JP2009120390A - Elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a rubber of a roller is permanent-settled in stopping of a car although vibration is isolated even if the roller made of a rubber with small hardness is used for a roller guide in order to suppress vibration of the car from being easily generated under the influence of bending of a rail and a step of a joint of the rail as an elevator becomes high speed. <P>SOLUTION: The roller guide is provided with the low speed traveling roller using a rubber with large hardness, a high speed traveling roller using the rubber with small hardness, and a biasing mechanism for automatically switching the roller abutting on the rail by using lift by an air stream in traveling of the car. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevator apparatus including a roller guide type car guide apparatus.

In a high-speed elevator, the car generally moves up and down while being guided in a horizontal direction by a roller guide type car guide device provided with a roller that contacts and rolls against the guide rail. In this case, the higher the speed, the greater the vibration of the roller due to the influence of the guide rail distortion, minute steps and surface roughness, and the riding comfort deteriorates. In order to alleviate this, it is effective to softly contact the roller and the guide rail during high-speed traveling. However, if the material of the rolling part of the roller is soft, the rolling load of the roller will be distorted due to the eccentric load acting on the car when the elevator stops, causing distortion during rolling (running) Cause a deterioration in ride comfort. As one means for solving this, the invention of Patent Document 1 has been proposed.
Patent Document 1 discloses an elevator including a roller guide type guide device that includes a roller, a spring that presses the roller against the guide rail, and an actuator that controls the pressing force against the guide rail according to the traveling speed of a car. An apparatus is disclosed. This reduces the spring constant and damping of the guide device using the actuator when traveling at high speeds, and increases the spring constant and damping when traveling at low speeds and when an unbalanced load occurs, improving the riding comfort of the car. It is said.

JP 2002-187679 A

  However, the elevator described in Patent Document 1 requires an actuator, a speed detection device, a drive device for the actuator, and a control device for controlling the drive device for the actuator by the output of the speed detection device. And has a problem that it depends on an electrical signal.

  The present invention has been made to solve such problems, and is a roller having a rolling mechanism made of a soft material and a rolling material made of a hard material according to the speed of an elevator with a simple mechanism. It is an object of the present invention to provide an elevator apparatus equipped with a roller guide type car guide device that automatically switches the vehicle.

  The elevator apparatus according to the present invention includes a first roller having a rolling part made of a material having high hardness, a second roller having a rolling part made of a material having low hardness, and lift force caused by an air flow during elevator traveling. A roller guide type car guide device provided with an urging mechanism that uses either the first roller or the second roller to abut against a guide rail of an elevator by using the first roller and the second roller.

  According to the present invention, in the elevator apparatus, it is possible to improve the riding comfort of the elevator during high-speed traveling, and to obtain an elevator apparatus equipped with a roller guide type guide device that does not generate distortion in the rolling part of the roller. .

Embodiments of the present invention will be described below with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 schematically shows the configuration of an elevator apparatus according to Embodiment 1 of the present invention.
In FIG. 1, an elevator car 1 is suspended by a main rope 2 driven by a hoisting machine (not shown), guided by a roller guide type car guide device 3, and along the guide rail 4 inside the hoistway 5. Move up and down.

Hereinafter, the roller guide type car guide device 3 will be described with reference to FIGS. 2 is a detailed view of the roller guide type car guide device 3, FIG. 3 is a view of arrow A in FIG. 2, FIG. 4 is a view of arrow B in FIG. 2, and FIG. 5 is a view of arrow C in FIG. FIG. 6 and FIG. 6 show the view of arrow D in FIG.
The roller guide type guide device 3 includes a base 31, a first link mechanism 32, a second link mechanism 33, a first roller 34, a second roller 35, an urging mechanism 36, a connecting link mechanism 37, and a driven link. A mechanism 38 and a fixed body 39 are provided, and are fixed to the elevator car 1 by a base 31. A first link mechanism 32, a second link mechanism 33, an urging mechanism 36, a driven link 38 mechanism, and a fixed column 39 are fixed to the base 31.
The first roller 34 is composed of a rolling portion 34a made of a rubber material having a high hardness and a shaft 34b, and the second roller 35 is composed of a rolling portion 35a made of a rubber material having a low hardness and a shaft 35b. Yes.
The first link mechanism 32 includes a fixed member 32a, a movable member 32b, and a shaft 32c that supports the fixed member 32a and the movable member 32b. One end of the first link mechanism 32 is fixed to the base 31 by a fixed member 32a, the shaft 34b of the first roller 34 is pivoted at an intermediate portion of the movable member 32b, and the connecting link mechanism at the end of the movable member 32b. 37 is coupled to a shaft 37d. The shaft 34b of the first roller 34 is fitted to the movable member 38b of the driven link 38, and the movable member 38b is pivotally supported by a fixed member 38a fixed to the base 31 by the shaft 38c.
The second link mechanism 33 includes a fixed member 33a, a movable member 33b, and a shaft 33c that supports the fixed member 33a and the movable member 33b. One end of the second link mechanism 33 is fixed to the base 31 by a fixing member 33a, and the shaft 35b of the second roller 35 is pivoted at an intermediate portion of the movable member 33b, and at the end of the movable member 33b. It is coupled to the shaft 37e of the connecting link mechanism 37.
The connection link mechanism 37 is coupled to a fixed member 37 a having one end fixed to the base 31, a movable member 37 b, a shaft 37 c that pivots the fixed member 37 a and the movable member 37 b, and an operating member 32 b of the first link mechanism 32. And a shaft 37e coupled to the movable member 33b of the second link mechanism 33.
The driven link mechanism 38 includes a fixed member 38a having one end fixed to the base 31, a movable member 38b, and a shaft 38c that pivotally supports the fixed member 38a and the movable member 38b, and an intermediate portion of the movable member 38b. Thus, the shaft 34b of the first roller 34 is supported, and is coupled to the fixed body 39 via the spring 40 of the movable member 38b.

  The urging mechanism 36 includes a plate-like wing body 36a having a cross-sectional shape constituted by a substantially arc-shaped curve and a straight line, a support body 36b fixed to a base 31, and the wing body 36a. A guide pin 36c fitted in a guide groove provided in the body 36b, and a spring 36d having one end fixed to the wing body 36a and the other end fixed to the movable member 33b of the first roller 33. . Here, the wing body 36a is arranged to generate lift in the horizontal direction and in the direction from the center of the car toward the guide rail by the airflow in the traveling direction of the elevator.

Next, the operation of the elevator apparatus according to the first embodiment will be described.
When the elevator is stopped, no airflow is generated during traveling, so no lift is generated on the wing body 36a of the urging mechanism 36, and the first roller 34 is in contact with the guide rail 4. Yes.

  As the elevator accelerates from the stopped state and travels, an air flow is generated, lift acts on the wing body 36a, and the wing body 36a moves in a direction toward the guide rail while compressing the spring 36d. As a result, the second roller mechanism 33 is moved in the direction toward the guide rail by the second lever mechanism 33 via the spring 36d, while the first lever mechanism 32 is moved via the connection link mechanism 37, and the first lever mechanism 33 is moved. The roller 34 moves in a direction away from the guide rail. When the first roller 34 moves in the direction toward the guide rail, the movable member 38b of the driven link mechanism 38 moves and the spring 40 is compressed. As the speed increases, the lift increases, the amount of movement of the wing body 36a increases, and only the second roller 35 comes into contact with the guide rail.

  As the elevator gradually decelerates from high speed travel, the lift decreases, the spring 36d is released from compression, and the second lever mechanism 33 moves the second roller 35 away from the guide rail, while the connecting link The first lever mechanism 32 moves via the mechanism 37, and the first roller 34 moves in the direction toward the guide rail. When the first roller 34 moves in the direction toward the guide rail, the movable member 38b of the driven link mechanism 38 moves, and the compressed spring 40 is released. As the speed decreases, the moving amount of the wing body 36a decreases, and only the first roller 34 comes into contact with the guide rail.

As described above, when the elevator is stopped, the roller having high hardness is in contact with the guide rail, so that no settling occurs, and the roller having low hardness as the elevator starts to run from low speed to high speed. Since it is in contact with the guide rail, it is possible to obtain a good ride comfort even in a high-speed traveling state.
Further, since the lift acting on the wing-like body is used as the urging mechanism, the above-described effect can be surely obtained without depending on complicated electrical control.

  In the above embodiment, lift acting on the airfoil is used as the urging mechanism. However, even if an electric or hydraulic actuator that operates according to the speed is used, the roller does not become sticky and travels at high speed. Even so, it is obvious that a good ride can be obtained.

Schematic which shows the elevator apparatus which concerns on Embodiment 1 of this invention. FIG. 2 is a detailed view of a roller guide type car guide device provided in the elevator apparatus according to the first embodiment. The figure of the arrow A of FIG. The figure of the arrow B of FIG. The figure of the arrow C of FIG. The figure of the arrow D of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car, 2 main rope, 3 guide apparatus, 4 guide rail 31 base, 32 1st link mechanism, 33 2nd link mechanism, 34 1st roller, 35 2nd roller, 36 biasing mechanism, 37 Linking link mechanism, 38 Driven link mechanism, 39 Fixed body, 40 Spring

Claims (3)

  A first roller having a rolling part made of a material having high hardness, a second roller having a rolling part made of a material having low hardness, and the first roller and the second roller according to the speed of the elevator And a roller guide type car guide device provided with an urging mechanism for abutting either one of the guide rail and the guide rail of the elevator.   The elevator apparatus according to claim 1, further comprising the urging mechanism provided with a wing body that generates lift in a horizontal direction by an airflow acting when the elevator travels.   The elevator apparatus according to claim 2, wherein the wing body has an arcuate cross-sectional shape with a chord portion in a vertical direction.

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