Sports shoe and a ground plate device

Abstract

A sports shoe is disclosed for playing golf, having a sole fitted with a rotation mechanism, the rotation mechanism being provided with a rotary element rotatable against a biasing force provided to the rotary element by a biasing mechanism coupled to the rotary element. Further, a ground plate device is provided, in particular for use in playing golf, the ground plate device comprising a rotation mechanism, the rotation mechanism being configured to receive a section of a sole of a sports shoe, especially a golf shoe, and being provided with a rotary element rotatable against a biasing force provided to the rotary element by a biasing mechanism coupled to the rotary element. In a preferred embodiment, the ground plate device further comprises fastening means for detachably or not-detachably fastening the sports shoe.

What is claimed is: 
     
         1 . A sports shoe, in particular for playing golf, comprising a sole fitted with a rotation mechanism, the rotation mechanism being provided with a rotary element rotatable against a biasing force provided to the rotary element by a variable biasing mechanism coupled to the rotary element. 
     
     
         2 . The sports shoe according to  claim 1 , wherein the variable biasing mechanism comprises a spring element providing the biasing force to the rotary element. 
     
     
         3 . The sports shoe according to  claim 1 , wherein the variable biasing mechanism comprises two or more biasing mechanisms configured to adjust the biasing force by association with the rotary element. 
     
     
         4 . The sports shoe according to  claim 1 , wherein the biasing force provided by the variable biasing mechanism proportionately changes on rotation of the rotary element. 
     
     
         5 . The sports shoe according to  claim 4 , wherein the biasing force provided by the variable biasing mechanism increases on rotation of the rotary element relative to the sole. 
     
     
         6 . The sports shoe according to  claim 1 , wherein the rotary element comprises a rotatable disc, the disc being rotatable against the biasing force. 
     
     
         7 . The sports shoe according to  claim 1 , wherein the rotation mechanism is received in a recess of the sole. 
     
     
         8 . The sports shoe according to  claim 1 , wherein a plurality of studs is provided on an outer surface of the rotary element. 
     
     
         9 . The sports shoe according to  claim 1 , wherein the rotary element has a rotation axis positioned relative to a section of the sports shoe adapted to receive a ball of a wearer's foot. 
     
     
         10 . A ground plate device, in particular for use in playing golf, comprising a rotation mechanism, the rotation mechanism being configured to receive a section of a sole of a sports shoe, especially a golf shoe, and being provided with a rotary element rotatable against a biasing force provided to the rotary element by a variable biasing mechanism coupled to the rotary element. 
     
     
         11 . The ground plate device according to  claim 10 , further comprising fastening means for detachably or not-detachably fastening the sports shoe. 
     
     
         12 . The ground plate device according to  claim 10 , wherein the variable biasing mechanism comprises a spring element providing the biasing force to the rotary element. 
     
     
         13 . The ground plate device according to  claim 10 , wherein the variable biasing mechanism is provided as a combination of biasing mechanisms configured to adjust the biasing force by association with the rotary element. 
     
     
         14 . The ground plate device according to  claim 10 , wherein the biasing force provided by the variable biasing mechanism proportionately changes on rotational position of the rotary element relative to the shoe. 
     
     
         15 . The ground plate device according to  claim 13 , wherein the biasing force provided by the variable biasing mechanism proportionately increases dependent upon rotation position of the rotary element relative to the sole. 
     
     
         16 . The ground plate device according to  claim 10 , wherein the rotary element is provided with a rotatable disc, the disc being rotatable against the biasing force. 
     
     
         17 . The ground plate device according to  claim 10 , wherein the rotary element has a rotation axis positioned proximate a ball of a user's foot.