JPH1148793A - Door weather strip - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lower producing cost and to provide high bonding force and high sealing performance by pressing a synthetic resin insert having projections for preventing loose-out of a bonding part into a fitting hollow part, and thereafter, adhering it with an adhesive agent. SOLUTION: A synthetic resin insert 20 provided with plural projecting pieces 21 from side surfaces thereof is pressed into a fitting hollow part 15 of one bonding end 11, and a residual part of the synthetic resin insert 20 is pressed into a fitting hollow part 15 of the other bonding end 12, and both the bonding ends 11, 12 are adhered at points by the instantaneous adhesive agent. With this structure that a bonding part 30 is formed by pressing the synthetic resin insert 20 and adhering it with an adhesive agent 17, a bonding process is simplified, and the cost can be reduced. Since plural projecting pieces 21 are projected from both side surfaces of the synthetic resin insert 20 in a direction, in which the bonding part is hard to be loosen out, loose-out of the bonding part is securely prevented, and high bonding force can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door weather strip of a type to be mounted around a door of a vehicle so as to seal between the body and a door.

[0002]

2. Description of the Related Art A description will be given with reference to FIGS.
In the figure, a symbol is used in which one of the midlines descended from the apex angle of the isosceles triangle is painted, and the painted side represents a molded part, and the non-painted side represents an extruded part. . Door 5
As the door weather strip to be attached to the door 50, there is a type in which a single extruded door weather strip 10 attached along the outer periphery of the door 50 is joined at the substantially central portion of the lower edge of the door 50 at both joining ends.

[0003] Conventionally, as joining means of this kind of door weather strip, joining ends 11 and 12 are formed by a molding portion 19.
Is used as the most reliable means (FIG. 4). However, this vulcanization bonding technique has a problem in that the number of steps is required and the cost is increased.

As another prior art, a pad 90 made of soft styrene / butadiene rubber or the like is inserted into the hollow main seal hollow portion 14 and the joining ends 11 and 12 are joined with an instant adhesive 17 such as Alon. There is something (Fig. 5). However, in this prior art, the adhesive force is insufficient, and the pad 90 is inserted into the main seal hollow portion 14, so that the seal reaction force of the pad insertion portion is smaller than that of the non-pattern insertion portion. On the contrary, there is a problem that the sealing property is inferior.

[0005]

The problem to be solved is that, in the above-mentioned conventional door weatherstrip, the joining is costly and the joining ends 11, 1 are increased.
2 is a problem that the adhesive strength is insufficient or the sealing property is inferior.

[0006]

A description will be given with reference to FIGS. 1 to 3 and FIGS. 6 to 9. The present invention relates to a structure in which the joining ends of an extruded door weather strip attached along the periphery of the door are joined to each other.
The joining portion 30 is joined by press-fitting a synthetic resin insert 20 having a protrusion 21 for preventing withdrawal into the mounting hollow portion 15, and further bonded with an adhesive 17.

In the present invention, the clip 70 to be inserted into the door 50 can be integrally formed with the synthetic resin insert 20 described above.

[0008]

Embodiments of the present invention will be described. 60 is a body, 50 is a door, 10 is an extruded door weather strip attached along the periphery of the door 50, 13 is a main seal, 14 is a main seal hollow portion,
Reference numeral 16 denotes a mounting base, reference numeral 15 denotes a mounting hollow portion, and reference numerals 11 and 12 denote joining ends. The synthetic resin insert 20 is press-fitted halfway into the mounting hollow portion 15 of the one joint end 11 (FIG. 7),
The remaining portion of the synthetic resin insert 20 is press-fitted into the mounting hollow portion 15 of the other joining short 12 and both joining ends 11,
12 is spot-bonded with an instant adhesive (for example, Aron adhesive) (FIG. 8).

The synthetic resin insert 20 is set to have a size corresponding to the hollow shape of the mounting hollow portion 15 and has a plurality of projecting pieces 21 protruding from a side surface thereof. This protruding piece 2
Reference numeral 1 designates a boundary in the middle of the longitudinal direction of the synthetic resin insert 20 and projecting directions are opposite to each other.

Conventional synthetic resin insert materials have been used by being press-fitted into the hollow portion of a weather strip having a U-shaped metal core material embedded mounting portion or a hollow portion such as a trim.
Since the clip portion is relatively rigid, the synthetic resin insert material to be joined is easily broken. However, the extruded door weather strip, which is the object of the present invention, does not have a metal core, so it is broken like a conventional synthetic resin insert. The problem of being easy does not occur.

[0011] Another embodiment of the present invention will be described.
Can be integrally molded, thereby further reducing costs (FIG. 9).

The operation will be described.
Since the synthetic resin insert 20 is press-fitted and bonded by the adhesive 17, the joining process is simplified and the cost is reduced. Further, since the plurality of projecting pieces 21 are provided on both side surfaces of the synthetic resin insert 20 so as to project in a direction in which the projecting pieces cannot come out, the joining portion is securely prevented from coming out, and a high joining force can be obtained.

Further, the synthetic resin insert 20 is press-fitted into the mounting hollow portion 15 for mounting to the door 50, instead of the hollow main seal hollow portion 14 for achieving sealing with the body 60 like the conventional pad 90. Therefore, high sealing performance can be ensured without deteriorating the sealing performance of the main seal 13. further,
Since the mounting hollow portion 15 is provided in the mounting base 16 of the weather strip 10, the bonding can be performed in an appropriate positional relationship without causing a shift in the bonding portion.

In the synthetic resin insert 20 in which the clip 70 is integrally molded, it is not necessary to separately mold the clip 70 to be inserted into this portion, so that the process can be simplified and the cost can be further reduced. it can.

[0015]

According to the present invention, the synthetic resin insert 20 having the projecting piece 21 for preventing the joining portion 30 from being pulled out is pressed into the mounting hollow portion 15 and then bonded with an adhesive. , And high joining force and sealing performance can be obtained.

In the case where the clip 70 is integrally formed with the synthetic resin insert 20, the production process and production cost can be further reduced.

[Brief description of the drawings]

FIG. 1 is a side view of an automobile to which the present invention and a prior art door weatherstrip are mounted.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an overall side view of the door weather strip of the present invention and the prior art.

FIG. 4 is a perspective view showing a joining portion of a door weather strip according to the related art.

FIG. 5 is a perspective view showing a joint portion of a door weather strip according to another related art.

FIG. 6 is a perspective view showing a synthetic resin insert used for the door weather strip according to one embodiment of the present invention.

FIG. 7 is a perspective view showing a semi-joined state of the door weather strip according to the embodiment of the present invention.

FIG. 8 is a perspective view showing a joined state of the door weather strip according to the embodiment of the present invention.

FIG. 9 is a perspective view showing a joined state of a door weather strip according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Weather strip 11 Joining end 12 Joining end 13 Main seal 14 Main seal hollow part 15 Mounting hollow part 16 Mounting base 17 Adhesive 19 Molding part 20 Synthetic resin insert 21 Protrusion piece 30 Joining part 50 Door 60 Body 70 Mounting Clip 90 pad

Claims (2)

[Claims] 1. A structure for joining joining ends of an extruded door weather strip attached along a peripheral edge of a door, wherein the joining end (11, 12) has a mounting hollow portion (15) for preventing removal. A door weatherstrip in which a synthetic resin insert (20) having a projecting piece (21) is press-fitted to join a joint (30) and further adhered with an adhesive (17). 2. A structure for joining joining ends of an extruded door weather strip attached along a peripheral edge of a door, wherein a protrusion for preventing extraction is provided at a mounting hollow portion (15) of the joining ends (11, 12). The vehicle door (5) having a piece (21)
Pressing a synthetic resin insert (20) integrally molded with a mounting clip (70) to be inserted into the joint (0) into the joint (30)
And a door weatherstrip bonded with an adhesive (17).