Electric hand control, especially for electrically adjustable hospital and care beds
An adjustable, nursing bed technology, used in hospital beds, hospital equipment, surgery, etc., can solve the problem of difficult to feel whether the switch is actuated or damaged
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[0015] Embodiments of the present invention relate to hand controls for electrically adjustable nursing and hospital beds that have actuators for raising and lowering the backrest and footrest and are also capable of raising and lowering the entire bed. For this purpose, the hand control is equipped with keys arranged in pairs, one of which is used for ascending and the other for descending.
[0016] The hand control comprises a housing 1 in which is mounted a printed circuit with touch switches 2 and above a plate with tongue-like keys 3 in the basic form of circular blocks 4 at the ends of struts 5 . The top surface of the housing is provided with a covering foil 9 with graphics 3' for delimiting the keys and their functions.
[0017] As can be seen in the detailed view in FIG. 4 , the key 3 is formed with elastic legs 6 . By pressing the key, the elastic leg will immediately press the actuating part 7 of the touch switch, thereby creating an electrical contact. Continued ...
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