WO2023157287A1 - ピンディスプレイ装置、ピンディスプレイシステム - Google Patents
ピンディスプレイ装置、ピンディスプレイシステム Download PDFInfo
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- WO2023157287A1 WO2023157287A1 PCT/JP2022/006910 JP2022006910W WO2023157287A1 WO 2023157287 A1 WO2023157287 A1 WO 2023157287A1 JP 2022006910 W JP2022006910 W JP 2022006910W WO 2023157287 A1 WO2023157287 A1 WO 2023157287A1
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- magnetic sheet
- housing
- pole
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
- G09F9/375—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the position of the elements being controlled by the application of a magnetic field
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
Definitions
- the present invention relates to pin displays.
- conventionally known pin displays have the axial direction of each pin in the z-direction, and the set of x-coordinate value and y-coordinate value of the axis is A plurality of pins arranged differently for each pin are provided, and one end (hereinafter referred to as "upper end") of all the pins is positioned on the plane of the same z-coordinate value in the non-display state, By applying a force acting in the z-direction to a desired pin, the desired pin is moved in the z-direction, and information is displayed by a three-dimensional point group formed by the upper ends of a plurality of pins.
- Non-Patent Document 1 a magnet is attached to the lower end of each pin, and by generating a magnetic field with an electromagnet placed close to each magnet, the pin is moved using the attractive force and repulsive force of the magnet.
- a moving pin display device is disclosed.
- Non-Patent Document 1 arbitrary display can be performed by moving the pin using the attraction force and the repulsion force.
- Various pin displays other than Non-Patent Document 1 are known, and even pin displays other than Non-Patent Document 1 move pins by electrical control. That is, the prior art of pin displays has the problem of requiring an electrical control mechanism involving power supply and wiring.
- An object of the present invention is to provide a pin display that does not require an electrical control mechanism involving power supply and wiring.
- One aspect of the present invention is a pin display device comprising a housing and a plurality of pins, wherein at least the direction in which gravity acts is the negative direction of the z direction, and the lower surface of the housing is the upper surface, which is one surface of a magnetic sheet.
- the housing for use as a pin display system in contact with or in close proximity to the housing, the housing having a bottom surface of the housing that is a plane perpendicular to the z-direction and a positive z-direction with respect to the bottom surface of the housing.
- each pin insertion hole is a hole into which a pin is inserted from the upper surface of the housing, and the same number of pin insertion holes as the pins are arranged in a plane perpendicular to the z direction.
- the material of the housing is a material that does not block or reduce the magnetic lines of force, does not control the path of the magnetic lines of force, and does not generate the magnetic lines of force.
- the end provided with the pot magnet is directed in the negative direction of the z direction and inserted into the pin insertion hole.
- the repulsive force due to the magnetic force generated between the pot magnet and the upper surface of the magnetic sheet pushes the pin provided with the pot magnet in the positive z direction. It emits a movable magnetic field, and the interval between adjacent pin insertion holes is at least the shortest distance at which the magnetic force generated between the pot magnets of the pins inserted into the adjacent pin insertion holes does not affect the pin movement.
- a magnetic sheet of the same kind as the magnetic sheet is rewritten by the magnetic field emitted by the pot magnet whose length in the z direction emits the same magnetic field as the pot magnet.
- the pin display device is characterized in that a gap is provided that is greater than or equal to the shortest distance that does not occur.
- One aspect of the present invention is a pin display system including the pin display device described above and a magnetic sheet having one surface arranged in contact with or in close proximity to the bottom surface of the housing of the pin display device.
- FIG. 1 is a perspective view illustrating a pin display system 300.
- FIG. 2 is a perspective view illustrating pin display system 300 .
- FIG. 3 is a side view of an exemplary pin display system 300.
- FIG. 4 is a perspective view illustrating the housing 110 of the pin display device 100.
- FIG. 5 is a perspective view illustrating a housing 110 of the pin display device 100, one pin 120 of the pin display device 100, and how the pin 120 is inserted into the housing 110.
- FIG. FIG. 6A is a diagram illustrating the lower surface 121a of the pot magnet 121.
- FIG. FIG. 6B is a cross-sectional view illustrating the pot magnet 121.
- FIG. 6C is a cross-sectional view illustrating another example of the pot magnet 121.
- FIG. FIG. 7 is a cross-sectional view illustrating the housing 110 of the pin display device 100.
- FIG. 8 is a diagram showing the relationship between the magnetization of the upper surface of the magnetic sheet and the magnetic flux density in the space near the upper surface of the magnetic sheet.
- FIG. 9A is a diagram schematically showing an example of the magnetic pattern of the magnetic sheet 200.
- FIG. 9B is a perspective view illustrating the display state of the pin display device 100 when the magnetic sheet 200 is magnetized with the magnetic pattern illustrated in FIG. 9A.
- FIG. 10A is a diagram schematically showing another example of the magnetic pattern of the magnetic sheet 200.
- FIG. 10B is a perspective view illustrating the display state of the pin display device 100 when the magnetic sheet 200 is magnetized with the magnetic pattern illustrated in FIG. 10A.
- FIG. 11 is a side view of an exemplary pin display system 301.
- FIG. 12 is a perspective view of an exemplary pin display system 600.
- FIG. 13 is a top view illustrating the housing 510 of the pin display device 500.
- FIG. 14 is a cross-sectional view illustrating the housing 510 of the pin display device 500.
- FIG. FIG. 15 is a perspective view illustrating pins 520-X1, 520-X2, and 520-X3 of the pin display device 500.
- FIG. 16A is a diagram for explaining the magnetic flux density B(d).
- FIG. 16B is a diagram for explaining the magnetic flux density B(d,d').
- a pin display system 300 of the first embodiment includes a pin display device 100 and a magnetic sheet 200, as illustrated in FIGS.
- the pin display device 100 of the first embodiment includes a housing 110 and 25 pins 120 .
- the axes orthogonal to each other in the three-dimensional space are the x-axis, the y-axis, and the z-axis illustrated in FIGS. 1 and 2 .
- the pin display device 100 and the magnetic sheet 200 are arranged such that the lower surface 110a of the housing 110 of the pin display device 100 and the upper surface 200a of the magnetic sheet 200 are in contact with or close to each other.
- the pin display device 100 is used as a pin display system 300 by bringing the lower surface 110a of the housing 110 into contact with or close to the upper surface 200a of the magnetic sheet 200.
- FIG. The upper surface 200a of the magnetic sheet 200 is one of two surfaces that the magnetic sheet 200 has.
- "Proximity" means that a thin-film object such as paper or cloth is placed on the upper surface 200a of the magnetic sheet 200, and the lower surface 110a of the housing 110 of the pin display device 100 is placed on the thin-film object.
- the lower surface 110a of the housing 110 of the pin display device 100 and the upper surface 200a of the magnetic sheet 200 are not in contact with each other, the lower surface 110a of the housing 110 of the pin display device 100 and the magnetic sheet 200 are not in contact with each other.
- the pin display device 100 is affected by the magnetic field of the magnetic sheet 200 in substantially the same way as when the upper surface 200a of the sheet 200 is in contact.
- the pin display device 100 of the first embodiment has 25 pins 120, only one pin 120 included in the pin display device 100 is given a reference number in consideration of the visibility of each figure. There is. The same applies to reference numbers for a plurality of pins, a plurality of pin insertion holes, and each portion of the pins and pin insertion holes in each drawing described later. Since the pin display system 300 uses gravity to move the pins 120 in the negative z-direction (i.e., in the direction opposite to the direction indicated by the z-direction arrows in FIGS.
- the direction of gravity is used as the negative z-direction. That is, the pin display system 300 is preferably such that the x-axis and the y-axis are two orthogonal axes in the horizontal plane. However, the pin display system 300 may use at least the direction in which gravity acts as the negative direction of the z direction. That is, it is possible to use the pin display system 300 even when the x-axis and the y-axis are two orthogonal axes in a plane that is slightly tilted with respect to the horizontal plane.
- the housing 110 has a lower surface 110a that is a plane perpendicular to the z direction, and an upper surface 110b that is a plane parallel to the lower surface 110a in the positive direction of the z direction with respect to the lower surface 110a.
- 25 pin insertion holes 111 are provided.
- Each pin insertion hole 111 is a hole into which the pin 120 is inserted from the upper surface 110b side, as illustrated in FIG. It is generally cylindrical with its axis in the z-direction.
- the two parallel substantially circular bottom surfaces of each substantially cylindrical pin insertion hole 111 are located within the top surface 110b of the housing 110 and z-axis relative to the cylindrical top surface 111b, as illustrated in FIG.
- the lower surface 111a is a plane perpendicular to the z-direction in the negative direction.
- the 25 pin insertion holes 111 have different positions on a plane perpendicular to the z-direction. are arranged in a 5 ⁇ 5 matrix.
- the material of the housing 110 is a material such as plastic, resin, or paper that does not block or reduce the lines of magnetic force, does not control the path of the lines of magnetic force, and does not generate the lines of magnetic force.
- the diameter of the substantially cylindrical shape of each pin insertion hole 111 allows the substantially cylindrical pin 120 to move easily in both the positive and negative directions in the z direction, but the substantially cylindrical pin 120 does not move in the x and x directions. A value slightly larger than the diameter of the substantially cylindrical shape of the pin 120 is set in advance by experiment or the like so that the pin 120 hardly moves in the y direction.
- Each pin 120 is inserted into each pin insertion hole 111 of the housing 110, as illustrated in FIG. It has a generally cylindrical profile with the top surface 120b being a flat plane.
- Each pin 120 is provided with a pot magnet 121 at one end with the opening of the container (pot) facing outward, and the end with the pot magnet 121 is oriented in the negative z-direction to hold the housing. It is inserted into each pin insertion hole 111 of 110 .
- the pot magnet 121 is made of a material having a high magnetic permeability and having an opening 1212a on one surface, as shown in FIG. 6A in its bottom view and in FIG.
- a permanent magnet 1211 is fixed inside a container 1212 .
- One pole 1211 b of the permanent magnet 1211 is in contact with a contact surface 1212 b inside the container 1212 .
- the other pole 1211a of the permanent magnet 1211 is exposed from the opening 1212a.
- a material with high magnetic permeability is, for example, iron or stainless steel.
- a low magnetic permeability layer which is a layer of a material with low magnetic permeability, is provided to prevent the non-polar portion of the permanent magnet 1211 from contacting the container 1212 and short-circuiting the magnetic lines of force.
- a layer 1213 is provided. Examples of materials with low magnetic permeability are resin, paper, and air.
- an attractive force generated between the pole 1211b of the permanent magnet 1211 and the contact surface 1212b of the container 1212 may be used, or an adhesive may be used. be.
- the permanent magnet 1211 and the container 1212 are often adhered using an adhesive having a strong adhesion so as not to be easily peeled off.
- the bottom surface 121a of the pot magnet 121 is between the pole 1211a of the permanent magnet 1211, the opening 1212a of the container 1212 surrounding the pole 1211a of the permanent magnet 1211, and the pole 1211a of the permanent magnet 1211 and the opening 1212a of the container 1212. and the lower surface 1213 a of the low magnetic permeability layer 1213 .
- the low magnetic permeability layer 1213 may be an air layer as described above, the lower surface 1213a of the low magnetic permeability layer 1213 may not be visible. That is, the lower surface 121a of the pot magnet 121 may be formed by the pole 1211a of the permanent magnet 1211 and the opening 1212a of the container 1212 surrounding the pole 1211a so as not to contact the pole 1211a.
- the pole 1211a of the permanent magnet 1211 and the opening 1212a of the container 1212 may or may not be coplanar as illustrated in FIG. 6B.
- the pole 1211a of the permanent magnet 1211 may be slightly toward the inside of the container 1212 than the opening 1212a of the container 1212 .
- the pole 1211 a of the permanent magnet 1211 may be 0.2 mm to 0.4 mm inward of the container 1212 from the opening 1212 a of the container 1212 .
- the lower surface 1213a of the low magnetic permeability layer 1213 exists clearly, the lower surface 1213a of the low magnetic permeability layer 1213 is in the same plane as the opening 1212a of the container 1212 or is closer to the container than the opening 1212a of the container 1212. 1212 inward direction.
- the pole 1211a of the permanent magnet 1211, the opening 1212a of the container 1212, and the lower surface 1213a of the low magnetic permeability layer 1213 are illustrated in FIG. , ie, an example in which the bottom surface 121a of the pot magnet 121 is a circular plane, ie, an example in which the bottom surface 120a of the pin 120 is planar and the pin 120 is cylindrical.
- the material and shape of the containers 1212 of the pot magnets 121 included in all the pins 120 are the same. Also, the material, shape and strength of the permanent magnets 1211 of the pot magnets 121 included in all the pins 120 are the same.
- the poles 1211a of the permanent magnets 1211 of the pot magnets 121 included in all the pins 120 are the same pole (for example, N pole).
- Each pot magnet 121 is provided with a lower surface 120a of each pin 120 with a lower surface 121a of the pot magnet 121 facing outward. That is, each pot magnet 121 is provided on the lower surface 120a of each pin 120 so that the lower surface 121a of the pot magnet 121 faces the lower surface 120a of the pin 120. As shown in FIG.
- each pin 120 may be configured such that the lower surface 121 a of each pot magnet 121 , which is a circular plane, is one of the lower surfaces 120 a of the pin 120 , which is a circular plane.
- the lower surface 120a of each pin 120 is in contact with the lower surface 111a of each pin insertion hole 111 of the housing 110 due to gravity when the external magnetic field is so small that its influence can be ignored.
- each pin 120 is repelled by the magnetic force generated between each pot magnet 121 of each pin 120 and the upper surface 200a of the magnetic sheet 200.
- each pot magnet 121 provided in each pin 120 emits a magnetic field capable of moving each pin 120 in the positive direction of the z direction due to the repulsive force generated by the magnetic force generated between itself and the upper surface 200a of the magnetic sheet 200. must be something.
- each pin 120 may be the same as the depth of each pin insertion hole 111 (i.e., the cylindrical height of each pin insertion hole 111); It is longer than the depth (length) of the pin insertion hole 111 .
- the upper surface 120b of each pin 120 has the same z-coordinate position as the upper surface 111b of the pin insertion hole 111 when the opposite direction of the z-direction is the direction in which gravity acts at least, and the external magnetic field is small enough to ignore its influence. , or a position having a predetermined z-coordinate in the positive direction from the top surface 111 b of the pin insertion hole 111 .
- the direction opposite to the z-direction is the direction in which gravity acts at least, and when the external magnetic field is small enough to ignore its influence, the upper surfaces 120b of all the pins 120 are at the same height as the upper surface 110b of the housing 110.
- the top surface 120b of all the pins 120 are at a certain predetermined height higher than the top surface 110b of the housing 110 .
- the plane formed by the upper surfaces 120b of all the pins 120 when the external magnetic field is negligibly small corresponds to the state where the pin display device 100 displays nothing. Since the pin display device 100 displays information by a three-dimensional point group formed by the upper surfaces 120b of all the pins 120, it is not essential that the upper surfaces 120b of the pins 120 be flat.
- the top surface 120b of each pin 120 may include an open portion.
- Each pin 120 moves in the positive direction of the z direction due to the repulsive force caused by the magnetic force generated between each pot magnet 121 and the upper surface 200a of the magnetic sheet 200.
- the maximum value of the amount of movement of each pin 120 in the z direction should be large. However, if the maximum amount of movement of each pin 120 in the z-direction is greater than the depth of each pin-insertion hole 111 (that is, the cylindrical height of each pin-insertion hole 111), the pin 120 moves in the z-direction. The pin 120 jumps out of the pin insertion hole 111 when the amount of movement to reaches the maximum value.
- each pin insertion hole 111 must be larger than the maximum amount of movement of each pin 120 in the z-direction, and the length of each pin 120 must be greater than the maximum amount of movement of each pin 120 in the z-direction. Must be greater than the maximum amount that can be moved.
- each pin 120 may be provided with a spacer 122 other than the pot magnet 121 .
- Each spacer 122 does not block or reduce the lines of magnetic force so as not to hinder the positive movement of each pin 120 in the z direction due to the repulsive force due to the magnetic force generated between each pot magnet 121 and the magnetic sheet 200. It should not control the path of magnetic lines of force, should not generate magnetic lines of force, and should be as lightweight as possible.
- the pin display device 100 moves a desired pin 120 out of all the pins 120 included in the pin display device 100 in the z-direction by repulsive force due to the magnetic force generated between the pot magnet 121 included in the pin display device 120 and the magnetic sheet 200 .
- By moving in the positive direction information is displayed by a three-dimensional point group formed by the upper surfaces 120b of all the pins 120 provided in the pin display device 100.
- FIG. In order to increase the displayable range of the pin display device 100 in the z direction, it is sufficient to increase the movable range of the pin display device 100 in the z direction. should emit a strong magnetic field.
- the magnetic force generated between the pot magnets 121 provided on the adjacent pins 120 affects the movement of the adjacent pins 120 relative to each other. Therefore, it becomes necessary to widen the interval between adjacent pins 120 so that the magnetic field emitted by the pot magnet 121 does not affect the movement of another pin 120 . However, if the distance between adjacent pins 120 is widened, the display resolution in the x- and y-directions of the pin display device is reduced.
- the distance between adjacent pins 120 and the strength of the magnetic field emitted by the pot magnet 121 provided on each pin 120 are determined by the display resolution of the pin display device in the x and y directions, and the display resolution of the pin display device 100 in the z direction. must be determined in consideration of the displayable range of Specifically, the magnetic field emitted by the pot magnets 121 of each pin 120 should not affect the movement of the pins 120 due to the magnetic forces generated between the pot magnets 121 provided on adjacent pins 120 .
- the interval between the adjacent pin insertion holes 111 is the shortest distance or more that the magnetic force generated between the pot magnets 121 provided in the pins 120 inserted into the adjacent pin insertion holes 111 does not affect the movement of the pins 120.
- the shortest distance at which the magnetic force generated between the pot magnets 121 provided on the pins 120 inserted into the adjacent pin insertion holes 111 does not affect the movement of the pin 120 is a certain pin insertion hole.
- the maximum value of this attractive force is, for example, on the lower surface 121a side of the first pot magnet 121.
- the maximum value of the magnetic flux density (hereinafter referred to as the “first maximum value” for convenience) on the cylindrical surface located half the distance from the central axis of the pot magnet 121 and the lower surface of the second pot magnet 121 121a on the opposite side (that is, on the upper surface side), the maximum value of the magnetic flux density on the cylindrical surface at a distance of 1/2 the distance from the center axis of the pot magnet 121 (hereinafter referred to as the “second maximum value” for convenience) ) and the sum of In the pin display device 100 implemented by the inventor, if the sum of the first maximum value and the second maximum value is 4 mT or less, the pot magnet 121 provided on the pin 120 inserted into the adjacent pin insertion hole 111 It has been found that the magnetic forces generated between them do not affect the
- the shortest distance may be set so that the magnetic force generated between the pot magnets 121 provided in 120 does not affect the movement of the pin 120 .
- the shortest distance at which the magnetic force generated between the pot magnets 121 provided on the pins 120 inserted into the adjacent pin insertion holes 111 does not affect the movement of the pins 120 is the spatial magnetic flux generated by the pot magnets 121.
- the shortest distance is preferably determined experimentally because it is based on various factors such as the weight of the pin 120 and the friction between the pin 120 and the pin insertion hole 111 as well as the widening.
- the housing 110 is arranged such that the lower surface 110a contacts or is adjacent to the upper surface 200a of the magnetic sheet 200 .
- each pin 120 provided with each pot magnet 121 is moved by a desired amount in the z direction due to the repulsive force generated by the magnetic force generated between each pot magnet 121 and the upper surface 200a of the magnetic sheet 200.
- the portions of the upper surface 200a facing the pot magnets 121 are magnetized so as to form a magnet.
- the magnetic sheet 200 is a rewritable magnetic sheet, that is, a magnetic sheet that can be arbitrarily set to be an S pole or an N pole by exposing each portion of each surface to a magnetic field stronger than a predetermined value.
- a rewritable magnetic sheet is a powdery ferromagnetic material such as a ferrite magnetic rubber sheet mixed with a material that does not block or reduce magnetic lines of force, does not control the path of magnetic lines of force, and does not generate magnetic lines of force. It is molded into a sheet shape.
- the pot magnet 121 Since the direction of the local magnetic pole of the magnetic sheet 200 can be rewritten, the pot magnet 121 is released when the top surface 200a of the magnetic sheet 200 and the pot magnet 121 come into contact with each other or, even if they do not come into contact with each other, come close to each other. The direction of the magnetic poles of the portion of the upper surface 200a of the magnetic sheet 200 facing the pot magnet 121 is rewritten by the applied magnetic field. Then, no repulsive force is generated between the pot magnet 121 and the portion of the upper surface 200a of the magnetic sheet 200 where the pot magnet 121 faces. As a result, the pin 120 stops moving and the pin display device 100 stops displaying.
- the pot magnets 121 and the upper surface 200a of the magnetic sheet 200 are too far apart, even if the upper surface 200a of the magnetic sheet 200 is magnetized as desired, the distance between each pot magnet 121 and the upper surface 200a of the magnetic sheet 200 will increase. A repulsive force is not generated between them, and the pin display device 100 fails to display a desired image.
- the length in the z direction is the same magnetism used for the magnetic sheet 200 due to the magnetic field emitted by the same pot magnet used for the pot magnet 121 (i.e., the pot magnet emitting the same magnetic field as the pot magnet 121).
- the shortest distance that does not rewrite the polarity of the sheet that is, the same base material as the magnetic sheet 200, the same ferromagnetic material, and the same mixing ratio as the magnetic sheet 200, or the same kind of magnetic sheet as the magnetic sheet 200
- first shortest distance the same pot magnet used for pot magnet 121
- the same magnetic sheet used for magnetic sheet 200 that is, magnetic sheet 200 and A gap 112 having a length in the z direction that is equal to or less than the longest distance at which no magnetic force is generated is provided between the same substrate, the same ferromagnetic material, the same mixing ratio of the magnetic sheet, and the magnetic sheet of the same type as the magnetic sheet 200.
- the length of the gap 112 in the z direction is the shortest distance that does not cause rewriting of the same magnetic sheet used for the magnetic sheet 200 by the magnetic field emitted by the same pot magnet used for the pot magnet 121.
- the length slightly exceeding the shortest distance that is, the first shortest distance or the length slightly exceeding the first shortest distance is preferable.
- the length of the gap 112 in the z direction is the shortest distance (that is, the first shortest distance) that does not rewrite the polarity of the magnetic sheet made of the same material as the magnetic sheet 200 by the magnetic field emitted by the same pot magnet used for the pot magnet 121 . distance), the magnetic field emitted by the pot magnet 121 weakens the magnetic pole of the portion of the upper surface 200a of the magnetic sheet 200 facing the pot magnet 121 .
- the length of the gap 112 in the z direction is the shortest distance (hereinafter referred to as "second "shortest distance") or more. Note that the second shortest distance is longer than the first shortest distance. From the above, it follows that the length of the gap 112 in the z-direction must be equal to or greater than the first shortest distance, and desirably equal to or greater than the second shortest distance. The length of the gap 112 in the z direction may be determined experimentally or based on the following calculations.
- the magnetic flux density B(d) at a point at a distance d in the vertical direction from the center of the magnetic pole face due to the magnetic charge distributed on one side of the magnetic pole face of a circular magnet with a radius R which is the residual magnetic flux density Br is approximately represented by the following formula (1).
- the unit of length is mm and the unit of magnetic flux density is mT.
- the pole 1211a of the permanent magnet 1211 there are a magnetic pole surface due to the pole 1211a of the permanent magnet 1211 and a magnetic pole surface due to the opening 1212a of the container 1212, which is opposite to the pole 1211a of the permanent magnet 1211. Since the pole 1211b opposite to the pole 1211a of the permanent magnet 1211 is in contact with the contact surface 1212b inside the container 1212, the magnetic flux emitted from the pole 1211b of the permanent magnet 1211 passes through the container 1212. , are scattered and emitted from the opening 1212a of the container 1212, so that the opening 1212a behaves like a magnetic pole. However, some of the magnetic flux leaks around the container 1212 .
- the radius of the poles 1211a and 1211b of the permanent magnet 1211 is R1
- the radius of the inner periphery of the opening 1212a of the container 1212 is R2
- the radius of the outer periphery of the opening 1212a of the container 1212 is R3
- the poles of the permanent magnet 1211 are Let S1 be the area of 1211a and 1211b, S2 be the area of the opening 1212a of the container 1212, Br be the residual magnetic flux density of the permanent magnet 1211, and c be the loss factor based on leakage.
- the magnetic flux density B(d,d') at a point that is a vertical distance d from the center of the pole 1211a of the container 1212 and a vertical distance d' from the center of the opening 1212a of the container 1212 is given by the following equation (2) can be calculated by
- the residual magnetic flux density Br of the permanent magnet 1211 is approximately 800mT to 1200mT.
- the length of the gap 112 in the z-direction is calculated by Equation (2) using the above-described values of the distance between the center of the pole 1211a of the permanent magnet 1211 of the pot magnet 121 and the upper surface 200a of the magnetic sheet 200. At least the shortest distance d at which the magnetic flux density B(d, d') does not rewrite the polarity of the same magnetic sheet used for the magnetic sheet 200, and/or the center of the opening 1212a of the container 1212 of the pot magnet 121 and the distance between the upper surface 200a of the magnetic sheet 200 and the magnetic flux density B(d, d') calculated by the equation (2) using the above values rewrites the polarity of the magnetic sheet that is the same as that used for the magnetic sheet 200.
- the length must be greater than or equal to the shortest distance d' that gives no value.
- the length of the gap 112 in the z direction is calculated by Equation (2) using the above-described values of the distance between the center of the pole 1211a of the permanent magnet 1211 of the pot magnet 121 and the upper surface 200a of the magnetic sheet 200.
- the distance between the center of the portion 1212a and the upper surface 200a of the magnetic sheet 200 is the same as that used for the magnetic sheet 200. It is desirable that the length be equal to or greater than the shortest distance d' that does not weaken the magnetic force of the magnet.
- the surface magnetic flux density at the center of the lower surface of the pot magnet is about 300 mT. Met.
- the pin 120 will not be lifted, and the distance in the z-direction between the opening 1212a of the container 1212 of the pot magnet 121 and the top surface 200a of the magnetic sheet 200.
- the behavior of the pin 120 was not stable at 0.5 to 0.8 mm, and the pin 120 was stably lifted when the distance in the z direction between the opening 1212a of the container 1212 of the pot magnet 121 and the upper surface 200a of the magnetic sheet 200 was 0.9 mm or more. .
- the magnetic flux density of the pot magnet 121 is 200 mT or more, The magnetic sheet 200 could be rewritten by the magnetic field emitted by the pot magnet 121 .
- the magnetic flux density of the pot magnet 121 is 100 to 200 mT.
- the magnetic field emitted by the pot magnet 121 was sufficient to temporarily weaken the magnetic field emitted from the magnetic sheet 200 . Therefore, the inventors assumed that the first shortest distance is 0.5 mm and the second shortest distance is 0.8 mm, and the container of the pot magnet 121 of the pin display device 100 in order to make the control of the pin 120 more reliable.
- the length of the gap 112 in the pin display device 100 in the z direction was set so that the distance in the z direction between the opening 1212a of the pin display device 1212 and the upper surface 200a of the magnetic sheet 200 was 1.0 mm.
- the magnetic flux density of the same magnetic sheet used for the magnetic sheet 200 that does not weaken the magnetic force is less than 100 mT.
- the distance between the center of the pole 1211a of the permanent magnet 1211 of the pot magnet 121 and the upper surface 200a of the magnetic sheet 200 and/or the pot magnet 121 The distance between the center of the opening 1212a of the container 1212 and the upper surface 200a of the magnetic sheet 200 may be set.
- the length of the gap in the z-direction is assumed to be d for the sake of simplicity.
- each pin 120 provided with each pot magnet 121 moves in the positive z-direction due to the repulsive force caused by the magnetic force generated between each pot magnet 121 and the upper surface 200a of the magnetic sheet 200.
- the portions of the upper surface 200a facing the pot magnets 121 are magnetized so that the amount of movement of the pot magnets 121 is a desired magnitude. If each pot magnet 121 and the upper surface 200a of the magnetic sheet 200 are in contact, the optimum magnetic pattern of the upper surface 200a for lifting the pin 120 is the same magnetic pattern as the lower surface 121a of the opposing pot magnet 121. .
- each pin 120 does not move in the positive z-direction, the bottom surface 121a of each pot magnet 121 and the top surface 200a of the magnetic sheet 200 are separated by the length d of the gap 112 in the z-direction. ing.
- the bottom surface 121a of each pot magnet 121 and the top surface 200a of the magnetic sheet 200 move by the length d of the gap 112 in the z-direction. Separated by the length plus the amount.
- each pin 120 is moved in the positive direction of the z direction to the desired amount.
- D i is a number specifying each pin and is an integer of 1 or more and 25 or less
- each pin 120 is moved in the positive direction of the z direction to the desired amount.
- Di the amount of movement Di
- each pot magnet 121 and the upper surface of the magnetic sheet 200 The magnetic force generated between 200a must produce a repulsive force greater than the gravitational force acting on each pin 120 in the negative z-direction.
- FIG. 8 a stripe-shaped magnetic pattern consisting of an N pole and an S pole sandwiching the N pole is magnetized on the upper surface of the magnetic sheet, and the magnetic pattern near the upper surface of the magnetic sheet is magnetized. This is the result of the inventor's measurement of the magnetic flux density in the space.
- the horizontal axis in FIG. 8 is the widthwise direction of the belt, and the vertical axis is the distance from the upper surface. As shown in FIG.
- the magnetic pattern on the upper surface 200a of the magnetic sheet 200 that is suitable for lifting the pin 120 is the magnetic pattern on the lower surface 121a of the pot magnet 121 that faces it. , and is a magnetic pattern slightly larger than the magnetic pattern of the lower surface 121a of the pot magnet 121 facing it. Therefore, in the case of using the pin 120 having the pot magnet 121 illustrated in FIGS.
- the portion facing the pot magnet 121 includes, for example, a circular shape having substantially the same size as the lower surface 121a of the opposing pot magnet 121 and the same pole (for example, N pole) as the pole 1211a of the permanent magnet 1211, and a A magnetic pattern composed of a ring-shaped permanent magnet 1211 having a pole opposite to the pole 1211a (for example, an S pole) may be magnetized.
- ⁇ Display at various heights of the top end of the pin 120> In order to cause the pin display device 100 to display the top ends of the pins 120 at various heights, it is necessary to control the amount of movement of each pin 120 in the positive z direction. However, since the pin display device 100 displays information by a three-dimensional point group formed by the upper ends (upper surfaces 120b) of a plurality of pins 120, the amount of movement of each pin 120 in the positive z direction is It is not necessary to strictly control the size, and by controlling the relative amount of movement of each pin 120 in the positive direction in the z direction, the upper ends of the plurality of pins 120 can be moved at various heights. display can be realized. The relative amount of movement of each pin 120 in the positive z direction can be controlled by considering the spatial spread of the magnetic flux in the three-dimensional space on the upper surface side of the magnetic sheet.
- the diameter of the lower surface 121a of the pot magnet 121 facing the pot magnet 121 of the pin 120 to be moved larger is the width of the band area.
- a band region with the same pole (for example, N pole) as the pole 1211a of the permanent magnet 1211, and regions with opposite poles (for example, S pole) to the pole 1211a of the permanent magnet 1211, which are arranged on both sides of the band region. is magnetized, it is possible to control the relative amount of movement of each pin 120 in the positive direction of the z direction.
- the magnetization of the portion of the upper surface 200a of the magnetic sheet 200 that does not face directly below the pot magnet 121 of any pin 120 nor the peripheral edge thereof is optional.
- the pin display device 100 displays as illustrated in FIG. 9B. That is, as can be seen from FIGS. 9A and 9B, the portions of the top surface 200a of the magnetic sheet 200 facing the pot magnets 121 of the plurality of pins 120 that move in the positive direction in the z direction are opposite to each other.
- a first portion of the pot magnet 121 having the same pole (eg, N pole) as the pole 1211a of the permanent magnet 1211 of the pot magnet 121 and a second portion surrounding the first portion and having an opposite pole (eg, S pole) to the pole 1211a. and the magnetic pattern is magnetized, and movement of the plurality of pins 120 in the positive z direction of the upper surface 200a of the magnetic sheet 200 in the positive direction of the z direction.
- a magnetic pattern magnetized in the portion facing the pot magnet 121 of the pin 120 having a first movement amount, and the positive direction of the z direction among the plurality of pins 120 to be moved in the positive direction of the z direction
- the magnetic pattern magnetized on the portion of the pin 120 facing the pot magnet 121 is different from the first movement amount.
- each pin 120 moves in the positive direction of the z direction. If the movement of each pin 120 in the positive direction of the z direction is to be controlled, each pot magnet 121 is placed in the portion of the upper surface 200a of the magnetic sheet 200 facing the pot magnet 121 of each pin 120. Whether or not a repulsive force capable of moving each provided pin 120 in the positive direction of the z direction is exerted between each pot magnet 121 and the upper surface 200a of the magnetic sheet 200 is magnetized. Just do it.
- the same poles 1211a as the permanent magnets 1211 of the pot magnets 121 facing the pot magnets 121 of the pins 120 that move in the positive direction in the z direction are provided.
- a magnetic pattern formed by a first portion that is a pole (for example, N pole) and a second portion that surrounds the first portion and is a portion that is opposite to the pole 1211a (for example, S pole) is magnetized. It is good if it is.
- the second portion may completely surround the first portion, or may partially surround the first portion so as to sandwich the first portion from both sides.
- the same poles 1211a as the permanent magnets 1211 of the pot magnets 121 facing the pot magnets 121 of the pins 120 that move the pins 120 in the positive z direction are provided.
- the magnetic pattern may be magnetized.
- the parts facing the pot magnets 121 of the pins 120 that are not moved in the positive direction in the z direction have the same poles as the poles 1211a of the permanent magnets 1211 (A magnetic pattern that is not a magnetic pattern by a third portion that is a N pole, for example) and a fourth portion that surrounds the third portion and has a pole opposite to the pole 1211a (e.g., S pole). It suffices if it is magnetized.
- a pole opposite to the pole 1211a of the permanent magnet 1211 of the opposing pot magnet 121 is attached to the portion of the pin 120 facing each of the pot magnets 121 that is not allowed to move in the positive z direction. and a portion surrounding the portion and having the same pole (for example, N pole) as the pole 1211a. Only the opposite pole (for example, S pole) may be magnetized, or only the same pole (for example, N pole) as the pole 1211a of the permanent magnet 1211 of the opposing pot magnet 121 may be magnetized. It should be noted that the magnetization of the portion of the upper surface 200a of the magnetic sheet 200 that does not face directly below the pot magnet 121 of any pin 120 nor the peripheral edge thereof is optional.
- the pin display device 100 displays as illustrated in FIG. 10B.
- 9A and 10A for example, the entire upper surface 200a of the magnetic sheet 200 is magnetized to the S pole, and then the upper surface 200a of the magnetic sheet 200 is shown in FIGS. 9A and 10A. It can be magnetized by bringing the S pole of a powerful neodymium magnet into contact with the dark colored portion.
- 9A and 10A of the upper surface 200a of the magnetic sheet 200 a magnetizer having an S pole of a neodymium magnet at its tip is used to magnetize the portion.
- the tip of the porcelain is pressed against the upper surface 200a of the magnetic sheet 200, and the tip of the magnetizer is moved so as to draw the dark colored portion in FIGS. 9A and 10A.
- the pin display device 100 includes 25 pins 120 and pin insertion holes 111 in the first embodiment, the number of pins is not limited to this. That is, the pin insertion hole is defined by a set of any one of P x-coordinates and any one of Q y-coordinates, where P and Q are integers of 2 or more. It suffices if they are arranged at P ⁇ Q positions, and the number of pins should be P ⁇ Q. Furthermore, it is not necessary for the pin insertion holes to be arranged in an array. There should be as many pins as there are holes.
- the plurality of pin insertion holes may be the same and only the x-coordinates may be different.
- the plurality of pin insertion holes only need to have different positions on the plane perpendicular to the z-direction, and the same number of pins as the pin insertion holes is sufficient.
- the housing 110 of the pin display device 100 has a substantially rectangular parallelepiped outer shape
- the outer shape of the housing is not limited to a substantially rectangular parallelepiped.
- the upper surface 110b of the housing 110 is a plane parallel to the lower surface 110a. It is also not essential that the top surface be planar. It is also not essential for the housing to have x-direction side surfaces and y-direction side surfaces.
- the material and shape of the container 1212 of the pot magnet 121 provided to all the pins 120 are the same, and the material, shape and strength of the permanent magnet 1211 of the pot magnet 121 provided to all the pins 120 are the same.
- at least one of the material and shape of the container 1212 and the material, shape and strength of the permanent magnet 1211 may differ from pin to pin.
- the container of the pot magnet for each pin may be used when magnetizing the magnetic sheet for the desired display.
- the poles 1211a of the permanent magnets 1211 of all the pot magnets 121 have the same pole (for example, N pole). may differ from However, if the poles of the permanent magnets exposed from the opening of the pot magnet container are different for each pin, the pot magnet container of each pin may have different poles when magnetizing the magnetic sheet for the desired display. It becomes necessary to be conscious of the polarity of the permanent magnet exposed from the opening of the magnetic sheet, making it difficult to create a magnetic pattern that magnetizes the magnetic sheet, and a pin display device as described later in the fourth embodiment. and the magnetic sheet cannot be used to change the relative position. Therefore, the poles of the permanent magnets exposed from the pot-magnet container openings of all the pins should be the same.
- the magnetic patterns may be magnetized after stacking a plurality of magnetic sheets, or the magnetic patterns may be magnetized on each of the magnetic sheets, and then the multiple magnetic sheets may be stacked. good too. That is, all the magnetic sheets (magnetic sheet materials) to be stacked are pre-magnetized with the same magnetic pattern (the same texture by the S pole and the N pole), and the same texture of all the magnetic sheets to be stacked is at the same position.
- a laminated magnetic sheet laminated magnetic sheet (laminated magnetic sheet) may be used as the magnetic sheet 200 .
- each magnetic sheet (magnetic sheet material) to be stacked is pre-magnetized with a different magnetic pattern (different textures due to S pole and N pole), and a laminate of these magnetic sheets (laminated magnetic sheet) is magnetic. You may make it use as the sheet
- the pin display system 300 of the first embodiment and the second embodiment performs display by placing the lower surface 110a of the housing 110 of the pin display device 100 and the upper surface 200a of the magnetic sheet 200 in contact with each other or close to each other. be. Therefore, in order to display various desired images on the pin display system 300, a plurality of (K sheets, K is an integer of 2 or more) magnetic sheets 200-k (k is an integer of 1 or more and K or less)
- K is an integer of 1 or more and K or less
- One surface is pre-magnetized with a magnetic pattern (texture by S pole and N pole) corresponding to each desired display, and one magnetic sheet is selected from K magnetic sheets 200-1 to 200-K.
- the upper surface 200a-k s of the magnetic sheet 200-k s may be placed in contact with or in close proximity to the lower surface 110a of the housing 110 of the pin display device 100.
- the user selects a desired magnetic sheet k s from the K magnetic sheets 200-1 to 200-K, and the pin display device 100 is attached to the upper surface 200a- ks of the selected magnetic sheet 200-ks .
- the lower surface 110a of the housing 110 may be placed in contact with or close to it. If a simpler expression is adopted, the selected magnetic sheet 200- ks is placed with the upper surface 200a- ks facing up, and the pin display device 100 is placed thereon.
- a magnetic sheet 200 - k s1 (k s1 is any one integer from 1 to K) having a magnetic pattern shown in FIG. Placing the bottom surface 110a of the housing 110 of the pin display device 100 in contact with or in close proximity to the top surface 200a-k s1 can cause the pin display device 100 to appear as shown in FIG. 9B.
- a magnetic sheet 200-k s2 (k s2 is any one integer between 1 and K and different from k s1 ) magnetized with the magnetic pattern shown in FIG.
- a selection unit which is a mechanical mechanism that selects the magnetic sheet k s corresponding to the selection information received by the input unit from among K, and a pin display device on the upper surface 200a- ks of the magnetic sheet 200- ks selected by the selection unit
- the pin display system may also include a placement portion, which is a mechanical mechanism that places the lower surface 110a of the housing 110 of the 100 in contact or proximity.
- the fourth embodiment will also explain how the pin display system of the present invention is used. Even if a plurality of magnetic sheets are not used as in the third embodiment, the upper surface 200a of the magnetic sheet 200 having a larger area than the lower surface 110a of the housing 110 of the pin display device 100 corresponds to each desired display at each different position. A magnetic pattern (texture with S and N poles) is magnetized in advance, and the pin display device is placed in a state where the bottom surface 110a of the housing 110 of the pin display device 100 and the top surface 200a of the magnetic sheet 200 are in contact or close to each other.
- a magnetic pattern texture with S and N poles
- pin display system 300 can display various desired images by changing the relative positions. Further, according to the pin display system 300 of the fourth embodiment, changes in the relative positions of the pin display device 100 and the magnetic sheet 200 can be used to display waves, patterns, shape changes, and the like.
- magnetic patterns corresponding to each desired display are previously magnetized at different positions on the upper surface of the magnetic sheet 200 having a larger area than the lower surface 110a of the housing 110 of the pin display device 100, and the housing of the pin display device 100 is magnetized.
- the user With the lower surface 110a of the body 110 and the upper surface 200a of the magnetic sheet 200 in contact or close proximity, the user can change the relative position of the pin display device 100 and the magnetic sheet 200 in the direction perpendicular to the z-direction.
- the magnetic sheet 200 is placed with the upper surface 200a facing upward, the pin display device 100 is placed thereon, and the pin display device 100 and/or the magnetic sheet 200 are held or held by the user. It should be supported and moved in a direction perpendicular to the z-direction.
- a mechanical mechanism for changing may be included in the pin display system.
- An example of this pin display system is shown in FIG.
- a pin display system 301 of FIG. 11 includes a pin display device 100 , a magnetic sheet 200 , a first roller 210 , a second roller 220 , a handle 230 and a support 240 .
- the magnetic sheet 200 is shaped like an endless belt.
- the first roller 210 and the second roller 220 are supported by a support 240, are arranged so that their respective axes are parallel to each other, and support the endless belt-shaped magnetic sheet 200 from the lower surface 200b side. .
- the handle 230 is fixed to the first roller 210 and rotates together with the first roller 210 .
- the pin display device 100 is supported by the support 240 in a state in which the bottom surface 110a of the housing 110 of the pin display device 100 is placed in contact with or close to the top surface 200a of the magnetic sheet 200 .
- the first roller 211 and the second roller 212 rotate in the same direction as the handle 230 , and the pin display device is displayed on the upper surface 200 a of the magnetic sheet 200 .
- the relative positions of the pin display device 100 and the magnetic sheet 200 can be changed in the x-direction perpendicular to the z-direction while the bottom surface 110a of the housing 110 of the device 100 is in contact with or adjacent to the bottom surface 110a.
- the display may end instantaneously and the pins 120 may move frequently in the z direction (that is, , frequent vertical movement of the pin 120), the magnetization of the same pole as the pole 1211a of the permanent magnet 1211 of the pot magnet 121 on the upper surface 200a of the magnetic sheet 200 is not a dot shape similar to the pole 1211a, It is preferable to form a belt shape whose length direction is the direction in which the relative position is changed.
- a pin display system 600 of the fifth embodiment includes a pin display device 500 and a magnetic sheet 200 as illustrated in FIG.
- the pin display device 500 of the fifth embodiment includes a housing 510 and twelve pins 520-XY.
- the pin display device 500 and the magnetic sheet 200 are in contact with the lower surface 510a of the housing 510 of the pin display device 500 and the upper surface 200a of the magnetic sheet 200. or placed in close proximity.
- the pin display system 600 of the fifth embodiment can also be used in the forms of use described in the third and fourth embodiments.
- the housing 510 of the pin display device 500 of the fifth embodiment has a bottom surface which is one plane, as shown in FIG. 13 as a top view and as shown in FIG. 510a, and three upper surfaces 510b-1, 510b-2, and 510b-3 which are planes parallel to the lower surface 510a in the positive direction of the z-direction with respect to the lower surface 510a and which are at different distances from the lower surface 510a.
- the upper surface 510b-1 is a surface corresponding to a partial area with the smallest y coordinate among partial areas obtained by dividing the lower surface 510a into three equal parts in the y direction by a distance z1 in the z direction.
- the upper surface 510b-2 is a surface corresponding to a partial area with the second smallest y coordinate among the partial areas obtained by dividing the lower surface 510a into three equal parts in the y direction by a distance z2 in the z direction.
- the upper surface 510b-3 moves the partial area with the third smallest y coordinate (that is, the partial area with the largest y coordinate) among the partial areas obtained by dividing the lower surface 510a into three equal parts in the y direction by a distance z3 in the z direction.
- This is the surface equivalent to the Distance z2 is greater than distance z1 and distance z3 is greater than distance z2 . That is, the distances z 1 , z 3 , and z 3 from the bottom surface 510a to the top surfaces 510b-1, 510b-2, and 510b- 3 increase as the y-coordinate increases.
- the housing 510 has 12 pin insertion holes 511-XY.
- the 12 pin insertion holes 511-XY are arranged in a 4 ⁇ 3 matrix of 4 at equal intervals in the x direction and 3 at equal intervals in the y direction.
- Each pin insertion hole 511-XY like the pin insertion hole 111 of the housing 110 of the first embodiment, is a hole for allowing a columnar pin 520-XY to be described later to move in the z direction. It is cylindrical with its axis in the z-direction.
- the upper surfaces 511b-X1 of the four pin insertion holes 511-X1 arranged at regular intervals in the x-direction are within the upper surface 510b-1 of the housing 510.
- the top surfaces 511b-X2 of the four pin insertion holes 511-X2 arranged at regular intervals in the x-direction are inside the top surface 510b-2 of the housing 510.
- the upper surfaces 511b-X3 of the four pin insertion holes 511-X3 arranged at regular intervals in the x-direction are within the upper surface 510b-3 of the housing 510.
- each pin insertion hole 511-XY is a plane perpendicular to the z-direction in the negative z-direction with respect to the top surface 511b-XY, that is, parallel to the bottom surface 510-a of the housing 510. It is flat. Between the lower surface 511a-XY of each pin insertion hole 511-XY and the lower surface 510-a of the housing 510, a gap 512-XY satisfying the conditions described in the first embodiment is provided. That is, the z-direction length dXY of all the gaps 512-XY has the same value d.
- the distance d XY between the lower surface 511a-XY of all the pin insertion holes 511-XY and the lower surface 510-a of the housing 510 is the same distance d . Therefore, the depth of each pin insertion hole 511-1Y (ie, the height of the cylinder of each pin insertion hole 511-1Y) is z 1 -d, and the depth of each pin insertion hole 511-2Y (ie, The cylindrical height of each pin insertion hole 511-2Y) is z 2 -d, and the depth of each pin insertion hole 511-3Y (that is, the cylindrical height of each pin insertion hole 511-3Y) is z 3 -d.
- Each pin 520-XY is inserted into a corresponding pin insertion hole 511-XY of the housing 510 (that is, a pin insertion hole having the same X value and Y value as the pin).
- Each pin 520-XY has a lower surface 520a-XY which is a circular plane at one end and an upper surface 520b-XY which is a plane parallel to the lower surface 510a-XY at the other end, as illustrated in FIG. It has a cylindrical outer shape.
- Each pin 520-XY is similar to pin 120 of the first embodiment, except with respect to length as described below. That is, the pot magnets 521-XY and spacers 522-XY of each pin 520-XY are the same as the pot magnets 121 and spacers 122 of the pin 120 of the first embodiment.
- each pin 520-XY (ie, the height of the cylinder of each pin 520-XY) is determined by the pin insertion hole 511-XY (ie, the X and Y values are the same as the pin). , or greater than the depth of the pin insertion hole 511-XY into which the pin is inserted. Therefore, the length L 1 of each pin 520-X1 is greater than or equal to z 1 -d, the length L 2 of each pin 520-X2 is greater than or equal to z 2 -d, and the length L 3 of each pin 520-X3 is greater than or equal to z 2 -d. is greater than or equal to z 3 -d.
- the plane formed by the upper ends of all the pins is inclined with respect to the z direction in a state where the influence of the external magnetic field is negligible.
- the length should be slightly greater than the depth of 511-XY into which the pin is inserted, even if it is greater than the depth of 511-XY into which the pin is inserted.
- each pin 520-X1 is z 1 -d or z 1 -d+ ⁇ '
- the length L 2 of each pin 520-X2 is z 2 - d or z 2 -d+ ⁇ '
- the length L 3 of each pin 520-X3 is z 3 -d or z 3 -d+ ⁇ '.
- the pin display system 600 described above is merely an example, and the pin display system 600 of the fifth embodiment can be modified in the same manner as described in the second embodiment for the pin display system 300 of the first embodiment. Deformation is possible.
- each pin display device 100 may have at least one pin insertion hole 111 and one pin 120 .
- the upper surface of the housing is configured such that J (J is an integer equal to or greater than 2) partial regions different from each other on the lower surface of the housing are separated from each other by different distances in the positive direction of the z direction.
- J planes corresponding to the moved object, J planes that are the upper surface of the housing are arranged so that the distance from the lower surface of the housing increases in order, and a plurality of pin insertion holes are arranged such that at least one pin is inserted from each of the J planes, which are the upper surfaces of the housing.
- the pin display device 500 of the fifth embodiment is a plurality of pin display devices 100 having housings 110 with different heights from the lower surface 110a of the upper surface 100b and the pins 120 corresponding to the housings 110. is arranged so that the lower surfaces 110a of all the pin display devices 100 lie on one plane perpendicular to the Z direction, and arranged so that the distance from the lower surface 110a to the upper surface 110b increases in order. It can be said that it is a form in which a plurality of housings 110 of the pin display device 100 are connected so as to form a configuration.
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Abstract
Description
本発明は、電源や配線を伴う電気的な制御機構を必要としないピンディスプレイを提供することを目的とする。
第1実施形態では、本発明のピンディスプレイシステムの一例について説明する。第1実施形態のピンディスプレイシステム300は、図1から図3に例示するように、ピンディスプレイ装置100と磁性シート200を含む。第1実施形態のピンディスプレイ装置100は、筐体110と25個のピン120を含む。以下、三次元空間において直交する各軸を図1と図2に例示するx軸とy軸とz軸として説明する。ピンディスプレイ装置100と磁性シート200は、ピンディスプレイ装置100の筐体110の下面110aと、磁性シート200の上面200aと、が接触または近接するように配置される。すなわち、ピンディスプレイ装置100は、筐体110の下面110aを磁性シート200の上面200aに接触または近接させてピンディスプレイシステム300として用いるためのものである。磁性シート200の上面200aは、磁性シート200が備える2つの面のうちの一方の面である。「近接」とは、磁性シート200の上面200aの上に紙や布などの薄膜状の物を置き、その薄膜状の物の上にピンディスプレイ装置100の筐体110の下面110aが薄膜状の物に接するように置く場合などのように、ピンディスプレイ装置100の筐体110の下面110aと磁性シート200の上面200aが接触していないものの、ピンディスプレイ装置100の筐体110の下面110aと磁性シート200の上面200aが接触している場合とほぼ同じように、ピンディスプレイ装置100が磁性シート200の磁場の影響を受ける状況のことである。なお、第1実施形態のピンディスプレイ装置100は25個のピン120を備えるが、各図の見易さを考慮して、ピンディスプレイ装置100が備える1個のピン120のみに参照番号を付してある。後述する各図における複数個のピン、複数個のピン挿入穴、ピンやピン挿入穴の各部などの参照番号についても同様である。ピンディスプレイシステム300は、ピン120のz方向の負方向(すなわち、図1から図3のz方向を示す矢印が指す方向とは逆方向)への移動に重力を利用することから、重力の方向をz方向の負方向として用いられるようにするのがよい。すなわち、ピンディスプレイシステム300は、x軸とy軸が水平面内の直交する2軸になるようにするのがよい。ただし、ピンディスプレイシステム300は、重力が少なくとも働く方向をz方向の負方向として用いられるようにすればよい。すなわち、x軸とy軸が水平面に対して若干傾いた面内の直交する2軸である場合でも、ピンディスプレイシステム300を用いることが可能である。
筐体110は、図4に例示するように、z方向と垂直な平面である下面110aと、下面110aに対してz方向の正方向にあり下面110aと平行な平面である上面110bと、を備える略直方体の外形を有し、25個のピン挿入穴111を備える。各ピン挿入穴111は、図5に例示するように、上面110b側からピン120が挿入される穴であり、略円柱形のピン120をz方向に移動可能とするための穴であり、中心軸がz方向である略円柱形である。略円柱形の各ピン挿入穴111の2つの平行な略円形の底面は、図7に例示するように、筐体110の上面110b内にある上面111bと、円柱形の上面111bに対してz方向の負方向にあるz方向と垂直な平面である下面111aである。25個のピン挿入穴111はz方向と垂直な面における位置が互いに異なり、具体的には、25個のピン挿入穴111は、x方向に等間隔に5個、y方向に等間隔に5個、の5×5の行列状に配置されている。筐体110の素材は、例えばプラスチックや樹脂や紙などのように、磁力線を遮断も低減もせず、磁力線の経路を制御せず、磁力線を発生しない素材である。各ピン挿入穴111の略円柱形の直径は、略円柱形のピン120がz方向には正方向にも負方向にも容易に移動可能であるものの、略円柱形のピン120がx方向やy方向にはほとんど移動しないように、ピン120の略円柱形の直径より僅かに大きな値として予め実験等により設定されたものである。
各ピン120は、図5に例示するように、筐体110の各ピン挿入穴111に挿入されるものであり、一方の端が略円形の下面120aであり、他方の端が下面110aと平行な平面である上面120bである、略円柱形の外形を有する。各ピン120は、一方の端にポット磁石121が容器(ポット)の開口部を外側に向けて備えられており、ポット磁石121が備えられた端がz方向の負方向に向けられて筐体110の各ピン挿入穴111に挿入されるものである。
ピンディスプレイ装置100は、ピンディスプレイ装置100が備える全てのピン120のうちの所望のピン120を、当該ピン120が備えるポット磁石121と磁性シート200の間に発生する磁力による反発力によってz方向の正方向に移動させることで、ピンディスプレイ装置100が備える全てのピン120の上面120bにより形成される三次元の点群により情報を表示する。ピンディスプレイ装置100によるz方向の表示可能範囲を大きくするためには、ピンディスプレイ装置100によるz方向の移動可能な範囲を大きくすればよく、ピンディスプレイ装置100が備える各ピン120が備えるポット磁石121が放出する磁場は強いほうがよい。ただし、ポット磁石121が放出する磁場をあまり強くしてしまうと、隣接するピン120に備えられたポット磁石121の間で発生する磁力が隣接するピン120相互の動きに影響してしまう。そこで、ポット磁石121が放出する磁場が別のピン120の動きに影響しないように、隣接するピン120の間隔を拡げる必要が生じる。ただし、隣接するピン120の間隔を拡げてしまうと、ピンディスプレイ装置の表示のx方向とy方向の表示の解像度が低下してしまう。したがって、隣接するピン120の間隔と各ピン120が備えるポット磁石121が放出する磁場の強さは、ピンディスプレイ装置の表示のx方向とy方向の表示の解像度と、ピンディスプレイ装置100によるz方向の表示可能範囲と、を考慮して決定される必要がある。具体的には、各ピン120のポット磁石121が放出する磁場は、隣接するピン120に備えられたポット磁石121の間で発生する磁力がピン120の動きに影響しない必要がある。言い換えると、隣接するピン挿入穴111の間隔は、隣接するピン挿入穴111に挿入されるピン120に備えられたポット磁石121の間で発生する磁力がピン120の動きに影響しない最短距離以上である必要がある。
上述したように、筐体110は、下面110aが磁性シート200の上面200aに接触または近接して配置されるものである。磁性シート200には、各ポット磁石121と磁性シート200の上面200aの間に発生する磁力による反発力によって、各ポット磁石121を備えた各ピン120がz方向への移動量が所望の大きさとなるように、上面200aの各ポット磁石121が対向する部分が着磁されている。磁性シート200は、書き換え可能な磁性シート、すなわち、各面の各部位を所定以上の強い磁界に晒すことでS極とするかN極とするかを任意に設定できる磁性シートである。書き換え可能な磁性シートの例は、フェライト磁性ゴムシートのように、粉末状の強磁性体と、磁力線を遮断も低減もせず、磁力線の経路を制御せず、磁力線を発生しない素材と、を混合してシート状に成形されたものである。
磁性シート200は局所的な磁極の向きが書き換え可能であるので、磁性シート200の上面200aとポット磁石121が接触したり、接触しないまでも相当近い距離まで近接したりすると、ポット磁石121が放出した磁場によって磁性シート200の上面200aのポット磁石121が対向する部分の磁極の向きが書き換えられてしまう。そうすると、ポット磁石121と磁性シート200の上面200aのポット磁石121が対向する部分の間に反発力が発生しなくなってしまう。その結果、ピン120が移動しなくなってしまい、ピンディスプレイ装置100が表示をしなくなってしまう。逆に、ポット磁石121と磁性シート200の上面200aが遠過ぎると、磁性シート200の上面200aに所望の着磁がされた状態であっても、各ポット磁石121と磁性シート200の上面200aの間に反発力が発生せずに、ピンディスプレイ装置100が所望の表示しなくなってしまう。これらのことから、図7に示す筐体110の断面図のように、筐体110の下面110aと筐体110の各ピン挿入穴111の下面111a(すなわち、各ピン挿入穴111の底)の間には、z方向の長さが、ポット磁石121に用いるのと同じポット磁石(すなわち、ポット磁石121と同じ磁場を放出するポット磁石)が放出する磁場により磁性シート200に用いるのと同じ磁性シート(すなわち、磁性シート200と同じ基材と同じ強磁性体と同じ混合比の磁性シート、磁性シート200と同種の磁性シート)の極性を書き換えない最短距離(以下、「第1最短距離」という)以上であり、かつ、ポット磁石121に用いるのと同じポット磁石(すなわち、ポット磁石121と同じ磁場を放出するポット磁石)と磁性シート200に用いるのと同じ磁性シート(すなわち、磁性シート200と同じ基材と同じ強磁性体と同じ混合比の磁性シート、磁性シート200と同種の磁性シート)の間で磁力が発生しなくなる最長距離以下である、z方向の長さを有する間隙112が設けられている必要がある。なお、ポット磁石121に用いるのと同じポット磁石と磁性シート200に用いるのと同じ磁性シートの間で磁力が発生しなくなる最長距離に間隙が近いほど、ピン120を大きく移動させることができなくなり、ピンディスプレイ装置100による表示のバリエーションが少なくなってしまう。したがって、この観点も考慮すると、間隙112のz方向の長さは、ポット磁石121に用いるのと同じポット磁石が放出する磁場により磁性シート200に用いるのと同じ磁性シートの書き換えが生じない最短距離またはその最短距離を僅かに超える長さ、すなわち、第1最短距離または第1最短距離を僅かに超える長さ、とするのがよい。
上述したように、磁性シート200には、各ポット磁石121と磁性シート200の上面200aの間に発生する磁力による反発力によって、各ポット磁石121を備えた各ピン120のz方向の正方向への移動量が所望の大きさとなるように、上面200aの各ポット磁石121が対向する部分が着磁されている。もし各ポット磁石121と磁性シート200の上面200aが接触しているのであれば、ピン120を持ち上げるのに最適な上面200aの磁気パタンは、対向するポット磁石121の下面121aと同じ磁気パタンである。しかし、各ピン120がz方向の正方向に全く移動していない状態であっても、各ポット磁石121の下面121aと磁性シート200の上面200aは、間隙112のz方向の長さdだけ離れている。また、各ピン120がz方向の正方向に所望の移動量だけ移動した状態では、各ポット磁石121の下面121aと磁性シート200の上面200aは、間隙112のz方向の長さdに各移動量を加えた長さだけ離れている。したがって、各ピン120の所望の移動量をDi(ただし、iは、各ピンを特定する番号であり、1以上25以下の整数)とすると、各ピン120をz方向の正方向に所望の移動量Diだけ移動させるためには、各ポット磁石121の下面121aと磁性シート200の上面200aの距離がdからd+Diまでの範囲内にあるときには、各ポット磁石121と磁性シート200の上面200aの間に発生する磁力が、各ピン120のz方向の負方向に働く重力より大きな反発力を生じさせるものである必要がある。
ピンディスプレイ装置100にピン120の上端の様々な高さでの表示をさせるためには、各ピン120のz方向の正方向への移動量を制御する必要がある。ただし、ピンディスプレイ装置100は、複数個のピン120の上端(上面120b)が形成する三次元の点群により情報を表示するものであるので、各ピン120のz方向の正方向への移動量の大きさを厳密に制御する必要はなく、各ピン120のz方向の正方向への移動量の相対的な大小を制御することで、複数個のピン120の上端の様々な高さでの表示を実現できる。各ピン120のz方向の正方向への移動量の相対的な大小は、磁性シートの上面側の三次元空間における磁束の空間的な広がりを考慮すれば、制御することができる。
ピンディスプレイ装置100に複数個のピン120の上端の高低の二値での表示をさせるためには、例えば、各ピン120のz方向の正方向への移動の有無を制御すればよい。各ピン120のz方向の正方向への移動の有無を制御するのであれば、磁性シート200の上面200aのうちの、各ピン120のポット磁石121に対向する部分には、各ポット磁石121を備えた各ピン120をz方向の正方向に移動させることが可能な反発力を、ポット磁石121それぞれと磁性シート200の上面200aの間に働かせるか否か、に対応する着磁がされていればよい。例えば、磁性シート200の上面200aのうちの、z方向の正方向への移動をさせるピン120のポット磁石121それぞれに対向する部分には、対向するポット磁石121の永久磁石1211の極1211aと同じ極(例えばN極)である第1の部分と、当該第1の部分を囲む部分であり極1211aとは逆の極(例えばS極)である第2の部分と、による磁気パタンが着磁されていればよい。なお、第2の部分は、第1の部分を完全に囲んでいてもよいし、例えば第1の部分を両側から挟むように、第1の部分を部分的に囲んでいてもよい。すなわち、磁性シート200の上面200aのうちの、z方向の正方向への移動をさせるピン120のポット磁石121それぞれに対向する部分には、対向するポット磁石121の永久磁石1211の極1211aと同じ極(例えばN極)の帯領域である第1の部分と、第1の部分の両側にあり、極1211aとは逆の極(例えばS極)である第2の部分と、によるストライプ状の磁気パタンが着磁されていてもよい。磁性シート200の上面200aのうちの、z方向の正方向への移動をさせないピン120のポット磁石121それぞれに対向する部分には、対向するポット磁石121の永久磁石1211の極1211aと同じ極(例えばN極)である第3の部分と、当該第3の部分を囲む部分であり極1211aとは逆の極(例えばS極)である第4の部分とによる磁気パタン、ではない磁気パタンが着磁されていればよい。例えば、z方向の正方向への移動をさせないピン120のポット磁石121それぞれに対向する部分には、例えば、対向するポット磁石121の永久磁石1211の極1211aとは逆の極(例えばS極)である部分と、当該部分を囲み、極1211aと同じ極(例えばN極)である部分と、による磁気パタンが着磁されていてもよいし、対向するポット磁石121の永久磁石1211の極1211aと逆の極(例えばS極)のみが着磁されていてもよいし、対向するポット磁石121の永久磁石1211の極1211aと同じ極(例えばN極)のみが着磁されていてもよい。なお、磁性シート200の上面200aのうちの何れのピン120のポット磁石121の直下にも周縁にも対向しない部分の着磁は任意である。
第1実施形態で説明したピンディスプレイシステム300はあくまでも一例であり、第2実施形態で説明する通りの様々な変形が可能である。
第1実施形態ではピンディスプレイ装置100が25個のピン120とピン挿入穴111を含む例を説明したが、この個数に限られない。すなわち、ピン挿入穴は、PとQを2以上の整数として、P個のx座標のうちの何れか1つのx座標とQ個のy座標のうちの何れか1つのy座標との組によるP×Q個の各位置に配置されていればよく、ピンはP×Q個あればよい。さらにいえば、ピン挿入穴がアレイ状に整列されている必要はなく、ピン挿入穴は、x座標が異なる複数個を含み、かつ、y座標が異なる複数個を含んでいればよく、ピン挿入穴と同数のピンがあればよい。また、用途次第では、z方向と垂直な1軸上での表示のみを行えばよい場合もあり、この場合には、例えば、複数個のピン挿入穴全てのx座標が同じであってy座標のみが異なっていてもよいし、複数個のピン挿入穴全てのy座標が同じであってx座標のみが異なっていてもよい。すなわち、複数個のピン挿入穴は、z方向と垂直な面における位置が互いに異なればよく、ピン挿入穴と同数のピンがあればよい。
第1実施形態ではピン120とピン挿入穴111が円柱形である例を説明したが、ピンとピン挿入穴の形状は、円柱に限られず、角柱などでもよく、ピンが、ピン挿入穴をz方向には正方向にも負方向にも容易に移動可能であるものの、x方向やy方向にはほとんど移動しないという条件を満たす形状であれば、どのような形状であってもよい。
第1実施形態ではピンディスプレイ装置100の筐体110が略直方体の外形を有する例を説明したが、筐体の外形は略直方体に限られない。例えば、第1実施形態では筐体110の上面110bが下面110aと平行な平面である例を説明したが、筐体の上面が筐体の下面と平行であることは必須ではなく、筐体の上面が平面であることも必須ではない。また、筐体がx方向の側面やy方向の側面を有することも必須ではない。
第1実施形態では全てのピン120が備えるポット磁石121の容器1212の素材及び形状が同じであり、全てのピン120が備えるポット磁石121の永久磁石1211の素材及び形状及び強さが同じである例を説明したが、容器1212の素材と形状と永久磁石1211の素材と形状と強さのうちの少なくとも何れかがピンごとに異なっていてもよい。ただし、前述した素材と形状と強さのうちの少なくとも何れかをピンごとに異ならせた場合には、所望の表示をするための磁性シートの着磁をする際に各ピンのポット磁石の容器の素材と形状と永久磁石の素材と形状と強さのうちの少なくとも何れかの異なりを意識する必要が生じてしまい、磁性シートに着磁する磁気パタンの作成の難易度が高くなり、また、第4実施形態で後述するようなピンディスプレイ装置と磁性シートとの相対位置を変化させる使い方ができなくなってしまう。したがって、全てのピンが備えるポット磁石の容器の素材と形状と永久磁石の素材と形状と強さは同じにしておくほうがよい。
第1実施形態では全てのポット磁石121の永久磁石1211の極1211aが同じ極(例えばN極)である例を説明したが、ポット磁石の容器の開口部から露出した永久磁石の極はピンごとに異なっていてもよい。ただし、ポット磁石の容器の開口部から露出した永久磁石の極をピンごとに異ならせた場合には、所望の表示をするための磁性シートの着磁をする際に各ピンのポット磁石の容器の開口部から露出した永久磁石の極性を意識する必要が生じてしまい、磁性シートに着磁する磁気パタンの作成の難易度が高くなり、また、第4実施形態で後述するようなピンディスプレイ装置と磁性シートとの相対位置を変化させる使い方ができなくなってしまう。したがって、全てのピンが備えるポット磁石の容器の開口部から露出した永久磁石の極は同じにしておくほうがよい。
第1実施形態ではピン120がポット磁石121を用いる例を説明したが、ピンが備える磁石がポット磁石であることは必須ではなく、容器を備えない磁石であってもよい。ただし、容器を備えない磁石の場合には、磁力線が容器の開口面に集中しないことから、ポット磁石を用いる場合よりもピンの間隔を広くする必要が生じ、ピンディスプレイ装置の表示のx方向とy方向の表示の解像度が低くなってしまう。したがって、ピンが備える磁石はポット磁石としたほうがよい。
第1実施形態では1枚の磁性シート200を用いる例を説明したが、磁性シートを1枚とするのは必須ではなく、複数枚の磁性シートを重ねて用いてもよい。その際、複数枚の磁性シートを重ねてから磁気パタンを着磁するようにしてもよいし、それぞれに磁性シートに磁気パタンを着磁してから複数枚の磁性シートを重ねて用いるようにしてもよい。すなわち、重ねられる全ての磁性シート(磁性シート材)には、同じ磁気パタン(S極とN極による同じテクスチャ)が予め着磁されており、重ねられる全ての磁性シートの同じテクスチャが同じ位置で重なるように積層したもの(積層磁性シート)を磁性シート200として用いるようにしてもよい。このようにすれば、磁性シートを1枚だけ用いる場合よりも、強い磁力が得られるため、ピンのz方向の正方向への移動量を大きくすることが可能となる。また、重ねられる各磁性シート(磁性シート材)には異なる磁気パタン(S極とN極による異なるテクスチャ)が予め着磁されており、これらの磁性シートを積層したもの(積層磁性シート)を磁性シート200として用いるようにしてもよい。このようにすれば、それぞれの磁気シートによる表示を足し合わせたような表示をすることが可能となる。
第3実施形態では、本発明のピンディスプレイシステムの利用形態について説明する。第1実施形態及び第2実施形態のピンディスプレイシステム300は、ピンディスプレイ装置100の筐体110の下面110aと磁性シート200の上面200aが接触または近接して配置されることで表示を行うものである。したがって、ピンディスプレイシステム300に所望の様々な表示をさせるためには、複数枚(K枚、Kは2以上の整数)の磁性シート200-k(kは1以上K以下の各整数)それぞれの一方の面に所望の各表示に対応する磁性パタン(S極とN極によるテクスチャ)を予め着磁しておき、K枚の磁性シート200-1~200-Kのうちから1枚の磁性シート200-ks(ksは1以上K以下のいずれか1つの整数)を選択可能としておき、選択された磁性シート200-ksの磁性パタンが予め着磁された面を上面200a-ksとして、磁性シート200-ksの上面200a-ksがピンディスプレイ装置100の筐体110の下面110aと接触または近接させて配置されるようにすればよい。例えば、K枚の磁性シート200-1~200-Kのうちから利用者が所望の磁性シートksを選択し、選択した磁性シート200-ksの上面200a-ksにピンディスプレイ装置100の筐体110の下面110aを接触または近接させて配置すればよい。より平易な表現を採用するのであれば、選択した磁性シート200-ksを上面200a-ksが上側になるよう置き、その上にピンディスプレイ装置100を置けばよい。
第4実施形態でも、本発明のピンディスプレイシステムの利用形態について説明する。第3実施形態のように複数枚の磁性シートを用いないでも、ピンディスプレイ装置100の筐体110の下面110aより広い面積の磁性シート200の上面200aの異なる位置それぞれに所望の各表示に対応する磁性パタン(S極とN極によるテクスチャ)を予め着磁しておき、ピンディスプレイ装置100の筐体110の下面110aと磁性シート200の上面200aとを接触または近接させた状態で、ピンディスプレイ装置100と磁性シート200の相対位置をz方向に垂直な方向に変化可能とされていれば、ピンディスプレイシステム300はこの相対位置の変化によって、所望の様々な表示をすることができる。また、第4実施形態のピンディスプレイシステム300によれば、ピンディスプレイ装置100と磁性シート200の相対位置の変化を用いて、波動、模様、形状変化などを表示することもできる。
外部の磁場がその影響を無視できる程度に小さい状態において、ピンディスプレイ装置の全ピンの上端が形成する平面がz方向に対して傾斜していてもよく、このために筐体の上側が階段状にされていてもよい。この形態を第5実施形態として、第1実施形態と異なる点を中心に説明する。以下では、Xを1以上4以下の各整数とし、Yを1以上3以下の各整数として、具体例を用いて説明する。第5実施形態のピンディスプレイシステム600は、図12に例示するように、ピンディスプレイ装置500と磁性シート200を含む。第5実施形態のピンディスプレイ装置500は、筐体510と12個のピン520-XYを含む。ピンディスプレイ装置500と磁性シート200は、第1実施形態のピンディスプレイ装置100と磁性シート200と同様に、ピンディスプレイ装置500の筐体510の下面510aと、磁性シート200の上面200aと、が接触または近接するように配置される。第5実施形態のピンディスプレイシステム600は、第1実施形態のピンディスプレイシステム300と同様に、第3実施形態と第4実施形態で説明した利用形態でも利用することができる。
第5実施形態のピンディスプレイ装置500の筐体510は、図13に上面図を例示し、図14に図13の破線に沿って切断した断面図を例示するように、1つ平面である下面510aと、下面510aに対してz方向の正方向にあり下面510aと平行な平面であり、下面510aからの距離が互いに異なる3個の上面510b-1、510b-2、510b-3を有する。上面510b-1は、下面510aをy方向に3等分した部分領域のうちのy座標が最も小さい部分領域をz方向に距離z1だけ移動したものに相当する面である。上面510b-2は、下面510aをy方向に3等分した部分領域のうちのy座標が2番目に小さい部分領域をz方向に距離z2だけ移動したものに相当する面である。上面510b-3は、下面510aをy方向に3等分した部分領域のうちのy座標が3番目に小さい部分領域(すなわち、y座標が最も大きい部分領域)をz方向に距離z3だけ移動したものに相当する面である。距離z2は距離z1より大きく、距離z3は距離z2より大きい。すなわち、下面510aから上面510b-1、510b-2、510b-3までの距離z1、z3、z3は、y座標が大きいほど大きい。
各ピン520-XYは、当該ピンに対応する筐体510のピン挿入穴511-XY(すなわち、Xの値とYの値がピンと同じであるピン挿入穴)に挿入されるものである。各ピン520-XYは、図15に例示するように、一方の端が円形の平面である下面520a-XYであり、他方の端が下面510a-XYと平行な平面である上面520b-XYである、円柱形の外形を有する。各ピン520-XYは、以下で説明する長さに関すること以外は第1実施形態のピン120と同様である。すなわち、各ピン520-XYのポット磁石521-XYやスペーサー522-XYに関することなどは、第1実施形態のピン120のポット磁石121やスペーサー122に関することと同様である。
以上で説明したピンディスプレイシステム600はあくまでも一例であり、第5実施形態のピンディスプレイシステム600についても第1実施形態のピンディスプレイシステム300に対して第2実施形態で説明したのと同様の様々な変形が可能である。
なお、本発明は上述の実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で適宜変更が可能であることはいうまでもない。
Claims (8)
- 筐体と複数個のピンを備えるピンディスプレイ装置であって、
重力が少なくとも働く方向をz方向の負方向として、前記筐体の下面を磁性シートの一方の面である上面に接触または近接させてピンディスプレイシステムとして用いるためのものであって、
前記筐体は、z方向と垂直な平面である前記筐体の前記下面と、前記筐体の前記下面に対してz方向の正方向にある前記筐体の上面と、前記ピンと同数のピン挿入穴を備え、
前記各ピン挿入穴は、前記筐体の前記上面から前記ピンが挿入される穴であり、
前記ピンと同数のピン挿入穴は、z方向と垂直な面における位置が互いに異なり、
前記筐体の素材は、磁力線を遮断も低減もせず、磁力線の経路を制御せず、磁力線を発生しない素材であり、
前記各ピンは、ポット磁石が容器の開口部を外側に向けて一方の端に備えられたものであり、前記ポット磁石が備えられた端がz方向の負方向に向けられて前記ピン挿入穴に挿入されるものであり、
前記各ポット磁石は、当該ポット磁石が備えられた前記ピンが前記ピン挿入穴に挿入されている状態において、当該ポット磁石と前記磁性シートの前記上面との間に発生する磁力による反発力により、当該ポット磁石が備えられた前記ピンをz方向の正方向に移動可能な磁場を放出するものであり、
隣接する前記ピン挿入穴の間隔は、当該隣接する前記ピン挿入穴に挿入される前記ピンの前記ポット磁石の間で発生する磁力が前記ピンの動きに影響しない最短距離以上であり、
前記ピン挿入穴の底と前記筐体の前記下面の間には、z方向の長さが、前記ポット磁石と同じ磁場を放出するポット磁石が放出する磁場によって前記磁性シートと同種の磁性シートの書き換えが生じない最短距離以上である間隙が設けられている
ことを特徴とするピンディスプレイ装置。 - 請求項1に記載のピンディスプレイ装置であって、
前記筐体の前記上面は、前記筐体の前記下面の互いに異なるJ個(Jは2以上の整数)の部分領域をz方向の正方向に互いに異なる距離だけ移動させたものに対応するJ個の平面であり、
前記筐体の前記上面であるJ個の前記平面は、前記筐体の前記下面からの距離が順に大きくなるように配置されており、
複数個の前記ピン挿入穴は、J個の前記平面それぞれから、少なくとも1つの前記ピンが挿入されるように配置されている
ことを特徴とするピンディスプレイ装置。 - 請求項1または2に記載のピンディスプレイ装置と、一方の面を前記ピンディスプレイ装置の前記筐体の前記下面と接触または近接させて用いる磁性シートと、を含むピンディスプレイシステムであって、
前記磁性シートの前記上面のうちの、z方向の正方向に移動させるピンの前記ポット磁石に対向する部分には、
当該ポット磁石の前記容器の前記開口部から露出している永久磁石の極と同じ極の第1の部分と、
前記第1の部分を囲む部分であり、当該ポット磁石の前記容器の前記開口部から露出している前記永久磁石の極と逆の極の第2の部分と、
による磁気パタンが着磁されており、
前記磁性シートの前記上面のうちの、z方向の正方向に移動させないピンの前記ポット磁石の極に対向する部分には、
当該ポット磁石の前記容器の前記開口部から露出している前記永久磁石の極と同じ極の第3の部分と、
前記第3の部分を囲む部分であり、当該ポット磁石の前記容器の前記開口部から露出している前記永久磁石の極と逆の極の第4の部分と、
による磁気パタンではない磁気パタンが着磁されている
ことを特徴とするピンディスプレイシステム。 - 請求項1または2に記載のピンディスプレイ装置と、一方の面が前記ピンディスプレイ装置の前記筐体の前記下面と接触または近接させて用いる磁性シートと、を含むピンディスプレイシステムであって、
前記磁性シートの前記上面のうちの、z方向の正方向に移動させる複数個のピンの前記ポット磁石それぞれに対向する部分には、
当該ポット磁石の前記容器の前記開口部から露出している永久磁石の極と同じ極の第1の部分と、
前記第1の部分を囲み、当該ポット磁石の前記容器の前記開口部から露出している前記永久磁石の極と逆の極の第2の部分と、
による磁気パタンが着磁されており、
z方向の正方向に移動させる複数個の前記ピンのうちのz方向の正方向への移動量を第1の移動量とするピンの前記ポット磁石に対向する部分に着磁されている磁気パタンと、
z方向の正方向に移動させる複数個の前記ピンのうちのz方向の正方向への移動量を第1の移動量とは異なる第2の移動量とする前記ピンの前記ポット磁石に対向する部分に着磁されている磁気パタンと、が異なる
ことを特徴とするピンディスプレイシステム。 - 請求項1または2に記載のピンディスプレイ装置と、一方の面が前記ピンディスプレイ装置の前記筐体の前記下面と接触または近接させて配置された磁性シートと、を含むピンディスプレイシステムであって、
前記磁性シートの前記上面は、前記ピンディスプレイ装置の前記筐体の前記下面より面積が大きく、
前記磁性シートの前記上面には、S極とN極によるテクスチャが予め着磁されており、
前記ピンディスプレイ装置の前記筐体の前記下面と前記磁性シートの前記上面とを接触または近接させた状態で、前記ピンディスプレイ装置と前記磁性シートの相対位置を、z方向に垂直な方向に変化可能とされている
ことを特徴とするピンディスプレイシステム。 - 請求項1または2に記載のピンディスプレイ装置と、複数枚(K枚、Kは2以上の整数)の磁性シートと、を含むピンディスプレイシステムであって、
K枚の前記磁性シートそれぞれの一方の面には、S極とN極によるテクスチャが着磁されており、
K枚の前記磁性シートの何れか1枚が選択可能とされており、
K枚の前記磁性シートから選択された1枚の磁性シートの前記テクスチャが着磁された面が、前記ピンディスプレイ装置の前記筐体の前記下面と接触または近接させて配置される
ことを特徴とするピンディスプレイシステム。 - 請求項3から6の何れかに記載のピンディスプレイシステムであって、
前記磁性シートは、複数枚の磁性シート材が積層されたものであり、
全ての磁性シート材には、S極とN極による同じテクスチャが予め着磁されており、
前記磁性シートは、全ての前記磁性シート材の同じテクスチャが同じ位置で重なるように積層されたものである
ことを特徴とするピンディスプレイシステム。 - 請求項3から6の何れかに記載のピンディスプレイシステムであって、
前記磁性シートは、複数枚の磁性シート材が積層されたものであり、
各磁性シート材には、S極とN極による異なるテクスチャが予め着磁されている
ことを特徴とするピンディスプレイシステム。
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KR20210040625A (ko) * | 2019-10-04 | 2021-04-14 | 엘지디스플레이 주식회사 | 3d 형상 구현 기능을 가진 햅틱 표시장치 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2025069361A1 (ja) * | 2023-09-29 | 2025-04-03 | 日本電信電話株式会社 | ピンディスプレイ装置、ピンディスプレイシステム |
WO2025069362A1 (ja) * | 2023-09-29 | 2025-04-03 | 日本電信電話株式会社 | 動作表示装置 |
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JPWO2023157287A1 (ja) | 2023-08-24 |
US20250095518A1 (en) | 2025-03-20 |
JP7647992B2 (ja) | 2025-03-18 |
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