JPH03200235A - Motor-driven diaphragm device - Google Patents
Motor-driven diaphragm deviceInfo
- Publication number
- JPH03200235A JPH03200235A JP34125089A JP34125089A JPH03200235A JP H03200235 A JPH03200235 A JP H03200235A JP 34125089 A JP34125089 A JP 34125089A JP 34125089 A JP34125089 A JP 34125089A JP H03200235 A JPH03200235 A JP H03200235A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- base plate
- coil bobbin
- motor
- plate
- 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
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 210000000078 claw Anatomy 0.000 description 22
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Diaphragms For Cameras (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
【発明の詳細な説明】
（ａ業上の利用分計）
この発明はビデオカメラ等の撮影装置に装備される電動
絞り装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Utilization in a business) The present invention relates to an electric aperture device installed in a photographing device such as a video camera.
第５図は従来、製造されてきた電動絞り装置の一例を示
した分解斜視図である。同図において、１は該絞り装置
の地板、２は地板１の一方の面（第５図では上側の面）
に固定される絞り羽根駆動用モータ、３は地板１の他方
の面（第５図では下側の面）に配置されるとともにモー
タ２の軸を中心として矢印方向に回動される絞り羽根駆
動レバー ４及び５は該レバー３の両端に係止されて該
レバー３の回動時に矢印ｆ１及びｆ２方向に動かされる
一対の絞り羽根、６は地板１の該他方の面（すなわち第
５図では下側の面）において地板１に固着されるカバー
７は地板１に取付けられるモータ駆動用プリント配線板
、８は絞り羽根４の開口縁に固着されたＮＤフィルター
である。FIG. 5 is an exploded perspective view showing an example of a conventional electric diaphragm device. In the figure, 1 is the main plate of the throttle device, and 2 is one surface of the main plate 1 (the upper surface in Fig. 5).
An aperture blade drive motor 3 is fixed to the main plate 1, and an aperture blade drive motor 3 is arranged on the other surface of the main plate 1 (the lower surface in FIG. 5) and is rotated in the direction of the arrow around the axis of the motor 2. Lever 4 and 5 are a pair of aperture blades that are locked to both ends of the lever 3 and are moved in the directions of arrows f1 and f2 when the lever 3 is rotated, and 6 is a pair of aperture blades that are fixed to both ends of the lever 3 and are moved in the directions of arrows f1 and f2 when the lever 3 is rotated. A cover 7 fixed to the main plate 1 on the lower side is a printed wiring board for driving a motor attached to the main plate 1, and 8 is an ND filter fixed to the opening edge of the aperture blade 4.
地板１には撮影光を通す光路孔１−１が貫設され、該光
路孔に隣接する位置にはモータ掴着は用の円筒状のヨー
ク支持座１−２が該地板と一体成形により突設されてい
る。また、ヨーク支持座１−２の内側には２木のコイル
ボビン固定棒１−３及び１−４が同じく地板１と一体成
形で突設されており、更に、ヨーク支持座１−１の外側
の位置には一対のプリント配線板取付用支柱１−５及び
１−６が同じく地板１と一体成形で突設されている。コ
イルボビン固定棒１−３及び１−４のそれぞれの先端面
と前記支柱１−５及び１−６のそれぞれの先端面とには
後述のビスをねじ込むための孔１−３ａ。An optical path hole 1-1 through which photographing light passes is provided through the base plate 1, and a cylindrical yoke support seat 1-2 for gripping the motor is integrally formed with the base plate and protrudes at a position adjacent to the optical path hole. It is set up. In addition, two wooden coil bobbin fixing rods 1-3 and 1-4 are integrally molded with the base plate 1 and protrude from the inside of the yoke support seat 1-2. At this position, a pair of printed wiring board mounting supports 1-5 and 1-6 are also integrally formed with the base plate 1 and project therefrom. Holes 1-3a are provided in the tip surfaces of the coil bobbin fixing rods 1-3 and 1-4, and in the tip surfaces of the pillars 1-5 and 1-6, respectively, into which screws, which will be described later, are screwed.
１−４ａ、 １−５ａ、 １−６ａがあけられてい
る。1-4a, 1-5a, and 1-6a are open.
ヨーク支持座１−２の内側の地板面にはヨーク支持座１
−２の中心となる位置に後述のロータ軸を挿通させるた
めの軸孔１−７が貫設されており、該孔１−７にはモー
タ２の該ロータ軸が挿入され、該ロータ軸は地板１の下
側の面から突出するようになっている。A yoke support seat 1 is installed on the base plate surface inside the yoke support seat 1-2.
A shaft hole 1-7 for inserting a rotor shaft (described later) is provided at the center of the motor 2, and the rotor shaft of the motor 2 is inserted into the hole 1-7. It protrudes from the lower surface of the base plate 1.
地板１の両側面にはねじ孔１−８ａ及び１−９ａが貫設
されている突部１−８及び１−９が形成されている。こ
の突部１−８及び１−９はカバー６の両側に突設された
耳片６−１及び６−２に対向して位置決めされ、耳片６
−１及び６−２に貫設されている孔６−１ａ及び６−２
ａとねし孔１−８ａ及び１−９ａとに不図示のビスを挿
入して締めつけすることによりカバー６が地板１に固着
されるようになっている。地板１の左側の端面には角形
突起１−１０及び１−１１が形成され、カバー６の端面
に設けられた突片６−３及び６−４の角穴６−３ａ及び
６−４ａに該角形突起１−１Ｏ及び１−１１を挿入する
ことによりカバー６を地板の下面側に取付けできるよう
になっている。また、カバー６の右側の端部には孔６−
５が貫設され、地板１には孔６−５に整列するねじ孔が
形成されており、ビスＢ１を孔６−５に挿通するととも
に該ねじ孔にねじ込むことによりカバー６が地板１に締
結されるようになっている。Projections 1-8 and 1-9 are formed on both sides of the base plate 1, through which screw holes 1-8a and 1-9a are inserted. These protrusions 1-8 and 1-9 are positioned opposite to the lug pieces 6-1 and 6-2 protruding from both sides of the cover 6.
Holes 6-1a and 6-2 penetrated through -1 and 6-2
The cover 6 is fixed to the base plate 1 by inserting screws (not shown) into the screw holes 1-8a and 1-9a and tightening them. Square protrusions 1-10 and 1-11 are formed on the left end face of the base plate 1, and fit into square holes 6-3a and 6-4a of protrusions 6-3 and 6-4 provided on the end face of the cover 6. By inserting the square projections 1-1O and 1-11, the cover 6 can be attached to the lower surface of the base plate. In addition, a hole 6-- is provided at the right end of the cover 6.
5 is installed through the base plate 1, and a screw hole aligned with the hole 6-5 is formed in the base plate 1, and the cover 6 is fastened to the base plate 1 by inserting the screw B1 into the hole 6-5 and screwing into the screw hole. It is now possible to do so.
絞り羽根駆動レバー３はその中央部に孔つきボタン３−
１を有するとともに、両端には絞り羽根と係合するビン
３−２及び３−３が突設されている。ボス３−１の孔に
はモータ２の前記ロータ軸が嵌着され、ビン３−２は絞
り羽根４の横方向溝４−１の中に相対摺動可能に挿入さ
れ、ビン３−３は絞り羽根５の横方向溝５−１の中に相
対摺動可能に挿入されるようになっている。ボス３−１
には該レバー３を常に一方の方向く絞り閉じ方向及び絞
り羽根厚停止位置方向）に付勢するための手戻りばね３
−４が嵌着されている。The aperture blade drive lever 3 has a button 3- with a hole in its center.
1, and pins 3-2 and 3-3 protruding from both ends to engage with the aperture blades. The rotor shaft of the motor 2 is fitted into the hole of the boss 3-1, the bin 3-2 is inserted into the lateral groove 4-1 of the aperture blade 4 so as to be relatively slidable, and the bin 3-3 is inserted into the lateral groove 4-1 of the aperture blade 4. It is inserted into the lateral groove 5-1 of the aperture blade 5 so as to be relatively slidable therein. Boss 3-1
There is a return spring 3 for always biasing the lever 3 in one direction (the aperture closing direction and the aperture blade thickness stop position direction).
-4 is fitted.
絞り羽根４及び５にはそれぞれの側縁部と平行に長溝４
シ２．４−３．５−２．５−３が貫設されており、該溝
の各々には地板１に突設されているガイドビン（図示せ
ず）が相対摺動可能に挿入されるようになっている。The aperture blades 4 and 5 have long grooves 4 parallel to their respective side edges.
2.4-3.5-2.5-3 are provided through the grooves, and guide bins (not shown) protruding from the base plate 1 are inserted into each of the grooves so as to be slidable relative to each other. It has become so.
モータ２は、地板１の軸孔１−７に挿入されるとともに
絞り羽根駆動レバー３のボス、３−１の孔に嵌入される
軸２−２を有した永久磁石製ロータ２−１．ロータ２−
１の外側に配置されて地板１のコイルボビン取付棒１−
３及び１−４に取付けられる一対のコイルボビン２−４
及び２−５．コイルボビン２−４に巻かれたコイル２−
６．コイルボビン２−５に巻かれたコイル２−７．コイ
ルボビン２−４及び２−５を包囲するとともに地板１の
ヨーク支持座１−２上に着座される円筒形のヨーク２−
１２． ヨーク２−１２の他方の端面に嵌装されると
ともに２木のビスＢ３によってボビン取付棒１−３及び
１−４に締結される軸受板２−１３．等の諸部材によっ
て構成されている。The motor 2 includes a permanent magnet rotor 2-1.The motor 2 has a shaft 2-2 that is inserted into the shaft hole 1-7 of the base plate 1 and also fitted into the hole of the boss of the aperture blade drive lever 3, 3-1. Rotor 2-
Coil bobbin mounting rod 1-
A pair of coil bobbins 2-4 attached to 3 and 1-4
and 2-5. Coil 2- wound on coil bobbin 2-4
6. Coil 2-7 wound around coil bobbin 2-5. A cylindrical yoke 2- that surrounds the coil bobbins 2-4 and 2-5 and is seated on the yoke support seat 1-2 of the main plate 1.
12. A bearing plate 2-13 is fitted onto the other end surface of the yoke 2-12 and fastened to the bobbin mounting rods 1-3 and 1-4 by two screws B3. It is composed of various members such as.
軸受板２−１３には、ロータ２−１の一方の軸２−３の
先端小径部を軸支する軸受孔２−１３ａと、コイルボビ
ン取付棒１−３の孔１−３８とコイルボビン取付棒１−
４の孔１−４８とにそれぞれねじ込まれる２木のビスＢ
３を挿通させるための孔２−１３ｂ及び２−１３ｃと、
が設けられている。The bearing plate 2-13 has a bearing hole 2-13a that pivotally supports the small diameter end portion of one shaft 2-3 of the rotor 2-1, a hole 1-38 of the coil bobbin mounting rod 1-3, and a hole 1-38 of the coil bobbin mounting rod 1. −
2 wooden screws B screwed into holes 1-48 of 4, respectively.
3 through holes 2-13b and 2-13c,
is provided.
軸受板２−１３の外側に配置されたプリント配線板７に
は、２本のし久Ｂ２を挿通させる７−１及び７−２と、
２本のビスＢ３を挿通させるための孔７−３及び７−４
と、が貫設されている。The printed wiring board 7 arranged on the outside of the bearing plate 2-13 has two wires 7-1 and 7-2 through which two wires B2 are inserted,
Holes 7-3 and 7-4 for inserting two screws B3
and are installed through it.
該プリント配線板７は孔７−１及びツー２に挿通される
２本のビスＢ２によって地板１の２本の支柱１−５及び
１−６の上に締結され、孔７−３及びツー４に挿通され
る２本のビスＢ３によって軸受板２−１３が地板１の２
本のコイルボビン取付棒１−３及び１−４に固定される
。The printed wiring board 7 is fastened onto the two supports 1-5 and 1-6 of the base plate 1 by two screws B2 inserted through the holes 7-1 and 2, and The two screws B3 inserted into the
It is fixed to the main coil bobbin mounting rods 1-3 and 1-4.
コイルボビン２−４には、コイル２−６の両端に接続さ
れた端子２−８及び２−９が突出しており、コイルボビ
ン２−５にはコイル２−７の両端に接続された端子２−
１Ｏ及び２−１１が突出しでいる。これらの端子はプリ
ント配線板７に穿設された端子孔７−５〜７−８に挿入
されてハンダ付けされる。Terminals 2-8 and 2-9 connected to both ends of the coil 2-6 protrude from the coil bobbin 2-4, and terminals 2-8 and 2-9 connected to both ends of the coil 2-7 protrude from the coil bobbin 2-5.
1O and 2-11 are prominent. These terminals are inserted into terminal holes 7-5 to 7-8 drilled in the printed wiring board 7 and soldered.
（発明が解決しようとする課題）
前記の如き構造の従来の電動絞り装置には次のような問
題があった。(Problems to be Solved by the Invention) The conventional electric throttle device having the above structure has the following problems.
（ｉ） モータ２を地板１に組付ける場合、ロータ２
−１を中に入れて二つのコイルボビン２−４及び２−５
を対対向して接触させ、コイルボビン２−４及び２−５
の外側を仮留めテープＴで巻いてロータ・ステータユニ
ットを作り、該ユニットを地板１と一体のコイルボビン
取付棒１−３及び１−４の間に第５図で上から挿入する
ことによってコイルボビンを該取付棒１−３及び１−４
に取付けていた。(i) When assembling motor 2 to base plate 1, rotor 2
-1 inside and two coil bobbins 2-4 and 2-5
The coil bobbins 2-4 and 2-5 are brought into contact with each other facing each other.
Wrap the outside with temporary tape T to create a rotor-stator unit, and insert the unit from above between the coil bobbin mounting rods 1-3 and 1-4, which are integrated with the main plate 1, as shown in Fig. 5 to attach the coil bobbin. The mounting rods 1-3 and 1-4
It was installed on.
しかしながら、コイルボビン取付棒１−３及び１−４が
長いので地板１を射出成形によって製作すると該取付棒
が地板１に対して垂直にならずに曲ったり、斜めに傾い
たりすることが多いため地板１に対するコイルボビン取
付けができなかったり、或いはロータ２−１の軸２−２
が傾いたりする等の不具合が発生しやすく、その結果、
モータの回転が不均一になったり、組立精度の不良によ
る製品歩留りの低下などが起りやすかった。However, since the coil bobbin mounting rods 1-3 and 1-4 are long, if the main plate 1 is manufactured by injection molding, the mounting rods are often bent or tilted diagonally instead of being perpendicular to the main plate 1. If the coil bobbin cannot be attached to 1 or the shaft 2-2 of rotor 2-1
Problems such as tilting are likely to occur, and as a result,
It was easy for the motor to rotate unevenly and to reduce product yield due to poor assembly accuracy.
（ｉ ｉ）カバー６は孔６−１ａ及び６−２ａ並びに６
−５に挿入されるビスによって地板１に締結されていた
が、カバー６は薄いので曲ったり反ったりしやすいため
、３本のビスの締付個所の締付力の相異によって反りや
曲りやよじれが生じる恐れがあった。そして、地仮に取
付けられたカバー６に反りやよじれや曲りがあると、絞
り羽根とカバー６とが接触し、その結果、絞り羽根の動
作が不正確になったり、動作速度に著しい変動が生じて
正確な露出ができない恐れがあった。また、従来のカバ
ー取付構造ではビスを使用してカバーを地板にねし留め
しているのでカバー取付工数及びカバー取付時間並びに
コストが大きく、絞り装置の低コスト化が妨げられてい
た。(i i) The cover 6 has holes 6-1a, 6-2a and 6
The cover 6 is fastened to the main plate 1 by screws inserted into the screws 5 and 6, but since the cover 6 is thin and easily bends or warps, the difference in the tightening force of the three screws may cause the warp or bend. There was a risk of twisting. If the cover 6 temporarily attached to the ground is warped, twisted, or bent, the aperture blades will come into contact with the cover 6, resulting in inaccurate operation of the aperture blades or significant fluctuations in operating speed. There was a risk that accurate exposure would not be possible. Further, in the conventional cover mounting structure, the cover is screwed to the base plate using screws, which increases the number of man-hours, time, and cost for mounting the cover, which hinders cost reduction of the diaphragm device.
本発明の目的は、従来の絞り装置よりも組立精度及び製
品歩留りがよく、また、低コストで製造でき、しかも絞
り羽根の動作が不正確になる恐れのない、改良された電
動絞り装置を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide an improved electric diaphragm device that has better assembly accuracy and product yield than conventional iris devices, can be manufactured at lower cost, and is free from the risk of inaccurate aperture blade operation. It is to be.
〔課題を解決するための手段）
従来の電動絞り装置では、プラスチック製の地板上に一
体成形した長いコイルボビン取付棒にコイルボビンを取
付けるように構成されていたので、前述のようにコイル
ボビン取付棒の傾きによるモータ軸の傾きや組立精度不
良が発生しやすかった。それ故、本発明では従来装置の
如き長いコイルボビン取付棒１−３及び１−４を廃止す
るとともに、実質的に軸受板２−１３の支持部材となっ
ている長い支柱１−５及びｔ−ｅをも廃止した。そして
、本発明装置では、コイルボビンをビン及び短かいスナ
ップ式係止突起で地板に固定し、該コイルボビンに設け
たビン及びスナップ式係止爪で軸受板及びプリント配線
板を該コイルボビンに固定するように構成した。従って
本発明装置では、従来装置で発生しやすかったモータ軸
の傾きや組立精度不良が発生する恐れがなくなり、モー
タの回転の不均一や組立歩留りの低下が生じる恐れがな
くなった。[Means for solving the problem] In conventional electric drawing devices, the coil bobbin is attached to a long coil bobbin mounting rod that is integrally molded on the plastic base plate, so as mentioned above, the inclination of the coil bobbin mounting rod is fixed. Due to this, tilting of the motor shaft and poor assembly accuracy were likely to occur. Therefore, in the present invention, the long coil bobbin mounting rods 1-3 and 1-4 as in the conventional device are abolished, and the long columns 1-5 and t-e, which are substantially the supporting members of the bearing plate 2-13, are eliminated. was also abolished. In the device of the present invention, the coil bobbin is fixed to the main plate with the pin and the short snap-type locking protrusion, and the bearing plate and the printed wiring board are fixed to the coil bobbin with the pin and the snap-type locking claw provided on the coil bobbin. It was configured as follows. Therefore, in the apparatus of the present invention, there is no possibility of the inclination of the motor shaft or poor assembly accuracy, which tend to occur in conventional apparatuses, and there is no possibility of non-uniform rotation of the motor or a decrease in assembly yield.
本発明の装置では、成形精度の高いコイルボビンに軸受
板及びプリント配線板係止用の爪を設け、該コイルボビ
ンは地板上に設けた高さの低いスナップ式係止突起によ
り該地板に固定されるようになっているため、地板の成
形精度によってモータ軸線が傾いてしまうという現象を
防止でき、従って、従来装置に生じやすかった問題が解
決された。In the device of the present invention, a coil bobbin with high molding accuracy is provided with claws for locking a bearing plate and a printed wiring board, and the coil bobbin is fixed to the base plate by a low-height snap-type locking protrusion provided on the base plate. As a result, it is possible to prevent the motor axis from tilting due to the precision of forming the base plate, thus solving the problems that tend to occur in conventional devices.
一方、本発明装置では前述の（ｉ ｉ）に記載した問題
を解決するために地板の側縁部とカバーの側縁部とに係
止手段を形成し、該地板に対して該カバーを平行にスラ
イドさせることによって該係止手段を作用させて該地板
に該カバーを固定させるようにした。従って、本発明の
装置は、カバーが地板に対して複数本のビスによって締
結されるカバー取付構造を有していないので、カバーの
反りや曲りやよじれなどが発生する恐れがなく、その結
果、カバーと絞り羽根とが接触する恐れがなくなり、従
りて、絞り羽根の動作を不正確になったりする恐れもな
くなった。また、本発明の装置ではカバーと地板との取
付構造がビスによる締結構造ではないため、従来装置よ
りも低コストで製造することができる。On the other hand, in the device of the present invention, in order to solve the problem described in (ii) above, locking means are formed on the side edges of the main plate and the side edges of the cover, and the cover is held parallel to the main plate. By sliding the cover to the base plate, the locking means is activated to fix the cover to the base plate. Therefore, since the device of the present invention does not have a cover mounting structure in which the cover is fastened to the base plate with a plurality of screws, there is no fear that the cover will warp, bend, or twist. There is no longer a risk that the cover and the aperture blades will come into contact with each other, and therefore, there is no longer a risk that the aperture blades will operate incorrectly. Further, in the device of the present invention, since the attachment structure between the cover and the base plate is not a fastening structure using screws, it can be manufactured at a lower cost than conventional devices.
（実 施 例）
以下に第１図乃至第４図を参照して本発明の電動絞り装
置の一実施例について説明する。なお、第１図において
第５図と同一の符号で表示されている部材は第５図に示
した従来装置の構成部材と同じものであるから、この同
一部材については説明を省略する。(Embodiment) An embodiment of the electric diaphragm device of the present invention will be described below with reference to FIGS. 1 to 4. In FIG. 1, members indicated by the same reference numerals as those in FIG. 5 are the same as the constituent members of the conventional device shown in FIG. 5, and therefore, descriptions of these same members will be omitted.
第１図において、９は地板、１０は地板９に取付けられ
るカバー １１はモータ、１２はモータ１１に対する電
気配線を施したプリント配線板、である。In FIG. 1, 9 is a base plate, 10 is a cover attached to the base plate 9, 11 is a motor, and 12 is a printed wiring board on which electrical wiring for the motor 11 is provided.
地板９には、光路孔９−１．モータ１１のヨークを載置
するためのヨーク支持座９−２゜ヨーク支持座９−２の
上面に突設されたヨーク位置決め片９−３．ヨーク支持
材９−２の内側の地板面に突設された丈の低い一対のコ
イルボビン固定用のスナップ式係止突起９−４及び９−
５．モータ１１の軸を挿通させるためのモータ用軸孔９
−６．コイルボビン固定用兼位置決め用の位置決めビン
挿入穴９−７及び９−８゜カバー１０の側縁部の溝に係
止される突起９−９及び９−１０．等が形成されている
。なお、カバー１０の側縁部の溝に係止される突起は地
板９の他方の側縁部にも設けられているが、第１図では
図示されていない。The main plate 9 has optical path holes 9-1. A yoke support seat 9-2 on which the yoke of the motor 11 is placed; a yoke positioning piece 9-3 protruding from the upper surface of the yoke support seat 9-2; A pair of short snap-type locking protrusions 9-4 and 9- for fixing coil bobbins protrudes from the base plate inside the yoke support member 9-2.
5. Motor shaft hole 9 for inserting the shaft of the motor 11
-6. Positioning bin insertion holes 9-7 and 9-8 for fixing and positioning the coil bobbin; protrusions 9-9 and 9-10 that are engaged in grooves on the side edges of the cover 10; etc. are formed. Note that a protrusion that is engaged with the groove on the side edge of the cover 10 is also provided on the other side edge of the base plate 9, but is not shown in FIG.
カバー１０の両側縁部には、地板９の突起９−９を係止
するための溝１０−１ 、地他９の突起９−１０を係止
するための溝１０−２、地板９の他方の側縁部の２つの
突起（図示せず）を係止するための溝１０−３及び１０
−４、が形成されている。また、カバー１０の一方の端
縁には地板９の端縁部に形成されたフランジ９−１０ａ
付き突部９−１１のボス部９−１１ｂを嵌合させるため
の切欠き１０−５が形成されている。On both side edges of the cover 10, there are grooves 10-1 for locking the protrusions 9-9 on the base plate 9, grooves 10-2 for locking the protrusions 9-10 on the base plate 9, and the other side of the base plate 9. grooves 10-3 and 10 for locking two protrusions (not shown) on the side edges of the
-4, is formed. Further, one edge of the cover 10 is provided with a flange 9-10a formed at the edge of the base plate 9.
A notch 10-5 is formed into which the boss portion 9-11b of the attached protrusion 9-11 is fitted.
溝１Ｏ−１〜１０−４は第１図に示されるように２段溝
として形成されており、第２図に示すように、浅い溝部
１Ｏ−１ａと深い溝部１０−１ｂとによって構成されて
いる。（溝１０−１〜１０−４はいずれも同じ構造であ
るから溝１０−１のみについて説明する。）
カバー１０を地板９に固定する前には、カバー１０の溝
１Ｏ−１と地板９の突起９−９との相対的位置関係は第
２図のようになっている。The grooves 1O-1 to 10-4 are formed as two-step grooves as shown in FIG. 1, and are composed of a shallow groove portion 1O-1a and a deep groove portion 10-1b as shown in FIG. There is. (Since the grooves 10-1 to 10-4 all have the same structure, only the groove 10-1 will be explained.) Before fixing the cover 10 to the base plate 9, the groove 1O-1 of the cover 10 and the groove 10-1 of the base plate 9 are The relative positional relationship with the protrusion 9-9 is as shown in FIG.
すなわち、突起９−９は溝１０−１の深い溝部１０−１
ｂに位置している。カバー１０を地板９に結合させる時
にカバー１０を第２図において右向きにスライドさせる
と、突起９−９は溝部１０−１ｂの端面に強く押しつけ
られた後、該端面から受ける反力によって矢印ｆ３のよ
うに外側へたわみ、その結果、該突起９−９は鎖線で示
されるように浅い溝部１０−１ｂへ移動するとともにそ
れ自身の弾発力によって該溝部１０−１ａの溝底面１０
−１ｃに強く圧接される。従って、カバー１０は地板９
の４個の突起によってクランプされた状態となり、地板
９にしっかりと固定される。That is, the protrusion 9-9 is located in the deep groove portion 10-1 of the groove 10-1.
It is located at b. When the cover 10 is slid to the right in FIG. 2 when the cover 10 is coupled to the base plate 9, the protrusion 9-9 is strongly pressed against the end face of the groove 10-1b, and then moves as indicated by the arrow f3 due to the reaction force received from the end face. As a result, the protrusion 9-9 moves to the shallow groove 10-1b as shown by the chain line, and the projection 9-9 moves to the bottom surface 10 of the groove 10-1a by its own elastic force.
-1c is strongly pressed. Therefore, the cover 10 is
It is in a clamped state by the four protrusions of and is firmly fixed to the base plate 9.
一方、カバー１０を地板９に対して右向きにスライドさ
せた時にカバー１０の端縁の切欠き１０−５に地板９の
突部９−１１が押込まれ、該突部９−１１が切欠き１Ｏ
−５の側壁面間に挾みつけられる。また、カバー１０は
該突部９−１１のフランジ９−１１ａによって板厚方向
には動けぬように拘束される。On the other hand, when the cover 10 is slid rightward with respect to the base plate 9, the protrusion 9-11 of the base plate 9 is pushed into the notch 10-5 on the edge of the cover 10, and the protrusion 9-11 is inserted into the notch 10-5.
It is sandwiched between the side walls of -5. Further, the cover 10 is restrained by the flange 9-11a of the protrusion 9-11 so as not to move in the thickness direction.
ここで再び第１図に戻ってモータ１１の構造について説
明する。Now, returning to FIG. 1 again, the structure of the motor 11 will be explained.
モータ１１は、軸１１−２及び１１−３を有する永久磁
石製のロータ１１−１ 、該ロータ１１−１を包囲した
互いに対向配置された一対のコイルボビン１１−４及び
１１−５ 、コイルボビン１１−４及び１１−５に巻か
れているコイル１１−６及び１１−７ 、コイルボビン
１１−４及び１１−５を包囲するとともに地板９のヨー
ク支持座９−２の上に固定されるヨーク１１−８ 、
ヨーク１ｌ−Ｆ３の−噛に嵌装されるとともにコイル
ボビン１１−４及び１１−５の後述の係止爪によって把
持される軸受板１１−９ 、前記係止爪によって軸受板
１１−９とともに把持されるプリント配線板１１−１０
．によって構成されている。The motor 11 includes a permanent magnet rotor 11-1 having shafts 11-2 and 11-3, a pair of coil bobbins 11-4 and 11-5 surrounding the rotor 11-1 and facing each other, and a coil bobbin 11-5. 4 and 11-5, and a yoke 11-8 that surrounds the coil bobbins 11-4 and 11-5 and is fixed on the yoke support seat 9-2 of the main plate 9. ,
A bearing plate 11-9 is fitted into the jaws of the yoke 11-F3 and is held by the later-described locking claws of the coil bobbins 11-4 and 11-5, and the bearing plate 11-9 is held together with the bearing plate 11-9 by the locking claws. Printed wiring board 11-10
．． It is made up of.
ロータ１１−１の一方の軸１１−２は地板９の軸孔９−
５に挿通されるとともに絞り羽根駆動レバー３のボス３
−１の軸受に嵌入される。ロータ１１−１の他方の軸１
１−３は軸受板１１−９の軸受部１ｌ−９ａに挿入され
て回転可能に支持される。One shaft 11-2 of the rotor 11-1 has a shaft hole 9- in the base plate 9.
5 and the boss 3 of the aperture blade drive lever 3
-1 is inserted into the bearing. The other shaft 1 of rotor 11-1
1-3 is inserted into the bearing portion 1l-9a of the bearing plate 11-9 and is rotatably supported.
コイルボビン１１−４及び１１−５の一方の端面には、
軸受板１１−９及びプリント配線板１１−１０を係止す
るための係止爪１ｌ−４ａ、 １ｌ−４ｂ、 １１−５
ａ、 １ｌ−５ｂが突設されるとともに軸受板１１−９
をコイルボビン１１−４及び１１−５に対して正確に位
置決めするためのビン１ｌ−４ｃ、 １ｌ−４ｄ、 １
ｌ−５ｃ、 １ｌ−５ｄが突設されている。また、コイ
ルボビン１１−４及び１１−５の下面（すなわち、地板
９の面に対向する面）にはコイルボビン１１−４及び１
１−５を地板９に対して位置決めするためのビン１１−
４ｅ、 ｔｔ −４ｆ（第１図ではコイルポイン１１−
５の下面に突設されているビンは描かれていないが、コ
イルボビン１１−５の下面にもビンが突設されている。On one end surface of the coil bobbins 11-4 and 11-5,
Locking claws 1l-4a, 1l-4b, 11-5 for locking the bearing plate 11-9 and the printed wiring board 11-10
a, 1l-5b is provided protrudingly, and the bearing plate 11-9
Bins 1l-4c, 1l-4d, 1 for accurately positioning the coil bobbins 11-4 and 11-5.
1-5c and 11-5d are provided protrudingly. Further, the lower surfaces of the coil bobbins 11-4 and 11-5 (that is, the surface facing the surface of the main plate 9) are provided with the coil bobbins 11-4 and 11-5.
Bin 11- for positioning 1-5 with respect to the main plate 9
4e, tt -4f (coil point 11- in Figure 1)
Although a bottle protruding from the lower surface of coil bobbin 11-5 is not shown, a bottle is also protruding from the lower surface of coil bobbin 11-5.
）が突設されており、ビン１ｌ−４ｅは地板９の穴９−
７に、ビン１ｌ−４ｆは地板９の穴９−８に、それぞれ
挿入されるようになっている。) is provided protrudingly, and the bottle 1l-4e is inserted into the hole 9- of the main plate 9.
7, the bottles 1l-4f are inserted into holes 9-8 of the base plate 9, respectively.
軸受板１１−９には、ロータ１１−１の軸１１−３を回
転可能に支持する軸受部１ｌ−９ａ、コイルボビン１１
−４の係止爪１ｌ−４ａ及びコイルボビン１１−５の係
止爪１ｌ−５ａが入り込む切欠き１ｌ−９ｂ。The bearing plate 11-9 includes a bearing portion 1l-9a that rotatably supports the shaft 11-3 of the rotor 11-1, and a coil bobbin 11.
-4 locking claw 1l-4a and coil bobbin 11-5 locking claw 1l-5a are inserted into the notch 1l-9b.
コイルボビン１１−４の係止爪１ｌ−４ｂ及びコイルボ
ビン１１−５の係止爪１ｌ−５ｂが入り込む切欠き１ｌ
−９ｃ、コイルボビン１１−４の上面から上方へ突出し
たコイル用端子１ｌ−６ａを挿通させる孔１１−９ｇ、
同じくコイルボビン１１−４の上面から突出したコイル
用端子１ｌ−６ｂを挿通させる孔１ｌ−９ｆ、コイルボ
ビン１１−５の上面から突出したコイル用端子１ｌ−７
ａを挿通させる孔１ｌ−９ｉ。A notch 1l into which the locking claw 1l-4b of the coil bobbin 11-4 and the locking claw 1l-5b of the coil bobbin 11-5 enter.
-9c, a hole 11-9g through which the coil terminal 1l-6a protruding upward from the upper surface of the coil bobbin 11-4 is inserted;
Similarly, a hole 1l-9f into which the coil terminal 1l-6b protruding from the upper surface of the coil bobbin 11-4 is inserted, and a coil terminal 1l-7 protruding from the upper surface of the coil bobbin 11-5.
Hole 1l-9i through which a is inserted.
コイルボビン１１−５から突出したコイル用端子１ｌ−
７ｂを挿通させる孔１ｌ−９ｈが形成されている。軸受
板１１−９はヨーク１１−８の端部に嵌着されるように
構成されており、軸受板１１−９がヨーク１１−８に嵌
着された状態ではコイルボビン１１−４及び１１−５の
それぞれの係止爪１ｌ−４ａ及び１ｌ−５ａが軸受板１
１−９の切欠き１ｌ−９ｂ内を通って軸受板１１−９の
上方へ突出し、係止爪１ｌ−４ｂ及び１ｌ−５ｂが切欠
き１ｌ−９ｃを通って軸受板１１−９の上方へ突出する
。Coil terminal 1l- protruding from coil bobbin 11-5
Holes 1l-9h are formed through which 7b is inserted. The bearing plate 11-9 is configured to be fitted to the end of the yoke 11-8, and when the bearing plate 11-9 is fitted to the yoke 11-8, the coil bobbins 11-4 and 11-5 The locking claws 1l-4a and 1l-5a of the bearing plate 1
The locking claws 1l-4b and 1l-5b pass through the notches 1l-9c and project upwards from the bearing plate 11-9. stand out.
ヨーク１１−８の下端面には、地板９のヨーク支持座９
−２の上端面に突設されている突片９−３がはまり込む
切欠き１ｌ−８ａが形成されている。A yoke support seat 9 of the main plate 9 is provided on the lower end surface of the yoke 11-8.
A notch 11-8a is formed in the upper end surface of -2 into which the protruding piece 9-3 is fitted.
軸受板１１−９の外側に配置されるプリント配線板＋１
−１０には、前記係止爪１ｌ−４ａ及び１ｌ−５ａを入
り込ませるための切欠き１ｌ−１０ａ、係止爪１１−４
ｂ及び１１−５ｂを入り込ませるための切欠き１１−１
０ｂ、軸受板１１−９の軸受部１ｌ−９ａが挿入される
孔１ｌ−１０ｃ、コイルボビン１１−４及び１１−５の
ビン１ｌ−４ｃ及び１ｌ−５ｃを挿通させる長孔１１−
１０ｄ、コイルポイン１１−４及び１１−５のビン１ｌ
−４ｄ及び１ｌ−５ｄを挿通させる長孔１ｌ−１０ｅ。Printed wiring board +1 placed outside the bearing plate 11-9
-10 includes a notch 1l-10a into which the locking claws 1l-4a and 1l-5a are inserted, and a locking claw 11-4.
Notch 11-1 for inserting b and 11-5b
0b, a hole 1l-10c into which the bearing portion 1l-9a of the bearing plate 11-9 is inserted, and a long hole 11- into which the pins 1l-4c and 1l-5c of the coil bobbins 11-4 and 11-5 are inserted.
10d, bottle 1l of coil points 11-4 and 11-5
- Elongated hole 1l-10e through which 4d and 1l-5d are inserted.
が形成されている。is formed.
コイルボビン１１−４のコイル用端子１ｌ−６ａ及び１
１−６ｂはプリント配線板１１−１０の孔１ｌ−１Ｏｆ
及び１１−１０ｇに挿入されてプリント配線板１１−１
０にハンダ付けされ、コイルボビン１１−４の２木のコ
イル用端子１ｌ−５ａ及び１ｌ−５ｂはプリント配線板
１１−１０の孔１ｌ−１０ｈ及び１ｌ−１ｏｔに挿入さ
れてハンダ付けされる。Coil terminals 1l-6a and 1 of coil bobbin 11-4
1-6b is hole 1l-1Of of printed wiring board 11-10
and 11-10g and printed wiring board 11-1
0, and the two coil terminals 11-5a and 11-5b of the coil bobbin 11-4 are inserted into the holes 11-10h and 11-1ot of the printed wiring board 11-10 and soldered.
次に、地板９にモータ１１を組付ける作業について説明
する。Next, the work of assembling the motor 11 to the base plate 9 will be explained.
まず、ロータ１１−１を二つのコイルボビン１１−４及
び１１−５のそれぞれの対向面の凹部に位置決めすると
ともに両コイルボビン１１−４及び１１−５を互いに圧
接させるとともに両コイルボビンの外側に仮留めテープ
Ｔを巻いて一体化させ、更に、ヨーク１１−８を下側か
ら嵌着させてロータ・ステータユニットを作る。次に、
このロータ・ステータユニットの中心（すなわち、ロー
タの軸１１−２ ）を地板９のヨーク支持座９−２の中
の軸孔９−６に合わせつつ該ユニットを該支持座９−２
の中へ垂直に押し下げると、軸１１−１の先端が孔９−
６内に挿入されるとともにヨーク１１−８が支持座９−
２の上に乗る。この時、地板９の係止突起９−４及び９
−５がコイルボビン１１−４及び１１−５の下端周縁部
の張り出し部１ｌ−４ｉ及び１ｌ−４Ｊ（第３図参照）
にぶつかるが、該ユニットを強く押し下げると、該係止
突起９−４び９−５がコイルボビン１１−４張り出し部
１ｌ−４ｉ及びＸｔ−４ｊによって外側へ押されて該突
起９−４及び９−５が外側へ弾性的にたわむため、コイ
ルボビンｌｌ−４及び１１−５の下端がヨーク支持座９
−２の内側の地板面まで下降し、コイルボビン１１−４
の下面のビン１１−４ｅ及び１ｌ−４ｆが地板９の穴９
−７及び９−８にそれぞれ挿入され、また、コイルボビ
ン１１−４の張り出し部１ｌ−４ｉ及びｔｉ−４ｊが係
止突起９−４及び９−５の上端の屈曲部よりも下へ移動
するので係止突起９−４及び９−５はそれ自身の弾性復
元力で元の位置に戻り、該突起９−４及び９−５はそれ
ぞれの先端の屈曲部がコイルボビン１１−４の凹部１１
−４ｇ及び１ｌ−４ｈの中に入り、その結果、第３図に
示されるようにコイルボビン１１−４及び１１−５が係
止突起９−４及び９−５によって地板９上に固定される
。First, the rotor 11-1 is positioned in the recesses of the opposing surfaces of the two coil bobbins 11-4 and 11-5, and the coil bobbins 11-4 and 11-5 are brought into pressure contact with each other, and temporary tape is attached to the outside of both coil bobbins. The T is wound and integrated, and the yoke 11-8 is fitted from below to form a rotor-stator unit. next,
While aligning the center of this rotor-stator unit (that is, the rotor axis 11-2) with the shaft hole 9-6 in the yoke support seat 9-2 of the base plate 9, insert the unit into the support seat 9-2.
When pushed down vertically into the hole, the tip of the shaft 11-1 aligns with the hole 9-
6 and the yoke 11-8 is inserted into the support seat 9-
Get on top of 2. At this time, the locking protrusions 9-4 and 9 of the main plate 9
-5 is the protruding portion 1l-4i and 1l-4J of the lower end peripheral edge of the coil bobbins 11-4 and 11-5 (see Figure 3)
However, when the unit is strongly pushed down, the locking protrusions 9-4 and 9-5 are pushed outward by the coil bobbin 11-4 overhangs 1l-4i and Xt-4j, and the protrusions 9-4 and 9- 5 elastically bends outward, the lower ends of the coil bobbins 11-4 and 11-5 are attached to the yoke support seat 9.
-2, descend to the inner main plate surface of coil bobbin 11-4.
The bottles 11-4e and 1l-4f on the bottom of are the holes 9 in the main plate 9.
-7 and 9-8 respectively, and the overhanging portions 1l-4i and ti-4j of the coil bobbin 11-4 move below the bent portions of the upper ends of the locking protrusions 9-4 and 9-5. The locking protrusions 9-4 and 9-5 return to their original positions by their own elastic restoring force, and the bent portions of the protrusions 9-4 and 9-5 at their respective tips meet the recess 11 of the coil bobbin 11-4.
-4g and 11-4h, and as a result, the coil bobbins 11-4 and 11-5 are fixed on the base plate 9 by the locking projections 9-4 and 9-5, as shown in FIG.
以上のようにしてコイルボビン１１−４及び１１−５を
地板９に固定させた後、軸受板１１−９の切欠き１１−
９ｂ及び１ｌ−９ｃにプリント配線板１１−１０の切欠
き１ｌ−１０ａ及び１ｌ−１０ｂを合わせるとともにプ
リント配線板１１−１０と軸受板１１−９とを芯合わせ
しつつ両者を重ね合わせると、軸受板１１−９の軸受部
１ｌ−９ａがプリント配線板１１−１０の孔１ｌ−１０
ｃに嵌まり込むので、軸受板１１−９とプリント配線板
１１−１０とが一体化される。次に、軸受板１１−９と
プリント配線１１−とを一体化させてコイルボビン１１
−４及び１１−５の上に降下させる。この場合、コイル
ボビン１１−４及び１１−５の係止爪１ｌ−４ａ及び１
ｌ−５ａが軸受板１１−９の切欠き１ｌ−９ｂとプリン
ト配線板１１−１０の切欠き１ｌ−１０ａに入り、また
、係止爪１ｌ−４ｂ及び１ｌ−５ｂが軸受板１１−９の
切欠き１ｌ−９ｃとプリント配線板１１−１０の切欠き
１１−１０ｂに入るように軸受板とプリント配線板とを
コイルボビン１１−４及び１１−５に対して位置決めし
つつ降下させなければならない。After fixing the coil bobbins 11-4 and 11-5 to the main plate 9 as described above, the notch 11- of the bearing plate 11-9 is
When the notches 1l-10a and 1l-10b of the printed wiring board 11-10 are aligned with the notches 9b and 1l-9c, and the printed wiring board 11-10 and the bearing plate 11-9 are aligned and overlapped, the bearing The bearing portion 1l-9a of the plate 11-9 is connected to the hole 1l-10 of the printed wiring board 11-10.
Since the bearing plate 11-9 and the printed wiring board 11-10 are fitted into one piece, the bearing plate 11-9 and the printed wiring board 11-10 are integrated. Next, the bearing plate 11-9 and the printed wiring 11- are integrated to form the coil bobbin 11.
-4 and 11-5. In this case, the locking claws 1l-4a and 1 of the coil bobbins 11-4 and 11-5
l-5a fits into the notch 1l-9b of the bearing plate 11-9 and the notch 1l-10a of the printed wiring board 11-10, and the locking claws 1l-4b and 1l-5b fit into the notch 1l-9b of the bearing plate 11-9. The bearing plate and the printed wiring board must be lowered while being positioned relative to the coil bobbins 11-4 and 11-5 so that they fit into the notch 11-9c and the notch 11-10b of the printed wiring board 11-10.
切欠き１ｌ−１０ａ及び切欠き１ｌ−１０ｂのそれぞれ
の内周縁の位置は係止爪１ｌ−４ａ、 １ｌ−４ｂ。The positions of the inner peripheral edges of each of the notches 1l-10a and 1l-10b are locking claws 1l-4a and 1l-4b.
１ｌ−５ａ、 １ｌ−５ｂの先端の位置よりも外側にあ
るように設計されているので、コイルボビン１１−４及
び１１−５の上に軸受板とプリント配線板とを降下させ
ると、係止爪１ｌ−４ａ、 １ｌ−５ａ。1l-5a and 1l-5b, so when the bearing plate and printed wiring board are lowered onto the coil bobbins 11-4 and 11-5, the locking claws 1l-4a, 1l-5a.
１ｌ−４ｂ、 １ｌ−５ｂの各先端に軸受板１１−９の
各切欠キ１ｌ−９ｂ及び１ｌ−９ｃの内周縁がぶつかる
が、軸受板１１−９とプリント配線板１１−１０とに大
きな力を加えて押し下げると係止爪１ｌ−４ａ。The inner peripheral edge of each notch 1l-9b and 1l-9c of bearing plate 11-9 collides with each tip of 1l-4b and 1l-5b, but a large force is applied to bearing plate 11-9 and printed wiring board 11-10. and press down to release the locking claw 1l-4a.
１ｌ−５ａ、 １ｌ−４ｂ、 １ｌ−５ｂは外側へ弾性
的にたわんで、係止爪１ｌ−４ａ、 １ｌ−５ａ、 １
ｌ−４ｂ、 １ｌ−５ｂの各先端が外側へ逃げるので軸
受板１１−９がコイルボビン１１−４及び１１−５の上
に乗り、係止爪１ｌ−４ａ、 １ｌ−５ａ、 １ｌ−４
ｂ、 １ｌ−５ｂはそれ自身の弾性復元力で元の状態に
戻り、各係止爪の先端屈曲部がプリント配線板１１−１
０の上面に係合してプリント配線板１１−１０と軸受板
１１−９とがコイルボビン１１−４及び１１−５の上に
固定される。なお、軸受板１１−９をコイルボビン１１
−４及び１１−５の上に載置した後にプリント配線板１
１−１０を軸受板１１−９の上に組込むようにしてもよ
い。軸受板１１−９をコイルボビン１１−４１び１１−
５の上に組込む時には、コイルボビン１１−４のピン１
ｌ−４ｃ及び１ｌ−４ｄに軸受板１１−９の孔１ｌ−９
ｅ及び１１−９ｄを整列させるようにコイルボビンに対
して軸受板１１−９を位置決めする。1l-5a, 1l-4b, 1l-5b elastically bends outward, and locking claws 1l-4a, 1l-5a, 1
Since the tips of l-4b and 1l-5b escape to the outside, the bearing plate 11-9 rides on the coil bobbins 11-4 and 11-5, and the locking claws 1l-4a, 1l-5a, 1l-4
b, 1l-5b returns to its original state by its own elastic restoring force, and the bent end of each locking claw is attached to the printed wiring board 11-1.
0, the printed wiring board 11-10 and the bearing plate 11-9 are fixed onto the coil bobbins 11-4 and 11-5. Note that the bearing plate 11-9 is attached to the coil bobbin 11.
Printed wiring board 1 after being placed on -4 and 11-5.
1-10 may be installed on the bearing plate 11-9. The bearing plate 11-9 is attached to the coil bobbin 11-41 and 11-
5, pin 1 of coil bobbin 11-4.
Hole 1l-9 of bearing plate 11-9 in l-4c and 1l-4d
The bearing plate 11-9 is positioned relative to the coil bobbin so that the bearing plate 11-9 is aligned with the bearing plate 11-9.
以上のようにしてモータ１１を地板９に組付けた後、モ
ータ１１の軸１１−２に絞り羽根駆動レバー３を取付け
、更に、該レバー３に絞り羽根４及び５を取付ける。After the motor 11 is assembled to the base plate 9 as described above, the aperture blade drive lever 3 is attached to the shaft 11-2 of the motor 11, and the aperture blades 4 and 5 are further attached to the lever 3.
そして、前述のように、カバー１０を地板９に対してス
ライドさせることによって地板９へのカバー１０の取付
けが行われ、これにより本発明の電動絞り装置の組立が
完了する。Then, as described above, the cover 10 is attached to the base plate 9 by sliding the cover 10 relative to the base plate 9, thereby completing the assembly of the electric diaphragm device of the present invention.
以上説明したように、本発明の電動絞り装置では次のよ
うな効果を奏することができる。As explained above, the electric diaphragm device of the present invention can achieve the following effects.
（ａ）カバーを地板９に対して平行にスライドさせるこ
とによってカバーを地仮に固定できるように構成されて
おり、カバーと地板とを複数の締結手段で結合させる結
合構造ではないため、カバーに反りや曲りやよじれ等の
変形が生じる恐れがなく、従って、カバーの曲りや反り
やよじれ等による絞り羽根とカバーとの接触が生じる危
険性がないので、絞り羽根に常に正確な動きをさせるこ
とができる。(a) The cover is configured so that it can be fixed to the ground by sliding it parallel to the base plate 9, and the cover is not connected to the base plate using multiple fastening means, so the cover may warp. Therefore, there is no risk of contact between the aperture blades and the cover due to bending, warping, or twisting of the cover, so the aperture blades can always move accurately. can.
（ｂ）地板と一体成形した長いコイルボビン取付棒にコ
イルボビンを取付ける構造を廃止し、コイルボビンと地
板とを短かいスナップ式の係止手段で結合させる一方、
コイルボビンと軸受板及びプリント配線板とをコイルボ
ビンに設けたスナップ式の係止手段で結合させるように
構成したので、モータの軸線が傾くことがなくなり、そ
の結果、組立歩留りが向上し、また、従来品よりも組立
精度が高くなったためモータの不具合や性能低下などが
生じる恐れがなくなり、コスト低減と動作精度向上が達
成される。(b) Eliminates the structure of attaching the coil bobbin to a long coil bobbin mounting rod that is integrally formed with the main plate, and connects the coil bobbin and the main plate with short snap-type locking means;
Since the coil bobbin, the bearing plate, and the printed wiring board are connected to each other by snap-type locking means provided on the coil bobbin, the axis of the motor does not tilt, and as a result, the assembly yield is improved. Because the assembly accuracy is higher than that of conventional products, there is no risk of motor failure or performance deterioration, reducing costs and improving operating accuracy.
第１図は本発明による改良された電動絞り装置の要部分
解斜視図、第２図（ａ）および（ｂ）は第１図に示した
装置においてカバーと地板との結合構造を説明するため
の部分的平面図および側面図、第３図は第１図に示した
電動絞り装置のモータ部分及び絞り羽根駆動部分の縦断
面図、第４図は第１図の電動絞り装置のモータを端面側
から見た半部露出図、第５図は従来の電動絞り装置の分
解斜視図、である。
１．９・・・地板 ２．１１・・・モータ３・・
・絞り羽根駆動レバー
４．５・・・絞り羽根 Ｔ・・・仮留めテープ９−４
．９−５・・・係止突起
１１−１・・・ロータ
１１−４ 、１１−５・・・コイルボビン１１−６ 、
１１−７・・・コイル
１１−８・・・ヨーク
１ｌ−４ｃ、 １ｌ−４ｄ、 １ｌ−４ｅ、 １ｌ−４
ｆ・・・ビン１ｌ−４ａ、 １ｌ−４ｂ、 １ｌ−５ａ
、 １ｌ−５ｂ・・・係止爪１１−９・・・軸受板
１１−１０・・・プリント配線板
■
Φ１
第
３
図
第
７図
−６FIG. 1 is an exploded perspective view of essential parts of an improved electric throttle device according to the present invention, and FIGS. 2(a) and (b) are for explaining the coupling structure between the cover and the main plate in the device shown in FIG. 3 is a longitudinal sectional view of the motor section and the aperture blade drive section of the electric diaphragm device shown in FIG. 1, and FIG. 4 is an end view of the motor of the electric diaphragm device shown in FIG. FIG. 5 is a half-exposed view seen from the side, and is an exploded perspective view of a conventional electric diaphragm device. 1.9...Main plate 2.11...Motor 3...
・Aperture blade drive lever 4.5...Aperture blade T...Temporary fastening tape 9-4
．． 9-5... Locking protrusion 11-1... Rotor 11-4, 11-5... Coil bobbin 11-6,
11-7... Coil 11-8... Yoke 1l-4c, 1l-4d, 1l-4e, 1l-4
f...Bin 1l-4a, 1l-4b, 1l-5a
, 1l-5b...Latching claw 11-9...Bearing plate 11-10...Printed wiring board ■Φ1 Fig. 3 Fig. 7-6
Claims (1)
、該地板の面と平行に配置されて該モータにより該地板
の面と平行に動かされる絞り羽根、該地板に取付けられ
て該絞り羽根を保護するカバー、を有して成る電動絞り
装置において、 該カバーを該地板に対して平行に且つ特定の一方向に移
動させる動きに応じて該カバーを該地板に係止せしめる
カバー係止手段を有しており、該カバー係止手段は少く
とも該地板の側縁と該カバーの側縁とに形成されている
ことを特徴とする電動絞り装置。 ２ 光路孔を有する地板、該地板に取付けられるモータ
、該地板の面と平行に配置されて該モータにより該地板
の面と平行に動かされる絞り羽根、該地板に取付けられ
て該絞り羽根を保護するカバー、を有して成る電動絞り
装置において、 該カバーが該地板に対して平行に且つ特定の一方向に動
かされる動きに応じて該カバーを該地板に係止させるカ
バー係止手段と、該モータのコイルボビンが該地板の面
に向って動かされる動きに応じて該コイルボビンを該地
板ににスナップ係止させるコイルボビン係止手段と、該
モータの軸受板等を該コイルボビンの一端面にスナップ
係止する軸受板等係止手段と、を有していることを特徴
とする電動絞り装置。[Claims] 1. A base plate having an optical path hole, a motor attached to the base plate, an aperture blade arranged parallel to the plane of the base plate and moved parallel to the plane of the base plate by the motor, and attached to the base plate. an electric diaphragm device comprising: a cover that protects the aperture blades when the cover is moved parallel to the base plate in a specific direction; What is claimed is: 1. An electric diaphragm device comprising: a cover locking means for holding the base plate, the cover locking means being formed on at least a side edge of the base plate and a side edge of the cover. 2. A main plate having an optical path hole, a motor attached to the main plate, an aperture blade arranged parallel to the surface of the main plate and moved parallel to the surface of the main plate by the motor, and an aperture blade attached to the main plate to protect the aperture blade. a cover locking means for locking the cover to the base plate in response to movement of the cover in parallel with the base plate and in one specific direction; a coil bobbin locking means for snap-locking the coil bobbin to the base plate in response to movement of the coil bobbin of the motor toward the surface of the base plate; and a coil bobbin locking means for snap-locking the coil bobbin to the base plate in response to movement of the coil bobbin of the motor toward the surface of the base plate; An electric diaphragm device characterized by having a locking means such as a bearing plate for locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1341250A JP2550192B2 (en) | 1989-12-28 | 1989-12-28 | Aperture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1341250A JP2550192B2 (en) | 1989-12-28 | 1989-12-28 | Aperture device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03200235A true JPH03200235A (en) | 1991-09-02 |
| JP2550192B2 JP2550192B2 (en) | 1996-11-06 |
Family
ID=18344575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1341250A Expired - Lifetime JP2550192B2 (en) | 1989-12-28 | 1989-12-28 | Aperture device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2550192B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0564835U (en) * | 1992-02-06 | 1993-08-27 | 日本精密測器株式会社 | Electric diaphragm device |
| JP2016182011A (en) * | 2015-03-24 | 2016-10-13 | 日本電産コパル株式会社 | Electromagnetic actuator, blade driving device, and camera |
| JP2020102901A (en) * | 2018-12-20 | 2020-07-02 | 日本電産サンキョー株式会社 | Actuator |
| CN112187005A (en) * | 2018-03-30 | 2021-01-05 | 日本电产三协株式会社 | Actuator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62197135U (en) * | 1986-06-04 | 1987-12-15 | ||
| JPH0175225U (en) * | 1987-11-10 | 1989-05-22 | ||
| JPH0361935A (en) * | 1989-07-29 | 1991-03-18 | Nisca Corp | Opening/closing blade driving device and production thereof |
-
1989
- 1989-12-28 JP JP1341250A patent/JP2550192B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62197135U (en) * | 1986-06-04 | 1987-12-15 | ||
| JPH0175225U (en) * | 1987-11-10 | 1989-05-22 | ||
| JPH0361935A (en) * | 1989-07-29 | 1991-03-18 | Nisca Corp | Opening/closing blade driving device and production thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0564835U (en) * | 1992-02-06 | 1993-08-27 | 日本精密測器株式会社 | Electric diaphragm device |
| JP2016182011A (en) * | 2015-03-24 | 2016-10-13 | 日本電産コパル株式会社 | Electromagnetic actuator, blade driving device, and camera |
| CN112187005A (en) * | 2018-03-30 | 2021-01-05 | 日本电产三协株式会社 | Actuator |
| CN112187005B (en) * | 2018-03-30 | 2023-07-04 | 日本电产三协株式会社 | Actuator with a spring |
| JP2020102901A (en) * | 2018-12-20 | 2020-07-02 | 日本電産サンキョー株式会社 | Actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2550192B2 (en) | 1996-11-06 |
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