Molded surface fastener

Patent metadata

Field	Value
Publication number	US-9781979-B2
Application number	US-201615146400-A
Country	US
Kind code	B2
Filing date	May 4, 2016
Priority date	Oct 26, 2011
Publication date	Oct 10, 2017
Grant date	Oct 10, 2017

Abstract

A surface fastener member includes left and right longitudinal protective wall sections and front and rear lateral protective wall sections. Each of the lateral protective wall sections includes an outer first lateral wall section and an inner second lateral wall section. The first lateral wall section is continuously placed between the left and right longitudinal protective wall sections at a predetermined height. The second lateral wall section includes a plurality of divided lateral wall bodies which are intermittently placed along a width direction, and a plurality of second engagement elements. The distance is set smaller than a mounting pitch of the first engagement elements in the longitudinal direction of the surface fastener member. According to this, when the molded surface fastener is integrally molded on a cushion body, it is possible to prevent resin material from entering an engagement element region of the surface fastener member.

First claim

The invention claimed is:

1. A molded surface fastener comprising
surface fastener members in which a plurality of engagement elements stand on first surfaces of flat plate-shaped base materials, and
flexible connecting portions which connect the plurality of surface fastener members to each other in a longitudinal direction, in which
each of the surface fastener members comprises a pair of left and right longitudinal protective wall sections placed along the left and right side edge portions of the flat plate-shaped base materials, and a pair of front and rear lateral protective wall sections placed on front and rear end edge portions of the flat plate-shaped base materials, and
the molded surface fastener is integrally molded on a surface of a cushion body when the cushion body is foamed and molded, wherein
each of the lateral protective wall sections includes an outer first lateral wall section and an inner second lateral wall section,
the engagement elements include first engagement elements placed in a region surrounded by the longitudinal protective wall sections and the second lateral wall section, and
a distance between the first lateral wall section and the second lateral wall section is set smaller than a mounting pitch of the first engagement elements in the longitudinal direction of the surface fastener member.

2. The molded surface fastener according to claim 1 , wherein the engagement elements include second engagement elements directly placed in the second lateral wall section,
the second lateral wall section comprises divided lateral wall bodies which are intermittently placed along the width direction between the left and right longitudinal protective wall sections and the second engagement elements are placed between the divided lateral wall bodies, and
upper ends of the divided lateral wall bodies and the second engagement elements are separated from each other.

3. The molded surface fastener according to claim 2 , wherein each of the second engagement elements includes a standing portion which stands from the first surface of the flat plate-shaped base material, and a cantilever engaging head which curves in a hook shape from an upper end portion of the standing portion toward a forming region of the first engagement element.

4. The molded surface fastener according to claim 2 , wherein the divided lateral wall bodies and the second engagement elements are connected to each other at their lower end portions on a side closer to the flat plate-shaped base materials, and are separated from each other at their upper end portions.

5. The molded surface fastener according to claim 3 , wherein the first lateral wall section comprises a continuous lateral wall body which is connected to the left and right longitudinal protective wall sections and which continuously stands at a predetermined height from the flat plate-shaped base materials between the left and right longitudinal protective wall sections.

6. The molded surface fastener according to claim 5 , wherein the first lateral wall section comprises only the continuous lateral wall body.

7. The molded surface fastener according to claim 1 , wherein the surface fastener member includes at least one slit formed in the flat plate-shaped base material along the width direction of the surface fastener member, and
the slit is placed between the first engagement elements which are placed at a predetermined mounting pitch in the longitudinal direction of the surface fastener member.

8. The molded surface fastener according to claim 1 , wherein the surface fastener member includes a member having magnetic property.

Assignees

• Ykk Corp

Inventors

• Minato Tsuyoshi
• Ren Zhiyu
• Terada Mineto
• Imai Shinichi
• Okuda Kenji
• Nakaya Atsushi
• Sugahara Yasuhiro

Classifications

• A44B18/0049 Primary

  obtained by moulding processes (compression moulding or articles of indefinite length characterised by the shape of the surface B29C43/222; screen moulding B29C67/08) · CPC title

• A44B18/0061

  Male or hook elements (A44B18/0053 takes precedence) · CPC title

• A44B18/0076

  Adaptations for being fixed to a moulded article during moulding · CPC title

• Y10T24/2767

  having several, repeating, interlocking formations along length of filaments · CPC title

• A44B18/0073

  Attaching means · CPC title