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Publication numberUS3797839 A
Publication typeGrant
Publication dateMar 19, 1974
Filing dateAug 23, 1971
Priority dateSep 28, 1970
Also published asDE2134810A1, DE2134810B2, DE2134810C3, DE2135450A1, DE2135450B2, US3797844
Publication numberUS 3797839 A, US 3797839A, US-A-3797839, US3797839 A, US3797839A
InventorsT Smolka, G Schweizer
Original AssigneeGertsch Ag
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ski binding
US 3797839 A
Abstract
Means for fixing bindings to a ski for permitting free flexing of the ski without adversely effecting the relationship of the bindings to the ski boot. A plate is mounted on the upper side of the ski and there is provided one and only one zone of mounting therebetween. The ski bindings are then mounted on said plate for normal engagement with a ski boot. The plate is sufficiently rigid so that the bindings maintain their normal position with respect to the ski boot in spite of the flexing of the ski. Thus, as the ski flexes, the plate is fixed at one point with respect thereto and other portions thereof are free to slide longitudinally of the ski.
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Description  (OCR text may contain errors)

ite States Patent Smolka et a1.

[451 Mar. 19, 1974 SKI BINDING Inventors: ThomasGordon Smolka,

Wien-Mauer; Gottfried Schweizer, Wien, both of Austria Assignee: Gertsch AG, Zug, Switzerland Filed: Aug. 23, 1971 Appl. N0.: 173,835

[30] Foreign Application Priority Data Oct. 8, 1970 Austria 9063/70 US. Cl 280/1L35 C Int. Cl. A630: 9/00 Field of Search ..280/1 1.35 C, 11.35 Y, 280/1135 K, 11.35 R, 11.35 D,

RefeTences Cited UNITED STATES PATENTS 3,642,297 2/1970 Edmund 280/1135 K FOREIGN PATENTS OR APPLICATIONS 77,728 ll/l950 Norway 280/1 1.35 C 126,223 6/1928 Switzerland 280/1135 D 176,165 9/1953 Austria 280/1 1.13 R 501,555 7/1930 Germany... 280/1135 K 56,966 8/1936 Norway 280/1135 C 36.237 3/1906 Switzerland 280/1135 C Primary Examiner-David Schonberg Assistant Examiner-Milton L. Smith Attorney, Agent, or Firm-Woodhams, Blanchard & Flynn [5 7] ABSTRACT their normal position with respect to the ski boot in spite of the flexing of the ski. Thus, as the ski flexes, the plate is fixed at one point with respect thereto and other portions thereof are free to slide longitudinally of the ski.

10 Claims, 4 Drawing Figures PATENTEDIMRI 91914 3; 797, a 39 MKMZ 21 SKI BINDING The invention relates to a ski binding which is mounted onto a plate and the plate in turn mounted onto the ski in spaced relationship therewith so that the ski can be flexed without changing the distance between the ski binding components.

In most cases ski bindings are mounted directly onto the ski. However, if during use one skis over a rough terrain, the ski bends downwardly and upwardly. Thus, the distance between the ski binding components changes so that, if the ski binding parts are not moveable in longitudinal direction, the ski boot tends part of the time to be compressed and damaged and part of the time to be held only loosely and possibly actually to be released from the binding.

Therefore ski bindings have already been produced in which one ski binding part, particularly the heel holder, is arranged to move in the longitudinal direction in response to the force of a compression spring. While this spirng effectively balances the distance variations of the ski binding parts, nevertheless, the holding forces still vary sufficiently that there is continuing danger of an opening of the binding occurring too soon or too late and thus a continuing risk of injury.

It is also known to mount the ski binding parts on a plate secured to the ski. This plate, however, either follows the curvatures of the ski through which the distance between the ski binding parts is still changed in the same manner as above mentioned or the ski is stiffened and its elasticity is affected.

Applicant has therefore already suggested, in a previously filed application, Ser. No. 17,553, filed Aug. 13, 1971, that the ski binding be mounted on a plate which is in turn supported on the ski but spaced slightly therefrom. Said plate is supported at two points on the ski of which at least one support means permits movement of the plate relative to the longitudinal direction of the ski, for example by means of a pin and slotted hole arrangement. This structure fulfills its purpose effectively but the present invention arises from a continuing effort to further improve the product and to reduce its COSt.

This is here achieved by connecting the plate to the ski only at one point.

The subject matter of the invention is illustrated by the several embodiments set forth in the drawing, in which:

FIGS. 1 and 2 illustrate one embodiment with the ski respectively in straight and curved condition.

FIGS. 3 and 4 illustrate further possible embodiments.

As shown in FIG. 1, the ski binding parts 1,2 are mounted on the plate 3 through a single interposed spacer 4 and is secured to the ski 5 only in the central portion of the plate to define a T-shape. A space between ski 5 and plate 3 is thus provided which permits curvatures of the ski 5 without influencing the distance between the ski binding parts 1,2. Such flexing of the ski as indicated in FIG. 2, occur particularly when skiing on rough terrain.

As shown in FIG. 3, the spacer 4 is integral with the plate 3, is located at only one end of the plate, here the rearward end to define an L-shape, and is secured to the ski only at this end.

In FIG. 4, the plate 3 has one end thereof integral with the ski 5 and is received in a recess 6 of the ski 5'.

A spacing is provided between the plate and the bottom surface of the recess 6 which spacing here commences at the connecting point of plate 3" and ski 5, here the forward end of plate 3", and enlarges continuously toward the other end of recess 6. Said plate, as in the other embodiments, carries the binding parts 1,2 so that the ski 5 can flex upwardly or downwardly without affecting the plate 3" or the distance between the ski binding parts 1,2.

In FIGS. l-3 the supports 4 and 4' are obviously to be made as short longitudinally of the ski as mechanically feasible in order to have minimum influence on the flexing of the ski. Thus, while a single point support is the ideal insofar as the flexing of the ski is concerned, the actual longitudinal dimension of the support is determined by the minimum amount required for effective support and connection. However, at least some of the benefits of the invention can be secured if the longitudinal dimension of said supports exceeds said minimum so long as it is shorter than the plate. Nevertheless if such exceeding is appreciable, the free flexing of the ski will be adversely affected. Normally, the length of the support 4 and 4 will be less than one-fourth the length of the plate.

Similarly, in FIG. 4, some benefit will be obtained even if the toe piece 1 is placed ahead of the recess 6 and the plate 3" correspondingly shortened. However, such modification will adversely affect the flexing of the ski from the ideal condition shown in FIG. 4, and should be practiced to only a limited extent, if at all.

The plates 3, 3' and 3" should be of sufficient stiffness to maintain the relationship of the binding plates 1,2 to the ski boot in spite of the flexing of the ski.

The invention is not limited to the illustrated embodiments.

For example in the constructions according to FIGS. 1 and 2, the plate, spacer and ski can also be made of one part. There is also in this embodiment the possibility of arranging the plate 3 or 3' with the spacer 4 or 4' in a recess of the ski 5, similar to the recess 6 of FIG. 4. Furthermore it would be possible in FIG. 4 to make the distance of the plate 3 from the bottom surface of the recess 6 the same over its entire length.

There are many further possible embodiments which lie within the scope of the invention.

The embodiments of the invention in which an exclusive property of privilege is claimed are defined as follows:

1. A ski binding arrangement, comprising:

an elongated rigid plate, said rigid plate having ski binding components mounted thereon adjacent the opposite longitudinal ends thereof;

securernent means for fixedly securing said rigid plate to said ski, said securernent means consisting of only a single connecting member engaging said ski at a single location for supporting a majority of said rigid plate in a manner to define a cantilever portion extending away from said single connecting member in said vertically spaced relation and generally parallel to the longitudinal axis of said ski, said cantilever portion being completely free and out of direct engagement with said ski, said connecting member having a longitudinal dimension which is less than said rigid plate so that said flexible ski is free to flex immediately adjacent said connecting member on opposite longitudinal sides thereof.

2. The improvement according to claim 1, wherein said connecting member consists of a support separate from said ski and said rigid plate secured between said rigid plate and said ski adjacent the longitudinal midpoint of said rigid plate.

3. The improvement according to claim 2, wherein said support comprises a spacer member having flat upper and lower surfaces, said rigid plate being secured to said upper surface.

4. The improvement according to claim 1, wherein said connecting member consists of a support integral with said rigid plate at one longitudinal end thereof, said support being positioned between said rigid plate and said ski so that said rigid plate is supported in a cantilevered manner above said ski.

5. The improvement according to claim 1, wherein said connecting member consists of a support integral with said rigid plate.

6. The improvement according to claim 1, wherein said longitudinal dimension of said connecting member is less than one-fourth the longitudinal dimension of said rigid plate.

7. The improvement according to claim 1, wherein said rigid plate and said connecting member define a T-shape.

8. The improvement according to claim 1, wherein said rigid plate and said connecting member define an 4 L-shape.

9. In a ski binding arrangement having ski binding components mounted on a rigid plate, said rigid plate being secured to a flexible ski in vertically spaced relation, the improvement comprising:

means defining a recess in the upper surface of said ski;

securement means for fixedly securing said rigid plate to said ski, said securement means consisting of only a single connecting member for supporting a majority of said rigid plate in said vertically spaced relation, said connecting member having a longitudinal dimension which is less than said rigid plate so that said flexible ski is free to flex immediately adjacent said connecting member, said connecting member being defined by an integral connection between said ski and said rigid plate, said rigid plate projecting over said recess and being vertically spaced from the bottom thereof.

10. The improvement according to claim 9, wherein said spacing between said rigid plate and said bottom of said recess enlarges from one longitudinal end of said recess whereat said rigid plate is integrally joined to said ski toward the opposite longitudinal end of said recess.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3642297 *Feb 4, 1970Feb 15, 1972James Mitchell EdmundSafety ski binding
AT176165B * Title not available
CH36237A * Title not available
CH126223A * Title not available
DE501555C *Jul 3, 1930Wilhelm KoernerBefestigungsvorrichtung fuer die loesbaren Fussbretter bei Schneeschuhbindungen
NO56966A * Title not available
NO77728C * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4067593 *Apr 27, 1976Jan 10, 1978Earl Arthur WAdjustable platform ski binding mount
US4139214 *Jan 19, 1977Feb 13, 1979Hans MeyerSki
US4141570 *Oct 17, 1977Feb 27, 1979Sudmeier James LAdjustable connection between ski and binding
US4251090 *Jan 5, 1979Feb 17, 1981Tmc CorporationSafety ski binding
US4269431 *Feb 21, 1979May 26, 1981Tmc CorporationSafety ski binding
US4678201 *Jul 27, 1984Jul 7, 1987Gregory WilliamsSki binding
US5395132 *Mar 8, 1993Mar 7, 1995Skis Rossignol S.A.Device for mounting a release binding on a ski
US5447322 *Oct 26, 1993Sep 5, 1995Solomon, S.A.Ski for winter sports comprising a stiffener and a base
US5474321 *May 27, 1994Dec 12, 1995Marker Deutschland GmbhCarrying plate for securing a ski boot on a ski
US5655787 *May 15, 1996Aug 12, 1997Skis Rossignol SaSki with improved profile
US5671940 *Jan 16, 1997Sep 30, 1997Skis Rossignol S.A.Device for mounting a boot on a downhill ski
US5895068 *Jul 24, 1997Apr 20, 1999Doyle; FintanHard binding for a snowboard
US5984343 *Apr 8, 1997Nov 16, 1999Robert J. HarringtonSliding apparatus having adjustable flexion and torsion characteristics
US6056310 *May 13, 1996May 2, 2000Hangl; AndreasMeans for securing a snowboard or ski to the boot of a snowboarder or skier
US6113113 *Apr 1, 1998Sep 5, 2000Robert J. HarringtonSliding apparatus having adjustable flexion and torsion characteristics
US6217055 *Nov 29, 1999Apr 17, 2001Salomon S.A.Ski equipped with an interface device provided for supporting boot retaining elements
US6244616 *Nov 12, 1999Jun 12, 2001Salomon S.A.Interface device between a boot and an alpine ski
US6648362 *Aug 24, 2001Nov 18, 2003Buenter RolandSki guide pressure intensifier plate (snow-speed)
US6659493 *May 10, 2000Dec 9, 2003Milan TrnkaConnector plate for bindings
US6910695 *Feb 8, 2001Jun 28, 2005Kabushiki Kaisha Aki InternationalSnowboard having an elevated deck
US7341271Oct 7, 2003Mar 11, 2008Buenter RolandSki spot apparatus with integrated force transmission system
US7708302 *Feb 15, 2006May 4, 2010Anton F. WilsonSnowboards
US7984921Nov 19, 2003Jul 26, 2011Madshus AsSki with binding assembly aid, method for production of such a ski and corresponding assembly aid
US8460505Jul 20, 2011Jun 11, 2013Madshus AsSki having a mounting aid for a binding, process for the manufacture of such a ski, and corresponding mounting aid
WO1998045001A1 *Apr 6, 1998Oct 15, 1998Robert J HarringtonSnowboard having adjustable flexion and torsion characteristics
Classifications
U.S. Classification280/617, 280/607
International ClassificationA63C9/00
Cooperative ClassificationA63C9/003
European ClassificationA63C9/00D