JP2000086126A - Traction elevator - Google Patents

Abstract

(57) [Summary] In a traction elevator having a drive mechanical device in an elevator shaft, a drive mechanical device support structure has a structure suitable for a steel building. An upper end of a counterweight guide and a building beam at an uppermost position of an elevator shaft are connected by a mechanical base frame, and the mechanical base and the horizontal load are fixed to the mechanical base frame to maintain the vertical load of the driving mechanism. And a reinforcing member for supporting the member. [Effect] Since the wall of the elevator shaft is not used as the horizontal load supporting frame of the driving machine, lightweight concrete or the like can be used for the wall of the elevator shaft, and it is advantageous to install the elevator in a steel frame building.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traction sheave elevator, and more particularly, to a car that moves along an elevator guide rail and a counterweight that moves along a guide rail, and a set of a car and a counterweight that are suspended. The present invention relates to an overall arrangement of a drive mechanical device including a hoisting rope and a traction sheave engaged with a hoisting rope driven by a driving machine.

[0002]

2. Description of the Related Art A conventional traction sheave driven elevator basically has a layout in which a machine room is provided at an uppermost portion of an elevator shaft, and a drive mechanical device is disposed therein. However, this basic form considerably restricted the design of the building with regard to the use and appearance of the entire building. Therefore, in recent years, as a solution for increasing the degree of freedom in building design and efficiently and economically using the building space, a traction elevator in which a hoisting machine device including a hoisting motor is installed in an elevator shaft has been proposed. It is being put to practical use. According to JP-A-8-208152 as an example of the present proposal, a machine base is provided at an upper end of a counterweight guide rail between a car and a wall of an elevator shaft,
A drive mechanism is mounted thereon, said drive mechanism further comprising a reinforcing element that absorbs horizontal forces but does not substantially absorb any vertical bearing force on the elevator shaft, by means of a reinforcing element that does not substantially absorb any vertical support forces, or One fixed to the ceiling is disclosed.

[0003]

When the building is made of reinforced concrete and the elevator shaft is made of concrete whose walls or ceiling are also reinforced with reinforcing steel, the horizontal force of the drive mechanism is sufficiently absorbed through the reinforcing elements. Although there is no problem, practical buildings are often made of steel, and the walls or ceiling of the elevator shaft are often made of a material that is separated by lightweight concrete plates in a reinforcing member, and the horizontal force of the drive mechanical device is reduced. It cannot be absorbed. That is, there is a problem that the reinforcing element cannot be directly attached to the wall or ceiling of the elevator shaft.

If the driving mechanism is directly fixed to the machine base and further directly to the wall or ceiling of the elevator shaft via the reinforcing element, the vibration of the driving mechanism is directly transmitted to the building. Therefore, when a bedroom, a sickroom, a music hall, a conference room, or the like for which quietness is required is provided adjacent to the elevator shaft, a complaint about noise often occurs.

[0005]

In the traction sheave elevator according to the first aspect of the present invention, the reinforced concrete beam at the uppermost position of the elevator shaft is utilized by using a reinforced concrete beam or a steel beam beam provided on each floor of the building. Or a structure in which a steel beam and the upper end of the counterweight rail are connected by a mechanical base frame, and a mechanical base that holds the vertical load of the driving mechanical device and a reinforcing element member that supports a horizontal load are provided on the mechanical base frame. By doing so, the horizontal force of the driving mechanical device is supported by building beams on each floor of the building.

In the traction sheave elevator according to a second aspect of the present invention, the counterweight guide rail is extended to the reinforced concrete beam or the steel beam using a reinforced concrete beam or a steel beam provided on each floor of the building. The extension is provided with a mechanical base for maintaining the vertical load of the drive mechanism and a reinforcing element member for supporting the horizontal load, whereby the horizontal force of the drive mechanism is provided on each floor of the building. It is intended to be supported by.

A means for solving the third problem is to reduce the propagation of vibration of the drive mechanical device by fixing the fixed portion of the drive mechanical device via vibration isolating rubber or the like to support the vibration isolator. is there.

According to the present invention, even when the building is made of steel and is partitioned by a lightweight concrete plate having no reinforcing material on the wall or ceiling of the elevator shaft, it is possible to prevent the drive mechanical device from swinging. In addition, by adopting the vibration-proof support structure, the vibration propagation of the driving mechanical device can be reduced.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG.

A car 1 and a counterweight 2 are suspended on a hoisting rope 3 of an elevator. The car 1 is supported by a hoisting rope 3 using a turning pool 4 (on both sides) provided with a rope groove, and a counterweight 2
Are supported by the grooved turning pulley 5. An elevator drive mechanism 6 having a traction sheave 7 engaging the hoisting rope 3 is located at the top of the elevator shaft.

The car 1 and the counterweight 2 run on the elevator shaft along the car guide rails 8a and 8b and the counterweight guide rails 9a and 9b for guiding them. The car guide and the counterweight guide for guiding and supporting the car 1 and the counterweight 2 on the guide rail are not shown. Further, the guide rail is supported on the guide rail support by the wall of the elevator shaft or the building beam, but this is not shown.

The hoisting rope 3 runs as follows. One end of the hoisting rope 3 is fixed to the fixing means 1 above the passage of the counterweight 2 in the uppermost part of the shaft.
It is fixed to 2. The rope 3 from the fixing means 12 descends until it meets a diverting pulley 5 rotatably mounted on the counterweight 2. When the deflecting pulley 5 is wound, the rope 3 rises again to the traction sheave 7 of the drive mechanism device 6, and is wound along the rope groove. The rope 3 descends from the traction sheave 7 to the car 1 and rises through the diverting pulley 4 supporting the car 1 to the fixing means 13 at the top of the guide rail 8a. Here, the other end of the rope 3 is fixed.

A machine base frame 10 is mounted and fixed to the upper ends of the counterweight guide rails 9a and 9b. The machine base frame 10 includes a machine base 10a,
b, 10c and a reinforcing member 10d.
The driving machine 6 and the fixing means 12 at one end of the rope 3 are attached and fixed to the machine base 10a, and the respective vertical loads are maintained. The upper ends of the connecting columns 10b and 10c are located at the uppermost position of the elevator shaft.
Fix to 4. Further, the horizontal load of the driving mechanical device 6 is supported via a supporting member 11 and a reinforcing member 10d connecting the left and right vertical columns 10b and 10c. In addition, support bracket 1
1 is optimally provided at the upper end of the drive mechanical device 6.

In the embodiment shown in FIGS. 1 and 2, the case where the distance between the counter guide rails 9a and 9b is so small that the drive mechanism 6 cannot be accommodated in the counter guide rail is shown. An example in which they are arranged so as to fit between 9b will be described with reference to FIG. In FIG. 3, the counterweight rails 9a and 9b are extended and fixed to the building beam 14 at the uppermost position of the elevator shaft. The machine base 10a is fixed to the counterweight rails 9a and 9b. As a means for fixing the machine base 10a, it is preferable to fix the machine base 10a with a guide rail with a stopper in order to maintain a vertical load. The reinforcing member 10d is fixed to the counterweight rails 9a and 9b, and the support metal 11 is fixed.

The embodiment described with reference to FIGS. 1, 2, and 3 shows an example in which the vertical load and the horizontal load are supported by directly fixing to the machine base 10a and the auxiliary member 11.
A method of reducing the vibration propagation of the drive mechanical device 6 toward the building will be described with reference to FIG. In FIG. 4, reference numeral 17 denotes an anti-vibration rubber having mounting bolts on both sides. It is attached and fixed to the machine base 10a via the rubber cushion 17. 18a is support bracket 1
1 is a plate-like vibration isolating rubber disposed on both sides of the holding plate 18b.
And is attached and fixed to the auxiliary member 11 with fixing bolts 18c. In FIG. 4, the anti-vibration rubber 18a for the support fitting 11 is used. However, the vibration of the driving mechanical device 6 is mainly in the vertical direction, and the anti-vibration rubber 18a may not be used.
In this case, since the support fitting 11 has been subjected to substantially a vertical load in addition to the horizontal load, the support fitting 11 and the reinforcing member 1
It is necessary to consider the intensity of 0d.

2 and 4, reference numeral 15 denotes a side wall of the building, and 16 denotes a ceiling wall.

[0017]

The traction elevator according to the present invention does not use the wall of the elevator shaft as a horizontal load supporting frame of the drive mechanical device even if the drive mechanical device is provided inside the elevator shaft. Lightweight concrete etc. can be used for the wall, and it is advantageous to install an elevator in a steel building.

In the traction elevator according to the present invention, the vibration transmission to the building can be reduced by vibrating and fixing the driving mechanical device, and it is advantageous to install the elevator in a lightweight steel building.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a traction sheave elevator according to one embodiment.

FIG. 2 is a view taken in the direction of arrows XX in FIG. 1;

FIG. 3 is a schematic diagram showing a traction sheave elevator according to another embodiment.

FIG. 4 is a view taken along the line XX of FIG. 1 showing another embodiment of FIG. 2;

[Explanation of reference numerals] 1 ... basket, 2 ... counterweight, 3 ... rope, 4 ...
Car supporting turning pulley, 5 ... Counter weight turning pulley, 6 ... Drive mechanical device, 8a, 8b ... Car guide rail, 9a, 9b ... Counter weight guide rail, 1
0, 10a, 10b, 10d: mechanical base frame, 11: support bracket, 14: building beam, 17: anti-vibration rubber.

Claims (4)

[Claims] A car and a counterweight which move along a car guide rail and a counterweight which moves along a guide rail are suspended.
A traction sheave elevator equipped with a drive mechanism including a traction sheave at the upper end of the counterweight guide rail between a pair of hoisting ropes and a cage and a wall of an elevator shaft, wherein the driving mechanism includes a traction sheave engaging the hoisting rope. A machine base frame was provided so as to continue the upper end and the uppermost beam of the elevator shaft, and the machine base frame was provided with a machine base for maintaining the vertical load of the driving mechanism and a reinforcing member for supporting a horizontal load. A traction sheave elevator characterized in that: 2. A car which moves along a car guide rail and a counterweight which moves along a guide rail, a car and a counterweight which are suspended.
A traction sheave elevator equipped with a drive mechanism including a traction sheave at the upper end of a counterweight guide rail that engages a hoisting rope between a set of hoisting ropes and a wall of an elevator shaft. A traction sheave elevator, comprising: an extension extending up to a top beam of an elevator shaft; and a machine base for maintaining a vertical load of the driving mechanism and a reinforcing member for supporting a horizontal load are provided on the extension. 3. A traction sheave elevator according to claim 1, wherein said driving mechanical device is supported by a vibration-proof structure. 4. A traction sheave elevator according to claim 1, wherein said drive mechanical device is supported by a vertical vibration isolating structure.