EP0774097A1 - Vorrichtung zur vertikalen hebesteuerung von gegenständen - Google Patents

Vorrichtung zur vertikalen hebesteuerung von gegenständen

Info

Publication number
EP0774097A1
EP0774097A1 EP94904372A EP94904372A EP0774097A1 EP 0774097 A1 EP0774097 A1 EP 0774097A1 EP 94904372 A EP94904372 A EP 94904372A EP 94904372 A EP94904372 A EP 94904372A EP 0774097 A1 EP0774097 A1 EP 0774097A1
Authority
EP
European Patent Office
Prior art keywords
support
carriage
shaft
chain
list
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
EP94904372A
Other languages
English (en)
French (fr)
Other versions
EP0774097B1 (de
Inventor
Per-Olof Arnesson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0774097A1 publication Critical patent/EP0774097A1/de
Application granted granted Critical
Publication of EP0774097B1 publication Critical patent/EP0774097B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/36—Hoisting or lowering devices, e.g. for maintenance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists

Definitions

  • the present invention relates to a lifting device for the controlled vertical movement of objects, especially such objects, to which is conveyed an electric current through a line, such as chandeliers.
  • such a device is primarily characterized by the combination of a relatively longitudinal support, provided with longitudinal guiding means, furthermore a threaded, preferably trapezoidally-threaded shaft, journalled in the ends of the support, which shaft is driven by a motor via a worm gear unit , furthermore a carriage, guided by said longitudinal guiding means, which carriage is movable in the longitudinal direction of the support, with a nut, fastened to the carriage, cooperating with said driving shaft, furthermore a shaft provided perpendicularly in the support, carrying a l:st gear ring, and a chain , relatively heavy and stable to turning, running over said gear ring, the chain being driven by said carriage to change its position in relationship to the support as the position of the carriage is changed in relationship to the support by the driving shaft, the chain carrying in a l:st end said object.
  • the driving shaft may be driven in any of the ends of the support.
  • the support is intended to be mounted primarily horizontally or substantially horizontally in an attic or on attic beams, so that the chain can run downwardly via said gear ring through an opening in the roof, in which a chandelier or other object is hanging.
  • the lifting device is arranged in such a way, that said shaft, provided perpendicularly in the support, also carries a l:st pulley, over which there is an electric wire running, the same also being driven by said carriage to change its position in relationship to the support (1) as the position of the carriage in relationship to the support (1) is changed by the driving shaft (3), the end of the wire (16) being connected in a l:st end to said object.
  • the other end of the wire is connected, possibly via a connecting means, to the electric mains.
  • the chain may be fixed directly to the carriage, which also is true for the other end of the wire, if any, which in that case had to be connected to a movable wire, which in turn had to be connected to the electric mains. More available possible vertical movement length is gained, however, at a given length of the support, if the chain, and the electric wire, if any, are fixed to the support, preferably in the vicinity of said shaft, provided perpendicularly in the support, and the carriage is provided with a perpendicular shaft, which carries a 2:nd gear ring with a 2:nd pulley over which the chain resp. the wire are running before the contact with said l:st gear ring and l:st pulley.
  • the lifting device according to the invention may, in an advantageous embodiment be provided with a limit switch, which increases the safety in utilizing the lifting device and furthermore facilitates the vertical setting at a certain height of the actual object.
  • the limit switches may be arranged themselves to be movable along the support, at each side of the carriage, but in one suitable embodiment of the lifting device according to the invention, a l:st limit switch for the electric voltage to said electric motor is provided in the support at its end, turned from the perpendicular shaft, the l:st limit switch being acted upon by said carriage, whilst the 2:nd limit switch is provided in the support in the vicinity of the perpendicular shaft, the 2:nd limit switch being acted upon by a position indicator, provided with a nut means, embracing said driving shaft, guided in the longitudinal direction of the support by guiding means, possibly said guiding means.
  • the carnage may be guided in different ways in the support by said guiding means, and it is suitable to provide it with steering wheels, cooperating with guiding means provided in the support, in the form of guiding bars on the raised walls of a U- beam.
  • figure 1 schematically shows a plan view of a lifting device according to the invention
  • figure 2 schematically shows a view from the side, partly as a section, of same lifting device, that is shown in figure 1.
  • a longitudinal support in the form of a U- beam is denoted by 1, and on the walls of the U- beam at the inside, there are guiding bars 2, as guiding means.
  • a trapezoidally threaded driving shaft 3 driven via a gear worm 4 by an electric motor 5.
  • a nut 8 is fixed to the carriage 6, embracing the driving shaft 3, which is made from steel, whilst the nut is made from bronze.
  • a perpendicular shaft 9 in the support carrying a list gear ring 10 and a list pulley 11.
  • a second shaft 12 is arranged perpendicularly, carrying a 2:nd gear ring 13 and a 2:nd pulley 14.
  • E relatively heavy chain 15, stable to turning is fastended to the bottom of the support, in the vicinity to said perpendicular shaft, provided in the support.
  • the chain runs over the 2:nd gear ring, turns over and runs over th l st gear ring and thereby changes direction 90° if the support is mounted horizontally, and carries in its free end the actual object, which is best shown in figure 2.
  • An electric wire 16 is fixed to the support, longitudinally seen at level with the fixing point of the chain in the support, then runs up over the 2:nd pulley and further to the list pulley, then changes direction 90° and goes down to the object, where the end of the wire is connected to a light source or other current consumer.
  • a list limit switch 17 is fixed to the support on the side of the carriage 6, turned to the electric motor 5, and a 2:nd limit switch 18 is fixed to the support on the other side of the carriage.
  • a position indicator formed like a nut 19 embraces the the driving shaft and is moved with this at the same rate as the carriage 6, as it is prevented from rotating by a tap 20, guided by the guiding bar 2.
  • the nut 19 is suitably formed so that it can be opened, so that it can be moved along the driving shaft 3 to a desired breaking position
  • An extra nut 21 runs freely on the driving shaft 3 at the carriage 6. In these there is a stop 22. If the fixed nut would break, the forced movement of the carriage 6 is stopped by the nut 21 and the stop 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Types And Forms Of Lifts (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Control And Safety Of Cranes (AREA)
  • Transmission Devices (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Selective Calling Equipment (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
EP94904372A 1993-01-08 1994-01-04 Vorrichtung zur vertikalen hebesteuerung von gegenständen Expired - Lifetime EP0774097B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9300035A SE470403B (sv) 1993-01-08 1993-01-08 Lyftanordning för kontrollerad förflyttning i vertikalled av föremål, såsom ljuskronor
SE9300035 1993-01-08
PCT/SE1994/000004 WO1994016267A1 (en) 1993-01-08 1994-01-04 A lifting device for the controlled vertical transfer of objects

Publications (2)

Publication Number Publication Date
EP0774097A1 true EP0774097A1 (de) 1997-05-21
EP0774097B1 EP0774097B1 (de) 2001-11-21

Family

ID=20388486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94904372A Expired - Lifetime EP0774097B1 (de) 1993-01-08 1994-01-04 Vorrichtung zur vertikalen hebesteuerung von gegenständen

Country Status (8)

Country Link
EP (1) EP0774097B1 (de)
AT (1) ATE209317T1 (de)
DE (1) DE69429194T2 (de)
DK (1) DK0774097T3 (de)
FI (1) FI107291B (de)
NO (1) NO319244B1 (de)
SE (1) SE470403B (de)
WO (1) WO1994016267A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19860800A1 (de) * 1998-12-30 2000-07-06 Berchtold Gmbh & Co Geb Medizinische Leuchte
EP1116687B1 (de) * 2000-01-12 2004-03-31 Bosch Rexroth AG Prospektzug
US7004043B2 (en) 2000-04-04 2006-02-28 Videolarm, Inc. Elevated support pole with automatic electrical connection and disconnection
US6447150B1 (en) * 2000-04-04 2002-09-10 Videolarm, Inc. Pole with lifting mount
US8403302B2 (en) 2008-09-04 2013-03-26 Videolarm, Inc. Elevated support system
CN103556637A (zh) * 2013-09-29 2014-02-05 国鼎(南通)管桩有限公司 可升降泵管支撑小车

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3913321A1 (de) * 1988-04-22 1989-11-02 Viebrantz Hans Joachim Zugpendel zur hoehenverstellbaren und lagestabilisierten aufhaengung einer leuchte
US5105349A (en) * 1990-09-24 1992-04-14 Falls John W Motorized chandelier lift system
ES2117002T3 (es) * 1990-12-28 1998-08-01 Eduardo Roberto Garcia Soporte de aparato guiado por carriles.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9416267A1 *

Also Published As

Publication number Publication date
ATE209317T1 (de) 2001-12-15
NO952709L (no) 1995-07-07
NO952709D0 (no) 1995-07-07
FI953350A (fi) 1995-07-07
SE9300035D0 (sv) 1993-01-08
DE69429194D1 (de) 2002-01-03
FI953350A0 (fi) 1995-07-07
EP0774097B1 (de) 2001-11-21
SE9300035L (sv) 1994-02-14
NO319244B1 (no) 2005-07-04
DK0774097T3 (da) 2002-05-21
WO1994016267A1 (en) 1994-07-21
FI107291B (fi) 2001-06-29
SE470403B (sv) 1994-02-14
DE69429194T2 (de) 2002-08-14

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