EP2918769B1 - Displaceable and lockable axis arrangement for the winding shaft of a shading device - Google Patents
Displaceable and lockable axis arrangement for the winding shaft of a shading device Download PDFInfo
- Publication number
- EP2918769B1 EP2918769B1 EP14020107.0A EP14020107A EP2918769B1 EP 2918769 B1 EP2918769 B1 EP 2918769B1 EP 14020107 A EP14020107 A EP 14020107A EP 2918769 B1 EP2918769 B1 EP 2918769B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding shaft
- clamping
- bushing
- axis
- section
- 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.)
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Links
- 238000004804 winding Methods 0.000 title claims description 131
- 238000003892 spreading Methods 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 description 17
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241001295925 Gegenes Species 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/40—Roller blinds
- E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
- E06B9/50—Bearings specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/08—Roll-type closures
- E06B9/11—Roller shutters
- E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
- E06B9/171—Rollers therefor; Fastening roller shutters to rollers
- E06B2009/1713—Telescopic rollers
Definitions
- the invention relates, according to the preamble of claim 10, to a building opening shading device, in particular a vertical awning with a curtain which can be wound up and unwound on a winding shaft, as well as an axle cap module for the winding shaft according to the preamble of claim 1.
- Winding shafts on which their curtain or the curtain-operated bands for raising and lowering the curtain up or are unwound.
- These winding shafts are usually made as hollow shafts, in which a serving for driving tubular motor can be accommodated.
- the winding shafts usually have a six- or eight-sided cross-section, in vertical awnings, however, a round cross-section, usually a Kedernut is indented for inserting a kerosene cloth holding the inside.
- the hollow winding shaft of such a building opening shading device is supported at its two front ends in corresponding, building-side side bearings.
- These building-side brackets or side bearings are usually provided on visor caps or side panels of a winding shaft housing, such as a roller shutter box, but can, for. B. also be attached to a wall of a Mauerleibungshöhlung the building.
- These brackets or side bearings are usually designed as plain bearings, in the inner bearing rings, the winding shaft is inserted with its two end bearing journals.
- tubular motor driven winding shafts such a side bearing can be provided only on one side of the winding shaft, whereas the winding shaft on the other side over the Tubular motor supports.
- axle cap module has a pressed or pressed into the winding shaft inner sleeve in which a Ausschubfeder supported, via which a support member, so the bearing journal exhibiting extension piston or Carrier piece in winding shaft axis direction is received against the spring force press-fit in the winding shaft.
- An example of a building opening shading device with such an axle cap module is the European patent specification EP 1 746 244 B1 refer to.
- a winding shaft with such a resilient end also shows the European patent application EP 1 936 106 A2 , the German Utility Model DE 20 2007 004 845 U1 , as well as the European patent application EP 07 030 080 A1 and the French patent application FR 2 934 307 A1 ,
- the present invention is based on the object of further developing an axle cap module for a winding shaft of a building opening shading device of the generic type and such a building opening shading device such that the production-side assembly of the winding shaft can be simplified and made cheaper Reliable fit of the axle cap module is achieved in the winding shaft.
- the support nozzle is generic in Wickelwellenachscardi between an outwardly pushed-out position and an inwardly depressed position slidably and preferably held captive, and further preferably biased in the outwardly pushed-out position.
- the inner bush is now accommodated in a clamping bush which can be inserted into the winding shaft at the end face and which can be spread radially outward over the inner bushing at least in regions.
- the inner sleeve is formed from two screwed together clamping bushes which are movable by tightening the screw in winding shaft axis direction to each other and by loosening the screw in winding shaft axis of each other away.
- the clamping bush has at least one wedge section which conically tapers on the inner circumference side.
- At least one, preferably the inner clamping bush also has a concentric to the winding shaft axis, to the other clamping bush towards the outer peripheral side conically tapered counter-wedge portion which is assigned to the inner peripheral side wedge portion of the clamping bush.
- About the screw connection of the two clamping bushes and the wedging of the clamping bush with the inner bushing formed by the two clamping bushes attachment of the axle cap module in the winding shaft thus takes place in the manner of a wedge gear, wherein the at least one, preferably the inner clamping bush when tightening the screw with its counterpart wedge against presses the wedge portion of the clamping bush and thereby jammed the Achskappenmodul in the winding shaft and the jamming of the axle cap module in the winding shaft when loosening the screw also dissolves.
- axle cap module can be omitted in the winding shaft.
- individual parts of the axle cap module can be made of low-cost materials and / or larger tolerances and no longer have to be designed for such a high press-in pressure as was previously the case.
- the conical design of the wedging of the wedge gear along the winding shaft axis manages a good self-centering of the inner sleeve of the clamping bush, wherein on the screw of the two inner sleeve forming clamping bushes actuation of such a type wedge gear and the insertion of the carrier nozzle formed in the two clamping bushes Inner bush is only possible.
- a range of> 3 ° to ⁇ 25 °, preferably> 8 ° to ⁇ 12 ° has been found for the cone angle of the collet-side wedge section or the clamping bush-side counter wedge section, in particular if the clamping bush made of plastic and the clamping bush comprising the wedge section are made of a metal like zinc diecasting.
- only one of the two clamping bushes has a wedge portion and is thereby held against the clamping bush when the other clamping bushing is rotated, while the other, rotatable clamping bushing has a substantially smaller contact surface on the clamping bush.
- the correspondingly much lower friction causes the clamping sleeve provided with the conical wedge portion to be held against, while the other, for example, with a radial surface on the clamping sleeve fitting clamping sleeve is rotatable.
- a smaller centering cone or the like may be provided on the radial surface with which this other clamping bush rests on the clamping bush, without jeopardizing the operability of the screw connection of the two clamping bushes.
- the inner clamping bush is provided with the wedge portion and the outer clamping bush with the substantially smaller contact surface on the clamping bush, then it is also ensured that the outer clamping bush always remains at the desired axial position, whereas the inner clamping bushing when tightening the screw connection in the axial direction moves, especially when the clamping bush is supported on the front side of the winding shaft.
- the clamping bush may have a ring portion with an annular radially outwardly projecting stop flange, which forms a frontal stop, to which the clamping bush can be inserted into the winding shaft.
- the two clamping bushes one, preferably the outer clamping bush at its end facing the other clamping bushing provided with a coaxial to the clamping outer cylindrical surface portion having a molded external thread, and the other, preferably the inner clamping bushing at one of them, preferably the outer clamping bushing facing end with a corresponding, coaxial to the clamping sleeve, inner cylindrical surface portion having a corresponding molded internal thread.
- the two clamping bushes are thus bolted directly to each other, whereby additional components can be saved, wherein the diameter of the threaded portions can be chosen so large that the support sleeve can be accommodated in a cavity which is surrounded by the threaded portions.
- the screwing of the two clamping bushes can be actuated via the support sleeve when the support sleeve has an engaging portion on the one preferred, the outer clamping bush, in which the support sleeve is axially displaceable, is rotatable by a fitter.
- the the carrier neck receiving clamping bush is therefore advantageous the rotatable clamping bush and therefore has no or at least a shorter wedge portion than the other, so preferably the inner clamping bushing, which is not torque-transmitting with the support sleeve, but held against the wedge portion on the counter-wedge portion of the clamping bush when pressing the screw.
- the inner clamping bush has the wedge section tapering outward in the winding shaft axis direction toward the outside on the outer peripheral side. Accordingly, the clamping bush only needs a corresponding, on the inner peripheral side in Wickelwellenachsrichtgung outwardly tapering counter-wedge portion.
- the outer clamping bush advantageously has a radially outwardly from its outer circumference radially outwardly projecting stop on an annular counter-attack surface the facing in Wickelwellenachsuze outward end face of the clamping bush presses.
- the clamping bush can have a geometrically relatively simple structure that can be produced from plastic, with a ring section from which a winding shaft coaxially arranged plurality of expansion segments protrudes inward either in both winding shaft axis directions or in view of the above-mentioned advantageous development only in the winding shaft axial direction.
- the plurality of expansion segments can then form the counter-wedge portion of the clamping bush, wherein each expansion segment on the inner peripheral side has a substantially inner cone segment-shaped surface.
- the ring portion is slotted so that the clamping sleeve can be adapted to the inner circumference of the winding shaft, on which it should rest, which can vary due to tolerances caused by manufacturing tolerances in certain dimensions.
- the inventively provided or further developed as described above clamping bush offers advantages not only for manufacturing tolerances on the inner diameter of the winding shaft, but also in view of the fact that in the building opening shading winding waves with different inner diameter and different inner cross-sectional shape are used, all with one to the Clamping bush same axle cap module can be provided, which brings manufacturing cost advantages.
- the clamping bush can assume as an adapter different peripheral outer dimensions or contours, as long as the circumferential inner dimensions or contour remains the same.
- the axle cap module is therefore delivered with a plurality of clamping bushes serving as an adapter set for different winding shafts, the plurality of clamping bushes having different outside dimensions and / or contours, but the same inside dimension and contour.
- winding shafts for shutters usually have an octagonal internal cross-sectional shape.
- a clamping bushing provided for a roller shutter winding shaft has a circumferential outer flange projecting circumferentially radially outward on the annular portion and has an outer peripheral contour lying on a lateral surface of a straight prism with a polygonal, in particular octagonal cross-section, wherein each of the expansion segments can have a planar outer peripheral surface one of the plurality of corners corresponding to the plurality of expansion segments is preferably provided.
- Winding shafts for vertical awnings usually have a circular inner cross section, with the edge of a piping spring receiving a piping groove projecting inwards.
- a clamping bushing provided for such a vertical awning winding shaft therefore has a circumferential outer contour lying on a cylindrical outer surface, in total or at least up to a stop flange projecting annularly radially outwards on the annular portion, in which a winding shaft-parallel Recess for a corresponding, inner peripheral side radially inwardly projecting driver of the winding shaft is excluded.
- the driver can be formed by the Kedernutein stamped.
- the expansion segments may have a cylinder-segment-shaped outer peripheral surface, in which case a corresponding to the driver associated position spreading segment is missing.
- FIG. 1 in which a generally designated 10, hollow winding shaft is shown, which is mounted at its two front ends in each case on a visor cap or on a side part 1 or 11 of the winding shaft box, not otherwise shown.
- the side parts 1, 11 may be identical, but the winding shaft 10 is supported axially fixed on the side part 11 on its tubular motor, on the other hand on the side part 1 via a Achskappenmodul with a telescopic, resiliently supported in the winding shaft support tube 6, and a attached to the visor side bearing module as will be explained in more detail below.
- FIG. 1 shown a winding shaft for a vertical awning with a round cross-section, but the invention can also be realized on a cross-sectionally polygonal winding shaft, as used for roller shutters, as well.
- the resilient axle cap module points, like FIG. 2 shows, an inner sleeve 5, 9, which is formed of two clamping bushes screwed together, an outer clamping sleeve 5 and an inner clamping bushing 9.
- inner bushing 5, 9 a via a Ausschubfeder 7 outwardly biased support sleeve 6 is included with exclusive degree of freedom in Wickelwellenachsraum over which the winding shaft 10 is supported in a mounted on the side part 1 side bearing 2, 3.
- the side bearing 2, 3 in this case has a formed as a spherical cap inner ring 2, which is mounted on the end of the carrier nozzle 6, and a bearing plate 3 which is fixed to the side part 1 and on which a bearing inner ring 2 receiving bearing outer ring 31 (FIGS. Figure 4 ) is formed.
- the support tube 6 forms together with the two clamping bushes 5, 9 and the Ausschubfeder 7 a clamping element 5, 6, 7, 9, which is guided by a designated 8 clamping bush, or the clamping bush 8 passes through and on which the clamping bush 8 in the Winding shaft 10 can be clamped.
- the inner sleeve 5, 9 formed by the two clamping bushes 5, 9 forms together with the clamping bush 8, through which it is passed, a bushing arrangement 5, 8, 9.
- the outer clamping bush 5 has, as in FIG. 7 is shown, an outer peripheral portion having an external thread 53, which faces the inner clamping bush 9, which in turn on its outer clamping bush 5 side facing an inner peripheral portion having a corresponding internal thread 93.
- the two clamping bushes 5, 9 are thus screwed together and can move towards each other by tightening the screw in winding shaft axis direction and by loosening the screw away from each other.
- the outer clamping bush 5 has a radially outwardly projecting stop flange 52 and the inner clamping bushing 9 in the winding shaft axis direction from the inside to the outside conically tapered outer peripheral portion or wedge portion 92 (see FIG. 8a ).
- the clamping bush 8 has a ring section 81 slotted at a slot 86, see FIG. 11 of which a plurality of concentric to the winding shaft arranged spreading or counter wedge segments 83 protrude in winding shaft axis inwardly.
- the inner peripheral side surfaces of the counter wedge segments 83 extend on a conical shape corresponding to the conical shape of the wedge portion 92 of the inner clamping bushing 9 and can spread due to the divided by segment interspaces 85 fan structure when the screw of the two clamping bushes 5, 9 is tightened and the two clamping bushes then each other move and thereby exercise on the radially projecting Antschungsflanschring 52 on the outer clamping sleeve 5 on the one hand and the conical wedge portion 92 on the inner clamping sleeve 9 on the other hand, a radially outward pressure on the counter wedge segments 83 of the clamping bush 8.
- the clamping element 5, 6, 7, 9 and the clamping bush 8 thus form a by turning on or loosening the screw of the two clamping bushes 5, 9 operable wedge gear, via which the clamping bush 8 can be pressed against the inner circumference of the hollow winding shaft 10, causing the Achschappenmodul anchor in the hollow shaft 10 total.
- the wedge angle at the conical wedge portion 92 of the inner clamping bush 9 and at the formed by the counter wedge segments 83 counter wedge portion 82 of the clamping bush 8 is chosen to be quite small, in the example shown about 10 °, with the wedge or counter wedge sections 82, 83rd extend over a relatively large axial length and almost around the entire circumference. As a result, only an almost self-locking frictional engagement between the inner clamping bush 9 and the clamping bush 8 is achieved. Beyond that, see FIG.
- FIG. 14 1 shows the clamping bush 8 has a corresponding collar engagement 84, which forms a gap in the Sp Schwarzsegmentring forming the counter-wedge portion 82 and extends up to the ring portion 81.
- the outer, rotatable clamping sleeve 5 is actuated via the support sleeve 6, which in FIG. 9 is shown in detail.
- the support piece 6 has a bearing journal or journal portion 61, with which it is supported in the spherical bearing 2, 3 side bearings 2, 3 on the side part 1.
- the bearing pin 61 in turn has an internal hexagonal recess 63 on the front side, on which a tool can be attached to the winding shaft 10 during assembly of the axle cap module.
- a support body 62 which has a conically widening axially inward outer circumference.
- the outer clamping bush 5 has, in accordance with the conical shape of the carrier body 64, on the inner peripheral side, an inner circumferential surface which conically tapers in the direction of the winding shaft axis and from which the fins 54 protrude. This results in a good self-centering of the carrier nozzle 6 in the outer clamping bushing 5 and a play-free storage, when the support sleeve 6 is biased by the Ausschubfeder 7 in its extended from the hollow shaft 10 operating position to the outside.
- the inner clamping bushing 9 also has, see FIG. 8a , a support base 91, on which the Ausschubfeder 7 can be supported with its inner end.
- the support stub 6, in contrast, has a spring guide cavity which is open toward the support bottom 91, on the axial outer side of which an inner shoulder spaced outwardly from the support base 91 in the winding shaft axis direction is located on the annular, radial wall section 65, at which the Ausschubfeder 7 with its outer end can support, whereby the support sleeve 6 is pressed with its cone-shaped support body 62 against the provided on the outer sleeve 5 inner cone.
- the molded into the support body guide grooves 64 each have a the groove flanks and the groove bottom forming wall and thus can simultaneously serve on their inside in Radylichtung side as a peripheral enclosure of the Ausschubfeder 7, which leads the Ausschubfeder 7 in the axial direction and buckling of the Ausschubfeder 7 prevented.
- the bearing pin 61 is, as in particular from the FIGS. 3 to 6 emerges, supported on the side bearing 2, 3 on the side part 1 and the visor cap 1 of the vertical awning, which in turn is part of a side bearing module 2, 3, 4, in the Fig. 16 - 19 is shown in detail and is connected to the side part 1 of the box.
- the bearing module 2, 3, 4 in this case has a fixed to the side part 1 bearing plate 3, on which an outer ring 31 of the slide bearing designed as a bearing 2, 3 is formed for the bearing pin 61.
- the bearing pin 61 is received in a bearing inner ring 2 of the sliding bearing 2, 3, which in turn is rotatably received in the bearing outer ring 31 of the bearing plate 3.
- the inner ring 2 is formed as a spherical cap. This means that its outer circumference facing the outer ring 31 has a spherical segment-shaped contour. Accordingly, the inner circumference of the outer ring 31 of the bearing plate 3, which faces the inner ring 2, likewise has a spherical-segment-shaped contour, so that the inner ring 2 is out of the normal plane to the winding shaft axis let swing out, see FIG. 5 ,
- the winding shaft 10 is compressed or the support sleeve 6 pressed by pressure on the winding shaft 10 against the side part 1 in the formed by the two clamping bushes 5, 9 inner bushing 5, 9, so that the winding shaft 10 in the Kugelkalottenlager 2, 3rd Already taken bearing pin 61 can bring in its horizontal position, wherein that opposite end of the winding shaft so on the side part 11 passes over. Then then the force exerted on the winding support 10 and the Ausschubfeder 7 on the support sleeve 6 and the side part 1 pressure can be removed again - see FIG. 4 - By which the Ausschubfeder 7 relaxes and the support stub 6 ausschiebt to the outside and thus the winding shaft austeleskopiert in its operating position between the two side parts 1, 11.
- the support piece 6 with the integrally formed bearing pin 61 can thus be between one in the FIGS. 3 and 4 shown operating position of the winding shaft 10 and a in FIG. 6 shown assembly position in the inner sleeve 5, 9 and thus move in the winding shaft 10.
- In the operating position of the bearing pin 61 is significantly further on the provided with the support sleeve 6 shaft end of the winding shaft 10 forming hollow shaft 10 than in the mounting position.
- Safety slide 4 includes and on the other hand, an axially outwardly facing annular abutment surface provided with the support sleeve 6 shaft end of the winding shaft 10th
- the annular abutment surface is provided on an end face, annular flange or cylindrical projection or stop ring 51 on the outer clamping bush 5, wherein the outer clamping bush 5 is anchored as part of the axle cap module firmly in the winding shaft 10.
- the safety slide 4 is received vertically displaceable on the bearing plate 3 and has a winding shaft 10 in Wickelwellenachscardi out projecting counterstop 41 with a stop surface facing the counter-stop surface.
- a securing position in which the counter-stop pin 41 is with its counter-stop surface at the radial height of the annular abutment surface on the outer clamping sleeve 5, a compression of the rotatably located in the operating position winding shaft 10 and a depression of the carrier nozzle 6 in the inner sleeve 5, 9 in prevented, see FIG. 3 ,
- the safety slide 4 is as indicated by arrow in FIG. 3 indicated height-displaceable added to the bearing plate 3.
- the safety slide 4 out of his in FIG. 3 shown securing position in the in FIG. 4 shown release position is shifted upward, and the counterstop pin 41 moves upward and thus in a height that is outside the radial position of the stop surface having, end stopper ring 51 on the outer clamping sleeve 5, see FIG. 4 , In the secured position - FIG. 3 -
- only a narrow slot between the abutment surface of the end-side annular flange 51 of the outer clamping bush 5 and the counter-stop surface on the counter-stop pin 41 of the safety slide 4 remains.
- the safety slide 4 has a bearing outer ring 31 annular surrounding Verliertechnischsabites 42 with a slightly elongated in the vertical direction opening through which the bearing outer ring 31 protrudes, so that the safety slide 4 is vertically displaceable between its securing position and its release position.
- Verliertechnischsabites 42 On the Verliertechnischsabites 42 the upper side of the winding shaft projecting towards counter-stop pin 41 is formed and underside a vertically downwardly guided operating portion 43.
- the actuating portion 43 has on its underside a 90 ° angle in Wickelwellenachsraum inwardly projecting, horizontally extending operating tab 45 on the installer can grab the locking ring 4 for the purpose of height adjustment.
- the safety slide 4 is slidably received on the bearing plate 3.
- it has on the one hand at the lower end of the actuating portion 43 an opposite to the operating tab 44 projecting locking tab 45, with which he comes to lie in its securing position on a lower side shoulder 32 of the bearing plate 3 and in its release position - see FIG. 4
- the safety slide 4 also engages behind the bearing plate 3 and has on the winding shaft 10 remote from the rear side of the bearing plate 3 two downwardly projecting legs of a locking fork 46, which has a there from embrace the bearing plate 3 projecting locking pin 33.
- FIGS. 12 and 15 on the one hand and 13 and 15a on the other hand, two alternative clamping bushes 8a and 8b, which can be used when a structurally identical clamping element 5, 6, 7, 9 to be used for winding shafts with different diameters. It would also be conceivable to deliver an axle cap module consisting of the tensioning element 5, 6, 7, 9 and a plurality of clamping bushes 8, 8a, 8b, which clamping bushes 8, 8a, 8b all have different outer dimensions, but the same internal dimensions.
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Description
Die Erfindung betrifft gemäß dem Oberbegriff des Anspruchs 10 eine Gebäudeöffnungsverschattungsvorrichtung, insbesondere eine Senkrechtmarkise mit einem auf einer Wickelwelle auf- und abwickelbaren Behang, sowie ein Achskappenmodul für die Wickelwelle gemäß dem Oberbegriff des Anspruchs 1.The invention relates, according to the preamble of
Gebäudeöffnungsverschattungsvorrichtungen der gattungsgemäßen Art, seien es Rollläden, Raffstoren, Jalousien oder Senkrechtmarkisen, weisen eine Wickelwelle auf, auf der ihr Behang oder den Behang betätigende Bänder zum Heben und Ablassen des Behangs auf- bzw. abgewickelt werden. Diese Wickelwellen werden üblicherweise als Hohlwellen gefertigt, in denen ein zum Antrieb dienender Rohrmotor untergebracht sein kann. Bei Rollläden haben die Wickelwellen meist einen sechs- oder acht-kantigen Querschnitt, bei Senkrechtmarkisen dagegen einen runden Querschnitt, wobei üblicherweise eine Kedernut zum Einsetzen eines das Markisentuch haltenden Keders nach innen eingebuchtet ist.Building opening shading devices of the generic type, be it shutters, external venetian blinds, blinds or vertical awnings, have a winding shaft on which their curtain or the curtain-operated bands for raising and lowering the curtain up or are unwound. These winding shafts are usually made as hollow shafts, in which a serving for driving tubular motor can be accommodated. In roller shutters, the winding shafts usually have a six- or eight-sided cross-section, in vertical awnings, however, a round cross-section, usually a Kedernut is indented for inserting a kerosene cloth holding the inside.
Die hohle Wickelwelle einer derartigen Gebäudeöffnungsverschattungsvorrichtung ist dabei an ihren beiden stirnseitigen Enden in entsprechenden, gebäudeseitigen Seitenlagern abgestützt. Diese gebäudeseitigen Halterungen bzw. Seitenlager sind dabei meist an Blendenkappen bzw. Seitenteilen einer Wickelwelleneinhausung, wie z.B. einem Rollladenkasten vorgesehen, können aber z. B. auch an einer Wand einer Mauerleibungshöhlung des Gebäudes angebracht sein. Diese Halterungen bzw. Seitenlager sind dabei meist als Gleitlager ausgebildet, in dessen inneren Lagerringen die Wickelwelle mit ihren beiden stirnseitigen Lagerzapfen eingesteckt ist. Bei rohrmotorbetriebenen Wickelwellen kann ein solches Seitenlager nur auf einer Seite der Wickelwelle vorgesehen sein, wohingegen sich die Wickelwelle auf der anderen Seite über den Rohrmotor abstützt.The hollow winding shaft of such a building opening shading device is supported at its two front ends in corresponding, building-side side bearings. These building-side brackets or side bearings are usually provided on visor caps or side panels of a winding shaft housing, such as a roller shutter box, but can, for. B. also be attached to a wall of a Mauerleibungshöhlung the building. These brackets or side bearings are usually designed as plain bearings, in the inner bearing rings, the winding shaft is inserted with its two end bearing journals. In tubular motor driven winding shafts, such a side bearing can be provided only on one side of the winding shaft, whereas the winding shaft on the other side over the Tubular motor supports.
Bei bekannten Wickelwellen ist dabei eine deckelförmige Achskappe in zumindest ein stirnseitiges, offenes Ende der Wickelwelle eingepresst, an der der Lagerzapfen ausgebildet ist, wobei die Wickelwelle an ihrer anderen Stirnseite über den Rohrmotor abgestützt sein kann oder, bei Gurtantrieb oder dergleichen, ebenfalls eine solche Achskappe aufweisen kann.In known winding shafts while a cap-shaped axle cap is pressed into at least one frontal, open end of the winding shaft on which the bearing pin is formed, wherein the winding shaft may be supported on the other end face on the tubular motor or, in belt drive or the like, also such an axle cap can have.
Um eine einfachere Montage der Wickelwelle zu erlauben gibt es auch sogenannte federnde Achskappen, bei denen das Achskappenmodul eine in die Wickelwelle eingepresste bzw. einpressbare Innenhülse aufweist, in der sich eine Ausschubfeder abstützt, über welche ein das Abstützorgan, also den Lagerzapfen aufweisender Verlängerungskolben bzw. Trägerstutzen in Wickelwellenachsrichtung gegen die Federkraft einpressbar in der Wickelwelle aufgenommen ist. Ein Beispiel für eine Gebäudeöffnungsverschattungsvorrichtung mit einem solchen Achskappenmodul ist der europäischen Patentschrift
Eine Wickelwelle mit einem solchen federnden Ende zeigt auch die europäische Patentanmeldlung
Ausgehend von den bekannten Achskappenmodulen mit federndem Trägerstutzen liegt der vorliegenden Erfindung nun die Aufgabe zugrunde, ein Achskappenmodul für eine Wickelwelle einer Gebäudeöffnungsverschattungsvorrichtung der gattungsgemäßen Art und eine solche Gebäudeöffnungsverschattungsvorrichtung derart weiter zu bilden, dass sich die fertigungseitige Montage der Wickelwelle vereinfachen und kostengünstiger gestalten lässt und ein zuverlässiger Sitz des Achskappenmoduls in der Wickelwelle erreicht wird.Based on the known axle cap modules with resilient support tube, the present invention is based on the object of further developing an axle cap module for a winding shaft of a building opening shading device of the generic type and such a building opening shading device such that the production-side assembly of the winding shaft can be simplified and made cheaper Reliable fit of the axle cap module is achieved in the winding shaft.
Diese Aufgabe wird hinsichtlich des Achskappenmoduls mit den Merkmalen des Anspruchs 1 gelöst, hinsichtlich der Gebäudeöffnungsverschattungsvorrichtung mit den Merkmalen des Anspruchs 10.This object is achieved with regard to the axle cap module with the features of
Bei einem Achskappenmodul für eine hohle Wickelwelle einer Gebäudeöffnungsverschattungsvorrichtung mit einem auf der Wickelwelle auf- und abwickelbaren Behang, welches eine stirnseitig in der Wickelwelle befestigbare Innenbuchse und einen in der Innenbuchse wickelwellenkoaxial aufgenommenen Trägerstutzen zum stirnseitigen Abstützen der Wickelwelle aufweist, ist der Trägerstutzen gattungsgemäß in Wickelwellenachsrichtung zwischen einer nach außen ausgeschobenen Stellung und einer nach innen eingedrückten Stellung verschiebbar und bevorzugt verliersicher gehalten, sowie weiterhin bevorzugt in die nach außen ausgeschobene Stellung vorgespannt.In an axle cap module for a hollow winding shaft of a building opening shading device with a wound on the winding shaft and unwinding curtain, which has an end face in the winding shaft attachable inner bushing and a winding shaft coaxially received in the inner sleeve carrier nozzle for frontally supporting the winding shaft, the support nozzle is generic in Wickelwellenachsrichtung between an outwardly pushed-out position and an inwardly depressed position slidably and preferably held captive, and further preferably biased in the outwardly pushed-out position.
Erfindungsgemäß ist die Innenbuchse nun in einer stirnseitig in die Wickelwelle einsteckbaren und über die Innenbuchse zumindest bereichsweise radial nach außen ausspreizbaren Klemmbuchse aufgenommen. Die Innenbuchse ist dabei aus zwei miteinander verschraubbaren Spannbuchsen gebildet, die durch Anziehen der Verschraubung in Wickelwellenachsrichtung auf einander zu und durch Lösen der Verschraubung in Wickelwellenachsrichtung von einander weg bewegbar sind. Weiterhin erfindungsgemäß weist die Klemmbuchse zumindest einen sich innenumfangsseitig konisch verjüngenden Keilabschnitt auf. Zumindest eine, bevorzugt die innere Spannbuchse weist ferner einen zur Wickelwellenachse konzentrischen, sich zur anderen Spannbuchse hin außenumfangsseitig konisch verjüngenden Gegenkeilabschnitt auf, der dem innenumfangsseitigen Keilabschnitt der Klemmbuchse zugeordnet ist. Über die Verschraubung der beiden Spannbuchsen und die Verkeilung der Klemmbuchse mit der durch die beiden Spannbuchsen gebildeten Innenbuchse erfolgt die Befestigung des Achskappenmoduls in der Wickelwelle somit nach Art eines Keilgetriebes, wobei die zumindest eine, bevorzugt die innere Spannbuchse beim Anziehen der Verschraubung mit ihrem Gegenkeilabschnitt gegen den Keilabschnitt der Klemmbuchse drückt und dadurch das Achskappenmodul in der Wickelwelle verklemmt und sich die Verklemmung des Achskappenmoduls in der Wickelwelle beim Lösen der Verschraubung ebenfalls löst.According to the invention, the inner bush is now accommodated in a clamping bush which can be inserted into the winding shaft at the end face and which can be spread radially outward over the inner bushing at least in regions. The inner sleeve is formed from two screwed together clamping bushes which are movable by tightening the screw in winding shaft axis direction to each other and by loosening the screw in winding shaft axis of each other away. Furthermore, according to the invention, the clamping bush has at least one wedge section which conically tapers on the inner circumference side. At least one, preferably the inner clamping bush also has a concentric to the winding shaft axis, to the other clamping bush towards the outer peripheral side conically tapered counter-wedge portion which is assigned to the inner peripheral side wedge portion of the clamping bush. About the screw connection of the two clamping bushes and the wedging of the clamping bush with the inner bushing formed by the two clamping bushes attachment of the axle cap module in the winding shaft thus takes place in the manner of a wedge gear, wherein the at least one, preferably the inner clamping bush when tightening the screw with its counterpart wedge against presses the wedge portion of the clamping bush and thereby jammed the Achskappenmodul in the winding shaft and the jamming of the axle cap module in the winding shaft when loosening the screw also dissolves.
Damit kann das bisher durch Einschlagen mit einem Hammer oder mit Maschinenunterstützung erfolgende Einpressen des Achskappenmoduls in die Wickelwelle entfallen. Außerdem können einzelne Teile des Achskappenmoduls aus günstigen Werkstoffen und/oder größeren Toleranzen gefertigt werden und müssen nicht mehr auf einen so hohen Einpressdruck hin ausgelegt werden, wie das bisher der Fall war. Durch die konische Ausbildung der Verkeilung des Keilgetriebes längs der Wickelwellenachse gelingt dabei eine gute Selbstzentrierung der Innenbuchse der Klemmbuchse, wobei über die Verschraubung der beiden die Innenbuchse bildenden Spannbuchsen die Betätigung eines solcher Art ausgebildeten Keilgetriebes und das Einsetzen des Trägerstutzens in die durch die beiden Spannbuchsen gebildete Innenbuchse überhaupt erst möglich wird.Thus, the previously taking place by striking with a hammer or with machine support pressing the axle cap module can be omitted in the winding shaft. In addition, individual parts of the axle cap module can be made of low-cost materials and / or larger tolerances and no longer have to be designed for such a high press-in pressure as was previously the case. The conical design of the wedging of the wedge gear along the winding shaft axis manages a good self-centering of the inner sleeve of the clamping bush, wherein on the screw of the two inner sleeve forming clamping bushes actuation of such a type wedge gear and the insertion of the carrier nozzle formed in the two clamping bushes Inner bush is only possible.
Für den Konuswinkel des spannhülsenseitigen Keilabschnitts bzw. des klemmbuchsenseitigen Gegenkeilabschnitts hat sich dabei ein Bereich von >3° bis < 25°, bevorzugt >8° bis < 12° herausgestellt, insbesondere wenn die Klemmbuchse aus Kunststoff und die den Keilabschnitt aufweisende Spannbuchse aus einem Metall wie Zinkdruckguss bestehen.A range of> 3 ° to <25 °, preferably> 8 ° to <12 ° has been found for the cone angle of the collet-side wedge section or the clamping bush-side counter wedge section, in particular if the clamping bush made of plastic and the clamping bush comprising the wedge section are made of a metal like zinc diecasting.
Vorteilhaft weist dabei lediglich eine der beiden Spannbuchsen einen Keilabschnitt auf und wird dadurch beim Verdrehen der anderen Spannbuchse an der Klemmbuchse gegengehalten, während die andere, verdrehbare Spannbuchse eine wesentlich kleinere Anlagefläche an der Klemmbuchse aufweist. Die dort entsprechend wesentlich geringere Reibung führt dazu, dass die mit dem konischen Keilabschnitt versehene Spannbuchse gegengehalten wird, während die andere, beispielsweise mit einer radialen Fläche an der Klemmbuchse anliegende Spannbuchse verdrehbar ist. An der radialen Fläche, mit der diese andere Spannbuchse an der Klemmbuchse anliegt könnte natürlich trotzdem ein kleinerer Zentrierkonus oder dergleichen vorgesehen sein, ohne die Betätigbarkeit der Verschraubung der beiden Spannbuchsen zu gefährden.Advantageously, only one of the two clamping bushes has a wedge portion and is thereby held against the clamping bush when the other clamping bushing is rotated, while the other, rotatable clamping bushing has a substantially smaller contact surface on the clamping bush. The correspondingly much lower friction causes the clamping sleeve provided with the conical wedge portion to be held against, while the other, for example, with a radial surface on the clamping sleeve fitting clamping sleeve is rotatable. Of course, nevertheless, a smaller centering cone or the like may be provided on the radial surface with which this other clamping bush rests on the clamping bush, without jeopardizing the operability of the screw connection of the two clamping bushes.
Ist die innere Spannbuchse mit dem Keilabschnitt versehen und die äußere Spannbuchse mit der demgegenüber wesentlich kleineren Anlagefläche an der Klemmbuchse, so ist zudem sichergestellt, dass die äußere Spannbuchse immer auf der gewünschten axialen Position bleibt, wohingegen sich die innere Spannbuchse beim Anziehen der Verschraubung in Axialrichtung bewegt, insbesondere wenn sich die Klemmbuchse stirnseitig an der Wickelwelle abstützt.If the inner clamping bush is provided with the wedge portion and the outer clamping bush with the substantially smaller contact surface on the clamping bush, then it is also ensured that the outer clamping bush always remains at the desired axial position, whereas the inner clamping bushing when tightening the screw connection in the axial direction moves, especially when the clamping bush is supported on the front side of the winding shaft.
Zum stirnseitigen Abstützen an der Wickelwelle kann die Klemmbuchse einen Ringabschnitt mit einem ringförmig radial nach außen überkragenden Anschlagsflansch aufweisen, der einen stirnseitigen Anschlag bildet, bis zu dem die Klemmbuchse in die Wickelwelle eingeschoben werden kann.For frontal support on the winding shaft, the clamping bush may have a ring portion with an annular radially outwardly projecting stop flange, which forms a frontal stop, to which the clamping bush can be inserted into the winding shaft.
Dabei ist zur Verschraubung der beiden Spannbuchsen eine, bevorzugt die äußere Spannbuchse an ihrem der anderen Spannbuchse zugewandten Ende mit einem zur Klemmbuchse koaxialen außenzylindrischen Oberflächenabschnitt versehen, welcher ein eingeformtes Außengewinde aufweist, und die andere, bevorzugt die innere Spannbuchse an ihrem der einen, bevorzugt die äußeren Spannbuchse zugewandten Ende mit einem entsprechenden, zur Klemmbuchse koaxialen, innenzylindrischen Oberflächenabschnitt, der ein entsprechendes eingeformtes Innengewinde aufweist. Die beiden Spannbuchsen werden also direkt miteinander verschraubt, wodurch zusätzliche Bauteile eingespart werden können, wobei der Durchmesser der Gewindeabschnitte so groß gewählt werden kann, dass der Trägerstutzen in einem Hohlraum aufgenommen sein kann, der von den Gewindeabschnitten umgeben ist.It is for screwing the two clamping bushes one, preferably the outer clamping bush at its end facing the other clamping bushing provided with a coaxial to the clamping outer cylindrical surface portion having a molded external thread, and the other, preferably the inner clamping bushing at one of them, preferably the outer clamping bushing facing end with a corresponding, coaxial to the clamping sleeve, inner cylindrical surface portion having a corresponding molded internal thread. The two clamping bushes are thus bolted directly to each other, whereby additional components can be saved, wherein the diameter of the threaded portions can be chosen so large that the support sleeve can be accommodated in a cavity which is surrounded by the threaded portions.
Ist der Trägerstutzen dabei mit der einen Spannbuchse also bevorzugt mit der äußeren Spannbuchse um die Wickelwellenachse drehmomentübertragend verbunden, also in dieser Spannbuchse axial verschiebbar geführt, so kann die Verschraubung der beiden Spannbuchsen über den Trägerstutzen betätigt werden, wenn der Trägerstutzen einen Angriffsabschnitt aufweist, über den die eine bevorzugt die äußere Spannbuchse, in der der Trägerstutzen axial verschieblich geführt ist, von einem Monteur verdrehbar ist. Die den Trägerstutzen aufnehmende Spannbuchse ist also vorteilhaft die verdrehbare Spannbuchse und weist daher keinen oder zumindest einen kürzeren Keilabschnitt als die andere, also bevorzugt die innere Spannbuchse auf, die mit dem Trägerstutzen nicht drehmomentübertragend, sondern beim Betätigen der Verschraubung über ihren Keilabschnitt am Gegenkeilabschnitt der Klemmbuchse gegengehalten wird.Is the support tube with the one clamping bush so preferably connected to the outer bushing torque transmitting to the winding shaft axis, that is guided axially displaceable in this clamping bush, the screwing of the two clamping bushes can be actuated via the support sleeve when the support sleeve has an engaging portion on the one preferred, the outer clamping bush, in which the support sleeve is axially displaceable, is rotatable by a fitter. The the carrier neck receiving clamping bush is therefore advantageous the rotatable clamping bush and therefore has no or at least a shorter wedge portion than the other, so preferably the inner clamping bushing, which is not torque-transmitting with the support sleeve, but held against the wedge portion on the counter-wedge portion of the clamping bush when pressing the screw.
Vorteilhaft weist dabei also lediglich die innere Spannbuchse den sich in Wickelwellenachsrichtigung nach außen hin außenumfangsseitig verjüngenden Keilabschnitt auf. Entsprechend braucht auch die Klemmbuchse lediglich einen entsprechenden, sich innenumfangsseitig in Wickelwellenachsrichtgung nach außenhin verjüngendenden Gegenkeilabschnitt. Damit die Klemmbuchse beim Einschrauben der äußeren Spannbuchse in die innere Spannbuchse mit ihrem Gegenkeilabschnitt auch auf den konischen Keilabschnitt der inneren Spannbuchse aufgeschoben wird weist die äußere Spannbuchse dabei vorteilhaft einen von ihrem Außenumfang nach radial außen bevorzugt ringförmig vorstehenden Anschlag auf, der auf eine ringförmige Gegenanschlagsfläche auf der in Wickelwellenachsrichtung nach außen gewandten Stirnseite der Klemmbuchse drückt.Advantageously, therefore, only the inner clamping bush has the wedge section tapering outward in the winding shaft axis direction toward the outside on the outer peripheral side. Accordingly, the clamping bush only needs a corresponding, on the inner peripheral side in Wickelwellenachsrichtgung outwardly tapering counter-wedge portion. Thus, the clamping bush is pushed onto the conical wedge portion of the inner clamping bush when screwing the outer bushing into the inner clamping bushing with its counter-wedge portion, the outer clamping bush advantageously has a radially outwardly from its outer circumference radially outwardly projecting stop on an annular counter-attack surface the facing in Wickelwellenachsrichtung outward end face of the clamping bush presses.
Die Klemmbuchse kann einen geometrischen relativ einfachen und aus Kunststoff hergestellbaren Aufbau haben, mit einem Ringabschnitt, von dem eine wickelwellenkoaxial angeordnete Mehrzahl von Spreizsegmenten entweder in beide Wickelwellenachsrichtungen, oder im Hinblick auf die vorstehend angesprochene, vorteilhafte Weiterbildung nur in der Wickelwellenachsrichtung nach innen vorspringt. Die Mehrzahl von Spreizsegmenten kann dann den Gegenkeilabschnitt der Klemmbuchse bilden, wobei jedes Spreizsegment innenumfangsseitig eine im wesentlichen innenkonussegmentförmige Oberfläche aufweist. Vorteilhaft ist der Ringabschnitt dabei geschlitzt, so dass sich die Klemmbuchse insgesamt an den Innenumfang der Wickelwelle anpassen kann, an dem sie anliegen soll, welcher durch fertigungsseitige Toleranzen bedingt in gewissen Maßen schwanken kann.The clamping bush can have a geometrically relatively simple structure that can be produced from plastic, with a ring section from which a winding shaft coaxially arranged plurality of expansion segments protrudes inward either in both winding shaft axis directions or in view of the above-mentioned advantageous development only in the winding shaft axial direction. The plurality of expansion segments can then form the counter-wedge portion of the clamping bush, wherein each expansion segment on the inner peripheral side has a substantially inner cone segment-shaped surface. Advantageously, the ring portion is slotted so that the clamping sleeve can be adapted to the inner circumference of the winding shaft, on which it should rest, which can vary due to tolerances caused by manufacturing tolerances in certain dimensions.
Die erfindungsgemäß vorgesehene oder wie vorstehend beschrieben weitergebildete Klemmbuchse bietet dabei jedoch nicht nur für fertigungsbedingte Toleranzen am Innendurchmesser der Wickelwelle Vorteile, sondern auch im Hinblick darauf, dass im Gebäudeöffnungsverschattungsbereich Wickelwellen mit verschiedenem Innendurchmesser und verschiedener Innenquerschnittsform zum Einsatz kommen, die alle mit einem bis auf die Klemmbuchse gleichen Achskappenmodul versehen werden können, was fertigungsseitig Kostenvorteile bringt. Die Klemmbuchse kann dabei als Adapter unterschiedliche umfangsseitige Außenabmaße bzw. -konturen annehmen, so lange die umfangsseitigen Innenabmaße bzw. -kontur gleich bleibt. Vorteilhaft wird das Achskappenmodul daher mit einer als Adaptersatz für unterschiedliche Wickelwellen dienenden Mehrzahl von Klemmbuchsen ausgeliefert, wobei die Mehrzahl von Klemmbuchsen unterschiedliche Außenabmaße und/oder -konturen aufweist, aber gleiches Innenabmaß und -kontur.The inventively provided or further developed as described above clamping bush offers advantages not only for manufacturing tolerances on the inner diameter of the winding shaft, but also in view of the fact that in the building opening shading winding waves with different inner diameter and different inner cross-sectional shape are used, all with one to the Clamping bush same axle cap module can be provided, which brings manufacturing cost advantages. The clamping bush can assume as an adapter different peripheral outer dimensions or contours, as long as the circumferential inner dimensions or contour remains the same. Advantageously, the axle cap module is therefore delivered with a plurality of clamping bushes serving as an adapter set for different winding shafts, the plurality of clamping bushes having different outside dimensions and / or contours, but the same inside dimension and contour.
So haben Wickelwellen für Rollläden üblicherweise eine achteckige Innenquerschnittsform. Entsprechend weist eine für eine Rolladenwickelwelle vorgesehene Klemmbuchse insgesamt oder zumindest bis auf einen am Ringabschnitt umlaufend radial nach außen überkragenden Anschlagsflansch eine auf einer Mantelfläche eines geraden Prismas mit mehreckigem, insbesondere achteckigem Querschnitt liegende Außenumfangskontur auf, wobei jedes der Spreizsegmente eine plane Außenumfangsoberfläche haben kann, wobei bevorzugt eine der Mehrzahl an Ecken enstprechende Mehrzahl an Spreizsegmenten vorgesehen ist.For example, winding shafts for shutters usually have an octagonal internal cross-sectional shape. Correspondingly, a clamping bushing provided for a roller shutter winding shaft has a circumferential outer flange projecting circumferentially radially outward on the annular portion and has an outer peripheral contour lying on a lateral surface of a straight prism with a polygonal, in particular octagonal cross-section, wherein each of the expansion segments can have a planar outer peripheral surface one of the plurality of corners corresponding to the plurality of expansion segments is preferably provided.
Wickelwellen für Senkrechtenmarkisen haben dagegen meist einen kreisrunden Innenquerschnitt, wobei die Einfassung einer einen Tuchkeder aufnehmenden Kedernut nach innen hin vorspringt. Eine für eine solche Senkrechtmarkisenwickelwelle vorgesehene Klemmbuchse weist daher insgesamt oder zumindest bis auf einen am Ringabschnitt ringförmig radial nach außen überkragenden Anschlagsflansch eine auf einer zylindrischen Mantelfläche liegende Außenumfangskontur auf, in welcher eine wickelwellenachsparallele Ausnehmung für einen entsprechenden, innenumfangsseitig radial nach innen vorstehenden Mitnehmer der Wickelwelle ausgenommen ist. Der Mitnehmer kann dabei von der Kedernuteinfassung gebildet werden. Die Spreizsegmente können eine zylindersegmentförmige Außenumfangsoberfläche aufweisen, wobei dann ein der dem Mitnehmer zugeordneten Position entsprechendes Spreizsegment fehlt.Winding shafts for vertical awnings, on the other hand, usually have a circular inner cross section, with the edge of a piping spring receiving a piping groove projecting inwards. A clamping bushing provided for such a vertical awning winding shaft therefore has a circumferential outer contour lying on a cylindrical outer surface, in total or at least up to a stop flange projecting annularly radially outwards on the annular portion, in which a winding shaft-parallel Recess for a corresponding, inner peripheral side radially inwardly projecting driver of the winding shaft is excluded. The driver can be formed by the Kedernuteinfassung. The expansion segments may have a cylinder-segment-shaped outer peripheral surface, in which case a corresponding to the driver associated position spreading segment is missing.
Weitere vorteilhafte Weiterbildungen werden an Hand der in den beiliegenden Figuren gezeigten Ausführungsform der Erfindung näher erläutert. Es zeigen:
Figur 1- eine an ihren beiden Stirnseiten jeweils an einem Seitenteil eines nicht dargestellten Kastens gelagerte Wickelwelle einer Gebäudeöffnungsverschattungsvorrichtung gemäß einer Ausführungsform der Erfindung;
Figur 2- ein Teilhorizontalschnitt entlang der Linie II-II in
am inFigur 1 linken, federnden Ende der Wickelwelle;Figur 1 - Figuren 3 - 6
- Vertikalschnittansichten des in
gezeigten Achskappenmoduls in verschiedenen Montagesituationen am zugeordneten SeitenteilFigur 2 - der
- Gebäudeöffnungsverschattungsvorrichtung;
Figur 7- eine Schnittansicht einer äußeren Spannbuchse des in den
gezeigten Achskappenmoduls;Figuren 2 bis 6 Figur 8a und 8 b- eine innere Spannbuchse des in den
gezeigten Achskappenmoduls, einmal im Schnitt und einmal in Draufsicht von der Wickelwellenstirnseite her;Figuren 2 bis 6 Figur 9- einen Trägerstutzen des in den
gezeigten Achskappenmoduls in perspektivischer Ansicht;Figuren 2 bis 6 Figur 10- eine im Wesentlichen der
entsprechende Einzelansicht des Achskappenmoduls, wobei jedoch das Seitenteil mit dem Lager weggelassen wurde und mehr Einzelheiten des Achskappenmoduls gezeigt sind;Figur 2 Figur 11 und 14- eine Klemmbuchse des in
den Figuren 2 gezeigten Achskappenmoduls, einmal in einer perspektivischen Ansicht und einmal in Seitenansicht von der in die Wickelwelle gesteckten, inneren Seite her;bis 6 und 10 Figur 12 und 15- einerseits
- und Figur 13 und 15a
- andererseits zwei weitere Klemmbuchsen in
den Figuren 11 und 14 entsprechenden Ansichten, welche als Adapter für Wickelwellen mit größerem Durchmesser fungieren können; - Figur 16
- eine Seitenansicht eines Seitenlagermoduls an dem die in
gezeigte Wickelwelle mit dem inFigur 1den Figuren 2 gezeigten Achskappenmodul abgestützt ist, in Stirnansicht von der Wickelwelle her gesehen;bis 6 und 10 - Figur 17
- das in
Figur 16 gezeigte Seitenlagermodul in einer um 90° gedrehten Seitenansicht; - Figuren 18 und 19
- das in den
Figuren 16 und 17 gezeigte Seitenlagermodul von der wickelwellenabgewandten Seite aus gesehen in einer gegen Einfedern der Wickelwelle sichernden Sicherungsstellung (Figur 18 ) und in einer das Einfedern der Wickelwelle zulassenden Montagestellung (Figur 19 ).
- FIG. 1
- a winding shaft of a building opening shading device mounted at its two end faces in each case on a side part of a box, not shown, according to an embodiment of the invention;
- FIG. 2
- a partial horizontal section along the line II-II in
FIG. 1 on inFIG. 1 left, resilient end of the winding shaft; - Figures 3 - 6
- Vertical sectional views of in
FIG. 2 shown Achskappenmoduls in different mounting situations on the associated side panel - of the
- Building opening shading device;
- FIG. 7
- a sectional view of an outer clamping bush of the in the
FIGS. 2 to 6 shown axle cap module; - FIGS. 8a and 8b
- an inner clamping bush in the
FIGS. 2 to 6 shown Achskappenmoduls, once in section and once in plan view of the winding shaft end side ago; - FIG. 9
- a carrier neck of the in the
FIGS. 2 to 6 shown Achskappenmoduls in perspective view; - FIG. 10
- a substantially the
FIG. 2 corresponding single view of the axle cap module, but with the side part has been omitted with the bearing and more details of the Achskappenmoduls are shown; - FIGS. 11 and 14
- a clamping bush in the
FIGS. 2 to 6 and 10 shown Achskappenmoduls, once in a perspective view and once in side view of the plugged into the winding shaft, inner side; - FIGS. 12 and 15
- on the one hand
- and FIGS. 13 and 15a
- On the other hand, two more clamping bushes in the
FIGS. 11 and 14 corresponding views, which can act as an adapter for winding shafts with a larger diameter; - FIG. 16
- a side view of a side bearing module on which the in
FIG. 1 shown winding shaft with the in theFIGS. 2 to 6 and 10 shown axle cap module is supported, viewed in front view of the winding shaft ago; - FIG. 17
- this in
FIG. 16 shown side bearing module in a rotated by 90 ° side view; - FIGS. 18 and 19
- that in the
FIGS. 16 and 17 shown side bearing module seen from the side facing away from the winding shaft in a secure against compression of the winding shaft securing position (FIG. 18 ) and in a compression of the winding shaft permitting mounting position (FIG. 19 ).
Zunächst wird Bezug genommen auf die
Das federnde Achskappenmodul weist, wie
Der Trägerstutzen 6 bildet zusammen mit den beiden Spannbuchsen 5, 9 und der Ausschubfeder 7 ein Spannelement 5, 6, 7, 9, welches durch eine mit 8 bezeichnete Klemmbuchse geführt ist, bzw. die Klemmbuchse 8 durchgreift und über welches die Klemmbuchse 8 in der Wickelwelle 10 verklemmbar ist. Die durch die beiden Spannbuchsen 5, 9 gebildete Innenbuchse 5, 9 bildet zusammen mit der Klemmbuchse 8, durch die sie hindurchgeführt ist, eine Buchsenanordnung 5, 8, 9.The
Die äußere Spannbuchse 5 weist dabei, wie in
Dabei weist die äußere Spannbuchse 5 einen nach radial außen vorstehenden Anschlagsflansch 52 auf und die innere Spannbuchse 9 einen sich in Wickelwellenachsrichtung von innen nach außen konusförmig verjüngenden Außenumfangsabschnitt bzw. Keilabschnitt 92 (siehe
Die innenumfangsseitigen Oberflächen der Gegenkeilsegmente 83 verlaufen auf einer der Konusform des Keilabschnitts 92 der inneren Spannbuchse 9 entsprechenden Konuskontur und können sich aufgrund der durch Segmentzwischenräume 85 unterteilten Fächerstruktur aufspreizen, wenn die Verschraubung der beiden Klemmbuchsen 5, 9 angezogen wird und sich die beiden Klemmbuchsen dann aufeinander zubewegen und dadurch über den radial vorspringenden Anschlagsflanschring 52 an der äußeren Klemmbuchse 5 einerseits und den konusförmigen Keilabschnitt 92 an der inneren Spannbuchse 9 andererseits einen nach radial außen gerichteten Druck auf die Gegenkeilsegmente 83 der Klemmbuchse 8 ausüben.The inner peripheral side surfaces of the
Das Spannelement 5, 6, 7, 9 und die Klemmbuchse 8 bilden somit ein durch Anziehen oder Lösen der Verschraubung der beiden Spannbuchsen 5, 9 betätigbares Keilgetriebe, über welches sich die Klemmbuchse 8 gegen den Innenumfang der hohlen Wickelwelle 10 drücken lässt, wodurch sich das Achskappenmodul insgesamt in der Hohlwelle 10 verankern lässt.The clamping
Dabei wird über verschiedene Maßnahmen sichergestellt, dass bei einem Verdrehen der äußeren Spannbuchse 5 die innere Spannbuchse 9 drehfest gehalten wird, so dass sich die Verschraubung der beiden Spannbuchsen 5, 9 überhaupt erst betätigen lässt. Zum Einen ist der Keilwinkel an dem konischen Keilabschnitt 92 der inneren Spannbuchse 9 und an dem durch die Gegenkeilsegmente 83 gebildeten Gegenkeilabschnitt 82 der Klemmbuchse 8 recht klein gewählt, im dargestellten Beispiel ca. 10°, wobei sich die Keil- bzw. Gegenkeilabschnitte 82, 83 über eine relativ große axiale Länge erstrecken und nahezu um den gesamten Umfang herum. Dadurch wird ein nur nahezu selbsthemmender Reibschluss zwischen der inneren Spannbuchse 9 und der Klemmbuchse 8 erreicht. Darüber hinaus stehen, siehe
Wie
Die äußere, verdrehbare Spannhülse 5 wird dabei über den Trägerstutzen 6 betätigt, welcher in
An den Lagerzapfenabschnitt 61 schließt in Wickelwellenachsrichtung innen über einen ringförmigen, radialen Wandabschnitt 65 ein Trägerkörper 62 an, welcher einen sich nach axial innen konisch aufweitenden Außenumfang aufweist. Darin ist eine Mehrzahl über den Umfang verteilter, insgesamt konzentrisch zur Wickelwellenachse angeordneter und längs der Wickelwellenachse verlaufender Führungsnuten 75 nach radial innen eingeformt, der eine entsprechende Mehrzahl von innenumfangsseitig in Radialrichtung nach innen vorstehender Finnen 54 an der äußeren Klemmbuchse 5 zugeordnet ist, wobei sich die Finnen 54 entsprechend ebenfalls wickelwellenkoaxial erstrecken, siehe
Die äußere Spannbuchse 5 weist dabei entsprechend der Konusform des Trägerkörpers 64 innenumfangsseitig eine sich in Wickelwellenachsrichtung nach außen hin konisch verjüngende Innenumfangsoberfläche auf, von der die Finnen 54 vorstehen. Dadurch ergibt sich eine gute Selbstzentrierung des Trägerstutzens 6 in der äußeren Spannbuchse 5 und eine spielfreie Lagerung, wenn der Trägerstutzen 6 über die Ausschubfeder 7 in seine aus der Hohlwelle 10 ausgefahrene Betriebsstellung nach außen hin vorgespannt wird.The
Die innere Spannbuchse 9 weist ferner, siehe
Der Lagerzapfen 61 ist dabei, wie insbesondere aus den
Das Lagermodul 2, 3, 4 weist dabei eine an dem Seitenteil 1 befestigte Lagerplatte 3 auf, an der ein Außenring 31 des als Gleitlager ausgebildeten Lagers 2, 3 für den Lagerzapfen 61 ausgebildet ist. Der Lagerzapfen 61 ist dabei in einem Lagerinnenring 2 des Gleitlagers 2, 3 aufgenommen, der wiederum in dem Lageraußenring 31 der Lagerplatte 3 drehbar aufgenommen ist.The
Der Innenring 2 ist dabei als Kugelkalotte ausgebildet. Das heißt, dass sein dem Außenring 31 zugewandter Außenumfang eine kugelsegmentförmige Kontur aufweist. Entsprechend weist der dem Innenring 2 zugewandte Innenumfang des Außenrings 31 der Lagerplatte 3 ebenfalls eine kugelsegmentförmige Kontur auf, so dass sich der Innenring 2 aus der Normalebene zur Wickelwellenachse herausschwenken lässt, siehe
Dies ist im Hinblick auf die Montage der Wickelwelle 10 vorteilhaft, welche bei wie in
Der Trägerstutzen 6 mit dem angeformten Lagerzapfen 61 lässt sich also zwischen einer in den
Um zu verhindern, dass die Wickelwelle 10 während des Betriebs unerwünscht zusammengedrückt wird und dadurch aus ihrer Lagerung an den beiden stirnseitigen Seitenteilen 1, 11 herausfällt, ist dabei eine Sicherungseinrichtung 4, 5 vorgesehen, die einerseits einen an dem Seitenlagermodul 2, 3, 4 vorgesehenen Sicherungsschieber 4 umfasst und andererseits eine axial nach außen weisende, ringförmige Anschlagsfläche am mit dem Trägerstutzen 6 versehenen Wellenende der Wickelwelle 10.In order to prevent that the winding
Die ringförmige Anschlagsfläche ist dabei an einem stirnseitigen, Ringflansch bzw. zylindischen Vorsprung oder Anschlagsring 51 an der äußeren Spannbuchse 5 vorgesehen, wobei die äußere Spannbuchse 5 als Teil des Achskappenmoduls fest in der Wickelwelle 10 verankert ist.The annular abutment surface is provided on an end face, annular flange or cylindrical projection or stop
Der Sicherungsschieber 4 ist dabei höhenverschiebbar an der Lagerplatte 3 aufgenommen und weist einen zur Wickelwelle 10 in Wickelwellenachsrichtung hin vorspringenden Gegenanschlagszapfen 41 mit einer der Anschlagsfläche zugewandten Gegenanschlagsfläche auf. In einer Sicherungsstellung, in der sich der Gegenanschlagszapfen 41 mit seiner Gegenanschlagsfläche auf radialer Höhe der ringförmigen Anschlagsfläche an der äußeren Spannbuchse 5 befindet, wird ein Zusammendrücken der drehbar in Betriebsstellung befindlichen Wickelwelle 10 bzw. ein Eindrücken des Trägerstutzens 6 in die Innenhülse 5, 9 hinein verhindert, siehe
Der Sicherungsschieber 4 ist dabei wie durch Pfeil in
Der Sicherungsschieber 4 hat dabei einen den Lageraußenring 31 ringförmig umgebenden Verliersicherungsabschnitt 42 mit einer in vertikaler Richtung etwas lang gezogenen Öffnung, durch die der Lageraußenring 31 ragt, so dass der Sicherungsschieber 4 zwischen seiner Sicherungsstellung und seiner Freigabestellung höhenverschiebbar ist. An den Verliersicherungsabschnitt 42 ist oberseitig der zur Wickelwelle hin vorstehende Gegenanschlagzapfen 41 angeformt und unterseitig ein vertikal nach unten geführter Betätigungsabschnitt 43. Der Betätigungsabschnitt 43 weist an seiner Unterseite eine im 90° Winkel in Wickelwellenachsrichtung nach innen hin vorspringende, horizontal verlaufende Bedienungslasche 45 auf, an der der Monteur den Sicherungsring 4 zwecks Höhenverstellung greifen kann.The
Der Sicherungsschieber 4 ist dabei verschiebbar auf der Lagerplatte 3 aufgenommen. Dazu weist er einerseits am unteren Ende des Betätigungsabschnitts 43 eine entgegengesetzt zur Bedienungslasche 44 abstehende Rastlasche 45 auf, mit der er in seiner Sicherungsstellung an einer unterseitigen Schulter 32 der Lagerplatte 3 zu liegen kommt und in seiner Freigabestellung - siehe
Änderungen und Modifikationen der gezeigten Ausführungsform sind möglich, ohne den Rahmen der Erfindung zu verlassen.Changes and modifications of the illustrated embodiment are possible without departing from the scope of the invention.
So zeigen die
Claims (10)
- An axis cap module for a hollow winding shaft (10) of a building opening shading device with a curtain for winding and unwinding on the winding shaft (10), comprising:an inner bushing (5, 9) fastenable on the end side of the winding shaft (10), and a support socket (6) received in the inner bushing (5, 9) coaxially to the winding shaft, for support of the winding shaft (10) on the end side,which support socket (6) in the direction of the winding shaft axis is held shiftable and preferably with captive fastening between a position extended outwardly and a position retracted inwardly, with the support socket (6) being preferably pretensioned into the position extended outwardly,characterized in thatthe inner bushing (5, 9) is received in a clamping sleeve (8) insertable into the winding shaft (10) on the end side and at least partially and radially expandable outwardly via the inner bushing (5, 9), and comprises two clamping bushings (5, 9) screwable with each other, which by tightening the screwing in the direction of the winding shaft axis can be moved towards each other and by releasing the screwing can be moved away from each other,the clamping sleeve (8) comprises at least one wedge section (82) concentric with the winding shaft axis and conically tapering on the inner circumference, and at least one clamping bushing, preferably the inner clamping bushing (9), comprises a counter-wedge section (92) conically tapering on the outer circumference towards the other clamping bushing (5), in order that the at least one clamping bushing (9), when tightening the screwing, with its counter-wedge section (92) presses against the wedge section (82) of the clamping sleeve (8), and thus the axis cap module is stuck in the winding shaft (10) and is released from the winding shaft (10) when the screwing is released.
- The axis cap module according to claim 1, characterized in that only the inner clamping bushing (9) comprises the wedge section (92) outwardly tapering on the outer circumference in the direction of the winding shaft axis, and the clamping sleeve (8) only a corresponding counter-wedge section (82) outwardly tapering on the inner circumference in the direction of the winding shaft axis, with the clamping sleeve (8) on its end side facing outwardly in the direction of the winding shaft axis comprising an annular counter-stop surface to which is allocated a stop (52) projecting radially outwardly and preferably annularly from the outer circumference of the outer clamping bushing (5).
- The axis cap module according to claim 1 or 2, characterized in that the clamping sleeve (8) is comprised of a particularly slotted annular section (81) from which projects a plurality of spreading segments (83) arranged coaxially to the winding shaft in at least one direction of the winding shaft axis, which forms the at least one counter-wedge section (82) of the clamping sleeve (8), with each spreading segment (83) comprising on its inner circumference a surface at least substantially formed as an internal cone segment.
- The axis cap module according to claim 3, characterized in that the clamping sleeve (8) comprises only spreading segments (83), the free ends of which project inwardly in the direction of the winding shaft axis, and with the annular section (81) on the side facing outwardly in the direction of the winding shaft axis comprising the annular counter-stop surface.
- The axis cap module according to claim 1, 2 or 3, characterized in that the cone angle of the wedge section (92) on the side of the clamping bushing and the counter-wedge section (82) on the side of the clamping sleeve is >3° and <25°, preferably >8° and <12°, with the clamping sleeve (8) preferably being made from plastic material and the clamping bushings (9) being preferably made from zinc die-cast.
- The axis cap module according to any one of the preceding claims, characterized in that for screwing of the two clamping bushings (5, 9), one clamping bushing, preferably the outer clamping bushing (5), on its end facing towards the other clamping bushing (9) comprises an outer-cylindrical surface section coaxially with the clamping sleeve (8) with a moulded-in external thread (53), and the other, preferably the inner clamping bushing (9) on its end facing towards the one clamping bushing (5) a corresponding inner-cylindrical surface section coaxially with the clamping sleeve (8) with a moulded-in internal thread (93), with the support socket (6) being in connection with the one clamping bushing (5), preferably the outer clamping bushing (5), in a torque transmitting manner around the axis of the winding shaft and comprising an attachment section (63) via which said clamping bushing (5) can be twisted by a mechanic in order to tighten or to release the screwing of the two clamping bushings (5, 9), which twistable clamping bushing (5) has no or at least a shorter wedge section (92) than the other, preferably the inner clamping bushing (9).
- The axis cap module according to any one of claims 3 to 6, characterized in that the clamping sleeve (8) comprises, in total or at least except for an abutment flange cantilevering on the annular section (81) radially outwardly in an annular manner, an outer circumference contour resting on a cylindrical generated surface, in which a recess (84) parallel to the winding shaft axis is recessed for a corresponding catch (12) of the winding shaft (10) projecting radially inwardly on the inner circumference, with the spreading segments (83) preferably provided comprising a cylinder segment shaped outer circumference surface and a spreading segment (83) corresponding to the position allocated to the catch (12) being missing.
- The axis cap module according to any one of claims 3 to 6, characterized in that the clamping sleeve (8) comprises, in total or at least except for an abutment flange circumferential on the annular section and cantilevering radially outwardly, an outer circumference contour resting on a generated surface of a straight prism with a polygonal section, in particular octagonal section, and each of the spreading segments (83) preferably a flat outer circumference surface, with, more preferably, a plurality of spreading segments being provided corresponding to the plurality of corners.
- The axis cap module according to claim 7 or 8, characterized in that the axis cap module comprises a plurality of clamping sleeves (8; 8a; 8b) serving as an adapter replacement for different winding shafts (10), with the plurality of clamping sleeves (8; 8a; 8b) comprising different outer dimensions and/or outer contours but the same inner dimension and contour.
- A shading device of a building opening, in particular a vertical awning, with a curtain for winding and unwinding on a winding shaft (10), characterized in that the winding shaft (10) on at least one front side is provided with an axis cap module according to any one of claims 1 to 8.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014003496.8A DE102014003496B4 (en) | 2014-03-14 | 2014-03-14 | Building opening shading device and axle cap module for a winding shaft of the building opening shading device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2918769A1 EP2918769A1 (en) | 2015-09-16 |
EP2918769B1 true EP2918769B1 (en) | 2016-04-13 |
Family
ID=52020905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14020107.0A Active EP2918769B1 (en) | 2014-03-14 | 2014-12-05 | Displaceable and lockable axis arrangement for the winding shaft of a shading device |
Country Status (2)
Country | Link |
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EP (1) | EP2918769B1 (en) |
DE (1) | DE102014003496B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL2031190B1 (en) * | 2022-03-08 | 2023-09-18 | Coulisse Bv | Assembly of a motor for a tube of a screen and a set of adaptable plugs for engaging the inner surface of the tube |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US278038A (en) * | 1883-05-22 | noyes | ||
DE812890C (en) * | 1949-07-07 | 1951-09-06 | Pickhardt & Gerlach G M B H | Spring shaft for snap-on blinds |
FR2731038B1 (en) | 1995-02-23 | 1997-05-16 | Bubendorff Sa | DEVICE FOR FIXING A SHUTTER SHAFT |
DE102005034063B3 (en) | 2005-07-21 | 2007-04-12 | Roma Rolladensysteme Gmbh | Device for closing building openings |
BE1018424A3 (en) | 2006-10-31 | 2010-11-09 | Fixolite S A | TELESCOPIC TIP FOR SHAFT SHAFT. |
EP1936106B1 (en) | 2006-12-14 | 2016-03-16 | Hunter Douglas Industries B.V. | Mounting system for a roller blind |
FR2934307B1 (en) | 2008-07-28 | 2012-10-19 | Soprofen | INSTALLATION OF ROLLER SHUTTER AXLE WINDING TELESCOPIC APRON |
-
2014
- 2014-03-14 DE DE102014003496.8A patent/DE102014003496B4/en not_active Expired - Fee Related
- 2014-12-05 EP EP14020107.0A patent/EP2918769B1/en active Active
Also Published As
Publication number | Publication date |
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DE102014003496A1 (en) | 2015-09-17 |
DE102014003496B4 (en) | 2016-08-11 |
EP2918769A1 (en) | 2015-09-16 |
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