JPH10129263A - Door sash structure of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sealing performance and appearance of the periphery of a door sash. SOLUTION: An extended part 13 projecting to the outside of a rack part 10 provided on the peripheral surface of a car body opening part 10 is formed on a door sash 2, a main seal lip 17 of a door weather strip 15 mounted on the outer periphery of the door sash 2 is brought in close contact with e seal surface 11 to the car chamber side from the rack part 10, a sub seal lip 18 is brought in direct-contact with a seal surface 12 on the car outer side, and therefore, sealing performance is enhanced, the appearance is improved by dispensing with any resin decorative molding, and reduction of cost can be achieved by decreasing the number of parts.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile door sash structure.

[0002]

2. Description of the Related Art As is well known, a door weather strip is mounted on an outer periphery of a door sash of an automobile to seal the inside and outside of a vehicle when the door is closed. A main seal lip and a sub seal lip provided outside the main seal lip and the sub seal lip are often used so as to seal around the vehicle body opening in multiple layers.

On the other hand, pillars such as a rear pillar and a center pillar which constitute a peripheral edge of an opening of a vehicle body have a closed cross-section in a vehicle width direction which increases from an upper side to a lower side so that required pillar rigidity can be obtained. But in this case,
The draw forming depth of the pillar outer is gradually increased from the upper side to the lower side, so that the closed area of the pillar is enlarged.

[0004] When the drawing depth of the lower portion of the pillar outer is increased in this way, the deep drawing tends to cause wrinkles at the peripheral portion which is the peripheral surface of the opening of the vehicle body.
A shelf part is provided in the middle of this peripheral part and stepped molding is performed in a multi-step shape,
The formation of the shelves prevents the occurrence of wrinkles during drawing.

[0005] Therefore, the shelf is exposed to the outside at the portion facing the outer periphery of the door sash on the peripheral surface of the opening of the vehicle body. Therefore, a molding made of a resin material is mounted on the outside of the shelf. With the molding as an intermediate member, the outer surface of the door sash is made substantially flush with the outer surface of the pillar outer to adjust the appearance, and when the door is closed, the sub-seal lip on the outer periphery of the door sash is brought into close contact with the periphery of the molding to seal. (See Japanese Utility Model Laid-Open No. 63-19433).

[0006]

As described above, since the sub-seal lip of the door weather strip is brought into close contact with the peripheral portion of the resin molding, sealing is performed.
The molding reaction of the molding or the deformation with the passage of time causes the sealing reaction force of the sub-seal lip to become non-uniform, and in some cases, a gap may be formed between the sub-seal lip and the molding, and the sealing performance may be impaired.

Also, since the molding exists as a separate member between the door sash and the pillar outer, it is unavoidable that a sense of incongruity will occur, and this will not only be disadvantageous in appearance but also the number of parts and assembly of parts. Work man-hours and the like are increased, which is disadvantageous in terms of cost.

SUMMARY OF THE INVENTION The present invention provides a door sash structure for an automobile which can improve the sealing performance and appearance and reduce the number of parts to reduce the cost.

[0009]

According to the present invention, a shelf is formed at a central portion in a vehicle width direction of a peripheral surface of a vehicle body opening corresponding to an outer periphery of a door sash, and the peripheral surface of the vehicle body opening is formed. While the door sash is provided with an extended portion that extends outside the shelf, a door weather strip is attached to the outer periphery of the door sash over the end face of the extended portion, and when the door is closed, The main seal lip formed on the periphery of the door weather strip near the cabin side is more closely contacted with the sealing surface on the cabin side than the shelf on the peripheral surface of the vehicle body opening, and is attached to the outer periphery of the door weather strip on the outside of the vehicle. The formed sub-seal lip is brought into closer contact with the sealing surface on the vehicle outside than the shelf on the peripheral surface of the vehicle body opening, so that the outer surface of the door sash and the outer surface of the vehicle body panel are substantially flush with each other. .

According to a second aspect of the present invention, the extended portion of the door sash according to the first aspect is formed in a multi-step shape substantially along a cross-sectional shape of a portion where a shelf is formed on a peripheral surface of a vehicle body opening. Features.

According to a third aspect of the present invention, the extended portion of the door sash according to the first and second aspects is formed separately from the door sash.

According to a fourth aspect of the present invention, a weather strip fixed to the inner periphery of the door sash according to the first to third aspects and holding a peripheral portion of the door window panel is provided along the extended portion of the door sash. It is characterized by being formed.

[0013]

According to the first aspect of the present invention, the door sash is provided with an extending portion extending outside the shelf on the peripheral surface of the vehicle body opening, and is provided on the outer periphery of the door sash over the end face of the extending portion. The main seal lip and the sub-seal lip of the installed door weather strip can seal the periphery of the vehicle body in multiple layers, and especially the sub-seal lip is located on the seal surface on the vehicle outside of the shelf around the vehicle body opening. Since the sealing is made in direct close contact, the sealing reaction force of the sub-seal lip can be made substantially uniform unlike the one in which the sub-seal lip is closely contacted with the resin molding, and the sealing performance is further improved. be able to.

Further, as described above, the extended portion of the door sash covers the shelf on the peripheral surface of the vehicle body opening, and the sub-seal lip is brought into close contact with the sealing surface on the outside of the vehicle with respect to the shelf, so that the outer surface of the door sash and the vehicle body are Since the outer surface of the panel is substantially flush with the outer surface, there is no separate member at the parting part between the door sash and the vehicle body panel, so that it does not cause a sense of incongruity. The points can be reduced and the cost can be advantageously obtained.

According to the second aspect, in addition to the effect of the first aspect, the extended portion of the door sash is formed in a multi-step shape substantially along the cross-sectional shape of the portion forming the shelf on the peripheral surface of the vehicle body opening. Therefore, the rigidity of the extending portion can be ensured.

According to the third aspect, in addition to the effects of the first and second aspects, since the extended portion is formed separately from the door sash, only the extended portion can be formed with a large thickness. The supportability of the door weather strip can be improved, and the sealing performance can be improved.

According to the fourth aspect, in addition to the effects of the first to third aspects, the weather strip for holding the peripheral portion of the door window panel is formed along the extended portion of the door sash. A feeling of unity between the strip and the door sash is obtained, and the appearance can be improved.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

In FIGS. 1 to 4, reference numeral 1 denotes a rear door, and 2 denotes a door sash erected on the door waist of the rear door 1 and has a partition sash 3 on the rear side.

Reference numeral 4 denotes a rear door window panel, which is a lift panel 4A which is arranged at the front side of the partition sash 3 and which moves up and down, and a rear side 2a of the partition sash 3 and the door sash 2 which are inclined forward at the rear side. And a partition panel 4B fixedly held by a partition weather strip 5 fitted and fixed to the inner periphery of the partition.

The rear pillar 7 which forms the rear edge of the vehicle body opening 6 corresponding to the outer periphery of the rear side 2a of the door sash 2,
The pillar outer 8 and the pillar inner 9 are formed in a closed section, and the rear pillar 7 gradually increases the drawing forming depth of the pillar outer 8 from the upper side to the lower side to enlarge the pillar closed sectional area to increase required rigidity. Secured.

The lower end of the rear side 2a of the door sash 2 is formed so as to rise substantially vertically from the door waist, while the sash rear side of the peripheral surface of the vehicle body opening 6 is formed. The portion corresponding to the lower end of 2a is formed such that the outer edge of the outer side of the outer side of the pillar outer 8 is gradually and greatly separated rearward from the opening peripheral flange 6a due to the reason of the deep drawing of the pillar outer 8 and the reason of molding. The rear door 1 is drawn and formed so as to be adjacent to the parting line P / L at the rear edge of the waist.

Then, a shelf 10 is formed at the center of the pillar outer 8 at the central portion in the width direction of the vehicle, and the peripheral surface of the opening is multi-stepped. And a first seal surface 11 and a second seal surface 12 where a main seal lip 17 and a sub seal lip 18 of a door weather strip 15 described later are in close contact.
Are gradually separated in the front-rear direction from the portion where the shelf 10 is formed.

On the other hand, at the lower end of the sash rear side 2a,
An extension 1 that extends outside the shelf 10 around the sash
3 and the lower end of the sash rear side 2a is
The width is gradually increased in accordance with the width of 0.

The lower end of the sash rear side 2a is cut off at its outer peripheral portion at a portion corresponding to the formed toe end 10a of the shelf 10, and a sash plate 14 made of a separate member is joined to form the lower end of the sash. The extension part 13 which changes is formed.

The extending portion 13 is provided with the vehicle body opening 6.
Is formed in a multi-step shape substantially along the cross-sectional shape of the portion where the shelf 10 is formed on the peripheral surface.

On the outer periphery of the door sash 2, a main seal lip 17 which is in close contact with the first seal surface 11 of the peripheral surface of the vehicle body opening 6 when the door is closed, and a sub-seal lip 18 which is in close contact with the second seal surface 12 are provided. The door weather strip 15 provided with is fitted and fixed.

The door weather strip 15 is formed by gradually expanding and gradually changing the width of the lower end of the rear side 2a of the sash in accordance with the width of the rear side 2a. The sub-seal lip 18 is disposed on the end face of the extended portion 13 from the edge of the outer periphery of the door sash 2 on the vehicle compartment side to the end surface of the extended portion 13.

The widening gradually changing portion of the door weather strip 15 is formed by cutting the base portion 16 in the longitudinal direction and molding the cut portion to form a wide portion. Even if a molding wire is formed by molding the base member, the base portion 16 is disposed on the back side of the extending portion 13, so that the molding wire is not exposed to the outside and does not impair the appearance.

As the door weather strip 15 is gradually widened and formed at the lower end of the sash rear side 2a, the partition weather is fitted and fixed to the inner periphery of the sash rear side 2a. The rear side of the strip 5 is also gradually widened and formed in accordance with the lower end of the rear side 2a of the sash, so that the partition weather strip 5 and the door sash 2 can be integrated and the appearance can be improved. is there.

In the figure, 19 is a door waist molding, and 20 is a vehicle body side weather strip which is fitted and fixed to the peripheral flange 6a of the vehicle body opening 6 and is in close contact with the side surface of the door sash 2 on the vehicle interior side when the door is closed. .

According to the structure of the above embodiment, the portion corresponding to the lower end of the rear side 2a of the sash on the peripheral surface of the vehicle body opening 6 is provided with the reason for deep drawing of the pillar outer 8 and the reason for molding. And the shelf is formed in a multi-stage shape by forming a shelf 10 at the center portion in the vehicle width direction, and a shelf is formed at the lower end of the rear side 2a of the door sash 2. 10, the main seal lip 1 of the door weather strip 15 attached to the outer periphery of the door sash 2 over the end face of the extended portion 13.
7 and the sub-seal lip 18 are in close contact with the first sealing surface 11 and the second sealing surface 12 on the peripheral surface of the vehicle body opening 6, so that the periphery of the vehicle body opening 6 can be sealed multiple times. As described above, the seal lip 18 is directly in close contact with the second seal surface 12 for sealing, so that the sealing reaction force can be made substantially uniform, and the conventional sub-seal lip is closely contacted with a resin molding to seal. In comparison with this, the sealing property can be further improved.

In particular, if the extending portion 13 is formed separately from the door sash 2 as in this embodiment, only the extending portion 13 can be formed into a thick plate, and the door weather strip at the extending portion 13 can be formed. 15 and the sealing performance can be improved.

Further, the extension 10 on the rear side 2a of the sash covers the shelf 10 around the opening of the vehicle body, and the sub-seal lip 1
Since the outer surface of the door sash 2 and the outer surface of the pillar outer 8 which is a vehicle body panel are aligned substantially flush with each other by making the outer surface of the door sash 2 closer to the second seal surface 12 outside the vehicle than the shelf portion 10, Unlike the conventional structure using a molding, a separate member does not exist at the parting part between the door sash 2 and the pillar outer 8 so that a sense of incongruity does not occur, and the appearance can be further improved and the number of parts can be reduced. And can be advantageously obtained in terms of cost.

Further, since the extending portion 13 is formed in multiple steps substantially along the cross-sectional shape of the portion where the shelf 10 is formed on the peripheral surface of the vehicle body opening, the rigidity of the extending portion 13 is ensured. be able to.

In the above-described embodiment, the widening gradually changing portion with the shelf 10 is formed at the lower portion of the front edge of the pillar outer 8 of the rear pillar 7, while the extending portion 13 is formed at the lower end of the sash rear side 2 a of the door sash 2. Is formed, and the width of the pillar is gradually changed. However, the front edge of the pillar outer 8 is formed as a widening gradually changing portion with the shelf 10 from the upper side to the lower side.
On the other hand, it is also possible to form a structure in which the rear side 2a of the sash is formed so as to extend from the upper side to the lower side as a whole and the width thereof is gradually changed.

The present invention is not limited to the structure around the rear side of the rear door sash and around the rear pillar, but also applies to the structure around the center pillar, the rear side of the front door sash, and the front side of the rear door sash. be able to.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the present invention, taken along line AA of FIG.

FIG. 2 is a sectional view of the same embodiment, taken along line BB of FIG. 5;

FIG. 3 is an exemplary perspective view showing a state when the door is opened according to the embodiment;

FIG. 4 is an exemplary perspective view showing the door weather strip of the embodiment;

FIG. 5 is a schematic side view showing a structure around a rear side of the rear door sash employing the structure of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 Door sash 6 Body opening 8 Body panel 10 Shelf 11 Sealing surface closer to the cabin than the shelf 12 Sealing surface on the vehicle exterior side of the shelf 13 Extended portion 15 Door weather strip 17 Main seal lip 18 Sub seal lip

Claims (4)

[Claims] 1. A shelf is formed at a central portion in a vehicle width direction of a peripheral surface of a vehicle body opening corresponding to an outer periphery of a door sash, and the vehicle body opening peripheral surface is formed in a multi-stage shape, while the door sash is formed on the door sash. An extended portion that extends outside the shelf is provided, and a door weatherstrip is attached to the outer periphery of the door sash over an end surface of the extended portion. When the door is closed, a peripheral portion of the door weatherstrip closer to the passenger compartment side is provided. The main seal lip formed on the side of the vehicle body opening is more closely contacted with the sealing surface on the vehicle cabin side than the shelf on the peripheral surface of the vehicle body opening, and the sub seal lip formed on the outer peripheral portion of the door weather strip on the vehicle outer side is fitted with the peripheral surface of the vehicle body opening. A door sash structure for an automobile, wherein the outer surface of the door sash and the outer surface of the vehicle body panel are substantially flush with each other by making the outer surface of the door sash and the outer surface of the vehicle body panel more closely align with each other than the shelf portion of the vehicle. 2. The door sash for an automobile according to claim 1, wherein the extended portion of the door sash is formed in a multi-step shape substantially along a cross-sectional shape of a portion where a shelf is formed on the peripheral surface of the vehicle body opening. Construction. 3. The door sash structure for an automobile according to claim 1, wherein the extended portion of the door sash is formed separately from the door sash. 4. A weather strip fixed to an inner periphery of the door sash and holding a peripheral portion of the door window panel is formed along an extended portion of the door sash. An automobile door sash structure according to any of the claims.