JPH075392Y2 - Seismic house - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating vehicle, and more particularly to a technique for allowing a vibrating house main body to move up and down twice while a cam rotates once.

[0002]

2. Description of the Related Art As is well known, a seismic house has been proposed and put into practical use. The above-mentioned seismic house is a prefabricated house in which a vibration is generated from a floor plate by a vibration generating mechanism to give a vertical vibration, a horizontal vibration, or a combination of these vibrations.

Now, looking at the vibration generating mechanism, it has a motor, a speed reducer and a cam. After the rotation from the motor is reduced by the speed reducer, the cam is rotated to move the seismic house up and down. It is something to move.

The cam used in the vibration generating mechanism for vertically moving the seismic house is a commonly used cam, and has one mountain at a circumference of 360 degrees. Met.

[0005]

According to the above prior art, there are some problems in the following points. That is, when a predetermined seismic intensity is to be generated, the one mountain cam gives one vertical motion during one revolution, and when a large seismic intensity is to be obtained, the motor is driven at a relatively high speed. Must be rotated.

[0006] Specifically, according to an experimental example, when an attempt is made to obtain a vibration equivalent to a seismic intensity of 7 with the above-mentioned one mountain cam, the number of revolutions of the above-mentioned one mountain cam is 180 revolutions per minute. I had to rotate it. In other words, since the motor rotates at a high speed within a fixed time, the torque is small, and the motor must be vibrated by this motor, which requires a motor with a larger horsepower. .

Therefore, the object of the present invention is to provide a vibration generating mechanism for vibrating the seismic house, in which the rotation of the motor is transmitted to the cam through the speed reducer, and the cam causes the seismic house to move up and down. In this case, it is possible to increase the motor torque and decrease the horsepower of the motor by setting the rotation speed of the motor rotated within a fixed time to be lower than the conventional value. Therefore, it is possible to adopt a small motor, and to provide a technology that makes it easy to make the vibration generating mechanism small and compact.

[0008]

In order to solve the above object, the present invention has the following technical means. That is, to explain with reference to the reference numerals in the accompanying drawings corresponding to the embodiments, the present invention uses the vibration generating mechanism 4 from the floor plate 3 of the oscillating house main body 2 to
A system for vertically moving the earthquake-promoting house body 2, wherein the vibration generating mechanism 4 vertically moves by rotating the cam 19 after decelerating the rotation of the motor 15 by the speed reducer 16. The cam 19 is formed in an oval shape so that the house body 2 can be moved up and down twice within the range of 360 degrees per revolution, and the needle bearing 20 is a perfect circle outside the oval-shaped cam 19. In addition, there is a vertical movement interlocking member 21 that interlocks with the seismic vibration house main body 2 via the needle bearing 20.

[0009]

According to the above-mentioned structure, the cam 19 has one round 36
When the vibration-causing house body 2 is formed in an oval shape so that it can move up and down twice within the range of 0 degree, when the rotation of the motor 15 is transmitted to the cam 19 via the speed reducer 16,
The oscillating house main body 2 moves up and down twice per one rotation of the cam 19, and it is possible to give the oscillating house main body 2 a vertical oscillating motion with half the number of rotations of the motor 15 as compared with the conventional case. . More specifically, according to the experiment, when a seismic intensity similar to the conventional seismic intensity of 7 is generated, the motor is operated once per minute.
Although it had to be rotated 80 times, the oval-shaped cam 19 according to the present invention requires 90 rotations per minute to generate the seismic intensity similar to the above.

[0010]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Referring to FIG. 1, reference numeral 1 denotes an oscillating house, which is provided with a vibration generating mechanism 4 on a bottom surface of a floor plate 3 of the oscillating house main body 2, and the oscillating generating mechanism 4 vertically moves the oscillating house main body 2. Can give a tremor.

In the seismic house main body 2, pillars 5 are erected at four corners of a floor plate 3 via brackets 6, three side walls 7 are attached between the pillars 5, and the pillars 5 are erected at the upper ends thereof. Ceiling board 10 through beam 8 and center beam 9 installed between beams 8
It is constructed by stretching.
, So that they can be separated by removing the bolt 11. From the part of the side wall 7 to which one side wall 7 is to be attached, the experience person can enter and exit the seismic house body 2.

Although the seismic house main body 2 is shown as being able to be assembled, it may be assembled in advance in a fixed manner, or even if it is disassembled and assembled, a smaller member is used. May be divided into Further, the part where the experience person goes in and out of the seismic house main body 2 is a part where one side wall 7 is eliminated, but the other side wall 7 has an opening / closing door (not shown).
It is also possible to provide an occupant and to allow an experienced person to enter and exit the earthquake-promoting house body 2 through the opening / closing door.

A table 12, a chair 13 and a lighting device 14 are arranged in the main body 2 of the seismic house in order to approach the inside of the building such as the inside of an actual house. Furniture such as beds may be arranged.

Next, the structure of the vibration generating mechanism 4 for giving a vibration to the vibration-causing house body 2 will be described. Reference numeral 15 is a motor that receives power supply and generates a rotation output, and the number of rotations in a fixed time can be freely adjusted. A speed reducer 16 that reduces the number of revolutions of the motor in a fixed time is connected to the motor 1.
The output shaft of No. 5 has a reduction gear input shaft 17 and a reduction gear output shaft 18 which are continuous with each other, and reduces the number of rotations from the reduction gear input shaft 17 and transmits it to the reduction gear output shaft 18.

The speed reducer output shaft 18 is connected to a cam 19, and a needle bearing 20 having a perfect circular shape is provided outside the cam 19. The needle bearing 20 interlocks with the seismic house main body 2 through the needle bearing 20. There is a vertical movement interlocking member 21. The needle bearing 20 is connected to the cam 19
A needle bearing restraining member 21 is attached to the cam 19 by means of a stop bolt 23 so as to be located on the outer side of. Further, in order to fix the reduction gear output shaft 17 continuous to the reduction gear 16 to the cam 19, a key 26 is fitted across the reduction gear output shaft 17 and the cam 19.

That is, the rotational torque from the motor 15 is transmitted to the cam 19 after the rotational speed is reduced by the speed reducer 16, and the cam 19 rotates. The rotation of the cam 19 causes the needle bearing 20 to move up and down, and the up-and-down motion interlocking member 21 connected to the needle bearing 20 moves up and down. And
Seismic house body 2 connected to the vertical movement interlocking member 21
Is configured to move up and down.

The above is the substantially same part as the conventional one, and the characteristic features of the present invention will be described below. In the present invention, the cam 19 is a seismic house main body twice within a range of 360 degrees per revolution. 2 is formed in an oval shape so that it can move up and down. That is, the oval-shaped cam 19 has two ridges, and the needle bearing 20 moves up and down twice during one rotation of the cam 19, and the up-and-down movement interlocking member 21 moves up and down twice in conjunction with this. Can move up and down. Then, the seismic house main body 2 connected to the vertical movement interlocking member 21 can move up and down twice.

The motor 15, the speed reducer 16, and the needle bearing restraining member 22 are fixedly held on a base 25 by a holding member 24, and the base 25 is a building and a floor surface, a vehicle, or the ground. Conceivable.

Based on the above structure, the seismic motion will be described. The rotation torque from the motor 15 is transmitted from the reduction gear input shaft 17 to the reduction gear 16, is decelerated by the reduction gear 16, and then is transmitted to the oval-shaped cam 19 via the reduction gear output shaft 18. . And the cam 1
The needle bearing 2 on the outside of the cam 19 by the rotation of 9
0 moves up and down, and the up-and-down motion interlocking member 21 connected to the needle bearing 20 moves up and down, and the up-and-down motion interlocking member 2
The seismic house main body 2 is vibrated up and down via 1.

When the seismic vibration house main body 2 is vertically vibrated, the seismic vibration house main body 2 obtains a certain seismic intensity, and the magnitude of the seismic intensity is adjusted by changing the number of revolutions of the motor 15 in a constant time. It can be freely adjusted within a predetermined range by performing adjustment.

That is, the operation of the cam 19 during one rotation will be described with reference to FIGS. 2 to 7. When the imaginary line connecting the two peaks of the cam 19 is horizontal, the cam 1 will be described.
9 is in a sleeping state, and when the vertical state is in a standing state, first, the cam 19 moves from the sleeping state to the 9
When the oscillating house main body 2 is rotated by 0 degrees and is in a standing state in which one of the mountains is located at the upper side, the oscillating house body 2 is moved from the lower position to the upper position in association with the cam 19. (See FIG. 2 and FIG. 3) Next, when the cam 19 further rotates 90 degrees and becomes in the sleeping state again, the seismic house main body 2 is also positioned downward. And
When the cam 19 further rotates 90 degrees and the other mountain is in an upright position, the seismic house body 2 again moves from the lower side to the upper side (see FIGS. 6 and 7). The rotation of 19 causes the seismic house body 2 to move from the upper position to the lower position. That is, while the cam 19 makes one rotation,
The earthquake-promoting house body 2 is for vertically vibrating twice.

Further, in this example, an oval-shaped cam with respect to the central axis of the speed reducer output shaft 18 from the speed reducer 16 so that the two upper and lower vibrations of the seismic house main body 2 have different amplitudes. 19 The center axis is eccentric with an eccentricity h. As a result, the seismic vibration is generated when one of the mountains is located above and the cam 19 is standing up. The position of the house body 2 is located above the other mountain and the seismic vibration is generated when the cam 19 is standing up. The height with respect to the position point of the house body 2 changes by a height corresponding to twice the eccentricity h. Since the center axis of the cam 19 is eccentric with respect to the rotation axis in this way, when the oscillating house body 2 is vertically vibrated by the cam 19, a vibration in a state closer to the actual vibration of the earthquake is obtained. Easy to get caught. Also, of course, it may be considered that the eccentricity is not made.

As described above, by forming the cam 19 into an oval shape having two peaks, the vibrating house body 2 vibrates up and down twice twice while the cam 19 makes one rotation.

[0024]

As described above in detail, the cam has one round 36
Seismic quake twice within the range of 0 degree The oval shape of the house body allows it to move up and down, so when the rotation of the motor is transmitted to the cam through the speed reducer, it occurs for each rotation of the cam. Since the main body of the quake moves up and down twice, it is possible to reduce the number of rotations of the motor in a fixed time to one half of the conventional one. Since the number of rotations of the motor is small, the torque of the motor can be large, and thus it is easy to use a motor with low horsepower, and the vibration generation mechanism is small,
Compact and easy to realize.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a seismic house according to the present invention.

FIG. 2 is a view showing a state where the cam of the seismic house in the present invention is sleeping.

FIG. 3 is a partial cross-sectional view showing the right side of FIG. 2 of the seismic house according to the present invention.

FIG. 4 is a diagram showing a state in which one mountain of the seismic house in the present invention is located above and a cam stands.

5 is a partial cross-sectional view showing the right side of FIG. 4 of the seismic house according to the present invention.

FIG. 6 is a view showing a state in which the other mountain of the earthquake-promoting house in the present invention is located above and a cam is standing.

FIG. 7 is a partial cross-sectional view showing the right side of FIG. 6 of the seismic house in the present invention.

[Explanation of symbols]

 1 Seismic House 2 Seismic House Main Body 3 Floor Board 4 Vibration Generation Mechanism 5 Pillar 6 Bracket 7 Sidewall 8 Beam 9 Center Beam 10 Ceiling Board 11 Bolt 12 Table 13 Chair 14 Lighting Fixture 15 Motor 16 Reducer 17 Reducer Input Shaft 18 Decelerator Machine output shaft 19 Cam 20 Needle bearing 21 Vertical movement interlocking member 22 Needle bearing restraining member 23 Stop bolt 24 Holding member 25 Base 26 Key h Eccentricity

Claims (1)

[Scope of utility model registration request] 1. A vibrating mechanism 4 vertically moves a floor plate 3 of a vibrating house body 2 by a vibrating mechanism 4, wherein the vibrating mechanism 4 rotates a motor 15 by a speed reducer 16. When the cam 19 is moved up and down by rotating the cam 19 after deceleration, the cam 19 is
The oscillating house body 2 is formed in an oval shape so as to be able to move up and down twice within a range of 360 degrees per revolution, and a perfect circular needle bearing 20 is provided outside the oval-shaped cam 19. An oscillating house characterized in that there is a vertical movement interlocking member 21 that interlocks with the oscillating house body 2 via 20.