Title:
ピストンリング
Document Type and Number:
Japanese Patent JP6404976
Kind Code:
B2
Abstract:
A piston ring (1) which is resinous includes an annular main body portion (2) having an inner peripheral surface (2c) and an outer peripheral surface (2d) facing each other and a pair of side surfaces (2a, 2b) interconnecting the inner peripheral surface (2c) and the outer peripheral surface (2d) and a joint portion 3 formed in the main body portion (2). The joint portion (3) has a step shape when viewed from at least one of the pair of side surfaces (2a, 2b) and the outer peripheral surface (2d). The outer peripheral surface (2d) has a tapered surface having an outer diameter increasing from a side of one side surface (2a) of the pair of side surfaces of the main body portion (2) toward a side of the other side surface (2b).
Inventors:
Shimizu Taishi
Takayuki Yoguchi
Takayuki Kondo
Masaaki Fujita
Takayuki Yoguchi
Takayuki Kondo
Masaaki Fujita
Application Number:
JP2017057751A
Publication Date:
October 17, 2018
Filing Date:
March 23, 2017
Export Citation:
Assignee:
Riken Co., Ltd.
International Classes:
F16J9/02; F02F5/00; F16J9/16
Domestic Patent References:
| JP5658585B2 | ||||
| JP4165119B2 | ||||
| JP2010236649A | ||||
| JP2002323133A | ||||
| JP2015503072A | ||||
| JP3848394B2 | ||||
| JP2012163118A |
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Yohei Suzuki
Yoshiki Kuroki
Yohei Suzuki