JPH06135288A - Door seal structure for automobile - Google Patents

Abstract

PURPOSE:To simplify the attachment of a seal member to a door sash and to facilitate the treatment for the terminal end of the seal member at a door corner part. CONSTITUTION:A seal member 1 is composed of a base part 10, a hollow main seal 11, a molding part 12 and a subseal part 13 which are integrally extrusion- molded. One end of the base part 10 is engaged in a hook part 6, and the molding part 12 is fitted in a molding support part 7 so as to attach the seal member 1. The attachment of the seal member is firmed by a reaction force through the press-contact of a bead 16. The molding part 12 and the base part 10 are connected together by means of a thin wall part 15 so that they can be easily cut away from each other during terminal end treatment in which the molding part 12 is extended longer than the base part 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a sealing structure in which a sealing member is attached to the outer periphery of a door sash of an automobile door to seal a gap between the vehicle body opening edge.

[0002]

2. Description of the Related Art For example, in Japanese Utility Model Laid-Open No. 1-141156, as shown in FIG. 6, a hollow main seal 33 attached to a door sash 31 side and in pressure contact with a door opening edge on a vehicle body 32 side, and a door sash 31. A door seal structure using a seal member 30 in which a molding portion 34 that covers the outer side surface of the housing and a sub-seal lip 35 that extends from the upper edge of the molding portion 34 to the door outer peripheral side and is in pressure contact with the door opening edge is used. It is shown. The base portion 36 of the hollow main seal 33 is fitted and attached to the groove portion 37 of the door sash 31. Further, the lower end of the molding portion 34 is curved in a hook shape and is engaged with the protruding portion 38 of the door sash 31. A substantially U-shaped mandrel 39 is embedded so as to extend from the upper portion of the molding portion 34 to the hollow main seal 33 side.

[0003]

In the above structure, since the hollow main seal 33 and the molding portion 34 are integrated as the sealing member 30, there is an advantage that the number of parts can be reduced. On the other hand, on the other hand, the door corner portion is provided. The terminal processing at is troublesome. For example, at the rear end portion of the front door or the front end portion of the rear door, it is desirable to continuously arrange the molding portions 34 over the front and rear doors. Therefore, as shown in FIGS. Hollow main seal 3 with molding part 34 and sub seal lip 35 left slightly longer
3 and the base portion 36 must be cut and connected to the upper end portion of the door weather strip 40 arranged in the vertical direction by molding.

However, in the conventional seal member 30, as shown in FIG. 8, when the hollow main seal 33 side and the molding portion 34 side are separated by the cutter 41, the core metal 39 is contained therein, There are problems that the cutting work is difficult, the molding 34 is deformed, and the cut surface becomes very dirty. Moreover, there is a problem that the cut cored bar 39 is exposed and rusts.

When the seal member 30 is mounted, as shown in FIG. 9, both ends of the base portion 36 are fitted into both ends of the groove portion 37 of the door sash 31, respectively, and the lower end of the molding portion 34 is further protruded from the door sash 31. Since it requires three steps of hooking on the wire 38, there is a drawback that it takes a long time to perform the mounting work on the line.

[0006]

According to the present invention, a hook portion curved toward the vehicle outer side is formed on a door outer peripheral surface of a door sash, and a vehicle outer side edge of the door sash is provided.
A seal structure for an automobile door, in which a molding support portion is bent in a wall shape substantially along a door surface, and a locking portion is formed to bulge at a tip of the molding support portion. The seal member to be mounted is disposed on the outer peripheral surface of the door of the door sash, and the side edge on the inside of the vehicle engages with the hook portion to be fixed, and is integrally formed with this base portion. The hollow main seal and the end portion arranged along the outer side surface of the molding support portion and bent in a U-shaped cross section are fitted and fixed to the locking portion, and a thin portion is formed on the base portion. A molding part connected through the molding part, a core metal having a U-shaped cross section embedded in the molding part, a sub-seal lip integrally formed with the molding part and extending to the outer peripheral side of the door, and the base. Part of the vehicle outside of the vehicle It is characterized in that it comprises a bead which presses against the base of the molding part in Interview mounted state.

[0007]

In the above structure, the molding portion to be extended along the outer surface of the door sash at the corner portion of the door and the hollow main seal cut at a predetermined position for connection by molding are simply connected by a thin portion. It is easy to separate the two.

Further, when the seal member is attached to the door sash, the U-shaped section of the molding portion is pushed into the molding supporting portion of the door sash. The side edge on the vehicle inner side of the portion naturally engages with the hook portion and is fixed. Then, the base portion is pushed to the inside of the vehicle by the reaction force due to the pressure contact between the bead and the molding portion base portion, so that the attached state is reliably maintained.

[0009]

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

FIG. 1 is a sectional view showing a state in which a seal member 1 according to the seal structure of the present invention is attached to a door sash 2, and FIG. 2 is a sectional view of the seal member 1 in a free state.

The door sash 2 is formed by bending a metal plate, and a glass run supporting portion 3 is formed in a wall shape substantially along the door surface at the center of the inner peripheral side of the door. The welted part 5 of is fitted. Further, a hook portion 6 that curves toward the outside of the vehicle is formed in the center of the surface on the outer peripheral side of the door. At a side edge of the door sash 2 on the vehicle outer side, a molding support portion 7 extending substantially along the door surface to the outer peripheral side of the door is provided in a wall-like shape, and a locking portion 8 is provided at the tip thereof.
Is bulged.

In FIG. 1, reference numeral 9 indicates a door glass.

The seal member 1 is integrally extruded from a rubber material. The hollow base portion 10 and the hollow main seal 11 are made of sponge rubber, and the molding portion 12 is formed. And the sub seal lip 13 are made of solid rubber.

The base portion 10 has a protruding portion 14 which can be fitted with the hook portion 6 on the side edge on the inside of the vehicle, and the hollow main seal 11 is integrally connected to the upper portion thereof. The side edge of the base portion 10 on the vehicle outer side is connected to the base portion 12 a on the vehicle inner side of the molding portion 12 via the thin portion 15. A bead 16 is provided so as to project obliquely upward at a position above the thin portion 15. The thin portion 15 also serves as a boundary between the solid rubber and the sponge rubber.

The molding portion 12 is used to decorate the door sash 2, and has a flat band shape which is arranged along the outer surface of the molding supporting portion 7. The upper end of the molding 12 is bent toward the inside of the vehicle in a U-shaped cross section to form an engagement groove 17 that engages with the locking portion 8.
A protrusion 18 is provided in the engagement groove 17 to prevent the engagement from coming off. A core metal 19 having a U-shaped cross section is embedded in the molding portion 12 so as to surround the engagement groove portion 17.

A base 12a on the inner side of the molding 12
Extends obliquely toward the inside of the vehicle, and a sub-seal lip 13 is integrally and continuously formed at the upper end thereof. The sub-seal lip 13 is extended to the outer peripheral side of the door and is configured to come into pressure contact with a door opening edge (not shown) together with the hollow main seal 11.

FIG. 3 is an explanatory view showing a mounting process when the seal member 1 having the above-mentioned structure is mounted on the door sash 2. As shown in FIG.
It is sufficient to press the engagement groove portion 17 of the molding portion 12 into the molding supporting portion 7 of the door sash 2 as indicated by an arrow F while being placed on the outer peripheral surface of the door. By this press-fitting, the locking portion 8 of the molding support portion 7 fits into the engagement groove portion 17 and is prevented from coming off by the projection portion 18, so that the molding portion 12 is fixed to the molding support portion 7 together with the sub-seal lip 13. It At the same time, as the molding portion 12 descends, the base portion 10 slides toward the inside of the vehicle, and the protrusion portion 14 on the side edge thereof naturally fits into the hook portion 6. As a result, the base portion 10 is fixed to the door sash 2 together with the hollow main seal 11. That is, the seal member 1 can be easily operated by pressing in one direction.
The whole can be attached to the door sash 2, and the attachment work on the line can be processed in an extremely short time. Further, in this mounted state, as shown in FIG. 1, the bead 16 of the base portion 10 is in pressure contact with the base portion 12a of the molding portion 12. Therefore, the reaction force urges the base portion 10 toward the inside of the vehicle, and the engagement between the base portion 10 and the hook portion 6 is reliably retained. That is, the base portion 10 does not easily come off even if an external force is applied.

On the other hand, in the seal member 1 having the above-mentioned structure, since the base portion 10 and the molding portion 12 are connected through the thin wall portion 15, both ends of the thin wall portion 15 are subjected to terminal treatment at a door corner portion or the like. Can be separated very easily. FIG. 4 shows the terminal treatment of the seal member 1 at the door corner portion, and the molding portion 12 and the sub-seal lip 13 have the base portion 10 at the line a.
It is cut off from and is directly extended to the line b along the edge of the door. The base portion 10 and the hollow main seal 11 are cut along the line a and are connected to the upper end of the weather strip 20 arranged in the up-down direction via the molding portion 21. Here, the mall part 1
2 and the base portion 10, as shown in FIG.
The thin wall portion 15 is easily cut by inserting the cutter 22 along the groove portion 23 formed between the two. And because the cutting width is short, the cutting surface can be made clean. Further, since the cored bar 19 is embedded independently on the side of the molding part 12 to be extended, deformation is prevented and its shape is reliably retained.

[0019]

As is apparent from the above description, according to the automobile door seal structure of the present invention, the seal member in which the hollow main seal and the molding portion are integrated is simply unidirectionally attached to the door sash. It can be installed only by press-fitting work, and the work time on the vehicle body outfitting line can be shortened. Further, the hollow main seal side and the molding part side can be separated very easily at the time of terminal processing at the door corner portion and the like, and the processing can be facilitated and the deterioration of the appearance at the separated portion can be prevented as much as possible.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a door showing a seal structure according to the present invention.

FIG. 2 is a cross-sectional view of a seal member in this seal structure in a free state.

FIG. 3 is an explanatory view when the seal member is attached to a door sash.

FIG. 4 is an explanatory view showing a terminal treatment of a seal member in a door corner portion.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a cross-sectional view showing a conventional seal structure.

FIG. 7 is an explanatory view showing a terminal treatment of a seal member in a door corner portion of this conventional example.

8 is a sectional view taken along line BB of FIG.

FIG. 9 is an explanatory view when mounting this conventional seal member on a door sash.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Seal member 2 ... Door sash 6 ... Hook part 7 ... Mall support part 8 ... Locking part 10 ... Base part 11 ... Hollow main seal 12 ... Mold part 13 ... Sub seal lip 15 ... Thin part 16 ... Bead 19 ... Core Money

Claims (1)

[Claims] 1. A hook portion curved toward the vehicle exterior is formed on the outer peripheral surface of the door of the door sash, and a molding support portion having a wall shape substantially along the door surface is formed at a side edge of the door sash on the vehicle exterior side. A seal structure for an automobile door, which is formed by bending and a locking portion is bulged at a tip of the molding support portion, wherein a sealing member mounted on the door sash is a door outer periphery of the door sash. A base portion which is disposed on a surface and whose inner side edge is fixed by engaging with the hook portion, a hollow main seal integrally formed on the base portion, and an outer surface of the molding support portion. End portions bent along the U-shaped section are fitted and fixed to the locking portions, and a molding portion connected to the base portion through a thin portion, and a molding portion of the molding portion. U buried inside
A core bar having a V-shaped cross section, a sub-seal lip formed integrally with the molding portion and extending to the door outer peripheral side, and protrudingly provided on a side edge of the base portion on the vehicle outer side, the door sash mounted state A seal structure for an automobile door, comprising a bead that is in pressure contact with the base of the molding part.