Wheel restrainer for shopping carts
First Claim
1. A combination of a restrainer and a shopping cart frame having a wheel, comprising:
- a compressible curved strip of resilient metal having a first end, a second end, and a curved midsection,a straight portion adjacent said first end,said straight portion adjacent said first end having means for locking said restrainer into engagement with a frame supported by an axle of said shopping cart wheel,a curved portion adjacent said second end to resiliently press against a perimeter of said wheel to retard the rotation of said wheel, andsaid strip of metal being compressed between said frame supported by an axle of said wheel and a surface of said wheel so that said curved portion exerts a force against said surface of said wheel.
0 Assignments
0 Petitions
Accused Products
Abstract
A restrainer for shopping cart wheels is a strip of stainless steel or other resilient metal, bent into a generally C-shaped curve. The restrainer is compressed and inserted into the space between a shopping cart wheel and its frame; a shoulder and a tab on a straight end of the restrainer engage the wheel frame to hold the strip in place. A curved end of the restrainer bears against the wheel with sufficient force that resulting friction will prevent the cart from rolling freely down an incline of less than about 15°, while allowing the cart to be pushed by shoppers in the usual way. Corrugations in the curved midsection of the strip add stiffness to increase the amount of friction applied to the wheel.
-
Citations
7 Claims
-
1. A combination of a restrainer and a shopping cart frame having a wheel, comprising:
-
a compressible curved strip of resilient metal having a first end, a second end, and a curved midsection, a straight portion adjacent said first end, said straight portion adjacent said first end having means for locking said restrainer into engagement with a frame supported by an axle of said shopping cart wheel, a curved portion adjacent said second end to resiliently press against a perimeter of said wheel to retard the rotation of said wheel, and said strip of metal being compressed between said frame supported by an axle of said wheel and a surface of said wheel so that said curved portion exerts a force against said surface of said wheel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification