JPS6322998B2 - - Google Patents
Info
- Publication number
- JPS6322998B2 JPS6322998B2 JP10396682A JP10396682A JPS6322998B2 JP S6322998 B2 JPS6322998 B2 JP S6322998B2 JP 10396682 A JP10396682 A JP 10396682A JP 10396682 A JP10396682 A JP 10396682A JP S6322998 B2 JPS6322998 B2 JP S6322998B2
- Authority
- JP
- Japan
- Prior art keywords
- tip
- lead
- core
- cylinder
- tube
- 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
- 230000007246 mechanism Effects 0.000 claims description 19
- 238000005096 rolling process Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
【発明の詳細な説明】
この発明は、使用中芯が消耗した際および芯が
先金より突出していない場合、その先金の先端を
軸内へ向けて押圧動作を繰返すことにより、自動
的に芯を繰出し供給する自動操出式シヤープペン
シルに関するものである。[Detailed Description of the Invention] The present invention is capable of automatically automatically turning the tip of the tip into the shaft and repeating the pressing operation when the core wears out during use or when the core does not protrude beyond the tip. This invention relates to an automatic mechanical pencil that feeds and feeds a lead.
この種のものは以前にも提案されているが、機
構が複雑で組立困難なものや、組立てることが出
来ても筆記中の芯を押圧することにより自動的に
芯が繰出されるものはなかつた。 This type of device has been proposed before, but none of them have complicated mechanisms and are difficult to assemble, and even if they can be assembled, there are none that automatically feed out the lead by pressing the lead while writing. Ta.
この発明は、筆記中の芯を押しても、先金の先
端を押してもいずれも確実に芯を自動的に供給で
き、したがつて、芯の出が短くなつて先金すれす
れ迄待たなくとも途中で芯を押せば自動的に芯が
繰出され、紙面等に先金具の先が触れて紙面を破
つたり、又筆記中の芯が見えずに書きにくいとい
つたこともなく、確実に筆記中の芯を見ながら筆
記でき、さらにそれぞれの人の好みの芯出長さが
自由に得られるので、万人に適することができ、
誠に至便有益なシヤープペンシルを安価に提供す
ることを目的としたものである。 With this invention, the lead can be reliably supplied automatically whether you press the lead while writing or the tip of the tip, and therefore, you do not have to wait until the lead protrudes short and almost touches the tip. When you press the lead, the lead is automatically fed out, allowing you to write reliably without the tip of the metal tip touching the paper and tearing the paper, or making it difficult to write because you cannot see the lead while writing. You can write while looking at the lead inside, and each person can freely set the centering length to their preference, so it is suitable for everyone.
The purpose is to provide a truly convenient and useful sharpening pencil at a low price.
この発明の構成を図面に示す実施例により詳細
に説明すると、軸筒1は先端に口金2を螺着した
前軸筒3と後端にガイド筒4を固着した後軸筒5
とを中継管6で一体に連結されている。摺動筒7
は先金8と前部筒9と後部筒10とより構成さ
れ、前軸筒3内に摺動自在に嵌装し、後軸筒5内
に摺動自在に嵌装した芯収納筒11との間に圧縮
コイルばね12を張設して摺動筒7を先金8が口
金2の段部2aに、又芯収納筒11がガイド筒4
の段部4aに各々当接するように付勢する。先金
8の中心部にはゴム等よりなる弾性物質の芯保持
体13を具備し、又前部筒9の前部と後部および
後部筒10に各々芯挾持機構14,15,16を
形成する。第1挾持機構14は前部筒9の内面に
後方に向つて漏斗状となるテーパー面をもつた挾
着突起14aを形成し、該挾着突起14aに対応
するようにコレツトチヤツク14bを嵌合する。
コレツトチヤツク14bは先端に切割りを有する
膨大部14cが形成され、後端部に鍔部14dを
形成する。該鍔部14dと前記挾着突起14aと
の間には圧縮コイルばね14eを弾装すると共
に、膨大部14cの外周面に形成した凹部に転球
14fを挿入し、圧縮コイルばね14eの弾性に
よつてコレツトチヤツク14bの膨大部14cを
転球14fを介して挾着突起14aのテーパー面
によつて挾着する。第2芯挾持機構15は第1芯
挾持機構14と挾着突起15aが形成されている
部分が異なる他、同様に構成されている。即ち挾
着突起15aは前部筒9内に摺動自在に嵌装され
た内筒17に形成されており、該前部筒9に穿設
した嵌合孔9aに嵌入した転球18を前軸筒3の
内面と、内筒17の外周面に各々転球が転動しう
るように圧接する。第3芯挾持機構16は第1芯
挾持機構14と挾着突起16aが形成されている
部分およびコレツトチヤツク16bの後端部分が
異なる他、同様に構成されている。即ち挾着突起
16aは後部筒10に形成され、又コレツトチヤ
ツク16bの後端は芯収納筒11からの芯Aが1
本づつ送り出される様に漏斗状16gに形成され
ている。 The structure of the present invention will be explained in detail with reference to an embodiment shown in the drawings.A shaft cylinder 1 includes a front shaft cylinder 3 having a base 2 screwed onto its tip, and a rear shaft cylinder 5 having a guide cylinder 4 fixed to its rear end.
and are integrally connected by a relay pipe 6. Sliding tube 7
consists of a tip 8, a front cylinder 9, and a rear cylinder 10, and is slidably fitted into the front cylinder 3, and a core storage cylinder 11 slidably fitted into the rear cylinder 5. A compression coil spring 12 is stretched between the sliding tube 7 so that the tip 8 is attached to the stepped portion 2a of the base 2, and the core storage tube 11 is attached to the guide tube 4.
are urged so as to come into contact with the step portions 4a of the respective parts. A lead holder 13 made of an elastic material such as rubber is provided at the center of the tip 8, and lead holding mechanisms 14, 15, and 16 are formed at the front and rear portions of the front tube 9 and at the rear tube 10, respectively. . The first clamping mechanism 14 has a clamping protrusion 14a formed on the inner surface of the front cylinder 9 with a tapered surface that becomes funnel-shaped toward the rear, and a collect chuck 14b is fitted to correspond to the clamping protrusion 14a. .
The collet chuck 14b has an enlarged portion 14c having a notch at its tip, and a flange 14d at its rear end. A compression coil spring 14e is elastically mounted between the collar portion 14d and the clamping protrusion 14a, and a rolling ball 14f is inserted into a recess formed on the outer peripheral surface of the enlarged portion 14c, and the elasticity of the compression coil spring 14e is Therefore, the enlarged portion 14c of the collection chuck 14b is clamped by the tapered surface of the clamping protrusion 14a via the rolling ball 14f. The second core clamping mechanism 15 has the same structure as the first core clamping mechanism 14 except that the clamping protrusion 15a is formed in the second core clamping mechanism 14. That is, the clamping protrusion 15a is formed on an inner cylinder 17 that is slidably fitted into the front cylinder 9, and allows the rolling ball 18 fitted into the fitting hole 9a formed in the front cylinder 9 to be held forward. The inner surface of the shaft cylinder 3 and the outer peripheral surface of the inner cylinder 17 are pressed against each other so that the rolling balls can roll. The third core clamping mechanism 16 has the same structure as the first core clamping mechanism 14 except for the portion where the clamping protrusion 16a is formed and the rear end portion of the collect chuck 16b. That is, the clamping protrusion 16a is formed on the rear cylinder 10, and the rear end of the collection chuck 16b holds the core A from the core storage cylinder 11.
It is shaped like a funnel of 16g so that it can be sent out one book at a time.
なお、19は消ゴム体で、芯収納筒11の後端
に着脱自在に嵌合する。20はノツクバーであつ
て、芯収納筒11とガイド筒4との間に着脱自在
に嵌入する。 Note that 19 is a rubber eraser body, which is detachably fitted to the rear end of the lead storage tube 11. Reference numeral 20 is a knock bar, which is detachably fitted between the lead storage tube 11 and the guide tube 4.
次に作用について説明すると、第2図は3個の
コレツトチヤツクが芯をしつかり保持している状
態を示している。この状態から先金の先端を紙面
等に押しつけると、前部筒9、後部筒10を介し
て圧縮コイルばね12を圧縮し、先金8、前部筒
9、後部筒10が後方に移動する。この移動によ
つて前部筒9に嵌入されている転球18は前軸筒
3内面上を転動して後退するため、この転球18
の回転はこれと圧接している内筒17外周面を後
方に押す力となつて作用し、しかも前部筒9が後
退する移動量の2倍の速さで内筒17を後退させ
る。これによつて、第2芯挾持機構15全体は前
部筒9の速さの2倍の速さで後退するため、コレ
ツトチヤツク15bが芯Aを引張ろうとすると、
芯Aと等速で後退している第1、第3のコレツト
チヤツク14b,16bは増々夫々の挾着突起1
4a,16aに喰込んで芯Aをしつかりと挾持す
るから、第2のコレツトチヤツク15bは挾着突
起15aの移動量より相対的に僅かに遅れて移動
することになる。即ち先端方向に相対的に移動し
たことになるので、芯A上を空滑りして後退す
る。次に押圧力を解除してやると、圧縮コイルば
ね12の張力によつて復帰の方向に戻る。この時
は、前部筒9に嵌入配置された転球18は前述と
は逆に回転しながら戻つて来る。したがつて、内
筒17は摺動筒7の2倍の速さで復帰方向に動
く。このため第2のコレツトチヤツク15bは挾
着突起15aに喰込むようになり、しつかりと芯
を挾持し、復帰してくる。一方第1のコレツトチ
ヤツク14b、第3のコレツトチヤツク16bは
第2のコレツトチヤツク15bに挾着されている
芯Aが前部筒9後部筒10の移動量の2倍の速さ
で移動するため、夫々の挾着突起14a,16a
に対して相対的に先端方向に前進移動することに
なり挾着力は開放され芯Aは第1、第3のコレツ
トチヤツク14b,16b内を空滑りして前進す
る。したがつて、押圧力を完全に解除した状態で
は第4図の如く、押し込んだ量に相当する芯の出
が先金8先端より突出して筆記状態となる。この
筆記状態の時は圧縮コイルばね12の抗力以上の
力をかけなければ固定と考えられる。 Next, to explain the operation, FIG. 2 shows a state in which three collection chucks hold the core firmly. When the tip of the tip is pressed against the surface of the paper in this state, the compression coil spring 12 is compressed via the front tube 9 and rear tube 10, and the tip 8, front tube 9, and rear tube 10 move rearward. . Due to this movement, the rolling ball 18 fitted in the front cylinder 9 rolls on the inner surface of the front shaft cylinder 3 and retreats, so this rolling ball 18
The rotation acts as a force that pushes the outer circumferential surface of the inner cylinder 17 which is in pressure contact with the inner cylinder 17 rearward, and moreover, the inner cylinder 17 is moved back at twice the speed of the movement amount by which the front cylinder 9 moves backward. As a result, the entire second core holding mechanism 15 moves back at twice the speed of the front cylinder 9, so when the collection chuck 15b tries to pull the core A,
The first and third collect chucks 14b and 16b, which are retracting at the same speed as the core A, are increasingly attached to the respective clamping protrusions 1.
4a, 16a to firmly clamp the lead A, the second collection chuck 15b moves slightly later than the movement of the clamping protrusion 15a. That is, since it has moved relatively in the direction of the tip, it slides on the core A and retreats. Next, when the pressing force is released, the tension of the compression coil spring 12 returns to the original direction. At this time, the rolling ball 18 fitted into the front cylinder 9 returns while rotating in the opposite direction to that described above. Therefore, the inner cylinder 17 moves in the return direction at twice the speed of the sliding cylinder 7. Therefore, the second collect chuck 15b comes to bite into the clamping protrusion 15a, firmly clamps the core, and returns. On the other hand, the first collecting chuck 14b and the third collecting chuck 16b move at twice the speed of the movement of the front cylinder 9 and the rear cylinder 10, so that the core A, which is clamped to the second collecting chuck 15b, moves at twice the speed of the movement of the front cylinder 9 and the rear cylinder 10. Clamping protrusions 14a, 16a
As a result, the clamping force is released and the lead A slides forward in the first and third collect chucks 14b and 16b. Therefore, when the pressing force is completely released, as shown in FIG. 4, a portion of the lead corresponding to the amount of push-in protrudes from the tip of the tip 8, resulting in a writing state. In this writing state, unless a force greater than the resistance of the compression coil spring 12 is applied, it is considered to be fixed.
さて、この状態(第4図)から再び上記の如く
芯の先端を紙面等に押しつければ上記の作用を繰
返して次々と所望の長さの芯を突出させることが
出来る。 Now, from this state (FIG. 4), if the tip of the core is again pressed against the surface of the paper as described above, the above action can be repeated to make the cores of a desired length protrude one after another.
又筆記を終えて突出している芯Aを軸筒1内に
格納する際は、ノツクバー20を押しながら芯先
を紙面等に押せば良い(第5図)。これによつて
芯収納筒11と同時に押された圧縮コイルばね1
2が縮み、この芯収納筒11の前進移動によつて
第3のコレツトチヤツク16bの後端面を前方に
押出すようになり、この第3のコレツトチヤツク
16bは第2のコレツトチヤツク15bを、第2
のコレツトチヤツク15bはさらに第1のコレツ
トチヤツク14bを押すことになるので、それぞ
れのコレツトチヤツク14b,15b,16bは
挾着突起14a,15a,16aより開放される
ため、芯保持力は無くなる。しかし先金8内の芯
保持体13はその弾性力によつて芯Aを軽くくわ
えているので、そのままでは芯は同じ位置に残留
しているので、芯先を軽く軸筒1内に押せば、こ
れに従つて円滑に引込むことが出来る。 When writing is finished and the protruding lead A is to be stored in the barrel 1, it is sufficient to press the tip of the lead against the surface of the paper while pressing the knock bar 20 (FIG. 5). As a result, the compression coil spring 1 is pressed at the same time as the core storage cylinder 11.
2 contracts, and the forward movement of this lead storage cylinder 11 pushes the rear end surface of the third collect chuck 16b forward, and the third collect chuck 16b pushes the second collect chuck 15b forward.
Since the second collection chuck 15b further pushes the first collection chuck 14b, the respective collection chucks 14b, 15b, 16b are released from the clamping protrusions 14a, 15a, 16a, so that the core holding force is lost. However, the lead holder 13 inside the tip 8 holds the lead A lightly with its elastic force, so if left as is, the lead will remain in the same position. Accordingly, it can be retracted smoothly.
次に、初めて使用する場合には、前述の如くノ
ツクバー20を押すと、3個のコレツトチヤツク
14b,15b,16bがすべて開くため、芯A
は芯収納筒11から自重のみで先金8の芯保持体
13位置まで落ちて行く。次いで、ノツクバー2
0の押圧力を解除してやると、各々のコレツトチ
ヤツク14b,15b,16bは閉じて、いずれ
のコレツトチヤツクも芯Aをくわえる。この段階
で先金8の先を数回押圧繰返してやれば、前記の
如くそれぞれの芯挾持機構14,15,16が作
用協働して芯Aを送り出す。 Next, when using it for the first time, press the lock bar 20 as described above to open all three collection chucks 14b, 15b, and 16b, so that the core A
falls from the lead storage cylinder 11 to the position of the lead holder 13 of the tip 8 by its own weight alone. Next, Notsukuba 2
When the pressing force of 0 is released, each of the collection chucks 14b, 15b, 16b closes and the lead A is held in each collection chuck. At this stage, if the tip of the tip 8 is pressed several times, the respective lead holding mechanisms 14, 15, 16 work together to send out the lead A as described above.
さらに、使用中の芯が段々と短くなつて来て第
6図のように第2のコレツトチヤツク15bより
外れた場合、使用中の芯Aをいくら押しても繰出
されない。即ち、第2のコレツトチヤツク15b
が第1のコレツトチヤツク14bと協働しない場
合には、この時点でノツクバー20を押し、芯収
納筒11内の予備芯を自重で使用芯の末端に当接
させ、第2のコレツトチヤツク15bに新しい芯
Aをくわえさせ、ノツクバー20を離せば第2の
コレツトチヤツク15bと、第3のコレツトチヤ
ツク16bが新しい芯をくわえることになるか
ら、再び使用中の芯の先端を押すと今度は、第2
のコレツトチヤツク15bと第3のコレツトチヤ
ツク16bが協動して芯繰出し作用をはたすこと
になる。したがつて、新しい芯はどんどん芯の押
圧動作の繰返しで繰出され、使用中の芯を押して
来ることになり、再び、先金より新しい芯が突出
した状態になし得る。(第7図)
なお、上記実施例における第1芯挾持機構又は
第3芯挾持機構の内1個を省略して構成しても良
い。 Furthermore, if the lead in use becomes shorter and shorter and comes off the second collect chuck 15b as shown in FIG. 6, it will not be fed out no matter how much the lead A in use is pushed. That is, the second collect chuck 15b
If the wick does not cooperate with the first collect chuck 14b, press the knock bar 20 at this point, bring the spare lead in the lead storage cylinder 11 into contact with the end of the used lead by its own weight, and insert a new lead into the second collect chuck 15b. If you hold A in your mouth and let go of the lock bar 20, the second collect chuck 15b and third collect chuck 16b will hold a new lead, so if you press the tip of the lead you are using again, this time, the second collect chuck 15b and third collect chuck 16b will
The third collection chuck 15b and the third collection chuck 16b work together to perform the core feeding action. Therefore, the new lead is fed out by repeating the pressing operation of the lead, pushing the used lead back, and the new lead can again be in a state of protruding from the tip. (FIG. 7) Note that one of the first core clamping mechanism or the third core clamping mechanism in the above embodiment may be omitted.
以上の如く、この発明の自動繰出式シヤープペ
ンシルは、軸体先端の先金又は芯を押圧すること
によつて、確実に次々と芯を繰出し突出させるこ
とができるものであるから、筆記中軸体を持変え
ることなく、筆記を続行出来、使用者に芯出しの
煩わしさを感じさせず、使い勝手の優れたシヤー
プペンシルを提供できる。又その芯の繰出し機構
においては摺動筒に嵌入した転球を軸筒と内筒と
に圧接して摺動筒の移動につれて倍速で内筒を移
動させる極めて単純な構成を採用しているため、
製品にバラツキがなく、限られた軸筒内で確実に
作動させることができ品質管理が良く、組立が簡
単であつて、安価なシヤープペンシルを得ること
ができるという優れた効果を有するものである。 As described above, the self-feeding sharp pencil of the present invention is capable of reliably feeding out and ejecting the leads one after another by pressing the tip or lead at the tip of the shaft. To provide an easy-to-use sharp pencil that allows the user to continue writing without having to change the grip, and does not cause the user to feel the trouble of centering. In addition, the core feeding mechanism employs an extremely simple structure in which a rolling ball fitted into a sliding tube is pressed against the shaft tube and the inner tube, and the inner tube is moved at double speed as the sliding tube moves. ,
It has the excellent effects of being able to produce a sharp pencil with no product variation, reliable operation within a limited barrel, good quality control, easy assembly, and inexpensive sharpening pencils. .
第1図はこの発明のシヤープペンシル全体の縦
断側面図、第2図は要部の縦断側面図であつて、
芯が先金内に位置している不使用状態図、第3図
乃至第7図は作用状態を示す縦断側面の半截図で
あつて、第3図は先金を押圧した状態図、第4図
は先金の押圧を解除し芯が繰出された使用状態
図、第5図はノツクバーを押圧した状態図、第6
図は芯が短かくなつた状態図、第7図は新しい芯
が補充されて繰出された使用状態図を示す。
1……軸筒、7……摺動筒、8……先金、11
……芯収納筒、12……圧縮コイルばね、14…
…第1芯挾持機構、15……第2芯挾持機構、1
6……第3芯挾持機構、14a……挾持突起、1
4b……コレツトチヤツク、14e……圧縮コイ
ルばね、14f……転球、15a……挾着突起、
15b……コレツトチヤツク、15e……圧縮コ
イルばね、15f……転球、16a……挾着突
起、16b……コレツトチヤツク、16e……圧
縮コイルばね、16f……転球、17……内筒、
18……転球。
FIG. 1 is a vertical side view of the entire sharpening pencil of the present invention, and FIG. 2 is a vertical side view of the main parts,
FIGS. 3 to 7 are half-cut longitudinal side views showing the operating state, and FIG. 3 is a diagram of the state in which the tip is pressed, and FIG. The figure shows the state in use when the tip is released and the lead is fed out, Figure 5 shows the state when the knock bar is pressed, and Figure 6 shows the state in which the lead is fed out.
The figure shows a state in which the lead is shortened, and FIG. 7 shows a state in which a new lead is supplied and fed out. 1...Shaft tube, 7...Sliding tube, 8...Tips, 11
... Core storage cylinder, 12 ... Compression coil spring, 14 ...
...First core clamping mechanism, 15...Second core clamping mechanism, 1
6... Third core clamping mechanism, 14a... clamping protrusion, 1
4b... Collection chuck, 14e... Compression coil spring, 14f... Rolling ball, 15a... Clamping protrusion,
15b... Collection chuck, 15e... Compression coil spring, 15f... Rolling ball, 16a... Clamping protrusion, 16b... Collection chuck, 16e... Compression coil spring, 16f... Rolling ball, 17... Inner cylinder,
18... Rolling ball.
Claims (1)
コイルばねを張設して先金を軸筒先端方向に、芯
収納筒を軸筒後端方向に付勢し、又芯収納筒と摺
動筒先端間に少なくとも2個の芯挾持機構を形成
すると共に、これらの芯挾持機構には挾着突起
と、これに係止するコレツトチヤツクを有し、コ
レツトチヤツクは挾着突起に対して相対的に先端
方向の移動によりフリーとなるように構成され、
前記少なくとも1個の芯挾持機構挾着突起は摺動
筒内に嵌装された内筒に形成すると共に、該内筒
と軸筒にそれぞれ圧接し、摺動筒の移動量の倍速
で内筒を移動させる転球を摺動筒に配置し、先金
の押圧動作で自動的に芯を繰出し供給することを
特徴とする自動操出式シヤープペンシル。1 A compression coil spring is stretched between the sliding tube with the tip and the core housing tube, and the tip is biased toward the tip of the barrel and the core housing tube is biased toward the rear end of the barrel. At least two core clamping mechanisms are formed between the storage tube and the sliding tube tip, and these core clamping mechanisms have a clamping protrusion and a collect chuck that engages with the clamping protrusion. It is configured so that it becomes free by relatively moving in the direction of the tip,
The at least one core clamping mechanism clamping protrusion is formed on an inner cylinder fitted in the sliding cylinder, and is in pressure contact with the inner cylinder and the shaft cylinder, respectively, and moves the inner cylinder at twice the speed of the movement of the sliding cylinder. This self-dispensing sharp pencil is characterized by having a rolling ball disposed in a sliding tube that moves the tip, and automatically feeding and feeding the lead by pressing the tip.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10396682A JPS58220799A (en) | 1982-06-18 | 1982-06-18 | Automatic delivery type propelling pencil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10396682A JPS58220799A (en) | 1982-06-18 | 1982-06-18 | Automatic delivery type propelling pencil |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58220799A JPS58220799A (en) | 1983-12-22 |
JPS6322998B2 true JPS6322998B2 (en) | 1988-05-13 |
Family
ID=14368099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10396682A Granted JPS58220799A (en) | 1982-06-18 | 1982-06-18 | Automatic delivery type propelling pencil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58220799A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS629586U (en) * | 1985-07-03 | 1987-01-21 |
-
1982
- 1982-06-18 JP JP10396682A patent/JPS58220799A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS58220799A (en) | 1983-12-22 |
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