초록 ▼

For a shopping cart wheel, for example, a toggle brake assembly which can be automatically actuated by an audio frequency signal when the cart is taken out of a designated area. When actuated, a battery-powered solenoid coil of the brake assembly is energized, drawing a coil spring catch away from a

For a shopping cart wheel, for example, a toggle brake assembly which can be automatically actuated by an audio frequency signal when the cart is taken out of a designated area. When actuated, a battery-powered solenoid coil of the brake assembly is energized, drawing a coil spring catch away from a locking position on a toggle. The toggle then drops with a pivotal or axial movement to a braking position against the wheel, either against the outside or inside of the wheel depending on the brake embodiment used. As the wheel rotates in either direction, the toggle wedges or hooks to brake the wheel.

대표청구항 ▼

[ What is claimed is:] [1.] A wheel-and-brake assembly for a vehicle, comprising:a wheel including a hub and a tire mounted on said hub;a cleat stopper mounted on said hub;a toggle mounted in said wheel and non-rotatable relative to a rotation axis of said wheel;a solenoid coil positioned in said wh

[ What is claimed is:] [1.] A wheel-and-brake assembly for a vehicle, comprising:a wheel including a hub and a tire mounted on said hub;a cleat stopper mounted on said hub;a toggle mounted in said wheel and non-rotatable relative to a rotation axis of said wheel;a solenoid coil positioned in said wheel; anda clip which holds said toggle in a non-braking condition relative to said stopper and which releases said toggle from the non-braking condition when said coil is activated, said toggle when released moving to a braking condition engageable with an end of said stopper to brake rotation of said wheel in one direction and engageable with an opposite end of said stopper to brake rotation of said wheel in an opposite direction.