FR2394718A1 - IMPROVEMENTS TO A HYDRAULIC SHOCK ABSORBER - Google Patents

IMPROVEMENTS TO A HYDRAULIC SHOCK ABSORBER

Info

Publication number
FR2394718A1
FR2394718A1 FR7818128A FR7818128A FR2394718A1 FR 2394718 A1 FR2394718 A1 FR 2394718A1 FR 7818128 A FR7818128 A FR 7818128A FR 7818128 A FR7818128 A FR 7818128A FR 2394718 A1 FR2394718 A1 FR 2394718A1
Authority
FR
France
Prior art keywords
cylinder
shock absorber
rod
hydraulic shock
bore
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
FR7818128A
Other languages
French (fr)
Other versions
FR2394718B1 (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.)
Tokico Ltd
Original Assignee
Tokico Ltd
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 Tokico Ltd filed Critical Tokico Ltd
Publication of FR2394718A1 publication Critical patent/FR2394718A1/en
Application granted granted Critical
Publication of FR2394718B1 publication Critical patent/FR2394718B1/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
    • F16F9/36—Special sealings, including sealings or guides for piston-rods
    • F16F9/362—Combination of sealing and guide arrangements for piston rods
    • 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

Abstract

L'invention concerne un amortisseur hydraulique comprenant un cylindre disposé verticalement, une tige de piston ayant un piston travaillant dans le cylindre et faisant saillie hors du cylindre à travers son extrémité supérieure, et un guidage disposé à l'extrémité supérieure du cylindre et guidant le mouvement coulissant de la tige. Selon l'invention, un organe 18 en forme de disque ayant une ouverture centrale 18a pour laisser passer la tige de piston 13 est monté à l'extrémite supérieure du cylindre 10, et un organe de protection 19 ayant un alésage 19a pour engager coulissante la tige 13, est prévu, son mouvement dans la direction de l'axe du cylindre étant restreint soit par l'organe 18 soit par le guidage 14, la surface extrême supérieure de l'organe 19 s'étend radialement vers l'extérieur de l'alésage 19a, vers l'extrémité supérieure de l'ouverture centrale. L'invention s'applique notamment à l'industrie automobile.A hydraulic shock absorber comprising a cylinder disposed vertically, a piston rod having a piston working in the cylinder and projecting out of the cylinder through its upper end, and a guide disposed at the upper end of the cylinder and guiding the cylinder. sliding movement of the rod. According to the invention, a disc-shaped member 18 having a central opening 18a for passing the piston rod 13 is mounted at the upper end of the cylinder 10, and a protective member 19 having a bore 19a for slidingly engaging the cylinder. rod 13, is provided, its movement in the direction of the axis of the cylinder being restricted either by the member 18 or by the guide 14, the upper end surface of the member 19 extends radially outwardly of the 'bore 19a, towards the upper end of the central opening. The invention applies in particular to the automotive industry.

FR7818128A 1977-06-17 1978-06-16 IMPROVEMENTS TO A HYDRAULIC SHOCK ABSORBER Granted FR2394718A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1977079401U JPS5846277Y2 (en) 1977-06-17 1977-06-17 hydraulic shock absorber

Publications (2)

Publication Number Publication Date
FR2394718A1 true FR2394718A1 (en) 1979-01-12
FR2394718B1 FR2394718B1 (en) 1983-10-28

Family

ID=13688823

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7818128A Granted FR2394718A1 (en) 1977-06-17 1978-06-16 IMPROVEMENTS TO A HYDRAULIC SHOCK ABSORBER

Country Status (5)

Country Link
JP (1) JPS5846277Y2 (en)
BR (1) BR7803839A (en)
DE (1) DE2826563C2 (en)
FR (1) FR2394718A1 (en)
GB (1) GB2000251B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230743A1 (en) * 1985-12-24 1987-08-05 Ford Motor Company Limited Automotive shock absorber

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE7281T1 (en) * 1980-08-21 1984-05-15 Alexander Schoeller & Co. Ag METHOD AND DEVICE FOR PRINTING BOX-SHAPED OBJECTS WITH VERTICALLY ARRANGED PRINTING TEMPLATES.
FR2541944B1 (en) * 1983-03-02 1985-06-14 Citroen Sa OLEOPNEUMATIC SUSPENSION WITH TOTAL DAMPING
ES276545Y (en) * 1983-12-23 1985-03-01 I.T.W. Espana, S.A. PERFECT SHOCK ABSORBER FOR WASHING MACHINES
JPH0523862Y2 (en) * 1986-04-11 1993-06-17
JPS63302209A (en) * 1987-05-29 1988-12-09 Haaman:Kk Gas burner with combustion subchamber
JPH0447457Y2 (en) * 1987-09-07 1992-11-10
DE3834432A1 (en) * 1988-10-10 1990-04-12 Stabilus Gmbh PROTECTIVE CAP WITH SEALING FUNCTION FOR PRESSURE PIPE BORING
DE4345116C2 (en) * 1993-12-18 1995-11-16 Bilstein August Gmbh Co Kg Hydraulic vibration damper for motor vehicles
DE19813240C1 (en) * 1998-03-26 1999-08-12 Mannesmann Sachs Ag Guide for piston rod in vehicle suspension strut
DE10138196C1 (en) * 2001-08-03 2002-10-31 Zf Sachs Ag Additional cylinder sealing system for damper or shock absorber has cap shaped fitting with sealing lips and additional sealing elements contacting sides of piston rod
DE102004060304B4 (en) * 2004-12-15 2010-01-14 Stabilus Gmbh Piston-cylinder unit and method of manufacturing a piston-cylinder unit
KR20130097421A (en) * 2012-02-24 2013-09-03 주식회사 만도 Dust lip for shock absorber
DE102014202203A1 (en) * 2014-02-06 2015-08-06 Zf Friedrichshafen Ag Apparatus for producing a piston-cylinder unit
JP6435741B2 (en) * 2014-09-22 2018-12-12 トヨタ自動車株式会社 Bump stopper cap
DE102015216075A1 (en) * 2015-08-24 2017-03-02 Volkswagen Aktiengesellschaft Shock absorber for a motor vehicle

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1143871A (en) * 1900-01-01
FR1180329A (en) * 1957-07-30 1959-06-03 Dust Protected Gasket Device for Automobile Telescopic Shock Absorber
FR1229033A (en) * 1959-03-20 1960-09-02 Allinquant Ets Compensation chamber device for telescopic monotube hydraulic shock absorber and shock absorber comprising such a device
US3190400A (en) * 1963-07-24 1965-06-22 Gen Motors Corp Shock absorber
US3227497A (en) * 1963-04-25 1966-01-04 Christian Marie Lucien Louis B Piston rod seal for shock absorbers
FR1467911A (en) * 1965-12-22 1967-02-03 Hydraulic shock absorber
FR1549363A (en) * 1966-09-28 1968-12-13
FR2052622A5 (en) * 1969-06-20 1971-04-09 Fichtel & Sachs Ag Ptfe coated seal for shock absorbers
FR2175417A5 (en) * 1972-02-12 1973-10-19 Fichtel & Sachs Ag
US3830347A (en) * 1970-06-12 1974-08-20 Monroe Belgium Nv Shock absorber and dirt shield therefor
US3948359A (en) * 1975-04-14 1976-04-06 General Motors Corporation Vehicle hydraulic shock absorber and indicating system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB719661A (en) * 1952-05-15 1954-12-08 Girling Ltd Improvements in or relating to vehicle suspension means
GB1033810A (en) * 1963-07-15 1966-06-22 Woodhead Monroe Ltd Improvements relating to vibration dampers
GB1052680A (en) * 1964-09-21
GB1281889A (en) * 1968-09-19 1972-07-19 Armstrong Patents Co Ltd Improvements in and relating to telescopic shock absorbers and struts
DE7044418U (en) * 1970-12-02 1971-04-15 Fichtel & Sachs Ag Piston rod seal
GB1365551A (en) * 1971-06-02 1974-09-04 Girling Ltd Seals
JPS5335664Y2 (en) * 1973-05-01 1978-08-31
JPS5910442Y2 (en) * 1975-11-18 1984-04-02 カヤバ工業株式会社 Hydraulic shock absorber shaft sealing device

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1143871A (en) * 1900-01-01
FR1180329A (en) * 1957-07-30 1959-06-03 Dust Protected Gasket Device for Automobile Telescopic Shock Absorber
FR1229033A (en) * 1959-03-20 1960-09-02 Allinquant Ets Compensation chamber device for telescopic monotube hydraulic shock absorber and shock absorber comprising such a device
US3227497A (en) * 1963-04-25 1966-01-04 Christian Marie Lucien Louis B Piston rod seal for shock absorbers
US3190400A (en) * 1963-07-24 1965-06-22 Gen Motors Corp Shock absorber
FR1467911A (en) * 1965-12-22 1967-02-03 Hydraulic shock absorber
FR1549363A (en) * 1966-09-28 1968-12-13
FR2052622A5 (en) * 1969-06-20 1971-04-09 Fichtel & Sachs Ag Ptfe coated seal for shock absorbers
US3830347A (en) * 1970-06-12 1974-08-20 Monroe Belgium Nv Shock absorber and dirt shield therefor
FR2175417A5 (en) * 1972-02-12 1973-10-19 Fichtel & Sachs Ag
US3948359A (en) * 1975-04-14 1976-04-06 General Motors Corporation Vehicle hydraulic shock absorber and indicating system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0230743A1 (en) * 1985-12-24 1987-08-05 Ford Motor Company Limited Automotive shock absorber

Also Published As

Publication number Publication date
JPS546486U (en) 1979-01-17
DE2826563A1 (en) 1978-12-21
BR7803839A (en) 1979-01-16
DE2826563C2 (en) 1983-10-27
GB2000251A (en) 1979-01-04
JPS5846277Y2 (en) 1983-10-21
FR2394718B1 (en) 1983-10-28
GB2000251B (en) 1982-05-19

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Legal Events

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ST Notification of lapse