摘要:
The invention concerns a muscle-building apparatus for doing press-ups characterised in that it consists of a frame (4), resting on the floor, having two vertical posts (3) supporting two articulated (9) mobile arms (2), with handles (6) and (7) fixed in the end on the arms, then linked via two mobile legs (1) and by their articulations (8) and (10) to a bearing plate (5) supporting a cushion.
摘要:
Device for manually lifting a load with a lever for a cart, suitcase and the like, making it easier to ascend and descend staircases and various obstacles, said device comprising two parts: - a first part comprising: a frame (1) secured to wheels (2), the wheels (2) and the handles (3) being fixed to the frame (1), - a second part comprising: a load support (4) secured to wheels (5), the wheels (5) and a load (12) being mounted in a fixed manner on the load support (4), the second part being able to slide with respect to the first part by the action of a telescopic lever arm (10) in order to ascend a step of a staircase in two phases, the telescopic lever arm (10) being fixed to the handles (3) by an articulation (9), a second articulation (8) connecting the telescopic lever arm (10) to a transmission (6) which is in turn connected by a third articulation (7) to the load support (4) of the second part.
摘要:
The invention concerns a transmission device for bicycles and the like of the type wherein a toothed chain-wheel, driven by the user, transmits the movement to the wheel (1) via a sprocket (13), with an interposed free-wheel device (18). The invention is characterized in that the toothed chain-wheel (4) is mounted on the shaft (2) of the wheel (1) and drives a sprocket (14) on the shaft of which is keyed a second sprocket (15) driving the sprocket (13) of the wheel via planetary gear wheels. The toothed chain-wheel (4) is driven with an interposed free-wheel device, by a sprocket (6) meshing with a toothed sector located at the end of an arm articulated on the machine through its other free end and extending beyond its pivot pin into a lever on the free end of which the user acts.