JPH03130136A - Automotive window molding and manufacture thereof - Google Patents

Abstract

PURPOSE:To contrive to improve the exterior quality of molding and to reduce its production cost by a method wherein bright decorative member is continuously molded integral with window molding and the part, which corresponds to a corner part, of the bright decorative member is singly bent and the window molding main body of said corner part is also molded by injection. CONSTITUTION:Window molding 5 is produced in straight form by extruding window molding main body 6 together with one continuous bright decorative member 8, some portion of which is imbedded in the head part 6b of the main body 6. After that, the part, which corresponds to the corner part as the peripheral edge part of a window opening 2, of the window molding is cut off under the condition that the bright decorative member 8 is left uncut so as to provide a resin-discontinuous part 6C. Next, the bright decorative member 8 at the resin-discontinuous part 6C is bent so as to conform to the curvature R of the corner part Wc. After that, by molding a molding corner part 6A, which coincides with the curvature of the peripheral edge part of the window opening 2, at the cut-off part so as to bond continuously with adjacent extruded straight parts 6B1 and 6B2 in order to form the window molding 5. Thus, the improvement of the exterior quality of the molding and the reduction of its production cost are contrived.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a window molding for an automobile and a method for manufacturing the same.

[Prior art]

Generally, in a car, as shown in FIG. 10, the peripheral edge of a window panel 3 is adhesively fixed to a flange 2' of a window opening 2 of a car body 1, which is dropped from the car body to the boatman, using an adhesive 4, and a window molding 5 is made of a soft material. The legs 6a of the resin window molding main body 6 are engaged with the fasteners 7 adhered to the inner peripheral wall 2a of the opening 2 in the vehicle body 1, and the head 6b is connected between the end of the window panel 3 and the inner peripheral wall 2a of the opening 2. Covering the gap, the head 6b
A bright decorative member 8 made of stainless steel is fitted onto the surface of the holder. Note that 9 is a dumb rubber.

(Refer to Utility Model Application Publication No. 155814/1983).

By the way, the bright decorative member 8 is divided at the corner part Wc, and both ends of the corner part 8a are connected to the straight part 8.
b, when fitted to the end of 8b, and when the corner part W
In some cases, it is formed into a continuous Vt-body with a large curvature at c.

[Problem to be solved by the invention]

However, in the former case, there is a step between the corner piece 8a of the bright decorative member 8 and the straight pieces 8b, 8b, and the parting line is out of order.
When the ends of a and the linear piece 8b are connected by welding, surface distortion occurs, and the bright decorative member 8 lacks a sense of continuity, which not only impairs the sense of quality, but also divides the corner portion Wc. Therefore, a large amount of parts and assembly costs are spent.

On the other hand, in the latter case, since the bright decorative member 8 is one continuous piece, the above-mentioned problem is solved, but the corner portion We has to be made large, so it is not possible to use it due to design restrictions. The problem was that there were many cases where this was not possible.

The present invention has been made in view of these conventional problems, and an object of the present invention is to provide an automobile window molding that improves the appearance quality and reduces costs, and a method for manufacturing the same.

[Means to solve the problem]

In order to achieve such an object, the method for manufacturing an automobile window molding of the present invention includes the following steps: in the window molding provided to cover the gap between the inner peripheral edge of the window opening of the vehicle body and the end of the window panel, at least one continuous A resin cut-off portion where the synthetic resin is removed, leaving the bright decorative portion at a portion corresponding to the corner portion of the window opening periphery of the window molding body, which is formed into a substantially straight line by extrusion molding the synthetic resin together with the bright decorative member. Next, the bright decorative member at this resin break part is bent and molded to match the curvature of the corner part, and then a molding corner part that matches the curvature of the corner part is formed by injection molding on the resin break part of the window molding body. The window molding is formed by molding and continuously joining adjacent extruded linear parts to form a window molding.

In addition, the automotive window molding of the present invention includes at least one continuous bright decorative member extending from the straight line portion to the straight line portion via the corner portion at the peripheral edge of the window opening, and a synthetic resin extruded into the straight line portion of the bright decorative member. a linear portion formed by molding; and a molding corner formed by injection molding synthetic resin into the corner portion of the glitter decorative member in accordance with the corner portion of the window opening periphery, and continuously joined to the linear portion. It is characterized by consisting of parts and.

[For production]

Since the bright decorative member is one continuous piece, the sense of continuity is improved, and the parts corresponding to the corner parts of the bright decorative member are individually bent and molded, and the window molding body of this part is also formed by injection molding. Therefore, the curvature of the corner portion can be reduced. moreover,
Since the bright decorative member is not divided, the parts cost and assembly cost are reduced.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings, in which the same parts as those in the conventional art are given the same reference numerals.

In Figure 1, a window panel 3 is attached to the flange 2' of the window opening 2 of the car body 1, which is dropped from the car body to the boatman.
The peripheral edge of the window molding 5 is fixed with an adhesive 4. The leg part 6a of the window molding main body 6 made of soft resin is secured to a fastener 7 adhered to the inner peripheral wall 2a of the opening 2 in the vehicle body 1, and the window molding 5 is fixed with an adhesive 4. The portion 6b covers the gap between the end of the window panel 3 and the inner peripheral wall 2a of the opening 2, and a bright decorative member 8 made of stainless steel is fitted onto the surface of the head 6b. Note that 9 is a dumb rubber.

The basic structure described above is the same as before.

As shown in FIGS. 2 and 3, the window molding 5 is formed into a straight line by extrusion molding together with a window molding main body 6 and a continuous bright decorative member 8 whose head portion 6b is partially coated. do.

Thereafter, as shown in FIGS. 4 and 5, a bright decorative member is attached to a portion of the window molding main body 6 corresponding to a corner portion (part Wc in FIG. 9) of the peripheral edge of the window opening 2 (see FIG. 1). 8 is left and cut to provide a resin disconnection portion 6C.

Next, as shown in FIG.
is bent to match the curvature R of the corner portion Wc.

Thereafter, as shown in FIG. 7, the cut portion of the window molding body 6 is set in a mold (not shown) of an injection molding machine, and injection molding is performed to fit the periphery of the window opening 2 into the cut portion. The molding corner portion 6A of the window molding body 6 that matches the curvature R of the corner portion Wc is molded, and the adjacent extrusion-molded linear portion 6B.

Continuously join 68g to window molding 5
is finally formed.

With this configuration, since the bright decorative member 8 is one continuous piece, there is no step difference, parting line deviation, or surface distortion between the corner part and the straight part unlike in the past, and it is continuous. In addition, since the part corresponding to the corner part of the bright decorative member 8 is individually bent and molded, and the window molding body 6 in this part is also formed by injection molding, the curvature of the corner part can be reduced, and the design is improved. There are no above restrictions. Therefore, these factors work together to significantly improve the appearance quality.

In addition, since the bright decorative member 8 is not divided, the parts cost and the vertical cost are significantly reduced by 1 Mi, resulting in a cost reduction.

Furthermore, since the bright decorative member 8 straddles the injection-molded corner portion 6A of the window molding main body 6 and the extruded linear portions 6B, , 6B, the strength of the joint can be ensured, and the bending at the boundary can be avoided. etc. can be prevented.

In the above embodiment, the resin discontinuous portion 6C of the window molding 6 was formed by cutting the continuously formed resin portion of the window molding 6, but the present invention is not limited to this. For example, the bright decorative member 8 may be extruded as it is, The extrusion of the resin may be interrupted only at a portion corresponding to the corner portion (part Wc in FIG. 9) at the peripheral edge of the window opening 2 to form a resin discontinuation portion, and in this case, less soft resin is wasted due to cutting. It's over.

〔effect〕

As explained above, according to the present invention, in the window molding provided to cover the gap between the inner peripheral edge of the window opening of the vehicle body and the end of the window panel, synthetic resin is used together with at least one continuous bright decorative member. A resin cut-off part is provided in which the synthetic resin is removed, leaving the bright decoration part, in a part corresponding to the corner part of the window opening peripheral part of the window molding main body, which is formed into a substantially straight line by extrusion molding, and then this resin is removed. A bright decorative member at the discontinuous part is molded to match the curvature of the corner part, and then a molding corner part that matches the curvature of the corner part is molded on the resin discontinuous part of the window molding body by injection molding, and the adjacent extrusion is molded. At least one continuous bright decorative member is connected to the formed straight line part and extends from the straight line part at the peripheral edge of the window opening through the corner part to the straight line part, and a pedestal is attached to the straight line part of the bright decorative member. A straight part is formed by extrusion molding the bottom 4Δ1 resin, and a synthetic resin is applied to the corner part of the bright decorative member to match the corner part of the window opening periphery. Since the window molding is made up of a molding corner part that is continuously joined to the other parts, it is possible to improve the appearance quality and reduce the cost.

[Brief explanation of the drawing]

FIG. 1 is a sectional view taken along the line 1-1 in FIG. 9 showing an example of the use of the window molding according to the present invention, FIGS. 2 to 8 are diagrams showing the manufacturing method of the present invention in order of process, and FIG. A sectional view corresponding to the line mm in FIG. 2 and the TV-IV line in FIG. 4,
Figure 5 is a sectional view taken along the ■-V line in Figure 4, and Figure 8 is the ■-V line in Figure 7.
9 is a perspective view of an automobile, and FIG. 10 is a perspective explanatory view of a portion surrounded by a circle X in FIG. 9 showing a conventional example. ■・・・Car body, 2・・・Window opening,
3...Window panel, 5...Window molding, 6...Window molding body, 6A...Mall corner part, 6B+, 68z...・Straight part, 6C
... Resin heat insulation part, 8 ... Bright decorative member, Wc ... Corner part, R ... Curvature. Sha 3rd team Raku 1st Ki 5th l

Claims (2)

[Claims] (1) In a window molding that is installed to cover the gap between the inner peripheral edge of a window opening in a vehicle body and the end of a window panel, a synthetic resin is extruded and formed into a substantially linear shape along with at least one continuous bright decorative member. A resin discontinuous part is provided in which the synthetic resin is removed, leaving the glitter decorative part in the window opening periphery of the window molding main body that corresponds to the corner part, and then the glitter decorative member in this resin discontinuous part is attached to the corner. Then, a molding corner part that matches the curvature of the corner part is formed by injection molding on the resin discontinuous part of the window molding body so that it is continuous with the adjacent extruded straight part. A method of manufacturing an automobile window molding in which the window molding is formed by bonding the window molding to the window molding. (2) At least one continuous bright decorative member extending from the straight line portion to the straight line portion via the corner portion in the window opening periphery, and a straight line formed by extrusion molding a synthetic resin on the straight line portion of the bright decorative member. and a molded corner part formed by injection molding synthetic resin on the corner part of the bright decorative member in accordance with the corner part of the window opening periphery, and continuously joined to the straight part. molding.