JPH0524609Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to long moldings for vehicles and the like.

[Conventional technology]

FIG. 11 is a perspective view of the vehicle. In the figure,
1 is the vehicle body, 2 is the door, 3 is the door glass, and 4 is the molding (belt molding). The molding 4 is formed into a long length and is arranged at the sliding portion of the door 2 and the door glass 3.

The molding 4 is often formed of an extrusion molded product having a resin part and having a substantially constant cross-sectional shape, but in order to attach other parts such as door mirrors and corner pieces, the cross-sectional shape is There are cases where terminal members whose shapes change are connected.

[The problem that the idea aims to solve]

However, in such conventional molding, when the terminal member is connected to the terminal part of the molding main body and an injection molded part of synthetic resin is formed on the outer surface of the terminal member, if the resin part is thin, it is difficult to form the injection molded part. There was a problem in that the resin did not completely spread to the parts where the molded part was formed, resulting in poor bonding between the resin part and the injection molded part.

This idea was developed to solve the above problems. Even if the resin part is thin, the resin can be completely spread over the part to be formed in the injection molded part, and it can improve the bonding between the resin part and the injection molded part. The purpose is to propose a molding that can prevent cracks from occurring between the resin part and the injection molded part.

[Means to solve the problem]

This invention has substantially the same cross-sectional shape,
and a long molding body having a resin part on the outer surface, and a part of the molding body fitted inside the end part of the molding body so as to form an overlapping part, and having a resin part in a part corresponding to the resin part. an end member having a step portion greater than the thickness of the end member; a through hole formed near the raised portion of the end member that extends from the step portion to the overlapping portion; and a through hole formed in the step portion so as to cover the outer surface of the end member. This molding includes an injection molded part made of synthetic resin that is made of plastic and forms the same surface as the resin part, and a locking part that bulges out from the injection molded part to the opposite side through the through hole.

In the present invention, it is preferable that the molding main body has a protrusion extending to cover a part of the stepped portion of the terminal member, and the through hole is preferably formed in the raised portion or the stepped portion near the raised portion. .

[Effect]

In the molding of this invention, the molding main body and the end member are fitted together so as to partially form an overlapping part and inserted into an injection mold, and a synthetic resin is injected into the stepped part of the end member to form the injection molded part. The molding is manufactured by forming a molding body and joining the resin part so as to form the same surface as the resin part of the molding main body.

At this time, since the stepped portion is large, the injection resin completely spreads over the part forming the injection molded part and is bonded to the resin part of the molding main body, resulting in good bonding between the resin part and the injection molded part.

In addition, a through hole is formed near the upright part of the terminal member, and a locking part is formed on the opposite side through this hole, thereby preventing the resin in the injection molded part from shrinking and causing cracks between the resin part and the injection molded part. There's nothing to do. Forming a protrusion on the molding body that extends to cover a part of the stepped portion of the terminal member increases the effect of preventing cracks, and also prevents sink marks that occur on the outer surface of the injection molded part in the portion corresponding to the through hole. This prevents deformation such as

〔Example〕

This invention will be explained below with reference to embodiments of the drawings. Figure 1 is a perspective view of a part of the molding of the embodiment, Figure 2 is its rear view, and Figure 3 is A-A.
Cross-sectional view, Figure 4 is B-B cross-sectional view, Figure 5 is C-C
The sectional view and FIG. 6 are perspective views of the back side showing the molding before injection molding.

The molding 4 has a notch 7 formed therein so that an end member 6 whose cross-sectional shape changes can be connected to the end of a molding main body 5 made of a long extruded product having substantially the same cross-sectional shape. and is formed by connecting the terminal members 6.

The molding main body 5 is formed by covering the outer periphery with a resin part 10 so as to leave a part of the outer surface side of a metal profile 8 bent from a stainless steel plate or the like so that the lower part is open as a metallic gloss part 9. A lip 11 extends from this resin portion 10 toward the door glass 3 side. The resin portion 10 forms a thin film layer on the outer surface. The cutout portion 7 is a metal profile 8 on the door glass 3 side of the end portion of the molding body 5, and a resin portion 1.
0, it is formed by cutting out the lip 11.

The terminal member 6 is a press part made of a metal plate such as a stainless steel plate, which is connected to the molding body 5 so that the portion left by the notch extends as it is, and has an upward protrusion 12 formed at one tip. ing. The connection between the terminal member 6 and the molding main body 5 is such that the other tip of the terminal member 6 is connected to the butt portion 1.
3 to the inside of the molding body 5 to form an overlapping part 14, and its side edge 20a engages with the hook-shaped part 15 formed on the side edge 20 of the molding body 5. Fitted together. The butt portion 13 is a raised portion such that the metallic shiny portion 9a of the end member 6 forms the same surface as the metallic shiny portion 9 of the molding main body 5. Resin part 10
On the contrary, the portion of the terminal member 6 that corresponds to is lowered,
A step portion 16 having a step H larger than the thickness of the resin portion 10 is formed. Step portion 1 of terminal member 6
A through hole 18 is formed in the vicinity of the upright portion 17 that extends from the portion 6 to the overlapping portion 14 . The end of the molding body 5 extends to cover the vicinity of the through hole 18 and has a protrusion 19 formed therein.

Side edge 2 of notch 7 of molding main body 5
0. An injection molded portion 21 of synthetic resin is formed so as to integrally cover the side edge 20a of the terminal member 6, the stepped portion 16, and the vicinity of the through hole 18. On the outer surface side of the terminal member 6, this injection molded part 21 is filled with a stepped part 16, leaving a metallic shiny part 9a connected to the metallic shiny part 9, and a resin part 1 connected to the resin part 10.
0a is formed. Further, the resin portion 10a filled in the stepped portion 16 bulges out to the inner side through the through hole 18 to form a locking portion 22, and bridges the resin portion 10b covering the side edge portion 20a of the terminal member 6. Resin portion 10 of molding main body 5 and terminal member 6
An adhesive layer 2 is applied in advance to the portions where a and 10b are to be formed.
It is preferable to form 3. Reference numeral 24 denotes a retainer, which has a structure in which a bolt 27 is embedded in a resin head 26 that engages with a bent portion 25 formed on the side edge 20a of the terminal member 6. It is fixed to the inner surface of the terminal member 6. 28
is a resin protruding portion that prevents the retainer 24 from shifting laterally.

The molding 4 configured as above is
The butt part 13 of the terminal member 6 is fitted to the end of the molding main body 5 to form an overlapping part 14, and the end member 6 is inserted into an injection mold and molten resin is injected into the stepped part 16. A molded portion 21 is formed. At this time, the notch 7 of the molding body 5
Injection molding is performed to cover the side edge 20 of the end member 6, the side edge 20a of the end member 6, the stepped portion 16, and the vicinity of the through hole 18, thereby forming the resin portion 10a of the injection molded portion 21.
10b and the locking portion 22 are integrally formed, and the retainer 24 is fixed.

In the above injection molding, the stepped portion 16 is formed by the resin portion 10.
Since the step H is larger than the thickness of the injected molten resin, the flow resistance of the injected molten resin is small, and the injected molten resin completely spreads over the step portion 16 to form the resin portion 10a, resulting in good bonding with the resin portion 10.

In addition, a through hole 18 is provided near the upright portion 17 of the terminal member 6.
is formed, and the locking part 22 is formed on the opposite side through this, so that the resin part 10 and injection molded part 21 of the molding body 5 due to the contraction of the resin part 10a
This prevents the cracks 29 shown in FIG. 10 from forming between them. Also, the terminal member 6 is attached to the molding main body 5.
A protruding portion 1 extending to cover a part of the stepped portion 16 of
9 is formed, the effect of preventing the occurrence of cracks is enhanced, and deformation such as sink marks occurring in the portion of the outer surface of the terminal member 6 corresponding to the through hole 18 can be prevented.

The molding 4 manufactured as described above is fixed to the vehicle body 1 by attaching a mounting clip (not shown) to the inside of the molding body 5, attaching it to the vehicle body panel, and tightening it with a nut using a bolt.

7 to 9 are sectional views taken along the line CC in FIG. 1, showing other embodiments. In FIG. 7, the through hole 18 is provided in the upright portion 17, and in this embodiment, the effect of preventing the resin portion 10a from shrinking is even greater. 8 and 9 are examples in which the protrusion 19 is omitted in the case of FIGS. 5 and 7, and in FIG. Although deformation such as sink marks is likely to occur, there is no problem when the step H is greater than about three times the thickness of the terminal member 6. In addition, in FIG. Part 1
The wall thickness in the direction perpendicular to the outer surface of 0a is constant, and deformation such as sink marks does not occur.

FIG. 10 is a cross-sectional view taken along the line C-C shown in the reference example.
If there is no locking part 22, the resin parts 10, 10a
This shows that cracks 29 are likely to occur between them.

In addition, in the above explanation, molding 4
The present invention is applicable not only to belt moldings but also to other moldings having overlapping portions 14, and the structures of the molding main body 5 and the terminal member 6 can be changed depending on the shape of each molding.

[Effect of idea]

According to the present invention, since the injection molded part is formed in the stepped part that is larger than the thickness of the resin part of the molding main body, even if the resin part is thin, the resin can be spread over the part where the injection molded part will be formed. It is possible to improve the bondability between the resin part and the injection molded part, and it is also possible to prevent cracks from occurring between the resin part and the injection molded part.

In addition, by forming a protrusion on the molding body that extends to cover a part of the stepped portion of the terminal member, the effect of preventing cracks from occurring will be increased, and deformation such as sink marks that may occur in the portion corresponding to the through hole on the outer surface. becomes less.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a part of the molding of the embodiment, Fig. 2 is a rear view thereof, Fig. 3 is a cross-sectional view taken along A-A, Fig. 4 is a cross-sectional view taken along B-B, and Fig. 5 is a cross-sectional view taken along C-C. -C sectional view, FIG. 6 is a perspective view of the back side before injection molding, FIGS. 7 to 9 are another embodiment, and FIG. 10 is a C-C sectional view of FIG. 1 showing a reference example. FIG. 11 is a perspective view of the vehicle. In each figure, the same reference numerals indicate the same or equivalent parts, 4 is the molding, 5 is the molding main body, 6 is the terminal member, 7 is the notch, 8 is the metal profile, 9 and 9a are the metallic shiny parts, 10 ,10a,10
b is a resin part, 13 is a butt part, 14 is an overlapping part,
16 is a stepped portion, 17 is a rising portion, 18 is a through hole, 1
9 is a protruding part, 21 is an injection molded part, 22 is a locking part,
24 is a retainer.

Claims (1)

[Claims for Utility Model Registration] (1) A long molding body having substantially the same cross-sectional shape and having a resin part on the outer surface, and a part inside the terminal part of this molding body. are fitted together to form an overlapping part,
and a terminal member having a stepped portion larger than the thickness of the resin portion in a portion corresponding to the resin portion, a through hole formed near a raised portion continuous from the stepped portion of the terminal member to the overlapping portion, and a through hole of the terminal member. an injection molded part of a synthetic resin that fills the stepped part so as to cover the outer surface and forms the same surface as the resin part; and a locking part that bulges from the injection molded part to the opposite side through the through hole. Molding with. (2) Claim (1) wherein the molding main body has a protrusion extending so as to cover a part of the stepped portion of the terminal member.
Molding as described. (3) The molding according to claim (1) or (2), wherein the through hole is formed in the raised part or a stepped part near the raised part.