| 摘要 |
A releasable heel hold-down device for a ski binding includes a base part secured to a ski with a housing displaceably secured on the base part. A first rocker and a second rocker are located within the housing. For holding the heel of a ski boot on the ski, a hold-down member is adjustably connected to the second rocker which is pivotally attached at spaced locations to the housing and to the base part. The first rocker is pivotally connected to the base part. A spring, positioned within the housing, biases the first rocker in the direction of the hold-down member. The two rockers are interconnected by a toggle assembly consisting of first toggle levers pivotally attached to the first rocker and a second toggle lever pivotally joined to the first toggle lever and to the second rocker. The device is displaceable between a holding position securing a ski boot on the ski and a release position. The axes of pivotal attachment of the second toggle lever define a dead center line through which the axis of pivotal attachment of the first toggle levers to the first rocker passes in the displacement of the device between the holding and the release positions.
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