Gear motor used to extend safety device on school bus

Details Gear motor used to extend safety device on school bus Gear motor used to extend safety device on school bus

2006-04-25

2006-04-25

Hofsass, Jeffery (Department: 2636)

Communications: electrical

Land vehicle alarms or indicators

For school bus

C310S04000R, C310S083000, C340S436000

Reexamination Certificate

active

07034667

ABSTRACT:
In a deployment apparatus for extending a safety device from a school bus, the safety device is attached to a connector which is rotated about a pivot pin that is turned by a friction clutch driven by an output shaft. The safety device may be either a guard arm on a front bumper or a stop sign on a side of the school bus. The present invention is an improvement, i.e. an L-shaped bracket and a gear box are integrally molded together into a unitary structure. Gears inside the box turn the output shaft and an electric motor, operatively connected to the gear box, drives the gears. Furthermore, the L-shaped bracket has closed-end elongated slots through which fasteners extend to secure the unitary structure to an inside wall of the deployment apparatus. Because the L-shaped bracket and the gear box form a unitary structure, vibrations and constant jarring caused by the school bus do not separate the L-shaped bracket from the gear box, as may occur in the prior art devices which have an L-shaped bracket and a separate gear box bolted together.

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