JPH0672259A - Weather strip for automobile - Google Patents

Abstract

PURPOSE:To enable the respective end sections of a hollow seal section to be easily joined therewith by means of metal molds, and also to be freely bent as well as to facilitate the installation works in the assembly line of automobiles while maintenance management is being secured. CONSTITUTION:A weather strip 21 consists of both a metallic retainer 23 and a hollow seal section 24 separately formed. The base section 37 of the hollow seal section 24 is squeezed in an engaging hold section 27 provided for one end section of the retainer 23 so as to be fixed, and concurrently the locking sections 38a and 38b of the hollow seal section 24 are detachably provided for an engaging section 31 provided for the other end section of the retainer 23, so that the hollow seal section 24 can thereby be opened/closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weather strip for an automobile which is attached to an opening edge of a vehicle body and seals a window edge of a sashless door.

[0002]

2. Description of the Related Art As a conventional structure for mounting a weather strip for an automobile of this type, for example, ones shown in FIGS. 4 and 5 are known (see Japanese Utility Model Laid-Open No. 3-69525).

That is, the weather strip 1 is attached to a roof side rail 3 which forms an opening edge of a vehicle body of a sashless door type vehicle 2, and an installation base 4 which is inclined from an inner edge of the vehicle interior side. Rising piece 4
and a hollow seal portion 5 provided integrally with a. The mounting base 4 has a locking portion 6 bent in a substantially U-shape at one end outside the vehicle, and a core metal 7 is embedded inside the locking base 6 and the rising piece 4a. Has been done. Further, the hollow seal portion 5 is formed integrally with the mounting base portion 4 by extrusion molding, and is opened and closed with the joint portion 9 of the continuous piece 8 and the rising piece 4a extending from the direction substantially orthogonal to the rising piece 4a as a fulcrum. The engaging groove 10 is freely provided, and the engaging groove 10 provided on the outer edge of the vehicle is engaged with the engaging portion 6 so that the closed state can be maintained.

The cored bar 7 is integrally embedded when the hollow seal part 5 is extruded so as to improve the mounting strength of the mounting base part 4 and the like to the roof side rail 3 by the screw 11. Has become.

[0005]

However, in the conventional weather strip 1, as described above, the mounting base portion 4 is used.
Although a cored bar 7 is embedded in the entire inside of the locking part 6 and the rising piece 4a to strengthen the rigidity, the presence of such a cored bar 7 causes the end strips of the weather strip 1 to be joined to each other. At this time, it becomes difficult to mold the mold, and it becomes difficult to freely bend the entire weather strip 1 when mounting along the opening edge of the vehicle body.

That is, at the corners or the like at the opening edge of the vehicle body, the core metal 7 holds the weather strip 1 in a linear shape when the divided ends of the weather strip 1 are butt-joined by die molding. Therefore, the die cannot be molded unless the outer end portions protruding from the die are held. As a result, the die itself must be upsized to hold each outer end,
The space for installing the mold becomes large.

Further, when the entire weather strip 1 is bent, the hollow seal portion 5 is crushed and deformed due to the strong rigidity of the core metal 7, which makes it difficult to bend in a particularly three-dimensional manner, and the shape of the opening edge of the vehicle body becomes difficult. Can no longer be placed along.

[0008]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above problems of the prior art. It is a metal retainer fixed to an opening edge of a vehicle body, and a retainer engaged with and retained by the retainer. A weather strip for an automobile having a rubber hollow seal portion for sealing an edge of glass, while providing a fitting holding portion at one end portion of the retainer, and an engaging portion at the other end portion, A base portion that is caulked and fixed in the fitting holding portion is provided at one end of the hollow seal portion,
It is characterized in that the other end is provided with a locking portion which is engaged with and disengageably engaged with the engaging portion.

[0009]

According to the present invention having the above-mentioned structure, since the metal retainer and the rubber hollow seal portion are separate bodies, they can be molded separately, and in particular, the molding of each end portion of the hollow seal portion is performed by the die at the outer end. Since it is not necessary to hold the part, the molding operation is facilitated and the mold can be miniaturized as much as possible.

Further, when attaching the weather strip to the opening edge of the vehicle body, the retainer is previously bent along the opening edge of the vehicle body and attached by screws or the like, and then the hollow seal portion is bent while adjusting the shape along the retainer. Fix the base part by crimping the fitting holding part. Therefore, the hollow seal portion can be freely bent while maintaining its shape, and can be reliably fixed to the retainer.

Further, after the base portion of the hollow seal portion is caulked and fixed to the fitting holding portion of the retainer which is bent in a predetermined shape in advance, the integrated weather strip is directly attached to the vehicle body on the vehicle assembly line. Since it can be attached, the attaching work is facilitated and the maintenance management up to the assembly line is also facilitated.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows a first embodiment in which a vehicle weather strip 21 according to the present invention is applied to a roof side rail 22 of a sashless door type vehicle.

That is, the roof side rail 22 is formed by joining an inner panel 22a and an outer panel 22b, and the inner panel 22a of the outer panel 22b is joined.
A flat mounting surface 22c is formed in the vicinity of the joint end portion with and a screw hole 22d is formed in the mounting surface 22c.

The weather strip 21 is mainly composed of a bent metal retainer 23 and a rubber hollow seal portion 24 engaged with and held by the outer surface of the retainer 23.

The retainer 23 is entirely formed by bending into a predetermined shape by roll forming, and has a mounting base portion 26 which is bent in a step-like shape in a substantially U shape so as to contact the mounting surface 22c of the outer panel 22b, and the mounting base portion. The fitting holding portion 27 that rises substantially vertically from the inner edge of the vehicle 26, the rising piece 28 that rises obliquely from the outer edge of the mounting base portion 26, and the folded portion at the outer edge of the rising piece 28. It is composed of a drip molding 30 which is bent outward through 29. A screw insertion hole 26a is formed at a substantially central position of the mounting base portion 26, and a belt-shaped seal member 25b is provided outside the vehicle along the longitudinal direction.
Further, the fitting holding portion 27 has a substantially U-shaped cross section,
Both parallel side pieces 27a, 27b are extended in a relatively long length. Further, a protruding rubber engaging portion 31 is provided at a substantially central position of the inner end surface of the rising piece 28. Further, a rubber custard 33 is attached to the folded-back portion 29 for restricting tilting of the end portion of the windshield 32 toward the outside of the vehicle due to negative pressure during traveling.

The hollow seal portion 24 is integrally formed by extrusion molding, and comprises a belt-shaped base end portion 34 made of solid rubber, and a base end portion 34 provided on one side surface of the base end portion 34 outside the vehicle. A seal lip 36 made of sponge rubber that forms a hollow portion 35 therebetween is provided. The proximal portion 34 is
A plate-shaped base portion 37 that is fitted and fixed in the fitting holding portion 27 is provided upright on one end on the vehicle interior side, and the other end on the vehicle exterior side is engaged with the inner end surface 28a of the rising piece 28 while being in contact therewith. Pre-breaking locking portions 38a, 38b for locking the joining portion 31 are provided. Further, the hollow seal portion 24 is openable and closable with the joint portion 24a of the base end portion 34 and the base portion 37 as a fulcrum. The seal lip 36 has one end 36a on the inside of the vehicle.
Contacts the tip portion 39a of the garnish 39 to cover the entire end portion of the roof side rail 22 in cooperation with the garnish 39.

Therefore, according to this embodiment, since the retainer 23 and the hollow seal portion 24 are formed separately, they can be molded separately. Therefore, when the end portions of the hollow seal portion 24 are abutted and joined together in the mold, the outer end portions are flexibly deformed without maintaining a linear shape. No need to hold
Molding work becomes easy and the mold can be made as small as possible.

When the weather strip 21 is attached to the roof side rail 22, the retainer 2 is previously attached.
3 is bent along the opening edge of the vehicle body, the hollow seal portion 24 is bent along the retainer 23 while being adjusted, and the base portion 37 is inserted into the fitting holding portion 27 to insert both side pieces 27.
caulking a and 27b. As a result, the hollow seal portion 2
4 is securely fixed to the retainer 23. At this point, the outer end of the hollow seal portion 24 is open downward with the connecting portion 24a as a fulcrum, as shown by the chain double-dashed line in FIG.

Next, while the retainer 23 is positioned at a predetermined position on the opening edge of the vehicle body, the screw 40 is inserted into the screw insertion hole 26a through the hollow seal portion 24 and the lower opening of the retainer 23, and the screw hole of the outer panel 22b is inserted by a tool. Tighten to 22d. As a result, the retainer 23, the hollow seal portion 24, and the drip molding 30 are integrally fixed to the roof side rail 22. Then, the hollow seal portion 24
Is lifted around the connecting portion 24a as a fulcrum and rotated in the closing direction to lock the engaging portions 31 and the inner end surfaces 28a of the rising pieces 28 with the engaging portions 38a and 38b and close the opening. Installation work is completed.

As described above, since the hollow seal portion 24 can be securely fixed by crimping the fitting holding portion 27 of the retainer 23 and can be bent while adjusting its shape with respect to the retainer 23, crushing occurs. Without 3
It becomes possible to bend it dimensionally freely.

Further, since the retainer 23 and the hollow seal portion 24, which are integrated by caulking, can be attached to the vehicle body as they are on the vehicle assembly line, the attachment work is facilitated and the weather strip 2 up to the assembly line is used.
Maintenance management of 1 also becomes easy.

Further, when the hollow seal portion 24 is damaged, only the hollow seal portion 24 can be replaced, which is advantageous in terms of cost. Also, it becomes easy to recycle.

Further, the drip molding 30 is attached to the retainer 2
Since it is provided integrally with 3, the manufacturing work and mounting work efficiency thereof are improved as compared with the case where they are provided separately.

FIG. 2 shows a second embodiment of the present invention in which a retainer 23 is provided with a bent U-shaped fit-and-hold portion 27 at the vehicle outer end and a rising piece 28 at the vehicle inner end. An engaging portion 31 bent into a substantially crank shape is formed at the tip portion. On the other hand, the hollow seal portion 24 is provided with a base portion 37, which is inserted into the fitting holding portion 27 and fixed by caulking, at an outer end portion of the vehicle, and a hook-like engagement that engages with the engaging portion 31 at an inner end portion of the vehicle. The part 38 is integrally provided. Therefore, the hollow seal portion 24 is configured to open and close with the joint portion 24a between the base end portion 34 and the base portion 37 on the vehicle outer side as a fulcrum. Therefore, the same effect as that of the first embodiment can be obtained.

A plate-shaped core metal 41 is embedded in the base portion 37 so as not to restrict the free bending of the hollow seal portion 24. The core metal 41 increases the caulking force of the fitting holding portion 27. The hollow seal portion 24 can be firmly fixed by the retainer 23.

FIG. 3 shows another embodiment of the present invention. In this embodiment, the structure of the weather strip 21 arranged opposite to the front end edge of a so-called corner piece provided at the front end portion of the front door of the vehicle is modified. It is a thing.

That is, the corner piece serves as a mounting base for a door mirror or the like, and slidably holds the front end of the windshield inside the channel via the channel portion. The Custer 33 of the weather strip 21 is arranged near the portion. Therefore, the front end of the corner piece and the front end of the Custer 33 may interfere with each other when the door is closed. For this reason, conventionally, it has been devised to cut out the tips of the Custer 33 facing the front end of the corner piece to prevent mutual interference, but if the Custer 33 is cut out, the appearance will deteriorate and the appearance quality will be reduced. Cause decline.

Further, the corner piece is moved to the rear side with the windshield 32, and the corner piece is moved to the rear side.
It is also considered to avoid the interference between the corner piece and Custer 33 without notching, but this time, a gap is generated between the front end portion of the window glass 32 and the hollow seal portion 24, and a sufficient seal is obtained. You will not be able to get sex. Therefore, only a part of the hollow seal portion 24 is enlarged by molding to ensure the sealing property. But,
When a part of the hollow seal portion 24 is enlarged and formed by molding as described above, the manufacturing work becomes complicated and the cost is inevitably increased.

Therefore, in the present embodiment, as shown in the drawing, the enlarged portion 42 near the front end of the corner piece of the one side locking portion 38a of the weather strip 21 is extruded integrally with the base end 34 toward the lower end side by extrusion molding. The rubber member 43 in the fitting and holding portion 27 was formed to be gradually wider toward the lower end side similarly to the enlarged portion 42 while being gradually formed to be wider. Therefore, the corner piece does not interfere with the Custer 33 and a good sealing property is obtained, and it is not necessary to cut out the Custer 33 itself, so that the appearance quality can be improved.

Further, since the enlarged portion 42 of the locking portion 38a can be formed by extrusion molding together with the base end portion 34, and the rubber member 43 can also be formed by extrusion molding, the manufacturing work is facilitated and the cost is reduced. Soaring can be suppressed. In addition, in order to extrude the enlarged portion 42 and the rubber member 43, the opening of the die is gradually opened to be enlarged.

[0032]

As is apparent from the above description, in the weather strip for an automobile according to the present invention, the retainer and the hollow seal portion are separately formed, and one end of the hollow seal portion is caulked to the retainer. Since the fixing is performed, it is possible to facilitate the butt-joining work of the respective end portions of the hollow seal portion with a mold, and to perform free tertiary bending while maintaining the shape of the hollow seal portion. Moreover, the hollow seal portion can be securely and firmly fixed to the retainer.

Further, since the weather strip integrally formed by caulking and fixing the hollow seal portion to the retainer can be mounted on the vehicle body as it is on the vehicle assembly line, the mounting work can be facilitated and the assembly line can be obtained. It also makes maintenance easier.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part showing a second embodiment of the present invention.

FIG. 3 is a sectional view of an essential part showing another example of the present invention.

FIG. 4 is a perspective view showing a sashless door type vehicle to which a weather strip is applied.

5 shows a conventional weather strip of FIG.
FIG.

[Explanation of symbols]

 21 ... Weather Strip 22 ... Roof Side Rail (Vehicle Opening Edge) 23 ... Retainer 24 ... Hollow Seal Part 26 ... Mounting Base Part 27 ... Fitting Holding Part 31 ... Engaging Part 37 ... Base Part 38a, 38b ... Locking Part

Claims (1)

[Claims] 1. A weather strip for an automobile, comprising: a metal retainer fixed to an opening edge of a vehicle body; and a rubber hollow seal portion engaged with and retained by the retainer to seal an edge of a window glass. A retainer is provided at one end of the retainer, and an engaging portion is provided at the other end, and a base that is caulked and fixed in the retainer is provided at one end of the hollow seal portion. A weather strip for an automobile, characterized in that an engaging portion which is engageably and disengageably engaged with the engaging portion is provided at the other end.