WO2016110880A1 - Keyboard unit - Google Patents

Keyboard unit Download PDF

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Publication number
WO2016110880A1
WO2016110880A1 PCT/JP2015/000014 JP2015000014W WO2016110880A1 WO 2016110880 A1 WO2016110880 A1 WO 2016110880A1 JP 2015000014 W JP2015000014 W JP 2015000014W WO 2016110880 A1 WO2016110880 A1 WO 2016110880A1
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WO
WIPO (PCT)
Prior art keywords
keyboard unit
push button
case
hole
gap
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PCT/JP2015/000014
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French (fr)
Japanese (ja)
Inventor
加藤　貴久
正一郎 林
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三菱電機株式会社
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Priority to PCT/JP2015/000014 priority Critical patent/WO2016110880A1/en
Publication of WO2016110880A1 publication Critical patent/WO2016110880A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials

Definitions

  • the present invention relates to a keyboard unit used as a device for inputting characters, numbers, symbols, or the like.
  • a keyboard unit has been used as one of input devices for inputting characters into various devices.
  • the usage environment and usage conditions in which the keyboard unit is used greatly depend on the application of the device in which the keyboard unit is installed. For example, when a keyboard unit is used in a personal computer used in an office, etc., it is generally a good environment with good air conditioning. However, when a keyboard unit is installed in a machine tool, it is compared to the office environment. In many cases, the usage environment and usage conditions are poor. When used in an inferior operating environment or operating condition like a machine tool, the switches that make up the keyboard unit may malfunction and the keyboard unit may not function properly. Various measures have been proposed to prevent such malfunction of the switch.
  • Patent Document 1 describes a push button switch characterized in that a peripheral wall protrudes from the case so as to surround the base of the button protruding from the case, and a space is provided between the peripheral wall and the button. Has been. As a result, according to Patent Document 1, even if a foreign substance such as an adhesive or liquid enters, it does not cause malfunction.
  • Japanese Patent Application Laid-Open No. 2004-228561 has a description of a diagram in which a push button part touched by an operator and a switch part for performing ON / OFF determination by electrical conduction are partitioned by an elastomer dome.
  • Patent Document 1 even if foreign matter is less likely to be caught between the peripheral wall and the push button by providing a space between the peripheral wall and the push button, the foreign matter that has entered the peripheral wall is provided in the case inside the peripheral wall.
  • the gap between the hole and the push button accumulates, and the push button is prevented from sliding, and the operability of the push button may be lowered.
  • mist-like foreign matter enters it can reach the gap between the circular hole provided in the case inside the peripheral wall and the push button, so that foreign matter accumulates in the gap, resulting in the operability of the push button. Will be reduced.
  • Patent Document 2 since the gap between the elastomer dome portion and the wall becomes narrower toward the inside of the switch, the deformation of the elastomer dome is limited by the foreign matter accumulated in the gap, and the operability is deteriorated when the foreign matter accumulates. In addition, it is difficult to remove the foreign matter accumulated in the gap because there is no moving path.
  • keyboard units made up of molded molds
  • burrs are likely to occur on the mold mating surface during manufacturing, so the mold mating surface is placed inside the case outer surface to prevent the operator from touching the burrs. Often provided.
  • the slope is As a result, the gap between the side of the push button and the wall of the hole provided in the case becomes narrower toward the inside of the keyboard unit. Configured.
  • the present invention has been made in view of the above, and even when foreign matter remains in the gap between the side surface of the push button and the wall surface of the hole provided in the case, the operability deterioration of the push button can be easily recovered.
  • the purpose is to obtain a keyboard unit.
  • the gap between the wall surface of the hole and the side surface of the push button is expanded toward the inside of the keyboard, and the push button is formed inside the keyboard.
  • the side surface of this is open.
  • the gap between the wall surface of the hole provided in the case and the side surface of the push button becomes wider toward the inside of the keyboard unit, the gap becomes wider toward the inside than the position where foreign matter is accumulated, The foreign object can easily move toward the inside of the keyboard unit.
  • the gap between the hole wall provided in the case and the side of the push button the foreign matter moves, drops, and is removed toward the keyboard unit by blowing air from the front of the unit. Therefore, the operability of the push button can be restored.
  • FIG. 1 is an external perspective view of a keyboard unit 1 showing an embodiment according to the present invention.
  • FIG. 2 is a cross-sectional view of the keyboard unit 1 showing a state in which the push button 2 protrudes from the hole 4 provided in the case 3.
  • FIG. 3 is an external perspective view of the push button 2 having the blindfold collar 10.
  • FIG. 4 is a cross-sectional view of the state in which the side surface of the push button 2 is supported by the case 3, the bottom surface of the push button 2 is supported by the switch 5, and the push button 2 is held.
  • the keyboard unit 1 includes a push button 2, a case 3 that supports the push button 2 from the side, and a substrate 6 on which a switch 5 is mounted.
  • a hole 4 is provided on the front surface of the case 3.
  • the push button 2 protrudes.
  • the protruding push button 2 has a gap 12 between the case 3 and the case 3 so as to be slidable.
  • the wall surface of the hole 4 is provided with an inclination 11 in order to widen the gap 12 with the side surface of the push button 2 toward the inside of the keyboard unit.
  • a blind collar 10 is formed on the push button 2 so that the inside of the keyboard unit cannot be seen from the outside of the keyboard unit.
  • the volume of the gap between the case 3 and the push button 2 increases toward the inside of the keyboard unit. Even if foreign matter accumulates in the gap 12, the volume of the gap is set larger toward the inside of the keyboard unit than the volume of the accumulated foreign matter. For this reason, a moving path toward the inside of the keyboard unit is secured for the accumulated foreign matter, and the foreign matter can be moved into the keyboard unit by applying external force by applying air or the like from the outside of the keyboard unit. As a result, the operability of the push button 2 can be recovered.
  • the wall surface of the hole provided in the case is inclined so that the gap between the case and the push button increases toward the inside of the keyboard unit. Even if accumulated, foreign matter can be easily removed.
  • the keyboard unit has an open structure without any object that creates a gap with the side of the push button, foreign matter that has accumulated and removed in the gap between the case and the push button, or foreign matter that has entered the keyboard unit, Since the sliding of the push button is not hindered, there is an effect that the operability of the push button can be easily recovered.
  • the blind collar 10 is formed on the push button 2 so that the inside of the keyboard unit cannot be seen from the outside of the keyboard unit.
  • the blind collar 10 may not be formed on the push button 2.
  • FIG. 5 is a cross-sectional view of the push button 2 whose side surfaces are supported by the case 3 in which chamfers 15 (for example, C chamfering or R chamfering) are provided at the corners of the hole 4 outside the keyboard unit 1 over the entire circumference.
  • chamfers 15 for example, C chamfering or R chamfering
  • the wall surface of the hole 4 is provided with an inclination 11 and a chamfer 15.
  • a mold mating surface 14 is provided at the boundary between the inclination 11 and the chamfer 15. It will be.
  • the mold matching surface 14 can be provided inside the outer surface of the case 3, even if burrs are generated, it is likely to be generated inside the outer surface of the case 3.
  • the gap 12 having such a shape is narrow only within a limited range near the outer surface of the case 3, and most of the gap is inside the keyboard unit. Therefore, the foreign matter can be moved to the inside of the keyboard unit by applying air or the like from the outside of the keyboard unit and applying an external force as in the first embodiment.
  • the second embodiment as in the first embodiment, even if foreign matter accumulates in the gap by forming the shape such that the majority of the gap between the case and the push button increases toward the inside of the keyboard unit.
  • the foreign matter can be easily removed, and the operability of the push button can be recovered.
  • the mold mating surface can be set to the inside from the outer surface of the case when molding the case with the mold. Even if it occurs, it is inside from the outer surface of the case, so that it is possible to prevent discomfort caused by the operator touching the burr. In addition, there is an effect that air easily enters the gap between the case and the push button, and foreign substances accumulated in the gap can be easily removed.
  • FIG. 6 is a cross-sectional view of the push button 2 whose side surface is supported by the case 3 with the mold matching surface 14, the flush surface 13, the inclination 11, and the chamfer 15 over the entire circumference of the wall surface of the hole 4.
  • FIG. 7 is a diagram for explaining a difference in the cross-sectional shape of the finished case 3 depending on the mold 16 and the die 17 used at the time of molding the case 3 and the position thereof.
  • the wall surface of the hole 4 is provided with an inclination 11 so that a gap with the side surface of the push button 2 increases toward the inside of the keyboard unit, and further, a surface 13 that is flush with the mold matching surface 14 is provided.
  • the mold 16 and the mold 17 are arranged as shown in FIG. At this time, even if the die 16 and the die 17 are displaced within the range of the die mating surface 14 and the flush surface 13, the dimension of the hole 4 does not change as shown in FIG. 7 (d). .
  • the mold matching surface 14 and the flush surface 13 do not exist on the wall surface of the hole 4, the mold 3 and the mold die 17 are not displaced and the case 3 is molded as shown in FIG.
  • the size of the hole 4 is small as shown in FIG. 7 (b). turn into.
  • the hole size does not change and the molding defect can be suppressed. is there.
  • the keyboard unit according to the present invention can be easily recovered even in a poor operating environment even if the sliding property of the push button temporarily decreases due to foreign matter, and is suitable for use without impairing the operability. ing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Push-Button Switches (AREA)

Abstract

In the present invention, a keyboard unit 1 is provided with pushbuttons 2 and a case 3 that supports the side surfaces of the pushbuttons 2, wherein the pushbuttons 2 project from openings 4 provided on the case 3. Gaps 12 between the side surfaces of the pushbuttons 2 and the wall surfaces of the case 3, through the provision of a slant 11 to the wall surfaces of the openings 4 provided on the case 3, widen in the direction of the interior of the keyboard unit 1 such that foreign materials collected in gaps 12 can move to the interior of the keyboard unit 1. The side surfaces of the pushbuttons 2 are open to the interior of the keyboard unit 1.

Description

キーボードユニットKeyboard unit
この発明は、文字、数字、又は記号などの入力用機器として用いられるキーボードユニットに関するものである。 The present invention relates to a keyboard unit used as a device for inputting characters, numbers, symbols, or the like.
各種装置への文字入力等を行う入力用機器の一つとして、キーボードユニットが用いられてきた。キーボードユニットが使用される使用環境や使用条件は、キーボードユニットが設置される装置の用途によって大きく左右される。例えば、オフィス等で使用されるパソコン等にキーボードユニットが使用される場合には一般的には空調が行き届いた恵まれた環境であるが、工作機械にキーボードユニットが設置された場合、オフィス環境に比べ劣悪な使用環境や使用条件であることが多い。工作機械のように劣悪な使用環境や使用条件で使用した場合、キーボードユニットを構成しているスイッチが動作不良を起こし、キーボードユニットが正常に機能しない恐れがある。このようなスイッチの動作不良を防止する為に、各種対策が提案されている。例えば、特許文献１には、ケースから突出したボタンの基部を囲むように、ケースより周壁を突設し、周壁とボタンとの間に空間を設けたことを特徴とする押しボタン式スイッチについて記載されている。これにより、特許文献１によれば、粘着物や液体などの異物が侵入しても動作不良にならないとされている。 A keyboard unit has been used as one of input devices for inputting characters into various devices. The usage environment and usage conditions in which the keyboard unit is used greatly depend on the application of the device in which the keyboard unit is installed. For example, when a keyboard unit is used in a personal computer used in an office, etc., it is generally a good environment with good air conditioning. However, when a keyboard unit is installed in a machine tool, it is compared to the office environment. In many cases, the usage environment and usage conditions are poor. When used in an inferior operating environment or operating condition like a machine tool, the switches that make up the keyboard unit may malfunction and the keyboard unit may not function properly. Various measures have been proposed to prevent such malfunction of the switch. For example, Patent Document 1 describes a push button switch characterized in that a peripheral wall protrudes from the case so as to surround the base of the button protruding from the case, and a space is provided between the peripheral wall and the button. Has been. As a result, according to Patent Document 1, even if a foreign substance such as an adhesive or liquid enters, it does not cause malfunction.
特許文献２には、操作者が触れる押しボタン部と、電気的導通によるＯＮ/ＯＦＦ判定を行うスイッチ部を、エラストマーのドームにより仕切られた図の記載がある。 Japanese Patent Application Laid-Open No. 2004-228561 has a description of a diagram in which a push button part touched by an operator and a switch part for performing ON / OFF determination by electrical conduction are partitioned by an elastomer dome.
特開平7-85749号公報Japanese Unexamined Patent Publication No. 7-85749 特開昭61-140009号公報Japanese Patent Laid-Open No. 61-140009
特許文献１では、周壁と押しボタンとの間に空間を設けたことにより異物が周壁と押しボタンの間に挟まりにくくしたとしても、周壁内部に侵入した異物が周壁内部のケースに設けられた円孔と押しボタンとの間の隙間に溜まり押しボタンの摺動が妨げられ、押しボタンの操作性が低下する恐れがある。特にミスト状の異物が侵入した場合、周壁内部のケースに設けられた円孔と押しボタンとの間の隙間まで到達することができるので、その隙間に異物が溜まり、結果押しボタンの操作性が低下することとなる。 In Patent Document 1, even if foreign matter is less likely to be caught between the peripheral wall and the push button by providing a space between the peripheral wall and the push button, the foreign matter that has entered the peripheral wall is provided in the case inside the peripheral wall. The gap between the hole and the push button accumulates, and the push button is prevented from sliding, and the operability of the push button may be lowered. In particular, when mist-like foreign matter enters, it can reach the gap between the circular hole provided in the case inside the peripheral wall and the push button, so that foreign matter accumulates in the gap, resulting in the operability of the push button. Will be reduced.
特許文献２では、エラストマードーム部と壁の隙間はスイッチ内部に向かって狭くなるため、隙間に溜まった異物によりエラストマードームの変形は制限され、異物が溜まった場合には操作性が低下する。また、隙間に溜まった異物は移動する経路がないため除去するのが困難である。 In Patent Document 2, since the gap between the elastomer dome portion and the wall becomes narrower toward the inside of the switch, the deformation of the elastomer dome is limited by the foreign matter accumulated in the gap, and the operability is deteriorated when the foreign matter accumulates. In addition, it is difficult to remove the foreign matter accumulated in the gap because there is no moving path.
一方、工作機械には機械を操作するためのキーボードユニットを設置する場合がある。その場合、押しボタンを摺動可能とするために、ケースに設けられた孔の壁面と押しボタンの側面との間に隙間が必要となる。このとき、工作機械が使用される環境は、ミスト状になった切削油がキーボードユニットに降り注ぐ、又は、機械操作者の手に切削油が付着した状態で機械を操作する、又は、加工槽から飛び散った切削油が直接、キーボードユニットへ掛かるものとなっている。これにより、押しボタンの側面とケースに設けられた孔の壁面の隙間には切削油が異物として溜まり、押しボタンの摺動を妨げる可能性がある。また、金型成形品で構成されるキーボードユニットでは、製造時金型の合わせ面にバリが発生しやすい為、操作者がバリに触れないよう、金型の合わせ面をケース外表面より内部に設けることが多い。この時、金型成型後、金型を抜きやすくするために、金型には抜き勾配を設ける必要があるが、金型の合わせ面をケース外表面より内部に設けるためには、その勾配はケース外表面から金型合わせ面に向かって狭くなるように傾斜をつけることになり、その結果、押しボタンの側面とケースに設けられた孔の壁面の隙間がキーボードユニット内部に向かって狭くなるように構成される。このようにキーボードユニット内部に向かって隙間が狭くなる構成の為、押しボタンの側面とケースに設けられた孔の壁面の隙間には異物が留まり易く、また、キーボードユニット正面からエアーを吹付けても異物が移動しにくく、異物を除去するのが困難である。異物が押しボタンの側面とケースに設けられた孔の壁面の隙間に留まると、押しボタンの摺動が妨げられ、押しボタンの操作性が低下する恐れがある。 On the other hand, there are cases where a machine unit is provided with a keyboard unit for operating the machine. In that case, in order to make the push button slidable, a gap is required between the wall surface of the hole provided in the case and the side surface of the push button. At this time, the environment in which the machine tool is used is that the mist-like cutting oil pours into the keyboard unit, or the machine is operated with the cutting oil attached to the machine operator's hand, or from the processing tank. The scattered cutting oil is directly applied to the keyboard unit. Thereby, cutting oil accumulates as a foreign material in the clearance between the side surface of the push button and the wall surface of the hole provided in the case, and there is a possibility that the push button is prevented from sliding. Also, with keyboard units made up of molded molds, burrs are likely to occur on the mold mating surface during manufacturing, so the mold mating surface is placed inside the case outer surface to prevent the operator from touching the burrs. Often provided. At this time, in order to make it easier to remove the mold after molding, it is necessary to provide a draft in the mold, but in order to provide the mold mating surface inside from the outer surface of the case, the slope is As a result, the gap between the side of the push button and the wall of the hole provided in the case becomes narrower toward the inside of the keyboard unit. Configured. Since the gap narrows toward the inside of the keyboard unit in this way, foreign objects are likely to stay in the gap between the side surface of the push button and the wall surface of the hole provided in the case, and air is blown from the front of the keyboard unit. However, it is difficult for foreign matter to move and it is difficult to remove the foreign matter. If the foreign matter stays in the gap between the side surface of the push button and the wall surface of the hole provided in the case, sliding of the push button is hindered, and the operability of the push button may be lowered.
この発明は、上記に鑑みてなされたものであって、押しボタンの側面とケースに設けられた孔の壁面の隙間に異物が留まった場合においても、押しボタンの操作性低下を容易に回復できるキーボードユニットを得ることを目的とする。 The present invention has been made in view of the above, and even when foreign matter remains in the gap between the side surface of the push button and the wall surface of the hole provided in the case, the operability deterioration of the push button can be easily recovered. The purpose is to obtain a keyboard unit.
上述した課題を解決し、目的を達成するために、本発明のキーボードユニット構造は、孔の壁面と押しボタンの側面との間の隙間がキーボード内部に向かって広がっていき、その内部では押しボタンの側面が開放されている構成を有するものである。 In order to solve the above-described problems and achieve the object, in the keyboard unit structure of the present invention, the gap between the wall surface of the hole and the side surface of the push button is expanded toward the inside of the keyboard, and the push button is formed inside the keyboard. The side surface of this is open.
　この発明によれば、キーボードユニット内部に向かって、ケースに設けられた孔の壁面と押しボタンの側面の隙間は広くなるため、異物が溜まっている位置よりも内部に行くほど隙間が広くなり、異物はキーボードユニット内部に向かって移動し易くなる。この結果、ケースに設けられた孔の壁面と押しボタンの側面の隙間に異物が留まった場合においても、ユニット正面からエアーを吹き付ける等すればキーボードユニット内部に向かって異物が移動、脱落し、除去されるため押しボタンの操作性を回復することができる。 According to the present invention, since the gap between the wall surface of the hole provided in the case and the side surface of the push button becomes wider toward the inside of the keyboard unit, the gap becomes wider toward the inside than the position where foreign matter is accumulated, The foreign object can easily move toward the inside of the keyboard unit. As a result, even if foreign matter remains in the gap between the hole wall provided in the case and the side of the push button, the foreign matter moves, drops, and is removed toward the keyboard unit by blowing air from the front of the unit. Therefore, the operability of the push button can be restored.
本発明の実施の形態１に係るキーボードユニットの外観斜視図である。It is an external appearance perspective view of the keyboard unit which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係るキーボードユニットの断面図である。It is sectional drawing of the keyboard unit which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る押しボタンの外観斜視図である。It is an external appearance perspective view of the push button which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る押しボタンの断面図である。It is sectional drawing of the pushbutton which concerns on Embodiment 1 of this invention. 本発明の実施の形態２に係る押しボタンの断面図である。It is sectional drawing of the pushbutton which concerns on Embodiment 2 of this invention. 本発明の実施の形態３に係る押しボタンの断面図である。It is sectional drawing of the pushbutton which concerns on Embodiment 3 of this invention. 本発明の実施の形態３に係る効果を説明するための金型イ、金型ロ、およびケースの断面図である。It is sectional drawing of the metal mold | die, the metal mold | die die, and a case for demonstrating the effect which concerns on Embodiment 3 of this invention.
以下に、この発明にかかるキーボードユニットの実施の形態を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。 Embodiments of a keyboard unit according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.
実施の形態１．
図１は、本発明にかかる実施の形態を示すキーボードユニット１の外観斜視図である。図２は、ケース３に設けられた孔４から押しボタン２が突出した状態を示すキーボードユニット１の断面図である。図３は、目隠しつば１０をもつ押しボタン２の外観斜視図である。図４は、押しボタン２の側面がケース３に支えられ、押しボタン２の底面がスイッチ５に支えられて、押しボタン２が保持された状態の断面図である。 Embodiment 1 FIG.
FIG. 1 is an external perspective view of a keyboard unit 1 showing an embodiment according to the present invention. FIG. 2 is a cross-sectional view of the keyboard unit 1 showing a state in which the push button 2 protrudes from the hole 4 provided in the case 3. FIG. 3 is an external perspective view of the push button 2 having the blindfold collar 10. FIG. 4 is a cross-sectional view of the state in which the side surface of the push button 2 is supported by the case 3, the bottom surface of the push button 2 is supported by the switch 5, and the push button 2 is held.
キーボードユニット１は、押しボタン２と、その押しボタン２を側面から支えるケース３と、スイッチ５を搭載した基板６を備えており、ケース３の前面には孔４が設けられ、その孔４から押しボタン２が突出している。突出した押しボタン２は、摺動可能なようにケース３との間に隙間１２をもつ。孔４の壁面には、キーボードユニット内部に向かって押しボタン２の側面との隙間１２を広くするため、傾斜１１を持たせる。また、ケース３と押しボタン２の間には、隙間１２があるため、キーボードユニット外部からキーボードユニット内部が見えないよう、押しボタン２に目隠しつば１０を形成している。 The keyboard unit 1 includes a push button 2, a case 3 that supports the push button 2 from the side, and a substrate 6 on which a switch 5 is mounted. A hole 4 is provided on the front surface of the case 3. The push button 2 protrudes. The protruding push button 2 has a gap 12 between the case 3 and the case 3 so as to be slidable. The wall surface of the hole 4 is provided with an inclination 11 in order to widen the gap 12 with the side surface of the push button 2 toward the inside of the keyboard unit. Further, since there is a gap 12 between the case 3 and the push button 2, a blind collar 10 is formed on the push button 2 so that the inside of the keyboard unit cannot be seen from the outside of the keyboard unit.
この結果、ケース３と押しボタン２の隙間の容積はキーボードユニット内部に向かうほど大きくなる。隙間１２に異物が溜まったとしても、溜まった異物の容積に対し、隙間の容積はキーボードユニット内部に向かうほど大きく設けられる。そのため、溜まった異物はキーボードユニット内部に向かっての移動通路が確保されており、キーボードユニット外部からエアーなどを当て外力を加えることで異物をキーボードユニット内部へ移動させることができ、結果、異物は除去され押しボタン２の操作性が回復可能となる。 As a result, the volume of the gap between the case 3 and the push button 2 increases toward the inside of the keyboard unit. Even if foreign matter accumulates in the gap 12, the volume of the gap is set larger toward the inside of the keyboard unit than the volume of the accumulated foreign matter. For this reason, a moving path toward the inside of the keyboard unit is secured for the accumulated foreign matter, and the foreign matter can be moved into the keyboard unit by applying external force by applying air or the like from the outside of the keyboard unit. As a result, the operability of the push button 2 can be recovered.
　以上のように、本実施の形態１によれば、ケースと押しボタンの隙間がキーボードユニット内部に向かうほど大きくなるように、ケースに設けられた孔の壁面に傾斜を付けたので、隙間に異物が溜まったとしても、容易に異物を除去することが出来る。また、キーボードユニット内部では押しボタンの側面と隙間を作るような対象物がなく開放された構造にしたため、ケースと押しボタンの隙間に溜まって除去した異物、又はキーボードユニット内部に侵入した異物により、押しボタンの摺動を妨げられることもないので、押しボタンの操作性を容易に回復することが出来るという効果がある。 As described above, according to the first embodiment, the wall surface of the hole provided in the case is inclined so that the gap between the case and the push button increases toward the inside of the keyboard unit. Even if accumulated, foreign matter can be easily removed. In addition, since the keyboard unit has an open structure without any object that creates a gap with the side of the push button, foreign matter that has accumulated and removed in the gap between the case and the push button, or foreign matter that has entered the keyboard unit, Since the sliding of the push button is not hindered, there is an effect that the operability of the push button can be easily recovered.
　なお、本実施の形態１では、キーボードユニット外部からキーボードユニット内部が見えないよう、押しボタン２に目隠しつば１０を形成したが、押しボタン２に目隠しつば１０を形成しなくてもよい。 In the first embodiment, the blind collar 10 is formed on the push button 2 so that the inside of the keyboard unit cannot be seen from the outside of the keyboard unit. However, the blind collar 10 may not be formed on the push button 2.
実施の形態２．
上述した実施の形態１では、ケースの表面からキーボードユニット内部に向かって孔の壁面と押しボタンの側面との隙間が広がっていくようにしたが、孔の角には全周にわたって面取りがあってもよい。図５は、孔４のキーボードユニット１外部側の角に全周にわたって面取り１５（例えばＣ面取り、又はＲ面取り）を設けたケース３に、側面を支えられた押しボタン２の断面図である。 Embodiment 2. FIG.
In the first embodiment described above, the gap between the wall surface of the hole and the side surface of the push button is extended from the surface of the case toward the inside of the keyboard unit. Also good. FIG. 5 is a cross-sectional view of the push button 2 whose side surfaces are supported by the case 3 in which chamfers 15 (for example, C chamfering or R chamfering) are provided at the corners of the hole 4 outside the keyboard unit 1 over the entire circumference.
孔４の壁面には、傾斜１１及び面取り１５が設けられており、このような形状のケース３を金型を用いて成型する場合、傾斜１１と面取り１５の境界に金型合わせ面１４を設けることになる。この場合、金型合わせ面１４はケース３外表面より内部に設けることができるため、バリが発生したとしてもケース３外表面より内部に発生しやすくなる。また、ケース３と押しボタン２の間の隙間１２に異物が溜まった場合は、このような形状の隙間１２でもケース３外表面近くの限定的な範囲でしか狭くなく大部分はキーボードユニット内部に向かって大きくなっている為、実施の形態１と同様にキーボードユニット外部からエアーなどを当て外力を加えることで異物をキーボードユニット内部へ移動させることができる。 The wall surface of the hole 4 is provided with an inclination 11 and a chamfer 15. When the case 3 having such a shape is molded using a mold, a mold mating surface 14 is provided at the boundary between the inclination 11 and the chamfer 15. It will be. In this case, since the mold matching surface 14 can be provided inside the outer surface of the case 3, even if burrs are generated, it is likely to be generated inside the outer surface of the case 3. Further, when foreign matter accumulates in the gap 12 between the case 3 and the push button 2, the gap 12 having such a shape is narrow only within a limited range near the outer surface of the case 3, and most of the gap is inside the keyboard unit. Therefore, the foreign matter can be moved to the inside of the keyboard unit by applying air or the like from the outside of the keyboard unit and applying an external force as in the first embodiment.
この実施の形態２によれば、実施の形態１と同様にケースと押しボタンの隙間の大部分がキーボードユニット内部に向かうほど大きくなるような形状にすることにより、隙間に異物が溜まったとしても、容易に異物を除去することが出来、押しボタンの操作性を回復することが出来るという効果がある。 According to the second embodiment, as in the first embodiment, even if foreign matter accumulates in the gap by forming the shape such that the majority of the gap between the case and the push button increases toward the inside of the keyboard unit. The foreign matter can be easily removed, and the operability of the push button can be recovered.
　また、孔のキーボードユニット外部側の角に全周にわたって面取りを設けたことによって、ケースを金型を用いて成型する時に金型合わせ面をケース外表面より内部に設定することができ、バリが発生したとしてもケース外表面より内部になるため、操作者がバリに触れることによる不快感を防ぐことが出来るという効果がある。また、エアーがケースと押しボタンの隙間に入り易くなり、隙間に溜まった異物を除去し易くなるという効果もある。 Also, by providing chamfering around the entire corner of the keyboard keyboard outside the hole, the mold mating surface can be set to the inside from the outer surface of the case when molding the case with the mold. Even if it occurs, it is inside from the outer surface of the case, so that it is possible to prevent discomfort caused by the operator touching the burr. In addition, there is an effect that air easily enters the gap between the case and the push button, and foreign substances accumulated in the gap can be easily removed.
実施の形態３．
上述した実施の形態２では、孔４の壁面にはキーボードユニット内部に向かって広がっていく傾斜及び面取りを設けるようにしたが、孔４の壁面には全周にわたって金型合わせ面１４と面一の面を有した構造にしてもよい。図６は、孔４の壁面全周にわたって金型合わせ面１４と面一の面１３及び傾斜１１、面取り１５のついたケース３に側面を支えられた押しボタン２の断面図である。図７は、ケース３の成型時に使用する金型イ１６と金型ロ１７と、その位置によるケース３の仕上がりの断面形状の違いを説明するための図である。 Embodiment 3 FIG.
In the second embodiment described above, the wall surface of the hole 4 is provided with an inclination and chamfering that expands toward the inside of the keyboard unit. However, the wall surface of the hole 4 is flush with the mold matching surface 14 over the entire circumference. A structure having the following surface may be used. FIG. 6 is a cross-sectional view of the push button 2 whose side surface is supported by the case 3 with the mold matching surface 14, the flush surface 13, the inclination 11, and the chamfer 15 over the entire circumference of the wall surface of the hole 4. FIG. 7 is a diagram for explaining a difference in the cross-sectional shape of the finished case 3 depending on the mold 16 and the die 17 used at the time of molding the case 3 and the position thereof.
孔４の壁面には、キーボードユニット内部に向かって押しボタン２の側面との隙間が大きくなるよう傾斜１１が設けられ、更に金型合わせ面１４と面一の面１３が設けられている。このような形状のケース３を成型するためには、図7(c)のように金型イ１６と金型ロ１７を配置することになる。この時、金型イ１６と金型ロ１７が金型合わせ面１４と面一の面１３の範囲内でずれた場合においても図７(d)のように孔４の寸法は変わることはない。しかし、孔４の壁面に金型合わせ面１４と面一の面１３がないと、金型イ１６と金型ロ１７がずれがなくケース３が成型された場合は図７(a)のように正常な寸法の孔４を成型することが出来るが、もし、金型イ１６と金型ロ１７がずれた状態で成形された場合は図７(b)のように孔４の寸法が小さくなってしまう。 The wall surface of the hole 4 is provided with an inclination 11 so that a gap with the side surface of the push button 2 increases toward the inside of the keyboard unit, and further, a surface 13 that is flush with the mold matching surface 14 is provided. In order to mold the case 3 having such a shape, the mold 16 and the mold 17 are arranged as shown in FIG. At this time, even if the die 16 and the die 17 are displaced within the range of the die mating surface 14 and the flush surface 13, the dimension of the hole 4 does not change as shown in FIG. 7 (d). . However, if the mold matching surface 14 and the flush surface 13 do not exist on the wall surface of the hole 4, the mold 3 and the mold die 17 are not displaced and the case 3 is molded as shown in FIG. However, if the die 16 and the die 17 are misaligned, the size of the hole 4 is small as shown in FIG. 7 (b). turn into.
この実施の形態３によれば、実施の形態２と同様に孔の壁面に傾斜及び面取りを設けたことにより、隙間に溜まった異物は除去可能であり、操作者がバリに触れることを防ぐことができるという効果がある。 According to this third embodiment, as in the second embodiment, by providing the wall surface of the hole with an inclination and chamfering, foreign matter accumulated in the gap can be removed and the operator can be prevented from touching the burr. There is an effect that can be.
更に、金型イ１６と金型ロ１７が金型合わせ面と面一の面の範囲内でずれた場合においても、孔の寸法は変わることなく、成形不良を抑制することができるという効果がある。 Further, even when the die 16 and the die 17 are displaced within the same plane as the die mating surface, the hole size does not change and the molding defect can be suppressed. is there.
　この発明に係るキーボードユニットは、劣悪な使用環境において、異物により押しボタンの摺動性が一時的に低下しても容易に摺動性を回復出来、操作性を損なうことなく使用するのに適している。 The keyboard unit according to the present invention can be easily recovered even in a poor operating environment even if the sliding property of the push button temporarily decreases due to foreign matter, and is suitable for use without impairing the operability. ing.
　１　キーボードユニット
　２　押しボタン
　３　ケース
　４　孔
　１２　隙間
　１３　金型合わせ面と面一の面
　１４　金型合わせ面
　１５　面取り DESCRIPTION OF SYMBOLS 1 Keyboard unit 2 Push button 3 Case 4 Hole 12 Gap 13 Mold matching surface and flush surface 14 Mold matching surface 15 Chamfering

Claims (3)

  1. 孔が設けられたケースと、前記孔から突出している押しボタンとを備えたキーボードユニットにおいて、
    前記孔の壁面と前記押しボタンの側面との間の隙間は前記キーボードユニット内部に向かって広がっていき、前記キーボードユニット内部では前記押しボタンの側面が開放されている構造を有する
    ことを特徴とするキーボードユニット。     In a keyboard unit comprising a case provided with a hole and a push button protruding from the hole,
    The gap between the wall surface of the hole and the side surface of the push button is widened toward the inside of the keyboard unit, and the side surface of the push button is open inside the keyboard unit. Keyboard unit.
  2. 前記孔の角のうち、前記ケースの外表面側の角全周にわたって面取りが設けられている
    ことを特徴とする請求項１に記載のキーボードユニット。     2. The keyboard unit according to claim 1, wherein a chamfer is provided over the entire circumference of the corner of the hole on the outer surface side of the case.
  3. 前記ケースに前記孔を成型するために設定する金型合わせ面を基準に、前記面取りと反対側に、前記孔の壁面全周にわたって前記金型合わせ面と面一の面を有する
    ことを特徴とする請求項２に記載のキーボードユニット。     Based on the mold mating surface set for molding the hole in the case, the mold mating surface is flush with the mold mating surface over the entire wall surface of the hole on the opposite side of the chamfering. The keyboard unit according to claim 2.
PCT/JP2015/000014 2015-01-06 2015-01-06 Keyboard unit WO2016110880A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0277823U (en) * 1988-12-02 1990-06-14
JPH09319481A (en) * 1996-05-27 1997-12-12 Nec Corp Key input device
JP2003177857A (en) * 2001-12-11 2003-06-27 Fdk Corp Tactile switch using piezoelectric element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0277823U (en) * 1988-12-02 1990-06-14
JPH09319481A (en) * 1996-05-27 1997-12-12 Nec Corp Key input device
JP2003177857A (en) * 2001-12-11 2003-06-27 Fdk Corp Tactile switch using piezoelectric element

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