US 12,114,780 B2
Single-motor electrically powered bed
Huafeng Shan, Zhejiang (CN); Jian Wang, Zhejiang (CN); Shaojun Li, Zhejiang (CN); Chuanxiang Ji, Zhejiang (CN); and Xiaowen Lu, Zhejiang (CN)
Assigned to Keeson Technology Corporation Limited, Jiaxing (CN)
Appl. No. 17/628,213
Filed by Keeson Technology Corporation Limited, Zhejiang (CN)
PCT Filed Apr. 23, 2020, PCT No. PCT/CN2020/086445
§ 371(c)(1), (2) Date Jan. 18, 2022,
PCT Pub. No. WO2021/012733, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 201910677855.0 (CN), filed on Jul. 25, 2019.
Prior Publication US 2022/0248864 A1, Aug. 11, 2022
Int. Cl. A47C 20/04 (2006.01)
CPC A47C 20/041 (2013.01) 7 Claims
OG exemplary drawing
 
1. A single-motor electrically powered bed, comprising: a bed board, a frame, a sliding assembly, a first connecting-rod mechanism, and a driving assembly,
wherein the bed board comprises a first bed board, a second bed board, a third bed board, a fourth bed board, and a fifth bed board, wherein the first bed board, the second bed board, the third bed board, the fourth bed board and the fifth bed board are successively and horizontally arranged on a top of the frame, and the first bed board, the second bed board, the third bed board, and the fourth bed board are successively pivotably connected to one another at junctions;
the first bed board is rotatably connected to the frame by the first connecting-rod mechanism, and is rotatable relative to the second bed board and the frame, driven by the driving assembly; and the second bed board is slidable horizontally relative to the frame by the sliding assembly, with rotating movement of the first bed board and driving the third bed board and the fourth bed board to move horizontally;
wherein the frame further comprises a front frame and a rear frame,
wherein the front frame and the rear frame are pivotably connected to each other; the first bed board and the second bed board are disposed on a top of the front frame, and the third bed board, the fourth bed board, and the fifth bed board are disposed on a top of the rear frame; the second bed board and the third bed board are pivotably connected to each other;
an outer diameter of the front frame is less than an inner diameter of the rear frame, and the sliding assembly is disposed at an inner side of the front frame; and
in response to the first bed board being in a horizontal position, a pivot between the front frame and the rear frame and a pivot at the junction between the second bed board and the third bed board are located at a same axis;
wherein the driving assembly comprises a driving means, a first holder, and a second holder,
wherein one end of the second holder is fixed on a position in a middle of an edge of the first bed board, the edge of the first bed board is adjacent to the second bed board, and another end of the second holder is pivotably connected to one end of the driving means and is in fixed connection with one end of the first holder; another end of the driving means is connected to an edge of the front frame, the edge of the front frame is adjacent to the rear frame; another end of the first holder is in fixed connection with the first bed board; and the driving means moves in a straight line horizontally to drive the first bed board to rotate relative to the second bed board and the front frame.