JP3440884B2 - Variable resistor - Google Patents
Variable resistorInfo
- Publication number
- JP3440884B2 JP3440884B2 JP16624099A JP16624099A JP3440884B2 JP 3440884 B2 JP3440884 B2 JP 3440884B2 JP 16624099 A JP16624099 A JP 16624099A JP 16624099 A JP16624099 A JP 16624099A JP 3440884 B2 JP3440884 B2 JP 3440884B2
- Authority
- JP
- Japan
- Prior art keywords
- slider
- stopper
- variable resistor
- substrate
- piece
- 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 - Lifetime
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Adjustable Resistors (AREA)
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【発明の属する技術分野】本発明は薄型で小型の可変抵
抗器、特に摺動子の回転角度を規制するためのストッパ
構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin and small variable resistor, and more particularly to a stopper structure for regulating a rotation angle of a slider.
【０００２】[0002]
【従来の技術】従来、この種の可変抵抗器として、特開
平１１−１６７１０号公報のように、基板上に設けた略
円弧上の抵抗体に、この抵抗体の中心部を支点として回
転自在に支持された摺動子のアーム部を接触させた可変
抵抗器が知られている。摺動子は、一枚の導電性薄板か
ら、外周部に形成されたフランジ部と中央部に形成され
たほぼ皿状の突部とを有するドライバープレートと、接
点部を有する略リング状のアーム部とを連結した状態で
打ち抜くとともに、連結部で１８０度折り返して皿状突
部をアーム部から下方へ突出させたものであり、この皿
状突部を基板に回転可能に取り付けてある。基板の底面
には金属端子が取り付けられ、この金属端子の一部を基
板の側面に沿って表面側に延長し、この延長部分を基板
の中心寄りに傾けることでストッパ部としてある。そし
て、摺動子の連結部の側面を金属端子のストッパ部に当
接させることで、摺動子の回転角度を規制している。2. Description of the Related Art Heretofore, as a variable resistor of this type, as in Japanese Patent Laid-Open No. 11-16710, a substantially arcuate resistor provided on a substrate is rotatable about the center of the resistor. There is known a variable resistor in which the arm portion of a slider supported by the is contacted. The slider includes a driver plate having a flange portion formed on an outer peripheral portion and a substantially dish-shaped protrusion portion formed at a central portion, and a substantially ring-shaped arm having a contact portion, from a single conductive thin plate. The plate-shaped protrusion is punched in a state of being connected to the plate portion, and is folded back by 180 degrees at the connecting part to project the dish-shaped protrusion downward from the arm portion. The dish-shaped protrusion is rotatably attached to the substrate. A metal terminal is attached to the bottom surface of the substrate, a part of the metal terminal is extended along the side surface of the substrate to the front side, and the extended portion is tilted toward the center of the substrate to form a stopper portion. Then, the rotation angle of the slider is regulated by bringing the side surface of the connecting portion of the slider into contact with the stopper portion of the metal terminal.
【０００３】[0003]
【発明が解決しようとする課題】上記可変抵抗器の場
合、アーム部のばね長さを確保するために連結部も二股
状に分離されており、この連結部を金属端子のストッパ
部に当接させる構造となっている。そのため、摺動子の
連結部が金属端子のストッパ部に当接した時、連結部に
ストレスが加わり、連結部に連なる接点部にもストレス
が波及し、接点圧が変動して接触抵抗が大きくなった
り、接触不良が発生するといった問題があった。In the case of the variable resistor described above, the connecting portion is also divided into two parts in order to secure the spring length of the arm portion, and the connecting portion abuts the stopper portion of the metal terminal. It has a structure that allows it. Therefore, when the connecting part of the slider comes into contact with the stopper part of the metal terminal, stress is applied to the connecting part, and stress also spreads to the contact part connected to the connecting part, and the contact pressure fluctuates and the contact resistance increases. There was a problem such as deterioration and contact failure.
【０００４】また、二個の連結部は互いに離れた位置に
設けられるので、金属端子のストッパ部と当接する一方
の連結部の縁部と他方の連結部の縁部との中心角が大き
く、摺動子の回転角度が制約を受ける。所定の回転角度
を確保するには、金属端子のストッパ部の幅寸法を小さ
くする必要があり、端子のストッパ部の強度が低下する
という問題があった。Further, since the two connecting portions are provided at positions distant from each other, the central angle between the edge portion of one connecting portion and the edge portion of the other connecting portion that abut the stopper portion of the metal terminal is large, The rotation angle of the slider is restricted. In order to secure a predetermined rotation angle, it is necessary to reduce the width dimension of the stopper portion of the metal terminal, which causes a problem that the strength of the stopper portion of the terminal is reduced.
【０００５】そこで、本発明の目的は、摺動子が基板の
ストッパ部に当たった時のストレスが接点部に波及する
のを抑制し、摺動子の回転角度の確保と基板のストッパ
部の強度確保とを両立できる可変抵抗器を提供すること
にある。Therefore, an object of the present invention is to prevent the stress when the slider hits the stopper portion of the substrate from spreading to the contact portion, to secure the rotation angle of the slider and to prevent the stopper portion of the substrate. It is to provide a variable resistor capable of ensuring both strength.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、請求項１に記載の発明は、基板上に設けた略円弧上
の抵抗体に、この抵抗体の中心部を支点として回転自在
に支持された摺動子のアーム部を接触させた可変抵抗器
であって、上記摺動子は、一枚の導電性薄板から、外周
部に形成されたフランジ部と中央部に形成されたほぼ皿
状の突部とを有するドライバープレートと、接点部を有
する略リング状のアーム部とを連結した状態で打ち抜く
とともに、連結部で折り返して上記皿状突部をアーム部
から下方へ突出させ、この皿状突部を上記基板に取り付
けた可変抵抗器において、上記基板上には、基板の底面
に沿って取り付けられた金属端子の一端部を基板の側面
に沿って上方へ折り曲げた起立片よりなるストッパ部が
突設され、この起立片の両側部は板厚方向に折り曲げら
れ、上記摺動子の連結部は二股状に形成され、上記フラ
ンジ部には連結部の間から半径方向に突出するストッパ
片が一体に形成され、このストッパ片の側部が上記基板
のストッパ部の両側部に当接して摺動子の回転角度が規
制されることを特徴とする可変抵抗器を提供する。In order to achieve the above-mentioned object, the invention according to claim 1 is such that a resistor having a substantially arc shape provided on a substrate is rotatable about a central portion of the resistor. A variable resistor in which an arm portion of a supported slider is brought into contact with the slider, wherein the slider is formed of a single conductive thin plate, and has a flange portion formed on an outer peripheral portion and a substantially central portion formed on a central portion. While punching out with a driver plate having a dish-shaped protrusion and a substantially ring-shaped arm having a contact point connected, the plate-shaped protrusion is folded back at the connecting portion to project downward from the arm, In the variable resistor in which the dish-shaped protrusion is attached to the board, the bottom surface of the board is on the board.
Attach one end of the metal terminal installed along the side of the board
A stopper part consisting of a standing piece that is bent upward along the direction is projected, and both sides of this standing piece are bent in the plate thickness direction.
Is, the connecting portion of the slider is formed in a bifurcated shape, the said flange stopper piece projecting radially from between the coupling portion are integrally formed, the sides of the stopper piece of the substrate stopper Provided is a variable resistor characterized in that the rotation angle of a slider is regulated by contacting both sides of the portion .
【０００７】本発明では摺動子側のストッパが連結部で
はなく、フランジ部から連結部の間を介して半径方向に
突出するストッパ片であるため、ストッパ片が接点部を
持つアーム部から独立した部分に設けられる。そのた
め、ストッパ片が基板のストッパ部に当接した際、その
ストレスはストッパ片からフランジ部に波及しても、接
点部に波及することがない。そのため、接点圧が変動し
て接触抵抗が大きくなったり、接触不良が発生するとい
った問題を解消できる。また、摺動子のストッパ片の一
方の縁部と他方の縁部との中心角を小さくできるので、
摺動子の回転角度を大きく取れる。そのため、基板のス
トッパ部の幅寸法を小さくする必要がなく、基板のスト
ッパ部の強度を確保することができる。In the present invention, since the stopper on the slider side is not the connecting portion but the stopper piece protruding in the radial direction from the flange portion through the connecting portion, the stopper piece is independent of the arm portion having the contact portion. It is provided in the part where Therefore, when the stopper piece comes into contact with the stopper portion of the substrate, the stress does not spread to the contact portion even if it spreads from the stopper piece to the flange portion. Therefore, it is possible to solve the problems that the contact pressure fluctuates, the contact resistance increases, and contact failure occurs. Further, since the central angle between one edge and the other edge of the stopper piece of the slider can be reduced,
The rotation angle of the slider can be made large. Therefore, it is not necessary to reduce the width dimension of the stopper portion of the substrate, and the strength of the stopper portion of the substrate can be secured.
【０００８】請求項２のように、摺動子のストッパ片を
斜め下方へ折り曲げると、ストッパ片が基板のストッパ
部の根元部付近に当接するので、基板のストッパ部にか
かる負担が小さくなり、基板のストッパ部の耐久性向上
に役立つ。When the stopper piece of the slider is bent obliquely downward as in claim 2, the stopper piece comes into contact with the vicinity of the base of the stopper portion of the substrate, so that the load on the stopper portion of the substrate is reduced. Useful for improving the durability of the stopper part of the board.
【０００９】本発明では、基板に突設されたストッパ部
を、基板の底面に沿って取り付けられた金属端子の一端
部を基板の側面に沿って上方へ折り曲げた起立片とし、
起立片の両側部を板厚方向に折り曲げ、この両側部に摺
動子のストッパ片の側部を当接させるよう構成してい
る。そのため、端子の起立片の断面係数が大きくなり、
起立片の曲げ剛性が高くなり、摺動子のストッパ片が当
たった時の起立片の変形が少なくなる。In the present invention, the stopper portion projecting from the board is a standing piece obtained by bending one end of the metal terminal attached along the bottom surface of the board upward along the side surface of the board.
Folding the both side portions of the standing piece in the thickness direction, it is configured to abut the side of the stopper piece of the slider on the side portions
It Therefore , the section modulus of the standing piece of the terminal becomes large,
The bending rigidity of the upright piece is increased, and deformation of the upright piece when the stopper piece of the slider hits is reduced.
【００１０】請求項３のように、ストッッパ部を設けた
金属端子に、基板の中央穴に配置されたハトメ部を形成
し、ハトメ部を摺動子の皿状突部に形成された穴に嵌合
してかしめることにより、摺動子を金属端子に回転可能
に取り付けるようにすれば、摺動子取付用の金属端子が
ストッパ部を兼ねるので、部品数が少なくて済み、可変
抵抗器を小型化できる。According to a third aspect of the present invention, a metal terminal provided with a stopper is provided with an eyelet portion arranged in the central hole of the substrate, and the eyelet portion is formed in the hole formed in the dish-shaped protrusion of the slider. If the slider is rotatably attached to the metal terminal by fitting and crimping, the metal terminal for attaching the slider also serves as the stopper part, so the number of parts is small and the variable resistor Can be downsized.
【００１１】[0011]
【発明の実施の形態】図１，図２は本発明にかかる可変
抵抗器の一例を示す。この可変抵抗器は、抵抗体３を有
する絶縁性の基板１と、摺動子１０と、金属端子２０と
で構成されている。1 and 2 show an example of a variable resistor according to the present invention. This variable resistor includes an insulating substrate 1 having a resistor 3, a slider 10 and a metal terminal 20.
【００１２】抵抗体３は基板１の上面に穴２を中心とし
た略円弧状に塗布され、焼付けされて形成されている。
抵抗体３の両端部には、基板１の側面から裏面にかけて
形成された外部電極４，５が接続されている。The resistor 3 is formed by applying it on the upper surface of the substrate 1 in a substantially arcuate shape centered on the hole 2 and baking it.
External electrodes 4 and 5 formed from the side surface to the back surface of the substrate 1 are connected to both ends of the resistor 3.
【００１３】摺動子１０は、一枚の導電性薄板からドラ
イバープレート１１とアーム部１２とを二股状の連結部
１３を介して連結した状態で打ち抜くとともに、アーム
部１２をドライバープレート１１の下面側へ連結部１３
で１８０度折り返したものである。ドライバープレート
１１は、外周部に形成されたフランジ部１１ａと中央部
に形成されたほぼ皿状の突部１１ｂとを有しており、フ
ランジ部１１ａには連結部１３の間から半径方向に突出
するストッパ片１１ｃが一体に形成されている。この実
施例のストッパ片１１ｃは斜め下方へ折り曲げられてい
る。また、アーム部１２は、下方へ突き出した接点部１
２ａを有する略リング状に形成されており、接点部１２
ａを分断するように円弧状のスリット１２ｂが形成さ
れ、抵抗体３に対して電気的な抵抗変化の少ない多点接
触を確保している。The slider 10 is punched in a state in which the driver plate 11 and the arm portion 12 are connected to each other through a bifurcated connecting portion 13 from a single conductive thin plate, and the arm portion 12 is attached to the lower surface of the driver plate 11. Connection part 13 to the side
It has been folded back 180 degrees. The driver plate 11 has a flange portion 11a formed on the outer peripheral portion and a substantially dish-shaped protrusion 11b formed on the central portion, and the flange portion 11a protrudes radially from between the connecting portions 13. The stopper piece 11c is integrally formed. The stopper piece 11c of this embodiment is bent obliquely downward. In addition, the arm portion 12 has a contact portion 1 protruding downward.
The contact portion 12 is formed in a substantially ring shape having 2a.
An arcuate slit 12b is formed so as to divide a, and a multipoint contact with a small electrical resistance change is ensured with respect to the resistor 3.
【００１４】アーム部１２を連結部１３で１８０度折り
返すことにより、皿状突部１１ｂはアーム部１２の間に
挿入される。皿状突部１１ｂの側部には、９０度間隔で
４本の突片１１ｄが形成され、対向する２本の突片１１
ｄの下面にアーム部１２の接点部１２ａと連結部１３と
の中間部が当接支持されている。なお、別の対向する２
本の突片１１ｄはアーム部１２を支持する機能はない。
上記４本の突片１１ｄは、皿状突部１１ｂを絞り加工し
た後、フランジ部１１ａから皿状突部１１ｂにかけて下
方へ切り落とす（打ち抜く）ことにより形成されたもの
である。これら突片１１ｄは十字状のドライバー溝１１
ｅの底部を構成している。By folding the arm portion 12 back through the connecting portion 13 by 180 degrees, the dish-shaped protrusion 11b is inserted between the arm portions 12. Four protruding pieces 11d are formed on the side of the dish-shaped protruding portion 11b at intervals of 90 degrees, and the two protruding pieces 11 facing each other are formed.
An intermediate portion between the contact portion 12a of the arm portion 12 and the connecting portion 13 is abutted and supported on the lower surface of d. In addition, another 2 opposite
The projecting piece 11d does not have a function of supporting the arm portion 12.
The four projecting pieces 11d are formed by drawing the dish-shaped projection 11b and then cutting (punching) downward from the flange 11a to the dish-shaped projection 11b. These protrusions 11d are cross-shaped driver grooves 11
It constitutes the bottom of e.
【００１５】上記構成よりなる摺動子１０は、基板１の
穴２に挿通した金属端子２０のハトメ部２１を、皿状突
部１１ｂの中心部に形成された穴１１ｆに係合させてカ
シメることで、基板１に回転可能に取り付けられる。端
子２０は基板１の底面に配置されており、端子２０の一
端部には基板１の側面に沿って上方へ折り曲げた起立片
（ストッパ部）２２が形成されている。起立片２２の両
側部２２ａは基板１の中心方向に向かって板厚方向に折
り曲げられ、この両側部２２ａに摺動子１０のストッパ
片１１ｃの側部が当接することで摺動子１０の回転角度
が規制される。上記のように起立片２２の両側部２２ａ
を板厚方向に折り曲げることで、起立片２２の剛性が増
し、後述するようにストッパ片１１ｃが起立片２２に当
たった時の起立片２２の変形を抑制できる。In the slider 10 having the above structure, the eyelet portion 21 of the metal terminal 20 inserted into the hole 2 of the substrate 1 is engaged with the hole 11f formed in the central portion of the dish-shaped protrusion 11b to be caulked. By doing so, it is rotatably attached to the substrate 1. The terminal 20 is arranged on the bottom surface of the substrate 1, and a standing piece (stopper portion) 22 bent upward along the side surface of the substrate 1 is formed at one end of the terminal 20. Both side portions 22a of the upright piece 22 are bent in the plate thickness direction toward the center of the substrate 1, and the side portions of the stopper piece 11c of the slider 10 come into contact with the both side portions 22a to rotate the slider 10. The angle is regulated. As described above, both side portions 22a of the standing piece 22
Is bent in the plate thickness direction, the rigidity of the upright piece 22 is increased, and deformation of the upright piece 22 when the stopper piece 11c hits the upright piece 22 can be suppressed as described later.
【００１６】なお、端子２０のストッパ部の形状として
は、上記起立片２２のように両側部２２ａを折り曲げた
形状に限らず、例えば図４の（ａ）のように起立片２２
を横断面円弧状に形成してもよいし、（ｂ）のように横
断面Ｖ字形に形成してもよい。The shape of the stopper portion of the terminal 20 is not limited to the shape in which both side portions 22a are bent like the upright piece 22 described above. For example, the upright piece 22 as shown in FIG.
May have an arcuate cross section, or may have a V-shaped cross section as shown in FIG.
【００１７】アーム部１２は、自然状態において皿状突
部１１ｂより下方へ突出しており、摺動子１０を基板１
に取り付けることで、接点部１２ａはアーム部１２のば
ね力だけでなく、突片１１ｄの押し付け力によって、抵
抗体３に強く圧接する。そのため、接点部１２ａと抵抗
体３との接触圧を大きくすることができ、電気的な接触
抵抗や摺動ノイズを低減できる。また、接点部１２ａと
抵抗体３との接触圧が大きいので、半田付け時に誤って
抵抗体３に付着したフラックスを接点部１２ａで掻き取
ることができる。In a natural state, the arm portion 12 projects downward from the dish-shaped projection portion 11b, and the slider 10 is mounted on the substrate 1.
The contact portion 12a is strongly pressed against the resistor 3 by the pressing force of the protruding piece 11d as well as the spring force of the arm portion 12. Therefore, the contact pressure between the contact portion 12a and the resistor 3 can be increased, and electrical contact resistance and sliding noise can be reduced. Further, since the contact pressure between the contact portion 12a and the resistor 3 is large, it is possible to scrape off the flux that has accidentally adhered to the resistor 3 at the contact portion 12a during soldering.
【００１８】上記可変抵抗器の抵抗値を変化させるに
は、例えばプラスドライバーをドライバー溝１１ｅに係
合させて摺動子１０を回すことで、調整可能である。摺
動子１０を終端まで回転させると、図３に示すように、
ストッパ片１１ｃの一方の縁部が端子２０の起立片２２
の一方の側部２２ａに当接し、このとき摺動子１０の接
点部１２ａが抵抗体３の一方の端部に接触する。ストッ
パ片１１ｃが起立片２２の側部２２ａに当接した時、ス
トッパ片１１ｃにはストレスがかかるが、ストッパ片１
１ｃは摺動子１０のドライブプレート１１から延びてい
るので、ストッパ片１１ｃのストレスが接点部１２ａに
直接波及することがない。そのため、接点圧が変動して
接触抵抗が大きくなるなどの問題を解消できる。また、
ストッパ片１１ｃが起立片２２に当接した時、起立片２
２にもストレスがかかるが、ストッパ片１１ｃが斜め下
方へ折り曲げられているので、ストッパ片１１ｃは起立
片２２の根元部付近に当接する。つまり、図２の（ｃ）
に示すように、起立片２２の根元部からストッパ片１１
ｃとの当接点までの距離ｈを短くできることで曲げモー
メントが小さくなるため、起立片２２に対する負荷を軽
減できる。さらに、起立片２２は両側の折り曲げ部２２
ａによって断面係数が大きくなるので、曲げ剛性が高
く、起立片２２の変形を防止できる。In order to change the resistance value of the variable resistor, it can be adjusted, for example, by engaging a plus driver in the driver groove 11e and turning the slider 10. When the slider 10 is rotated to the end, as shown in FIG.
One edge of the stopper piece 11c is a standing piece 22 of the terminal 20.
One side part 22a of the resistor 10 is abutted, and at this time, the contact part 12a of the slider 10 contacts one end part of the resistor 3. When the stopper piece 11c comes into contact with the side portion 22a of the upright piece 22, stress is applied to the stopper piece 11c.
Since 1c extends from the drive plate 11 of the slider 10, the stress of the stopper piece 11c does not directly affect the contact portion 12a. Therefore, it is possible to solve the problem that the contact pressure fluctuates and the contact resistance increases. Also,
When the stopper piece 11c contacts the upright piece 22, the upright piece 2
2 is also stressed, but since the stopper piece 11c is bent obliquely downward, the stopper piece 11c contacts the vicinity of the base of the upright piece 22. That is, (c) of FIG.
As shown in FIG.
Since the bending moment can be reduced by shortening the distance h to the contact point with c, the load on the standing piece 22 can be reduced. In addition, the upright pieces 22 have bent portions 22 on both sides.
Since the section modulus increases due to a, the bending rigidity is high, and the standing piece 22 can be prevented from being deformed.
【００１９】図３に示すように、摺動子１０のストッパ
片１１ｃの両側の縁部の中心角αは、連結部１３の両側
の縁部の中心角βに比べて小さくできるので、摺動子１
０の回転角度を大きく取ることができる。そのため、端
子２０の起立片（ストッパ部）２２の幅Ｄを強度上必要
な寸法に設定でき、ストッパ部２２の強度を十分に確保
することができる。As shown in FIG. 3, since the central angle α of both edges of the stopper piece 11c of the slider 10 can be made smaller than the central angle β of both edges of the connecting portion 13, sliding is possible. Child 1
A large rotation angle of 0 can be taken. Therefore, the width D of the standing piece (stopper portion) 22 of the terminal 20 can be set to a dimension required for strength, and the strength of the stopper portion 22 can be sufficiently secured.
【００２０】本発明は上記実施例に限定されるものでは
ない。上記実施例では、基板側のストッパ部として端子
の起立片を利用したが、基板から一体にストッパ用の突
起を突設し、この突起に摺動子のストッパ片を当接させ
るようにしてもよい。また、上記実施例では、抵抗体３
の両端を外部へ接続するために外部電極４，５を形成し
たが、これに代えて基板１に外部接続用の端子をインサ
ート成形などによって固定し、これら端子を抵抗体と接
続してもよい。The present invention is not limited to the above embodiment. In the above embodiment, the upright piece of the terminal is used as the stopper portion on the board side. However, a stopper projection may be integrally provided on the board, and the stopper piece of the slider may be brought into contact with this projection. Good. Further, in the above embodiment, the resistor 3
Although the external electrodes 4 and 5 are formed to connect both ends of the substrate to the outside, the terminals for external connection may be fixed to the substrate 1 by insert molding or the like, and these terminals may be connected to the resistor. .
【００２１】[0021]
【発明の効果】以上の説明で明らかなように、本発明に
よれば、摺動子のストッパ片を接点アーム部から独立し
た部分に設けてあるので、摺動子のストッパ片が基板の
ストッパ部に当たった時のストレスが接点部に波及せ
ず、接点圧が変動して接触抵抗が大きくなったり、接触
不良が発生するといった不具合を解消できる。また、摺
動子のストッパ片の両側の縁部の中心角は、連結部をス
トッパ部とした場合に比べて小さくできるので、摺動子
の回転角度を大きく取ることができ、基板のストッパ部
の幅寸法を十分に確保することができる。つまり、摺動
子の回転角度確保と基板のストッパ部の強度確保とを両
立できる。さらに、基板に突設されたストッパ部を、基
板の底面に沿って取り付けられた金属端子の一端部を基
板の側面に沿って上方へ折り曲げた起立片とし、起立片
の両側部を板厚方向に折り曲げ、この両側部に摺動子の
ストッパ片の側部を当接させるようにしたので、起立片
の曲げ剛性が高くなり、摺動子のストッパ片が当たった
時の起立片の変形が少なくなる。 As is apparent from the above description, according to the present invention, since the stopper piece of the slider is provided in the portion independent from the contact arm portion, the stopper piece of the slider is the stopper of the substrate. It is possible to solve the problems that the stress when hitting a portion does not spread to the contact portion, the contact pressure fluctuates, the contact resistance increases, and the contact failure occurs. Further, since the central angle of the edges on both sides of the stopper piece of the slider can be made smaller than in the case where the connecting portion is used as the stopper portion, the rotation angle of the slider can be made large and the stopper portion of the substrate It is possible to secure a sufficient width dimension. That is, it is possible to secure both the rotation angle of the slider and the strength of the stopper portion of the substrate. In addition, the stopper part protruding from the board
Place one end of the metal terminal installed along the bottom of the plate
A standing piece that is bent upward along the side of the plate.
Bend both sides of the to the thickness direction,
Since the side of the stopper piece is abutted, the standing piece
Bending rigidity of the slider has increased, and the stopper piece of the slider has hit
Deformation of the standing pieces is reduced.
【図１】本発明にかかる可変抵抗器の一例の一部を破断
した斜視図である。FIG. 1 is a partially cutaway perspective view of an example of a variable resistor according to the present invention.
【図２】本発明にかかる可変抵抗器の一例を示し、
（ａ）は平面図、（ｂ）は正面図、（ｃ）はＡ−Ａ断面
図、（ｄ）は底面図である。FIG. 2 shows an example of a variable resistor according to the present invention,
(A) is a plan view, (b) is a front view, (c) is an AA cross-sectional view, and (d) is a bottom view.
【図３】図１の可変抵抗器の摺動子を一方向に回転させ
た状態の平面図である。FIG. 3 is a plan view showing a state where the slider of the variable resistor shown in FIG. 1 is rotated in one direction.
【図４】端子のストッパ部の他の例の平面図である。FIG. 4 is a plan view of another example of the stopper portion of the terminal.
１ 基板 ３ 抵抗体 １０ 摺動子 １１ａ フランジ部 １１ｂ 皿状突部 １１ｃ ストッパ片 １２ アーム部 １２ａ 接点部 １３ 連結部 ２０ 端子 ２２ 起立片（ストッパ部） 1 substrate 3 resistor 10 Slider 11a Flange part 11b Plate-shaped protrusion 11c Stopper piece 12 Arm 12a contact part 13 Connection 20 terminals 22 Standing piece (stopper part)
Claims (3)
抵抗体の中心部を支点として回転自在に支持された摺動
子のアーム部を接触させた可変抵抗器であって、上記摺
動子は、一枚の導電性薄板から、外周部に形成されたフ
ランジ部と中央部に形成されたほぼ皿状の突部とを有す
るドライバープレートと、接点部を有する略リング状の
アーム部とを連結した状態で打ち抜くとともに、連結部
で折り返して上記皿状突部をアーム部から下方へ突出さ
せ、この皿状突部を上記基板に取り付けた可変抵抗器に
おいて、 上記基板上には、基板の底面に沿って取り付けられた金
属端子の一端部を基板の側面に沿って上方へ折り曲げた
起立片よりなるストッパ部が突設され、この起立片の両
側部は板厚方向に折り曲げられ、 上記摺動子の連結部は二股状に形成され、上記フランジ
部には連結部の間から半径方向に突出するストッパ片が
一体に形成され、このストッパ片の側部が上記基板のス
トッパ部の両側部に当接して摺動子の回転角度が規制さ
れることを特徴とする可変抵抗器。1. A variable resistor comprising a substantially circular arc-shaped resistor provided on a substrate, and an arm portion of a slider rotatably supported about a central portion of the resistor as a fulcrum. The slider comprises a single conductive thin plate, a driver plate having a flange portion formed in the outer peripheral portion and a substantially dish-shaped protrusion portion formed in the central portion, and a substantially ring-shaped driver plate having a contact portion. In the variable resistor in which the plate-shaped projection is attached to the board by punching in the state of being connected to the arm and folded back at the connection, the plate-shaped projection is attached to the board. Is the gold attached along the bottom of the board
One end of the metal terminal was bent upward along the side surface of the board
A stopper part consisting of a standing piece is provided so that both
The side portion is bent in the plate thickness direction, the connecting portion of the slider is formed into a bifurcated shape, and the flange portion is integrally formed with a stopper piece protruding radially between the connecting portions. The variable resistor is characterized in that the side portion of the slider comes into contact with both side portions of the stopper portion of the substrate to regulate the rotation angle of the slider.
り曲げられていることを特徴とする請求項１に記載の可
変抵抗器。2. The variable resistor according to claim 1, wherein the stopper piece of the slider is bent obliquely downward.
れたハトメ部が形成され、摺動子の皿状突部には穴が形
成され、ハトメ部を上記穴に嵌合してかしめることによ
り、摺動子は金属端子に回転可能に取り付けられている
ことを特徴とする請求項１または２に記載の可変抵抗
器。3. The metal terminal is provided with an eyelet portion arranged in a central hole of the substrate, a hole is formed in the dish-shaped protrusion of the slider, and the eyelet portion is fitted into the hole. The variable resistor according to claim 1 or 2 , wherein the slider is rotatably attached to the metal terminal by caulking.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16624099A JP3440884B2 (en) | 1999-06-14 | 1999-06-14 | Variable resistor |
| KR1020000032400A KR100349781B1 (en) | 1999-06-14 | 2000-06-13 | Variable Resistor |
| CN00109179A CN1133181C (en) | 1999-06-14 | 2000-06-14 | Variable resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16624099A JP3440884B2 (en) | 1999-06-14 | 1999-06-14 | Variable resistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000353607A JP2000353607A (en) | 2000-12-19 |
| JP3440884B2 true JP3440884B2 (en) | 2003-08-25 |
Family
ID=15827718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16624099A Expired - Lifetime JP3440884B2 (en) | 1999-06-14 | 1999-06-14 | Variable resistor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3440884B2 (en) |
| KR (1) | KR100349781B1 (en) |
| CN (1) | CN1133181C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100546311B1 (en) * | 2003-01-20 | 2006-01-26 | 삼성전자주식회사 | Variable resistor limited in varying its resistance and optical pick-up using the same |
| JP4400869B2 (en) * | 2004-05-20 | 2010-01-20 | ローム株式会社 | Chip-type variable electronic component and chip-type variable resistor |
| JP4149412B2 (en) | 2004-05-20 | 2008-09-10 | ローム株式会社 | Chip-type variable electronic component and chip-type variable resistor |
| CN112038024A (en) * | 2020-08-26 | 2020-12-04 | 周晓燕 | Double-resistor-core resistor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0445205Y2 (en) * | 1986-01-29 | 1992-10-23 | ||
| JPS63112307U (en) * | 1987-01-16 | 1988-07-19 |
-
1999
- 1999-06-14 JP JP16624099A patent/JP3440884B2/en not_active Expired - Lifetime
-
2000
- 2000-06-13 KR KR1020000032400A patent/KR100349781B1/en active IP Right Grant
- 2000-06-14 CN CN00109179A patent/CN1133181C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1277443A (en) | 2000-12-20 |
| CN1133181C (en) | 2003-12-31 |
| KR20010007351A (en) | 2001-01-26 |
| JP2000353607A (en) | 2000-12-19 |
| KR100349781B1 (en) | 2002-08-24 |
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