JPS582012Y2 - small variable resistor - Google Patents
small variable resistorInfo
- Publication number
- JPS582012Y2 JPS582012Y2 JP18153778U JP18153778U JPS582012Y2 JP S582012 Y2 JPS582012 Y2 JP S582012Y2 JP 18153778 U JP18153778 U JP 18153778U JP 18153778 U JP18153778 U JP 18153778U JP S582012 Y2 JPS582012 Y2 JP S582012Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- terminal
- cover
- insulating substrate
- rotating body
- 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
Links
Landscapes
- Details Of Resistors (AREA)
- Adjustable Resistors (AREA)
Description
【考案の詳細な説明】
本考案は小型の可変抵抗器に関し、特に組立作業性が良
好で、構造の簡易な防塵型の可変抵抗器を提供すること
を目的とする。[Detailed Description of the Invention] The present invention relates to a small variable resistor, and in particular, an object of the present invention is to provide a dust-proof variable resistor that is easy to assemble and has a simple structure.
従来のこの種の小型可変抵抗器においては、絶縁基板上
の電極パターンと端子との接続を、半田付けもしくは絞
めによって行なっていたため、非常に組立て作業性が悪
いものであった。In conventional small variable resistors of this type, the electrode patterns on the insulating substrate and the terminals were connected by soldering or tightening, which resulted in very poor assembly workability.
特に、ケースの直径がlQmm程度の小型可変抵抗器に
あっては各部品が微小であるため、上記の作業は煩雑で
熟練を要するものであった。In particular, in the case of a small variable resistor with a case diameter of about 1Q mm, each component is minute, so the above-mentioned work is complicated and requires skill.
本考案は上記の点に鑑み威されたもので、以下本考案の
詳細を第1図〜第8図に示した一実施例によって説明す
る。The present invention has been developed in view of the above points, and the details of the present invention will be explained below with reference to an embodiment shown in FIGS. 1 to 8.
図において、1は絶縁性の合成樹脂からなる有底の略円
筒状のケース、2,2はケース1周面の切溝、4はケー
スの底面部3に設けた円環状の台座、5は台座4で形成
された有底の凹部、6はケース1周面の内壁から前記台
座4に向って延びた突起で、後述する回転体15のスト
ッパー機能とカバー25の位置決め機能とをもつ第1突
出部6a並びに第1突出部6aと台座4とを連結すると
共に後述する端子7と絶縁基板10との位置決めとなる
第2突出部6bとを有する。In the figure, 1 is an approximately cylindrical case with a bottom made of insulating synthetic resin, 2 and 2 are grooves on the circumferential surface of the case 1, 4 is an annular pedestal provided on the bottom surface 3 of the case, and 5 is a bottomed cylindrical case. The bottomed concave portion 6 formed by the pedestal 4 is a protrusion extending from the inner wall of the circumferential surface of the case 1 toward the pedestal 4, and has a first function as a stopper for the rotating body 15 and a positioning function for the cover 25, which will be described later. It has a protrusion 6a and a second protrusion 6b that connects the first protrusion 6a and the pedestal 4 and positions the terminal 7 and the insulating substrate 10, which will be described later.
7.7は良導電性の金属板より成る端子で、それぞれ接
続部7aと、接続部7aから垂下した端子部7bとを有
する(第2図参照)。7.7 is a terminal made of a highly conductive metal plate, each having a connecting portion 7a and a terminal portion 7b hanging down from the connecting portion 7a (see FIG. 2).
該端子7は、その接続部7aを前記ケース1の底面部3
上に載置されると共に、その端子部7bを底面部3の透
孔8(第3図参照)から外部に導出されている。The terminal 7 has its connecting portion 7a connected to the bottom surface 3 of the case 1.
The terminal portion 7b is led out from the through hole 8 (see FIG. 3) of the bottom surface portion 3.
前記底面部3には端子部7bを位置決めするために、接
続部7aと同一形状で且つ接続部7aと同一厚みの凹部
9が形成されており(第3図参照)、接続部7aは凹部
9に収納された状態において、接続部7aの上側表面は
ケース1の底面部3と同一平面上に位置するようになっ
ていると共に、接続部7aはその端面をケース1周面内
壁と前記第2突出部6bとにそれぞれ当接させて所期の
位置に回動不能に載置されている。In order to position the terminal part 7b, a recess 9 having the same shape and thickness as the connecting part 7a is formed in the bottom part 3 (see FIG. 3), and the connecting part 7a is formed in the recess 9. In the state stored in the case 1, the upper surface of the connecting part 7a is located on the same plane as the bottom part 3 of the case 1, and the end surface of the connecting part 7a is located between the inner wall of the circumferential surface of the case 1 and the second The protrusions 6b are respectively placed in contact with the protrusions 6b at the desired positions so as not to be rotatable.
10は略円板形の絶縁基板で、その−面側(表側)には
弧状の抵抗体11と、該抵抗体11の両端に接続した電
極パターン12.12とがそれぞれ形成されており、該
表側の電極パターン12.12はそれぞれ絶縁基板10
の他面側(裏面側)まで基板10の端面を通って連続し
て形成されている(第1,4図参照)。Reference numeral 10 denotes a substantially disk-shaped insulating substrate, on the negative side (front side) of which an arc-shaped resistor 11 and electrode patterns 12 and 12 connected to both ends of the resistor 11 are formed, respectively. The electrode patterns 12 and 12 on the front side are respectively connected to the insulating substrate 10.
It is formed continuously through the end surface of the substrate 10 to the other surface side (back side) (see FIGS. 1 and 4).
13は絶縁基板10の中心孔で、前記ケース1の台座4
の外径と等しく、又、中心孔13と連らなった切欠き1
4の幅は前記ケース1の第2突出部6bの幅と等しく形
成してあり、上記中心孔13、切欠き14をそれぞれ台
座4、第2突出部6bに合致させて、該絶縁基板10を
ケース1の底面部3に載置すれば、絶縁基板10は回動
不能に位置決めされると共に、絶縁基板10の裏面の電
極パターン12゜12と前記端子7,7の接続部7a、
7aとがそれぞれ当接し、電気的に接続されるようにな
っている。Reference numeral 13 denotes a center hole of the insulating substrate 10, which is connected to the pedestal 4 of the case 1.
A notch 1 that is equal to the outer diameter of the
The width of the insulating substrate 10 is made equal to the width of the second protrusion 6b of the case 1, and the center hole 13 and the notch 14 are aligned with the base 4 and the second protrusion 6b, respectively. When placed on the bottom surface 3 of the case 1, the insulating substrate 10 is positioned unrotatably, and the electrode pattern 12° 12 on the back surface of the insulating substrate 10 and the connecting portion 7a of the terminals 7, 7,
7a are brought into contact with each other and are electrically connected.
15は絶縁性の合成樹脂よりなる回転体で、その円板部
16に摺動子17を一体に埋設しである。Reference numeral 15 denotes a rotary body made of insulating synthetic resin, and a slider 17 is integrally embedded in a disc portion 16 of the rotating body.
18゜19は円板部16の上下にそれぞれ形成された段
部、20は上側の段部18に形成された操作軸部、21
は下側の段部に形成された軸部である(第1,5図参照
)。Reference numerals 18 and 19 indicate stepped portions formed on the upper and lower sides of the disc portion 16, 20 indicates an operating shaft portion formed on the upper stepped portion 18, and 21
is a shaft formed on the lower step (see Figures 1 and 5).
上記の軸部21は前記ケース1の台座4で形成された凹
部5内に挿入されて、回転体15を位置決めしていると
共に、上記の両段部18,19は前記絶縁基板10と後
述するカバー25とにそれぞれ当接して回転体15を上
下に移動不能に位置決めするようになっている。The shaft portion 21 is inserted into the recess 5 formed by the pedestal 4 of the case 1 to position the rotating body 15, and the stepped portions 18 and 19 are connected to the insulating substrate 10, which will be described later. The rotating body 15 is positioned such that it cannot move up and down by abutting against the cover 25, respectively.
23.24は前記回転体15の円板部16から突出した
ストッパー用の突起で、該両業態23.24間の円板部
16を切欠いた個所に、前記摺動子7の弾性を有する接
触腕17 a 、17 bが互いにその先端の接触部を
離間させるように上下に分離して突出している。Numerals 23 and 24 are protrusions for a stopper that protrude from the disk portion 16 of the rotary body 15, and the elastic contact of the slider 7 is provided at a cutout portion of the disk portion 16 between the two business types 23 and 24. The arms 17a and 17b are vertically separated and protrude so that the contact portions of their tips are separated from each other.
該摺動子17は、略円環状の基部(図示せず)を円板部
16並びに両業態23.24に埋設した一枚の良導電性
金属薄板より戊っており、インサート成形の容易さを計
ると共に、前記ケース1の第1突出部6aと衝合してス
トッパー機能をはたす両業態23.24の補強を兼ねる
ようにしである。The slider 17 has a substantially annular base (not shown) embedded in the disc part 16 and both types of business 23 and 24, and is made of a single sheet of highly conductive metal thin plate, which facilitates insert molding. In addition to this, it also serves as reinforcement for the two business types 23 and 24, which abut against the first protrusion 6a of the case 1 and function as a stopper.
(この摺動子の埋設構造については本願出願人が先に出
願した実願昭53−109799号に詳述されているの
で、必要ならばこれを参照されたい。(The buried structure of this slider is detailed in U.S. Pat. No. 53-109799, which was previously filed by the applicant of the present application, so please refer to this if necessary.
)25は良導電性の金属板よりなるカバーで、前記端子
7、絶縁基板10、回転体15を載置した状態で、ケー
ス1の開放面を覆うようにケース1に取付けられる。) 25 is a cover made of a highly conductive metal plate, which is attached to the case 1 so as to cover the open surface of the case 1 with the terminal 7, the insulating substrate 10, and the rotating body 15 placed thereon.
26はカバー1の円板部27の中心孔、28は円板部2
7の切欠き、29.29は円板部27から垂下した中間
端子、29 aは中間端子29に設けられたケース1底
面との保合部、29 bは同じく中間端子29先端の折
曲げ弾性部である。26 is the center hole of the disc part 27 of the cover 1, 28 is the disc part 2
Notch 7, 29.29 is an intermediate terminal hanging from the disc part 27, 29a is a retaining part provided on the intermediate terminal 29 with the bottom surface of the case 1, and 29b is the bending elasticity of the tip of the intermediate terminal 29. Department.
そして、カバー25は、その切欠き28に前記ケース1
の第1突出部6aを、その中心孔26に回転体15の操
作軸部20を、又、雨中間端子29.29をケース1の
切溝2,2にそれぞれ係合・位置決めさせてケース1と
組合わされ、中間端子29の弾性ある係合部29 aを
ケース1の底面と所謂スナップイン嵌合で係合させるこ
とにより、簡易な操作で確実にケース1とカバー25と
を一体化するように構威しである。Then, the cover 25 has the case 1 in the notch 28.
The first protruding part 6a of the case 1 is engaged with the operating shaft part 20 of the rotating body 15 in its center hole 26, and the rain intermediate terminals 29 and 29 are respectively engaged and positioned in the grooves 2, 2 of the case 1. By engaging the elastic engaging portion 29a of the intermediate terminal 29 with the bottom surface of the case 1 in a so-called snap-in fitting, the case 1 and the cover 25 can be reliably integrated with a simple operation. It is in full swing.
又、組立て状態において前記回転体15の操作軸20は
カバー1の中心孔26から所定量突出し、手指或いは治
具で操作可能となっている。In the assembled state, the operating shaft 20 of the rotating body 15 protrudes a predetermined amount from the center hole 26 of the cover 1, and can be operated by hand or with a jig.
以上の説明から明らかなように、組立てに際しては、ケ
ース1内に端子7,7、絶縁基板10.回転体15を順
次所定位置に挿入・載置し、然る後、カバー25をケー
ス1にスナップイン嵌合で取付ければ、組立ては半田付
け、絞め、溶着等の手段を全く要せず簡易に終了するよ
うになっており、又、端子7と絶縁基板10の裏面の電
極パターン12との接触も、カバー25でケース1の底
面部3.側へ押圧された回転体15により両者7,12
は確実に電気的に接続するようになっている。As is clear from the above description, during assembly, the case 1 includes the terminals 7, 7, the insulating substrate 10. By sequentially inserting and placing the rotating body 15 in the predetermined position and then attaching the cover 25 to the case 1 by snap-fitting, assembly is simple and does not require any means such as soldering, tightening, or welding. Furthermore, the contact between the terminal 7 and the electrode pattern 12 on the back surface of the insulating substrate 10 is also prevented by the cover 25 at the bottom surface 3. of the case 1. Due to the rotating body 15 being pushed to the side, both 7 and 12
is designed to ensure a reliable electrical connection.
□そして、操作軸部20を回動すれば、抵抗体
11と、集電体を兼ねるカバーの円板部27.25とに
摺動子17が弾接しつつ回動し、所望の抵抗値を得られ
るようになっていると共に、回転体15の所定量以上の
回動は、回転体15の突起23又は24とケース1の第
1突出部6aとの係合によって規制されるようになって
いる。□ Then, when the operation shaft section 20 is rotated, the slider 17 is rotated while being in elastic contact with the resistor 11 and the disk section 27.25 of the cover which also serves as a current collector, and the desired resistance value is obtained. In addition, rotation of the rotating body 15 beyond a predetermined amount is regulated by engagement between the protrusion 23 or 24 of the rotating body 15 and the first protrusion 6a of the case 1. There is.
ここで、参考までに申し述べると該実施例の可変抵抗器
はケース1の直径が8mm、ケース1の高さが2mm強
い超小型のものである。For reference, the variable resistor of this embodiment is extremely small, with the case 1 having a diameter of 8 mm and the height of the case 1 being 2 mm.
叙上のように本考案によれば、端子7と絶縁基板10裏
面の電極パターン12とを、カバー25とケース1と間
に挟持された回転体15により押圧・接触させる構成な
ので、端子7と電極パターン12との接続に半田付け、
鮫め等の手段を全く要せず、組立て作業性が極めて良好
であるし、端子7をケース1に固着するための絞め、溶
着等の手段を要しないので、この点でも作業性が良い。As described above, according to the present invention, since the terminal 7 and the electrode pattern 12 on the back side of the insulating substrate 10 are pressed and brought into contact by the rotating body 15 held between the cover 25 and the case 1, Soldering the connection with the electrode pattern 12,
The assembly workability is extremely good since no means such as locking is required, and there is no need for means such as tightening or welding for fixing the terminal 7 to the case 1, so the workability is good in this respect as well.
又、カバ=25が集電体を兼ね、且つ、該カバー25と
一体の中間端子29がケース1への取付は片を兼ねてい
るため、部品点数が削減出来る。Further, since the cover 25 also serves as a current collector, and the intermediate terminal 29 integrated with the cover 25 also serves as a piece for attachment to the case 1, the number of parts can be reduced.
又、カバー25をスナップイン嵌合でケース1に取付け
るだけで、各部品が半田付け、絞め、溶着等の手段を要
せず組立てられるため、この種の微小な部品で構成され
る可変抵抗器にあっては組立作業性が著しく良好となり
、従来のように組立てに熟練を要せず、簡易且つ確実に
可変抵抗器が組立てられ、総じて組立て作業性が良好で
、構造の簡易な小型の可変抵抗器を提供し得るといく実
用上顕著な効果を奏する。In addition, by simply attaching the cover 25 to the case 1 with a snap-in fit, each component can be assembled without the need for means such as soldering, tightening, or welding. The assembly workability has been significantly improved, and the variable resistor can be easily and reliably assembled without requiring any skill as in the past. This has a remarkable practical effect in that it can provide a resistor.
図面は何れも本考案の一実施例に係り、第1図は全体の
分解斜視図、第2図は端子の斜視図、第3図はケースの
平面図、第4図は絶縁基板の裏面図、第5図は回転体の
正面図、第6図は端子並びに絶縁基板を載置した状態の
ケースの平面図、第7図は組立て状態を示す正面図、第
8図は組立て状態の要部側断面図である。
1・・・・・・ケース、3・・・・・・底面部、7・・
・・・・端子、7a・・・・・・接続部、7b・・・・
・・端子部、10・・・・・・絶縁基板、11・曲・抵
抗体、12・・・・・・電極パターン、15・・・・・
・回転体、17・・・・・・摺動子、25・・・・・・
カバー、29・・・・・・中間端子、29a・・・・・
・係合部。The drawings all relate to one embodiment of the present invention; Fig. 1 is an exploded perspective view of the whole, Fig. 2 is a perspective view of the terminal, Fig. 3 is a plan view of the case, and Fig. 4 is a back view of the insulating substrate. , Fig. 5 is a front view of the rotating body, Fig. 6 is a plan view of the case with terminals and an insulating board placed on it, Fig. 7 is a front view showing the assembled state, and Fig. 8 is the main part of the assembled state. FIG. 1...Case, 3...Bottom part, 7...
...Terminal, 7a...Connection part, 7b...
...Terminal section, 10...Insulating substrate, 11.Bend/resistor, 12...Electrode pattern, 15...
・Rotating body, 17...Slider, 25...
Cover, 29...Intermediate terminal, 29a...
・Engagement part.
Claims (1)
に接触部を載置し且つ端子部が前記底面部を貫通して外
部に導出された金属製の端子と、前記端子の接触部上に
載置された絶縁基板と、絶縁基板の表側に形成された弧
状の抵抗体と、該抵抗体の端部と電気的に接続され且つ
絶縁基板の裏面側まで連続して形成された電極パターン
と、ケースの開放面を覆う金属製のカバーと、ケースの
底面部とカバーとの間に回転自在に保持された絶縁性合
成樹脂よりなる回転体と、該回転体に取付けられ且つ前
記抵抗体とカバーとにそれぞれ弾接する接触部を有する
摺動子と、前記カバーと一体の中間端子と、該中間端子
に設けたカバーとの係止部とを備え、ケースとカバーと
の間に位置規制された回転体により前記絶縁基板裏面の
電極パターンと前記端子の接触部とを押圧・接触させた
ことを特徴とする小型可変抵抗器。A case made of insulating synthetic resin, a metal terminal having a contact portion placed on the bottom surface of the case and having a terminal portion extending outside through the bottom surface portion, and a metal terminal on the contact portion of the terminal. an insulating substrate placed on the insulating substrate, an arc-shaped resistor formed on the front side of the insulating substrate, and an electrode pattern electrically connected to the end of the resistor and continuously formed to the back side of the insulating substrate. a metal cover covering the open surface of the case; a rotating body made of insulating synthetic resin rotatably held between the bottom of the case and the cover; and a resistor attached to the rotating body. a slider having a contact portion that makes elastic contact with the case and the cover, an intermediate terminal integrated with the cover, and a locking portion with the cover provided on the intermediate terminal, and a position regulating member between the case and the cover. A small variable resistor, characterized in that the electrode pattern on the back surface of the insulating substrate and the contact portion of the terminal are pressed and brought into contact by a rotating body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18153778U JPS582012Y2 (en) | 1978-12-23 | 1978-12-23 | small variable resistor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18153778U JPS582012Y2 (en) | 1978-12-23 | 1978-12-23 | small variable resistor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5594008U JPS5594008U (en) | 1980-06-30 |
JPS582012Y2 true JPS582012Y2 (en) | 1983-01-13 |
Family
ID=29193215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18153778U Expired JPS582012Y2 (en) | 1978-12-23 | 1978-12-23 | small variable resistor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS582012Y2 (en) |
-
1978
- 1978-12-23 JP JP18153778U patent/JPS582012Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5594008U (en) | 1980-06-30 |
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