JP2001048445A - elevator - Google Patents

Abstract

(57) [Summary] To provide an elevator capable of reducing a machine room space. SOLUTION: Both ends of a rope 11 wound around a hoisting machine 14 arranged in a machine room space 30 are positioned below the hoisting machine 14 of a car guide rail 5 erected in a hoistway 1. The fixed rope end 13 is fixed to the rope end 15 fixed below the hoisting machine 14 of the counterweight guide rail 7 erected in the hoistway 1 to reduce the area of the machine room space 30. .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator for driving a car by a rope.

[0002]

2. Description of the Related Art A conventional elevator for driving a car by a rope is disclosed in Japanese Patent Application Laid-Open No. 8-290883, which will be described with reference to a side view of FIG. 4 and a plan view of FIG.

In the hoistway 1, a car guide rail 5 for guiding the car 4 and a counterweight guide rail 7 for guiding the counterweight 6 are fixed by brackets 2 and 3, respectively. , 7 extend from the bottom to the vicinity of the top of the hoistway 1. A machine room 30 in which a control panel 21 is arranged is formed in an upper part of the hoistway 1, and a cradle 19 installed on a beam 18 is formed in the machine room 30.
The machine beam 20 is supported on the
The hoisting machine 14 is installed on the top of the vehicle. Machine beam 20
Has a rope end beam 20b that supports the ends 12, 15 of the rope 11 on both sides of the portion that supports the hoisting machine 14 as shown in FIG. One end 12 of the rope 11 is fixed to a rope end 13 fixed to a rope end beam 20b, while the other end 15 of the rope 11 is fixed to another rope end 16 fixed to a rope end beam 20b.
It is fixed to.

The one end 12 side of the rope 11 wound around the hoisting machine 14 hangs down the hoistway 1, is wound around a pulley 9 provided at the lower part of the car 4, and then rises to form a machine room 30. The other end 15 side of the rope 11 fixed to the rope end 13 and wound around the hoist 14 hangs down the hoistway 1, and then is wound around a pulley 10 provided above the counterweight 6. And then fixed to the rope end beam 20b in the machine room 30.

[0005]

Recently, in a condominium or other condominium, a common part such as stairs is not included in the calculation of the floor area ratio of the building, and in an elevator, even if a drive device is installed in a hoistway, Deregulation measures such as good have been taken, but conventional elevators have rope end 1
Since the rope end beam 20b is installed to fix the hoisting machine 3 and 16, the machine beam 20 for fixing the hoisting machine 14 becomes large, and the maintenance space for the hoisting machine 14, the control panel 21 and other devices is maintained. In consideration of the above, the horizontal projection area of the machine room 30 is larger than the hoistway. Therefore, hoistway 1
However, since the direction in which the machine room 30 protrudes cannot be freely determined with respect to the direction of the doorway provided in the elevator, the layout of the building in which the elevator is installed is limited.

It is an object of the present invention to provide an elevator capable of reducing a machine room space.

[0007]

In order to achieve the above object, the present invention provides a car and a counterweight which are guided along a guide rail erected on a hoistway, and at least a pulley is provided on the car. An elevator in which a hoisting machine supported by a machine beam is arranged above the hoistway, and a rope wound around the hoisting machine is connected via the pulley so as to raise and lower the car. Are fixed at positions below the machine beam of the hoisting machine.

In the elevator according to the present invention, the both ends of the rope are fixed at positions below the machine beam, so that the rope end at the end of the rope is fixed to the machine room as in the prior art. In addition, the machine room can be reduced to about the horizontal projection plane of the hoistway, and even if the side wall of the machine room space is positioned on the extension of the side wall of the hoistway, the maintenance space of the hoisting machine etc. is sufficient. Can be secured.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 are a side view and a plan view of an elevator according to an embodiment of the present invention.

A machine room space 30 continuous with the hoistway 1 is formed above the hoistway 1.
Numeral 0 denotes a very small space surrounded by a side wall 30a provided at a position protruding substantially upward or slightly outward of the side wall 1a of the hoistway 1, in which the control panel 21 and the hoisting machine 14 are installed. Have been. At the top of the hoistway 1, there is no machine room floor surface as in the prior art, and an opening 17 is formed so that the hoist 14 can be carried in and out.
If necessary, a cover 22 that covers a part of the rope 11 or a part except for a passage part of the rope 11 to be described later can be arranged.

As shown in FIG. 2, in the machine room space 30,
A machine beam 20 having a cradle 19 is bridged between a pair of beams 18 located on the top of the side wall 1a forming the hoistway 1 between the direction of the entrance of the elevator and the back side thereof, and is wound on the machine beam 20. The machine 14 and a control panel 21 located closer to the entrance of the elevator than the hoisting machine 14 are mounted. The pair of beams 18 may be provided on both sides of the entrance of the elevator, or may be provided on all sides and a pair may be selected and used as needed. The hoisting machine 14 has a sheave 14a around which the rope 11 is wound. The sheave 14a is connected to the car 4 so that the sheave 14a does not overlap the car 4 on a horizontal projection plane viewed vertically as shown in FIG. It is located between the side walls 1a of the hoistway 1.

In the hoistway 1, a car guide rail 5 for guiding the car 4 and a counterweight guide rail 7 for guiding the counterweight 6 are fixed by brackets 2 and 3, respectively. The rails 5 and 7 extend from the bottom to the vicinity of the top of the hoistway 1. A rope end 13 is fixed to a portion of one of the car guide rails 5 located above the hoistway 1, and a hoistway 1 of a pair of counterweight guide rails 7.
A rope end 15 is fixed to a portion located above the. A pair of pulleys 9 serving as sheaves are attached to the lower part of the car 4, and a pulley 10 serving as a sheave is attached to the upper part of the counterweight 6. The rope ends 13 and 15 are located at positions off the car 4 as shown in FIG. 2, and are disposed between the car 4 and the side wall 1a of the hoistway 1 on a horizontal projection plane viewed from directly above.

The rope 11 having one end 12 fixed to the rope end 13 is hung down, wound around a pair of pulleys 9, raised, wound around a sheave 14 a of a hoisting machine 14, and then hung again. After being wound around the pulley 10, it is raised and the other end 16 is connected to the rope end 15. An opening 17 is provided at the top of the hoistway 1 so that the hoisting machine 14 can be carried in and out.
A cover 22 that covers all but a part of the cable 7 or a portion through which the rope 11 passes is attached. The control panel 21 of the elevator is arranged on the machine beam 20.

Here, one end 12 and the other end 16 of the rope 11 are fixed to rope ends 13 and 15 provided below the machine beam 20, and a hoisting machine 14 is installed in a conventional manner. Rope end 1 in machine room space 30
Since the machine room space 30 is not fixed to the horizontal projection surface of the hoistway 1, the maintenance space of the hoisting machine 14 and the like can be sufficiently secured because the space is not fixed to the hoistway 1. In addition, basket 4
In this case, the motor of the hoisting machine 14 can be reduced in size by performing 2: 1 roping via the pulley 9,
Since the distance between the motor of the hoisting machine 14 and the side wall 30a of the machine room space 30 can be widened, it is possible to secure a sufficient area as a maintenance space for equipment such as the hoisting machine 14 and the control panel 21. it can.

The hoisting machine 14 may be a hoisting machine with a speed reducer, but in order to secure this maintenance space, a gearless hoisting machine in which a motor and a sheave 14a are directly connected is used. The fourteen planar spaces can be further reduced to provide more maintenance space. Thus, even if the side wall 30a of the machine room space 30 is positioned on the extension of the side wall 1a of the hoistway 1, the elevator equipment can be arranged in consideration of the minimum required maintenance space. Almost does not protrude from the horizontal projection plane of the hoistway 1, so that the degree of freedom of layout in the building where the elevator is installed can be increased.

As can be seen from FIG. 2, the rope ends 13, 15; the sheave 14a of the hoisting machine 14;
0 is located at a position off from directly above the car 4 and is disposed between the car 4 and the side wall 1a of the hoistway 1 on a horizontal projection plane viewed from directly above. For this reason, the rope 11 connecting these parts does not interfere with the car 4 moving up and down, and the movement of the car 4 is performed smoothly.

FIG. 3 is a plan view of an elevator according to another embodiment of the present invention. The same reference numerals are given to the same components as those in the previous embodiment, and the detailed description is omitted.

The rope end 15 shown in FIG. 2 is a member configured so as to bridge between a pair of counterweight guide rails 7, but as shown in FIG. 3, the rope end 15 is connected to one of the counterweight guide rails 7. The rope end 15 is fixed, and the pulley 10 is positioned below the rope end 15 and the sheave 14a. With such a configuration, the same effect as in the above embodiment can be obtained.

In each of the above embodiments, the pulley 9
Is provided at the lower part of the car 4, but the same effect can be obtained when a pulley is attached to the upper part of the car 4. In each embodiment, the rope ends 13 and 15 are fixed to the guide rails 5 and 7. However, if the rope ends 13 and 15 are located below the machine beam 20,
It may be attached to the side wall 1a of the hoistway 1 with an anchor bolt or the like. Further, in each of the embodiments, the control panel 21 is disposed in the machine room space 30. However, the control panel 21 may be partially divided or entirely disposed at an appropriate position in the hoistway 1. If so, more maintenance space for the machine room space 30 can be secured.

[0021]

As described above, in the elevator according to the present invention, since the both ends of the rope are fixed to the rope end supported below the machine beam, the rope end is fixed to the machine room as in the prior art. Therefore, the machine room space can be reduced to about the horizontal projection plane of the hoistway. Therefore, even if the side wall of the machine room space is positioned on the extension of the side wall of the hoistway, the maintenance space of the hoist and the like can be sufficiently ensured.

[Brief description of the drawings]

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

FIG. 2 is an enlarged plan view of the elevator shown in FIG.

FIG. 3 is a plan view of an elevator according to another embodiment of the present invention.

FIG. 4 is a side view of a conventional elevator.

FIG. 5 is a plan view of the elevator shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hoistway 1a Side wall 4 Car basket 5 Car guide rail 6 Counterweight 7 Counterweight guide rail 9,10 Pulley 11 Rope 12,16 end 13,15 Rope end 14 Hoisting machine 14a Sheave 18 Beam 20 Machine beam 30 Machine room space

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshihiro Nakagawa 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Japan Inside the Hitachi Building Systems Co., Ltd. (72) Inventor Toshiyuki Tadokoro 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo, Japan Hitachi Building Systems Co., Ltd. (72) Inventor Makoto Kunii 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo F-term in Hitachi Building Systems Co., Ltd. 3F305 BA02 BC04 3F306 AA07 BC04 BC10

Claims (4)

[Claims] 1. A hoist supported by a car and a counterweight which is guided along a guide rail erected on a hoistway, a pulley is attached to at least the car, and a hoist supported by a machine beam above the hoistway. In an elevator in which the ropes wound around the hoisting machine are connected via the pulleys so as to raise and lower the car, the both ends of the ropes are positioned below the machine beam of the hoisting machine. An elevator fixed in position. 2. The elevator according to claim 1, wherein both ends of the rope are fixed to the guide rail via a support bracket. 3. The apparatus according to claim 1, wherein a machine room space that is continuous with the hoistway is formed above the hoistway,
At least one pair of beams are provided between the side wall of the hoistway and the side wall of the machine room space, and a machine beam is fixed between the beams,
An elevator, wherein the hoist is mounted on the machine beam. 4. The hoist according to claim 3, wherein the sheave of the hoist and the rope ends attached to both ends of the rope are arranged between the side wall of the hoistway and the car on a horizontal projection plane. An elevator characterized in that: