JP3133843B2 - Automotive door seal structure - Google Patents

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 seal structure in which a seal member is attached to an outer periphery of a door sash of an automobile door to seal a gap between the door sash and a vehicle body opening edge.

[0002]

2. Description of the Related Art For example, Japanese Unexamined Utility Model Publication No. 1-141156 discloses a hollow main seal 33 attached to a door sash 31 and pressed against a door opening edge of a vehicle body 32 as shown in FIG. And a sub-seal lip 35 extending from the upper edge of the molding portion 34 to the outer peripheral side of the door and pressing against the edge of the door opening. It is shown. The hollow main seal 33 has a base portion 36 fitted in a groove 37 of the door sash 31. The lower end of the molding 34 is bent in a hook shape, and is engaged with the projection 38 of the door sash 31. A substantially U-shaped core 39 is embedded from the upper part of the molding part 34 to the hollow main seal 33 side.

[0003]

The above construction has the advantage that the number of parts can be reduced because the hollow main seal 33 and the molding part 34 are integrated as the sealing member 30, but, on the other hand, the door corner part is reduced. Terminal processing is troublesome. For example, at the rear end of the front door or at the front end of the rear door, it is desirable to continuously dispose the molding portion 34 over the front and rear doors, so that it is exposed outside the vehicle as shown in FIGS. Leave the molding part 34 and the sub-seal lip 35 slightly longer and leave the hollow main seal 3
3 and the base portion 36 need to be cut and connected by molding to the upper end portion of the door weather strip 40 arranged vertically.

However, in the conventional seal member 30, as shown in FIG. 8, when the hollow main seal 33 side and the molding part 34 side are separated by the cutter 41, the core metal 39 is inserted inside. The cutting work is difficult, and there is a problem that the molding part 34 is deformed or the cut surface becomes very dirty. In addition, there is a problem that the cut metal core 39 is exposed and rusted.

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, and the lower end of the molding portion 34 is further fitted to the projection of the door sash 31. Since it is necessary to perform three steps, namely, hooking on the line 38, there is a drawback in that it takes a long time to perform a mounting operation on a line.

[0006]

According to the present invention, a hook portion curved toward the outside of the vehicle is formed on the outer peripheral surface of the door of the door sash.
A sealing structure for an automobile door, wherein a molding support portion is bent into a wall shape substantially along a door surface, and a locking portion is bulged at a tip of the molding support portion. A seal member to be mounted is disposed on the outer peripheral surface of the door of the door sash, and a base portion having a side edge on the inside of the vehicle engaged with and fixed to the hook portion is formed integrally with the base portion. A hollow main seal and an end disposed along the outer surface of the molding support portion and bent into 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 metal core having a U-shaped cross section embedded in the molding part, a sub-seal lip formed integrally with the molding part and extending to the outer peripheral side of the door; Protruding from the outside edge 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 construction, the molding part to be extended along the outer surface of the door sash at the corner part of the door and the hollow main seal cut at a predetermined position for connection by molding are simply connected by a thin part. So that they can be easily separated from each other.

When the sealing member is mounted on the door sash, the U-shaped section of the molding is pushed into the molding supporting portion of the door sash so that the molding is fixed by the locking portion and the base is fixed. 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 toward 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]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One 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 a 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. A glass run supporting portion 3 is formed in a central portion on the inner peripheral side of the door in a wall shape substantially along the door surface. Are fitted. Further, a hook portion 6 which is curved toward the vehicle outside is formed at the center of the outer surface of the door. A molding support portion 7 extending substantially along the door surface toward the outer periphery of the door is formed in a wall-like shape at a side edge on the vehicle outer side of the door sash 2, and a locking portion 8 is provided at the tip thereof.
Are bulged.

In FIG. 1, reference numeral 9 denotes 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 formed of sponge rubber. And the sub-seal lip 13 are formed of solid rubber.

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

The molding portion 12 is for decorating the door sash 2 and has a flat band shape disposed along the outer surface of the molding supporting portion 7. The upper end of the molding portion 12 is bent in a U-shaped cross section toward the inside of the vehicle, and forms an engaging groove 17 that engages with the locking portion 8.
Note that a projection 18 is provided in the engagement groove 17 to prevent it 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 vehicle interior side of the molding section 12
Has a sub-seal lip 13 formed integrally and continuously at the upper end thereof. The sub-seal lip 13 extends to the outer peripheral side of the door and comes into pressure contact with a not-shown door opening edge together with the hollow main seal 11.

FIG. 3 is an explanatory view showing an attaching process when attaching the sealing member 1 having the above structure to the door sash 2. As shown in FIG.
In this state, the engagement groove 17 of the molding 12 is pressed into the molding support 7 of the door sash 2 as shown by the arrow F in a state of being placed on the outer peripheral surface of the door. By this press-fitting, the locking portion 8 of the molding support portion 7 is fitted 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. You. At the same time, the base portion 10 slides toward the inside of the vehicle with the lowering of the molding portion 12, and the protrusions 14 on the side edges thereof naturally fit into the hook portions 6. Thereby, the base part 10 is fixed to the door sash 2 together with the hollow main seal 11. In other words, the seal member 1 can be formed by a simple operation of simply press-fitting in one direction.
The whole can be mounted on the door sash 2, and the mounting work on the line can be processed in a very short time. In this mounting state, as shown in FIG. 1, the bead 16 of the base 10 is in pressure contact with the base 12 a of the molding 12. Therefore, the base portion 10 is urged inward by the reaction force, so that the engagement between the base portion 10 and the hook portion 6 is reliably maintained. That is, the base portion 10 does not easily come off even if it receives an external force.

On the other hand, in the sealing member 1 having the above-described structure, the base portion 10 and the molding portion 12 are connected via the thin portion 15, so that when the terminal processing is performed at the door corner portion or the like, both ends are formed in the thin portion 15. Can be separated very easily. FIG. 4 shows the terminal treatment of the sealing member 1 at the door corner, and the molding 12 and the sub-seal lip 13
And is extended as it is to a line b along the door edge. The base portion 10 and the hollow main seal 11 are cut through the line a and connected to the upper end of a weather strip 20 arranged in the up-down direction via a molded portion 21. Here, the mall section 1
As shown in FIG.
The thin portion 15 is easily cut by inserting the cutter 22 along the groove 23 formed between the two. Since the cut width is short, the cut surface can be made clean. In addition, since the core metal 19 is independently buried on the side of the molding portion 12 that is extended, deformation is prevented, and the shape is reliably maintained.

[0019]

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

[Brief description of the 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 sectional view of the seal member in the seal structure in a free state.

FIG. 3 is an explanatory view when the seal member is mounted on a door sash.

FIG. 4 is an explanatory view showing terminal processing of a seal member at a door corner.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

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

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

FIG. 8 is a sectional view taken along the line BB of FIG. 7;

FIG. 9 is an explanatory view when the conventional seal member is mounted on a door sash.

[Explanation of symbols]

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

Claims (1)

(57) [Claims] 1. A door support having a hook portion curved outwardly on a door outer peripheral surface of a door sash, and a molding support portion formed on a side edge of the door sash on the vehicle outer side in a wall shape substantially along the door surface. A seal structure for an automobile door formed by bending and forming a locking portion at a tip end of the molding support portion, wherein a seal member attached to the door sash includes a door outer periphery of the door sash. A base portion, which is disposed on the surface, and a side edge of the inside of the vehicle is engaged with and fixed to the hook portion, a hollow main seal formed integrally with the base portion, and an outer surface of the molding support portion. An end portion that is disposed along and bent into a U-shaped cross section is fitted and fixed to the locking portion, and is connected to the base portion via a thin-walled portion. U buried inside
A metal core having a U-shaped cross section, a sub-seal lip formed integrally with the molding portion and extending toward the outer periphery of the door, and protruding from a side edge of the base portion on the outer side of the vehicle, and having the door sash attached thereto. And a bead that presses against a base of the molding part.