JPH0123670Y2 - - Google Patents
Info
- Publication number
- JPH0123670Y2 JPH0123670Y2 JP1980152811U JP15281180U JPH0123670Y2 JP H0123670 Y2 JPH0123670 Y2 JP H0123670Y2 JP 1980152811 U JP1980152811 U JP 1980152811U JP 15281180 U JP15281180 U JP 15281180U JP H0123670 Y2 JPH0123670 Y2 JP H0123670Y2
- Authority
- JP
- Japan
- Prior art keywords
- passage
- reverse
- welding
- welding nut
- nut
- 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
- 238000003466 welding Methods 0.000 claims description 48
- 230000007246 mechanism Effects 0.000 claims description 27
- 238000001514 detection method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Landscapes
- Sorting Of Articles (AREA)
- Feeding Of Articles To Conveyors (AREA)
Description
【考案の詳細な説明】
本考案は、溶接ナツトを被溶接材に溶接するに
際し、被溶接材の任意の箇所に同姿勢で連続的に
供給する溶接ナツト供給機構において用いられる
溶接ナツト正逆選別矯正装置に関する。[Detailed description of the invention] This invention is a welding nut forward/reverse sorter used in a welding nut supply mechanism that continuously supplies a welding nut to any part of the welded material in the same posture when welding the welding nut to the welded material. Regarding correction devices.
一般に、機械装置その他の組み立てに際して、
小径であつて表裏が不同一の部品を同姿勢で供給
する場合、この供給を機械的に行う供給機構が案
出されるに至つている。該供給機構においては、
前記部品の姿勢の正のものと、逆のものとを選別
する機構と、逆姿勢のものを正姿勢に矯正するた
めの機構とを必要不可欠とする。 Generally, when assembling machinery and other equipment,
In the case of feeding small-diameter parts with different front and back sides in the same position, feeding mechanisms have been devised that mechanically perform this feeding. In the supply mechanism,
A mechanism for separating the parts in the correct posture from those in the opposite posture, and a mechanism for correcting the objects in the reverse posture to the normal posture are indispensable.
従来前記部品の正逆を選別する機構としては、
光電検出法とエアーセンサ検出法の二方法があ
る。 Conventionally, the mechanism for sorting between the forward and reverse parts is as follows:
There are two methods: photoelectric detection method and air sensor detection method.
前記光電検出法にあつては、投光器と光電素子
をもつ受光器から成り、部品の方向や姿勢に応じ
た信号を発し、この信号を受けた制御装置は信号
を設定プログラムと比較演算し、部品の排出また
はリジエクトを電子制御する方法である。 The photoelectric detection method consists of a light emitter and a receiver with a photoelectric element, which emits a signal according to the direction and orientation of the part. Upon receiving this signal, the control device compares the signal with a setting program and calculates the part. This is a method of electronically controlling the discharge or reject.
一方エアーセンサ検出法にあつては、第１図
Ａ，Ｂに示したように部品の姿勢を確認すべきブ
ロツクａ内に通ずる空気路ｂを設けておき、第１
図Ａの如く空気路ｂが部品ｃによつて閉鎖された
場合には逆と判断され、第１図Ｂの如く空気路ｂ
が開放された場合には正と判断するものである。
すなわちエアセンサー検出法は空気路ｂより空気
が流出するか否かをセンサーで感知し、該感知に
基づき部品の姿勢の正逆を判断するものである。 On the other hand, in the air sensor detection method, as shown in FIGS.
If air passage b is closed by part c as shown in Figure A, the opposite is determined, and air passage b is closed as shown in Figure 1B.
If it is released, it is determined to be positive.
That is, in the air sensor detection method, a sensor detects whether or not air flows out from the air path b, and based on this detection, it is determined whether the orientation of the component is normal or reverse.
本考案においては、従来の二方法の如くセンサ
ーを用いず機械的構成によつてのみ特に溶接ナツ
トの正逆を選別し、さらに逆方向に位置している
溶接ナツトの方向を正方向に矯正する矯正装置を
も合理的に結合せしめることにより、前記選別の
みならず矯正をも機械的構成によつて行う溶接ナ
ツト正逆選別矯正装置を提供することを目的とす
る。 In the present invention, unlike the two conventional methods, a sensor is not used, but only a mechanical structure is used to specifically select whether the welding nut is in the right or wrong direction, and furthermore, the direction of the welding nut located in the opposite direction is corrected to the forward direction. It is an object of the present invention to provide a weld nut forward/reverse sorting and straightening device that performs not only the sorting but also the straightening with a mechanical structure by rationally combining the straightening devices.
以下本考案について、第２図以下の図面に示し
た一実施例に従つて説明する。 The present invention will be described below with reference to one embodiment shown in the drawings from FIG. 2 onwards.
図中１は、溶接ナツトの通路であり、両側壁１
ａ，１ｂに軸方向面を当接しつつ通過すべく形状
を有してなる。２はセレクタであり左右動自在で
あつてスプリング３によつて図中において常時右
方向に付勢されている。４はセレクタ２本体に取
り付けられた溶接ナツトの１次停止杆であり、溶
接ナツトの中心穴に挿入可能な径を有し、セレク
タ２が図面に示した後退位置にある時には通路１
外にあり、前進位置にある時には通路内に突出す
る長さを有し、通路１の側壁１ｂ内に設けられた
穴５内に摺動自在に設けられている。６は２次停
止杆であり、前記１次停止杆同様セレクタ２本体
に取り付けられ、溶接ナツト通過孔７を有して成
り、セレクタ２本体が後退位置にある時には、通
路１を閉鎖し、前進位置にある時には前記通過孔
７が通路１と合致し、溶接ナツトを通過せしむべ
く、通路１の通路１ａ，１ｂ両側に直線的に設け
られた穴８内に摺動自在に設けられている。 1 in the figure is the passage of the welding nut, and both side walls 1
It has a shape so as to pass through it while abutting the axial surfaces on a and 1b. Reference numeral 2 denotes a selector which is movable left and right and is always biased toward the right in the figure by a spring 3. 4 is the primary stop rod of the welding nut attached to the main body of the selector 2, and has a diameter that allows it to be inserted into the center hole of the welding nut, and when the selector 2 is in the retracted position shown in the drawing, it is connected to the passage 1.
It is located outside and has a length that projects into the passage when in the forward position, and is slidably provided in a hole 5 provided in the side wall 1b of the passage 1. A secondary stop lever 6 is attached to the selector 2 body like the primary stop lever, and has a weld nut passage hole 7. When the selector 2 body is in the backward position, it closes the passage 1 and prevents the forward movement. When in position, the passage hole 7 aligns with the passage 1, and is slidably provided in a hole 8 provided linearly on both sides of the passages 1a and 1b of the passage 1 to allow the welding nut to pass therethrough. .
９は正逆感知機構であり、通路１に送入された
溶接ナツトをその姿勢の異同により正逆を判別す
る。すなわち１０は溶接ナツトへの当接杆であ
り、通路１の側壁１ａ内に、該通路１に達する長
さにて摺動自在に設けられている。１１ａ，１１
ｂは間隙であり、両者は相通じておりその内部に
は圧搾空気が栓１２ａ，１２ｂにて密封されてお
り、したがつて当接杆１０は矢印イ方向に付勢さ
れている。１３はスイツチ対設杆であり、一端部
にスイツチ盤１４を有して成る。このスイツチ対
設杆１３は、前記間隙１１ａに密閉された圧搾空
気により矢印ロ方向に付勢されている。１５はス
イツチであり、端部の前記スイツチ盤１４に対応
する位置には、スイツチ面１６が設けられてい
る。 Reference numeral 9 denotes a forward/reverse sensing mechanism, which determines whether the welding nut fed into the passage 1 is forward or reverse based on the difference in its orientation. That is, 10 is an abutting rod for the welding nut, and is slidably provided within the side wall 1a of the passage 1 with a length that reaches the passage 1. 11a, 11
b is a gap, both of which communicate with each other, and compressed air is sealed inside with plugs 12a and 12b, so that the abutting rod 10 is urged in the direction of arrow A. Reference numeral 13 denotes a switch rod, which has a switch board 14 at one end. This switch rod 13 is biased in the direction of the arrow RO by compressed air sealed in the gap 11a. 15 is a switch, and a switch surface 16 is provided at a position corresponding to the switch panel 14 at the end.
１７は正逆選別機構であり、前記正逆感知機構
９により、正姿勢と判断された溶接ナツトと、逆
姿勢と判断された溶接ナツトとを選別する機能を
有する。 Reference numeral 17 denotes a forward/reverse sorting mechanism, which has a function of sorting out welding nuts determined to be in the normal orientation and welding nuts determined to be in the reverse orientation by the forward/reverse sensing mechanism 9.
すなわち１８は、正逆選別機構側の通路であ
り、前記正逆感知機構９の通路１と同断面形状で
ある。１９は通路切換盤であり、正逆感知機構９
の連絡により左右動すべく構成されている。２０
は通路切換盤１９内に設けられた通過路であり、
通路切換盤１９が正逆感知機構９より正姿勢の連
絡を受けた時には、前記通路切換盤１９の作動に
より通路１８と合致する位置（以下正の位置とい
う。）に、該通路１８と同断面形状にて形成され
てなる。２１は矯正路であり、通路切換盤１９が
正逆感知機構９より逆姿勢の連絡を受けた時に
は、前記通路切換盤１９の作動により通路１８と
合致する位置（以下逆の位置という。）に、該通
路１８と同断面形状にて形成されてなる。 That is, 18 is a passage on the forward/reverse sorting mechanism side, and has the same cross-sectional shape as the passage 1 of the forward/reverse sensing mechanism 9. 19 is a passage switching board, and a forward/reverse sensing mechanism 9
It is configured to move left and right depending on the communication between the two. 20
is a passage provided in the passage switching board 19,
When the passage switching board 19 receives notification of the normal posture from the forward/reverse sensing mechanism 9, the movement of the passage switching board 19 causes the passage switching board 19 to move to a position that matches the passage 18 (hereinafter referred to as the "positive position"), with the same cross section as the passage 18. It is formed by the shape. Reference numeral 21 denotes a correction path, and when the path switching board 19 receives notification of the reverse orientation from the forward/reverse sensing mechanism 9, the path switching board 19 moves to a position matching the path 18 (hereinafter referred to as the reverse position). , and is formed to have the same cross-sectional shape as the passage 18.
２７は正逆矯正機構であり、逆姿勢の溶接ナツ
トを正姿勢に矯正する機能を有する。すなわち２
２は正姿勢の溶接ナツトを通過させる通過側チユ
ーブであり、一端は通路切換盤１９が正の位置に
あるとき、通過路２０と合致すべく正逆選別機本
体２３に結合されてなり、他端は後述の供給ヘツ
ドに結合されてなり、通過路２０と同断面形状を
有してなる。 Reference numeral 27 denotes a forward/reverse correcting mechanism, which has a function of correcting a welding nut in a reverse position to a normal position. That is, 2
Reference numeral 2 designates a passage side tube through which weld nuts in the normal position pass, one end of which is connected to the forward/reverse sorter main body 23 so as to match the passage 20 when the passage switching board 19 is in the positive position; The end is connected to a supply head, which will be described later, and has the same cross-sectional shape as the passageway 20.
２４は矯正側チユーブであり、一端は通路切換
盤１９が逆の位置にあるとき、矯正路２１と合致
すべく正逆選別機本体２３と結合されてなり、中
途部分に180゜捩られた捩り部分２５を有して成
る。２６はナツト供給ヘツドであり、チユーブ２
２，２４を通過して到達するナツトを噴出する機
能を有する。 24 is a correction side tube, one end of which is connected to the forward/reverse sorter main body 23 so as to match the correction path 21 when the passage switching board 19 is in the reverse position; It has a portion 25. 26 is a nut supply head, tube 2
It has the function of ejecting the nuts that pass through the holes 2 and 24.
なお、２８は、本考案の実施に際して使用され
る整列ユニツトであり、溶接用ナツトを整列しか
つ、所要速度にて、通路１に送入する機能を営
む。 Note that 28 is an alignment unit used in carrying out the present invention, and has the function of aligning the welding nuts and feeding them into the passage 1 at a required speed.
以上構成に係る本実施例において、中央部に孔
ｄを有し片面の４隅に突起部ｅを有することから
中央部に凹部が形成されてなる溶接ナツトＮは、
整列ユニツトにより整列されて順次通路１に送入
されて行く。 In this embodiment having the above configuration, the welding nut N has a hole d in the center and protrusions e at the four corners of one side, so that a recess is formed in the center.
They are aligned by an alignment unit and fed into the passage 1 one after another.
以下この溶接ナツトＮが正姿勢の時すなわち第
４図Ｂに示す姿勢にて送入された時の作動につい
て説明する。新たに送入された溶接ナツトN1は
その直前に送入された溶接ナツトN2が選別を受
けている間、該溶接ナツトN2に当接して停止し
ている。そして溶接ナツトN2が選別を終えると
セレクタ２は矢印ニ方向に押圧され、２次停止杆
６の通過孔７を通路１に合致せしめる。これによ
り溶接ナツトN2は自重によつて通路切換盤１９
へと落下する。一方、前記セレクタの矢印ニ方向
への押圧により１次停止杆４は前進し、溶接ナツ
トN1の孔ｄに嵌合し、N1の落下を防止する。 The operation when this welding nut N is fed in the normal position, that is, the position shown in FIG. 4B, will be explained below. The newly introduced welding nut N 1 comes into contact with the welding nut N 2 and stops while the welding nut N 2 introduced immediately before is being sorted. When the welding nut N 2 has been sorted, the selector 2 is pressed in the direction of the arrow N to bring the passage hole 7 of the secondary stop lever 6 into alignment with the passage 1. As a result, the welding nut N2 is moved to the passage switching board 19 by its own weight.
fall to. On the other hand, as the selector is pressed in the direction of arrow 2, the primary stop lever 4 moves forward and fits into the hole d of the welding nut N1 , thereby preventing N1 from falling.
溶接ナツトN2が落下した時点においてセレク
タ２はスプリング３によつて矢印ニと反対の方向
に押し下げられ、これにより１次停止杆４も後退
し、該１次停止杆４は溶接ナツトN1の孔ｄから
抜け、該溶接ナツトN1は自重により落下する。
この時にはすでにセレクタ２の押し下げにより、
２次停止杆６も後退しており、したがつて溶接ナ
ツトN1は２次停止杆６上にて停止する。この２
次停止杆６上に正姿勢で停止すると、当接杆１０
は側壁１ａと同平面に位置する溶接ナツトN1の
ため、矢印イ方向に進むことはできず、間隙１１
ａ，１１ｂ内の空気圧をそのまま維持せしめる。
したがつてスイツチ対設杆１３は依然として矢印
ロ方向に付勢され、スイツチ盤１４とスイツチ面
１６の間隔は一定状態を保つこととなり、これに
よつて溶接ナツトN1が正姿勢にあることを正逆
選別機構１７に通知する。一方セレクタ２は矢印
ニ方向に再度前進し溶接ナツトN1はN2同様通過
孔７より正逆選別機構１７の通路１８へ落下す
る。該正逆選別機構においては、前記正逆感知機
構９からの正姿勢である旨の連絡により通路切換
盤１９を矢印ホ方向に移動せしめ通過路２０を通
路１８及び通過側チユーブ２２に合致せしめる。
これによつて通路１，１８、通過路２０、通過側
チユーブ２２は接続し、溶接ナツトはこれを通過
して供給ヘツド２６に達し、該供給ヘツド２６に
より正姿勢にて噴出され所定の溶接に供される。 At the point when the welding nut N2 falls, the selector 2 is pushed down by the spring 3 in the direction opposite to the arrow D, and the primary stop lever 4 also retreats, and the primary stop lever 4 The welding nut N1 comes out of the hole d and falls due to its own weight.
At this time, by pressing selector 2,
The secondary stop lever 6 is also retracted, so the welding nut N 1 stops on the secondary stop lever 6. This 2
When it stops on the next stop rod 6 in a normal posture, the contact rod 10
Since the welding nut N1 is located on the same plane as the side wall 1a, it cannot proceed in the direction of arrow A, and the gap 11
The air pressure inside a and 11b is maintained as it is.
Therefore, the switch rod 13 is still biased in the direction of the arrow B, and the distance between the switch panel 14 and the switch face 16 remains constant, thereby indicating that the welding nut N1 is in the normal position. The forward/reverse sorting mechanism 17 is notified. On the other hand, the selector 2 moves forward again in the direction of arrow N, and the welding nut N1 , like the welding nut N2 , falls from the passage hole 7 into the passage 18 of the forward/reverse sorting mechanism 17. In the forward/reverse sorting mechanism, the passage switching board 19 is moved in the direction of the arrow H in response to the message from the forward/reverse sensing mechanism 9 that the orientation is normal, and the passageway 20 is brought into alignment with the passageway 18 and the passage-side tube 22.
As a result, the passages 1 and 18, the passage passage 20, and the passage tube 22 are connected, and the welding nut passes through them and reaches the supply head 26, where it is ejected in a normal position and welded as desired. Served.
次に溶接ナツトN3が逆姿勢で送入された場合
の作動について説明する。逆姿勢の溶接ナツト
N3は、前記N1と同様にして２次停止杆６上に載
置される。この時溶接ナツトN3は、第４図Ｃに
示した如く逆姿勢にあるため、第５図の拡大図に
示したように、当接杆１０は間隔ｌ分だけ前進
し、それだけ間隙１１ａ，１１ｂ内の空圧は低下
し、スイツチ対設杆１３を矢印イとは反対の矢印
ロ方向に吸引する。これによつてスイツチ盤１４
とスイツチ面１６との間隙は拡大し、これを正逆
選別機構１７に連絡する。 Next, the operation when the welding nut N3 is fed in an inverted position will be explained. Welding nut in reverse position
N3 is placed on the secondary stop lever 6 in the same manner as N1 . At this time, the welding nut N3 is in the opposite position as shown in FIG. The air pressure inside 11b decreases, and the switch rod 13 is attracted in the direction of arrow B, which is opposite to arrow A. As a result, the switch panel 14
The gap between the switch face 16 and the switch face 16 is enlarged, and this is communicated to the forward/reverse sorting mechanism 17.
この連絡を受けて、正逆選別機構１７において
は、通路切換盤１９を矢印ヘ方向に移動せしめ、
矯正路２１を通路１８及び矯正側チユーブ２４に
合致せしめる。これによつて通路１，１８、矯正
路２１、矯正側チユーブ２４は接続され、該矯正
側チユーブ２４内に落下して行く。そして矯正側
チユーブ２４は、前述の如く中途部分に180゜の捩
り部分２５を有することから当初逆の姿勢で矯正
側チユーブ２４に入つた溶接ナツトは、前記捩り
部分２５によつて正姿勢に矯正され供給ヘツドに
移送され、正姿勢にて溶接に供される。 Upon receiving this communication, the forward/reverse sorting mechanism 17 moves the passage switching board 19 in the direction of the arrow.
The correction path 21 is made to match the passage 18 and the correction side tube 24. As a result, the passages 1 and 18, the correction path 21, and the correction tube 24 are connected, and the tube falls into the correction tube 24. Since the straightening tube 24 has a 180° twisted portion 25 in the middle as described above, the weld nut that initially entered the straightening tube 24 in the opposite position is corrected to a normal position by the twisted portion 25. It is then transferred to the supply head and subjected to welding in the normal position.
以上説明した如く、本考案においては、シユー
タより正・逆の区別なくとりまぜて送られてくる
ナツトを、機械的構成により、その供給途中にお
いて正・逆を識別し、かつそれぞれ異なる経路に
仕分けて移送することにより、逆向きのナツトの
みを反転して正位置に矯正するようにしたため
に、溶接作業において作業の等率化を図ることが
可能であるとともに、投光器及び光電素子をもつ
受光器、電子部品を用いないことから、安価であ
り故障の発生率も低く、修理等も簡単に行うこと
ができるものである。 As explained above, in the present invention, the nuts that are sent from the shooter without distinction between forward and reverse nuts are distinguished by a mechanical structure during the feeding process, and are sorted into different routes. By transferring, only the nut in the opposite direction is reversed and corrected to the correct position, so it is possible to equalize the work rate in the welding work, and it is also possible to use a light emitter and a light receiver with a photoelectric element, Since it does not use electronic parts, it is inexpensive, has a low failure rate, and can be easily repaired.
第１図Ａ，Ｂは、従来のエアーセンサー検出法
の一実施例を示す断面図、第２図は、本考案の一
実施例を示す断面図、第３図は同チユーブ部分を
示す斜視図、第４図Ａは溶接ナツトの正面図、Ｂ
は左側面図、Ｃは右側面図、第５図は当接杆が溶
接ナツトに当接した状態を示す部分拡大断面図で
ある。
１……通路、２……セレクタ、４……１次停止
杆、６……２次停止杆、７……通過孔、１０……
当接杆、１９……通路切換盤、２２……通過側チ
ユーブ、２４……矯正側チユーブ。
1A and 1B are cross-sectional views showing one embodiment of the conventional air sensor detection method, FIG. 2 is a cross-sectional view showing one embodiment of the present invention, and FIG. 3 is a perspective view showing the same tube portion. , Figure 4A is a front view of the welding nut, B
5 is a left side view, C is a right side view, and FIG. 5 is a partially enlarged sectional view showing a state in which the abutment rod is in contact with the welding nut. 1... Passageway, 2... Selector, 4... Primary stop lever, 6... Secondary stop lever, 7... Passing hole, 10...
Abutting rod, 19...passage switching board, 22...passage side tube, 24...correction side tube.
Claims (1)
で通過せしめる通路と、該通路途上において前記
溶接ナツトの一面に当接し、凹部への当接の有無
により通過する溶接ナツトの姿勢の正逆を感知す
る正逆感知機構と、２本の溶接用ナツト通路を有
する切換盤にて前記正逆感知機構により判断され
た正姿勢と逆姿勢の溶接ナツトを異別通路にて移
送する選別機構と、該選別機構により選別された
正姿勢の溶接ナツトを通過させる直状のチユーブ
と逆姿勢の溶接ナツトを通過させる中途部分が
180゜捩られたチユーブとを有する矯正機構とから
なることを特徴とする溶接ナツト正逆選別矯正装
置。 A passage through which a welding nut having a concave portion on one side is passed sequentially at a constant speed, and a passage in which the welding nut comes into contact with one side of the welding nut during the passage, and detects whether the welding nut passing through the passage is in a forward or reverse direction depending on whether or not it makes contact with the concave portion. a forward/reverse sensing mechanism; a sorting mechanism for transporting welding nuts in the normal and reverse positions determined by the forward/reverse sensing mechanism through different paths in a switching board having two welding nut passages; and the sorting mechanism. There is a straight tube that passes through the welding nuts in the normal position that are selected by the mechanism, and a midway part that allows the welding nuts in the reverse orientation to pass through.
A weld nut forward/reverse sorting and straightening device comprising a straightening mechanism having a tube twisted by 180°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980152811U JPH0123670Y2 (en) | 1980-10-25 | 1980-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980152811U JPH0123670Y2 (en) | 1980-10-25 | 1980-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5776989U JPS5776989U (en) | 1982-05-12 |
| JPH0123670Y2 true JPH0123670Y2 (en) | 1989-07-19 |
Family
ID=29512099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980152811U Expired JPH0123670Y2 (en) | 1980-10-25 | 1980-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0123670Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538538A (en) * | 1976-07-13 | 1978-01-26 | Toshiba Corp | Electronic computer |
-
1980
- 1980-10-25 JP JP1980152811U patent/JPH0123670Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538538A (en) * | 1976-07-13 | 1978-01-26 | Toshiba Corp | Electronic computer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5776989U (en) | 1982-05-12 |
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