Device for stiffening a ski
AssigneeMarker Deutschland GmbH
InventorsAlfred Boehm, Werner Messerschmidt
Life of this patent
Estimating the term…
Abstract
A device for providing a ski with additional stiffness with respect to bending in the transverse and longitudinal directions of the ski. The stiffening elements which provide the stiffening may be combined with ski bindings.
Claims36
A system for changing the stiffness of a ski, said system comprising:
- stiffening means extending in the longitudinal direction of the ski for imparting stiffness to the ski, said stiffening means having a high degree of immobility in response to bending movements of the ski in the horizontal longitudinal plane of the ski and being relatively movable in response to bending movements of the ski in the vertical longitudinal plane of the ski;
- and
- impedance means operatively engageable with the stiffening means, as bending movements are applied in the horizontal longitudinal plane of the ski.
A system for controlling the longitudinal and horizontal stiffness in a ski, said system including:
- longitudinal impedance means having one portion fixed to the ski and a second free portion which moves longitudinally relative to the ski when the ski bends longitudinally, and means for counteracting the movement of said second free portion to impart stiffness in the longitudinal direction;
- and
- transverse impedance means for imparting stiffness in the transverse direction relative to the ski.
Apparatus for controlling the stiffness of a ski, said system comprising:
- a rigid member securable to a ski, said rigid member having one portion being operatively fixable relative to the ski, another portion movable longitudinally as the ski bends in a vertical, longitudinal plane, and control means fixed relative to said rigid member;
- guide means fixed relative to the ski for cooperating with said control means, said control means cooperating with said guide means for controlling the stiffness of the ski;
- and
- one of said control means and said guide means establishing a path of movement in the longitudinal direction and impeding a path of movement in a direction transverse to the longitudinal direction, and the other of said control means and said guide means following the path in the longitudinal direction.
Apparatus for controlling the rigidity of a ski in a direction transverse to the longitudinal direction of the ski, the ski extending in a horizontal plane and extending in the longitudinal direction with the transverse direction being transverse to the longitudinal direction, said apparatus comprising:
- plate means rigid relative to the ski and extending longitudinally on the ski, said plate means having at least one portion fixed relative to the ski and at least one other portion movable in the longitudinal direction as the ski bends in the vertical direction relative to said plate means;
- control means attached to one of the ski and said plate means for controlling the stiffness of the ski;
- and
- guide means operatively attached to the other of the ski and said plate means for guiding said control means in the longitudinal direction when the ski bends vertically relative to said plate means and for restricting movement of said control means in a transverse direction to increase the rigidity of the ski in the transverse direction.
Dependencies are inferred from the claim text.