JPH0540059U - Air bag - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to unify the parts management means of each component of the airbag device by enabling the terminal input of the components management information using the optical mark reading device even in the airbag. Provide airbags. [Structure] When two pieces 2 and 3 formed by cutting a woven material into a predetermined shape are sewn and joined, a bar code 5 recorded on the outer peripheral edge of the sewn portion in an optically readable manner. The printed label pieces 4 are sewn at the same time to form an airbag including a bag body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement in an airbag used in an airbag device that protects an occupant from an impact with an airbag that is rapidly inflated by gas when a vehicle or the like collides.

[0002]

[Prior Art]

 In recent years, as a cushioning system that supports a seat belt device for safely holding a vehicle occupant in a seat, in the event of a collision, the occupant's body, especially the head and chest, is received by a balloon-shaped airbag and then the interior Air bags have been put into practical use by gradually releasing these gases, thereby creating a buffer stroke and reducing the impact force on the human body.

[0003] Such an airbag device includes, for example, a steering pad, a center pad, a folded airbag, a module including an inflator (gas generator), and the like. The inflator is ignited by the electric signal from the air bag, and the air bag is instantly inflated by the gas which is burned rapidly. Therefore, when the airbag device is activated, the upper wall of the center pad is broken by the inflation pressure of the airbag, and the airbag is expanded from the broken opening so that the airbag can largely inflate above the center pad. Further, when the module of the airbag device is arranged on the instrument panel, when the airbag device is activated, the airbag cover is broken or expanded due to the inflation pressure of the airbag and expanded.

By the way, component management information such as a manufacturer name, a product name, and a manufacturing number may be given to each component of the airbag device because of necessity of quality control and inventory control at the time of assembling and manufacturing. Has been done. In particular, recently, it is general to use an optical mark reading device capable of directly inputting these component management information into an electronic computer. Therefore, the component management information is printed on each component as a bar code which is an optical mark. ing. That is, the barcode printed on each component is optically read by a barcode reader to save labor for inputting the component management information into the terminal.

[0005]

[Problems to be solved by the device]

 However, in the case of the airbag among the respective components of the airbag device, the component management information as described above is not printed as a barcode, but characters such as the serial number are directly printed on the airbag surface. .. This is because the yarn of the fabric used for the airbag is a relatively thick yarn with a diameter of 840 denier to 420 denier, so the weave becomes rough and the airbag surface has irregularities. This is because even if a bar code is printed on the front surface, reliable reading with a bar code reader cannot be prevented.

That is, as for the airbag, there is a problem in that it is not possible to input the terminal of the component management information using the optical mark reading device like other components, and it is impossible to unify the management means of each component. Therefore, such ununiformity of management means causes complication of parts management, and also causes an increase in manufacturing cost of the airbag device. Therefore, an object of the present invention is to solve the above-mentioned problems, and even in an airbag, it is possible to input a terminal for component management information using an optical mark reading device, thereby unifying the component management means of each component of the airbag device. To provide a good air bag that can achieve

[0007]

[Means for Solving the Problems]

 The above object of the present invention comprises a bag body formed by joining at least two cut pieces formed by cutting a woven fabric into a predetermined shape, and inflates in the event of a vehicle collision to protect an occupant from the impact. An air bag of an air bag device, characterized in that a label strip printed with an optical mark in which component management information is recorded in a photometrically readable manner is attached to the outside of the air bag. To be achieved.

[0008]

[Action]

 According to this invention, since the component management information by the optically readable optical mark can be displayed on the airbag, the airbag can also be provided with an optical mark reading device such as other components of the airbag device. The parts management information used can be input to the terminal.

[0009]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The driver-side airbag 1 shown in FIG. 1 has a cutting piece 2 used on the front side (the human body side when mounted in the vehicle) and a cutting piece 3 used on the back side (the vehicle body side when mounting in the vehicle). It is a sewn bag body, and the label piece 4 is attached to the outer peripheral portion thereof.

The cut pieces 2 and 3 are obtained by applying a synthetic rubber coating to a woven fabric composed of warps and wefts made of synthetic fiber filaments, and then cutting the woven fabric into a circular shape. An inflator mounting opening 7 for introducing an inflation gas is provided in the center of the cutting piece 3, and an inflator mounting hole 8 and an exhaust hole 9 are provided around the outer periphery of the cutting piece 3, and an annular shape is formed around the inflator mounting opening 7. The hem cloth 10 of is sewn on.

As shown in FIGS. 2 and 3, when the cut pieces 2 and 3 are overlapped and the outer peripheral portion thereof is sewn with a sewing thread 6, one side of the label piece 4 is cut. The label piece 4 is sewn to the driver-seat airbag 1 by sewing at the same time in a state of being sandwiched between the label piece 4 and the cutting piece 3. The label piece 4 is pre-printed with part management information such as the manufacturer's name, product name, and serial number as a bar code 5 that is an optical mark, and the bar code 5 is printed when the airbag is completed. The label piece 4 is sewn so that it can be recognized from the outside.

Since the label piece 4 is a cloth piece made of a thread having a relatively small diameter, the barcode 5 printed on the label piece 4 can be reliably read by a barcode reader. In other words, for the above-mentioned airbag, since the terminal management information can be input to the terminal using the optical mark reading device like the other components of the airbag device, it is possible to unify the management means of each component of the airbag device. Become. Therefore, the efficiency of component management is improved, and the manufacturing cost of the airbag device can be reduced.

Next, FIGS. 4 and 5 are a plan view and an enlarged view of a main part of a driver airbag 11 according to another embodiment of the present invention. The driver's seat airbag 11, like the driver's seat airbag 1, is a bag body in which the cut piece 2 and the cut piece 3 are overlapped and sewn, and the label piece 12 is provided on the outer surface thereof. Is installed. The same components as those of the driver airbag 1 are designated by the same reference numerals and the description thereof will be omitted.

The label piece 11 is pre-printed with part management information such as the manufacturer name, product name, and serial number as a bar code 5, and the label piece 11 is sewn with sewing threads 13 at both ends thereof. As a result, it is sewn on the surface of the cut piece 2. Since the label piece 11 is a cloth piece made of a thread having a relatively small diameter, like the label piece 4, the bar code 5 printed on the label piece 11 can be reliably read by a bar code reader. ..

Further, although the label piece 11 is sewn with the sewing thread 13, it may be attached with an adhesive. Incidentally, the shape of the airbag is not limited to the shape of the above-described embodiment, and it goes without saying that various shapes can be adopted. Further, in each of the above-mentioned embodiments, the airbag for the driver's seat was described. It goes without saying that it can be applied to passenger airbags. Further, the optical mark is not limited to the above bar code, and other optical mark means can be used.

[0016]

[Effects of the Invention] That is, according to the present invention, since component management information by optically readable optical marks can be displayed on an airbag, other components of the airbag device can also be provided for the airbag. It is possible to input terminals for component management information using an optical mark reading device such as the one described above.

Therefore, it is possible to provide a good airbag capable of unifying the component management means of each component of the airbag device and improving the quality of the airbag device and reducing the manufacturing cost.

[Brief description of drawings]

FIG. 1 is a plan view of an airbag according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of the airbag shown in FIG.

3 is an enlarged cross-sectional view taken along the line AA of the airbag shown in FIG.

FIG. 4 is a plan view of an airbag according to another embodiment of the present invention.

5 is an enlarged view of a main part of the airbag shown in FIG.

[Explanation of symbols]

 1 Airbag for driver 2 Cut piece 3 Cut piece 4 Label piece 5 Bar code 6 Sewing thread 7 Inflator attachment opening 8 Inflator attachment hole 9 Exhaust hole 10 Edge cloth 11 Driver's airbag 12 Label piece 13 Sewing thread

Claims (1)

[Scope of utility model registration request] 1. An airbag device comprising a bag body formed by joining at least two cut pieces formed by cutting a woven fabric into a predetermined shape, and expanding when a vehicle collides to protect an occupant from the impact. 2. An airbag according to claim 1, wherein a label piece printed with an optical mark in which component management information is recorded so as to be optically readable is attached to the outside of the airbag.