided above the tensioning element (s), so that there is a completely tight seal to the outside.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung kann auch bei dieser Ausführung an jedem Schließlappen 3, 4 im Bereich des Mittelfußes jeweils wenigstens ein Spannband 41 bzw. 42 angebracht sein, das seitlich um den Fuß bis in den Sohlenbereich des Schuhes reicht und mit dem Sohlenmaterial des Schuhes fest verbunden, beispielsweise verklebt, vernäht oder vernietet ist. Auch ist es möglich, diese Spannbänder 41, 42 durch einen oder mehrere Bügel miteinander zu verbinden. Diese Spannbänder 41, 42 sind in der Fig. 29 gestrichelt angedeutet, wobei an dem einen, vorzugsweise an dem inneren Schließlappen 3, ein Spannband 41 und am anderen, vorzugsweise am äußeren Schließlappen 4, zwei Spannbänder 42 vorhanden sein können.According to a further advantageous embodiment of the invention, at least one tensioning strap 41 or 42 can be attached to each locking flap 3, 4 in the region of the midfoot in this embodiment, which stretches laterally around the foot into the sole region of the shoe and with the sole material of the Shoe is firmly connected, for example glued, sewn or riveted. It is also possible to connect these straps 41, 42 to one another by means of one or more brackets. These tensioning straps 41, 42 are indicated by dashed lines in FIG. 29, it being possible for one tensioning strap 41 to be present on one, preferably on the inner locking tab 3, and two tensioning straps 42 on the other, preferably on the outer locking tab 4.

Bei Verwendung von zwei Spannbändern 41 bis 42 an dem einen oder anderen Schließlappen 3 bzw. 4 können diese V-förmig zueinander verlaufen.When using two tensioning straps 41 to 42 on one or the other locking tabs 3 and 4, these can run in a V-shape with respect to one another.

Schließlich ist es nach einer weiteren Ausgestaltung der Erfindung auch vorteilhaft, daß der Ristschild 2 an den Schließlappen 3, 4 oder an einem diese verbindenden Steg am der Schuhspitze zugewandten Ende 5 des Ristschildes 2 befestigt, vorzugsweise über eine Schnappverbindung lösbar befestigt ist.Finally, according to a further embodiment of the invention, it is also advantageous that the riser plate 2 is fastened to the closing flaps 3, 4 or to a web connecting them on the end 5 of the riser plate 2 facing the shoe tip, preferably detachably fastened by means of a snap connection.

Eine derartige Ausführung ist in den Fig. 32 und 33 dargestellt. Hierbei sind an der Unterseite des Steges 5 in einer dafür vorgesehenen Vertiefung 67 nach unten ragende Zapfen 68 angeformt, die in entsprechend angepaßte Löcher 69 eines verdünnten Zungenansatzes 70 des Ristschildes 2 eingreifen, beispielsweise einrasten. Zusätzlich kann eine Verklebung und/oder Thermoverschweißung der miteinander zu verbindenden Teile vorgenommen werden.Such an embodiment is shown in FIGS. 32 and 33. Here, on the underside of the web 5, pins 68 projecting downward are formed in a recess 67 provided for this purpose, which engage in correspondingly adapted holes 69 of a thinned tongue attachment 70 of the instep shield 2, for example snap into place. In addition, the parts to be connected can be glued and / or thermally welded.

Zusätzlich sind in den Fig. 32 und 33 an die Außenkanten 71 der Schließlappen 3, 4 angeformte, im Querschnitt verdünnte und zum Ende 72 hin spitz zulaufende Befestigungsflansche 73 dargestellt. Mit diesen Befestigungsflanschen 73 kann die Schließvorrichtung auf oder unter das Obermaterial eines entsprechenden Schuhes oder zwischen ein aus wenigstens zwei Schichten bestehendes Obermaterial auf- oder eingeklebt und/ oder auf- oder eingenäht werden. Auch am Zungenansatz 70 des Ristschildes 2 kann ein Befestigungsflansch 50 vorgesehen sein. In Fig. 29 ist am Schließlappen 3 durch die strichpunktierte Linie 75 ein an allen Außenkanten 71 des Schließlappens 3 und des Steges 5 vorgesehener Befestigungsflansch 73 angedeutet. Ein entsprechender Befestigungsflansch kann selbstverständlich auch am Schließlappen 4 und am anschließenden Steg 5 vorgesehen sein.In addition, in FIGS. 32 and 33, fastening flanges 73 are shown which are formed on the outer edges 71 of the locking flaps 3, 4, are thinned in cross-section and taper towards the end 72. With these fastening flanges 73, the closing device can be glued or glued on and under the upper material of a corresponding shoe or between an upper material consisting of at least two layers and / or sewn on or sewn on. A fastening flange 50 can also be provided on the tongue extension 70 of the riser plate 2. In FIG. 29, a fastening flange 73, which is provided on all outer edges 71 of the locking tab 3 and of the web 5, is indicated on the locking tab 3 by the dash-dotted line 75. A corresponding fastening flange can of course also be provided on the locking tab 4 and on the adjoining web 5.

Gemäß einem weiteren, in Fig. 34 dargestellten Ausführungsbeispiel kann der Ristschild 2 , in der Draufsicht gesehen, zu seinem vorderen Ende 5 bzw. zu seiner Endkante 5.1 hin verjüngt sein, insbesondere konisch oder keilförmig verlaufen Dies ist vorzugsweise bei einer schmalen Schuhausbildung vorteilhaft. Außerdem ergibt sich bei Anwendung einer Materialschwächung und/oder bei Anwendung von Wellen und/oder Rillen 15.1 am Ende 5 des Ristschildes 2 eine besonders biegsame Ausführung in diesem Bereich.According to a further exemplary embodiment shown in FIG. 34, the riser shield 2, viewed in plan view, can be tapered towards its front end 5 or towards its end edge 5.1, in particular tapered or wedge-shaped. This is preferably advantageous in the case of a narrow shoe design. In addition, when using a material weakening and / or when using shafts and / or grooves 15.1 at the end 5 of the riser plate 2, a particularly flexible design results in this area.

Bei dem in Fig. 34 dargestellten Ausführungsbeispiel ist außerdem, wie bereits eingangs erwähnt, der Ristschild 2 von den Schließlappen 3, 4 vollkommen getrennt und diese Teile sind somit alle als Einzelelement ausgebildet. Oer Ristschild 2 wird hierbei am Ende 5 nach Art einer Zunge mit dem Schuhobermaterial, beispielsweise durch Nähen und/oder Kleben und/oder Nieten oder in sonst geeigneter Weise verbunden. Die Schließlappen 3, 4 können an dem im Öffnungsbereich liegenden Randflächen des Schaftmaterials durch Nähen und/oder Kleben und/oder Nieten oder dgl. befestigt sein. Dabei können die Umlenkelemente bzw. -blöcke 23 an den Schließlappen 3, 4 und an dem Ristschild 2 vorgesehen sein, wie bereits anhand der Fig. 1 bis 4, 14 und 22 bis 26 beispielhaft dargestellt und beschrieben worden ist. Die Umlenkelemente bzw. -blöcke 23 können jedoch auch, wie in Fig. 34 gezeigt, bei Anwendung separater Spannbänder 41, 42 in deren Endbereichen 41.1, 42.1 angebracht sein. Wie bereits anhand der Fig. 18 und 19 beschrieben, sind dann vorzugsweise in den Schließlappen 3, 4 Schlitze 60 zum Durchstecken der Endbereiche 41.1, 42.1 der Spannbänder 41, 42 vorgesehen. Die Umlenkelemente bzw. -blöcke 23 weisen auch hierbei vorteilhaft je eine Anschlagkante 61 auf, die mit einer Schlitzkante, beispielsweise mit der oberen Schlitzkante 62 des Schlitzes 60, beim Schließvorgang in Wirkverbindung gelangt. Die Umlenkelemente bzw. -blöcke 23 des Ristschildes 2 können entweder auf dessen Oberseite oder auf dessen Unterseite angeordnet sein, wie bereits beschrieben wurde.In the exemplary embodiment shown in FIG. 34, as already mentioned at the beginning, the riser plate 2 is completely separated from the closing flaps 3, 4 and these parts are therefore all formed as a single element. Oer Ristschild 2 is connected at the end 5 in the manner of a tongue to the upper of the shoe, for example by sewing and / or gluing and / or riveting or in some other suitable way. The closing flaps 3, 4 can be attached to the edge surfaces of the shaft material lying in the opening area by sewing and / or gluing and / or rivets or the like. The deflection elements or blocks 23 can be provided on the locking tabs 3, 4 and on the riser plate 2, as has already been shown and described by way of example with reference to FIGS. 1 to 4, 14 and 22 to 26. The deflection elements or blocks 23 can, however, as shown in FIG. 34, be attached to their end regions 41.1, 42.1 when using separate tensioning straps 41, 42. As already described with reference to FIGS. 18 and 19, slots 60 are then preferably provided in the locking tabs 3, 4 for inserting the end regions 41.1, 42.1 of the tensioning straps 41, 42. The deflection elements or blocks 23 also advantageously each have a stop edge 61, which comes into operative connection with a slot edge, for example with the upper slot edge 62 of the slot 60, during the closing process. The deflection elements or blocks 23 of the riser plate 2 can be arranged either on the top or on the bottom thereof, as has already been described.

Auch bei der separaten Ausführung von Ristschild 2, Schließlappen 3, 4 und Spannbändern 41, 42 als Einzelelemente können an den der Schuhspitze zugewandten Enden der Schließlappen 3, 4 und am Ende 5 des Ristschildes 2 quer zur Schuhlängsachse verlaufende Materialschwächungen und/oder Wellen und/oder Rillen 15.1 vorgesehen sein, um eine hohe Biegsamkeit in diesen Bereichen zu erhalten.Even with the separate design of instep plate 2, closing flaps 3, 4 and tensioning straps 41, 42 as individual elements, material weaknesses and / or waves and / or shafts and / or shafts and / or or grooves 15.1 can be provided in order to obtain a high degree of flexibility in these areas.

Besonders bei einer Ausgestaltung der Erfindung mit einem nach vorn verjüngten Ristschild 2, beispielsweise gemäß Fig. 34, liegen die Ränder 3.1, 4.1 der Schließlappen 3, 4 bevorzugt parallel zu den benachbarten Rändern des Ristschildes 2.Particularly in an embodiment of the invention with a riser plate 2 tapering towards the front, for example according to FIG. 34, the edges 3.1, 4.1 of the locking flaps 3, 4 are located preferably parallel to the adjacent edges of the riser plate 2.

Die Verwendung von separaten Einzelelementen für den Ristschild 2 und für die Schließlappen 3, 4 gestattet bei hoher Längsbiegesteifigkeit derselben (außer in den Endbereichen, beispielsweise am Ende 5 des Ristschildes 2) eine gute Biegbarkeit in Querrichtung zwischen dem Ristschild 2 einerseits und den Schließlappen 3, 4 andererseits. Dadurch ist eine besonders gute Anschmiegsamkeit der Schließvorrichtung und. damit des Schuhes über die Ristwölbung des Fußes erreicht. Zugleich bleibt der gleichmäßige, stufenlose Schließvorgang erhalten und es kann praktisch eine Parallelverschiebung der Schließlappen beim Schließvorgang erreicht werden, was eine gleichmäßige Druckverteilung beim Schließen fördert.The use of separate individual elements for the riser plate 2 and for the locking tabs 3, 4 allows for good longitudinal flexural rigidity (except in the end regions, for example at the end 5 of the riser plate 2) for good bendability in the transverse direction between the riser plate 2 on the one hand and the locking tab 3, 4 on the other hand. This makes the locking device and. so that the shoe reaches over the arch of the instep of the foot. At the same time, the smooth, stepless closing process is retained and practically a parallel displacement of the locking flaps can be achieved during the closing process, which promotes an even pressure distribution when closing.

Bei der erfindungsgemäßen Schließvorrichtung nach den Ausführungsbeispielen gemäß den Fig. 1 bis 33, soweit dort der Ristschild 2 und die Schließlappen 3, 4 ein einheitliches Bauteil oder ein aus Einzelteilen zusammengesetztes, einheitliches Bauteil bilden, bestehen die Teile 2, 3 und 4 bevorzugt aus einem federelastischem Kunststoff mit einem Härtegrad im Bereich von 75 Shore A bis 90 Shore A. Diese Kunststoffteile zählen also zu den "Hartplastik"-Teilen.In the closing device according to the invention according to the exemplary embodiments according to FIGS. 1 to 33, insofar as the riser plate 2 and the closing flaps 3, 4 form a unitary component or a unitary component composed of individual parts, the parts 2, 3 and 4 preferably consist of one resilient plastic with a degree of hardness in the range of 75 Shore A to 90 Shore A. These plastic parts are therefore part of the "hard plastic" parts.

Bei der erfindungsgemäßen Schließvorrichtung gemäß Fig. 34 mit den gesondert hergestellten Bauteilen 2, 3 und 4 können diese Bauteile aus weniger harten, elastischen Kunststoffteilen bestehen, bevorzugt mit einem Härtegrad im Bereich von 60 Shore A bis 70 Shore A. Bei diesem Ausführungsbeispiel bestehen die Umlenkelemente bzw. -blöcke 23 aus einem sehr harten Kunststoffmaterial, vorzugsweise mit einem Härtegrad im Bereich von 75 Shore A bis 90 Shore A.34 with the separately manufactured components 2, 3 and 4, these components can consist of less hard, elastic plastic parts, preferably with a degree of hardness in the range from 60 Shore A to 70 Shore A. In this exemplary embodiment, the deflection elements are made or blocks 23 made of a very hard plastic material, preferably with a degree of hardness in the range from 75 Shore A to 90 Shore A.

Abschließend ist darauf hinzuweisen, daß außer bei dem Ausführungsbeispiel gemäß Fig. 34 grundsätzlich auch bei den Ausführungsbeispielen gemäß den Fig. 16, 17, 20 und 21 der Ristschild 2 und die Schließlappen 3, 4 jeweils aus gesonderten Bauteilen bestehen können.In conclusion, it should be noted that except in the embodiment 34, in principle also in the exemplary embodiments according to FIGS. 16, 17, 20 and 21, the riser plate 2 and the locking flaps 3, 4 can each consist of separate components.

Auch ist es alternativ möglich, auch bei diesen Ausführungsbeispielen die Teile 2, 3 und 4 der zentralen Schließvorrichtung scharnierartig oder gelenkig miteinander zu verbinden, wobei die Gelenke auch als gefaltete oder anderweitig hochelastisch ausgebildete Membranen ausgestaltetsein können. In vergleichbarer Weise, wie früher beschrieben, können auch bei diesen Ausführungsbeispielen das untere Ende 5 des Ristschildes 2 und die Verbindung dieses Teiles mit dem Schuhschaft über gewellte oder gefaltete Membranen hochelastisch ausgebildet sein, wie dies anhand der Fig. 14 und 15 beschrieben wurde.Alternatively, it is also possible in these exemplary embodiments to connect parts 2, 3 and 4 of the central locking device to one another in a hinge-like or articulated manner, wherein the articulations can also be designed as folded or otherwise highly elastic membranes. In a comparable way, as described earlier, the lower end 5 of the instep shield 2 and the connection of this part to the shoe upper can be designed to be highly elastic in this exemplary embodiment via corrugated or folded membranes, as was described with reference to FIGS. 14 and 15.

Claims (34)

  1. Footwear provided with a closure device, especially sports, leisure
       or rehabilitation footwear, the upper in the region of the closure being of a material which is able to yield under tension or a number of materials such as leather, artificial leather or fibrous tissue, which are supple and are provided if necessary with facings of leather or artificial leather, and having an instep shield (2) which covers the instep and may be tightened by a tightener element (11) which may be loaded in tension and is led through guides (13, 25) in the instep shield and in closure flaps (3, 4) fitted to the shoe on opposite sides respectively of the instep shield at a distance from it and running essentially in parallel with it, characterized by the following features:
    - the closure flaps (3, 4) consist of elastic, springily elastic or hard elastic material;
    - the closure flaps (3, 4) are fitted to the ends of the two side parts (6, 7) of the upper material or upper (8) of the shoe, adjacent to the instep shield (2);
    - the guides (13, 25) in the instep shield (2) and closure flaps (3, 4) for the deflection of the tightener element or elements (11) are arranged to run in the plane of the instep shield (2) and/or that of the closure flaps (3, 4);
    - on the instep shield (2) a central tightener lock (12) is arranged, into which the tightener element (11) is or elements are introduced from the respective sides (6, 7) of the upper material or upper (8) of the shoe and may be loaded in tension or unloaded by the central tightener lock (12) so that the closure flaps (3, 4) and the side parts (6, 7) of the upper material or upper (8) of the shoe which are connected firmly to them may be moved in the closing direction or the opening direction with respect to the instep shield (2);
    - the tightener element or elements (11) at least in the upper and lower parts (27, 28) of the instep shield (2) connect the closure flaps (3, 4) and instep shield (2) without crossing;
    - at the end (5) next the toe of the shoe the closure flaps (3, 4) and the instep shield (2) are connected movably together directly or via a link or hinge or the closure flaps (3, 4) are arranged as separate components to run in parallel with or at a small acute angle (α) to the instep shield (2).
  2. Footwear as in Claim 1, characterized in that
    the tightener element or elements (11) connect the closure flaps (3, 4) to the instep shield (2) over the whole closure region (SB) without crossing (Figures 1 and 4).
  3. Footwear as in Claim 1, characterized in that
       in the case of a shape of shoe with a low upper (a shoe) only one crossing (26) of the tightener element or elements (11) is provided in the middle region (MB) of the instep shield (2) (Figure 5).
  4. Footwear as in Claim 1, characterized in that
       in the case of a shape of shoe with a high upper (a boot) two or more crossings (26) of the tightener element or elements (11) are provided in the middle region (MB) of the instep shield (2).
  5. Footwear as in one of the Claims 1, 3 or 4, characterized in that
       the instep shield (2) exhibits in the region of the one crossing (26) or of the number of crossings, grooves (31, 32) which run across one another in the direction of the tightener element or elements (11) and the cross-section of which corresponds at least approximately with the cross-section of the tightener element or elements (11) (Figure 5).
  6. Footwear as in one of the Claims 1 to 5, characterized in that
       the instep shield (2) with the two closure flaps (3, 4) consists of a homogeneous injection-moulded part of plastics and that in the unstressed state of the injection-moulded part the closure flaps (3, 4) automatically adopt with respect to the instep shield (2) the open position (Figures 1 and 5).
  7. Footwear as is one of the Claims 1 to 6, characterized in that
       on the closure flaps (3, 4) deflector-books (23) with guides (25) for at least one tightener element (11) are provided, over which the tightener element or elements (11) is/are looped alternately from one closure flap (3, 4) to the other (Figure 5).
  8. Footwear as in Claim 2 or 7, characterized in that
       on the closure flaps (3, 4) and instep shield (2) deflector-blocks (23) with guide channels (13) for one tightener element (11) are provided lying opposite but offset from one another, the tightener element or elements (11) being looped over deflector-blocks (23) lying opposite one another (Figure 1).
  9. Footwear as in Claim 8, characterized in that
       openings (14) in the adjacent sides of the closure flaps (3, 4) and instep shield (2) from guide channels (13) in the shape of circular arcs arranged offset from one another, lie opposite one another in such a way that the tightener element or elements (11) in the form of cord or tape run(s) at least approximately in the shape of a S (Figures 1 and 3).
  10. Footwear as in Claim 9, characterized in that
       on each closure flap (3, 4) at least two guide channels (13) and in the instep shield (2) on each side at least one guide channel (13) is/are provided (Figures 1 and 2).
  11. Footwear as in one of the Claims 8 to 10, characterized in that
       the tightener element or elements (11) is/are led from the central tightener lock (12) via the one closure flap (3) to the instep shield (2), then back to the closure flap (3) and from there to the other closure flap (4) and on to the instep shield (2), then back to the closure flap (4) and firmly back again to the central tightener lock (12) (Figure 1).
  12. Footwear as in one of the Claims 1 to 11, characterized in that
       the instep shield (2) and closure flaps (3, 4) consist of wear-resistant material having a low coefficient of friction.
  13. Footwear as in one of the Claims 7 to 12, characterized in that
       the guide channels (13) or guides (25) for the tightener element (11) are lined with wear-resistant material having a low coefficient of friction.
  14. Footwear as in one of the Claims 8 to 13, characterized in that
       the radius (R) of the guide channels (13) amounts to 5 mm to 15 mm.
  15. Footwear as in one of the Claims 8 to 14, characterized in that
       the angle (β) between the openings of the guide channels (13) amounts to 100° to 180°.
  16. Footwear as in one of the Claims 1 to 15, characterized in that
       the tightening of the instep shield (2) and closure flaps (3, 4) with the side parts (6, 7) of the upper of the shoe may be set by means of a central tightener lock (12) in fine steps or even approximately continuously.
  17. Footwear as in one of the Claims 1 to 16, characterized in that
       as the tightener element (11) a cord of wire or plastics is provided.
  18. Footwear as in one of the Claims 1 to 17, characterized in that
       in the region (40) of the middle of the foot at least one strain band (41, 42) is applied to the closure flaps (3, 4) and reaches at the sides (6, 7) of the upper of the shoe on the inside (46) of the material of the upper or between different layers of the material of the upper or on the outside of the material of the upper down to the region (43) of the sole, and that the strain bands (41, 42) are connected together or to the material of the sole (Figures 8 and 9).
  19. Footwear as in Claim 1, characterized in that
       when an instep shield covering (34) and flap coverings (36, 37) are employed, no connection is provided between the instep shield (2) and the closure flaps (3, 4), but these parts (2; 3, 4) consist of separate single elements.
  20. Footwear as in one of the Claims 1 to 19, characterized in that
       one, two or more strain bands (41, 42) are provided, which are not connected to one of the closure flaps (3, 4), and that the deflector elements (23) for the tightener element (11) are provided in the end regions (41.1, 42.1) of the strain bands (Figure 17).
  21. Footwear as in Claim 20, characterized in that
       on each closure flap (3, 4) one deflector element (23) which is offset from the deflector elements (23) on the strain bands (41, 42) is provided, and - looking in the direction along the shoe - between each of the deflector elements (23) on the strain bands (41, 42) and on the associated closure flap (3, 4) one deflector element (23) is provided on the adjoining side of the instep shield (2) (Figure 21).
  22. Footwear as in Claim 20 or 21, characterized in that
       the ends (41.1, 42.1) of the strain bands (41, 42) are pushed through a slit (60) in the adjacent closure flap (3, 4) (Figures 18 and 19).
  23. Footwear as in Claim 22, characterized in that
       on each strain band (41, 42) or on the deflector element (23) which is provided on the strain band (41, 42) a stop-edge (61) is provided at the top, which upon tightening comes into operative connection with an edge, in particular the upper edge (62) of the slit and pulls the corresponding closure flap (3, 4) into the closed position (Figure 18 and 19).
  24. Footwear as in Claim 23, characterized in that
       the deflector elements (23) on the strain bands (41, 42) are connected together by a web (23a) to form a common stop-edge (61) (Figure 20).
  25. Footwear as in one of the Claims 22 to 24, characterized in that
       the strain bands (41, 42) are provided in their end regions adjacent to the closure flaps (3, 4) with catch elements (41.2, 42.2) which enable a detachable connection of the deflector elements (23) at different places in the end regions of the strain bands (41, 42) (Figure 19).
  26. Footwear as in Claim 23, characterized in that
       in the open position of the closure device there is a clearance between the stop-edge (61) and the upper edge (62) of the slit (Figure 19).
  27. Footwear as in one of the Claims 1 to 26, characterized in that the
       strain bands (41, 42) consist of transparent or translucent material.
  28. Footwear as in Claim, characterized in that
       each of the closure flaps (3, 4) on the narrow sides (3.1, 4.1) next the instep shield (2) exhibits at least one groove (101) which extends inwards in the form of a longitudinal slit, that on both sides of the instep shield (2) at least one deflector element (23) is pushed into each of the grooves (101) for taking up the tension occuring upon tightening the tightener element (11), and arranged fixed in the groove (101), and that the tightener element (11) each time loops round an arcuate sliding face on the deflector element (23) Figures 26 to 30).
  29. Footwear as in Claim 28, characterized in that
       at least the deflector elements (23) on the narrow sides (3.1, 4.1) of the closure flaps (3, 4), which are provided in the region of the lower part (28) of the instep shield (2), are arranged recessed or set back and the associated part of the coverblade (17.1) of the instep shield (2) engages in the portion (101.2) of the groove (101) in the closure flap (3, 4) thereby freed (Figure 29).
  30. Footwear as in Claim 1, characterized in that
       two deflector elements (23) arranged opposite one another are assembled into one structural unit (23.5) and fastened to the instep shield (2) (Figure 31).
  31. Footwear as in Claim 30, characterized in that
       the structural unit (23.5) exhibits a middle (23.6) by which it is fastened by means of a plug-in and/or snap-in connection to the underside (2.1) or to the surface of the instep shield (2) (Figure 31).
  32. Footwear as in Claim 30 or 31, characterized in that
       the deflector elements (23) are or respectively the structural unit (23.5) is provided in a depression (106) in the onderside (2.1) of the instep shield (2) (Figure 31).
  33. Footwear as in Claim 1 to 18, characterized in that
       the instep shield (2), looked at in plan, tapers in towards its front end (5) (Figure 34).
  34. Footwear as in Claim 1 or 18, characterized in that
       the instep shield (2), the closure flaps (3, 4) and the strain bands (41, 42) consist of separate individual elements, that the deflector elements (23) are fitted to the ends (41.1, 42.1) of the strain bands (41, 42) in such a way that each end (41.1, 42.1) may be pushed into a slit (60) in one strain band (41, 42) and during the closing process a stop-edge (61) provided on the strain band (41, 42) may in each case be brought into operative connection with the edge (62) of the associated slit (60) (Figures 19 and 34).
EP90908458A 1989-06-03 1990-05-31 Shoe with a closure device and with an upper made of flexible material Expired - Lifetime EP0474708B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90908458T ATE93693T1 (en) 1989-06-03 1990-05-31 CLOSING DEVICE SHOE WITH SENSITIVE CUFF MATERIAL.

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE8906840 1989-06-03
DE8906840U 1989-06-03
DE8912788U DE8912788U1 (en) 1989-06-03 1989-10-28
DE8912788U 1989-10-28
DE9001645U DE9001645U1 (en) 1990-02-13 1990-02-13
DE9001645U 1990-02-13
DE9005496U 1990-05-15
DE9005496U DE9005496U1 (en) 1990-05-15 1990-05-15

Publications (2)

Publication Number Publication Date
EP0474708A1 EP0474708A1 (en) 1992-03-18
EP0474708B1 true EP0474708B1 (en) 1993-09-01

Family

ID=27436371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90908458A Expired - Lifetime EP0474708B1 (en) 1989-06-03 1990-05-31 Shoe with a closure device and with an upper made of flexible material

Country Status (12)

Country Link
US (2) US5117567A (en)
EP (1) EP0474708B1 (en)
JP (1) JP3027183B2 (en)
CN (1) CN1143633C (en)
AR (1) AR248218A1 (en)
AT (1) ATE93693T1 (en)
AU (1) AU632437B2 (en)
CZ (1) CZ288491B6 (en)
DE (1) DE59002580D1 (en)
ES (1) ES2045922T3 (en)
PL (1) PL165553B1 (en)
WO (1) WO1990014779A1 (en)

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CZ288491B6 (en) 2001-06-13
ATE93693T1 (en) 1993-09-15
AU5672490A (en) 1991-01-07
US5117567A (en) 1992-06-02
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WO1990014779A1 (en) 1990-12-13
US5181331A (en) 1993-01-26
CN1047797A (en) 1990-12-19
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EP0474708A1 (en) 1992-03-18
PL285429A1 (en) 1991-01-14
AR248218A1 (en) 1995-07-12
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ES2045922T3 (en) 1994-01-16
CS269590A3 (en) 1991-11-12

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