JP2718819B2 - Elevator equipment - Google Patents

Description

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

(Prior Art) FIG. 5 shows a schematic structure of an elevator apparatus. In the drawing, reference numeral 1 denotes a car frame, a floor receiving frame 2 is attached to a lower portion inside the car frame 1, and a car room 4 for passengers is supported on the floor receiving frame 2 via an anti-vibration rubber 3. The frame 1, the floor receiving frame 2, and the car room 4 constitute a car 5 having a unit structure. The car 5 is suspended by a rope 6 in a hoistway 7 of a building, and runs up and down the hoistway 7 by the operation of the rope 6.

Guide rails 1 oppose each other on both sides of hoistway 7
Roller guide mechanisms 11 are provided at the upper and lower left and right portions of the car 5 to guide the traveling of the car 5 by engaging with the guide rails 10, 10, respectively. FIG. 6 shows the structure of these roller guide mechanisms 11. Reference numeral 12 denotes a frame, and a lever 14 is rotatably attached to the frame 12 via a pivot shaft 13. Wheels 15 are rotatably supported via support shafts 16. Further, shafts 17 and 18 are provided horizontally on the frame 12, and these shafts 17 and 18 loosely insert the lever 14 and protrude to the opposite side of the guide rail 10, and at this protruding part, the one shaft 17 has a spring 19, Rubber stoppers 20 are provided on the other shafts 18, respectively. The lever 14 is moved by the spring 19 so that the guide rail 10
Is elastically urged toward the side where
The stopper 20 is fixed to the shaft 18 such that the stopper 20 is spaced apart from the lever 14 by a predetermined distance. Furthermore, rubber wheels are provided on both sides of the guide rail 10 by the same structure.
15 'is provided.

The car 5 is supported by the guide rails 10, 10 by such roller guide mechanisms 11, and the traveling of the car 5 is guided by the rolling contact between the wheels 15 and the guide rails 10, 10. It is. And, when deformation such as bending or a step has occurred in the guide rail 10 due to processing error or installation error, etc., when the wheel 15 passes this part, the wheel 15 is opposed to the spring 19. It is elastically displaced, and the deformation absorbs the deformation, and the propagation of the impact to the car 5 is alleviated to prevent the car 5 from rolling.

By the way, in a high-speed elevator apparatus in which the operating speed of the car 5 exceeds 300 m / min, if the spring constant of the spring 19 is too large, the rolling of the car 5 due to the deformation of the guide rail 10 can easily occur. In particular, in recent years, the weight of the car 5 has been reduced, which has become more remarkable. In such a high-speed elevator apparatus, the spring 19 has a spring constant of about 1 to 2 kg / mm. Is set to a small value.

(Problems to be Solved by the Invention) However, if the spring constant of the spring 19 is small as described above, a case where a plurality of passengers who got into the cab 4 are arranged in one place in the cab 4 In addition, the load causes the car 5 to tilt and the spring 19 to bend significantly. When the spring 19 is largely bent, the rubber stopper 20 shown in FIG. This stopper 20 is a spring
Therefore, the elastic coefficient 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 runs in a state where the car 5 is tilted and the stopper 20 is in contact with the lever 14, the guide rail
The impact caused by the deformation of the car 10 is transmitted almost directly to the car through the stopper 20.
There is a drawback that rolling occurs and the ride quality is deteriorated.

The present invention has been made in view of such a point,
The purpose is to keep the balance of the car even and prevent the car from rolling due to its inclination, even if the passengers are placed unevenly in the car room. An object of the present invention is to provide an elevator apparatus.

[Constitution of the Invention] (Means for Solving the Problems) In order to achieve such an object, the present invention provides a car provided with wheels capable of being elastically displaced and rolling on a guide rail by its elastic force. A car that travels along the guide rail by rolling contact between the wheel and the guide rail, wherein a balance adjusting means for adjusting the balance of the center of gravity of the car by driving a weight by a driving device; and Inclination detecting means for detecting the inclination of the car based on the displacement, and when the inclination detecting means detects the inclination of the car, the driving device is controlled based on the signal to move the weight and the car is moved. And a control means for correcting the inclination.

(Operation) For example, when the passengers who got into the car are placed in one place, the balance of the center of gravity of the car is lost and the car tilts, and this tilt is detected by the tilt detecting means. The weight driving device is controlled by the control means based on this detection, and the weight is driven so that the balance of the center of gravity of the car is balanced by this control, and the inclination of the car is corrected. Therefore, the rolling of the car due to the inclination of the car is prevented.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. The same components as those shown in FIGS. 5 and 6 are denoted by the same reference numerals, and description thereof will be omitted.

1 and 2 show a first embodiment, and a car frame 1
On the inner side of the lower beam 1a, a screw shaft 25 is rotatably mounted along the left and right direction of the car 5 and a weight 26 for adjusting the balance of the center of gravity of the car 5 is screwed onto the screw shaft 25. I have. A driving device 27 for rotating the screw shaft 25 is provided at one end of the screw shaft 25, and the weight 26 reciprocates in the axial direction by the rotation of the screw shaft 25 driven by the driving device 27. It has become.

The roller guide mechanisms 11, 11 on the lower end side of the car 5 are provided with displacement meters 30, 30 as tilt detecting means for detecting the tilt of the car 5, respectively. These displacement meters 30,30
Is supported on the lower surface of the lower beam 1a via the support rods 31, 31 so as to face the levers 14, 14. And these displacement meters 30,3
0 has detection needles 32, 32 which move forward and backward, and these detection needles 32, 3
2 comes into contact with the side edges of levers 14 and 14, and these levers 1
When the pivots 4 and 14 are pivoted on the pivots 13 and 13, the detection needles 32 and 32 move forward and backward by this operation, and the inclination of the car 5 is detected based on the movement. On the lower surface of the lower beam 1a, a microcomputer as control means for controlling the driving device 27 based on the detection signals of the displacement meters 30, 30
33 are provided.

In such a configuration, for example, when the passengers who got into the car room 4 are arranged in one place, the balance of the center of gravity of the car 5 is broken and the car 5 tilts left and right. Levers 14 of each roller guide mechanism 11, 11,
14 is pivotally displaced relative to the car 5 around the pivot shafts 13, 13, and the amount of this rotational displacement is detected by the displacement meters 30, 30 as the magnitude of the inclination of the car 5, A signal of the detection information is sent to the microcomputer 33. The microcomputer 33 calculates the information and controls the driving device 27 with a signal based on the calculation. Based on the control, the weights are adjusted so that the balance of the center of gravity of the car 5 is balanced.
26 is driven to correct the inclination of the car 5. Therefore, the springs 19, 19 of the roller guide mechanisms 11, 11 are not excessively bent, that is, the car 5 is prevented from running while the stoppers 20, 20 are in contact with the levers 14, 14. As a result, the car 5 does not roll due to the deformation of the guide rails 10.

In the above description, it is assumed that the car 5 tilts left and right, and the correction is made. However, in addition to the weight moving in the left and right direction of the car 5, a weight moving further in the front-rear direction is provided. In addition, it is also possible to configure such that when the car leans back and forth and right and left by these weights, it is corrected.

3 and 4 show a second embodiment of the present invention. In this second embodiment, the weight 26 is driven by a linear motor, that is, the weight 26
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 so as to be opposed to each other. A linear motor 38 is provided between a support plate 37 provided on the upper part of the beam 1a and the upper surface of the weight 26, and the weight 26 is moved along the rails 36 and 36 by the operation of the linear motor 38. 5 is configured to adjust the balance of the center of gravity. The means for driving the weight 26 using the linear motor 38 has an advantage that the weight 26 can be quickly moved with low vibration.

[Effects of the Invention] As described above, according to the present invention, when an eccentric load is applied to a car and the car is tilted, it can be corrected via weights, and therefore, the roll caused by the tilt of the car There is an advantage that a good ride quality can always be maintained by preventing the vehicle.

[Brief description of the drawings]

FIG. 1 is a front view of an elevator apparatus according to a first embodiment of the present invention, FIG. 2 is an enlarged front view showing a main part thereof, and FIG. 3 is a view of the elevator apparatus according to a second embodiment of the present invention. FIG. 4 is a front view showing an enlarged view of the main part, and FIG.
FIG. 1 is a front view of a conventional elevator apparatus, and FIG. 6 is a front view of a roller guide mechanism of the elevator. 5… Car, 10… Guide rail, 15… Wheels, 26…
… Weight (inclination adjustment means), 27 …… drive device, 30 ……
Displacement meter (tilt detecting means), 33 ... microcomputer (control means).

Claims (1)

(57) [Claims] A car is provided with a wheel which can be elastically displaced and rolls on the guide rail by its elastic force, and the car runs along the guide rail by rolling contact between the wheel and the guide rail. A weight adjusting means for adjusting the balance of the center of gravity of the car by driving a weight with a driving device; an inclination detecting means for detecting an inclination of the car based on the displacement of the wheel; An elevator apparatus comprising: control means for controlling the driving device based on a signal when the inclination of the car is detected, and moving the weight to correct the inclination of the car.