JP2004002045A - Elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To restrain to the utmost the occurrence of space that is not utilized in a hoistway. <P>SOLUTION: In an elevator device which has no machinery room, a hoisting machine 4 of a thin type is arranged between a car 1 and a hoistway wall on the projection plane of the hoistway cross section, a return sheave 5a over which a part of a rope from a sheave 4a of the hoisting machine 4 to the car 1 is wrapped is provided, and a return sheave 5b over which a part of a rope from the sheave 4a to a counter weight 2 is wrapped is provided. The return sheave 5b is inclined to the hoistway wall in its rotation surface in the hoistway cross section. <P>COPYRIGHT: (C)2004,JPO

Description

The present invention relates to an elevator apparatus having, in a hoistway, a car and a counterweight, a rope for suspending the both, a hoist for driving the rope, and a return wheel for changing the suspension direction of the rope. is there.

FIG. 12 and FIG. 13 are a plan view and a side view showing the conventional elevator apparatus shown in FIG. 2 and FIG. 1, for example, in JP-A-9-165172.
In the figure, 1 is a car on which a person or a load is placed, 2 is a counterweight for compensating the weight of the car 1, 3 is a rope that suspends the car 1 and the counterweight 2, and 4 is a car and a counterweight via the rope 3. 2 is a thin hoist that drives and moves up and down, 4a is a sheave of the hoist, 5a and 5b are return wheels that change the suspension direction of the rope 3, 6 is a guide rail for a car, and 7 is a guide for a counterweight. Reference numeral 8 denotes a hoistway, 11 denotes a hoisting wheel of the car 1, 12 denotes a hoisting wheel of the counterweight 2, 13 denotes a car-side cleat, and 14 denotes a counterweight-side cleat.

Next, a conventional elevator apparatus will be described with reference to FIGS.
The elevator car 1 and the counterweight 2 move up and down via the rope 3 suspended on the sheave 4a of the hoisting machine 4. At this time, the car guide rail 6 regulates the horizontal movement of the car 1, and the counterweight guide rail 7 regulates the horizontal movement of the counterweight 2, so that other equipment in the hoistway and the hoistway Contact and interference between the wall, the car 1 and the counterweight 2 are prevented. Here, the vertical projections of the car 1, the counterweight 2, and the hoisting machine 4 are separated from each other, and the hoisting machine 4 is placed parallel to one adjacent wall surface.

エ レ ベ ー タ ー In recent years, various types of elevator systems have been proposed in which a hoist is incorporated in a hoistway without providing a machine room in order to minimize the space occupied by the elevator. Specifically, (1) a method in which a thin-type hoist is arranged above the upper limit of the lift of the counterweight, and (2) the hoist is moved from the top of the hoistway, that is, from the ceiling of the car at the time of stopping the top floor of the car. (3) A method in which the hoist is arranged below the pit portion in the hoistway, that is, the car floor when the lowest floor of the car is stopped.

Of these, (1) and (2) require a higher hoistway height than the minimum required for elevating and lowering the elevator, and also perform maintenance and inspection of the hoist by riding on a car near the top of the hoistway. The disadvantage is that it is necessary to take protective measures to prevent persons from hitting the ceiling of the hoistway due to unexpected rise of the car. In the case of (2), the heat generated by the hoist stays at the top of the hoistway, that is, in the vicinity of the hoist itself, so that the hoist tends to break down due to a rise in temperature. (3) has a drawback that a protective means is required to dispose the hoisting machine in the pit portion where the flooding is most likely. The elevator apparatus disclosed in Japanese Patent Application Laid-Open No. Hei 9-165172 eliminates the disadvantage of (1), but creates an unused space over the entire height of the hoistway above and below the vertical projection plane of the hoist. Disadvantages.

As described above, the conventional elevator apparatus has a problem that an unused space is created over the entire height of the hoistway above and below the vertical projection plane of the hoist.

The present invention has been made in order to solve the above problems, and minimizes the generation of an unused space in a hoistway, suppresses a failure due to a rise in the temperature of a hoist, and prevents flooding to a hoistway. The purpose of the present invention is to eliminate damage to the hoist and eliminate the need for protective measures against unexpected rise of the car during inspection.

In order to achieve this object, in the elevator apparatus of the present invention, a car that moves up and down the hoistway, a counterweight that moves up and down in the opposite direction to the car, and a car guide rail that regulates horizontal movement of the car And a counterweight guide rail that regulates the horizontal movement of the counterweight, a rope that suspends the car and the counterweight, a sheave that is disposed in the hoistway, and around which the rope is wound, A hoist that has a motor unit that drives the sheave and that raises and lowers the car and the counterweight via the rope by rotating the sheave, and a hoist that is disposed in the hoistway, and the rope is An elevator apparatus having a first return sheave wound around the rope to change the direction of the rope, wherein the hoisting machine rotates the rope of the sheave. The external dimension in the axial direction is smaller than the external dimension in the direction perpendicular to the rotation axis, and the counterweight and the cage are arranged apart from each other in a plane cross section of the hoistway, and the lowest floor stop of the hoistway is stopped. The first return wheel is located above the floor of the car at the time and below the ceiling of the car when the top floor is stopped, and overlaps at least a part of the hoist in a plane cross section of the hoistway.

Further, in the elevator device of the present invention, the elevator car in the hoistway, the counterweight for lifting the elevator in the opposite direction, the car guide rail for regulating the horizontal movement of the car, and the counterweight A guide rail for a counterweight that regulates horizontal movement, a rope that suspends the basket and the counterweight, a sheave that is disposed in the hoistway, and around which the rope is wound, and that drives the sheave. A hoisting machine having a motor unit, which raises and lowers the car and the counterweight via the rope by rotating the sheave, and a hoist that is disposed in the hoistway, around which the rope is wound, In the elevator apparatus having a first return wheel that changes the direction of the hoist, the hoist has an outer dimension in the rotation axis direction of the sheave. The counter weight and the car are smaller than an outer dimension in a direction perpendicular to the rotation axis, and are spaced apart from each other in a plane cross section of the hoistway, and are lower than a car floor surface when the lowest floor of the hoistway stops. Located above and below the car ceiling when the top floor stops, the rotating surface of the first return wheel is inclined with respect to the wall surface of the adjacent hoistway.

Further, at least one of the hoist and the first return wheel is fixed to a beam supported by the car guide rail or the counterweight guide rail.

Furthermore, the lower end of the hoist is arranged above the car floor when the lowest floor of the hoistway is stopped.

Furthermore, the lower end of the hoist is arranged above the floor of the first floor.

Furthermore, the lower end of the hoist is arranged above the reference floor.

Furthermore, the lower end of the hoist is arranged above the floor of the top floor.

Further, at least a part of the hoist protrudes from the rear surface of the guide rail to the car side in a plane section of the hoistway.

Further, a control panel for controlling the drive of the hoisting machine is arranged at substantially the same height as the hoisting machine, or directly above or immediately below the hoisting machine.

Furthermore, there is provided a control panel for controlling the drive of the hoist, and the lower end of the control panel is arranged above the car floor when the lowest floor of the hoistway is stopped.

Furthermore, there is provided a control panel for controlling the drive of the hoist, and the lower end of the control panel is disposed above the first floor of the hoistway.

Furthermore, the first return wheel is arranged to be inclined with respect to the wall surface of the adjacent hoistway.

Furthermore, the first return wheel has a variable inclination angle with respect to the wall surface of the hoistway.

Further, a second return wheel is disposed in the hoistway, and the rope is wound around to change the direction of the rope, and the second return wheel includes the second return wheel in a plane cross section of the hoistway. The distance between the first return wheel and the second return wheel was variably mounted.

Since the elevator device according to the present invention is configured as described above, the following effects can be obtained.
In the elevator apparatus according to the present invention, the area occupied by the hoist on the projection plane of the plane section of the hoistway is small, and the unused space over the entire height of the hoistway is reduced.

Further, since the angle at which the rope enters the rope groove of the sheave of the hoist is small, damage to the rope can be prevented.
In addition, since at least one of the hoist and the return wheel is fixed to the beam supported by the car guide rail or the counterweight guide rail, the upward acting on the hoist due to the tension of the rope. The force and the downward force acting on the return wheel cancel each other inside the guide rail, reducing the force applied to the building.

Furthermore, since the lower end of the hoist is arranged above the car floor when the lowest floor of the hoistway is stopped, the hoist is not damaged even if the pit is flooded.
Further, since the lower end of the hoist is disposed above the floor of the first floor, the hoist is not damaged even if the underground floor is flooded.

Furthermore, since the lower end of the hoist is arranged above the reference floor, the inspection suitable for the operation of the elevator is easy.
Further, since the lower end of the hoist is disposed above the top floor, the position adjustment between the return wheel and the hoist is easy, which is convenient for inspection.

Further, since the hoist is attached to the lower side of the beam supporting the first return wheel, the force acting on the guide rail can be reduced. In addition, the position adjustment between the return wheel and the hoist is easy, which is convenient for inspection.
Further, since the beam has a vibration-proof structure, the vibration between the hoist and the return wheel can be effectively insulated.

Further, since the hoist and the return wheel are at least partially overlapped on the plane of projection of the hoistway, the hoistway space can be reduced.
Furthermore, at least a part of the hoisting machine protrudes from the rear surface of the guide rail toward the car in the plane section of the hoistway, so that the hoistway space can be reduced.

Further, since a control panel for controlling the drive of the hoist is disposed at almost the same height as the hoist or directly above or immediately below the hoist, inspection of the hoist and the control panel is performed. Is easy.
Further, since the lower end of the control panel is arranged above the car floor when the lowest floor of the hoistway is stopped, the control panel is not damaged even if the pit is flooded.

Further, since the lower end of the control panel is disposed above the first floor of the hoistway, the control panel is not damaged even if the underground floor is flooded.
Further, since one of the first return wheels is used as a driving device, it is possible to cope with a large-capacity elevator device.

Further, since the inclination angle of the first return wheel with respect to the hoistway wall surface is variable, or the arrangement distance of the return wheels between the hoistways in the plane cross section is variable, so that the car The same design can be used for different sizes.

Next, examples of the present invention will be described as follows.
Embodiment 1 FIG.
First Embodiment A first embodiment of the present invention relating to an elevator apparatus will be described with reference to FIGS.
FIG. 1 is a bird's-eye view of Embodiment 1 of the elevator apparatus of the present invention, and FIG. 2 is a plan view. This is an example in which the counterweight is located behind the car when viewed from the entrance of the elevator, and the hoist is arranged beside the car. In the figure, 1 is a car on which a person or a load is placed, 2 is a counterweight for compensating the weight of the car 1, 3 is a rope that suspends the car 1 and the counterweight 2, and 4 is a car and a counterweight via the rope 3. 2 is a thin hoist that drives and raises and lowers, 4a is a sheave of the hoisting machine 4, 4b is a motor of the hoisting machine 4, 5a and 5b are return wheels that change the suspension direction of the rope 3, and 6 is a car. 7 is a guide rail for a counterweight, 8 is a hoistway, 8a is a top of the hoistway 8, 8b is a pit portion of the hoistway 8, 9 is a beam supporting the hoisting machine 4, and 10 is a return wheel 5. , 11 is a hanging wheel of the car 1, 12 is a hanging wheel of the counterweight 2, 13 is a car-side cleat, 14 is a counterweight-side cleat, and 15 is a control panel. The dashed line A in FIG. 1 indicates the height of the car ceiling when the top floor of the car is stopped. That is, above this line is the top. The dashed line B in FIG. 1 indicates the height of the car floor when the lowest floor of the car is stopped. That is, the pit portion is below the line.

In the drawing, the lower end of the hoisting machine 4 is above the dashed line B. That is, the hoisting machine 4 is arranged below the ceiling of the car when the top floor of the car is stopped, and the lower end is above the floor of the car when the bottom floor of the car is stopped. In addition, the hoisting machine 4 is arranged parallel to one adjacent wall.

Further, the return wheel 5a is arranged so as to partially overlap with the hoisting machine 4 on the plane of projection of the hoistway 8 in a plane section, and the return wheel 5b is arranged to be inclined with respect to the wall surface.
Further, the hoisting machine 4 is fixed to the lower side of the beam 9 supported by the car guide rail 6 and the counterweight guide rail 7. The sheave 4 a of the hoisting machine 4 is located closer to the car than the rear surface of the car guide rail 6 in the plane section of the hoistway 8. Here, the back surface of the guide rail refers to the portion in FIG. 3C. In this example, the hoisting machine 4 is directly fixed to the beam 9, but it may be mounted via an elastic body to provide a vibration-proof structure. In addition, the beam 9, the car guide rail 6, and the counterweight guide rail 7 can be attached via an elastic body.

返 し The return wheels 5a and 5b are fixed to the beam 10 supported by the car guide rail 6 and the counterweight guide rail 7. In this example, the return wheels 5a and 5b are directly fixed to the beam 10, but they may be attached to each other via an elastic body to form a vibration-proof structure. In addition, the beam 10, the car guide rail 6, and the counterweight guide rail 7 can be attached via an elastic body.

Further, the control panel 15 is disposed at substantially the same height as the hoisting machine 4 with its lower end above the floor of the car when the lowest floor of the car is stopped.
The rope 3 suspended on the sheave 4a of the hoisting machine 4 driven by the control panel 15 is turned by the return wheels 5a and 5b, and the car 1 and the car 1 are moved through the car suspension wheel 11 and the counterweight suspension wheel 12. Raise and lower the counterweight 2. At this time, the car guide rail 6 and the counterweight guide rail 7 regulate the horizontal movement of the car 1 and the counterweight 2.

The return wheel 5a is arranged so as to partially overlap the hoisting machine 4 on the plane of projection of the hoistway 8 and the sheave 4a of the hoisting machine 4 Since it is located closer to the car than the rear surface, the area occupied by the hoisting machine 4 on the plane of projection of the hoistway 8 is small, and the unused space over the entire height of the hoistway is reduced. Further, the wrapping angle of the rope wound around the sheave 4a of the hoist can be made larger than 180 °, so that the traction capability can be increased. In addition, since the hoisting machine 4 is located below the car ceiling when the car is stopped at the top floor of the car, there is a fear that the inspection worker riding on the car may hit his head on the ceiling of the hoistway due to unexpected rise of the car. No protection required. Further, since the heat generated by the hoist goes to the upper portion near the ceiling of the hoistway, the hoist does not break down due to a rise in temperature. Further, since the return wheel 5b is inclined with respect to the wall surface of the hoistway 8, the angle of entry of the rope 3 into the rope groove of the sheave 4a is reduced, and damage to the rope is prevented.

Also, the hoisting machine 4 is mounted below the beam 9 and the return wheels 5a, 5b are mounted on the beam 10, so that the car 9 and the counterweight guide rail 7 are connected via the beam 9. The upward force due to the tension of the acting rope 3 and the downward force due to the tension of the rope 3 acting on the car guide rail 6 and the counterweight guide rail 7 via the beam 10 cancel each other out inside the guide rail, It reduces the force on the building.

Further, since the lower end of the hoisting machine 4 and the lower end of the control panel 15 are located above the car floor and below the car ceiling when the lowest floor of the car is stopped, even if the pit is flooded, it is not damaged. There is no.
In this type of elevator apparatus without a machine room, the pit depth is about 1.2 m to 1.5 m, and if a hoisting machine and a control panel are arranged at this position, an operator will not be able to use the pit floor. It is within the reach of the user when standing, for example, in the range of 1.2m to 1.7m height (the car floor when the lowest floor of the car is stopped to 1.7m height from the pit floor), and inspection work is performed. Is easy.

When the lower end of the hoisting machine 4 and the lower end of the control panel 15 are located above the car floor and below the car ceiling when the car is stopped on the first floor, not only the pits but also the entire basement floor is flooded. Also, the hoist 4 and the control panel 15 are not damaged.
In addition, when the lower end of the hoisting machine 4 is located above the car floor when the car standard floor is stopped and below the car ceiling, and the control panel 15 is arranged at approximately the same height, inspection according to elevator operation management is performed. Easiest to do.

When the lower end of the hoisting machine 4 is located above the car floor when the top floor is stopped and below the car ceiling, the height of the hoisting machine 4 and the return wheels 5a and 5b are close to each other. It is convenient to check both.
Further, it is possible to reduce the material and reduce the space by integrating the beams that support both.

Embodiment 2. FIG.
Second Embodiment A second embodiment of the present invention relating to an elevator apparatus will be described with reference to FIGS.
FIG. 4 is an overhead view of Embodiment 2 of the elevator apparatus of the present invention, and FIG. 5 is a plan view. This is an example in which the counterweight is located behind the car when viewed from the entrance of the elevator, and the hoist is arranged on the side of the lift space of the counterweight. In the drawings, the same reference numerals as those in the above-described drawings denote corresponding parts, and a description thereof will be omitted.

In the figure, the lower end of the hoisting machine 4 is above the dashed line B. That is, the hoisting machine 4 is arranged below the ceiling of the car when the top floor of the car is stopped, and the lower end is above the floor of the car when the bottom floor of the car is stopped. In addition, the hoisting machine 4 is arranged parallel to one adjacent wall.
Further, the return wheels 5a and 5b are arranged so as to partially overlap with the hoisting machine 4 on the projection plane of the plane section of the hoistway 8. Further, since the return wheel 5b is inclined with respect to the wall surface of the hoistway 8, the angle of entry of the rope 3 into the rope groove of the sheave 4a is reduced, and damage to the rope is prevented.

Further, the hoisting machine 4 is fixed to the beam 9 supported by the car guide rail 6 and the counterweight guide rail 7 from below. In this example, the hoisting machine 4 is directly fixed to the beam 9, but it may be mounted via an elastic body to provide a vibration-proof structure. In addition, the beam 9, the car guide rail 6, and the counterweight guide rail 7 can be attached via an elastic body.

The return wheel 5 is fixed to a beam 10 supported by a car guide rail 6 and a counterweight guide rail 7. In this example, the return wheel 5 is directly fixed to the beam 10, but it may be mounted via an elastic body to provide a vibration-proof structure. In addition, the beam 10, the car guide rail 6, and the counterweight guide rail 7 can be attached via an elastic body.
Further, the control panel 15 is disposed immediately above or immediately below the hoisting machine 4 in the plane section of the hoistway 8, where the projection plane overlaps the hoisting machine 4.

The rope 3 suspended on the sheave 4a of the hoisting machine 4 driven by the control panel 15 is turned by the return wheel 5, and the car 1 and the counterweight are passed through the car suspension wheel 11 and the counterweight suspension wheel 12. 2 is raised and lowered. At this time, the car guide rail 6 and the counterweight guide rail 7 regulate the horizontal movement of the car 1 and the counterweight 2.

The return wheel 5a is disposed so as to partially overlap the hoisting machine 4 on the plane of projection of the hoistway 8 and the control panel 15 is located immediately above the hoisting machine 8 where the projection surface overlaps the hoisting machine 4 in the plane of cross section. Or, since it is disposed immediately below, the area occupied by the hoisting machine 4 on the plane of projection of the hoistway 8 is small, and the unused space over the entire height of the hoistway is reduced. In addition, since the hoisting machine 4 is located below the car ceiling at the time of stopping the top floor of the car, there is a fear that the inspection worker riding on the car may hit his head on the ceiling of the hoistway due to unexpected rise of the car. No protection required. Further, since the heat generated by the hoist goes to the upper portion near the ceiling of the hoistway, the hoist does not break down due to the heat.

Also, the hoisting machine 4 is mounted below the beam 9 and the return wheels 5a, 5b are mounted on the beam 10, so that the car 9 and the counterweight guide rail 7 are connected via the beam 9. The upward force due to the tension of the acting rope 3 and the downward force due to the tension of the rope 3 acting on the car guide rail 6 and the counterweight guide rail 7 via the beam 10 cancel each other out inside the guide rail, It reduces the force on the building.

Further, the lower end of the hoisting machine 4 is located above the car floor when the lowest floor of the car is stopped and below the car ceiling. Since the pit is submerged immediately above, the hoist 4 and the control panel 15 are not damaged.
In this type of elevator apparatus without a machine room, the pit depth is about 1.2 m to 1.5 m, and when the hoist is arranged at this position, the worker stands on the pit floor. Sometimes it is within reach, for example, in the range of 1.2m to 1.7m height (the car floor when the lowest floor of the car is stopped-1.7m height from the pit floor), making inspection work easy. is there.

In addition, the lower end of the hoisting machine 4 is located above the car floor when the car is stopped on the first floor and below the car ceiling, and the control panel 15 is placed in the immediate vicinity where the projection surface overlaps with the hoisting machine 4 in the plane section of the hoistway 8. In this case, the hoist 4 and the control panel 15 are not damaged even if the entire basement floor is flooded, not only the pit.

Further, the lower end of the hoisting machine 4 is located above the car floor surface and below the car ceiling surface at the time of stopping the car reference floor, and the control panel 15 is located in the immediate vicinity where the projection surface overlaps with the hoisting machine 4 in the plane section of the hoistway 8. If it is placed directly above or directly below, it is easiest to perform inspections in accordance with elevator operation management.
When the lower end of the hoisting machine 4 is located above the car floor when the top floor is stopped and below the car ceiling, the heights of the hoisting machine 4 and the return wheel 5 are close to each other. It is convenient for checking.
Further, it is possible to reduce the material and reduce the space by integrating the beams that support both.

Embodiment 3 FIG.
Third Embodiment A third embodiment of the present invention relating to an elevator apparatus will be described with reference to FIGS. 6 to 7 and FIG.
FIG. 6 is an overhead view of Embodiment 3 of the elevator apparatus of the present invention, and FIG. 7 is a plan view. This is because the counterweight is on the side of the car when viewed from the elevator entrance, and the hoist is on the side of the car on the same side as the counterweight, and the counterweight does not overlap with the counterweight on the plane section of the hoistway This is an example of such an arrangement. In the drawings, the same reference numerals as those in the above-described drawings denote corresponding parts, and a description thereof will be omitted.

In the figure, the lower end of the hoisting machine 4 is above the dashed line B. That is, the hoisting machine 4 is arranged below the ceiling of the car when the top floor of the car is stopped, and the lower end is above the floor of the car when the bottom floor of the car is stopped. In addition, the hoisting machine 4 is arranged parallel to one adjacent wall.
Further, the return wheel 5a is disposed so as to partially overlap the hoisting machine 4 on the projection plane of the plane section of the hoistway 8. Further, since the return wheels 5a and 5b are inclined with respect to the wall surface of the hoistway 8, the angle of entry of the rope 3 into the rope groove of the sheave 4a is reduced, and damage to the rope is prevented.

Further, the hoisting machine 4 is fixed to the beam 9 supported by the car guide rail 6 and the counterweight guide rail 7 from below. The motor 4b of the hoisting machine 4 is located closer to the car than the rear surface of the car guide rail 6 in the plane section of the hoistway 8. Here, the back surface of the guide rail refers to a portion C in FIG. In this example, the hoisting machine 4 is directly fixed to the beam 9, but it may be mounted via an elastic body to provide a vibration-proof structure. In addition, the beam 9, the car guide rail 6, and the counterweight guide rail 7 can be attached via an elastic body.

The return wheel 5 is fixed to a beam 10 supported by a car guide rail 6 and a counterweight guide rail 7. In this example, the return wheel 5 is directly fixed to the beam 10, but it may be mounted via an elastic body to provide a vibration-proof structure. In addition, the beam 10, the car guide rail 6, and the counterweight guide rail 7 can be attached via an elastic body.
The rope 3 suspended on the sheave 4a of the hoisting machine 4 driven by the control panel 15 is turned by the return wheel 5, and the car 1 and the counterweight are passed through the car suspension wheel 11 and the counterweight suspension wheel 12. 2 is raised and lowered. At this time, the car guide rail 6 and the counterweight guide rail 7 regulate the horizontal movement of the car 1 and the counterweight 2.

The return wheel 5a is arranged so as to partially overlap the hoisting machine 4 on the plane of projection of the hoistway 8 and the motor 4b of the hoisting machine 4 Since it is located closer to the car than the back, the area occupied by the hoisting machine 4 on the plane of projection of the hoistway 8 is small, and the unused space over the entire height of the hoistway is reduced. In addition, since the hoisting machine 4 is located below the car ceiling when the car is stopped at the top floor of the car, there is a fear that the inspection worker riding on the car may hit his head on the ceiling of the hoistway due to unexpected rise of the car. There is no. Further, since the heat generated by the hoist goes to the upper portion near the ceiling of the hoistway, the hoist does not break down due to the heat.

Also, the hoisting machine 4 is mounted below the beam 9 and the return wheels 5a, 5b are mounted on the beam 10, so that the car 9 and the counterweight guide rail 7 are connected via the beam 9. The upward force due to the tension of the acting rope 3 and the downward force due to the tension of the rope 3 acting on the car guide rail 6 and the counterweight guide rail 7 via the beam 10 cancel each other out inside the guide rail, It reduces the force on the building.

Furthermore, since the lower end of the hoisting machine 4 and the lower end of the control panel 15 are above the car floor and below the car ceiling when the lowest floor of the car is stopped, even if the pit is flooded, the hoisting machine 4 and the control The board 15 is not damaged.
In this type of elevator apparatus without a machine room, the pit depth is 1.2 m to 1.. If the hoisting machine and the control panel are arranged at this position, a range where the worker can reach when standing on the pit floor, for example, a range of 1.2 m to 1.7 m in height (car height). It is at a height of 1.7 m from the car floor surface to the pit floor when the lower floor stops), and inspection work is easy.

When the lower end of the hoisting machine 4 is above the car floor when the first floor of the car is stopped and the upper end is below the car ceiling, and the control panel 15 is arranged at substantially the same height, not only the pits but also Even if the entire basement floor is flooded, the hoist 4 and the control panel 15 are not damaged.
In addition, when the control panel 15 is arranged at substantially the same height with the lower end of the hoisting machine 4 being higher than the car floor when the car standard floor is stopped and the upper end being lower than the car ceiling, the operation of the elevator is controlled. Inspection is the easiest to do.

When the lower end of the hoisting machine 4 is above the car floor when the uppermost floor is stopped and the upper end is below the car ceiling, the hoisting machine 4 and the return wheel 5 are close to each other. Is easy to adjust and convenient for inspection.

Embodiment 4. FIG.
Fourth Embodiment A fourth embodiment of the present invention relating to an elevator apparatus will be described with reference to FIGS.
FIG. 8 is an overhead view of Embodiment 4 of the elevator apparatus of the present invention, FIG. 2 is a plan view, and FIGS. 9 and 10 show main parts. This is due to the beam supporting the car when the counterweight is behind the car when viewed from the elevator entrance and the hoist is returned to the side of the car and just below the height of the car ceiling when the top floor stops. This is an example of the arrangement on the lower side. The same reference numerals as those in the above-described drawings denote corresponding parts, and a description thereof will be omitted.

In the figure, reference numeral 16 denotes an elastic body that absorbs the vibration of the beam 10. Here, the inclination angle of the return wheel 5 with respect to the hoistway wall is variable, and the interval between the two return wheels 5 is also variable. This variable structure can be realized if, for example, the beam 10 and the frame of the return wheel 5 are bolted and the fastening holes are elongated. However, the variable structure is not limited to this. This variable structure can be applied to the first to third embodiments.

Since the hoisting machine 4 is mounted below the beam 10 supporting the return wheel 5, a force acting upward on the sheave 4 a of the hoisting machine 4 due to the tension of the rope 3 and a downward direction on the return wheel 5. The force acting on the guide rail is reduced by the force acting on the guide rail because the force acting on the beam 10 is canceled out as an internal force.
Further, since the hoisting machine 4 and the return wheel 5 are mounted on the same beam 10, mutual position adjustment is easy.

Also, since the hoisting machine 4 and the return wheel 5 are mounted on the same beam 10, and the beam 10 is mounted on the guide rail 6 of the car and the guide rail 7 of the counterweight via the elastic body 16. Thus, the vibration between the hoisting machine 4 and the return wheel 5 can be effectively insulated.
Furthermore, the inclination angle of the return wheel 5 with respect to the hoistway wall is variable, and the interval between the two return wheels 5 is also variable. Even if the positional relationship with the car 13 in the plane of the hoistway changes, the same design can be used.

Embodiment 5.
One embodiment of the present invention relating to an elevator apparatus will be described with reference to FIG.
FIG. 11 shows a fifth embodiment of the elevator apparatus of the present invention. In the drawings, the same reference numerals as those in the above-described drawings denote corresponding parts, and a description thereof will be omitted. In the figure, reference numeral 17 denotes a drive unit in which one of the two return wheels 5 is replaced. This replacement is applicable in the first to fourth embodiments.

一方 By replacing one of the two return wheels 5a, 5b with the drive device 17 and driving it synchronously with the hoist 4, the drive capability can be improved, and it is possible to cope with a large-capacity elevator device.

FIG. 1 is an overhead view of an elevator apparatus according to a first embodiment of the present invention. FIG. 2 is a plan view of the elevator apparatus according to the first and fourth embodiments of the present invention. FIG. 3 is an explanatory view of the “back” of the guide rail used in the first to fifth embodiments of the present invention. FIG. 4 is an overhead view of the elevator apparatus according to the second embodiment of the present invention. FIG. 5 is a plan view of an elevator apparatus according to Embodiment 2 of the present invention. FIG. 6 is an overhead view of the elevator apparatus according to the third embodiment of the present invention. FIG. 7 is a plan view of an elevator apparatus according to Embodiment 3 of the present invention. FIG. 8 is an overhead view of an elevator apparatus according to Embodiment 4 of the present invention. FIG. 9 is a diagram of a main part of an elevator apparatus according to a fourth embodiment of the present invention. FIG. 10 is a view of a main part of an elevator apparatus according to Embodiment 4 of the present invention. FIG. 11 is an overhead view of an elevator apparatus according to Embodiment 5 of the present invention. FIG. 12 is a plan view of a conventional elevator apparatus disclosed in Japanese Patent Application Laid-Open No. 9-165172. FIG. 13 is a side view of a conventional elevator apparatus disclosed in Japanese Patent Application Laid-Open No. 9-165172.

Explanation of reference numerals

{1} car, 2} counter weight, 3} rope, 4> hoisting machine, 4a> sheave, 4b> motor, 5a> return car, 5b> return car, 6> car guide rail, 7> counter weight guide rail, 8> hoistway.

Claims (14)

In the hoistway,
A counterweight that rises and falls in the opposite direction to the basket,
A guide rail for a car that regulates the horizontal movement of the car,
A guide rail for counterweight that regulates horizontal movement of the counterweight,
A rope for suspending the basket and the counterweight,
It is arranged in the hoistway, has a sheave around which the rope is wound, and a motor portion for driving the sheave, and rotates the sheave to allow the car and the counterweight to pass through the rope. A hoist for lifting and lowering,
An elevator apparatus having a first return wheel disposed in the hoistway and around which the rope is wound to change the direction of the rope;
In the hoist, the outer dimension in the rotation axis direction of the sheave is smaller than the outer dimension in a direction perpendicular to the rotation axis, and the counterweight and the cage are separated from each other in a plane cross section of the hoistway. Arranged, located above the car floor when the lowest floor stop of the hoistway and below the car ceiling when the top floor stops,
The elevator apparatus, wherein the first return wheel overlaps at least a part of the hoist in a plane cross section of the hoistway. In the hoistway,
A counterweight that rises and falls in the opposite direction to the basket,
A guide rail for a car that regulates the horizontal movement of the car,
A guide rail for counterweight that regulates horizontal movement of the counterweight,
A rope for suspending the basket and the counterweight,
It is arranged in the hoistway, has a sheave around which the rope is wound, and a motor portion for driving the sheave, and rotates the sheave to allow the car and the counterweight to pass through the rope. A hoist for lifting and lowering,
An elevator apparatus having a first return wheel disposed in the hoistway and around which the rope is wound to change the direction of the rope;
In the hoist, the outer dimension in the rotation axis direction of the sheave is smaller than the outer dimension in a direction perpendicular to the rotation axis, and the counterweight and the cage are separated from each other in a plane cross section of the hoistway. Arranged, located above the car floor when the lowest floor stop of the hoistway and below the car ceiling when the top floor stops,
An elevator apparatus, wherein a rotating surface of the first return wheel is inclined with respect to a wall surface of the adjacent hoistway. The elevator according to claim 1 or 2, wherein at least one of the hoist and the first return wheel is fixed to a beam supported by the car guide rail or the counterweight guide rail. apparatus. The elevator apparatus according to claim 1 or 2, wherein a lower end of the hoist is arranged above a car floor when the lowest floor of the hoistway is stopped. 3. The elevator apparatus according to claim 1, wherein a lower end of the hoist is disposed above a first floor. The elevator device according to claim 1 or 2, wherein a lower end of the hoist is disposed above a reference floor surface. 3. The elevator apparatus according to claim 1, wherein a lower end of the hoist is disposed above a top floor. The elevator apparatus according to claim 1, wherein at least a part of the hoist protrudes from the rear surface of the guide rail toward the car in a plane cross section of the hoistway. 4. 3. The control panel according to claim 1, wherein a control panel for controlling driving of the hoist is disposed at substantially the same height as the hoist or immediately above or immediately below the hoist. Elevator equipment. The control panel which performs drive control of the said hoist, The lower end of the said control panel was arrange | positioned above the car floor at the time of the lowest floor stop of the said hoistway, The Claim 1 or Claim 2 characterized by the above-mentioned. 2. The elevator device according to 2. 3. The elevator apparatus according to claim 1, further comprising a control panel for controlling the drive of the hoist, wherein a lower end of the control panel is disposed above a first floor of the hoistway. . 2. The elevator apparatus according to claim 1, wherein the first return wheel is arranged to be inclined with respect to a wall surface of the adjacent hoistway. 3. 3. The elevator apparatus according to claim 2, wherein the first return wheel is variably attached to a wall of the hoistway. Further comprising a second return wheel disposed in the hoistway, around which the rope is wound to change the direction of the rope,
The said 2nd return wheel is variably attached to the mutual distance of the said 1st return wheel and the said 2nd return wheel in the plane cross section of the said hoistway, The Claim 1 or Claim 2 characterized by the above-mentioned. The elevator device as described.

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