JPS57127136A - Closed type cylinder device - Google Patents

Closed type cylinder device

Info

Publication number
JPS57127136A
JPS57127136A JP1184981A JP1184981A JPS57127136A JP S57127136 A JPS57127136 A JP S57127136A JP 1184981 A JP1184981 A JP 1184981A JP 1184981 A JP1184981 A JP 1184981A JP S57127136 A JPS57127136 A JP S57127136A
Authority
JP
Japan
Prior art keywords
piston rod
oil
oil chambers
chamber
gas pressure
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
JP1184981A
Other languages
Japanese (ja)
Other versions
JPS6367053B2 (en
Inventor
Masahiro Ashiba
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
Priority to JP1184981A priority Critical patent/JPS57127136A/en
Priority to GB8202351A priority patent/GB2095363B/en
Priority to DE19823202967 priority patent/DE3202967A1/en
Publication of JPS57127136A publication Critical patent/JPS57127136A/en
Publication of JPS6367053B2 publication Critical patent/JPS6367053B2/ja
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
    • F16F9/56—Means for adjusting the length of, or for locking, the spring or damper, e.g. at the end of the stroke

Abstract

PURPOSE: To enable a positive keeping of locked condition by a method wherein any effect may not be applied to an extension or retraction of piston rod by a spring force when locked so long as a large force as damaging the component parts such as cylinder and the like may not be applied.
CONSTITUTION: A valve rod 7 is depressed down from outside and valves 8 and 9 are disengaged in respect to seals 13 and 15. Thereby, each of oil chambers A, B and C is communicated to each other, and a gas pressure in the gas chamber D is acted upon the oil liquid in the oil chambers A and B through the oil liquid in the oil chamber C. As a result, the force in an elongated direction is acted upon the assembly of a piston and a piston rod due to a difference in pressure recieving areas for gas pressure corresponding to the sectional area of the piston rod 3, and then the piston rod 3 is pushed out of the cylinder 1. In turn, when the valve rod 7 is pushed up to cause the valve means 8 and 9 to be fitted in respect to the seals 13 and 15, each of the oil chambers A, B and C is made to be a closed chamber to each other, resulting in that the gas pressure in the gas chamber D may not act against the oil chambers A and B.
COPYRIGHT: (C)1982,JPO&Japio
JP1184981A 1981-01-29 1981-01-29 Closed type cylinder device Granted JPS57127136A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP1184981A JPS57127136A (en) 1981-01-29 1981-01-29 Closed type cylinder device
GB8202351A GB2095363B (en) 1981-01-29 1982-01-27 Lockable cylindeer device
DE19823202967 DE3202967A1 (en) 1981-01-29 1982-01-29 CYLINDER PISTON UNIT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1184981A JPS57127136A (en) 1981-01-29 1981-01-29 Closed type cylinder device

Publications (2)

Publication Number Publication Date
JPS57127136A true JPS57127136A (en) 1982-08-07
JPS6367053B2 JPS6367053B2 (en) 1988-12-23

Family

ID=11789165

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1184981A Granted JPS57127136A (en) 1981-01-29 1981-01-29 Closed type cylinder device

Country Status (3)

Country Link
JP (1) JPS57127136A (en)
DE (1) DE3202967A1 (en)
GB (1) GB2095363B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01112040A (en) * 1987-10-26 1989-04-28 Kayaba Ind Co Ltd Cylinder

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326098A1 (en) * 1983-07-20 1985-02-07 Heinz 8775 Partenstein Tepass Cylinder with closed hydraulic system
DE3408909A1 (en) * 1984-03-10 1985-09-12 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau HYDRAULIC DRIVE
DE3419364C2 (en) * 1984-05-24 1994-03-24 Stabilus Gmbh Infinitely lockable lifting unit
US4683992A (en) * 1985-09-13 1987-08-04 Ford Motor Company Vehicle suspension damper with remote control
DE3542653A1 (en) * 1985-12-03 1987-06-04 Vogel Ignaz Fahrzeugsitze HYDRAULIC BLOCKING SPRING
DE3825077A1 (en) * 1988-07-23 1990-01-25 Bauer Fritz & Soehne Ohg LENGTH ADJUSTABLE ADJUSTMENT
DE4000245C1 (en) * 1990-01-06 1991-02-28 Guenther 7307 Aichwald De Hahn Pressurised gas spring with cylinder - has annular groove in piston rod collar, whose depth permits retaining extra O=ring
DE19619252A1 (en) * 1996-05-13 1997-11-20 Rainer Bischoff Device for guaranteeing predetermined gap between two objects
EP0954709A1 (en) * 1997-11-24 1999-11-10 Cabex AG Support and method for the production thereof
DE102011002339B4 (en) * 2011-04-29 2013-01-24 Thomas Ripa Shock absorber leg for a bicycle
US9156519B2 (en) 2011-04-29 2015-10-13 Thomas Ripa Damping strut for a bicycle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52154972A (en) * 1976-06-19 1977-12-23 Tokico Ltd Gas spring

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974604C (en) * 1952-06-17 1961-02-23 Westinghouse Bremsen Ges M B H Hand brake device with pneumatic or hydraulic auxiliary power support for motor vehicles
DE1301026B (en) * 1964-11-14 1969-08-14 Reinhard Hoernlein Kg Holz Und Hydropneumatic lifting unit, especially for height-adjustable tables and chairs
DE1930914U (en) * 1965-02-25 1966-01-13 Fichtel & Sachs Ag HYDROPNEUMATIC LIFTING UNIT, IN PARTICULAR FOR CONTINUOUS HEIGHT ADJUSTMENT OF TABLE TOPS AND CHAIRS.
DE2022609B2 (en) * 1970-05-08 1972-05-10 Herbert Hänchen KG, 7304 Ruit HYDROPNEUMATIC PISTON CYLINDER ARRANGEMENT
DE2031790C3 (en) * 1970-06-26 1975-12-04 Alfred Dipl.-Ing. 4046 Buettgen Heitner Double-acting, pneumatically operated working cylinder
DE2235592C3 (en) * 1972-07-20 1974-12-05 Neuweg Fertigung Gmbh Fuer Praezisionstechnik, 7932 Munderkingen Hydraulic locking device
DE2855560A1 (en) * 1978-12-22 1980-07-03 Stabilus Gmbh GAS SPRING WITH MECHANICAL BLOCKING DEVICE
DE2920423A1 (en) * 1979-05-19 1980-11-27 Stabilus Gmbh COMPRESSED AIR CYLINDER WITH LOCKING DEVICE

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52154972A (en) * 1976-06-19 1977-12-23 Tokico Ltd Gas spring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01112040A (en) * 1987-10-26 1989-04-28 Kayaba Ind Co Ltd Cylinder

Also Published As

Publication number Publication date
GB2095363B (en) 1985-07-17
GB2095363A (en) 1982-09-29
DE3202967A1 (en) 1982-10-14
JPS6367053B2 (en) 1988-12-23

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