| 摘要 |
<p>A transmission apparatus includes an interlock member (15A or 15B) having a restraining portion (16) which, while fork heads (21 A to 21 D) are at neutral positions, extends in the right-angled direction along a notch (21c) of the tip end (21a) of each fork head (21A to 21D). The restraining portion (16) has a gap (17) into which the tip end of each fork head extends. A dimensional relationship among an outer span (H1) of the tip end of each fork head, an inner span (H2) of the notch, an outer span (P1) of the restraining portion, an inner span (P2) of the restraining portion, a width (I) of the tip end of the shift and select member, and a shift stroke (S) of each fork head is set to be: H2 - P1 ≧ 0; P2 - H1 + 2S ≧ 0; and H2 - 2S - I ≧ 0.
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