Motor vehicles – Special wheel base – Five or more wheels
Patent
1987-08-07
1989-04-25
Marmor, Charles A.
Motor vehicles
Special wheel base
Five or more wheels
280 961, B62D 6110
Patent
active
048238961
ABSTRACT:
A retractable undercarriage for mounting dual wheels for a large transport vehicle comprising a support member adapted for connection to the vehicle and having a vertically extending leg and an arm member pivotally connected to one end thereof to the lower end of the leg by a special pin connection employing ring bearings. A running gear sub-assembly is connected to the other end of the arm member. First and second mounting blocks are respectively attached to an upper portion of the support member and to the arm member. Each of these blocks has a slot formed therein for receiving a pivot pin, which slot is open at one end. A hydraulic cylinder mechanism extends and retracts the undercarriage by pivoting the arm member. The upper and lower ends of this mechanism are pivotally connected by the pivot pins to the mounting blocks. Threaded fasteners secure the pivot pins in their respective slots. Bolt holes for these fasteners are formed in opposite end sections of the pivot pins and extend diametrically of the pins.
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Paling Drawing No. A3047A illustrating Lower Turntable Support Used in CTEC Elevating Transporter, the drawing being dated Jul. 14, 1986.
Paling Drawing entitled Kenworth Suspension Center Bearing dated Aug. 13, 1986, illustrating Trunnion Assembly Found in 1971 Kenworth Truck.
Four color photographs illustrating known suspension torque arm used on large truck tractor predating the present invention by several years.
Charczuk Bogdan
Evans John G.
Marmor Charles A.
Paling Spring Limited
Weaver Ross
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