DE50101629D1 - LIFTING DEVICE - Google Patents

LIFTING DEVICE

Info

Publication number
DE50101629D1
DE50101629D1 DE50101629T DE50101629T DE50101629D1 DE 50101629 D1 DE50101629 D1 DE 50101629D1 DE 50101629 T DE50101629 T DE 50101629T DE 50101629 T DE50101629 T DE 50101629T DE 50101629 D1 DE50101629 D1 DE 50101629D1
Authority
DE
Germany
Prior art keywords
piston
valve unit
space
cavity
cylinder
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 - Fee Related
Application number
DE50101629T
Other languages
German (de)
Inventor
Klaus Brugger
Georg Maximilian Brugger
Christina Brugger
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 DE50101629T priority Critical patent/DE50101629D1/en
Application granted granted Critical
Publication of DE50101629D1 publication Critical patent/DE50101629D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F15B15/08—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
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • 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
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Advancing Webs (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Noodles (AREA)
  • Tumbler Switches (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Braking Arrangements (AREA)
  • Types And Forms Of Lifts (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The invention relates to a lifting device comprising a cylinder (102) with a cavity (104). A piston element (106) is arranged in the cavity (104) of the cylinder (102) and comprises a piston section (110) and a rod section (112). The piston section (110) subdivides the cavity of the cylinder into a piston-head space (114) and into a piston ring-space (116). A valve unit (118) is assigned to the piston element (106) and is closed until a predetermined pressure in the piston-head space (114) is reached in order to separate the piston-head space (114) from the piston-ring space (116). Otherwise, the valve unit (118) can be freely flown through. The valve unit (118) is arranged such that a pressure in the piston-ring space (116) does not act on the valve unit (118) in a direction along which the piston element (104) can be displaced.
DE50101629T 2000-06-21 2001-06-20 LIFTING DEVICE Expired - Fee Related DE50101629D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE50101629T DE50101629D1 (en) 2000-06-21 2001-06-20 LIFTING DEVICE

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10030545A DE10030545A1 (en) 2000-06-21 2000-06-21 lifting device
DE50101629T DE50101629D1 (en) 2000-06-21 2001-06-20 LIFTING DEVICE
PCT/EP2001/006985 WO2001098671A1 (en) 2000-06-21 2001-06-20 Lifting device

Publications (1)

Publication Number Publication Date
DE50101629D1 true DE50101629D1 (en) 2004-04-08

Family

ID=7646490

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10030545A Withdrawn DE10030545A1 (en) 2000-06-21 2000-06-21 lifting device
DE50101629T Expired - Fee Related DE50101629D1 (en) 2000-06-21 2001-06-20 LIFTING DEVICE

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10030545A Withdrawn DE10030545A1 (en) 2000-06-21 2000-06-21 lifting device

Country Status (9)

Country Link
EP (1) EP1295042B8 (en)
AT (1) ATE261068T1 (en)
AU (1) AU2001272496A1 (en)
DE (2) DE10030545A1 (en)
DK (1) DK1295042T3 (en)
ES (1) ES2215917T3 (en)
PT (1) PT1295042E (en)
TR (1) TR200401212T4 (en)
WO (1) WO2001098671A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0513278D0 (en) 2005-07-01 2005-08-03 Delphi Tech Inc Head restraint system
WO2007003267A2 (en) * 2005-07-01 2007-01-11 Delphi Technologies, Inc. Triggering device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1812577A (en) * 1928-04-27 1931-06-30 Rogers Products Company Inc Lifting jack
FR1067966A (en) * 1951-09-11 1954-06-21 Sperry Gyroscope Co Ltd Hydraulic servomotor usable in particular with automatic pilot devices for airplanes
US3450006A (en) * 1968-01-29 1969-06-17 Timberjack Machines Ltd Cylinder and piston assembly with automatic power release
FR2547290B1 (en) * 1983-06-07 1987-04-30 Rassant Sa Ets F HYDRAULIC JACK WITH IMPROVED TRAVEL LIMITER
DE19627974C2 (en) * 1996-07-11 2003-02-06 Getrag Getriebe Zahnrad Hydraulic actuator and method for bleeding a hydraulic actuator
DE29900850U1 (en) * 1999-01-20 1999-04-29 Festo Ag & Co Fluid operated linear actuator

Also Published As

Publication number Publication date
ES2215917T3 (en) 2004-10-16
WO2001098671A1 (en) 2001-12-27
ATE261068T1 (en) 2004-03-15
DK1295042T3 (en) 2004-07-12
EP1295042B1 (en) 2004-03-03
DE10030545A1 (en) 2002-01-10
AU2001272496A1 (en) 2002-01-02
PT1295042E (en) 2004-07-30
EP1295042B8 (en) 2004-09-15
EP1295042A1 (en) 2003-03-26
TR200401212T4 (en) 2004-08-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee
8370 Indication related to discontinuation of the patent is to be deleted
8339 Ceased/non-payment of the annual fee