PURPOSE: To provide the extremely high efficiency of slipless transmission by adjusting eccentrically a driven friction wheel in pressure contact with a drive friction wheel rotating together with an input shaft respectively to an output shaft to interconnect directly both friction wheels through wedge engagement.
CONSTITUTION: When an eccentric cam 12 is pivoted by a lever 16 to align a drive friction wheel 67 with a driven friction wheel 19, both wheels contact each other on the whole peripheries and integrally rotate by a coiled spring 66 with the wedge action of disks 62, 65b causing few slippage. Under such condition, the rotation of an input shaft 30 rotates a planet carrier 29 and a drive rotor 48 and further a driven rotor 18 and a gear 22 through a key 60, shaft tube 61, ring 63 key 64, shaft tube 65 and both friction wheels 67, 19. Also a transmission gear 32 is rotated through an internal transmission gear 26, each planet gear 56 rotates approximately integrally with the input shaft 30 so that the rotational speed ratio of output shaft 41 is 1:1 representing the low condition. Next, when the lever 16 is pivoted in the reverse direction, the output shaft 41 is rotated with aceleration. Thus, extremely high transmission efficiency can be obtained.
TAMURA YOSHITAKA
HIRAI KIYOBUMI
