JP2004014307A - Control key apparatus - Google Patents

Control key apparatus Download PDF

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Publication number
JP2004014307A
JP2004014307A JP2002166393A JP2002166393A JP2004014307A JP 2004014307 A JP2004014307 A JP 2004014307A JP 2002166393 A JP2002166393 A JP 2002166393A JP 2002166393 A JP2002166393 A JP 2002166393A JP 2004014307 A JP2004014307 A JP 2004014307A
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JP
Japan
Prior art keywords
contact
control key
cup
fulcrum shaft
printed circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002166393A
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Japanese (ja)
Inventor
Yasuo Takasu
高須 安夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOKYO SHOKO KK
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TOKYO SHOKO KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TOKYO SHOKO KK filed Critical TOKYO SHOKO KK
Priority to JP2002166393A priority Critical patent/JP2004014307A/en
Publication of JP2004014307A publication Critical patent/JP2004014307A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To obtain a control key apparatus that exhibits a sensitive responsiveness, prevents the direct contact between a hard support shaft section and a printed circuit board, the printed wiring board is hardly broken by external force. <P>SOLUTION: In the control key apparatus, contact rubber 30 is positioned on the surface of the printed circuit board 20 being incorporated in a casing 10, and a plurality of cup-like contact sections 31 on the contact rubber 30 are operated by contact press members 40 fixed to a key top 60 positioned outside the casing 10. A center support cylinder 33 where a support shaft 42 of the contact press members 40 is inserted is integrally formed with the contact rubber 30, and the contact press members 40 and the key top 60 are returned to neutral positions by elastic restoration force of the central section support cylinder 33 for assisting restoration force of the cup-like contact sections 31. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は多方向スイッチに関し、特に、テレビゲーム装置やポータブル型電子ゲーム装置などに用いられるコントロールキー装置に関する。
【0002】
【背景技術】
従来、テレビゲーム装置やポータブル型電子ゲーム装置などにおいては、例えば特開平11−329161号公報に示されているようなコントロールキー装置が用いられる。
即ち、このコントロールキー装置は、同公報の図8及び図9に示されているように、ケーシングの内部のプリント回路基板上に位置した接点ゴムの複数のカップ状接点部を開閉操作するキートップまたは接点押圧部材を備えるもので、これらのキートップまたは接点押圧部材はプリント回路基板の表面に接する中心部支点軸または支点球体を支点として傾動される。
【0003】
【発明が解決しようとする課題】
しかしながら、これらの従来のコントロールキー装置のキートップは、接点ゴムのカップ状接点部の復元力のみによりキートップが手動操作前の中立位置に復帰されるので、キートップの中立位置復旧に時間が掛かり、敏感な応答が望まれるコントロールパッドなどにおいては、より鋭敏な操作性が望まれる場合が多い。
【0004】
また、従来の同構造においては、ケーシングの内部へ向かって大きな外力でキートップが押圧されると、この外力が硬質の支点軸または支点球体を介して直接にプリント回路基板に加わり、同プリント回路基板に無理な力が作用して”ワレ”てしまう場合があった。
【0005】
そして、硬質の接点軸または支点球体のプリント回路基板表面への直接接触または転接によりプリント回路基板の表面が早期に摩損されてしまうばかりでなく、同接触部の削りクズによりスイッチの動作不良の原因となる。
【0006】
本発明の目的は、以上に述べたような従来のコントロールキー装置の問題に鑑み、敏感な応答性が得られ、外力によりプリント回路基板が容易に破壊されることがなく、硬質な支点軸部とプリント回路基板の直接接触を防止したコントロールキー装置を得るにある。
【0007】
【課題を解決するための手段】
この目的を達成するため、本発明は、ケーシングの内部に組み込んだプリント回路基板の表面に接点ゴムを位置し、前記ケーシングの外部に位置するキートップに固定する接点押圧部材により前記接点ゴムの複数のカップ状接点部を操作するコントロールキー装置において、前記接点ゴムは前記接点押圧部材の支点軸を挿入される中心部支持筒を一体成形され、前記カップ状接点部の復元力に助力する前記中心部支持筒の弾性復元力により前記接点押圧部材及びキートップが中立位置に戻されるコントロールキー装置を提案するものである。
【0008】
後述する本発明の好ましい実施例の説明においては、
1)前記支点軸は大径支点軸であり、同大径支点軸を取り囲む前記中心部支持筒は厚肉円筒である構造、
2)前記中心部支持筒は前記大径支点軸を挿入できる有底孔を内部に形成された厚肉円筒である構造
3)前記中心部支持筒は前記大径支点軸を挿入できる有底孔を内部に形成されかつ基部よりの肉厚を先端部の肉厚よりも増大された厚肉円筒である構造が説明される。
【0009】
【発明の実施の形態】
以下、図面について本発明の実施例の詳細を説明する。
図示実施例はテレビゲーム装置のコントロールパッドに設計されたもので、コントロールパッドのケーシング10の内部には表面に複数の接点導体21を形成されたプリント回路基板20が組み込まれている。
【0010】
そして、図2に示すように、同プリント回路基板20の表面には円周方向に隣り合って配置された複数(図の場合4個)のカップ状接点部31を有する接点ゴム30が位置され、これらのカップ状接点部31はケーシング10とプリント回路基板20との間の空間に組み込まれる樹脂製接点押圧部材40の対応押圧部41で押圧操作される。これらの接点ゴム30の内部には対応した前記接点導体21に対して僅かに離間対向されたスイッチ導体32が保持されるから、接点押圧部材40の押圧部41でカップ状接点部31が押圧されると、対応したスイッチ導体32が対応接点導体21に接触される。
【0011】
硬質樹脂で射出成形される接点押圧部材40はその中心底部に大径支点軸42を有し、底面を球面状とされた大径支点軸42は前記接点ゴム30の中心に一体成形する中心部支持筒33の有底孔51にきつく嵌められる。中心に有底孔51を形成された中心部支持筒33は筍状に段付とすることにより基部ほど厚肉の厚肉円筒とされ、その曲げ変形時の復元力は対応カップ状接点部31の復元力を補助できる。
【0012】
また、前記ケーシング10の内面には前記各押圧部41の不存在位置から下方に垂下された円弧状の4個の廻止め43が一体に成形され、これらの廻止め43により各押圧部41は円周方向の位置を規制されて対応カップ状接点部31の頂面に対応した位置に位置付けされる。
前記接点押圧部材40の中間部には前記各押圧部41を外周部に保持した球面摺接部44が一体成形され、同球面摺接部44の外周面は前記ケーシング10の内面の球面案内11に摺接され、同球面案内11に圧接されることにより接点押圧部材40の浮き上がりが防止される。なお、前記ケーシング10の中心部には接点押圧部材40の頭部を外部に露呈できる口径の大きな貫通孔52が形成される。
【0013】
そして、ケーシング10外に露呈された前記接点押圧部材40の頭部にはキートップ60の中心軸61を受け入れる中心孔53が形成され、同中心軸61の端面に連接される角軸62は前記中心孔53の孔底の角穴54に緊密に圧入され、この圧入力により接点押圧部材40からのキートップ60の抜け出しが阻止される。
【0014】
前記キートップ60はプレーヤの親指を当てがうことができる操作面63を備え、プレーヤは同操作面63に親指を当てがって希望する方向にキートップ60を操作することにより、対応したスイッチ導体32を接点導体21にメークすることができる。
【0015】
図示実施例によるコントロールキー装置は、以上のような構造であるから、キートップ60の操作面63に外力を加えない状態では、キートップ60及び接点押圧部材40は、接点ゴム30のカップ状接点部31及び中心部支持筒33の復元力により、図1の実線示の中立位置にある。
したがって、この状態で図1の下向きの強い外力がキートップ60に加えられると、この外力は大径接点軸の面積の大きな底面で分散され、接点ゴム30の中心部で緩衝されてプリント回路基板20に伝達されるから、プリント回路基板20の一部に局部的な大きな力が伝えられるのを防止して、同プリント回路基板20が損傷されるのが阻止される。
【0016】
また、キートップ60を希望する方向に傾動すると、同キートップ60は接点押圧部材40の大径支点軸42を支点として傾動され、接点押圧部材40の傾動方向の押圧部41が接点ゴム30の対応カップ状接点部31の頂面を下方に押し下げる。このため、対応カップ状接点部31のスイッチ導体32がプリント回路基板20の接点導体21に接触し、スイッチ回路がメークされる。
この場合、傾動方向のカップ状接点部31の弾性変形と同時に、接点ゴム30の中心部支持筒33が曲げ変形されるが、厚肉の中心部支持筒33の復元力が接点押圧部材40の大径支点軸42に加わった状態となる。
【0017】
さらに、キートップ60の操作後にあっては、変形したカップ状接点部31の弾性復元力により対応押圧部41が押し上げられ、接点押圧部材40及びキートップ60が中立位置に戻されることになるけれども、この中立位置への復元時にあっては、接点ゴム30の中心部支持筒33の曲げ復元力により助力されるため、接点押圧部材40及びキートップ60が急速に中立位置に戻り、いわゆるキレのよい操作性が得られる。
【0018】
なお、図示実施例の構造では、接点押圧部材40の大径支点軸42は接点ゴム30の有底孔51中に挿入され、同大径支点軸42とプリント回路基板20との直接接触が阻止されているので、プリント回路基板20が直接接触や転接で摩損されるのを防止でき、削りクズで電気接点部が接触不良となるのを抑制できる。
【0019】
【発明の効果】
以上の説明から明らかなように、本発明によれば、接点ゴムに一体成形する中心部支持筒の弾性復元力をキートップ及び接点押圧部材の中立位置への復帰力に利用できるので、応答性のよい、敏感な位置を得ることができる。また、接点押圧部材の大径支点軸を中心部支持筒の有底孔に嵌めた構造では、強い外力によりプリント回路基板が破壊されるのを回避できるばかりでなく、寿命が長く、削りクズの発生のない構造とできる利点がある。
【図面の簡単な説明】
【図1】本発明によるコントロールキー装置の図2の2−2線に沿う拡大断面図である。
【図2】キートップ及びケーシングを取り外して示す同コントロールキー装置の拡大平面図である。
【図3】同コントロールキー装置要部の分解断面図である。
【図4】同コントロールキー装置のコントロールキーの平面図である。
【図5】同コントロールキー装置の接点押圧部材の平面図である。
【符号の説明】
10    ケーシング
11    球面案内
20    プリント回路基板
21    接点導体
30    接点ゴム
31    カップ状接点部
32    スイッチ導体
33    中心部支持筒
40    接点押圧部材
41    押圧部
42    大径支点軸
44    球面摺接部
51    有底孔
52    貫通孔
53    中心孔
60    キートップ
61    中心軸
63    操作面
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a multidirectional switch, and more particularly to a control key device used in a video game device, a portable electronic game device, and the like.
[0002]
[Background]
Conventionally, in a video game device, a portable electronic game device, and the like, for example, a control key device as disclosed in JP-A-11-329161 is used.
That is, as shown in FIG. 8 and FIG. 9 of the publication, this control key device is a key top that opens and closes a plurality of cup-shaped contact portions of contact rubber positioned on a printed circuit board inside the casing. Alternatively, a contact pressing member is provided, and these key tops or contact pressing members are tilted with a central fulcrum shaft or fulcrum sphere in contact with the surface of the printed circuit board as a fulcrum.
[0003]
[Problems to be solved by the invention]
However, the key tops of these conventional control key devices return to the neutral position before manual operation only by the restoring force of the cup-shaped contact portion of the contact rubber. In a control pad or the like for which a sensitive response is desired, a sharper operability is often desired.
[0004]
Further, in the conventional structure, when the key top is pressed with a large external force toward the inside of the casing, the external force is directly applied to the printed circuit board via the hard fulcrum shaft or fulcrum sphere, and the printed circuit There was a case where an excessive force acted on the substrate to “break”.
[0005]
The surface of the printed circuit board is not only quickly worn by direct contact or rolling of the hard contact shaft or fulcrum sphere to the surface of the printed circuit board, but also the switch malfunctions due to scraping scraps on the contact part. Cause.
[0006]
In view of the problems of the conventional control key device as described above, the object of the present invention is to obtain a sensitive response, and the printed circuit board is not easily broken by an external force. And a control key device that prevents direct contact between the printed circuit board and the printed circuit board.
[0007]
[Means for Solving the Problems]
In order to achieve this object, according to the present invention, a plurality of contact rubbers are provided by a contact pressing member that is positioned on a surface of a printed circuit board incorporated in a casing and fixed to a key top located outside the casing. In the control key device for operating the cup-shaped contact portion, the contact rubber is integrally formed with a center support cylinder into which the fulcrum shaft of the contact pressing member is inserted, and the center assists the restoring force of the cup-shaped contact portion. A control key device is proposed in which the contact pressing member and the key top are returned to the neutral position by the elastic restoring force of the part support cylinder.
[0008]
In the description of the preferred embodiments of the invention described below,
1) The fulcrum shaft is a large-diameter fulcrum shaft, and the center support tube surrounding the large-diameter fulcrum shaft is a thick-walled cylinder.
2) The center support cylinder is a thick cylinder with a bottomed hole into which the large diameter fulcrum shaft can be inserted. 3) The center support cylinder has a bottomed hole into which the large diameter fulcrum shaft can be inserted. A structure is described which is a thick-walled cylinder formed inside and having a thickness greater than the thickness of the base than the thickness of the tip.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the details of the embodiments of the present invention will be described with reference to the drawings.
The illustrated embodiment is designed as a control pad of a video game device, and a printed circuit board 20 having a plurality of contact conductors 21 formed on the surface thereof is incorporated in a casing 10 of the control pad.
[0010]
As shown in FIG. 2, contact rubber 30 having a plurality of (four in the case of the figure) cup-shaped contact portions 31 arranged adjacent to each other in the circumferential direction is positioned on the surface of the printed circuit board 20. These cup-shaped contact portions 31 are pressed by a corresponding pressing portion 41 of a resin contact pressing member 40 incorporated in a space between the casing 10 and the printed circuit board 20. Since the switch rubber 32 slightly spaced from the corresponding contact conductor 21 is held inside the contact rubber 30, the cup-shaped contact portion 31 is pressed by the pressing portion 41 of the contact pressing member 40. Then, the corresponding switch conductor 32 is brought into contact with the corresponding contact conductor 21.
[0011]
The contact pressing member 40 that is injection-molded with a hard resin has a large-diameter fulcrum shaft 42 at the center bottom, and the large-diameter fulcrum shaft 42 having a spherical bottom surface is a central part that is integrally formed at the center of the contact rubber 30. It is tightly fitted in the bottomed hole 51 of the support tube 33. The center support cylinder 33 formed with a bottomed hole 51 in the center is stepped like a bowl to make the base thicker and thicker, and the restoring force upon bending deformation is the corresponding cup-shaped contact 31. Can help restore the resilience.
[0012]
Also, four arc-shaped detents 43 are formed integrally on the inner surface of the casing 10 so as to hang downward from the positions where the respective depressing portions 41 are not present. The position in the circumferential direction is restricted, and the position is set at a position corresponding to the top surface of the corresponding cup-shaped contact portion 31.
A spherical sliding contact portion 44 holding the pressing portions 41 on the outer peripheral portion is integrally formed at an intermediate portion of the contact pressing member 40, and the outer peripheral surface of the spherical sliding contact portion 44 is a spherical guide 11 on the inner surface of the casing 10. The contact pressing member 40 is prevented from being lifted by being in sliding contact with the spherical guide 11. A through hole 52 having a large diameter that can expose the head of the contact pressing member 40 to the outside is formed at the center of the casing 10.
[0013]
A central hole 53 for receiving the central shaft 61 of the key top 60 is formed in the head of the contact pressing member 40 exposed outside the casing 10, and the angular shaft 62 connected to the end surface of the central shaft 61 is The key top 60 is tightly press-fitted into the square hole 54 at the bottom of the center hole 53, and the key top 60 is prevented from coming out of the contact pressing member 40 by this pressure input.
[0014]
The key top 60 is provided with an operation surface 63 on which the player's thumb can be applied, and the player operates the key top 60 in a desired direction by applying the thumb to the operation surface 63 to thereby switch the corresponding switch. The conductor 32 can be made into the contact conductor 21.
[0015]
Since the control key device according to the illustrated embodiment has the above-described structure, the key top 60 and the contact pressing member 40 are cup-shaped contacts of the contact rubber 30 when no external force is applied to the operation surface 63 of the key top 60. Due to the restoring force of the portion 31 and the central support tube 33, the center 31 is in the neutral position shown by the solid line in FIG.
Accordingly, when a strong external force downward in FIG. 1 is applied to the key top 60 in this state, the external force is dispersed on the bottom surface having a large area of the large-diameter contact shaft and is buffered at the center of the contact rubber 30 to be printed circuit board. 20 is prevented from transmitting a large local force to a part of the printed circuit board 20 and is prevented from being damaged.
[0016]
When the key top 60 is tilted in a desired direction, the key top 60 is tilted with the large-diameter fulcrum shaft 42 of the contact pressing member 40 as a fulcrum, and the pressing portion 41 in the tilting direction of the contact pressing member 40 is The top surface of the corresponding cup-shaped contact portion 31 is pushed downward. For this reason, the switch conductor 32 of the corresponding cup-shaped contact portion 31 contacts the contact conductor 21 of the printed circuit board 20, and the switch circuit is made.
In this case, the center support tube 33 of the contact rubber 30 is bent and deformed simultaneously with the elastic deformation of the cup-shaped contact portion 31 in the tilting direction, but the restoring force of the thick center support tube 33 is applied to the contact pressing member 40. The large diameter fulcrum shaft 42 is added.
[0017]
Further, after the operation of the key top 60, the corresponding pressing portion 41 is pushed up by the elastic restoring force of the deformed cup-shaped contact portion 31, and the contact pressing member 40 and the key top 60 are returned to the neutral position. At the time of restoration to the neutral position, the contact pressing member 40 and the key top 60 quickly return to the neutral position because the bending restoring force of the center support tube 33 of the contact rubber 30 is restored. Good operability can be obtained.
[0018]
In the structure of the illustrated embodiment, the large-diameter fulcrum shaft 42 of the contact pressing member 40 is inserted into the bottomed hole 51 of the contact rubber 30 to prevent direct contact between the large-diameter fulcrum shaft 42 and the printed circuit board 20. Therefore, it is possible to prevent the printed circuit board 20 from being worn by direct contact or rolling contact, and to prevent the electrical contact portion from being poorly contacted due to shavings.
[0019]
【The invention's effect】
As is clear from the above description, according to the present invention, since the elastic restoring force of the central support tube formed integrally with the contact rubber can be used for the return force to the neutral position of the key top and the contact pressing member, Can get a good and sensitive position. In addition, the structure in which the large-diameter fulcrum shaft of the contact pressing member is fitted in the bottomed hole of the center support cylinder not only can prevent the printed circuit board from being destroyed by a strong external force, but also has a long life, There is an advantage that it can be made a structure without generation.
[Brief description of the drawings]
FIG. 1 is an enlarged cross-sectional view of the control key device according to the present invention taken along line 2-2 of FIG.
FIG. 2 is an enlarged plan view of the control key device with the key top and casing removed.
FIG. 3 is an exploded cross-sectional view of the main part of the control key device.
FIG. 4 is a plan view of a control key of the control key device.
FIG. 5 is a plan view of a contact pressing member of the control key device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Casing 11 Spherical guide 20 Printed circuit board 21 Contact conductor 30 Contact rubber 31 Cup-shaped contact part 32 Switch conductor 33 Center support cylinder 40 Contact pressing member 41 Pressing part 42 Large diameter fulcrum shaft 44 Spherical sliding contact part 51 Bottomed hole 52 Through hole 53 Center hole 60 Key top 61 Center axis 63 Operation surface

Claims (4)

ケーシングの内部に組み込んだプリント回路基板の表面に接点ゴムを位置し、前記ケーシングの外部に位置するキートップに固定する接点押圧部材により前記接点ゴムの複数のカップ状接点部を操作するコントロールキー装置において、前記接点ゴムは前記接点押圧部材の支点軸を挿入される中心部支持筒を一体成形され、前記カップ状接点部の復元力に助力する前記中心部支持筒の弾性復元力により前記接点押圧部材及びキートップが中立位置に戻されることを特徴とするコントロールキー装置。A control key device for positioning a contact rubber on the surface of a printed circuit board incorporated in the casing and operating a plurality of cup-shaped contact portions of the contact rubber by a contact pressing member fixed to a key top positioned outside the casing The contact rubber is formed integrally with a center support cylinder into which the fulcrum shaft of the contact pressing member is inserted, and the contact pressing is performed by the elastic restoring force of the center support cylinder which assists the restoring force of the cup-shaped contact part. A control key device, wherein the member and the key top are returned to the neutral position. 前記支点軸は大径支点軸であり、同大径支点軸を取り囲む前記中心部支持筒は厚肉円筒であることを特徴とする請求項1記載のコントロールキー装置。2. The control key device according to claim 1, wherein the fulcrum shaft is a large-diameter fulcrum shaft, and the center support cylinder surrounding the large-diameter fulcrum axis is a thick cylinder. 前記中心部支持筒は前記大径支点軸を挿入できる有底孔を内部に形成された厚肉円筒であることを特徴とする請求項2記載のコントロールキー装置。3. The control key device according to claim 2, wherein the central support cylinder is a thick cylinder having a bottomed hole into which the large-diameter fulcrum shaft can be inserted. 前記中心部支持筒は前記大径支点軸を挿入できる有底孔を内部に形成されかつ基部よりの肉厚を先端部の肉厚よりも増大された厚肉円筒であることを特徴とする請求項2または請求項3記載のコントロールキー装置。The center support cylinder is a thick cylinder in which a bottomed hole into which the large-diameter fulcrum shaft can be inserted is formed, and the thickness from the base is increased from the thickness of the tip. The control key device according to claim 2 or claim 3.
JP2002166393A 2002-06-07 2002-06-07 Control key apparatus Pending JP2004014307A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008277018A (en) * 2007-04-26 2008-11-13 Canon Inc Switch device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008277018A (en) * 2007-04-26 2008-11-13 Canon Inc Switch device

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