JPH07309200A - Vehicle seat belt device webbing manufacturing method - Google Patents

Abstract

(57) [Abstract] [Purpose] Manufacturing of webbing used in vehicle seatbelt devices, etc., where there is no step at the label sewing part when winding and drawing out the webbing, and the number of parts does not increase. Get the way. [Structure] In a method for manufacturing a webbing 2 for a vehicle seat belt device in which necessary item 3 is displayed, which is drawn out from and retracted from a retractor of a vehicle seat belt device, the required item 3 is a high energy ray curable ink. Printing, and then the ink is irradiated with high energy rays to be cured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a standard number of a webbing used in a vehicle seat belt device and a necessary item indicating portion of a manufacturer.

[0002]

2. Description of the Related Art In general, webbing in a vehicle seat belt device or the like is required to display necessary information such as a name of a standard, a manufacturer's name, a year of manufacture, etc., at an appropriate place. There is. Therefore, in the conventional device, as shown in FIG. 2 and FIG. 3 which is an enlarged plan view of the main part from the direction A in FIG. 2, the name of the standard, the manufacturer's name, the year of manufacture, etc. are displayed. The thing was printed on the label 1 made of cloth, and the label was sewn on the webbing 2.

[0003]

However, in the case of a seat belt using a webbing in which such a label is sewn, when the webbing is wound and pulled out, a step is generated in the label sewn portion, which causes a rugged feeling and a different feeling. Sound was occurring. Further, since the label is sewn on the webbing, there are disadvantages such as an increase in the number of parts and an increase in the number of manufacturing processes.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and in order to achieve such an object, the vehicle seat belt device can be pulled out from and retracted from a retractor. In a method for manufacturing a webbing for a vehicle seat belt device displaying necessary items, it is possible to print the necessary items using a high energy ray curable ink and then irradiate the ink with high energy rays to cure the ink. A method for manufacturing a webbing of a characteristic vehicle seat belt device is obtained.

[0005]

In the webbing of the vehicle seat belt device, the standard number, the manufacturer's requirements, etc. are printed using the high energy ray-curable ink, so that it is not necessary to sew a label describing the requirements. Got well. Also, by using high energy ray curable ink, especially UV curable ink, the time required for drying the ink can be shortened, and since heating for drying is not necessary, the webbing is not deteriorated by heat and the webbing is highly efficient. It is possible to print on.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The webbing 2 of the seat belt device is woven with a needle loom or the like using a synthetic fiber such as nylon or polyester as a raw yarn, and after dyeing, the surface is treated with an oil agent to reduce friction resistance to a predetermined length. It is cut. A high energy ray curable ink is used for the webbing 2, and necessary information such as a standard number, a standard name, a year of manufacture, and a manufacturer is printed. Examples of high energy ray curable inks include electron beam curable inks and photocurable inks, with ultraviolet curable inks being particularly preferred. The ultraviolet curable ink is formed by adding a halogenated hydrocarbon, a peroxide, a curing accelerator, an organic sulfur compound, etc. to an oil varnish. As this ultraviolet curable ink, for example, "Dai Cure" (trade name, manufactured by Dainippon Chemical Industry Co., Ltd.) is used.

In printing on a webbing, since the unevenness of the surface of the webbing is severe, it is preferable to print necessary items by a pad (octopus) printing method. When the necessary items are printed by the pad printing method using "Dai Cure" (trade name, manufactured by Dainippon Ink and Chemicals, Inc.) as the UV curable ink, the thickness of the ink can be appropriately selected, but usually about It is about 1 to 10 μm (micrometer), preferably about 5 μm (micrometer). Next, the printed portion of the webbing is exposed to ultraviolet rays to cure and dry the ultraviolet curable ink. Normal output 5 as light source
Using a mercury lamp of 00W to 2KW, keep the distance between the webbing and the light source within 200 mm, and keep the ultraviolet rays from 3 to 10
Irradiation for 2 seconds achieves curing and drying of the ink.

From the viewpoint of labor saving and high production efficiency, it is preferable to carry out the above-mentioned printing and curing steps as a continuous step by means of a conveyor equipped with a large number of jigs for fixing the webbing. Since the high energy ray curable ink is quick-drying, it is suitable for carrying out the printing and curing steps as the above continuous steps.
The webbing is usually cut into a predetermined length and then printed one by one, but it is necessary for a long continuous webbing material woven by a needle loom etc. at a predetermined interval corresponding to the length of each webbing. It is also possible to print the matter and then cut it.

Next, with reference to FIG. 4, a manufacturing process of the webbing in which the necessary matter 3 is printed with the ultraviolet curable ink will be described. A plurality of webbings 2 cut into a predetermined length are fixed on a jig 5 movably attached to a conveyor 4. Then, the conveyor is moved, and when the jig 5 has moved to just below the pad printing machine 6, the conveyor is stopped. The pad printing machine 6 has a metal concave plate (not shown) corresponding to the necessary items to be printed, and "Dai" is provided on the opposite side of the concave plate.
After the "Cure" is filled and excess ink is wiped off, the elastic pad 7 is pressure-bonded to the plate surface to transfer the ink to the surface of the elastic pad. After that, the pad 7 is pressed against the webbing 2 to print necessary items on the webbing 2. At this time, the thickness of the ink is about 5 micrometers. The jig 5 then passes through the ultraviolet curing chamber 8 and cures the ink printed on the webbing 2. The ultraviolet curing chamber 8 is equipped with a mercury lamp with an output of 1 KW as a light source 9, the distance between the webbing 2 and the light source is 100 mm, and the irradiation time is 7 seconds.

[0010]

[Effect] Since the present invention is configured as described above,
The webbing produced according to the present invention eliminates steps on the webbing by directly printing the necessary items that were conventionally displayed on a cloth label, and the webbing has a rugged feeling when winding or withdrawing, or an abnormal sound. Is eliminated. Further, since the label can be eliminated and sewing can be omitted, the number of webbing components can be reduced and the manufacturing process can be reduced. Also, by using high energy ray curable ink, especially UV curable ink, the time required for drying the ink can be shortened, and since heating for drying is not necessary, the webbing is not deteriorated by heat and the webbing is highly efficient. It is possible to print on.

[Brief description of drawings]

FIG. 1 is a plan view of a webbing printed according to the present invention.

FIG. 2 is a side view of a seat belt device having a webbing according to a conventional example.

FIG. 3 is an enlarged plan view of an essential part of a webbing according to a conventional example as viewed from the direction A in FIG.

FIG. 4 is a schematic front view of a printing and curing device for ultraviolet curable ink shown in an embodiment of the present invention.

[Explanation of symbols]

 1 Label 2 Webbing 3 Necessary Items 4 Conveyor 5 Jig 6 Pad Printing Machine 7 Elastic Pad 8 Curing Chamber 9 Light Source

Claims (3)

[Claims] 1. A method for manufacturing a webbing for a vehicle seatbelt device in which necessary items are displayed, which is pulled out from and retracted from a retractor of the vehicle seatbelt device, wherein the high energy ray curable ink is used for the required items. A method of manufacturing a webbing for a vehicle seat belt device, comprising: 2. The method of manufacturing a webbing for a vehicle seat belt device according to claim 1, wherein the high energy ray curable ink is an ultraviolet curable ink and is irradiated with ultraviolet rays to be cured. 3. The ultraviolet curable ink is 1-10.
Printed to a thickness of μm and output as an ultraviolet ray source 500W ~
The method for manufacturing a webbing for a vehicle seat belt device according to claim 2, wherein a 2 kW mercury lamp is used and ultraviolet rays are irradiated for 3 to 10 seconds at a distance between the webbing and the mercury lamp of 200 mm or less.