B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
14/6.1
B65G 69/28 (2006.01)
Patent
CA 1131857
ABSTRACT OF THE DISCLOSURE A dock leveller is disclosed which has provision for automatically raising dock leveller lip as dock leveller ramp is elevated and for automatically returning clock ramp to raised position preparatory for lowering to a supported cross-traffic position. The dock leveller comprises a ramp pivoted at its rear portion on a support frame, means for biasing the ramp for upward swinging movement, releasable means for retaining the ramp against upward force of the biasing means and a lip pivotally connected at the ramp's forward portion. The support frame has means which supports the pendent lip to support the ramp in cross-traffic position. The lip is also adapted to support the ramp by resting on a vehicle bed to bridge vehicle bed and dock and the lip falls towards its pendent position when a vehicle moves away. Means automatically releases the retaining means as the lip unsupported fall is interrupted by means. Such automatic release means re-engages the retaining means as the ramp rises to permit the lip to clear the interrupt means and fall to its pendent position preparatory to lowering the ramp to its safe supported cross-traffic position. The dock leveller may also have means which transmits a forward pivotal movement of a portion of a member for raising the ramp from a lowered to raised position which in transmitting such pivotal movement to the lip, raises the lip to its extended position.
357317
Blue Giant Equipment Of Canada Limited
Johnson Douglas S. Q.c.
LandOfFree
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