B - Operations – Transporting – 61 – D
Patent
B - Operations, Transporting
61
D
105/225
B61D 23/02 (2006.01)
Patent
CA 1156875
Abstract STEP-PLATFORM OPERATOR A step-platform operator 17 for transit vehicles for driving a step 19 and a platform 18 between open and closed positions, including a reversible drive motor 42 driving the step and platform through a lever and linkage, providing differential motion between step and platform during the last portion of closing cycle and initial portion of opening cycle, allowing a mechanical interlock between step and platform in fully closed position. Both platform and step are driven from a single drive unit. Additionally, the lever and linkage assembly utilizes the weights of the platform and the step to counterbalance each other and allow the use of a low power reversible drive motor to power the system.
358758
Baker Harold C.
Vapor Corporation
LandOfFree
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