| 摘要 |
A traction type transmission characterized in that a planetary roller mechanism is constituted by a sun roller, a plurality of planetary rollers disposed equidistantly around the sun roller and an exterior ring disposed outside the planetary rollers, the sun roller is connected to a high speed shaft while either the exterior ring or the planetary shafts of the planetary rollers are connected to a low speed shaft through a rotary member; the planetary rollers are strongly pressed to the outer periphery of the sun roller in the presence of an oil and two slope surfaces of the inner periphery of the exterior ring are strongly pressed to both shoulder portions of the outer periphery of these planetary rollers in the presence of an oil, respectively.
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