JPH11291761A - Structure of connection between members - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect members without requring welding and a fixing member such as a machine screw by allowing the tail end of a rib and a connecting member to abut to the inside surface of the embossed part in a state of inserting/penetrating an attachment pin into a slit, and positioning a tip position of the embossed butting part on this side more than the end part of the slit. SOLUTION: The arrowhead part 12 of an attachment pin 11 of a lower side trim is inserted into a slit of the embossed part of an upper side trim. In a state of penetrating this slit, the embossed butting part 14 of a lower side rib 13 is allowed to abut to the inside surface of the under surface part of the embossed part, and the upper tail end 3C of the lower side trim is allowed to abut to the inside surface of the upper surface part of the embossed part to mutually connect the upper side trim and the lower side trim. In this case, a tip position A of the embossed butting part 14 of the lower side rib 13 is positioned on this side more than the end part 10a of the slit to thereby mutually connect the upper side trim and the lower side trim without requiring secondary work such as welding and a fixing member such as a machine screw.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a connection structure between members such as a connection between an upper trim and a lower trim in a door trim of a door in an automobile.

[0002]

2. Description of the Related Art As shown in FIG. 8, an attachment hole 32 is provided at a lower portion of an upper trim 30 and an upper portion of a lower trim 31 is connected to a door trim of a door of a conventional automobile, as shown in FIG. A boss 33 with a rib is provided on the lower portion of the upper trim 30 so that the mounting hole 32 is overlapped with the boss 33, and a screw 35 inserted into the mounting hole 32 is provided. There is one that is screwed to the boss portion 33 to perform the operation.

As shown in FIG. 9, a mounting hole 36 is provided in a lower portion of an upper trim 30 and an upper portion of an upper portion of a lower trim 31 is connected to an upper trim and a lower trim in a door trim of a door of a conventional automobile. Is provided with a hollow welding pin 37 with a rib 38, the welding pin 37 is inserted into the mounting hole 36, the end 38 a of the rib 38 abuts on the lower portion of the upper trim 30, and the lower trim 31 Of the upper trim 30 is placed on the upper trim 30 so that the lower end of the upper trim 30
In some cases, a portion protruding from the mounting hole 36 is thermally caulked.

As shown in FIG. 10, an embossed portion 38 is provided below the upper trim 30 to connect the upper trim and the lower trim in a door trim of a door of a conventional automobile. A mounting hole 39 is provided on the end face, a hollow welding pin 41 with a rib 40 is provided above the lower trim 31, and the welding pin 41 is inserted into the mounting hole 39, and the inclined portion 42 of the rib 40 is embossed. The terminal 31 a of the lower trim 31 is in contact with the lower slope 38 a of the embossed part 38.
b, the lower portion of the upper trim 30 is overlapped with the upper portion of the lower trim 31 so that a portion of the welding pin 41 protruding from the mounting hole 39 is thermally caulked.

[0005]

However, in the above-described conventional connection structure between the upper trim and the lower trim, a secondary process such as screwing or welding is required. Two parts to connect (upper trim 3
If 0 and the lower trim 31) do not have physical properties having similar thermal expansion / contraction values, there is a problem that distortion occurs between fixed points.

In the connection structure of the upper trim and the lower trim shown in FIG.
However, there is a problem in that the position of the contact point which contacts the upper trim 30 is affected by the processing variation of the mounting hole 36 of the upper trim 30.

In the connection structure between the upper trim and the lower trim shown in FIG. 10, a welding pin 41 and a mounting hole 3 are provided.
In order to match with 9, the inclined portion 42 of the rib 40 must be in contact with the lower slope 38a of the embossed portion 38, and the terminal 31a of the lower trim 31 must be in contact with the upper slope 38b of the embossed portion 38. There was a problem.

The present invention has been made in view of such a conventional problem, and an object of the present invention is to eliminate the need for secondary processing such as welding in connecting one and the other connecting members. In addition to providing a connection member between members that is not affected by deformation of a member generated when a slit is opened (opened), not only is a fixing member such as a screw unnecessary, is there.

[0009]

In order to achieve the above object, a connecting structure between members according to the present invention is provided by providing an embossed portion having at least two surfaces on a member main body of one connecting member. An inclined surface portion is provided on the inner surface of the embossed portion, a slit extending over at least two surfaces is provided on the embossed portion, and a member main body of the other connecting member is provided with an insertion pin having a hook portion at a tip portion thereof, A rib is provided to extend from the surface portion of the other connecting member to the insertion pin, an edge of the rib is formed as an emboss contact portion, the insertion pin is inserted into the slit, and the slit is made to penetrate. Contacting the embossed contact portion of the rib with an inclined surface portion of the embossed portion and causing the terminal of the other connecting member to contact the inner surface of the embossed portion, End position, characterized in that so as to be positioned in front of the end of the slit.

[0010] With this configuration, the insertion pin is inserted into the slit, the embossed contact portion of the rib is brought into contact with the inclined surface of the embossed portion while the slit is made to penetrate, and the terminal of the other connecting member is connected to the embossed portion. The one connecting member and the other connecting member can be connected to each other by making contact with the inner surface of the portion. For this reason, in connecting one connecting member and the other connecting member to each other, secondary processing such as welding is not required, and a fixing member such as a screw is not required.

Further, the tip position of the emboss contact portion is
In order to be located before the end of the slit, the embossed contact portion can be in contact with the inclined surface portion of the embossed portion, and the terminal of the other connecting member can be in contact with the inner surface of the embossed portion. As a result, the embossed portion and the end of the other connecting member can be brought into contact with the portion where the shape is securely projected, that is, the inner surface (inclined surface portion) of the embossed portion, and the slit is opened (opened). It is no longer affected by the deformation of the member that occurs at the time.

According to another aspect of the present invention, there is provided a connecting structure between members according to the first aspect of the present invention, wherein the embossed portion is provided at a bottom of the embossed portion. , And four surface portions continuous from the surface portion of the member main body to the four edges of the end surface portion, and the slit is the other surface portion facing from one of the opposing surface portions via the end surface portion. Formed.

With this configuration, the same operation and effect as the above-described first embodiment can be obtained.

According to a third aspect of the present invention, there is provided a connecting structure between members according to the first aspect of the present invention, wherein the embossed portion is provided on a surface of the member main body. The end face part connected to the end face part and the bulging surface part on the opposite side to this end face part are combined at each other edge, and this edge part is formed as a ridge line, and the two ridge lines are bounded by this ridge line, A slit was formed across the end surface and the bulging surface.

With this configuration, the same operation and effect as the above-described first embodiment can be obtained.

According to a fourth aspect of the present invention, there is provided a connecting structure between members according to the first or second or third aspect of the present invention. Is an upper trim, and the other connecting member is a lower trim.

[0017] With this configuration, the connection between the upper trim and the lower trim is performed without using secondary processing such as welding.
This can be performed without using a fixing member such as a screw.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 5 show a connecting structure between members as an embodiment of the present invention. FIG. 1 shows a front view of an automobile door trim provided with a connecting structure between members as an embodiment of the present invention. FIG. 2 is a sectional view taken along the line XX of FIG.
FIG. 4 is an exploded perspective view of a connection structure between members according to the embodiment of the present invention, FIG. 4 is a side view of an embossed portion in the connection structure between the members, and FIG. 5 is a side view of an insertion pin in the connection structure between the members. It is.

In the drawing, reference numeral 1 denotes a door trim, and the door trim 1 is an upper trim 2 which is one connecting member.
And the lower trim 3 as the other connecting member are connected to each other by a connecting structure F between members according to the present invention. And the connection structure F between the members is the upper trim 2
Embossed portion 4, a slit 10 formed in the embossed portion 4, and an insertion pin 11 provided in the lower trim 3.
And an embossing contact portion 14.

An embossed portion 4 is formed below the trim main body 2A of the upper trim 2 as shown in FIG. The embossed portion 4 forms a mountain-shaped bulged portion having a rectangular end surface 5 corresponding to the bottom of the embossed portion 4 as a top. That is, the embossed part 4 is
In addition, the upper surface portion 6 inclined downward from the surface portion 2a of the trim main body 2A to the upper edge of the end surface portion 5, and the lower surface portion 7 inclined upward from the surface portion 2a of the trim main body 2A to the lower edge of the end surface portion 5 A left surface 8 inclined rightward from the surface 2a of the trim main body 2A to the left edge of the end surface 5, and a trim main body 2A
And a right-side surface portion 9 inclined leftward and continuing from the surface portion 2a of the end surface portion 5 to the right edge of the end surface portion 5.
A slit 10 extending from the end face 5 to the right face 9 through the end face 5 is formed.

Further, a trim main body 3A of the lower trim 3 is provided.
As shown in FIG. 3, a plate-shaped insertion pin 11 is formed on the upper part of the head, and the insertion pin 11 has a barbed portion 12 at the tip thereof, and a jaw 12 of the barbed portion 12 is formed.
The angle α of the hanging portion 12B of A is set to 45 degrees or less, and the angle β of the leading side 12C of the barbed portion 12 is made gentler than the angle α of the hanging portion 12B.

The thickness T1 of the jaw 12A of the barbed portion 12 is larger than the thickness T2 of the slit 10. The thickness T3 of the insertion pin 11 is substantially equal to the thickness T2 of the slit 10, and the width B1 of the insertion pin 11 is substantially equal to the width B2 of the slit 10.

The upper rib 13A extends from the surface 3a of the trim main body 3A to the upper surface 11a of the insertion pin 11.
However, lower ribs 13 are formed so as to extend from the surface 3a of the trim main body 3A to the lower surface 11b of the insertion pin 11, and the lower edge of the lower rib 13 is
Has an inclination angle substantially equal to the inclination angle of the inner surface (inclined surface portion) of the lower surface portion 7, and the leading end thereof is cut at a right angle to the insertion pin 11, and the lower edge portion is formed as an emboss contact portion. It is set to 14.

Then, the insertion pin 1 of the lower trim 3
1 is inserted into the slit 10 of the embossed portion 4 of the upper trim 2, and in a state where the slit 10 is pierced, the embossed contact portion 14 of the lower rib 13 is inserted into the inner surface of the lower surface 7 of the embossed portion 4. The upper trim 2 and the lower trim 3 are connected to each other by contacting the upper terminal 3 </ b> C of the lower trim 3 with the inner surface of the upper surface 6 of the embossed portion 4 while being in contact with the (inclined surface portion).

In this case, the tip position a of the embossed contact portion 14 of the lower rib 13 is located at the end of the slit 10 (embossed portion 4).
Of the slits 10 formed in the left and right side portions 8 and 9)
It is located before 10a (the direction opposite to the insertion direction of the insertion pin 11).

When the barbed portion 12 of the insertion pin 11 is inserted into the slit 10 of the embossed portion 4, the thickness T1 of the jaw 12a of the barbed portion 12 is larger than the thickness T2 of the slit 10. In addition, the slit 10 expands, because the slit 10 is formed so as to extend from the left surface portion 8 to the end surface portion 5 and from the end surface portion 5 to the right surface portion 9, respectively. Done easily. When the barbed portion 12 of the insertion pin 11 passes through the slit 10, the slit 10 closes and sandwiches the insertion pin 11.

According to the above-described embodiment, the barbed portion 12 of the insertion pin 11 is connected to the slit 10 of the embossed portion 4.
In a state where the slit 10 is made to penetrate, the embossed contact portion 14 of the lower rib 13 contacts the inner surface of the lower surface 7 of the embossed portion 4 and the upper terminal 3C of the lower trim 3 is connected to the embossed portion 4. The upper trim 2 and the lower trim 3 can be connected to each other by abutting against the inner surface of the upper surface portion 6 of the upper trim portion 6. Subsequent processing becomes unnecessary, and a fixing member such as a screw becomes unnecessary.

Further, the emboss contact portion 14 of the lower rib 13
Is located before the end 10a of the slit 10, so that the emboss contact portion 14 of the lower rib 13
Can be brought into contact with the inner surface of the lower surface 7 of the embossed portion 4 and the upper terminal 3C of the lower trim 3 can be brought into contact with the inner surface of the upper surface 6 of the embossed portion 4 so that the shape can be reliably obtained. When the slit 10 is widened (opened), the embossed portion 14 and the upper terminal 3C of the lower trim 3 can be applied to the lower portion 7 and the upper surface 6 of the embossed portion 4, that is, the lower portion 7 and the upper surface 6 of the embossed portion 4. Is no longer affected by the trim deformation that occurs.

Since the width B1 of the insertion pin 11 is substantially the same as the width B2 of the slit 10, the upper trim 2 and the lower trim 3 do not relatively move in the left-right direction. By making the width B1 of the pin 11 smaller than the width B2 of the slit 10, the upper trim 2 and the lower trim 3 can relatively move in the left-right direction.

As shown in FIG. 6, the embossed portion 4 has a substantially circular end face 20 continuous with the face 2a of the trim body 2A, and a face 2a of the trim body 2A opposite to the end face 20. The bulging surface portion 21 may be joined with the peripheral edge portion 22 of the end surface portion 20 and the joined portion may be formed on the ridgeline B. In this case, 2
There are two surfaces (the end surface 20 and the bulging surface 21). The slit 10 is formed in the embossed portion 4 so as to straddle the end surface portion 20 and the swelling surface portion 21.

Then, the barbed portion 12 of the insertion pin 11 of the lower trim 3 is inserted into the slit 10 of the embossed portion 4 of the upper trim 2, and with the slit 10 penetrated, the embossed contact portion of the lower rib 13 is formed. 14 is brought into contact with the inner surface of the embossed portion 4 and the upper terminal 3 of the lower trim 3.
The upper trim 2 and the lower trim 3 are connected to each other by contacting C with the inner surface of the upper surface 6 of the embossed portion 4. In this case, the tip position A of the embossed contact portion 14 of the lower rib 13 is located closer to the end 10 a of the slit 10.

When the barbed portion 12 of the insertion pin 11 is inserted into the slit 10 of the embossed portion 4, the thickness T1 of the jaw 12a of the barbed portion 12 is larger than the thickness T2 of the slit 10. In addition, the slit 10 expands, and the expansion is easily performed because the slit 10 is formed so as to straddle the two surface portions (the end surface portion 20 and the bulging surface portion 21). Also, insert pin 1
When the one barbed portion 12 passes through the slit 10, the slit 10 closes and sandwiches the insertion pin 11.

As shown in FIG. 7, the thickness T3 of the insertion pin 11 is made larger than the thickness T2 of the slit 10, and the constricted portion 23 is provided at the base of the hook 12B of the jaw 12A of the barbed portion 12. When the barbed portion 12 of the insertion pin 11 is inserted into the slit 10 of the embossed portion 4 and penetrates, the edge 10a of the slit 10 is
3 may be fitted to form an interference fit to prevent the insertion pin 11 from coming off.

[0035]

As described above, according to the connection structure between members according to the present invention, the insertion pin is inserted into the slit, and the embossed contact portion of the rib is formed in the state where the insertion pin is penetrated. The one connecting member and the other connecting member can be connected to each other by contacting the end of the other connecting member to the inner surface of the embossed portion while contacting the inclined surface portion. For this reason, in connecting one connecting member and the other connecting member to each other, secondary processing such as welding is not required, and a fixing member such as a screw is not required.

[0036] Further, in order that the leading end position of the embossed contact portion is located closer to the end of the slit, the embossed contact portion is brought into contact with the inclined surface of the embossed portion.
The terminal of the other connecting member can be brought into contact with the inner surface of the embossed portion, so that the shape of the embossed portion is surely brought out, that is, the inner surface (inclined surface) of the embossed portion and the embossed contact portion and the other connecting member. The terminal can be hit, and the slit is not affected by the deformation of the member that occurs when the slit is opened (opened).

Further, the embossed portion is constituted by an end surface portion corresponding to the bottom of the embossed portion, and four surface portions continuous from the surface portion of the member main body to four edges of the end surface portion, and the slits are opposed to each other. It can be formed from one surface portion to the other surface portion facing through the end surface portion, and the embossed portion is an end surface portion continuous with the surface portion of the member main body, and a bulging surface portion opposite to this end surface portion Are formed at the edges of each other, and this edge is formed into a ridge line a, and the two ridges are formed with the ridge line a as a boundary. The slit straddles the end face portion and the bulging surface portion. May be formed.

According to the connecting structure between members according to the present invention, when the one connecting member is an upper trim and the other connecting member is a lower trim, the upper trim and the lower trim are provided. Can be connected without using secondary processing such as welding, and without using fixing members such as screws.

[Brief description of the drawings]

FIG. 1 is a front view of an automobile door trim having a connection structure between members according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line XX of FIG.

FIG. 3 is an exploded perspective view of a connection structure between members according to the embodiment of the present invention.

FIG. 4 is a side view of an embossed portion in a connection structure between the members.

FIG. 5 is a side view of the insertion pin in the connection structure between the members.

FIG. 6 is a front view of another embodiment of the embossed portion in the connection structure between the members.

FIG. 7 is a sectional view of another embodiment of the connection structure between members.

FIG. 8 is a sectional view of a conventional connection structure between members.

FIG. 9 is a cross-sectional view of a conventional connection structure between other members.

FIG. 10 is a cross-sectional view of a conventional connection structure between other members.

[Explanation of symbols]

 2 Upper trim (one connecting member) 3 Lower trim (the other connecting member) 4 Embossed portion 10 Slit 11 Insertion pin 13 Lower rib 13C Terminal 14 Embossed contact portion A Tip position

Claims (4)

[Claims] An embossed portion having at least two surfaces is provided on a member main body of one connecting member, and an inclined surface portion is provided on an inner surface of the embossed portion, and at least two embossed portions are provided on the embossed portion.
A slit extending across the surface is provided, and a member pin of the other connecting member is provided with an insertion pin having a hook at a tip end thereof, and a rib is provided to extend from the surface of the other connecting member to the insertion pin. The edge of the rib is formed as an embossed portion, the insertion pin is inserted into the slit, and the embossed portion of the rib is brought into contact with the inclined surface of the embossed portion while the slit is penetrated. A member characterized in that the terminal of the other connecting member is brought into contact with the inner surface of the embossed portion, so that the tip position of the embossed contact portion is located closer to the end of the slit. Connection structure between. 2. The embossed portion comprises an end face portion corresponding to the bottom of the embossed portion, and four face portions connected to four edges of the end face portion from the face portion of the member main body. The connecting structure between members according to claim 1, wherein the connecting structure is formed from the one surface portion to the other opposite surface portion via the end surface portion. 3. The embossed portion is formed by joining an end surface portion connected to a surface portion of the member main body and a bulging surface portion opposite to the end surface portion with each other at an edge portion, and forming the edge portion as a ridge line, The connecting structure between members according to claim 1, wherein the slit is formed so as to extend over the end surface and the bulging surface, the surface being configured as two surface portions with the ridge line as a boundary. 4. The connecting structure between members according to claim 1, wherein the one connecting member is an upper trim and the other connecting member is a lower trim.