JP2000317945A - Guide and molded article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily remove a guide for supporting a fastener member without scratching a molding object after forming the main molding with the fastener member fitted. SOLUTION: The guide 10 has a pair of side wall parts 22 demarcating a base part 14 of a fastener member 12 and a receiving part 20 housing engaging elements 18. Further, a pair of sealing parts 26 are provided on both end regions along the extension of the receiving part 20 between the side wall parts 22, thereby a groove part 30 is formed in the receiving part 20. The paired sealing parts 26 are equipped with a sealing face 26a respectively, extending in a curve in a recessed shape toward both ends in the extension direction of the receiving part 20 so that the depth of the receiving part 20 is substantially diminished gradually. In addition, each of the sealing faces 26a comes into close contact with one face 16 of the base part 14 of the fastener member 12 housed in the receiving part 20, and thereby seals the groove part 30. Thus a molten material is prevented from penetrating into the groove part 30 during forming a molding object. The fastener member 12 has its both ends in the longitudinal direction embedded in the corners of the recessed parts of the main molding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide used for integrally attaching a fastener member to a molding body. Further, the present invention relates to a molded article obtained by integrally attaching a fastener member to a molding main body.

[0002]

BACKGROUND OF THE INVENTION Vehicle seats, office or home chairs,
In an article such as a mattress having a cushioning core material formed of a molded article of a foamable resin material and a flexible coating material such as a cloth or leather covering the surface of the core material, the coating material is coated with a core material. In order to firmly and firmly adhere to the material,
It is known to use a face-to-face engagement type fastener member (so-called hook-and-loop fastener) in which a plurality of engagement elements are arranged on one surface of a base (for example, see Japanese Patent Application Laid-Open No. 9-224720).

[0003] In particular, for articles such as seats and chairs, it is desired to provide the user with a high level of comfort. Therefore, as a fixing means for attaching the covering material to the core material, the seam of the covering material is used. There is a tendency to use a fastener member having an elongated band shape that can be arranged in a groove provided on the surface of a core material along the same. In order to fixedly install such a band-shaped fastener member at a desired position on the surface of the core material in a state where the engagement element is exposed, the fastener member is arranged as an insert in a mold of the core material that is a main body of molding, An insert molding method for fixing the fastener member to the core at the same time as the molding of the core is advantageously implemented. For example, Japanese Patent No. 2704859 discloses a guide for supporting a fastener member in a mold mainly formed by such an insert molding method. The guide includes a groove for accommodating the fastener member, and an isolation member inserted between a plurality of engagement elements of the fastener member is provided near both ends of the groove. The isolation member is for preventing the liquid foaming material from entering the inside of the groove at the time of molding the core material.

[0004]

Problems to be Solved by the Invention Patent No. 2704859
In the guide disclosed in Japanese Patent Laid-Open Publication No. H10-27095, since the isolation member that prevents the liquid material from entering the groove portion is configured to be inserted between the plurality of engagement elements of the fastener member,
The isolation member is necessarily formed thin. Therefore, even if the base of the fastener member attached to the guide is slightly deformed, a gap is formed between the isolation member and the base of the fastener member, and there is a concern that the sealing effect on the liquid material is reduced. If the molding main body is molded in a state in which the liquid material has penetrated into the groove of the guide, a resin piece of the molding main body is intermingled between the plurality of engaging elements of the fastener member, and thereby the original fixing of the fastener member There is a risk that the function will deteriorate. Furthermore, there is a concern that the engagement element of the fastener member may be damaged by the insertion of the isolation member. Attachment of the fastener member to the guide while avoiding such damage is generally difficult and requires skill.

When the main body is formed using the above-described guide, a concave portion having a shape corresponding to the outer shape of the guide is formed on the surface of the main body, and the fastener member is fixed in the concave portion. That is, the recess has a bottom wall formed corresponding to the upper end surface of the guide and two sets of opposed side walls formed corresponding to the outer end surface of the guide. When detaching the fastener from the guide by moving the mold when removing the mold from the mold and the guide, usually, a stress that separates the bottom wall and the opposing side wall of the recess of the mold from each other, They are concentrated at the intersection of the walls, that is, at the corners. Such stress concentration may cause damage such as cracks at both intersections between the bottom wall of the concave portion and a pair of opposed side walls corresponding to the transverse direction of the guide. This problem of stress concentration also occurs during use after product completion.

As described above, it is difficult for the guide described in Japanese Patent No. 2704859 to prevent damage due to stress concentration in the concave portion of the molding main body. It is also disclosed that the fastener member is supported by protruding outside from both ends in the longitudinal direction of the guide, but in this case, the protruding portion of the fastener member is bent during molding,
There is a tendency that the concave portion of the molding main body is arranged so as to be shifted from the direction of the stress concentrated at the intersection of the bottom wall and the opposing side wall. Therefore, it is also difficult to prevent the damage due to the stress concentration in the concave portion of the molding main body.

SUMMARY OF THE INVENTION An object of the present invention is to provide a guide used in an insert molding process for integrally attaching a fastener member to a molding main body. It is an object of the present invention to provide a guide that can reliably prevent liquid material from entering a receiving portion containing a joining element and that can be easily removed after molding without damaging a molding main body.

Another object of the present invention is to provide a molded article in which a fastener member is integrally attached to a molding main body, wherein the molded article can effectively prevent damage such as a crack in a concave portion of the molding main body to which the fastener member is fixed. To provide.

[0009]

In order to achieve the above object, according to the first aspect of the present invention, a fastener member having an engaging element provided on one surface of a base is integrally attached to a molding body. In the guide installed in the main mold, a pair of side walls defining a base capable of accommodating the base and the engaging element of the fastener member, and between the side walls, both end regions in the extension direction of the reception section. Provided with a sealing portion, wherein the sealing portion has a sealing surface that can be in close contact with the base of the fastener member between the pair of side wall portions, and the sealing surface is directed toward both ends in the extension direction of the receiving portion. A guide having a shape that substantially reduces the depth of the receiving portion.

Further, according to a second aspect of the present invention, the guide member according to the first aspect is used in which a fastener member having an engaging element provided on one surface of the base is formed as a molding main body with the engaging element exposed. In a molded article integrally attached with the fastener, the fastener member is disposed in the concave portion formed in the molding main body, and both end regions in the longitudinal direction of the base are formed at the intersections between the bottom wall and the opposing side wall of the concave portion. The molded article is characterized in that one side of the molded article is bent to be convex.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In the drawings, the same or similar components are denoted by common reference numerals. Figure 1
FIG. 3 shows a guide 10 and a fastener member 12 supported by the guide 10 according to an embodiment of the present invention. The fastener member 12 is a flexible face-to-face engagement type fastener member capable of following the three-dimensional surface of the main body of the molding, and has a band-shaped base 14 and one surface 16 of the base 14 as described later.
And a plurality of engaging elements 18 erected at predetermined intervals.

The guide 10 is a rod-shaped block for supporting the fastener member 12 over a desired length. The guide 10 has a linear groove-shaped receiving portion 20 capable of accommodating the base portion 14 of the fastener member 12 and a plurality of engaging elements 18. A pair of side walls 22 to be defined
And a bottom 24. The pair of side wall portions 22 includes a bottom portion 24.
Are arranged parallel to and separated from each other with the side walls 22 therebetween.
In addition, side surfaces 22a opposed to each other are formed at uniform intervals over the entire length of the guide 10. The bottom portion 24 includes a pair of sealing portions 26 provided at both end regions in the extending direction of the receiving portion 20 between the side wall portions 22 and a pair of sealing portions 26 extending in the longitudinal direction of the guide 10 adjacent to the both side wall portions 22 respectively. And a groove portion 30 that forms a part of the receiving portion 20 is formed between the sealing portion 26 and the auxiliary support portion 28. Therefore, the bottom portion 24 is provided with the side surfaces 22 of the side wall portions 22.
A stepped bottom surface 24a substantially orthogonal to a is formed.

The distance between the side surfaces 22a of the pair of side walls 22 is
The base member 14 of the fastener member 12 to be supported is formed to have substantially the same transverse dimension as the base part. Therefore, the side surface 22 a of each side wall portion 22 is connected to the fastener member 1 received by the receiving portion 20.
The second base portion 14 is in close contact with a longitudinally extending side edge. The plurality of engagement elements 18 of the fastener member 12 are accommodated in the groove 30 that forms a part of the receiving portion 20. The bottom surface 24a of the bottom portion 24 is connected to the fastener member 12 received by the receiving portion 20 in each of the sealing portion 26 and the auxiliary support portion 28.
Abuts on a portion of one surface 16 of the base 14. In this manner, the fastener member 12 has the base portion 14 fitted into the receiving portion 20 of the guide 10 and is held in a predetermined posture by the frictional force.

The pair of sealing portions 26 provided on the bottom portion 24 of the guide 10 each have a sealing surface 26a. The sealing surfaces 26a extend concavely toward both ends in the extension direction of the receiving portion 20 so as to substantially gradually reduce the depth of the receiving portion 20. Each sealing surface 26 a is in close contact with at least a portion of one surface 16 of base 14 of fastener member 12 received in receiving portion 20. As a result, as described later, when the forming main body is formed in a state where the fastener member 12 is supported by the guide 10, the infiltration of the molten material into the groove 30 is prevented. Preferably, the sealing surface 26 of each sealing portion 26
a is smoothly connected to the upper surfaces of the pair of auxiliary support portions 28 without any step.

The guide 10 having the above structure is integrally formed by cutting a metal rod-shaped material such as aluminum, an aluminum alloy, and iron. In this case, the receiving portion 20 can be cut in accordance with a predetermined program by, for example, a tea throw cutter mounted on an NC milling machine. However, the guide 10 is not limited to this and can be manufactured by various other known methods. Also,
The guide 10 is made of a rubber-based material or a plastic material.
It can also be produced by various molding methods.

In the illustrated embodiment, a pair of auxiliary supporting portions 28 provided on the bottom 24 of the guide 10 are formed continuously in the longitudinal direction. The depth of the groove portion 30 defined in the receiving portion 20 by the auxiliary support portion 28 is set to be greater than the length of the plurality of engagement elements 18 of the fastener member 12 protruding from the base portion 12. According to this configuration, when the fastener member 12 is accommodated in the receiving portion 20, each auxiliary support portion 28 prevents the plurality of engagement elements 18 from contacting the bottom surface 24 a in the groove portion 30 while the fastener member 12 is accommodated.
The base 14 is securely supported in a desired posture, and is continuously in close contact with one surface 16 of the base 14 in the longitudinal direction of the base 14, so that the infiltration of the molten material of the forming main body into the groove 30 is more effectively prevented. be able to. In addition, from the viewpoint of supporting the base portion 14 of the fastener member 12 in a desired posture, the auxiliary support portions 28 may be configured to be dispersedly arranged at desired positions at intervals in the longitudinal direction of the guide 10. Alternatively, if such support of the base 14 is not necessary,
The auxiliary support 28 may be omitted.

The fastener member 12 as an example supported by the guide 10 has a plurality of box-shaped portions 32 whose strip-shaped bases 14 are arranged to be spaced apart from each other in the longitudinal direction, and the box-shaped portions 32 are mutually connected. And a plurality of connecting portions 34 that are integrally connected to the vehicle. Each box-shaped portion 32 includes a flat upper plate portion 36 and a lower plate portion 38 extending substantially parallel to each other,
And a pair of side plate portions 39 connecting them to each other. The upper plate portion 36 of the plurality of box-shaped portions 32 constitutes one surface 16 of the base portion 14 on which the plurality of engagement elements 18 are arranged, and the lower plate portion 38 of the plurality of box-shaped portions 32 includes a plurality of connecting portions. Together with 34, the other surface 40 of the base 14 is constituted. Upper plate portion 36, lower plate portion 38, and both side plate portions 39 of each box-shaped portion 32
A vertical plate portion 42 extending in the longitudinal direction is provided therebetween.
The plate portions 36, 38, 39, 42 define a pair of cavities 44 in each box 32.

Each of the plurality of engagement elements 18 is
A leg 46 projecting substantially upright from the upper plate portion 36;
And a plurality of engaging pieces 48 protruding laterally near the distal ends of the legs 46. Therefore, in the fastener member 12,
The plurality of engagement elements 18 engage with corresponding engagement elements of the engagement partner member at the engagement pieces 48 at the respective distal ends. In addition,
No engagement elements 18 are formed in the box-shaped portions 32 ′ at both ends in the longitudinal direction of the base portion 14.

A slit 50 extending in the transverse direction is formed in the lower plate portion 38 of each box 32 at substantially the center in the longitudinal direction. Further, a rib 52 extending in the longitudinal direction across the slit 50 is provided on the lower plate portion 38 so as to protrude from the other surface 40 over the entire base portion 14. Each of the ribs 52 has a
Two thin plate-like anchors 54 extending substantially parallel to the lower plate portion 38 are formed. The ribs 52 and the anchors 54 are connection elements embedded in the molding main body through an insert molding process described later, and constitute a mechanical connection portion of the fastener member 12 to the molding main body.

The fastener member 1 having such a configuration
2, the base 14 can be bent relatively easily in the horizontal direction, that is, in a direction parallel to the one surface 16 as a whole, by the stress dispersing action of the cavity 44 of each box-shaped portion 32. Further, by the hinge action of each thin connecting portion 34, the base portion 14 can be relatively easily flexed as a whole in the vertical direction, that is, the direction orthogonal to the one surface 16. As described above, the fastener member 12 can easily bend the base portion 14 in both the horizontal direction and the vertical direction, so that the base portion 14 can be three-dimensionally accurately positioned on a desired surface portion of an object having various three-dimensional surfaces. Can be installed to follow. Therefore, the guide 10 can also have various bending shapes to support the fastener member 12 in a desired three-dimensional bending shape. Preferably, the fastener member 12 is integrally formed from a resin material such as nylon, polyester, or polypropylene.

The guide 10 supports the fastener member 12 having the above configuration in a predetermined posture. At this time, as shown in FIG. 2, the box-shaped portions 32 ′ at both ends in the longitudinal direction of the base portion 14 of the fastener member 12 are in a state where the connecting portion 34 between the adjacent box-shaped portions 32 is elastically bent. The guide 10 is placed on each of the pair of sealing portions 26, and protrudes outward from both ends in the longitudinal direction of the guide 10 and is supported. Here, each box 32 'is not provided with an engaging element 18 as described above so that the upper plate portion 36 of each box 32' can be easily mounted on each sealing portion 26. . The other box-shaped portion 32 of the base 14 of the fastener member 12 is fitted into the receiving portion 20 by inserting the engaging element 18 into the groove 30 of the guide 10.

In this state, each of the box-shaped portions 32 ′ at both ends in the longitudinal direction of the fastener member 12 has a frictional force between the upper plate portion 36 and the lower plate portion 38 and the side wall portions 22 of the guide 10.
In addition, due to the elastic restoring force of the connecting portion 34 between the adjacent box-shaped portion 32, the surface of the upper plate portion 36, that is, one surface 16 of the base portion 14 has a concavely curved sealing surface 26a of each sealing portion 26.
And the groove 30 can be sealed. Further, the guide 1 of the base 14 of the fastener member 12 is provided.
In the portion accommodated in the receiving portion 20 of each box-shaped portion 32, both edges of each of the upper plate portion 36, the lower plate portion 38, and both side plate portions 39 of each box-shaped portion 32, and a connecting portion 34 connecting each box-shaped portion 32. Are in close contact with the side surfaces 22a of the side walls 22 of the guide 10. In this manner, the guide 10 can maintain the base 14 of the fastener member 12 in a predetermined posture while ensuring the liquid tightness of the groove 30.

In the guide 10, the side surface 22 of each side wall 22
a from the upper surface of each of the adjacent auxiliary support portions 28 is:
The thickness of the base portion 14 of the fastener member 12, that is, one surface 16
It is desirable that the distance be the same as or slightly greater than the distance between the other surface 40. According to this configuration, the base 14 of the fastener member 12 is
That is, it can be easily confirmed visually or tactilely that the one surface 16 of the base portion 14 is fitted in a state of being in contact with the upper surfaces of the pair of auxiliary support portions 28. However, if the side surface 22a of each side wall portion 22 of the guide 10 protrudes too much from the other surface 40 of the base portion 14 of the fastener member 12, there is a concern that the smooth flow of the molten material is hindered during molding of a molding main body described later. Therefore, the difference between the height of the side surface 22a of each side wall portion 22 of the guide 10 and the thickness of the base portion 14 of the fastener member 12 is preferably about 1 mm.

Further, in the guide 10 of the illustrated embodiment, a pair of guide portions 56 extending in the height direction of the side surface 22a are provided along desired length portions at both ends in the longitudinal direction of each side wall portion 22. The guide portions 56 are provided on the side surface 2 of each side wall portion 22.
A taper surface 56a is provided on the side adjacent to 2a. When fitting the fastener member 12 to the receiving portion 20 of the guide 10,
Each guide portion 56 guides the base portion 14 of the fastener member 12 to the receiving portion 20 by the action of the tapered surface 56a, thereby facilitating the fitting of the fastener member 12.

FIG. 4 shows a molded article 62 in which the fastener member 12 is integrally attached to a molding main body 60 by an insert molding process using the guide 10 described above. The molding main body 60 of the molded article 62 constitutes, for example, a core material of a vehicle seat. At the time of the insert molding process, the fastener member 12 is mounted on the guide 10 in the form shown in FIG. The molded article 62 produced in this manner is provided with a concave portion 64 in which the fastener member 12 is fixedly arranged at a predetermined position on the surface of the molding main body 60. The concave portion 64 corresponds to a space occupied by the guide 10 when the molding main body 60 is formed, and includes a bottom wall 66 formed corresponding to an upper end surface of both side wall portions 22 of the guide 10 and a side wall portion of the guide 10. Opposing side walls 6 formed corresponding to both longitudinal end surfaces of the base 22 and the bottom 24
8 is provided.

The fastener member 12 has a plurality of engaging elements 18 formed on one surface 16 of the base 14 exposed in a recess 64, and a rib 52 and a plurality of anchors 54 formed on the other surface 40. Embedded in the molding body 60.
Further, the fastener member 12 has the box-shaped portions 32 ′ at both ends in the longitudinal direction of the base portion 14 in a state where the connecting portion 34 between the adjacent box-shaped portions 32 is bent so that the one surface 16 side of the base portion 14 is convex.
It is at least partially embedded in the molding body 60. At this time, due to the relative positional relationship between the two sealing portions 26 of the guide 10 and the two box-shaped portions 32 ′ of the fastener member 12, the two box-shaped portions 32 ′ are in contact with the bottom wall 66 of the concave portion 64 of the molding main body 60. It is buried in the forming main body 60 so as to bite into the intersection with the opposing side wall 68, that is, into the corner.

As described above, the fastener member 12 obliquely cuts into both intersections of the bottom wall 66 and the opposing side wall 68 of the concave portion 64 of the molding main body 60 at both ends in the longitudinal direction. Is reinforced. That is, for example, when the mold and the guide 10 are detached from the molded article 62, the molding body 60 is moved to
When trying to remove 2 from guide 10, stress that normally separates bottom wall 66 and opposite side wall 68 of concave portion 64 of forming main body 60 from each other is concentrated on the intersection of walls 66 and 68. However, in the molded article 62,
Since the fastener member 12 is fixed at both ends in the longitudinal direction in a direction substantially corresponding to a crack that may be generated due to stress concentration between the bottom wall 66 and the opposing side wall 68 of the concave portion 64 of the molding main body 60, The walls 66, 68 are reinforced against such stress concentration, and the intersections thereof are effectively prevented from being damaged such as cracks. Such a reinforcing action by the longitudinal end portions of the fastener member 12 exerts a special effect even during use of the molded article 62 as a finished product.

Next, the molded article 6 is
2 will be described. First, the guide 10 is fixed to the molding surface of the mold using a fixing means such as putty with the receiving portion 20 facing the cavity of the mold (not shown) of the molding main body 60. It should be noted that other known means such as a bolt and a magnet can be used as the fixing means. In particular, the configuration in which the guide 10 is fixed to the mold using magnetic means has the advantage that the following mounting work of the fastener member 12 can be performed outside the mold.

Subsequently, the fastener member 12 is formed such that the base portion 14 is formed of a plurality of box-shaped portions 32, an upper plate portion 36 and a lower plate portion 38.
And the side surfaces 22a of the pair of side wall portions 22 of the guide 10 at both edges of each of the side plate portions 39 and the plurality of connecting portions 34.
So that the one surface 16 of the base portion 14 in the box-shaped portions 32 ′ at both ends in the longitudinal direction is in close contact with the sealing surfaces 26 a of the pair of sealing portions 26 of the guide 10 to seal the groove 30. Attach to 10 receiving sections 20. At this time, the plurality of engagement elements 18 of the fastener member 12 are accommodated in the groove 30 of the receiving portion 20 of the guide 10. Further, the box-shaped portions 32 ′ at both ends in the longitudinal direction are placed on the sealing portion 26 in a state where the connecting portion 34 between the adjacent box-shaped portions 32 has the one surface 16 side of the base 14 bent in a convex shape. Is done. Here, the box-shaped part 3
Since the engagement element 18 is not provided on 2 ', the box-shaped portion 32' can be relatively easily mounted while allowing a slight displacement with respect to the sealing portion 26.

In this state, the mold is heated and maintained at a predetermined temperature, and then a molten resin material (for example, a foamable liquid resin material such as polyurethane) of the molding main body 60 is supplied to a gap in the mold. At this time, the pair of side wall portions 22 and the pair of sealing portions 26 of the guide 10 are
Cooperates with the base 14 of the guide 10 to prevent the molten resin material from entering the groove 30 of the guide 10. The fastener member 12 is held on the guide 10 in a predetermined posture until the molten resin material solidifies. Further, the molten resin material is provided on the other surface 40 of the fastener member 12 without obstructing the smooth flow by the side walls 22 of the guide 10.
Around the ribs 52 and the plurality of anchor portions 54, and further through the plurality of slits 50
It efficiently flows into the 2 ′ cavity 44. That is, in the cavities 44 of the box-shaped portions 32 and 32 ', the replacement of the air with the molten resin material is performed smoothly.

Thereafter, the mold is cooled to solidify the molten resin material, and the molding main body 60 is formed. As a result, as described above, the fastener member 12 is fixedly connected to a desired position on the surface of the molding main body 60 with the plurality of engagement elements 18 exposed. After the molding of the molding main body 60, the resin pieces of the molding main body 60 are not mixed between the plurality of engagement elements 18 of the fastener member 12, so that the original fixing function of the fastener member 12 does not decrease. In addition, in the portion of the molding body 60 surrounding the rib 52 and the plurality of anchor portions 54 on the other surface 40 of the fastener member 12, defects such as nests are less likely to occur due to the efficient flow of the molten resin material during molding. Thereby, the fastener member 12 is firmly connected to the molding main body 60.

Next, the fastener member 12 is detached from the guide 10 while moving and deforming the molding main body 60, and the molded article 62 is taken out of the mold. At this time, as described above, the fastener member 12 has the bottom wall 66 and the opposing side wall 68 of the concave portion 64 of the molding main body 60 at both ends in the longitudinal direction.
Since the walls 66 and 68 are reinforced diagonally at the intersections of the two, the fastener member 12 can be easily detached from the guide 10. Along with this, the stress applied by the anchor portion 54 of the fastener member 12 to the forming main body 60 at the time of detachment from the guide 10 also decreases. Therefore, the molded article 62 can be easily removed from the mold and the guide 10 without damaging the molding main body 60.

By the way, the guide 10 having the above configuration
Can also support the fastener member 12 extended further out of the receiving portion 20. In this case, for example, as shown in FIG.
Box-shaped portion 32 ″ adjacent to the box-shaped portion 32 at both ends in the longitudinal direction
(Only one box-shaped portion 32 "is shown) is formed without the engagement element 18. According to such a configuration, the base 14 of the fastener member 12 is attached to the molding main body 60 of the molded article 62.
The box-like portions 32 at both ends in the longitudinal direction include the engaging element 18 and the connecting elements 52 and 54 as a whole, and are buried in the molding main body 60 to perform the connecting function. As a result, the joining between the fastener member 12 and the molding main body 60 is further strengthened. Moreover, in this case, even if the box-like portions 32 at both ends in the longitudinal direction of the fastener member 12 are bent during molding, the adjacent box-like portions 3
2 "surely reinforces the concave portion 64 as described above. Needless to say, also in this configuration, the engaging elements 18 of the box-shaped portions 32 at both ends in the longitudinal direction can be omitted.

Further, according to the guide 10, as long as a desired sealing action is obtained between the sealing surface 26a of the sealing portion 26 and the base portion 14 of the fastener member 12, the guide 10 is substantially the same as or shorter than the guide 10. It is also possible to support the long-length fastener member 12 and integrally attach it to the molding main body 60. Also in this case, a part of both ends in the longitudinal direction of the fastener member 12 protruding upward from the guide 10 is buried in the molding main body 60 to exert the above-described reinforcing effect.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to this, and various changes or modifications can be made. For example, as shown in FIG.
0 sealing portion 26 is provided between the pair of side wall portions 22 and the receiving portion 2.
A sealing surface 26a having various surface shapes capable of substantially gradually decreasing the depth of the receiving portion 20 toward both ends in the extension direction of 0 may be provided. As an example, FIG.
Indicates a cylindrical sealing surface 26a. In this case, the radius of curvature of the sealing surface 26a is not particularly limited, but considering the flexibility of the base 14 of the general fastener member 12,
It preferably has a radius of curvature of 10 mm to 70 mm. FIG. 6B shows a sealing surface 26a formed by smoothly connecting the plane portion 26b and the curved surface portion 26c. FIG.
(C) shows the sealing surface 26a which consists of an inclined plane. Further, although not shown, a sealing surface 26 extending in a stepped or irregular shape is provided.
a. In each case, guide 10
The length of the sealing surface 26a along the longitudinal direction is 10 mm to 5 mm.
It is preferably 0 mm.

As shown in FIG. 7, the guide portions 56 provided on the pair of side wall portions 22 of the guide 10 are spaced apart from each other in the longitudinal direction of each side wall portion 22 (two in the figure).
6 can also be formed. However, in this case, as described above, it is required to provide the molten resin material of the molding main body 60 so as not to hinder the smooth flow.

Further, as the fastener member to which the guide 10 can be applied, a fastener member having a configuration other than the above-described fastener member 12 can be applied as long as at least the base has flexibility. For example, JP-A-9-224
A molded article can also be manufactured by applying the fastener member disclosed in Japanese Patent Laid-Open No. 720, JP-A-8-140713, etc. to the guide according to the present invention.

The features of the preferred embodiment of the present invention will be summarized and listed below. The pair of side wall portions of the guide have side surfaces facing each other at a uniform interval over the entire length of the guide. The side surfaces can be brought into close contact with both edges of the base of the fastener member. A pair of auxiliary support portions extending in the longitudinal direction of the guide may be further provided adjacent to both side walls of the guide. The auxiliary supports cooperate with the seal to form, in the receptacle, a groove in which the engagement element of the fastener member can be accommodated. In this case, it is preferable that the upper surface of each auxiliary support portion is smoothly connected to the sealing surface of each sealing portion without any step. It is preferable that the height of the side surface of each side wall portion from the upper surface of each adjacent auxiliary support portion is equal to or slightly larger than the thickness of the base portion of the fastener member to be supported. A guide portion extending in the height direction of the side surface can be provided along a desired length portion of each side wall portion. The guide portion may have a tapered surface on a side adjacent to the side surface of each side wall portion.

[0039]

As is apparent from the above description, according to the present invention, in a guide used in an insert molding process for integrally attaching a fastener member to a molding main body, the fastener member is easily attached to the guide. can do. Further, at the time of molding of the molding main body, it is possible to reliably prevent the liquid material from entering the receiving portion of the guide accommodating the engaging element of the fastener member. Moreover, after the molding, the molding can be easily removed from the guide without damaging the main body. Further, according to the present invention, in a molded article in which a fastener member is integrally attached to a molding main body, it is possible to effectively prevent damage such as a crack in a concave portion of the molding main body to which the fastener member is fixed.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a guide according to an embodiment of the present invention together with a fastener member to be supported.

2 is a view showing the guide of FIG. 1 with a fastener member mounted, and is a longitudinal sectional view taken along line II-II of FIG. 3;

3 is a view showing the guide of FIG. 1 in a state where a fastener member is mounted, and is a longitudinal sectional view along a line III-III in FIG. 2;

4 is a longitudinal sectional view showing a main part of a molded article obtained by integrally attaching a fastener member to a molding main body using the guide of FIG.

FIG. 5 is a view showing another use mode of the guide of FIG. 1;
It is a longitudinal sectional view corresponding to FIG.

6 (a) to 6 (c) are partial enlarged longitudinal sectional views showing some modified examples of the sealing surface of the sealing portion in the guide of FIG. 1;

FIG. 7 is a partial front view showing a modification of the guide portion of the side wall portion in the guide of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Guide 12 ... Fastener member 14 ... Base 16 ... One surface 18 ... Engagement element 20 ... Reception part 22 ... Side wall part 22a ... Side surface 26 ... Sealing part 26a ... Sealing surface 28 ... Auxiliary support part 30 ... Groove parts 32, 32 ', 32' ... box-shaped part 34 ... connecting part 40 ... other surface 52 ... rib 54 ... anchor part 60 ... molding main body 62 ... molded article 64 ... concave part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3B100 DA06 DB05 DB08 4F202 AA42 AD24 AG20 AH26 CA01 CB01 CB12 CQ05

Claims (2)

[Claims] 1. A guide installed in a mold of a molding main body for integrally attaching a fastener member having an engaging element provided on one surface of a base to a molding main body, wherein the base of the fastener member and the engagement member are provided. A pair of side walls defining a receiving portion capable of accommodating the joining element, and sealing portions provided between the side wall portions at both end regions in the extending direction of the receiving portion; A sealing surface that can be in intimate contact with the base of the fastener member between the side walls of the fastener member, the sealing surface substantially gradually decreasing the depth of the receiving portion toward both ends in the extending direction of the receiving portion. A guide having a shape that allows the guide to be formed. 2. A fastener member having an engaging element provided on one surface of a base portion and integrally attached to a molding main body with the engaging element exposed, using the guide according to claim 1. In the molded article, the fastener member is arranged in a concave portion formed in the molding main body, and both end regions in the longitudinal direction of the base portion are formed at the intersections between the bottom wall and the opposing side wall of the concave portion. A molded article characterized by being arranged so that one surface side is bent to be convex.