JP2000016718A - Rope steadying device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To relax an impact at time of collision, reduce a large collision sound and a damage accident of an equipment, form a device capable of corresponding to even a high speed elevator, and decrease swaying amplitude of a rope due to an earthquake and wind pressure, so that the device can be adopted even for a high building. SOLUTION: A plurality of movable receiving parts connected capable of mutually being associated by a connection means to be formed capable of respectively abutting on a hoist way side receiving base and a car are provided. The connection means is formed as a belt 48 supported turnably by a pair of upper/lower shafts journalled respectively by a set of bearings capable of being rotation braked, a plurality of the movable receiving parts are moved to be associated, so as to absorb and disperse an impact when the movable receiving part collides against the hoist way side receiving base 10 or the car.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided in a hoistway between an elevator hoist and a car having a long ascending and descending stroke, and limits the range of lateral sway of a main rope (hereinafter referred to as a rope). The present invention relates to a rope steadying device for an elevator that performs a steadying of a rope by using the same.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show an example of an elevator equipped with a conventional rope steadying device. FIG.
FIG. 8 is a front view showing a state in which the elevator car is on the lower floor and the rope steadying device is placed in the hoistway, and FIG. 8 is a plan view of the same. In the figure, hoistway 1 has walls 2 on all sides.
A cage 7 formed by a car upper beam 4, a car frame 5, and a car floor 6 to which one ends of a plurality of ropes 3 are fixed rises and falls. The rope 3 is fixed to the car upper beam 4 by a rope stopper 8.

The conventional elevator has a structure in which a single-stage, ie, one set, of a rope steadying device 9 is mounted and positioned on a hoistway-side pedestal 10 fixed to a wall 2 in a hoistway 1. I have. As shown in FIG. 8, an opening 9a for inserting a plurality of ropes 3 is provided at the center, and the rope 3 is passed through the opening 9a, and the rope steadying device 9 is placed at a position where the amplitude of the rope 3 becomes large. The installation restricts the horizontal swing of the rope 3 and prevents a trouble in which the rope 3 is caught by a protrusion or other device in the hoistway 1.

[0004] When the car 7 waiting on the lower floor departs and rises to the place where the rope steadying device 9 is installed, the car 7
The car-side pedestal 11 installed on the car upper beam 4 collides with the rope steadying device 9 and lifts the rope steadying device 9 upward as it is.

Conversely, when the car 7 waiting on the upper floor leaves and descends to the hoistway-side cradle 10, the car upper beam 4
Rope rest device 9 placed on car side receiving stand 11
Collides with the hoistway side cradle 10. And basket 7
The rope rest device 9 is placed on the hoistway-side pedestal 10 and heads to the lower floor.

[0006]

In the conventional elevator rope steadying device 9 having the above-described structure, when the car 7 rises and the car-side pedestal 11 collides with the rope steadying device 9,
There is a problem that a loud collision sound is generated by the impact of the collision, and that the shock of the buffer portion of the car-side pedestal 11 is likely to be damaged due to the repetition of the impact.

When the car 7 descends, the rope steadying device 9 mounted on the car-side cradle 11 collides with the hoistway-side cradle 10. At this time, the impact force of the collision is also intense, and there is a problem that a loud collision sound is generated, and damage to components of the elevator system occurs in a short time.

Further, when the elevator speed is high, the impact force of the collision is further increased.
There is a problem that the method cannot be applied to a high-speed elevator of 0 m / min or more and a passenger elevator in which the collision sound is a concern even if the speed is less than 0 m / min.

[0009] Further, for elevators having an ultra-high ascending and descending stroke exceeding 100 m, in which multiple-node rope sway of one or more nodes occurs due to an earthquake or wind pressure, the current device obtains a sufficient rope anti-sway effect. Can not be performed, and in the event of an event such as an earthquake,
Since there is a great danger that the swing amplitude of the rope becomes large, it is necessary to stop the elevator as soon as possible or to stop it so that it cannot be used, so that there is a problem that the use is restricted.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has been made to sufficiently absorb an impact.
Reduces equipment damage accidents with lower noise than before, long life, good ride comfort, can respond to higher speeds, and also performs sufficient anti-sway of ropes to improve safety against earthquakes and wind pressure, It is an object of the present invention to provide an elevator rope steadying device which can cope with a case where a building becomes increasingly high-rise and a lift stroke of the elevator becomes longer, and which provides a sense of security in the use of the elevator.

[0011]

An elevator rope steady rest according to the present invention has at least a pair of hoistway-side pedestals on the hoistway of the elevator, and has a size that abuts on the hoistway-side pedestals to be positioned. And at least one main body having an insertion portion through which a rope for suspending the elevator is inserted at the center portion in the hoistway above the car. Then, the main unit and the hoistway-side pedestal are connected to each other at positions that can be brought into contact with the hoistway-side pedestal and the car, respectively, by connecting means, so that the collision energy between the main body and the hoistway-side pedestal or the car is moved. It is provided with a plurality of movable receiving portions that convert into energy and absorb the energy.

Further, the connecting means is a belt rotatably supported by a pair of upper and lower shafts supported by a pair of bearings each capable of rotational braking.

Further, the belt is formed of an elastic material, and the movable receiving portion and the belt are connected via a buffer seat.

Furthermore, a plurality of main bodies each having a movable receiving portion abutting on the hoistway-side receiving stand are provided in multiple stages in the hoistway above the car, and the plane of the movable receiving portion provided on the upper-stage main body is provided. It is formed by shifting the position so as to be located outside the movable receiving portion of the lower main body.

Further, the movable receiving portion is provided with primary buffer means at a portion where the hoistway-side pedestal or the car collides, and the primary buffer means is an elastic member such as rubber or a spring, or , A fluid buffer means using oil or the like.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a front view of a main part of an elevator system having an elevator rope steadying device according to the present invention, and FIG. 2 is a plan view of the same.
FIG. 3 is an enlarged plan view of one side of the main body of the rope steady rest device shown in FIG. 2, and FIG. 4 is a longitudinal sectional view taken along line AA of FIG. FIG. 5 is an enlarged view showing a movable receiving portion of the rope sway prevention device shown in FIG.
FIG. 6 is a vertical sectional view taken along line BB of FIG. 5.

In FIG. 1, a hoistway 1 is a space formed by surrounding four sides with a wall 2, in which one end of a plurality of ropes 3 is fixed, a car upper beam 4, a car frame 5, and a car floor. A car 7 comprising 6 is adapted to move up and down. The rope 3 is fixed to the car upper beam 4 by a rope stopper 8.

A pair of hoistway-side pedestals 10 are fixed to the surfaces of the opposing walls 2 of the hoistway 1 above the car 7, and the rope rest device 1 is mounted on a horizontal surface 10 a thereof.
5 can be placed.

The rope steadying device 15 includes a main body 20.
And movable receiving portions 40 provided at both ends of the main body 20. As shown in FIGS. 2, 3, and 4, the main body unit 20 includes a pair of upper frames 21 having a rectangular cross section arranged in parallel with each other, and a lower frame 22,
It is configured to include two upper reinforcing horizontal frames 23 having an L-shaped cross section, a lower reinforcing horizontal frame 24, and two reinforcing vertical frames 25 and 26 each having the same L-shaped cross section. An insertion portion 20a through which the rope 3 is inserted is formed in the center of the main body 20.

Further, in order to support the movable receiving portion 40 so as to be able to move up and down, a pair of hollow cylindrical hoistway side upper guides 31 and a hollow cylindrical hoistway side are provided on both side surfaces of the main body 20. A lower guide 32 is provided. A pair of car-side upper guides 33 and a car-side lower guide 34 each having a hollow cylindrical shape are provided in portions of the main body 20 that are slightly inward on both side surfaces. Further, on the lower surface of the upper frame 21, a hollow cylindrical upper friction bearing 35 is attached at an intermediate position between the hoistway-side upper guide 31 and the car-side upper guide 33, and similarly, on the upper surface of the lower frame 22. A hollow cylindrical lower friction bearing 36 is mounted at an intermediate position between the hoistway lower guide 32 and the car lower guide 34.

In the movable receiving portion 40, as shown in FIGS. 5 and 6, a pair of cylindrical hoistway-side moving rods which are vertically movably supported by a hoistway-side upper guide 31 and a hoistway-side lower guide 32. 41, and a pair of cylindrical car-side moving rods 42 which are also movably supported up and down by a car-side upper guide 33 and a car-side lower guide 34, which are connected by connecting plates 43 and 44, respectively. Are linked. The connecting plates 43 and 44 are provided with mounting plates 45.
Each of the mounting plates 45 is connected to a belt 48 via a buffer seat 46 and a belt mounting plate 47.

The belt 48 has an upper rotating shaft 49 supported by a pair of upper friction bearings 35 and a pair of lower friction bearings 36.
And a lower rotating shaft 50 pivotally supported by the shaft. The upper friction bearing 35 rotates with a constant frictional force with respect to the upper rotating shaft 49, and similarly, the lower friction bearing 36 rotates with a constant frictional force with the lower rotating shaft 50. It is supposed to. The movable receiving portion 40 is connected to the main body portion 20 of the rope steadying device 15.
Are provided symmetrically with respect to.

The main body 20 of the rope steadying device 15 having the above-described structure is provided with an insertion portion 20 provided at the center of the main body 20.
By passing the rope 3 through a, it is possible to limit the swing of the rope 3 to a certain range, and to prevent the rope 3 from being caught by a protrusion in the hoistway 1 or another device.

The hoistway-side moving rod 41 and the car-side moving rod 42, which are the main parts of the movable receiving part 40, respectively move the hoistway-side pedestal 10 and the hoistway-side pedestal 10 in accordance with the two directions of lowering and rising of the elevator. It collides with the cradle 11 alternately, moves upward due to the impact at the time of the collision, and buffers the impact at the time of the collision. At this time, the hoistway-side moving rod 41 and the car-side moving rod 42 work in opposition to each other, with the function of the connecting means such as the belt 48, such that when one moves upward, the other moves downward. Since the belt 48 is formed of an elastic member, and the space between the hoistway-side moving rod 41 or the car-side moving rod 42 and the belt 48 is connected via the buffer seat 46, the hoistway-side moving rod The abrupt movement of the moving rod 41 and the car-side moving rod 42 can be dispersed and received throughout the movable receiving portion 40.

Hereinafter, the operation of the movable receiving portion 40 will be described in detail.

FIG. 6 shows that the rope steadying device 15 is
, The lower end portion 42a of the car-side moving rod 42 is in contact with the car-side cradle 11 and also in contact with the car-side lower guide 34, and is shown as being pushed upward.
At this time, since the hoistway-side moving rod 41 and the car-side moving rod 42 are connected to each other by the belt 48, the upper end 41b of the hoistway-side moving rod 41 is in contact with the hoistway-side upper guide 31 on the contrary. , Is in a state of being pushed down.

In this state, when the elevator car 7 descends in response to the call of the lower floor, the lower end 41a of the hoistway-side moving rod 41 collides with the horizontal surface 10a of the hoistway-side pedestal 10, and
It is pushed up to the position of the hoistway side lower guide 32. In the present embodiment, the lower end 4 of the hoistway-side moving rod 41
The tip portion against which 1a collides has a structure formed by including an elastic material such as rubber or a spring, so that the impact at the time of the collision can be primarily absorbed and the impact at the time of the collision can be further reduced. The lower end portion 42a of the car-side moving rod 42 is also formed of an elastic material such as rubber or a spring, and the car-side pedestal 11
It can absorb the impact at the time of collision.

A cushioning seat 46 made of an elastic material such as rubber having sufficient elasticity is attached between the attaching plate 45 and the belt attaching plate 47, and a pair of hoistway-side moving rods 41 are integrally formed. Since the connecting plate 43 is fixed to the belt 48 via the buffer seat 46, the impact at the time of collision of the hoistway-side moving rod 41 is secondarily absorbed by the buffer seat 46. Similarly, at the time of collision of the car side moving rod 42,
Shock absorption.

When a pair of hoistway-side moving rods 41 collide with each other, the energy is transmitted to the moving belt 48 via the buffer seat 46, and the upper rotating shaft 49 and the lower rotating shaft 50 are rotated. The upper rotating shaft 49 has an upper friction bearing 35 having a structure capable of braking against rotation, and the lower rotating shaft 50 also has a lower friction bearing 36 having a structure capable of applying braking to rotation. Therefore, the belt 48 can be braked. Therefore, the impact at the time of collision can be tertiarily absorbed by braking by these bearing portions. In the event of a collision of the car-side moving rod 42, the impact is similarly absorbed by the bearing.

The lower ends 41a of the pair of hoistway-side moving rods 41 that move at the time of collision collide with the hoistway-side lower guide 32 when the car descends. At this time, the car side moving rod 42
Since it is fixed to the belt 48 via the buffer seat 46,
It moves together with the hoistway-side moving rod 41 and the car-side moving rod 42
Upper end portion 42b collides with the car side upper guide 33. In this collision, since the upper end 42b of the car-side moving rod 42 has an elastic structure such as rubber or a spring, the impact at the time of the collision can be absorbed four times.

On the other hand, when the rope steadying device 15 is on the hoistway side, that is, the lower end 4
When 1a is in contact with the hoistway-side pedestal 10, an operation is performed in the opposite direction to the operation described above, in which the hand of the hoistway and the car in FIG. 6 are replaced.

According to the configuration of the present embodiment, the main body 20
The energy of collision between the vehicle and the hoistway-side pedestal 10 or the car-side pedestal 11 is converted and absorbed into the moving energy of each component of the movable receiving portion 40 which is the impact reducing means, and the impact is sufficiently buffered. And the collision noise is reduced, and it can cope with the high speed of the elevator.

Embodiment 2 FIG. In the first embodiment, the main body portion provided with the movable receiving portion is provided in one, that is, only one stage. However, a plurality of main body portions having the same configuration are provided, and the movable receiving portion provided in the upper main body portion is provided. May be provided in multiple stages in the hoistway above the car by shifting the planar position of the lower stage so as to be located outside the movable receiving portion of the lower main body.

In this case, by gradually arranging the receiving portion of the upper-layer rope anti-sway device, a plurality of rope anti-sway devices are arranged in a multi-stage structure to suppress the rope deflection at a plurality of locations. Therefore, even when the building becomes a super-high-rise building, a sufficient rope anti-sway effect can be obtained.

It should be noted that the plane position of the movable receiving portion provided on the upper stage main body portion is made to coincide with the planar position of the movable receiving portion of the lower stage main body portion, and the rope steadying device 15 is provided in the hoistway above the car.
May be provided in multiple stages.

Embodiment 3 In the configuration of the above embodiment, not only the end of the hoistway-side moving bar and the car-side moving bar, but also on the upper surface portion of the hoistway-side cradle and the car-side cradle, an elastic member such as rubber or a spring, or oil or the like. By using the well-known primary buffering means including the fluid buffering means in combination, it is possible to obtain better effects of buffering the impact force and reducing the impact noise.

[0037]

Since the present invention is configured as described above, it has the following effects.

That is, a plurality of movable receiving portions which can be interlocked with each other by a connecting means are provided, and the collision energy between the main body portion and the hoistway-side pedestal or the car is converted into the moving energy of the constituent members and absorbed, whereby the rope is provided. Reduces the impact force and collision sound when the anti-sway device collides with the car frame or the hoistway-side pedestal, provides a comfortable ride, reduces equipment damage accidents due to distortion at impact, and prolongs the life of elevators Can be achieved.

Further, the connecting means is a belt rotatably supported by a shaft rotatably supported by a bearing part capable of rotation braking, so that one of the movable receiving parts collides with the hoistway cradle or the car. The impact force can be converted into the moving energy of the other movable receiving portion that is interlocked and dispersed, so that the impact force and the collision sound can be significantly reduced.

The belt is formed of an elastic material, and the movable receiving portion and the belt are connected to each other via the buffer seat, so that the impact force can be further reduced, and the present invention can be applied even when the elevator speed is higher. .

By installing a plurality of steps of the rope steadying device in the hoistway, even if the building becomes a super-high-rise building, the amplitude of the rope can be limited at a plurality of positions. A sufficient rope anti-sway effect can be obtained against wind pressure and wind pressure.

The primary shock absorbing means using rubber, spring, oil, or the like is provided on the portion of the movable receiving portion that collides with the hoistway-side pedestal or the car, so that the impact of the collision can be more reliably reduced.

[Brief description of the drawings]

FIG. 1 is a front view of a main part of an elevator including a rope steadying device according to the present invention.

FIG. 2 is a plan view of an elevator including the rope steadying device according to the present invention.

FIG. 3 is an enlarged plan view of one side of a main body of the rope steady rest device shown in FIG. 2;

FIG. 4 is a vertical sectional view taken along the line AA of FIG. 3;

FIG. 5 is an enlarged plan view showing a movable receiving portion in FIG. 2;

FIG. 6 is a vertical sectional view taken along line BB of FIG. 5;

FIG. 7 is a front view of a main part of an elevator including a conventional rope steadying device.

FIG. 8 is a plan view of an elevator provided with a conventional rope steadying device.

[Explanation of symbols]

1 hoistway, 3 ropes, 4 cars, 7 cars, 1 car
0 hoistway-side pedestal, 11 car-side pedestal, 20 body part, 20a insertion part, 40 movable receiving part, 41 hoistway-side moving rod, 42 car-side moving rod, 46 buffer seat, 48 belt, 49, 50 rotating shaft.

Claims (6)

[Claims] At least one pair of hoistway pedestals is provided on an elevator shaft of an elevator, and the insertion portion has a size that abuts and is positioned on the hoistway pedestal, and a central portion through which a rope for suspending the elevator is inserted. In an elevator rope steadying device provided with at least one main body portion provided in the hoistway above the car, at positions where both ends of the main body portion can be in contact with the hoistway side pedestal, respectively.
An elevator rope steadying device comprising a plurality of movable receiving portions which are connected to each other by a connecting means so as to be interlockable and convert and absorb collision energy between a main body portion and a hoistway-side pedestal or a car into moving energy. 2. The connecting means includes a belt rotatably supported by a pair of upper and lower shafts supported by a pair of bearing portions each capable of rotationally braking.
An elevator rope steady rest according to any of the preceding claims. 3. The device according to claim 2, wherein the belt is formed of an elastic material. 4. The device according to claim 2, wherein the movable receiving portion and the belt are connected via a buffer seat. 5. A plane position of a movable receiving portion provided on a main body portion of an upper stage, wherein a plurality of main portions each having a movable receiving portion abutting on a hoistway side receiving stand are provided in multiple stages in a hoistway above a car. The elevator rope steadying device according to claim 1, characterized in that is formed so as to be shifted outside of the movable receiving portion of the lower-stage main body portion. 6. An elevator rope steady rest according to claim 2, wherein the movable receiving portion is provided with primary buffer means at a portion where the hoistway-side receiving stand or the car collides.