FR1453681A - Hydraulic lift assembly - Google Patents

Hydraulic lift assembly

Info

Publication number
FR1453681A
FR1453681A FR46259A FR69046259A FR1453681A FR 1453681 A FR1453681 A FR 1453681A FR 46259 A FR46259 A FR 46259A FR 69046259 A FR69046259 A FR 69046259A FR 1453681 A FR1453681 A FR 1453681A
Authority
FR
France
Prior art keywords
chamber
chambers
oil
guide
valve
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.)
Expired
Application number
FR46259A
Other languages
French (fr)
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.)
REINHARD HORNLEIN KG
Original Assignee
REINHARD HORNLEIN KG
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 REINHARD HORNLEIN KG filed Critical REINHARD HORNLEIN KG
Application granted granted Critical
Publication of FR1453681A publication Critical patent/FR1453681A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/10—Tables with tops of variable height with vertically-acting fluid cylinder
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/076—Combined pneumatic-hydraulic systems with pneumatic drive or displacement and speed control or stopping by hydraulic braking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1466—Hollow piston sliding over a stationary rod inside the cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
    • F15B2211/41536—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve being connected to multiple ports of an output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/75—Control of speed of the output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/885—Control specific to the type of fluid, e.g. specific to magnetorheological fluid
    • F15B2211/8855—Compressible fluids, e.g. specific to pneumatics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S60/00—Power plants
    • Y10S60/907—Working member positioned against counterforce by constantly applied motive fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Damping Devices (AREA)
  • Chairs Characterized By Structure (AREA)
  • Actuator (AREA)
  • Vehicle Body Suspensions (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Ropes Or Cables (AREA)

Abstract

1123030 Seats REINHARD HORNLEIN K G 12 Nov 1965 [14 Nov 1964 23 Dec 1964 28 Jan 1965 23 Mar 1965 24 Mar 1965] 48147/65 Index F2S 31 [Also in Division B8] A lifting unit, Fig.1, for adjusting the vertical height of a table for chair comprises a cylinder 1 with chambers 2, 3, 4. Chamber 2 contains gas under pressure and is bounded by a floating piston 7. Chambers 3 and 4 contain oil and are separated by a fixed wall 9. A guide 10 with a rod 11 is slidingly arranged in chamber 4. Connection between the chambers 3, 4 is through ports 12, 13 controlled by a slide valve 15 operated manually by a bar 21. In the position shown the chamber 3 is isolated from chamber 4 so that the unit is locked hydraulically. When the valve 15 is moved down so as to connect ports 12, 13 the gas in chamber 2 expands forcing the piston 7 down and transferring oil from chamber 3 to chamber 4, oil also passing from above the guide 10 to below it through a port 22, which may be a throttle port. So that chamber 4 can accommodate the additional oil the rod 11 is forced downwards. The guide 10 may have one or more one-way valves which permit rapid passage of oil during lowering. The chambers 2 and 3 may be separated by a solid or hollow ball 27, Fig.2 (not shown) of resilient material. As shown in Fig. 7 the chambers 2 and 3 may surround the chamber 4 as an outer cylinder. The chambers 2 and 3 may be larger in diameter than the chamber 4, Fig. 8 (not shown). Other types of valve may replace the slide valve 15 to control passage of oil from chamber 3 to chamber 4.
FR46259A 1964-11-14 1965-11-02 Hydraulic lift assembly Expired FR1453681A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DEH54327A DE1301026B (en) 1964-11-14 1964-11-14 Hydropneumatic lifting unit, especially for height-adjustable tables and chairs
DEH0054677 1964-12-23
DEH0055001 1965-01-28
DEH0055540 1965-03-23
DEH0055561 1965-03-24

Publications (1)

Publication Number Publication Date
FR1453681A true FR1453681A (en) 1966-09-23

Family

ID=27512100

Family Applications (1)

Application Number Title Priority Date Filing Date
FR46259A Expired FR1453681A (en) 1964-11-14 1965-11-02 Hydraulic lift assembly

Country Status (9)

Country Link
US (1) US3415159A (en)
AT (1) AT277510B (en)
BE (1) BE672104A (en)
CH (1) CH433649A (en)
DE (5) DE1301026B (en)
FR (1) FR1453681A (en)
GB (1) GB1123030A (en)
NL (1) NL6514704A (en)
NO (1) NO136133C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1812282A1 (en) * 1968-12-03 1970-06-18 Suspa Federungstech Lifting device for continuously adjusting table tops, chair seats and the like.
DE3522722A1 (en) * 1985-06-25 1987-01-08 Otto Guenther Lifting device for the infinitely variable adjustment of table tops, chair seats, backrests of armchairs and the like

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1232598A (en) * 1967-11-13 1971-05-19
US3563349A (en) * 1968-01-24 1971-02-16 Rudolf Spieth Blockable device for the stepless adjustment of flaps
JPS4923879B1 (en) * 1970-07-31 1974-06-19
US3779132A (en) * 1971-07-14 1973-12-18 T Otto Combination air and hydraulic motor
US3871527A (en) * 1973-04-04 1975-03-18 Westinghouse Electric Corp Ram tensioning device
US4091488A (en) * 1977-01-12 1978-05-30 Kelley Company Inc. Dockboard utilizing a gas spring for counterbalancing
DE2948081A1 (en) * 1979-11-29 1981-06-04 Stabilus Gmbh, 5400 Koblenz LENGTH ADJUSTABLE SPRING ELEMENT
DE3040483A1 (en) * 1980-10-28 1982-06-16 Stabilus Gmbh, 5400 Koblenz GAS SPRING WITH HYDRAULIC BLOCKING
JPS57127136A (en) * 1981-01-29 1982-08-07 Tokico Ltd Closed type cylinder device
HU186104B (en) * 1982-08-10 1985-06-28 Arpad Beres Energy storing frame suitable for moving equipments
DE3413781A1 (en) * 1984-04-12 1985-10-24 Hermann Dipl.-Ing. Bansbach (FH), 7073 Lorch Adjustable support
DE3446408C2 (en) * 1984-12-20 1989-06-29 Günther 7307 Aichwald Hahn Lockable gas spring
GB2172373A (en) * 1985-02-27 1986-09-17 Furniture Ind Res Ass Load lifting and support device
DE3519479A1 (en) * 1985-05-31 1986-12-11 Miele & Cie GmbH & Co, 4830 Gütersloh Domestic appliance with adjustable appliance feet
DE3616438A1 (en) * 1986-05-15 1987-11-19 Stabilus Gmbh HYDROPNEUMATIC ADJUSTMENT
SE464057B (en) * 1986-09-08 1991-03-04 Bengt Petersson DEVICE FOR INCREASED HEIGHT ADJUSTMENT OF A CHAIR SEAT
DE3902882A1 (en) * 1989-02-01 1990-08-02 Stabilus Gmbh HYDRAULIC BLOCKABLE GAS SPRINGS
DE3930372A1 (en) * 1989-09-12 1991-03-21 Stabilus Gmbh HYDROPNEUMATIC ADJUSTMENT
US5285877A (en) * 1990-09-22 1994-02-15 Boge Aktiengesellschaft Impact damper
US5115723A (en) * 1991-04-30 1992-05-26 John Wang Height adjusting device
US5913391A (en) * 1997-01-09 1999-06-22 Avm, Inc. Damper
US6027185A (en) * 1997-12-18 2000-02-22 Caterpillar Inc. Recoil and slack adjustment mechanism for an endless track chain of an undercarriage assembly
US20080289327A1 (en) * 2004-10-08 2008-11-27 Rolf Mintgen Linear Drive
CA2507149A1 (en) * 2005-05-12 2006-11-12 P & M Design & Consulting Ltd. Pneumatic cylinder
CN104930015A (en) * 2015-05-13 2015-09-23 中航飞机起落架有限责任公司 Oil gas type load reduction pneumatic actuator cylinder and load reduction method thereof
WO2017106671A1 (en) 2015-12-18 2017-06-22 Graco Minnesota Inc. Bellows anti-rotation construction
JP6853823B2 (en) 2015-12-18 2021-03-31 グラコ ミネソタ インコーポレーテッド Reciprocating pump
CN105615287B (en) * 2016-03-24 2018-02-09 贵州大学 A kind of Pedals type lifting table
CN106593997A (en) * 2016-11-28 2017-04-26 陈干惠 Safe and precise self-locking oil cylinder capable of being flexibly adjusted
US10668968B2 (en) 2017-06-30 2020-06-02 Sram, Llc Seat post assembly
US10549803B2 (en) 2017-06-30 2020-02-04 Sram, Llc Seat post assembly
CN110219856B (en) * 2019-06-21 2024-03-08 宁波威曼智能科技有限公司 Pneumatic lock for cylinder with lock
CN110307208B (en) * 2019-07-12 2020-07-28 柳州市泽盛机械制造有限公司 Sealed multistage hydraulic cylinder
CN110630582B (en) * 2019-09-10 2022-09-06 长沙理工大学 Cylinder energy storage type hydraulic cylinder
DE102021100029A1 (en) * 2020-05-26 2021-12-02 H. Rottländer & A. Seuthe GbR (vertretungsberechtigter Gesellschafter: Hendrik Rottländer, 45277 Essen) Locking system
DE102020211523A1 (en) * 2020-09-14 2022-03-17 Kesseböhmer Holding Kg Gas spring system for a height adjustable table, height adjustable table and method of operating the gas spring system

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US2218963A (en) * 1938-12-13 1940-10-22 Jay G Stephenson Fluid supported stool
US2363142A (en) * 1941-06-05 1944-11-21 Warren B Reed Hydropneumatic pumping jack
US2446127A (en) * 1944-07-06 1948-07-27 Richard R Cramer Adjustable stool
FR953409A (en) * 1947-09-12 1949-12-06 Telescopic device with combined hydro-pneumatic action, applicable in particular to shock absorbers, elevators or others
GB640414A (en) * 1948-03-06 1950-07-19 Mavor & Coulson Ltd Improvements in props
DE819634C (en) * 1950-05-13 1951-11-05 Boge & Sohn G M B H Fluid shock absorbers, especially for road and rail vehicles, with a piston provided with passage valves for the brake fluid and an air-filled compensation chamber
DE924721C (en) * 1952-01-30 1955-03-07 Emil Goelz Telescopic guide
US2721446A (en) * 1952-03-17 1955-10-25 North American Aviation Inc Accumulator-reservoir device
DE967007C (en) * 1952-04-16 1957-09-26 Albert Dillenburger Hydraulic telescopic shock absorber, especially for motor vehicles, whose damping can be regulated from the outside
US2861560A (en) * 1952-07-26 1958-11-25 Alinari Carlo Gun for underwater fishing
US2707002A (en) * 1952-08-30 1955-04-26 Harris Thomas Hydro-pneumatic accumulator
FR1076192A (en) * 1953-02-13 1954-10-25 Blaw Knox Cie Fse Improvements to fluid devices such as jacks, energy accumulators, or shock absorbers for example
US2986158A (en) * 1955-09-03 1961-05-30 Gratzmuller Jean Louis Self-draining hydraulic energy accumulator
US2900972A (en) * 1956-09-24 1959-08-25 De Loss L Marsh Underwater spear gun
US2880746A (en) * 1957-06-07 1959-04-07 Gen Motors Corp Combination accumulator and unloading valve
FR1226787A (en) * 1958-05-10 1960-08-16 Bochumer Ges Fuer Grubenausbau Improvements made to hydraulic props, in particular for galleries or mine corridors
DE1181073B (en) * 1959-03-06 1964-11-05 Karl M Mayer Telescopic hydropneumatic suspension for vehicles
DE1135308B (en) * 1959-03-28 1962-08-23 Hoesch Ag Hydropneumatic strut for vehicles with height compensation
DE1232837B (en) * 1959-06-20 1967-01-19 Stabilus Ind Und Handelsgesell Telescopic fluid shock absorbers, especially for motor vehicles
US2994301A (en) * 1960-01-11 1961-08-01 Kirsch Jerry Reciprocable hydro-pneumatic motor
US3150488A (en) * 1961-11-22 1964-09-29 Emmett L Haley Power devices
AT234949B (en) * 1961-11-27 1964-07-27 Hans Peter Ing Doetsch Adjustment element
US3178167A (en) * 1961-12-30 1965-04-13 Bosch Gmbh Robert Suspension for vehicles or the like
NL293955A (en) * 1962-06-19
DE1503334A1 (en) * 1962-12-03 1969-11-06 Keelavite Hydraulics Ltd Hydraulic device for generating a reciprocating movement
US3237406A (en) * 1962-12-10 1966-03-01 Raymond Int Inc Hydraulic hammer
DE1189871B (en) * 1962-12-11 1965-03-25 Fichtel & Sachs Ag Hydropneumatic vibration damper for motor vehicles
US3267677A (en) * 1963-05-09 1966-08-23 Leo C Bollar Impact forming machine
FR1365427A (en) * 1963-05-20 1964-07-03 Height adjustment device, especially for seats

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1812282A1 (en) * 1968-12-03 1970-06-18 Suspa Federungstech Lifting device for continuously adjusting table tops, chair seats and the like.
FR2025110A1 (en) * 1968-12-03 1970-09-04 Suspa Federungstech
DE3522722A1 (en) * 1985-06-25 1987-01-08 Otto Guenther Lifting device for the infinitely variable adjustment of table tops, chair seats, backrests of armchairs and the like

Also Published As

Publication number Publication date
NO136133C (en) 1977-07-27
DE1554257A1 (en) 1970-03-05
BE672104A (en) 1966-03-01
DE1554251A1 (en) 1970-03-05
NL6514704A (en) 1966-05-16
CH433649A (en) 1967-04-15
US3415159A (en) 1968-12-10
DE1554258A1 (en) 1969-05-22
GB1123030A (en) 1968-08-07
DE1429576A1 (en) 1970-01-29
DE1301026B (en) 1969-08-14
NO136133B (en) 1977-04-18
AT277510B (en) 1969-12-29

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