JPH0417373Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a door corner piece attached to an automobile door.

<Prior Art> Recently, with the demand for improved design of door window glass and the increase in the number of automobiles equipped with door mirrors, as shown in FIG. The demand for a door corner piece 1 that closes a narrow corner with a pillar (front pillar) 12 is increasing. Here, the explanation will be given using a front door corner piece of a sash door as an example, but the same applies to a sash door corner piece and a rear door corner piece. The structure of the door corner piece 1 was as shown in FIGS. 7 to 9, for example.

A corner piece part 2 having an outer shape (usually approximately triangular) that closes the gap between the door belt line 11 in the closed state of the door and the front pillar 12 above the door belt line 11, and a mounting leg part 3 fixed to the door sheet metal (door body) 13. Consisting of The corner piece part 2 is the front pillar 12
It has an internal space constituting a part of the glass storage groove 5 with the contact side as the bottom, and a pair of adjacent glass storage grooves are provided at the opening edge of the glass storage groove located opposite to the narrow corner part on the tip side. It has a grass run portion 6 consisting of a strip lip. The shape retention ability of the corner piece portion 2 is maintained by a sheet metal insert 7 having a U-shaped cross section and covered with an elastic polymer material. In addition,
G is glass.

<Problems to be solved by the invention> The door corner piece having the above structure had the following problems.

(1) In order to maintain the sealing performance of the glass run and to hold the door mirror, it was necessary to ensure the strength of the base of the glass run, so thick inserts (usually around 2 mm) were used. Therefore, the weight of the corner pieces as a whole tended to increase.

(2) Even if the insert is made thicker to increase the strength of the base of the glass run, the strength of the base of the glass run is provided by the free end (long span) of the sheet metal insert with a U-shaped cross section, so sufficient strength can be obtained. It was rattled.

<Means for solving the problem> The corner piece for an automobile door of this invention has the above-mentioned structure, and the sheet metal insert has a cross section of U.
It shall consist of a letter-shaped insert body and a groove-shaped sash insert that is fitted and fixed inside the opening edge located at the base of the glass run part of the insert body to form a glass storage groove, and the bottom of the groove-shaped insert The above problem is solved by a structure in which the upper and lower ends are bridges and the middle part is an opening for communication between the glass storage groove of the corner piece and the internal space formed within the insert body.

<Example> This invention will be explained below based on an example. The same parts as those in the conventional example are given the same reference numerals and the explanation will be omitted.

In the door corner piece having approximately the same shape and configuration as the conventional example (Figs. 7 to 9), the sheet metal insert 21
As shown in FIG. 3, the insert main body 22 having a U-shaped cross section is fitted and integrated (fixed) inside the opening edge 22a located at the base of the glass run of the insert main body 22, thereby forming a glass storage groove. The upper and lower ends of the bottom of the sash insert 23 are bridges 24, 25, and the middle part is a corner piece glass storage groove 5.
This is a communication opening 23a between the inner space 9 and the inner space 9. Here, the insert main body 22 and the sash insert 23 are usually integrated by spot welding, but they may be integrated by other fixing means such as adhesive or rivets. The height of bridges 24 and 25 is usually
The diameter is 20 to 30 mm, and each bridge 24, 25 is formed with insert setting holes 24a, 25a, one of which is a round hole and the other of which is an elongated hole.

Next, a method of forming the corner piece of the above embodiment will be explained.

As the polymeric elastomer as the molding material, a rubber such as CR, IIR, or EPDM, which has good weather resistance, or a thermoplastic elastomer such as polyolefin or polyvinyl chloride is used. In addition, the means for molding is injection or transfer.

As shown in FIGS. 4-6, the sheet metal insert 21
is placed in a mold and insert molding is performed. At this time, the sheet metal insert 21 is inserted into the core 26
Set pins 26a, 2 formed on substantially perpendicular surfaces of
6a, it is inserted into the setting holes 24a, 25a of the bridge of the sash insert and set. For this reason, compared to the conventional case where the U-shaped groove of the sheet metal insert is set through the bottom (which is diagonally provided) (both the upper and lower setting holes need to be long holes), the sheet metal insert 21 is The ease of setting into a molding die is improved, which in turn improves moldability. Also,
The meat stealing convex portion 26b protruding from the core 26 is
It is inserted through the opening between the bridges 24 and 25, and shapes the interior space 9 of the corner piece portion 2. In the illustrated example, 28 is an upper mold, and 29 is a lower mold.

<Operations and effects of the invention> As described above, the corner piece for an automobile door of this invention has a sheet metal insert inside the insert body having a U-shaped cross section and the opening edge located at the base of the glass run portion of the insert body. It consists of a groove-shaped sash insert that is fitted and fixed to form a glass storage groove, the upper and lower ends of the bottom of the sash insert are bridges, and the middle part is a communication opening between the glass storage groove of the corner piece and the internal space. By doing so, the following effects are achieved.

(1) The strength of the base of the glass run is provided by the sash insert with bridges at the top and bottom ends (short span to the free end), so there is no need for the insert body and the sash insert to be thick. As a result of the inventor's study, the conventional 2mmt
steel plate was used, but even with a 1.2 mm thick steel plate, the base of the glass run was able to have higher strength than before. Therefore, it is possible to reduce the weight of the corner piece as a whole, and to easily obtain one with sufficient strength at the base of the glass run.

(2) Since the middle part of the sash insert is the communication opening between the glass storage groove and the internal space, there are mounting legs (usually extending downwards of the insert) at the bottom of the insert body for attaching the door. Even in the case where the glass has an uneven surface, it is possible to steal the thickness of the polymer elastic molded portion in the internal space by inserting the core from the glass storage groove side.

Therefore, in the present invention, the communication opening of the sash insert and the thinning of the molded portion of the polymeric elastic body work together to contribute to reducing the weight of the corner piece. Furthermore, as will be described later, there is no need to assemble the mounting legs afterwards, which also contributes to reducing the number of manufacturing steps for the corner piece.

If there is no communication opening in the middle part of the sash insert (see Japanese Utility Model Publication No. 14023/1983),
The molded part of the polymer elastic material in the internal space can only be stolen from below. However, as mentioned above, since the mounting leg is usually formed with an uneven surface, it is often impossible to steal the mounting leg from below.
Therefore, it is usually necessary to make the internal space of the above-mentioned sash insert solid with a polymeric elastomer, or to assemble the mounting legs after forming the corner pieces by riveting or the like.

[Brief explanation of the drawing]

Figure 1 is a front view of a corner piece showing an embodiment of this invention, Figure 2 is a sectional view taken along the - line in Figure 1, and Figure 3 is an exploded perspective view showing an example of a sheet metal insert used in this invention. Figure 4 is a horizontal cross-sectional view when the mold is closed showing the sheet metal insert shown in Figure 3 set in the molding die, Figure 5 is a cross-sectional view taken along the - line in Figure 4, and Figure 6 is a cross-sectional view taken along the - line in Figure 4. 4 is a sectional view taken along the - line in FIG. 4; FIG. 7 is a front view showing an example of a conventional corner piece; FIG. 8 is a sectional view taken along the - line in FIG. 7;
FIG. 9 is a sectional view taken along the line -- in FIG. 7, and FIG. 10 is a model diagram showing the positional relationship between the corner piece and the elevating glass when mounted on an actual vehicle. 1...Door corner piece, 2...Corner piece part, 3...Mounting leg part, 5...Glass storage groove,
6...Glass run part, 7...Sheet metal insert, 8
...polymer elastic body, 11 ...door belt line,
12... Inclined pillar (front pillar), 13...
...Door sheet metal, 21...Sheet metal insert, 22...
Insert body, 22a... Opening edge, 23...
Sash insert, 23a...Communication opening, 2
4... Britsuji, 25... Britsuji.

Claims (1)

[Claims for Utility Model Registration] A device that is attached to an automobile door and has an external shape that closes the narrow corner between the door belt line when the door is closed and the slanted sash or the slanted pillar located above it. It consists of a corner piece part and a mounting leg part that extends downward from the corner piece part and is fixed to the door sheet metal, and the corner piece part has a cross section of approximately U whose bottom is the side in contact with the inclined sash or the inclined pillar. Has a letter-shaped glass storage groove,
A sheet metal having a U-shaped cross section and having a glass run portion at an opening edge located opposite to the narrow corner portion of the glass storage groove, and having the shape retention ability of the corner piece portion covered with a polymeric elastic material. In the corner piece for an automobile door configured to be maintained by an insert, the sheet metal insert is fitted and fixed inside an insert body having a U-shaped cross section and an opening edge located at the base of a glass run portion of the insert body, It consists of a groove-shaped sash insert forming a glass storage groove, the upper and lower ends of the bottom of the sash insert are bridges, and the middle part is a communication opening between the glass storage groove and the internal space formed in the insert main body. A corner piece for an automobile door characterized by having a corner piece.