Means and techniques for releasably securing ski boots to skis

Claim 1

In combination, ski bindings including: a socket structure for fastening to the toe portion of a ski boot; a spring-urged plunger within a housing member which is mountable on a ski for cooperation with said socket structure; an elongated plate member having a length commensurate with a ski boot and having its forward portion contactable with a portion of said socket structure; said plate member terminating near its rearward portion in a cam block; abutment means for mounting on a ski and having an inner portion in engagement with said cam block to normally retain said rearward plate member portion; spring-urged stirrup means mounted on said plate member and having a portion thereof engageable with the upper portion of a boot heel to urge the same downward against said plate member; said plunger having a bulbous end portion normally contactable with a central arcuate cam surface on said socket structure to press said portions of said plate member and said socket member and said socket structure together; said socket structure having a pair of angularly disposed cam surfaces between which said arcuate cam surface is disposed for contact with said plunger end when abnormal forces are present to allow detachment of said plunger from said socket structure; said cam block having a downwardly and rearwardly centrally disposed cam surface normally pressed into engagement with said abutment means and a pair of angularly disposed cam surfaces between which said centrally disposed cam surface is disposed to facilitate detachment of said cam block from said abutment means when abnormal forces are present.