JPH06286963A - Damping device for elevator - Google Patents

Abstract

PURPOSE:To simplify structure, to reduce the generation of noise, and to facilitate maintenance, in a device to damp vibration of a car by using an active damper. CONSTITUTION:The primary side 21 of a linear motor is fixed to an underfloor mounting plate 12 fixed to the lower part of a car 6. The secondary side 22 of the linear motor is arranged facing the primary side thereof and supporting to a car frame 3 by means of a support body 23. When lateral vibration of the car 6 is detected by a vibration sensor 15 attached to the lower part of the car 6, a control signal is outputted to the primary side of the linear motor by a controller 16. This constitution causes the generation of a thrust between the primary side and the secondary side 22 and the generation of a damping force between the car frame 3 and the car 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for suppressing vibration of a car floor of an elevator by an active damper.

[0002]

2. Description of the Related Art FIG. 16 is an equipment block diagram showing an elevator control device similar to that disclosed in, for example, Japanese Patent Publication No. 1-47377.

In the figure, (1) is a main rope, (2) is a compression coil spring, (3) is a car frame suspended from the main rope (1) via the coil spring (2), and (4) is Guide rollers attached to the four corners of the car frame (3) and guided by the guide rails (5), (6) a car room supported by the car frame (3) via a vibration-proof rubber (7), (8) Basket frame (3)
Motor fixed to the motor, (9) is connected to the motor (8) and is arranged laterally, is a threaded rod consisting of a ball screw supported by the bearing (10) and rotated by the motor (8), and (11) is a screw It is a movable body that is screwed into the rod (9) and is displaced in the axial direction by the rotation of the screw rod (9).

(12) is an underfloor mounting plate which is fixed below the floor of the cab (6) and projects downward, (13) is a linear motion bearing consisting of a fixed part and a movable part, and the fixed part is an underfloor mounting plate (12). ) Is attached to. (14) is an anti-vibration rubber fixed between the movable body (11) and the moving part of the linear motion bearing (13), and (15) is installed on the floor part of the cab room (6), and the lateral direction of the cab floor Vibration sensor to detect the vibration of (16)
It is installed near the floor of the car room (6) or the car frame (3),
A controller connected to the vibration sensor (15) and the motor (8).

The conventional elevator control device is constructed as described above, and the car frame (3) is guided to the guide rail (5) by the guide roller (4) rolling on the guide rail (5). It goes up and down. At this time, if the guide rail (5) is curved or there is a step at the seam,
The car frame (3) is vibrated via the guide roller (4), and the vibration is transmitted to the car room (6) through the antivibration rubber (7), and the car room (6) vibrates laterally.

At this time, the vibration sensor (15) outputs information such as the frequency and amplitude of the vibration of the car floor to the controller (16), and the controller (16) calculates this information and outputs a vibration control signal to the motor. Output to (8). The motor (8) rotates the screw rod (9) by generating torque according to the vibration control signal. Due to the rotation of the screw rod (9), the movable body (11) moves laterally, a damping force is generated between the car frame (3) and the car room (6), and the vibration of the car floor in the lateral direction is prevented. Actively reduce.

[0007]

In the conventional elevator control device described above, the motor (8) and the screw rod (9) arranged between the car frame (3) and the car room (6) are used. Actuator, movable body (11) that engages the screw rod (9), and controller
Since an active damper consisting of (16) and is installed,
There are the following problems.

(A) The structure is complicated, for example, a joint for connecting the motor (8) and the screw rod (9) is required, and a large space is required. (B) The noise generated from the screw rod (9) penetrates into the cab (6). (C) The screw rod (9) requires maintenance such as lubrication, but the presence of other equipment in the underfloor part of the car makes it difficult to perform maintenance because the space for maintenance personnel is small.

(D) The longitudinal displacement of the car room (6) with respect to the car frame (3) due to fluctuations in the load in the car room (6) causes
Although it is absorbed by 3), the damping force acts directly as a dynamic load in the direction (horizontal direction) orthogonal to the linear direction (longitudinal direction) of the linear bearing (13). Therefore, since the movable part of the linear motion bearing (13) is not displaced much in the linear motion direction, the rolling element (not shown) in the linear motion bearing (13) does not rotate and is used in a state where it is difficult to be lubricated. Therefore, the life of the linear motion bearing (13) deteriorates.

(E) The screw rod (9) does not rotate with a small load from the movable body (11) when the frictional resistance is large or the lead angle is small. When inactive, the moveable body (11) holds the car frame (3)
Is fixed, which deteriorates the vibration damping characteristics in the damping direction.

(F) In order to prevent deterioration of the anti-vibration characteristics in the damping direction due to (e) above, an actuator consisting of the motor (8) and the screw rod (9) is installed on the base (not shown). , This space is attached to the car frame (3) via an elastic body. However, in this case, the rigidity in the damping direction decreases, the stability of the control system decreases, and the control system easily oscillates.

(G) If the damping function of the controller (16) deteriorates and the cab (6) is largely displaced with respect to the car frame (3), they may collide and damage the equipment. is there.

(H) When it is desired to control the front, rear, left and right of the car floor, it is necessary to arrange actuators for each direction at the bottom of the car floor. In this case, the actuators must be arranged near the center line of the car floor in each direction so as not to induce vibration in the rotation direction of the car floor. However, if the actuators are arranged independently in the lateral direction, it may not be possible to arrange them under the floor.

(Vi) At low temperature, the grease applied to the screw rod (9) hardens and the rotation loss of the screw rod (9) increases, so that the small load from the movable body (11) does not cause the screw rod to rotate. The body (11) fixes the car frame (3), and the horizontal vibration isolation performance of the car floor with respect to the car frame (3) deteriorates.

(C) The elevator mainly generates vertical vibrations during acceleration / deceleration during traveling, and lateral vibrations become large during constant speed traveling.
Lateral damping is required during traveling at a constant speed, and if actuators are separately provided to suppress vibrations in both directions, it becomes difficult to dispose in space and expensive.

The present invention has been made to solve the above problems, and an object thereof is to provide the following elevator control device. (A) The first and second inventions of the present invention make it possible to reduce the space, noise, and maintenance. (A) Similarly, the third aspect of the invention makes it possible to prevent the life of the linear motion bearing from deteriorating. (C) Similarly, the fourth aspect of the present invention makes it possible to prevent deterioration of the vibration damping characteristics in the vibration damping direction when the active damper is not operating. (D) Similarly, the fifth aspect of the present invention enables the stability of the control system of the active damper to be improved.

(E) Similarly, the sixth and seventh aspects of the invention make it possible to prevent damage to the device due to a failure of the controller. (F) Similarly, the eighth aspect of the present invention enables vibration control in the front, rear, left, and right directions. (G) Similarly, in the ninth aspect of the invention, the vibration damping performance in the lateral direction does not deteriorate even at low temperatures. (H) Similarly, the tenth invention enables space-saving vibration control in both vertical and horizontal directions.

[0018]

According to a first aspect of the present invention, there is provided a vibration damping device for an elevator, wherein an actuator is composed of a linear motor, the primary side of which is a car frame or a cab, and the secondary side is It is attached to the other side of the car frame and the car room.

In the vibration damping device for an elevator according to the second aspect of the invention, the actuator is formed of a piezo element, and one end of the actuator is connected to the car frame side and the other end is connected to the car room side.

In the vibration damping device for an elevator according to the third aspect of the present invention, an actuator in which a movable body is engaged is mounted on a base, and the base is installed on a car frame via an elastic body to move the active damper. The body is directly connected to the cab, and a linear bearing is installed between the cab and the base so that the movable part can move laterally.One of the movable and fixed parts of the linear bearing is installed in the cab. In addition, the other is connected to the base.

Further, in the vibration damping device for an elevator according to the fourth aspect of the invention, when the active damper is operating, the cab and the movable body of the active damper are in a coupled state, and when the active damper is not operating, the cab is connected to the cab. A coupler is provided for disconnecting the movable body of the active damper.

In the vibration damping device for an elevator according to the fifth aspect of the invention, an actuator in which a movable body is engaged is mounted on a base, and the base is installed on a car frame via an elastic body so that the active damper can move. A restraint device is provided to restrain the base during movement of the body and prevent its displacement in the lateral direction.

Further, in the vibration damping device for an elevator according to the sixth aspect of the present invention, a stopper for restricting lateral displacement of the base is provided between the base on which the actuator is mounted and the cab.

Further, the vibration damping device for an elevator according to the seventh invention is provided with a brake for braking the actuator when the controller is abnormal.

Further, in the vibration damping device for an elevator according to the eighth aspect of the present invention, the actuators are arranged in two upper and lower stages with their acting directions orthogonal to each other.

Further, the vibration damping device for an elevator according to the ninth aspect of the invention is provided with a temperature sensor for detecting the outside air temperature, and when the detected outside air temperature falls below a predetermined temperature, the vibration is irrelevant regardless of the vibration of the car floor. It is provided with warm-up operation command means for commanding the output of the control signal.

Further, the vibration damping device for an elevator according to the tenth aspect of the present invention couples the vertical vibration sensor for detecting the vertical vibration of the car floor with the cab and the actuator when vibration is suppressed by the horizontal vibration control signal. However, there is a clutch mechanism that releases the coupling when the vertical vibration sensor operates, a conversion mechanism that converts the lateral damping force to the vertical direction, and a connection mechanism that connects the vertical vibration sensor operation conversion mechanism and the screw rod of the actuator. It is equipped with.

[0028]

In the first invention of the present invention, the actuator is constituted by a linear motor, and in the second invention,
Since the actuator is composed of a piezo element, a screw rod driven by a motor is unnecessary. Further, along with this, it is not necessary to lubricate the threaded rod.

According to the third aspect of the invention, the actuator is mounted on the base, and the actuator is mounted on the car frame via the elastic body so that the movable body of the active damper is directly connected to the cab side, and the actuator is moved laterally. Since the linear motion bearing that guides the displacement is connected between the cab and the base, lateral static displacement and vibration are absorbed by the elastic body, and the damping force is applied in the direction orthogonal to the linear motion direction of the linear motion bearing. Does not work. Further, although the load due to the static displacement in the vertical direction acts on the linear motion bearing, the linear motion bearing linearly moves by the action of the active damper, so that the transmission in the linear motion bearing is well lubricated.

Further, in the fourth aspect of the present invention, when the active damper is not operated, the cab and the movable body of the active damper are set in a non-coupled state, so that the lateral vibration is absorbed in the gap between the two.

Further, in the fifth aspect of the invention, since the base on which the actuator is mounted is restrained when the active damper is activated, the rigidity of the base portion with respect to the car frame is enhanced when the active tamper is activated.

In the sixth aspect of the invention, since the lateral displacement of the base on which the actuator is mounted is restricted by the stopper, the cab and the car frame do not collide with each other even when the controller is abnormal. .

Further, in the seventh aspect of the invention, when the controller is abnormal, the brake is used to brake the actuator, so that the cab does not collide with the car frame.

Further, in the eighth aspect of the invention, since the actuators are arranged in the upper and lower two stages with their acting directions orthogonal to each other, both actuators can be arranged near the center line of the car floor.

Further, in the ninth aspect, when the outside air temperature becomes equal to or lower than the predetermined temperature, the actuator is warmed up, so that the grease temperature of the screw rod rises.

In the tenth aspect of the invention, when vertical vibration is detected, the coupling between the cab and the actuator is released, and the screw rod of the actuator is connected to the cab through the conversion mechanism. Vibration can be controlled in both the vertical and vertical directions.

[0037]

【Example】

Example 1. FIG. 1 is a device configuration diagram showing an embodiment of the first invention of the present invention, and the same parts as those of the conventional device are designated by the same reference numerals (the same applies to other embodiments). In the figure, (21) is the primary side of the linear motor fixed to the underfloor mounting plate (12), (22) is the secondary side provided corresponding to the primary side (21) of the linear motor, and the support ( It is supported by the car frame (3) at 23). The primary side (21) and the secondary side (22) of the linear motor form an actuator.

In the elevator controller constructed as described above, the controller is controlled by the output of the vibration sensor (15).
(16) outputs a vibration control signal to the primary side of the linear motor. This creates thrust between the secondary side (22) and the car frame (3)
Damping force is generated between the cage rooms (6). Unlike the conventional device, the screw rod (9) driven by the motor (8) and the movable body (11) are unnecessary. Therefore, a joint for connecting the motor (8) and the screw rod (9) is unnecessary. The primary side of the linear motor (2
1) may be mounted on the car frame (3) side, and the secondary side (22) may be mounted on the cab room (6) side.

Example 2. FIG. 2 is a device configuration diagram showing an embodiment of the second invention of the present invention. In this embodiment, the piezo element (25) is used as an actuator, one end of the piezo element (25) is connected to the underfloor mounting plate (12), and the other end is connected to the support (23). The piezo element (25)
Is an element whose thickness changes according to the applied voltage.

That is, the piezo element (25) changes its thickness according to the vibration control signal from the controller (16),
Damping force is generated between (3) and the cab (6). Therefore,
Unlike the conventional device, the screw rod (9) and the movable body (11) are unnecessary, and the same effect as that of the first embodiment is obtained.

Example 3. FIG. 3 is a device configuration diagram showing another embodiment of the second invention of the present invention. In this embodiment, a piezo element (25) is used as an actuator similarly to the second embodiment, and one end of the piezo element (25) is connected to the underfloor mounting plate (12) and an arm (27), and the arm (27) is a car frame ( It is supported by a shaft (29) on a support (28) fixed to 3).

That is, as in the second embodiment, the piezo element (2
The thickness of 5) changes according to the vibration control signal from the controller 16, but this change is magnified by the link mechanism consisting of the arm 27 and the shaft 29. Therefore, vibration with a large amplitude can be suppressed.

Example 4. FIG. 4 is a device configuration diagram showing an embodiment of the third invention of the present invention. In the figure, the motor
The bearing (10) that rotates by (8) and the motor (8) and supports the screw rod (9) engaged with the movable body (11) is mounted on the base (31), and the base (31) is vibration-proof. It is supported by the car frame (3) via the rubber (32). (33) is a linear motion bearing consisting of a fixed part and a movable part.The fixed part is the base (31) and the movable part is the underfloor mounting plate (1
It is fixed to 2).

That is, when a load change such as getting on and off a passenger occurs, the cab (6) is displaced relative to the car frame (3).
The load due to this displacement is applied to the anti-vibration rubber via the linear motion bearing (33).
The vibration is transmitted to the (32) and the vibration damping rubber (32) is deformed to absorb the displacement. On the other hand, the vibration damping mechanism including the actuator including the motor (8) and the screw rod (9) and the movable body (11) is similar to that of the conventional device. At this time, the linear motion bearing (33) moves linearly.
(Moving part is guided by fixed part to move linearly)
Since the rolling elements in (33) are lubricated by the enclosed lubricating oil, a long life can be expected.

In the fourth embodiment, the fixed part of the linear motion bearing (33) is fixed to the base (31) and the movable part is fixed to the underfloor mounting plate (12). It is also possible to fix the movable part to the base (31) in 12), and the same effect as in Example 4 can be expected.

Example 5. 5 and 6 show a third embodiment of the present invention.
5 is a view showing another embodiment of the invention of FIG. 5, FIG. 5 is a device configuration diagram, and FIG. 6 is a sectional view taken along line VI-VI of FIG. In FIG. 4, the linear motion bearing (33) is provided between the underfloor mounting plate (12) and the base (31), but in the fifth embodiment, the linear motion bearing (33) is provided with the screw rod (9).
They are arranged on both sides of and are provided between the car floor (41) and the base (31), and the same effect as that of the fourth embodiment can be obtained. In FIG. 5, the anti-vibration rubber (7) shown in FIG. 4 is not provided.

Example 6. FIG. 7 is an equipment configuration diagram (partial cross section) showing an embodiment of the fourth invention of the present invention. In the figure, (35) is a coupler consisting of an electromagnet inserted in the screw rod (9) and fixed to the movable body (11) .When the coupler (35) is deenergized, the coupler (35) and the underfloor mounting A gap (36) is maintained with the board (12).

That is, when the active damper is actuated by the output of the vibration sensor (15) during traveling of the cab (6), the controller (16) also outputs to the coupler (35) and the coupler (35). )
Energize. With this, the coupler (35) exerts a suction force on the underfloor mounting plate (12) to fix them. Therefore, the active damper has the same function as described above.
On the other hand, when the cab room (6) is stopped, or when the active damper is inactive due to a malfunction or the like even while traveling, the coupler (35) is not energized, and the underfloor mounting plate (12) and the coupler (35) are not activated. That is, it is separated from the movable body (11) and a gap (36) is secured between them. Therefore, the vibration in the lateral direction is absorbed by the gap (36), and the vibration damping property in the lateral direction does not deteriorate.

Example 7. FIG. 8 is an equipment configuration diagram (partial cross section) showing an embodiment of the fifth invention of the present invention. In this embodiment, a restraint (38) made of an electromagnet is arranged outside the base (31) of FIG. 4, and a movable iron core (39) driven in the direction of arrow A when the restraint (38) is energized is installed. It is provided.

That is, when the active damper operates, the controller (16) also outputs to the restraint device (38) to urge the restraint device (38). As a result, the movable iron core (39) is driven in the direction of arrow A, and its tip presses both side ends of the base (31). By this operation, the displacement of the base (31) with respect to the car frame (3) is restricted, and the rigidity is increased. As a result, the stability of the control system is improved and the oscillation of the control system can be suppressed. On the other hand, when the active damper is not activated, the restraint device (38) is deenergized and the movable iron core (39) does not press the base (31). With this, the vertical relative displacement of the car room (6) with respect to the car frame (3) due to load fluctuations such as passengers getting on and off is absorbed by the anti-vibration rubber (32).

Example 8. FIG. 9 is a device configuration diagram showing an embodiment of the sixth invention of the present invention. This embodiment is shown in FIG.
Corresponding stoppers (43) are provided on the lower surface of the car floor (41) and the upper surface of the base (31).

That is, if the vibration damping mechanism deteriorates due to an abnormality in the controller (16) or a calculation error, the car room (6) may be largely displaced with respect to the car frame (3). At this time, the stopper (43) regulates the displacement of the car room (6), and the car room (6)
The equipment is prevented from being damaged without colliding with (3).

Example 9. FIG. 10 is a device configuration diagram showing an embodiment of the seventh invention of the present invention. In this embodiment, the motor (8) of FIG. 5 is provided with a brake (45). That is, as in the case of the eighth embodiment, when an abnormality or a calculation error occurs in the controller (16) and the cab (6) is largely displaced, the controller (1
The brake (45) operates according to the command of 6), and the motor (8)
The rotation of the cab (6) to regulate the displacement of the cab (6).
Prevent the car from colliding with the car frame (3).

Example 10. FIG. 11 is a device configuration diagram showing an embodiment of the eighth invention of the present invention. This example
Motor (8), screw rod (9), bearing (10), movable body (11), underfloor mounting plate (12), base (31), linear bearing (33) and vibration sensor (1
5) Motor (8A), screw rod (9A) (not shown), bearing (10A), movable body (11A) (not shown), underfloor mounting plate (12)
A), base (31A), linear bearing (33A) and vibration sensor (15A)
Are provided, and the operating directions thereof are orthogonal to each other, and they are arranged in upper and lower two stages.

With this, it becomes possible to control the left and right vibrations. Further, since the upper and lower two-stage actuators are arranged near the center line of the car floor (41), they do not induce vibration in the rotation direction of the car floor (41). Moreover, the space under the car floor (41) can be effectively utilized.

Example 11. FIG. 12 is a device configuration diagram showing an embodiment of the ninth invention of the present invention. This example
A temperature sensor (47) is provided on the floor of the cab (6) of FIG. 16 and is connected to the controller (16).

That is, the temperature sensor (47) detects the outside air temperature and sends a temperature signal to the controller (16). The warm-up operation command means (not shown) included in the controller (16) is a motor.
The signal corresponding to the temperature is output to (8) to operate the actuator. After a predetermined time, a signal is output to automatically stop the motor (8). With this, warm-up operation is performed,
Increase the grease temperature even when the temperature is low
The rotation loss of (9) is reduced. Therefore, the lateral vibration isolation performance of the car floor with respect to the car frame (3) does not deteriorate. It is desirable that the warm-up operation be performed when there is no passenger by detecting the load in the cab (6).

Example 12 13 to 15 are views showing an embodiment of the tenth invention of the present invention, FIG. 13 is an equipment configuration diagram, FIG. 14 is an enlarged plan view of a clutch mechanism portion, and FIG. 15 is an enlarged front view of a conversion mechanism portion. Is.

In the figure, (49) has a lower end fixed to the movable part of the linear motion bearing (33) and an upwardly extending connecting plate, and (50) is fixed to the lower surface of the cab (6), and the connecting plate A clutch mechanism that grips or releases (49), and (51) pivotally connects the disc (51a) and the link (51b) hanging from the lower surface of the cab (6), and the link (51b) and the disc (51a). A conversion mechanism that consists of a pin (51c) that converts the damping force in the vertical direction, and a conversion mechanism (52) that consists of a pin (51c) that pivotally attaches the disc (51a) to convert the damping force in the vertical direction. The conversion mechanism (52) is a connection mechanism for connecting or disconnecting the disc (51a) and the screw rod (9).

(53) is a vertical vibration sensor which is installed on the floor of the car room (6) and detects longitudinal vibration of the car floor, (54) is an elevator control panel, and the connecting mechanism (52), vertical Vibration sensor
(53) and the control panel (54) are connected to the controller (16).

That is, the controller 16 inputs the speed signal of the elevator from the control panel 54 and determines whether the elevator is in acceleration or deceleration or at a constant speed. When the controller (16) inputs a signal from the vertical vibration sensor (53) during acceleration / deceleration, the connection mechanism (52)
Is operated to connect the screw rod (9) to the conversion mechanism (51). At this time, since the clutch mechanism (50) releases the coupling plate (49), the rotation of the screw rod (9) is transmitted to the cab (6) via the disc (51a) and the link (51b). It This suppresses the vertical vibration that is mainly generated during acceleration / deceleration.

Further, when the controller (16) judges that the elevator is at a constant speed, it deactivates the connection mechanism (52) and releases the screw rod (9) from the conversion mechanism (51). At the same time, the clutch mechanism (50) is operated to grip the coupling plate (49). with this,
The horizontal vibration that occurs mainly at a constant speed is damped as described above. In this way, both longitudinal vibration and lateral vibration can be damped.

[0063]

As described above, according to the first aspect of the present invention, the actuator is constituted by the linear motor, and
In the invention, since the actuator is composed of the piezo element, the screw rod driven by the motor is unnecessary, and along with this, it is not necessary to lubricate the screw rod, and the structure can be simplified and noise can be reduced. There is. Moreover, there is an effect that maintenance is unnecessary.

According to the third aspect of the invention, the actuator is mounted on the base, and the actuator is mounted on the car frame via the elastic body. The movable body of the active damper is directly connected to the cab side and the lateral displacement is achieved. Since the linear motion bearing that guides is connected between the cab and the base, the vertical static displacement and vibration are absorbed by the elastic body, and the damping force is applied in the direction orthogonal to the linear motion direction of the linear motion bearing. Does not work. Further, the load due to the static displacement in the vertical direction acts on the linear motion bearing, but since the linear motion bearing moves linearly by the action of the active damper, the transmission in the linear motion bearing is well lubricated, and It has the effect of preventing a decrease in life.

Further, according to the fourth aspect of the present invention, when the active damper is not operated, the cab and the movable body of the active damper are in a non-coupled state, so that the lateral vibration is absorbed in the gap between the two and the active damper is absorbed. It has the effect of preventing the deterioration of the anti-vibration property when not operating.

Further, in the fifth aspect of the invention, since the base on which the actuator is mounted is restrained when the active damper is actuated, the rigidity of the base portion with respect to the car frame is increased when the active tamper is actuated, and the control system This has the effect of improving stability and suppressing oscillation of the control system.

Further, in the sixth aspect of the invention, since the lateral displacement of the base on which the actuator is mounted is restricted by the stopper, the cab does not collide with the car frame even when the controller is abnormal. It has the effect of preventing equipment damage.

Further, in the seventh aspect of the invention, when the controller is abnormal, the actuator is braked by the brake, so that there is no collision between the cab and the car frame, and there is an effect that equipment damage can be prevented. .

In the eighth aspect of the invention, since the actuators are arranged vertically in two stages with their acting directions orthogonal to each other, both actuators can be arranged near the center line of the car floor, and vibration in the rotation direction on the car floor can be achieved. Vibration can be suppressed in the horizontal direction and the vertical direction without inducing vibration, and the ride comfort in both directions can be improved.

Further, in the ninth aspect of the invention, when the outside air temperature becomes equal to or lower than the predetermined temperature, the actuator is warmed up, so that the grease temperature of the screw rod rises and the lateral vibration isolation performance deteriorates due to the low temperature. There is an effect that can be prevented.

In the tenth aspect of the invention, when vertical vibration is detected, the connection between the cab and the actuator is released, and the screw rod of the actuator is connected to the cab through the conversion mechanism. Vibration can be controlled in the vertical and vertical directions, and the ride comfort in both directions can be improved.

[Brief description of drawings]

FIG. 1 is a device configuration diagram showing a first embodiment of the present invention.

FIG. 2 is a device configuration diagram showing a second embodiment of the present invention.

FIG. 3 is a device configuration diagram showing a third embodiment of the present invention.

FIG. 4 is a device configuration diagram showing a fourth embodiment of the present invention.

FIG. 5 is a device configuration diagram showing a fifth embodiment of the present invention.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a device configuration diagram (partial cross section) showing a sixth embodiment of the present invention.

FIG. 8 is a device configuration diagram (partial cross section) showing the seventh embodiment of the present invention.

FIG. 9 is a device configuration diagram showing an eighth embodiment of the present invention.

FIG. 10 is a device configuration diagram showing a ninth embodiment of the present invention.

FIG. 11 is a device configuration diagram showing a tenth embodiment of the present invention.

FIG. 12 is a device configuration diagram showing an eleventh embodiment of the present invention.

FIG. 13 is a device configuration diagram showing an embodiment 12 of the present invention.

14 is an enlarged plan view of the clutch portion of FIG.

FIG. 15 is an enlarged front view of the conversion mechanism portion of FIG.

FIG. 16 is a device configuration diagram showing a conventional vibration damping device for an elevator.

[Explanation of symbols]

 3 Car frame 6 Car room 8,8A Motor 9 Screw rod 11 Movable body 12,12A Underfloor mounting plate 15,15A Vibration sensor 16 Controller 21 Linear motor primary side 22 Linear motor secondary side 25 Piezo element 31, 31A Base 32 elastic body (anti-vibration rubber) 33, 33A linear motion bearing 35 coupler 38 restrainer 43 stopper 45 brake 47 temperature sensor 50 clutch mechanism 51 conversion mechanism 52 connection mechanism

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[Procedure amendment]

[Submission date] September 20, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

(F) In order to prevent deterioration of the anti-vibration characteristics in the damping direction due to (e) above, an actuator consisting of the motor (8) and the screw rod (9) is installed on the base (not shown). , The base is attached to the car frame (3) via an elastic body. However, in this case, the rigidity in the damping direction decreases, the stability of the control system decreases, and the control system easily oscillates.

Claims (10)

[Claims] 1. An active damper for applying a vibration control signal for lateral vibration of a car floor to an actuator arranged between the car frame and the car room to generate a vibration damping force between the car frame and the car room. In the elevator where
A vibration damping device for an elevator, characterized in that the actuator is constituted by a linear motor, the primary side of which is attached to one of the car frame and the cab, and the secondary side of which is attached to the other of the car frame and the cab. 2. An active damper for applying a vibration control signal for lateral vibration of a car floor to an actuator arranged between the car frame and the car room to generate a vibration damping force between the car frame and the car room. In the elevator where
A vibration damping device for an elevator, wherein the actuator is composed of a piezo element, and one end of the actuator is connected to the car frame side and the other end is connected to the car room side. 3. An actuator composed of a motor and a screw rod which is driven by this motor and arranged laterally between the car frame and the cab, a movable body which engages with the screw rod, and a lateral direction of the car floor. In an elevator equipped with an active damper consisting of a controller that outputs a vibration control signal corresponding to the vibration of the motor to the motor, the actuator in which the movable body is engaged is mounted on a base, and the base is connected via an elastic body. Installed in the car frame, directly connects the movable body of the active damper to the car room side, and is provided between the car room and the base with a linear motion bearing for guiding the lateral displacement of the car room. A vibration control device for elevators. 4. An actuator composed of a motor and a screw rod which is driven by this motor and arranged laterally between the car frame and the cab, a movable body which engages with the screw rod, and a lateral direction of the car floor. In an elevator equipped with an active damper consisting of a controller that outputs a vibration control signal corresponding to the vibration of the motor to the motor, the actuator in which the movable body is engaged is mounted on a base, and the base is connected via an elastic body. Installed in the car frame, and when the active damper is operating, the car room and the movable body of the active damper are connected to each other, and when the active damper is not operated, the car room and the movable body of the active damper are connected to each other. A vibration damping device for an elevator, characterized in that it is provided with a coupler for making it uncoupled. 5. An actuator composed of a motor and a screw rod which is driven by this motor and arranged laterally between the car frame and the cab, a movable body which engages with the screw rod, and a lateral direction of the car floor. In an elevator equipped with an active damper consisting of a controller that outputs a vibration control signal corresponding to the vibration of the motor to the motor, the actuator in which the movable body is engaged is mounted on a base, and the base is connected via an elastic body. A vibration damping device for an elevator, comprising: a restrainer installed on the car frame to restrain the base from being displaced laterally when the active damper operates. 6. An actuator composed of a motor and a screw rod which is driven by this motor and arranged in a lateral direction between a car frame and a cab, a movable body which engages with the screw rod, and a lateral direction of a car floor. In an elevator equipped with an active damper consisting of a controller that outputs a vibration control signal corresponding to the vibration of the motor to the motor, the actuator in which the movable body is engaged is mounted on a base, and the base is connected via an elastic body. And a stopper for restricting lateral displacement of the base between the car room and the base. 7. An actuator comprising a motor and a screw rod which is driven by the motor and arranged in a lateral direction between the car frame and the cab, a movable body which engages with the screw rod, and a lateral direction of the car floor. In an elevator equipped with an active damper consisting of a controller that outputs a vibration control signal corresponding to the vibration of the motor to the motor, the actuator in which the movable body is engaged is mounted on a base, and the base is connected via an elastic body. A vibration damping device for an elevator, comprising: a brake installed on the car frame to brake the actuator when the controller is abnormal. 8. An actuator composed of a motor and a screw rod which is driven by this motor and arranged laterally between the car frame and the cab, a movable body which engages with the screw rod, and a lateral direction of the car floor. In an elevator equipped with an active damper consisting of a controller that outputs a vibration control signal corresponding to the vibration of the motor to the motor, the actuator in which the movable body is engaged is mounted on a base, and the base is connected via an elastic body. A vibration damping device for an elevator, characterized in that the actuators are arranged in two stages above and below, with the actuators operating in directions orthogonal to each other. 9. An active damper for applying a vibration control signal for lateral vibration of a car floor to an actuator arranged between the car frame and the car room to generate a vibration damping force between the car frame and the car room. In the elevator where
A temperature sensor for detecting the outside air temperature is provided, and when the output of the temperature sensor becomes equal to or lower than a predetermined temperature, warm air operation command means for instructing the output of the vibration control signal regardless of the vibration of the car floor is provided. Vibration control device for elevator. 10. An active damper for applying a vibration control signal for lateral vibration of a car floor to an actuator arranged between the car frame and the car room to generate a vibration damping force between the car frame and the car room. In an elevator equipped with a vertical vibration sensor that detects the vibration of the car floor in the vertical direction, when the vibration is suppressed by the horizontal vibration control signal, the cab and the actuator are combined, and when the vertical vibration sensor operates, the A clutch mechanism for releasing the coupling, a conversion mechanism for converting the lateral damping force into the vertical direction, and a connection mechanism for connecting the conversion mechanism and the screw rod when the vertical vibration sensor operates. Vibration control device for elevators.