CN111806386B

CN111806386B - Folding method of air bag of automobile side safety air bag

Info

Publication number: CN111806386B
Application number: CN202010637172.5A
Authority: CN
Inventors: 晏小龙; 郝玮; 范森; 胡亚娟
Original assignee: Shanghai East Joy Long Motor Airbag Co ltd
Current assignee: Shanghai East Joy Long Motor Airbag Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2022-08-23
Anticipated expiration: 2040-07-03
Also published as: CN111806386A

Abstract

The invention discloses a folding method of an automobile side safety airbag air bag, which can fill a lower inflation cavity with gas preferentially and quickly when a generator is detonated to generate gas, and fill the lower inflation cavity with a bulge bag of the lower cavity inflation cavity, so that the function of quickly lifting the arms of a dummy is realized, and the air bag structure can effectively protect the dummy under the working condition of a side column collision test and avoid the failure that the chest compression amount exceeds the standard because the dummy arms squeeze the chest.

Description

Folding method of air bag of automobile side safety air bag

Technical Field

The invention relates to the technical field of automobile safety airbags, in particular to a folding method of an airbag of an automobile side safety airbag.

Background

Since the vehicle body intrusion amount and the intrusion speed are high in the side pillar collision test, it is required that the vehicle body strength is sufficient firstly, and that the thickness of the side airbag is sufficiently large and the protection region is sufficiently large to cover the shoulder, chest, abdomen, and pelvis. However, during the actual side column crash test, it often occurs that the dummy's arms squeeze the chest, resulting in an excessive chest compression. Therefore, the applicant invents a novel folding method of the side airbag bag of the automobile, so that the side airbag bag can quickly lift the dummy arm when being unfolded when a side column collision occurs, and the situation that the dummy arm extrudes the chest to cause the chest compression amount to exceed the standard is avoided.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the method for folding the side airbag of the automobile is provided for overcoming the defects of the prior art.

The technical problem to be solved by the invention can be realized by adopting the following technical scheme:

a folding method of an automobile side airbag comprises an airbag body, a separation strip and an air guide bag body, wherein the separation strip is arranged in the airbag body and divides an inflation cavity of the airbag body into an upper inflation cavity and a lower inflation cavity, the inflation volume of the upper inflation cavity is larger than that of the lower inflation cavity, a plurality of vent holes are formed in the separation strip at intervals, the air guide bag body is arranged in the lower inflation cavity of the airbag body, at least one air guide hole is formed in the air guide bag body, and at least one air exhaust hole is formed in the lower inflation cavity of the airbag body; the folding method comprises the following steps:

step S10, placing the sewed side airbag on a plane;

step S20, inserting the bulge with vent hole into the side airbag, and pulling back the bulge to align the edge of the bulge and the edge of the side airbag;

step S30, folding the right upper protruding portion of the side airbag in the left direction along the first longitudinal folding line;

step S40, folding the upper half shoulder area of the side airbag downward along the first transverse folding line;

step S50, reversely folding the folded upper half shoulder area part upwards along the second transverse folding line;

step S60, folding the lower pelvis region of the side airbag bag upward along a third transverse fold line;

step S70, reversely folding the folded lower pelvis region downward along the fourth transverse folding line to complete the primary folding;

step S80, inverting the air bag of the side airbag after the primary folding and placing the air bag on a plane;

step S90, folding the right side portion of the preliminarily folded side airbag in the left direction along the second longitudinal folding line;

and step S100, folding the right part of the side airbag along a third longitudinal folding line in the left direction to finish final folding.

Due to the adoption of the scheme of the invention, the invention has the beneficial effects that: the folding method of the invention ensures that the generator explodes to generate gas on the premise of ensuring the effective expansion of the air bag of the side safety air bag, and the folding method plays a good role in guiding a large amount of gas generated by the generator, so that the gas can be effectively guided to inflate rapidly and preferentially towards the direction of the dummy arm, the air bag expands towards the side of the dummy passenger and is filled with the gas, and the function of rapidly lifting the dummy arm is realized. Therefore, under the working condition of a side column collision test, the air bag structure can effectively protect the dummy through the specific folding mode of the air bag, and the phenomenon that the chest compression amount exceeds the standard due to the fact that the dummy extrudes the chest through the arms is avoided. Meanwhile, the invention has good protection effect on a dummy passenger, and can successfully achieve the display effect when the airbag of the side safety airbag is unfolded, in particular to the protection effect on the chest of the dummy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the structure of the side airbag package of the present invention.

Fig. 2-14 are schematic views of the folds of the side airbag pockets of the present invention.

FIG. 15 is a schematic view of the operation of the side airbag package of the present invention.

Fig. 16 is a schematic view showing the protective effect of the side airbag of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.

Referring to fig. 1, there is shown a side airbag 100 of the present invention, which includes an airbag body 110, a division bar 120, and an air guide bag body 130, the division bar 120 being disposed in the airbag body 110 and dividing an inflation chamber of the airbag body 110 into an upper inflation chamber 110a and a lower inflation chamber 110b, an inflation volume of the upper inflation chamber 110a being greater than an inflation volume of the lower inflation chamber 110b, four vent holes 121 being spaced apart from each other on the division bar 120, the air guide bag body 130 being disposed in the lower inflation chamber 110b of the airbag body 110, two air guide holes 131 being spaced apart from each other on the air guide bag body 130, and an exhaust hole 111 being disposed on the lower inflation chamber 110b of the airbag body 110. It should be noted that: the number of the vent holes 121 on the separation strip 120 and the number of the air guide holes 131 on the air guide bag body 130 are not limited to the number in the embodiment, and the number, the shape and the size of the vent holes can be designed according to the actual conditions of the vehicle type, so as to achieve the optimal protection effect. In addition, two bolt positioning holes 112 for mounting the gas generator are provided in the region of the rear surface of the air bag body 110 located in the lower inflating chamber 110 b.

The folding method of the airbag of the automobile side airbag comprises the following steps:

in step S10, referring to fig. 2, the sewn side airbag 100 is placed on a plane with the side of the side airbag 100 where the bolt positioning hole 112 is opened facing downward.

Step S20, inserting the protruding portion 101 with the vent hole 111 in the side airbag bag 100 into the side airbag bag 100, i.e., into the direction a, as shown in fig. 3; then, the bulging portion 101 inserted into the interior is pulled back toward B so that the edge of the bulging portion 101 coincides in alignment with the edge of the side airbag bag 100, i.e., assuming that the

lines

201, 202 coincide, as shown in fig. 4.

In step S30, referring to fig. 4, the upper right projecting portion 102 of the side airbag bag 100 is folded in the left direction, i.e., the C direction, along the longitudinal folding line 301, as shown in fig. 5.

In step S40, referring to fig. 5, the upper shoulder region part 103 of the side airbag bag 100 is folded down along the lateral fold line 302, as shown in fig. 6.

Step S50, referring to fig. 6, the folded upper half shoulder region part 103 is folded back in the reverse direction upward, i.e., D direction, along the transverse fold line 303, as shown in fig. 7; steps S40 and S50 fold the upper half shoulder region portion 103 of the side airbag bag 100 in a Z-fold manner.

In step S60, referring to fig. 7, the lower pelvis region portion 104 of the side airbag bag 100 is folded upward along the lateral fold line 304, as shown in fig. 8.

Step S70, referring to fig. 8, turning the folded lower pelvic region 104 in the opposite direction, i.e., downward toward direction E, along the transverse fold line 305, completing the preliminary folding, as shown in fig. 9; step S60 and step S70 fold the lower pelvis region 104 of the side airbag 100 in a Z-fold manner. Fig. 10 is a simplified view of the side airbag package 100 in the F direction.

In step S80, referring to fig. 11, the preliminarily folded side airbag 100 is inverted and placed on a plane with the side of the side airbag 100 where the bolt positioning hole 112 is opened facing upward.

In step S90, referring to fig. 11, the right side portion of the preliminarily folded side airbag 100 is folded along the longitudinal folding line 306 in the left direction, i.e., in the direction of G, as shown in fig. 12.

In step S100, referring to fig. 12, the right side portion of the side airbag is folded in the left direction, i.e., in the H direction, along the longitudinal folding line 307, and the final folding is completed, as shown in fig. 13. Fig. 14 is a simplified view of the folded side airbag 100 in the direction I.

Referring to fig. 15, when the side airbag 100 is burst to act, a large amount of high-pressure gas generated from the gas generator enters the gas guide pocket 130 and inflates the lower inflation chamber 110b along the two gas guide holes 131, so that the right protrusion 101 (corresponding to a position under the dummy arm) of the lower inflation chamber 110b of the bag body 110 rapidly deploys toward the lower side of the dummy arm, thereby functioning to preferentially and rapidly lift the dummy arm, as shown in fig. 15 and 16; gas continues to fill the upper inflation chamber 110a of the bag body 110 along the four vent holes 121 until the side airbag bag 100 is fully inflated to the open condition. By adopting the folding method, the side airbag 100 can be preferentially unfolded to form the right protruding part 101 of the lower inflating chamber 110b (corresponding to the position of the dummy arm), so that the dummy arm can be quickly lifted, the situation that the dummy arm presses the chest to cause the chest compression amount to exceed the standard is effectively avoided, and the injury is reduced.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The folding method of the air bag of the automobile side safety air bag is characterized in that the air bag of the side safety air bag comprises an air bag body, a separation strip and an air guide bag body, wherein the separation strip is arranged in the air bag body and divides an inflating cavity of the air bag body into an upper inflating cavity and a lower inflating cavity, the inflating volume of the upper inflating cavity is larger than that of the lower inflating cavity, a plurality of vent holes are formed in the separation strip at intervals, the air guide bag body is arranged in the lower inflating cavity of the air bag body, at least one air guide hole is formed in the air guide bag body, and at least one air exhaust hole is formed in the lower inflating cavity of the air bag body; the folding method comprises the following steps:

step S10, placing the sewed side airbag on a plane;

step S20, inserting the protruding part with the vent hole into the side airbag, and pulling back the protruding part to align and overlap the edge of the protruding part and the edge of the side airbag;

step S50, reversely folding the folded upper half shoulder area upward along the second transverse folding line;

step S70, reversely folding the folded lower half part of the pelvis area downwards along a fourth transverse folding line to finish the primary folding;

step S100, folding the right part of the airbag of the side airbag along a third longitudinal folding line in the left direction to finish final folding;

when the air bag point of the side safety air bag is exploded to generate action, a large amount of high-pressure gas generated by the gas generator enters the air guide bag body and is inflated to the lower inflation cavity along the air guide hole on the air guide bag body, so that the protruding part of the lower inflation cavity of the air bag body is rapidly unfolded towards the lower part of the arm of the dummy, the action of preferentially and rapidly lifting the arm of the dummy is further realized, and the gas is continuously filled into the upper inflation cavity of the air bag body along the vent hole on the partition strip until the air bag of the side safety air bag is completely filled in the opened state.