| CPC F16H 39/10 (2013.01) [F16H 47/02 (2013.01); F16H 57/031 (2013.01); F16H 57/043 (2013.01)] | 9 Claims |
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1. A transmission that speed-changes rotational power operatively input from a drive source, the transmission comprising:
a transmission case; and
an HST arranged at a predetermined installation position within the transmission case,
wherein the HST includes a pump shaft, a pump main body supported by the pump shaft in a relatively non-rotatable manner around an axial line with respect to the pump shaft, a pump-side holder supporting the pump shaft in a rotatable manner around the axial line, a motor shaft, a motor main body supported by the motor shaft in a relatively non-rotatable manner around an axial line with respect to the motor shaft, a motor-side holder that supporting the motor shaft in a rotatable manner around the axial line, a center section that is formed with oil paths fluidly connecting the pump main body and the motor main body, and a main plate and a sub-plate sandwiching members out of the center section, the pump-side holder and the motor-side holder that face to each other in a state that the pump main body and the motor main body are arranged between the members,
wherein the transmission case has a peripheral wall and an opening formed in the peripheral wall,
wherein the opening is so sized as to allow, in an assembled state of the HST, insertion of components other than the main plate of the HST,
wherein the HST is configured so that the main plate is detachably connected to an outer surface of the peripheral wall of the transmission case in a state where the HST is arranged at the installation position,
wherein the sub-plate is provided with an engaging portion, and
wherein the transmission case is provided with a mounting seat with which the engaging portion is engaged in a slidable manner so that the HST is guided until the installation position.
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