| 摘要 |
<p>PROBLEM TO BE SOLVED: To simplify operation by forming a sitting surface of a seat to be oscillated forward, and gradually tilting forward an angle of the sitting surface with lateral turning of a seat. SOLUTION: When an occupant seated on a seat 1 of a motor-driven tricycle rises, the seat 1 directed to the front to the car body is turned either to the left or to the right. At this time, a caster 22 of the lower surface of the front of the seat 1 is moved along the inclination of an inclined plate 17 to gradually tilt forward a sitting surface 2 of the seat 1. When the seat 1 is turned to such an angle that the occupant is easiest to rise, the inclination of the inclined plate 17 becomes naught, forward tilting of the sitting surface 2 is stopped, and then the caster 22 abuts to a stop plate to stop turning of the seat 1. At this time, the sitting surface 2 of the seat 1 is kept in the forward tilted state, so that the center of gravity of the body of an occupant is shifted forward to facilitate rising. Thus, only by turning the seat 1, the sitting surface 2 can be tilted forward, and with such tilting, rising of the occupant is supported so as to simplify the operation.</p> |
