JPS62131885A - Fixation of locker inner with front floor panel of vehicle - Google Patents

Abstract

PURPOSE:To efficiently carry out the tentative fitting of a locker inner and the installation of a bracket for small piece by outwardly forming a turned-up tongue part at the bent part of a front floor panel and tentatively fitting the lower edge surface of the locker inner onto the turned-up tongue part. CONSTITUTION:A turned-up tongue part 28 directed outwardly is formed at the bent part 12 of a front floor panel 10. The lower edge surface of a locker inner 14 is tentatively welded onto the turned-up tongue part 28 by a stud gun 26a, and then the side surface of the bent part 12 of the front floor panel 10 and the locker inner 14 are fixed. Therefore, when tentative fitting is carried out, a stud gun 26 for the installation of a bracket 24 for small piece can be used in common, and also the tentative fitting of the locker inner 14 and the installation of the bracket 24 can be carried out efficiently at the same time in a same process.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of fixing a locker inner to a front floor panel of a vehicle, particularly an automobile body.

[Conventional technology]

Conventionally, the front floor panel of an automobile body (hereinafter simply referred to as a vehicle body) is fixed to a locker inner as shown in FIG.

That is, the front floor panel 10 is formed with a bent part 12 whose side end is bent upward, and the locker inner 14 is brought into contact with the outer side surface of this bent part 12.
They were fixed together by spot welding them together at a number of welds 16.

However, since the front floor panel 10 and the locker inner are fixed together by spot welding at a large number of welds 16, it takes a lot of time to weld all of these welds 16 in one process. For this reason, the front floor panel 10 and the locker inner 1
4 and 4 in one process, other processes cannot proceed, resulting in a decrease in production efficiency. Therefore, in order to fix the front floor panel 10 and the locker inner 14, first, the welding part Temporary attachment part 16 in multiple places of 16
As shown in step (a), temporary attachment was performed by welding, and after the various parts were sent to the next process and attached to the front floor panel 10 and the locker inner 14, the remaining welded parts 16 were welded to ensure complete fixation. The welding between the welding part 16 and the temporary attachment part 16a is performed by a pair of pincher guns 18, 20 which sandwich the bent part 12 and the locker inner 14, as shown in FIG.

[Problem that the invention seeks to solve]

By the way, since the temporary welding of the part 16a requires only a small number of welding points, it is recommended to perform the temporary welding in the same process as the installation of the bracket 24 for small items that supports the exhaust pipe, insulator cover, etc., which is fixed to the lower surface of the front floor panel 10. This is desirable from the standpoint of efficiency. However, the attachment of the bracket 24 to the front floor panel 10 is difficult.
The lower part is supported by a supporter, and as shown in FIG. 6, it is welded and fixed from above using a stud gun 26.

Therefore, if it is attempted to temporarily attach the locker inner 14 and attach the bracket 24 to the front floor panel 1o in the same process, two types of welding devices are required. Moreover, the mounting position of the bracket 24 is relatively close to the locker inner 14, and if the temporary mounting of the locker inner 14 and the mounting of the bracket 24 are attempted to be carried out in the same process, it will be difficult to open and close the pincher gun 18. Since the pincher gun 20 and the stud gun 26 come into contact with each other, it is difficult to temporarily attach the locker inner 14 and the bracket 2.
4 could not be installed in the same process. Therefore, conventionally, the temporary attachment of the locker inner 14 and the attachment of the bracket 24 have been performed in separate steps, resulting in an increase in the number of steps. Furthermore, in the past, a special welding device was required for temporarily attaching the locker inner 14, which increased the cost of production equipment.

The present invention has been made in order to eliminate the above-mentioned conventional drawbacks, and is a front floor panel that allows temporarily attaching the locker inner 14 to the front floor panel and attaching brackets for small items to the front floor panel in the same process. The purpose of the present invention is to provide a method of fixing to a locker inner.

[Means for solving problems]

The present invention provides a method for fixing a front floor panel and a locker inner, in which an end of the front floor panel is bent upward and a locker inner is fixed to the side surface of the folded part. is formed into an outwardly folded tongue portion that contacts the lower end surface of the locker inner, and after temporarily attaching the folded tongue portion and the lower end surface of the rocker inner, the This method of fixing a front floor panel and a locker inner is characterized by fixing a side surface of a bent part of the front floor panel to the locker inner.

[Effect]

That is, in the present invention, by forming a folded tongue part on the outside of the bent part on the front floor panel, the lower end surface of the locker inner is temporarily attached to the folded tongue part using a stud gun. This makes it possible to attach brackets for small items and temporarily attach locker inners in the same process.
Furthermore, the tack attachment makes it possible to omit a dedicated welding device.

〔Example〕

A preferred embodiment of the method of fixing a front floor panel and a locker inner according to the present invention will be described in detail with reference to the accompanying drawings. Note that the same reference numerals are given to the parts corresponding to the parts explained in the prior art, and the explanation thereof will be omitted.

FIG. 4 shows fixing by a fixing method according to an embodiment of the present invention. FIG. 3 is a perspective view showing a state in which the front floor panel and the locker inner are fixed. A folded-back tongue portion 28 as shown in FIG. 2 is formed in the tacking portions indicated by symbols A and B in FIG. 4. As shown in FIG. The folded tongue portion 28 is formed by folding a portion of the folded portion 12 of the front floor panel 10 outward. The folded tongue portion 28 can be formed simultaneously with the bent portion 12 and the like when pressing the front floor panel 1o into a predetermined shape. The cut that separates the folded portion 12 and the folded tongue portion 28 may be formed during press working, or may be formed when cutting the material plate as a plate for the front floor panel 10. . In addition, the folded tongue portion 28
may be formed in a process different from the above press working process.

As shown in FIG. The lower end of the tack is welded.

The welding process for temporarily attaching the locker inner 14 to the front floor panel 10 is performed as shown in FIG. A stud gun 26a can be used as shown in FIG. Therefore, it is not necessary to provide a welding device with a dedicated pincher gun for temporary attachment as in the past, and the cost of production equipment can be reduced. Furthermore, since the temporary attachment is performed using the stud gun 26a, not only can it be used in common with the stud gun 26 for attaching the accessory bracket 24, but also the temporary attachment of the locker inner 14 and the attachment of the bracket 24 can be performed in the same process. It becomes possible to perform these operations at the same time, and it is possible to improve productivity. Since the stud gun 26a can enter from the outside of the vehicle interior 3o, the stud gun 26a can enter the vehicle compartment 3o from the outside.

There is no need to make the front floor panel 10 of the B part convex toward the vehicle interior 3o side, and the size of the vehicle interior space can be secured as in the conventional case.

After temporarily attaching the locker inner 14 and attaching the bracket 24 to the front floor panel 10 in the same process, the front floor panel 10 is moved to the next process in the same manner as in the prior art, and for example, a front floor cross member and the like are attached. Then, in the final process, as shown in Figure 3,
The bent portion 12 of the front floor panel 10 and the locker inner 14 are spot-welded at the welding portion 16 using a pincher gun, and are completely fixed.

In the above embodiment, the folded tongue portions 28 are formed at both ends of the front floor panel 10 in the front and rear direction, but their positions and numbers are not limited to those in the above embodiment.

〔Effect of the invention〕

As explained above, according to the present invention, the front floor panel is formed with a folded tongue portion facing outward from the bent portion, and the lower end surface of the locker inner is temporarily attached to the folded tongue portion. By doing so, the temporary attachment of the locker inner to the front floor panel and the attachment of the accessory bracket can be performed in the same process.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a method for temporarily attaching a front floor panel and a locker inner according to an embodiment of the method for fixing a front floor panel and a locker inner according to the present invention,
A diagram showing the same part as the cross section along the I-I line in Figure 4, 2nd
The figure is an explanatory diagram of the shape of the front floor panel for carrying out the above fixing method according to the embodiment of the present invention, and FIG. FIG. 4 is a cross-sectional view taken along the line ■-■ in FIG. 4, and FIG. 4 is a diagram illustrating the welding method between the front floor panel and the locker inner, which are fixed by the above-mentioned fixing method according to the embodiment of the present invention. Fig. 5 is a perspective view showing the fixed state of the conventional front floor panel and locker inner, and Fig. 6 is an explanatory diagram of the temporary attachment work of the conventional front floor panel and locker inner. . 10...Front floor panel. 12... Bent part, 14... Rocker inner, 16... Welded part, 16a... Temporary attachment part, 18.20... Pincher gun, 26.26a... Stud gun, 28... Folded tongue.

Claims (1)

[Claims] In a method of fixing a front floor panel and a locker inner in which an end of the front floor panel is bent upward and a locker inner is fixed to the side surface of the bent part, a part of the bent part of the front floor panel is , formed into an outwardly turned folded tongue that abuts the lower end surface of the locker inner, and after temporarily attaching the folded tongue and the lower end surface of the locker inner, the front floor panel is attached. A method for fixing a front floor panel and a locker inner, the method comprising fixing a side surface of a bent part to the locker inner.