FR2393198B1 - - Google Patents

Info

Publication number
FR2393198B1
FR2393198B1 FR7739694A FR7739694A FR2393198B1 FR 2393198 B1 FR2393198 B1 FR 2393198B1 FR 7739694 A FR7739694 A FR 7739694A FR 7739694 A FR7739694 A FR 7739694A FR 2393198 B1 FR2393198 B1 FR 2393198B1
Authority
FR
France
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.)
Expired
Application number
FR7739694A
Other languages
French (fr)
Other versions
FR2393198A1 (en
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
Priority claimed from JP3340177A external-priority patent/JPS53119267A/en
Priority claimed from JP12573977A external-priority patent/JPS5460266A/en
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of FR2393198A1 publication Critical patent/FR2393198A1/en
Application granted granted Critical
Publication of FR2393198B1 publication Critical patent/FR2393198B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • 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
    • B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
FR7739694A 1977-03-28 1977-12-29 Sound damped building material - has rod or tube with longitudinal grooves rolled on surface prior to twisting Granted FR2393198A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3340177A JPS53119267A (en) 1977-03-28 1977-03-28 Manufacture of vibration damping material by stretching or drawing
JP12573977A JPS5460266A (en) 1977-10-21 1977-10-21 Production of vibro-insulating metallic material

Publications (2)

Publication Number Publication Date
FR2393198A1 FR2393198A1 (en) 1978-12-29
FR2393198B1 true FR2393198B1 (en) 1984-10-19

Family

ID=26372086

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7739694A Granted FR2393198A1 (en) 1977-03-28 1977-12-29 Sound damped building material - has rod or tube with longitudinal grooves rolled on surface prior to twisting

Country Status (2)

Country Link
DE (1) DE2758468C2 (en)
FR (1) FR2393198A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006025488A1 (en) 2004-09-03 2006-03-09 Aichi Steel Corporation Vibration damping member for machine part and method of manufacturing the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR324239A (en) * 1902-07-18 1903-03-26 Broughton Copper Company Ltd Improvements in the manufacture of bars, metal rods, forging parts, spacer bolts, etc.
US1662506A (en) * 1925-11-25 1928-03-13 Mansfield George Henry Method of rolling staybolt iron
US1941521A (en) * 1930-07-07 1934-01-02 Edgewater Steel Friction spring device
US2056816A (en) * 1931-03-20 1936-10-06 William D Gibson Company Spring
DE707779C (en) * 1939-07-08 1941-07-08 Mackel & Co Ges Zur Isolierung Sound absorbing and shock-reducing pad
US2290554A (en) * 1940-06-27 1942-07-21 Nat Lead Co Method of fabricating reinforced material
US2809145A (en) * 1955-01-18 1957-10-08 Mcdermott Francis Roland Vibration-absorbing pad and process of manufacture
FR2339785A1 (en) * 1975-11-25 1977-08-26 Hitachi Ltd Alloy material having high damping capacity - is produced by providing surface with fine cracks by a corrosive treatment

Also Published As

Publication number Publication date
DE2758468C2 (en) 1979-06-13
FR2393198A1 (en) 1978-12-29
DE2758468B1 (en) 1978-10-12

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Legal Events

Date Code Title Description
ST Notification of lapse