JPH10318221A - Engaging member having coupling element to support body and additionally attaching member having the engaging member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engaging member to reliably prevent deformation of a base part during formation of an insert without lowering the injection pressure of a molding material of a support body. SOLUTION: An engaging member 10 comprises a plurality of engaging elements 18 erected on the main surface 12 of a base part 16; and a coupling element 20 arranged on the back side of the base part 16. The coupling element 20 comprises a dovetail protrusion 30 arranged approximately at the central part of a base part back 14; and outer walls 34 arranged along a pair of first edges 22 of a base part 16 and partitioning dovetail grooves 32 on both sides in a traverse direction of the protrusion 30. The outer walls 34 have respective out inclination sides 46 extending in a direction, separated from a main surface 12, from a first end 48 adjoining with the first edge 22 of the base part 16 to a second end 50 arranged closer to a back center than the first end 48 extending in a direction parting from the main surface 12. The out inclination side 46 receives the injection pressure of a molten high molecular material of a support in a mold during molding of an insert, and disperses the pressure in a direction in which bending of the base part 16 is suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a base having a substantially flat main surface and a back surface opposite to the main surface, an engaging element provided on the main surface of the base, and a connecting element provided on the back surface of the base. And an engaging member that is mechanically and fixedly connected to the support via the connecting element with the engaging element exposed on the surface of the support. Such an engaging member can be efficiently connected to the support by an insert molding process when, for example, the support is molded from a polymer material. The present invention further relates to an attachment member provided with such an engaging member integrally with the main body, and fixedly attached to the surface of the object for the purpose of sealing, protecting, decorating, etc.

[0002]

2. Description of the Related Art Structures such as the body of a car or motorcycle, the hull of a boat, various household appliances, and the building wall of a section where a large number of pedestrians come and go, for example, have airtight isolation between the vehicle interior and the exterior environment. Various types of attachment members made of glass, a polymer material, a metal material, and the like are attached as attachments for the purpose of protecting the surface of the structure, decorating, and the like. As used herein, the term "attachment member" refers to, for example, a window glass fixedly attached to a window frame portion of a vehicle body or a hull, a protective glass attached to an outer surface of a vehicle body panel or household equipment or It is a general term for linear, band-like and plate-like members that are directly or indirectly attached to objects as attachments, including decorative moldings, decorative plates or emblems, and the like.

[0003] In order to attach such an attachment member to an object such as the above-mentioned structure, it is known to use an engagement member provided with an engagement element capable of mechanically engaging the surface of the object. For example, Japanese Unexamined Patent Publication No. 7-42714 discloses a face-to-face engagement type fastener member (a so-called hook-and-loop fastener) having a plurality of mushroom-like engagement elements erected on a base as an engagement member. An attachment member having the fastener member fixed to a predetermined position of a main body is disclosed. Further, this publication describes a method of integrally molding a fastener member as an insert when the body of the attachment member is molded from a polymer material. The insert molding process
Since the molding of the main body of the attachment member and the fixing of the fastener member to the main body can be performed simultaneously, there is an advantage that the manufacturing process can be simplified.

[0004] Further, Japanese Patent Application No. Hei 8
In the specification of JP-187720, as a fastener member for insert molding, a plurality of engaging elements are provided on a main surface of a base, and a connecting element is provided on a back surface of the base. (Corresponding to the main body of the attached member), and a fastener member fixedly connected to the molding main body in a state where the engaging element is exposed on the surface of the molding main body is disclosed.

In these prior arts, when the engaging member is connected to the molding main body (attachment member main body) by an insert molding process, a concave portion for supporting the engaging member is provided in a molding space of a mold of the molding main body. With the engagement element of the engagement member inserted into the recess and the coupling element exposed in the molding space, the engagement member is arranged in the mold. At this time, the base peripheral region of the engagement member is brought into close contact with the wall surface of the concave portion to prevent the molten polymer material from entering the base main surface side. In this state, when the molten polymer material is injected into the molding space and the molding main body is molded, the engaging member is fixedly connected to the molding main body via the connection element.

[0006]

A conventionally known face-to-face engagement type fastener member has a smaller thickness (generally about several mm) than the length of the engagement element protruding from the base, so that the base is warped or bent. Tend to occur. These trends are
Not only a fastener member having a plurality of engagement elements but also an engagement member generally called a clip member having one elastic engagement element protruding from a main surface of a base typically. When the engaging member having such a flexible base is insert-molded into the main body of the attachment member as described above, the injection pressure (generally tens of millions Pa) of the molten polymer material of the main body into the mold is received. Thus, the base may bend during molding. In particular, when the connecting element is arranged along the edge of the base in order to prevent the base peripheral edge of the engaging member from rolling up from the main body of the attachment member after insert molding,
As described below, the bending tends to be remarkable.

FIG. 14 shows an example of a bending phenomenon of the base of the engaging member during insert molding. In the engaging member 3 supported by the concave portion 2 of the mold 1, the connecting element 5 provided on the back surface side of the base portion 4 extends substantially orthogonal to the base main surface 7 adjacent to both edges 6 of the base portion 4. On the side surface 8, the molten polymer material M mainly composed of
, The base 4 bends in a direction to bring both edges 6 closer to each other. In this case, as shown in the figure, since the bending occurs convexly on the main surface 7 side of the base 4, the engaging element 9 inserted into the concave portion 2 of the mold 1 is pressed against the wall surface of the concave portion and deformed, thereby completing the insert molding. There is a problem that an attachment member having a deformed engagement element 9 having poor engagement ability is manufactured later. Even if the deformation of the engagement element 9 is avoided, a predetermined gap cannot be formed between the adjacent engagement elements 9 in a state where the base 4 is bent, so that the engagement ability is also inferior.

In order to avoid such a problem, it is conceivable to reduce the injection pressure of the molten polymer material or increase the thickness of the base. However, when the injection pressure of the molten polymer material is reduced, sinkage occurs in the molding main body or the attached member main body due to insufficient filling or local shrinkage, impairing its appearance, and supporting the engaging member by the attached member main body. There is a fear that the power will be reduced. Further, when the thickness of the base is increased, the total thickness of the attachment member at the portion supporting the engagement member is increased, and there is a fear that the appearance and function of the attachment member itself may be impaired.

For example, when the attachment member is a fixed window glass of an automobile, a window molding made of resin is generally fixed to a peripheral region of the window glass, and an engaging member is fixed to a predetermined position of the window molding, so that the window glass is fixed. Is fixedly attached to the window frame via the window molding and the engaging member. At this time, if the thickness of the base of the engaging member increases, the thickness of the window molding increases accordingly, and the window glass rises from the vehicle body panel around the window frame portion, and for example, the flash surface of the outer surface of the vehicle body is hindered. Can be Therefore, it is not preferable to absorb the thickness of the window molding at the window molding attachment portion of the window frame because the interior space of the vehicle is narrowed.

An object of the present invention is to provide an engaging member provided with a connecting element which can be fixedly connected to a support such as a main body of an attaching member by an insert molding process, thereby reducing a material injection pressure at the time of forming the support. An object of the present invention is to provide an engaging member that can surely prevent deformation of the base and the engaging element during insert molding without being reduced to such an extent that the deformation occurs and without unnecessarily increasing the thickness of the base of the engaging member. . A further object of the present invention is to provide an attachment member in which such an engagement member is integrally provided in a main body.

[0011]

In order to achieve the above object, the present invention according to claim 1 comprises a base having a substantially flat main surface and a back surface opposite to the main surface; An engaging element provided, and a connecting element provided on the back side of the base, mechanically and fixedly connected to the support via the connecting element with the engaging element exposed on the surface of the support. In the engagement member adapted to be engaged, the coupling element moves away from the main surface from a first end adjacent the outermost edge of the base to a second end located near the center of the back surface with respect to the first end. An engaging member comprising an outwardly sloping side surface that extends substantially obliquely in a direction.

According to a second aspect of the present invention, in the engagement member according to the first aspect, the outwardly inclined side surface of the connecting element is
An engagement member is provided at a position substantially annularly surrounding the coupling element.

According to a third aspect of the present invention, in the engagement member according to the first or second aspect, the base has a portion extending outside the first end of the outwardly inclined side surface of the connecting element, An engaging member provided with a through hole substantially orthogonal to the main surface in this portion is provided.

According to a fourth aspect of the present invention, there is provided a main body, at least a portion of which is formed of a polymer molded body, and an engaging member supported by the main body using the polymer molded body as a support. An attachment member fixedly attached to the surface of another object via an engagement element, wherein the engagement member comprises the engagement member according to any one of claims 1 to 3. provide.

According to a fifth aspect of the present invention, there is provided the attachment member according to the fourth aspect, wherein the main body includes a base material supporting the polymer molded body.

[0016]

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 and 2 show an engagement member 10 according to an embodiment of the present invention.
Is shown. The engaging member 10 is a fastener member of a face-to-face engagement type made of an integrally molded product of a resin material. The engaging member 10 has a base 16 having a substantially flat main surface 12 and a back surface 14 on the opposite side, and a predetermined surface. And a connecting element 20 provided on the back surface side of the base 16.

The base 16 has a substantially rectangular planar shape, and has a pair of first edges 2 extending linearly in the longitudinal direction and parallel to each other.
2 and a first edge 22 which is linear in the transverse direction and parallel to each other.
A shorter second pair of second edges 24 (only one second edge 24 is shown). The plurality of engagement elements 18 are integrally formed from the same resin material as the base 16 simultaneously with the formation of the base 16 in the step of forming the engagement member 10. Each engaging element 18 has a mushroom-like shape having a leg 26 projecting substantially upright from the main surface 12 of the base 16 and a head 28 bulging radially from the outer surface of the leg at the tip of the leg 26. It is formed as a headed stem.

As an example of an engaging member in which a plurality of such mushroom-shaped engaging elements are integrally formed on a base, there is known a member known as "Super Dual Lock" (trade name of 3M Company). . However, the engagement member according to the present invention is not limited to the specific engagement element and the structure of the base. For example, an engagement element including a plastic base and a plurality of resin monofilaments implanted in the base may be used. Hook and loop fasteners (known as "Scotch Mate" (trade name of 3M)) with hook and loop fasteners (known as "Dual Lock" (trade name of 3M)), U.S. Patent No. 4,875,259, a hook-and-loop fastener with an engaging element consisting of a group of conical or frusto-conical tangible tapering struts, a single unit with a resilient arm at the tip of the leg. A clip having an engagement element (described later) or the like can be employed.

The connecting element 20 is integrally formed from the same resin material as the base 16 simultaneously with the formation of the base 16 in the step of forming the engaging member 10. In the embodiment of FIG. 1, the connecting element 20 includes a dovetail-shaped ridge 30 extending linearly in the longitudinal direction substantially at the center of the base back surface 14, and a pair of first edges 2 of the base 16.
2 and a pair of outer walls 34 projecting from the back surface 14 along both sides of the ridge 30 and defining dovetail grooves 32 on both sides in the transverse direction. Alternatively, the protrusions 30 and the end surfaces 30a, 3
4a is defined as the back surface of the base, the connecting element 20
6 can be described as having two grooves 32 recessed in the base rear surface so as to extend in parallel with each other in the longitudinal direction.

In the connecting element 20, substantially the entirety of the ridges 30 and the outer wall 34 is embedded in the support, which is the main body of the molding, and the molten polymer material of the support enters the groove 32 by an insert molding step described later. Thereby, the engagement member 10 is mechanically and fixedly connected to the support with the plurality of engagement elements 18 exposed on the surface of the support. Ridge 30 and groove 32
The dovetail shape is effective for improving the connecting force of the connecting element 20, but the connecting element 20 can adopt any other shape capable of fixing the engaging member 10 to the support.

For example, as shown in FIG. 3 (the engaging elements are not shown), (a) a dovetail groove 36 extending in the longitudinal direction of the base and two (B) one or more through holes 40 penetrating the base in the longitudinal direction instead of the dovetail groove, (c) a groove 42 having a desired shape other than the dovetail shape And the like having both the through hole 44 and the through hole 44 can be adopted as the connection element.
It is important that these through holes 40 and 44 are provided at positions where the molten polymer material of the support body sufficiently penetrates into the holes during insert molding.

In the embodiment shown in FIG. 1, the grooves 32 are opened at both ends in the longitudinal direction of the base 16 as shown in FIG.
Although it is desirable because it facilitates the flow into the material 2, a groove closed at both ends, a groove extending intermittently on the base rear surface 14, or the like can be employed provided that the material flow is not hindered.
Also, instead of grooves and through holes extending in the longitudinal direction of the base,
Grooves or through holes extending in the transverse direction may be employed.
Further, when the adhesiveness between the material of the engaging member and the material of the support is good (for example, when the material is made of the same polymer material), the connecting element is not provided with a dovetail-shaped groove or a simple ridge having a through hole. It can be. For such a connecting element, it is also effective to apply an adhesive which is activated at the temperature of the molten polymer material at the time of insert molding, such as a hot melt adhesive or a heat-sensitive adhesive, to the surface thereof in advance. .

When the engaging member according to the present invention is connected to a support which is a molding main body by an insert molding process,
A means for preventing deformation of the base and the engaging element due to the injection pressure of the molten polymer material of the support is provided.
This means, in the embodiment of FIGS.
It comprises an outwardly inclined side surface 46 provided on a pair of 0 outer walls 34. These outwardly inclined side surfaces 46 are formed by the first
From a first end 48 adjacent to the rim 22, a second end 50 disposed on the base 16 near the center of the back surface 14 with respect to the first end 48.
And extends obliquely in a direction away from the main surface 12.

The operation of the outwardly inclined side surface 46 of the connecting element 20 will be described with reference to FIG. When insert-molding the engaging member 10 into the support which is the main body of molding, first, the plurality of engaging elements 18 of the engaging member 10 are inserted into the concave portions 56 provided in the molding space 54 of the mold 52 of the support. At the same time, with the connecting element 20 exposed in the molding space 54, the engaging member 1
0 is placed in the mold 52. When the molten polymer material is injected into the molding space 54 in this state, the molten polymer material of the support flowing into the periphery of the connecting element 20 flows along the outwardly inclined side surfaces 46 as shown by arrows in FIG. As a result, the component force P of the material injection pressure acting to press the first edges 22 of the base 16 in the mutually approaching direction is reduced. FIG. 4
As shown by the arrow in (b), even in the step of maintaining the injection pressure after the completion of the material injection, the injection pressure acting perpendicularly to the outwardly inclined side surface 46 presses both first edges 22 of the base 16 in the mutually approaching direction. And the component force P ′ for pressing the base 16 against the mold 52.

On the other hand, as shown in FIGS. 4 (c) and 14, the connecting element 5 has a side surface 8 which does not have an outwardly inclined side surface and has a side surface 8 which is substantially perpendicular to the base main surface 7; All of the injection pressure acting on the base 8 is a force that presses the both edges 6 of the base 4 in the direction of approaching each other and flexes the base 4. Therefore, according to the engagement member 10, the base 16 due to the material injection pressure is used.
Is reduced corresponding to the decrease in the component force P that presses both first edges 22 of the base 16 in the mutually approaching direction as compared with the same amount of deflection β of the base 4 in the prior art. .

The outwardly inclined side surface 46 of the connecting element 20 is provided at a position along the first edge 22 of the base 16,
A similar outwardly sloping side surface can be provided at a position along the edge 24. In this case, at the time of insert molding, the base 1
6 can also reduce the component force of the material injection pressure acting to press the second edges 24 in the mutually approaching direction, so that the effect of preventing deformation of the base 16 is further improved. Therefore, it is desirable that the outwardly inclined side surface of the connecting element is provided at a position surrounding the connecting element in a substantially annular shape.

Also, the outwardly inclined side surface 46 of the connecting element 20
Is formed as a substantially flat surface. If the shape can reduce the component force of the material injection pressure for bending the base 16, FIG.
It is also possible to adopt a curved outward inclined side surface 58 as shown in (c) or a surface having smooth unevenness as a whole.
Further, the outwardly sloping side surface 46 is directly connected at its first end 48 to the first edge 22 of the base 16, but as shown in FIG. To a first end 62 of the side surface 58 and a first edge 64 of the base 60.
The base rear surface 66 may be formed between them.

As described above, according to the engaging member 10, the engaging member 1 is actuated by the outwardly inclined side surface 46 of the connecting element 20.
When insert-molding the support into the support, the molten polymer material can be injected into the molding space at a pressure sufficient to prevent sinking after the support is formed, while suppressing bending of the base 16 as much as possible. become. Therefore, the molten polymer material sufficiently spreads to every corner around the connecting element 20, and a strong connecting action of the engaging member 10 by the formed connecting element 20 is ensured. In addition, since the deformation of the engagement element 18 is prevented, the engagement ability of the engagement member 10 integrated with the support can be maintained at a high level. At this time, the engagement member 10
Since there is no need to unnecessarily increase the thickness of the base 16 of
An increase in the thickness of the support body integrally provided with the engagement member 10 is prevented, and the appearance and function of the support body itself are prevented from being impaired.

The engaging member 10 having the above-described structure is fixedly connected to a predetermined position of the main body by an insert molding process using the main body made of a polymer material of various attachment members as a support. As an embodiment of such an attachment member, a fixed window glass fixedly attached to a window frame portion of an automobile body will be described below. In order to improve the workability of an automobile assembly line, it has been widely practiced to fix a fixed window glass to a vehicle body window frame using a combination of an engaging member of the type described above and a urethane sealant. I have.

As shown in FIGS. 5 and 6, a fixed window glass 70 of an automobile has a glass plate 72 of a predetermined shape (substantially triangular in the illustrated embodiment) and an outer peripheral region of one surface of the glass plate 72. And a window molding 74 of a resin molded body that is fixed over the entire area. The engaging member 10 is fixedly connected to a predetermined position (for example, near each vertex of a triangle) of the surface of the window molding 74 that comes into contact with the vehicle body window frame by an insert molding process. Therefore, in this embodiment, the glass plate 72 and the window molding 74 constitute the main body of the attachment member, of which the window molding 74 constitutes a support for supporting the engaging member 10, and the glass plate 72 carries the support. Construct a substrate.

Next, referring to FIG.
Will be described. First, as a preparation step, a first mold 82 having a concave portion 80 for receiving and supporting the engaging member 10 is prepared at a predetermined position on a molding surface 78 defining a molding space 76 of the window molding 74. The recess 80 is provided with the engaging member 1.
A first portion for receiving the outer edge region of the base portion 16 and a second portion further recessed from the first portion for receiving the plurality of engagement elements 18 of the engagement member 10. The first portion is formed with an abutment surface 84 that abuts the outer peripheral region of the base main surface 12.

The engaging member 10 inserts the plurality of engaging elements 18 into the second portion of the recess 80, and at least partially accommodates the base 16 in the first portion, and connects the base back surface 14 and the connecting element 20 to each other. It is arranged at a predetermined position of the mold 82 while being exposed in the molding space 76. At this time, the abutment surface 84 comes into close contact with the base main surface 12 to prevent the molten polymer material from entering the second portion of the recess 80 during insert molding. Such close contact is maintained by providing appropriate static friction between the outer edge of the base 16 and the wall surface of the first portion of the recess 80, or by using an adhesive or a hook-and-loop fastener having low adhesive strength. it can.

Next, the glass plate 72 is disposed facing the molding surface 78 of the mold 82 by a predetermined distance.
Is fixedly supported by the second mold 86. Thus, a molding space 76 for the window molding 74 is defined between the surface of the glass plate 72 and the molding surface 78 of the first mold 82. The distance between the molding surface 78 of the mold 82 and the glass plate 72 is determined according to the required thickness of the window molding 74. It can also be placed in contact with the surface.

In this manner, the engagement member 10 and the glass plate 7
2 is supported in the first and second molds 82 and 86, and the molten polymer material of the window molding 74 is injected into the molding space 76. At this time, since the base main surface 12 of the engagement member 10 is in close contact with the abutment surface 84 as described above, the molten polymer material is reliably prevented from entering the second portion of the recess 80. As a result, the engagement member 10 due to the mixture of the resin pieces
This prevents the engagement function of the engagement element 18 from deteriorating. Also, as described above, the action of the outwardly inclined side surface 46 of the connecting element 20 of the engaging member 10 causes the base 16 due to the material injection pressure.
Is suppressed. Therefore, since the molten polymer material can be injected into the molding space 76 with a pressure sufficient to prevent sink after molding, the molten polymer material sufficiently flows into every corner in the groove 32 of the connecting element 20, and the strong The coupling action is ensured. The injection pressure of the molten polymer material sufficient to prevent sink after molding is from about 2 × 10 ⁷ Pa to about 8 × 10 ⁷ P
It is the range of a.

When the molten polymer material is solidified in the molding space 76 and the window molding 74 is molded, the engaging member 10 is firmly fixed to the window molding 74 via the connecting element 20. At the same time, the glass plate 72 is firmly fixed to the window molding 74. Then, the integrated engaging member 1
0, glass plate 72 and window molding 74
When it is taken out from 6, the fixed window glass 70 is obtained in which the engaging member 10 holding the base 16 substantially flat is fixed to a predetermined position of the window molding 74 with the engaging element 18 exposed.

The fixed window glass 7 thus obtained
In the case of No. 0, the base 16 of the engaging member 10 has a small deflection and the plurality of engaging elements 18 are not deformed, so that it can be fixedly attached to the window frame under a high engaging force. Moreover, at this time, it is not necessary to unnecessarily increase the thickness of the base portion 16 of the engagement member 10, so that the thickness of the window molding 74 is prevented from increasing, and the appearance and function of the fixed windowpane 70 (for example, a flash surface of the vehicle body). ) Is avoided. Further, according to the above-described insert molding step, since the engaging member 10 is fixed to the window molding 74 and the window molding 74 can be fixed to the glass plate 72 at the same time, the window molding 74 can be fixed at the work site by using the bonding means.
The work of fixing the to the glass plate 72 is omitted, and the workability is improved.

The fixed windowpane 70 having the above configuration is
As shown in FIG. 6, the vehicle body window frame portion 92 is formed by using a separate engaging member 90 having a plurality of engaging elements having a structure capable of engaging with the engaging element 18 of the engaging member 10. Fixedly mounted. The separate engagement member 90 has a plate-shaped base 94 and a plurality of erect members which are preferably provided on the base 94 with substantially the same shape and arrangement as those of the engagement element 18 of the engagement member 10. And the engagement element 96. The engaging member 90 is fixed to a predetermined position on the vehicle body window frame portion 92 corresponding to the arrangement of the engaging member 10 on the window molding 74 via, for example, an adhesive layer 98.

When attaching the fixed window glass 70 to the vehicle body window frame portion 92, first, the head of the engaging element 18 of the engaging member 10 connected to the window molding 74 is attached to the corresponding engaging member 9
0 abuts the head of the engagement element 96. With this arrangement, the glass plate 72 is pressed toward the window frame 92, and the head of each engaging element 18 of the engaging member 10 is inserted between the adjacent engaging elements 96 of the engaging member 90. At this time, both engagement elements 18, 9
6 are elastically bent and restored, and the head of one engaging element is disposed between the adjacent legs of the mating engaging element (see FIG. 6). In this state, the two engaging elements 18 and 96 are firmly engaged with each other, whereby the fixed windowpane 70 is firmly attached to the vehicle body window frame portion 92.

The engagement member according to the present invention can have various dimensions. For example, in the above embodiment, the connecting element 20 of the engaging member 10 has a depth of the groove 32, that is, a distance (projection height) from the back surface 14 of the base 16 to the tip end surface 30a of the ridge 30, for example, 0.2 mm to 8 mm, preferably 0.5 mm to 4 mm, most preferably 1.0 mm to 2.5 mm. The same applies to the distance from the base rear surface 14 to the outer wall tip surface 34a, but in order to effectively reduce the influence of the injection pressure of the molten material on the ridge 30, it is at least the same as the projection height of the ridge 30a. It is desirable. The width of the groove 32, that is, the transverse distance between the ridge 30 and the outer wall 34 is, for example, 0.7 mm to 10 mm on the base back surface 14,
It is preferably in the range of 1.5 mm to 5 mm, and
At 0a, for example, 0.5 mm to 5 mm, preferably 1 mm to 4 mm
Range. If each dimension is smaller than the above range, there is a tendency that a sufficient connection action to the support cannot be secured.
6 tends to be large.

The outwardly inclined side surface 46 of the connecting element 20 has an angle θ (FIG. 2) with respect to the main surface 12 of the base 16 of, for example, 10 ° to 80 °, preferably 30 ° to 60 °, most preferably 40 ° to 60 °. The range is 50 °. If the angle θ is less than 10 °, the effective dimension of the connecting element 20 (the depth of the groove 32 and the protruding height of the ridge 30) becomes small, and there is a tendency that a sufficient connecting action to the support cannot be secured. If it exceeds 80 °, the above-described effect of dispersing the material injection pressure is reduced, and the bending of the base 16 during insert molding tends to increase. The component force P of the material injection pressure acting to press the first edges 22 of the base 16 in the mutually approaching direction is represented by an angle θ.
Is 1 when the angle θ is 90 °, and 0 when θ = 60 °.
9, 0.7 at θ = 45 ° and 0.5 at θ = 30 °.

The base 16 of the engaging member 10 and the engaging element 18
Can be set variously according to the application. For example, as described above, when the attachment member 10 is used for attaching the fixed windowpane to the vehicle body window frame, the thickness of the base 16, that is, the distance between the main surface 12 and the back surface 14 is, for example, 0.3 mm to
5 mm, the area of the main surface 12 of the base 16 is, for example, 10 mm ^2-
500 mm ² , engagement element 1 with hemispherical head as shown in FIG.
8, the diameter of the leg 26 is, for example, 0.1 mm to 3 mm.
Is, for example, 0.6 mm to 5 mm, the diameter of the head 28 is, for example, 0.5 mm to 6 mm, and the height of the head 28 is, for example, 0.5 mm to
4 mm, the standing density of the engaging elements 18 on the base main surface 12 is, for example, 10 / cm ² to 50 / cm ² .

The engaging member according to the present invention can have various shapes. For example, the base of the engaging member is not limited to the above-described substantially rectangular planar shape, and may have a polygonal, circular, or elliptical planar shape. Also, as shown in FIG. 8, the base 10 is provided outside the outwardly inclined side surface 102 of the connecting element 100.
4 to form an extension 106, and to this extension 106,
A substantially perpendicular through-hole 110 may be formed in the base main surface 108. According to such a shape, by devising the shape of the mold 112 as shown in FIG. 8, the base extension portion 106 can be embedded in the polymer material during the insert molding described above. In this case, the through hole 110 reduces the material injection pressure applied to the base extension portion 106, so that the base 104 can be prevented from bending, and the support 114 after molding is formed.
Since the connection action of the connection element 100 to the support member is assisted, the effect of increasing the mutual connection force between the engagement member and the support is exerted.

The engaging element of the engaging member may be a mushroom shape having a spherical, conical or cap-shaped head, a hook shape, a loop shape, or the like, in addition to a protrusion having a hemispherical head as shown in the figure. It can have various shapes such as an umbrella, a palm tree, and an arrowhead. Further, the leg portion can have a shape such as a columnar shape, an elliptical columnar shape, a prismatic shape, a conical shape, and the like.

As a modification of such an engaging element, FIG. 9 shows an engaging member 122 provided with a single engaging element 120 having an elastic arm at the end of a leg. The engagement member 122 is a so-called clip member, and has a base 124 having a substantially circular planar shape.
And 1 standing substantially at the center of the main surface 126 of the base 124.
And a connection element 128 provided on the back side of the base 124. Engagement element 120 includes a leg 130 projecting substantially upright from base main surface 126, and a plurality of resilient arms 132 extending from the distal end of leg 130 toward base main surface 126. The connecting element 128 includes an outwardly inclined side surface 136 provided on the outer peripheral edge of the base rear surface 134 over the entire circumference, and a groove 13 formed in the base rear surface 134.
8 and a pair of through holes 140 provided in parallel with the base rear surface 134.

As shown in FIG. 10, the engaging member 122 is connected to the connecting element 12 in the same manner as in the insert molding step described above.
8, it is fixedly connected to the support, that is, the main body 142 of the attachment member. The attachment member formed in this manner fits the engagement element 120 of the engagement member 122 into the opening 146 provided in the object 144, and the elastic arm 1 of the engagement element 120
32 is fixedly attached to the object 144 by snappingly engaging the inner shoulder of the opening 146. The height of the engagement element 120 protruding from the base main surface 126 is preferably in the range of 5 mm to 30 mm.

As another modification of the engaging element, an engaging member 1 having two differently shaped engaging elements 150 and 152 is provided.
54 is shown in FIG. As shown, the engagement member 154
Is formed by alternately arranging a plurality of engaging elements 150 and 152 having heads 156 and 158 having different heights on the main surface 162 of the base 160 substantially in parallel. This engagement member 154 is provided with an engagement element 15 having a lower head 156.
FIG. 12 with a plurality of engagement elements 164 having substantially the same shape as FIG.
Can be interengaged with another engaging member 166 shown in FIG. The engagement member 166 is provided on the main surface 170 of the base 168.
Engagement element 15 with high head 158 of engagement member 154
A recess 172 capable of receiving two heads 158 is provided between each row of aligned engagement elements 164.

Such a pair of engaging members 154, 166
Are engaged with each other when the engagement elements 15 of the engagement member 154 are engaged with each other.
The time from when the relatively high head 158 of the two contacts the head of the engagement element 164 of the engagement member 166 to when it enters between the legs of the engagement element 164 to complete the engagement is It can be extended as compared with the case where the engaging elements 150 and 164 having the low head mutually engage. As a result, it is easier for a worker who manually engages with each other to recognize the completion of the engagement by sound or tactile sensation. In addition, according to the above configuration, the distance between the bases 160 and 168 of the engagement members 154 and 166 after the engagement is not unnecessarily enlarged.
When the attachment member is attached to the surface of the object using 166, the protrusion of the attachment member can be suppressed as much as possible.

In the engaging members 154 and 166, various connecting elements as described above can be formed integrally with the bases 160 and 168, and can be fixed to the attachment member main body or the target object via the connecting elements. In particular, the engaging member 166 is
Although the rigidity of the base portion is further reduced at the portion 2, by using the connecting element according to the present invention, the bending of the base portion during insert molding can be suppressed.

The engaging member according to the present invention can be formed from various materials. For example, the material can be selected from polymer materials such as polyamide, polyimide, polyester, polypropylene, polyethylene, ionomer, and polyacetal. Of these, polyamide is excellent in heat resistance and mechanical strength, and is therefore suitable for suppressing deformation during insert molding. In addition, by selecting from engineering plastics such as polyphenylene sulfide, polyether ketone, polyether ester, polyether sulfone, polyether imide, polysulfone, polyarylate, etc., the heat resistance, mechanical strength, temperature and humidity of the engaging member are selected. The dimensional stability with respect to can be improved.

Further, various additives such as a plasticizer, rubber, carbon fiber, glass fiber, carbon black and the like can be added to the above-mentioned polymer material. In particular, carbon black is suitable because it enhances the antistatic performance of the formed engaging member, can appropriately adjust the elastic modulus of the base and the leg, and improves the durability in a low-temperature (for example, −30 ° C.) environment. is there.

The engaging member according to the present invention can be formed by various methods. In particular, it is advantageous to integrally mold the base, the engaging element and the connecting element from the above-mentioned materials, in which case the destructively detachable one disclosed in US Pat. No. 5,242,646 is advantageous. It is particularly preferable to employ an injection molding process using a mold. Briefly, as shown in FIG. 13, a base mold 200 having a molding space for molding the base 16 and the coupling element 20 of the engagement member 10, and a base mold 200 for molding the leg 26 of the engagement element 18. A leg mold 202 having a molding space and a head mold 204 having a molding space for molding the head 28 of the engagement element 18 are prepared. The leg mold 202 is a mold that is destructively detached from the formed engaging member 10 by various mechanical or chemical means such as dissolution by a solvent, melting, destruction, pulverization by ultrasonic waves or the like, and cutting. . The molds 200, 202, and 204 are closely arranged such that the respective molding spaces are connected so as to allow fluid flow, and in this state, the molten polymer material is injected into the molding space and solidified to form an engaging member. 10 are integrally formed.
When the engagement member 10 is formed, the base mold 200 and the head mold 204 are removed from the engagement member 10 while leaving the leg mold 202. At this time, the base mold 200 has a structure that can be bisected forward and backward in a direction perpendicular to the drawing. Further, the engaging member 10
Of the engaging element 18 around the leg 26 is destructively detached.

The attachment member according to the present invention can be formed from various materials and can have various shapes and dimensions. The material of the support is selected from a polymer material generally used for insert molding, such as a thermoplastic resin and a curable resin (by heat, humidity, radiation, etc.), and various materials of the above-described engaging member. it can. Further, when the main body of the attachment member is composed of a support and a base material, in addition to the glass plate as the base material,
Decorative boards, building materials, metal plates, etc. can be used. The thickness of the support is, for example, 1 mm to 10 mm, preferably 1.5 mm to 5 mm.
mm range. The thickness of the substrate is, for example, in the range of 5 mm to 30 mm. A primer can be applied in advance to the adhesive interface between the substrate and the support, if necessary.

[0053]

EXAMPLE In order to further clarify the effects of the present invention, a fixed window glass 70 shown in FIG. 6 was manufactured by an insert molding process shown in FIG. 7, and the following experiment was conducted. In the experiment, each component of the fixed windowpane 70 was a 3 mm-thick glass plate as the base material 72 and a 4 mm-thick polyvinyl chloride resin window molding as the support 74 (manufactured by Riken Co., Ltd.).
From nylon 6 (trade name) as the engaging member 10 in FIG.
The fastener member formed by the injection molding method shown in No. 3 was used. In the insert molding step, the molten polymer material was injected into the mold at two different pressures, 2 × 10 ⁷ Pa and 5 × 10 ⁷ Pa. At this time, the amount of bending of the engaging member 10 after molding was measured.

First, at any of the material injection pressures, there was almost no deformation of the engaging element 18 visually, and the engaging force was obtained in a range where there was no practical problem. No sink marks were observed between the engaging member 10 and the window molding 74. Further, the wind molding 74 was broken, the engaging member 10 was taken out without damage, and each portion was measured with a caliper. As a result, a pair of outwardly inclined side surfaces 46 of the connecting element 20 were measured.
The distance between the second ends 50 of the material is 2 × 10 ⁷ P
A reduction of about 2% was measured at a and a reduction of about 3% at 5 × 10 ⁷ Pa. Similarly, about 2% when the material injection pressure was 2 × 10 ⁷ Pa and about 3% when the material injection pressure was 5 × 10 ⁷ Pa, the curvature (bending) was measured on the base main surface 12.

As a comparative example, the conventional fixed member 2 shown in FIG.
0, and the amount of deflection of the engagement member 2 was measured. First, at any material injection pressure, visual deformation of the head 28 of the engagement element 18 was observed, especially in the central region of the base 16.
Further, when the wind molding 74 was broken and the respective portions of the engaging member 2 were similarly measured with a caliper, the distance between the free ends of the pair of side surfaces 8 of the connecting element 5 was 2 × 10 about 6% when the ⁷ Pa, is reduced approximately 10% in the case of 5 × 10 ⁷ Pa was measured. Similarly, on the base main surface 7,
5% when the material injection pressure is 2 × 10 ⁷ Pa
^{At 7} Pa, about 8% curvature (bending) was measured. From the above experimental results, the superiority of the present invention became clear.

[0056]

As is apparent from the above description, according to the present invention, when connecting the engaging member to the support in the insert molding step, the bending of the base of the engaging member is suppressed as much as possible. In addition, the molten polymer material can be injected into the mold at a pressure sufficient to prevent sink after sinking of the support. Therefore, the molten polymer material sufficiently spreads to every corner around the connection element, and a strong connection action of the engagement member by the formed connection element is ensured. In addition, since the deformation of the engaging element is prevented, the engaging ability of the engaging member integrated with the support can be maintained at a high level. Further, at this time, since it is not necessary to unnecessarily increase the thickness of the base of the engaging member, an increase in the thickness of the support integrally provided with the engaging member is prevented, and the appearance and function of the support itself may be impaired. Be avoided. Therefore, according to the present invention, a high-quality engaging member optimal for an insert molding process and a high-quality attaching member provided with such an engaging member are provided.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of an engagement member according to an embodiment of the present invention.

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

3A is a front view showing a modification of the coupling element of the engagement member of FIG. 1, FIG. 3B is a front view showing another modification of the coupling element of the engagement member of FIG. 1, and FIG. FIG. 9 is a front view showing still another modified example of the connecting element of the engaging member of FIG. 1.

4A and 4B are explanatory views of the operation of a connecting element showing the engaging member of FIG. 1 and a conventional engaging member together with a mold of a support, and FIG. 4A is a partial cross-sectional front view during material injection, and FIG. (C) is a partial cross-sectional front view of the conventional engaging member after material injection.

FIG. 5 is a schematic plan view of an attachment member according to an embodiment of the present invention.

6 is a partially enlarged cross-sectional front view showing a state in which the attachment member of FIG. 5 is attached to an object.

FIG. 7 is a sectional front view showing a forming step of the attachment member of FIG. 5 together with a mold.

FIG. 8 is a cross-sectional front view at the time of molding of an attachment member provided with an engagement member according to a modification.

FIG. 9 illustrates an engagement member according to another embodiment of the present invention.
(A) is a front view, and (b) is a bottom view.

10 is an enlarged cross-sectional front view showing a state in which the attachment member provided with the engagement member of FIG. 9 is attached to an object.

FIG. 11 shows an engagement member according to another embodiment of the present invention;
(A) is a plan view, and (b) is a front view.

12 (a) is a plan view of an engaging member according to another embodiment of the present invention which can be engaged with the engaging member of FIG. 11, and FIG.
It is a front view.

FIG. 13 is a sectional front view showing a forming step of the engaging member of FIG. 1;

FIG. 14 is a cross-sectional front view showing a step of insert molding a conventional engaging member.

[Explanation of symbols]

 10, 122 ... engaging member 16, 104, 124 ... base 18, 120 ... engaging element 20, 100, 128 ... connecting element 30 ... ridge 32, 36, 138 ... groove 34, 38 ... outer wall 40, 44, 110 Reference numerals 140, through holes 46, 58, 102, 136 outward inclined side surfaces 52, 82, 86, 112 mold 70 fixed window glass 72 glass plate 74 wind molding 76 molding space

Claims (5)

[Claims] 1. A base having a substantially flat main surface and a back surface opposite to the main surface, an engagement element provided on the main surface of the base, and a connecting element provided on the back surface of the base. An engagement member comprising: a support member that is mechanically and fixedly connected to the support via the connection element in a state where the engagement element is exposed on a surface of the support. An element extends substantially obliquely away from the main surface from a first end adjacent the outermost edge of the base to a second end disposed near the center of the back surface relative to the first end. An engaging member comprising an outwardly inclined side surface. 2. The outwardly sloping side surface of the connecting element,
The engagement member according to claim 1, wherein the engagement member is provided at a position surrounding the connection element in a substantially annular shape. 3. The base has a portion extending outward from the first end of the outwardly inclined side surface of the connecting element,
The engaging member according to claim 1, wherein a through hole is provided in the portion at a position substantially orthogonal to the main surface. 4. A body, at least a part of which is formed of a polymer molded body, and an engaging member supported by the main body using the polymer molded body as a support, and an engaging element of the engaging member is provided. An attachment member fixedly attached to the surface of another object, wherein the engagement member comprises the engagement member according to any one of claims 1 to 3. 5. The attachment member according to claim 4, wherein the main body includes a base material that supports the polymer molded body.