JPH01285467A - Center pillar structure for vehicle - Google Patents

Abstract

PURPOSE:To make improvements in transverse strength of a center pillar by connecting an interval between a front end of an outer panel of the center pillar and an inner panel with a reinforced member, and partitioning a section of the center pillar in the transverse direction. CONSTITUTION:A reinforced member 14 is set up in an interval between an outer panel 12 and an inner panel 13, and respective front flanges 12a, 13a and rear flange parts 12b, 13b themselves are fixed with one another by means of welding. Together with these flanges, one side electrode 18a of a welding gun 18 is made to get into the backside of the inner panel 13 from an opening 17 formed in the inner panel 13, and a section L-shaped part 19 attached to another end 14b of the reinforced member 14 and a rear part of a peripheral edge 13d of the opening 17 of the inner panel 13 are held between the said electrode 18a and an electrode 18b on the other and they are fixed with each other by means of welding. Afterward, trim 20 is attached to a peripheral edge 13 of the inner panel 13 formed in step, thus the opening 17 is closed.

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to a center pillar structure for a vehicle, and more particularly to a center pillar structure for a vehicle in which a reinforcing member is provided between an outer panel and an inner panel.

b. Prior Art FIG. 24 shows a conventional center pillar structure 1 for a vehicle.

In this conventional center pillar structure, the center pillar l has a reinforcing member 4 disposed between an outer panel 2 and an inner panel 3. In particular, the front end 4a of the reinforcing member 4 is connected to the outer panel. 2 and the front flange 3a of the inner panel 3 and are welded and fixed to each other, and the rear end 4b of the reinforcing member 4 is connected to the rear flange 2b of the outer panel 2.
and the rear flange portion 3b of the inner panel 3 and are welded and fixed therebetween.

C0 Problems to be Solved by the Invention By the way, in the conventional vehicle center pillar structure as described above, the reinforcing member 4 includes the front flange members 2a and 3 of the outer panel 2 and the inner panel 3, respectively.
Since the center pillar 1 is arranged to extend from the center pillar 1 to the rear flange portions 2b and 3b, the desired strength cannot be obtained, especially when the cross-sectional area of the center pillar 1 is large.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a center pillar structure for a vehicle that can easily obtain desired strength.

d. Means for Solving the Problems In order to achieve the above object, the present invention provides a center pillar structure for a vehicle in which a reinforcing member is provided between an outer panel and an inner panel, and an opening is provided in the inner panel; The front end of the reinforcing member is welded to the outer panel, one electrode of a welding gun is positioned on the back side of the inner panel through the opening of the inner panel, and both electrodes of the welding gun are used to weld the reinforcing member to the outer panel. and the inner panel are sandwiched and welded together.

e. Example Hereinafter, an example of a center pillar structure for a vehicle according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 23 show an embodiment of the present invention.

The center pillar structure of the vehicle of this embodiment is related to the left and right center pillars 11 of the vehicle IO as shown in FIG. The front flange portions 12a, 13a and the rear flange portions 12b, 13b are welded to each other to form a closed cross-sectional shape.

That is, the center pillar 11 is constructed by welding the L-shaped bent front end 14a of the reinforcing member 14 to the step 12c immediately after the front flange 12a of the outer panel 12, and then welding the front end 14a of the reinforcing member 14 to the step 12c immediately after the front flange 12a, as shown in detail in FIG. The front flange portion 12a of the outer panel 12 and the inner panel 13 is
, 13a are sandwiched and welded and fixed to each other by a welding gun 15, and their rear flange portions 12b, 1
3b are sandwiched between the welding guns 16 and welded and fixed to each other, and together with these, one electrode 18a of the welding gun 18 is inserted into the back side of the inner panel 13 through the opening 17 formed in the inner panel 13, and this electrode and the other electrode are inserted into the back side of the inner panel 13. A cross-sectional member 19 attached to the other end 14b of the reinforcing member 14 by the electrode 18b (or directly attached to the other end 14b
) and the peripheral edge 13c of the opening 17 of the inner panel 13
They are constructed by welding and fixing them to each other with the rear part sandwiched in between.

After this, the peripheral edge part I of the inner panel 13 formed in steps is
The trim 20 is attached to 3 and the opening 17 is closed.

Here, as shown in detail in FIGS. 6 to 13, the reinforcing member 14 has a groove 14c having a substantially U-shaped cross section in its center.
The rear portion has a bent portion 14d bent at a substantially right angle.
The strength is increased by these grooves 14c and bent portions 14d.

Note that, as shown in FIG. 7, the groove 14c has a plurality of branch grooves 14a extending from the upper end to the center and slightly rearward.

Further, the reinforcing member 14 has two openings 14f at the bottom.

In addition, FIG. 5 shows that by providing two openings 17, 17, etc. in each of the inner panel 13, reinforcing member 14, and other parts, welding guns 21 are provided in a pair in the area between the holes. Inner panel 13 from both sides by
An example is shown in which welding is performed by sandwiching the above-mentioned and other parts, thereby making it possible to improve the efficiency of the welding work.

f. As described in detail, according to the vehicle center pillar structure according to the present invention, the reinforcing member is disposed to connect the front end of the outer panel and the inner panel, so that the cross section of the center pillar is Since the structure is divided in the direction (perpendicular to the direction of vehicle travel), it is possible to maintain the strength necessary to support the door in the center pillar while also improving the strength in the lateral direction.

In addition, an opening is formed in the inner panel, and the inner panel and reinforcing member are sandwiched and welded using a welding gun passed through this opening, so welding work can be performed efficiently. The weight of the center pillar can be reduced.

[Brief explanation of the drawing]

1 to 23 show one embodiment of the center pillar structure of a vehicle according to the present invention, FIG. 1 is a diagram showing the vehicle, FIG. 2 is a perspective view showing the center pillar, and FIG. 3 is a perspective view showing the center pillar. The figures are A-AwA sectional views in Figure 2, Figures 4 and 5.
The figure shows the state of welding work, and Figures 6 to 13 show examples of reinforcing members. Figure 6 is a left side view, Figure 7 is a front view, and Figure 8 is a reinforcement member. 9 is a sectional view taken along the line C-C in FIG. 6, FIG. 10 is a sectional view taken along the D-D line in FIG. 7, and FIG. 11 is a sectional view taken along the line E-B in FIG. 7. Line sectional view, Figure 12 is F-F in Figure 7
A line sectional view, FIG. 13 is a GC line sectional view in FIG. 7,
Figures 14 to 23 show the inner panel, Figure 14 is its left side view, Figure 15 is its front view, Figure 16 is its top view, Figure 17 is its bottom view, and Figure 18 is its 19 is a sectional view taken along line I-1 in FIG. 15, and FIG. 20 is a sectional view taken along line J-J& in FIG. 15.
j! 21 is a sectional view taken along line -K in FIG. 15; FIG. 22 is a sectional view taken along line L-L in FIG.
FIG. 3 is a sectional view taken along line M-B in FIG. 15. DESCRIPTION OF SYMBOLS 10... Vehicle, 11... Center pillar, 12... Outer panel, 12a... Front flange part, 12b... Rear flange part, 12c... Step part, 13... Inner panel, 13a...Front flange part, 13b...Back flange part, 14...Reinforcement member, 14a...Front end part, 1
5, 16.18.20... Welding gun, 17... Opening, 19... L-shaped member, 20... Trim. Patent applicant Suzuki Motor Co., Ltd. (and 2 others) Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 HD Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Procedural amendment (September 6, 1988, Director General of the Japan Patent Office Yoshi 1) Moon Takeshi 1. -1
, Indication of the case Patent Application No. 116074 of 1988 2 Title of the invention Vehicle center pillar structure 1 Person making the amendment Relationship to the case Patent applicant name (20B) Suzuki Motor Co., Ltd. 4, Agent Address 107 3-2-3 Akasaka, Minato-ku, Tokyo (2 Idiots) 5. Date of amendment order: August 3, 1985 (Shipping port: August 30, 1988) Contents of amendment 1) Specification No. 7 of the present application The sectional view taken along the line rM-M of No. 41 (directly below the blade) is corrected to the sectional view taken along the line rM-M, and the 24th figure is a sectional view showing the center pillar structure of a conventional vehicle.

Claims (1)

[Claims] In a vehicle center pillar structure in which a reinforcing member is provided between an outer panel and an inner panel, an opening is provided in the inner panel, the front end of the reinforcing member is welded to the outer panel, and the front end of the reinforcing member is welded to the outer panel. A center pillar for a vehicle, characterized in that one electrode of a welding gun is positioned on the back side of the inner panel through an opening, and both electrodes of the welding gun sandwich and weld the reinforcing member and the inner panel together. structure.