Title:
CHECK VALVE
Document Type and Number:
Japanese Patent JP2016023691
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a check valve equipped with a rotation-preventive mechanism of a spring receiving member which facilitates the removing work of the spring receiving member.SOLUTION: A check valve 1 is equipped with a spring receiving member 30 of a coil spring energizing a valve body in a casing 10. In the casing 10, a plurality ribs 15 are provided, which are protrusively formed from an inner peripheral surface and formed with circumferential grooves in which projecting pieces 33, 34, 35, and 36 of the spring receiving member 30 are inserted in a circumferential direction of the casing 10 to be supported on a tip end surface 17. The check valve 1 is equipped with a rotation preventive mechanism for preventing the spring receiving member 30 from rotating in the circumferential direction of the casing 10. The rotation preventive mechanism has a spring 37 fastened to the projecting piece 36 of the spring receiving member 30 in an axial direction of the casing 10, and preventing the rotations of the spring receiving member 30 when a head portion abuts on the ribs 15.SELECTED DRAWING: Figure 3
Inventors:
KOIKE TADASHI
Application Number:
JP2014147076A
Publication Date:
February 08, 2016
Filing Date:
July 17, 2014
Export Citation:
Assignee:
TLV CO LTD
International Classes:
F16K15/02; F16K15/06
Domestic Patent References:
| JPS54142832U | 1979-10-03 | |||
| JPS54142832U | 1979-10-03 | |||
| JP2001074153A | 2001-03-23 | |||
| JPS62179470U | 1987-11-14 | |||
| JPH0665667U | 1994-09-16 | |||
| JP2001074153A | 2001-03-23 | |||
| JPS62179470U | 1987-11-14 | |||
| JPH0665667U | 1994-09-16 |
Attorney, Agent or Firm:
Kenzo Terazono
Yuji Okuyama
Yuji Okuyama