| 摘要 |
<p>The insert (10) has a frame for form-fit connection with a bedstead, and another frame (2) for retaining a mattress. The frames are arranged parallel to each other. The frames are connected with each other by three precise positioning devices (3) such that one frame is moved to the other frame in a preset tumbling manner. The positioning devices are designed as a cylinder (31) and a three-axis joint (32) i.e. ball-and-socket joint. The joint is arranged in center of the insert. The frames are formed in a stiffened manner. An independent claim is also included for a method for moving a mattress of a bed.</p> |
