FR2311967A1 - Gas spring with inbuilt damper - has cross-sectional area of damping orifice changed with direction of piston motion - Google Patents

Gas spring with inbuilt damper - has cross-sectional area of damping orifice changed with direction of piston motion

Info

Publication number
FR2311967A1
FR2311967A1 FR7516138A FR7516138A FR2311967A1 FR 2311967 A1 FR2311967 A1 FR 2311967A1 FR 7516138 A FR7516138 A FR 7516138A FR 7516138 A FR7516138 A FR 7516138A FR 2311967 A1 FR2311967 A1 FR 2311967A1
Authority
FR
France
Prior art keywords
piston
gas spring
inbuilt
damper
cross
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
FR7516138A
Other languages
French (fr)
Other versions
FR2311967B1 (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.)
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
Priority to FR7516138A priority Critical patent/FR2311967A1/en
Application filed by Individual filed Critical Individual
Priority to DE2622879A priority patent/DE2622879C2/en
Priority to ES448435A priority patent/ES448435A1/en
Priority to IT49605/76A priority patent/IT1061305B/en
Priority to CH647276A priority patent/CH608282A5/xx
Priority to DE19762659846 priority patent/DE2659846A1/en
Priority to CH127378A priority patent/CH611444A5/xx
Priority to US05/689,603 priority patent/US4089512A/en
Publication of FR2311967A1 publication Critical patent/FR2311967A1/en
Priority to US05/873,888 priority patent/US4163970A/en
Application granted granted Critical
Publication of FR2311967B1 publication Critical patent/FR2311967B1/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
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • F16F9/3242—Constructional features of cylinders of cylinder ends, e.g. caps
    • 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
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F16F9/0218—Mono-tubular units

Abstract

The gas spring consists of a cylinder (1) and piston (7). The piston has a limited degree of axial travel between the fixed sleeve (61) and the retaining washer (62). An orifice (74) connects the radial grooves (710, 720) on opposite sides of the piston (7). When the piston moves towards the closed end of the cylinder (1), the gas pressure forces it against the sleeve (61) so that there is a gap between the piston (7) and the washer (62) giving the maximum opening of the orifice (710) and so providing only minimum damping. Movement in the opposite direction closes the gap so that the orifice (710) is partly obstructed by the washer (6), providing maximum damping.
FR7516138A 1975-05-23 1975-05-23 Gas spring with inbuilt damper - has cross-sectional area of damping orifice changed with direction of piston motion Granted FR2311967A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7516138A FR2311967A1 (en) 1975-05-23 1975-05-23 Gas spring with inbuilt damper - has cross-sectional area of damping orifice changed with direction of piston motion
ES448435A ES448435A1 (en) 1975-05-23 1976-05-21 Pneumatic springs and other telescopic systems
IT49605/76A IT1061305B (en) 1975-05-23 1976-05-21 TELESCOPIC DEVICE FOR PNEUMATIC SPRINGS OR SIMILAR
CH647276A CH608282A5 (en) 1975-05-23 1976-05-21
DE2622879A DE2622879C2 (en) 1975-05-23 1976-05-21 Telescopic pneumatic spring
DE19762659846 DE2659846A1 (en) 1975-05-23 1976-05-21 TELESCOPIC SYSTEM, IN PARTICULAR PNEUMATIC SPRING
CH127378A CH611444A5 (en) 1975-05-23 1976-05-21
US05/689,603 US4089512A (en) 1975-05-23 1976-05-24 Pneumatic springs and other telescopic systems
US05/873,888 US4163970A (en) 1975-05-23 1978-01-31 Pneumatic springs and other telescopic systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7516138A FR2311967A1 (en) 1975-05-23 1975-05-23 Gas spring with inbuilt damper - has cross-sectional area of damping orifice changed with direction of piston motion

Publications (2)

Publication Number Publication Date
FR2311967A1 true FR2311967A1 (en) 1976-12-17
FR2311967B1 FR2311967B1 (en) 1980-01-11

Family

ID=9155601

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7516138A Granted FR2311967A1 (en) 1975-05-23 1975-05-23 Gas spring with inbuilt damper - has cross-sectional area of damping orifice changed with direction of piston motion

Country Status (2)

Country Link
DE (1) DE2659846A1 (en)
FR (1) FR2311967A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422871A1 (en) * 1978-04-13 1979-11-09 Fichtel & Sachs Ag SHOCK ABSORBER FOR VEHICLE SUSPENSION
EP0014126A1 (en) * 1979-01-16 1980-08-06 Société J.G. ALLINQUANT Improvements relating to pneumatic spring pistons or the like
EP0014132A1 (en) * 1979-01-17 1980-08-06 Société J.G. ALLINQUANT Sealing device for a piston rod penetrating in the cylinder of a pneumatic spring or the like
EP0037772A1 (en) * 1980-04-02 1981-10-14 Nouvelles Applications Technologiques Thermal separator with moving distributor
EP0059665A1 (en) * 1981-02-27 1982-09-08 Société J.G. ALLINQUANT Blocking arrangement for the piston rod of a pneumatic spring
FR2568646A1 (en) * 1984-07-31 1986-02-07 Socalfram TILTING PNEUMATIC SPRING WITH IMPROVED SEALING
FR2618093A1 (en) * 1987-07-16 1989-01-20 Stabilus Gmbh DEPANNEUR TROLLEY FOR STORING AND MAKING TOOLS AVAILABLE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194731A (en) * 1978-12-20 1980-03-25 Atwood Vacuum Machine Company Gas spring and method of filling the same
JP7089328B2 (en) * 2018-10-31 2022-06-22 株式会社ハイレックスコーポレーション Object movement mechanism

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2422871A1 (en) * 1978-04-13 1979-11-09 Fichtel & Sachs Ag SHOCK ABSORBER FOR VEHICLE SUSPENSION
EP0014126A1 (en) * 1979-01-16 1980-08-06 Société J.G. ALLINQUANT Improvements relating to pneumatic spring pistons or the like
EP0014132A1 (en) * 1979-01-17 1980-08-06 Société J.G. ALLINQUANT Sealing device for a piston rod penetrating in the cylinder of a pneumatic spring or the like
EP0037772A1 (en) * 1980-04-02 1981-10-14 Nouvelles Applications Technologiques Thermal separator with moving distributor
EP0059665A1 (en) * 1981-02-27 1982-09-08 Société J.G. ALLINQUANT Blocking arrangement for the piston rod of a pneumatic spring
FR2568646A1 (en) * 1984-07-31 1986-02-07 Socalfram TILTING PNEUMATIC SPRING WITH IMPROVED SEALING
WO1986000966A1 (en) * 1984-07-31 1986-02-13 Socalfran Swinging pneumatic spring with improved sealing characteristics
FR2618093A1 (en) * 1987-07-16 1989-01-20 Stabilus Gmbh DEPANNEUR TROLLEY FOR STORING AND MAKING TOOLS AVAILABLE

Also Published As

Publication number Publication date
DE2659846A1 (en) 1977-11-10
FR2311967B1 (en) 1980-01-11

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Legal Events

Date Code Title Description
TP Transmission of property
CD Change of name or company name
CN Change in juridical nature
TP Transmission of property
ST Notification of lapse