JP2012012226A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive and lightweight elevator device that requires no large space when reducing vibration of an elevator car.SOLUTION: The elevator device includes: a hoistway including an entrance and guide rails; a passenger car which is configured to be guided by the guide rails 5 disposed within the hoistway, and go up and down via a rope by a hoist; and a vibration prevention unit connected to an elevator door opening and closing device of the elevator car, and configured to move together with the opening and closing of the elevator car door 8 and prevent vibration of the elevator car by biasing a prevention member 9e to the hoistway.

Description

  The present invention relates to a vibration damping device that damps vibrations of an elevator car, and more particularly to an elevator device having a vibration damping device provided in a car.

  FIG. 7 is a cross-sectional view of a hoistway showing a conventional elevator apparatus disclosed in, for example, Japanese Patent Laid-Open No. 3-18577. FIG. 8 is an external view of a car of a conventional elevator apparatus. In the drawing, a car 1 and a counterweight 2 are guided by guide rails 5 erected on a hoistway via guide shoes 4 and are moved up and down in a hoistway (not shown). A car 1 is connected to one end of the rope 3, and a counterweight 2 is connected to the other end of the rope 3. The rope 3 is wound around a driving sheave 6 provided in a machine room (not shown) provided in the upper part of the hoistway.

  In operation of the elevator apparatus, the driving sheave 6 rotates and the car 1 moves up and down accordingly. Regarding the operation of such an elevator apparatus, a traction system in which driving force is transmitted by friction between the driving sheave 6 and the rope 3 as shown in FIG. A winding drum type that is simply suspended by a rope 3 and wound around a drum is widely adopted. The present invention is effective in both configurations.

  In FIG. 8, the passenger can enter and exit the car as the car door 8 is opened and closed by the car door opening and closing device 7 provided at the upper part of the car 1.

  In the elevator apparatus having such a configuration, if the length of the rope 3 from the car 1 to the driving sheave 6 is long in either the traction method or the winding drum type, the displacement of the rope 3 is increased. The magnitude of vibration due to the load fluctuation of the car 1 is determined. When long ropes are used, such as an elevator installed in a super high-rise building, or when a small number of ropes with a small diameter are used to save space and space, Vibration increases.

  Furthermore, in the future, elevators using synthetic fiber ropes, high-strength wire ropes, etc. as ropes 3 will tend to lower the relative elastic modulus compared to current levels, so the car 1 is more likely to shake. Is expected to be.

  In view of this, Japanese Patent Application Laid-Open No. 3-185777, which is a prior art example, is a vibration damping device provided in the car 1, which has a mechanism for pressing the guide rail 5 from the car 1. Thus, it has been proposed to attenuate the displacement and vibration of the car 1.

Japanese Patent Laid-Open No. 3-18577

  However, in order to actually realize the above-described conventional example, there are cases where the installation cannot be performed due to insufficient installation space or the weight of the car 1 increases excessively.

  In addition, as a method for attenuating the displacement and vibration of the car 1, other countermeasures include a countermeasure for increasing the number of ropes 3 and increasing the diameter, but this is a problem because it involves a significant cost increase. .

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator apparatus that can be reduced in weight and cost without requiring a large space and can be reduced in cost. .

  The elevator apparatus according to the present invention includes a hoistway including a landing and a guide rail, a car arranged in the hoistway and guided by the guide rail and lifted and lowered via a rope by a hoist, and a car door opening / closing of the car And a vibration control device that is connected to the device and operates in accordance with the opening / closing operation of the car door, and urges the vibration control member toward the hoistway to suppress shaking of the car.

  Further, the vibration damping device has a link mechanism that suppresses shaking of the car by pressing a rubbing member provided between the car door and the guide rail against the guide rail.

  The vibration control device is provided between the car door and the landing door. When the car door is opened and closed, the car door and the landing door are engaged, and the driving force of the car door opening and closing device is applied to the landing door. It has an engaging member as a damping member which is transmitted to and suppresses the swing of the car.

  The engaging member includes a car door engaging member provided on the car door and a landing door engaging member provided on the landing door, and a rubbing member is disposed between the engaging members. Yes.

  In addition, the car door engaging member has a U-shaped cross section that extends along the direction of raising and lowering the car, and the landing door engaging member has a U-shaped cross section that engages facing the car door engaging member. The members are provided on the opening pressing surface and the closing pressing surface of the car door engaging member or the landing door engaging member having a U-shaped cross section.

  The rubbing member is provided on the car door engaging member.

  In addition, the vibration damping device is provided on either the car or the landing and is operated in accordance with the opening / closing operation of the car door, and the gripped object is provided on the other of the car or the landing and is held by the holding device. Device.

  The gripping device is provided with a rubbing member that improves the friction between the gripping device and the gripped device.

The car door and the landing door have a plurality of rollers that sandwich the suspension rail in the vertical direction.
A polyurethane resin is used for the rubbing member.

  Further, a high molecular polyethylene resin is used for the rubbing member.

  According to the present invention, when the vibration of the elevator car is damped, it is possible to reduce the weight and cost without requiring a large space.

It is the external view which expanded a part of elevator apparatus of Embodiment 1 of this invention. It is a front view of the car door opening / closing apparatus of Embodiment 2 of this invention. It is a front view of the landing door apparatus of Embodiment 2 of this invention. It is the enlarged view which looked at the engaging member which engages a car door and a landing door from the upper part of a hoistway. It is a front view of the car door opening / closing apparatus of Embodiment 3 of this invention. It is a front view of the landing door apparatus of Embodiment 3 of this invention. It is hoistway sectional drawing which shows the conventional elevator apparatus. It is an external view of the passenger car of the conventional elevator apparatus.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

Embodiment 1 FIG.
1 is an enlarged external view of a part of an elevator apparatus according to Embodiment 1 of the present invention. In FIG. 1, a cam 8 a is attached to the outer end portion of the upper portion of the car door 8. When the door 8 is opened, the cam 8a pushes up one end of the lever 9a of the link mechanism 9. The lever 9a is rotatably supported by the bracket 9c. When one end of the lever 9a is pushed up, the damping member 9e is pressed against the guide rail 5. A rubbing member (not shown) that increases friction is fixed to the surface of the damping member 9e on the guide rail 5 side.

  When the door 8 is closed, the lever 9a is pulled down by the pulling spring 9b and is held in the standby position by the stopper 9d. In this standby position, there is a gap between the guide rail 5 and the vibration damping member 9e, and the vibration damping action does not work.

  For example, a conventional vibration damping device as shown in the above-mentioned conventional example Japanese Patent Laid-Open No. 3-18577 is damped using a special pressing device on a car. However, with this method, the desired vibration damping action can be obtained, but the installation space is large and the weight is increased, which greatly increases the cost.

  On the other hand, the vibration damping device of the present embodiment is connected to the car door opening / closing device of the car, operates along with the opening / closing operation of the car door 8, and guides the hoistway of the vibration damping member 9e. Energize to suppress the car from shaking.

  The vibration damping device is a link mechanism 9 that suppresses shaking of the car by pressing a rubbing member (not shown) provided between the car door 8 and the guide rail 5 and provided on the vibration damping member 9e against the guide rail 5. Have

Analyzing the biasing force of the damping member 9e on the guide rail 5, it is calculated that a friction force of about 10 kg or more is necessary for a general nine-seater elevator with a lifting stroke of 80 m.
For this reason, the vibration damping device of the present embodiment is connected to the car door opening / closing device of the car originally provided in the elevator apparatus, operates in accordance with the opening / closing operation of the car door 8, and the vibration damping member 9e. To the hoistway to suppress the car from shaking. Therefore, it is possible to provide an elevator apparatus that can be light and inexpensive without requiring a large space and can be reduced in cost.

Embodiment 2. FIG.
FIG. 2 is a front view of a car door opening and closing device for explaining an elevator apparatus according to Embodiment 2 of the present invention. FIG. 3 is a front view of the landing door device. FIG. 4 is an enlarged view of the engaging member that engages the car door and the landing door as seen from above the hoistway.

  In FIG. 2, the car door opening / closing device 7 is attached to the upper front part of the car. The car door 8 suspended from the suspension 7a is opened and closed by an electric motor 7c connected via an interlocking rope 7b.

  A car door engaging member 8b as a vibration damping member is provided at a predetermined position of the car door 8 at a position corresponding to the landing door device 10. The car door engaging member 8b has a U-shaped cross section extending along the raising / lowering direction of the car.

  In FIG. 3, the landing door apparatus 10 is attached to the front upper part of the landing. The landing door 10b sandwiched between the roller 10c and the roller 10d and suspended from the suspension rail 10e is supported so as to be movable right and left along the suspension rail 10e.

  At a predetermined position of the landing door 10b, a landing door engaging member 10a as a vibration damping member is provided at a position corresponding to the car door opening and closing device 7. The landing door engaging member 10a has a U-shaped cross section extending along the raising / lowering direction of the car.

  When the car is located at the landing, the car door engaging member 8b and the landing door engaging member 10a face each other and engage as shown in FIG. When the car door 8 is opened and closed by the car door opening and closing device 7, the landing door 10b is also opened and closed in conjunction with this operation.

  In the present embodiment, the driving force of the electric motor 7c is increased to an appropriate strength. Therefore, when both doors 8 and 10 are opened and closed, the driving force of the car door opening and closing device 7, that is, the driving force of the electric motor 7c is urged to the landing door 10b as a hoistway through the engaging members 8b and 10a. . Thereby, the shaking of the car is suppressed.

  In the present embodiment, a rubbing member 8c is provided between the car door engaging member 8b and the landing door engaging member 10a in order to increase the frictional force. The rubbing member 8c is provided on the opening pressing surface 8b1 and the closing pressing surface 8b2 having a U-shaped cross section of the car door engaging member 8b. As a result, the frictional force between the engaging members 8b and 10a increases, and the vibration of the car is further damped, and the vibration of the car is also damped while the door is being opened and closed or when the door is fully opened. Can do.

  The rubbing member 8c may be provided on either the car door engaging member 8b or the landing door engaging member 10a. However, since the car door engaging member 8b is shorter than the landing door engaging member 10a, the car door engaging member 8b can be provided with less rubbing member 8c and can be inexpensive.

  In addition, the elevator vibration control device of the present embodiment can expect only vibration attenuation due to frictional force corresponding to the door weight of the car door and the landing door during the opening of the door, but when the door is fully open Can be freely operated by adjusting the driving force of the electric motor 7c.

  Furthermore, in the present embodiment, the car door and the landing door have a plurality of rollers that sandwich the suspension rail in the vertical direction. When there is a gap in the upper or lower part of the door, if the car vibrates with the car door engaging member 8b and the landing door engaging member 10a engaged, the door moves within the gap, causing rattling, vibration, and noise. Occurs, and the life of the device is impaired. Therefore, rollers are arranged at the upper and lower portions of the rail for guiding the opening and closing of the door, and the gap is eliminated by sandwiching the rail. In the present embodiment, the upper door rail is sandwiched, but it goes without saying that the same effect can be obtained when a rail is provided in the lower portion or when the movement of the door in the vertical direction is suppressed by the sill.

Embodiment 3 FIG.
FIG. 5 is a front view of a car door opening / closing device for explaining an elevator apparatus according to Embodiment 3 of the present invention. FIG. 6 is a front view of the landing door device. In FIG. 5, the car door 8 is provided with a fixed side grip 8d and a movable side grip 8e as gripping devices. The interval between the fixed side grip 8d and the movable side grip 8e varies depending on the state in which the car door 8 is opened. On the opposing surfaces of the fixed side grip 8d and the movable side grip 8e, a rubbing member (not shown) is provided. When the car is not in a predetermined position, the fixed side grip 8d and the movable side grip 8e are wide open so that the landing door engaging member 10f as the gripped device can pass smoothly. As shown in FIG. 6, the landing door engaging member 10 f is a roller provided side by side along the raising / lowering direction of the car.

  On the other hand, when the car stops at a predetermined position and the car door 8 opens, the gap between the grips 8d and 8e is wide at the start of the door opening. Then, as the car door 8 opens, the cam 8f pushes the movable side grip 8e, approaches the fixed side grip 8d, and sandwiches and holds the landing door engaging member 10f. The shape of the cam 8f is determined so that the holding force of the movable side grip 8e is kept constant even when the car door 8 is completely opened. By changing the shape of the cam 8f, it is possible to freely set a change in the holding force depending on the magnitude of the holding force and the door position.

  The cam 8f moves along with the opening / closing operation of the car door 8 due to the structure of the link 8h connecting the pin 7d provided on the car door opening / closing device 7 and the pin 8g provided on the car door 8, and is appropriately gripped. It is designed to generate power.

  When the movable side grip 8e grips the landing door engaging member 10f, if the car tries to displace, the grip part tends to slip. At this time, the car door 8 and the landing door 10b of the car In order not to move up and down, the car door 8 is configured to sandwich the suspension rail 81 with rollers 8j and 8k, and the landing door 10b is configured to sandwich the suspension rail 10e with rollers 10c and 10d. Thereby, the damping action of vibration is exhibited effectively.

  The gripping device of the present embodiment is provided on the car side in order to simplify the structure, but may be provided on the landing side or the hoistway side. Moreover, although the landing door engaging member 10f is a roller, it goes without saying that the same effect can be obtained by using a flat plate as well as a roller.

  In the first to third embodiments, a polyurethane resin is used for the rubbing member. Polyurethane resin has high friction characteristics and excellent wear resistance, so even if the opening force of the door opening and closing device is small, it can be expected to have a high vibration damping effect. It becomes possible. In particular, since the material can freely select the hardness, the action of buffering the collision sound at the engaging portion can be freely operated, and both a high vibration damping effect and quietness can be achieved.

  Furthermore, high molecular polyethylene resin may be used for the rubbing member. The high-molecular polyethylene resin does not have a large difference between static frictional characteristics and dynamic frictional characteristics, can exhibit stable vibration damping characteristics, and is excellent in wear resistance, so that it can be used for a long period of time. Although the coefficient of friction is not so large, it has a feature that it is excellent in quietness when sliding, and is a material suitable for a vibration damping device provided in the vicinity of a landing where passengers get on and off.

  The industrial applicability regarding the present invention is as follows. The elevator apparatus according to the present invention includes a hoistway including a landing and a guide rail, a car arranged in the hoistway and guided by the guide rail and lifted and lowered via a rope by a hoist, and a car door opening / closing of the car And a vibration control device that is connected to the device and operates in accordance with the opening / closing operation of the car door, and urges the vibration control member toward the hoistway to suppress shaking of the car. Therefore, it is possible to suppress vibrations due to passenger car load fluctuations due to passengers getting on and off, etc., and use a car door opening and closing device, so there is no need for a drive source and a large space for installing a vibration damping device Thus, an elevator apparatus that can be made inexpensive and can be reduced in cost because the weight of the car does not become extremely large and the structure is simple.

  Further, the vibration damping device has a link mechanism that suppresses shaking of the car by pressing a rubbing member provided between the car door and the guide rail against the guide rail. Therefore, it can be operated with a simple structure and surely, and the weight of the car is not increased too much because the device is light.

  The vibration control device is provided between the car door and the landing door. When the car door is opened and closed, the car door and the landing door are engaged, and the driving force of the car door opening and closing device is applied to the landing door. It has an engaging member as a damping member which is transmitted to and suppresses the swing of the car. Therefore, the structure can be simplified, and the weight of the car does not increase too much.

  The engaging member includes a car door engaging member provided on the car door and a landing door engaging member provided on the landing door, and a rubbing member is disposed between the engaging members. Yes. Therefore, it is possible to further suppress the shaking of the car and to attenuate the vibration of the car even while the door is open.

  In addition, the car door engaging member has a U-shaped cross section that extends along the direction of raising and lowering the car, and the landing door engaging member has a U-shaped cross section that engages facing the car door engaging member. The members are provided on the opening pressing surface and the closing pressing surface of the car door engaging member or the landing door engaging member having a U-shaped cross section. Therefore, the vibration of the car can be attenuated not only when the door is opened but also when the door is closed.

  The rubbing member is provided on the car door engaging member. Therefore, the number of rubbing members can be reduced and the cost can be reduced.

  In addition, the vibration damping device is provided on either the car or the landing and is operated in accordance with the opening / closing operation of the car door, and the gripped object is provided on the other of the car or the landing and is held by the holding device. Device. Therefore, it is possible to reliably suppress the vibration due to the load change of the car.

  The gripping device is provided with a rubbing member that improves the friction between the gripping device and the gripped device. Therefore, the vibration of the car can be more reliably suppressed.

  The car door and the landing door have a plurality of rollers that sandwich the suspension rail in the vertical direction. For this reason, the rattle, vibration, and noise of the door are suppressed, and the life of the equipment is extended.

  A polyurethane resin is used for the rubbing member. Polyurethane resin has high friction characteristics and excellent wear resistance, so even if the opening force of the door opening and closing device is small, it can be expected to have a high vibration damping effect. It becomes possible. In particular, since the material can freely select the hardness, the action of buffering the collision sound at the engaging portion can be freely operated, and both a high vibration damping effect and quietness can be achieved.

  Further, a high molecular polyethylene resin is used for the rubbing member. The high-molecular polyethylene resin does not have a large difference between static frictional characteristics and dynamic frictional characteristics, can exhibit stable vibration damping characteristics, and is excellent in wear resistance, so that it can be used for a long period of time. Moreover, it has the feature that it is excellent in quietness at the time of sliding, and the effect is great when it is provided in the vicinity of a landing where passengers get on and off.

  5 guide rail, 8 car door, 8b car door engaging member, 8c rubbing member, 8d fixed side grip, 8e movable side grip, 9 link mechanism 9, 9e vibration damping member, 10a landing door engaging member, 10b landing door 10f A landing door engaging member.

Claims (11)

A hoistway including a landing and a guide rail;
A car that is arranged in the hoistway and guided by the guide rail and lifted by a hoisting machine via a rope,
A vibration control device that is connected to the car door opening and closing device of the car and operates in accordance with the opening and closing operation of the car door, and biases the vibration damping member toward the hoistway to suppress the shaking of the car. An elevator apparatus characterized by that. The vibration damping device includes a link mechanism that is provided between the car door and the guide rail and that presses a rubbing member provided on the vibration damping member against the guide rail to suppress shaking of the car. The elevator apparatus according to claim 1. The vibration damping device is provided between the car door and the landing door. When the car door of the car is opened and closed, the car door and the landing door are engaged with each other, and the driving force of the car door opening and closing device is The elevator apparatus according to claim 1, further comprising: an engaging member serving as the vibration damping member that suppresses shaking of the car by transmitting to the landing door. The engaging member includes a car door engaging member provided on the car door and a landing door engaging member provided on the landing door, and a rubbing member is disposed between the engaging members. The elevator apparatus according to claim 3, wherein the elevator apparatus is provided. The car door engaging member has a U-shaped cross section extending along the raising / lowering direction of the car, and the landing door engaging member has a U-shaped cross section that engages facing the car door engaging member, 5. The elevator according to claim 4, wherein the rubbing member is provided on an opening pressing surface and a closing pressing surface having a U-shaped cross section of the car door engaging member or the landing door engaging member. apparatus. The elevator apparatus according to claim 5, wherein the rubbing member is provided on the car door engaging member. A vibration damping device is provided on either the car or the landing, and a gripping device that operates in accordance with the opening / closing operation of the car door;
The elevator apparatus according to claim 1, further comprising: a gripped device provided on the other side of the car or the landing and gripped by the gripping device. The elevator apparatus according to claim 7, wherein the gripping device is provided with a rubbing member that improves friction between the gripping device and the gripped device. The elevator apparatus according to claim 3 or 7, wherein the car door and the landing door have a plurality of rollers that sandwich the suspension rail in the vertical direction. A polyurethane resin is used for the rubbing member.
The elevator apparatus according to any one of claims 2, 4, 5, 6, and 8. High molecular polyethylene resin is used for the rubbing member.
The elevator apparatus according to any one of claims 2, 4, 5, 6, and 8.

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