Wheeled object, such as by the frame bed (26) is moved by means of a separate drive device (10). The entire drive system including a drive wheel of the motor drive (15) (10) has dimensions which can be substantially completely accommodated in the space defined between the lower surface and the floor of the bed, such It is moved to a space. Thereafter, the upper surface of the driving device (21) is moved engage the lower surface and the force transmitting engagement of the bed or body, drive wheel (15) is driven engagement with the supporting surface or floor is moved. Then, the control unit of another body in communication with the driving wheel of the motor drive (24) is actuated, it energizes the driving means, capable of moving the object. Drive device, substantially does not extend beyond the contour of the bed (26) or the object, maneuverability is obtained which is remarkably improved.FIELD 3ベッド(26)のようなホイール付き物体は別体の駆動装置(10)を用いて移動される。モータ駆動の駆動ホイール(15)を含む駆動装置(10)の全体は、ベッドの下面と床面との間に画定された空間内に実質的に完全に収容され得る寸法を有し、そのような空間に移動される。その後、駆動装置の上面(21)は移動されてベッド又は物体の下面と力伝達係合し、駆動ホイール(15)は移動されて支持面又は床と駆動係合する。次いで、モータ駆動の駆動ホイールと通信する別体の制御ユニット(24)が作動されて、駆動手段に通電し、前記物体を移動させ得る。駆動装置は、実質的に、ベッド(26)又は物体の輪郭を越えて延在しないので、著しく向上した操縦性が得られる。【選択図】図3
