JPH08215133A - Bending operation lever of endoscope - Google Patents
Bending operation lever of endoscopeInfo
- Publication number
- JPH08215133A JPH08215133A JP7029372A JP2937295A JPH08215133A JP H08215133 A JPH08215133 A JP H08215133A JP 7029372 A JP7029372 A JP 7029372A JP 2937295 A JP2937295 A JP 2937295A JP H08215133 A JPH08215133 A JP H08215133A
- Authority
- JP
- Japan
- Prior art keywords
- bending operation
- operation lever
- thumb
- finger
- endoscope
- 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.)
- Granted
Links
Landscapes
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は内視鏡の湾曲操作レバー
に係り、特に手元操作部を把持した手の親指を指掛かり
面に押し付けて回動操作することにより湾曲操作用ワイ
ヤを牽引し内視鏡挿入部先端の湾曲部を所望の方向に湾
曲させる内視鏡の湾曲操作レバーに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bending operation lever of an endoscope, and more particularly, a bending operation wire is pulled by pressing a thumb of a hand holding an operating portion against a finger-holding surface and rotating the operation. The present invention relates to a bending operation lever of an endoscope that bends a bending portion at a tip of an endoscope insertion portion in a desired direction.
【０００２】[0002]
【従来の技術】内視鏡の挿入部先端の湾曲部は、手元操
作部の湾曲操作レバーを回動操作することにより湾曲さ
れて所望の方向に向けられる。前記湾曲操作レバーのう
ち、手元操作部を把持した手の親指で操作されるものは
図６に示すように、湾曲操作レバー１の指掛かり面２
に、図中二点鎖線で示す術者の親指３を押し付けて、親
指３を屈伸させることにより湾曲操作レバー１を回動操
作する。2. Description of the Related Art A bending portion of a distal end of an insertion portion of an endoscope is bent by turning a bending operation lever of a hand operation portion and is directed in a desired direction. Among the bending operation levers, the one operated by the thumb of the hand holding the hand operation unit is, as shown in FIG. 6, a finger holding surface 2 of the bending operation lever 1.
Then, the thumb 3 of the operator, which is indicated by a chain double-dashed line in the figure, is pressed and the thumb 3 is bent and extended to rotate the bending operation lever 1.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
内視鏡の湾曲操作レバー１では、図６に於いて反時計回
り方向に回動する場合、親指３を屈曲させなければなら
ず、これにより掌が手元操作部から離れてしまうので、
手元操作部を確実に保持することができず湾曲操作を安
定して行うことができないという欠点がある。However, in the bending operation lever 1 of the conventional endoscope, the thumb 3 must be bent when it is rotated counterclockwise in FIG. Since the palm will move away from the operating unit at hand,
There is a drawback that the hand operation part cannot be reliably held and the bending operation cannot be performed stably.
【０００４】この結果、従来の湾曲操作レバー１では、
湾曲操作の毎に湾曲操作レバー１を回動させ易い位置に
手元操作部を持ち替えなければならないので、取り扱い
難いという欠点がある。本発明はこのような事情に鑑み
てなされたもので、手元操作部を持ち変えることなく湾
曲操作を安定して行うことができる内視鏡の湾曲操作レ
バーを提供することを目的とする。As a result, in the conventional bending operation lever 1,
Each time the bending operation is performed, it is necessary to change the hand operation portion to a position where the bending operation lever 1 can be easily rotated, which is disadvantageous in that it is difficult to handle. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a bending operation lever of an endoscope that can perform a bending operation stably without changing the hand operation unit.
【０００５】[0005]
【課題を解決するための手段】本発明は、前記目的を達
成するために、内視鏡手元操作部に回動自在に設けら
れ、回動操作されることにより内視鏡挿入部先端の湾曲
部を所望の方向に湾曲させる内視鏡の湾曲操作レバーに
於いて、前記湾曲操作レバーの指掛かり面に補助用指掛
かり面を延長形成して指掛かり面全体を略Ｌ字状に形成
したことを特徴としている。In order to achieve the above-mentioned object, the present invention is rotatably provided on an endoscope hand operation portion, and when it is turned, the bending of the distal end of the endoscope insertion portion is achieved. In a bending operation lever of an endoscope for bending a portion in a desired direction, an auxiliary finger hooking surface is extendedly formed on the finger hooking surface of the bending operation lever to form a substantially L-shaped finger hooking surface. It is characterized by that.
【０００６】[0006]
【作用】本発明によれば、湾曲操作レバーを手元から離
れる方向に回動操作する場合には、指掛かり面に術者の
親指を押し付けて一方側に回動する。この場合、親指は
屈曲しない。そして、湾曲操作レバーを手元側に引き寄
せる方向、即ち親指が屈曲する方向に回動操作する場合
には、先ず、前記指掛かり面に術者の親指を押し付けて
湾曲操作レバーを所定量他方側に回動させる。そして、
親指が屈曲するまえに親指を指掛かり面から補助用指掛
かり面に向けてスライド移動させ、そして、この補助用
指掛かり面に親指を押し付けて回動操作する。According to the present invention, when the bending operation lever is rotated in the direction away from the hand, the operator's thumb is pressed against the finger rest surface and rotated to one side. In this case, the thumb does not bend. When the bending operation lever is pivoted in the direction of pulling it toward the hand side, that is, in the direction in which the thumb bends, first, the operator's thumb is pressed against the finger-holding surface to move the bending operation lever to the other side by a predetermined amount. Rotate. And
Before the thumb bends, the thumb is slid from the finger rest surface toward the auxiliary finger rest surface, and the thumb is pressed against the auxiliary finger rest surface to rotate.
【０００７】[0007]
【実施例】以下添付図面に従って本発明に係る内視鏡の
湾曲操作レバーの好ましい実施例を詳述する。図１は、
本発明に係る内視鏡の湾曲操作レバーが適用された内視
鏡を示す全体図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a bending operation lever for an endoscope according to the present invention will be described in detail below with reference to the accompanying drawings. Figure 1
FIG. 1 is an overall view showing an endoscope to which a bending operation lever of an endoscope according to the present invention is applied.
【０００８】同図に示すように内視鏡の手元操作部１０
には挿入部１４が接続され、挿入部１４の先端部には、
湾曲部１６及び先端構成部１７が接続されている。尚、
符号１２は挿入部１４の基端側の保護する折れ止め用カ
バーゴムを示す。手元操作部１０の上端部には接眼部２
０が形成され、手元操作部１０の側面には図示せぬ外部
光源装置に接続されるライトガイドケーブル２２の一端
部が接続されている。前記ライトガイドケーブル２２の
他端はコネクタ２４によって上記光源装置に接続され
る。このライトガイドケーブル２２の内部には、ライト
ガイドが挿入部１４湾曲部１６を通して配装され前記光
源装置からの照明光を先端構成部１７に設けた照明窓か
ら出射するように構成されている。As shown in the figure, the hand-held operation unit 10 of the endoscope
The insertion portion 14 is connected to the
The bending portion 16 and the tip forming portion 17 are connected. still,
Reference numeral 12 indicates a fold-preventing cover rubber that protects the base end side of the insertion portion 14. The eyepiece 2 is provided on the upper end of the hand-held operating unit 10.
0 is formed, and one end of a light guide cable 22 connected to an external light source device (not shown) is connected to a side surface of the hand operation unit 10. The other end of the light guide cable 22 is connected to the light source device by a connector 24. Inside the light guide cable 22, a light guide is provided through the bending portion 16 of the insertion portion 14 so that the illumination light from the light source device is emitted from the illumination window provided in the tip forming portion 17.
【０００９】手元操作部１０の側面には湾曲操作レバー
２６が設けられる。この湾曲操作レバー２６は、手元操
作部１０に回動自在に支持されると共に、手元操作部１
０を把持した術者の左手の親指によって回動操作され
る。湾曲操作レバー２６の軸２８は、手元操作部１０内
に配置された図示しないプーリに連結され、また、この
プーリには前記湾曲部１６に接続された湾曲操作用ワイ
ヤが巻回されている。従って、湾曲操作レバー２６を回
動操作すると、前記プーリが湾曲操作用ワイヤを押し引
き操作することにより、湾曲部１６が所望の方向に湾曲
する。A bending operation lever 26 is provided on the side surface of the hand operation unit 10. The bending operation lever 26 is rotatably supported by the hand operation unit 10, and at the same time, the hand operation unit 1
It is rotated by the thumb of the operator's left hand holding 0. The shaft 28 of the bending operation lever 26 is connected to a pulley (not shown) arranged in the hand operation part 10, and a bending operation wire connected to the bending part 16 is wound around the pulley. Therefore, when the bending operation lever 26 is rotated, the bending section 16 is bent in a desired direction by the pulley pushing and pulling the bending operation wire.
【００１０】次に、湾曲操作レバー２６について図２、
図３を参照しながら説明する。図２は湾曲操作レバー２
６の平面図であり、図３は湾曲操作レバー２６の側面図
である。図２、図３に示すように前記湾曲操作レバー２
６は、軸２８が形成された板状のレバー本体３０と、術
者の親指が接触される指掛かり面が形成された指掛け部
３２とから成り、このレバー本体３０と指掛け部３２と
は一体に形成されている。Next, regarding the bending operation lever 26, as shown in FIG.
This will be described with reference to FIG. FIG. 2 shows the bending operation lever 2.
6 is a plan view of FIG. 6, and FIG. 3 is a side view of the bending operation lever 26. As shown in FIGS. 2 and 3, the bending operation lever 2
Reference numeral 6 includes a plate-shaped lever body 30 having a shaft 28 formed thereon and a finger-holding portion 32 having a finger-holding surface on which the operator's thumb comes into contact. The lever body 30 and the finger-holding portion 32 are integrated. Is formed in.
【００１１】前記指掛け部３２は図２に示すように、範
囲Ａで示す指掛かり面３４と範囲Ｂで示す補助用指掛か
り面３６とでＬ字状に形成される。前記指掛かり面３４
は、従来の湾曲操作レバー２６の指掛かり面と同じであ
り、湾曲操作レバー２６の回動方向に沿って形成され
る。また、前記補助用指掛かり面３６は、指掛かり面３
４の図２中上端部から湾曲操作レバー２６の回動方向に
直交して延長形成されている。補助用指掛かり面３６の
突出部３６Ａは図１に示すように、手元操作部１０から
外側に突出した位置に配置される。As shown in FIG. 2, the finger-holding portion 32 is formed in an L-shape with a finger-holding surface 34 shown in the range A and an auxiliary finger-holding surface 36 shown in the range B. The finger rest surface 34
Is the same as the finger rest surface of the conventional bending operation lever 26, and is formed along the rotation direction of the bending operation lever 26. The auxiliary finger-holding surface 36 is the finger-holding surface 3
2 is extended from the upper end portion of FIG. 2 in the direction orthogonal to the turning direction of the bending operation lever 26. As shown in FIG. 1, the protruding portion 36A of the auxiliary finger-holding surface 36 is arranged at a position protruding outward from the hand operation portion 10.
【００１２】前記指掛かり面３４は図４に示すように、
湾曲操作レバー２６を図中時計回り方向に回動操作する
時に使用され、この時、術者の左手３７の親指３８は指
掛かり面３４の略中央部に位置される。また、指掛かり
面３４は、湾曲操作レバー２６を図４中時計回り方向の
終端位置に保持させる時に使用され、この時、術者の親
指３８は指掛かり面３４の縁部４０に位置される。一
方、前記補助用指掛かり面３６は図５に示すように、湾
曲操作レバー２６を図５中反時計回り方向に回動操作す
る時に使用され、この時、術者の親指３８は補助用指掛
かり面３６の突出部３６Ａに位置される。また、補助用
指掛かり面３６は、湾曲操作レバー２６を図５中反時計
回り方向の終端位置に保持させる時に使用され、この
時、術者の親指３８は補助用指掛かり面３６の縁部４２
に位置される。このように、湾曲操作レバー２６の回動
操作位置に応じて親指３８の位置を変えることにより、
手元操作部１０を持ち替えることなく湾曲操作レバー２
６を操作することができる。As shown in FIG. 4, the finger rest surface 34 is
This is used when the bending operation lever 26 is rotated clockwise in the drawing, and at this time, the thumb 38 of the operator's left hand 37 is positioned substantially in the center of the finger rest surface 34. The finger rest surface 34 is used to hold the bending operation lever 26 at the end position in the clockwise direction in FIG. 4, and at this time, the operator's thumb 38 is positioned at the edge portion 40 of the finger rest surface 34. . On the other hand, as shown in FIG. 5, the auxiliary finger holding surface 36 is used when the bending operation lever 26 is rotated counterclockwise in FIG. 5, and at this time, the operator's thumb 38 is the auxiliary finger. It is located on the protrusion 36 </ b> A of the hanging surface 36. Further, the auxiliary finger-holding surface 36 is used when the bending operation lever 26 is held at the end position in the counterclockwise direction in FIG. 5, and at this time, the operator's thumb 38 is the edge portion of the auxiliary finger-holding surface 36. 42
Is located in. In this way, by changing the position of the thumb 38 according to the turning operation position of the bending operation lever 26,
The bending operation lever 2 without changing the hand operation unit 10
6 can be operated.
【００１３】一方、前記指掛かり面３４及び補助用指掛
かり面３６は、図３に示すように略円弧状に形成され
る。中央部に位置する範囲Ｃは、湾曲操作レバー２６を
小さい角度で操作する時に使用され、範囲Ｄは湾曲操作
レバー２６を図４中時計回り方向の終端位置に保持させ
る時に使用され、指掛かり面の範囲Ｅは湾曲操作レバー
２６を図５中反時計回り方向の終端位置に保持させる時
に使用される。また、範囲Ｃの指掛かり面の曲率中心
は、湾曲操作レバー２６の回動中心Ｏ1 上にあり、前記
範囲Ｄ、Ｅの指掛かり面の曲率中心はレバー本体３０と
指掛け部３２との境界部Ｏ2 、Ｏ3 上にある。即ち、範
囲Ｄ、Ｅの曲率は、範囲Ｃの曲率よりも小さく設定され
ている。更に、指掛かり面には、凸条部と凹条部とが交
互に形成されて成る滑り止め面が形成される。これらの
凸条部と凹条部の形成方向は図２に示すように、湾曲操
作レバー２６の回動方向に直交して形成される。前記滑
り止め面のうち、範囲Ｃの滑り止め面の凸条部５０はθ
°の間隔に形成され、範囲Ｄの滑り止め面の凸条部５２
はγ°の間隔で、また、範囲Ｅの滑り止め面の凸条部５
４は前記凸条部５２と同様にγ°の間隔で形成されてい
る。前記θ°とγ°とはθ°＞γ°であり、これにより
範囲Ｄ、Ｅの凸条部５２、５４は範囲Ｃの凸条部５０よ
りも間隔が狭く形成されている。これにより、本実施例
の湾曲操作レバー２６では、湾曲操作の終端時に親指３
８が範囲Ｄ、Ｅの指掛かり面に密着し易くなっている。On the other hand, the finger-holding surface 34 and the auxiliary finger-holding surface 36 are formed in a substantially arc shape as shown in FIG. The range C located at the center is used when the bending operation lever 26 is operated at a small angle, and the range D is used when the bending operation lever 26 is held at the end position in the clockwise direction in FIG. The range E is used when the bending operation lever 26 is held at the end position in the counterclockwise direction in FIG. Further, the center of curvature of the finger-holding surface in the range C is on the rotation center O 1 of the bending operation lever 26, and the center of curvature of the finger-holding surface in the ranges D and E is the boundary between the lever body 30 and the finger-holding portion 32. Over parts O 2 , O 3 . That is, the curvature of the ranges D and E is set smaller than the curvature of the range C. Further, the finger-holding surface is provided with a non-slip surface formed by alternately forming convex stripes and concave stripes. As shown in FIG. 2, the direction of formation of these ridges and recesses is formed orthogonal to the direction of rotation of the bending operation lever 26. Of the non-slip surface, the ridge portion 50 of the non-slip surface in the range C is θ
The ridges 52 formed on the non-slip surface in the range D at intervals of 90 °
Is the interval of γ °, and the ridges 5 of the non-slip surface in the range E are
4 are formed at intervals of γ ° like the convex strip 52. The above-mentioned θ ° and γ ° are θ °> γ °, whereby the ridge portions 52 and 54 in the ranges D and E are formed with a smaller gap than the ridge portions 50 in the range C. As a result, with the bending operation lever 26 of the present embodiment, the thumb 3 is pressed at the end of the bending operation.
8 easily adheres to the finger-holding surface in the ranges D and E.
【００１４】次に、前記の如く構成された内視鏡の湾曲
操作レバーの作用について説明する。先ず、術者の左手
３７で手元操作部１０を把持する。この時、術者は、湾
曲操作レバー２６を図４中時計回り方向に回動操作し易
い位置で手元操作部１０を把持する。そして、湾曲操作
レバー２６の指掛かり面３４に術者の親指３８を押し付
けて、湾曲操作レバー２６を図４中時計回り方向（手元
から離れる方向）に回動操作する。この場合、術者は、
親指３８の伸長動作で湾曲操作レバー２６を回動操作す
ることができるので、左手３７で手元操作部１０を確実
に把持した状態で湾曲操作レバー２６を操作することが
できる。従って、術者は、湾曲操作レバー２６を前記方
向に安定して操作することができる。Next, the operation of the bending operation lever of the endoscope constructed as described above will be described. First, the operator's left hand 37 grasps the hand operation unit 10. At this time, the operator grips the hand operation unit 10 at a position where the bending operation lever 26 can be easily rotated clockwise in FIG. Then, the operator's thumb 38 is pressed against the finger rest surface 34 of the bending operation lever 26, and the bending operation lever 26 is rotated in the clockwise direction (away from the hand) in FIG. In this case, the operator
Since the bending operation lever 26 can be pivotally operated by the extension operation of the thumb 38, the bending operation lever 26 can be operated with the left hand 37 holding the hand operation unit 10 securely. Therefore, the operator can stably operate the bending operation lever 26 in the direction.
【００１５】次に、湾曲操作レバー２６を図５中反時計
回り方向（手元側に引き寄せる方向）に回動操作する場
合には、術者の左手３７を図４に示した把持状態で、即
ち手元操作部１０を持ち変えないで、先ず、指掛かり面
３４に術者の親指３８を押し付けて湾曲操作レバー２６
を前記方向に所定量回動させる。そして、親指３８が屈
曲するまえに親指３８を指掛け部３２の表面に沿って指
掛かり面３４から補助用指掛かり面３６の突出部３６Ａ
に向けて外側にスライド移動させ、そして、図５に示す
ように前記突出部３６Ａに親指３８を押し付けて回動操
作する。この場合、術者は、親指３８を伸長した状態で
湾曲操作レバー２６を回動操作することができるので、
左手３７で手元操作部１０を確実に把持した状態で湾曲
操作レバー２６を操作することができる。従って、術者
は、湾曲操作レバー２６を前記方向に安定して操作する
ことができる。Next, when the bending operation lever 26 is rotated in the counterclockwise direction in FIG. 5 (the direction in which it is pulled toward the operator's side), the operator's left hand 37 is held in the gripping state shown in FIG. Without holding the hand operation section 10 first, first, the operator's thumb 38 is pressed against the finger rest surface 34 to move the bending operation lever 26.
Is rotated in the above direction by a predetermined amount. Before the thumb 38 bends, the thumb 38 is moved along the surface of the finger-holding portion 32 from the finger-holding surface 34 to the protruding portion 36A of the auxiliary finger-holding surface 36.
Then, as shown in FIG. 5, the thumb 38 is pressed against the projecting portion 36A to rotate it. In this case, the operator can rotate the bending operation lever 26 with the thumb 38 extended,
The bending operation lever 26 can be operated with the left hand 37 holding the hand operation unit 10 securely. Therefore, the operator can stably operate the bending operation lever 26 in the direction.
【００１６】これにより、本実施例の湾曲操作レバー２
６では、手元操作部１０を持ち変えることなく湾曲操作
レバー２６を安定して操作することができる。本実施例
では、補助用指掛かり面３６を手元側に回動する時に使
用するようにしたが、反対側に回動する時にも使用する
ことができる。As a result, the bending operation lever 2 of this embodiment is
In 6, the bending operation lever 26 can be stably operated without changing the hand operation unit 10. In this embodiment, the auxiliary finger resting surface 36 is used when it is turned to the hand side, but it can also be used when it is turned to the opposite side.
【００１７】[0017]
【発明の効果】以上説明したように本発明に係る内視鏡
の湾曲操作レバーによれば、指掛かり面に補助用指掛か
り面を形成して指掛かり面全体を略Ｌ字状に形成し、親
指が屈曲する操作時に前記補助用指掛かり面を利用して
回動操作するようにしたので、手元操作部を持ち変える
ことなく湾曲操作レバーを安定して操作することができ
る。As described above, according to the bending operation lever of the endoscope of the present invention, the auxiliary finger-holding surface is formed on the finger-holding surface so that the entire finger-holding surface is formed in a substantially L shape. Since the auxiliary finger resting surface is used to rotate the thumb when the thumb is bent, the bending operation lever can be stably operated without changing the hand operation part.
【図１】本発明に係る内視鏡の湾曲操作レバーが適用さ
れた内視鏡の全体図FIG. 1 is an overall view of an endoscope to which a bending operation lever of an endoscope according to the present invention is applied.
【図２】本発明に係る内視鏡の湾曲操作レバーの平面図FIG. 2 is a plan view of a bending operation lever of the endoscope according to the present invention.
【図３】図２に示した湾曲操作レバーの側面図3 is a side view of the bending operation lever shown in FIG.
【図４】本発明に係る内視鏡の湾曲操作レバーの操作状
態を示す説明図FIG. 4 is an explanatory view showing an operating state of a bending operation lever of the endoscope according to the present invention.
【図５】本発明に係る内視鏡の湾曲操作レバーの操作状
態を示す説明図FIG. 5 is an explanatory view showing an operating state of a bending operation lever of the endoscope according to the present invention.
【図６】従来の内視鏡の湾曲操作レバーの側面図FIG. 6 is a side view of a bending operation lever of a conventional endoscope.
１０…手元操作部 １６…湾曲部 ２６…湾曲操作レバー ３０…レバー本体 ３２…指掛け部 ３４…指掛かり面 ３６…補助用指掛かり面 10 ... Hand operation part 16 ... Bending part 26 ... Bending operation lever 30 ... Lever body 32 ... Finger rest part 34 ... Finger rest surface 36 ... Auxiliary finger rest surface
Claims (1)
回動操作されることにより内視鏡挿入部先端の湾曲部を
所望の方向に湾曲させる内視鏡の湾曲操作レバーに於い
て、 前記湾曲操作レバーの指掛かり面に補助用指掛かり面を
延長形成して指掛かり面全体を略Ｌ字状に形成したこと
を特徴とする内視鏡の湾曲操作レバー。1. An endoscope hand-operated portion rotatably provided,
In a bending operation lever of an endoscope that bends a bending portion at a tip of an endoscope insertion portion in a desired direction when rotated, an auxiliary finger holding surface is extended to a finger holding surface of the bending operation lever. A bending operation lever for an endoscope, characterized in that the entire finger-holding surface is formed in a substantially L shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7029372A JP3069740B2 (en) | 1995-02-17 | 1995-02-17 | Endoscope bending operation lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7029372A JP3069740B2 (en) | 1995-02-17 | 1995-02-17 | Endoscope bending operation lever |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08215133A true JPH08215133A (en) | 1996-08-27 |
| JP3069740B2 JP3069740B2 (en) | 2000-07-24 |
Family
ID=12274325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7029372A Expired - Lifetime JP3069740B2 (en) | 1995-02-17 | 1995-02-17 | Endoscope bending operation lever |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3069740B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012116393A (en) * | 2010-12-02 | 2012-06-21 | Mitsubishi Agricultural Machinery Co Ltd | Gear shift operating tool of travelling vehicle for working |
-
1995
- 1995-02-17 JP JP7029372A patent/JP3069740B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012116393A (en) * | 2010-12-02 | 2012-06-21 | Mitsubishi Agricultural Machinery Co Ltd | Gear shift operating tool of travelling vehicle for working |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3069740B2 (en) | 2000-07-24 |
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