EP0671187A1 - Skibindung mit einer Versteifungsplatte unter dem Fuss - Google Patents

Skibindung mit einer Versteifungsplatte unter dem Fuss Download PDF

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Publication number
EP0671187A1
EP0671187A1 EP95101766A EP95101766A EP0671187A1 EP 0671187 A1 EP0671187 A1 EP 0671187A1 EP 95101766 A EP95101766 A EP 95101766A EP 95101766 A EP95101766 A EP 95101766A EP 0671187 A1 EP0671187 A1 EP 0671187A1
Authority
EP
European Patent Office
Prior art keywords
plate
ski
assembly according
stiffening member
lifting arm
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.)
Withdrawn
Application number
EP95101766A
Other languages
English (en)
French (fr)
Inventor
Joel Arduin
Pierre Szafranski
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.)
Salomon SAS
Original Assignee
Salomon SAS
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
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP0671187A1 publication Critical patent/EP0671187A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/07—Skis or snowboards with special devices thereon, e.g. steering devices comprising means for adjusting stiffness

Definitions

  • the invention relates to a binding assembly which is intended to retain a boot in abutment against a gliding board, in particular a ski boot on an alpine ski.
  • the invention relates to an assembly comprising a front fixing element, a rear element, a brake, and a stiffening member which extends above the ski, in its median zone, that is to say in the area where the fasteners are located.
  • the invention also relates to the brake and the stiffening member considered in isolation.
  • stiffening members are known, for example from patent applications published under the number WO 83/03360, EP 409.749, or also DE 90 17 486. These stiffening members are formed by a plate which extends to the above the ski, and which is connected to the ski at each of its ends either by a securing link, or by an elastic link.
  • stiffening members influence the stiffness of the ski and is passively opposed to its bending.
  • such a stiffening member must be relatively distant from the neutral fiber of the ski, that is to say raised above the ski.
  • DE 90 17 486 describes an interface with a stiffening member which is pressed against the ski.
  • the ski brake which is generally associated with the rear fastening element is also offset. To keep the same braking efficiency, it would be necessary to lengthen the brake arms, and, moreover, to reinforce their own rigidity, as well as the restoring force developed by the return spring.
  • a brake integrated in the stiffening member is known from patent applications published under the number EP 556 610 and WO 93 15 797.
  • the brake plays an active role in the operation of the interface, that is to say that at least part of the brake forms part of the force transmission member. Therefore, this part of the brake must be reinforced accordingly, which complicates its construction.
  • the present invention proposes to improve the efficiency of the stiffening member without significant modification of the brake.
  • the binding assembly comprises a front binding element and a rear binding element, each comprising a jaw and a body carried by a base plate intended to be fixedly connected to the ski in a vertical direction, further comprising a member. of stiffening extending parallel to the ski at least between the front and rear binding elements. It is characterized by the fact that the stiffening member has a movable plate between two positions, a high position where at least one of its ends is raised relative to the rest of the stiffening member, and a low position where it forms with the rest of the stiffening member an active stiffening member capable of opposing the flexing of the ski.
  • the mobility of the plate which constitutes part of the stiffening member means that this member only functions as such when the shoe is present between the fastening elements.
  • the removable plate is returned to the inactive position by a lifting arm pushed back by a spring, and the lifting arm extends downwards by two arms which form the braking arms.
  • the lifting arm is carried by a bearing which is close to the ski, so that the brake as a whole is low on the ski.
  • the brake arms and return spring do not have to be oversized.
  • FIG. 1 represents a ski 1, seen from the side in its central zone. Fastening elements 3 and 4 are mounted on the ski in this central area.
  • the fastening elements 3 and 4 are of any suitable type.
  • the front fastening element 3 has in known manner a jaw 5 which ensures the retention of the front end of the shoe.
  • the jaw is carried by a body 6, and the body itself is carried on a base plate 7.
  • the base plate 7 is assembled integrally with the ski directly, or as shown in FIG. 1 via a base 14 which is secured to the ski.
  • the rear fixing element 4 has a jaw 8 carried by a body 9.
  • the body 9 is slidably mounted along a base plate 10 shaped as a slide oriented in the longitudinal direction of the ski, under the action of a spring called recoil spring which elastically pushes the body forward.
  • the base plate 10 is assembled integrally with the ski, directly, or else, as illustrated in the figures by means of a base 15. If necessary, the base 15 can have a deformable character on any or part of its length as is for example known from the patent application published under the number FR 2,668,941.
  • Each fastening element 3, 4 is also associated with a support plate 12, 13, on which the shoe sole rests. These support plates will be described in more detail later.
  • the binding assembly according to the invention also has a stiffening member 18 which extends above the ski in its middle zone, that is to say in the ski zone where the front and rear binding elements 3 and 4 are assembled.
  • the stiffening member is formed mainly by an elongated plate 20 which extends between the front and rear bases 14 and 15.
  • the stiffening member 18 also comprises the connecting means which connect the ends of the plate 20 to the ski.
  • the plate 20 is removable, that is to say that at least one of its ends can rise above the ski.
  • the front of the plate 20 is connected by a hinge, and the rear end of the plate is free, that is to say that it can rise freely above the ski .
  • At least one of the connections between one end of the stiffening member and the ski is elastically deformable so that the resistance of the stiffening member to the bending of the ski is exerted in an elastic manner.
  • FIG. 3 illustrates such a connection between the front end of the plate 20 and the front base 14.
  • the front base 14 which carries the base plate of the fixing element, has in its rear part an obviously open 21 up and back.
  • a block 22 of elastically deformable material is housed, so as to fill at least the front part of the recess.
  • the block is made of any suitable material, and can have damping or viscoelastic properties.
  • the front end 23 of the plate 20 has a section reduced to the dimensions of the recess 21, so that it can slide freely in the volume of the recess and if necessary compress the block 22.
  • the front face of the end 23 is erected to compress the block 22 by moving forward relative to the base 14.
  • the block 22 could be replaced by any other elastically deformable means, for example one or more springs, a damping cylinder, or any other suitable means.
  • the connection between the plate 20 and the base 14 is covered by a cover 24 made of an elastically deformable material.
  • the cover 24 has two legs 25 laterally and 26, which descend along the lateral faces of the base 14 and fit into recesses of corresponding shape.
  • the cover 24 Towards the rear, the cover 24 has a tongue 28 which covers the front part of the plate 20.
  • the tongue has towards its rear end a stud 29 which cooperates with an opening 30 in the plate 20, in the form of a buttonhole.
  • the stud 29 can slide longitudinally in the buttonhole 30 over a limited amplitude.
  • the plate can pivot from a high position to a low position.
  • a relative movement between the base 14 and the plate 20 can occur in a longitudinal direction.
  • the support plate 12 which supports the front end of the shoe sole is associated with the cover 24.
  • the support plate 12 is the upper part of an element transverse support 31 which rests on the base 14, on each side of the recess 21, and which passes through an opening 32 of the cover 24, so that the support plate 12 protrudes above the cover 24 This is not, however, limiting.
  • FIG. 4 illustrates an alternative embodiment of the plate 20.
  • the lever is in two parts 20a and 20b which are assembled by means making it possible to adjust the overall length of the plate.
  • the ends of the parts 20a and 20b are provided to slide relative to each other in a longitudinal direction, and an assembly bolt 34 passes through the assembly at an orifice of the part 20a and d 'a longitudinal light of part 20b.
  • the length of the plate 20 is determined so that, in the low position, the rear end of the plate 20 engages against the front part of the rear base plate 10, that is to say that the plate 20 is embedded between the bases 14 and 15 of the fastening elements.
  • the plate 20 has in its rear part a pallet 40 which covers the front part of the base plate 10. This pallet forms the support plate 13 on which the shoe sole rests.
  • the plate effectively functions as a stiffening member in cooperation with the front and rear bases 14 and 15, by exerting resistance to the approach of these bases 14 and 15 which are produced when the ski flexes.
  • FIGS 5 and 6 best illustrate the connection between the plate 20 and the rear fixing element.
  • the fitting means between the rear end of the plate and the rear fixing element comprise, for the rear end of the plate 20, two substantially perpendicular bearing faces 44 and 45.
  • the fitting means On the side of the base plate 10, the fitting means comprise complementary bearing faces 46 and 47.
  • these bearing faces constitute the front end of a connecting piece 48 whose rear end is engaged in the profile of the slide which forms the base plate 10.
  • the faces 45 and 47 overlap each other and ensure the vertical transmission of the stresses which are perceived by the support plate 13.
  • these faces are in two parts, respectively 45a, 45b, and 47a, 47b.
  • the faces 44 and 46 are intended to transmit the longitudinal forces between the plate 20 and the base plate 10. When there is interlocking, in the low position of the plate, the faces 44 and 46 are substantially vertical. Preferably one of the faces is slightly curved or bevelled so as to facilitate nesting.
  • the stiffening member will not significantly oppose the bending of the ski that beyond a determined bending, corresponding to the take-up of the play between the faces 44 and 46.
  • the play may even be significant so that the faces 44 and 46 do not come into contact until after significant bending of the ski.
  • the length of the plate is also possible to adjust the length of the plate to a value greater than the space between the front and rear elements.
  • the interlocking of the plate is then allowed by the bending or beveling of one of the faces 44 or 46. This interlocking induces in the plate 20 a pre-stress which is transmitted by reaction to the ski.
  • One of these different operating regimes of the stiffener can be predetermined by the initial length of the plate.
  • the operating regime can be defined according to the length that is given to the plate, relative to the spacing of the front and rear fixing elements. .
  • FIGS. 7 and 8 Another possibility is illustrated in FIGS. 7 and 8.
  • the plate is in two parts 20c and 20d mounted in a sliding manner along the general direction defined by the plate.
  • a step selector 36 is mounted for example on the underside of the part 20c. This selector is accessible from above by a screw head 37, or any other suitable means, such as a manual index. The steps are distributed eccentrically around the periphery of the selector.
  • the part 20d of the plate 20 has, opposite the selector, a small shoe 38 which is designed to bear in a longitudinal direction against the steps of the selector 36.
  • an elastic return means such as a spring 39, or an assembly means keeps the shoe 38 in abutment against the selector 36 when the plate is in the high position.
  • the selector makes it possible to adjust the length of the plate 20, hence an adaptation to the spacing of the front and rear fixing elements, as well as a selection of the operating regime of the stiffener, with play, without play, with pre -constraint.
  • the plate 20 is removable is advantageous in the case where it induces, by its great length, a pre-stress between the front and rear fixing elements. Indeed, in this case, the pre-stress is not permanent, it can be temporarily canceled by placing the plate 20 in the high position.
  • the plate can be raised to the high position in the absence of a shoe makes it possible to accommodate under it a braking mechanism, which responds to the same control mode according to the presence or absence of the shoe.
  • An elastic return means ensures the elastic return of the plate 20 in its high position, in particular in the absence of a shoe.
  • this means is a retractable lifting arm 43 located under the plate, towards its rear end.
  • the lifting arm 43 is carried by a bearing 42.
  • the bearing 42 is secured to the ski.
  • the bearing 42 constitutes the front end of the base plate 10 or of the base 15.
  • the lifting arm 43 is articulated to the bearing 42 around a transverse axis, and its upper part circulates in a housing 35 which is located on the underside of the plate 20.
  • a spring 49 also provides elastic lifting of the arm 43
  • the spring 49 is a torsion spring whose windings are located at the upper part of the lifting arm.
  • One end of the torsion spring is hooked to the lifting arm, the other end rests on the bearing 42.
  • the spring 49 works in an angular manner, that is to say that it exerts on the lifting arm 43 for a moment reminder which tends to raise the arm upwards.
  • the spring is provided so that the arm 43 resiliently recalls the plate 20 in the high position when nothing is opposed to it, and in particular in the absence of a shoe. Conversely, during the engagement of the boot in the binding elements, the plate 20 is brought into the low position, which forces the lifting arm 43 to lower in the direction of the ski.
  • the arm 43 constitutes the actuating member of a ski brake.
  • the arm 43 is extended towards the rear by two braking arms 43a and 43b, which pass on each side of the ski.
  • the spring 49 is also the return spring of the ski brake thus formed towards its active braking position.
  • the plate 20 In the absence of the boot, the plate 20 is in the high position, and the brake arms are in the active braking position, that is to say the low position shown in FIG. 1. In the presence of the boot, the plate is in the low position, and the brake arms are brought back to the high position by the downward tilting of the arm 43. The plate 20 is then in the active position of stiffening member.
  • the arm 43 disengages the rear end of the plate 20 and drives it upwards. At the same time, the brake spades are lowered to the active braking position.
  • the effectiveness of the plate 20 as a stiffening member depends on the height of the plate 20, or more precisely on the height of the connections between the ends of the plate 20 and the fixing elements, which determines the magnitude of the relative movements between the plate and the ski. Since the active elements of the brake are located below the plate, the height of the plate relative to the ski is not limited by the brake.
  • FIG. 9 illustrates an alternative embodiment.
  • the spring which ensures the elastic return of the lifting arm to the high position is a compression spring 50 housed in a recess 51 located on the underside of the plate 20.
  • the spring 50 exerts on the upper part of the lifting arm.
  • lifting 43 a thrust force directed in the longitudinal direction of the plate 20.
  • the lowering of the arm 43 causes the compression of the spring.
  • the compression of the spring then produces by reaction a thrust stress between the block 22 and the bearing 42 of the arm 43.
  • Figure 10 illustrates another variant.
  • the upper end of the lifting arm is articulated to the plate 20, around a transverse axis.
  • the lower part of the arm 53 can travel along a horizontal and longitudinal lumen 54 located in the base 56 of the rear fixing element, and a compression spring 55 exerts on this end a thrust directed towards the front.
  • This thrust recalls the arm 53 and the plate 20 in the high position.
  • this thrust generates a reaction which is transmitted to the ski.
  • the front fixing element 63 is assembled not to a base secured to the ski, but to a carriage 64 movable in a longitudinal direction.
  • the carriage 64 is guided in a support 65 integral with the ski. It has on its upper surface a mounting area for the front fixing element 63.
  • the removable plate 20 of the stiffening member is connected to the carriage 64 by an articulation.
  • This articulation is represented in the form of a pin 66, and it allows the plate to switch from its low position to its high position.
  • the longitudinal movement of the carriage 64 is controlled by an elastic element 67 which is housed in a recess 76 in the carriage 64.
  • this element consists of three springs 68, 69, 70 arranged in a longitudinal direction between a plate 71 and a counter plate 72 parallel.
  • the plate and the counter plate are assembled by two screws 73 and 74 which determine their spacing, and therefore the initial compression of the springs.
  • a central screw 75 whose head is retained in a longitudinal direction in the support 65 while being accessible from the outside is also screwed into the plate 71. This screw makes it possible to adjust the longitudinal position of the elastic element in the support . From this fat, the screw 75 determines to what degree of ski bending the elastic element and therefore the stiffening member comes into action to oppose the bending of the ski.
  • the entry into action of the elastic element is caused by the contact between the bottom of the recess 76 of the carriage 64 and the counter plate 72.
  • the advance of the carriage 64 then causes the springs to be compressed.
  • the front fixing element moves with the carriage 64.
  • the carriage 64 and its support form part of the stiffening member 18 as it is generally defined.
  • the means for guiding the carriage along the support and the elastic element are not limiting for the invention, and any other suitable means may be suitable.
  • the elastic element could be replaced or assisted by an elastically deformable block, a damping cylinder, or any other deformable means.
  • the lifting arm 43 could be replaced by another elastic return means such as a torsion spring or the like. In this case, it would be possible to accommodate a traditional brake under the movable plate.
  • the ascent of the plate could be ensured by a traditional type brake which would be located under it.
  • the plate could be connected to the brake actuation pedal so that their movement is coordinated.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP95101766A 1994-03-11 1995-02-10 Skibindung mit einer Versteifungsplatte unter dem Fuss Withdrawn EP0671187A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9403018A FR2717090B1 (fr) 1994-03-11 1994-03-11 Ensemble de fixation pour retenir une chaussure sur un ski.
FR9403018 1994-03-11

Publications (1)

Publication Number Publication Date
EP0671187A1 true EP0671187A1 (de) 1995-09-13

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ID=9461066

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EP95101766A Withdrawn EP0671187A1 (de) 1994-03-11 1995-02-10 Skibindung mit einer Versteifungsplatte unter dem Fuss

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EP (1) EP0671187A1 (de)
FR (1) FR2717090B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2928843A1 (fr) * 2008-03-20 2009-09-25 Skis Rossignol Soc Par Actions Dispositif de reglage d'une planche de glisse

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0556610A2 (de) * 1992-02-18 1993-08-25 Salomon S.A. Vorrichtung zum Verändern der natürlichen Druckverteilung eines Skis auf seine Gleitfläche
FR2707511A1 (fr) * 1993-07-16 1995-01-20 Salomon Sa Dispositif visant à modifier la répartition naturelle d'un ski sur sa surface de glisse, et ski équipé d'un tel dispositif.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0556610A2 (de) * 1992-02-18 1993-08-25 Salomon S.A. Vorrichtung zum Verändern der natürlichen Druckverteilung eines Skis auf seine Gleitfläche
FR2707511A1 (fr) * 1993-07-16 1995-01-20 Salomon Sa Dispositif visant à modifier la répartition naturelle d'un ski sur sa surface de glisse, et ski équipé d'un tel dispositif.

Also Published As

Publication number Publication date
FR2717090A1 (fr) 1995-09-15
FR2717090B1 (fr) 1996-07-12

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