ES2053386A2 - Shock absorber closing appts. - has holder to take the assembly while tool bends over the top lip of the outer tube to close the end - Google Patents

Shock absorber closing appts. - has holder to take the assembly while tool bends over the top lip of the outer tube to close the end

Info

Publication number
ES2053386A2
ES2053386A2 ES09200832A ES9200832A ES2053386A2 ES 2053386 A2 ES2053386 A2 ES 2053386A2 ES 09200832 A ES09200832 A ES 09200832A ES 9200832 A ES9200832 A ES 9200832A ES 2053386 A2 ES2053386 A2 ES 2053386A2
Authority
ES
Spain
Prior art keywords
tool
assembly
tube
outer tube
appts
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.)
Granted
Application number
ES09200832A
Other languages
Spanish (es)
Other versions
ES2053386B1 (en
ES2053386R (en
Inventor
Hermann Itzinger
Horst Drescher
Thomas Eihenmuller
Roland Heinisch
Werner Christel
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.)
ZF Sachs AG
Original Assignee
Fichtel and Sachs AG
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 Fichtel and Sachs AG filed Critical Fichtel and Sachs AG
Publication of ES2053386A2 publication Critical patent/ES2053386A2/en
Publication of ES2053386R publication Critical patent/ES2053386R/es
Application granted granted Critical
Publication of ES2053386B1 publication Critical patent/ES2053386B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/362—Combination of sealing and guide arrangements for piston rods
    • F16F9/364—Combination of sealing and guide arrangements for piston rods of multi-tube dampers
    • 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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3271—Assembly or repair

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

The appts. to close a piston/cylinder assembly, such as a shock absorber, has a holder to take the outer tube (3) of the absorber assembly at a defined position to a reference plane (20). At least one bending tool (17), to bend over the upper lip of the outer tube (3) of the assembly to form the closure, is moved from a radially outer position to bring the tool surface (19) parallel to the tube and against it. During the lip bending action, the tool (17) swings round a pivot point by a given angle between the end face of the piston and the tool surface (19). The mechanism gives a relative rotary movement between the outer tube (3) and the tool (17) while the upper lip of the tube (3) is bent over to give the closure. At the end of the lip bending action, the tool (17) is returned to its start position. ADVANTAGE - The appts. gives an effective closing action to the end of the tube contg. the shock absorber assembly, where the shrouding tube has a relatively thick wall, to give a flat closed end.
ES9200832A 1991-04-20 1992-04-20 METHOD OF MANUFACTURING A CYLINDER PISTON UNIT. Expired - Fee Related ES2053386B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914112956 DE4112956B4 (en) 1991-04-20 1991-04-20 Device for closing piston-cylinder units

Publications (3)

Publication Number Publication Date
ES2053386A2 true ES2053386A2 (en) 1994-07-16
ES2053386R ES2053386R (en) 1997-11-16
ES2053386B1 ES2053386B1 (en) 1998-07-01

Family

ID=6430011

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9200832A Expired - Fee Related ES2053386B1 (en) 1991-04-20 1992-04-20 METHOD OF MANUFACTURING A CYLINDER PISTON UNIT.

Country Status (3)

Country Link
DE (1) DE4112956B4 (en)
ES (1) ES2053386B1 (en)
FR (1) FR2675407B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4407261C2 (en) * 1993-11-02 1999-03-11 Mannesmann Sachs Ag Piston-cylinder unit
ES2121493B1 (en) * 1993-11-02 1999-06-01 Fichtel & Sachs Ag PISTON AND CYLINDER ASSEMBLY AND PROCEDURE AND DEVICE FOR CLOSING A PISTON AND CYLINDER ASSEMBLY.
DE10336151A1 (en) 2003-08-07 2005-03-10 Zahnradfabrik Friedrichshafen Vibration damper in lightweight construction
CN101564749B (en) * 2009-05-31 2010-12-08 隆昌山川精密焊管有限责任公司 Gas-liquid vibration absorber charging-sealing device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558165A1 (en) * 1974-12-28 1976-07-22 Tokico Ltd SHOCK ABSORBER
FR2329370A1 (en) * 1975-10-31 1977-05-27 Coil Protection Service Thin walled steel cylinders with inner or outer flanged ends - are shaped by rolling cylinder ends through 90 degrees on former
FR2454562A1 (en) * 1979-04-18 1980-11-14 Allinquant J G Twin tube hydraulic shock absorber - has seal guide and baffles and joint for sliding rod
DE3423598A1 (en) * 1984-06-27 1986-01-09 Fichtel & Sachs Ag, 8720 Schweinfurt Device for closing vibration dampers
DE3708978A1 (en) * 1987-03-19 1988-09-29 Boge Ag Gas-pressure damper of twin-tube telescopic design

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE476588C (en) * 1929-05-21 Demag Akt Ges Machine for flanging, expanding and pulling in pipe ends with swiveling flanging roller
US2368817A (en) * 1943-08-31 1945-02-06 Marathon Corp Apparatus for sealing containers
DE3446407A1 (en) * 1984-12-20 1986-07-10 Günther 7307 Aichwald Hahn Adjustable gas-filled spring
SU1450895A1 (en) * 1985-12-27 1989-01-15 Первоуральский новотрубный завод Stand for beading bottle necks
DD274133A3 (en) * 1987-10-20 1989-12-13 Umform & Plastverarb Fz DEVICE FOR BORING PIPE ENDS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558165A1 (en) * 1974-12-28 1976-07-22 Tokico Ltd SHOCK ABSORBER
FR2329370A1 (en) * 1975-10-31 1977-05-27 Coil Protection Service Thin walled steel cylinders with inner or outer flanged ends - are shaped by rolling cylinder ends through 90 degrees on former
FR2454562A1 (en) * 1979-04-18 1980-11-14 Allinquant J G Twin tube hydraulic shock absorber - has seal guide and baffles and joint for sliding rod
DE3423598A1 (en) * 1984-06-27 1986-01-09 Fichtel & Sachs Ag, 8720 Schweinfurt Device for closing vibration dampers
DE3708978A1 (en) * 1987-03-19 1988-09-29 Boge Ag Gas-pressure damper of twin-tube telescopic design

Also Published As

Publication number Publication date
FR2675407B1 (en) 1995-03-10
FR2675407A1 (en) 1992-10-23
ES2053386B1 (en) 1998-07-01
ES2053386R (en) 1997-11-16
DE4112956A1 (en) 1992-10-22
DE4112956B4 (en) 2008-05-15

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