B - Operations – Transporting – 60 – G
Patent
B - Operations, Transporting
60
G
B60G 3/12 (2006.01) B60G 11/15 (2006.01) B60G 11/18 (2006.01)
Patent
CA 2259024
It is a swing-arm suspension system design to be used on but not limited to any type of trailer or boat. The swing-arm suspension system can be pined at different locations through a 75-degree arch to accommodate height settings for the application; the load resisting force is supplied by a torsion coil spring. The swing-arm suspension system design consists of the following pieces. A main shaft supported at both ends by bearings or bushings, housed in the intended application. A length of pipe, square tubing or solid stock is the swing-arm that is fixed by one end to the main shaft, at the opposite end it has a spindle/hub assembly fixed to it for wheel mounting. The torsion coil spring slides over the main shaft to encompass it. The swing-arm adjustment plate is then pushed on the main shaft along with wear washers. The torsion coil spring butts up to the swing arm at one end and held in place by retaining blocks, the opposite end of the torsion coil spring butts up to the swing-arm adjustment plate and attached to it by a spring retainer bracket. The swing-arm adjustment plate, which is free turning on the main shaft, rotates inside an adjustment plate locator bracket which has a hole drilled through it to correspond with holes drilled in the swing-arm adjustment plate. The adjustment plate locator bracket is fixed to the application that the suspension system is installed on. The holes in the swing- arm adjustment plate are at different locations along its 75 degrees of rotation. A pin is inserted through aligned holes in the swing-arm adjustment plate and the adjustment plate locator bracket to retain the suspension system at any given position for height adjustment of the application. When a load is applied to make the system work, the main shaft and swing-arm/hub assembly rotate in the bearings or bushings. The load is applied through the torsion coil spring to the pined swing-arm adjustment plate and adjustment plate locator bracket, keeping that end of the torsion coil spring from turning. The travel of the swing-arm is regulated by the amount of twist the torsion coil spring endures due to the load applied through it by the swing-arm/hub assembly at one end, and it's opposing end, which is held firmly by the pined swing-arm adjustment plate and adjustment plate locator bracket. The torsion coil spring twists, resisting the load, to a point where it can be twisted no farther and it stops.
Draper Darren A.
Mackay David T. N.
Draper Darren A.
Mackay David T. N.
LandOfFree
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