JP4827124B2 - 3D shaking table for vibration display - Google Patents

Description

  The present invention belongs to the technical field of a three-dimensional shaking table for vibration display.

For example, in order to simulate an earthquake, there is a three-dimensional vibration table that applies vibration in a three-dimensional direction to an article placed on the table. As an example, there is a three-dimensional shaking table described in Japanese Patent Laid-Open No. 5-93671 (Patent Document 1). This three-dimensional shaking table can vibrate the shaking table in three dimensions by applying vibration to the shaking table using a horizontal X-axis shaker, a horizontal Y-axis shaker, and a vertical Z-axis shaker.
JP-A-5-93671

  However, the conventional three-dimensional shaking table is designed and manufactured on the premise that it is installed in a test building or the like, so the structure is complicated, large and heavy, and difficult for an adult to carry. For this reason, it was not suitable for uses such as demonstrating the seismic performance of products at stores.

The three-dimensional shaking table for vibration display according to claim 1,
A base plate,
A motor attached to the base plate;
A diaphragm disposed facing the base plate with the motor in between,
A transmission mechanism for reciprocating the diaphragm by converting the rotation of the motor into a reciprocating motion;
A pulling means connected to the base plate and the diaphragm and biasing both together;
When the motor is stopped, the lower surface of the diaphragm comes into pressure contact with the head, and when the motor rotates, the diaphragm that is reciprocally displaced by the transmission mechanism intermittently collides with the head at the height. It is characterized by comprising an upright elastic column.

In this vibration display three-dimensional vibration table, when the motor is rotated, the transmission mechanism converts the rotation of the motor into a reciprocating motion to reciprocate the diaphragm.
Since the base plate and the diaphragm are biased close to each other by the pulling means, the biasing force is resisted when the transmission mechanism drives the diaphragm upward.

  When the motor is stopped, the lower surface of the diaphragm is in pressure contact with the head of the elastic strut, but when the diaphragm is displaced upward, for example, by the transmission mechanism when the motor rotates, the lower surface of the diaphragm is disengaged from the head of the elastic strut. Leave. Subsequently, when the diaphragm is displaced downward, for example, the lower surface of the diaphragm once separated from the head of the elastic support as described above collides with the head of the elastic support this time. That is, when the diaphragm is reciprocally displaced by the transmission mechanism, the elastic struts are repeatedly detached and collided from the head.

  When the diaphragm collides with the head, the elastic support column is elastically deformed (for example, deformed to be compressed toward the base plate) by the impact, and thus the diaphragm is flipped up by the repulsive force. However, since it is pulled to the base plate side by the pulling means, there is a limit to the range in which it can be raised.

  In addition to being supported by elastic struts, the diaphragm is pulled to the base plate side by the tension means, so it is bounced back by the elastic struts and pulled by the tension means due to the collision, and is not on the elastic struts. Vibrates regularly.

  Thus, the three-dimensional shaking table for vibration display according to claim 1 has a simple structure and can be made small and light, so that it can be easily carried by one adult. For this reason, it becomes a thing suitable for uses, such as demonstrating the earthquake resistance performance of goods in stores, such as a home center.

  There is no restriction on the material of the base plate, and a plywood, a plastic plate, a metal plate or the like can be used. There is no restriction on the material of the diaphragm, and a plywood, a plastic plate, a metal plate, or the like can be used. Further, when the base plate is made transparent as in the ninth aspect, the internal mechanism can be observed from the lower side when a three-dimensional vibration table for vibration display is installed on the transparent table.

A specific configuration of the transmission mechanism is not particularly limited as long as the rotation of the motor can be converted into a reciprocating motion to reciprocate the diaphragm.
The simple structure and high reliability as the transmission mechanism is a mechanism including the crank and the connection rod according to claim 3.

  With this configuration, since the driving force acting on the diaphragm from the connection rod includes not only the downward direction but also the horizontal movement component, the diaphragm can be driven back and forth in the vertical and horizontal directions, which is more preferable. Three-dimensional vibration occurs.

  In this case, as described in claim 4, the rotating shaft and the connection rod are loosely fitted so that the connection rod can be relatively displaced in addition to relative rotation around the rotating shaft. This increases the degree of freedom of the vibration range of the diaphragm.

  According to a fifth aspect of the present invention, when the rotating rod is attached to the connection rod via a support member and pushes up the lower surface of the diaphragm when the connection rod drives the diaphragm, the diaphragm is The efficiency of driving upward is improved.

  Although only one transmission mechanism is required, a plurality of transmission mechanisms may be used. In the case where a plurality of transmission mechanisms having different timings at which the driving direction with respect to the diaphragm is switched are provided as described in claim 2, for example, when one transmission mechanism pushes up the diaphragm, the other is Since the movement of pulling down becomes possible, the three-dimensional displacement of the diaphragm can be made more complicated.

  Examples of the pulling means for biasing the base plate and the diaphragm close to each other include a coil spring and a rubber string. This pulling means does not need to be strong because it only limits the moving range of the diaphragm as described above.

  The elastic column can be realized by a coil spring or a columnar rubber. Since the elastic strut is required to have a repulsive force for jumping up the diaphragm that has collided from above, for example, when compared with a coil spring, a stronger one than a coil spring as a tension means is used.

  Further, it is desirable that the head of the elastic column is made of a material having a smooth surface as described in claim 8. Examples of such materials include hard plastics and metals, and if these are used at least on the surface of the portion that comes into contact with the diaphragm (for example, if a cap is attached to a coil spring), the diaphragm and head Since the friction with the part is reduced, the three-dimensional vibration is improved.

  The three-dimensional shaking table for vibration display is used for demonstrating the seismic performance of a product at a store such as a home center, so that a general consumer is usually in the vicinity during operation.

  At that time, if the internal structure (motor, transmission mechanism, etc.) disposed between the diaphragm and the base plate is visible, there may be a person who wants to touch the internal structure. Therefore, as described in claim 6, it is desirable to provide shielding means for making the internal structure disposed between the diaphragm and the base plate invisible from the outside.

  As the shielding means, for example, a curtain, a strap shape, a blind shape, a window blind shape, or the like that can be deformed following the vibration of the diaphragm (does not inhibit the vibration of the diaphragm) may be attached to the diaphragm.

  Further, since it is used for a demonstration at a store as described above, if a sound generating means for generating a sound when the motor rotates is provided as described in claim 7, the sound, for example, a mechanical abnormal sound is generated. , Can attract the attention of passing consumers.

  Even if no sound generating means is provided for that purpose, the mechanical sound of the transmission mechanism, the sound generated when the diaphragm collides with the elastic column, etc., that is, the sound generated when the three-dimensional vibration table for vibration display is operated. Is enough. In other words, the portion that generates sound in conjunction with the operation of the three-dimensional shaking table for vibration display also serves as the sound generation means.

Next, embodiments of the present invention will be described based on examples of the present invention. The present invention is not limited to the following examples and the like, and it goes without saying that the present invention can be implemented in various ways without departing from the gist of the present invention.
[Example]
As shown in FIG. 1, a three-dimensional vibrating table 1 for vibration display (hereinafter simply referred to as a three-dimensional vibrating table 1) according to the present embodiment includes a base plate 2 and a vibrating plate 4 that are arranged facing each other. Yes.

  Four elastic struts 5 made of coil springs are erected on the base plate 2. A hard plastic cap 6 is put on the head of the elastic column 5. The cap 6 is in contact with the lower surface 4 a of the diaphragm 4 to support the diaphragm 4. Note that the diaphragm 4 and the elastic column 5 are not connected, and only the cap 6 is in contact.

  A tension spring 7 is disposed between the base plate 2 and the diaphragm 4. The tension spring 7 is a tension coil spring, and both ends thereof are connected to the base plate 2 and the diaphragm 4, respectively, so that the base plate 2 and the diaphragm 4 are biased in a direction in which they approach each other (tensile means). Fall under).

Although the diaphragm 4 is pulled toward the base plate 2 by the tension spring 7, the elastic support 5 supports the diaphragm 4, so that a space is secured between the two plates.
A motor 3 is attached to the upper surface of the base plate 2.

Cranks 9 and 11 are respectively attached to the output shafts 3a and 3b of the motor 3, and the cranks 9 and 11 rotate together with the output shafts 3a and 3b.
A rotating shaft 9a is erected at the tip of the crank 9, and one end of the connection rod 10 is connected to the rotating shaft 9a. As shown in an enlarged view in FIG. 1C, the inner diameter of the bearing hole 10a of the connection rod 10 is larger than the outer diameter of the rotating shaft 9a, and the rotating shaft 9a is loosely fitted in the bearing hole 10a. Yes. However, since the diameter of the head of the rotating shaft 9a is larger than the inner diameter of the bearing hole 10a, it does not come off. For this reason, the connection rod 10 is not only capable of relative rotation about the rotation shaft 9a, but can also be relatively displaced in the longitudinal direction of the connection rod 10 within the range of the diameter difference between the rotation shaft 9a and the bearing hole 10a. Further, displacement that changes the angle between the axis of the rotation shaft 9a and the connection rod 10 (displacement in the direction of tilting the connection rod 10) is also possible.

The other end of the connection rod 10 is connected to a shaft 14 attached to the lower surface 4 a of the diaphragm 4 by a bracket 13.
In addition, a rotation roller 16 is attached to the connection rod 10 via a support member 15.

  With this configuration, when the motor 3 is rotated, the crank 9 is rotated, the rotation shaft 9a is rotated along a circular path centering on the output shaft 3a, and the connection rod 10 is directed toward the shaft 14. Pull out and pull back. Further, the rotating roller 16 is displaced up and down following the connection rod 10, and when the crank 9 is in the vicinity of the 12 o'clock position when it is raised, it pushes up the lower surface 4a of the diaphragm 4, and when it is lowered, it is separated from the lower surface 4a.

  The crank 11 attached to the output shaft 3b, the connection rod 12 connected to the crank 11, the connection structure of the connection rod 12 and the diaphragm 4, and the like include the output shaft 3a, the crank 9, the connection rod 10, and the bracket 13. Further, since it is the same as the above-described structure by the shaft 14, the detailed description is omitted. However, the crank 9 attached to the output shaft 3a and the crank 11 attached to the output shaft 3b have a phase difference (110 degrees in this embodiment) in the rotation direction of the output shafts 3a and 3b. In addition, a rotation roller is not attached to the connection rod 12.

  A control unit 18 for controlling power to the motor 3 is attached to the upper surface of the base plate 2. The control unit 18 includes a switch (not shown), and the motor can be turned on and off by this switch. The control unit 18 includes a multi-timer circuit, and can be set to automatically repeat on and off.

  Further, a curtain 19 having a length reaching the base plate 2 is attached to the diaphragm 4. Although only a part of the curtain 19 is shown in FIG. 1A, the curtain 19 actually surrounds the entire circumference of the diaphragm 4. For this reason, unless the curtain 19 is turned up, the internal structure arranged between the base plate 2 and the diaphragm 4 cannot be seen from the outside. The skirt portion of the curtain 19 is free, and the curtain 19 does not disturb the vibration of the diaphragm 4. In addition, as long as the vibration of the diaphragm 4 is not disturbed, the skirt portion of the curtain 19 may be connected to the base plate 2 by a surface fastener, for example. Then, it is possible to prevent the curtain 19 from being carelessly turned up and inserting a hand into the internal structure.

The three-dimensional shaking table 1 is used for display (demonstration) of an adhesive sheet 20 for preventing falling of furniture or the like, for example.
Specifically, as illustrated in FIG. 2, the adhesive sheet 20 is adhered to the upper surface of the diaphragm 4, and a vase 21 or the like is placed on the adhesive sheet 20 to adhere to the adhesive sheet 20. An adhesive sheet 20 is also interposed between the three-dimensional vibration table 1 and the display table 23 to prevent the three-dimensional vibration table 1 from moving on the display table 23. In this embodiment, the pressure-sensitive adhesive sheet 20 is a gel sheet (Kitakawa Kogyo Co., Ltd., trade name) having a three-dimensional network structure in which a large number of polymers are partially connected to each other by bonding of specific parts on the chain. "Tack fit") is used. Note that the three-dimensional vibrating table 1 may be fixed on the display table 23 by using fixing means such as a suction cup instead of the adhesive sheet 20.

  When the motor 3 is rotated in this state, the transmission mechanism by the crank 9 and the connection rod 10 and the transmission mechanism by the crank 11 and the connection rod 12 apply a force derived from the rotation of the motor 3 to the diaphragm 4.

Although the connection rods 10 and 12 project the shaft 14 and pull it back, as described above, the motion components include a horizontal component and a vertical component.
The horizontal component drives the diaphragm 4 in the lateral direction (left and right in FIG. 2). However, since the crank 9 and the crank 11 have the above-described phase difference, for example, one of the connection rods 10 and 11 protrudes and the other pulls back. Thus, the driving direction or driving force of the two is different. For this reason, the diaphragm 4 is not only shaken to the left and right (reciprocating vibration in the X-axis direction), but is also given vibration (vibration in the X and Y directions) around the axis (Z-axis) of the diaphragm 4.

  In this case, the diaphragm 4 slides on the cap 6, but since the cap 6 is made of hard plastic, the friction between the diaphragm 4 and the cap 6 is relatively small, and this friction causes vibration of the diaphragm 4 to occur. Will not be disturbed.

  Further, when the diaphragm 4 is displaced horizontally, the tension spring 7 is stretched, so that the tension spring 7 exerts a force on the diaphragm 4 in a direction to return the displacement. Therefore, the diaphragm 4 vibrates in the horizontal direction within a range allowed by the tension force of the tension spring 7.

The vertical component causes the diaphragm 4 to reciprocate up and down.
When the motor 3 is stopped, the lower surface 4a of the diaphragm 4 is in pressure contact with the cap 6 of the elastic column 5. However, when the diaphragm 4 is displaced upward when the motor 3 rotates, the lower surface 4a of the diaphragm 4 is moved to the elastic column. 5 away from the cap 6. Further, the rotating roller 16 attached to the connection rod 10 periodically pushes up the lower surface 4 a of the diaphragm 4, and causes the diaphragm 4 to be detached from the elastic column 5. Subsequently, when the vibration plate 4 is displaced downward, the lower surface 4a of the vibration plate 4 once separated from the elastic column 5 collides with the cap 6 of the elastic column 5 this time. That is, when the diaphragm 4 is displaced up and down by the connection rods 10 and 12, the separation of the elastic support 5 from the cap 6 and the collision are repeated intermittently.

  When the vibration plate 4 collides with the cap 6, the elastic column 5 is elastically deformed by the impact, so that the vibration plate 4 is flipped up by the repulsive force. However, since it is pulled toward the base plate 2 by the tension spring 7, there is a limit to the range in which the spring can be raised.

  Since the vibration plate 4 is not only supported by the elastic support 5 but is pulled toward the base plate 2 by the tension spring 7, it is bounced back by the elastic support 5 and pulled by the tension spring 7 in accordance with the collision. Irregularly vibrates up and down (vibrates in the Z-axis direction) on the cap 6 of the elastic column 5.

  The actual vibration of the vibration plate 4 is a combined three-dimensional vibration because these vibrations are combined. Even if such a complicated three-dimensional vibration is applied, the vase 21 does not move away from the adhesive sheet 20 and does not fall down, so that the observer (consumer) has an effect of preventing the adhesive sheet 20 from shaking or shocking due to an earthquake. You can feel it.

  When the diaphragm 4 vibrates, the bearing hole 10a of the connection rod 10 and the rotating shaft 9a are loosely fitted (the same applies to the connection rod 12). High and makes the above-mentioned complicated three-dimensional vibration good.

  In addition, as the diaphragm 4 vibrates, the friction sound with the cap 6 when the diaphragm 4 vibrates in the horizontal direction, the collision sound between the diaphragm 4 and the cap 6, the connection rods 10, 12 and the rotation shaft, etc. A squeak noise is generated.

  As described above, the three-dimensional shaking table 1 vibrates the diaphragm 4 with a simple configuration using the motor 3, the cranks 9 and 11, and the connection rods 10 and 12, so that it can be small and light and can be easily carried by an adult alone. be able to. For this reason, it becomes a thing suitable for uses, such as demonstrating the earthquake resistance performance of goods in stores, such as a home center.

  In addition, when the three-dimensional shaking table 1 is activated, a mechanical sound is generated as described above. Therefore, when used for a demonstration in a store, the sound can attract the attention of a passing consumer. Increase advertising effectiveness.

  When the 3D shaking table 1 is used for a demonstration at a store such as a home center, it is normal that there are general consumers in the vicinity when the 3D shaking table 1 is operated. At this time, if the internal structure (motor 3, cranks 9, 11, connection rods 10, 12, etc.) arranged between the diaphragm 4 and the base plate 2 can be seen, some people may want to touch the internal structure. might exist. However, since the curtain 19 prevents the internal structure from being seen from the outside, this can be prevented.

  The base plate 2 and the display stand 23 are transparent plates (for example, acrylic, polycarbonate, etc.), and a mirror 25 is installed under the display stand 23 as shown in FIG. In this way, it is possible to meet the consumer's desire to see the internal structure. In addition, the advertising effect is enhanced by showing intense movement of the internal structure.

Further, if the base plate 2 is opaque and the display stand 23 is a transparent plate, and a mirror 25 is installed under the display stand 23 as shown in FIG. 2, the space between the three-dimensional vibrating table 1 and the display stand 23 is provided. A general consumer can see the disposed adhesive sheet 20.
[Others]
The base plate 2 and the diaphragm 4 may be a plywood, a plastic plate, a metal plate or the like, and are not particularly limited.

  The transmission mechanism for transmitting the rotation of the motor 3 to the diaphragm to vibrate is not limited to the crank mechanism exemplified above, and the specific configuration is not limited as long as the object of the present invention can be achieved.

  In the embodiment, two transmission mechanisms using a crank mechanism are provided, but at least one transmission mechanism is sufficient. However, the three-dimensional displacement of the diaphragm can be made more complicated by providing a plurality of transmission mechanisms having different timings at which the drive direction with respect to the diaphragm 4 is switched as in the embodiment.

The elastic strut uses a coil spring in the embodiment, but may be a columnar rubber or the like.
In the embodiment, the head of the elastic support (cap 6) is made of hard plastic so that the friction between the diaphragm 4 and the cap 6 is reduced. Conversely, the head of the elastic support is made of rubber. For example, even if the friction is relatively large, the vibration mode of the diaphragm 4 can be complicated.

As a pulling means for biasing the base plate 2 and the diaphragm 4 closer together, a rubber string or the like can be used in addition to the coil spring of the embodiment.
The moving range (vibration amount) of the diaphragm 4 can be adjusted by appropriately adjusting the pulling force of the pulling means and the repulsive force of the elastic column.

As the shielding means, in addition to the curtain 19 shown in the embodiment, it can be deformed following the vibration of the diaphragm 4 in a strap shape, a blind shape, a window blind shape, etc. (does not inhibit the vibration of the diaphragm 4). Anything can be used.
[Internal structure layout example]
In the embodiment, the motor 3 is driven by a single motor 3, but as shown in FIG. 3, a plurality of motors 3A and 3B are used, each having a separate transmission mechanism (crank 9 and connection rod 10, crank 11 and The diaphragm 4 may be driven via the connection rod 12).

  In the embodiment, four elastic struts 5 and three tension means (tensile springs) 7 are provided. However, it is sufficient that at least one of these is provided, and the number of the embodiments is not limited. Further, these arrangement forms are not limited to the examples.

  The elastic struts 5 are not limited to one arrangement at each of the four corners of the base plate 2 (the diaphragm 4) as in the embodiment, but may be arranged in a biased manner. For example, as shown in FIG. 3, one on each side and one on each side on the horizontal center line may be arranged, or only on the right side (or left side) as shown in FIG. May be configured to be supported by the connection rods 10 and 12. Alternatively, as shown in FIG. 5, the number may be different on the left and right, such as two on the right side and one on the left side (or vice versa).

  The tension means (tensile spring) 7 can be arranged in various manners as illustrated in FIGS.

The front view (a) of the three-dimensional shaking table of an Example, the arrangement plan (b) of an internal structure, and a partial enlarged view (c). The use explanatory drawing of the three-dimensional shaking table of an Example. Explanatory drawing (1) of the example of arrangement | positioning of an internal structure. Explanatory drawing (2) of the example of arrangement | positioning of an internal structure. Explanatory drawing (3) of the example of arrangement | positioning of an internal structure.

Explanation of symbols

1 ... 3D shaking table for vibration display,
2 ... Base plate,
3 ... motor,
3a, 3b ... output shaft,
4 ... diaphragm,
4a ... lower surface,
5 ... elastic struts,
6 ... Cap,
9, 11 ... crank,
9a ... rotating shaft,
10, 12 ... Connection rod,
10a ... bearing hole,
13 ... Bracket,
14 ... axis,
15 ... support member,
16 ... Rotating roller,
18 ... control unit,
19 ... curtain,
20 ... adhesive sheet,
21 ... Vase,
23 ... Exhibition stand,
25 ... Mirror.

Claims (9)

A base plate,
A motor attached to the base plate;
A diaphragm disposed facing the base plate with the motor in between,
A transmission mechanism for reciprocating the diaphragm by converting the rotation of the motor into a reciprocating motion;
A pulling means connected to the base plate and the diaphragm and biasing both together;
When the motor is stopped, the lower surface of the diaphragm comes into pressure contact with the head, and when the motor rotates, the diaphragm that is reciprocally displaced by the transmission mechanism intermittently collides with the head at the height. A three-dimensional shaking table for vibration display, characterized by comprising an upright elastic column. The three-dimensional shaking table for vibration display according to claim 1,
A three-dimensional vibration table for vibration display, comprising a plurality of the transmission mechanisms having different timings at which the driving direction with respect to the diaphragm is switched. In the three-dimensional shaking table for vibration display according to claim 1 or 2,
The transmission mechanism is
A crank attached to the output shaft of the motor;
A three-dimensional shaking table for vibration display, comprising a connection rod having one end connected to the rotating shaft of the crank and the other end connected to the diaphragm. The three-dimensional shaking table for vibration display according to claim 3,
The three-dimensional vibration for vibration display, wherein the rotation shaft and the connection rod are loosely fitted so that the connection rod can be relatively displaced in addition to the relative rotation around the rotation shaft. Stand. In the three-dimensional shaking table for vibration display according to claim 3 or 4,
A three-dimensional vibrating table for vibration display, comprising: a rotating roller attached to the connection rod via a support member and pushing up the lower surface of the diaphragm when the connection rod drives the diaphragm. The three-dimensional shaking table for vibration display according to any one of claims 1 to 5,
A three-dimensional vibration table for vibration display comprising shielding means for making an internal structure disposed between the vibration plate and the base plate invisible from the outside. In the three-dimensional shaking table for vibration displays according to any one of claims 1 to 6,
A vibration display three-dimensional shaking table comprising sound generating means for generating a sound when the motor rotates. In the three-dimensional shaking table for vibration displays according to any one of claims 1 to 7,
A three-dimensional shaking table for vibration display, characterized in that the surface of the head of the elastic column is smooth. In the three-dimensional shaking table for vibration displays according to any one of claims 1 to 8,
A three-dimensional shaking table for vibration display, wherein the base plate is transparent.

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