A - Human Necessities – 63 – C
Patent
A - Human Necessities
63
C
A63C 17/02 (2006.01) A63C 17/12 (2006.01)
Patent
CA 2063916
A footboard of a skateboard is rhythmically swung around a longitudinal axis (O) of swinging lying in suspensions (4,5) of the skateboard with respect to a reference plane which at riding straight is parallel to the riding path, and at turning is, with respect to the direction of riding, slanted to one or the other side. The amplitude (A) and the frequency of swinging are mutually coordinated so that swinging does not result in substantial meandering of the skateboard. A gearing (9, 10) is attached to each end of a socket shaft housing (8) of the suspension (4,5) of the skateboard and the housing encases a roller shaft (11). The gearings are designed as mirror images of each other. A gearing (9, 10) has an essentially three-part housing assembly, which includes a mounting casing (13), an upright intermediate wall (16), a mounting cover (17) and a train-type gearing including a toothed rack (19) as a driving constituent and a gear (25) bound to the roller shaft (11), as a driven constituent. In addition to the roller shaft (11), two further inner shafts (14, 15) form the gearing, these shafts (14, 15) each supporting two gears (20, 21; 23, 24), gear (20) mating the toothed rack (19) and gear (24) mating the driven gear (25). The gear (21) is indirectly connected to the respective shaft (14) by means of an overrunning clutch (22), and shaft (14) is rotationally-elastically bound to the stationary mounting casing (13) of the gearing by means of a suitably pre-stressed helical torsion-spring (25), which encompasses the shaft (14).
Borden Ladner Gervais Llp
Sobocan Boris
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