JPH01293112A - Filter for gas generator and its production - Google Patents
Filter for gas generator and its productionInfo
- Publication number
- JPH01293112A JPH01293112A JP63121510A JP12151088A JPH01293112A JP H01293112 A JPH01293112 A JP H01293112A JP 63121510 A JP63121510 A JP 63121510A JP 12151088 A JP12151088 A JP 12151088A JP H01293112 A JPH01293112 A JP H01293112A
- Authority
- JP
- Japan
- Prior art keywords
- annular
- wire
- filter
- layer
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 6
- 238000000748 compression moulding Methods 0.000 abstract description 4
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 239000006261 foam material Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2027—Metallic material
- B01D39/2041—Metallic material the material being filamentary or fibrous
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Air Bags (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は車両衝突時に乗員を保護するエアバッグや浮
力発生用バッグの膨張用、パルプ緊急開閉用、座席緊急
射出用等に用いるガス発生器のフィルタ、およびこのフ
ィルタの製造方法に関′!する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a gas generator used for inflating airbags and buoyancy generation bags that protect occupants in the event of a vehicle collision, for emergency opening/closing of pulp, for emergency seat injection, etc. Regarding the filter and the manufacturing method of this filter! do.
この種のガス発生器としては、火薬を燃焼させて発生し
た高温ガスを用いる方式が広く採用されているが、バッ
グ等の損傷を避けるためのガスの冷!IIおよびガス中
の有害成分の捕集のために、フィルタを用いる必要があ
る。このフ、イルタとしては、たとえば特開昭51−6
033号公報に開示されているように、冷却室に直線状
の金属線材ないし金属棒を充填したものや、ステンレス
線の金網(平織品)をケーシング内径寸法に合せて裁断
したものを複数枚積層したもの、スチールウール、金属
やセラミックの発泡材、金属製の邪魔板など各種のもの
が用いられている。As this type of gas generator, a method that uses high-temperature gas generated by burning gunpowder is widely adopted, but in order to avoid damage to bags, etc., the gas must be cooled! II and for the collection of harmful components in the gas it is necessary to use a filter. As this filter, for example, JP-A-51-6
As disclosed in Publication No. 033, a cooling chamber filled with straight metal wires or metal rods, or a stack of stainless steel wire mesh (plain weave) cut to match the inner diameter of the casing. A variety of materials are used, including steel wool, metal and ceramic foam materials, and metal baffles.
ところが上記各フィルタのうち、直線状の金属線材ない
し金属棒は、弾性がないためケーシングとの間にすきま
を生じてガスがショートバスし、またセットに手間がか
かり容積もかさむという欠点がある。また金網も弾性が
少ないので上記ショートパスを生じやすく、また20〜
300メツシユのものを交互に積層するため装填に手間
がかかる。さらにスチールウールは高温ガスによりFJ
!flしやすく高価でもあり、発泡材は弾性がなく通気
性が劣るうえ高価であり、また邪魔板は構造が複雑で装
置が大型となり、有害生成物の捕集効果が劣るなど、種
々の欠点を有するものであった。However, among the above-mentioned filters, the linear metal wire or metal rod has the disadvantage that it has no elasticity and thus creates a gap with the casing, causing a short gas flow, and that it takes time and effort to set up and is bulky. In addition, since the wire mesh has little elasticity, it is easy to cause the short pass mentioned above, and
Loading is time-consuming because 300 meshes are stacked alternately. Furthermore, steel wool undergoes FJ due to high temperature gas.
! Foam materials have various disadvantages, such as being easy to flutter and being expensive, foam materials have no elasticity, poor breathability, and are expensive, and baffle plates have a complicated structure, making the device large and having a poor effect on trapping harmful products. It was something that I had.
この発明は上記従来の欠点を解消するもので、ガス発生
器への装着が容易であり、ガスのショー1−バス、溶損
および通気性の悪化を防止できる小型で有用なガス発生
器用フィルタと、このフィルタを簡潔な工程により製造
できる製造方法を提供しようとするものである。The present invention solves the above-mentioned conventional drawbacks, and provides a small and useful gas generator filter that can be easily attached to a gas generator and prevents gas leakage, melting and deterioration of air permeability. , it is an object of the present invention to provide a manufacturing method that allows this filter to be manufactured through simple steps.
しかしてこの発明のフィルタは、金属練製の環状のフィ
ルタであって、線径0.1〜0.4mmの好ましくはメ
リヤス編金網から成る環状$IIIFj1層と、線径0
,5〜2.0 mmの好ましくは平織金網から成る環状
太線層とを具備し、前記環状太線層はガス流入側に偏在
して設けられ、二層構造全体のかさ比重が1.0〜3.
0となるように圧縮成形されて成るガス発生器用フィル
タである。However, the filter of the present invention is an annular filter made of metal wrought, and includes one annular $IIIFj layer made of preferably knitted wire mesh having a wire diameter of 0.1 to 0.4 mm, and a wire wire diameter of 0.
, 5 to 2.0 mm thick annular wire layer preferably made of plain weave wire mesh, the annular thick wire layer being provided unevenly on the gas inflow side, and the bulk specific gravity of the entire two-layer structure being 1.0 to 3. ..
This is a filter for a gas generator that is compression molded to have a diameter of 0.
またこの発明のフィルタの第1の製造方法は、線径0.
5〜2.0Mの金属線から成る好ましくは平織金網をベ
ルト巻き等のように巻回して環状体とし、線径0.1〜
0.4 mtsの金属線から成る好ましくはメリヤス編
金網により円筒体を形成し、この円筒体の一部を前記環
状体に挿通させて該環状体に巻付け、前記円筒体の残部
を袋巻き後、前記IKt状体と共に圧縮成形して、環状
太lD層が環状細線層の内部にある二層構造の環状のフ
ィルタを得るガス発生器用フィルタの製造方法である。Further, the first method for manufacturing the filter of the present invention is characterized in that the wire diameter is 0.
Preferably, a plain-woven wire mesh made of a metal wire of 5 to 2.0M is wound into a ring shape like a belt winding, and the wire diameter is 0.1 to 2.0M.
A cylindrical body is formed from a preferably knitted wire mesh made of metal wire of 0.4 mts, a part of this cylindrical body is passed through the annular body and wound around the annular body, and the remaining part of the cylindrical body is wrapped in a bag. Thereafter, the IKt-shaped body is compression-molded to obtain a two-layered annular filter in which the annular thick ID layer is inside the annular thin wire layer.
またこの発明の′フィルタの第2の製造方法は、線径0
,5〜2.OMの金属線から成る好ましくは平織金網を
巻回して環状体とし、線径0.1〜0.4mmの金属線
から成る好ましくはメリヤス編金網により円筒体を形成
し、この円筒体を袋巻きして得た環状の袋巻品を、前記
環状体に嵌合ないし積層した状態で、前記環状体と共に
圧縮成形して、環状太線層が環状細線層の外部(内径側
を含む)にある二層構造の環状のフィルタをqるガス発
生器用フィルタの製造方法である。Further, the second method for manufacturing the 'filter of the present invention is that the wire diameter is 0.
, 5-2. A plain weave wire mesh made of OM metal wire is wound to form an annular body, a cylindrical body is formed from a preferably stockinette knitted wire mesh made of metal wire with a wire diameter of 0.1 to 0.4 mm, and this cylindrical body is wrapped in a bag. The annular bag-wrapped product obtained by this process is compression-molded together with the annular body while being fitted or laminated to the annular body, so that the annular thick wire layer is located outside (including the inner diameter side) of the annular thin wire layer. This is a method for manufacturing a filter for a gas generator, which is an annular filter with a layered structure.
この発明において金属線としては、たとえばステンレス
鋼、ニッケル合金鋼、コバルト合金鋼などの、耐熱性を
有する金属線を用いることができる。In the present invention, heat-resistant metal wires such as stainless steel, nickel alloy steel, cobalt alloy steel, etc. can be used as the metal wire.
この発明においてメリヤス編金網等の環状細線層を構成
する細線の線径は、0.1#未満とすると溶損のおそれ
があり、0.4姻を越えると編機による編組時の抵抗が
大となり、好ましくない。また平城金wJ等の環状太線
層を構成する太線の線径は、0.5#未満とするとガス
流入側にあるため溶損のおそれがあり、2mを越えると
かさばり大型化するので、好ましくない。In this invention, if the wire diameter of the thin wire constituting the annular thin wire layer such as knitted knitted wire mesh is less than 0.1#, there is a risk of melting damage, and if it exceeds 0.4#, the resistance during braiding by the knitting machine will be large. This is not desirable. Furthermore, if the wire diameter of the thick wire constituting the annular thick wire layer such as Heijokin WJ is less than 0.5#, there is a risk of melting damage because it is on the gas inflow side, and if it exceeds 2m, it will become bulky and large, which is not preferable. .
この発明において環状太線層は、環状細線層の ′内
部にあって該環状細線層により包囲される形でガス流入
側に偏在して設けられる場合と、環状細線層の外部にあ
って該環状細線層に隣接する形でガス流入側に偏在して
設けられる場合とがある。In this invention, the annular thick wire layer is provided inside the annular thin wire layer and is surrounded by the annular thin wire layer and unevenly distributed on the gas inflow side, and when it is provided outside the annular thin wire layer and is provided on the gas inflow side. In some cases, they are provided unevenly on the gas inflow side adjacent to the layer.
前者の場合は、環状太線層のさらにガス流入側にも少量
の環状fIlIi1層が存在するものであって、この構
成のフィルタはこの発明の第1の製造方法(請求項2)
によって能率的に製造される。また後者の場合は、環状
太線層のガス流入側には環状細線層は存在せず、この構
成のフィルタはこの発明の第2の製造方法(請求項3)
によって能率的に製造される。In the former case, a small amount of the annular fIlIi1 layer is present on the gas inflow side of the annular thick line layer, and the filter with this structure is manufactured by the first manufacturing method of the present invention (claim 2).
Manufactured efficiently by In the latter case, the annular thin wire layer does not exist on the gas inflow side of the annular thick wire layer, and the filter with this structure is manufactured by the second manufacturing method of the present invention (claim 3).
Manufactured efficiently by
またこの発明においては、圧縮成形によりフィルタのか
さ比重の調整をおこなうことができるが、かさ比重が1
未満ではかさばり大型化し、かさ比重が3を越えると通
気抵抗が大となり、好ましくない。なお環状細線層と環
状太線層とを形成する金網は、好ましくは環状細線層を
メリヤス編とし、環状太線層を平織とするのが良いが、
必ずしもこれに限られるものではなく、その他の織方の
金網でも勿論使用できるものである。In addition, in this invention, the bulk specific gravity of the filter can be adjusted by compression molding.
If the bulk specific gravity is less than 3, it becomes bulky and large, and if the bulk specific gravity exceeds 3, the ventilation resistance becomes large, which is not preferable. Note that the wire mesh forming the annular thin wire layer and the annular thick wire layer is preferably made of stockinette knit for the annular thin wire layer and plain weave for the annular thick wire layer.
The wire mesh is not necessarily limited to this, and wire meshes of other weaves can of course be used.
(作用)
この発明のガス発生器用フィルタは、金網の圧縮成形品
であるため、弾性を有し、ケーシングへの装着状態にお
いてケーシング内壁面に密着し、また一体成形量であっ
て型くずれが少ない。また高温のガスは環状太線層通過
時にある程度冷却されるとともにガス中の有害生成物の
一部が捕集され、次に環状細線層によりさらに冷却と有
害生成物の残部の捕集がおこなわれる。このIζめ環状
細lQIにおける溶損の発生が防止されるとともに、有
害生成物は大小2段階の流通空隙通過により大粒子のも
のから順次補集され、目詰りによる通気性の悪化が防出
される。なお環状1IIl線層が環状太線層を包囲して
いる場合は、環状細線層は環状太線層を保持して両者は
確実に一体化さ机、環状太a層よりもガス流入側に存在
する環状側112層が高温ガスにより万一溶損しても、
そのすぐ下流側に存在する環状太線層によるガスの冷却
および生成物の捕集は支障なくおこなわれる。また環状
太線層が環状綿a層外にあって環状細線層に隣接してい
る場合は、圧縮成形時における各金網のからみ合いおよ
び弾性により、両層は一体化し二層構造の1個の環状体
の形状を保持する。(Function) Since the filter for a gas generator of the present invention is a compression molded product of a wire mesh, it has elasticity and adheres closely to the inner wall surface of the casing when attached to the casing, and is molded in one piece so that there is little deformation. Further, the high temperature gas is cooled to some extent as it passes through the annular thick wire layer, and a part of the harmful products in the gas are collected, and then further cooling and the remaining harmful products are collected by the annular thin wire layer. In addition to preventing the occurrence of erosion in this Iζ-shaped annular thin lQI, harmful products are collected in order from large particles by passing through the two-stage distribution gap, which prevents deterioration of air permeability due to clogging. . In addition, when the annular thick wire layer surrounds the annular thick wire layer, the annular thin wire layer holds the annular thick wire layer and the two are reliably integrated. Even if the side 112 layer were to melt due to high temperature gas,
Cooling of the gas and collection of the products by the annular thick line layer existing immediately downstream thereof are carried out without any problem. In addition, if the annular thick wire layer is outside the annular cotton A layer and adjacent to the annular thin wire layer, due to the entanglement and elasticity of each wire mesh during compression molding, both layers will be integrated into one annular layer with a two-layer structure. Retains body shape.
以下第1図および第2図によりこの発明の第1実施例を
説明する。A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
第1図において、線径0.1〜0.4−のステンレス!
1製の金属線1を編機2によりメリヤス編みして、筒状
のメリヤス編金網3を得「第1図(a)〕、これを切断
してメリヤス編金網製の円筒体4とする。[同図(b)
]
一方、線径0.5〜2a11のステンレス鋼製の金属線
5を#1機6により平織りして、平11金網7を桿[同
図(C)]、これを細巾に切断してベルト巻きに巻回し
て環状体8とする。[同図(d)]次にこの環状体8内
に前記円筒体4を挿通させて、円筒体4の一部4aを環
状体8に袋巻き状に巻付けるとともに、円筒体4の残部
4bを袋巻きし[同図(e)]、袋巻き部を所定の位置
(この実施例では環状体8の外周部)に位置さ(4r同
図(f)]、これをプレスにより金型内で圧縮成形して
二層構造の環状のフィルタ10を得る。[同図(g)]
11はメリヤス編金網3から成る環状l1IIvA層、
12は平織金網7から成る環状太線層で、内径側に偏在
した形で環状細線層11内に保持されている。In Figure 1, stainless steel with a wire diameter of 0.1 to 0.4-!
A metal wire 1 manufactured by K. 1 is stockinette-knitted by a knitting machine 2 to obtain a cylindrical stockinette-knitted wire mesh 3 (FIG. 1(a)), which is cut to form a cylindrical body 4 made of stockinette-knitted wire mesh. [Figure (b)
] On the other hand, a stainless steel metal wire 5 with a wire diameter of 0.5 to 2a11 was plain woven using a #1 machine 6, a flat 11 wire mesh 7 was made into a rod [same figure (C)], and this was cut into thin strips. It is wound into a belt to form an annular body 8. [Image (d)] Next, the cylindrical body 4 is inserted into the annular body 8, and the part 4a of the cylindrical body 4 is wrapped around the annular body 8 in a bag shape, and the remaining part 4b of the cylindrical body 4 is wrapped around the annular body 8. The wrapped portion is placed in a predetermined position (in this example, the outer periphery of the annular body 8) (4r (f) in the same figure), and is pressed into the mold. Compression molding is performed to obtain a two-layered annular filter 10. [Image (g)] 11 is an annular l1IIvA layer made of knitted knitted wire mesh 3;
Reference numeral 12 denotes an annular thick wire layer made of plain-woven wire mesh 7, which is held within the annular thin wire layer 11 in a manner unevenly distributed on the inner diameter side.
上記構成のフィルタ10は、第2図に示すようにガス発
生器13のケーシング14の環状の冷却ろ過室14a内
に圧入装填し、キャップ15を被着する。フィルタ10
は一体成形され型くずれしないので、ケーシング14へ
の装填はワンタッチで容易におこなえる。燃焼室16内
に装填したガス発生剤17に点火器18により点火すれ
ば、ガス発生剤17が爆発燃焼して高温ガスが発生1ノ
、この高温ガスは通気孔1つを通ってフィルタ1゜を通
過し、冷却と有害生成物の捕集がおこなわれたのち、ガ
ス噴出口20から噴出し、エアバッグ等のガス利用側へ
供給される。The filter 10 having the above structure is press-fitted into the annular cooling filtration chamber 14a of the casing 14 of the gas generator 13, and a cap 15 is attached thereto, as shown in FIG. filter 10
Since it is integrally molded and does not lose its shape, it can be easily loaded into the casing 14 with one touch. When the gas generating agent 17 loaded in the combustion chamber 16 is ignited by the igniter 18, the gas generating agent 17 explodes and burns, generating high-temperature gas. After cooling and collecting harmful products, the gas is ejected from the gas ejection port 20 and supplied to the gas utilization side such as an airbag.
次に第3図はこの発明の12実施例を示し、竹記実施例
と同様にして好ましくはメリヤス編金網製の細線層より
なる円筒体4と好ましくは平織金網製の太線層よりなる
環状体8を19、第3図(a)に示すように、円筒体4
を単独で袋巻きした環状の袋巻品21を、環状体8の外
側に嵌込み、これをプレスにより圧縮成形すれば、同図
(b)に示すように環状太線層12の外部に環状m線層
11を固設した二層構造の環状のフィルタ22が得られ
る。Next, FIG. 3 shows a twelfth embodiment of the present invention, in which a cylindrical body 4 is preferably made of a fine wire layer made of knitted wire mesh, and an annular body is preferably made of a thick wire layer made of plain weave wire mesh, in the same manner as in the Bamboo record embodiment. 8 to 19, as shown in FIG. 3(a), the cylindrical body 4
If the annular bag-wrapped product 21, which is individually wrapped in a bag, is fitted onto the outside of the annular body 8 and compression-molded using a press, a ring-shaped m is formed on the outside of the annular thick wire layer 12 as shown in FIG. An annular filter 22 having a two-layer structure in which the wire layer 11 is fixed is obtained.
この発明は上記各実施例に限定されるものではなく、た
とえば丸編物状の円筒体4のがわりに、。The present invention is not limited to the above-mentioned embodiments; for example, instead of the circular knitted cylindrical body 4.
金属線をメリヤス編みした平編物のシートを巻いて、ス
ポット溶接等により円筒状にしたものを用いてもよい。A sheet of flat knitted metal wire stockinette may be wound and made into a cylindrical shape by spot welding or the like.
また高温ガスが外周側から内周側へと流通するガス発生
器用のフィルタの場合は、上記各実施例において環状太
線層12を外周側に配設すればよい。Further, in the case of a filter for a gas generator in which high-temperature gas flows from the outer circumferential side to the inner circumferential side, the annular thick line layer 12 may be disposed on the outer circumferential side in each of the above embodiments.
さらに高温ガスが環状体の軸線方向に流通する軸流方式
のガス発生器用のフィルタの場合は、たとえば第4図ま
たは第5図に示すように、環状太線層12とほぼ同径の
環状細線層11を2段に積層した形に圧縮成形すればよ
い。Furthermore, in the case of a filter for an axial flow type gas generator in which high-temperature gas flows in the axial direction of the annular body, for example, as shown in FIG. 4 or FIG. 11 may be compression molded into a two-tiered stacked form.
以上は環状Il線層ゴ1および環状太線層12がそれぞ
れ1種類の線径の金網から成る場合について説明したが
、これら各層を線径の異なる複数種類の金網で構成して
もよい。The case where the annular Il wire layer 1 and the annular thick wire layer 12 are each made of wire mesh having one type of wire diameter has been described above, but each of these layers may be made of a plurality of types of wire mesh having different wire diameters.
〔発明の効果]
以上説明したようにこの発明のフィルタは、金網の圧縮
成形品であって小型で弾性を有し、ガス発生器への装着
が簡単容易であり、ガスのショートパスを防止できると
ともに、環状網$!層とガス流入側に偏在した環状太線
層を具備するので、高温ガスによる溶損および通気性の
悪化を防止できる有用なフィルタである。またこの発明
のフィルタの製造方法によれば、簡潔な工程により前記
のすぐれた特性を有するフィルタを製造することができ
、得られたフィルタは各種用途のガス発生器に広く利用
できる。[Effects of the Invention] As explained above, the filter of the present invention is a compression-molded product of wire mesh, is small and has elasticity, can be easily attached to a gas generator, and can prevent short paths of gas. Along with the circular net $! It is a useful filter that can prevent melting damage and deterioration of air permeability due to high temperature gas because it has an annular thick line layer unevenly distributed on the gas inflow side. Further, according to the filter manufacturing method of the present invention, a filter having the above-mentioned excellent characteristics can be manufactured through simple steps, and the obtained filter can be widely used in gas generators for various uses.
第1図はこの発明の第1実施例を示すフィルタの製造工
!!i!説明図、第2図は同じくフィルタの使用状態を
示す縦断面図、第3図はこの発明の第2実施例を示す製
造工程説明図、第4図および第5図はこの発明のさらに
伯の実施例を示すフィルタの縦断面図である。
1・・・金属線、3・・・メリヤス編金網、4・・・円
筒体、4a・・・一部、4b・・・残部、5・・・金属
線、7・・・平織金網、8・・・環状体、IO・・・フ
ィルタ、11・・・環状細線層、12・・・環状太線層
、21・・・袋巻品、22・・・フィルタ。FIG. 1 shows a filter manufacturing process showing a first embodiment of the present invention. ! i! 2 is a vertical sectional view showing the filter in use, FIG. 3 is a manufacturing process explanatory diagram showing a second embodiment of the present invention, and FIGS. 4 and 5 are further embodiments of the present invention. FIG. 2 is a vertical cross-sectional view of a filter showing an example. DESCRIPTION OF SYMBOLS 1... Metal wire, 3... Knitted wire mesh, 4... Cylindrical body, 4a... Part, 4b... Remainder, 5... Metal wire, 7... Plain weave wire mesh, 8 . . . Annular body, IO .
Claims (1)
0.4mmの金網から成る環状細線層と、線径0.5〜
2.0mmの金網から成る環状太線層とを具備し、前記
環状太線層はガス流入側に偏在して設けられ、二層構造
全体のかさ比重が1.0〜3.0となるように圧縮成形
されて成るガス発生器用フィルタ。 2、線径0.5〜2.0mmの金属線から成る金網を巻
回して環状体とし、線径0.1〜0.4mmの金属線か
ら成る金網により円筒体を形成し、この円筒体の一部を
前記環状体に挿通させて該環状体に巻付け、前記円筒体
の残部を袋巻き後、前記環状体と共に圧縮成形して環状
の二層構造フィルタを得るガス発生器用フィルタの製造
方法。 3、線径0.5〜2.0mmの金属線から成る金網を巻
回して環状体とし、線径0.1〜0.4の金属線から成
る金網により円筒体を形成し、この円筒体を袋巻きして
得た環状の袋巻品を、前記環状体に嵌合ないし積層した
状態で、前記環状体と共に圧縮成形して環状の二層構造
フィルタを得るガス発生器用フィルタの製造方法。[Scope of Claims] 1. An annular filter made of metal wire, which has a wire diameter of 0.1 to
An annular thin wire layer consisting of a wire mesh of 0.4 mm and a wire diameter of 0.5~
The thick annular wire layer is provided unevenly on the gas inflow side, and is compressed so that the bulk specific gravity of the entire two-layer structure is 1.0 to 3.0. A molded gas generator filter. 2. A wire mesh made of metal wire with a wire diameter of 0.5 to 2.0 mm is wound to form an annular body, a cylindrical body is formed from a wire mesh made of metal wire with a wire diameter of 0.1 to 0.4 mm, and this cylindrical body A part of the cylindrical body is passed through the annular body and wound around the annular body, and the remaining part of the cylindrical body is wrapped in a bag, and then compression molded together with the annular body to obtain an annular two-layer structure filter. Method. 3. A wire mesh made of metal wire with a wire diameter of 0.5 to 2.0 mm is wound to form an annular body, a cylindrical body is formed from a wire mesh made of metal wire with a wire diameter of 0.1 to 0.4, and this cylindrical body A method for producing a filter for a gas generator, in which an annular bag-wrapped product obtained by bag-wrapping is compressed and molded together with the annular body in a state in which it is fitted or stacked on the annular body to obtain an annular two-layer structure filter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63121510A JPH01293112A (en) | 1988-05-17 | 1988-05-17 | Filter for gas generator and its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63121510A JPH01293112A (en) | 1988-05-17 | 1988-05-17 | Filter for gas generator and its production |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01293112A true JPH01293112A (en) | 1989-11-27 |
JPH0367723B2 JPH0367723B2 (en) | 1991-10-24 |
Family
ID=14812986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63121510A Granted JPH01293112A (en) | 1988-05-17 | 1988-05-17 | Filter for gas generator and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH01293112A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0332914U (en) * | 1989-08-11 | 1991-03-29 | ||
JPH04118336A (en) * | 1990-09-06 | 1992-04-20 | Nippon Oil & Fats Co Ltd | Gas generator |
WO1994014637A1 (en) * | 1992-12-28 | 1994-07-07 | Atlantic Research Corporation | Inflating crash bags |
JPH07285412A (en) * | 1994-04-18 | 1995-10-31 | Nippon Reinz Co Ltd | Filter for infloator in air bag system |
US5849054A (en) * | 1995-10-31 | 1998-12-15 | Nippon Reinz Co., Ltd. | Filter for an inflator |
JP2001315611A (en) * | 2000-02-28 | 2001-11-13 | Daicel Chem Ind Ltd | Coolant/filter of gas generator for air bag |
JP2004261629A (en) * | 2003-01-24 | 2004-09-24 | Chuo Spring Co Ltd | Method for manufacturing filter member |
US6840977B1 (en) * | 1999-07-14 | 2005-01-11 | Daicel Chemical Industries, Ltd. | Coolant for air-bag gas generator and production method therefor |
JP2009530534A (en) * | 2006-03-24 | 2009-08-27 | エミテック ゲゼルシヤフト フユア エミツシオンス テクノロギー ミツト ベシユレンクテル ハフツング | Exhaust treatment device for internal combustion engine |
US7763092B2 (en) | 2004-01-07 | 2010-07-27 | Daicel Chemical Industries, Ltd. | Filter for an air bag gas generator |
CN102553357A (en) * | 2010-12-06 | 2012-07-11 | 株式会社科迪尔泰克 | Metal line shaping body and filter |
-
1988
- 1988-05-17 JP JP63121510A patent/JPH01293112A/en active Granted
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0332914U (en) * | 1989-08-11 | 1991-03-29 | ||
JPH04118336A (en) * | 1990-09-06 | 1992-04-20 | Nippon Oil & Fats Co Ltd | Gas generator |
WO1994014637A1 (en) * | 1992-12-28 | 1994-07-07 | Atlantic Research Corporation | Inflating crash bags |
JPH07285412A (en) * | 1994-04-18 | 1995-10-31 | Nippon Reinz Co Ltd | Filter for infloator in air bag system |
US5849054A (en) * | 1995-10-31 | 1998-12-15 | Nippon Reinz Co., Ltd. | Filter for an inflator |
US6840977B1 (en) * | 1999-07-14 | 2005-01-11 | Daicel Chemical Industries, Ltd. | Coolant for air-bag gas generator and production method therefor |
JP2001315611A (en) * | 2000-02-28 | 2001-11-13 | Daicel Chem Ind Ltd | Coolant/filter of gas generator for air bag |
JP2004261629A (en) * | 2003-01-24 | 2004-09-24 | Chuo Spring Co Ltd | Method for manufacturing filter member |
US7640663B2 (en) | 2003-01-24 | 2010-01-05 | Chuo Hatsujo Kabushiki Kaisha | Filter member producing method |
US7763092B2 (en) | 2004-01-07 | 2010-07-27 | Daicel Chemical Industries, Ltd. | Filter for an air bag gas generator |
JP2009530534A (en) * | 2006-03-24 | 2009-08-27 | エミテック ゲゼルシヤフト フユア エミツシオンス テクノロギー ミツト ベシユレンクテル ハフツング | Exhaust treatment device for internal combustion engine |
JP2010048257A (en) * | 2006-03-24 | 2010-03-04 | Emitec Ges Fuer Emissionstechnologie Mbh | Exhaust gas treating device of internal combustion engine |
CN102553357A (en) * | 2010-12-06 | 2012-07-11 | 株式会社科迪尔泰克 | Metal line shaping body and filter |
Also Published As
Publication number | Publication date |
---|---|
JPH0367723B2 (en) | 1991-10-24 |
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