EP1788257A3 - Fluid pressure actuator with end of stroke locking means - Google Patents

Fluid pressure actuator with end of stroke locking means Download PDF

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Publication number
EP1788257A3
EP1788257A3 EP06021249A EP06021249A EP1788257A3 EP 1788257 A3 EP1788257 A3 EP 1788257A3 EP 06021249 A EP06021249 A EP 06021249A EP 06021249 A EP06021249 A EP 06021249A EP 1788257 A3 EP1788257 A3 EP 1788257A3
Authority
EP
European Patent Office
Prior art keywords
locking means
fluid pressure
pressure actuator
fluid
stroke locking
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
EP06021249A
Other languages
German (de)
French (fr)
Other versions
EP1788257A2 (en
EP1788257B1 (en
Inventor
Richard Buczek
Steffen Göggerle
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.)
Festo SE and Co KG
Original Assignee
Festo SE and Co 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 Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP1788257A2 publication Critical patent/EP1788257A2/en
Publication of EP1788257A3 publication Critical patent/EP1788257A3/en
Application granted granted Critical
Publication of EP1788257B1 publication Critical patent/EP1788257B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/223—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which completely seals the main fluid outlet as the piston approaches its end position

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Es wird ein fluidbetätigter Arbeitszylinder (1) vorgeschlagen, der mit Dämpfungsmitteln (23) ausgestattet ist, um die Geschwindigkeit der Antriebseinheit (13) während einer Dämpfungsphase herabzusetzen. Zusätzlich vorhandene Endlagen-Verriegelungsmittel (42) enthalten ein Verriegelungsglied (44), das mit der Antriebseinheit (13) in Eingriff gelangen kann, während der Dämpfungsphase jedoch durch Fluidkraft in einer Freigabestellung gehalten wird. Diese Fluidkraft wird zumindest teilweise von einem aus der abströmseitigen Arbeitskammer (12a) des Arbeitszylinders abgezweigten Fluid aufgebracht.

Figure imgaf001
A fluid-actuated working cylinder (1) is proposed, which is equipped with damping means (23) in order to reduce the speed of the drive unit (13) during a damping phase. Additional end-position locking means (42) include a locking member (44) which is engageable with the drive unit (13) while the damping phase is maintained in a release position by fluid force. This fluid force is at least partially applied by a fluid branched off from the outflow-side working chamber (12a) of the working cylinder.
Figure imgaf001
EP06021249A 2005-11-18 2006-10-10 Fluid pressure actuator with end of stroke locking means Expired - Fee Related EP1788257B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520018038 DE202005018038U1 (en) 2005-11-18 2005-11-18 Fluid operated cylinder with end position lock

Publications (3)

Publication Number Publication Date
EP1788257A2 EP1788257A2 (en) 2007-05-23
EP1788257A3 true EP1788257A3 (en) 2009-09-02
EP1788257B1 EP1788257B1 (en) 2012-03-21

Family

ID=35669175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06021249A Expired - Fee Related EP1788257B1 (en) 2005-11-18 2006-10-10 Fluid pressure actuator with end of stroke locking means

Country Status (2)

Country Link
EP (1) EP1788257B1 (en)
DE (1) DE202005018038U1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8261655B2 (en) 2006-07-28 2012-09-11 Norgren Gmbh Locking piston assembly
DE102009032077B4 (en) * 2009-07-07 2013-08-01 Airbus Operations Gmbh End position damped hydraulic actuator
CN102367821B (en) * 2011-10-19 2013-10-09 台州市黄岩西诺模具有限公司 Strong self-lock oil cylinder
DE102012013767A1 (en) * 2012-07-11 2014-01-16 Liebherr-Components Biberach Gmbh Wind energy plant with a pitch adjustment system
US9291176B2 (en) * 2013-01-30 2016-03-22 Messier-Dowty Inc. Locking mechanism for locking an actuator
CN103899595B (en) * 2014-03-28 2016-03-09 哈尔滨工程大学 One can arbitrary position locking type hydraulic cylinder
DE102015214895A1 (en) 2015-08-05 2017-02-09 Festo Ag & Co. Kg Fluid actuated working cylinder
CN105402203A (en) * 2015-12-07 2016-03-16 郑州宇通重工有限公司 Oil cylinder tail end automatic lockup valve and hydraulic oil cylinder with oil cylinder tail end automatic lockup valve
NO20180431A1 (en) * 2018-03-27 2019-09-30 Mhwirth As Fingerboard latch arrangement
IT201900006566A1 (en) * 2019-05-06 2020-11-06 Camozzi Automation S P A CYLINDER WITH ROD LOCK DEVICE
IT202100004592A1 (en) * 2021-02-26 2022-08-26 Camozzi Automation S P A CYLINDER WITH ROD LOCK DEVICE
CA3212573A1 (en) * 2021-03-23 2022-09-29 Prasanna V. Kulkarni Hydraulic cylinder snubbing retention arrangement
CN117345730B (en) * 2023-11-20 2024-03-19 江苏亚力亚气动液压成套设备有限公司 Double self-locking hydraulic cylinder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB564581A (en) * 1942-02-26 1944-10-04 Bendix Aviat Corp Improvements in or relating to hydraulic jacks and the like
DE2146592A1 (en) * 1971-09-17 1973-03-22 Westinghouse Bremsen Apparate PRESSURIZED WORK CYLINDER WITH END-POSITIONING LOCK
EP0246736A1 (en) * 1986-03-22 1987-11-25 Colt International Holdings A.G. Pneumatic double acting piston and cylinder device
EP0639120B1 (en) * 1993-03-03 1997-12-10 FESTO AG & Co Machine-tool

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3889576A (en) * 1969-06-13 1975-06-17 Sheffer Corp Locking cylinder with improved locking structure
US4524676A (en) 1984-01-19 1985-06-25 American Standard Inc. Hydraulic cylinder locking device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB564581A (en) * 1942-02-26 1944-10-04 Bendix Aviat Corp Improvements in or relating to hydraulic jacks and the like
DE2146592A1 (en) * 1971-09-17 1973-03-22 Westinghouse Bremsen Apparate PRESSURIZED WORK CYLINDER WITH END-POSITIONING LOCK
EP0246736A1 (en) * 1986-03-22 1987-11-25 Colt International Holdings A.G. Pneumatic double acting piston and cylinder device
EP0639120B1 (en) * 1993-03-03 1997-12-10 FESTO AG & Co Machine-tool

Also Published As

Publication number Publication date
EP1788257A2 (en) 2007-05-23
EP1788257B1 (en) 2012-03-21
DE202005018038U1 (en) 2006-01-12

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