JPH0351820Y2 - - Google Patents
Info
- Publication number
- JPH0351820Y2 JPH0351820Y2 JP19207084U JP19207084U JPH0351820Y2 JP H0351820 Y2 JPH0351820 Y2 JP H0351820Y2 JP 19207084 U JP19207084 U JP 19207084U JP 19207084 U JP19207084 U JP 19207084U JP H0351820 Y2 JPH0351820 Y2 JP H0351820Y2
- Authority
- JP
- Japan
- Prior art keywords
- optical head
- chassis
- locking member
- spring
- electromagnetic device
- 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
- 230000003287 optical effect Effects 0.000 claims description 47
- 230000013011 mating Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Moving Of Heads (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、光学式デイスクプレーヤに関するも
のである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an optical disc player.
本考案の出願は、プレーヤの可搬時や出荷時等
において重い（通常約400ｇ前後）光学ヘツドが
不足に自走して損傷を招くようなことを防止出来
るようにした光学式デイスクプレーヤの先願発明
（特願昭59−57076号）を先に出願した。
The application for this invention is an advanced optical disc player that prevents the heavy (usually around 400g) optical head from running on its own and causing damage when the player is being transported or shipped. The claimed invention (Japanese Patent Application No. 59-57076) was filed first.
この先願発明は、光学ヘツドの移動軌跡に沿つ
てシヤーシの下部にロツク部材を配置し、このロ
ツク部材を光学ヘツドの下部に設けた係合子に対
する係合位置と非係合位置との間で往復動自在に
構成し、このロツク部材を上記係合位置へ移動さ
せるばると上記非係合位置へ移動させる電磁装置
とをシヤーシの下部に設け、電磁装置への通電を
断つことによりロツク部材をばねによつて上記係
合位置へ移動させて係合子に係合させて光学ヘツ
ドを移動軌跡上の任意の位置でロツクするように
構成したものである。 In this prior invention, a locking member is disposed at the bottom of the chassis along the movement locus of the optical head, and the locking member is reciprocated between an engagement position and a non-engagement position with respect to an engaging element provided at the bottom of the optical head. A spring for moving the lock member to the engagement position and an electromagnetic device for moving the lock member to the non-engagement position are provided at the lower part of the chassis, and by cutting off power to the electromagnetic device, the lock member can be moved into the spring state. Accordingly, the optical head is moved to the engagement position and engaged with the engaging element, thereby locking the optical head at an arbitrary position on the movement locus.
そしてこの先願発明によれば、電源をOFFし
た時やAC電源を断つた時に、ロツク部材がばね
によつて係合子に自動的に係合して、光学ヘツド
を無操作でロツクすることが出来る上に、電源を
ONした時やAC電源を接続すれば、ロツク部材
が電磁装置によつて係合子から自動的に離間され
て、光学ヘツドを無操作でロツク解除することが
出来て非常に都合のよいものである。 According to this prior invention, when the power is turned off or the AC power is cut off, the locking member is automatically engaged with the engaging element by the spring, and the optical head can be locked without any operation. turn on the power
When turned on or when AC power is connected, the locking member is automatically separated from the engaging element by the electromagnetic device, making it possible to unlock the optical head without any operation, which is extremely convenient. .
しかしながらこの先願発明では、組立て時にお
ける光学ヘツド、ロツク部材、ばね及び電磁装置
等を組立てたいわゆる部組段階（但し未だ電源は
供給されていない。）で既に光学ヘツドがロツク
部材によつてロツクされてしまう関係で、この後
に、他の部品を組立てたり、各部の調整等の作業
を行うために光学ヘツドを移動させる必要が生じ
た時に大きな不都合があつた。
However, in this prior invention, the optical head is already locked by the locking member at the so-called subassembly stage (however, power is not yet supplied) in which the optical head, locking member, spring, electromagnetic device, etc. are assembled. This caused great inconvenience when it became necessary to move the optical head in order to assemble other parts or adjust each part.
即ち、この部組段階でいちいち電源を供給する
のは非常に面倒であるために、実際の組立ライン
では、作業者が、シヤーシの上面に設けられてい
る光学ヘツドの移動用の開口からシヤーシの下側
に手を挿入して、指先でロツク部材をばねに抗し
て非係合位置へ移動させては光学ヘツドを移動さ
せているが、狭い場所に手を挿入しなければなら
ないこの作業は、手指を怪我し易く非常に危険で
ある等、実際上大変であつた。 In other words, it is extremely troublesome to supply power to each assembly at this stage, so in an actual assembly line, a worker must open the chassis from the opening for moving the optical head provided on the top surface of the chassis. The optical head is moved by inserting the hand underneath and using the fingertips to move the locking member against the spring to the disengaged position, but this work requires inserting the hand into a narrow space. This was difficult in practice, as it was very dangerous and could easily injure hands and fingers.
本考案は、上記の如き部組段階で、いちいち電
源を供給しなくても、ロツク部材による光学ヘツ
ドのロツク部材を極めて容易に解除出来るように
するものである。 The present invention makes it possible to very easily release the locking member of the optical head at the above-mentioned assembly stage without having to supply power each time.
本考案は、先願発明に記載の光学式デイスクプ
レーヤにおいて、上記ロツク部材を上記ばねに抗
して上記係合位置から上記非係合位置へ移動操作
することが出来る解除レバーを上記シヤーシの上
部に取付けたことを特徴とする光学式デイスクプ
レーヤである。
In the optical disc player according to the prior invention, the present invention provides a release lever that can be operated to move the locking member from the engagement position to the non-engagement position against the spring. This is an optical disc player characterized by being attached to.
本考案は、上記部組段階で、いちいち電源を供
給して電磁装置を通電しなくても、シヤーシの上
部に取付けられている解除レバーを操作すること
によつて、ロツク部材をばねに抗して非係合位置
へ移動操作して係合子から外し、光学ヘツドのロ
ツクを極めて容易に解除することが出来る。
The present invention allows the locking member to resist the spring by operating the release lever attached to the top of the chassis during the above-mentioned assembly stage, without the need to supply power and energize the electromagnetic device. The lock of the optical head can be released very easily by moving it to the non-engaging position and removing it from the engaging element.
以下、本考案を適用した光学式デイスクプレー
ヤの一実施例を図面に基づき説明する。
An embodiment of an optical disc player to which the present invention is applied will be described below with reference to the drawings.
先ず第１図及び第２図に示す如く、例えばアル
ミ合金によつてダイキヤスト加工されたシヤーシ
１上に光学ヘツド２とターンテーブル３とが取付
けるられている。そしてデイスク４がターンテー
ブル３上に水平に装着され、ターンテーブル４を
駆動するモータ（図示せず）によつて回転駆動さ
れる。光学ヘツド２にはデイスク４の記録面であ
る下面にレーザ光を照射し及びその反射光を受光
する記録（書込み）及び／又は再生（読取り）用
ヘツド５が設けられている。そして光学ヘツド２
はシヤーシ１に設けられた開口１１内でガイド軸
６及びガイドレール７によつて案内されてデイス
ク４の半径方向である矢印ａ方向に直線的に移動
されるように構成されている。そしてこの実施例
では光学ヘツド２の駆動機構としてシヤーシ１の
下部に取付けられたラツク＆ピニオン機構が使用
されている。即ち光学ヘツド２の一端部の下部に
ラツク８が固着され、それに噛合されたピニオン
９を正逆回転駆動するモータ１０がシヤーシ１の
下部に取付けられている。そしてモータ１０によ
りピニオン９が矢印ｂ方向に正逆回転駆動される
ことによつてラツク８が駆動されて、光学ヘツド
２が矢印ａ方向に移動されてデイスク４の記録及
び／又は再生を行うように構成されている。 First, as shown in FIGS. 1 and 2, an optical head 2 and a turntable 3 are mounted on a chassis 1 made of, for example, die-cast aluminum alloy. A disk 4 is mounted horizontally on the turntable 3 and is rotationally driven by a motor (not shown) that drives the turntable 4. The optical head 2 is provided with a recording (writing) and/or reproducing (reading) head 5 that irradiates the lower surface, which is the recording surface, of the disk 4 with a laser beam and receives the reflected light. and optical head 2
is configured to be guided within an opening 11 provided in the chassis 1 by a guide shaft 6 and a guide rail 7, and to be moved linearly in the direction of arrow a, which is the radial direction of the disk 4. In this embodiment, a rack and pinion mechanism attached to the lower part of the chassis 1 is used as the drive mechanism for the optical head 2. That is, a rack 8 is fixed to the lower part of one end of the optical head 2, and a motor 10 is attached to the lower part of the chassis 1 for driving a pinion 9 meshed with the rack 8 in forward and reverse rotation. The pinion 9 is driven by the motor 10 to rotate forward and backward in the direction of the arrow b, thereby driving the rack 8, and the optical head 2 is moved in the direction of the arrow a to perform recording and/or reproduction on the disk 4. It is composed of
次に第３Ａ図及び第３Ｂ図に示す如く、光学ヘ
ツド２の一端側の下部に垂直状のピンである係合
子１２が固着されている。そして第１図及び第２
図に示す如く、係合子１２の移動軌跡に沿つて長
尺のロツク部材１３が配置されている。このロツ
ク部材１３は例えば板金加工されたものであつ
て、係合子１２の移動範囲の全域に亘つて鋸歯状
の係合部１４が設けられている。そして第１図及
び第図に示す如く、ロツク部材１３の長手方向の
両端部はシヤーシ１の下面に固着された一対の支
持板１５に一対の支点軸１６を介して回動自在に
枢支されていて、このロツク部材１３は第２図に
実線及び第３Ａ図に示す如く係合部１５によつて
係合子１２に係合する係合位置と、第２図に１点
鎖線及び第３Ｂ図に示す如く非係合位置との間で
矢印ｃ及びｄ方向に往復動自在に構成されてい
る。そしてこのロツク部材１３の一端にはアーム
１７が一体に設けられていて、このアーム１７と
シヤーシ１の下部とに設けられた一対のばね係止
部１８，１９間に係止されたばね２０によつて第
３Ａ図で矢印ｃ方向に回動されて前記係合位置へ
移動付勢されている。そしてロツク部材１３を前
記非係合位置へ移動させる電磁装置２１がばね２
０とは反対側の位置でシヤーシ１の下部に取付け
られており、その吸引杆２２とアーム１７とがリ
ンク２３によつて連結されている。 Next, as shown in FIGS. 3A and 3B, an engaging element 12, which is a vertical pin, is fixed to the lower part of one end of the optical head 2. As shown in FIGS. And Figures 1 and 2
As shown in the figure, a long locking member 13 is arranged along the movement locus of the engaging element 12. This locking member 13 is made of sheet metal, for example, and is provided with a sawtooth-shaped engaging portion 14 over the entire range of movement of the engaging element 12. As shown in FIGS. 1 and 1, both ends of the lock member 13 in the longitudinal direction are rotatably supported on a pair of support plates 15 fixed to the lower surface of the chassis 1 via a pair of fulcrum shafts 16. The locking member 13 is in an engagement position in which the engaging portion 15 engages with the engager 12 as shown by a solid line in FIG. 2 and in FIG. 3A, and in an engagement position shown by a dashed line in FIG. As shown in the figure, it is configured to be able to freely reciprocate in the directions of arrows c and d between the disengaged position and the non-engaged position. An arm 17 is integrally provided at one end of the locking member 13, and a spring 20 is engaged between the arm 17 and a pair of spring engaging portions 18 and 19 provided at the bottom of the chassis 1. As shown in FIG. 3A, it is rotated in the direction of arrow c and urged to move to the engagement position. Then, the electromagnetic device 21 for moving the locking member 13 to the non-engaging position is activated by the spring 2.
The suction rod 22 and the arm 17 are connected by a link 23.
以上の如き構成によれば、例えばプレーヤの電
源のONと共に電磁装置２１が通電される。する
と第３Ｂ図に示す如く、吸引杆２２が矢印ｅ方向
に吸引され、リンク２３を介してロツク部材１３
がばね２０に抗して矢印ｄ方向に回動されて前記
非係合位置へ移動され、その係合部１４が係合子
１２から離脱される。この結果、光学ヘツド２の
矢印ａ方向の移動が自由となる。 According to the above configuration, the electromagnetic device 21 is energized, for example, when the power of the player is turned on. Then, as shown in FIG. 3B, the suction rod 22 is attracted in the direction of arrow e, and the locking member 13 is pulled through the link 23.
is rotated in the direction of arrow d against the spring 20 and moved to the non-engaging position, and the engaging portion 14 is disengaged from the engaging element 12. As a result, the optical head 2 can move freely in the direction of arrow a.
次に例えばプレーヤの電源をOFFした時やAC
電源を断つと、電磁装置２１への通電が断たれる
ので、第３Ａ図に示す如く、ロツク部材１３がば
ね２０によつて矢印ｃ方向に回動されて前記係合
位置へ移動され、その鋸歯状をなす係合部１４が
係合子１２に係合されて、光学ヘツド２が自動的
にロツクされる。なおこの際係合部１４は係合子
１２がどの位置にあつても係合することが出来る
ので、光学ヘツド２を移動軌跡上の任意の位置で
ロツクすることが出来る。 Next, for example, when the player is turned off or the AC
When the power is turned off, the power to the electromagnetic device 21 is cut off, so that the locking member 13 is rotated by the spring 20 in the direction of arrow c and moved to the engagement position, as shown in FIG. 3A. The sawtooth-shaped engaging portion 14 is engaged with the engaging member 12, and the optical head 2 is automatically locked. At this time, since the engaging portion 14 can engage the engaging element 12 at any position, the optical head 2 can be locked at any position on the movement trajectory.
なお電磁装置２１の通電及び非通電の切換え
は、前述した電源のON−OFFの他にも、例えば
ターンテーブル３上へのデイスク４の装着後にプ
レイ釦が押された時に電磁装置２１を通電状態と
し、デイスク４の記録及び／又は再生後にエジエ
クト釦が押された時に電磁装置２１を非通電状態
とすることも出来る。 In addition to turning the power on and off as described above, the electromagnetic device 21 can be switched between energized and de-energized, for example, when the play button is pressed after the disc 4 is mounted on the turntable 3. Then, when the eject button is pressed after recording and/or reproducing the disc 4, the electromagnetic device 21 can be de-energized.
しかして、本考案の光学式デイスクプレーヤに
おいては、第１図及び第２図に示す如く、シヤー
シ１の上部に解除レバー２６を取付けている。こ
の解除レバー２６はシヤーシ１上に取付けられた
支点軸２７に第２図で矢印ｆ，ｇ方向に回動自在
に枢支させたものであり、この解除レバー２６と
シヤーシ１の上部とに設けられた一対のばね係止
部２８，２９間に係止されたばね３０によつて第
２図で矢印ｆ方向に回動付勢されている。そして
この解除レバー２６の先端から下方に一体に折曲
げられた突片２６ａが第３Ａ図及び第３Ｂ図に示
す如くシヤーシ１に設けられた小開口３１からシ
ヤーシ１の下方に垂直状に挿入されて、その突片
２６ａがアーム１７の上端部に設けられている切
欠き３２内に挿入されている。なお解除レバー２
６には指を掛け易いような突片２６ｂが上方に一
体に折曲げられている。 Therefore, in the optical disc player of the present invention, a release lever 26 is attached to the upper part of the chassis 1, as shown in FIGS. 1 and 2. This release lever 26 is rotatably supported on a fulcrum shaft 27 mounted on the chassis 1 in the directions of arrows f and g in FIG. A spring 30 locked between a pair of spring locking portions 28 and 29 rotates in the direction of arrow f in FIG. A protruding piece 26a integrally bent downward from the tip of the release lever 26 is vertically inserted below the chassis 1 through a small opening 31 provided in the chassis 1, as shown in FIGS. 3A and 3B. The projecting piece 26a is inserted into a notch 32 provided at the upper end of the arm 17. In addition, release lever 2
6 has a protruding piece 26b bent upward so that it is easy to put a finger on it.
以上の如く構成された本考案の光学式デイスク
プレーヤによれば、シヤーシ１の上部において、
解除レバー２６の突片２６ｂに指を掛けて、この
解除レバー２６をばね３０に抗して第２図で矢印
ｇ方向に回動操作すると、第３Ｂ図の如く、その
解除レバー２６の突片２６ａがアーム１７の上端
部の電磁装置２１側の突片１７ａに当接して、そ
のアーム１７をばね２０に抗して矢印ｄ方向に回
動操作する。この結果、前述した如く電磁装置２
１に通電した時と同じように、ロツク部材１３が
第２図に１点鎖線で示された非係合位置まで矢印
ｄ方向に移動操作されて、その係合部１４が係合
子１２から外されて、光学ヘツド２のロツクが解
除される。 According to the optical disc player of the present invention configured as described above, in the upper part of the chassis 1,
When you put your finger on the protrusion 26b of the release lever 26 and rotate the release lever 26 in the direction of arrow g in FIG. 2 against the spring 30, the protrusion on the release lever 26 will open as shown in FIG. 26a contacts the protrusion 17a at the upper end of the arm 17 on the electromagnetic device 21 side, and rotates the arm 17 in the direction of arrow d against the spring 20. As a result, as mentioned above, the electromagnetic device 2
1, the locking member 13 is moved in the direction of arrow d to the non-engaging position shown by the dashed line in FIG. The optical head 2 is then unlocked.
従つて、組立て時における部組段階で、いちい
ち電磁装置２１に電源を供給しなくても、またシ
ヤーシ１に設けられている開口１１からシヤーシ
１１の下方に手を挿入して指先でロツク部材１３
を操作しなくても、シヤーシ１上に取付けられて
いる解除レバー２６を操作するだけで、ロツク部
材１３による光学ヘツド２のロツクを極めて容易
に解除して、光学ヘツド２を第１図及び第２図で
矢印ａ方向に自由に移動操作することが出来て、
各種の部品の組立てや調整等の作業を極めて楽に
行える。 Therefore, in the subassembly stage during assembly, it is not necessary to supply power to the electromagnetic device 21 one by one, or by inserting a hand under the chassis 11 through the opening 11 provided in the chassis 1 and locking the locking member 13 with the tip of a finger.
By simply operating the release lever 26 mounted on the chassis 1, the locking of the optical head 2 by the locking member 13 can be extremely easily released without having to operate the optical head 2 as shown in FIGS. In Figure 2, you can move freely in the direction of arrow a,
Work such as assembling and adjusting various parts can be done extremely easily.
以上、本考案の一実施例に付き述べたが本考案
の技術的思想に基づき各種の変更が可能である。 Although one embodiment of the present invention has been described above, various modifications can be made based on the technical idea of the present invention.
例えば係合子１２とそれに係合されるロツク部
材１３の係合部１４の形状はピンと鋸歯状形状と
に限定されるものではない。例えば係合部１４を
ゴム等の弾性体で構成する一方、ばね２０を強く
し、係合子１２を先端が尖鋭な板片等にて形成し
て、弾性体をその板片に強く押圧させることによ
つて光学ヘツド２をロツクすることも可能であ
る。 For example, the shapes of the engaging member 12 and the engaging portion 14 of the locking member 13 engaged therewith are not limited to the pin and sawtooth shapes. For example, while the engaging portion 14 is made of an elastic body such as rubber, the spring 20 is made strong and the engager 12 is made of a plate with a sharp tip, so that the elastic body is strongly pressed against the plate. It is also possible to lock the optical head 2 by.
またロツク部材１３及び解除レバー２６は必ず
しも回動方式で移動させるものである必要はな
く、直線往復動方式で移動させるものであつても
よい。 Further, the locking member 13 and the release lever 26 do not necessarily have to be moved in a rotational manner, but may be moved in a linear reciprocating manner.
本考案は、各種光学式デイスクを用いる各種光
学式デイスクプレーヤに適用可能である。
The present invention is applicable to various optical disc players using various optical discs.
本考案は、部組段階で、いちいち電源を供給し
なくても、シヤーシの上部に取付けられている解
除レバーを操作するだけで、ロツク部材による光
学ヘツドのロツクを極めて容易に解除して、光学
ヘツドを自由に移動操作することが出来るので、
各種部品の組立てや調整等の作業を極めて楽に行
える。従つて組立て作業能率を高めて、生産性を
向上させ得る。
This invention allows the optical head to be unlocked by the locking member very easily by simply operating the release lever attached to the top of the chassis without having to supply power to the optical head at the assembly stage. Since the head can be moved freely,
Work such as assembling and adjusting various parts can be done extremely easily. Therefore, it is possible to improve assembly work efficiency and improve productivity.
図面は本考案を適用した光学式デイスクプレー
ヤの一実施例を示したものであつて、第１図は斜
視図、第２図は同上の平面図、第３Ａ図及び第３
Ｂ図は第２図−線断面図である。
なお図面に用いられた符号において、１……シ
ヤーシ、２……光学ヘツド、１１……開口、１２
……係合子、１３……ロツク部材、１７……アー
ム、２０……ばね、２１……電磁装置、２６……
解除レバーである。
The drawings show an embodiment of an optical disc player to which the present invention is applied, in which FIG. 1 is a perspective view, FIG. 2 is a plan view of the same, and FIGS. 3A and 3.
Figure B is a sectional view taken along the line of Figure 2. In addition, in the symbols used in the drawings, 1... chassis, 2... optical head, 11... aperture, 12
... Engagement element, 13 ... Lock member, 17 ... Arm, 20 ... Spring, 21 ... Electromagnetic device, 26 ...
It is a release lever.
Claims (1)
にロツク部材を配置し、このロツク部材を光学ヘ
ツドの下部に設けた係合子に対する係合位置と非
係合位置との間で往復移動自在に構成し、このロ
ツク部材を上記係合位置へ移動させるばねと上記
非係合位置へ移動させる電磁装置とをシヤーシの
下部に設け、電磁装置への通電を断つことにより
ロツク部材をばねによつて上記係合位置へ移動さ
せて係合子に係合させて光学ヘツドを移動軌跡上
の任意の位置でロツクするように構成してある光
学式デイスクプレーヤにおいて、上記ロツク部材
を上記ばねに抗して上記係合位置から上記非係合
位置へ移動操作することが出来る解除レバーを上
記シヤーシの上部に取付けたことを特徴とする光
学式デイスクプレーヤ。 A lock member is disposed at the bottom of the chassis along the movement locus of the optical head, and this lock member is configured to be able to freely reciprocate between an engagement position and a non-engagement position with respect to an engagement element provided at the bottom of the optical head. A spring for moving the locking member to the engaged position and an electromagnetic device for moving it to the non-engaging position are provided at the bottom of the chassis, and by cutting off the power to the electromagnetic device, the locking member is moved by the spring to the engaged position. In an optical disk player configured to move the optical head to a mating position and engage an engaging element to lock the optical head at an arbitrary position on a movement trajectory, the locking member is moved against the spring to engage the engaging element. An optical disc player characterized in that a release lever that can be operated to move from the engaged position to the disengaged position is attached to the upper part of the chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19207084U JPH0351820Y2 (en) | 1984-12-18 | 1984-12-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19207084U JPH0351820Y2 (en) | 1984-12-18 | 1984-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61105963U JPS61105963U (en) | 1986-07-05 |
| JPH0351820Y2 true JPH0351820Y2 (en) | 1991-11-07 |
Family
ID=30749502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19207084U Expired JPH0351820Y2 (en) | 1984-12-18 | 1984-12-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0351820Y2 (en) |
-
1984
- 1984-12-18 JP JP19207084U patent/JPH0351820Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61105963U (en) | 1986-07-05 |
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