JPH0225778U - - Google Patents
Info
- Publication number
- JPH0225778U JPH0225778U JP10393888U JP10393888U JPH0225778U JP H0225778 U JPH0225778 U JP H0225778U JP 10393888 U JP10393888 U JP 10393888U JP 10393888 U JP10393888 U JP 10393888U JP H0225778 U JPH0225778 U JP H0225778U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- cylindrical cam
- groove
- shaft
- cylindrical
- 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
- 230000002093 peripheral effect Effects 0.000 claims 2
- 230000004323 axial length Effects 0.000 claims 1
Landscapes
- Lift Valve (AREA)
- Mechanically-Actuated Valves (AREA)
Description
第１図は本考案に係る駆動機構の一実施例を示
し、同図イは要部正面断面図、同図ロは同時イの
Ｘ―Ｘ線断面図、同図ハは同図イのＹ―Ｙ線断面
図。第２図は円筒カムの一実施例を示す斜視図。
第３図は動作状態を示す要部断面図。第４図はバ
タフライ弁の駆動機構として使用する状態を示す
断面図。第５図は従来例を示す断面図。
１…ケーシング、３…円筒カム、４…駆動対象
軸、５…固定カムフオロア、６…操作軸、１０…
ネジ軸部、１１…ネジ体、１２…カムフオロア。
FIG. 1 shows an embodiment of the drive mechanism according to the present invention, in which A is a front cross-sectional view of the main part, B is a cross-sectional view taken along line X--X in A, and C is a cross-sectional view along the -Y-line sectional view. FIG. 2 is a perspective view showing an embodiment of the cylindrical cam.
FIG. 3 is a sectional view of main parts showing the operating state. FIG. 4 is a sectional view showing a state in which the butterfly valve is used as a drive mechanism. FIG. 5 is a sectional view showing a conventional example. DESCRIPTION OF SYMBOLS 1...Casing, 3...Cylindrical cam, 4...Axle to be driven, 5...Fixed cam follower, 6...Operation shaft, 10...
Screw shaft portion, 11...screw body, 12...cam follower.
Claims (1)
周壁部に螺旋状のカム溝Ａを形成してなる円筒カ
ム３と、該円筒カム３をその軸長方向と外周方向
に摺動可能に嵌入保持するケーシング１と、前記
円筒カム３内に挿入されて該円筒カム３内に位置
する部位にネジ軸部１０が形成されてなる回転操
作自在な操作軸６と、該操作軸６のネジ軸部１０
に螺合装着されて操作軸６の回転動作により円筒
カム３の軸長方向に沿つてねじ送りされるべく回
転止め状態に設けられたネジ体１１と、該ネジ体
１１に取付けられて前記円筒カム３の螺旋状カム
溝Ａに係入されたカムフオロア１２とからなり、
しかも前記円筒カム３の周壁部には、円筒カム３
の軸長方向に沿う縦溝部Ｂａと外周方向に沿う横
溝部Ｂｂとを連設した略Ｌ字状のカム溝Ｂが別途
設けられて、該カム溝Ｂには、横溝部Ｂｂとの係
合時に円筒カム３の前後動を阻止して回転を可能
とし且つ縦溝部Ｂａとの係合時に円筒カム３の回
転を阻止して前後動を可能とする固定カムフオロ
ア５が係入されてなることを特徴とする弁軸等の
軸の回転及び往復駆動機構。 A cylindrical cam 3 whose one end side is connected to a shaft 4 to be driven and which has a spiral cam groove A formed in the peripheral wall, and the cylindrical cam 3 is slidably fitted in the axial direction and the outer circumferential direction. A holding casing 1, an operating shaft 6 that is inserted into the cylindrical cam 3 and has a threaded shaft portion 10 formed at a portion located within the cylindrical cam 3 and can be rotated freely, and a threaded shaft of the operating shaft 6. Part 10
A screw body 11 is screwed into the cylindrical cam 3 and is provided in a non-rotating state so as to be threaded along the axial direction of the cylindrical cam 3 by the rotational movement of the operation shaft 6; It consists of a cam follower 12 engaged in a spiral cam groove A of the cam 3,
Moreover, the cylindrical cam 3 is provided on the peripheral wall of the cylindrical cam 3.
A substantially L-shaped cam groove B is separately provided, in which a longitudinal groove part Ba along the axial length direction and a lateral groove part Bb along the outer circumferential direction are connected, and the cam groove B has a groove that engages with the lateral groove part Bb. A fixed cam follower 5 is engaged, which prevents the cylindrical cam 3 from moving back and forth when it engages with the vertical groove part Ba and allows it to rotate. Features a rotation and reciprocating drive mechanism for shafts such as valve shafts.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10393888U JPH0547330Y2 (en) | 1988-08-05 | 1988-08-05 | |
| DE68917661T DE68917661T2 (en) | 1988-08-05 | 1989-04-28 | Flap valve and actuator for the rotary movement and up and down movement of the flap. |
| EP89810320A EP0354171B1 (en) | 1988-08-05 | 1989-04-28 | Butterfly valve and drive mechanism for rotation and reciprocation of the butterfly valve |
| CA000600959A CA1320477C (en) | 1988-08-05 | 1989-05-29 | Butterfly valve and drive mechanism for rotation and reciprocation of valve stem of the butterfly valve |
| US07/389,876 US5108073A (en) | 1988-08-05 | 1989-08-04 | Butterfly valve and drive mechanism for rotation and reciprocation of valve stem of the butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10393888U JPH0547330Y2 (en) | 1988-08-05 | 1988-08-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0225778U true JPH0225778U (en) | 1990-02-20 |
| JPH0547330Y2 JPH0547330Y2 (en) | 1993-12-13 |
Family
ID=31335214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10393888U Expired - Lifetime JPH0547330Y2 (en) | 1988-08-05 | 1988-08-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547330Y2 (en) |
-
1988
- 1988-08-05 JP JP10393888U patent/JPH0547330Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0547330Y2 (en) | 1993-12-13 |
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