| 摘要 |
PURPOSE: An automatic headrest is provided to safely and conveniently support the head of a user by simultaneously or independently operating protruded parts formed on the head rest. CONSTITUTION: An automatic headrest comprises an external headrest(50), an internal upper headrest(100), an internal lower headrest(80), cylinders, and cylinder cables. The internal upper and lower headrests are inserted into the cut part of the external headrest and can be moved. The cylinders are foldably formed in order to move the internal upper and lower headrests and are operated by cylinder motors. The cylinder cables are connected to the inside the cylinders and cylinder motors. |
