| 摘要 |
<p>The device has a casing (2) equipped with a notched wheel (5) inserted in an opening (11), where a rotation shaft of an armrest is introduced in the wheel while attaching the armrest with the notched wheel. A blocking unit (6) is mounted on the casing to cooperate with the notched wheel and to solidify the armrest in an intermediate position. The shaft of the blocking unit is parallel to a shaft of the armrest, and a protection part (3) is arranged among the blocking unit, the notched wheel and a truncated wheel (4).</p> |
