JPH08286094A - Neutral position restoring type electronic component - Google Patents
Neutral position restoring type electronic componentInfo
- Publication number
- JPH08286094A JPH08286094A JP7089300A JP8930095A JPH08286094A JP H08286094 A JPH08286094 A JP H08286094A JP 7089300 A JP7089300 A JP 7089300A JP 8930095 A JP8930095 A JP 8930095A JP H08286094 A JPH08286094 A JP H08286094A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- rotating body
- holder
- neutral position
- outer peripheral
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は主にビデオカメラのズー
ム速度調整用等に使用される中立位置復帰型電子部品に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a neutral position return type electronic component mainly used for adjusting a zoom speed of a video camera.
【０００２】[0002]
【従来の技術】ビデオカメラのズーム速度調整は、「Ｔ
ＥＬＥ（望遠）」側および「ＷＩＤＥ（広角）」側の両
方向にズーミングさせて所定の位置で瞬時に停止させる
必要があるため、その操作部に中立位置復帰型電子部品
の１つである中立位置復帰型可変抵抗器が広く用いられ
ている。2. Description of the Related Art The zoom speed adjustment of a video camera is called "T".
Since it is necessary to zoom in both the "ELE (telephoto)" side and the "WIDE (wide-angle)" side and stop at a predetermined position instantly, the neutral position, which is one of the neutral position return type electronic components, is provided in the operation part. Resettable variable resistors are widely used.
【０００３】この従来の中立位置復帰型可変抵抗器を図
７〜図１０により説明する。同図において、１は成形樹
脂等で作られたホルダーで、中央部に円形貫通孔２を有
すると共に、その側部に取付用の小孔３が設けられてい
る。This conventional neutral position return type variable resistor will be described with reference to FIGS. In the figure, reference numeral 1 is a holder made of a molding resin or the like, which has a circular through hole 2 in the center and a small hole 3 for attachment on the side thereof.
【０００４】４は回転型可変抵抗器で、その回転軸５が
上記ホルダー１の円形貫通孔２と同心になるようにホル
ダー１端部の脚部７によって保持されて側方に複数個の
端子６が突出しており、上記回転軸５を回転することに
よって刷子４ａが抵抗体４ｂ上を摺接し、端子６から導
出される出力（抵抗値）を可変するものである。Reference numeral 4 denotes a rotary variable resistor, which is held by a leg portion 7 at the end of the holder 1 so that its rotary shaft 5 is concentric with the circular through hole 2 of the holder 1 and has a plurality of terminals laterally. 6 is projected, and the brush 4a is brought into sliding contact with the resistor 4b by rotating the rotary shaft 5, and the output (resistance value) derived from the terminal 6 is varied.
【０００５】また、８は回転操作軸で、上記ホルダー１
の円形貫通孔２に回転可能に嵌合保持される円形軸部９
と、その端部から半径方向に延ばされた操作レバー部１
０から成り、円形軸部９の他端部９ａが回転形可変抵抗
器４の回転軸５と連結され、円形軸部９の中央孔９ｂに
通されたビス１１が両者を固着している。Reference numeral 8 denotes a rotary operation shaft, which is the holder 1
Circular shaft portion 9 rotatably fitted and held in the circular through hole 2 of
And the operating lever portion 1 extended from its end in the radial direction
0, the other end 9a of the circular shaft portion 9 is connected to the rotary shaft 5 of the rotary variable resistor 4, and a screw 11 passing through a central hole 9b of the circular shaft portion 9 fixes the both.
【０００６】そして、回転操作軸８の操作レバー部１０
根元の２ヶ所のストッパー用段部１２ａ，１２ｂは、ホ
ルダー１端部の突起１３と係合して回転操作軸８の回転
角度範囲を規制している。The operating lever portion 10 of the rotary operating shaft 8
The two stopper steps 12a and 12b at the base are engaged with the projections 13 at the end of the holder 1 to regulate the rotation angle range of the rotary operation shaft 8.
【０００７】更に、１４は回転操作軸８すなわち操作レ
バー部１０を中立位置に保つためのねじりコイルばね
で、そのコイル部１５が上記回転操作軸８の円形軸部９
の外周に配されると共に、その両端のフック部１６ａ，
１６ｂが回転操作軸８のストッパー用段部１２ａ，１２
ｂよりも広い角度位置に設けられた２ヶ所の段部１７
ａ，１７ｂおよびその外側同角度の位置に並べてホルダ
ー１の端部に設けられた２ヶ所の突起１８ａ，１８ｂに
各々一定の付勢力をもって当接している。Further, 14 is a torsion coil spring for keeping the rotary operation shaft 8, that is, the operation lever portion 10 in a neutral position, and its coil portion 15 is a circular shaft portion 9 of the rotary operation shaft 8.
And the hook portions 16a at both ends of the hook portion 16a,
16b denotes stopper step portions 12a, 12 of the rotary operation shaft 8.
Two step portions 17 provided at an angle position wider than b
a, 17b and two protrusions 18a, 18b provided at the end of the holder 1 side by side at the same angle on the outside and abutted with a constant biasing force.
【０００８】このように構成された従来の中立位置復帰
型可変抵抗器の動作について説明すると、まず図１０に
矢印Ｃで示すように、操作レバー１０の先端部側面を押
すと、回転操作軸８は円形軸部９を中心として回転し、
操作レバー１０根元の段部１７ａがねじりコイルばね１
４のフック部１６ａを矢印の方向に押してホルダー１の
突部１８ａから離すと共に、操作レバー１０根元の他方
の段部１７ｂがねじりコイルばね１４の他方のフック部
１６ｂから離れるが、ホルダー１の他方の突部１８ｂが
このフック部１６ｂに当接したままであるため、ねじり
コイルばね１４の両方のフック部１６ａ，１６ｂの間で
コイル部１５がその弾性力に抗してたわめられる。The operation of the conventional neutral position return type variable resistor thus constructed will be described. First, as shown by an arrow C in FIG. Rotates around the circular shaft 9,
The step portion 17a at the base of the operation lever 10 is a torsion coil spring 1.
The hook portion 16a of No. 4 is pushed in the direction of the arrow to separate it from the protrusion 18a of the holder 1, and the other step portion 17b at the base of the operating lever 10 separates from the other hook portion 16b of the torsion coil spring 14, but the other of the holder 1 Since the protruding portion 18b of the coil remains in contact with the hook portion 16b, the coil portion 15 is bent between the hook portions 16a and 16b of the torsion coil spring 14 against its elastic force.
【０００９】この時、回転操作軸８の円形軸部９に連結
された回転形可変抵抗器４の回転軸５が回転させられ
て、その接続用端子６に導出される抵抗値が変わる。At this time, the rotary shaft 5 of the rotary variable resistor 4 connected to the circular shaft portion 9 of the rotary operation shaft 8 is rotated, and the resistance value led to the connecting terminal 6 is changed.
【００１０】この後、操作レバー１０の先端部側面に加
えていた押し力を除くと、回転操作軸８には、操作レバ
ー１０根元の段部１７ａを介してねじりコイルばね１４
の弾性力が加わり、元の中立位置（図８の状態）まで押
し戻される。After that, when the pushing force applied to the side surface of the tip portion of the operating lever 10 is removed, the torsion coil spring 14 is attached to the rotary operating shaft 8 via the step portion 17a at the base of the operating lever 10.
The elastic force is applied to push back to the original neutral position (state of FIG. 8).
【００１１】[0011]
【発明が解決しようとする課題】近年、ビデオカメラの
高精度化が進み、各部品の小形高精度化が要求されると
共に、集音マイクも高性能化することによって、撮影時
にズーム調整の操作音を録音してしまい、再生時の雑音
になるという課題が生じている。In recent years, the precision of video cameras has increased, and the miniaturization and precision of each component have been required. In addition, the performance of the sound collecting microphone has also improved, and the zoom adjustment operation has been performed during shooting. The problem is that the sound is recorded and becomes noise during playback.
【００１２】そして上記した中立位置復帰型電子部品の
１つである中立位置復帰型可変抵抗器においては、厚さ
が大きいことと、操作レバー１０に押し力を加えて回転
操作軸８を回転角度範囲の終端まで回し切る時のストッ
パー用段部１２ａ，１２ｂと突起１３との当接音、およ
び操作レバー１０に加えていた押し力を除いてねじりコ
イルばね１４の弾性力によって回転操作軸８を中立位置
まで復帰させる際のコイルばねフック部１６ａ，１６ｂ
と段部１７ａ，１７ｂ（および突部１８ａ，１８ｂ）と
の当接音が問題となっていた。In the neutral position return type variable resistor, which is one of the neutral position return type electronic parts described above, the thickness is large, and a pushing force is applied to the operation lever 10 to rotate the rotary operation shaft 8 at a rotation angle. The rotating operation shaft 8 is moved by the elastic force of the torsion coil spring 14 except for the contact sound between the stopper step portions 12a and 12b and the projection 13 when the end portion of the range is rotated and the pushing force applied to the operation lever 10. Coil spring hook portions 16a and 16b when returning to the neutral position
The contact noise between the step portions 17a and 17b (and the protrusions 18a and 18b) has been a problem.
【００１３】[0013]
【課題を解決するための手段】上記課題を解決するため
に本発明は、中立位置復帰型電子部品において、ホルダ
ーを平板化し、回転操作軸と可変抵抗器部の回転軸を一
体化した回転体にして薄形化すると共に、回転体の回転
操作時にその外周を弾性材料からなる摩擦体に接触摺動
させて急激な回転を制御し、更に回転操作角の終端およ
び中立位置復帰時の当接部間に摩擦体と一体に形成した
緩衝部を介在させるものである。In order to solve the above problems, the present invention relates to a neutral position return type electronic component, in which a holder is flattened, and a rotary operation shaft and a rotary shaft of a variable resistor unit are integrated. In addition to making it thinner, the outer periphery of the rotating body is brought into contact with the friction body made of an elastic material to slide during rotation operation to control abrupt rotation, and contact at the end of the rotation operation angle and when returning to the neutral position. A buffer portion integrally formed with the friction body is interposed between the portions.
【００１４】[0014]
【作用】したがって、本発明によれば、中立位置復帰型
電子部品の厚さを大巾に小さくできると共に、操作レバ
ーを押して操作する際に回転体が急速に回転しなくな
り、更に、回転操作角最終回し切り時の回転体のストッ
パー部とホルダーの突部との当接部、および回転体の中
立位置復帰時のねじりコイルばねのフック部とホルダー
の突部との当接部間に弾性材料製の緩衝部が介在するこ
とになるので、何れの場合も当接音を小さくすることが
できるものである。Therefore, according to the present invention, the thickness of the neutral position return type electronic component can be greatly reduced, the rotating body does not rapidly rotate when the operation lever is pushed, and the rotation operation angle is further reduced. An elastic material between the abutting part between the stopper part of the rotating body and the protruding part of the holder at the final turning, and the abutting part between the hook part of the torsion coil spring and the protruding part of the holder when returning the neutral position of the rotating body. Since the manufactured cushioning portion is interposed, the contact noise can be reduced in any case.
【００１５】[0015]
【実施例】以下、本発明の中立位置復帰型電子部品の一
実施例である中立位置復帰型可変抵抗器を図１〜図５に
より説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A neutral position return type variable resistor which is one embodiment of the neutral position return type electronic component of the present invention will be described below with reference to FIGS.
【００１６】同図において、２１は金属板製のホルダー
で、その中心部に円柱状支軸２２を有すると共に、外周
部に２ヶ所の突部２３ａ，２３ｂを有している。In the figure, reference numeral 21 is a holder made of a metal plate, which has a cylindrical support shaft 22 at the center thereof and two projections 23a and 23b at the outer peripheral portion.
【００１７】２４は絶縁材料製の接点基板で、その中心
孔２５を上記支軸２２が貫通するようにホルダー２１に
重ねて配され、その上面には中心孔に対し同心円状に抵
抗素子２６が設けられている。Reference numeral 24 denotes a contact substrate made of an insulating material, which is arranged so as to overlap the center hole 25 of the holder 21 so that the support shaft 22 penetrates through, and a resistance element 26 is concentrically formed on the upper surface of the holder 21. It is provided.
【００１８】２７は成形樹脂製の回転体で、その円筒部
２８の中央孔に上記支軸２２を通し、その先端をかしめ
ることによりホルダー２１に対して回転可能に保持され
ている。Reference numeral 27 denotes a rotating body made of molded resin, which is rotatably held by the holder 21 by passing the support shaft 22 through the center hole of the cylindrical portion 28 and caulking the tip thereof.
【００１９】更に、上記円筒部２８下部の円板部２９の
外周には、ストッパー突部３０および操作レバー３１が
設けられ、ストッパー突部３０を中心として、その両側
の一定角度を除く範囲に外周壁３２が設けられている。Further, a stopper protrusion 30 and an operating lever 31 are provided on the outer periphery of the disc portion 29 below the cylindrical portion 28, and the outer periphery is centered around the stopper protrusion 30 except for a certain angle on both sides thereof. A wall 32 is provided.
【００２０】また、この外周壁３２が欠除している部分
の角度は、ホルダー２１の２ヶ所の突部２３ａ，２３ｂ
間の角度とほぼ等しく設定されており、この外周壁３２
がある部分と無い部分の境は段部３３ａ，３３ｂとなっ
ている。Further, the angle of the part where the outer peripheral wall 32 is cut off is such that two protrusions 23a and 23b of the holder 21 are provided.
The angle between the outer peripheral wall 32 and the outer wall 32
The boundary between the portion with and without the portion is stepped portions 33a and 33b.
【００２１】また、回転体２７の円板部２９の下面に
は、可動弾性接点３４が取付られ、上記接点基板２４上
の抵抗素子２６に所定の圧力で接触している。A movable elastic contact 34 is attached to the lower surface of the disk portion 29 of the rotating body 27 and is in contact with the resistance element 26 on the contact substrate 24 with a predetermined pressure.
【００２２】３５はばね性を有する線材からなるねじり
コイルばねで、そのコイル部３５ｃが回転体２７の円筒
部２８と外周壁３２の間に配されると共に、両端のフッ
ク部３５ａ，３５ｂはホルダー２１の２ヶ所の突部２３
ａ，２３ｂ間および回転体２７の外周壁段部３３ａ，３
３ｂ間の両方に各々一定の外向きの圧力で弾接してお
り、このねじりコイルばね３５の弾接力によって、回転
体２７は通常状態においてその回転操作範囲の中点位置
に保たれている。Reference numeral 35 is a torsion coil spring made of a wire material having a spring property. The coil portion 35c is arranged between the cylindrical portion 28 of the rotating body 27 and the outer peripheral wall 32, and the hook portions 35a and 35b at both ends are holders. 21 two protrusions 23
between a and 23b and outer peripheral wall step portions 33a and 3 of the rotating body 27.
They are elastically contacted with each other at a constant outward pressure between both 3b, and the elastic contact force of the torsion coil spring 35 keeps the rotating body 27 at the center position of its rotating operation range in the normal state.
【００２３】尚、回転体２７の回転操作範囲は、ストッ
パー突部３０がその両側に位置するホルダー２１の２ヶ
所の突部２３ａ，２３ｂに当接するまでの角度である。The rotary operation range of the rotating body 27 is an angle until the stopper projection 30 comes into contact with the two projections 23a and 23b of the holder 21 located on both sides thereof.
【００２４】３６は両端に脚部を備えたゴム系弾性材料
等からなる棒状の摩擦体で、その両端の脚部の孔３６
ａ，３６ｂに上記ホルダー２１の２ヶ所の突部２３ａ，
２３ｂの抜け止め用爪３７ａ，３７ｂの付いた部分を圧
入することによってホルダー２１に固定されており、そ
の中間部３６ｃは、上記回転体２７の外周壁３２の欠除
部とほぼ等しい角度範囲に亘って、ホルダー２１の支軸
２２中心からの半径が外周壁３２の半径よりもやや小さ
い半径に設定されている。Reference numeral 36 denotes a rod-shaped friction body made of a rubber-based elastic material or the like having legs at both ends, and has holes 36 in the legs at both ends thereof.
a, 36b, the two protrusions 23a of the holder 21,
23b is fixed to the holder 21 by press-fitting the portions with the retaining claws 37a and 37b, and the intermediate portion 36c thereof has an angle range substantially equal to that of the cutout portion of the outer peripheral wall 32 of the rotating body 27. The radius of the holder 21 from the center of the support shaft 22 is set to be slightly smaller than the radius of the outer peripheral wall 32.
【００２５】また、ホルダー２１の２ヶ所の突部２３
ａ，２３ｂにはめ込まれて、これを覆った弾性材料製の
摩擦体３６の両端の円筒状の脚部は、通常状態におい
て、ねじりコイルばね３５両端のフック部３５ａ，３５
ｂが弾接することにより少し押し縮められている。Further, two protrusions 23 of the holder 21 are provided.
The cylindrical legs at both ends of the friction body 36 made of an elastic material fitted into the a and 23b and covering the hooks 35a and 35 at both ends of the torsion coil spring 35 in the normal state.
It is slightly compressed due to the elastic contact of b.
【００２６】そして、上記回転体２７の外周壁段部３３
ａと３３ｂの位置は、この摩擦体３６両端の円筒状の脚
部がねじりコイルばね３５両端のフック部３５ａ，３５
ｂに少し押し縮められた状態において、フック部３５
ａ，３５ｂに当接するように設定されている。Then, the outer peripheral wall step portion 33 of the rotating body 27.
The positions of a and 33b are such that the cylindrical legs at the ends of the friction body 36 are twisted by the torsion coil springs 35 at the ends of the hooks 35a, 35b.
In the state in which it is slightly compressed by b, the hook portion 35
It is set so as to come into contact with a and 35b.
【００２７】次に、上記実施例の中立位置復帰型可変抵
抗器の動作について、動作状態の断面図である図５によ
り説明する。Next, the operation of the neutral position return type variable resistor of the above embodiment will be described with reference to FIG. 5, which is a sectional view of the operating state.
【００２８】まず、図５に矢印Ｅで示すように、操作レ
バー３１の先端部側面を押すと、回転体２７はホルダー
２１の支軸２２を中心に回転し、その外周壁３２の段部
３３ａがねじりコイルばね３５のフック部３５ａを矢印
の方向に押して、摩擦体３６の円筒状の脚部すなわちホ
ルダー２１の突部２３ａから離すと共に、外周壁３２の
他方の段部３３ｂがねじりコイルばね３５の他方のフッ
ク部３５ｂから離れるが、ホルダー２１の突部２３ｂが
このフック部３３ｂに当接したままであるため、ねじり
コイルばね３５ｂの両方のフック部３５ａ，３５ｂ間で
コイル部３５ｃがその弾性力に抗してたわめられる。First, as shown by an arrow E in FIG. 5, when the tip end side surface of the operating lever 31 is pushed, the rotating body 27 rotates about the support shaft 22 of the holder 21, and the step portion 33a of the outer peripheral wall 32 thereof. Pushes the hook portion 35a of the torsion coil spring 35 in the direction of the arrow to separate it from the cylindrical leg portion of the friction body 36, that is, the protrusion 23a of the holder 21, and the other step 33b of the outer peripheral wall 32 causes the torsion coil spring 35 to rotate. However, since the protrusion 23b of the holder 21 remains in contact with the hook portion 33b, the coil portion 35c is elastic between the hook portions 35a and 35b of the torsion coil spring 35b. It is protested against the power.
【００２９】この回転体２７の回転に伴って、段部３３
ａに続く外周壁３２の外側が摩擦体３６の中間部３６ｃ
と接触摺動することによる摩擦抵抗が緩衝作用をするの
で、回転体２７は余り急速には回転しない。With the rotation of the rotating body 27, the step portion 33 is formed.
The outer side of the outer peripheral wall 32 following a is the intermediate portion 36c of the friction body 36.
Since the frictional resistance due to the sliding contact with the cushioning effect acts as a buffer, the rotating body 27 does not rotate very rapidly.
【００３０】そして、この回転に伴って、回転体２７の
円板部２９下面の可動弾性接点３４が接点基板２４の抵
抗素子２６上を接触摺動させられ、その接続用端子２６
ａに導出される抵抗値が変わる。Along with this rotation, the movable elastic contact 34 on the lower surface of the disk portion 29 of the rotating body 27 is brought into contact slide on the resistance element 26 of the contact substrate 24, and the connection terminal 26 thereof is provided.
The resistance value derived to a changes.
【００３１】従って、回転体２７の回転角度すなわち操
作レバー３１への押圧操作量に応じて、回転形可変抵抗
器の接続用端子２６ａに導出される抵抗値が一定方向に
変化していく。Therefore, the resistance value derived to the connection terminal 26a of the rotary variable resistor changes in a certain direction according to the rotation angle of the rotating body 27, that is, the amount of pressing operation on the operation lever 31.
【００３２】そして、回転体２７の回転角度範囲の終端
においては、円板部２９外周のストッパー突部３０がホ
ルダー２１の突部２３ｂに押し当たるが、突部２３ｂに
は摩擦体３６の円筒状の脚部が被せてあるので、この円
筒状の脚部が緩衝部として作用するために当接時の音は
低い。At the end of the rotation angle range of the rotating body 27, the stopper protrusion 30 on the outer circumference of the disk portion 29 abuts against the protrusion 23b of the holder 21, and the protrusion 23b has a cylindrical shape of the friction body 36. Since the legs are covered, this cylindrical leg acts as a buffer, so the sound at the time of contact is low.
【００３３】この後、操作レバー３１に加えていた押し
力を除くと、回転体２７には、外周壁３２の段部３３ａ
を介してねじりコイルばね３５の弾性力が加わり、元の
中立位置（図４の状態）まで押し戻される。After that, when the pushing force applied to the operation lever 31 is removed, the step 27a of the outer peripheral wall 32 of the rotating body 27 is removed.
The elastic force of the torsion coil spring 35 is applied via and is pushed back to the original neutral position (state of FIG. 4).
【００３４】そして、この時も回転体２７の回転は、そ
の外周壁３２と摩擦体３６の中間部３６ｃとの摩擦又
は、回転体２７のストッパー突部３０と摩擦体３６の中
間部３６ｃとの摩擦による緩衝作用のため余り急速には
ならず、また中立位置（図４の状態）まで戻った時に、
まず、ねじりコイルばね３５のフック部３５ａが摩擦体
３６の円筒状の脚部３６ａを介してホルダー２１の突部
２３ａに当接し、摩擦体３６の円筒状の脚部３６ａが少
し押し縮められてから他方のフック部３５ｂが回転体２
７の段部３３ｂに当接するので、何れの当接音も低い。Also at this time, the rotation of the rotating body 27 is caused by friction between the outer peripheral wall 32 and the intermediate portion 36c of the friction body 36, or between the stopper protrusion 30 of the rotating body 27 and the intermediate portion 36c of the friction body 36. It does not become so rapid due to the buffering effect due to friction,
First, the hook portion 35a of the torsion coil spring 35 comes into contact with the protrusion 23a of the holder 21 through the cylindrical leg portion 36a of the friction body 36, and the cylindrical leg portion 36a of the friction body 36 is slightly compressed. From the other hook portion 35b to the rotating body 2
Since it contacts the stepped portion 33b of No. 7, any contact noise is low.
【００３５】更に、中立位置復帰後（図４の状態）にお
いて、摩擦体３６の中間部３６ｃは、回転体２７の外周
壁３２とは接触せず、その段部３３ａ，３３ｂ間にはま
り込んでいるので、回転体２７の中立位置はより安定し
たものとなっている。Further, after returning to the neutral position (state of FIG. 4), the intermediate portion 36c of the friction body 36 does not contact the outer peripheral wall 32 of the rotating body 27, but is fitted between the step portions 33a and 33b. Therefore, the neutral position of the rotating body 27 is more stable.
【００３６】また、同様に操作レバー３１の先端部側面
を引いて回転体２７を回転させる場合にも、回転形可変
抵抗器の接続用端子２６ａに導出される抵抗値を、上記
の操作レバー３１の先端部側面を押す場合とは反対の方
向に変化させることができるものである。Similarly, when the side surface of the distal end portion of the operating lever 31 is pulled to rotate the rotating body 27, the resistance value derived to the connecting terminal 26a of the rotary variable resistor is set to the above-mentioned operating lever 31. It is possible to change the direction in the opposite direction to the case of pushing the side surface of the tip end part of.
【００３７】また、前記の緩衝作用は図６に示す如く、
回転体２７のストッパー突部３０の平面部と摩擦体３６
の中間部３６ｃとを接触摺動させることでも同様の効果
が得られ、また、外周壁３２と摩擦体３６間及び、スト
ッパー突部３０と摩擦体３６間を共に接触摺動させても
良いことは言うまでもない。Further, the above-mentioned cushioning action is as shown in FIG.
The flat portion of the stopper protrusion 30 of the rotating body 27 and the friction body 36
The same effect can be obtained by bringing the intermediate portion 36c of the above into sliding contact, and the sliding contact between the outer peripheral wall 32 and the friction body 36 and between the stopper projection 30 and the friction body 36 may be performed. Needless to say.
【００３８】更に、ストッパー突部３０の平面部に凸部
４０を設けることにより、摺動摩擦力を調整することが
可能であり、この凸部４０を摩擦体３６の中間部３６ｃ
に設けても同様の効果が得られる。Further, by providing the convex portion 40 on the flat surface portion of the stopper projection 30, it is possible to adjust the sliding frictional force, and the convex portion 40 is used as the intermediate portion 36c of the friction body 36.
The same effect can be obtained even if it is provided.
【００３９】なお、以上の実施例は、中立位置復帰型可
変抵抗器の場合について説明したが、本発明はこれに限
定されるものではなく、これは回転形可変抵抗器の部分
を回転切換式のスイッチとした中立位置復帰型スイッチ
でもよいことは勿論である。The above embodiment has been described with respect to the case of the neutral position return type variable resistor, but the present invention is not limited to this, and the rotary variable resistor portion is a rotation switching type. Needless to say, the neutral position return type switch may be used as the above switch.
【００４０】[0040]
【発明の効果】以上のように本発明の中点位置復帰型電
子部品は、上記実施例より明らかなように （１）電子部品の大きさ、特に厚さ寸法を大巾に小さく
することができる。As is apparent from the above-described embodiment, the midpoint position return type electronic component of the present invention has the following advantages. (1) The size of the electronic component, especially the thickness, can be greatly reduced. it can.
【００４１】（２）回転体外周部と弾性材料製の摩擦体
が接触摺動することにより、回転体が急速に回転してそ
の回転角度終端において急激に当接することがなくな
る。(2) Since the outer peripheral portion of the rotating body and the friction body made of the elastic material make sliding contact with each other, the rotating body does not rotate rapidly and abruptly abut at the end of the rotation angle.
【００４２】また、この摩擦力による緩衝作用は、接触
面の大きさや接触圧力により任意に調節することができ
る。Further, the cushioning action by the frictional force can be arbitrarily adjusted by the size of the contact surface and the contact pressure.
【００４３】（３）回転体の回転角度終端における当接
部において、摩擦体と一体に形成した円筒状の脚部が緩
衝部として作用することにより、その当接音を低減する
ことができるものである。(3) At the contact portion at the end of the rotation angle of the rotating body, the contact sound can be reduced by the cylindrical leg portion integrally formed with the friction body acting as a buffer portion. Is.
【図１】本発明の中立位置復帰型電子部品の一実施例で
ある中立位置復帰型可変抵抗器の側面断面図FIG. 1 is a side sectional view of a neutral position return type variable resistor which is an embodiment of a neutral position return type electronic component of the present invention.
【図２】同外観斜視図FIG. 2 is a perspective view of the same appearance.
【図３】同分解斜視図FIG. 3 is an exploded perspective view of the same.
【図４】同図１のＤ−Ｄ′線における平面断面図FIG. 4 is a plan sectional view taken along line DD ′ of FIG.
【図５】同図４の状態から操作レバーを押して操作した
状態の平面断面図FIG. 5 is a plan cross-sectional view of a state in which the operation lever is pushed to operate from the state of FIG.
【図６】本発明の第二の実施例である中立位置復帰型可
変抵抗器の側面断面図FIG. 6 is a side sectional view of a neutral position return type variable resistor according to a second embodiment of the present invention.
【図７】従来の中立位置復帰型可変抵抗器の正面断面図FIG. 7 is a front sectional view of a conventional neutral position return type variable resistor.
【図８】同図７のＡ−Ａ′線における側面断面図8 is a side sectional view taken along the line AA ′ in FIG.
【図９】同図８のＢ−Ｂ′線における回転操作軸部分の
要部断面図9 is a cross-sectional view of the main part of the rotary operation shaft portion taken along the line BB ′ of FIG.
【図１０】同図８の状態から操作レバーを押して操作し
た状態の側面断面図FIG. 10 is a side sectional view showing a state in which the operation lever is pushed and operated from the state of FIG.
２１ ホルダー ２２ 円柱状支軸 ２３ａ，２３ｂ 突部 ２４ 接点基板 ２５ 中心孔 ２６ 抵抗素子（固定接点） ２７ 回転体 ３０ ストッパー突部 ３１ 操作レバー ３２ 外周壁 ３３ａ，３３ｂ 段部 ３４ 可動弾性接点 ３５ ねじりコイルばね ３５ａ，３５ｂ フック部 ３６ 摩擦体 21 Holder 22 Cylindrical Support 23a, 23b Projection 24 Contact Board 25 Center Hole 26 Resistance Element (Fixed Contact) 27 Rotating Body 30 Stopper Projection 31 Control Lever 32 Outer Wall 33a, 33b Step 34 Movable Elastic Contact 35 Torsion Coil Spring 35a, 35b Hook part 36 Friction body
Claims (3)
共に周縁の２ヶ所に突部を設けたホルダーと、上記支軸
が中心孔を挿通するように上記ホルダー上に配置され、
上面に中心孔と同心円状の固定接点ならびに接続用端子
を設けた接点基板と、この接点基板上に上記支軸を介し
て回転可能に係合され、上記ホルダーの２つの突部間に
はまり込んで回転角度を規制するための舌片状のストッ
パー突部、ならびにこのストッパー突部近傍を除く外周
部に立壁状の外周壁、ならびにストッパー突部と反対方
向に突出する操作レバー部を一体形成すると共に、下面
に上記接点基板に設けた固定接点ならびに接続用端子と
摺接する可動弾性接点を結合した回転体と、上記ホルダ
ーの２つの突部間にはまり込んで弾接するフック部を両
端に設けて上記回転体の内部に配置されたねじりコイル
ばねと、上記ホルダーの２つの突部に両端に設けた脚部
がそれぞれはめ込まれ、上記回転体が回転した際に少な
くとも回転体のストッパー突部あるいは外周壁のいずれ
かが摺接するように上記脚部を除く部分が棒状に形成さ
れた弾性材料製の摩擦体からなる中立位置復帰型電子部
品。1. A holder having a cylindrical support shaft provided at the center of a flat plate and projections provided at two locations on the periphery, and the support shaft disposed on the holder so as to pass through the center hole,
A contact board having a fixed contact and a connection terminal concentric with the central hole on the upper surface, and rotatably engaged with the contact board via the support shaft, and fitted between two protrusions of the holder. The tongue-shaped stopper protrusion for restricting the rotation angle with the, the outer peripheral portion excluding the vicinity of the stopper protrusion and the standing wall-shaped outer peripheral wall, and the operation lever portion protruding in the opposite direction to the stopper protrusion are integrally formed. At the same time, the fixed contact provided on the contact substrate and the movable elastic contact slidably in contact with the connection terminal on the lower surface are combined with the rotating body, and the hook portions which are fitted between the two protrusions of the holder and elastically contact are provided at both ends. The torsion coil spring arranged inside the rotating body and the leg portions provided at both ends are fitted into the two protrusions of the holder, respectively, and at least when the rotating body rotates, the spring of the rotating body is rotated. Wrapper projections or neutral position return-type electronic component either portion excluding the leg portion so as to sliding contact consists of friction of the elastic material formed into a rod shape of the outer peripheral wall.
度を、ねじりコイルばねの両端のフック部がホルダーの
２つの突部にそれぞれはめ込まれた摩擦体の脚部に弾接
する角度より僅かに大きくした請求項１記載の中立位置
復帰型電子部品。2. The notch angle for notching a part of the outer peripheral wall of the rotating body is the angle at which the hook portions at both ends of the torsion coil spring make elastic contact with the leg portions of the friction body fitted in the two projecting portions of the holder, respectively. The neutral position return type electronic component according to claim 1, which is slightly larger.
くはこの平面部が摺接する摩擦体の摺接面の少なくとも
いずれかに部分的に突出する凸部を設けた請求項１、請
求項２いずれか記載の中立位置復帰型電子部品。3. The projection according to claim 1, wherein at least one of the flat surface of the stopper projection of the rotating body and the sliding contact surface of the friction body with which the flat surface is in sliding contact is provided with a protruding portion. Neutral position return type electronic parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7089300A JPH08286094A (en) | 1995-04-14 | 1995-04-14 | Neutral position restoring type electronic component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7089300A JPH08286094A (en) | 1995-04-14 | 1995-04-14 | Neutral position restoring type electronic component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08286094A true JPH08286094A (en) | 1996-11-01 |
Family
ID=13966827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7089300A Pending JPH08286094A (en) | 1995-04-14 | 1995-04-14 | Neutral position restoring type electronic component |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08286094A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003057518A (en) * | 2001-08-21 | 2003-02-26 | Canon Inc | Operating device, photographic lens system and camera system |
| JP2005521097A (en) * | 2002-03-20 | 2005-07-14 | ハネウェル・インターナショナル・インコーポレーテッド | High-speed optical element switching mechanism |
| JP2012058390A (en) * | 2010-09-07 | 2012-03-22 | Canon Inc | Electronic apparatus |
| JP2012252218A (en) * | 2011-06-03 | 2012-12-20 | Canon Inc | Electronic apparatus |
| JP2014035414A (en) * | 2012-08-08 | 2014-02-24 | Canon Inc | Electronic equipment |
-
1995
- 1995-04-14 JP JP7089300A patent/JPH08286094A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003057518A (en) * | 2001-08-21 | 2003-02-26 | Canon Inc | Operating device, photographic lens system and camera system |
| JP4700858B2 (en) * | 2001-08-21 | 2011-06-15 | キヤノン株式会社 | Operating device, photographing lens system, and camera system |
| JP2005521097A (en) * | 2002-03-20 | 2005-07-14 | ハネウェル・インターナショナル・インコーポレーテッド | High-speed optical element switching mechanism |
| JP2012058390A (en) * | 2010-09-07 | 2012-03-22 | Canon Inc | Electronic apparatus |
| JP2012252218A (en) * | 2011-06-03 | 2012-12-20 | Canon Inc | Electronic apparatus |
| JP2014035414A (en) * | 2012-08-08 | 2014-02-24 | Canon Inc | Electronic equipment |
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