Anti-slip mechanism for footwear thereof

Abstract

A footwear including a retractable anti-slip mechanism is presented, the anti-slip mechanism comprising at least one retractable ground-engaging member disposed in a sole of the footwear and pivotally connected to a pivot member extending on a side of the footwear for selectively expanding the at least one retractable ground-engaging members under the sole to engage with the ground and retracting the at least one retractable ground-engaging members in the sole to prevent engaging the ground.

What is claimed is: 
     
         1 . A retractable anti-slip mechanism for a footwear, the anti-slip mechanism comprising at least one retractable ground-engaging member disposed in a sole of the footwear and pivotally connected to a pivot member extending on a side of the footwear for selectively expanding the at least one retractable ground-engaging members under the sole to engage with the ground and retracting the at least one retractable ground-engaging members in the sole to prevent engaging the ground. 
     
     
         2 . The retractable anti-slip mechanism for a footwear of  claim 1 , wherein the anti-slip mechanism is enclosed in the sole and does not communicate with the interior of the footwear to prevent water to get in the footwear. 
     
     
         3 . The retractable anti-slip mechanism for a footwear of  claim 1 , wherein the pivot member extending on the side of the footwear is covered by a door. 
     
     
         4 . The retractable anti-slip mechanism for a footwear of  claim 3 , wherein the door is configured to lock the pivot member to maintain the retractable anti-slip mechanism in one of an expanded position and a retracted position. 
     
     
         5 . The retractable anti-slip mechanism for a footwear of  claim 1 , wherein the ground-engaging member of the retractable anti-slip mechanism is configured to extend below a surface of the sole from a receptacle thereof in an expanded position, and is configured to retract inside the sole within the receptacle thereof and close the receptacle thereof to prevent foreign material to get inside the receptacle in the sole when the ground-engaging member is in a retracted position stowed in the sole. 
     
     
         6 . The retractable anti-slip mechanism for a footwear of  claim 1 , wherein the ground-engaging member is a plurality of ground-engaging members assembled along the pivot member. 
     
     
         7 . The retractable anti-slip mechanism for a footwear of  claim 1 , wherein the ground-engaging member is replaceable on the pivot member. 
     
     
         8 . The retractable anti-slip mechanism for a footwear of  claim 1 , wherein the at least one retractable ground-engaging member disposed in the sole of the footwear is located under a ball of a foot. 
     
     
         9 . The retractable anti-slip mechanism for a footwear of  claim 1 , wherein the at least one retractable ground-engaging member disposed in the sole of the footwear is located under a heel of a foot. 
     
     
         10 . The retractable anti-slip mechanism for a footwear of  claim 1 , wherein the at least one retractable ground-engaging member disposed in the sole of the footwear is a plurality of ground-engaging members symmetrically disposed in respect of the sole along the pivot member. 
     
     
         11 . A footwear including a retractable anti-slip mechanism, the anti-slip mechanism comprising at least one retractable ground-engaging member disposed in a sole of the footwear and pivotally connected to a pivot member extending on a side of the footwear for selectively expanding the at least one retractable ground-engaging members under the sole to engage with the ground and retracting the at least one retractable ground-engaging members in the sole to prevent engaging the ground. 
     
     
         12 . The footwear of  claim 11 , wherein the anti-slip mechanism is enclosed in the sole and does not communicate with the interior of the footwear to prevent water to get in the footwear. 
     
     
         13 . The footwear of  claim 11 , wherein the pivot member extending on the side of the footwear is covered by a door. 
     
     
         14 . The footwear of  claim 13 , wherein the door is configured to lock the pivot member to maintain the retractable anti-slip mechanism in one of an expanded position and a retracted position. 
     
     
         15 . The footwear of  claim 11 , wherein the ground-engaging member of the retractable anti-slip mechanism is configured to extend below a surface of the sole from a receptacle thereof in an expanded position, and is configured to retract inside the sole within the receptacle thereof and close the receptacle thereof to prevent foreign material to get inside the receptacle in the sole when the ground-engaging member is in a retracted position stowed in the sole. 
     
     
         16 . The footwear of  claim 11 , wherein the ground-engaging member is a plurality of ground-engaging members assembled along the pivot member. 
     
     
         17 . The footwear of  claim 11 , wherein the ground-engaging member is replaceable on the pivot member. 
     
     
         18 . The retractable anti-slip mechanism for a footwear of  claim 11 , wherein the at least one retractable ground-engaging member disposed in the sole of the footwear is located under a ball of a foot. 
     
     
         19 . The footwear of  claim 11 , wherein the at least one retractable ground-engaging member disposed in the sole of the footwear is located under a heel of a foot. 
     
     
         20 . The footwear of  claim 11 , wherein the at least one retractable ground-engaging member disposed in the sole of the footwear is a plurality of ground-engaging members symmetrically disposed in respect of the sole along the pivot member.