SE9502413L - Device at a gas spring for wiping off a piston rod - Google Patents

Device at a gas spring for wiping off a piston rod

Info

Publication number
SE9502413L
SE9502413L SE9502413A SE9502413A SE9502413L SE 9502413 L SE9502413 L SE 9502413L SE 9502413 A SE9502413 A SE 9502413A SE 9502413 A SE9502413 A SE 9502413A SE 9502413 L SE9502413 L SE 9502413L
Authority
SE
Sweden
Prior art keywords
piston rod
cylinder
designed
piston
gas
Prior art date
Application number
SE9502413A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE504496C2 (en
SE9502413D0 (en
Inventor
Gunnar Sand
Original Assignee
Stromsholmens Mek Verkstad
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 Stromsholmens Mek Verkstad filed Critical Stromsholmens Mek Verkstad
Priority to SE9502413A priority Critical patent/SE504496C2/en
Publication of SE9502413D0 publication Critical patent/SE9502413D0/en
Priority to PCT/SE1996/000837 priority patent/WO1997002440A1/en
Publication of SE9502413L publication Critical patent/SE9502413L/en
Publication of SE504496C2 publication Critical patent/SE504496C2/en

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Sealing Devices (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The present invention relates to an arrangement in a gas-filled spring (1) for scraping of a piston rod (2). The first end of the piston rod is connected to a piston (3) axially moveable in a cylinder (4), which piston is designed to be acted upon by a pressure in an internal space (4b) of the cylinder filled with a compressible gas/oil mixture. The second end of the piston rod extends out of the cylinder through an opening centred in a first end (4a) of the cylinder. A scraper element (5) is designed to prevent any impurities in the environment surrounding the gas-filled spring from passing into the cylinder (4) at the inward movement of the piston rod (2). The arrangement is characterised in that the opening surrounding the first end (4a) of the cylinder comprises an inner surface (4a1) corresponding to a surface of an essentially conforming section (5a) formed on the scraper element (5) and surrounding the piston rod (2), which section is positionally fixed in relation to the inner surface (4a1) and is composed of an elastic material which is designed to be deformed under the effect of the pressure in the internal space (4b) of the cylinder, the said section being designed to be applied against the piston rod (2).
SE9502413A 1995-07-03 1995-07-03 Device at a gas spring for wiping off a piston rod SE504496C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9502413A SE504496C2 (en) 1995-07-03 1995-07-03 Device at a gas spring for wiping off a piston rod
PCT/SE1996/000837 WO1997002440A1 (en) 1995-07-03 1996-06-26 Device at a gas spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9502413A SE504496C2 (en) 1995-07-03 1995-07-03 Device at a gas spring for wiping off a piston rod

Publications (3)

Publication Number Publication Date
SE9502413D0 SE9502413D0 (en) 1995-07-03
SE9502413L true SE9502413L (en) 1997-01-04
SE504496C2 SE504496C2 (en) 1997-02-24

Family

ID=20398835

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9502413A SE504496C2 (en) 1995-07-03 1995-07-03 Device at a gas spring for wiping off a piston rod

Country Status (2)

Country Link
SE (1) SE504496C2 (en)
WO (1) WO1997002440A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6878811B1 (en) * 1998-04-23 2005-04-12 Ajinomoto Co., Inc. Substance with antithrombotic activity and method for detecting glycokallidin

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE225790C1 (en) * 1969-03-25
US1365030A (en) * 1919-09-15 1921-01-11 Flentje Ernst Shock-absorber
US2880022A (en) * 1956-12-05 1959-03-31 Gen Motors Corp Shock absorber packing having line engagement
BE625337A (en) * 1961-11-29
DE2235472A1 (en) * 1971-07-29 1973-02-08 Itt Ind Gmbh Deutsche SEAL FOR PISTON RODS, IN PARTICULAR FOR HYDRAULIC SHOCK ABSORBERS
US4342448A (en) * 1980-04-04 1982-08-03 Wallis Bernard J Gas-operated cylinder
US4583722A (en) * 1984-05-17 1986-04-22 Wallis Bernard J Nitrogen die cylinder

Also Published As

Publication number Publication date
WO1997002440A1 (en) 1997-01-23
SE504496C2 (en) 1997-02-24
SE9502413D0 (en) 1995-07-03

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Legal Events

Date Code Title Description
NUG Patent has lapsed