JPH04260814A - Door glass run for automobile - Google Patents

Abstract

PURPOSE:To reduce the number of extruded bodies and the manday in die connection, and improve the design property around a door mirror bracket for an automobile door glass run comprising a plural extruded bodies connected with each other by a die. CONSTITUTION:Abutting end parts of a first extruded body 21 and a second extruded body 22 are connected with each other by a die 6 having crimp patterns to form a connection part 7. A design member 25 extended from a lower end of the connection part 7 toward a lower part of a door belt line 5 to be applied on the vehicle room side of the second extruded body 22 is die moulded simultaneously at the time, and crimps are formed in the surface of the design member 25. Because the crimps are formed by the die 6, need of providing an extruded body including an insert at a corresponding part to a door mirror bracket 3 is eliminated, and the crimps can be formed in the design member 25 having a sharp appearance without insert marks.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention relates to a door glass run that is attached to the sliding area between the window frame and the window glass of an automobile door, and particularly to a door mirror bracket that is attached to the front part of the window frame. The present invention relates to a glass run suitable for automobile doors.

0002

[Prior Art] Fig. 3 is a front view of a front door showing the installed state of a door glass run, Fig. 4 is a front view of a conventional door glass run seen from the passenger compartment side, and Fig. 5 is a line BB in Fig. 4. FIG. 6 is an enlarged sectional view taken along line CC in FIG. In FIG. 3, 1 is the window frame of the front door, 2 is the window glass, 3 is the door mirror bracket attached to the front of the window frame 1, and 4 is attached to the sliding part between the window frame 1 and the window glass 2. 5 indicates the door belt line.

As shown in FIG. 4, the conventional door glass run 4 includes a first extruded body 31 extending diagonally downward from the roof portion toward the door mirror bracket 3;
A second extruded body 32 extends downward from the lower front end of the door belt line 5, a third extruded body 33 extends further downward from the lower end of the second extruded body 32, and a third extruded body 33 extends from the rear end of the first extruded body 31 to the door Fourth extruded body 34 hanging down beyond the belt line 5
and a fifth extrusion body 35 extending further downward from the lower end of the fourth extrusion body 34. Each extruded body 31-3
5 is formed by cutting an extrusion molded product made of a solid rubber material such as EPDM (ethylene propylene diene copolymer) into a predetermined length, and the butt ends are placed in a mold 6.
The cavities are filled with the rubber material and the connecting portions 7 are provided so that they are mutually connected. This type connection method is shown in Japanese Patent Application Laid-open Nos. 2-48227 and 2-48228. In the conventional door glass run 4, the first extruded body 31, the second extruded body 32, and the fourth extruded body 34 slide and guide the window glass 2 above the door belt line 5, and the third extruded body 33
The fifth extruded body 35 is configured to slide and guide the window glass 2 below the door belt line 5.

The first extruded body 31, the second extruded body 32, and the fourth extruded body 34 located above the door belt line 5 are each made of an extruded product having the same cross section, and their cross-sectional shapes are shown in FIG. has been done. In FIG. 5, reference numeral 9 denotes a guide portion having a substantially U-shaped cross section for slidingly guiding the window glass 2;
0 is a design part with a substantially U-shaped cross section that also serves as an attachment part to the window frame 1. Since the surface of this design part 10 is exposed on the side of the passenger compartment 12, there is usually some material installed here to improve its appearance. Texturing is performed in the range of arrow P in FIG. During the graining process, a roller with a grain pattern is pressed onto the surface of the design portion 10 to transfer the grain pattern, but since the design portion 10 needs to have rigidity that can withstand the pressing force of the roller, the first extruded body 31, the second extruded body 32, and the fourth extruded body 34 have sheet metal inserts 11 embedded therein for reinforcement, respectively. On the other hand, the third extrusion body 33 and the fifth extrusion body 35 located below the door belt line 5 do not need to have a design part because they are not exposed to the outside. 6, it is extrusion-molded to have a cross-sectional shape consisting only of the guide portion 9.

[0005]

[Problems to be Solved by the Invention] However, according to the conventional door glass run 4, the sheet metal insert 1 has to be textured in a portion corresponding to the door mirror bracket 3.
It was necessary to provide the second extruded body 32 in which the extruded body 1 was embedded between the first extruded body 31 and the third extruded body 33. For this reason, the number of component parts of the door glass run 4 is five, which not only makes manufacturing and management of these parts troublesome, but also increases the number of mold connections and the number of molds, resulting in high costs. Further, the sheet metal insert 11 is usually formed with a large number of slits so that the extruded body can be curved in the longitudinal direction during assembly, so when a textured roller is applied from above, the surface of the designed surface 10 is formed. Since bellows-like insert marks may appear, there is a need to improve the design of the second extruded body 32 in the vicinity of the door mirror bracket 3, which is particularly likely to be seen by passengers.

SUMMARY OF THE INVENTION An object of the present invention is to provide a door glass run for an automobile that can be manufactured at low cost with a small number of components and man-hours, and that can improve the design of the vicinity of the door mirror bracket.

[0007]

[Means for Solving the Problems] In order to solve the above problems, a door glass run for an automobile according to the present invention includes a first extruded body that slides and guides a window glass above a bracket for a door mirror, and a bracket for a door mirror. a second extruded body that slides and guides the window glass below; a connecting portion formed by mold-connecting the abutting ends of the first extruded body and the second extruded body; and a passenger compartment side of the connecting portion. The design piece extends from the lower end below the door belt line and is molded to overlap with the passenger compartment side of the second extruded body. It is preferable that the connecting portion and the design piece are formed continuously from one another using a single mold.

[0008] Here, the "first extruded body" is a conventional first extruded body.
It can be extruded to have the same cross-sectional shape as the extruded body, and a sheet metal insert is embedded here. The "second extruded body" can be extruded to have the same cross-sectional shape as the conventional third extruded body, and no sheet metal insert is embedded therein. When molding the above-mentioned "connection part", that is, connecting the first extrusion body and the second extrusion body, by using a mold with a textured pattern on the molding surface, the connection part is molded in the vicinity of the door mirror bracket. A grain is formed on the surface exposed to the indoor side at the same time as the mold connection. Also, when molding the "design piece", by using a mold with a grain pattern, grains are formed on the surface of the design piece exposed to the indoor side in the vicinity of the door mirror bracket at the same time as the mold is connected. be done. Note that when the connecting portion and the design piece are molded using one mold, they are molded simultaneously so as to be continuous with each other, and the grains are also formed continuously and at the same time.

[0009]

[Operation] According to the automobile door glass run of the present invention,
The abutting ends of the first extrusion body and the second extrusion body are connected by molding to form a connection part, and the connection part extends from the lower end of the connection part on the passenger compartment side to below the door belt line. Since the design pieces that overlap on the passenger compartment side are molded, parts corresponding to the conventional second extruded body are omitted. Therefore, the number of component parts, the number of man-hours for molding, and the number of molds can be reduced, and the product can be manufactured at low cost. In particular, if the connecting portion and the design piece are molded using one mold, the number of man-hours for molding can be further reduced. In addition, when molding the connecting parts and design pieces, if a mold with a grain pattern is used to form the grain at the same time as molding, unlike when using a roller, there will be no insert marks on the surfaces of the joints and design pieces. It is possible to form grains that do not appear and have a sharper appearance, thereby improving the design of the area near the door mirror bracket.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples embodying the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an automobile door glass run according to an embodiment of the present invention as seen from the passenger compartment side, and FIG. 2 is an enlarged sectional view taken along line A-A in FIG. Corresponding parts are given the same reference numerals.

As shown in FIG. 1, the door glass run 4 of this embodiment includes a first extruded body 21 extending from the roof to the upper end of the door mirror bracket 3, and a door belt extending from the front lower end of the first extruded body 21. A second extruded body 22 extends downward beyond the line 5, a third extruded body 23 hangs down beyond the door belt line 5 from the rear end of the first extruded body 21, and further extends downward from the lower end of the third extruded body 23. The fourth extruded body 24 extends to the fourth extruded body 24. The first extruded body 21 and the third extruded body 23 slide and guide the window glass 2 above the door belt line 5, and the second extruded body 22 and the fourth extruded body 24 slide and guide the window glass 2 below the door belt line 5. Glass 2 is slidingly guided. Note that each of the extruded bodies 21 to 24 is molded from a solid rubber material such as EPDM, as in the past.

The first extrusion body 21 and the third extrusion body 23 are formed by cutting an extrusion molded product having the same cross-sectional shape as the conventional one (see FIG. 5) into a predetermined length, and slide the window glass 2. A guide portion 9 is provided, and a design portion 10 is exposed on the side of the vehicle compartment 12. Reinforcing sheet metal inserts 11 are buried inside these design parts 10, and the surfaces thereof are textured with a roller. On the other hand, as shown in FIG. 2, the second extrusion body 22 and the fourth extrusion body 24 are formed by cutting an extrusion molded product having the same cross-sectional shape as the conventional one into a predetermined length, and the design part and the sheet metal insert are cut into a predetermined length. It is composed only of the guide section 9.

The abutting ends of the first extruded body 21 and the second extruded body 22 are connected to each other by a mold 6 having a textured pattern, and a connecting portion 7 is molded into this portion. In this embodiment, by using the mold 6 with its cavity shape extended, it extends continuously from the lower end of the connecting portion 7 on the passenger compartment 12 side to the lower side of the door belt line 5, and the second extruded body 22 A design piece 25 that overlaps and adheres to the passenger compartment side of the upper end is molded at the same time as the connecting portion 7. Also,
When molding the connecting portion 7 and the design piece 25, the connecting portion 7
Since the grain pattern of the mold 6 is transferred to the surface of the design piece 25, the grain is formed in the range indicated by the arrow P in FIG. Note that the first extruded body 21 and the third extruded body 23, and
The third extrusion body 23 and the fourth extrusion body 24 are each mold-connected in a conventional manner.

Therefore, according to the door glass run 4 of this embodiment, the connecting portion 7 is molded at the abutting ends of the first extruded body 21 and the second extruded body 22, and at the same time, the connecting portion 7 is molded into the passenger compartment. Since the design piece 25 extending from the lower end of the side to below the door belt line 5 and overlapping the vehicle interior side of the second extruded body 22 is molded, parts corresponding to the conventional second extruded body 32 are omitted. For this reason, the entire structure can be constructed from four parts, and compared to the conventional art, the number of component parts, the number of molding steps, and the number of molds can be reduced, making it possible to manufacture the device at low cost. In addition, since the connecting portion 7 and the design piece 25 are formed with a grain at the same time as molding using a mold 6 with a grain pattern, insert marks will appear on the surface of the design piece 25, unlike when using a roller. Moreover, it is possible to form grains with a sharper appearance.
As shown in FIG. 2, the design of the portion that protrudes from the door mirror bracket 3 and is exposed to the vehicle interior 12 can be improved.

It should be noted that the present invention is not limited to the configuration of the above-mentioned embodiment. For example, the inner surface of the guide portion 9 may be flocked with short fibers, or each of the extruded bodies 21 to 24 may be formed of PVC material. It is also possible to change the shape, material, and structure of each part as appropriate without departing from the spirit of the present invention.

[0016]

As described in detail above, according to the automobile door glass run according to the first aspect, the number of component parts, the number of molding steps, and the number of molds can be reduced, and the run can be manufactured at low cost.
Using a mold for molding, it is possible to form sharp-looking grains without any insert marks on the surfaces of the connection parts and design pieces.
As a result, the design of the area near the door mirror bracket can be improved. Further, according to the automobile door glass run according to the second aspect of the invention, the number of man-hours for molding can be further reduced.

[Brief explanation of the drawing]

FIG. 1 is a front view of an automobile door glass run according to an embodiment of the present invention, viewed from the passenger compartment side.

FIG. 2 is an enlarged sectional view taken along line AA in FIG. 1;

FIG. 3 is a front view of the front door showing the state in which the door glass run is attached.

FIG. 4 is a front view of a conventional door glass run as seen from the passenger compartment side.

FIG. 5 is an enlarged cross-sectional view taken along line BB in FIG. 4;

FIG. 6 is an enlarged sectional view taken along line CC in FIG. 4;

[Explanation of symbols]

1 window frame
2 Windshield 3 Bracket for door mirror 4
Door glass run 5 Door belt line
6 Mold 9 Guide part
12 Compartment 21 First extruded body
22 Second extruded body 2
5 Design piece
P Grain processing range

Claims (2)

[Claims] 1. A first extruded body that slides and guides the window glass above the door mirror bracket, a second extruded body that slides and guides the window glass below the door mirror bracket, and the first extruded body and the first extruded body. A connection part formed by mold-connecting the butt ends of the second extrusion body, and a connection part extending from the lower end of the connection part on the passenger compartment side to below the door belt line so as to overlap with the passenger compartment side of the second extrusion body. An automobile door glass run equipped with a molded design piece. 2. The automobile door glass run according to claim 1, wherein the connecting portion and the design piece are formed continuously from one another using a single mold.