JPH0221023A - Geneva stop - Google Patents
Geneva stopInfo
- Publication number
- JPH0221023A JPH0221023A JP17161988A JP17161988A JPH0221023A JP H0221023 A JPH0221023 A JP H0221023A JP 17161988 A JP17161988 A JP 17161988A JP 17161988 A JP17161988 A JP 17161988A JP H0221023 A JPH0221023 A JP H0221023A
- Authority
- JP
- Japan
- Prior art keywords
- cam
- groove
- floor
- cam floor
- driven shaft
- 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
- 230000033001 locomotion Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Landscapes
- Support Of The Bearing (AREA)
- Transmission Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は駆動軸の連続的な回転動力を従動軸に対して間
欠的な回転動力として変換して伝えるゼネバストップに
関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a Geneva stop that converts continuous rotational power of a drive shaft into intermittent rotational power and transmits the same to a driven shaft.
（従来の技術）
−ｉにゼネバストップは第７図に示すように、カム板（
４）に放射状に形成した溝（３Ｈ３）・・・に対して、
駆動軸（１）の周りで公転運動するカムフロア−（２）
を一定の時間間隔で係合し、前記カムフロアー（２）が
前記溝（３）に係合している時間に対応する角度分だけ
従動軸（５）を回転するようにしたものである。(Prior art) -i, the Geneva stop has a cam plate (
4) For the grooves (3H3) formed radially,
Cam floor (2) that revolves around the drive shaft (1)
are engaged at regular time intervals, and the driven shaft (5) is rotated by an angle corresponding to the time during which the cam floor (2) is engaged with the groove (3).
（発明が解決しようとする課題）
かかる従来のゼネバストップでは、カムフロア−（２）
が溝（３）から離れた瞬間、従動輪（５）に連結した加
工機械の慣性のためにカム板（４）は回転を継続しよう
とする傾向があるため、カムフロア−（２）が溝（３）
から離れると同時に係合するロック要素（６）とカム板
のロック面（７）との間に衝撃が起こり、長期間の使用
によりロック要素（６）及びロック面（７）のそれぞれ
のコーナーが摩滅して、動力の伝達精度が徐々に低下す
る欠点があった。(Problem to be solved by the invention) In such a conventional Geneva stop, the cam floor (2)
As soon as the cam plate (4) leaves the groove (3), the cam plate (4) tends to continue rotating due to the inertia of the processing machine connected to the driven wheel (5). 3)
An impact occurs between the locking element (6) and the locking surface (7) of the cam plate, which are engaged at the same time as they are separated from each other, and the respective corners of the locking element (6) and the locking surface (7) are damaged by long-term use. There was a drawback that the power transmission accuracy gradually deteriorated due to wear and tear.
本発明は上記の点に鑑み、カムフロア−が溝から離れた
直後のカム板の遊動を阻止する要素を設けて、駆動軸に
設けたロック要素とカム板のロック面とが衝突するのを
防止せしめるようにしたものである。In view of the above points, the present invention provides an element that prevents the cam plate from floating immediately after the cam floor leaves the groove, thereby preventing the locking element provided on the drive shaft from colliding with the locking surface of the cam plate. It was designed to encourage them.
（課題を解決するための手段）
本発明を具体的に説明すると、駆動軸（１０）にアーム
（１４）を介して設け且つ前記駆動軸でもって回転する
カムフロア−（１１）をカム板（１９）に形成した溝（
１６）に断続的に係合させ、前記カムフロア−（１１）
が溝（１６）に係合している時間に対応する角度分だけ
、前記カム板に連結した従動輪（２０）を回転させるよ
うにしたゼネバストップにおいて、前記の第１のカムフ
ロア−（１１）の回転方向に向かって該カムフロア−の
後方に若干の角度をずらせて、前記駆動軸（１０）に連
結するように第２カムフロア−（１２）を設ける一方、
前記の第１の溝（１６）を形成したカム面とは異なる第
２のカム面（２６）を前記従動輪（２０）に固定すると
共に、該第２のカム面に第２溝（１８）（１８）・・・
を形成し、前記の第１カムフロア−（１１）を追う第２
カムフロア−（１２）が第１溝（１６）に係合する第１
カムフロア−（１１）よりも遅れて第２溝（１８）に係
合するようにし、さらに第１カムフロア−（１１）によ
って回転させられる従動軸（２０）の動きに第２カムフ
ロア−（１２）が干渉しないように、該第２カムフロア
−（１２）の軌跡に沿うように前記の第２溝（１８）の
形状を設定すると共に、第１カムフロア−（１１）が第
１溝（１６）から離れたあと、第２カムフロア−（１２
）によって従動軸（２０）が回転することがないように
、第２溝（１８）の出口部分の形状を第２カムフロア−
（１２）の回転軌道に沿うような形にしたものである。(Means for Solving the Problems) To specifically describe the present invention, a cam floor (11) is provided on a drive shaft (10) via an arm (14) and rotated by the drive shaft, and a cam plate (19) is connected to the cam floor (11). ) groove formed in (
16) intermittently engaged with the cam floor (11).
In the Geneva stop, the driven wheel (20) connected to the cam plate is rotated by an angle corresponding to the time during which the first cam floor (11) is engaged with the groove (16). A second cam floor (12) is provided so as to be connected to the drive shaft (10) by being slightly angularly shifted to the rear of the cam floor in the direction of rotation of the second cam floor (12);
A second cam surface (26) different from the cam surface on which the first groove (16) is formed is fixed to the driven wheel (20), and a second groove (18) is formed on the second cam surface. (18)...
and a second cam floor following the first cam floor (11).
The cam floor (12) engages the first groove (16).
The second cam floor (12) is configured to engage with the second groove (18) later than the cam floor (11), and the second cam floor (12) is caused to engage with the movement of the driven shaft (20) rotated by the first cam floor (11). In order to avoid interference, the shape of the second groove (18) is set so as to follow the trajectory of the second cam floor (12), and the first cam floor (11) is set apart from the first groove (16). After that, the second cam floor (12
) to prevent the driven shaft (20) from rotating due to the second cam floor.
It is shaped to follow the rotational trajectory of (12).
（作用）
駆動軸（１０）によって回転する第１のカムフロア−（
１１）はカム板（１９）に形成した第１の溝（１６）
（１６）・・・に断続的に係合し、前記カム板を固定し
た従動軸（２０）を間欠的に回転させるが、前記第１の
カムフロア−（１１）に追従する第２カムフロア−（１
２）も前記の第１のカムフロア−（１１）を形成したカ
ム面とは異なるカム面に形成した第２の溝（１８）に遅
れて係合する。この場合、第１のカムフロア−によって
回転させられる従動軸（２０）の動きに第２のカムフロ
ア−（１２）が干渉しないように、該第２カムフロア−
の軌跡に沿うように前記の第２の溝（１８）が形成され
ているから、結局、従動軸（２０）は第１のカムフロア
−（１１）によってスムーズに動かされる。そして第１
のカムフロア−（１１）が第１の溝（１６）から離れた
あと、しばらくは第２のカムフロア−（１２）が第２の
溝（１８）の中を移動することになるが、第２溝（１８
）の出口部分は第２のカムフロア−（１２）の回転軌道
に沿うような形状に形成されているので、第１カムフロ
ア−（１１）が第１溝（１６）から離れた直後の従動輪
（２０）に働く慣性は第２カムフロア−（１２）によっ
て阻止され、そのあと第２カムフロア−（１２）は第２
溝（１８）から離れるのである。(Function) The first cam floor rotated by the drive shaft (10) (
11) is the first groove (16) formed in the cam plate (19)
(16)... The driven shaft (20) to which the cam plate is fixed is intermittently rotated, but the second cam floor (11) follows the first cam floor (11). 1
2) also engages with a delay in a second groove (18) formed on a cam surface different from the cam surface on which the first cam floor (11) is formed. In this case, the second cam floor (12) is designed to prevent the second cam floor (12) from interfering with the movement of the driven shaft (20) rotated by the first cam floor.
Since the second groove (18) is formed along the locus of the second groove (18), the driven shaft (20) can be smoothly moved by the first cam floor (11). and the first
After the cam floor (11) is separated from the first groove (16), the second cam floor (12) will move in the second groove (18) for a while. (18
) is formed in a shape that follows the rotational trajectory of the second cam floor (12), so that the exit portion of the driven wheel ( The inertia acting on the second cam floor (12) is blocked by the second cam floor (12), and then the second cam floor (12)
It leaves the groove (18).
（実施例）
第１図及び第３図に示すように、駆動軸（１０）には周
面一部を切り欠いた円形のロック要素（１３）を固定し
、該ロック要素（１３）の上下にそれぞれ２枚のアーム
（１４）（１５）を回転方向に若干角度をずらして設け
ると共に、−側のアーム（１４）の先端下面に第１カム
フロア−（１１）を、他側のアーム（１５）の先端上面
に第２カムフロア−（１２）をそれぞれ設け、第１カム
フロア−（１１）に対して第２カムフロア−（１２）が
追従するような型にしている。(Example) As shown in FIGS. 1 and 3, a circular locking element (13) with a part of the circumferential surface cut out is fixed to the drive shaft (10), and the upper and lower portions of the locking element (13) are Two arms (14) and (15) are provided on each of the arms (14) and (15) at slightly different angles in the direction of rotation, and a first cam floor (11) is provided on the lower surface of the tip of the arm (14) on the negative side, and ) are each provided with a second cam floor (12) on the upper surface of the tip thereof, and are shaped so that the second cam floor (12) follows the first cam floor (11).
一方、従動輪（２０）には前記ロック要素（１３）と隣
接する状態でカム板（１９）を設け、該カム板の上面（
２５）に４個の略Ｕ字形をした第１溝（１６） （１６
） （１６）（１６）を形成すると共に、カム板（１９
）の周面の４ケ所に円孤形に窪んだロック面（１７）
（１７） （１７） （１７）を形成し、該ロック面（
１７）に前記のロック要素（１３，）の円弧部が摺動す
るようにしている。また第２図に示した透視図に表わす
ようにカム板（１９）の下面（２６）には４個の第２溝
（１８） （１８） （１Ｂ） （１８）を形成してい
る。On the other hand, the driven wheel (20) is provided with a cam plate (19) adjacent to the locking element (13), and the upper surface of the cam plate (
25) has four approximately U-shaped first grooves (16) (16
) (16) (16) and the cam plate (19
) Lock surface (17) with arc-shaped recesses at four places on the circumferential surface
(17) (17) (17) and the locking surface (
17), the circular arc portion of the locking element (13,) slides on the locking element (13,). Further, as shown in the perspective view shown in FIG. 2, four second grooves (18) (18) (1B) (18) are formed on the lower surface (26) of the cam plate (19).
第２図において、駆動軸（１０）は連続回転して第１カ
ムフロア−（１１）を真円軌道（３０）上で矢印の方向
に公転させ、該第１カムフロア−（１１）が第１溝（１
６） （１Ｂ）・・・に係合している間、従動軸（２０
）を回転させる。一方、第２カムフロア−（１２）は前
記の第１カムフロア−（１１）を追うように真円軌道（
３０）上を公転し、第１カムフロア−（１１）が第１溝
（１６）に係合したすぐあとに第２溝（１８）内に誘導
される。In FIG. 2, the drive shaft (10) continuously rotates to revolve the first cam floor (11) in the direction of the arrow on a perfect circular orbit (30), and the first cam floor (11) is in the first groove. (1
6) While engaged with (1B)..., the driven shaft (20
). On the other hand, the second cam floor (12) follows the first cam floor (11) in a perfect circular orbit (
30) and is guided into the second groove (18) immediately after the first cam floor (11) engages the first groove (16).
第１溝（１６）は従動軸（２０）の運動特性を改良する
ために略Ｕ字形に形成しており、第１カムフロア−（１
１）が第１溝（１６）に沿って進みカム板（１９）を回
転させるとき、該カム板（１９）の回転を第２カムフロ
ア−（１２）が干渉しないように、第２溝（１８）は第
２カムフロア−（１２）の回転軌跡に沿うような形に形
成している。このためカム板（１９）は第１カムフロア
−（１１）によって軽快に動かされる。ただ第１カムフ
ロア−（１１）が第１溝（１６）のＵターン部分に到達
したとき、第１カムフロア−（１１）と第１溝（１６）
との間に隙間が生じ、第１カムフロア−（１１）はこの
部分でわずかに遊動するが、この瞬間だけ第２カムフロ
ア−（１２）は第２溝（１８）を介してカム板（１９）
を停止させることなく回転させるように助勢する。従っ
てこの一瞬間だけ第２カムフロア−（１２）はカム板（
１９）の動きを干渉することになるが、カム板の全体的
な動きからみると干渉というほどには当たらない。その
後、第１カムフロア−（１１）が第１溝（１６）から離
れるが、第２溝（１８）の出口部分のＡの範囲は第２カ
ムフロア−（１２）の公転軌道（３０）に沿った形状に
形成されているから、カム板（１９）の回転は第２カム
フロア−（１２）によって止められ、その市と第２カム
フロア−（１２）は第２溝（１８）から離れる。The first groove (16) is formed into a substantially U-shape in order to improve the motion characteristics of the driven shaft (20), and the first cam floor (16)
1) advances along the first groove (16) and rotates the cam plate (19), the second cam floor (12) is inserted into the second groove (18) so that the second cam floor (12) does not interfere with the rotation of the cam plate (19). ) is formed in a shape that follows the rotation locus of the second cam floor (12). Therefore, the cam plate (19) is easily moved by the first cam floor (11). However, when the first cam floor (11) reaches the U-turn part of the first groove (16), the first cam floor (11) and the first groove (16)
A gap is created between the first cam floor (11) and the first cam floor (11), which moves slightly in this area, but only at this moment, the second cam floor (12) passes through the second groove (18) to the cam plate (19).
To help rotate without stopping. Therefore, for just this moment, the second cam floor (12) is moved to the cam plate (
19), but it does not interfere to the extent that it interferes with the overall movement of the cam plate. After that, the first cam floor (11) separates from the first groove (16), but the range A of the exit part of the second groove (18) remains along the orbit (30) of the second cam floor (12). Due to the shape, the rotation of the cam plate (19) is stopped by the second cam floor (12), and the second cam floor (12) is separated from the second groove (18).
なお第４図及び第５図は、従動軸（２０）に固定したカ
ム板（１９）の第１溝（１６）を形成した面（２５）と
は異なる面（２６）に第２溝（１８）を形成した実施例
である。またカム板（１９）における第１溝（１６）の
形状は求めようとする運動に応じて形成され、この第１
溝（１６）の形に応じて第２溝（１８）の形状が定めら
れるのでおる。さらに第６図は第１溝（１６）を−船釣
な運動特性のあまりよくない直線的な場合の実施例で、
この場合の第２溝（１８）は図示のような形状になる。4 and 5 show that the second groove (18) is formed on a surface (26) different from the surface (25) on which the first groove (16) is formed of the cam plate (19) fixed to the driven shaft (20). ) is formed. Further, the shape of the first groove (16) in the cam plate (19) is formed according to the movement to be obtained, and the shape of the first groove (16) is formed according to the movement to be obtained.
The shape of the second groove (18) is determined depending on the shape of the groove (16). Furthermore, FIG. 6 shows an example in which the first groove (16) is linear, and the motion characteristics of boat fishing are not very good.
The second groove (18) in this case has a shape as shown in the figure.
（効果）
本発明は駆動軸おける第１カムフロア−に対して第２カ
ムフロア−を追従する関係に設定する一方、カム板にお
いて前記第１カムフロア−が係合する第１溝の形状に応
じて、前記第２カムフロア−を誘導する第２溝を形成し
、第１カロフロアーが第１溝から離れたあと、第２溝に
係合している第２カムフロア−によってカム板が回転す
ることがないように、第２溝の出口部分の形状を第２カ
ムフロア−の回転軌道に沿う形にしたので、第１カムフ
ロア−が第１溝から離れたあとは第２カムフロア−によ
ってカム板の回転を停止ざぜ、従動軸の慣性をなくすこ
とができる。このため第１カムフロア−が第１溝から離
れたあと、第２カムフロア−が第２溝から離れるまでに
カム板に対してロックを動かせればよく、従って駆動軸
のロック要素とカム板のロック面とをわずかの時間内に
係合しなければならない従来例に比べて、いつまでも回
転精度が低下しない効果がある。(Effects) In the present invention, the second cam floor is set in a following relationship with the first cam floor on the drive shaft, and depending on the shape of the first groove in the cam plate with which the first cam floor engages, A second groove is formed to guide the second cam floor, and after the first caro floor is separated from the first groove, the cam plate is not rotated by the second cam floor that is engaged with the second groove. Since the shape of the exit part of the second groove is made to follow the rotational trajectory of the second cam floor, the rotation of the cam plate is stopped by the second cam floor after the first cam floor leaves the first groove. In other words, the inertia of the driven shaft can be eliminated. For this reason, it is only necessary to move the lock relative to the cam plate after the first cam floor leaves the first groove and before the second cam floor leaves the second groove, and therefore the lock element of the drive shaft and the cam plate can be locked. Compared to the conventional example in which the surface must be engaged within a short period of time, there is an effect that the rotation accuracy does not deteriorate forever.
第１図は本発明の実施例を示す平面図、第２図は前回を
透視した簡略図、第３図は部分的な側面図、第４図ない
し第６図は他の実施例の説明図、第７図は従来例の説明
図である。
（１０）・・・駆動軸、 （１１）・・・第１カムフロ
ア−、（１２）・・・第２カムフロア−、（１Ｂ）・・
・第１溝、 （１８）・・・第２溝、 （１９）・・・
カム板、 （２０）・・・従動輪。
第
／７
図
第
図Fig. 1 is a plan view showing an embodiment of the present invention, Fig. 2 is a simplified diagram of the previous embodiment, Fig. 3 is a partial side view, and Figs. 4 to 6 are explanatory diagrams of other embodiments. , FIG. 7 is an explanatory diagram of a conventional example. (10)...Drive shaft, (11)...First cam floor, (12)...Second cam floor, (1B)...
・First groove, (18)...Second groove, (19)...
Cam plate, (20)...driven wheel. Figure /7 Figure
Claims (1)
駆動軸でもって回転するカムフロアー（１１）をカム板
（１９）に形成した溝（１６）に断続的に係合させ、前
記カムフロアー（１１）が溝（１６）に係合している時
間に対応する角度分だけ、前記カム板に連結した従動軸
（２０）を回転させるようにしたゼネバストツプにおい
て、前記の第１のカムフロアー（１１）の回転方向に向
かって該カムフロアーの後方に若干の角度をずらせて、
前記駆動軸（１０）に連結するように第２カムフロアー
（１２）を設ける一方、前記の第１の溝（１６）を形成
したカム面とは異なる第２のカム面（２６）を前記従動
軸（２０）に固定すると共に、該第２のカム面に第２溝
（１８）（１８）・・・を形成し、前記の第１カムフロ
アー（１１）を追う第２カムフロアー（１２）が第１溝
（１６）に係合する第１カムフロアー（１１）よりも遅
れて第２溝（１８）に係合するようにし、さらに第１カ
ムフロアー（１１）によって回転させられる従動軸（２
０）の動きに第２カムフロアー（１２）が干渉しないよ
うに、該第２カムフロアー（１２）の軌跡に沿うように
前記の第２溝（１８）の形状を設定すると共に、第１カ
ムフロアー（１１）が第１溝（１６）から離れたあと、
第２カムフロアー（１２）によつて従動軸（２０）が回
転することがないように、第２溝（１８）の出口部分の
形状を第２カムフロアー（１２）の回転軌道に沿うよう
な形にしたことを特徴とするゼネバストツプ。A cam floor (11) provided on the drive shaft (10) via an arm (14) and rotated by the drive shaft is intermittently engaged with a groove (16) formed in the cam plate (19), In the Geneva stop, the driven shaft (20) connected to the cam plate is rotated by an angle corresponding to the time during which the floor (11) is engaged with the groove (16), and the first cam floor (11) A slight angle is shifted toward the rear of the cam floor in the direction of rotation,
A second cam floor (12) is provided so as to be connected to the drive shaft (10), while a second cam surface (26) different from the cam surface on which the first groove (16) is formed is connected to the driven shaft. A second cam floor (12) fixed to the shaft (20) and having second grooves (18) (18) formed in the second cam surface to follow the first cam floor (11). engages with the second groove (18) later than the first cam floor (11) which engages with the first groove (16), and furthermore, the driven shaft ( 2
The shape of the second groove (18) is set to follow the trajectory of the second cam floor (12) so that the second cam floor (12) does not interfere with the movement of the first cam After the floor (11) leaves the first groove (16),
In order to prevent the driven shaft (20) from rotating due to the second cam floor (12), the shape of the exit portion of the second groove (18) is shaped to follow the rotation trajectory of the second cam floor (12). Geneva stop is characterized by its shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171619A JP2855202B2 (en) | 1988-07-09 | 1988-07-09 | Geneva Top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171619A JP2855202B2 (en) | 1988-07-09 | 1988-07-09 | Geneva Top |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0221023A true JPH0221023A (en) | 1990-01-24 |
| JP2855202B2 JP2855202B2 (en) | 1999-02-10 |
Family
ID=15926531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63171619A Expired - Fee Related JP2855202B2 (en) | 1988-07-09 | 1988-07-09 | Geneva Top |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2855202B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195852A (en) * | 1991-11-18 | 1993-03-23 | Malugani Jack R | Vacuum pick-up nozzle with air boost manifold |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535473A (en) * | 1976-07-06 | 1978-01-19 | Tsubakimoto Chain Co | Intermittent rotation causing device |
-
1988
- 1988-07-09 JP JP63171619A patent/JP2855202B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535473A (en) * | 1976-07-06 | 1978-01-19 | Tsubakimoto Chain Co | Intermittent rotation causing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195852A (en) * | 1991-11-18 | 1993-03-23 | Malugani Jack R | Vacuum pick-up nozzle with air boost manifold |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2855202B2 (en) | 1999-02-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |