DK1457710T3 - Linear actuator with an emergency adjustment device - Google Patents

Linear actuator with an emergency adjustment device

Info

Publication number
DK1457710T3
DK1457710T3 DK04005527T DK04005527T DK1457710T3 DK 1457710 T3 DK1457710 T3 DK 1457710T3 DK 04005527 T DK04005527 T DK 04005527T DK 04005527 T DK04005527 T DK 04005527T DK 1457710 T3 DK1457710 T3 DK 1457710T3
Authority
DK
Denmark
Prior art keywords
torque tube
linear actuator
adjustment device
emergency adjustment
movement
Prior art date
Application number
DK04005527T
Other languages
Danish (da)
Inventor
Marcel Soltermann
Original Assignee
Skf 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 Skf Ab filed Critical Skf Ab
Application granted granted Critical
Publication of DK1457710T3 publication Critical patent/DK1457710T3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F16H25/2454—Brakes; Rotational locks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2071—Disconnecting drive source from the actuator, e.g. using clutches for release of drive connection during manual control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2081—Parallel arrangement of drive motor to screw axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • F16H25/2454—Brakes; Rotational locks
    • F16H2025/2463—Brakes; Rotational locks using a wrap spring brake, i.e. a helical wind up spring for braking or locking

Abstract

The linear actuator has a torque tube (4) interacting with the spindle (9) of a motor (2). An adjusting device (14) is located at the upper end of the torque tube, and by means of an operating element defined length adjustments of the torque tube are adjustable by which the torque tube is released for a movement with at least one movement component along the longitudinal movement axis (11), whereby on account of the release the torque tube is movable by a displacement force acting on the torque tube through a connecting component.
DK04005527T 2003-03-14 2004-03-09 Linear actuator with an emergency adjustment device DK1457710T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4232003 2003-03-14

Publications (1)

Publication Number Publication Date
DK1457710T3 true DK1457710T3 (en) 2006-01-30

Family

ID=32739340

Family Applications (1)

Application Number Title Priority Date Filing Date
DK04005527T DK1457710T3 (en) 2003-03-14 2004-03-09 Linear actuator with an emergency adjustment device

Country Status (4)

Country Link
EP (1) EP1457710B1 (en)
AT (1) ATE304672T1 (en)
DE (1) DE502004000062D1 (en)
DK (1) DK1457710T3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2310309T3 (en) * 2004-09-20 2009-01-01 Ab Skf LINEAR DRIVER WITH MANUAL OPERATION FOR EMERGENCY CASES.
US7511442B2 (en) * 2004-10-28 2009-03-31 Ab Skf Linear drive device
DE202005002585U1 (en) * 2005-02-17 2005-05-19 Dewert Antriebs- Und Systemtechnik Gmbh Linear motor drive, has brake system with bushing, which is firmly attached to projections on guide flange that is fixed to spindle nut when switch cam actuates limit switch in flange pipe to switch off DC motor
CN101253350B (en) * 2005-09-02 2014-06-11 利纳克有限公司 Actuator
DK1920172T3 (en) 2005-09-02 2011-02-14 Linak As Actuator
US7779973B2 (en) * 2006-07-05 2010-08-24 Chen-Hui Ko Transmission mechanism with the function of the shock absorption
US8234944B2 (en) 2008-02-08 2012-08-07 Linak A/S Actuator
DE202011000964U1 (en) * 2011-04-21 2012-07-23 Dewert Antriebs- Und Systemtechnik Gmbh Electromotive linear drive
SE541297C2 (en) 2016-09-05 2019-06-18 Reac Ab Hoist device comprising a linear actuator with a manual lowering device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK171715B1 (en) * 1994-05-31 1997-04-01 Linak As Linear actuator
CH692805A5 (en) * 1998-02-24 2002-11-15 Magnetic Elektromotoren Ag Patient position manual adjusting device for a hospital trolley
DE29818691U1 (en) * 1998-10-21 1999-02-11 Okin Ges Fuer Antriebstechnik linear actuator

Also Published As

Publication number Publication date
DE502004000062D1 (en) 2005-10-20
EP1457710B1 (en) 2005-09-14
EP1457710A1 (en) 2004-09-15
ATE304672T1 (en) 2005-09-15

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