| 摘要 |
<p>According to the present invention, a furniture height control system uses a worm, and a worm wheel having excellent decelerating force to fit a disk cam to a rotational shaft of the worm wheel. A height control leg sleeve hole is integrally provided to a cover portion of a worm gear case to guide a height control leg, which is a follower, to vertically reciprocate when an eccentric protrusion provided to the disk cam rotates horizontally inside an eccentric protrusion long hole formed in the height control leg assembled with the eccentric protrusion. The present invention improves economic efficiency and easiness of height control, and does not require an additional locking means or an additional opening means due to a characteristic of a worm gear when compared with a method applying an existing hydraulic method or an existing bevel gear method to a lower portion of the furniture.</p> |
