Title:
POWER TRANSMISSION DEVICE
Document Type and Number:
Japanese Patent JP2019027483
Kind Code:
A
Abstract:
To impart rotation resistance by a clutch spring against relative rotation of a pressure member relative to a clutch member, and suppress an impact or knocking sound when a cam surface in a pressure-contact-assisting cam or back-torque-limiting cam comes into contact, without using a specialized separate member.SOLUTION: A power transmission device comprises a clutch spring 8 of which one end 8a may slide on a surface 10a of a restricting member 10 while a side surface is held across a longitudinal direction to generate rotation resistance when a pressure member rotates relative to a clutch member due to a clearance of a cam surface in a pressure-contact-assisting cam or back-torque-limiting cam.SELECTED DRAWING: Figure 1
Inventors:
KATAOKA MAKOTO
ANDO TAKESHI
OZAWA YOSHIHIKO
CHEN HAN HIONG
ANDO TAKESHI
OZAWA YOSHIHIKO
CHEN HAN HIONG
Application Number:
JP2017145838A
Publication Date:
February 21, 2019
Filing Date:
July 27, 2017
Export Citation:
Assignee:
FCC KK
International Classes:
F16D13/52; F16D43/21
Domestic Patent References:
| JPH0979285A | 1997-03-25 | |||
| JP2002145085A | 2002-05-22 | |||
| JP2010053988A | 2010-03-11 |
Foreign References:
| WO2013073515A1 | 2013-05-23 | |||
| WO2016024557A1 | 2016-02-18 |
Attorney, Agent or Firm:
Takao Koshikawa