Title:
COIL-SPRING FIXING STRUCTURE AND DUPLEX RECIPROCATING PUMP
Document Type and Number:
WIPO Patent Application WO/2016/006043
Kind Code:
A1
Abstract:
A retainer member (30) comprises a first retainer (31) having an engaging portion (33) that engages with the inside of an end of a coil spring (14), and a second retainer (32) that engages with the inside of the first retainer (31). When the first retainer (31) and the second retainer (32) engage with each other, an outer circumferential portion (34) of the leading edge of the second retainer (32) comes into contact with the inside of the engaging portion (33), causing a plurality of claw parts (37) to expand outward due to a wedge effect. As a result of the outwardly expanded plurality of claw parts (37) pressing the inside of the end of the coil spring (14), the retainer member (30) is fixed to the end of the coil spring (14).
Inventors:
ONIDUKA TOSHIKI (JP)
INAOKA HIROKI (JP)
INAOKA HIROKI (JP)
Application Number:
PCT/JP2014/068222
Publication Date:
January 14, 2016
Filing Date:
July 08, 2014
Export Citation:
Assignee:
IWAKI CO LTD (JP)
International Classes:
F16F1/12
Domestic Patent References:
| WO2010143469A1 | 2010-12-16 |
Foreign References:
| JPS59191439U | 1984-12-19 | |||
| JPS6124550U | 1986-02-13 | |||
| JP2007292271A | 2007-11-08 | |||
| JP2005024002A | 2005-01-27 |
Attorney, Agent or Firm:
KISARAGI ASSOCIATES (JP)
きさらぎ international patent business corporation (JP)
きさらぎ international patent business corporation (JP)
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