Electronic pens, and electronic devices / electronic pen sets

Abstract

To provide an electronic pen that can prevent slippage or detachment from electronic devices. [Solution] The electronic pen 10A has a predetermined mounting surface 28c that can be attached to and detached from an electronic device 12 which has an adhesive magnet 18ab inside its side surface 18aa. The electronic pen has magnets 34a and 34b that adhere to the adhesive magnet 18ab, a tip-side anti-slip portion 36a of a resin elastic material provided on the tip side of the magnets 34a and 34b and protruding from the mounting surface 28c, and a base-side anti-slip portion 38a of a resin elastic material provided on the base-side of the magnets 34a and 34b and protruding from the mounting surface 38c. When mounted on the electronic device 12, the tip-side anti-slip portion 36a and the base-side anti-slip portion 38b are in contact with the side surface 18aa, while the other parts are spaced apart from the side surface 18aa.

Description

Technical Field

[0001] The present invention relates to an electronic pen attachable to and detachable from an electronic device including a magnetic body, and to an electronic device-electronic pen set.

Background Art

[0002] For electronic devices such as notebook PCs, tablet PCs, and smartphones, a pen-shaped input device is sometimes used for input operations on a touch screen. Such an input device is preferably attachable to a housing when not in use and when the electronic device is carried. The electronic pen described in Patent Document 1 includes a magnet, and is configured to be attracted to a magnet or a metal plate inside the housing. If the magnetic force of the magnet of such an electronic pen is increased, the electronic pen can be attracted with a stronger force and is less likely to fall off.

Prior Art Literature

Patent Literature

[0003]

Patent Document 1

Summary of the Invention

Problem to be Solved by the Invention

[0004] However, since there may be magnetic cards and the like that are affected by magnetic force inside a bag during carrying or on a table or the like, there is a practical limit to setting a strong magnetic force. As a result, sufficient attraction force cannot be obtained, and the electronic pen may fall off when the electronic device is taken out from the bag.

[0005] The present invention has been made in view of the above problems, and an object of the present invention is to provide an electronic pen capable of suppressing displacement and falling off from an electronic device, and an electronic device-electronic pen set.

Means for Solving the Problem

[0006] To solve the above-mentioned problems and achieve the objective, an electronic pen according to a first aspect of the present invention is an electronic pen in which a predetermined mounting surface is attached to and detached from an electronic device having a magnetic material on the mounting surface, and comprises a magnet that is attracted to the magnetic material, a tip-side anti-slip portion of a resin elastic material provided on the tip side of the magnet and protruding from the mounting surface, and a base-side anti-slip portion of a resin elastic material provided on the base end side of the magnet and protruding from the mounting surface.

[0007] Furthermore, an electronic device and electronic pen set according to a second aspect of the present invention is an electronic device having a magnetic material within a mounting surface, and an electronic pen having a predetermined mounting surface that can be attached to and detached from the mounting surface, wherein the pen has a magnet that is attracted to the magnetic material, a tip-side anti-slip portion of a resin elastic material provided on the tip side of the magnet and protruding from the mounting surface, and a base-side anti-slip portion of a resin elastic material provided on the base end side of the magnet and protruding from the mounting surface. [Effects of the Invention]

[0008] According to the above embodiment of the present invention, it is possible to suppress displacement or detachment of the electronic pen from the electronic device. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a perspective view of an electronic device equipped with an electronic pen according to a first embodiment of the present invention. [Figure 2] Figure 2 is a side view of an electronic pen according to the first embodiment. [Figure 3] Figure 3 is a perspective view of an electronic pen according to the first embodiment. [Figure 4] Figure 4 is an enlarged side view of the base end of the electronic pen according to the first embodiment. [Figure 5] Figure 5 is a schematic side view showing the tip of an electronic pen according to the first embodiment. [Figure 6] Figure 6 is a schematic perspective view showing the base end of an electronic pen according to the second embodiment. [Figure 7]Figure 7 is a schematic perspective view showing the base ends of the electronic pen according to the third embodiment, the electronic pen according to the fourth embodiment, and the electronic pen according to the fifth embodiment. [Figure 8] Figure 8 is a schematic perspective view showing the base end of an electronic pen according to the sixth embodiment. [Figure 9] Figure 9 is a table showing experimental results investigating the magnitude of the force that causes an electronic pen to shift or detach from the side of an electronic device. [Modes for carrying out the invention]

[0010] Embodiments of the electronic pen according to the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to these embodiments.

[0011] Figure 1 is a perspective view of an electronic device 12 equipped with an electronic pen 10A according to a first embodiment of the present invention. The electronic pen 10A and the electronic device 12 constitute an electronic device / electronic pen set 14, but the electronic pen 10A may be optional in the sales and distribution format. In this embodiment, a notebook PC is exemplified as the electronic device 12, but a desktop PC, tablet PC, LCD tablet, drawing tablet, smartphone, etc. may also be used.

[0012] The electronic device 12 has a configuration in which the main body housing 16 and the display housing 18 are rotatably connected by a pair of left and right hinges 20 provided on their adjacent edges. The main body housing 16 and the display housing 18 are flat and somewhat horizontally elongated rectangles. The main body housing 16 houses the main board, thermal module, battery, etc. The display housing 18 has a configuration in which the display 22 is surrounded by a frame housing 24 that is integrated with the rear cover. The display 22 is a touch panel type. The type of display 22 is not particularly limited, but examples include digitizer, electrostatic generation type, capacitive type (passive type, active type), pressure-sensitive type, and electromagnetic induction type. Bezels 26 are provided on all four sides of the display 22. The frame housing 24 and bezels 26 are made of a magnetic material such as resin.

[0013] An electronic pen 10A can be attached to the right vertical edge 18a of the display housing 18, but it may also be attachable to the left vertical edge 18b and the horizontal edge 18c. The electronic pen 10A may also be attachable to the main body housing 16. There may be one or a plurality of attachment locations. The vertical edges 18a, 18b and the horizontal edge 18c are basically longer than the electronic pen 10A.

[0014] The side surface 18aa of the vertical edge 18a serves as the attachment target surface for the electronic pen 10A. In the present embodiment, the surface of the frame housing 24 including the side surface 18aa is rubber-coated (friction coefficient μ: 0.8 to 1.2), but is not limited thereto, and may be an aluminum alloy anodized film (μ: 0.3 to 0.6) or a rough-textured surface of PC-ABS resin (μ: 0.4 to 0.7). An explicit mark in the shape of a pen or a recess may be provided on the attachment target surface of the electronic pen 10A. The side surface 18aa is basically a flat surface having a width equivalent to that of the electronic pen 10A, but may be slightly curved or may be formed with streak patterns. Two attracting magnets (magnetic bodies) 18ab are provided inside the side surface 18aa at positions slightly spaced apart in the vertical direction. The two attracting magnets 18ab are basically identical. The attracting magnets 18ab are located inside the side surface 18aa, and may be exposed as long as they do not protrude from the side surface 18aa.

[0015] Figure 2 is a side view of the electronic pen 10A. Figure 3 is a perspective view of the electronic pen 10A. The electronic pen 10A is a pointing device corresponding to the display 22, and can be compatible with the digitizer, electrostatic generation type, capacitive type, pressure-sensitive type, electromagnetic induction type and the like exemplified above.

[0016] In terms of appearance, the electronic pen 10A has substantially the same shape as a general writing instrument, and includes a columnar portion 28, a pointing action portion 30a having a shape that reduces in diameter on the tip side relative to the columnar portion 28, and a proximal end cap 32. A switch or the like may be provided on the electronic pen 10A.

[0017] In the description of the electronic pen 10A, with the columnar portion 28 as a reference, the longitudinal direction is defined as the X direction, the side of the pointing acting portion 30a is taken as the distal end, and the opposite side thereof is taken as the proximal end. The distal end is the pen tip side, defined as the X1 direction, and the proximal end is the pen tail side, defined as the X2 direction. Further, a direction orthogonal to the X direction, that is, the pen width direction is defined as the Y direction.

[0018] The columnar portion 28 corresponds to a manually gripped portion, and has a diameter (Y width) and a length (X width) suitable for gripping. Since the distal end of the pointing acting portion 30a needs to be thin enough to enable coordinate designation on the display 22, the pointing acting portion 30a has a shape whose diameter is reduced from the columnar portion 28. The proximal end cap 32, for example, covers an internal charging terminal.

[0019] The columnar portion 28 includes a cylindrical portion 28a and a mounting base 28b formed along the X direction. In this embodiment, the diameter of the cylindrical portion 28a is set to 6 mm. The mounting base 28b forms a planar mounting surface 28c. The mounting surface 28c is a surface that is attached to and detached from the side surface 18aa of the electronic device 12, and is basically a flat surface, but may be slightly curved or have streak patterns formed thereon. The mounting base 28b is sufficiently low and does not hinder gripping of the columnar portion 28. When the columnar portion 28 is a hexagonal prism, a quadrangular prism or the like, one surface thereof may be used as the mounting surface 28c. A planar portion obtained by forming the columnar portion 28 into a so-called D-cut shape may be used as the mounting surface 28c. The cylindrical portion 28a and the mounting surface 28c do not need to be clearly distinguishable.

[0020] Two magnets 34 are provided inside the mounting surface 28c of the electronic pen 10A at positions slightly separated from each other in the X direction. The magnets 34 are located inside the mounting surface 28c, and may be exposed as long as they do not protrude from the mounting surface 28c. The distance between the two magnets 34 is equal to the distance between the two attracting magnets 18ab. The magnetic pole directions of the magnets 34 and the attracting magnets 18ab are configured to attract each other.

[0021] One of the magnets 34, magnet 34a, is located slightly towards the tip of the columnar portion 28 in the X direction, while the other magnet 34b is located closer to the base. The arrangement of the magnets 34 follows the layout requirements of the electronic pen 10A, but it is preferable that they are reasonably far apart from each other. Magnets 34a and 34b are basically the same. There may be three or more magnets 34 and suction magnets 18ab, as long as they are arranged correspondingly to each other. There may be one magnet 34 and one suction magnet 18ab each, as long as they are long enough in the X direction.

[0022] The electronic pen 10A contains a battery, control unit, communication unit, etc. However, the electronic pen according to the present invention is not limited by electromagnetic configurations other than the magnet 34.

[0023] The mounting surface 28c of the electronic pen 10A is provided with a tip-side anti-slip portion 36a and a base-side anti-slip portion 38a. The tip-side anti-slip portion 36a and the base-side anti-slip portion 38a are made of a resin elastic material, such as rubber, PE (polyethylene), TPU (thermoplastic polyurethane), or silicone. In the experiment shown in Figure 9, which will be described later, silicone was used. The tip-side anti-slip portion 36a and the base-side anti-slip portion 38a have a symmetrical shape in the X direction. The tip-side anti-slip portion 36a and the base-side anti-slip portion 38a can be manufactured at low cost.

[0024] The tip-side anti-slip portion 36a is provided at least on the tip side of the magnet 34a and protrudes from the mounting surface 28c. The base-side anti-slip portion 38a is provided at least on the base side of the magnet 34b and protrudes from the mounting surface 28c. In this embodiment, the tip-side anti-slip portion 36a is provided near the tip of the columnar portion 28, and the base-side anti-slip portion 38a is provided near the base end of the columnar portion 28.

[0025] Therefore, the tip-side anti-slip portion 36a is provided at a location at least a certain distance from the magnet 34b, and the base-side anti-slip portion 38a is provided at a location at least a certain distance from the magnet 34a. Furthermore, if the combined magnetic absorption force of magnets 34a and 34b is equivalent to acting on its center of action C, then the base-side anti-slip portion 38a and the tip-side anti-slip portion 36a are set at a certain distance from the center of action C.

[0026] Since the tip-side anti-slip portion 36a and the base-side anti-slip portion 38a protrude from the mounting surface 28c, they come into contact with the side surface 18aa, while the other parts are spaced apart from the side surface 18aa. In other words, there is a narrow gap 40 between the tip-side anti-slip portion 36a and the base-side anti-slip portion 38a, between the mounting surface 28c and the side surface 18aa.

[0027] Figure 4 is an enlarged side view of the base end of the electronic pen 10A. The base end anti-slip portion 38a has a triangular shape in side view, with a gentle slope toward the base and increasing protrusion amount, and the protruding top portion 38aa is linear along the Y direction (see also Figure 3). The height H of the protruding top portion 38aa from the mounting surface 28c is, for example, about 0.25 mm, the width W (see Figure 3) is about 5 mm, and the inclination angle θ is, for example, about 5°. By making it a shape with a gentle slope toward the base and increasing protrusion amount, the distance of the protruding top portion 38aa from the center of action C can be made even longer. In this embodiment, the protruding top portion 38aa is located slightly toward the X1 side from the X2 side end of the columnar portion 28, but depending on the assembly and fixing strength requirements of the base end anti-slip portion 38a, the layout requirements with the base end cap 32, etc., it may be moved even closer to the X2 side end.

[0028] Figure 5 is a schematic side view showing the tip of the electronic pen 10A, where (a) is a side view showing the first example, (b) is a side view showing the second example, (c) is a side view showing the third example, and (d) is a side view showing the fourth example.

[0029] The pointing action portion 30a of the first example shown in Figure 5(a) is the same as that shown in Figures 2 to 4, and the diameter continuously tapers in the direction of X1 from the tip of the columnar portion 28. The tip-side anti-slip portion 36a is symmetrical to the base-side anti-slip portion 38a, and in a side view, it is a triangular shape with a gentle slope toward the tip and an increasing amount of protrusion, and the protruding apex portion 36aa is linear along the Y direction (see also Figure 3).

[0030] The pointing action portion 30b of the second example shown in Figure 5(b) is spherical and continuously decreases in diameter from the tip of the columnar portion 28 toward the X1 direction.

[0031] In the third example of the pointing action part 30c shown in Figure 5(c), a thin shaft 30ca protrudes from the tip of the columnar part 28, and a spherical part 30cb is provided at the tip of the shaft. In this case, the diameter is discontinuously reduced relative to the columnar part 28.

[0032] In the fourth example shown in Figure 5(d), the tip of the columnar portion 28 is slightly wider in diameter in the X1 direction, and the pointing action portion 30d is shaped to be narrower in diameter in the X1 direction from the tip of the columnar portion 28. In this case, the tip of the columnar portion 28 may be formed of a resin elastic material and also serve as the tip-side anti-slip portion 36a.

[0033] In the examples shown in Figures 5(a) to (d), the protruding top portion 36aa is located at the same position as the tip of the columnar portion 28, but it may be shifted slightly towards the base end depending on the assembly and fixing strength requirements, layout requirements, etc.

[0034] In this electronic pen 10A, magnets 34a and 34b attract to the magnetic magnet 18ab on the side surface 18aa, thereby attaching it to the electronic device 12. Furthermore, the anti-slip portion 36a on the tip side and the anti-slip portion 38a on the base side, which protrude from the mounting surface 28c, generate frictional force with the side surface 18aa. Therefore, even if the magnetic force of magnets 34a and 34b is set to a moderate level, the electronic pen 10A will not move easily, and slippage and detachment can be suppressed. For this reason, in this embodiment, the magnetic force of magnets 34a and 34b is set to about 2000G to avoid affecting nearby magnetic cards, etc. The magnetic magnet 18ab is also limited to about 2000G for the same reason.

[0035] It is considered that an external force in the Y direction is relatively often applied to the tip or base of the electronic pen 10A attached to the electronic device 12. In this case, a rotational moment is applied roughly around the center of action C, but the reactive force generated by the reaction of the tip-side anti-slip portion 36a and the base-side anti-slip portion 38a is considered to be proportional to the distance to the center of action C. Since the tip-side anti-slip portion 36a is located on the tip side of the magnet 34a and the base-side anti-slip portion 38a is located on the base side of the magnet 34b, they are both appropriately far from the center of action C and can generate a large frictional force.

[0036] Furthermore, since the tip-side anti-slip portion 36a is provided near the tip of the columnar portion 28, and the base-side anti-slip portion 38a is provided near the base of the columnar portion 28, the distance to the center of action C can be made even longer. Moreover, since the tip-side anti-slip portion 36a has a shape in which the amount of protrusion increases toward the tip when viewed from the side, and the base-side anti-slip portion 38a has a shape in which the amount of protrusion increases toward the base when viewed from the side, the protruding tops 36aa and 38aa that contact the side surface 18aa can be set even further away from the center of action C.

[0037] The anti-slip parts of the electronic pens 10C, 10D, and 10E, described later, make contact with the side surface 18aa in a circular area of ​​a certain size. However, in the electronic pen 10A, the protruding tops 36aa and 38aa are linear and shaped along the Y direction, resulting in a smaller contact area with the side surface 18aa, which increases the surface pressure and thus provides a greater frictional force.

[0038] As shown in Figure 2, when attached to the electronic device 12, the tip-side anti-slip portion 36a and the base-side anti-slip portion 38a are in contact with the side surface 18aa, while the other parts are spaced apart from the side surface 18aa, ensuring a gap 40. Therefore, even if the columnar portion 28 is slightly bent by the magnetic forces Fa and Fb generated by the magnets 34a and 34b, it will not come into contact with the side surface 18aa as shown by the dashed line, and forces Fc and Fd will be transmitted to the tip-side anti-slip portion 36a and the base-side anti-slip portion 38a, resulting in a strong surface pressure.

[0039] The electronic pen 10A does not require a mechanical hook for attachment to the electronic device 12, which is preferable in terms of design and cost. The magnets 34a and 34b are attracted to the side surface 18aa by a magnetic material other than the magnetic magnets 18bab, such as a steel plate. The orientation of the electronic pen 10A when attached to the side surface 18aa can be either upward or downward. The tip-side anti-slip portion 36a and the base-side anti-slip portion 38a do not necessarily have to be separate components and may be a continuous configuration. The tip-side anti-slip portion 36a and the base-side anti-slip portion 38a may be integrated with the cylindrical portion 28a. The tip-side anti-slip portion 36a and the base-side anti-slip portion 38a are aesthetically natural as the protruding tops 36aa and 38aa are symmetrical in the X and Y directions. However, the tip-side anti-slip portion 36a and the base-side anti-slip portion 38a may be rotated 90 degrees with respect to the Z-axis (see Figure 3) to be configured to be symmetrical and staggered in the Y direction, so that the protruding tops 36aa and 38aa generate frictional force.

[0040] Figure 6 is a schematic perspective view showing the base end of the electronic pen 10B according to the second embodiment. Figure 7 is a schematic perspective view showing the base ends of the electronic pen 10C according to the third embodiment, the electronic pen 10D according to the fourth embodiment, and the electronic pen 10E according to the fifth embodiment. The base ends of the electronic pens 10C to 10E differ only in the dimensions and material of the anti-slip portions 38c, 38d, and 38e on the base end side, and are representatively shown in Figure 7. Figure 8 is a schematic perspective view showing the base end of the electronic pen 10F according to the sixth embodiment.

[0041] Electronic pens 10B, 10C, 10D, 10E, and 10F are provided with base-side anti-slip portions 38b, 38c, 38d, 38e, and 38f at the same position as the base-side anti-slip portion 38a described above. Electronic pen 10B is provided with a tip-side anti-slip portion at the same position as the tip-side anti-slip portion 36a described above, but since it is symmetrical in the X direction with respect to the base-side anti-slip portion 38b, it is not shown in the illustration. Electronic pens 10C, 10D, 10E, and 10F are provided with a tip-side anti-slip portion at the same position as the tip-side anti-slip portion 36a described above, but since it is the same shape as the base-side anti-slip portions 38c, 38d, 38e, and 38f, it is not shown in the illustration.

[0042] As shown in Figure 6, the anti-slip portion 38b on the base end is hemispherical, and the cross-section portion 38ba of the hemisphere is aligned with the X direction. In the experiment shown in Figure 9, which will be described later, the anti-slip portion 38b on the base end was made of silicone material, with a diameter R of 9 mm and a height H of 2 mm.

[0043] As shown in Figure 7, the proximal anti-slip portion 38c is spherical, and in the experiment shown in Figure 9, it was made of silicone material with a diameter R of 6 mm and a height H of 3 mm. The proximal anti-slip portion 38d is spherical, and in the experiment shown in Figure 9, it was made of silicone material with a diameter R of 6 mm and a height H of 2 mm. The proximal anti-slip portion 38e is spherical, and in the experiment shown in Figure 9, it was made of PE material with a diameter R of 7.9 mm and a height H of 2.2 mm.

[0044] As shown in Figure 8, the base end anti-slip portion 38f is provided in two symmetrical configurations in the Y direction, and when viewed from the X direction, the amount of protrusion increases toward both sides in the Y direction, with the protruding top portion 38fa being linear and aligned with the X direction. The tip end anti-slip portion of the electronic pen 10F is similar.

[0045] Figure 9 is a table of experimental results investigating the magnitude of the force required to dislodge or detach electronic pens 10A to 10E from the side surface 18aa of the electronic device 12. The bottom row shows a comparative example with the same shape as electronic pens 10A to 10E, equipped with magnets 34a and 34b, but without anti-slip parts on the base and tip ends. In this experiment, the values ​​were recorded when force was applied in four directions to the tip and base ends of electronic pens 10A to 10E, causing dislodgement. Here, as shown in Figure 3, one direction along the Y direction is defined as the Y1 direction, the other as the Y2 direction, and the direction perpendicular to the X and Y directions and moving away from the side surface 18aa is defined as the Z direction. For electronic pen 10B, the Y1 and Y2 directions are also shown in Figure 6. Areas with a double underline indicate the largest value among the six examples, including the comparative example, while areas with a single underline indicate the smallest value.

[0046] As can be seen from these experimental results, electronic pens 10A to 10E are generally less prone to slipping or falling off compared to the comparative example without an anti-slip surface. When the electronic pen is attached to the electronic device 12, and external forces are mainly applied in the Y1 and Y2 directions, electronic pen 10A shows particularly good results, and when compared with the comparative example in the Y1 direction at the base end, it is 1.8 times (=329 / 180). Although experiments were not conducted on electronic pen 10F, it is thought that a reasonable effect can be obtained considering the other results.

[0047] The present invention is not limited to the embodiments described above, and can be freely modified without departing from the spirit of the invention. [Explanation of symbols]

[0048] 10A, 10B, 10C, 10D, 10E, 10F Electronic Pen 12 Electronic equipment 14 Electronic Devices and Electronic Pen Sets 18a,18b Vertical edge 18ab Adsorption magnet (magnetic material) 28 Columnar part 28a Cylindrical section 28b Mounting base 28c mounting surface 30a, 30b, 30c, 30d Pointing action part 34, 34a, 34b magnets 36a Anti-slip part at the tip 36aa,38aa protruding top 38a, 38b, 38c, 38d, 38e, 38f Base end anti-slip section 40 gaps

Claims

1. An electronic pen in which a predetermined mounting surface is attached to and detached from an electronic device having a magnetic material within the mounting surface, A magnet that is attracted to the aforementioned magnetic material, A tip-side anti-slip portion of a resin elastic material is provided on the tip side of the magnet and protrudes from the mounting surface, A base-end anti-slip portion of a resin elastic material is provided on the base end side of the magnet and protrudes from the mounting surface, It has, The aforementioned tip-side anti-slip portion and the aforementioned base-side anti-slip portion contact the surface to be mounted and generate frictional force. An electronic pen characterized by the following features.

2. In the electronic pen according to claim 1, While attached to the aforementioned electronic device, The aforementioned anti-slip portion at the tip and the aforementioned anti-slip portion at the base are in contact with the surface to be mounted, while the other portions are spaced apart from the surface to be mounted. An electronic pen characterized by the following features.

3. In the electronic pen according to claim 1 or 2, It comprises a columnar portion corresponding to a hand-held grip, and a pointing portion that is shaped to be smaller in diameter towards the tip of the columnar portion. The aforementioned tip-side anti-slip portion is provided near the tip of the columnar portion. The aforementioned anti-slip portion on the base end is provided near the base end of the columnar portion. An electronic pen characterized by the following features.

4. In the electronic pen according to claim 3, The aforementioned anti-slip portion at the tip has a shape in which the amount of protrusion increases toward the tip when viewed from the side, and the top of the protrusion is straight and follows the direction of the pen width. The aforementioned anti-slip portion at the base end has a shape in which the amount of protrusion increases toward the base end when viewed from the side, and the top of the protrusion is straight and follows the direction of the pen width. An electronic pen characterized by the following features.

5. In the electronic pen according to claim 3, The aforementioned anti-slip portion at the tip and the aforementioned anti-slip portion at the base are spherical in shape. An electronic pen characterized by the following features.

6. In the electronic pen according to claim 3, The aforementioned anti-slip portion on the tip side and the aforementioned anti-slip portion on the base side are hemispherical in shape, and the cross-sectional shape of the hemisphere is aligned in the axial direction. An electronic pen characterized by the following features.

7. In the electronic pen according to claim 3, The aforementioned tip-side anti-slip portion has a shape in which the amount of protrusion increases in the direction of the pen width when viewed in the axial direction. The aforementioned anti-slip portion on the base end has a shape in which the amount of protrusion increases in the direction of the pen width when viewed in the axial direction. Each protruding apex is straight and aligned along the axial direction. An electronic pen characterized by the following features.

8. In the electronic pen according to claim 1, The aforementioned anti-slip portion at the tip and the aforementioned anti-slip portion at the base are made of PE, TPU, or silicone. An electronic pen characterized by the following features.

9. An electronic device having a magnetic material within the surface to be attached, and an electronic device / electronic pen set having a predetermined attachment surface that attaches to and detaches from the surface to be attached, The aforementioned electronic pen is A magnet that is attracted to the aforementioned magnetic material, A tip-side anti-slip portion of a resin elastic material is provided on the tip side of the magnet and protrudes from the mounting surface, A base-end anti-slip portion of a resin elastic material is provided on the base end side of the magnet and protrudes from the mounting surface, It has, The aforementioned tip-side anti-slip portion and the aforementioned base-side anti-slip portion contact the surface to be mounted and generate frictional force. An electronic device and electronic pen set characterized by the following features.

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