| 摘要 |
A positional adjustment mechanism for beds allowing the movement of an articulated bed base (1) towards the headboard simultaneously to the raising of the sections of the back, consisting of a movable frame (4) incorporating wheels (5) with rotational capacity and at least one cross bar (7), the articulated bed base (1) being locked together to said movable frame (4), and a rolling base (3) of the wheels (5) to the fixed frame (2), the movable frame (4) internally registering a shaft (9) with rotational capacity on which a motor (10) acts, there being arranged integrally to said shaft (9) at least one connecting rod (11) which is hingedly joined to the fixed frame (2) by means of the arrangement of another connecting rod (6), which is hinged at one end to the fixed frame (2), there being arranged in the opposite end of the connecting rod (11) a connecting rod (12) which is in turn hinged to another connecting rod (13) duly locked together to one of the cross bars (14) of the cervical section of the articulated bed base (1).
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