JP6468436B2

JP6468436B2 - Coil device for electronic pen

Info

Publication number: JP6468436B2
Application number: JP2015108751A
Authority: JP
Inventors: 小林　一三; 一三小林; 伸夫北島
Original assignee: TDK Corp
Current assignee: TDK Corp
Priority date: 2015-05-28
Filing date: 2015-05-28
Publication date: 2019-02-13
Anticipated expiration: 2035-05-28
Also published as: JP2016224613A

Description

本発明は、たとえばコンピュータに所望の情報を入力するための電子ペンの内部に装着される電子ペン用コイル装置に関する。 The present invention relates to a coil device for an electronic pen mounted inside an electronic pen for inputting desired information to a computer, for example.

コンピュータに所望の情報を入力するための電子ペンの内部には、たとえば特許文献１に示すように、フェライトコアなどのコア体の外周にワイヤが巻回してあるコイル装置が内蔵してある場合がある。このようなコイル装置が内蔵してある電子ペンにおいては、ワイヤの自動巻がし易い構造が求められている。 The electronic pen for inputting desired information to the computer may contain a coil device in which a wire is wound around the outer periphery of a core body such as a ferrite core, as shown in Patent Document 1, for example. is there. An electronic pen incorporating such a coil device is required to have a structure that facilitates automatic winding of a wire.

特に最近では、電子ペンの小径化が求められる場合がある。ところが、特許文献１などに示す従来の電子ペン用コイル装置では、ワイヤの自動巻作業が容易ではなく、しかも、コイル装置と回路基板との配線が複雑になり、ペンの小径化を困難にしている。 Particularly recently, there is a case where the diameter of the electronic pen needs to be reduced. However, in the conventional electronic pen coil device shown in Patent Document 1 and the like, the automatic wire winding operation is not easy, and the wiring between the coil device and the circuit board becomes complicated, making it difficult to reduce the pen diameter. Yes.

このような問題を解決するために、本出願人は、特許文献２に示す電子ペン用コイル装置を開発して先に出願している。しかしながら、先に開発している電子ペン用コイル装置では、コア体の端部に端子を配置しているために、コイル装置のＱ特性が劣化するおそれがある。そのために、コアの端部から端子を引き離す必要があり、コイル装置の長さ寸法に制約がある。 In order to solve such a problem, the present applicant has developed and applied for a coil device for electronic pens as shown in Patent Document 2. However, in the previously developed coil device for electronic pens, since the terminal is arranged at the end of the core body, the Q characteristic of the coil device may be deteriorated. Therefore, it is necessary to pull the terminal away from the end of the core, and the length of the coil device is limited.

特開平５−２７５２８３号公報JP-A-5-275283 特開２０１４−１５０１２３号公報JP 2014-150123 A

本発明は、このような実状に鑑みてなされ、その目的は、ワイヤの自動巻作業が容易で、電子ペンの小型化を図ることが可能であり、しかもＱ特性（Ｑ値）を劣化させない電子ペン用コイル装置を提供することである。 The present invention has been made in view of such a situation, and an object of the present invention is to make it easy to automatically wind a wire, to reduce the size of the electronic pen, and to reduce the Q characteristic (Q value). A coil device for a pen is provided.

上記目的を達成するために、本発明に係る電子ペン用コイル装置は、
電子ペンの内部に配置され、軸方向の反対側にそれぞれ位置する第１コア端と第２コア端とを持つコア体と、
前記コア体の外周に巻回されてコイル部を形成するワイヤと、
前記ワイヤの第１リード部が接続される第１端子と、
前記ワイヤの第２リード部が接続される第２端子と、
を有する電子ペン用コイル装置であって、
前記コア体の外周面で前記第１コア端の近くには、第１端子および第２端子が相互に絶縁されて装着してある。 In order to achieve the above object, a coil device for an electronic pen according to the present invention comprises:
A core body disposed inside the electronic pen and having a first core end and a second core end respectively positioned on opposite sides in the axial direction;
A wire wound around the outer periphery of the core body to form a coil portion;
A first terminal to which the first lead portion of the wire is connected;
A second terminal to which a second lead portion of the wire is connected;
An electronic pen coil device comprising:
A first terminal and a second terminal are insulated from each other and mounted near the end of the first core on the outer peripheral surface of the core body.

本発明に係る電子ペン用コイル装置において、コア体の外周にワイヤを巻き付けてコイル部を形成する方法は、特に限定されないが、たとえば、まず、ワイヤの第１リードを、第１端子に固定する。次に、ワイヤを、自動作業により、コア体の外周にコイル状に巻回してコイル部を形成する。その後に、ワイヤの第２リード部を、第２端子に固定する。 In the coil device for an electronic pen according to the present invention, a method of forming a coil portion by winding a wire around the outer periphery of the core body is not particularly limited. For example, first, the first lead of the wire is fixed to the first terminal. . Next, the coil is formed by winding the wire in a coil shape around the outer periphery of the core body by an automatic operation. Thereafter, the second lead portion of the wire is fixed to the second terminal.

ワイヤを巻回する際には、ワイヤを巻回する軸方向の長さが、コア体のチャック位置と第１端子および第２端子の装着位置とにより仕切られた所定長さにより決定され、ワイヤを自動巻きしやすいと共に、ワイヤの位置決め精度が向上する。そのため、所定のインダクタンス、Ｑ特性および周波数特性などを高精度で実現することが可能になり、電子ペンによる位置検出精度も向上する。 When winding the wire, the axial length of the wire is determined by a predetermined length divided by the chuck position of the core body and the mounting positions of the first terminal and the second terminal. Is easy to automatically wind, and the positioning accuracy of the wire is improved. Therefore, predetermined inductance, Q characteristics, frequency characteristics, and the like can be realized with high accuracy, and position detection accuracy with the electronic pen is also improved.

また、本発明のコイル装置では、第１端子および第２端子が、コア体の外周面に装着されるために、端子がコア体の端部に装着される従来のコイル装置に比較して、Ｑ特性の向上を図ることができる。また、本発明のコイル装置では、第１端子および第２端子をコア体の外周面に装着するシンプルな構造でＱ特性の劣化を防止することができる。その結果、コアの端部から端子を引き離す必要がなくなり、長手方向の寸法の制約がなくなり、装置の小型化が可能になる。 Further, in the coil device of the present invention, since the first terminal and the second terminal are attached to the outer peripheral surface of the core body, compared with the conventional coil device in which the terminal is attached to the end of the core body, The Q characteristic can be improved. In the coil device of the present invention, the Q characteristic can be prevented from being deteriorated with a simple structure in which the first terminal and the second terminal are attached to the outer peripheral surface of the core body. As a result, there is no need to separate the terminal from the end of the core, there is no restriction on the dimension in the longitudinal direction, and the device can be miniaturized.

前記第１端子は、
前記コア体の外周面に装着される第１端子装着片と、
前記第１端子装着片から軸方向に延びて前記コア体の第１コア端から飛び出している第１爪部と、を有しても良く、
前記第２端子は、
前記コア体の外周面に装着される第２端子装着片と、
前記第２端子装着片から軸方向に延びて前記コア体の第１コア端から飛び出している第２爪部と、を有しても良く、
前記第１リード部が前記第１爪部に接続され、
前記第２リード部が前記第２爪部に接続されていても良い。 The first terminal is
A first terminal mounting piece mounted on the outer peripheral surface of the core body;
A first claw portion extending in an axial direction from the first terminal mounting piece and protruding from a first core end of the core body,
The second terminal is
A second terminal mounting piece mounted on the outer peripheral surface of the core body;
A second claw portion extending in an axial direction from the second terminal mounting piece and protruding from a first core end of the core body,
The first lead portion is connected to the first claw portion;
The second lead portion may be connected to the second claw portion.

このように構成することで、ワイヤの第１リード部を第１端子に接続する作業が容易になると共に、ワイヤの第２リード部を第２端子に接続する作業が容易になる。また、このように構成することで、装置の小型化が容易になる。 With this configuration, the operation of connecting the first lead portion of the wire to the first terminal is facilitated, and the operation of connecting the second lead portion of the wire to the second terminal is facilitated. Further, this configuration facilitates downsizing of the device.

前記第１端子は、
前記第１端子装着片から前記第１爪部と反対側に軸方向に伸びる第３爪部をさらに有しても良く、
前記第２端子は、
前記第２端子装着片から前記第２爪部と反対側に軸方向に伸びる第４爪部をさらに有しても良い。 The first terminal is
It may further include a third claw portion extending in the axial direction from the first terminal mounting piece to the opposite side to the first claw portion,
The second terminal is
You may further have the 4th nail | claw part extended in an axial direction on the opposite side to the said 2nd nail | claw part from the said 2nd terminal mounting piece.

前記第３爪部の先端には、第１外方凸部が一体に形成してあり、前記第１外方凸部に前記第１リード部が係合し、前記第１リード部が前記第１爪部に向けて案内され、
前記第４爪部の先端には、第２外方凸部が一体に形成してあり、前記第２外方凸部に前記第２リード部が係合し、前記第２リード部が前記第２爪部に向けて案内されている。 A first outer convex portion is integrally formed at the tip of the third claw portion, the first lead portion is engaged with the first outer convex portion, and the first lead portion is the first Guided to one nail,
A second outer convex portion is integrally formed at the tip of the fourth claw portion, the second lead portion engages with the second outer convex portion, and the second lead portion is It is guided toward the two claws.

このように構成することで、コア体の外周面への自動巻線作業が、さらに容易になると共に、ワイヤのリード部を各端子に接続する作業が容易になる。また、このように構成することで、装置の小型化が容易になる。 With this configuration, the automatic winding work around the outer peripheral surface of the core body is further facilitated, and the work of connecting the lead portions of the wires to the respective terminals is facilitated. Further, this configuration facilitates downsizing of the device.

前記第１端子は、
前記コア体の外周面に装着される第１端子装着片を有し、
前記第２端子は、
前記コア体の外周面に装着される第２端子装着片を有し、
前記第１リード部が前記第１端子装着片に接続されても良く、
前記第２リード部が前記第２端子装着片に接続されても良い。 The first terminal is
Having a first terminal mounting piece mounted on the outer peripheral surface of the core body;
The second terminal is
Having a second terminal mounting piece mounted on the outer peripheral surface of the core body;
The first lead portion may be connected to the first terminal mounting piece,
The second lead portion may be connected to the second terminal mounting piece.

このように構成することでも、ワイヤの第１リード部を第１端子に接続する作業が容易になると共に、ワイヤの第２リード部を第２端子に接続する作業が容易になる。また、このように構成することで、装置の小型化が容易になる。 This configuration also facilitates the operation of connecting the first lead portion of the wire to the first terminal and the operation of connecting the second lead portion of the wire to the second terminal. Further, this configuration facilitates downsizing of the device.

前記第１端子は、
前記第１端子装着片から外側に突出している第１外方凸部をさらに有し、
前記第２端子は、
前記第２端子装着片から外側に突出している第２外方凸部をさらに有してもよい。 The first terminal is
A first outward projection protruding outward from the first terminal mounting piece;
The second terminal is
You may further have the 2nd outward convex part which protrudes outside from the said 2nd terminal mounting piece.

第１外方凸部には、第１リード部を係合させることができ、第２外方凸部には、第２リード部を係合させることができるため、コア体の外周面への自動巻線作業が、容易になると共に、ワイヤのリード部を各端子に接続する作業が容易になる。また、このように構成することで、装置の小型化が容易になる。 The first outer convex portion can be engaged with the first lead portion, and the second outer convex portion can be engaged with the second lead portion. The automatic winding work is facilitated, and the work of connecting the lead portion of the wire to each terminal is facilitated. Further, this configuration facilitates downsizing of the device.

前記第１端子は、
前記第１端子装着片から外側に突出している第１接続凸部をさらに有しても良く、前記第１外方凸部に前記第１リード部が係合し、前記第１リード部が前記第１接続凸部に向けて案内されるようになっていても良く、
前記第２端子は、
前記第２端子装着片から外側に突出している第２接続凸部をさらに有しても良く、前記第２外方凸部に前記第２リード部が係合し、前記第２リード部が前記第２接続凸部に向けて案内されているようになっていても良い。 The first terminal is
The first terminal mounting piece may further include a first connection convex portion protruding outward, the first lead portion is engaged with the first outer convex portion, and the first lead portion is It may be designed to be guided toward the first connection convex part,
The second terminal is
It may further include a second connection convex portion protruding outward from the second terminal mounting piece, the second lead portion is engaged with the second outer convex portion, and the second lead portion is It may be guided toward the second connection convex portion.

前記コア体の外周面には、前記第１端子装着片が嵌め込まれる第１端子装着溝と、前記第２端子装着片が嵌め込まれる第２端子装着溝が形成してあっても良い。このように構成することで、コア体の外周面に対する第１端子および第２端子の位置決めが容易になり、これらの装着が容易になる。 A first terminal mounting groove into which the first terminal mounting piece is fitted and a second terminal mounting groove into which the second terminal mounting piece is fitted may be formed on the outer peripheral surface of the core body. By comprising in this way, positioning of the 1st terminal and the 2nd terminal with respect to the outer peripheral surface of a core body becomes easy, and these mounting | wearing becomes easy.

前記コア体の外周面には、前記第１端子および第２端子を位置決めして装着するためのワイヤガイドが形成してあっても良い。このように構成することで、コア体の外周面に対する第１端子および第２端子の位置決めが容易になり、これらの装着が容易になる。また、ワイヤガイドは、ワイヤをコア体の外周面に巻始める際の位置決めにも成ると共に、巻き終わりのワイヤ端を端子に案内する部分にも成る。このため、自動巻作業が、さらに容易になる。 A wire guide for positioning and mounting the first terminal and the second terminal may be formed on the outer peripheral surface of the core body. By comprising in this way, positioning of the 1st terminal and the 2nd terminal with respect to the outer peripheral surface of a core body becomes easy, and these mounting | wearing becomes easy. The wire guide also serves as a position for starting the winding of the wire around the outer peripheral surface of the core body, and also serves as a portion for guiding the wire end at the end of winding to the terminal. For this reason, the automatic winding operation is further facilitated.

図１は本発明の一実施形態に係る電子ペン用コイル装置の斜視図である。FIG. 1 is a perspective view of a coil device for an electronic pen according to an embodiment of the present invention. 図２は図１に示すII−II線に沿う要部断面斜視図である。2 is a cross-sectional perspective view of an essential part taken along line II-II shown in FIG. 図３は図１に示すペン先と芯体を取り除いたコイル装置の分解斜視図である。FIG. 3 is an exploded perspective view of the coil device from which the pen tip and the core shown in FIG. 1 are removed. 図４は図３に示す第１端子および第２端子の拡大斜視図である。FIG. 4 is an enlarged perspective view of the first terminal and the second terminal shown in FIG. 図５は図４に示す第１端子および第２端子をＸ軸方向から見た拡大正面図である。FIG. 5 is an enlarged front view of the first terminal and the second terminal shown in FIG. 4 as viewed from the X-axis direction. 図６は本発明の他の実施形態に係るコイル装置の分解斜視図である。FIG. 6 is an exploded perspective view of a coil device according to another embodiment of the present invention. 図７は図６に示す第１端子および第２端子の詳細を示す要部拡大斜視図である。FIG. 7 is an enlarged perspective view of a main part showing details of the first terminal and the second terminal shown in FIG. 図８は本発明のさらに他の実施形態に係るコイル装置の要部斜視図である。FIG. 8 is a perspective view of a main part of a coil device according to still another embodiment of the present invention. 図９は本発明のさらに他の実施形態に係るコイル装置の要部分解斜視図である。FIG. 9 is an exploded perspective view of a main part of a coil device according to still another embodiment of the present invention. 図１０は本発明のさらに他の実施形態に係るコイル装置の要部斜視図である。FIG. 10 is a perspective view of a main part of a coil device according to still another embodiment of the present invention. 図１１は本発明のさらに他の実施形態に係るコイル装置の要部斜視図である。FIG. 11 is a perspective view of a main part of a coil device according to still another embodiment of the present invention.

以下、本発明を、図面に示す実施形態に基づき説明する。 Hereinafter, the present invention will be described based on embodiments shown in the drawings.

（第１実施形態）
図１に示す本発明の一実施形態に係る電子ペン用コイル装置２は、電子ペンの内部に装着され、電子ペンの位置情報と共に、その使用状態の変化情報、たとえば電子ペンに加わる圧力または変位などに関する情報を、たとえばタブレットなどの入力用表示画面に非接触式に伝達する装置の一部として使用される。 ( First embodiment)
A coil device 2 for an electronic pen according to an embodiment of the present invention shown in FIG. 1 is mounted inside an electronic pen, and information on change in use state, for example, pressure or displacement applied to the electronic pen, along with position information of the electronic pen. Is used as a part of a device that non-contactly transmits information on an input display screen such as a tablet.

まず、本実施形態において、電子ペンの位置情報と電子ペンの使用状態とを検出する原理を簡単に説明する。 First, in this embodiment, the principle of detecting the position information of the electronic pen and the usage state of the electronic pen will be briefly described.

電子ペンが具備する同調回路（図１に示すコイル部２０を含む）は、タブレット（図示略）などの入力用表示画面から所定の同調周波数、例えば周波数ｆ０の電波が発信されると、該電波を受けて励振され、図１に示すコイル部２０には誘導電圧が誘起される。そして、該電波の発信が停止されると、前記誘導電圧に基づく電流により、コイル部２０から所定の周波数の電波が発信される。このコイル部２０を含む同調回路から発信された電波をタブレット（図示略）で受信することで、タブレット（図示略）上における電子ペン（コイル装置２を含む）の位置を検知できる。 When a tuning circuit (including the coil unit 20 shown in FIG. 1) provided in the electronic pen emits a radio wave having a predetermined tuning frequency, for example, frequency f0, from an input display screen such as a tablet (not shown), the radio wave is transmitted. In response to the excitation, an induced voltage is induced in the coil portion 20 shown in FIG. When the transmission of the radio wave is stopped, a radio wave having a predetermined frequency is transmitted from the coil unit 20 by a current based on the induced voltage. The position of the electronic pen (including the coil device 2) on the tablet (not shown) can be detected by receiving a radio wave transmitted from the tuning circuit including the coil unit 20 with a tablet (not shown).

また、電子ペン用芯体６のペン先６ａは、タブレットの表面に押しつけるように操作される。この操作時には、芯体６がコイル部２０の内部を軸方向に移動する。芯体６の移動に応じて、コイル装置のＱ値が変化する。 The pen tip 6a of the electronic pen core 6 is operated so as to be pressed against the surface of the tablet. During this operation, the core body 6 moves in the axial direction within the coil portion 20. As the core body 6 moves, the Q value of the coil device changes.

コイル装置のＱ値の変化を読み取ることで、電子ペンの操作を検知することができる。電子ペンから検出された信号に応じて、電子ペンにより実現しようとしている線の太さ、指定位置あるいは指定領域の色相や濃度（明度）等を検出することが可能である。 By reading the change in the Q value of the coil device, the operation of the electronic pen can be detected. In accordance with the signal detected from the electronic pen, it is possible to detect the thickness of the line to be realized by the electronic pen, the designated position or the hue or density (brightness) of the designated area, and the like.

このような電子ペンの機能を実現するための本実施形態に係るコイル装置２は、電子ペンの内部に装着可能なコア体４を有する。コア体４は、その長手方向（Ｘ軸）に沿って貫通している軸孔４ａを有し、中空筒体で構成してある。コア体４は、磁性体で構成してあり、たとえばフェライト材、パーマロイなどの軟磁性材、金属圧粉成形の磁性材などで構成される。 The coil device 2 according to this embodiment for realizing the function of the electronic pen has a core body 4 that can be mounted inside the electronic pen. The core body 4 has a shaft hole 4a penetrating along the longitudinal direction (X axis), and is constituted by a hollow cylinder. The core body 4 is made of a magnetic material, and is made of, for example, a soft magnetic material such as a ferrite material or permalloy, or a magnetic material formed by metal dust molding.

図２に示すように、円筒状のコア体４は、図示省略してある電子ペンの内部に沿ってＸ軸方向に細長く、軸方向の反対側にそれぞれ位置する第１端としての基端４ｂと、第２端としての先端４ｃとを有する。基端４ｂの近くに位置するコア体４の外周面には、ワイヤガイド１０が具備してある。 As shown in FIG. 2, the cylindrical core body 4 is elongated in the X-axis direction along the inside of the electronic pen (not shown), and is a base end 4 b as a first end located on the opposite side in the axial direction. And a tip 4c as the second end. A wire guide 10 is provided on the outer peripheral surface of the core body 4 located near the base end 4b.

本実施形態では、ワイヤガイド１０は、コア体４と一体に成形してある。図３に示すように、ワイヤガイド１０は、コア体４の基端４ｂからＸ軸方向に沿って所定距離離れたコア体４の外周面で周方向に沿って断続的に形成してある周方向凸部１０ａ，１０ｂ，１０ｃを有する。周方向凸部１０ｃには、その周方向中央部（Ｚ軸方向上部位置）から基端４ｂに向けてＸ軸方向に延びる軸方向凸部１０ｄが一体的に形成してある。 In the present embodiment, the wire guide 10 is formed integrally with the core body 4. As shown in FIG. 3, the wire guide 10 is formed on the outer peripheral surface of the core body 4 that is distant from the base end 4 b of the core body 4 by a predetermined distance along the X-axis direction. It has direction convex part 10a, 10b, 10c. The circumferential convex portion 10c is integrally formed with an axial convex portion 10d extending in the X-axis direction from the circumferential central portion (Z-axis upper position) toward the base end 4b.

周方向凸部１０ａと周方向凸部１０ｃとの間には、第１ワイヤ通路１２ａが形成してあり、周方向凸部１０ｂと周方向凸部１０ｃとの間には、第２ワイヤ通路１２ｂが形成してある。第１ワイヤ通路１２ａと第２ワイヤ通路１２ｂとは、コア体４の外周面で周方向に沿って１８０度反対側に位置する。第１ワイヤ通路１２ａと第２ワイヤ通路１２ｂとには、それぞれコイル部２０を構成するワイヤ２２の第１リード部２２ａおよび第２リード部２２ｂが案内されるようになっている。 A first wire passage 12a is formed between the circumferential convex portion 10a and the circumferential convex portion 10c, and a second wire passage 12b is formed between the circumferential convex portion 10b and the circumferential convex portion 10c. Is formed. The first wire passage 12a and the second wire passage 12b are located on the outer peripheral surface of the core body 4 on the opposite side by 180 degrees along the circumferential direction. A first lead portion 22a and a second lead portion 22b of the wire 22 constituting the coil portion 20 are guided in the first wire passage 12a and the second wire passage 12b, respectively.

なお、図面において、Ｘ軸、Ｙ軸およびＺ軸は、相互に垂直であり、この実施形態では、Ｘ軸は、コア体４の長手方向であり、Ｙ軸は、第１ワイヤ通路１２ａと第２ワイヤ通路１２ｂとが向き合う方向である。 In the drawings, the X axis, the Y axis, and the Z axis are perpendicular to each other. In this embodiment, the X axis is the longitudinal direction of the core body 4, and the Y axis is the first wire passage 12a and the first axis. This is the direction in which the two-wire passage 12b faces.

図４および図５に示すように、第１端子３０ａおよび第２端子３０ｂは、本実施形態では、完全に分離された２つの金属端子で構成してあり、金属板から打ち抜き成形された端子片を折り曲げ成形することで形成される。第１端子３０ａは、円弧片状の第１端子装着片３１ａを有する。 As shown in FIGS. 4 and 5, in the present embodiment, the first terminal 30a and the second terminal 30b are composed of two metal terminals that are completely separated, and are a terminal piece that is stamped and formed from a metal plate. Is formed by bending. The 1st terminal 30a has the 1st terminal mounting piece 31a of circular arc piece shape.

第１端子装着片３１ａのＺ軸方向の下部には、連結片３６ａを介して第１端子ベース３６ａが一体に形成してある。図１に示すように、第１端子ベース３６ａは、コア体４の基端４ｂから飛び出すように、Ｘ軸方向に延び、そのベース３６ａのＸ軸方向の一端に第１基板接続爪３８ａが折り曲げ成形などにより一体に形成してある。第１基板接続爪３８ａは、たとえば図示省略してある回路基板に接続される。回路基板には、コンデンサやその他の回路素子などが装着してあり、第１基板接続爪３８ａは、回路基板に装着された回路や素子に電気的に接続される。 A first terminal base 36a is formed integrally with a lower portion in the Z-axis direction of the first terminal mounting piece 31a via a connecting piece 36a. As shown in FIG. 1, the first terminal base 36a extends in the X-axis direction so as to protrude from the base end 4b of the core body 4, and the first board connection claw 38a is bent at one end in the X-axis direction of the base 36a. It is integrally formed by molding or the like. The first board connection claw 38a is connected to a circuit board (not shown), for example. A capacitor, other circuit elements, and the like are attached to the circuit board, and the first board connection claws 38a are electrically connected to the circuits and elements attached to the circuit board.

第１端子装着片３１ａは、基端４ｂ近くのコア体４の外周面である端子装着面１４ａ（図３参照）に接着などの手段で装着される。第１端子装着片３１ａのＺ軸方向の上端近くには、第１端子装着片３１ａからＸ軸方向に延びて基端４ｂから飛び出している第１爪部３４ａが一体に形成してある。また、図４に示すように、第１端子装着片３１ａには、第１爪部３４ａと反対側にＸ軸方向に伸びる第３爪部３５ａが形成してあり、その第３爪部３５ａは、図３に示す第１ワイヤ通路１２ａに挿入可能になっている。第３爪部３５ａが第１ワイヤ通路１２ａに挿入されることで、第１端子装着片３１ａが装着されるコア体４の外周面と第１端子３０ａとの位置決めが成される。 The first terminal mounting piece 31a is mounted on the terminal mounting surface 14a (see FIG. 3), which is the outer peripheral surface of the core body 4 near the base end 4b, by means such as adhesion. Near the upper end of the first terminal mounting piece 31a in the Z-axis direction, a first claw portion 34a extending from the first terminal mounting piece 31a in the X-axis direction and protruding from the base end 4b is integrally formed. As shown in FIG. 4, the first terminal mounting piece 31a is formed with a third claw portion 35a extending in the X-axis direction on the side opposite to the first claw portion 34a. 3 can be inserted into the first wire passage 12a shown in FIG. By inserting the third claw portion 35a into the first wire passage 12a, the outer peripheral surface of the core body 4 on which the first terminal mounting piece 31a is mounted and the first terminal 30a are positioned.

第２端子３０ｂは、第１端子３０ａと対にして用いられる。図４および図５に示すように、第２端子３０ｂは、円弧片状の第２端子装着片３１ｂを有する。第２端子装着片３１ｂのＺ軸方向の下部には、連結片３６ｂを介して第２端子ベース３６ｂが一体に形成してある。図１に示すように、第２端子ベース３６ｂは、コア体４の基端４ｂから飛び出すように、Ｘ軸方向に延び、そのベース３６ｂのＸ軸方向の一端に第２基板接続爪３８ｂが折り曲げ成形などにより一体に形成してある。第２基板接続爪３８ｂは、たとえば図示省略してある回路基板に接続される。回路基板には、コンデンサやその他の回路素子などが装着してあり、第２基板接続爪３８ｂは、回路基板に装着された回路や素子に電気的に接続される。 The second terminal 30b is used as a pair with the first terminal 30a. As shown in FIG. 4 and FIG. 5, the second terminal 30 b has an arc-shaped second terminal mounting piece 31 b. A second terminal base 36b is formed integrally with a lower portion in the Z-axis direction of the second terminal mounting piece 31b via a connecting piece 36b. As shown in FIG. 1, the second terminal base 36b extends in the X-axis direction so as to protrude from the base end 4b of the core body 4, and the second board connection claw 38b is bent at one end in the X-axis direction of the base 36b. It is integrally formed by molding or the like. The second board connection claw 38b is connected to a circuit board (not shown), for example. A capacitor, other circuit elements, and the like are attached to the circuit board, and the second board connection claws 38b are electrically connected to the circuits and elements attached to the circuit board.

図３に示すように、第２端子装着片３１ｂは、基端４ｂ近くのコア体４の外周面である端子装着面１４ｂに接着などの手段で装着される。第２端子装着片３１ｂのＺ軸方向の上端近くには、第２端子装着片３１ｂからＸ軸方向に延びて基端４ｂから飛び出している第２爪部３４ｂが一体に形成してある。また、図４に示すように、第２端子装着片３１ｂには、第２爪部３４ｂと反対側にＸ軸方向に伸びる第４爪部３５ｂが形成してあり、その第４爪部３５ｂは、図３に示す第２ワイヤ通路１２ｂに挿入可能になっている。第４爪部３５ｂが第２ワイヤ通路１２ｂに挿入されることで、第２端子装着片３１ｂが装着されるコア体４の外周面と第２端子３０ｂとの位置決めが成される。 As shown in FIG. 3, the second terminal mounting piece 31b is mounted on the terminal mounting surface 14b which is the outer peripheral surface of the core body 4 near the base end 4b by means such as adhesion. Near the upper end of the second terminal mounting piece 31b in the Z-axis direction, a second claw portion 34b extending from the second terminal mounting piece 31b in the X-axis direction and protruding from the base end 4b is integrally formed. As shown in FIG. 4, the second terminal mounting piece 31b is formed with a fourth claw portion 35b extending in the X-axis direction on the side opposite to the second claw portion 34b. 3 can be inserted into the second wire passage 12b shown in FIG. The fourth claw portion 35b is inserted into the second wire passage 12b, whereby the outer peripheral surface of the core body 4 to which the second terminal mounting piece 31b is mounted and the second terminal 30b are positioned.

本実施形態では、上述した端子３０ａ，３０ｂは、コイル部２０のリード２２ａ，２２ｂが接続されて、図示省略してある回路基板にコイル部２０を電気的に接続する機能を有する。 In the present embodiment, the terminals 30a and 30b described above have a function of electrically connecting the coil unit 20 to a circuit board (not shown) to which the leads 22a and 22b of the coil unit 20 are connected.

次に、コア体４およびコイル部２０について詳細に説明する。前述したように、コア体４の外周で基端４ｂの近くには、ワイヤガイド１０が一体に成形してある。ワイヤガイド１０は、コア体４の外周から径方向外方に突出し、周方向に沿って少なくとも一対のワイヤ通路１２ａ，１２ｂを有する。 Next, the core body 4 and the coil part 20 are demonstrated in detail. As described above, the wire guide 10 is formed integrally with the outer periphery of the core body 4 near the base end 4b. The wire guide 10 protrudes radially outward from the outer periphery of the core body 4, and has at least a pair of wire passages 12a and 12b along the circumferential direction.

本実施形態では、ワイヤガイド１０ａの周方向凸部１０ａ，１０ｂ，１０ｃから先端４ｃに至るコア体４の外周面が、ワイヤ２２を巻回してコイル部２０を形成するための部分となる。ただし、先端４ｃ近くのコア体４の外周面は、自動巻線装置のチャック位置であり、ワイヤ２２が巻回されない領域となる。 In the present embodiment, the outer peripheral surface of the core body 4 from the circumferential convex portions 10a, 10b, 10c of the wire guide 10a to the tip 4c is a portion for winding the wire 22 to form the coil portion 20. However, the outer peripheral surface of the core body 4 near the tip 4c is a chuck position of the automatic winding device and is an area where the wire 22 is not wound.

図１に示すコイル部２０を形成するワイヤ２２としては、特に限定されず、たとえばリッツ線、ＵＳＴＣ線、ウレタンワイヤなどが用いられる。特に、リッツ線などの撚り線を用いることで、高周波におけるＱ特性などが向上し、電子ペン用コイル装置として特に好ましい。 The wire 22 forming the coil portion 20 shown in FIG. 1 is not particularly limited, and for example, a litz wire, a USTC wire, a urethane wire, or the like is used. In particular, the use of a stranded wire such as a litz wire improves Q characteristics at high frequencies and is particularly preferable as a coil device for an electronic pen.

図１に示すように、ワイヤ２２の第１リード２２ａは、第１端子３０ａの爪部３４ａに絡められて固定される。また、ワイヤの第２リード２２ｂの端部は、第２端子３０ｂの爪部３４ｂに絡められて固定される。爪部３４ａに絡められてた第１リード部２２ａと、爪部３４ｂに絡められた第２リード部２２ｂとは、巻線の後工程において、それぞれハンダ付け、熱圧着またはレーザ溶接などが施され、それらの部分の電気的接続が確保される。なお、第１リード部２２ａおよび第２リード部２２ｂは、爪部３４ａ，３４ｂに絡げることなく、接続固定しても良い。 As shown in FIG. 1, the first lead 22a of the wire 22 is entangled and fixed to the claw portion 34a of the first terminal 30a. Further, the end portion of the second lead 22b of the wire is entangled and fixed to the claw portion 34b of the second terminal 30b. The first lead portion 22a entangled with the claw portion 34a and the second lead portion 22b entangled with the claw portion 34b are each subjected to soldering, thermocompression bonding, laser welding, or the like in a subsequent process of winding. , The electrical connection of those parts is ensured. The first lead portion 22a and the second lead portion 22b may be connected and fixed without being entangled with the claw portions 34a and 34b.

本実施形態では、巻始めである第１リード２２ａの端部が爪部３４ａに固定されたワイヤ２２は、第１端子装着片３１ａの外表面から第１ワイヤ通路１２ａを通され、ワイヤガイド１０に係止された状態で、コア体４の外周面に巻回される。次に、コア体４の外周面で先端４ｃ近くのチャック位置で、ワイヤ２２の巻回が基端４ｂの方向に巻き戻され、一層目に巻回してあるコイル部２０の上に、二層目のコイル部２０を形成する。一層目のコイル部２０の上に、二層目のコイル部２０をＸ軸方向に所定長さで形成した後に、ワイヤ２２の第２リード部２２ｂは、ワイヤガイド１０の第２ワイヤ通路１２ｂを通り、第２端子装着片３１ｂの外表面から第２端子３０ｂの爪部３４ｂに戻されて、そこに絡げられる。 In the present embodiment, the wire 22 in which the end of the first lead 22a at the beginning of winding is fixed to the claw 34a is passed through the first wire passage 12a from the outer surface of the first terminal mounting piece 31a, and the wire guide 10 The core body 4 is wound around the outer peripheral surface in a state where the core body 4 is locked. Next, at the chuck position near the tip 4c on the outer peripheral surface of the core body 4, the winding of the wire 22 is rewound in the direction of the base end 4b, and on the coil portion 20 wound in the first layer, two layers are wound. The eye coil part 20 is formed. After the second coil portion 20 is formed with a predetermined length in the X-axis direction on the first coil portion 20, the second lead portion 22b of the wire 22 passes through the second wire passage 12b of the wire guide 10. The second terminal mounting piece 31b is returned from the outer surface to the claw portion 34b of the second terminal 30b and entangled there.

本実施形態では、基端４ｂ近くのコア体４の外周面には、第１端子３０ａおよび第２端子３０ｂを位置決めして装着するためのワイヤガイド１０が形成してある。このように構成することで、コア体４の外周面に対する第１端子３０ａおよび第２端子３０ｂの位置決めが容易になり、これらの装着が容易になる。また、ワイヤガイド１０は、ワイヤ２２をコア体４の外周面に巻始める際の位置決めにも成ると共に、巻き終わりのワイヤ端（第２リード部２２ｂ）を端子３０ｂに案内する部分にも成る。このため、自動巻作業が、さらに容易になる。 In the present embodiment, the wire guide 10 for positioning and mounting the first terminal 30a and the second terminal 30b is formed on the outer peripheral surface of the core body 4 near the base end 4b. By comprising in this way, positioning of the 1st terminal 30a and the 2nd terminal 30b with respect to the outer peripheral surface of the core body 4 becomes easy, and mounting | wearing of these becomes easy. The wire guide 10 also serves as a position for starting the winding of the wire 22 around the outer peripheral surface of the core body 4, and also serves as a portion for guiding the wire end (second lead portion 22b) at the end of winding to the terminal 30b. For this reason, the automatic winding operation is further facilitated.

しかも本実施形態では、ワイヤ２２を巻回する際には、ワイヤ２２を巻回する軸方向の長さが、コア体４のチャック位置とワイヤガイド１０とにより仕切られた所定長さにより決定され、ワイヤを自動巻きしやすい。また、ワイヤの位置決め精度が向上し、所定のインダクタンス、Ｑ特性および周波数特性などを高精度で実現することが可能になり、電子ペンによる位置検出精度も向上する。 Moreover, in the present embodiment, when the wire 22 is wound, the axial length in which the wire 22 is wound is determined by a predetermined length partitioned by the chuck position of the core body 4 and the wire guide 10. Easy to wind the wire automatically. In addition, the positioning accuracy of the wire is improved, and predetermined inductance, Q characteristics, frequency characteristics, and the like can be realized with high accuracy, and the position detection accuracy by the electronic pen is also improved.

また、本実施形態では、一層目のコイル部２０の上に、二層目のコイル部２０がＸ軸方向に所定長さで形成してあることから、コイル部２０のインダクタンスの調整が容易であり、しかも、コイル部２０の外側にリード部のための配線が露出することはなく、配線が他の部材に引っかかるおそれも少ない。 In the present embodiment, since the second layer coil portion 20 is formed on the first layer coil portion 20 with a predetermined length in the X-axis direction, the adjustment of the inductance of the coil portion 20 is easy. In addition, the wiring for the lead portion is not exposed to the outside of the coil portion 20, and there is little possibility that the wiring is caught by other members.

さらに本実施形態のコイル装置では、第１端子３０ａおよび第２端子３０ｂが、コア体４の外周面に装着されるために、端子がコア体の端部に装着される従来のコイル装置に比較して、Ｑ特性の向上を図ることができる。また、本実施形態のコイル装置２では、第１端子３０ａおよび第２端子３０ｂをコア体４の外周面に装着するシンプルな構造でＱ特性の劣化を防止することができる。その結果、コア４の端部から端子を引き離す必要がなくなり、長手方向の寸法の制約がなくなり、装置２の小型化が可能になる。 Furthermore, in the coil device of the present embodiment, since the first terminal 30a and the second terminal 30b are attached to the outer peripheral surface of the core body 4, the terminal device is compared with the conventional coil device attached to the end of the core body. Thus, the Q characteristic can be improved. In the coil device 2 of the present embodiment, the Q characteristic can be prevented from being deteriorated with a simple structure in which the first terminal 30 a and the second terminal 30 b are mounted on the outer peripheral surface of the core body 4. As a result, there is no need to separate the terminal from the end of the core 4, and there is no restriction on the dimension in the longitudinal direction, and the device 2 can be downsized.

また、本実施形態では、第１端子３０ａは、コア体４の外周面に装着される第１端子装着片３１ａと、第１端子装着片３１ａから軸方向に延びてコア体４の基端４ｂから飛び出している第１爪部３４ａと、を有している。また同様に、第２端子３０ｂは、コア体４の外周面に装着される第２端子装着片３１ｂと、第２端子装着片３１ｂから軸方向に延びて前記コア体の基端４ｂから飛び出している第２爪部３４ｂと、を有している。第１リード部２２ａが第１爪部３４ａに接続され、第２リード部２２ｂが第２爪部３４ｂに接続される。 In the present embodiment, the first terminal 30 a includes a first terminal mounting piece 31 a mounted on the outer peripheral surface of the core body 4, and a base end 4 b of the core body 4 extending in the axial direction from the first terminal mounting piece 31 a. And a first claw portion 34a that protrudes from the head. Similarly, the second terminal 30b includes a second terminal mounting piece 31b mounted on the outer peripheral surface of the core body 4, and extends from the second terminal mounting piece 31b in the axial direction and protrudes from the base end 4b of the core body. And a second claw portion 34b. The first lead portion 22a is connected to the first claw portion 34a, and the second lead portion 22b is connected to the second claw portion 34b.

このように構成することで、ワイヤ２２の第１リード部２２ａを第１端子３０ａに接続する作業が容易になると共に、ワイヤ２２の第２リード部２２ｂを第２端子３０ｂに接続する作業が容易になる。また、このように構成することで、コイル装置２の小型化が容易になる。 With this configuration, the operation of connecting the first lead portion 22a of the wire 22 to the first terminal 30a is facilitated, and the operation of connecting the second lead portion 22b of the wire 22 to the second terminal 30b is easy. become. Further, with this configuration, the coil device 2 can be easily downsized.

本実施形態では、巻線の終了と同時に、ワイヤ２２の両端を第１端子３０ａと第２端子３０ｂに接続固定することができる。これらの端子３０ａ，３０ｂは、図示省略してある回路基板の回路パターンに直接に接続してあることから、回路基板との特別な配線が不要となり、コイル部２０と回路基板との配線がシンプルになり、この点でも、ペンの小径化を図ることができる。 In this embodiment, both ends of the wire 22 can be connected and fixed to the first terminal 30a and the second terminal 30b simultaneously with the end of the winding. Since these terminals 30a and 30b are directly connected to a circuit pattern of a circuit board (not shown), no special wiring with the circuit board is required, and wiring between the coil unit 20 and the circuit board is simple. In this respect, the pen can be reduced in diameter.

（第２実施形態）
図６および図７に示すように、本実施形態の電子ペン用コイル装置２αでは、コア体４αは、単純な円筒形状であり、前述した第１実施形態のコア体４とは異なり、コア体４αの外周面にワイヤガイド１０を有さない。しかも、第１端子３０ａ１は、第１端子装着片３１ａから第１爪部３４ａと反対側にＸ軸方向に伸びる第３爪部３５ａ１を有する。第３爪部３５ａ１の先端には、第１外方凸部３５ａ２が折り曲げ成形により一体に形成してあり、第１外方凸部３５ａ２に第１リード部２２ａが係合可能になっている。第１爪部３４ａに絡められた第１リード部２２ａは、第１端子装着片３１ａの外表面から第３爪部３５ａ１の先端に案内され、第１外方凸部３５ａ２に係止し、そこから、ワイヤ２２は、コア体４αの外周面に巻回される。 ( Second Embodiment)
As shown in FIGS. 6 and 7, in the electronic pen coil device 2α of the present embodiment, the core body 4α has a simple cylindrical shape, and is different from the core body 4 of the first embodiment described above. The wire guide 10 is not provided on the outer peripheral surface of 4α. In addition, the first terminal 30a1 has a third claw portion 35a1 extending in the X-axis direction from the first terminal mounting piece 31a on the opposite side to the first claw portion 34a. A first outer convex portion 35a2 is integrally formed by bending at the tip of the third claw portion 35a1, and the first lead portion 22a can be engaged with the first outer convex portion 35a2. The first lead portion 22a entangled with the first claw portion 34a is guided from the outer surface of the first terminal mounting piece 31a to the tip of the third claw portion 35a1, and is locked to the first outer convex portion 35a2. Therefore, the wire 22 is wound around the outer peripheral surface of the core body 4α.

第２端子３０ｂ１は、第２端子装着片３１ｂから第２爪部３４ｂと反対側にＸ軸方向に伸びる第４爪部３５ｂ１を有する。第４爪部３５ｂ１の先端には、第２外方凸部３５ｂ２が折り曲げ成形により一体に形成してあり、第２外方凸部３５ｂ２に第２リード部２２ｂが係合可能になっている。コア体４αの外周面に巻回された二層目のコイル部２２から延びる第２リード部２２ｂは、第２外方凸部３５ｂ２に係止し、そこから、第４爪部３５ｂ１および第２端子装着片３１ｂの外表面を通り、第２爪部３４ｂに案内され、そこで、第２爪部３４ｂに絡められる。 The second terminal 30b1 has a fourth claw portion 35b1 extending in the X-axis direction on the opposite side of the second claw portion 34b from the second terminal mounting piece 31b. A second outer convex portion 35b2 is integrally formed by bending at the tip of the fourth claw portion 35b1, and the second lead portion 22b can be engaged with the second outer convex portion 35b2. The second lead portion 22b extending from the second-layer coil portion 22 wound around the outer peripheral surface of the core body 4α is engaged with the second outer convex portion 35b2, from which the fourth claw portion 35b1 and the second claw portion 35b1 It passes through the outer surface of the terminal mounting piece 31b and is guided to the second claw portion 34b, where it is entangled with the second claw portion 34b.

このように構成することで、コア体４αの外周面への自動巻線作業が、さらに容易になると共に、ワイヤ２２の各リード部２２ａ，２２ｂを各端子３０ａ１，３０ｂ１に接続する作業が容易になる。また、このように構成することで、コア体４αの構造がシンプルになり、コイル装置２αの小型化が容易になる。本実施形態におけるその他の構成および作用効果は、図１〜図５に示す実施形態と同様であり、共通する部分のその他の説明は省略する。 With this configuration, the automatic winding work around the outer peripheral surface of the core body 4α is further facilitated, and the work of connecting the lead portions 22a and 22b of the wire 22 to the terminals 30a1 and 30b1 is facilitated. Become. Also, with this configuration, the structure of the core body 4α is simplified, and the coil device 2α can be easily downsized. Other configurations and operational effects in the present embodiment are the same as those in the embodiment shown in FIGS. 1 to 5, and other descriptions of common parts are omitted.

（第３実施形態）
本実施形態の電子ペン用コイル装置２βでは、図８および図９に示すように、コア体４βの外周面に、第１端子装着溝１４ａ１と、第２端子装着溝１４ｂ１が形成してある。第１端子装着溝１４ａ１には、第１端子装着片３１ａおよび第３爪部３５ａ１が嵌め込まれ、第２端子装着溝１４ｂ１には、第２端子装着片３１ｂおよび第４爪部３５ｂ１が嵌め込まれる。これらの溝深さは、特に限定されず、第１端子３０ａ２および第２端子３０ｂ２を構成する金属板の板厚より深くても良いが、好ましくは同等以下である。このように構成することで、インダクタンスを低下させることなく、コア体４βの外周面に対する第１端子３０ａ２および第２端子３０ｂ２の位置決めが容易になり、これらの装着が容易になる。また、コア体の外側への端子の突出量を最小限にすることができ、コイル装置２βのコンパクト化に寄与する。 ( Third embodiment)
In the electronic pen coil device 2β of the present embodiment, as shown in FIGS. 8 and 9, the first terminal mounting groove 14a1 and the second terminal mounting groove 14b1 are formed on the outer peripheral surface of the core body 4β. The first terminal mounting groove 31a1 is fitted with the first terminal mounting piece 31a and the third claw portion 35a1, and the second terminal mounting groove 14b1 is fitted with the second terminal mounting piece 31b and the fourth claw portion 35b1. These groove depths are not particularly limited, and may be deeper than the thicknesses of the metal plates constituting the first terminal 30a2 and the second terminal 30b2, but are preferably equal or less. With this configuration, the first terminal 30a2 and the second terminal 30b2 can be easily positioned with respect to the outer peripheral surface of the core body 4β without reducing the inductance, and these can be easily mounted. Moreover, the protrusion amount of the terminal to the outside of the core body can be minimized, which contributes to the compactness of the coil device 2β.

また、本実施形態では、第３爪部３５ａ１の先端には、一対の外方凸部３５ａ２が形成してあり、これらの外方凸部３５ａ２の間に、ワイヤ溝３５ａ３が形成してある。また。第４爪部の先端にも、一対の外方凸部３５ｂ２が形成してあり、これらの外方凸部３５ｂ２の間に、ワイヤ溝３５ｂ３が形成してある。それぞれの外方凸部３５ａ２，３５ｂ２の間に、ワイヤ溝３５ａ３，３５ｂ３をそれぞれ形成してあることから、リード部２２ａ，２２ｂを、各ワイヤ溝３５ａ３，３５ｂ３に通して係止させることが容易になる。そのため、ワイヤ２２の自動巻作業がさらに容易になる。本実施形態では、その他の構成および作用効果は、第１〜第２実施形態と同様であり、共通する部分のその他の説明は省略する。 In the present embodiment, a pair of outward projections 35a2 is formed at the tip of the third claw portion 35a1, and a wire groove 35a3 is formed between these outward projections 35a2. Also. A pair of outward projections 35b2 is also formed at the tip of the fourth claw portion, and a wire groove 35b3 is formed between these outward projections 35b2. Since the wire grooves 35a3 and 35b3 are formed between the outer convex portions 35a2 and 35b2, respectively, the lead portions 22a and 22b can be easily locked through the wire grooves 35a3 and 35b3. Become. Therefore, the automatic winding operation of the wire 22 is further facilitated. In the present embodiment, other configurations and operational effects are the same as those in the first and second embodiments, and other descriptions of common parts are omitted.

（第４実施形態）
本実施形態の電子ペン用コイル装置２γでは、図１０および図１１に示すように、第１端子３０ａ３および第２端子３０ｂ３に特徴を有する。図１０は、巻線が終了するまでの状態を示し、図１１は、巻線が終了した後の完成品に近い状態を示す。 ( Fourth embodiment)
The electronic pen coil device 2γ according to the present embodiment is characterized by the first terminal 30a3 and the second terminal 30b3, as shown in FIGS. FIG. 10 shows a state until the winding is finished, and FIG. 11 shows a state close to a finished product after the winding is finished.

図１０に示すように、巻線が終了する前までは、第１端子は、基端４ｂ近くのコア体４の外周面に装着される第１端子装着片３１ａ３を有する。第１端子装着片３１ａ３には、前述した実施形態と同様に、第１爪部３４ａ３がＸ軸方向に沿って基端４ｂから飛び出すように、第１端子装着片３１ａ３と一体に成形してある。第１端子装着片３１ａ３には、第１リード部２２ａが絡げてあり、第１絡げ部２２ｃが形成してある。 As shown in FIG. 10, the first terminal has a first terminal mounting piece 31a3 that is mounted on the outer peripheral surface of the core body 4 near the base end 4b until the winding is completed. Similarly to the above-described embodiment, the first terminal mounting piece 31a3 is formed integrally with the first terminal mounting piece 31a3 so that the first claw portion 34a3 protrudes from the base end 4b along the X-axis direction. . The first lead mounting portion 31a3 is bound with the first lead portion 22a, and the first binding portion 22c is formed.

第１端子装着片３１ａ３の第１爪部３４ａ３とＸ軸方向の反対側には、第３爪部の全体を外方に折り曲げて、第１外方凸部３５ａ２が形成してある。また、第１端子装着片３１ａ３の中央部には、第１貫通孔３９ａが形成してあり、第１貫通孔３９ａを通して、コア体４の外周面が露出するようになっている。第１貫通孔３９ａのＸ軸方向の端部には、一対の第１接続凸部３３ａ，３３ａが折り曲げ成形により第１端子装着片３１ａ３と一体に形成してある。 On the opposite side of the first terminal mounting piece 31a3 from the first claw portion 34a3 in the X-axis direction, the entire third claw portion is bent outward to form a first outer convex portion 35a2. Further, a first through hole 39a is formed at the center of the first terminal mounting piece 31a3, and the outer peripheral surface of the core body 4 is exposed through the first through hole 39a. A pair of first connection convex portions 33a and 33a are formed integrally with the first terminal mounting piece 31a3 by bending at the end of the first through hole 39a in the X-axis direction.

これらの一対の第１接続凸部３３ａ，３３ａの間には、第１中間ワイヤ溝３７ａが形成してあり、そこを第１リード部２２ａが通過するようになっている。第１爪部３４ａ３に絡げられた第１リード部２２ａは、第１中間ワイヤ溝３７ａを通り、第１外方凸部３５ａ２に係合して、コア体４の外周面に自動巻線作業が成される。 A first intermediate wire groove 37a is formed between the pair of first connection convex portions 33a and 33a, through which the first lead portion 22a passes. The first lead portion 22a entangled with the first claw portion 34a3 passes through the first intermediate wire groove 37a, engages with the first outer convex portion 35a2, and is automatically wound around the outer peripheral surface of the core body 4. Is made.

図１０に示すように、巻線が終了する前までは、第２端子は、基端４ｂ近くのコア体４の外周面に装着される第２端子装着片３１ｂ３を有する。第２端子装着片３１ｂ３には、前述した実施形態と同様に、第２爪部３４ｂ３がＸ軸方向に沿って基端４ｂから飛び出すように、第２端子装着片３１ｂ３と一体に成形してある。第２端子装着片３１ｂ３には、第２リード部２２ｂが絡げてあり、第２絡げ部２２ｄが形成してある。 As shown in FIG. 10, until the end of winding, the second terminal has a second terminal mounting piece 31b3 mounted on the outer peripheral surface of the core body 4 near the base end 4b. Similarly to the above-described embodiment, the second terminal mounting piece 31b3 is formed integrally with the second terminal mounting piece 31b3 so that the second claw portion 34b3 protrudes from the base end 4b along the X-axis direction. . A second lead portion 22b is bound to the second terminal mounting piece 31b3, and a second binding portion 22d is formed.

第２端子装着片３１ｂ３の第２爪部３４ｂ３とＸ軸方向の反対側には、第４爪部の全体を外方に折り曲げて、第２外方凸部３５ｂ２が形成してある。また、第２端子装着片３１ｂ３の中央部には、第２貫通孔３９ｂが形成してあり、第２貫通孔３９ｂを通して、コア体４の外周面が露出するようになっている。第２貫通孔３９ｂのＸ軸方向の端部には、一対の第２接続凸部３３ｂ，３３ｂが折り曲げ成形により第２端子装着片３１ｂ３と一体に形成してある。 On the opposite side to the second claw portion 34b3 of the second terminal mounting piece 31b3 in the X-axis direction, the entire fourth claw portion is bent outward to form a second outward convex portion 35b2. Further, a second through hole 39b is formed at the center of the second terminal mounting piece 31b3, and the outer peripheral surface of the core body 4 is exposed through the second through hole 39b. A pair of second connection projections 33b and 33b are formed integrally with the second terminal mounting piece 31b3 by bending at the end of the second through hole 39b in the X-axis direction.

これらの一対の第２接続凸部３３ｂ，３３ｂの間には、第２中間ワイヤ溝３７ｂが形成してあり、そこを第２リード部２２ｂが通過するようになっている。コア体４の外周面に自動巻線されたワイヤ２２の第２リード部２２ｂは、第２外方凸部３５ｂ２に係合して、第２中間ワイヤ溝３７ｂを通り、第２爪部に向けて案内され、そこで、第２リード部２２ｂが絡げられ、第２絡げ部２２ｄが形成される。図１０に示すように、巻線作業が終了するまでは、第１端子３０ａ３は、第１絡げ部２２ｃが形成してある第１爪部３４ａ３を有し、第２端子３０ｂ３は、第２絡げ部２２ｄが形成してある第２爪部３４ｂ３を有している。 A second intermediate wire groove 37b is formed between the pair of second connection convex portions 33b and 33b, and the second lead portion 22b passes therethrough. The second lead portion 22b of the wire 22 that is automatically wound around the outer peripheral surface of the core body 4 engages with the second outer convex portion 35b2 and passes through the second intermediate wire groove 37b toward the second claw portion. Then, the second lead portion 22b is entangled and the second entangled portion 22d is formed. As shown in FIG. 10, until the winding work is completed, the first terminal 30a3 has a first claw portion 34a3 formed with a first binding portion 22c, and the second terminal 30b3 has a second terminal 30b3. It has the 2nd nail | claw part 34b3 in which the binding part 22d is formed.

図１１に示すように、巻線作業が終了した後には、第１絡げ部２２ｃが形成してある第１爪部３４ａ３は、第１爪部残り３４ａ４を残して切断して除去され、第２絡げ部２２ｄが形成してある第２爪部３４ｂ３は、第２爪部残り３４ｂ４を残して切断して除去される。なお、巻線作業の終了後には、第１爪部残り３４ａ４および第２爪部残り３４ｂ４も完全に除去し、コア体４の外周面に装着してある第１端子装着片３１ａ３および第２端子装着片３１ｂ３のみを残すようにしても良い。 As shown in FIG. 11, after the winding work is finished, the first claw portion 34a3 formed with the first binding portion 22c is cut and removed leaving the first claw portion remaining 34a4, The second claw portion 34b3 formed with the two binding portions 22d is cut and removed leaving the second claw portion remaining 34b4. After the end of the winding operation, the first claw portion remaining 34a4 and the second claw portion remaining 34b4 are also completely removed, and the first terminal mounting piece 31a3 and the second terminal mounted on the outer peripheral surface of the core body 4 are used. Only the mounting piece 31b3 may be left.

いずれにしても、第１端子装着片３１ａ３および第２端子装着片３１ｂ３には、それぞれ、コア体４の基端４ｂよりもＸ軸方向に沿って外側に突出する部分を残さないようにすることが好ましい。第１リード部２２ａおよび第２リード部２２ｂのそれぞれの切断端である第１切断部２２ｅおよび第２切断部２２ｆは、それぞれ第１接続凸部３３ａおよび第２接続凸部３３ｂの近くに位置させても良い。その位置で、第１リード部２２ａは、第１接続凸部３３ａを介して、または直接に第１端子装着片３１ａ３に接続される。また、第２リード部２２ｂは、第２接続凸部３３ｂを介して、または直接に第２端子装着片３１ｂ３に接続される。接続のための方法は、特に限定されず、前述した実施形態と同様な方法が用いられる。 In any case, each of the first terminal mounting piece 31a3 and the second terminal mounting piece 31b3 should not leave a portion protruding outward along the X-axis direction from the base end 4b of the core body 4. Is preferred. The first cut portion 22e and the second cut portion 22f, which are the cut ends of the first lead portion 22a and the second lead portion 22b, are positioned close to the first connection convex portion 33a and the second connection convex portion 33b, respectively. May be. At that position, the first lead portion 22a is connected to the first terminal mounting piece 31a3 via the first connection convex portion 33a or directly. The second lead portion 22b is connected to the second terminal mounting piece 31b3 via the second connection convex portion 33b or directly. The method for connection is not particularly limited, and the same method as in the above-described embodiment is used.

このように構成することでも、自動巻作業が容易になると共に、ワイヤ２２の第１リード部２２ａを第１端子３０ａ３に接続する作業が容易になる。また、ワイヤ２２の第２リード部２２ｂを第２端子３０ｂ３に接続する作業が容易になる。また、このように構成することで、図１１に示すように、各端子装着片３１ａ３および３１ｂ３からコア体４の基端４ｂより突出する部分がなくなり、より装置の小型化を増進することができる。 This configuration also facilitates the automatic winding operation and facilitates the operation of connecting the first lead portion 22a of the wire 22 to the first terminal 30a3. Further, the work of connecting the second lead portion 22b of the wire 22 to the second terminal 30b3 is facilitated. Moreover, by comprising in this way, as shown in FIG. 11, the part which protrudes from the base end 4b of the core body 4 from each terminal mounting piece 31a3 and 31b3 is lose | eliminated, and size reduction of an apparatus can be improved more. .

本実施形態では、その他の構成および作用効果は、第１〜第３実施形態と同様であり、共通する部分のその他の説明は省略する。 In the present embodiment, other configurations and operational effects are the same as those in the first to third embodiments, and other descriptions of common parts are omitted.

なお、本発明は、上述した実施形態に限定されるものではなく、本発明の範囲内で種々に改変することができる。 The present invention is not limited to the above-described embodiment, and can be variously modified within the scope of the present invention.

たとえばコア体４、４α，４β，４γは、円筒以外の多角筒形状、楕円筒形状、あるいはその他の筒形状、あるいは軸孔が無くても良い。また、コア体４は、Ｘ軸方向に沿って断面形状が変化するような形状であっても良い。 For example, the core bodies 4, 4α, 4β, and 4γ may have no polygonal cylinder shape other than a cylinder, an elliptical cylinder shape, other cylindrical shapes, or an axial hole. The core body 4 may have a shape whose cross-sectional shape changes along the X-axis direction.

また本実施形態では、芯体６の材質は、特に限定されないが、たとえば合成樹脂などの非磁性材料であることが好ましい。芯体６を非磁性材で構成することにより、Ｑ特性の向上を図ることができる。 In the present embodiment, the material of the core body 6 is not particularly limited, but is preferably a nonmagnetic material such as a synthetic resin. By configuring the core body 6 with a nonmagnetic material, the Q characteristic can be improved.

さらに上述した実施形態では、第１リード部２２ａが巻始めであり、第２リード部２２ｂが巻き終わりであったが、逆であっても良い。たとえば第２リード部２２ｂが巻始めであり、第１リード部２２ａが巻き終わりでも良い。また、上述した各実施形態の各構成要素は、それぞれ組み合わせても良い。たとえば第１実施形態に示すワイヤガイド１０と、第３実施形態に示す端子装着溝１４ａ１，１４ｂ１とは、組み合わせてコア体に形成しても良い。 Further, in the above-described embodiment, the first lead portion 22a is the start of winding and the second lead portion 22b is the end of winding, but the reverse may be possible. For example, the second lead portion 22b may be the start of winding and the first lead portion 22a may be the end of winding. Moreover, you may combine each component of each embodiment mentioned above, respectively. For example, the wire guide 10 shown in the first embodiment and the terminal mounting grooves 14a1 and 14b1 shown in the third embodiment may be combined and formed in the core body.

２，２α，２β… 電子ペン用コイル装置
４，４α，４β… コア体
４ａ… 軸孔
４ｂ… 基端（第１コア端）
４ｃ… 先端（第２コア端）
６… 芯体
６ａ… ペン先
１０… ワイヤガイド
１０ａ，１０ｂ，１０ｃ… 周方向凸部
１０ｄ… 軸方向凸部
１２ａ，１２ｂ… ワイヤ通路
１４ａ，１４ｂ… 端子装着面
１４ａ１，１４ｂ１… 端子装着溝
２０… コイル部
２２… ワイヤ
２２ａ… 第１リード
２２ｂ… 第２リード
２２ｃ… 第１絡げ部
２２ｄ… 第２絡げ部
２２ｅ… 第１切断部
２２ｆ… 第２切断部
３０ａ，３０ａ１，３０ａ２… 第１端子
３０ｂ，３０ｂ１，３０ｂ２… 第２端子
３１ａ，３１ａ３… 第１端子装着片
３１ｂ，３１ｂ３… 第２端子装着片
３２ａ… 第１連結片
３２ｂ… 第２連結片
３３ａ… 第１接続凸部
３３ｂ… 第２接続凸部
３４ａ，３４ａ３… 第１爪部
３４ｂ，３４ｂ３… 第２爪部
３４ａ４… 第１爪部残り
３４ｂ４… 第２爪部残り
３５ａ，３５ａ１… 第３爪部
３５ａ２… 第１外方凸部
３５ａ３… ワイヤ溝
３５ｂ，３５ｂ１… 第４爪部
３５ｂ２… 第２外方凸部
３５ｂ３… ワイヤ溝
３６ａ… 第１端子ベース
３６ｂ… 第２端子ベース
３７ａ… 第１中間ワイヤ溝
３７ｂ… 第２中間ワイヤ溝
３８ａ… 第１基板接続爪
３８ｂ… 第２基板接続爪
３９ａ… 第１貫通孔
３９ｂ… 第２貫通孔 2, 2α, 2β ... Coil device for electronic pen 4, 4α, 4β ... Core body 4a ... Shaft hole 4b ... Base end (first core end)
4c ... Tip (second core end)
6 ... Core 6a ... Pen tip 10 ... Wire guide 10a, 10b, 10c ... Circumferential convex part 10d ... Axial convex part 12a, 12b ... Wire passage 14a, 14b ... Terminal mounting surface 14a1, 14b1 ... Terminal mounting groove 20 ... Coil portion 22 ... wire 22a ... first lead 22b ... second lead 22c ... first binding portion 22d ... second binding portion 22e ... first cutting portion 22f ... second cutting portions 30a, 30a1, 30a2 ... first terminal 30b, 30b1, 30b2 ... 2nd terminal 31a, 31a3 ... 1st terminal mounting piece 31b, 31b3 ... 2nd terminal mounting piece 32a ... 1st connection piece 32b ... 2nd connection piece 33a ... 1st connection convex part 33b ... 2nd Connection protrusions 34a, 34a3 ... 1st claw part 34b, 34b3 ... 2nd claw part 34a4 ... 1st claw part remaining 34b4 ... 2nd claw part remaining 35a, 35a1 ... 3rd claw part 5a2 ... 1st outward convex part 35a3 ... Wire groove 35b, 35b1 ... 4th nail | claw part 35b2 ... 2nd outward convex part 35b3 ... Wire groove 36a ... 1st terminal base 36b ... 2nd terminal base 37a ... 1st intermediate | middle wire Groove 37b ... Second intermediate wire groove 38a ... First board connecting claw 38b ... Second board connecting claw 39a ... First through hole 39b ... Second through hole

Claims

A core body disposed inside the electronic pen and having a first core end and a second core end respectively positioned on opposite sides in the axial direction;
A wire wound around the outer periphery of the core body to form a coil portion;
A first terminal to which the first lead portion of the wire is connected;
A second terminal to which a second lead portion of the wire is connected;
An electronic pen coil device comprising:
A coil device for an electronic pen, in which a first terminal and a second terminal are insulated and attached to each other near the first core end on the outer peripheral surface of the core body.

The first terminal is
A first terminal mounting piece mounted on the outer peripheral surface of the core body;
A first claw portion extending in an axial direction from the first terminal mounting piece and protruding from a first core end of the core body,
The second terminal is
A second terminal mounting piece mounted on the outer peripheral surface of the core body;
A second claw portion extending in the axial direction from the second terminal mounting piece and protruding from the first core end of the core body,
The first lead portion is connected to the first claw portion;
The electronic pen coil device according to claim 1, wherein the second lead portion is connected to the second claw portion.

The first terminal is
A third claw portion extending in the axial direction from the first terminal mounting piece to the opposite side of the first claw portion;
The second terminal is
The coil device for an electronic pen according to claim 2, further comprising a fourth claw portion extending in the axial direction from the second terminal mounting piece to the opposite side to the second claw portion.

A first outer convex portion is integrally formed at the tip of the third claw portion, the first lead portion is engaged with the first outer convex portion, and the first lead portion is the first Guided to one nail,
A second outer convex portion is integrally formed at the tip of the fourth claw portion, the second lead portion engages with the second outer convex portion, and the second lead portion is The coil device for electronic pens of Claim 3 currently guided toward the 2 nail | claw part.

The first terminal is
Having a first terminal mounting piece mounted on the outer peripheral surface of the core body;
The second terminal is
Having a second terminal mounting piece mounted on the outer peripheral surface of the core body;
The first lead portion is connected to the first terminal mounting piece;
The coil device for an electronic pen according to claim 1, wherein the second lead portion is connected to the second terminal mounting piece.

The first terminal is
A first outward projection protruding outward from the first terminal mounting piece;
The second terminal is
The coil device for an electronic pen according to claim 5, further comprising a second outward projection protruding outward from the second terminal mounting piece.

The first terminal is
And a first connection protrusion protruding outward from the first terminal mounting piece, wherein the first lead is engaged with the first outer protrusion, and the first lead is connected to the first connection. Guided to the convex part,
The second terminal is
And a second connection projection protruding outward from the second terminal mounting piece, wherein the second lead portion is engaged with the second outer projection, and the second lead portion is connected to the second connection portion. The coil device for electronic pens of Claim 6 currently guided toward the convex part.

8. The outer peripheral surface of the core body includes a first terminal mounting groove into which the first terminal mounting piece is fitted and a second terminal mounting groove into which the second terminal mounting piece is fitted. The coil device for electronic pens in any one.

The coil device for an electronic pen according to any one of claims 1 to 8, wherein a wire guide for positioning and mounting the first terminal and the second terminal is formed on an outer peripheral surface of the core body.