DE20011789U1 - Pressurized cylinder with mechanical travel lock in the depressurized state - Google Patents

Pressurized cylinder with mechanical travel lock in the depressurized state

Info

Publication number
DE20011789U1
DE20011789U1 DE20011789U DE20011789U DE20011789U1 DE 20011789 U1 DE20011789 U1 DE 20011789U1 DE 20011789 U DE20011789 U DE 20011789U DE 20011789 U DE20011789 U DE 20011789U DE 20011789 U1 DE20011789 U1 DE 20011789U1
Authority
DE
Germany
Prior art keywords
working cylinder
locking
piston
thread
cylinder according
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 - Lifetime
Application number
DE20011789U
Other languages
German (de)
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.)
Buemach Engineering International BV
Original Assignee
Buemach Engineering International BV
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 Buemach Engineering International BV filed Critical Buemach Engineering International BV
Priority to DE20011789U priority Critical patent/DE20011789U1/en
Publication of DE20011789U1 publication Critical patent/DE20011789U1/en
Priority to EP01114451A priority patent/EP1170512B1/en
Priority to DE50101349T priority patent/DE50101349D1/en
Priority to AT01114451T priority patent/ATE258275T1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F15B15/264—Screw mechanisms attached to the piston

Abstract

The cylinder has an internal thread (7) in the boring of its piston (6), in working connection with the thread of a threaded spindle (9). This spindle has a coupling profile at the lower end, on which a locking disk (11) with first gear crown can move axially. This gear crown is engaged with a second gear crown (17) on a fixed locking disk (18).

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (6)

1. Druckmittelbetriebener Arbeitszylinder mit integrierter druckabhängiger mechanischer Sperrung der translatorischen Bewegung einer partiell hohlen Kolbenstange, die mit einem durchbohrten Kolben gekoppelt ist, dadurch gekennzeichnet, dass die Bohrung des Kolbens (6) ein Innengewinde (7) auf­ weist, das mit dem Gewinde einer Gewindespindel (9) in Wirkverbindung steht,
dass die Gewindespindel (9) am unteren Ende ein Kopplungs­ profil aufweist,
dass auf dem Kopplungsprofil eine verschiebbare Sperrschei­ be (11) mit einem ersten Zahnkranz (12) formschlüssig axial verschiebbar gelagert ist,
dass der erste Zahnkranz (12) mit einem zweiten Zahnkranz (17) einer festen Sperrscheibe (18) im Bodenteil (23) des Arbeitszylinders (1) ein Formgehemme sind und
dass die Zahnkränze (12; 17) der Sperrscheiben (11; 18) im drucklosen Zustand formschlüssig miteinander gekoppelt sind.1. Pressure-operated working cylinder with integrated pressure-dependent mechanical locking of the translational movement of a partially hollow piston rod, which is coupled to a pierced piston, characterized in that the bore of the piston ( 6 ) has an internal thread ( 7 ) with the thread of a threaded spindle ( 9 ) is operatively connected,
that the threaded spindle ( 9 ) has a coupling profile at the lower end,
that a displaceable locking washer ( 11 ) with a first toothed ring ( 12 ) is mounted in a form-fitting, axially displaceable manner on the coupling profile,
that the first ring gear ( 12 ) with a second ring gear ( 17 ) of a fixed locking disc ( 18 ) in the bottom part ( 23 ) of the working cylinder ( 1 ) are a form-locking device and
that the toothed rings ( 12 ; 17 ) of the locking disks ( 11 ; 18 ) are positively coupled to one another in the depressurized state. 2. Arbeitszylinder nach Anspruch 1, dadurch gekennzeichnet, dass die Gewindepaarung zwischen dem Innengewinde (7) des Kolbens (6) und dem Gewinde der Gewindespindel (9) aus ei­ nem nicht selbsthemmenden Gewinde mit großer Steigung be­ steht.2. Working cylinder according to claim 1, characterized in that the thread pairing between the internal thread ( 7 ) of the piston ( 6 ) and the thread of the threaded spindle ( 9 ) consists of a non-self-locking thread with a large pitch. 3. Arbeitszylinder nach den Ansprüchen 1 und 2, dadurch ge­ kennzeichnet, dass in einem Bodenteil (23) eine vom Druck des Fluids zum Betrieb des Arbeitszylinders (1) abhängige Steuerung der mechanischen Sperrung des Formgehemmes angeordnet ist. 3. Working cylinder according to claims 1 and 2, characterized in that in a bottom part ( 23 ) depending on the pressure of the fluid for the operation of the working cylinder ( 1 ) dependent control of the mechanical locking of the form lock is arranged. 4. Arbeitszylinder nach den Ansprüchen 1 bis 3, dadurch ge­ kennzeichnet, dass die Beaufschlagung des Kolbenstangenraums (48) oder des Kolbenraums (50) mit dem Druckfluid jeweils erst nach der Entriegelung des Sperrsystems vorliegt.4. Working cylinder according to claims 1 to 3, characterized in that the application of the piston rod space ( 48 ) or the piston space ( 50 ) with the pressure fluid is only present after the unlocking of the locking system. 5. Arbeitszylinder nach den Ansprüchen 1 bis 4, dadurch ge­ kennzeichnet, dass zwischen der verschiebbaren Sperrscheibe (11) und der festen Sperrscheibe (18) eine Kopplung mittels Reibbelägen besteht.5. Working cylinder according to claims 1 to 4, characterized in that there is a coupling by means of friction linings between the displaceable locking disk ( 11 ) and the fixed locking disk ( 18 ). 6. Arbeitszylinder nach den Ansprüchen 1 bis 5, dadurch ge­ kennzeichnet, dass ein Hubraum (14) eines Entriegelungskolbens (15) über seine Verdrängungswirkung während der Entriegelung ölfrei ist.6. Working cylinder according to claims 1 to 5, characterized in that a displacement ( 14 ) of an unlocking piston ( 15 ) is oil-free via its displacement effect during the unlocking.
DE20011789U 2000-07-06 2000-07-06 Pressurized cylinder with mechanical travel lock in the depressurized state Expired - Lifetime DE20011789U1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE20011789U DE20011789U1 (en) 2000-07-06 2000-07-06 Pressurized cylinder with mechanical travel lock in the depressurized state
EP01114451A EP1170512B1 (en) 2000-07-06 2001-06-15 Fluid pressure actuator with mechanical locking device when unpressurized
DE50101349T DE50101349D1 (en) 2000-07-06 2001-06-15 Pressurized cylinder with mechanical travel lock in the depressurized state
AT01114451T ATE258275T1 (en) 2000-07-06 2001-06-15 PRESSURE OPERATED WORKING CYLINDER WITH MECHANICAL LOCKING IN THE UNPRESSURIZED CONDITION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE20011789U DE20011789U1 (en) 2000-07-06 2000-07-06 Pressurized cylinder with mechanical travel lock in the depressurized state

Publications (1)

Publication Number Publication Date
DE20011789U1 true DE20011789U1 (en) 2000-12-21

Family

ID=7943648

Family Applications (2)

Application Number Title Priority Date Filing Date
DE20011789U Expired - Lifetime DE20011789U1 (en) 2000-07-06 2000-07-06 Pressurized cylinder with mechanical travel lock in the depressurized state
DE50101349T Expired - Fee Related DE50101349D1 (en) 2000-07-06 2001-06-15 Pressurized cylinder with mechanical travel lock in the depressurized state

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE50101349T Expired - Fee Related DE50101349D1 (en) 2000-07-06 2001-06-15 Pressurized cylinder with mechanical travel lock in the depressurized state

Country Status (3)

Country Link
EP (1) EP1170512B1 (en)
AT (1) ATE258275T1 (en)
DE (2) DE20011789U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20216197U1 (en) * 2002-10-22 2004-03-04 Bümach Engineering International B.V. Hydraulic working cylinder
EP1310681A3 (en) * 2001-11-13 2005-04-20 ROLFO S.p.A. Linear actuator with internal mechanical locking
DE102004022203B3 (en) * 2004-05-05 2005-08-11 Neumeister Hydraulik Gmbh Locking cylinder for ramps for low bed trucks has units for disengaging a plunger thread and a spindle thread so that axial movement of the plunger about the rotary axis is possible relative to the cylinder without rotating the spindle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004009302U1 (en) 2004-06-11 2004-08-26 Bümach Engineering International B.V. Pressurized cylinder with mechanical travel lock in the depressurized state
DE202005020365U1 (en) 2005-12-29 2006-02-23 Bümach Engineering International B.V. Pressure-medium-operated working cylinder with mechanical path blocking in the unpressurized state
DE102006030617B4 (en) * 2005-12-29 2009-09-10 Bümach Engineering International B.V. Pressure-medium-operated working cylinder with mechanical path blocking in the unpressurized state

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804053A (en) * 1954-04-14 1957-08-27 Gen Motors Corp Actuator and locking means therefor
US2879746A (en) * 1955-12-08 1959-03-31 Gen Motors Corp Actuator with unidirectional locking means
US3442176A (en) * 1967-05-01 1969-05-06 Gen Electric Actuator locking mechanism
EP0648942A1 (en) * 1993-10-06 1995-04-19 UNIVER S.p.A. Linear pneumatic actuator with a reversible-action locking device
DE29720838U1 (en) * 1997-11-25 1998-02-26 Andexser Lucie Working cylinder with integrated lifting brake

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB683633A (en) * 1949-02-25 1952-12-03 Gen Motors Corp Improved fluid-pressure actuator
GB725003A (en) * 1952-03-27 1955-03-02 Gen Motors Corp Improved fluid-pressure actuator
JPH08303410A (en) * 1995-04-27 1996-11-19 Hino Motors Ltd Fluid pressure cylinder
AT4094U1 (en) * 1999-12-07 2001-01-25 Weber Hydraulik Gmbh LINEAR ACTUATOR

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804053A (en) * 1954-04-14 1957-08-27 Gen Motors Corp Actuator and locking means therefor
US2879746A (en) * 1955-12-08 1959-03-31 Gen Motors Corp Actuator with unidirectional locking means
US3442176A (en) * 1967-05-01 1969-05-06 Gen Electric Actuator locking mechanism
EP0648942A1 (en) * 1993-10-06 1995-04-19 UNIVER S.p.A. Linear pneumatic actuator with a reversible-action locking device
DE29720838U1 (en) * 1997-11-25 1998-02-26 Andexser Lucie Working cylinder with integrated lifting brake

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1310681A3 (en) * 2001-11-13 2005-04-20 ROLFO S.p.A. Linear actuator with internal mechanical locking
DE20216197U1 (en) * 2002-10-22 2004-03-04 Bümach Engineering International B.V. Hydraulic working cylinder
DE102004022203B3 (en) * 2004-05-05 2005-08-11 Neumeister Hydraulik Gmbh Locking cylinder for ramps for low bed trucks has units for disengaging a plunger thread and a spindle thread so that axial movement of the plunger about the rotary axis is possible relative to the cylinder without rotating the spindle

Also Published As

Publication number Publication date
EP1170512A1 (en) 2002-01-09
ATE258275T1 (en) 2004-02-15
EP1170512B1 (en) 2004-01-21
DE50101349D1 (en) 2004-02-26

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Legal Events

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R163 Identified publications notified
R207 Utility model specification

Effective date: 20010125

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 20030819

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20060817

R152 Utility model maintained after payment of third maintenance fee after eight years

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R071 Expiry of right