JP2000025050A - Method for treating terminal of interior material for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject method which eliminates the possibility of the re-bonding of the fused parts of an interior material even if the interior material is irradiated with laser beam to be fused under heating, prevents the deformation of the interior material caused by natural standing, having no abrasion possibility of a cutter or a blade receiver, imparting excellent appearance and reducing a work process. SOLUTION: In a method for treating the terminal of an interior material for a vehicle consisting of an interior base material 2 and the skin material 3 bonded to the surface of the interior base material, the terminal 1a of the interior material 1 is cut by the laser beam 17 of a laser device 15 and the cut surface of the terminal 1a of the inferior material 1 is pressed and crushed from the side of the skin material 3 before cooling by a pressure bar 18 or by the air jet from an air nozzle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for processing a terminal of an interior material for a vehicle.
The present invention relates to a terminal treatment method for a vehicle interior material used for a door trim and other interior materials for a vehicle, the interior trim material being composed of an interior base material and a skin material bonded to a surface side of the interior base material.

[0002]

2. Description of the Related Art Conventionally, molded ceilings for vehicles and the like, door trims and other interior materials are formed by joining a skin material to a ceiling base material, an interior base material, and the like. These ceiling base material and interior base material are formed using a foamed polypropylene base material or a felt base material. The skin material is formed from a nonwoven fabric or the like, or a cloth skin such as a tricot on the front surface side and wadding such as slab urethane laminated on the back surface side of the skin.

As shown in FIGS. 6 to 10, a conventional interior material 1 such as a molded ceiling for a vehicle comprises an interior substrate 2 and an interior substrate 2
The end 1a of the interior material 1 is cut by a water jet device 11 shown in FIG. 7, a laser device 15 shown in FIG. 8, or a cutter 5 shown in FIG. 9 or the like. Then, as shown in FIG. 10, terminal processing is performed by a return processing 7 such as hemming.

As shown in FIG. 6, when the conventional interior material 1 is a molded ceiling for a vehicle, the interior material 1 such as a windshield or a rear glass of the vehicle is viewed from the front side of a window 19.
A black print 20 is provided at the end of the front glass or the rear glass to cover the interior base material 2 having a poor appearance of the terminal 1a so as not to be exposed.

[0005]

A terminal 1 of the interior material 1
When the water jet device 11 is used as shown in FIG.
1 has a disadvantage that water splashing occurs due to water splashing. Also, as shown in FIG. 8, when the laser beam 17 is irradiated by the laser device 15 to perform heating and fusing, since the fusing portion is in a heated state, there is a risk of rejoining and sticking. However, there is a fear that the material may be deformed when left naturally.

Further, as shown in FIG. 9, when cutting is performed by the cutter 5 or the like, the blade receiver 6 must be provided on the mold 4, which has a disadvantage that the cutter 5 and the blade receiver 6 are worn.
In addition, when these cutting means are used, the ends as cut edges are exposed, and the appearance is poor, and there is a fear that a cutting defect may occur.

Further, as shown in FIG. 6, when the interior material 1 is a molded ceiling for a vehicle, an interior base 1 having a poor appearance of the terminal 1a of the interior material 1 from the front side of a window 19 such as a windshield or a rear glass of the vehicle. There is a possibility that the material 2 is exposed, and a black print 2 is formed on the end of the windshield or the rear glass.
When the cover is provided with 0, the operation is complicated.

An object of the present invention is to eliminate the possibility that, even when a laser beam or the like is applied to heat and melt, the melted portion is not deformed or rejoined and sticks together, and the cutter or blade holder is not worn. Work process can be reduced, appearance is excellent,
It is an object of the present invention to provide a method of processing a terminal of a vehicle interior material which is excellent in economic efficiency.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a terminal processing method of an interior material for a vehicle according to claim 1 comprises an interior base material and a surface side of the interior base material. In the terminal treatment method for a vehicle interior material comprising a skin material joined to a terminal material, the terminal of the interior material is cut by a heating means, and the cut surface of the terminal of the interior material is pressed from the skin material side before cooling. It is characterized by crushing.

[0010] The terminal treatment method for a vehicle interior material according to claim 2 is a terminal treatment method for a vehicle interior material comprising an interior base material and a skin material bonded to a surface side of the interior base material. The end of the interior material is laser-cut, and the cut surface of the end of the interior material is crushed by pressing with a pressing bar from the skin material side before cooling.

According to a third aspect of the present invention, there is provided a terminal treatment method for a vehicle interior material, comprising: an interior base material; and a skin material bonded to a surface of the interior base material. The end of the interior material is laser-cut, and the cut surface of the end of the interior material is pressed and crushed by air jet from the skin material side before cooling.

According to the terminal treatment method for a vehicle interior material according to claim 1 of the present invention, the terminal of the interior material is cut by a heating means, and the cut surface of the terminal of the interior material is cooled before cooling. Since it is pressed and crushed from the side, the terminal of the interior material can be plastically deformed and can be prevented from being deformed due to natural standing, and there is no possibility that the fusing portion will rejoin and stick, reducing the number of working steps. The appearance of the terminal of the interior material can be improved.

[0013] According to the terminal treatment method for a vehicle interior material according to claim 2 of the present invention, the terminal of the interior material is laser-cut and the cut surface of the terminal of the interior material is cooled before cooling. Since it is pressed and crushed by the pressing bar from the side, the terminal of the interior material can be prevented from being plastically deformed and deformed due to natural standing, and there is no possibility that the fusing portion will be rejoined and stuck. Can be reduced, and the appearance of the terminal of the interior material can be improved.

Further, according to the terminal treatment method for a vehicle interior material according to claim 3 of the present invention, the terminal of the interior material is laser cut, and the cut surface of the terminal of the interior material is cooled before cooling. Pressing and crushing by air injection from the side, it can prevent the end of the interior material from being plastically deformed and deforming due to natural standing, and the fusing part is rejoined by the pressing force and cooling effect by air injection. There is no risk of sticking, the number of working steps can be reduced, and the appearance of the terminal of the interior material can be improved.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method for processing a terminal of an interior material for a vehicle according to the present invention will be described in detail with reference to the drawings. 1 to 3 (a), (b), and (c) each show an outline of an embodiment of a terminal processing method for a vehicle interior material according to the present invention, and in the present embodiment, The case where the present invention is applied to a molded ceiling for a vehicle as an interior material will be described, but the present invention is not limited to this. Parts corresponding to those in FIG. 8 are described with the same reference numerals.

As shown in FIG. 1, an interior material 1 as a molded ceiling for a vehicle is composed of an interior substrate 2 and a skin material 3 laminated on the surface side of the interior substrate 2. The interior substrate 2 can be formed from a secondary or post-expanded polypropylene (PP) substrate.

Further, the skin material 3 is made of a non-woven fabric or the like, and may be, for example, a PET non-woven fabric, a PP non-woven fabric, a PE non-woven fabric, a nylon non-woven fabric, an acrylic non-woven fabric, or a cloth-made skin such as a tricot on the surface side and this skin. A skin material made of wadding such as slab urethane laminated on the back side of the slab can also be used.

The terminal 1a of the interior material 1 is cut by heating means, and the cut surface of the terminal 1a of the interior material 1 is pressed and crushed from the skin material 3 side before cooling. In the present embodiment, the cutting by the heating means is performed by irradiating a laser beam 17 with a laser device 15 as shown in FIG. In addition, cutting by high-frequency heating or ultrasonic heating can also be used.

In the present embodiment, as shown in FIG. 3 (b), as a means for pressing the cut surface of the terminal 1a of the interior material 1 from the side of the skin material 3 before cooling, the laser device 1
5 is pressed and crushed by a pressing bar 18 provided behind. The tip 18a of the pressing bar 18 is formed in a wedge shape,
Further, it is formed so as to protrude toward the laser beam 17 when viewed from the side.

The terminal 1a of the interior material 1 is connected to the laser device 1
In the initial stage of cutting by the laser beam 17 of 5,
The pressing bar 18 does not contact the terminal 1 a of the interior material 1.
After the end 1a of the interior material 1 is cut, before the cut surface is cooled, that is, immediately after being melted and heated by the laser beam 17, the surface 2 is pressed by the pressing bar 18 to be crushed.

After the terminal 1a of the interior material 1 is cut, it is pressed and crushed by the pressing bar 18, so that the pressing operation is easy,
There is no fear that the terminal 1a of the interior material 1 is plastically deformed and the fusing portion is rejoined and adhered. In addition, as shown in FIG. 3 (c), when the burr 1b is generated on the terminal 1a of the interior material 1, the burr 1b is cut so that the interior material 1 having an excellent appearance as shown in FIG. Terminal 1a can be obtained.

FIGS. 4 (a) and 4 (b) show different embodiments of the present invention, respectively. Parts corresponding to those of the above-described embodiment are denoted by the same reference numerals, and further details will be described. Although the description is omitted, the cut surface of the terminal 1a of the interior material 1 is cooled before cooling by the air jet 23 from the air nozzle 22 connected to the air jet device behind the laser device 15 instead of the pressing bar 18. Press and crush.

The cut surface of the terminal 1a of the interior material 1 can be pressed and cooled by the air jet 23, so that the pressing operation is easy, and the terminal 1a of the interior material 1 is plastically deformed. It can be prevented from being generated, and there is no possibility that the fusing portion is rejoined and adhered, and the terminal 1a of the interior material 1 having excellent appearance can be obtained as shown in FIG.

FIGS. 5 (a), 5 (b), 5 (c) and 5 (d) show different embodiments of the pressing bar 18 of the present invention, respectively. The pressing bar shown in FIG. Reference numeral 18 designates a receiving portion 18b for pressing the burr 1b integrally formed below the tip 18a. The upper end surface of the receiving portion 18b is formed to extend substantially in the horizontal direction, and presses the burr 1b generated on the cut surface of the terminal 1a of the interior material 1 substantially in the horizontal direction.
As shown in (c), a burr 1 is provided under the terminal 1a of the interior material 1.
b can be folded back.

The pressing bar 18 shown in FIG. 5B has a receiving portion 18c for pressing the burr 1b integrally formed below the tip 18a. The upper end surface of the receiving portion 18c is formed to be inclined, and presses the burr 1b generated on the cut surface of the terminal 1a of the interior material 1 in the inclined direction, and as shown in FIG. Can be folded back in a state where the burr 1b is inclined at the lower part of the frame.

In this embodiment, the terminal 1a of the interior material 1 is used.
Is cut from the outer end by the laser beam 17 of the laser device 15, but the terminal 1a of the interior material 1 is cut.
Can be cut from a position other than the outer end. In this case, when the pressing bar 18 shown in FIGS. 5A and 5B is used, a through-hole formed in the receiving portion 18b or the receiving portion 18c of the pressing bar 18 is formed in the terminal 1a of the interior material 1. It is.

[0027]

The above is the embodiment of the terminal treatment method for a vehicle interior material according to the present invention. The terminal is cut by a heating means, and the cut surface of the terminal of the interior material is pressed and crushed from the skin material side before cooling, so that the terminal of the interior material is plastically deformed and is prevented from being deformed due to natural standing. It is possible to reduce the number of working steps and improve the appearance of the terminal of the interior material without the risk of the fusing portion being rejoined and sticking.

According to the terminal treatment method for a vehicle interior material according to a second aspect of the present invention, the terminal of the interior material is laser-cut and the cut surface of the terminal of the interior material is cooled before cooling. Since it is pressed and crushed by the pressing bar from the side, the terminal of the interior material can be prevented from being plastically deformed and deformed due to natural standing, and there is no possibility that the fusing portion will be rejoined and stuck. Can be reduced, and the appearance of the terminal of the interior material can be improved.

Further, according to the method of treating a terminal of a vehicle interior material according to claim 3 of the present invention, the terminal of the interior material is laser cut, and the cut surface of the terminal of the interior material is cooled before cooling the surface material. Pressing and crushing by air injection from the side, it can prevent the end of the interior material from being plastically deformed and deforming due to natural standing, and the fusing part is rejoined by the pressing force and cooling effect by air injection. There is no risk of sticking, the number of working steps can be reduced, and the appearance of the terminal of the interior material can be improved.

According to the present invention, it is possible to prevent the end of the interior material from being plastically deformed by the pressing force and being deformed due to natural standing even if it is heated and melted by irradiating a laser beam or the like. There is no danger of re-joining and sticking, and there is no danger of abrasion of the cutters and blade holders. Obtainable.

[Brief description of the drawings]

FIG. 1 is an explanatory side view showing a terminal processing method for a vehicle interior material according to the present invention.

FIG. 2 is a cross-sectional view of a terminal of the interior material cut by the terminal treatment method for a vehicle interior material according to the present invention.

3A and 3B show a method for processing a terminal of an interior material for a vehicle according to the present invention, wherein FIG. 3A is a front explanatory view of a laser cut state, and FIG. (C) is a sectional view of a terminal of the interior material in a cut state.

FIGS. 4A and 4B show different embodiments of the terminal treatment method for vehicle interior materials according to the present invention, wherein FIG.
(B) is an explanatory front view.

FIGS. 5A and 5B show different embodiments of a pressing bar of the terminal treatment method for a vehicle interior material according to the present invention, wherein FIG. 5A is a front sectional view, FIG. 5B is a front sectional view, and FIG. (a) is a cross-sectional view of a terminal of the interior material when the pressing bar is used, and (d) is a cross-sectional view of the terminal of the interior material when the pressing bar of (b) is used.

FIG. 6 is a partial sectional view of a conventional molded ceiling for a vehicle.

FIG. 7 is a partial cross-sectional view showing a conventional terminal treatment method for a vehicle interior material using a water jet.

FIG. 8 is a partial cross-sectional view showing a method for processing a terminal of an interior material for a vehicle using a conventional laser device.

FIG. 9 is a partial cross-sectional view illustrating a method of processing a terminal of a vehicle interior material using a conventional cutter.

FIG. 10 is a partial cross-sectional view illustrating a conventional method for processing a terminal of an interior material for a vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Interior material 1a Terminal 1b Burr 2 Interior base material 3 Skin material 15 Laser device 17 Laser beam 18 Press bar 18a Tip 18b Receiving part 18c Receiving part 22 Air nozzle 23 Air injection

Claims (3)

[Claims] 1. A terminal treatment method for a vehicle interior material comprising an interior base material and a skin material bonded to a surface side of the interior base material, wherein the terminal of the interior material is cut by a heating means,
A terminal treatment method for a vehicular interior material, wherein the cut surface of the terminal of the interior material is pressed and crushed from the skin material side before cooling. 2. A terminal treatment method for a vehicle interior material comprising an interior base material and a skin material bonded to a surface side of the interior base material, wherein the terminal of the interior material is laser-cut, and A terminal treatment method for an interior material for a vehicle, wherein a cut surface of the terminal is pressed and crushed by a pressing bar from the skin material side before cooling. 3. A terminal treatment method for a vehicular interior material comprising an interior base material and a skin material bonded to a surface side of the interior base material, wherein a terminal of the interior material is cut by laser. A terminal treatment method for an interior material for a vehicle, wherein the cut surface of the terminal is pressed and crushed by air jet from the skin material side before cooling.