EP1857399A1 - Führungsschiene für einen aufzug - Google Patents

Führungsschiene für einen aufzug Download PDF

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Publication number
EP1857399A1
EP1857399A1 EP05720229A EP05720229A EP1857399A1 EP 1857399 A1 EP1857399 A1 EP 1857399A1 EP 05720229 A EP05720229 A EP 05720229A EP 05720229 A EP05720229 A EP 05720229A EP 1857399 A1 EP1857399 A1 EP 1857399A1
Authority
EP
European Patent Office
Prior art keywords
rail
base portion
guide
elevator
guide rail
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Withdrawn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
EP05720229A
Other languages
English (en)
French (fr)
Inventor
Nobuhito c/o Mitsubishi Electric Corp. FUNAI
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 EP1857399A1 publication Critical patent/EP1857399A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B66B7/022—Guideways; Guides with a special shape

Definitions

  • the present invention relates to elevator guide rails for guiding within an elevator hoistway up-and-down movement of the elevator car as well as the elevator counterweight.
  • An elevator is so configured that an elevator car and its counterweight suspended via the main rope within a hoistway vertically travel in a jig-back way.
  • the elevator car and the counterweight are guided by guide rails.
  • the guide rails are laid across the vertical travel paths via rail supporting members at a predetermined spacing on inside walls of the hoistway.
  • a conventional guide rail a T-shaped rail defined in ISO standard or Japan Elevator Association Standard is used, which is formed in an approximate T-shape in which a rail portion rises from a platelike base portion.
  • the base portion is mounted on the rail supporting members, and the elevator car and the counterweight are guided on the rail portion. (e.g., see Patent Document 1).
  • Patent Document 1 Japanese Laid-open Patent Publication 238045/2003 (Pages 3 and 4, and Figs. 1 and 2)
  • a guide rail which guides an elevator car and a counterweight as described above, is subject to load from the elevator car or the counterweight by an earthquake or emergency stop. Therefore, the strength against the load is required.
  • the guide rails are laid across the vertical travel paths, the longer the vertical travel paths, the more a required amount of guide rail per elevator car.
  • the guide rail size also increases. For those reasons, for an elevator, guide rails in which the required amount of material is decreased while ensuring a desired strength, in other words, guide rails that require a small amount of material with respect to the strength are desired.
  • the present invention has been made to resolve such problems, and aims to achieve guide rails in which a required amount of material is decreased while ensuring a desired strength, in other words, guide rails that require a small amount of material with respect to the strength.
  • An elevator guide rail relevant to the present invention is formed in an approximate T-shape composed of a platelike base portion and a rail portion rising therefrom, and formed so that the rail portion is engaged with a guide unit to guide up-and-down movement of an elevator car or its counterweight, and a recess is formed in the midportion of the bottom side of the base portion.
  • 1 guide rail; 2: base portion; 2a: sloping surface; 2b: arc-section recess; 2c: rectangular-section recess; 3: rail portion; 3a: rail head portion; 3b: rail neck portion; 4: elevator car; 5: guide units; 6: rail brackets; 7: rail clips; 8: bolts; 9: screw nuts; 10: guide rollers
  • Fig. 1 through Fig. 3 are diagrams illustrating Embodiment 1 of the present invention.
  • Fig. 1 is a cross-sectional view of a guide rail in the present embodiment
  • Fig. 2 illustrates an example in which the guide rails are applied to an elevator
  • Fig. 3 is a diagram comparing the guide rail in the present embodiment with a conventional guide rail
  • Fig. 4 is a diagram illustrating a state in which the guide rail in the present embodiment is used.
  • the guide rail 1 is configured such that a rail portion 3 is formed upright from a platelike base portion 2, to exhibit an approximate T-shapo.
  • Sloping surfaces 2a are formed on the top face of the base portion 2, and an arc-section recess 2b is formed in the midportion of the bottom side.
  • a flat portion of the bottom side of the base portion is fixed to unillustrated rail brackets, and the rail brackets are fixed to inside walls of the hoistway at a predetermined spacing, whereby the guide rails 1 are laid along the hoistway.
  • the rail portion 3 includes a.rail head portion 3a for engaging with an unillustrated guide unit, and the rail head portion 3a is connected to the base portion via a rail neck portion 3b that is slimmer than the rail head width. There portions are integrally formed, to constitute the guide rail 1.
  • Fig. 2 illustrates an example in which the guide rails 1 are applied to an elevator.
  • Fig. 2 (a) illustrates a top view, and (b) illustrates a front view.
  • the guide units 5 are attached to four corners of the elevator car 4.
  • the guide units 5 are engaged with the guide rails 1, and guide to the guide rails 1 the elevator car 4 for traveling vertically.
  • the guide rails 1 are fixed at a predetermined spacing via rail brackets 6 on the inside walls of the hoistway.
  • the seismic force thereof acts on the guide rails 1 via the guide units 5 as a force Fx in the apical direction of the rail head portion 3a and a force Fy in the lateral-side direction thereof.
  • the guide rails 1 are subject to bending moments by two-directional forces Fx and Fy due to an earthquake between the fixed points thereof, so that the guide rails require a desired strength against the bending moments.
  • FIG. 3 illustrates comparison with a conventional ISO-standard T-shaped rail, for example.
  • the guide rail 1 according to the present embodiment is formed so that a recess 2b is formed in the midportion of the bottom side of the base portion 2, and the recessed portion in the midportion of the bottom side of the base portion 2 is redistributed to both edges of the base portion 2 and to the top of the rail head portion 3a so that the figure center A of the cross section is approximately the same position.
  • the guide rail is formed so that the height H1 of the edge faces of the base portion 2 and the gradient angle of the sloping surface 2a of the base portion 2 are the same as those of the ISO-standard T-shaped rail, and the width B of the rail head portion 3a and the height H2 of the rail head portion 3a are the same as those of the ISO-standard T-shaped rail.
  • the guide rail 1 has the same sectional area as the conventional ISO-standard T-shaped rail, by forming the recess 2b in the midportion of the base portion 2, the occupied area nearer to the figure center A of the cross section is decreased, and the recessed portion is redistributed to portions distant from the figure center A of the cross section (to both edges of the base portion 2 and the top of the rail head portion 3a), whereby the geometrical moment of inertia can be increased, and the section modulus can be increased as well. Accordingly, using the same required amount of material as the conventional ISO-standard T-shaped rail, the strength against bending moments in two directions (horizontal and vertical directions in Fig. 3) can be increased.
  • FIG. 4 illustrates the example of use.
  • Rail clips 7 are fixed to a rail bracket 10 by the sloping surface 2a of the base portion 2 being fastened with bolts 8 and screw nuts 9, whereby the guide rail 1 is fixed to the rail bracket 10.
  • guide rollers 11 serving as a guide unit are engaged with both the side faces and the edge of the rail head portion 3a.
  • the guide rollers guide up-and-down movement of an unillustrated elevator car or counterweight equipped with a guide unit.
  • the guide rail 1 is the same as a conventional ISO-standard T-shaped rail in the height of the edge faces of the base portion 2, the gradient angle of the sloping surface 2a of the base portion 2, the width of the rail head portion 3a, and the height of the rail head portion 3a. Therefore, regarding the rail clips 7 for fixing the guide rail 1 and the guide rollers 10 serving as a guide unit, existing conventional parts can be used. Accordingly, without using new parts, the guide rail 1 of high strength, for which a required amount of material is small, can be applied to an elevator, which is economical.
  • an arc-section recess 2b is formed in the midportion of the base portion 2, it is not so limited.
  • a rectangular-section recess 2c can be formed in the midportion of the base portion 2 as in Fig. 5.
  • an arc-section recess is more effective, because the smaller the area of components close to the figure center of the cross section and the larger the area of components distant from the figure center, the greater the geometrical moment of inertia with the same required amount of material.
  • an elevator guide rail 1 relevant to the present invention is suitable to be used for apparatuses guiding up-and-down movement of an elevator car or its counterweight along a hoistway.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP05720229A 2005-03-08 2005-03-08 Führungsschiene für einen aufzug Withdrawn EP1857399A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/003957 WO2006095413A1 (ja) 2005-03-08 2005-03-08 エレベータ用ガイドレール

Publications (1)

Publication Number Publication Date
EP1857399A1 true EP1857399A1 (de) 2007-11-21

Family

ID=36953024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05720229A Withdrawn EP1857399A1 (de) 2005-03-08 2005-03-08 Führungsschiene für einen aufzug

Country Status (4)

Country Link
EP (1) EP1857399A1 (de)
JP (1) JPWO2006095413A1 (de)
CN (1) CN101031493A (de)
WO (1) WO2006095413A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20111190A1 (it) * 2011-06-29 2012-12-30 Monteferro S P A Guida per ascensori, montacarichi e similari, nonché metodo per realizzare tale guida

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2330296B1 (es) * 2008-06-06 2010-09-22 S.A. De Vera (Savera) Guia de ascensor.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52147364U (de) * 1976-05-04 1977-11-08
JPS61216831A (ja) * 1985-03-20 1986-09-26 Hitachi Ltd 長尺形材の製造方法
JPH0218279A (ja) * 1988-07-06 1990-01-22 Mitsubishi Electric Corp エレベータのガイドレール固定装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006095413A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20111190A1 (it) * 2011-06-29 2012-12-30 Monteferro S P A Guida per ascensori, montacarichi e similari, nonché metodo per realizzare tale guida
WO2013001460A1 (en) * 2011-06-29 2013-01-03 Monteferro S.P.A. Guide for elevators, lifts and the like, and method for manufacturing said guide
RU2600554C2 (ru) * 2011-06-29 2016-10-20 Монтеферро С.П.А. Направляющая для лифтов или подъемников и способ изготовления упомянутой направляющей

Also Published As

Publication number Publication date
WO2006095413A1 (ja) 2006-09-14
JPWO2006095413A1 (ja) 2008-08-14
CN101031493A (zh) 2007-09-05

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