JPH04191265A - Elevator device - Google Patents

Abstract

PURPOSE:To keep off any rolling in an elevator cage due to inclination by shifting a weight and correcting the cage inclination at a time when this cage inclination is detected. CONSTITUTION:When passenger getting into an elevator cage 5 are one-sided into one spot, by way of example, and thereby the cage 5 gets unbalanced into inclination, this inclination is detected by a tilt detector. On the basis of this detection, a driver 27 of a weight 26 is controlled by a control means 33, through which the weight 26 is controlled so as to balance the centroid of the cage 5, thus the inclination of the cage 5 is corrected. With this constitution, any rolling in the cage 5 attributable to inclination of the cage 5 is preventable.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) This invention relates to an elevator system for transporting passengers to each floor of a building.

(Prior Art) A schematic structure of an elevator system is shown in FIG. 1 in the diagram
A floor support frame 2 is attached to the inside lower part of the car frame 1, and a car chamber 4 in which passengers ride is supported on the floor support frame 2 via a vibration isolating rubber 3. The floor support frame 2 and the car room 4 constitute a car 5 having a unit structure. The car 5 is suspended in the hoistway 7 of the building by a rope 6, and the rope 6
It is designed to move up and down within the hoistway 7.

Guide rails 10 are provided on both sides of the hoistway 7, facing each other.
．． 10, and roller guide mechanisms 11 are provided at the left and right portions of the upper and lower ends of the car 5, respectively, to engage with the guide rails 10, 10 and guide the travel of the car 5.

The structure of these roller guide mechanisms 11 is shown in FIG.
A lever 1.4 is rotatably attached to the lever 1.4, and a wheel 15 made of rubber is rotatably supported at the lower end of the lever 14 via a support shaft 16. Further, shafts 17 and 18 are provided horizontally on the frame 12, and the levers 14 are loosely inserted into these shafts 17 and 18, and the guide rails 10
A spring 19 is provided on one shaft 17 and a rubber stopper 20 is provided on the other shaft 18 at this projecting portion. The spring 19 elastically urges the lever 14 toward the guide rail 10, and this urging force causes the circumferential surface of the wheel 15 to elastically abut against the end surface of the guide rail 10, and the stopper 20 It is fixed to the shaft 18 so as to leave a certain distance between it and the lever 14. Furthermore, rubber wheels 15' are provided on both side surfaces of the guide rail 10 with a similar structure.

The car 5 is supported by the guide rails 10, 10 by each of the roller guide mechanisms 11, and the car 5 is moved by rolling contact between each wheel 15 and the guide rail 10. It is something to be guided. If the guide rail 10 is bent or has a step or other deformation due to machining errors or installation errors, this portion should be fixed to the wheel 15.
When the wheel 15 passes, the wheel 15 is elastically displaced against the spring 19, and this displacement absorbs the deformation, reducing the propagation of the impact to the car 5 and preventing the car 5 from rolling. It is something that can be prevented.

By the way, in high-speed elevator equipment where the operating speed of the car exceeds 300 m/a+in, the spring 1
If the spring constant of 9 is too large, the car 5 will easily sway due to the deformation of the guide rail 10, and this is particularly likely to occur as the weight of the car 5 has been reduced in recent years. Therefore, in such a high-speed elevator system, the spring constant of the spring 19 is set to 1 to 1.
It is set to a small value of about 2 kg/mIa.

(Problem to be solved by the invention) However, if the spring constant of the spring 19 is small in this way, if a plurality of passengers boarding the car compartment 4 are arranged unevenly in one place in the car compartment 4, Then, the car 5 tilts due to the load, and the spring 19 is greatly bent. When the spring 19 is greatly bent in this manner, a rubber stopper 20 shown in FIG. 5 comes into contact with the lever 14. This stopper 20 prevents the spring 19 from bending too much, and therefore the elastic modulus of the stopper 20 is set to a value of 5 kg/mm or more, which is much larger than the spring constant of the spring 19. Therefore, when the car 5 is tilted and the car 5 travels with the stopper 20 in contact with the lever 14, the impact caused by the deformation of the guide rail 1o passes through the stopper 2o and is transferred almost directly to the car. The problem is that the vibration is transmitted to the car, which causes the car 5 to sway, deteriorating the riding comfort.

This invention was made with attention to these points, and its purpose is to maintain the balance of the car evenly even if passengers are unevenly arranged in the car. To provide an elevator device capable of preventing a car from rolling due to inclination.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a car with wheels that can be elastically displaced and that roll into contact with the guide rail by the elastic force of the wheels. The car travels along the idle rail by rolling contact between the wheels and the guide rail, and a balance adjustment means for adjusting the balance of the center of gravity of the car by driving a weight by a drive device; inclination detection means for detecting the inclination of the corner based on the displacement;
Control means is provided for controlling the drive device based on the signal when the tilt detection means detects the tilt of the car, and moves the weight to correct the tilt of the car. .

(Function) For example, if passengers who have boarded the car are unevenly placed in one place, the center of gravity of the car is unbalanced and the car tilts, and this tilt is detected by the tilt detection means. Based on this detection, the weight driving device is controlled by the control means, and by this control, the weight is driven so as to balance the center of gravity of the car, thereby correcting the inclination of the car. Therefore, rolling of the car due to tilting of the car is prevented.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4. Components that are the same as those shown in FIGS. 5 and 6 are designated by the same reference numerals, and their explanations will be omitted.

A first embodiment is shown in FIGS. 1 and 2, and a screw shaft 25 is rotatably installed inside the lower beam 1a of the car frame 1 along the left-right direction of the car 5. A weight 26 for adjusting the balance of the center of gravity of the car 5 is screwed onto the shaft 25. The screw shaft 2 is attached to one end of the screw shaft 25.
A driving device 27 for rotating the weight 26 is provided, and the screw shaft 25 is driven by the driving device 27, thereby causing the weight 26 to reciprocate in its axial direction.

Roller guide mechanism 11.11 on the lower end side of the car 5
Displacement meters 30 and 30 are respectively provided as inclination detection means for detecting the inclination of the car 5. These displacement meters 30.30 are supported on the lower surface of the lower beam 1a via support rods 31.31 so as to face the levers 14.14. These displacement meters 30.30 have detection needles 32.32 that move forward and backward, and the tips of these detection needles 32.32 come into contact with the side edges of levers 14.14.
4 rotates about the pivot shaft 13.degree. 13, the detection hands 32, 32 move forward and backward with this movement, and the inclination of the car 5 is detected based on this movement. Lower beam 1a
A microcomputer 33 as a control means for controlling the drive device 27 based on the detection signal of the displacement meter 30, 30 is provided on the lower surface of the device.

In such a configuration, for example, by arranging the passengers who have boarded the car 4 in a biased manner to one place, the passenger car 5 is
If the balance of the center of gravity of the car 5 is lost and the car 5 tilts to the left or right, the levers 14° 14 of each roller guide mechanism 1.1.11 will move relative to the pivot shaft 13 with respect to the car 5. The car 5 is rotated around ゜13 as a fulcrum, and the amount of rotational displacement is detected by the displacement meter 30.30 as the magnitude of the inclination of the car 5.
A signal of this detection information is sent to the microcomputer 33. The microcomputer 33 calculates this information, controls the drive device 27 based on the signal from this calculation, and based on this control, the weight 26 is driven so that the center of gravity of the car 5 is balanced. The slope of is corrected. Therefore, the roller guide mechanism 11.
11 springs 19, 19 are not bent too much,
In other words, the car 5 is prevented from running while in contact with the stopper 20.20 or the lever 14.14, and therefore the car 5 is prevented from rolling due to deformation of the guide rail 10. It is possible to maintain a good ride comfort without any problems.

In addition, in the above explanation, it is assumed that the car 5 tilts to the left and right, and this is corrected, or in addition to the weight that moves in the left and right direction of the car 5, a weight that moves in the front and back direction is provided. It is also possible to use these weights to correct the tilting of the car in the front, rear, left, and right directions.

A second embodiment of the invention is shown in FIGS. 3 and 4,
In this second embodiment, the weight 26 is driven by a linear motor, that is, the weight 26 is driven by a linear motor.
rollers 35.35 are provided on both sides of the car frame 1, and a pair of rails 36.36 are provided on the lower beam 1a of the car frame 1 facing each other;
The rollers 35° 35 are engaged with these rails 36, 36, and a linear motor 38 is provided between the support plate 37 provided on the upper part of the lower beam 1a and the upper surface of the weight 26, and the operation of this linear motor 38 The weight 26 is attached to the rail 36.
36, and the balance of the center of gravity of the car 5 is adjusted by this movement. In this way, using the linear motor 38, the weight 26
In the means of driving the weight 2, it is possible to quickly move the weight 2 with low vibration.
There is an advantage that 6 can be moved.

[Effects of the Invention] As explained above, according to the present invention, when an unbalanced load is applied to the car and the car tilts, it can be corrected through the weight, and therefore the sideways shaking caused by the tilt of the car can be corrected. This has the advantage of preventing this and always maintaining a good ride quality.

[Brief explanation of drawings]

FIG. 1 is a front view of an elevator system according to a first embodiment of the present invention, FIG. 2 is a front view showing an enlarged view of the main parts thereof, and FIG. 3 is a front view of an elevator system according to a second embodiment of the present invention. Figure δ is a front view showing an enlarged view of its main parts;
The figure is a front view of a conventional elevator system, and FIG. 6 is a front view of a roller guide mechanism of the elevator. 5... Car, 10... Guide rail, 15... Wheels, 26... Weight (tilt adjustment means), 27...
Drive device, 30... Displacement meter (tilt detection means), 33...
- Microcomputer (control means). Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] The car is equipped with wheels that are elastically displaceable and roll into contact with the guide rail using their elastic force, and the car runs along the guide rail by rolling contact between the wheels and the guide rail. A balance adjustment means that is driven by a drive device to adjust the balance of the center of gravity of the car; a tilt detection means that detects the tilt of the car based on the displacement of the wheels; and the tilt detection means detects the tilt of the car. and a control means for controlling the driving device based on the signal when the car is tilted, and moving the weight to correct the inclination of the car.