JPH0543016Y2 - - Google Patents
Info
- Publication number
- JPH0543016Y2 JPH0543016Y2 JP1988033593U JP3359388U JPH0543016Y2 JP H0543016 Y2 JPH0543016 Y2 JP H0543016Y2 JP 1988033593 U JP1988033593 U JP 1988033593U JP 3359388 U JP3359388 U JP 3359388U JP H0543016 Y2 JPH0543016 Y2 JP H0543016Y2
- Authority
- JP
- Japan
- Prior art keywords
- movable magnetic
- magnetic pole
- magnetic poles
- fishing
- fished
- 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
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- Load-Engaging Elements For Cranes (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、被釣上物の釣上時に押付手段によつ
て多数枚の可動磁極をその一端から懸吊溝の長さ
方向に沿つて押付けることにより、被釣上物の重
量によつて可動磁極が下方に摺動されるのを阻止
して、被釣上物の姿勢が崩されるのを防止する構
成の釣上電磁石における可動磁極の構造に関する
ものである。[Detailed description of the invention] [Industrial field of application] The present invention is based on a method of moving a large number of movable magnetic poles from one end along the length of a suspension groove using a pressing means when fishing an object to be fished. A movable magnetic pole in a fishing electromagnet configured to prevent the movable magnetic pole from sliding downward due to the weight of the fished object and prevent the fished object from losing its posture. It is related to the structure of
第８図ないし第１１図は、上記した構成の釣上
電磁石に用いられている従来の可動磁極A′及び
固定磁極Ｂに設けられた懸吊溝５２に可動磁極
A′が懸吊されている状態が示されている。
FIGS. 8 to 11 show a conventional movable magnetic pole A' and a fixed magnetic pole B used in a fishing electromagnet having the structure described above.
A′ is shown suspended.
第１１図に斜視図で示されるように、可動磁極
A′は板状のものであつて、その上端部に引掛か
り部５４が設けられている。固定磁極Ｂに設けら
れた懸吊溝５２に多数枚の可動磁極A′が、その
引掛かり部５４を介して上方に摺動可能に懸吊さ
れ、懸吊溝５２の長さ方向Ｐに沿つて多数枚の可
動磁極A′が相接触して重なり合つている。 As shown in perspective view in FIG.
A' is plate-shaped and has a hook portion 54 at its upper end. A large number of movable magnetic poles A' are slidably suspended upward via their hooks 54 in a suspension groove 52 provided in the fixed magnetic pole B, and are suspended along the length direction P of the suspension groove 52. A large number of movable magnetic poles A' are in contact with each other and overlap each other.
多数枚重なり合つた可動磁極A′の一端部には、
押付装置の押付具５６が配置されている。 At one end of the movable magnetic pole A′, which has many overlapping magnetic poles,
A pressing tool 56 of a pressing device is arranged.
第８図に示されるように被釣上物５８を釣上げ
る際に、被釣上物５８によつて上方に押し上げら
れた可動磁極A′が、被釣上物５８の重量によつ
て下方に摺動されて被釣上物５８の姿勢が崩され
るのを防止するために、多数枚重なり合つた可動
磁極A′の一端部は、押付装置の押付具５６によ
つて懸吊溝５２の長さ方向Ｐに沿つて押付けられ
ている。 As shown in FIG. 8, when fishing the object 58, the movable magnetic pole A' pushed upward by the object 58 is pushed downward by the weight of the object 58. In order to prevent the object 58 from sliding and losing its posture, one end of the movable magnetic poles A', which are stacked in large numbers, is pressed against the length of the suspension groove 52 by a pressing tool 56 of a pressing device. It is pressed along the horizontal direction P.
これにより、多数枚の可動磁極A′が恰もロツ
クされたような状態になつて、被釣上物５８の姿
勢が崩されるのを防止することができる。 This can prevent the large number of movable magnetic poles A' from becoming locked, thereby preventing the object 58 from losing its posture.
被釣上物５８を所定の場所に降ろすには、釣上
電磁石のコイルの励磁を解除すると同時に、多数
枚の可動磁極A′を押付けていた押付力を解除し
て行う。 In order to lower the fished object 58 to a predetermined location, the coil of the fishing electromagnet is de-energized and, at the same time, the pressing force pressing against the multiple movable magnetic poles A' is released.
しかし、可動磁極A′が板状であつて、相隣接
する可動磁極A′は、板面の全面で接触する構造
であるために、相接触する可動磁極A′の板面ど
うしの摩擦力が可動磁極A′の自重に勝り、被釣
上物５８を降ろした後において、第９図に示され
るように、被釣上物５８を吸着していた部分の可
動磁極A′が下端まで完全に下がらない状態にな
る。 However, since the movable magnetic pole A' is plate-shaped and the adjacent movable magnetic poles A' are in contact with each other on the entire surface of the plate, the frictional force between the plate surfaces of the movable magnetic poles A' that are in contact with each other is After overcoming the own weight of the movable magnetic pole A' and lowering the fished object 58, as shown in FIG. It will not go down.
即ち、可動磁極A′の吸着面に凹凸が生じて当
初の吸着面の形状に戻らない。このままの状態で
は、次に行う被釣上物の吸着に支障が生ずること
になる。 That is, the attraction surface of the movable magnetic pole A' becomes uneven and does not return to its original shape. If this state continues, there will be a problem in the next suction of the object to be fished.
本考案は、上記したような不具合に鑑み、被釣
上物を降ろした場合には、被釣上物を吸着してい
た部分の可動磁極が完全に下がつて、多数枚の可
動磁極の下面に当初の吸着面が形成されるように
することを目的としてなされたものである。
In view of the above-mentioned problems, the present invention was developed in such a way that when the object to be fished is lowered, the movable magnetic pole in the part that was attracting the object to be fished completely lowers, causing the bottom surface of many movable magnetic poles to fall. This was done for the purpose of forming the original suction surface.
本考案は、固定磁極に設けた懸吊溝に多数枚の
板状の可動磁極が上方に摺動可能に懸吊され、被
釣上物の釣上時に押付手段によつて多数枚の可動
磁極をその一端から懸吊溝の長さ方向に沿つて押
付けて、被釣上物の姿勢が崩されるのを防止する
構成の釣上電磁石において、接触面が平面となつ
ている凸部を前記可動磁極の板面に部分的に設け
たことを特徴とするものである。
In the present invention, a large number of plate-shaped movable magnetic poles are slidably suspended upward in a suspension groove provided in a fixed magnetic pole, and when an object to be fished is caught, a large number of movable magnetic poles are suspended by a pressing means. In the fishing electromagnet, the convex portion having a flat contact surface is movable. It is characterized by being partially provided on the plate surface of the magnetic pole.
隣接する可動磁極は、可動磁極の板面に部分的
に設けられた凸部を介して接触しているので、従
来の可動磁極に比較して可動磁極どうしの接触面
積が小さくなつて、可動磁極の間の摩擦抵抗が小
さくなる。
Adjacent movable magnetic poles are in contact via convex parts partially provided on the plate surface of the movable magnetic poles, so the contact area between the movable magnetic poles is smaller compared to conventional movable magnetic poles, and the movable magnetic poles The frictional resistance between is reduced.
よつて、多数枚の可動磁極を懸吊溝の長さ方向
に沿つて押付けている押付力を解除すると、可動
磁極の自重が可動磁極の間の摩擦抵抗に勝つて、
可動磁極は下端まで完全に下がり、多数枚の可動
磁極の下面に当初の吸着面が形成される。 Therefore, when the pressing force that presses a large number of movable magnetic poles along the length of the suspension groove is released, the weight of the movable magnetic poles overcomes the frictional resistance between the movable magnetic poles, and
The movable magnetic poles are completely lowered to their lower ends, and the original attraction surfaces are formed on the lower surfaces of the multiple movable magnetic poles.
第１図ないし第６図に、本考案に係わる可動磁
極A1を備えた釣上電磁石Ｍが示されている。
1 to 6 show a fishing electromagnet M having a movable magnetic pole A1 according to the present invention.
Ｅ形鉄心２の中央の脚部が中央磁極４となつて
おり、両側方の各脚部が外方磁極６となつてい
る。中央磁極４にはコイル８が巻回されている。
中央磁極４と外方磁極６とで固定磁極を構成して
いる。 The central leg of the E-shaped core 2 serves as a central magnetic pole 4, and the legs on both sides serve as outer magnetic poles 6. A coil 8 is wound around the central magnetic pole 4 .
The central magnetic pole 4 and the outer magnetic pole 6 constitute a fixed magnetic pole.
中央磁極４には下面に開口した二本の懸吊溝１
０が設けられていると共に、各外方磁極６にはそ
れぞれ一本の懸吊溝１０が設けられている。懸吊
溝１０の長さ方向Ｐの両端部（鉄心２の端面部）
にはそれぞれ壁体１２が設けられている。 The central magnetic pole 4 has two suspension grooves 1 opened on the bottom surface.
0 is provided, and each outer magnetic pole 6 is provided with one suspension groove 10, respectively. Both ends of the suspension groove 10 in the length direction P (end faces of the iron core 2)
A wall body 12 is provided at each of the walls.
可動磁極A1は、第６図に示されるように、板
状のものであつて、上端部に幅広の引掛かり部１
４が設けられていると共に、一方の板面の中央部
に凸部１６が上下方向に設けられたものである。
凸部１６の接触面１６ａは可動磁極A1の板面と
平行な平面となつている。 As shown in FIG. 6, the movable magnetic pole A 1 is plate-shaped and has a wide hook portion 1 at its upper end.
4 is provided, and a convex portion 16 is provided in the vertical direction at the center of one plate surface.
The contact surface 16a of the convex portion 16 is a plane parallel to the plate surface of the movable magnetic pole A1 .
懸吊溝１０の段部１０ａに可動磁極A1の引掛
かり部１４が引掛かつて、多数枚の可動磁極A1
が懸吊溝１０に上方に摺動可能に懸吊されてい
る。隣接する可動磁極A1は、自身に設けられた
凸部１６を介して接触している。 Once the hook portion 14 of the movable magnetic pole A 1 is caught on the stepped portion 10 a of the suspension groove 10 , a large number of movable magnetic poles A 1
is suspended in the suspension groove 10 so as to be able to slide upward. Adjacent movable magnetic poles A 1 are in contact via convex portions 16 provided thereon.
鉄心２の上面には駆動シリンダ１８が懸吊溝１
０の長さ方向Ｐに沿つて装着され、板状のてこ部
材２０の下端部に近い部分がブラケツト２２を介
して鉄心２の端面に回動自在に枢着され、駆動シ
リンダ１８のロツド２４と、てこ部材２０の上端
部とが枢着されている。てこ部材２０の下端部に
は四個の押付具２６が取付けられ、各押付具２６
はそれぞれの懸吊溝１０の端部に懸吊されている
可動磁極A1に当接している。 A drive cylinder 18 is installed in the suspension groove 1 on the upper surface of the iron core 2.
0, a portion near the lower end of the plate-shaped lever member 20 is rotatably pivoted to the end face of the iron core 2 via a bracket 22, and is connected to the rod 24 of the drive cylinder 18. , and the upper end of the lever member 20 are pivotally connected. Four pressing tools 26 are attached to the lower end of the lever member 20, and each pressing tool 26
are in contact with the movable magnetic pole A 1 suspended at the end of each suspension groove 10 .
ロツド２４が突出する方向に駆動シリンダ１８
を駆動させると、懸吊溝１０に懸吊されている多
数枚の可動磁極A1が、懸吊溝１０の長さ方向Ｐ
に沿つて押付けられるようになつている。 Drive cylinder 18 in the direction in which rod 24 protrudes.
When driven, a large number of movable magnetic poles A1 suspended in the suspension groove 10 move in the length direction P of the suspension groove 10.
It is designed to be pressed along the
コイル８の励磁前においては、多数枚の可動磁
極A1は懸吊溝１０内を上方に摺動し得る。この
状態で、釣上電磁石Ｍの可動磁極A1の部分を被
釣上物２８の上方に位置させて、釣上電磁石Ｍを
徐々に下げると、各可動磁極A1が被釣上物２８
の形状に倣つて懸吊溝１０内を上方に摺動し、こ
れにより可動磁極A1と被釣上物２８との間に十
分な接触面積が確保される。 Before the coil 8 is energized, the multiple movable magnetic poles A 1 can slide upward within the suspension groove 10 . In this state, when the movable magnetic pole A 1 of the fishing electromagnet M is positioned above the fishing object 28 and the fishing electromagnet M is gradually lowered, each movable magnetic pole A 1 is positioned above the fishing object 28.
The movable magnetic pole A 1 slides upward in the suspension groove 10 following the shape of the movable magnetic pole A 1 , thereby ensuring a sufficient contact area between the movable magnetic pole A 1 and the object to be fished 28 .
次に、ロツド２４が突出する方向に駆動シリン
ダ１８を駆動させて、懸吊溝１０に懸吊されてい
る多数枚の可動磁極A1を該懸吊溝１０の長さ方
向Ｐに沿つて押付けると、多数枚の可動磁極A1
が押付具２６と壁体１２との間で強固に挟まれ
て、多数枚の可動磁極A1が自身に設けられた凸
部１６を介して互いに密着して一体にロツクされ
たような状態となる。 Next, the drive cylinder 18 is driven in the direction in which the rod 24 protrudes, and the multiple movable magnetic poles A1 suspended in the suspension groove 10 are pushed along the length direction P of the suspension groove 10. When attached, multiple movable magnetic poles A 1
is firmly sandwiched between the pressing tool 26 and the wall 12, and a large number of movable magnetic poles A1 are brought into close contact with each other via the convex portions 16 provided on the movable magnetic poles A1 and are locked together. Become.
しかる後にコイル８に励磁すると、駆動シリン
ダ１８により懸吊溝１０の長さ方向Ｐに沿つた押
付力と、磁気吸引力との双方の力によつて、可動
磁極A1の下方への摺動が阻止される。このため、
釣上電磁石Ｍで被釣上物２８を釣上げても、その
姿勢が崩されることなくそのままの姿勢を維持し
て搬送される。 After that, when the coil 8 is energized, the movable magnetic pole A 1 slides downward by both the pressing force along the length direction P of the suspension groove 10 by the drive cylinder 18 and the magnetic attraction force. is prevented. For this reason,
Even when the fishing object 28 is caught by the fishing electromagnet M, the object 28 is transported while maintaining its posture without being disturbed.
被釣上物２８を所定の場所まで搬送したなら
ば、コイル８の励磁を解除すると同時に、駆動シ
リンダ１８による押付力を解除し、この状態で釣
上電磁石Ｍを寸法に引上げると、第２図に示され
るように、可動磁極A1と被釣上物２８との吸着
が解除されて、可動磁極A1が被釣上物２８から
離れると同時に、被釣上物２８を吸着していた部
分の可動磁極A1が下端まで完全に下がつて、可
動磁極A1の下面に当初の吸着面が形成される。 Once the fishing object 28 has been transported to a predetermined location, the coil 8 is de-energized and at the same time the pressing force by the drive cylinder 18 is released, and in this state the fishing electromagnet M is pulled up to its dimension, and the second As shown in the figure, the attraction between the movable magnetic pole A1 and the fished object 28 is released, and the movable magnetic pole A1 separates from the fished object 28, and at the same time, the fished object 28 is attracted. The movable magnetic pole A 1 of the portion is completely lowered to the lower end, and the original attraction surface is formed on the lower surface of the movable magnetic pole A 1 .
被釣上物２８を吸着していた部分の可動磁極
A1が下端まで完全に下がるのは、懸吊溝１０に
懸吊されている相隣接する可動磁極A1どうしが、
自身の板面に部分的に設けられた凸部１６を介し
て接触しているため、従来の可動磁極A′に比較
して接触面積がはるかに小さくなつて、可動磁極
A1の間の摩擦抵抗が小さくなるためである。こ
のため、可動磁極A1の自重が可動磁極A1の間の
摩擦抵抗に勝り、可動磁極A1が下端まで完全に
下がる。 The movable magnetic pole of the part that was attracting the fished object 28
The reason why A 1 is completely lowered to the lower end is that the adjacent movable magnetic poles A 1 suspended in the suspension groove 10 are
Since the contact is made through the convex portion 16 partially provided on the plate surface of the movable magnetic pole, the contact area is much smaller than that of the conventional movable magnetic pole A', and the movable magnetic pole
This is because the frictional resistance between A and 1 becomes smaller. Therefore, the weight of the movable magnetic pole A 1 overcomes the frictional resistance between the movable magnetic poles A 1 and the movable magnetic pole A 1 completely lowers to the lower end.
また、第７図に示されるように、可動磁極A2
の板面に複数本の凸部１６を上下方向に設けても
よい。可動磁極の板面に設ける凸部の方向と、可
動磁極の摺動方向とを一致させることにより、可
動磁極の間の摩擦抵抗を小さくすることができ
る。 Moreover, as shown in FIG. 7, the movable magnetic pole A 2
A plurality of convex portions 16 may be provided in the vertical direction on the plate surface. By matching the direction of the convex portion provided on the plate surface of the movable magnetic pole with the sliding direction of the movable magnetic pole, the frictional resistance between the movable magnetic poles can be reduced.
本考案は、固定磁極に設けた懸吊溝に多数枚の
板状の可動磁極が上方に摺動可能に懸吊され、被
釣上物の釣上時に押付手段によつて多数枚の可動
磁極をその一端から懸吊溝の長さ方向に沿つて押
付けて、被釣上物の姿勢が崩されるのを防止する
構成の釣上電磁石において、接触面が平面となつ
ている凸部を前記可動磁極の板面に部分的に設け
てあるので、相隣接する可動磁極は、可動磁極の
板面に部分的に設けられた凸部を介して接触し、
従来の可動磁極に比較して可動磁極どうしの接触
面積が小さくなつて、可動磁極の間の摩擦抵抗が
小さくなる。
In the present invention, a large number of plate-shaped movable magnetic poles are slidably suspended upward in a suspension groove provided in a fixed magnetic pole, and when an object to be fished is caught, a large number of movable magnetic poles are suspended by a pressing means. In this fishing electromagnet, the convex portion having a flat contact surface is movable. Since it is partially provided on the plate surface of the magnetic pole, adjacent movable magnetic poles come into contact via the convex portion partially provided on the plate surface of the movable magnetic pole.
Compared to conventional movable magnetic poles, the contact area between the movable magnetic poles is smaller, and the frictional resistance between the movable magnetic poles is reduced.
このため、多数枚の可動磁極を懸吊溝の長さ方
向に沿つて押付けている押付力を解除すると、可
動磁極の自重が可動磁極の間の摩擦抵抗に打ち勝
つて、可動磁極は下端まで完全に下がり、多数枚
の可動磁極の下面に当初の吸着面が形成され、被
釣上物を吸着して釣上げ搬送する作業を連続して
支障なく行うことができる。 Therefore, when the pressing force that presses a large number of movable magnetic poles along the length of the suspension groove is released, the weight of the movable magnetic poles overcomes the frictional resistance between the movable magnetic poles, and the movable magnetic poles completely reach the bottom end. The original suction surface is formed on the lower surface of the multiple movable magnetic poles, and the work of suctioning the object to be fished and transporting it can be carried out continuously without any hindrance.
第１図ないし第７図は、本考案を説明するため
の図であつて、第１図は、本考案に係わる可動磁
極A1を装着した釣上電磁石Ｍによつて被釣上物
２８を吸着して釣上げている状態の正面断面図、
第２図は、釣上げていた被釣上物２８を降ろした
状態の正面断面図、第３図は、釣上電磁石Ｍの側
面図、第４図は、同じく横断面図、第５図は、可
動磁極A1の部分を下方から見た拡大図、第６図
は、多数枚の可動磁極A1が接触している状態の
斜視図、第７図は、多数枚の可動磁極A2が接触
している状態の斜視図である。第８図ないし第１
１図は、従来の可動磁極A′を説明するための図
であつて、第８図は、被釣上物５８を吸着して釣
上げた状態の可動磁極A′の部分の図、第９図は、
被釣上物５８を降ろした状態の可動磁極A′の部
分の図、第１０図は、懸吊溝５２に可動磁極
A′が懸吊されている状態の横断面図、第１１図
は、多数枚の可動磁極A′が接触している状態の
斜視図である。
本考案を構成している主要部分の符号の説明は
以下の通りである。A1，A2……可動磁極、Ｍ…
…釣上電磁石、４……中央磁極（固定磁極）、６
……外方磁極（固定磁極）、１０……懸吊溝、１
６……可動磁極の板面に設けられる凸部、１６ａ
……凸部の接触面、１８……駆動シリンダ（押付
手段）、２６……押付具、２８……被釣上物。
1 to 7 are diagrams for explaining the present invention, and FIG. 1 shows an object 28 to be fished by a fishing electromagnet M equipped with a movable magnetic pole A1 according to the present invention. Front sectional view of the state in which the fish is being caught and caught,
FIG. 2 is a front sectional view of the fished object 28 that has been taken down, FIG. 3 is a side view of the fishing electromagnet M, FIG. 4 is a cross-sectional view of the same, and FIG. FIG. 6 is an enlarged view of the movable magnetic pole A 1 seen from below. FIG. 6 is a perspective view of a state in which a large number of movable magnetic poles A 1 are in contact. FIG. 7 is a perspective view of a state in which a large number of movable magnetic poles A 2 are in contact. FIG. Figures 8 to 1
1 is a diagram for explaining a conventional movable magnetic pole A', FIG. 8 is a diagram of a portion of the movable magnetic pole A' in a state where an object 58 to be fished is attracted and caught, and FIG. 9 is a diagram for explaining a conventional movable magnetic pole A'. teeth,
FIG. 10 is a diagram of the part of the movable magnetic pole A′ with the object to be fished 58 lowered, and FIG.
FIG. 11, which is a cross-sectional view of A' in a suspended state, is a perspective view of a state in which a large number of movable magnetic poles A' are in contact with each other. The explanations of the symbols of the main parts constituting the present invention are as follows. A 1 , A 2 ...Movable magnetic pole, M...
...Fishing electromagnet, 4...Central magnetic pole (fixed magnetic pole), 6
...Outer magnetic pole (fixed magnetic pole), 10...Suspension groove, 1
6... Convex portion provided on the plate surface of the movable magnetic pole, 16a
. . . Contact surface of the convex portion, 18 . . . Drive cylinder (pressing means), 26 .
Claims (1)
磁極が上方に摺動可能に懸吊され、被釣上物の釣
上時に押付手段によつて多数枚の可動磁極をその
一端から懸吊溝の長さ方向に沿つて押付けて、被
釣上物の姿勢が崩されるのを防止する構成の釣上
電磁石において、接触面が平面となつている凸部
を前記可動磁極の板面に部分的に設けたことを特
徴とする釣上電磁石における可動磁極の構造。 A large number of plate-shaped movable magnetic poles are slidably suspended upward in a suspension groove provided in a fixed magnetic pole, and when an object to be fished is caught, a large number of movable magnetic poles are moved from one end of the movable magnetic poles by a pressing means. In a fishing electromagnet configured to prevent the fished object from losing its posture by pressing along the length direction of the suspension groove, the convex portion with a flat contact surface is pressed against the plate surface of the movable magnetic pole. A structure of a movable magnetic pole in a fishing electromagnet, characterized in that the movable magnetic pole is partially provided in the fishing electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988033593U JPH0543016Y2 (en) | 1988-03-14 | 1988-03-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988033593U JPH0543016Y2 (en) | 1988-03-14 | 1988-03-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01137983U JPH01137983U (en) | 1989-09-20 |
| JPH0543016Y2 true JPH0543016Y2 (en) | 1993-10-28 |
Family
ID=31260283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988033593U Expired - Lifetime JPH0543016Y2 (en) | 1988-03-14 | 1988-03-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0543016Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5322919U (en) * | 1976-08-04 | 1978-02-25 | ||
| JPS5354033U (en) * | 1976-10-12 | 1978-05-09 |
-
1988
- 1988-03-14 JP JP1988033593U patent/JPH0543016Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01137983U (en) | 1989-09-20 |
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