JP2001033273A - Rotary encoder - Google Patents
Rotary encoderInfo
- Publication number
- JP2001033273A JP2001033273A JP11210713A JP21071399A JP2001033273A JP 2001033273 A JP2001033273 A JP 2001033273A JP 11210713 A JP11210713 A JP 11210713A JP 21071399 A JP21071399 A JP 21071399A JP 2001033273 A JP2001033273 A JP 2001033273A
- Authority
- JP
- Japan
- Prior art keywords
- housing
- shaft
- pressing element
- rotary encoder
- pressing
- 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
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、クリック感をもた
せながら一定量毎の回転を可能にして、手動のパルス発
生器としての利用に供するロータリエンコーダに関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary encoder which can be rotated by a predetermined amount while giving a click feeling to be used as a manual pulse generator.
【０００２】[0002]
【従来の技術】従来、このような分野の技術として、実
開平５−５０３１５号公報がある。この公報に記載され
たロータリエンコーダは、回転軸に固定した歯車状の刻
み部分と、筺体内に配置させたローラとの協働により、
クリック感を達成させている。クリック感をもったこの
ようなロータリエンコーダとしては、特開平５−３４１
７２号公報、実開平２−１１０８１７号公報などがあ
る。2. Description of the Related Art Conventionally, as a technique in such a field, there is Japanese Utility Model Laid-Open No. 5-50315. The rotary encoder described in this publication has a gear-shaped notch fixed to a rotating shaft and a roller arranged in a housing, which cooperates with the roller.
The click feeling is achieved. Japanese Patent Application Laid-Open No. 5-341 discloses such a rotary encoder having a click feeling.
No. 72, and Japanese Utility Model Laid-Open No. 2-110817.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前述し
た従来のロータリエンコーダには、次のような課題が存
在する。すなわち、これらロータリエンコーダは、一個
のローラをコイルバネで付勢させることにより、クリッ
ク感を発生させているが、バネによりローラを直接押す
ことで、ローラとバネとの間に摩擦抵抗が発生し、この
抵抗によって、ローラがスムーズに転がりにくくなる。
その結果、ギア部分とローラとの滑り抵抗が大きくな
り、ローラやギア部分の摩耗によってクリック寿命に影
響を与えるといった問題点があったHowever, the above-described conventional rotary encoder has the following problems. That is, these rotary encoders generate a click feeling by urging one roller with a coil spring, but by directly pressing the roller by the spring, frictional resistance is generated between the roller and the spring, This resistance makes it difficult for the roller to roll smoothly.
As a result, there was a problem that the sliding resistance between the gear portion and the roller increased, and the click life was affected by the wear of the roller and the gear portion.
【０００４】本発明は、上述の課題を解決するためにな
されたもので、特に、クリック寿命の向上を図るように
したロータリエンコーダを提供することを目的とする。[0004] The present invention has been made to solve the above-mentioned problem, and an object of the present invention is to provide a rotary encoder particularly designed to improve the click life.
【０００５】[0005]
【課題を解決するための手段】請求項１に係る本発明の
ロータリエンコーダは、ハウジング内に回転自在に装着
させたシャフトと、ハウジングの内部空間内に収容させ
ると共に、シャフトに固定させた回転部と、回転部の変
位を検出する検出部と、ハウジングの内部空間内に収容
させると共に、シャフトに取付けられて外周に複数の歯
部をもったギア部と、ハウジング側で径方向に延在する
押圧素子収容部と、押圧素子収容部内で直列に並べられ
た複数個の押圧素子と、押圧素子収容部内に収容させる
と共に、押圧素子をギア部に向けて付勢する弾性部材と
を備えたことを特徴とする。According to a first aspect of the present invention, there is provided a rotary encoder, comprising: a shaft rotatably mounted in a housing; and a rotating portion housed in an internal space of the housing and fixed to the shaft. A detecting unit for detecting displacement of the rotating unit, a gear unit which is housed in the internal space of the housing, is attached to the shaft and has a plurality of teeth on the outer periphery, and extends radially on the housing side. A pressing element housing, a plurality of pressing elements arranged in series in the pressing element housing, and an elastic member that is housed in the pressing element housing and biases the pressing element toward the gear portion. It is characterized by.
【０００６】ロータリエンコーダの耐久性を高める上
で、特に問題となるのが、長年の使用によりクリック感
が悪化してしまうことであり、このようなクリック感の
劣化がロータリエンコーダの信頼性の大幅な低下に直結
する。そこで、発明者らは、弾性部材の影響により、ギ
ア部と押圧素子とが転がり接触ではなく、滑り接触を起
こしていることを見出し、これに基づき、滑らかなクリ
ック感とクリック寿命の大幅な向上とを同時に満足する
べく、ハウジング側で押圧素子収容部を径方向に延在さ
せ、この押圧素子収容部内で複数個の押圧素子を直列に
並べるように構成させた。A particular problem in increasing the durability of the rotary encoder is that the click feeling deteriorates due to long-term use. Such deterioration of the click feeling greatly increases the reliability of the rotary encoder. Directly leads to a significant drop. Therefore, the inventors have found that, due to the influence of the elastic member, the gear portion and the pressing element are not in rolling contact but in sliding contact, and based on this, a smooth click feeling and a significant improvement in click life are realized. In order to simultaneously satisfy the above, the pressing element housing portion is extended in the radial direction on the housing side, and a plurality of pressing elements are arranged in series in the pressing element housing portion.
【０００７】請求項２に係る本発明のロータリエンコー
ダは、ハウジング内に回転自在に装着させたシャフト
と、ハウジングの内部空間内に収容させると共に、シャ
フトに固定させた回転部と、回転部の変位を検出する検
出部と、ハウジングの内部空間内に収容させると共に、
ハウジングに取付けられて内周に複数の歯部をもったギ
ア部と、シャフト側で径方向に延在する押圧素子収容部
と、押圧素子収容部内で直列に並べられた複数個の押圧
素子と、押圧素子収容部内に収容させると共に、押圧素
子をギア部に向けて付勢する弾性部材とを備えたことを
特徴とする。According to a second aspect of the present invention, there is provided a rotary encoder according to the present invention, wherein a shaft rotatably mounted in a housing, a rotating portion housed in an internal space of the housing and fixed to the shaft, and a displacement of the rotating portion. And a detection part for detecting in a housing internal space,
A gear portion attached to the housing and having a plurality of teeth on the inner periphery, a pressing element receiving portion extending in the radial direction on the shaft side, and a plurality of pressing elements arranged in series in the pressing element receiving portion. And a resilient member that is housed in the pressing element housing portion and urges the pressing element toward the gear portion.
【０００８】ロータリエンコーダの耐久性を高める上
で、特に問題となるのが、長年の使用によりクリック感
が悪化してしまうことであり、このようなクリック感の
劣化がロータリエンコーダの信頼性の大幅な低下に直結
する。そこで、発明者らは、弾性部材の影響により、ギ
ア部と押圧素子とが転がり接触ではなく、滑り接触を起
こしていることを見出し、これに基づき、滑らかなクリ
ック感とクリック寿命の大幅な向上とを同時に満足する
べく、シャフト側で押圧素子収容部を径方向に延在さ
せ、この押圧素子収容部内で複数個の押圧素子を直列に
並べるように構成させた。A particular problem in increasing the durability of the rotary encoder is that the click feeling deteriorates due to long-term use, and such deterioration of the click feeling greatly increases the reliability of the rotary encoder. Directly leads to a significant drop. Therefore, the inventors have found that, due to the influence of the elastic member, the gear portion and the pressing element are not in rolling contact but in sliding contact, and based on this, a smooth click feeling and a significant improvement in click life are realized. In order to satisfy both of the above conditions, the pressing element housing is extended in the radial direction on the shaft side, and a plurality of pressing elements are arranged in series in the pressing element housing.
【０００９】請求項３記載のロータリエンコーダにおい
て、複数の押圧素子のうちの少なくともギア部と接触す
る押圧素子を転動体にすると好ましい。このように構成
した場合、ギア部と接触している押圧素子の転がり性を
良好とし、滑らかなクリック感とクリック寿命の大幅な
向上が図られる。In the rotary encoder according to the third aspect, it is preferable that at least one of the plurality of pressing elements that contacts the gear portion is a rolling element. With such a configuration, the rolling performance of the pressing element in contact with the gear portion is improved, and a smooth click feeling and a long click life are greatly improved.
【００１０】請求項４記載のロータリエンコーダにおい
て、複数の押圧素子の全てを転動体にすると好ましい。
このような構成を採用した場合、押圧素子の転がり性が
格段に向上し、各押圧素子の摩耗を大幅に低減させ、ク
リック寿命が格段に向上することになる。[0010] In the rotary encoder according to the fourth aspect, it is preferable that all of the plurality of pressing elements be rolling elements.
When such a configuration is adopted, the rolling properties of the pressing elements are remarkably improved, the wear of each pressing element is significantly reduced, and the click life is remarkably improved.
【００１１】[0011]
【発明の実施の形態】以下、図面と共に本発明によるロ
ータリエンコーダの好適な実施形態について詳細に説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a rotary encoder according to the present invention will be described below in detail with reference to the drawings.
【００１２】図１及び図２に示すように、ロータリエン
コーダ１は、上蓋をなす回路基板２とボディ３とからな
るハウジング４を有している。このハウジング４には、
回転軸線をもつシャフト５が装着され、このシャフト５
の一端は、ハウジング４の内部空間Ｓ内に差込まれ、そ
の他端は外部に露出させてツマミの軸部を形成する。As shown in FIGS. 1 and 2, the rotary encoder 1 has a housing 4 including a circuit board 2 forming an upper lid and a body 3. In this housing 4,
A shaft 5 having a rotation axis is mounted.
Is inserted into the internal space S of the housing 4, and the other end is exposed to the outside to form a knob shaft.
【００１３】内部空間Ｓにおいて、シャフト５には、透
明な樹脂板で形成させた回転部６が圧入固定されてい
る。この回転部６において、回路基板２側に位置する表
側には、シャフト５から放射状に延びる複数のレンズ面
６ａが形成され、裏側には、傾斜した反射面をもったプ
リズム部６ｂが設けられている。また、回路基板２の裏
面には、プリズム部６ｂに向けて光を照射する発光素子
７と、この発光部７を挟むようにして配置させた受光素
子８，９とからなる検出部Ｐが設けられている。In the internal space S, a rotating portion 6 formed of a transparent resin plate is press-fitted and fixed to the shaft 5. In this rotating part 6, a plurality of lens surfaces 6a extending radially from the shaft 5 are formed on the front side located on the circuit board 2 side, and a prism part 6b having an inclined reflecting surface is provided on the back side. I have. Further, on the back surface of the circuit board 2, there is provided a detection section P including a light emitting element 7 for irradiating light toward the prism section 6b, and light receiving elements 8, 9 arranged so as to sandwich the light emitting section 7. I have.
【００１４】そこで、シャフト５によって回転部６を所
定方向に回転させると、発光素子７からの光は、プリズ
ム部６ｂで反射した後に各受光素子８，９で受光され
る。このときの光は、レンズ面６ａによって強弱のある
パルス光として受光され、この受光に基づいて、回転部
６の回転量が得られ、受光素子８と受光素子９とで起こ
る受光の位相差によって回転部６の回転方向が検出され
る。When the rotating section 6 is rotated in a predetermined direction by the shaft 5, light from the light emitting element 7 is received by the light receiving elements 8, 9 after being reflected by the prism section 6b. The light at this time is received by the lens surface 6a as pulsed light having high and low levels. Based on the received light, the amount of rotation of the rotating unit 6 is obtained. The rotation direction of the rotation unit 6 is detected.
【００１５】また、ロータリエンコーダ１にクリック感
をもたせる方策として、回転部６に並設させるようにし
て環状のギア部１０を設け、このギア部１０には、外周
に複数の歯部１０ａが等ピッチで形成され、シャフト５
に圧入固定されている。各歯部１０ａの間には谷部１０
ｂが形成され、谷部１０ｂの数によってパルス数すなわ
ちクリック数が決定される。この場合、２５パルスであ
る。As a measure to give the rotary encoder 1 a click feeling, an annular gear portion 10 is provided so as to be juxtaposed with the rotating portion 6, and the gear portion 10 has a plurality of teeth 10a on its outer periphery. Shaft 5 formed at pitch
Is press-fitted and fixed. The valley 10 is located between the teeth 10a.
The number of pulses, that is, the number of clicks is determined by the number of valleys 10b. In this case, there are 25 pulses.
【００１６】これに対して、ハウジング４のボディ３に
は、ギア部１０の径方向に延在する押圧素子収容部１１
が設けられ、押圧素子収容部１１は、内方側を開放させ
た溝部としてボディ３に一体に作り込まれている。押圧
素子収容部１１は所定の幅の溝部として形成され、この
幅は、ギア部１０の谷部１０ｂに適切に嵌まり込む押圧
素子１３の外形の大きさに依存して決定されるものであ
る。On the other hand, the body 3 of the housing 4 has a pressing element housing 11 extending in the radial direction of the gear 10.
Is provided, and the pressing element housing portion 11 is integrally formed in the body 3 as a groove portion whose inner side is opened. The pressing element housing portion 11 is formed as a groove having a predetermined width, and the width is determined depending on the size of the outer shape of the pressing element 13 that is appropriately fitted into the valley portion 10b of the gear portion 10. .
【００１７】また、この押圧素子収容部１１内には、転
動体の一例である２個のボール（押圧素子）１３ａ，１
３ｂ及び螺旋状の圧縮バネ（弾性部材）１４が収容さ
れ、圧縮バネ１４によってボール１３ａ，１３ｂをギア
部１０に向け付勢させている。これらボール１３ａ，１
３ｂは、同質で同径のものであると同時に直列に並べら
れている。なお、ボール１３ａ，１３ｂは、摩耗の違い
を考慮し、異質の材料で異なる径であってもよい。Further, two balls (pressing elements) 13a, 13 which are examples of rolling elements are provided in the pressing element housing portion 11.
3b and a helical compression spring (elastic member) 14 are accommodated, and the compression spring 14 urges the balls 13a and 13b toward the gear portion 10. These balls 13a, 1
3b are of the same quality and the same diameter and are arranged in series. The balls 13a and 13b may be made of different materials and have different diameters in consideration of the difference in wear.
【００１８】よって、ボール１３ａとボール１３ｂとの
接触は、より点接触に近づけられ、前側のボール１３ａ
は、圧縮バネ１４の影響を受けないばかりか、極めて転
がり性がよくなっている。従って、ギア部１０とボール
１３ａとが、滑り接触ではなく転がり接触を維持するこ
とになるので、滑らかなクリック感とクリック寿命の格
段の向上とが同時に満足される。また、ギア部１０及び
ボール１３ａ，１３ｂの摩耗が極めて少なくなり、歯部
１０ａの表面に摩耗粉が付着する事態も低減させ、クリ
ック感の信頼性が格段に向上する。Therefore, the contact between the ball 13a and the ball 13b is closer to the point contact, and
Is not only affected by the compression spring 14 but also has extremely good rolling properties. Therefore, since the gear portion 10 and the ball 13a maintain the rolling contact, not the sliding contact, the smooth click feeling and the remarkable improvement of the click life are simultaneously satisfied. Further, the wear of the gear portion 10 and the balls 13a and 13b is extremely reduced, the situation where the wear powder adheres to the surface of the tooth portion 10a is reduced, and the reliability of the click feeling is remarkably improved.
【００１９】そして、押圧素子収容部１１は、圧縮バネ
１４及びボール１３ａ，１３ｂの装填を考慮して、上方
が開放された溝部であるから、圧縮バネ１４及びボール
１３ａ，１３ｂを収容した状態で、押え板１５によって
蓋がなされ、この押え板１５は、ボディ３に形成したリ
ブ部３ａに当接させてネジ止めしている。従って、押え
板１５によって、圧縮バネ１４及びボール１３ａ，１３
ｂの飛び出しが適切に防止されると共に、バネ１４及び
ボール１３ａ，１３ｂの同時組み込みを容易にする。Since the pressing element housing 11 is a groove which is open at the top in consideration of the loading of the compression spring 14 and the balls 13a and 13b, the pressing element housing 11 holds the compression spring 14 and the balls 13a and 13b. The cover plate 15 is covered by a cover plate 15 which is screwed by abutting against a rib 3 a formed on the body 3. Therefore, the compression spring 14 and the balls 13a, 13
b is appropriately prevented from jumping out, and simultaneous installation of the spring 14 and the balls 13a and 13b is facilitated.
【００２０】次に、他の実施形態であるロータリエンコ
ーダ２０について説明する。なお、前述した実施形態と
同一又は同等な構成部分には同一の符号を付し、その説
明は省略する。特に、回転部６及び検出部Ｐの構成は共
通するので、説明は省略する。Next, a rotary encoder 20 according to another embodiment will be described. Note that the same or equivalent components as those of the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted. In particular, since the configurations of the rotating unit 6 and the detecting unit P are common, the description is omitted.
【００２１】図３及び図４に示すように、ロータリエン
コーダ２０は、上蓋をなす回路基板２２とボディ２３と
からなるハウジング２４を有している。このハウジング
２４には、回転軸線をもつシャフト２５が装着され、こ
のシャフト２５の一端は、ハウジング２４の内部空間Ｓ
１内に差込まれ、その他端は外部に露出させてツマミの
軸部を形成する。As shown in FIGS. 3 and 4, the rotary encoder 20 has a housing 24 including a circuit board 22 serving as an upper lid and a body 23. A shaft 25 having a rotation axis is mounted on the housing 24, and one end of the shaft 25 is connected to an internal space S of the housing 24.
1 and the other end is exposed to the outside to form a knob shaft.
【００２２】ロータリエンコーダ２０にクリック感をも
たせる方策として、ボディ２３に環状のギア部３０を設
け、このギア部３０は、ボディ２３の内部に形成した環
状のリブ部２３ａの内壁面に沿うようにして、ボディ２
３に取り付けられている。このギア部３０には、内周に
複数の歯部３０ａが等ピッチで形成され、ボディ２３に
圧入固定されている。各歯部３０ａの間には谷部３０ｂ
が形成されて、谷部３０ｂの数によってパルス数すなわ
ちクリック数が決定される。この場合、２５パルスであ
る。As a measure to give the rotary encoder 20 a click feeling, an annular gear portion 30 is provided on the body 23, and the gear portion 30 is arranged along the inner wall surface of the annular rib portion 23a formed inside the body 23. And body 2
3 is attached. The gear portion 30 has a plurality of teeth 30a formed at an equal pitch on an inner periphery thereof, and is press-fitted and fixed to the body 23. A valley 30b is located between each tooth 30a.
Is formed, and the number of pulses, that is, the number of clicks is determined by the number of valleys 30b. In this case, there are 25 pulses.
【００２３】これに対して、シャフト５側に押圧素子収
容部３１を設けている。押圧素子収容部３１は、シャフ
ト２５に圧入固定させたリング部２６内に作り込まれて
おり、対向した状態でギア部３０の径方向に延在させて
いる。押圧素子収容部３１は、リング部２６とシャフト
２５に跨がって形成され、リング部２６では外方側を開
放させた溝部として形成され、シャフト２５では穴とし
て形成されている。押圧素子収容部３１は所定の幅の溝
部として形成され、この幅は、ギア部３０の谷部３０ｂ
に適切に嵌まり込む押圧素子３３の外形の大きさに依存
して決定されるものである。On the other hand, a pressing element housing 31 is provided on the shaft 5 side. The pressing element housing portion 31 is formed in a ring portion 26 which is press-fitted and fixed to the shaft 25, and extends in a radial direction of the gear portion 30 in a state where the pressing element housing portion 31 faces the shaft portion. The pressing element housing portion 31 is formed so as to straddle the ring portion 26 and the shaft 25. The ring portion 26 is formed as a groove having an open outer side, and the shaft 25 is formed as a hole. The pressing element housing portion 31 is formed as a groove having a predetermined width, and the width is set to the valley portion 30 b of the gear portion 30.
This is determined depending on the size of the outer shape of the pressing element 33 that fits properly into the device.
【００２４】また、この押圧素子収容部３１内には、転
動体の一例である２個の金属製ボール（押圧素子）３３
ａ，３３ｂ及び螺旋状の圧縮バネ（弾性部材）３４が収
容され、圧縮バネ３４によってボール３３ａ，３３ｂを
ギア部３０に向け付勢させている。これらボール３３
ａ，３３ｂは、同質で同径のものであると同時に直列に
並べられている。なお、ボール３３ａ，３３ｂは、摩耗
の違いを考慮し、異質の材料で異なる径であってもよ
い。Further, two metal balls (pressing elements) 33, which are examples of rolling elements, are provided in the pressing element housing portion 31.
a, 33b and a spiral compression spring (elastic member) 34 are housed therein, and the compression spring 34 urges the balls 33a, 33b toward the gear portion 30. These balls 33
a and 33b are of the same quality and the same diameter and are arranged in series. The balls 33a and 33b may be made of different materials and have different diameters in consideration of the difference in wear.
【００２５】よって、ボール３３ａとボール３３ｂとの
接触は、より点接触に近づけられ、前側のボール３３ａ
は、圧縮バネ３４の影響を受けないばかりか、極めて転
がり性がよくなっている。従って、ギア部３０とボール
３３ａとが、滑り接触ではなく転がり接触を維持するこ
とになるので、滑らかなクリック感とクリック寿命の格
段の向上とが同時に満足される。また、ギア部３０及び
ボール３３ａ，３３ｂの摩耗が極めて少なくなり、歯部
３０ａの表面に摩耗粉が付着する事態も低減させ、クリ
ック感の信頼性が格段に向上する。Therefore, the contact between the ball 33a and the ball 33b is closer to the point contact, and
Is not only affected by the compression spring 34 but also has extremely good rolling properties. Therefore, since the gear portion 30 and the ball 33a maintain the rolling contact, not the sliding contact, the smooth click feeling and the remarkable improvement of the click life are simultaneously satisfied. Further, the wear of the gear portion 30 and the balls 33a and 33b is extremely reduced, the situation where the wear powder adheres to the surface of the tooth portion 30a is reduced, and the reliability of the click feeling is remarkably improved.
【００２６】そして、押圧素子収容部３１は、圧縮バネ
３４及びボール３３ａ，３３ｂの装填を考慮して、下方
が開放された溝部をもつから、圧縮バネ３４及びボール
３３ａ，３３ｂを収容した状態で、リング状の押え板３
５によって蓋がなされ、この押え板３５は、リング部２
６の下面に当接させネジ止めしている。従って、押え板
３５によって、圧縮バネ３４及びボール３３ａ，３３ｂ
の飛び出しが適切に防止されると共に、バネ３４及びボ
ール３３ａ，３３ｂの同時組み込みを容易にする。Since the pressing element housing portion 31 has a groove whose lower side is opened in consideration of the loading of the compression spring 34 and the balls 33a and 33b, the pressing element housing portion 31 holds the compression spring 34 and the balls 33a and 33b. , Ring-shaped holding plate 3
5, and the holding plate 35 is
6 and screwed down. Therefore, the compression spring 34 and the balls 33a, 33b are
Is properly prevented, and the spring 34 and the balls 33a and 33b are easily incorporated at the same time.
【００２７】本発明のロータリエンコーダは、前述した
種々の実施形態に限定されない。例えば、ロータリエン
コーダ１，２０は、前述したように回転部が光学式に対
応するものに限らず、機械式や磁気式のものであっても
よい。また、弾性部材１４，３４として、前述した螺旋
バネに限定されず、板バネ、竹の子バネやゴム等であっ
てもよい。The rotary encoder of the present invention is not limited to the various embodiments described above. For example, as described above, the rotary encoders 1 and 20 are not limited to those in which the rotating units correspond to the optical type, and may be mechanical or magnetic types. Further, the elastic members 14 and 34 are not limited to the spiral springs described above, but may be leaf springs, bamboo shoot springs, rubber, or the like.
【００２８】また、押圧素子１３，３３として、転動体
の一例であるボールに限定されず円柱体などの転がり面
をもったものであってもよい。なお、押圧素子１３，３
３としては砲弾形状のものなどがある。そして、押圧素
子１３，３３は、複数個であれば形状や個数に限定され
ず、３個を直列に並べる場合もある。The pressing elements 13 and 33 are not limited to balls, which are examples of rolling elements, but may be rolling elements such as cylindrical bodies. The pressing elements 13, 3
As 3, there is a shell-shaped one. The shape and number of the pressing elements 13 and 33 are not limited as long as they are plural, and three pressing elements may be arranged in series.
【００２９】[0029]
【発明の効果】本発明によるロータリエンコーダは、以
上のように構成されているため、次のような効果を得
る。すなわち、ハウジング内に回転自在に装着させたシ
ャフトと、ハウジングの内部空間内に収容させると共
に、シャフトに固定させた回転部と、回転部の変位を検
出する検出部と、ハウジングの内部空間内に収容させる
と共に、シャフトに取付けられて外周に複数の歯部をも
ったギア部と、ハウジング側で径方向に延在する押圧素
子収容部と、押圧素子収容部内で直列に並べられた複数
個の押圧素子と、押圧素子収容部内に収容させると共
に、押圧素子をギア部に向けて付勢する弾性部材とを備
えたことにより、クリック寿命の向上を図ることができ
る。Since the rotary encoder according to the present invention is configured as described above, the following effects can be obtained. That is, a shaft rotatably mounted in the housing, a rotating unit housed in the internal space of the housing and fixed to the shaft, a detecting unit for detecting a displacement of the rotating unit, and a rotating unit mounted in the housing. A gear portion attached to the shaft and having a plurality of teeth on the outer periphery, a pressing element receiving portion extending radially on the housing side, and a plurality of serially arranged in the pressing element receiving portion. By providing the pressing element and the elastic member that is housed in the pressing element housing portion and urges the pressing element toward the gear portion, the click life can be improved.
【００３０】同様に、シャフト側で押圧素子収容部を径
方向に延在させ、この押圧素子収容部内で複数個の押圧
素子を直列に並べることでも、クリック寿命の向上が図
られる。Similarly, the click life can be improved by extending the pressing element housing portion on the shaft side in the radial direction and arranging a plurality of pressing elements in series in the pressing element housing portion.
【図１】本発明に係るロータリエンコーダの第１の実施
形態を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a first embodiment of a rotary encoder according to the present invention.
【図２】図１のＩＩ−ＩＩ線に沿う断面図である。FIG. 2 is a sectional view taken along line II-II in FIG.
【図３】本発明に係るロータリエンコーダの第２の実施
形態を示す縦断面図である。FIG. 3 is a longitudinal sectional view showing a second embodiment of the rotary encoder according to the present invention.
【図４】図３のＩＶ−ＩＶ線に沿う断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG.
１，２０…ロータリエンコーダ、４，２４…ハウジン
グ、５，２４…シャフト、６…回転部、１０，３０…ギ
ア部、１０ａ，３０ａ…歯部、１１，３１…押圧素子収
容部、１３，３３…押圧素子、１３ａ，１３ｂ，３３
ａ，３３ｂ…ボール、１４，３４，…コイルバネ（弾性
部材）、Ｓ，Ｓ１…内部空間、Ｐ…検出部。1,20 rotary encoder, 4,24 housing, 5,24 shaft, 6 rotating part, 10,30 gear part, 10a, 30a tooth part, 11,31 ... pressing element housing part, 13,33 ... Pressing elements, 13a, 13b, 33
a, 33b ball, 14, 34, coil spring (elastic member), S, S1 internal space, P detection unit.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2F077 AA42 NN02 NN28 PP19 QQ03 QQ13 VV09 VV23 2F103 CA03 CA06 DA01 DA13 EC01 EC13 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2F077 AA42 NN02 NN28 PP19 QQ03 QQ13 VV09 VV23 2F103 CA03 CA06 DA01 DA13 EC01 EC13
Claims (4)
ャフトと、 前記ハウジングの内部空間内に収容させると共に、前記
シャフトに固定させた回転部と、 前記回転部の変位を検出する検出部と、 前記ハウジングの内部空間内に収容させると共に、前記
シャフトに取付けられて外周に複数の歯部をもったギア
部と、 前記ハウジング側で径方向に延在する押圧素子収容部
と、 前記押圧素子収容部内で直列に並べられた複数個の押圧
素子と、 前記押圧素子収容部内に収容させると共に、前記押圧素
子を前記ギア部に向けて付勢する弾性部材とを備えたこ
とを特徴とするロータリエンコーダ。A shaft rotatably mounted in a housing; a rotating unit housed in an internal space of the housing and fixed to the shaft; a detecting unit detecting displacement of the rotating unit; A gear part attached to the shaft and having a plurality of teeth on the outer periphery, housed in the internal space of the housing, a pressing element housing part extending in the radial direction on the housing side, and the pressing element housing A rotary encoder comprising: a plurality of pressing elements arranged in series in a unit; and an elastic member housed in the pressing element housing unit and biasing the pressing element toward the gear unit. .
ャフトと、 前記ハウジングの内部空間内に収容させると共に、前記
シャフトに固定させた回転部と、 前記回転部の変位を検出する検出部と、 前記ハウジングの内部空間内に収容させると共に、前記
ハウジングに取付けられて内周に複数の歯部をもったギ
ア部と、 前記シャフト側で径方向に延在する押圧素子収容部と、 前記押圧素子収容部内で直列に並べられた複数個の押圧
素子と、 前記押圧素子収容部内に収容させると共に、前記押圧素
子を前記ギア部に向けて付勢する弾性部材とを備えたこ
とを特徴とするロータリエンコーダ。2. A shaft rotatably mounted in a housing, a rotating unit housed in an internal space of the housing and fixed to the shaft, and a detecting unit for detecting a displacement of the rotating unit; A gear portion that is accommodated in the internal space of the housing and that is attached to the housing and has a plurality of teeth on the inner periphery; a pressing element housing portion that extends radially on the shaft side; A rotary device comprising: a plurality of pressing elements arranged in series in a housing portion; and an elastic member housed in the pressing element housing portion and biasing the pressing element toward the gear portion. Encoder.
前記ギア部と接触する前記押圧素子を転動体にしたこと
を特徴とする請求項１又は２記載のロータリエンコー
ダ。3. The rotary encoder according to claim 1, wherein at least one of the plurality of pressing elements, which is in contact with the gear portion, is a rolling element.
たことを特徴とする請求項１又は２記載のロータリエン
コーダ。4. The rotary encoder according to claim 1, wherein all of the plurality of pressing elements are rolling elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21071399A JP4237882B2 (en) | 1999-07-26 | 1999-07-26 | Rotary encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21071399A JP4237882B2 (en) | 1999-07-26 | 1999-07-26 | Rotary encoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001033273A true JP2001033273A (en) | 2001-02-09 |
| JP4237882B2 JP4237882B2 (en) | 2009-03-11 |
Family
ID=16593880
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21071399A Expired - Lifetime JP4237882B2 (en) | 1999-07-26 | 1999-07-26 | Rotary encoder |
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| Country | Link |
|---|---|
| JP (1) | JP4237882B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912436A (en) * | 2020-08-05 | 2020-11-10 | 广州彩熠灯光股份有限公司 | Self-powered rotation sensing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424079U (en) * | 1977-07-20 | 1979-02-16 | ||
| JPS61182591A (en) * | 1985-02-08 | 1986-08-15 | Casio Comput Co Ltd | Switching device |
| JPS63134991A (en) * | 1986-11-26 | 1988-06-07 | Citizen Watch Co Ltd | Rotary bezel structure for timepiece |
| JPH0223720U (en) * | 1988-07-30 | 1990-02-16 | ||
| JPH0566824U (en) * | 1992-02-13 | 1993-09-03 | 株式会社東海理化電機製作所 | Moderation mechanism of switch device |
| JP3002835U (en) * | 1994-04-06 | 1994-10-04 | 東京測定器材株式会社 | Light reflection type rotary encoder |
| JPH07122155A (en) * | 1993-10-20 | 1995-05-12 | Anritsu Corp | Multistage pushbutton switch |
-
1999
- 1999-07-26 JP JP21071399A patent/JP4237882B2/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424079U (en) * | 1977-07-20 | 1979-02-16 | ||
| JPS61182591A (en) * | 1985-02-08 | 1986-08-15 | Casio Comput Co Ltd | Switching device |
| JPS63134991A (en) * | 1986-11-26 | 1988-06-07 | Citizen Watch Co Ltd | Rotary bezel structure for timepiece |
| JPH0223720U (en) * | 1988-07-30 | 1990-02-16 | ||
| JPH0566824U (en) * | 1992-02-13 | 1993-09-03 | 株式会社東海理化電機製作所 | Moderation mechanism of switch device |
| JPH07122155A (en) * | 1993-10-20 | 1995-05-12 | Anritsu Corp | Multistage pushbutton switch |
| JP3002835U (en) * | 1994-04-06 | 1994-10-04 | 東京測定器材株式会社 | Light reflection type rotary encoder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912436A (en) * | 2020-08-05 | 2020-11-10 | 广州彩熠灯光股份有限公司 | Self-powered rotation sensing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4237882B2 (en) | 2009-03-11 |
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