JP6649335B2 - Magnetization method and magnetizing parts - Google Patents

Description

  The present invention relates to a technique for magnetizing a magnetic body.

  A technique for magnetizing a magnetic material is known (for example, see Patent Document 1).

JP 2011-119621A

  However, the prior art required a special device for magnetizing. An object of the present invention is to magnetize an arbitrary magnetic pattern without using a special device for magnetizing.

  A part that includes a magnet whose magnetic pole is placed opposite to the object at the mounting position of the cutter part of the cutting plotter, which is a device for making a cut corresponding to the texture information in the object based on the input texture information. Is attached, a magnetic sheet is arranged as the object, and the cutting plotter is operated to magnetize the magnetic sheet corresponding to the texture information.

  Thus, any magnetic pattern can be magnetized without using a special magnetizing device.

FIG. 1 is a conceptual diagram for explaining a functional configuration of the magnetizing device according to the embodiment. FIG. 2A and FIG. 2B are conceptual diagrams for describing the functional configuration of the magnetizing device of the embodiment. FIG. 3A is a perspective view illustrating a cutter part of the cutting plotter, and FIG. 3B is an exploded perspective view of the cutter part. FIG. 3C is a perspective view illustrating a magnetizing component, and FIG. 3D is an exploded perspective view of the magnetizing component. FIG. 4 is a graph illustrating the relationship between the shape of the magnet and the surface magnetic flux density. FIG. 5 is a diagram illustrating texture information including S-pole pattern information and N-pole pattern information. 6A and 6B are diagrams illustrating a magnetized magnetic sheet. FIG. 7 is a diagram exemplifying an operation of presenting a feeling of unevenness by two magnetic sheets. FIG. 8 is a diagram exemplifying an operation of presenting a feeling of unevenness by two magnetic sheets. 9A to 9D are diagrams illustrating a magnetized magnetic sheet. 10A to 10C are diagrams illustrating an operation of presenting a feeling of unevenness by two magnetic sheets. FIGS. 11A to 11D are diagrams for illustrating an attractive area ratio between two magnetic sheets. FIG. 12 is a diagram illustrating the relationship between the pitch of the magnetic pattern and the holding force and the attractive area ratio. FIGS. 13A to 13D are diagrams illustrating a magnetized magnetic sheet. 14A and 14B are diagrams illustrating a magnetized magnetic sheet. FIG. 15 is a diagram exemplifying a difference in the attractive area ratio between the stripe texture and the checker texture. FIG. 16A and FIG. 16B are diagrams respectively exemplifying the relationship between the pitch of the set of magnetic sheets on which the stripe texture is magnetized, the holding force, and the attractive area ratio. FIG. 17A and FIG. 17B are diagrams respectively exemplifying the relationship between the pitch of the set of magnetic sheets on which the checker texture is magnetized, the holding force, and the attractive area ratio. FIG. 18A and FIG. 18B are diagrams illustrating sheets superimposed on the base object. FIG. 19 is a diagram illustrating a base object. 20A to 20D are diagrams illustrating contact objects. 21A to 21C are diagrams illustrating contact objects. FIG. 22A and FIG. 22B are diagrams for explaining the relationship of the attractive area ratio between two magnetic sheets. FIG. 23 is a diagram illustrating the input device according to the embodiment. 24A to 24C are diagrams for illustrating the input device of the embodiment. FIG. 25 is a diagram illustrating the input device of the embodiment. 26A to 26C are diagrams for illustrating the input device of the embodiment. FIG. 27 is a diagram illustrating a magnetic braille block according to the embodiment. FIG. 28 is a diagram illustrating a shoe for magnetic braille blocks according to the embodiment. FIG. 29 is a diagram illustrating a white stick for a magnetic braille block according to the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
In this embodiment, a cutter component of a cutting plotter (also referred to as a “cutting machine”), which is a device for making a cut corresponding to the texture information on an object based on the input texture information, is replaced with a magnetizing component. By driving the cutting plotter, the magnetic sheet is magnetized (the magnetic sheet is magnetized).

<Structure>
As illustrated in FIGS. 1 to 3, the magnetizing apparatus 1 according to the present embodiment includes a magnetizing component 11, a cutter component mounting unit 12, a drawing head 13, an input unit 14, a storage unit 15, a control unit 16, and a driving unit. It has a portion 17 and is magnetized on the placed magnetic sheet 18. This magnetizing apparatus 1 is a component for magnetizing a cutter component 101 of a cutting plotter having a cutter component 101, a cutter component mounting unit 12, a drawing head 13, an input unit 14, a storage unit 15, a control unit 16, and a drive unit 17. 11 is replaced.

{Cutter part 101 and magnetizing part 11}
As illustrated in FIGS. 3A and 3B, the cutter component 101 includes a cutter unit 101a for cutting a target object, a cylindrical fixing unit 101b to which the cutter unit 101a is fixed, and a cap unit 11c. One end of the cutter unit 101a is a blade edge 101aa, and the other end is fixed to a fixing unit 101b. The cutter unit 101a may or may not be detachable from the fixed unit 101b. A through-hole 101ca is provided on the tip side of the cap portion 101c. The cap portion 101c can be mounted on the cutter portion 101a side of the fixed portion 101b. When the cap part 101c is mounted on the cutter part 101a side of the fixed part 101b, the cutting edge 101aa protrudes outside the cap part 101c through the through hole 101ca. A mounting area 101ba is provided on a side surface of an outer wall of the fixing portion 101b, and the mounting area 101ba can be fixed to a mounting position of the cutting plotter described above.

  As illustrated in FIGS. 3C and 3D, the magnetizing component 11 that is replaced by the cutter component 101 is a columnar magnet 11a for magnetizing an object (supported by the mounting mechanism, and A magnet having a structure in which a magnetic pole faces a target when mounted at a position), a cylindrical fixing portion 11b to which the magnet 11a is fixed (a mounting having substantially the same structure as a mounting portion at a mounting position of a cutter component). Mechanism), and a cap portion 11c. The magnet 11a is a permanent magnet such as a neodymium magnet. When a neodymium magnet is used as the magnet 11a, the surface magnetic flux density of the tip 11aa differs depending on the shape of the magnet 11a. Fig. 4 shows the surface magnetic flux density (Bs) [mT] at the center of the bottom surface of a cylindrical neodymium magnet having different diameters (Diameter [mm]) and lengths (Length [mm]). I do. As illustrated in FIG. 4, the surface magnetic flux density increases as the diameter of the magnet 11 a increases. However, if the diameter is too large, the magnetic flux density at the center decreases, and the resolution of the pattern that can be magnetized on the magnetic sheet 18 decreases. I do. For the same diameter, the longer the magnet 11a, the larger the surface magnetic flux density, but the length of the magnet 11a is limited due to the restriction as the magnetizing component 11 that can be replaced with the cutter component 101. As an example, a neodymium magnet having a diameter of 2 mm and a length of 10 mm can be used as the magnet 11a. The tip 11aa at one end of the magnet 11a is any magnetic pole (S pole or N pole), and the other end is fixed to the fixing part 11b. The magnet 11a may or may not be removable from the fixed part 11b. A through hole 11ca is provided on the tip side of the cap portion 11c. The cap portion 11c can be mounted on the magnet 11a side of the fixed portion 11b. When the cap portion 11c is mounted on the magnet 11a side of the fixed portion 11b, the tip portion 11aa of the magnet 11a projects outside the cap portion 11c through the through hole 11ca (the magnetic pole of the magnet 11a is arranged outside the cap portion 11c). . A mounting area 11ba is provided on a side surface of the outer wall of the fixing portion 11b, and the mounting area 11ba can be fixed to a mounting position of the cutting plotter described above.

  In this embodiment, the external shape of the fixing portion 11b is substantially the same as the external shape of the fixing portion 101b, and the arrangement and shape of the mounting region 11ba (the structure of the mounting mechanism) are also the same as those of the mounting region 101ba (the mounting position of the cutter part). (The part to be attached to the camera). The external shape of the cap portion 11c is preferably substantially the same as the external shape of the cap portion 101c, but these shapes may be different. It is desirable that the relative position of the tip 11aa with respect to the mounting region 11ba is substantially the same as the relative position of the cutting edge 101aa with respect to the mounting region 101ba. Preferably, when the cap portion 11c is attached to the fixed portion 11b, the length of the tip portion 11aa arranged outside the cap portion 11c is set outside the cap portion 101c when the cap portion 101c is attached to the fixed portion 101b. The length is substantially the same as the length of the blade edge 101aa to be arranged. For example, what replaced the cutter part 101a included in the cutter part 101 with the magnet 11a may be used as the magnetizing part 11. In this case, the fixing part 101b is the fixing part 11b, and the cap part 101c is the cap part 11c. In such a case, it is desirable that the shape of the cutter component 101 on the fixed portion 101b side and the shape of the magnetizing component 11 on the fixed portion 11b side are substantially the same. Thereby, the magnetizing component 11 can be generated from the known cutter component 101 without installing or processing a special spacer. Here, that α and β are substantially the same means that α and β are the same or α and β are close to each other.

{Cutter part mounting part 12 and drawing head 13}
Originally, when the mounting area 101ba of the cutter component 101 is fixed to the cutter component mounting section 12, the cutter component 101 is mounted on the drawing head 13. In this embodiment, instead of the cutter component 101, the mounting area 11ba of the magnetizing component 11 is fixed to the cutter component mounting section 12 (the mounting position of the cutter component), so that the magnetizing component 11 is mounted on the drawing head 13. (FIGS. 1 and 2B). The magnetizing component 11 attached to the cutter component mounting unit 12 is configured such that the tip 11aa (magnetic pole) of the magnet 11a faces the surface 18a of the magnetic sheet 18 (object) to be magnetized. Be placed. That is, the magnetizing component 11, which is a component including the magnet 11 a whose magnetic pole (S pole or N pole) faces the surface 18 a of the magnetic sheet 18, is attached to the cutter component mounting section 12. When the surface 18a of the magnetic sheet 18 is magnetized to the S pole, the tip 11aa of the magnet 11a is set to the N pole, and when the surface 18a of the magnetic sheet 18 is magnetized to the N pole, the tip 11aa of the magnet 11a is set to the S pole. . When it is necessary to perform S-pole magnetization and N-pole magnetization on the surface 18a of the magnetic sheet 18, the tip 11aa has a magnetizing component 11 including an N-pole magnet 11a (for S-pole magnetization). And a magnetizing component 11 (for magnetizing the N-pole) including the S-pole magnet 11a at the tip 11aa are required. If the magnet 11a can be attached to and detached from the fixed portion 11b, when the surface 18a of the magnetic sheet 18 is magnetized to the S-pole, the magnet 11a having the N-pole at the tip 11aa is attached to the fixed portion 11b, When magnetizing the N-pole on the surface 18a of the sheet 18, the magnet 11a having the S-pole at the tip end 11aa may be attached to the fixed portion 11b. Both ends of the magnet 11a may be different magnetic poles (S-pole and N-pole), and one end selected from the both ends may be the tip 11aa, and the other end may be fixed to the fixing portion 11b. That is, the magnet 11a may be reversible with respect to the fixed portion 11b, and it may be possible to select which one end (S pole or N pole) of the magnet 11a is to be the tip 11aa. As described later, the positions of the drawing head 13 and the magnetic sheet 18 are digitally controlled, and the relative position of the drawing head 13 with respect to the surface 18a of the magnetic sheet 18 can be changed. Note that a surface different from the surface 18a of the magnetic sheet 18 is magnetized to a magnetic pole different from the surface 18a. That is, magnetizing the surface 18a of the magnetic sheet 18 also means magnetizing the magnetic sheet 18 itself.

{Input unit 14, storage unit 15, control unit 16, and drive unit 17}
The input unit 14, the storage unit 15, the control unit 16, and the driving unit 17 have a functional configuration originally provided in the cutting plotter. The input unit 14 is an input interface, the storage unit 15 is a RAM (random-access memory) or a hard disk, and the drive unit 17 is a drive device including a motor, an actuator, and the like. The control unit 16 is configured such that a computer including a processor (hardware processor) such as a CPU (central processing unit) and a memory such as a random-access memory (RAM) and a read-only memory (ROM) executes a predetermined program. Or an integrated circuit.

<< magnetic sheet 18 >>
The magnetic sheet 18 is a sheet mainly made of a ferromagnetic material, such as a magnetic rubber sheet mainly made of a magnetic rubber, a magnetic plastic sheet mainly made of a magnetic plastic, and a magnetic metal sheet mainly made of a metal. And so on. When a ferromagnetic material is exposed to a strong magnetic field, the dipoles of the atoms align with the magnetic field, and the alignment remains after the magnetic field is removed. Once magnetized, the ferromagnetic material retains its pole orientation until a sufficiently strong magnetic field in the opposite direction is applied, a strong shock, or sufficient heating. In this embodiment, utilizing this feature, the magnetic sheet 18 is magnetized so as to be rewritable by the magnet 11a of the magnetizing component 11.

<Operation>
The magnetizing method of the present embodiment will be described. Texture information representing a pattern (magnetized pattern) for magnetizing the surface 18a of the magnetic sheet 18 is input to the input unit 14 of the magnetizing device 1 (FIG. 1). The texture information is two-dimensional data indicating which coordinates of the surface 18a of the magnetic sheet 18 are magnetized. When the magnetized pattern is for magnetizing the surface 18a of the magnetic sheet 18 to one of the magnetic poles (S pole or N pole) (when the pattern corresponds to only one magnetic pole), the texture information is It includes pattern information indicating a pattern magnetized in the magnetic pole. On the other hand, when the magnetized pattern is for magnetizing the surface 18a of the magnetic sheet 18 with both magnetic poles (S pole and N pole) (when the pattern corresponds to both magnetic poles), the texture information is one. Pattern information (a first pattern information representing a pattern corresponding to one magnetic pole) representing a pattern magnetized to a magnetic pole (for example, an S pole), and pattern information (a first pattern information representing a pattern magnetizing to the other magnetic pole (for example, an N pole)) (Second pattern information) representing a pattern corresponding to the magnetic pole. FIG. 5 illustrates a magnetization pattern 110 for magnetizing the surface 18a of the magnetic sheet 18 with both magnetic poles. As illustrated in FIG. 5, the magnetization pattern 110 includes a pattern 111 magnetizing the S pole and a pattern 112 magnetizing the N pole. The texture information in this case includes information indicating the pattern 111 and information indicating the pattern 112. The texture information may be vector-format image data created by drawing software, or such image data or converted raster-format image data (bitmap image data). The input texture information is stored in the storage unit 15. The magnetic sheet 18 is mounted on the magnetizing device 1. As a result, the tip portion 11aa (magnetic pole) of the magnet 11a of the magnetizing component 11 attached to the cutter component mounting portion 12 faces the surface 18a of the magnetic sheet 18.

  When the magnetizing device 1 as a cutting plotter is operated, the control unit 16 reads the texture information from the storage unit 15 and controls the driving unit 17 to change the relative position of the drawing head 13 with respect to the surface 18a of the magnetic sheet 18; The surface 18a of the magnetic sheet 18 is magnetized in a pattern corresponding to the texture information by the magnetic force of the tip 11aa of the magnet 11a (the magnetization corresponding to the texture information is performed on the surface 18a of the magnetic sheet 18). That is, the drive unit 17 can change the relative position of the tip 11aa of the magnet 11a with respect to the surface 18a of the magnetic sheet 18 by moving the drawing head 13 along at least one of the X axis and the Z axis. . Further, the drive unit 17 can change the relative position of the tip 11aa of the magnet 11a with respect to the magnetic sheet 18 by moving the magnetic sheet 18 along the Y axis. However, the X axis, the Y axis, and the Z axis are coordinate axes orthogonal to each other. An XY plane passing through the X axis and the Y axis is substantially parallel (for example, parallel) to the surface 18a of the magnetic sheet 18, and the Z axis is substantially orthogonal (for example, orthogonal) to the surface 18a of the magnetic sheet 18. When the relative position of the drawing head 13 with respect to the magnetic sheet 18 is changed along the X coordinate and / or the Y axis, the (X, Y) coordinate of the tip 11aa of the magnet 11a on the surface 18a of the magnetic sheet 18 may be changed. As a result, the magnetized position in the surface 18a of the magnetic sheet 18 can be changed. By changing the relative position of the drawing head 13 with respect to the magnetic sheet 18 along the Z coordinate, the distance between the surface 18a of the magnetic sheet 18 and the tip 11aa of the magnet 11a can be changed. The magnetization of the surface 18a of the magnetic sheet 18 is performed when the surface 18a of the magnetic sheet 18 and the tip 11aa of the magnet 11a come into contact with or approach each other. Therefore, the presence or absence of magnetization can be controlled by changing the distance between the surface 18a of the magnetic sheet 18 and the tip 11aa of the magnet 11a. The driving unit 17 changes the relative position between the drawing head 13 and the magnetic sheet 18 along the X axis, the Y axis, and the Z axis based on the texture information. Is magnetized on the surface 18a side. When the magnetized pattern is for magnetizing the surface 18a of the magnetic sheet 18 with both magnetic poles (S-pole and N-pole), the drive unit 17 applies the pattern corresponding to each magnetic pole to the magnetic sheet 18. The surface 18a is magnetized. When magnetization is performed based on the pattern magnetizing the S pole, the tip part 11aa uses the magnetizing component 11 including the N pole magnet 11a, and the driving unit 17 uses the drawing head 13 and the magnetic sheet 18 in accordance with the S pole pattern. Are changed along the X-axis, Y-axis, and Z-axis, and the S-pole pattern (for example, the pattern 111 in FIG. 5) is magnetized on the surface 18 a of the magnetic sheet 18. When magnetization is performed based on a pattern that magnetizes the N pole, the tip 11aa uses the magnetizing component 11 including the S pole magnet 11a, and the driving unit 17 uses the drawing head 13 and the magnetic sheet 18 in accordance with the N pole pattern. Is changed along the X-axis, Y-axis, and Z-axis, and the N-pole pattern (for example, the pattern 112 in FIG. 5) is magnetized on the surface 18 a of the magnetic sheet 18. That is, when the N pole (the other magnetic pole) of the magnet 11a included in the magnetizing component 11 faces the surface 18a of the magnetic sheet 18, the pattern of the S pole (for example, the pattern 111 in FIG. Magnetization (magnetization corresponding to the first pattern information) is performed on the surface 18 a of the magnetic sheet 18. On the other hand, when the S pole (one magnetic pole) of the magnet 11a included in the magnetizing component 11 faces the surface 18a of the magnetic sheet 18, the N pole pattern (for example, the pattern 112 in FIG. Magnetization (magnetization corresponding to the second pattern information) is performed on the surface 18 a of the magnetic sheet 18. The method of switching the magnetic pole of the tip 11aa is as described above.

The following two types can be assumed as the magnetization method.
Sliding method: a method of changing the (X, Y) coordinates of the drawing head 13 on the magnetic sheet 18 while keeping the magnetic pole of the tip 11aa of the magnet 11a in contact with or close to the surface 18a of the magnetic sheet 18.
Plotting method: While the magnetic pole of the tip 11aa of the magnet 11a is kept away from the surface 18a of the magnetic sheet 18, the (X, Y) coordinate of the drawing head 13 on the magnetic sheet 18 is changed, and the tip of the magnet 11a is magnetized at the coordinates to be magnetized. A method of bringing the magnetic pole of the portion 11aa into contact with or close to the surface 18a of the magnetic sheet 18.
The sliding method enables high-speed magnetization, but the orientation of the atomic dipole in the magnetized portion cannot be aligned perpendicular to the surface 18a, and the surface magnetic flux density may decrease. On the other hand, in the plotting method, the direction of the atomic dipole in the magnetized portion can be aligned perpendicular to the surface 18a, but much time is spent for magnetizing. The comparison results of the number of steps, the processing time, and the surface magnetic flux density when the same pattern is magnetized by the plot method of magnetizing at 2 mm intervals and 1 mm intervals and the sliding method are illustrated.
From this result, it can be seen that there is no significant difference in the maximum value of the surface magnetic flux density between the plotting method and the sliding method. Furthermore, it can be seen that the slide method is much smaller in the number of steps and processing time than the plot method. Further, when the magnet is magnetized at intervals of 2 mm using the plotting method, the minimum value of the surface magnetic flux density is significantly reduced. This is because the interval between the magnetized points is widened and the surface magnetic flux density is not uniform. From the above, it can be seen that it is preferable to magnetize using the slide method rather than the plot method.

<Features of this embodiment>
In this embodiment, an arbitrary magnetic pattern can be magnetized without using a special device for magnetizing.

[Modification of First Embodiment]
In the first embodiment, when the surface 18a of the magnetic sheet 18 is magnetized to both magnetic poles (S pole and N pole), the magnetic pole of the tip 11aa of the magnet 11a is manually switched. However, the magnetic pole of the tip 11aa of the magnet 11a may be automatically switched. That is, when the magnetization of the S-pole pattern (magnetization corresponding to the first pattern information) is performed on the surface 18a of the magnetic sheet 18, the N-pole (the other magnetic pole) of the magnet 11a included in the magnetizing component 11 is used. ) Is automatically opposed to the surface 18a of the magnetic sheet 18, and when the N-pole pattern is magnetized (magnetization corresponding to the second pattern information) on the surface 18a of the magnetic sheet 18, the magnetizing component 11 Of the magnet 11a (one magnetic pole) included in the magnetic sheet 18 may be automatically opposed to the surface 18a of the magnetic sheet 18. That is, when the fixing portion 11b (mounting mechanism) is mounted on the cutter component mounting portion 12 (mounting position), the polarity of the magnetic pole facing the surface 18a of the magnetic sheet 18 (object) may be switchable. For example, the magnetic pole of the tip portion 11aa of the magnet 11a may be automatically switched by physically reversing the magnet 11a of the magnetizing component 11. Alternatively, an electromagnet may be used as the magnet 11a, and the magnetic pole of the tip 11aa of the magnet 11a may be automatically switched by switching the direction of the current supplied to the electromagnet.

[Second embodiment]
In the second embodiment, unevenness (also referred to as “unevenness”) is perceived using two objects in which a pattern including an S pole and an N pole is magnetized. The haptic object of the present embodiment has a “first object” and a “second object”. The “first object” includes a “first surface”, and a “first texture” including an S-pole region and an N-pole region is magnetized on the “first surface”. The “second object” includes a “second surface”, and a “second texture” including an S-pole region and an N-pole region is magnetized on the “second surface”. However, the “acting subject”, which is a human or an animal other than a human, touches at least one of the “first object” and the “second object” and connects the “first surface” and the “second surface” to each other. An operation of changing the relative positional relationship between the “first surface” and the “second surface” while being in contact with or close to each other, and / or the relative operation between the “first surface” and the “second surface” By performing the operation of changing the positional relationship, the “operator” perceives the unevenness. In other words, the “operator” touches at least one of the “first object” and the “second object”, and keeps the “first surface” and the “second surface” in contact with or close to each other. An operation of changing the relative positional relationship between the “first surface” and the “second surface” and / or an operation of changing the relative positional relationship between the “first surface” and the “second surface” are performed. As a result, the shearing stress that the “operator” receives from at least one of the “first object” and the “second object” changes periodically. The change in the shear stress is a change in the direction of a straight line included in the plane along the “first surface” and the “second surface”, and the “acting subject” converts this change into the “first surface” and the “second surface”. It is perceived (illusion) as unevenness substantially perpendicular to the surface. Examples of the “first texture” and the “second texture” are regions in which regions magnetized to the S pole and regions magnetized to the N pole are alternately and periodically arranged. For example, the “first texture” and the “second texture” are formed by alternately and periodically arranged band-shaped regions magnetized on the S pole and band-shaped regions magnetized on the N pole. Alternatively, it may include a periodic substantially checkered area magnetized on the S pole and a periodic substantially checkered area magnetized on the N pole. The pattern of the “first texture” and the pattern of the “second texture” may be the same or different. Depending on the combination of the pattern of the “first texture” and the pattern of the “second texture”, the manner of change in the shear stress that the “operator” receives from at least one of the “first object” and the “second object” differs. Also, the sense of unevenness perceived by the “operator” is also different. In accordance with which direction the relative positional relationship between the “first surface” and the “second surface” is changed, the “acting subject” is changed from at least one of the “first object” and the “second object” The manner in which the shear stress changes may be different. In this case, depending on which direction the relative positional relationship between the “first surface” and the “second surface” is changed, the sense of unevenness perceived by the “operator” also differs. For example, the “first texture” and the “second texture” are formed by alternately and periodically disposing a tape-shaped region magnetized on the S pole and a tape-shaped region magnetized on the N pole. The “first surface” and the “second surface” are in contact with each other such that the longitudinal direction of the tape-shaped region of the “first texture” follows the longitudinal direction of the tape-shaped region of the “second texture”. Or performing an operation of changing the relative positional relationship between the “first surface” and the “second surface” while keeping the proximity, and / or performing the operation between the “first surface” and the “second surface” An operation of changing the relative positional relationship may be performed. In this case, depending on whether the relative positional relationship between the “first surface” and the “second surface” is changed in the longitudinal direction or the short direction of the tape-shaped region, the “operator” is determined. The way of changing the shear stress received from at least one of the “first object” and the “second object” is different, and the perceived unevenness is also different. In addition, an operation of changing the relative positional relationship between the “first surface” and the “second surface” and / or changing the relative positional relationship between the “first surface” and the “second surface” An example of the operation is any of the following (1) to (3), or a combination of some or all of the following.
(1) The “moving subject” directly moves at least one of the “first object” and the “second object” to change the relative positional relationship between the “first surface” and the “second surface”. motion.
(2) The “acting subject” indirectly moves the “first object” and “the second object” by moving an object interposed between the “acting subject” and at least one of the “first object” and the “second object”. An operation of moving at least one of the “second object” and changing a relative positional relationship between the “first surface” and the “second surface”.
(3) The “operator” drives a device that automatically moves at least one of the “first object” and the “second object”, and the relative position between the “first surface” and the “second surface” An operation that changes the relationship.
Further, “changing the relative positional relationship between the first surface and the second surface” means, for example, that the “second surface” is slid with respect to the “first surface”, On the other hand, the “first surface” is slid.

Hereinafter, a specific example of the present embodiment will be described with reference to the drawings.
The magnetic sheet 210 in FIG. 6A is a specific example of the “first object”, and the magnetic sheet 220 in FIG. 6B is a specific example of the “second object”. On one surface 211 (first surface) of the magnetic sheet 210, a texture (first texture) including an S-pole region 211a and an N-pole region 211b is magnetized. On the surface 211, a band-shaped (tape-shaped) region 211a magnetized to the S-pole and a band-shaped (tape-shaped) region 211b magnetized to the N-pole are alternately and periodically arranged. Similarly, a texture (second texture) including an S pole region 221a and an N pole region 221b is magnetized on one surface 221 (second surface) of the magnetic sheet 220. On the surface 221, band-shaped (tape-shaped) regions 221 a magnetized to the S-pole and band-shaped (tape-shaped) regions 221 b magnetized to the N-pole are alternately and periodically arranged. In this example, the width (pitch) of the region 211a in the short direction, the width (pitch) of the region 211b in the short direction, the width (pitch) of the region 221a in the short direction, and the width (pitch) of the region 221b in the short direction Pitch) is 2 mm. 6A and 6B, the difference in the magnetic poles of the region 211a, the region 211b, the region 221a, and the region 221b is represented by the difference in the graphic pattern. The region 211a, the region 211b, the region 221a, and the region 221b are not painted so as to be visually distinguishable. That is, these textures are magnetized patterns and are not visually distinct patterns (the same applies hereinafter). The magnetization of the magnetic sheets 210 and 220 is performed, for example, by the method described in the first embodiment. However, the magnetization of the magnetic sheets 210 and 220 may be performed by other methods (the same applies hereinafter).

  As illustrated in FIG. 7, FIG. 8 and FIG. 10A, the user (mainly the operation) arranges the magnetic sheet 210 so that the surface 211 faces upward, and the magnetic sheet 220 so that the surface 221 contacts the surface 211. Place. However, the magnetic sheet 220 is stacked on the magnetic sheet 210 such that the longitudinal direction D1 of the regions 211a and 211b of the magnetic sheet 210 follows the longitudinal direction D2 of the regions 221a and 221b of the magnetic sheet 220. For example, the magnetic sheet 220 is overlaid on the magnetic sheet 210 such that the longitudinal direction D1 is along the longitudinal direction D2 (in other words, the longitudinal direction D1 and the longitudinal direction D2 are substantially parallel to each other). The user touches the other surface 222 of the magnetic sheet 220 superimposed on the magnetic sheet 210 with the finger 200, and keeps the surface 211 and the surface 221 in contact with or close to (substantially in contact with) the surface 211 and the surface 221. To change the relative positional relationship between the two. In the examples of FIGS. 7 and 8, the relative positional relationship between the surface 211 and the surface 221 is changed in the XA direction, which is the short direction of the regions 211 a and 211 b of the magnetic sheet 210. Thereby, the shear stress in the XA direction that the user receives from the magnetic sheet 220 changes periodically. As a result, the user perceives a sense of unevenness in a direction substantially perpendicular to the surface 221. When the relative positional relationship between 211 and surface 221 is changed in the longitudinal direction of regions 211a and 211b of magnetic sheet 210, the shear stress received by the user does not change, and the user perceives the unevenness. do not do. Depending on which direction the relative positional relationship between the surface 211 and the surface 221 is changed, the manner in which the user changes the shear stress received from the magnetic sheet 220 is different, and the perceived unevenness is also different.

  9A and 9B are examples of magnetic sheets 230 and 250 having a different pitch from the magnetic sheet 210, and FIGS. 9C and 9D are examples of magnetic sheets 240 and 260 having a different pitch from the magnetic sheet 220. The magnetic sheets 230 and 250 are specific examples of the “first object”, and the magnetic sheets 240 and 260 are specific examples of the “second object”. On one side 231 (first surface) of the magnetic sheet 230, a band-shaped region 231a magnetized to the S-pole and a band-shaped region 231b magnetized to the N-pole are alternately and periodically arranged. Similarly, on one surface 241 (second surface) of the magnetic sheet 240, a band-shaped region 241a magnetized on the S-pole and a band-shaped region 241b magnetized on the N-pole are alternately and periodically arranged. Have been. On one side 251 (first surface) of the magnetic sheet 250, a band-shaped region 251a magnetized to the S pole and a band-shaped region 251b magnetized to the N pole are alternately and periodically arranged. Similarly, on one surface 261 (second surface) of the magnetic sheet 260, a band-shaped region 261a magnetized on the S-pole and a band-shaped region 261b magnetized on the N-pole are alternately and periodically arranged. Have been. However, the width of the region 231a in the short direction, the width of the region 231b in the short direction, the width of the region 241a in the short direction, and the width of the region 241b in the short direction are all 4 mm. The width of the region 251a in the short direction, the width of the region 251b in the short direction, the width of the region 261a in the short direction, and the width of the region 261b in the short direction are all 6 mm.

  When the magnetic sheet 230 is used as the “first object” and the magnetic sheet 240 is used as the “second object”, the user can use the magnetic sheets 210 and 220, the surfaces 211 and 221 and the areas 211a, 211b, 221a and 221b. Are replaced with the magnetic sheets 230 and 240, the surfaces 231 and 241 and the regions 231a, 231b, 241a and 241b, and the surfaces 231 and 241 are kept in contact with or close to each other as in the case where the magnetic sheets 210 and 220 are used. , An operation of changing the relative positional relationship between the surface 231 and the surface 241 and / or an operation of changing the relative positional relationship between the surface 231 and the surface 241 are performed, whereby a sense of unevenness is perceived (FIG. 10B). Similarly, when the magnetic sheet 250 is used as the “first object” and the magnetic sheet 260 is used as the “second object”, the user can use the magnetic sheets 210 and 220, the surfaces 211 and 221, the areas 211a and 211b, 221a, 221b are replaced with magnetic sheets 250, 260, surfaces 251, 261 and regions 251a, 251b, 261a, 261b, and surfaces 251 and 261 are brought into contact with or close to each other as in the case where magnetic sheets 210 and 220 are used. While keeping the state, the operation of changing the relative positional relationship between the surface 251 and the surface 261 and / or the operation of changing the relative positional relationship between the surface 251 and the surface 261 are performed. (FIG. 10C).

  In addition, any of the magnetic sheets 210, 230, and 250 is used as the “first object”, and any of the magnetic sheets 220, 240, and 260 is used as the “second object”. The pitch of the “second object” may be different.

  The pitch of the magnetic sheet used as the “first object” and the “second object” affects the shear stress perceived by the user, that is, the unevenness. First, as exemplified in FIGS. 10A to 10C, the spatial frequency of the shear stress perceived by the user, that is, the interval between the irregularities is used as the pitch of the magnetic sheet used as the “first object” and as the “second object”. It depends on the smaller one of the magnetic sheet pitches. For example, when the pitches of the magnetic sheets used as the “first object” and the “second object” are both 2 mm as shown in FIG. 10A, the interval of the unevenness perceived as shown in FIG. 10B is the “first object”. And the pitch of the magnetic sheet used as the “second object” is 4 mm, which is smaller than the perceived distance between the irregularities. Next, as illustrated in FIGS. 11A to 11D, the magnitude of the shear stress perceived by the user, that is, the strength of the unevenness is determined by the pitch of the magnetic sheet used as the “first object” and the “second object”. And the pitch of the magnetic sheet used as "." As illustrated in FIGS. 11A and 11B, when the pitches of the magnetic sheets used as the “first object” and the “second object” are the same (for example, the same 2 mm), the “first object” and the “first object” The difference between the maximum value (100%) and the minimum value (0%) of the attractive force area ratio between the magnetic sheets used as the "second object" is the maximum, and the intensity of the unevenness perceived by the user is high. Is the largest. As illustrated in FIGS. 11A and 11C, when the pitch of the magnetic sheet used as the “first object” is 6 mm and the pitch of the magnetic sheet used as the “second object” is 2 mm, The maximum value of the attractive area ratio is 66.67%, the minimum value is 33.33%, and the intensity of the unevenness perceived by the user is smaller than that of the magnetic sheet used as the “first object” and the “second object”. It is smaller than when the pitch is the same. Further, as illustrated in FIGS. 11A and 11D, when the pitch of the magnetic sheet used as the “first object” is 4 mm and the pitch of the magnetic sheet used as the “second object” is 2 mm, The maximum value and the minimum value of the attractive area ratio between them are both 50%, and the user does not perceive the unevenness.

Formulating the strength of the unevenness perceived by the user is as follows. The pitch of the magnetic sheet A used as a "second object" and _p A = n [mm], and the pitch _p B = m [mm] of the magnetic sheet B to be used as a "first object". However, it is assumed that n ≦ m. The attractive area ratio Ar _{(A, B) on the} surface where the two magnetic sheets A and B come into contact is expressed by a function f of the two pitches p _A and p _{B.
Ar (A, B) = f} (p A, p B) [%] (1)
However, the function f depends on the pattern magnetized on the magnetic sheets A and B. The holding force (H _{(A, B)} [g / cm ² ]) generated between the two magnetic sheets A and B is the surface magnetic flux density of Ar _{(A, B)} and the magnetic sheets A and B. It depends on Bs _A and Bs _B [mT] and can be expressed by a function g.
H _{(A, B)} = g (Ar _{(A, B)} , Bs _(A) , Bs _(B) ) [g / cm ² ] (2)
When the relative positional relationship between the two magnetic sheets A and B is changed while the surfaces of the two magnetic sheets A and B are in contact with or close to each other, the intensity V _{(A, B)} of the perceived unevenness is: maximum value _{H (a, B)} of H _{(a, B)} depends on the _MAX, expressed by the function h.
V _{(A, B)} = h (H _{(A, B) MAX} )
= H (g (Ar _{(A, B)} , Bs _(A) , Bs _(B) ) _MAX ) (∵ (2))
_{= H (g (f (p} A, p B), p A, p B) MAX) (∵ (1) and the case of using the same member, the surface magnetic flux density _Bs A, the Bs _B mainly pitch _p A, dependent respectively on p _B)
= F (p _A , p _B ) (3)

FIG. 12 illustrates the relationship between the pitches p _A and p _B of the magnetic sheets A and B, the holding force generated between the magnetic sheets A and B, and the maximum attractive area ratio (the maximum value of the attractive area ratio). is there. The vertical axis on the left side of FIG. 12 indicates the holding force, the vertical axis on the right side indicates the maximum attractive area ratio, and the horizontal axis indicates the pitches p _A and p _B of the magnetic sheets A and _B ((A) indicates the pitch p _A , ( B) represents the pitch p _B ). As described above, the strength of the unevenness perceived by the magnetic sheets A and B used as the “first object” and the “second object” changes according to the pitch of the magnetic sheets A and B.

  Another example of “first object” and “second object” is shown. FIGS. 13A to 14B show a state in which a texture including a region of a periodic substantially checkered pattern (substantially checker) magnetized on the S pole and a region of a periodic substantially checkered pattern polarized on the N pole is magnetized. In this example, the magnetic sheet is referred to as a “first object” and a “second object”. The magnetic sheets 210 ', 230', and 250 'in FIGS. 13A, 13C, and 14A are specific examples of the "first object", and the magnetic sheets 220', 240 ', and 260' in FIGS. 13B, 13D, and 14B. Is a specific example of the “second object”. The approximate checkerboard pattern means a checkerboard pattern or a pattern similar to a checkerboard pattern. That is, the substantially checkered pattern of the present embodiment is a pattern (checkered pattern) in which squares (or rectangles) magnetized with S poles and squares (or rectangles) magnetized with N poles are alternately and periodically arranged. ) As well as a pattern in which a pattern similar to a square (or rectangle) with the south pole magnetized and a pattern similar to a square (or rectangle) with the north pole magnetized are alternately and periodically arranged. Including. Examples of a pattern similar to a square (or rectangle) are a pattern in which the corners of a square (or rectangle) are rounded, a circle, an ellipse, and the like.

  As illustrated in FIG. 13A, one surface 211 ′ (first surface) of the magnetic sheet 210 ′ (first object) has a square region 211 a ′ with a rounded corner with an S pole magnetized and an N region. A substantially checkered texture (first texture) in which poles are magnetized and a square area 211b ′ with rounded corners is periodically and alternately repeated is magnetized. As illustrated in FIG. 13B, one surface 221 ′ (second surface) of the magnetic sheet 220 ′ (second object) includes a square region 221 a ′ with a magnetized S pole and a rounded corner, and N A substantially checkered texture (second texture) in which the poles are magnetized and the square regions 221b 'with rounded corners are periodically and alternately repeated is magnetized. The pitch of the substantially checkered pattern magnetized on the magnetic sheets 210 'and 220' (the width of each pattern that is periodically and alternately repeated) is 2 mm.

  As illustrated in FIG. 13C, one surface 231 ′ (first surface) of the magnetic sheet 230 ′ (first object) includes a square region 231 a ′ with a magnetized S pole and a rounded corner, and N A substantially checkered texture (first texture) in which poles are magnetized and a square area 231b 'with rounded corners is periodically and alternately repeated is magnetized. As illustrated in FIG. 13D, one surface 241 ′ (second surface) of the magnetic sheet 240 ′ (second object) has a square region 241 a ′ with a rounded corner with an S pole magnetized and an N region. A substantially checkerboard texture (second texture) in which poles are magnetized and a square area 241b ′ with rounded corners is periodically and alternately repeated is magnetized. The pitches of the substantially checkered patterns magnetized on the magnetic sheets 230 'and 240' are all 4 mm.

  As illustrated in FIG. 14A, one surface 251 ′ (first surface) of the magnetic sheet 250 ′ (first object) has a square region 251 a ′ with a magnetized S pole and a rounded corner, and N A substantially checkerboard texture (first texture) in which poles are magnetized and a square area 251b ′ with rounded corners is periodically and alternately repeated is magnetized. As illustrated in FIG. 14B, one surface 261 ′ (second surface) of the magnetic sheet 260 ′ (second object) includes a square region 261 a ′ with a rounded corner with an S pole magnetized and an N region. A substantially checkerboard texture (second texture) in which poles are magnetized and a square area 261b ′ with rounded corners is periodically and alternately repeated is magnetized. The pitches of the substantially checkered patterns magnetized on the magnetic sheets 250 'and 260' are all 6 mm.

  When the magnetic sheet on which the substantially checkerboard texture is magnetized as described above is referred to as a “first object” and a “second object”, the user can also use the “first surface” and the “first object” of the “first object”. An operation of changing the relative positional relationship between the “first surface” and the “second surface” is performed while the two surfaces are in contact with or close to each other, and / or the “first surface” and the “first surface” are changed. By performing an operation of changing the relative positional relationship between the two surfaces, the unevenness can be perceived. Note that the pitch of the “first object” and the pitch of the “second object” may be the same or different. In addition, a magnetic sheet magnetized with a substantially checkered texture is referred to as a “first object”, and a magnetic sheet magnetized with a texture in which the above-described band-like regions are alternately repeated is referred to as a “second object”. Good. Conversely, a magnetic sheet magnetized with a texture in which the above-mentioned band-shaped regions are alternately repeated is referred to as a “first object”, and a magnetic sheet magnetized with a substantially checkerboard texture is referred to as a “second object”. Is also good.

When the magnetic sheet on which the substantially checkered texture is magnetized is used as at least one of the “first object” and the “second object”, the magnetic sheet is also used as the “first object” and the “second object”. The pitch of the magnetic sheet affects the shear stress perceived by the user, that is, the feeling of unevenness. That is, the spatial frequency of the shear stress perceived by the user, that is, the interval between the irregularities, depends on the smaller of the pitch of the magnetic sheet used as the “first object” and the pitch of the magnetic sheet used as the “second object”. I do. Further, the magnitude of the shear stress perceived by the user, that is, the strength of the unevenness is determined by a combination of the pitch of the magnetic sheet used as the “first object” and the pitch of the magnetic sheet used as the “second object”. Dependent. Further, the above-described formulation of the perceived intensity of the unevenness is also applied to a case where a magnetic sheet on which a substantially checkered texture is magnetized is used as at least one of the “first object” and the “second object”. The strength V _{(A, B)} of the perceived unevenness that can be perceived is expressed by Expression (3). However, compared to the case where the magnetic sheet in which the texture in which the band-like regions are alternately repeated as described above is magnetized is referred to as a “first object” and a “second object”, a substantially checkered texture is magnetized. When the magnetic sheet is used as at least one of the “first object” and the “second object”, the maximum attractive area ratio between the magnetic sheets becomes smaller, and the perceived unevenness can be reduced. For example, as illustrated in FIG. 15, even when a magnetic sheet having a pitch of 2 mm and a magnetic sheet having a pitch of 6 mm are used, a texture (stripe texture) in which band-shaped regions are alternately repeated is magnetized. The maximum attractive area ratio when using a set of magnetic sheets is 66.67%, whereas the maximum attractive area ratio when using a set of magnetic sheets magnetized with a substantially checkered texture (checker texture) is as follows. 55.56%. Also, as illustrated in FIGS. 16A to 17B, regardless of whether a set of magnetic sheets magnetized with a stripe texture is used or a set of magnetic sheets magnetized with a checker texture, the “first object” is used. When the pitch of the magnetic sheet used is equal to the pitch of the magnetic sheet used as the "second object", the holding force and the maximum attractive force area ratio between the magnetic sheets become maximum. Here, in the case of the stripe texture, even when the pitch of the magnetic sheet used as the “first object” is different from the pitch of the magnetic sheet used as the “second object”, a certain size of the magnetic sheet is retained. Force and maximum attractive area ratio are obtained (FIGS. 16A and 16B). On the other hand, in the case of the checker texture, the holding force and the maximum attractive area ratio when the pitch of the magnetic sheet used as the “first object” is different from the pitch of the magnetic sheet used as the “second object” are different. , The pitches thereof are greatly reduced as compared with the case where they are the same (FIGS. 17A and 17B). In other words, in the case of the stripe texture, a certain degree of unevenness can be perceived even if the pitch of the two magnetic sheets is different, but in the case of the checker texture, the pitch of the two magnetic sheets is different. Then, it can be seen that the intensity of the perceived unevenness is significantly reduced. On the other hand, in the case of the stripe texture, the sense of unevenness can be perceived only when the relative position between the “first object” and the “second object” is changed in the one-dimensional direction. Can perceive an uneven feeling even when the relative position is changed in a two-dimensional direction.

<Features of this embodiment>
In the present embodiment, the unevenness can be perceived using two magnetic sheets, and various unevennesses can be expressed according to the texture and pitch magnetized for each.

[Modification of Second Embodiment]
As long as a sufficient magnetic force is applied between the pitch of the magnetic sheet used as the "first object" and the magnetic sheet used as the "second object", the two magnetic sheets are not in contact with each other. The relative positional relationship between the surfaces (the first surface and the second surface) may be changed. For example, a thin sheet of a non-magnetic material such as paper may be interposed between these two magnetic sheets. The user may be in contact with both the pitch of the magnetic sheet used as the “first object” and the magnetic sheet used as the “second object”, or may be in contact with only the magnetic sheet used as the “first object”. You may.

[Third embodiment]
The third embodiment is an application of the principle of the second embodiment. As described above, even if the texture magnetized on one magnetic sheet is the same, a different texture can be presented to the user if the texture magnetized on the other magnetic sheet overlaid thereon is different. This embodiment utilizes this feature. The haptic presentation according to the present embodiment includes a “base object”, a “first sheet”, a “second sheet”, a “first contact object”, and a “second contact object”. The “base object” includes a “first surface”, and a “first texture” including an S-pole region and an N-pole region is previously magnetized on the “first surface”. The “first sheet” is provided with a “first pattern” that can be visually recognized, and is superimposed on the “first surface” of the “base object”. The “second sheet” is provided with a visually recognizable “second pattern” different from the “first pattern” and is superimposed on the “first surface” of the “base object”. The “first contact object” includes a “second surface”, and a “second texture” including an S-pole region and an N-pole region is previously magnetized on the “second surface”. The “second contact object” includes a “third surface”, the “third surface” includes an S-pole region and an N-pole region, and includes a “third texture” different from the “second texture”. It is magnetized in advance. Here, the unevenness sensation felt from the “first contact object” when the “operator” performs the “first action” and the unevenness sensation sensed from the “second contact object” when the “second action” is performed Are different from each other. In other words, when the “acting subject” performs the “first action”, the way of changing the shear stress received from the “first contact object” and when the “acting subject” performs the “second action” The manner of change of the shear stress received from the “second contact object” is different from each other. However, the “first action” means that when the “first sheet” is overlaid on the “first surface” of the “base object”, the “acting subject” comes into contact with the “first contact object”. The operation of changing the relative positional relationship between the “first surface” and the “second surface” while keeping the “first surface” and the “second surface” close to each other, and / or This means an action of performing an operation of changing a relative positional relationship between the “first surface” and the “second surface”. The “second action” means that when the “second sheet” is overlaid on the “first surface” of the “base object”, the “acting subject” comes into contact with the “second contact object” An operation of changing the relative positional relationship between the “first surface” and the “third surface” while keeping the “first surface” and the “third surface” close to each other, and / or the “first surface” "And" the third surface ".

Hereinafter, a specific example of the present embodiment will be described with reference to the drawings.
FIG. 19 illustrates a base object 310 which is a “base object” of the present embodiment. The base object 310 of the present embodiment is a magnetic sheet, and one surface 310a (first surface) includes S pole regions 311a, 312a, 313a, 314a and N pole regions 311b, 312b, 313b, 314b. The texture (first texture) is magnetized in advance. The surface 310a of the base object 310 is divided into four regions 311, 312, 313, and 314. The region 311 is magnetized such that an S-pole band-shaped region 311a and an N-pole band-shaped region 311b are periodically and alternately repeated. The region 312 is magnetized such that an S-pole band-like region 312a and an N-pole band-like region 312b are periodically alternately repeated. The region 313 is magnetized such that an S-pole band-shaped region 313a and an N-pole band-shaped region 313b are periodically and alternately repeated. The region 314 is magnetized such that an S-pole band-like region 314a and an N-pole band-like region 314b are periodically and alternately repeated.

  FIG. 18A illustrates the sheet 341 that is the “first sheet” of the embodiment, and FIG. 18B illustrates the sheet 342 that is the “second sheet” of the embodiment. The sheets 341 and 342 are thin sheets of non-magnetic material such as paper and synthetic resin. The sheets 341 and 342 may be made of an opaque material, or may be made of a transparent material. On one surface of the sheet 341, a pattern (first pattern) that can be visually recognized is provided. On one surface of the sheet 342, a pattern (second pattern) that is visually recognizable and different from the pattern (first pattern) of the sheet 341 is provided. On one surface of the sheets 341 and 342 illustrated in FIGS. 18A and 18B, different images (for example, pictures and photographs) are drawn. In this example, the seat 341 represents a ski resort, and the seat 342 represents an off-road course. The sheets 341 and 342 can be superimposed on the surface 310a of the base object 310, respectively.

  FIGS. 20A and 20B illustrate a contact object 320 that is the “first contact object” of the present embodiment. The contact object 320 of the present embodiment is a magnetic sheet. An image (for example, a picture or a picture of a snowboarder) is drawn on one surface 322 of the contact object 320. On the other surface 321 (second surface) of the contact object 320, a texture (second texture) including the S-pole region 321a and the N-pole region 321b is magnetized in advance. The surface 321 of the contact object 320 of this embodiment is magnetized such that an S-pole band-shaped region 321a and an N-pole band-shaped region 321b are periodically and alternately repeated.

  FIGS. 20C and 20D illustrate a contact object 330 that is the “second contact object” of the present embodiment. The contact object 330 of the present embodiment is also a magnetic sheet. An image (for example, a picture or a picture of a car) is drawn on one surface 332 of the contact object 330. On the other surface 331 (third surface) of the contact object 330, a texture (third texture) including an S-pole region 331a and an N-pole region 331b is magnetized in advance. The texture magnetized on the surface 331 of the contact object 330 is different from the texture magnetized on the surface 321 of the contact object 320. On the surface 331 of the contact object 330 of the present embodiment, an S-pole band-shaped region 331a and an N-pole band-shaped region 331b are magnetized so as to be periodically and alternately repeated. However, the pitch of the texture magnetized on the surface 331 is different from the pitch of the texture magnetized on the surface 321 of the action object 320.

  When the sheet 341 (first sheet) is superimposed on the surface 310a of the base object 310, the contact object 320 is further superimposed on the sheet 341. The surface 321 of the contact object 320 faces the sheet 341, and the sheet 341 is arranged between the contact object 320 and the base object 310. The user (operator) touches the surface 322 of the contact object 320 with a finger or the like, and keeps the surface 310a (first surface) and the surface 321 (second surface) close to each other, while keeping the surface 310a (first surface) close to each other. An operation of changing the relative positional relationship between the surface 321 and the surface 321 (second surface), and / or changing the relative positional relationship between the surface 310a (first surface) and the surface 321 (second surface). Perform an action (first action). Thereby, the user perceives the unevenness from the contact object 320. As described above, this unevenness sensation is caused by the pattern consisting of the S pole region 321a and the N pole region 321b magnetized on the surface 321 of the contact object 320, and the surface of the base object 310 to which this pattern is close. The region of the S pole (any of the regions 311a, 312a, 313a, and 314a) magnetized in the region 310a (any of the regions 311, 312, 313, and 314) and the region of the N pole (the regions 311b and 312b) , 313b, and 314b).

  On the other hand, when the sheet 342 (second sheet) is superimposed on the surface 310a of the base object 310, the contact object 330 is further superimposed on the sheet 342. The surface 331 of the contact object 330 faces the sheet 342, and the sheet 342 is arranged between the contact object 330 and the base object 310. The user (operator) contacts the surface 332 of the contact object 330 with a finger or the like, and keeps the surface 310a (first surface) and the surface 331 (third surface) close to each other, while keeping the surface 310a (first surface) close to each other. An operation of changing the relative positional relationship between the surface 331 and the surface 331 (third surface), and / or changing the relative positional relationship between the surface 310a (first surface) and the surface 331 (third surface). Perform an action (second action). Thereby, the user perceives a feeling of unevenness from the contact object 330. As described above, the sense of unevenness also depends on the pattern composed of the S pole region 331a and the N pole region 331b magnetized on the surface 331 of the contact object 330, and the surface of the base object 310 to which this pattern is close. The region of the S pole (any of the regions 311a, 312a, 313a, and 314a) magnetized in the region 310a (any of the regions 311, 312, 313, and 314) and the region of the N pole (the regions 311b and 312b) , 313b, and 314b).

  Further, the texture including the S pole region 321a and the N pole region 321b magnetized on the surface 321 of the contact object 320 is composed of the S pole region 331a magnetized on the surface 331 of the contact object 330 and the N region. This is different from the texture including the polar region 331b. Therefore, the texture including the regions 321a and 321b magnetized by the contact object 320 approaches one of the regions α (one of the regions 311, 312, 313, and 314) of the surface 310a of the base object 310, and is used. The texture including the regions 331a and 331b magnetized on the contact object 330 is close to the same region α as the unevenness sense perceived when the user is performing the “first action”, Are different from each other. As described above, the texture including the regions 321a and 321b magnetized by the contact object 320 comes close to the region α, and the shear stress received from the contact object 320 when the user performs the “first action”. The manner of change and the texture including the regions 331a and 331b magnetized on the contact object 330 are close to the same region α, and the shear stress received from the contact object 330 when the user is performing the “second action” Is different from each other.

<Features of this embodiment>
As described above, even when the same base object 310 is used, different irregularities can be presented to the user depending on whether the contact object 320 or the contact object 330 is used. For example, depending on whether the contact object 320 or the contact object 330 is used, the strength and pitch of the unevenness sensation (the interval of the perceived unevenness) can be different, and the region where the unevenness sensation is not perceivable can be different. . By drawing different images corresponding to different feelings of unevenness on the sheet 341 and the sheet 342, different feelings of unevenness can be perceived according to the different images displayed on the sheets 341 and 342. . As described above, although the present embodiment uses only the permanent magnet, it is possible to change the sense of unevenness according to the image displayed on the sheet. Such a technique can be applied to, for example, a picture book that presents a different sense of unevenness depending on the sheet.

[Modification of Third Embodiment]
The “first texture” magnetized on the “first surface” of the “base object” includes a periodic substantially checkered area magnetized on the S pole and a periodic substantially checkered magnetized on the N pole. A “checker texture” including a pattern area may be used. Similarly, the “second texture” magnetized on the “second surface” of the “first contact object” may be a “checker texture”, or may be the “third surface” of the “second contact object”. The “third texture” to be magnetized may be a “checker texture”.

  For example, instead of the above-described base object 310, a base object 310 ′ illustrated in FIG. 21A may be used, and instead of the contact object 320, a contact object 320 ′ illustrated in FIG. 21B may be used. However, instead of the contact object 330, a contact object 330 'illustrated in FIG. 21C may be used.

  The base object 310 'is a magnetic sheet, and one surface 310a' (first surface) has S pole regions 311a ', 312a', 313a ', 314a', 315a 'and N pole regions 311b', 312b. The periodic checkerboard texture (first texture) including ', 313b', 314b ', and 315b' is magnetized in advance. The surface 310a 'of the base object 310' is partitioned into five regions 311 ', 312', 313 ', 314', and 315 '. The region 311 'is magnetized with a periodic substantially checkered texture consisting of an S-pole region 311a' and an N-pole region 311b '. The region 312 'is magnetized with a periodic substantially checkered texture consisting of an S-pole region 312a' and an N-pole region 312b '. The region 313 'is magnetized with a periodic substantially checkered texture composed of an S-pole region 313a' and an N-pole region 313b '. In the region 314 ', a periodic substantially checkerboard texture composed of an S-pole region 314a' and an N-pole region 314b 'is magnetized. The region 315 'is magnetized with a periodic substantially checkered texture consisting of an S-pole region 315a' and an N-pole region 315b '.

  The contact object 320 'is a magnetic sheet. An image is drawn on one surface of the contact object 320 ′, and the other surface 321 ′ (second surface) is a periodic substantially composed of an S pole region 321 a ′ and an N pole region 321 b ′. A checkerboard texture (second texture) is magnetized in advance. The contact object 330 'is a magnetic sheet. On one surface of the contact object 330 ', an image is drawn, and on the other surface 331' (third surface), there is formed a periodic approximate region including an S-pole region 331a 'and an N-pole region 321b'. Checkered texture (third texture) is magnetized in advance.

  Even in this case, the same effect as in the third embodiment can be obtained. However, as described in the second embodiment, instead of at least one of the base object 310, the contact object 320, and the contact object 330, the base object 310 ', the contact object 320', and the checker texture are magnetized. When used as at least one of the contact objects 330 ', the magnitude of the shear stress perceived by the user, that is, the intensity of the unevenness is reduced. As illustrated in FIG. 22A, when the base object A and the contact object B magnetized with the striped texture are used, the intensity of the unevenness perceived by the user when their pitches are the same is maximized. Even if the pitches are not the same, the shear stress perceived by the user is large to some extent, and there are combinations that perceive a sense of unevenness with a certain strength. On the other hand, as illustrated in FIG. 22B, when the base object A and the contact object B magnetized with the checker texture are used, the intensity of the unevenness perceived by the user when their pitches are the same is maximized. If the pitches are not the same, the shear stress perceived by the user becomes small, and the unevenness is hardly perceived. That is, when the base object A and the contact object B magnetized with the checker texture are used, the area where the unevenness is perceived can be limited.

[Fourth embodiment]
The fourth embodiment also applies the principle of the second embodiment. In the present embodiment, a description will be given of a “force sense presentation object” that combines the principle of the second embodiment with an input device and presents a user with a feeling of unevenness when inputting information without using an electromagnet.

  When the input device is a touch panel, the “force sense object” is attached, gripped, or supported by a “first object” arranged on the input surface of the touch panel and an “operator” performing an input operation on the touch panel. Second object ". The “first object” includes a “first surface”, and a “first texture” including an S-pole region and an N-pole region is previously magnetized on the “first surface”. The “second object” includes a “second surface”, and a “second texture” including an S-pole region and an N-pole region is previously magnetized on the “second surface”. The “first object” is, for example, a magnetic sheet arranged with one plate surface facing the input surface side of the touch panel, and the “first surface” is the other plate surface of the magnetic sheet. The “acting subject” that performs an input operation on the touch panel on which the “first object” is arranged on the input surface mounts, grips or supports the “second object”, and “the first surface” and “the second surface” Operation of changing the relative positional relationship between the “first surface” and the “second surface” while keeping or contacting each other, and / or the relative position between the first surface and the second surface By performing the operation of changing the positional relationship, the input operation on the touch panel is performed, and the “operator” feels a sense of unevenness. That is, when the “operator” performs such an operation, an input operation on the touch panel is performed, and the “shear stress” received by the “operator” from the second object changes periodically, thereby perceiving a sense of unevenness. I do.

  When the input device is an input device such as a mouse, the “force sense presentation” has a “first object” and a “second object”. The “first object” includes a “first surface”, and a “first texture” including an S-pole region and an N-pole region is previously magnetized on the “first surface”. The “second object” includes a “second surface”, and a “second texture” including an S-pole region and an N-pole region is previously magnetized on the “second surface”. The “second object” is mounted or provided on the “input device” held by the “operator”. The “first surface” is maintained by the operation subject operating the “input device” on which the “second object” is mounted or provided, with the “first surface” and the “second surface” being in contact with or close to each other. By performing an operation of changing the relative positional relationship between the “first surface” and the “second surface” and / or performing an operation of changing the relative positional relationship between the “first surface” and the “second surface”, The input operation to the “input device” is performed, and the “acting subject” feels the unevenness. In other words, when the “operator” performs such an operation, an input operation is performed on the input device, and the shear stress received from the input device by the operator changes periodically, thereby perceiving an uneven feeling.

Hereinafter, a specific example of the present embodiment will be described with reference to the drawings.
<When the input device is a touch panel>
FIGS. 23 and 24 show examples in which the principle of the second embodiment is combined with a touch panel.
As illustrated in FIG. 23, a magnetic sheet 410 as a “first object” is attached to an input surface (front surface) of a touch panel 401 of an electronic device 400 such as a smartphone terminal device or a tablet terminal device. One plate surface 412 of the magnetic sheet 410 is arranged toward the input surface side of the touch panel 401, and the other plate surface 411 (first surface) of the magnetic sheet 410 has an S-pole region 411a and an N-pole region 411b. (A first texture) including a is preliminarily magnetized. The “first texture” may include a plurality of regions having different pitches and patterns (such as a stripe texture and a checker texture).

  The “second object” illustrated in FIG. 24A is a glove 420 worn, gripped, or supported by the user, and has a region 421a of the S pole and a region 421a of the N pole on the surface 421 (second surface) of the belly portion of the finger. The texture (second texture) including the region 421b is magnetized in advance. The second texture may have a plurality of regions having different pitches and patterns (such as a stripe texture and a checker texture). In FIG. 24A, textures having different pitches and patterns for each finger are magnetized.

  The user wears, grasps, or supports the glove 420, and touches the magnetic sheet 410 arranged on the input surface of the touch panel 401 of the electronic device 400 with the texture portion including the S pole region 421a and the N pole region 421b. rub. Thus, the plate surface 411 (first surface) of the magnetic sheet 410 and the surface 421 (second surface) of the abdomen of the glove 420 are kept in contact with or close to each other, and The operation of changing the relative positional relationship between the surface 421 (second surface) and / or the operation of changing the relative positional relationship between the plate surface 411 (first surface) and the surface 421 (second surface) are performed. Then, an input operation is performed on the touch panel, and the user perceives a sense of unevenness. In response to this input operation, an image (for example, video, moving image, image) may be displayed from the touch panel 401 (output device), or sound may be output from a speaker (output device) of the electronic device 400. Thereby, according to the input operation, the sense of force can be presented, and the presentation content of the image and / or the sound can be changed. In the glove 420 illustrated in FIG. 24A, a texture having a different pitch or pattern is magnetized for each finger, so that a different sense of unevenness can be perceived depending on which finger operates the touch panel 401. Further, when a plurality of regions having different pitches and patterns are provided on the plate surface 411 (first surface) of the magnetic sheet 410, the user may have different unevenness depending on which finger operates which region. Can be perceived.

  The touch pen 430 illustrated in FIGS. 24B and 24C may be used as the “second object”. The touch pen 430 has a substantially cylindrical grip 435 and a substantially disk-shaped tip 436. One end of the grip portion 435 is fixed or integrated near the center of one surface 432 of the tip portion 436. On the other surface 431 (second surface) of the tip 436, a texture (second texture) including the S-pole region 531a and the N-pole region 531b is magnetized in advance. The user grips or supports the grip portion 435 of the touch pen 430 and rubs the magnetic sheet 410 arranged on the input surface of the touch panel 401 of the electronic device 400 with the surface 431 of the tip 436. Thus, the plate surface 411 (first surface) and the surface 431 (second surface) of the tip 436 are kept in contact with or close to each other, and the plate surface 411 (first surface) and the surface 431 are maintained. An operation of changing the relative positional relationship between the (second surface) and / or an operation of changing the relative positional relationship between the plate surface 411 (first surface) and the surface 431 (second surface) is performed. Then, an input operation is performed on the touch panel 401, and the user perceives a sense of unevenness. In response to this input operation, an image may be displayed from the touch panel 401 (output device), or sound may be output from a speaker (output device) of the electronic device 400. Thereby, according to the input operation, the sense of force can be presented, and the presentation content of the image and / or the sound can be changed.

  FIG. 25 illustrates an example in which game content is presented together with presentation of force sense in response to an input operation. As illustrated in FIG. 25, the magnetic sheet 210 illustrated in the second embodiment is attached to a lower part of an input surface (front surface) of a touch panel 401 ′ of an electronic device 400 ′ such as a smartphone terminal device or a tablet terminal device. One plate surface 212 of the magnetic sheet 210 is disposed toward the input surface side of the touch panel 401 ′, and the other plate surface 211 (first surface) of the magnetic sheet 210 has an S-pole region 211a and an N-pole region 211b. (A first texture) including the following is magnetized in advance. On the plate surface 211 of the magnetic sheet 210, the magnetic sheet 220 exemplified in the second embodiment is arranged. On one surface 221 (second surface) of the magnetic sheet 220, a texture (second texture) including an S pole region 221a and an N pole region 221b is magnetized. They are arranged to face each other. The user touches the other surface 222 of the magnetic sheet 220 superimposed on the magnetic sheet 210 with the finger 200, and keeps the surface 211 and the surface 221 in contact with or close to (substantially in contact with) the surface 211 and the surface 221. To change the relative positional relationship between the two. Thus, an input operation is performed on the touch panel 401 ', and the user perceives a sense of unevenness. In response to this input operation, the display content of the game content on the touch panel 401 '(output device) changes, and the sound output from the speaker 402' (output device) of the electronic device 400 'changes.

<When the input device is an input device such as a mouse>
FIGS. 26A to 26C show examples in which the principle of the second embodiment is combined with a mouse 500. A magnetic sheet 510 as a “second object” is fixed to the bottom surface 500a of the mouse 500. On one surface 511 (second surface) of the magnetic sheet 510, a “second texture” including an S-pole region 511a and an N-pole region 511b is magnetized in advance. Examples of the “second texture” include a stripe texture and a checker texture. The other surface 512 of the magnetic sheet 510 is fixed to the bottom surface 500a of the mouse 500.

  As the "first object", for example, magnetic sheets 210, 230, 250, 210 ', 230', 250 ', base objects 310, 310' and the like can be used. For example, when the magnetic sheet 210 is used as the “first object”, the user (subject) mainly arranges the magnetic sheet 210 such that the surface 211 (first surface) faces overhead, and places the mouse 500 on the surface 211. The mouse 500 is gripped so that the surface 511 (second surface) of the magnetic sheet 510 fixed to the mouse contacts. The user slides the mouse 500 along the surface 211 (first surface) of the magnetic sheet 210 so that the surface 211 (first surface) and the surface 511 (second surface) are in contact with or close to each other. While keeping this state, the relative positional relationship between the surface 211 (first surface) and the surface 511 (second surface) is changed. Thereby, the input operation to the mouse 500 is performed, and the user perceives the sense of unevenness. In response to this input operation, an image may be displayed from a display (output device) (not shown), an image may be projected from a projector (output device), or sound may be output from a speaker (output device). . Thereby, according to the input operation, the sense of force can be presented, and the presentation content of the image and / or the sound can be changed.

<Features of this embodiment>
In the present embodiment, when information is input to the input device, the user who inputs the information can be made to perceive a sense of unevenness.

[Fifth Embodiment]
The fifth embodiment also applies the principle of the second embodiment, in which the first object is fixed on the walking surface, and when the action subject wearing or holding the second object moves, a feeling of unevenness is presented, and the walking is performed. This gives the user the same tactile information as the Braille block. The “first object” of this embodiment can be fixed to the walking surface with the “first surface” facing the front side, and the “second object” can be “moving subject” with the “second surface” facing the outside. Is a member that can be mounted or gripped. As described above, the “first object” includes the “first surface”, and the “first texture” is magnetized on the “first surface” including the S-pole region and the N-pole region. , The “second object” includes a “second surface”, and the “second surface” is magnetized with a “second texture” including an S-pole region and an N-pole region. The “acting subject” wearing or gripping the “second object” is the “first object” fixed to the walking surface while the “first surface” and the “second surface” are in contact with or close to each other. The user walks on the “first surface” and changes the relative positional relationship between the “first surface” and the “second surface” to perceive the unevenness.

Hereinafter, a specific example of the present embodiment will be described with reference to the drawings.
FIG. 27 illustrates the magnetic sheets 610 and 620 as the “first object” of the present embodiment. On one surface 611 (first surface) of the magnetic sheet 610, a texture (first texture) including an S-pole region 611a and an N-pole region 611b is magnetized. The surface 611 (first surface) of the magnetic sheet 610 faces the front side, and the other surface 612 of the magnetic sheet 610 is fixed to the floor 600 (walking surface). Similarly, a texture (first texture) including an S-pole region 621a and an N-pole region 621b is magnetized on one surface 621 (first surface) of the magnetic sheet 620. The surface 621 (first surface) of the magnetic sheet 620 faces the front side, and the other surface 622 of the magnetic sheet 620 is fixed to the floor 600 (walking surface). Although the stripe texture is magnetized on the surfaces 611 and 621 in FIG. 27, the checker texture may be magnetized.

  FIGS. 28A and 28B illustrate a shoe 640 that is the “second object” of the present embodiment. One surface 632 of the magnetic sheet 630 is fixed to the sole 641 (second surface) of the shoe 640. On the other surface 631 of the magnetic sheet 630, a texture (second texture) including an S-pole region 631a and an N-pole region 631b is magnetized. As a matter of course, the pedestrian (the main subject) can wear the shoe sole 641 with the sole 641 facing outside.

  A pedestrian wearing the shoes 640 may place the surface 611 or 621 (the first surface) of the magnetic sheet 610 or 620 and the sole 641 (the second surface) on the floor 600 (the walking surface) while contacting or approaching each other. The user walks on the surface 611 or 621 (first surface) of the fixed magnetic sheet 610 or 620 and determines the relative positional relationship between the surface 611 or 621 (first surface) and the sole 641 (second surface). Perception of irregularities by changing.

  FIGS. 29A and 29B illustrate a white stick 650 as another example of the “second object”. The white stick 650 has a substantially cylindrical grip 655 and a substantially disk-shaped tip 656. One end of the grip 655 is fixed or integrated near the center of one surface 652 of the tip 656. On the other surface 651 (second surface) of the tip 656, a texture (second texture) including an S-pole region 651a and an N-pole region 651b is magnetized in advance. The pedestrian holding the white stick 650 keeps the surface 611 or 621 (first surface) of the magnetic sheet 610 or 620 and the surface 651 (second surface) of the distal end 656 of the white stick 650 in contact with or close to each other. Walking on the surface 611 or 621 (first surface) of the magnetic sheet 610 or 620 fixed to the floor 600 (walking surface), the surface 611 or 621 (first surface) and the surface 651 (second surface) The unevenness is perceived by changing the relative positional relationship between.

<Features of this embodiment>
In this embodiment, the pedestrian can perceive the unevenness without providing physical unevenness on the floor 600. Since there is no need to provide physical unevenness on the floor 600, there is an advantage that dust hardly accumulates on the floor 600. Further, using a stripe texture or the like, depending on which direction the relative positional relationship between the surface 611 or 621 (first surface) and the sole 641 or the surface 651 (second surface) is changed, the pedestrian ( The manner of change in the shear stress applied to the operation body) from the shoe sole 641 or the surface 651 may be different, so that a different uneven feeling may be perceived. Thereby, it is possible to present different feelings of unevenness depending on the traveling direction of the pedestrian.

[Other modified examples]
Note that the present invention is not limited to the above embodiment. For example, the “first object”, “second object”, “base object”, “first contact object”, “second contact object”, etc. may be made of a magnetic material other than the magnetic sheet. The “first object”, “second object”, “base object”, “first contact object”, “second contact object”, or the like may be an electromagnet. Further, in the above-described embodiment, an example in which the stripe texture and / or the checker texture is magnetized on the magnetic material has been described. May be magnetized. In the first embodiment, the cutter part of the cutting plotter is replaced with a magnetizing part, and the magnetic sheet is magnetized by driving the cutting plotter. However, instead of the cutting plotter, another device capable of moving the head in a planar direction, such as a pen printer, may be used. That is, a component such as a pen mounted on the head of such a device may be replaced with a component for magnetization, and the magnetic sheet may be magnetized by driving the device.

1 Magnetizer 11 Magnetizing parts 210, 220, 230, 240, 250, 260, 410, 510, 610 Magnetic sheets 310, 310 'Base objects 341 and 342 Sheet 401 Touch panel 420 Gloves 430 Touch pen 500 Mouse 600 Floor 640 Shoes 650 White Cane

Claims (3)

At the mounting position of the cutter part of the cutting plotter, which is a device for making a cut corresponding to the texture information on the object based on the input texture information, a magnetic pole is a part including a magnet facing the object. Magnetic parts are attached,
By arranging a magnetic sheet as the object and operating the cutting plotter, a magnetization corresponding to the texture information is performed on the magnetic sheet, a magnetization method ,
The texture information includes first pattern information indicating a pattern corresponding to one magnetic pole, and second pattern information indicating a pattern corresponding to the other magnetic pole,
When the other magnetic pole of the magnet included in the magnetizing component faces the surface of the magnetic sheet, performs magnetization corresponding to the first pattern information on the surface of the magnetic sheet,
Magnetizing corresponding to the second pattern information on the surface of the magnetic sheet when the one magnetic pole of the magnet included in the magnetizing component faces the surface of the magnetic sheet; Method. 2. The magnetizing method according to claim 1 , wherein
When performing magnetization corresponding to the first pattern information on the surface of the magnetic sheet, the other magnetic pole of the magnet included in the component for magnetization is automatically opposed to the surface of the magnetic sheet,
When performing the magnetization corresponding to the second pattern information on the surface of the magnetic sheet, the one magnetic pole of the magnet included in the magnetizing component is automatically opposed to the surface of the magnetic sheet. Magnetic method. A magnetizing component to be mounted at a mounting position of a cutter component of a cutting plotter, which is a device for making a cut corresponding to the texture information on an object based on the input texture information,
A mounting mechanism having substantially the same structure as a mounting portion of the cutter component to the mounting position,
A magnet that is supported by the mounting mechanism and has a structure in which a magnetic pole faces the object when the mounting mechanism is mounted at the mounting position,
A magnetizing component having
A magnetizing component, wherein the polarity of the magnetic pole facing the object can be switched when the mounting mechanism is mounted at the mounting position.