including manually towed vehicles and manually powered vehicles such as wheelchairs and the like ordinarily of course the weight of the vehicle chassis 90 and load is mounted on the wheel axles in the case of a wheelchair the user grasps the top of the wheel 92 and pushes it forward or rearward to initiate movement although the wheel afford a mechanical advantage that multiplies the user 39 s force the applied force has to be sufficient to initiate movement of the entire weight of the vehicle and its occupant load just as in the case of any conventional vehicle referring particularly to fig6 a the wheel 92 is essentially a cylinder having an inner periphery 92 a on which ride three idler wheels a follower wheel 94 and a pair of offset wheels 96 and 98 alternatively the idler wheels 94 96 98 may be constructed as pulleys and the inner wheel periphery 92 a notched to constrain lateral movement of the pulleys the load coupling apparatus comprises load support members 100 102 a swinging linkage member 104 and an offset wheel arm 106 which may be integral with swinging linkage member 104 the load support members 100 102 are rigidly fastened to the chassis 90 and to a support plate 108 welded to the axle hub of follower wheel 94 the swinging linkage member 104 is pivotably coupled to the plate 108 on pin joint 110 and the offset wheel arm 106 supports the offset wheels 96 98 on the pins 114 116 at its opposing extremities allowing the swinging linkage member 104 and offset arm 106 pivot as the wheel 92 is displaced with respect to the chassis 90 as shown.