JPS5873420A - Mounting construction of rear lower sash of door for automobile - Google Patents

Abstract

PURPOSE:To improve mounting accuracy of a rear lower sash, by protruding a lower sash mounting sheet part to the inside of a door in an inner panel rear end face of the door, molding the lower sash mounting sheet part through embossing and fixedly welding a rear lower sash to said part. CONSTITUTION:A door main unit 1, integrally provided with a door sash 2, is constituted by an inner panel 5 and outer panel 6, and a lower sash mounting sheet part 15, protruded to the inside of a door, is molded by embossing to a required location in a rear end face of said door inner panel 5. A lower end part of a rear lower sash 16 is fixed by welding and the like to this mounting sheet part 15, and an upper end part of said sash 16 is extensibly provided to the upper from a door waist part W, then this extensibly provided part 16a is interposed between end parts of inner and outer sashes 7, 8 of a sash rear side part 2c, thus fixed by spot welding. Further a sheet surface 15a of said mounting sheet 15 is formed in alignment to a slope of the sash rear side part 2c.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile door, and more particularly to a rear lower sash mounting structure for a so-called press door in which the door sash is integrally formed with the door body.

In the field of automobile doors, so-called press doors have been known in recent years, as shown in FIG. 1, in which a door body and a door sash are integrally molded.

This breath door is a door outer panel with an integrally molded sash part, a door inner panel, and a T-sealed joint.
Roof panel 3
9111, and the front side part is extended around the front side of the front pillar, and the door sash and roof panel 3. It provides a sense of unity with the front pillar, which is said to be advantageous in terms of appearance and aerodynamic properties.

As shown in the second diagram, the front ML door sash has a so-called open section in which the end of the inner sash 7 and the end of the outer sash t are spaced apart, and has high bending rigidity.

Torsional rigidity is low. To solve this problem, it would be possible to improve the rigidity by adding reinforcing materials to the parts with low rigidity as mentioned above, but this would greatly increase the weight and is not desirable from the perspective of improving fuel efficiency. It becomes a thing. Therefore, the front side of the satsushion -a, where the bending load and torsion load are most likely to be applied due to the negative running pressure being sucked out to the outside of the vehicle.
The channel material is provided only in the area L extending from part of the front corner of the upper part b of the sash to provide reinforcement without a significant increase in overlap.

By the way, even with this press door, there is @+1 inside the door body/inside the lift guide for the door glass G.
Conventionally, the front and rear lower flaps have been fixed to the door inner panel via a bracket.

Figures 8 and 4 show the conventional mounting structure of the rear lower sash.The rear lower sash IQ has brackets on the top and bottom of the front lower sash (not shown).
While the spot welding was done in advance, a bolt insertion hole elongated in the front and back direction was formed in the bracket fixing part on the side of the door inner panel 5, and this door inner panel! 1lJWJKtlwa Sash 10 is the rear side of the sash J
Adjust the position within the length range of the bolt insertion hole l so that the bracket is located on the extension of c, //, // f,
It is fixed with 13 bolts and nuts.

However, in such a conventional structure, the bolt/nut/3 fixing position of the rear lower satsume 1Ot-1 is set by vI4gl at the long hole/J of the door inner panel 5 as described above, but the front lower seat (not shown) As the lower satchels are adjusted in the same way as the rear lower satchels and fixed with bolts and nuts, the installation accuracy is not perfect, and even if these lower satchels are fixed, the ridges of the door glass G1 &: are assembled, and the door glass After watching the lifting and lowering movements of G, I re-positioned the rear lower seat io and the front lower seat (not shown).
t, which requires a large number of man-hours.

Moreover, even if the positioning is adjusted to the rear lower sash 101 in this way, the 1M lower sash 101 must be slid and then tightened with bolts/nuts/3.

The mounting accuracy is not very high, but
Due to the fact that the rear lower seat 10 is discontinuous with the rear seat S-〇, there is a problem that the door glass G tends to shake when moving up and down. 1g4 4 in the figure indicates the door outer panel.

In view of the conventional situation, the present invention can improve mounting accuracy and eliminate the need for positioning adjustment.

Equipped with a rear lower sash that has high mounting rigidity and does not cause rattling when the door glass goes up and down *m'tm
The purpose is to provide

Therefore, the present invention focuses on the fact that the press door is made by integrally press-molding the door sash and the door body, and a lower sash mounting seat part that protrudes toward the inside of the door is emboss-molded at a required location on the rear end surface of the door inner panel. Then, the rear lower satchel is welded and fixed to this seat part, and the upper end S of the rear lower satchel is extended above the door waist part, and this extended part is connected to the inner and outer satush ends of the rear side of the satchel. By welding and fixing the rear lower sash across the sash, the mounting accuracy of the rear lower sash is directly reflected in the emboss molding accuracy of the mounting seat and the molding accuracy of the door sash. This is to prevent rattling when the door glass moves up and down.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings, with the same reference numerals assigned to the same parts as in the conventional structure.

In FIGS. 5 to 8, a lower sash mounting seat part which projects toward the inside of the door is formed with an emboss at a required portion of the rear end surface of the door inner panel 5.

This seat part /3 is molded at the same time as the press molding of the door inner panel j, and the seat surface /3a is
In addition, the protrusion is set arbitrarily in consideration of the height of the rear lower sash/4' which will be described later.

Then, the lower side part of the rear lower sash 16 is fixed to the lower sash mounting seat lj by spot welding, for example, and the upper end of the ridge lower sash 16 is extended above the metal door waist part W. Setup/4
a'ft: Fixed by spot welding, for example, across the inner sash 7 end and the outer sash 1 end of the sash rear side JO.

The upper end extension part/Aa of this rear lower sash 14 is formed by changing the shape from the generally O-shaped cross section of the lower sash general part to a U-shaped cross section, and is properly attached to the inner sash 7 end and the outer sash 1 end. This allows close welding identification.

Moreover, in this way, the upper end extension part of the lower ridge part 14/
By changing the shape of Aa and the general part of the sash, it is possible to install a glass run/7 with a long retaining lip a to be fitted to the inner periphery of the door sash above the door waist part W, and to hold the spot weld part as described above. It can be hidden by the lip /7a, and a general-purpose small glass run /I without a retaining lip can be used below the door waist portion W, thereby reducing the total glass run xi used.

According to the structure of the embodiment described above, the lower sash mounting seat part /3 can be formed with high accuracy together with the inner sash 7 at the same time as the door inner panel j is press-formed.

Therefore, the lower part of the rear lower satush 14 is connected to the seat part/
By spot welding to J, and also spot welding across the inner sash 7 end and the outer sash 1 end of the upper end extension part/4 at sash rear side C, the mounting accuracy of the ridge lower sash 16 can be maintained as is. Seat part/
3 and the molding accuracy of the door satsushiko, and high installation accuracy without any deviations can be obtained. As a result, v! after installing the door glass G! 4. Using this rear lower seat 14 as a reference, it is only necessary to adjust the position of the front lower seat (not shown), which is attached via a bracket in the same way as before, in the front and back direction, so that the vertical movement of the door glass G is properly maintained without any wobbling. It is possible to make J4 down guide money.

The rear lower satchel 16 is positioned above the door waist part W, and this extension part/Aa is connected between the inner satchel 7 end and the outer satushium end of the rear satush part Jc...
Because it is fitted into the open cross section of the sash and is in spot contact with the rear side of the sash, it is continuous with the rear side of the sash. In addition to increasing the f1 degree, there is no wobbling in the raising and lowering operation of the door glass G, and reliability and quality can be improved.

For the above-mentioned reason, reinforcing channel material 9 is not provided in the upper part of the satshu B and the rear part Jc of the satsui. It is relatively easy to concentrate torsional load 1 bending load, but since the connecting base of the rear sash C is reinforced by the rear lower sash extension part /A a,
The torsional rigidity 9 bending rigidity of the part can be increased.

Furthermore, since the rear lower sash 16 is likely to be fixed to the seat part /3 and the rear side part of the sash by spot welding, the mounting rigidity of the rear lower sash /6 can be increased, and the door inner / tunnel jvk end face Also, there is an advantage that the panel rigidity of the rear side part Jo of the satshu can be increased.

As described above, according to the present invention, the mounting accuracy of the rear lower satchel is obtained as the press molding accuracy of the lower satchel mounting seat part and the door sash, so the accuracy is high. Therefore, when assembling the door glass, the front Since it is only necessary to adjust the position of the P wasash in the longitudinal direction, the adjustment work is very easy, and moreover, the door glass can be guided up and down as designed. In addition, since the upper end extension of the rear lower satsume is fitted into the open cross section of the rear side of the satsch and fixed by welding, the rear side of the satsch and the rear lower satush are continuous and there is no wobbling when the door glass goes up and down. It is possible to guide the sash up and down smoothly, and the presence of this extending portion can increase the rigidity of the molded base on the rear side of the sash. The rear lower sash is fixed by welding to the seat portion and the rear side of the sash, so it has high rigidity when rounded, and at the same time, it has a great practical effect in that it can also reinforce the end face of the door inner panel.

[Brief explanation of the drawing]

Figure 1 is a perspective view of an automobile door, and Figure M2 is the same as in Figure 1.
3 is a partially cutaway side view showing the conventional structure, FIG. 4 is a sectional view taken along line IV-IV in FIG. 8, and FIG. 5 is a part showing the structure of the present invention. The broken side view, Figures 6 and 7 are cross-sectional views taken along the ■-W line and ■-■ line in Figure 6, respectively.
FIG. 8 is a perspective view of the upper side of the rear lower satush. /...Door body, 2...Door sash, S...Door inner panel, 6...Door actor panel, 7...
Inna Satsush! ...Outta Satsush, lj...
Lower satchel mounting seat part, /4-...Rear lower satchel, /4a...#, installation part. Figure 4 Figure 6 Figure 7 @ Figure 8

Claims (1)

[Claims] (1) For doors in which the door sash is integrally molded with the door body, a lower sash mounting seat part that protrudes toward the inside of the door is embossed on the far side of the door inner panel of the M door, and the rear lower sash is welded and fixed to this seat part. In addition, the upper end of the lower sash is extended above the door waist portion, and the extended portion is welded and fixed to the inner sash gourd end and the outer sash end of the sash rear side of the door sash. A structure for attaching the rear lower seat of an automobile door.