JPS552862A - Thread lapping device - Google Patents

Thread lapping device

Info

Publication number
JPS552862A
JPS552862A JP735779A JP735779A JPS552862A JP S552862 A JPS552862 A JP S552862A JP 735779 A JP735779 A JP 735779A JP 735779 A JP735779 A JP 735779A JP S552862 A JPS552862 A JP S552862A
Authority
JP
Japan
Prior art keywords
worm wheel
backplate
main
interposed
aid
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
JP735779A
Other languages
Japanese (ja)
Inventor
Shunzo Inoue
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP735779A priority Critical patent/JPS552862A/en
Publication of JPS552862A publication Critical patent/JPS552862A/en
Pending legal-status Critical Current

Links

Landscapes

  • Gears, Cams (AREA)

Abstract

PURPOSE: To offer a lapping device which assures accurate positioning adjustment by eliminating backlash between a worm wheel and worm.
CONSTITUTION: An outer cylinder 1 holding a chucking shaft 2 with rotary freedom with a bearing interposed, is supported by a framing member 4 mounted on the fixed base 3 with the aid of a key 5 which assures mobile possibility only in the axial direction. This outer cylinder 1 is designed with possibility to rotate with the aid of the main worm wheel when a handle shaft 6 for fine adjustment is rotated. A backplate 9 is mounted solidly to this main worm wheel 7 with a cylindrical spacer 8 interposed, and between this backplate and the main worm wheel 7 an auxiliary worm wheel 11 shall be provided in such a way that it can rotate together with the main worm wheel 7. Two or more springs 13 are interposed between this auxiliary worm wheel 11 and backplate 9. Thus the backlash between a worm and a worm wheel can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP735779A 1979-01-25 1979-01-25 Thread lapping device Pending JPS552862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP735779A JPS552862A (en) 1979-01-25 1979-01-25 Thread lapping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP735779A JPS552862A (en) 1979-01-25 1979-01-25 Thread lapping device

Publications (1)

Publication Number Publication Date
JPS552862A true JPS552862A (en) 1980-01-10

Family

ID=11663701

Family Applications (1)

Application Number Title Priority Date Filing Date
JP735779A Pending JPS552862A (en) 1979-01-25 1979-01-25 Thread lapping device

Country Status (1)

Country Link
JP (1) JPS552862A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100774972B1 (en) 2006-08-08 2007-11-13 안태영 Spacing prevention device for spindle lifting screw jack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100774972B1 (en) 2006-08-08 2007-11-13 안태영 Spacing prevention device for spindle lifting screw jack

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