KR102019291B1 - Silencer for Inflator - Google Patents

Abstract

The present invention relates to an inflator silencer, the inflator silencer according to the present invention is formed of a fabric, extending in a tubular shape with a space therein, the first portion (A) is the outlet 410 of the inflator 400 At least one blocking film 200 connected to the main body 100 having a discharge port 110 formed at the second portion B, formed of a fabric, and dividing the space of the main body 100 into a plurality of predetermined spaces 120. ), And a through hole 300 penetrating the blocking film 200 to allow fluid communication from the first portion A of the main body 100 to the second portion B of the main body 100.

Description

Silencer for Inflator {Silencer for Inflator}

The present invention relates to a silencer for an inflator.

In the modern society, the elderly population is rapidly increasing due to the aging, and accordingly, safety accidents of the elderly are raised as important social problems. Among these safety accidents, fall accidents occur frequently among the elderly and are one of the leading causes of death among the elderly. Due to a fall accident, pelvic and hip fractures occur most often, and in older people, surgery is difficult due to weak physical ability, and recovery is difficult even if the operation is successfully performed. In addition, secondary injury caused by physical shock when a fall accident can cause head, neck, spine and other injuries. Therefore, there is a need for a protection system that can absorb impact energy in order to prevent injury due to a fall accident.

To protect the body from falling accidents, various technologies such as hip protectors and fall airbags have been developed. However, hip protectors tend to cause inconvenience when worn, and users tend not to wear them. Therefore, the hip protector is limited in showing the expected protection performance. On the contrary, the fall airbag can be expected to have excellent protection against injury to the buttocks caused by the fall accident.

The fall airbag according to the prior art may include an inflator for compressing and storing gas to inflate the protective means. Here, the inflator releases gas by opening the outlet while exploding the explosive when a fall accident occurs. However, a very loud noise is generated due to the explosion of the gunpowder to open the inflator, there is a problem that the user is surprised or the hearing loss of the user.

KR 10-2017-0092196 A

The present invention is to solve the above problems of the prior art, an aspect of the present invention relates to an inflator silencer that can reduce the noise caused by the explosion of the gunpowder to open the inflator.

Inflator silencer according to an embodiment of the present invention is formed of a fabric, extending in a tubular shape with a space therein, the first portion is connected to the outlet of the inflator, the second portion is formed of a main body, the fabric is formed And at least one blocking film for dividing the space of the main body into a plurality of predetermined spaces, and a through hole penetrating the blocking film to fluidly communicate from the first portion of the main body to the second portion of the main body.

In addition, in the silencer for an inflator according to an embodiment of the present invention, before the inflator is operated, the main body is folded, the inflator is operated, when gas is introduced into the space of the main body, the main body expands in a tubular shape. do.

In addition, in the silencer for an inflator according to an embodiment of the present invention, before the inflator is operated, the main body is compressed and folded in a thickness direction so that outer walls are close to each other.

In addition, in the inflator silencer according to an embodiment of the present invention, when the inflator is operated, the gas flows into the space of the main body, a plurality of the predetermined space divided by the blocking film is from the predetermined space close to the inflator In order to expand.

In addition, in the silencer for an inflator according to an embodiment of the present invention, the distance between two adjacent blocking films of one or more of the blocking films is changed from the first portion of the main body to the second portion of the main body.

In addition, in the silencer for an inflator according to an embodiment of the present invention, the distance between two adjacent blocking films of one or more of the blocking films decreases from the first portion of the main body to the second portion of the main body.

In addition, in the silencer for an inflator according to an embodiment of the present invention, the size of the through hole changes from the first portion of the main body to the second portion of the main body.

In addition, in the silencer for an inflator according to an embodiment of the present invention, the size of the through hole increases from the first portion of the main body to the second portion of the main body.

In addition, in the silencer for an inflator according to an embodiment of the present invention, a plurality of the predetermined space is provided with a sound absorbing material.

In addition, in the silencer for an inflator according to an embodiment of the present invention, further comprises a blocking material surrounding the outer wall of the inflator.

In addition, in the silencer for an inflator according to an embodiment of the present invention, the blocking material is formed of urethane.

In addition, in the silencer for an inflator according to an embodiment of the present invention, the inflator is provided with two inside the protection means of the airbag, one inflator is defined as the first inflator, the other inflator is defined as the second inflator And defining the main body connected to the outlet of the first inflator as a first main body, and defining the main body connected to the outlet of the second inflator as a second main body, the outlet and the second outlet of the first main body. It is arranged to face each other with the outlet of the main body.

In addition, in the silencer for an inflator according to an embodiment of the present invention, the inflator is provided with two inside the protection means of the airbag, one inflator is defined as the first inflator, the other inflator is defined as the second inflator The main body has one end connected to the outlet of the first inflator, the other end connected to the outlet of the second inflator, and an outlet is formed between one end and the other end.

In addition, in the silencer for an inflator according to an embodiment of the present invention, the outlet is formed at least one pair in the body, the pair of outlets are arranged to discharge the gas in the opposite direction to each other.

In addition, in the silencer for an inflator according to an embodiment of the present invention, the body has a cross-sectional area increases from the first portion to the second portion.

In addition, in the silencer for an inflator according to an embodiment of the present invention, a plurality of outlets are formed.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to this, the terms or words used in this specification and claims are not to be interpreted in a conventional and dictionary sense, and the inventors may appropriately define the concept of terms in order to best describe their own invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

According to the present invention, there is an advantage that can reduce the noise caused by the explosion of the gunpowder opening the outlet of the inflator.

In addition, according to the present invention, by forming the main body and the barrier film and the like, the weight can be minimized, and folding is possible before the inflator is operated, it is possible to minimize the volume and minimize the impact on the design of the entire airbag It can be effective.

In addition, according to the present invention, from the first part of the main body to the second part of the main body, the distance between the blocking films or the size of the through-holes are changed, thereby reducing the noise (explosion sound) of a wide range of frequencies. have.

1 is a cross-sectional view of the air bag for falling applied to the silencer for the inflator according to an embodiment of the present invention,
2 is a cross-sectional view of the inflator silencer according to the first embodiment of the present invention;
3 to 5 are cross-sectional views showing the operation of the inflator silencer according to the first embodiment of the present invention,
6 is a cross-sectional view of an inflator silencer according to a second embodiment of the present invention;
7 is a cross-sectional view of an inflator silencer according to a third embodiment of the present invention;
8 is a cross-sectional view of an inflator silencer according to a fourth embodiment of the present invention;
9 is a cross-sectional view showing the arrangement of the silencer for the inflator according to the embodiment of the present invention;
10 is a cross-sectional view showing an arrangement of an inflator silencer according to another embodiment of the present invention, and
11 is a cross-sectional view showing the arrangement of an inflator silencer according to another embodiment of the present invention.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings. In the present specification, in adding reference numerals to the components of each drawing, it should be noted that the same components as possible, even if displayed on different drawings have the same number as possible. In addition, terms such as “first” and “second” are used to distinguish one component from another component, and the component is not limited by the terms. In the following description, detailed descriptions of related well-known techniques that may unnecessarily obscure the subject matter of the present invention will be omitted.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of the fall airbag to which the silencer for inflator according to the embodiment of the present invention is applied.

As shown in FIG. 1, the inflator silencer 1000 according to the embodiment of the present invention is applied to the fall airbag 10. The fall air bag 10 is to protect the user by inflating the protection means 20 by detecting when the fall of the protective means 20 is folded and the fall occurs. At this time, the fall airbag 10 is provided with an inflator 400 in order to inflate the protection means 20. The inflator 400 compresses and stores the gas, and when a fall accident occurs, the explosive is exploded and the outlet 410 of the inflator 400 is opened to release the gas. The gas released from the outlet 410 of the inflator 400 expands the protection means 20 to protect the user.

On the other hand, when the outlet 410 of the inflator 400 is opened by the gunpowder, a loud noise is generated. In order to reduce such noise, the outlet 410 of the inflator 400 has an inflator silencer according to an embodiment of the present invention. 1000 may be provided.

2 is a cross-sectional view of the inflator silencer according to the first embodiment of the present invention.

As shown in FIG. 2, the inflator silencer 1000 according to the present embodiment is formed of a fabric and extends in a tubular shape having a space therein, such that the first portion A is an outlet of the inflator 400. One or more blocking films connected to the 410, the body 100 having a discharge port 110 formed in the second portion B, formed of a fabric, and dividing the space of the body 100 into a plurality of predetermined spaces 120. 200, and a through hole 300 penetrating the blocking film 200 to allow fluid communication from the first portion A of the main body 100 to the second portion B of the main body 100.

The main body 100 serves to substantially reduce the noise generated by the inflator 400, and extends in a tubular shape having a space therein. Here, the first portion A of the main body 100 is connected to the outlet 410 of the inflator 400, and the outlet 110 is formed in the second portion B of the main body 100. For example, one end (including the first portion A) of the main body 100 surrounds the cap 420 covering the outlet 410 of the inflator 400 and the outer wall 440 of the inflator 400, An outlet 110 may be formed at the other end (second portion B) of the 100. Accordingly, the gas discharged from the outlet 410 of the inflator 400 moves along the tubularly extending body 100 and finally is discharged through the outlet 110 of the body 100 to protect the fall airbag. Can expand. In addition, since the outlet 410 of the inflator 400 is surrounded by the main body 100, it is possible to reduce noise generated by the explosion of the gunpowder. At this time, the body 100 is formed of a fabric. Therefore, the weight can be minimized compared to other materials such as metal or plastic. In addition, since the main body 100 is formed of a fabric, the main body 100 is folded before the inflator 400 operates, and when the inflator 400 operates to inject gas into the space of the main body 100, the main body 100 is tubular. Can be expanded (see FIGS. 3 to 5). As such, the body 100 may be folded, thereby minimizing volume. In addition, the main body 100 is provided in the protection means of the fall airbag together with the inflator 400. As described above, since the main body 100 is formed of a fabric to minimize the volume, the design of the entire fall airbag Minimize the impact on

Meanwhile, the method of folding the main body 100 is not particularly limited, but as shown in FIG. 3, before the inflator 400 operates, the main body 100 may have an outer wall 130 when viewed from a cross section. It may be compressed and folded in the thickness direction to be closer to each other. As such, when the main body 100 is folded in the thickness direction, the overall thickness may be minimized.

In addition, the main body 100 may be formed of any fabric known in the art, but it is preferable to use a material having a high strength to withstand the pressure of the strong gas generated when the inflator 400 operates. In consideration of this, the main body 100 may be formed of Kevlar, which is a kind of aramid fibers.

The blocking layer 200 (refer to FIG. 2) serves to reduce noise more effectively and divides the space of the main body 100. Specifically, one or more blocking films 200 are provided to divide the space of the main body 100 into a plurality of predetermined spaces 120. As such, since the blocking film 200 divides the space of the main body 100 into a plurality of predetermined spaces 120, the noise generated by the explosion of the gunpowder at the outlet 410 of the inflator 400 is transferred to the blocking film 200. Each divided predetermined space 120 may be reduced in stages. As a result, the noise generated by the explosion of the gunpowder by the blocking film 200 can be more effectively reduced.

On the other hand, the blocking film 200 is formed of a fabric similar to the main body 100. Therefore, the weight can be minimized compared to other materials such as metal or plastic. In addition, since the blocking film 200 is formed of a fabric, when the main body 100 is folded before the inflator 400 is operated, the blocking film 200 is also folded, and the inflator 400 operates to operate the main body 100. When the tubular window is flat, the blocking film 200 may be flattened (see FIGS. 3 to 5). As such, the barrier layer 200 may be folded together with the main body 100, thereby minimizing the volume.

In addition, the blocking film 200 may be formed of any fabric known in the art, similar to the main body 100, but it is preferable to use a material having a high strength to withstand the pressure of a strong gas generated when the inflator 400 operates. . In consideration of this point, the barrier layer 200 may be formed of Kevlar, which is a kind of aramid fibers.

The through hole 300 (refer to FIG. 1) serves to fluidly communicate from the first portion A of the main body 100 to the second portion B of the main body 100, and penetrates the blocking membrane 200. do. That is, the through hole 300 is formed to penetrate the blocking film 200, and the plurality of predetermined spaces 120 divided into the blocking film 200 by the through hole 300 may be in fluid communication with each other. Therefore, the gas discharged from the outlet 410 of the inflator 400 may pass through the through holes 300 formed in the blocking film 200 in order and finally be discharged through the outlet 110 of the main body 100. As a result, when the inflator 400 operates and gas is introduced into the space of the main body 100, the plurality of predetermined spaces 120 divided by the blocking film 200 are sequentially ordered from the predetermined space 120 close to the inflator 400. Can expand (see FIGS. 3 to 5).

Meanwhile, in order to prevent noise from being transmitted to the outside at portions other than the outlet 410 of the inflator 400, a blocker 430 surrounding the outer wall 440 and the cap 420 of the inflator 400 is further included. can do. Here, the blocking material 430 is not particularly limited as long as it can block noise, but may be formed by coating urethane. At this time, one end of the main body 100 of the inflator silencer 1000 may completely surround the blocking material 430. Therefore, portions other than the outlet 410 of the inflator 400 may be surrounded by a double (blocking material 430 and the main body 100) to more effectively block the noise.

3 to 5 are cross-sectional views showing the operation of the inflator silencer according to the first embodiment of the present invention, with reference to this to look at the operation of the inflator silencer 1000 according to this embodiment.

As shown in FIG. 3, the inflator silencer 1000 according to the present embodiment is connected to the outlet 410 of the inflator 400, and may be provided inside the protection means of the fall airbag together with the inflator 400. have. In addition, before the inflator 400 operates, the main body 100 may be formed of a fabric together with the blocking film 200 to maintain a folded state. Therefore, the inflator silencer 1000 according to the present embodiment can minimize the overall weight and volume.

Then, as shown in Figure 4, when the fall accident occurs, the fall airbag detects this by exploding the gunpowder provided in the inflator 400, by opening the outlet 410 of the inflator 400 to release the gas To start. As such, the gas discharged from the inflator 400 expands the plurality of predetermined spaces 120 in order while passing through the through hole 300 of the blocking film 200. At this time, the noise generated by the explosion of the gunpowder may be reduced by the main body 100 and the blocking film 200.

Subsequently, as shown in FIG. 5, the gas discharged from the inflator 400 may expand the main body 100 in a tubular shape and may be discharged to the outside of the main body 100 through the outlet 110. As such, the gas discharged to the outside of the main body 100 may protect the user by inflating the protection means of the fall airbag.

6 is a cross-sectional view of the inflator silencer according to the second embodiment of the present invention. As shown in FIG. 6, the inflator silencer 2000 according to the present exemplary embodiment may include at least one blocking film from the first portion A of the main body 100 to the second portion B of the main body 100. An interval between two adjacent blocking layers 200 of the 200 may vary (W ₁ to W ₆ ). That is, the distance between two adjacent blocking films 200 may change (W ₁ to W ₆ ). As such, when the distance between two adjacent blocking films 200 changes (W ₁ to W ₆ ), the sizes of the predetermined spaces 120 divided into the blocking films 200 are different, and thus, each predetermined space 120 is provided. The blocking frequency may be different. As a result, since the noise of different frequencies is blocked for each predetermined space 120, it is possible to implement the effect of blocking the noise of a wide range as a whole.

More specifically, as the first portion A of the main body 100 moves from the first portion A to the second portion B of the main body 100, the distance between two adjacent blocking layers 200 among one or more blocking layers 200 may decrease. (W ₁ > W ₂ > W ₃ > W ₄ > W ₅ > W ₆ ). That is, the distance between two adjacent blocking layers 200 may decrease as the distance from the inflator 400 increases.

7 is a cross-sectional view of the inflator silencer according to the third embodiment of the present invention. As shown in FIG. 7, the inflator silencer 3000 according to the present exemplary embodiment may have respective blocking films 200 from the first portion A of the main body 100 to the second portion B of the main body 100. The size (eg, diameter) of the through hole 300 formed in the can vary (D ₁ ~ D ₆ ). As such, when the size of the through hole 300 is changed (D ₁ to D ₆ ), the frequencies blocked while passing through the respective through holes 300 may be different. As a result, since the noise of different frequencies is blocked for each of the through holes 300, the effect of blocking the noise of a wide range as a whole can be realized.

More specifically, the size of the through hole 300 formed in each of the blocking films 200 may increase from the first portion A of the main body 100 to the second portion B of the main body 100 (D). ₁ <D ₂ <D ₃ <D ₄ <D ₅ <D ₆ ). That is, the size of the through hole 300 formed in each of the blocking films 200 may increase as the distance from the inflator 400 increases (D ₁ <D ₂ <D ₃ <D ₄ <D ₅ <D ₆ ).

8 is a cross-sectional view of an inflator silencer according to a fourth embodiment of the present invention. As shown in FIG. 8, the sound absorbing material 500 may be provided in the plurality of predetermined spaces 120 divided into the blocking film 200 in the inflator silencer 4000 according to the present embodiment. As such, by providing the sound absorbing material 500 in the plurality of predetermined spaces 120, the sound absorbing material 500 as well as the main body 100 and the blocking film 200 also play a role of reducing noise, thereby further reducing the overall noise reduction effect. It can be maximized. Here, the sound absorbing material 500 is not particularly limited as long as the sound absorbing material 500 can be absorbed and compressed when the main body 100 is folded. For example, the sound absorbing material 500 may have a form such as cotton, fiber, or foam.

Meanwhile, as shown in FIG. 1, two inflators 400 may be provided inside the protection means 20 of the falling airbag 10. This is to prevent the side to be pulled to one side due to the relatively heavy inflator 400 when wearing the fall air bag (10). That is, by arranging two inflators 400 symmetrically in the protection means 20 of the falling airbag 10, the overall balance of the falling airbag 10 may be maintained. In addition, since a very large pressure gas is discharged through the outlet 410 of the inflator 400, a problem may arise in that the entire fall airbag 10 is moved by the reaction of the discharged gas. For example, in order to protect the hip joint, the fall airbag 10 is worn on the waist of the user. When the fall airbag 10 moves in the direction of the user's chest, etc. by the reaction of the discharged gas, the fall airbag The protection means 20 of (10) is substantially unable to protect the hip joint. In order to solve this problem, the inflator silencer 1000 according to the present invention can prevent the movement of the fall airbag 10 by the reaction of the gas discharged through various arrangements and structures. Hereinafter, when arranging two inflators 400 inside the protection means 20 of the fall airbag 10, an inflator silencer 1000 which can prevent the movement of the fall airbag 10 due to the reaction of gas. Let's take a look at the layout and structure.

First, Figure 9 is a cross-sectional view showing the arrangement of the inflator silencer according to an embodiment of the present invention. As shown in FIG. 9, two inflator silencers 1000 are respectively connected to two inflators 400. Here, one inflator 400 is defined as the first inflator 400a and the other inflator 400 is defined as the second inflator 400b. In addition, the body 100 connected to the outlet 410 of the first inflator 400a is defined as the first body 100a, and the body 100 connected to the outlet 410 of the second inflator 400b is defined as the second body. The main body 100b is defined. In this case, the outlet 110 formed in the first body 100a and the outlet 110 formed in the second body 100b may be disposed to face each other at a predetermined interval. As such, when the outlet 110 of the first body 100a and the outlet 110 of the second body 100b are disposed to face each other, reaction by the gas discharged from the outlet 110 of the first body 100a is performed. And reaction by the gas discharged from the outlet 110 of the second body (100b) can act in opposite directions to achieve the balance of the force. Therefore, there is an effect that can prevent the phenomenon that the whole fall airbag is moved relative to the user by the reaction of the gas injected from the outlet 110.

10 is a cross-sectional view showing the arrangement of an inflator silencer according to another embodiment of the present invention. As shown in FIG. 10, one inflator silencer 5000 is connected to two inflators 400. That is, when two inflators 400 are provided, two inflator silencers 1000 are not necessarily provided, and one inflator silencer 1000 may be connected to two inflators 400. Here, one inflator 400 is defined as the first inflator 400a and the other inflator 400 is defined as the second inflator 400b. At this time, the main body 100 has one end (first portion A) connected to the outlet 410 of the first inflator 400a and the other end (first portion A) is the outlet of the second inflator 400b. Is connected to the 410, the outlet 110 may be formed between one end and the other end (second portion (B)). At least one pair of the outlets 110 may be formed in the main body 100 and the second part B, and the pair of outlets 110 may be disposed to discharge gas in opposite directions. For example, two outlets 110 may be formed in an upward direction and a downward direction. As such, when a pair of outlets 110 are formed in opposite directions, the outlets 110 may be discharged from the pair of outlets 110. Gas reactions can counterbalance each other to balance forces. Therefore, there is an effect that can prevent the phenomenon that the whole fall airbag is moved relative to the user by the reaction of the gas injected from the outlet 110.

11 is a cross-sectional view showing the arrangement of an inflator silencer according to another embodiment of the present invention. As shown in FIG. 11, one inflator silencer 6000 is connected to two inflators 400. Here, one inflator 400 is defined as the first inflator 400a and the other inflator 400 is defined as the second inflator 400b. At this time, the main body 100 has one end (first portion A) connected to the outlet 410 of the first inflator 400a and the other end (first portion A) is the outlet of the second inflator 400b. Is connected to the 410, the outlet 110 may be formed between one end and the other end (second portion (B)). In addition, the main body 100 may increase in cross-sectional area from the first portion (A) to the second portion (B). Therefore, the main body 100 may have the largest cross-sectional area in the second portion B. A plurality of outlets 110 may be formed in the second portion B of the main body 100. As described above, since a plurality of outlets 110 are formed in the second portion B of the main body 100 along the second portion B, the reaction by the gas discharged to the respective outlets 110 is relatively small. . Therefore, there is an effect that can prevent the phenomenon that the whole fall airbag is moved relative to the user by the reaction of the gas injected from the outlet 110.

Although the present invention has been described in detail through specific examples, it is intended to describe the present invention in detail, and the present invention is not limited thereto, and should be understood by those skilled in the art within the technical spirit of the present invention. It is obvious that modifications and improvements are possible.

All simple modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be apparent from the appended claims.

10: fall air bag 20: protection means
100: main body 100a: first main body
100b: second body 110: outlet
120: predetermined space 130: outer wall of the main body
200: blocking film 300: through hole
400: Inflator 400a: First Inflator
400b: second inflator 410: exit
420: cap 430: blocking material
440: outer wall of the inflator 500: sound absorbing material
1000, 2000, 3000, 4000, 5000, 6000: silencer for inflator
A: first part B: second part
W ₁ to W ₆ : distance between two adjacent barriers
D ₁ ~ D ₆ : Size of through hole

Claims (16)

A main body formed of a fabric and extending in a tubular shape having a space therein, the first portion being connected to the outlet of the inflator and having a discharge port formed in the second portion;
At least one blocking film formed of a fabric and dividing the space of the main body into a plurality of predetermined spaces; And
A through hole penetrating the blocking membrane to fluidly communicate from the first portion of the body to the second portion of the body;
Including,
Before the inflator is activated, the body is folded,
The inflator is operated, when the gas flows into the space of the main body, the main body is inflated tubular inflator.
delete The method according to claim 1,
Before the inflator is operated, the main body is compressed in the thickness direction so that the outer wall is close to each other inflator is folded.
The method according to claim 1,
When the inflator is operated, gas is introduced into the space of the main body,
And a plurality of the predetermined spaces divided by the blocking film are sequentially expanded from the predetermined space close to the inflator.
The method according to claim 1,
An silencer for an inflator, wherein a distance between two adjacent blocking films of one or more of the blocking films changes from a first portion of the main body to a second portion of the main body.
The method according to claim 5,
An silencer for an inflator, wherein a distance between two adjacent blocking films of one or more of the blocking films decreases from the first portion of the main body to the second portion of the main body.
The method according to claim 1,
The size of the through-hole silencer for changing from the first portion of the main body to the second portion of the main body.
The method according to claim 7,
The size of the through-hole silencer for increasing from the first portion of the main body to the second portion of the main body.
The method according to claim 1,
An inflator silencer provided with a sound absorbing material in a plurality of the predetermined space.
The method according to claim 1,
The silencer for the inflator further comprises a blocking material surrounding the outer wall of the inflator.
The method according to claim 10,
The blocking material is a silencer for an inflator formed of urethane.
The method according to claim 1,
The inflator is provided with two inside the protection means of the airbag,
Define one inflator as the first inflator, define another inflator as the second inflator,
When defining the body connected to the outlet of the first inflator as a first body, and defining the body connected to the outlet of the second inflator as a second body,
The silencer for the inflator disposed to face each other the outlet of the first body and the outlet of the second body.
The method according to claim 1,
The inflator is provided with two inside the protection means of the airbag,
When defining one inflator as the first inflator and the other as the second inflator,
The main body is an inflator silencer, one end is connected to the outlet of the first inflator, the other end is connected to the outlet of the second inflator, the outlet is formed between one end and the other end.
The method according to claim 13,
At least one pair of outlets is formed in the main body, and the pair of outlets are arranged to discharge gas in opposite directions to each other.
The method according to claim 13,
The main body is a silencer for an inflator, the cross-sectional area is increased from the first portion to the second portion.
The method according to claim 15,
And a plurality of outlets are formed along the second portion.

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