| 摘要 |
The present invention relates to a headrest moving device and, more specifically, relates to a headrest moving device. A plurality of tooth forms along a width direction and a longitudinal direction form a first gear and a second gear. When the first gear and the second gear are engaged, the tooth forms in a width direction and the tooth forms in a longitudinal direction are engaged to each other. Therefore, the tooth forms are provided to finely adjust a position of the headrest, and simultaneously, the headrest moving device can endure a high load. Moreover, the headrest moving device has excellent durability since the headrest moving device can operate even if a portion of the tooth forms is escaped from the engaged form. |
