JP4282876B2 - Weather strip for automobile - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a weather strip that is attached to a vehicle body opening edge of an automobile door, back door, trunk or the like (hereinafter simply referred to as “door etc.”).
[0002]
[Prior art]
This type of weatherstrip is attached by inserting it into a flange at the opening edge of the vehicle body, and is attached to a trim-like solid rubber mounting part having a substantially U-shaped cross section, and when it is closed, it is elastically contacted to a panel such as a door. It consists of a hollow seal made of sponge rubber that seals the gap between the panels, and a metal core with a substantially U-shaped cross section is inserted in the mounting part to increase the holding force, and the inside is a claw piece The flange is sandwiched and held so that the core metal is omitted and the leg portion of the mounting portion is bonded to the flange with a double-sided adhesive tape. That is, one leg portion of the mounting portion to which the double-sided pressure-sensitive adhesive tape is bonded is opened and separated from the flange, and then the release paper of the double-sided pressure-sensitive adhesive tape is peeled off, and then the leg portion is pressed against the flange to be bonded.
[0003]
[Problems to be solved by the invention]
When attaching the mounting part to the flange of the body opening edge using double-sided adhesive tape, the weatherstrip can be reduced in weight because there is no core metal, and when holding and holding the flange with only the nail piece, the thickness and size of the nail piece When it is thin and weak, the holding power is weakened. On the other hand, when double-sided adhesive tape is used, the holding power can be given enough, and it can be used as a measure for preventing squeezed water. However, considering the ease of assembling the weather strip to the flange, it is preferable that the release paper is peeled off from the double-sided pressure-sensitive adhesive tape after being temporarily fixed by being inserted into the flange.
[0004]
The present invention has been made in view of such a point, and a first object is to provide a weather strip that can be bonded to a flange of a vehicle body opening edge and temporarily fixed thereto. The second object is to provide a weather strip that allows the temporary fixing to be applied to a flange having a step or unevenness regardless of the thickness of the flange.
[0005]
A third object of the present invention is to provide a weather strip that can reliably adhere with a closing force when a door or the like is closed in the weather strip that achieves the first or second object.
[0006]
[Means for solving problems]
Invention according to claim 1, relates to a weather strip to achieve the first and second objects, as shown in FIGS. 1 and 2, the opposing legs 1a, have 1b, legs 1a, 1b The flange 2 at the opening edge of the vehicle body is inserted between the trim-shaped solid rubber mounting portion 1 having a substantially U-shaped cross section, and when the door is closed, the panel 3 is elastically contacted with the panel 3 such as the door. It is composed of a hollow seal portion 4 made of sponge rubber that seals the gap between them, and the mounting surface 1c on the leg portion 1a side of the mounting portion 1 and the mounting surface 2a on the flange 2 side are bonded by a double-sided adhesive tape 5 . In the weather strip, the weather strip includes holding means 6 and 8 which are partly or entirely made of sponge means having a high elasticity inside the legs 1a and 1b and elastically contact the flange 2. Plug in It is attached to the opening edge of the vehicle body by a double-sided pressure-sensitive adhesive tape 5 bonded to the attachment surfaces 1c, 2a on the leg 1a side or the flange 2 side crossing the direction .
[0007]
According to the present invention, as shown in FIG. 1, the mounting portion 1 is inserted into the flange 2, the holding means 6 and 8 are brought into elastic contact with the flange 2, and temporarily fixed, and the double-sided adhesive tape 5 is mounted on the flange 2 side . The release paper 7 of the double-sided adhesive tape 5 is peeled off in a state where it floats away from the surface 2a or the mounting surface 1c on the leg 1a side , and then the mounting portion 1 is temporarily fixed to the flange 2 while being pushed in the direction of the arrow. or a double-sided adhesive tape 5 attached to the attachment surface 1c of the 1a side is pressed against the mounting surface 2a of the flange 2 side, or the attachment of the attachment surface 1c of the leg portion 1a side to the mounting surface 2a of the flange 2 side double-sided adhesive tape Press to 5 and bond. FIG. 2 shows the weatherstrip thus bonded.
[0008]
As the above-mentioned holding means used in the present invention, for example, a claw piece protruding from the mounting portion, sponge rubber or the like is exemplified.
[0009]
In the present invention, the double-sided pressure-sensitive adhesive tape can be attached to the leg side or the flange side, but it is desirable to attach it to the leg side in consideration of assembly.
[0010]
Moreover, as shown in FIG.1 and FIG.2, the attachment surface 1c on the attachment part 1 side to which the double-sided adhesive tape 5 is adhere | attached, and the attachment surface 2a on the flange 2 side are respectively insertion of the attachment part 1 shown by the arrow of FIG. Although the angle α formed with the direction may be an acute angle, the double-sided adhesive tape 5 bonded to the leg 1a side is pressed against the mounting surface 2a on the flange 2 side , or the mounting surface 1c on the leg 1a side is pressed to the flange 2 Preferably, it is formed at a right angle or an obtuse angle as shown in the figure so that it can be easily and surely bonded to the double-sided pressure-sensitive adhesive tape 5 bonded to the side .
[0011]
The present invention is also characterized in that a part or all of the holding means is a sponge means that is elastically rich.
Further, the invention according to claim 2 is characterized in that the holding means constituted by the sponge means in the invention according to claim 1 is set over a length of at least half of one side of the leg portion and is substantially rectangular. And
[0012]
If the holding means is a claw piece, the thickness of the flange will be thin, or the holding force will be weak because the claw piece will not hit the lower part or recess of the stepped flange, and if the flange thickness is thick When the mounting portion is inserted into the flange, the leg portion may expand. However, if a part or all of the holding means is made of elastic sponge means as in the present invention, flanges with different thicknesses may be used. The mounting portion can be inserted and temporarily fixed to the flange having unevenness or a step without opening the leg portion.
[0013]
The invention according to claim 3 is the invention according to claim 1 or 2, characterized in that the sponge means is a sponge material having an apparent specific gravity of about 0.1 to 0.3.
The elastic sponge means used in the present invention may be a sponge rubber similar to the seal part, but preferably a sponge rubber having an apparent specific gravity smaller than that of the seal part, for example, a sponge rubber of the seal part. When the apparent specific gravity is 0.4 to 0.6, a highly foamed sponge rubber having an apparent specific gravity of 0.1 to 0.3 is used.
[0014]
The invention according to claim 4 relates to a weatherstrip that achieves the third object. The weatherstrip according to any one of claims 1 to 3 has a door or the like as shown in FIGS. A weatherstrip that is opened and closed by moving in the direction of the arrow in FIG. 2 toward the front end, and that is attached to the opening edge of a vehicle body such as a back door or trunk, in which a hollow seal portion 4 is formed on the front end of the flange. Yes, with the mounting portion 1 inserted into the flange 2, the distance between the mounting surface 1c on the leg 1a side and the mounting surface 2a on the flange 2 side becomes narrower toward the tip of the mounting surface of the leg 1a. In addition, the angle θ formed by the mounting surfaces 1c and 2a is an acute angle.
[0015]
When the weather strip of each of the inventions is a weather strip attached to the opening edge of a vehicle body such as a back door and a trunk, the double-sided adhesive tape is applied by a closing reaction force acting on a sealing portion by a panel of the door when the door is closed. However, when the panel such as a door is closed, the distance between the two mounting surfaces 1c and 2a becomes narrower as the distance from the reaction line of the reaction force of the seal portion 4 indicated by the arrow in FIG. For this reason, it is possible to bond with a sufficient pressing force even at a position away from the action line.
[0016]
Invention, wherein in the invention according to any one of claims 1 to 4, the leg portion formed of the mounting surface forms a wide toward the said mounting surface is formed in a substantially triangular according to claim 5 And
[0017]
According to the present invention, since the leg portion formed of the mounting surface is to have a relatively rigid, when closing the door or the like, the mounting surface is not bent by the reaction force of the closing force acting on the seal portion, the double-sided pressure-sensitive adhesive The entire tape is pressed against the mounting surface on the flange side , so that the bonding is surely performed.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 3 shows an embodiment of a weather strip attached to the opening edge of a vehicle body such as a back door and a trunk. In FIG. 3, parts denoted by the same reference numerals as those in FIGS. 1 and 2 indicate the same structure. .
[0019]
The leg part 1a of the attachment part 1 is formed in a hollow shape with a substantially triangular cross section, and a double-sided adhesive tape 15 as an adhesive means is attached to the attachment surface 1c on the leg part 1a side .
[0020]
The high foamed sponge rubber 16 which is a holding means and is also a sponge means protruding inside the leg portion 1a has an apparent specific gravity lower than an apparent specific gravity of 0.4 to 0.6 used for the seal portion 4. About 0.1 to 0.3. In the illustrated example, the sponge rubber 16 is provided on the leg 1a. However, the sponge rubber 16 may be provided on the leg 1b or on both sides of the legs 1a and 1b.
[0021]
Further, a high foamed sponge rubber 11 made of the same material as the sponge rubber 16 is attached to the inner end between the legs 1a and 1b in the attachment portion 1, and when the weather strip is attached, the tip of the flange 2 bites into the sponge rubber 11 It prevents dripping water and prevents rust at the flange tip. In the figure, 8 is a claw piece protruding from the inside of the leg 1b.
[0022]
【The invention's effect】
According to the weather strip of the invention according to claims 1 to 3 , the attachment portion can be temporarily fixed by inserting it into the flange, and after the release paper is peeled off from the double-sided adhesive tape in the temporarily fixed state, it is bonded by pressing. be able to.
[0023]
Further , according to the weather strip of the invention according to claims 1 to 3 , the attachment portion is inserted into the flange having different thicknesses and also to the flange having unevenness or step without expanding the leg portion. Can be temporarily fixed.
[0024]
According to the weather strip of the invention according to claim 4 , the double-sided pressure-sensitive adhesive tape can be pressed against the mounting surface with the reaction force of the closing force acting on the seal portion when the back door, the trunk or the like is closed, and the bonding can be reliably performed. .
[0025]
In the weather strip of the invention according to claim 5, when the back door, the trunk, etc. are closed due to the rigidity of the leg portion, the mounting surface is difficult to bend, and the entire double-sided adhesive tape is on the leg side or the flange side . By being pressed against the mounting surface, adhesion can be performed more reliably.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a weather strip temporarily fixed.
FIG. 2 is a cross-sectional view showing a weatherstrip installation state.
FIG. 3 is a cross-sectional view showing an embodiment of a weather strip.
[Explanation of symbols]
1. ・ Mounting part 1a, 1b ・ ・ Leg part 1c, 2a ・ ・ Mounting surface 2 ・ ・ Flange 3 ・ ・ Panel 4 ・ ・ Seal part 5 ・ ・Double-sided adhesive tape 6 ・ ・ Retaining means 7 ・ Release paper 8 ・・ Nail pieces 11, 16 ・ ・ Highly foamed sponge rubber 15 ・ ・ Double-sided adhesive tape

Claims (5)

A trim-shaped solid rubber mounting portion 1 having a substantially U-shaped cross section, which has opposing leg portions 1a, 1b, and between which the flange 2 at the opening edge of the vehicle body is inserted between both leg portions 1a, 1b, and the door are closed. And comprises a hollow sealing portion 4 made of sponge rubber that elastically contacts the panel 3 such as a door and seals the gap between the panel 3 and the mounting surface 1c on the leg 1a side of the mounting portion 1 and the flange 2 In an automotive weather strip in which the side mounting surface 2a is bonded by a double-sided adhesive tape 5 ,
The weather strip has holding means 6 and 8 which are partly or entirely made of sponge means having a high elasticity inside the legs 1a and 1b and elastically contact the flange 2, and the direction in which the flange 2 is inserted. A weather strip for automobiles, which is attached to the opening edge of the vehicle body by a double-sided adhesive tape 5 bonded to the mounting surfaces 1c and 2a on the legs 1a or flanges 2 which intersect . 2. The weather strip for an automobile according to claim 1, wherein the holding means constituted by the sponge means is set over a length of at least half of one side surface of the leg portion and has a substantially rectangular shape. 3. The weather strip for automobiles according to claim 1, wherein the sponge means is a sponge material having an apparent specific gravity of about 0.1 to 0.3. A weatherstrip that is attached to a vehicle door opening edge of a back door, a trunk, etc., which is opened and closed by moving a door or the like toward the flange tip, and a hollow seal portion 4 is formed on the attachment portion on the flange tip side; the mounting portion 1 is inserted or pressed in to the flange 2, narrows toward the attachment surface 1c tip spacing of the legs 1a side between the mounting surface 2a of the mounting surface 1c and the flange 2 side of the leg portion 1a side The weather strip for an automobile according to any one of claims 1 to 3, wherein an angle θ formed by both mounting surfaces 1c and 2a is an acute angle. Wide weather strip for an automobile according to any one of claims 1 to 4, characterized in that it is formed in a substantially triangular as legs 1a formed in the mounting surface 1c is directed to the mounting surface 1c.

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