| 摘要 |
<p>The present invention provides a device to rotate a chair of a table which enables a user to easily sit down by rotating a chair. The present invention has an effect of being economically provided by improving productivity through simplification of a structure, and maximizing the use reliability by firmly maintaining a position in the regular position. According to the present invention, the device to rotate a chair of a table comprises: a′��prime;-shaped fixing frame (8) equipped in the end of a supporting frame (6) connected with a table, and having a rotary space of a connecting frame (7) connected with the supporting frame inside; a lower stopper (12) fixed to the bottom side of the fixing frame (8), having a supporting rod (10) whose upper end has an inclined plane (9) in the center, and having a first stop protruding part (11) protruding while having an interval in all directions on the outer circumferential surface of the lower end of the supporting rod (10); an upper stopper (15) located in the upper part of the lower stopper (12), and having a second stop protruding part (14) fitted and combined with the first stop protruding parts (11) in the bottom side; a rotor (18) fixed by being fitted and combined with a combining groove (16) equipped in the upper side of the upper stopper (15), and connected with and fixed to the connecting frame (7) while having a cam inclined plane (17) facing an upper cross section of the supporting rod (10) inside; and an upper cap (2) having an accommodating groove (19) wherein the upper end of the rotor (18) fixed to the bottom side to be vertically moved, and fixed to the bottom side of the upper end of the fixing frame (8).</p> |
