JPS61215175A - Structure of front pillar - Google Patents

Abstract

PURPOSE:To reduce the production cost by forming a front pillar with a lip channel steel on the market and a panel member joined with the outsides of its both end walls and forming an enclosed cross section structure together with its bottom wall. CONSTITUTION:A front pillar 1 is constituted with a lip channel steel 2 arranged so that its groove section 3 faces the inside of the door opening and a panel member 6 welded on the outside of side walls 5 of a lip channel steel 2 at its side edges 7. A window shield glass is fixed on the outer wall 8 facing the front in the lengthy direction of the panel member 6. A weather strip 17 is coupled with the channel steel 2, and the opening section between the channel steel 2 and the door glass is sealed by this weather strip. A lace 23 to conceal the roof panel welding seam and glass fitting section is fitted to the outside of the front pillar 1.

Description

[Detailed description of the invention] [Industrial application field]

The present invention provides a front door for automobiles equipped with doors without pushbuttons.
Regarding the structure of the pillar, in detail, we have designed a front pillar with a reduced manufacturing stroke to securely hold the front pillar and improve the sealing function of this weather strip against the door glass. Concerning what has been done.

[Prior art and its problems]

In a car using a door without a door as described above,
Direct contact with the door glass prevents wind, rain, water, dust, and sound from entering the vehicle interior, and also reduces the impact when opening and closing the door and when the door glass goes up and down. A weather strip is attached to the front pillar to prevent the glass from vibrating. An example of such a structure of a front pillar of an automobile is shown in Japanese Utility Model Application Publication No. 55-42617. FIG. 5 shows a cross section of the structure of the Freon 1 to the pillar. This front pillar a is composed of an outer panel b having a substantially U-shaped cross section and an inner panel C having a substantially U-shaped cross section enclosed therein, and has a closed cross-sectional structure by overlapping and welding the edges of each. is forming. The bottom portion of the weather strip d is attached to the bottom surface of the inner panel C facing the door opening by adhesive. However, such a conventional structure has the following problems. First of all, both the outer panel b and the inner panel C must be made by cutting flat plates using special molds and then press forming them. Therefore, the manufacturing process has become complicated, which has been a factor in increasing manufacturing costs. Second, only the bottom surface of the weather strip d is attached to the bottom surface of the inner panel by adhesive or the like, and both sides are not held in any way, so that the attachment is less reliable. For example, when a door is closed, the impact from the door glass is directly transmitted to the weather strip d, but at this time, since both sides of the weather strip d are not held, only a portion of the impact force is transmitted. acts as a force that tends to peel off the bottom of the weather strip d from the inner panel C. Therefore, the weather strip d could easily come off. Thirdly, when attaching the weatherstrip d to the inner panel C of the pillar, the width of the bottom of the inner panel C is wider than the width of the bottom of the weatherstrip knob d. Errors occurred when installing in the width direction at various locations. If there is such an error, there will be parts where the weather strip d and the glass 1' are in close contact with each other, and as a result, the sealing performance of the weather strip as a whole will deteriorate. One possible solution to this problem would be to provide a holding member on the bottom surface of the inner panel C that holds the base of the weather strip d, but this would complicate the assembly work of the front pillar. This also causes an increase in the number of parts, resulting in an increase in manufacturing costs, and is therefore not a preferable method. The present invention was devised under the above-mentioned circumstances, and is capable of solving the above-mentioned conventional problems and significantly reducing manufacturing costs, as well as being able to securely hold a weather strip. As a result, it is an object of the present invention to provide a new front pillar structure that is improved so as to improve the sealing performance of the weather strip against the door glass.

[Technical means for solving the problem] In order to solve the above-mentioned problems, the present invention provides a light groove section steel or a lip groove section steel (hereinafter referred to as , these are referred to as groove shaped steel), and a panel member whose both side edges are joined to the outside of both side walls of the groove shaped steel, and which cooperates with the bottom wall of the groove shaped steel mentioned above to form a closed cross-sectional structure. This forms a front pillar, and the weather strip is held directly on the inner surface of the groove of the grooved steel of the front pillar.

[Actions and effects of the present invention]

In the present invention, a front pillar is formed by a commercially available groove steel and a panel member that is joined to the outside of both side walls and cooperates with the bottom wall of the groove steel to form a closed cross-sectional structure. . Therefore, it is no longer necessary to press-form the inner panel of the front pillar from a flat plate using a special process as in the past, and manufacturing costs are significantly reduced. Furthermore, the present invention includes a weather strip that is held directly on the inner surface of the groove of the grooved steel. Therefore, since even both sides of the weatherstrip are held in place compared to the prior art, there is no possibility that the weatherstrip will come off the groove steel due to an impact applied to the weatherstrip. Furthermore, since the weatherstrip is held with its base filled in the groove of the grooved steel, there is no difference in the width direction when installing the weatherstrip, unlike in the prior art. As a result, the sealing performance between the door glass and the weatherstrip is uniform throughout the length of the weatherstrip. In addition, weather protection is applied to the groove steel that makes up the front pillar.
Since the strip is directly held, there is no need for an increase in the number of parts.

[Explanation of Examples]

Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an automobile to which a front pillar structure according to the present invention is applied, and FIG. 2 is a sectional view of the front pillar 1. The front pillar 1 of the car includes a lip groove steel 2 arranged so that the groove 3 faces the inner surface of the door opening, and a side wall 5.5 of the lip groove steel 2 with a side edge 7.7.
It is constituted by a panel member 6 which is joined by welding to the outside thereof and which cooperates with the bottom wall 4 of the lip groove section 2 to form a closed cross-sectional structure. Further, a windshield glass 9 is fixed to an outer wall 8 of the panel member 6 facing forward in the vehicle length direction. As this fixing means, for example, after temporarily attaching the inner peripheral edge of the windshield glass 9 to the outer wall 8 using double-sided tape 10 having cushioning properties, the edge of the windshield glass 9 is cut into a cross section. A means of pressing and fixing with a molding 11 is adopted. The molding 11 has a base end 11a fixed to the outer wall 8 by a tapping screw 13. Furthermore, welding marks between the tapping screw 13 and the lip groove shaped steel 2 appearing on the outer surface of the outer wall 8 or the side edge 7 of the panel member 6 are
It is covered and hidden by a molding 14 attached to the outer wall 8 or the side edge 7 of the outer wall 1 with an adhesive 15 or the like. A protector 16 for sealing a gap with respect to the molding 11 is fitted into the inner edge of the molding 14. It is also possible to form a drip on the door glass side of the molding 14, as shown by the imaginary line in FIG. 2, so that rainwater or the like can flow therethrough. Further, the edge of the inner side edge 7 of the panel member 6 extends slightly further downward than the lower end of the side wall 5 of the lip groove shaped steel 2, and the trim T is fitted therein. The base 18 of the weather strip 17 is held in close contact with the bottom 4 of the groove 3 of the lip groove section 2 and the inner surface of the side wall 5.5. The easily deformable head 19 of this weather strip 17 is arranged so that it can be sandwiched between the outer edge of the panel member to which the rim T is attached and the inner surface of the door glass, and when the door glass is raised and lowered. It reduces the impact and impact when opening and closing the door, and ensures a good seal inside the vehicle interior. In this way, in the present invention, the weather I to the base 18 of the lip 17 are filled in the groove of the lip groove section 2 and are securely held.Secondly, the force received from the door glass is The extended edge of the panel member 6 where f=l is removed securely holds the support 11.
2, the impact applied to the weather strip 17 by the lζagurasu causes the weather strip 17 to
This prevents the pillar from accidentally coming off the pillar. Furthermore, since the weather strip 17 is installed along the inner surface of the groove of the lip groove steel 2, there is no error in installing the weather strip 17 in the width direction.
The sealing performance between the door glass and the weather strip 17 can be ensured. In this example, as shown in FIG. 3, the structure shown in FIG. 2 is continued to the roof side as it is, thereby forming the roof site rail 20. As shown in Fig. 4, the part corresponding to the roof front edge of the structural member consisting of the lip groove section 2 and the panel member 6, which extends continuously from a part of the front pillar to the roof site rail part, has a rudder to the windshield. Inner panel 22
Both side edges of the roof panel 21 are welded and attached in a cross-shaped manner, and then the edge of the roof panel 21 is welded and attached to the outer surface of the outer side edge 7 of the panel member 6. In order to hide welding marks on the roof panel 21, a molding 23 continuous with the molding 14 on the front pillar 1 is attached with an adhesive 15. Similar to the molding 14 in the pillar part, a drip shown by a phantom line can be formed in this molding 23. In addition, the protector 24
It is attached to seal the gap between the roof panel 21 and the roof panel 21. Furthermore, a trim T that is continuous with the trim T on a portion of the front pillar is attached to the extended edge of the inner side wall end of the panel member 6. Furthermore, a weather strip 17 similar to that on the front pillar 1 is attached to the groove of the lip groove section 2. In this way, by integrating the roof sight rail 20 and the front pillar, it is possible to reduce the number of parts in the vehicle body, and it is also possible to significantly improve the workability of assembling the vehicle body, reducing manufacturing costs. can be achieved. Furthermore, the front pillar 1 and the roof sight rail 20 have no seam as in the past, so it is possible to create a structure with excellent strength, and the vehicle body structure can be strengthened. Note that the scope of the present invention is of course not limited to the above-mentioned embodiments. In the embodiment, the edge of the side wall portion was bent inward and grooved steel was used, but it goes without saying that the same effects of the present invention can be achieved even if light grooved steel is used. .

[Brief explanation of drawings]

Fig. 1 is a perspective view of an automobile to which the front pillar structure of the present invention is applied, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a cross-sectional view taken along the line m-m in Fig. 1. 4 is an exploded perspective view of a vehicle body having a front pillar structure according to the present invention, and FIG. 5 is a sectional view showing a conventional front pillar structure.

Claims (1)

[Claims] (1) Light groove steel or lip groove steel (hereinafter referred to as groove steel) arranged so that the groove faces the inner surface of the door opening, and both side edges joined to the outside of both side walls of the groove steel. and a panel member that cooperates with the bottom wall of the groove steel to form a closed cross-sectional structure, forming a front pillar, and a weather strip is directly applied to the inner surface of the groove of the groove steel of the front pillar. The structure of the front pillar is characterized by its retention.