Mold-in touch fastening product

Patent metadata

Field	Value
Publication number	US-2016366991-A1
Application number	US-201514972204-A
Country	US
Kind code	A1
Filing date	Dec 17, 2015
Priority date	Jun 17, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

A male touch fastener strip includes an elongated base and a field of male fastener elements each having a stem extending from a broad face of the base and a head for engaging fibers. The fastener element stems and broad face of the base together form a unitary mass of resin, such as a resin containing a magnetically attractable substance. Wings extend from respective longitudinal edges of the base and define discrete corrugations extending in a series along the fastener strip and forming corresponding undulations in the rear face of the strip along its longitudinal edges. The corrugated wings can also support a foam gasket.

First claim

1 . A male touch fastener strip having a front fastening face and a rear face, the strip comprising:
an elongated base; a field of exposed male fastener elements each having a stem extending from the base on the front fastening face of the strip; and a pair of wings, each wing extending from a respective longitudinal edge of the base outboard of the field of fastener elements; wherein each wing defines discrete corrugations extending in a series along the fastener strip and forming corresponding undulations in the rear face of the strip along longitudinal edge regions of the fastener strip.

2 - 6 . (canceled)

7 . The touch fastener strip of claim 1 , wherein the corrugations feature a saw tooth profile at outboard edges of the wings.

8 - 11 . (canceled)

12 . The touch fastener strip of claim 1 , wherein each wing carries a respective strip of foam adhered to the wing on a same side of the fastener strip as the fastener elements.

13 . The touch fastener strip of claim 12 , wherein the strips of foam overlay the corrugations.

14 . The touch fastener strip of claim 12 , wherein the fastener strip has longitudinal end regions in which the front fastening face of the strip is covered by foam forming, in cooperation with the foam strips, an end barrier of the fastener strip.

15 - 20 . (canceled)

21 . The touch fastener strip of claim 1 , wherein at least a portion of each undulation extends at least partially rearward of the side of the base opposite the fastener elements.

22 . The touch fastener strip of claim 1 , wherein the series of the corrugations comprises a frequency of between 4 and 20 corrugation cycles per inch along the fastener strip.

23 . The touch fastener strip of claim 1 , wherein the wings are each angled, in an unloaded state, toward the rear face of the strip.

24 . The touch fastener strip of claim 23 , wherein the wings each form a midpoint angle of between about 5 and 80 degrees with respect to the lateral plane.

25 . The touch fastener strip of claim 1 , wherein the corrugations define a corrugation amplitude, at outer edges of the wings, of at least twice a nominal edge thickness of the wings.

26 . The touch fastener strip of claim 1 , wherein the base is of a material comprising a magnetically attractable substance dispersed throughout a synthetic resin.

27 . The touch fastener strip of claim 26 , wherein the magnetically attractable substance comprises between about 30 and 40 percent of the material, by weight.

28 . The touch fastener strip of claim 26 , wherein the wings are formed of the material, the wings and base together forming a contiguous mass of the synthetic resin.

29 . The touch fastener strip of claim 1 , further comprising longitudinal walls rising from the base on either side of the field of male fastener elements and inboard of the wings.

Assignees

• Velcro BVBA

Inventors

• Mascarenhas Karl S
• Cina Michael
• Voigt Paul Joseph

Classifications

• B29C44/1233

  the preformed parts being supported during expanding · CPC title

• A44B18/008 Primary

  Hooks or loops provided with means to reinforce the attachment, e.g. by adhesive means (tab fastener elements for absorbent pads combining adhesive and mechanical fastening A61F13/581) · CPC title

• A44B18/0061 Primary

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

• A44B18/0065

  of a mushroom type · CPC title

• B29C44/1261

  Avoiding impregnation of a preformed part · CPC title