Sports equipment for the practice of ski mountaineering

Abstract

Sports equipment comprising a ski ( 1 ) and a lift group (G); the ski ( 1 ) comprises a longitudinal axis (Z), a tip ( 11 ), a tail ( 12 ), two lateral edges ( 13 ) and a bridge-like structure ( 15 ), arranged between the tail ( 12 ) and the tip ( 11 ), above the ski ( 1 ); the bridge-like structure ( 15 ) comprises a hooking surface ( 15 a ) for bindings (AT) of a user's boot and defining, on a lower side, a duct ( 16 ); said lift group (G) comprising an engine unit (M) comprising a motor ( 2 ) and a drum ( 4 ) moved by the motor ( 2 ), a management and control unit (U) connected to the motor ( 2 ), a first roller ( 51 ) arranged on the tip ( 11 ) of the ski ( 1 ), a second roller ( 52 ) arranged on the tail ( 12 ) of the ski ( 1 ) and a belt ( 6 ) closed on itself and wound longitudinally around the ski under a condition for which it slides around the two rollers ( 51, 52 ), being dragged in rotation by the above-mentioned drum ( 4 ) and being slidingly inserted on the duct ( 16 ); the belt ( 6 ) is equipped with a rib sliding in a groove of the ski ( 1 ).

1 . Sports equipment comprising a ski ( 1 ) and a lift group (G); wherein said ski ( 1 ) comprises a longitudinal axis (Z), a tip ( 11 ), a tail ( 12 ), two lateral edges ( 13 ) and a bridge-like structure ( 15 ), arranged between the tail ( 12 ) and the tip ( 11 ), above the ski ( 1 ); said bridge-like structure ( 15 ) comprising, on the upper portion, a hooking surface ( 15   a ) for bindings (AT) of a user's boot and defining, on the lower side, a duct ( 16 ) below said hooking surface ( 15   a ); said lift group (G) comprising:
 an engine unit (M) comprising a motor ( 2 ) and a drum ( 4 ) moved by said motor ( 2 ); said drum ( 4 ) having a rotation axis (X) orthogonal to the longitudinal axis (Z) of the ski ( 1 );   a management and control unit (U) connected to said motor ( 2 );   a power supply battery ( 3 ) for said motor ( 2 ) of the engine unit (M) and said control unit (U);   a first roller ( 51 ) arranged on the tip ( 11 ) of the ski ( 1 );   a second roller ( 52 ) arranged on the tail ( 12 ) of the ski ( 1 );   a belt ( 6 ) closed on itself and wound longitudinally around the ski under a condition for which it slides around the two rollers ( 51 ,  52 ), being dragged in rotation by the above-mentioned drum ( 4 ) and being slidingly inserted on the duct ( 16 )   
       and characterized by the fact that
 said belt ( 6 ) comprises a central rib ( 65 ) protruding from said belt ( 6 ) towards said ski ( 1 ) 
 said ski ( 1 ) comprises a groove for sliding said central rib ( 65 ) when said belt ( 6 ) it dragged in rotation by the above-mentioned drum ( 4 ). 
 
     
     
         2 . The sports equipment according to  claim 1 , wherein said central rib ( 65 ) protrudes from said belt ( 6 ) for the whole extension of said belt ( 6 ) without continuity solution. 
     
     
         3 . The sports equipment according to  claim 1 , wherein said drum ( 4 ) and said rollers ( 51  and  52 ) comprise annular cavities ( 45 ;  55 ) for sliding said central rib ( 65 ). 
     
     
         4 . The sports equipment according to  claim 1 , wherein said central rib ( 65 ) and said belt ( 6 ) are made of the same material and in one single piece. 
     
     
         5 . The sports equipment according to  claim 4 , wherein said belt ( 6 ) comprises at least a structural primary level proximate to said ski ( 1 ); and wherein said central rib ( 65 ) protrudes from said primary level of said belt ( 6 ) and it can be implemented in one single piece with said primary level of said belt ( 6 ). 
     
     
         6 . The equipment according to  claim 5 , wherein said belt ( 6 ) even comprises an external level configured to come in contact with a ground and having a surface finishing of the seal skin type, or equivalent. 
     
     
         7 . The sports equipment according to  claim 1 , wherein said groove extends on the entirety of the lower surface of the ski ( 1 ) without continuity solution. 
     
     
         8 . The equipment according to  claim 1 , wherein said engine unit (M) comprises a supporting frame (T) fastened to the ski ( 1 ), wherein said frame (T) comprises two flanks (F 1 , F 2 ) which delimit a compartment for housing said motor ( 2 ) and said drum ( 4 ). 
     
     
         9 . The equipment according to  claim 6 , wherein said supporting frame (T), at the base of the above-mentioned opposite flanks (F 1 , F 2 ), has as many slots (Ap) extending in the sense of length of the ski ( 1 ) and which are suitable to be crossed by a transverse rod ( 71 ) belonging to a carriage ( 70 ), suitable to slid from an end to another one of said pair of slots (Ap); wherein the ends of said transverse rod ( 71 ) project outside such slots (Ap) to sustain the opposing arms ( 72 ) of the above-mentioned carriage ( 70 ), which sustain, at their end positioned on the side of the above-mentioned drum ( 4 ), the above-mentioned tension roller ( 7 ); wherein the above-mentioned register means ( 8 ) of the tension roller ( 7 ) consists of two threaded handwheels ( 81 ) cooperating too with the above-mentioned slots (Ap), so as to be able to lock their position in a wished position of said slots (Ap). 
     
     
         10 . The equipment according to  claim 1 , wherein said lift group (G) comprises two sides (s) for the longitudinal edges of said belt ( 6 ) near the first roller ( 51 ) and near the second roller ( 52 ). 
     
     
         11 . The equipment according to  claim 1 , wherein said lift group (G) comprises quick connecting means ( 30 ) to connect said battery ( 3 ) to the ski ( 1 ); and wherein the above-mentioned quick connection means ( 30 ) comprises a cradle-like support ( 30   a ) and an overlying pair of tapes ( 30   b ) made of Velcro. 
     
     
         12 . The equipment according to  claim 1 , wherein the above-mentioned drum ( 4 ) at the ends has two radial series of teeth ( 40 ) suitable to engage with respective series of holes ( 60 ) implemented at the longitudinal edges of the belt ( 6 ). 
     
     
         13 . The equipment according to  claim 1 , wherein said belt ( 6 ) comprises a first end ( 61 ) and a second end ( 62 ) suitable to be connected to each other through connecting means of detachable type ( 63 ). 
     
     
         14 . The equipment according to  claim 1 , wherein said lift group (G) comprises a unidirectional clutch (FU) shaped so as to allow the rotation of the drum ( 4 ) from a direction and to prevent it from the other direction.