Abstract: With a shaft and a support attached to each other, a gate is swingable about a horizontal axis between a standing position and an open position and detachable from a floor. A holder is included that is manually operable between (i) a first position, in which the holder prevents the shaft and the support from becoming apart from each other and holds the gate in such a manner that the gate is swingable about the axis, and (ii) a second position, in which the holder allows the shaft and the support to become apart from each other and allows the gate to be detached from the floor.

Abstract: A headrest includes a cushion section configured to contact the back of a user's head, wherein the cushion section includes a hollow portion formed therein, and the cushion section includes a bulging portion bulging toward the back of the user's head at a central portion of an opposing surface of the cushion section, the opposing surface facing the back of the user's head.

Abstract: With a shaft and a support attached to each other, a gate is swingable about a horizontal axis between a standing position and an open position and detachable from a floor. A holder is included that is manually operable between (i) a first position, in which the holder prevents the shaft and the support from becoming apart from each other and holds the gate in such a manner that the gate is swingable about the axis, and (ii) a second position, in which the holder allows the shaft and the support to become apart from each other and allows the gate to be detached from the floor.

Abstract: A travel vehicle to which a standard HST 7 or a high-specification HST 8 are capable of being selectively mounted includes a body frame structure to which a transmission 6 is fixed and the standard HST 7 or the high-specification HST 8 is fixable rearward of the transmission 6. The transmission 6 includes a rear surface provided with a common connected section 60 connectable to a standard connection section 70 provided on a front surface of the standard HST 7 and a high-specification connection section 80 provided on a front surface of the high-specification HST 8.