EP0774097B1 - Vorrichtung zur vertikalen hebesteuerung von gegenständen - Google Patents

Vorrichtung zur vertikalen hebesteuerung von gegenständen Download PDF

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Publication number
EP0774097B1
EP0774097B1 EP94904372A EP94904372A EP0774097B1 EP 0774097 B1 EP0774097 B1 EP 0774097B1 EP 94904372 A EP94904372 A EP 94904372A EP 94904372 A EP94904372 A EP 94904372A EP 0774097 B1 EP0774097 B1 EP 0774097B1
Authority
EP
European Patent Office
Prior art keywords
support
carriage
shaft
chain
lifting device
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
EP94904372A
Other languages
English (en)
French (fr)
Other versions
EP0774097A1 (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

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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, comprising a relatively longitudinal support provided with longitudinal guiding means and a carriage guided by said longitudinal guiding means (2), movable in the longitudinal direction of the support.
  • such a device is characterised in that there is provided a threaded, preferably trapezoidally- threaded driving shaft journalled in the ends of the support which shaft is driven by a motor via a worm gear unit, said driving shaft cooperating with a nut fastened to said carriage, there being provided a perpendicular shaft in the support carrying a 1: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 intended for carrying in a 1: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 1: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 1: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 1:st gear ring and 1: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 1: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 1: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 carriage 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.
  • 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 trapezoidzlly 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 1:st gear ring 10 and a 1:st pulley I 1.
  • 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 1: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.
  • a 1:st 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Transmission Devices (AREA)
  • Control And Safety Of Cranes (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Selective Calling Equipment (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Invalid Beds And Related Equipment (AREA)

Claims (5)

  1. Hebevorrichtung zur gesteuerten vertikalen Bewegung von Objekten, insbesondere solchen Objekten, denen über eine Leitung ein elektrischer Strom zugeführt wird, wie zum Beispiel Kronleuchtern, mit:
    einem relativ longitudinalen Träger (1), der mit longitudinalen Führungsmitteln (2) versehen ist, und einem durch die longitudinalen Führungsmittel (2) geführten Schlitten (6), der in Längsrichtung des Trägers (1) beweglich ist,
    dadurch gekennzeichnet, dass
    eine mit einem Gewinde, vorzugsweise einem Trapezoid-Gewinde versehene Antriebswelle (3) vorgesehen ist, die an den Enden des Trägers (1) drehbar gelagert ist, wobei die Welle durch einen Motor (5) über eine Schrauben-Getriebeeinheit (4) angetrieben wird und die Antriebswelle (3) mit einer an dem Schlitten befestigten Mutter (8) zusammenwirkt,
    eine senkrechte Welle (9) in dem Träger (1) vorgesehen ist, die einen ersten Getriebering (10) treibt und eine Kette (15), die relativ schwer ist und sich beständig drehen kann, über den Getriebering (10) läuft, wobei die Kette durch den Schlitten (6) angetrieben wird, um ihre Position in Bezug auf den Träger (1) zu ändern, wenn die Position des Schlittens (6) in Bezug auf den Träger (1) durch die Antriebswelle (3) geändert wird, und wobei die Kette zum Tragen des Objektes an einem ersten Ende vorgesehen ist.
  2. Hebevorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass die senkrecht in dem Träger (1) angeordnete Welle (9) auch eine erste Riemenscheibe trägt, über die eine elektrische Leitung (16) läuft, die ebenfalls durch den Schlitten (6) angetrieben wird, um ihre Position in Bezug auf den Träger (1) zu ändern, wenn die Position des Schlittens in Bezug auf den Träger (1) durch die Antriebswelle (3) geändert wird, wobei das Ende der Leitung (16) mit einem ersten Ende mit dem Objekt verbunden ist.
  3. Hebevorrichtung nach Anspruch 2,
    dadurch gekennzeichnet, dass die Kette (15) und die Leitung (16) an dem Träger (1) vorzugsweise in der Nähe der senkrecht zu dem Träger (1) angeordneten Welle (9) befestigt sind und dass der Schlitten (6) mit einer senkrechten Welle (12) versehen ist, die einen zweiten Getriebering (13) mit einer zweiten Riemenscheiben trägt, die dazu vorgesehen sind, dass darüber die Kette (15) beziehungsweise die Leitung (16) laufen, bevor diese den ersten Getriebering (10) und die erste Riemenscheibe (11) berühren.
  4. Hebevorrichtung nach einem der Ansprüche 1 bis 3,
    gekennzeichnet durch einen ersten Begrenzungsschalter (17) für die an dem elektrischen Motor (5) anliegende elektrische Spannung, der in dem Träger (1) an seinem durch die Welle (9) gedrehten Ende senkrecht vorgesehen ist, wobei der Schlitten (6) auf den ersten Begrenzungsschalter einwirkt, sowie einen zweiten Begrenzungsschalter, der in dem Träger (1) in der Nähe der Welle (9) senkrecht vorgesehen ist, wobei ein Positionsindikator (19) auf den zweiten Begrenzungsschalter (18) einwirkt, der mit einer Mutter (19) versehen ist, die die Antriebswelle (3) umfasst und in Längsrichtung des Trägers mit Führungsmitteln, insbesondere den Führungsmitteln (2) geführt wird.
  5. Hebevorrichtung nach einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet, dass der Schlitten (6) mit Steuerrädern (7) versehen ist, die mit Führungsmitteln in dem Träger (1) in Form von Führungsstangen (2) an den hochgezogenen Wänden eines U-förmigen Trägers zusammenwirken.
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 SE9300035L (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 EP0774097A1 (de) 1997-05-21
EP0774097B1 true 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) SE9300035L (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
EP0493297B1 (de) * 1990-12-28 1998-03-11 Eduardo Roberto Garcia Auf Schienen verschiebbarer Träger eines Apparates

Also Published As

Publication number Publication date
WO1994016267A1 (en) 1994-07-21
DK0774097T3 (da) 2002-05-21
SE9300035D0 (sv) 1993-01-08
DE69429194D1 (de) 2002-01-03
ATE209317T1 (de) 2001-12-15
NO952709L (no) 1995-07-07
DE69429194T2 (de) 2002-08-14
FI953350A (fi) 1995-07-07
EP0774097A1 (de) 1997-05-21
FI107291B (fi) 2001-06-29
SE470403B (sv) 1994-02-14
SE9300035L (sv) 1994-02-14
NO952709D0 (no) 1995-07-07
FI953350A0 (fi) 1995-07-07
NO319244B1 (no) 2005-07-04

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