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Title:
SURFACE FASTENER AND METHOD FOR MANUFACTURING SAME, AND SURFACE FASTENER MOLDING DIE
Document Type and Number:
WIPO Patent Application WO/2019/146054
Kind Code:
A1
Abstract:
A surface fastener molded body 40 is molded using a molding die 30 having a cavity 32 for molding a baseplate portion 42 and columnar portions 44, by injecting molten resin into the cavity 32, and causing the molten resin that flows into columnar portion cavities 32b forming the columnar portions 44 to flow simultaneously into each fixed zone of the columnar portion cavities 32b. The molding die 30 is provided with separating wall portions 35, 37 surrounding the fixed zones of the columnar portion cavities 32b, and protruding into the cavity 32. The separating wall portions 35, 37 narrow a gap between opposing inner surfaces of the cavity 32, and are set in such a way that after the columnar portion cavities 32b inside the separating wall portions 35, 37 have been filled with the molten resin, and the molten resin flows outside the separating wall portions 35, 37. The molded surface fastener 40 is provided with a plurality of the columnar portions 44 protruding from the baseplate portion 42, and includes engaging head portions at tip ends of the columnar portions 44, and groove portions 45, 47 are provided following the columnar portions 44, in the surface of the baseplate portion 42 on the side thereof from which the columnar portions 44 protrude, or in the surface on the opposite side.

Inventors:
OKUYAMA HIKARU (JP)
KIDO SHONO (JP)
ZHANG WANLI (JP)
SARUWATARI AKIRA (JP)
Application Number:
PCT/JP2018/002349
Publication Date:
August 01, 2019
Filing Date:
January 25, 2018
Export Citation:
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Assignee:
YKK CORP (JP)
International Classes:
A44B18/00
Foreign References:
JP2000184905A2000-07-04
JP2008532699A2008-08-21
JP2016087230A2016-05-23
Attorney, Agent or Firm:
HIROSAWA Isao (JP)
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