US 12,435,758 B2
Bearing unit and motor
Masatomo Kumashiro, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 18/572,254
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed May 27, 2022, PCT No. PCT/JP2022/021827
§ 371(c)(1), (2) Date Dec. 20, 2023,
PCT Pub. No. WO2023/276515, PCT Pub. Date Jan. 5, 2023.
Claims priority of application No. 2021-109788 (JP), filed on Jul. 1, 2021.
Prior Publication US 2024/0229862 A1, Jul. 11, 2024
Int. Cl. F16C 27/02 (2006.01); F16C 33/66 (2006.01); F16C 35/02 (2006.01); H02K 5/167 (2006.01); H02K 7/08 (2006.01)
CPC F16C 27/02 (2013.01) [F16C 33/6648 (2013.01); F16C 35/02 (2013.01); H02K 5/1672 (2013.01); H02K 7/083 (2013.01); F16C 2360/46 (2013.01); F16C 2380/26 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A bearing unit that supports a rotating shaft, the bearing unit comprising:
a frame including a tubular body;
a bearing disposed in the frame; and
a pressing spring that is disposed in the frame and presses the bearing, the pressing spring including a positioning part that comes into contact with an inner surface of the tubular body to determine a position of the pressing spring, wherein:
the positioning part comprises one or more protrusions protruding toward the inner surface of the tubular body,
each of the one or more protrusions includes a first plate part protruding toward the inner surface of the tubular body and a second plate part extending along the inner surface of the tubular body from a distal end of the first plate part, the second plate part being opposed to the inner surface of the tubular body,
a groove, into which the second plate part is fitted, is provided on the inner surface of the tubular body,
the groove comprises an opening into which the second plate part is inserted, and a pair of side walls facing each other across the opening, and
the pair of side walls face the second plate part and restrict rotation of the second plate part in a rotational direction of the rotating shaft.