Motor vehicles – With means for promoting safety of vehicle – its occupant or... – Responsive to engagement of portion of perimeter of vehicle...
Patent
1987-12-21
1989-02-07
Mitchell, David M.
Motor vehicles
With means for promoting safety of vehicle, its occupant or...
Responsive to engagement of portion of perimeter of vehicle...
250206, 293 4, B60K 2810
Patent
active
048025488
ABSTRACT:
A flexible bumper 11, 14 is provided on an automatic guided vehicle 10 carrying an emitter/receiver photocell 21 thereon in electrical connection with motor circuit 28 and brake circuit 29. When photocell 21 is actuated by a suitable relay, the photocell beam signal 27 (FIG. 1) is transmitted through fiber optic cables 22, 23, emitter 25 and receiver 26 to permit propulsion motor operation through motor circuit 28 and vehicle brake release through brake circuit 29. If vehicle 10 strikes an obstruction safety bumper 11 is deflected, causing the aligned emitter-receiver beam 27 to be interrupted. This interruption of the beam signal to photocell 21 triggers motor circuit 28 to stop the motor and causes brake circuit 29 to set the vehicle brakes. When the obstruction is removed, the bumper deflects back to its normal position and light beam 27 is again transmitted to photocell 21 to permit brake release and motor operation to resume.
Various emitter-receiver locations for both unidirectional and bi-directional vehicles as illustrated in the several drawing figures are disclosed. In all embodiments of the invention, at least one of the emitter and receiver is carried by the flexible safety bumper.
REFERENCES:
patent: 2920713 (1960-01-01), Paradise
patent: 3496317 (1970-02-01), Reed
patent: 3664701 (1972-05-01), Kondur
patent: 3901346 (1975-08-01), Kohls et al.
patent: 4137984 (1979-02-01), Jennings et al.
patent: 4299496 (1981-11-01), Lord
patent: 4363376 (1982-12-01), Sjoberg et al.
patent: 4397372 (1983-08-01), De Kraker
patent: 4730690 (1988-03-01), McNutt et al.
Mitchell David M.
Munck Automation Technology, Inc.
Nelson Wallace J.
Weaver Ross
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