JPH04308620A - Push button switch of drip-proof structure - Google Patents
Push button switch of drip-proof structureInfo
- Publication number
- JPH04308620A JPH04308620A JP3103171A JP10317191A JPH04308620A JP H04308620 A JPH04308620 A JP H04308620A JP 3103171 A JP3103171 A JP 3103171A JP 10317191 A JP10317191 A JP 10317191A JP H04308620 A JPH04308620 A JP H04308620A
- Authority
- JP
- Japan
- Prior art keywords
- drip
- resin film
- key top
- resin
- proof
- 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.)
- Granted
Links
- 229920005989 resin Polymers 0.000 claims abstract description 66
- 239000011347 resin Substances 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 230000035515 penetration Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Push-Button Switches (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は外部の湿気や水分の接点
部への浸入を防止する所謂防滴構造の押釦スイッチに関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-button switch having a so-called drip-proof structure that prevents external moisture and moisture from entering contact portions.
【０００２】0002
【従来技術】近年、電子機器の小型化に伴い、その操作
部に用いる押釦スイッチに対してもその小型化及び薄型
化が要望されている。そしてこれらの電子機器の中には
種々の環境下で使用されるものが多く、特に外部から湿
気や水分が接点部に浸入を遮断する構造、所謂防滴構造
の押釦スイッチが要望されている。2. Description of the Related Art In recent years, with the miniaturization of electronic devices, there has been a demand for push button switches used in the operating sections of such devices to be smaller and thinner. Many of these electronic devices are used in a variety of environments, and there is a particular demand for push button switches with a so-called drip-proof structure, which prevents moisture and moisture from entering the contact portions from the outside.
【０００３】これらの要望に応えるものとして、図１１
に示す構造のものがあった。図１１において、６１，６
２は接点パターンが形成されたシートであり、該シート
６１，６２をスペーサ６３を介在させて上下に配置し、
シート６１の上部に配置したパネル６５と一体形成され
たヒンジ型のキートップ６４を押圧することにより、ク
リックバネ６８を介してシート６１に形成された接点パ
ターン（可動接点）をシート６２に形成された接点パタ
ーン（固定接点）に当接できるようにして押釦スイッチ
を構成している。[0003] In order to meet these demands, FIG.
There was a structure shown in . In FIG. 11, 61,6
2 is a sheet on which a contact pattern is formed, and the sheets 61 and 62 are arranged one above the other with a spacer 63 interposed therebetween.
By pressing a hinge-type key top 64 that is integrally formed with a panel 65 disposed at the top of the sheet 61, the contact pattern (movable contact) formed on the sheet 61 is transferred to the sheet 62 via a click spring 68. The push button switch is configured so that it can come into contact with the fixed contact pattern (fixed contact).
【０００４】上記構造の押釦スイッチにおいて、外部、
主にキートップ側からキャビネット６５内に浸入する湿
気や水分がスイッチ接点部に浸透するのを防止するため
、シート６１とキートップ６４の間に防滴用のシート６
６を配設し、該防滴用のシート６６とキャビネット６５
の間にゴムパッキン６７を介在させ、防滴構造としてい
る。図１２はゴムパッキン６７と防滴用のシート６６の
形状を示す平面図である。[0004] In the push button switch having the above structure, the external
A drip-proof sheet 6 is provided between the sheet 61 and the key top 64 to prevent moisture and moisture from entering the cabinet 65 mainly from the key top side from penetrating into the switch contacts.
6, the drip-proof sheet 66 and the cabinet 65
A rubber packing 67 is interposed between them to provide a drip-proof structure. FIG. 12 is a plan view showing the shapes of the rubber packing 67 and the drip-proof sheet 66.
【０００５】[0005]
【発明が解決しようとする課題】上記構造の押釦スイッ
チは外部から湿気や水分が接点部に浸入するのを防ぐ、
所謂防滴構造となるが、部品点数が多く、所定のキート
ップの動作ストロークを必要とするために薄型化に適せ
ず、更にキートップには所定の長さを有しているヒンジ
機構が付いているため、小型化に適していないばかりか
、外部から浸入する湿気や水分の接点部への浸透を遮断
するという所謂防滴性の点でも完全なものではなかった
。[Problems to be Solved by the Invention] The push button switch having the above structure prevents moisture and moisture from entering the contact portion from the outside.
Although it has a so-called drip-proof structure, it is not suitable for thinning because it has a large number of parts and requires a predetermined operating stroke of the key top, and furthermore, the key top does not have a hinge mechanism with a predetermined length. Because of this, they are not suitable for miniaturization, and are also not perfect in terms of so-called drip-proofing, which blocks moisture and moisture from entering from the outside from penetrating into the contact areas.
【０００６】本発明は上述の点に鑑みてなされたもので
、キートップ側から浸入する湿気や水分の浸透を完全に
遮断することができ、且つ部品点数が少なく小型化薄型
化に適した優れた防滴構造の押釦スイッチを提供するこ
とを目的とする。The present invention has been made in view of the above-mentioned points, and is capable of completely blocking the penetration of moisture and water from the key top side, and has the advantage of having a small number of parts and being suitable for miniaturization and thinning. The object of the present invention is to provide a push button switch with a drip-proof structure.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
本発明は、図１乃至図５に示すように対向して配置され
た固定接点と可動接点と、該可動接点の上に配置され該
可動接点を押圧するキートップを具備する押釦スイッチ
であって、樹脂フィルム１０に該樹脂フィルム１０の所
定範囲を囲むようにループ状の防滴枠１１を樹脂モール
ドして該樹脂フィルム１０と水密状態に形成し、該ルー
プ状の防滴枠内にキートップ１２を樹脂モールドして該
樹脂フィルム１０と水密状態に形成したことを特徴とす
る。[Means for Solving the Problems] In order to solve the above problems, the present invention provides a fixed contact and a movable contact arranged opposite each other as shown in FIGS. This is a push-button switch equipped with a key top that presses a movable contact, and a loop-shaped drip-proof frame 11 is resin-molded on a resin film 10 so as to surround a predetermined area of the resin film 10, so that the switch is watertight with the resin film 10. The key top 12 is resin-molded within the loop-shaped drip-proof frame to be watertight with the resin film 10.
【０００８】[0008]
【作用】上記のように樹脂フィルム１０に該樹脂フィル
ム１０の所定範囲を囲むようにループ状の防滴枠１１を
樹脂モールドして該樹脂フィルム１０と水密状態に形成
しているので、キートップ１２側から浸入する湿気や水
分はこの防滴枠１１で遮断でき、更にキートップ１２も
この防滴枠１１内で且つ樹脂フィルム１０に樹脂モール
ドして水密状態に形成されているから、この湿気や水分
の接点部への浸入は完全に遮断できる。[Function] As described above, since the loop-shaped drip-proof frame 11 is resin-molded on the resin film 10 so as to surround a predetermined area of the resin film 10 and is formed in a watertight state with the resin film 10, the key top Humidity and water entering from the 12 side can be blocked by this drip-proof frame 11, and the key top 12 is also formed in a watertight state by resin molding within this drip-proof frame 11 and resin film 10, so that this moisture can be blocked. It can completely prevent water and water from entering the contact area.
【０００９】[0009]
【実施例】以下本発明の実施例を図面に基づいて説明す
る。図１乃至図５は本発明の防滴構造の押釦スイッチに
用いるキートップと防滴シートと防滴枠の構造を示す図
であり、図１は平面図、図２は図１のＡ−Ａ断面図、図
３は裏面図、図４は図１のＢ−Ｂ断面図、図５（ａ），
（ｂ），（ｃ）はそれぞれキートップの平面，断面，裏
面を示す図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings. 1 to 5 are diagrams showing the structure of a key top, a drip-proof sheet, and a drip-proof frame used in a push button switch with a drip-proof structure according to the present invention. FIG. 1 is a plan view, and FIG. 2 is a line A-A in FIG. 3 is a back view, FIG. 4 is a BB sectional view in FIG. 1, FIG. 5(a),
(b) and (c) are views showing a plane, a cross section, and a back surface of the key top, respectively.
【００１０】図において、１０はポリエステルフィルム
等の樹脂フィルムであり、該樹脂フィルム１０の所定範
囲を囲むようにループ状の防滴枠１１を該樹脂フィルム
１０に水密状態に樹脂モールドして形成している。更に
、この防滴枠１１内にキートップ１２を樹脂フィルム１
０と水密状態に形成している。In the figure, 10 is a resin film such as a polyester film, and a loop-shaped drip-proof frame 11 is formed on the resin film 10 by resin molding in a watertight state so as to surround a predetermined area of the resin film 10. ing. Furthermore, the key top 12 is placed inside the drip-proof frame 11 using a resin film 1.
0 and is formed in a watertight state.
【００１１】防滴枠１１は図４に示すように、樹脂フィ
ルム１０を挟んで上部１１ｂと下部１１ｃが形成されて
おり、上部１１ｂの上面には断面矩形状の長溝１１ａが
形成され、防滴枠１１の下面には基板等に固定するため
の固定部１３が一体に形成されている。ここで、防滴枠
１１はループ状の上部１１ｂとループ状の下部１１ｃで
樹脂フィルム１０を挟んで形成され、且つ上部１１ｂと
下部１１ｃは図７に示す孔２０を通して連結されている
のみであるから、湿気や水分はこの防滴枠１１と樹脂フ
ィルム１０の間を通って浸透することはない。即ち、樹
脂フィルム１０と防滴枠１１の間は湿気や水分が浸透し
ない水密構造になっている。防滴枠１１の材料は熱可塑
性の合成樹脂又は熱硬化性の合成樹脂を用いる。防滴枠
１１の上部１１ｂの長溝１１ａと後述するパネル１４（
図６参照）の突起部１４ａの嵌合を更に水密状態にする
ためには、防滴枠１１の材料を弾性のあるスチレン系エ
ラストマー、ポリエステル系エラストマーにて形成すれ
ばよい。As shown in FIG. 4, the drip-proof frame 11 is formed with an upper part 11b and a lower part 11c with a resin film 10 in between, and a long groove 11a having a rectangular cross section is formed on the upper surface of the upper part 11b. A fixing portion 13 for fixing to a substrate or the like is integrally formed on the lower surface of the frame 11. Here, the drip-proof frame 11 is formed by sandwiching the resin film 10 between a loop-shaped upper part 11b and a loop-shaped lower part 11c, and the upper part 11b and the lower part 11c are only connected through a hole 20 shown in FIG. Therefore, moisture and moisture will not penetrate between the drip-proof frame 11 and the resin film 10. That is, the space between the resin film 10 and the drip-proof frame 11 has a watertight structure that prevents moisture and water from penetrating therebetween. The drip-proof frame 11 is made of thermoplastic synthetic resin or thermosetting synthetic resin. The long groove 11a of the upper part 11b of the drip-proof frame 11 and the panel 14 (described later)
In order to make the fitting of the protrusion 14a (see FIG. 6) more watertight, the drip-proof frame 11 may be made of an elastic styrene elastomer or polyester elastomer.
【００１２】キートップ１２は図５に示すように、樹脂
フィルム１０を挟んで上部にキートップ部１２ｂと下部
に円環状の押え部１２ｃが形成され、更に下面にはスイ
ッチの可動接点を押圧するための突起部１２ａが形成さ
れている。キートップ１２の材料には熱可塑性樹脂のポ
リカーボネイト樹脂又はアクリル樹脂を使用する。ここ
で、キートップ１２はキートップ部１２ｂと円環状の押
え部１２ｃとで樹脂フィルム１０を挟み、且つキートッ
プ部１２ｂと円環状の押え部１２ｃ及び突起部１２ａは
図７及び図８に示す孔２１ａ，２１ｂを通して連結され
ているのみであるから、湿気や水分はこのキートップ１
２と樹脂フィルム１０の間を通って浸透することはない
。即ち、樹脂フィルム１０とキートップ１２の間は湿気
や水分が浸透しない水密構造になっている。As shown in FIG. 5, the key top 12 is formed with a key top part 12b at the upper part and an annular pressing part 12c at the lower part with the resin film 10 in between, and further has a lower surface for pressing the movable contact of the switch. A protrusion 12a is formed for this purpose. The key top 12 is made of thermoplastic polycarbonate resin or acrylic resin. Here, in the key top 12, the resin film 10 is sandwiched between the key top part 12b and the annular holding part 12c, and the key top part 12b, the annular holding part 12c, and the protruding part 12a are shown in FIGS. 7 and 8. Since they are only connected through the holes 21a and 21b, moisture and water will not be absorbed into this key top 1.
2 and the resin film 10. That is, the space between the resin film 10 and the key top 12 has a watertight structure that prevents moisture from penetrating.
【００１３】図６は上記のように、樹脂フィルム１０に
防滴枠１１とキートップ１２を樹脂モールドで一体的に
形成したスイッチ操作体１を用いた押釦スイッチの構造
例を示す図である。同図において、１６，１７はそれぞ
れ可動接点パターン１６ａ，固定接点パターン１７ａが
形成されたシートであり、該シート１６，１７はその接
点パターン１６ａ，１７ａを対向させ且つ間にスペーサ
１８を介在させて重ね合わせ前記防滴枠１１の下部に固
定されている。また、シート１６の接点パターン１６ａ
が位置する上面にはクリックバネ１９が配設されており
、その上部にキートップ１２の突起部１２ａが位置して
いる。FIG. 6 is a diagram showing an example of the structure of a push button switch using the switch operating body 1 in which the drip-proof frame 11 and the key top 12 are integrally formed on the resin film 10 by resin molding, as described above. In the figure, 16 and 17 are sheets on which a movable contact pattern 16a and a fixed contact pattern 17a are formed, respectively. They are fixed to the lower part of the overlapping drip-proof frame 11. In addition, the contact pattern 16a of the sheet 16
A click spring 19 is disposed on the upper surface where is located, and the protrusion 12a of the key top 12 is located above the click spring 19.
【００１４】上記スイッチ操作体１とシート１６，１７
の組立体は筐体１５内に収容されている。筐体１５の上
部にはパネル１４が配設されている。該パネル１４には
長尺の突起１４ａが設けられており、該長尺突起１４ａ
は前記防滴枠の長溝１１ａに水密状態に嵌合している。The switch operating body 1 and the seats 16, 17
The assembly is housed in a housing 15. A panel 14 is arranged on the top of the housing 15. The panel 14 is provided with an elongated protrusion 14a, and the elongated protrusion 14a
is fitted in the long groove 11a of the drip-proof frame in a watertight manner.
【００１５】押釦スイッチを上記構造とすることにより
、キートップ１２とパネル１４の間隙から浸透する湿気
や水分は、キートップ１２及び防滴枠１１が樹脂フィル
ム１０に水密状態で固定されているから、それ以上の浸
透することはない。また、防滴枠１１とパネル１４は、
上記のように長溝１１ａと長尺突起１４ａは水密状態に
嵌合しているから、この防滴枠１１とパネル１４の間を
通って水分は浸透しない。従って、この押釦スイッチは
防湿防水に優れた構造のものとなる。[0015] By having the push button switch with the above structure, moisture and moisture that permeate through the gap between the key top 12 and the panel 14 can be prevented because the key top 12 and the drip-proof frame 11 are fixed to the resin film 10 in a watertight state. , it will not penetrate any further. In addition, the drip-proof frame 11 and the panel 14 are
As described above, since the long groove 11a and the long protrusion 14a are fitted in a watertight manner, moisture does not penetrate between the drip-proof frame 11 and the panel 14. Therefore, this push button switch has an excellent moisture-proof and waterproof structure.
【００１６】次に、樹脂フィルム１０に防滴枠１１とキ
ートップを樹脂モールドで一体的に形成したスイッチ操
作体１の製造方法について説明する。図７は樹脂フィル
ム１０の外形を示す平面図である。図示するように、樹
脂フィルム１０は長方形状であり、防滴枠１１を形成す
る部分には溶融樹脂が通る孔２０が所定の間隔で多数個
設けられ、さらにキートップ１２を形成する部分は溶融
樹脂が通る孔２１が所定の間隔で多数個設けられている
。このキートップ１２を形成するための孔２１は、図８
に示すように円環状に多数の小さい孔２１ａと１個の大
きい孔２１ｂが設けられている。それぞれ小さい孔２１
ａはキートップ１２のリブ１２ｄに、大きな孔２１ｂは
キートップ１２の突起部１２ａに位置している。Next, a method of manufacturing the switch operating body 1 in which the drip-proof frame 11 and key tops are integrally formed on the resin film 10 by resin molding will be described. FIG. 7 is a plan view showing the outer shape of the resin film 10. As shown in the figure, the resin film 10 has a rectangular shape, and the portion forming the drip-proof frame 11 is provided with a number of holes 20 at predetermined intervals through which the molten resin passes, and the portion forming the key top 12 is formed by melting the resin film 10. A large number of holes 21 through which the resin passes are provided at predetermined intervals. The hole 21 for forming this key top 12 is shown in FIG.
As shown in the figure, a large number of small holes 21a and one large hole 21b are provided in an annular shape. Each small hole 21
a is located in the rib 12d of the key top 12, and the large hole 21b is located in the protrusion 12a of the key top 12.
【００１７】キートップ１２の形成は、図９に示すよう
にキートップ部１２ｂ（図５参照）と同形状のキャビテ
ィ（空隙）１１０を有する上金型１０５と円環状の押え
部１２ｃ（図５参照）と同形状のキャビティ１１１を有
する下金型１０６とで樹脂フィルム１０を挟み、キート
ップ１２の突起部１２ａの上部に位置する個所に設けら
れたピンゲート１０７から溶融樹脂を注入することによ
り、溶融樹脂は上金型１０５のキャビティ１１０内に流
入すると共に樹脂フィルム１０の孔２１ｂ，２１ａを通
って下金型１０６のハャビティ１１１内に流入する。こ
の溶融樹脂の硬化によってキートップ１２が形成される
。The key top 12 is formed, as shown in FIG. 9, by using an upper mold 105 having a cavity 110 having the same shape as the key top portion 12b (see FIG. 5) and an annular holding portion 12c (see FIG. 5). By sandwiching the resin film 10 between a lower mold 106 having a cavity 111 having the same shape as the key top 12 (see ), and injecting molten resin from a pin gate 107 provided at a location above the protrusion 12a of the key top 12, The molten resin flows into the cavity 110 of the upper mold 105 and also flows into the cavity 111 of the lower mold 106 through the holes 21b and 21a of the resin film 10. The key top 12 is formed by curing this molten resin.
【００１８】防滴枠１１の形成は、図１０に示すように
枠上部１１ｂ（図４参照）と同形状の間隙１１２を有す
る上型１０１と枠下部１１ｃ（図４参照）と同形状の間
隙１１３を有する下型１０２とで樹脂フィルム１０を挟
み、ピンゲート１０３から溶融樹脂を注入することによ
り、該溶融樹脂は樹脂溜２２を通って上型１０１のキャ
ビティ１１２内へ流入し、更に樹脂フィルム１０の孔２
０を通り下型１０２のキャビティ１１３内に流入する。
樹脂が硬化した状態で樹脂フィルム１０の所定範囲を囲
むように防滴枠１１が形成される。The drip-proof frame 11 is formed by forming an upper die 101 having a gap 112 having the same shape as the frame upper part 11b (see FIG. 4) and a gap having the same shape as the frame lower part 11c (see FIG. 4), as shown in FIG. By sandwiching the resin film 10 between the lower mold 102 having a mold 113 and injecting molten resin from the pin gate 103, the molten resin flows into the cavity 112 of the upper mold 101 through the resin reservoir 22, and further the resin film 10 hole 2
0 and flows into the cavity 113 of the lower mold 102. A drip-proof frame 11 is formed so as to surround a predetermined area of the resin film 10 in a state where the resin is cured.
【００１９】なお、上記防滴枠１１の形状は一例であり
、これに限定されるものではない。例えば、防滴枠１１
を弾性のあるエラストマー製とすれば、パネル１４の面
が平坦で防滴枠１１の面が半円筒状の曲面で、両者を圧
接する構造としてもよい。要は樹脂脂フィルムに該樹脂
フィルムの所定範囲を囲むようにループ状の防滴枠を樹
脂モールドして該樹脂フィルムと水密状態に形成すれば
よい。また、キートップの形状も上記例に限定されるも
のではなく、要は樹脂モールドして樹脂フィルムと水密
状態に形成したものであればよい。The shape of the drip-proof frame 11 is merely an example, and the shape is not limited to this. For example, the drip-proof frame 11
If it is made of an elastic elastomer, the panel 14 may have a flat surface, the drip-proof frame 11 may have a semi-cylindrical curved surface, and the two may be pressed into contact with each other. In short, a loop-shaped drip-proof frame may be resin-molded onto the resin film so as to surround a predetermined area of the resin film to form a watertight state with the resin film. Further, the shape of the key top is not limited to the above example, and any key top may be formed by resin molding to be watertight with the resin film.
【００２０】[0020]
【発明の効果】以上説明したように本発明によれば、樹
脂フィルムの所定範囲を囲むようにループ状の防滴枠を
樹脂モールドして該樹脂フィルムと水密状態に形成し、
更に該防滴枠内にキートップを水密状態で形成するので
、キートップ側から浸入する湿気や水分のスイッチ内部
への浸透を確実に遮断できるという防滴に優れた押釦ス
イッチを提供できる。As explained above, according to the present invention, a loop-shaped drip-proof frame is resin-molded so as to surround a predetermined area of a resin film, and is formed in a watertight state with the resin film.
Furthermore, since the key top is formed in the drip-proof frame in a water-tight state, it is possible to provide a push button switch with excellent drip-proof properties that can reliably block moisture or water from penetrating from the key top side into the inside of the switch.
【図面の簡単な説明】[Brief explanation of drawings]
【図１】本発明の防滴構造の押釦スイッチに用いる防滴
シートとキートップ及び防滴枠の構造を示す平面図であ
る。FIG. 1 is a plan view showing the structure of a drip-proof sheet, a key top, and a drip-proof frame used in a push button switch with a drip-proof structure according to the present invention.
【図２】図１のＡ−Ａ断面図である。FIG. 2 is a sectional view taken along line AA in FIG. 1;
【図３】防滴シートとキートップ及び防滴枠の構造を示
す裏面図である。FIG. 3 is a back view showing the structure of a drip-proof sheet, key tops, and drip-proof frame.
【図４】図１のＢ−Ｂ断面図である。FIG. 4 is a sectional view taken along line BB in FIG. 1;
【図５】同図（ａ），（ｂ），（ｃ）はそれぞれキート
ップの平面図，断面（Ａ−Ａ断面）図，裏面図である。5A, 5B, and 5C are a plan view, a cross-sectional view (A-A cross-section), and a back view of the key top, respectively; FIG.
【図６】本発明の防滴構造の押釦スイッチの構造例を示
す図である。FIG. 6 is a diagram showing a structural example of a push button switch having a drip-proof structure according to the present invention.
【図７】防滴用樹脂フィルムの平面図である。FIG. 7 is a plan view of a drip-proof resin film.
【図８】キートップ形成部の樹脂フィルムの孔形状を示
す図である。FIG. 8 is a diagram showing the shape of holes in the resin film of the key top forming portion.
【図９】キートップの樹脂モールドを説明するための図
である。FIG. 9 is a diagram for explaining a resin mold of a key top.
【図１０】防滴枠の樹脂モールドを説明するための図で
ある。FIG. 10 is a diagram for explaining a resin mold of the drip-proof frame.
【図１１】従来の防滴構造の押釦スイッチの構造例を示
す図である。FIG. 11 is a diagram showing a structural example of a conventional push button switch having a drip-proof structure.
【図１２】従来のゴムパッキンと防滴用のシートの形状
を示す平面図である。FIG. 12 is a plan view showing the shapes of a conventional rubber packing and a drip-proof sheet.
１ スイッチ操作体１０
樹脂フィルム
１１ 防滴枠
１２ キートップ
１３ 固定部材
１４ パネル
１５ 筐体
１６ シート
１７ シート
１８ スペーサ
１９ クリックバネ1 Switch operating body 10
Resin film 11 Drip-proof frame 12 Key top 13 Fixing member 14 Panel 15 Housing 16 Sheet 17 Sheet 18 Spacer 19 Click spring
Claims (1)
点と、該可動接点の上に配置され該可動接点を押圧する
キートップを具備する押釦スイッチであって、樹脂フィ
ルムに該樹脂フィルムの所定範囲を囲むようにループ状
の防滴枠を樹脂モールドして該樹脂フィルムと水密状態
に形成し、該ループ状の防滴枠内に前記キートップを樹
脂モールドして該樹脂フィルムと水密状態に形成したこ
とを特徴とする押釦スイッチ。1. A push button switch comprising a fixed contact and a movable contact disposed facing each other, and a key top disposed above the movable contact to press the movable contact, the push button switch having a resin film covered with the resin film. A loop-shaped drip-proof frame is resin-molded to surround a predetermined area to form a water-tight state with the resin film, and the key top is resin-molded within the loop-shaped drip-proof frame to form a water-tight state with the resin film. A push button switch characterized in that it is formed into a.
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3103171A JP2727261B2 (en) | 1991-04-08 | 1991-04-08 | Drip-proof push button switch |
| EP91202656A EP0483898B1 (en) | 1990-10-30 | 1991-10-14 | Push-button switch and keytop |
| EP95201654A EP0674330B1 (en) | 1990-10-30 | 1991-10-14 | Keytop and method of manufacturing the keytop |
| DE69133106T DE69133106T2 (en) | 1990-10-30 | 1991-10-14 | Button and method of making the button |
| EP95201653A EP0677858A3 (en) | 1990-10-30 | 1991-10-14 | Keytop sheet for use in a pushbutton switch. |
| EP02076213A EP1233436B1 (en) | 1990-10-30 | 1991-10-14 | Method of manufacturing a keytop |
| DE69118314T DE69118314T2 (en) | 1990-10-30 | 1991-10-14 | Key switch and key |
| DE69133364T DE69133364T2 (en) | 1990-10-30 | 1991-10-14 | Method of making a button |
| US07/784,000 US5280146A (en) | 1990-10-30 | 1991-10-29 | Push-button switch, keytop, and method of manufacturing the keytop |
| KR1019910019139A KR950010194B1 (en) | 1990-10-30 | 1991-10-30 | Push-button switch key top and method of manufacturing the keytop |
| US08/046,843 US5362934A (en) | 1990-10-30 | 1993-04-14 | Push-button switch, keytop, and method of manufacturing the keytop |
| US08/135,428 US5362932A (en) | 1990-10-30 | 1993-10-12 | Push-button switch, keytop, and method of manufacturing the keytop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3103171A JP2727261B2 (en) | 1991-04-08 | 1991-04-08 | Drip-proof push button switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04308620A true JPH04308620A (en) | 1992-10-30 |
| JP2727261B2 JP2727261B2 (en) | 1998-03-11 |
Family
ID=14347063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3103171A Expired - Fee Related JP2727261B2 (en) | 1990-10-30 | 1991-04-08 | Drip-proof push button switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2727261B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8294357B2 (en) | 2010-05-12 | 2012-10-23 | Konica Minolta Opto, Inc. | Wavelength conversion element and light emitting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58100009A (en) * | 1981-12-11 | 1983-06-14 | Tsubakimoto Chain Co | Conveyor chain with protective bushing on chain coupling pin |
-
1991
- 1991-04-08 JP JP3103171A patent/JP2727261B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58100009A (en) * | 1981-12-11 | 1983-06-14 | Tsubakimoto Chain Co | Conveyor chain with protective bushing on chain coupling pin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8294357B2 (en) | 2010-05-12 | 2012-10-23 | Konica Minolta Opto, Inc. | Wavelength conversion element and light emitting device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2727261B2 (en) | 1998-03-11 |
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