JPS6487961A - Variable pitch screw thread feeding mechanism - Google Patents
Variable pitch screw thread feeding mechanismInfo
- Publication number
- JPS6487961A JPS6487961A JP24700087A JP24700087A JPS6487961A JP S6487961 A JPS6487961 A JP S6487961A JP 24700087 A JP24700087 A JP 24700087A JP 24700087 A JP24700087 A JP 24700087A JP S6487961 A JPS6487961 A JP S6487961A
- Authority
- JP
- Japan
- Prior art keywords
- plug body
- axial direction
- coil springs
- flexed
- case
- 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.)
- Pending
Links
Landscapes
- Transmission Devices (AREA)
Abstract
PURPOSE:To enable a lead amount to be arbitrarily adjusted by arranging two coil springs overlapping together in the axial direction mutually in a space part of wire rods of the coil spring and, when one of the coil springs is flexed in the axial direction, enabling the other to be flexed while holding one of the coil springs rotatably to the other. CONSTITUTION:Fixing a case 2 and a shaft 17, when a plug body 22 is rotated, both coil springs 3, 15 are flexed in the axial direction in accordance with the direction of rotation, changing their pitch. For instance, in case of the plug body 22 providing a right hand thread in its thread part, when the plug body 22 is rotated in a right turn, increasing a fitting length of the plug body 22 for the case 2 and pressing the coil spring 3 by that amount of increase, it contracts with the coil spring 15, decreasing a pitch. A lead amount for rotation of the shaft 17, that is, a moving distance in the axial direction decreases. Accordingly, by turning the plug body 22, the lead amount for a rotary angle can be arbitrarily adjusted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24700087A JPS6487961A (en) | 1987-09-30 | 1987-09-30 | Variable pitch screw thread feeding mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24700087A JPS6487961A (en) | 1987-09-30 | 1987-09-30 | Variable pitch screw thread feeding mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6487961A true JPS6487961A (en) | 1989-04-03 |
Family
ID=17156884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24700087A Pending JPS6487961A (en) | 1987-09-30 | 1987-09-30 | Variable pitch screw thread feeding mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6487961A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01109644U (en) * | 1988-01-18 | 1989-07-25 | ||
JP2007321858A (en) * | 2006-05-31 | 2007-12-13 | Topura Co Ltd | Screw fastening structure and screw component |
JP2012154446A (en) * | 2011-01-27 | 2012-08-16 | Ckd Corp | Actuator |
-
1987
- 1987-09-30 JP JP24700087A patent/JPS6487961A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01109644U (en) * | 1988-01-18 | 1989-07-25 | ||
JP2007321858A (en) * | 2006-05-31 | 2007-12-13 | Topura Co Ltd | Screw fastening structure and screw component |
JP2012154446A (en) * | 2011-01-27 | 2012-08-16 | Ckd Corp | Actuator |
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