Title:
回転力伝達装置
Document Type and Number:
Japanese Patent JP6771816
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rotational force transmission device capable of efficiently transmitting rotational force while properly preventing application of an excessive load exceeding a set torque even for torque transmission in a transmission portion and a transmitted portion, which have relatively small radii.SOLUTION: A cylindrical base portion N2 of a driven rotation part N is fitted externally on the base end side of a shaft portion D3 of a driving rotation part D in a rotatable and coaxial manner, and a compression coil spring S is fitted externally on the shaft portion D3 between the cylindrical base portion N2 of the driven rotation part N and an enlarged diameter tip portion D4. Wave-shaped portions Dw, Nw are provided on a transmission portion D1 of the driving rotation part D and a transmitted portion N1 of the driven rotation part N to face each other in the axial direction. By the urging of the compression coil spring S, required rotational force is transmitted through the engagement of the wave-shaped portions Dw, Nw when a torque is less than a set torque. The engagement between the wave-shaped portions Dw, Nw is released by a load equal to or larger than the set torque, and the transmission of required rotational force is interrupted.SELECTED DRAWING: Figure 1
Inventors:
Yohei Ogata
Application Number:
JP2016137112A
Publication Date:
October 21, 2020
Filing Date:
July 11, 2016
Export Citation:
Assignee:
Yamazaki Sangyo Co., Ltd.
International Classes:
F16D7/04
Domestic Patent References:
| JP2002195313A | ||||
| JP11243726A | ||||
| JP2006308026A | ||||
| JP2005138733A |
Attorney, Agent or Firm:
Takashi Takara