Land vehicles – Skates – Shoe attaching means
Patent
1992-06-18
1994-04-19
Johnson, Brian L.
Land vehicles
Skates
Shoe attaching means
280607, A63C 5075, A63C 9085
Patent
active
053039505
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is related to a safety binding for a ski, which is adapted to retain the front end of a boot on a ski, and to release the end of the boot when it exerts an excessive force on its binding.
More specifically, the invention is related to the contact plate, that is associated to the front retention element of the boot, and on which the sole of the boot rests.
2. Description of Background and Relevant Information
Support elements that are affixed to the ski or to the base of the binding are known. Generally, these elements are constituted by a base plate on which an anti-friction surface is affixed, most often a polytetrafluoroethylene plate. Such a support element has been described, for example, in French Patent Publication No. 2,533,832.
Support elements that comprise a base plate affixed to the ski and a laterally movable support plate are also known. This support plate, on which the sole rests, can be displaced laterally with the sole. In this case, during release of the boot, the friction is localized between the support plate and the base plate and not between the lower surface of the sole and the support of the boot on the ski.
French Patent Publication No. 2,449,459 describes such a support element, with a support plate that is laterally movable with the element that retains the front of the boot.
German Patent Publication No. 2,333,166 describes another embodiment, according to which the support plate is independent of the jaw, but is connected to the base plate of the support element by an elastic return device.
The support elements that are known have the disadvantage that all the vibrations, jolts or shocks to which the ski is subjected, along a vertical direction, are directly transmitted to the boot. The boot is in fact in direct support on the ski by the intermediary of elements that are non-deformable along a vertical direction.
These shocks and vibrations form a part of the information that the skier perceives by means of his skis, his boots and his bindings. It is on the basis of this information that the skier controls his movements to adjust his position or to execute a turn or to position his running edges, for example.
These shocks and these vibrations, if directly transmitted, are harmful because their amplitude is excessive with respect to the amount of other information that the skier receives. These shocks and these vibrations momentarily mask other information.
SUMMARY OF THE INVENTION
One of the objects of the invention is to propose a contact plate for a binding, and especially a front binding, that overcomes the aforementioned disadvantage by filtering the information that is transmitted to the skier via his ski and his boot in order to especially moderate information having excessive amplitude.
Another object of the invention is to propose a binding that is easy to implement.
Other objects and advantages of the invention will become more apparent upon reading the description that follows.
The ski binding, according to the invention, is adapted to retain the front end of a boot on a ski, and to release this end of the boot when it exerts excessive force on its binding. It comprises an element for retaining the end of the boot and also comprises a contact plate positioned between the boot and the ski, the front of the sole of the boot resting on the contact plate, the contact plate also having a support plate which is in contact with the sole of the boot.
The safety binding of the invention, additionally, has a layer of shock absorbing material positioned between the support plate and the upper surface of the ski in order to filter the vibrations transmitted by the ski to the boot, and at the same time, to maintain the conditions of contact and of transverse sliding of the boot with respect to the support plate.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be better understood with reference to the description that follows, as well as to the annexed drawings that form an integral part of it.
REFERENCES:
patent: 3806144 (1974-04-01), Yans et al.
patent: 4294460 (1981-10-01), Kirsch
patent: 4561673 (1985-12-01), Pascal et al.
patent: 4586727 (1986-05-01), Andrieu et al.
patent: 4657279 (1987-04-01), Pascal et al.
patent: 4896895 (1990-01-01), Bettosini
patent: 4911463 (1990-03-01), Gertsch
patent: 4938497 (1990-07-01), Goud
patent: 4984816 (1991-01-01), Rullier
patent: 5040821 (1991-08-01), Berthet et al.
patent: 5044658 (1991-09-01), Challande et al.
Berthet Alain
Brischoux Jean-Claude
Rigal Jean-Pierre
Johnson Brian L.
Salomon S.A.
LandOfFree
Safety binding for alpine skis does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety binding for alpine skis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety binding for alpine skis will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-15854