JPH01110704A - Variable resistor - Google Patents
Variable resistorInfo
- Publication number
- JPH01110704A JPH01110704A JP62268750A JP26875087A JPH01110704A JP H01110704 A JPH01110704 A JP H01110704A JP 62268750 A JP62268750 A JP 62268750A JP 26875087 A JP26875087 A JP 26875087A JP H01110704 A JPH01110704 A JP H01110704A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- molded
- sliding piece
- variable resistor
- insert
- 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.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 3
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- Adjustable Resistors (AREA)
Abstract
Description
【発明の詳細な説明】
怠ｌ上立■月公亙
本発明は、絶縁基板の表面に設けた略円弧状の抵抗体上
で、摺動子を回動させることにより抵抗値を調整可能と
した可変抵抗器に関する。[Detailed Description of the Invention] The present invention makes it possible to adjust the resistance value by rotating a slider on a substantially arc-shaped resistor provided on the surface of an insulating substrate. related to variable resistors.
従来の技′とその問題点
従来、この種の可変抵抗器としては、摺動子をステンレ
ス等の導電性金属板からプレスにて打ち抜き、個々のも
のをパーツフィーダ等で組立て工程へ送り、ここで摺動
子をロータに組み入れると共にこのロータを絶縁基板上
にハトメ等の金具を用いて回動自在に取り付けていた。Conventional Techniques and Problems Conventionally, this type of variable resistor has been manufactured by punching sliders from conductive metal plates such as stainless steel using a press, sending the individual pieces to the assembly process using a parts feeder, etc. The slider was assembled into the rotor, and the rotor was rotatably mounted on an insulating substrate using metal fittings such as eyelets.
しかしながら、これでは、組み立て工程において摺動子
、ロータ、絶縁基板という三つの部品を個々に取り扱わ
なければならず、同時に工程数自体も多く、不良品発生
の原因ともなり、製品の信頼性にも問題点を有していた
。However, this requires the three parts, the slider, rotor, and insulating substrate, to be handled individually in the assembly process, which also requires a large number of steps, which can lead to defective products and reduce product reliability. It had some problems.
間 代を解 するための手段
そこで、本発明に係る可変抵抗器は、中心軸を有するロ
ータの樹脂成形時に予め形成された摺動子をインサート
モールドして一体的に固定し、抵抗体、端子を有する絶
縁基板上に前記ロータをその中心軸を支点として回動可
能に取り付けたことを特徴とする。A variable resistor according to the present invention has a slider formed in advance during resin molding of a rotor having a central axis, which is fixed integrally by insert molding, and a resistor and a terminal. The invention is characterized in that the rotor is rotatably mounted on an insulating substrate having a central axis as a fulcrum.
作用
以上の構成において、組立て工程では摺動子を備えたロ
ータと抵抗体、端子を備えた絶縁基板という２部品のみ
を扱うこととなり、部品点数、工程数共に減少する。Effects In the above configuration, only two parts, the rotor with the slider, the resistor, and the insulating board with the terminals, are handled in the assembly process, which reduces both the number of parts and the number of steps.
尖舅贋
以下、本発明に係る可変抵抗器の一実施例について添付
図面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, one embodiment of a variable resistor according to the present invention will be described with reference to the accompanying drawings.
第１図、第２図において、ロータ１は、ポリフェニレン
サルファイド、ポリエーテルエーテルケトン等の熱可塑
性樹脂にて一体的に成形したもので、表面にドライバ等
を当てて回動させるための調整溝２を有し、裏面に中心
軸３を有している。In FIGS. 1 and 2, a rotor 1 is integrally molded from a thermoplastic resin such as polyphenylene sulfide or polyether ether ketone, and has adjustment grooves 2 for rotating it by applying a driver or the like to its surface. It has a central axis 3 on the back surface.
摺動子５は、ステンレス等の導電性金属板からなり、中
心に筒状軸部６を有し、周辺部に接点部７を有している
。この摺動子５はフープ材を連続的に打ち抜いて成形さ
れ、前記ロータ１の樹脂成形時に裏面の凹所４にインサ
ートモールドされ、ロータ１に一体的に固定される。
。The slider 5 is made of a conductive metal plate such as stainless steel, and has a cylindrical shaft portion 6 at the center and a contact portion 7 at the periphery. The slider 5 is formed by continuously punching out a hoop material, and is insert molded into the recess 4 on the back surface when the rotor 1 is molded with resin, and is integrally fixed to the rotor 1.
.
絶縁基板１０は、ポリフェニレンサルファイド。The insulating substrate 10 is made of polyphenylene sulfide.
ジアリルフタレート等の樹脂にて成形したもので、中心
孔１１を有し、表面には抵抗体１５が設けられ、かつ、
側方にはインサートモールドしたリード端子１６．１７
．１８が導出されている。抵抗体１５は、例えば、予め
耐熱性シート上にカーボン系抵抗ペーストを印刷、焼付
けして略円弧状に形成したものを、絶縁基板１０の成形
時に金型にインサートして一体化したもので、その後耐
熱性シートは剥離される。It is molded from resin such as diallyl phthalate, has a center hole 11, has a resistor 15 on its surface, and
Insert molded lead terminals 16 and 17 on the sides
．． 18 have been derived. The resistor 15 is, for example, formed by printing and baking a carbon-based resistance paste on a heat-resistant sheet in advance to form a substantially arc shape, and inserting it into a mold during molding of the insulating substrate 10 to integrate the resistor 15. The heat-resistant sheet is then peeled off.
また、リード端子１６．１７は抵抗体１５の両端に電気
的に接続されている。いまひとつのリード端子１８は一
端部が中心孔１１に露出した状態でモールドされている
。Further, lead terminals 16 and 17 are electrically connected to both ends of the resistor 15. The other lead terminal 18 is molded with one end exposed to the center hole 11.
以上の各構成からなるロータ１と絶縁基板１ｏとは、ロ
ータ１の中心軸３を絶縁基板１０の中心孔１１に挿入し
、中心軸３の下端を融着することにより一体的に組み立
てられる。この様に組み立てた状態において、ロータ１
は中心軸３を支点として回動自在であり、同時に摺動子
５の接点部７が抵抗体１５上を摺動する。これにて抵抗
値が調整きれる。The rotor 1 and the insulating substrate 1o having each of the above configurations are integrally assembled by inserting the central shaft 3 of the rotor 1 into the central hole 11 of the insulating substrate 10 and fusing the lower end of the central shaft 3. In this assembled state, rotor 1
is rotatable about the center shaft 3 as a fulcrum, and at the same time the contact portion 7 of the slider 5 slides on the resistor 15. This allows you to adjust the resistance value.
また、摺動子５は筒状軸部６の下端がリード端子１８に
圧接し、両者の電気的な接続が図られる。Further, the lower end of the cylindrical shaft portion 6 of the slider 5 is brought into pressure contact with the lead terminal 18, thereby establishing an electrical connection between the two.
第３図は、本実施例としての可変抵抗器の製造工程を概
略的に示す。FIG. 3 schematically shows the manufacturing process of the variable resistor according to this embodiment.
第３図中左方のロールに巻回されているフープ材は矢印
方向に引き出され、プレス加工工程［Ｉ］にて所定の形
状に打ち抜かれ、摺動子５とされる。The hoop material wound around the left roll in FIG. 3 is pulled out in the direction of the arrow and punched into a predetermined shape in a press working process [I] to form the slider 5.
次に、成形工程［Ｉ］にて摺動子５をインサートした状
態でロータ１が成形される。このロータ１は次の組入れ
工程［１［］に搬送され、同時に別ラインにて製造され
た絶縁基板１０（この状態では、抵抗体１５．リード端
子１６．１７．１８を備えている）も組入れ工程［１［
Ｉ］に搬送される。ここで、ロータ１が絶縁基板１０に
組み入れられ、固定工程［ＩＶ］にて中心軸３の下端が
熱融着きれる。Next, in a molding step [I], the rotor 1 is molded with the slider 5 inserted. This rotor 1 is conveyed to the next assembly process [1[], and at the same time, the insulating substrate 10 (equipped with resistors 15, lead terminals 16, 17, 18 in this state) manufactured on a separate line is also assembled. Process [1[
I]. Here, the rotor 1 is assembled into the insulating substrate 10, and the lower end of the central shaft 3 is heat-sealed in a fixing step [IV].
なお、本発明に係る可変抵抗器は前記実施例に限定され
るものではなく、その要旨の範囲内で種々に変形するこ
とができる。Note that the variable resistor according to the present invention is not limited to the above-mentioned embodiments, and can be variously modified within the scope of the gist.
例えば、ロータ１を絶縁基板１０に取り付けるには、中
心軸３を融着する以外に、ハトメを用いても良いし、中
心軸３は金属材をロータ１にインサートモールドしたも
のであっても良い。For example, to attach the rotor 1 to the insulating substrate 10, instead of fusing the center shaft 3, an eyelet may be used, or the center shaft 3 may be made by insert molding a metal material onto the rotor 1. .
また、絶縁基板１０は抵抗体１５を直接スクリーン印刷
して設けたものであっても良く、その材質も任意である
。Further, the insulating substrate 10 may be provided by directly screen-printing the resistor 15, and its material may be arbitrary.
分割ヱυ裏呆
以上の説明で明らかな様に、本発明によれば、摺動子は
予めロータに固定されているため、ロータと絶縁基板と
の二種類の部品を組み立てるのみで良く、組立て工程で
の取り扱い部品点数が減少すると共に組立て工程数も減
少し、連続ラインでの製造が可能となる。同時に、不良
品発生の頻度が低下し、製品の信頼性も向上することと
なる。As is clear from the above explanation, according to the present invention, since the slider is fixed to the rotor in advance, it is only necessary to assemble two types of parts, the rotor and the insulating substrate, and the assembly is easy. The number of parts handled in the process is reduced, and the number of assembly steps is also reduced, making it possible to manufacture on a continuous line. At the same time, the frequency of defective products will decrease and product reliability will improve.
図面は本発明に係る可変抵抗器の一実施例を示し、第１
図は組立て時におけるロータと絶縁基板との断面図、第
２図は第１ｒｙＪのものを組み立てた状態の断面図、第
３図は製造工程の概略説明図である。
１・・・ロータ、３・・・中心軸、５・・・摺動子、７
・・・接点部、１０・・・絶縁基板、１１・・・中心孔
、１５・・・抵抗体。
特許出願人 株式会社村田製作所The drawings show one embodiment of the variable resistor according to the present invention, and the first embodiment shows the variable resistor according to the present invention.
The figure is a sectional view of the rotor and the insulating substrate during assembly, FIG. 2 is a sectional view of the assembled state of the first ryJ, and FIG. 3 is a schematic explanatory diagram of the manufacturing process. 1... Rotor, 3... Center shaft, 5... Slider, 7
... Contact portion, 10 ... Insulating substrate, 11 ... Center hole, 15 ... Resistor. Patent applicant Murata Manufacturing Co., Ltd.
Claims (1)
、ロータの回動につれて摺動子が摺動可能な可変抵抗器
において、 中心軸を有するロータの樹脂成形時に予め形成された摺
動子をインサートモールドして一体的に固定し、抵抗体
，端子を有する絶縁基板上に前記ロータをその中心軸を
支点として回動可能に取り付けたことを特徴とする可変
抵抗器。(1) In a variable resistor whose slider can slide as the rotor rotates on a roughly arc-shaped resistor provided on the surface of an insulating substrate, the slider is formed in advance during resin molding of the rotor having a central axis. 1. A variable resistor characterized in that a slider is integrally fixed by insert molding, and the rotor is rotatably mounted on an insulating substrate having a resistor and a terminal so as to be rotatable about its central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62268750A JPH01110704A (en) | 1987-10-23 | 1987-10-23 | Variable resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62268750A JPH01110704A (en) | 1987-10-23 | 1987-10-23 | Variable resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01110704A true JPH01110704A (en) | 1989-04-27 |
Family
ID=17462816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62268750A Pending JPH01110704A (en) | 1987-10-23 | 1987-10-23 | Variable resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01110704A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2016067769A1 (en) * | 2014-10-31 | 2017-07-27 | 株式会社村田製作所 | Rotating variable resistor and method for manufacturing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6041012B2 (en) * | 1975-12-08 | 1985-09-13 | チバ・ガイギ−・アクチエンゲゼルシヤフト | conductive metal composition |
| JPS6140003A (en) * | 1984-07-31 | 1986-02-26 | アルプス電気株式会社 | Method of producing variable resistor |
-
1987
- 1987-10-23 JP JP62268750A patent/JPH01110704A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6041012B2 (en) * | 1975-12-08 | 1985-09-13 | チバ・ガイギ−・アクチエンゲゼルシヤフト | conductive metal composition |
| JPS6140003A (en) * | 1984-07-31 | 1986-02-26 | アルプス電気株式会社 | Method of producing variable resistor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2016067769A1 (en) * | 2014-10-31 | 2017-07-27 | 株式会社村田製作所 | Rotating variable resistor and method for manufacturing the same |
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