EP1602613A1 - Counterbalancing self-running elevator - Google Patents

Counterbalancing self-running elevator Download PDF

Info

Publication number
EP1602613A1
EP1602613A1 EP03710316A EP03710316A EP1602613A1 EP 1602613 A1 EP1602613 A1 EP 1602613A1 EP 03710316 A EP03710316 A EP 03710316A EP 03710316 A EP03710316 A EP 03710316A EP 1602613 A1 EP1602613 A1 EP 1602613A1
Authority
EP
European Patent Office
Prior art keywords
wire rope
counterweight
car
resin
counterbalancing
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.)
Withdrawn
Application number
EP03710316A
Other languages
German (de)
French (fr)
Inventor
Hideaki c/o Mitsubishi Denki Kabushiki K. KODERA
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1602613A1 publication Critical patent/EP1602613A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • B66B11/0055—Arrangement of driving gear, e.g. location or support in the hoistway on the counterweight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/12—Counterpoises
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0673—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a rope configuration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2007—Elevators

Definitions

  • the present invention relates to counterbalancing self-running elevators, in which a drive machine for lifting a car and a counterweight up and down is installed on a counterweight, that improve traction ability without complicating the mechanism of equipments and the wire-roping.
  • Patent Document 1-4 A conventional counterbalancing self-running elevator is shown by Patent Document 1-4.
  • the traction ability is ensured by hanging a wire rope onto a sheave of a drive machine by full turn winding.
  • the traction ability is ensured by increasing a wire-rope winding angle on the sheave by means of a conversion pulley.
  • Patent Document 1 is Japan Patent Laid-Open 124259/1997
  • Patent Document 2 is Japan Patent Laid-Open 255969/1994
  • Patent Document 3 is Japan Patent Laid-Open 37963/1995
  • Patent Document 4 is Japan Patent Laid-Open 137964/1995.
  • a counterbalancing self-running elevator related to present invention includes: a car and a counterweight moving up and down in a hoistway, a wire rope for hanging the car and the counterweight, a return pulley, disposed at the top of the hoistway, for hanging the wire rope thereon, fixing members for fixing each end of the wire rope, and a drive machine that is installed on the counterweight and hanged by the wire rope, for lifting the car and the counterweight up and down, wherein the wire rope is made of resin-coated steel that is coated with a resin having a high frictional coefficient.
  • Fig. 1 is a perspective view of the counterbalancing self-running elevator relevant to Embodiment 1 of the present invention.
  • a car 2 and a counterweight 3 move up and down in a hoistway 1, each moves up and down along a guide rail 4 in the car side and a guide rail 5 in the counterweight side.
  • the car 2 and the counterweight 3 are hanged by a wire rope 6 through a suspension pulley 10 disposed under the car and a return pulley 9 disposed at the top of the hoistway.
  • the ends of the wire rope 6 each are fixed at a wire-rope anchorage 11 on the car side and a wire-rope anchorage 12 on the counterweight side.
  • a drive machine 7 for lifting the car 2 and the counterweight 3 up and down is installed on the counterweight 3, so that the car 2 of the elevator is lifted up and down by this drive machine 7.
  • a resin-coated wire rope having a high frictional coefficient is used for the wire rope 6, and hanged onto a sheave 8 of the drive machine 7, being wound around half the sheave.
  • Fig. 2 is a cross-sectional view of a resin-coated steel wire rope used for the counterbalancing self-running elevator relevant to the present Embodiment.
  • the wire rope 6 relevant to the present invention is a resin-coated steel wire rope 6c in which a steel wire rope (6c-1) is coated with a resin having a high frictional coefficient (6c-2).
  • a resin having the high frictional coefficient there is, for example, urethane rubber whose frictional coefficient is not less than 0.2, which is higher than the frictional coefficient of a steel wire rope (0.1).
  • a steel wire rope coated with a resin having the high frictional coefficient is used as an elevator wire rope, traction ability can be improved without complicating the wire-roping and the mechanism of equipments.
  • the wire rope 6 by which the car and the counterweight are hanged enables the amount of upward and downward floor drift and a sense of wafting to be suppressed, when getting on and off the elevator.
  • the number of wire ropes can be controlled not to increase. For example, when a wire rope of aramid fiber is used for the wire rope 6, from its characteristics, the amount of upward and downward floor drift is likely to increase or the number of wire ropes is sometimes increased more than the number of steel wire ropes.
  • using a resin-coated steel wire rope ensures high traction ability without increasing the amount of upward and downward floor drift and demanding for increasing the number of wire ropes.
  • Fig.3 is a cross-sectional view of a sheave of the drive machine used in a counterbalancing self-running elevator relevant to Embodiment 2.
  • the sheave (8a-1) of the drive machine 7 relevant to the present invention is a resin-coated sheave 8a that is coated with a resin (8a-2) having a high frictional coefficient.
  • a resin having a high frictional coefficient there is, for example, resin of urethane rubber, whose frictional coefficient is not less than 0.2.
  • explanations on the same parts as, or equivalent to, those of Embodiment 1 are omitted, and only parts different from those of Embodiment 1 are described.
  • a counterbalancing self-running elevator related to present invention includes: a car and a counterweight moving up and down in a hoistway, a wire for hanging the car and the counterweight, a return pulley, disposed at the top of the hoistway, on which the wire rope is hanged, fixing members for fixing each end of the wire rope, and a drive machine that is installed on the counterweight, and hanged by the wire rope, for moving the car and the counterweight up and down, wherein the wire rope is made of resin-coated steel coated with a resin having a high frictional coefficient, the traction ability can be improved without complicating the wire-roping and the mechanism of the equipments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

A counterbalancing self-running elevator related to present invention includes: a car and a counterweight moving up and down in a hoistway, a wire rope for hanging the car and the counterweight, a return pulley, disposed at the top of the hoistway, for hanging the wire rope, fixing members for fixing each end of the wire rope, and a drive machine that is installed on the counterweight, and hanged by the wire rope, for moving the car and the counterweight up and down, wherein the wire rope is made of a resin-coated steel coated with a resin having a high frictional coefficient.

Description

TECHNICAL FIELD
The present invention relates to counterbalancing self-running elevators, in which a drive machine for lifting a car and a counterweight up and down is installed on a counterweight, that improve traction ability without complicating the mechanism of equipments and the wire-roping.
BACKGROUND ART
A conventional counterbalancing self-running elevator is shown by Patent Document 1-4. In general, it is important to ensure traction ability in a counterbalancing self-running elevator. In the counterbalancing self-running elevator shown by Patent Document 1, the traction ability is ensured by hanging a wire rope onto a sheave of a drive machine by full turn winding. Moreover, in the counterbalancing self-running elevator shown by Patent Documents 2-4, the traction ability is ensured by increasing a wire-rope winding angle on the sheave by means of a conversion pulley. Patent Document 1 is Japan Patent Laid-Open 124259/1997, Patent Document 2 is Japan Patent Laid-Open 255969/1994, Patent Document 3 is Japan Patent Laid-Open 37963/1995, and Patent Document 4 is Japan Patent Laid-Open 137964/1995.
As described above, these conventional elevators have had various problems such as that the mechanism of the drive machine portion becomes complicated, and related equipments become large, demanding a larger hoist space and rising in its cost. Moreover, there have been problems in that, by hanging the wire rope onto the sheave of the drive machine by full turn winding, and increasing the wire-rope winding angle on the sheave by providing a conversion pulley, a wire-rope is bent frequently, and reversedly bending portions occur, resulting in the life of the wire-rope being short.
DISCLOUSURE OF THE INVENTION
The present invention directed at solving these problems has an object to provide a counterbalancing self-running elevator with high traction ability without complicating the mechanism of equipments and the wire-roping. To achieve this object, a counterbalancing self-running elevator related to present invention includes: a car and a counterweight moving up and down in a hoistway, a wire rope for hanging the car and the counterweight, a return pulley, disposed at the top of the hoistway, for hanging the wire rope thereon, fixing members for fixing each end of the wire rope, and a drive machine that is installed on the counterweight and hanged by the wire rope, for lifting the car and the counterweight up and down, wherein the wire rope is made of resin-coated steel that is coated with a resin having a high frictional coefficient.
BREIF DESCRIPTION OF THE DRAWINGS
  • Fig. 1 is a perspective view illustrating a counterbalancing self-running elevator relevant to Embodiment 1 of the present invention.
  • Fig. 2 is a cross-sectional view illustrating a wire rope of resin-coated steel used in the counterbalancing self-running elevator relevant to Embodiment 1.
  • Fig. 3 is a cross-sectional view illustrating a sheave of a drive machine used in the counterbalancing self-running elevator relevant to Embodiment 2.
    • BEST MODE FOR CARRYING OUT THE INVENTION
    Next, preferred embodiments of the present invention are described below.
    EMBODIMENT 1.
    One of the embodiments of a counterbalancing self-running elevator relevant to the present invention is described using Fig. 1. Fig. 1 is a perspective view of the counterbalancing self-running elevator relevant to Embodiment 1 of the present invention.
    In Fig. 1, a car 2 and a counterweight 3 move up and down in a hoistway 1, each moves up and down along a guide rail 4 in the car side and a guide rail 5 in the counterweight side. The car 2 and the counterweight 3 are hanged by a wire rope 6 through a suspension pulley 10 disposed under the car and a return pulley 9 disposed at the top of the hoistway. The ends of the wire rope 6 each are fixed at a wire-rope anchorage 11 on the car side and a wire-rope anchorage 12 on the counterweight side. Moreover, a drive machine 7 for lifting the car 2 and the counterweight 3 up and down, is installed on the counterweight 3, so that the car 2 of the elevator is lifted up and down by this drive machine 7. Furthermore a resin-coated wire rope having a high frictional coefficient is used for the wire rope 6, and hanged onto a sheave 8 of the drive machine 7, being wound around half the sheave.
    Next, a wire rope used in the elevator relevant to the present Embodiment, is described using Fig. 2. Fig. 2 is a cross-sectional view of a resin-coated steel wire rope used for the counterbalancing self-running elevator relevant to the present Embodiment.
    In Fig. 2, the wire rope 6 relevant to the present invention is a resin-coated steel wire rope 6c in which a steel wire rope (6c-1) is coated with a resin having a high frictional coefficient (6c-2). As a resin having the high frictional coefficient, there is, for example, urethane rubber whose frictional coefficient is not less than 0.2, which is higher than the frictional coefficient of a steel wire rope (0.1).
    As described above, a steel wire rope coated with a resin having the high frictional coefficient is used as an elevator wire rope, traction ability can be improved without complicating the wire-roping and the mechanism of equipments.
    Moreover, by using a wire rope of a resin-coated steel that is coated with a resin having a high frictional coefficient, traction ability can be improved without bending a wire rope frequently and generating reversedly bending portions that can degrade the life of a wire rope.
    Moreover, using a steel wire rope, as the wire rope 6 by which the car and the counterweight are hanged, enables the amount of upward and downward floor drift and a sense of wafting to be suppressed, when getting on and off the elevator. Moreover, the number of wire ropes can be controlled not to increase. For example, when a wire rope of aramid fiber is used for the wire rope 6, from its characteristics, the amount of upward and downward floor drift is likely to increase or the number of wire ropes is sometimes increased more than the number of steel wire ropes. However, using a resin-coated steel wire rope, ensures high traction ability without increasing the amount of upward and downward floor drift and demanding for increasing the number of wire ropes.
    Moreover, because, by using a resin-coated wire rope with a high frictional coefficient, related equipment can be constituted with relatively simple mechanism, without complicating the wire-roping or the mechanism of the drive machine, a counterbalancing self-running elevator that excels at space-saving, low cost and high traction ability, can be obtained.
    EMBODIMENT 2.
    Next, another Embodiment relevant to the present invention is described by using Fig. 3. Fig.3 is a cross-sectional view of a sheave of the drive machine used in a counterbalancing self-running elevator relevant to Embodiment 2.
    In Fig. 3, the sheave (8a-1) of the drive machine 7 relevant to the present invention is a resin-coated sheave 8a that is coated with a resin (8a-2) having a high frictional coefficient. As a resin having a high frictional coefficient, there is, for example, resin of urethane rubber, whose frictional coefficient is not less than 0.2. Moreover, in this Embodiment, explanations on the same parts as, or equivalent to, those of Embodiment 1 are omitted, and only parts different from those of Embodiment 1 are described.
    As described above, because a sheave coated with a resin having a high frictional coefficient is used for the sheave of the drive machine, traction ability can be improved without complicating the wire-roping and the mechanism of equipments.
    Moreover, because, by using a resin-coated sheave coated with a resin having a high frictional coefficient, a wire rope is not bent frequently and reversed bending portions don't occur, traction ability can be improved without degrading the life of the wire rope.
    Furthermore, by using a resin-coated sheave coated with a resin with a high frictional coefficient, a conventional wire rope can be used; therefore an elevator with high traction ability can be obtained in relatively low cost.
    As described above, a counterbalancing self-running elevator related to present invention includes: a car and a counterweight moving up and down in a hoistway, a wire for hanging the car and the counterweight, a return pulley, disposed at the top of the hoistway, on which the wire rope is hanged, fixing members for fixing each end of the wire rope, and a drive machine that is installed on the counterweight, and hanged by the wire rope, for moving the car and the counterweight up and down, wherein the wire rope is made of resin-coated steel coated with a resin having a high frictional coefficient, the traction ability can be improved without complicating the wire-roping and the mechanism of the equipments.

    Claims (2)

    1. A counterbalancing self-running elevator comprising:
      a car and a counterweight each moving oppositely up and down in a hoistway;
      a wire rope for hanging said car and said counterweight;
      a return pulley, disposed at the top of said hoistway, for hanging said wire rope thereon fixing members for fixing each end of said wire rope; and
      a drive machine, installed on the counterweight and hanged by said wire rope, for moving said car and said counterweight up and down, wherein said wire rope is a resin-coated steel wire rope that is coated with a resin having a high frictional coefficient.
    2. A counterbalancing self-running elevator comprising:
      a car and a counterweight each moving oppositely up and down in a hoistway;
      a wire rope for hanging said car and said counterweight;
      a return pulley disposed at the top of the hoistway;
      fixing members for fixing each end of said wire rope; and
      a drive machine, installed on said counterweight, for moving said car and said counterweight up and down; wherein
      a sheave of said drive machine is coated with a resin having a high frictional coefficient.
    EP03710316A 2003-03-12 2003-03-12 Counterbalancing self-running elevator Withdrawn EP1602613A1 (en)

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    PCT/JP2003/002919 WO2004080878A1 (en) 2003-03-12 2003-03-12 Counterbalancing self-running elevator

    Publications (1)

    Publication Number Publication Date
    EP1602613A1 true EP1602613A1 (en) 2005-12-07

    Family

    ID=32983446

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP03710316A Withdrawn EP1602613A1 (en) 2003-03-12 2003-03-12 Counterbalancing self-running elevator

    Country Status (4)

    Country Link
    EP (1) EP1602613A1 (en)
    JP (1) JPWO2004080878A1 (en)
    CN (1) CN1750989A (en)
    WO (1) WO2004080878A1 (en)

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1867597A1 (en) * 2006-06-14 2007-12-19 Inventio Ag Lift
    US8109367B2 (en) 2006-06-14 2012-02-07 Inventio Ag Counterweight and suspension for an elevator without an engine room

    Families Citing this family (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JP5932486B2 (en) * 2012-05-28 2016-06-08 株式会社日立製作所 Elevator equipment
    CN104030136A (en) * 2013-03-08 2014-09-10 黄柏森 Double-driving elevator
    JP5798613B2 (en) * 2013-12-03 2015-10-21 東芝エレベータ株式会社 Elevator counterweight device
    CN107272306A (en) * 2017-07-31 2017-10-20 重庆万建电子工程有限责任公司重庆第分公司 The video camera of belt supporting frame

    Family Cites Families (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3101130A (en) * 1960-10-12 1963-08-20 Silopark S A Elevator system in which drive mechanism is mounted upon the counterweight
    CZ282660B6 (en) * 1994-03-02 1997-08-13 Inventio Ag Bearer rope of lifting and transport facilities
    CN1323933C (en) * 1998-12-11 2007-07-04 株式会社东芝 Elevator device
    JP4135262B2 (en) * 1999-07-15 2008-08-20 三菱電機株式会社 Self-propelled elevator equipment
    US6371448B1 (en) * 1999-10-29 2002-04-16 Inventio Ag Rope drive element for driving synthetic fiber ropes
    AR028236A1 (en) * 2000-05-19 2003-04-30 Carlos Alberto Sors ELEVATOR WHOSE COUNTERWEIGHT, IS ALSO EMBOLO OF THE FLUIDODYNAMIC PROPULSION DEVICE THAT PRODUCES AND CONTROLS ITS DISPLACEMENTS
    WO2002012108A1 (en) * 2000-08-09 2002-02-14 Mitsubishi Denki Kabushiki Kaisha Elevator device
    JP4927277B2 (en) * 2001-09-28 2012-05-09 東芝エレベータ株式会社 elevator

    Non-Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Title
    See references of WO2004080878A1 *

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1867597A1 (en) * 2006-06-14 2007-12-19 Inventio Ag Lift
    US8109367B2 (en) 2006-06-14 2012-02-07 Inventio Ag Counterweight and suspension for an elevator without an engine room

    Also Published As

    Publication number Publication date
    CN1750989A (en) 2006-03-22
    WO2004080878A1 (en) 2004-09-23
    JPWO2004080878A1 (en) 2006-06-08

    Similar Documents

    Publication Publication Date Title
    EP1727760B1 (en) Elevator
    EP1357075B1 (en) Cage device for double deck elevators
    JP2001262482A (en) Wire rope and elevator by using the same
    EA008635B1 (en) Method for installing an elevator, and elevator delivery assembly
    JP2006513942A (en) elevator
    EP2042462B1 (en) Elevator apparatus
    KR101016822B1 (en) Elevator device
    EP1602613A1 (en) Counterbalancing self-running elevator
    EP1862420B1 (en) Elevator apparatus
    EP3789336A1 (en) Tension member and belt for elevator system
    KR101238084B1 (en) Elevator device
    EP1783088A1 (en) Elevator apparatus
    EP3424863A1 (en) Multiple leaders for load bearing member sway reduction
    EP1312573A1 (en) Elevator device
    EP1803676A1 (en) Elevator apparatus
    JP6684473B2 (en) Elevator with multiple counterweights
    JP2011162291A (en) Rope type elevator
    KR20050106476A (en) Counterbalancing self-running elevator
    JP2017210829A (en) Elevator type parking device
    RU85154U1 (en) LIFT (OPTIONS)
    KR20070024501A (en) Elevator apparatus
    RU2518458C1 (en) Passenger lift for multistory buildings
    KR200288350Y1 (en) Elevator
    JP2011026022A (en) Elevator
    KR20070039054A (en) Elevator apparatus

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    17P Request for examination filed

    Effective date: 20050712

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

    RAP1 Party data changed (applicant data changed or rights of an application transferred)

    Owner name: MITSUBISHI DENKI KABUSHIKI KAISHA

    RBV Designated contracting states (corrected)

    Designated state(s): DE

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

    18W Application withdrawn

    Effective date: 20070828