JPH03695Y2 - - Google Patents
Info
- Publication number
- JPH03695Y2 JPH03695Y2 JP1984150659U JP15065984U JPH03695Y2 JP H03695 Y2 JPH03695 Y2 JP H03695Y2 JP 1984150659 U JP1984150659 U JP 1984150659U JP 15065984 U JP15065984 U JP 15065984U JP H03695 Y2 JPH03695 Y2 JP H03695Y2
- Authority
- JP
- Japan
- Prior art keywords
- contact
- connector socket
- plug
- metal tube
- ground terminal
- 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
Links
- 239000002184 metal Substances 0.000 claims description 24
- 230000006378 damage Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Connecting Device With Holders (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案はコネクタソケツトに係り、特にシール
ド用金属管を有するプラグが挿入接続される
DIN型のコネクタソケツトに関する。[Detailed description of the invention] Industrial application field The present invention relates to a connector socket, in particular a plug having a shielding metal tube is inserted and connected.
Regarding DIN type connector sockets.
従来の技術
プラグが接続される従来のコネクタソケツト１
は、第１１図に示すように、Ｌ字状の複数のコン
タクト部材２，３，４を円柱形状の収容部５内に
設け、アース端子部材６をその接触片６ａが収容
部５の周囲の環状空間７内に突出するように設け
てなる構成である。特に接触片６ａはコネクタソ
ケツト１の奥方に延出しており、この接触部６ａ
−1はコンタクト部材２〜４の先端２ａ，３ａを
含む面S1によりコネクタソケツト１の奥方側に寸
法a1寄つた位置に配してある。Conventional technology Conventional connector socket 1 to which a plug is connected
As shown in FIG. 11, a plurality of L-shaped contact members 2, 3, and 4 are provided in a cylindrical housing part 5, and a ground terminal member 6 is connected so that its contact piece 6a extends around the housing part 5. This is a configuration in which it is provided so as to protrude into the annular space 7. In particular, the contact piece 6a extends to the back of the connector socket 1, and this contact portion 6a
-1 is arranged at a position a dimension a1 toward the back of the connector socket 1 with respect to the surface S1 including the tips 2a and 3a of the contact members 2 to 4.
考案が解決しようとする問題点
このため、プラグ８を挿入接続するとき、シー
ルド用金属管９がアース端子部材６の接触片６ａ
に接触するよりも先にコンタクトピン１０がコン
タクト部材２〜４に接触することになり、一時的
ではあるが信号回路が接続されている状態でアー
スがとられていない状態となる。このときに過大
レベルの信号が入力されると、コンタクト部材２
〜４と接続してある基板上のIC回路が破壊して
しまう事故が起こる場合があるという問題点があ
つた。またこのIC回路破壊事故はプラグ８をコ
ネクタソケツト１より引き抜くときにも起こりう
る。Problems to be Solved by the Invention For this reason, when the plug 8 is inserted and connected, the shielding metal tube 9
The contact pin 10 comes into contact with the contact members 2 to 4 before contacting the contact members 2 to 4, and the signal circuit is temporarily connected but not grounded. If an excessive level signal is input at this time, the contact member 2
There was a problem that an accident could occur where the IC circuit on the board connected to ~4 could be destroyed. Moreover, this IC circuit destruction accident can also occur when the plug 8 is pulled out from the connector socket 1.
本考案は上記問題点を解決したコネクタソケツ
トを提供することを目的とする。 The object of the present invention is to provide a connector socket that solves the above problems.
問題点を解決するための手段
本考案は、アース端子部材をその本体部の両端
側に切り起こし部を設けた構成とし、この切り起
こし部をソケツト本体とコンタクト保持部材との
間で挟み込んでアース端子部材を固定し、アース
端子部材の接触片をコネクタソケツトの奥方では
なくコネクタソケツトの前面方向に延出させて設
け、接触片の接触部をコンタクト部材の先端より
もコネクタソケツトの前面側に偏倚した位置に配
し、プラグを接続する際には、プラグのコンタク
トピンがコンタクト部材に接触するよりも先にシ
ールド用金属管が接触片に接触し、プラグを引き
抜く際には、コンタクトピンがコンタクト部材よ
り抜け出した後にシールド用金属管が接触片より
離れるようにして、コンタクトピンとコンタクト
部材との接続及び接続解除が必ずアースがとられ
ている状態で行なわれる構成としたものである。Means for Solving the Problems The present invention has a structure in which a ground terminal member is provided with cut-and-raised portions on both ends of its main body, and the cut-and-raised portions are sandwiched between the socket body and the contact holding member to provide grounding. The terminal member is fixed, and the contact piece of the ground terminal member is provided so as to extend toward the front of the connector socket rather than toward the back of the connector socket, so that the contact portion of the contact piece extends toward the front of the connector socket rather than the tip of the contact member. When connecting the plug, the shielding metal tube contacts the contact piece before the contact pin of the plug contacts the contact member, and when the plug is pulled out, the contact The shielding metal tube is separated from the contact piece after the pin comes out of the contact member, so that the connection and disconnection between the contact pin and the contact member is always performed in a grounded state.
実施例
次に本考案の一実施例について説明する。第１
図乃至第５図に示すように、DIN型のコネクタ
ソケツト１１は、共に絶縁性樹脂の成形品である
ソケツト本体１２とコンタクト保持部材１３とを
組合わせてなるブロツク体内に、Ｌ字状のコンタ
クト部材１４〜１８及び本考案の要部をなすアー
ス端子部材２０が組込まれた構造である。Embodiment Next, an embodiment of the present invention will be described. 1st
As shown in Figures 5 to 5, a DIN type connector socket 11 has an L-shaped socket inside a block body made up of a socket body 12 and a contact holding member 13, both of which are molded products of insulating resin. It has a structure in which contact members 14 to 18 and a ground terminal member 20, which is a main part of the present invention, are incorporated.
ソケツト本体１２は、内側に、環状空間１２ａ
及び略円柱形状のコンタクト収容部１２ｂを有す
る。コンタクト部材１４〜１９は、夫々フオーク
形状の先端部１４ａ，１５ａ（他は図示せず）が
コンタクト収容部１２ｂ内の収容孔１２ｂ−1内
に挿入され、信号端子１４ｂ〜１９ｂを保持部材
１３により保持されて組込まれている。アース端
子部材２０は、後述するように、本体１２と保持
部材１３との間に挟まれて組込まれており、接触
片２０ａが環状空間１２ａ内に突出し、アース端
子２０ｂ，２０ｃが下方に突出している。 The socket body 12 has an annular space 12a inside.
and a substantially cylindrical contact accommodating portion 12b. The contact members 14 to 19 have fork-shaped tip portions 14a and 15a (the others not shown) inserted into the housing holes 12b- 1 in the contact housing portion 12b, and the signal terminals 14b to 19b are held by the holding member 13. Retained and incorporated. As will be described later, the ground terminal member 20 is assembled between the main body 12 and the holding member 13, with the contact piece 20a protruding into the annular space 12a and the ground terminals 20b and 20c protruding downward. There is.
上記構成のコネクタソケツト１１は、信号端子
１４ｂ〜１９ｂ、アース端子２０ｂ，２０ｃをプ
リント回路基板の対応する信号用パターン及びア
ース用パターンに接続された状態でプリント回路
基板に固定してある。信号端子１４ｂ〜１９ｂは
夫々プリント回路基板に実装してあるIC回路等
と接続されている。 The connector socket 11 having the above structure is fixed to a printed circuit board with the signal terminals 14b to 19b and ground terminals 20b and 20c connected to corresponding signal patterns and ground patterns on the printed circuit board. The signal terminals 14b to 19b are each connected to an IC circuit or the like mounted on a printed circuit board.
アース端子部材２０は、第６図Ａ乃至Ｃに示す
ように、細長形状の本体部２０ｄの両端にアース
端子２０ｂ，２０ｃ、及び切り起こし片２０ｅ，
２０ｆ、本体部２０ｄの中央に接触片２０ａを設
けてなる。接触片２０ａは本体部２０ｄよりアー
ス端子２０ｂ，２０ｃ側に斜め上方に延出してお
り、その先端側は下方に円弧状に折り曲げてなる
接触部２０ａ−1としてある。接触部２０ａ−1は
アース端子２０ｂ，２０ｃよりも前側に位置して
いる。 As shown in FIGS. 6A to 6C, the ground terminal member 20 includes ground terminals 20b, 20c, and cut-and-raised pieces 20e at both ends of an elongated main body 20d.
20f, a contact piece 20a is provided at the center of the main body 20d. The contact piece 20a extends obliquely upward from the main body 20d toward the ground terminals 20b and 20c, and its tip end is bent downward into an arc shape to form a contact portion 20a- 1 . The contact portion 20a- 1 is located in front of the ground terminals 20b and 20c.
このアース端子部材２０は、第７図中二点鎖線
で示す向きで本体１２の底面の極く浅い溝１２ｃ
内に中央の深い溝１２ｄを跨いで載置され、第８
図に示すように本体１２と保持部材１３との間に
挟み込んで組込まれている。切り起こし部２０
ｅ，２０ｆは平坦となる方向に弾性変形させられ
ており、アース端子部材２０はこの弾性力により
ガタツキなく組込まれている。 This ground terminal member 20 is inserted into an extremely shallow groove 12c on the bottom surface of the main body 12 in the direction shown by the two-dot chain line in FIG.
It is placed across the central deep groove 12d within the
As shown in the figure, it is inserted between the main body 12 and the holding member 13. Cut and raise part 20
e and 20f are elastically deformed in the direction of becoming flat, and the ground terminal member 20 is assembled without wobbling due to this elastic force.
接触片２０ａは、第１図及び第９図に示すよう
に、コネクタソケツト１１の前面１１ａに向かつ
て斜め上方に傾斜して環状空間１２ａ内に突出し
ており、接触部２０ａ−1はコンタクト部材１４
〜１９の揃つた先端部１４ａ，１５ａを含む平面
S2よりコネクタソケツト前面１１ａ側に寸法a2偏
倚した位置に位置している。これに関連して、ソ
ケツト本体１２には、接触片２０ａが撓みうるた
めの空間を確保するための凹部１２ｅが形成して
ある。 As shown in FIGS. 1 and 9, the contact piece 20a is inclined obliquely upward toward the front surface 11a of the connector socket 11 and projects into the annular space 12a, and the contact portion 20a- 1 is a contact member. 14
A plane including ~19 aligned tips 14a, 15a
It is located at a position offset by a dimension a 2 from S 2 toward the front surface 11a of the connector socket. In connection with this, a recess 12e is formed in the socket body 12 to ensure a space in which the contact piece 20a can flex.
次に上記構成のコネクタソケツト１１にプラグ
８を挿入接続するとき及びプラグ８をコネクタソ
ケツト１１より引き抜くときの、コンタクトピン
１０とコンタクト部材１４〜１９との接触とシー
ルド用金属管９と接触片２０ａとの接触とのタイ
ミングについて、第９図及び第１０図を参照して
説明する。 Next, when the plug 8 is inserted into the connector socket 11 configured as described above and when the plug 8 is pulled out from the connector socket 11, contact between the contact pin 10 and the contact members 14 to 19 and contact with the shielding metal tube 9 occurs. The timing of contact with the piece 20a will be explained with reference to FIGS. 9 and 10.
プラグ８を接続するとき、プラグ８の一部がコ
ネクタソケツト１１内に矢印X1方向に挿入され
ると、第９図に示すように、コンタクトピン１０
がコンタクト部材１４の先端部１４ａにまで到達
する前に、シールド用金属管９が接触片２０ａの
接触部２０ａ−1に到達してこれに接触する。プ
ラグ８を更に挿入すると、第１０図に示すよう
に、金属管９は接触片２０ａと下方に撓ませて接
触部２０ａ−1と接触しつゝ環状空間１２ａの奥
部に進入し、コンタクトピン１０は孔１２ｂ−1
内に進入してコンタクト部材１４の先端部１４ａ
と接触し、フオーク部を押し拡げてこの内部に進
入する。プラグ８は最終的には第１０図に示す状
態でコネクタソケツト１１と接続される。なおプ
ラグ８を水平より多少下向きで挿入した場合に
も、上記と同じく、コンタクトピン１０がコンタ
クト部材１４に到る前に金属管９が接触片２０ａ
に接触する。 When connecting the plug 8, when a part of the plug 8 is inserted into the connector socket 11 in the direction of arrow X1 , the contact pin 10 is inserted as shown in FIG.
Before the shielding metal tube 9 reaches the tip 14a of the contact member 14, the shielding metal tube 9 reaches and contacts the contact portion 20a- 1 of the contact piece 20a. When the plug 8 is further inserted, as shown in FIG. 10, the metal tube 9 bends downward with the contact piece 20a and enters the deep part of the annular space 12a while contacting the contact portion 20a- 1 , and the contact pin 10 is hole 12b- 1
the tip 14a of the contact member 14.
It comes into contact with the fork, expands the fork part, and enters the interior. The plug 8 is finally connected to the connector socket 11 in the state shown in FIG. Note that even when the plug 8 is inserted slightly downward from horizontal, the metal tube 9 is inserted into the contact piece 20a before the contact pin 10 reaches the contact member 14, as described above.
come into contact with.
即ち、プラグ８の接続操作時、コンタクトピン
１０は必ず金属管９がアースされた状態でコンタ
クト部材１４と接続される。このため、コンタク
トピン１０とコンタクト部材１４との接続の瞬間
より過大レベルの信号が入力した場合にも、アー
スがとられていることにより、IC回路は破壊さ
れずに保護される。 That is, when the plug 8 is connected, the contact pin 10 is always connected to the contact member 14 while the metal tube 9 is grounded. Therefore, even if an excessive level signal is input from the moment the contact pin 10 and the contact member 14 are connected, the IC circuit is protected from being destroyed because it is grounded.
プラグ８を矢印X2方向に引いてコネクタソケ
ツト１１より引き抜き接続を解除する場合には、
最初にコンタクトピン１０がコンタクト部材１４
より離れ、続いて金属管９が接触片２０ａより離
れる。 To release the connection by pulling the plug 8 in the direction of arrow X 2 and pulling it out from the connector socket 11,
First, the contact pin 10 is connected to the contact member 14.
Then, the metal tube 9 separates from the contact piece 20a.
即ち、コンタクトピン１０がコンタクト部材１
４と電気的に接触している間は金属管９はアース
がとられている。このため、例えばコンタクトピ
ン１０がコンタクト部材１４より離れる直前に過
大レベルの信号が入力したような場合にも、アー
スがとられていることにより、IC回路は破壊さ
れずに保護される。 That is, the contact pin 10 is the contact member 1
While in electrical contact with metal tube 4, metal tube 9 is grounded. Therefore, even if, for example, an excessive level signal is input just before the contact pin 10 is separated from the contact member 14, the IC circuit is protected from being destroyed because it is grounded.
考案の効果
上述の如く、本考案のコネクタソケツトは、略
円柱形状のコンタクト収容部に複数のコンタクト
部材を有し、該コンタクト収容部の周囲の環状空
間内にアース端子部材の接触片を有してなり、複
数のコンタクトピンとこれを囲繞するシールド用
金属管とを有するプラグが、該複数のコンタクト
ピンを対応する該コンタクト部材、該金属管を該
接触片に夫々接触させて挿入接続されるコネクタ
ソケツトにおいて、該アース端子部材の該接触片
を該コネクタソケツトの前面に向く方向に延出さ
せて設け、該接触片のうち該金属管と接触する接
触部を該コンタクト部材の先端部より該コネクタ
ソケツトの前面側に偏倚して配してなる構成であ
るため、プラグ挿入接続時にはコンタクトピンが
コンタクト部材と電気的に接続されるより先に金
属管が接触片と電気的に接続されてアースがとら
れることになり、然して例えばコンタクトピンが
コンタクト部材に接続された瞬間より過大レベル
の信号の入力があつたような場合にも、アースが
とられていることにより、コンタクト部材と接続
してあるIC回路等が破壊することを防止出来、
このIC回路等を良好に保護することが出来、且
つプラグを引き抜くときにもコンタクトピンがコ
ンタクト部材より離れた後にアースが解除される
ことになり、例えばコンタクトピンがコンタクト
部材より離間する直前に過大レベルの信号の入力
があつたような場合にも、アースがとられている
ことにより、上記のIC回路等が破壊すること防
止出来る。Effects of the Invention As described above, the connector socket of the present invention has a plurality of contact members in a substantially cylindrical contact accommodating part, and has a contact piece of a ground terminal member in an annular space around the contact accommodating part. A plug having a plurality of contact pins and a shielding metal tube surrounding the contact pins is inserted and connected by bringing the plurality of contact pins into contact with the corresponding contact member and the metal tube with the contact piece, respectively. In the connector socket, the contact piece of the ground terminal member is provided so as to extend in a direction facing the front surface of the connector socket, and the contact portion of the contact piece that contacts the metal pipe is located at the tip of the contact member. Since the metal tube is arranged more toward the front side of the connector socket, when the plug is inserted and connected, the metal tube is electrically connected to the contact piece before the contact pin is electrically connected to the contact member. For example, even if an excessively high level signal is input from the moment the contact pin is connected to the contact member, the grounding will ensure that the contact member It can prevent the connected IC circuit etc. from being destroyed.
This IC circuit, etc. can be well protected, and even when the plug is pulled out, the grounding is released after the contact pin separates from the contact member. Even if a high-level signal is input, the above-mentioned IC circuit etc. can be prevented from being destroyed by being grounded.
また、アース端子部材は、細長形状の本体部の
両端側の切り起こし部を有し、この切り起こし部
をソケツト本体とコンタクト保持部材との間に挟
み込まれて固定された構成であるため、アース端
子部材をガタツキなく固定することが出来る。こ
れにより、接触片の接触部が触度良く位置決めさ
れ、シールド用金属管と接触部との接触が確実に
なされ、上記のIC回路の破壊防止の信頼性を向
上させることが出来るという特長を有する。 In addition, the ground terminal member has a cut-and-raised portion on both ends of the elongated main body, and the cut-and-raised portion is sandwiched and fixed between the socket body and the contact holding member, so that the ground terminal member is fixed. The terminal member can be fixed without wobbling. As a result, the contact part of the contact piece is positioned with good tactility, and the contact between the metal shielding tube and the contact part is ensured, and the reliability of preventing destruction of the above-mentioned IC circuit can be improved. .
第１図は本考案のコネクタソケツトの一実施例
の内部構造を示す第２図中−線に沿う断面矢
視図、第２図、第３図、第４図、第５図は夫々本
考案のコネクタソケツトの正面図、側面図、底面
図、背面図、第６図Ａ，Ｂ，Ｃは夫々アース端子
部材の平面図、正面図、側面図、第７図及び第８
図は夫々アース端子部材が組込まれた状態を説明
するための図、第９図はプラグ挿入接続時におけ
るプラグの金属管及びコンタクトピンがコネクタ
ソケツトの接触片及びコンタクト部材と接触する
タイミングを説明するための図、第１０図はプラ
グが挿入接続された最終的な状態を示す図、第１
１図は従来のコネクタソケツトの１例を示す図で
ある。
８……プラグ、９……シールド用金属管、１０
……コンタクトピン、１１……コネクタソケツ
ト、１１ａ……前面、１２……ソケツト本体、１
２ａ……環状空間、１２ｂ……コンタクト収容
部、１２ｂ−1……収容孔、１２ｅ……凹部、１
３……コンタクト保持部材、１４〜１９……コン
タクト部材、１４ａ，１５ａ……先端部、１４ｂ
〜１９ｂ……信号端子、２０……アース端子部
材、２０ａ……接触片、２０ａ−1……接触部、
２０ｂ，２０ｃ……アース端子、２０ｄ……本体
部、２０ｅ，２０ｆ……切り起こし部。
Fig. 1 is a sectional view taken along the line - in Fig. 2 showing the internal structure of an embodiment of the connector socket of the present invention, and Figs. The front view, side view, bottom view, and rear view of the connector socket of the invention, and FIGS. 6A, B, and C are the top view, front view, side view, and FIGS.
The figures are for explaining the state in which the ground terminal members are installed, and Figure 9 is for explaining the timing at which the metal pipe and contact pin of the plug come into contact with the contact piece and contact member of the connector socket when the plug is inserted and connected. Figure 10 is a diagram showing the final state when the plug is inserted and connected.
FIG. 1 shows an example of a conventional connector socket. 8...Plug, 9...Metal tube for shielding, 10
... Contact pin, 11 ... Connector socket, 11a ... Front, 12 ... Socket body, 1
2a...Annular space, 12b...Contact accommodating portion, 12b- 1 ...Accommodation hole, 12e...Recessed portion, 1
3...Contact holding member, 14-19...Contact member, 14a, 15a...Tip portion, 14b
~19b...Signal terminal, 20...Earth terminal member, 20a...Contact piece, 20a- 1 ...Contact part,
20b, 20c...earth terminal, 20d...main body, 20e, 20f...cut and raised portion.
Claims (1)
クト部材を有し、該コンタクト収容部の周囲の環
状空間内にアース端子部材の接触片を有してな
り、複数のコンタクトピンとこれを囲繞するシー
ルド用金属管とを有するプラグが、該複数のコン
タクトピンを対応する該コンタクト部材、該金属
管を該接触片に夫々接触させて挿入接続されるコ
ネクタソケツトにおいて、 上記コンタクト収容部を有するソケツト本体の
底面に、上記コンタクト部材の一部を保持するコ
ンタクト保持部材が結合された構成であり、 上記アース端子部材は、細長形状の本体部の両
端側に切り起こし部を有する構成であり、 上記アース端子部材が、上記接触片を上記コネ
クタソケツトの前面に向く向きで且つ上記接触片
のうち上記金属管と接触する接触部を上記コンタ
クト部材の先端部より上記コネクタソケツトの前
面側に偏倚する部位とされて、上記両端側の切り
起こし部を上記ソケツト本体の底面と上記コンタ
クト保持部材の上面との間に挟み込まれて固定さ
れた構成のコネクタソケツト。[Claims for Utility Model Registration] A substantially cylindrical contact accommodating portion has a plurality of contact members, a contact piece of a ground terminal member is provided in an annular space around the contact accommodating portion, and a plurality of contacts In a connector socket in which a plug having a pin and a shielding metal tube surrounding the pin is inserted and connected by bringing the plurality of contact pins into contact with the corresponding contact member and the metal tube with the contact piece, respectively, the contact A contact holding member that holds a part of the contact member is coupled to the bottom surface of the socket body having a housing portion, and the ground terminal member has cut and raised portions at both ends of the elongated main body. wherein the ground terminal member is configured such that the contact piece faces the front surface of the connector socket, and the contact portion of the contact piece that contacts the metal pipe is connected to the connector socket from the tip of the contact member. A connector socket having a structure in which cut-and-raised portions at both ends are sandwiched and fixed between a bottom surface of the socket body and an upper surface of the contact holding member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984150659U JPH03695Y2 (en) | 1984-10-04 | 1984-10-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984150659U JPH03695Y2 (en) | 1984-10-04 | 1984-10-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6171978U JPS6171978U (en) | 1986-05-16 |
| JPH03695Y2 true JPH03695Y2 (en) | 1991-01-11 |
Family
ID=30708801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984150659U Expired JPH03695Y2 (en) | 1984-10-04 | 1984-10-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03695Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE286572T1 (en) * | 2000-08-08 | 2005-01-15 | Festo Ag & Co | CONTROL VALVE DEVICE AND VALVE SUITABLE AS A PART OF THE SAME |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588882B2 (en) * | 1979-09-29 | 1983-02-18 | 出光興産株式会社 | Corrosion prevention method for vacuum distillation column top condensing equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588882U (en) * | 1981-07-10 | 1983-01-20 | エスエムケイ株式会社 | connector socket |
-
1984
- 1984-10-04 JP JP1984150659U patent/JPH03695Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588882B2 (en) * | 1979-09-29 | 1983-02-18 | 出光興産株式会社 | Corrosion prevention method for vacuum distillation column top condensing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6171978U (en) | 1986-05-16 |
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