JPS5824662Y2 - Multi-axis transmission device for power transmission belt - Google Patents
Multi-axis transmission device for power transmission beltInfo
- Publication number
- JPS5824662Y2 JPS5824662Y2 JP1979048746U JP4874679U JPS5824662Y2 JP S5824662 Y2 JPS5824662 Y2 JP S5824662Y2 JP 1979048746 U JP1979048746 U JP 1979048746U JP 4874679 U JP4874679 U JP 4874679U JP S5824662 Y2 JPS5824662 Y2 JP S5824662Y2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- pulley
- power transmission
- transmission device
- presser
- 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
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Gear-Shifting Mechanisms (AREA)
Description
【考案の詳細な説明】
本考案は動力伝動用ベルトの多軸伝動装置に関するもの
であり、詳しくは１つの駆動用プーリと少なくとも２つ
以上の従動用プーリ、そしてテンションプーリにベルト
押えを取付けたベルトテンション付与部からなり、ベル
トテンション付与部によりベルト張力を弛めて動力伝達
を停止するときベルト押えによってベルト腹面な押えつ
つ、該ベルトを駆動用プーリから離し、動力の伝達を完
全に遮断する装置を提供することを主たる目的とし、更
に、これに附随し従動プーリの１つに変速プーリを付設
することにより、ベルトテンション付与部の押込み吐を
大きくして変速比を大きくすることが可能であり、且つ
スペースをとらない伝動装置を提供することを目的とす
るものである。[Detailed description of the invention] This invention relates to a multi-axis transmission device for a power transmission belt, and more specifically, it includes one driving pulley, at least two driven pulleys, and a tension pulley with a belt presser attached. Consisting of a belt tensioning section, when the belt tension is loosened by the belt tensioning section and power transmission is stopped, the belt is held down by the belt presser while the belt is released from the drive pulley, completely cutting off power transmission. The main purpose is to provide a device, and furthermore, by attaching a speed change pulley to one of the driven pulleys, it is possible to increase the pushing force of the belt tensioning section and increase the speed ratio. The object of the present invention is to provide a transmission device that is compact and does not take up much space.
従来、農機具、例えばコンバイン等の多軸伝動装置は第
１図に示すようにエンジンの駆動軸１に取付られた径の
異なるプーリ２から第１の従動軸である走行軸３に取付
けられた変速プーリ４（ベルト変速機構）や刈取機構を
有する第２の従動軸５に取付られたプーリ６に夫々Ｖベ
ル）７．７’を掛け、駆動軸１と走行軸３間にテンショ
ンプーリ８を押付けて走行軸３を変速させる機構とか、
更には第２図のように駆動軸１より走行軸３ヘテンシヨ
ンプーリ８を含み、ベルト変速機構で動力を伝達し、次
に走行軸３より刈取作動軸５にベルト１′を介して動力
を伝達する機構等が一般に知られている。Conventionally, a multi-shaft transmission device for agricultural machinery, such as a combine harvester, has a transmission system in which, as shown in Fig. 1, a pulley 2 of different diameters is attached to a drive shaft 1 of an engine, and a transmission shaft 3 is attached to a running shaft 3, which is a first driven shaft. A V-bell) 7.7' is applied to the pulley 6 attached to the pulley 4 (belt transmission mechanism) and the second driven shaft 5 having the reaping mechanism, and the tension pulley 8 is pressed between the drive shaft 1 and the running shaft 3. a mechanism that changes the speed of the traveling shaft 3,
Furthermore, as shown in FIG. 2, a tension pulley 8 is included in the drive shaft 1 to the traveling shaft 3, power is transmitted by a belt transmission mechanism, and then power is transmitted from the traveling shaft 3 to the reaping actuating shaft 5 via a belt 1'. Mechanisms for transmitting information are generally known.
な訃、ここで用いられるテンションプーリ８はその上下
移動によりクラッチ作用をさせることが出来るようにな
っているプーリな指称する。The tension pulley 8 used here is a pulley that can act as a clutch by moving up and down.
ところが、上記従来の各方式のような機能にあってはテ
ンションプーリによってベルト背面を内側に押し込む量
、即ち移動量が小さいため駆動軸と走行軸間の回転比を
大きくすることが不可能であるという欠点を有していた
。However, with the functions of the conventional methods described above, the amount by which the back of the belt is pushed inward by the tension pulley, that is, the amount of movement is small, so it is impossible to increase the rotation ratio between the drive shaft and the running shaft. It had the following drawback.
そのためこれを改善すべく第３図に図示するように、テ
ンションプーリ８によりベルトを外側に引張る方式のも
のが採用された。Therefore, in order to improve this problem, a system was adopted in which the belt is pulled outward by a tension pulley 8, as shown in FIG.
しかし、かかる方式の伝動機構の場合、駆動軸の回転が
走行軸へ伝わらない水準までテンションプーリを下方に
移動し張力を緩めた状態でクラッチ作用を与えたとき、
ベルトの振動によりベルトがＶプーリの溝から外れてし
オうｆ頃向があり、又、テンションプーリを外側に引張
るため余分なスペースを必要とする欠点があった。However, in the case of this type of transmission mechanism, when the tension pulley is moved downward to a level where the rotation of the drive shaft is not transmitted to the running shaft and the tension is relaxed, and the clutch action is applied,
There is a problem that the belt tends to come off from the groove of the V-pulley due to belt vibration, and additional space is required to pull the tension pulley outward.
このような点を改善した装置は第４図に図示するが駆動
用プーリ９、変速プーリ１０、従動用プーリ１１にＶベ
ルト１２を取付け、駆動プーリ９と変速プーリ１０間に
テンションプーリ１３を付設し、該プーリ１３を支点Ａ
を中心にして矢印の方向へベルトを押付け、その押付は
移動量を変匿して変速プーリ１０を有する軸の回転数を
変化させるものである。A device that improves these points is shown in FIG. 4, and a V-belt 12 is attached to the drive pulley 9, the speed change pulley 10, and the driven pulley 11, and a tension pulley 13 is attached between the drive pulley 9 and the speed change pulley 10. and the pulley 13 is placed at the fulcrum A.
The belt is pressed in the direction of the arrow with the belt at the center, and the pressing changes the amount of movement and changes the rotational speed of the shaft having the speed change pulley 10.
しかし、この装置もベルトが緊張状態から弛み状態にな
ってた際、第５図に示すように、図示の如き矢印の方向
に回転していたベルト１２は駆動用プーリ９と従動用プ
ーリ１１間で緊張状態、駆動プーリ９と変速プーリ１０
間及び変速プーリ１０と従動用プーリ１１間で弛み状態
になる。However, in this device, when the belt changes from a tensioned state to a slackened state, as shown in FIG. In tension state, drive pulley 9 and speed change pulley 10
There is slack between the transmission pulley 10 and the driven pulley 11.
そして、駆動用プーリ９ではベルトとプーリ間の楔効果
により、ベルト１２は該プーリ９の溝へくり込まれ、プ
ーリ９より外れて行くとき内側に彎曲する。In the drive pulley 9, due to the wedge effect between the belt and the pulley, the belt 12 is wedged into the groove of the pulley 9, and as it moves away from the pulley 9, it curves inward.
そのため、駆動用プーリ９とベルト１２で摩擦力を生じ
てベルト１２に回転を与え、それによって、変速プーリ
１０及び従動用プーリ１１も回転する現象が生じていた
。Therefore, a frictional force is generated between the drive pulley 9 and the belt 12, causing the belt 12 to rotate, which causes the speed change pulley 10 and the driven pulley 11 to also rotate.
これは、ベルトを弛めた場合の動力伝達を遮断する目的
を充分達成されない。This does not sufficiently achieve the purpose of interrupting power transmission when the belt is loosened.
本考案はこのような欠点を改善するものであり、その特
徴は駆動用プーリと少なくとも２つ以上の従動用プーリ
に動力伝動用ベルトを取付けた多軸伝動装置に訃いて、
駆動用プーリとベルト走行方向に該駆動用プーリと隣接
する変速プーリである従動用プーリ間に細長い板状体で
ベルト入口先端を取付ベルトの内側方向へ彎曲せしめた
ベルト押えを取付ベルトの内側になるようアイドラプー
リに固定したベルトテンション付与部を付設し、且つベ
ルト押えとアイドラプーリ間に上記ベルトを介在せしめ
、アイドラプーリに固定した支持アームの支点を中心に
ベルトテンション付与部を移動可能とした動力伝動用ベ
ルトの多軸伝動装置にある。The present invention aims to improve these drawbacks, and its features include a multi-shaft transmission device in which power transmission belts are attached to a driving pulley and at least two or more driven pulleys.
An elongated plate-shaped body is installed between the driving pulley and a driven pulley, which is a speed change pulley adjacent to the driving pulley in the belt running direction, and a belt presser whose belt inlet tip is bent inward of the belt is installed on the inside of the belt. A belt tension applying part fixed to the idler pulley is attached so that the belt tension applying part is fixed to the idler pulley, and the belt is interposed between the belt presser and the idler pulley, so that the belt tension applying part can be moved around the fulcrum of the support arm fixed to the idler pulley. Found in multi-axis transmission devices for power transmission belts.
以下、本考案の具体的内容を添付図面に従って説明する
。Hereinafter, the specific contents of the present invention will be explained with reference to the accompanying drawings.
第６図は本考案の伝動装置の一例であり、１４はエンジ
ン、モータ等に連結した駆動軸であり、これに駆動用プ
ーリ１５が付設されている。FIG. 6 shows an example of the transmission device of the present invention, and 14 is a drive shaft connected to an engine, a motor, etc., and a drive pulley 15 is attached to this.
１６は第］の従動軸で、変速プーリ１７が取付けられ、
又、１８は従動用プーリ１９を取付けた第２の従動軸で
ある。16 is a second driven shaft, to which a variable speed pulley 17 is attached;
Further, 18 is a second driven shaft to which a driven pulley 19 is attached.
そして、このような駆動用プーリ１５と変速プーリ１７
、従動用プーリ１９にＶベルト２０が掛けられ、駆動用
プーリ１５と変速プーリ１７間にベルト押え２１をベル
ト２０の内側になるようアイドラープーリ２２に固定し
たベルトテンション付与部２３を付設して、ベルト押え
２１とアイドラープーリ２２間に上記ベルト２０を介在
させ、アイドラープーリ２２に固定した支持アーム２４
の支点Ｂを中心にベルトテンション付与部２３を移動９
能として全体の装置が構成されて、矢印の如き方向にベ
ルト２０が走行する。Then, such a drive pulley 15 and a speed change pulley 17
, a V-belt 20 is hung around the driven pulley 19, and a belt tensioning section 23 is attached between the drive pulley 15 and the speed change pulley 17, with a belt presser 21 fixed to the idler pulley 22 so as to be inside the belt 20. The belt 20 is interposed between the belt presser 21 and the idler pulley 22, and a support arm 24 is fixed to the idler pulley 22.
Move the belt tension applying section 23 around the fulcrum B of 9
The entire device is functionally configured such that the belt 20 runs in the direction of the arrow.
第７図は前記構成におけるベルトテンション付与部２３
の拡大図であるが、固定軸２５に平プーリであるアイド
ラープーリ２２、支持アーム２４が取付けられている。FIG. 7 shows the belt tension applying section 23 in the above configuration.
In this enlarged view, an idler pulley 22, which is a flat pulley, and a support arm 24 are attached to a fixed shaft 25.
そして、又、ベルト押え２１が固定棒２６を介して固定
軸２５に取付けられている。Furthermore, a belt presser 21 is attached to a fixed shaft 25 via a fixed rod 26.
このベルト押え２１はアイドラープーリ２２の巾とはマ
同等の巾を有し、しかも、ベルト押え２１の固定棒２６
はアイドラープーリ２２の両側面にオたがらず、−４に
固定され、ベルト２０の取付けを容易にする。This belt presser 21 has a width equivalent to that of the idler pulley 22, and the fixing rod 21 of the belt presser 21 has a width equivalent to that of the idler pulley 22.
are not attached to both sides of the idler pulley 22 and are fixed at -4 to facilitate attachment of the belt 20.
ベルト２０が図示の如く矢印の方向に回転する場合は、
ベルト押え２１の先端２１′は内側に彎曲させてベルト
腹面の当りを防止する。When the belt 20 rotates in the direction of the arrow as shown,
The tip 21' of the belt presser 21 is curved inward to prevent it from hitting the belly surface of the belt.
特に、コグベルトを使用する場合は、コグ部がベルト押
えの先端に当る可能性が大きいので、この効果は太きい
。In particular, when a cog belt is used, there is a high possibility that the cog portion will hit the tip of the belt presser, so this effect is significant.
アイドラープーリ２２に係合しているベルト２０とベル
ト押え２１の間隔はベルト腹面２σとベルト押え２１間
で１．５〜２５朋である。The distance between the belt 20 engaged with the idler pulley 22 and the belt presser 21 is 1.5 to 25 mm between the belt belly surface 2σ and the belt presser 21.
１．５ｍｍ以下ではベルトの振動によりベルトがベルト
押えに接触し、２５間以上ではベルト張力を減少せしめ
る過程で瞬間に動力伝達を遮断することが困難となる。If it is less than 1.5 mm, the belt will come into contact with the belt presser due to belt vibration, and if it is more than 25 mm, it will be difficult to interrupt the power transmission instantaneously in the process of reducing belt tension.
本考案で使用する動力伝動用ベルトは種々のＶベルトで
あり、例えばカバー布を全面に被覆したランブトベルト
、ベルト両側面のみにカバー帆布ヲ有しないローエツジ
ベルト、あるいはベルｔ１面にコグを有するコグ付Ｖベ
ルト等がある。The power transmission belt used in the present invention is a variety of V-belts, such as a Lambert belt whose entire surface is covered with a cover cloth, a low-edge belt that does not have a cover cloth on both sides of the belt, or a cog belt that has a cog on one side of the belt. There are attached V-belts, etc.
従って、駆動用プーリを含むその他のプーリもベルト形
状に応じたものを使用することは言うまでもない。Therefore, it goes without saying that other pulleys, including the drive pulley, are used in accordance with the shape of the belt.
しかして、第６図に示す如きベルト走行状態からベルト
張力を弛めて動力伝達を停止した場合が第８図に示され
る。FIG. 8 shows a case where the belt tension is loosened from the belt running state as shown in FIG. 6 and power transmission is stopped.
ベルトテンション付４部２３を支持アーム２４の支点Ｂ
を中心にして図示矢印の方向にワイヤ等の公知の方法移
動させると、ベルト押え２１はベルト腹面を押し付けて
駆動用プーリ１５と変速プーリ１７間でベルトを抽斗せ
ると共に、該ベルト２０を駆動用プーリ１５より浮かせ
る。The 4 part 23 with belt tension is the fulcrum B of the support arm 24
When the belt presser 21 is moved by a known method such as a wire in the direction of the arrow shown in the figure, the belt presser 21 presses the belly surface of the belt to draw the belt between the driving pulley 15 and the speed change pulley 17, and also pulls the belt 20 into the driving position. Float it above pulley 15.
従って、駆動用プーリ１５とベルト２０間の摩擦力を生
ぜしめないようにして確実に動力伝達を遮断する。Therefore, the frictional force between the driving pulley 15 and the belt 20 is not generated, and power transmission is reliably interrupted.
尚、ベルトテンション付与部の付設位置は駆動用プーリ
１５とベルト回転方向に隣接する従動用変速プーリ１７
間が最も好ましい。The belt tension applying section is attached to the drive pulley 15 and the driven speed change pulley 17 adjacent to the belt rotation direction.
The most preferred is between.
これはベルトが駆動用プーリ１５と上記従動用変速プー
リ１７間で弛み状態になるため、低張力でベルトに張り
を付与することができ、又ベルトテンション付与部の押
込み量を大きくして変速比を大きくすることができるか
らである。This is because the belt becomes slack between the driving pulley 15 and the driven speed change pulley 17, so it is possible to apply tension to the belt with a low tension, and by increasing the pushing amount of the belt tension applying part, the speed change ratio is increased. This is because it is possible to increase the
又、上記本考案の装置において使用される変速プーリは
公知のものであり、例えば２つに分割された側壁を組合
せ、スプリング圧によりその側壁の間隔を変える構造等
からなっている。The speed change pulley used in the device of the present invention is a known one, and has a structure in which, for example, two divided side walls are assembled and the spacing between the side walls is changed by spring pressure.
以上のように、本考案の多軸伝動装置によればテンショ
ンプーリにベルト押えを固定することによりベルト張力
を弛めて動力伝達を停止する際、ベルト押えがベルト腹
面を押し付け、ベルトが駆動用プーリから浮き上って動
力伝達を確実に遮断し、しかもベルトテンション付与部
が駆動用プーリとベルト走行方向に該駆動用グーりと近
接する従動軸間に付設しであるため低張力でベルトに張
りを付与することが可能である。As described above, according to the multi-shaft transmission device of the present invention, when the belt holder is fixed to the tension pulley to loosen the belt tension and stop power transmission, the belt holder presses against the belly surface of the belt, and the belt is used for driving. It lifts up from the pulley to reliably cut off power transmission, and since the belt tension applying part is attached between the drive pulley and the driven shaft that is close to the drive pulley in the belt running direction, it can be applied to the belt with low tension. It is possible to add tension.
とりわけ、板状体の細長いベルト押えをアイドラープー
リに固定し、かつベルト走行部の入口部にあるベルト押
えの先端を取付ベルトの内側方向に彎曲した構成にして
いるために通常のＶベルトはもちろんのこと、コグ付Ｖ
ベルトの腹面も押し上げていることが可能となるばかり
でなくベルト腹面との当りを防止してベルトの円滑な走
行を可能にし、更には多軸伝動装置であり、ベルトの剛
直性を利用してベルト押えによって持ち上げたベルトを
駆動用プーリから確実に浮上らせてることによってクラ
ッチを確実にし、且つテンションプーリの押込み量を大
きくして変速比を大となし、駆動軸と変速プーリを取付
けた従動軸間の回転比を大きく変化させることが可能で
あり、且つスペースをとることもなく、従来の伝動装置
に比較し、すぐれた性能を発揮する伝動装置である。In particular, the elongated plate-shaped belt holder is fixed to the idler pulley, and the tip of the belt holder at the entrance of the belt running section is curved inward of the attached belt, making it suitable for use with ordinary V-belts as well as other belts. , V with cog
Not only is it possible to push up the belly surface of the belt, but it also prevents contact with the belly surface of the belt, allowing the belt to run smoothly.Furthermore, it is a multi-axis transmission device, which utilizes the rigidity of the belt. The clutch is secured by ensuring that the belt lifted by the belt presser floats above the drive pulley, and the gear ratio is increased by increasing the pushing amount of the tension pulley. This transmission device is capable of greatly changing the rotation ratio between the shafts, does not take up much space, and exhibits superior performance compared to conventional transmission devices.
第１図及び第２図は従来公知の農機具の３軸伝動装置の
略示図、第３図は従来公知の２軸変速機構で、テンショ
ンプーリを引張る方式を示す略示図、第４図は第１図乃
至第３図の伝動機構を改良した３軸伝動装置、第５図は
第４図の伝動装置において動力伝達を停止した場合の略
示図、第６図は本考案に係る多軸伝動装置でベルトに張
力を与えた場合の略示図、第７図は第６図の多軸伝動装
置のベルトテンション付与部の拡大図、第８図は第６図
に示すベルト走行状態からベルト張力を弛めて動力伝達
を停止した場合の略示図である。
１５・・・駆動プーリ、１７・・・変速プーリ、１９・
・・従動プーリ、２０・・・Ｖベルト、２０′・・・ベ
ルト腹面、２１・・・ベルト押え、２２・・・アイドラ
ープーリ、２３・・・ベルトテンション付与部、２４・
・・支持アーム、Ｂ・・・支持アーム支点。1 and 2 are schematic diagrams of a conventionally known three-shaft transmission device for agricultural machinery, FIG. 3 is a schematic diagram of a conventionally known two-shaft transmission mechanism, showing a method of pulling a tension pulley, and FIG. A three-shaft transmission device that is an improved transmission mechanism of FIGS. 1 to 3, FIG. 5 is a schematic diagram of the transmission device shown in FIG. 4 when power transmission is stopped, and FIG. 6 is a multi-shaft transmission device according to the present invention. A schematic diagram of the case where tension is applied to the belt by the transmission device, FIG. 7 is an enlarged view of the belt tension applying part of the multi-shaft transmission device of FIG. 6, and FIG. It is a schematic diagram when tension is relaxed and power transmission is stopped. 15... Drive pulley, 17... Speed change pulley, 19...
... Driven pulley, 20... V-belt, 20'... Belt belly surface, 21... Belt presser, 22... Idler pulley, 23... Belt tension applying section, 24...
...Support arm, B...Support arm fulcrum.
Claims (1)
に動力伝動用ベルトを取付けた多軸伝動装置において、
駆動用ブーりとベルト走行方向に該駆動用プーリと隣接
する変速プーリである従動用プーリ間に板状体の細長い
ベルト押えを取付ベルトの内側に位置するようアイドラ
ープーリーに固定したベルトテンション付与部を付設す
ると共にベルト走行の入口部にあるベルト押えの先端を
取付ベルトの内側方向へ彎曲せしめ、且つベルト押えと
アイドラープーリ間に上記ベルトを介在せしめ、アイド
ラープーリニ固定した支持アームの支点を中心として前
記ベルトテンション付与部を移動可能としたことを特徴
とする動力伝動用ベルトの多軸伝動装置。 ２ アイドラープーリは平プーリであり、該プーリに係
合しているベルトとベルト押えの間隔はベルト腹面とベ
ルト押え間で１．５〜２５朋である実用新案登録請求の
範囲第１項記載の動力伝動用ベルトの多軸伝動装置。 ３ 動力伝動用ベルトがカバー帆布を全面に被覆したラ
ップトベルト、ベルト両側面のみカバー帆布を有しない
ローエツジベルト１．するいはベルト腹部にコグを有す
るコグ付Ｖベルトから選ばれたＶベルトである実用新案
登録請求の範囲第１項又は第２項記載の動力伝動用ベル
トの多軸伝動装置。[Claims for Utility Model Registration] ■ In a multi-shaft transmission device in which a power transmission belt is attached to a driving pulley and at least two or more driven pulleys,
A belt tension applying part fixed to an idler pulley so as to install an elongated plate-shaped belt press between the driving pulley and a driven pulley which is a speed change pulley adjacent to the driving pulley in the belt running direction. At the same time, the tip of the belt presser at the entrance of the belt running is bent inward of the installed belt, and the belt is interposed between the belt presser and the idler pulley, and the belt is centered around the fulcrum of the support arm fixed to the idler pulley. A multi-axis transmission device for a power transmission belt, characterized in that the belt tensioning section is movable. 2. The idler pulley is a flat pulley, and the distance between the belt engaged with the pulley and the belt holder is 1.5 to 25 mm between the belly surface of the belt and the belt holder. Multi-axis transmission device for power transmission belts. 3. Lapto belt in which the power transmission belt is entirely covered with cover canvas, and low edge belt in which only both sides of the belt have no cover canvas.1. Alternatively, the multi-axis transmission device of a power transmission belt according to claim 1 or 2, which is a V-belt selected from cogged V-belts having a cog on the abdomen of the belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979048746U JPS5824662Y2 (en) | 1979-04-11 | 1979-04-11 | Multi-axis transmission device for power transmission belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979048746U JPS5824662Y2 (en) | 1979-04-11 | 1979-04-11 | Multi-axis transmission device for power transmission belt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55147556U JPS55147556U (en) | 1980-10-23 |
| JPS5824662Y2 true JPS5824662Y2 (en) | 1983-05-27 |
Family
ID=28933049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979048746U Expired JPS5824662Y2 (en) | 1979-04-11 | 1979-04-11 | Multi-axis transmission device for power transmission belt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824662Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5345373B2 (en) * | 1974-12-28 | 1978-12-06 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52160072U (en) * | 1976-05-27 | 1977-12-05 | ||
| JPS5345373U (en) * | 1976-09-20 | 1978-04-18 |
-
1979
- 1979-04-11 JP JP1979048746U patent/JPS5824662Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5345373B2 (en) * | 1974-12-28 | 1978-12-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55147556U (en) | 1980-10-23 |
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