JPH0752729A - End structure of welt seal for automobile - Google Patents

Abstract

PURPOSE:To provide an end structure of a welt seal where a seal part can be easily pushed into a kicking plate, and the edge part of a garnish can be covered at all times irrespective of variation of the length of the end part of the welt seal to be pushed into the kicking plate. CONSTITUTION:In an end structure of a well seal 1 to be mounted by pushing a seal part 3 at the end part of loop-shaped section into a welt part 2 into a kicking plate 240, a slit 4 reaching from the pushing end into the kicking plate 240 to the outside of the kicking plate 240 is provided in a covered part for the garnish of the seal part 3. This constitution forms an overlapped and adhered part 3d where covered part pieces 3b, 3c divided by the slit 4 in the vicinity of the pushing end are overlapped and adhered to each other, and also forms a cut part 3e where other slit parts 4 are left as they are and made continuous to the overlapped and adhered part 3d.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal structure of an automobile welt seal for closing a gap between a vehicle body and a door.

[0002]

2. Description of the Related Art Welt seals 100 for automobiles of this type
Is mounted along the peripheral edge portions of door openings 201 and 202 for mounting the door of the automobile 200 as shown in FIG.

That is, an automobile welt seal 100
Is composed of a welt portion 101 and a seal portion 102 having a loop-shaped cross section attached along the length direction of the welt portion 101.
The outer member and the inner member forming 202 are fitted and attached to the mating portion. For example, as shown in FIG. 6 to FIG.
For 03, the welt part 101 is fitted to the mating part 206 between the outer pillar 204 and the inner pillar 205, and for the side sill 210 where the lower end of the center pillar 203 is continuous, to the mating part 213 between the outer sill 211 and the inner sill 212. Installed.

On the other hand, as shown in FIG. 7, the seal portion 102 is made of an elastic elongated body having a garnish concealing portion 102a (marked by X in the figure) and having a loop-shaped cross section. In the fitted state, the garnish concealing portion 102a comes into contact with the end edge portion 220b of the garnish 220 attached to the vehicle interior side of the center pillar 203 to conceal the end edge portion 220b from being exposed to the outside. , The door 230 when the door 230 is closed
Of the door opening 201 and the door 23
It is designed to close the 0 gap. At this time, the lower end 220a of the garnish 220 is the center pillar 203.
Is attached so as to cover a part of the side sill 210 continuous to the lower end side portion of the (see FIG. 8).

As shown in FIG. 8, the seal portion 102 at the end of the welt seal 100, which is attached to the side sill 210, covers the side sill 210 and the lower end portion 220a of the garnish 220. It is pushed in a crushed state within 240.

[0006]

However, in the conventional welt seal 100, since the seal portion 102 has the garnish concealing portion 102a and is formed in a loop shape, the seal portion 102 at the end portion thereof is kicked plate 240. The work of pushing it inside was troublesome, and this led to a drop in productivity.

That is, since the welt seal 100 has the garnish concealing portion 102a in the seal portion 102, if the kicking plate 240 is simply mounted so that it can be covered from above, the garnish as shown in FIG. Since a part of the formation portion of the concealing portion 102a for bending is bent on the lower end side portion 220a of the garnish 220 and is located between the kicking plate 240 and the lower end side portion 220a of the garnish 220, the kicking plate 24
In 0, the outer side floats up and cannot be attached. Therefore, when the kicking plate 240 is attached, it is necessary to prevent the bending of the garnish concealing portion 102a described above and push the seal portion 102 into the kicking plate 240, which is a troublesome work, which leads to a productivity increase. Was in decline.

Therefore, in order to make it easier to insert the seal portion 102 at the end portion of the welt seal 100 into the kicking plate 240, as shown in FIG. 10, the loop portion is pressure-molded to form the pressure-bonded portion 102b. Alternatively, as shown in FIG. 11, a cut along the length direction is made in the garnish concealing part 102a of the seal part 102 that enters the kicking plate 240, and the concealing part pieces 102c and 102d divided by this cut are superposed. Attempts have been made to form a bonded portion 102e that is adhered by the above method.

However, when the welt seal 100 is attached to the door opening 201, the welt seal 100 is attached.
Due to variations in the length of itself, the length of the peripheral portion of the door opening 201, and the fitting depth of the welt portion 101 during mounting, the end portion of the welt seal 100 pushed into the kicking plate 240 is There is a possibility that the lengths may vary, and the above-described pressure-bonding portion 102b or adhesive portion 102e may stick out of the kicking plate 240. When the pressure-bonding portion 102b or the adhesive portion 102e bulges out in this way, the edge portion 220b of the garnish 220 in the portion bulged out as shown in FIG. 12 is not hidden by the garnish concealing portion 102a. There is a problem that it is exposed and can be seen from the outside when the door is opened.

In addition, in the case where the crimping portion 102b is formed, a die for crimping is required, resulting in a high cost, and a new problem due to burrs generated in the crimping portion 102b, color difference from the general portion, and the like. Dots occur.

In any case, in the case where the pressure-bonded portion 102b or the adhesive portion 102e is formed, there is the above-mentioned problem and there is a difficulty in carrying out the same.

The present invention has been made in view of the above circumstances, and an object thereof is to easily push the seal portion into the kicking plate and to lengthen the end portion of the welt seal pushed into the kicking plate. An object of the present invention is to provide a terminal structure of a welt seal capable of always concealing the edge portion of the garnish regardless of variations in size.

[0013]

According to the present invention, in order to achieve the above-mentioned object, a welt seal is made of a flexible elongated body having a substantially U-shaped cross section and is attached to one side wall of the welt portion. A seal portion formed of an elastic elongated body having a garnish concealing portion and having a loop-shaped cross section, the welt portion being an outer member that constitutes a door opening portion for mounting a door of a vehicle body. A seal at the end portion of the welt seal, which is fitted to the mating portion with the inner member, and which conceals the garnish concealing portion along with the end edge portion of the garnish attached to the door opening, and conceals the edge portion. In a terminal structure of an automobile welt seal, which is mounted by pushing a portion into a kicking plate attached to the door opening, a garnish of a seal portion at the welt seal end portion In the concealing part, a cut reaching from the pushing end into the kicking plate to the outside of the kicking plate is made, and the concealing part pieces divided by the cut in the vicinity of the pushing end are polymerized and bonded to each other. Is formed, and other cut portions are left as they are to form a cut portion continuous with the above-mentioned polymerized adhesive portion.

[0014]

Since the present invention has the above-described structure, the seal portion at the end of the welt seal has the overlapping portion of the concealing portion and the cut portion in which the cut is left as it is in the longitudinal direction. Are formed continuously along the. Since the above-mentioned polymerized adhesive portion is made by superimposing and concealing the concealing portion pieces divided by the cut, it is made smaller (or crushed) than the seal portion of the general portion in the free state, and It is located on the side, making it easy to push it into the kicking plate.

Further, the cut portion which is continuous with the polymerized adhesive portion has a restoring force for returning to a free state because the cut is left without being adhered, and the direction in which the polymerized adhesive portion shrinks ( Or the direction of collapse) is bent to bend. Therefore, the cut portion of the seal portion is easily reduced (or crushed) to the side portion of the welt portion by the load of external force. Therefore, the cut portion is also easily pushed into the kicking plate, and the cut portion protruding outward from the kicking plate bulges due to the restoring force to conceal the edge portion of the garnish. Acts like.

[0016]

The present invention will be described in detail below with reference to the illustrated embodiments.

FIG. 1 shows a mounted state of an automobile welt seal 1 as one embodiment. The welt seal 1 is mounted over the entire circumference of the peripheral edge of the door opening 201 of the automobile 200 as in the conventional case, and closes the gap between the door in the closed state and the door opening 201. It is functioning. At this time, both end portions 10 and 11 of the welt seal 1 are attached to the kicking plate 240 attached to the door opening 201.
It is installed so that it is pushed inside.

That is, as shown in FIGS. 2 to 4, the welt seal 1 comprises a welt portion 2 which is a flexible elongated body having a U-shaped cross section and integrally formed with a mounting fin 2a on the inner surface thereof. A seal portion 3 which is attached to one side wall of the welt portion 2 and which is formed of an elastic elongated body such as rubber and has a loop-shaped cross section.
The welt portion 2 is attached by being fitted to the mating portion of the outer member and the inner member forming the door opening 201. For example, in the welt seal 1, for the center pillar 203, for the mating portion 206 of the outer pillar 204 and the inner pillar 205, and for the side sill 210 where the lower end of the center pillar 203 is continuous,
A mating portion 2 of the outer sill 211 and the inner sill 212
The welt portion 2 is fitted and attached to the reference numeral 13.

On the other hand, the seal portion 3 is formed with a garnish concealing portion 3a (indicated by a cross in the figure) as shown in FIG. 3, and when the welt portion 2 is fitted, the seal portion 3 is for garnish. The concealing portion 3a is the center pillar 203.
Edge 220 of the garnish 220 attached to the passenger compartment of the vehicle
When the door 230 is closed, the end edge 220b is hidden so as not to be exposed to the outside.
And the gap of the door 230 is closed. At this time, the lower end 220a of the garnish 220 is attached so as to cover a part of the side sill 210 continuous with the lower end of the center pillar 203 (see FIG. 4).

At the end of the welt seal 1, the welt 2 at the end fits into the mating portion 213 of the outer sill 211 and the inner sill 212 of the side sill 210 covered by the lower end 220a of the garnish 220, and The seal part 3 at the terminal part is the garnish 2
It is attached so as to be pushed into a kicking plate 240 which is attached from above the lower end portion 220a of 20.

At this time, the seal portion 3 at the end portion of the welt seal 1 reaches the outside of the kicking plate 240 from the pushing end into the kicking plate 240 in the garnish concealing portion 3a, as shown in FIG. Make a cut 4 and cut the portion near the indented end
The concealment pieces 3b and 3c divided by are polymerized and bonded to form a bonded portion 3d, and the other cut 4 is formed as a cut portion 3e in which the cut 4 is left as it is.

The cut 4 is formed along the length direction of the seal portion 3 at a substantially central portion of the formation width of the garnish concealing portion 3a. In addition, the superposed adhesive portion 3d is superposed and adhered to the inner root portion of the one concealing piece 3b which is divided by the cut 4 and remains on the side of the welt portion 2 on the outer side of the edge of the other concealing piece 3c. Even if the length of the superposed adhesive portion 3d formed from the end varies depending on the length of the end portion that is mounted in the kicking plate 240 of the welt seal 1, the superposed adhesive portion 3d is always the kicking plate. It is designed and designed to be located within 240.

The seal portion 3 at the end portion of the welt seal 1 thus formed is located at the side portion of the welt portion 2 with the overlapped adhesive portion 3d being smaller (or crushed) than the general portion. And kicking plate 240
It is easy to push it in. This polymerization adhesive part 3
Since the cut portion 3e continuous to d has the cut 4 left as it is without being adhered, the concealing portion piece 3c has a restoring force to return to the free state, and the overlap portion 3c causes the welt portion 2 to be restored. It is bent so that it bends to the side and shrinks (or collapses). For this reason, the concealing piece 3c in the cut portion 3e is easily reduced (or crushed) to the side of the welt portion 2 by an external force load, and bulges due to its restoring force in the unloaded state to substantially expand. Be free.

Therefore, in the seal portion 3 at the end portion of the welt seal 1, the cut portion 3e as well as the overlapped and adhered portion 3d can be easily pushed into the kicking plate 240, and the kicking plate 240 can be easily pushed. 24
The concealment piece 3c in the cut portion 3e protruding outward from 0 bulges due to the restoring force and maintains a substantially free state, as shown in FIG.
As shown in FIG. 3, the garnish 220 is in contact with the edge 220b at the lower end 220a of the garnish 220 to conceal it.

Thus, in the welt seal 1,
Kicking plate 2 of seal portion 3 at the end portion
Since it is easy to push the welt seal 1 into the door 40, the work of attaching the welt seal 1 to the door opening 201 is facilitated and the productivity can be improved.

Further, the welt seal 1 has a concealing portion piece 3c of the cut portion 3e protruding to the outside of the kicking plate 240 despite the variation in the length of the seal portion 3 pushed into the kicking plate 240. As a result, the end edge portion 220b at the lower end portion 220a of the garnish 220 is hidden without being exposed, so that a good wearing state can be obtained.

[0027]

As described above in detail, according to the present invention, the seal portion made of the elastic elongated body having the loop-shaped cross section is attached to the welt portion made of the flexible elongated body having the substantially U-shaped cross section. That is, in the terminal structure of the automobile welt seal that is fitted into the door opening of the automobile through the welt portion, and is attached by pushing the seal portion at the terminal portion into the kicking plate attached to the door opening, The garnish concealing portion of the seal portion at the end portion of the welt seal has a cut reaching from the pushing end into the kicking plate to the outside of the kicking plate, and is divided by the cut near the pushing end. The concealing part is polymerized to form a polymerized adhesive part that is adhered to each other, and the other cuts are left as they are to be continuous with the polymerized adhesive part. Since the welded portion is formed, the polymerized adhesive portion is located at the side of the welt portion, being smaller (or crushed) than the general portion of the seal portion, and the cut portion is welded by the polymerized adhesive portion. It is bent so that it bends and shrinks (or is crushed) on the side of the part, which makes it easier to push the seal part at the end part into the kicking plate and improve productivity. Also, the concealment part in the cut part has a restoring force to return to the free state, and it protrudes to the outside of the kicking plate despite the variation in the pushing length of the seal part into the kicking plate. A concealing piece of a cut portion bulges due to the restoring force to conceal the edge portion of the garnish, and the edge portion of the garnish is not exposed. Can provide a terminal structure.

[Brief description of drawings]

FIG. 1 is a schematic diagram illustrating a mounted state of an automobile welt seal according to an embodiment.

FIG. 2 is an actual phase perspective view of a portion A of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is an exploded perspective view illustrating a mounted state of a terminal portion of the welt seal of FIG.

FIG. 5 is a schematic view of an automobile equipped with a conventional automobile welt seal.

FIG. 6 is a perspective view of a B part in FIG.

7 is a sectional view taken along line VII-VII in FIG.

8 is a sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is a sectional view of an essential part showing another conventional example.

FIG. 10 is a sectional view of an essential part showing another conventional example.

FIG. 11 is an exploded perspective view illustrating a mounted state of a terminal portion of another conventional welt seal.

FIG. 12 is a perspective view of a B part in FIG. 5 of another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Welt seal for automobiles (welt seal) 2 Welt part 3 Seal part 4 Cut line 3a Concealment part for garnish 3b, 3c Concealment part piece 3d Polymerization adhesion part 3e Cut part 201 Door opening 203 Center pillar 204 Outer pillar (outer member) 205 Inner pillar (inner member) 210 Side sill 211 Outer sill (Outer member) 212 Inner sill (inner member) 220 Garnish 240 Kicking plate 220b Edge of garnish

Claims (1)

[Claims] 1. A welt seal is attached to one side wall of a flexible elongate body having a substantially U-shaped cross section and one side wall of the welt part, and has a garnish concealing portion and is formed into a loop-shaped cross section. A seal portion formed of an elastic elongated body, and the welt portion is fitted to a mating portion of an outer member and an inner member forming a door opening portion for mounting a door of a vehicle body, and the garnish concealing portion. Is attached to the edge of the garnish attached to the door opening to conceal the edge, and the seal portion at the end of the welt seal is pushed into the kicking plate attached to the door opening for attachment. In the end structure of the automobile welt seal, the garnish concealing part of the seal part at the end part of the welt seal is inserted from the pushing end into the kicking plate. While making a cut reaching the outside of the locking plate, the concealing part pieces divided by the cut in the vicinity of the pushing end are polymerized to form a polymerized bonded portion, and other cut portions are left as they are. A terminal structure of an automobile welt seal characterized in that a continuous cut portion is formed on the polymerized adhesive portion.