Speed change apparatus of vehicle

1. A speed change apparatus of a vehicle comprising:

a gear transmission;

a shift lever device arranged in a zone where an operation thereof is achievable from a driver's seat; and

an operation force transmission mechanism for transmitting an operation force of the shift lever device to the gear transmission, wherein

the shift lever device is provided with a detent mechanism for positioning and holding a shift lever at each of a plurality of shift positions,

the detent mechanism includes a recess-formed member having a plurality of recesses, and a detent member biased toward the recess-formed member by an elastic member,

each of the recesses corresponds to a respective one of the shift positions,

the recess-formed member is arranged on the shift lever which is turnable around a center of a shift lever shaft, and

the detent member and the elastic member are arranged on a lever holder for holding the shift lever.

2. The speed change apparatus of the vehicle according to claim 1 , wherein

the shift lever device includes a shift panel; and

the shift panel is provided with a shift groove of approximately straight line shape where the shift lever passes.

3. The speed change apparatus of the vehicle according to claim 1 , wherein

the plurality of the recesses is formed on an outer peripheral end of the recess-formed member in a radial direction of the shift lever shaft, and

the detent member is biased toward inside from outside of the shift lever shaft in the radial direction.

4. The speed change apparatus of the vehicle according to claim 1 , wherein

the detent member is composed of a cylindrical roller pin parallel to the shift lever shaft.

5. The speed change apparatus of the vehicle according to claim 1 , wherein

the operation force transmission mechanism is constituted by a push pull cable.