초록 ▼

A turn wheel locking device for use with shopping carts having at least one turn wheel. The locking device functions to automatically disable the cart when it is removed from a prescribed area by locking the turn wheel in a turned configuration so that the cart can travel only along a generally circ

A turn wheel locking device for use with shopping carts having at least one turn wheel. The locking device functions to automatically disable the cart when it is removed from a prescribed area by locking the turn wheel in a turned configuration so that the cart can travel only along a generally circular path.

대표청구항 ▼

[ What is claimed is:] [1.] A turn wheel locking apparatus for use with a wheel assembly of a vehicle usable within an area, said vehicle having a wheel rotatable about a first generally horizontal axis and also rotatable about a second generally vertical axis, said turn wheel locking apparatus func

[ What is claimed is:] [1.] A turn wheel locking apparatus for use with a wheel assembly of a vehicle usable within an area, said vehicle having a wheel rotatable about a first generally horizontal axis and also rotatable about a second generally vertical axis, said turn wheel locking apparatus functioning to lock in the wheel against rotation about the second axis, said apparatus comprising:(a) an engaged member rotatable with the wheel assembly about the second axis, said engaged member having a surface;(b) engagement means engagable with said surface of said engaged member for engagement therewith to block rotation of said engaged member; and(c) actuator means associated with said engagement means for moving said engagement means into engagement with said surface of said engaged member, said actuator means comprising:(i) a drive arm having a first end connected to said engagement member and a second end, said second end being movable between first and second locations to move said engagement member into and out of engagement with said engaged member; and(ii) drive means operably associated with said drive arm for moving said drive arm between said first and second locations said drive means comprising a shaft operably coupled with said second end of said drive arm and means for rotating said shaft.