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Publication numberUS3677567 A
Publication typeGrant
Publication dateJul 18, 1972
Filing dateSep 2, 1969
Priority dateSep 6, 1968
Also published asDE1943989A1, DE1943989B2, DE1943989C3
Publication numberUS 3677567 A, US 3677567A, US-A-3677567, US3677567 A, US3677567A
InventorsGeorges P J Salomon
Original AssigneeGeorges P J Salomon
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Low friction bearing arrangement for ski boot in contact with a ski
US 3677567 A
Abstract
A low friction bearing arrangement for a ski boot contacting a ski comprising at least one slot having a smooth bottom surface extending substantially across the ski boot and at least one corresponding friction plate secured to the ski.
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Description  (OCR text may contain errors)

Patented July 18, 1972 INVENTOR. Gea/'jes RJ'. .SALM/V limite States Patent Salomon [451 July 18, i972 [541 Low FRICTIoN BEARING AGEMENT Ton SKI BooT IN ooNTACT WITH A SKI [72] Inventor: Georges P. J. Salomon, 34 Ave. de

Loverchy Annecy, Haute-Savoie, France [22] Filed: Sept. 2, 1969 [2 l] Appl. No.: 854,366

[30] Foreign Application Priority Data Sept. 6, 1968 France..................,........,...1067-74 [52] ILS. Cl. 28o/11.35 C, 36/2.5 AL [51] Int. Cl ..A63c 9/00 [58] Field ofSearch 2SC/11.35, 11.13 RW;

[56] References Cited UNITED STATES PATENTS 2,793,869 5/1957 Braun 28o/11.35 HA Cubberley et al 280/l1.35 C

3,511,516 5/1970 Smolka et al ...28o/11.35 C 1,087,745 2/1914 Ellis ..280/1 L13 A 2,705,150 3/1955 Hansen 2SC/11.35 C

FOREIGN PATENTS OR. APPLICATIONS 515,945 2/1955 Italy ..36/2.5 AL 431,349 8/1967 Switzerland ..280/ll.35 CB Pn'mary Examiner-Benjamin Hersh Assistant Examiner-Milton L. Smith Attorney-Roger Goudreau [57] ABSTRACT A low friction bearing arrangement for a ski boot contacting a ski comprising at least one slot having a smooth bottom surface extending substantially across the ski boot and at least one corresponding frictionplate secured to the ski.

7 Clains, 5 Drawing Figures LOW FRICTION BEARING ARRANGEMENT FOR SKI BOOT IN CONTACT WITH A SKI This invention relates to a low friction bearing arrangement for a ski boot in contact with a ski.

Various means are known which permit release of a skiers ski boot from his ski binding when he experiences a fall which twists his leg while limiting the uncertainties due to the coefficient of friction between the ski boot and the ski. These means consist of, for example, an assembly of moveable parts secured to the ski and adapted for rotation or translation, or of a fixed part made of a material having a low coefficient of friction secured to the ski.

ln the first instance, the assembly is relatively expensive, fragile and may be hindered in its operation by the presence of small stones. In addition, the ski boot is raised with respect to the ski by the thickness of the above-mentioned elements, and this is detrimental to the practice of the ski sport in accordance with modern techniques.

ln the second instance, the sole of the ski boot has a rugged surface and patterns adapted to prevent the sliding ofthe boot on snow or ice when walking without skis. Thus to try to improve the sliding of the sole ofa ski boot on a ski while, at the same time, trying to prevent the sliding of the same ski boot when walking on snow or ice presents a delimma. In addition, the rugged surface of the sole may catch small stones thus increasing the friction of the sole of the ski boot on the ski.

The main feature of the present invention is to overcome the above-mentioned drawbacks in a simple and effective manner.

In the arrangement in accordance with the invention, the soles of the ski boots have, at the location where they contact the skis, one or more substantially transversal slots which are relatively narrow, advantageously smooth, and devoid of patterns to prevent the catching and holding of small stones therein capable of hindering the sliding of the ski boots on the skis.

The arrangement in accordance with the invention includes the attachment, to the skis, of friction plates corresponding to the slots in the soles of the ski boots. These plates permit the contact of smooth rubber or plastic elements with an equally smooth surface of metal or plastic.

A plate having a high coefficient of resistance to wear or to oxidation may be inserted or molded in each slot in the sole. Stainless steel may, for example, be used for such plate.

ln order to hinder the least possible the task of walking with the boots in accordance with the invention, the slots are preferably not located in the normal bearing area of the sole on the ground.

The invention will now be disclosed in detail in the following description with reference to the accompanying drawings which illustrate, by way of example, preferred embodiments of the invention in which:

FIG. 1 is a perspective bottom view of a ski boot in accordance with the invention, only the sole of the boot being shown;

FIG. 2 is a perspective top view of a ski including part of the arrangement in accordance with the invention;

FIG. 3 is a side view of the whole arrangement, in a simple embodiment ofthe invention;

FIG. 4 illustrates a detail of the arrangement shown in FIG. 3; and

FIG. 5 illustrates a second embodiment of the arrangement in accordance with the invention permitting a better resistance to wear.

In FIG. l, the bottom of a sole l is provided with two slots 2 and 5 having smooth bottom surfaces, the depth of each slot being identified by reference numeral 9 and the width thereof by reference numeral 4. The slot 2 is disposed at a distance 3 Inn from the front end of the sole corresponding to one third of the length of the sole, and the slot 5 is located in the heel of bottom of slot 2 may be flat or curved.

ln FIG. 2, the ski 6 includes a friction plate 7 made of metal or plastic and secured to the ski by means of two countersunk screws l2. The central axis of plate 7 is located at the same distance 3 mentioned in the description of FIG. l from the bearing surface of the front ski attachment I4. The width 8 of the plate 7 is less than the width 4 of the slot 2. The height ll of the plate 7 is greater than the depth 9 of the slot 2.

The friction plate 7 preferably has a shape corresponding to the shape of the slot 2 in the sole of a ski boot.

FIG. 3 illustrates the vassembly on a ski 6 of a sole l comprising two transversal slots 2 and 5 bearing on the corresponding friction plates 7 and 17.

In FIG. 4, it may be seen that the contact area of the sole l with the ski 6 is limited to the upper surface of the plate 7 creating the gap l0 between the normal surface of the sole and the ski. This gap l0 may, however, be of relatively low value. The small stones will practically have no tendency to remain on the smooth surface of slot 2, in contact with friction plate 7, the gap l0 permitting, on the other hand, their release from the space between the sole of the ski boot and the ski.

By means of a proper choice of material, there may be ob tained a low coefficient of friction between the plate 7 and the bottom of the transversal slots of the sole 1. Thus conditions for minimum friction are provided to permit a good lateral operation of the ski binding.

In FIG. S, a boot plate 13 is inserted -or molded at the bottom of slot 2 to protect such slot from damages which may be caused by stones 15 entering the slot during walking without skis.

It is within the scope of the invention to modify the shape, the dimensions and the proportions of the slots and of the friction plates or to make them of various materials or combination of materials, or to locate them in any fashion in the soles of the ski boots and on the skis.

I claim:

l. A low friction bearing arrangement for a ski boot in contact with a ski comprising:

a. a slot located substantially transversely across the lower face of the sole of the ski boot, said slot having a smooth bottom surface and two lateral edges, and

b. an anti-friction plate secured to the ski, said plate having an upper face and being engaged with said slot, wherein said bottom surface of said slot bears on said upper face of said anti-friction plate whereby the whole lower face of the sole is spaced from the ski and is freed from contact with the ski.

2. A low friction bearing arrangement as defined in claim l wherein said two lateral edges of said slot are straight and parallel to each other.

3. A low friction bearing arrangement as defined in claim l wherein said two lateral edges of said slot are curved.

4. A low friction bearing arrangement as defined in claim l wherein said bottom surface of said slot is flat.

5. A low friction bearing arrangement as defined in claim 1 wherein said bottom surface of said slot is curved.

6. A low friction bearing arrangement as defined in claim l including a bearing plate in the bottom of said slot with said bearing plate forming the surface against which said anti-friction plate bears.

7. A low friction bearing arrangement as defined in claim l wherein the shape of said anti-friction plate corresponds to the shape of said slot.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1087745 *Nov 12, 1912Feb 17, 1914Charles E EllisSnow-shoes.
US2705150 *Oct 10, 1950Mar 29, 1955Walter H HansenSafety ski binding
US2793869 *Mar 7, 1955May 28, 1957Braun EduardReleasable ski binder
US3448990 *Jun 21, 1967Jun 10, 1969Gordon C LipeSafety devices for reducing friction between a ski and a skier's boot sole
US3511516 *Apr 12, 1968May 12, 1970Smolka & Co Wiener MetallSki-binding
CH431349A * Title not available
IT515945A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3785668 *May 11, 1971Jan 15, 1974Hannes MarkerSafety ski binding system
US3858663 *Apr 26, 1973Jan 7, 1975Allied Prod CorpTractor mounted utility grader blade
US3957280 *Jun 22, 1973May 18, 1976Gertsch AgSki boot
US3971567 *Jun 11, 1974Jul 27, 1976Vereinigte Baubeschlagfabriken Gretsch And Co. GmbhSafety ski binding
US4551931 *Jan 26, 1984Nov 12, 1985Adi Dassler KGSole for a cross-country ski boot and associated binding base plate
US5293702 *Jun 28, 1993Mar 15, 1994Daiwa SeikoMethod and apparatus for selectively orienting ski boot
US6311416 *Nov 26, 1999Nov 6, 2001Shimi-Shoe Walking Technologies Ltd.Therapeutic shoe
US6402183Jan 31, 2000Jun 11, 2002Skis Rossignol S.A.Ski boot
US6609313Jun 26, 2001Aug 26, 2003Lange International S.A.Alpine ski boot
US6792703Nov 1, 2001Sep 21, 2004Shimon CohenTherapeutic shoe
EP2497383A2 *Feb 15, 2012Sep 12, 2012Theodor FreundorferSki shoe, ski and ski binding
WO1991016957A1 *Apr 30, 1991Nov 14, 1991Roger Nelson PackSki and hinged boot apparatus with central flexed structure
Classifications
U.S. Classification280/636, 36/117.3
International ClassificationA63C9/085, A63C9/00, A43B5/04, A63C9/086
Cooperative ClassificationA63C9/001, A43B5/0421, A43B5/0417, A63C9/086
European ClassificationA43B5/04D2C, A43B5/04D2, A63C9/086, A63C9/00A