| 摘要 |
The seat includes a seat cushion (16) whose rear or front section or both are coupled via a link mechanism (22,28) with a base frame (14) in a manner that can be lifted and lowered, whereby through joining of the link mechanism (22,28) to a control shaft (40) for height adjustment that can be rotated without any limitation, coupling of one of the rocking ends of a bell crank (28) which repeats a rocking motion, interlocked with the rotation of the control shaft (40), to the seat cushion (16), and joining of the other rocking end to the control shaft (40) via a crank, it is possible to adjust the height of the rear section, front section, or both, of the cushion seat between the lowest position and the highest position, for every rocking operation of the bell crank (28). |
