DE3561349D1 - Locking device for a movable rod in a body - Google Patents

Locking device for a movable rod in a body

Info

Publication number
DE3561349D1
DE3561349D1 DE8585112502T DE3561349T DE3561349D1 DE 3561349 D1 DE3561349 D1 DE 3561349D1 DE 8585112502 T DE8585112502 T DE 8585112502T DE 3561349 T DE3561349 T DE 3561349T DE 3561349 D1 DE3561349 D1 DE 3561349D1
Authority
DE
Germany
Prior art keywords
rod
piston
sleeve
locking
movable rod
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.)
Expired
Application number
DE8585112502T
Other languages
German (de)
Inventor
Alain Holvoet
Christian Tour
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.)
PARISIENNE OUTILLAGE
Compagnie Parisienne dOutillage a Air Comprime SA
Original Assignee
PARISIENNE OUTILLAGE
Compagnie Parisienne dOutillage a Air Comprime SA
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 PARISIENNE OUTILLAGE, Compagnie Parisienne dOutillage a Air Comprime SA filed Critical PARISIENNE OUTILLAGE
Application granted granted Critical
Publication of DE3561349D1 publication Critical patent/DE3561349D1/en
Expired 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)
  • Actuator (AREA)
  • Fluid-Damping Devices (AREA)
  • Surgical Instruments (AREA)
  • Lock And Its Accessories (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Abstract

1. A device for locking a translationally movable rod (1) in a body (2), comprising, inside the body (2), a piston (6) which surrounds the rod (1), is pushed away from a position by a spring (10) and is pushed back towards this position by injection of a fluid into a chamber (13) situated on the side of the piston which (6) is opposed to the spring (10), further comprising a sleeve (64), the inner surface of which is a cylinder surrounding the rod (1) ant the outer surface of which has o frusto-conical shape, said sleeve (4) being split parallelly to the axis of the rod (1) and being stationary with respect to the body (2), and comprising locking means which apply the sleeve (4) for one direction of piston (6) movement against the rod (1), thus causing the locking of the rod (1) in the body (2), and which liberate the sleeve (4) for the other direction of piston (6) movement, thus causing the unlocking of the rod (4), characterized in that said locking means comprise several rollers (8) which roll on the sleeve (4) and the axes (9) of which are made integral with the piston (6), the rollers being situated in a plane perpendicular to the axis of the rod (1).
DE8585112502T 1984-10-05 1985-10-03 Locking device for a movable rod in a body Expired DE3561349D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8415306A FR2571451B1 (en) 1984-10-05 1984-10-05 DEVICE FOR LOCKING A MOBILE ROD IN A BODY

Publications (1)

Publication Number Publication Date
DE3561349D1 true DE3561349D1 (en) 1988-02-11

Family

ID=9308372

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585112502T Expired DE3561349D1 (en) 1984-10-05 1985-10-03 Locking device for a movable rod in a body

Country Status (4)

Country Link
EP (1) EP0177036B1 (en)
AT (1) ATE31785T1 (en)
DE (1) DE3561349D1 (en)
FR (1) FR2571451B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005016723A1 (en) * 2005-04-11 2006-10-12 Zimmer, Günther Brake and / or clamping device with roller-mounted wedge gear
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
CN103206428B (en) * 2013-04-03 2015-07-22 同济大学 Bidirectional wedge-shaped hydraulic locking device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE630017A (en) *
US2811951A (en) * 1954-08-31 1957-11-05 Gen Motors Corp Actuator and locking means therefor
DE1804857B2 (en) * 1968-10-24 1971-11-25 Hänchen, Siegfried, 7304 Ruit DEVICE FOR CLAMPING AN AXIALLY MOVABLE PISTON ROD
US3918346A (en) * 1974-07-11 1975-11-11 Us Army Frictional lock for retaining a rotatable piston against axial displacement
DE2655284A1 (en) * 1976-12-07 1978-06-08 Festo Maschf Stoll G PNEUMATIC OR HYDRAULIC AND SINGLE OR DOUBLE PISTON-CYLINDER DEVICE
CA1109366A (en) * 1977-10-21 1981-09-22 Andrew Stratienko Locking device for hydraulic actuator
DE2755456A1 (en) * 1977-12-13 1979-06-28 Bosch Gmbh Robert WORK CYLINDER

Also Published As

Publication number Publication date
EP0177036B1 (en) 1988-01-07
ATE31785T1 (en) 1988-01-15
FR2571451A1 (en) 1986-04-11
FR2571451B1 (en) 1987-09-04
EP0177036A1 (en) 1986-04-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee