JP6550725B2

JP6550725B2 - Electronic pen

Info

Publication number: JP6550725B2
Application number: JP2014226727A
Authority: JP
Inventors: 伸行大月; 聖中西; 洋平酒井; 大吾山野; 新井　健; 健新井
Original assignee: Seiko Epson Corp
Current assignee: Seiko Epson Corp
Priority date: 2014-11-07
Filing date: 2014-11-07
Publication date: 2019-07-31
Anticipated expiration: 2034-11-07
Also published as: JP2016091399A

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, there is known a system that includes 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. 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. Then, the projector is configured to be able to detect light emitted by the electronic pen and to project information related to the locus of the electronic pen on original image information and to project it.

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.
The shaft has a light emitting diode attached to its tip and is tiltably supported by the support member. 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 substrate is 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.
Then, the electronic pen described in Patent Document 1 is held by the user and the cap is pressed against the projection surface, whereby the cap and the shaft tilt, and the tilt detection mechanism operates according to the tilt, and the main substrate Makes the light emitting diode 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, in the electronic pen described in Patent Document 1, depending on the user operating the electronic pen, when bringing the cap into contact with the projection surface, the cap may be operated so as to collide with the projection surface. There is a problem in that a collision sound that causes discomfort is generated. In addition, the feel of the writing operation in the state where the cap and the projection surface are in contact is largely different from the feel of the writing operation of a marker pen or the like on a white board or the like, so there is a problem of giving the user a sense of discomfort.

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。 The present invention has been made to solve at least a part of the above-described problems, and can be realized as the following modes 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、前記本体部に支持される支持部材と、前記先端部を有し、前記支持部材に保持される弾性部材と、を備えることを特徴とする。 Application Example 1 An electronic pen according to this application example is an electronic pen having a light emitting portion, and the light emitting portion emits light by an operation in which the tip end portion is pressed against the operation surface, and has the tip end portion. 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. It is provided with the supporting member supported by a main-body part, and the elastic member which has the said front-end | tip part and is hold | maintained at the said supporting member.

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、弾性部材は、支持部材によって保持され、筆記部は、支持部材が本体部に支持される。これによって、弾性部材を確実に保持するとともに、筆記部への押圧力を支持部材から本体部に伝え、本体部の筆記部への押圧の検出を確実に行うことが可能となる。 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.
Further, the elastic member is held by the support member, and the writing unit is supported by the main body portion. As a result, the elastic member can be securely held, and the pressing force applied to the writing unit can be transmitted from the support member to the main body unit to reliably detect the pressing of the main body unit to the writing unit.

［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, it is preferable that the elastic member has an elasticity that deforms with a pressing force smaller than a pressing force on the writing unit from which the light emitting unit 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、前記支持部材は、前記弾性部材における前記先端部の内側に積層される積層部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 support member has a stacked portion that is stacked inside the tip portion of the elastic member.

この構成によれば、弾性部材で形成される先端部の内側には、支持部材の積層部が配置されるので、押圧される先端部を積層部で受けることができる。よって、先端部の過度な変形を抑制することができる。 According to this configuration, since the laminated portion of the support member is disposed inside the tip portion formed of the elastic member, the pressed tip portion can be received by the laminated portion. Thus, excessive deformation of the tip can be suppressed.

［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, it is preferable that the writing unit has a hollow portion opened on the opposite side of the tip end, and the light emitting unit is disposed in the hollow portion.

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, the loss of light emitted from the light emitting unit can be suppressed and efficiently transmitted from the writing unit to the outside. Therefore, it is possible to adopt a small-sized light emitting unit and save power of the light emitted from the light emitting unit.

［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、繊維状の部材が絡み合った部材であることが好ましい。 Application Example 5 In the electronic pen according to the application example, it is preferable that the elastic member is a member in which a fibrous member is entangled.

この構成によれば、電子ペンが操作される際には、弾性部材である繊維状の部材が操作面に当接し、この繊維状の部材が変形して操作されることとなる。よって、筆記部が操作面に当接する際の衝突音が低減するとともに、筆記部の操作面に対する摩擦抵抗が小さいので、ユーザーは、電子ペンを操作面上で滑らかに移動させることが可能となる。したがって、電子ペンのユーザーに不快感となる衝突音を低減させるとともに、操作感が良好な電子ペンの提供が可能となる。 According to this configuration, when the electronic pen is operated, the fibrous member as the elastic member abuts on the operation surface, and the fibrous member is deformed and operated. Therefore, the collision noise when the writing unit abuts on the operation surface is reduced, and the frictional resistance to the operation surface of the writing unit is small, so that the user can move the electronic pen smoothly on the operation surface. . Therefore, it is possible to provide an electronic pen with a good operational feeling while reducing the impact sound that causes discomfort to the user of the electronic pen.

［適用例６］上記適用例に係る電子ペンにおいて、前記弾性部材は、発泡部材であることが好ましい。 Application Example 6 In the electronic pen according to the application example, the elastic member is preferably a foam member.

この構成によれば、電子ペンが操作される際には、弾性部材である発泡部材が操作面に当接し、この発泡部材が変形して操作されることとなる。よって、筆記部が操作面に当接する際の衝突音が低減するとともに、筆記部の操作面に対する摩擦抵抗が小さいので、ユーザーは、電子ペンを操作面上で滑らかに移動させることが可能となる。したがって、電子ペンのユーザーに不快感となる衝突音を低減させるとともに、操作感が良好な電子ペンの提供が可能となる。 According to this configuration, when the electronic pen is operated, the foam member as the elastic member abuts on the operation surface, and the foam member is deformed and operated. Therefore, the collision noise when the writing unit abuts on the operation surface is reduced, and the frictional resistance to the operation surface of the writing unit is small, so that the user can move the electronic pen smoothly on the operation surface. . Therefore, it is possible to provide an electronic pen with a good operational feeling while reducing the impact sound that causes discomfort to the user of the electronic pen.

［適用例７］上記適用例に係る電子ペンにおいて、前記支持部材は、前記本体部に着脱可能に支持されていることが好ましい。 Application Example 7 In the electronic pen according to the application example, it is preferable that the support member is detachably supported by the main body.

この構成によれば、支持部材が本体部に着脱可能に支持されているので、先端部を形成する弾性部材の損傷や汚れ等が発生した場合であっても、本体部を分解することなく、筆記部を容易に交換することができる。 According to this configuration, the support member is detachably supported by the main body, so that the main body is not disassembled even if damage or dirt or the like of the elastic member forming the tip end occurs. The writing unit can be easily replaced.

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。FIG. 1 is a schematic view showing a schematic configuration of a display system using an electronic pen according to a first embodiment. 第１実施形態の電子ペンの外観を示す斜視図。BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the external appearance of the electronic pen of 1st 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 view showing a schematic configuration of a display system 10 using the electronic pen 1 according to the present embodiment.
The display system 10 includes a projector 20, a whiteboard having a projection surface SC, and the like in addition to the electronic pen 1, and the graphic projected by the projector 20 onto the projection surface SC by the user's operation of the electronic pen 1. It is configured to be able to overlap and display characters and the like.

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 the detailed description is omitted, the projector 20 includes an image projection unit that projects an image according to the input image information on the projection plane SC, and an imaging unit that images the projection plane SC. Then, 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 this transmission position in the image information. The superimposed image in which the indicated lines are superimposed is projected on the projection surface SC. The projection surface SC is an operation surface operated by pressing the tip of the electronic pen 1. Here, the tip end portion of the electronic pen 1 refers to a portion pressed by the projection surface SC by the operation of the user. 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. It is pressed by.

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 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 unit 2 having a tip, a light emitting unit 3 housed in the writing unit 2, and a main unit 4 for supporting the writing unit 2, and the tip is a projection surface 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 accommodates 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、本体部４に支持される支持部材２１、および支持部材２１に保持される弾性部材２２を備え、先端部は、弾性部材によって構成されている。筆記部２は、先端部の反対側が開口する中空部２Ａを有し、支持部材２１の外側に弾性部材２２が積層されるように構成されている。そして、支持部材２１の内面にはネジ溝２１Ｓ（図４（ａ）参照）が設けられている。 Although the writing unit 2 will be described in detail later, as shown in FIG. 3, the writing unit 2 includes a support member 21 supported by the main body 4 and an elastic member 22 held by the support member 21. It is comprised by the member. The writing unit 2 has a hollow portion 2A opened at the opposite side of the tip end portion, and the elastic member 22 is laminated on the outside of the support member 21. The inner surface of the support member 21 is provided with a screw groove 21S (see FIG. 4A).

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 configured by a light emitting diode that emits infrared light, and as shown in FIG. 3, is disposed in the hollow portion 2A of the writing unit 2 and 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（ａ）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 is threadably engaged with a thread groove 21 </ b> S (see FIG. 4A) of the support member 21 on the outer peripheral surface on one end side of the cylindrical shape. The screw groove 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、容易に着脱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 3T is disposed by being inserted into the inside of the connection member 411.
The writing unit 2 is connected to the connection member 411 by screwing the screw groove 21 </ b> S of the support member 21 into the screw groove 411 </ b> S of the connection member 411. That is, the writing unit 2 is configured to be easily removable without disassembling the main body unit 4. The light emitting unit 3 and the connection 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 moves the connection member 411 together with the writing unit 2 to change the connection state of the plurality of electrical connection members, and the control unit changes the connection state to emit light. The part 3 is caused to emit light. Here, the movement of the writing unit 2 and the connection member 411 refers to tilting of the writing unit 2 with respect to the central axis Ax or movement to the main body 4 side along the central axis Ax of the writing unit 2.

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 in accordance with the operation of the switch mechanism 41 accompanying the movement of the writing unit 2. As described above, the main body unit 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 plus terminal 42A connected to the plus terminal of the battery 43, and a minus terminal (not shown) connected to the minus terminal of the battery 43. The plus terminal 42A and the minus 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 the present embodiment is configured of a single 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 exterior housing 5 has a substantially cylindrical outer shape, and a case main body 51, a frame 52 positioned on the writing portion 2 side of the case main body 51, and a battery cover 53. Equipped with
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 main body 51 in the vicinity of the end opposite to the writing portion 2, and a hole for attaching a strap (shown in FIG. ) Is provided. The bulging portion 511 also has a function of preventing rolling of the electronic pen 1 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 cover 53 is detachably disposed on the case main body 51 so as to cover the battery 43 housed in the case main 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を説明するための図である。具体的に、図４（ａ）は筆記部２の断面図、図４（ｂ）は、筆記部２における弾性部材２２の断面図であり、組み立て前の状態を示す模式図である。
筆記部２は、図４（ａ）に示すように、また、前述したように、支持部材２１および弾性部材２２を備える。 [Composition of writing part]
Here, the writing unit 2 will be described in detail.
FIG. 4 is a diagram for explaining the writing unit 2. Specifically, FIG. 4A is a cross-sectional view of the writing unit 2, and FIG. 4B is a cross-sectional view of the elastic member 22 in the writing unit 2, and is a schematic diagram showing a state before assembly.
The writing unit 2 includes the support member 21 and the elastic member 22 as shown in FIG. 4A and as described above.

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。 The support member 21 is formed of a synthetic resin that transmits infrared rays emitted by the light emitting unit 3 and has a function of protecting the light emitting unit 3 in addition to the function of holding the elastic member 22 and the function supported by the main body 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.

支持部材２１は、図４（ａ）に示すように、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、中央には、前述した中空部２Ａが設けられている。
筒状部２１ａには、内面に前述したネジ溝２１Ｓが設けられ、外面に突起２１１が形成されている。 As shown in FIG. 4A, the support member 21 has a cylindrical portion 21a in a cylindrical shape and a laminated portion 21b covering the light emitting side of the light emitting portion 3, and the hollow portion 2A described above is at the center. It is provided.
The screw groove 21S described above is provided on the inner surface of the cylindrical portion 21a, and the protrusion 211 is formed on the outer surface.

弾性部材２２は、繊維状の部材が絡み合った部材、所謂、フェルト材で形成されており、発光部３が発する赤外線を透過する。具体的に、弾性部材２２は、例えば、合成繊維を主体とする部材で形成されている。
弾性部材２２は、図４（ｂ）に示すように、単品状態（組み立て前の状態）で先端部が凸状に形成され、先端部の反対側が平坦状に形成され、中空を有しないように形成されている。そして、弾性部材２２は、平坦状の側から支持部材２１が挿入され、図４（ａ）に示すように、筒状部２１ａおよび積層部２１ｂの外面を覆うように配置される。また、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。そして、弾性部材２２は、繊維状の部材が突起２１１に係合して支持部材２１に保持される。なお、弾性部材２２の表面に汚れ防止処理や、繊維のほつれを防止する処理等を施してもよい。 The elastic member 22 is formed of a so-called felt material in which fibrous members are intertwined, and transmits infrared rays emitted from the light emitting unit 3. Specifically, the elastic member 22 is formed of, for example, a member mainly made of synthetic fiber.
As shown in FIG. 4 (b), the end of the elastic member 22 is formed in a convex shape in a single-piece state (the state before assembly), and the opposite side of the end is formed flat and does not have a hollow. It is formed. Then, the elastic member 22 is arranged so that the support member 21 is inserted from the flat side and covers the outer surfaces of the cylindrical portion 21a and the laminated portion 21b as shown in FIG. Further, the laminated portion 21 b is laminated on the inside of the tip end portion of the elastic member 22. The elastic member 22 is held by the support member 21 by engaging the fibrous member with the protrusion 211. The surface of the elastic member 22 may be subjected to a stain preventing process, a process for preventing the fraying of fibers, and the like.

弾性部材２２は、支持部材２１が挿入されることによって外周部より中央部がより圧縮されるので、中央部の密度は外周部の密度より高いものとなる。
そして、弾性部材２２は、支持部材２１が挿入された状態で、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するような部材が採用されている。すなわち、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、筆記部２が移動する前、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。 The elastic member 22 is more compressed at the center than at the outer periphery when the support member 21 is inserted, so the density of the center is higher than the density of the outer periphery.
The elastic member 22 is a member having elasticity that is deformed with a pressing force smaller than the pressing force to the writing unit 2 that the light emitting unit 3 emits light in a state where the support member 21 is inserted. That is, the elastic member 22 has elasticity such that when the user presses the electronic pen 1 against the projection surface SC, the writing member 2 is deformed before the writing unit 2 moves, that is, before the light emitting unit 3 emits infrared light. .

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。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 attached to the main body 4 by screwing the screw groove 21S of the support member 21 into the screw groove 411S of the connecting member 411 as described above. The writing unit 2 is restored to its original shape when the elastic member 22 forming the tip end is deformed according to the operation of the user and is operated so as to release the pressure from the projection surface SC. The light emitting unit 3 emits light when the tip of the writing unit 2 is pressed more than a predetermined amount, and the infrared light emitted from the light emitting unit 3 transmits 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。よって、電子ペン１のユーザーに不快感となる衝突音を低減し、操作感が良好な電子ペン１の提供が可能となる。
また、弾性部材２２は、支持部材２１によって保持され、筆記部２は、支持部材２１が本体部４に支持される。これによって、弾性部材２２を確実に保持するとともに、筆記部２への押圧力を支持部材２１から本体部４に伝え、本体部４の筆記部２への押圧の検出を確実に行うことが可能となる。 As described above, according to the electronic pen 1 of the present embodiment, the following effects can be obtained.
(1) The tip of the writing unit 2 of the electronic pen 1 is made of the elastic member 22. Therefore, when the writing unit 2 is pressed against the projection surface SC, the elastic member 22 is deformed. This makes it possible to reduce the collision sound when the writing unit 2 abuts on the projection surface SC and to improve the feel of the writing operation in the state where the writing unit 2 abuts on the projection surface SC. Therefore, it is possible to reduce the collision noise which is uncomfortable for the user of the electronic pen 1 and to provide the electronic pen 1 having a good operation feeling.
The elastic member 22 is held by the support member 21, and the writing unit 2 is supported by the main body unit 4 in the writing unit 2. As a result, the elastic member 22 can be reliably held, and the pressing force on the writing unit 2 can be transmitted from the support member 21 to the main body 4 to reliably detect the pressure on the writing unit 2 of the main body 4 It becomes.

（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. As a result, it is possible to reliably reduce the collision sound which is uncomfortable for the user of the electronic pen 1 when the writing unit 2 is pressed against the projection surface SC.

（３）弾性部材２２で形成される先端部の内側には、支持部材２１の積層部２１ｂが配置されるので、押圧される先端部を積層部２１ｂで受けることができる。よって、先端部の過度な変形を抑制することや、変形した弾性部材２２が発光部３に当接することを防止できる。 (3) Since the stacked portion 21b of the support member 21 is disposed inside the tip portion formed by the elastic member 22, the pressed tip portion can be received by the stacked portion 21b. Therefore, it is possible to prevent excessive deformation of the tip end portion and to prevent the deformed elastic member 22 from coming into contact with the light emitting portion 3.

（４）発光部３は、筆記部２の中空部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) The light emitting unit 3 is disposed in the hollow portion 2A of the writing unit 2, so that 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 becomes possible to adopt the small-sized light emitting unit 3 and to save power of the light which causes the light emitting unit 3 to emit light.

（５）弾性部材２２は、繊維状の部材が絡み合った部材なので、電子ペン１が操作される際には、弾性部材２２である繊維状の部材が投写面ＳＣに当接し、この繊維状の部材が変形して操作されることとなる。よって、筆記部２が投写面ＳＣに当接する際の衝突音が低減するとともに、弾性部材２２の投写面ＳＣに対する摩擦抵抗が小さいので、ユーザーは、電子ペン１を投写面ＳＣ上で滑らかに移動させることが可能となる。 (5) Since the elastic member 22 is a member in which fibrous members are intertwined, when the electronic pen 1 is operated, the fibrous member which is the elastic member 22 abuts on the projection surface SC, and this fibrous The member is deformed and operated. Therefore, the collision noise when the writing unit 2 abuts on the projection surface SC is reduced, and the frictional resistance of the elastic member 22 to the projection surface SC is small. Therefore, the user smoothly moves the electronic pen 1 on the projection surface SC It becomes possible to make it.

（６）筆記部２は、本体部４に着脱可能に支持されているので、先端部を形成する弾性部材２２の損傷や汚れ等が発生した場合であっても、本体部４を分解することなく、筆記部２を容易に交換することができる。 (6) Since the writing unit 2 is detachably supported by the main body 4, disassembling the main body 4 even if damage, dirt or the like of the elastic member 22 forming the tip end occurs. The writing unit 2 can be easily replaced.

（７）弾性部材２２に中空となる部位を設けなくとも、弾性部材２２を支持部材２１に取り付けることができるので、弾性部材２２および筆記部２の製造が容易となる。
また、弾性部材２２は、突起２１１に係合して支持部材２１に保持される構造なので、弾性部材２２のみの交換も容易に可能となる。 (7) Since the elastic member 22 can be attached to the support member 21 without providing a hollow portion in the elastic member 22, the elastic member 22 and the writing unit 2 can be easily manufactured.
Further, since the elastic member 22 is structured to be engaged with the protrusion 211 and held by the support member 21, it is possible to easily replace only the elastic member 22.

（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。 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 portion 7A of the writing unit 7 by the light guide member 6. Moreover, the light emission part 3 is fixed and arrange | positioned at a main-body part.

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を保持し、本体部に着脱可能に支持される支持部材７１を備える。
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（ａ）参照）に相当する部位を有さない円筒状に形成されており、内面には、第１実施形態における支持部材２１のネジ溝２１Ｓと同様に形成されたネジ溝７１Ｓが形成されている。また、支持部材７１には、先端部側に形成され、先端部とは反対側の外径より小さな外径の筒状部７１１が設けられている。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。 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 holds the elastic member 72 and is detachably supported by the main body portion.
The support member 71 is formed in a cylindrical shape that does not have a portion corresponding to the laminated portion 21b (see FIG. 4A) in the support member 21 of the first embodiment, and an inner surface thereof is the same as in the first embodiment. A screw groove 71S formed similarly to the screw groove 21S of the support member 21 is formed. Further, the support member 71 is provided with a cylindrical portion 711 formed on the tip end side and having an outer diameter smaller than the outer diameter on the opposite side to the tip end. The support member 71 is not limited to a member that transmits the infrared light emitted by the light emitting unit 3, and a member that does not transmit the infrared light can also be employed.

弾性部材７２は、発光部３から発せられる赤外線を透過する発泡部材が用いられている。具体的に、弾性部材７２は、ウレタンゴムやシリコンゴム等のゴム材や合成樹脂等を所定の率で発泡させた部材で形成されており、空気の侵入が可能な多孔を有している。
弾性部材７２は、図５に示すように、先端部が凸状に形成され、先端部の反対側が凹状に形成されており、この凹状の部位に支持部材７１の筒状部７１１が挿入されて支持部材７１に粘着剤や接着剤を介して固定されている。 As the elastic member 72, a foam member that transmits infrared rays emitted from the light emitting unit 3 is used. Specifically, the elastic member 72 is formed of a member obtained by foaming a rubber material such as urethane rubber or silicone rubber, a synthetic resin, or the like at a predetermined rate, and has a porosity that allows air to enter.
As shown in FIG. 5, the end of the elastic member 72 is formed in a convex shape, and the opposite side of the end is formed in a concave shape, and the cylindrical portion 711 of the support member 71 is inserted into the concave portion. It is fixed to the support member 71 via an adhesive or an adhesive.

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 the infrared ray emitted from the light emitting unit 3 to the inner surface of the tip 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. Then, the light guide member 6 multiple-reflects an infrared ray incident from one end on the inner surface, and emits it from the other end side.
Further, the light guide member 6 is fixed to the main body, and is formed to be separated from the writing unit 7 so as not to abut on the writing unit 7 even when the writing unit 7 is moved by pressing. The light guide member 6 may be configured to move together with the writing unit 7. 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.

筆記部７は、第１実施形態の筆記部２と同様に、支持部材７１のネジ溝７１Ｓが本体部に螺合されて本体部に支持される。筆記部７は、先端部を形成する弾性部材７２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、本実施形態の電子ペンは、筆記部７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、導光部材６に導かれ、弾性部材７２を透過して外部に射出される。 Similarly to the writing unit 2 of the first embodiment, in the writing unit 7, the screw groove 71 </ b> S of the support member 71 is screwed into the main unit and supported by the main unit. The writing unit 7 is restored to the original shape when the elastic member 72 forming the tip end is deformed in response to the operation of the user and the pressing from the projection surface SC is released. In the electronic pen of this embodiment, the light emitting unit 3 emits light when the tip of the writing unit 7 is pressed a predetermined amount or more, and the infrared light emitted from the light emitting unit 3 is guided to the light guiding member 6 and the elastic member It passes through 72 and is ejected 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。
弾性部材７２は、発泡部材なので、電子ペンが操作される際には、弾性部材７２である発泡部材が投写面ＳＣに当接し、この発泡部材が変形して操作されることとなる。よって、筆記部７が投写面ＳＣに当接する際の衝突音が低減するとともに、多孔を有する弾性部材７２の投写面ＳＣに対する摩擦抵抗が小さいので、ユーザーは、電子ペンを投写面ＳＣ上で滑らかに移動させることが可能となる。 As described above, according to the electronic pen of the present embodiment, the following effects can be obtained.
Since the elastic member 72 is a foam member, when the electronic pen is operated, the foam member, which is the elastic member 72, comes into contact with the projection surface SC, and the foam member is deformed and operated. Therefore, the collision noise when the writing unit 7 abuts on the projection surface SC is reduced, and the frictional resistance of the elastic member 72 having a hole to the projection surface SC is small. Therefore, the user smoothes the electronic pen on the projection surface SC It is possible to move to

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および弾性部材８２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、図示は省略するが、第１実施形態における弾性部材２２と同様に、単品状態（組み立て前の状態）で先端部が凸状に形成され、先端部の反対側が平坦状に形成されている。そして、弾性部材８２は、平坦状の側から支持部材８１が挿入され、図６に示すように、積層部８１１の外面に粘着剤や接着剤を介して取り付けられる。
この変形例の構成によれば、第１実施形態の筆記部２の組立時における弾性部材２２の圧縮量より小さな圧縮量で弾性部材８２を支持部材８１に保持させる構成が可能となる。 The above embodiment may be modified 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. It is 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 and an elastic member 82 as shown in FIG.
As shown in FIG. 6, the support member 81 has a laminated portion 811 covering the light emission side of the light emitting portion 3 and a cylindrical tubular portion 812 covering the side of the light emitting portion 3, and the outer surface of the laminated portion 811 Are formed 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 is not shown, but like the elastic member 22 in the first embodiment, the tip end portion is formed in a convex shape in a single-piece state (state before assembly), and the opposite side of the tip portion is formed flat. It is done. The elastic member 82 has the support member 81 inserted from the flat side, and is attached to the outer surface of the laminated portion 811 via an adhesive or adhesive as shown in FIG.
According to the configuration of this modification, it is possible to hold the elastic member 82 on the support member 81 with a compression amount smaller than the compression amount of the elastic member 22 at the time of assembling the writing unit 2 of the first embodiment.

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。 Although the light emitting unit 3 emits infrared light in the above embodiment, the light emitting unit 3 emits light of a wavelength band different from infrared light, and the writing units 2, 7 and 8 transmit light of this wavelength band, The light guide member 6 may be formed of a member for guiding light in 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 of 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 unit 4 while being separated from the writing unit 2 Alternatively, a light guide member may be provided to guide the light from the light emitting unit 3 into the hollow portion 2A.
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. The light emitting unit 3 may be arranged in the hollow portion 7A of the writing unit 7.

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 of the second embodiment, the support member 71 and the light guide member 6 are separately formed, but the support member 71 and the light guide member 6 may be integrally formed.

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 unit 4 of the embodiment is configured to detect the pressing on the writing unit 2 by using the fact that the connection state of the switch mechanism 41 is changed by the movement of the writing unit 2 (connection member 411). The configuration is not limited to this. For example, instead of the switch mechanism 41, a detection device such as a piezoelectric element or strain gauge that detects deformation of the connection member 411 is provided, and the main body 4 presses the writing unit 2 based on the detection result of this 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 described above, the aspect using the electronic pen 1 in the display system 10 provided with the projector 20 for projecting an image from the front side of the projection surface SC has been described, but the electronic pen 1 is used in display systems 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、２１ｂ，８１１…積層部、２２，７２，８２…弾性部材、４１…スイッチ機構、４２…回路ユニット、ＳＣ…投写面（操作面）。 DESCRIPTION OF SYMBOLS 1 ... Electronic pen, 2, 7, 8 ... Writing part, 3 ... Light emission part, 2A, 7A ... Hollow part, 4 ... Body part, 5 ... Exterior housing, 10 ... Display system, 20 ... Projector, 21, 71, 81: support member, 21b, 811: laminated portion, 22, 72, 82: elastic member, 41: switch mechanism, 42: circuit unit, SC: projection surface (operation surface).

Claims

A light emitting unit that emits light by pressing the front end portion against the operation surface;
A writing unit having the tip and transmitting light emitted by the light emitting unit;
A main unit that supports the writing unit, detects a pressure on the writing unit, and causes the light emitting unit to emit light;
Equipped with
The main body portion includes a connection member in which a first thread groove is formed and connected to the writing portion;
The writing unit is
A support member formed with a second thread and connected to the connection member;
An elastic member having the tip portion and held by the support member;
Equipped with
The support member has a tubular portion having a protrusion for holding the elastic member on the outer surface, and a laminated portion covering the light emission side of the light emitting portion,
The second screw groove is provided on the inner surface of the cylindrical portion,
An electronic pen, wherein the writing portion is detachably supported by the main body portion by screwing the first screw groove and the second screw groove.

The electronic pen according to claim 1, wherein
The first screw groove, electronic pen, characterized in that formed on the outer circumferential surface of the connecting member.

The electronic pen according to claim 1 or 2, wherein
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 any one of claims 1 to 3 , wherein
The writing unit has a hollow portion opened on the opposite side of the tip,
The electronic pen characterized in that the light emitting part is disposed in the hollow part.

The electronic pen according to any one of claims 1 to 4 , wherein
The electronic pen characterized in that the elastic member is a member in which fibrous members are intertwined.

The electronic pen according to any one of claims 1 to 4 , wherein
The electronic pen characterized in that the elastic member is a foam member.