JP6435786B2

JP6435786B2 - Electronic pen

Info

Publication number: JP6435786B2
Application number: JP2014226723A
Authority: JP
Inventors: 伸行大月; 大吾山野; 新井　健; 健新井; 洋平酒井; 聖中西
Original assignee: Seiko Epson Corp
Current assignee: Seiko Epson Corp
Priority date: 2014-11-07
Filing date: 2014-11-07
Publication date: 2018-12-12
Anticipated expiration: 2034-11-07
Also published as: JP2016091398A

Description

本発明は、電子ペンに関する。 The present invention relates to an electronic pen.

従来、ホワイトボード等の投写面に画像を投写するプロジェクター、およびこの投写面上で操作される電子ペン（例えば、特許文献１参照）を備えたシステムが知られている。このような電子ペンを用いたシステムは、ユーザーが電子ペンで筆記に模した操作をすることによって電子ペンが赤外線等の光を発する。そして、プロジェクターは、電子ペンが発する光を検知して、元の画像情報に電子ペンの軌跡に関する情報を重ねて投写することが可能に構成されている。 2. Description of the Related Art Conventionally, a system including a projector that projects an image on a projection surface such as a white board and an electronic pen (see, for example, Patent Document 1) operated on the projection surface is known. In such a system using an electronic pen, the electronic pen emits light such as infrared light when the user performs an operation similar to writing with the electronic pen. The projector is configured to detect light emitted from the electronic pen and project the information related to the locus of the electronic pen on the original image information.

特許文献１に記載の電子ペンは、筆記具に模した形状を有し、シャフトと、赤外線を発する発光ダイオードと、キャップと、傾倒検出機構と、支持部材と、メイン基板とを備える。
シャフトは、先端に発光ダイオードが取り付けられ、傾倒可能に支持部材に支持される。キャップは、電子ペンの先端に位置する部材であり、ユーザーが投写面上で筆記に模した操作をする際に、投写面等に当接する。キャップは、発光ダイオードから射出される赤外線を透過する材料から形成され、発光ダイオードを覆うように、シャフトに取り付けられる。傾倒検出機構は、シャフトの傾倒を検出する機能を有する。メイン基板は、回路素子が実装された回路基板で構成され、傾倒検出機構の検出結果に応じて発光ダイオードを発光させる。
そして、特許文献１に記載の電子ペンは、ユーザーに把持されて、キャップが投写面に押し当てられることにより、キャップおよびシャフトが傾倒し、傾倒検出機構がその傾倒に応じて動作し、メイン基板により発光ダイオードを発光させる。 The electronic pen described in Patent Document 1 has a shape imitating a writing instrument, and includes a shaft, a light emitting diode that emits infrared rays, a cap, a tilt detection mechanism, a support member, and a main board.
A light emitting diode is attached to the tip of the shaft, and the shaft is supported by a support member so as to be tiltable. The cap is a member located at the tip of the electronic pen, and comes into contact with the projection surface or the like when the user performs an operation similar to writing on the projection surface. A cap is formed from the material which permeate | transmits the infrared rays inject | emitted from a light emitting diode, and is attached to a shaft so that a light emitting diode may be covered. The tilt detection mechanism has a function of detecting the tilt of the shaft. The main board is composed of a circuit board on which circuit elements are mounted, and causes the light emitting diode to emit light according to the detection result of the tilt detection mechanism.
The electronic pen described in Patent Document 1 is gripped by the user and the cap is pressed against the projection surface, whereby the cap and the shaft are tilted, and the tilt detection mechanism operates in accordance with the tilt. The light emitting diode is caused to emit light.

特開２０１１−５９７６８号公報JP 2011-59768 A

しかしながら特許文献１に記載の電子ペンは、電子ペンを操作するユーザーによっては、キャップを投写面に当接させる際に、キャップが投写面に衝突するような操作になることがあるため、ユーザーに不快感となる衝突音を発生させてしまうという課題がある。また、キャップと投写面とが当接した状態での書き込み操作の感触は、ホワイトボード等へのマーカーペン等の書き込み操作の感触と大きく異なるため、ユーザーに違和感を与えるという課題もある。 However, the electronic pen described in Patent Document 1 may be operated so that the cap collides against the projection plane when the cap is brought into contact with the projection plane depending on the user who operates the electronic pen. There is a problem that a collision sound that causes discomfort is generated. In addition, since the feel of the writing operation in a state where the cap and the projection surface are in contact with each other is greatly different from the feeling of the writing operation of the marker pen on the whiteboard or the like, there is a problem that the user feels uncomfortable.

本発明は、上述の課題の少なくとも一部を解決するためになされたものであり、以下の形態または適用例として実現することが可能である。 SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

［適用例１］本適用例に係る電子ペンは、発光部を有し、先端部が操作面に押圧される操作によって前記発光部が発光する電子ペンであって、前記先端部を有し、前記発光部が発光する光を透過する筆記部と、前記筆記部を支持し、前記筆記部への押圧を検出して前記発光部を発光させる本体部と、を備え、前記筆記部は、前記先端部を有する弾性部材と、前記弾性部材の外面上に形成された滑性材と、を備え、前記滑性材は、滑り性が前記弾性部材より高い材料で、前記弾性部材の変形および復元に追従して前記弾性部材との密着が維持されるように形成されていることを特徴とする。 Application Example 1 An electronic pen according to this application example is an electronic pen that has a light emitting unit, and the light emitting unit emits light by an operation in which the tip is pressed against an operation surface, and has the tip. A writing unit that transmits light emitted from the light-emitting unit, and a main body unit that supports the writing unit and detects a pressure applied to the writing unit to cause the light-emitting unit to emit light. An elastic member having a tip portion, and a slippery material formed on an outer surface of the elastic member, wherein the slippery material is higher in slipperiness than the elastic member, and the elastic member is deformed and restored. It is formed so that contact | adherence with the said elastic member may be maintained following this.

この構成によれば、電子ペンは、筆記部の先端部が弾性部材で構成されているので、筆記部が操作面に押し当てられる際に、弾性部材が変形することとなる。これによって、筆記部が操作面に当接する際の衝突音を低減することや、筆記部が操作面に当接した状態での書き込み操作の感触を向上させることが可能となる。
また、弾性部材の外面には、滑り性が弾性部材より高く、弾性部材の変形、復元に追従する滑性材が設けられているので、弾性部材が有する弾性を発揮させつつ、電子ペンを操作面上で滑らかに移動させることができる。
したがって、電子ペンのユーザーに不快感となる操作面との衝突音を低減し、操作感が良好な電子ペンの提供が可能となる。 According to this configuration, in the electronic pen, since the tip end portion of the writing unit is configured by the elastic member, the elastic member is deformed when the writing unit is pressed against the operation surface. Thereby, it is possible to reduce a collision sound when the writing unit comes into contact with the operation surface, and to improve the feel of the writing operation in a state where the writing unit comes into contact with the operation surface.
In addition, the outer surface of the elastic member has a slipperiness higher than that of the elastic member and is provided with a slipper material that follows the deformation and restoration of the elastic member, so that the electronic pen can be operated while demonstrating the elasticity of the elastic member. It can be moved smoothly on the surface.
Therefore, it is possible to reduce the collision sound with the operation surface that is uncomfortable for the user of the electronic pen and to provide an electronic pen with a good operational feeling.

［適用例２］上記適用例に係る電子ペンにおいて、前記弾性部材は、前記発光部が発光する前記筆記部への押圧力より小さな押圧力で変形する弾性を有していることが好ましい。 Application Example 2 In the electronic pen according to the application example described above, it is preferable that the elastic member has elasticity that is deformed by a pressing force smaller than a pressing force applied to the writing unit that emits light.

この構成によれば、ユーザーが電子ペンを操作する際、筆記部を操作面に押し当てると、発光部が発光する前に弾性部材が変形することとなる。これによって、筆記部が操作面に押し当てられる際の、電子ペンのユーザーに不快感となる衝突音を確実に低減することが可能となる。 According to this configuration, when the user operates the electronic pen, when the writing unit is pressed against the operation surface, the elastic member is deformed before the light emitting unit emits light. Accordingly, it is possible to reliably reduce the collision sound that causes discomfort to the user of the electronic pen when the writing unit is pressed against the operation surface.

［適用例３］上記適用例に係る電子ペンにおいて、前記筆記部は、前記弾性部材を保持し、前記本体部に支持される支持部材を有することが好ましい。 Application Example 3 In the electronic pen according to the application example described above, it is preferable that the writing unit has a support member that holds the elastic member and is supported by the main body unit.

この構成によれば、筆記部は、上述した支持部材を備えるので、弾性部材が確実に保持された状態で本体部に支持される。 According to this structure, since the writing part is provided with the support member mentioned above, it is supported by the main-body part in the state by which the elastic member was hold | maintained reliably.

［適用例４］上記適用例に係る電子ペンにおいて、前記筆記部は、前記先端部の反対側が開口する中空部を有し、前記発光部は、前記中空部に配置されることが好ましい。 Application Example 4 In the electronic pen according to the application example described above, it is preferable that the writing unit has a hollow part that opens on the opposite side of the tip part, and the light emitting part is disposed in the hollow part.

この構成によれば、発光部は、筆記部の中空部に配置されるので、発光部から発せられる光の損失を抑制して効率良く筆記部から外部に透過させることができる。よって、小型の発光部の採用や、発光部を発光させる電力の省電力化が可能となる。 According to this configuration, since the light emitting unit is disposed in the hollow portion of the writing unit, it is possible to efficiently transmit light from the writing unit to the outside while suppressing loss of light emitted from the light emitting unit. Therefore, it is possible to employ a small light emitting unit and to save power for causing the light emitting unit to emit light.

［適用例５］上記適用例に係る電子ペンにおいて、前記弾性部材は、エラストマーであることが好ましい。 Application Example 5 In the electronic pen according to the application example described above, the elastic member is preferably an elastomer.

ここで、エラストマーとは、弾性を有する高分子材料、例えば、ゴム材や熱可塑性の弾性部材等の材料をいう。
この構成によれば、弾性部材がエラストマーで形成されているので、滑性材をこの弾性部材の外面に形成可能とし、発光部が発する光の透過、および所望の弾性を有するように、弾性部材を形成することが可能となる。 Here, the elastomer means a polymer material having elasticity, for example, a material such as a rubber material or a thermoplastic elastic member.
According to this configuration, since the elastic member is formed of the elastomer, the elastic member can be formed on the outer surface of the elastic member so that the light emitted from the light-emitting portion can be transmitted and has a desired elasticity. Can be formed.

［適用例６］上記適用例に係る電子ペンにおいて、前記滑性材は、セラミックであることが好ましい。 Application Example 6 In the electronic pen according to the application example described above, it is preferable that the slip material is ceramic.

この構成によれば、滑性材がセラミックで形成されているので、発光部が発する光を透過し、操作面に対する滑り性が弾性部材より高い滑性材を形成することが可能となる。 According to this configuration, since the slipping material is formed of ceramic, it is possible to form a slipping material that transmits light emitted from the light emitting portion and has a higher slipperiness with respect to the operation surface than the elastic member.

［適用例７］上記適用例に係る電子ペンにおいて、前記滑性材は、フッ素を含有する材料であることが好ましい。 Application Example 7 In the electronic pen according to the application example described above, it is preferable that the slip material is a material containing fluorine.

この構成によれば、塗装等の製造方法により、弾性部材の外面に容易に滑性材を形成することが可能となる。 According to this configuration, it is possible to easily form the slipping material on the outer surface of the elastic member by a manufacturing method such as painting.

［適用例８］上記適用例に係る電子ペンにおいて、前記弾性部材における前記先端部は、前記筆記部の中心軸を通る平面上における断面の外形形状が、前記中心軸上を頂点とし、前記頂点から遠ざかるほど前記中心軸からの距離が大きくなるような曲線となる曲面状に形成され、前記滑性材は、少なくとも前記先端部に設けられていることが好ましい。 Application Example 8 In the electronic pen according to the application example described above, the distal end portion of the elastic member has an outer shape of a cross section on a plane passing through the central axis of the writing portion, the vertex on the central axis. It is preferable that the distance from the central axis increases as the distance from the surface increases, and the slipping material is provided at least at the tip.

この構成によれば、弾性部材の外面全体に滑性材を設ける構成に比べ、容易に滑性材を形成できるとともに、電子ペンを傾けても、滑性材を操作面に当接させることができる。よって、滑性材を有する筆記部製造の簡素化を図りつつ、操作感を高めた電子ペンの提供が可能となる。 According to this configuration, the sliding material can be easily formed as compared with the configuration in which the entire outer surface of the elastic member is provided with the sliding material, and the sliding material can be brought into contact with the operation surface even when the electronic pen is tilted. it can. Therefore, it is possible to provide an electronic pen with improved operational feeling while simplifying the production of a writing part having a lubricant.

第１実施形態に係る電子ペンを用いた表示システムの概略構成を示す模式図。The schematic diagram which shows schematic structure of the display system using the electronic pen which concerns on 1st Embodiment. 第１実施形態の電子ペンの外観を示す斜視図。FIG. 2 is a perspective view illustrating an appearance of the electronic pen according to the first embodiment. 第１実施形態の電子ペンの断面図。Sectional drawing of the electronic pen of 1st Embodiment. 第１実施形態の筆記部の断面図。Sectional drawing of the writing part of 1st Embodiment. 第２実施形態の電子ペンにおける筆記部および導光部材を説明するための断面図。Sectional drawing for demonstrating the writing part and light guide member in the electronic pen of 2nd Embodiment. 変形例における筆記部の断面図。Sectional drawing of the writing part in a modification.

（第１実施形態）
以下、本実施形態に係る電子ペンについて、図面を参照して説明する。
図１は、本実施形態に係る電子ペン１を用いた表示システム１０の概略構成を示す模式図である。
表示システム１０は、電子ペン１に加え、プロジェクター２０および投写面ＳＣを有するホワイトボード等を備え、プロジェクター２０により投写面ＳＣに投写される画像に対して、ユーザーの電子ペン１の操作により、図形や文字等を重ねて表示できるように構成されている。 (First embodiment)
Hereinafter, the electronic pen according to the present embodiment will be described with reference to the drawings.
FIG. 1 is a schematic diagram illustrating a schematic configuration of a display system 10 using the electronic pen 1 according to the present embodiment.
The display system 10 includes, in addition to the electronic pen 1, a whiteboard having a projector 20 and a projection surface SC. The image projected onto the projection surface SC by the projector 20 is displayed by a user's operation of the electronic pen 1. And characters can be displayed in an overlapping manner.

詳細な説明は省略するが、プロジェクター２０は、入力された画像情報に応じた画像を投写面ＳＣに投写する画像投写部、および投写面ＳＣを撮像する撮像部を備える。そして、プロジェクター２０は、投写面ＳＣ上で操作された電子ペン１から発せられた赤外線を検知し、検知した情報に基づいて赤外線の発信位置の解析を行い、画像情報にこの発信位置の軌跡を示す線を重畳した重畳画像を投写面ＳＣに投写する。投写面ＳＣは、電子ペン１の先端部が押し当てられて操作される操作面となる。ここで、電子ペン１の先端部とは、ユーザーの操作によって投写面ＳＣに押圧される部位のことをいう。すなわち、電子ペン１の先端部は、投写面ＳＣに対して電子ペン１を略直角にして操作する場合はもとより、投写面ＳＣに対して電子ペン１を傾けて操作する場合に、投写面ＳＣに押圧される。 Although detailed description is omitted, the projector 20 includes an image projection unit that projects an image according to the input image information onto the projection surface SC, and an imaging unit that images the projection surface SC. The projector 20 detects infrared rays emitted from the electronic pen 1 operated on the projection screen SC, analyzes the infrared transmission position based on the detected information, and displays the locus of the transmission position in the image information. A superimposed image in which the indicated line is superimposed is projected onto the projection surface SC. The projection surface SC is an operation surface that is operated by pressing the tip of the electronic pen 1. Here, the tip portion of the electronic pen 1 refers to a portion that is pressed against the projection surface SC by a user operation. That is, the tip of the electronic pen 1 is used not only when the electronic pen 1 is operated at a substantially right angle with respect to the projection plane SC, but also when the electronic pen 1 is operated while being tilted with respect to the projection plane SC. Pressed.

図２は、電子ペン１の外観を示す斜視図である。図３は、電子ペン１の断面図である。
電子ペン１は、図２に示すように、筆記具に模した形状を有している。電子ペン１は、図３に示すように、先端部を有する筆記部２、筆記部２内に収納される発光部３、および筆記部２を支持する本体部４を備え、先端部が投写面ＳＣ（操作面）に押圧される操作によって発光部３が発光する。
本体部４は、スイッチ機構４１、回路ユニット４２、電池４３、およびこれらの部材を内部に収納する外装筐体５を備える。 FIG. 2 is a perspective view showing the external appearance of the electronic pen 1. FIG. 3 is a cross-sectional view of the electronic pen 1.
As shown in FIG. 2, the electronic pen 1 has a shape imitating a writing instrument. As shown in FIG. 3, the electronic pen 1 includes a writing part 2 having a tip part, a light emitting part 3 housed in the writing part 2, and a main body part 4 that supports the writing part 2, and the tip part is a projection plane. The light emitting unit 3 emits light by an operation pressed on the SC (operation surface).
The main body 4 includes a switch mechanism 41, a circuit unit 42, a battery 43, and an exterior housing 5 that houses these members.

筆記部２は、後で詳細に説明するが、図３に示すように、先端部を有する弾性部材２２、および弾性部材２２の内側に配置され、弾性部材２２を保持して本体部４に着脱可能に支持される支持部材２１等を備える。筆記部２は、先端部の反対側が開口する中空部２Ａを有し、この開口部近傍の支持部材２１の内面にはネジ溝２１Ｓ（図４参照）が設けられている。 As will be described in detail later, the writing unit 2 is disposed inside the elastic member 22 having the tip and the elastic member 22 as shown in FIG. The support member 21 etc. supported so that it is possible are provided. The writing part 2 has a hollow part 2A that opens on the opposite side of the tip part, and a screw groove 21S (see FIG. 4) is provided on the inner surface of the support member 21 in the vicinity of the opening part.

発光部３は、赤外線を発する発光ダイオードで構成されており、図３に示すように、筆記部２の中空部２Ａに配置され、リード端子３Ｔを介して回路ユニット４２に接続される。 The light emitting unit 3 is composed of a light emitting diode that emits infrared rays. As shown in FIG. 3, the light emitting unit 3 is disposed in the hollow portion 2A of the writing unit 2 and is connected to the circuit unit 42 via the lead terminal 3T.

スイッチ機構４１は、詳細な説明は省略するが、図３に示すように、筆記部２に接続される接続部材４１１、および図示しない複数の電気的接続部材等を備え、発光部３を発光させるスイッチとしての機能を有する。
接続部材４１１は、図３に示すように、円筒状の部位を有し、この円筒状の一端側の外周面には、支持部材２１のネジ溝２１Ｓ（図４参照）と螺合するネジ溝４１１Ｓが形成されている。そして、接続部材４１１は、ネジ溝４１１Ｓが外装筐体５から露出し、ネジ溝４１１Ｓの反対側が複数の電気的接続部材と共に外装筐体５内に配置される。 Although detailed description is omitted, the switch mechanism 41 includes a connection member 411 connected to the writing unit 2 and a plurality of electrical connection members (not shown) as shown in FIG. 3, and causes the light emitting unit 3 to emit light. It has a function as a switch.
As shown in FIG. 3, the connecting member 411 has a cylindrical portion, and a screw groove that is screwed with a screw groove 21 S (see FIG. 4) of the support member 21 on an outer peripheral surface of one end of the cylindrical shape. 411S is formed. In the connection member 411, the screw groove 411S is exposed from the exterior housing 5, and the opposite side of the screw groove 411S is disposed in the exterior housing 5 together with the plurality of electrical connection members.

発光部３は、接続部材４１１から露出し、リード端子３Ｔが接続部材４１１の内部に挿通されて配置される。
筆記部２は、支持部材２１のネジ溝２１Ｓが接続部材４１１のネジ溝４１１Ｓに螺合されることにより、接続部材４１１に接続される。すなわち、筆記部２は、本体部４を分解することなく、容易に交換可能に構成されている。そして、発光部３および接続部材４１１は、筆記部２が押圧されると、筆記部２と共に移動する。 The light emitting unit 3 is exposed from the connection member 411, and the lead terminal 3 T is inserted through the connection member 411.
The writing unit 2 is connected to the connection member 411 by screwing the screw groove 21 S of the support member 21 into the screw groove 411 S of the connection member 411. That is, the writing unit 2 is configured to be easily exchangeable without disassembling the main body unit 4. The light emitting unit 3 and the connecting member 411 move together with the writing unit 2 when the writing unit 2 is pressed.

スイッチ機構４１は、筆記部２が押圧されると、接続部材４１１が筆記部２と共に移動することにより複数の電気的接続部材の接続状態が変わり、制御部は、この接続状態が変わることにより発光部３を発光させる。ここで、筆記部２および接続部材４１１の移動とは、筆記部２の中心軸Ａｘに対する傾倒や、筆記部２の中心軸Ａｘに沿う本体部４側への移動のことをいう。 When the writing unit 2 is pressed, the switch mechanism 41 changes the connection state of the plurality of electrical connection members by moving the connecting member 411 together with the writing unit 2, and the control unit emits light by changing the connection state. The part 3 is caused to emit light. Here, the movement of the writing unit 2 and the connecting member 411 refers to the tilting of the writing unit 2 with respect to the central axis Ax or the movement of the writing unit 2 toward the main body 4 along the central axis Ax.

回路ユニット４２は、ＣＰＵ（Central Processing Unit）等の素子が実装されたメイン基板、および電池４３との接続端子等を備え、ＣＰＵ等の素子は、制御部として機能する。回路ユニット４２は、筆記部２の移動に伴うスイッチ機構４１の動作に応じて発光部３を発光させる。このように、本体部４は、筆記部２への押圧を検出して発光部３を発光させる。
接続端子は、図３に示すように、電池４３のプラス端子に接続するプラス端子４２Ａ、および電池４３のマイナス端子に接続するマイナス端子（図示省略）を備え、プラス端子４２Ａおよびマイナス端子は、それぞれメイン基板に接続される。 The circuit unit 42 includes a main substrate on which an element such as a CPU (Central Processing Unit) is mounted, a connection terminal with the battery 43, and the like, and the element such as the CPU functions as a control unit. The circuit unit 42 causes the light emitting unit 3 to emit light according to the operation of the switch mechanism 41 accompanying the movement of the writing unit 2. As described above, the main body 4 detects the pressure on the writing unit 2 and causes the light emitting unit 3 to emit light.
As shown in FIG. 3, the connection terminal includes a positive terminal 42A connected to the positive terminal of the battery 43 and a negative terminal (not shown) connected to the negative terminal of the battery 43. The positive terminal 42A and the negative terminal are respectively Connected to the main board.

電池４３は、発光部３および回路ユニット４２に電力を供給する。本実施形態の電池４３は、単３型の乾電池１本で構成されている。 The battery 43 supplies power to the light emitting unit 3 and the circuit unit 42. The battery 43 of this embodiment is composed of one AA type dry battery.

外装筐体５は、図２、図３に示すように、外形が略円柱状に形成されており、ケース本体５１、ケース本体５１の筆記部２側に位置する枠体５２、および電池蓋５３を備える。
ケース本体５１は、筆記部２側に開口部が設けられており、スイッチ機構４１および回路ユニット４２は、この開口部からケース本体５１内に収納される。また、ケース本体５１には、円柱状の外面の一部に開口部が設けられており、電池４３は、この開口部からケース本体５１内に収納される。また、ケース本体５１には、図２に示すように、筆記部２とは反対側の端部近傍に膨出部５１１が形成され、この膨出部５１１には、ストラップ取付け用の孔（図示省略）が設けられている。膨出部５１１は、電子ペン１が机上等に載置された際に電子ペン１の転がりを防止する機能も有している。 As shown in FIGS. 2 and 3, the outer casing 5 has an outer shape formed in a substantially columnar shape, and includes a case main body 51, a frame 52 positioned on the writing portion 2 side of the case main body 51, and a battery lid 53. Is provided.
The case main body 51 is provided with an opening on the writing unit 2 side, and the switch mechanism 41 and the circuit unit 42 are accommodated in the case main body 51 from the opening. The case body 51 is provided with an opening in a part of the cylindrical outer surface, and the battery 43 is accommodated in the case body 51 through the opening. Further, as shown in FIG. 2, a bulging portion 511 is formed in the case body 51 in the vicinity of the end opposite to the writing portion 2, and the bulging portion 511 has a hole for attaching a strap (not shown). (Omitted) is provided. The bulging portion 511 also has a function of preventing the electronic pen 1 from rolling when the electronic pen 1 is placed on a desk or the like.

枠体５２は、図３に示すように、ケース本体５１の筆記部２側の開口部を閉塞するように形成され、スイッチ機構４１の接続部材４１１が挿通される孔が設けられている。
電池蓋５３は、ケース本体５１に収納された電池４３を覆うように、ケース本体５１に着脱可能に配置される。 As shown in FIG. 3, the frame 52 is formed so as to close the opening on the writing part 2 side of the case body 51, and is provided with a hole through which the connection member 411 of the switch mechanism 41 is inserted.
The battery lid 53 is detachably disposed on the case body 51 so as to cover the battery 43 housed in the case body 51.

〔筆記部の構成〕
ここで、筆記部２について詳細に説明する。
図４は、筆記部２の断面図である。
筆記部２は、図４に示すように、支持部材２１および弾性部材２２に加え、滑性材２３を備える。 [Composition of writing section]
Here, the writing unit 2 will be described in detail.
FIG. 4 is a cross-sectional view of the writing unit 2.
As shown in FIG. 4, the writing unit 2 includes a sliding member 23 in addition to the support member 21 and the elastic member 22.

支持部材２１は、発光部３が発する赤外線を透過する合成樹脂で形成され、弾性部材２２を保持する機能および本体部４に支持される機能に加え、発光部３を保護する機能を有している。支持部材２１を形成する合成樹脂としては、例えば、ポリカーボネート（ＰＣ）、ポリアセタール（ＰＯＭ）、ＡＢＳ（Acrylonitrile Butadiene Styrene）、アクリル（ＰＭＭＡ）等を採用することが可能である。
支持部材２１は、図４に示すように、前述した中空部２Ａが設けられ、円筒状の筒状部２１ａ、および発光部３の光射出側を覆う積層部２１ｂを有している。
筒状部２１ａには、内面に前述したネジ溝２１Ｓが設けられ、ネジ溝２１Ｓの反対側となる外面の端部に、凹部２１１が形成されている。 The support member 21 is formed of a synthetic resin that transmits infrared rays emitted from the light emitting unit 3, and has a function of protecting the light emitting unit 3 in addition to a function of holding the elastic member 22 and a function of being supported by the main body unit 4. Yes. As the synthetic resin forming the support member 21, for example, polycarbonate (PC), polyacetal (POM), ABS (Acrylonitrile Butadiene Styrene), acrylic (PMMA), or the like can be employed.
As shown in FIG. 4, the support member 21 includes the hollow portion 2 A described above, and includes a cylindrical tubular portion 21 a and a laminated portion 21 b that covers the light emission side of the light emitting portion 3.
The cylindrical portion 21a is provided with the above-described screw groove 21S on the inner surface, and a concave portion 211 is formed at the end of the outer surface on the opposite side of the screw groove 21S.

弾性部材２２は、発光部３が発する赤外線を透過するエラストマーで形成され、支持部材２１の外面を覆うように形成されている。本実施形態の弾性部材２２は、シリコンゴムが用いられている。
具体的に、弾性部材２２は、支持部材２１の筒状部２１ａおよび積層部２１ｂの外面を覆うように形成され、積層部２１ｂの外面を覆う領域に先端部が設けられている。積層部２１ｂは、弾性部材２２における先端部の内側に積層されることとなる。
弾性部材２２の先端部は、外面が球面状に形成され、筒状部２１ａを覆う部位には、支持部材２１の凹部２１１に係合する突起２２１が設けられている。 The elastic member 22 is formed of an elastomer that transmits infrared rays emitted from the light emitting unit 3, and is formed so as to cover the outer surface of the support member 21. Silicon rubber is used for the elastic member 22 of the present embodiment.
Specifically, the elastic member 22 is formed so as to cover the outer surface of the cylindrical portion 21a and the laminated portion 21b of the support member 21, and a tip portion is provided in a region covering the outer surface of the laminated portion 21b. The stacked portion 21b is stacked inside the tip portion of the elastic member 22.
The outer end of the elastic member 22 has a spherical outer surface, and a protrusion 221 that engages with the concave portion 211 of the support member 21 is provided at a portion covering the cylindrical portion 21a.

なお、弾性部材２２の先端部の形状は、球面状に限らない。中心軸Ａｘを通る平面における断面の外形形状が、中心軸Ａｘ上を頂点とし、この頂点から遠ざかるほど中心軸Ａｘからの距離が大きくなるような曲線となる曲面状に形成されていればよい。弾性部材２２の先端部の形状として、球面状以外に、例えば、中心軸Ａｘを通る平面における断面の外形形状が放物線状や、楕円の一部の形状、あるいは放物線に模した形状や、楕円の一部の形状に模した形状となるように形成してもよい。 In addition, the shape of the front-end | tip part of the elastic member 22 is not restricted to spherical shape. The outer shape of the cross section in the plane passing through the central axis Ax may be formed in a curved surface having a curve that has a vertex on the central axis Ax and the distance from the central axis Ax increases as the distance from the vertex increases. In addition to the spherical shape, for example, the shape of the tip of the elastic member 22 is a parabolic shape, a partial shape of an ellipse, a shape imitating a parabola, or an elliptical shape, in a plane passing through the central axis Ax. You may form so that it may become a shape imitating a part of shape.

また、弾性部材２２は、発光部３が発光する筆記部２への押圧力より小さな押圧力で変形する弾性を有している。すなわち、弾性部材２２は、ユーザーが電子ペン１の先端部を投写面ＳＣに押し当てると、本体部４が筆記部２の移動を検出する前、つまり発光部３が赤外線を発する前に、変形するような弾性を有している。そして、弾性部材２２は、筆記部２が投写面ＳＣからの押圧が解除されるように操作されると、元の形状に復元する。 Moreover, the elastic member 22 has elasticity which deform | transforms with a pressing force smaller than the pressing force to the writing part 2 which the light emission part 3 light-emits. That is, when the user presses the tip of the electronic pen 1 against the projection surface SC, the elastic member 22 is deformed before the main body 4 detects the movement of the writing unit 2, that is, before the light emitting unit 3 emits infrared rays. It has such elasticity. Then, when the writing unit 2 is operated so that the pressing from the projection surface SC is released, the elastic member 22 is restored to the original shape.

滑性材２３は、弾性部材２２の外面上、具体的には弾性部材２２の外面における少なくとも先端部に形成されている。滑性材２３は、発光部３が発する赤外線を透過し、投写面ＳＣに対する滑り性が弾性部材２２より高い材料、すなわち、弾性部材２２に比べて摩擦係数が小さい材料で、弾性部材２２の変形および復元に追従して弾性部材２２との密着が維持されるように形成されている。すなわち、滑性材２３は、弾性部材２２が有する弾性を発揮可能な状態で、弾性部材２２の外面に形成されている。 The slipping material 23 is formed on the outer surface of the elastic member 22, specifically, at least at the tip of the outer surface of the elastic member 22. The slipping material 23 is a material that transmits infrared rays emitted from the light emitting unit 3 and has a higher slipping property with respect to the projection surface SC than the elastic member 22, that is, a material having a smaller friction coefficient than the elastic member 22. Further, it is formed so as to maintain close contact with the elastic member 22 following the restoration. That is, the slipping material 23 is formed on the outer surface of the elastic member 22 in a state where the elasticity of the elastic member 22 can be exhibited.

滑性材２３としては、例えば、スパッタリングや蒸着等を利用した製法で薄膜状に形成セラミックを採用することができる。この滑性材２３としてのセラミックは、電子ペン１が操作される際に投写面ＳＣに確実に当接し、押圧に応じて弾性部材２２が変形および復元するように、また、弾性部材２２の変形および復元に追従して弾性部材２２との密着が維持されるように形成されている。 As the slipping material 23, for example, a ceramic formed into a thin film can be employed by a manufacturing method using sputtering, vapor deposition, or the like. The ceramic as the slipping material 23 is surely brought into contact with the projection surface SC when the electronic pen 1 is operated so that the elastic member 22 is deformed and restored in response to the pressing, and the elastic member 22 is deformed. Further, it is formed so as to maintain close contact with the elastic member 22 following the restoration.

筆記部２は、弾性部材２２に滑性材２３が形成され、弾性部材２２の突起２２１が凹部２１１に係合されるように支持部材２１に被されて組み立てられる。そして、筆記部２は、前述したように、支持部材２１のネジ溝２１Ｓが接続部材４１１のネジ溝４１１Ｓに螺合されて本体部４に取り付けられる。その結果、筆記部２は、中空部２Ａに発光部３が配置され、本体部４に支持される。
筆記部２は、先端部を形成する弾性部材２２がユーザーの操作に応じて変形し、投写面ＳＣからの押圧が解除されるように操作されると、元の形状に復元する。そして、電子ペン１は、筆記部２の先端部が所定以上押圧されると発光部３が発光し、発光部３から発せられた赤外線は、支持部材２１および弾性部材２２を透過して外部に射出される。 The writing unit 2 is assembled by being covered with the support member 21 so that the slippery material 23 is formed on the elastic member 22 and the protrusion 221 of the elastic member 22 is engaged with the recess 211. As described above, the writing unit 2 is attached to the main body unit 4 by screwing the screw groove 21 S of the support member 21 into the screw groove 411 S of the connection member 411. As a result, the writing unit 2 has the light emitting unit 3 disposed in the hollow portion 2 A and is supported by the main body unit 4.
The writing unit 2 is restored to its original shape when the elastic member 22 forming the tip portion is deformed according to the user's operation and is operated so that the pressing from the projection surface SC is released. In the electronic pen 1, when the tip of the writing unit 2 is pressed more than a predetermined amount, the light emitting unit 3 emits light, and the infrared light emitted from the light emitting unit 3 passes through the support member 21 and the elastic member 22 to the outside. It is injected.

以上説明したように、本実施形態の電子ペン１によれば、以下の効果を得ることができる。
（１）電子ペン１は、筆記部２の先端部が弾性部材２２で構成されているので、筆記部２が投写面ＳＣに押し当てられる際に、弾性部材２２が変形することとなる。これによって、筆記部２が投写面ＳＣに当接する際の衝突音を低減することや、筆記部２が投写面ＳＣに当接した状態での書き込み操作の感触を向上させることが可能となる。
また、弾性部材２２の先端部には、滑り性が弾性部材２２より高く、弾性部材２２の変形、復元に追従する滑性材２３が設けられているので、弾性部材２２が有する弾性を発揮させつつ、電子ペン１を操作面上で滑らかに移動させることができる。
したがって、電子ペン１のユーザーに不快感となる操作面との衝突音を低減し、操作感が良好な電子ペン１の提供が可能となる。 As described above, according to the electronic pen 1 of the present embodiment, the following effects can be obtained.
(1) Since the tip of the writing unit 2 is configured by the elastic member 22 in the electronic pen 1, the elastic member 22 is deformed when the writing unit 2 is pressed against the projection surface SC. Thereby, it is possible to reduce a collision sound when the writing unit 2 is in contact with the projection surface SC, and it is possible to improve the feel of the writing operation in a state where the writing unit 2 is in contact with the projection surface SC.
Further, since the slipperiness of the elastic member 22 is higher than that of the elastic member 22 and the slippery material 23 that follows the deformation and restoration of the elastic member 22 is provided, the elasticity of the elastic member 22 is exhibited. Meanwhile, the electronic pen 1 can be smoothly moved on the operation surface.
Therefore, it is possible to reduce the collision sound with the operation surface that causes discomfort to the user of the electronic pen 1 and to provide the electronic pen 1 with a good operational feeling.

（２）弾性部材２２は、ユーザーが電子ペン１を投写面ＳＣに押し当てると、発光部３が発光する前に変形するような弾性を有している。これによって、筆記部２が投写面ＳＣに押し当てられる際の、電子ペン１のユーザーに不快感となる衝突音を確実に低減することが可能となる。 (2) The elastic member 22 has elasticity such that when the user presses the electronic pen 1 against the projection surface SC, the light emitting unit 3 is deformed before emitting light. Accordingly, it is possible to reliably reduce the collision sound that causes discomfort to the user of the electronic pen 1 when the writing unit 2 is pressed against the projection surface SC.

（３）筆記部２は、弾性部材２２を保持し、本体部４に支持される支持部材２１を備えるので、弾性部材２２が確実に保持された状態で本体部４に支持される。
また、筆記部２は、支持部材２１のネジ溝２１Ｓと接続部材４１１のネジ溝４１１Ｓとの螺合により本体部４に接続される構成なので、本体部４を分解することなく、容易に筆記部２を交換することができる。 (3) Since the writing unit 2 includes the support member 21 that holds the elastic member 22 and is supported by the main body 4, the writing unit 2 is supported by the main body 4 while the elastic member 22 is securely held.
In addition, the writing unit 2 is configured to be connected to the main body unit 4 by screwing the screw groove 21S of the support member 21 and the screw groove 411S of the connection member 411, so that the writing unit can be easily performed without disassembling the main body unit 4. 2 can be exchanged.

（４）発光部３は、中空部２Ａに配置されるので、発光部３から発せられる光の損失を抑制して効率良く筆記部２から外部に透過させることができる。よって、小型の発光部３の採用や、発光部３を発光させる電力の省電力化が可能となる。 (4) Since the light emitting unit 3 is disposed in the hollow portion 2A, the loss of light emitted from the light emitting unit 3 can be suppressed and efficiently transmitted from the writing unit 2 to the outside. Therefore, it is possible to employ a small light emitting unit 3 and to save power for causing the light emitting unit 3 to emit light.

（５）弾性部材２２がエラストマーで形成されているので、発光部３が発する赤外線を透過し、所望の弾性を有するように、弾性部材２２形成することが可能となる。 (5) Since the elastic member 22 is formed of an elastomer, the elastic member 22 can be formed so as to transmit infrared rays emitted from the light emitting unit 3 and to have a desired elasticity.

（６）滑性材２３がセラミックで形成されているので、発光部３が発する赤外線を透過し、投写面ＳＣに対する滑り性が弾性部材より高い滑性材を形成することが可能となる。 (6) Since the slipping material 23 is formed of ceramic, it is possible to form a slipping material that transmits infrared rays emitted from the light emitting unit 3 and has a higher slipping property with respect to the projection surface SC than the elastic member.

（７）弾性部材２２の先端部は、前述したように曲面状に形成され、滑性材２３は、弾性部材２２の少なくとも先端部に形成されている。これによって、弾性部材２２の外面全体に滑性材２３を設ける構成に比べ、容易に滑性材２３を形成できるとともに、電子ペン１を傾けても、滑性材２３を投写面ＳＣに当接させることができる。よって、筆記部２製造の簡素化を図りつつ、操作感を高めた電子ペン１の提供が可能となる。 (7) The distal end portion of the elastic member 22 is formed in a curved shape as described above, and the slipping material 23 is formed at least at the distal end portion of the elastic member 22. Accordingly, the sliding material 23 can be easily formed as compared with the configuration in which the entire outer surface of the elastic member 22 is provided with the sliding material 23, and the sliding material 23 is brought into contact with the projection surface SC even when the electronic pen 1 is tilted. Can be made. Therefore, it is possible to provide the electronic pen 1 with enhanced operational feeling while simplifying the writing unit 2 manufacturing.

（第２実施形態）
第２実施形態に係る電子ペンについて、図面を参照して説明する。以下の説明では、第１実施形態の電子ペン１と同様の構成および同様の部材には、同一符号を付し、その詳細な説明は省略または簡略化する。
本実施形態の電子ペンは、第１実施形態の筆記部２とは異なる筆記部７、および第１実施形態の電子ペン１が備えない導光部材６を備える。 (Second Embodiment)
An electronic pen according to a second embodiment will be described with reference to the drawings. In the following description, the same configurations and similar members as those of the electronic pen 1 of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted or simplified.
The electronic pen of the present embodiment includes a writing unit 7 different from the writing unit 2 of the first embodiment and a light guide member 6 that the electronic pen 1 of the first embodiment does not have.

図５は、本実施形態の電子ペンにおける筆記部７および導光部材６を説明するための断面図である。
本実施形態の電子ペンは、図５に示すように、発光部３が筆記部７から離間して本体部（本実施形態の本体部は図示省略）内に収納され、発光部３から発せられる赤外線が導光部材６によって筆記部７の中空部７Ａに導かれるように構成されている。また、発光部３は、本体部に固定して配置される。
筆記部７は、図５に示すように、先端部を有する弾性部材７２、および弾性部材７２の内側に配置され、弾性部材７２を保持して本体部に着脱可能に支持される支持部材７１を備える。そして、筆記部７は、先端部の反対側が開口する中空部７Ａを有し、弾性部材７２の先端部には、滑性材７３が形成されている。 FIG. 5 is a cross-sectional view for explaining the writing unit 7 and the light guide member 6 in the electronic pen of the present embodiment.
In the electronic pen of the present embodiment, as shown in FIG. 5, the light emitting unit 3 is separated from the writing unit 7 and is housed in a main body (the main body of the present embodiment is not shown) and emitted from the light emitting unit 3. The infrared light is configured to be guided to the hollow part 7 A of the writing part 7 by the light guide member 6. The light emitting unit 3 is fixed to the main body.
As shown in FIG. 5, the writing unit 7 includes an elastic member 72 having a distal end portion, and a support member 71 that is disposed inside the elastic member 72 and that is supported by the main body unit so as to be detachably supported while holding the elastic member 72. Prepare. The writing unit 7 has a hollow portion 7A that opens on the opposite side of the tip portion, and a sliding material 73 is formed at the tip portion of the elastic member 72.

支持部材７１は、第１実施形態の支持部材２１における積層部２１ｂ（図４参照）に相当する部位を有さない円筒状に形成され、支持部材２１のネジ溝２１Ｓ、凹部２１１と同様に形成されたネジ溝７１Ｓ、凹部７１１を有している。また、支持部材７１の凹部７１１以外の外面は、先端側に向かう程、外径が小さくなるように傾斜している。なお、支持部材７１は、発光部３が発する赤外線を透過する部材に限らず、赤外線を透過しない部材を採用することもできる。 The support member 71 is formed in a cylindrical shape that does not have a portion corresponding to the laminated portion 21b (see FIG. 4) in the support member 21 of the first embodiment, and is formed in the same manner as the screw groove 21S and the recess 211 of the support member 21. The screw groove 71S and the recess 711 are provided. In addition, the outer surface of the support member 71 other than the recess 711 is inclined so that the outer diameter becomes smaller toward the tip side. The support member 71 is not limited to a member that transmits infrared rays emitted from the light emitting unit 3, and a member that does not transmit infrared rays can also be employed.

弾性部材７２は、支持部材７１の外面を覆うように形成され、先端部側の内面と、支持部材７１の内面とで中空部７Ａが形成される。また、弾性部材７２には、支持部材７１の凹部７１１に係合する突起７２１が設けられ、支持部材７１の外面を覆う部位の外面は、先端側に向かう程、外径が小さくなるように傾斜している。 The elastic member 72 is formed so as to cover the outer surface of the support member 71, and the hollow portion 7 A is formed by the inner surface on the distal end side and the inner surface of the support member 71. In addition, the elastic member 72 is provided with a protrusion 721 that engages with the concave portion 711 of the support member 71, and the outer surface of the portion covering the outer surface of the support member 71 is inclined so that the outer diameter decreases toward the distal end side. doing.

導光部材６は、発光部３から発せられる赤外線を弾性部材７２の先端部の内面に導く機能を有している。導光部材６は、一端が発光部３の赤外線を射出する側の近傍に配置され、他端が中空部７Ａに配置されるように延出している。そして、導光部材６は、一端から入射する赤外線を内面で多重反射して他端側から射出する。
また導光部材６は、本体部に固定され、筆記部７が押圧により移動した場合でも、筆記部７に当接しないように、筆記部７と離間するように形成されている。なお、導光部材６が筆記部７と共に移動するように構成してもよい。この構成の場合、筆記部７が移動した場合でも、導光部材６が発光部３に当接しないように、導光部材６と発光部３とは、離間して配置される。 The light guide member 6 has a function of guiding infrared rays emitted from the light emitting unit 3 to the inner surface of the distal end portion of the elastic member 72. The light guide member 6 extends so that one end is disposed in the vicinity of the light emitting unit 3 on the side of emitting infrared rays and the other end is disposed in the hollow portion 7A. And the light guide member 6 inject | emits the infrared rays which inject from one end on the inner surface, and inject | emits from the other end side.
In addition, the light guide member 6 is fixed to the main body portion, and is formed so as to be separated from the writing portion 7 so as not to contact the writing portion 7 even when the writing portion 7 is moved by pressing. In addition, you may comprise so that the light guide member 6 may move with the writing part 7. FIG. In this configuration, even when the writing unit 7 moves, the light guide member 6 and the light emitting unit 3 are spaced apart so that the light guide member 6 does not contact the light emitting unit 3.

そして、本実施形態の電子ペンは、投写面ＳＣ上での操作で弾性部材７２が変形し、所定以上押圧されると発光部３が発光する。そして、発光部３から発せられた赤外線は、導光部材６に導かれ、弾性部材７２および滑性材７３を透過して外部に射出される。 In the electronic pen of the present embodiment, the elastic member 72 is deformed by an operation on the projection surface SC, and the light emitting unit 3 emits light when pressed more than a predetermined amount. The infrared rays emitted from the light emitting unit 3 are guided to the light guide member 6, pass through the elastic member 72 and the sliding material 73, and are emitted to the outside.

以上説明したように、本実施形態の電子ペンによれば、以下の効果を得ることができる。
（１）支持部材７１が第１実施形態における支持部材２１の積層部２１ｂに相当する部位を有さない形状なので、筆記部７の先端部の小型化が可能となる。よって、ユーザーは、操作面上における所望の位置をより的確に指し示すことが可能となる。よって、電子ペンのユーザーに不快感となる操作面との衝突音を低減させるとともに、操作性がより良好な電子ペンの提供が可能となる。 As described above, according to the electronic pen of the present embodiment, the following effects can be obtained.
(1) Since the support member 71 does not have a portion corresponding to the laminated portion 21b of the support member 21 in the first embodiment, the tip portion of the writing unit 7 can be downsized. Therefore, the user can more accurately indicate a desired position on the operation surface. Therefore, it is possible to provide an electronic pen with better operability while reducing the collision sound with the operation surface that causes discomfort to the user of the electronic pen.

（２）発光部３が筆記部７から離間して配置され、導光部材６によって発光部３からの赤外線が筆記部７に導かれる構成なので、発光部３を配置できる自由度が高まる。 (2) Since the light emitting unit 3 is arranged away from the writing unit 7 and the infrared light from the light emitting unit 3 is guided to the writing unit 7 by the light guide member 6, the degree of freedom in which the light emitting unit 3 can be arranged is increased.

（３）支持部材７１が発光部３からの赤外線を透過しない部材を採用できるので、支持部材７１の材料選定の自由度が高まる。 (3) Since the support member 71 can employ a member that does not transmit infrared rays from the light emitting unit 3, the degree of freedom in selecting the material of the support member 71 is increased.

なお、前記実施形態は、以下のように変更してもよい。
第１実施形態の弾性部材２２は、支持部材２１の外面全てを覆うように形成されているが、少なくとも先端部を有していれば、支持部材２１の外面全てを覆わないように構成してもよい。
図６は、変形例における筆記部８の断面図である。
筆記部８は、図６に示すように、支持部材８１、弾性部材８２および滑性材８３を備える。
支持部材８１は、図６に示すように、発光部３の光射出側を覆う積層部８１１、および発光部３の側方を覆う円筒状の筒状部８１２を有し、積層部８１１の外面が筒状部８１２の外面より凹むように形成されている。支持部材８１は、内面形状が第１実施形態における支持部材２１と同様に形成され、接続部材４１１のネジ溝４１１Ｓに螺合するネジ溝８１Ｓを有している。
弾性部材８２は、外面が曲面状に形成され、この外面が筒状部８１２の外面に倣うように積層部８１１の外面に取り付けられる。
滑性材８３は、弾性部材８２の外面に形成される。そして、滑性材８３が形成された弾性部材８２は、粘着剤や接着剤を介して支持部材８１に取り付けられる。
この変形例の構成によれば、弾性部材８２製造の簡素化が可能となる。 In addition, you may change the said embodiment as follows.
The elastic member 22 of the first embodiment is formed so as to cover the entire outer surface of the support member 21, but is configured so as not to cover the entire outer surface of the support member 21 as long as it has at least a tip portion. Also good.
FIG. 6 is a cross-sectional view of the writing unit 8 in the modification.
The writing unit 8 includes a support member 81, an elastic member 82, and a sliding material 83 as shown in FIG.
As shown in FIG. 6, the support member 81 includes a laminated portion 811 that covers the light emission side of the light emitting unit 3, and a cylindrical tubular portion 812 that covers the side of the light emitting unit 3, and the outer surface of the laminated portion 811. Is formed so as to be recessed from the outer surface of the cylindrical portion 812. The support member 81 has an inner surface shape that is the same as that of the support member 21 in the first embodiment, and has a screw groove 81S that is screwed into the screw groove 411S of the connection member 411.
The elastic member 82 has an outer surface formed in a curved shape, and is attached to the outer surface of the laminated portion 811 so that the outer surface follows the outer surface of the cylindrical portion 812.
The slip material 83 is formed on the outer surface of the elastic member 82. And the elastic member 82 in which the slip material 83 was formed is attached to the support member 81 via an adhesive or an adhesive agent.
According to the configuration of this modified example, it is possible to simplify the production of the elastic member 82.

第１実施形態の弾性部材２２は、シリコンゴムで形成されているが、シリコンゴムに限らず、他のエラストマー、例えば、ウレタンゴム、クロロプレンゴム、エチレンプロピレンゴム等のゴム材や熱可塑性エラストマーであってもよい。 The elastic member 22 of the first embodiment is formed of silicon rubber, but is not limited to silicon rubber, and may be other elastomers, such as rubber materials such as urethane rubber, chloroprene rubber, ethylene propylene rubber, or thermoplastic elastomers. May be.

第１実施形態の滑性材２３は、セラミックで形成されているが、セラミックに限らず、フッ素を含有する材料、例えばポリテトラフルオロエチレン（ＰＴＦＥ）等のフッ素樹脂等であってもよく、また、この材料を塗装等により、弾性部材２２の外面に形成してもよい。
この構成によれば、容易に弾性部材２２の外面に滑性材２３を形成することが可能となる。
また、滑性材２３としてセラミック粒子等の滑り性が弾性部材２２より高い材料の粒子を用い、この粒子を結合剤を用いて弾性部材２２の外面に形成するように構成してもよい。 The slipping material 23 of the first embodiment is made of ceramic, but is not limited to ceramic, and may be a fluorine-containing material, for example, a fluororesin such as polytetrafluoroethylene (PTFE). This material may be formed on the outer surface of the elastic member 22 by painting or the like.
According to this configuration, it is possible to easily form the slipping material 23 on the outer surface of the elastic member 22.
Alternatively, the sliding material 23 may be configured such that particles of a material having a higher sliding property than the elastic member 22 such as ceramic particles are used, and the particles are formed on the outer surface of the elastic member 22 using a binder.

前記実施形態では、発光部３が赤外線を発する構成を示したが発光部３が赤外線とは異なる波長帯の光を発し、筆記部２，７，８がこの波長帯の光を透過し、導光部材６がこの波長帯の光を導く部材で形成されるように構成してもよい。 In the above embodiment, the light emitting unit 3 emits infrared light. However, the light emitting unit 3 emits light having a wavelength band different from that of the infrared light, and the writing parts 2, 7, and 8 transmit light of this wavelength band and guide light. You may comprise so that the optical member 6 may be formed with the member which guides the light of this wavelength band.

第１実施形態の電子ペン１は、発光部３が筆記部２の中空部２Ａ内に配置されるように構成されているが、発光部３を筆記部２から離間して本体部４に配置し、発光部３からの光を中空部２Ａ内に導く導光部材を備えるように構成してもよい。
また、第２実施形態の電子ペンは、発光部３が筆記部７から離間して本体部に配置され、導光部材６を備えるように構成されているが、導光部材６を備えず、発光部３が筆記部７の中空部７Ａ内に配置されるように構成してもよい。 The electronic pen 1 according to the first embodiment is configured such that the light emitting unit 3 is disposed in the hollow portion 2A of the writing unit 2, but the light emitting unit 3 is disposed in the main body unit 4 away from the writing unit 2. And you may comprise so that the light guide member which guides the light from the light emission part 3 in the hollow part 2A may be provided.
Further, the electronic pen of the second embodiment is configured such that the light emitting unit 3 is disposed in the main body unit apart from the writing unit 7 and includes the light guide member 6, but does not include the light guide member 6. You may comprise so that the light emission part 3 may be arrange | positioned in the hollow part 7A of the writing part 7. FIG.

第２実施形態の電子ペンは、支持部材７１と導光部材６とが別体で構成されているが、支持部材７１と導光部材６とを一体的に形成してもよい。 In the electronic pen according to the second embodiment, the support member 71 and the light guide member 6 are configured separately, but the support member 71 and the light guide member 6 may be integrally formed.

前記実施形態の筆記部２，７は、支持部材２１，７１を備えて構成されているが、支持部材を備えない筆記部を構成し、この筆記部における弾性部材が本体部（例えば、第１実施形態における接続部材４１１）に着脱可能に係合されるように形成される構成であってもよい。 Although the writing parts 2 and 7 of the said embodiment are provided with the supporting members 21 and 71, they comprise the writing part which does not have a supporting member, and the elastic member in this writing part is a main-body part (for example, 1st The configuration may be such that the connection member 411) in the embodiment is detachably engaged.

前記実施形態の本体部４は、筆記部２（接続部材４１１）の移動によって、スイッチ機構４１の接続状態が変わることを利用して筆記部２への押圧を検出するように構成されているが、この構成に限らない。例えば、スイッチ機構４１に替えて接続部材４１１の変形を検知する圧電素子や歪ゲージ等の検出装置を備える構成とし、この検出装置の検出結果に基づいて、本体部４が筆記部２への押圧を検出するように構成してもよい。 Although the main-body part 4 of the said embodiment is comprised so that the press to the writing part 2 may be detected using the change of the connection state of the switch mechanism 41 by the movement of the writing part 2 (connection member 411). The configuration is not limited to this. For example, instead of the switch mechanism 41, a configuration including a detection device such as a piezoelectric element or a strain gauge that detects the deformation of the connection member 411, and the main body 4 presses the writing unit 2 based on the detection result of the detection device. You may comprise so that it may detect.

前記実施形態では、投写面ＳＣの前面側から画像を投写するプロジェクター２０を備える表示システム１０に電子ペン１を用いる態様を説明したが、この態様以外の表示システムに電子ペン１を用いるように構成してもよい。例えば、投写面の背面側から画像を投写するリア型のプロジェクターを用い、この投写面を操作面として電子ペン１を用いる構成や、画像が投写される投写面に替えて、液晶ディスプレイ、ＣＲＴ（Cathode Ray Tube）、プラズマディスプレイ、有機ＥＬディスプレイ等を用い、これらの装置が備える表示面を操作面として電子ペン１を用いる構成であってもよい。 In the embodiment, the aspect in which the electronic pen 1 is used in the display system 10 including the projector 20 that projects an image from the front side of the projection surface SC has been described. However, the electronic pen 1 is configured to be used in a display system other than this aspect. May be. For example, a rear-type projector that projects an image from the back side of the projection surface, the configuration using the electronic pen 1 as the operation surface, or a projection surface on which an image is projected is replaced with a liquid crystal display, CRT ( Cathode Ray Tube), a plasma display, an organic EL display, or the like may be used, and the electronic pen 1 may be used with the display surface provided in these devices as an operation surface.

１…電子ペン、２，７，８…筆記部、３…発光部、２Ａ，７Ａ…中空部、４…本体部、５…外装筐体、１０…表示システム、２０…プロジェクター、２１，７１，８１…支持部材、２２，７２，８２…弾性部材、２３，８３…滑性材、４１…スイッチ機構、４２…回路ユニット。 DESCRIPTION OF SYMBOLS 1 ... Electronic pen, 2, 7, 8 ... Writing part, 3 ... Light emission part, 2A, 7A ... Hollow part, 4 ... Main-body part, 5 ... Exterior casing, 10 ... Display system, 20 ... Projector, 21, 71, 81 ... support member, 22, 72, 82 ... elastic member, 23, 83 ... slippery material, 41 ... switch mechanism, 42 ... circuit unit.

Claims

An electronic pen that has a light emitting unit, and the light emitting unit emits light by an operation in which a tip is pressed against an operation surface,
A writing portion having the tip portion and transmitting light emitted by the light emitting portion;
A main body that supports the writing unit, detects a press on the writing unit, and causes the light emitting unit to emit light;
With
The writing part is
An elastic member having the tip,
A support member that holds the elastic member and is detachably supported by the main body;
A slippery material formed on the outer surface of the elastic member;
With
The inner surface of the support member is provided with a thread groove,
The writing part is supported by the main body part through the screw groove of the support member,
The slippery material is made of a material having a slipperiness higher than that of the elastic member, and is formed so as to maintain close contact with the elastic member following the deformation and restoration of the elastic member. pen.

The electronic pen according to claim 1,
The electronic pen according to claim 1, wherein the elastic member has elasticity that is deformed by a pressing force smaller than a pressing force to the writing unit that emits light from the light emitting unit.

The electronic pen according to claim 1 or 2 ,
The writing part has a hollow part that opens on the opposite side of the tip part,
The electronic pen according to claim 1, wherein the light emitting part is disposed in the hollow part.

The electronic pen according to any one of claims 1 to 3 ,
The electronic pen, wherein the elastic member is an elastomer.

The electronic pen according to claim 4 ,
The electronic pen according to claim 1, wherein the lubricant is ceramic.

The electronic pen according to claim 4 ,
The electronic pen according to claim 1, wherein the lubricant is a material containing fluorine.

The electronic pen according to any one of claims 1 to 6 ,
The distal end portion of the elastic member is such that the outer shape of the cross section on a plane passing through the central axis of the writing portion has a vertex on the central axis, and the distance from the central axis increases as the distance from the vertex increases. It is formed into a curved surface that becomes a curve,
The electronic pen according to claim 1, wherein the sliding material is provided at least at the tip.