JPH031574B2 - - Google Patents
Info
- Publication number
- JPH031574B2 JPH031574B2 JP61259551A JP25955186A JPH031574B2 JP H031574 B2 JPH031574 B2 JP H031574B2 JP 61259551 A JP61259551 A JP 61259551A JP 25955186 A JP25955186 A JP 25955186A JP H031574 B2 JPH031574 B2 JP H031574B2
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- gas
- needle
- prevention device
- flashback
- 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.)
- Expired - Lifetime
Links
- 239000007789 gas Substances 0.000 claims description 54
- 239000001301 oxygen Substances 0.000 claims description 49
- 229910052760 oxygen Inorganic materials 0.000 claims description 49
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 48
- 230000002265 prevention Effects 0.000 claims description 29
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000003449 preventive effect Effects 0.000 description 10
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000004071 soot Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000003110 anti-inflammatory effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、酸素とガスを用いて鉄材を溶断した
り加熱する際に使用されるガス溶断機における逆
火防止装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a flashback prevention device in a gas cutter used when cutting or heating iron materials using oxygen and gas.
［従来技術］
従来のガス溶断機の場合、その着火操作時或い
は消化操作時に逆火が起り、この逆火がホースを
通つてボンベにまでバツクすると大変危険である
ことから、ガス溶断機の根元であつてボンベから
のホースを接続する部分、すなわちガス供給口に
逆火防止装置が組み込まれている。[Prior art] In the case of conventional gas fusing machines, backfire occurs during ignition or extinguishing operations, and it is very dangerous if this backfire travels through the hose and reaches the cylinder. A flashback prevention device is built into the part where the hose from the cylinder is connected, that is, the gas supply port.
しかし、この従来例においては一旦逆火が起る
と火が溶断機内のガス通路をバツクするため、溶
断機自体が極めて高温となり、手で持つているこ
とが不可能になつたり、極端な場合には火傷を負
つたり溶断機自体が溶損したりする危険がある。
そこで、実開昭56−23817号公報に記載された熔
断機のように、ニードル部分をとり囲むように逆
火防止用の消炎フイルターを取り付けてハンドル
側に逆火が侵入しないように構成したものが公知
である。 However, in this conventional example, once a backfire occurs, the flame backs up the gas passage inside the fuser, causing the fuser itself to become extremely hot, making it impossible to hold it by hand, or in extreme cases. There is a risk of burns or damage to the cutter itself.
Therefore, like the melting machine described in Japanese Utility Model Application Publication No. 56-23817, a flame extinguishing filter for preventing backfire is attached to surround the needle part to prevent backfire from entering the handle side. is publicly known.
［従来技術の課題］
しかし、上記公知例においては次のような問題
がある。[Problems with Prior Art] However, the above-mentioned known examples have the following problems.
ａ 逆火がニードルノズルをとり囲む消炎フイル
ターの部分で止るため、この消炎フイルターの
目に詰まつたすすが剥離してニードル部に付着
し、ニードル部の制御性能に悪い影響を及ぼ
す。そこで、しばしばニードル部分の掃除を行
う必要があり、大変面倒である。a) Since the flashback stops at the flame-extinguishing filter that surrounds the needle nozzle, the soot that clogs the flame-extinguishing filter peels off and adheres to the needle, which adversely affects the control performance of the needle. Therefore, it is necessary to frequently clean the needle portion, which is very troublesome.
ｂ 消炎フイルターは消耗品のため、新品のもの
と時々交換する必要があるが、この消炎フイル
ターはニードル部分をとり囲んでいるため、そ
の都度ニードル部分を分解する必要があつて面
倒である。b. The anti-inflammatory filter is a consumable item and needs to be replaced with a new one from time to time. However, since the anti-inflammatory filter surrounds the needle, the needle needs to be disassembled each time, which is troublesome.
本発明はニードル部分にすすが付着せず、簡単
に逆火防止具を取り出して掃除したり新品のもの
と交換できる逆火防止装置を提案するのが目的で
ある。 It is an object of the present invention to provide a flashback prevention device that does not allow soot to adhere to the needle portion and allows the flashback prevention device to be easily removed and cleaned or replaced with a new one.
［課題を解決するための手段］
本発明は上記目的を達成する手段として次の如
き構成を採用するものである。[Means for Solving the Problems] The present invention employs the following configuration as a means for achieving the above object.
把手部の根元側にガス供給口と酸素供給口を設
け、把手部の前方に火口を配し、この火口と把手
部の先端側に形成した制御部とを酸素パイプ及び
混合ガスパイプにて連結し、更に前記制御部内に
おいて酸素通路を分岐して制御部内のガス通路に
形成したニードル式混合部の上流側に連絡する酸
素分岐通路を設けた構成のガス溶断機において、
前記制御部の側面にガス通路内に至る逆火防止具
挿入口を形成し、この逆火防止具挿入口内にプラ
グを介して逆火防止具を着脱自在に挿入して成る
ガス溶断機における逆火防止装置。 A gas supply port and an oxygen supply port are provided at the base of the handle, a crater is placed in front of the handle, and this crater is connected to a control section formed at the tip of the handle using an oxygen pipe and a mixed gas pipe. Further, in a gas cutting machine configured to further include an oxygen branch passage connected to an upstream side of a needle-type mixing part formed in the gas passage in the control part by branching the oxygen passage in the control part,
A backfire preventive device insertion port is formed on the side surface of the control section leading into the gas passage, and the backfire preventive device is removably inserted into the backfire preventive device insertion port via a plug. Fire prevention device.
上記逆火防止装置を有する溶断機の作用を次に
説明する。先ず、ガス及び酸素ボンベからホース
を経由して供給されたガスと酸素はガス供給口と
酸素供給口から溶断機内に入り、ガスはガス通路
を通つて逆火防止部の逆火防止具を通り、ニード
ル式混合部において酸素供給口から酸素分岐通路
を通つてこの混合部に入つた酸素と混合し、混合
ガスパイプを通つて火口に至り、この火口で着火
して加熱作業に供せられる。一方酸素供給口から
入つた酸素は制御部内で前記酸素分岐通路側に分
岐され、残部はジエツト調整弁を経由して酸素パ
イプ（ジエツトパイプ）を通り、火口に至り、前
記混合ガスと火口で混合して切断作業に供せられ
る。このようなガス溶断機において逆火が発生す
ると、この逆火は逆火防止具の処で阻止され、こ
れ以上はバツクしない。このしばしばの逆火によ
り逆火防止具にすすが付着し、性能が低下した場
合には、プラグを挿入口から取り出し、掃除を行
うか、プラグから逆火防止具を取り外して新品の
ものと交換し、再びプラグを利用して挿入口内に
セツトする。 The operation of the fuse cutter having the above-mentioned flashback prevention device will be explained next. First, gas and oxygen supplied from gas and oxygen cylinders via hoses enter the fuser from the gas supply port and oxygen supply port, and the gas passes through the flashback prevention device of the flashback prevention section through the gas passage. In the needle-type mixing section, the mixed gas is mixed with oxygen that enters the mixing section from the oxygen supply port through the oxygen branch passage, passes through the mixed gas pipe to the crater, is ignited at the crater, and is used for heating work. On the other hand, the oxygen that entered from the oxygen supply port is branched to the oxygen branch passage side in the control unit, and the remainder passes through the jet regulating valve and the oxygen pipe (jet pipe), reaches the crater, and mixes with the mixed gas at the crater. It is used for cutting work. When a flashback occurs in such a gas cutter, the flashback is stopped by the flashback prevention device and does not flare up any further. If this frequent backfire causes soot to adhere to the flashback preventive device and its performance deteriorates, remove the plug from the insertion slot and clean it, or remove the flashback preventive device from the plug and replace it with a new one. Then, use the plug again to insert it into the insertion slot.
［実施例］
図は本発明に係る逆火防止装置を組み込んだガ
ス溶断機の一例を示すもので、１は、把手部２及
び制御部３及び火口４並びに制御部３と火口４間
を連結している酸素パイプ５、混合ガスパイプ６
から成る溶断機本体である。[Example] The figure shows an example of a gas cutting machine incorporating a flashback prevention device according to the present invention, and 1 indicates a connection between a handle portion 2, a control portion 3, and a nozzle 4, and a connection between the control portion 3 and the nozzle 4. Oxygen pipe 5, mixed gas pipe 6
This is the main body of the fusing machine.
７は把手部２の根元に設けられたガス供給口に
して、このガス供給口７はガスボンベとホースを
介して連結される。８は前記ガス供給口６に隣接
して把手部２の根元に設けられた酸素供給口にし
て、酸素ボンベとホースを介して連結される。９
はガス供給口７に取り付けられたガス開閉弁、１
０はガス開閉弁ツマミ、１１は前記ガス供給口７
から供給されたガスが把手部２及び制御部３内を
通り、制御部内３に設けたニードル式混合部１３
に至るガス通路である。１２は前記酸素供給口８
から供給された酸素が把手部２内及び制御部３内
の酸素調整弁（ジエツト調整弁）１４を通り、酸
素パイプ５から火口４に至る酸素通路である。１
５は前記酸素通路１２において、酸素調整弁１４
に至る前であつて制御部３内において分岐した酸
素分岐通路にして、この酸素分岐通路１５は前記
ニードル式混合部１３の上流側に連結されてい
る。 Reference numeral 7 designates a gas supply port provided at the base of the handle portion 2, and this gas supply port 7 is connected to a gas cylinder via a hose. Reference numeral 8 designates an oxygen supply port provided at the base of the handle portion 2 adjacent to the gas supply port 6, and is connected to an oxygen cylinder via a hose. 9
is a gas on-off valve attached to the gas supply port 7, 1
0 is the gas on-off valve knob, 11 is the gas supply port 7
The gas supplied from the gas passes through the handle part 2 and the control part 3, and then passes through the needle type mixing part 13 provided in the control part 3.
This is the gas passage leading to. 12 is the oxygen supply port 8
This is an oxygen passage through which oxygen supplied from the oxygen pipe 5 passes through an oxygen regulating valve (jet regulating valve) 14 in the handle part 2 and the control part 3, and reaches the crater 4 from the oxygen pipe 5. 1
5 is an oxygen regulating valve 14 in the oxygen passage 12;
This oxygen branch passage 15 is connected to the upstream side of the needle-type mixing part 13, and is an oxygen branch passage branched within the control section 3 before reaching the oxygen branch passage 15.
１６は前記ガス通路１１において、ニードル式
混合部１３に至る前であつて制御部３内に形成さ
れた逆火防止部にして、この逆火防止部１６は第
７図に示すように制御部３の側壁３′からガス通
路１１に至るように逆火防止具挿入口１９を開口
し、ここに逆火防止具挿入口１９にプラグ１８を
介して焼結金属製の逆火防止具２０を挿入した構
成である。実施例の場合逆火防止具としては焼結
金属２０が使用され、この焼結金属２０は前記プ
ラグ１８に接着剤を用いて接着してある。但し、
この接着剤はあとで剥離が可能である。 Reference numeral 16 denotes a flashback prevention section formed in the control section 3 before reaching the needle type mixing section 13 in the gas passage 11, and this flashback prevention section 16 is connected to the control section as shown in FIG. A flashback preventive device insertion port 19 is opened from the side wall 3' of 3 to the gas passage 11, and a flashback preventive device 20 made of sintered metal is inserted into the flashback preventive device insertion port 19 via a plug 18. This is the inserted configuration. In this embodiment, a sintered metal 20 is used as the flashback prevention device, and this sintered metal 20 is bonded to the plug 18 using an adhesive. however,
This adhesive can be removed later.
２１は前記ニードル式混合部１３内において、
混合ガスの量を調整するためのニードル弁にし
て、２２はニードルツマミ、２３は前記酸素調整
弁１４の酸素調整ツマミである。 21 is in the needle type mixing section 13,
A needle valve is used to adjust the amount of the mixed gas, and 22 is a needle knob, and 23 is an oxygen adjustment knob of the oxygen adjustment valve 14.
なお、上記実施例は自動着火装置付ではないの
で、ライターにより火口４に着火を行なうように
なるが、必要な場合にはパイロツトバーナを火口
４の近傍に取り付け、ガスの一部を分岐してこの
パイロツトバーナに供給し、パイロツトバーナに
例えば圧電着火してこのパイロツトバーナから火
口４に火移りを行なわせるようにしてもよい。 In addition, since the above embodiment is not equipped with an automatic ignition device, the fire pit 4 is ignited with a lighter, but if necessary, a pilot burner is attached near the fire pit 4 and a part of the gas is branched off. The fuel may be supplied to the pilot burner, and the pilot burner may be ignited piezoelectrically, for example, to cause the flame to transfer from the pilot burner to the crater 4.
次に上記実施例についてその作用を説明する。 Next, the operation of the above embodiment will be explained.
先ずガス溶断を行う前には作業上溶断部の加熱
を必要とする。そこで、この加熱を行なうにはガ
ス供給口７及び酸素供給口８から入つたガスと酸
素をニードル式混合部１３で混合し、これを火口
４に送り、この着火炎を利用して加熱を行なう。
加熱炎の調整はガス開閉弁９によりガスの量を調
整し、ニードル弁２１により混合ガスの送り出し
量を調整して行なう。加熱が終了したなら、酸素
調整弁１４をそのツマミ２３を利用して開放し、
大量の酸素を酸素通路１２から酸素パイプ５を介
して火口４に送り出す。大量の酸素が供給される
と火口４にはハードな火炎が形成されるので、こ
の火炎を利用して溶断作業を行なうことになる。
この溶断作業が終了したなら酸素調整弁１４及び
ニードル弁２１を閉じて火口４の火を消す。 First, before performing gas cutting, it is necessary to heat the cutting part for operational reasons. Therefore, in order to perform this heating, the gas and oxygen that entered from the gas supply port 7 and the oxygen supply port 8 are mixed in the needle type mixing part 13, and this is sent to the crater 4, and heating is performed using this ignition flame. .
The heating flame is adjusted by adjusting the amount of gas with the gas on-off valve 9 and adjusting the amount of mixed gas sent out with the needle valve 21. When heating is completed, open the oxygen regulating valve 14 using its knob 23,
A large amount of oxygen is sent from an oxygen passage 12 to a crater 4 via an oxygen pipe 5. When a large amount of oxygen is supplied, a hard flame is formed at the crater 4, and this flame is used to perform the fusing operation.
When this fusing operation is completed, the oxygen regulating valve 14 and the needle valve 21 are closed to extinguish the fire in the crater 4.
上記のようにして溶断作業は行なわれるが、万
一逆火が起つた場合、この火は混合ガスパイプ６
内からニードル式混合部１３内に入り、ここから
逆火防止部１６内に入る。しかし、この逆火防止
部１６内において焼結金属２０により火の走りは
阻止され、これ以上バツクはしない。逆火現象は
作業上比較的多発するため、焼結金属２０にはカ
ーボン（すす）が付着して目詰りを起すので、こ
のような状態になつたら逆火防止具挿入口１９か
らプラグ１８を取り外して焼結金属２０をとり出
し、ブラシを用いて水洗いをするか、駄目な場合
には焼結金属２０を新品に交換する。 The fusing operation is carried out as described above, but in the unlikely event that a backfire occurs, this fire will
It enters the needle-type mixing section 13 from inside, and from there it enters the flashback prevention section 16. However, the sintered metal 20 in this backfire prevention part 16 prevents the fire from running and does not cause any further backfire. Since flashback phenomenon occurs relatively frequently during work, carbon (soot) adheres to the sintered metal 20 and causes clogging, so if such a situation occurs, remove the plug 18 from the flashback prevention device insertion port 19. Remove it, take out the sintered metal 20, and wash it with water using a brush, or if that fails, replace the sintered metal 20 with a new one.
［本発明の効果］
本発明は以上のように、制御部の側面に逆火防
止具挿入口を設け、ここにプラグを利用して逆火
防止具を取り付けるようにした。この結果、次の
如き効果を期待できる。[Effects of the Present Invention] As described above, the present invention provides a flashback preventive device insertion opening on the side surface of the control unit, and the flashback preventive device is attached thereto using a plug. As a result, the following effects can be expected.
ａ 逆火防止具はニードル部分に挿入されていな
いため、この逆火防止具に付着したカーボン
（すす）がニードル部分に落下して付着する心
配がないので、ニードルの性能が低下したり、
頻繁にこのニードル部分を掃除する必要がなく
便利である。a Since the flashback prevention device is not inserted into the needle part, there is no risk that carbon (soot) adhering to the flashback prevention device will fall and adhere to the needle part, causing the performance of the needle to deteriorate or
It is convenient because there is no need to frequently clean this needle part.
ｂ 逆火防止具はプラグを抜きとるだけで一緒に
取り出したり挿入できるため前記公知例のよう
にいちいちニードル部分を分解する必要がな
く、逆火防止具の掃除と交換を極めて簡単に行
うことができて便利である。b The flashback prevention device can be taken out and inserted by simply pulling out the plug, so there is no need to disassemble the needle part each time as in the above-mentioned known example, and the flashback prevention device can be cleaned and replaced extremely easily. It's convenient to do.
第１図は本発明に係る逆火防止装置を組み込ん
だガス溶断機の正面図、第２図は平面図、第３図
はＡ−Ａ線断面図、第４図はＢ−Ｂ線断面図、第
５図はＣ−Ｃ線拡大断面図、第６図はプラグと逆
火防止具の一部断面図である。
１……溶断機本体、２……把手部、３……制御
部、４……火口、５……酸素パイプ、６……混合
ガスパイプ、７……ガス供給口、８……酸素供給
口、９……ガス開閉弁、１０……ガス開閉弁ツマ
ミ、１１……ガス通路、１２……酸素通路、１３
……ニードル式混合部、１４……酸素調整弁（ジ
エツト調整弁）、１５……酸素分岐通路、１６…
…逆火防止部、１７……逆火防止具、１８……プ
ラグ、１９……逆火防止具挿入口、２０……焼結
金属、２１……ニードル弁、２２……ニードルツ
マミ、２３……酸素調整ツマミ。
Fig. 1 is a front view of a gas cutting machine incorporating a flashback prevention device according to the present invention, Fig. 2 is a plan view, Fig. 3 is a sectional view taken along line A-A, and Fig. 4 is a sectional view taken along line B-B. , FIG. 5 is an enlarged cross-sectional view taken along the line CC, and FIG. 6 is a partial cross-sectional view of the plug and flashback prevention device. DESCRIPTION OF SYMBOLS 1... Fusing machine main body, 2... Handle part, 3... Control part, 4... Crater, 5... Oxygen pipe, 6... Mixed gas pipe, 7... Gas supply port, 8... Oxygen supply port, 9...Gas on/off valve, 10...Gas on/off valve knob, 11...Gas passage, 12...Oxygen passage, 13
... Needle type mixing section, 14 ... Oxygen adjustment valve (jet adjustment valve), 15 ... Oxygen branch passage, 16 ...
...Flashback prevention part, 17...Flashback prevention device, 18...Plug, 19...Flashback prevention device insertion port, 20...Sintered metal, 21...Needle valve, 22...Needle knob, 23... ...Oxygen adjustment knob.
Claims (1)
設け、把手部の前方に火口を配し、この火口と把
手部の先端側に形成した制御部とを酸素パイプ及
び混合ガスパイプにて連結し、更に前記制御部内
において酸素通路を分岐して制御部内のガス通路
に形成したニードル式混合部の上流側に連絡する
酸素分岐通路を設けた構成のガス溶断機におい
て、前記制御部の側面にガス通路内に至る逆火防
止具挿入口を形成し、この逆火防止具挿入口内に
プラグを介して逆火防止具を着脱自在に挿入して
成るガス溶断機における逆火防止装置。1 A gas supply port and an oxygen supply port are provided at the base of the handle, a crater is placed in front of the handle, and this crater is connected to the control unit formed at the tip of the handle using an oxygen pipe and a mixed gas pipe. Further, in the gas cutting machine, the oxygen branch passage is provided in the control part, and the oxygen branch passage is connected to the upstream side of the needle-type mixing part formed in the gas passage in the control part. A flashback prevention device for a gas cutting machine, which comprises a flashback prevention device insertion port that extends into a gas passage, and a flashback prevention device that is detachably inserted into the flashback prevention device insertion port via a plug.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61259551A JPS63113212A (en) | 1986-10-29 | 1986-10-29 | Backfire preventing device for gas fusing device |
| GB8712897A GB2191134B (en) | 1986-06-04 | 1987-06-02 | A gas cutting torch |
| KR1019870005575A KR910003860B1 (en) | 1986-06-04 | 1987-06-02 | Back-fire preventive unit in a gas cutting torch |
| US07/057,793 US4806096A (en) | 1986-06-04 | 1987-06-03 | Back-fire preventive unit in a gas cutting torch |
| FR878707743A FR2599816B1 (en) | 1986-06-04 | 1987-06-03 | FLAME ANTI-RETURN DEVICE FOR GAS FUSION CUTTING APPARATUS |
| DE19873718617 DE3718617A1 (en) | 1986-06-04 | 1987-06-03 | CUTTING TORCH WITH FLAME RETURN CONTROL |
| CA000538660A CA1278999C (en) | 1986-06-04 | 1987-06-03 | Back-fire preventive unit in a gas cutting torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61259551A JPS63113212A (en) | 1986-10-29 | 1986-10-29 | Backfire preventing device for gas fusing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63113212A JPS63113212A (en) | 1988-05-18 |
| JPH031574B2 true JPH031574B2 (en) | 1991-01-10 |
Family
ID=17335682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61259551A Granted JPS63113212A (en) | 1986-06-04 | 1986-10-29 | Backfire preventing device for gas fusing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63113212A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100799356B1 (en) | 2007-07-26 | 2008-01-30 | 제이아이산업(주) | Cock-pin handle with stopper function |
| KR100827836B1 (en) | 2007-10-20 | 2008-05-07 | 제이아이산업(주) | Safety handle for gas torch with stopper function |
| EP3952297A4 (en) * | 2019-05-07 | 2022-05-04 | Agc Inc. | Display system, display method, and transparent display body |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5623817B2 (en) * | 1973-06-26 | 1981-06-02 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6226667Y2 (en) * | 1979-07-24 | 1987-07-08 |
-
1986
- 1986-10-29 JP JP61259551A patent/JPS63113212A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5623817B2 (en) * | 1973-06-26 | 1981-06-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63113212A (en) | 1988-05-18 |
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