JP2003176087A - 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 not a machinery space, a winding machine 4 of a thin type is arranged between a car 1 and an ascent and descent passage wall on the plane of projection of the hoistway plane cross section, a return sheave 5a over which a part of a rope from a sheave 4a of the winding machine to the car is rolled overlaps with a part of the winding machine 4 on the hoistway plane cross section and the surface of revolution is inclined to the hoistway wall surface. The surface of revolution of a return sheave 5b over which a part of a rope from the sheave 4a to a counter weight 2 is rolled is inclined to the hoistway wall on the hoistway plane cross section. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car and a counterweight, a rope for suspending the car and the counterweight, in a hoistway.
The present invention relates to an elevator device having a hoisting machine that drives the rope and a return wheel that changes the suspension direction of the rope.

[0002]

2. Description of the Related Art FIGS. 12 and 13 are a plan view and a side view showing a conventional elevator apparatus shown in FIGS. 2 and 1 of JP-A-9-165172, for example.

In the figure, 1 is a car on which a person or luggage is placed, 2 is a counterweight for compensating the weight of the car 1, and
3 is a rope that suspends the car 1 and the counterweight 2; 4 is a thin hoist that drives the car 1 and the counterweight 2 through the rope 3 to move up and down; 4a is a sheave 5a of the hoist; 5b is a return wheel that changes the suspension direction of the rope 3, 6 is a car guide rail, 7 is a counterweight guide rail, 8 is a hoistway, 11 is a car 1 suspension vehicle, 12 is a counterweight 2 suspension vehicle, Reference numeral 13 is a rope stopper on the car side, and 14 is a rope stopper on the counterweight side.

Next, a conventional elevator system will be described with reference to FIGS. 12 to 13. The elevator car 1 and the counterweight 2 move up and down via the rope 3 suspended on the sheave 4a of the hoist 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 to prevent other devices in the hoistway or the hoistway. Prevents contact and interference between the wall and the car 1 and counterweight 2. Where basket 1,
The vertical projections of 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.

In recent years, various elevator systems have been proposed for the purpose of minimizing the space occupied by the elevator, by providing a hoisting machine in the hoistway without providing a machine room. Specifically, (1) a method of arranging a thin hoisting machine above the upper and lower limits of the counterweight, (2) a hoisting machine from the top of the hoistway, that is, the car ceiling when the car is stopped on the top floor It is a method of arranging the hoisting machine above (3) a method of arranging the hoisting machine below the pit in the hoistway, that is, below the floor of the car when the car is at the lowest floor.

Of these, (1) and (2) require a hoistway height greater than the minimum height required to lift and lower the elevator, and the hoisting machine is inspected by riding on a car near the top of the hoistway. There is a drawback in that the worker doing the work needs to take protective measures to prevent the head of the hoistway from hitting the ceiling of the hoistway due to unexpected raising of the car. In the case of (2), the heat generated by the hoisting machine stays at the top of the hoistway, that is, near the hoisting machine itself, so that the hoisting machine is likely to fail due to the temperature rise. The method (3) has a drawback in that the hoisting means is required for disposing the hoisting machine in the pit where flooding is most likely. The above-mentioned JP-A-9-1
The elevator device of No. 65172 solves the drawback (1), but introduces a new drawback that it creates an unused space over the entire height of the hoistway above and below the vertical projection plane of the hoisting machine. .

[0007]

As described above, the conventional elevator apparatus has a problem that it creates an unused space. The present invention has been made to solve the above problems, and an object of the present invention is to suppress the generation of an unused space in a hoistway as much as possible.

[0008]

In order to achieve this object, an elevator apparatus according to the present invention has an entrance / exit and first and second car walls located on both sides of the entrance / exit, respectively. A plurality of car guide rails, which respectively face the first car wall and the second car wall and regulate horizontal movement of the car, and a plane cross section of the hoistway when the car moves up and down in the road. In, a counterweight that is located between the first car wall and the first hoistway wall of the hoistway and that ascends and descends in the opposite direction of the car, and a counterweight that restricts horizontal movement of the counterweight A guide rail, a sheave, and a motor for driving the sheave, and is between the first car wall and the first hoistway wall in the plane cross section of the hoistway, Width of hoistway wall The sheave is provided separately from the counterweight, the sheave faces the first hoistway wall, the motor is located on the first car wall surface side, and the outer dimension of the sheave in the rotation axis direction is the rotation. A hoisting machine that is smaller than the outer dimension in the direction perpendicular to the axis, a rope that is wound around the sheave and that suspends the car and the counterweight, and a part of the rope that extends from the sheave to the car. A first return wheel that is wound around, overlaps with a part of the hoisting machine in a plane cross section of the hoistway, and has a rotation surface inclined with respect to a wall surface of the first hoistway; A second return wheel, in which a part of the rope reaching the counterweight is wound, and a rotation surface is inclined with respect to the first hoistway wall surface in a plane cross section of the hoistway. Further, the elevator apparatus of the present invention has an entrance / exit and first and second car walls respectively located on both sides of the entrance / exit, and the elevator car in the hoistway and the first car wall A plurality of car guide rails that respectively face the second car wall and restrict the horizontal movement of the car, and the first car wall and the first of the hoistway in the plane cross section of the hoistway. It has a counterweight that is located between the hoistway wall and moves up and down in the opposite direction of the car, a counterweight guide rail that regulates the horizontal movement of the counterweight, a sheave, and a motor that drives the sheave. Provided on the plane cross section of the hoistway, between the first car wall and the first hoistway wall and in the width direction of the first hoistway wall apart from the counterweight. And The sheave faces the first hoistway wall, the motor is located on the first car wall surface side, and the outer dimension of the sheave in the rotation axis direction is smaller than the outer dimension in the direction perpendicular to the rotation axis. A small hoisting machine and a rope that hangs around the sheave and that suspends the car and the counterweight, and a portion of the rope that extends from the sheave to the car and is wound around the plane cross section of the hoistway. The plane of rotation is relative to the wall surface of the first hoistway such that it overlaps with a part of the hoisting machine and a part of the rope passes between the hoisting machine and the first car wall surface in the plane section. And a second return wheel on which a part of the rope extending from the hoisting machine to the counterweight is wound. Further, the elevator apparatus of the present invention has an entrance / exit and first and second car walls respectively located on both sides of the entrance / exit, and the elevator car in the hoistway and the first car wall A plurality of car guide rails that respectively face the second car wall and restrict the horizontal movement of the car, and the first car wall and the first of the hoistway in the plane cross section of the hoistway. It has a counterweight that is located between the hoistway wall and moves up and down in the opposite direction of the car, a counterweight guide rail that regulates the horizontal movement of the counterweight, a sheave, and a motor that drives the sheave. Provided on the plane cross section of the hoistway, between the first car wall and the first hoistway wall and in the width direction of the first hoistway wall apart from the counterweight. And The sheave faces the first hoistway wall, the motor is located on the first car wall surface side, and the outer dimension of the sheave in the rotation axis direction is smaller than the outer dimension in the direction perpendicular to the rotation axis. A small hoisting machine, and a rope that hangs around the sheave and suspends the car and the counterweight,
In the plane cross section of the hoistway, closer to the guide rail facing the first car wall than one end of the hoist on the side opposite to the counterweight side in the direction perpendicular to the rotation axis of the sheave. And a counter, from which a part of the rope extending from the sheave to the car is wound, and a rotation surface is inclined with respect to the wall surface of the first hoistway, and the hoisting machine to the counter. A second return wheel around which a part of the rope leading to the weight is wrapped,
Have. Further, the elevator apparatus of the present invention has an entrance / exit and first and second car walls respectively located on both sides of the entrance / exit, and the elevator car in the hoistway and the first car wall A plurality of car guide rails that respectively face the second car wall and restrict the horizontal movement of the car, and the first car wall and the first of the hoistway in the plane cross section of the hoistway. It has a counterweight that is located between the hoistway wall and moves up and down in the opposite direction of the car, a counterweight guide rail that regulates the horizontal movement of the counterweight, a sheave, and a motor that drives the sheave. However, in the plane section of the hoistway,
Between the first car wall and the first hoistway wall, provided in the width direction of the first hoistway wall away from the counterweight, and the sheave is the first sheave. A hoisting machine that faces the hoistway wall, the motor is located on the first car wall surface side, and the outer dimension of the sheave in the direction of the rotation axis is smaller than the outer dimension in the direction perpendicular to the rotation axis; For a car that is placed under the car and has a part that protrudes from the car between the line passing through the rotation axis of the sheave and the line passing through the plurality of car guide rails in the plane cross section of the hoistway. A suspension car, a suspension car for the car and a sheave that are wrapped around the sheave, and a rope that suspends the car and the counterweight, and a portion of the rope that extends from the sheave to the suspension car for the car is wrapped around the surface of rotation. First hoistway wall Having a first diverting pulley inclined, and a second diverting pulley to a portion of the rope leading to the counterweight from the hoisting machine is wound against.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, examples of the present invention will be described as follows. Example 1. Embodiment 1 of the present invention relating to an elevator apparatus will be described with reference to FIGS. 1 to 3.

FIG. 1 is a bird's eye view of the first embodiment of the elevator apparatus of the present invention, and FIG. 2 is a plan view. This is an example in which the counterweight is behind the car when viewed from the entrance / exit of the elevator, and the hoisting machine is arranged on the side of the car.

In the figure, 1 is a car on which a person or luggage is placed, 2 is a counterweight for compensating the weight of the car 1, and
3 is a rope for suspending the car 1 and the counterweight 2; 4 is a thin hoist for driving the car 1 and the counterweight 2 through the rope 3 to move up and down; 4a is a hoist 4
Sheaves, 4b are motors of the hoisting machine 4, 5a, 5b are return wheels that change the suspension direction of the rope 3, 6 is a guide rail for a car, 7 is a guide rail for a counterweight, 8 is a hoistway, and 8a is a hoist. The top of the road 8, 8b is a pit portion of the hoistway 8, 9 is a beam for supporting the hoist 4, 10 is a return wheel 5
A beam for supporting the car, 11 a suspension car for the car 1, 12 a suspension car for the counterweight 2, 13 a rope stopper on the car side, 1
4 is a cord on the counterweight side, and 15 is a control panel. The dashed-dotted line A in FIG. 1 indicates the height of the car ceiling when the car is stopped at the top floor. That is, the top is above this line. The dashed-dotted line B in FIG. 1 indicates the height of the car floor surface when the car is at the lowest floor. That is, the portion below this line is the pit portion.

In the figure, the lower end of the hoisting machine 4 is indicated by a chain line B.
Above. That is, the hoisting machine 4 is arranged below the ceiling of the car when the top floor of the car is stopped and at the lower end above the floor surface of the car when the bottom floor of the car is stopped. Further, the hoisting machine 4 is arranged in parallel with 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 within the plane cross section of the hoistway 8 and has a guide rail 6 for a car.
It is located closer to the car than the back of. Here, the rear surface of the guide rail means the portion shown in FIG. 3C. In the present example, the hoisting machine 4 is directly fixed to the beam 9, but it is also possible to mount the hoisting machine 4 via an elastic body to form a vibration-proof structure. Further, the beam 9 may be attached to the car guide rail 6 and the counterweight guide rail 7 via an elastic body.

The return wheels 5a and 5b are fixed to a beam 10 supported by a car guide rail 6 and a counterweight guide rail 7. In this example,
Although the return wheels 5a and 5b are directly fixed to the beam 10, the return wheels 5a and 5b may be attached via an elastic body to form a vibration-proof structure. Further, the beam 10 and 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 being above the floor surface of the car when the car is at the lowest floor. The rope 3 suspended on the sheave 4a of the hoisting machine 4 driven by the control board 15 is turned by the return wheels 5a and 5b, and the car 1 and the counterweight 12 are passed through the car suspension car 11 and the counterweight suspension car 12. Raise and lower the counterweight 2. At this time, the car guide rail 6 and the counterweight guide rail 7 restrict 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 plane of the hoistway 8 and the hoisting machine 4
Since the sheave 4a is located closer to the car than the rear surface of the car guide rail 6 in the plane cross section of the hoistway 8,
The area occupied by the hoisting machine 4 on the projection plane of the plane cross section is small, and the unused space over the entire height of the hoistway is reduced. Further, since the winding angle of the rope wound around the sheave 4a of the hoist can be larger than 180 °, the traction ability can be increased. Also, since the hoisting machine 4 is below the car ceiling when the car is stopped on the top floor, it is possible that an inspector riding on the car may hit his head on the ceiling of the hoistway due to an unexpected rise of the car. None, no protective measures required. Furthermore, since the heat generated by the hoisting machine is transferred to the upper part near the ceiling of the hoistway, the hoisting machine will not be damaged due to the temperature rise. Further, since the return wheel 5b is inclined with respect to the wall surface of the hoistway 8, the entry angle of the rope 3 into the rope groove of the sheave 4a is reduced and damage to the rope is prevented.

Further, since the hoisting machine 4 is attached below the beam 9 and the return wheels 5a and 5b are attached to the beam 10, the car guide rail 6 and the counterweight guide are provided via the beam 9. Inside the guide rail, an upward force due to the tension of the rope 3 acting on the rail 7 and a 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 are generated. They offset each other and reduce the force on the building.

Further, the lower end of the hoisting machine 4 and the control panel 15
Since the lower end of the car is above the car floor and below the car ceiling when the car is at the lowest floor, it will not be damaged even if the pit is flooded.

In this type of elevator system without a machine room, the depth of the pit is about 1.2 m to 1.5 m, and if the hoisting machine and the control panel are arranged at this position, the operator cannot Is within reach of standing on the pit floor, for example, 1.2m to 1.7m high (car floor when the lowest floor of the car is stopped ~ 1.7m high from the pit floor). The inspection work is easy. If the lower end of the hoisting machine 4 and the lower end of the control panel 15 are placed above the car floor and below the car ceiling when the car is stopped on the first floor, not only the pit but also the entire basement will be flooded. However, the hoisting machine 4 and the control panel 15 are not damaged.

Further, when the lower end of the hoisting machine 4 is arranged above the floor of the car and below the ceiling of the car when the car standard floor is stopped, and the control panel 15 is arranged at approximately the same height, the operation of the elevator can be managed immediately. It is the easiest to perform the inspection.

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

Example 2. Second Embodiment A second embodiment of the present invention relating to an elevator apparatus will be described with reference to FIGS. 4 to 5.
FIG. 4 is an overhead view of the second embodiment of the elevator apparatus of the present invention, and FIG. 5 is a plan view. This is because the counterweight is behind the car when viewed from the elevator entrance / exit,
This is an example in which the hoisting machine is arranged beside the lifting space of the counterweight. In the figure, the same reference numerals as those used in the previous figures indicate corresponding parts, and a description thereof will be omitted.

In the figure, the lower end of the hoisting machine 4 is indicated by a chain line B.
Above. That is, the hoisting machine 4 is arranged below the ceiling of the car when the top floor of the car is stopped and at the lower end above the floor surface of the car when the bottom floor of the car is stopped. Further, the hoisting machine 4 is arranged in parallel with one adjacent wall.

Further, the return wheels 5a and 5b are arranged so as to partially overlap the hoisting machine 4 on the plane of projection of the hoistway 8 in a plane cross section. Further, since the return wheel 5b is inclined with respect to the wall surface of the hoistway 8, the entry angle 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 provided with a car guide rail 6
Also, it is fixed from below to the beam 9 supported by the counterweight guide rail 7. In this example,
Although the hoisting machine 4 is directly fixed to the beam 9, the hoisting machine 4 may be attached via an elastic body to form a vibration-proof structure. Further, the beam 9 may be attached to the car guide rail 6 and the counterweight guide rail 7 via an elastic body.

The return wheel 5 is fixed to the beam 10 supported by the car guide rail 6 and the counterweight guide rail 7. In this example, the return wheel 5
Is directly fixed to the beam 10, but it may be attached via an elastic body to form a vibration-proof structure. Further, the beam 10 and the car guide rail 6 and the counterweight guide rail 7 can be attached via an elastic body.

Further, the control panel 15 is arranged in the plane cross section of the hoistway 8 immediately above or just below where the projection surface overlaps with the hoist 4. The rope 3 suspended on the sheave 4a of the hoisting machine 4 driven by the control board 15 is turned around by the return wheel 5, and the car 1 and the counterweight are passed through the car suspension vehicle 11 and the counterweight suspension vehicle 12. Raise and lower 2. At this time, the car guide rail 6 and the counterweight guide rail 7 restrict 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 in a plane section, and the control panel 15 has a plane of projection overlapping the hoisting machine 4 in the plane of the hoistway 8. Since it is arranged immediately above or below, the area occupied by the hoisting machine 4 on the plane of projection of the hoistway 8 is small,
The unused space over the entire height of the hoistway has been reduced. Also,
Since the hoisting machine 4 is below the car ceiling when the top floor of the car is stopped, there is no fear that an inspector working on the car will hit his head on the ceiling of the hoistway due to an unexpected rise of the car. No protective measures required. Furthermore, since the heat generated by the hoisting machine goes to the upper part of the hoistway near the ceiling, the hoisting machine will not be damaged by the heat.

Further, since the hoisting machine 4 is attached below the beam 9 and the return wheels 5a and 5b are attached to the beam 10, the car guide rail 6 and the counterweight guide are provided via the beam 9. Inside the guide rail, an upward force due to the tension of the rope 3 acting on the rail 7 and a 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 are generated. They offset each other and reduce the force on the building.

Further, the lower end of the hoisting machine 4 is above the floor of the car and below the ceiling of the car when the lowest floor of the car is stopped, and the control panel 15 has a plane of projection in the plane section of the hoistway 8 for hoisting. The hoisting machine 4 and the control panel 15 are not damaged even if the pit is submerged, because the hoisting machine 4 and the control panel 15 are located immediately above and directly above the machine 4.

In this type of elevator system without a machine room, the depth of the pit is about 1.2 m to 1.5 m, and if the hoisting machine is placed at this position, the operator will not be able to see the pit floor. Within reach of standing, for example, 1.2m to 1.7m height (car floor when the bottom floor of the car is stopped ~
Since it is located 1.7 m above the pit floor, inspection work is easy.

The lower end of the hoisting machine 4 is positioned above the floor of the car and below the ceiling of the car when the car is stopped on the first floor, and the control panel 15 has a projection plane on the plane cross section of the hoistway 8 as the hoisting machine 4. In the case where the hoisting machine 4 and the control panel 15 are arranged immediately above the area where they overlap with each other, the hoisting machine 4 and the control panel 15 are not damaged even if the entire basement floor is flooded as well as the pit. Further, the lower end of the hoisting machine 4 is positioned above the car floor surface and below the car ceiling surface when the car is at the standard floor stop, and the control panel 15 is located in the plane cross section of the hoistway 8 in the plane where the projection surface overlaps with the hoisting machine 4. If it is located directly above or below, it will be the easiest to perform inspections in accordance with elevator operation management.

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

Example 3. Embodiment 3 of the present invention relating to an elevator apparatus using FIGS. 6 to 7 and FIG.
Will be explained. FIG. 6 is a bird's eye view of the third embodiment 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 as seen from the entrance / exit of the elevator, and the hoisting machine is on the same side of the car as the counterweight and the projection surface does not overlap with the counterweight on the plane cross section of the hoistway. This is an example of arrangement. In the figure, the same reference numerals as those used in the previous figures indicate corresponding parts, and a description thereof will be omitted.

In the figure, the lower end of the hoisting machine 4 is indicated by a chain line B.
Above. That is, the hoisting machine 4 is arranged below the ceiling of the car when the top floor of the car is stopped and at the lower end above the floor surface of the car when the bottom floor of the car is stopped. Further, the hoisting machine 4 is arranged in parallel with one adjacent wall. Further, the return wheel 5 a is arranged so as to partially overlap the hoisting machine 4 on the plane of projection of the hoistway 8 in a plane cross section. Also,
Since the return wheels 5a and 5b are inclined with respect to the wall surface of the hoistway 8, the entry angle 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 provided with a car guide rail 6
Also, it is fixed from below to the beam 9 supported by the counterweight guide rail 7. 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 cross section of the hoistway 8. Here, the back surface of the guide rail means a portion C in FIG. In the present example, the hoisting machine 4 is directly fixed to the beam 9, but it is also possible to mount the hoisting machine 4 via an elastic body to form a vibration-proof structure. Further, the beam 9 may be attached to the car guide rail 6 and the counterweight guide rail 7 via an elastic body.

The return wheel 5 is fixed to the beam 10 supported by the car guide rail 6 and the counterweight guide rail 7. In this example, the return wheel 5
Is directly fixed to the beam 10, but it may be attached via an elastic body to form a vibration-proof structure. Further, the beam 10 and 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 around by the return wheel 5, and the car 1 is passed through the car suspension wheel 11 and the counterweight suspension wheel 12. And the counterweight 2 is moved up and down. At this time, the car guide rail 6 and the counterweight guide rail 7 restrict 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 plane of the hoistway 8 and the hoisting machine 4
Since the motor 4b is located on the car side of the plane cross section of the hoistway 8 with respect to the rear surface of the car guide rail 6, the area occupied by the hoisting machine 4 on the projection plane of the plane cross section of the hoistway 8 is It is small and reduces the unused space over the entire height of the hoistway. Also, since the hoisting machine 4 is below the car ceiling when the car is stopped on the top floor, it is possible that an inspector riding on the car may hit his head on the ceiling of the hoistway due to an unexpected rise of the car. There is no. Furthermore, since the heat generated by the hoisting machine goes to the upper part of the hoistway near the ceiling, the hoisting machine will not be damaged by the heat.

Since the hoisting machine 4 is mounted below the beam 9 and the return wheels 5a and 5b are mounted to the beam 10, the car guide rail 6 and the counterweight guide are mounted via the beam 9. Inside the guide rail, an upward force due to the tension of the rope 3 acting on the rail 7 and a 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 are generated. They offset each other and reduce the force on the building.

Further, the lower end of the hoisting machine 4 and the control panel 15
Since the lower end of is above the floor of the car and below the ceiling of the car when the lowest floor of the car is stopped, the hoisting machine 4 and the control panel 15 will not be damaged even if the pit is flooded.

In this type of elevator system without a machine room, the pit depth is 1.2 m to 1. If the hoisting machine and the control panel are placed at this position, it is within a reach of an operator when standing on the pit floor, for example, a range of 1.2 m to 1.7 m height (car maximum Since it is located on the floor of the car when stopped on the lower floor to 1.7 m above the pit floor), inspection work is easy. When the lower end of the hoisting machine 4 is above the car floor surface and the upper end is below the car ceiling surface when the car is stopped on the first floor, and the control panel 15 is arranged at substantially the same height, not only the pits but also the pits are placed. Even if the entire basement floor is flooded, the hoisting machine 4 and the control panel 15 will not be damaged.

Further, when the lower end of the hoisting machine 4 is above the car floor and the upper end is below the car ceiling when the car standard floor is stopped and the control panel 15 is arranged at substantially the same height, operation management of the elevator is controlled. It is the easiest to carry out inspections in accordance with the above. When the lower end of the hoisting machine 4 is above the floor of the car and the upper end is below the car ceiling when the upper floor is stopped, the hoisting machine 4 and the return wheel 5 are close to each other. It is easy to adjust the position of, and convenient for inspection.

Example 4. Embodiment 4 of the present invention relating to an elevator apparatus will be described with reference to FIGS. 8 to 10. FIG. 8 is a fourth embodiment of the elevator device according to the present invention.
Fig. 2 shows a plan view of Fig. 9 and Fig. 10
The figure shows the main part. This is because the counterweight is behind the car when viewed from the entrance / exit of the elevator, and the hoist is on the side of the car and just below the car ceiling height when the top floor is stopped. This is an example of arrangement on the lower side. The same reference numerals as those in the above-mentioned figures indicate corresponding parts, and the description thereof will be omitted.

In the figure, 16 is 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 by, for example, bolting the beam 10 and the frame of the return wheel 5 and making the fastening holes elongated. However, the variable structure is not limited to this. Further, this variable structure is also applicable to the first to third embodiments.

Below the beam 10 supporting the return wheel 5,
Since the hoisting machine 4 is attached, the tension of the rope 3 acts on the beam 10 by the force acting upward on the sheave 4a of the hoisting machine 4 and the force acting downward on the return wheel 5. Since the forces are offset as internal forces, the force acting on the guide rail is reduced. Further, since the hoisting machine 4 and the return wheel 5 are attached to the same beam 10, mutual position adjustment is easy.

Further, the hoisting machine 4 and the return wheel 5 are mounted on the same beam 10, and the beam 10 is made of an elastic body 16.
Since it is attached to the guide rails 6 of the car and the guide rails 7 of the counterweight via the, the vibrations of the hoisting machine 4 and the return wheel 5 can be effectively insulated. further,
Since the inclination angle of the return wheel 5 with respect to the hoistway wall is variable, and the distance between the two return wheels 5 is also variable, the car 1 having different sizes, the car suspension car 12, and the counterweight suspension car 13 are provided. Even if the positional relationship between and in the hoistway plane changes,
Can be handled with the same design.

Embodiment 5 An embodiment of the present invention relating to an elevator apparatus will be described with reference to FIG. 11th
The figure shows a fifth embodiment of the elevator apparatus of the present invention.
In the figure, the same reference numerals as those used in the previous figures indicate corresponding parts, and a description thereof will be omitted. In the figure, 17 is a drive device in which one of the two return wheels 5 is replaced. This replacement can be applied to the first to fourth embodiments.

By replacing one of the two return wheels 5a and 5b with the driving device 17 and driving the hoisting machine 4 in synchronism with each other, the driving capacity can be improved, and a large-capacity elevator device can be supported.

As described above, in the elevator apparatus according to the present invention, the car weight that moves up and down in the hoistway, the counter weight that moves in the opposite direction of the car, and the car guide that regulates the horizontal movement of the car. A rail, a counterweight guide rail that restricts horizontal movement of the counterweight, a rope that suspends the car and the counterweight, and the rope that is in the hoistway and is wound around the rope. It is suitable for use in an elevator having a car and a hoist for raising and lowering the counterweight.

[0051]

Since the elevator device according to the present invention is constructed as described above, it is possible to suppress the generation of unused space in the hoistway as much as possible.

[Brief description of drawings]

FIG. 1 is an overhead view of an elevator apparatus according to a first embodiment of the present invention.

FIG. 2 is a diagram showing Example 1 and Example 4 of the present invention.
2 is a plan view of the elevator device of FIG.

FIG. 3 is an explanatory diagram of a “rear surface” of the guide rail used in Examples 1 to 5 of the present invention.

FIG. 4 is an overhead view of an elevator device according to a second embodiment of the present invention.

FIG. 5 is a plan view of an elevator device according to a second embodiment of the present invention.

FIG. 6 is an overhead view of an elevator device according to a third embodiment of the present invention.

FIG. 7 is a plan view of an elevator device according to a third embodiment of the present invention.

FIG. 8 is an overhead view of an elevator device according to a fourth embodiment of the present invention.

FIG. 9 is a diagram of a main part of an elevator device according to a fourth embodiment of the present invention.

FIG. 10 is a diagram of a main part of an elevator device according to a fourth embodiment of the present invention.

FIG. 11 is an overhead view of an elevator device according to a fifth embodiment of the present invention.

FIG. 12 is a plan view of a conventional elevator device disclosed in Japanese Patent Laid-Open No. 9-165172.

FIG. 13 is a side view of a conventional elevator device disclosed in Japanese Patent Laid-Open No. 9-165172.

[Explanation of symbols]

1 basket, 2 counter weights, 3 ropes, 4
Hoisting machine, 4a sheave, 4b motor, 5a return wheel, 5b return wheel, 6 car guide rail, 7 counter weight guide rail, 8 hoistway.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Makoto Fusho             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. (72) Inventor Takenobu Honda             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. (72) Inventor Shigeki Yamakawa             2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo             Inside Ryo Electric Co., Ltd. F-term (reference) 3F305 BA04 BB02 BC18 BD04                 3F306 AA07 BB02 BB03 BB11 BC10

Claims (10)

[Claims] 1. An entrance / exit and first and second car walls respectively positioned on both sides of the entrance / exit, and a car that moves up and down in a hoistway, the first car wall and the second car wall. A plurality of car guide rails that respectively face the car wall and restrict the horizontal movement of the car; the first car wall and the first hoistway wall of the hoistway in a plane cross section of the hoistway; A counterweight, which is located between the upper and lower parts and which moves up and down in the opposite direction of the car, a counterweight guide rail for restricting the horizontal movement of the counterweight, a sheave, and a motor for driving the sheave. In a plane cross section of the road, between the first car wall and the first hoistway wall, provided in the width direction of the first hoistway wall away from the counterweight, and Sheave is first above A hoisting machine that faces the hoistway wall, the motor is located on the first car wall surface side, and the outer dimension of the sheave in the direction of the rotation axis is smaller than the outer dimension in the direction perpendicular to the rotation axis; A rope that hangs around the sheave and that suspends the car and the counterweight, and a portion of the rope that extends from the sheave to the car are wrapped around, and a portion of the hoisting machine in a plane cross section of the hoistway. And a part of the rope extending from the hoisting machine to the counterweight is wound around the first return wheel that overlaps with the first hoistway wall and the rotation surface is inclined with respect to the first hoistway wall surface. In the cross section, the second rotation surface is inclined with respect to the first hoistway wall surface.
An elevator device having a return vehicle. 2. A boarding / alighting gate and first and second car walls respectively positioned on both sides of the boarding / alighting entrance, and a car that moves up and down in a hoistway, the first car wall and the second car wall. A plurality of car guide rails that respectively face the car wall and restrict the horizontal movement of the car; the first car wall and the first hoistway wall of the hoistway in a plane cross section of the hoistway; A counterweight, which is located between the upper and lower parts and which moves up and down in the opposite direction of the car, a counterweight guide rail for restricting the horizontal movement of the counterweight, a sheave, and a motor for driving the sheave. In a plane cross section of the road, between the first car wall and the first hoistway wall, provided in the width direction of the first hoistway wall away from the counterweight, and Sheave is first above A hoisting machine that faces the hoistway wall, the motor is located on the first car wall surface side, and the outer dimension of the sheave in the direction of the rotation axis is smaller than the outer dimension in the direction perpendicular to the rotation axis; A rope that hangs around the sheave and that suspends the car and the counterweight, and a portion of the rope that extends from the sheave to the car are wrapped around, and a portion of the hoisting machine in a plane cross section of the hoistway. And a first barb whose rotation surface is inclined with respect to the first hoistway wall surface so that a part of the rope passes between the hoisting machine and the first car wall surface in the plane cross section. An elevator apparatus comprising: a vehicle; and a second return wheel on which a part of the rope extending from the hoisting machine to the counterweight is wound. 3. A car suspension car disposed under the car, and a counterweight suspension car disposed on the counterweight, wherein the rope is wound around the car suspension car and the counterweight suspension car. 3. The elevator apparatus according to claim 1, wherein the car and the counterweight are suspended. 4. In the plane cross section of the hoistway, a part of the hoisting machine is located closer to the first car wall surface side than the back surface of the car guide rail facing the first car wall. The elevator device according to claim 1 or 2, characterized in that. 5. The elevator apparatus according to claim 1, wherein the hoisting machine is fixed to a beam supported by the car guide rail or the counterweight guide rail. 6. The first return wheel and the second return wheel are fixed to a beam supported by the car guide rail and the counterweight guide rail. The elevator device according to 2. 7. The first return wheel or the second return wheel is attached such that an inclination angle with respect to the first hoistway wall can be changed. Elevator device. 8. The elevator apparatus according to claim 1 or 2, wherein the first return wheel and the second return wheel are attached so that a distance between them can be changed. 9. An entrance / exit and first and second car walls respectively positioned on both sides of the entrance / exit, and a car that moves up and down in a hoistway, the first car wall and the second car wall. A plurality of car guide rails that respectively face the car wall and restrict the horizontal movement of the car; the first car wall and the first hoistway wall of the hoistway in a plane cross section of the hoistway; A counterweight, which is located between the upper and lower parts and which moves up and down in the opposite direction of the car, a counterweight guide rail for restricting the horizontal movement of the counterweight, a sheave, and a motor for driving the sheave. In a plane cross section of the road, between the first car wall and the first hoistway wall, provided in the width direction of the first hoistway wall away from the counterweight, and Sheave is first above A hoisting machine that faces the hoistway wall, the motor is located on the first car wall surface side, and the outer dimension of the sheave in the direction of the rotation axis is smaller than the outer dimension in the direction perpendicular to the rotation axis; A rope that is wrapped around the sheave and that suspends the car and the counterweight, and a side opposite to the counterweight side in a direction perpendicular to the rotation axis of the sheave in the plane cross section of the hoistway. The hoist is arranged closer to the guide rail facing the first car wall than one end of the hoist, a part of the rope extending from the sheave to the car is wound around, and the rotating surface is the first hoistway. A first return wheel that is inclined with respect to the wall surface; and a second return wheel that is wound around a portion of the rope from the hoist to the counterweight. Elevator device. 10. An entrance / exit and first and second car walls respectively located on both sides of the entrance / exit, and a car that moves up and down in a hoistway, the first car wall and the second car wall. A plurality of car guide rails that respectively face the car wall and restrict the horizontal movement of the car; the first car wall and the first hoistway wall of the hoistway in a plane cross section of the hoistway; A counterweight, which is located between the upper and lower parts and which moves up and down in the opposite direction of the car, a counterweight guide rail for restricting the horizontal movement of the counterweight, a sheave, and a motor for driving the sheave. In a plane cross section of the road, between the first car wall and the first hoistway wall, provided in the width direction of the first hoistway wall away from the counterweight, and The sheave is the above A hoisting machine that faces the hoistway wall, the motor is located on the side of the first car wall surface, and the outer dimension of the sheave in the direction of the rotation axis is smaller than the dimension of the sheave in the direction perpendicular to the rotation axis. A car, which is disposed under the car and partially protrudes from the car, in a plane cross section of the hoistway, between a line passing through the rotation axis of the sheave and a line passing through the plurality of car guide rails. Suspension car, the car suspension car and the sheave, and a rope that suspends the car and the counterweight, and a part of the rope from the sheave to the car suspension car is wound around the surface of rotation. A first return wheel inclined with respect to the first hoistway wall surface; and a second return wheel around which a part of the rope extending from the hoisting machine to the counterweight is wound. Elevator device that.