JPH05243018A - Variable type electronic part - Google Patents

Variable type electronic part

Info

Publication number
JPH05243018A
JPH05243018A JP4044680A JP4468092A JPH05243018A JP H05243018 A JPH05243018 A JP H05243018A JP 4044680 A JP4044680 A JP 4044680A JP 4468092 A JP4468092 A JP 4468092A JP H05243018 A JPH05243018 A JP H05243018A
Authority
JP
Japan
Prior art keywords
rotor member
base plate
operating body
operation body
electronic part
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.)
Granted
Application number
JP4044680A
Other languages
Japanese (ja)
Other versions
JP3137714B2 (en
Inventor
Tamotsu Yoshimura
保 吉村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rohm Co Ltd
Original Assignee
Rohm Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rohm Co Ltd filed Critical Rohm Co Ltd
Priority to JP04044680A priority Critical patent/JP3137714B2/en
Publication of JPH05243018A publication Critical patent/JPH05243018A/en
Application granted granted Critical
Publication of JP3137714B2 publication Critical patent/JP3137714B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Adjustable Resistors (AREA)

Abstract

PURPOSE:To provide a variable type electronic part such as a rheostat, by which a pickup mistake by a vacuum suction type collet can be prevented, and that the electronic part can be manufactured easily. CONSTITUTION:A rotational operating body 4 formed by integrally molding a thick wall-shaped operating section 12 made of a synthetic resin onto the top face of a base plate 11 made of a metal plate is superposed onto the top face of an upward opened bowllike rotor member 3 rotatably installed onto the top face of a substrate 2, and an engaging pawl 13 formed to either one or both of the base plate 11 and the rotor member 3 is folded toward the opposite side, thus engaging the rotational operating body 14 with the rotor member 3 in an unturned manner. Engaging grooves 14 to a driver tool are formed to the operating section 12 of the rotational operating body 4.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、抵抗値を調節できるよ
うにしたチップ型の可変抵抗器とか、静電容量を調節で
きるようにしたチップ型の可変コンデンサのように、基
板の上面に調節用のロータ部材を回転自在に装着して、
ロータ部材を回転することにより、抵抗値や静電容量等
を調節するようにした可変式電子部品の改良に関するも
のである。
BACKGROUND OF THE INVENTION The present invention relates to a chip type variable resistor whose resistance value can be adjusted or a chip type variable capacitor whose electrostatic capacitance can be adjusted. Rotatably attach the rotor member for
The present invention relates to an improvement of a variable electronic component in which a resistance value, an electrostatic capacitance, etc. are adjusted by rotating a rotor member.

【0002】[0002]

【従来の技術】チップ型の可変抵抗器は、一般に、セラ
ミック製の基板の上面に、平面視U字状の抵抗膜を形成
すると共に、前記抵抗膜に対する接触部を備えた上向き
開口で椀状の金属板製ロータ部材を回転自在に装着した
構成になっており、ロータ部材の上部のうち円周方向に
沿って等間隔隔てた2ヵ所の部位又は4個所の部位に、
半径方向に延びる平行な切り線を一対ずつ切り込み形成
し、この切り線で挟まれた部位を断面L字状に凹ませる
ことにより、ドライバ工具に対する係合溝を形成するよ
うにしている。
2. Description of the Related Art In general, a chip-type variable resistor has a U-shaped resistance film in a plan view formed on an upper surface of a ceramic substrate, and a bowl-shaped opening having a contact portion for the resistance film. The rotor member made of a metal plate is rotatably mounted, and two or four portions of the upper portion of the rotor member are equally spaced along the circumferential direction,
A pair of parallel cutting lines extending in the radial direction is cut and formed, and a portion sandwiched by the cutting lines is recessed into an L-shaped cross section to form an engagement groove for the driver tool.

【0003】しかし、このように、金属板製のロータ部
材に係合溝を凹み形成した構成ではドライバ工具がロー
タ部材の係合溝の確実に係合するよう係合溝を深い寸法
に形成すると、当該係合溝の内側面の個所にロータ部材
の内外に連通する隙間が生じるため、ロータ部材を基板
に装着するに際してロータ部材を真空吸着式コレットに
てピックアップしたり、組み立てられた抵抗器をプリン
ト基板に取付けるために真空吸着式コレットにてピック
アップしたりするに際して、ピックアップミスが発生し
易いと言う問題があった。
However, as described above, in the structure in which the engaging groove is formed in the rotor member made of a metal plate, if the engaging groove is formed in a deep dimension so that the driver tool surely engages with the engaging groove of the rotor member. Since there is a gap that communicates with the inside and outside of the rotor member at a position on the inner surface of the engagement groove, when the rotor member is mounted on the substrate, the rotor member is picked up by a vacuum suction collet or the assembled resistor is installed. When picking up with a vacuum suction type collet for mounting on a printed circuit board, there is a problem that a pick-up error is likely to occur.

【0004】これに対して先行技術としての実開昭61
−61808号公報には、ロータ部材の上面に、ドライ
バ工具に対する係合溝を備えた合成樹脂製の回転操作体
を一体的に成形することが記載されており、このように
構成すると、回転操作体における係合溝の個所に内外連
通する隙間が生じることなく、ドライバ工具に対する係
合溝を深い寸法に形成することができるから、真空吸着
式コレットによるピックアップミスを生じることなく、
ロータ部材の回転操作を確実に行うことができる。
On the other hand, as a prior art, the actual development 61
No. 61808 discloses that a rotary operation body made of synthetic resin, which is provided with an engagement groove for a driver tool, is integrally formed on the upper surface of a rotor member. Since the engaging groove for the driver tool can be formed in a deep dimension without forming a gap that communicates with the inside and outside of the engaging groove portion in the body, a pickup error due to the vacuum suction collet does not occur,
The rotating operation of the rotor member can be reliably performed.

【0005】[0005]

【発明が解決しようとする課題】しかし、この先行技術
は、上記のような利点を有する反面、ロータ部材の上面
に操作体を一体成形することが頗る厄介であると言う問
題があった。つまり、ロータ部材の上面に回転操作体を
一体成形することは、ロータ部材を、当該ロータ部材の
上面に接当する一方の金型とロータ部材の下面に接当す
る他方の金型とで挟み付けて、一方の金型に形成したキ
ャビティに溶融合成樹脂を注入すると言う射出成形法で
行われるが、上記先行技術では、ロータ部材を椀状に形
成して、これに、抵抗膜に対する接触部を形成した後に
おいて操作体を一体成形しなければならず、複雑な形状
のロータ部材を一対の金型にて正確な姿勢に挟み付ける
ことが厄介であった。
However, this prior art has the above-mentioned advantages, but on the other hand, there is a problem that it is awkward to integrally form the operating body on the upper surface of the rotor member. In other words, integrally molding the rotary operation body on the upper surface of the rotor member means that the rotor member is sandwiched between one mold that contacts the upper surface of the rotor member and the other mold that contacts the lower surface of the rotor member. It is performed by an injection molding method in which a molten synthetic resin is injected into a cavity formed in one of the molds. Since the operating body must be integrally formed after the formation of the rotor, it is troublesome to sandwich the rotor member having a complicated shape between the pair of molds in an accurate posture.

【0006】また、ロータ部材の外周部には摺動部が下
向きに凹み形成されていて、この摺動部の個所でロータ
部材の上部が切り欠かれた状態になっているため、前記
一方の金型のキャビティから溶融合成樹脂が流れ出さな
いようにするためには、金型を極めて複雑な形状にしな
ければならないのであり、これら金型に対するロータ部
材の姿勢合わせが困難であることと金型が複雑化するこ
ととにより、ロータ部材に回転操作体を一体成形するこ
とが極めて厄介なのであった。
Further, since a sliding portion is formed downward on the outer peripheral portion of the rotor member, and the upper portion of the rotor member is notched at the sliding portion, one of the above In order to prevent the molten synthetic resin from flowing out of the mold cavity, the mold must have an extremely complicated shape, and it is difficult to align the rotor member with respect to these molds. However, it has been extremely difficult to integrally form the rotary operation body on the rotor member.

【0007】本発明は、真空吸着式コレットに対する吸
着性能を向上した可変式電子部品を、至極容易に製造で
きる形態にて提供することを目的とするものである。
It is an object of the present invention to provide a variable electronic component having improved suction performance for a vacuum suction collet in a form that can be manufactured extremely easily.

【0008】[0008]

【課題を解決するための手段】この目的を達成するため
本発明は、基板の上面に、金属板にて上向き開口の椀状
に形成した調節用のロータ部材を回転可能に装着して成
る可変式電子部品において、前記ロータ部材の上面に、
金属板製ベース板の上面に厚肉状の合成樹脂製操作部を
一体成形して成る回転操作体を、当該回転操作体におけ
るベース板と前記ロータ部材とのうち一方に形成した係
止爪を他方に対して折り曲げ係止することにて回転不能
に係着し、更に、前記回転操作体の操作部には、ドライ
バ工具に対する係合溝を形成する構成にした。
In order to achieve this object, the present invention comprises a variable rotor member, which is rotatably mounted on the upper surface of a substrate and is formed in the shape of a bowl having an upward opening made of a metal plate. In the electronic electronic component, on the upper surface of the rotor member,
A rotary operation body formed by integrally molding a thick synthetic resin operation section on the upper surface of a metal plate base plate, and a locking claw formed on one of the base plate and the rotor member of the rotation operation body. The other is fixed by bending and locking so as to be non-rotatably engaged, and further, an engaging groove for a driver tool is formed in the operating portion of the rotating operation body.

【0009】[0009]

【発明の作用・効果】このように構成すると、回転操作
体における操作部が合成樹脂製であることにより、係合
溝を、当該係合溝の個所に回転操作体の内外に連通する
隙間が生じない状態にて深く形成できるから、回転操作
体の上面を真空吸着式コレットにて吸着することにて、
電子部品を組立たりプリント基板に電子部品を取付けた
りするに際して、真空吸着式コレットによるピックアッ
プミスが発生することを格段に低減できると共に、ドラ
イバ工具によるロータ部材の回転操作を確実に行うこと
ができる。
With this structure, since the operating portion of the rotary operation body is made of synthetic resin, there is a gap for communicating the engagement groove with the location of the engagement groove inside and outside the rotary operation body. Since it can be deeply formed in a state where it does not occur, by adsorbing the upper surface of the rotary operation body with a vacuum adsorption type collet,
When an electronic component is assembled or an electronic component is attached to a printed circuit board, it is possible to significantly reduce the occurrence of a pickup error due to the vacuum suction type collet, and it is possible to reliably perform the rotation operation of the rotor member by the driver tool.

【0010】そして、回転操作体のベース板とロータ部
材とのうち一方に形成した係止爪を他方に対して折り曲
げ係止することにより、回転操作体をロータ部材に取付
けるようにしたものであるから、ロータ部材を複雑な形
状に加工した後であっても、回転操作体をロータ部材に
対して正確な姿勢で迅速に取付けることができるのであ
り、また、回転操作体における合成樹脂製の操作部は、
平板状のベース板に対して一体成形するものであるか
ら、合成樹脂製の操作部を一体成形することを、簡単な
構造の金型にて至極容易に行うことができるのであり、
これらロータ部材に対する回転操作体の取付けを確実且
つ容易に行えることと、回転操作体における操作部の成
形を至極容易に行えることとが相俟って、製造コストを
低減できることになる。
Then, the locking claw formed on one of the base plate and the rotor member of the rotary operation body is bent and locked to the other, whereby the rotary operation body is attached to the rotor member. Therefore, even after processing the rotor member into a complicated shape, the rotating operation body can be quickly attached to the rotor member in an accurate posture, and the operation made of synthetic resin in the rotating operation body can be performed. Department is
Since it is formed integrally with the flat plate-like base plate, it is possible to form the operation portion made of synthetic resin integrally with the die having a simple structure, very easily.
Combined with the reliable and easy attachment of the rotary operation body to these rotor members and the extremely easy molding of the operating portion of the rotary operation body, the manufacturing cost can be reduced.

【0011】従って本発明によると、組立工程やプリン
ト基板への実装工程等に際してのピックアップミスを生
じることなく抵抗値等の調節を確実に行えるようにした
可変式電子部品を、安価に製造できる効果を有する。
Therefore, according to the present invention, it is possible to inexpensively manufacture the variable electronic component in which the resistance value and the like can be surely adjusted without causing a pickup error during the assembly process or the mounting process on the printed circuit board. Have.

【0012】[0012]

【実施例】次に、本発明をチップ型可変抵抗器に適用し
た場合の実施例を図面に基づいて説明する。図1〜図5
は第1の実施例を示しており、これらの図において符号
1は、セラミック製の基板2と薄金属体製のロータ部材
3と回転操作体4とを備えた可変抵抗器を示す。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment in which the present invention is applied to a chip type variable resistor will be described with reference to the drawings. 1 to 5
Shows the first embodiment, and in these figures, reference numeral 1 denotes a variable resistor provided with a substrate 2 made of ceramic, a rotor member 3 made of a thin metal body, and a rotary operation body 4.

【0013】前記基板2の略中心部には上下に開口した
貫通孔5が穿設されており、基板2の上面に、前記貫通
孔5を囲うようにした平面視U字状の抵抗膜6を形成す
る一方、基板2の一側面に、前記抵抗膜6の両端に対す
る一対の端子電極膜7を形成している。前記基板2の下
面には金属板製の中心端子板8が配設されており、この
中心端子板8には、前記貫通孔5に嵌まる支軸9が一体
的に造形されている。
A through hole 5 which is opened vertically is formed at a substantially central portion of the substrate 2, and a U-shaped resistance film 6 in a plan view which surrounds the through hole 5 is formed on the upper surface of the substrate 2. On the other hand, a pair of terminal electrode films 7 for both ends of the resistance film 6 are formed on one side surface of the substrate 2. A central terminal plate 8 made of a metal plate is arranged on the lower surface of the substrate 2, and a spindle 9 fitted into the through hole 5 is integrally formed on the central terminal plate 8.

【0014】前記ロータ部材3は、薄金属板にて上向き
開口の椀状で且つ平面視リング状に形成されており、そ
の上端に形成したフランジ3aの一部を下向きに凹ませ
ることにより、前記抵抗膜6に対する接触部3bを形成
し、ロータ部材3を前記支軸9に被嵌して、支軸9の上
端をかしめ広げることにより、ロータ部材3を基板2に
対して回転自在に装着し、更に、該ロータ部材3におけ
るフランジ3aと傾斜部3cとの連接部のうち円周方向
に沿った3ヵ所の部位に、上下方向に開口した係止孔1
0を切り抜き形成している。
The rotor member 3 is formed of a thin metal plate in the shape of a bowl having an upward opening and in the shape of a ring in a plan view. A contact portion 3b for the resistance film 6 is formed, the rotor member 3 is fitted on the support shaft 9, and the upper end of the support shaft 9 is caulked and widened so that the rotor member 3 is rotatably mounted on the substrate 2. Further, in the connecting portion between the flange 3a and the inclined portion 3c of the rotor member 3, there are three locking holes 1 opened in the vertical direction at the three positions along the circumferential direction.
0 is cut out and formed.

【0015】前記回転操作体4は、金属板にてリング状
に形成したベース板11の上面に、耐熱性の合成樹脂に
て厚肉のリング状に形成した操作部12を一体成形する
ことによって形成されており、ベース板11のうち平面
視で前記ロータ部材3の各係止孔10に重なった3個所
の部位に、前記係止孔10に上方から嵌まる係止爪13
を切り起こし形成して、該係止爪13をロータ部材3に
おけるフランジ3aの下面に向けて半径外向きに折り曲
げることにより、回転操作体4をロータ部材3に対して
回転不能に係着する一方、前記操作部12には、十字状
のドライバ工具(図示せず)に対する平面視十字状の係
合溝14を凹み形成している。
The rotating operation body 4 is formed by integrally molding an operation portion 12 formed of a heat-resistant synthetic resin in a thick ring shape on the upper surface of a base plate 11 formed of a metal plate in a ring shape. The locking claws 13 that are formed in the base plate 11 and that are fitted in the locking holes 10 from above are formed at three portions of the base plate 11 that overlap with the locking holes 10 of the rotor member 3 in plan view.
Is cut and raised, and the locking claw 13 is radially outwardly bent toward the lower surface of the flange 3a of the rotor member 3, so that the rotation operating body 4 is non-rotatably attached to the rotor member 3. The operation portion 12 is formed with a cross-shaped engagement groove 14 in plan view for a cross-shaped driver tool (not shown).

【0016】前記ベース板11の内周縁には、操作部1
2の固着性を向上するための突起15を複数個造形して
おり、また、操作部12の内周縁には、ドライバ工具の
挿入をガイドするための傾斜面16を形成しており、更
に、前記ロータ部材3のうち係止孔10の個所に連接し
た舌片17を、前記係止爪13の下面に接当するように
折り曲げている。
At the inner peripheral edge of the base plate 11, the operating portion 1
A plurality of protrusions 15 for improving the sticking property of 2 are formed, and an inclined surface 16 for guiding the insertion of a driver tool is formed on the inner peripheral edge of the operating portion 12. The tongue piece 17 connected to the locking hole 10 of the rotor member 3 is bent so as to contact the lower surface of the locking claw 13.

【0017】なお、前記回転操作体4の製造は、次のよ
うにして行うことができる。すなわち、帯状の金属板を
プレス加工することにより、図2に示すように、タイバ
ーA1にて連結された一対のフレーム枠A2,A2に連
結片A3を介してベース板11を一定間隔で連結した状
態のフープ材Aを形成し、このフープ材Aをその長手方
向に沿って間欠的に移送する途次、ベース板11を上下
一対の金型(図示せず)にて挟み付けて、上方に位置し
た金型の下面に形成したキャビティに溶融合成樹脂を注
入することにより、操作部12をベース板11に一体的
に成形して、次いで、ベース板11を連結片A2の個所
で切り離すと言う工程で行うことができる。
The rotary operation body 4 can be manufactured as follows. That is, by pressing a band-shaped metal plate, as shown in FIG. 2, the base plate 11 is connected to the pair of frame frames A2 and A2 connected by the tie bar A1 at regular intervals via the connection piece A3. The hoop material A in the state is formed, and while the hoop material A is intermittently transferred along the longitudinal direction thereof, the base plate 11 is sandwiched by a pair of upper and lower molds (not shown) and is moved upward. By injecting molten synthetic resin into the cavity formed on the lower surface of the positioned mold, the operating portion 12 is integrally molded with the base plate 11, and then the base plate 11 is cut off at the connecting piece A2. It can be done in process.

【0018】以上の構成において、回転操作体4におけ
る操作部12の係合溝14は単に凹んだ状態に過ぎず、
ドライバ工具が確実に係合するよう係合溝14の深さを
深くしても、係合溝14の個所で回転操作体4の内外に
連通する隙間が生じることはないから、真空吸着式コレ
ット18の下端面を操作部12の上面に接当した状態で
吸着することにより、回転操作体4を取付けたロータ部
材2を基板2に装着したり、可変抵抗器1をプリント基
板に取付けたりするに際して、真空吸着式コレット18
によるピックアップミスが発生することを格段に低減で
きる。
In the above structure, the engaging groove 14 of the operating portion 12 of the rotary operation body 4 is merely a recessed state,
Even if the depth of the engaging groove 14 is increased so that the driver tool can be reliably engaged, there is no gap communicating with the inside and outside of the rotary operation body 4 at the engaging groove 14, so that the vacuum suction collet is used. By adsorbing the lower end surface of 18 in contact with the upper surface of the operation portion 12, the rotor member 2 having the rotating operation body 4 attached thereto can be mounted on the board 2 or the variable resistor 1 can be mounted on the printed board. At the time of vacuum suction collet 18
It is possible to significantly reduce the occurrence of pick-up errors due to.

【0019】そして、回転操作体4におけるベース板1
1の係止爪13を折り曲げることにより、回転操作体4
をロータ部材3に取付けるもので、ロータ部材3に摺動
部3aを形成した状態であっても、ロータ部材3に対し
て回転操作体4を確実に取付けることができ、しかも、
前記したように、ベース板11に対する操作部12の一
体成形は、略平板状のフープ材Aを一対の金型にて挟み
付けることによって行うことができ、金型の構造を複雑
にする必要がないから、合成樹脂製の操作部12を備え
た可変抵抗器1を、至極容易に製造することができるの
である。
Then, the base plate 1 in the rotary operation body 4
By bending the locking claw 13 of No. 1, the rotary operation body 4
Is attached to the rotor member 3, and even if the sliding portion 3a is formed on the rotor member 3, the rotary operation body 4 can be attached to the rotor member 3 with reliability, and
As described above, the operation part 12 can be integrally formed with the base plate 11 by sandwiching the substantially flat plate-shaped hoop material A between a pair of molds, and it is necessary to complicate the structure of the molds. Therefore, the variable resistor 1 including the operating portion 12 made of synthetic resin can be manufactured extremely easily.

【0020】図6に示す第2の実施例は、ベース板11
に半径外向きの係止爪13を形成して、この係止爪13
をロータ部材3におけるフランジ3aの下面に向けて半
径内向きに折り曲げることにより、回転操作体4をロー
タ部材3に係着するようにした例であり、この場合に
は、ロータ部材3におけるフランジ3aに、前記係止爪
13が嵌まり込む係止溝19を形成することにより、回
転操作体4がロータ部材2に対して回転不能となるよう
にしている。
The second embodiment shown in FIG. 6 is a base plate 11
A locking claw 13 is formed on the outside of the radius, and the locking claw 13 is formed.
Is an example in which the rotary operation body 4 is engaged with the rotor member 3 by bending the rotor inwardly toward the lower surface of the flange 3a of the rotor member 3, and in this case, the flange 3a of the rotor member 3 is engaged. In addition, by forming the locking groove 19 into which the locking claw 13 is fitted, the rotation operation body 4 cannot rotate with respect to the rotor member 2.

【0021】図7〜図8に示す第3の実施例は、ロータ
部材3のフランジ3aに半径外向きの係止爪13を形成
する一方、回転操作体4における操作部12の外周面に
半径内向きの凹所20を形成して、この凹所20の個所
で前記係止爪13をベース板11の上面に向けて半径内
向きに折り曲げるようにしたもので、この場合も、ベー
ス板11に、前記係止爪13が嵌まり込むようにした係
止溝19を形成して、回転操作体4がロータ部材3に対
して回転不能となるようにしている。
In the third embodiment shown in FIGS. 7 to 8, a radially outward locking claw 13 is formed on the flange 3a of the rotor member 3, while a radius is formed on the outer peripheral surface of the operating portion 12 of the rotary operation body 4. An inward recess 20 is formed, and the locking claw 13 is bent radially inward toward the upper surface of the base plate 11 at the recess 20. In this case also, the base plate 11 Further, a locking groove 19 is formed so that the locking claw 13 is fitted therein, so that the rotary operation body 4 cannot rotate with respect to the rotor member 3.

【0022】上記の各実施例から明らかなように、係止
爪13はベース板11とロータ部材3とのうちいずれか
一方に形成しても良いし、両方に形成しても良いのであ
る。なお、基板にロータ部材を装着してから、ロータ部
材に回転操作体を係着するようにしても良く、このよう
にすると、回転操作体には支軸をかしめけ付けるための
ポンチが嵌まる孔を形成する必要はないので、ベース板
及び操作部とは非リング状に形成しても良い。
As is apparent from the above-described embodiments, the locking claws 13 may be formed on either one of the base plate 11 and the rotor member 3, or both of them. In addition, after mounting the rotor member on the substrate, the rotary operation member may be attached to the rotor member. In this case, the rotary operation member is fitted with a punch for caulking the support shaft. Since it is not necessary to form the hole, the base plate and the operating portion may be formed in a non-ring shape.

【図面の簡単な説明】[Brief description of drawings]

【図1】第1の実施例に係る可変抵抗器の分離斜視図で
ある。
FIG. 1 is an exploded perspective view of a variable resistor according to a first embodiment.

【図2】回転操作体の製造の手順を示す斜視図である。FIG. 2 is a perspective view showing a procedure for manufacturing a rotary operation body.

【図3】可変抵抗器の平面図である。FIG. 3 is a plan view of a variable resistor.

【図4】図3のIV−IV視断面図である。4 is a sectional view taken along line IV-IV in FIG.

【図5】可変抵抗器の組立状態を示す図である。FIG. 5 is a diagram showing an assembled state of a variable resistor.

【図6】第2の実施例を示す要部断面図である。FIG. 6 is a cross-sectional view of essential parts showing a second embodiment.

【図7】第3の実施例を示す要部断面図である。FIG. 7 is a cross-sectional view of essential parts showing a third embodiment.

【図8】図7のVIII−VIII視断面図である。8 is a sectional view taken along line VIII-VIII of FIG.

【符号の説明】[Explanation of symbols]

1 可変式電子部品の一例としての可変抵抗器 2 基板 3 ロータ部材 4 回転操作体 6 抵抗膜 9 支軸 10 係止孔 11 ベース板 12 操作部 13 係止爪 14 係合溝 A フープ材 1 Variable resistor as an example of variable electronic component 2 Substrate 3 Rotor member 4 Rotating operation body 6 Resistance film 9 Support shaft 10 Locking hole 11 Base plate 12 Operating part 13 Locking claw 14 Engaging groove A Hoop material

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】基板の上面に、金属板にて上向き開口の椀
状に形成した調節用のロータ部材を回転可能に装着して
成る可変式電子部品において、前記ロータ部材の上面
に、金属板製ベース板の上面に厚肉状の合成樹脂製操作
部を一体成形して成る回転操作体を、当該回転操作体に
おけるベース板と前記ロータ部材とのうち一方に形成し
た係止爪を他方に対して折り曲げ係止することにて回転
不能に係着し、更に、前記回転操作体の操作部には、ド
ライバ工具に対する係合溝を形成したことを特徴とする
可変式電子部品。
1. A variable electronic component in which an adjusting rotor member, which is formed in a bowl shape having an upward opening with a metal plate, is rotatably mounted on an upper surface of a substrate, and a metal plate is provided on the upper surface of the rotor member. A rotary operating body formed by integrally molding a thick synthetic resin operating portion on the upper surface of a base plate made of metal, and a locking claw formed on one of the base plate and the rotor member of the rotary operating body on the other side. A variable electronic component characterized in that it is non-rotatably attached by being bent and locked to it, and further, an engaging groove for a driver tool is formed in the operating portion of the rotary operating body.
JP04044680A 1992-03-02 1992-03-02 Variable electronic components Expired - Fee Related JP3137714B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04044680A JP3137714B2 (en) 1992-03-02 1992-03-02 Variable electronic components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04044680A JP3137714B2 (en) 1992-03-02 1992-03-02 Variable electronic components

Publications (2)

Publication Number Publication Date
JPH05243018A true JPH05243018A (en) 1993-09-21
JP3137714B2 JP3137714B2 (en) 2001-02-26

Family

ID=12698155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP04044680A Expired - Fee Related JP3137714B2 (en) 1992-03-02 1992-03-02 Variable electronic components

Country Status (1)

Country Link
JP (1) JP3137714B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11162565B2 (en) 2016-03-30 2021-11-02 Ntn Corporation Electric actuator
US11215266B2 (en) 2016-03-30 2022-01-04 Ntn Corporation Electric actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11162565B2 (en) 2016-03-30 2021-11-02 Ntn Corporation Electric actuator
US11215266B2 (en) 2016-03-30 2022-01-04 Ntn Corporation Electric actuator

Also Published As

Publication number Publication date
JP3137714B2 (en) 2001-02-26

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