| 摘要 |
PROBLEM TO BE SOLVED: To provide a change gear capable of restricting an increase in size in a center line direction of a rotary member.SOLUTION: A change gear 13 capable of changing a change gear ratio of a second pinion shaft 22 to a spindle 23, which are arranged in substantially parallel with each other, comprises: a low speed drive gear 27 provided in the second pinion shaft 22; a low speed driven gear 31 provided in the spindle 23 to mate with the low speed drive gear 27 so as to set up a first change gear ratio; a high speed drive gear 28 provided in the second pinion shaft 22; and a high speed driven gear 32 provided in the spindle 23 to mate with the high speed drive gear 28 so as to set up a second change gear ratio, in which the external diameter of the high speed driven gear 32 is smaller than that of the low speed driven gear 31; and the high speed driven gear 32 is movable along a center line C1 of the spindle 23.SELECTED DRAWING: Figure 3 |
