公开(公告)号：US4568123A

公开(公告)日：1986-02-04

申请号：US636286

申请日：1984-07-31

申请人： Takashi Yasui ,  Hideo Niibori

发明人： Takashi Yasui ,  Hideo Niibori

IPC分类号： A47C7/38 ,  B60N2/48 ,  A47C7/36 ,  A47C1/10

CPC分类号： B60N2/4814 ,  B60N2/4817 ,  B60N2/4823 ,  B60N2002/4897 ,  Y10T292/09 ,  Y10T403/599

摘要： A head-rest vertical adjustment device is disclosed which is provided with a lock mechanism to restrict the vertical movements of a head-rest stay in a guide cylinder into which the head-rest stay is inserted in a manner that it is free to move vertically. This lock mechanism comprises a lock spring of a wire material to be engaged into an engagement groove formed in the head-rest stay from a slit formed in the guide cylinder, and an operation lever to release the lock spring from its locked position. First ends of both the lock spring and operation lever are rotatably mounted onto the same projection provided in the guide cylinder and second ends of these two members are integrally connected to each other.

摘要翻译： 公开了一种头枕式垂直调节装置，其具有锁定机构，用于限制在垂直方向上自由移动的头枕支架插入导向筒中的头枕支架的垂直运动 。 这种锁定机构包括：线材的锁定弹簧，该锁定弹簧将从形成在引导筒中的狭缝接合到形成在头枕支架中的接合槽中;以及操作杆，以将锁定弹簧从其锁定位置释放。 锁定弹簧和操作杆的第一端可旋转地安装在设置在引导筒中的相同的突起上，并且这两个构件的第二端彼此一体地连接。