Footwear crampon

Abstract

A crampon including a body extending lengthwise from a rear end to a front end, widthwise between a first side and a second side, and heightwise between a supporting surface and a receiving surface, the crampon including points projecting in the area of the supporting face, as well as a structure for retaining a boot in the area of the receiving surface. The crampon includes a device for adjusting the longitudinal bending strength of the body.

1 . A crampon comprising:
 a body extending lengthwise from a rear end to a front end, widthwise between a first edge and a second edge, and heightwise between a supporting surface and a receiving surface;   points projecting in the area of the supporting surface;   a retaining device for retaining a boot in an area of the receiving surface;   an adjustment device for adjusting the longitudinal bending strength of the body.   
     
     
         2 . A crampon according to  claim 1 , wherein:
 the body comprises a rear plate and a front plate; and   the adjustment device is arranged between the plates.   
     
     
         3 . A crampon according to  claim 2 , wherein:
 the device for retaining a boot comprises:
 a first member structured and arranged to retain the boot in the area of the rear end; 
 a second member structured and arranged to retain the boot in the area of the front end; and 
 an elastic mechanism arranged between the plates. 
   
     
     
         4 . A crampon according to  claim 2 , wherein:
 the adjustment device comprises at least one blade extending between the front and rear plates;   each of the at least one blade is rotatably mounted in relation to the front and rear plates along a longitudinal axis of the body.   
     
     
         5 . A crampon according to  claim 4 , wherein:
 the adjustment device comprises:
 two blades parallel to one another; and 
 a rear bridge and a front bridge connecting the blades to one another, the rear bridge being connected to the rear plate, the front bridge being connected to the front plate. 
   
     
     
         6 . A crampon according to  claim 4 , wherein:
 the blades are structured and arranged to be oriented parallel to the receiving surface; and   the blades are structured and arranged to be oriented perpendicularly to the receiving surface.   
     
     
         7 . A crampon according to  claim 4 , wherein:
 when the blades are parallel to the receiving surface, one of these blades is flush with the receiving surface.   
     
     
         8 . A crampon according to  claim 4 , wherein:
 when the blades are perpendicular to the receiving surface, a side of one or more of the blades is flush with the receiving surface.   
     
     
         9 . A crampon according to  claim 5 , wherein:
 the rear bridge is connected to the rear plate by a screw-nut connection; and   the front bridge is connected to the front plate by a screw-nut connection.   
     
     
         10 . A crampon according to  claim 9 , wherein:
 the elastic mechanism is a spring acting between the rear bridge and the screw of the screw-nut connection.