JP4353255B2 - Push switch and manufacturing method thereof - Google Patents

Push switch and manufacturing method thereof Download PDF

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JP4353255B2
JP4353255B2 JP2007034818A JP2007034818A JP4353255B2 JP 4353255 B2 JP4353255 B2 JP 4353255B2 JP 2007034818 A JP2007034818 A JP 2007034818A JP 2007034818 A JP2007034818 A JP 2007034818A JP 4353255 B2 JP4353255 B2 JP 4353255B2
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contact
fixed
operation shaft
case
push switch
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JP2007157737A (en
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孝 牧野
芳彦 神村
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Description

本発明は、自動車のブレーキペダル操作軸のストップランプの点消灯制御等に用いられる、車両用のプッシュスイッチ及びその製造方法に関するものである。   The present invention relates to a push switch for a vehicle used for controlling turning on / off of a stop lamp of a brake pedal operating shaft of an automobile and a manufacturing method thereof.

従来、自動車のブレーキペダルを操作した際の主な制御としては、ブレーキペダルが踏まれたことを知らせるためのストップランプの点灯や、一定速度で自動走行を行うオートドライブ機能の解除等があるが、近年、これらの制御を別々のスイッチを用いて行うものの他、一つのスイッチによって複数の機能の制御を行うものが増えている。   Conventionally, main control when operating a brake pedal of an automobile includes turning on a stop lamp for notifying that the brake pedal has been depressed, and releasing an auto drive function for automatically driving at a constant speed. In recent years, in addition to those that perform these controls using separate switches, there are an increasing number of those that control a plurality of functions with a single switch.

このような従来のプッシュスイッチについて、図８〜図１１を用いて説明する。   Such a conventional push switch will be described with reference to FIGS.

図８は従来のプッシュスイッチの断面図、図９は同分解斜視図であり、同図において、１は上面開口で内底面を有する略筒状の絶縁樹脂製のケースで、この内底面には、左内側壁に沿って上方に突出した導電金属板製の一対の固定接点２と、同じく上方に突出し上端がＬ字状に折曲した導電金属板製の一対の固定接点３が、溶着やカシメ等によって固定されて植設されている。   FIG. 8 is a cross-sectional view of a conventional push switch, and FIG. 9 is an exploded perspective view. In FIG. 8, reference numeral 1 denotes a substantially cylindrical insulating resin case having an upper surface opening and an inner bottom surface. A pair of fixed contacts 2 made of a conductive metal plate protruding upward along the left inner wall, and a pair of fixed contacts 3 made of a conductive metal plate protruding upward and bent in an L-shape. It is fixed and planted by caulking etc.

そして、４は導電金属板製の可動接点で、この下面中央とケース１の内底面の間にやや撓んだ状態で装着されたコイル状の接圧バネ５によって、可動接点４の両端が固定接点３の折曲部下面に弾接し、可動接点４を介して一対の固定接点３が電気的に接続されている。   Reference numeral 4 denotes a movable contact made of a conductive metal plate, and both ends of the movable contact 4 are fixed by a coiled contact pressure spring 5 mounted in a slightly bent state between the center of the lower surface and the inner bottom surface of the case 1. The pair of fixed contacts 3 are electrically connected to each other through the movable contact 4 while being in elastic contact with the lower surface of the bent portion of the contact 3.

また、６はケース１内に上下動可能に収納された操作軸、７は弾性金属薄板製の接触片で、接触片７一端の固定部７Ａはリベット８によって操作軸６側面に保持固定され、他端の接点部７Ｂは中間のアーム部７Ｃがやや撓んだ状態でケース１の左内側壁に弾接している。   Reference numeral 6 denotes an operation shaft housed in the case 1 so as to be movable up and down, 7 is a contact piece made of an elastic metal thin plate, and a fixing portion 7A at one end of the contact piece 7 is held and fixed to the side surface of the operation shaft 6 by a rivet 8. The contact 7B at the other end is in elastic contact with the left inner wall of the case 1 with the middle arm 7C slightly bent.

そして、操作軸６下面とケース１の内底面の間には、やや撓んだ状態のコイル状の操作バネ９が装着されて操作軸６を上方へ付勢すると共に、ケース１の開口部をカバー１０が覆い、カバー１０には外周にネジ山が形成された軸受部１０Ａが設けられ、この中央の貫通孔１０Ｂ内を操作軸６が挿通して、プッシュスイッチ１１が構成されている。   A slightly bent coil-shaped operation spring 9 is mounted between the lower surface of the operation shaft 6 and the inner bottom surface of the case 1 to urge the operation shaft 6 upward and to open the opening of the case 1. The cover 10 is covered, and the cover 10 is provided with a bearing portion 10A having a screw thread formed on the outer periphery. The operation shaft 6 is inserted through the central through hole 10B to constitute the push switch 11.

このような構成のプッシュスイッチは、先ず、ケース１の内底面に一対の固定接点２と固定接点３を溶着やカシメ等によって固定した後、可動接点４とやや撓めた接圧バネ５をケース１内底面と固定接点３の間に挿入し、可動接点４の両端を一対の固定接点３の折曲部下面に弾接させる。   In the push switch having such a configuration, first, a pair of fixed contact 2 and fixed contact 3 are fixed to the inner bottom surface of the case 1 by welding, caulking or the like, and then the movable contact 4 and the contact pressure spring 5 slightly bent are attached to the case. 1 is inserted between the inner bottom surface and the fixed contact 3, and both ends of the movable contact 4 are brought into elastic contact with the lower surfaces of the bent portions of the pair of fixed contacts 3.

次に、リベット８によって側面に接触片７を保持固定した操作軸６を、ケース１内底面との間に装着した操作バネ９を撓めながらケース１内に収納し、貫通孔１０Ｂ内に操作軸６を挿通させたカバー１０によってケース１の開口部を覆って、プッシュスイッチ１１が完成する。   Next, the operating shaft 6 having the contact piece 7 held and fixed on the side surface by the rivet 8 is housed in the case 1 while bending the operating spring 9 mounted between the bottom surface of the case 1 and operated in the through hole 10B. The push switch 11 is completed by covering the opening of the case 1 with the cover 10 through which the shaft 6 is inserted.

以上の構成において、カバー１０の貫通孔１０Ｂから突出した操作軸６上面を押圧操作すると、図１０の断面図に示すように、操作軸６が操作バネ９を撓めながら下方へ移動し、この側面に保持された接触片７の接点部７Ｂがケース１の左内側壁を弾接摺動して、固定接点２に接触し、一対の固定接点２の接触片７を介した電気的接続が行われる。   In the above configuration, when the upper surface of the operation shaft 6 protruding from the through hole 10B of the cover 10 is pressed, the operation shaft 6 moves downward while bending the operation spring 9 as shown in the cross-sectional view of FIG. The contact portion 7B of the contact piece 7 held on the side surface slides elastically on the left inner wall of the case 1 to contact the fixed contact 2, and electrical connection through the contact piece 7 of the pair of fixed contacts 2 is performed. Done.

また、同時に、操作軸６の下面が可動接点４の上面中央を押圧して、接圧バネ５が撓められ、可動接点４の両端が一対の固定接点３の折曲部下面から離れて、一対の固定接点３が電気的に遮断されるように構成されている。   At the same time, the lower surface of the operating shaft 6 presses the center of the upper surface of the movable contact 4, the contact pressure spring 5 is bent, and both ends of the movable contact 4 are separated from the lower surfaces of the bent portions of the pair of fixed contacts 3. The pair of fixed contacts 3 are configured to be electrically disconnected.

そして、以上のような構成のプッシュスイッチ１１は、図１１の側面図に示すように、ブレーキペダル１２と一体に形成され上端の支持部１２Ａが車体に回転可能に保持されたアングル１２Ｂに、操作軸６が押圧された状態で、止め具１３によってカバー１０の軸受部１０Ａ外周が車体に装着される。   Then, as shown in the side view of FIG. 11, the push switch 11 having the above-described configuration is operated at an angle 12B formed integrally with the brake pedal 12 and having an upper end support portion 12A rotatably held on the vehicle body. With the shaft 6 pressed, the outer periphery of the bearing portion 10A of the cover 10 is attached to the vehicle body by the stopper 13.

また、プッシュスイッチ１１にはコネクタ１４が取付けられ、固定接点２は電源１５を介して、走行速度を一定に保つオートドライブ機能等を制御する電子回路１６に、固定接点３は同じく自動車のストップランプ回路１７に各々接続される。   Further, a connector 14 is attached to the push switch 11, the fixed contact 2 is connected to an electronic circuit 16 for controlling an auto drive function or the like for keeping the traveling speed constant via a power source 15, and the fixed contact 3 is also a stop lamp of an automobile. Each is connected to a circuit 17.

このようにプッシュスイッチ１１の操作軸６が押圧された状態、つまり自動車が走行状態の場合には、図１０に示したように、固定接点２が接触片７を介して電気的に接続されているため、これに接続された電子回路１６のオートドライブ機能は接続状態となり、遮断された固定接点３に接続されたストップランプ回路１７は消灯状態となっている。   Thus, when the operating shaft 6 of the push switch 11 is pressed, that is, when the automobile is in a running state, the fixed contact 2 is electrically connected via the contact piece 7 as shown in FIG. Therefore, the auto drive function of the electronic circuit 16 connected thereto is in a connected state, and the stop lamp circuit 17 connected to the blocked fixed contact 3 is in an extinguished state.

そして、図１１に破線で示したようにブレーキペダル１２を踏むと、アングル１２Ｂが支持部１２Ａを支点として回転し、プッシュスイッチ１１の操作軸６から離れて、操作軸６が接圧バネ５や操作バネ９の付勢力によって図８に示した状態に戻るため、接触片７が固定接点２から離れ、電子回路１６のオートドライブ機能が解除される。   When the brake pedal 12 is stepped on as shown by a broken line in FIG. 11, the angle 12B rotates with the support portion 12A as a fulcrum, moves away from the operation shaft 6 of the push switch 11, and the operation shaft 6 moves to the contact spring 5 or Since the urging force of the operating spring 9 returns to the state shown in FIG. 8, the contact piece 7 is separated from the fixed contact 2, and the auto drive function of the electronic circuit 16 is released.

また、同時に、接圧バネ５の付勢力によって、可動接点４の両端が一対の固定接点３の折曲部下面に接触するため、ストップランプ回路１７が点灯して、ブレーキペダル１２が踏まれたことを知らせるように構成されているものであった。   At the same time, both ends of the movable contact 4 are brought into contact with the lower surfaces of the bent portions of the pair of fixed contacts 3 by the biasing force of the contact pressure spring 5, so that the stop lamp circuit 17 is turned on and the brake pedal 12 is stepped on. It was designed to let you know.

しかしながら上記従来のプッシュスイッチにおいては、リベット８によって操作軸６側面に接触片７を保持固定する際や、この接触片７を保持した操作軸６をケース１内に収納して組立てる際に、弾性金属薄板製の接触片７に変形が生じ易く接点の接触が不安定なものになりがちであると共に、スイッチの組立てにも時間を要するという課題があった。   However, in the above-described conventional push switch, when the contact piece 7 is held and fixed on the side surface of the operation shaft 6 by the rivet 8, or when the operation shaft 6 holding the contact piece 7 is housed in the case 1 and assembled, There is a problem that the contact piece 7 made of a thin metal plate is liable to be deformed and the contact of the contact tends to be unstable, and it takes time to assemble the switch.

本発明は、このような従来の課題を解決するものであり、接点の安定した接触が得られ、組立てが容易で安価なプッシュスイッチ及びその製造方法を提供することを目的とする。   The present invention solves such a conventional problem, and an object thereof is to provide a push switch that can achieve stable contact, is easy to assemble, and is inexpensive, and a manufacturing method thereof.

上記目的を達成するために本発明は、以下の構成を有するものである。   In order to achieve the above object, the present invention has the following configuration.

本発明の請求項１に記載の発明は、中央に操作軸が挿通する貫通孔を有しケースの開口部を覆うカバー下面に、下方に突出し内側面が固定接点の接触面と同一面の一対のリブを設け、このリブ内側面に、操作軸側面に一端の固定部が保持され、中間のアーム部がやや撓んだ状態の接触片の接点部を弾接させてプッシュスイッチを構成したものであり、接触片の接点部がカバー下面のリブ内側面に弾接し、カバーに操作軸を仮保持した状態でスイッチの組立てが行えるため、接触片を保持した操作軸とケースを組立てる際に接触片が変形しにくくなり、接点の安定した接触が得られ、容易に組立ての自動化が図れる、安価なプッシュスイッチが得られるという作用を有する。   The invention according to claim 1 of the present invention has a through hole through which the operation shaft is inserted at the center, a lower surface of the cover that covers the opening of the case, and a pair that protrudes downward and whose inner surface is flush with the contact surface of the fixed contact. A push switch is configured by elastically contacting the contact part of the contact piece with the intermediate arm part slightly bent, with the fixed part at one end held on the side surface of the operation shaft, and the inner side surface of the rib. The contact part of the contact piece elastically contacts the rib inner surface of the lower surface of the cover, and the switch can be assembled with the operation shaft temporarily held on the cover, so contact is made when assembling the operation shaft holding the contact piece and the case. The piece is less likely to be deformed, stable contact can be obtained, and an inexpensive push switch that can be easily automated is obtained.

請求項２に記載の発明は、請求項１記載の発明において、カバー下面の下方に突出したリブ下端を、固定接点の上端に当接させたものであり、固定接点の溶着やカシメ等によるケースへの保持に加え、固定接点上端にカバーのリブ下端が当接しているため、ケース外方に突出した固定接点下端に外力が加わった場合にも、より強固で確実に固定接点の保持を行うことができるという作用を有する。   The invention according to claim 2 is the case of the invention according to claim 1, wherein the lower end of the rib projecting downward from the lower surface of the cover is brought into contact with the upper end of the fixed contact. Because the lower end of the rib of the cover is in contact with the upper end of the fixed contact, even when an external force is applied to the lower end of the fixed contact protruding outward from the case, the fixed contact is held more firmly and securely. It has the effect of being able to.

請求項３に記載の発明は、操作軸に接触片を保持した後、カバー下面の下方に突出したリブ内側面に接触片の接点部を弾接させて、カバーに操作軸を仮保持し、これと内底面に固定接点が植設されたケースを組合わせる請求項１記載のプッシュスイッチの製造方法としたものであり、カバーに操作軸を仮保持した状態でスイッチの組立てが行えるため、接点の安定した接触が得られ、容易に組立ての自動化が図れるプッシュスイッチを実現することができるという作用を有する。   In the invention according to claim 3, after holding the contact piece on the operation shaft, the contact portion of the contact piece is elastically contacted to the inner surface of the rib protruding downward from the lower surface of the cover, and the operation shaft is temporarily held on the cover. 2. The push switch manufacturing method according to claim 1, wherein this is combined with a case in which a fixed contact is planted on the inner bottom surface, and the switch can be assembled with the operating shaft temporarily held on the cover. Therefore, it is possible to realize a push switch that can achieve stable contact and can be easily automated.

以上のように本発明によれば、接点の安定した接触が得られ、組立てが容易で安価なプッシュスイッチ及びその製造方法を得ることができるという有利な効果が得られる。   As described above, according to the present invention, it is possible to obtain an advantageous effect that a stable contact of contacts can be obtained and a push switch that is easy to assemble and inexpensive and a manufacturing method thereof can be obtained.

本発明の実施の形態について、図１〜図７を用いて説明する。   Embodiments of the present invention will be described with reference to FIGS.

なお、従来の技術の項で説明した構成と同一構成の部分には同一符号を付して、詳細な説明を省略する。   In addition, the same code | symbol is attached | subjected to the part of the structure same as the structure demonstrated in the term of the prior art, and detailed description is abbreviate | omitted.

（実施の形態１）
図１は本発明の一実施の形態によるプッシュスイッチの断面図、図２は同分解斜視図であり、同図において、２１は上面開口で内底面を有する略筒状の絶縁樹脂製のケースで、この内底面には、左内側壁に沿って上方に突出した導電金属板製の一対の固定接点２２と、同じく上方に突出し上端がＬ字状に折曲した導電金属板製の一対の固定接点３が、溶着やカシメ等によって固定されて植設されている。 (Embodiment 1)
FIG. 1 is a cross-sectional view of a push switch according to an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, and 21 is a case made of a substantially cylindrical insulating resin having an upper surface opening and an inner bottom surface. A pair of fixed contact 22 made of a conductive metal plate projecting upward along the left inner wall is formed on the inner bottom surface, and a pair of fixed contacts made of a conductive metal plate protruding upward and bent in an L-shape. The contact 3 is fixed and planted by welding or caulking.

そして、４は導電金属板製の可動接点で、この下面中央とケース２１の内底面の間にやや撓んだ状態で装着されたコイル状の接圧バネ５によって、可動接点４の両端が一対の固定接点３の折曲部下面に弾接し、一対の固定接点３が可動接点４を介して電気的に接続されている。   Reference numeral 4 denotes a movable contact made of a conductive metal plate. A pair of both ends of the movable contact 4 is paired by a coil-shaped contact spring 5 mounted in a slightly bent state between the center of the lower surface and the inner bottom surface of the case 21. The fixed contact 3 is elastically contacted with the lower surface of the bent portion, and the pair of fixed contacts 3 are electrically connected via the movable contact 4.

また、２６はケース２１内に上下動可能に収納された操作軸、２７は弾性金属薄板製の接触片で、操作軸２６側面には、両端に略コの字状の溝部２６Ａと、中央に上端開口の窪部２６Ｂが形成された保持部２６Ｃが設けられ、この保持部２６Ｃの溝部２６Ａに、接触片２７一端の固定部２７Ａが下方から挿入されている。   Reference numeral 26 denotes an operation shaft housed in the case 21 so as to be movable up and down. Reference numeral 27 denotes a contact piece made of an elastic metal thin plate. On the side surface of the operation shaft 26, a substantially U-shaped groove 26A is formed at both ends, A holding part 26C in which a recess 26B having an upper end opening is formed is provided, and a fixing part 27A at one end of the contact piece 27 is inserted into the groove part 26A of the holding part 26C from below.

そして、操作軸２６の保持部２６Ｃの溝部２６Ａ下面には、接触片２７の固定部２７Ａ両端から外方に突出する舌部２７Ｂ上面が当接すると共に、保持部２６Ｃの窪部２６Ｂ下端には、接触片２７の固定部２７Ａ中央から操作軸２６方向に突出する突部２７Ｃが係止されて、操作軸２６の保持部２６Ｃに接触片２７の固定部２７Ａが保持固定されている。   The upper surface of the tongue 27B protruding outward from both ends of the fixing portion 27A of the contact piece 27 is in contact with the lower surface of the groove portion 26A of the holding portion 26C of the operation shaft 26, and the lower end of the recess portion 26B of the holding portion 26C is A protrusion 27C protruding from the center of the fixing portion 27A of the contact piece 27 toward the operation shaft 26 is locked, and the fixing portion 27A of the contact piece 27 is held and fixed to the holding portion 26C of the operation shaft 26.

また、操作軸２６下面とケース２１の内底面の間には、やや撓んだ状態のコイル状の操作バネ９が装着されて操作軸２６を上方へ付勢すると共に、ケース２１の開口部をカバー２８が覆い、カバー２８には外周にネジ山が形成された軸受部２８Ａが設けられ、この中央の貫通孔２８Ｂ内を操作軸２６が挿通している。   In addition, a slightly bent coil-shaped operation spring 9 is mounted between the lower surface of the operation shaft 26 and the inner bottom surface of the case 21 to urge the operation shaft 26 upward and to open the opening of the case 21. The cover 28 is covered, and the cover 28 is provided with a bearing portion 28A having a thread formed on the outer periphery, and the operation shaft 26 is inserted through the central through hole 28B.

さらに、カバー２８下面には、下方に突出し内側面が固定接点２２の接触面と同一面の一対のリブ２８Ｃが設けられ、このリブ２８Ｃ内側面には、中間のアーム部２７Ｄをやや撓ませた状態で接触片２７他端の接点部２７Ｅが弾接すると共に、リブ２８Ｃ下端が固定接点２２の上端に当接して、プッシュスイッチ３０が構成されている。   Further, a pair of ribs 28C protruding downward and having an inner surface flush with the contact surface of the fixed contact 22 are provided on the lower surface of the cover 28, and the intermediate arm portion 27D is slightly bent on the inner surface of the rib 28C. In this state, the contact portion 27E at the other end of the contact piece 27 is in elastic contact, and the lower end of the rib 28C is in contact with the upper end of the fixed contact 22 to constitute the push switch 30.

このような構成のプッシュスイッチは、先ず、ケース２１の内底面に一対の固定接点２２と固定接点３を溶着やカシメ等によって固定した後、可動接点４とやや撓めた接圧バネ５をケース２１内底面と固定接点３の間に挿入し、可動接点４の両端を一対の固定接点３の折曲部下面に弾接させる。   In the push switch having such a configuration, first, a pair of fixed contact 22 and fixed contact 3 are fixed to the inner bottom surface of the case 21 by welding, caulking, or the like, and then the movable contact 4 and the contact pressure spring 5 slightly bent are attached to the case. 21 is inserted between the bottom surface of the inner surface 21 and the fixed contact 3, and both ends of the movable contact 4 are brought into elastic contact with the lower surfaces of the bent portions of the pair of fixed contacts 3.

次に、図３の部分分解斜視図に示すように、操作軸２６の保持部２６Ｃの溝部２６Ａに下方から接触片２７の固定部２７Ａを挿入し、この溝部２６Ａ下面に接触片２７の舌部２７Ｂ上面を当接させると共に、保持部２６Ｃの溝部２６Ｂ下端に接触片２７の突部２７Ｃを係止して、操作軸２６の保持部２６Ｃに接触片２７を保持固定する。   Next, as shown in the partially exploded perspective view of FIG. 3, the fixing portion 27A of the contact piece 27 is inserted into the groove portion 26A of the holding portion 26C of the operation shaft 26 from below, and the tongue portion of the contact piece 27 is inserted into the lower surface of the groove portion 26A. The upper surface of 27B is brought into contact, and the protrusion 27C of the contact piece 27 is locked to the lower end of the groove 26B of the holding portion 26C, so that the contact piece 27 is held and fixed to the holding portion 26C of the operation shaft 26.

そして、図４の部分断面図に示すように、接触片２７を保持した操作軸２６をカバー２８中央の貫通孔２８Ｂ内に挿通し、カバー２８下面のリブ２８Ｃに接触片２７の接点部２７Ｅを弾接させて、カバー２８に操作軸２６を仮保持する。   4, the operating shaft 26 holding the contact piece 27 is inserted into the through hole 28B in the center of the cover 28, and the contact portion 27E of the contact piece 27 is inserted into the rib 28C on the lower surface of the cover 28. The operating shaft 26 is temporarily held on the cover 28 by elastic contact.

最後に、この操作軸２６を仮保持したカバー２８と、固定接点２２や固定接点３が植設され可動接点４や接圧バネ５、操作バネ９が組込まれたケース２１を組合わせ、カバー２８によってケース２１の開口部を覆って、プッシュスイッチ３０が完成する。   Finally, the cover 28 temporarily holding the operation shaft 26 is combined with the case 21 in which the fixed contact 22 and the fixed contact 3 are implanted and the movable contact 4, the contact pressure spring 5, and the operation spring 9 are assembled. Thus, the push switch 30 is completed covering the opening of the case 21.

以上の構成において、カバー２８の貫通孔２８Ｂから突出した操作軸２６上面を押圧操作すると、図５の断面図に示すように、操作軸２６が操作バネ９を撓めながら下方へ移動し、この側面の保持部２６Ｃに保持された接触片２７の接点部２７Ｅが、カバー２８のリブ２８Ｃ内側面を弾接摺動して、接触面がリブ２８Ｃ内側面と同一面の固定接点２２に接触し、一対の固定接点２２の接触片２７を介した電気的接続が行われる。   In the above configuration, when the upper surface of the operating shaft 26 protruding from the through hole 28B of the cover 28 is pressed, the operating shaft 26 moves downward while bending the operating spring 9, as shown in the cross-sectional view of FIG. The contact portion 27E of the contact piece 27 held by the side holding portion 26C slides elastically on the inner side surface of the rib 28C of the cover 28, and the contact surface comes into contact with the fixed contact 22 on the same surface as the inner side surface of the rib 28C. The electrical connection through the contact piece 27 of the pair of fixed contacts 22 is performed.

また、同時に、操作軸２６の下面が可動接点４の上面中央を押圧して、接圧バネ５が撓められ、可動接点４の両端が固定接点３の折曲部下面から離れて、一対の固定接点３が電気的に遮断されるように構成されている。   At the same time, the lower surface of the operating shaft 26 presses the center of the upper surface of the movable contact 4, the contact spring 5 is bent, and both ends of the movable contact 4 are separated from the lower surface of the bent portion of the fixed contact 3. The fixed contact 3 is configured to be electrically disconnected.

そして、以上のような構成のプッシュスイッチ３０は、従来の技術の場合と同様に、図６の側面図に示すように、ブレーキペダル１２と一体に形成されたアングル１２Ｂに、操作軸２６が押圧された状態で、止め具１３によってカバー２８の軸受部２８Ａ外周が車体に装着される。   As in the case of the prior art, the push switch 30 configured as described above is configured such that the operation shaft 26 is pressed against the angle 12B formed integrally with the brake pedal 12, as shown in the side view of FIG. In this state, the outer periphery of the bearing portion 28A of the cover 28 is attached to the vehicle body by the stopper 13.

また、プッシュスイッチ３０にはコネクタ１４が取付けられ、電気的に接続された固定接点２２は電源１５を介して、走行速度を一定に保つオートドライブ機能等を制御する電子回路１６に、電気的に遮断された固定接点３は同じく自動車のストップランプ回路１７に各々接続される。   A connector 14 is attached to the push switch 30, and the electrically connected fixed contact 22 is electrically connected to an electronic circuit 16 that controls an auto drive function and the like that keeps the traveling speed constant via a power source 15. The blocked fixed contacts 3 are also connected to the stop lamp circuit 17 of the automobile.

そして、このようにプッシュスイッチ３０の操作軸２６が押圧された状態から、図６に破線で示したようにブレーキペダル１２を踏むと、アングル１２Ｂが支持部１２Ａを支点として回転して、操作軸２６が接圧バネ５や操作バネ９の付勢力によって図１に示した状態に戻るため、接触片２７が固定接点２２から離れ、電子回路１６のオートドライブ機能が解除される。   Then, when the brake pedal 12 is stepped on as shown by the broken line in FIG. 6 from the state in which the operation shaft 26 of the push switch 30 is pressed in this way, the angle 12B rotates around the support portion 12A, and the operation shaft 26 returns to the state shown in FIG. 1 by the urging force of the contact pressure spring 5 and the operation spring 9, the contact piece 27 is separated from the fixed contact 22, and the automatic drive function of the electronic circuit 16 is released.

また、同時に、接圧バネ５の付勢力によって、可動接点４の両端が一対の固定接点３の折曲部下面に接触するため、ストップランプ回路１７が点灯して、ブレーキペダル１２が踏まれたことを知らせるように構成されている。   At the same time, both ends of the movable contact 4 are brought into contact with the lower surfaces of the bent portions of the pair of fixed contacts 3 by the biasing force of the contact pressure spring 5, so that the stop lamp circuit 17 is turned on and the brake pedal 12 is stepped on. It is configured to let you know.

このように本実施の形態によれば、リベットや溶着、カシメ等を用いず、操作軸２６の保持部２６Ｃに接触片２７の固定部２７Ａをワンタッチで保持できるため、操作軸２６に接触片２７を保持固定する際に接触片が変形しにくくなり、接点の安定した接触が得られ、組立てが容易で安価なプッシュスイッチを得ることができるものである。   As described above, according to the present embodiment, the fixing portion 27A of the contact piece 27 can be held by the one-touch holding portion 26C of the operation shaft 26 without using rivets, welding, caulking or the like. When holding and fixing the contact piece, the contact piece is difficult to be deformed, stable contact of the contact is obtained, and an easy-to-assemble and inexpensive push switch can be obtained.

そして、カバー２８下面に内側面が固定接点２２の接触面と同一面のリブ２８Ｃを設け、このリブ２８Ｃ内側面に接触片２７の接点部２７Ｅを弾接させることによって、カバー２８に操作軸２６を仮保持した状態でスイッチの組立てが行えるため、接触片２７を保持した操作軸２６とケース２１を組立てる際に接触片２７が変形しにくくなり、接点の接触がさらに安定し安価なプッシュスイッチが得られると共に、組立ての自動化も容易に実現することができる。   Then, a rib 28C whose inner surface is flush with the contact surface of the fixed contact 22 is provided on the lower surface of the cover 28, and the contact portion 27E of the contact piece 27 is elastically contacted with the inner surface of the rib 28C. Since the switch can be assembled in a state in which the contact piece 27 is temporarily held, when the operation shaft 26 holding the contact piece 27 and the case 21 are assembled, the contact piece 27 is less likely to be deformed. As a result, automation of assembly can be easily realized.

また、カバー２８下面の下方に突出したリブ２８Ｃ下端を、固定接点２２の上端に当接させることによって、固定接点２２の溶着やカシメ等によるケース２１への保持に加え、固定接点２２上端にカバー２８のリブ２８Ｃ下端が当接しているため、ケース２１外方に突出した固定接点２２下端に外力が加わった場合にも、より強固で確実に固定接点２２の保持を行うことができる。   Further, the lower end of the rib 28 </ b> C protruding downward from the lower surface of the cover 28 is brought into contact with the upper end of the fixed contact 22, so that the fixed contact 22 is welded, caulked, etc. Since the lower end of the rib 28C of the 28 is in contact, even when an external force is applied to the lower end of the fixed contact 22 protruding outward from the case 21, the fixed contact 22 can be held more firmly and reliably.

さらに、図７の部分分解斜視図に示すように、弾性金属薄板製の接触片２７の固定部２７Ａ中央の突部２７Ｆを舌片状とし、この突部２７Ｆをやや撓ませた状態で、下端を操作軸２６の保持部２６Ｃの窪部２６Ｂ下端に弾接させることによって、接触片２７のがたつきがなくなり、さらに接点の接触を安定したものとすることができる。   Furthermore, as shown in the partially exploded perspective view of FIG. 7, the protrusion 27F in the center of the fixing portion 27A of the contact piece 27 made of elastic metal thin plate is formed in a tongue shape, and the protrusion 27F is bent slightly, Is elastically brought into contact with the lower end of the recessed portion 26B of the holding portion 26C of the operating shaft 26, so that the contact piece 27 is not rattled and the contact of the contact can be stabilized.

本発明によるプッシュスイッチ及びその製造方法は、接点の安定した接触が得られ、組立てが容易で安価なものを得ることができ、主に自動車のブレーキペダル操作軸のストップランプの点消灯制御用として有用である。   The push switch and the manufacturing method thereof according to the present invention can obtain a stable contact, can be easily assembled, and can be inexpensive, and is mainly used for controlling turning on / off of a stop lamp of an automobile brake pedal operation shaft. Useful.

本発明の一実施の形態によるプッシュスイッチの断面図Sectional drawing of the push switch by one embodiment of this invention 同分解斜視図Exploded perspective view 同部分分解斜視図Partial exploded perspective view 同部分断面図Partial sectional view of the same 同操作時の断面図Cross section during the same operation 同自動車装着時の側面図Side view with the car installed 同部分分解斜視図Partial exploded perspective view 従来のプッシュスイッチの断面図Cross section of a conventional push switch 同分解斜視図Exploded perspective view 同操作時の断面図Cross section during the same operation 同自動車装着時の側面図Side view with the car installed

符号の説明Explanation of symbols

３ 固定接点
４ 可動接点
５ 接圧バネ
９ 操作バネ
１２ ブレーキペダル
１２Ａ 支持部
１２Ｂ アングル
１３ 止め具
１４ コネクタ
１５ 電源
１６ 電子回路
１７ ストップランプ回路
２１ ケース
２２ 固定接点
２６ 操作軸
２６Ａ 溝部
２６Ｂ 窪部
２６Ｃ 保持部
２７ 接触片
２７Ａ 固定部
２７Ｂ 舌部
２７Ｃ、２７Ｆ 突部
２７Ｄ アーム部
２７Ｅ 接点部
２８ カバー
２８Ａ 軸受部
２８Ｂ 貫通孔
２８Ｃ リブ
３０ プッシュスイッチ DESCRIPTION OF SYMBOLS 3 Fixed contact 4 Movable contact 5 Contact pressure spring 9 Operation spring 12 Brake pedal 12A Support part 12B Angle 13 Stopper 14 Connector 15 Power supply 16 Electronic circuit 17 Stop lamp circuit 21 Case 22 Fixed contact 26 Operation shaft 26A Groove 26B Depression 26C Holding Part 27 Contact piece 27A Fixing part 27B Tongue part 27C, 27F Projection part 27D Arm part 27E Contact part 28 Cover 28A Bearing part 28B Through hole 28C Rib 30 Push switch

Claims (3)

上面開口で内底面を有する筒状の絶縁樹脂製のケースと、このケースの内底面に植設され上方に突出した一対の固定接点と、上記ケース内に上下動可能に収納された操作軸と、この操作軸側面に一端の固定部が保持され、中間のアーム部がやや撓んだ状態で、他端の接点部が操作軸の上下動によって上記固定接点上を弾接摺動する弾性金属薄板製の接触片と、上記ケース内にやや撓んだ状態で装着され上記操作軸を上方へ付勢するコイル状の操作バネと、中央に上記操作軸が挿通する貫通孔を有し上記ケースの開口部を覆うカバーからなり、上記カバー下面に、下方に突出し内側面が固定接点の接触面と同一面の一対のリブを設け、このリブ内側面に上記接触片の接点部を弾接させたプッシュスイッチ。 A case made of a cylindrical insulating resin having an inner bottom surface with an upper surface opening, a pair of fixed contacts planted on the inner bottom surface of the case and projecting upward, and an operation shaft housed in the case so as to be vertically movable An elastic metal in which a fixed portion at one end is held on the side surface of the operation shaft, and an intermediate arm portion is slightly bent, and a contact portion at the other end elastically slides on the fixed contact by the vertical movement of the operation shaft. The case having a thin plate contact piece, a coiled operation spring which is mounted in the case in a slightly bent state and biases the operation shaft upward, and a through hole through which the operation shaft is inserted in the center. A pair of ribs projecting downward and having an inner surface flush with the contact surface of the fixed contact, and the contact portion of the contact piece is elastically contacted to the inner surface of the rib. Push switch. カバー下面の下方に突出したリブ下端を、固定接点の上端に当接させた請求項１記載のプッシュスイッチ。 The push switch according to claim 1, wherein a lower end of the rib projecting downward from the lower surface of the cover is brought into contact with an upper end of the fixed contact. 操作軸側面の保持部に接触片の固定部を保持した後、カバー中央の貫通孔に上記操作軸を挿通し、上記カバー下面の下方に突出したリブ内側面に接触片の接点部を弾接させて、上記カバーに上記操作軸を仮保持し、これと内底面に固定接点が植設されたケースを組合わせる請求項１記載のプッシュスイッチの製造方法。 After holding the fixed part of the contact piece on the holding part on the side of the operation shaft, insert the operation shaft into the through hole in the center of the cover, and elastically contact the contact part of the contact piece on the inner side of the rib protruding downward from the lower surface of the cover The method for manufacturing a push switch according to claim 1, wherein the operating shaft is temporarily held on the cover, and a case in which a fixed contact is implanted on the inner bottom surface is combined.
JP2007034818A 2007-02-15 2007-02-15 Push switch and manufacturing method thereof Expired - Lifetime JP4353255B2 (en)

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JP5008194B2 (en) * 2007-08-28 2012-08-22 東京パーツ工業株式会社 Push switch
JP5816809B2 (en) * 2011-03-10 2015-11-18 パナソニックＩｐマネジメント株式会社 Switch device
JP6418772B2 (en) * 2014-04-11 2018-11-07 日本ステップ工業株式会社 Signal float

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