B - Operations – Transporting – 60 – R
Patent
B - Operations, Transporting
60
R
B60R 21/34 (2006.01) B62D 47/02 (2006.01) B60R 21/00 (2006.01)
Patent
CA 2087329
SAFETY BARRIER FOR A SCHOOL BUS Abstract A motor driven barrier is disclosed for installation on the front end of a school bus. An elongate barrier member is carried in a stowed position adjacent the bus front bumper and upon deployment protrudes forwardly from the bus in approximate alignment with the right side of the vehicle. A motor housing includes brackets for bumper attachment. A reversible electric motor powers a driven shaft through 90° or so to position the barrier. A lost motion drive includes a spiral spring which yields in the event an obstruction is encountered by the arm. A second spiral spring cooperates with the first mentioned spring to locate the barrier in an operatively disposed position forward of the vehicle and permits momentary displacement of the barrier. A pair of switches serve to establish polarity reversing motor circuits with the switches in relay controlled circuits with a driver actuated vehicle door control switch. A barrier mounted light is in circuit with the vehicle's amber light system.
Fetherstonhaugh & Co.
Freeman Lowell J. D.
LandOfFree
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