JP2010068928A - Hook-and-loop fastener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide flexibility for a hook-and-loop fastener having a fastener member composed of columnar small projections. <P>SOLUTION: This is a hook-and-loop fastener 1 composed of a pair of fabrics 3 having a fastener members 2 consisting of the same male and female members. Each fabric 3 is provided with a plurality of blocks having the fastener members 2. The fastener members 2 of each of the blocks have a plurality of synthetic resin-made columnar projections 4 on the surface side of the fabric 3 and have at least one synthetic resin-made sheet 5 on the reverse side of the fabric 3. The columnar projections 4 and the sheet 5 are integrated through the fabrics 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hook-and-loop fastener.

  An invention that is well known and widely used as a hook and loop fastener is known as "Magic Tape" (trademark) or "Velcro" (trademark). It consists of a number of loops provided on one side and a number of ridges provided on the other side.

Many variations of this known hook and loop fastener are also known. What is relatively close to the present invention is the invention of Patent Document 1 below. This is composed of a number of columnar protrusions provided on one surface and a number of columnar protrusions provided on the other surface.
US Pat. No. 3,101,517

  The invention of Patent Document 1 seems to have never spread. Compared to the case of loops and heels, the base surface that supports the columnar protrusions is visible from the flat surface and does not look good, and it tends to be hard, so it is imagined that it may be unsuitable for uses such as clothes. The Moreover, it seems to be cut into a desired shape each time it is processed, and is difficult to use.

  As in the invention of Patent Document 1, the present invention is a surface fastener including a large number of cylindrical protrusions provided on one surface and a large number of cylindrical protrusions provided on the other surface. It is intended to provide a hook-and-loop fastener that is expected to have various applications such as clothing.

  Claim 1 of the present invention is a pair of surface fasteners made of a cloth provided with a fastener member, each cloth having a plurality of blocks provided with the fastener member, and the fastener member of each block is the cloth A plurality of synthetic resin cylindrical projections on the surface side, and at least one synthetic resin thin plate on the back side of the fabric, the cylindrical projection and the thin plate permeate the fabric. It is characterized by being integrated.

  A tenth aspect of the present invention is a pair of surface fasteners made of a cloth provided with a fastener member, each cloth having a plurality of blocks provided with the fastener member, and the fastener member of each block is A plurality of synthetic resin cylindrical projections and a synthetic resin thin plate integrated with the cylindrical projections are provided on the surface side of the fabric.

  The hook-and-loop fastener according to the first aspect of the present invention is easy to manufacture and process since the hook-and-loop fastener is made into a block unlike the technique of the first invention. Furthermore, since the base which supports the cylindrical protrusion cannot be seen from a plane, it looks good. Also in claim 1 of the present invention, a thin plate is formed on the back surface of the fabric, but it can be made softer and thinner than the base used in patent invention 1, so that it is rich in flexibility.

  The hook-and-loop fastener according to claim 10 of the present invention is easy to manufacture and process because the hook-and-loop fastener is made into a block, unlike the technique of Patent Invention 1.

  The fastener member is preferably male and female in terms of molding, and has a plurality of cylindrical small protrusions that stand up in block units from the surface of the fabric. Each small protrusion has a slightly larger diameter at the tip bulge than the neck.

  The cloth to be used may be a cloth having a large area. However, in the present invention, the fastener member is provided for each block, so that it is suitable for using a tape-shaped cloth.

  One block can be, for example, a square, a rectangle, a circle, an ellipse, a polygon such as a pentagon / hexagon, or any other irregular shape.

For example, in the case of a rectangle, the arrangement of small protrusions in each block includes the following two methods.
(A) Method of arranging vertically n and horizontally m per block (b) Per block, vertically (or horizontally) (n, n−1, n, n−1) (...) (see attached Fig. 1 (a))

  In the former case, the arrangement of the small protrusions is narrower in the vertical and horizontal directions than in the 45 ° diagonal direction. When trying to join the mating fastener member from the front, the small protrusion row must be shifted in an oblique direction in order to avoid collision of the small protrusions. For this reason, the male and female fastener members do not overlap and are displaced in one direction by a half interval of the small protrusions.

  In the latter case, the arrangement of the small projections is wider in the vertical and horizontal directions than in the 45 ° oblique direction, so that when the mating fastener member is engaged, the other small projections are arranged in the vertical and horizontal intervals. It does not enter the gap in the diagonal direction. Therefore, there is an advantage that when the mating fastener member is joined from the front, the fastener members are overlapped without being displaced (see attached FIG. 4B).

  The tape fabric needs to be a fabric that allows the molten resin to pass through without being melted, and may be a woven fabric or a knitted fabric. For example, a cotton fabric, a blended fabric, or the like can be employed. The synthetic resin passes through the tape fabric and is also exposed on the back surface to form at least one thin plate per block.

  In order to give flexibility to the thin plate, it is preferable to provide a plurality of exposed tape portions in a portion where there is no small protrusion on the surface side. It is also possible to increase the area of the tape exposed portion and, in an extreme case, to provide a number of thin plates corresponding to the portion having small protrusions on the surface side.

  As the synthetic resin, a thermoplastic resin such as a polyether ester elastomer (“Hytrel” (trademark) or the like) or a polyacetal resin can be used.

  Although it can be used in the state of the above-described invention, the thin plate exposed on the back surface of the tape is visible to the human eye and may be unsightly. In such a case, it is also possible to provide a second fabric behind the first fabric and cover the thin plate.

  For example, the first tape-shaped fastener can be cut into one or several blocks to form a piece of tape, and the piece with the fastener member can be attached to another fabric tape by sewing or using an adhesive.

  Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

  FIG. 1 shows a tape-shaped surface fastener 1 according to a first embodiment of the present invention, in which (a) is a front view, (b) is a side view, and (c) is a back view. FIG. 2 is a perspective view thereof. The tape-shaped surface fastener having the same shape can be used as a male member or a female member.

  The fastener member 2 has a plurality of small cylindrical protrusions 4 that rise in block units from the surface of the dough tape 3. The dough tape 3 is a blended fabric, and the cylindrical small protrusions 4 are made of a polyetherester elastomer known as “Hytrel” (trademark). As shown in the enlarged view of FIG. 3, each of the small protrusions has a thickest portion 41 at the tip that is slightly larger in diameter than the neck portion 42. The cutting edge is tapered to facilitate engagement. A small base 43 is provided at a position in contact with the fabric 3. In this example, the size of one block was 10.6 mm in length and 12.6 mm in width. The height of one small protrusion 4 was 2 mm, and the diameter was 2.0 mm at the tip bulging portion 41 and 1.98 mm at the neck portion 42.

  In this embodiment, there are 6 rows of small projections 4 consisting of 3, 2, 3, 2, 2 in the vertical direction per block, and 5 rows of 3 in the horizontal direction. Therefore, 15 small protrusions 4 are formed as a whole.

  In the small protrusions 4, the vertical and horizontal intervals L1 are wider than the 45 ° oblique interval L2. As shown in FIG. 4, when engaged with the mating fastener member 2, the mating small projection 4 enters the vertical and horizontal intervals L1, and does not enter the diagonal interval L2. Therefore, the blocks are completely overlapped.

  When the pair of dough tapes 3 having the fastener members 2 are joined, the small protrusions 4 of both blocks are fitted together while sliding, and are frictionally engaged (FIG. 4B). However, when the dough tape 3 is held with a hand and peeled off with a certain force, it can be separated.

  In order to mold the fastener member 2, a dough tape 3 having a roughness through which molten resin passes and penetrates by molding pressure is disposed between upper and lower molds (not shown) in which a fastener molding space is formed. Is injected into the molding space. The front side and the back side formed on both sides of the dough tape 3 are integrated by a synthetic resin that passes through the dough tape 3. As shown in FIGS. 1B and 1C, one thin plate 5 is formed per block on the back side. In order to give flexibility to the tape, the thin plate 5 on the back surface is provided with a fabric exposed portion 51 in various places. In this embodiment, the tape fabric is exposed at 15 locations.

  In Example 1, the synthetic resin thin plate 5 is exposed on the back surface of the dough tape 3. Since the back surface of the dough tape 3 is often not visible, such as when attached to clothes, it can be said that there is no problem, but in the second embodiment, it is possible to prevent the thin plate 5 on the back surface from being shown.

  In this method, as shown in FIG. 5, the block-attached tape 3 manufactured in Example 1 is cut in units of blocks, and the cut tape 31 is attached to another second tape 6. In the example shown in FIG. 5, the block-attached tape 31 cut in the horizontal direction in Example 1 is attached to the second tape 6 in the vertical direction. The attachment method is preferably sewing with a thread, but other methods may be used.

  By doing so, as shown in FIG. 6, the synthetic resin thin plate 5 exposed on the back surface of the first tape is covered with the second tape 6.

  Example 3 is an example of using this dough tape. FIG. 7 shows the left and right stoppers 8 (81, 82) at the end of the brassiere.

  The tape 31 with a block based on the concept of Example 2 is used as a stopper. However, unlike Example 2, the contact surface is increased by providing two or two blocks 2 adjacent to each other.

  9A is a plan view, FIG. 9B is a side view, and FIG. 10C is a rear view of the fourth embodiment of the present invention. FIG. 10 is a partially enlarged cross-sectional view of FIG.

  In this embodiment, the block 2A does not pass through the fabric and is manufactured as a separate body from the tape fabric, and then sewn with a thread 9 to the tape fabric 1A. Therefore, the thin plate 5A appears only on the surface of the tape fabric 1A. In order to sew with a sewing machine, the thin plate 5A is preferably made of a soft material as much as possible, and it is preferable that holes 91 are formed in advance at a plurality of positions for passing the sewing thread. In this embodiment, the portion to be sewn with the thread 9 has a quadrangular shape at the center of the block 2A, but may be sewn along the edge.

It is a tape-shaped surface fastener of Example 1 of this invention, (a) is a front view, (b) is a side view, (c) is a back view. It is a perspective view of the tape of FIG. It is an enlarged view of a small protrusion. (A) is sectional drawing before joining of a tape-shaped surface fastener, (b) is sectional drawing which shows the state after joining. It is a tape-shaped surface fastener of Example 2 of this invention, (a) is a front view, (b) is a back view. It is sectional drawing of Fig.5 (a). It is a brassiere end part concerning Example 3 of the present invention, and (a) and (b) are front views. It is a brassiere end part concerning Example 3 of the present invention, and (c) and (d) are back views. (A) Top view, (b) Side view, (c) Back view of Example 4 of the present invention. It is a partially expanded sectional view of Fig.9 (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Surface fastener 2 Block-shaped fastener member 3 Dough tape 31 Cut tape 4 Cylindrical small protrusion 41 Tip bulging part 42 Neck part 43 Base 5 Thin plate 51 Dough exposed part 6 Second tape 8 Stopper 9 Yarn

Claims (10)

A pair of hook-and-loop fasteners (1) comprising a fabric (3) with fastener members (2),
Each dough (3) has a plurality of blocks with the fastener member (2),
The fastener member (2) of each block has a plurality of synthetic resin columnar projections (4) on the surface side of the fabric (3), and at least one sheet on the back side of the fabric (3). It has a thin plate (5) made of synthetic resin,
The surface fastener, wherein the cylindrical protrusion (4) and the thin plate (5) are integrated through the cloth (3).   The hook-and-loop fastener according to claim 1, wherein the cloth (3) is tape-shaped.   The hook-and-loop fastener according to claim 1 or 2, wherein the small protrusion (4) has a tip bulge portion (41) having a diameter larger than that of the neck portion (42).   The arrangement of the small protrusions (4) in each block of the fastener member (2) is in one vertical or horizontal direction per block (n, n-1, n, n-1, ...). The hook-and-loop fastener according to any one of claims 1 to 3, wherein the hook-and-loop fastener is a plurality of rows made up of repetitions of   The surface fastener in any one of Claims 1-4 which provided the some tape exposure part (51) in the said thin plate (5).   The surface fastener according to any one of claims 1 to 5, wherein the synthetic resin is a polyether ester elastomer.   The surface fastener according to any one of claims 1 to 5, wherein the synthetic resin is a polyacetal resin.   The hook-and-loop fastener according to any one of claims 1 to 7, wherein a second cloth (6) is provided behind the first cloth (3) to cover the thin plate (5).   The hook-and-loop fastener according to claim 8, wherein the first cloth (3) is cut into blocks or several blocks and attached to the second cloth (6). A pair of hook-and-loop fasteners (1A) made of a fabric (3A) provided with fastener members (2A),
Each fabric (3A) has a plurality of blocks with the fastener member (2A),
The fastener member (2A) of each block includes a plurality of synthetic resin columnar protrusions (4A) on the surface side of the fabric (3A), and a synthetic resin integrated with the columnar protrusions (4A). A surface fastener comprising a thin plate (5A) made of metal.

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