US 12,281,956 B2
Automatic balancer
Kelvin Woltring, Portland, OR (US); William Kernan, Portland, OR (US); Joseph Canfield, Portland, OR (US); and Jeremy Rose, Portland, OR (US)
Assigned to TOKYO SEIMITSU CO., LTD., Tokyo (JP)
Filed by Tokyo Seimitsu Co., Ltd., Tokyo (JP)
Filed on Jul. 30, 2024, as Appl. No. 18/789,239.
Application 18/789,239 is a continuation of application No. PCT/JP2022/045623, filed on Dec. 12, 2022.
Claims priority of provisional application 63/304,971, filed on Jan. 31, 2022.
Prior Publication US 2024/0385067 A1, Nov. 21, 2024
Int. Cl. G01M 1/36 (2006.01)
CPC G01M 1/36 (2013.01) 4 Claims
OG exemplary drawing
 
1. An automatic balancer comprising:
a balance head configured to rotate integrally with a rotating body around a rotation axis of the rotating body, the balance head including a balance correction mechanism which is electric and configured to correct imbalance of the rotating body, and a case having a cylindrical outer peripheral surface parallel to the rotation axis and configured to house the balance correction mechanism;
a stator provided separately from the balance head and having a shape which is along a circumferential direction of the outer peripheral surface with a clearance from the outer peripheral surface, the stator electrically connected to a controller of the balance head; and
a rotor part provided at a position where the rotor part faces the stator on the outer peripheral surface and configured to rotate integrally with the balance head, the rotor part having a shape along the circumferential direction of the outer peripheral surface and electrically connected to the balance correction mechanism, wherein
the stator and the rotor part are configured to perform wireless communication therebetween, and
the stator and the rotor part face each other in an axial direction of the rotation axis,
wherein the stator is formed in a ring shape along the circumferential direction of the outer peripheral surface, and is loosely fitted to the outer peripheral surface.