초록 ▼

A coast control device for a walkie/rider pallet truck locks the position of a steering arm of the truck to prevent movement by a deadman mechanism. The disclosed locking device is a brake: an armature plate mounted to the steering arm; and an electromagnet coupled to a steering head that is operate

A coast control device for a walkie/rider pallet truck locks the position of a steering arm of the truck to prevent movement by a deadman mechanism. The disclosed locking device is a brake: an armature plate mounted to the steering arm; and an electromagnet coupled to a steering head that is operated to activate coasting operation. The brake force can be overcome by an operator to manually apply the truck brake or to reposition the steering arm to a new position where it is again locked. For controlling coasting operation, the brake is manually engaged by an actuator mounted adjacent to or on a grab bar that is to be gripped by an operator riding on the truck. With the actuator so located, coasting operation can be conveniently engaged while the operator is walking beside the truck.

대표청구항 ▼

1. A walkie/rider pallet truck comprising:a steerable wheel; a steerable wheel brake coupled to said wheel; a steering arm coupled to said wheel for steering said wheel and being movable through an arc including a driving arc interposed between a generally vertical braking position and a generally h

1. A walkie/rider pallet truck comprising:a steerable wheel; a steerable wheel brake coupled to said wheel; a steering arm coupled to said wheel for steering said wheel and being movable through an arc including a driving arc interposed between a generally vertical braking position and a generally horizontal braking position; a handle on said steering arm for control of said truck; a deadman mechanism coupled to said steering arm for moving said steering arm into said generally vertical braking position to brake said truck when said handle is released; and a locking device coupled to said steering arm for locking said steering arm in one selected position of at least two selectable positions within said driving arc, said locking device preventing movement of said steering arm from said one selected position by said deadman mechanism when said handle is released.