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EP1605171A3 - Fluid pressure-actuated cylinder with mechanical locking - Google Patents

Fluid pressure-actuated cylinder with mechanical locking Download PDF

Info

Publication number
EP1605171A3
EP1605171A3 EP05008964A EP05008964A EP1605171A3 EP 1605171 A3 EP1605171 A3 EP 1605171A3 EP 05008964 A EP05008964 A EP 05008964A EP 05008964 A EP05008964 A EP 05008964A EP 1605171 A3 EP1605171 A3 EP 1605171A3
Authority
EP
European Patent Office
Prior art keywords
orientated
fluid pressure
spindle
mechanical locking
actuated 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.)
Granted
Application number
EP05008964A
Other languages
German (de)
French (fr)
Other versions
EP1605171A2 (en
EP1605171B1 (en
Inventor
Josef Büter
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.)
Buemach Engineering International BV
Original Assignee
Buemach Engineering International BV
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 Buemach Engineering International BV filed Critical Buemach Engineering International BV
Publication of EP1605171A2 publication Critical patent/EP1605171A2/en
Publication of EP1605171A3 publication Critical patent/EP1605171A3/en
Application granted granted Critical
Publication of EP1605171B1 publication Critical patent/EP1605171B1/en
Anticipated expiration legal-status Critical
Not-in-force 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/004—Fluid pressure supply failure
    • 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
    • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
    • 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
    • F15B15/262—Locking mechanisms using friction, e.g. brake pads
    • F15B15/264—Screw mechanisms attached to the piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Actuator (AREA)
  • Press Drives And Press Lines (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)

Abstract

The working cylinder (1) operated by pressure medium and with an integrated blocking system (4) for mechanical travel locking has a threaded spindle (6) interacting with the female thread of a piston, and an axially movable locking disc (5) is fitted on the bottom end of the spindle. A blocking sleeve as a concentric double-collared sleeve (17) inside the rotating spindle acts as a fluid guide for the separation of the pressure-orientated inflow to the delivery-orientated outflow during axial flow of the two main streams of a pressurized flow consumer.
EP05008964A 2004-06-11 2005-04-23 Fluid pressure-actuated cylinder with mechanical locking Not-in-force EP1605171B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202004009302U DE202004009302U1 (en) 2004-06-11 2004-06-11 Pressurized cylinder with mechanical travel lock in the depressurized state
DE202004009302U 2004-06-11

Publications (3)

Publication Number Publication Date
EP1605171A2 EP1605171A2 (en) 2005-12-14
EP1605171A3 true EP1605171A3 (en) 2006-09-06
EP1605171B1 EP1605171B1 (en) 2008-09-17

Family

ID=32921427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05008964A Not-in-force EP1605171B1 (en) 2004-06-11 2005-04-23 Fluid pressure-actuated cylinder with mechanical locking

Country Status (3)

Country Link
EP (1) EP1605171B1 (en)
AT (1) ATE408759T1 (en)
DE (2) DE202004009302U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005020365U1 (en) * 2005-12-29 2006-02-23 Bümach Engineering International B.V. Pressure-medium-operated working cylinder with mechanical path blocking in the unpressurized state
DE102006030617B4 (en) * 2005-12-29 2009-09-10 Bümach Engineering International B.V. Pressure-medium-operated working cylinder with mechanical path blocking in the unpressurized state
CN102878150A (en) * 2012-09-29 2013-01-16 江苏昌力油缸有限公司 Lockable lift cylinder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB683633A (en) * 1949-02-25 1952-12-03 Gen Motors Corp Improved fluid-pressure actuator
GB725003A (en) * 1952-03-27 1955-03-02 Gen Motors Corp Improved fluid-pressure actuator
US2804053A (en) * 1954-04-14 1957-08-27 Gen Motors Corp Actuator and locking means therefor
US3442176A (en) * 1967-05-01 1969-05-06 Gen Electric Actuator locking mechanism
EP1170512A1 (en) * 2000-07-06 2002-01-09 Bümach Engineering International B.V. Fluid pressure actuator with mechanical locking device when unpressurized
EP1310681A2 (en) * 2001-11-13 2003-05-14 ROLFO S.p.A. Linear actuator with internal mechanical locking

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB683633A (en) * 1949-02-25 1952-12-03 Gen Motors Corp Improved fluid-pressure actuator
GB725003A (en) * 1952-03-27 1955-03-02 Gen Motors Corp Improved fluid-pressure actuator
US2804053A (en) * 1954-04-14 1957-08-27 Gen Motors Corp Actuator and locking means therefor
US3442176A (en) * 1967-05-01 1969-05-06 Gen Electric Actuator locking mechanism
EP1170512A1 (en) * 2000-07-06 2002-01-09 Bümach Engineering International B.V. Fluid pressure actuator with mechanical locking device when unpressurized
EP1310681A2 (en) * 2001-11-13 2003-05-14 ROLFO S.p.A. Linear actuator with internal mechanical locking

Also Published As

Publication number Publication date
EP1605171A2 (en) 2005-12-14
DE202004009302U1 (en) 2004-08-26
DE502005005378D1 (en) 2008-10-30
ATE408759T1 (en) 2008-10-15
EP1605171B1 (en) 2008-09-17

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