JPH01244820A - Manufacture of window molding - Google Patents

Abstract

PURPOSE:To obtain a window molding where it is efficiently precise and insertion of a window plate is easy, by a method wherein after extrusion molding, a first support piece is cuttingly removed at a corner part and deformed so that insertion grooves for the window plate are coincident with each other at the corner part. CONSTITUTION:When lengths of a side part 8, corner part 14 and upper part 10 of a molding obtained through extrusion molding are made l1, l2, and l3 respectively, cutters 31a, 31b are displaced at a point of time when a delivery l1 of a core material 15 is detected by a delivery detector and cut removal of a first supporting piece 12 at a corner part 14 is performed by the cutter 31a. Then when a delivery l2 is detected by the delivery detector, a part of a leg part 7 is cuttingly removed by the cutter 31b along with a second supporting piece 13. When the delivery of the l2 is detected by the delivery detector, a servomotor 35b is inverted, the cutter 31b is restored to the original position and the cut removal of the leg part 7 is ended. After this operation, plastic deformation of a molding material 25 is performed in the vicinity of the corner part 14 and a groove 25a of an upper part 10 and a groove 25b of a side part 8 are deformed so that they are coincident with each other on the same line and insertion grooves 11, 11a of a window plate are formed respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a window molding to be attached to a front window of a vehicle.

[Conventional technology]

Figure 16 is a front view of the vehicle's front window;
The figure is a perspective view of a part of the conventional window molding shown in, for example, Japanese Utility Model Application No. 63-4712. In figure 0, 1 is the vehicle body, 2 is the front window, 3 is the window plate, and 4 is the window molding. be.

The window molding 4 is the window plate 3
a molding body 4a attached to cover the gap S between the molding body 4a and the vehicle body panel 5; a lip 6 protruding from the molding body 4a so as to cover the outer periphery of the window plate 3; and a leg portion 7 extending from the molding body 4a to the gap S. A first support extends from the leg portion 7 toward the window plate 3 side and forms a water collection groove 9 in the side portion 8 and a window plate insertion groove 11 in the upper portion 10 between the leg portion 7 and the lip 6. A window plate insertion groove 11 is provided between the piece 12 and the first support piece 12 in the side portion 8, extending from the tip side of the leg portion 7 toward the window plate 3 side.
a, and has a second support piece 13 which is cut out in the upper part 10.

The first support piece 12 is cut off at the corner part 14 so as to insert the window plate 3, and the second support piece 13 and a part of the leg part 7 are cut off at the upper part IO.

The above window molding 4 is installed in the window plate insertion groove 11a in the side part 8 and in the upper part 1.
0, the window plate 3 is installed and used by being inserted into the window plate insertion groove 11, and the side part 8
Rainwater is collected in a water collection groove 9 formed in the area and allowed to flow down, thereby preventing lateral flow to the side window.

In the conventional manufacturing method of the window molding 4 described above, after forming the molding 4 having the cross-sectional shape shown in FIG.
It is manufactured by cutting out a part of the leg part 7 and the second support piece 13 in the upper part 10.

However, in such a conventional manufacturing method, dimensions are adjusted and a portion is cut out after extrusion molding, which makes dimension matching and cutting difficult. ,1
Since the window plate 3 is inserted into and attached to the window plate 1, there is a problem in that it is difficult to insert the corner part 14.

[Problem to be solved by the invention]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an object of the present invention is to propose a method for manufacturing a window molding that can efficiently and accurately manufacture a window molding in which a window plate can be easily inserted using a simple device and operation. It is to be.

[Means to solve the problem]

The present invention provides (1) a molding body that is attached to cover the gap between the window plate and the vehicle body panel, a lip that projects from the molding body so as to cover the outer periphery of the window plate, and a leg that extends from the molding body to the gap. , and a first groove extending from the leg toward the window plate and forming a groove into which the window plate can be inserted between and between the lip and the lip.
and a step of extruding a long molding material having a constant cross-sectional shape having a second support piece; and a step of cutting out near the exit of the extrusion mold according to the requirements.

(iii) deforming the molding material so as to form substantially coincident window plate insertion grooves between the lip and the first support piece in the upper part and between the first and second support pieces in the side part; A method of manufacturing a window molding including:

Preferably, the present invention further includes the step of cutting out a portion of the second support piece and the leg portion at a portion corresponding to the upper portion.

[For production]

In the present invention, after the molding material is extruded, a portion of the molding material corresponding to the vicinity of the corner of the first support piece is cut off near the exit of the extrusion mold according to the amount of extrusion of the molding material, and then the molding material to produce a window molding by forming substantially coincident window plate insertion grooves between the lip and the first support piece in the upper part and between the first and second support pieces in the side part.

The thus manufactured window molding is attached to a vehicle body panel by inserting the window plate into the window plate insertion grooves in the upper and side parts. In the installed state, the groove between the side tab and the first support piece is used as a water collection groove to collect rainwater and allow it to flow down.

〔Example〕

Examples of the present invention will be described below. Figures 1 to 11 show one embodiment, and Figure 1 is a cross-sectional view taken along line A-A in Figure 16, showing how the manufactured molding is used, Figure 2 is a cross-sectional view taken along line B-B in Figure 16, and Figure 3 is a cross-sectional view taken along line B-B in Figure 16. The figure is a system diagram showing the manufacturing method, FIG. 4 is a plan view of the cutting device, FIG. 5 is a right side view of the cutting device, FIG. 6 is a sectional view taken along line C-C, and FIG. 7 is a sectional view taken along line DD, Figure 8 is a front view of the molding material, Figure 9 is a diagram showing the relationship between the feed amount and cutter displacement, Figure 10 is a front view of a portion of the molding material, and Figure 11 is a front view of a portion of the core material. can be,
The same reference numerals as in FIGS. 16 and 17 indicate the same or corresponding parts.

As shown in FIGS. 1 and 2, the molding 4 to be manufactured has almost the same cross-sectional shape as the conventional molding, but a core material 15 is embedded in the upper part of the leg part 7. 16 is adhesive, 17 is dumb rubber, 18 is opaque print layer, 1
9 is rainwater. As shown in FIG. 11, the core material 15 is made of aluminum, which is provided with slits 20, can be bent in the width direction, and can be plastically deformed.
It is preferable to use a strip material in the form of a metal plate that is less likely to rust, such as stainless steel. The core material 15 is not necessarily required, and in addition to the plate-shaped core material 15 provided with the illustrated slits 20, glass or carbon fiber strands, or polyester resin linear core materials may be used for the molding body 4a and the leg portions 7. One or more may be buried in the portion that will not be excised.

The manufacturing method of the molding 4 is as shown in FIG.
When sending the decorative film through the molding 4 and burying the decorative film so that a part of it is exposed from the outer surface of the molding 4,
Sending out the decorative film 15a from the uncoiler 21a,
The core material 15 may be formed by winding up a material provided with slits 20 into a roll on an uncoiler 21, or may be punched using a punching press or the like while the strip material is being sent out. It is desirable to apply an adhesive or the like to the core material 15 and the decorative film 15a in advance.

The core material 15 is a feed amount detection device 2 such as a rotary encoder.
3, while detecting the delivery amount by feeding into the extrusion mold 24, soft polyvinyl chloride resin, ionomer resin, ethylene-vinyl acetate copolymer resin, acetic acid butyric acid cellulose resin,
In addition, a thermoplastic resin such as an elastomer resin is extruded to form a molding material 25 having the cross-sectional shape shown in FIG. 1 and having grooves 25a and 25b into which the window plate 3 can be inserted.

Next, in response to a signal from the control device 26 in accordance with the amount of the core material 15 delivered, the first and second support pieces 1 are cut in the cutting device 27 while the molding material 25 is in a softened state immediately after extrusion.
2.13 and a part of the leg part 7 are cut out, and while being cooled in a cooling tank 28, it is taken up by a take-up machine 29, and cut into a certain size by a cutter 30 to obtain a molding 4.

The cutting device 27 has two cutters 31a and 31b that maintain a fixed position relative to the tip of the first support piece 12 of the molding material 25 at the exit of the extrusion mold 24 and the tip of the leg 7. The screw thread 34 is attached via support arms 33a, 33b that slide along guides 32a, 32b.
a, 34b. The threaded rods 34a, 34b are connected to servo motors 35a, 35b attached to brackets 36a, 36b. cutter 31a,
As 31b, a stretched thin metal wire is used.

The servo motors 35a and 35b are connected to the control device 126 and rotate forward and reverse according to commands according to a pre-installed program, moving the cutter 31a in the vertical direction and the cutter 31b in the vertical direction.
is designed to move from left to right.

When the length of the side portion 8 of the molding 4 is 2□, the length of the corner portion 14 is Q2, and the length of the upper portion 10 is 123, the feeding amount of the core material 15 and the cutters 31a, 31b of the cutting device 27 are The relationship with the amount of displacement is shown in FIG. That is, the cutters 31a and 31b are connected to the first support piece 12.
And extrusion molding is performed in a state where it is not in contact with the leg part 7,
When the delivery amount Q1 of the core material 15 is detected by the delivery amount detection device 23, the servo motors 35a, 35b are rotated by a predetermined number of rotations to displace the cutters 31a, 31b according to a command from the control device 26. This increases the amount of injection from the cutters 31a and 31b.

At this time, the servo motor 35a rotates by a predetermined amount and then stops, and the cutter 31a cuts the first support piece 12 at the corner portion 14 at the maximum injection amount as shown in FIG. The servo motor 35a rotates in the opposite direction just before the end of Q2, and the cutter 31a moves backward. Servo motor 35
b rotates at a constant number of rotations during this time.

Next, when the delivery amount detection device 23 detects the delivery amount Q2,
The control device 26 instructs the servo motors 35a and 35b to stop rotating, the cutter 31a finishes cutting off the first support piece 12, and the cutter 31b moves a part of the leg 7 to the second support as shown in FIG. Cut it out together with piece 13.

When the delivery amount detection device 23 detects the delivery amount of Q, the servo motor 35a repeats the same operation as described above.
The servo motor 35b rotates in reverse, and the cutter 31b returns to its original position, completing the cutting of the leg portion 7.

Alternatively, the length of one piece of the molding 4, Y indicates the position of cutting by the cutting machine 30.

After the above operation, the molding material 25 is plastically deformed near the corner portion 14 as shown in FIG. Window plate insertion groove 1
1. Deform to form lla.

Such plastic deformation can also be performed by applying only mechanical force using a press or the like by utilizing the plastic deformation of the core material 15;
It is preferable to also apply heat by hot pressing or the like to plastically deform the resin. Such a deformation step may be performed continuously following the extrusion and cutting steps, or may be performed on each molding material 25 after cutting by the cutting machine 30.

12 to 15 show another embodiment, FIG. 12 is a right side view of the cutting device before cutting, FIG. 13 is a right side view of the cutting device during cutting, and FIG. 14 is a right side view of the cutting device before cutting. A partial front view, FIG. 15, is a diagram showing the relationship between the feed amount and the cutter displacement amount.

In this embodiment, the cutter 31a is attached to the support arm 33b in FIG. 5 together with the cutter 31b, and is driven synchronously by one servo motor 35b as shown in FIG. 15. The molding material 25 after cutting is shown in FIG. in this case,
The width W of the cutter 31a only needs to be wider than the thickness of the first support piece 12.

The window molding 4 manufactured as described above has an upper part 1 as shown in FIGS.
0 and the window plate insertion groove 11 of the side part 8,
After inserting window plate 3 into lla, apply adhesive 1
6, attach the window plate 3 to the vehicle body panel 5. At this time, the window plate insertion groove 11, lla
Since they are almost on the same line, insertion of the window plate 3 is easy. In the installed state, the groove 25a between the lip 6 of the side part 8 and the first support piece 12 forms a water collection groove 9, which collects rainwater 19 and allows it to flow down.

In the above embodiment, the delivery amount detection device 23 is connected to the core material 15.
However, instead of this, the amount of the decorative film 15a being fed out, the amount of the molding material 25 taken up, etc. may be detected.

Depending on the shape of the vehicle body panel 5 to which the molding 4 is attached, for example, if the depth of the rising flange 5a in the upper part 10 is the same as that of the side part 8, the depth of the second support piece 13 and the leg part 7 may be different. There is no need to remove the part. Further, the portion of the first support piece 12 to be removed may be in the vicinity of the corner portion 14, and may be, for example, both sides of the side portion 8 or both ends of the upper portion 10.

Since the window molding 4 is attached to the periphery of the window plate 3 in advance and then attached to the vehicle body panel 5, if the first support piece 12 in the upper part 10 is cut out about half as shown by Z in FIG. When attaching to the window plate 3, the upper part 10 can be easily attached after both side parts 8 are attached.

For this purpose, when moving the displacement amount of the cutter 31a from the corner part 14 to the upper part 10 in FIG. Can be excised.

〔Effect of the invention〕

According to the present invention, after extrusion molding, the first support piece is cut off at the corner portion and deformed so that the window plate insertion groove is aligned with the corner portion. It is possible to manufacture a window molding with high precision and into which a window plate can be easily inserted.

[Brief explanation of the drawing]

Figures 1 to 11 are examples, Figures 12 to 1 are examples.
FIG. 5 shows another embodiment, FIG. 1 is a sectional view taken along the line AA in FIG. 16, and FIG.
The figure is a BB sectional view, and Figure 3 is a system diagram showing the manufacturing method.
FIG. 4 is a plan view of the cutting device. Figures 5, 12, and 13 are right side views of the same, Figure 6 is a sectional view taken along line CC in Figure 5, Figure 7 is a sectional view taken along line DD of Figure 5, Figures 8, 10, and Figure 14 is a front view of the molding material, Figures 9 and 15 are relationship diagrams between feed amount and cutter displacement, Figure 11 is a front view of part of the core material, and Figure 16 is a front view of the front window. , FIG. 17 is a partial perspective view of a conventional window molding. In each figure, the same reference numerals indicate the same or corresponding parts, 3 is the window plate, 4 is the window molding, 4 is the window plate, 4 is the window molding,
a is the molding body, 5 is the vehicle body panel, 6 is the lip, 7 is the leg, 8 is the side part, 9 is the water collection groove, 10 is the upper part, 11, lla are the window plate insertion grooves, 1
2 is a first support piece, 13 is a second support piece, 14 is a corner portion, 15 is a core material, 23 is a delivery amount detection device, 24 is an extrusion mold, 25 is a molding material, 26 is a control device, and 27 is a cutout. The devices 31a, 31b are cutters. Agent Patent Attorney Sei Yanagihara Figure 4 Figure 5 Figure 5a Figure 6 Figure 7 Figure 12 Figure 13

Claims (2)

[Claims] (1) (i) A molding body attached to cover the gap between the window plate and the vehicle body panel, a lip protruding from the molding body so as to cover the outer periphery of the window plate, and a leg extending from the molding body to the gap; and a long molding material having a constant cross-sectional shape and having first and second support pieces extending from the legs toward the window plate and forming grooves into which the window plate can be inserted between the legs and between each other. and extrusion molding process. (ii) cutting off a portion of the molding material corresponding to the vicinity of the corner of the first support piece near the exit of the extrusion mold according to the amount of extrusion of the molding material; (iii) in the upper portion, the lip and deforming the molding material to form substantially coincident window plate insertion grooves between the first support pieces and between the first and second support pieces in the side portions. (2) The method for manufacturing a window molding according to claim (1), including the step of cutting off a portion of the second support piece and the leg portion at a portion corresponding to the upper portion.