CN115320532A - Airbag folding method and airbag device - Google Patents

Airbag folding method and airbag device Download PDF

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Publication number
CN115320532A
CN115320532A CN202211047664.4A CN202211047664A CN115320532A CN 115320532 A CN115320532 A CN 115320532A CN 202211047664 A CN202211047664 A CN 202211047664A CN 115320532 A CN115320532 A CN 115320532A
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China
Prior art keywords
airbag
region
protection
head
area
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CN202211047664.4A
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Chinese (zh)
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CN115320532B (en
Inventor
徐侯通
李�浩
薛乐乐
夏念沧
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Ningbo Junsheng Automobile Safety System Co ltd
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Ningbo Junsheng Automobile Safety System Co ltd
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Priority to CN202211047664.4A priority Critical patent/CN115320532B/en
Publication of CN115320532A publication Critical patent/CN115320532A/en
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Publication of CN115320532B publication Critical patent/CN115320532B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23Inflatable members
    • B60R21/237Inflatable members characterised by the way they are folded
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23Inflatable members
    • B60R21/237Inflatable members characterised by the way they are folded
    • B60R2021/2375Folding devices

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

The application provides an airbag folding method and an airbag device, which are applied to the technical field of automobile passive safety, wherein the airbag folding method comprises the following steps: stacking the head and neck protection areas of the air bags, and enabling the air bags to be tiled in a two-dimensional plane; folding the chest and abdomen protection area backwards to enable the upper edge of the chest and abdomen protection area to be aligned with the upper edge of the instrument board matching area; after the folded air bag is turned over, the overlapped part of the head and neck protection area and the chest and abdomen protection area is folded forwards; sewing at least one pre-sewing line in the overlapped region of the head and neck protection region, the chest and abdomen protection region and the wind shield protection region so as to realize graded unfolding in the unfolding process of the air bag; the airbag is pressed into the airbag housing. The folding method is used for shaping the copilot safety airbag before the copilot safety airbag is unfolded, all parts of the airbag are unfolded in a grading mode in the unfolding process, and the bottom of the airbag is provided with a concave part matched with the automobile display screen, so that the automobile display screen can be effectively protected in the unfolding process.

Description

Airbag folding method and airbag device
Technical Field
The application relates to the technical field of passive safety of automobiles, in particular to an airbag folding method and an airbag device.
Background
The automobile safety air bag is an important protection device in the passive safety protection of the automobile, and the copilot safety air bag basically becomes the standard of the automobile. When the assistant driving safety air bag works, the air bag is inflated by the air inflation device, and the air bag is unfolded after being inflated, so that the aim of protecting passengers is fulfilled.
Now, more and more passenger cars require to install the display screen additional in front row copilot side, and after the copilot air bag expandes, the lower part is equipped with the concave type and has become very commonly used and effective, but, because the molding of copilot air bag is stereotyped after the air bag expandes, there is damaged risk in the display screen at the air bag in-process that expandes.
Therefore, a new solution for a passenger airbag is needed.
Disclosure of Invention
In view of this, embodiments of the present disclosure provide an airbag folding method and an airbag device to solve the technical problem that a display screen of an automobile mounted on a passenger side is damaged during a deployment process of a passenger airbag.
The embodiment of the specification provides the following technical scheme:
an embodiment of the present specification provides an airbag folding method, including:
step 1: stacking the head and neck protection areas of the air bags, and flatly paving the air bags in a two-dimensional plane;
step 2: the chest and abdomen protection area is folded backwards, so that the upper edge of the chest and abdomen protection area is aligned with the upper edge of the instrument board matching area;
and step 3: turning over the folded air bag in the step 2, and folding forward the overlapped part of the head and neck protection area and the chest and abdomen protection area;
and 4, step 4: sewing at least one pre-sewing line in the overlapped region of the head and neck protection region, the chest and abdomen protection region and the wind shield protection region so as to ensure that the wind shield protection region, the head and neck protection region and the chest protection region are developed in a grading way in the air bag development process;
and 5: the airbag is pressed into the airbag housing.
Preferably, a gas generator mounting hole and a gas exhaust hole are provided in the windshield protection area.
Preferably, step 5, comprises: a folded region and an unfolded region of the airbag are pressed into the airbag housing, the folded region being a region of the airbag where folding is performed, and the unfolded region being a region of the airbag where folding is not performed.
Preferably, the folding forward of the overlapped part of the head and neck protection region and the thoracoabdominal protection region in step 3 includes: the thoracoabdominal protection zone is folded forward with the upper edge of the thoracoabdominal protection zone aligned with the upper edge of the non-folded zone.
Preferably, the height of the unfolded region is determined according to the size of the airbag housing.
Preferably, a vent hole is provided in a non-occupant protection region of the airbag, and the occupant protection region refers to a region of the airbag that comes into contact with an occupant after deployment.
Preferably, the pre-stitching passes through the overlap region.
Preferably, the head and neck protection region and the thoraco-abdominal protection region are fully or partially folded.
Embodiments of the present disclosure also provide an airbag device, including: an air bag, a gas generator and an air bag housing; the air bag comprises a windshield protection area, a head and neck protection area, a chest and abdomen protection area and a flank part, the air bag is folded by adopting the safety air bag folding method and is extruded into the air bag shell, and the gas generator is used for inflating the safety air bag.
Preferably, in the process of unfolding the safety airbag, the gas generator firstly inflates the windshield protection area to drive the head and neck protection area, the chest and abdomen protection area is thrown out before the side wing part is unfolded, the chest and abdomen protection area and the side wing part are unfolded while the front side wing part passes over the automobile display screen, the pre-stitching line penetrates through the safety airbag in the process of unfolding, the windshield protection area, the head and neck protection area and the chest and abdomen protection area are unfolded in a grading mode, and the finally unfolded airbag is in the shape of an airbag, the lower portion of the finally unfolded airbag is provided with a concave portion, so that the automobile display screen is avoided.
Compared with the prior art, the beneficial effects that can be achieved by the at least one technical scheme adopted by the embodiment of the specification at least comprise: by adopting the airbag folding method provided by the embodiment of the specification, all parts of the airbag at the copilot side are expanded in a grading manner in the expansion process, the airbag is shaped by the folding method before being expanded, and the bottom of the airbag is provided with the concave part matched with the automobile display screen, so that the automobile display screen arranged at the copilot side can be effectively protected in the expansion process, the expansion performance of the airbag is met, the impact force of the airbag in the expansion process is reduced, and the airbag plays a good role in protecting passengers and parts in an automobile.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a head and neck protection region stack of an airbag according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a thoracoabdominal protection region of an airbag according to an embodiment of the present disclosure after being folded;
fig. 3 is a schematic structural diagram of an airbag according to an embodiment of the present disclosure after folding a portion where a head and neck protection region and a chest and abdomen protection region overlap;
fig. 4 is a schematic structural diagram of an airbag with a pre-sewn seam according to an embodiment of the present application.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The following embodiments of the present application are described by specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number and aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details.
The folding method of the automobile safety airbag has great influence on the unfolding effect, and the airbag of the safety airbag can achieve better protection effect only by being tightly attached to an instrument panel and a display screen. However, the existing folding method of the airbag for the passenger cannot well solve the technical problem that the airbag may damage the display screen in the unfolding process after the display screen is arranged at the passenger seat.
Based on this, the embodiment of the present specification proposes a processing scheme: a plurality of areas of the copilot air bag are folded according to the folding mode of the embodiment of the specification, when the air bag is unfolded, the areas are unfolded in a grading mode, the damage to an automobile display screen in the unfolding process of the air bag can be effectively avoided, and the bottom of the air bag is provided with a concave part matched with the automobile display screen, so that the display screen can be well protected.
The technical solutions provided by the embodiments of the present application are described below with reference to the accompanying drawings.
An embodiment of the present specification provides an airbag folding method, including:
step 1: the head and neck protection areas of the air bags are stacked, and the air bags are flatly laid in a two-dimensional plane.
Specifically, as shown in fig. 1, the head and neck protection region of the airbag is stacked with the chest and abdomen protection region and the windshield protection region of the airbag so that the airbag is laid flat in a two-dimensional plane, and the airbag of the airbag is in a two-dimensional state of being laid flat. In the embodiments of the present description it is considered that the front of the airbag is shown in fig. 1.
Wherein the stacked shape is as shown in fig. 1, the side wing portions of the airbag are laid over the neck and windshield protection regions, and the upper edges of the side wing portions are aligned with the upper edges of the neck and windshield protection regions, and the lower edges of the side wing portions are aligned with the lower edges of the windshield protection regions. After the head and neck protection regions are stacked, the head and neck protection regions are distributed inside the chest and abdomen protection regions, the lower edges of the head and neck protection regions coincide with the lower edges of the chest and abdomen protection regions, and the upper edges of the head and neck protection regions are located inside the chest and abdomen protection regions and are aligned with the upper edges of the side wings.
Step 2: the thoracoabdominal protection zone is folded back so that the upper edge of the thoracoabdominal protection zone is aligned with the upper edge of the instrument panel mating zone.
Specifically, as shown in fig. 2, after the airbag is stacked on the two-dimensional plane, the thoracoabdominal protection region is folded back so that the upper edge of the thoracoabdominal protection region is aligned with the upper edge of the instrument panel fitting region, and the airbag is folded back so that the front face of the airbag faces rearward and the back face thereof faces upward. Wherein the dashboard engaging area is located on the back of the windshield protection area.
Wherein, be provided with gas generator mounting hole and exhaust hole in the windscreen protection region, the exhaust hole distributes in the both sides of gas generator mounting hole. Also, the vent hole is provided on a non-occupant protection region of the airbag, which is a region that is in contact with an occupant after the airbag is deployed, and the occupant protection region can protect the head of the occupant during the deployment of the airbag.
And step 3: and (3) after the folded air bag in the step (2) is turned over, folding forward the overlapped part of the head and neck protection area and the chest and abdomen protection area.
Specifically, as shown in fig. 3, after the thoracoabdominal protection region is folded back in step 2, the airbag is turned over so that the back surface of the airbag faces upward and the front surface faces downward, and then the overlapping portion of the head and neck protection region and the thoracoabdominal protection region is folded forward along the lower edge of the head and neck protection region.
In the embodiments of the present specification, there is no limitation on the folding manner of the head and neck protection region and the thoraco-abdominal protection region, and the head and neck protection region and the thoraco-abdominal protection region are all or partially folded, for example.
Further, in the embodiment of the present specification, folding forward the overlapping portion of the head and neck protection region and the thoracoabdominal protection region includes: the thoracoabdominal protection zone is folded forward with the upper edge of the thoracoabdominal protection zone aligned with the upper edge of the non-folded zone.
Here, the folding region refers to a portion which is not folded in the embodiment of the present specification.
And 4, step 4: at least one pre-sewing line is sewn in the overlapped area of the head and neck protection area, the chest and abdomen protection area and the wind shield protection area, so that the wind shield protection area, the head and neck protection area and the chest protection area are developed in a grading way in the air bag development process.
Specifically, as shown in fig. 4, one or more pre-stitches are sewn at any position within the range of the outer surface of the multi-layer folded region, and the pre-stitches penetrate all the folded layers from top to bottom, wherein the multi-layer folded region is an overlapped region of the head and neck protection region, the thoracico-abdominal protection region and the windshield protection region during the folding process, and the airbag can maintain the folded state and can be gradually unfolded from the windshield protection region, the head and neck protection region and the thoracic protection region during the unfolding process of the airbag by arranging the pre-stitches.
In the embodiments of the present description the pre-stitching lines extend through the overlap region.
And 5: the airbag is pressed into the airbag housing.
Specifically, step 5 includes: the folded region of the airbag, which is the region in which the airbag is folded, and the unfolded region of the airbag, which is the region in which the airbag is not folded, are pressed into the airbag housing.
Wherein the height of the non-folded region is determined according to the size of the airbag housing.
Embodiments of the present specification also provide an airbag device, including: an air bag, a gas generator and an air bag housing; the air bag comprises a windshield protection area, a head and neck protection area, a chest and abdomen protection area and a flank part, the air bag is folded by adopting the safety air bag folding method and is extruded into the air bag shell, and the gas generator is used for inflating the safety air bag.
Wherein, at air bag expansion in-process, gas generator aerifys windscreen protection area earlier, drive neck portion protection area, throw away chest abdomen protection area before not expanding flank portion, expand chest abdomen protection area and flank portion when crossing the car display screen, the suture runs through in air bag expansion in-process in advance, to windscreen protection area, hierarchical the expansion is carried out in neck portion protection area and chest abdomen protection area, the gasbag shape of final expansion, the lower part is equipped with the concave part, can avoid the car display screen.
The airbag folding method provided by the embodiment of the specification can ensure the safety of the airbag in the unfolding process and cross a display screen arranged on a passenger side.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the product embodiments described later, since they correspond to the method, the description is simple, and the relevant points can be referred to the partial description of the system embodiments.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A method of folding an airbag, comprising:
step 1: stacking the head and neck protection areas of the air bags to enable the air bags to be tiled in a two-dimensional plane;
step 2: folding the thorax and abdomen protection area backwards to enable the upper edge of the thorax and abdomen protection area to be aligned with the upper edge of the instrument board matching area;
and step 3: turning over the folded airbag in the step 2, and folding forward the overlapped part of the head and neck protection area and the chest and abdomen protection area;
and 4, step 4: sewing at least one pre-stitch line in the overlapping area of the head and neck protection area, the thoraco-abdominal protection area and the windshield protection area to allow for staged deployment of the windshield protection area, the head and neck protection area and the thorax protection area during deployment of the airbag;
and 5: the airbag is pressed into an airbag housing.
2. The airbag folding method according to claim 1, wherein a gas generator mounting hole and a vent hole are provided in the windshield protection region.
3. The airbag folding method according to claim 1, characterized in that the step 5 includes: pressing a folded region and an unfolded region of the airbag into the airbag housing, the folded region being a region of the airbag where folding is performed, and the unfolded region being a region of the airbag where folding is not performed.
4. The airbag folding method according to claim 3, wherein folding forward the overlapping portion of the head and neck protection region and the thoracoabdominal protection region in step 3 includes: folding the thoraco-abdominal protection area forward with an upper edge of the thoraco-abdominal protection area aligned with an upper edge of the non-folded area.
5. The airbag folding method according to claim 4, wherein a height of the non-folded region is determined according to a size of the airbag housing.
6. The airbag folding method according to any one of claims 1 to 5, characterized in that the vent hole is provided in a non-occupant protection region of the airbag, the occupant protection region being a region that is in contact with an occupant after deployment of the airbag.
7. The airbag folding method according to claim 1, characterized in that the pre-sewn lines penetrate the overlap region.
8. The airbag folding method according to claim 1, characterized in that the head and neck protection region and the thoracoabdominal protection region are folded in whole or in part.
9. An airbag device comprising: an air bag, a gas generator and an air bag housing; the airbag comprises a windshield protection area, a head and neck protection area, a chest and abdomen protection area and a flank protection area, and is characterized in that the airbag is folded by the airbag folding method according to any one of claims 1 to 8 and is extruded into the airbag shell, and the gas generator is used for inflating the airbag.
10. The airbag apparatus according to claim 9, wherein the inflator inflates the windshield protection region during deployment of the airbag, the head and neck protection region is driven, the chest and abdomen protection region is thrown out before the flank portion is not deployed, the chest and abdomen protection region and the flank portion are deployed while crossing a display screen of the vehicle, the pre-stitching line penetrates through the airbag during deployment, the windshield protection region, the head and neck protection region and the chest and abdomen protection region are deployed in stages, and a finally deployed airbag has a shape in which a concave portion is formed at a lower portion thereof so as to avoid the display screen of the vehicle.
CN202211047664.4A 2022-08-30 2022-08-30 Airbag folding method and airbag device Active CN115320532B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003175788A (en) * 2001-12-11 2003-06-24 Nippon Plast Co Ltd Air bag, air bag device and air bag folding method
JP2007099085A (en) * 2005-10-04 2007-04-19 Nippon Plast Co Ltd Airbag
US20120326421A1 (en) * 2011-06-24 2012-12-27 Akihiro Motomochi Airbag device and airbag folding method
CN103029674A (en) * 2011-10-10 2013-04-10 现代摩比斯株式会社 Passenger airbag cushion and method for folding passenger airbag cushion
JP2013203258A (en) * 2012-03-28 2013-10-07 Takata Corp Fold storing method for knee air bag and knee air bag device
JP2014019297A (en) * 2012-07-18 2014-02-03 Nippon Plast Co Ltd Air bag folding method and air bag
KR20140014924A (en) * 2012-07-27 2014-02-06 현대모비스 주식회사 Method for folding the air-bag cushion
CN113752977A (en) * 2020-06-03 2021-12-07 宁波均胜汽车安全系统有限公司 Method for folding an airbag and airbag arrangement

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003175788A (en) * 2001-12-11 2003-06-24 Nippon Plast Co Ltd Air bag, air bag device and air bag folding method
JP2007099085A (en) * 2005-10-04 2007-04-19 Nippon Plast Co Ltd Airbag
US20120326421A1 (en) * 2011-06-24 2012-12-27 Akihiro Motomochi Airbag device and airbag folding method
CN103029674A (en) * 2011-10-10 2013-04-10 现代摩比斯株式会社 Passenger airbag cushion and method for folding passenger airbag cushion
JP2013203258A (en) * 2012-03-28 2013-10-07 Takata Corp Fold storing method for knee air bag and knee air bag device
JP2014019297A (en) * 2012-07-18 2014-02-03 Nippon Plast Co Ltd Air bag folding method and air bag
KR20140014924A (en) * 2012-07-27 2014-02-06 현대모비스 주식회사 Method for folding the air-bag cushion
CN113752977A (en) * 2020-06-03 2021-12-07 宁波均胜汽车安全系统有限公司 Method for folding an airbag and airbag arrangement

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