JP3380680B2 - Electrical component - Google Patents
Electrical componentInfo
- Publication number
- JP3380680B2 JP3380680B2 JP13958696A JP13958696A JP3380680B2 JP 3380680 B2 JP3380680 B2 JP 3380680B2 JP 13958696 A JP13958696 A JP 13958696A JP 13958696 A JP13958696 A JP 13958696A JP 3380680 B2 JP3380680 B2 JP 3380680B2
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- mounting plate
- rotating body
- opening
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/02—Housing; Enclosing; Embedding; Filling the housing or enclosure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/26—Adjustable resistors resistive element moving
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
- H01C10/34—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path the contact or the associated conducting structure riding on collector formed as a ring or portion thereof
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
- Details Of Resistors (AREA)
Description
【発明の属する技術分野】本発明は、各種オーディオ機
器や通信機等に使用される電気部品に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electric parts used in various audio equipments, communication devices and the like.
【0001】[0001]
【従来の技術】従来の電気部品について、例えば特開昭
63ー40301号公報に開示されている回転型可変抵
抗器を例に説明する。従来の電気部品、例えば回転型可
変抵抗器を図7ないし図9を参照して説明する。図7に
おいて成形樹脂製の円形状ツマミ1と、その中心部には
円形穴1aを有し、下面の外周近くには細かい円環部1
bを有している。また、該円環部1bの外周側には円弧
状の溝1dがストッパ部1eを備えて形成されている。
また、該円環部1bの内側には、図9に示すような絶縁
材料からなる円形の抵抗基板2が、その中心部の円形穴
2aを対応させて配置されている。また、このとき抵抗
基板2はツマミ1にガタなく位置決めして装着されてい
る。そして、該抵抗基板2の他方側の面には抵抗印刷層
2cと円形導電体印刷層層2d・2eが、抵抗基板2の
円形穴2aに対して同心円状に配されている。2. Description of the Related Art A conventional electric component will be described with reference to a rotary variable resistor disclosed in, for example, Japanese Patent Laid-Open No. 63-40301. A conventional electric component, for example, a rotary variable resistor will be described with reference to FIGS. In FIG. 7, a circular knob 1 made of molded resin and a circular hole 1a in its center are provided, and a fine annular portion 1 is provided near the outer periphery of the lower surface.
b. An arcuate groove 1d is formed on the outer peripheral side of the annular portion 1b with a stopper portion 1e.
Further, a circular resistance substrate 2 made of an insulating material as shown in FIG. 9 is arranged inside the annular portion 1b with a circular hole 2a in the center thereof correspondingly. At this time, the resistance substrate 2 is positioned and mounted on the knob 1 without play. On the other surface of the resistance substrate 2, a resistance printing layer 2c and circular conductor printing layer layers 2d and 2e are arranged concentrically with respect to the circular hole 2a of the resistance substrate 2.
【0002】また、絶縁性樹脂からなる基体部3の中心
には前記ツマミ1の円形穴1aを支持する段付支柱3a
を有し、前記ツマミ1を回転可能に嵌合支持し、その上
方に突き出た前記段付支柱3aの先端にスペーサ4を挿
入嵌合し、熱カシメ等の工法により前記段付支柱3aの
先端を押し広げてツマミ1を抜け止め保持している。ま
た、前記基体部3の突起3bは、ツマミ1の円弧状の溝
1dに嵌合し、且つストッパ部1eと当接してツマミ1
の回転角度を規制するストッパの役目をする。また、前
記基体部3の平板部には、弾性金属からなり、前記抵抗
基板2の他方側の面の抵抗印刷層2cおよび円形導電体
印刷層2d・2eに弾接する接点部5a・5b・5cを
有する3個の独立した弾性接点体5が、開口3cの内部
に露出して形成されている。そして前記接点部5a・5
b・5cの根元部部分を基体部3の内部にインサート成
形し、基体部3の外部には外部接続用端子部5d・5e
・5fを延長して形成している。Further, a stepped column 3a for supporting the circular hole 1a of the knob 1 is provided at the center of the base portion 3 made of an insulating resin.
And rotatably fitting and supporting the knob 1, and inserting and fitting a spacer 4 into the tip of the stepped support column 3a protruding above the knob 1, and by using a method such as thermal caulking, the tip of the stepped support column 3a. Is held open to hold knob 1 in place. Further, the protrusion 3b of the base portion 3 is fitted into the arc-shaped groove 1d of the knob 1 and is brought into contact with the stopper portion 1e so as to come into contact with the knob 1
Serves as a stopper that regulates the rotation angle of. Further, the flat plate portion of the base portion 3 is made of an elastic metal, and contact portions 5a, 5b, 5c which are elastically contacted with the resistance printing layer 2c and the circular conductor printing layers 2d, 2e on the other surface of the resistance substrate 2. Three independent elastic contact bodies 5 having the above are formed so as to be exposed inside the opening 3c. And the contact points 5a and 5
The base portions of b and 5c are insert-molded inside the base portion 3, and external connection terminal portions 5d and 5e are provided outside the base portion 3.
・ It is formed by extending 5f.
【0003】このような構成の従来の電気部品では、前
記接点部5a・5b・5cを前記基体部3の内部にイン
サート成形するだけでは、前記接点部5a・5b・5c
を前記抵抗基板2の印刷抵抗層2cおよび円形導電体印
刷層2d・2eに弾接させることができない。そのため
に、前記基体部3の内部にインサート成形して取り付け
た前記接点部5a・5b・5cの周辺に角状の開口3c
を設けて、該開口3cを利用して前記接点部5a・5b
・5cを上方に所定の角度をもって折り曲げている。し
かし、基体部3に開口3cがあると、該開口3cからフ
ラックスやゴミ等が電気部品の内部に侵入して、電気部
品の性能を害するという問題があった。In the conventional electric component having such a structure, the contact parts 5a, 5b, 5c are simply insert-molded inside the base part 3 so that the contact parts 5a, 5b, 5c are formed.
Cannot be elastically contacted with the printed resistance layer 2c and the circular conductor printed layers 2d and 2e of the resistance substrate 2. Therefore, angular openings 3c are formed around the contact portions 5a, 5b, 5c which are insert-molded and attached inside the base portion 3.
Is provided, and the contact portions 5a and 5b are formed by utilizing the opening 3c.
・ 5c is bent upward at a predetermined angle. However, if the base portion 3 has the opening 3c, there is a problem that flux, dust, and the like enter the inside of the electric component through the opening 3c to impair the performance of the electric component.
【0004】また、絶縁樹脂製の基体部3の中央部に、
該基体部3と一体化されて段付支柱3aが形成されて、
前記ツマミ1を熱カシメ等の工法で組み合わせている。
そのために、電気部品を図示しないプリント基板等に半
田付け等で取り付けようとすると、半田の熱によって段
付支柱3aが熱変形する問題があった。また、段付支柱
3aの先端を熱カシメ等の工法でツマミ1を組み合わせ
ているので、プリント基板への半田付けをディッピング
装置等の機械で行うと、ディッピング装置内部の雰囲気
温度が高温になっているので、特に前記熱カシメ部分が
熱変形する問題があった。そのために従来の電気部品に
おいては、ツマミ1の回転トルクが変化する問題があっ
た。Further, in the central portion of the base member 3 made of insulating resin,
The stepped support pillar 3a is formed integrally with the base portion 3,
The knob 1 is combined by a method such as heat caulking.
Therefore, when an electric component is attached to a printed circuit board or the like (not shown) by soldering or the like, there is a problem that the stepped column 3a is thermally deformed by the heat of the solder. Further, since the knob 1 is combined at the tip of the stepped column 3a by a method such as thermal caulking, when the soldering to the printed circuit board is performed by a machine such as a dipping device, the atmospheric temperature inside the dipping device becomes high. Therefore, there is a problem that the heat-crimped portion is deformed by heat. Therefore, in the conventional electric component, there is a problem that the rotation torque of the knob 1 changes.
【0005】[0005]
【発明が解決しようとする課題】従来の電気部品によれ
ば、接点部5a・5b・5cを抵抗基板2の印刷抵抗層
2cおよび円形導電体印刷層2d・2eに弾接させるた
めに、前記接点部5a・5b・5cを上方に所定の角度
をもって折り曲げるために、前記開口3cが形成されて
いる。しかし、基体部3に開口3cがあると、該開口3
cからフラックスやゴミ等が電気部品の内部に侵入し
て、電気部品の性能を害するという問題があった。According to the conventional electric component, in order to elastically contact the contact portions 5a, 5b, 5c with the printed resistance layer 2c and the circular conductor printed layers 2d, 2e of the resistance substrate 2, the above-mentioned structure is used. The opening 3c is formed in order to bend the contact portions 5a, 5b, 5c upward at a predetermined angle. However, if the base portion 3 has the opening 3c, the opening 3c
There is a problem that flux, dust, and the like enter the inside of the electric component from c and impair the performance of the electric component.
【0006】また、基体部3の中央部に、該基体部3と
一体化されて段付支柱3aが形成されて、前記ツマミ1
を熱カシメ等の工法で組み合わせている。そのために、
従来の電気部品を図示しないプリント基板等に半田付け
等で取り付けようとすると、半田付けの熱によって段付
支柱3aが熱変形する問題があった。また、段付支柱3
aの先端を熱カシメ等の工法でツマミ1を組み合わせて
いるので、プリント基板への半田付けをディッピング装
置等の機械で行おうとすると、ディッピング装置内部の
雰囲気温度が高温になっているので、特に前記熱カシメ
部分が熱変形する問題があった。そのために従来の電気
部品においては、ツマミ1の回転トルクが変化する問題
があった。Further, a stepped column 3a is formed in the central portion of the base body portion 3 so as to be integrated with the base body portion 3, and the knob 1 is provided.
Are combined by a method such as heat caulking. for that reason,
When attempting to attach a conventional electric component to a printed circuit board or the like (not shown) by soldering or the like, there is a problem that the stepped column 3a is thermally deformed by the heat of soldering. Also, the stepped column 3
Since the tip of a is combined with the knob 1 by a method such as thermal caulking, when the soldering to the printed circuit board is attempted by a machine such as a dipping device, the atmospheric temperature inside the dipping device becomes high. There has been a problem that the heat-crimped portion is thermally deformed. Therefore, in the conventional electric component, there is a problem that the rotation torque of the knob 1 changes.
【0007】[0007]
【課題を解決するための手段】前記課題を解決するため
の第1の手段として、略中央部に突出形成された支軸、
及び片隅に折り曲げて形成された突起を有する金属製の
取付板と、この取付板の面に取り付けられると共に、前
記支軸が嵌合される取付穴、及び前記突起が嵌合する凹
部または貫通穴、且つ、前記取付板によって一方が蓋閉
される開口を有する絶縁体と、前記絶縁体の前記開口の
内部に露出して配設される弾性力を有する摺動子片と、
前記支軸に回転可能に軸支された回転体と、前記回転体
に設けられ、前記摺動子片がその上を摺動する抵抗体あ
るいは導電パターンとを有する構成とした。また、前記
課題を解決する第2の手段として、前記回転体を前記絶
縁体の前記開口の他方に密接して取り付けた構成とし
た。また、前記課題を解決する第3の手段として、前記
回転体には回転角度規制溝を備え、前記突起の先端を前
記回転体の前記回転角度規制溝に挿入させた構成とし
た。また、前記課題を解決する第4の手段として、前記
取付板には、取付脚が切り起こして形成されると共に、
切り起こした跡に開口が形成され、前記開口が前記絶縁
体によって蓋閉された構成とした。As a first means for solving the above-mentioned problems, a support shaft projectingly formed in a substantially central portion,
And a mounting plate made of metal having a projection formed by bending at one corner and the mounting plate mounted on the surface of the mounting plate,
A mounting hole into which the spindle is fitted, and a recess into which the protrusion is fitted.
Part or through hole, and one side closed with the mounting plate
An insulator having an opening formed between the insulator and the opening of the insulator.
A slider piece having an elastic force, which is disposed so as to be exposed inside,
A rotating body rotatably supported by the support shaft, and the rotating body
Is mounted on the resistor element on which the slider piece slides.
It has a structure having a conductive pattern . As a second means for solving the above problems, and a closely fitted constituting the rotating body to the other of said opening of said insulator. Further, as a third means for solving the above problems, the
The rotating body is equipped with a rotation angle regulation groove, and the tip of the protrusion is
The rotary body is configured to be inserted into the rotation angle regulating groove . Further, as a fourth means to solve the problem, the
Mounting legs are cut and raised on the mounting plate,
An opening is formed at the cut and raised portion, and the opening is the insulating layer.
It was configured to be closed by the body .
【0008】[0008]
【発明の実施の形態】以下、本発明の電気部品の1実施
の形態について回転型可変抵抗器を例に図1ないし図6
を参照して説明する。本発明の電気部品、即ち、回転型
可変抵抗器は、図1において金属製の取付板11と、こ
の取付板11の上面に取付られた絶縁体12と、この絶
縁体12の上面に、基板13を取り付けた回転体14を
順番に積み重ねて構成されている。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an electric component according to the present invention will be described below with reference to FIGS.
Will be described with reference to. The electric component of the present invention, that is, the rotary variable resistor, includes a metal mounting plate 11 in FIG. 1, an insulator 12 mounted on the upper surface of the mounting plate 11, and a substrate on the upper surface of the insulating body 12. The rotary body 14 to which 13 is attached is sequentially stacked.
【0009】まず、取付板11は略長方形でその長手方
向の一方側の片隅には面取りが形成されている。また、
他方側の片隅には突起11aが上方に折り曲げて形成さ
れている。そして、前記取付板11の略中央部には、支
軸11bが絞り加工等によって取付板11と一体的に上
方に突出形成されている。そして、この支軸11bの突
出長さは前記絶縁体12と基板13と回転体14の積層
寸法よりやや長めに形成されている。また、取付板11
の端面11cと前記支軸11bとの間には、取付板11
の長手方向の中央部を含んで内側から外側に向けて、観
音開き状に切り起こして下方に折り曲げた一対の取付脚
11d・11dが開口11eを介在して形成されてい
る。そして、該取付脚11dは、取付板11の一端部1
1mおよび他端部11nの近くに形成されている。ま
た、前記一対の取付脚11d・11dを観音開き状に切
り起こした跡の開口11e・11eの間には桟11fを
形成して取付板11の強度を補強している。また、前記
端面11cの略中央部には突出片11gが前方に出っ張
って形成されている。そして、該突出片11gと前記桟
11fの間の幅狭の平坦部の所定の場所には貫通穴11
hが形成されている。First, the mounting plate 11 has a substantially rectangular shape, and a chamfer is formed at one corner on one side in the longitudinal direction thereof. Also,
A protrusion 11a is formed by bending upward on one corner on the other side. A supporting shaft 11b is integrally formed with the mounting plate 11 so as to project upward at a substantially central portion of the mounting plate 11 by drawing or the like. The protruding length of the support shaft 11b is formed to be slightly longer than the stacking dimension of the insulator 12, the substrate 13, and the rotating body 14. Also, the mounting plate 11
The mounting plate 11 is provided between the end surface 11c and the support shaft 11b.
A pair of mounting legs 11d and 11d, which are cut and raised in a double-door shape and bent downward, are formed through an opening 11e from the inner side to the outer side including the central portion in the longitudinal direction. The mounting leg 11d is the one end portion 1 of the mounting plate 11.
It is formed near 1 m and the other end 11 n. In addition, a crosspiece 11f is formed between the openings 11e and 11e which are formed by cutting and raising the pair of mounting legs 11d and 11d in a double-door shape to reinforce the strength of the mounting plate 11. Further, a protruding piece 11g is formed so as to project forward at a substantially central portion of the end surface 11c. Then, the through hole 11 is provided at a predetermined position of the narrow flat portion between the projecting piece 11g and the crosspiece 11f.
h is formed.
【0010】また、絶縁体12は、一方側が半円形状で
他方側に直線状の面12mを備えて略D字状に形成され
ている。そして、この絶縁体12にはリン青銅等からな
る弾力性のある複数の摺動子片12aが成型樹脂材料に
よるインサート成型加工等で一体化されて形成されてい
る。また、図2に示すように、絶縁体12の略中央部に
は取付穴12bが形成されている。また、前記絶縁体1
2の摺動子片12aが形成された部分には、摺動子片1
2aを曲げ加工するための角状の開口12c・12d・
12eが形成されている。そして、該開口12c・12
d・12eの内部には摺動子片12aが露出して上方に
折り曲げて配設されている。The insulator 12 has a semicircular shape on one side and a straight surface 12m on the other side, and is formed in a substantially D shape. A plurality of elastic slider pieces 12a made of phosphor bronze or the like are integrally formed on the insulator 12 by insert molding or the like using a molding resin material. Further, as shown in FIG. 2, a mounting hole 12b is formed in a substantially central portion of the insulator 12. In addition, the insulator 1
In the portion where the second slider piece 12a is formed, the slider piece 1
Square-shaped openings 12c and 12d for bending 2a
12e is formed. Then, the openings 12c and 12
Inside the d · 12e, the slider piece 12a is exposed and is bent upward.
【0011】また、図3に示すように前記摺動子片12
aの先端部分の接点部は、前記取付穴12bの周囲に設
けられた突出面12fから出っ張るように、前記開口1
2c・12d・12eを利用して曲げ加工を行い、所定
の角度をもって上方に折り曲げて形成されている。ま
た、絶縁体12の一方側の半円形状の外周面には切り欠
き状の凹部12gが形成され、前記取付板の突起11a
が嵌合している。また、絶縁体12の表面には後述する
基板13の外径よりやや大きい凹面12kが、絶縁体1
2の表面からくぼみをもって形成されている。また、前
記絶縁体12の一方側の所定の場所には貫通穴12hが
貫通して形成されている。また、前記他方側の直線形状
の面12mには摺動子片12aから延長されてつながっ
ている端子12jが下方に折り曲げて形成されている。
そして、前述した取付板11の支軸11bと突起11a
に、絶縁体12の取付穴12bと凹部12gが嵌合し
て、回り止めされた前記絶縁体12が位置決めされて取
付板11に取り付けられている。このとき、前記突起1
1aが嵌合する位置決めのための凹部12gは、切り欠
き状に限定されるものでなく、突起11aがガタなく嵌
合する貫通穴でもよい。Further, as shown in FIG. 3, the slider piece 12
The contact portion at the tip portion of a is formed so as to project from the projecting surface 12f provided around the mounting hole 12b.
Bending is performed using 2c, 12d, and 12e, and it is formed by bending upward at a predetermined angle. A cutout-shaped recess 12g is formed on the semicircular outer peripheral surface on one side of the insulator 12, and the protrusion 11a of the mounting plate is formed.
Are fitted. Further, on the surface of the insulator 12, a concave surface 12k, which is slightly larger than the outer diameter of the substrate 13 described later, is formed.
It is formed with a hollow from the surface of 2. Further, a through hole 12h is formed so as to penetrate at a predetermined location on one side of the insulator 12. Further, a terminal 12j extending from the slider piece 12a and connected thereto is formed by bending downward on the linear surface 12m on the other side.
Then, the support shaft 11b and the protrusion 11a of the mounting plate 11 described above.
Then, the mounting hole 12b of the insulator 12 and the recess 12g are fitted to each other, and the blocked insulator 12 is positioned and mounted on the mounting plate 11. At this time, the protrusion 1
The recess 12g for positioning the 1a is not limited to the notch shape, and may be a through hole into which the protrusion 11a fits without play.
【0012】また、絶縁体12の開口12c・12d・
12eの一方は、前記取付板11の平坦部11jによっ
て蓋閉され、前記絶縁体12の開口12c・12d・1
2eの一方から可変抵抗器の内部にフラックスやゴミ等
が侵入するのを防ぎ、また、取付板11の2つの開口1
1e・11eは絶縁体12の裏面の平坦部12nによっ
て蓋閉されるので、前記取付板11の2つの開口11e
・11eからは、電気部品の内部にゴミ等が侵入しない
ようになっている。また、基板13は円盤状で、他方側
を直線形状でカットした回り止め部13aが形成され
て、フェノール樹脂積層板等の材料からなっている。そ
して、基板13には、前記摺動子片12aが対向する面
に、印刷等によって抵抗体13dが形成されている。ま
た、基板13の中央部には取付穴13bが、そして、一
方側の所定の場所には貫通穴13cが形成されて、前記
取付穴13bの周囲の面が前記絶縁体12の突出面12
fに接するようになっている。Further, the openings 12c, 12d, ...
One side of 12e is closed by the flat portion 11j of the mounting plate 11, and the openings 12c, 12d, 1 of the insulator 12 are closed.
The flux and dust are prevented from entering the inside of the variable resistor from one side of 2e, and the two openings 1 of the mounting plate 11 are prevented.
Since the lids 1e and 11e are closed by the flat portion 12n on the back surface of the insulator 12, the two openings 11e of the mounting plate 11 are formed.
-From 11e, dust and the like are prevented from entering the inside of the electric parts. Further, the substrate 13 is disc-shaped, and the detent portion 13a formed by cutting the other side in a linear shape is formed and is made of a material such as a phenol resin laminated plate. A resistor 13d is formed on the substrate 13 by printing or the like on the surface facing the slider piece 12a. Further, a mounting hole 13b is formed in the central portion of the substrate 13, and a through hole 13c is formed in a predetermined place on one side, and the surface around the mounting hole 13b is the protruding surface 12 of the insulator 12.
It comes in contact with f.
【0013】また、回転体14は略円盤状で合成樹脂等
からなっている。そして、その外周14aは操作者の指
等の滑り止めのために山形の凹凸形状を形成している。
また、その中心部には前記取付板11に形成された支軸
11bが嵌合する取付穴14bと、前記外周14aに近
い所定の場所には貫通穴14cとが貫通して形成されて
いる。また、回転体14の裏面は、図4に示すように基
板13の外形形状と同形状で、基板13の外形がガタな
く嵌合されるように、基板取付部14dが基板13の厚
さ寸法とより若干深く形成され、且つ、回り止め部14
jを形成している。また、前記取付穴14bの周囲には
前記基板13の取付穴13bが嵌合する突出部14eが
形成されている。また、前記回転体14の基板取付部1
4dと外周14aの間には、回転体14の回転角度を決
めるための回転角度規制溝14fが、所定の幅、深さ、
角度で円弧状に形成されていいる。そして、この回転角
度規制溝14fには前記取付板11の突起11aの先端
が挿入されて回転体14の回転角度を規制するストッパ
の働きをするようになっている。The rotating body 14 is substantially disk-shaped and is made of synthetic resin or the like. The outer periphery 14a is formed with a mountain-shaped concavo-convex shape in order to prevent the operator's fingers or the like from slipping.
In addition, a mounting hole 14b into which a support shaft 11b formed on the mounting plate 11 is fitted is formed at the center thereof, and a through hole 14c is formed at a predetermined location near the outer periphery 14a. As shown in FIG. 4, the back surface of the rotating body 14 has the same shape as the outer shape of the board 13, and the board mounting portion 14d has a thickness dimension of the board 13 so that the outer shape of the board 13 is fitted without play. And a little deeper, and the rotation stopping portion 14
forming j. Around the mounting hole 14b, a protrusion 14e into which the mounting hole 13b of the substrate 13 is fitted is formed. In addition, the board mounting portion 1 of the rotating body 14
A rotation angle restriction groove 14f for determining a rotation angle of the rotating body 14 is provided between the 4d and the outer periphery 14a, and has a predetermined width and depth.
It is formed in an arc shape at an angle. The tip of the protrusion 11a of the mounting plate 11 is inserted into the rotation angle regulation groove 14f to function as a stopper for regulating the rotation angle of the rotating body 14.
【0014】このような構成の回転体14は、前記基板
13が基板取付部14dに回り止めされて組み合わされ
た状態で、取り扱われるようになっている。そして、前
記絶縁体12には、前記基板13を取り付けた回転体1
4を組み合わせて、該回転体14は前記取付板11の支
軸11bにカシメ付けられて回転自在に軸支されてい
る。また、このとき、摺動子片12aは、基板13に形
成されている抵抗体13dに圧接されて、前記開口12
c・12d・12eの内部に押し下げられて、該開口1
2c・12d・12eの他方には回転体14が密接して
組み合わされている。そのために、前記絶縁体12の開
口12c・12d・12eの一方と他方の上下から蓋閉
したので、電気部品、即ち回転型可変抵抗器の内部にフ
ラックスやゴミ等が侵入を防ぐことができる。また、前
記取付板の貫通穴11hと、絶縁体12の貫通穴12h
と、基板13の貫通穴13cと、回転体14の貫通穴1
4cとは、軸芯から等しい距離で重なり合った状態にな
っている。また、図5に示すように、回転体14の外周
14a近傍まで、前記取付板11の突出片11gが延在
し、そして、その延在の長さは突出片11gの先端がキ
ャビネット17の開口17aの内部に位置するようにな
っている。The rotating body 14 having such a structure is handled in a state in which the substrate 13 is combined with the substrate mounting portion 14d while being prevented from rotating. Then, the rotating body 1 in which the substrate 13 is attached to the insulator 12
4, the rotary body 14 is rotatably supported by being caulked to the support shaft 11b of the mounting plate 11. At this time, the slider piece 12a is pressed into contact with the resistor 13d formed on the substrate 13 to move the opening 12a.
c, 12d, 12e are pushed down into the opening 1
The rotating body 14 is closely combined with the other of 2c, 12d, and 12e. Therefore, the lid 12 is closed from above and below one of the openings 12c, 12d, and 12e of the insulator 12, so that flux, dust, and the like can be prevented from entering the inside of the electric component, that is, the rotary variable resistor. Further, the through hole 11h of the mounting plate and the through hole 12h of the insulator 12
And the through hole 13c of the substrate 13 and the through hole 1 of the rotating body 14.
4c is a state in which they overlap with each other at an equal distance from the axis. Further, as shown in FIG. 5, the protruding piece 11g of the mounting plate 11 extends to the vicinity of the outer periphery 14a of the rotating body 14, and the length of the extension is such that the tip of the protruding piece 11g is the opening of the cabinet 17. It is located inside 17a.
【0015】上記した構成の、本発明の電気部品、即ち
回転型可変抵抗器の組立と動作について説明すると、図
1に示すように、図示しない組立治具に取り付けられて
いる位置決めピン15aに前記取付板11の貫通穴11
hを挿入し、同じく位置決めピン15bに取付板11の
支軸11bの穴を挿入して、取付板11を組立治具に載
置する。次に、取付板11の貫通穴11hを貫通して突
出している前記位置決めピン15aに、前記絶縁体12
の貫通穴12hと、支軸11bに取付穴12bを挿入す
ると、突起11aには絶縁体12の凹部12gが位置決
めされて嵌合される。Assembling and operation of the electric component of the present invention having the above-mentioned structure, that is, the rotary variable resistor will be explained. As shown in FIG. 1, the positioning pin 15a attached to an assembling jig (not shown) has the above-mentioned structure. Through hole 11 of mounting plate 11
Similarly, h is inserted, and similarly, the hole of the support shaft 11b of the mounting plate 11 is inserted into the positioning pin 15b, and the mounting plate 11 is placed on the assembly jig. Next, the insulator 12 is attached to the positioning pin 15a protruding through the through hole 11h of the mounting plate 11.
When the through hole 12h and the mounting hole 12b are inserted into the support shaft 11b, the recess 12g of the insulator 12 is positioned and fitted to the protrusion 11a.
【0016】次に、前記絶縁体12の貫通穴12hを貫
通して突出している位置決めピン15aに、回転体14
の基板取付部14dに嵌合させて取り付けられている基
板13の貫通穴13cと回転体14の貫通穴14cとを
同時に挿入し、且つ、前記絶縁体12の取付穴12bか
ら突出している取付板11の支軸11bに取付穴14b
を挿入すると、基板13に形成されている抵抗体13d
には、前記摺動子片12aが対向して接する。また、こ
のとき、回転体14の裏面に形成されている回転角度規
制溝14fに前記取付板11の突起11aの先端が挿入
される。そして、該挿入状態の突起11aの先端は前記
回転角度規制溝14fの一端側14gに接するようにな
っている。Next, the rotator 14 is attached to the positioning pin 15a protruding through the through hole 12h of the insulator 12.
The mounting plate that simultaneously inserts the through hole 13c of the substrate 13 and the through hole 14c of the rotating body 14 that are fitted and mounted in the substrate mounting portion 14d of the above, and projects from the mounting hole 12b of the insulator 12 11 support shaft 11b for mounting hole 14b
Is inserted, the resistor 13d formed on the substrate 13
The slider pieces 12a face each other and contact each other. At this time, the tip of the projection 11a of the mounting plate 11 is inserted into the rotation angle restriction groove 14f formed on the back surface of the rotating body 14. The tip of the protrusion 11a in the inserted state is in contact with the one end side 14g of the rotation angle regulating groove 14f.
【0017】このように取付板11の上に絶縁体12、
基板13、回転体14を積み重ねると、取付板11の支
軸11bの先端が、回転体14の取付穴14bから出っ
張った状態になっている。このとき、基板13を嵌合し
て取り付けた回転体14は、前記摺動子片12aの弾力
性により上方に持ち上げられて、前記絶縁体12との間
に隙間が形成された状態になっている。このような状態
から、前記支軸11bの先端を図示しない治具によりカ
シメると、回転体14の突出部14eの周辺が、絶縁体
12の突出面12fに圧接される。そして、前記回転体
14と絶縁体12との間の隙間がなくなるとともに、基
板13の板厚がバラツいたとしても一定の回転作動力を
得ることができるようになっている。また、回転体14
の回転角度規制溝14fの中に取付板11の突起11a
の先端が位置した状態で本発明の回転型可変抵抗器の組
立は終了する。In this way, the insulator 12,
When the substrate 13 and the rotating body 14 are stacked, the tip of the support shaft 11b of the mounting plate 11 is in a state of protruding from the mounting hole 14b of the rotating body 14. At this time, the rotating body 14 to which the substrate 13 is fitted and attached is lifted upward by the elasticity of the slider piece 12a, and a gap is formed between the rotating body 14 and the insulator 12. There is. When the tip end of the support shaft 11b is caulked by a jig (not shown) from such a state, the periphery of the protruding portion 14e of the rotating body 14 is pressed against the protruding surface 12f of the insulator 12. The gap between the rotating body 14 and the insulator 12 is eliminated, and a constant rotational actuating force can be obtained even if the thickness of the substrate 13 varies. In addition, the rotating body 14
The protrusion 11a of the mounting plate 11 in the rotation angle regulating groove 14f of
The assembly of the rotary variable resistor of the present invention is completed in the state where the tip of is positioned.
【0018】次に、前記図示しない組立治具から、前記
組立の終了した回転型可変抵抗器を取り出すと、前記そ
れぞれの部品の貫通穴11h、12h、13c、14c
に嵌合していた位置決めピン15aと、支軸11bの穴
からは別な位置決めピン15bが抜けて、回転体14は
所定の回転トルクをもって、前記回転角度規制溝14f
の一端側14gから他端側14hの範囲内で、回転可能
になる。このような、本発明の回転型可変抵抗器の一使
用状態を説明すると、図5に示すように本発明の回転型
可変抵抗器は、回路基板16に端子12jと取付脚11
dが半田付け等によって取り付けられている。そして、
オーディオ機器等の装置側のキャビネット17の外側に
臨む回転体14の外周14aの一部を、人の指等により
回転操作すると、基板13が回転して絶縁体12の摺動
子片12a上を摺動して抵抗値が変化するようになって
いる。Next, when the rotary type variable resistor which has been assembled is taken out from the assembly jig (not shown), the through holes 11h, 12h, 13c, 14c of the respective parts are taken out.
The positioning pin 15a that was fitted to the support shaft 11b and the other positioning pin 15b from the hole of the support shaft 11b come out, so that the rotating body 14 has a predetermined rotational torque and the rotation angle regulating groove 14f.
It becomes possible to rotate within a range from one end side 14g to the other end side 14h. One use state of the rotary variable resistor of the present invention will be described. As shown in FIG. 5, the rotary variable resistor of the present invention has a terminal 12 j and a mounting leg 11 on a circuit board 16.
d is attached by soldering or the like. And
When a part of the outer circumference 14a of the rotating body 14 facing the outside of the cabinet 17 on the device side such as an audio device is rotated by a finger of a person or the like, the substrate 13 is rotated and the slider piece 12a of the insulator 12 is placed on the slider piece 12a. The resistance value is changed by sliding.
【0019】このような構成の本発明の電気部品、即
ち、回転型可変抵抗器では、前記絶縁体12に形成され
た開口12c、12d、12eの一方を取付板11の平
坦部11jで塞いだので、絶縁体12の開口12c・1
2d・12eの一方から電気部品の内部にフラックスや
ゴミ等が侵入するのを防ぐことができる。また、前記絶
縁体12の開口12c・12d・12eの他方に、回転
体14を密接して取り付けたので、前記絶縁体12の開
口12c・12d・12eを一方と他方の上下から蓋閉
したので、更に電気部品、即ち回転可変抵抗器の内部に
確実にフラックスやゴミ等の侵入を防ぐことができる。In the electric component of the present invention having such a structure, that is, the rotary variable resistor, one of the openings 12c, 12d and 12e formed in the insulator 12 is closed by the flat portion 11j of the mounting plate 11. Therefore, the opening 12c.1 of the insulator 12
It is possible to prevent flux, dust, and the like from entering the inside of the electric component from one of the 2d and 12e. Further, since the rotating body 14 is closely attached to the other of the openings 12c, 12d, 12e of the insulator 12, the openings 12c, 12d, 12e of the insulator 12 are closed from the upper and lower sides of one and the other. Furthermore, it is possible to reliably prevent the intrusion of flux, dust, etc. into the electric parts, that is, the inside of the rotation variable resistor.
【0020】また、取付板11の外周端部に前記絶縁体
12に嵌合する突起11aを設けたので、前記突起11
aと、支軸11bとで、取付板11と絶縁体12が位置
ズレすることなく所定の位置に簡単で確実に位置決めす
ることができる。また、取付板11と絶縁体12が位置
ズレしないので、取付板11の外形寸法を必要以上に大
きくすることなく、前記絶縁体12の開口を確実に塞ぐ
ことができる。また、前記絶縁体12に設けられた凹部
12gまたは貫通穴と、前記回転体14の回転角度規制
溝14fに、前記突起11aを挿入させることで、絶縁
体12の位置決めと、回転体14の回転角度を規制する
ストッパの働きを兼ねることができ、1つの部品で部品
点数を増やさないで2つの働きを兼ねることができるの
で、製品が大型にならず、且つ、コスト低減ができる。Further, since the protrusion 11a fitted to the insulator 12 is provided on the outer peripheral end of the mounting plate 11, the protrusion 11 is formed.
The mounting plate 11 and the insulator 12 can be easily and reliably positioned at a predetermined position by using a and the support shaft 11b without any positional deviation. Further, since the mounting plate 11 and the insulator 12 are not displaced from each other, the opening of the insulator 12 can be surely closed without increasing the outer dimension of the mounting plate 11 more than necessary. Further, by inserting the protrusion 11a into the recess 12g or the through hole provided in the insulator 12 and the rotation angle regulating groove 14f of the rotor 14, the insulator 12 is positioned and the rotor 14 is rotated. Since it can also serve as a stopper that regulates the angle, and one component can perform two functions without increasing the number of parts, so that the product does not become large and the cost can be reduced.
【0021】なお、本発明の実施の形態では基板13の
回転方向の位置決めを、回り止め部14jと13aによ
り行っているが、これに代えて回転体14の裏面に凸部
を設け、絶縁基板13には、前記凸部が嵌合する穴を設
けてもよい。また、本発明では、絶縁体12の位置決め
と、回転体14の回転角度の規制を、取付板11に設け
た突起11aで行っているが、絶縁体12に突起を設け
てもよい。また、取付板11の突出片11gを変形させ
て、回転体14まで上方に折り曲げて延長させて、且
つ、絶縁体12に該突出片11gが嵌合する凹部を設
け、前記絶縁体12と取付板11との位置決めと、回転
体14の回転角度の規制を行ってもよい。また、本発明
では基板13に抵抗体13dを印刷して、回転体14に
取り付けているが、他の実施の形態として前記抵抗体1
3dをインサート成形により基板13に取り付けてもよ
い。また、基板13を使わないで回転体14に直接抵抗
体13dを印刷、転写等の方法で形成してもよい。ま
た、本発明の実施の形態の説明においては、回転型可変
抵抗器を例に説明したが、抵抗体13dあるいは、導体
パターン等からなる回路パターンを形成した回転型エン
コーダ等の電気部品に応用することも可能である。In the embodiment of the present invention, the rotation direction of the substrate 13 is determined by the rotation stoppers 14j and 13a. Instead, the protrusions are provided on the back surface of the rotating body 14 to form the insulating substrate. The 13 may be provided with a hole into which the convex portion fits. Further, in the present invention, the positioning of the insulator 12 and the regulation of the rotation angle of the rotating body 14 are performed by the protrusion 11a provided on the mounting plate 11, but the insulator 12 may be provided with a protrusion. Further, the projecting piece 11g of the mounting plate 11 is deformed, bent upward to the rotating body 14 and extended, and the insulator 12 is provided with a recess for fitting the projecting piece 11g. Positioning with the plate 11 and regulation of the rotation angle of the rotating body 14 may be performed. Further, in the present invention, the resistor 13d is printed on the substrate 13 and attached to the rotating body 14. However, in another embodiment, the resistor 1d is used.
3d may be attached to the substrate 13 by insert molding. Alternatively, the resistor 13d may be directly formed on the rotating body 14 by a method such as printing or transfer without using the substrate 13. Further, in the description of the embodiments of the present invention, the rotary variable resistor has been described as an example, but the present invention is applied to electrical components such as the resistor 13d or a rotary encoder in which a circuit pattern including a conductor pattern is formed. It is also possible.
【0022】[0022]
【発明の効果】以上説明したように、本発明の電気部
品、即ち回転型可変抵抗器によれば、前記絶縁体に形成
された開口の一方を取付板で塞いだので、絶縁体の開口
の一方から電気部品の内部にフラックスやゴミ等の侵入
するのを防ぐことができる電気部品を提供できる。ま
た、前記絶縁体に形成された開口の他方を、前記回転体
で塞ぐことで、前記絶縁体を上下から蓋閉できるので、
確実に電気部品、即ち回転可変抵抗器の内部にゴミ等の
侵入するのを防ぐことができるので、ゴミ等による性能
劣化が少ない電気部品を提供することができる。As described above, according to the electric component of the present invention, that is, the rotary variable resistor, one of the openings formed in the insulator is closed by the mounting plate, so that the opening of the insulator is prevented. It is possible to provide an electric component that can prevent flux, dust, and the like from entering the inside of the electric component from one side. Further, by closing the other of the openings formed in the insulator with the rotating body, the insulator can be closed from above and below,
Since it is possible to reliably prevent the intrusion of dust or the like into the electric component, that is, the inside of the rotation variable resistor, it is possible to provide the electric component in which the performance is less deteriorated by the dust or the like.
【0023】また、前記絶縁体に設けられた凹部または
貫通穴と、前記回転体に形成した回転角度規制溝に前記
取付板の突起を嵌合させることで、1つの部材で絶縁体
の位置決めと、回転体の回転角度を規制するストッパの
働きを兼ねることができるので、製品が大型にならず、
且つ、低コストの電気部品を提供することができる。Further, by fitting the projection of the mounting plate into the recess or through hole provided in the insulator and the rotation angle regulating groove formed in the rotor, the insulator can be positioned by one member. Since it can also function as a stopper that regulates the rotation angle of the rotating body, the product does not become large,
In addition, it is possible to provide a low-cost electric component.
【図1】本発明の回転型可変抵抗器の分解斜視図。FIG. 1 is an exploded perspective view of a rotary variable resistor according to the present invention.
【図2】本発明の回転型可変抵抗器の絶縁体の平面図。FIG. 2 is a plan view of an insulator of the rotary variable resistor according to the present invention.
【図3】本発明の回転型可変抵抗器の絶縁体の要部断面
図。FIG. 3 is a sectional view of an essential part of an insulator of a rotary variable resistor according to the present invention.
【図4】本発明の回転型可変抵抗器の回転体の下面図。FIG. 4 is a bottom view of the rotating body of the rotary variable resistor according to the present invention.
【図5】本発明の回転型可変抵抗器の使用状態を説明す
る概略図。FIG. 5 is a schematic view illustrating a usage state of the rotary variable resistor of the present invention.
【図6】本発明の回転型可変抵抗器の要部断面図。FIG. 6 is a sectional view of an essential part of a rotary variable resistor according to the present invention.
【図7】従来の回転型可変抵抗器の要部断面図。FIG. 7 is a sectional view of a main part of a conventional rotary variable resistor.
【図8】従来の回転型可変抵抗器のツマミの下面図。FIG. 8 is a bottom view of a knob of a conventional rotary variable resistor.
【図9】従来の回転型可変抵抗器の抵抗基板の平面図。FIG. 9 is a plan view of a resistance substrate of a conventional rotary variable resistor.
1 ツマミ 1a 円形穴 1c 突起 1d 溝 1e ストッパ部 2 抵抗基板 3 基体部 3a 段付支柱 3b 突起 3c 開口 4 スペーサ 5 弾性接点体 5a・5b・5c 接点部 11 本発明の取付板 11a 突起 11b 支軸 11d 取付脚 11e 開口 11g 突出片 11h 貫通穴 12 本発明の絶縁体 12a 摺動子片 12b 取付穴 12c・12d・12e 開口 12f 突出面 12g 凹部 12h 貫通穴 13 本発明の基板 13a 回り止め部 13b 取付穴 13c 貫通穴 14 回転体 14b 回転穴 14c 貫通穴 14f 回転角度規制溝 15a 位置決めピン 15b 位置決めピン 16 回路基板 17 キャビネット 1 knob 1a circular hole 1c protrusion 1d groove 1e Stopper part 2 resistor board 3 Base part 3a Stepped support 3b protrusion 3c opening 4 spacers 5 Elastic contact point 5a, 5b, 5c contact point 11 Mounting plate of the present invention 11a protrusion 11b spindle 11d mounting leg 11e opening 11g protruding piece 11h through hole 12 Insulator of the present invention 12a Slider piece 12b mounting hole 12c / 12d / 12e opening 12f protruding surface 12g recess 12h through hole 13 Substrate of the present invention 13a Detent part 13b Mounting hole 13c through hole 14 rotating body 14b rotating hole 14c through hole 14f Rotation angle regulation groove 15a Positioning pin 15b Positioning pin 16 circuit board 17 cabinets
Claims (4)
隅に折り曲げて形成された突起を有する金属製の取付板
と、この取付板の面に取り付けられると共に、前記支軸
が嵌合される取付穴、及び前記突起が嵌合する凹部また
は貫通穴、且つ、前記取付板によって一方が蓋閉される
開口を有する絶縁体と、前記絶縁体の前記開口の内部に
露出して配設される弾性力を有する摺動子片と、前記支
軸に回転可能に軸支された回転体と、前記回転体に設け
られ、前記摺動子片がその上を摺動する抵抗体あるいは
導電パターンとを有することを特徴する電気部品。1. A support shaft and a piece formed to project in a substantially central portion.
A metal mounting plate having protrusions formed by bending the corners, and the supporting shaft mounted on the surface of the mounting plate.
Mounting hole for fitting the
Is a through hole, and one side is closed by the mounting plate.
An insulator having an opening, and inside the opening of the insulator
An exposed slider piece having elastic force, and the support
A rotary body rotatably supported by a shaft and provided on the rotary body
A resistor on which the slider piece slides or
An electric component having a conductive pattern .
方に密接して取り付けたことを特徴する請求項1記載の
電気部品。Wherein the electrical component according to claim 1 wherein characterized in that attached closely to the rotating body to the other of said opening of said insulator.
前記突起の先端を前記回転体の前記回転角度規制溝に挿
入させたことを特徴する請求項1、又は2記載の電気部
品。3. The rotating body is provided with a rotation angle regulating groove,
Insert the tip of the protrusion into the rotation angle regulation groove of the rotating body.
Electrical component according to claim 1 or 2 Symbol mounting features that were input.
形成されると共に、切り起こした跡に開口が形成され、
前記開口が前記絶縁体によって蓋閉されたことを特徴す
る請求項1記載の電気部品。 4. A mounting leg is cut and raised on the mounting plate.
As it is formed, an opening is formed in the cut and raised trace,
Electrical component according to claim 1 wherein wherein the opening is closed lid by the insulator.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13958696A JP3380680B2 (en) | 1996-05-08 | 1996-05-08 | Electrical component |
TW088201331U TW408843U (en) | 1996-05-08 | 1997-04-15 | Electrical parts |
MYPI97002007A MY121609A (en) | 1996-05-08 | 1997-05-07 | Electrical part |
CN971042454A CN1094238C (en) | 1996-05-08 | 1997-05-07 | Electrical parts |
KR1019970017644A KR100230705B1 (en) | 1996-05-08 | 1997-05-08 | Electric parts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13958696A JP3380680B2 (en) | 1996-05-08 | 1996-05-08 | Electrical component |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09298105A JPH09298105A (en) | 1997-11-18 |
JP3380680B2 true JP3380680B2 (en) | 2003-02-24 |
Family
ID=15248723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13958696A Expired - Fee Related JP3380680B2 (en) | 1996-05-08 | 1996-05-08 | Electrical component |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP3380680B2 (en) |
KR (1) | KR100230705B1 (en) |
CN (1) | CN1094238C (en) |
MY (1) | MY121609A (en) |
TW (1) | TW408843U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004288924A (en) * | 2003-03-24 | 2004-10-14 | Alps Electric Co Ltd | Variable resistor |
CN103700458B (en) * | 2013-09-29 | 2017-01-11 | 昆山福烨电子有限公司 | Side surface adjusting rod multi-level potentiometer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5717107A (en) * | 1980-07-03 | 1982-01-28 | Murata Manufacturing Co | Variable resistor |
JPH07123081B2 (en) * | 1986-08-05 | 1995-12-25 | 松下電器産業株式会社 | Rotatable variable resistor |
JPH0722215A (en) * | 1993-01-29 | 1995-01-24 | Murata Mfg Co Ltd | Variable resistor |
-
1996
- 1996-05-08 JP JP13958696A patent/JP3380680B2/en not_active Expired - Fee Related
-
1997
- 1997-04-15 TW TW088201331U patent/TW408843U/en not_active IP Right Cessation
- 1997-05-07 MY MYPI97002007A patent/MY121609A/en unknown
- 1997-05-07 CN CN971042454A patent/CN1094238C/en not_active Expired - Fee Related
- 1997-05-08 KR KR1019970017644A patent/KR100230705B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
TW408843U (en) | 2000-10-11 |
JPH09298105A (en) | 1997-11-18 |
MY121609A (en) | 2006-02-28 |
CN1094238C (en) | 2002-11-13 |
KR970076911A (en) | 1997-12-12 |
KR100230705B1 (en) | 1999-11-15 |
CN1166037A (en) | 1997-11-26 |
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