JP2000139519A - Production of article with surface fastener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deformation possibly occurring at the base part and headed projection of a surface fastener in the case of producing an article with surface fastener integrally provided with the surface fastener and a support. SOLUTION: A surface fastener 12 is molded by combining a base die 30 for forming a base part 18 of the surface fastener 12, destructively detachable leg die 32 for forming leg parts 22 of plural headed projections 20 and head die 34 for forming head parts 24 of these headed projections 20. While leaving the leg die 32 around the leg parts 22 of plural headed projections 20, the base die 30 and head die 34 are detached from the surface fastener 12. A first support die 36 and a second support die 38 having recessed parts 38a for housing the headed projections 20 and leg die 32 of the surface fastener 12 are combined and a support 14 is formed by inserting the surface fastener 12 so that an article 10 with surface fastener can be integrally formed. Next, after the dies 36 and 38 are detached from the article 10 with surface fastener, the leg die 32 is destructively detached.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hook-and-loop fastener having a plurality of headed erected members, and a fixed fastener connected to a base of the hook-and-loop fastener with the plurality of headed lentils exposed. The present invention relates to a method for producing an article with a surface fastener, comprising:

[0002]

2. Description of the Related Art A hook-and-loop fastener including a base having a substantially flat main surface and a plurality of headed projections standing on the main surface of the base is known. In this type of hook-and-loop fastener, a head bulging out at the end of the leg of the headed protrusion exerts an engagement action with an engagement partner. Therefore, there is an advantage that a pair of hook-and-loop fasteners having a headed group of heads having the same structure without gender can be separably fixed to each other by engaging the heads of the headed group of heads. .

[0003] With this kind of hook-and-loop fastener, by combining a pair of hook-and-loop fasteners as described above, a fixing operation can be performed quickly and easily and a relatively large fixing force can be obtained. It is widely used as a fixing member for various structural parts, such as interior materials, fixed window glass, moldings and emblems for protecting or decorating the surface of a structure. In such applications,
There is provided an article with a hook-and-loop fastener in which a support having a function other than the fastener function is integrally attached to a base of the hook-and-loop fastener. Surface fastener-equipped articles, for example, when the support is a fixing member such as a bonding plate or a general clip made of a low-melting resin, is conveniently used as a surface fastener member that can be quickly fixed and installed on a desired structure via the support. If used and the support is the above-mentioned molding itself, it is advantageously used as a molding with hook-and-loop fastener.

[0004] The above-mentioned article with a hook-and-loop fastener can be manufactured by an insert molding process as described in, for example, JP-A-7-42714. US Pat. No. 5,242,6 discloses a method for forming a plurality of headed protrusions of a hook-and-loop fastener.
It is particularly preferred to employ an injection molding process using a destructively removable mold as disclosed in No. 46. The manufacturing process of the conventional article with a hook-and-loop fastener is outlined with reference to FIG.

First, (a) a base mold 100 having a cavity for molding a base of a surface fastener, a leg mold 102 having a cavity for molding a leg of a headed head, Head type 1 having a cavity for forming the head of a headed head
04 is prepared. Here, the leg mold 102 is a mold that can be destructively detached from the molded surface fastener by various mechanical or chemical means such as melting, melting, breaking, crushing, and cutting. Next, (b) each mold 100, 102, 104
Are combined such that the respective gaps allow fluid flow, and in this state, the molten resin material is injected into the gaps and solidified, so that the base 106 and the plurality of headed stems 108 are formed.
Are formed integrally with each other.

(C) After forming the hook-and-loop fastener 110, the base mold 100 and the head mold 104 are removed from the hook-and-loop fastener 110 while leaving the leg mold 102, and further, a plurality of headed protrusions 1 are formed.
Then, the leg mold 102 is destructively detached from the leg 112 at 08. Next, (d) a void portion 114a for molding the support
And a second support mold 116 having a concave portion 116a capable of accommodating the plurality of headed protrusions 108 of the hook-and-loop fastener 110. And (e) the second
A plurality of headed protrusions 108 of the hook-and-loop fastener 110 are inserted into the recesses 116a of the support mold 116, and the peripheral region of the base 106 of the hook-and-loop fastener 110 is brought into close contact with the surface of the recess to form the first support mold 114 and the second support mold. 116 and the hook-and-loop fastener 110 is arranged as an insert in the gap 114a. In this state, the molten resin material is injected into the voids 114a and solidified, whereby the support 118 is formed. As a result, (f) an article 120 with a hook-and-loop fastener formed by integrally connecting the support body 118 to the base 106 of the hook-and-loop fastener 110 is formed.

[0007]

According to the above-mentioned conventional method for manufacturing an article with a hook-and-loop fastener, when the hook-and-loop fastener is arranged as an insert in a mold to form a support, FIG.
As shown in (e), the concave portion 116 of the second support die 116
a plurality of headed protrusions 108 of the hook-and-loop fastener 110 on the surface of
In general, the hook-and-loop fastener 110 is arranged in a state where the head 122 is substantially in contact with the head. However, in this state, when the injection pressure of the molten resin material of the support 118 is applied to the base 106 of the hook-and-loop fastener 110, the base 106 is bent, and the plurality of headed protrusions 108 It is pressed against the support mold 116. As a result, there arises a problem that the headed stem 108 cannot withstand the pressure and the legs 112 are particularly plastically deformed.

When plastic deformation occurs in a plurality of headed protrusions of the surface fastener, it becomes difficult to engage the surface fasteners, and even if the fasteners can be engaged, the fixing force tends to decrease. Therefore, after the insert molding step, an article with a hook-and-loop fastener having a deformed headed projection having inferior engagement ability is produced. Further, in order to prevent plastic deformation of the headed head, it is conceivable to place a hook-and-loop fastener with a gap between the surface of the recess of the second support type and the heads of the headed heads. However, even in that case, the base of the hook-and-loop fastener is bent by receiving the injection pressure of the molten resin material. And
When the support is formed in a state where the base is bent, even if the plastic deformation of the headed head is avoided, the spacing between adjacent headed heads varies, so that the engagement ability is also poor. An article with a hook-and-loop fastener is produced.

In order to solve such a problem, it is conceivable to reduce the injection pressure or the injection speed of the molten resin material of the support or to increase the thickness of the base. But,
If the injection pressure or injection speed of the molten resin material is reduced, sinkage occurs in the support due to poor filling or local shrinkage, and if the thickness of the base is increased, the overall height of the article with the surface fastener increases, In any case, there is a fear that the appearance and function of the article with the hook-and-loop fastener may be impaired. Alternatively, a measure for providing a projection for supporting the base of the hook-and-loop fastener against the injection pressure of the molten resin material may be provided on the surface of the concave portion for receiving the headed group of hook-and-loop fasteners of the second support type. However, in this case, there is a problem that the labor and cost required for manufacturing the second support die increase, and the manufacturing cost of the article with the hook-and-loop fastener increases.

An object of the present invention is to provide a method for manufacturing an article with a hook-and-loop fastener integrally provided with a hook-and-loop fastener and a support, without impairing the appearance and function of the finished article with a hook-and-loop fastener and for producing a molding die. Without increasing labor and cost, it is possible to reliably prevent deformation that can occur in the base of the hook-and-loop fastener and the headed head during the manufacturing process, and thus it is possible to inexpensively manufacture an article with a hook-and-loop fastener having an appropriate fastener function. It is to provide a method.

[0011]

Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 comprises a base and a plurality of headed protuberances erected on the base, and each of the headed protuberances is provided. A hook-and-loop fastener having a leg connected to the base at one end and a head connected to the other end of the leg, and fixedly connected to the base of the hook-and-loop fastener with a plurality of headed projections exposed. A method for manufacturing an article with a hook-and-loop fastener comprising:
A base mold for forming the base of the hook-and-loop fastener, a destructively detachable leg mold for forming the legs of a plurality of headed protrusions of the hook-and-loop fastener, and a head for forming the heads of these headed hooks Part type,
Prepare a support mold for molding the support, inject the molten resin material into the gap formed by combining the base mold, the leg mold and the head mold, and solidify, integrally mold the surface fastener, Separate the base type and head type from the hook-and-loop fastener, the hook-and-loop fastener in the state where the leg type is attached to the legs of the plurality of headed stems,
The molten material is injected into the gap defined between the base of the hook-and-loop fastener placed on the support mold and the support mold, and solidified to form the support and the hook-and-loop fastener An article with a hook-and-loop fastener, wherein the article is integrally formed, the support mold is detached from the article with the hook-and-loop fastener, and the leg mold is destructively detached from a plurality of heads of the article with the hook-and-loop fastener. And a method for producing the same.

According to a second aspect of the present invention, there is provided a base and a plurality of headed protuberances erected on the base.
A hook-and-loop fastener having a leg connected to the base at one end and a head connected to the other end of the leg, and is fixedly connected to a base of the hook-and-loop fastener with a plurality of headed protrusions exposed. A method of manufacturing an article with a hook-and-loop fastener comprising a support, comprising: a base mold for molding a base of the hook-and-loop fastener; and a destructively detachable mold for molding legs of a plurality of headed protrusions of the hook-and-loop fastener. A base mold and a leg are prepared, in which a leg mold and a head mold for molding the heads of the headed stems are prepared, a support is prepared, the support is arranged on the base mold as an insert, and the support is arranged. Inject the molten resin material into the void formed by combining the part mold and the head mold, solidify it, integrally mold the hook-and-loop fastener, and integrally form the article with hook-and-loop fastener, from the article with hook-and-loop fastener Article with base fastener and head mold detached and hook-and-loop fastener To provide a method of manufacturing a surface fastener with the article, characterized in that the desorption destructively legs form a plurality of headed stems.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments with reference to the accompanying drawings. In the drawings, the same or similar components are denoted by common reference numerals. FIG. 1 shows a method for manufacturing an article with a hook-and-loop fastener according to one embodiment of the present invention. The article 10 with a hook-and-loop fastener manufactured by the illustrated method (FIG. 1 (f)) integrally includes a hook-and-loop fastener 12 and a support 14 capable of adding a function other than the fastener function to the hook-and-loop fastener 12.

The hook-and-loop fastener 12 is a face-to-face engagement type fastener member made of an integrally molded resin material, and has a base 18 having a substantially flat main surface 16 and a main surface 1 of the base 18.
6 is provided with a plurality of headed protrusions 20 erected at a predetermined distance. Each headed stem 20 is integrally connected to the base 18 at the base end and projects substantially upright from the main surface 16.
And a head 24 integrally connected to the end of the leg 22 and bulging radially from the outer surface of the leg 22. As an example of a hook-and-loop fastener integrally formed with a plurality of such mushroom-shaped headed stems at its base, “Super Dual Lock (trade name)” commercially available from Minnesota Mining and Manufacturing Company of Minnesota, USA No.

The support 14 can be formed with various types and functions. For example, when the support 14 is a fixing member such as a bonding plate or a general clip made of a low melting point resin, the surface fastener-equipped article 10 can be quickly fixed and installed on a desired structure via the support 14. It is conveniently used as a member. When the support 14 is the molding described above, the article 1 with the hook-and-loop fastener is used.
0 is conveniently used as a molding with hook-and-loop fastener.

Hereinafter, a manufacturing process of the article 10 with a hook-and-loop fastener will be described with reference to FIGS. 1 (a) to 1 (f). First,
(A) A base mold 30 having a gap 30a for forming the base 18 of the surface fastener 12 and a gap 32a for forming the legs 22 of the plurality of headed protrusions 20 of the surface fastener 12 are provided. Leg mold 32 and a head mold 3 having a cavity 34a for molding the head 24 of the headed stem 20.
4 and are prepared. Here, the leg mold 32 is a U.S. Pat.
As disclosed in U.S. Pat. No. 242,646, the mold can be destructively detached from the molded surface fastener 12 by various mechanical or chemical means such as melting, melting, breaking, crushing, and cutting. As an example, the leg mold 32 is formed in a separate process from a resin material containing water-soluble polyvinyl alcohol as a main component, as a plate-like element having a large number of cylindrical void portions 32a.

Next, (b) the base mold 30, the leg mold 32, and the head mold 34 are inserted into the respective gaps 30a, 32a, 3a.
The base 18 and the plurality of headed stems 20 are integrally formed by injecting the molten resin material into the voids 30a, 32a, and 34a and solidifying the molten resin material in such a state as to allow fluid communication with each other. The provided surface fastener 12 is formed. After forming the hook-and-loop fastener 12, (c) the leg mold 32 is left around the legs 22 of the plurality of headed stems 20 to form the base mold 3.
0 and the head mold 34 are removed from the hook-and-loop fastener 12.

Next, (d) a first support die 36 having a cavity 36a for molding the support 14, a plurality of headed protrusions 20 of the hook-and-loop fastener 12, and a leg die 32 can be accommodated. A second support die 38 having a recess 38a is prepared.
(E) The plurality of headed protrusions 20 of the hook-and-loop fastener 12 and the leg mold 32 are inserted into the recesses 38 a of the second support mold 38, and the hook-and-loop fasteners 12 of the hook-and-loop fastener 12 are inserted into the gaps 36 a of the first support mold 36. By disposing the base 18, the first support mold 3
6 and the second support mold 38 are combined. At this time, the outer peripheral surface of the leg mold 32 is brought into close contact with the concave surface of the second support die 38, and the outer peripheral surface of the base 18 of the hook-and-loop fastener 12 is brought into close contact with the surface of the void of the first support die 36. As a result, the hook-and-loop fastener 12 in a state where the leg mold 32 is attached to the leg 22 of the plurality of headed stems 20 becomes the first and second support molds 36,
38 are arranged as inserts. In this state, the support 14 is formed by injecting and solidifying a molten resin material into the gap 36a. As a result, the support body 14 is integrally connected to the base 18 of the hook-and-loop fastener 12, and the article 10 with the hook-and-loop fastener is formed.

Thereafter, (f) the article 10 with the surface fastener
From the first support mold 36 and the second support mold 38,
Furthermore, the leg mold 32 is moved from the leg 22 of the plurality of headed stems 20.
Is destructively desorbed. In this way, the article 10 with the hook-and-loop fastener obtained by integrally attaching the support 14 to the base 18 of the hook-and-loop fastener 12 with the plurality of headed protrusions 20 exposed is obtained.

According to the method for manufacturing the article 10 with the hook-and-loop fastener shown in FIG. 1, when the hook-and-loop fastener 12 is arranged as an insert in the first support mold 36 and the second support mold 38 to form the support 14, As in the conventional case, as shown in FIG. 1E, the head 24 of the plurality of headed protrusions 20 of the surface fastener 12 is substantially in contact with the surface of the concave portion 38a of the second support die 38. , The hook-and-loop fastener 12 is arranged.
At this time, the leg mold 32 accommodated in the concave portion 38a of the second support mold 38 while being attached to the hook-and-loop fastener 12 fixedly holds the plurality of headed projections 20 at predetermined standing positions during molding. Act like so. Therefore, in this state, the support 1
When the molten resin material of No. 4 is injected into the gap 36a, the injection pressure of the molten resin material is applied to the base 18 of the hook-and-loop fastener 12, and the heads 24 of the plurality of headed protrusions 20 are moved to the second support mold 38.
The plastic deformation of the leg 22 of the headed stem 20 is reliably prevented by the reinforcing action of the leg mold 32 despite the pressing.

At the same time, the heads 24 of the plurality of headed stems 20 uniformly contact the surface of the recess 38a of the second support die 38,
Moreover, the leg mold 32 stacked on the base 18 is
Since the reinforcing member 8 is also reinforced, the deformation of the base 18 is reliably prevented. Accordingly, the pressing action of locally pressing the heads 24 of the several headed stems 20 against the surface of the concave portion 38a of the second support die 38 due to the deformation of the base 18 is alleviated. 24 will also be prevented.

As described above, according to the manufacturing method of FIG. 1, during the manufacturing process, the base 18 of the hook-and-loop fastener 12 and the headed head 20
Since the deformation which may occur in the hook-and-loop fastener is prevented beforehand, the article 10 with the hook-and-loop fastener which can exhibit an appropriate fastener function while maintaining the engaging ability of the hook-and-loop fastener 12 at a high level can be manufactured. Further, at the time of molding the support 14, the molten resin material can be injected at a pressure and at a speed sufficient to avoid defects such as sink marks after molding, and the base 1 of the surface fastener 12 can be injected.
Since there is no need to unnecessarily increase the thickness of 8, the article 10 with the hook-and-loop fastener provided with the support 14 having excellent appearance and function can be manufactured. Furthermore, since it is not necessary to form a projection or the like for supporting the base 18 of the hook-and-loop fastener 12 on the second support die 38, it is possible to suppress an increase in labor and cost required for manufacturing a molding die. An increase in manufacturing costs can be prevented.

In FIG. 1E, the outer peripheral surface of the leg mold 32 is in close contact with the concave surface of the second support die 38, and the outer peripheral surface of the base 18 of the surface fastener 12 is the first support die 36
Therefore, the molten resin material is prevented from penetrating into the concave portion 38 a of the second support die 38 during the formation of the support 14. As a result, a decrease in the function of engaging the headed projection 20 of the surface fastener 12 due to the mixture of the resin pieces is avoided.

FIGS. 2A and 2B show a modification of the manufacturing method shown in FIG. In this modification, in step (a) corresponding to FIG. 1D, a gap 40 a for molding the support 14 and a plurality of headed protrusions 20 of the surface fastener 12 are formed.
The first support mold 40 has a recess 40b capable of accommodating the leg mold 32 attached to the head, and the second has a recess 42a capable of accommodating the heads 24 of the plurality of headed protrusions 20 of the surface fastener 12.
A support mold 42 is prepared. Then, in a step (b) corresponding to FIG. 1E, the concave portion 42a of the second support mold 42 is formed.
The head 24 of the plurality of headed stems 20 of the hook-and-loop fastener 12
And the gap 40a of the first support mold 40 is inserted.
The base 18 and the leg mold 32 of the hook-and-loop fastener 12 are inserted into the recesses 40b and the first support mold 40 and the second molds, respectively.
Combine with the support mold 42. At this time, the leg mold 32 is closely held between the first support mold 40 and the second support mold 42 in the outer peripheral region. Thereby, a plurality of headed stems 20
The hook-and-loop fastener 12 with the leg mold 32 attached to the leg 22 is disposed as an insert in the first and second support molds 40 and 42. In this state, the molten resin material is injected into the void portion 40a and solidified, so that the support 14
Is molded. As a result, the support 14 is integrally connected to the base 18 of the hook-and-loop fastener 12, and the article 10 with a hook-and-loop fastener (FIG. 1) is formed.

According to the method for manufacturing the article 10 with the hook-and-loop fastener shown in FIG. 2, while the molten resin material of the support 14 is injected into the gap 40a in the same manner as in the method of FIG. The reinforcing action prevents deformation of the base 18 of the hook-and-loop fastener 12 and the plurality of headed stems 20. Moreover, in this method, since the leg mold 32 is closely held between the first support mold 40 and the second support mold 42 in the outer peripheral region,
The hook-and-loop fastener 12 and the leg mold 32 are fixedly held at predetermined positions in both molds 40 and 42 against the injection pressure of the molten resin material. As a result, while the molten resin material of the support 14 is injected into the gap 40a, the force pressing the heads 24 of the plurality of headed protrusions 20 of the surface fastener 12 against the surface of the recess 42a of the second support mold 42 is increased. It is further alleviated, and the deformation of the head 24 is more effectively prevented.

FIG. 3 shows a method for manufacturing an article with a hook-and-loop fastener according to another embodiment of the present invention. Article 10 with hook-and-loop fastener manufactured by the method of FIG. 3 (FIG. 3D)
Has the same configuration as the article 10 with the hook-and-loop fastener manufactured by the method of FIG.

Hereinafter, a manufacturing process of the article 10 with the hook-and-loop fastener will be described with reference to FIGS. 3 (a) to 3 (d). First,
(A) A support 14 formed in another step is prepared. Further, (b) a base mold 44 having a cavity 44a for molding the base 18 of the surface fastener 12, and a surface fastener 1
Leg mold 32 having a gap 32a for forming the leg 22 of the plurality of headed stems 20;
And a head mold 34 having a cavity 34a for molding the head 24 of FIG. The base mold 44 holds the base 18 of the hook-and-loop fastener 12 in a state in which
It has the same configuration as the base mold 30 used in the method of FIG. The leg mold 32 and the head mold 34 are the same as those used in the method of FIG.

Next, (c) the cavity 44a of the base mold 44
The support 14 is arranged as an insert in the base mold 4
4, the leg mold 32 and the head mold 34 are respectively
4a, 32a, and 34a are combined so that they can flow through each other. In this state, the molten resin material
a, 32a, 34a by injecting and solidifying,
The hook-and-loop fastener 12 integrally having the base 18 and the plurality of headed protrusions 20 is formed. As a result, the base 18 of the hook-and-loop fastener 12 is integrally connected to the support 14, and the article 10 with the hook-and-loop fastener is formed.

Thereafter, (d) the article 10 with the surface fastener
Then, the base mold 44 and the head mold 34 are detached from the base, and further, the leg mold 32 is destructively detached from the legs 22 of the plurality of headed stems 20. In this way, the article 10 with the hook-and-loop fastener obtained by integrally attaching the support 14 to the base 18 of the hook-and-loop fastener 12 with the plurality of headed protrusions 20 exposed is obtained.

According to the method of manufacturing the article 10 with the hook-and-loop fastener shown in FIG. 3, the hook-and-loop fastener 12 is formed in a state where the support 14 formed in a separate step is disposed in the base mold 44 as an insert. , 32, 34 voids 4
The surface fastener 12 can be molded without deformation according to the shape of 4a, 32a, 34a, while its base 18 can be integrally connected to the support 14. Therefore, it is possible to produce the article 10 with the hook-and-loop fastener that can maintain the engaging ability of the hook-and-loop fastener 12 at a high level and exhibit an appropriate fastener function. In addition, since the support 14 is formed in a separate step, the article 10 with the hook-and-loop fastener provided with the support 14 having excellent appearance and function can be manufactured. Furthermore, a mold 4 having substantially the same structure as a normal mold for molding only a hook-and-loop fastener is used.
Since 4, 32, and 34 can be used, an increase in labor and cost required for manufacturing a mold can be suppressed, and as a result, an increase in manufacturing cost of the article 10 with the hook-and-loop fastener can be prevented.

The article with a hook-and-loop fastener manufactured by each of the above manufacturing methods can have various shapes and dimensions. For example, the base of the hook-and-loop fastener can have a planar shape such as a rectangle, a polygon, a circle, an ellipse, and the like.
Headed heads can be of various shapes, such as mushrooms having a hemispherical, spherical, conical or hat-shaped head, hooks, loops, umbrellas, palm trees, arrowheads, etc. It can have a shape. Further, the leg portion can have a shape such as a columnar shape, an elliptical columnar shape, a prismatic shape, a conical shape, and the like.

The article with a hook-and-loop fastener manufactured by each of the above manufacturing methods can be manufactured from various materials. For example, the material of the hook-and-loop fastener is polyamide, polyimide,
It can be selected from polymer materials such as polyester, polypropylene, polyethylene, ionomer, polyacetal, and the like. Of these, polyamide is excellent in heat resistance and mechanical strength, and thus is suitable for suppressing deformation of the surface fastener during molding of the support in the production method of FIG. Further, the material of the support can be selected from a polymer material generally used for insert molding, such as a thermoplastic resin, a curable resin (by heat, humidity, radiation, etc.), and various materials of the above-described surface fastener. . A support made in a plate shape from a material having a lower melting point than the material of the hook-and-loop fastener can be used as a fixing member that can be thermally fused to the structure by using the same low-melting material on the surface of the structure.

[0033]

As is apparent from the above description, according to the present invention, when manufacturing an article with a hook-and-loop fastener integrally including a hook-and-loop fastener and a support, the base and the base of the hook-and-loop fastener are manufactured during the manufacturing process. Deformation that may occur in the head stem can be reliably prevented. In addition, an article with a hook-and-loop fastener provided with a support having excellent appearance and function can be manufactured, and the labor and cost required for manufacturing a mold are not increased. Therefore, the engaging function of the hook-and-loop fastener can be maintained at a high level, and an article with hook-and-loop fastener having an appropriate fastener function can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a view showing a method for manufacturing an article with a hook-and-loop fastener according to an embodiment of the present invention, and (a) to (f) are cross-sectional views of a molding die and an article with a hook-and-loop fastener showing each step in the order of processes. .

2A and 2B are views showing a modification of the manufacturing method of FIG. 1, wherein FIG. 2A is a step corresponding to FIG. 1D, and FIG.
It is sectional drawing which shows each step corresponding to (e).

FIG. 3 is a view showing a method for manufacturing an article with a hook-and-loop fastener according to another embodiment of the present invention, and (a) to (d) are cross-sectional views of a molding die and an article with a hook-and-loop fastener showing each step according to a process order. is there.

4A to 4F are cross-sectional views of a molding die and an article with a hook-and-loop fastener showing respective steps according to a process order.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Article with hook-and-loop fastener 12 ... hook-and-loop fastener 14 ... Supporting body 18 ... Base 20 ... Headed head 22 ... Leg 24 ... Head 30, 44 ... Base type 32 ... Leg type 34 ... Head type 36, 40 ... first support type 38, 42 ... second support type

Claims (2)

[Claims] 1. A head comprising a base and a plurality of headed protuberances erected on the base, each of the headed prongs having a leg connected to the base at one end and a head connected to the other end of the leg. A method for manufacturing an article with a hook-and-loop fastener comprising: a hook-and-loop fastener having a head to be connected; and a support fixedly connected to the base of the hook-and-loop fastener with the plurality of headed protrusions exposed. A base mold for molding the base of the hook-and-loop fastener, a destructively detachable leg mold for molding the legs of the plurality of headed stems of the hook-and-loop fastener, A head mold for molding the head of the protrusion and a support mold for molding the support are prepared, and a molten resin is formed in a gap formed by combining the base mold, the leg mold, and the head mold. A material is injected and solidified to integrally mold the hook-and-loop fastener. Removing the part mold and the head mold, disposing the hook-and-loop fastener in a state where the leg mold is attached to the legs of the plurality of headed stems as an insert in the support mold, A molten material is injected into a gap defined between the base of the placed surface fastener and the support mold, and solidified to form the support and integrally form the article with the surface fastener. An article with a hook-and-loop fastener, comprising: detaching the support mold from the article with a hook-and-loop fastener; and destructively detaching the leg mold from the plurality of headed protrusions of the article with a hook-and-loop fastener. Manufacturing method. 2. A base comprising: a base; and a plurality of headed protrusions erected on the base, each of the headed protrusions having a leg connected to the base at one end and a head connected to the other end of the leg. A method for manufacturing an article with a hook-and-loop fastener comprising: a hook-and-loop fastener having a head to be connected; and a support fixedly connected to the base of the hook-and-loop fastener with the plurality of headed protrusions exposed. A base mold for molding the base of the hook-and-loop fastener, a destructively detachable leg mold for molding the legs of the plurality of headed stems of the hook-and-loop fastener, Preparing a head mold for molding the head of the ram, preparing the support, arranging the support as an insert in the base mold, the base mold on which the support is arranged, and the legs Inject the molten resin material into the cavity formed by combining the mold and the head mold, and solidify it. Integrally forming the hook-and-loop fastener and integrally forming the hook-and-loop fastener article; removing the base mold and the head mold from the hook-and-loop fastener article; the plurality of heads of the hook-and-loop fastener article; A method for manufacturing an article with a hook-and-loop fastener, wherein the leg mold is destructively detached from the protrusion.