JP2002145554A - Guide device of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent generation of vibrations of an elevator car caused by unfixed rails without increasing the size or weight of the whole of a guide device. SOLUTION: Rollers 10a, 10b, and 10c are mounted in the guide device, and the rollers run along a guide rail. The rollers 10a and 10c are attached to levers 11a and 11c, and the levers 11a and 11c are supported at a base 13 with lever fixing pins 12a and 12c rotatably around the lever fixing pins 12a and 12c. The levers 11a and 11c are connected to each other with a connecting member 20. A connecting member fixing pin 22a for connecting the lever 11a and the connecting member 20 is attached on the side farther than the lever fixing pin 12a from the roller 10a, and a connecting member fixing pin 22c for connecting the lever 11c and the connecting member 20 is attached on the side nearer than the lever fixing pin 12c from the roller 10c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator guide device, and more particularly to an elevator guide device for guiding a car along a guide rail in a hoistway.

[0002]

2. Description of the Related Art Generally, in an elevator, as shown in FIG. 6, a car 1 is supported by a car frame 2, and the car frame 2 is suspended from above by a rope 3. Guide devices 4 are attached to the car frame 2 at two places in the upper part and two places in the lower part, that is, four places in total. The guide device 4 is in contact with a guide rail 5 installed in the hoistway, and the car 1 moves up and down the hoistway along the guide rail 5.

By the way, the guide device 4 has a guide rail 5
If there is a disturbance such as bending of the guide rail 5 or a step at the joint between the guide rails 5, these disturbances are transmitted to the car 1 via the guide device 4, and the disturbance of the car 1 Excites vibration.

A conventional guide device is configured as shown in FIG. That is, the three rollers 10a, 10b, 10
The rollers 10a, 10b and 10c are rotatably supported by levers 11, respectively. Each lever 11 is rotatably supported by a base 13 via a lever fixing pin 12. Here, the lever supporting the roller 10b will be described, but the rollers 10a, 1
The lever supporting Oc has the same configuration.

The lever 11 is urged laterally by a spring 14 so that the roller 10b is pressed against the guide rail. The lateral biasing force of the spring 14 can be adjusted by a spring length adjusting member 15.
If the guide rail has an irregularity such as a bend or a step, the roller 10b is pushed and the lever 11 rotates in the opposite direction to the biasing direction of the spring 14, but since the stopper 16 is provided, Its rotation range is limited.

When the roller is pushed due to irregularities such as bending and steps on the rail as described above, the lever 11 supporting the roller is also pushed together. By absorbing, the effect of the rail irregularities on the car is reduced.

However, as the traveling speed of the elevator increases, the impact on the guide device caused by the irregularities in the rails also increases. With the conventional guide device, the impact due to the irregularities in the rails cannot be sufficiently reduced, and large vibrations occur in the car. appear.

Therefore, for example, Japanese Patent Application Laid-Open No. H10-250953
Japanese Patent Application Laid-Open Publication No. H11-163873 proposes a guide device in which a lever for supporting a roller is provided with a weight for balancing on a side opposite to the roller so as to reduce the influence of rail irregularities transmitted to the car frame.

[0009]

However, as described in the above publication, when a weight is attached to a lever that supports a roller to balance the rotation, and to reduce the influence of rail irregularities on the car, the weight can be attached. In order to achieve this, the distance between the support point of the lever and the base must be sufficiently ensured. In addition, a large weight is required to balance the rotation. Therefore, the size and weight of the entire guide device increase, and the workability of installing the guide device on the car frame also deteriorates.

An object of the present invention is to provide an elevator guide device capable of suppressing vibration of a car caused by irregular rails without increasing the size and weight of the entire guide device.

[0011]

In order to solve the above-mentioned problems, the present invention provides an elevator having a plurality of rollers, the rollers running along guide rails in a hoistway to guide a car. In the above guide device, among the plurality of rollers, a pair of rollers provided so as to sandwich the guide rail move symmetrically with respect to the guide rail.

According to the above configuration, when the impact due to the irregular rail is applied to one of the rollers and one of the rollers moves away from the guide rail, for example, the other roller provided with the guide rail interposed between the guide rail and The roller moves in the direction away from the rail, but in the direction opposite to that of the one roller. As a result, the inertial force acting on the guide device due to the irregular rail is canceled, and the vibration generated in the car can be suppressed without increasing the size and weight of the entire guide device.

The pair of rollers are rotatably provided at the ends of a pair of levers, respectively, and the pair of levers are rotatably attached to the guide device body at an intermediate portion by a pin. In the present invention, of the pair of levers, one lever is connected to the roller closer to the roller than the pin, and the other lever is connected to the farther side from the pin via a connecting member.

According to the above arrangement, one lever is connected to the roller closer to the roller than the pin, and the other lever is connected to the farther side from the pin via the connecting member. When moving in one direction, the movement of one of the rollers is transmitted to the other roller via a connecting member, and the other roller moves in the opposite direction to the one of the rollers. The acting inertial force is canceled, and the vibration generated in the car can be suppressed.

The connecting member has a shock absorber. In this case, the shock due to the irregular rail is reduced by the shock absorber, and the vibration generated in the car can be suppressed more effectively.

According to the present invention, there is provided an elevator guide device having a plurality of rollers, wherein the rollers travel along guide rails in a hoistway to guide a car. A pair of rollers provided on the left and right sides of the car move symmetrically with respect to a vertical bisector of a line connecting the pair of rollers.

In the above-described configuration, when an impact due to an irregular rail is applied to, for example, a roller on the left side of the car and the roller moves in a direction away from the guide rail, the roller on the right side of the car separates from the guide rail. It will move in the opposite direction, though in the direction, of the left roller. As a result, the inertial force acting on the guide device due to the irregular rail is canceled, and the vibration generated in the car can be suppressed without increasing the size and weight of the entire guide device.

The pair of rollers are rotatably provided at the ends of a pair of levers, respectively, and the pair of levers are rotatably attached to the guide device main body at the intermediate portions by pins. In the present invention, the pair of levers are connected by two wires, and the two wires intersect in the middle and the fixing positions of the both ends to the lever are opposite to each other across the pin. Features.

According to the above arrangement, when one of the rollers moves in a certain direction, the movement of one of the rollers is transmitted to the other roller via a wire, and the other roller moves in the opposite direction. Moved in the direction. by this,
The inertia force acting on the guide device is canceled due to the irregular rail, and the vibration generated in the car can be suppressed.

Further, the present invention provides an elevator guide device having a plurality of rollers, the rollers running along guide rails in a hoistway, and guiding a car, wherein The rollers provided on the left and right sides of the car comprise two rollers, upper and lower, and the two rollers are rotatably provided at both ends of a lever rotatably attached to the guide device main body by a pin by a pin. It is characterized by having.

According to the above configuration, when one of the upper and lower rollers moves, for example, in a direction away from the guide rail, the other roller moves in a direction approaching the guide rail.
As a result, the inertial force acting on the guide device due to the irregular rail is canceled, and the vibration generated in the car can be suppressed.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 shows an elevator guide apparatus according to Embodiment 1 of the present invention. As shown in FIG. 1, rollers 10a, 10b, and 10c are provided, and the rollers 10a and 10c are rotatably supported by levers 11a and 11c via roller fixtures 21a and 21c, respectively. The roller 10b is also rotatably supported by a lever having a similar configuration (not shown). Lever 11a, 11
c is the base 1 via the lever fixing pins 12a and 12c.
3 and supported by lever fixing pins 12a and 12a, respectively.
It is rotatable around c.

The rollers 10a and 10c contact the guide rail (disposed vertically in the center of the figure) from the front and rear to support the car frame, and the roller 10b is moved to the right or to the guide rail. The car frame is supported in contact from the left. That is, the guide rail is the roller 10
a and the roller 10c.

The lever 11a has a connecting member fixing pin 22a farther from the lever fixing pin 12a when viewed from the roller 10a side, and the lever 11c has a roller 10c.
The connection member fixing pins 22c are provided at positions closer to the lever fixing pins 12c (intermediate positions between the roller 10c and the lever fixing pins 12c) as viewed from the side.
One end of the connecting member 20 is connected to the connecting member fixing pin 2.
The other end side is rotatably connected to the lever 11c by a connecting member fixing pin 22c. Thus, the lever 11a
And the lever 11c are connected to each other by a connecting member 20.

On the contrary, when viewed from the roller 10a side, a position closer to the lever fixing pin 12a (roller 1
0a and the lever fixing pin 12a) and the connecting member fixing pin 22c at a position farther from the lever fixing pin 12c when viewed from the roller 10c side. Member fixing pin 2
The connecting member 20 may be connected by the connecting member 2a and the connecting member fixing pin 22c.

Although not shown, the levers 11a, 1
1c is provided with a spring for urging the rollers 10a and 10c toward the guide rails and a stopper for limiting the rotation range of the levers 11a and 11c. The guide device is fixed to the car frame via the base 13.

In the above configuration, when the roller 10a is moved outward (in a direction away from the guide rail) due to irregularities in the rail, the lever 11a supporting the roller 10a rotates about the lever fixing pin 12a. In 1 it tilts to the left. The connecting member fixing pin 22a for connecting the lever 11a and the connecting member 20 is provided at a position farther than the lever fixing pin 12a when viewed from the roller 10a side,
Further, since the connecting member fixing pin 22c for connecting the lever 11c and the connecting member 20 is provided at a position closer to the lever fixing pin 12c when viewed from the roller 10c side,
When the lever 11a is tilted to the left, the lever 11c is pushed by the connecting member 20, rotates around the lever fixing pin 12c, and tilts to the right in FIG. As a result, the roller 10c is moved away from the guide rail. That is, the rollers 10a and 10c move symmetrically with respect to the guide rail.

Conversely, when the roller 10a is moved inward (in the direction approaching the guide rail) due to the irregular rail,
The lever 11a supporting the roller 10a rotates about the lever fixing pin 12a and tilts rightward in FIG. As described above, the connecting position of the connecting member 20 to the lever 11a and the lever 11c is
When the lever 11a is tilted to the right, the lever 11c is pulled by the connecting member 20 and pivots around the lever fixing pin 12c. Tilt to the left. Thereby, the roller 10c is moved in a direction approaching the guide rail. That is, also in this case, the rollers 10a and 10c move symmetrically with respect to the guide rail.

When a disturbance acts on the roller 10a or the roller 10c due to the irregular rail, the disturbance is applied to the lever 11a.
Is transmitted to the lever 11c and the lever fixing pin 1
It is transmitted to the base 13 via 2a, 12c. Since the base 13 is fixed to the car frame, disturbance from the rail is transmitted to the car side.

When evaluating disturbance caused by irregularities in the rail transmitted from the rail to the car frame, the lever fixing pin 1
What is necessary is just to evaluate the force which acts on 2a, 12c. The force acting on the lever fixing pins 12a and 12c is a disturbance force received from the rail and an inertial force generated by the roller moving due to the disturbance. Disturbances directly from the rail cannot be reduced without improving the rail irregularities. There is room for reducing the inertial force generated by the movement of the rollers. When the lever 11a and the lever 11c are connected, the movements of the rollers 10a and 10c are in opposite directions.
The inertial force acting on c is in the opposite direction. That is, the inertial force transmitted to the base 13 through the lever fixing pins 12a and 12c is canceled and becomes zero. Therefore, the influence of disturbance due to irregular rails transmitted to the car frame is reduced, and lateral vibration of the car can be reduced.

(Embodiment 2) FIG. 2 shows an elevator guide apparatus according to Embodiment 2 of the present invention. As shown in FIG. 2, in the present embodiment, a shock absorber 25 is provided instead of the connecting member 20 in the first embodiment,
One end of the shock absorber 25 is connected to the lever 11a via the shock absorber fixing pin 26a, and the other end is connected to the shock absorber fixing pin 26c.
Are respectively connected to the levers 11c.

In the above configuration, when the roller 10a or the roller 10c is moved due to the irregular rail, the levers 11a and 11c rotate, and the shock absorber fixing pins 26a and 2c are rotated.
The position of 6c moves. Shock absorber fixing pins 26a, 26
When the position c moves, displacement occurs at both ends of the shock absorber 25, and the energy of the movement of the rollers 10a and 10c is absorbed by the shock absorber 25, so that the inertial force transmitted to the base 13 decreases. If the viscous resistance of the shock absorber 25 is sufficiently large,
The roller 10a and the roller 10c move in opposite directions, and the base 1
The inertial force acting on 3 works in the canceling direction. As a result, the influence of disturbance due to the rail irregularities on the car frame is reduced, and the lateral vibration of the car can be reduced.

(Embodiment 3) FIG. 3 shows an elevator guide device according to Embodiment 3 of the present invention. As shown in FIG. 3, in the present embodiment, the lever 11a and the lever 11c are connected by wires 30a and 30b.
Each of the wires 30a and 30b includes an inner wire and an outer wire, and the outer wire serves as a guide for the inner wire.

One end of the wire 30a is fixed to the base 13 by a base-side fixing member 31a, and the other end of the wire 30a is fixed to the base 13 by a base-side fixing member 31d. One end of the inner wire is connected to a lever by a lever-side fixing member 32a. The other side is fixed to the lever 11c by a lever-side fixing member 32d. The wire 30b has one side of the outer wire fixed to the base 13 by the base side fixing member 31b and the other side to the base 13 by the base side fixing member 31c, and one end of the inner wire is connected to the lever 11a by the lever side fixing member 32b. The other side is fixed to the lever 11c by a lever-side fixing member 32c.

The base side fixing member 31a and the lever side fixing member 32a are disposed closer to the lever 10a than the lever fixing pin 12a when viewed from the roller 10a. The base side fixing member 31d and the lever side fixing member 32d are separated from the roller 10c. Seen on the side farther than the lever fixing pin 12c when viewed. When viewed from the roller 10a, the base fixing member 31b and the lever fixing member 32b are connected to the lever fixing pin 12a.
The base-side fixing member 31c and the lever-side fixing member 32c are disposed closer to the lever 10 than the lever fixing pin 12c when viewed from the roller 10c. That is, the wire 30a and the wire 30b are provided to cross each other.

In the above configuration, when the roller 10a is moved outward (in a direction away from the guide rail) due to irregular rails, the lever 11a tilts to the left in FIG. When the lever 11a is tilted to the left, the inner wire of the wire 30a is moved below the lever 11c (the lever-side fixing member 32).
d), whereby the lever 11c is tilted rightward in FIG. 3 and the roller 10c is moved away from the guide rail.

When the roller 10a is moved inward (in a direction approaching the rail) due to irregularities in the rail, the lever 11a tilts rightward in FIG. When the lever 11a tilts to the right, the inner wire of the wire 30b pulls the upper part of the lever 11c (lever-side fixing member 32c), whereby the lever 11c tilts to the left in FIG.
c is moved in a direction approaching the guide rail.

As described above, also in the case of the present embodiment, the rollers 10a and 10c move symmetrically with respect to the guide rail, so that the influence of disturbance due to rail irregularities on the car frame can be reduced. As a result, the lateral vibration of the car can be suppressed.

(Embodiment 4) FIG. 4 shows an elevator guide device according to Embodiment 4 of the present invention. FIG. 4 illustrates a roller portion that supports the left and right directions of two guide devices installed above the car frame. In one guide device, two of the three rollers are involved in support in the front-rear direction, and the remaining one roller is involved in support in the left-right direction. Therefore, the lever of two rollers in one guide device can be connected in the front-rear direction to reduce the influence of rail irregularities. However, since there is one roller in the left-right direction, another guide at the top is provided. It is connected to the rollers in the left and right direction of the device.

In this embodiment, a lever 11b supporting the roller 10b and a lever 11d supporting the roller 10d are used.
Are connected by a wire 30c and a wire 30d. The action occurring between the wire and the lever is basically the same as the connection of the lever in the front-rear direction described in the third embodiment. In the drawings, reference numerals 21b and 21d denote lever fixing pins, 31e and 31f denote base-side wire fixing members, 32
Reference numerals e and 32f denote lever-side fixing members.

In the above configuration, when the roller 10b is moved in a direction away from the rail due to irregularities in the rail, the wire 30b attached to the lever-side wire fixing member 32f is moved.
The inner wire c is pulled, the lever 11d attached to the other end of the wire 30c is pulled by the inner wire, and the roller 10d is moved away from the rail.

When the roller 10b is moved in a direction approaching the rail due to the irregular rail, the lever-side wire fixing member 3
2e, the inner wire of the wire 30d is pulled, the lever 11d attached to the other end of the wire 30d is pulled by the inner wire, and the roller 10d is pulled.
Is moved toward the rail.

As described above, when one of the levers 11b and 11d supporting the left and right directions of the two guide devices moves in the direction away from the rail, the other also moves in the direction away from the rail. When moving toward the rail, the other moves toward the rail. As a result, the inertial force acting on the lever fixing pins 12b and 12d can be canceled, and the lateral vibration of the car can be reduced.

(Fifth Embodiment) FIG. 5 shows a guide device according to a fifth embodiment of the present invention, and is a front view when the guide device is mounted on a car frame. The two rollers that support the front-rear direction have the same configuration as in the first embodiment. In the present embodiment, the rollers that support the left-right direction include the first roller 40 and the second roller 42 disposed below the first roller 40. Is provided, and the lever 41 is rotatably supported by the base 13 via a lever fixing pin 43.

In the fourth embodiment, the roller in the left-right direction is connected to the roller of another guide device to cancel the inertial force. In the present embodiment, the first roller is connected to the lever fixing pin 43 as a center. 40 and the second roller 42 are connected to each other by a lever 41.

Also in this embodiment, the lever fixing pin 43
It is possible to cancel the inertial force acting on the car frame, reduce the inertial force acting on the car frame, and reduce the vibration of the car.

In the present embodiment, the first roller 40
And the second roller 42 support the left and right directions, so that the load applied to the roller is dispersed, and the abrasion of the elastic member made of rubber or the like mounted on the outer peripheral surface of the roller can be reduced.

[0048]

As described above, according to the present invention,
Since only a connecting member, a wire, and the like are attached to the conventional guide device, it is possible to suppress the vibration of the car caused by the irregular rail without increasing the size and weight of the entire guide device.

[Brief description of the drawings]

FIG. 1 is a side view of an elevator guide device according to a first embodiment of the present invention.

FIG. 2 is a side view of an elevator guide device according to a second embodiment of the present invention.

FIG. 3 is a side view of an elevator guide device according to a third embodiment of the present invention.

FIG. 4 is a front view of an elevator guide device according to a fourth embodiment of the present invention.

FIG. 5 is a front view of an elevator guide device according to a fifth embodiment of the present invention.

FIG. 6 is a perspective view showing a schematic configuration of an elevator.

FIG. 7 is a perspective view of a conventional guide device for an elevator.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Riding car 2 Car frame 3 Rope 4 Guide device 5 Guide rail 10a, 10b, 10c, 10d Roller 11a, 11b, 11c, 11d Lever 12a, 12b, 12c, 12d Lever fixing pin 13 Base 14 Spring 15 Spring length adjusting member 16 Stopper 20 Connecting member 21a, 21b Roller fixing tool 22a, 22b Connecting member fixing pin 25 Buffer 26a, 26b Buffer fixing pin 30a, 30b, 30c, 30d Wire 31a, 31b, 31c, 31d, 31e, 31f Base Side wire fixing member 32a, 32b, 32c, 32d, 32e, 32f Lever side wire fixing member 40 First roller 41 Lever 42 Second roller 43 Lever fixing pin

Claims (6)

[Claims] 1. An elevator guide device having a plurality of rollers, wherein the rollers travel along guide rails in a hoistway to guide a car, wherein the guide rails of the plurality of rollers are An elevator guide device, wherein a pair of rollers provided between the guide rails move symmetrically with respect to the guide rail. 2. The guide device for an elevator according to claim 1, wherein the pair of rollers are rotatably provided at ends of a pair of levers, respectively, and the pair of levers is a guide device main body with a pin at an intermediate portion. The one lever of the pair of levers is connected to the roller closer to the roller than the pin, and the other lever is connected to the farther side of the pin via a connecting member. Elevator guide device. 3. The elevator guide device according to claim 2, wherein the connecting member has a shock absorber. 4. An elevator guide device having a plurality of rollers, wherein the rollers travel along guide rails in a hoistway to guide a car, wherein the elevator includes a plurality of rollers. A pair of rollers provided on the left and right sides move symmetrically with respect to a vertical bisector of a line connecting the pair of rollers. 5. The elevator guide device according to claim 1, wherein the pair of rollers are rotatably provided at ends of a pair of levers, respectively, and the pair of levers has an intermediate portion guided by a pin. The pair of levers are rotatably attached to the apparatus main body, and the pair of levers are connected by two wires, and the two wires intersect in the middle and both ends are fixed to the lever with the pins interposed therebetween. An elevator guide device, which is the reverse. 6. An elevator guide device having a plurality of rollers, wherein the rollers travel along guide rails in a hoistway to guide a car, wherein the elevator includes a plurality of rollers. The rollers provided on the left and right are composed of two upper and lower rollers, and the two rollers are rotatably provided at both ends of a lever rotatably attached to the guide device body by a pin at an intermediate portion. Elevator guide device.