B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
280/163
B62D 61/12 (2006.01) B60G 17/02 (2006.01) B62D 63/06 (2006.01)
Patent
CA 1283673
ABSTRACT IN A TOOL FOR TRANSPORTING ITEMS, IT IS KNOWN TO HAVE A SUSPENSION WHICH IS INDEPENDENT OF THE MAIN TRAILER FRAME, BUT WHICH SECURILY AND EVENLY ELEVATES OR LOWERS THE MAIN TRAILER FRAME FOR TRANSPORTING OR LOADING OPERATIONS. THIS INVENTION USES A MECHANICAL SYSTEM TO RAISE AND LOWER THE MAIN TRAILER FRAME IN AN EVEN MANNER. IT DIFFERS FROM OTHER SYSTEMS IN THAT THE ENTIRE TRAILER FRAME AND LOAD IS EVENLY ELEVATED AND LOWERED BY THE LIFTING SYSTEM OF THE SUSPENSION ITSELF. SPECIFICATION THIS INVENTION RELATES TO A MECHANICALLY OPERATED SELF ELEVATING AND SUSPENSION SYSTEM USED IN TRAILER CONSTRUCTION IT IS COMMON FOR SUCH DEVICES TO DEPEND ON A LIFTING SYSTEM FOR A CARGO DECK WHICH OPERATES INDEPENDENT OF THE TRAILER ITSELF. THIS NECESSATES A SUBSTANTIAL DECK FRAME IN ORDER TO WITHSTAND THE LIFTING (OR SKIDDING) FORCES. THIS INVENTION, BY UTILIZING THE TRAILER MAIN FRAME AS THE LIFTING YOKE, ALLOWS THE DECK TO BE OF LIGHT CONSTRUCTION, SIMILIARLY, AS THERE IS NO CONCENTRATED LOAD POINTS THE DECK CAN BE CONSTRUCTED WITH A LOW PROFILE. THIS SYSTEM ALLOWS THE ADVANTAGE OF LOW LOADING HEIGHT AND ANGLE, WITHOUT LOSS OF SPRING SUSPENSION. SYSTEM WHICH OPERATE WITH INDIVIDUAL LIFTING ELEMENTS TEND TO OPERATE IN AN ERRATIC AND UNEVEN MANNER WHICH MAKES THEM UNPOPULAR AND DIFFICULT TO USE BY UTILIZING THE MECHANICAL LINKAGE OF THIS INVENTION, ALL SUCH DIFFICULTIES SHOULD BE OVERCOME. (PLEASE REFER TO THE DRAWINGS) IN DRAWINGS WHICH ILLUSTRATE EMBODIMENTS OF THE INVENTION, FIGURE (1) IS A SCHEMATIC ISOMETRIC DRAWING OF THE INVENTION SYSTEM. FIGURE (2) IS A TOP ONE-HALF VIEW OF A TWO WHEELED TRAILER ILLUSTRATING THE TRAVEL OR ELEVATED POSITION, FIGURE (3) IS A SECTIONED ELEVATION OF A TWO WHEELED TRAILER ILLUSTRATING THE TRAVEL OR ELEVATED POSITION, FIGURE (4) IS A SECTIONED ELEVATION SIMILIAR TO FIG.3 SHOWING THE LOAD OR LOWERED POSITION, FIGURE (5) IS A TOP ONE-HALF VIEW OF A TANDEM WHEEL TRAILER IN THE TRAVEL OR ELEVATED POSITION, AND FIGURE (6) IS A SECTIONED ELEVATION OF A TANDEM WHEEL TRAILER IN THE TRAVEL OR ELEVATED POSITION.
564355
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