JPH09224720A - Fastener member for forming insert and method for connecting such member to forming body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a member that can be firmly fastened at a prescribed position of a forming body, in a state where a warp or bend is corrected for the base part at the time of its arrangement inside a mold. SOLUTION: A fastener member 10 is provided with a nearly flat belt-shaped base part 16, plural engaging elements 18 erected on a main face 12 of the base 16, and connecting elements 20 projectingly provided on a rear face 14 of the base 16. The base 16 is provided with a pair of first edges 22 extending in the longitudinal direction and a pair of second edges 24 extending shorter than the first edge 22 in the transverse direction. The pair of first edges 22 of the base 16 is formed with an extension 26, whose thickness is less than that of the base 16, along nearly the entire length of the first edge 22 at both ends in the transverse direction. With the fastener member 10 arranged as an insert inside the supporting recessed part of the mold, both thin extensions 26 are brought into contact with the side wall of the recessed part and bent elastically, so that the base 16 is pressed toward the depth of the supporting recessed part. Thus, the warp is corrected with the base 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a face-to-face engaging type fastener member having a base portion having a main surface and a back surface opposite to the main surface, and a plurality of engaging elements provided on the main surface of the base portion. In particular, a connecting element provided on the back surface of the base portion is further provided, and in the insert molding process, the engaging element is fixed to the forming body with the engaging element exposed on the surface of the forming body through the connecting element embedded in the forming body. The present invention relates to an insert-molding fastener member to be connected. The invention further relates to a method of fixedly connecting such an insert molding fastener member to a molding body.

[0002]

2. Description of the Related Art Vehicle seats, office or home chairs,
2. Description of the Related Art There are known various fittings and furniture such as mattresses and furniture in which a cover member made of cloth, leather or the like is attached to the surface of a cushion member made of a molded product of a foamable resin material. In this type of equipment and furniture, it is necessary to firmly fix the cover member to the cushion member so that the cover member does not loosen or shift during use.

Conventionally, for example, in a car seat,
In order to fix the cover member to the cushion member, an annular metal fitting called a hog ring or a face-to-face engaging type fastener member (so-called surface fastener) in which a plurality of engaging elements are arranged on the main surface of a flat base is used. It was Hog ring
Each of them has an advantage of excellent fixing strength, but in order to substantially adhere the entire cover member to the cushion member and improve the appearance, a large number of hog rings must be used, and the fixing work is difficult. There was a problem that it was extremely complicated and required skill.

On the other hand, when a face-to-face engaging type fastener member is used, the fastener member is fixedly installed at a predetermined position on the surface of the cushion member and can be engaged with the engaging element group of the fastener member. The cover member can be relatively easily fixed to the cushion member by forming the coupling element on the back surface of the cover member, covering the cushion member with the cover member, and then pressing the two engagement elements against each other to engage them. . In this case, by devising the shape and arrangement of the fastener members and the shape and arrangement of the engaging elements, sufficient fixing strength and adhesion can be obtained.

Some fastener members used for such purposes are integrally molded from a resin material, and those having a large number of resin monofilaments planted on a fabric or resin base. In either case, for the purpose of firmly fixing the base portion to the cushion member, a connection element that can be embedded in the cushion member and is generally provided on the back surface of the base portion. Then, this fastener member is arranged as an insert in a mold for the cushion member to mold the cushion member, so that the engaging element is fixed to the cushion member via the connecting element in a state where the engaging element is exposed on the surface of the cushion member. Can be connected to.

[0006]

The fastener member having the above-described structure is as small as possible within the range in which the fixing strength and the adhesion of the cover member are not deteriorated so as not to impair the feel and appearance of equipment such as seats. Is desired. Particularly in automobile seats, the load by the occupant frequently moves on the seat, so sufficient adhesion strength is required, and it is desirable to provide a high level of comfort that eliminates the feeling of foreign matter to reduce fatigue. Therefore, a fastener member having an elongated strip shape that can be arranged along the groove portion provided on the surface of the cushion member or the seam of the cover member is effectively used.

On the other hand, generally, in a face-to-face engaging type fastener member, the thickness of the base portion is smaller than the protruding length of the engaging element or the connecting element from the base portion, so that the base portion tends to be warped or bent. In particular, in the case of a structure in which the whole is integrally molded from a resin material, the fastener member manufactured through the extrusion molding process and the injection molding process has a difference in the amount of injected resin on the main surface side and the back surface side of the base portion, and Due to the difference in shrinkage ratio caused by the difference in the shape and arrangement of the coupling element and the coupling element, there is a tendency that a warp with any one of the surfaces of the base portion being convex after molding. It has been known that such warpage occurs remarkably when the fastener member has an elongated strip shape and when it is formed by an extrusion molding process.

By the way, when the face-to-face engaging type fastener member is fixed to the cushion member by the insert molding process as described above, a support concave portion of the fastener member is provided in the molding space of the mold of the cushion member, and the base portion is formed in this concave portion. The fastener member is arranged with the connecting element on the back surface exposed in the molding space. At this time, the engaging element group of the fastener member is inserted into the recess, and the peripheral edge of the base is brought into close contact with the wall surface of the recess to prevent the foamable resin stock solution from entering the main surface of the base. When the foamable resin stock solution is poured into the molding space in this state to mold the cushion member, the fastener member is fixedly connected to the cushion member via the connecting element.

Therefore, when the fastener member having a warp at the base is to be fixed to the cushion member by the insert molding process, a gap is formed between the peripheral edge of the base of the fastener member disposed in the fastener member supporting recess and the wall surface of the recess. , There is a risk that the resin undiluted solution injected into the molding space will enter the main surface of the base through such a gap. The resin undiluted solution that has infiltrated into the main surface of the base portion is solidified while being entangled with the engagement element group and reduces the engagement function of the fastener member. Further, when the fastener member is fixed to the cushion member with the base portion having a warp, accurate mutual engagement between the engagement element group of the fastener member and the corresponding engagement element of the cover member becomes difficult, and the cover member becomes difficult. Tend to be deteriorated in adhesion strength, and the feel and appearance of the adhesion portion of the cover member tend to be impaired.

Therefore, an object of the present invention is to correct the warp and flexure of the base portion when the fastener member is fixed to the molding main body by the insert molding process when it is placed in the mold, thereby lowering the engaging function of the engaging element. An object of the present invention is to provide a fastener member for insert molding that can be firmly fixed to a predetermined position of a molding main body without causing a deterioration in the feel or appearance of an adherend. A further object of the present invention is to provide a method for easily and fixedly connecting such an insert molding fastener member to a molding body.

[0011]

In order to achieve the above object, the present invention provides a substantially flat strip-shaped base having a main surface and a back surface opposite to the main surface, and a plurality of bases provided on the main surface of the base. The engaging element and the connecting element provided on the back surface of the base are formed, and the insert element is formed by the insert forming step with the engaging element exposed on the surface of the forming body through the connecting element embedded in the forming body. In the insert-molding fastener member fixedly connected to the main body, the base portion includes a pair of first edges extending in the longitudinal direction and a pair of second edges extending in the transverse direction shorter than the first edges. In the present invention, there is provided a fastener member for insert molding, characterized in that elastically deformable thin-walled extension portions having a thickness smaller than that of the base portion are extended in the transverse direction over substantially the entire length of the first edge. .

Further, according to the present invention, in the above-mentioned insert molding fastener member, elastically deformable thin-walled extension portions having a thickness smaller than that of the base portion are provided at a pair of second edges of the base portion over substantially the entire length of the second edge. And a fastener member extending in the longitudinal direction.

Further, in the insert molding fastener member according to the present invention, the connecting element is provided with a longitudinal portion extending in the longitudinal direction of the base portion and a transverse portion extending in the transverse direction alternately and continuously in a meandering manner in the longitudinal direction. Provided is a fastener member including a ridge protrudingly provided on the back surface.

Further, the present invention provides the fastener member for insert molding, wherein at least a part of the protrusion has a shape in which the ridge gradually widens from the base end connected to the back surface to the free end at the tip.

Further, according to the present invention, in the above-mentioned insert-molding fastener member, the connecting element comprises a ridge protruding linearly continuously in the longitudinal direction of the base portion on the back surface, and the ridge is separated from the back surface. Provided is a fastener member having an anchor portion at a free end thereof having a transverse dimension larger than that of a base end connected to a back surface.

Further, the present invention is a method for fixedly connecting the above-mentioned insert-molding fastener member to the surface of the molding main body in a state where the engaging element is exposed, comprising: a) receiving and supporting a base portion of the fastener member. A first part and a second part for accommodating a plurality of engaging elements, the first part having a dovetail groove shape that opens at a predetermined position of a molding surface that defines a molding space, and defines a dovetail groove. The maximum spacing between the pair of opposed sloped sidewalls is less than the total transverse dimension of the fastener member base and thin extension, and the second portion is recessed in the bottom of the dovetail to surround the opening in the second portion. A mold mainly comprising a fastener member supporting recess formed by forming a substantially flat annular shelf wall in the first portion is prepared, and b) a plurality of engaging elements of the fastener member is supported by the second supporting recess.
While inserting into the portion, the free ends of the thin-walled extension portions of the base are respectively brought into contact with the pair of inclined side walls of the support recess to elastically deform the thin-walled extension portions, and the base portion is accommodated in the first portion. The elastic restoring force of the extension portion urges the base of the fastener member toward the second portion in the support recess, thereby bringing the peripheral region of the main surface of the base into close contact with the shelf wall of the support recess to prevent the base from bending. Modified, d) Injecting the resin undiluted solution into the molding space, immersing the connecting element of the fastener member arranged in the first portion of the supporting recess into the resin undiluted solution, and solidifying the resin undiluted solution in that state to form the molding main body. And e) releasing the mold from the molding body and the fastener member connected to the molding body.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on preferred embodiments with reference to the accompanying drawings. 1 to 4 show a fastener member 10 for insert molding according to an embodiment of the present invention. Fastener member 10
Is a face-to-face engaging type fastener member made of an integrally molded resin material, and has a substantially flat main surface 12 parallel to each other.
And a belt-shaped base portion 16 having a back surface 14, a plurality of engagement elements 18 standing upright on the main surface 12 of the base portion 16 with a predetermined spacing, and a connecting element 2 protruding from the back surface 14 of the base portion 16.
0.

The strip-shaped base 16 has a pair of first edges 22 extending linearly in the longitudinal direction and parallel to each other, and a pair of linear edges extending linearly in the transverse direction and parallel to each other and shorter than the first edge 22. A second edge 24 (only one second edge 24 is shown). From the pair of first edges 22 of the base portion 16, thin-walled extension portions 26 having a thickness smaller than that of the base portion 16 are extended in the transverse direction along substantially the entire length of the first edge 22. The thin extension 26 extends on the same plane as the main surface 12 of the base 16, and thus a step 28 is formed on the first edge 22 on the back surface 14 side of the base 16.

The thin extension 26 is integrally molded from the same resin material as the base 16 simultaneously with the molding of the base 16 in the step of molding the fastener member 10. Therefore, the thin-walled extension 26 having a smaller thickness than the base 16 is
6 can be elastically deformed more easily. This elastic deformation mainly occurs as bending or swinging of the thin wall extension portion 26 with the joint portion between the base portion 16 and the thin wall extension portion 26 as a fulcrum. The free end 26a of the thin extension 26 extends in a straight line substantially parallel to the first edge 22 of the base 16.

The plurality of engaging elements 18 are the fastener members 1
In the molding process of 0, at the same time as molding of the base portion 16,
6 is integrally molded from the same resin material. Each engaging element 1
8 includes a leg portion 30 that projects from the main surface 12 of the base portion 16 in a substantially upright state, and a plurality of engagement pieces 32 that project laterally in the vicinity of the tip of the leg portion 30. Therefore, in the fastener member 10, the plurality of engaging elements 18 engage with the corresponding engaging elements of the mating member at the engaging pieces 32 at the tip.

As shown in FIG. 3, a plurality of engaging elements 18
Is in a so-called zigzag pattern along the two substantially parallel rows extending in the longitudinal direction on the base 16 and the positions of the engaging elements 18 are offset from each other by a half of the longitudinal arrangement interval. Aligned. Such an arrangement allows the belt-shaped fastener member 10 to have sufficient adhesive strength to the mating member with the smallest possible amount of resin, and also facilitates die-cutting when the fastener member 10 is molded. It is advantageous.

The connecting element 20 is integrally molded from the same resin material as the base 16 at the same time as the base 16 is molded in the step of molding the fastener member 10. As shown in dashed lines in FIG. 3, the connecting element 20 comprises a longitudinal portion 34 extending in the longitudinal direction of the base 16 and a transverse portion 3 extending in the transverse direction of the base 16.
6 are alternately provided, and are formed in a meandering shape continuously in the longitudinal direction of the base 16 as a ridge having a predetermined cross-sectional shape. In the illustrated embodiment, the longitudinal portion 34 is disposed substantially parallel to the first edge 22 of the base 16 and the transverse portion 36 is the second edge 2 of the base 16.
It is arranged to be slightly inclined with respect to 4. The connecting element 20 is
It is embedded in the molding body by an insert molding process described below, whereby the fastener member 10 is firmly and fixedly connected to the molding body with the plurality of engaging elements 18 exposed on the surface of the molding body.

The connecting element 20, which is formed as a meandering ridge on the back surface 14 of the base portion 16, has a contact area between the connecting element 20 and the forming body in the longitudinal and transverse directions of the base portion 16 when embedded in the forming body. It is possible to secure equality and sufficientness in both directions. As a result, the fastener member 10 connected to the molding main body has a separating action that works to roll up from the molding main body in the transverse direction or the longitudinal direction with the first edge 22 or the second edge 24 of the base portion 16 as a starting point (that is, a trigger). Against this, the molded body is held at a predetermined position under the strong coupling force of the coupling element 20.

In order to improve the connecting force of the connecting element 20, at least a part of the longitudinal portion 34 and the transverse portion 36 is gradually widened from the base end connected to the base rear surface 14 to the free end of the other end. It preferably has a shape (see FIGS. 1 and 2). With such a shape, the connecting element 20 is embedded in the molding main body in a wedge shape, so that the fastener member 10 is more firmly held at a predetermined position of the molding main body against an external force.

Further, the connecting element 20 having a meandering shape.
Also locally increases the thickness of the base 16 at the longitudinal portion 34 and the transverse portion 36, thereby also increasing the rigidity of the base 16 against twisting. The connecting element 2
In order to fully exert the connecting force and the base reinforcing action of 0, it is advantageous to arrange the longitudinal portion 34 and the transverse portion 36 over the entire longitudinal length and the transverse transverse length of the rear surface 14 of the base 16.

In order to further improve the connecting force and the base reinforcing effect as described above, the connecting element 20 may be further optionally provided with a second transverse portion 38 extending in the transverse direction. The second transverse portion 38 is arranged between two transversely adjacent transverse portions 36 so as to intersect one longitudinal portion 34 at a substantially right angle. The second crossing portion 38 may have a prismatic leg portion 38a and a cylindrical head portion 38b bulging from the tip of the leg portion, as shown in FIGS. 1 and 2, for example.

The fastener member 10 having the above structure is
When a molding body is molded from a resin material, it is arranged as an insert in the mold of the molding body, and thereby firmly and fixedly connected to the molding body. This insert molding process will be described below with reference to FIGS.

First, as a preparation step, the fastener member 10 is placed at a predetermined position on the molding surface 42 which defines the molding space 40.
A mold 46, which is a molding main body and is provided with a supporting concave portion 44 for supporting, is prepared. The support recess 44 is the base 1 of the fastener member 10.
A longitudinal dimension D1 that is substantially equal to the longitudinal dimension d of 6 and a transverse dimension w that is a combination of the base portion 16 and both thin wall extension portions 26.
A substantially rectangular opening 48 having a transverse dimension W1 smaller than 1 (FIG. 4). In addition, the support recess 44 has an opening 48.
From the opening 48, a pair of substantially flat longitudinal slanted side walls 50 extending gradually apart from each other, a pair of substantially flat transverse side walls 52 extending parallel to each other from the opening 48, and the side walls 50, 52 intersecting on the same plane. A substantially flat shelf wall 54 extending in a substantially rectangular ring shape
And a second portion 44b having a peripheral wall 56 intersecting the shelf wall 54 and further recessed from the first portion 44a. Therefore, as shown in FIG. 5, the first portion 44a of the support recess 44 has a dovetail shape in which the width gradually widens from the opening 48 in the transverse cross section.

The second portion 44b of the support recess 44 has a longitudinal dimension D2 smaller than the longitudinal dimension d of the base 16 of the fastener member 10 and a transverse dimension W2 smaller than the transverse dimension w2 of the base 16 (FIG. 4). Adjacent to the shelf wall 54 is provided a substantially rectangular opening 58 having. The fastener member 10 inserts the plurality of engaging elements 18 into the second portion 44b of the support recess 44 and the base 16 and the connecting element 20 into the first portion.
It is housed in the portion 44 a and is arranged at a predetermined position in the mold 46 with the back surface 14 of the base portion exposed in the molding space 40. The second portion 44b has an area large enough not to contact the plurality of accommodated engaging elements 18 so that the engaging elements 18 of the fastener member 10 are not damaged by friction with the peripheral wall 56 or heat transfer. It is desirable to have.

The maximum distance W3 between the pair of longitudinal inclined side walls 50 of the supporting recess 44 (that is, the distance measured at the intersection between the longitudinal side wall 50 and the shelf wall 54) is the fastener member 10.
It is set to be substantially equal to or slightly smaller than the transverse dimension w1 of the base portion 16 and the thin extension portions 26. Therefore, when the fastener member 10 is placed in the support recess 44, both thin-walled extensions 26 of the fastener member 10 elastically bend, and the free ends 26a of each thin-walled extension 26 become the longitudinal sloped sidewalls of the support recess 44. Closely supported by 50. At this time, since the two long side walls 50 are inclined so as to gradually widen the mutual distance from the opening 48 toward the inner side of the recess, each thin extension 26 of the fastener member 10 is convex toward the shelf wall 54. And receives a force from each longitudinal side wall 50 toward the shelf wall 54 as a reaction force of its own elastic restoring force. By this force, the base portion 16 of the fastener member 10 is urged toward the inner depth of the support recess 44, that is, toward the second portion 44b.

Opening 58 of the second portion 44b of the support recess 44
Is slightly smaller than the main surface 12 of the base 16 of the fastener member 10 as described above. Therefore, when the fastener member 10 is urged toward the second portion 44b due to the elastic bending of the two thin extension portions 26, the main surface 1 of the base portion 16 is
Second narrow region 12a (FIG. 5) near the first edge 22 and the second
The narrow region 12b (FIG. 6) near the edge 24 is the support recess 44.
Is abutted against the shelf wall 54 of. In this way, the support recess 4
By the biasing force received from each longitudinal side wall 50 of No. 4,
Since the main surface 12 of the base member 16 is pressed against the flat shelf wall 54 in each of the regions 12a and 12b in the vicinity of the peripheral edge thereof, the warp and bending of the base portion 16 generated during the molding of the fastener member 10 are corrected, and the main surface of the base portion 16 is corrected. Peripheral region 12a of 12;
12b and the shelf wall 54 are in close contact with each other. In that state, the fastener member 10 is fixedly supported in the support recess 44.

After the fastener member 10 is thus supported in the support recess 44, a foamable resin stock solution 60, for example, is injected into the molding space 40 of the mold 46. At this time, since the fastener member 10 is fixedly held in the support recess 44 by the elastic restoring force of each thin wall extension 26 as described above, it receives the flow pressure of the resin stock solution 60 flowing into the first portion 44a. Even if it does not move. Moreover, each thin wall extension 2
The resin stock solution 60 penetrates into the second portion 44b of the support recess 44 due to the close contact between the free end 26a of 6 and each longitudinal side wall 50, and the close contact between the peripheral edge regions 12a and 12b of the main base surface 12 and the shelf wall 54. Is certainly prevented. as a result,
Engaging element 18 of fastener member 10 by mixing resin pieces
The deterioration of the engaging function of is avoided.

When the resin stock solution 60 is solidified and the molding body 62 is molded, the fastener member 10 is firmly fixed to the molding body 62 via the connecting element 20. Then, when the mold 46 is detached from the molding body 62, the molding body 62 is obtained in which the fastener member 10 holding the base portion 16 in a flat state is fixed at a predetermined position on the surface with the engaging element 18 exposed. In particular, when the resin undiluted solution 60 is made of a foamable resin undiluted solution, as shown in FIG. 8, each thin-walled extension 26 of the base 16 of the fastener member 10 returns to its original shape parallel to the main base surface 12 due to its elastic restoring force. The flatness of the base 16 of the fastener member 10 is further improved. Such a fastener member 10 in which the base 16 is held in a flat shape is formed by the molding main body 6
Since it is possible to accurately engage the plurality of engaging elements 18 of the fastener member 10 with the corresponding engaging elements of the adherend (not shown) to be attached to the second member, the fixing strength of the adherend can be improved. Can be improved. In addition, at this time, the feel and the appearance of the adherend are not impaired at the part where the adherend is fixed to the molding body 62.

The angle α formed between each longitudinal side wall 50 and the shelf wall 54 in the support recess 44 of the mold 46 is, for example, 80 °.
It is set in the range of not less than 90 ° and preferably 85 ° to 88 °. If the angle α is smaller than the above range, the molding main body 62 may be damaged at the connecting portion with the fastener member 10 when the mold 46 is detached from the molding main body 62, or the long side wall 50.
There is a tendency that the fastener member 10 collides with the fastener member 10 and separates from the molding body 62. On the other hand, when the angle α is 90 ° or more, the base portion 16 of the fastener member 10 is
Therefore, the elastic biasing force exerted toward the second portion 44b of the support recess 44 cannot be obtained.

The opening 58 of the second portion 44b of the support recess 44 may have a transverse dimension W2 that is substantially equal to or slightly larger than the transverse dimension w2 of the base 16 of the fastener member 10. In this case, due to the elastic biasing action of each thin wall extension 26 of the fastener member 10, each thin wall extension 2
The region near the base end of the joint of 6 with the base 16 is brought into close contact with the shelf wall 54 of the support recess 44, but it is also possible to correct the warp and bending of the base 16. Further, the longitudinal dimension D1 of the first portion 44a of the support recess 44 is
Can be set to be slightly larger than the longitudinal dimension d of the base portion 16 of the fastener member 10 as shown in FIG. This facilitates the work of inserting the fastener member 10 into the support recess 44 while elastically deforming each thin extension 26.

The fastener member 10 having the above structure is
For example, in the automobile seat 100 shown in FIG. 9, as a fixing means of the cover member 104 when the cover member 104 made of cloth, leather or the like is attached to the surface of the cushion member 102 made of the molded product of the expandable resin material. Particularly preferably used. In this case, the fastener member 10 is fixedly connected to a predetermined position on the surface of the cushion member 102 during the molding of the cushion member 102 by the insert molding process described above. It should be noted that in such an application to the automobile seat 100, as shown in FIG.
It is desirable to dispose the fastener member 10 in the groove 106 provided at a predetermined position of the cushion member 102 as shown in FIG. For that purpose, in the mold 46 shown in FIG.
The protrusion height of the protrusion 64, which is provided at a predetermined height from the molding surface 42 to provide the support recess 44, may be further increased. However, depending on the application of the fastener member 10, the supporting recess 44 may be directly recessed in the molding surface 42 of the mold 46 without using such a protrusion.

In the above-mentioned application to the automobile seat 100, the back surface of the cover member 104 (the cushion member 102).
Corresponding engagement elements 108 that engage with the plurality of engagement elements 18 of the fastener member 10 are provided on the contact surface). The corresponding engagement element 108 is made of a loop material 110 sewn at a predetermined position on the back surface of the cover member 104, for example, as shown in FIG. Alternatively, as shown in FIG. 11B, the loop material 112 can be attached to the entire back surface of the cover member 104. In either case, the cover member 104 is partially bent and sewn to the rib portion 11 as illustrated.
4 is formed, and the loop members 110 and 112 arranged in the rib portion 114 are inserted between each row of the engaging element groups 18 arranged in two rows on the base portion 16 of the fastener member 10, each engaging element. 18 engaging pieces 32 facilitate the loop members 110, 11
This is advantageous because it engages 2 and a strong fixing force is obtained (see FIG. 12).

As described above, when applied to the automobile seat 100, since the base portion 16 of the fastener member 10 connected to the cushion member 102 is held flat,
It becomes possible to accurately engage the plurality of engaging elements 18 of the fastener member 10 with the corresponding engaging elements 108 of the cover member 104, and the cover member 104 becomes the cushion member 102.
Firmly adhered to. Moreover, at the fixing portion of the cover member 104 to the cushion member 102, the cover member 104 is
Since it does not impair the touch and appearance of the vehicle, it can provide the seated person with a high level of comfort and a high quality feeling.

The insert molding fastener member according to the present invention can have various shapes and dimensions. For example, in the above embodiment, the base portion 16 of the fastener member 10 is as small as possible so as not to impair the feel and appearance of the adherend within a range that does not reduce the fixing strength of the adherend or the adhesion to the molding body. And is therefore in the form of an elongated strip having a longitudinal dimension greater than the transverse dimension. The longitudinal dimension d of the base 16 is, for example, 50 mm
~ 500 mm. Also, the transverse dimension w2 of the base portion 16
Is, for example, 3 mm to 30 mm, preferably 4 mm to 10 mm. When the dimensions d and w2 are smaller than the above range, it becomes difficult to firmly fix the adherend, and when the dimensions d and w2 are larger than the above range, the warp and the flexure of the base portion 16 tend to be so remarkable that they are difficult to correct. Furthermore, the thickness t1 of the base 16 (the distance between the main surface 12 and the back surface 14) is, for example, 0.5 mm to
It is 5 mm, preferably 1 mm to 3 mm. When the thickness t1 is smaller than the above range, the warp or bending of the base portion 16 becomes so remarkable that it is difficult to correct, and when the thickness t1 is larger than the above range, the feel and appearance of the adherend tend to be impaired.

The thin wall extension 26 of the base 16 is advantageously provided along substantially the entire length of the first edge 22 of the base 16 in order to reliably correct warpage and flexure of the base 16. is there. The transverse dimension e of the thin extension 26 is, for example, 1 mm to 10 mm, preferably 1.2 mm to 3 mm. When the transverse dimension e is smaller than the above range, elastic deformation of the thin wall extension portion 26 becomes difficult and the function of correcting the warp of the base portion 16 is deteriorated. When it is larger than the above range, the elastic biasing force to the base portion 16 is decreased. Or it becomes difficult to arrange the support recess 44 in the support recess 44. The thickness t2 of the thin extension 26 is, for example, 0.2 mm to 3 mm, preferably 0.3 mm to 1 mm. If the thickness t2 is smaller than the above range, the elastic biasing force to the base portion 16 is reduced, and it is damaged when it is placed in the support recess 44, and if it is larger than the above range, elastic deformation of the thin extension portion 26 becomes difficult. As a result, the function of correcting the warp of the base 16 tends to deteriorate.

The thin-walled extension 26 of the base 16 extends longitudinally in a sawtooth shape as shown in FIG. 13 to facilitate insertion of the base 16 into the support recess 44 of the mold 46 during the insert molding process. A free end 26a can be provided. Alternatively, the thin extension 26 may include a sinusoidal or rectangular wave free end 26a. With such a configuration, the contact length between the free end 26a of the thin extension 26 and the longitudinally inclined side wall 50 of the support recess 44 is reduced as compared with the case of the embodiment of FIG. The force required to insert the base 16 is reduced. This effect becomes more advantageous as the longitudinal dimension of the base 16 increases.
To reduce the labor burden on workers. In this case, the base 16
It is desirable to determine the shape of the thin-walled extension portion 26 within a range in which the function of correcting the warp of the base portion 16 is not deteriorated due to the reduction of the elastic biasing force to the.

Further, in the base portion 16, a pair of second edges 24 extending in the transverse direction can be provided with elastically deformable thin-wall extensions (not shown) having a smaller thickness than the base portion 16. This thin-walled extension portion extends from the second edge 24 in the longitudinal direction over substantially the entire length of the second edge 24, thereby providing the first extension.
Similar to the thin extension 26 of the rim 22, the base 16 is elastically deformed when the base 16 is inserted into the support recess 44 of the mold 46 in the insert molding step, and the warp of the base 16 is corrected to correct the base main surface 1.
The action of closely adhering the region near the peripheral edge of 2 to the shelf wall 54 is promoted.

The engaging element 18 has a mushroom shape having a hemispherical shape, a spherical shape, a cone shape, or a cap shape, a hook shape, a loop shape, in addition to the projecting shape having the arrowhead-shaped head shown in FIG. It may have various protrusion shapes such as a shape, an umbrella shape, a palm tree shape, and the like.
Alternatively, as the engaging element, a combination structure of a tongue and a groove or a group of conical tapered struts having a cone or truncated cone shape as disclosed in US Pat. No. 4,875,259 may be applied. it can. For example, in the engaging element 18 having the arrowhead-shaped head portion shown in FIGS. 1 and 14, the protrusion height h1 from the base main surface 12 is, for example, 1 mm to 8 mm, preferably 3 mm.
~ 6 mm. When the height h1 is smaller than the above range, the engaging function of the engaging element 18 is deteriorated, and when the height h1 is larger than the above range,
It tends to impair the feel and appearance of the adherend. Further, the distance r between the tips of the opposed engagement pieces 32 of the engagement element 18 is, for example, 0.
5 mm to 2 mm, the thickness s of the leg portion 30 is, for example, 0.5 mm to 2
mm, the length h2 of the leg portion 30 is, for example, 1 mm to 5 mm.
Furthermore, the standing density of the engaging elements 18 on the base main surface 12 is, for example, 10 pieces / cm ^{2 to} 100 pieces / cm ² , preferably 25 pieces / cm ^{2 to} 60 pieces / cm ² .

The plurality of engaging elements 18 are not limited to the zigzag arrangement arranged in two rows along the longitudinal direction on the base 16 as shown in FIG. 3, but may be arranged in parallel so as to overlap each row in the transverse direction. You can also In addition, both the staggered arrangement and the parallel arrangement can be arranged in three or more rows along the longitudinal direction. In this way, if the arrangement of the plurality of engaging elements is appropriately selected, only one or a plurality of relative rotational positions of the insert molding fastener member according to the present invention and the mating member in the facing state, It is also possible to allow mutual engagement of both members. By the way, it is desired that the fastener member 10 be manufactured by an injection molding process in order to reduce warpage and flexure of the base portion 16 that occur at the time of molding thereof. In that case, in a parallel arrangement of two or more rows, It becomes difficult to remove the mold. In such cases, US Pat. No. 5,2
A method of integrally forming a base, an engaging element, and a connecting element from a resin material by an injection molding process using a destructively detachable mold such as a leg mold disclosed in No. 42,646. Is advantageous.

The fastener member according to the present invention is known as one in which the base portion and the engaging element are integrally molded from the same resin material as described above ("Super Dual Lock" (trademark of 3M Company)). Known as "dual lock" (trademark of 3M Company), for example, having a base made of plastic and an engaging element made of a plurality of resin monofilaments implanted in the base. )
Also applicable to A hook or loop used in a hook-and-loop type fastener (known as "Scotch Mate" (trademark of 3M Company)) can also be used as the engaging element.

The connecting element 20 resists the separating action which acts to roll up the base 16 transversely or longitudinally from the forming body, and in order to increase the rigidity of the base 16 against twisting, the longitudinal portion 34 and the transverse portion 36. And preferably. In this case, the connecting element 20 is not limited to the shape of the meandering ridge shown in FIG. 3, but is, for example, the meandering ridge 20 including only the longitudinal portion 34 and the transverse portion 36 of FIG.
a, a separate type meandering ridge 20b having a groove in the longitudinal portion 34 of FIG. 15B, a separate type T-shaped ridge 20c of FIG. 15C,
Other shapes can be adopted. Any of these shapes facilitates detachment of the mold at the time of molding the fastener member 10, and removes the resin undiluted solution of the molding main body at the time of insert molding while expelling air in the transverse direction of the base, and every corner of the surface of the connecting element 20. Since it can be easily spread even up to, it is possible to improve the connection strength between the fastener member 10 and the molding body.

The protruding height c of the connecting element 20 from the rear surface 14 of the base is, for example, 1 mm to 20 mm. Further, in the wedge-shaped connecting element 20 of FIG. 1 that improves the connecting strength between the fastener member 10 and the molding body, the angle formed by the base back surface 14 and the inclined side surface of the connecting element 20 is, for example, 5 ° to 30 °. . Furthermore, in order to further improve the connection strength between the fastener member 10 and the molding body, in addition to the connection element 20,
For example, a secondary connecting element (not shown) having a protrusion shape similar to that of the engaging element 18 can be selectively added. The connection strength with respect to the pulling force acting in the vertical direction with respect to the base 16 is, for example, 5 kg or more, and the connection strength with respect to the peeling force that acts to roll up the first edge 22 from the base 16 is, for example, 2 kg or more. (In both cases, the dimensions of the base 16 are d = 50 cm and w2 = 8 mm).

By the way, as described above, the connecting element 20 of the fastener member 10 of FIG. 1 is provided with the longitudinal portion 34 and the transverse portion 36 extending in a meandering shape, so that the rigidity of the base portion 16 against torsion is enhanced. . At the same time, it has been found that the meandering connecting element 20 exhibits high rigidity against bending of the base portion 16 in a direction parallel to the main surface 12 (hereinafter, referred to as a horizontal direction). Therefore, the fastener member 10 is suitable for use in which it is linearly connected to the molding main body, but is not applicable when it is required to connect to the molding main body while the base 16 is bent in the horizontal direction. Have difficulty. As such an application, for example, in a bucket seat type automobile seat having a three-dimensional shape that conforms to the body shape of a seated person, a fastener member is formed along a curved seam of a cover member three-dimensionally sewn according to a cushion shape. The case of arranging is mentioned. Figures 16-18 show some alternative embodiments of connecting elements that allow the application of fastener members in such cases.

The connecting element 70 according to the modified embodiment shown in FIG. 16 is integrally molded from the same resin material as the base portion 16,
It is composed of a ridge formed on the back surface 14 so as to be linearly continuous in the longitudinal direction of the base portion 16. This ridge is provided with a thin plate-shaped leg portion 72 which is joined to the rear surface 14 at substantially the center in the transverse direction at the base end.
The leg portion 72 has a substantially uniform thickness (transverse direction dimension) as a whole, and is arranged in a substantially upright shape along a center line extending in the longitudinal direction of the back surface 14. Further, at the free end of the leg portion 72 on the side away from the back surface 14, the base portion 1 is provided on both sides in the transverse direction of the leg portion 72.
A thin plate-shaped anchor portion 74 extending substantially parallel to 6 is formed. The anchor portion 74 has a substantially uniform thickness as a whole, and a transverse direction dimension w of the base 16 and both thin wall extension portions 26 combined.
It has a transverse dimension substantially equal to 1.

The connecting element 70 having such a structure is
Since the base portion 16 and the anchor portion 74, which are balanced in terms of material strength, are joined by the leg portion 72 at a predetermined interval, stress is generated between the base portion 16 and the anchor portion 74 when the base portion 16 is bent in the horizontal direction. To be distributed almost evenly. Moreover, the leg portion 72 itself does not prevent the base portion 16 from bending in the horizontal direction. As a result, the base portion 16 can be easily bent in the horizontal direction without being twisted or bent in a wave shape. Therefore, the fastener member provided with the connecting element 70 can be easily insert-molded into the curved groove of the cushion member in, for example, an automobile seat of the bucket seat type, and the corresponding engagement of the curved seam of the three-dimensional sewing cover member. It is possible to firmly engage the element to bring the cover member into close contact with the cushion member, and improve the functionality and design. Further, regardless of the shape of the molding body, the fastener member can be flexibly installed at a position that does not touch the human body (for example, a seated person) or is less frequently touched. It can exert a sufficient fastener function without losing the feel. The connecting element 70 is
Needless to say, when the anchor portion 74 is embedded in the molding main body by the insert molding process, the anchor portion 74 bites into the molding main body in a wedge shape to exert a strong coupling force.

The connecting element 70 has a transverse dimension w1 of the base 16 and the two thin extensions 26, a combined height p of the base 16 and the coupling element 70, and a transverse dimension y of the anchor portion 74. When substantially equal, it facilitates bending of the base 16, especially in the horizontal direction. In this case, the leg portions 72 are arranged so as to be displaced inward with respect to the bending radius (that is, in FIG. 1).
If the H-shaped cross section of 6 (b) is corrected to a U-shaped cross section), the bending becomes easier. However, in such a configuration,
At the time of insert molding, a worker must check the position of the leg portion 72 and place the leg portion 72 in the mold, which is complicated. Further, in consideration of the meandering flexure in the S shape in the horizontal direction, it is preferable to arrange the leg portion 72 substantially at the center of the back surface 14 in the transverse direction as shown in the drawing.

In the connecting element 70, as shown in FIG. 16 (a), a plurality of slits 76 can be provided in the anchor portion 74 at predetermined intervals in the longitudinal direction. With such a configuration, at the time of insert molding, the molding main body is solidified in a state of entering the slit 76 of the anchor portion 74, so that the connecting force for connecting the fastener member to the molding main body can be further increased. In particular, the slit 76 allows the base 16 to be inserted into the second edge 24 of the base 16 by intruding the molding body.
It acts so as to firmly anchor the anchor portion 74 to the molding main body against the separating force acting to roll up from the molding main body in the longitudinal direction. From such a viewpoint, the second edge 24 that can serve as a starting point for rolling up the base portion 16 in the longitudinal direction.
At least one slit 76 may be provided adjacent to.

The slit 76 further has the base 16 in a direction orthogonal to the main surface 12 (hereinafter
It also serves to facilitate bending in the vertical direction). Due to this action, the fastener member including the connecting element 70 can be installed particularly on various three-dimensional curved surface portions of the surface of the cushion member of the vehicle seat, and the fixing portion of the cover member can be set at a desired position. This has the advantage of increasing the degree of freedom. From this point of view, the number of slits 76 is increased and the slits 76 are also formed on the leg portions 72.
Is advantageously formed continuously. However, in that case, the effect of balancing / dispersing the stress when the base portion 16 is bent in the horizontal direction is weakened, and the bending in the horizontal direction tends to be difficult. Therefore, depending on the required bending direction,
It is desirable to select the shape and number of slits 76.

It is desirable that the longitudinal dimension x of the slit 76 is as small as possible from the viewpoint of facilitating the bending in the horizontal direction. There is a fear that the resistance against the separating action that acts to roll 16 up from the forming main body in the longitudinal direction decreases. Therefore, it is preferable that the slit 76 has a shape in which x is as small as possible in a portion adjacent to the leg portion 72 as shown in the drawing and is gradually enlarged toward the tip of the anchor portion 74.

The connecting element 80 according to the modified embodiment shown in FIG. 17 is integrally molded from the same resin material as the base portion 16,
It is composed of a ridge formed on the back surface 14 so as to be linearly continuous in the longitudinal direction of the base portion 16. This ridge has a thin plate-like leg portion 82 which is joined to the rear end 14 at a substantially central portion in the transverse direction at the base end.
The leg portion 82 has a thickness (transverse direction dimension) that gradually increases from the base end coupled to the back surface 14 toward the free end of the tip, and the region having the maximum transverse direction dimension of the free end serves as the anchor portion 84. To work.

The connecting element 80 is provided with an anchor portion 84 at the free end of the tip remote from the back surface 14 and having a transverse dimension larger than that of the base end of the connection with the back surface 14, whereby the connecting element 70 of FIG. Similarly, the stress when the base portion 16 is bent in the horizontal direction can be dispersedly applied to the base portion 16 and the anchor portion 74, and as a result, the bending of the base portion 16 in the horizontal direction can be facilitated. it can. However, in the connecting element 80, the maximum transverse dimension q of the anchor portion 84, that is, the leg portion 82, is smaller than the transverse dimension w1 of the base 16 and the two thin-walled extension portions 26 combined, and thus the connecting element 70.
Compared with, the action of facilitating the bending of the base portion 16 in the horizontal direction is inferior.

In the connecting element 80, a plurality of through holes 8 penetrating the leg 82 in the transverse direction near the free end of the leg 82.
6 can be provided at predetermined intervals in the longitudinal direction.
With such a configuration, during insert molding, the molding main body is solidified in a state of entering the through hole 86, so that the connecting force for connecting the fastener member to the molding main body can be further increased. In particular, the through hole 86 allows the leg portion 82 to act as a forming main body against the separating force that acts to roll up the base 16 in the longitudinal direction from the second edge 24 of the base portion 16 when the forming main body enters. It acts so as to firmly lock. It is desirable that the size of the through hole 86 be determined within a range that does not significantly reduce the mechanical strength of the leg portion 82.

As an example, the base 16 is horizontally set to 100 mm.
Suitable dimensions in each of the above-described modified embodiments on the assumption that they are bent with the above radius of curvature are listed below. The thickness t1 of the base portion 16 is 0.5 mm to 3 mm. Transverse dimension w1 = 4mm of the base 16 and both thin wall extensions 26
~ 20 mm. Combined height of the base 16 and the connecting element 70 (80) p = 4 mm to 20 mm. The maximum transverse dimension q of the leg portion 72 (82) is q = 0.5 mm to 5 mm. Thickness s of anchor portion 74
= 0.5 mm to 3 mm. Transverse dimension y of anchor portion 74 =
2.5 mm to 20 mm. Maximum longitudinal dimension x of slit 76
= 0.5 mm to 5 mm. The maximum longitudinal dimension z of the anchor portion 74 divided by the slit 76 is 5 mm to 50 mm. Number of slits 76 (per 10 cm in the longitudinal direction) = 1 to 20
Pieces. If the free end 26a of the thin extension 26 is formed in a wavy or sawtooth shape in the same size range as described above, the base 16 can be bent horizontally with a radius of curvature of 50 mm or more.

Since the fastener member according to the present invention has a strip shape, as discussed in the above description, after the insert molding is performed on the molding main body, the base is rolled up from the molding main body in the longitudinal direction from the second edge of the base. It is desired that the base can be firmly hooked to the molding body against the separating force that acts.
In order to impart such a function, for example, FIGS.
In each of the embodiments shown in FIG. 17 and FIG. 18, only the base 16 can be extended in the longitudinal direction in the vicinity of the second edge 24, as shown in FIG. In this case, the supporting recess 44 is provided at a predetermined height from the molding surface 42 of the mold 46, which is the main body for molding, and the lateral side wall 52 that defines the supporting recess 44 (FIG. 6).
Is omitted and the shelf wall 54 is communicated with the outside of the support recess 44,
As shown in the figure, the fastener member is placed in the mold 46 in a state where the longitudinal extension 16a of the base 16 is supported by the shelf wall 54 and extended to the outside of the support recess 44 (FIG. 18A). If insert molding is performed in this state, as shown in FIG. 18B, the longitudinal extension 16a of the base 16 is embedded in the molding main body 62, so that the base 16 is molded in the longitudinal direction from the second edge 24 of the molding. The base portion 16 is firmly hooked to the molding main body 62 against the separating force acting to roll up from the main body 62.

The fastener member according to the present invention is formed by connecting two or more fastener members (for convenience, referred to as single fastener members) as described in each of the above embodiments in the longitudinal direction. Including things. Such a combined fastener member is preferably integrally formed by connecting a plurality of unit fastener members with each other by a flexible joint element (joint) having a transverse dimension smaller than the transverse dimension of the base. To be done. Therefore, the combined fastener member has an effect of facilitating the positioning of each single fastener member and improving workability when the plurality of single fastener members are attached to a plurality of relatively close locations on the molding body.

Preferably, the coupling element is integrally molded from the same material as the base to the same thickness in the base to bond the bases together. Coupling elements of such a construction can be more easily flexed than the base by providing a smaller transverse dimension than the base. Alternatively, a wire or strip made of a flexible metal material such as wire may be used as the connecting element, and the wire or the strip may be integrally incorporated into each single fastener member by the insert molding method. Further, the coupling element may be shaped to be embedded in the molding body when insert-molding the coupling type fastener member, but the coupling element itself may be provided with the above-mentioned coupling element and the coupling element may mold the coupling element. A configuration in which the main body is fixedly connected is preferable. The relative arrangement of the individual fastener members on the molding body is arbitrary,
In consideration of workability, the longitudinal dimension of the coupling element is preferably set in the range of 5 mm to 100 mm.

The fastener member according to the present invention can be formed from various materials. In particular, in order to exert an appropriate biasing force on the base by elastic deformation of the thin-walled extension of the base,
The flexural modulus of the thin extension is preferably 9800 N / cm ²
Up to 245,000 N / cm ² , particularly preferably 49,000 N
/ Cm ^{2 to} 196000 N / cm ² is required. In order to achieve such a flexural modulus, suitable materials for the fastener member include polyamide (6-nylon (trademark), 6,6-nylon (trademark), etc.), polypropylene, polyethylene, ionomer, polyacetal, polyester ( Polyethylene terephthalate, polyethylene naphthalate, etc.), polyphenylene sulfide, polyether ketone, polyether ester, polyether sulfone, polyether imide, polysulfone, and polyarylate. Of these, particularly preferable materials are 6-nylon (trademark), 6,6-nylon (trademark), and polypropylene.

It is also possible to add a filler such as carbon black, glass fiber, titanium oxide or iron oxide to such a resin material to control the flexural modulus within a suitable range. A particularly suitable filler is carbon black. In this case, the content of carbon black is preferably 0.01 to 10 parts by weight with respect to 100 parts by weight of the resin,
It is particularly preferably in the range of 1 to 5 parts by weight. If the content of carbon black is less than this range, it tends to be difficult to control the elastic modulus, and if it is more than this range, the lubricating effect due to carbon black becomes remarkable, and the connecting strength for connecting the fastener member to the molding main body decreases. Tend to do.

In the above-described application to the automobile seat 100, the cushion member 102 includes, for example, a polyol such as polypropylene glycol, a polyisocyanate such as tolylene diisocyanate, a foaming agent such as an aqueous amine solution, a curing accelerator, and the like. And a foamable resin material composed of a mixture thereof with. This mixture is usually stirred and mixed immediately before use, poured into a mold, and after pouring, the temperature is 25 ° C to 18 ° C.
Perform the foaming-curing operation at a temperature of 0 ° C. to cure. On the other hand, the loop height of the corresponding engagement element 108 provided on the cover member 104 is, for example, 1 mm to 10 mm, preferably 3 mm to 4
mm.

[0065]

As is apparent from the above description, according to the present invention, it is possible to surely correct the warp and bending of the base portion of the fastener member when it is arranged as an insert in the mold, so that the engagement of the engaging element is performed. It is possible to firmly fix the fastener member at a predetermined position of the molding main body without deteriorating the function or impairing the feel and appearance of the adherend.
Further, according to the present invention, such an insert molding fastener member can be easily and fixedly connected to the molding body.

[Brief description of drawings]

FIG. 1 is a partially enlarged perspective view of a fastener member according to an embodiment of the present invention.

FIG. 2 is a front view of the fastener member of FIG.

FIG. 3 is a plan view of the fastener member of FIG.

4 is a cross-sectional view taken along the line IV-IV of FIG.

5 is a transverse cross-sectional view showing a state in which the fastener member of FIG. 1 is arranged as an insert in a mold.

6 is a longitudinal cross-sectional view showing a state where the fastener member of FIG. 1 is arranged as an insert in a mold.

FIG. 7 is a cross-sectional view in a transverse direction showing a state where a resin stock solution is poured into the mold of FIG.

FIG. 8 is a cross-sectional view in the transverse direction of a molding body in which a fastener member is fixed to the surface by an insert molding process.

FIG. 9 is a perspective view of an automobile seat to which the fastener member according to the present invention can be applied.

10 is a partial enlarged cross-sectional view taken along the line XX of FIG.

FIG. 11 is a view showing a corresponding engaging element of the adherend that engages with the fastener member according to the present invention, and (a) a partially enlarged perspective view of the rear surface of the adherend when a local loop member is used; FIG. 7B is a partially enlarged perspective view of the adherend when the entire surface loop member is used.

FIG. 12 is an enlarged cross-sectional view showing the fastener member engaged with the corresponding engagement element of the adherend.

FIG. 13 is a plan view showing a modified embodiment of the thin extension portion.

14 is a partially enlarged cross-sectional view showing an engaging element of the fastener member of FIG.

15 (a) to 15 (c) are partially enlarged bottom views showing modifications of the connecting element of the fastener member of FIG.

FIG. 16 shows a variant embodiment of the connecting element, (a)
Partially enlarged perspective view of fastener member, and (b) line XVI-
FIG. 6 is a sectional view taken along line XVI.

FIG. 17 shows another variant embodiment of the connecting element,
(A) Partial enlarged perspective view of a fastener member, and (b) line
FIG. 7 is a sectional view taken along line XVII-XVII.

FIG. 18 is a view showing a modified embodiment of the base portion, (a) a longitudinal sectional view of a fastener member arranged in a mold of a molding main body;
And (b) is a longitudinal sectional view of a fastener member insert-molded into a molding body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Fastener member 16 ... Base part 18 ... Engagement element 20, 70, 80 ... Connection element 22 ... First edge 24 ... Second edge 26 ... Thin extension 34 ... Longitudinal portion 36 ... Transverse portion 44 ... Support recess 46 ... Mold 50 ... Long side wall 54 ... Shelf wall 62 ... Molding main body 72, 82 ... Leg part 74, 84 ... Anchor part 102 ... Cushion member 104 ... Cover member

Claims (6)

[Claims] 1. A substantially flat band-shaped base having a main surface and a back surface opposite to the main surface, a plurality of engagement elements provided on the main surface of the base, and provided on the back surface of the base. And a connecting element fixedly connected to the molding body by the insert molding process, with the engaging element being exposed on the surface of the molding body, through the connecting element embedded in the molding body. In the fastener member for insert molding according to claim 1, the base portion includes a pair of first edges extending in the longitudinal direction and a pair of second edges extending in the transverse direction shorter than the first edges, and the base portions are provided at the first edges. An insert-molding fastener member, characterized in that elastically deformable thin-walled extensions having a smaller thickness extend in the transverse direction over substantially the entire length of the first edge. 2. An elastically deformable thin-walled extension portion having a thickness smaller than that of the base portion is provided at the pair of second edges of the base portion,
The fastener member for insert molding according to claim 1, wherein the fastener member for insert molding is extended in the longitudinal direction over substantially the entire length of the second edge. 3. The connecting element is alternately provided with longitudinal portions extending in the longitudinal direction and transverse portions extending in the transverse direction of the base portion, and is projectingly provided on the back surface in a meandering continuous manner in the longitudinal direction. The fastener member for insert molding according to claim 1 or 2, which comprises a ridge. 4. The fastener member for insert molding according to claim 3, wherein at least a part of the ridge has a shape that gradually widens from a base end connected to the back surface to a free end at a tip. 5. The connecting element comprises a ridge that is linearly continuous in the longitudinal direction of the base and projects from the back surface, the ridge being provided at a free end remote from the back surface. The fastener member for insert molding according to claim 1 or 2, further comprising an anchor portion having a transverse dimension larger than that of a base end connected to the back surface. 6. A method for fixedly connecting the insert molding fastener member according to claim 1 to a surface of a molding body in a state where the engaging element is exposed, comprising: a) the base portion of the fastener member. First to accept and support
A portion and a second portion for accommodating the plurality of engaging elements, the first portion having a dovetail shape opening at a predetermined position of a molding surface defining a molding space, and defining the dovetail groove. The maximum distance between the pair of opposed inclined side walls is smaller than the total transverse dimension of the base portion and the thin extension of the fastener member, and the second portion is recessed at the bottom of the dovetail groove. A mold-based mold provided with a fastener member supporting recess having a substantially flat annular shelf wall surrounding the opening of the second portion is formed in the first portion, and b) the plurality of engagements of the fastener members. The element is inserted into the second portion of the support recess and each free end of the thin wall extension of the base is abutted against the pair of inclined sidewalls of the support recess to elastically deform the thin wall extension. While accommodating the base in the first part, c) the The base portion of the fastener member is urged toward the second portion in the support recess by the elastic restoring force of the meat extension portion, thereby causing the peripheral region of the main surface of the base portion to the shelf wall of the support recess. To correct the flexure of the base, and d) injecting a resin stock solution into the molding space of the mold to cause the connecting element of the fastener member disposed in the first portion of the support recess to Immersing in the resin stock solution, solidifying the resin stock solution in that state to form a molding body, and e) detaching the mold from the molding body and the fastener member connected to the molding body. The method characterized by having done.