US 11,752,052 B2
Transmission device for lifting sickbed
Cheng-Hung Hsu, New Taipei (TW)
Assigned to NANTONG SHUNLONG PHYSICAL THERAPY EQUIPMENT CO., Rugao (CN)
Filed by NANTONG SHUNLONG PHYSICAL THERAPY EQUIPMENT CO., LTD., Rugao (CN)
Filed on Sep. 9, 2021, as Appl. No. 17/470,553.
Prior Publication US 2023/0072650 A1, Mar. 9, 2023
Int. Cl. A61G 7/012 (2006.01); A61G 7/018 (2006.01); A47C 19/04 (2006.01); A61G 7/002 (2006.01); F16H 57/023 (2012.01); F16H 57/038 (2012.01)
CPC A61G 7/012 (2013.01) [A47C 19/04 (2013.01); A47C 19/045 (2013.01); A61G 7/002 (2013.01); A61G 7/018 (2013.01); F16H 57/023 (2013.01); F16H 57/038 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A transmission device for lifting a sickbed being fixed on a head mounting or a bed end of the sickbed and comprising:
a gear seat one-piece formed and including a first conduit extending and communicating along a horizontal axis, a second conduit perpendicular to and orthogonal with the first conduit, a first opening defined on a first side of the first conduit, a receiving orifice defined on a second side of the first conduit, and a second opening formed on an outer end of the second conduit, wherein the first conduit is in communication with the second conduit;
a cover covered on the first opening of the gear seat;
a power input assembly including an input shaft rotatably connected in the first conduit, a first bevel gear connected on the input shaft, wherein the input shaft of the power input assembly is rotatably accommodated between the receiving orifice of the gear seat and the cover; and
a power output assembly including an output shaft rotatably connected in the second conduit, a second bevel gear connected on the output shaft, and a support element received and fixed in the second conduit from the second opening, wherein the output shaft of the power output assembly rotates with respect to the support element, the support element has multiple reinforcement ribs surrounding around an outer wall of the support element and configured to abut against an abutting fence of the second conduit, and the second bevel gear meshes with the first bevel gear;
wherein a diameter of the first opening is larger than an outer diameter of the first bevel gear, and a diameter of the second opening is larger than an outer diameter of the second bevel gear.