JPS5592232A - Forming method of spiral wrap - Google Patents

Forming method of spiral wrap

Info

Publication number
JPS5592232A
JPS5592232A JP24779A JP24779A JPS5592232A JP S5592232 A JPS5592232 A JP S5592232A JP 24779 A JP24779 A JP 24779A JP 24779 A JP24779 A JP 24779A JP S5592232 A JPS5592232 A JP S5592232A
Authority
JP
Japan
Prior art keywords
snakes
larger
strip plate
radius
spring
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
JP24779A
Other languages
Japanese (ja)
Inventor
Hiroya Murakami
Keiichi Nakamura
Masanobu Ueda
Mitsunari Kamata
Masaru Kobayashi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP24779A priority Critical patent/JPS5592232A/en
Publication of JPS5592232A publication Critical patent/JPS5592232A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To form the high accuracy wraps of an equal pitch in the radial direction with ease and high efficiency by using the snakes of varying curvatures and widths in the lengthwise direction.
CONSTITUTION: Snakes 13 comprise connecting the snake pieces 13' which vary in radius r of curvature and width b in the lengthwise direction and whose width b becomes narrower as the radius r of curvature becomes larger, by means of links 16. After a strip plate 14 is fitted to the end 15 of the sankes 13, the snakes 13 are rotated about the leading end 15. At this time, the radial pitch of the strip plate becomes smaller as the diameter is larger. If after this the snakes 13 are moved in the direction perpendicular to the plane of the figure and are detached from the strip plate, then spring-back occurs in the strip plate but this spring-back amount is larger as the diameter is larger and therefore the spiral wraps of an equal pitch in the radial direction are formed.
COPYRIGHT: (C)1980,JPO&Japio
JP24779A 1979-01-08 1979-01-08 Forming method of spiral wrap Pending JPS5592232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24779A JPS5592232A (en) 1979-01-08 1979-01-08 Forming method of spiral wrap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24779A JPS5592232A (en) 1979-01-08 1979-01-08 Forming method of spiral wrap

Publications (1)

Publication Number Publication Date
JPS5592232A true JPS5592232A (en) 1980-07-12

Family

ID=11468613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24779A Pending JPS5592232A (en) 1979-01-08 1979-01-08 Forming method of spiral wrap

Country Status (1)

Country Link
JP (1) JPS5592232A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190726A (en) * 1981-05-20 1982-11-24 Sanden Corp Method and apparatus for working scroll member

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57190726A (en) * 1981-05-20 1982-11-24 Sanden Corp Method and apparatus for working scroll member

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