Abstract: A transmission in which two gears can be selected at the same time is provided without the need to greatly increase the size of the transmission. The transmission comprises a plurality of gear change members arranged for moving in a predetermined shifting direction to select a gear, and a shift operating member which is capable of moving in a selecting direction through notches formed in the gear change members. The shift operating member has an engaging portion capable of engaging with one of the gear change members via the corresponding notch to move the gear change member in the shifting direction. A gap between adjacent gear change members in the selecting direction is larger than a thickness of the engaging portion in the selecting direction.

Abstract: A transmission capable of preventing situations in which an inappropriate gear is selected is provided while suppressing increases in the size of the transmission. Movement of gear change members for selecting a gear in a shifting direction is inhibited by inhibiting members provided on the outer sides of both ends of the gear change members, and the inhibiting members are provided with grooves that allow a gear change member that is engaged with a shift operating member to move in the shifting direction. Recess portions of the gear change members allow the inhibiting members to move in a selecting direction when the gear change members are in a gear selective position. Movement of the gear change member that is in the gear selective position and not engaged with the shift operating member to a gear non-selective position is inhibited by an engagement between the inhibiting member and the recess portion.