Ski binding incorporating both electronic and mechanical release

Details Ski binding incorporating both electronic and mechanical release Ski binding incorporating both electronic and mechanical release

1990-10-02

1993-02-23

Culbreth, Eric D.

Land vehicles

Skates

Shoe attaching means

280613, A63C 9088

Patent

active

051883872

ABSTRACT:
A ski binding release mechanism that includes both an electronic and a mechanical release mechanism. The mechanical release mechanism incorporates a delay feature that allows it to function only if the electronic mechanism experiences a failure. The delay feature is provided by a cylinder movable with respect to a stationary piston positioned therein, the piston dividing the cylinder into two chambers. Movement of the cylinder, required to release the soleholder of a ski boot, is retarded by the time required to pass liquid in the cylinder from a first of the chambers to a second of the chambers through a choke passage in the piston as the cylinder moves. Movement of the cylinder is caused by a plunger connected to the soleholder of the ski binding that urges against the cylinder under the influence of a sustained, predetermined, potentially hazardous force acting on the binding. A spring may be located within the cylinder to absorb intermittent forces imposed on the cylinder not strong enough to pose a hazard. Resetting of the device may be accelerated through provision of a check valve in the piston that allows the fluid to move back into the second chamber through the valve, as well as through the choke passage.

REFERENCES:
patent: 4159124 (1979-06-01), Salomon
patent: 4436321 (1984-03-01), Storandt et al.
patent: 4484761 (1984-11-01), Knabel et al.
patent: 4589673 (1986-05-01), Dimier et al.

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