JP2001072351A - elevator - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide an elevator capable of reducing a machine room in which a hoist is arranged. A hoistway (1) and a machine room (30) are configured as a continuous space, and a support beam member (2) is provided by support portions (18a, 18b) provided at a boundary between a hoistway side wall (1a) and a machine room side wall (30a).
0, and at least the hoisting machine 1
4 is mounted and supported. In particular, the support beam member 20 is not a blockage of the entire floor surface but a beam-shaped member.
Also, a maintenance space having a sufficient area leading from the hoistway 1 to the inside of the machine room 30 was secured on the side of the hoisting machine 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator having a hoist disposed above a hoistway.

[0002]

2. Description of the Related Art Generally, in a rope type elevator,
Install a car and counterweight in the hoistway formed in the building, install a hoisting machine or control panel on the floor in the machine room formed at the top of the building, and attach one end of the rope wound around this hoisting machine. The car was connected to a counterweight, the other end of the rope was connected to the center of the crosshead above the car, and the car was driven up and down by a hoist.

[0003]

However, in the conventional elevator, since one end of the rope is connected to the center of the crosshead above the car, the sheave of the hoist installed in the machine room is positioned at the corresponding position. And considering the maintenance space for the equipment in the machine room, the horizontal projection plane of the machine room will be larger than that of the hoistway, and the layout of the building where the elevator will be installed will be small. Was restricted.

An object of the present invention is to provide an elevator capable of reducing a machine room in which a hoist is arranged.

[0005]

According to the present invention, in order to achieve the above object, a hoist is provided in a machine room formed above a hoistway, and the hoist is inserted into the hoistway via a rope by the hoist. In the elevator for driving the provided car, the machine room is formed spatially continuous with the hoistway, and a support portion is provided at a boundary between the hoistway side wall of the hoistway and the machine room side wall of the machine room. The supporting beam member is supported and fixed by the supporting portion, and the hoisting machine is mounted and supported on the supporting beam member.

In the elevator according to the present invention, as described above, a machine room spatially continuous with the hoistway is formed above the hoistway, and is supported by the support provided at the boundary between the hoistway side wall and the machine room side wall. Since the beam member was fixed and the hoisting machine was mounted and supported on the support beam member, a sufficient maintenance space for communication between the hoistway and the machine room can be secured by the support beam member. Can be made smaller than before.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view showing an elevator according to an embodiment of the present invention. A machine room 30 in a space spatially continuous with the hoistway 1 is provided above the hoistway 1.
The machine room 30 is a small space surrounded by a machine room side wall 30a provided at a position protruding substantially over or slightly outside the hoistway side wall 1a constituting the hoistway 1. The control panel 21 and the hoisting machine 14 are installed inside. At the top of the hoistway 1, there is no machine room floor surface as in the prior art, and an opening 17 is provided so that the hoisting machine 14 can carry in and out.
Is formed.

At the top of the hoistway side wall 1a that forms the hoistway 1, there are provided support portions 18a and 18b formed of a pair of beams and the like located in the direction of the entrance and exit of the elevator and on the back side thereof, and between the support portions 18a and 18b. A supporting beam member 20 serving as a machine beam having a cradle 19, a hoisting machine 14 on the supporting beam member 20, and a control panel 21 located closer to the entrance of the elevator than the hoisting machine 14. Is placed. The pair of support portions 18a, 18b may be formed on both sides of the entrance of the elevator at the boundary between the hoistway side wall 1a and the machine room side wall 30a, or may be provided on four sides of the same portion and select a pair as necessary. It can also be used for bridging the support beam member 20.

In the hoistway 1, a pair of car guide rails 5 for guiding the car 4 and a pair of counterweight guide rails 7 for guiding the counterweight 6 are fixed by brackets 2 and 3, respectively. The guide rails 5 and 7 extend from the bottom to the vicinity of the top of the hoistway 1. Hoistway 1 in one car guide rail 5
The rope end 13 is fixed to a portion located above the hoistway 1. The rope end 13 is fixed to a portion located above the hoistway 1 in one of the counterweight guide rails 7.
5 is fixed. A pair of pulleys 9 which are sheaves are attached to a lower portion of the car 4, and a pulley 10 is attached to an upper portion of the counterweight 6. Rope end 1
The rope 11 whose one end 12 is fixed to the rope 3 is hung down, wound around a pair of pulleys 9, then raised, wound around the sheave 14 a of the hoisting machine 14, and then hung down again and wound around the pulley 10. After that, the other end 16 is connected to the rope end 15.

FIG. 2 is a cross-sectional view of the elevator shown in FIG. The machine room 30 is provided at the upper part of the hoistway 1 in the direction of the entrance and exit of the elevator and the support part 18 provided on the back side.
a, machine chamber side wall 30a protruding outward by the amount of a, 18b
A machine room side wall 30 formed on the extension of the machine room side wall 1a in the hoistway 1 on both sides with respect to the entrance of the elevator.
b and a ceiling portion. The support portions 18a,
A hoisting machine 14 is mounted on the support beam member 20 disposed between the rails 18b, and the hoisting machine 14 is mounted on the horizontal projection plane viewed vertically as shown in FIG. Basket 4
The sheave 14a is disposed between the shaft 1 and the hoistway side wall 1a or the machine room side wall 30a. That is, conventionally, the hoisting machine 14 is disposed above the center of the car, but here, the hoisting machine 14 is arranged such that the sheave 14a is positioned between the car 4 and the machine room side wall 30b on a horizontal projection plane. 14 is offset.

The rope ends 13 and 15 are also located at positions off the car 4 and are disposed between the car 4 and the side walls 1a of the hoistway 1 on a horizontal projection plane viewed from directly above. As described above, there are a pair of pulleys 9 provided in the lower part of the car 4, one of which is located near the lower part of the rope end 13, and the other is located near the lower part of the sheave 14 a of the hoist 14. .
Both ends of the pulley 10 provided above the counterweight 6 are located near the lower part of the sheave 14a and the rope end 15 of the hoisting machine 14. By arranging the members related to the rope 11 in this manner, it is easy to wind the rope 11 as described above, and the rope 11 wound between these members moves up and down. The car 4 is smoothly moved without interfering with the car 4.

As can be seen from the above description, the hoistway 1
And a machine room 30 as a continuous space, and a support portion 18 provided at a boundary between the hoistway side wall 1a and the machine room side wall 30a.
Since the support beam member 20 is supported by the a and 18b, and at least the hoisting machine 14 is mounted and supported on the support beam member 20, in particular, the support beam member 20 does not cover the entire floor surface. Since one or a plurality of beams are used, there is a sufficient area on the right side of the support beam member 20 and the hoisting machine 14 to communicate from the hoistway 1 into the machine room 30 as shown in FIG. A space can be secured.

In other words, the horizontal projection plane of the machine room 30 with respect to the horizontal projection plane of the hoistway 1 can be made small to provide an elevator that can be easily manufactured, and this space is used to ride on the car 4. When the car 4 is stopped near the machine room, the maintenance staff can use this space as a maintenance space to perform maintenance and inspection of the hoisting machine 14 and the control panel 21. Normally, the inside of the hoistway 1 and the inside of the machine room 30 communicate with each other through the opening 17.
Can be closed with a removable cover 22 except for a part of the rope 11 or a portion through which the rope 11 passes.

Moreover, the hoisting machine 14 has a sheave 14a.
Is arranged between the car 4 and the machine room side wall 30b on the horizontal projection plane, so that a relatively large space can be easily formed on the anti-sheave side of the hoisting machine 14, and this space is It can be used as the above-mentioned work space or maintenance space.

Also, one end 12 and the other end 1 of the rope 11
6 is fixed to the rope ends 13 and 15 provided below the support beam member 20, and the rope end is not provided in the machine room 30 in which the hoisting machine 14 is installed as in the related art. Even if the machine room 30 is reduced to about the horizontal projection plane of the hoistway 1, sufficient maintenance space for the hoisting machine 14 and the like can be secured. In addition, since the car 4 is ropinged by 2: 1 via the pulley 9, the motor of the hoisting machine 14 can be reduced in size, and the motor of the hoisting machine 14 and the machine room side walls 30a, 30b can be connected to each other. Since the interval can be widened, a sufficient area can be secured as a maintenance space for equipment such as the hoisting machine 14 and the control panel 21.

The hoisting machine 14 may be a hoisting machine with a reduction gear. However, if a gearless hoisting machine in which the motor and the sheave 14a are directly connected is used in order to secure this maintenance space, the hoisting machine 14 may be used. The planar space of the upper machine 14 can be further reduced, and more maintenance space can be secured. As described above, the machine room 30 has the machine room side wall 30.
a is formed so as to protrude slightly on the axial extension of the hoistway side wall 1a or outside thereof, it is possible to arrange the elevator equipment in consideration of the minimum necessary maintenance space, and furthermore, the machine room 30 has the hoistway 1 Almost does not protrude from the horizontal projection plane, so that the degree of freedom of layout in the building where the elevator is installed can be increased.

Although the pulley 9 is provided below the car 5 in the above-described embodiment, the same effect can be obtained by providing the pulley 9 above the car 5. Further, although the rope ends 13 and 15 are fixed to the guide rails 5 and 7, they may be attached to the side wall 1a of the hoistway 1 or a device in the machine room 30, for example, the support beam member 20 or the like. Further, although the control panel 21 is provided in the machine room 30, a part or all of the control panel 21 may be provided at an appropriate position in the hoistway 1.

[0018]

As described above, the elevator of the present invention has a machine room space spatially continuous with the hoistway above the hoistway, and is provided at the boundary between the hoistway side wall and the machine room side wall. Since the supporting beam member was fixed by the support portion and the hoisting machine was mounted and supported on this supporting beam member, even if the machine room was made small, maintenance space was secured and the hoisting machine etc. Maintenance can be easily performed.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of an elevator according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the elevator shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hoistway 1a Hoistway side wall 5 Riding car 6 Counterweight 11 Rope 14 Hoisting machine 15 Hoisting machine 18 Support part 20 Support beam member 30 Machine room 30a Machine room side wall

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshio Matsuzaki 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Japan Inside the Hitachi Building System Co., Ltd. (72) Toshihiko Nara 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Ltd. Hitachi Building Systems Co., Ltd. (72) Inventor Toshihiro Nakagawa 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Ltd. Inside the Hitachi Building Systems Co., Ltd. (72) Inventor Makoto Kunii 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Hitachi, Ltd. Inside the building system (72) Inventor Hideki Nihei 4-6-1 Kanda Surugadai, Chiyoda-ku, Tokyo Inside Hitachi, Ltd. (72) Inventor Hiromi Inaba 7-1-1, Omika-cho, Hitachi City, Hitachi City, Ibaraki Prefecture Hitachi, Ltd. Inside the research institute (72) Inventor Izuya Sato 4-6, Kanda Surugadai, Chiyoda-ku, Tokyo Hitachi, Ltd. (72) Inventor Kosaku Ono 502, Kunitachi-cho, Tsuchiura-shi, Ibaraki F-term in Machinery Research Laboratories, Hitachi, Ltd. F-term (reference) 3F305 BA02 BA11 3F306 AA07 BC04 BC10

Claims (4)

[Claims] 1. An elevator in which a hoist is provided in a machine room formed above a hoistway, and the hoist is used to drive a car provided in the hoistway via a rope. The machine room is formed continuously, and a support portion is provided at a boundary portion between the hoistway side wall of the hoistway and the machine room side wall of the machine room, and a support beam member is supported and fixed by the support portion. An elevator, wherein the hoist is mounted and supported on a support beam member. 2. The elevator according to claim 1, wherein at least one pair of the machine room side walls of the machine room is displaced outside of the hoistway side wall of the hoistway, and the support portion is provided on the displaced portion. An elevator characterized in that: 3. The elevator according to claim 1, wherein the hoist has a sheave around which the rope is wound, and the sheave is arranged so as to be biased toward one of the machine chamber side walls. Elevator. 4. The elevator according to claim 1, wherein said hoisting machine is a gearless hoisting machine.