Patent ID: 10299976

Abstract:
An electric bed includes a basic unit and a lift unit. The basic unit includes a base, a sliding frame supported on the base, a backrest frame pivotally connected to the sliding frame, a headrest frame pivotally connected to the backrest frame, and a restraint including an end pivotally connected to the base and another end pivotally connected to the backrest frame. The backrest frame includes a lug that includes a slot. The lift unit includes a power element pivotally connected to the sliding frame, a rod operatively connected to the power element, a backrest driver pivotally connected to the rod, a headrest driver pivotally connected to the backrest driver, a backrest lever for pivotally connecting the backrest driver to the backrest frame, a roller supported on the backrest lever, and a threaded bolt inserted in the backrest driver and the slot of the lug of the backrest frame.