JP2788218B2 - Geneva gear mechanism - Google Patents
Geneva gear mechanismInfo
- Publication number
- JP2788218B2 JP2788218B2 JP8030247A JP3024796A JP2788218B2 JP 2788218 B2 JP2788218 B2 JP 2788218B2 JP 8030247 A JP8030247 A JP 8030247A JP 3024796 A JP3024796 A JP 3024796A JP 2788218 B2 JP2788218 B2 JP 2788218B2
- Authority
- JP
- Japan
- Prior art keywords
- driven
- rotating body
- geneva gear
- slot
- rotator
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H27/00—Step-by-step mechanisms without freewheel members, e.g. Geneva drives
- F16H27/04—Step-by-step mechanisms without freewheel members, e.g. Geneva drives for converting continuous rotation into a step-by-step rotary movement
- F16H27/06—Mechanisms with driving pins in driven slots, e.g. Geneva drives
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、弧状の凹部と半径
方向外方に向かって開口するスロットとを回転方向に沿
って形成してある従動回転体と、該従動回転体のスロッ
トに係合して、この従動回転体を所定角度で間欠駆動回
転させる係合体を備えた駆動回転体とからなるゼネバ歯
車機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driven rotor having an arcuate concave portion and a slot which opens radially outward along the rotation direction, and engages with the slot of the driven rotor. Further, the present invention relates to a Geneva gear mechanism including a driving rotator provided with an engaging member for intermittently driving the driven rotator at a predetermined angle.
【０００２】[0002]
【従来の技術】この種のゼネバ歯車機構としては、弧状
の凹部と半径方向外方に向かって開口するスロットとを
回転方向に沿って所定ピッチで交互に形成してある従動
回転体と、該従動回転体を間欠駆動回転する駆動回転体
とを備え、この駆動回転体に、従動回転体の複数のスロ
ットに順番に係合して、この従動回転体を所定角度宛間
欠駆動回転させる係合体としての係合ローラと、該係合
ローラがスロットから離脱した従動回転体の間欠停止時
に、従動回転体の弧状凹部の弧状面に接当する自転自在
な複数の回転ローラとを枢着したものが提案されている
（例えば、実開昭６０−６４３５７号公報、実開平６−
４０５０７号公報参照）。このように構成されたゼネバ
歯車機構では、前記駆動回転体の駆動回転によって、係
合ローラが従動回転体の一つのスロットに係合すると、
前記係合ローラが該スロットから離脱するまで従動回転
体は駆動回転され、その後、前記係合ローラが離脱した
スロットの回転方向上手側に位置する次のスロットと係
合ローラとが係合するまで、従動回転体の回転は間欠停
止される。そして、前記従動回転体の間欠停止状態で
は、前記駆動回転体の回転ローラが、従動回転体の弧状
凹部の弧状面に接当しながら自転して、該弧状面に沿っ
て駆動回転体と一体的に移動する。2. Description of the Related Art A Geneva gear mechanism of this type includes a driven rotating body in which arcuate concave portions and slots that open outward in the radial direction are alternately formed at a predetermined pitch along the rotational direction. A driving rotator for intermittently driving and rotating the driven rotator, wherein the driving rotator is engaged with a plurality of slots of the driven rotator in order, and the driven rotator is intermittently driven and rotated by a predetermined angle. And a plurality of rotatable rotating rollers that contact the arcuate surface of the arcuate recess of the driven rotating body when the driven rotating body is intermittently stopped when the engaging roller is separated from the slot. (For example, Japanese Utility Model Laid-Open No. 60-64357, Japanese Utility Model Application Laid-Open No. 6-64357).
No. 40507). In the Geneva gear mechanism configured as described above, when the engagement roller engages with one slot of the driven rotating body by the driving rotation of the driving rotating body,
The driven rotator is driven and rotated until the engagement roller is disengaged from the slot, and thereafter, the engagement roller is engaged with the next slot positioned on the rotationally upstream side of the slot from which the engagement roller has disengaged. The rotation of the driven rotor is intermittently stopped. In the intermittent stop state of the driven rotator, the rotation roller of the driving rotator rotates while contacting the arcuate surface of the arcuate concave portion of the driven rotator, and is integrated with the driving rotator along the arcuate surface. Move.
【０００３】[0003]
【発明が解決しようとする課題】上記従来のゼネバ歯車
機構によれば、前記従動回転体の間欠停止状態で、駆動
回転体が回転する際、回転ローラが自転しながら従動回
転体の弧状凹部の弧状面に沿って移動するから、例え
ば、前記駆動回転体に、従動回転体の間欠停時に、従動
回転体の弧状凹部の弧状面に摺接状態で相対移動する回
転規制面を備えたカムを固着してあるもの（例えば、実
開平６−４０５０７号公報の図４参照）に比して、前記
従動回転体の間欠停止時における駆動回転体と従動回転
体との間に発生する摩擦力を軽減することができ、駆動
回転体を焼付きのない状態で円滑に駆動回転させること
ができ、ゼネバ歯車機構の寿命の延長、及び、駆動回転
体自体の回転に要する消費エネルギーの軽減を図り易
い。しかしながら、前記従来のゼネバ歯車機構では、前
記各回転ローラとそれを回転自在に支承する駆動回転体
側の軸部材との間の各々に、回転ローラが従動回転体の
弧状面に沿って自転しながら駆動回転体と一体的に移動
するときの反力が作用するため、その反力作用箇所での
摩擦力が大きく、ゼネバ歯車機構の寿命延長面及び省エ
ネルギー化面で改善の余地があった。According to the above-mentioned conventional Geneva gear mechanism, when the driven rotating body rotates in the intermittently stopped state of the driven rotating body, the rotating roller rotates by itself while rotating the driven roller in the arcuate recess of the driven rotating body. Because it moves along the arcuate surface, for example, the drive rotator has a cam provided with a rotation regulating surface that relatively moves in a sliding contact with the arcuate surface of the arcuate recess of the driven rotator when the driven rotator is intermittently stopped. The frictional force generated between the driving rotator and the driven rotator when the driven rotator is intermittently stopped is lower than that of the fixed rotator (for example, see FIG. 4 of Japanese Utility Model Laid-Open No. 6-40507). The driving rotary body can be smoothly driven and rotated without seizure, so that the life of the Geneva gear mechanism can be extended and the energy consumption required for rotating the driving rotary body itself can be easily reduced. . However, in the above-mentioned conventional Geneva gear mechanism, the rotating roller rotates along the arcuate surface of the driven rotating body between each of the rotating rollers and the shaft member on the driving rotating body side that rotatably supports the rotating rollers. Since the reaction force when moving integrally with the driving rotary body acts, the frictional force at the reaction force acting portion is large, and there is room for improvement in extending the life of the Geneva gear mechanism and saving energy.
【０００４】本発明は、上記実状に鑑みて為されたもの
であって、その目的は、駆動回転体に設けられる回転体
の保持構造を工夫することにより、従来技術に比して寿
命延長化及び省エネルギー化を促進することのできるゼ
ネバ歯車機構を提供する点にある。The present invention has been made in view of the above situation, and an object of the present invention is to extend the life as compared with the prior art by devising a structure for holding a rotating body provided in a driving rotating body. Another object of the present invention is to provide a Geneva gear mechanism capable of promoting energy saving.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明の請求項１記載のゼネバ歯車機構の特徴構成
は、弧状の凹部と半径方向外方に向かって開口するスロ
ットとを回転方向に沿って形成してある従動回転体と、
該従動回転体のスロットに係合して、この従動回転体を
所定角度で間欠駆動回転させる係合体を備えた駆動回転
体とからなるゼネバ歯車機構であって、前記駆動回転体
に、前記係合体がスロットから離脱した従動回転体の間
欠停止時に、前記従動回転体の弧状凹部の弧状面に沿っ
て相対移動する回転規制面を備えたカムを設け、このカ
ムに、前記従動回転体の弧状凹部の弧状面に接当する複
数個の回転体を自転並びに循環転動自在に保持する環状
溝を形成してある点にある。上記特徴構成によれば、前
記係合体がスロットから離脱した従動回転体の間欠停止
時に、前記駆動回転体側のカムの環状溝に保持された複
数の回転体が、従動回転体の弧状凹部の弧状面に接当し
て、自転しながら環状溝に沿って循環転動するから、駆
動回転体と従動回転体との間に発生する摩擦力を軽減す
ることができ、駆動回転体を焼付きやガタツキの少ない
状態で円滑に駆動回転させることができる。それ故に、
従来技術に比して、ゼネバ歯車機構の寿命延長化及び省
エネルギー化を促進することができる。In order to achieve the above object, a feature of the Geneva gear mechanism according to claim 1 of the present invention is to rotate an arcuate concave portion and a slot that opens radially outward. A driven rotating body formed along the direction,
A driving rotator having an engaging member engaged with a slot of the driven rotator to intermittently rotate the driven rotator at a predetermined angle, the Geneva gear mechanism comprising: At the time of intermittent stop of the driven rotating body in which the union is separated from the slot, a cam provided with a rotation regulating surface that relatively moves along the arcuate surface of the arcuate concave portion of the driven rotating body is provided. An annular groove is formed to hold a plurality of rotating bodies abutting on the arcuate surface of the concave portion so as to rotate and circulate freely. According to the above-mentioned characteristic configuration, when the driven body is intermittently stopped when the engagement body is disengaged from the slot, the plurality of bodies held in the annular groove of the cam on the drive body become arc-shaped in the arc-shaped recess of the driven body. Since it comes into contact with the surface and circulates and rolls along the annular groove while rotating, it is possible to reduce the frictional force generated between the driving rotator and the driven rotator, and The drive rotation can be performed smoothly with little backlash. Therefore,
As compared with the related art, it is possible to promote the life extension and energy saving of the Geneva gear mechanism.
【０００６】本発明の請求項２記載のゼネバ歯車機構の
特徴構成は、前記駆動回転体の係合体が従動回転体のス
ロットに係合するとき、前記カムの回転規制面が、従動
回転体の弧状凹部の弧状面の円周方向長さの半分又はそ
れ以上の長さに亘って近接状態で相対向するように構成
されている点にある。上記特徴構成によれば、駆動回転
体の係合体が従動回転体のスロットに係合するとき、カ
ムの回転規制面が従動回転体の弧状面の円周方向長さの
半分又はそれ以上の長さに亘って近接位置しているの
で、従動回転体の間欠停止時における従動回転体の正転
方向及び逆転方向への遊転を規制することができ、従動
回転体のスロットを所定の係合位置に確実に保持するこ
とができる。それ故に、前記駆動回転体の係合体を従動
回転体のスロットに対して引っ掛ることなく確実、スム
ースに係合させることができる。According to another feature of the Geneva gear mechanism of the present invention, when the engaging body of the driving rotating body is engaged with the slot of the driven rotating body, the rotation restricting surface of the cam is driven by the driven rotating body. The configuration is such that the arc-shaped concave portions are opposed to each other in a close state over half or more of the circumferential length of the arc-shaped surface of the arc-shaped concave portion. According to the above feature, when the engaging body of the driving rotating body is engaged with the slot of the driven rotating body, the rotation regulating surface of the cam has a length equal to or more than half the circumferential length of the arcuate surface of the driven rotating body. Since the driven rotator is located in close proximity to the driven rotator, the idle rotation of the driven rotator in the forward rotation direction and the reverse rotation direction at the time of intermittent stop of the driven rotator can be restricted, and the slot of the driven rotator is engaged with the predetermined engagement. The position can be securely held. Therefore, the engaging body of the driving rotating body can be reliably and smoothly engaged with the slot of the driven rotating body without being caught.
【０００７】本発明の請求項３記載のゼネバ歯車機構の
特徴構成は、前記駆動回転体の係合体が従動回転体のス
ロットから離脱するとき、前記カムの回転規制面が、従
動回転体の弧状凹部の弧状面の円周方向長さの半分又は
それ以上の長さに亘って近接状態で相対向するように構
成されている点にある。上記特徴構成によれば、駆動回
転体の係合体が従動回転体のスロットから離脱すると
き、カムの回転規制面が従動回転体の弧状面の円周方向
長さの半分又はそれ以上の長さに亘って近接位置してい
るので、従動回転体の間欠停止時における従動回転体の
正転方向及び逆転方向への遊転を規制することができ
る。それ故に、前記駆動回転体の係合体を従動回転体の
スロットから引っ掛ることなく確実、スムースに離脱さ
せることができる。According to a third aspect of the present invention, when the engaging member of the driving rotary member is disengaged from the slot of the driven rotary member, the rotation regulating surface of the cam is formed in an arc shape of the driven rotary member. The configuration is such that the recesses are configured so as to face each other in a close state over half or more of the circumferential length of the arcuate surface of the concave portion. According to the above configuration, when the engaging body of the driving rotating body is disengaged from the slot of the driven rotating body, the rotation regulating surface of the cam has a length equal to or more than half the circumferential length of the arcuate surface of the driven rotating body. , The idle rotation of the driven rotator in the forward and reverse directions when the driven rotator is intermittently stopped can be restricted. Therefore, the engaging body of the driving rotating body can be reliably and smoothly detached without being caught from the slot of the driven rotating body.
【０００８】本発明の請求項４記載のゼネバ歯車機構の
特徴構成は、前記従動回転体の弧状凹部の弧状面に、前
記回転体に嵌合するガイド溝が形成されている点にあ
る。上記特徴構成によれば、前記回転体をガイド溝に嵌
合するだけで、駆動回転体と従動回転体との組付作業時
の位置合わせを行うことができる。A feature of the Geneva gear mechanism according to a fourth aspect of the present invention is that a guide groove to be fitted to the rotating body is formed on an arc-shaped surface of the arc-shaped recess of the driven rotating body. According to the above-mentioned characteristic configuration, it is possible to perform positioning of the driving rotator and the driven rotator during the assembling operation only by fitting the rotator into the guide groove.
【０００９】本発明の請求項５記載のゼネバ歯車機構の
特徴構成は、前記カムの周面のうち、前記係合体がスロ
ットに係合した従動回転体の間欠回転時に、前記従動回
転体との相対回転を許容する相対回転許容面側において
は、前記環状溝に保持された回転体が外部に露出しない
ように構成されている点にある。上記特徴構成によれ
ば、前記環状溝全周に亘って回転体が外部に露出するの
もに比して、環状溝内に塵埃等が侵入する可能性のある
範囲を縮小でき、もって、環状溝内への塵埃等の侵入に
よる回転体の自転不良並びに転動不良の発生を抑制する
ことができる。According to a fifth aspect of the present invention, there is provided the Geneva gear mechanism, wherein the interlock between the driven rotating body and the driven rotating body during the intermittent rotation of the driven rotating body in which the engaging body is engaged with the slot on the peripheral surface of the cam. On the side of the relative rotation permitting surface that allows the relative rotation, the rotating body held in the annular groove is configured not to be exposed to the outside. According to the above-mentioned characteristic configuration, the range in which dust and the like can enter the annular groove can be reduced as compared with the case where the rotating body is exposed to the outside over the entire circumference of the annular groove. The occurrence of poor rotation and poor rolling of the rotating body due to intrusion of dust and the like into the grooves can be suppressed.
【００１０】本発明の請求項６記載のゼネバ歯車機構の
特徴構成は、前記回転体がボールである点にある。上記
特徴構成によれば、回転体が、両端を半球状に丸めた円
柱部材で構成されているものに比して、隣接する回転体
同士の接触範囲を小さくすることができるので、回転体
の自転並びに転動を更に滑らかに行わせることができ
る。しかも、上記請求項５記載のゼネバ歯車機構の特徴
構成を備えたものにおいては、ボールとガイド溝とが線
接触するので、ボールと弧状面とが点接触するものに比
べてボールの摩耗を抑制することができる。A feature of the Geneva gear mechanism according to claim 6 of the present invention is that the rotating body is a ball. According to the above-mentioned characteristic configuration, the contact area between the adjacent rotating bodies can be reduced as compared with the case where the rotating body is formed of a cylindrical member having both ends rounded in a hemisphere. The rotation and the rolling can be performed more smoothly. In addition, in the apparatus having the characteristic configuration of the Geneva gear mechanism according to the fifth aspect, since the ball and the guide groove are in line contact, the wear of the ball is suppressed as compared with the case where the ball and the arcuate surface are in point contact. can do.
【００１１】[0011]
【発明の実施の形態】 〔第１実施形態〕図１〜図７は、本発明のゼネバ歯車機
構の好ましい実施形態を示し、出力軸１を備えた従動回
転体２と、該従動回転体２を間欠駆動回転する、入力軸
３を備えた駆動回転体４とから構成されていて、これら
両回転体２，４は前記出力軸１及び入力軸３を介して固
定フレーム（図示せず）に回転自在に軸支されている。
図７に示すように、前記入力軸３は、電動モータや油圧
モータ等の駆動アクチュエータを備えた駆動系Ｄにより
駆動回転自在に構成されていて、この駆動系Ｄからの回
転出力が入力軸３を介して前記駆動回転体４に動力伝達
されて、該駆動回転体４が駆動回転されるとともに、該
駆動回転体４により間欠駆動回転された前記従動回転体
２の間欠回転は、出力軸１を介して、例えば、ワークの
割り出し加工を行う加工装置等の入力部Ｅに動力伝達さ
れる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIGS. 1 to 7 show a preferred embodiment of a Geneva gear mechanism of the present invention, in which a driven rotor 2 having an output shaft 1 and a driven rotor 2 are provided. And a driving rotating body 4 provided with an input shaft 3 for intermittently driving rotation of the rotating shaft, and both rotating bodies 2 and 4 are connected to a fixed frame (not shown) via the output shaft 1 and the input shaft 3. It is rotatably supported.
As shown in FIG. 7, the input shaft 3 is rotatably driven by a drive system D having a drive actuator such as an electric motor or a hydraulic motor, and a rotation output from the drive system D is applied to the input shaft 3. Power is transmitted to the driving rotator 4 via the rotator 4 so that the driving rotator 4 is driven to rotate, and the intermittent rotation of the driven rotator 2 intermittently driven and rotated by the driving rotator 4 , Power is transmitted to an input unit E of, for example, a processing apparatus for performing a workpiece indexing process.
【００１２】図１〜図５に示すように、前記従動回転体
２には、同一形状の弧状の凹部５と、半径方向外方に向
かって開口する同一形状のＵ字状に切り欠かれたスロッ
ト６とが、回転方向に沿って所定ピッチで６箇所づつ交
互に形成されているとともに、その中心部に形成された
貫通孔２ａに前記出力軸１が挿通止着されている（以
下、前記従動回転体２をゼネバ歯車と称する。）。尚、
前記ゼネバ歯車２は高炭素クロム軸受鋼鋼材（ＳＵＪ
２）から形成されていて、前記各弧状の凹部５の周辺部
分には焼き入れが施されている。As shown in FIGS. 1 to 5, the driven rotor 2 has an arcuate recess 5 of the same shape and a U-shape of the same shape which opens outward in the radial direction. Slots 6 are alternately formed at predetermined intervals along the rotation direction at six locations, and the output shaft 1 is inserted and secured in a through hole 2a formed in the center thereof (hereinafter, referred to as the above-mentioned). The driven rotor 2 is referred to as a Geneva gear.) still,
The Geneva gear 2 is made of high carbon chromium bearing steel (SUJ
2), and the periphery of each of the arc-shaped concave portions 5 is quenched.
【００１３】図６に示すように、前記駆動回転体４を構
成するに、周縁部分の一部を前記ゼネバ歯車２に回転軸
芯方向で重合させてある円板状の基体７には、その一側
面側の周縁部一箇所に、前記ゼネバ歯車２の六つのスロ
ット６に順番に係合して、このゼネバ歯車２を６０度宛
間欠駆動回転させる係合体としての一つの係合ローラ８
が回転自在に軸着されているとともに、前記基体７の一
側面側の中心部には、図５に示すように、前記係合ロー
ラ８がスロット６から離脱したゼネバ歯車２の間欠停止
時に、該ゼネバ歯車２の弧状凹部５の弧状面５Ａに沿っ
て相対移動する弧状の回転規制面９を備えたカム１１が
設けられている。更に、図３に示すように、前記カム１
１には、前記係合ローラ８がスロット６に係合したゼネ
バ歯車２の間欠回転時に、該カム１１とゼネバ歯車２と
の接当を回避して、ゼネバ歯車２と前記カム１１との相
対回転を許容する相対回転許容面１０が形成されてい
る。また、前記駆動回転体４の中心部には、前記基体７
とカム１１とに亘って貫通孔４ａが形成されていて、該
貫通孔４ａに前記入力軸３が挿通止着されている。尚、
前記駆動回転体４を構成する基体７とカム１１とは、高
炭素クロム軸受鋼鋼材（ＳＵＪ２）から形成されてい
る。As shown in FIG. 6, in order to constitute the driving rotary member 4, a disk-shaped base 7 in which a part of the peripheral portion is superimposed on the Geneva gear 2 in the direction of the axis of rotation is provided. One engaging roller 8 as an engaging body which is engaged with six slots 6 of the Geneva gear 2 in sequence at one peripheral portion on one side surface and intermittently rotates the Geneva gear 2 by 60 degrees.
Is rotatably mounted on the shaft, and at the center of one side surface of the base 7, as shown in FIG. 5, when the Geneva gear 2 is stopped intermittently when the engagement roller 8 is separated from the slot 6, A cam 11 having an arc-shaped rotation regulating surface 9 relatively moving along an arc surface 5A of the arc-shaped concave portion 5 of the Geneva gear 2 is provided. Further, as shown in FIG.
1, when the engagement roller 8 is intermittently rotated with the Geneva gear 2 engaged with the slot 6, the cam 11 and the Geneva gear 2 are prevented from coming into contact with each other so that the relative position between the Geneva gear 2 and the cam 11 is reduced. A relative rotation allowing surface 10 that allows rotation is formed. Further, the base 7 is provided at the center of the driving rotator 4.
The cam 11 is formed with a through hole 4a, and the input shaft 3 is inserted into the through hole 4a. still,
The base body 7 and the cam 11 constituting the driving rotator 4 are formed of a high carbon chromium bearing steel (SUJ2).
【００１４】図２〜図５に示すように、前記カム１１の
回転規制面９は、基体７の回転軸芯を中心とするほぼ２
５５度の範囲の弧状面から形成され、この回転規制面９
の半径が、ゼネバ歯車２の弧状凹部５の半径よりも極僅
かに小に形成されているとともに、前記カム１１の相対
回転許容面１０は、前記回転規制面９の円周方向両端側
に連続し、かつ、該回転規制面９とは回転軸芯を挟んで
反対側に位置して、弯曲状に窪む凹部から構成されてい
て、前記カム１１は回転軸芯方向視でほぼ三日月状に形
成されている。図６、図７に示すように、前記カム１１
は、基体７に一体形成されている雌型カム部材１１Ａ
と、該雌型カム部材１１Ａに回転軸芯方向から嵌合さ
れ、一対のボルト１３にて締付け固定される雄型カム部
材１１Ｂとから分割構成されている。前記回転軸芯方向
で相対向する雌雄一対のカム部材１１Ａ，１１Ｂの対向
面間には、複数個の回転体としての高炭素クロム軸受鋼
鋼材（ＳＵＪ２）製のボール１４を自転並びに循環転動
自在に保持する環状溝１５を分割形成する断面弧状の溝
部１５Ａ，１５Ｂが形成されているとともに、該環状溝
１５は、回転規制面９と相対回転許容面１０とに沿う半
円状に連続形成されている。そして、前記環状溝１５
は、前記回転規制面９相当位置において半径方向外方に
向かって開口形成されていて、該開口部分を通してカム
１１の回転規制面９から半径方向外方に向かって突出状
態で露出する前記ボール１４の表面が、ゼネバ歯車２の
間欠停止時に、前記ゼネバ歯車２の弧状凹部５の弧状面
５Ａと接当するように構成されている。尚、前記環状溝
１５の開口部分の回転軸芯方向に沿う開口幅は、ボール
１４がこの開口部分を通して環状溝１５から抜け出すこ
とがにように、ボール１４の直径よりも小に形成されて
いる。また、前記環状溝１５は、相対回転許容面１０側
でボール１４が外部に露出しないように、相対回転許容
面１０側においてカム１１内にトンネル状に形成されて
いる。As shown in FIGS. 2 to 5, the rotation restricting surface 9 of the cam 11 is substantially
The rotation regulating surface 9 is formed from an arc-shaped surface in a range of 55 degrees.
Is formed slightly smaller than the radius of the arcuate concave portion 5 of the Geneva gear 2, and the relative rotation allowing surface 10 of the cam 11 is continuous with both ends of the rotation regulating surface 9 in the circumferential direction. And, the rotation regulating surface 9 is located on the opposite side with respect to the rotation axis, and is formed of a concave portion that is depressed in a curved shape, and the cam 11 is substantially crescent-shaped when viewed in the rotation axis center direction. Is formed. As shown in FIG. 6 and FIG.
Is a female cam member 11A integrally formed on the base 7.
And a male cam member 11B which is fitted to the female cam member 11A from the direction of the axis of rotation and is fastened and fixed by a pair of bolts 13. Between the opposing surfaces of a pair of male and female cam members 11A and 11B opposing each other in the direction of the rotation axis, balls 14 made of high carbon chromium bearing steel (SUJ2) as a plurality of rotating bodies are rotated and circulated. Grooves 15A and 15B having arcuate cross-sections are formed to divide the annular groove 15 that can be freely held, and the annular groove 15 is formed continuously in a semicircular shape along the rotation regulating surface 9 and the relative rotation allowing surface 10. Have been. And the annular groove 15
The ball 14 has an opening formed radially outward at a position corresponding to the rotation restricting surface 9, and is exposed in a state protruding radially outward from the rotation restricting surface 9 of the cam 11 through the opening. When the Geneva gear 2 is intermittently stopped, the surface of the Geneva gear 2 comes into contact with the arc-shaped surface 5A of the arc-shaped concave portion 5 of the Geneva gear 2. The width of the opening of the annular groove 15 along the axis of rotation is smaller than the diameter of the ball 14 so that the ball 14 can escape from the annular groove 15 through the opening. . Further, the annular groove 15 is formed in a tunnel shape in the cam 11 on the relative rotation allowing surface 10 side so that the ball 14 is not exposed to the outside on the relative rotation allowing surface 10 side.
【００１５】前記ゼネバ歯車２の弧状凹部５の弧状面５
Ａには、その円周方向全長に亘って、前記回転規制面９
から外部に露出するボール１４の露出部分表面と、前記
カム１１の回転方向と交差する方向に沿って線接触する
状態で、これらボール１４を嵌合する断面半円弧状のガ
イド溝１６が形成されている。The arcuate surface 5 of the arcuate recess 5 of the Geneva gear 2
A includes the rotation regulating surface 9 over its entire length in the circumferential direction.
A guide groove 16 having a semicircular cross section for fitting these balls 14 is formed in a state where the exposed surfaces of the balls 14 exposed to the outside are in line contact with the cam 11 along a direction intersecting the rotation direction of the cam 11. ing.
【００１６】上記の如く構成されたゼネバ歯車機構によ
れば、前記駆動系Ｄからの出力により入力軸３が駆動回
転すると駆動回転体４を構成する基体７が一体的に回転
し、該基体７の一回転途中で前記係合ローラ８がゼネバ
歯車２の一つのスロット６に係合する。この状態では、
図２〜図４に示すように、前記カム１１の相対回転許容
面１０側がゼネバ歯車２側に面して、カム１１とゼネバ
歯車２との相対回転が許容され、係合ローラ８とスロッ
ト６との係合によりゼネバ歯車２が６０度強制回転され
る。尚、前記係合ローラ８とスロット６の周壁との接触
による摩擦は、該係合ローラ８の回転により軽減され
る。その後、係合ローラ８がスロット６から離脱し、基
体７が一回転して、この係合ローラ８が離脱したスロッ
ト６の回転方向上手側に位置する次のスロット６とこの
係合ローラ８が係合するまで、ゼネバ歯車２の回転は間
欠停止される。図５に示すように、前記駆動回転体４の
係合ローラ８がゼネバ歯車２のスロット６から離脱する
時から、前記駆動回転体４の係合ローラ８がゼネバ歯車
２の次のスロット６に係合するまでの間、つまり、ゼネ
バ歯車２の間欠停止時には、カム１１の回転規制面９
が、離脱したスロット６の回転方向上手側に隣接するゼ
ネバ歯車２の弧状凹部５の弧状面５Ａの円周方向長さの
半分以上の長さに亘って近接状態で相対向するように構
成されているので、この間は、カム１１の回転規制面９
がゼネバ歯車２の弧状面５Ａの円周方向長さの半分又は
それ以上の長さに亘って近接位置しているとともに、カ
ム１１の環状溝１５に保持され、回転規制面９から外部
に露出する複数のボール１４が、ゼネバ歯車２の弧状面
５Ａに形成されたガイド溝１６に線接触状態で嵌合され
ることとなり、ゼネバ歯車２の正転方向及び逆転方向へ
の遊転が規制される。尚、前記ゼネバ歯車２の間欠停止
時において、ゼネバ歯車２の弧状凹部５の弧状面５Ａに
形成されているガイド溝１６に線接触状態で嵌合するボ
ール１４は、この接当圧により自転並びに環状溝１５に
沿って転動しながら、該環状溝１５内を循環移動するの
で、ゼネバ歯車２の弧状凹部５の弧状面５Ａとカム１１
の回転規制面９との重合面間には摩擦力が殆ど作用する
ことがない。According to the Geneva gear mechanism configured as described above, when the input shaft 3 is driven to rotate by the output from the drive system D, the base 7 constituting the drive rotating body 4 rotates integrally, and the base 7 During one rotation, the engagement roller 8 engages with one slot 6 of the Geneva gear 2. In this state,
As shown in FIGS. 2 to 4, the relative rotation allowing surface 10 of the cam 11 faces the Geneva gear 2, and the cam 11 and the Geneva gear 2 are allowed to rotate relative to each other. , The Geneva gear 2 is forcibly rotated by 60 degrees. The friction caused by the contact between the engaging roller 8 and the peripheral wall of the slot 6 is reduced by the rotation of the engaging roller 8. Thereafter, the engaging roller 8 is disengaged from the slot 6 and the base 7 rotates once, and the next slot 6 located on the rotation direction upper side of the slot 6 from which the engaging roller 8 has disengaged and the engaging roller 8 Until the engagement, the rotation of the Geneva gear 2 is intermittently stopped. As shown in FIG. 5, from the time when the engaging roller 8 of the driving rotator 4 is disengaged from the slot 6 of the Geneva gear 2, the engaging roller 8 of the driving rotator 4 is moved to the next slot 6 of the Geneva gear 2. Until the engagement, that is, when the Geneva gear 2 is intermittently stopped, the rotation regulating surface 9 of the cam 11
Are arranged so as to oppose each other in close proximity over a half or more of the circumferential length of the arc-shaped surface 5A of the arc-shaped concave portion 5 of the Geneva gear 2 adjacent to the removed slot 6 in the rotation direction. During this time, the rotation regulating surface 9 of the cam 11 is
Are located close to one another over half or more of the circumferential length of the arcuate surface 5A of the Geneva gear 2, are held by the annular groove 15 of the cam 11, and are exposed to the outside from the rotation regulating surface 9. The plurality of balls 14 are fitted in the guide grooves 16 formed in the arc-shaped surface 5A of the Geneva gear 2 in a line contact state, and the idle rotation of the Geneva gear 2 in the normal rotation direction and the reverse rotation direction is restricted. You. When the Geneva gear 2 is intermittently stopped, the ball 14 fitted in a line contact state with the guide groove 16 formed in the arc-shaped surface 5A of the arc-shaped concave portion 5 of the Geneva gear 2 rotates and rotates by this contact pressure. While circulating in the annular groove 15 while rolling along the annular groove 15, the arc surface 5A of the arc concave portion 5 of the Geneva gear 2 and the cam 11
The frictional force hardly acts between the rotation regulating surface 9 and the overlapping surface.
【００１７】〔第２実施形態〕図８は、前記第１実施形
態の駆動回転体４の別実施形態を示し、前記駆動回転体
４のカム１１の回転規制面９と相対回転許容面１０との
境界部分を弧状に面取り加工するとともに、前記カム１
１に形成された環状溝１５に自転並びに循環転動自在に
保持された前記回転体としてのボール１４を、回転規制
面９と相対回転許容面１０との全周に亘って外部に露出
させて実施してもよい。その他の構成は前記第１実施形
態と同様に構成されている。[Second Embodiment] FIG. 8 shows another embodiment of the driving rotator 4 of the first embodiment, wherein the rotation regulating surface 9 and the relative rotation allowing surface 10 of the cam 11 of the driving rotator 4 Of the boundary between the cam 1 and the cam 1
The ball 14 as the rotating body held in the annular groove 15 formed in the first embodiment so as to rotate and circulate freely is exposed to the outside over the entire circumference of the rotation regulating surface 9 and the relative rotation allowing surface 10. May be implemented. Other configurations are the same as those of the first embodiment.
【００１８】〔第３実施形態〕図９〜図１１は、本発明
のゼネバ歯車機構の別実施形態を示し、前記従動回転体
であるゼネバ歯車２には、半径方向外方に向かって開口
するＵ字状に切り欠かれた一つのスロット６と、該スロ
ット６を挟んで隣接する二つの同一形状の弧状の凹部５
とが回転方向に沿って所定ピッチで形成されているとと
もに、前記駆動回転体４は、該駆動回転４に軸着されて
いる前記係合ローラ８が前記ゼネバ歯車２のスロット６
に係合する直前位置から、この係合ローラ８が前記ゼネ
バ歯車２のスロット６から離脱した直後位置に亘って、
前記駆動系Ｄにより往復駆動回転自在に構成されている
ことを除いて、前記第１実施形態と同様に構成されてい
る。このように構成されたゼネバ歯車機構によれば、前
記駆動系Ｄによる駆動回転体４の往路方向への駆動回転
により、ゼネバ歯車２のスロット６に駆動回転体４の係
合ローラ８が係合して前記ゼネバ歯車２が一方向に間欠
駆動回転され、この係合ローラ８がゼネバ歯車２のスロ
ット６から離脱すると、ゼネバ歯車２が間欠停止した状
態で、駆動回転体４のカム１１の回転規制面９とゼネバ
歯車２の一方の弧状凹部５の弧状面５Ａとが少し相対移
動し、駆動回転体４の回転駆動が停止する。その後、前
記駆動系Ｄにより駆動回転体４が復路方向に駆動回転さ
れ、この駆動回転体４の復路方向への駆動回転により、
ゼネバ歯車２のスロット６に駆動回転体４の係合ローラ
８が係合すると、前記ゼネバ歯車２が逆方向に間欠駆動
回転され、この係合ローラ８がゼネバ歯車２のスロット
６から離脱すると、ゼネバ歯車２が間欠停止した状態
で、駆動回転体４のカム１１の回転規制面９とゼネバ歯
車２の他方の弧状凹部５の弧状面５Ａとが少し相対移動
したのち、駆動回転体４の回転駆動が停止する。従っ
て、前記駆動回転体４の前記往復駆動回転の繰り返しに
より、前記ゼネバ歯車２を所定のストロークで確実に往
復回転させることできる。その他の構成は前記第１実施
形態と同様に構成されている。[Third Embodiment] FIGS. 9 to 11 show another embodiment of the Geneva gear mechanism of the present invention. The Geneva gear 2 which is the driven rotating body is opened outward in the radial direction. One slot 6 cut out in a U-shape and two arc-shaped recesses 5 having the same shape adjacent to each other with the slot 6 interposed therebetween.
Are formed at a predetermined pitch along the rotation direction, and the driving rotator 4 is configured such that the engaging roller 8 which is axially mounted on the driving rotation 4 has a slot 6 of the Geneva gear 2.
From the position immediately before the engagement roller 8 is disengaged from the slot 6 of the Geneva gear 2,
The configuration is the same as that of the first embodiment except that the drive system D is configured to be freely reciprocally driven and rotatable. According to the Geneva gear mechanism configured as described above, the engagement of the engagement roller 8 of the drive rotary member 4 with the slot 6 of the Geneva gear 2 by the drive rotation of the drive rotary member 4 in the forward direction by the drive system D. When the Geneva gear 2 is intermittently driven and rotated in one direction and the engagement roller 8 is separated from the slot 6 of the Geneva gear 2, the cam 11 of the drive rotating body 4 rotates while the Geneva gear 2 is intermittently stopped. The regulating surface 9 and the arcuate surface 5A of the arcuate concave portion 5 of the Geneva gear 2 slightly move relative to each other, and the rotation of the driving rotating body 4 stops. Thereafter, the drive rotating body 4 is driven and rotated in the backward direction by the drive system D, and by the drive rotation of the drive rotating body 4 in the backward direction,
When the engaging roller 8 of the driving rotating body 4 is engaged with the slot 6 of the Geneva gear 2, the Geneva gear 2 is intermittently driven in the reverse direction, and when the engaging roller 8 is separated from the slot 6 of the Geneva gear 2, With the Geneva gear 2 stopped intermittently, the rotation regulating surface 9 of the cam 11 of the driving rotator 4 and the arcuate surface 5A of the other arcuate recess 5 of the Geneva gear 2 slightly move relative to each other, and then the rotation of the driving rotator 4 Driving stops. Therefore, the Geneva gear 2 can be surely reciprocated at a predetermined stroke by repeating the reciprocating drive rotation of the drive rotator 4. Other configurations are the same as those of the first embodiment.
【００１９】〔その他の実施形態〕 前記従動回転体（ゼネバ歯車）２としては、凹部５
とスロット６とが６箇所づつ交互に形成されたものに限
定されるものではなく、係合体８の係合により間欠駆動
回転できるものであるならば、例えば、凹部５とスロッ
ト６とが４箇所又は５箇所づつ交互に形成されていて
も、また、凹部５とスロット６とが７箇所以上交互に形
成されていてもよい。 前記係合体８は、駆動回転体４の基体７の一側面側
に立設された固定のピンから構成して実施してもよい。 前記係合体８を、基体７の周縁部の等間隔を隔てた
二箇所以上に設けて実施してもよい。 前記カム１１の回転規制面９が、前記駆動回転体４
の係合ローラ８がゼネバ歯車２のスロット６から離脱す
る時から、前記駆動回転体４の係合ローラ８がゼネバ歯
車２の次のスロット６に係合するまでの間、離脱したス
ロット６の回転方向上手側に隣接する従動回転体（ゼネ
バ歯車）２の弧状凹部５の弧状面５Ａの円周方向長さの
半分以上と重合するように構成されているならば、この
回転規制面９の形成範囲は、第１実施形態の角度範囲
（回転軸芯を中心とするほぼ２２５度の範囲）に限定さ
れるものではない。 前記従動回転体（ゼネバ歯車）２、駆動回転体４及
び回転体としてのボール１４の材質としては、高炭素ク
ロム軸受鋼鋼材（ＳＵＪ２）に限定されるものではな
く、ステンレス鋼或いは硬質の合成樹脂等から形成して
もよい。 前記回転体１４はボールに限定されるものではな
く、環状溝１５に保持された状態で、ゼネバ歯車２の弧
状凹部５の弧状面５Ａと接当して自転並びに循環転動す
るものであるならば、コロガリ軸受の転動体に利用され
ているような円筒コロ又は球面コロ等であってもよい。 前記弧状凹部５の弧状面５Ａに、前記ガイド溝１６
が形成されていない従動回転体（ゼネバ歯車）２を用い
て実施してもよい。[Other Embodiments] As the driven rotary member (Geneva gear) 2, a concave portion 5 is provided.
The slot 5 and the slot 6 are not limited to those formed alternately at six locations. If the slot 6 can be intermittently driven and rotated by the engagement of the engagement body 8, for example, the recess 5 and the slot 6 are provided at four locations. Alternatively, the recesses 5 and the slots 6 may be alternately formed at five or more locations. The engagement body 8 may be implemented by a fixed pin erected on one side surface of the base 7 of the driving rotator 4. The engagement body 8 may be provided at two or more equally spaced intervals on the peripheral edge of the base 7. The rotation regulating surface 9 of the cam 11 is
Between the time when the engaging roller 8 is disengaged from the slot 6 of the Geneva gear 2 and the time when the engaging roller 8 of the driving rotary body 4 is engaged with the next slot 6 of the Geneva gear 2. If it is configured to overlap with at least half the circumferential length of the arcuate surface 5A of the arcuate recess 5 of the driven rotator (Geneva gear) 2 adjacent to the upper side in the rotational direction, the rotation regulating surface 9 The formation range is not limited to the angle range of the first embodiment (a range of approximately 225 degrees around the rotation axis). The material of the driven rotating body (Geneva gear) 2, the driving rotating body 4, and the ball 14 as the rotating body is not limited to high carbon chromium bearing steel (SUJ2), but may be stainless steel or hard synthetic resin. And the like. The rotating body 14 is not limited to a ball, and if it rotates and circulates in contact with the arc-shaped surface 5A of the arc-shaped recess 5 of the Geneva gear 2 while being held in the annular groove 15. For example, a cylindrical roller or a spherical roller used for a rolling element of a roller bearing may be used. The guide groove 16 is provided on the arc-shaped surface 5A of the arc-shaped recess 5.
May be carried out using a driven rotating body (Geneva gear) 2 in which is not formed.
【００２０】尚、特許請求の範囲の項に図面との対照を
便利にするために符号を記すが、該記入により本発明は
添付図面の構成に限定されるものではない。In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.
【図１】斜視図FIG. 1 is a perspective view
【図２】スロットに係合体が係合する時のゼネバ歯車機
構の正面図FIG. 2 is a front view of the Geneva gear mechanism when the engaging body is engaged with the slot.
【図３】従動回転体の間欠回転状態を示すゼネバ歯車機
構の正面図FIG. 3 is a front view of the Geneva gear mechanism showing an intermittent rotation state of the driven rotor.
【図４】スロットから係合体が離脱する時のゼネバ歯車
機構の正面図FIG. 4 is a front view of the Geneva gear mechanism when the engagement body is disengaged from the slot.
【図５】従動回転体の間欠停止状態のゼネバ歯車機構の
正面図FIG. 5 is a front view of the Geneva gear mechanism in an intermittently stopped state of the driven rotor.
【図６】図５のＶＩ−ＶＩ線断面図FIG. 6 is a sectional view taken along line VI-VI of FIG. 5;
【図７】図５のＶＩＩ−ＶＩＩ線断面図FIG. 7 is a sectional view taken along line VII-VII in FIG. 5;
【図８】第２実施形態の駆動回転体を示す正面図FIG. 8 is a front view showing a driving rotor according to a second embodiment;
【図９】第３実施形態のゼネバ歯車機構を示す正面図FIG. 9 is a front view showing a Geneva gear mechanism according to a third embodiment;
【図１０】第３実施形態における従動回転体の間欠回転
状態を示すゼネバ歯車機構の正面図FIG. 10 is a front view of a Geneva gear mechanism showing an intermittent rotation state of a driven rotor in a third embodiment.
【図１１】第３実施形態におけるスロットから係合体が
離脱する時のゼネバ歯車機構を示す正面図FIG. 11 is a front view showing a Geneva gear mechanism when an engagement body is detached from a slot in the third embodiment.
２ 従動回転体（ゼネバ歯車） ４ 駆動回転体 ５ 弧状凹部 ５Ａ 弧状面 ６ スロット ８ 係合体 ９ 回転規制面 １０ 相対回転許容面 １１ カム １４ 回転体 １５ 環状溝 １６ ガイド溝 Reference Signs List 2 driven rotating body (Geneva gear) 4 driving rotating body 5 arc-shaped concave portion 5A arc-shaped surface 6 slot 8 engaging body 9 rotation regulating surface 10 relative rotation allowing surface 11 cam 14 rotating body 15 annular groove 16 guide groove
Claims (6)
って開口するスロット（６）とを回転方向に沿って形成
してある従動回転体（２）と、該従動回転体（２）のス
ロット（６）に係合して、この従動回転体（２）を所定
角度で間欠駆動回転させる係合体（８）を備えた駆動回
転体（４）とからなるゼネバ歯車機構であって、前記駆
動回転体（４）に、前記係合体（８）がスロット（６）
から離脱した従動回転体（２）の間欠停止時に、前記従
動回転体（２）の弧状凹部（５）の弧状面（５Ａ）に沿
って相対移動する回転規制面（９）を備えたカム（１
１）を設け、このカム（１１）には、前記従動回転体
（２）の弧状凹部（５）の弧状面（５Ａ）に接当する複
数個の回転体（１４）を自転並びに循環転動自在に保持
する環状溝（１５）を形成してあるゼネバ歯車機構。1. A driven rotator (2) having an arcuate recess (5) and a slot (6) opening outward in the radial direction along the rotational direction, and the driven rotator (2). And a driving rotator (4) having an engaging member (8) for intermittently driving and rotating the driven rotator (2) at a predetermined angle by engaging with the slot (6). The engaging body (8) is provided with a slot (6) in the driving rotating body (4).
A cam (9) provided with a rotation regulating surface (9) that relatively moves along the arcuate surface (5A) of the arcuate recess (5) of the driven rotator (2) when the driven rotator (2) is separated from the motor. 1
The cam (11) is provided with a plurality of rotating bodies (14) which are in contact with the arc-shaped surface (5A) of the arc-shaped concave portion (5) of the driven rotating body (2). A Geneva gear mechanism having an annular groove (15) for holding freely.
従動回転体（２）のスロット（６）に係合するとき、前
記カム（１１）の回転規制面（９）が、従動回転体
（２）の弧状凹部（５）の弧状面（５Ａ）の円周方向長
さの半分又はそれ以上の長さに亘って近接状態で相対向
するように構成されている請求項１記載のゼネバ歯車機
構。2. When the engaging body (8) of the driving rotating body (4) engages with the slot (6) of the driven rotating body (2), the rotation regulating surface (9) of the cam (11) is 2. The driven rotary body (2) is configured to be opposed to each other in a close proximity over half or more of the circumferential length of the arc-shaped surface (5 </ b> A) of the arc-shaped recess (5) of the driven rotator (2). A Geneva gear mechanism as described.
従動回転体（２）のスロット（６）から離脱するとき、
前記カム（１１）の回転規制面（９）が、従動回転体
（２）の弧状凹部（５）の弧状面（５Ａ）の円周方向長
さの半分又はそれ以上の長さに亘って近接状態で相対向
するように構成されている請求項１又は２記載のゼネバ
歯車機構。3. When the engaging body (8) of the driving rotating body (4) disengages from the slot (6) of the driven rotating body (2),
The rotation restricting surface (9) of the cam (11) is close to and extends over half or more of the circumferential length of the arcuate surface (5A) of the arcuate recess (5) of the driven rotor (2). The Geneva gear mechanism according to claim 1, wherein the Geneva gear mechanism is configured to face each other in a state.
の弧状面（５Ａ）には、前記回転体（１４）に嵌合する
ガイド溝（１６）が形成されている請求項１、２又は３
記載のゼネバ歯車機構。4. An arc-shaped recess (5) of said driven rotor (2).
4. A guide groove (16) that fits into the rotating body (14) is formed in the arcuate surface (5A) of the first embodiment.
A Geneva gear mechanism as described.
合体（８）がスロット（６）に係合した従動回転体
（２）の間欠回転時に、前記従動回転体（２）との相対
回転を許容する相対回転許容面（１０）側においては、
前記環状溝（１５）に保持された回転体（１４）が外部
に露出しないように構成されている請求項１〜４のいず
れか１項に記載のゼネバ歯車機構。5. The intermittent rotation of the driven rotating body (2) in the peripheral surface of the cam (11), in which the engaging body (8) is engaged with the slot (6), and the driven rotating body (2) On the side of the relative rotation allowing surface (10) that allows the relative rotation of
The Geneva gear mechanism according to any one of claims 1 to 4, wherein the rotating body (14) held in the annular groove (15) is configured not to be exposed to the outside.
項１〜５のいずれか１項に記載のゼネバ歯車機構。6. The Geneva gear mechanism according to claim 1, wherein the rotating body (14) is a ball.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8030247A JP2788218B2 (en) | 1995-06-01 | 1996-02-19 | Geneva gear mechanism |
| US08/799,398 US5906134A (en) | 1996-02-19 | 1997-02-12 | Geneva drive mechanism |
| EP97102217A EP0790438B1 (en) | 1996-02-19 | 1997-02-12 | Geneva drive mechanism |
| DE69701756T DE69701756T2 (en) | 1996-02-19 | 1997-02-12 | Maltese cross gear |
| CN97102541A CN1165926A (en) | 1996-02-19 | 1997-02-19 | Maltese cross |
| KR1019970004949A KR970062410A (en) | 1996-02-19 | 1997-02-19 | Geneva gear mechanism |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17009995 | 1995-06-01 | ||
| JP7-170099 | 1995-06-01 | ||
| JP8030247A JP2788218B2 (en) | 1995-06-01 | 1996-02-19 | Geneva gear mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0949556A JPH0949556A (en) | 1997-02-18 |
| JP2788218B2 true JP2788218B2 (en) | 1998-08-20 |
Family
ID=26368567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8030247A Expired - Fee Related JP2788218B2 (en) | 1995-06-01 | 1996-02-19 | Geneva gear mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2788218B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224974A (en) * | 2018-09-27 | 2019-01-18 | 储团结 | A kind of blender for chemical color |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142027B (en) * | 2015-03-23 | 2018-12-18 | 焦作市歌馨机电设备有限公司 | Interior sheave intermittent rotary workbench |
-
1996
- 1996-02-19 JP JP8030247A patent/JP2788218B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109224974A (en) * | 2018-09-27 | 2019-01-18 | 储团结 | A kind of blender for chemical color |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0949556A (en) | 1997-02-18 |
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