| 摘要 |
<p>The present invention relates to an ascending and descending unit of a table for a hospital bed comprising a hospital bed (10) having rolling wheels (11), vertical supports (12), a rectangular horizontal frame (13), handles (14), safety handrails (15), and a bed mattress (16); a table (20) located not to cause inconvenience of an activity on the bed; hinges (30) for supporting a rotation which rotationally supporting ascending and descending of vertical supports (21) of the table; first and second driving bodies (41, 42) providing a driving force to ascend the table; first and second electric motors (51, 52) generating rotation power; a first electric screw (61) rotating itself by corresponding to the rotation of the first electric motor (51); a second electric screw (62) rotating itself by corresponding to the rotation of the second electric motor (52); a first weight pendulum; and a second weight pendulum.</p> |
