Ski or snowboard boot

Abstract

Ski or snowboard boot (10) comprising a sole (11), shell (14) and shaft (15), the shaft (15) comprising a supporting shell (17) which butts against the lower leg on the rear side and is mounted in the ankle region such that it can be pivoted about a transverse axis (16) which extends approximately parallel to the sole (11) and approximately perpendicularly to the longitudinal axis thereof. The supporting shell (17) is coupled to the front sole (12) of the boot (10) such that a force acting on the supporting shell (17) or a torque acting on the supporting shell (17) is introduced essentially directly into the front sole (12) or vice versa.

1 . A ski or snowboard boot (10) comprising a sole (11), shell (14) and shaft (15), the shaft (15) comprising a supporting shell (17) which butts against the lower leg on the rear side and is mounted in the ankle region such that it can be pivoted about a transverse axis (16) which extends approximately parallel to the sole (11) and approximately perpendicularly to the longitudinal axis thereof, wherein the supporting shell (17) is coupled to the front sole (12) of the boot (10) such that a force acting on the supporting shell (17) or a torque (D) acting on the supporting shell (17) is introduced essentially directly into the front sole (12) or vice versa.  
     
     
         2 . The boot as claimed in  claim 1 , wherein the supporting shell (17) is operatively connected to the front sole (12), in particular the ball-of-the-foot region of the same, via a force- and torque-transmitting element (19).  
     
     
         3 . The boot as claimed in  claim 1  or  2 , wherein the force- and torque-transmitting element comprises a rail (19) which extends essentially freely around the heel, has its free ends connected to the front sole, or directly above the same, and has the pivotably mounted supporting shell (17) connected to its arcuate crosspiece (20), which extends around the heel.  
     
     
         4 . The boot as claimed in  claim 2  or  3 , wherein in the region of the transverse axis (16), about which the supporting shell (17) is mounted in a pivotable manner, the force- and torque-transmitting element (19) is supported in a force- and torque-transmitting manner about an axis (24) which extends parallel to said transverse axis.  
     
     
         5 . The boot as claimed in  claim 3 , wherein in the region of the transverse axis (16), about which the supporting shell (17) is mounted in a pivotable manner, the two legs (22) of the force- and torque-transmitting rail (19) are each retained within a groove (25), which is open in the direction of the outside.  
     
     
         6 . The boot as claimed in  claim 5 , wherein the grooves (25), which accommodate the rail legs (22), extend in the forward direction as far as the connection of the free ends of the rail legs (22) to the front sole (12), or above the same.  
     
     
         7 . The boot as claimed in  claim 3  or  4 , wherein in the region of the transverse axis (16), about which the supporting shell (17) is mounted in a pivotable manner, the two legs (22) of the force- and torque-transmitting rail (19) each extend through an opening within a supporting element, either the supporting elements being mounted such that they can be pivoted about an axis extending parallel to the transverse axis (16) or the openings themselves being designed such that the rail legs (22) within the same are supported such that they can be pivoted about an axis (24) parallel to the transverse axis (16).  
     
     
         8 . The boot as claimed in one of  claims 1  to  7 , wherein the shell (14), for accommodating a foot, and the shaft (15), with the exception of the supporting shell (17) assigned thereto, are produced from soft material.  
     
     
         9 . The boot as claimed in  claim 8 , wherein on the top side, located opposite the walking side of the sole (11), a supporting border (26) for accommodating the foot shell (14), consisting of soft material, and for anchoring the force- and torque-transmitting element (19) is integrally formed on the sole (11), it being the case that, in the ankle region, said supporting border (26) extends upward as far as this region in order to accommodate the pivot bearing (transverse axis 16) for the supporting shell (17), which is assigned to the shaft (15).  
     
     
         10 . The boot as claimed in  claim 9 , wherein the supporting border (26) extends around the periphery of the sole (11).  
     
     
         11 . The boot as claimed in one of  claims 3  to  10 , wherein the supporting shell (17) is connected to the arcuate crosspiece (20) of the force- and torque-transmitting rail (19) via a connecting rod or a connecting plate (18), which is connected to the supporting shell (17) either in a permanently fixed manner or, alternatively, depending on requirements, either in a fixed manner (skiing position) or such that it can be displaced relative to it (walking position).  
     
     
         12 . The boot as claimed in one of  claims 1  to  11 , wherein in the region behind the transverse axis (16), about which the supporting shell (17) is mounted in a pivotable manner, the force- and torque-transmitting element (19) is of resilient design in the vertical plane, the resilience being set such that, on the one hand, essentially loss-free force and torque transmission from the supporting shell (17) to the front sole (12) of the boot (10) and vice versa is ensured but, on the other hand, predetermined damping is achieved for the pivoting movement of the supporting shell (17).  
     
     
         13 . The boot as claimed in one of  claims 1  to  12 , wherein the foot shell (14) and the shaft (15) are either provided with a fixed inlay (32) or dimensioned such that they are suitable for accommodating a separate inner boot.  
     
     
         14 . The boot as claimed in one of  claims 3  to  13 , wherein the force- and torque-transmitting rail (19) consists of metal, in particular chromium-nickel alloy.  
     
     
         15 . The boot as claimed in one of  claims 3  to  13 , wherein the supporting shell (17) is assigned a solid closure clasp (27) with a preformed, relatively rigid closure strap (28), while flexible closure straps, in particular touch-and-close fastener straps (29, 30), are provided in addition.