FR2317563A1 - Gas spring with slidable piston - having axial passages closed by skirt on extension movement and by sprung sliding element - Google Patents

Gas spring with slidable piston - having axial passages closed by skirt on extension movement and by sprung sliding element

Info

Publication number
FR2317563A1
FR2317563A1 FR7521227A FR7521227A FR2317563A1 FR 2317563 A1 FR2317563 A1 FR 2317563A1 FR 7521227 A FR7521227 A FR 7521227A FR 7521227 A FR7521227 A FR 7521227A FR 2317563 A1 FR2317563 A1 FR 2317563A1
Authority
FR
France
Prior art keywords
piston
sliding element
skirt
gas spring
extension movement
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
FR7521227A
Other languages
French (fr)
Other versions
FR2317563B1 (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
Application filed by Individual filed Critical Individual
Priority to FR7521227A priority Critical patent/FR2317563A1/en
Publication of FR2317563A1 publication Critical patent/FR2317563A1/en
Application granted granted Critical
Publication of FR2317563B1 publication Critical patent/FR2317563B1/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
    • F16F9/0227—Telescopic characterised by the piston construction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/02—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with pneumatic piston brakes
    • 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
    • F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
    • F16F9/49—Stops limiting fluid passage, e.g. hydraulic stops or elastomeric elements inside the cylinder which contribute to changes in fluid damping

Abstract

The gas spring has a slidable piston with axial bores permitting gas to flow between two cylinder chambers. The piston is connected to a rod which passes through one end of the cylinder, the piston rod being seald to the cylinder. A sliding element is biassed to a predetermined position by a spring to close some of the piston bores. The piston has a skirt which covers further bores when the piston moves in a direction to extend the rod. The compressed gas used in the spring is prf. nitrogen, the sliding element being formed of an elastometer material.
FR7521227A 1975-07-07 1975-07-07 Gas spring with slidable piston - having axial passages closed by skirt on extension movement and by sprung sliding element Granted FR2317563A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7521227A FR2317563A1 (en) 1975-07-07 1975-07-07 Gas spring with slidable piston - having axial passages closed by skirt on extension movement and by sprung sliding element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7521227A FR2317563A1 (en) 1975-07-07 1975-07-07 Gas spring with slidable piston - having axial passages closed by skirt on extension movement and by sprung sliding element

Publications (2)

Publication Number Publication Date
FR2317563A1 true FR2317563A1 (en) 1977-02-04
FR2317563B1 FR2317563B1 (en) 1978-04-14

Family

ID=9157591

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7521227A Granted FR2317563A1 (en) 1975-07-07 1975-07-07 Gas spring with slidable piston - having axial passages closed by skirt on extension movement and by sprung sliding element

Country Status (1)

Country Link
FR (1) FR2317563A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2473145A1 (en) * 1979-12-19 1981-07-10 Stabilus Gmbh GAS SPRING
US4527674A (en) * 1982-09-20 1985-07-09 Ford Motor Company Shock absorber with a hydro-mechanical stop
US4838393A (en) * 1982-09-20 1989-06-13 Ford Motor Company Hydro-mechanical stop having a restrictive passage
EP0864774A1 (en) * 1997-03-14 1998-09-16 General Motors Corporation Suspension damper with rebound cut-off
EP0881408A2 (en) * 1997-05-28 1998-12-02 Draftex Industries Limited Gas spring with speed regulation
US6209691B1 (en) 1998-08-04 2001-04-03 General Motors Corporation Suspension damper with self-aligning rebound cut-off
DE102016106173B4 (en) 2015-04-07 2023-08-03 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) GAS SPRING ROD SYSTEM

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2446965A1 (en) * 1979-01-17 1980-08-14 Allinquant J G PLUG DEVICE FOR THE PENETRATION OF A PLUNGER ROD IN A PNEUMATIC SPRING CYLINDER OR THE LIKE
FR2473145A1 (en) * 1979-12-19 1981-07-10 Stabilus Gmbh GAS SPRING
US4527674A (en) * 1982-09-20 1985-07-09 Ford Motor Company Shock absorber with a hydro-mechanical stop
US4838393A (en) * 1982-09-20 1989-06-13 Ford Motor Company Hydro-mechanical stop having a restrictive passage
EP0864774A1 (en) * 1997-03-14 1998-09-16 General Motors Corporation Suspension damper with rebound cut-off
EP0881408A2 (en) * 1997-05-28 1998-12-02 Draftex Industries Limited Gas spring with speed regulation
EP0881408A3 (en) * 1997-05-28 1999-12-01 Draftex Industries Limited Gas spring with speed regulation
US6129343A (en) * 1997-05-28 2000-10-10 Draftex Industries Limited Gas spring with speed regulation
GB2325701B (en) * 1997-05-28 2001-07-18 Draftex Ind Ltd Gas spring with speed regulation
US6209691B1 (en) 1998-08-04 2001-04-03 General Motors Corporation Suspension damper with self-aligning rebound cut-off
DE102016106173B4 (en) 2015-04-07 2023-08-03 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) GAS SPRING ROD SYSTEM

Also Published As

Publication number Publication date
FR2317563B1 (en) 1978-04-14

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Legal Events

Date Code Title Description
ST Notification of lapse