US 11,796,010 B2
Torque limiter device
Yusuke Tomita, Neyagawa (JP); and Yusuke Okamachi, Neyagawa (JP)
Assigned to EXEDY Corporation, Neyagawa (JP)
Filed by EXEDY Corporation, Neyagawa (JP)
Filed on Jan. 21, 2020, as Appl. No. 16/748,714.
Claims priority of application No. 2019-049048 (JP), filed on Mar. 15, 2019.
Prior Publication US 2020/0292008 A1, Sep. 17, 2020
Int. Cl. F16D 7/02 (2006.01); F16F 15/121 (2006.01); F16F 15/129 (2006.01)
CPC F16D 7/025 (2013.01) [F16F 15/1219 (2013.01); F16F 15/1297 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A torque limiter device for limiting a torque transmitted between a power source-side member and an output-side member, the torque limiter device comprising:
a cover including a coupling portion, a tubular portion and an annular support portion, the coupling portion coupled to the power source-side member, the tubular portion axially extending from the coupling portion, the support portion extending from the tubular portion to a radially innermost edge of the support portion;
a friction disc accommodated in an inner peripheral space of the tubular portion of the cover, the friction disc configured to be pressed toward the power source-side member;
an urging member supported by the support portion of the cover, the urging member configured to urge the friction disc toward the power source-side member; and
a pressure plate having an annular shape, the pressure plate disposed axially between the friction disc and the urging member;
wherein the support portion is elastically deformable and includes a protruding portion axially protruding from the support portion toward the power source-side member to contact the urging member, the urging member arranged relative to the support portion such that the radially innermost edge of the support portion is disposed radially outward of a radially inner edge of the urging member; and
wherein the urging member is a cone spring, the cone spring disposed between the pressure plate and the support portion of the cover while compressed therebetween.