JP4139168B2 - Seismic device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a seismic device that allows a vehicle to be mounted with a mechanism that simulates the shaking of an earthquake.
[0002]
[Prior art]
Conventionally, as this type of seismic device, for example, one shown in FIG. 4 is disclosed in JP-A-7-134541. Explaining this, a seismic mechanism 2 that is unitized is mounted on a seismic device (seismic vehicle) 1, and this seismic mechanism 2 swings a seismic chamber 3 in which a subject is placed in a predetermined vibration pattern. Subjects can enter room 3 to conduct disaster prevention training. The shaking mechanism 2 swings the shaking chamber 3 in the direction perpendicular to the vehicle body (Z-axis direction in the figure) and the front-rear direction (X-axis direction in the figure).
[0003]
[Problems to be solved by the invention]
By the way, in recent years, in buildings such as buildings and houses, seismic isolation mechanisms that suppress the shaking of the buildings when an earthquake occurs have become widespread. This seismic isolation mechanism is composed of, for example, laminated rubber or a rolling bearing, and supports the building so that it can be displaced in the horizontal direction with respect to the foundation, and functions to prevent the foundation from being transmitted to the building when an earthquake occurs.
[0004]
Therefore, it is desirable that the seismic isolation vehicle is also equipped with a seismic isolation mechanism so that the subject can experience the function of the seismic isolation mechanism. However, if you try to install the seismic isolation mechanism in the earthquake vehicle, the equipment will be large, the floor of the earthquake floor will be high and the boarding / exiting property will be worse, or the ceiling height of the earthquake floor cannot be secured sufficiently, There was a problem that it was difficult to realize.
[0005]
The present invention has been made in view of the above problems, and an object of the present invention is to provide a seismic device that can reduce the size of the device and experience the function of the seismic isolation mechanism.
[0006]
[Means for Solving the Problems]
The first invention is applied to a seismic floor equipped with a seismic floor on which a subject is placed and a seismic mechanism that swings the seismic floor.
[0007]
The seismic floor frame that supports the seismic floor, the seismic frame that is swung by the seismic mechanism, the seismic isolation mechanism that movably supports the seismic floor frame with respect to this seismic frame, and the seismic isolation and a locking mechanism for locking the actuating mechanism, a structure in which a subject by switching the operation of the locking mechanism can experience both shaking during shaking and inoperative during operation of the seismic isolation mechanism, OkoshiShinyuka frame Has a shape that houses the seismic frame inside, and is arranged at the same height as the seismic frame .
[0009]
According to a second invention, in the first invention, a pair of wedges projecting from the seismic frame in the same axial direction, a pair of lock pieces that move so as to sandwich each wedge, and a drive means that drives each lock piece It was characterized by having.
[0010]
Operation and effect of the invention
According to the first invention, in the state where the lock mechanism locks the operation of the seismic isolation mechanism, the seismic mechanism swings the seismic floor with a predetermined vibration pattern, and the subject rides on the seismic floor for training in disaster prevention behavior. Yes. The subject can experience the effect of the seismic isolation mechanism suppressing the shaking of the seismic floor while the lock mechanism is free to operate the seismic isolation mechanism.
[0011]
Since the seismic floor frame and the seismic frame are arranged at the same height, the heights of the seismic isolation mechanism and the seismic isolation mechanism can be reduced as compared with a structure in which they are stacked on each other. As a result, the floor of the seismic floor can be lowered to improve boarding / exiting performance, and the ceiling height of the seismic floor can be sufficiently secured in a limited space of the vehicle.
[0012]
According to 2nd invention, each lock piece pinches | interposes each wedge, and latches the relative displacement of the seismic floor frame with respect to the seismic frame.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0014]
As shown in FIG. 1, a seismic mechanism 2 is mounted on a seismic device (seismic vehicle) 1, and the seismic mechanism 2 swings a seismic chamber 3 in a predetermined vibration pattern. Subjects can enter 3 and conduct disaster prevention training.
[0015]
FIG. 2 is a front view of the seismic device 1 as seen from the rear side of the vehicle. In FIG. 2, 6 is a chassis frame (vehicle body) of the vehicle, and 7 is a rear wheel. The seismic mechanism 2 includes a subframe 10 fixed to the chassis frame 6, an X-axis direction moving frame 20 that reciprocates in the vehicle front-rear direction (X-axis direction in the drawing) with respect to the subframe 10, and an X-axis direction. A Y-axis direction moving frame 30 that reciprocates in the left-right direction of the vehicle (Y-axis direction in FIG. 2) with respect to the moving frame 20 and a reciprocation in a direction perpendicular to the Y-axis direction moving frame 30 (Z-axis direction in the figure). A moving earthquake frame (Z-axis direction moving frame) 40 is provided, and the vibration chamber 3 provided on the earthquake frame 40 can be swung in the three axial directions of front and rear, left and right, and up and down.
[0016]
An X-axis direction moving frame 20 is disposed inside the sub-frame 10, and a Y-axis direction moving frame 30 is disposed inside the X-axis direction moving frame 20. Because of this structure, the height of the seismic mechanism 2 can be reduced compared to a structure in which the frames are stacked on each other.
[0017]
As a means for supporting the X-axis direction moving frame 20 on the sub-frame 10, four linear rails 18 are fixed to the sub-frame 10, while the X-axis direction moving frame 20 is slidably engaged with each linear rail 18. Four linear guide blocks 28 to be joined are fixed. Each linear rail 18 extends in the front-rear direction of the vehicle, and supports the X-axis direction moving frame 20 via each linear guide block 28 so as to be movable in the front-rear direction of the vehicle.
[0018]
An X-axis direction moving hydraulic cylinder 29 is interposed between the sub-frame 10 and the X-axis direction moving frame 20, and the X-axis direction moving frame 20 moves in the front-rear direction of the vehicle by expansion and contraction of the X-axis direction moving hydraulic cylinder 29. To do.
[0019]
As means for supporting the Y-axis direction moving frame 30 on the X-axis direction moving frame 20, four linear rails 27 are fixed to the X-axis direction moving frame 20, while the Y-axis direction moving frame 30 has each linear rail 27. A linear guide block 37 that is slidably fitted to is fixed. Each linear rail 27 extends in the left-right direction of the vehicle, and supports a Y-axis direction moving frame 30 via each linear guide block 37 so as to be movable in the left-right direction of the vehicle.
[0020]
A Y-axis direction moving hydraulic cylinder 39 is interposed between the X-axis direction moving frame 20 and the Y-axis direction moving frame 30, and the Y-axis direction moving frame 30 is moved to the left and right of the vehicle by expansion and contraction of the Y-axis direction moving hydraulic cylinder 39. Move in the direction.
[0021]
As a means for supporting the seismic frame 40 on the Y-axis direction moving frame 30, four linear rails 34 are fixed to the Y-axis direction moving frame 30, while the seismic frame 40 can slide on each linear rail 34. The linear guide block 44 that fits in is fixed. Each linear rail 34 extends in the vertical direction, and supports the seismic frame 40 via each linear guide block 44 so as to be movable in the vertical direction.
[0022]
Four link mechanisms 50 are interposed between the Y-axis direction moving frame 30 and the seismic frame 40 so as to be extendable and retractable, and an interlocking frame 60 that interlocks the extension and contraction operations of the link mechanisms 50 is provided. A Z-axis direction moving hydraulic cylinder 49 is interposed between the Y-axis direction moving frame 30 and the interlocking frame 60, and the interlocking frame 60 is driven in the longitudinal direction of the vehicle by the expansion and contraction of the Z-axis direction moving hydraulic cylinder 49. Accordingly, each link mechanism 50 is extended and contracted synchronously, and the seismic frame 40 is translated in the vertical direction.
[0023]
The Y-axis direction moving frame 30 is provided with four stoppers 33 on which the interlocking frame 60 is seated. Each stopper 33 protrudes upward from the Y-axis direction moving frame 30 and abuts the lower surface of the interlocking frame 60 to stop the seismic frame 40 from further descending via each link mechanism 50.
[0024]
The seismic device 1 includes a seismic floor frame 65 that supports the seismic chamber 3, a seismic frame 40 that is swung by the seismic mechanism 2, and the seismic frame 40. The seismic isolation mechanism 70 that movably supports the seismic floor frame 65 and the lock mechanism 90 that locks the operation of the seismic isolation mechanism 70 are provided. It is set as the structure which can experience both the shaking at the time of 70 operation | movement, and the shaking at the time of non-operation.
[0025]
In the plan view of FIG. 3, the seismic frame 40 is formed in a rectangular frame shape, while the seismic floor frame 65 is formed in a rectangular frame shape surrounding the seismic frame 40. The shaking room 3 is provided on the shaking floor frame 65, and the shaking floor 66 of the shaking room 3 is fixed to the shaking floor frame 65, but is provided separately so as not to interfere with the shaking frame 40.
[0026]
As shown in FIGS. 1 and 2, the seismic floor frame 65 has a shape in which the seismic frame 40 can be accommodated, and is disposed at the same height as the seismic frame 40.
[0027]
The seismic isolation mechanism 70 includes a pair of rollers 71 connected to the seismic floor frame 65 and each receiving surface 72 that supports each roller 71 so as to allow rolling. The roller 71 is connected to the seismic floor frame 65 so as to be rotatable about the Y axis. The receiving surface 72 extends in the X-axis direction and is inclined so as to incline toward the central portion thereof, so that the roller 71 returns to the central portion of the receiving surface 72 by gravity. As a result, when the seismic frame 40 swings in the X-axis direction, each roller 71 rolls the receiving surface 72 in the X-axis direction and does not transmit the shaking in the X-axis direction of the seismic frame 40 to the seismic floor frame 65. Like that.
[0028]
Four guide mechanisms 80 are provided between the seismic frame 40 and the seismic floor frame 65 to restrict the seismic floor frame 65 from being displaced in the torsional direction with respect to the seismic frame 40. It works to keep the level.
[0029]
The guide mechanism 80 includes a linear rail 81 that is fixed to the seismic frame 40 and extends in the Z-axis direction, a linear rail 82 that is fixed to the seismic floor frame 65 and extends in the X-axis direction, and both the linear rails 81 and 82. The seismic floor frame 65 is supported so as to be movable in the longitudinal direction of the vehicle.
[0030]
The lock mechanism 90 is a pair of wedges 91 projecting from the lower part of the seismic frame 40 in the X-axis direction, a pair of lock pieces 92 that move so as to sandwich each wedge 91, and a drive unit that drives each lock piece 92 A pair of lock hydraulic cylinders (drive means) 93 is provided. Each lock piece 92 is supported so as to be movable in the X-axis direction with respect to the seismic floor frame 65. Each lock piece 92 has a recess 94 facing each other, and is pushed out by the lock hydraulic cylinder 93 so that each recess 94 sandwiches each wedge 91 and locks the relative displacement of the seismic floor frame 65 with respect to the seismic frame 40. To do.
[0031]
Next, the operation will be described.
[0032]
A controller (not shown) outputs a drive signal based on a preset operation mode, and via an servo mechanism, an X-axis direction moving hydraulic cylinder 29, a Y-axis direction moving hydraulic cylinder 39, and a Z-axis direction moving hydraulic cylinder. 49 controls the expansion and contraction operation. As a result, the seismic floor 66 is swung in the three axial directions of front and rear, left and right, and top and bottom by the seismic mechanism 2, and the subject enters the seismic chamber 3 to perform disaster prevention behavior training.
[0033]
In the mode in which the operation of the seismic isolation device 2 is locked, the controller extends each lock hydraulic cylinder 93 and the lock mechanism 90 locks the operation of the seismic isolation mechanism 70. At this time, the seismic frame 40 is swung in the three axial directions of front and rear, left and right, and up and down, but the seismic isolation mechanism 70 does not operate and the shaking in all directions is transmitted to the seismic floor frame 65. You can experience the shaking room 3 swinging in three axial directions, front and rear, left and right, and up and down.
[0034]
In a mode in which the seismic isolation device 2 is operated, the controller contracts each lock hydraulic cylinder 93 and the lock mechanism 90 frees the operation of the seismic isolation mechanism 70. At this time, the seismic frame 40 is swung in the three axial directions of front and rear, left and right, and up and down, while the seismic isolation mechanism 70 is operated to prevent the vibration in the front and rear direction from being transmitted to the seismic floor frame 65. The test subject can experience that the shaking of the seismic chamber 3 is suppressed in the front-rear direction.
[0035]
Due to the structure in which the seismic floor frame 65 and the seismic frame 40 are arranged at the same height, the height of the seismic mechanism 2 can be reduced as compared with a structure in which they are stacked on each other. That is, the height of the seismic mechanism 2 is hardly increased by the seismic floor frame 65. By suppressing the height of the seismic mechanism 2 in this way, the floor of the seismic chamber 3 can be lowered to improve the boarding / exiting performance, and the ceiling height of the seismic chamber 3 can be sufficiently secured in a limited space of the vehicle. .
[0036]
The seismic isolation mechanism 70 may be configured not to transmit not only the shaking of the seismic frame 40 in the X-axis direction but also the shaking in the Y-axis direction and the Z-axis direction to the seismic floor frame 65.
[0037]
The present invention is not limited to the above-described embodiment, and it is obvious that various modifications can be made within the scope of the technical idea.
[Brief description of the drawings]
FIG. 1 is a side view of a seismic device showing an embodiment of the present invention.
FIG. 2 is a front view of the same.
FIG. 3 is also a plan view.
FIG. 4 is a side view of a seismic device showing a conventional example.
[Explanation of symbols]
1 Seismic device 2 Seismic mechanism 3 Earthquake chamber 6 Chassis frame (body)
40 Seismic frame 65 Seismic floor frame 66 Seismic floor 70 Seismic isolation mechanism 80 Guide mechanism 90 Lock mechanism 91 Lock piece 92 Wedge 93 Hydraulic cylinder (drive means)

Claims (2)

In a seismic device having a seismic floor on which a subject is placed and a seismic mechanism that swings the seismic floor, a seismic floor frame that supports the seismic floor, a seismic frame that is swung by the seismic mechanism, and A seismic isolation mechanism that movably supports the seismic floor frame with respect to the seismic frame, and a lock mechanism that locks the operation of the seismic isolation mechanism. The structure is such that both the shaking when the mechanism is activated and the shaking when the mechanism is not operated can be experienced , and the seismic floor frame is configured to accommodate the seismic frame inside thereof and is arranged at the same height as the seismic frame. Seismic device characterized by that. Claim 1, characterized in that it comprises a wedge pair projecting in the same axial direction from said OkoshiShin frame, and the lock piece pairs which moves so as to sandwich the respective wedge, and driving means for driving each lock piece The seismic device described in 1.

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