| 摘要 |
PURPOSE: A chair with a rotation selection function is provided to allow a user to easily lock a seat plate and to improve user convenience. CONSTITUTION: A chair with a rotation selection function comprises a spindle (12), a sleeve (14), and a rotation locking device. The spindle is combined with a seat plate and rotates and moves up and down. The sleeve is spaced from the outer periphery of the spindle in a radial direction. The rotation locking device is combined with the seat plate and rotates. The rotation locking device adjusts the interval between the spindle and the sleeve by fastening the sleeve and stops the rotation of the spindle. |
