JPH0530563Y2 - - Google Patents
Info
- Publication number
- JPH0530563Y2 JPH0530563Y2 JP1986085714U JP8571486U JPH0530563Y2 JP H0530563 Y2 JPH0530563 Y2 JP H0530563Y2 JP 1986085714 U JP1986085714 U JP 1986085714U JP 8571486 U JP8571486 U JP 8571486U JP H0530563 Y2 JPH0530563 Y2 JP H0530563Y2
- Authority
- JP
- Japan
- Prior art keywords
- pin
- top link
- link support
- holes
- eccentric
- 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
Links
- 238000003780 insertion Methods 0.000 claims description 27
- 230000037431 insertion Effects 0.000 claims description 27
- 230000002265 prevention Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Agricultural Machines (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、トラクタ用トツプリンクサポートの
取付構造に係り、三点リンク等に利用される。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a mounting structure for a top link support for a tractor, and is used for a three-point link, etc.
（従来の技術）
第８図で示す如く、トラクタ車体１に三点リン
ク機構２を介して作業機３を昇降自在に連結する
とき、ロワーリンク４の長さよりも短いトツプリ
ンク５を用いた特殊三点リンク機構が採用されて
いる。(Prior Art) As shown in FIG. 8, when a working machine 3 is connected to a tractor body 1 via a three-point link mechanism 2 so as to be able to rise and fall freely, a special method using a top link 5 shorter than the length of a lower link 4 is used. A three-point linkage mechanism is used.
この特殊三点リンク機構は、第９図で示す如く
上中下の取付孔６，７，８を有する一対のブラケ
ツト９を車体１に固着し、前記上下の取付孔６，
８に合致するピン挿通孔１０，１１を有するトツ
プリンクサポート１２が前記ブラケツト９間に嵌
入されて頭付の平行ピン１３，１４を挿入したも
のである。 This special three-point linkage mechanism has a pair of brackets 9 having upper, middle and lower mounting holes 6, 7 and 8 fixed to the vehicle body 1 as shown in FIG.
A top link support 12 having pin insertion holes 10 and 11 matching the size 8 is fitted between the brackets 9, and parallel headed pins 13 and 14 are inserted therein.
この取付構造において、サポート１２のガタ付
きがあることから、第９図に示す如く、上下のく
さびブロツク１５，１６を嵌入れるとともにバネ
１７で互いに弾引するようにしたガタ止め手段が
採用されている。（実開昭59−124403号公報）。 In this mounting structure, since there is some play in the support 12, as shown in FIG. 9, a play prevention means is adopted in which upper and lower wedge blocks 15 and 16 are fitted and elastically pulled together by a spring 17. There is. (Utility Model Publication No. 59-124403).
（考案が解決しようとする問題点）
ところで、従来の技術ではくさびブロツク１
５，１６を用いることから、その取付け取外しが
非常に面倒であるし、しかも、くさび作用で係合
している部分が錆び易く、発錆すると取外しが実
質的に不能となつていた。(Problem that the invention attempts to solve) By the way, in the conventional technology, wedge block 1
5 and 16, it is very troublesome to install and remove them, and moreover, the parts that engage by wedge action are prone to rust, and once rusted, it is virtually impossible to remove them.
そこで、実開昭54−37408号公報で開示のよう
に、偏心カムの回動により、トツプリンクブラケ
ツトのガタ防止を行つたものがある。 Therefore, as disclosed in Japanese Utility Model Application Publication No. 54-37408, there is a system in which the backlash of the top link bracket is prevented by rotating an eccentric cam.
しかし、この従来の偏心カムの回動によるガタ
防止技術は、該偏心カムが上下取付ピンの間では
なく、上取付ピンの上方に配置されていたため、
ガタ止めしたときの作用力は上取付ピンにそのほ
とんどが集中し、該ピンの負担が大きく、耐久性
の点で課題があつた。 However, this conventional rattling prevention technology based on the rotation of the eccentric cam was not arranged between the upper and lower mounting pins, but above the upper mounting pin.
Most of the acting force when the device is stopped from rattling is concentrated on the upper mounting pin, which places a heavy burden on the pin and poses a problem in terms of durability.
そこで本考案は、偏心カム（ピン）の回動でガ
タ止めする技術において、該カムを上下取付ピン
の間に介在させることにより、上下取付ピンの双
方でガタ止め作用力を分配負担して、確実にガタ
止めしつつピンの負担を軽減したことを目的とす
るのである。 Therefore, the present invention uses a technology to prevent rattling by rotating an eccentric cam (pin). By interposing the cam between the upper and lower mounting pins, the rattling prevention force is distributed between both the upper and lower mounting pins. The purpose is to reduce the burden on the pin while reliably preventing looseness.
（問題点を解決するための手段）
本考案が前述目的を達成するために講じる技術
的手段の特徴とする処は、トラクタ車体１に、上
中下の取付孔６，７，８を有する一対のブラケツ
ト９が固着され、前記上下の取付孔６，８と合致
するピン挿通孔１０，１１を有するトツプリンク
サポート１２が前記ブラケツト９間に嵌入されて
上下で対応する孔６，８，１０，１１にピン１
３，１４を挿入してブラケツト９とトツプリンク
サポート１２とを取付けたものにおいて、
トツプリンクサポート１２には上下挿通孔１
０，１１とは別の中挿通孔２３がブラケツト９の
中取付孔７に対して偏心２６して形成されてお
り、両端に大径平行軸部２９を、中間部に小径平
行軸部３０を有し、該両軸部２９，３０の軸心を
偏心３１した偏心ピン２８を前記中挿通孔２３と
中取付孔７に貫挿して該偏心ピン２８を軸心廻り
に回動して上・下ピン１３，１４のそれぞれにガ
タ止め力を分配負担して取付けた点にある。(Means for Solving the Problems) The technical means taken by the present invention to achieve the above-mentioned object are characterized by a pair of mounting holes 6, 7, and 8 provided in the tractor body 1. A top link support 12 is fitted between the brackets 9 and has pin insertion holes 10, 11 that match the upper and lower mounting holes 6, 8, and the upper and lower mounting holes 6, 8, 10, and pin 1 to 11
3 and 14 are inserted to attach the bracket 9 and the top link support 12, the top link support 12 has the upper and lower insertion holes 1.
An intermediate insertion hole 23 separate from holes 0 and 11 is formed eccentrically 26 with respect to the intermediate mounting hole 7 of the bracket 9, and has a large-diameter parallel shaft portion 29 at both ends and a small-diameter parallel shaft portion 30 at the middle portion. The eccentric pin 28 whose axes of both shaft parts 29 and 30 are eccentric 31 is inserted into the intermediate insertion hole 23 and the intermediate mounting hole 7, and the eccentric pin 28 is rotated about the axis to move up and down. The main feature is that the lower pins 13 and 14 are installed by distributing the rattling force to each of them.
（作用）
一対のブラケツト９間に、トツプリンクサポー
ト１２を嵌入して、平行ピン１３，１４を挿入す
る前に、中取付孔７と中ピン挿通孔２３を合致さ
せて両端に大径平行軸部２９を、中間部に小径平
行軸部３０を有し、該両軸部２９，３０の軸心を
偏心３１した偏心ピン２８を挿入する。(Function) Before inserting the top link support 12 between the pair of brackets 9 and inserting the parallel pins 13 and 14, align the middle mounting hole 7 and the middle pin insertion hole 23, and attach the large diameter parallel shaft to both ends. An eccentric pin 28 is inserted into the portion 29, which has a small-diameter parallel shaft portion 30 in the middle portion, and the axes of both shaft portions 29, 30 are eccentric.
次いで、偏心ピン２８の偏心量３１によつて上
下の各孔６，８，１０，１１を相対応させてから
平行ピン１３，１４を挿入する。 Next, the upper and lower holes 6, 8, 10, 11 are made to correspond to each other by the eccentricity 31 of the eccentric pin 28, and then the parallel pins 13, 14 are inserted.
最後に、偏心ピン２８を軸回りに回動すること
で偏心量２６，３１によるガタ止め力を上下ピン
１３，１４に負担させてガタ止めがなされる。 Finally, by rotating the eccentric pin 28 around the axis, the upper and lower pins 13 and 14 bear the force for preventing looseness due to the eccentric amounts 26 and 31, thereby preventing looseness.
取外しは前述とは逆手順でなされる。 Removal is done in the reverse order as described above.
（実施例）
以下、第１図〜第７図を参照して本考案の実施
例を詳述するが、先に第８，９図を参照して説明
した事項と共通する部分は、共通符号で示してい
る。(Embodiment) Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 7. Parts that are the same as those previously explained with reference to FIGS. It is shown in
第１図〜第７図において、一対のブラケツト９
は基板１８に溶着され、基板１８がボルト１９で
トラクタ車体１の後面に固着され、各ブラケツト
９に高さ方向に間隔を有してそれぞれ相対して開
設されている上中下の各取付孔６，７，８はその
孔心が第１図の鉛直平面線２０−２０上にある。 In FIGS. 1 to 7, a pair of brackets 9
are welded to a base plate 18, and the base plate 18 is fixed to the rear surface of the tractor body 1 with bolts 19, and upper, middle, and lower mounting holes are provided in each bracket 9 facing each other at intervals in the height direction. 6, 7, and 8 have their hole centers on the vertical plane line 20-20 in FIG.
この各取付孔６，７，８はトツプリンクサポー
ト１２を用いないときは、三点リンク機構におけ
るトツプリンク５の一端をピン１３で選択的に取
着するものとされている。 When the top link support 12 is not used, one end of the top link 5 in the three-point link mechanism is selectively attached to each of the mounting holes 6, 7, and 8 using a pin 13.
トツプリンクサポート１２は平面視においてそ
の基部が幅狭でテーパー部を介して平行部を有す
る板材からなり、板材間には補強プレート２１と
補強兼クサリ等の引掛け板２２が溶着されてお
り、基部には上中下のピン挿通孔１０，１１，２
３が形成されている。 The top link support 12 is made of a plate material whose base is narrow in plan view and has a parallel part through a tapered part, and a reinforcing plate 21 and a hook plate 22 such as a reinforcing chain are welded between the plates. The base has upper, middle and lower pin insertion holes 10, 11, 2.
3 is formed.
上ピン挿通孔１０と下ピン挿通孔１１は実質的
に筒体２４，２５で構成され、筒体２４，２５を
板材間の基部に互いに平行として溶着され、筒体
２４，２５の両端面が一対のブラケツト９の各内
面に摺接するようにされている。 The upper pin insertion hole 10 and the lower pin insertion hole 11 are substantially composed of cylindrical bodies 24 and 25, and the cylindrical bodies 24 and 25 are welded to the base between the plate materials parallel to each other, and both end surfaces of the cylindrical bodies 24 and 25 are It is adapted to come into sliding contact with each inner surface of the pair of brackets 9.
上下ピン挿通孔１０，１１は、ブラケツト９の
上下取付孔６，８とそれぞれ孔心が合致されてお
り、上下ピン挿通孔１０，１１間の中ピン挿通孔
２３は鉛直平面線２０−２０より前後にわずかに
偏心されており、符号２６が偏心量である。 The upper and lower pin insertion holes 10 and 11 are aligned with the upper and lower mounting holes 6 and 8 of the bracket 9, respectively, and the center pin insertion hole 23 between the upper and lower pin insertion holes 10 and 11 is aligned with the vertical plane line 20-20. It is slightly eccentric in the front and rear, and the reference numeral 26 is the amount of eccentricity.
従つて、中ピン挿通孔２３の孔心は中取付孔７
の孔心に対して偏心されている。 Therefore, the hole center of the middle pin insertion hole 23 is aligned with the middle mounting hole 7.
is eccentric with respect to the hole center.
なお、中ピン挿通孔２３にはその各内面に筒カ
ラー２７を有している。 The inner pin insertion hole 23 has a cylindrical collar 27 on each inner surface thereof.
２８は偏心ピンであり、第５図、第６図、第７
図で示す如く先端と後端とに大径平行軸部２９を
有し、その中間部に小径平行軸部３０とを有し、
第７図で示す如く符号３１だけわずかに偏心され
ている。 28 is an eccentric pin;
As shown in the figure, it has a large diameter parallel shaft part 29 at the tip and rear end, and a small diameter parallel shaft part 30 in the middle part,
As shown in FIG. 7, it is slightly eccentric by 31.
ここで、第４図にて示す如く大径平行軸部２９
のそれぞれはブラケツト９の中取付孔７間に挿通
されて嵌入され、小径平行軸部３０はトツプリン
クサポート１２の中ピン挿通孔２３を貫挿してい
る。 Here, as shown in FIG. 4, the large diameter parallel shaft portion 29
are inserted and fitted between the middle mounting holes 7 of the bracket 9, and the small diameter parallel shaft portion 30 is inserted through the middle pin insertion hole 23 of the top link support 12.
従つて、第５図で示す如く一対のブラケツト９
間にトツプリンクサポート１２の基部を嵌入さ
せ、中ピン挿通孔２３と中取付孔７に亘つて偏心
ピン２８を挿入させ、しかる後に、ピン偏心量３
１によつてブラケツト９の上下取付孔６，８とト
ツプリンクサポート１２の上下ピン挿通孔１０，
１１との孔心を合致させ（トツプリンクサポート
１２をピン偏心量３１だけ動かすことにより行な
われる）、第３図に示す如く頭付の平行ピン１３，
１４を挿入し、抜止めピン３２により抜止めされ
ている。 Therefore, as shown in FIG.
The base of the top link support 12 is inserted between them, and the eccentric pin 28 is inserted across the middle pin insertion hole 23 and the middle mounting hole 7, and then the pin eccentricity 3 is inserted.
1, the upper and lower mounting holes 6, 8 of the bracket 9 and the upper and lower pin insertion holes 10 of the top link support 12,
11 (this is done by moving the top link support 12 by the amount of pin eccentricity 31), and as shown in FIG.
14 is inserted and is prevented from coming out by a retaining pin 32.
そして、偏心ピン２８をその軸心回りに回動す
ることによつて、偏心量２６，３１によつてガタ
止めされるとともに、偏心ピン２８の抜止めがな
される。 By rotating the eccentric pin 28 about its axis, the eccentric pin 28 is prevented from rattling by the eccentric amounts 26 and 31, and the eccentric pin 28 is prevented from coming off.
偏心ピン２８をその軸心回りに回動するため
に、ピン端面にはレバー３３が固着されており、
該レバー３３の先端にはウエイト兼用のグリツプ
３４が溶着されている。 In order to rotate the eccentric pin 28 around its axis, a lever 33 is fixed to the end face of the pin.
A grip 34 which also serves as a weight is welded to the tip of the lever 33.
従つて、第１図、第５図に示す如くレバー３３
を上向として偏心ピン２８を前述したように挿入
し、レバー３３を矢印３５方向に回動するのであ
り、第１図のときに、レバー３３が斜め方向上方
に傾斜し、グリツプ３４のウエイト等によつて戻
りが拘束されている。 Therefore, as shown in FIGS. 1 and 5, the lever 33
The eccentric pin 28 is inserted as described above with the lever facing upward, and the lever 33 is rotated in the direction of the arrow 35. In the case shown in FIG. Return is restricted by .
なお、レバー３３は第２図で示す如くトツプリ
ンクサポート１２の平行部に沿うよう折曲げられ
ている。 The lever 33 is bent along the parallel portion of the top link support 12, as shown in FIG.
その他、３６はトツプリンク５の取付ピンを示
している。 In addition, 36 indicates a mounting pin of the top link 5.
（考案の効果）
本考案はトラクタ車体１に、上中下の取付孔
６，７，８を有する一対のブラケツト９が固着さ
れ、前記上下の取付孔６，８と合致するピン挿通
孔１０，１１を有するトツプリンクサポート１２
が前記ブラケツト９間に嵌入されて上下で対応す
る孔６，８，１０，１１にピン１３，１４を挿入
してブラケツト９とトツプリンクサポート１２と
を取付けたものにおいて、
トツプリンクサポート１２には上下挿通孔１
０，１１とは別の中挿通孔２３がブラケツト９の
中取付孔７に対して偏心２６して形成されてお
り、両端に大径平行軸部２９を、中間部に小径平
行軸部３０を有し、該両軸部２９，３０の軸心を
偏心３１した偏心ピン２８を前記中挿通孔２３と
中取付孔７に貫挿して該偏心ピン２８を軸心廻り
に回動して上・下ピン１３，１４のそれぞれにガ
タ止め力を分配負担して取付けたことを特徴とす
るので、次の利点がある。(Effects of the invention) In the present invention, a pair of brackets 9 having upper, middle, and lower mounting holes 6, 7, and 8 are fixed to the tractor body 1, and a pin insertion hole 10 that matches the upper and lower mounting holes 6, 8 is fixed to the tractor body 1. Top link support 12 with 11
is inserted between the brackets 9 and the pins 13 and 14 are inserted into the upper and lower corresponding holes 6, 8, 10, 11 to attach the bracket 9 and the top link support 12, and the top link support 12 has Upper and lower insertion holes 1
An intermediate insertion hole 23 separate from holes 0 and 11 is formed eccentrically 26 with respect to the intermediate mounting hole 7 of the bracket 9, and has a large-diameter parallel shaft portion 29 at both ends and a small-diameter parallel shaft portion 30 at the middle portion. The eccentric pin 28 whose axes of both shaft parts 29 and 30 are eccentric 31 is inserted into the intermediate insertion hole 23 and the intermediate mounting hole 7, and the eccentric pin 28 is rotated about the axis to move up and down. Since the lower pins 13 and 14 are attached by distributing the rattling force to each of them, there are the following advantages.
上下の平行ピン１３，１４間に、偏心ピン２８
を挿通して偏心ピン２８の軸回りの回動によるガ
タ止め力を上下ピン１３，１４で負担すること
で、確実にガタ止めできるばかりか上下ピン１
３，１４の負担も分配されて耐久性が向上し、偏
心ピン２８の抜けも防止できる。 An eccentric pin 28 is placed between the upper and lower parallel pins 13 and 14.
By inserting the eccentric pin 28 into the upper and lower pins 13 and 14, the upper and lower pins 13 and 14 bear the force to prevent rattling, which is caused by the rotation of the eccentric pin 28 around the axis.
3 and 14 are also distributed, durability is improved, and the eccentric pin 28 can be prevented from coming off.
また、構造的にはトツプリンクサポート１２に
中ピン挿通孔２３を形成して、偏心ピン２８を挿
脱することで足り、非常に簡単であるし、トツプ
リンクサポート１２の着脱も簡単かつ確実にでき
る。 In addition, structurally, it is sufficient to form the middle pin insertion hole 23 in the top link support 12 and insert and remove the eccentric pin 28, which is very simple, and the top link support 12 can be attached and detached easily and reliably. can.
図面は本考案と従来例を示し、第１図は第２図
Ａ−Ａ線における本案実施例の側面断面図、第２
図は同平面図、第３図は第１図Ｂ−Ｂ線断面図、
第４図は第１図Ｃ−Ｃ線断面図、第５図は本案の
取付要領を示す斜視図、第６図は偏心ピンの正面
図、第７図は同側面図、第８図は本案及び従来例
を用いたトラクタにロータリを装着した側面図、
第９図は従来例の側面図である。
１……トラクタ車体、６，７，８……取付孔、
９……ブラケツト、１０，１１，２３……ピン挿
通孔、１２……トツプリンクサポート、１３，１
４……ピン、２８……偏心ピン、２６，３１……
偏心量。
The drawings show the present invention and a conventional example, and FIG.
The figure is the same plan view, Figure 3 is a sectional view taken along line B-B in Figure 1,
Figure 4 is a sectional view taken along the line C-C in Figure 1, Figure 5 is a perspective view showing the installation procedure of the present invention, Figure 6 is a front view of the eccentric pin, Figure 7 is a side view of the same, and Figure 8 is the present invention. and a side view of a conventional tractor equipped with a rotary;
FIG. 9 is a side view of the conventional example. 1... Tractor body, 6, 7, 8... Mounting holes,
9...Bracket, 10,11,23...Pin insertion hole, 12...Top link support, 13,1
4... Pin, 28... Eccentric pin, 26, 31...
Eccentricity.
Claims (1)
を有する一対のブラケツト９が固着され、前記上
下の取付孔６，８と合致するピン挿通孔１０，１
１を有するトツプリンクサポート１２が前記ブラ
ケツト９間に嵌入されて上下で対応する孔６，
８，１０，１１にピン１３，１４を挿入してブラ
ケツト９とトツプリンクサポート１２とを取付け
たものにおいて、 トツプリンクサポート１２には上下挿通孔１
０，１１とは別の中挿通孔２３がブラケツト９の
中取付孔７に対して偏心２６して形成されてお
り、両端に大径平行軸部２９を、中間部に小径平
行軸部３０を有し、該両軸部２９，３０の軸心を
偏心３１した偏心ピン２８を前記中挿通孔２３と
中取付孔７に貫挿して該偏心ピン２８を軸心廻り
に回動して上・下ピン１３，１４のそれぞれにガ
タ止め力を分配負担して取付けたことを特徴とす
るトラクタ用トツプリンクサポートの取付構造。[Scope of claim for utility model registration] Upper, middle and lower mounting holes 6, 7, 8 on the tractor body 1
A pair of brackets 9 are fixed thereto, and pin insertion holes 10, 1 that match the upper and lower mounting holes 6, 8
A top link support 12 having a top link support 12 is fitted between the brackets 9 and has upper and lower corresponding holes 6,
The bracket 9 and the top link support 12 are attached by inserting the pins 13 and 14 into the pins 8, 10, and 11, and the top link support 12 has the upper and lower insertion holes 1.
An intermediate insertion hole 23 separate from holes 0 and 11 is formed eccentrically 26 with respect to the intermediate mounting hole 7 of the bracket 9, and has a large-diameter parallel shaft portion 29 at both ends and a small-diameter parallel shaft portion 30 at the middle portion. The eccentric pin 28 whose axes of both shaft parts 29 and 30 are eccentric 31 is inserted into the intermediate insertion hole 23 and the intermediate mounting hole 7, and the eccentric pin 28 is rotated about the axis to move up and down. This mounting structure of a top link support for a tractor is characterized in that the lower pins 13 and 14 are mounted by distributing the rattling force to each of the lower pins 13 and 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986085714U JPH0530563Y2 (en) | 1986-06-05 | 1986-06-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986085714U JPH0530563Y2 (en) | 1986-06-05 | 1986-06-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62196609U JPS62196609U (en) | 1987-12-14 |
| JPH0530563Y2 true JPH0530563Y2 (en) | 1993-08-05 |
Family
ID=30941367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986085714U Expired - Lifetime JPH0530563Y2 (en) | 1986-06-05 | 1986-06-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0530563Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0755845Y2 (en) * | 1988-05-10 | 1995-12-25 | 株式会社クボタ | Coupling device for tractor and work equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437408B2 (en) * | 1971-12-28 | 1979-11-15 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437408U (en) * | 1977-08-17 | 1979-03-12 |
-
1986
- 1986-06-05 JP JP1986085714U patent/JPH0530563Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5437408B2 (en) * | 1971-12-28 | 1979-11-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62196609U (en) | 1987-12-14 |
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