JP3225811B2 - Elevator equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a counterweight,
The present invention relates to a drive motor including a rotor having a groove around which a rope is wound and an elevator equipped with a brake device.

[0002]

2. Description of the Related Art In recent years, there has been disclosed a linear motor elevator in which a machine room of a rope type elevator is eliminated in order to eliminate a machine room of an elevator provided at an upper portion of a hoistway due to a problem such as sunshine. For example, Japanese Patent Laid-Open Publication No. Hei 2-
FIG. 19 shows an outline of an elevator apparatus in which an armature of a cylindrical linear motor is incorporated in a conventional counterweight described in 159959 “Linear motor supporting structure of a linear motor drive type elevator”. In the drawing, reference numeral 1 denotes an elevator car which is guided by a car guide rail 2 in a hoistway and moves up and down; 3 denotes a rope connected at one end to the car 1 and the other end is returned to a counterweight 5 via wheels 4a and 4b; Is a counterweight guide rail that guides the counterweight 5, 7
Is a cylindrical linear motor, 8 is an armature functioning as a primary conductor of the cylindrical linear motor 7, 9 is penetrating the armature 8,
The column functions as a secondary conductor of the cylindrical linear motor 8. Reference numeral 10 denotes an upper fixed portion of the column 9, reference numeral 11 denotes a lower fixed portion, and reference numeral 12 denotes a brake provided on the counterweight 5. As described above, in the elevator using the cylindrical linear motor, the hoisting machine at the upper part of the hoistway becomes unnecessary because the linear motor incorporated in the counterweight moves up and down, and the return vehicle is laid on the upper part of the hoistway. It has a configuration. In the elevator using the cylindrical linear motor, the column is supported only up and down, so that the number of floors to be raised and lowered was limited.

[0003] As another example of an elevator using a double-sided flat plate linear induction motor in which such a limitation on the number of floors is eliminated, the proceedings of the 1993 IEEJ National Convention S.S. 1
0-3-1 "Linear drive AC drive application (1)
FIG. 20 shows an elevator applying the double-sided flat plate linear induction motor described in FIG.
Shown in In the drawing, 13 is a double-sided flat plate motor provided on one side of the counterweight 5, 14 is a guide rail brake device provided on another side of the counterweight 5, and 15 is a 2 pinched by the linear induction motor 13. It is a conductor that is a secondary conductor. The same reference numerals as those in FIG. 19 denote the same parts, and a description thereof will be omitted.

[0004]

The linear motor elevator described above has a great advantage in that a machine room above the hoistway is not required. On the other hand, since the secondary conductor needs to be arranged over the entire length of the hoistway. However, there is a problem in that the laying work cost is high because the secondary conductor is arranged over the entire length of the hoistway, and the installation accuracy is required. Also, it is necessary to increase the gap between the armature mounted on the counterweight and the secondary conductor, so that the motor efficiency is poor. In order to produce the required thrust, the outer shape of the motor and the capacity of the drive inverter are increased. There was a problem.

[0005] To solve such a problem,
There is one described in JP-A-7-137963. As shown in FIG. 21, an elevator drive motor 70 is disposed in the counterweight 5, the elevator drive motor has two stator windings and at least one disk-shaped rotor, and the traction sheave is The rotor is provided, and a brake is provided between the side plate of the counterweight and the rotor.

However, the space where the brake is installed is narrow, and there is a problem in the braking force, maintenance, and the like. In addition, since the primary stator and the secondary rotor have windings, it is difficult to reduce the thickness, and traction is difficult. The structure of the sheave is weak,
There were problems such as difficulty in mounting emergency rescue equipment.

The present invention has been made to solve the above problems, and is easy to install, the drive motor has a strong structure, is small and thin, and the brake device has high performance.
It is another object of the present invention to obtain an elevator device that can be rescued in an emergency.

[0008]

[0009]

[0010]

[0011]

An elevator according to the present invention is provided.
Data unit includes a first sheave and a second hooked sheave and wound rope disposed in the elevator shaft which is disposed above the elevator shaft, one end of the rope fixed A suspension car disposed between the car-side fixing member at the upper part of the elevator hoistway and the first sheave, and suspended via the rope, and an elevator car connected to the suspension car The other end of the rope is fixed, and winding means disposed below the elevator shaft, and the first sheave and the second sheave are disposed between the first sheave and the second sheave. And a drive motor having a groove provided on the counterweight and around which the rope is wound, and the elevator car is wound by winding the rope by the winding means when an abnormality occurs. It is to move up and down. Embodiment 4 (FIG. 12) is an embodiment corresponding to the present invention.

[0012] A rope wound around a first sheave and a second sheave disposed above the elevator hoistway and disposed in the elevator hoistway, and one end of the rope. The other end of the rope is fixed together with the elevator car, and the winding means provided below the elevator hoistway is provided between the first sheave and the second sheave. is a suspending been counterweight through the rope, and a drive motor having a groove in which the rope is provided on the counterweight is wound, by winding the rope by the winding means at the time of abnormality The above elevator
It is intended for raising and lowering the squirrel data. Embodiment 4 (FIG. 13) is an embodiment corresponding to the present invention.

[0013]

Further, a first rope wound around a first sheave provided above the elevator hoistway and disposed in the elevator hoistway, and connected to one end of the first rope. An elevator car, a counterweight connected to the other end of the first rope, winding means provided at a lower portion of the elevator shaft, and a second means provided at an upper portion of the elevator shaft. A continuous second rope wound around the sheave and the winding means, a drive motor provided on the counterweight and having a groove around which the second rope is wound, and a rotor of the drive motor. Brake equipment to control
And a location, usually by lifting the elevator car by moving the counterweight by driving the second rope by the driving motor, the shake at the time of abnormality
The rotor of the drive motor is braked by the brake device
Then, the elevator car is moved up and down by driving the second rope by the winding means to move the counterweight. Embodiment 4 (FIG. 14) is an embodiment corresponding to the present invention.

[0015]

[0016]

[0017]

[0018]

[0019]

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1 In this embodiment, a drive motor having a rotor in which a thin disk-shaped rope is wound and a rotor having a secondary conductor is mounted instead of the armature of a linear motor provided in a conventional counterweight. The driving force drives the elevator car. Less than,
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a configuration diagram of an elevator apparatus according to the present invention, and FIG. 2 is a perspective view of the elevator apparatus in which a return car on the car side of the elevator is mounted behind the elevator car. In the figure, 16 is a counterweight, 17 is a drive motor that drives the rope 3 around the rope 3, and 18 is a brake that clamps both side surfaces of a flange protruding from the outer periphery of the rotor of the drive motor 17 by spring pressure. Brake device. 19 is a fixing member for fixing the rope on the counterweight side to the upper portion of the hoistway, 20 is a power line for driving a drive motor laid on the counterweight,
It is an elevator cable including a brake drive line, a speed, an encoder line for speed feedback for position detection, or a signal in a car. Reference numeral 21 is a junction point on the building side of the elevator cable. 22 is a relay point below the elevator cable car. Reference numeral 23 denotes an elevator control panel including a drive inverter of a drive motor laid on the counterweight. Reference numeral 24 denotes a hanging wheel provided on the elevator car 1, and reference numeral 25 denotes a fixing member at the other end of the rope 3 provided at the upper part of the hoistway. Other symbols are conventional linear motor elevator devices.
It is the same as 0 and 21, and the description is omitted. In FIG. 1, the counterweight, the guide rail and the rollers are omitted. In FIG. 2, the suspension wheel 24 attached to the elevator car 1 is provided at a lower portion of the elevator car 1 on the counterweight 16 side, and the sheave 2 provided at the upper portion of the hoistway is provided at the upper portion of the counterweight 16 at 1 Has become one.

Next, the operation will be described. Counterweight 1
For example, when the drive motor 17 provided at 6 rotates clockwise in FIG. 1, the rope length at the fixed point 19 side of the rope 3 becomes substantially short, and as a result, the counterweight 16 rises. Therefore, the rope 3 on the return wheel 4b side is sent to the car side, and as a result, the car descends. Conversely, when the drive motor 17 rotates counterclockwise, the rope length at the fixed point 19 side of the rope 3 becomes substantially longer, and as a result, the counterweight 16 descends, and the rope 3 at the return wheel 4b becomes the counterweight 16. To the side, and as a result the car rises. The brake device 18 is released before the drive motor 17 rotates, is activated after the drive motor 17 is stopped, and stops and holds the elevator.
The brake device for a guide rail 14 may be used together with the brake device 18, or one of the brake device 18 and the brake device for a guide rail 14 may be used. In the present embodiment, the roping is 2: 1 on both the car side and the counterweight side, and the advance of the rope 3 of the elevator car 1 part and the counterweight 16 part is the same. Also, the elevator car 1 and the counterweight 16 have the same up-and-down stroke, and the counterweight 16 moves over the entire length of the up-and-down stroke.

Next, the operation principle will be described. T ₁ the tension of each section of the rope 3 as shown in FIG. _{1, T 2, T 3,} T 4
The weight of the car is Wc, the weight of the load is W, the weight of the counterweight is Wb (the weight of the frame of the counterweight + the weight of the drive motor + the weight of the brake), and the rope and the sheave of the drive motor do not slip. Assuming that the traction force is F (= drive motor torque T / drive motor rotation radius r), T ₁ = T ₂ = (W + Wc) / 2 T ₃ = (Wb / 2) ± F (± depends on the rotation direction of the drive motor) .) The reaction force of the drive motor is received by the rollers and rails of the counterweight. Further, since T ₄ = (Wb / 2) ± F, T ₃ + T ₄ = Wb Therefore, T ₃ , T ₄ ≦ Wb, and when T ₂ > T ₃ , the car descends and T ₂ = T _In the case of ₃ , the car stops, and in the case of T ₂ <T ₃ , the car rises. Therefore, by setting T ₂ = (W + Wc) / 2 <Wb, the elevator car is raised and lowered. Here, specific examples of the operating conditions are shown in Table 1.

[0023]

[Table 1]

As shown in Table 1, the conditional expression W + Wc / 2 <W
b can be easily established.

Next, the configuration of the drive motor and the brake device described above will be described in detail. FIG. 3 is a cross-sectional view showing the configuration of the drive motor 17 and the brake device 18, and uses a thin and flat drive motor obtained by rounding a single-side linear motor into a disk shape. FIG. 4 is a detailed configuration diagram of a pinch type brake restrained by a brake spring pressure and released by an electromagnet, and shows a state in which the brake is released by being excited. In FIG. 3, 31 is a counterweight 1
The shaft 32 of the drive motor fixed to 6 is made of iron or the like, is composed of a secondary yoke which is a rotor of the thin and flat drive motor, and has a rope groove 33 around the yoke for winding a rope. Are provided as a magnetic path of the drive motor and a sheave with traction and traction for transmitting thrust to the rope, and serve as a hoist. Reference numeral 34 denotes a secondary conductor integrated with the secondary yoke 32. In the case of an induction machine, the secondary conductor is made of aluminum, copper, or the like. Since the secondary side of this drive motor is configured to penetrate through the bearing 35 to the motor shaft 31 fixed to the counterweight, the secondary side of the drive motor rotates around the shaft 31 of the drive motor. Configuration. 36 is a yoke of the primary armature fixed to the shaft 31 of the drive motor. 37 is a primary armature winding.

Numeral 38 denotes a brake collar provided on the secondary side yoke 32, numeral 39 denotes a pinch type brake for holding the brake collar 38 therebetween, and numeral 40 denotes a frame provided on the counterweight 16. is there. In FIG. 4, reference numeral 41 denotes an electromagnet coil. Reference numeral 42 denotes a spring that generates a force for sandwiching the braking collar 38 by the brake shoe 43 when the excitation of the electromagnet 41 is interrupted. 44 is an electromagnet cover 45, an iron core 46 on the coil side of the electromagnet, and the brake arm 4.
7 is a shaft pin for connecting 7. Reference numeral 48 denotes a shaft pin for holding the brake sandwiching type brake 39 on the counterweight 16. 2
The set of brake arms 47 restrains and releases the brake collar 38 about the shaft pin 48.

Next, the operation will be described. The drive motor 17 of the present embodiment is a single-sided linear motor that is rounded in a disk shape. The operating principle is the same as that of the linear motor. When the secondary yoke 32 rotates, the secondary yoke 32
The counterweight 16 is wound up by a rope (not shown) wound around a rope groove 33 provided on the outer periphery of the counterweight.
By sandwiching a brake collar 38 provided on the secondary yoke 32 with a sandwiching brake 39, the secondary yoke 3
2 is braked, and the lifting and lowering of the counterweight 16 is stopped. When the excitation of the coil 41 of the electromagnet is interrupted by the spring 42 shown in FIG. 4, the sandwiching brake 39 causes the brake shoe 43 to sandwich the brim 37 for the brake to brake the rotation of the secondary yoke 32, By exciting the coil 41 of the electromagnet, the brake collar 38 is released from the brake shoe 43 and becomes rotatable.

In FIG. 3, L is the diameter of the drive motor, d1 is the thickness of the primary armature 35, and d2 is the thickness of the secondary armature 32. g is the primary of the drive motor,
This is the gap between the secondary sides. d (= d1 + d2 + g) is the thickness of the entire drive motor. Since the flat motor according to the present embodiment is mounted on the counterweight 16, the thickness d of the drive motor needs to be small, that is, the iron thickness of the primary and secondary yokes needs to be reduced. In order to generate the required motor torque as a multi-pole drive motor, the diameter L of the drive motor is larger than that of a normal drive motor.

However, in the direct drive motor configured as described above, the primary and secondary yokes are assembled on the same shaft as compared with a linear motor that is driven linearly by installing a secondary conductor over the entire length of the hoistway. Therefore, the gap g
Can be reduced, and the secondary side can have the same configuration as a normal rotary drive motor.
A highly efficient and compact drive motor configuration can be achieved.
Further, in order to increase the thrust, a ladder structure (an iron piece is fitted into a ladder-like aluminum alloy secondary conductor to improve the magnetic permeability structure) can be easily realized as in a normal induction motor. Therefore, the thickness of the counterweight can be reduced as in the conventional linear motor elevator.

Further, since the load applied to the sheave portion of the drive motor is directly applied to the bearing 35, the strength against the load can be increased.

As shown in FIG. 5, a permanent magnet 49 is attached to the secondary side instead of the secondary conductor, and a synchronous motor which is practically impossible because a permanent magnet is required for the entire length of the hoistway in the linear motor. By using an electric motor, a more efficient and smaller motor configuration can be achieved as compared to an induction motor configuration. FIG. 5 shows an eight-pole configuration in which the fixed temporary side is a three-phase winding.

As the brake, either the brake device 18 of the drive motor 17 or the guide rail brake 14 may be used, or both may be used to enhance the performance of the brake.

With the above construction, no machine room is required above the hoistway, no secondary conductor is required over the entire length of the hoistway, installation is easy, and the drive motor has a strong structure. A highly efficient, small and thin type can be achieved, and the performance of the brake can be enhanced.

Embodiment 2 Hereinafter, another embodiment of the present invention will be described with reference to the drawings. In the present embodiment, the hanging wheel 24 and the fixing member 25 provided in the car 1 of FIG. 1 showing the first embodiment are omitted, and the rope 3 is directly fixed to the car 1. FIG. 6 is a configuration diagram of the elevator apparatus. The same reference numerals as those in FIG. 1 showing the first embodiment and FIG. 20 showing the conventional example denote the same parts, and a description thereof will be omitted.

Next, the operation will be described. As in the first embodiment, the operation of the rope 3 by the drive motor 17 causes the elevator car 1 to move up and down as in the first embodiment. In this case, the lifting stroke of the counterweight 16 is half of the lifting process of the elevator car 1.

As the brake, either the brake device 18 of the drive motor 17 or the guide rail brake 14 may be used, or these may be used together to enhance the performance of the brake.

With the above configuration, no machine room is required above the hoistway, no secondary conductor is required over the entire length of the hoistway, installation is easy, and the drive motor has a strong structure. A highly efficient, small and thin type can be achieved, and the performance of the brake can be enhanced.

Embodiment 3 Hereinafter, another embodiment of the present invention will be described with reference to the drawings. In this embodiment, the car 1
And the rope for suspending the counterweight 16 are different from each other. FIG. 7 is a configuration diagram of an elevator apparatus according to the present embodiment.
6 is a fixing member for fixing the rope 3 to the counterweight 16;
A rope 7 is fixed at one end to a fixing member 28 at the upper part of the hoistway, the other end is fixed to a fixing member 29 at the lower part of the hoistway, and is wound around a drive motor 17 provided on the counterweight 16. . The same reference numerals as those in FIG. 1 of the first embodiment denote the same parts, and a description thereof will be omitted.

Next, the operation will be described. Embodiment 1
Similarly, by rotating the drive motor 17 laid on the counterweight 16, the counterweight 16 is raised and lowered, and the elevator car 1 is raised and lowered. The capacity of the drive motor laid on the counterweight 16 only needs to have a capacity for driving the difference between the weight of the car in consideration of changes in passengers and the weight of the counterweight 16.

Next, FIG. 8 shows details of the method of winding the counterweight rope. FIG. 8 (a) separates the rope into a rope 27a connected to a fixing member 28 at the upper part of the hoistway and a rope 27b connected to the fixing member 29 at the lower part of the hoistway. It is wound around the secondary yoke 32 of the rotor of the motor 17. FIG. 8B
Is a rope 27 wound around the secondary yoke 32 of the rotor of the drive motor 17 provided on the counterweight 16. 8 (c), (d) and (e) show the rope 27 with the secondary yoke 32 of the rotor of the drive motor 17 provided on the counterweight 16 and the return wheel 30 provided on the counterweight 16.
This is a mechanism for transmitting thrust to the counterweight 16 via the. FIG. 8E is a detailed view of the rope 27 shown in FIG. Here, the return wheel 30 is different from the drive motor, but the two drive motors may be used as secondary yoke of the second motor. In this case, the required torque per vehicle is reduced, and downsizing can be achieved. In the configuration shown in FIGS. 8A and 8B, the rope 27 is wound in a spiral shape, so that there is a disadvantage that the position of the rope 27 moves in the axial direction of the drive sheave 17a as it moves up and down. 8 (c), (d), (e)
This configuration does not have this disadvantage.

As the brake, either the brake device 18 of the drive motor 17 or the guide rail brake 14 may be used, or these may be used in combination to enhance the performance of the brake.

As described above, since the rope for suspending the car and the counterweight and the drive rope are separately provided, a rope suitable for each rope can be applied. In addition, the length of each rope is short, and installation such as replacement work is easy.

FIG. 9 shows another configuration of FIG. FIG.
The upper return wheel 51a, the lower return wheel 51b, and the return wheel 51C below the counterweight 16 are added to the configuration of
The rope 27 is provided with tension applied between each of the upper fixing point 28, the drive motor 17, the upper turning wheel 51a, the lower turning wheel 51b, the turning wheel 51C, and the lower fixing portion 29. In this configuration, the rope 27 is
It can be wound more than 80 degrees for easy traction.

FIG. 10 shows the driving motor 1 having the configuration shown in FIG.
7 and the return wheel 51 are turned upside down, and have the same effect as the configuration of FIG.

FIG. 11 shows the structure of the deflecting vehicle 4 shown in FIG.
c and 4D, the traction can be increased from FIGS. 7 and 10 by increasing the contact angle of the rope wound around the hanging wheel depending on the position of the deflector wheels 4C and 4D, and from FIGS. 9 and 10. It is difficult to remove, but the configuration can be simplified.

Embodiment 4 FIG. In this embodiment, a manual winding device for rescue is attached to the elevator device described in the first to third embodiments. 12 and 13 show the first and second embodiments, in which the return wheel 51 is provided instead of the rope fixing member 19 at the upper part of the hoistway of the elevator apparatus shown in FIGS. 1 and 6 and the rope 3 is provided at the lower part of the hoistway. Manual winding device 5
Fix to 2. The manual winding device 52 includes a drum 52a that winds the rope 3 and has a detent (not shown) or the like, and a manual handle 52b provided via a speed reducer (not shown) having a large reduction ratio. It is a thing. The manual winding device 52 is generally prevented from rotating by a detent or the like. However, when the elevator device stops abnormally, when the brake device 18 is not operated even if the brake device 18 is released, the detent is removed and the guide brake device is removed. 14 is kept operated, the rope 3 is wound by the manual handle device 52,
Or rewind and rescue.

In FIG. 14, a return wheel 51 is provided instead of the fixing member 28 at the upper part of the hoistway of the second rope 27 of the elevator apparatus shown in FIG. 7 of the third embodiment, and the fixing member 29 at the lower part of the hoistway is provided. Instead, a manual winding device 52 is attached. The second rope 27 is connected to a return wheel 51 and a manual winding device 52 via a drive motor 17 laid on the counterweight 16. 12 and 13, the manual winding device 52 is normally prevented from rotating by a detent, but does not operate even when the brake 17 provided on the counterweight 16 is released when the elevator device stops abnormally. In some cases, the rotation stopper is removed, and the rope 27 is wound up by the manual handle 52 and rescued.

In this embodiment, the manual winding device of the manual winding is shown, but a winding device using a drive motor may be used.

As described above, when an abnormality occurs in the elevator apparatus, rescue can be performed safely.

Embodiment 5 Hereinafter, another embodiment of the drive motor provided on the counterweight will be described with reference to the drawings. In the present embodiment, two sets of armature windings on the primary side and secondary conductors on the secondary side are provided. FIG. 15A is a perspective view of a driving motor, and FIG.
(B) is a sectional view of the drive motor, and shows the motor shaft 3.
Primary armature windings 36a and 36b having primary conductors 37a and 37b are provided on both side surfaces perpendicular to the first armature 1 and opposed to the primary armature windings 36a and 36b, respectively. Secondary yokes 32a, 32b having secondary conductors 34a, 34b such that the magnetic path of
And the secondary yokes 32 a and 32 b are connected by a connecting member 61. The outer periphery of the secondary yokes 32a and 32b is a rope groove 3 having traction around the rope.
3a. A secondary side yoke 32a is provided with a brake collar 38. 35a and 35b are bearings for rotatably mounting the secondary yokes 32a and 32b on the motor shaft 31. FIG. 15 (b) is basically the same as the configuration of FIG. 15 (a), except that the rope groove 33 having the traction for rope is connected to the connecting member 61.
Are provided on the outer periphery of the. FIG. 15C shows FIG.
(A), the primary and secondary sides of the flat motor shown in FIG. 15 (b) are reversed, and two sets of primary yokes 36a,
The secondary yoke 32 is mounted between 36b. In this configuration, the load applied to the drive motor is not applied to the motor gap and is directly applied to the bearing, so that the motor gap can be narrow.

As described above, the drive motor has a strong structure,
It can be highly efficient, small and thin.

Embodiment 6 FIG. In the fifth embodiment, the drive motor in which the primary winding is wound in a direction perpendicular to the motor shaft is shown, but in the present embodiment, the primary winding wound in parallel with the motor shaft is fixed similarly to the normal motor. A drive motor using a drum-shaped thin outer rotor motor wound on a primary yoke as a child will be described. FIG.
6A is a perspective view of the drive motor, and FIG. 16B is a sectional view. In the figure, reference numeral 62 denotes a secondary yoke, which is a cylindrical rotating portion connected to the drive sheave 32, and 63 denotes a secondary conductor attached to the inner surface of the secondary yoke 62 in parallel with the motor shaft 31. It is. 64 is the motor shaft 3
1 is a primary yoke support member that supports a primary yoke 65 that is attached to and parallel to the motor shaft 31 so as to be in close proximity to the secondary conductor 63. As described above, in the outer low motor, the magnetic path of the gap between the primary and the secondary is parallel to the rotation axis. Note that the same reference numerals as in FIG. 2 of the first embodiment denote the same components, and a description thereof will be omitted.

The operation is the same as in the fourth embodiment. d3 is the thickness of the drive unit. As described above, it is necessary to reduce the thickness in this direction. Therefore, the drive motor according to the present embodiment also needs to be configured as a multi-pole motor having a large diameter in the direction of L and a large circumference to generate the required thrust. The configuration of this drive motor also has a narrow motor gap because the load applied to the drive motor is not applied to the motor gap because the rope groove for hanging the rope is not on the motor gap, and the load is applied directly to the bearing. Can be.

FIG. 17 shows another driving motor using a drum-shaped thin outer rotor motor, which is slightly modified from FIG. FIG. 17 (a) rope groove 3 hanging rope
3 is formed on the secondary yoke above the gap of the outer rotor motor, and is thin. In the figure,
A rope groove 33 is provided on the outer periphery of a cylindrical connecting yoke 61 for connecting two sets of secondary yokes 32a and 32b facing each other.
Is provided. Between the secondary yokes 32a and 32b, a primary yoke to which a primary coil 37 parallel to the motor shaft 31 and opposed to the secondary conductor is mounted is mounted. FIG. 17B shows a configuration in which a rope groove 33 for hanging a rope is provided in a portion corresponding to the bearings 35a and 35b on the outer circumference of the two sets of secondary yokes 32a and 32b. Since the configuration of these drive motors is such that the rope groove for hanging the rope is not on the motor gap and the load applied to the motor is directly applied to the bearing without being applied to the motor gap, the motor gap can be narrow. Also in the case of this configuration, it is possible to use a permanent magnet for the secondary conductor portion 32 as in the configuration shown in FIG.

As described above, the drive motor has a strong structure,
It can be highly efficient, small and thin.

Embodiment 7 FIG. This embodiment combines the drive motors shown in FIG. 15B of the fifth embodiment and FIG. 17A of the sixth embodiment, and the drawings will be described.
FIG. 18A is a cross-sectional view of the drive motor according to the present embodiment, and FIG. 18B is a winding diagram of a primary yoke. FIG.
18A, reference numeral 67 denotes a primary yoke fixed to the motor shaft 31. Reference numeral 68 denotes a winding wound in an annular shape as shown in FIG. 18B, and the outer periphery of the primary yoke parallel to the motor shaft 31 and the motor. It is wound around the outer periphery of the primary yoke parallel to the shaft 31 and on both sides of the primary yoke perpendicular to the motor shaft 31. Reference numeral 69 denotes a U-shaped secondary conductor provided on the secondary yokes 32a and 32b and the secondary connecting yoke so as to surround three surfaces of the winding 68. With this configuration, a thrust generating portion can be formed on three surfaces of the U-shaped secondary conductor 69, so that the effective winding area of the primary winding is large and the effective area of the secondary 4 side is also large, so that the width d4 is small. Even so, the diameter L can be made smaller than the configuration shown in FIG. 17 of the sixth embodiment.

As described above, the drive motor has a strong structure,
Furthermore, a highly efficient, small and thin device can be obtained.

[0058]

[0059]

[0060]

[0061]

As described above, according to the present invention, it is wound around the first sheave and the second sheave disposed above the elevator hoistway, and is arranged in the elevator hoistway. A hanging rope which is disposed between the first sheave and a car-side fixing member at an upper part of the elevator hoistway to which one end of the rope is fixed, and which is suspended via the rope. A car, an elevator car connected to the suspension sheave, and the other end of the rope fixed thereto, winding means disposed below the elevator hoistway, the first sheave, and the second sheave. A balance weight suspended between the sheave and the rope, and a drive motor provided on the balance weight and having a groove around which the rope is wound; Winding the rope by Since those for raising and lowering the car, when an abnormality occurs in the elevator system, it is possible to perform rescue safely.

Further, a rope wound around a first sheave and a second sheave arranged above the elevator hoistway and arranged in the elevator hoistway, and one end of the rope The other end of the rope is fixed together with the connected elevator car, and a winding means disposed below the elevator hoistway is disposed between the first sheave and the second sheave. And a counterweight suspended via the rope,
A drive motor having a groove on which the rope is wound and provided on the counterweight, and the elevator car is raised and lowered by winding the rope by the winding means in the event of an abnormality. In that case, the rescue can be performed safely.

[0063]

Further, a first rope wound around a first sheave provided above the elevator hoistway and disposed in the elevator hoistway, and connected to one end of the first rope. An elevator car, a counterweight connected to the other end of the first rope, winding means provided at a lower portion of the elevator shaft, and a second means provided at an upper portion of the elevator shaft. A continuous second rope wound around the sheave and the winding means, a drive motor provided on the counterweight and having a groove around which the second rope is wound, and a rotor of the drive motor. Brake equipment to control
And a location, usually by lifting the elevator car by moving the counterweight by driving the second rope by the driving motor, the shake at the time of abnormality
The rotor of the drive motor is braked by the brake device
Since the elevator car is moved up and down by driving the second rope by the winding means to move the counterweight, it is possible to safely perform rescue when an abnormality occurs in the elevator apparatus. it can.

[0065]

[0066]

[0067]

[0068]

[0069]

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an elevator apparatus showing one embodiment of the present invention.

FIG. 2 is a perspective view of an elevator apparatus according to one embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating a configuration of a drive motor and a brake device illustrated in FIG.

FIG. 4 is a detailed configuration diagram of the brake device shown in FIG. 3;

5 is a configuration diagram of a permanent magnet attached to a secondary side of the drive motor shown in FIG.

FIG. 6 is a configuration diagram of an elevator apparatus according to another embodiment of the present invention.

FIG. 7 is a configuration diagram of an elevator apparatus according to still another embodiment of the present invention.

FIG. 8 is an explanatory diagram of a method for winding the rope of the drive motor shown in FIG. 7;

FIG. 9 is a configuration diagram of an elevator apparatus according to still another embodiment of the present invention.

FIG. 10 is a configuration diagram of an elevator apparatus according to still another embodiment of the present invention.

FIG. 11 is a configuration diagram of an elevator apparatus according to still another embodiment of the present invention.

FIG. 12 is a configuration diagram of an elevator apparatus including a manual winding device in the elevator apparatus of FIG. 1;

13 is a configuration diagram of an elevator apparatus provided with a manual winding device in the elevator apparatus of FIG.

14 is a configuration diagram of an elevator apparatus provided with a manual winding device in the elevator apparatus of FIG. 7;

FIG. 15 is a sectional view showing a configuration of a drive motor according to still another embodiment of the present invention.

FIG. 16 is a sectional view showing a configuration of a drive motor according to still another embodiment of the present invention.

FIG. 17 is a cross-sectional view showing a configuration of a drive motor showing a modification of the drive motor shown in FIG.

FIG. 18 is a sectional view showing a configuration of a drive motor according to still another embodiment of the present invention.

FIG. 19 is a perspective view of an elevator using a conventional cylindrical linear motor.

FIG. 20 is a perspective view of an elevator using a conventional flat plate linear motor.

FIG. 21 is a configuration diagram of a conventional elevator device.

[Explanation of symbols]

1 elevator car, 2 car guide rails, 3 ropes, 4 return cars, 5 counterweights, 6 counterweight guide rails, 7 cylindrical mover, 8 cylindrical linear motor,
9 columns, 13 double-sided flat plate linear induction motor, 14
Guide rail brake device, 16 counterweights, 1
7 drive motor, 18 brake device, 19 fixing member, 24 suspension wheel, 25 fixing member, 26 fixing member,
27 rope, 28 fixing member, 29 fixing member, 30
Return wheel, 31 motor shaft, 32 secondary side yoke, 33 rope groove, 34 secondary conductor, 35 bearing, 36 primary side armature yoke, 37 primary side armature winding, 38 brim for brake, 39 pinching brake ,
41 electromagnetic coil, 42 spring, 43 brake shoe, 49 permanent magnet, 51 return wheel, 52 manual winding handle device, 61 connecting member, 62 secondary yoke, 63
Secondary conductor, 64 Yoke support member, 64 Primary yoke.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-137963 (JP, A) JP-A-6-255959 (JP, A) JP-A-4-182293 (JP, A) JP-A-7-179 315718 (JP, A) Japanese Utility Model Showa 62-168078 (JP, U) Japanese Patent Publication No. 5-21830 (JP, B2) Japanese Patent Publication No. 56-22787 (JP, B2) International Publication 95/432 (WO, A1) ( 58) Field surveyed (Int. Cl. ⁷ , DB name) B66B 5/00-11/08

Claims (3)

(57) [Claims] 1. A rope wound around a first sheave and a second sheave disposed above an elevator hoistway and disposed in the elevator hoistway, and one end of the rope is A suspension wheel disposed between the car-side fixing member at the upper portion of the elevator hoistway and the first sheave, and suspended via the rope, and an elevator connected to the suspension wheel A car and a winding means provided at a lower portion of the elevator shaft, the other end of the rope being fixed, and provided between the first sheave and the second sheave, A counterweight suspended via a rope, and a drive motor provided on the counterweight and having a groove around which the rope is wound, and the elevator car is wound by winding the rope by the winding means when an abnormality occurs. Characterized by raising and lowering Elevator equipment. 2. A rope wrapped around a first sheave and a second sheave disposed above the elevator hoistway and disposed in the elevator hoistway, and one end of the rope. The connected elevator car and the other end of the rope are fixed, and winding means disposed below the elevator hoistway is disposed between the first sheave and the second sheave. A counterweight suspended via the rope, and a drive motor provided on the counterweight and having a groove around which the rope is wound, and winding the rope by the winding means when an abnormality occurs. An elevator apparatus characterized by raising and lowering the elevator car by means of: 3. A first rope wound around a first sheave provided above the elevator hoistway and disposed in the elevator hoistway, and connected to one end of the first rope. An elevator car, a counterweight connected to the other end of the first rope, a winding means provided at a lower portion of the elevator shaft, and a second means provided at an upper portion of the elevator shaft. A continuous second rope wound around the sheave and the winding means, a drive motor provided on the counterweight and having a groove around which the second rope is wound, and a rotor of the drive motor. A brake device for controlling the elevator car by raising and lowering the elevator car by driving the second rope by the drive motor to move the counterweight. Elevator apparatus characterized by raising and lowering the elevator car by the said winding means while braking the rotor of the drive motor to drive the second rope moving the counterweight.