Land vehicles – Ski or skate appliance or attachment
Patent
1995-06-20
1997-06-17
Camby, Richard M.
Land vehicles
Ski or skate appliance or attachment
280637, A63C 900
Patent
active
056391218
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to safety devices for recovering detached skis in powder or deep snow, and in particular a device for retaining a ski of the type comprising a strap connecting the ski boot to a winding means mounted on the ski.
BACKGROUND ART
So as to avoid losing skis during a fall, they were traditionally fitted with soft leather straps. This proved to be a good method but all the same dangerous for the skier who risked a serious accident if the fall was bad or violent.
The appearance of the device known as "stop-ski" consisting of a pin which is released when the skier loses a ski and which blocks the ski's progress in the snow, gave the skier total independence. Even so, "stop-ski" is ineffective in powder snow. However, over the last few years, skiing has developed a great deal and the skier who has achieved what he considers to be a high standard, will always be attracted by off-track skiing despite the fact that it is forbidden, dangerous and ill-advised. Another system used for recovering a detached ski comprises a winding means mounted on the ski and connected to the ski boot by a strap which unwinds yet holds the ski attached to the ski boot in the event of a fall. This system, although effective, generally lacks flexibility and is not always reliable in that the strap can become unattached from the winding means in the event of a violent fall, which can then lead to the ski being lost.
DISCLOSURE OF THE INVENTION
The object, therefore, of this invention is to provide a flexible and reliable device for avoiding the loss of a detached ski.
This invention consists thus of a device for avoiding the loss of a ski which has become detached in powder or deep snow of the type comprising a strap linking the ski boot to a winding means mounted on the ski, wherein the winding means comprises two units which are integral with the ski and are connected by a main pin about which is wound the strap. Each of the units comprises a spiral spring, the moveable end thereof being integral with said pin, so that, when the ski becomes detached, the strap is unwound, thereby linking the ski to the ski boot at a certain distance from the latter.
BRIEF DESCRIPTION OF THE DRAWINGS
The objects, features and objectives of the invention will be better revealed upon reading the following description given with references to diagrams wherein:
FIGS. 1a and 1b schematically represent the device according to the invention mounted on the ski, FIG. 1a showing the ski boot attached to the ski, and FIG. 1b showing the ski boot separated from the ski,
FIG. 2 represents the base on which are mounted the two units comprising the device according to the invention,
FIG. 3 is a cross section of the device according to the invention mounted on its base,
FIG. 4 represents the return spring used in each of the two units,
FIG. 5 is a cross section of one of the two bearings supported by the strap winding pin,
FIG. 6 schematically represents the strap which is wound round the pin and projecting from the opening in the cover protecting the device according to the invention,
FIG. 7 represents a plan view of the box which is integral with the ski boot and wherein the end of the strap is fixed,
FIG. 8 schematically represents the winding of the strap in the alternative version of the invention using two pins.
DETAILED DESCRIPTION
FIGS. 1a and 1b represent the device which is mounted on the ski behind the heel so that it is offset from the center of gravity of the ski. FIG. 1(a) illustrates the device when the ski is attached to a ski boot and FIG. 1(b) illustrates the device when the ski is detached from the ski boot.
The base (1) represented in FIG. 2 can be made of any rigid material such as rigid plastic or light composite. Rectangular in shape, it comprises two hollow sites (2) at its ends where the two units (3) preferably made of alloy are positioned, thus enabling centering of the mechanism.
FIG. 3 represents the whole device. It is characterised by the two alloy units (3) which are generally rectang
REFERENCES:
patent: 1856547 (1932-05-01), Gotthardt
patent: 5324063 (1994-06-01), Locantro
Camby Richard M.
Pagel Donald J.
Vanaman Frank
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