JP3489578B2 - Elevator equipment - Google Patents

Elevator equipment

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Publication number
JP3489578B2
JP3489578B2 JP2001543429A JP2001543429A JP3489578B2 JP 3489578 B2 JP3489578 B2 JP 3489578B2 JP 2001543429 A JP2001543429 A JP 2001543429A JP 2001543429 A JP2001543429 A JP 2001543429A JP 3489578 B2 JP3489578 B2 JP 3489578B2
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JP
Japan
Prior art keywords
car
counterweight
hoistway
hoisting machine
rope
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2001543429A
Other languages
Japanese (ja)
Inventor
誠 富所
茂樹 山川
武信 本田
美克 林
修喜 濱口
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP1999/006807 priority Critical patent/WO2001042121A1/en
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Publication of JP3489578B2 publication Critical patent/JP3489578B2/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=14237482&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JP3489578(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035Arrangement of driving gear, e.g. location or support
    • B66B11/0045Arrangement of driving gear, e.g. location or support in the hoistway
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065Roping
    • B66B11/008Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave

Description

TECHNICAL FIELD The present invention relates to a car and a counterweight, a rope for suspending the counterweight, a hoisting machine for driving the rope, and a barb for changing the suspension direction of the rope in a hoistway. The present invention relates to an elevator device having a car.

BACKGROUND ART FIGS. 12 and 13 are shown in, for example, Japanese Patent Laid-Open No. 9-1651.
It is the top view and side view which show the conventional elevator apparatus shown by FIG. 2 of FIG. 72 and FIG.

In the figure, 1 is a car on which a person or luggage is placed, 2 is a counterweight that compensates for the weight of the car 1, 3 is a rope that suspends the car 1 and the counterweight 2, and 4 is a car 1 and a counterweight via the rope 3. 2. A thin hoisting machine that drives and lifts 2 and 4a is a sheave of the hoisting machine, 5a,
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, 13 is a rope stop on the car side, 14
Is a rope stopper on the counterweight side.

Next, a conventional elevator apparatus will be described with reference to FIGS. 12 to 13.

The elevator car 1 and the counterweight 2 are attached via the rope 3 suspended on the sheave 4a of the hoist 4.
Moves up and down. 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.
Here, the basket 1, the counterweight 2, and the hoist 4
The vertical projections of are separated from each other and the hoisting machine 4 is placed parallel to one adjacent wall.

In recent years, in elevator systems, various systems have been proposed in which a hoisting machine is incorporated in a hoistway without providing a machine room in order to minimize the space occupied by the elevator. 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 more hoistway height than the minimum height required to lift and lower the elevator, and also work on the car near the top of the hoistway to perform maintenance and inspection of the hoisting machine. It has the disadvantage that a person must take protective measures to prevent his head from hitting the ceiling of the hoistway due to an 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. JP-A-9-165172
The elevator device of No. 1 solves the drawback (1), but introduces a new drawback that it causes an unused space over the entire height of the hoistway above and below the vertical projection plane of the hoisting machine.

As described above, the conventional elevator device has a problem that it creates an unused space over the entire height of the hoistway above and below the vertical projection plane of the hoisting machine.

DISCLOSURE OF THE INVENTION The present invention has been made in order to solve the above problems, and suppresses the generation of an unused space in a hoistway as much as possible,
The purpose is to prevent failures due to the temperature rise of the hoisting machine, to prevent damage to the hoisting machine against flooding into the hoistway, and to 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 in a hoistway, a counterweight that moves up and down in the opposite direction of the car, and a car guide rail that regulates the horizontal movement of the car A counterweight guide rail for restricting the horizontal movement of the counterweight, a rope for suspending the car and the counterweight, and a sheave on which the rope is wound and which is arranged in the hoistway. A hoist having a motor unit for driving the sheave, and raising and lowering the car and the counterweight via the rope by rotating the sheave, and the rope disposed in the hoistway, First wrapped around to change the direction of the rope
And a beam supporting the first return wheel, the hoist comprises: a hoisting machine having an outer dimension in a direction of a rotation axis of the sheave in a direction perpendicular to the rotation axis. It is smaller than the external dimensions, the counterweight and the car are arranged apart from each other in the plane cross section of the hoistway, and the car ceiling is above the car floor when the lowest floor of the hoistway is stopped and when the top floor is stopped. Positioned below and attached to the beam from below, the first return wheel is
The plane cross section of the hoistway overlaps at least a part of the hoisting machine.

Further, in the elevator apparatus of the present invention, a car that moves up and down in a hoistway, a counterweight that moves up and down in the opposite direction of the car, a car guide rail that restricts horizontal movement of the car, and a counterweight of the counterweight. A counterweight guide rail that restricts horizontal movement, a rope that suspends the car and the counterweight, and a sheave on which the rope is wound and which drives the sheave on which the rope is wound. A hoisting machine having a motor part, which raises and lowers the car and the counterweight via the rope by rotating the sheave,
In the elevator device, which is arranged in the hoistway and has a first return wheel around which the rope is wound and which changes the direction of the rope, the hoisting machine has an outer dimension in a rotation axis direction of the sheave. Is smaller than the outer dimension in a direction perpendicular to the rotation axis, the counterweight and the basket are arranged apart from each other in the plane cross section of the hoistway, and the car floor surface when the lowest floor of the hoistway is stopped Located above and below the car ceiling when the top floor is stopped, the first return wheel is located above the hoist and overlaps at least a portion of the hoist in the plane cross section. Placed,
The rotation surface of the first return wheel is inclined with respect to the wall surface of the hoistway adjacent thereto.

  Further, the beam has a vibration isolation structure.

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 that compensates for the weight of the car 1, 3 is a rope that suspends the car 1 and the counterweight 2, and 4 is a car 1 and a counterweight via the rope 3. 2 is a thin hoist for driving and raising and lowering 2 and 4a is a sheave of the hoist 4 and 4b is a hoist 4.
Motors 5a, 5b are return wheels for changing 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, 8a is the top of the hoistway 8, and 8b is a hoistway 8 is a pit portion, 9 is a beam for supporting the hoisting machine 4, 10 is a beam for supporting the return wheel 5, 11 is a suspension car for the car 1, 12 is a suspension car for the counterweight 2, 13 is a rope stop on the car side , 14 is a rope stopper 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 above the dashed-dotted 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 at the lower end above the floor surface of the car when the bottom floor of the car is stopped. Also, hoisting machine 4
Are placed parallel to one adjacent wall.

Further, the return wheel 5a 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, and the return wheel 5b is disposed.
Are inclined with respect to the wall surface.

Further, the hoisting machine 4 is fixed below the beam 9 supported by the car guide rail 6 and the counterweight guide rail 7. The sheave 4a 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 rear surface of the guide rail means the portion shown in FIG. 3C. In this example, the hoist 4
Is directly fixed to the beam 9, but it 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.

Further, 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 wheel 5
Although a and 5b are directly fixed to the beam 10, they 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 at substantially the same height as the hoisting machine 4 with its lower end being above the floor surface 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 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. Counter weight 2
Raise and lower. 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 placed on the hoisting machine 4 on the projection surface of the hoistway 8 having a flat cross section.
And the sheave 4 of the hoisting machine 4 which are partially overlapped with each other.
Since a 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 hoisting machine 4 occupies a small area on the projection plane of the plane cross section of the hoistway 8. The unused space over the entire height of the hoistway has been reduced. The winding angle of the rope wound around the sheave 4a of the hoist is 1
Since the angle can be made larger than 80 °, 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 rail 7 are connected via the beam 9. The upward force due to the tension of the rope 3 acting 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 applied to the building.

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

In this type of elevator without machine room,
The depth of the pit is about 1.2m to 1.5m, and if the hoisting machine and the control panel are arranged at this position, the reach of the worker when standing on the pit floor, for example, 1.2m.
To 1.7 m (from the floor of the car when stopped at the bottom of the car to the height of 1.7 m 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 substantially the same height, inspection in accordance with the operation management of the elevator can be performed. It will be the easiest to do.

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 wheels 5a and 5b are close in height. , Convenient to inspect 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 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 laterally of 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 above the dashed-dotted 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 at the lower end above the floor surface of the car when the bottom floor of the car is stopped. Also, hoisting machine 4
Are placed 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 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 fixed to the beam 9 supported by the car guide rail 6 and the counterweight guide rail 7 from below. 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. Also, beam 9
The cage guide rail 6 and the counterweight guide rail 7 can be attached via an elastic body.

Further, 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 connected to the beam 1.
Although it is directly fixed to 0, it can 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 board 15 is arranged in the plane cross section of the hoistway 8 immediately above or immediately 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 suspension vehicle 11 and the counterweight suspension vehicle 12 are rotated.
The car 1 and the counterweight 2 are moved up and down via. 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 placed on the hoisting machine 4 on the projection surface of the hoistway 8 having a flat cross section.
Since the control panel 15 is disposed so as to partially overlap with the hoistway 8, the control panel 15 is disposed immediately above or directly below the hoisting machine 4 so that the projection surface overlaps with the hoisting machine 4. Therefore, the area occupied by the hoisting machine 4 is small, and the unused space over the entire height of the hoistway is reduced. 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 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 rail 7 are connected via the beam 9. The upward force due to the tension of the rope 3 acting 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 applied to 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.
In the plane cross section of the hoistway 8, 5 is immediately above the hoisting machine 4 so that the projection surface overlaps the hoisting machine 4.
The control board 15 is not damaged.

In this type of elevator without machine room,
The depth of the pit is about 1.2 m to 1.5 m, and if the hoisting machine is arranged at this position, the reach of the worker when standing on the pit floor, for example, 1.2 m to 1. 7 m
It is in the range of height (from the floor of the car when stopped at the bottom of the car to the height of 1.7 m from the pit floor), and the inspection work is easy.

In addition, the lower end of the hoisting machine 4 is set above the car floor surface and below the car ceiling surface when the car is stopped on the first floor, 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. When it is placed directly above the hoisting machine 4 and the control panel 15, 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 heights of the hoisting machine 4 and the return wheel 5 are close to each other. It is convenient to inspect.

Further, it becomes possible to reduce the material and the space by integrating the beams that support both.

Example 3. 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 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 above the dashed-dotted 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 at the lower end above the floor surface of the car when the bottom floor of the car is stopped. Also, hoisting machine 4
Are placed parallel to 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. Further, 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 fixed to the beam 9 supported by the car guide rail 6 and the counterweight guide rail 7 from below. Then, the motor 4b of the hoisting machine 4 moves the car guide rail 6 within the plane cross section of the hoistway 8.
It is located closer to the car than the back of. Here, the rear surface of the guide rail means a portion C in FIG. In this example, the hoist 4
Is directly fixed to the beam 9, but it 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.

Further, 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 connected to the beam 10
Although it is directly fixed to the above, 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 board 15 is turned around by the return wheel 5, and the car suspension vehicle 11 and the counterweight suspension vehicle 12 are rotated.
The car 1 and the counterweight 2 are moved up and down via. 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 placed on the hoisting machine 4 on the projection surface of the hoistway 8 having a flat cross section.
And the motor 4b of the hoisting machine 4 are located on the car side of the plane cross section of the hoistway 8 rather than on the rear surface of the car guide rail 6, so that the plane cross section of the hoistway 8 is The area occupied by the hoisting machine 4 on the projection surface is small, and the unused space over the entire height of the hoistway is reduced. Also, since the hoisting machine 4 is below the car ceiling when the car top floor 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.
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 rail 7 are connected via the beam 9. The upward force due to the tension of the rope 3 acting 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 applied to the building.

Further, since the lower end of the hoisting machine 4 and the lower end of the control panel 15 are above the car floor surface and below the car ceiling surface when the lowest floor of the car is stopped, even if the pit is flooded, the hoisting machine 4 and the control can be controlled. The board 15 is not damaged.

In this type of elevator without machine room,
The pit depth is 1.2m to 1. . If the hoisting machine and the control panel are placed at this position, it is within a reach of the worker when standing on the pit floor, for example, 1.2 m.
It is in the range of m to 1.7 m height (car floor surface when the car is stopped at the lowest floor to 1.7 m height from the pit floor), and the inspection work is easy.

The lower end of the hoisting machine 4 is above the floor of the car and the upper end is below the top of the car when the car is on the first floor.
When 5 is arranged at almost the same height, the hoisting machine 4 and the control panel 15 will not be damaged even if the entire basement floor is flooded as well as the pit.

In addition, the lower end of the hoisting machine 4 is above the floor of the car when the standard floor of the car is stopped and the upper end is below the ceiling of the car.
If the 5's are arranged at almost the same height, the inspection according to the elevator operation management will be the easiest.

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 bird's eye view of the fourth embodiment of the elevator apparatus of the present invention, FIG. 2 is a plan view, and FIGS. 9 and 10 show essential parts. 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.

Since the hoisting machine 4 is attached below the beam 10 that supports the return wheel 5, the tension of the rope 3 causes the hoisting machine 4 to move.
The force acting on the beam 10 is canceled by the force acting on the sheave 4a in the upward direction and the force acting on the sheave 4 in the downward direction, so that 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, since the hoisting machine 4 and the return wheel 5 are attached to the same beam 10, and the beam 10 is attached to the car guide rail 6 and the counterweight guide rail 7 via the elastic body 16. The vibrations of the hoisting machine 4 and the return wheel 5 can be effectively insulated.

Furthermore, 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 of different sizes can be used to suspend the car 12 and the counterweight. Even if the positional relationship between the vehicle 13 and the hoistway changes, the same design can be used.

Example 5. An embodiment of the present invention relating to an elevator apparatus will be described with reference to FIG.

FIG. 11 is a fifth embodiment of the elevator device according to the present invention.
Indicates. 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 synchronously, the driving capacity can be improved, and a large-capacity elevator device can be supported.

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 hoisting machine is small on the plane projection plane of the hoistway, 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 hoisting machine is small, damage to the rope can be prevented.

Further, since the lower end of the hoisting machine is arranged so as to be above the floor of the car when the lowest floor of the hoistway is stopped, the hoisting machine will not be damaged even if the pit is flooded.

Further, since the hoisting machine is attached to the lower side of the beam supporting the first return wheel, the force acting on the guide rail can be reduced. Further, the position adjustment of the return wheel and the hoisting machine is easy, which is convenient for inspection.

Furthermore, since the beam has a vibration-proof structure, vibration between the hoisting machine and the return wheel can be effectively insulated.

Furthermore, since the hoisting machine and the return wheel are at least partially overlapped with each other on the projection plane of the plane cross section of the hoistway, the hoistway space can be reduced.

Industrial Applicability As described above, the elevator device according to the present invention is
A counterweight that moves up and down in a hoistway and moves in the opposite direction of the car, a car guide rail that restricts the horizontal movement of the car, and a counterweight that restricts the horizontal movement of the counterweight. Guide rail, a rope for suspending the car and the counterweight, and a hoisting machine for hoisting the car and the counterweight through the rope around which the rope is wound in the hoistway. Suitable for use in elevators.

[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 plan view of the elevator device according to the first and fourth embodiments of the present invention.

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

FIG. 4 is a bird's-eye view of the elevator apparatus according to the second embodiment of the present invention.

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

FIG. 6 is a bird's-eye view of the elevator apparatus according to the 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 a bird's eye view of the elevator apparatus according to the 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 a bird's-eye view of the elevator apparatus according to the 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.

─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Takenobu Honda 2-3-3 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation (72) Inventor Shigeki Yamakawa 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric (56) References JP 62-51586 (JP, A) JP 11-246145 (JP, A) JP 2001-72352 (JP, A) JP 2000-86129 (JP, A) JP 2000-153973 (JP, A) JP 11-11117 (JP, A) JP 5-213560 (JP, A) JP 2001-518434 (JP, A) JP 2877745 (JP, B2) International Publication 99/016694 (WO, A1) (58) Fields investigated (Int.Cl. 7 , DB name) B66B 7/ 00-11/08

Claims (3)

(57) [Claims]
1. A counterweight that moves up and down in a hoistway, and a counterweight that moves up and down in the opposite direction of the car, a car guide rail that restricts the horizontal movement of the car, and a horizontal movement of the counterweight. A guide rail for a counterweight that regulates the rope, a rope that suspends the basket and the counterweight, a sheave around which the rope is wound, and a motor unit that drives the sheave. And a hoisting machine that raises and lowers the car and the counterweight through the rope by rotating the sheave, and is arranged in the hoistway, and the rope is wound around to change the direction of the rope. An elevator apparatus having a first return wheel for rotating, and a beam supporting the first return wheel, wherein the hoisting machine is a rotary shaft of the sheave. The outer dimension in the direction is smaller than the outer dimension in the direction perpendicular to the rotation axis, the counterweight and the basket are arranged apart from each other in the plane cross section of the hoistway, and when the lowest floor of the hoistway is stopped. Is located above the floor of the car and below the car ceiling when the top floor is stopped, and is attached to the beam from below, and the first return wheel is of the hoist in a plane cross section of the hoistway. An elevator device characterized by overlapping at least a part.
2. A car for moving up and down in a hoistway, a counterweight that moves up and down in the opposite direction of the car, a car guide rail for restricting the horizontal movement of the car, and a horizontal movement of the counterweight. A guide rail for a counterweight that regulates the rope, a rope that suspends the basket and the counterweight, a sheave around which the rope is wound, and a motor unit that drives the sheave. And a hoisting machine that raises and lowers the car and the counterweight through the rope by rotating the sheave, and is arranged in the hoistway, and the rope is wound around to change the direction of the rope. In the elevator apparatus, the hoisting machine has an outer dimension in a rotation axis direction of the sheave perpendicular to the rotation axis. Smaller than the outer dimension in the direction, the counterweight and the basket are arranged apart in the plane cross section of the hoistway, and the hoistway is above the car floor when the bottom floor is stopped and when the top floor is stopped. The first return wheel is located below the car ceiling, the first return wheel is located above the hoisting machine, and is arranged so as to overlap at least a part of the hoisting machine in the plane cross section. The rotation surface is inclined with respect to the wall surface of the hoistway adjacent thereto.
3. The elevator apparatus according to claim 1, wherein the beam has a vibration isolation structure.
JP2001543429A 1999-12-06 1999-12-06 Elevator equipment Expired - Fee Related JP3489578B2 (en)

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CN1334779A (en) 2002-02-06
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CN1515483A (en) 2004-07-28
DE69942377D1 (en) 2010-06-24
EP1378478B1 (en) 2006-08-30
WO2001042121A1 (en) 2001-06-14
EP1151955B1 (en) 2007-06-27
DE69935620D1 (en) 2007-05-03
KR20020006515A (en) 2002-01-19
CN1231411C (en) 2005-12-14
CN1285498C (en) 2006-11-22
DE69936399D1 (en) 2007-08-09
EP1378479B1 (en) 2007-03-21
EP1378479A2 (en) 2004-01-07
EP1378479A3 (en) 2004-01-21
EP1378478A2 (en) 2004-01-07
EP1151955A4 (en) 2003-05-21
EP1801062A1 (en) 2007-06-27
DE69935620T2 (en) 2007-12-06
DE69936399T2 (en) 2008-02-28
EP1378478A3 (en) 2004-01-21

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