| 摘要 |
<p>In a dual cavity toroidal type continuously variable transmission comprises, inward projections integral with a transmission case are positioned between two output discs and formed with threaded bolt holes directed toward an open end of the transmission case. An output gear housing is coaxially installed in the transmission case and secured to the inward projections by means of bolts which are screwed into the threaded bolt holes. The threaded bolt holes are arranged on a first imaginary circle which is coaxial with a second imaginary circle described by an outer periphery of the output discs. The first imaginary circle is greater than the second imaginary circle in diameter. Splines formed on an inner wall of the transmission case for carrying driven plates of a backward brake of a forward/backward switching mechanism are so arranged and constructed that tops of ridges of the splilnes are arranged on a third imaginary circle which is coaxial with the first imaginary circle and smaller than the same in diameter. Any splines which would overlap with the threaded bolt holes when viewed from the open end of the transmission case are not provided.</p> |
