JPS6033149A - Setting method of molding carrying thin part - Google Patents

Abstract

PURPOSE:To improve adhering strength in a thin part ever so strong, by situating such a pressing piece part as being formed so as to fill up a step differential part between both thin and thick parts of molding, onto the thin part, while sticking it to the thin part with a pressing mamber via the pressing piece under pressure. CONSTITUTION:A jig 9 is inserted into a clearance Y lying between a door 3 and a front fender part 1 and installed therein so as to cause its pressing piece part 9d to direct the rearward. Next, a thin part 4a of door molding 4 is inserted into space between the pressing piece part 9d and the door 3, making an end face 4c of the thin part 4a contact a reference plane 9g of the jig, and positioning for the molding 4 in its longitudinal direction takes place. After the positioning of the molding 4 in its vertical directions is over, the door 3 is forcibly pressed to a pressing roller 12 and moved to some extent and thereby pieces of molding 4 and 2 are made to adhere with a bonding agent under pressure.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for adhering a molding having a 7'8 round part to a vehicle body for adhering a molding having a thin walled part at one end to a vehicle body.

(Prior Art) In automobiles, a molding called a side protector molding is often attached to the side of the vehicle body.Since this molding is attached over the entire length of the vehicle body, for example, it is attached to the front fender section. , the door section, rear fender section, etc. and are installed separately.

Among these moldings, moldings that are attached to doors in particular (hereinafter referred to as door moldings) have a thinner wall at the end near the center of rotation of the door than other parts, so that when the door is opened, The door moldings are designed to prevent interference with the fenders and other parts of the vehicle body.

Incidentally, such a molding is usually temporarily bonded to a small body with adhesive and hot melt applied to the back surface, and then, as shown in Japanese Utility Model Application Publication No. 55-147270, a pressing roller or the like is used. It is pressed onto the vehicle body using a pressing member.

However, in this conventional molding, there was a problem in that the A-circle portion of the molding was not sufficiently pressed by the pressure roller, and its adhesion was likely to be insufficient. That is, when the suppression roller sequentially presses the molding from one end in the longitudinal direction to the other end while displacing relative to the vehicle body in the longitudinal direction, the suppression roller jumps over the thin wall part to some extent. Because of the movement, sufficient pressure bonding to the thin portion was not achieved, resulting in poor adhesion. For this reason, although various improvements have been made to the structure of the suppression roller, it is still not completely satisfactory.

In addition, conventionally, the vertical positioning of moldings has been done accurately using jigs, but the positioning in the longitudinal direction is currently done by visual inspection by workers. were often installed with a slight positional shift in the longitudinal direction.

(Object of the Invention) The present invention solves the above-mentioned problems, and allows a molding having a thin walled portion at one end to be properly positioned and mounted in its longitudinal direction, and also allows the thin walled portion of the molding to be mounted on the vehicle body. It is an object of the present invention to provide a method for bonding a molding having a thin wall portion, which enables sufficient pressure bonding, that is, sufficient bonding strength to the molding.

(Structure of the Invention) In order to achieve the above-mentioned object, the present invention uses a jig having a suppressing piece shaped so as to fill the space between the step between the thin part and the thick part of the molding. Assuming that,
It consists of the following three steps. Namely.

In the first step, the jig is fixed to the vehicle body side.

In the second step, a thin part of the molding whose back surface is coated with adhesive is inserted between the suppressing piece part and the outer surface of the vehicle body,
The end face of the thin-walled part of the molding is brought into contact with the jig to position it in the longitudinal direction, and in a third step, a pressing member such as a pressing roller is displaced relative to the car body in the longitudinal direction of the molding. Then, the thick part of the molding is pressed to the heavy body by the suppressing member, and the thin part of the molding is pressed to the vehicle body via the suppressing piece part.

(Embodiment) In FIG. 1, a molding is attached to the side surface of a vehicle body A over almost its entire length in the longitudinal direction. The front and rear fender moldings 2 and 6 are separated by the front and rear wheel arch portions 7.8 of the vehicle body A. Then, each of them is divided into two parts. The front end portion of the door molding 4, that is, the end portion on the rotation center side of the door 3, is made into a thin wall portion 4a so that the door molding 4 does not interfere with the rear end edge of the front fender portion l when the door 3 is opened. , the other portion is a thick wall portion 4b that is thicker than the thin wall portion 4a.

2 and 3 show a jig 9 used when attaching the door molding 4, and in the embodiment, the jig 9 is an integrally molded product made of a rubber magnet.

This jig 9 has a first reference surface 9b whose back surface side of the main body portion 9a abuts against the outer surface of the vehicle body A, that is, the molding mounting surface.
A positioning protrusion 9C is provided in a protruding manner at an intermediate portion of the first reference surface 9b in the front-rear direction (left-right direction in FIG. 2). The width of this protrusion 9C in the longitudinal direction is approximately equal to the gap (parting line) Y between the front edge of the door 3 and the rear edge of the front fender portion l.

The thickness of the main body portion 9a of the jig 9 is 1. is substantially the same as the thickness of the thick portion 4b of the door molding 4, and a suppressing piece 9d projects from the rear end surface (right end surface in FIG. 2) of the main body portion 9a. The outer surface (lower side surface in FIG. 2) of this suppressing piece portion 9d is flush with the outer surface of the main body portion 9a, and its thickness t2 is equal to the thickness t3 of the thin wall portion 4a of the door molding 4.
) and the thickness tl) of the thick portion 4b. The protruding length S of the pressing piece 9d is approximately equal to the length of the thin wall portion 4a of the door molding 4. In this way, the suppressing piece portion 9d has a shape that fills the space between the step portion between the thin wall portion 4a and the thick wall portion 4b of the door molding 4, that is, the shape is such that the extension surface of the outer surface of the thick wall portion 4b and the outer surface blood of the thin wall portion 4a are formed. The shape corresponds to the shape of the space defined between the two.

On the rear surface 9e side of the pressing piece 9d of the jig 9, between the pressing piece 9d and the extension surface of the reference surface 9b, there is a same length and the same thickness as the thin wall part 4a of the door molding 4. A thin wall insertion space 9f is formed, and the rear end surface of the main body 9a that partitions the insertion space 9f in the rtη direction (left side in FIG. 2) has an end surface 4C on the thin wall section 4a side of the door molding 4. The second reference surface 9g is abutted.

Next, using the jig configured as above, the door molding 4
The method of adhering the door 3 to the door 3 will be explained in sequence below.

First, as shown in FIG.
d faces rearward, insert the protrusion 90 into the gap Y between the front edge of the door 3 and the rear edge of the front fender part l, and insert the first reference surface 9b between the door 3 and the front fender l. Apply it closely to the outer surface of part l. Of course, the jig 9 is
As mentioned above, since it is made of magnetic rubber, the above-mentioned close contact is reliably achieved by magnetic force.

Next, as shown in FIGS. 5 and 6, the thin wall portion 4a of the door molding 4 is inserted between the pressing piece portion 9d and the surface of the door 3, and the end surface 4C on the side of the thin wall portion 4a is inserted into the jig 9. 22nd!
! It is brought into contact with the i semi-surface 9g. Thereby, the door molding 4 is positioned relative to the door 3 in the longitudinal direction. That is, when the jig 9 is attached to the vehicle body A as shown in FIG. 4, the position of the second reference surface 9g in the longitudinal direction with respect to the door 3 is determined, so that the end surface of the door molding 4 is placed on the second reference surface 9g. By bringing 4C into contact,
Then, the positioning of the door molding 4 with respect to the door 3 in the front-rear direction is automatically performed.

Here, the vertical positioning of the door molding 4 may be performed using a jig (not shown), as in the conventional case. Of course, the back side of this door molding 4 is coated with hot melt lO1 adhesive 11 in advance as shown in FIG.
In a state where the positioning with respect to the door 3 has been performed as described above, the door molding 4 is temporarily bonded to the door 3. In addition, the molding 2 for the front 7 entrance part l is the rear end surface 2.
a is on the third reference plane 9h corresponding to the front end surface of the jig 9'! !
3, and positioning in the longitudinal direction is performed, and positioning in the vertical direction and temporary adhesion to the front fender portion l are performed in the same manner as the door molding 4.

After this, as shown in FIG. 8, the door 3 (vehicle body A) is moved in the longitudinal direction of the I-amole 4 with respect to the suppression roller 12 as a suppression member, and the suppression roller 12 moves the door 3 (vehicle body A) to the mall 4. 2 should be crimped. During this press-fitting, the thick portion 4b of the door molding 4 is directly pressed by the pressure roller 12, and the thin portion 4a is pressed by the pressure roller 12 via the pressure piece 9d. Since the sum of the thicknesses of the pressing piece portion 9d and the thin portion 4a is approximately the same as the thickness of the thick inner portion 4b, the pressing roller 12
moves smoothly between the thick part 4b and the thin part 4a, and reliably presses the thin part 4a with a predetermined pressure.

Of course, the other moldings 2 are also pressed by the pressing roller 12.

Although the embodiments have been described above, the present invention is not limited thereto, and includes, for example, the following cases.

(When performing molding pressing work using the pressing roller 12, the vehicle body A may be fixed and the pressing roller 12 may be moved.

■The back surface 9e of the pressing piece 9d may be a tapered surface that gradually moves toward the outer surface of the main body 9a as it goes from the main body 9a to the tip. becomes easier.

■ To use the jig 9 to clamp the door molding 4 with a difference in position in the longitudinal direction, the edge formed at the step between the thin part 4a and the thick part 4b must be Part 4
This may be done by bringing d into contact.

-4) The protrusion 9C of the jig 9 is not necessarily necessary; for example, the jig 9 can be placed in a predetermined position with respect to a jig for vertically positioning the molding 4, so that the jig 9 itself can be positioned. You can also do this. That is,
The jig 9 can be attached to an appropriate member on the vehicle body A side, such as the above-mentioned vertical positioning jig, without being directly fixed to the vehicle body A itself.

-5. The jig 9 can be made of non-magnetic rubber instead of magnetic rubber, and does not need to be made of an elastic material such as rubber.

-6> In addition to the door molding 4, the present invention can be similarly applied to moldings at appropriate locations such as fender moldings as long as the molding has a thin walled portion at one end.

(Effects of the Invention) As is clear from the above description, the present invention provides a method in which a suppressing piece portion shaped to fill the stepped portion between the thin wall portion and the thick wall portion of the molding is positioned on the thin wall portion, Since the pressing member performs the crimping work through the suppressing piece, the suppressing member moves smoothly between the thin-walled portion and the thick-walled portion without jumping, and the thin-walled portion is crimped at a predetermined pressure. This is done reliably and the adhesive strength is improved.

Furthermore, since the longitudinal positioning of the molding is performed using the jig having the above-mentioned suppressing piece, the molding can be more accurately installed in a predetermined position compared to the case where the positioning is performed by one worker's visual estimation. .

[Brief explanation of the drawing]

FIG. 1 is a side view showing an example of a vehicle body to which a molding is attached. FIG. 2 is a sectional view showing one embodiment of a jig used in the present invention. FIG. 3 is a perspective view of the jig shown in FIG. 2. FIG. 4, FIG. 5, and FIG. 8 are sectional views showing each step of the present invention. FIG. 6 is a perspective view of the process shown in FIG. 5. FIG. 7 is a sectional view taken along the line ■-■ in FIG. 5. l...Vehicle body 3e...Door 4 fist @e, Φ, door molding 4a...Thin wall part 4b - fist...Thick wall part 4c, 4d...End face 9... ... Jig 9d Fist ... Pressing piece 11 ... Contact agent Fig. 1 Fig. 5 Fig. 6 Fig. 7 Fig. 8

Claims (1)

[Claims] (1) A method for adhering a molding having a thin wall at one end to a vehicle body, the method comprising a suppressing piece shaped to fill a space between a step between a thin wall and a thick wall of the molding. a step of fixing a jig to the vehicle body side, and inserting the molding between the outer surface of the vehicle body and the suppressing piece portion, and bringing the end surface of the molding on the thin-walled GLL side into contact with the jig. a step of positioning the molding in the longitudinal direction of the molding; and displacing the molding suppressing member relative to the vehicle body in the longitudinal direction of the molding, so that the molding suppressing member can prevent the thick part of the molding and the pressing A method for adhesion of a molding having a thin wall portion, comprising the steps of: crimping each of the thin wall portions to the vehicle body via a piece.