EP1744062A3 - Actuator with dampening at the end of stroke - Google Patents

Actuator with dampening at the end of stroke Download PDF

Info

Publication number
EP1744062A3
EP1744062A3 EP06012469A EP06012469A EP1744062A3 EP 1744062 A3 EP1744062 A3 EP 1744062A3 EP 06012469 A EP06012469 A EP 06012469A EP 06012469 A EP06012469 A EP 06012469A EP 1744062 A3 EP1744062 A3 EP 1744062A3
Authority
EP
European Patent Office
Prior art keywords
piston
casing
opening
dampening
stroke
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
EP06012469A
Other languages
German (de)
French (fr)
Other versions
EP1744062B1 (en
EP1744062A2 (en
Inventor
Ralph Riedel
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.)
Norgren GmbH
Original Assignee
Norgren GmbH
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 Norgren GmbH filed Critical Norgren GmbH
Publication of EP1744062A2 publication Critical patent/EP1744062A2/en
Publication of EP1744062A3 publication Critical patent/EP1744062A3/en
Application granted granted Critical
Publication of EP1744062B1 publication Critical patent/EP1744062B1/en
Not-in-force 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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/082—Characterised by the construction of the motor unit the motor being of the slotted cylinder type
    • 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
    • F15B15/222—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 throttles the main fluid outlet as the piston approaches its end position

Abstract

The cylinder has a piston (4) supported in a longitudinal displaceable manner between two end positions. A damping device for damping the movement of the piston has a retaining opening (15) and a casing (19), in which the opening is provided at an end part. The opening and the casing are inserted into one another in the piston movement direction, where the casing is movable to an end position during the convergence of the piston at its end positions. The casing is movable to another end position and again returns to its initial position, when the piston moves away from its end position.
EP06012469A 2005-07-14 2006-06-17 Actuator with dampening at the end of stroke Not-in-force EP1744062B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005032853A DE102005032853B3 (en) 2005-07-14 2005-07-14 Working cylinder with cushioning

Publications (3)

Publication Number Publication Date
EP1744062A2 EP1744062A2 (en) 2007-01-17
EP1744062A3 true EP1744062A3 (en) 2009-07-22
EP1744062B1 EP1744062B1 (en) 2011-11-23

Family

ID=37076268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06012469A Not-in-force EP1744062B1 (en) 2005-07-14 2006-06-17 Actuator with dampening at the end of stroke

Country Status (7)

Country Link
US (1) US7581485B2 (en)
EP (1) EP1744062B1 (en)
CN (1) CN1896552A (en)
AT (1) ATE534825T1 (en)
DE (1) DE102005032853B3 (en)
DK (1) DK1744062T3 (en)
ES (1) ES2378077T3 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008133920A (en) * 2006-11-29 2008-06-12 Smc Corp Hydraulic cylinder
WO2008116487A1 (en) * 2007-03-28 2008-10-02 Norgren Gmbh Piston support portion for a piston assembly of a rodless cylinder
DE102009016198B4 (en) 2009-04-03 2013-01-17 Festo Ag & Co. Kg Fluid operated linear actuator with end position damping
JP5360564B2 (en) 2009-06-03 2013-12-04 Ｓｍｃ株式会社 Air cushion mechanism of pneumatic cylinder
DE102009056496A1 (en) 2009-12-01 2011-08-04 FESTO AG & Co. KG, 73734 Throttle valve for use in fluid-operated working cylinder, has valve whose mounting membrane is fixed to fastening sleeve and supporting throttle body such that membrane has elastic deformation while changing throttle position of body
CN102155457B (en) * 2010-07-23 2012-07-18 三一重工股份有限公司 Hydraulic oil cylinder, hydraulic buffering system, excavator and concrete pump truck
CN102108991B (en) * 2010-07-23 2012-09-12 三一重工股份有限公司 Hydraulic cylinder, hydraulic buffer system, excavator and concrete pump truck
CN102108989B (en) * 2010-07-23 2011-12-28 三一重工股份有限公司 Hydrocylinder and related devices thereof, hydraulic buffer system, excavating machine and concrete pump truck
CN102155458B (en) * 2010-07-23 2012-07-04 三一重工股份有限公司 Hydraulic oil cylinder and related devices of hydraulic oil cylinder, and hydraulic buffer system, excavator and concrete pump truck
WO2012041786A1 (en) * 2010-09-28 2012-04-05 Norgren Gmbh Damping cylinder
US20130228070A1 (en) * 2010-11-15 2013-09-05 Volvo Construction Equipment Ab Hydraulic cylinder with variable cushion orifice
CN102705299A (en) * 2012-05-17 2012-10-03 太仓奥科机械设备有限公司 Buffering device for air cylinder
CN102852895B (en) * 2012-09-29 2015-07-15 深圳市华星光电技术有限公司 Air cylinder
US9103357B2 (en) 2012-09-29 2015-08-11 Shenzhen China Star Optoelectronics Technology Co., Ltd Cylinder
CN106545547A (en) * 2015-09-19 2017-03-29 嘉兴大道锻造技术咨询有限公司 A kind of bounce cylinder
CN106593989B (en) * 2017-02-04 2018-08-31 三一汽车制造有限公司 A kind of hydraulic cylinder, hydraulic system and engineering machinery
IT201900001511A1 (en) * 2019-02-01 2020-08-01 Cnh Ind Italia Spa IMPROVED HYDRAULIC CYLINDER FOR WORK VEHICLE
JP7447689B2 (en) * 2020-06-10 2024-03-12 Smc株式会社 gas cylinder
JP7323103B2 (en) * 2020-07-22 2023-08-08 Smc株式会社 hydraulic cylinder
EP4226051A4 (en) * 2020-10-08 2023-11-15 Pimatic Oy Arrangement in a pneumatic cylinder
CN113931961B (en) * 2021-09-09 2023-03-28 神龙汽车有限公司 Novel hydraulic self-adaptive damping adjustment shock absorber

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196753A (en) * 1963-05-21 1965-07-27 Tomkins Johnson Co Cushion control and surge relief
US3999463A (en) * 1975-02-27 1976-12-28 Componetrol, Inc. Fluid motor construction
EP0260344A2 (en) * 1986-09-17 1988-03-23 NORGREN MARTONAIR EUROPA GmbH Pressure fluid cylinder
DE3818833A1 (en) * 1988-06-03 1989-02-02 Dimter Erwin Piston for pneumatic cylinders, especially cylinders without a piston rod
DE29706364U1 (en) * 1997-04-10 1997-06-19 Buemach Engineering Internatio End position damped working cylinder
JPH11132203A (en) * 1997-10-28 1999-05-18 Hitachi Constr Mach Co Ltd Cushioning device for hydraulic cylinder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786452A (en) * 1954-11-29 1957-03-26 Hannifin Corp Fluid actuated cylinder having fluid cushion means
US3067726A (en) * 1961-02-27 1962-12-11 Int Basic Economy Corp Cushioning structure for fluid power cylinders
SE347046B (en) * 1969-11-07 1972-07-24 Monsun Tison Ab
US4301714A (en) * 1979-05-24 1981-11-24 Ab Mecman Damping device in pressurized fluid cylinders
SE467424B (en) * 1990-11-09 1992-07-13 Mecman Ab DEVICE FOR ABSORPTION ATTRACTION AND SPEED CONTROL OF A MOVEMENT OF A PISTON IN A PRESSURE CYLINDER
GB9421002D0 (en) * 1994-10-18 1994-12-07 Norgren Martonair Gmbh Fluid powered cylinder
DE20021520U1 (en) * 2000-12-20 2001-03-01 Imi Norgren Gmbh Media-operated cylinder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196753A (en) * 1963-05-21 1965-07-27 Tomkins Johnson Co Cushion control and surge relief
US3999463A (en) * 1975-02-27 1976-12-28 Componetrol, Inc. Fluid motor construction
EP0260344A2 (en) * 1986-09-17 1988-03-23 NORGREN MARTONAIR EUROPA GmbH Pressure fluid cylinder
DE3818833A1 (en) * 1988-06-03 1989-02-02 Dimter Erwin Piston for pneumatic cylinders, especially cylinders without a piston rod
DE29706364U1 (en) * 1997-04-10 1997-06-19 Buemach Engineering Internatio End position damped working cylinder
JPH11132203A (en) * 1997-10-28 1999-05-18 Hitachi Constr Mach Co Ltd Cushioning device for hydraulic cylinder

Also Published As

Publication number Publication date
EP1744062B1 (en) 2011-11-23
US20070012532A1 (en) 2007-01-18
ES2378077T3 (en) 2012-04-04
EP1744062A2 (en) 2007-01-17
ATE534825T1 (en) 2011-12-15
DE102005032853B3 (en) 2007-02-08
DK1744062T3 (en) 2011-12-19
CN1896552A (en) 2007-01-17
US7581485B2 (en) 2009-09-01

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