EP1662152A3 - Locking unit for a linear pressure cylinder - Google Patents

Locking unit for a linear pressure cylinder Download PDF

Info

Publication number
EP1662152A3
EP1662152A3 EP05111432A EP05111432A EP1662152A3 EP 1662152 A3 EP1662152 A3 EP 1662152A3 EP 05111432 A EP05111432 A EP 05111432A EP 05111432 A EP05111432 A EP 05111432A EP 1662152 A3 EP1662152 A3 EP 1662152A3
Authority
EP
European Patent Office
Prior art keywords
locking unit
lock ring
ring element
piston rod
pressure 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.)
Withdrawn
Application number
EP05111432A
Other languages
German (de)
French (fr)
Other versions
EP1662152A2 (en
Inventor
Bo Disbo
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 EP1662152A2 publication Critical patent/EP1662152A2/en
Publication of EP1662152A3 publication Critical patent/EP1662152A3/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Withdrawn legal-status Critical Current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
    • F15B15/262—Locking mechanisms using friction, e.g. brake pads

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Clamps And Clips (AREA)
  • Actuator (AREA)

Abstract

Locking unit (1), in particular for a linear pressure cylinder (6), arranged inside and/or at the end of the linear pressure cylinder (6), comprising at least one lock ring element (2) for clamping a piston rod (3), whereby the piston rod (3) is guided through the locking unit (1), comprising a spring member (7) biasing the lock ring element (2) into a clamping position and a pressure chamber (4), connected to at least one releasing means (12) for a pressurising medium and/or a mechanical releasing device, configured for moving the lock ring element (2) into a releasing position, whereby the at least one lock ring element (2) is in an unadjusted floating position, whereby a centring of the lock ring element (2) relative to the piston rod (3) is ensured by at least one sealing element (10, 11). By this invention the objective can be reached, to provide a locking unit, which offers a simple construction and provides a blocking effect in both directions of the piston rod movement.
EP05111432A 2004-11-30 2005-11-29 Locking unit for a linear pressure cylinder Withdrawn EP1662152A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410057581 DE102004057581B4 (en) 2004-11-30 2004-11-30 Locking unit, in particular for pressure cylinder

Publications (2)

Publication Number Publication Date
EP1662152A2 EP1662152A2 (en) 2006-05-31
EP1662152A3 true EP1662152A3 (en) 2008-01-23

Family

ID=35848997

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05111432A Withdrawn EP1662152A3 (en) 2004-11-30 2005-11-29 Locking unit for a linear pressure cylinder

Country Status (2)

Country Link
EP (1) EP1662152A3 (en)
DE (1) DE102004057581B4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI644755B (en) * 2017-04-17 2018-12-21 吳亞爵 Indexing chuck

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015698A (en) * 1975-06-16 1977-04-05 William Sousamian Actuating mechanism for pressurized fluid brake system and fail-safe locking device therefor
WO1993012346A1 (en) * 1991-12-13 1993-06-24 Ultimate Support Systems, Inc. High load safety clutch mechanism for use with telescopically extensible utility poles
US5823300A (en) * 1995-01-31 1998-10-20 Pubot Giken Co., Ltd. Brake device of linear moving body
DE19719952A1 (en) * 1997-05-14 1998-11-19 Weiss Maschf Johann Piston rod brake
US6308613B1 (en) * 1999-02-25 2001-10-30 Smc Corporation Fluid pressure cylinder having lock mechanism
US20020127052A1 (en) * 2001-03-08 2002-09-12 Smc Kabushiki Kaisha Mechanism for keeping lock device released

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4214795A (en) * 1977-11-25 1980-07-29 Shoketsu Kinzoku Kogyo Kabushiki Kaisha Piston braking device for hydraulic or pneumatic cylinders

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015698A (en) * 1975-06-16 1977-04-05 William Sousamian Actuating mechanism for pressurized fluid brake system and fail-safe locking device therefor
WO1993012346A1 (en) * 1991-12-13 1993-06-24 Ultimate Support Systems, Inc. High load safety clutch mechanism for use with telescopically extensible utility poles
US5823300A (en) * 1995-01-31 1998-10-20 Pubot Giken Co., Ltd. Brake device of linear moving body
DE19719952A1 (en) * 1997-05-14 1998-11-19 Weiss Maschf Johann Piston rod brake
US6308613B1 (en) * 1999-02-25 2001-10-30 Smc Corporation Fluid pressure cylinder having lock mechanism
US20020127052A1 (en) * 2001-03-08 2002-09-12 Smc Kabushiki Kaisha Mechanism for keeping lock device released

Also Published As

Publication number Publication date
EP1662152A2 (en) 2006-05-31
DE102004057581B4 (en) 2008-07-03
DE102004057581A1 (en) 2006-06-01

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