JPS61206779A - Guide apparatus for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an elevator guide device, and more particularly to an elevator guide device that is constantly subjected to unbalanced loads due to the structure of the elevator.

[Background of the invention]

Conventionally, high-speed elevators are usually equipped with a relocation-type guide device using guide rollers, since an elevator guide device with a large unbalanced load generates abnormal vibrations and noise.

This guide roller is constructed by covering the outer periphery of a metal ring with an elastic material such as rubber in order to absorb rolling noise while the elevator is running. However, if the Kanto car is stopped at the same position for a long time while the elevator is out of operation, the portion of the outer peripheral elastic body of the guide roller that contacts the guide rail becomes flattened.

For this reason, it is common knowledge that if the car is run with the elastic body flattened, the flattened portion will cause the heel of the car to shake and become a source of vibration and noise.

As a means of solving this problem,
As shown in the publication, due to its structure, the overturning reaction force due to the car's own weight always acts on the guide roller, which is made up of a pair of multiple rows 2, and the resulting deformation of the outer circumference of the roller causes displacement vibration during running. In the structure of guide rollers, one roller is fixed in a fixed position, the other roller is movable, and is supported by an elastic body such as a spring, and displacement vibration is converted into force motion, and vibration caused by the roller is converted into an elastic body. A method for absorption by the body has been proposed.

However, in a hydraulically driven elevator that mainly uses the above-mentioned guide device, the fluffy vibrations that occur when the elevator car stops and when passengers get on and off, which is a unique phenomenon of this hydraulically driven elevator, are caused by rollers with low frictional resistance. However, because of the use of

As a means of solving this problem, Japanese Patent Application Laid-Open No. 55-7498
In Publication No. 1, a fixed roller and a movable guide shoe are used together,
When the car is stopped for a long time, that is, when there is no load, the movable guide shoes bear the load of the car falling over, thereby eliminating the flattening of the fixed rollers, thereby preventing the occurrence of transfer vibration when the fixed rollers are running. Furthermore, a method has been proposed in which the frictional resistance between the movable guide shoe and the guide rail suppresses fluffy vibrations when the elevator car is stopped and when passengers get on and off the elevator car. However, with this guide device, the movable guide shoe bears all the overturning load M of the car when there is no load, and even when a load is applied due to passengers boarding K,
Since the movable guide shoe receives the load until it touches the fixed roller, excessive frictional resistance between the movable guide shoe and the guide rail means that the rope or single rod spring is compressed 1-
The moment the car starts moving, it opens all at once, which caused a problem in which a fluffy image of the car was taken.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a new elevator guide system that eliminates the problems of the conventional elevator and is free from vibration, noise, or shock during elevator operation.

[Summary of the invention]

Sixth aspect of the present invention to achieve the above object is to provide a movable guide roller that is always pressed against the guide rail with a predetermined pressure and a movable guide shoe that is always pressed against the guide rail with a predetermined pressure, which are arranged side by side to prevent the car from overturning. The load is always shared between the two.

[Embodiments of the invention]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 6, taking a hydraulically driven elevator as an example.

First, FIG. 4 shows the overall configuration of a hydraulically driven elevator. One end of the car 1 is connected to a lifting device 2 connected under the floor, and the other end is suspended by a rope 6 fixed to a hoistway wall 5 via a sheave 4. And, above and below the left and right of the passenger car 1, there are guide rails 7A installed in the hoistway.
Guide devices 10A to IOD are mounted to face guide rails 7B, and are engaged with the guide rails 7A and 7B to guide the guide rails only in the vertical direction. During ascending operation, hydraulic pressure is applied from a separate hydraulic power unit 11 to a cylinder 13 fixed to the hoistway wall 5 through a pressure pipe 12. Then, the plunger 14, which moves up and down along the guide rails 15A and 15B, is pushed up and the rope 6'f
: Raise the wrapped sheave 4, thereby raising the above-mentioned ride and 1
t-push up.

On the other hand, during descending operation, no hydraulic pressure is applied, and the weight of the seat and seat 1 is used to lower the seat. In the hydraulically driven elevator of this structure, the car hoisting position is located at the end of the lifting device 2, which is away from the center of gravity of the car 1, and is eccentric. An overturning moment always acts in the direction, and the guide device 10 receives a load to support this overturning moment.

Next, the structure of the multiplication lever 1 will be explained with reference to FIGS. 5 and t46. Passenger car 1 consists of a car frame and a car compartment.

The car frame is strongly constructed of a floor frame 21, a vertical frame 22, a pair of front columns 23, a pair of rear columns 24, a joint 25, a joint material 26, and a re-rod 27. A cage consisting of gray water 31, side plates 32, and ceiling 33 is assembled. At the front of the car room are doors 34A and 34B, a rail frame 351C attached to the front pillar 23, and a hanger 36, respectively.
The door is opened and closed by a door opening/closing device (38) which is suspended from the door opening and closing device (38) and fixed to a base (37) attached to the above-mentioned coupling (25). Further, the vertical frame 2 is located below the floor frame 21.
An emergency stop device 39 is provided at the lower end of 2, and the seat and 1
When the rope 6 (not shown) suspending the 1 is cut, it automatically gets caught in the guide rails 7A and 7B (not shown) to prevent the east heel 1 from falling. Furthermore, as shown in FIG. 6, a lifting device 2 is provided at the bottom of the floor frame 21 to lift the passenger seat 1t. FIG. 6 is a view of the passenger seat 1 from under the floor, and illustrations of the guide device and the emergency stop device are omitted. The lifting device 2 consists of a frame 41, a rod 42 connected to the rope 6, a damping spring 43, and a spring stopper 44, and is attached to a hanging bracket 45 provided at the lower part of the floor frame 21 via a shaft 46t. The frame 41, suspension bracket 45, and shaft 46 have a structure with sufficient strength to support the entire weight of the passenger seat 1 and the passenger. Further, the damping spring 43 has a spring constant set so as to damp vibrations transmitted from the rope 6 to the seat 1.

Next, the guide device 10 (IOA to 10D) of the present invention is installed on the left and right, upper and lower sides of the passenger car 1 having the above configuration, so as to face the guide rails 7A and 7B.
While receiving the overturning load, the car engages with guide rails 7-A and 7B and guides the car 1't-up and down. The guide device 10 of the present invention will be explained in detail below with reference to FIGS. 1 to 3. 1st
The figure is a partially cutaway perspective view corresponding to section P in FIG. 4, and the guide device [10] is roughly divided into a guide roller assembly and a guide shoe assembly. First, to explain the structure of the guide roller assembly, the guide roller assembly includes a bracket 41 attached to the joint 25 with a port 49, a lever 42,
Fulcrum shaft 43, roller shaft 44, roller 45, spring shaft 46,
The fulcrum shaft 43, roller shaft 44, and spring shaft 46 are provided with fixing nuts 43a and 44a, respectively.
, 46a are used. The bracket 41 includes a fixed member 41a, a fulcrum bearing member 41b1 and a spring bearing member 41C1.
The guide shaft is made up of a mounting member 41d, and each member is firmly integrally constructed by welding. The roller 45 is supported by a lever 42 by a roller shaft 44 and a nut 44a, and the lever 42 is supported by a fulcrum shaft 43 and a nut 43a.
It is attached to a fulcrum bearing member 41b that is integral with the bracket 41. Therefore, the row 245 can freely rotate about the fulcrum shaft 43. Also, bracket 4
A spring shaft 46 extends from the first spring bearing member 41c through the lever 42, and a spring seat 48 and a nut 46 are attached to the extending end of the spring shaft 46.
By attaching a't-, the spring 47 is held and a spring force is applied to the lever 42. As mentioned above, the roller 245 can rotate around the fulcrum shaft 43, so when the nut 46a is tightened, the spring 47 is deflected, which allows the roller 245 to be pressed against the guide rail 7. The reaction force against the overturning load can be obtained.

The reaction force of this roller can be freely adjusted by changing the deflection of the spring. Further, the row 245 is the same as the conventional one in that an elastic body 45b such as rubber is bonded to the outer periphery of the row 2 main body 45a made of metal to absorb vibrations and noise during elevator travel.

Next, the configuration of the guide shoe assembly will be explained. The guide shoe assembly includes a main body 51, a shaft 52, a shoe receiving plate 53, and a shoe 5.
4. Consists of a spring seat 57, a spring 58, and a nut 59,
It is attached to the guide shoe attachment member 41d by a port 60. The shoe 54 is a part that slides on the guide rail 7, and is made of, for example, a plastic material having an extremely small coefficient of friction, and is attached to the shoe receiving plate 53 by ports 55 and 56. Further, the shaft 52 and the shoe receiving plate 53 are connected by welding, and the shaft 52 is attached by passing through the spring 58 and the spring seat 57, and passing through both legs of the U-shaped main body 510, and is secured with a nut 59. ing. Now, with the nut 59 tightened and the spring 58 bent, the shoe 54 should lightly touch the guide rail 7 so that the main body 51
By fixing the shoe 5 to the guide shoe mounting member 41d and loosening the nut 59, the pushing force due to the spring deflection is released and the shoe 5
4 can be attached to the guide rail 7.

As a result, as in the case of the guide roller 45 described above, it comes to receive the overturning load of the car. This guide shoe assembly is usually mounted at an easily visible position above the roller 45 so that the spring can be easily set.

The configurations of the guide roller assembly and guide shoe assembly have been described above, and next, the overall method of setting the guide roller assembly and guide shoe assembly will be described.

The initial spring deflections and initial reaction forces of the springs 47 and 58 are set so that the overturning load of the rider shoe 1 is shared between the guide shoe 45 and the guide shoe 54 when no load is applied. Install it so that the center of the rail 1 and the center of the rail 7 match. Here, the spring constant of the spring 47 of the guide roller 45 is as follows.

The initial spring deflection is δ1, and the reaction force is P! I, the spring constant t" k I % of the spring 58 of the guide shoe 54, the initial spring deflection δ1, the reaction force Ps, and the overturning load of the car under no load as RN, RN=PR+Pg, P*= To*
・8m1. s Ps = ks ・
δ1 electric power siR*=ki ・δit+ks ・δ
It becomes 11. By arbitrarily setting the spring constants kR, ks and initial spring deflection δl++δB+ of each of the guide roller 45 and guide shoe 54, it is possible to determine the share of the overturning load when no load is applied.

Next, when a load is applied due to the arrival of cargo, the overturning load on the car increases, but the spring 47 of the guide roller 45 and the spring 58 of the guide shoe 54 deflect, so that the overturning load of the car is balanced out. Force can be generated automatically. Now, assuming that the deflection of the spring 47 of the guide roller 45 due to the load is δ3□, the deflection of the spring 58 of the guide shoe 54 is δB2, and the overturning load of the car under load is Kari, RL=P* +Ps, PR= km
X (amr+ant) +Ps =ks
From X (δ@!+δ12), Rt, = km
X(δ1+2m2)+kgX(δ8[+δ■).

Here, since the distance between the guide roller 45 and the guide shoe 54 is extremely small compared to the distance between the upper and lower guide devices 10A to 10D of the seat 1, the spring deflection δl due to the load on the guide roller 45 and the load on the guide shoe 54 are The spring deflection δs2 is approximately equal to δs2. Therefore, the sharing ratio of the falling load between the guide roller 45 and the guide shoe 54 under load can be determined by arbitrarily setting the respective spring constants km and kg. However, if the springs 47 and 58 are deflected under load, the alignment between the seat 1 and the guide rail 7 will be shifted by an amount equal to the spring deflection. The gap becomes smaller, which adversely affects the performance of the emergency stop device 39. At 4-ca, the spring deflection under normal load is limited to about 3 mm. As explained above,
The overturning load of the car can be shared and borne by the guide rollers 45 and guide shoes 54 from no load to full load.

Next, the functions of the guide roller 45 and guide shoe 54 regarding vibration performance will be explained. First, a description will be given of the vibration caused by the transfer of the rollers when the passenger car 1 is operated after being stopped for a long time at night. As described above, in the guide roller 45, the portion of the outer circumferential elastic body 45b such as rubber that contacts the guide rail 7 receives the overturning load of the car for a long time and becomes flattened. However, in the guide device 10 according to the present invention, the overturning load of the car is absorbed by the guide rollers 45 and guide shoes 54.
Since the overturning load that the guide roller 45 can receive is smaller than conventional ones, the flattening deformation of the elastic body 45b can be reduced, and the spring 47 of the guide roller 45 can reduce the rolling vibration caused by the flattening deformation of the elastic body 45b. Because it absorbs the light, it is possible to maintain good imaging of the vehicle and the vehicle.

Next, the fluffy vibration damping effect of Rider Kato 1 will be explained. In the guide device 10 of the present invention, the guide shoe 54 is always in contact with the guide rail 7 and receives the overturning load of the rider 1, so the frictional force between the guide shoe pole 54 and the guide rail 7 suppresses fluffy vibrations. be able to. Furthermore, in the case of the present invention, the fluffy vibration of the car during steady running caused by the excessive frictional force between the guide shoe and the guide rail, which was explained in the conventional example, is caused by the guide roller 45 and the guide shoe 54 Since the load is shared, the frictional force can be made smaller than before, and this can also be improved.

As explained above, according to this embodiment, an elevator with low vibration and noise can be provided. Moreover, the guide shoe 54 of this embodiment is light.

Since it can be manufactured at low cost, it is more economical than the conventional case where a plurality of guide rows 2 are used.

In this example, the movable guide shoe is placed farther from the car than the movable guide roller, but the same effect can be obtained even if the movable guide shoe is placed closer to the car than the movable guide roller. It is clear that

〔Effect of the invention〕

According to the present invention, since the movable guide row 2 and the movable guide shoe always share the overturning load of the car, there is no transfer vibration due to flattening of the guide rollers, and the fluffy car characteristic of hydraulically driven elevators. It is possible to provide an elevator that can prevent vibration and provide a comfortable ride.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing an elevator guide device according to the present invention, Fig. 2 is a front view seen from the direction of arrow F in Fig. 1, Fig. 3 is a plan view of the same, and Fig. 4 is a hydraulic drive. elevator
FIG. 5 is a perspective view showing the passenger heel, and FIG. 6 is a perspective view of the passenger heel viewed from under the floor. 1... Car, 2... Lifting device, 6... Rope, 7 (7A, 7B)... Guide rail, 10 (IO
A~10D)...Guide device, 45...Guide roller, 54 Fig. 5

Claims (1)

[Claims] 1. A guide rail, a car that goes up and down along the guide rail, a lifting device that lifts the car at a position eccentric from its center of gravity, and a lifting device that is provided on the car and that engages with the guide rail. In the elevator, the guide device is provided with a movable guide roller that is always pressed against the guide rail with a predetermined pressure, and a guide device that prevents the car from falling over from the same side as the movable guide roller. A movable guide shoe that is always pressed with a predetermined pressure is arranged in parallel to the movable guide roller, so that the overturning load of the car is shared between the movable guide roller and the movable guide shoe. Elevator guide device.