JP2002241070A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator device with a constitution where a hoist is installed on a top part of a hoistway, capable of being easily installed by reducing an upwardly projecting size of an external upper face of the hoistway from a rooftop of a building. SOLUTION: Supporting beams 19 are installed at the top part of the hoistway in a state that their longitudinal sides are horizontally placed, and they are separated from one another in the horizontal direction. A support 20 is mounted to connect the lower end parts of the supporting beams 19 to one another. The hoist 23 provided with a motor 24, a driving sheave 25 and a braking device 26 is supported by the support 20. The hoist 23 is installed in a state of being settled between the supporting beams 19. As the hoist 3 is installed on the top part of the hoistway, a space from an upper face of the support 20 to an upper face of the hoistway can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus in which a hoist for driving a main rope suspending a car is installed at the top of a hoistway.

[0002]

2. Description of the Related Art FIG. 10 is a perspective view conceptually showing a conventional elevator apparatus similar to the structure disclosed in Japanese Patent No. 3014952, for example. In the figure, 1 is the elevator hoistway, 2 is the roof of the building on which the hoistway 1 is provided, 3 is the upper surface of the hoistway 1 provided above the roof 2, and 4 is separated from each other to the hoistway 1. The upright car rail 5 is a car which is guided up and down by a car rail 4 via guides (not shown) on both sides, and a pulley 6 is pivotally mounted at a lower portion.

[0003] Reference numeral 7 denotes a counterweight rail erected on the hoistway 1 apart from each other, and 8 denotes a guide (not shown) on both sides.
The lifting weight is guided by the balancing weight rail 7 via the lifting weight, and a lifting wheel 9 is pivotally mounted on the upper part. 1
Numeral 0 denotes a supporting beam provided between the upper ends of the counterweight rails 7 in a state of being erected and arranged at the top of the hoistway 1.
Is a hoisting machine installed on the support beam 10,
Is provided.

[0004] 13 is a control panel of an elevator installed on the support beam 10, 14 is a main rope, one end of which is connected to the support beam 10, descends and is wound around the suspension wheel 9 of the counterweight 8 and rises. Then, it is wound around the drive sheave 12 of the hoisting machine 11, descends, is wound around the pulleys 6 on both sides of the car 5, and rises, and the other end is connected to the fixed body at the top of the hoistway 1.

[0005] The conventional elevator apparatus is configured as described above, and the hoisting machine 11 is disposed at the top of the hoistway 1.
Both the car 5 and the counterweight 8 are suspended by the main rope 14 wound around the drive sheave 12. Then, when the hoisting machine 11 is energized and the drive sheave 12 rotates, the above-mentioned two members move up and down in opposite directions. The height of the hoist 11, that is, the dimension A shown in FIG. 10, is generally about 60 cm. Further, a space of about 50 cm of dimension B shown in FIG. 10 is required above the upper surface of the hoisting machine 11 for maintenance work of the elevator.

[0006]

In the conventional elevator apparatus as described above, due to the configuration of the installation structure of the hoisting machine 11, the structure from the upper surface of the support beam 10 to the upper surface 3 in the hoistway 1 is shown in FIG. Is increased, the dimension of the outer upper surface of the hoistway 1 protruding above the rooftop 2 of the building is increased. Therefore, there has been a problem that the construction cost of the building is increased, measures are required to avoid contact with the building restrictions, and measures for sunshine right in the neighborhood are required.

The present invention has been made to solve such a problem, and has a configuration in which a hoist is installed at the top of a hoistway, and the hoistway external upper surface is located above the roof of a building. It is an object of the present invention to obtain an elevator device having a small protrusion dimension of the elevator.

[0008]

In an elevator apparatus according to the present invention, a support beam is installed at the top of a hoistway, and is disposed so as to have a horizontal length and to be separated from each other in a horizontal direction. A support provided by connecting the lower edges of the support beams to each other; and an output shaft of another motor arranged adjacent to the end of the drive sheave, the braking device, and the output shaft in series with the output shaft. And a hoisting machine supported by a support provided with an electric motor having a joint for connecting the motor.

In the elevator apparatus according to the present invention, the drive sheave is fixed to one end of the output shaft of the electric motor, and the braking device is arranged at the other end of the output shaft, and the rotation axis extends along the length of the support beam. An arranged hoist is provided.

Further, in the elevator apparatus according to the present invention, there is provided a motor of a hoist comprising a connected motor constituted by a first motor and a second motor whose output shafts are mutually connected by a joint.

In the elevator apparatus according to the present invention, the output shaft is connected to the first and second motors and the output shaft of the first motor connected to the drive sheave side by a joint. A motor of a hoist comprising a connected motor constituted by the third motor thus provided is provided.

In the elevator apparatus according to the present invention, there is provided a main rope which is constituted by a flexible strip formed in a flat shape of a metal material and wound around a drive sheave.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 6 show an embodiment of the present invention. FIG. 1 is a cross-sectional plan view of an elevator apparatus, FIG. 2 is a vertical sectional side view of FIG.
FIG. 4 is a front view schematically showing an enlarged portion of the hoisting machine in FIG. 1, FIG. 4 is a side view of FIG. 3, FIG. 5 is a longitudinal sectional view schematically showing an enlarged portion D in FIG. FIG. 6 is a side view of FIG. 5. In the figure, 1 is a hoistway of an elevator, and 15 is an upper surface in the hoistway 1.

Reference numeral 4 denotes a car rail which is set up on the hoistway 1 away from each other, 5 denotes a car which is guided up and down by the car rail 4 on both sides via guides (not shown), and 7 denotes a car which is separated from each other. Rails for counterweights erected on hoistway 1, 8
Is a counterweight which is guided by a counterweight rail 7 via guides (not shown) on both sides and moves up and down. Reference numeral 16 denotes a car door which opens and closes the entrance of the car 5.

Reference numeral 17 denotes a landing provided on the hoistway 1, and reference numeral 18 denotes a landing door for opening and closing the entrance of the landing 17. Reference numeral 19 denotes a support beam, which is provided between the upper ends of the car rails 4 in a state of being erected, installed at the top of the hoistway 1 and arranged horizontally in a longitudinal direction, and separated horizontally from each other. .

Reference numeral 20 denotes a support provided by connecting the lower edges of the support beams 19 to each other; 21, a support girder provided between the upper ends of the counterweight rails 7; , The support beams 19 and the longitudinal ends of the support girders 21 are connected to each other. Reference numeral 23 denotes a hoist, which is an electric motor 24 fastened to the upper surface of the support 20 and whose rotation axis is arranged along the length of the support beam 19, a drive sheave 25 fixed to an output shaft of the electric motor 24, and a motor It is constituted by a brake 26 connected to the output shaft. The motor 24 is of a unit type in which a joint for connecting an output shaft of another motor (not shown) adjacent to the output shaft in series with the output shaft is formed, that is, a module type. is there.

Reference numeral 27 denotes a flange joint for connecting the output shaft of the electric motor 24 and the brake 26, a first flange 28 fixed to the output shaft of the electric motor 24, a second flange 29 fixed to the shaft of the brake 26, It is constituted by a joint pin 30 protruding from the two flanges 29 and fitted in the fitting hole of the first flange 28 and a cushion rubber 31 interposed between the fitting hole of the first flange 28 and the fitting pin 30. ing.

Reference numeral 32 denotes a deflection pulley, which is pivotally mounted on the support beam 21 and has a rotation axis parallel to the rotation axis of the hoisting machine 23. 33 is a main rope, one end of which is connected to the car 5 and ascends, is wound around the drive sheave 25 and the deflection pulley 32 of the hoisting machine 23 and is lowered, and the other end is connected to the counterweight 8. . Reference numeral 34 denotes a control device for the elevator, which is connected to the electric motor 24 and the brake 26.

In the elevator apparatus constructed as described above, the hoisting machine 23 is disposed at the top of the hoistway 1, and the car 5 and the counterweight 8 are driven by the main rope 33 wound around the drive sheave 25. Are both suspended. When the hoisting machine 23 is energized and the drive sheave 25 rotates, the above-mentioned two members move up and down in opposite directions. Then, the hoisting machine 2 is attached to a support 20 provided by connecting the lower edges of the support beams 19 to each other.
3 are mounted, and are set in a state of being settled between the support beams 19 arranged in parallel with each other.

That is, in the hoisting machine 23 arranged at the top in the hoistway 1, the height C from the upper surface of the support 20 to the upper surface 3 in the hoistway 1 shown in FIG. A support beam 19 is arranged. In addition, the motor 24 is a unit type in which a joint for connecting an output shaft of another motor (not shown) adjacent to the output shaft is formed. Therefore,
For example, when increasing the capacity of the hoisting machine in the repair work of an existing elevator, the output shaft of a newly prepared unit type motor is connected.

Thus, the required capacity of the hoist can be easily obtained. In other words, even if renovation work is performed,
Since the height dimension C shown in 0 does not change significantly, the construction cost of the building can be reduced, the building restrictions can be avoided, the sunshine right measures in the neighborhood can be eliminated, and the elevator can be easily installed and installed. Costs can be reduced.

Embodiment 2 FIG. FIG. 7 is a view showing an example of another embodiment of the present invention, and is equivalent to FIG. 3 described above.
The elevator apparatus is configured in the same manner as in FIGS. 1 to 6 except for FIG. In the drawings, the same reference numerals as those in FIGS. 1 to 6 denote corresponding parts, and reference numeral 35 denotes a coupling motor which is manufactured according to the same specification and whose output shaft is a flange joint.
The first motor 36 and the second motor 37 are connected to each other by 7. The first motor 36 and the second motor 37 are fastened to the upper surface of the support 20, and the rotation axis is arranged along the length of the support beam 19.
Note that the first electric motor 36 corresponds to the electric motor 24 in the first embodiment, and the second electric motor 37 is a unit-type electric motor having substantially the same outer diameter as the first electric motor 36.

Reference numeral 23 denotes a hoist, which comprises a connecting motor 35, a drive sheave 25 fixed to an output shaft of a first motor 36, and a brake 26 connected to an output shaft of a second motor 37. Note that the brake 26 is designed to have a braking performance corresponding to the output of the coupling motor 35. Reference numeral 38 denotes a control device for an elevator constituted by a microcomputer, which is connected to the coupling motor 35 and the brake 26 to synchronously control the rotation of the first motor 36 and the second motor 37, and controls the rotation of the two motors. And distribute the load evenly.

In the elevator apparatus constructed as described above, the hoisting machine 23, the main cable 33 and the like are arranged similarly to the embodiment of FIGS. 1 to 6 described above, and the car 5 and the counterweight 8 are raised and lowered. Be driven. Also, the hoisting machine 23 is
, And settled between the support beams 19. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 6 can be obtained in the embodiment of FIG.

Further, in the embodiment shown in FIG. 7, since the connecting motor is formed by a plurality of motors such as the first motor 36, the number of motors of the connecting motor can be increased or decreased to easily adapt to different elevator specifications. Can respond. For this reason, since various types of elevator specifications can be handled by one type of motor, the productivity of the motor can be improved and the manufacturing cost can be reduced.

The connection motor 35 is controlled by a control device 38 which controls the rotation of the two motors synchronously and equalizes the load. For this reason, since the load is not concentrated on one motor such as the first motor 36, the specific motor does not rise abnormally or emit noise. For this reason, failures do not concentrate on a specific electric motor, and there is no variation in the life of the electric motor, the operation of the elevator can be stabilized, and the maintenance cost can be reduced.

A brake 26 having a braking performance corresponding to the output of the connection motor 35 is connected to the output shaft of the second motor 37. For this reason, even in a connected motor formed by a plurality of electric motors such as the first electric motor 36, a stable braking action can be obtained, and vibration and impact during braking can be reduced.

Embodiment 3 FIG. 8 is also a diagram showing an example of another embodiment of the present invention, and is a diagram corresponding to FIG. 3 described above.
Except for FIG. 8, the elevator apparatus is configured in the same manner as in FIGS. In the figures, the same reference numerals as those in FIGS. 1 to 6 and 7 denote corresponding parts, and reference numeral 39 denotes a connection motor, which is a first motor manufactured according to the same specification and whose output shaft is connected to each other by a joint 27 composed of a flange joint. 36, a second electric motor 37, and a third electric motor 40 connected to an end of the output shaft of the first electric motor 36 on the side of the drive sheave 25 by a joint 27. The third electric motor 40 is fastened to the upper surface of the support 20 so that the rotation axis is It is arranged along the length of the support beam 19. The third electric motor 40 corresponds to the second electric motor 37 in the second embodiment.

Reference numeral 23 denotes a hoist, which comprises a connecting motor 39, a drive sheave 25 fixed to an output shaft of a first motor 36, and a brake 26 connected to an output shaft of a second motor 37. Note that the brake 26 is designed to have a braking performance corresponding to the output of the coupling motor 39. Reference numeral 41 denotes an elevator control device constituted by a microcomputer, which is connected to the coupling motor 35 and the brake 26 to synchronously control the rotation of the first motor 36, the second motor 37, and the third motor 40, The load is evenly distributed to the three.

In the elevator apparatus constructed as described above, the hoisting machine 23, the main cable 33 and the like are arranged in the same manner as in the embodiment of FIGS. 1 to 6, and the car 5 and the counterweight 8 are raised and lowered. Be driven. Also, the hoisting machine 23 is
, And settled between the support beams 19. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 6 can be obtained in the embodiment of FIG.

In the embodiment shown in FIG. 8, since the connected motor is formed by a plurality of motors such as the first motor 36, the number of motors of the connected motor can be increased or decreased to easily adapt to different elevator specifications. Available. The connection motor 39 is controlled by a control device 41 that synchronously controls the rotation of the three motors and equalizes the load. Further, the brake 26 having a braking performance corresponding to the output of the connection motor 39 is connected to the output shaft of the second motor 37.

Therefore, although detailed description is omitted, FIG.
In this embodiment, the same operation as in the embodiment of FIG. 7 can be obtained. Further, the drive sheave 25 is disposed between the first electric motor 36 and the third electric motor 40. Therefore, the drive sheave 2
5, the space required for installing the hoisting machine 23 on one side in the direction along the rotation axis can be reduced, and the layout of the equipment in the hoistway 1 can be simplified.

Embodiment 4 FIG. FIG. 9 also shows an example of another embodiment of the present invention, and corresponds to FIG. 3 described above.
Except for FIG. 9, the elevator apparatus is configured similarly to the above-described FIGS. In the drawings, the same reference numerals as those in FIGS. 1 to 6 denote corresponding parts, and reference numeral 42 denotes a main rope wound around the drive sheave 25, which is constituted by a flexible strip formed of a metal material into a flat shape. .

In the elevator apparatus constructed as described above, the hoisting machine 23, the main cable 42 and the like are arranged as in the embodiment of FIGS. 1 to 6 described above, and the car 5 and the counterweight 8 are raised and lowered. Be driven. Also, the hoisting machine 23 is
, And settled between the support beams 19. Accordingly, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 6 can be obtained in the embodiment of FIG.

Further, in the embodiment shown in FIG. 9, the main cable 42 made of a flexible strip formed flat by a metal material.
Is wound around the drive sheave 25. Therefore, the drive sheave 2
5, the diameter E shown in FIG. 9 can be reduced, and the height dimension C shown in FIG.
Can be reduced. Therefore, it is possible to reduce the dimension of the outer upper surface of the hoistway 1 projecting above the rooftop 2 of the building shown in FIG. 10 described above.

[0036]

As described above, according to the present invention, there are provided support beams which are installed at the top of the hoistway and are horizontally arranged longitudinally and separated from each other in the horizontal direction. A support provided by connecting the edges to each other, and a joint for connecting an output shaft of another electric motor adjacent to the output shaft in series with an end of the drive sheave, the braking device, and the output shaft. And a hoisting machine supported by a support.

Accordingly, the hoist is mounted on the support provided by connecting the lower edges of the support beams to each other, and is settled between the support beams arranged in parallel with each other. . Therefore, in the configuration in which the hoist is arranged at the top in the hoistway, the support beam is arranged in a part of the gap from the upper surface of the support to the upper surface in the hoistway. As a result, it is possible to reduce the size of the building that protrudes upward from the roof of the building on the outside upper surface of the hoistway, thereby reducing building construction costs, avoiding building restrictions, and eliminating measures to deal with sunshine right in the vicinity. This facilitates the installation of the elevator and reduces the cost of installing the elevator.

As described above, according to the present invention, the drive sheave is fixed to one end of the output shaft of the electric motor, and the braking device is arranged at the other end of the output shaft, so that the rotation axis extends along the length of the support beam. It is provided with an installed hoist.

[0039] With this arrangement, on a support provided by connecting the lower edges of the support beams, a drive sheave is fixed to one end of the output shaft of the motor, and a braking device is connected to the other end of the output shaft. The upper machine is mounted, and is settled between the support beams arranged in parallel with each other. Therefore, in the configuration in which the hoist is arranged at the top in the hoistway, the support beam is arranged in a part of the gap from the upper surface of the support to the upper surface in the hoistway. As a result, it is possible to reduce the size of the building that protrudes upward from the roof of the building on the outside upper surface of the hoistway, thereby reducing building construction costs, avoiding building restrictions, and eliminating measures to deal with sunshine right in the vicinity. This facilitates the installation of the elevator and reduces the cost of installing the elevator.

Further, as described above, the present invention is provided with a motor of a hoist comprising a connected motor constituted by a first motor and a second motor whose output shafts are mutually connected by a joint. .

Thus, the drive sheave is fixed to one end of the output shaft of the connected motor composed of the first motor and the second motor on the support provided by connecting the lower edges of the support beams to each other. A hoist having a braking device connected to the other end is mounted, and is set in a state of being settled between support beams arranged in parallel with each other. Therefore, in the configuration in which the hoist is arranged at the top in the hoistway, the support beam is arranged in a part of the gap from the upper surface of the support to the upper surface in the hoistway. As a result, it is possible to reduce the size of the building that protrudes upward from the roof of the building on the outside upper surface of the hoistway, thereby reducing building construction costs, avoiding building restrictions, and eliminating measures to deal with sunshine right in the vicinity. This facilitates the installation of the elevator and reduces the cost of installing the elevator. In addition, a plurality of electric motors such as the first electric motor form a connected motor, and by increasing or decreasing the number of connected motors, it is possible to easily cope with different elevator specifications. For this reason, since one type of electric motor can cope with various specifications of the elevator, there is an effect that productivity of the electric motor is improved and manufacturing cost is reduced.

Further, as described above, according to the present invention, the output shafts of the first motor and the second motor are connected to each other by the joint, and the output shaft of the first motor is connected to the end of the drive sheave side by the joint. And a motor of a hoist comprising a connected motor constituted by the third motor thus constructed.

Accordingly, the first motor and the third motor on the output shaft of the connected motor including the first motor, the second motor, and the third motor are provided on the support provided by connecting the lower edges of the support beams to each other. The drive sheave is fixed in between, and a hoisting machine with a braking device connected to the other end of the output shaft is mounted, and is settled between support beams arranged in parallel with each other. Therefore, in the configuration in which the hoist is arranged at the top in the hoistway, the support beam is arranged in a part of the gap from the upper surface of the support to the upper surface in the hoistway. This allows
It is possible to reduce the size of the building that protrudes upward from the roof of the building on the outer top surface of the hoistway, thereby reducing building construction costs, avoiding building restrictions, and eliminating sunshine rights measures in the neighborhood. This makes it easier to install the elevator and reduces the cost of installing the elevator. In addition, a plurality of electric motors such as the first electric motor form a connected motor, and by increasing or decreasing the number of motors of the connected motor, it is possible to easily cope with different elevator specifications. For this reason, since one type of electric motor can cope with various specifications of the elevator, there is an effect that productivity of the electric motor is improved and manufacturing cost is reduced. Further, the space required for installing the hoist on one side in the direction along the rotation axis from the drive sheave is reduced, and there is an effect that the layout of the equipment on the hoistway is simplified.

Further, as described above, the present invention is provided with a main rope which is constituted by a flexible strip formed in a flat shape of a metal material and is wound around a driving sheave.

Accordingly, the hoist is mounted on the support provided by connecting the lower edges of the support beams to each other, and the support beams are settled between the support beams arranged in parallel with each other. . Therefore, in the configuration in which the hoist is arranged at the top in the hoistway, the support beam is arranged in a part of the gap from the upper surface of the support to the upper surface in the hoistway. As a result, it is possible to reduce the size of the building on the outer upper surface of the hoistway, which protrudes upward from the roof of the building, thereby reducing building construction costs, avoiding building restrictions, and eliminating measures for sunshine right in the vicinity. This facilitates the installation of the elevator and has the effect of reducing the cost of installing the elevator. Further, a main rope made of a flexible strip formed in a flat shape by a metal material is wound around the drive sheave. Therefore, the diameter of the drive sheave can be reduced, and the gap immediately above the drive sheave can be reduced. Therefore, it is possible to reduce the dimension protruding upward from the roof of the building on the outer upper surface of the hoistway, thereby facilitating the installation of the elevator,
Also, there is an effect of reducing the installation cost of the elevator.

[Brief description of the drawings]

FIG. 1 shows the first embodiment of the present invention, and is a cross-sectional plan view of an elevator device.

FIG. 2 is a longitudinal sectional side view of FIG. 1;

FIG. 3 is an enlarged front view conceptually showing a portion of the hoisting machine shown in FIG. 1;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is an enlarged longitudinal sectional view conceptually showing a portion D in FIG. 3;

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a view showing a second embodiment of the present invention, and is a view corresponding to FIG. 3 described above.

FIG. 8 is a view showing a third embodiment of the present invention, and is a view corresponding to FIG. 3 described above.

FIG. 9 is a view showing a fourth embodiment of the present invention, and is a view corresponding to FIG. 3 described above.

FIG. 10 is a perspective view conceptually showing a conventional elevator device.

[Explanation of symbols]

1 hoistway, 19 support beam, 20 support,
23 hoisting machine, 24 electric motor, 25 drive sheave,
26 braking device, 27 coupling, 35 coupling motor, 36 first motor, 37 second motor,
39 linked motor, 40 third motor, 42
Main rope.

Claims (5)

[Claims] 1. A support beam installed at the top of a hoistway and arranged horizontally in a longitudinal direction and spaced apart from each other in a horizontal direction, and provided by connecting lower edges of these support beams to each other. Provided at the end of the drive sheave, the braking device, and the output shaft, a motor formed with a joint that connects the output shaft of another motor adjacent to the output shaft in series. An elevator apparatus comprising: a hoist supported by the support. 2. A hoist, wherein a drive sheave is fixed to one end of an output shaft of an electric motor, a braking device is arranged at the other end of the output shaft, and a rotation axis is arranged along the length of the support beam. The elevator apparatus according to claim 1, wherein 3. The motor of the hoisting machine according to claim 2, wherein the motor of the hoist comprises a connected motor constituted by a first motor and a second motor whose output shafts are mutually connected by a joint. Elevator equipment. 4. The motor of the hoist is connected by a joint to a first motor and a second motor whose output shafts are connected to each other by a joint, and an end of the output shaft of the first motor on the drive sheave side. 3. The elevator device according to claim 2, wherein the elevator device comprises a connected motor constituted by the third motor. 5. The main rope wound around the drive sheave is made of a flexible strip formed in a flat shape from a metal material. The elevator device according to any one of the above.