JPH03249486A - Safety vale for closed container and manufacture thereof - Google Patents

Safety vale for closed container and manufacture thereof

Info

Publication number
JPH03249486A
JPH03249486A JP2046526A JP4652690A JPH03249486A JP H03249486 A JPH03249486 A JP H03249486A JP 2046526 A JP2046526 A JP 2046526A JP 4652690 A JP4652690 A JP 4652690A JP H03249486 A JPH03249486 A JP H03249486A
Authority
JP
Japan
Prior art keywords
bottom plate
melting point
low melting
hole
point alloy
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
Application number
JP2046526A
Other languages
Japanese (ja)
Other versions
JP2582305B2 (en
Inventor
Akiyoshi Yamashita
山下 晃由
Hiroshi Yanagihara
柳原 擴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ASIA KINZOKU KOGYO KK
Original Assignee
ASIA KINZOKU KOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ASIA KINZOKU KOGYO KK filed Critical ASIA KINZOKU KOGYO KK
Priority to JP2046526A priority Critical patent/JP2582305B2/en
Priority to US07/658,689 priority patent/US5154201A/en
Publication of JPH03249486A publication Critical patent/JPH03249486A/en
Priority to US07/903,918 priority patent/US5320127A/en
Application granted granted Critical
Publication of JP2582305B2 publication Critical patent/JP2582305B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Safety Valves (AREA)

Abstract

PURPOSE:To enhance the safety function by forming a small through-hole in a concave section which is formed in the bottom plate of a container body and which is curved inward, and by blocking this small through-hole at the outer surface side of the bottom plate with the use of low melting point alloy which is fused and bonded to the inside of the concave section and which is melted under an abnormal overheating condition. CONSTITUTION:In the case of manufacture of a safety valve for preventing a closed container having a closed container body 1 from being abnormally overheated, it has a separate bottom plate 11 which is assembled to the container body 1. The bottom plate 11 is a disc having a section shape which is curved inward. An inward recessed concave section 13 is formed in the center part of the disc. The small through-hole 14 is formed in the center part of the concave section 13 in which a pellet-like low melting point alloy 3 is set while the bottom plate 11 is supported in such a condition that it is convex downward. When the container body 1 comes under an abnormal overheating condition, since the low melting point alloy 3 is melted under this abnormal overheating condition, the film of the low melting alloy 3 is broken, and accordingly, the inside of the container body 1 is communicated with the outside through the through-hole 14.

Description

【発明の詳細な説明】 [利用分野及び発明の概要] 本発明は、エアーゾル容器等のように、内部に高圧ガス
体等を充填した圧力容器の安全弁、特に、圧力容器が過
熱状態となったときの爆発事故等を防止するための安全
弁及びその製造方法に関するものであり、従来の感圧式
の安全弁に替えて感熱式の安全弁とすることにより、安
全弁の構造の簡素化を企画するとともに安全動作を確実
化し、しかも、この安全弁の製造を簡素化するものであ
る。
[Detailed Description of the Invention] [Field of Application and Summary of the Invention] The present invention relates to a safety valve for a pressure vessel filled with a high-pressure gas or the like, such as an aerosol container, and particularly to a safety valve for a pressure vessel filled with a high-pressure gas or the like, such as an aerosol container. This paper relates to a safety valve and its manufacturing method to prevent explosion accidents, etc., and aims to simplify the structure of the safety valve by replacing the conventional pressure-sensitive safety valve with a heat-sensitive safety valve. Moreover, the manufacturing of this safety valve is simplified.

[従来技術及びその課題] エアーゾル容器等の圧力容器では、異常過熱状態となる
と、内圧が異常に高圧となって最終的には爆発事故を招
来する。そこで、かかる不都合な防止するために、従来
は、第4図に示すような安全弁が容器主体(1)の底板
(11)に取付けられている。この安全弁は、前記底板
(11)の中央部に形成した弁座口(12)を外部から
閉塞する弁体(20)をバネ(21)によって常閉方向
に付勢したものである。
[Prior art and its problems] When a pressure container such as an aerosol container becomes abnormally overheated, the internal pressure becomes abnormally high, eventually leading to an explosion accident. In order to prevent such inconvenience, a safety valve as shown in FIG. 4 has conventionally been attached to the bottom plate (11) of the main body (1) of the container. This safety valve has a valve body (20) that externally closes a valve seat opening (12) formed in the center of the bottom plate (11), which is biased in a normally closed direction by a spring (21).

このものでは、弁体(20)の開弁圧力をバネ(21)
の付勢力によって所定の圧力に設定してあり、容器主体
(1)が異常過熱状態となって、その内圧が前記設定圧
力以上に上昇すると、前記弁体(20)が開弁じて容器
主体(1)内の圧力を低下させる。
In this case, the valve opening pressure of the valve body (20) is controlled by the spring (21).
When the container main body (1) becomes abnormally overheated and its internal pressure rises above the set pressure, the valve body (20) opens and the container main body (1) 1) Reduce the pressure inside.

ところが、この従来のものでは、この安全弁の構造が複
雑であり、容器主体(1)の底板(11)に組み付ける
際の作業性が不十分であると共に、この安全弁のコスト
が高くつくという問題がある。
However, with this conventional safety valve, the structure of the safety valve is complicated, and the workability when assembling it to the bottom plate (11) of the main body (1) of the container is insufficient, and the cost of this safety valve is high. be.

本発明は、このような、「容器主体(1)内を密封した
容器の異常通熱防止用の安全弁」において、簡単な構成
によって安全機能を発揮するようにし構造の簡略化及び
生産性の向上を図ることをその課題とする。
The present invention provides such a "safety valve for preventing abnormal heat conduction in a sealed container main body (1)" by achieving a safety function with a simple configuration, simplifying the structure and improving productivity. The task is to achieve this goal.

*請求項1の発明について [技術的手段] 上記課題を解決するために講じた本発明の技術的手段は
r容器主体(1)の底板(11)に内方に屈曲する凹陥
部(13)を形成し、この凹陥部(13)に小さな透孔
(14)を穿設し、この透孔(14)を底板(11)の
外面側から前記凹陥部(13)内に溶融結合させた低融
点合金(3)によって閉塞し、前記低融点合金(3)の
融点を異常通熱条件下で溶融する程度の温度に設定した
1ことである。
*Regarding the invention of claim 1 [Technical means] The technical means of the present invention taken to solve the above problem is to provide a recess (13) bent inward in the bottom plate (11) of the r container main body (1). A small through hole (14) is formed in this recessed part (13), and this through hole (14) is melt-bonded into the recessed part (13) from the outer surface side of the bottom plate (11). It is closed by the melting point alloy (3), and the melting point of the low melting point alloy (3) is set to a temperature that melts under abnormal heat conduction conditions.

[作用] 本発明の上記技術的手段は次のように作用する。[Effect] The above technical means of the present invention operates as follows.

通常時には、底板(11)の凹陥部(13)に形成した
透孔(14)が低融点合金(3)によって閉塞されてい
るから、容器主体(1)の内圧が逃げることがない。
Under normal conditions, the through hole (14) formed in the concave portion (13) of the bottom plate (11) is closed by the low melting point alloy (3), so that the internal pressure of the main body (1) of the container does not escape.

容器主体(1)が異常過熱条件下に置かれると、低融点
合金(3)の融点は、異常過熱条件下で溶融する程度の
融点に設定したから、この条件下で溶融し、容器主体(
1)内の圧力によって透孔(14)を閉塞する低融点合
金(3)の膜が破られるか、又は、この低融点合金(3
)が凹陥部(13)から脱落する。低融点合金(3)は
、底板(11)の外面側において前記凹陥部(13)内
に溶融結合させているからである。
When the main body of the container (1) is placed under abnormal overheating conditions, the melting point of the low melting point alloy (3) is set to such a level that it will melt under abnormal overheating conditions, so it will melt under these conditions and the main body of the container (
1), the membrane of the low melting point alloy (3) that closes the through hole (14) is ruptured, or the low melting point alloy (3)
) falls off from the recess (13). This is because the low melting point alloy (3) is fused and bonded within the recessed portion (13) on the outer surface side of the bottom plate (11).

この結果、容器主体(1)内は透孔(14)を介して外
部と連通ずることとなり、容器主体(1)の内圧が低下
して、異常過熱条件下での爆発事故が防止される。
As a result, the inside of the container main body (1) is communicated with the outside through the through hole (14), the internal pressure of the container main body (1) is reduced, and an explosion accident under abnormal overheating conditions is prevented.

[効果コ 本発明は上記構成であるから次の特有の効果を有する。[Effect Co. Since the present invention has the above configuration, it has the following unique effects.

底板(11)に形成した凹陥部(13)の透孔(14)
を低融点合金(3)によって閉塞するだけの構成である
から、安全弁が極簡単な構成で実現できる。
Through hole (14) of recess (13) formed in bottom plate (11)
The safety valve can be realized with an extremely simple structure because the structure is such that the safety valve is simply closed by the low melting point alloy (3).

低融点合金(3)は、底板(11)の外面側から透孔(
14)を閉塞するから、低融点合金(3)が半溶融状態
になった時点でも確実に透孔(14)を開放する。
The low melting point alloy (3) has through holes (
14), the through hole (14) is reliably opened even when the low melting point alloy (3) is in a semi-molten state.

従って、安全弁が不完全動作する不都合が生じない。つ
まり、凹陥部(13)を底板(11)の内面側に形成し
た場合には、低融点合金(3)が半溶融状態にあるとき
、この低融点合金(3)は圧力によって透孔(14)内
に押込まれることとなるが、上記技術的手段では、かか
る不都合が生じない。
Therefore, the inconvenience of incomplete operation of the safety valve does not occur. In other words, when the recessed portion (13) is formed on the inner surface of the bottom plate (11), when the low melting point alloy (3) is in a semi-molten state, the low melting point alloy (3) is caused by pressure to form the through hole (14). ), but with the above technical means, such inconvenience does not occur.

*請求 2の発明について この請求項2の発明は、上記請求項1の発明の安全弁を
製造する方法に関するものであり、簡単な方法によって
確実に底板(11)に形成した透孔(14)を閉塞でき
るようにすると共に、生産性を向上できるようにするも
のである。
*About the invention of claim 2 The invention of claim 2 relates to a method for manufacturing the safety valve of the invention of claim 1, and is a method of manufacturing the safety valve of the invention of claim 1, in which the through hole (14) formed in the bottom plate (11) can be reliably formed in the bottom plate (11) by a simple method. This makes it possible to close the system and improve productivity.

[技術的手段] このための請求項2の発明の技術的手段は、r密封容器
を、容器主体(1)と別体に構成した底板(11)を組
み付ける形式の容器とし、前記底板(11)を内方に屈
曲する断面形状の円板とし、この円板の中央部に内方に
陥没する凹陥部(13)を形成し、この凹陥部(13)
の中央に小さな透孔(14)を形成し、前記底板(11
)を下方に凸の姿勢で支持して前記凹陥部(13)内に
ベレット状の低融点合金(3)を収容し、この底板(1
1)を低融点合金(3)の融点以上の温度に一定時間加
熱するようにした1ことである。
[Technical Means] The technical means of the invention of claim 2 for this purpose is that the r-sealed container is a container in which a bottom plate (11) configured separately from the container main body (1) is assembled, and the bottom plate (11) is assembled with the bottom plate (11). ) is a disc with a cross-sectional shape that bends inward, and a recess (13) that recesses inward is formed in the center of this disc, and this recess (13)
A small through hole (14) is formed in the center of the bottom plate (11).
) is supported in a downwardly convex posture, and a pellet-shaped low melting point alloy (3) is accommodated in the recessed portion (13), and this bottom plate (1
1) is heated to a temperature higher than the melting point of the low melting point alloy (3) for a certain period of time.

[作用] 上記技術的手段は、次のように作用する。[Effect] The above technical means works as follows.

底板(11)を内方に屈曲する断面形状の円板とし、こ
の円板の中央部に内方に陥没する凹陥部(13)を形成
し、この凹陥部(13)の中央に透孔(14)を形成し
、前記底板(11)を下方に凸の姿勢で支持して前記凹
陥部(13)内にベレット状の低融点合金(3)を収容
するようにしたから、底板(11)の上方から投入させ
たベレット状の低融点合金(3)は確実に凹陥部(13
)内に位置する。
The bottom plate (11) is a disc with a cross-sectional shape that bends inward, and a recess (13) that recesses inward is formed in the center of the disc, and a through hole (13) is formed in the center of the recess (13). 14), the bottom plate (11) is supported in a downwardly convex posture, and the pellet-shaped low melting point alloy (3) is housed in the recessed part (13). The pellet-shaped low melting point alloy (3) introduced from above will surely fill the concave portion (13).
) is located within.

この状態で底板(11)を低融点合金(3)の融点以上
の温度に一定時間力0熱するようにしたから、この工程
を経ることにより、凹陥部(13)内に収容した低融点
合金(3)は溶融して凹陥部(13)の底部に溶融拡散
し、透孔(14)は閉塞される。このとき、透孔(14
)は凹陥部(13)の底部を貫通しているが、この透孔
(14)の直径は小さく設定されているから、低融点合
金(3)が溶融状態にあっても、それの表面張力によフ
て透孔(14)から流出しない。
In this state, the bottom plate (11) is heated to a temperature equal to or higher than the melting point of the low melting point alloy (3) for a certain period of time. (3) melts and diffuses to the bottom of the recess (13), and the through hole (14) is closed. At this time, the through hole (14
) penetrates the bottom of the recess (13), but since the diameter of this hole (14) is set small, even if the low melting point alloy (3) is in a molten state, its surface tension This prevents it from flowing out from the through hole (14).

その後、全体が常温に復帰すると、凹陥部(13)の底
部に拡散した状態のままで低融点合金(3)が硬化して
、透孔(14)が閉塞されることとなる。
Thereafter, when the entire body returns to room temperature, the low melting point alloy (3) hardens while remaining diffused at the bottom of the recess (13), and the through hole (14) is closed.

密封容器は、別体に構成した底板(11)を容器主体(
1)に組み付ける形式としたから、上記のように低融点
合金(3)が溶融結合した底板(11)を容器主体(1
)に組み付けると、密封容器が完成する。
In a sealed container, a separately configured bottom plate (11) is used as the main body of the container (
1), the bottom plate (11) to which the low melting point alloy (3) is fused is attached to the main body of the container (1).
) to complete the sealed container.

[効果コ 本発明は上記構成であるから次の特有の効果を有する。[Effect Co. Since the present invention has the above configuration, it has the following unique effects.

低融点合金(3)のベレット(P)を底板(11)の上
方から投入するだけで、このベレットが確実に凹陥部(
13)の所定の位置に置かれ、低融点合金(3)の溶融
状態で確実に透孔(14)を閉塞するから、不良品が生
じにくく生産性が優れたものとなる。
By simply inserting the pellet (P) of the low melting point alloy (3) from above the bottom plate (11), the pellet will reliably fill the recess (
13), and the molten state of the low melting point alloy (3) reliably closes the through hole (14), which makes it difficult to produce defective products and improves productivity.

[実施例] 以下、本発明の実施例を第1図から第3図に基いて説明
する。
[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

この実施例は、エアーゾル容器に実施したものであり、
この種の密封容器では、内部に高圧ガスが充填される。
This example was implemented on an aerosol container,
This type of sealed container is filled with high pressure gas.

そして、密封容器は、バルブ装置(V)を具備させた蓋
板(10)をカシメ止めした容器主体(1)と、この容
器主体(1)の下端開放部に装着される底板(11)と
から構成される。
The sealed container includes a container main body (1) having a lid plate (10) provided with a valve device (V) secured by caulking, and a bottom plate (11) attached to the open lower end of the container main body (1). It consists of

この底板(11)は、同図及び第2図に示すように、全
体が容器主体(1)の内方に屈曲する球面状となってお
り、その中央に内方に屈曲する凹陥部(13)が形成さ
れており、底板(11)の周縁部が容器主体(1)の下
端開放部にカシメ止めによって組み付けられる。
As shown in the same figure and FIG. ), and the peripheral edge of the bottom plate (11) is assembled to the open lower end of the container main body (1) by caulking.

この実施例では、この凹陥部〈13)をも球面状とし、
この凹陥部(13)の直径を511I11〜B+am程
度に設定し、その中央に、透孔(14)を穿設しである
。この透孔(14)は、直径0.!lvm 〜2.Om
+a程度としである。そじて、この凹陥部(13)の底
壁の略全面を被覆するように低融点合金(3)が溶融結
合されている。このとき、低融点合金の重量は0.3g
〜0.8g程度が適当で、低融点合金の厚さはり、5t
rrtnとなる。
In this embodiment, this recessed portion <13) is also made spherical,
The diameter of this concave portion (13) is set to approximately 511I11~B+am, and a through hole (14) is bored in the center thereof. This through hole (14) has a diameter of 0. ! lvm ~2. Om
It is about +a. Then, the low melting point alloy (3) is fused and bonded so as to cover substantially the entire bottom wall of the recess (13). At this time, the weight of the low melting point alloy is 0.3g
~0.8g is appropriate, and the thickness of the low melting point alloy is 5t.
It becomes rrtn.

尚、この低融点合金(3)の融点は、この実施例のもの
では95℃〜180℃に設定し゛ているが、好ましくけ
、100℃〜150℃に設定する。密封容器の使用条件
によっては、この温度よりも低く又はこの温度よりも高
く設定することも可能である。
The melting point of the low melting point alloy (3) is set at 95 DEG C. to 180 DEG C. in this example, but preferably at 100 DEG C. to 150 DEG C. Depending on the usage conditions of the sealed container, it is also possible to set the temperature lower or higher than this temperature.

上記実施例の容器に用いる底板(11)に低融点合金(
3)を溶融結合するには、第3図に示すような方法を採
用する。
The bottom plate (11) used in the container of the above example has a low melting point alloy (
3), a method as shown in FIG. 3 is adopted for melting and bonding.

この方法では、加熱炉(4)を通過するように、コンベ
ア(41)が配設され、このコンベア(41)の移送方
向で前記加熱炉(4)の上流側に低融点合金(3)のベ
レット(P)を収容したホッパー(42)が位置する。
In this method, a conveyor (41) is disposed so as to pass through the heating furnace (4), and a low melting point alloy (3) is placed upstream of the heating furnace (4) in the conveying direction of the conveyor (41). A hopper (42) containing pellets (P) is located.

前記コンベア(41)には、底板(11)を下方に凸の
姿勢で支持する支持台(43) (43)が所定の間隔
で連続的に配設されており、この各支持台(43)に底
板(11)を載置して所定の速さでコンベア(41)を
走行させる。
On the conveyor (41), support stands (43) (43) that support the bottom plate (11) in a downwardly convex posture are successively arranged at predetermined intervals, and each support stand (43) The bottom plate (11) is placed on the conveyor (41) and the conveyor (41) is run at a predetermined speed.

N 記ホッパー(42)の出口部には、ベレット(P)
(P)を1つづつ落下させる投入装置(5)が設けられ
ており、この投入装置(5)は底板(11)を検知する
検知装置(51)からの出力によって所定のタイミング
で動作する。
N At the exit of the hopper (42), there is a pellet (P).
A loading device (5) for dropping (P) one by one is provided, and this loading device (5) operates at a predetermined timing based on an output from a detection device (51) that detects the bottom plate (11).

従って、この検知装置(51)がホッパー(42)の出
口の下方に底板(11)が位置したことを検知すると、
この時の出力によって投入装置(5)が動作してホッパ
ー(42)から一つのペレット(P)が落下せしめられ
、コンベア(41)の走行に伴って底板(11)がホッ
パー(42)の下方に位置する度に、前記動作が繰り返
される。
Therefore, when this detection device (51) detects that the bottom plate (11) is located below the outlet of the hopper (42),
The input device (5) is operated by the output at this time, causing one pellet (P) to fall from the hopper (42), and as the conveyor (41) runs, the bottom plate (11) is moved below the hopper (42). The above operation is repeated each time the camera is located at .

上記のような手順によって底板(11)内に投入される
ペレット(P)は、凹陥部(13)内に正確には投入さ
れないが、底板(11)が支持台(43) (43)に
よって支持された姿勢では、上面側が凹面状(球状)と
なフているから、底板(11)内に投入されたペレット
(P)は確実に凹陥部(13)内に位置する。
The pellets (P) thrown into the bottom plate (11) by the above procedure are not exactly thrown into the recessed part (13), but the bottom plate (11) is supported by the supports (43) (43). In this position, since the upper surface side is concave (spherical), the pellet (P) introduced into the bottom plate (11) is reliably located in the recess (13).

又、この凹陥部(13)も凹面状(球状)となっている
から、この凹陥部(13)内に位置したペレットCP)
が、これの中央に位置する透孔(14)と一致する。
Moreover, since this concave portion (13) is also concave (spherical), the pellet CP located within this concave portion (13)
coincides with the through hole (14) located in the center of this.

このように、透孔(14)に一致するようにペレット(
P)を収容した状態で各底板(11)がコンベア(41
)の走行に伴って加熱炉(4)内送り込まれると、この
加熱炉(4)内の雰囲気温度は、低融点合金(3)の融
点よりも高く設定しであるから、又、この加熱炉(4)
の長さを所定に設定しであるから、この加熱炉(4)を
通過する間に、凹陥部(13)に収容されたペレット(
P)が溶融して凹陥部(13)の底壁に溶融拡散する。
In this way, the pellet (
P), each bottom plate (11) is moved to the conveyor (41
) is fed into the heating furnace (4) as the alloy (3) travels, the atmospheric temperature in the heating furnace (4) is set higher than the melting point of the low melting point alloy (3). (4)
Since the length of the pellet is set to a predetermined value, the pellet (
P) melts and diffuses onto the bottom wall of the recess (13).

この実施例では、この加熱炉(4)の下流側に空冷装置
(6)を配設してあり、これを通過する間に凹陥部(1
3)の底部に拡散溶融した低融点合金(3)が硬化して
、これが凹陥部(13)の底壁に溶融結合され、透孔(
14)が閉塞される。
In this embodiment, an air cooling device (6) is provided downstream of this heating furnace (4), and while passing through this, a concave portion (1) is provided.
The low melting point alloy (3) diffused and melted at the bottom of the hole (3) hardens and is melted and bonded to the bottom wall of the recess (13), forming the through hole (13).
14) is occluded.

このようにして透孔(14)を低融点合金(3)によっ
て閉塞した底板(11)を容器主体(1)の下端開放部
にカシメ化めすると、密封容器が完成する。
When the bottom plate (11) whose through holes (14) are thus closed with the low melting point alloy (3) is caulked to the open lower end of the container body (1), a sealed container is completed.

エアーゾル容器の場合には、この密封容器内に高圧ガス
体が封入されるが、この高圧ガス体の封入作業は公知の
方法によって行う。尚、場合によっては、底板(11)
の底部に前記高圧ガス体封入用の弁体を別個に配設して
もよい。
In the case of an aerosol container, a high-pressure gas is sealed in the sealed container, and the operation of filling the high-pressure gas is carried out by a known method. In addition, in some cases, the bottom plate (11)
A valve body for sealing the high-pressure gas body may be separately provided at the bottom of the valve body.

高圧室で液化ガスを充填し且底板をカシメ化めする場合
のように、特殊な高圧ガス充填装置を用いる場合には、
前記高圧ガス充填用の弁体は不要である。
When using a special high-pressure gas filling device, such as when filling a high-pressure chamber with liquefied gas and caulking the bottom plate,
The valve body for filling the high-pressure gas is not required.

上記実施例に用いる低融点合金としては、公知の種々の
合金が使用できる。例えばハンダ等が使用できる。尚、
この種合金としては、ビスマス。
As the low melting point alloy used in the above embodiments, various known alloys can be used. For example, solder can be used. still,
Bismuth is an example of this type of alloy.

鉛、錫の合金等が一般的であり、このものでは、前記各
成分の比率を替えることによって種々の融点が設定でき
る。例えば、50℃程度の低温度で溶融する合金も製作
できる。
An alloy of lead and tin is commonly used, and various melting points can be set by changing the ratio of each component. For example, alloys that melt at temperatures as low as 50° C. can also be manufactured.

上記実施例では、エアーゾル容器の底部に安全弁を具備
させたが、他の形式の密封容器に本発明の安全弁が採用
可能であることは言うまでもなく、又、請求項1の発明
においては、底板(11)を必ずしも内方に凸の断面形
状とする必要はない。
In the above embodiment, the safety valve of the present invention is provided at the bottom of the aerosol container, but it goes without saying that the safety valve of the present invention can be employed in other types of sealed containers. 11) does not necessarily have to have an inwardly convex cross-sectional shape.

更に、請求項2の発明においては、底板(11)を円錐
状等のように中央部が外周部から徐々に内方に突出する
形状であれば、必ずしも、この底板(11)を球面状と
する必要はない。凹陥部(13)についてもこれを略球
面状とする必要もない。
Furthermore, in the invention of claim 2, if the bottom plate (11) has a shape such as a conical shape in which the center part gradually projects inward from the outer peripheral part, the bottom plate (11) does not necessarily have a spherical shape. do not have to. There is no need for the recessed portion (13) to be approximately spherical.

さらに、ペレット(P)の投入を人手によって行うよう
にしてもよく、又、空冷装置(6)を用いることなく自
然放冷によって低融点合金(3)を硬化させてもよい。
Furthermore, the pellets (P) may be added manually, or the low melting point alloy (3) may be hardened by natural cooling without using the air cooling device (6).

【図面の簡単な説明】[Brief explanation of drawings]

第1図は請求項1の発明の実施例の断面図、第2図は底
板(11)の要部の詳細図、第3図はこの密封容器の安
全弁付の底板(11)の製造方法の説明図であり請求項
2の発明の実施例である。第4図は従来の安全弁の説明
図であり、図中。 (1)・・・容器主体 (11)・・・底板 (13)・・・凹陥部 (14)・・・透孔 (3)・・・低融点合金
Fig. 1 is a sectional view of an embodiment of the invention of claim 1, Fig. 2 is a detailed view of the main part of the bottom plate (11), and Fig. 3 is a method of manufacturing the bottom plate (11) with a safety valve of this sealed container. It is an explanatory diagram and an embodiment of the invention of claim 2. FIG. 4 is an explanatory diagram of a conventional safety valve. (1)...Container body (11)...Bottom plate (13)...Concave portion (14)...Through hole (3)...Low melting point alloy

Claims (1)

【特許請求の範囲】 [1]、容器主体(1)内を密封した容器の異常過熱防
止用の安全弁において、容器主体(1)の底板(11)
に内方に屈曲する凹陥部(13)を形成し、この凹陥部
(13)に小さな透孔(14)を穿設し、この透孔(1
4)を底板(11)の外面側において前記凹陥部(13
)内に溶融結合させた低融点合金(3)によって閉塞し
、前記低融点合金(3)の融点を異常過熱条件下で溶融
する程度の温度に設定した密封容器の安全弁。 [2]、容器主体(1)内を密封した容器の異常過熱防
止用の安全弁の製造方法において、密封容器を、容器主
体(1)と別体に構成した底板(11)を組み付ける形
式の容器とし、前記底板(11)を内方に屈曲する断面
形状の円板とし、この円板の中央部に内方に陥没する凹
陥部(13)を形成し、この凹陥部(13)の中央に小
さな透孔(14)を形成し、前記底板(11)を下方に
凸の姿勢で支持して前記凹陥部(13)内にペレット状
の低融点合金(3)を収容し、この底板(11)を低融
点合金(3)の融点以上の温度に一定時間加熱するよう
にした密封容器の安全弁の製造方法。
[Claims] [1] In a safety valve for preventing abnormal overheating of a container whose inside is sealed, the bottom plate (11) of the container main body (1)
A recessed part (13) is formed to bend inward, a small through hole (14) is bored in this recessed part (13), and this through hole (14) is formed.
4) on the outer surface side of the bottom plate (11).
) A safety valve for a sealed container closed by a low melting point alloy (3) melted and bonded within the container, the melting point of the low melting point alloy (3) being set to a temperature such that it melts under abnormal overheating conditions. [2] In the method for manufacturing a safety valve for preventing abnormal overheating of a container whose inside is sealed, the sealed container is assembled with a bottom plate (11) formed separately from the container main body (1). The bottom plate (11) is a disc with a cross-sectional shape that bends inward, and a recess (13) that recesses inward is formed in the center of the disc. A small through hole (14) is formed, the bottom plate (11) is supported in a downwardly convex posture, and a pellet-shaped low melting point alloy (3) is accommodated in the recessed part (13). ) is heated to a temperature higher than the melting point of the low melting point alloy (3) for a certain period of time.
JP2046526A 1990-02-26 1990-02-26 Manufacturing method of sealed container with safety valve Expired - Lifetime JP2582305B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2046526A JP2582305B2 (en) 1990-02-26 1990-02-26 Manufacturing method of sealed container with safety valve
US07/658,689 US5154201A (en) 1990-02-26 1991-02-21 Method of manufacturing a sealed vessel having a safety valve
US07/903,918 US5320127A (en) 1990-02-26 1992-06-25 Safety valve of a sealed vessel and a method for manufacturing the safety valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2046526A JP2582305B2 (en) 1990-02-26 1990-02-26 Manufacturing method of sealed container with safety valve

Publications (2)

Publication Number Publication Date
JPH03249486A true JPH03249486A (en) 1991-11-07
JP2582305B2 JP2582305B2 (en) 1997-02-19

Family

ID=12749725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2046526A Expired - Lifetime JP2582305B2 (en) 1990-02-26 1990-02-26 Manufacturing method of sealed container with safety valve

Country Status (1)

Country Link
JP (1) JP2582305B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610186U (en) * 1992-07-13 1994-02-08 杉浦 由利 Containers such as internal pressure sprayers
JPH0769386A (en) * 1993-08-27 1995-03-14 Seiichi Kitabayashi Method and device for preventing break of pressure container

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5021334A (en) * 1973-06-28 1975-03-06
JPS5125610A (en) * 1974-08-28 1976-03-02 Nissan Motor TOOCHITENKASHIKIKIKAN NO NENSHOSHIT SUSOCHI
JPS5256417A (en) * 1976-10-18 1977-05-09 Niigata Engineering Co Ltd Process for solubilizing cock

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5021334A (en) * 1973-06-28 1975-03-06
JPS5125610A (en) * 1974-08-28 1976-03-02 Nissan Motor TOOCHITENKASHIKIKIKAN NO NENSHOSHIT SUSOCHI
JPS5256417A (en) * 1976-10-18 1977-05-09 Niigata Engineering Co Ltd Process for solubilizing cock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0610186U (en) * 1992-07-13 1994-02-08 杉浦 由利 Containers such as internal pressure sprayers
JPH0769386A (en) * 1993-08-27 1995-03-14 Seiichi Kitabayashi Method and device for preventing break of pressure container

Also Published As

Publication number Publication date
JP2582305B2 (en) 1997-02-19

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