JPH0779813A - Face to face engagement fastener member and its manufacture - Google Patents

Abstract

PURPOSE: To provide an opposed surface engaging fastener member having a fixing means capable of easily and reliably fixing a base part to an object surface. CONSTITUTION: This opposed surface engaging fastener member 10 has a base part 12 and plural headed projecting pieces 14 erected on the base part 12. The respective headed projecting pieces 14 have a leg part 16 projecting in an almost erect shape from the base part 12 and a head part 18 connected to the tail end of the leg part 16. An extension part 28 to fix the base part 12 to an object surface is formed on the reverse 26 of the base part 12. The extension part 28 has a locking part 32 to engage with the object surface. The extension part 28 is integrally formed with the base part 12 in a casting mold to mold the base part 12 in a molding process of the opposed surface engaging fastener member 10. Therefore, since the extension part 28 is firmly connected to the base part 12 and is also excellent in reproducibility, a uniform fixing function is imparted to a large number of opposed surface engaging fastener members.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facing engagement fastener member. Further, the present invention relates to a method of manufacturing a facing engagement fastener member.

[0002]

2. Description of the Related Art Face-to-face engaging fastener members having a plurality of headed protrusions standing on the main surface of a base are known to have various structures. For example, there is one provided with a base made of cloth and a headed stem made of a plurality of resin monofilaments planted in the base. Further, a face-to-face engaging fastener member formed by integrally molding a base portion and a plurality of headed stems from a resin material is known. These face-to-face engaging fastener members may be used as a hermaphroditic fastener by combining those having the same shape, or may be used in combination with another female fastener member that can be engaged with each other.

FIG. 9 shows an example of a conventional fastener composed of a combination of face-to-face engaging fastener members having the same shape. The pair of face-to-face engaging fastener members 1 include a base portion 2 and a plurality of headed protrusions 3 that are erected on the base portion 2 with a predetermined spacing. Each headed stem 3 is provided with a leg portion 5 that projects from the main surface 4 of the base portion 2 in a substantially upright state, and a head portion 6 that is connected to an end of the leg portion 5. When the two fastener members 1 are engaged with each other, the heads 6 of the headed stems 3 are opposed to each other and the base portions 2 are
Are arranged substantially in parallel (FIG. 9 (a)). In that state, when a predetermined pressure is applied to each base portion 2 in the mutually approaching direction, the head 6 of the headed stem 3 of one fastener member 1 has its top surface 7 at the headed protrusion of the other fastener member 1. Top surface 7 of head 6 of child 3
Slide along, and thus the legs 5 of both headed stems 3
While elastically bending, the other fastener member 1 enters between the adjacent leg portions 5 of the headed stem 3 of the other fastener member 1 (see FIG. 9).
(B)). In this state, the plurality of headed protrusions 3 of the one fastener member 1 have the locking surfaces 8 forming the bottom surface of the head 6.
At the head 6 of each headed stem 3 of the other fastener member 1.
Engages with the locking surface 8 of. In this way, the pair of facing engagement fastener members 1 are attached to each other. The two fastener members 1 attached to each other apply a predetermined pulling force to each base portion 2 in the separating direction to elastically bend the leg portions 5 of the headed protrusions 3 of the two fastener members 1 while retaining the locking surfaces. The head 6 is disengaged against the engagement between the eight and is removed.

Face-to-face engaging fastener members made of an integrally molded resin material are generally adhesives, pressure-sensitive double-sided adhesive tapes,
The base is fixed to the surface of the object by fixing means such as bolts and clips. Conventionally, in order to perform the fixing work to the object surface easily and quickly, an adhesive or pressure-sensitive double-sided adhesive tape is applied to the surface opposite to the main surface of the base (that is, the back surface) or ultrasonic welding is applied to the base. Step or high-frequency welding step to fix a separate resin clip, or press-fit or caulk a separate metal clip to the base to fix the fastening means to the face-to-face engaging fastener member in advance. Was there.

When an adhesive or pressure-sensitive double-sided pressure-sensitive adhesive tape is applied to the back surface of the base portion of the face-to-face engaging fastener member, it is necessary to apply a primer to the back surface of the base portion so that it is securely fixed to the base portion. When the primer is applied to a large number of face-to-face engaging fastener members, it is difficult to apply the primer repeatedly to have a uniform thickness, and as a result, there arises a problem that a uniform fixing function cannot be given to a large number of face-to-face engaging fastener members. Further, when fixing the face-to-face engaging fastener member on the surface of the object through the adhesive or the pressure-sensitive double-sided adhesive tape, it takes time to cure the adhesive or obtain the normal adhesive force of the pressure-sensitive double-sided adhesive tape. It is difficult to immediately use the face-to-face engaging fastener member.

When a separate resin clip is fixed to the base by an ultrasonic welding process or a high frequency welding process, the welding work requires skill and the result of the welding tends to vary. There is a problem that a uniform fixing function cannot be given to the composite fastener member. When a separate metal clip is fixed to the base by press fitting or caulking, the metal clip is generally fixed near the outer edge of the base where no headed stem is arranged. Therefore, when the facing engagement fastener member is fixed to the object surface by such a metal clip, only the outer edge portion of the base portion is locked to the object surface, and therefore, for example, when a pulling force is applied to the facing engagement fastener member. In addition, there is a problem that the central part of the base part is lifted up from the surface of the object and the sufficient fastener function cannot be exhibited.

As a means for solving these problems, there is known a fastener member provided with a fixing means integrally formed on a base portion. As shown in FIG. 10, this fastener member 1'includes a plurality of headed protrusions 3'standingly provided on a base portion 2 ',
Fixing means 9 connected to the surface of the base portion 2'opposite the main surface 4 ', for fixing the base portion 2'to the object surface. The fixing means 9 is integrally molded with the base 2'when molding the base 2'in the injection molding process of the fastener member 1 '. Thus, the fixing means 9 connected to the base portion 2'can easily and surely fix the base portion 2'to the surface of the object, and moreover, the injection member can impart a uniform fixing function to many fastener members 1 '. be able to.

[0008]

The above-mentioned fastener member 1'in which the fixing means is integrally molded and connected to the base is designed to separate the mold from the molded product in the injection molding process without destroying the mold and the molded product. As shown, the headed stem 3 '
The head 6'is shaped such that a part thereof is missing.
That is, the head portion 6'of the headed stem 3'is formed by a protrusion protruding laterally from a part of the end side surface of the leg portion 5 ', and the protrusion has a locking surface 8'. With such a head shape, the area of the locking surface 8'is inevitably small, and as a result, it becomes difficult to obtain a sufficient engagement holding force at the time of mutual engagement with another fastener member. Therefore, as shown in FIG. 9, the head 6 which is connected to the end of the leg 5 forms a locking surface 8 which extends outward from the surface over the entire circumference of the leg 5. In a conventional face-to-face engaging fastener member having the above, it is desired to take a similar solution regarding the fixing means. Further, in the conventional fastener member 1 ', in order to mold the headed stem 3', a plurality of molds divided along the arrangement of the headed stem are used in combination. Therefore, it is difficult to provide the headed stem group with an arrangement other than the illustrated lattice-like arrangement, and there is a problem that the distance between adjacent headed stems becomes large.

An object of the present invention is to provide a face-to-face engaging fastener member having a plurality of headed protrusions, by which the base portion can be easily and surely fixed to the surface of an object, and moreover, a uniform fixing function for a large number of face-to-face engaging fastener members. It is an object of the present invention to provide a face-to-face engaging fastener member in which a fixing means capable of imparting a force is provided without impairing the fastener function represented by the engagement holding force. Another object of the present invention is to provide a method for manufacturing such a surface-engaging fastener member.

[0010]

In order to achieve the above object, the present invention comprises a base having a main surface, a leg projecting from the main surface of the base, and a distal end of the leg over the entire circumference of the leg. Face-to-face engaging fastener members, each of which is provided with a head portion that is coupled while forming a locking surface extending outward from the surface, and a plurality of headed protrusions that are erected on the base portion in a predetermined spaced arrangement. In the above, there is provided a face-to-face engaging fastener member, which is integrally connected to the base portion when the base portion is molded, and has fixing means for fixing the base portion to the surface of the object.

In this face-to-face engaging fastener member, a base, a plurality of headed leg portions, and a plurality of headed protrusions are formed by an injection molding process using a destructively detachable leg mold. The head and the fixing means are preferably integrally connected. Further, the fixing means may include an extension portion integrally formed with the base portion, and the extension portion may be configured to engage with the surface of the object. Alternatively, the fixing means is provided with a holding member which is arranged as an insert in a mold for molding the base during molding of the base and is integrally connected to the base, and the holding member is configured to engage with the surface of the object. Good. In this case, it is convenient that the base portion and the headed stem are made of a conductive polymer material and the holding member is made of a metal material, since a grounding function to the object surface can be imparted.

Further, according to the present invention, a plurality of headed protrusions each provided with a base portion, a leg portion protruding from the base portion, and a head portion connected to an end of the leg portion are erected on the base portion in a predetermined spaced arrangement. A method for manufacturing a face-to-face fastener member comprising a child, comprising: a) a permanent base mold having a space for integrally molding a base and a fixing means for fixing the base to the surface of an object;
Destructively detachable leg mold with multiple spaces for molding the headed stem leg and permanent with multiple spaces for molding the headed stem head. And a b) a space for integrally molding the base and the fixing means and a plurality of spaces for molding the legs are connected so that fluid can flow, The leg mold is fixed adjacent to the base mold, and a plurality of spaces for molding the legs and a plurality of spaces for molding the head are connected so that fluid can flow. Meanwhile, the head mold is fixed adjacent to the leg mold, and c) a molten polymer material is passed through an introduction passage provided in any one of the head mold, the leg mold, and the base mold. To
It is poured into each space of the head mold, the leg mold and the base mold, and d) In the head mold, the leg mold and the base mold, as an extension part from the polymer material to the base part. Molding a face-to-face engaging fastener member having integrally formed fixing means, e) removing the base mold and the head mold from the leg mold and the formed face-to-face engaging fastener member, and f) molding And a step of destructively detaching the leg mold from the face-to-face engaging fastener member.

In the above method, step f) may include the step of dissolving and removing the destructively detachable leg mold with a solvent. In this case, the solvent may consist of water.

According to another aspect of the present invention, each of which is provided with a base portion, a leg portion protruding from the base portion, and a head portion connected to an end of the leg portion, is erected on the base portion in a predetermined spaced arrangement. A face-to-face engaging fastener member having a plurality of headed protrusions, comprising: a) a permanent base mold having a space for integrally molding a base and a fixing means for fixing the base to the surface of an object. When,
Destructively detachable leg mold with multiple spaces for molding the headed stem leg and permanent with multiple spaces for molding the headed stem head. And a b) a space for integrally molding the base and the fixing means and a plurality of spaces for molding the legs are connected so that fluid can flow, The leg mold is fixed adjacent to the base mold, and a plurality of spaces for molding the legs and a plurality of spaces for molding the head are connected so that fluid can flow. Meanwhile, the head mold is fixed adjacent to the leg mold, and c) a molten polymer material is passed through an introduction passage provided in any one of the head mold, the leg mold, and the base mold. To
It is poured into each space of the head mold, the leg mold and the base mold, and d) In the head mold, the leg mold and the base mold, as an extension part from the polymer material to the base part. Molding a face-to-face engaging fastener member having integrally formed fixing means, e) removing the base mold and the head mold from the leg mold and the formed face-to-face engaging fastener member, and f) molding There is provided a face-to-face fastener member manufactured by a method including the steps of destructively detaching the leg mold from the face-to-face fastener member.

Further, according to the present invention, a plurality of headed protrusions each provided with a base portion, a leg portion protruding from the base portion and a head portion connected to an end of the leg portion are erected on the base portion in a predetermined spaced arrangement. A method of manufacturing a face-to-face engaging fastener member including a child, comprising: a) a permanent base mold having a space for molding a base and a plurality of molds for molding a leg of a headed stem. A destructively detachable leg mold having a space of 1 and a permanent head mold having a plurality of spaces for molding the head of a headed stem, b) Fixing means for fixing the base to the surface of the object is arranged at a predetermined position of the space for molding the base of the base mold, and c) a space for molding the base and a plurality of molds for molding the legs. While connecting to the space of so that the fluid can flow,
A destructively detachable leg mold is fixed adjacent to the permanent base mold, and a plurality of spaces for molding the legs and a plurality of spaces for molding the head are provided. A permanent head mold is fixed adjacent to the destructively detachable leg mold while connecting so as to allow fluid flow, and d) a head mold, a leg mold, and Through the introduction passage provided in any one of the base molds, the molten polymer material,
It is poured into each space of the head mold, the leg mold and the base mold, and e) In the head mold, the leg mold and the base mold, the fixing means is made of a polymer material and fixed. Forming a face-to-face fastener member connected at a predetermined position, f) removing the base mold and the head mold from the leg mold and the formed face-to-face fastener member, and g) the formed face-to-face member. Disclosed is a method including destructively detaching a leg mold from a combined fastener member.

According to still another aspect of the present invention, each of which is provided with a base portion, a leg portion protruding from the base portion, and a head portion connected to an end of the leg portion, is erected on the base portion in a predetermined spaced arrangement. A face-to-face engaging fastener member comprising a plurality of headed stems, comprising: a) a permanent base mold having a space for molding the base and a leg of the headed stem. A destructible detachable leg mold with multiple spaces and a permanent head mold with multiple spaces for molding the head of the headed stem. A) a fixing means for fixing the base to the surface of the object is arranged at a predetermined position of a space for molding the base of the base mold, and c) a space for molding the base and a leg are molded. While connecting with multiple spaces for the fluid flow
A destructively detachable leg mold is fixed adjacent to the permanent base mold, and a plurality of spaces for molding the legs and a plurality of spaces for molding the head are provided. A permanent head mold is fixed adjacent to the destructively detachable leg mold while connecting so as to allow fluid flow, and d) a head mold, a leg mold, and Through the introduction passage provided in any one of the base molds, the molten polymer material,
It is poured into each space of the head mold, the leg mold and the base mold, and e) In the head mold, the leg mold and the base mold, the fixing means is made of a polymer material and fixed. Forming a face-to-face fastener member connected at a predetermined position, f) removing the base mold and the head mold from the leg mold and the formed face-to-face fastener member, and g) the formed face-to-face member. A face-to-face engaging fastener member is provided which is manufactured by a method including steps for destructively detaching a leg mold from the compound fastener member.

[0017]

Since the fixing means is integrally connected to the base during molding of the base engaging fastener member in the molding process of the front engaging fastener member, it can be formed in a large number of face engaging fastener members with good reproducibility. it can. As a result, a large number of face-to-face engaging fastener members have an even fixing function. Also,
Since the fixing means can be arranged at a desired position of the base by integrally forming the base, the base can be securely fixed to the surface of the object.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in more detail with reference to the preferred embodiments shown in the accompanying drawings. In each drawing, the same or similar components are given common reference numerals. Referring to the drawings, FIG. 1 illustrates a face-to-face fastener member 10 according to a first embodiment of the present invention. The face-to-face engaging fastener member 10 includes a substantially flat disk-shaped base portion 12 and a plurality of headed protrusions 14 that are erected on the base portion 12 with a predetermined spacing. Each headed stem 14 is a hemispherical head formed with a leg 16 protruding from the base 12 in a substantially upright state, and a contour bulging from the outer surface of the leg 16 at the end of the leg 16. And a section 18. The leg 16 has a proximal end 22 connected to the major surface 20 of the base 12 and a distal end 24 connected to the head 18. Also, the head 18 is attached to the distal end 24 of the leg 16 at the leg 1
6 are connected while forming a locking surface 25 extending outward from the surface of the entire circumference of 6.

The face-to-face engaging fastener member 10 includes a base portion 12.
As a fixing means for fixing the to the front surface of the object, an extension portion 28 connected to substantially the center of the back surface 26 of the base portion 12 is provided. The extension portion 28 is integrally formed with the base portion 12 in a mold for molding the base portion 12 in the step of forming the facing engagement fastener member 10. The extension portion 28 has a back surface 26 of the base portion 12.
And a pair of locking portions 3 arranged at opposite positions of the side surfaces of the substantially cylindrical portion 30.
2 and. The locking portion 32 is connected at its lower end 32a to the vicinity of the lower end of the substantially cylindrical portion 30. Therefore, the upper end 32b of the locking portion 32 is a free end, and can be swung about the lower end 32a as a fulcrum due to the elasticity of the material.

When fixing the face-to-face engaging fastener member 10 to the surface of an object, it is locked in a hole H (see FIGS. 1 (b) and 1 (c)) formed in the object to receive the extension 28. The extension portion 28 is inserted while elastically swinging the portion 32 toward the center of the substantially columnar portion 30. When the back surface 26 of the base portion 12 of the face-to-face engaging fastener member 10 contacts the object surface, the locking portion 32 elastically restores to the state shown in FIG. 1B, and the upper surface of the locking portion 32 has a hole H. Is locked to the edge of. Although such a structure of the extension portion 28 is a well-known structure as a fixing means, the present invention is characterized in that the extension portion 28 is integrally formed with the base portion 12 in the mold when the base portion 12 is molded.
Therefore, the extension portion 28 is firmly connected to the base portion 12,
In addition, since the reproducibility is excellent, a large number of face-to-face engaging fastener members are provided with a uniform fixing function. As a method of integrally forming, as will be described later, a method of injection-molding the base portion 12 and the extension portion 28 from the same polymer material, or a pre-molding from a polymer material having a higher melting point than the material of the base portion 12 A method of molding the base portion 12 by arranging the extended portion 28 as an insert in a mold can be adopted.

FIG. 2 shows a face-to-face fastener member 10 'according to a second embodiment of the present invention. The face-to-face engaging fastener member 10 ′ includes a base 12 and a headed stem 14 that are substantially the same as the face-to-face engaging fastener member 10 of FIG. 1. Further, the face-to-face engaging fastener member 10 'is used as a fixing means for the base 12
An extension portion 34 connected to substantially the center of the back surface 26 of the.
The extension 34 is integrally formed with the base 12 in the mold when the base 12 is molded. The extension portion 34 includes a substantially cylindrical portion 36 extending from the back surface of the base portion 12 in a substantially upright state, and a ring-plate-shaped locking portion 38 extending radially outward from the lower end of the substantially columnar portion 36. Prepare Face-to-face engaging fastener member 10 '
Is an extension 3 in a T-shaped groove (not shown) provided on the surface of the object.
The locking portion 38 of No. 4 is slidably inserted to be fixed to the object surface.

FIG. 3 shows a face-to-face engaging fastener member 40 according to a third embodiment of the present invention. The face-to-face engaging fastener member 40 includes a substantially flat rectangular plate-shaped base portion 42, and a plurality of headed protrusions 44 that are erected on the base portion 42 in a predetermined spaced arrangement. Each headed stem 44 has a leg portion 48 protruding substantially upright from the main surface 46 of the base portion 42, and a leg portion 48 at the end of the leg portion 48.
And a hemispherical head portion 50 having a contour that bulges from the outer surface of the. Face-to-face engaging fastener member 4
The fixing member 0 has an extension portion 54 extending downward from the back surface 52 of the base portion 42 along one edge thereof as a fixing means. The extension part 54 is integrally molded from the same polymer material as the base part 42 in a mold for molding the base part 42 in the process of molding the facing engagement fastener member 40. The extension 54 is
A wall portion 56 that is substantially orthogonal to the back surface 52 of the base portion 42, and a locking portion 58 that extends from the lower end of the wall portion 56 toward the back surface 52 and extends substantially in parallel are provided.

The face-to-face engaging fastener member 40 is fixed to the surface of the object by inserting the edge portion of the object into the space between the back surface 52 of the base portion 42 and the locking portion 58 of the extension portion 54. At this time, the free end 60 of the locking portion 58 is pushed downward by the object edge portion, so that the object edge portion is pinched between the base portion 42 and the locking portion 58 by the elastic restoring force of the locking portion 58. become.

FIG. 4 illustrates a face-to-face fastener member 40 'according to a fourth embodiment of the present invention. The face-to-face engaging fastener member 40 ′ includes a base portion 42 and a headed protrusion 44 that are substantially the same as the face-to-face engaging fastener member 40 of FIG. 3. Further, the face-to-face engaging fastener member 40 'is provided with a base portion 42 as a fixing means.
A pair of extension portions 62 extending downward from the back surface 52 along one edge thereof. The extension portion 62 is integrally molded from the same polymeric material as the base portion 42 in a mold for molding the base portion 42 in the molding process of the facing engagement fastener member 40 '. Each extension portion 62 includes a wall portion 64 that is substantially orthogonal to the back surface 52 of the base portion 42, and a lower end of the wall portion 64 and the back surface 5.
2 and a locking portion 66 that is extended while approaching 2. The face-to-face engaging fastener member 40 ′ is similar to the face-to-face engaging fastener member 40 in that the edge portion of the object is inserted into the space between the back surface 52 of the base portion 42 and the locking portion 66 of the extension portion 62, thereby It is fixed on the surface. Face-to-face engaging fastener member 4
0'can be more firmly fixed to the edge portion of the object which is thinner than the facing engagement fastener member 40. Base 42
A claw 68 for assisting the fixing function is formed on the other edge portion.

FIG. 5 illustrates a face-to-face engaging fastener member 70 according to a fifth embodiment of the present invention. The face-to-face engaging fastener member 70 includes a substantially flat plate-shaped base portion 72 and a plurality of headed protrusions 74 that are erected on the base portion 72 at predetermined intervals.
Each headed stem 74 includes a leg portion 78 that protrudes from the main surface 76 of the base portion 72 in a substantially upright state, and a hemispherical head portion 80 that is connected to an end of the leg portion 78. The face-to-face engaging fastener member 70 further includes a holding member 82 connected to the base 72 as a fixing means for fixing the base 72 to the surface of the object.
As shown in FIG. 6, the holding member 82 includes a support portion 84 embedded in the base 72, a wall portion 86 extending downward from one edge portion of the support portion 84, and a lower end of the wall portion 86 to the support portion 84. And a locking portion 88 extending in parallel. The holding member 82 is preferably press-molded from sheet metal, and the support portion 84 has a plurality of holes 90, and the locking portion 88 has locking pawls 92. The holding member 82 is disposed as an insert in a mold for molding the base 72 in the molding process of the facing engagement fastener member 70, and is integrally connected to the base 72 by molding the base 72 from a polymer material. It At this time, the polymeric material enters into the plurality of holes 90 provided in the support portion 84, whereby the holding member 82 is firmly fixed to the base portion 72.

The face-to-face engaging fastener member 70 has an edge portion of the object, a back surface 94 of the base portion 72 and a locking portion 88 of the holding member 82.
It is fixed to the object surface by inserting it in the space between and. At this time, since the locking claw 92 of the locking portion 88 is pushed downward by the object edge, the object edge is sandwiched between the base 72 and the locking portion 88 by the elastic restoring force of the locking claw 92, Thus, the facing engagement fastener member 70 is fixed.

The face-to-face fastener member according to the present invention is
It can have any size and shape. For example, in the face-to-face engaging fastener member 10, the base portion 12 can be formed in various sizes and shapes capable of fixedly holding a plurality of headed protrusions 14 in addition to the circular shape shown. Base 1
The thickness of 2 is preferably in the range of 0.5 to 5.0 mm. The extension 28 can have any size and shape that acts as a securing means. Further, the extension portion 28 can be formed at a desired position of the base portion 12, and a plurality of extension portions 28 may be formed for one base portion 12. Thereby, the facing engagement fastener member 10 can be more reliably fixed to the object surface.

The leg portion 16 of the headed stem 14 includes a cylinder, a prism,
It can have various shapes such as a truncated cone, and a plurality of heads 18 can be provided. In addition, the base end 2
In the connecting region between the leg portion 16 and the main surface 20 of the base portion 12 in FIG. 2, a corner portion having a predetermined curvature for suppressing stress concentration when the headed stem 14 is bent may be provided. Head 18
Can have various shapes such as a spherical shape, a cone shape, and a cap shape, in addition to the illustrated hemispherical shape. For example, the cylindrical leg portion 16
In the headed stem 14 having a hemispherical head 18 and a hemispherical head 18, the diameter of the leg 16 is 20 to 20 times the diameter of the head 18 in order to obtain sufficient engagement holding force with the fastener member of the engagement partner. 70
It is preferably in the range of%. Further, it is desirable that the outer peripheral edge of the head portion 18 be formed by eliminating the acute angle portion in order to reduce the rubbing noise during mutual engagement with the head portion of the headed protrusion of the mating partner. Furthermore, in order to reduce the pressure-bonding force required for engagement, the head 18 may be provided with a recess or a notch.

The face-to-face engaging fastener member according to the present invention is
It can be formed from a variety of materials. For example, in the face-to-face engaging fastener member 40, the base portion 42 and the extension portion 54
Is formed of a polymer material such as polyamide resin, polyester resin, polypropylene resin, polyethylene resin, or polyacetal resin. In particular, polyamide resin is a preferable material because it is excellent in heat resistance, mechanical strength, and injection molding characteristics. The headed stem 44 can be formed from the same polymeric material as the base 42. Alternatively, the headed stem 44
The legs 48 may be formed of a high strength material different from the base 42 and head 50 for increased durability. Further, the base portion 42, the headed stem 44, and the extension portion 54 are
The flexural modulus measured by the TM test method D790 is 1
It is preferably formed from a material in the range of 000 to 100,000 kgf / cm ² . Furthermore, as is well known, by adding a plasticizer or rubber to a polymer material or adding carbon fiber or glass fiber as a reinforcing material,
2, the elastic modulus of the headed stem 44 and the extension portion 54 can be appropriately modified or altered.

In the face-to-face engaging fastener member 70, it is preferable that the base portion 72 and the headed stem 74 are made of a conductive polymer material, and the holding member 82 is made of a metal material. As a result, when the facing engagement fastener member 70 is fixed to the surface of the metallic object, the facing engagement fastener member 70 functions as a ground contact member for the object.
This configuration, for example, when laying a conductive carpet woven with carbon fibers for the purpose of removing static electricity on the floor surface of an automobile,
It is particularly effective because it has both the function of fixing the carpet and the function of grounding. Even when the surface of the object made of metal is coated, the locking claw 92 provided on the locking portion 88 of the holding member 82 penetrates the coating, so that the grounding effect can be easily obtained.

The face-to-face engaging fastener member according to the present invention is
It can be formed by various methods. In order to easily form a headed stem group having a special shape, the base and the headed stem are integrally formed by an injection molding process using a destructively detachable leg mold. The method is advantageous. This method will be described below with reference to FIGS. 7 and 8.

FIG. 7 schematically shows, as an example, a manufacturing process of the facing engaging fastener member 10 '. As shown in FIG. 7A, in order to mold the base mold 100 for molding the base 12 and the extension 34 of the face-to-face engaging fastener member 10 ′, and the leg 16 of the headed stem 14. The leg mold 102 of
Head mold 1 for molding the head 18 of the headed stem 14
04 and prepare. The base mold 100 is a permanent mold that can be detached from the molded face-to-face engaging fastener member 10 ′ without breaking, and includes a mold space 106 corresponding to the base 12 and the extension 34. The leg mold 102 is
It is a mold that is destructively detached from the molded face-to-face engaging fastener member 10 ′ as described later, and has a plurality of mold spaces 108 corresponding to the leg portions 16. Head mold 1
Reference numeral 04 denotes a permanent mold that is detached from the molded face-to-face engaging fastener member 10 ′ without breaking it.
A mold space 110 corresponding to 8 is provided. Each mold space 10
6, 108 and 110 may have various contours corresponding to desired shapes of the base 12, the extension 34, the legs 16 and the head 18 as described above.

The leg mold 102 has sufficient durability to function as a core in the injection molding process for molding the face-to-face engaging fastener member 10 ', and at the same time, forms the face-to-face engaging fastener member 10'. Later, it can be destructively detached from the face-to-face engaging fastener member 10 'by various means. For example, the leg mold 102 may damage the face-to-face engaging fastener member 10 'by various mechanical or chemical means such as dissolution, melting, destruction by a solvent such as water or alcohol, crushing by ultrasonic waves, cutting, etc. It is detached from the periphery of the leg 16 without adding. In the preferred embodiment, the leg mold 102 is formed from a water soluble material. In this case, the leg mold 102 is soaked in water or warm water and vibrated to make the face-engaging fastener member 10 '.
Removed from. Water-soluble materials applicable to the present invention include, for example, European Patent Application No. 314,156, US Pat.
990,146 and U.S. Pat. No. 4,870,148. The leg mold 102 can be molded into a desired shape by a known injection molding process.

As shown in FIG. 7A, the leg mold 10
2 is fixedly arranged between the base die 100 and the head die 104. At this time, the mold space 106 of the base mold 100, the plurality of mold spaces 108 of the leg mold 102, and the plurality of mold spaces 110 of the head mold 104 are mutually connected so that fluid can flow. Link. In this state, for example, the molten polymer material is poured into the mold space 106 through the introduction passage 112 provided in the base die 100. In addition,
The introduction path for injecting the molten material may be provided in the leg mold 102 or the head mold 104 so as to communicate with the mold space 108 or the mold space 110.

The molten material injected into the mold space 106 of the base die 100 fills the mold space 106 and the base 12 is filled.
And extending portions 34, and then filling the plurality of mold spaces 108 of the leg mold 102 to form the plurality of legs 16 and further filling the plurality of mold spaces 110 of the head mold 104. A plurality of heads 18 are formed. After that, the molten polymer material is solidified so that the base portion 12 serves as a fixing means.
The face-to-face engaging fastener member 10 ′ including the extension portion 34 integrally molded with is integrally molded.

When the molding of the face-to-face engaging fastener member 10 'is completed, the leg mold 102 is left and the base mold 10 is left.
0 and the head mold 104, the facing engagement fastener member 1
It is removed from 0 '(see FIG. 7 (b)). Further, the leg mold 102 is destructively detached from the periphery of the leg 16 of the headed protrusion 14 of the face-to-face engaging fastener member 10 'by the various methods described above. In this way, the facing engagement fastener member 10 'shown in FIG. 2 is completed.

FIG. 8 is a view for explaining another manufacturing method according to the present invention. As an example, the facing engagement fastener member 70 of FIG.
Will be shown. First, similar to the method of FIG. 7, a base mold 120 for molding the base 72 of the facing engagement fastener member 70 and a leg mold 122 for molding the leg 78 of the headed stem 74. And a head mold 124 for molding the head 80 of the headed stem 74. Base mold 1
Reference numeral 20 denotes a permanent mold that is detached from the molded face-to-face engaging fastener member 70 without breaking the base member 72.
Corresponding to the mold space 126. Mold 122 for legs
Is a mold that is destructively detached from the molded face-to-face engaging fastener member 70 as described above, and includes a plurality of mold spaces 128 corresponding to the legs 78. Mold for head 124
Is a permanent mold that is detached from the molded face-to-face engaging fastener member 70 without breaking and includes a mold space 130 corresponding to the head 80. Furthermore, the base mold 12
0 is a cavity 1 for arranging and supporting the holding member 82.
32 is provided.

Prior to the molding of the face-to-face engaging fastener member 70, the holding member 82 is placed in the cavity 132 of the base die 120, and the support portion 84 of the holding member 82 is inserted into the mold space 126 at a predetermined position. Next, the mold space 126 of the base mold 120 and the plurality of mold spaces 12 of the leg mold 122.
8 and a plurality of mold spaces 130 of the head mold 124 are connected to each other so that a fluid can flow, and the leg mold 1
22 is fixedly arranged between the base die 120 and the head die 124. In this state, for example, the base die 120
The molten polymer material is poured into the mold space 126 through the introduction path 134 provided in the. Then, the molten polymer material is solidified, so that the base mold 120 and the leg mold 1 are formed.
22 and the head mold 124, the facing engagement fastener member 7 in which the holding member 82 is connected to a predetermined position of the base 72.
0 is integrally molded. When the molding of the facing engagement fastener member 70 is completed, the base mold 120 and the head mold 124 are removed from the facing engagement fastener member 70, leaving the leg mold 122, and the leg mold 122 is further removed. Destructively detach. In this way, the facing engagement fastener member 70 shown in FIG. 5 is completed.

[0039]

As is apparent from the above description, the present invention has a head portion which is connected to the distal end of the leg portion while forming a locking surface extending outward from the surface over the entire circumference of the leg portion. In a face-to-face engaging fastener member having a plurality of headed protrusions, the fixing means for fixing the base portion to the object surface is configured to be integrally connected to the base portion when molding the base portion. It is accurately and firmly connected to a desired position, and a large number of face-to-face fastener members are provided with an even fixing function with good reproducibility. Therefore, according to the present invention, a face-to-face engaging fastener member that can be easily and quickly fixed to a desired object surface without using a separate fixing member does not impair the fastener function typified by engagement holding force. Manufactured with high reliability.

[Brief description of drawings]

FIG. 1 is a view of a face-to-face engaging fastener member according to a first embodiment of the present invention, (a) is a plan view, (b) is a side view as seen from an arrow b, and is a cross-sectional view of an adherend; ) It is a figure which shows a to-be-adhered body in a cross section with the side view seen from the arrow c.

FIG. 2 is a view of a face-to-face engaging fastener member according to a second embodiment of the present invention, (a) a side view and (b) a plan view seen from an arrow b.

3A and 3B are views of a facing engaging fastener member according to a third embodiment of the present invention, in which FIG. 3A is a plan view, FIG. 3B is a side view seen from an arrow b, and FIG. 3C is a side view seen from an arrow c; Is.

FIG. 4 is a view of a face-to-face engaging fastener member according to a fourth embodiment of the present invention, in which (a) a plan view, (b) a side view seen from an arrow b, and (c) a side view seen from an arrow c, Is.

FIG. 5 is a vertical sectional view of a face-to-face engaging fastener member according to a fifth embodiment of the present invention.

6 is a perspective view of a holding member used in the facing engagement fastener member of FIG. 5. FIG.

7A and 7B are views showing a manufacturing process of the face-to-face engaging fastener member of FIG. 2, wherein FIG. 7A is a cross-sectional view of a mold, and FIG. ,.

8 is a cross-sectional view showing the manufacturing process of the facing engagement fastener member of FIG. 5 together with the mold.

FIG. 9 is a view of a conventional fastener including a pair of face-to-face engaging fastener members, (a) a schematic side view before interlocking, and (b) a schematic side view after interlocking.

FIG. 10 is a view of a conventional fastener member provided with a fixing means, (a) a plan view and (b) a side view.

[Explanation of symbols]

10, 10 ', 40, 40', 70 ... Face-to-face engaging fastener member 12, 42, 72 ... Base portion 14, 44, 74 ... Headed stem 16, 48, 78 ... Leg portion 18, 50, 80 ... Head portion 20, 46, 76 ... Main surface 22 ... Proximal end 24 ... End 25 ... Locking surface 26, 52, 94 ... Back surface 28, 34, 54, 62 ... Extension part 32, 38, 58, 66, 88 ... Locking part 82 ... Holding member 100, 120 ... Base mold 102, 122 ... Leg mold 104, 124 ... Head mold 106, 108, 110, 126, 128, 130 ... Mold space

Front page continuation (72) Inventor Norihito Shibahara 3-8-8 Minamihashimoto, Sagamihara City, Kanagawa Sumitomo 3M Limited (72) Inventor Shusei Sawajiri 3-8-8 Minamihashimoto, Sagamihara City, Kanagawa Sumitomo 3M Limited Within

Claims (13)

[Claims] 1. A base having a major surface, a leg projecting from the major surface of the base, and a distal end of the leg having a locking surface extending outwardly from a surface over the entire circumference of the leg. In a face-to-face engaging fastener member having heads to be connected together while being provided with a plurality of headed protrusions standing upright on the base at a predetermined distance, the face-to-face engaging fastener member is integrated with the base during molding of the base. Face-to-face fastener member, which is fixedly connected to the object and has a fixing means for fixing the base portion to the surface of the object. 2. The base, the legs of the plurality of headed stems, and the head of the headed stem by an injection molding process using a destructively detachable leg mold. The facing engagement fastener member according to claim 1, wherein the fixing means and the fixing means are integrally connected. 3. The face-to-face engaging fastener member according to claim 1, wherein the fixing means includes an extension portion integrally formed with the base portion, and the extension portion engages with a surface of an object. 4. The fixing means comprises a holding member which is arranged as an insert in a mold for molding the base when the base is molded, and is thus integrally connected to the base, the holding member being an object. The face-to-face engaging fastener member according to claim 1 or 2, which engages with a surface of the fastener. 5. The face-to-face engaging fastener member according to claim 4, wherein the base portion and the plurality of headed protrusions are made of a conductive polymer material, and the holding member is made of a metal material. 6. A plurality of headed protrusions, each provided with a base, a leg protruding from the base, and a head connected to an end of the leg, and standing upright on the base at a predetermined distance. A method for manufacturing a face-to-face engaging fastener member including a child, comprising the following steps. a) A permanent base mold having a space for integrally molding the base and a fixing means for fixing the base to the surface of an object, and a plurality of molds for molding the legs of the headed stem. Destructively detachable leg mold with a space of, and prepare a permanent head mold with a plurality of spaces for molding the head of the headed stem, b) Adjacent to the base mold while connecting a space for integrally molding the base and the fixing means and a plurality of spaces for molding the legs so that fluid can flow therethrough. The leg mold is fixed, and the plurality of spaces for molding the leg part and the plurality of spaces for molding the head part are connected to each other so that fluid can flow, and the leg is formed. Fixing the head mold adjacent to the head mold, c) the head mold, the leg mold and the base A molten polymer material into the space of each of the head mold, the leg mold and the base mold through an introduction passage provided in any one of the molds for a head, and d) the head. A mold for parts, a mold for legs, and a mold for bases, from the polymeric material, the face-to-face engaging fastener member having a fixing means integrally formed as an extension on the base, e) Removing the base mold and the head mold from the leg mold and the molded facing engagement fastener member, and f) destroying the leg mold from the molded facing engagement fastener member. Desorption. 7. The method of claim 6, wherein step f) includes dissolving and removing the destructively detachable leg mold with a solvent. 8. The method of claim 7, wherein the solvent comprises water. 9. A plurality of headed protrusions, each provided with a base, a leg protruding from the base, and a head connected to an end of the leg, standing upright on the base with a predetermined spacing. A face-to-face engaging fastener member including a child, comprising: a) a permanent base mold having a space for integrally molding the base and a fixing means for fixing the base to the surface of an object; A destructively detachable leg mold having a plurality of spaces for molding the leg of the headed stem, and a plurality of spaces for molding the head of the headed stem. A permanent head mold provided with it is prepared, and b) fluid can flow through a space for integrally molding the base and the fixing means and a plurality of spaces for molding the legs. While connecting as described above, the leg mold is fixed adjacent to the base mold, and the leg is molded. Fixing the head mold adjacent to the leg mold, while connecting the plurality of spaces and the plurality of spaces for molding the head so that fluid can flow therethrough, c). A molten polymer material is passed through an introduction passage provided in any one of the head mold, the leg mold, and the base mold to melt the molten polymer material into the head mold, the leg mold, and the base part. Pouring into the space of each of the molds, d) fixing means integrally molded from the polymeric material to the base as an extension in the head mold, the leg mold and the base mold. Molding the face-to-face engaging fastener member having e), e) removing the base mold and the head mold from the leg mold and the formed face-to-face engaging fastener member, and f) molded Destruction of the leg mold from the face-to-face engaging fastener member Desorbed, fastener member, characterized in that it is manufactured by a method having the steps. 10. A plurality of headed protrusions each provided with a base, a leg protruding from the base, and a head connected to an end of the leg, and standing upright on the base with a predetermined spacing. A method for manufacturing a face-to-face engaging fastener member including a child, comprising the following steps. a) A permanent base mold having a space for molding the base, and a destructively detachable leg having a plurality of spaces for molding the legs of the headed stem. Mold for
A permanent head mold having a plurality of spaces for molding the head of the headed stem is provided, and b) a predetermined position of a space for molding the base of the base mold. A fixing means for fixing the base portion to the surface of an object, and c) a space for forming the base portion and a plurality of spaces for forming the leg portions so that fluid can flow therethrough. While fixing to the permanent base mold is fixed adjacent to the destructible detachable leg mold, and a plurality of spaces for molding the legs and the head. Fixing the permanent head mold adjacent to the destructively detachable leg mold while connecting to a plurality of spaces for molding so that a fluid can flow therethrough; d ) Melting is performed through an introduction passage provided in any one of the head mold, the leg mold and the base mold. The polymer material is poured into the space of each of the head mold, the leg mold, and the base mold, and e) the head mold, the leg mold, and the base mold. Wherein the polymer material is molded into the face-to-face engaging fastener member in which the fixing means is connected to a predetermined position of the base, and f) the leg mold and the formed face-to-face engaging fastener member, The base mold and the head mold are removed, and g) the leg mold is destructively detached from the molded face-to-face engaging fastener member. 11. The method of claim 10 wherein step g) includes dissolving and removing the destructively detachable leg mold with a solvent. 12. The method of claim 11, wherein the solvent comprises water. 13. A plurality of headed protrusions, each provided with a base portion, a leg portion protruding from the base portion, and a head portion connected to an end of the leg portion, which are erected on the base portion in a predetermined spaced arrangement. A face-to-face fastener member having a child, comprising: a) a permanent base mold having a space for molding the base; and a plurality of molds for molding the legs of the headed stem. Destructively detachable leg mold with space for
A permanent head mold having a plurality of spaces for molding the head of the headed stem is provided, and b) a predetermined position of a space for molding the base of the base mold. A fixing means for fixing the base portion to the surface of an object, and c) a space for forming the base portion and a plurality of spaces for forming the leg portions so that fluid can flow therethrough. While fixing to the permanent base mold is fixed adjacent to the destructible detachable leg mold, and a plurality of spaces for molding the legs and the head. Fixing the permanent head mold adjacent to the destructively detachable leg mold while connecting to a plurality of spaces for molding so that a fluid can flow therethrough; d ) Melting is performed through an introduction passage provided in any one of the head mold, the leg mold and the base mold. The polymer material is poured into the space of each of the head mold, the leg mold, and the base mold, and e) the head mold, the leg mold, and the base mold. Wherein the polymer material is molded into the face-to-face engaging fastener member in which the fixing means is connected to a predetermined position of the base, and f) the leg mold and the formed face-to-face engaging fastener member, Manufactured by a method including steps of removing the base mold and the head mold, and g) destructively detaching the leg mold from the molded face-to-face engaging fastener member. Face-to-face engaging fastener member characterized by: