| 摘要 |
Coupling links coupled at one end to terminal ends of the working belt and rotatably coupled at the other end to the conveyance body, the coupling links being configured to rotate when the seat cushion body rotates with a front end portion thereof acting as a pivot and both end portions of the working belt move in an up-and-down direction, and a working link mechanism provided in a manner to operate in interlock with the rotation the coupling link, the working link mechanism being configured to shift a brake member in accordance with a direction of rotation of the coupling link into a state that the brake member is separated from a rear wheel to release braking, or into such a state that the brake member is brought into contact with the rear wheel to apply braking. |
