JP2006213242A - Glass run molded part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a glass run molded part in which an extrusion forming part having a hair-transplanted seal lip is cut into a predetermined length and assembled, capable of increasing the bonding strength of the extrusion forming part and enhancing the durability by preventing impairment of the appearance by a connection line to the seal lip, and by preventing impairment of the appearance by the opening between the molded part and an end of the extrusion forming part to be connected. <P>SOLUTION: An extrusion forming part 13 with hair transplantation 9 comprises a plate-like base part 14 consisting of a hard thermoplastic elastomer or a polypropylene to be inserted in a glass run molded part 11, and a seal lip 16 consisting of a flexible thermoplastic elastomer which is protruded sidewise from an intermediate part on a window glass side of the base part 14. A root of the seal lip 16 is embedded in the molded part 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a glass run mold part 3 that connects a glass run 1 mounted around a door of an automobile door as shown in FIG. 1 and a belt line molding 2 mounted on a belt line.

  FIG. 2 shows a conventional glass run mold forming part in which part a of FIG. 1 is enlarged, and FIG. 3 shows a cross section taken along line AA in FIG. 2 of the glass run mold forming part 3 attached to the flange 6. The glass run mold forming part 3 is made of EPDM rubber, like the belt line molding 2, is provided with an insert metal 4, and is integrally formed with the attaching part 7 that is inserted into the flange 6 of the door frame 5 and attached. In addition, a seal lip 10 treated with flocking 9 is provided on the contact surface with the window glass 8.

  In such a glass run mold forming part 3, a part of the glass run extruding part is cut and set in a mold, and then EPDM rubber is injected into the cut part to form a seal lip 10. However, since the flocking process was performed in a separate process, it took time to finish and a lot of cost.

In Patent Document 1 below, a seal lip that has been extrusion-molded and flocked is cut to a certain length and the end of the extrusion-molded part is set in a mold, and then a rubber material is injected to form a molded part of a corner part. A weatherstrip formed is disclosed.
Actual Kaihei 2-2230

  In the weather strip disclosed in Patent Document 1, the seal lip extruded into the mold forming part is outsert, but the appearance of the connecting line with the seal lip appears in an easily visible spot on the upper surface, and the appearance is poor. Moreover, the seal lip occupies nearly half of the molded part in the cross section, but since it is not connected to the end of the extrusion part, it opens between the end of the extrusion part and the appearance is further impaired. In order to close the seal lip and the end of the extrusion molding part, it is time-consuming and expensive to use an adhesive or the like after molding. In addition, the molded part has a small adhesion area, and there are difficulties in adhesion strength and durability.

  An object of the present invention is to provide a glass run mold molded part that solves the above-mentioned problems without impairing the advantages of the weather strip disclosed in Patent Document 1.

  The invention according to claim 1 is a glass run mold forming part extending from the glass run toward a belt line molding attached to the belt line in an extrusion glass run attached around the door on the belt line of the automobile door. A base part of an extrusion-molded part of a certain length, preferably a plate-like base part, comprising a base part and a seal lip integrally formed protruding sideways from the base part and having a surface subjected to a lubrication treatment Is formed integrally with a mold part made of a thermoplastic resin.

  In the present invention, rubber such as EPDM, resin, thermoplastic elastomer TPE, or the like can be used as the material of the extrusion molded part incorporated in the mold molded part. It is desirable to be made of a hard material such as thermoplastic elastomer or polypropylene so that it can fulfill the alternative function of the insert metal 4 shown in FIG. 3, and the sealing lip that is elastically contacted with the window glass and sealed is, for example, soft rubber or thermoplastic It is desirable to form with a soft material such as an elastomer.

The material of the molded part can also be any of various existing materials such as rubber such as EPDM, thermoplastic elastomer, resin, etc., but preferably has compatibility with the extrusion molded part incorporated in the molded part and is adhesive. The material of which is good is used.
The connection between the mold forming part and the belt line molding may be integrally coupled, or the mold forming part may simply be slidably butted against the belt line molding end.

  The invention according to claim 2 is characterized in that, in the invention according to claim 1, the base portion is a hard thermoplastic elastomer or polypropylene.

  The invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2, the base of the seal lip is embedded in the molded part.

  According to the first aspect of the present invention, since the seal lip incorporated in the molding part is an extrusion molded product, it can be subjected to a lubrication process such as raising during extrusion molding. It is not necessary to perform in the process, the base part is inserted, and the connection line with the molded part does not appear on the surface of the molded part, the appearance is not impaired, the connection line with the seal lip is a window glass It is located on the side and is not easily noticeable. Even though the end of the extrusion molding part connected to the molding part and the base part are not bonded, at least three sides of the base part are embedded in the molding part. The adhesive strength with the molded part is large and durable, and it is difficult to open between the base part and the end of the extruded part, and the appearance is not easily lowered. Pre-base part If bets shape, smaller cross-sectional area of the base end surface in contact with the belt-line molding, between the terminal of the base portion and the extruded portion is more difficult to open.

According to the invention which concerns on Claim 2, adhesive strength becomes still larger.
According to the invention which concerns on Claim 3, the base part of an extrusion molding part comes to be able to perform the substitute function of insert metal.

Hereinafter, the glass run mold forming part of the embodiment of the present invention will be described with reference to the drawings.
In the figure, the same components as those shown in FIGS. 2 and 3 are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 4 shows the side surface of the glass run mold forming part 11 connecting the glass run 1 and the belt line molding 2 on the side of the window glass 8, and FIG. 5 shows the glass run mold forming part 13 attached to the flange 6. The mold forming part 11 is made of a thermoplastic elastomer, and is attached to the flange 6 of the door frame 5 and attached in a hooked state, and an extension of the belt line molding 2. The extrusion molding unit 13 has the same length as that of the mold molding unit 11 and is incorporated into the mold molding unit 11. The extrusion molding unit 13 has three sides excluding one side in the cross section. A base portion 14 that is inserted along the attachment portion 12 so as to be bonded to the plate and is formed of a plate made of a hard thermoplastic elastomer or polypropylene, and the base portion 14 The seal lip 16 is formed of a soft thermoplastic elastomer seal lip 16 that protrudes from the middle portion on the side of the window glass and is integrally formed. The root is embedded in the attachment portion 12.

As the extrusion molding unit 13 of the present embodiment, an extruded product that is extruded separately from the glass run 1 and the extruded belt line molding 2 is used, but as disclosed in the above-mentioned Patent Document 1, a belt is used. What cut a part of line molding 2 can also be used.
In addition, the connection of the mold forming part 11 and the belt line molding 2 in the above embodiment is integrally connected when the mold forming part 11 is formed, or the mold forming part 11 is simply butted against the end of the belt line molding 2. Connected with.

  According to the glass run mold forming part 11 of the present embodiment, the flock 15 provided on the seal lip is formed at the time of extrusion molding, and does not need to be formed in a separate process after the mold forming. The connection line with the extrusion molding part 13 does not appear in a place where it is easily attached, the appearance is not impaired, and the base part is bonded to the mounting part on the three sides of the cross section, so the adhesive strength is large and the durability is high. In addition, since the contact area with the end of the belt line molding 2 that has been extrusion-molded is small, there is an effect that a problem such that the gap between the end of the belt line molding 2 and the appearance is damaged is less likely to occur.

  The glass run mold forming part 21 shown in FIG. 6 is different from the glass run mold forming part 11 shown in FIGS. 4 and 5 in that the entire base part 14 of the extrusion forming part 13 is embedded in the mounting part 12.

  According to the glass run mold forming part of the present embodiment, the adhesive strength between the base part 14 and the attachment part 12 is further increased.

  The glass run mold forming part of the present invention is used to connect a glass run of an automobile door and a belt line molding.

The figure which shows the glass run and belt line molding with which the periphery of the door of a motor vehicle door is mounted | worn. The enlarged front view of the a part of FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. The front view of the glass run mold forming part which concerns on this invention. BB sectional drawing of FIG. The front view which shows another aspect of a glass run mold forming part.

Explanation of symbols

1 ・ ・ Glass run 2 ・ ・ Belt line moldings 3, 11, 21 ・ ・ Glass run molded part 4 ・ ・ Insert metal 5 ・ ・ Door frame 6 ・ ・ Flange 7 and 12 ・ ・ Mounting part 8 ・ ・ Window glass 9 ・ ・Flocking 10 ・ ・ Seal lip 13 ・ ・ Extrusion molding part 14 ・ ・ Base part 16 ・ ・ Seal lip

Claims (3)

  Glass run mold forming portions 11 and 21 extending from the glass run 1 toward the belt line molding 2 attached to the belt line on the extrusion glass run 1 attached around the door on the belt line of the automobile door. The base portion 14 and the base portion 14 of the extrusion-molded portion 13 having a fixed length made of a seal lip 10 that is formed integrally with the base portion 14 so as to protrude laterally from the base portion 14 are made of thermoplastic resin. The glass run mold forming part, wherein the glass run mold forming part is integrally formed with the mold forming parts 11 and 21.   The glass run mold part according to claim 1, wherein the base part (14) is a hard thermoplastic elastomer or polypropylene.   The glass run mold part according to claim 1 or 2, wherein the base of the seal lip (16) is embedded in the mold part (11, 21).

Images