JPS6343491Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a display device equipped with a display unit that can alternately display two types of display contents using a reversing display that is reversed by the action of a magnet.

A display unit is already known in which an electromagnet is opposed to a magnet attached to a reversible display body that can be rotated between two positions, and the reversible display body can be reversed by switching the polarity of the electromagnet to select one of two types of display.
In addition, a plurality of display units can be combined to form one block, and the display contents can be switched by simultaneously inverting each inverting display, or a desired pattern can be made to appear by inverting only the inverting display of an arbitrary display unit, so that this type of display is attracting attention as a new type of display device. However, a complicated memory device and switch mechanism are required to select the display unit to be inverted in response to a change in the display contents and to invert the polarity of the electromagnet of the selected display unit.

The purpose of this invention is to provide a display device with a simple structure and high reliability, which can reverse the reverse display of a display unit according to a predetermined program.

Next, an embodiment of this invention will be described with reference to the drawings. At the center of the substrate, indicated by reference numeral 1 in FIG. 1, a reversing display body (hereinafter referred to as "flap") 2 is attached via a hinge 4, centered on an axis parallel to the surface of the substrate. This flap 2
As shown in detail in FIG. 2, it consists of a pair of mutually overlapping plates 2a and 2a' made of magnetically non-permeable material such as plastic, and a fixed plate sandwiched between them. It consists of a shaped magnet, for example a rubber magnet 2b. rubber magnet 2
b is a rectangular thing made of a normal magnetic material or a rubber magnet, and has a length that reaches from the end on the rotation center side of the flap 2 to the free end, and one side is an S pole and the other side is a rectangular thing. It is magnetized to be the north pole.

Since the flap 2 is pivotally mounted at the center of the substrate 1, when the surface of the plate 2a' is in close contact with the substrate 1, as shown in FIG. 1-1) and the surface of the plate 2a (referred to as display surface 2-1) are exposed. In addition, in the state shown in FIG. 3 in which the flap 2 is rotated approximately 180 degrees counterclockwise in FIG. (referred to as surface 2-2) is exposed. Display surface 1-
1 and 2-1 have the first display, and display surface 1
-2 and 2-2 are respectively formed with second displays. For ease of explanation, display surface 1-1
and 2-2 are colored blue, and display surfaces 1-2 and 2-2 are colored red. Therefore, in the state shown in FIG. 2, blue is displayed, and in the state shown in FIG. 3, red is displayed.

Further, a drive mechanism is provided behind the base plate 1 in order to rotate the flap 2 in any direction. This drive mechanism has a cylindrical drive magnet 3 that rotates continuously or intermittently about its axis. This driving magnet 3 has a length approximately equal to the width of the substrate 1, and its peripheral surface is
A plurality of regions are formed whose minimum width is the width of the rubber magnet 2b, and each region is magnetized to a north pole or south pole in a predetermined arrangement.

FIG. 2 shows a state in which the south pole region of the drive magnet 3 is located at a position corresponding to the rubber magnet 2b. In this state, since the north pole side of the rubber magnet 2b is in contact with the substrate 1, a magnetic attraction force acts between it and the south pole of the drive magnet 3, and the flap 2 is held in this position. Next, drive magnet 3
rotates and when the N pole region reaches the position corresponding to the rubber magnet 2b, the flap 2 rotates counterclockwise due to the repulsive force acting between it and the N pole of the rubber magnet 2b. After passing through the center of the rotation range, the plate 2a is moved toward the substrate 1 by the attractive force between the S pole of the rubber magnet 2b and the N pole of the drive magnet 3.
It rotates until it comes into close contact and is held in this position.
This state is shown in FIG. In this state, display surfaces 1-1 and 2-1 that have been displayed up to now are hidden, and display surfaces 1-2 and 2-2 are newly displayed in their place.

The drive magnet 3 rotates further, and the rubber magnet 2
When the next S pole region arrives at the position corresponding to b, the flap 2 is rotated counterclockwise in FIG. The state shown in Fig. 2 is reached again. That is, each time the drive magnet 3 rotates and a region of a different polarity is reached, the flap 2 is reversed, and the display surface changes alternately from blue to red and from red to blue.

In this case, if the width of the magnetic pole of the drive magnet 3 is wide, the display will continue for a long time.
Various display time differences can be created by magnetizing according to a timing program, and changes can be made by demagnetizing and re-magnetizing.

The display does not malfunction due to wind or external vibrations, and operates stably.The horizontal line in the example description can be replaced with a vertical line regardless of whether the entire display surface is facing upward or downward. This enables unprecedented reliable operation, even when the device is turned sideways.

However, in the case of this embodiment, the cylindrical drive magnet 3 had to be rotated relatively quickly or moved rapidly intermittently in order to flick off the rubber magnet 2b of the flap 2. The following embodiment will explain why it would otherwise not work.

In the embodiment shown in FIG. 4, the thickness of the rubber magnet 2b installed in the flap 2 is increased, and at the same time, the width of the magnet is increased from the side of the rotation center of the flap 2 to the left and right center of the flap 2. The difference from the embodiment shown in FIG. 1 is that the length is shortened. Therefore, the structure of the flap 2 is box-shaped, and the support structure of the flap is also supported by bearings 4 provided protruding above and below the board.
Shaft portions 4 provided above and below the rotation center side of the flap at a.
It has a structure that incorporates b. On the other hand, the drive magnet 3 also has a magnetized region with a width half as large as that of the embodiment shown in FIG. .

5 and 6 show that the flap 2 of this embodiment is
The line of action of the magnetic force between the magnetic pole of the rubber magnet 2b attached to the flap 2 and the magnetic pole of the magnetized region of the drive magnet 3 at an instantaneous position separated from the substrate surface by about 30 degrees is explained. Now, if the rubber magnet 2b reaches the edge of the rotating side of the flap 2 as in the embodiment shown in FIG. The center point of the virtual unit N pole of the driving magnet 3 which exerts a magnetic force on this point P is designated as n, and the virtual line of action connecting both points is shown by a dashed line. At this time, the repulsive force that point P receives is f=m1m2/ ^r2 (m1 and m2 represent the strength of the point magnetic poles of each magnet, and r represents the distance between the point magnetic poles). However, as shown in Figure 6, at point P,
In addition to the lines of action from the opposing N poles, two attractive forces passing through the two lines of action from the virtual S poles, shown by two-dot chain lines, also act. If the resultant force of these two attraction forces becomes larger than the above-mentioned repulsive force and the cylinder of the drive magnet is rotated slowly, the flap 2 will stop after rotating 30° to 40°, but if the cylinder is rotated quickly. , a large driving force acts at the beginning of the drive, and the inertia is also involved, causing the flap to reverse.

So, what should you do to prevent malfunctions when moving slowly?
As shown in Figures 5 and 6, this problem can be solved by increasing the thickness of the rubber magnet to increase the strength of the magnetic pole and by not attaching the rubber magnet to the rotating side of the flap 2. Regarding the line of action of the magnetic force acting on each unit magnetic pole in Figure 6, the closer to the center of rotation of flap 2 the ratio of the length of the line connecting north poles to the length of the line connecting south pole and north pole is 1. I'm getting further away from it. Therefore, due to the relationship that is inversely proportional to the square of the distance between the mutual magnetic poles, the magnetic force acting on the unit magnetic pole of the rubber magnet near the center of rotation of the flap is mostly repulsive force, and the In addition to repulsive force, the magnetic force that acts on the unit magnetic pole of a magnet includes a considerable amount of attractive force. However, since the repulsive force is greater than the resultant force of the attractive force, in this embodiment, the flap operates even if the drive magnet is moved slowly. However, even in this embodiment, if the drive magnet is moved extremely slowly, the boundary between the N and S poles of the drive magnet 3 will move slightly further away from the state where the center of the magnetic pole of the rubber magnet 2b of the flap faces the center of the magnetic pole. By moving the drive magnet step by step, the flap begins to open until it reaches the position shown in Figure 6. When the drive magnet 3 is moved a little further and it comes to the position shown in Figure 6, the flap accelerates further and finally finishes reversing. Thus, there is a tendency for the flap reversal speed to become somewhat slower. Therefore, as an embodiment in which the flap can be reversed at high speed no matter how slowly the drive magnet 3 is moved, the seventh
The items shown in Figures 8 and 9 will be explained. Looking at the flap 2 indicated by the two-dot chain line in FIG.
It will be box-shaped and thicker than the flap shown in the figure, but
As shown by the solid line in this figure, this example:
A strong permanent magnet 2b, such as an anisotropic strontium ferrite magnet or a rare earth magnet, is placed inside a half-round, half-width cylindrical flap, and a magnet shaft is placed at a distance r from the center line of rotation of the flap. installed in the configuration. Unlike rubber magnets, such a strong magnet has a strong magnetic force even if the magnetic pole area is small, and therefore the vertical width of one division of the magnetized area of the drive magnet 3 can be made narrower. The amount of memory per unit area can be increased. Since this embodiment uses a flat drive magnet 3, unless the unit drive magnet 3 is formed in a rectangular shape with the same vertical length as the vertical length l of the substrate 1, this embodiment will be arranged in a matrix. In this case, another program collides with a flat drive magnet with a tight magnetic pole arrangement so as to exert an acting force on the permanent magnet in the flap immediately above it.
They overlap. In reality, these individual drive magnets are made as a whole, so
It automatically becomes the dimension l. However, by doing this, it becomes possible to display a mosaic-like display in which the present embodiment is arranged as a unit display device by extending a large number of them vertically and horizontally in parallel, by simply moving the integrated flat drive magnet up and down. You can convert the display with
The structure is simpler than that of rotating a row of cylindrical drive magnets at the same time. As mentioned above, this embodiment has the advantage that even if the drive magnet has a length l, which is about 1/3 shorter than the circumference of the cylindrical drive magnet, the magnetized regions can be arranged closely around it. It was constructed using. The drive magnet 3 of this embodiment is moved very slowly until the drive magnet 3 is fixed at the position shown in FIG. At the position where the boundary between the magnetized N and S magnetic poles is reached, the balance of forces acting on the flap is lost and the flap rapidly reverses. The force acting immediately before this reversal has a point of action at the N pole of the permanent magnet, between the repulsive force drawn on the extension line of the N-N line of action in the figure and the attractive force drawn on the S-N line of action. These are each magnetic force and the static friction force of the bearing portion that receives the component of the magnetic force in the direction of the flap's rotational axis. If the frictional force is 0, if you move even a little from the t=0 position in the figure, the balance between the repulsive force and the attractive force will be lost and the rotation will occur.As a result of experiments, we found that the frictional force Even though it was made so small that it could be ignored, it was found that the force balance would not be lost unless t was about 17% of the distance between the N and S magnetic poles of the drive magnet 3.
This is because the magnetic field from the strong permanent magnet 2b attached to the flap has a stronger influence on the S pole of the drive magnet 3, and in addition to the force relationship that is inversely proportional to the square of the distance between the mutual magnetic poles, the S pole of the drive magnet 3
The +α force that occurs due to the stronger oxidation of the magnet material in the magnetized region with the pole increases the S-N from the N-N.
Even though the distance is greater, there is still enough attractive force to stop the flap from reversing due to the repulsive force.

At the moment when the balance of this force is lost, the static frictional force acting on the bearing section decreases in place of the sliding frictional force, and when the flap rotates to the position shown by the two-dot chain line in FIG. The N pole of permanent magnet 2b in the figure also rises to the (N) position, and S-(N)
The +α force that was working during that time has almost disappeared,
The repulsive force acting between N-(N) becomes larger,
Rotate the flap more and more rapidly. At this time, in addition to the above-mentioned forces, the inertial force of the flap,
There are centrifugal forces, air resistance, etc., and this centrifugal force is used to rotate the flap around the edge of the hole that is away from the base of the bearing, thereby eliminating contact between the board surface and the flap. In this way, once the force reaches a position where the balance is lost, the flap is instantly reversed and stabilized with the other side of the flap facing forward, without having to move the drive magnet. do. Therefore, in this embodiment, even if the drive magnet is not moved intermittently,
It has the advantage of being able to freely express patterns and animations, whether fast or slow. The stabilizing force after reversal is due to the magnetic force including the above-mentioned +α force caused by the S pole of the permanent magnet 2b acting with the N pole of the drive magnet, and even when applied as an outdoor exposed display, it is stable against wind pressure. It also maintains stability.

Next, an embodiment will be described in which the principles of the present invention are applied to display two or more kinds of displays by arranging them in a mosaic pattern. Figure 10 to 1
In the multi-panel conversion display device having the configuration shown in FIG. 2, a plastic substrate 1 is attached to the front side of an outer frame 8 using a holding angle 7 or the like. On the left side of this board 1 are written the words "next", and on the right side are written the words "line". And between both letters, 12 columns vertically, 45 columns horizontally,
A total of 540 flaps 2 are rotatably supported. This flap 2 has a rubber magnet 2b as explained in FIG.
It is buried so that it is sandwiched between a′. On the other hand, twelve rollers 9 made of iron pipes whose generatrices are close to the back surface of the substrate 1 where the rubber magnets 2b are located are horizontally supported by an internal frame 8' and bearing parts 10 so as to be freely rotatable. Further, on the rear side, 1112 drive rollers made of iron pipes are horizontally and freely rotatably supported. Belts 3'' of rubber magnet sheets are stretched between the rollers located in front and behind each other, and a crown gear 12 is attached to the right end of each roller 11 on the rear side. It is configured to mesh with a flat gear 15 attached to a vertical shaft 14 rotated by a pulse motor 13.The pulse motor 13 used in this embodiment carries a square wave current of 550 mA (at 24 V). It has the ability to rapidly rotate the motor shaft 13' by 45 degrees with a single pulse that lasts 10 ms.
If 24 pulses are applied, the motor shaft 13' has rotated three times. This rotation is transmitted from a vertical shaft 14 connected to a motor shaft 13' by a joint part 16 and a pin 17 to a flat gear 15 and a crown gear 12, and is transmitted to each rear roller 11.
will rotate twice (this is because the gear ratio of the spur gear 15 and crown gear 12 is 2:3). The rubber magnet belt 3'' is configured to rotate around once in two rotations (the length of the belt is twice the circumference of the roller). Fourth
Like the drive magnet 3 shown in the figure, each flap 2 is independently magnetized at its rear position, and the flap 2 can be reversed up to 24 times while the rubber magnet belt 3'' makes one revolution. The magnetic poles are arranged around one circumference of the belt as shown in FIG. This is because the magnetic poles of the rubber magnet belt 3'' facing the buried rubber magnet 2b and the magnetic poles of each flap are stably held in opposite positions. In this way, the fact that each flap 2 as each segment of the mosaic can be held in an independent and stable position means that images, characters, etc. can be expressed as a whole of the mosaic. For example, if you want to erase the □ after the expression □ in Figure 10, the magnetic pole of the rubber magnet belt 3'' behind the board in the lower right corner will remain the same even after the belt has rapidly moved by 1/24 of one circumference. After the belt has moved by 1/24, the magnetic pole of the rubber magnet belt 3" behind the board on the lower right corner should be magnetized so that it becomes a pole. All you have to do is magnetize it to the pole. In this way, the rubber magnet belt 3'' is used as a memory element that independently determines the position of each flap 2 to fall within 24 steps, so when using remote control as shown in the station display, the number of pulses can be read at hand. It is possible to select and display one of the 24 types by controlling the display. Reference numerals 4a and 4b in the figure are bearing parts provided on the board surface to support the flap freely in rotation. The protrusions on the top and bottom corners of one side of the plastic plate are fitted.

Although this example has a storage capacity of only 24 types, it is possible to display even more types by lengthening the length of the belt.When used for advertising, it can be combined with an automatic pulse generator that produces 4 to 10 pulses per second. It can be applied to moving patterns in all directions like neon signs, animation movies, etc. (In this case, a general electric motor with a speed reducer can be used instead of a pulse motor.)

Further, by applying the present invention, it is also possible to automatically display the time of a digital clock and the month, date, and day of the week. This will be explained with reference to FIGS. 13 and 14.

A plastic substrate 1 is attached to an outer frame 8. On the front side of this board 1, there are 28 display flaps as segments as shown in Fig. 1 at the first digit of the minute from 0 to 9, 28 at the second digit of the minute, and 28 display flaps at the second digit of the minute. 28 in the first digit position of
21 pieces are rotatably supported at the positions of the two digits of the hour. Behind this substrate 1, there are three blocks of cylindrical drive magnets 3a, 3b, and 3c arranged horizontally in sets of seven in parallel, one above the other. The first block 3a is
The second block 3b is placed behind the first digit of the minute, the third block 3c is placed behind the hour. A crown gear 12 having 24 teeth is fixed to one end of each drive magnet 3a, 3b, 3c. on the other hand,
The pulse motor 13 rotates 90 degrees per step in response to the signal pulse current from the master clock, and the gears 18 and 19 with a gear ratio of 24:25 rotate the motor in one step.
A first digit drive vertical shaft 20 that rotates 86.4 degrees and 0.24 degrees is provided, and four pinion gears 15 with 10 teeth are attached to this shaft 20, and each crown on the right end of each drive magnet of the first digit block 3a is mounted on this shaft 20. Gear 12 is engaged. Further, at the end opposite to the lowermost drive magnet 3a' of the first block, a toothed crown gear 21 is fixed, which has only one of the 24 teeth left and the remaining 23 teeth have been scraped off. 1
The portion provided between the drive magnets of the block 3a and the second block 3b is arranged to mesh with a 10-tooth pinion gear 15 attached to the second digit drive vertical shaft 22. This vertical shaft also has three more 10-tooth pinion gears 15, and each of the four pinions meshes with the crown gear 12 of the second block 3b. In addition, a shaft 23 extends on the opposite side of the lowermost drive magnet 3b' of the second block, and at its end, only two of the 24 teeth, one tooth separated by 180 degrees, are left and the rest is scraped off. A toothed crown gear 24 is attached. The toothed crown gear 24 is arranged to mesh with the lower pinion gear 15 in four ten-tooth pinion gears attached to the hour drive vertical shaft 25. And each pinion gear 15 has a third block 3c.
The respective crown gears 12 are engaged with each other.

Since this embodiment has such a configuration, if a pulse current flows through the pulse motor every minute, the minute first digit drive vertical shaft 20 rotates by 0.24 revolutions,
Crown gear 12 meshing with toothed pinion 15
Since there are 24 teeth, each drive magnet 3a of the first block rotates by 0.1 rotation.

Each circumferential surface of each driving magnet 3a of the first block is divided into 10 equal parts, and each part is rotatably supported on the board 1, and the first digit indicates the embedded rubber magnet of each flap from 0 to 9. Since it is magnetized to stabilize it in the reclined position, the number on the minute display changes every minute. Then, only when changing from 9 to 0, the toothed crown gear 21 of the lowest driving magnet 3a' engages with the teeth of the 10-pinion gear 15 of the second minute digit drive vertical shaft 22, and then the 10-pinion gear 15 and the coaxial Each drive magnet 3b is rotated by 1/12 rotation from the crown gear 12 of the second block that meshes with the other three 10-blade pinions attached. Each circumferential surface of each drive magnet 3b of the second block is divided into 12 equal parts, and in one rotation of 12 steps, the portion in front of the second block is displayed in the second digit. It is magnetized so as to be stabilized at the tilted position where the numbers 0 to 5 are displayed twice in the numerical order of 5. Therefore, the first digit of the minute is 9.
At the same time as the minute changes from 0 to 0 (every 10), the display of the second digit of the minute changes. Next, when the second digit of the minute display changes from 5 to 0, the drive magnet 3 at the bottom of the second block
The toothed crown gear 24 attached to the end of the extended shaft of b'
One tooth of the four teeth attached to the time drive vertical shaft 25
Lower pinion gear 1 of the 10-tooth pinion gear
5, the time drive vertical shaft 25 is rotated by 0.2 rotation, and the crown gear 12 of the third block, which is engaged with each pinion, is rotated by 1/12 rotation.
Therefore, the circumferential surface of each cylindrical permanent magnet in the third block will also move by 1/12, and the numbers on each flap will change when it is in front of it. It is arranged on the circumferential surface of each drive magnet 3c of the third block from 0 to 11.
This is because it is magnetized and memorized in 12 different magnetic pole arrangements.

Unlike the conventional method of flickering a light bulb using electric wiring, this embodiment can display the light even on a wall exposed to direct sunlight, and there is no need to replace the light bulb due to its lifespan. It can also be made thinner than mechanical digital display clocks, making it easy to read when hung on a wall.

Next, an embodiment of the present invention in which the number of display conversion colors is increased will be described.

In the embodiment of the mosaic arrangement described above, there were only two types of display color changes, but in this embodiment, four types of changes can be made. One of the segments will be explained with reference to FIGS. 15 to 17. The board 1 of this embodiment has a screen vertically divided into four parts, an edge 1G and a fluorescent red 1 from left to right.
Printed paper is pasted in the order of LR, fluorescent green 1LG, and red 1R. In addition, the flap is 2 per segment.
The set is rotatably supported on the base plate 1.
Of these two flaps 2', 2'', the left flap 2' is centered on the boundary line between the green paper 1G and the fluorescent red paper 1LR of the substrate 1, and the right flap 2'' is a fluorescent green flap. It is lying on the board with the center of rotation on the boundary line between paper 1LG and red paper 1R. Now, when these two flaps are both tilted to the left, the fluorescent red printed on the surface of the left flap 2' and the fluorescent red LR second from the left on the board as shown in Figure 16D. , the left half of the segment becomes fluorescent red LR. Also, the red R printed on the surface of the right flap 2'' and the right half of the printed red paper 1R element pasted on the right end of the board will be red R. At this time, the back side of the left flap 2' will be green G, Fluorescent green LG is printed on the back of the 2″. Next, if each flap falls to the right, the back surfaces of both flaps 2' and 2'' will face the front side as shown in Figure 16C, and the left half of the element will be green G and the right half will be fluorescent green LG. It is expressed by combining it with the colored plane pasted on the substrate 1 as shown in the figure.As shown, although there is a significant difference in brightness between the left and right sides per segment, it is difficult to see whether each flap falls to the right or to the left. Therefore, as a gathering surface, it appears to the eye as a medium bright green or a medium bright red.Next, if the left and right flaps 2', 2'' are toppled to the left and right, as shown in Fig. 16B. The left half of the segment is fluorescent red LR and the right half is fluorescent green LG, as shown in
is displayed, but when viewed as a collective surface (when viewed from a distance), red and green are combined, giving the impression of bright yellow to the eye. Also, if the board falls to the center of the board so that the left and right flaps close, the first
As shown in FIG. 6A, the left half of the segment is displayed in green G, and the right half is displayed in red R. In this case, unlike the above-mentioned yellow expression that was displayed only with fluorescent ink without using fluorescent printing ink, when viewed as a collective surface, it appears to the eye as a relatively dark ocher color. . This difference in brightness between yellow and ocher, and further differences in hue and saturation, create a clear difference between yellow and gray with a bluish-purple tinge. There is also a possibility that changes could be made, such as making it green or adding a little black ink.

In this example, there are four types of expression: red and green, yellow and ocher, but by replacing the hue relationship of orange and blue-green with the relationship of red and green described above, orange and blue can be expressed. It is possible to express yellow-green by combining green and green, and if the left and right brightness of each segment of orange and blue-green is not added to the display surface, the three colors of orange, blue-green, and yellow-green can be expressed. Expressions can be made as a collective surface, and if
If we add different brightness to the left and right sides of each display surface for orange and blue-green, four types of expressions can be created as a set surface: orange, blue-green, dark yellow-green, and light yellow-green. In this way, four types of color changes are possible by selecting two colors and giving the colors different lightness and saturation. It is also possible to display white, light gray, gray, and dark gray with only four brightness differences by replacing green with black, red with gray, and fluorescent green and fluorescent red with white in the example description. It is. In order for these expressions to impress even people who are relatively nearby, each segment must be small and the amount of aggregation must be large.

In this embodiment, flaps 2', 2'' are used for printing paper 2G, 2LR, 2
Two rubber magnets 2b' and 2b'' are stacked and sandwiched between LG and 2R, and a thin polyethylene film 4'' is sandwiched between both rubber magnets, and the polyethylene film 4'' is attached to the substrate. 1 and printed paper 1G, 1LG on the board surface as shown in Fig. 17. Also, only at the top and bottom center of two stacked rubber magnets 2b', 2b'' Single-pole double-sided magnetization is performed (the smaller the vertical width of this single pole, the greater the storage capacity within the same rubber magnet belt length, but the driving force becomes weaker). The reason why we did not embed rubber magnets as in the example shown in Figure 1 is that the flap width is narrow, and using a rubber magnet sheet over the entire area of the flap would increase production efficiency and make it more accurate than embedding rubber magnets. It's about being able to do it.

Next, as shown in FIG. 18, in this embodiment, each segment of the mojik configuration is made up of three display flaps, and in the center of the display flap, a magnet 2b with a magnetic pole that is thin in the vertical direction is protruded from the front and back of the flap. In order to recess the board side by the protruding dimension of the protruding magnet 2b, two U-shaped board frames 1 are provided.
d so as to surround the driving magnet 3, and the ends where the two substrate frames face each other are opened wider than the vertical width of the protruding magnet 2b, and the thickness of the substrate frame 1d is set to the protruding dimension of the magnet 2b. , the magnet 2b is fitted into a groove formed between the two board frames. Printed plastic synthetic paper is pasted on the front side of the board frame 1d in six equal parts, the first and second from the left.
3rd boundary, 3rd and 4th boundary, 5th and 6th boundary
A display flap 2 made of two sheets of printed synthetic paper, front and back, is rotatably supported at each boundary of the display panel by polypropylene hinges 4. Board frame 1
A thin plastic plate 1e is pasted on the inner surface of d as the bottom plate of the groove. In this example,
The same structure as the front side is made behind the driving magnet 3, so that pattern movement direction indications, traffic signals, and advertising decorations can be seen from two directions facing the road.

The feature of this embodiment is that the magnet 2b provided on the flap 2 is thin in the vertical direction.
When the circumferential surface of the drive magnet was divided by this vertical width, the storage capacity was increased to the extent that 80 different magnetization combinations were possible. This reduction in the magnetic pole area of the magnet 2b of the flap 2 results in a reduction in the driving force, so it is not possible to make it thin as in the other embodiments described so far, and it is not possible to make it protrude from the front and back sides of the flap. It became. Figure 19 shows the first
This is an explanatory diagram of the pattern movement of the example in which 24 single molecules are arranged horizontally in Figure 8, and the blinking of each molecule and the combination of blinking arrows and circles within each molecule are changed for each step from 1 to 80. , 1 step 0.25 seconds, 1 cycle 20 seconds,
You can freely change the pattern, such as high-speed or low-speed movement, pattern conversion, stop, forward movement, or backward movement. In this example, the combination of arrows and circles is used, but the color pattern moves and flashes, and from the 2-flap quaternary color change explained in FIG. Flap 8
It is also possible to apply various changes for 20 seconds as a seed color change.

In short, the characteristic structure of the present invention, whether it is an embedded type or a sandwiched type, is that a permanent magnet is attached to the reversing display body, and the magnet axis is shifted from the rotation center line of the reversing display body. It is attached so that the magnetic pole faces the display surface side, and a pivot mechanism that allows the reversing display to be reversed on the board side is created in conjunction with the reversing display and the board, and an arbitrary mechanism is installed behind the board. A driving magnet driven by a magnet is arranged, and the magnetic poles magnetized in the plurality of magnetized regions of the driving magnet are aligned with the center line of rotation of the reversing display at a position facing the magnetic pole of the permanent magnet attached to the reversing display. At the same time as moving the magnetic pole almost in parallel with the permanent magnet attached to the reversing display, the magnetic pole arrangement faces the permanent magnet of the reversing display to produce a stable first display due to the relative magnetic force with the permanent magnet attached to the reversing display. Magnetic pole, reversing display body from the first display to the second display on the opposite side
By arranging the desired display program and the N and S magnetic poles in correspondence, such as the repelling magnetic poles for reversing the display so that the display is inverted, it is possible to perform two types of display in the desired order at the desired timing. It is a display device, and this display device is used as a unit and is arranged vertically and horizontally in a matrix.
This is a display device that can perform mosaic display conversion on the entire display surface.

When the reversing display body described here is formed into a cylinder, the substrate that serves as a frame for supporting the reverse display body is colored inconspicuously, such as black. In addition, when the reversing display body is made into a plate shape (which is referred to as a flap in the description of the embodiment), the surface of the substrate that supports it is also colored for the first and second displays so as to be useful for display conversion. However, this is a conventional technical idea and is not an essential configuration of the present invention.

Furthermore, the movement of the drive magnet in the present invention means relative movement with the flap magnet.If the drive magnet is heavy and difficult to move due to its strength, the drive magnet must be fixed. Even if the substrate with the flap is moved in front of the drive magnet, the effect of the flap reversal operation remains the same.

There is also a relative relationship in the arrangement of magnetic poles between the magnet in the flap of the present invention and the drive magnet, such that the flap-side rubber magnet 2b has one thin magnetic pole vertically as shown in Fig. 1. As shown in Fig. 20, which has a plurality of magnetic pole regions arranged on one side of the flap and a plurality of magnetic pole regions arranged on the surface of the drive magnet, the flap side is magnetized in a predetermined order as shown in Fig. 20, which has a relatively opposite magnetic pole arrangement. It is also possible to have a plurality of magnetic pole regions, and the driving magnet can have mainly north pole magnetic poles so as to be able to reproduce a display according to a predetermined program.

The embodiment shown in FIG. 20 will be explained.

A fixed frame 26 with a U-shaped cross section is installed vertically,
A drive magnetic block is attached by an angle 27 or the like. On the other hand, a substrate frame 1f, which is guided by the edge of the fixed frame 26 and is movable in the vertical direction, is arranged in front of the driving magnetic block. A connecting plate 28 is attached to the lower side of this board frame 1f.
One end of the connecting plate 28 is jointed, and the other end of the connecting plate 28 is jointed to a lever 30 having a bearing 29 attached to the fixed frame 26 as a fulcrum. A wheel 31 is rotatably attached to the tip of the lever 30. Further, the fixed frame 26 includes an electric motor 3 with a reduction gear.
2 is attached by a screw 33 or the like, and a cylindrical grooved cam 34 is attached to the deceleration rotating shaft. The wheel 3 at the tip of the lever 30 is placed in the groove of the grooved cam 34.
1 is fitted. The feature of this embodiment is the relative relationship between the configuration of the drive magnetic block and the magnetic poles of the flap.Since the drive magnetic block is configured not to move, it is possible to use iron materials and permanent magnets in abundance without considering an increase in weight. It is used to create a strong, yet thin magnetic field in the vertical direction. To describe this in detail, the N-pole surfaces of the rubber magnet sheets 3d are brought into close contact with the upper and lower surfaces of a plurality of N-pole iron plates 3e, each having a width approximately equal to the inner dimension of the U-shaped cross section of the fixed frame 26, and the N-pole surfaces of the rubber magnet sheets 3d are placed horizontally at equal intervals. An S-pole iron square bar 3f having a width slightly narrower than the inside dimension of the U-shaped cross section of the fixed frame 26 is inserted between the mutually facing S-pole faces of each rubber magnet sheet 3d. It has a structure. For this reason, as shown in the magnetic field lines indicated by 35 in the figure, the magnetic field lines coming out from the wide area of the rubber magnet 3d are concentrated on the narrow end faces on the front and back sides of the N-pole iron plate 3e, so that the N-pole is This produces a thin, high-density magnetic flux.
On the other hand, the iron square bar of the S pole has a wide area exposed on the front and back sides, making it a wide, low magnetic flux density magnetic pole, and it is also arranged downward from the end of the N pole iron plate. Because of this, the influence of the flap on the magnetic pole can be almost ignored.

On the other hand, a substrate 1 is placed on the front side of the driving magnetic block in contact with the magnetic pole surface of the N-pole iron plate 3e.
The periphery of the flap is attached to the board frame 1f, and on this board 1, there are two groups of vertically long rectangular flaps whose length in the vertical direction is approximately equal to the vertical distance between the N poles, each of which has a width approximately equal to the width of the flap. The flaps 2 are attached in a mosaic arrangement by means of film hinges 4'' with twice the lateral spacing. A thin magnet 2b that is magnetized on both sides from the bottom to the bottom is sandwiched in between.Furthermore, two kinds of indications are printed on the surface of each flap 2 and the substrate 1, as shown by the white background and diagonal lines in the figure. They have the same positional relationship as described in the embodiment.

Regarding the operation of this embodiment with such a configuration, the lever 30 is moved by the cylindrical grooved cam 34 that slowly rotates by an electric motor with a reduction gear.
The board frame and the board 1 connected by the lever 30 and the connecting plate 28 can move up or down.
In this case, the shape of the grooved cam 34 is divided into a horizontal groove and an inclined groove, and the lever 30 is moved only when the wheel 31 fitted in the groove rolls into the inclined groove, and the lever 30 is stationary when it is in the horizontal groove. , and the north pole of the driving magnet is located on the back side of one of the plurality of magnetic poles of the magnet 2b in the flap on the substrate. Therefore, due to the rotation of the grooved cam 34, in the embodiment, 6
Because the magnetic polarity (N or S) of each flap in the third magnetic pole area from the bottom of the compartment is different between the white ground and the diagonal surface depending on where each flap is attached, the stability holding surface is different. Each flap is laid down on the board surface so as to represent a T-shape with diagonal lines as a whole.
Now, if the grooved cam 34 rotates as shown by the arrow and the wheel 31 moves from the inclined groove to the horizontal groove on the next lower level, the board 1 will be lowered by 1/6 of the vertical width of the flap. At this time, the flap, whose magnetic pole is magnetized on top of the previous magnetic pole with the same magnetic pole as the magnetic pole of the magnet inside the flap that was facing the N pole of the drive magnet, remains unchanged (in the shape of a T). Only the flaps that are magnetized with different magnetic poles (both sides of the bottom end of the T shape, etc.) will fall to the opposite side, making the whole U.
can express the characters. In this way, the substrate 1 moves up and down on the N pole of the drive magnet, making it possible to create six different expressions as a whole.
Furthermore, the feature of this embodiment is that it uses a cam.
It is possible to make one display longer and another display shorter, to move the display intermittently, and to arbitrarily select the display order. In addition, the drive magnetic block of this embodiment has lines of magnetic force on the back side as well as on the front side, and can be made into a double-sided display type by simply connecting a board with the same configuration as the front side with a lever. It can be made into something similar. Furthermore, the magnets inside the flap can be magnetized, demagnetized and re-magnetized from the front side, which is more convenient when used as a wall-mounted advertising machine compared to the one shown in Figure 1 which uses cylindrical permanent magnets. Errors in magnetization can be detected immediately as changes in the display.
Suitable for applications that require frequent changes in advertisement display.

Because of this structure of the present invention, as soon as the drive magnet moves behind the board, the moment the balance of magnetic force is lost, the reversing display rapidly reverses and falls to the opposite position, making it possible to display a different type of display. It is possible.

This technique is fundamental and can be used in many applications, as described in the examples. The following are the effects and features that have made these applications possible. Compared to conventional methods that use electromagnets on the drive side, this invention requires expensive electronic circuits, computer-equipped memory devices, and
Alternatively, there is no need for components that are prone to failure, such as a switch that reverses the current to the electromagnet, a blinker drum, or a carbon brush, and it can be operated by driving a permanent magnet, which is more stable than an electromagnet. Summer.

In the past, there were devices that instantaneously reversed a display with a permanent magnet attached using a drive magnet, but due to the difference in the operating principle of reversal, the following features were created.

(1) Even if a plurality of magnetized regions are continuously formed on the surface of the drive magnet by closely arranging the magnetized regions of N and S poles next to each other, the permanent magnet Since the magnetic pole portion is located near the center of rotation of the reversing display body, the magnetic force generated between the permanent magnet body and these magnetized regions can be effectively utilized. Therefore, the reverse display can be instantaneously reversed, and the practical storage density can be increased.

(2) Since the driving magnet, which is magnetically and densely memorized, is contained within the unit display device, it is possible to display a large screen matrix with a large number of unit display devices arranged in parallel, vertically and horizontally. than the one that used the magnetic force of magnets,
Because of its simple structure, it was possible to make it inexpensive and hard to break even if it was made into a large screen.

(3) From the operating principle, even without a click means, the reversing display of the present invention is reliably held by the attractive force of the driving magnet and the permanent magnet of the reversing display, and therefore there is no malfunction. In the case of a cylindrical embodiment, it can be used to display information even if it is placed outdoors in a place exposed to the wind.

(4) No special stopper is required, the board is sandwiched between the reversing display body and the drive magnet,
Due to the unique structure in which the reversing display stops, the permanent magnet of the reversing display stops as if it were attracted to the drive magnet, so there is no vibration when the display stops, and the display is ready for the next reversal immediately. Continuous high-speed display conversion is now possible.

(5) Desired magnetization of the drive magnet can be easily achieved by a recording magnetization device operated by a signal from the original image reading device, and the magnetization can be periodically changed. The drive magnets of each unit display device are connected and integrated to make it easy to operate (in the case of cylindrical drive magnets, etc., they are integrated in one horizontal row), so it can be arranged in a small area with high density. The magnetization can be performed in parallel as if printing on the magnetized area of each drive magnet with high precision of the relative positional distance of each unit display device, and multiple screens can be efficiently recorded and stored. Now I can do it.

(6) Since a plurality of patterns are displayed through cooperation between the substrate and the reverse display, a large amount of information, etc. can be displayed with a small number of reverse display bodies.

As described above, the present invention has produced effects that are different from conventional techniques, but in recent years, strong permanent magnets such as rare earth magnets and inexpensive and strong magnets such as anisotropic rubber magnets have been developed. By applying this invention to the reversing display body of the present invention, the instantaneous actuation speed is increased, and therefore the responsiveness is good and high-speed conversion and high-frequency conversion are possible. This means that
This invention is an important element when displaying animated images by arranging them in a mosaic pattern.

As described above, due to the characteristic effects of the present invention, the present invention can be used in a very wide range of applications for advertising and signal display, and can be used especially in the daytime to display neon signs and animated images even when exposed to direct sunlight. can be displayed clearly, and time displays, traffic signals, information displays, etc. can be displayed brightly. In addition, by illuminating from the diagonal front side at night, the effect is comparable to that of conventional flashing light bulbs, there is no need for maintenance to extend the life of the light bulb, and electricity consumption is low, making it industrially efficient. Highly useful.

[Brief explanation of the drawing]

Figures 1 to 3 show the first embodiment of the present invention, with Figure 1 being a perspective view, Figure 2 being a partial sectional view across the center before display conversion, and Figure 3 being after display conversion. 4 to 6 show a second embodiment of the present invention, FIG. 4 is a perspective view, and FIG. 5 is a partial sectional view of FIG. 4, and FIG. is a sectional view taken along line C-C in FIG. 5, FIG. 7 is a perspective view of the third embodiment, FIG. 8 is a partial sectional view taken across the center of FIG. 7, and FIG. A cross-sectional view along the D line,
10 to 12 show other embodiments of the present invention, in which FIG. 10 is an overall front view, FIG. 11 is a sectional view taken along line A-A in FIG. 10, and FIG. 13 and 14 show an embodiment in which the present invention is applied to a digital watch. FIG. 13 is a front view, FIG. 14 is a partially omitted rear perspective view, and Figures 15 to 17 show still other embodiments of the present invention, with Figure 15 being a partial perspective view and Figure 1 being a partial perspective view.
6A to 6D are explanatory diagrams for explaining color conversion, FIG. 17 is a central cross-sectional view during display conversion, FIG. 18 is a perspective view of another embodiment, and FIG. 19 is a change in display expression over time. FIG. 20 is a partially cutaway perspective view showing still another embodiment of the present invention. 1...Substrate, 2, 2', 2''...Reverse display body (flap), 2b, 2b', 2b''...Permanent magnet (rubber magnet), 3, 3a, 3a', 3b, 3b', 3c...
...driving magnet.

Claims (1)

[Scope of utility model registration request] a reversing display unit rotatably attached to the front side of the board and collaborating with the board to display a plurality of patterns by being rotated between two stable positions; A driving magnet is arranged to be movable relative to the display body and has a plurality of magnetized regions continuously formed on its surface, and a magnetic pole portion is provided at least near the center of rotation of the reversing display body. A display device comprising: a permanent magnet body which is mounted so that a fixed magnetic region of the driving magnet is located, and which flips the reversing display body from one stable position to the other stable position when a predetermined fixed magnetic region of the drive magnet approaches.