JPH04300744A - Welt body side for automobile - Google Patents

Abstract

PURPOSE:To provide a welt body side to improve slip-out preventing effect from a flange part for the welt body side inserted and fixed with the flange part of a vehicle body side panel, and not to tilt against the flange part. CONSTITUTION:A welt body side for an automobile is constituted so that at least on one side of the inner wall part of the welt body side 11 having a nearly U-shaped section inserted and fixed with the flange part 9 of a body side panel, a hollow swollen part 21 of which the section is formed into a nearly parallelogram, ribs 21a, 21a are formed in one body in parallel inside it, and inclined form by prescribed angle theta is held in the reverse direction of insetting direction D, against the perpendicular line C to the flange part 9 from the inner wall part.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welt body side that is attached to a flange portion of an inside panel of an automobile.

0002

2. Description of the Related Art Conventionally, as shown in FIG. 5, which is a sectional view taken along the line A-A of the automobile 1 in FIG.
A configuration in which a welt body side 11 is attached to the end portion of the ceiling material 7 is adopted.

Generally, such a welt body side 1
1, as shown in the enlarged view of FIG. 6, a coating material 15 made of resin or rubber and having a substantially U-shaped cross section is coated on the outside of the core material 13, and the flange portion 9 is provided on the inner wall surface of the coating material 15.
A plurality of retaining lips 1 serve as elastic bodies that hold both sides of the
7 and 17 are provided protrudingly.

According to the configuration of the welt body side 11, the flange portion 9 inserted into the welt body side 11 is supported by the holding lips 17, 17 from both sides.

However, if the clamping force of the holding lips 17, 17 is insufficient, the welt body side 11 tilts from side to side with respect to the flange portion 9, and the posture of the welt body side 11 becomes unstable. On the other hand, if the clamping force of the retaining lips 17, 17 is made strong, the force required to insert the flange portion 9 will increase, and the workability during assembly will decrease. have.

[0006] In order to deal with the above, Utility Model Application No. 59-187
No. 544 discloses that, as shown in FIG. 7, retaining lips 17, 17 similar to those shown in FIG. 6 are provided protrudingly on the inner wall surface of one side of the covering material 15 constituting the welt body side 11, and retaining lips 17, 17 similar to those shown in FIG. An example is disclosed in which a hollow bulging body 19 is provided on the inner wall surface.

According to this welt body side 11, even when the holding lips 17, 17 have a strong clamping force, the hollow bulge 19 is not deformed appropriately when the flange portion 9 is inserted. The insertability is maintained well, and after the flange portion 9 is inserted, the hollow bulging body 19 is pressed against the surface of the flange portion 9, so that an appropriate clamping force for the flange portion 9 is obtained, and workability is improved. It is characterized by the fact that it does not decrease.

[0008]

[Problems to be Solved by the Invention] However, in the case of such a conventional welt body side 11, especially in the case of the structure shown in FIG. When an external force is applied in direction B, the hollow bulging body 19 may deform irregularly, reducing the ability to prevent it from coming off the flange portion 9. Since the reaction force that prevents this from occurring only acts on the upper side 19a of the hollow bulge 19, the welt body side 11 tilts relative to the flange 9 due to the external force in the direction B, as shown in FIG. The problem was that it was easy.

Therefore, the present invention solves the problems that the conventional welt body side has, improves the effect of preventing the welt body side from coming off from the flange part, and
Another object of the present invention is to provide a welt body side that can be prevented from tilting relative to a flange portion.

0010

[Means for Solving the Problems] In order to achieve the above object, the present invention has a substantially U-shaped cross section into which a flange portion of a vehicle body side panel is inserted and fixed, and the flange portion is attached to an inner wall surface. A welt body side for an automobile is provided with a protruding elastic body that clamps both surfaces, and at least one side of the inner wall surface has a substantially parallelogram cross section and is integrally molded with parallel ribs inward. and a welt body side for an automobile provided with a hollow bulge that maintains a shape inclined at a predetermined angle in a direction opposite to the direction of insertion into the flange from a vertical line from the inner wall surface to the flange. It is configured.

[0011]

[Operation] According to this configuration, when inserting the welt body side into the flange portion of the vehicle body side panel, the hollow bulging body and the rib integrally formed on the hollow bulging body move in the opposite direction to the insertion direction. Since it is slanted, a large external force is not required during insertion, resulting in good insertion workability.

[0012] After the welt body side is inserted, when an external force is applied to the welt body side in the direction of pulling it out of the flange, the hollow bulging body protruding from the inner wall surface of at least one side of the welt body side moves from the flange. The inclination angle formed between the welt body side and the flange portion is deformed in a direction that decreases, the contact resistance between the hollow bulge body and the flange portion increases, and the effect of preventing the welt body side from coming off from the flange portion is enhanced. . Furthermore, during the above operation, the ribs integrally molded in parallel within the hollow bulging body prevent irregular deformation of the hollow bulging body, and the change in shape of the parallelogram is suppressed to a minimum. The presence of the welt body increases the contact resistance between the hollow bulge and the flange portion, thereby increasing the effect of preventing the welt body side from coming off.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Various embodiments of a welt body side for an automobile according to the present invention will be described in detail below with reference to the drawings, with the same reference numerals being given to the same components as in the conventional structure.

FIG. 1 shows a welt body side 11 according to a first embodiment of the present invention, and numeral 13 in the figure is a core material, and on the outside of this core material 13 there is a cross-section of resin or rubber. It is covered with a U-shaped covering material 15.

On one side of the inner wall surface of this sheathing material 15, one or more retaining lips 17 (see FIG. In the illustrated example, two protruding pieces are provided. This holding lip 17 has a shape that is appropriately inclined in a direction opposite to the insertion direction D of the welt body side 11 into the flange portion 9.

On the other side of the inner wall surface of the covering material 15, there is provided a hollow bulging body 21 in which parallel ribs 21a, 21a are integrally molded.

The hollow bulging body 21 has a substantially parallelogram-like cross section, and includes the ribs 21a, 21a, along a line C in the vertical direction to the flange portion 9 to be inserted and fixed.
The welt body side 11 is formed so as to be inclined at a predetermined angle θ in a direction opposite to the insertion direction D of the welt body side 11 into the flange portion 9 . Moreover, the above-mentioned ribs 21a, 21
a has a function of maintaining the parallelogram shape of the hollow bulging body 21.

According to the configuration of the welt body side 11, when the welt body side 11 is inserted in the direction of the flange portion 9 as shown by the arrow D, the holding lip 17 and the hollow bulge 19 are attached to the flange. Since the welt body side 11 is inclined in a direction opposite to the insertion direction D into the section 9, a large external force is not required when inserting the welt body side 11 into the flange section 9, and the insertion workability is good.

After the welt body side 11 is inserted, when an external force is applied to the welt body side 11 in the direction B in which it comes out of the flange portion 9 as shown in FIG. The retaining lip 17 protruding from the inner wall surface and the hollow bulging body 21 provided on the other inner wall surface have the shape shown by the imaginary line in the figure, that is, FIG.
The contact resistance between the retaining lip 17 and the hollow bulge 21 and the flange portion 9 increases, and the contact resistance between the retaining lip 17 and the hollow bulge 21 and the flange portion 9 increases. The anti-falling effect is enhanced.

During the above operation, changes in the shape of the parallelogram of the hollow bulging body 21 are minimized by the ribs 21a, 21a integrally molded in parallel within the hollow bulging body 21, so that the ribs 21a, 21a Due to the presence of hollow bulge 2
The contact resistance between the welt body side 11 and the flange portion 9 is further increased, and the effect of preventing the welt body side 11 from coming off can be enhanced.

FIG. 3 shows a second embodiment of the present invention,
The basic configuration of this second embodiment is the same as that of the first embodiment, and is designated by the same reference numerals.

In this second embodiment, a pair of hollow expansion ribs 21a, 21a are integrally molded in parallel on both sides of the inner wall surface of the covering material 15 constituting the welt body side 11, as in the first embodiment. Extrusions 21, 21 are provided.

According to the second embodiment, the first
Unlike the embodiment, hollow bulges 21, 21 are provided on both sides of the inner wall surface of the covering material 15, so that the effect of preventing the welt body side 11 from coming off from the flange portion 9 is improved compared to the first embodiment. Can be done.

Furthermore, a hollow bulge 21 for the flange portion 9
, 21 are equal on the left and right sides, so that the welt body side 11 does not tilt relative to the flange portion 9 due to an external force in the direction in which the welt body side 11 comes off.

Therefore, as explained in the first and first embodiments, in the present invention, at least one side of the inner wall surface of the covering material 15 having a substantially U-shaped cross section is configured to have a substantially parallelogram in cross section,
It is characterized by providing a hollow bulging body 21 in which ribs 21a, 21a are integrally molded in parallel in parallel and maintains a shape inclined by a predetermined angle θ in the direction opposite to the direction of insertion into the flange portion 9. It is something to do.

[0026]

As described above in detail, the structure of the automobile welt body side according to the present invention provides the following effects.

That is, since the hollow bulging body and the rib integrally formed on the hollow bulging body are inclined in the direction opposite to the insertion direction into the flange portion of the vehicle body side panel, the welt body side is inserted into the flange portion. A large external force is not required during insertion, and insertion workability can be maintained favorably.

Furthermore, even if an external force is applied to the welt body side in the direction of pulling it out of the flange after the welt body side is inserted, the hollow bulge protruding from the inner wall surface of at least one side of the welt body side Since the contact resistance between the body and the flange increases, it becomes possible to effectively prevent the welt body side from coming off from the flange.

Furthermore, the ribs integrally molded in parallel within the hollow bulging body prevent the hollow bulging body from being irregularly deformed, and also minimize changes in the shape of the parallelogram of the hollow bulging body. Therefore, due to the presence of the rib, the contact resistance between the hollow bulge and the flange portion is increased, and the effect of preventing the welt body side from coming off can be enhanced. In particular, by providing the hollow bulges on both sides of the inner wall surface, an effect is achieved in that the welt body side does not tilt relative to the flange portion due to the force in the pulling direction.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the structure of a first embodiment of an automobile welt body side according to the present invention.

FIG. 2 is a sectional view showing the operation mode of the first embodiment.

FIG. 3 is a sectional view showing the structure of a second embodiment of the present invention.

FIG. 4 is a schematic diagram showing a normal automobile.

FIG. 5 is a sectional view taken along line AA in FIG. 4;

FIG. 6 is a cross-sectional view of main parts showing an example of conventional welt body side assembly.

FIG. 7 is a sectional view of a main part showing an example of the shape of another conventional welt body side.

8 is a cross-sectional view showing the operation mode of the welt body side shown in FIG. 7. FIG.

9 is a sectional view showing another operational mode of the welt body side shown in FIG. 7. FIG.

[Explanation of symbols]

9...Flange part, 11...Welt body side, 13...
Core material, 15... Covering material, 17... Holding lip, 21... Hollow bulging body, 21a... Rib.

Claims (1)

[Claims] 1. A welt body for an automobile, which has a substantially U-shaped cross section into which a flange portion of a vehicle body side panel is inserted and fixed, and has elastic bodies protruding from the inner wall surface to clamp both sides of the flange portion. On the side, on at least one side of the inner wall surface, the cross section is configured to be a substantially parallelogram, and parallel ribs are integrally molded inward, and from a vertical line from the inner wall surface to the flange portion,
A welt body side for an automobile, characterized in that a hollow bulge is provided that maintains a shape inclined at a predetermined angle in a direction opposite to the direction of insertion into the flange portion.