JP3465740B2 - Connection structure between members - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for connecting members such as an upper trim and a lower trim in a door trim of a vehicle door.

[0002]

2. Description of the Related Art As a connection between an upper trim and a lower trim in a door trim of a conventional automobile door, a mounting hole 32 is provided in a lower portion of an upper trim 30 and an upper portion of a lower trim 31 is connected as shown in FIG. A boss portion 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 portion 33. In some cases, the boss portion 33 is screwed to perform the operation.

In order to connect the upper trim and the lower trim in the door trim of a conventional automobile door, a mounting hole 36 is provided in the lower portion of the upper trim 30 and an upper portion of the lower trim 31 is connected as shown in FIG. A hollow welding pin 37 with a rib 38 is provided on the lower end of the rib 38, the welding pin 37 is inserted into the mounting hole 36, and the end portion 38a of the rib 38 is brought into contact with the lower portion of the upper trim 30. The end 31a of the upper trim 30 is brought into contact with the upper trim 30, and the lower portion of the upper trim 30 is overlapped with the upper portion of the lower trim 31 to form the welding pin 37.
There was a device in which the portion protruding from the mounting hole 36 was heat-crimped.

Further, as a connection between an upper trim and a lower trim in a door trim of a door of a conventional automobile, as shown in FIG. 10, an embossed portion 43 is provided at a lower portion of the upper trim 30, and the embossed portion 43 is connected to the embossed portion 43 . A mounting hole 39 is provided on the end face, a hollow welding pin 41 with a rib 40 is provided on the upper portion of the lower trim 31, the welding pin 41 is inserted into the mounting hole 39, and the inclined portion 42 of the rib 40 is embossed. in contact with the lower inclined surface 43 a of the parts 43, the upper inclined surface 43 of the embossed portion 43 to the terminal 31a of the lower trim 31
In some cases, the lower part of the upper trim 30 is overlapped with the upper part of the lower trim 31 by abutting on b, and the portion of the welding pin 41 projecting from the mounting hole 39 is thermally caulked.

[0005]

However, in the above-described conventional connecting structure of the upper trim and the lower trim, secondary processing such as screwing or welding is required, and the welding is Two parts to connect (upper trim 3
If 0 and the lower trim 31) do not have the physical properties in which the thermal expansion and contraction values are close to each other, there is a problem that distortion occurs between the fixed points.

Further, in the connecting structure of the upper trim and the lower trim shown in FIG. 9, the end 31a of the lower trim 31 is provided.
There is a problem in that the position of the contact point (a) at which the abutment contacts the upper trim 30 is affected by the processing variation of the mounting hole 36 of the upper trim 30.

Further, in the connecting structure of the upper trim and the lower trim shown in FIG. 10, the welding pin 41 and the mounting hole 3 are provided.
In order to match the 9, an inclined portion 42 of the rib 40 abuts against the lower inclined surface 43 a of the embossed portion 43, also if the terminal 31a of the lower trim 31 abut against the upper inclined surface 43 b of the embossed portion 43 There was a problem that it did not happen.

The present invention has been made in view of the above conventional problems, and an object thereof is to eliminate the need for secondary processing such as welding when connecting one and the other connecting members. In addition, in addition to the need for fixing members such as screws, there is a need to provide a connecting structure between members that is not affected by member deformation that occurs when the slit widens (opens). is there.

[0009]

In order to achieve the above object, in the connecting structure between members according to the invention of claim 1, an embossed portion having at least two surfaces is provided on the 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 pin of the other connecting member is provided with an insertion pin having a hook portion at its tip end, A rib is provided so as to extend from the surface portion of the other connecting member to the insertion pin, the edge portion of the rib is formed as an embossing contact portion, the insertion pin is inserted into the slit, and the slit is penetrated. The embossing contact part of the rib is brought into contact with the inclined surface part of the embossing part, and the end of the other connecting member is brought into contact with the inner surface of the embossing part, End position, characterized in that so as to be positioned in front of the end of the slit.

With this construction, the insertion pin is inserted into the slit, and the embossing contact portion of the rib is brought into contact with the inclined surface portion of the embossing portion while the slit is penetrated, and the end of the other connecting member is embossed. One connecting member and the other connecting member can be connected to each other by abutting on the inner surface of the part. Therefore, when connecting one connecting member and the other connecting member to each other, secondary processing such as welding is unnecessary, and a fixing member such as a screw is not necessary.

Further, the tip position of the embossing contact portion is
Since it comes to be located in front of the end portion of the slit, it is possible to bring the embossed contact portion into contact with the inclined surface portion of the embossed portion and the end of the other connecting member into contact with the inner surface of the embossed portion. As a result, it is possible to apply the embossing contact portion and the end of the other connecting member to the portion where the shape is surely projected, that is, the inner surface (inclined surface portion) of the embossing portion, and the slit widens (opens). It is not affected by the member deformation that occurs at that time.

Further, in order to achieve the above object, the connecting structure between members according to the invention of claim 2 is the connecting structure between members according to claim 1, wherein the embossed portion is the bottom of the embossed portion. An end surface portion corresponding to, and four surface portions that are continuous from the surface portion of the member main body to the four edge portions of the end surface portion, and the slit is the other surface portion that faces from one surface portion that faces through the end surface portion. Formed over.

With this configuration, the same operational effect as the operational effect of the invention of claim 1 can be obtained.

In order to achieve the above object, the connecting structure between members according to the invention of claim 3 is the connecting structure between members according to claim 1, wherein the embossed portion is a surface part of the member main body. The end surface part continuous with the end surface part and the bulging surface part on the side opposite to the end surface part are joined together at their edges, and this edge part is formed as a ridge line, and the ridge line serves as a boundary to form two surface parts. The slit was formed so as to straddle the end surface portion and the bulging surface portion.

With this structure, the same operational effect as the operational effect of the invention of claim 1 can be obtained.

In order to achieve the above object, the connecting structure between members according to the invention of claim 4 is the connecting structure between members according to claim 1 or 2 or 3. Is the upper trim, and the other connecting member is the lower trim.

With this configuration, the upper trim and the lower trim are connected without using a secondary process such as welding, and
It can be performed without using a fixing member such as a screw.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

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

In the figure, 1 is a door trim, and this door trim 1 is an upper trim 2 which is one of the connecting members.
And the lower trim 3, which is the other connecting member, are connected to each other by the connecting structure F between members according to the present invention. The connecting structure F between the members is the upper trim 2
And the slit 10 formed in the embossed portion 4, and the insertion pin 11 provided in the lower trim 3.
And the embossing contact portion 14 are generally configured.

At the lower portion of the upper trim 2, an embossed portion 4 is formed as shown in FIG. The embossed portion 4 forms a mountain-shaped swelling portion having a rectangular end surface portion 5 corresponding to the bottom of the embossed portion 4 as a top portion. That is, the embossed portions 4 includes, in addition to the end face 5, an upper surface portion 6 which is inclined downwardly continuing from surface portion 2a of the upper tri <br/> beam 2 on the upper edge of the end surface portion 5, the upper trim 2 surface 2a To end face 5
A lower surface portion 7 which is inclined upwardly connected to the lower edge of the upper trim
2 includes a left surface portion 8 extending from the surface portion 2a of the upper trim 2 to the left edge of the end surface portion 5 and a right surface portion 9 extending to the right edge of the end surface portion 5 from the surface portion 2a of the upper trim 2. Cage,
The embossed portion 4 has a slit 10 extending from the left surface portion 8 through the end surface portion 5 to the right surface portion 9.

The upper portion of the lower trim 3 is shown in FIG.
As shown in FIG. 5, a plate-shaped insertion pin 11 is formed, and the insertion pin 11 has a barbed portion 12 at its tip, and as shown in FIG. 5, the jaw portion 1 of the barbed portion 12 is formed .
The angle α of the hanging portion 12B of 2A is 45 degrees or less,
The angle β on the front 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 made larger than the thickness T2 of the slit 10. Further, the thickness dimension T3 of the insertion pin 11 is made substantially equal to the thickness dimension T2 of the slit 10, as shown in FIG.
Thus, the width dimension B1 of the insertion pin 11 is made substantially equal to the width dimension B2 of the slit 10.

An upper rib 13A extends from the surface portion 3a of the lower trim 3 to the upper surface portion 11a of the insertion pin 11.
Yes it formed, <br/> Ru Oh forms form the lower rib 13 extending over the lower surface portion 11b of the bayonet 11 from surface 3a of the lower trim 3. The lower edge portion of the lower rib 13 is the embossed portion 4
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 tip side thereof is cut at a right angle to the insertion pin 11, and this lower edge portion is the embossed contact portion. It is set to 14.

Then, the insertion pin 1 of the lower trim 3
The barbed portion 12 of No. 1 is inserted into the slit 10 of the embossed portion 4 of the upper trim 2, and the embossed contact portion 14 of the lower rib 13 and the inner surface of the lower surface portion 7 of the embossed portion 4 in a state where the slit 10 is penetrated. The upper trim 2 and the lower trim 3 are connected to each other by abutting on the (inclined surface portion) and by abutting the upper end 3C of the lower trim 3 on the inner surface of the upper surface portion 6 of the embossed portion 4.

In this case, the tip position a of the embossing contact portion 14 of the lower rib 13 is the end portion of the slit 10 (embossing portion 4).
End portions of the slits 10 formed on the left and right surface portions 8 and 9)
It is located in front of 10a (opposite to the inserting direction of the inserting 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 made larger than the thickness T2 of the slit 10. In addition, the slit 10 is expanded, but since 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. Further, when the barbed portion 12 of the insertion pin 11 penetrates the slit 10, the slit 10 is closed and the insertion pin 11 is sandwiched.

According to the above-described embodiment, the barbed portion 12 of the insertion pin 11 is replaced by the slit 10 of the embossed portion 4.
And the slit 10 is penetrated, the embossed contact portion 14 of the lower rib 13 is brought into contact with the inner surface of the lower surface portion 7 of the embossed portion 4, and the upper end 3C of the lower trim 3 is embossed portion 4. Since the upper trim 2 and the lower trim 3 can be connected to each other by coming into contact with the inner surface of the upper surface portion 6 of the above, when the upper trim 2 and the lower trim 3 are connected to each other, it is possible to prevent Subsequent processing is unnecessary, and fixing members such as screws are unnecessary.

Also, the embossing contact portion 14 of the lower rib 13
Since the tip position a of the lower rib 13 is located in front of the end 10a of the slit 10, the embossing contact portion 14 of the lower rib 13
Can be brought into contact with the inner surface of the lower surface portion 7 of the embossed portion 4, and the upper end 3C of the lower trim 3 can be brought into contact with the inner surface of the upper surface portion 6 of the embossed portion 4, so that the shape is surely obtained. It is possible to apply the embossing contact portion 14 and the upper end 3C of the lower trim 3 to the existing portion, that is, the lower surface portion 7 and the upper surface portion 6 of the embossed portion 4, and when the slit 10 widens (opens). It is not affected by the trim deformation that occurs in the.

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

As the embossed portion 4, as shown in FIG. 6, a substantially circular end face portion 20 which is continuous with the face portion 2a of the trim body 2A, and the face portion 2a of the trim body 2A opposite to the end face portion 20. The bulging surface portion 21 may be matched with the peripheral edge portion 22 of the end surface portion 20, and this matching portion may be formed into a ridge line (b). In this case, 2
There are two surface portions (the end surface portion 20 and the bulging surface portion 21). Then, the embossed portion 4 is provided with a slit 10 extending over the end surface portion 20 and the bulging 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 penetrating, the embossed contact portion of the lower rib 13. 14 is brought into contact with the inner surface of the embossed portion 4, and the upper end 3 of the lower trim 3 is
The upper trim 2 and the lower trim 3 are connected to each other by abutting C on the inner surface of the upper surface 6 of the embossed portion 4. In this case, the tip position a of the embossing contact portion 14 of the lower rib 13 is located in front of the end portion 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 made larger than the thickness T2 of the slit 10. In addition, although the slit 10 expands, this expansion is easily performed because the slit 10 is formed so as to straddle each of the two surface portions (the end surface portion 20 and the bulging surface portion 21). Also, insert pin 1
When the barbed portion 12 of No. 1 penetrates the slit 10, the slit 10 is closed to sandwich the insertion pin 11.

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

[0035]

As described above, according to the structure for connecting members according to the present invention, the insertion pin is inserted into the slit, and the embossing contact portion of the rib with the embossing portion The one end of the other connecting member can be brought into contact with the inner surface of the embossed portion while being in contact with the inclined surface portion, so that one connecting member and the other connecting member can be connected to each other. Therefore, when connecting one connecting member and the other connecting member to each other, secondary processing such as welding is unnecessary, and a fixing member such as a screw is not necessary.

Further, since the tip position of the embossing contact portion comes to be located before the end portion of the slit, the embossing contact portion is brought into contact with the inclined surface portion of the embossing portion, and
The end of the other connecting member can be brought into contact with the inner surface of the embossed portion, and the embossed portion and the other connecting member of the other connecting member on the inner surface (inclined surface portion) of the embossed portion where the shape is surely projected. It is possible to hit the terminal, and it is not affected by the member deformation that occurs when the slit is opened (opened).

Further, the embossed portion is composed of an end face portion corresponding to the bottom of the embossed portion and four face portions connected from the face portion of the member main body to the four edge portions of the end face portion, and the slits face each other. It can be formed from one surface portion to the other surface portion that faces the end surface portion through the end surface portion, and the embossed portion is an end surface portion that is continuous with the surface portion of the member body, and a bulging surface portion that is opposite to the end surface portion. And the edge portions are aligned with each other to form a ridge line a, and the ridge line a is used as a boundary to form two surface portions, and the slit extends over the end surface portion and the bulging surface portion. You may form it.

Further, according to the connecting structure between members according to the present invention, when the one connecting member is the upper trim and the other connecting member is the lower trim, the upper trim and the lower trim are arranged. Can be connected to each other without using a secondary process such as welding and without using a fixing member such as a screw.

[Brief description of drawings]

FIG. 1 is a front view of an automobile door trim provided with a connecting structure between members as a first embodiment of the present invention.

FIG. 2 is a 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 the connection structure between the members.

FIG. 5 is a side view of the insertion pin in the connecting 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 cross-sectional view of another embodiment of a connection structure between members.

FIG. 8 is a cross-sectional view of a conventional connecting structure between members.

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

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

[Explanation of symbols]

2 Upper trim (one connecting member) 3 Lower trim (other connecting member) 3C Upper end (end) 4 Embossing part 10 Slit 11 Insertion pin 13 Lower rib 14 Embossing contact part a Tip position

Claims (4)

(57) [Claims] 1. A member main body of one connecting member is provided with an embossed portion having at least two surfaces, an inclined surface portion is provided on an inner surface of the embossed portion, and at least 2 is formed in the embossed portion.
A slit extending over the surface is provided, and an insert pin having a hook portion at its tip is provided on the member main body of the other connecting member, and a rib is provided across the insert pin from the surface portion of the other connecting member. The rib is provided with an edge portion as an embossing contact portion, the insertion pin is inserted into the slit, and the embossing contact portion of the rib contacts the inclined surface portion of the embossing portion in a state where the slit is penetrated. A member characterized in that, while being in contact with each other, the end 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 in front of the end portion of the slit. Connection structure between. 2. The embossed portion is composed of an end face portion corresponding to the bottom of the embossed portion and four face portions connected from the face portion of the member main body to the four edge portions of the end face portion, and the slits are opposed to each other. The connecting structure between members according to claim 1, wherein the connecting structure is formed from one surface portion to the other surface portion that faces 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 their edge portions, and forming the edge portion into a ridge line, The connecting structure between members according to claim 1, wherein the slit is formed to have two surface portions with the ridge line as a boundary, and the slit is formed across the end surface portion and the bulging surface portion. 4. The connecting structure between members according to claim 1, 2, or 3, wherein the one connecting member is an upper trim and the other connecting member is a lower trim.