| 摘要 |
A seat back adjustment means utilizing a pivoted arm between the seat part and the back part and a rack and pinion arrangement at one end of the arm connects to one of the parts to provide an effective change of length of the arm so as to thereby adjust the angle of the seat back. Preferably the rack is formed in a rear portion of an arcuate slot such that weight against the seat back tends to hold the teeth of a pinion member in the rack portion. |
