JP2003181938A - Mounting structure for resin member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure for a resin member in which two resin members are clamped together with a mounting member via a stepped bolt for mounting one resin member at the mounting member. <P>SOLUTION: The mounting structure for the resin member comprises the mounting member 1 having a mount 2 in which a bolt inserting hole 3 is perforated, a first resin member 10 having a first coupling part 11 including a cutout formed at a first coupling hole forming part 13 of a circular arc state at an end face 12, a second resin member 20 having a second coupling 24 including a cutout formed at a second coupling hole forming part 26 of a circular arc state on an end face 25, and a stepped bolt 30 having a step 31 engaged within a coupling hole 28 formed of the first coupling hole forming part 13 and the second coupling hole forming part 26 by opposed surfaces of the end face 12 and the end face 25, a head part 33 bridged to the first coupling part 11 and the second coupling part 24 and a nut 4 engaged with a threaded part 32. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin member mounting structure, and more particularly to a resin member mounting portion structure in which two types of resin members are jointly mounted to a mounting member by stepped bolts.

[0002]

2. Description of the Related Art For example, when a first resin member and a second resin member such as two types of trims are partially overlapped and attached to a mounting member such as a vehicle body panel of a vehicle body, the first resin member and the second resin member are generally used. Different types are used for the stepped bolts that overlap the resin members and connect them together to the mounting member, and the stepped bolts that connect only one of the first resin member or the second resin member to the installation member.

That is, as shown in the sectional view of FIG. 16, a first resin member 104 and a second resin member 107 are attached to a mounting member 101.
The connecting portion structure in which the bolts are attached to each other is such that the bolt insertion hole 102 is formed in the mounting member 101 and the nut 103 is provided on the back surface.
While the welded portions of the first resin member 104 are welded together, the connecting portion 1 of the first resin member 104 is provided with the connecting hole 106 having a diameter larger than that of the bolt insertion hole 102.
05, and then the connecting portion 108 of the second resin member 107 in which the connecting hole 109 having the same diameter as the connecting hole 106 is formed. Further, a head portion 110b having a stepped portion 110a fitted in the connecting holes 106 and 109 and having a length substantially the same as the thickness of the connecting portions 105 and 108 overlapped with each other and having a larger diameter than the stepped portion 110a is formed. The stepped bolt 110 having the coupling hole 1
The first resin member 104 and the second resin member 107 are jointly fastened and coupled to the mounting member 101 by inserting from the side of 06 and 109 and penetrating the bolt insertion hole 102 and fastening to the nut 103.

On the other hand, the connecting portion structure for mounting only one of the first resin member 104 or the second resin member 107, for example, the second resin member 107, has a bolt insertion hole 102 in the mounting member 101 as shown in a sectional view in FIG. And the nut 103 is welded and coupled to the rear surface of the bolt 103, and the bolt insertion hole 10
Second resin member 1 in which a coupling hole 109 having a diameter larger than 2 is formed
The connection part 107 of 07 is piled up. Then, the stepped portion 111a fitted in the coupling hole 109 and having a length substantially the same as the thickness of the coupling portion 108, and the head portion 11 having a diameter larger than that of the stepped portion 111a.
A stepped bolt 111 having 1b is inserted from the coupling hole 109 side, penetrates the bolt insertion hole 102, and is inserted into the nut 103.
The second resin member 107 is coupled to the attachment member 101 by fastening the second resin member 107.

[0005]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention First Resin Member 10
According to the joint portion structure in which the fourth resin member 107 and the second resin member 107 are stacked and attached, the length is approximately the same as the total thickness of the joint portion 105 of the first resin member 104 and the joint portion 108 of the second resin member 107. By using the stepped bolt 110 having the stepped portion 110a, the occurrence of creep is prevented and the stable attachment state of the first resin member 104 and the second resin member 107 is maintained. Similarly, also in the joint portion structure in which only the second resin member 107 is attached, by using the stepped bolt 111 having the step portion 111a having substantially the same length as the thickness of the joint portion 108 of the second resin member 107. Creep is prevented from occurring and a stable mounting state is maintained.

However, the stepped bolt 110 used in the mounting portion structure for mounting the first resin member 104 and the second resin member 107 in an overlapping manner, and the mounting portion for mounting one of the first resin member 104 or the second resin member 109. Since the type of the stepped bolts 111 used in the structure is different, it is necessary to appropriately select and use the two types of stepped bolts 110 and 111, which complicates the work and leads to a reduction in work efficiency and an error. Contributes to the occurrence of mounting.

Two different types of stepped bolts 110
Since 111 and 111 are required, the number of types of parts is increased, the parts management becomes complicated, and the manufacturing cost increases.

Therefore, an object of the present invention made in view of the above point is to make it possible to jointly attach two resin members to the mounting member together with a stepped bolt for mounting one resin member to the mounting member. An object is to provide a structure for attaching members.

[0009]

According to a first aspect of the present invention, there is provided a resin member mounting portion structure according to claim 1, wherein a plurality of resin members are bolted together with the mounting member so as to be mounted. A mounting member having a mounting portion having an insertion hole formed therein, and a first resin member having a flat plate shape overlapping the mounting portion and having a first coupling portion with a first coupling hole forming portion cut out at an end face thereof. A second resin member having a flat plate-like shape that overlaps with the mounting portion, and has a second joint portion in which a second joint hole forming portion is cut out at an end surface that can face the end surface of the first resin member; The step portion is fitted into the coupling hole formed by the first coupling hole forming portion and the second coupling hole forming portion by the facing surface of the first resin member and the end surface of the second resin member, and the head portion is Abuts on the first coupling part and the second coupling part, and Flip portion is characterized in that a stepped bolt which is fastened to the mounting member is inserted into the bolt insertion hole.

According to the first aspect of the present invention, both the first joint portion of the first resin member and the second joint portion of the second resin member are sandwiched between the mounting portion of the mounting member and the head of the bolt, and the first joint is formed.
The resin member and the second resin member are attached to the attachment member,
In addition, by using the stepped bolt, excessive compressive force exerted on the first joint portion and the second joint portion is avoided, creep of the portion is prevented from occurring, and a stable mounting state can be maintained. Since the length of the stepped portion of the stepped bolt corresponds to the respective thicknesses of the first connecting portion and the second connecting portion, even when only one of the first resin member and the second resin member is attached to the attaching member. Can be used.

Therefore, the first resin member and the second resin member can be fastened together and attached to the attachment member by a single type of stepped bolt, or only one of the first resin member and the second resin member can be attached. It can be attached to a member, the work can be simplified, work efficiency can be improved, and erroneous attachment can be prevented. Moreover, since a single type of bolt is used, the number of types of parts can be reduced, the management of parts can be simplified, and a reduction in manufacturing cost can be expected.

According to a second aspect of the present invention, in a resin member mounting portion structure in which a plurality of resin members are bolted together with a mounting member, a mounting member having a mounting portion having a bolt insertion hole is provided. A first resin member having a flat plate-like shape overlapping with the mounting portion and having a first connecting hole forming portion cut out in an end face, a base portion overlapping the first resin member, and an embossed portion from the base portion Forming a notch at the end face of the flat plate which overlaps with the attachment part and which can face the end face of the first resin member, and which has a second swelling part that bulges out in a circular shape to face the first joint part. The second resin member having the formed second coupling portion and the facing surface of the end surface of the first resin member and the end surface of the second resin member are formed by the first coupling hole forming portion and the second coupling hole forming portion. Step fits into the coupling hole Both of them have stepped bolts whose heads are in contact with the first connecting portion and the second connecting portion facing from the opening, and the threaded portion is inserted into the bolt insertion hole and fastened to the mounting member. Characterize.

According to a second aspect of the present invention, there is provided a mounting portion structure in which the first resin member and the second resin member are overlapped and fastened to the mounting member with stepped bolts, wherein the first connecting portion of the first resin member and the second resin member are combined. The second joint portion of the resin member is sandwiched between the attachment portion of the attachment member and the head of the bolt to attach the first resin member and the second resin member to the attachment member, and the first joint portion and the second joint member.
Excessive compressive force exerted on the joint is avoided, and the first resin member and the second resin member can be maintained in a stable mounted state. Since the length of the step portion of the stepped bolt corresponds to the thickness of the first connecting portion and the second connecting portion, the first resin member or the second resin member
It can also be used when only one of the resin members is attached to the attachment member.

Therefore, the first resin member and the second resin member can be fastened together and attached to the attachment member by a single type of stepped bolt, or only one of the first resin member and the second resin member can be attached. It can be attached to a member, which simplifies the work and prevents erroneous attachment from occurring.

According to a third aspect of the present invention, in the resin member mounting structure according to the first or second aspect, the resin member is provided along an end surface of either one of the first resin member and the second resin member. And a projecting portion projecting from the resin member along the end face of the other resin member and fitted into the recess.

According to the third aspect of the present invention, the gap formed between the end surface of the first coupling portion and the end surface of the second coupling portion is covered by the protruding portion that fits into the concave portion, and the mounting member is not exposed. The appearance beauty can be secured and the design effect can be obtained.

According to a fourth aspect of the present invention, in the resin member mounting portion structure according to the first or second aspect, the first resin member and the second resin member are integrally formed with engaging means for engaging with each other. It is characterized by having.

According to the fourth aspect of the present invention, since the first resin member and the second resin member are provided with the engaging means integrally formed with each other, the first resin member and the second resin member are connected by the connecting means. Are connected to each other so as to be capable of transmitting a load, and rigidity that opposes a direction in which the first coupling portion and the second coupling portion are separated from each other can be ensured, and the first joint portion and the second coupling portion are separated from each other by the stepped bolt without separation. The attachment of the first resin member and the second resin member to the attachment member becomes more reliable. Further, by forming the engaging means integrally with the first resin member and the second resin member, an increase in the number of parts can be suppressed, and the mounting work is not complicated.

According to a fifth aspect of the present invention, in the resin member mounting portion structure according to the fourth aspect, the engagement means is the first portion.
An engaging portion formed in a substantially L-shaped cross section along the end surface of the first coupling portion of the resin member, and a substantially L-shaped cross section formed along the end surface of the second coupling portion of the second resin member. An engaging portion engageable with the engaging portion is provided.

According to a fifth aspect of the present invention, there is provided a concrete structure of the engaging means according to the fourth aspect, wherein the engaging portion is formed in an L-shaped cross section along the end face of the first coupling portion. The action and effect of the above-mentioned claim 4 can be achieved by a simple configuration in which the engaging portion formed in a substantially L-shaped cross section is engaged along the end face of the second coupling portion.

According to a sixth aspect of the present invention, in the resin member mounting portion structure according to the fourth aspect, the engaging means includes notch portions formed on both side edges of the first resin member and the respective cut portions. A pair of hooks formed on the second resin member that engages with the cutout portion are provided.

According to a sixth aspect of the invention, there is provided a concrete structure of the engaging means according to the fourth aspect, wherein notches formed on both side edges of the first resin member and the second resin member are formed. By engaging a pair of hooks formed in the above, the action and effect of the above-mentioned claim 4 can be achieved.

According to a seventh aspect of the present invention, in the resin member mounting portion structure according to the second aspect, the groove formed in one of the base portions of the first resin member or the second resin member which overlaps each other and the groove formed in the other are projected. It is characterized in that it is provided with an engaging means having a rib-shaped engaging portion which is provided and whose tip is engaged with the groove.

According to the invention of claim 7, the first resin member and the second resin member are connected to each other in a load-transmittable manner by the connecting means for locking the tip of the rib-shaped locking portion in the groove. The rigidity that opposes the direction in which the second coupling portion and the second coupling portion are separated from each other can be ensured, and the first coupling portion and the second coupling portion can be separated without separating from each other.
The mounting rigidity of the resin member and the second resin member to the mounting member can be ensured more reliably.

According to an eighth aspect of the present invention, in the resin member mounting portion structure according to the second aspect, a flange bent at an edge portion of a base portion of the second resin member that overlaps the first resin member, and the above-mentioned flange are formed. It is characterized in that it is provided with an engaging means formed in the first resin member and having a groove with which the tip of the flange is engaged.

According to the eighth aspect of the present invention, the first resin member and the second resin member are connected to each other so that the load can be transmitted by the connecting means for locking the flange in the groove, and oppose each other in the direction in which they are separated from each other. Rigidity can be secured, and the first connecting part and the second
It is possible to secure the mounting rigidity of the first resin member and the second resin member to the mounting member by the stepped bolt without separating the connecting portion.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a structure for mounting a resin member according to the present invention will be described with reference to the drawings.

(First Embodiment) FIG. 1 shows the first embodiment.
It will be described with reference to FIGS. In FIG. 1, for example, a first resin member 10 and a second resin member 20 such as two types of trims are partly overlapped and attached to a mounting member 1 such as a vehicle body panel of a vehicle body by tightening together with a stepped bolt 30. It is a front view which shows the outline of a mounting part structure, FIG. 2 is the II sectional view taken on the line of FIG.
3 is a perspective view of an essential part, FIG. 4 is an exploded perspective view of an essential part, and FIG. 5 is an exploded perspective view of the same.

A bolt insertion hole 3 is formed in the mounting portion 2 formed on the mounting member 1, and a nut 4 is welded to the rear surface of the mounting member 2 coaxially with the bolt insertion hole 3.

At the end of the first resin member 10, the first connecting portion 11 is formed.
Are formed. The first coupling portion 11 has a flat plate shape overlapping the mounting portion 2 of the mounting member 1, has a thickness dimension a, and has an end face 1
2 is a flat surface shape that passes through the central axis L of the bolt insertion hole 3, and further, a circular arc-shaped first coupling hole forming portion 13 having a radius larger than the radius of the bolt insertion hole 3 with the central axis L as an axis is formed as a notch. Has been done.

The second resin member 20 has an embossed mounting portion portion 22 that is bulged toward the mounting member 1 side from a flat plate-shaped base portion 21 overlapping the first resin member 10. The mounting portion 22 has a substantially conical tapered peripheral surface portion 23 whose diameter is smoothly reduced as it moves from the base portion 21 to the mounting member 1 side.
The peripheral surface portion 23 is continuously formed so as to project at the tip of the peripheral surface portion 23.
Has a second coupling portion 24 which is formed in a semicircular shape and which covers approximately half of the above and overlaps with the mounting portion 2 of the mounting member 1 and has substantially the same thickness dimension a as the first coupling portion 11 of the first resin member 10. is doing.

The second coupling portion 24 has a flat surface that passes through the central axis L and has an end surface 25 facing the end surface 12 of the first resin member 10, and the first resin member 10 has the central axis L as its axis.
Second circular hole having the same radius as the first coupling hole forming portion 13 of
The coupling hole forming portion 26 is formed with a notch. Peripheral part 23
The opening 27 is formed between the tip of the second connecting portion 24 and the end surface of the second connecting portion 24.
Is formed.

Then, the first connecting portion 11 of the first resin member 10 and the second connecting portion 24 formed on the attaching portion 22 of the second resin member 20 are overlapped on the attaching portion 2 of the attaching member 1. By making the end faces 12 and 25 of the first resin member 10 and the second resin member 20 face each other and abutting each other,
As shown in FIG. 3, a cylindrical coupling hole 28 is formed by the first coupling hole forming portion 13 and the second coupling hole forming portion 26, and a first coupling hole forming portion 13 is formed from the opening 27. The 1 coupling part 11 faces.

The stepped bolt 30 is fitted in the coupling hole 28 and has a stepped portion 31 having substantially the same thickness dimension a and substantially the same length as the first coupling portion 11 and the second coupling portion 24. , A threaded portion 32 that can be inserted into the bolt insertion hole 3 and screwed into the nut 4
And a head portion 33 having a diameter larger than that of the coupling hole 28 and smaller than the inner diameter of the peripheral surface portion 23 is integrally formed.

The mounting member 1, the first resin member 10 and the second resin member 20 configured as described above are formed on the mounting portion 2 of the mounting member 1 with the central axis L of the bolt insertion hole 3 and the first coupling hole. The first resin member 10 with the axis of the portion 13 coaxially positioned
The first coupling part 11 of the second resin member 20
A cylindrical coupling hole 2 formed by the first coupling hole forming portion 13 and the second coupling hole forming portion 26 by overlapping the coupling portion 24 on the mounting portion 2 of the mounting member 1 and bringing the end faces 12 and 25 into contact with each other.
8 is formed. From the connecting hole 28 to the stepped bolt 30
The threaded portion 32 is inserted into the bolt insertion hole 3 to fit the stepped portion 31 into the coupling hole 28, and the nut 4 is tightened and fastened.

In this tightened state, as shown in FIGS. 1 and 2, the stepped bolt 3 is attached to the first joint portion 11 of the first resin member 10 and the second joint portion 24 of the second resin member 20.
No. 0 head 33 is hung over and abutted, and is clamped by the mounting portion 2 of the mounting member 1 and the head 33 of the stepped bolt 30 so that the first coupling portion 11 and the second coupling portion 24 are attached to the mounting member 1. It is installed in the state of being fastened together. In addition, by using the stepped bolt 30 having the stepped portion 31 having substantially the same length as the thickness a of the first joint portion 11 and the thickness a of the second joint portion 24, the first joint portion 11 and the first joint portion 11 Excessive compressive force exerted by the mounting member 1 and the head portion 33 of the stepped bolt 30 on the two-joint portion 24 is avoided, and creep of the portion is prevented from occurring, so that the first resin member 10 and the second resin member 20 are prevented from creeping. A stable mounting state is maintained.

Also, one of the first resin member 10 and the second resin member 20, for example, the connecting portion structure for mounting only the first resin member 10 has a mounting member 1 as shown in the sectional view of FIG.
A bolt insertion hole 7 is bored in the mounting portion 6 of the bolt, a nut 4 is welded to the rear surface, and a coupling hole 17 into which a step 31 of the bolt 30 is fitted is bored in the coupling portion 16 having a thickness dimension a. The first resin member 10 is overlaid. And the stepped bolt 30
Is inserted from the side of the coupling hole 17, penetrates the bolt insertion hole 7, is fastened to the nut 4, and the step portion 31 is fitted into the coupling hole 17 and fastened.

The joint portion 16 of the first resin member 10 thus fastened is connected to the mounting portion 6 of the mounting member 1 and the stepped bolt 3.
The first resin member 10 is attached to the mounting member 1 by being sandwiched by the head portion 33 of 0, and the bolt 30 having the step portion 31 having substantially the same length as the thickness a of the connecting portion 16 of the first resin member 10. By using, the excessive compressive force exerted on the mounting portion 16 of the first resin member 10 by the mounting member 1 and the head portion 33 of the stepped bolt 30 is avoided, and the occurrence of creep of the portion is prevented. 1. The resin member 10 is maintained in a stable mounted state.

Therefore, the overlapping first resin member 10 and second resin member 20 can be fastened together with the mounting member 1 by a single type of stepped bolt 30, and the first resin member 10 or the first resin member 10 or Since only one of the two resin members 20 can be attached to the attachment member 1, work can be simplified, work efficiency can be improved, and erroneous attachment can be prevented. Further, since the single type of stepped bolt 30 is used, the number of types of parts can be reduced, the parts management can be simplified, and the manufacturing cost can be expected to be reduced.

(Second Embodiment) A second embodiment of the present invention will be described with reference to FIGS. 7 and 8. FIG. 7 shows the above FIG.
8 is a sectional view taken along the line II-II of FIG. 7, and in FIGS. 7 and 8, the portions corresponding to those in FIGS. Will be omitted, and different parts will be mainly described.

As shown in FIGS. 7 and 8, the second resin member 2
While forming a recess 41 having a substantially L-shaped cross section on the back surface along the end surface 25 of the second coupling portion 24 formed in 0,
End face 1 of first coupling portion 11 formed on first resin member 10
2 is provided with a protrusion 42 that overlaps with the recess 41 and fits therein.

With this configuration, in addition to the first embodiment, the end face 12 of the first joint portion 11 formed on the first resin member 10 and the second joint portion formed on the second resin member 20. The aesthetic appearance can be secured and a design effect can be obtained without hiding the gap generated between the end surface 25 of 24 and the mounting member 10 and exposing the mounting member 10.

The recess 41 is not limited to the L-shaped cross section formed by the notch, but is formed by a chamfered inclined surface cut out along the end face 25, and the projection 42 is fitted to the inclined surface. It can also be formed in a projecting shape having matching slopes. Further, the recess 41 is formed along the end surface 12 of the first resin member 10, and the protrusion 42 is formed on the end surface 25 of the second resin member 20.
It can also be formed along.

(Third Embodiment) A third embodiment of the present invention will be described with reference to FIGS. 9 and 10. 9 is a front view corresponding to FIG. 1, and FIG. 10 is a sectional view taken along the line III-III of FIG. 9. In FIGS. 9 and 10, parts corresponding to those of FIGS. A detailed description of the part will be omitted, and different parts will be mainly described.

The first resin member 10 and the second resin member 20 have engaging means for engaging each other. As shown in FIGS. 9 and 10, the engagement means includes the end face 12 of the first coupling portion 11 of the first resin member 10 and the second end of the second resin member 20.
It is configured by integrally forming engaging portions 43 and 44 having a substantially L-shaped cross-section, which overlap each other along the end surface 25 of the coupling portion 24 and engage with each other, with the first coupling portion 11 and the second coupling portion 24, respectively. It

By engaging the engaging portion 43 and the engaging portion 44 with each other, in addition to the first embodiment and the second embodiment, the first resin member 10 and the second resin member 20 can transmit the load to each other. Therefore, it is possible to secure the rigidity that the first coupling portion 11 and the second coupling portion 24 are connected to each other and oppose each other in a direction in which they are separated from each other. Therefore, it is possible to prevent the first coupling portion 11 and the second coupling portion 24 from being separated from each other, and the stepped bolts 30 reliably attach the first resin member 10 and the second resin member 20 to the attachment member 1.

Further, by forming the engaging portions 43 and 44 integrally with the first resin member 10 and the second resin member 20, it is possible to suppress an increase in the number of parts and to prevent the mounting work from becoming complicated. .

(Fourth Embodiment) A fourth embodiment of the present invention will be described with reference to FIG. FIG. 11 is a front view corresponding to FIG. 1, and in FIG. 11, parts corresponding to those in FIGS. 1 to 6 are denoted by the same reference numerals to omit detailed description of the parts, and different parts will be mainly described. To do.

As shown in FIG. 11, notches 45 are formed on both sides of the first resin member 10, and hooks 46 that engage with the notches 45 are projectingly formed on the back surface of the second resin member 20. Have means.

By forming the engaging means in this way, the notch portion 45 and the hook 46 are engaged with each other, and the first
In addition to the embodiment, the first resin member 10 and the second resin member 2
0 is connected to each other so that the load can be transmitted, and the rigidity that opposes the direction in which the first mounting portion 11 and the second mounting portion 24 are separated from each other can be ensured. The first resin member 1 which can be prevented by the stepped bolt 30
0 and the second resin member 20 are securely attached to the attachment member 1.

Further, the first resin member 10 and the second resin member 2
Relative movement of the 0 end faces 12 and 25 in the extending direction is also restricted. Therefore, the mounting rigidity of the first resin member 10 and the second resin member 20 to the mounting member 1 by the bolt 30 is more reliably ensured. Further, the first resin member 10 and the second resin member 2
Since it has a relative positioning function of 0, the mounting work with the bolt 30 becomes easy.

(Fifth Embodiment) A fifth embodiment of the present invention will be described with reference to FIGS. 12 is a front view corresponding to FIG. 1 described above, and FIG. 13 is IV-IV of FIG.
12 is a sectional view taken along the line, and in FIGS. 12 and 13, parts corresponding to those in FIGS. 1 to 6 are denoted by the same reference numerals to omit detailed description of the parts, and different parts will be mainly described.

As shown in FIGS. 12 and 13, the first resin member 1 is formed on the base portion 21 of the second resin member 20 along the peripheral surface portion 23.
A rib-shaped locking portion 47 is provided so that the distal end 47a gradually projects away from the peripheral surface portion 23 toward 0, and a groove 48 in which the distal end 47a of the locking portion 47 is locked to the first resin member 10.
To form the engaging means.

Since the tips 47a of the engaging portions 47 engage with each other in the groove 48, in addition to the first embodiment, the first
The resin member 10 and the second resin member 20 are connected to each other so as to be capable of transmitting a load, and the rigidity that opposes the direction in which the first coupling portion 11 and the second coupling portion 24 are separated from each other can be ensured. Therefore, the first
Separation of the joint portion 11 and the second joint portion 24 can be prevented, and the first resin member 10 and the second resin member 2 by the stepped bolt 30.
The attachment rigidity of 0 to the attachment member 1 is more reliably ensured.

(Sixth Embodiment) A sixth embodiment of the present invention will be described with reference to FIGS. 14 and 15. 14 is a front view corresponding to FIG. 1 described above, and FIG. 15 is a cross-sectional view taken along line VV of FIG. 14, and in FIGS. 14 and 15, parts corresponding to those of FIGS. A detailed description of the part will be omitted, and different parts will be mainly described.

As shown in FIGS. 14 and 15, along the tip of the peripheral surface portion 23 of the second resin member 20, the first resin member 10 is brought into contact with the first coupling portion 11 and is folded away from the end surface 15. A groove 50 in which the tip 49a of the flange 49 is locked to the first resin member 10 while the curved flange 49 is provided
The engaging portion 50 having a is projected to form an engaging means.

That is, the flange 4 formed on the edge of the base 21
By engaging the tip 49a of 9 with the engaging portion 50,
In addition to the first embodiment, the first resin member 10 and the second resin member 20 are connected to each other so that the load can be transmitted, and the rigidity can be secured against each other in the direction in which the connecting portions 11 and 24 are separated from each other. Therefore, it is possible to prevent the first coupling portion 11 and the second coupling portion 24 from being separated from each other, and the first resin member 10 by the stepped bolt 30.
Also, the mounting rigidity of the second resin member 20 to the mounting member 1 is further ensured. In addition, the first coupling portion 11 of the first resin member 10
The rigidity of the peripheral surface portion 23 of the second resin member 20 is improved by forming the engaging portion 50 and the flange 49, respectively.

The present invention is not limited to the above-mentioned embodiments, but can be variously modified without departing from the spirit of the invention. For example, in each of the above embodiments, the mounting member 2
The nut 4 was welded and coupled to the back surface of the bolt corresponding to the bolt insertion hole 3. However, when the thickness of the mounting member 2 can be sufficiently secured, the screw portion 32 of the stepped bolt 30 is screwed into the bolt insertion hole 3. It is also possible to form a threaded hole. Further, it is also possible to appropriately combine the second or third embodiment and the fourth to sixth embodiments, or to appropriately combine the fourth to sixth embodiments. Further, the joint rigidity between the first resin member 10 and the second resin member 20 can be further improved.

[0059]

According to the invention of the mounting portion structure of the resin member described above, each connecting portion of the two resin members is sandwiched between the mounting portion of the mounting member and the head of the stepped bolt, so that both resin members are mounted. By using the stepped bolts, it is possible to avoid excessive compressive force exerted on the joints of both resin members, prevent the occurrence of creep in those parts, and ensure stable mounting of both resin members. Is maintained. Since the length of the stepped portion of the stepped bolt corresponds to the thickness of the attachment portion of each resin member, it can be used when attaching only a single first resin member to the attachment member. Therefore,
With a single type of stepped bolt, two resin members are fastened together and attached to the mounting member. Also, only a single resin member can be attached to the mounting member, which simplifies the work. It is possible to improve work efficiency and prevent erroneous mounting from occurring. Further, since a single type of stepped bolt is used, the number of types of parts can be reduced, the management of parts can be simplified, and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view showing an outline of a first embodiment of a resin member mounting portion structure according to the present invention.

FIG. 2 is likewise a cross-sectional view taken along the line I-I of FIG.

FIG. 3 is likewise a perspective view of an essential part.

FIG. 4 is likewise an exploded perspective view of a main part.

FIG. 5 is likewise an exploded perspective view seen from the back.

FIG. 6 is likewise a sectional view of an essential part.

FIG. 7 is a front view showing an outline of a second embodiment of a resin member mounting portion structure according to the present invention.

8 is a sectional view taken along line II-II of FIG.

FIG. 9 is a front view showing the outline of a third embodiment of the resin member mounting portion structure according to the present invention.

10 is a sectional view taken along line III-III of FIG.

FIG. 11 is a front view showing an outline of a fourth embodiment of a resin member mounting portion structure according to the present invention.

FIG. 12 is a front view showing the outline of a fifth embodiment of the resin member mounting portion structure according to the present invention.

13 is a sectional view taken along line IV-IV of FIG.

FIG. 14 is a front view showing an outline of a sixth embodiment of a resin member mounting portion structure according to the present invention.

15 is a sectional view taken along line IV-IV of FIG.

FIG. 16 is a cross-sectional view showing an outline of a conventional joint structure.

FIG. 17 is a sectional view showing an outline of a conventional joint structure, similarly.

[Explanation of symbols]

1 Mounting member 2 connection 3 bolt insertion holes 4 nuts 10 First resin member 11 First coupling part 12 end faces 13 First coupling hole forming part 20 Second resin member 21 base 22 Mounting part 23 Perimeter 24 Second coupling part 25 end face 26 Second Bonding Hole Forming Section 28 coupling holes 30 step bolt 31 steps 32 screw part 33 head 41 Notch 42 Projection 43 Engagement part 44 Engagement part 45 cutout 46 hook 47 Locking part 47a tip 48 grooves 49 flange 49a tip 50 Engagement part 50a groove L center axis

Claims (8)

[Claims] 1. A mounting structure of a resin member for mounting a plurality of resin members together with bolts by tightening the mounting members, the mounting member having a mounting portion having a bolt insertion hole, and a flat plate overlapping the mounting portion. -Shaped first resin member having a first coupling portion in which a first coupling hole forming portion is notched and formed on the end surface, and a flat plate shape that overlaps the mounting portion and can face the end surface of the first resin member The second coupling member having a second coupling portion in which a second coupling hole forming portion is notched in the end face, and the end face of the first resin member and the end face of the second resin member face each other, the first coupling hole is formed. The step portion is fitted in the coupling hole formed by the forming portion and the second coupling hole forming portion, the head portion is in contact with the first coupling portion and the second coupling portion, and the screw portion is in the bolt insertion hole. With a stepped bolt that is inserted and fastened to the mounting member Mounting portion structure of the resin member comprising the. 2. A mounting structure of a resin member for mounting a plurality of resin members together with bolts by tightening the mounting members, the mounting member having a mounting portion having a bolt insertion hole, and a flat plate overlapping the mounting portion. A first resin member having a first coupling portion in which a first coupling hole forming portion is notched and formed in an end face, a base portion overlapping the first resin member, and an embossed swelling from the base portion. A second coupling portion is formed in a flat plate shape that overlaps with the mounting portion and has a second coupling hole forming portion cut out at an end surface that can face the end surface of the first resin member. A stepped portion is formed in the coupling hole formed by the first coupling hole forming portion and the second coupling hole forming portion by the second resin member having and the facing surface of the end surface of the first resin member and the end surface of the second resin member. When fitted, the head is the above opening A stepped bolt that is in contact with the first coupling portion and the second coupling portion exposed from the front and has a threaded portion inserted into the bolt insertion hole and fastened to the mounting member. Mounting structure. 3. A recess formed in the resin member along the end surface of one of the first resin member and the second resin member, and a recess formed in the resin member along the end surface of the other resin member. The resin member mounting structure according to claim 1 or 2, further comprising a projecting portion that is projectingly provided and that fits into the recess. 4. The resin member mounting portion structure according to claim 1 or 2, further comprising engagement means integrally formed with the first resin member and the second resin member, the engaging means engaging with each other. . 5. The cross section of the engaging means is substantially L along the end surface of the first coupling portion of the first resin member.
The cross section is substantially L along the engaging portion formed in a V shape and the end surface of the second coupling portion of the second resin member.
The resin member mounting portion structure according to claim 4, further comprising: an engaging portion that is formed in a letter shape and is capable of engaging with the engaging portion. 6. The engagement means includes notches formed on both side edges of the first resin member, and a pair of hooks formed on the second resin member that engage with the respective notches. The mounting portion structure for a resin member according to claim 4, wherein the mounting portion structure is provided. 7. A groove formed in one of the base portions of the first resin member or the second resin member, which overlaps each other, and a rib-shaped engaging portion protruding from the other and having a tip engaging with the groove. The mounting portion structure for a resin member according to claim 2, further comprising an engaging means having the same. 8. A flange formed by bending at an edge of a base portion of a second resin member that overlaps with the first resin member, and a groove formed in the first resin member and engaged with a tip of the flange. The mounting structure for a resin member according to claim 2, further comprising engaging means.