Segmented separable fastener

• US 6,656,563 B1
• Filed: 05/23/2000
• Issued: 12/02/2003
• Est. Priority Date: 05/23/2000
• Status: Expired due to Term

• Current Assignee: Velcro BVBA
• Original Assignee: Velcro Industries BV (Chartwell Industries Ltd)
• Inventors: Gallant, Christopher M., Leach, Peter E.
• Primary Examiner(s): Pyon, Harold
• Assistant Examiner(s): Miggins, Michael C.
• Application Number:
  US09/576,831
• Time in Patent Office: 1,288 Days
• Field of Search: 244/52, 243/06, 244/42, 244/43, 244/44, 244/47, 244/50, 428/99, 428/100, 428/120, 428/192, 428/35.7
• US Class Current: 428/100
• CPC Class Codes: A44B 18/0049 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 Class Codes: A44B 18/0076 Adaptations for being fixed to a moulded article during moulding
• CPC Class Codes: B29C 2043/465 having one or more cavities, e.g. for forming distinct products
• CPC Class Codes: B29C 43/222 characterised by the shape of the surface
• CPC Class Codes: B29C 48/08 flexible, e.g. films
• CPC Class Codes: B29C 48/12 Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
• CPC Class Codes: B29C 48/35 with rollers
• CPC Class Codes: B29L 2031/729 Hook and loop-type fasteners
• CPC Class Codes: Y10T 24/27 including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
• CPC Class Codes: Y10T 24/2717 with distinct structure for sealing securement joint
• CPC Class Codes: Y10T 24/275 with feature facilitating or causing attachment of filaments to mounting surface
• CPC Class Codes: Y10T 24/2775 having opposed structure formed from distinct filaments of diverse shape to those mating therewith
• CPC Class Codes: Y10T 24/2792 having mounting surface and filaments constructed from common piece of material
• CPC Class Codes: Y10T 428/24017 Hook or barb
• CPC Class Codes: Y10T 428/24182 Inward from edge of web or sheet

Abstract

A segmented hook and loop type fastener accommodates molding contours. Each segment may be surrounded by a gasket barrier, or covered, or unprotected. On the fastening face of a base member are a plurality of fastening elements, either hook-type or loop-type. Between and joining each adjacent pair of fastening segments is a flexible neck that is narrower than the fastening segment. The flexible neck region is typically flexible around two or three orthogonal axes. Each segment may have a barrier for use during an operation to incorporate the fastener into a molded body. The barrier would prevent any liquid foaming material from contacting the fastening elements if the fastener is placed in the mold with the fastening elements pressed against the wall of the mold. The cover may be enveloping or space filling. Several different types of apparatus and methods for fabricating such a fastener are also disclosed.

Claims

1. A separable fastener component for use with a complementary separable fastener component, said separable fastener component comprising a continuous, integral strip, said strip comprising:

a. a plurality of fastening segments, each having a length along a length dimension and a width, along a width dimension that is perpendicular to said length dimension, arranged adjacent each other, along said length dimension, each fastening segment comprising;

i. a base member, having a nominal fastening face and a non-fastening face; and

ii. carried on said fastening face of said base member, a plurality of fastening elements selected from the group consisting of hook-type fastening elements and loop fastening elements, said fastening elements carried by substantially all of said plurality of fastening segments being selected from only one member of said group; and

b. located between and joining each adjacent pair of fastening segments, only one flexible neck, at approximately a midpoint of each segment width, that;

i. is narrower than said fastening segment;

ii. is integral with said base member of any adjacent segments; and

iii. is substantially uniform in composition with said base member of any adjacent segments.

2. The fastener of claim 1, further comprising an enveloping cover, which substantially covers each said segmented fastening region.

3. The fastener of claim 1, said flexible neck region being flexible around three orthogonal axes.

4. The fastener of claim 1, further comprising, for each of said fastening segments, a barrier for use during an operation to incorporate said fastener into a molded body, using a mold having a wall, which barrier would prevent any liquid foaming material from contacting a major portion of any of said fastening elements if said fastener is placed in said mold with said fastening elements pressed against said wall of said mold.

5. The fastener of claim 4, said base comprising magnetically attractable material.

6. The fastener of claim 1, further comprising a removable space filling cover, which substantially fills any spaces among said fastening elements.

7. The fastener of claim 6, said fastening elements being hook-type elements, having free tips, said space filling cover leaving just said tips exposed to any such liquid.

8. The fastener of claim 6, said space filling cover comprising an elastomeric cover.

9. The fastener of claim 6, said space filling cover comprising a thermoplastic cover.

10. The fastener of claim 6, said space filling cover comprising a thermoset cover.

11. The fastener of claim 6, said space filling cover comprising a flexible cover.

12. The fastener of claim 1, further comprising, for each of said segmented fastening regions, a gasket that extends fully around the perimeter of said segmented region.

13. The fastener of claim 12, said gasket comprising a perimeter lip that has been integrally formed with said fastening elements.

14. The fastener of claim 12, said gasket comprising a perimeter lip that has been applied to said base member separately from said fastening elements.

15. The fastener of claim 12, said fastening elements comprising hook-type elements having free tips, said gasket comprising a flexible lip that extends away from said base slightly further than said tips.

16. The fastener of claim 12, said gasket comprising a perimeter space filling gasket that covers fastening elements in a perimeter region of said fastening segment.

17. The fastener of claims 12, said fastening segments comprising an internal region that carries said fastening elements and a perimeter region that carries no fastening elements, said gasket comprising a perimeter space filling gasket that covers said perimeter region that carries no fastening elements.

18. A molded polymeric body, said body comprising:

a. an internal body volume;

b. at least one surface;

c. a separable fastener component, adhered to said surface, said fastener component comprising a continuous integral strip, said strip comprising;

i. a plurality of fastening segments, each having a length along a length dimension and a width, along a width dimension that is perpendicular to said length dimension, arranged adjacent each other, along said length dimension, each fastening segment comprising;

A. a base member, having a nominal fastening face and a non-fastening face; and

B. carried on said fastening face of said base member, a plurality of fastening elements selected from the group consisting of hook-type fastening elements and loop fastening elements, said fastening elements carried by substantially all of said plurality of fastening segments being selected from only one member of said group and extending away from said internal volume; and

ii. located between and joining each adjacent pair of fastening segments, only one flexible neck, at approximately a midpoint of each segment width, that;

A. is narrower than said fastening segment;

B. is integral with said base member of any adjacent segments; and

C. is substantially uniform in composition with said base member of any adjacent segments.

19. The molded polymeric body of claim 18, said separable fastener component further comprising, surrounding said fastening elements of each of said fastening segments, a perimeter gasket, which is unitary with said base member.

20. The molded polymeric body of claim 19, said gasket comprising a lip that extends from said base member at least as far as said fastening elements extend from said base member.

21. The molded polymeric body of claim 19, said fastener component being arranged such that segments of said fastener component are angled relative to each other, within a plane defined by said base members of said fastening segments.