WO2003008319A1

WO2003008319A1 - Elevator device

Info

Publication number: WO2003008319A1
Application number: PCT/JP2001/006133
Authority: WO
Inventors: Takenobu Honda
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2001-07-16
Filing date: 2001-07-16
Publication date: 2003-01-30
Also published as: EP1424302A4; DE60143366D1; CN1458901A; KR20030028842A; EP1424302A1; JP4975234B2; KR100520927B1; EP1424302B2; EP1424302B1; CN1264741C; JPWO2003008319A1

Abstract

An elevator device comprising a shaft including a platform and guide rails, a car disposed in the shaft, guided by the guide rails and lifted/lowered by a hoist through a rope, and a damping device connected to a car door opening/closing device to operate with the opening/closing of the car door and having a damping member installed in the shaft to suppress the swinging of the car.

Description

Description Elevator equipment Technical field

The present invention relates to a vibration damping device for attenuating a vibration of a car in an elevator, and more particularly to an elevator device having a vibration damping device provided in a car. Technology background

FIG. 7 is a sectional view of a hoistway showing a conventional elevator apparatus disclosed in, for example, Japanese Patent Application Laid-Open No. 3-185779. Fig. 8 is an external view of the car of the conventional elevator system. In the figure, a car 1 and a counterweight 2 are respectively guided by guide rails 5 erected on a hoistway via a guide shoe 4 to move up and down in a hoistway (not shown). A car 1 is connected to one end of the mouthpiece 3 and a counterweight 2 is connected to the other end of the rope 3. The rope 3 is wound around a drive sheave 6 provided in a machine room (not shown) provided above the hoistway.

In the operation of the elevator device, the drive sheave 6 rotates, and accordingly, the car 1 moves up and down. Regarding the operation of such an elevator system, a traction system in which the driving force is transmitted by friction between the drive sheave 6 and the rope 3 as shown in FIG. The roll cylinder type, in which the car 1 is simply suspended by the mouthpiece 3 and wound on a drum, is widely used. The present invention is effective in either configuration.

In FIG. 8, passengers can enter and exit the car by opening and closing the car door 8 attached to the car door opening / closing device 7 provided at the upper part of the car 1.

Elevator with such a configuration.In either the traction type or the winding type, if the length of the rope 3 from the car 1 to the drive sheave 6 is long, the rope 3 The magnitude of the vibration caused by the load fluctuation of car 1 is determined by the displacement of. When a long rope is used, such as an elevator system installed in a high-rise building, or a small diameter and a small number of ropes are used for ultra-compact and space-saving. In this case, the vibration caused by the load fluctuation of the car 1 increases.

Furthermore, in the future, in elevators that use synthetic fiber ropes or high-strength wire ropes as ropes 3, the relative elastic modulus will tend to decrease compared to the current level, and as a result, more and more cars 1 Is expected to swing easily.

In view of the above, the prior art Japanese Patent Application Laid-Open No. HEI 3-185777 discloses a vibration damping device provided in the car 1, which has a mechanism for pressing the guide rail 5 from the car 1. Accordingly, it has been proposed that the displacement and vibration of the car 1 be attenuated.

However, in order to actually realize the above-described conventional example, there were cases where the installation was not possible due to a shortage of installation space, and the weight of the car 1 was excessively increased.

As a method of attenuating the displacement and vibration of the car 1, other measures such as increasing the number of doors 3 or increasing the diameter may be considered. there were.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an elevator apparatus that can be reduced in weight and cost without requiring a large space and that can be reduced in cost is provided. The purpose is to gain. Disclosure of the invention

The elevator apparatus according to the present invention includes: a hoistway including a landing and a guide rail; and a ride, which is arranged in an ascending P path, guided by the guide rail and lifted up and down via a rope by a hoist. A vibration damping device that is connected to the car door opening / closing device, operates in accordance with the opening / closing operation of the car door, and urges the vibration damping member to the hoistway to suppress the swing of the car.

The vibration damping device is 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 the swing of the car.

Further, the vibration damping device is provided between the car door and the landing door, and engages the car door and the landing door when the car door is opened and closed, and controls the driving force of the car door opening and closing device. Communicate to The vehicle has an engaging member as a vibration damping member for suppressing the swing of the car.

The engaging member includes a car door engaging member provided on the car door and a hall door engaging member provided on the hall door, and a rubbing member is provided between the two engaging members. I have. Also, the car door engaging member has a U-shaped cross section extending along the elevator direction of the car, and the landing door engaging member has a U-shaped cross section which faces and engages the car door engaging member. The rubbing member is provided on an open pressing surface and a closed 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.

The vibration damping device is provided in one of the car and the landing, and operates in accordance with the opening and closing operation of the car door. The vibration damping device is provided in the other of the car and the landing and is gripped by the gripping device. A gripping device.

Further, the gripping device is provided with a rubbing member for improving friction between the gripping device and the device to be gripped.

In addition, the car door and the landing door have a plurality of rollers for vertically sandwiching the suspension rail.

Further, a polyurethane resin is used for the rubbing member.

Further, a high-molecular polyethylene resin is used for the rubbing member. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is an enlarged external view of a part of an elevator apparatus according to Embodiment 1 of the present invention, FIG. 2 is a front view of a car door opening / closing apparatus according to Embodiment 2 of the present invention,

FIG. 3 is a front view of a landing door device according to Embodiment 2 of the present invention,

FIG. 4 is an enlarged view of an engaging member that engages the car door and the landing door as viewed from above the hoistway, FIG. 5 is a front view of the car door opening and closing device according to the third embodiment of the present invention,

FIG. 6 is a front view of a landing door device according to Embodiment 3 of the present invention,

Fig. 7 is a sectional view of a hoistway showing a conventional elevator device, and

FIG. 8 is an external view of a car of a conventional elevator apparatus. BEST MODE FOR CARRYING OUT THE INVENTION

Example 1

FIG. 1 is an enlarged external view of a part of an elevator apparatus according to a first embodiment of the present invention. In FIG. 1, a cam 8a is attached to the outer end of the upper part 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 9 a is pushed up, the lever 9 a presses the vibration damping member 9 e against the guide rail 5. A sliding member (not shown) for increasing friction is fixed to the surface of the vibration damping member 9e on the guide rail 5 side.

When the door 8 is closed, the lever 9a is pulled down by the tension spring 9b and is stopped at the standby position by the stopper 9d. At 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 disclosed in the above-mentioned conventional example, Japanese Patent Application Laid-Open No. HEI 3-185777, performs damping on a car by using a special pressing device. However, this method can achieve the desired vibration damping action, but it requires a large installation space and a large weight, and significantly 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 in accordance with the opening / closing operation of the car door 8, and moves the vibration damping member 9e up and down the guide rail. To control the swing of the car.

The vibration damping device is provided between the car door 8 and the guide rail 5 and is provided with a link for pressing a sliding member (not shown) provided on the vibration damping member 9 e against the guide rail 5 to suppress the swing of the car. It has a mechanism 9.

Analysis of the biasing force of the damping member 9e against the guide rail 5 shows that a typical elevator with a 9-seater capacity of 80m and a lift of 80m requires a friction force of about 10kg or more. Is calculated.

For this reason, the vibration damping device according to the present embodiment is connected to the car door opening / closing device of the elevator car originally provided in the elevator, and operates in conjunction with the opening / closing operation of the car door 8 to control the vibration. The member 9e is urged toward the hoistway to suppress the swing of the car. Therefore, it is possible to reduce the weight and cost without requiring a large space, and to reduce the cost. It can be an efficient elevator device. Example 2.

FIG. 2 is a front view of a car door opening and closing device for explaining an elevator apparatus according to a second embodiment of the present invention. Figure 3 is a front view of the landing door device. FIG. 4 is an enlarged view of an engaging member for engaging the car door and the landing door as viewed 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 by the suspender 7a is opened and closed by a motor 7c connected via an interlocking rope 7b.

At a predetermined position of the car door 8, a car door engaging member 8 b as a vibration damping member is provided at a position corresponding to the landing door device 10. The car door engaging member 8b has a U-shaped cross section that extends along the vertical direction of the car.

In FIG. 3, the landing door device 10 is attached to the upper front part of the landing. With the suspension rail 10 e sandwiched between the roller 10 c and the roller 10 d, the landing door 10 b suspended by the suspension rail 10 e can move left and right along the suspension rail 10 e. Supported by

At a predetermined position of the landing door 1 Ob, a landing door engaging member 10a as a vibration damping member is provided at a position corresponding to the car door opening / closing device 7. The landing door engaging member 10a has a U-shaped cross section that extends along the elevator direction of the car.

The car door engaging member 8b and the landing door engaging member 10a face and engage when the car is located at the landing 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 1Ob 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 level. Therefore, when the doors 8 and 10 open and close, the driving force of the car door opening / closing device 7, that is, the driving force of the electric motor 7c is transmitted via the engaging members 8b and 10a to the landing as a hoistway. Energized by door 1 O b. Thereby, the swing of the car is suppressed.

In the present embodiment, a sliding member 8c is provided between the car door engaging member 8b and the landing door engaging member 10a to increase the frictional force. The rubbing member 8c is pressed against the open-side pressing surface 8b1 having a U-shaped cross section of the car door engaging member 8b and pressed upon closing. Provided on face 8b2. As a result, the frictional force between the engaging members 8b and 10a increases, and the vibration of the car is further attenuated, and the vibration of the car is reduced while the door is being opened and closed or when the door is fully opened. Can be attenuated.

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, providing the car door engaging member 8b requires less rubbing members 8c and is inexpensive. Can be.

In addition, in the vibration damping device of the present embodiment, while the door is being opened, only vibration damping due to the frictional force corresponding to the weight of the car door and the landing door can be expected, but when the door is fully opened. The pressing force during the operation can be freely operated by adjusting the driving force of the electric motor 7c.

Further, in the present embodiment, the car door and the landing door have a plurality of rollers for vertically sandwiching the suspension rail. If there is a gap at the top or bottom of the door and the car vibrates while the car door engaging member 8b and the landing door engaging member 10a are engaged, the door moves within the gap and the door moves. · Vibration · Noise is generated and the life of the equipment is shortened. For this reason, rollers will be placed at the top and bottom of the rail that guides the opening and closing of the door, and the rail will be sandwiched to eliminate the gap. In the present embodiment, the upper door rail is sandwiched. However, it goes without saying that the same effect can be obtained by providing a rail at the lower part or suppressing the vertical movement of the door at the threshold. Example 3.

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 a gripping device. The distance between the fixed side grip 8 d and the movable side grip 8 e changes when the car door 8 is open. A sliding member (not shown) is provided on the opposing surfaces of the fixed grip 8d and the movable grip 8e. When the car is not at the predetermined position, the fixed-side grip 8d and the movable-side grip 8e are widely opened so that the landing door engaging member 1Of as a device to be gripped can pass smoothly. I have. As shown in Fig. 6, the landing door engaging member 10f These rollers are provided side by side in the vertical direction.

On the other hand, when the car stops at the predetermined position and the car door 8 is opened, at the start of the door opening, the gap between the two grips 8d and 8e is wide open. Then, as the car door 8 opens, the cam 8 f pushes the movable side grip 8 e, approaches the fixed side grip 8 d, sandwiches and holds the landing door engaging member 1 Of. The shape of the cam 8f is determined so that the holding force of the movable 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 the magnitude of the holding force and the change of the holding force depending on the door position.

The cam 8 f moves in accordance with the opening and closing operation of the car door 8 due to the configuration of the link 8 h connecting the bin 7 d provided with the car door opening / closing device 7 and the pin 8 g provided on the car door 8. Also, an appropriate gripping force is generated.

While the movable side gripper 8 e is holding the landing door engaging member 1 Of, if the car tries to displace, it will slide at the gripped portion. To prevent the landing door 1 Ob from moving up and down, the car door 8 is suspended by rails 8 1 and 8 k, and the landing door 1 Ob is suspended by rollers 10 c and 10 d. 0 e is sandwiched. Thereby, the vibration damping effect is effectively exerted. The gripping device of the present embodiment is provided on the car side for simplifying the structure, but may be provided on the landing side or the hoistway side. Further, 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 instead of the roller.

In Examples 1 to 3, a polyurethane resin is used for the rubbing member. Polyurethane resin has high friction characteristics and excellent abrasion resistance, so it can be expected to have a high damping effect even if the opening force of the door opening / closing device is small. It can be used. In particular, since the hardness can be freely selected, the operation of cushioning the collision sound at the engaging portion can be freely operated, and both high vibration suppression effect and quietness can be achieved.

Further, a high-molecular polyethylene resin may be used for the rubbing member. High-polymer polyethylene resin is stable with no significant difference between static friction characteristics and dynamic friction characteristics. It can be used for a long time because it can exhibit vibration damping characteristics and has excellent wear resistance. Although the coefficient of friction is not very large, it has the characteristics of excellent quietness during sliding, and is a material suitable for a vibration damping device installed near the landing where passengers get on and off. Industrial applicability

The elevator apparatus according to the present invention includes a hoistway including a landing and a guide rail, and a car and a car which are arranged in the hoistway, guided by guide rails, and lifted by a hoist through ropes. A vibration damping device connected to the car door opening / closing device, which operates in accordance with the opening / closing operation of the car door, and for urging the vibration damping member to the hoistway to suppress the swing of the car. Therefore, it is possible to suppress the vibration due to the load fluctuation of the car due to passengers getting on and off, etc., and to use the car door opening and closing device, so there is no need for a special drive source, and a large space for installing the vibration suppression device This makes it possible to reduce the cost of the elevator because it has a simple structure without the need for a car and without an excessive increase in the weight of the car.

In addition, the vibration damping device has a link mechanism provided between the car door and the guide rail to press the sliding member provided on the vibration damping member against the guide rail to suppress the swing of the car. Therefore, it can be operated with a simple structure and reliably, and the weight of the car is not excessively increased due to the light weight of the device.

Further, the vibration damping device is provided between the car door and the landing door, and engages the car door and the landing door when the car door is opened and closed, and controls the driving force of the car door opening and closing device. And has an engaging member as a vibration damping member that 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 hall door engaging member provided on the hall door, and a rubbing member is provided between the two engaging members. I have. Therefore, the swing of the car can be further suppressed, and the vibration of the car can be attenuated even while the door is being opened.

Further, the car door engaging member has a U-shaped cross section extending along the direction of elevating the car, and the landing door engaging member has a U-shaped cross section which faces and engages the car door engaging member. The rubbing member is 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.

The vibration damping device is provided in one of the car and the landing, and operates in accordance with the opening and closing operation of the car door. The vibration damping device is provided in the other of the car and the landing and is gripped by the gripping device. A gripping device. Therefore, it is possible to reliably suppress the vibration due to the load fluctuation of the car.

Further, the gripping device is provided with a rubbing member for improving friction between the gripping device and the device to be gripped. Therefore, the vibration of the car can be more reliably suppressed.

In addition, the car door and the landing door have a plurality of rollers for vertically sandwiching the suspension rail. For this reason, door noise, vibration, and noise are suppressed, and the life of the equipment is extended. In addition, a polyurethane resin is used for the rubbing member. Polyurethane rubber has high friction characteristics and excellent abrasion resistance, so even if the opening force of the door opening and closing device is small, high vibration damping effect can be expected. It can be used for a long time. In particular, since the hardness can be freely selected, the operation of cushioning the collision sound at the engaging portion can be freely operated, and both high vibration suppression effect and quietness can be achieved. '

Further, a high-molecular polyethylene resin is used for the rubbing member. High-molecular-weight polyethylene resins can be used for a long period of time because there is no significant difference between static frictional characteristics and dynamic frictional characteristics, and they can exhibit stable vibration-damping characteristics and have excellent wear resistance. Also, it has the feature of excellent quietness when sliding, and it is very effective if it is installed near the landing where passengers get on and off.

Claims

The scope of the claims

1. A hoistway including a landing and guide rails,

A rider placed in the hoistway, guided by the guide rails, and lifted up and down via a rope by a hoist,

A vibration damping device connected to the car door opening / closing device for the car, operating in conjunction with the opening / closing operation of the car door, and urging a vibration damping member to the hoistway to suppress the swing of the car. An elevator device, characterized in that:

2. The vibration damping device includes a link mechanism provided between the car door and the guide rail, for suppressing a swing of the car by pressing a sliding member provided on the vibration damping member against the guide rail. Have

2. The elevator apparatus according to claim 1, wherein:

3. The vibration damping device is provided between the car door and the landing door, and engages the car door with the landing door when the car door of the car is opened and closed. It has an engaging member as the vibration damping member for transmitting the driving force to the landing door and suppressing the swing of the car.

2. The elevator apparatus according to claim 1, wherein:

4. The engaging member comprises a car door engaging member provided on the car door and a landing door engaging member provided on the landing door, and a sliding member is provided between the two engaging members. Is located

4. The elevator apparatus according to claim 3, wherein:

5. The car door engaging member has a U-shaped cross-section extending along the elevating direction of the car, and the landing door engaging member is opposed to and engages with the car door-engaging member. The rubbing member is provided on an open 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. 5. The elevator apparatus according to claim 4, wherein:

6. The sliding member is provided on the car door engaging member.

6. The elevator apparatus according to claim 5, wherein:

7. A vibration damping device is provided in one of the car and the landing, and is a gripping device that operates in accordance with opening and closing operations of the car door.

A gripping device that is provided on the other side of the car or the landing and is gripped by the gripping device

2. The elevator apparatus according to claim 1, wherein:

8. The gripping device is provided with a rubbing member for improving friction between the gripping device and the gripped device.

8. The elevator apparatus according to claim 7, wherein:

9. The car door and the landing door have a plurality of rollers that sandwich the suspension rail vertically.

The elevator apparatus according to claim 3 or 7, wherein:

10. A polyurethane resin is used for the rubbing member.

An elevator as claimed in any one of claims 2, 4, 5, 6, and 8, characterized in that:

1 1. High-molecular polyethylene resin is used for the rubbing member.

An elevator as set forth in any one of claims 2, 4, 5, 6, and 8, characterized in that: