JPS6139281Y2 - - Google Patents
Info
- Publication number
- JPS6139281Y2 JPS6139281Y2 JP17860880U JP17860880U JPS6139281Y2 JP S6139281 Y2 JPS6139281 Y2 JP S6139281Y2 JP 17860880 U JP17860880 U JP 17860880U JP 17860880 U JP17860880 U JP 17860880U JP S6139281 Y2 JPS6139281 Y2 JP S6139281Y2
- Authority
- JP
- Japan
- Prior art keywords
- feeler
- support member
- tightening screw
- pieces
- screw
- 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
- 239000000945 filler Substances 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 18
- 230000033001 locomotion Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
【考案の詳細な説明】
本考案は微小変位検出器のフイーラ機構に関す
る。[Detailed Description of the Invention] The present invention relates to a feeler mechanism for a minute displacement detector.
微小変位検出器は、機械的な変位入力に応じた
電気信号を形成して計器に与え表示を行うように
構成されたもので、その機械的入力の受入部にフ
イーラが設けられる。このフイーラはある軸を中
心にした回転運動を行うように構成されていれ
ば、機械的入力を受入れることができる。しか
し、フイーラにはこの1軸を中心とする動作のみ
が与えられる許りでなく、この軸が機械的入力を
受入れるために行う回転運動では受容し切れない
動作も入力として与えられ、これによりフイーラ
またはこれに関連する要素を破壊することがあ
る。 The minute displacement detector is configured to form an electrical signal in response to a mechanical displacement input and provide it to a meter for display, and is provided with a feeler in a receiving section for the mechanical input. The feeler can accept mechanical input if it is configured for rotational movement about an axis. However, the feeler is not allowed to be given only motion centered on this one axis, but also motions that cannot be accepted by the rotational motion that this axis performs to accept mechanical input are given as input, and this causes the feeler to or may destroy related elements.
そこで、従来のこの種フイーラは第1図a,b
に示すように不都合な機械的入力を吸収し得るよ
うな構造が採用されている。まず同図aはフイー
ラ1の基端部1bを、回転軸2を中心にして回転
し得る支持部材3に取付けてなるもので、フイー
ラ1に対する図の面と平行な方向の機械的入力は
支持部材3に伝達し、図の面と直角方向の機械的
入力は伝達しない構造となつている。 Therefore, conventional fillers of this type are shown in Figure 1 a and b.
As shown in Figure 2, a structure that can absorb undesirable mechanical input is adopted. First, Figure a shows a feeler 1 whose proximal end 1b is attached to a support member 3 that can rotate around a rotating shaft 2, and mechanical input to the feeler 1 in a direction parallel to the plane of the figure is supported. The structure is such that the mechanical input is transmitted to the member 3, but the mechanical input in the direction perpendicular to the plane of the figure is not transmitted.
つまり、フイーラ1の基端部1bは、支持部材
3のコ字形部3a内側面にピン3bおよび締付ね
じ3cにより摩擦接触しており、この摩擦力を超
える機械的入力がフイーラ1に与えられても支持
部材3に伝達しないようにしている。ピン3bは
軸2とその軸方向が直交するような関係にあり、
軸2を中心とした機械的入力がフイーラ1に与え
られたときき支持部材3に伝達するがピン3bを
中心とした機械的入力がフイーラ1に与えられて
も支持部材3には伝達しない。この結果、軸2を
中心とした測定入力が与えられると支持部材3の
尾端に設けた検出要素3dが入力に対応して動き
測定信号の形成が行われるが、ピン3bを中心と
して非測定入力に応じた信号形成は行われない。
検出要素3dは、例えば可変キヤパシタを構成す
る2つの電極のうちの可動電極として用いられ
る。 That is, the base end portion 1b of the feeler 1 is in frictional contact with the inner surface of the U-shaped portion 3a of the support member 3 by the pin 3b and the tightening screw 3c, and no mechanical input exceeding this frictional force is applied to the feeler 1. Even if the signal is not transmitted to the support member 3, the signal is not transmitted to the support member 3. The pin 3b is in a relationship such that its axial direction is orthogonal to the shaft 2,
When a mechanical input centered on the shaft 2 is applied to the feeler 1, it is transmitted to the support member 3, but even if a mechanical input centered on the pin 3b is applied to the feeler 1, it is not transmitted to the support member 3. As a result, when a measurement input centered on the axis 2 is given, the detection element 3d provided at the tail end of the support member 3 moves in response to the input and forms a measurement signal, but no measurement is made centered on the pin 3b. No signal formation is performed depending on the input.
The detection element 3d is used, for example, as a movable electrode of two electrodes that constitute a variable capacitor.
また同図bは、フイーラ1の基端部1bを円筒
状に構成し、軸2を中心として回動する支持部材
3に軸支した軸3bに遊嵌し、締付ねじ3cによ
り円筒状基端部1bと軸3bとを摩擦接触させて
いる。この場合も、図の面と一致する方向の測定
入力がフイーラ1に与えられたときは支持部材3
を介して検出要素3dに伝達し、図の面と直角方
向の非測定入力は伝達しない。 In addition, Fig. b shows that the base end 1b of the feeler 1 is configured in a cylindrical shape, is loosely fitted onto a shaft 3b supported by a support member 3 that rotates around a shaft 2, and is attached to a cylindrical base by a tightening screw 3c. The end portion 1b and the shaft 3b are brought into frictional contact. In this case as well, when a measurement input is given to the feeler 1 in a direction that coincides with the plane shown in the figure, the support member 3
to the detection element 3d, and non-measurement inputs in the direction perpendicular to the plane of the figure are not transmitted.
しかしながら、これらの何れの場合とも、測定
入力と同方向に与えられる機械的入力に対して逃
げを図る手段は設けられておらず、過大な測定入
力が与えられるとフイーラ1、支持部材3、検出
要素3dの何れかを破損することとなる。この逃
げを与えるためには同図aまたはb等の機構をも
う1組組込む必要があり、機構の複雑化、大型化
を余儀なくされる。 However, in any of these cases, there is no means for escaping mechanical input applied in the same direction as the measurement input, and if an excessive measurement input is applied, the feeler 1, the support member 3, and the detection Any of the elements 3d will be damaged. In order to provide this relief, it is necessary to incorporate another set of mechanisms such as those shown in FIG.
本考案は上述の点に鑑みてなされたもので、測
定入力と同方向およびその直交方向の機械的入力
に対する逃げの手段を単一の手段によつて形成
し、部品数および加工工数を減少してなる微小変
位検出器のフイーラ機構を構成したものである。 The present invention has been developed in view of the above points, and uses a single means to form escape means for mechanical input in the same direction as the measurement input and in a direction orthogonal thereto, thereby reducing the number of parts and processing steps. This is a feeler mechanism for a minute displacement detector.
以下第2図乃至第5図を参照して本考案の一実
施例を説明する。 An embodiment of the present invention will be described below with reference to FIGS. 2 to 5.
第2図は本考案に係るフイーラ機構の全体構成
を示したもので、この場合、フイーラ1と支持部
材3との連結は、金属等の構成された2片4a,
4bおよび締付ねじ5からなる介挿部材によつて
行われる。 FIG. 2 shows the overall structure of the feeler mechanism according to the present invention. In this case, the feeler 1 and the support member 3 are connected by two pieces 4a made of metal or the like.
4b and a tightening screw 5.
この介挿部材は、フイーラ1に対して測定入力
が与えられたときにその運動を支持部材3に伝達
し、測定入力と直交方向の非測定入力は伝達しな
いという点では従来のフイーラ機構を構成する要
素と異ならないが、測定入力が過大であるときに
はその過大分を逃がすことにより機構要素の破損
を防止し得る点で従来のフイーラ機構のそれとは
異なる。 This interposed member constitutes a conventional feeler mechanism in that when a measurement input is applied to the feeler 1, the motion is transmitted to the support member 3, and a non-measurement input in a direction orthogonal to the measurement input is not transmitted. However, it differs from the conventional feeler mechanism in that when the measurement input is excessive, damage to the mechanism element can be prevented by releasing the excessive amount.
第3図a,b,cは本考案に係るフイーラ機構
の構造説明図であり、同図aは第2図における下
方から介挿部材4a,4bを見た底断面図、同図
bは同じく側面図、同図cは同図aにおけるX−
X断面図である。 Figures 3a, b, and c are structural explanatory diagrams of the feeler mechanism according to the present invention; figure a is a bottom sectional view of the insert members 4a and 4b seen from below in Figure 2; Side view, figure c is X- in figure a
It is an X sectional view.
本考案に係るフイーラ機構では、フイーラ1と
支持部材3とを、部材片4a,4bおよび締付ね
じ5から介挿部材により連結している。そして部
材片4a,4bは相互に腹合せに組合わされ、一
端側でフイーラ1を挾み込み、他端側で軸2を挾
んで締付ねじ5で相互に固定される。 In the feeler mechanism according to the present invention, the feeler 1 and the support member 3 are connected by an interposed member from the member pieces 4a, 4b and the tightening screw 5. The member pieces 4a and 4b are assembled face-to-face with each other, and are fixed to each other with a tightening screw 5, with the filler 1 sandwiched between one end side and the shaft 2 held between the other end sides.
ここで締付ねじ5の役割は両部材片4a,4b
の相互固定、その結果としてのフイーラ1および
軸2の締付けに加えてもう1つの機能を持つてい
る。同図b,cはこの機能を示したもので、部材
片4aの締付ねじ挿入用穴は面取りがしてあり、
一方締付ねじ5は皿ビス状のものを用いているか
ら、締付ねじ5をねじ込むと部材片4aには、締
付ねじ5の頭部外周に設けられている円錐状面に
より部材片4bに押付けられる力と部材片4aを
押し拡げる力とが生じる。部材片4aは、その長
手方向に沿つて締付ねじ挿入穴を一部に含んだ溝
を有し、締付ねじの挿入方向から見たときの形状
がU字状をなしているから、締付ねじ5を締込め
ばこのU字状の開放端同士が互いに開くようにな
る。各開放端の外側面は支持部材3に接してお
り、締付ねじ5を締込んだことにより開放端同志
が開くような力が働くと、この力は開放端外側面
を支持部材3に圧接する力として作用する。つま
り、軸2を中心とする介挿部材の回転運動、換言
すれば測定入力と同方向の入力に対する介挿部材
およびフイーラ1の回動を拘束するように作用す
る。そして、この拘束作用力を超える測定入力が
与えられると、支持部材3と部材片4bとの間に
フイーラ1の動作を支持部材3に伝達しなくな
る。この伝達を行う限界は、締付ねじ5の締込み
度合によつて調節できる。なお、部材4a,4b
を構成する材料としては金属をはじめとする弾性
変形するものを用いることになるが、これらの部
材の摩擦による接触力の低下を上記部材4a,4
bの弾性復元により補償することができる。 Here, the role of the tightening screw 5 is to
In addition to the mutual fixation of the feeler 1 and the resulting tightening of the shaft 2, it has another function. Figures b and c show this function, and the hole for inserting the tightening screw in the member piece 4a is chamfered.
On the other hand, since the tightening screw 5 uses a countersunk screw type, when the tightening screw 5 is screwed in, the conical surface provided on the outer periphery of the head of the tightening screw 5 causes the member piece 4b to A force pressing the member pieces 4a and a force pushing the member pieces 4a apart are generated. The member piece 4a has a groove partially including a tightening screw insertion hole along its longitudinal direction, and has a U-shape when viewed from the tightening screw insertion direction. When the set screw 5 is tightened, the open ends of the U-shape will be opened to each other. The outer surface of each open end is in contact with the support member 3, and when a force is applied to open the open ends by tightening the tightening screw 5, this force presses the outer surface of the open end against the support member 3. Acts as a force to In other words, it acts to restrict the rotational movement of the insertion member about the shaft 2, in other words, the rotation of the insertion member and the filler 1 in response to an input in the same direction as the measurement input. When a measurement input exceeding this restraining force is applied, the motion of the feeler 1 is no longer transmitted to the support member 3 between the support member 3 and the member piece 4b. The limit of this transmission can be adjusted by the degree of tightening of the tightening screw 5. In addition, members 4a and 4b
Materials that can be elastically deformed, such as metal, are used as the material for forming the members 4a and 4.
This can be compensated for by the elastic restoration of b.
第4図a,b,cおよび第5図a,b,cはそ
れぞれ部材片4a,4bの形状を示す3面図であ
る。まず部材片4aはその平面および底面形状が
中央にスリツトを有するほぼU字状をなしてお
り、このU字中央部に締付ねじ挿入穴41が設け
られている。この挿入穴41は皿ねじ適合するよ
うに面取りがしてある。そして部材片4aの一端
42側には軸2を挾持するための、長手方向に直
角方向の溝44が設けられている。そして、その
外周面は軸2を中心にした部材片4aの回動に適
合するように円形面またはV形面が形成されてい
る。また部材片4aの他端43側にはフイーラ1
を挾み込むための段部が設けられ、且つその端面
はフイーラ1に測定入力と直角方向の入力が与え
られたときにフイーラ1が回転し易いように略々
円形に構成されている。なお、段部のもう1つの
部材片4bと対向する面には破線図示のような突
起を設けて加工組立の便宜を図つてもよい。 FIGS. 4a, b, and c and FIGS. 5a, b, and c are trihedral views showing the shapes of the member pieces 4a and 4b, respectively. First, the member piece 4a has a substantially U-shape in plan and bottom shape with a slit in the center, and a tightening screw insertion hole 41 is provided in the center of the U-shape. This insertion hole 41 is chamfered to accommodate a countersunk screw. A groove 44 is provided at one end 42 of the member piece 4a in a direction perpendicular to the longitudinal direction for holding the shaft 2 therebetween. The outer circumferential surface thereof is formed into a circular surface or a V-shaped surface to accommodate the rotation of the member piece 4a about the shaft 2. Also, a feeler 1 is provided on the other end 43 side of the member piece 4a.
A stepped portion is provided for holding the filler 1 in between, and the end face thereof is formed into a substantially circular shape so that the feeler 1 can easily rotate when an input in a direction perpendicular to the measurement input is applied to the feeler 1. Incidentally, a protrusion as shown by a broken line may be provided on the surface of the stepped portion facing the other member piece 4b to facilitate processing and assembly.
次に部材片4bは、全体形状としては部材片4
aと同様であるが、長手方向のスリツトがない。
そして、中央部に締付ねじ用の穴45が設けら
れ、また一端の部材片4aの軸2用溝44と対応
する位置に、同様の溝44が設けられ、さらに他
端にはフイーラ1を挾み込むための球面状または
台形状の突起47が設けられている。 Next, the member piece 4b has the overall shape of the member piece 4b.
Similar to a, but without the longitudinal slit.
A hole 45 for a tightening screw is provided in the center, a similar groove 44 is provided at a position corresponding to the groove 44 for the shaft 2 in the member piece 4a at one end, and a feeler 1 is provided at the other end. A spherical or trapezoidal protrusion 47 is provided for insertion.
これらの部材片4a,4bを、フイーラの基端
部1bおよび軸2を挾んだ状態に配し締付ねじ5
を締込むことにより第2図および第3図の状態が
得られる。部材片4a,4bと軸2との関係は特
に説明を要しない構造であるが、部材片4a,4
bとフイーラ1との関係は説明を加えておく。フ
イーラ1の基端1bには、部材片4bの球面状突
起47と円形接触部が形成されるような受面が形
成され、この受面の背部は部材片4aの段部と接
触するために平面状となつている。このフイーラ
の基端部1bを、部材片4a,4bの対向面にお
ける部材片4bの突起47に受面が当接し、部材
片4aの段部に平面部が当接するように挾み込
み、また軸溝44に軸2を挾み込んで締付ねじ5
を締込めば、フイーラ1と支持部材3との固定を
行うことができ、しかも締付ねじ5の締込み度合
を加減することにより、フイーラ1と介挿部材、
介挿部材と支持部材3の各間の接触摩擦力を増減
することができる。 These member pieces 4a, 4b are placed in a state where they sandwich the base end 1b of the feeler and the shaft 2, and the tightening screw 5 is tightened.
By tightening, the states shown in FIGS. 2 and 3 are obtained. Although the relationship between the member pieces 4a, 4b and the shaft 2 does not require any particular explanation, the member pieces 4a, 4
The relationship between b and filler 1 will be explained below. The base end 1b of the feeler 1 is formed with a receiving surface that forms a circular contact portion with the spherical protrusion 47 of the member piece 4b, and the back of this receiving surface is formed in order to make contact with the stepped portion of the member piece 4a. It is flat. The base end portion 1b of the feeler is inserted between the opposing surfaces of the member pieces 4a and 4b so that the receiving surface is in contact with the protrusion 47 of the member piece 4b and the flat part is in contact with the stepped portion of the member piece 4a. Insert the shaft 2 into the shaft groove 44 and tighten the tightening screw 5.
By tightening, the feeler 1 and the support member 3 can be fixed, and by adjusting the degree of tightening of the tightening screw 5, the feeler 1 and the insert member,
The contact friction force between each of the insertion member and the support member 3 can be increased or decreased.
上記実施例では、フイーラ1と支持部材3とを
連結するための、2つの部材片からなる介挿部材
において、一方の部材片に設けた球面状突起と他
方の部材片の平面部とによりフイーラ受け構造と
し、フイーラ基端は球面状突起と係合する凹錐面
を一面に、その背面を平面にした構造としている
が、この構造は種々変形し得る。例えばフイーラ
側を突起とし部材片側を凹部としてもよい。 In the above embodiment, in the insertion member made of two member pieces for connecting the feeler 1 and the support member 3, the feeler is The base end of the filler has a receiving structure, and the base end of the filler has a concave conical surface that engages with the spherical protrusion on one side and a flat back surface, but this structure can be modified in various ways. For example, the filler side may be a projection and one side of the member may be a recess.
本考案は上述のように、フイーラと支持部材と
を測定入力と同方向およびその直交方向の機械的
入力に対する逃げの手段を設けたため、測定入力
の方向と直交方向の非測定入力が与えられた場合
は勿論、測定入力と同方向であつても過大な入力
が与えられた場合にそれら入力をそのまま取入れ
てフイーラ等を破損するような事故を防止するこ
とができる。しかも上記逃げ手段は只1つの締付
ねじの締込み度合を調節することにより、どの程
度の大きさの作用力が与えられたときに逃げ作用
を行うかを簡単に調節することができ、調整操作
が簡便である。すなわち上記締付ねじは皿ビス状
であり、締込みにより第3図cに示したようなね
じの軸方向およびその直角方向に同時に作用力を
与えることができ、単にねじを回転操作すること
でフイーラの2軸方向の摩擦による逃げ動作を加
減することができる。 As described above, in the present invention, the feeler and the supporting member are provided with a means of escape from mechanical input in the same direction as the measurement input and in a direction perpendicular to the measurement input. Of course, if an excessive input is given even if it is in the same direction as the measurement input, it is possible to prevent an accident such as damage to the filler etc. by taking in the input as it is. Moreover, by adjusting the degree of tightening of just one tightening screw, the escape means can easily adjust how much acting force is applied to perform the escape action. Easy to operate. In other words, the above-mentioned tightening screw has a countersunk screw shape, and by tightening it, it is possible to simultaneously apply an acting force in the axial direction of the screw and in the direction perpendicular to it, as shown in Fig. 3c, and by simply rotating the screw. It is possible to adjust the escape movement due to friction in the two axial directions of the filler.
第1図a,bは従来の微小変位検出器用フイー
ラ機構の説明図、第2図は本考案の一実施例の全
体構成を示す図、第3図a,b,cは同実施例の
各部構造を示す図、第4図a,b,cおよび第5
図a,b,cは同実施例に使用する介挿部材の部
材片構造を示す図である。
1……フイーラ、2……軸、3……支持部材、
4a,4b……介挿部材の部材片、5……締付ね
じ。
Figures 1a and b are explanatory diagrams of a conventional feeler mechanism for a minute displacement detector, Figure 2 is a diagram showing the overall configuration of an embodiment of the present invention, and Figures 3a, b, and c are various parts of the same embodiment. Diagrams showing the structure, Figure 4 a, b, c and Figure 5
Figures a, b, and c are diagrams showing the member structure of the insertion member used in the same embodiment. 1... Feeler, 2... Shaft, 3... Support member,
4a, 4b...Member pieces of the insertion member, 5...Tightening screw.
Claims (1)
回動運動を行う支持部材と、この支持部材に取付
けられ前記所定方向の機械的入力が与えられたと
きは前記支持部材に伝達し、該所定方向と直交方
向の機械的入力が与えられたときには前記支持部
材に該機械的入力を伝達しないフイーラとをそな
えた微小変位検出器のフイーラ機構において、互
いに腹合せに組合せられる2つの部材片とこれら
部材片を相互固定するための皿ビス状締付けねじ
とを有する介挿部材をそなえ、 前記部材片の一方にはその中央部の前記締付け
ねじの頭部円錐状面と係合する面取り穴を含み前
記支持部材に対する取付け端側まで貫通するスリ
ツトが設けられ、 前記部材片の他方にはその中央部に前記締付ね
じのねじ穴が設けられてなり、 前記両部材片はその各一端側で前記フイーラを
摩擦を伴つて前記所定方向と直交する方向に回動
し得るように挾持し、各他端側で前記締付けねじ
を締付けたときに広がる前記スリツトの広がり端
寄りの位置にて前記支持部材に対し摩擦を伴つて
前記所定方向に回動し得るように係合してなり、 前記締付ねじの締付力を調節することにより前
記フイーラと前記介挿部材との間の摩擦力および
前記介挿部材と前記支持部材との間の摩擦力を増
減し得るようにしたことを特徴とする微小変位検
出器のフイーラ機構。[Claims for Utility Model Registration] A support member that rotates when mechanical input in a predetermined direction is applied; and a support member that is attached to the support member and when mechanical input in the predetermined direction is applied. and a feeler that does not transmit the mechanical input to the support member when a mechanical input in a direction orthogonal to the predetermined direction is applied, the feeler mechanism of the micro-displacement detector includes: An intervening member having two member pieces and a countersunk screw-like tightening screw for fixing these member pieces to each other is provided, and one of the member pieces has a center portion that engages with the conical head surface of the tightening screw. A slit is provided that includes a matching chamfered hole and penetrates to the mounting end side with respect to the support member, and the other of the member pieces is provided with a screw hole for the tightening screw in the center thereof, and both of the member pieces are provided with a threaded hole for the tightening screw. The filler is held at one end so that it can be rotated with friction in a direction perpendicular to the predetermined direction, and the other end is located near the widening end of the slit that expands when the tightening screw is tightened. The filler is engaged with the support member at the position so as to be able to rotate in the predetermined direction with friction, and by adjusting the tightening force of the tightening screw, the feeler and the insertion member are A feeler mechanism for a minute displacement detector, characterized in that the frictional force between the inserting member and the supporting member can be increased or decreased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17860880U JPS6139281Y2 (en) | 1980-12-12 | 1980-12-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17860880U JPS6139281Y2 (en) | 1980-12-12 | 1980-12-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57101904U JPS57101904U (en) | 1982-06-23 |
JPS6139281Y2 true JPS6139281Y2 (en) | 1986-11-11 |
Family
ID=29973561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17860880U Expired JPS6139281Y2 (en) | 1980-12-12 | 1980-12-12 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6139281Y2 (en) |
-
1980
- 1980-12-12 JP JP17860880U patent/JPS6139281Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS57101904U (en) | 1982-06-23 |
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