公开(公告)号：US12023837B2

公开(公告)日：2024-07-02

申请号：US17465044

申请日：2021-09-02

Applicant: YKK Corporation

Inventor： Yoshiyuki Fukuhara ,  Yuji Takada

IPC: B29C48/00 ,  A44B18/00 ,  A61F13/62 ,  B29C39/14 ,  B29C43/22 ,  B29C43/46 ,  B29C69/02 ,  B29C43/52 ,  B29L31/00

CPC classification number: B29C48/0011 ,  A44B18/0007 ,  A44B18/0015 ,  A44B18/0019 ,  A44B18/0049 ,  A44B18/0061 ,  A44B18/0065 ,  A44B18/0073 ,  A61F13/625 ,  B29C39/148 ,  B29C43/222 ,  B29C43/46 ,  B29C69/02 ,  B29C2043/461 ,  B29C43/52 ,  B29L2031/727

Abstract: This manufacturing method of a molded surface fastener involves a primary molding step for forming a primary molded body and a secondary molding step for compressing a provisional element of the primary molded body while heating the same. A molding apparatus is provided with a mold member comprising multiple penetration holes and multiple concave portions, whereof each penetration hole communicates to at least one concave portion; in the primary molding step, the molding apparatus is used to form a primary molded body comprising a provisional element having a primary stem portion and a pawl portion is formed from the protruded portion by compressing the provisional element. By this means, it is possible to stably manufacture a molded surface fastener that has an engaging element comprising a pawl portion that projects from the outer peripheral edge of an engaging head portion.

公开(公告)号：US11219285B2

公开(公告)日：2022-01-11

申请号：US16062038

申请日：2016-08-02

Applicant: YKK Corporation

Inventor： Yoshiyuki Fukuhara ,  Yuji Takada

IPC: A44B18/00 ,  A61F13/62 ,  B29C69/02

Abstract: This manufacturing method of a molded surface fastener involves a primary molding step for forming a primary molded body and a secondary molding step for compressing a provisional element of the primary molded body while heating the same. A molding apparatus is provided with a mold member comprising multiple penetration holes and multiple concave portions, whereof each penetration hole communicates to at least one concave portion; in the primary molding step, the molding apparatus is used to form a primary molded body comprising a provisional element having a primary stem portion and a pawl portion is formed from the protruded portion by compressing the provisional element. By this means, it is possible to stably manufacture a molded surface fastener that has an engaging element comprising a pawl portion that projects from the outer peripheral edge of an engaging head portion.

公开(公告)号：US20180360170A1

公开(公告)日：2018-12-20

申请号：US16062038

申请日：2016-08-02

Applicant: YKK Corporation

Inventor： Yoshiyuki Fukuhara ,  Yuji Takada

IPC: A44B18/00 ,  B29C43/22 ,  B29C43/46

Abstract: This manufacturing method of a molded surface fastener involves a primary molding step for forming a primary molded body and a secondary molding step for compressing a provisional element of the primary molded body while heating the same. A molding apparatus is provided with a mold member comprising multiple penetration holes and multiple concave portions, whereof each penetration hole communicates to at least one concave portion; in the primary molding step, the molding apparatus is used to form a primary molded body comprising a provisional element having a primary stem portion and a pawl portion is formed from the protruded portion by compressing the provisional element. By this means, it is possible to stably manufacture a molded surface fastener that has an engaging element comprising a pawl portion that projects from the outer peripheral edge of an engaging head portion.

公开(公告)号：US20210393001A1

公开(公告)日：2021-12-23

申请号：US17465044

申请日：2021-09-02

Applicant: YKK Corporation

Inventor： Yoshiyuki Fukuhara ,  Yuji Takada

IPC: A44B18/00 ,  A61F13/62 ,  B29C69/02 ,  B29C43/22

Abstract: This manufacturing method of a molded surface fastener involves a primary molding step for forming a primary molded body and a secondary molding step for compressing a provisional element of the primary molded body while heating the same. A molding apparatus is provided with a mold member comprising multiple penetration holes and multiple concave portions, whereof each penetration hole communicates to at least one concave portion; in the primary molding step, the molding apparatus is used to form a primary molded body comprising a provisional element having a primary stem portion and a pawl portion is formed from the protruded portion by compressing the provisional element. By this means, it is possible to stably manufacture a molded surface fastener that has an engaging element comprising a pawl portion that projects from the outer peripheral edge of an engaging head portion.