JP2008028205A

JP2008028205A - Rotating body, method for manufacturing the same, and rotating electronic component

Info

Publication number: JP2008028205A
Application number: JP2006200085A
Authority: JP
Inventors: Shigeaki Kinoshita; 茂明木下; Kazuo Ichiyanagi; 和夫一柳; Atsushi Hari; 篤志播; Taku Sato; 卓佐藤
Original assignee: Teikoku Tsushin Kogyo Co Ltd
Current assignee: Teikoku Tsushin Kogyo Co Ltd
Priority date: 2006-07-21
Filing date: 2006-07-21
Publication date: 2008-02-07

Abstract

【課題】小型・薄型化を図ることができる回転体及びその製造方法及び回転式電子部品を提供する。
【解決手段】第１ケース１０に設けた収納部１１内に回動自在に収納され、且つ摺動子１００を取り付けてなる回転体８０において、摺動子１００は、回転体８０内に設置される基部１０１と、回転体８０の外周側面から半径方向外方に向かって突出する摺動冊子１０３とを有して構成される。回転体８０の外周側面から突出した摺動冊子１０３は、回転体８０の回転方向に沿うように湾曲している。
【選択図】図４A rotating body that can be reduced in size and thickness, a manufacturing method thereof, and a rotating electronic component are provided.
In a rotating body 80 that is rotatably stored in a storage portion 11 provided in a first case 10 and has a slider 100 attached thereto, the slider 100 is installed in the rotating body 80. And a sliding booklet 103 that protrudes radially outward from the outer peripheral side surface of the rotating body 80. The sliding booklet 103 protruding from the outer peripheral side surface of the rotating body 80 is curved so as to follow the rotating direction of the rotating body 80.
[Selection] Figure 4

Description

本発明は、回転式可変抵抗器等の回転式電子部品に用いて好適な回転体及びその製造方法及び回転式電子部品に関するものである。 The present invention relates to a rotator suitable for use in a rotary electronic component such as a rotary variable resistor, a method for manufacturing the same, and a rotary electronic component.

従来、回転式可変抵抗器や回転式スイッチ等の回転式電子部品は、ケースに設けた収納部内に回転自在に回転体を収納し、その際回転体の下面（ケースの収納部の底面に対向する面）に取り付けた摺動子をケースの収納部底面に設けた摺接パターンに当接し、回転体を収納したケースの上面をカバーで覆って構成されていた（例えば特許文献１）。 Conventionally, a rotary electronic component such as a rotary variable resistor or a rotary switch has a rotating body that is rotatably housed in a housing provided in the case, and the lower surface of the rotating body (facing the bottom surface of the housing of the case) The sliding element attached to the bottom surface of the case is in contact with a sliding contact pattern provided on the bottom surface of the case, and the upper surface of the case storing the rotating body is covered with a cover (for example, Patent Document 1).

そしてこの種の回転式電子部品は、その厚みをより薄くすることが求められているが、ケースや回転体を構成する成形樹脂の厚みをより薄くすることは、強度上の限界があり、さらなる回転式電子部品の小型化は困難となっていた。
特開２００５−７８８４４号公報 And this type of rotary electronic component is required to be thinner, but reducing the thickness of the molding resin constituting the case and the rotating body has a limit in strength, and further It has been difficult to reduce the size of rotary electronic components.
JP 2005-78844 A

本発明は上述の点に鑑みてなされたものでありその目的は、小型・薄型化を図ることができる回転体及びその製造方法及び回転式電子部品を提供することにある。 The present invention has been made in view of the above points, and an object of the present invention is to provide a rotating body that can be reduced in size and thickness, a manufacturing method thereof, and a rotary electronic component.

本願請求項１に記載の発明は、ケースに設けた収納部内に回動自在に収納され、且つ摺動子を取り付けてなる回転体において、前記摺動子は、前記回転体内に設置される基部と、前記回転体の外周側面から半径方向外方に向かって突出する摺動冊子とを有して構成されていることを特徴とする回転体にある。 The invention according to claim 1 is a rotating body that is rotatably housed in a housing portion provided in a case and has a slider attached thereto, wherein the slider is a base portion installed in the rotating body. And a sliding booklet protruding outward in the radial direction from the outer peripheral side surface of the rotating body.

本願請求項２に記載の発明は、前記回転体の外周側面から突出した摺動冊子は、回転体の回転方向に沿うように湾曲していることを特徴とする請求項１に記載の回転体にある。 The invention according to claim 2 of the present application is characterized in that the sliding booklet protruding from the outer peripheral side surface of the rotating body is curved so as to follow the rotating direction of the rotating body. It is in.

本願請求項３に記載の発明は、前記摺動子の基部は、前記回転体の内部にインサート成形されていることを特徴とする請求項１又は２に記載の回転体にある。 The invention according to claim 3 of the present application resides in the rotating body according to claim 1 or 2, wherein the base portion of the slider is insert-molded inside the rotating body.

本願請求項４に記載の発明は、ケースと、ケースに設けた収納部内に回動自在に収納される回転体と、前記回転体とケースの間に設置され回転体の回転によってその電気的出力を変化する電気的機能部とを具備する回転式電子部品において、前記回転体は請求項１又は２又は３に記載の回転体であり、前記電気的機能部は回転体側に設置される前記摺動子と、ケース側に設置される摺接パターンとを具備して構成され、一方前記回転体は、ケース又は回転体の何れか一方に設けた軸部を他方に設けた軸支孔に回動自在に挿入することで回動自在に軸支されていることを特徴とする回転式電子部品にある。 The invention according to claim 4 is a case, a rotating body that is rotatably housed in a housing portion provided in the case, and an electrical output of the rotating body that is installed between the rotating body and the case by the rotation of the rotating body. In the rotary electronic component comprising the electrical function unit that changes the rotating function, the rotating body is the rotating body according to claim 1 or 2, and the electrical function unit is installed on the rotating body side. The rotating body is configured to include a sliding contact pattern installed on the case side, while the rotating body rotates the shaft portion provided on either the case or the rotating body to the shaft support hole provided on the other side. The rotary electronic component is rotatably supported by being rotatably inserted.

本願請求項５に記載の発明は、線材をコイル状に巻き回してなるコイル部及びコイル部の両側から引き出されるコイル引出部とを有するコイルスプリングを具備し、前記ケース又は回転体の何れか一方に設けた軸部を前記コイルスプリングのコイル部に挿入し、コイル部両側のコイル引出部を回転体に設けた一対の係止部に係止すると共に前記ケースに設けた一対の当接部に係止し、これによって回転体の自動復帰機構を構成し、さらにケース底面の前記係止部に対向する部分に係止部の移動範囲にわたる係止部挿入部を設けたことを特徴とする請求項４に記載の回転式電子部品にある。 The invention according to claim 5 includes a coil spring having a coil portion formed by winding a wire rod in a coil shape and a coil lead-out portion drawn from both sides of the coil portion, and either the case or the rotating body. The shaft portion provided on the coil spring is inserted into the coil portion of the coil spring, and the coil lead-out portions on both sides of the coil portion are locked to the pair of locking portions provided on the rotating body, and the pair of contact portions provided on the case An automatic return mechanism of the rotating body is configured by locking, and a locking portion insertion portion that extends over a moving range of the locking portion is provided at a portion of the bottom surface of the case facing the locking portion. Item 4 is a rotary electronic component according to Item 4.

本願請求項６に記載の発明は、前記摺接パターンは回路基板上に形成され、且つこの回路基板には前記摺接パターンに接続される端子板当接部が形成され、前記回路基板は前記ケース内にその摺接パターンの部分が収納部の底面に露出するとともに、前記端子板当接部に端子板を当接した状態でケース内にインサート成形され、各端子板から前記ケースの外部に突出する端子の先端部分を同一面としてこの面を実装面としたことを特徴とする請求項４又は５に記載の回転式電子部品にある。 According to a sixth aspect of the present invention, the sliding contact pattern is formed on a circuit board, and a terminal plate contact portion connected to the sliding contact pattern is formed on the circuit board, and the circuit board is A portion of the sliding contact pattern in the case is exposed on the bottom surface of the storage portion, and is insert-molded in the case with the terminal plate abutting on the terminal plate abutting portion, and from each terminal plate to the outside of the case. The rotary electronic component according to claim 4 or 5, wherein the protruding terminal portion is the same surface and this surface is used as a mounting surface.

本願請求項７に記載の発明は、ケースに設けた収納部内に回動自在に収納され、且つ摺動子を取り付けてなる回転体の製造方法において、基部と基部の外周から外方に向かって突出する摺動冊子とを具備する摺動子を用意し、金型に設けた回転体成型用のキャビティー内に前記摺動子の基部を設置し、その際金型からキャビティー内に突出するピンを前記摺動子の基部に当接して支持し、前記基部の前記ピンが当接した反対面側から溶融成形樹脂を圧入してキャビティー内を満たし、溶融成形樹脂硬化後にキャビティーを取り外すことを特徴とする回転体の製造方法にある。 The invention according to claim 7 of the present invention is a method of manufacturing a rotating body that is rotatably housed in a housing portion provided in a case and has a slider attached thereto, from the outer periphery of the base and the base toward the outside. Prepare a slider equipped with a sliding booklet that protrudes, and place the base of the slider in the cavity for molding the rotating body provided in the mold, and then protrude from the mold into the cavity A pin to be in contact with and supported by the base of the slider, and press-fit a melt-molded resin from the opposite side of the base to which the pin abuts to fill the cavity. It is in the manufacturing method of the rotary body characterized by removing.

本願請求項８に記載の発明は、前記キャビティー内に溶融成形樹脂を圧入する際、前記基部に設けられている樹脂貫通穴に前記溶融成形樹脂を注入することを特徴とする請求項７に記載の回転体の製造方法にある。 The invention according to claim 8 of the present application is characterized in that when the molten molding resin is press-fitted into the cavity, the molten molding resin is injected into a resin through hole provided in the base portion. It exists in the manufacturing method of the rotary body of description.

請求項１に記載の発明によれば、回転体の外周側面から半径方向外方に向かって摺動子の摺動冊子を突出したので、摺動子を回転体の厚みの中に包含でき、その分この回転体を装着する回転式電子部品の厚みの薄型化が図れる。 According to the invention described in claim 1, since the sliding booklet of the slider protrudes radially outward from the outer peripheral side surface of the rotating body, the slider can be included in the thickness of the rotating body, Accordingly, the thickness of the rotary electronic component on which the rotating body is mounted can be reduced.

請求項２に記載の発明によれば、外周側面から摺動冊子を突出する構造の回転体であっても、その外形を小型化できる。 According to invention of Claim 2, even if it is a rotary body of the structure which protrudes a sliding booklet from an outer peripheral side surface, the external shape can be reduced in size.

請求項３に記載の発明によれば、摺動子の基部を回転体内にインサート成形するので、摺動子が確実に回転体に固定できる。 According to the third aspect of the invention, since the base portion of the slider is insert-molded in the rotating body, the slider can be reliably fixed to the rotating body.

請求項４に記載の発明によれば、請求項１又は２又は３に記載の回転体を用いることで、回転式電子部品の厚みの薄型化が図れる。 According to the invention described in claim 4, by using the rotating body described in claim 1, 2 or 3, the thickness of the rotary electronic component can be reduced.

請求項５に記載の発明によれば、ケース底面に設けた係止部挿入部に、回転体に設けた係止部を挿入するので、コイルスプリングのコイル引出部が係止部から外れる恐れを確実に防止できると同時に、回転体をケース底面に接近して設置でき、回転式電子部品の薄型化が図れる。 According to the fifth aspect of the present invention, since the locking portion provided on the rotating body is inserted into the locking portion insertion portion provided on the bottom surface of the case, there is a risk that the coil extraction portion of the coil spring may come off from the locking portion. While being able to prevent reliably, a rotary body can be installed close to the bottom face of a case, and thickness reduction of a rotary electronic component can be achieved.

請求項６に記載の発明によれば、回転式電子部品を容易に面実装構造にすることができる。 According to the sixth aspect of the present invention, the rotary electronic component can be easily made into a surface mounting structure.

請求項７に記載の発明によれば、例え摺動子が薄くて溶融成形樹脂の注入圧力によって変形する恐れがある場合でも、ピンが摺動子を支えることで、前記変形を確実に防止できる。 According to the seventh aspect of the present invention, even when the slider is thin and may be deformed by the injection pressure of the melt-molded resin, the pin can support the slider to reliably prevent the deformation. .

請求項８に記載の発明によれば、回転体に対する摺動子の固定がより強固になる。 According to the eighth aspect of the invention, the slider is more firmly fixed to the rotating body.

以下、本発明の実施形態を図面に基づいて詳細に説明する。
図１は本発明の第１実施形態にかかる回転体８０を用いた回転式電子部品１−１を上側から見た斜視図、図２は回転式電子部品１−１を下側から見た斜視図、図３は図１のＡ−Ａ断面斜視図、図４は回転式電子部品１−１を上側から見た分解斜視図、図５は回転式電子部品１−１を下側から見た分解斜視図である。なお以下の説明において、「上側（上）」とはこの回転式電子部品１−１を載置する面の反対側の面、「下側（下）」とはこの回転式電子部品１−１を載置する側の面を言うものとする。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a rotary electronic component 1-1 using the rotating body 80 according to the first embodiment of the present invention as viewed from above, and FIG. 2 is a perspective view of the rotary electronic component 1-1 as viewed from below. FIG. 3, FIG. 3 is an AA cross-sectional perspective view of FIG. 1, FIG. 4 is an exploded perspective view of the rotary electronic component 1-1 as viewed from above, and FIG. 5 is a view of the rotary electronic component 1-1 as viewed from below. It is a disassembled perspective view. In the following description, “upper (upper)” means a surface opposite to the surface on which the rotary electronic component 1-1 is placed, and “lower (lower)” means this rotary electronic component 1-1. The surface on the side on which is placed shall be said.

図４，図５に示すようにこの回転式電子部品１−１は、１枚の回路基板４０と３枚の端子板５０，５５，６０とがインサート成形された第１ケース１０と、自動復帰機構を構成する弾発手段（以下この実施形態では「コイルスプリング」という）７０と、電気的機能部である摺動子１００がインサート成形された回転体８０と、前記コイルスプリング７０と回転体８０とを収納した第１ケース１０の上面に取り付けられる第２ケース１２０とを具備して構成されている。以下各構成部品について説明する。 As shown in FIGS. 4 and 5, the rotary electronic component 1-1 includes a first case 10 in which one circuit board 40 and three terminal boards 50, 55, 60 are insert-molded, and an automatic return. An elastic means (hereinafter referred to as “coil spring” in this embodiment) 70 constituting a mechanism, a rotary body 80 in which a slider 100 as an electrical function part is insert-molded, the coil spring 70 and the rotary body 80. And a second case 120 attached to the upper surface of the first case 10. Each component will be described below.

図６は第１ケース１０と第１ケース１０内にインサート成形される回路基板４０と端子板５０，５５，６０とを分離してそれぞれを別々に示す分解斜視図である。同図に示すように第１ケース１０は、合成樹脂を略矩形板状に成形し、その上面中央に略円形凹状の収納部１１を設けるとともに、第１ケース１０の外周辺の内の１辺の中央部分を前記収納部１１の底面に至るまで切り欠くことで操作つまみ挿通部１３を設け、また収納部１１の中央にその底面から突出する円柱状の軸部１５を設けて構成されている。操作つまみ挿通部１３の両端部分には下記するコイルスプリング７０のコイル引出部７３，７３を弾接する自動復帰機構を構成する当接部１４，１４を設けている。収納部１１の底面の前記軸部１５の両側部には一対の円形の凹部１９が設けられ、また底面の前記操作つまみ挿通部１３の両端近傍部分には円弧状の凹部からなる係止部挿入部２１が設けられている。係止部挿入部２１には下記する回転体８０の係止部８７が収納される。また第１ケース１０の上端面の２つの角部と、それ以外の二ヶ所とに、それぞれ円形の凹部２５が設けられている。前記角部の２つの凹部２５の底面には端子板５５の表面が露出しており、図６の奥側の外周側壁上の上端面中央の凹部２５の底面には端子板５０の表面が露出しており、図６の手前側の外周側壁上の上端面中央の凹部２５の底面には端子板６０の表面が露出している。第１ケース１０の下面の所定位置にはこの第１ケース１０を下記する図９に示す回路基板２００に設けた位置決め穴２０３，２０３に挿入して位置決めする位置決め突起２９，２９が設けられている。第１ケース１０の下面には下記する第２ケース１２０の取付部１２３の先端を収納する凹状の係止部３５を設けている。この実施形態においては第１ケース１０の材質としてポリアミド樹脂を用いているが、他の各種樹脂材を用いても良い。 FIG. 6 is an exploded perspective view showing the first case 10 and the circuit board 40 insert-molded in the first case 10 and the terminal plates 50, 55, 60 separately and separately showing them. As shown in the figure, the first case 10 is formed of a synthetic resin in a substantially rectangular plate shape, provided with a substantially circular concave storage portion 11 at the center of the upper surface, and one side of the outer periphery of the first case 10. An operation knob insertion portion 13 is provided by cutting out the central portion of the storage portion 11 to reach the bottom surface of the storage portion 11, and a cylindrical shaft portion 15 protruding from the bottom surface is provided at the center of the storage portion 11. . At both ends of the operation knob insertion portion 13, contact portions 14 and 14 constituting an automatic return mechanism that elastically contacts coil drawing portions 73 and 73 of a coil spring 70 described below are provided. A pair of circular recesses 19 are provided on both sides of the shaft portion 15 on the bottom surface of the storage portion 11, and an engaging portion insertion made of an arc-shaped recess is inserted in the vicinity of both ends of the operation knob insertion portion 13 on the bottom surface. A portion 21 is provided. The locking portion insertion portion 21 accommodates a locking portion 87 of the rotating body 80 described below. In addition, circular recesses 25 are respectively provided at two corners of the upper end surface of the first case 10 and at two other portions. The surface of the terminal plate 55 is exposed on the bottom surfaces of the two concave portions 25 at the corners, and the surface of the terminal plate 50 is exposed on the bottom surface of the concave portion 25 at the center of the upper end surface on the outer peripheral side wall in FIG. The surface of the terminal plate 60 is exposed on the bottom surface of the concave portion 25 at the center of the upper end surface on the outer peripheral side wall on the near side in FIG. Positioning projections 29 and 29 are provided at predetermined positions on the lower surface of the first case 10 to insert and position the first case 10 into positioning holes 203 and 203 provided in the circuit board 200 shown in FIG. . The lower surface of the first case 10 is provided with a concave locking portion 35 that houses the tip of the mounting portion 123 of the second case 120 described below. In this embodiment, polyamide resin is used as the material of the first case 10, but various other resin materials may be used.

回路基板４０は可撓性を有する合成樹脂フイルム上に円弧状に一対の電気的機能部である摺接パターン４１，４３とそれらに接続する端子板当接部４５，４７，４９とを設けてなるフレキシブル回路基板によって構成されている。合成樹脂フイルムの材質はこの実施形態ではポリフェニレンスルフイド（ＰＰＳ）フイルムを用いているが、ポリイミドフイルムやポリエチレンテレフタレートフイルム等、他の各種材質のものを用いても良い。一対の摺接パターン４１，４３は同一円弧上にあり、一方の摺接パターン４１は高導電性のコモンパターン、もう一方の摺接パターン４３は抵抗体パターンである。摺接パターン４１は銀ペーストを印刷してなるパターン上に硫化対策のためのカーボンペーストを印刷して構成され、摺接パターン４３はカーボンペーストを印刷して構成されている。端子板当接部４５は摺接パターン４１の一端に接続されその外方に設けられている。端子板当接部４７，４９は摺接パターン４３の両側に接続されその外方に設けられている。端子板当接部４５，４７，４９は何れも銀ペーストを印刷してなるパターン上にウレタン樹脂中に銀粉を混練してなる銀ペーストを印刷して構成されている。ウレタン樹脂を用いた銀ペーストは所定のゴム弾性を有する。回路基板４０中央の前記第１ケース１０の軸部１５に対向する位置には円形に貫通する貫通孔４６が設けられており、また貫通孔４６の両側の前記第１ケース１０の凹部１９に一致する位置にも円形に貫通する貫通孔４８が設けられている。端子板５０，５５，６０は金属板製であり、それぞれ前記回路基板４０の外周近傍部分を囲むように設置され、端子板５０は略矩形状であって前記端子板当接部４５上に位置する形状に、端子板５５は細長い略矩形状であってその一端部が前記端子板当接部４７上に位置する形状に、端子板６０は略矩形状であって前記端子板当接部４９上に位置する形状に形成されている。各端子板５０，５５，６０の外方を向く辺からはそれぞれ細帯状の端子５１，５７，６１を突出し、その根元部分を直角に下方向に向けて折り曲げ、さらにその先端部分を直角に外方向（端子板５０，５５，６０から離れる方向）に向けて折り曲げ、前記先端部分を実装面５３，５９，６３として構成している。これら実装面５３，５９，６３の下面は第１ケース１０の下面と同一面に位置する。端子板５０，５５，６０の材質はこの実施形態ではリン青銅板の表面に銀めっきを施したものを用いているが、他の材質であっても良い。 The circuit board 40 has a sliding contact pattern 41, 43 which is a pair of electric function portions in a circular arc shape on a synthetic resin film having flexibility, and terminal plate contact portions 45, 47, 49 connected thereto. It is comprised by the flexible circuit board which becomes. In this embodiment, the material of the synthetic resin film is a polyphenylene sulfide (PPS) film, but other various materials such as a polyimide film and a polyethylene terephthalate film may be used. The pair of sliding contact patterns 41 and 43 are on the same arc, one sliding contact pattern 41 is a highly conductive common pattern, and the other sliding contact pattern 43 is a resistor pattern. The sliding contact pattern 41 is configured by printing a carbon paste for preventing sulfuration on a pattern formed by printing a silver paste, and the sliding contact pattern 43 is configured by printing a carbon paste. The terminal plate contact portion 45 is connected to one end of the sliding contact pattern 41 and is provided on the outer side thereof. The terminal plate abutting portions 47 and 49 are connected to both sides of the sliding contact pattern 43 and provided on the outside thereof. Each of the terminal plate contact portions 45, 47, and 49 is configured by printing a silver paste formed by kneading silver powder in urethane resin on a pattern formed by printing a silver paste. A silver paste using a urethane resin has a predetermined rubber elasticity. A through hole 46 penetrating in a circular shape is provided at a position facing the shaft portion 15 of the first case 10 in the center of the circuit board 40, and coincides with the concave portion 19 of the first case 10 on both sides of the through hole 46. A through-hole 48 penetrating in a circular shape is also provided at the position where it is located. The terminal plates 50, 55, 60 are made of metal plates and are respectively installed so as to surround portions near the outer periphery of the circuit board 40, and the terminal plate 50 has a substantially rectangular shape and is positioned on the terminal plate contact portion 45. The terminal plate 55 has an elongated, substantially rectangular shape with one end positioned on the terminal plate contact portion 47, and the terminal plate 60 has a substantially rectangular shape, with the terminal plate contact portion 49. It is formed in an upper shape. The strip-shaped terminals 51, 57, and 61 protrude from the outward facing sides of the terminal plates 50, 55, and 60, respectively, and bend their root portions downward at a right angle, and further detach the tip portion at a right angle. The tip portion is configured as mounting surfaces 53, 59, 63 by bending in a direction (a direction away from the terminal plates 50, 55, 60). The lower surfaces of the mounting surfaces 53, 59, 63 are located on the same surface as the lower surface of the first case 10. In this embodiment, the terminal plates 50, 55 and 60 are made of silver-plated phosphor bronze plates. However, other materials may be used.

そして実際には図４，図５に示すように、回路基板４０と各端子板５０，５５，６０は、第１ケース１０内にインサート成形されるが、その際回路基板４０の摺接パターン４１，４３は第１ケース１０の収納部１１の底面に露出する。また回路基板４０の端子板当接部４５，４７，４９上にはそれぞれ端子板５０，５５，６０が載置され、両者は第１ケース１０を構成する合成樹脂によって挟持され確実に接続される。具体的に前記インサート成形工程を説明すると、回路基板４０の端子板当接部４５，４７，４９に端子板５０，５５，６０をそれぞれ当接した状態でこれら回路基板４０と端子板５０，５５，６０とを金型内に収納し、これら回路基板４０と端子板５０，５５，６０の周囲に形成される金型のキャビティー（第１ケース１０の形状）内に溶融成形樹脂を、回路基板４０の下面側（摺接パターン４１，４３等を設けていない反対面側）から圧入し、その際の圧力によって前記回路基板４０を端子板５０，５５，６０に押し付けながら溶融成形樹脂をキャビティー内に満たし、樹脂硬化後に金型を取り外し、第１ケース１０を取り出す。第１ケース１０の凹部１９は、金型のキャビティー内に突出して前記回路基板４０の貫通孔４８に挿入される位置決め用のピンによって形成される。また第１ケース１０の凹部２５は、金型のキャビティー内に突出してその先端面が各当接板５０，５５，６０を支えて注入される溶融成形樹脂によって当接板５０，５５，６０が変形・変位するのを防止するピンによって形成される。 In practice, as shown in FIGS. 4 and 5, the circuit board 40 and the terminal boards 50, 55, 60 are insert-molded in the first case 10. , 43 are exposed on the bottom surface of the storage portion 11 of the first case 10. Terminal boards 50, 55, and 60 are placed on the terminal board abutting portions 45, 47, and 49 of the circuit board 40, respectively, and both are sandwiched and securely connected by the synthetic resin that constitutes the first case 10. . Specifically, the insert molding process will be described. The circuit board 40 and the terminal boards 50, 55 are in contact with the terminal board abutting portions 45, 47, 49 of the circuit board 40, respectively. , 60 are housed in a mold, and a melt-molding resin is placed in the mold cavity (the shape of the first case 10) formed around the circuit board 40 and the terminal plates 50, 55, 60, and the circuit. Press-fitting from the lower surface side of the substrate 40 (the opposite surface side where the sliding contact patterns 41, 43, etc. are not provided) and pressing the circuit substrate 40 against the terminal plates 50, 55, 60 with the pressure at that time, The inside of the tee is filled, the mold is removed after the resin is cured, and the first case 10 is taken out. The concave portion 19 of the first case 10 is formed by positioning pins that protrude into the cavity of the mold and are inserted into the through holes 48 of the circuit board 40. The concave portion 25 of the first case 10 protrudes into the cavity of the mold, and the contact surface 50, 55, 60 is formed by a molten molding resin whose tip end surface is poured to support the contact plates 50, 55, 60. Is formed by a pin that prevents deformation and displacement.

コイルスプリング７０はバネ弾性を有する線材の中間部分を巻き回して巻き回した部分をコイル部７１、その両端から直線状に突出する引出部分を弾発部（以下この実施形態では「コイル引出部」という）７３，７３として構成されている。コイルスプリング７０の材質としてこの実施形態ではステンレス製の線材を用いているが、他の各種材質の線材を用いても良い。 The coil spring 70 has a coil portion 71 formed by winding an intermediate portion of a wire material having spring elasticity, and a resilient portion (hereinafter referred to as “coil drawing portion” in this embodiment) protruding linearly from both ends thereof. 73, 73. In this embodiment, a stainless steel wire is used as the material of the coil spring 70, but other various wire materials may be used.

図７は回転体８０と回転体８０内にインサート成形される摺動子１００とを分離してそれぞれを別々に示す分解斜視図である。また図８（ａ）は摺動子１００をインサート成形した回転体８０の平面図、図８（ｂ）は摺動子１００単体の平面図、図８（ｃ）は回転体８０単体の平面図である。両図に示すように回転体８０は、合成樹脂を略矩形平板状に成形した本体部８１と、本体部８１の外周から半径方向外側（下記する軸支孔８５の中心軸から放射状に延びる直線上）に向かって突出する棒状の操作つまみ８３とによって構成されている。 FIG. 7 is an exploded perspective view in which the rotating body 80 and the slider 100 insert-molded in the rotating body 80 are separated and each shown separately. 8A is a plan view of the rotating body 80 in which the slider 100 is insert-molded, FIG. 8B is a plan view of the slider 100 alone, and FIG. 8C is a plan view of the rotor 80 alone. It is. As shown in both figures, the rotating body 80 includes a main body portion 81 formed of a synthetic resin in a substantially rectangular flat plate shape, and a straight line extending radially from the outer periphery of the main body portion 81 (radially extending from a central axis of a shaft support hole 85 described below). And a rod-shaped operation knob 83 protruding upward.

本体部８１は前記第１ケース１０の収納部１１内に回動自在に収納される外形寸法形状に形成されている。本体部８１は略矩形状であるが、詳細に説明すると、本体部８１には上下に貫通する円形の軸支孔８５があり、操作つまみ８３を設けていない反対側の軸支孔８５の外周は軸支孔８５に沿って円弧状の切り欠き９１がある。言い換えれば図８（ａ）に示すように、摺動子１００をインサート成形した回転体８０の切り欠き９１は、摺動冊子１０３の円弧形状に合せて摺動冊子１０３から同一寸法離れるように円弧状に形成されている。また本体部８１の下面の前記操作つまみ８３を突出するその両側部分には一対の下方向に突出する自動復帰機構を構成する係止部８７，８７が設けられている。軸支孔８５は前記第１ケース１０の軸部１５に回動自在に挿入される寸法形状に形成されている。また軸支孔８５の下部は図５に示すようにその内径を大きくして前記コイルスプリング７０のコイル部７１を収納するコイル部収納部８９となり、またコイル部収納部８９よりも操作つまみ８３側の面は扇状に凹むコイル引出部収納部８８となっている。即ちコイル部収納部８９とコイル引出部収納部８８とを合せてコイルスプリング収納部を形成している。この実施形態においては回転体８０の材質としてポリアミド樹脂を用いているが、他の各種樹脂材を用いても良い。 The main body portion 81 is formed in an outer shape that is rotatably housed in the housing portion 11 of the first case 10. The main body 81 has a substantially rectangular shape, but will be described in detail. The main body 81 has a circular shaft support hole 85 penetrating vertically, and the outer periphery of the opposite shaft support hole 85 not provided with the operation knob 83. Has an arcuate cutout 91 along the shaft support hole 85. In other words, as shown in FIG. 8A, the notch 91 of the rotating body 80 in which the slider 100 is insert-molded is circular so as to be separated from the sliding booklet 103 by the same dimension in accordance with the arc shape of the sliding booklet 103. It is formed in an arc shape. Further, on both side portions of the lower surface of the main body 81 projecting the operation knob 83, there are provided locking portions 87, 87 constituting a pair of downwardly projecting automatic return mechanisms. The shaft support hole 85 is formed in a size and shape that is rotatably inserted into the shaft portion 15 of the first case 10. Further, as shown in FIG. 5, the lower portion of the shaft support hole 85 becomes a coil portion accommodating portion 89 for enlarging its inner diameter and accommodating the coil portion 71 of the coil spring 70, and the operation knob 83 side from the coil portion accommodating portion 89. The surface is a coil lead-out portion storage portion 88 that is recessed in a fan shape. That is, the coil part storage part 89 and the coil lead-out part storage part 88 are combined to form a coil spring storage part. In this embodiment, a polyamide resin is used as the material of the rotating body 80, but other various resin materials may be used.

摺動子１００は前記回転体８０内に設置（内蔵）される基部１０１と、前記回転体８０の外周側面から突出して回転体８０の回転方向に向かって延びる摺動冊子１０３とを有して構成されている。基部１０１はその外形形状が前記回転体８０の本体部８１の外形形状と略一致するように略矩形状であり、突出した摺動冊子１０３に対向する側の下記する連結部１１１以外の外周辺は摺動冊子１０３の円弧形状に合せて摺動冊子１０３から同一寸法離間するように円弧状に形成されている。また基部１０１は中央に上下に貫通する円形の開口部１０５を有し、また開口部１０５の両側に樹脂貫通穴１０９を設けて構成されている。樹脂貫通穴１０９はその内部に回転体８０を構成する成形樹脂を入り込ませ、樹脂貫通穴１０９の上下の成形樹脂を一体に連結するためのものであり、摺動子１００の固定がより強固になる。開口部１０５の内径は、前記回転体８０の軸支孔８５の内径よりも少し大きく形成されている。摺動冊子１０３は基部１０１から半径方向外側に向けて突出する連結部１１１の先端からその両側に向けて円弧状に形成され、円弧の両側部分に一対ずつの冊子部１１３を設け、冊子部１１３中に下方向に湾曲変形する弾接部１１５を設けて構成されている。この実施形態では連結部１１１から見て摺動冊子１０３は左右対象になっている。摺動子１００の材質はこの実施形態ではリン青銅板の表面に銀めっきを施したものを用いているが、他の材質であっても良い。この摺動子１００は、円弧の両側部分に一対の冊子部１１３を設けたので、１トラック上の摺接パターン４１，４３に摺接でき、外形の小型化が図れる。また弾接部１１５の弾接力は、冊子部１１３の他に連結部１１１の部分も含んだ長さによって得られるので、その分長さが長くなり、冊子部１１３と連結部１１１全体の変形量を小さくでき、摺動子１００の高寿命化が図れる。 The slider 100 has a base 101 installed (built in) the rotating body 80 and a sliding booklet 103 that protrudes from the outer peripheral side surface of the rotating body 80 and extends in the rotating direction of the rotating body 80. It is configured. The base 101 has a substantially rectangular shape so that its outer shape substantially matches the outer shape of the main body 81 of the rotating body 80, and the outer periphery other than the connecting portion 111 described below on the side facing the protruding sliding booklet 103. Are formed in an arc shape so as to be spaced apart from the sliding booklet 103 by the same dimension in accordance with the arc shape of the sliding booklet 103. The base 101 has a circular opening 105 penetrating vertically in the center, and is provided with resin through holes 109 on both sides of the opening 105. The resin through-hole 109 is for allowing the molding resin constituting the rotating body 80 to enter therein and integrally connecting the upper and lower molding resins of the resin through-hole 109, and the slider 100 is more firmly fixed. Become. The inner diameter of the opening 105 is slightly larger than the inner diameter of the shaft support hole 85 of the rotating body 80. The sliding booklet 103 is formed in an arc shape from the front end of the connecting portion 111 protruding outward in the radial direction from the base 101 toward both sides thereof, and a pair of booklet portions 113 are provided on both side portions of the arc. An elastic contact portion 115 that is curved and deformed downward is provided therein. In this embodiment, the sliding booklet 103 is the right and left object as viewed from the connecting portion 111. In this embodiment, the material of the slider 100 is a phosphor bronze plate whose surface is silver-plated, but other materials may be used. Since the slider 100 is provided with a pair of booklet portions 113 on both side portions of the arc, the slider 100 can be slidably contacted with the slidable contact patterns 41 and 43 on one track, and the outer size can be reduced. Further, the elastic contact force of the elastic contact portion 115 is obtained by the length including the portion of the connecting portion 111 in addition to the booklet portion 113, so that the length is increased accordingly, and the deformation amount of the booklet portion 113 and the entire connecting portion 111 is increased. The life of the slider 100 can be increased.

そして実際には図４，図５に示すように、摺動子１００は、回転体８０内にインサート成形されるが、その際摺動子１００の基部１０１が回転体８０の本体部８１内に内蔵される。摺動子１００の摺動冊子１０３は本体部８１の外周を円弧状に囲むように位置する。図１２は回転体８０への摺動子１００のインサート成形方法を示す図（図８（ａ）のＣ−Ｃ線断面部分）である。同図を用いて具体的にインサート成形工程を説明すると、金型５００，５１０に設けた回転体８０成型用のキャビティーＣ１内に摺動子１００の基部１０１を設置する。その際金型５１０からキャビティーＣ１内に突出するピン５１３を前記摺動子１００の基部１０１に当接して支持する。基部１０１のピン５１３が当接した反対面側（金型５００のゲート５０３）から溶融成形樹脂を圧入してキャビティーＣ１内を満たす。このとき前記基部１０１に設けている樹脂貫通穴１０９には溶融成形樹脂が注入され、埋められる。溶融成形樹脂硬化後にキャビティーＣ１を取り外し、摺動子１００をインサート成形した回転体８０を取り出す。なお図７に示す軸支孔８５の両側にある一対の凹部８６は、前記摺動子１００を支持するピン５１３によって形成されるものである。 In practice, as shown in FIGS. 4 and 5, the slider 100 is insert-molded in the rotating body 80, and at this time, the base 101 of the slider 100 is placed in the main body 81 of the rotating body 80. Built in. The sliding booklet 103 of the slider 100 is positioned so as to surround the outer periphery of the main body 81 in an arc shape. FIG. 12 is a view (a cross-sectional portion taken along the line C-C in FIG. 8A) illustrating an insert molding method of the slider 100 to the rotating body 80. The insert molding process will be described in detail with reference to the figure. The base 101 of the slider 100 is installed in the cavity C1 for molding the rotating body 80 provided in the molds 500 and 510. At that time, a pin 513 protruding from the mold 510 into the cavity C 1 is in contact with and supported by the base 101 of the slider 100. A melt molding resin is press-fitted from the opposite surface side (gate 503 of the mold 500) with which the pin 513 of the base 101 abuts to fill the cavity C1. At this time, melt-molded resin is injected into the resin through-hole 109 provided in the base 101 and filled. After the melt-molding resin is cured, the cavity C1 is removed, and the rotating body 80 in which the slider 100 is insert-molded is taken out. A pair of recesses 86 on both sides of the shaft support hole 85 shown in FIG. 7 are formed by pins 513 that support the slider 100.

なお回転体８０は図８に示すように、操作つまみ８３と軸支孔８５の中心とを結ぶ線に対して線対称に形成されており、また摺動子１００は開口部１０５の中心と連結部１１１の中央部分とを結ぶ線に対して線対称に形成されている。そして前記操作つまみ８３と、摺動冊子１０３が回転体８０から突出する連結部１１１の部分とは、軸支孔８５の中心（即ち開口部１０５の中心）から見て１８０°反対側に位置し、従って摺動子１００をインサート成形した回転体８０は、操作つまみ８３と軸支孔８５の中心とを結ぶ線（即ち開口部１０５の中心と連結部１１１とを結ぶ線）に対して左右対称（線対称）の形状となっている。従って左右一対の弾接部１１５も左右対称なので、これら一対の弾接部１１５を回路基板４０の摺接パターン４１，４３に摺接させて回転した際、左右の回転力が同一になり、左右何れの方向へもスムーズな回転が行える。また基部１０１の外径寸法を前記回転体８０の本体部８１の外径寸法と略同じになるように大きく形成しているので、回転体８０に摺動子１００を強い強度で固定できる。なお回転体８０の一対の凹部８６と、摺動子１００の樹脂貫通穴１０９の位置は重ならないようにしている。 As shown in FIG. 8, the rotating body 80 is formed symmetrically with respect to a line connecting the operation knob 83 and the center of the shaft support hole 85, and the slider 100 is connected to the center of the opening 105. It is formed symmetrically with respect to a line connecting the central portion of the portion 111. The operation knob 83 and the portion of the connecting portion 111 from which the sliding booklet 103 protrudes from the rotating body 80 are located 180 ° opposite to each other when viewed from the center of the shaft support hole 85 (that is, the center of the opening 105). Therefore, the rotating body 80 in which the slider 100 is insert-molded is symmetrical with respect to a line connecting the operation knob 83 and the center of the shaft support hole 85 (that is, a line connecting the center of the opening 105 and the connecting portion 111). (Line symmetry). Accordingly, since the pair of left and right elastic contact portions 115 are also symmetrical, when the pair of elastic contact portions 115 are slidably contacted with the sliding contact patterns 41 and 43 of the circuit board 40, the left and right rotational forces become the same, Smooth rotation is possible in any direction. Further, since the outer diameter dimension of the base 101 is formed so as to be substantially the same as the outer diameter dimension of the main body 81 of the rotating body 80, the slider 100 can be fixed to the rotating body 80 with high strength. It should be noted that the position of the pair of recesses 86 of the rotating body 80 and the resin through-hole 109 of the slider 100 do not overlap.

第２ケース１２０は平板矩形状で前記第１ケース１０上を覆う外形寸法形状のケース本体部１２１と、ケース本体部１２１の対向する一対の外周辺から突出して下方向に直角に折り曲げられる複数本（４本）の取付部１２３とを具備して構成されている。第２ケース１２０の材質はこの実施形態ではステンレス板を用いているが、他の金属板、その他の各種材質のものを用いても良い。 The second case 120 is a flat plate-shaped case body portion 121 having an outer shape and covering the first case 10, and a plurality of second case 120 protruding from a pair of outer peripheries facing the case body portion 121 and bent downward at a right angle. (Four) attachment parts 123 are provided. In this embodiment, the second case 120 is made of a stainless steel plate, but other metal plates or other various materials may be used.

次にこの回転式電子部品１−１の組立方法を主として図４，図５を用いて説明する。まず第１ケース１０の収納部１１内にコイルスプリング７０を収納し、その際コイルスプリング７０のコイル部７１に第１ケース１０の軸部１５を挿入し、同時にコイルスプリング７０の両コイル引出部７３を第１ケース１０の当接部１４に当接する。次に摺動子１００を取り付けた回転体８０を前記収納部１１内に収納し、その際回転体８０の軸支孔８５内に前記軸部１５を回動自在に挿入し、同時に回転体８０の一対の係止部８７の内側（対向する側）にコイルスプリング７０の両コイル引出部７３を当接する。またこのとき回転体８０の操作つまみ８３は第１ケース１０の操作つまみ挿通部１３を通過してその外側に突出する。操作つまみ８３はコイルスプリング７０の両コイル引出部７３によって中立位置に保持される。このとき摺動子１００の両弾接部１１５，１１５はそれぞれ摺接パターン４１，４３の略中央に弾接している。そして回転体８０等を収納した第１ケース１０の上に第２ケース１２０を被せ、その際第２ケース１２０の各取付部１２３を第１ケース１０の外周側壁に沿わせ、４つの取付部１２３の内の３つの取付部１２３を第１ケース１０の下面側に折り曲げて矩形凹状の係止部３５に収納する。もう１つの取付部１２３はその下面が第１ケース１０の下面に一致するように外方向に向けて折り曲げ、アースの取り出し等に利用する。これによって回転式電子部品１−１が完成する。 Next, a method for assembling the rotary electronic component 1-1 will be described mainly with reference to FIGS. First, the coil spring 70 is housed in the housing portion 11 of the first case 10, and at that time, the shaft portion 15 of the first case 10 is inserted into the coil portion 71 of the coil spring 70, and at the same time, both coil lead-out portions 73 of the coil spring 70. Is brought into contact with the contact portion 14 of the first case 10. Next, the rotating body 80 to which the slider 100 is attached is housed in the housing portion 11, and at that time, the shaft portion 15 is rotatably inserted into the shaft support hole 85 of the rotating body 80. The coil lead-out portions 73 of the coil spring 70 are brought into contact with the inside (opposite side) of the pair of locking portions 87. At this time, the operation knob 83 of the rotating body 80 passes through the operation knob insertion portion 13 of the first case 10 and protrudes to the outside. The operation knob 83 is held in a neutral position by both coil lead-out portions 73 of the coil spring 70. At this time, both elastic contact portions 115 and 115 of the slider 100 are in elastic contact with the approximate center of the sliding contact patterns 41 and 43, respectively. Then, the second case 120 is put on the first case 10 in which the rotating body 80 and the like are accommodated. At this time, the mounting portions 123 of the second case 120 are arranged along the outer peripheral side wall of the first case 10, and the four mounting portions 123. The three attachment portions 123 are folded to the lower surface side of the first case 10 and stored in the rectangular concave locking portion 35. The other attachment portion 123 is bent outward so that the lower surface thereof coincides with the lower surface of the first case 10, and is used for taking out the ground. Thereby, the rotary electronic component 1-1 is completed.

そしてこの回転式電子部品１−１は、例えば図９に示す回路基板２００上に載置され、回路基板２００に設けた各端子パターン２０１及びアースパターン２０５に回転式電子部品１−１の前記各実装面５３，５９，６３及び第１ケース１０の外方向に向けて折り曲げた１つの取付部１２３の先端部分（アースパターン２０５に対向する面、実装面）を半田付け等によって取り付ける。２０３，２０３は第１ケース１０の位置決め突起２９，２９を挿入して位置決めする位置決め穴である。そして例えば上記第２ケース１２０のケース本体部１２１上には図示しない回転つまみが回転自在に設置され、この回転つまみの下部から突出する係止部を前記操作つまみ８３に係止することで回転つまみの回転によって操作つまみ８３を回動するようにする。なお操作つまみ８３の先端部分は、根元部分よりも上下に厚みを厚く形成し、これによってこの操作つまみ８３の先端部分に図示しない回転つまみの係止部を係止した際の強度を強くしている。ところで操作つまみ８３を突出した側の外周側面ではこの操作つまみ８３が可動し、また上述のように操作つまみ８３の厚みが厚いので、この外周側面に面実装用の実装面５３，５９，６３を設置するのは困難である。そこでこの実施形態では、各実装面５３，５９，６３、即ち端子５１，５７，６１を回転式電子部品１−１の操作つまみ８３を突出する外周側面の両側の外周側面に配置したのである。なお上記以外の外周側面に端子５１，５７，６１を設置しても良い。 The rotary electronic component 1-1 is placed on, for example, the circuit board 200 shown in FIG. 9, and the terminal pattern 201 and the ground pattern 205 provided on the circuit board 200 are connected to the rotary electronic component 1-1. The mounting surfaces 53, 59, 63 and the tip portion of one mounting portion 123 (surface facing the ground pattern 205, mounting surface) bent toward the outside of the first case 10 are attached by soldering or the like. Reference numerals 203 and 203 denote positioning holes for inserting and positioning the positioning protrusions 29 and 29 of the first case 10. For example, a rotary knob (not shown) is rotatably installed on the case main body 121 of the second case 120, and a rotary knob protruding from the lower part of the rotary knob is locked to the operation knob 83 to lock the rotary knob. The operation knob 83 is rotated by the rotation of. Note that the tip of the operation knob 83 is formed to be thicker in the upper and lower portions than the base portion, thereby increasing the strength when a locking portion of a rotary knob (not shown) is locked to the tip of the operation knob 83. Yes. By the way, the operation knob 83 is movable on the outer peripheral side from which the operation knob 83 protrudes, and the thickness of the operation knob 83 is thick as described above. Therefore, mounting surfaces 53, 59, 63 for surface mounting are provided on the outer peripheral side surface. It is difficult to install. Therefore, in this embodiment, the mounting surfaces 53, 59, 63, that is, the terminals 51, 57, 61 are arranged on the outer peripheral side surfaces on both sides of the outer peripheral side surface from which the operation knob 83 of the rotary electronic component 1-1 is projected. In addition, you may install the terminals 51, 57, 61 on the outer peripheral side other than the above.

次にこの回転式電子部品１−１の動作を説明する。まず例えば上述のように操作つまみ８３に係止されて操作つまみ８３と一体に回転する回転つまみを回転すると、回転つまみと共に回転体８０及びこれに取り付けられている摺動子１００が回転し、摺動子１００の弾接部１１５が摺接パターン４１，４３上を摺動することで、各端子板５０，５５，６０間の電気的出力（この実施形態の場合は抵抗値）が変化する。回転体８０の左右への回転は、その回転力が前述のように同一なので、スムーズに行える。前記回転体８０が回転した際、前記コイルスプリング７０の一方のコイル引出部７３が回転体８０の一方の係止部８７によって押圧され、その際もう一方のコイル引出部７３は第１ケース１０の当接部１４に当接したままなのでコイルスプリング７０のコイル部７１は絞られ、弾発力が増加し、前記回転体８０を回転させる力を解除すると回転体８０は元の中立位置に自動復帰し、その電気的出力も元の状態に戻る。回転体８０の係止部８７は第１ケース１０の係止部挿入部２１にその先端が挿入されており、従って回転体８０を回転した際、係止部挿入部２１内を係止部８７が移動することとなるが、これによってコイル引出部７３は係止部８７から外れることがなくなる。 Next, the operation of the rotary electronic component 1-1 will be described. First, for example, when the rotary knob that is locked to the operation knob 83 and rotates together with the operation knob 83 is rotated as described above, the rotating body 80 and the slider 100 attached thereto rotate together with the rotary knob, and the sliding knob 100 rotates. As the elastic contact portion 115 of the moving element 100 slides on the sliding contact patterns 41 and 43, the electrical output (resistance value in this embodiment) between the terminal boards 50, 55 and 60 changes. The rotating body 80 can be smoothly rotated to the left and right because the rotational force is the same as described above. When the rotary body 80 rotates, one coil lead-out portion 73 of the coil spring 70 is pressed by one locking portion 87 of the rotary body 80, and at this time, the other coil lead-out portion 73 is pushed by the first case 10. Since the coil portion 71 of the coil spring 70 is squeezed because it remains in contact with the contact portion 14, the resilience increases, and when the force that rotates the rotating body 80 is released, the rotating body 80 automatically returns to the original neutral position. And the electrical output also returns to the original state. The distal end of the locking portion 87 of the rotating body 80 is inserted into the locking portion insertion portion 21 of the first case 10. Therefore, when the rotating body 80 is rotated, the locking portion 87 is moved inside the locking portion insertion portion 21. The coil lead-out portion 73 is not detached from the locking portion 87.

図１０は本発明の第２実施形態にかかる回転式電子部品１−２を上側から見た斜視図、図１１は回転式電子部品１−２を上側から見た分解斜視図である。両図に示す回転式電子部品１−２において、前記図１〜図９に示す回転式電子部品１−１と同一又は相当部分には同一符号を付す。なお以下で説明する事項以外の事項については、前記図１〜図９に示す実施形態と同じである。 10 is a perspective view of the rotary electronic component 1-2 according to the second embodiment of the present invention as viewed from above, and FIG. 11 is an exploded perspective view of the rotary electronic component 1-2 as viewed from above. In the rotary electronic component 1-2 shown in both drawings, the same or corresponding parts as those of the rotary electronic component 1-1 shown in FIGS. Items other than those described below are the same as those in the embodiment shown in FIGS.

この回転式電子部品１−２において前記回転式電子部品１と相違する点は、回転体８０の操作つまみ８３Ｂを、第１実施形態のように本体部８１の外周から半径方向外側に向かって突出させる代りに、本体部８１の上面側（本体部８１の回転軸に平行で回路基板４０から離れる方向）に柱状に突出する操作つまみ８３Ｂを設け、これに伴なって、第２ケース１２０のケース本体部１２１の前記操作つまみ８３Ｂに対向する位置に、操作つまみ８３Ｂの回動範囲にわたって円弧状に貫通するつまみ挿通孔１２５を形成し、同時に不要となった第１ケース１０のつまみ挿通部１３を省略して外周側壁で覆った点である。なおこの回転式電子部品１−２の組立方法及び他の回路基板への面実装方法及び操作方法は何れも前記回転式電子部品１−１と同様である。このように回転式電子部品１−２を構成すれば、操作つまみ８３Ｂを回転式電子部品１−２の上面側から操作でき、また回転式電子部品１−２の設置面積の小型化が図れる。 The difference between the rotary electronic component 1-2 and the rotary electronic component 1 is that the operation knob 83B of the rotating body 80 protrudes radially outward from the outer periphery of the main body 81 as in the first embodiment. Instead of this, an operation knob 83B protruding in a columnar shape is provided on the upper surface side of the main body 81 (in a direction parallel to the rotation axis of the main body 81 and away from the circuit board 40), and accordingly, the case of the second case 120 is provided. A knob insertion hole 125 penetrating in an arc shape over the rotation range of the operation knob 83B is formed at a position facing the operation knob 83B of the main body 121, and at the same time, the knob insertion section 13 of the first case 10 that is no longer necessary is provided. It is omitted and covered with the outer peripheral side wall. The assembly method of the rotary electronic component 1-2, the surface mounting method to other circuit boards, and the operation method are all the same as those of the rotary electronic component 1-1. If the rotary electronic component 1-2 is configured in this manner, the operation knob 83B can be operated from the upper surface side of the rotary electronic component 1-2, and the installation area of the rotary electronic component 1-2 can be reduced.

なお上記各実施形態では第１ケース１０側に収納部１１や回路基板４０等を取り付けたが、逆に第２ケース１２０側に収納部を設けても良く、場合によっては第２ケース１２０側に回路基板等を取り付けても良い。また上記実施形態では回転体８０を回動自在に軸支するため、回転体８０に設けた軸支孔８５に第１ケース１０に設けた軸部１５を回動自在に挿入したが、軸部１５は第２ケース１２０に設けても良い。また逆に回転体８０に軸部を設け、第１ケース１０および／又は第２ケース１２０に軸支孔を設けてこれを回動自在に軸支しても良い。 In each of the above embodiments, the storage unit 11 and the circuit board 40 are attached to the first case 10 side. However, a storage unit may be provided on the second case 120 side. A circuit board or the like may be attached. In the above embodiment, the shaft 15 provided in the first case 10 is rotatably inserted in the shaft support hole 85 provided in the rotator 80 in order to pivotally support the rotator 80. 15 may be provided in the second case 120. Conversely, a shaft portion may be provided in the rotating body 80, and a shaft support hole may be provided in the first case 10 and / or the second case 120 so as to be pivotally supported.

以上説明したように、本発明によれば、回転体８０に取り付けられる摺動子１００が、回転体８０内に設置される基部１０１と、回転体８０の外周側面から半径方向外方に向かって突出する摺動冊子１０３とを有して構成されている。これによって摺動子１００を回転体８０の厚みの中に包含でき、その分この回転体８０を装着する回転式電子部品１−１，１−２の厚みの薄型化が図れる。また回転体８０の外周側面から突出した摺動冊子１０３は、回転体８０の回転方向に沿うように湾曲している。これによって外周側面から摺動冊子１０３を突出する構造の回転体８０であっても、その外形を小型化できる。また摺動子１００の基部１０１は、回転体８０の内部にインサート成形されている。これによって摺動子１００が確実に回転体８０に固定できる。 As described above, according to the present invention, the slider 100 attached to the rotator 80 has the base 101 installed in the rotator 80 and the outer peripheral side surface of the rotator 80 outward in the radial direction. It has a sliding booklet 103 that protrudes. Accordingly, the slider 100 can be included in the thickness of the rotating body 80, and the thickness of the rotary electronic components 1-1 and 1-2 on which the rotating body 80 is mounted can be reduced accordingly. The sliding booklet 103 protruding from the outer peripheral side surface of the rotating body 80 is curved so as to follow the rotating direction of the rotating body 80. Accordingly, the outer shape of the rotating body 80 having a structure in which the sliding booklet 103 protrudes from the outer peripheral side surface can be reduced in size. The base 101 of the slider 100 is insert-molded inside the rotating body 80. As a result, the slider 100 can be reliably fixed to the rotating body 80.

また本発明は、第１，第２ケース１０，１２０と、第１ケース１０に設けた収納部１１内に回動自在に収納される回転体８０と、回転体８０と第１ケース１０の間に設置され回転体８０の回転によってその電気的出力を変化する電気的機能部とを具備する回転式電子部品１−１，１−２であって、回転体８０として前記本願発明に係る回転体８０を用い、また前記電気的機能部は回転体８０側に設置される摺動子１００と、第１ケース１０側に設置される摺接パターン４１，４３とを具備して構成され、一方回転体８０は、第１ケース１０に設けた軸部１５を回転体８０に設けた軸支孔８５に回動自在に挿入することで回動自在に軸支されて構成されている。このように本発明に係る回転体８０を用いることで、回転式電子部品１−１，１−２の厚みの薄型化が図れる。 The present invention also includes first and second cases 10 and 120, a rotating body 80 that is rotatably housed in a housing portion 11 provided in the first case 10, and between the rotating body 80 and the first case 10. A rotary electronic component 1-1, 1-2 having an electrical function unit that changes its electrical output by rotation of the rotary body 80, and the rotary body according to the present invention is the rotary body 80. 80, and the electrical function unit includes a slider 100 installed on the rotating body 80 side and sliding contact patterns 41 and 43 installed on the first case 10 side. The body 80 is configured to be pivotally supported by rotatably inserting the shaft portion 15 provided in the first case 10 into a shaft support hole 85 provided in the rotating body 80. Thus, by using the rotary body 80 according to the present invention, the thickness of the rotary electronic components 1-1 and 1-2 can be reduced.

また上記回転式電子部品１−１，１−２は、線材をコイル状に巻き回してなるコイル部７１及びコイル部７１の両側から引き出されるコイル引出部７３とを有するコイルスプリング７０を具備し、第１ケース１０に設けた軸部１５にコイルスプリング７０のコイル部７１を挿入し、コイル部７１両側のコイル引出部７３を回転体８０に設けた一対の係止部８７に係止すると共に第１ケース１０に設けた一対の当接部１４に係止し、これによって回転体８０の自動復帰機構を構成し、さらに第１ケース１０底面の係止部８７に対向する部分に係止部８７の移動範囲にわたる係止部挿入部２１を設けた構成となっている。即ち第１ケース１０底面に設けた係止部挿入部２１に、回転体８０に設けた係止部８７を挿入するので、コイルスプリング７０のコイル引出部７３が係止部８７から外れる恐れを確実に防止できると同時に、回転体８０を第１ケース１０底面に接近して設置でき、回転式電子部品１−１，１−２の薄型化が図れる。 The rotary electronic components 1-1 and 1-2 include a coil spring 70 having a coil part 71 formed by winding a wire in a coil shape and a coil lead-out part 73 drawn from both sides of the coil part 71, The coil portion 71 of the coil spring 70 is inserted into the shaft portion 15 provided in the first case 10, and the coil lead-out portions 73 on both sides of the coil portion 71 are locked to the pair of locking portions 87 provided on the rotating body 80 and the first The pair of abutting portions 14 provided in one case 10 are engaged with each other, thereby constituting an automatic return mechanism of the rotating body 80, and further, the engaging portion 87 is provided at a portion facing the engaging portion 87 on the bottom surface of the first case 10. It is the structure which provided the latching | locking part insertion part 21 over the movement range. In other words, since the locking portion 87 provided on the rotating body 80 is inserted into the locking portion insertion portion 21 provided on the bottom surface of the first case 10, it is ensured that the coil drawing portion 73 of the coil spring 70 may come off from the locking portion 87. At the same time, the rotating body 80 can be installed close to the bottom surface of the first case 10, and the rotating electronic components 1-1 and 1-2 can be thinned.

また上記回転式電子部品１−１，１−２では、摺接パターン４１，４３は回路基板４０上に形成され、且つこの回路基板４０には摺接パターン４１，４３に接続される端子板当接部４５，４７，４９が形成され、回路基板４０は第１ケース１０内にその摺接パターン４１，４３の部分が収納部１１の底面に露出するとともに、端子板当接部４５，４７，４９に端子板５０，５５，６０を当接した状態で第１ケース１０内にインサート成形され、各端子板５０，５５，６０から第１ケース１０の外部に突出する端子５１，５７，６１の先端部分を同一面としてこの面を実装面５３，５９，６３とした。これによって回転式電子部品１−１，１−２を容易に面実装構造にすることができる。 In the rotary electronic components 1-1 and 1-2, the sliding contact patterns 41 and 43 are formed on the circuit board 40, and the circuit board 40 has terminal plate contacts connected to the sliding contact patterns 41 and 43. The contact portions 45, 47, and 49 are formed, and the circuit board 40 has the sliding contact patterns 41 and 43 exposed to the bottom surface of the storage portion 11 in the first case 10 and the terminal plate contact portions 45, 47, and 47. 49, the terminal plates 50, 55, and 60 are inserted into the first case 10 with the terminal plates 50, 55, and 60 being in contact with each other, and the terminals 51, 57, and 61 protruding from the terminal plates 50, 55, and 60 to the outside of the first case 10 are formed. The front end portion was the same surface, and this surface was designated as mounting surfaces 53, 59, 63. Thereby, the rotary electronic components 1-1 and 1-2 can be easily formed into a surface mounting structure.

また本発明における回転体８０の製造方法は、基部１０１と基部１０１の外周から外方に向かって突出する摺動冊子１０３とを具備する摺動子１００を用意し、金型５００，５１０に設けた回転体成型用のキャビティーＣ１内に摺動子１００の基部１０１を設置し、その際金型５１０からキャビティーＣ１内に突出するピン５１３を摺動子１００の基部１０１に当接して支持し、基部１０１のピン５１３が当接した反対面側から溶融成形樹脂を圧入してキャビティーＣ１内を満たし、溶融成形樹脂硬化後にキャビティーＣ１を取り外すことによって行った。これによって例え摺動子１００が薄くて溶融成形樹脂の注入圧力によって変形する恐れがある場合でも、ピン５１３が摺動子１００の基部１０１を支えることで、前記変形を確実に防止できる。また本発明では、キャビティーＣ１内に溶融成形樹脂を圧入する際、基部１０１に設けられている樹脂貫通穴１０９に溶融成形樹脂を注入するので、回転体８０に対する摺動子１００の固定がより確実になる。 In the method of manufacturing the rotating body 80 according to the present invention, the slider 100 including the base 101 and the sliding booklet 103 protruding outward from the outer periphery of the base 101 is prepared and provided in the molds 500 and 510. The base portion 101 of the slider 100 is placed in the cavity C1 for molding the rotating body, and a pin 513 protruding from the mold 510 into the cavity C1 is brought into contact with and supported by the base portion 101 of the slider 100. Then, the melt molding resin was press-fitted from the opposite surface side where the pin 513 of the base 101 abuts to fill the cavity C1, and the cavity C1 was removed after the melt molding resin was cured. Thus, even when the slider 100 is thin and may be deformed by the injection pressure of the melt-molded resin, the deformation can be reliably prevented by the pins 513 supporting the base portion 101 of the slider 100. Further, in the present invention, when the molten molding resin is press-fitted into the cavity C1, the molten molding resin is injected into the resin through hole 109 provided in the base 101, so that the slider 100 can be more securely fixed to the rotating body 80. Be certain.

以上本発明の実施形態を説明したが、本発明は上記実施形態に限定されるものではなく、特許請求の範囲、及び明細書と図面に記載された技術的思想の範囲内において種々の変形が可能である。なお直接明細書及び図面に記載のない何れの形状・構造・材質であっても、本願発明の作用・効果を奏する以上、本願発明の技術的思想の範囲内である。例えば上記実施形態では第１ケース１０と第２ケース１２０とによってケースを構成したが、何れか一方のみでケースを構成しても良い。また上記実施形態の回転式電子部品１−１，１−２は回転体８０の回転によって抵抗値が変化する回転式可変抵抗器であるが、回転体８０の回転によってスイッチのオンオフが変化する回転式スイッチで構成しても良い。要は回転体とケースの間に設置され回転体の回転によってその電気的出力を変化する電気的機能部を具備する回転式電子部品であれば良い。なお場合によっては摺動子１００の基部１０１を回転体８０の内部にインサート成形以外の方法によって取り付けても良い。また上記実施形態では摺接パターン４１，４３を回路基板４０上に形成したが、摺接パターン４１，４３は金属板等、他の各種構造で構成しても良い。また回路基板４０は第１ケース１０にインサート成形以外の方法によって取り付けても良い。また上記実施形態では回転式電子部品１−１，１−２を面実装構造とするため、各端子５１，５７，６１の実装面５３，５９，６３の下面を第１ケース１０の下面と同一面に位置させたが、必ずしも実装面５３，５９，６３の下面を第１ケース１０の下面と同一面に位置させる必要はなく、要は実装面５３，５９，６３の下面を同一面に位置させればよい。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. It should be noted that any shape, structure, and material not directly described in the specification and drawings are within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are exhibited. For example, in the above embodiment, the case is constituted by the first case 10 and the second case 120, but the case may be constituted by only one of them. The rotary electronic components 1-1 and 1-2 of the above embodiment are rotary variable resistors whose resistance values change with the rotation of the rotating body 80. You may comprise by a type switch. In short, any rotary electronic component may be used as long as it is provided between the rotating body and the case and has an electrical function unit that changes its electrical output by the rotation of the rotating body. In some cases, the base 101 of the slider 100 may be attached to the inside of the rotating body 80 by a method other than insert molding. In the above embodiment, the slidable contact patterns 41 and 43 are formed on the circuit board 40. However, the slidable contact patterns 41 and 43 may be formed of various other structures such as a metal plate. The circuit board 40 may be attached to the first case 10 by a method other than insert molding. In the above embodiment, since the rotary electronic components 1-1 and 1-2 have a surface mounting structure, the lower surfaces of the mounting surfaces 53, 59 and 63 of the terminals 51, 57 and 61 are the same as the lower surface of the first case 10. However, the lower surfaces of the mounting surfaces 53, 59, and 63 are not necessarily positioned on the same surface as the lower surface of the first case 10. In short, the lower surfaces of the mounting surfaces 53, 59, and 63 are positioned on the same surface. You can do it.

回転式電子部品１−１を上側から見た斜視図である。It is the perspective view which looked at the rotary electronic component 1-1 from the upper side. 回転式電子部品１−１を下側から見た斜視図である。It is the perspective view which looked at the rotary electronic component 1-1 from the lower side. 図１のＡ−Ａ断面斜視図である。It is an AA cross-sectional perspective view of FIG. 回転式電子部品１−１を上側から見た分解斜視図である。It is the disassembled perspective view which looked at the rotary electronic component 1-1 from the upper side. 回転式電子部品１−１を下側から見た分解斜視図である。It is the disassembled perspective view which looked at the rotary electronic component 1-1 from the lower side. 第１ケース１０と回路基板４０と端子板５０，５５，６０とを分離してそれぞれを別々に示す分解斜視図である。It is a disassembled perspective view which isolate | separates 1st case 10, the circuit board 40, and the terminal boards 50, 55, 60, and shows each separately. 回転体８０と摺動子１００とを分離してそれぞれを別々に示す分解斜視図である。It is a disassembled perspective view which isolate | separates the rotary body 80 and the slider 100, and shows each separately. 図８（ａ）は摺動子１００をインサート成形した回転体８０の平面図、図８（ｂ）は摺動子１００単体の平面図、図８（ｃ）は回転体８０単体の平面図である。8A is a plan view of a rotating body 80 in which the slider 100 is insert-molded, FIG. 8B is a plan view of the slider 100 alone, and FIG. 8C is a plan view of the rotor 80 alone. is there. 回路基板２００に回転式電子部品１−１を取り付ける状態を示す斜視図である。It is a perspective view which shows the state which attaches the rotary electronic component 1-1 to the circuit board 200. FIG. 回転式電子部品１−２を上側から見た斜視図である。It is the perspective view which looked at the rotary electronic component 1-2 from the upper side. 回転式電子部品１−２を上側から見た分解斜視図である。It is the disassembled perspective view which looked at the rotary electronic component 1-2 from the upper side. 回転体８０への摺動子１００のインサート成形方法を示す図である。It is a figure which shows the insert molding method of the slider 100 to the rotary body 80. FIG.

Explanation of symbols

１−１回転式電子部品
１０第１ケース（ケース）
１１収納部
１４当接部（自動復帰機構）
１５軸部
２１係止部挿入部
４０回路基板
４１，４３摺接パターン（電気的機能部）
４５，４７，４９端子板当接部
５０，５５，６０端子板
５１，５７，６１端子
５３，５９，６３実装面
７０コイルスプリング（弾発手段、自動復帰機構）
７１コイル部
７３コイル引出部
８０回転体
８５軸支孔
８７係止部（自動復帰機構）
１００摺動子（電気的機能部）
１０１基部
１０３摺動冊子
１２０第２ケース（ケース）
１−２回転式電子部品
８３Ｂ操作つまみ 1-1 Rotary electronic component 10 First case (case)
11 Storage part 14 Contact part (automatic return mechanism)
15 Shaft part 21 Locking part insertion part 40 Circuit board 41, 43 Sliding contact pattern (electrical function part)
45, 47, 49 Terminal plate abutting portions 50, 55, 60 Terminal plates 51, 57, 61 Terminals 53, 59, 63 Mounting surface 70 Coil spring (ejection means, automatic return mechanism)
71 Coil part 73 Coil drawing part 80 Rotating body 85 Shaft support hole 87 Locking part (automatic return mechanism)
100 Slider (electrical function part)
101 Base 103 Sliding booklet 120 Second case (case)
1-2 Rotary electronic component 83B Operation knob

Claims

In a rotating body that is rotatably housed in a housing portion provided in the case and has a slider attached thereto,
The slider includes a base installed in the rotating body, and a sliding booklet that protrudes radially outward from an outer peripheral side surface of the rotating body. body.

The rotating body according to claim 1, wherein the sliding booklet protruding from the outer peripheral side surface of the rotating body is curved so as to follow the rotation direction of the rotating body.

The rotating body according to claim 1 or 2, wherein a base portion of the slider is insert-molded inside the rotating body.

A case, a rotating body that is rotatably housed in a housing provided in the case, and an electrical function unit that is installed between the rotating body and the case and that changes its electrical output by the rotation of the rotating body. In rotating electronic parts
The rotator is the rotator according to claim 1, 2 or 3,
The electrical functional unit is configured to include the slider installed on the rotating body side and a sliding contact pattern installed on the case side,
On the other hand, the rotating body is pivotally supported by rotatably inserting a shaft portion provided on either the case or the rotating body into a shaft support hole provided on the other. Rotary electronic component.

A coil spring having a coil part formed by winding a wire in a coil shape and a coil lead part drawn from both sides of the coil part;
The shaft portion provided on either the case or the rotating body is inserted into the coil portion of the coil spring, and the coil lead-out portions on both sides of the coil portion are locked to a pair of locking portions provided on the rotating body and the case. Is engaged with a pair of abutting portions provided in the above, thereby constituting an automatic return mechanism of the rotating body,
5. The rotary electronic component according to claim 4, further comprising a locking portion insertion portion extending over a range of movement of the locking portion at a portion of the bottom surface of the case facing the locking portion.

The sliding contact pattern is formed on a circuit board, and a terminal board contact portion connected to the sliding contact pattern is formed on the circuit board,
The circuit board is insert-molded in the case in a state where a portion of the sliding contact pattern is exposed to the bottom surface of the storage portion in the case and the terminal plate is in contact with the terminal plate contact portion. 6. The rotary electronic component according to claim 4, wherein a tip end portion of a terminal projecting to the outside of the case is the same surface and this surface is a mounting surface.

In a method of manufacturing a rotating body that is rotatably stored in a storage portion provided in a case and has a slider attached thereto,
Prepare a slider comprising a base and a sliding booklet protruding outward from the outer periphery of the base,
The base of the slider is installed in a cavity for molding a rotating body provided in a mold, and a pin protruding from the mold into the cavity is supported by contacting the base of the slider, Fill the cavity by press-fitting melt molding resin from the opposite surface side where the pin of the base abuts,
A method for producing a rotating body, wherein the cavity is removed after the melt-molded resin is cured.

8. The method of manufacturing a rotating body according to claim 7, wherein when the molten molding resin is press-fitted into the cavity, the molten molding resin is injected into a resin through hole provided in the base portion.