WO2006129358A1

WO2006129358A1 - Elevator apparatus

Info

Publication number: WO2006129358A1
Application number: PCT/JP2005/010126
Authority: WO
Inventors: Naoki Hashiguchi
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2005-06-02
Filing date: 2005-06-02
Publication date: 2006-12-07
Also published as: JPWO2006129358A1; EP1886956A1; EP1886956A4

Abstract

An elevator apparatus, wherein a car is lifted by the driving force of a drive device in a hoistway. The drive device is supported by a frame body disposed at the inside tip part of the hoistway. Heat insulators cutting off heat conducted from the outside of the frame body to the drive device are installed on the frame body. These heat insulators comprise, for example, an upper heat insulator fixed to the upper part of the frame body so as to face the ceiling surface of the hoistway.

Description

Specification

Elevator equipment

Technical field

TECHNICAL FIELD [0001] The present invention relates to an elevator apparatus in which a drive device for raising and lowering a car is arranged at the top of a hoistway.

Background art

[0002] In a conventional elevator apparatus, a drive device for raising and lowering a car is arranged at the top of the hoistway. The driving device is disposed above the car so as to overlap the car on the vertical projection plane (see, for example, Patent Document 1).

[0003] Patent Document 1: JP 2000-255933 A

Disclosure of the invention

Problems to be solved by the invention

[0004] In the conventional elevator apparatus as described above, the drive device is arranged at the top of the hoistway, but heat from the building roof heated by sunlight is transmitted to the top of the hoistway. For this reason, the service life of bearings and motor devices used in drive devices that are likely to become high temperature is shortened. In particular, in summer and high temperature buildings where the temperature is high, the effect of heat on the drive unit is significant. On the other hand, there is also a method of forced cooling with a fan etc. For example, when the building is closed for several days and the elevator device is in a dormant state, the elevator fan remains stopped. The top temperature in the hoistway is likely to increase.

[0005] The present invention has been made to solve the above-described problems, and an elevator that can reduce the influence of heat on a driving device disposed at the top of a hoistway with a simple structure. The object is to obtain a device. Means for solving the problem

[0006] An elevator apparatus according to the present invention includes a car that is raised and lowered in a hoistway, a frame body that is disposed at the top of the hoistway, a drive device that is supported by the frame body and moves up and down the car, and a frame body. And a heat insulating material that shields heat transmitted from the outside of the frame to the drive device. In addition, an elevator apparatus according to the present invention is provided in a car that is raised and lowered in a hoistway, a driving device that is arranged at the top of the hoistway, and that raises and lowers the car, and a ceiling surface of the hoistway. It has a ceiling insulation that blocks the heat transferred to the hoistway.

Further, the elevator apparatus according to the present invention is provided in a car that is lifted and lowered in the hoistway, a drive device that moves up and down the car, and an area directly above the hoistway on the roof of the building, Elevator roof insulation that enhances heat insulation compared to other parts of the roof.

Brief Description of Drawings

FIG. 1 is a plan view showing a main part of an elevator apparatus according to Embodiment 1 of the present invention.

2 is a schematic front view showing the top of the hoistway of FIG.

FIG. 3 is a schematic front view showing the top of a hoistway of an elevator apparatus according to Embodiment 2 of the present invention.

FIG. 4 is a schematic front view showing the top of a hoistway of an elevator apparatus according to Embodiment 3 of the present invention.

FIG. 5 is a schematic front view showing the top of a hoistway of an elevator apparatus according to Embodiment 4 of the present invention.

FIG. 6 is a schematic front view showing the top of a hoistway of an elevator apparatus according to Embodiment 5 of the present invention.

FIG. 7 is a schematic front view showing the top of a hoistway of an elevator apparatus according to Embodiment 6 of the present invention.

FIG. 8 is a schematic front view showing the top of a hoistway of an elevator apparatus according to Embodiment 7 of the present invention.

FIG. 9 is a schematic front view showing the top of a hoistway of an elevator apparatus according to Embodiment 8 of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

Embodiment 1.

FIG. 1 is a plan view showing a main part of an elevator apparatus according to Embodiment 1 of the present invention. In the figure, in the hoistway 1, a pair of car guide rails 2a, 2b and a pair of counterweight guide rails 3a, 3b are installed. The car 4 is raised and lowered in the hoistway 1 by the car guide rails 2a and 2b. The counterweight 5 is raised and lowered in the hoistway 1 by being guided by the counterweight guide rails 3a and 3b.

[0009] The car 4 has a car frame (not shown) and a car room 6 supported by the force car frame. The car room 6 includes a front face 6a provided with a car entrance, a rear face 6b facing the front face 6a, first and second side faces 6c and 6d facing each other, an upper face 6e, and a bottom face (not shown). And have. The counterweight 5 is arranged on the side of the car 4 so as to face the second side surface 6d when it is located at the same height as the force car 4.

[0010] The extension lines of the center lines of the car guide rails 2a and 2b on the vertical projection plane are parallel to each other at intervals in the depth direction of the car 4. That is, the car guide rails 2 a and 2 b are arranged so as to be shifted from each other in the depth direction of the car 1. The car guide rail 2a faces the first side face 6c behind the center of gravity G of the car 4. Further, the force guide rail 2b faces the second side surface 6d in front of the center of gravity G of the car 4. The counterweight 5 is placed in the space behind the car guide rail 2b in the hoistway 1!

At the top of the hoistway 1, a driving device 7 that raises and lowers the car 4 and the counterweight 5 is disposed. The drive device 7 has a drive device body 8 including a motor and a brake, and a drive sheave 9 rotated by the motor. As the driving device 7, a thin hoisting machine having an axial dimension smaller than a dimension perpendicular to the axial direction is used. Further, the drive device 7 is arranged so that the rotation shaft of the drive sheave 9 is vertical or almost vertical.

[0012] The drive sheave 9 is wound with a plurality of first ropes 11 (only one is shown in the figure) and a plurality of second ropes 12 (only one is shown in the figure). . The first and second ropes 11 and 12 each have a car connecting end connected to the upper part of the car 4 and a counterweight connecting end connected to the upper part of the counterweight 5. . That is, the car 4 and the counterweight 5 are suspended in the hoistway 1 by the first and second ropes 11 and 12 in a 1: 1 roving manner.

[0013] It is preferable that the connection portion of the first rope 11 to the car 4 and the connection portion of the second rope 12 to the car 4 are arranged on the object with the center of gravity G at the vertical projection plane. . With this arrangement Thus, the suspension center of the force 4 can be made to coincide with the center of gravity G.

[0014] At the top of the hoistway 1 is a first cage 13 that guides the first rope 11 to the upper part of the car 4, and a first fishing that guides the first rope 11 to the upper part of the counterweight 5. The counterweight wheel 14, the second rope 12 leading the second rope 12 to the top of the car 4, the second counterwheel 15 leading the second rope 12 to the top of the counterweight 5 the second counterweight wheel 16 and a direction change pulley 17 for reversing the first rope 11 from the drive sheave 9 toward the first car return wheel 13 is arranged.

[0015] The return wheels 13 to 16 are arranged so that their rotation axes are horizontal. Further, the direction changing pulley 17 is arranged so that the rotation axis thereof is vertical or almost vertical.

FIG. 2 is a schematic front view showing the top of the hoistway 1 in FIG. A metal frame 18 that supports the driving device 7 is supported on the upper part of at least two of the guide rails 2a, 2b, 3a, and 3b. 2, the return wheels 13 to 16 and the direction change pulley 17 are also supported by the force frame body 18 omitted in FIG. The frame 18 is a structure in which a plurality of structural members including beams and vertical members are combined, and does not cover the drive device 7 and the like.

The frame body 18 is provided with an upper heat insulating material 19 as a heat insulating material that blocks heat transmitted from the outside of the frame body 18 to the driving device 7. The upper heat insulating material 19 is horizontally fixed to the upper portion of the frame 18 so as to face the ceiling surface la of the hoistway 1. The upper heat insulating material 19 may be provided so as to overlap the entire car 4 on the vertical projection plane, or may be provided so as to overlap only the peripheral portion of the driving device 7. The insulation effect for the device 7 is increased. In FIG. 1, the frame body 18 and the upper heat insulating material 19 are not shown.

[0018] In such an elevator apparatus, since the upper heat insulating material 19 is provided on the frame 18, it is possible to reduce the influence of heat on the driving device 7 arranged at the top of the hoistway 1 with a simple structure. it can.

In addition, since the work of attaching the upper heat insulating material 19 to the frame 18 can be performed at the factory before product shipment, it is possible to prevent the workability of the installation work at the site from being deteriorated.

[0019] Embodiment 2.

Next, FIG. 3 is a schematic front view showing the top of the hoistway 1 of the elevator apparatus according to Embodiment 2 of the present invention. In the figure, a side heat insulating material 20 as a heat insulating material is fixed to the side surface of the frame 18 so as to face the hoistway wall lb. Other configurations are the same as in the first embodiment. It is the same.

In such an elevator apparatus, since the side heat insulating material 20 is fixed to the frame body 18 in addition to the upper heat insulating material 19, the influence of heat on the driving device 7 can be reduced more reliably. The work of attaching the side heat insulating material 20 to the frame 18 can also be performed at the factory before the product is shipped.

[0021] Embodiment 3.

Next, FIG. 4 is a schematic front view showing the top of the hoistway 1 of the elevator apparatus according to Embodiment 3 of the present invention. In the figure, a lower heat insulating material 21 as a heat insulating material is fixed to the lower part of the frame 18 so as to face the upper surface 6 e of the car 4. Other configurations are the same as those in the second embodiment.

In such an elevator apparatus, since the lower heat insulating material 21 is fixed to the frame body 18 in addition to the upper heat insulating material 19 and the side heat insulating material 20, the influence of heat on the driving device 7 is more reliably reduced. be able to.

Also, the work of attaching the lower heat insulating material 21 to the frame 18 can be performed at the factory before the product is shipped.

[0023] Embodiment 4.

Next, FIG. 5 is a schematic front view showing the top of the hoistway 1 of the elevator apparatus according to Embodiment 4 of the present invention. In the figure, metal materials 22, 23, and 24 that reflect heat transmitted from the outside of the frame 18 to the driving device 7 are overlapped on the surface of the heat insulating materials 19, 20, and 21 on the frame 18 side. Further, these metal materials 22, 23, 24 are subjected to surface treatment for increasing the heat reflectivity. Other configurations are the same as those in the third embodiment.

[0024] In such an elevator apparatus, the heat that passes through the heat insulating materials 19, 20, 21 and enters the frame 18 is reflected by the metal materials 22, 23, 24, and the heat insulating materials 19, 20, The heat rays radiated from 21 are also reflected by the metal materials 22, 23, 24. As a result, the influence of heat on the drive device 7 can be more reliably reduced. Further, the intrusion of dust and dust from the heat insulating materials 19, 20, 21 into the frame 18 is blocked by the metal materials 22, 23, 24, so that the driving device 7 can be kept clean.

In addition, surface treatment was applied to the metal materials 22, 23, and 24, improving heat reflection efficiency. Thus, the influence of heat on the drive device 7 can be reduced more reliably.

[0025] Embodiment 5.

Next, FIG. 6 is a schematic front view showing the top of the hoistway 1 of the elevator apparatus according to Embodiment 5 of the present invention. In the figure, a metal material 25 that reflects heat transmitted from the outside of the frame 18 to the driving device 7 is superimposed on the upper surface of the upper heat insulating material 19 so as to face the ceiling surface la of the hoistway 1. The metal material 25 is provided with a number of irregularities so as to increase its surface area. Other configurations are the same as those in the third embodiment.

[0026] In such an elevator apparatus, since the metal material 25 is provided on the upper heat insulating material 19, the heat rays applied to the upper heat insulating material 19 can be reflected by the metal material 25, and the drive device 7 The influence of heat on the can be reduced more reliably.

In addition, since the metal material 25 is provided with a large number of irregularities, heat dissipation from the metal material 25 to the air flow generated in the hoistway 1 can be promoted, and this also prevents the temperature of the drive device 7 from rising. Can do.

[0027] Embodiment 6.

Next, FIG. 7 is a schematic front view showing the top of the hoistway 1 of the elevator apparatus according to Embodiment 6 of the present invention. In the figure, a ceiling heat insulating material 26 is fixed to the ceiling surface la of the hoistway 1 to block heat transmitted from the outside of the hoistway 1 to the hoistway 1 through the ceiling.

. A wall heat insulating material 27 that blocks heat transmitted from the outside of the hoistway 1 to the hoistway 1 is fixed to the hoistway wall lb at the top of the hoistway 1.

[0028] In such an elevator device, since the ceiling heat insulating material 26 is fixed to the ceiling surface la, the temperature rise at the top in the hoistway 1 due to heat intrusion from an external force can be efficiently suppressed, and the drive device 7 can reduce the influence of heat.

In addition, since the wall insulation 27 is fixed to the hoistway wall lb surrounding the top of the hoistway 1, the temperature rise at the top of the hoistway 1 due to heat intrusion from the outside can be more efficiently suppressed. .

[0029] The ceiling heat insulating material 26 of the sixth embodiment may be provided in the elevator apparatus of the first to fifth embodiments.

Further, a metal material as shown in Embodiments 4 and 5 may be stacked on the ceiling heat insulating material. [0030] Embodiment 7.

Next, FIG. 8 is a schematic front view showing the top of the hoistway 1 of the elevator apparatus according to Embodiment 7 of the present invention. In the figure, on the roof of the building, in the region directly above the hoistway 1 is fixed an elevator roof heat insulating material 28 that has higher heat insulation than the other parts of the roof. The elevator roof insulation 28 is added only to the area directly above the hoistway 1 separately from the building insulation provided on the entire roof. Other configurations are the same as those in the fourth embodiment.

[0031] In such an elevator apparatus, since the elevator roof insulation 28 is fixed on the roof of the building, it is possible to efficiently suppress the temperature rise at the top in the hoistway 1 due to heat intrusion from the outside. The influence of heat on the driving device 7 can be reduced.

[0032] Embodiment 8.

Next, FIG. 9 is a schematic front view showing the top of the hoistway 1 of the elevator apparatus according to Embodiment 7 of the present invention. In the figure, a metal material 29 that reflects heat is superimposed on the lower surface of the elevator roof heat insulating material 28. In addition, the laminated body of the elevator roof heat insulating material 28 and the metal material 29 is installed on the roof via a plurality of support legs 30 so as to leave a gap between it and the roof. Other configurations are the same as those in the seventh embodiment.

[0033] In such an elevator apparatus, since the heat ray that has passed through the roof heat insulating material 28 for the elevator is reflected by the metal material 29, the temperature rise at the top of the hoistway 1 due to the heat penetration of external force is more efficient. It can be suppressed well, and the influence of heat on the driving device 7 can be reduced. In addition, since a gap is provided between the metal material 29 and the rooftop, the intrusion of heat into the hoistway 1 can be more reliably suppressed.

[0034] In the above example, the counterweight 5 is arranged so that the counterweight 5 is located on the side of the car 4 so that the counterweight faces the back of the car when it is located at the same height as the car. It may be placed behind the.

Further, the layout of the entire elevator apparatus is not limited to the above example. For example, the present invention can be applied to a 2: 1 roving type elevator apparatus.

Furthermore, it is needless to say that cooling means for forcibly cooling the drive device may be added during the operation of the force elevator apparatus described only for the heat insulating structure in the above example. Furthermore, as the heat insulating material, for example, a flat plate, a sheet, or a layer can be used!

Furthermore, as the metal material, for example, a flat plate or a film can be used.

Claims

The scope of the claims

[1] a car that is raised and lowered in the hoistway,

A frame disposed at the top of the hoistway;

A driving device that is supported by the frame and moves the car up and down; and

A heat insulating material that is provided on the frame and blocks heat transmitted from the outside of the frame to the driving device.

Elevator equipment that is equipped with.

[2] The elevator apparatus according to claim 1, wherein the heat insulating material includes an upper heat insulating material fixed to an upper portion of the frame body so as to face a ceiling surface of the hoistway.

[3] The elevator apparatus according to [1], wherein the heat insulating material includes a side heat insulating material fixed to a side surface of the frame body so as to face the hoistway wall.

[4] The elevator apparatus according to claim 1, wherein the heat insulating material includes a lower heat insulating material fixed to a lower portion of the frame so as to face an upper surface of the car.

5. The elevator apparatus according to claim 1, further comprising a metal material that is superimposed on the heat insulating material and reflects heat transmitted from the outside of the frame to the driving device.

6. The elevator apparatus according to claim 5, wherein the metal material is subjected to a surface treatment for increasing heat reflectivity.

7. The elevator apparatus according to claim 5, wherein the metal material is provided with a number of irregularities so as to increase the surface area.

[8] A car that is raised and lowered in the hoistway,

A drive device that is arranged at the top of the hoistway and moves the car up and down, and a ceiling heat insulating material that is provided on the ceiling surface of the hoistway and blocks heat transmitted from the outside of the hoistway to the hoistway

Elevator equipment that is equipped with.

9. The elevator apparatus according to claim 8, further comprising a wall insulator provided on a hoistway wall at the top of the hoistway and blocking heat transferred from the outside of the hoistway to the hoistway.

[10] A car that is raised and lowered in the hoistway, A drive device arranged at the top of the hoistway, for raising and lowering the car, and an elevator rooftop that is provided in a region directly above the hoistway on the roof of the building and has higher heat insulation than other parts of the rooftop Insulation

Elevator equipment that is equipped with.

11. The elevator apparatus according to claim 10, further comprising a metal material that is stacked on the elevator roof heat insulating material and reflects heat.

12. The elevator according to claim 11, wherein the laminate of the elevator roof heat insulating material and the metal material is installed on the roof through support legs so as to leave a gap between the roof and the roof. Device.