Method for driving a wheeled carriage

Details Method for driving a wheeled carriage Method for driving a wheeled carriage

2006-03-07

2006-03-07

Morris, Lesley D. (Department: 3611)

Motor vehicles

Steered by walking attendant

Handle movement controls vehicle drive

C180S015000, C180S065510

Reexamination Certificate

active

07007765

ABSTRACT:
A powered wheeled carriage includes a patient support and a wheeled base. An auxiliary wheel mechanism includes an auxiliary wheel spring support for biasing an auxiliary wheel into contact with a floor. Operating a control apparatus moves the auxiliary wheel away from the floor. A drive handle pivots about a single axis to control a drive motor that powers the auxiliary wheel. The drive handle controls driving of the wheeled carriage in forward and rearward directions. A decision/drive circuit ramps the speed of the wheeled carriage for a few second after start-up to prevent a jerking motion. A display/control panel displays the condition of the carriage brake and the condition of the auxiliary wheel to assist an operator.

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