| 摘要 |
FIELD: medicine. ^ SUBSTANCE: invention relates to bed, in particular to bed for hospital or looking after bed-ridden patients. Bed contains lower frame (1) and upper frame (2), on which placed is bearing surface for mattress. Upper frame (2) is connected to lower frame (1) with possibility of rising and lowering with respect to lower frame by means of one or more executive mechanisms (5, 6), which are brought into action by electroengine. For protection against pinching between upper and lower frames, when lowering upper frame, said bed is provided with. System protecting from pinching contains light source and light receiver, located on the corner of lower frame. Light source sends a ray, which passes completely around and exactly over upper part of lower frame. When a light ray is interrupted, control unit switches off current feeding to engines. ^ EFFECT: creation of bed with more completely embracing system of protection agains pinching. ^ 6 cl, 6 dwg |
