JPS6487961A - Variable pitch screw thread feeding mechanism - Google Patents

Variable pitch screw thread feeding mechanism

Info

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
Application number
JP24700087A
Other languages
Japanese (ja)
Inventor
Tadashi Ozeki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP24700087A priority Critical patent/JPS6487961A/en
Publication of JPS6487961A publication Critical patent/JPS6487961A/en
Pending legal-status Critical Current

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  • 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.
JP24700087A 1987-09-30 1987-09-30 Variable pitch screw thread feeding mechanism Pending JPS6487961A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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