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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING FASTENER ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/092888
Kind Code:
A1
Abstract:
A method for manufacturing a fastener element (10) having small left and right fin parts by punching a long flat metal member (5). The manufacturing method includes carrying out punching at least two times and carrying out one punching along left and right outside surfaces of a tooth meshing top part that is to be formed and left and right outside surfaces of a tape clamping part. Accordingly, damage relating to the punching of the punched element occurs less readily, in addition to which formation of burrs and stepping in the boundary between the tooth mashing top part and tape clamping part can be prevented, and furthermore, a fastener element (10) having smaller fin parts can be manufactured.

Inventors:
TAMATE YOSHIYUKI (IT)
Application Number:
PCT/JP2017/040807
Publication Date:
May 16, 2019
Filing Date:
November 13, 2017
Export Citation:
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Assignee:
YKK CORP (JP)
International Classes:
B21D53/52; B21D28/00
Domestic Patent References:
WO2013051149A12013-04-11
Foreign References:
US1947956A1934-02-20
JPS3911691B11964-06-25
JP2017005945A2017-01-05
JP4215660B22009-01-28
JP4215660B22009-01-28
Other References:
See also references of EP 3711876A4
Attorney, Agent or Firm:
HAYASHI, Tsukasa et al. (JP)
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