FR2335929A1 - 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
FR2335929A1
FR2335929A1 FR7538295A FR7538295A FR2335929A1 FR 2335929 A1 FR2335929 A1 FR 2335929A1 FR 7538295 A FR7538295 A FR 7538295A FR 7538295 A FR7538295 A FR 7538295A FR 2335929 A1 FR2335929 A1 FR 2335929A1
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
FR7538295A
Other languages
French (fr)
Other versions
FR2335929B1 (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 FR7538295A priority Critical patent/FR2335929A1/en
Application filed by Individual filed Critical Individual
Priority to DE19762659847 priority patent/DE2659847A1/en
Priority to IT49605/76A priority patent/IT1061305B/en
Priority to CH647276A priority patent/CH608282A5/xx
Priority to ES448435A priority patent/ES448435A1/en
Priority to DE2622879A priority patent/DE2622879C2/en
Priority to CH127378A priority patent/CH611444A5/xx
Priority to US05/689,603 priority patent/US4089512A/en
Publication of FR2335929A1 publication Critical patent/FR2335929A1/en
Priority to US05/873,888 priority patent/US4163970A/en
Application granted granted Critical
Publication of FR2335929B1 publication Critical patent/FR2335929B1/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
    • F16F9/02—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
    • F16F9/0281—Details
    • F16F9/029—Details electrical, e.g. connections or contacts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Actuator (AREA)

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.
FR7538295A 1975-05-23 1975-12-15 Gas spring with inbuilt damper - has cross-sectional area of damping orifice changed with direction of piston motion Granted FR2335929A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7538295A FR2335929A1 (en) 1975-12-15 1975-12-15 Gas spring with inbuilt damper - has cross-sectional area of damping orifice changed with direction of piston motion
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
ES448435A ES448435A1 (en) 1975-05-23 1976-05-21 Pneumatic springs and other telescopic systems
DE19762659847 DE2659847A1 (en) 1975-12-15 1976-05-21 TELESCOPIC SYSTEM, IN PARTICULAR PNEUMATIC SPRING
DE2622879A DE2622879C2 (en) 1975-05-23 1976-05-21 Telescopic 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
FR7538295A FR2335929A1 (en) 1975-12-15 1975-12-15 Gas spring with inbuilt damper - has cross-sectional area of damping orifice changed with direction of piston motion

Publications (2)

Publication Number Publication Date
FR2335929A1 true FR2335929A1 (en) 1977-07-15
FR2335929B1 FR2335929B1 (en) 1980-06-13

Family

ID=9163743

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7538295A Granted FR2335929A1 (en) 1975-05-23 1975-12-15 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) DE2659847A1 (en)
FR (1) FR2335929A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410349A1 (en) * 1977-11-26 1979-06-22 Stabilus Gmbh GAS SPRING FORMING CURRENT SWITCH
US4667940A (en) * 1984-09-28 1987-05-26 Socalfran Pneumatic spring provided with position detection means
FR2591651A2 (en) * 1985-12-18 1987-06-19 Socalfram Device with a pneumatic spring for opening and closing opening shutters of buildings
EP0145525B1 (en) * 1983-11-03 1988-02-24 Fernand Michel Allinquant Device for handling articles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2410349A1 (en) * 1977-11-26 1979-06-22 Stabilus Gmbh GAS SPRING FORMING CURRENT SWITCH
EP0145525B1 (en) * 1983-11-03 1988-02-24 Fernand Michel Allinquant Device for handling articles
US4667940A (en) * 1984-09-28 1987-05-26 Socalfran Pneumatic spring provided with position detection means
FR2591651A2 (en) * 1985-12-18 1987-06-19 Socalfram Device with a pneumatic spring for opening and closing opening shutters of buildings

Also Published As

Publication number Publication date
FR2335929B1 (en) 1980-06-13
DE2659847A1 (en) 1977-10-20

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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