Rear support device for an assembly for retaining a boot on a sports apparatus

Abstract

A rear support device having a rear support element, an abutment, and a mechanism for immobilizing the abutment with respect to the rear support element. The device includes a first wedge connected to the rear support element, and a second wedge connected to the abutment, at least one of the two wedges being movable to occupy at least two stable positions with respect to the piece to which it is connected, such that various portions of a wedge can be in contact with the other wedge.

What is claimed is:  
     
         1 . A rear support device comprising: 
 a rear support element, an abutment, and an immobilizing mechanism for immobilizing the abutment with respect to the rear support element, in a position selected along a main direction of the rear support element;    a first wedge connected to the rear support element, and a second wedge connected to fie abutment, said first and second wedges being arranged so as to limit a displacement of the abutment in one direction along the main direction, at least one of said first and second wedges being movable to occupy at least two stable positions with respect to a piece to which it is connected, such that various portions of a wedge can be in contact with the other wedge.    
     
     
         2 . A rear support device according to  claim 1 , wherein: 
 the first wedge is fixed with respect to the rear support element; and    the second wedge is movable with respect to the abutment.    
     
     
         3 . A rear support device according to  claim 2 , wherein the first wedge has the shape of a stair, whose steps are substantially perpendicular to the main direction, and wherein the second wedge is housed in a channel of the abutment oriented along a transverse direction, the second wedge having a second section arranged to come in contact with one of the steps of the first wedge.  
     
     
         4 . A rear support device according to  claim 3 , wherein cavities of the abutment are provided to alternately receive a tooth of the second wedge.  
     
     
         5 . A rear support device according to  claim 3 , wherein the stair has three steps, and wherein the abutment has three cavities.  
     
     
         6 . A rear support device according to  claim 4 , wherein the length of the steps of the stair is constant, and wherein the distance that separates two successive cavities is constant.  
     
     
         7 . An assembly for retaining a boot on a gliding board, said assembly comprising: 
 a rear support device including a rear support element, an abutment, and an immobilizing mechanism to immobilize the abutment with respect to the rear support element in a position selected along a main direction of the rear support element;    a first wedge connected to the rear support element, and a second wedge connected to the abutment, the first and second wedges being arranged so as to limit a displacement of the abutment in one direction along the main direction, at least one of the first and second wedges being movable to occupy at least two stable positions with respect to the piece to which it is connected, such that various portions of a wedge can be in contact with the other wedge.    
     
     
         8 . A boot comprising: 
 a rear support device including a rear support element, an abutment, and an immobilizing mechanism to immobilize the abutment with respect to the rear support element in a position selected along a main direction of the rear support element;    a first wedge connected to the rear support element, and a second wedge connected to the abutment, the first and second wedges being arranged so as to limit a displacement of the abutment in one direction along the main direction, at least one of the first and second wedges being movable to occupy at least two stable positions with respect to the piece to which it is connected, such that various portions of a wedge can be in contact with the other wedge.