FR2441456A1 - Production of shock absorber piston rings - takes contiguous drawn steel coil spring cuts axial to separate individual coils - Google Patents

Production of shock absorber piston rings - takes contiguous drawn steel coil spring cuts axial to separate individual coils

Info

Publication number
FR2441456A1
FR2441456A1 FR7832643A FR7832643A FR2441456A1 FR 2441456 A1 FR2441456 A1 FR 2441456A1 FR 7832643 A FR7832643 A FR 7832643A FR 7832643 A FR7832643 A FR 7832643A FR 2441456 A1 FR2441456 A1 FR 2441456A1
Authority
FR
France
Prior art keywords
contiguous
mandrel
coil spring
piston rings
drawn steel
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.)
Withdrawn
Application number
FR7832643A
Other languages
French (fr)
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 FR7832643A priority Critical patent/FR2441456A1/en
Publication of FR2441456A1 publication Critical patent/FR2441456A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/06—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass piston rings from one piece

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Abstract

The prodn. of piston rings for whock absorbers entails the longitudinal cutting of a helically wound coil spring and separating the consecutive coils to obtain individual rings. The spings is of rectangular section drawn steel sire with rounded corners, is contiguous, with no gap between coils, and is cut on a line parallel to the axis of revolution. The cutter machine has a cylindrical mandrel (3) and a straight blade (5) in a radial plane, the mandrel having a berrel groove (4) parallel to its longitudinal axis, and the blade aligning opposite the groove with its cutting edge nominally inclined (alpha) to the mandrel axis. The spring (2) is threaded onto the mandrel (3), the blade (4) then descending into the groove (5) to effect a progressive cut.
FR7832643A 1978-11-20 1978-11-20 Production of shock absorber piston rings - takes contiguous drawn steel coil spring cuts axial to separate individual coils Withdrawn FR2441456A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7832643A FR2441456A1 (en) 1978-11-20 1978-11-20 Production of shock absorber piston rings - takes contiguous drawn steel coil spring cuts axial to separate individual coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7832643A FR2441456A1 (en) 1978-11-20 1978-11-20 Production of shock absorber piston rings - takes contiguous drawn steel coil spring cuts axial to separate individual coils

Publications (1)

Publication Number Publication Date
FR2441456A1 true FR2441456A1 (en) 1980-06-13

Family

ID=9215065

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7832643A Withdrawn FR2441456A1 (en) 1978-11-20 1978-11-20 Production of shock absorber piston rings - takes contiguous drawn steel coil spring cuts axial to separate individual coils

Country Status (1)

Country Link
FR (1) FR2441456A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104289871A (en) * 2014-09-16 2015-01-21 萍乡市德博科技发展有限公司 Method for machining sealing rings
CN104289862A (en) * 2013-07-15 2015-01-21 斯沃奇集团管理服务股份公司 Method for manufacturing bracelet links

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR458794A (en) * 1913-06-03 1913-10-18 Charles White Rings for piston linings, their manufacturing process and apparatus for carrying out this process
FR863379A (en) * 1940-02-12 1941-03-31 Method for manufacturing left segments with wide apart ends and segment obtained by this method
US3783478A (en) * 1972-04-26 1974-01-08 F Osterhout Hand tool for use in making tufted yard goods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR458794A (en) * 1913-06-03 1913-10-18 Charles White Rings for piston linings, their manufacturing process and apparatus for carrying out this process
FR863379A (en) * 1940-02-12 1941-03-31 Method for manufacturing left segments with wide apart ends and segment obtained by this method
US3783478A (en) * 1972-04-26 1974-01-08 F Osterhout Hand tool for use in making tufted yard goods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104289862A (en) * 2013-07-15 2015-01-21 斯沃奇集团管理服务股份公司 Method for manufacturing bracelet links
CN104289871A (en) * 2014-09-16 2015-01-21 萍乡市德博科技发展有限公司 Method for machining sealing rings

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Legal Events

Date Code Title Description
ST Notification of lapse