US 12,283,869 B2
Rotating body for rotation restricting mechanism, and actuator
Koji Shinohara, Shizuoka (JP); and Takumi Hirano, Shizuoka (JP)
Assigned to YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata (JP)
Filed by YAMAHA HATSUDOKI KABUSHIKI KAISHA, Iwata (JP)
Filed on Jul. 15, 2022, as Appl. No. 17/866,307.
Application 17/866,307 is a continuation in part of application No. PCT/JP2021/001431, filed on Jan. 18, 2021.
Claims priority of application No. PCT/JP2020/001529 (WO), filed on Jan. 17, 2020.
Prior Publication US 2022/0352787 A1, Nov. 3, 2022
Int. Cl. F16D 63/00 (2006.01); H02K 7/102 (2006.01)
CPC H02K 7/102 (2013.01) [F16D 63/006 (2013.01); F16D 2200/0017 (2013.01); F16D 2200/0021 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A rotation restricting mechanism, comprising:
a rotation-restricting-mechanism-rotating-body; and
a fixed restricting member configured to restrict rotation of the rotation-restricting-mechanism-rotating-body, wherein
the rotation-restricting-mechanism-rotating-body includes:
a plurality of radial-support parts, each extending in a radial direction, and having an inner end portion and an outer end portion respectively at an inner end and an outer end of said each radial-support part in the radial direction, the inner end portions of the radial-support parts being connected to a rotator that restricts rotation, each of the radial-support parts being of a beam shape;
a plurality of first-circumferential-connecting parts, each connecting the inner end portions of two of the radial-support parts that are mutually adjacent, each of the first-circumferential-connecting parts being of a beam shape;
a plurality of second-circumferential-connecting parts, each connecting the outer end portions of two of the radial-support parts that are mutually adjacent, each of the second-circumferential-connecting parts being of a beam shape, the plurality of second-circumferential-connecting parts forming a polygonal shape; and
a plurality of engaging protrusions, respectively extending outward in the radial direction from the outer end portions of the plurality of radial-support parts, the plurality of engaging protrusions being so formed that an interval between the engaging protrusions that are mutually adjacent in a circumferential direction out of the plurality of engaging protrusions has a distance that, when the fixed restricting member is at a position by which the rotation of the rotation-restricting-mechanism-rotating-body is restrictable, enables relative movement of the fixed restricting member in the circumferential direction between the adjacent engaging protrusions; and
the fixed restricting member is configured to engage with the rotation-restricting-mechanism-rotating-body by moving in an axial direction of the rotation-restricting-mechanism-rotating-body.