Land vehicles – Skates – Runner type
Patent
1999-01-13
2000-06-27
Camby, Richard M.
Land vehicles
Skates
Runner type
280618, A63C 9085
Patent
active
060797312
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a binding support plate of multiple element construction for a ski, having a base plate on the side close to the top side of the ski and securable thereto and a bearing plate which is arranged between the base plate and the binding or shoe sole and to which the binding can be secured.
Binding support plates are used for improving the transmission of forces between the shoe, the binding and the ski. They are intended furthermore to raise the position of the shoe on the ski, thereby increasing the edge pressure when the ski runs on the edge and making it easier to execute swings. In addition, binding support plates are expected to assist the damping of vibrations by making use of intermediate layers and support surfaces made of rubber elastic material.
In a known binding support plate of the type initially referred to, the base plate is comprised of a shell enveloping a cavity filled with rubber. On the underside of the base plate the shell has several openings through which the rubber material projects slightly to form a bearing surface. Arranged on the base plate is a bearing plate comprised of two fixed end plates with fastening holes for the binding elements and an interposed flexible plate which is held by the end plates and forms the support surface for the shoe. To fasten this known binding support plate the end plates are secured to the ski with screws which penetrate bores in the base plate.
With the known binding support plates the position of the binding and the shoe relative to the ski is fixed and cannot be changed. The only way to influence the running characteristics is by means of the overall height of the binding support plate and the attendant shift of the point of force application when the ski runs on the edge.
By contrast, it is an object of the present invention to provide a binding support plate of the type initially referred to which enables the ski's running characteristics to be improved by a controllable lateral shift of the point at which the force is transmitted between the shoe and the ski, independently of the overall height, and which is capable of effectively damping ski vibrations and shocks from the slope.
This object is accomplished by the present invention in that an intermediate plate made of an elastomeric material is arranged between the base plate and the bearing plate, being elastically deformable by the forces occurring between the ski and the shoe during skiing, and in that the bearing plate is movable, by deformation of the intermediate plate, relative to the base plate in a direction transverse to the longitudinal direction of the ski and is adapted to take support on the base plate by means of guide elements which limit the movement of the bearing plate in a direction transverse to the ski's longitudinal direction to a variable degree dependent on the elastic deformation of the intermediate plate.
With the binding support plate of the present invention, the bearing plate and binding and the shoe held by the binding are movable relative to the base plate and the ski in a direction transverse to the running direction of the ski. Hence it is possible for the center of force transmission to be shifted from the middle of the ski to the one or other side. This shift is controlled by the interaction of the elastomeric intermediate plate and the guide elements and is restricted to those running conditions when the ski is caused to run on the edge in order to achieve an increased edge pressure. Under normal loading when the ski has its running surface in full engagement with the slope, the bearing plate is centered by the elastomeric intermediate plate and the guide elements relative to the base plate and is stabilized in this position.
The binding support plate of the present invention has numerous advantages. Running characteristics are improved over those of the state of the art by a more favorable relationship between the bending angle of the skier's knee and the tilting angle of the ski edge. Steering response becomes more exact and the con
REFERENCES:
patent: 4974867 (1990-12-01), Rullier et al.
patent: 5538271 (1996-07-01), Abondance
Emig Uwe
Geilsdoerfer Reinhold
Gramlich Markus
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