CA2092524A1 - Arrangement in a two mast platform - Google Patents

Arrangement in a two mast platform

Info

Publication number
CA2092524A1
CA2092524A1 CA002092524A CA2092524A CA2092524A1 CA 2092524 A1 CA2092524 A1 CA 2092524A1 CA 002092524 A CA002092524 A CA 002092524A CA 2092524 A CA2092524 A CA 2092524A CA 2092524 A1 CA2092524 A1 CA 2092524A1
Authority
CA
Canada
Prior art keywords
drive support
platform
mast
levelling device
motor brake
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.)
Granted
Application number
CA002092524A
Other languages
French (fr)
Other versions
CA2092524C (en
Inventor
Ake Johansson
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.)
Alimak AB
Original Assignee
Ake Johansson
Alimak 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 Ake Johansson, Alimak Ab filed Critical Ake Johansson
Publication of CA2092524A1 publication Critical patent/CA2092524A1/en
Application granted granted Critical
Publication of CA2092524C publication Critical patent/CA2092524C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • E04G1/20—Scaffolds comprising upright members and provision for supporting cross-members or platforms at different positions therealong

Abstract

The invention relates to an arrangement in an elongated working platform (2) which at each end is carried by a mast via a drive support (8) movable along the mast. The drive support includes an electric motor unit by means of which the drive support is drivable along the mast, said drive support pivotally carrying the corresponding end of the platform. At each motor unit an op-erating means for manual release of a motor brake for lowering the platform in case of power failure, is connected to a levelling device (24-38). The levelling device is arranged to be triggered in order to prevent movement of a drive support resulting in devia-tion of the platform from a position essentially corresponding to the horizontal position, said transmission being arranged to re-turn the operating means to a position activating the motor brake, if the manual release of the motor brake causes triggering of the levelling device.
CA002092524A 1990-10-02 1991-08-28 Arrangement in a two mast platform Expired - Lifetime CA2092524C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9003137-8 1990-10-02
SE9003137A SE467313B (en) 1990-10-02 1990-10-02 DEVICE FOR TWO MASTED WORKPLATFORM
PCT/SE1991/000563 WO1992006258A1 (en) 1990-10-02 1991-08-28 An arrangement in a two mast platform

Publications (2)

Publication Number Publication Date
CA2092524A1 true CA2092524A1 (en) 1992-04-03
CA2092524C CA2092524C (en) 2002-05-28

Family

ID=20380525

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002092524A Expired - Lifetime CA2092524C (en) 1990-10-02 1991-08-28 Arrangement in a two mast platform

Country Status (9)

Country Link
EP (1) EP0653007B1 (en)
JP (1) JP3142293B2 (en)
KR (1) KR970009261B1 (en)
AT (1) ATE145444T1 (en)
AU (1) AU663688B2 (en)
CA (1) CA2092524C (en)
DE (1) DE69123265T2 (en)
SE (1) SE467313B (en)
WO (1) WO1992006258A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9300629A (en) * 1993-04-14 1994-11-01 Hek Manufacturing B V Height adjustable platform.
NL9401264A (en) * 1994-08-02 1996-03-01 Blok Beheer Bv Lifting device
US6523647B2 (en) 2001-05-21 2003-02-25 Hydro Mobile Inc. Elevating platform assembly
JP5463229B2 (en) * 2010-07-20 2014-04-09 三成研機株式会社 Manual braking device for lifting scaffolds
JP5995267B2 (en) * 2012-05-08 2016-09-21 光洋機械産業株式会社 Lifting scaffolding device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE311734B (en) * 1967-12-08 1969-06-23 Meyer Machine Inc
AU4753885A (en) * 1984-09-17 1986-03-27 John Edward Commerford Improvements in work platforms
SE462336B (en) * 1986-04-07 1990-06-11 Malmqvist Produkter Ab G Drivable platform for scaffolding

Also Published As

Publication number Publication date
JP3142293B2 (en) 2001-03-07
DE69123265T2 (en) 1997-03-20
AU8664391A (en) 1992-04-28
SE9003137D0 (en) 1990-10-02
SE9003137L (en) 1992-04-03
EP0653007A1 (en) 1995-05-17
KR930702592A (en) 1993-09-09
WO1992006258A1 (en) 1992-04-16
SE467313B (en) 1992-06-29
KR970009261B1 (en) 1997-06-09
ATE145444T1 (en) 1996-12-15
CA2092524C (en) 2002-05-28
AU663688B2 (en) 1995-10-19
DE69123265D1 (en) 1997-01-02
EP0653007B1 (en) 1996-11-20
JPH06501528A (en) 1994-02-17

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Legal Events

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EEER Examination request
MKEX Expiry