Training ball with line

Abstract

Ball with line ( 20 ) for training purposes where the line ( 20 ) is rotatably attached to the ball in a special suspension, the suspension of the line being arranged in a particular cavity ( 14 ) arranged in a confined space between the ball's airtight bladder ( 13 ) and its outer layer ( 12 ). The cavity ( 14 ) typically has circular cross section and may include a centre member ( 21 ) to which the line is attached and an annular element ( 24 ) surrounding this, optionally comprising a battery for providing power to a sensor and optionally to a communication device.

1 . Ball ( 11 ) with a line ( 20 ) for training purposes, the line ( 20 ) being rotatably attached to the ball ( 11 ) in a suspension, characterized in that the line suspension is arranged in a cavity ( 14 ) arranged in a confined area between the ball's airtight bladder ( 13 ) and its outer layer ( 12 ). 
     
     
         2 . Ball ( 11 ) according to  claim 1 , wherein the cavity ( 14 ) has a substantially circular cross section. 
     
     
         3 . Ball according to  claim 1 , wherein the cavity is formed by heat treatment of the bladder ( 13 ) in an apparatus having an inner surface having a substantially spherical shape, where a part of the bladder surface, when inflated, is recessed from the other parts of bladder surface, caused by the inner surface of the apparatus exhibiting a corresponding deviation from spherical shape. 
     
     
         4 . Ball ( 11 ) according to  claim 1 , wherein the suspension comprises a centre element ( 21 ) with a through opening ( 71 ) for the line ( 20 ). 
     
     
         5 . Ball ( 11 ) according to  claim 4 , wherein the centre element ( 21 ) is a screw having external threads ( 28   b ). 
     
     
         6 . Ball ( 11 ) according to  claim 4 , wherein the centre element ( 21 ) is an element that attaches with a bayonet connection to a radially external element. 
     
     
         7 . Ball ( 11 ) according to  claim 5 , wherein the external threads ( 28   b ) of the screw ( 21 ) are arranged to mate with internal threads ( 27   a ) of an annular element ( 24 ). 
     
     
         8 . Ball ( 11 ) according to  claim 5 , wherein the external threads ( 28   b ) of the screw ( 21 ) are arranged to mate with internal threads ( 28   a ) on an umbrella-shaped sleeve ( 23 ). 
     
     
         9 . Ball ( 11 ) according to  claim 7 , wherein the annular element ( 24 ) exhibits external threads ( 26   b ) that fit the internal threads ( 26   a ) along the periphery of the cavity ( 14 ) between the bladder ( 13 ) and the outer layer ( 12 ). 
     
     
         10 . Ball ( 11 ) according to  claim 1 , wherein the suspension comprises an annular element ( 24 ) and a centre element ( 21 ). 
     
     
         11 . Ball ( 11 ) according to  claim 1 , wherein the suspension comprises a centre element ( 21 ). 
     
     
         12 . Ball ( 11 ) according to  claim 10 , wherein the annular element comprises at least one electrical component selected among at least one battery and at least one sensor. 
     
     
         13 . Ball ( 11 ) according to  claim 1 , wherein a channel ( 15 ) is arranged from the cavity ( 14 ) towards the ball's centre, adapted to removably receive at least one sensor ( 16 ) for registration of motion, acceleration, position, orientation or pressure. 
     
     
         14 . Ball ( 11 ) according to  claim 7 , wherein the annular element comprises at least one electrical component selected among at least one battery and at least one sensor.