JPH0649226U - Automotive weather strip - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a weather strip for automobiles, which does not show steps, lines, color difference and gloss difference on the surface and has good sealing property and appearance. This vehicle weather strip has a hollow portion 3 between a base portion 1 mounted on the opening peripheral portion of a body facing a door or a door sash portion and a base portion 1 provided on the base portion 1. It has a seal part 2. The seal part 2 is integrally molded by a mold, and the base part 1 and the seal part 2 are bonded by vulcanization or an adhesive. The weather strip seals a peripheral edge including a corner between the door glass and the body or between the door sash portion and the body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a weather strip for an automobile, which is attached to an opening peripheral portion of a body facing a door in an automobile or a door sash portion and seals between a door glass and a body or between a door sash portion and a body.

[0002]

[Prior art]

 For example, as a weather strip for a sashless door in an automobile, as shown in FIG. 6, a weather strip 30 that seals between a door glass and a body is conventionally used by being attached to a peripheral edge of an opening of a body facing a door. (See Japanese Utility Model Publication No. 62-125559, etc.).

Since this weather strip 30 is arranged along the peripheral edge of the opening of the body facing the door, it has two corners 31. For this reason, it cannot be constructed only from the extruded long linear weather strip, and the corner portions 31 are separately molded, and the extruded long linear portions and the molded corner portions 31 are formed. The weather strip 30 was formed by vulcanization bonding by simultaneous molding or bonding with an adhesive.

[0004]

[Problems to be solved by the device]

 Therefore, since this type of weather strip is formed by bonding a long straight-line extruded part and a molded corner by vulcanization bonding or an adhesive, the boundary between the straight part and the corner. There is a problem that the appearance of the weather strip is deteriorated because steps and lines are formed in the part, the sealing property is hindered, and the difference in color and gloss between the surfaces of the straight part and the corner part occurs.

Further, it has been considered to mold the entire weather strip in order to eliminate lines, steps, color difference and gloss difference, but it is necessary to form a hollow portion inside the seal portion, which is complicated. There was a problem that it became very difficult to mold the mold because a middle mold with a different shape and structure was used.

The present invention has been made to solve the above-mentioned problems, and provides a weather strip for an automobile having good sealing properties and appearance without causing steps, lines, color differences and gloss differences on the surface. The purpose is to do.

[0007]

[Means for Solving the Problems]

 For this reason, the automotive weather strip of the present invention has a hollow portion between a base portion attached to an opening peripheral portion of a body facing a door of an automobile or a door sash portion and a base portion provided on the base portion. In a weather strip for an automobile for sealing a peripheral edge including a corner portion between a door glass and a body or between a door sash portion and a body, the seal portion is integrally formed by a mold, and the base portion is formed. And the seal portion are bonded by vulcanization bonding or an adhesive.

[0008]

[Operation effect]

 In this way, since the seal portion is integrally formed by the mold, steps, lines, color difference and gloss difference do not appear on the surface of the seal portion, and it is possible to obtain a weather strip having good sealability and appearance.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a weather strip attached to an opening peripheral portion of a body facing a left front door of an automobile.

This weather strip is formed into a rectangular frame shape including two corner portions and three straight portions, and is a base formed of solid rubber (for example, solid EPDM) as shown in the enlarged cross section of FIG. It is formed from the part 1 and the seal part 2 formed of sponge rubber (for example, sponge EPDM). Further, a hollow portion 3 is formed inside the seal portion 2, that is, between the base portion 1 and the seal portion 2.

At the time of manufacturing the weather strip, the base portion 1 is separately molded in advance by molding or extrusion molding. The seal portion 2 is integrally molded by a predetermined molding die.

In this case, the base portion 1 can be integrally molded, but as shown in FIG. 3, when the weather strip is viewed from the back side, the base portion 1 is formed by the linear portions 1a, 1b, 1c. In this case, if it is formed by extrusion molding and a plurality of portions such as the corners 1d and 1e and the end portions 1f and 1g are engaged by molding, molding can be performed more easily and inexpensively. .

When the seal part 2 is integrally molded by using the preformed base part 1 as an insert, the divided base part 1 is put into a cavity of a predetermined molding die, and the rubber material of the seal part is put into the cavity. Then, it is molded and vulcanized. In this case, in order to remove the core for forming the hollow portion 3, only one end of the seal portion 2 is joined to the base portion 1, and the straight portions 1a, 1b, 1c and the corner portions of the base portion 1 are also joined. The connection points of 1d and 1e and the terminal portions 1f and 1g are vulcanized and adhered by the rubber material of the seal portion 2. Then, after removing the core, the other end of the seal portion 2 is adhered with an adhesive to form the weather strip of this embodiment.

Each of the divided pieces of the base portion 1 and the base portion 1 and the seal portion 2 are vulcanized and adhered as described above, and separately, the seal portion 2 and the base portion 1 are separately formed by an adhesive agent. It can also be glued using.

As described above, in the weather strip formed as described above, since the seal portion 2 is integrally formed by the mold, steps, lines, color difference and gloss difference do not appear on the surface of the seal portion 2, It will have good sealability and appearance.

4 and 5 show sectional views of weather strips according to another embodiment. As shown in these figures, the boundaries between the seal portions 2a and 2b and the base portions 1a and 1b can be determined at any positions.

The weather strip of the above embodiment is attached to the retainer portion provided at the peripheral edge of the opening of the body facing the door, but the present invention is also applicable to the weather strip attached to the door sash portion. Can be applied.

[0019]

[Effect of device]

 As described above, according to the automotive weather strip of the present invention, the base portion attached to the opening peripheral portion of the body facing the door of the automobile or the door sash portion, and the base portion provided on the base portion. In a weather strip for an automobile, which comprises a seal portion having a hollow portion between them and seals a peripheral edge including a corner between a door glass and a body or between a door sash portion and a body, the seal portion is integrally formed by a mold. Now, since the base portion and the seal portion are configured to be bonded by vulcanization or adhesive, the seal portion is integrally molded by the mold, so that the surface of the seal portion has a conventional step or line, No color difference or gloss difference appears, and good sealability and appearance can be secured.

[Brief description of drawings]

FIG. 1 is a front view of a weather strip for an automobile.

FIG. 2 is an enlarged sectional view taken along line II-II of FIG.

FIG. 3 is a rear view of the base portion of the weather strip.

FIG. 4 is a sectional view of a weather strip according to another embodiment.

FIG. 5 is a sectional view of a weather strip according to another embodiment.

FIG. 6 is a perspective view showing a conventional automotive weather strip.

[Explanation of symbols]

 1-base part, 2-seal part, 3-hollow part.

Claims (1)

[Scope of utility model registration request] 1. A base portion attached to an opening peripheral portion of a body facing a door of an automobile or a door sash portion, and a seal portion provided on the base portion and having a hollow portion between the base portion and the seal portion. In a weather strip for an automobile that seals a peripheral edge including a corner portion between the door glass and the body or between the door sash portion and the body, the seal portion is integrally molded by a mold, and the base portion and the seal portion are A weather strip for an automobile, characterized by being bonded by vulcanization or an adhesive.