JPH10217954A - Damping device for carrier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the vibration of a carrier effectively in a simple and low cost structure. SOLUTION: The seat 6 of a carrier 4 furnishes a seat back 7 and a seat part 8, the seat back 7 is composed of a seat back fixing plate 7a and a seat back movable plate 7b allowable to house in the seat back fixing plate 7a, while the seat part 8 is composed of a seat fixing plate 8a and a seat movable plate 8b allowable to house in the seat fixing plate 8a. The seat fixing plate 8a is connected rotatable to an outer frame 5 at the front end of its guide plate 9 through pins 10, and the seat part 8 is folded along the seat back 7. And linking to the folding operation of the seat part 8, the seat back movable plate 7b and the seat movable plate 8b are housed to the seat back fixing plate 7a and the seat fixing plate 8a, so as to reduce to half the projected area to the wind.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping device for a carrier in an automatic circulation type lift or the like.

[0002]

2. Description of the Related Art One steel rope (rope) serves as both a supporting rope and a rope, and the maximum of an automatic circulation type lift system in which a steel rope is automatically grasped and released at a stop and a transporter makes a U-turn. The drawback is that the transporter is vulnerable to the wind. Carriers suspended from steel ropes are structurally susceptible to wind drag.
Operation stopped at about 5 m / s.

[0003] In view of the above, various techniques have been proposed as a vibration damping technique for a transporter. As an example, there is a technique utilizing a dynamic vibration absorber as shown in FIG. 5 (see Japanese Patent Application Laid-Open No. 6-280934).

FIG. 5 is a diagram showing components of a pendulum type structure 101 to which a dynamic mass absorber 100 of a spring mass type is applied. The suspended body 102 is swingably suspended by a support portion O via a link 103, and the suspended body 10
2 and link 103, pendulum type structure 10 having mass m ₁
1 (hereinafter referred to as mass m ₁ ), for example, a lift carrier. Dynamic vibration reducer 100 is above the center of gravity of the mass m _1, is provided to enable the damping force applied to the mass m _1. That is, the dynamic vibration absorber 100 is not limited in form, but is functionally a pendulum (TMD) 104 having a mass m _{2 and} capable of linearly moving in a direction crossing the link 103.
(Hereinafter referred to as mass m ₂ ), this mass m ₂ and link 1
03, and a damper 106 having a damping coefficient c acting in parallel with the spring 105 having a spring constant k.

[0005] Then, attached to the mass m ₁ as described above, arranged above the dynamic absorber 100 than its center of gravity, relative to the natural vibration of the pendulum motion of the mass m _1, depending on the additional mass ratio Optimum tuning is performed and vibration damping force is applied. That is, the TMD 104 (mass m ₂ ) is attached to the upper part of the lift carrier 101 (mass m ₁ ), and the natural frequency of the mass m _{1 and} the frequency of the mass m ₂ are synchronized.
The amplitude of the mass m ₂ is amplified and the vibration energy is absorbed by the damper 106 to reduce the vibration.

[0006]

The main reason for stopping the operation of a ski lift under strong winds is that there is a risk that the carrier will swing and come into contact with the rope posts during strong winds. In addition, the vibration of the transporter tends to increase because the empty transporter after getting off the vehicle becomes lighter than when the passenger gets on the vehicle.

On the other hand, the above-described dynamic vibration absorber (pendulum)
The problem is that in the vibration control method using the method, the wind is not uniform, and the vibration is also random vibration. There was a point. In addition, providing a dynamic vibration absorber for each carrier is disadvantageous in terms of cost.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vibration damping device for a carrier that can effectively suppress vibration of the carrier with a simple and inexpensive structure.

[0009]

According to a vibration damping device for a transporter according to the present invention, at least one of a backrest portion and a seat portion of a transporter seat is divided into a fixed plate and a movable plate. It is characterized in that it is moved and overlaps with the fixed plate to reduce the plate area exposed to the wind.

In addition, a resistance plate which is located above the carrying device and is capable of opposing the crosswind is provided integrally with the carriage, and a moment with respect to a rope generated when the crosswind is received by the carriage and the resistance plate receives the moment. Are characterized in that the moments generated in each other cancel each other out.

Also, a guide roller is provided on a hanger of the transporter, and a guide rail which can roll when the guide roller passes along the side of the rope column is supported by the column via a spring and a damper. Features.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a vibration damping device for a carrier according to the present invention will be described in detail with reference to embodiments.

[First Embodiment] FIG. 1 is an explanatory view of the construction of a transporter in an automatic circulation type lift, showing a first embodiment of the present invention.

As shown in FIG. 1, a carrier 4 is suspended from a rope 1 via a gripping device 3 at the upper end of a hanger 2.
The transporter 4 includes an outer frame 5 and a seat 6.

The seat 6 has a backrest 7 and a seat 8, and the backrest 7 has a U-shaped backrest fixing plate 7a and a single-plate-shaped backrest that can be stored in the backrest fixing plate 7a. The seat portion 8 includes a movable plate 7b and a seat portion fixing plate 8a having a U-shaped cross section.
and a single sheet-shaped movable plate 8b which can be stored in a.

The backrest portion 7 and the seat portion 8 are arranged such that, when the backrest portion movable plate 7b and the seat portion movable plate 8b are housed, the projected area of each of the backrest movable plate 7b and the seat wind is approximately half that of the non-housed state. , The size of each is set.

Further, the backrest movable plate 7b and the seat movable plate 8b are provided with guide plate portions 9 integrally formed with the backrest fixed plate 7a and the seat fixed plate 8a, respectively.
To be stored or not stored.

The seat portion fixing plate 8a is rotatably connected to the outer frame 5 via a pin 10 at the tip of the guide plate portion 9. That is, the seat portion 8 is folded along the backrest portion 7 by the rotation of the seat portion fixing plate 8a.

The backrest movable plate 7b and the seat movable plate 8 are interlocked with the folding operation of the seat 8.
b is the backrest fixing plate 7a and the seat fixing plate 8a
It is designed to be stored in.

That is, the first lever (an interlocking mechanism) 11 connecting the outer frame 5 and the seat portion movable plate 8b is connected to the seat portion fixing plate 8a.
The second lever (interlocking mechanism) 12 that connects the seat-part fixing plate 8a and the backrest-moving plate 7b is pushed up by pushing up the seat-portion movable plate 8b during the rotation of the seat portion. When the fixed plate 8a rotates, the backrest movable plate 7b is pushed up to accommodate the backrest movable plate 7b.

With such a configuration, when a passenger gets on the vehicle, the seat portion 8 is expanded and the seat portion movable plate 8b and the backrest portion movable plate 7b are in a non-storing state as shown in the enlarged view of FIG. The function of the seat 6 is maintained as before.

On the other hand, when a passenger gets off the train,
The seat 8 is folded along the backrest 7. During this folding operation, the backrest movable plate 7b and the seat movable plate 8b are pushed up via the levers 11 and 12 with the rotation of the seat fixing plate 8a about the pin 10, and the backrest fixing plate 7a and Seat fixing plate 8a
Is stored in.

As a result, the projected area of the backrest portion 7 and the seat portion 8 against the wind becomes substantially half of the non-storing state of the backrest portion movable plate 7b and the seat portion movable plate 8b, and the wind acting on the transporter 4 causing vibrations. External force can be reduced and vibration can be kept low.

As a result, there is no danger that the transporter 4, which has become lighter when the passenger gets off the vehicle, shakes greatly due to the wind and touches the support of the rope 1. In other words, it is possible to increase the upper limit of the wind intensity at which the operation is stopped.

[Second Embodiment] FIG. 2 is an explanatory view of the construction of a transporter in an automatic circulation type lift, showing a second embodiment of the present invention.

This is because the backrest movable plate 7b in the backrest 7 of the first embodiment is linked to the backrest fixing plate 7a by interlocking with the rotation of the safety bar 13 pivotally supported by the backrest fixing plate 7a. This is an example of storing.

That is, the safety bar 13 and the backrest movable plate 7b are connected by the lever 14, and the safety bar 13 is rotated from the non-use position to the use position (the direction opposite to the direction of the arrow in the drawing). The backrest movable plate 7b is lifted up by the lever 14 to enter the non-storing state.

According to this, when the passenger gets off the vehicle, the safety bar 13 is rotated from the use position to the non-use position and the backrest movable plate 7b is stored in the backrest fixing plate 7a. The projected area becomes approximately half of the non-storing state of the backrest movable plate 7b, the external wind force acting on the transporter 4 that causes vibration can be reduced, and the vibration can be suppressed low.

Third Embodiment FIG. 3 is a side view (FIG. 3A) and a front view (FIG. 3B) of a transporter in an automatic circulation type lift, showing a third embodiment of the present invention. .

In this case, a resistance plate 15 of a predetermined shape is provided on a normal transporter 4 via a connecting rod 15a standing upright from the hanger 2 so as to be located above the squeezing device 3 so as to face a crosswind. It is an example.

According to this, the moment on the rope 1 generated when the transporter 4 receives the crosswind and the moment generated when the resistance plate 15 receives the counterbalance cancel each other, and the vibration is reduced by maintaining the balance against the external wind force. can do.

In this embodiment, there is an advantage that the effect is effective regardless of the state such as when the passenger gets on or off.

[Fourth Embodiment] FIG. 4 is a front view of a vibration damping device for a transporter in an automatic circulation type lift, showing a fourth embodiment of the present invention.

This means that one end of a spring 18 and a damper 19 arranged in parallel are rotatably connected to a support bracket 17 installed on a support post 16, and the other end of the spring 18 and damper 19 is connected to the support bracket 17 by a support rod 20. This is an example in which a guide roller 22 that can be rolled on the guide rail 21 is provided at an intermediate portion of the hanger 2 of the transporter 4 while being connected to a suspended guide rail 21 via the guide rail 21.

According to this, when the transporter 4 swings, the guide roller 22 comes into contact with the guide rail 21 and rolls. The impact at this time is absorbed by the spring 18 and the vibration is reduced by the damper. It is attenuated at 19 and collision of the transporter 4 with the support 16 is prevented.

In this embodiment, since only the guide roller 22 needs to be provided on the transporter 4 side, it is advantageous in terms of cost.

The present invention is not limited to the above embodiments,
It goes without saying that various changes can be made without departing from the spirit of the present invention.

[0038]

According to the first aspect of the present invention, at least one of the backrest portion and the seat portion of the carrier seat is divided into a fixed plate and a movable plate. By reducing the area of the board exposed to the wind, the movable board and the fixed board can be overlapped when the passenger is unloaded,
At this time, the area of the plate exposed to the wind can be reduced, and the vibration of the transporter can be suppressed to a low level with a simple and inexpensive structure.

According to the second aspect of the present invention, a resistance plate which is located above the carrying device and is capable of opposing the crosswind is provided integrally with the carrying device, and the moment to the rope generated when the carrying device receives the crosswind. And the moment generated when the resistance plate is received cancel each other, it is possible to keep the balance against the external force acting on the carrier that causes vibration, and to suppress the vibration of the carrier with a simple and inexpensive structure be able to.

According to the third aspect of the present invention, while the guide rollers are provided on the hanger of the transporter, the guide rails that can roll when the guide rollers pass beside the columns of the rope are provided.
Because it was supported on the support via a spring and a damper,
Vibration energy of the carrier caused by the wind is absorbed by the guide rail portion, and collision of the carrier with the support can be prevented. In addition, since the vibration damping device is provided by the support-side mechanism, it can be realized with a smaller work amount and construction cost than that by the carrier-side mechanism.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a configuration of a transporter in an automatic circulation type lift according to a first embodiment of the present invention.

FIG. 2 is a configuration explanatory view of a transporter in an automatic circulation type lift, showing a second embodiment of the present invention.

FIG. 3 is a side view (FIG. 3A) and a front view (FIG. 3B) of a transporter in an automatic circulation type lift, showing a third embodiment of the present invention.

FIG. 4 is a front view of a vibration damping device for a transporter in an automatic circulation type lift, showing a fourth embodiment of the present invention.

FIG. 5 is an explanatory view of a conventional vibration damping device using a dynamic vibration absorber.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rope 2 hanger 3 gripping device 4 carrier 5 outer frame 6 seat 7 backrest 7a backrest fixing plate 7b backrest movable plate 8 seat 8a seat fixing plate 8b seat movable plate 9 guide plate 10 pin 11 lever 12 Lever 13 Safety bar 14 Lever 15 Resistance plate 15a Connecting rod 16 Support 17 Support bracket 18 Spring 19 Damper 20 Support rod 21 Guide rail 22 Guide roller

 ──────────────────────────────────────────────────続 き Continued from the front page (72) Inventor Tetsuya Koizumi 1-8-1 Koura, Kanazawa-ku, Yokohama-shi, Kanagawa Prefecture Inside Yokohama Research Laboratory, Mitsubishi Heavy Industries, Ltd.

Claims (3)

[Claims] At least one of a backrest portion and a seat portion of a carrier seat is divided into a fixed plate and a movable plate, and the movable plate is moved and overlapped with the fixed plate as necessary to reduce a plate area exposed to wind. A vibration damping device for a carrier, wherein the vibration is suppressed. 2. A resistance plate, which is located above the carrying device and is capable of opposing a crosswind, is provided integrally with the carriage, and a moment generated by the rope when the crosswind is received and the resistance plate receives the moment. A vibration damping device for a carrier, wherein the moments generated in the vibration cancel each other. 3. A guide roller is provided on a hanger of a transporter, and a guide rail that can roll when the guide roller passes along the side of a rope column is supported by the column via a spring and a damper. Characteristic vibration control device for transport equipment.