JP4612024B2 - Rotating display device - Google Patents

Description

  The present invention relates to a rotation mechanism in a rotary display device.

As a rotary display device, a spherical display body is placed in a spherical transparent container in a form immersed in a liquid filled in the container, and the display body is formed by an electromagnet that acts on the geomagnetism provided inside the display body. A rotation display device that rotates a container with respect to a container is known (for example, Patent Document 1).
Special table 2003-514251 gazette

According to the rotary display device described in Patent Document 1, since the geomagnetism is used for the rotation of the display body, the rotational driving force of the display body changes depending on the state of the geomagnetism at each location. It has been difficult to stably rotate the display body.
Therefore, the present invention has an object to stably rotate a display body with respect to a container in a rotary display device in which the display body is placed in a transparent container in a form immersed in a liquid filled in the container. And

  A rotating display device in which a spherical display body with a pattern is suspended in a liquid filled in the container in a hollow spherical container, and the display body is disposed inside the display body. A suction path connected to a suction port opened on the surface; a discharge path disposed inside the display body and connected to a discharge port opened on the surface of the display body; and the suction path from the suction port. A pump disposed inside the display body for sucking liquid through the discharge port and discharging the sucked liquid from the discharge port through the discharge path; and supplying operating power of the pump. A power supply device disposed inside, and the suction port is formed to face a horizontal direction, and the discharge port is a horizontal direction having a direction component in a circumferential direction of the display body It is formed to face.

According to such a rotary display device, the display body is rotated by a reaction force generated by discharging the liquid around the display body from the discharge port by the pump provided inside the display body. Therefore, the display body can be rotated stably without depending on geomagnetism or the like.
Here, the rotation mechanism of such a rotary display device is such that the container has a hollow cylindrical shape, the display body has a cylindrical shape, and the display body is immersed in a liquid filled in the container. The same can be applied to the case of arranging in the same manner.
Moreover, the power supply device in such a rotary display device may be a solar cell that converts light transmitted from the outside into the display body into electric power.

  As described above, according to the present invention, in a rotary display device in which a display body is disposed in a transparent container in a form immersed in a liquid filled in the container, the display body is stably attached to the container. Can rotate.

Embodiments of the present invention will be described below.
FIG. 1 shows the structure of a rotary display device according to this embodiment.
As shown in FIG. 1a, the rotary display device 1 is used in a state where it is placed on a pedestal 2, as shown in FIG. 1b. A transparent transparent body 11 filled with a container 12 is filled in a hollow sphere-shaped container 12 as shown in FIG. 1c, as shown in FIG. 1d along the section line AA in FIG. 1a. In a form immersed in a liquid, it is arranged concentrically with the container 12.

  Here, the outer diameter of the display body 11 is smaller than the inner diameter of the container 12, and a space seen as a liquid occurs between the display body 11 and the container 12. Further, the container 12 is filled with two liquids 13 and 14 having different specific gravities so that the display body 11 is located concentrically with the container 12 by its buoyancy.

Further, as shown in FIG. 1d, the display body 11 has a weight 111 for erecting the posture of the display body 11, and a rotation for rotating the display body 11 with respect to the container 12 with a vertical axis as a rotation axis. The mechanism 112 is incorporated.
Further, the optical refractive index of the container 12 and the optical refractive indexes of the liquids 13 and 14 filling the container 12 are such that the image of the display body 11 is obtained when the rotary display device 1 is observed from the outside, as shown in FIG. , It is determined to be enlarged and visually recognized so as to overlap the entire container 12.
Thus, to the observer, the entire container 12 is the display body 11 as shown in FIG. 2c, and the display body 11 has a vertical axis as shown in the cross-sectional view taken along the cutting line BB of FIG. As shown in FIG. 2c, the entire container 12 is visually recognized as it rotates with respect to the container 12 as a rotation axis.

Next, the rotation mechanism 112 incorporated in the display body 11 will be described.
3A shows a schematic structure of the rotating mechanism 112 viewed from the horizontal direction, and FIG. 3B shows a schematic structure of the rotating mechanism 112 viewed from the vertical direction.
As illustrated, the rotation mechanism 112 includes a solar battery 1121 (solar cell 1121), a pump 1122, a suction path 1123, and a discharge path 1124.
Here, the display body 11 is patterned with a translucent material and paint so that light from external illumination can pass through the container 12 and the display body 11 and reach the solar cell 1121. Then, the solar cell 1121 converts the light that arrives in this way into electric power and supplies it to the pump 1122.
The pump 1122 sucks the liquid 13 filled in the container 12 through the suction path 1123 from the suction port which is a small hole provided so as not to be conspicuous on the outer wall of the display body 11, It discharges from the discharge port which is a small hole provided so that it may not stand out on the outer wall of the display body 11 via the discharge path 1124.

  Here, the suction port is provided to suck the liquid 13 in the horizontal direction, and the discharge port is provided to discharge the liquid 13 in the horizontal direction. Further, the discharge port is provided so as to face slightly in the circumferential direction of the display body 11, and the display body 11 is vertically oriented as shown by an arrow in FIG. 3b due to the reaction force of the liquid 13 discharged from the discharge port. The container 12 rotates around the central axis as a rotation axis.

Here, as the pump 1122 used for such a rotation mechanism 112, for example, a pump 1122 as shown in FIG. 3c1 can be used.
The pump 1122 includes a check valve 32, a pump chamber 31, and a pump chamber 31 provided in the pump chamber 31, a flow path connected to the suction path 1123 of the pump chamber 31, and a flow path connected to the discharge path 1124. 3c1 and 3c, the piezoelectric element 33 whose volume changes and the oscillation circuit 34 that generates an oscillation signal for driving the piezoelectric element 33 from the electric power supplied from the solar cell 1121 are provided.

According to such a pump 1122, as the volume of the pump chamber 31 is increased by the piezoelectric element 33, the liquid 13 is sucked from the suction path 1123 and the volume of the pump chamber 31 is decreased by the piezoelectric element 33. The liquid 13 is discharged to the discharge path 1124 with the conversion.
The rotary display device 1 according to the present embodiment has been described above.
As described above, according to the present embodiment, the display body 11 can be rotated by the reaction force generated by discharging the liquid 13 from the discharge port by the pump 1122 provided inside the display body 11. Therefore, the display body 11 can be stably rotated without depending on geomagnetism or the like.
By the way, a plurality of suction paths 1123 and discharge paths 1124 in the rotation mechanism 112 of the display body 11 may be provided, respectively, and as shown in FIG. You may make it do. By doing so, the difference in force between the suction and discharge of the liquid 13 acts as the rotational force of the display body 11, so that the display body 11 can be rotated slowly. Conversely, as shown in FIG. 4b, the circumferential direction of the discharge port and the suction port may be arranged in opposite directions. By doing so, both the suction and discharge forces of the liquid 13 act as the rotational force of the display body 11, so that the display body 11 can be rotated more smoothly and efficiently using the force of the pump 1122. Can do. FIG. 4B shows an example in which the discharge path 1124 and the suction path 1123 are arranged so as to overlap each other in the vertical direction.

  Further, in the above embodiment, in order to improve the decorative effect, as shown in FIG. 4a, a non-transparent decorative body 15 (for example, floating in the liquid 13 in a form separated from the liquid 13 without being diffused). It is also preferable to place a white liquid or semi-liquid decorative body 15) simulating a cloud in the liquid 13.

Further, as the pump 1122 in the rotation mechanism 112 of the display body 11, a pump 1122 as shown in FIG. 4c1 can be used.
In this pump 1122, the pump chamber 31, the check valve 32 provided in each of the flow path connected to the suction path 1123 of the pump chamber 31 and the flow path connected to the discharge path 1124, and the pump chamber 31 are shown in FIG. Thus, the electromagnet 37 is intermittently driven using the electric power supplied from the magnet body 35 that changes its volume, the spring 36 that biases the magnet body 35 upward, the electromagnet 37, and the solar cell 1121 (electromagnet 37). And a drive circuit 38 for generating a drive signal (which repeatedly turns on / off the drive power supply to the drive).

  According to such a pump 1122, when the electromagnet 37 is driven, the magnet body 35 moves downward by the magnetic force of the electromagnet 37 as shown in FIG. 4c2, and the volume of the pump chamber 31 is increased to increase the suction path 1123. Then, the liquid 13 is sucked into the pump chamber 31. On the other hand, when the driving of the electromagnet 37 is stopped, as shown in FIG. 4 c 1, the magnet body 35 is moved upward by the force of the spring 36, the volume of the pump chamber 31 is reduced, and the discharge path 1124 from the pump chamber 31. The liquid 13 is discharged.

However, the pump 1122 may be configured to move the magnet body 35 up and down by removing the spring 36 and alternately switching the polarity of the electromagnet 37 by the drive circuit 38.
Alternatively, as shown in FIG. 4 d 1, the specific gravity is set by providing the magnet body 35 with a float so that the magnet body 35 floats with respect to the liquid by buoyancy, and the check valve 351 is provided on the magnet body. It's also good.

  In the pump 1122 as shown in FIG. 4d1, when the electromagnet 37 is driven, the magnet body 35 moves downward with the check valve 351 closed by the magnetic force of the electromagnet 37 as shown in FIG. 31 liquids are discharged to the discharge path 1124. On the other hand, when the driving of the electromagnet 37 is stopped, as shown in FIG. 4 d 1, the magnet body 35 moves upward with the check valve 351 opened by buoyancy, and along with this, the pump chamber 31 enters the suction passage 1123. Liquid flows in.

  Now, as for the rotary display device 1 as described above, the container 12 and the display body 11 are formed in a cylindrical shape so that the appearance is shown in FIG. 4e1 and the cross section taken along the plane perpendicular to FIG. 4e2. It may be. Also in this case, the display body 11 is rotated around the vertical axis by the internal rotation mechanism 112.

It is a figure which shows the structure of the rotation display apparatus of this invention. It is a figure which shows the optical refractive index of the rotation display apparatus of this invention. It is a figure which shows the structure of the rotation mechanism of the rotation display apparatus of this invention. It is a figure which shows the other structural example of the rotation display apparatus of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Rotary display apparatus, 2 ... Base, 11 ... Display body, 12 ... Container, 13 ... Liquid, 15 ... Decoration body, 31 ... Pump chamber, 32 ... Check valve, 33 ... Piezoelectric element, 34 ... Oscillation circuit, 35 DESCRIPTION OF SYMBOLS ... Magnet body, 36 ... Spring, 37 ... Electromagnet, 38 ... Drive circuit, 111 ... Weight, 112 ... Rotating mechanism, 1121 ... Solar cell, 1122 ... Pump, 1123 ... Suction path, 1124 ... Discharge path.

Claims (3)

A rotary display device in which a spherical display body with a pattern is suspended in a liquid filled in the container in a hollow spherical container,
A suction path that is disposed inside the display body and that is connected to a suction port opened on a surface of the display body;
A discharge path disposed inside the display body and connected to a discharge port opened on the surface of the display body;
A pump disposed inside the display body for sucking liquid from the suction port via the suction path and discharging the sucked liquid from the discharge port via the discharge path;
A power supply device disposed inside the display body for supplying operating power of the pump;
The suction port is formed to face a horizontal direction,
The rotary display device according to claim 1, wherein the discharge port is formed so as to face a horizontal direction and a direction having a direction component in a circumferential direction of the display body.
A rotary display device in which a cylindrical display body with a pattern is placed in a hollow cylindrical container in a form immersed in a liquid filled in the container,
A suction path that is disposed inside the display body and that is connected to a suction port opened on a surface of the display body;
A discharge path disposed inside the display body and connected to a discharge port opened on the surface of the display body;
A pump disposed inside the display body for sucking liquid from the suction port via the suction path and discharging the sucked liquid from the discharge port via the discharge path;
A power supply device disposed inside the display body for supplying operating power of the pump;
The suction port is formed to face a horizontal direction,
The rotary display device according to claim 1, wherein the discharge port is formed so as to face a horizontal direction and a direction having a direction component in a circumferential direction of the display body.
The rotary display device according to claim 1 or 2,
The rotary display device according to claim 1, wherein the power supply device is a solar cell that converts light transmitted from the outside into the display body into electric power.