B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
296/12
B62D 27/00 (2006.01) B62D 33/067 (2006.01)
Patent
CA 1202999
SUSPENSION FOR A TRUCK TILT CAB Abstract of the Disclosure A tilt-cab truck with the cab independently suspended on the main frame. A power device for tilting is connected to the cab and the frame at pivots spaced away from the main cab pivot. On each side of the truck a front suspension bell crank is pivoted to the cab by a main pivot and has an arm extending substantially horizontally back to a pivotal connected to the main frame, with a crank arm extending down from the rear and bearing on one end of a horizontal front air spring that is secured to the main frame at its other end. A leveling valve assembly for maintaining cab height relative to the frame is connected to the front air springs and to a source of air pressure. An anti-roll structure is rigidly connected at each end to the bell crank and extends down below it and then laterally across to the other side of the truck. A pair of lower latch assemblies are each secured to the main frame near the rear of the cab, and a pair of upper latch assemblies are each releasably secured to a lower latch assembly. A pair of horizontal rear links are each pivotally connected at a forward end to the cab and at a rear end to an upper latch assembly, and a pair of rear air springs are each mounted on an upper latch assembly with an upper end bearing against the cab. A leveling valve assembly for each rear air spring is connected to the source of air pressure, for maintaining the cab height relative to the frame. A pair of front damper-snubbers, each adjacent to the main pivot, are operatively interposed between the cab and the main frame, and a pair of rear damper-snubbers, each adjacent to the rear end of one rear link, are interposed between the cab and the upper latch assembly, each damper-snubber has hydraulic cushioning for preventing bottoming out at each end of its stroke.
440510
Penzotti Roger P.
Stone Thomas R.
Paccar Inc.
Smart & Biggar
LandOfFree
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