EP1669612A3 - Linear cylinder unit with locking means - Google Patents

Linear cylinder unit with locking means Download PDF

Info

Publication number
EP1669612A3
EP1669612A3 EP05111866A EP05111866A EP1669612A3 EP 1669612 A3 EP1669612 A3 EP 1669612A3 EP 05111866 A EP05111866 A EP 05111866A EP 05111866 A EP05111866 A EP 05111866A EP 1669612 A3 EP1669612 A3 EP 1669612A3
Authority
EP
European Patent Office
Prior art keywords
piston
piston rod
cylinder
locking unit
linear
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.)
Withdrawn
Application number
EP05111866A
Other languages
German (de)
French (fr)
Other versions
EP1669612A2 (en
Inventor
Lennart Forsberg
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.)
Bosch Rexroth Teknik AB
Original Assignee
Bosch Rexroth Teknik AB
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 Bosch Rexroth Teknik AB filed Critical Bosch Rexroth Teknik AB
Publication of EP1669612A2 publication Critical patent/EP1669612A2/en
Publication of EP1669612A3 publication Critical patent/EP1669612A3/en
Withdrawn legal-status Critical Current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
    • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions

Abstract

Linear cylinder unit (1), in particular a pressure cylinder (2), comprising a cylinder tube (3), at least one end cover member (4), a piston (5), which is axial displaceable within said cylinder tube (3), a piston rod (6), which is connected to said piston (5) and at least one piston locking unit (7), whereas said piston locking unit (7) is arranged on at least one end of the body of the said pressure cylinder (2), whereas the piston locking unit (7) comprises a locking element (8), which is linear movable in a perpendicularly direction to the piston rod (6), in order to achieve a form- fitted connection between the piston rod (6) and the locking element (8), whereas the said locking element (8) features a plane profile including a bore (10), where the piston rod (6) is guided through, whereas the edge of the bore (10) engages in at least one recess (18) arranged in the said piston rod (6), in order to block the movement of the piston rod (6). By this invention the objective can be reached, to provide a linear cylinder locking unit, which offers a high accessibility, an optional removability and which features the transmission of high blocking forces through a high contact area and with a high stiffness.
EP05111866A 2004-12-09 2005-12-08 Linear cylinder unit with locking means Withdrawn EP1669612A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004059201A DE102004059201A1 (en) 2004-12-09 2004-12-09 Linear cylinder unit

Publications (2)

Publication Number Publication Date
EP1669612A2 EP1669612A2 (en) 2006-06-14
EP1669612A3 true EP1669612A3 (en) 2008-01-23

Family

ID=35849557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05111866A Withdrawn EP1669612A3 (en) 2004-12-09 2005-12-08 Linear cylinder unit with locking means

Country Status (2)

Country Link
EP (1) EP1669612A3 (en)
DE (1) DE102004059201A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102011764A (en) * 2010-06-05 2011-04-13 常州液压成套设备厂有限公司 Hydraulic cylinder locking device
CN103148050A (en) * 2011-12-06 2013-06-12 北京市三一重机有限公司 Hydraulic cylinder and hydraulic system

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO329856B1 (en) * 2007-07-03 2011-01-17 Nat Oilwell Norway As Load for axial loading of a piston rod coupling of a hydraulic cylinder to the cylinder housing of the hydraulic cylinder
CN101725590B (en) * 2009-11-30 2011-11-16 南京康尼机电股份有限公司 Air driving device with locking unit
CN104006022A (en) * 2014-05-29 2014-08-27 芜湖市银鸿液压件有限公司 Hydraulic cylinder capable of automatically and mechanically locating lift dam in reciprocating manner
CN105114396A (en) * 2015-09-18 2015-12-02 常州液压成套设备厂有限公司 Locking device of hydraulic oil cylinder of hydraulic hoist
CN105422548B (en) * 2015-12-29 2017-08-25 常州液压成套设备厂有限公司 The rotary locking device of oil cylinder of hydraulic headstock gear
CN109798280A (en) * 2019-01-25 2019-05-24 新昌县三特自动化科技有限公司 The automatic locking mechanism of servo-cylinder
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
IT202100007511A1 (en) * 2021-03-26 2022-09-26 Pneumax S P A ARTICULATED LEVER OR CAM TYPE ACTUATION UNIT WITH INTEGRATED SELF-RETAINING UNIT
CN113294402A (en) * 2021-06-23 2021-08-24 乐清市恒一气动有限公司 Self-locking air cylinder

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453937A (en) * 1967-09-14 1969-07-08 Lionel Pacific Inc Hydraulic actuator with proximity sensor of locked condition
US4295413A (en) * 1976-06-18 1981-10-20 Teijin Seiki Company, Limited Hydraulic actuator
EP0458051A1 (en) * 1990-05-23 1991-11-27 Knorr-Bremse Ag Actuating cylinder, particularly door lock cylinder for rail vehicles
DE19521783A1 (en) * 1994-07-13 1996-01-18 Hoerbiger Ventilwerke Ag Hydraulic working cylinder, e.g. for siding roof of motor vehicle
DE4427734A1 (en) * 1994-08-05 1996-02-15 Wolfgang Dipl Ing Niemann Drive ram for presses, stamping and embossing machines etc.
WO2001092732A1 (en) * 2000-05-31 2001-12-06 Razorback Vehicles Corporation Limited A hydraulic or pneumatic cylinder
US20020069680A1 (en) * 2000-12-11 2002-06-13 Smc Kabushiki Kaisha Cylinder apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3453937A (en) * 1967-09-14 1969-07-08 Lionel Pacific Inc Hydraulic actuator with proximity sensor of locked condition
US4295413A (en) * 1976-06-18 1981-10-20 Teijin Seiki Company, Limited Hydraulic actuator
EP0458051A1 (en) * 1990-05-23 1991-11-27 Knorr-Bremse Ag Actuating cylinder, particularly door lock cylinder for rail vehicles
DE19521783A1 (en) * 1994-07-13 1996-01-18 Hoerbiger Ventilwerke Ag Hydraulic working cylinder, e.g. for siding roof of motor vehicle
DE4427734A1 (en) * 1994-08-05 1996-02-15 Wolfgang Dipl Ing Niemann Drive ram for presses, stamping and embossing machines etc.
WO2001092732A1 (en) * 2000-05-31 2001-12-06 Razorback Vehicles Corporation Limited A hydraulic or pneumatic cylinder
US20020069680A1 (en) * 2000-12-11 2002-06-13 Smc Kabushiki Kaisha Cylinder apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102011764A (en) * 2010-06-05 2011-04-13 常州液压成套设备厂有限公司 Hydraulic cylinder locking device
CN103148050A (en) * 2011-12-06 2013-06-12 北京市三一重机有限公司 Hydraulic cylinder and hydraulic system
CN103148050B (en) * 2011-12-06 2017-01-25 北京市三一重机有限公司 Hydraulic cylinder and hydraulic system

Also Published As

Publication number Publication date
EP1669612A2 (en) 2006-06-14
DE102004059201A1 (en) 2006-06-22

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