JP6158381B1 - Elevator equipment - Google Patents

Abstract

The present invention provides an elevator apparatus that can be configured at low cost and has a simple structure, and that can effectively suppress swaying of a car. A pair of left and right guide rails are arranged vertically on both sides of a car. The guide mechanism provided in the car has a roller 32 that rolls in contact with the guide portion of the guide rail. The roller 32 supports the roller 32 so as to be displaceable in a direction perpendicular to the length direction of the guide rail, and adds a load. Press toward the guide rail with a pressure spring. The vibration damping drive unit 43 provided in the guide mechanism is configured to be movable along with the rack gear 44 provided integrally with the base portion 33 of the guide mechanism along the moving direction of the roller 32, and the rack gear 44. And a pinion gear 45 that horizontally moves by meshing with the motor. The pinion gear 45 is rotated by a motor 46 in a direction corresponding to a signal that detects the rolling of the car. [Selection] Figure 3

Description

  Embodiments described herein relate generally to an elevator apparatus having a guide mechanism that actively suppresses shaking applied to a passenger car.

  In the elevator apparatus, the car is guided along the guide rail by a guide mechanism provided in the car coming into contact with a guide rail standing on the side wall of the hoistway. However, this guide rail has a slight step or bend due to an error during installation, a deflection due to the load of the car, or a secular change. When the car is raised and lowered, the car is shaken by such a step or bend of the guide rail, and the passenger feels uncomfortable.

  In recent years, with the heightening of buildings, the journey of elevators has been extended, and the super-high speed of elevators has become an important factor. In such an ultra-high speed elevator, in addition to the above-described factors, the car is swayed by a counterweight or a wind pressure when passing between adjacent elevator cars.

  Conventionally, such vibrations and vibrations have been suppressed by interposing a spring material. However, with ultra-high speed elevators, there is a limit to the suppression of such a configuration, which affects ride comfort. It was.

  Therefore, an active vibration reduction method that applies a force to suppress shaking from the outside is attracting attention. In this method, an electromagnetic drive mechanism drives a roller that rolls in contact with the guide rail in a direction that suppresses shaking of the car.

JP 2001-122555 A

  A guide mechanism provided in a car usually has three rollers in contact with one guide rail from three directions so as to surround the guide rail. For this reason, when the active vibration reduction method is adopted, one guide mechanism is provided with the three drive mechanisms described above corresponding to the three rollers. Since at least four guide mechanisms are provided on the left, right, top and bottom of the car, the total number of rollers is 12 and is required.

  Since the drive mechanism is usually electromagnetic, it is expensive. Further, a complicated transmission mechanism is required to transmit the acting force to the corresponding roller. The use of such an expensive and complicated drive mechanism is not preferable because it increases the cost of the entire apparatus and complicates the structure.

  An object of the present invention is to provide an elevator apparatus that can have a simple configuration at a low cost and can effectively suppress the shaking of a car.

An elevator apparatus according to an embodiment of the present invention includes a pair of left and right guide rails that are vertically disposed on both sides of a car in a hoistway, and is provided in the car corresponding to the pair of left and right guide rails. And a roller that rolls in contact with the guide portion of the guide rail. The roller is supported so as to be displaceable in a direction perpendicular to the length direction of the guide rail, and is directed toward the guide rail by a pressure spring. A guide mechanism having a structure that presses, and a vibration suppression drive unit that is provided in the guide mechanism and moves the roller in a direction to suppress the roll when a signal that detects the roll of the car is input. wherein the vibration damping driving unit is disposed along the moving direction of the roller, and a rack gear which is movable together with the roller, mounted on the base portion of the guide mechanism, A pinion gear that meshes with the serial rack gear, the pinion gear, and having a motor for rotating in a direction corresponding to the signal obtained by detecting the YokoYura of the car.

  According to the said structure, it can be set as a low-cost and simple structure using an inexpensive vibration suppression drive mechanism, and can suppress the shaking of a passenger car effectively.

It is a perspective view of the elevator apparatus which concerns on one Embodiment of this invention. It is a front view which shows an example of the guide mechanism used for one Embodiment of this invention. It is a figure which shows the structure of the vibration suppression drive part used for one Embodiment of this invention. It is a figure which shows the structure of the vibration suppression drive part used for other embodiment of this invention. It is a schematic diagram explaining arrangement | positioning of the roller connected with the vibration suppression drive part of the guide mechanism in this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an elevator apparatus 10. As shown in FIG. 1, the elevator apparatus 10 includes a pair of left and right guide rails 12 that extend in the vertical direction along the hoistway 11, and a car 20 that moves in the vertical direction along the guide rails 12. The car 20 is composed of a rectangular parallelepiped car room 22 and a car frame 23 provided around the car room 22. The cab 22 is provided with a door 22a that can be opened and closed in front. The car frame 23 includes a pair of left and right standing frames 24 along both side surfaces of the car room 22, and an upper beam 25 and a lower beam 26 along the upper and lower surfaces of the car room 22, and supports the car room 22.

  A total of four guide mechanisms 31 for guiding the car 20 along the guide rail 12 are provided on the left and right and top and bottom of the car frame 23 constituting the car 20 corresponding to the pair of left and right guide rails.

  Here, a pair of guide rails 12 are arranged vertically on both sides of the car 20 in the hoistway 11, and the guide part 12 a extends along the width direction (surface direction of the door 22 a) of the car 20. Have

  The guide mechanism 31 has a total of three rollers 32 with respect to the guide portion 12 a of the guide rail 12. That is, it has two rollers 32 that roll in contact with the front and rear surfaces of the guide portion 12a, and one roller 32 that rolls in contact with the tip side of the guide portion 12a. Each of these rollers 32 is supported so as to be displaceable in the horizontal direction, that is, in a direction orthogonal to the length direction of the guide rail 12. Each of these rollers 32 receives a pressing force in a direction always in contact with the guide rail 12 by a pressure spring 37 described later. Hereinafter, the support and pressure configuration of the guide mechanism 31 with respect to the roller 32 will be described in detail with reference to FIG.

  In FIG. 2, the guide mechanism 31 has a flat plate-like base 33 and a support column 34 erected on the base 33. A rotation center shaft 35 of the roller 32 is rotatably fitted to the middle portion of the lever 36 in the length direction. The lever 36 has a plurality of linear bushes 38 fitted in the horizontal guide holes. These linear bushes 38 are fitted to a plurality of shafts 39 integrally attached to the support column 34 along the horizontal direction so as to advance and retreat along the axial direction. For this reason, the lever 36 and the roller 32 rotatably attached to the lever 36 can be translated in the horizontal direction.

  The aforementioned pressure spring 37 is provided between one end (the left side in the figure) of the stud 41 and the lever 36. The stud 41 penetrates the lever 36 so as to be able to advance and retreat, and the other end side (the right side in the drawing) is integrally attached to the column 34. For this reason, the lever 36 and the roller 32 rotatably attached to the lever 36 are configured to receive a pressing force to the right in the figure, and the roller 32 is always in contact with the guide rail 12.

  The guide mechanism 31 is provided with a vibration suppression drive unit 43. The vibration suppression drive unit 43 is provided on the front side of FIG. 2, and when a signal for detecting the roll of the car 20 is input, the roller 32 is actively moved in a direction to suppress the roll. Is. The configuration will be described below with reference to FIG.

  In FIG. 3, the vibration suppression drive unit 43 includes a rack gear 44, a pinion gear 45 that meshes with the rack gear 44, a motor 46 that reversibly rotates the pinion gear 45, and a presser gear 47.

  The rack gear 44 is integrally provided on the base 33 of the guide mechanism 31 along the moving direction (horizontal direction in the drawing) of the roller 32 via a support base.

  The pinion gear 45 that meshes with the rack gear 44 is attached to a rotation center shaft 35 that is common to the roller 32 shown in FIG. However, the pinion gear 45 is configured to be rotatable with respect to the roller 32. For example, the pinion gear 45 is attached so as to rotate integrally with the rotation center shaft 35, and the roller 32 is configured to be rotatably attached to the outer periphery of the rotation center shaft 35 via a bearing (not shown).

  The motor 46 is directly connected to the rotation center shaft 35 and rotates the pinion gear 45 in forward and reverse directions in response to a signal that detects the rolling of the car 20.

  The presser gear 47 is formed in a disk shape, and the upper rotation center thereof is rotatably attached to the support arm 51 rising from the base 33. A gear portion 47 a that meshes with the pinion gear 45 is formed on the circumferential edge of the lower surface of the presser gear 47. The gear portion 47 a meshes with the pinion gear 45 to allow rotation of the pinion gear 45 and press the pinion gear 45 so as to mesh with the rack gear 44.

  As described above, the motor 46 rotates forward and backward in accordance with the direction of swing when the signal that detects the roll of the car 20 is input, and the pinion gear that meshes with the rack gear 44 fixed on the base 33. 45 is moved in the horizontal direction. Therefore, the roller 32 having the rotation center shaft 35 common to the pinion gear 45 is moved in the same direction. That is, the vibration suppression drive unit 43 actively drives the roller 32 in a direction to suppress the rolling of the car 20.

  The rolling of the car 20 is detected by an accelerometer provided on the car 20 (not shown). In other words, the measurement value of the accelerometer is converted into an operation displacement of the roller 32 by a controller (not shown). This converted value is given as an operation signal to the vibration suppression drive unit 43, and the roller 32 is driven in the vibration suppression direction by the vibration suppression drive unit 43. In other words, the swing of the car 20 can be suppressed by actively operating the roller 32.

  Here, the drive source of the vibration suppression drive unit 43 is a rotary motor 46, which can be obtained at low cost. Further, the drive system has a simple configuration in which the rotation center shaft 35 of the roller 32 is horizontally moved by a combination of the pinion gear 45 and the rack gear 44 that are rotationally driven by the motor 46, and a complicated transmission mechanism is used. And can be configured simply. That is, the vibration damping drive unit 43 is less expensive and can be simply configured as compared with a type using a linear drive source.

  The above-described vibration suppression drive unit 43 moves the roller 32 having the rotation center shaft 35 common to the pinion gear 45 in the horizontal direction by meshing the rack gear 44 fixed on the base 33 and the pinion gear 45. However, it may be configured to reverse this relationship. Hereinafter, description will be made with reference to FIG.

  As shown in FIG. 4, a rack gear 54 in which the rotation center shaft 35 of the roller 32 is attached to an intermediate portion in the longitudinal direction is installed so as to be able to reciprocate along the moving direction (horizontal direction) of the roller 32. That is, the rack gear 54 is configured to be movable together with the roller 32.

  The top gear portion 54 a of the rack gear 54 meshes with the pinion gear 55. The pinion gear 55 is rotationally driven by a motor 56 and is rotatably supported on an upper portion of a triangular support plate 57 rising from the base 33. The support plate 57 also rotatably supports two pinion gears 58 and 59 that mesh with the lower surface gear portion 54b of the rack gear 54.

  When a signal that detects the roll of the car 20 is input, the motor 56 rotates forward and backward in accordance with the swing direction, and moves the rack gear 54 that meshes with the pinion gear 55 in the horizontal direction. Accordingly, the roller 32 having the rotation center shaft 35 attached to the rack gear 54 moves in the same direction. That is, the vibration suppression drive unit 43 drives the roller 32 in a direction that suppresses rolling of the car 20.

  The two pinion gears 58 and 59 are engaged with the lower surface gear portion 54b of the rack gear 54 to rotate as the rack gear 54 moves in the horizontal direction, and guide and support the movement of the rack gear 54 in the horizontal direction. .

  Even if the vibration suppression drive unit 43 is configured in this way, the rolling of the car 20 can be effectively suppressed. Further, the rotary motor 56 is available at a low cost, and the drive system has a simple configuration in which the roller 32 is horizontally moved by a combination of the pinion gear 55 and the rack gear 54 that are rotationally driven by the motor 56, and is complicated. It can be simply configured without using a simple transmission mechanism. That is, the vibration damping drive unit 43 is less expensive and can be simply configured as compared with a type using a linear drive source.

  Here, as described above, a total of four guide mechanisms 31 are provided on the left and right and top and bottom of the car 20, and the total number of rollers 32 is 12. However, the vibration damping drive unit 43 can be configured at a low cost as described above. Therefore, even if the vibration suppression drive unit 43 is individually provided for each of the rollers 32, it can be configured at a lower cost than that using a linear drive unit.

  Further, as described above, all the rollers 32 (12) of the four guide mechanisms 31 may be provided with the vibration damping drive units 43. However, even if the number of the vibration damping drive units 43 is reduced, the mounting positions thereof It was found that the rolling of the car can be sufficiently suppressed depending on the case.

  In this embodiment, therefore, a total of six rollers 32 provided on the left and right guide mechanisms 31 disposed on the car 20 corresponding to the pair of left and right guide rails 12 are as shown in FIG. In addition, it is proposed that the vibration suppression drive unit 43 be provided on the three black-coated rollers 32.

  In FIG. 5A, either one of the left and right (the right side in the figure) guide mechanism 31 includes two rollers 32 that roll in contact with the front and rear surfaces of the guide portion 12a of the guide rail 12, respectively. A vibration damping drive unit 43 is provided on any one of the rollers. Further, the vibration suppression drive unit 43 is also provided on one roller 32 that rolls in contact with the distal end side of the guide portion 12 a of the guide rail 12.

  On the other hand, the other (left side in the figure) guide mechanism 31 has only one roller 32 out of the two rollers 32 that roll in contact with the front and rear surfaces of the guide portion 12a of the guide rail 12, respectively. A vibration suppression drive unit 43 is provided.

  The above-described configuration is an explanation of the left and right guide mechanisms 31, 31 arranged above and below the car 20, for example, the upper one, but the left and right guide mechanisms 31, 31 arranged at the lower part are also described. The configuration is the same. Therefore, it is only necessary to provide a total of six vibration damping drive units 43, three for each of the top and bottom rollers 32 of a total of four guide mechanisms 31 on the left, right, top and bottom.

  In the case of such a configuration, with respect to the swinging of the car 20 in the front-rear direction, the guide mechanisms 31, 31 arranged on the left and right provide vibration damping provided on the roller 32 that contacts the front surface of the guide portion 12 a of the guide rail 12. The roller 32 is actively driven in the vibration suppression direction by the operation of the driving unit 43. The roller 32 in contact with the rear surface of the guide portion 12a is not provided with the vibration damping drive unit 43, but the roller 32b in contact with the rear surface is installed on the side of the car 20 via the pressure spring 37. The buffering action of the pressure spring 37 follows the vibration control direction. By these actions, the shaking of the car 20 in the front-rear direction is actively suppressed.

  In addition, when providing the vibration suppression drive part 43 also on the roller 32 side in contact with the rear surface of the guide part 12a, it is necessary to perform a vibration suppression operation in complete synchronization with the vibration suppression drive part 43 on the roller 32 side on the front surface. The control becomes complicated. However, when the vibration damping drive unit 43 is not provided on the side of the roller 32 in contact with the rear surface as described above, the vibration suppression drive unit 43 on the roller 32 side on the front surface does not need to be completely synchronized as described above. , Control can be simplified.

  A roller 32 in contact with the front end side of the guide portion 12a of one guide mechanism 31 (right side in the drawing) of the guide mechanisms 31 arranged on the left and right sides is provided correspondingly to the left-right swing of the car 20. It is driven in the vibration damping direction by the operation of the vibration damping drive unit 43. The roller 32 in contact with the distal end side of the guide portion 12a of the other guide mechanism 31 (left side in the drawing) is not provided with the vibration damping drive portion 43, but this roller 32 is connected to the car 20 side via the pressure spring 37. Accordingly, the pressure spring 37 performs a follow-up operation in the vibration damping direction by the buffering action. By these actions, the left-right swing of the car 20 is actively suppressed.

  As described above, the guide mechanisms 31 arranged on the left and right sides of the car 20 with respect to the shaking of the car 20 in the front / rear and left / right directions are provided with three vibration damping drive units 43 for a total of six rollers 32. An effective damping action is performed only by providing. Since the guide mechanisms 31 are also arranged at the top and bottom, when the guide mechanisms 31 arranged at four places on the left, right, top and bottom are viewed, six vibration damping drive units 43 are provided for a total of 12 rollers 32. Only by providing it, an effective damping action is performed, and the damping drive unit 43 can be greatly reduced. Therefore, the cost of the elevator apparatus 10 can be significantly reduced, and the structure can be simplified and reduced in weight.

  The number of the vibration damping drive units 43 is not limited to that shown in FIG. 5A, and as shown in FIG. 5B, the two black rollers 32 of the left and right guide mechanisms 31 are painted. Each may be provided with a vibration damping drive unit 43.

  Alternatively, as shown in FIG. 5C, one of the guide mechanisms 31 arranged on the left and right (the left side in the figure) is provided with a vibration suppression drive unit 43 on each of the two black-painted rollers 32, and the other (illustration in the figure). The right side guide mechanism 31 may have a structure in which the vibration suppressing drive unit 43 is provided on each of the three rollers 32.

  In these examples, there is a difference in the reduction number of the vibration damping drive unit 43, but the four guide mechanisms 31 on the left, right, top, and bottom have an elevator as compared with the case where the vibration suppression drive unit 43 is provided on all three rollers 32, respectively. The cost of the apparatus 10 can be suppressed, and the structure can be simplified and reduced in weight.

  Although several embodiments of the present invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Elevator apparatus 11 ... Hoistway 12 ... Guide rail 12a ... Guide part 20 ... Car 22 ... Car room 23 ... Car frame 31 ... Guide mechanism 32 ... Roller 33 ... Base 37 ... Pressure spring 43 ... Damping drive part 44 ... Rack gear 45 ... Pinion gear 46 ... Motor 54 ... Rack gear 55 ... Pinion gear 56 ... Motor

Claims (4)

A pair of left and right guide rails arranged vertically on both sides of the car in the hoistway;
Corresponding to the pair of left and right guide rails, the car is provided with a roller that rolls in contact with the guide portion of the guide rail, and the roller is arranged in a direction perpendicular to the length direction of the guide rail. A guide mechanism having a structure that supports the displacement and presses against the guide rail by a pressure spring;
Provided with this guide mechanism, provided with a vibration control drive unit that moves the roller in a direction to suppress the roll when a signal that detects the roll of the car is input,
The vibration suppression drive unit
A rack gear arranged along a moving direction of the roller and configured to be movable with the roller;
A pinion gear attached to the base portion of the guide mechanism and meshing with the rack gear;
A motor that rotates the pinion gear in a direction corresponding to a signal that detects the rolling of the car;
Elevator device having The guide mechanism has two rollers that roll in contact with the front and rear surfaces of the guide portion of the guide rail, and one roller that rolls in contact with the front end side of the guide portion,
The guide mechanism corresponding to one of the pair of left and right guide rails includes any one of two rollers that roll in contact with the front and rear surfaces of the guide portion, and the tip of the guide rail. The vibration suppression drive unit is provided corresponding to one roller rolling in contact with the side, and the guide mechanism corresponding to one of the pair of left and right guide rails is in contact with the front and rear surfaces of the guide unit, respectively. The elevator apparatus according to claim 1, wherein the vibration damping drive unit is provided only on one of the two rollers that roll. The guide mechanism has two rollers that roll in contact with the front and rear surfaces of the guide portion of the guide rail, and one roller that rolls in contact with the front end side of the guide portion,
The guide mechanism corresponding to the pair of left and right guide rails is in contact with any one of the two rollers that roll in contact with the front and rear surfaces of the guide portion, and the tip side of the guide rail. The elevator apparatus according to claim 1, wherein the vibration suppression drive unit is provided corresponding to one roller that rolls. The guide mechanism has two rollers that roll in contact with the front and rear surfaces of the guide portion of the guide rail, and one roller that rolls in contact with the front end side of the guide portion,
The guide mechanism corresponding to any one of the pair of left and right guide rails includes any one of two rollers that roll in contact with the front and rear surfaces of the guide portion, and the guide portion The vibration damping drive part is provided corresponding to one roller rolling in contact with the tip side, and the guide mechanism corresponding to the other of the pair of left and right guide rails is provided on the front and rear surfaces of the guide part, respectively. 2. The elevator according to claim 1, wherein the vibration suppression drive unit is provided in correspondence with two rollers that roll in contact with each other and one roller that rolls in contact with the tip side of the guide rail. apparatus.

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