Electronic pen
By setting up a bridge beam and slope claws in the through hole of the electronic pen, the problem of poor housing strength and operability during the finening process of electronic pen is solved, and a good balance between switching operation and housing strength is achieved. .
Patent Information
- Application Number
- CN202280096342.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-06-23
- Filing Date
- 2022-12-26
- Publication Date
- 2024-12-31
AI Technical Summary
During the thinning process of electronic pen, the through hole and the switch operating part become slender, resulting in a decrease in the pen housing strength and poor user operability, which makes it easy to cause difficult to press and heavy switch operating feeling problems.
A beam part is provided in the through hole of the electronic pen. The beam part is bridged with the contact part of the switch operation part to form a rotating support shaft to ensure the width of the switch operation part and the strength of the housing, and to improve operation convenience through the design of the slope and claw part .
Even if the pen shell is thinned, the housing strength can be maintained, and the ease of switching operation can be improved through the design of the beam and claws, ensuring a balance between operation and housing strength.
Smart Images
Figure CN119234200A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an electronic pen having a side switch. Background Art
[0002] Generally, in an electronic pen, a through hole is provided on the side circumference of a cylindrical housing, and a side switch is provided that is turned on and off by, for example, pressing a switch operating portion that is exposed in an operable manner from the through hole (for example, see Patent Document 1 (Japanese Patent Application Publication No. 2018-018149)). The side switch is disposed on a circuit board disposed in a hollow portion of the housing of the electronic pen.
[0003] The on / off operation of the side switch is set in association with a predetermined function such as a function corresponding to a click operation of a mouse pointer in an electronic device having a position detection sensor that exchanges signals with the electronic pen.
[0004] The information about the user's on / off operation of the side switch in the electronic pen is transmitted from the electronic pen to the electronic device through a position detection sensor or through wireless communication without a position detection sensor, and the above-mentioned function corresponding to the on / off operation of the side switch is executed in the electronic device.
[0005] In addition, there are various operating methods as the switch operating part of the side switch, and among them, the seesaw type switch operating part can turn on and off the two side switches respectively, and therefore is widely used.
[0006] Conventionally, the mounting structure of the seesaw-type switch operating portion is formed as a mounting structure as shown in Patent Document 2 (Japanese Patent Application Laid-Open No. 9-6518), for example. Figure 7 and Figure 8 , the installation structure of the conventional switch operating part is explained.
[0007] Figure 7 1 is a diagram showing the appearance of an electronic pen 100 having a switch operating unit 110 of a side switch. The electronic pen 100 of this example has a switch operating unit 110 exposed from the side circumference of a cylindrical pen case 101. The switch operating unit 110 is mounted at a position closer to the pen tip side than the center portion thereof in the axial direction of the pen case 101. The front end portion of the core 102 protrudes to the outside from an opening on the pen tip side of the pen case 101.
[0008] Figure 8 1 is a diagram for explaining a structure for mounting the switch operation unit 110 to the pen case 101 of the electronic pen 100 in this example. Figure 8 (A) is a diagram showing the appearance of the housing 11 after the switch operating unit 110 is removed. Figure 8(B) and (C) are a plan view (viewed from the operating direction) and a side view of the switch operating unit 110. Figure 8 (D) is Figure 7 (C) AA cross-sectional view.
[0009] like Figure 8 As shown in (A), a through hole 103 for arranging a switch operating unit 110 is formed on the side circumferential surface of the pen housing 101. The opening of the through hole 103 is formed in a shape corresponding to the shape of the switch operating unit 110, and in this example, is formed in the shape of a long hole with the axial direction of the pen housing 101 as the long side direction. In addition, in the pen housing 101, at a substantially central position in the longitudinal direction of the through hole 103 of the long hole, a pair of protrusions 104a and 104b are provided, which protrude from both sides of the long side direction of the through hole 103 in a direction orthogonal to the long side direction of the long hole and in the through hole 103.
[0010] like Figure 8 As shown in (B), (C) and (D) of FIG. 1 , the switch operating portion 110 is formed by forming a fitting portion 112 for engaging with the protrusions 104a and 104b of the pen housing 101, pressing legs 113 and 114 of the side switch, and claws 115 and 116 provided at both ends in the longitudinal direction of the plate-like body 111 on the back side of the slender plate-like body 111 opposite to the surface side exposed to the outside.
[0011] The fitting portion 112 is disposed approximately in the center of the plate-like body 111 in the longitudinal direction. Figure 8 As shown in (D), the pair of hook-shaped portions 112a and 112b are formed. That is, the pair of hook-shaped portions 112a and 112b are extended in a direction perpendicular to the back surface of the plate-shaped body 111 at both ends of the short side direction (width direction) of the plate-shaped body 111, and hook-shaped protrusions are formed at the top ends. Figure 8 As shown in (D) of FIG. 1 , the hook-shaped protrusions of the hook-shaped portions 112 a and 112 b are formed to protrude in opposite directions to each other in the short-side direction of the plate-shaped body 111 .
[0012] In this case, if Figure 8 As shown in (D), in the pair of hook-shaped portions 112a and 112b of the fitting portion 112, spaces 113a and 113b are formed between the back surface of the plate-like body 111 and the hook-shaped protrusions. Furthermore, the pair of hook-shaped portions 112a and 112b of the fitting portion 112 are configured to accommodate the protrusions 104a and 104b provided in a manner protruding from both sides of the through hole 103 of the pen housing 101 in the long-side direction in the spaces 113a and 113b.
[0013] The switch operating part 110 constructed as described above is assembled relative to the through hole 103 of the pen housing 101 in the following state: the protrusions 104a and 104b protruding into the through hole 103 of the pen housing 101 are accommodated and engaged in the spaces 113a and 113b of the hook-shaped parts 112a and 112b of the engaging part 112 of the switch operating part 110, and the claw parts 115 and 116 abut against the inner wall surfaces of the pen housing 101 at both ends of the through hole 103 in the longitudinal direction.
[0014] In this state, the switch operating part 110 can be rotated and displaced inward of the pen case 101 in the through hole 103, with the protrusions 104a and 104b protruding into the through hole 103 of the pen case 101 and the fitting part of the fitting part 112 as a fulcrum. Thus, if the pen tip side of the switch operating part 110 in the length direction is pressed, the side switch arranged on the lower side of the pressing part 113 on the printed circuit board can be pressed by the pressing part 113 to perform on / off control. In addition, if the rear end side of the switch operating part 110 in the length direction opposite to the pen tip side is pressed, the side switch arranged on the lower side of the pressing part 114 on the printed circuit board can be pressed by the pressing part 114 to perform on / off control.
[0015] Prior art literature
[0016] Patent Literature
[0017] Patent Document 1: Japanese Patent Application Publication No. 2018-18149
[0018] Patent Document 2: Japanese Patent Application Laid-Open No. 9-6518 Summary of the invention
[0019] Problems to be solved by the invention
[0020] As described above, when the electronic pen is provided with a switch operating unit of a side switch, a through hole for inserting the switch operating unit is provided in the pen housing. Recently, the pen housing of the electronic pen is becoming thinner, and in accordance with the thinner shape, the through hole and the switch operating unit are also formed to be thin (small in width in the short side direction). The through hole and the switch operating unit are also formed to be thinner because: even if the pen housing is thinner, if the size of the through hole, especially the width in the short side direction, remains the same as before, the strength of the pen housing, especially the strength against deflection caused by the force in the direction orthogonal to the axial direction, may be weakened.
[0021] However, if the switch operating part is thinned, the operability of the side switch by the user will be deteriorated. That is, if the switch operating part is thin, the contact feeling of the user's finger against the switch operating part will be poor, and the user will not be able to accurately press the pressing part of the switch operating part, which may result in a structure with poor usability. In addition, if the switch operating part is thin, the vicinity of the pressing part of the switch operating part will be pressed, so there is also the problem that the switch operation feeling may be heavy and difficult to press.
[0022] The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a digital pen that can solve the above-mentioned problem of the strength of the pen case and obtain a good switch operation feeling of the switch operation portion even if the pen case is made thinner.
[0023] Means for solving problems
[0024] In order to solve the above-mentioned problems, an electronic pen is provided, wherein a through hole having a length direction that is long and is axially oriented in the cylindrical shell is provided on the side circumference of the cylindrical shell, and a switch operating unit provided in the through hole controls the on / off of a switch provided in the shell, wherein:
[0025] A beam portion is provided at a middle position in the longitudinal direction of the through hole of the long hole of the housing, which separates the opening of the through hole in the longitudinal direction by bridging through the through hole in a direction orthogonal to the longitudinal direction.
[0026] The switch operating portion turns the switch in the housing on and off by rotating the depressed portion about the beam as a support axis.
[0027] In the electronic pen of the above structure, a beam portion is provided at the middle position of the through hole of the long hole whose length direction is the axial center direction of the housing, and bridges the through hole in the direction perpendicular to the length direction. Therefore, the presence of the beam portion can prevent the strength of the housing from being reduced even if the width of the through hole in the direction perpendicular to the length direction is wide. Therefore, it is possible to provide an electronic pen having a switch operating portion with a side switch that maintains the strength of the housing even if the pen housing is slimmed, and can maintain the width of the switch operating portion wide and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a diagram showing the appearance of the main parts of an embodiment of the electronic pen according to the present invention.
[0029] Figure 2 It is a cross-sectional view of a main part of an embodiment of the electronic pen according to the present invention.
[0030] Figure 3 It is a cross-sectional view of a main part of another embodiment of the electronic pen of the present invention.
[0031] Figure 4 It is a diagram for explaining a modified example of the main part of the embodiment of the electronic pen according to the present invention.
[0032] Figure 5 It is a diagram for explaining a modified example of the main part of the embodiment of the electronic pen according to the present invention.
[0033] Figure 6 It is a diagram for explaining a modified example of the main part of the embodiment of the electronic pen according to the present invention.
[0034] Figure 7 1 is a diagram showing the appearance of an example of a digital pen including a switch operation unit including a side switch.
[0035] Figure 8 This is a diagram for explaining a mounting structure of a switch operation portion of a conventional electronic pen. DETAILED DESCRIPTION
[0036] Below, while referring to Figure 1 Embodiments of the electronic pen according to the present invention will be described below. Figure 1 1 is a perspective view of a part of a housing (hereinafter referred to as a pen housing) 2 of an electronic pen 1 and a switch operation unit 3 of a side switch for explaining an embodiment of the present invention. Figure 2 It is a longitudinal sectional view of a portion of the electronic pen 1 according to this embodiment where the switch operation unit 3 is mounted.
[0037] The pen housing 2 of the electronic pen 1 of this embodiment is made of a hard material, such as a hard resin. It should be noted that the pen housing 2 may also be made of metal. The pen housing 2 is formed into a cylindrical structure (in this example, a cylindrical structure). Figure 2 As shown, a circuit board 42 held by a board holder 41 is disposed along the axial direction. The pen case 2 may not be a cylinder but may be a cylinder having a polygonal cross section.
[0038] Furthermore, side switches 43 and 44 which are turned on and off by the push legs 33 and 34 are provided at positions corresponding to the push legs 33 and 34 of the switch operation unit 3 , which will be described later.
[0039] like Figure 2 As shown in FIG. 1 , the side switches 43 and 44 are switches that are turned on and off by pressing the operating members 43a and 44a that protrude upward. In this example, the operating members 43a and 44a of the side switches 43 and 44 are structures that elastically return to the original protruding state when the force pressing them disappears. In addition, in this example, the side switches 43 and 44 are switches that are alternately turned on and off every time the operating members 43a and 44a are pressed.
[0040] like Figure 1 As shown, a through hole 21 for providing the switch operating unit 3 is formed on the side circumferential surface of the pen housing 2 at a position close to the pen tip side where the user can easily operate while holding the pen housing 2 of the electronic pen 1. In the pen housing 2 of the electronic pen 1 of this embodiment, in the side circumferential surface portion where the through hole 21 is provided, an area slightly larger than the size of the through hole 21 is cut to be lower than other portions of the side circumferential surface of the pen housing 2, and the through hole 21 is formed approximately in the center of the area cut low. In this case, the area cut low is formed to gradually become lower smoothly toward the through hole 21. That is, as Figure 1 and Figure 2 As shown, a slope portion 22 gradually decreasing toward the through hole 21 is formed around the through hole 21. The presence of the slope portion 22 allows the user to easily grasp the position of the switch operation portion 3 when holding the electronic pen 1 for use.
[0041] like Figure 1 As shown in FIG. 1 , the through hole 21 is formed as an opening of a long hole with the axial direction of the pen housing 2 as the long side direction. Figure 1 As shown, the switch operating portion 3 is configured to have a shape that matches the shape of the opening of the through hole 21 and is slightly smaller than the opening of the through hole 21 .
[0042] The length of the through hole 21 and the switch operating part 3 in the longitudinal direction is formed to be a length that allows the user to easily perform a seesaw operation by pressing down both ends of the longitudinal direction of the switch operating part 3. In addition, the length (width) of the through hole 21 and the switch operating part 3 in the short side direction (direction orthogonal to the axial direction of the pen housing 2) is formed to be a length that allows the user to easily press down the switch operating part 3.
[0043] Furthermore, a beam portion 23 is provided at the middle position in the longitudinal direction of the through hole 21 of the pen case 2, which bridges both sides in the longitudinal direction of the opening of the through hole 21. In this embodiment, the beam portion 23 is formed at the middle position in the longitudinal direction of the through hole 21, and in this example, the opening of the long hole of the through hole 21 is divided into two equal parts in the longitudinal direction thereof by the beam portion 23.
[0044] In this case, the side of the beam portion 23 facing the outside of the pen housing 2 from the through hole 21 is formed into a shape convex toward the outside (in this example, a shape having a curved surface convex toward the outside). Figure 2 As shown in the cross section, the beam portion 23 has a shape obtained by cutting a cylinder (a right cylinder) or an elliptical cylinder with a plane parallel to the center line of its axial direction, and is constructed as follows: the plane portion (cut surface) 23a of the beam portion 23 is opposite to the inner side of the pen case 2, and the arc-shaped convex surface portion 23b becomes the side facing the outside of the pen case 2 from the opening of the through hole 21.
[0045] In this case, if Figure 2 As shown, the thickness d1 of the beam portion 23 from the flat portion 23a to the top of the convex curved portion 23b is smaller than the thickness d2 of the pen case 2 at the portion where the through hole 21 is formed (the end of the slope portion 22). This is because, as described later, the switch operating portion 3 is mounted on the beam portion 23, and therefore, the switch operating portion 3 is mounted in the through hole 21 of the pen case 2 in consideration of the thickness of the switch operating portion 3, so that the switch operating portion 3 does not protrude significantly from the side circumferential surface of the pen case 2 as much as possible. If the switch operating portion 3 protrudes significantly from the side circumferential surface of the pen case 2, it will become an obstacle when the operator of the electronic pen 1 holds the electronic pen 1, and the aesthetic design of the electronic pen 1 may be impaired.
[0046] And, if Figure 2 As shown, the width L of the plane portion 23a of the beam portion 23 (the length of the beam portion 23 in the longitudinal direction of the through hole 21) is larger than the thickness d1 of the beam portion 23. This is to increase the strength of the pen case 2 at the opening portion of the through hole 21 reinforced by the beam portion 23.
[0047] The beam 23 may be formed in a shape other than the shape of this example, and may be formed in a cylindrical (perfect cylindrical) or elliptical cylindrical shape. However, since the thickness d2 of the portion of the pen housing 2 formed by the beam 23 bridging is thin, and the thickness of the beam 23 is configured to be thinner than the thickness of the pen housing 2, it is difficult to obtain strength if the beam is a cylindrical (perfect cylindrical) or elliptical cylindrical beam. In this regard, the beam 23 of this embodiment is configured such that the width L of the plane portion 23a of the beam 23 (the length of the through hole 21 of the beam 23 in the longitudinal direction) is larger than the thickness d1, so that the strength of the beam 23 reinforcing the pen housing 2 at the opening portion of the through hole 21 can be increased.
[0048] The switch operating part 3 is made of a material having elasticity (in this example, a resin having elasticity). The switch operating part 3 is formed into an elongated shape matching the shape of the opening of the through hole 21 of the pen housing 2, such as Figure 1 and Figure 2 As shown, a contact portion 32 for contacting the convex curved surface portion 23b of the beam portion 23 in the through hole 21 of the pen case 2 and pressing legs 33 and 34 for pressing down the operating members 43a and 44a of the side switches 43 and 44 are formed on the back side of the elongated plate-like body 31 opposite to the surface side exposed to the outside, and claws 35 and 36 are provided at both ends in the longitudinal direction of the back side of the plate-like body 31 of the switch operating portion 3 so as to protrude in the longitudinal direction.
[0049] In this embodiment, the contact portion 32 of the switch operating portion 3 with the beam portion 23 is formed as a concave curved surface 32a having a curved surface shape corresponding to the curved surface shape of the convex curved surface portion 23b of the beam portion 23. In this case, in this example, the curvature of the concave curved surface 32a of the contact portion 32 of the switch operating portion 3 is smaller than the curvature of the curved surface of the convex curved surface portion 23b of the beam portion 23, and the contact portion 32 of the switch operating portion 3 is configured to be in line contact with the convex curved surface portion 23b of the beam portion 23. Thus, the switch operating portion 3 is configured to be able to smoothly perform a seesaw motion with the beam portion 23 as a rotation support axis.
[0050] And, if Figure 2 As shown, the switch operating part 3 is assembled by placing the contact part 32 on the convex curved surface part 23b of the beam part 23 of the through hole 21, inserting the claw part 35 into the pen case 2 on the pen tip side of the through hole 21, and the upper surface of the claw part 35 abutting against the inner wall surface of the pen case 2, and inserting the claw part 36 into the pen case 2 on the rear end side of the through hole 21. At this time, the switch operating part 3 is assembled in a state where the claw parts 35 and 36 elastically press the inner wall surface of the pen case 2.
[0051] As mentioned before, use Figure 8 The switch operation part 110 of the conventional electronic pen 100 described above is formed in a structure in which the protrusions 104a and 104b protruding from both sides in the long-side direction of the through hole 103 are fitted in a manner of being accommodated in the spaces 113a and 113b of the pair of hook-shaped parts 112a and 112b of the fitting part 112. In this structure, the size of the spaces 113a and 113b of the pair of hook-shaped parts 112a and 112b of the fitting part 112 of the switch operation part 110 for accommodating the protrusions 104a and 104b protruding from both sides in the long-side direction of the through hole 103 is configured to have a margin, so that the switch operation part 110 may be slightly loose when it is mounted on the pen housing 101.
[0052] In contrast, the switch operating part 3 of the electronic pen 1 of this embodiment is mounted on the beam 23 at the center in the longitudinal direction, and the claws 35 and 36 at both ends in the longitudinal direction are in contact with the inner wall surface of the pen case 2 in a state of elastically pressing the inner wall surface of the pen case 2 upward, so as to be mounted on the through hole 21 of the pen case 2. As a result, the switch operating part 3 is in a state of pressing the beam 23 at the center in the longitudinal direction, and pressing the inner wall surface of the pen case 2 in the direction opposite to the pressing direction of the beam 23 at the center at the both ends in the longitudinal direction, and thus the switch operating part 3 is in a state of being mounted on the pen case 2 in a state of applying a predetermined tension, and no looseness is generated between the switch operating part 3 and the through hole 21 of the pen case 2.
[0053] Furthermore, in the electronic pen 1 of this embodiment, as Figure 2As shown in FIG. 1 , the switch operating part 3 is formed to have a thickness such that the surface of the plate-like body 31 exposed to the outside is coplanar with the side peripheral surface of the pen housing 2 when the switch operating part 3 is assembled in the through hole 21 of the pen housing 2. Therefore, in this embodiment, around the through hole 21 of the pen housing 2, as described above, a slope portion 22 recessed from the side peripheral surface of the pen housing 2 is formed, so that between the plate-like body 31 of the switch operating part 3 and the slope portion 22 of the pen housing 2, as shown in FIG. Figure 2 As shown, step portion 39 is generated. Due to the presence of step portion 39, the user of electronic pen 1 can easily recognize the presence of switch operation portion 3 and operate it.
[0054] In this embodiment, the center portion 31a in the longitudinal direction of the surface of the plate-like body 31 of the switch operating portion 3 exposed to the outside is slightly recessed to facilitate the distinction between the pressing portion 37 on the pen tip side and the pressing portion 38 on the rear end side.
[0055] The electronic pen 1 of this embodiment is configured as described above. Therefore, when the user presses down the pressing portion 37 on the pen tip side of the switch operating portion 3, the pressing leg 33 is elastically displaced by the switch operating portion 3 to press down the operating member 43a of the side switch 43, and the side switch 43 is turned on or off. In addition, when the user presses down the pressing portion 38 on the rear end side of the switch operating portion 3, the pressing leg 34 is elastically displaced by the switch operating portion 3 to press down the operating member 44a of the side switch 44, and the side switch 44 is turned on or off. When the user stops pressing down the pressing portion 37 or 38 of the switch operating portion 3, the pressing portion 37 or 38 of the switch operating portion 3 elastically returns to the original state, and the operating member 43a or 44a of the side switch 43 or 44 automatically returns to the original state. Then, the side switch 43 or 44 maintains the on or off state after being operated by the switch operating portion 3. Then, when the switch operation unit 3 is operated again by the user, the side switch 43 or 44 is changed to a state opposite to the previous state.
[0056] The on / off information of the side switches 43 and 44 is sent to the position detection device side via a position detection sensor that interacts with the electronic pen 1 for signals, or is sent to the position detection device side through wireless communication without going through a position detection sensor via a wireless communication unit of the electronic pen 1, such as a short-range wireless communication standard.
[0057] [Effects of the electronic pen 1 according to the embodiment]
[0058] As described above, in the electronic pen 1 of this embodiment, the beam portion 23 is provided in the middle portion in the longitudinal direction of the through hole 21 for the switch operating portion 3 on the side circumferential surface of the pen case 2 so as to divide the opening of the long hole of the through hole 21 into two parts in the longitudinal direction. According to the electronic pen 1 of this embodiment, the presence of the beam portion 23 can compensate for the decrease in strength of the through hole 21 of the pen case 2 and reinforce it. Therefore, even if the pen case 2 is made thin, the width of the opening of the through hole 21 for the switch operating portion 3 in the short side direction can be maintained at a size that is easy to operate.
[0059] In addition, the switch operating part 3 is placed on the beam part 23 with the center part in the length direction, and the claws 35 and 36 at the two ends in the length direction are assembled to the through hole 21 of the pen case 2 in a state where the inner wall surface of the pen case 2 is elastically pressed upward and abutted against the inner wall surface of the pen case 2, thereby achieving the effect of preventing looseness from occurring between the switch operating part 3 and the through hole 21 of the pen case 2.
[0060] In addition, in the electronic pen 1 of this embodiment, since the slope portion 22 is formed around the through hole 21 of the pen housing 2, the user can easily recognize the position of the switch operating portion 3. Moreover, due to the presence of the slope portion 22, even if the surface of the plate-like body 31 of the switch operating portion 3 is made coplanar with the side circumferential surface of the pen housing 2, a step portion 39 is generated between the switch operating portion 3 and the slope portion 22, thereby achieving an effect that the user can easily recognize the presence of the switch operating portion 3 and operate it.
[0061] [Other embodiments or modifications]
[0062] In the above-described embodiment, the contact portion 32 of the switch operating portion 3 and the beam portion 23 of the through hole 21 of the pen housing 2 are formed as curved surfaces in contact with each other, but the present invention is not limited to this structure.
[0063] exist Figure 3 In the electronic pen 1A of the example (A), the beam portion 23A provided in the middle of the through hole 21 in the longitudinal direction is formed to have a triangular cross-sectional shape, and the apex of the triangle is located in a direction intersecting (e.g., orthogonal to) the axial direction of the pen case 2 and outward from the through hole 21. Furthermore, the contact portion 32A of the switch operating portion 3 is not a concave surface, but is formed as Figure 3 Therefore, in this example, the contact portion 32A of the switch operating portion 3A is also in line contact with the beam portion 23A, and the switch operating portion 3A can perform a seesaw motion by rotating with the beam portion 23A as a support axis. The other parts are the same as those in the above example, so the same reference numerals as those in the above example are marked on these parts.
[0064] It should be noted that the contact portion 32A of the switch operating portion 3 may not be as Figure 3 (A) is not simply formed into a plane, but as Figure 3 As shown in (B), a triangular groove 32Ab having an angle larger than the inner angle of the top of the beam 23A having a triangular cross section is formed at the center of the plane of the contact portion 32A in the width direction, and the groove 32Ab is configured to be in line contact with the beam 23A. In addition, the groove 32Ab may be a concave curved surface instead of a triangular shape.
[0065] It should be noted that the cross-sectional shape of the beam portion 23A may not be a triangle, but may be Figure 3 The shape obtained by cutting the hexagon shown in (C) .
[0066] Next, in the electronic pen of the above-described embodiment, the width (length in a direction perpendicular to the axial direction) of the through hole of the pen case is constant, but it may be changed on the pen tip side and the rear end side. Figure 4 (A) and (B) are diagrams for explaining the electronic pen 1B having such a structure. Figure 4 (A) is a diagram showing the through hole 21B and the beam portion 23B of the pen housing 2B. Figure 4 (B) is a diagram showing a state where the switch operating portion 3B is mounted in the through hole 21B.
[0067] like Figure 4 As shown in (A), in the electronic pen 1B of this example, the through hole 21B provided on the side peripheral surface of the pen housing 2B is formed into a long hole, and the width of the opening on the pen tip side is larger than the opening on the rear end side. Figure 4 In the example of FIG. 1 , in order to facilitate the operation of the switch operation portion 3B by the user, a through hole 21B is formed on the pen tip side so as to form a circular opening 21Ba having a radius larger than the width of other portions.
[0068] Beam 23B is configured similarly to beam 23 and beam 23A in the above-described example. Switch operating portion 3B is configured to have a shape corresponding to the shape of through hole 21B, and in this example, is configured to have a circular operating portion 3Ba that matches circular opening 21Ba of through hole 21B.
[0069] In the electronic pen 1B of this example, since the switch operation unit 3B includes the wide circular operation unit 3Ba on the pen tip side, there is an advantage that the operation on the circular operation unit 3Ba side is particularly easy.
[0070] It should be noted that, of course, the width of the through hole of the pen case may be increased not on the pen tip side but on the rear end side, so as to facilitate switch operation on the rear end side of the switch operation portion.
[0071] Next, in the electronic pen 1, 1A, 1B of the above-mentioned embodiment, the beam portion 23, 23A, 23B is provided at the substantially central position in the length direction of the through hole 21, 21B in which the switch operating portion 3, 3A, 3B is mounted. However, the longitudinal position of the through hole of the beam portion is not limited to the central position. For example, Figure 5 As shown in the pen case 2C of the example (A), a beam portion 23C is provided at a position close to the pen tip side in the length direction of the through hole 21C, and it is also possible to Figure 5 As shown in the pen case 2D of the example of (B), a beam portion 23D is provided at a position close to the rear end side in the longitudinal direction of the through hole 21D.
[0072] Next, in the above-mentioned embodiment, one beam portion is provided at the middle position in the longitudinal direction of the through hole, but two or more beam portions may be provided.
[0073] For example, Figure 6 As shown in (A), two beams 23Ea and 23Eb may be provided near the center of the through hole 21E in the length direction of the pen housing 2E. In this case, Figure 6 As shown in (B) of FIG. 1 , in the switch operation portion 3E, a contact portion 32Ea with the beam portion 23Ea and a contact portion 32Eb with the beam portion 23Eb are formed as recessed portions having the same structure as in the above-described embodiment.
[0074] In this case, when the switch operating part 3E is pressed on the pen tip side, it rotates with the beam part 23Ea as the support axis. In addition, when it is pressed on the rear end side, it rotates with the beam part 23Eb as the support axis, thereby functioning in a manner of turning on and off the side switch on the circuit board.
[0075] It should be noted that if Figure 6 As shown in (C), the contact portion of the switch operating portion 3E may be formed to have a structure including a recessed portion 32E including a contact portion 32Ea and a contact portion 32Eb.
[0076] Next, in the above-mentioned embodiment, the switch operating part is constructed as follows: by rotating with the beam as the support axis, a seesaw motion is performed to switch the connection and disconnection of the two side switches, but the side switch can also be a single switch that switches the connection and disconnection on one side of the seesaw motion.
[0077] Furthermore, as the side switch, three or more side switches can be provided by providing another through hole on the pen tip side or the rear end side in the longitudinal direction of the through hole and providing another switch operating portion in the other through hole.
[0078] Description of Reference Numerals
[0079] 1, 1A, 1B…electronic pen, 2, 2A, 2B…pen housing, 3, 3A, 3B, 3E…switch operating portion, 21, 21B, 21C, 21D, 21E…through hole, 22…slope portion, 23, 23A, 23B, 23C, 23D, 23Ea, 23Eb…beam portion, 31…plate body, 32, 32A, 32B, 32C, 32D, 32Ea, 32Eb…contact portion, 33, 34…pressing leg portion, 35, 36…claw portion, 39…step portion, 41…substrate holder, 42…circuit substrate, 43, 44…side switch.
Claims
1. An electronic pen, wherein a through hole having a length direction that is long and is axial to the cylindrical shell is provided on the side circumference of the cylindrical shell, and a switch operating unit provided in the through hole controls the on / off of a switch provided in the shell, characterized in that: A beam portion is provided at a middle position in the longitudinal direction of the through hole of the long hole of the housing, which separates the opening of the through hole in the longitudinal direction by bridging through the through hole in a direction orthogonal to the longitudinal direction. The switch operating portion turns the switch in the housing on and off by rotating the depressed portion about the beam as a support axis.
2. The electronic pen according to claim 1, characterized in that: The switch operating portion is composed of an elastic member and is formed into a plate-like structure corresponding to the long hole of the through hole. At both ends of the plate-like body in the longitudinal direction, claws extending in the longitudinal direction are provided. The plate is placed on the beam and the claws are engaged with inner wall surfaces at both ends of the through hole of the housing in the longitudinal direction, so that the switch operating portion is locked and mounted in the through hole.
3. The electronic pen according to claim 1, characterized in that: A side of the beam portion facing the outside of the housing from the through hole is formed in a shape that is convex toward the outside.
4. The contact portion of the switch operating portion with the beam portion is formed as a recessed portion corresponding to the shape of the beam portion convex toward the outside.
5. The electronic pen according to claim 1, characterized in that: The side of the beam portion facing the outside of the housing from the through hole is formed in a shape having a curved surface convex toward the outside, and A concave curved surface corresponding to the curved surface of the beam portion is formed at a contact portion of the switch operating portion with the beam portion.
6. The electronic pen according to claim 5, characterized in that: The curvature of the concave curved surface of the switch operating portion is smaller than the curvature of the curved surface of the beam portion that is convex toward the outside, and the beam portion and the switch operating portion are in line contact.
7. The electronic pen according to claim 1, characterized in that: A pressing leg for turning the switch on and off is provided at a portion of the switch operating portion that rotates about the beam portion as a support axis.
8. The electronic pen according to claim 1, characterized in that: The pressing legs are provided at both ends of the switch operating portion in the longitudinal direction of the through hole.
9. The electronic pen according to claim 1, characterized in that: The width of the opening of the through hole separated by the beam portion is different between the opening on the pen tip side and the opening on the rear end side.
10. The electronic pen according to claim 1, characterized in that: The length of the opening of the through hole separated by the beam portion in the axial direction is different between the opening on the pen tip side and the opening on the rear end side.
11. The electronic pen according to claim 1, characterized in that: A region of the housing around which the through hole is formed is lower than other portions of the side peripheral surface of the housing.
12. The electronic pen according to claim 11, characterized in that: The configuration is such that a step portion is generated between a region of the housing around which the through hole is formed and the switch operating portion.