JP2010149968A - Elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator device in which each guide rail can equally receive a load influenced by the shaking of an earthquake or the like. <P>SOLUTION: The elevator device includes: an elevating body (2) driven through a rope and ascending and descending in a hoistway; a guide rail 6 erected in the hoistway; and a guide shoe 8 mounted on the elevating body (2), loosely fitted to the guide rail 6 via a predetermined gap, and guiding the elevating body (2) to ascend and descend along the guide rail 6. In the elevator device, the four guide rails 6 are provided on the corner parts of the elevating body (2) having a rectangular cross section or on the vicinity of the corner parts so as to oppose to each other, and these first to fourth guide rails 6a to 6d are disposed so as to face to each other located on the diagonal line. Further, the first to fourth guide shoes 8a to 8d are diagonally mounted on the elevating body (2) so as to oppose to the first to fourth guide rails 6a to 6d. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rope-type elevator apparatus that guides the lifting and lowering of a lifting body by a guide rail.

  In general, in a rope type elevator apparatus, a lifting body that moves up and down in a hoistway, two guide rails standing on the hoistway, and a guide rail are provided with a predetermined gap. And a guide shoe that is loosely fitted via the guide shoe, and the raising and lowering of the lifting body is guided by two guide rails via the guide shoe.

Further, in the elevator apparatus that drives the car up and down by a screw drive mechanism, guide rollers are provided at the four corners of the rectangular car, and four vertical columns are erected at positions facing these guide rollers, There has been proposed a guide roller that guides the raising and lowering of a car while rolling on a roller guide groove formed along a vertical column (see, for example, Patent Document 1).
JP 2000-86117 (paragraph numbers 0024 to 0029, FIG. 1)

  Based on recent large-scale earthquake disasters, there is a need to review and strengthen earthquake resistance standards for elevator equipment. By the way, in the general elevator apparatus which guides the raising / lowering of the raising / lowering body by the two guide rails erected on both sides of the above-described raising / lowering body, the horizontal direction of the car due to the earthquake, that is, the opposite of the two guide rails When a swing occurs in the direction, a load is applied to one of the guide rails, so the size of the guide rail has been determined on the premise of this load. Therefore, a relatively large guide rail has been installed. In addition, shaking due to an earthquake or the like occurs not only in the left-right direction of the car but also in various directions, and a large load is applied to one guide rail, which may cause the guide shoe to come off from the guide rail.

  The latter, which guides the raising and lowering of the car by four vertical columns, is intended for elevator devices that drive the car up and down by a screw drive mechanism, that is, for home elevators installed in small houses. Yes, it is not intended for general rope-type elevator devices that require a relatively fast car speed. This elevator device has a structure in which a car is arranged on a gantry composed of four vertical columns arranged vertically, and the vertical roller guides the elevator with four vertical columns. It has been difficult to apply to a vehicle that guides the car while rolling along the vertical struts, and guides the lift of the lift by a guide shoe loosely fitted to the guide rail through a predetermined gap.

  The present invention has been made from the above-described prior art, and an object of the present invention is to provide an elevator apparatus in which each guide rail can receive a load acting due to a shake such as an earthquake evenly.

  In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention is driven by a rope and moves up and down in the hoistway, a guide rail standing on the hoistway, and the elevating An elevator apparatus including a guide shoe that is attached to a body and loosely fitted to the guide rail via a predetermined gap and guides the ascending / descending of the elevating body along the guide rail, wherein the guide rail is rectangular And four guide rails are provided so as to face the corners of the lifting body having the cross-sectional shape or the vicinity of the corners, and these guide rails are arranged to face each other on the diagonal lines, and The guide shoe is attached to the elevating body obliquely so as to face the guide rail.

  In the invention according to claim 1 of the present invention configured as above, the front surfaces of the four guide rails are arranged so as to be substantially radial from the center of the lifting body, and the guide shoes are at the four corners of the lifting body. Since it is attached diagonally so as to face the guide rail, when a vibration occurs due to an earthquake or the like, the load acts on each guide rail via guide shoes attached obliquely to the four corners of the lifting body. This makes it possible to evenly distribute the load that acts due to shaking such as an earthquake to the four guide rails.

  According to the present invention, it is possible to evenly distribute the load acting on the swing of an earthquake or the like to the four guide rails, thereby reducing the load applied to one guide rail and reducing the size of the guide rail. It can be suppressed to things. Further, it is possible to prevent the guide shoe from being detached from the guide rail due to shaking, and to improve the safety of the elevator apparatus.

  Hereinafter, an embodiment of an elevator apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 is a top view illustrating an embodiment of an elevator apparatus according to the present invention, and FIG. 2 is an overall schematic configuration diagram of the elevator apparatus according to the present embodiment.

  As shown in FIG. 2, the elevator apparatus is a hoist that moves up and down in the hoistway 1, that is, a car 2 and a counterweight 3, and a hoist installed in a machine room 1 a formed in the upper part of the hoistway 1. 4 and a rope 5 that is wound around the hoisting machine 4, one end is connected to the car 2 and the other end is connected to the counterweight 3, and a car that is erected on the hoistway 1 and guides the elevator 2 And a counterweight guide rail 7 which stands on the hoistway 1 and guides the lifting and lowering of the counterweight 3.

  And the elevator apparatus of this embodiment is arrange | positioned so that the guide rail 6 for cars may face the depth side corner | angular part of the passenger car 2 which has a rectangular cross-sectional shape, as shown in FIG.1 and FIG.2. A first car guide rail 6a, a second car guide rail 6b, and a third car guide rail 6c arranged to face the vicinity of the front corner of the car 2, a fourth car guide. A total of four rails 6d are provided, and the first to fourth car guide rails 6a to 6d are arranged so as to face the car guide rails located diagonally.

  Further, the car 2 is attached to a position facing the first to fourth car guide rails 6a to 6d, and the corresponding first to fourth car guide rails 6a to 6d are fixed to each other. A first guide shoe 8a, a second guide shoe 8b, and a third guide that are loosely fitted through the gap and guide the raising and lowering of the car 2 along the first to fourth car guide rails 6a to 6d. A shoe 8c and a fourth guide shoe 8d are provided.

  In the present embodiment, when the building in which the elevator apparatus is installed due to an earthquake or the like swings leftward in FIG. 1, the load of the car 2 suspended by the rope 5 acts in the direction of arrow A. At this time, the first to fourth car guide rails 6a to 6d are arranged so that the front faces thereof are substantially radial from the center of the car 2, and the first to fourth guide shoes 8a to 8d are arranged on the car. 2 at the four corners so as to be opposed to the first to fourth car guide rails 6a to 6d, the loads are respectively passed through the first to fourth guide shoes 8a to 8d. Acting on the first to fourth car guide rails 6a to 6d. This makes it possible to evenly distribute the load acting on the seismic shaking to the four car guide rails 6.

  According to the present embodiment, a load acting due to shaking such as an earthquake can be evenly distributed to the four car guide rails 6, thereby reducing the load applied to one guide rail, and the guide rail The size of can be kept small. Further, it is possible to prevent the first to fourth guide shoes 8a to 8d from being detached from the first to fourth car guide rails 6a to 6d due to shaking, and to improve the safety of the elevator apparatus.

It is a top view which shows one Embodiment of the elevator apparatus which concerns on this invention. It is a whole schematic block diagram of the elevator apparatus in this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Passenger car 3 Counterweight 4 Hoisting machine 5 Rope 6a-6d Guide rail for 1st-4th cage 7 Guide rail for counterweight 8a-8d 1st-4th guide shoe

Claims (1)

A lifting body that is driven via a rope and moves up and down in the hoistway, a guide rail standing on the hoistway, and attached to the elevating body and loosely fitted to the guide rail via a predetermined gap. In the elevator apparatus comprising a guide shoe for guiding the lifting and lowering of the lifting body along the guide rail,
Four guide rails are provided so as to face the corners of the lifting body having a rectangular cross-sectional shape or near the corners, and these guide rails face each other on the diagonal guide rails. The elevator apparatus is characterized in that the guide shoe is obliquely attached to the elevating body so as to face the guide rail.

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