CA2045993C - Synthetic resin surface fastener including integrally molded hooks - Google Patents
Synthetic resin surface fastener including integrally molded hooks Download PDFInfo
- Publication number
- CA2045993C CA2045993C CA002045993A CA2045993A CA2045993C CA 2045993 C CA2045993 C CA 2045993C CA 002045993 A CA002045993 A CA 002045993A CA 2045993 A CA2045993 A CA 2045993A CA 2045993 C CA2045993 C CA 2045993C
- Authority
- CA
- Canada
- Prior art keywords
- surface fastener
- hook elements
- hook
- fastener member
- hooks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
- A44B18/0046—Fasteners made integrally of plastics
- A44B18/0061—Male or hook elements
Abstract
A surface fastener member comprises a base and a plurality of hook elements which are integrally formed by extrusion or injection molding. The hook elements of the surface fastener member grip with a companion pile-like surface fastener member carrying an interior finish material so as to fasten the interior finish material to an automobile ceiling, for example.
Description
~~4;~~9~$
SYNTHETIC RESIN SURFACE FASTENER
INCLUDING INTEGRALLY MOLDED HOOKS
BACKGROUND OF THE INVENTION
1. Field of the Invention:
This invention relates 1,o a synthetic resin sur-face fastener including a base and hook elements which are integrally molded, and more particularly to a synthetic resin surface fastener member having hook elements which can assure a very strong intermesh with a companion surface fastener member.
SYNTHETIC RESIN SURFACE FASTENER
INCLUDING INTEGRALLY MOLDED HOOKS
BACKGROUND OF THE INVENTION
1. Field of the Invention:
This invention relates 1,o a synthetic resin sur-face fastener including a base and hook elements which are integrally molded, and more particularly to a synthetic resin surface fastener member having hook elements which can assure a very strong intermesh with a companion surface fastener member.
2. Description of the Related Art:
There have been known a number of surface fasteners in each of which a base and hook elements protruding from the base are integrally molded. A
plurality of methods have been proposed to produce such surface fasteners.
Japanese Patent Publication No. 53712/1982 dis-closes one of such methods, for example. In this method, a flat base and straight projections are molded integrally first. Then tips of the straight projections are pressed to and moved along semi-circular grooves formed on a die so as to be in the shape of hook. In this case, when the grooves have random directions, the hooks will also have random directions, thereby assuring a very strong grip with a ~:,(~~.:~L;:~3~
companion surface fastener member.
However since it is very difficult to mate with the tips of the straight projections with the grooves, and since the hooks are not produced in one step, not only manufacturing processes are complicated but also respective hooks are di.fficuli~ to face desired direc-Lions. In addition, it is very difficult to shape the hooks as predetermined. Therefore the hooks will not be shaped uniformly, and cannot assure a strong grip with the companion fastener member. For these rea-sons, this method has not yet been in practical use.
With a method exemplified in Japanese Patent Publication No. 22768/1973, both of a base and hook elements are formed integrally by extrusion molding at a time, and the hook elements are shaped in succes-sion. In this method, a plurality of die discs and spacer discs are piled one over another so as to ob-tain a mold drum. Then melted thermoplastic resin is extruded onto the surface of the mold drum, being pushed into mold cavities on the die discs. The resin on the surface of the mold drum is pressed to form a base, being cooled. Then the spacer discs are retracted inwardly so as to scrape a strip of molded fastener member from the surface of the mold drum.
Each of the die discs has a number of hook-shaped cavities which are spaced as predetermined and extend toward the center from the circumferential edge of the disc. The spacer discs have smooth surfaces. The spacer discs are necessary because one die cannot have cavities shaped in complete conformity with the con-tour of the hooks. In addition, since the cavities on each die discs face the circumferential direction of the die disc, the hooks have the direction same as that of the cavities. Therefore, all of the hooks have the same direction. It is difficult to change the direction of the hooks.
The existing surface fasteners have hooks which usually face one direction, which means a fastening force of the surface fasteners is directional, thereby adversely affecting strong fastening and easy un-fastening of the surface fasteners.
SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide a surface fastener member which is integrally molded and which can assure a very strong grip in any direction by taking advantage of directionality of the molded hooks.
According to this invention, there is provided a synthetic resin surface fastener member comprising a flat base and a plurality of hook elements bristling from one surface of the flat base, both being molded integrally, wherein the hook elements are arranged in ~~~~~9~
two or more sections, and the hook elements in one section and those in sections adjacent thereto face directions perpendicular to one another.
This invention is contemplated by taking ad-vantage of the directionality o.f the hook elements determined when the hook elements are molded. There-fore, a number of hook elementa having the same direc-tion compose one group while hook elements having a direction perpendicular to that of the foregoing hook elements compose another group. Groups of the hook elements facing in the opposite directions are alternately molded side by side on the same base.
When each row of hook elements facing the same direction and each row of hooks facing the opposite direction are alternately arranged side by side, when each row has hook elements facing opposite directions, or when adjacent groups of hook elements are per-pendicular to each other in the direction of the hook elements, the surface fastener member including the foregoing hook elements can assure a very strong and uniform intermesh with its companion surface fastener member throughout the whole surface area.
BRIEF DESCRIPTTON OF THE DRAWINGS
FIG. 1 is a bottom plan view showing one typical example of an integrally molded surface fastener ac-cording to an embodiment of this invention:
There have been known a number of surface fasteners in each of which a base and hook elements protruding from the base are integrally molded. A
plurality of methods have been proposed to produce such surface fasteners.
Japanese Patent Publication No. 53712/1982 dis-closes one of such methods, for example. In this method, a flat base and straight projections are molded integrally first. Then tips of the straight projections are pressed to and moved along semi-circular grooves formed on a die so as to be in the shape of hook. In this case, when the grooves have random directions, the hooks will also have random directions, thereby assuring a very strong grip with a ~:,(~~.:~L;:~3~
companion surface fastener member.
However since it is very difficult to mate with the tips of the straight projections with the grooves, and since the hooks are not produced in one step, not only manufacturing processes are complicated but also respective hooks are di.fficuli~ to face desired direc-Lions. In addition, it is very difficult to shape the hooks as predetermined. Therefore the hooks will not be shaped uniformly, and cannot assure a strong grip with the companion fastener member. For these rea-sons, this method has not yet been in practical use.
With a method exemplified in Japanese Patent Publication No. 22768/1973, both of a base and hook elements are formed integrally by extrusion molding at a time, and the hook elements are shaped in succes-sion. In this method, a plurality of die discs and spacer discs are piled one over another so as to ob-tain a mold drum. Then melted thermoplastic resin is extruded onto the surface of the mold drum, being pushed into mold cavities on the die discs. The resin on the surface of the mold drum is pressed to form a base, being cooled. Then the spacer discs are retracted inwardly so as to scrape a strip of molded fastener member from the surface of the mold drum.
Each of the die discs has a number of hook-shaped cavities which are spaced as predetermined and extend toward the center from the circumferential edge of the disc. The spacer discs have smooth surfaces. The spacer discs are necessary because one die cannot have cavities shaped in complete conformity with the con-tour of the hooks. In addition, since the cavities on each die discs face the circumferential direction of the die disc, the hooks have the direction same as that of the cavities. Therefore, all of the hooks have the same direction. It is difficult to change the direction of the hooks.
The existing surface fasteners have hooks which usually face one direction, which means a fastening force of the surface fasteners is directional, thereby adversely affecting strong fastening and easy un-fastening of the surface fasteners.
SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide a surface fastener member which is integrally molded and which can assure a very strong grip in any direction by taking advantage of directionality of the molded hooks.
According to this invention, there is provided a synthetic resin surface fastener member comprising a flat base and a plurality of hook elements bristling from one surface of the flat base, both being molded integrally, wherein the hook elements are arranged in ~~~~~9~
two or more sections, and the hook elements in one section and those in sections adjacent thereto face directions perpendicular to one another.
This invention is contemplated by taking ad-vantage of the directionality o.f the hook elements determined when the hook elements are molded. There-fore, a number of hook elementa having the same direc-tion compose one group while hook elements having a direction perpendicular to that of the foregoing hook elements compose another group. Groups of the hook elements facing in the opposite directions are alternately molded side by side on the same base.
When each row of hook elements facing the same direction and each row of hooks facing the opposite direction are alternately arranged side by side, when each row has hook elements facing opposite directions, or when adjacent groups of hook elements are per-pendicular to each other in the direction of the hook elements, the surface fastener member including the foregoing hook elements can assure a very strong and uniform intermesh with its companion surface fastener member throughout the whole surface area.
BRIEF DESCRIPTTON OF THE DRAWINGS
FIG. 1 is a bottom plan view showing one typical example of an integrally molded surface fastener ac-cording to an embodiment of this invention:
FIG. 2 is a front elevation of the surface fastener of FIG. 1;
FIG. 3 is a side elevation of hook elements, in enlarged scale, of the surface fastener; and FIGS. 4 and 5 are bottom plan views showing ar-rangements of hook elements of circular surface fastener members.
DETAINED DEBCItI~~TION
A typical example of a surface fastener accord-ing to this invention will now be described with reference to the accompanying drawings.
In the drawings, reference numeral 11 stands for a base which has hook elements 15 extending from a surface thereof and a clamp 13 protruding from the other surface thereof. The clamp 13 is adapted to be attached to a non-illustrated mounting base on which an interior finish material is to be installed in an automobile, for example. The base 11, hooks 15 and clamp 13 are integrally produced by extrusion or in-jection molding so as to serve a surface fastener mem-ber 1. The surface fastener member 1 is installed on a ceiling reinforcement 2, for example on an automobile ceiling, as follows. The clamp 13 of the surface fastener member 1 is inserted through an open-ing 131 of the ceiling reinforcement 2 so that the ceiling reinforcement 2 is sandwiched by the clamp 13 _ 5 _ and the base 11 of the surface fastener member 1.
Then a pile-like surface on the rear surface of an in-terior finish material is made to intermesh with hook heads 12 of the surface fastener member l, so that the interior finish material is installed on the ceiling reinforcement 2.
As-described above, the hook elements 15 are ar-ranged in two or more section;. The hook elements 15 in the respective sections are arranged so that their directions are perpendicular one another. In the em-bodiment shown in FIGS. 1 and 2, the hook elements 15 are arranged in four sections by quartering the square base 11. However, the number of the sections is not limited to four. Tn addition, the number of the sec-tions depends upon the shape of the base 11. When the base is circular, the hook elements 15 will be ar-ranged in sections as shown in FIGS. 4 and 5.
Arrangement and typical shapes of the hook ele-ments will be described with reference to FIGS. 1 to 3. As shown in FIG. 3, each hook element 15 looks like the crest of a wave in cross sectional outline.
The lateral crass sectional area of the hook element 15 is decreased gradually from a bottom toward a tip 17. Specifically a portion 18 at which the hook element 15 extends straight from the base 11 is slightly and gently sloped toward the tip 17. The ~~~~9~
front of the hook element 15 is substantially upright.
Reinforcing ribs 19 extend from opposite sides of the hook element 15. The shape of the hooks shown in these drawing figures is given as an example, and is not limited to the example.
A plurality of the hook elements 15 having tips facing.the same direction and/or those facing the op-posite direction according to the structure of mold dies are arranged in rows on the base 11. In this em-bodiment, rows 121 of the hook elements facing the same direction and rows 122 of the hook elements facing the opposite direction are alternately arranged so as to form a section A. In sections B and C ad-jacent to the section A, the rows 121 and 122 are ar-ranged so as to be perpendicular to those of the sec-tion A. In the section D adjacent to the sections B
and D, the arrangement of the rows 121 and 122 are the same as that in the section A. The surface fastener member 1 of this embodiment has four hook groups in the sections A, B, C and D. The rows of the hook ele-ments, i.e. the directions of the hook elements 15, in adjacent two sections, are perpendicular to one anoth-er. Each section is equal in the area, i.e. the sec-tions A and D are equal in size while the sections B
and C are equal in size.
With the foregoing arrangement, the hook heads ~~~ ~.~.~9~3 1~ of the hook elements 15 of the surface fastener member 1 face at least four directions. Therefore the surface fastener member 1 can grip completely with a flexible pile-like surface of the companion surface fastener member, providing a strong fastening force throughout the intermeshing areas.
The surface fastener member having the integral-ly molded hook elements can ds:monstrate a uniform fastening force throughout it:: whole surface area.
g -
FIG. 3 is a side elevation of hook elements, in enlarged scale, of the surface fastener; and FIGS. 4 and 5 are bottom plan views showing ar-rangements of hook elements of circular surface fastener members.
DETAINED DEBCItI~~TION
A typical example of a surface fastener accord-ing to this invention will now be described with reference to the accompanying drawings.
In the drawings, reference numeral 11 stands for a base which has hook elements 15 extending from a surface thereof and a clamp 13 protruding from the other surface thereof. The clamp 13 is adapted to be attached to a non-illustrated mounting base on which an interior finish material is to be installed in an automobile, for example. The base 11, hooks 15 and clamp 13 are integrally produced by extrusion or in-jection molding so as to serve a surface fastener mem-ber 1. The surface fastener member 1 is installed on a ceiling reinforcement 2, for example on an automobile ceiling, as follows. The clamp 13 of the surface fastener member 1 is inserted through an open-ing 131 of the ceiling reinforcement 2 so that the ceiling reinforcement 2 is sandwiched by the clamp 13 _ 5 _ and the base 11 of the surface fastener member 1.
Then a pile-like surface on the rear surface of an in-terior finish material is made to intermesh with hook heads 12 of the surface fastener member l, so that the interior finish material is installed on the ceiling reinforcement 2.
As-described above, the hook elements 15 are ar-ranged in two or more section;. The hook elements 15 in the respective sections are arranged so that their directions are perpendicular one another. In the em-bodiment shown in FIGS. 1 and 2, the hook elements 15 are arranged in four sections by quartering the square base 11. However, the number of the sections is not limited to four. Tn addition, the number of the sec-tions depends upon the shape of the base 11. When the base is circular, the hook elements 15 will be ar-ranged in sections as shown in FIGS. 4 and 5.
Arrangement and typical shapes of the hook ele-ments will be described with reference to FIGS. 1 to 3. As shown in FIG. 3, each hook element 15 looks like the crest of a wave in cross sectional outline.
The lateral crass sectional area of the hook element 15 is decreased gradually from a bottom toward a tip 17. Specifically a portion 18 at which the hook element 15 extends straight from the base 11 is slightly and gently sloped toward the tip 17. The ~~~~9~
front of the hook element 15 is substantially upright.
Reinforcing ribs 19 extend from opposite sides of the hook element 15. The shape of the hooks shown in these drawing figures is given as an example, and is not limited to the example.
A plurality of the hook elements 15 having tips facing.the same direction and/or those facing the op-posite direction according to the structure of mold dies are arranged in rows on the base 11. In this em-bodiment, rows 121 of the hook elements facing the same direction and rows 122 of the hook elements facing the opposite direction are alternately arranged so as to form a section A. In sections B and C ad-jacent to the section A, the rows 121 and 122 are ar-ranged so as to be perpendicular to those of the sec-tion A. In the section D adjacent to the sections B
and D, the arrangement of the rows 121 and 122 are the same as that in the section A. The surface fastener member 1 of this embodiment has four hook groups in the sections A, B, C and D. The rows of the hook ele-ments, i.e. the directions of the hook elements 15, in adjacent two sections, are perpendicular to one anoth-er. Each section is equal in the area, i.e. the sec-tions A and D are equal in size while the sections B
and C are equal in size.
With the foregoing arrangement, the hook heads ~~~ ~.~.~9~3 1~ of the hook elements 15 of the surface fastener member 1 face at least four directions. Therefore the surface fastener member 1 can grip completely with a flexible pile-like surface of the companion surface fastener member, providing a strong fastening force throughout the intermeshing areas.
The surface fastener member having the integral-ly molded hook elements can ds:monstrate a uniform fastening force throughout it:: whole surface area.
g -
Claims
1. A synthetic resin surface fastener member comprising a flat base and a plurality of hook ele-ments bristling from one surface of said flat base, both being molded integrally, wherein said hook ele-ments are arranged in two or more sections, and said hook elements in one section and those in sections ad-jacent thereto face directions perpendicular to one another.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990070990U JP2545058Y2 (en) | 1990-07-03 | 1990-07-03 | Engagement member for synthetic resin hook-and-loop fastener with hook piece integrally molded |
| JP2-70990 | 1990-07-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2045993A1 CA2045993A1 (en) | 1992-01-04 |
| CA2045993C true CA2045993C (en) | 2003-07-08 |
Family
ID=13447490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002045993A Expired - Fee Related CA2045993C (en) | 1990-07-03 | 1991-06-28 | Synthetic resin surface fastener including integrally molded hooks |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0464754B1 (en) |
| JP (1) | JP2545058Y2 (en) |
| KR (1) | KR940001871Y1 (en) |
| CA (1) | CA2045993C (en) |
| DE (1) | DE69104915T2 (en) |
| ES (1) | ES2064009T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9924765B1 (en) * | 2016-09-23 | 2018-03-27 | Ykk Corporation Of America | Rail fastener |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2549667Y2 (en) * | 1991-02-14 | 1997-09-30 | ワイケイケイ株式会社 | Hanging tool |
| EP0577697B1 (en) * | 1991-03-06 | 1999-11-03 | Aircast, Inc. | Injection-molded orthopedic device and method |
| JPH0584213U (en) * | 1992-04-24 | 1993-11-16 | 吉田工業株式会社 | One-piece molded surface fastener |
| JP2559017Y2 (en) * | 1992-06-17 | 1998-01-14 | ワイケイケイ株式会社 | Integral molded surface fastener |
| DE4229062A1 (en) * | 1992-09-01 | 1994-03-03 | Binder Gottlieb Gmbh & Co | Adhesive fastener part with hook and device for producing the same |
| JP2569217Y2 (en) * | 1993-02-23 | 1998-04-22 | ワイケイケイ株式会社 | Hanging cloth fixture |
| JP2872555B2 (en) * | 1993-12-08 | 1999-03-17 | ワイケイケイ株式会社 | Anchor |
| JP2886458B2 (en) * | 1994-08-26 | 1999-04-26 | ワイケイケイ株式会社 | Integral molded surface fastener |
| JP2895403B2 (en) * | 1994-09-30 | 1999-05-24 | ワイケイケイ株式会社 | Curtain mountings |
| US5945193A (en) * | 1995-12-06 | 1999-08-31 | Velcro Industries B.V. | Touch fastener with porous metal containing layer |
| US5900350A (en) * | 1996-06-06 | 1999-05-04 | Velcro Industries B.V. | Molding methods, molds and products |
| US6276032B1 (en) | 2000-01-25 | 2001-08-21 | Kimberly-Clark Worldwide, Inc. | Mechanical fastening system having a plurality of engagement members which include stalk members |
| DE10085304B4 (en) * | 1999-12-15 | 2011-04-28 | Kimberly-Clark Worldwide, Inc., Neenah | Mechanical fastening system with multiple engaging parts containing stem parts |
| US6543099B1 (en) * | 2000-06-02 | 2003-04-08 | Velcro Industries B.V. | Varying the loop engageability of fastener element arrays |
| US6640348B1 (en) * | 2000-11-09 | 2003-11-04 | Velcro Industries B.V. | Forming continuous fastener material |
| FR2868135B1 (en) * | 2004-03-23 | 2009-11-20 | Aplix Sa | INTERMEDIATE FIXING ELEMENT |
| US7516524B2 (en) | 2005-03-11 | 2009-04-14 | Velcro Industries B.V. | Hook fastener components and methods of their manufacture |
| FR2889037B1 (en) * | 2005-07-29 | 2007-09-14 | Aplix Sa | SELF-AGRIPPTING HOOK-CROCHET FROM MOLDING |
| CN104981173B (en) | 2012-11-13 | 2017-06-27 | 奥索有限责任公司 | The fastener member of the structure being attached in orthopedic appliance and the method for fixing it |
| US9375341B2 (en) | 2013-01-31 | 2016-06-28 | Ossur Hf | Orthopedic device having detachable components for treatment stages and method for using the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3020613A (en) * | 1959-02-20 | 1962-02-13 | Louis H Morin | Ladder-like burr separable fastener |
| US4001366A (en) * | 1972-01-03 | 1977-01-04 | Ingrip Fasteners Inc. | Method for making self-gripping devices having integral trains of gripping elements |
| US4654246A (en) * | 1985-09-05 | 1987-03-31 | Actief, N.V. | Self-engaging separable fastener |
| US4672722A (en) * | 1986-04-28 | 1987-06-16 | Jmw Textiles | Single tape closure construction |
-
1990
- 1990-07-03 JP JP1990070990U patent/JP2545058Y2/en not_active Expired - Lifetime
-
1991
- 1991-06-28 CA CA002045993A patent/CA2045993C/en not_active Expired - Fee Related
- 1991-07-01 ES ES91110894T patent/ES2064009T3/en not_active Expired - Lifetime
- 1991-07-01 DE DE69104915T patent/DE69104915T2/en not_active Expired - Lifetime
- 1991-07-01 EP EP91110894A patent/EP0464754B1/en not_active Expired - Lifetime
- 1991-07-02 KR KR2019910010047U patent/KR940001871Y1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9924765B1 (en) * | 2016-09-23 | 2018-03-27 | Ykk Corporation Of America | Rail fastener |
Also Published As
| Publication number | Publication date |
|---|---|
| KR920001895U (en) | 1992-02-24 |
| KR940001871Y1 (en) | 1994-03-26 |
| EP0464754B1 (en) | 1994-11-02 |
| DE69104915T2 (en) | 1995-06-08 |
| EP0464754A1 (en) | 1992-01-08 |
| ES2064009T3 (en) | 1995-01-16 |
| JPH0431513U (en) | 1992-03-13 |
| DE69104915D1 (en) | 1994-12-08 |
| CA2045993A1 (en) | 1992-01-04 |
| JP2545058Y2 (en) | 1997-08-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |