JPH0346933B2 - - Google Patents
Info
- Publication number
- JPH0346933B2 JPH0346933B2 JP58119726A JP11972683A JPH0346933B2 JP H0346933 B2 JPH0346933 B2 JP H0346933B2 JP 58119726 A JP58119726 A JP 58119726A JP 11972683 A JP11972683 A JP 11972683A JP H0346933 B2 JPH0346933 B2 JP H0346933B2
- Authority
- JP
- Japan
- Prior art keywords
- contact plate
- switch
- movable contact
- terminal
- push button
- 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.)
- Expired - Lifetime
Links
Landscapes
- Push-Button Switches (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明はミキサー、その他電気機器の電源スイ
ツチとして用いられるスイツチに関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a switch used as a power switch for mixers and other electrical equipment.
従来例の構成とその問題点
一般にこの種のスイツチはたとえば第１図に示
すように押ボタン１を押圧することにより本体２
に設けたスイツチ部（図示せず）を作動させる構
成となつており、ミキサー等においては第２図に
示すようにミキサー本体３の前部に装置し、電源
のオンオフ、および回転速度の切換等を行なうよ
うになつている。Conventional Structure and Problems Generally, in this type of switch, for example, as shown in FIG.
The device is configured to operate a switch part (not shown) provided in the mixer, etc., as shown in Fig. 2, and is installed in the front part of the mixer main body 3 to turn the power on/off, change the rotation speed, etc. People are starting to do this.
ところで、前記スイツチがオンとなつている状
態で、たとえば調理材料が多過ぎる場合にはモー
タに負荷が大きくかかり、過大電流によつてスイ
ツチが焼損するという問題がある。このようなこ
とから過電流ブレーカーを電源回路に別個に設け
るものもあるが、コスト高になり、また図示のよ
うな多段の押ボタンスイツチの場合に各スイツチ
に個々に過電流ブレーカを組み合わせると、コス
トはもとより配線の関係からも好ましくない。 By the way, when the switch is on and there are too many ingredients to be cooked, for example, a large load is placed on the motor, causing a problem that the switch may burn out due to the excessive current. For this reason, some overcurrent breakers are installed separately in the power supply circuit, but this increases the cost, and in the case of a multi-stage pushbutton switch like the one shown in the figure, if an overcurrent breaker is combined with each switch individually, This is unfavorable not only in terms of cost but also in terms of wiring.
発明の目的
本発明は前記従来の問題に留意し、簡単な構成
で過電流によるトラブルをなくしたスイツチを提
供することを目的とするものである。OBJECTS OF THE INVENTION The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to provide a switch which has a simple structure and eliminates troubles caused by overcurrent.
発明の構成
前記目的を達成するため、本発明は電流開閉接
点に流れる電流を検知して動作する過電流ブレー
カー接点を同一のスイツチ本体内に設けたスイツ
チの構成としたものであり、簡単で、かつ、コン
パクトに過電流ブレーカをもつスイツチとするこ
とができるものである。Structure of the Invention In order to achieve the above object, the present invention has a switch structure in which an overcurrent breaker contact that operates by detecting the current flowing through the current switching contact is provided in the same switch body, and is simple and Moreover, the switch can be compactly equipped with an overcurrent breaker.
実施例の説明
以下本発明の一実施例を第３図および第４図に
もとづき説明する。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.
第３図において４はスイツチフランジ、５はス
イツチフレームであり、上端に押ボタン６を有す
る作動杆７を上下動自在に保持している。前記作
動杆７はスプリング８により、上方に付勢されて
おり、一部の一側に係止突部９を有している。１
０は前記作動杆７に直交するように設けられた係
止板であり、前記スイツチフレーム５に左右にス
ライド自在に保持されている。この係止板１０は
前記作動杆７の係止突部９に対応したフツク１１
を有し、フツク１１の上部には傾斜辺１２を設け
てあり、スプリング１２′により一側方向に付勢
されている。前記スイツチフレーム５には作動杆
７の下部に対応したスイツチ本体１３が設けられ
ている。なお、上記構成は一般的な多段の押ボタ
ンスイツチ機構であり、本発明の特徴とするとこ
ろではない。 In FIG. 3, 4 is a switch flange, and 5 is a switch frame, which holds an operating rod 7 having a push button 6 at its upper end so as to be vertically movable. The operating rod 7 is urged upward by a spring 8, and has a locking protrusion 9 on one side of a portion thereof. 1
0 is a locking plate provided perpendicularly to the operating rod 7, and is held by the switch frame 5 so as to be slidable left and right. This locking plate 10 has a hook 11 corresponding to the locking protrusion 9 of the operating rod 7.
The hook 11 has an inclined side 12 at the top thereof, and is biased in one direction by a spring 12'. The switch frame 5 is provided with a switch body 13 corresponding to the lower part of the operating rod 7. Note that the above configuration is a general multi-stage pushbutton switch mechanism, and is not a feature of the present invention.
つぎに本発明の特徴的実施例の構成を第４図に
もとづき説明する。 Next, the configuration of a characteristic embodiment of the present invention will be explained based on FIG. 4.
作動杆７の下部にはこの作動杆７と交叉し、ス
イツチ本体１３方向に延びた作動片１４をけてあ
る。この作動片１４は長孔１５を作動杆７のピン
１６にはめ合わせて前後にスライド自在となつて
おり、後端をばね板１７で押されてスイツチ本体
１３方向に付勢されている。前記スイツチ本体１
３はスイツチボツクス１８と、スイツチボツクス
１８内において図面では垂直に配され、その中央
部を支持端子１９で支持されてシーソ運動自在に
設けられた可動接点板２０と、前記可動接点板２
０の上端端および下端および下端にそれぞれ対向
した第１、第２の固定端子２１，２２と、前記支
持端子１９に導通し、可動接点板２０の上部と上
方の第１の固定端子２１間に位置するバイメタル
接点板２３よりなつている。前記バイメタル接点
板２３は過電流ブレーカー接点をなすものであ
り、遊端に反転バネ２４を結合してある。作動杆
７の下部に設けた作動片１４は前記可動接点板２
０の背面上を摺動するようにしてある。 An operating piece 14 is provided at the lower part of the operating rod 7 and intersects with the operating rod 7 and extends in the direction of the switch body 13. The actuating piece 14 is fitted into a long hole 15 with a pin 16 of the actuating rod 7 so that it can slide back and forth, and its rear end is pushed by a spring plate 17 to urge it toward the switch body 13. Said switch body 1
Reference numeral 3 denotes a switchbox 18, a movable contact plate 20 which is disposed vertically in the switchbox 18 in the drawing, and whose center portion is supported by a support terminal 19 so as to be movable in a see-saw manner, and the movable contact plate 2.
The first and second fixed terminals 21 and 22 facing the upper end and lower end of 0, respectively, and the support terminal 19 are electrically connected, and between the upper part of the movable contact plate 20 and the upper first fixed terminal 21. It consists of a bimetallic contact plate 23 located at the top. The bimetal contact plate 23 serves as an overcurrent breaker contact, and has a reversing spring 24 coupled to its free end. The actuating piece 14 provided at the lower part of the actuating rod 7 is connected to the movable contact plate 2.
It is designed to slide on the back surface of 0.
なお前記押ボタン６、作動杆７、スイツチ部１
３は複数個並設されて多段スイツチを構成してお
り、図示の右側の押ボタン６′はスイツチ解除用
のみとし、左端の押ボタン６″は押圧時のみスイ
ツを閉じるようにしている。 Note that the push button 6, operating rod 7, and switch portion 1
A plurality of switches 3 are arranged in parallel to form a multi-stage switch, and the push button 6' on the right side of the figure is only used to release the switch, and the push button 6'' on the left end closes the switch only when pressed.
上記構成において、ある押ボタン６を押圧して
いない状態においては第４図に示すように作動片
１４は可動接点板２０の支点より上方に位置し、
前記可動接点板２０は下方の第２の固定端子２２
より離れ、したがつてスイツチオフとなつてい
る。また、バイメタル接点板２３は反転バネ２４
の力により第１の固定接点板２１と接触する状態
にセツトされている。 In the above configuration, when a certain push button 6 is not pressed, the actuating piece 14 is located above the fulcrum of the movable contact plate 20, as shown in FIG.
The movable contact plate 20 has a lower second fixed terminal 22
It is further away and therefore a switch off. In addition, the bimetal contact plate 23 has a reversing spring 24
It is set into contact with the first fixed contact plate 21 by the force of .
ここで押ボタン６を押圧すると作動杆７が下動
し、これにともなつて作動片１４も下動する。こ
の作動片１４は可動接点板２０の支点部を越える
とき、ばね板１７に抗して図示右動し、前記支点
を越えると前記バネ板１７の力により可動接点板
２０の下部を押し、この可動接点板２０を下方の
第２の固定端子２２に接触させてスイツチオンと
する。 When the push button 6 is pressed here, the actuating rod 7 moves downward, and the actuating piece 14 also moves downward accordingly. When this actuating piece 14 crosses the fulcrum of the movable contact plate 20, it moves to the right in the figure against the spring plate 17, and when it crosses the fulcrum, it pushes the lower part of the movable contact plate 20 by the force of the spring plate 17. The movable contact plate 20 is brought into contact with the lower second fixed terminal 22 to turn on the switch.
すなわち、第２の固定端子２２−可動接点板２
０−支持端子１９−バイメタル接点板２３−第１
の固定端子２１の通電路を閉成する。 That is, the second fixed terminal 22 - the movable contact plate 2
0-support terminal 19-bimetal contact plate 23-first
The energizing path of the fixed terminal 21 is closed.
ここで、何等かの原因により過電流が流れたと
き、前記バイメタル接点板２３が発熱により曲が
り、反転バネ２４の反転点を越えると、前記反転
バネ２４の反転によりバイメタル接点板２３は上
方の第１の固定端子２１より離れスイツチオフ
し、かつ、このスイツチの状態を維持する。した
がつてスイツチ本体１３は発熱によつて焼損する
ことがない。 Here, when an overcurrent flows due to some reason, the bimetal contact plate 23 bends due to heat generation and exceeds the reversal point of the reversing spring 24, and the bimetal contact plate 23 bends due to the reversal of the reversing spring 24. The switch is turned off by moving away from the fixed terminal 21 of No. 1, and this switch state is maintained. Therefore, the switch body 13 will not be burnt out due to heat generation.
なお、この状態より押ボタン６の作動杆７およ
び作動片１４を上動させれば、可動接点板２０が
反時計方向に変位してバイメタル接点板２３を押
圧する。そして、反転バネ２４の反転点を越える
と、バイメタル接点板２３は再び第４図の状態に
復帰する。このとき、バイメタル接点板２３と可
動接点板２０の押圧部との間に必要以上の力が加
わり上記バイメタル接点板２３が変形しないよう
に〓間を設けてある。 If the actuating rod 7 and actuating piece 14 of the push button 6 are moved upward from this state, the movable contact plate 20 is displaced counterclockwise and presses the bimetal contact plate 23. When the reversing point of the reversing spring 24 is exceeded, the bimetal contact plate 23 returns to the state shown in FIG. 4 again. At this time, a space is provided between the bimetal contact plate 23 and the pressing portion of the movable contact plate 20 to prevent the bimetal contact plate 23 from being deformed due to the application of more force than necessary.
発明の効果
前記実施例の説明より明らかなように、本発明
のスイツチはそのスイツチ本体の電流開閉接点に
過電流が流れたとき、バイメタルよりなる過電流
ブレーカーによつて自動的にスイツチオフし、ス
イツチの焼損事故を防止でき、前記過電流ブレー
カーがスイツチ本体内に一体に組み込まれている
ので配線が複奏しなく、他に別のブレーカーを設
けるものに比し低コストである。また、スイツチ
の電流開閉接点は本来のスイツチ動作ができ、そ
の価値の大きいものである。Effects of the Invention As is clear from the description of the embodiments described above, when an overcurrent flows through the current switching contacts of the switch body, the switch of the present invention automatically switches off using the overcurrent breaker made of bimetal. Since the overcurrent breaker is integrated into the switch body, there is no need for duplicate wiring, and the cost is lower than when a separate breaker is provided. In addition, the current opening/closing contacts of the switch can perform the original switch operation, and are of great value.
第１図は従来の多段の押ボタンスイツチの斜視
図、第２図は同押ボタンスイツチを設けたジユー
サーの斜視図、第３図は本発明の一実施例の押ボ
タンスイツチの平面図、第４図は同断面図であ
る。
６……押ボタン、７……作動杆、１０……係止
板、１３……スイツチ本体、１４……作動片、１
５……長孔、１６……ピン、１７……ばね板、１
８……スイツチボツクス、１９……支持端子、２
０……可動接点板、２１，２２……固定端子、２
３……バイメタル接点板、２４……反転バネ。
FIG. 1 is a perspective view of a conventional multi-stage pushbutton switch, FIG. 2 is a perspective view of a juicer equipped with the same pushbutton switch, and FIG. 3 is a plan view of a pushbutton switch according to an embodiment of the present invention. FIG. 4 is a sectional view of the same. 6... Push button, 7... Operating rod, 10... Locking plate, 13... Switch body, 14... Operating piece, 1
5... Long hole, 16... Pin, 17... Spring plate, 1
8... Switch box, 19... Support terminal, 2
0...Movable contact plate, 21, 22...Fixed terminal, 2
3... Bimetal contact plate, 24... Reversing spring.
Claims (1)
端子に対して接離し、かつ反転バネに連係したバ
イメタル接点板と、このバイメタル接点板の一端
が固定された支持端子と、この支持端子に途中が
支持され、第２の固定端子に対して一端が接離
し、他端が上記バイメタル接点板に対向する揺動
自在な可動接点板と、上記可動接点板を揺動動作
する作動片を設けた押しボタンとを具備し、上記
押しボタンを押動したときは、その作動片が可動
接点板を第２の固定端子に接触させ、押しボタン
を元の状態に戻したときは、その作動片が可動接
点板を第２の固定端子より離反するとともに、バ
イメタル接点板を反転バネの反転点を越えて第１
の固定端子側へ押圧することを特徴とするスイツ
チ。1 A pair of first and second fixed terminals, a bimetal contact plate that moves toward and away from the first fixed terminal and is linked to a reversing spring, a support terminal to which one end of the bimetal contact plate is fixed, and A swingable movable contact plate supported halfway by a support terminal, one end of which moves toward and away from a second fixed terminal, and the other end of which faces the bimetallic contact plate; and an operation that swings the movable contact plate. and a push button provided with a piece, when the push button is pushed, the operating piece brings the movable contact plate into contact with the second fixed terminal, and when the push button is returned to its original state, The actuating piece moves the movable contact plate away from the second fixed terminal, and moves the bimetal contact plate beyond the reversal point of the reversal spring to the first terminal.
A switch characterized by being pressed toward the fixed terminal side of the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58119726A JPS6012622A (en) | 1983-06-30 | 1983-06-30 | Switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58119726A JPS6012622A (en) | 1983-06-30 | 1983-06-30 | Switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6012622A JPS6012622A (en) | 1985-01-23 |
| JPH0346933B2 true JPH0346933B2 (en) | 1991-07-17 |
Family
ID=14768599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58119726A Granted JPS6012622A (en) | 1983-06-30 | 1983-06-30 | Switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6012622A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0740268Y2 (en) * | 1988-04-07 | 1995-09-13 | 株式会社東海理化電機製作所 | Sliding contact switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57187828A (en) * | 1981-05-14 | 1982-11-18 | Matsuo Denki Sangyo Kk | Current breaker |
-
1983
- 1983-06-30 JP JP58119726A patent/JPS6012622A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6012622A (en) | 1985-01-23 |
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