发明名称 |
Joint device and motor |
摘要 |
A joint device includes a drive rotor fixed to a drive shaft, a driven rotor fixed to a driven shaft, and a ring-shaped buffer located between the drive rotor and the driven rotor. The drive rotor includes a drive engagement portion that projects toward the driven rotor in an axial direction. The driven rotor includes a driven engagement portion that projects toward the drive rotor in the axial direction. The buffer includes an outer surface, which includes a first engagement recess and a second engagement recess that are recessed toward a radially inner side. An outer diameter of a bottom surface of the second engagement recess is smaller than an inner diameter of the driven engagement portion or an outer diameter of a bottom surface of the first engagement recess is smaller than an inner diameter of the drive engagement portion. |
申请公布号 |
US9574616(B2) |
申请公布日期 |
2017.02.21 |
申请号 |
US201514638687 |
申请日期 |
2015.03.04 |
申请人 |
ASMO CO., LTD. |
发明人 |
Hakamata Kazuyuki |
分类号 |
F16D3/68;H02K7/116;H02K7/00;F16D3/02 |
主分类号 |
F16D3/68 |
代理机构 |
Patterson Thuente Pedersen, P.A. |
代理人 |
Patterson Thuente Pedersen, P.A. |
主权项 |
1. A joint device comprising:
a drive rotor fixed to a drive shaft; a driven rotor fixed to a driven shaft; and a ring-shaped buffer located between the drive rotor and the driven rotor, wherein; the drive rotor includes a drive engagement portion that projects toward the driven rotor in an axial direction; the driven rotor includes a driven engagement portion that projects toward the drive rotor in the axial direction; the buffer includes an outer surface, which includes a first engagement recess and a second engagement recess that are recessed toward a radially inner side; the drive engagement portion is inserted into the first engagement recess engageable in a rotation direction; the driven engagement portion is inserted into the second engagement recess engageable in the rotation direction; and an outer diameter of a bottom surface of the second engagement recess is smaller than an inner diameter of the driven engagement portion; and the drive rotor and the driven rotor respectively include a drive contact portion and a driven contact portion, and the drive contact portion and the driven contact portion directly contact each other in the rotation direction when a load acting on the driven rotor is greater than or equal to a predetermined level. |
地址 |
Shizuoka-ken JP |