JPH05196990A - Light quantity controller - Google Patents

Abstract

PURPOSE:To easily couple a meter part and a diaphragm part by integrally forming a driving part and a diaphragm part, composed of a galvanometer, etc., and a hook-like projecting part and a dent part for providing the hook part, for instance. CONSTITUTION:A substrate 1 composed of a plastic, etc., as the external part of a potentiometer comprising a driving part, and key-like hook pawls 1d-1g extended in an axial direction at outer peripheral positions, are integrally formed, and respective hook pawls 1a-1g have proper elasticity. A driving pin 2a is provided on a lever 2 transmitting the driving force of the potentiometer to a diaphragm blade. On a base plate 4 serving as the substrate of a diaphragm device, hook engaging step parts 4a-4g are formed in accordance with the hook pawls 1a-1g of the substrate 1, and held against the hook pawls 1d-1g, respectively, and they are pushed and engaged, to integrate the base plate 4 and the substrate 1.

Description

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

【０００１】[0001]

【産業上の利用分野】本発明はビデオカメラやスティル
カメラ等の光学機器における光量制御装置に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light quantity control device in optical equipment such as video cameras and still cameras.

【０００２】[0002]

【従来の技術】従来、ビデオカメラ等の絞り装置におい
て、駆動源であるところのガルバノメータ部と絞り装置
の光透過調整部であるところの絞り機構部とを分離可能
な形式としたものが知られており、ガルバノメータ部と
絞り機構部を一体化する為にビス等の連結部品を使用し
接合していた。2. Description of the Related Art Conventionally, in a diaphragm device such as a video camera, a type in which a galvanometer part which is a drive source and a diaphragm mechanism part which is a light transmission adjusting part of the diaphragm device are separable is known. In order to integrate the galvanometer part and the diaphragm mechanism part, connecting parts such as screws were used for joining.

【０００３】図３は従来の絞り装置の分解斜視図を示し
ている。図において、２１は駆動部であるポテンシオメ
ータで、駆動レバー２２がバネ２３により一方向に付勢
されている。２４は絞り装置の基板となる地板で、ビス
２９によりポテンシオメータ２１に螺着されている。２
０は羽根駆動部材、２５〜２７は羽根、２８はカバー板
である。FIG. 3 shows an exploded perspective view of a conventional diaphragm device. In the figure, reference numeral 21 is a potentiometer which is a drive unit, and a drive lever 22 is biased in one direction by a spring 23. Reference numeral 24 is a base plate which serves as a substrate of the diaphragm device, and is screwed to the potentiometer 21 with screws 29. Two
Reference numeral 0 is a blade driving member, 25 to 27 are blades, and 28 is a cover plate.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら上記従来
例ではガルバノメータ部を絞り機構部に接合する際に連
結部品（ビス等）が必要で、さらに組立の際にガルバノ
メータ部を絞り機構部の定位置に保持し、ビスをとり、
工具等を使用しながら作業を行なわなければならず、以
下のような欠点があった。However, in the above-mentioned conventional example, a connecting component (such as a screw) is required when the galvanometer portion is joined to the diaphragm mechanism portion, and the galvanometer portion is fixed at a fixed position of the diaphragm mechanism portion during assembly. Hold, take the screw,
The work had to be performed while using a tool, and there were the following drawbacks.

【０００５】（１）部品の増大を招く。(1) The number of parts is increased.

【０００６】（２）作業場所が限定（工具を備えている
場所）される。(2) The working place is limited (where the tool is provided).

【０００７】（３）作業工数の増大を招く。(3) The number of working steps is increased.

【０００８】（４）ビス締め不良、ビスのゆるみ等の問
題が発生する。(4) Problems such as screw tightening failure and screw loosening occur.

【０００９】[0009]

【課題を解決するための手段及び作用】本発明によれ
ば、ガルバノメータ部の基台と絞り機構部の基板に、鍵
状の構造物を形成し、かみ合う様に設定する事により、
ガルバノメータ部と絞り機構部を嵌合係合方式で結合で
きる様にしたものである。According to the present invention, by forming a key-like structure on the base of the galvanometer unit and the substrate of the diaphragm mechanism unit and setting them so as to engage with each other,
The galvanometer section and the diaphragm mechanism section can be connected by a fitting engagement method.

【００１０】[0010]

【実施例】図１は、本発明による光量制御装置の一実施
例を示す分解斜視図である。1 is an exploded perspective view showing an embodiment of a light quantity control device according to the present invention.

【００１１】１は駆動部をなすポテンシオメータの外装
部であるプラスチック等からなる基台で、外周位置に軸
方向に延出された鍵状のフック爪１ｄ〜１ｇが一体的に
形成され、これらフック爪１ｄ〜１ｇは適度な弾性力を
有している。２はポテンシオメータ駆動力を後記する絞
り羽根に伝達するレバーで、駆動ピン２ａが設けられて
いる。３はレバー２を羽根閉方向に戻すバネである。Reference numeral 1 denotes a base made of plastic or the like which is an exterior part of a potentiometer forming a driving part, and key-like hook claws 1d to 1g extending in the axial direction are integrally formed at an outer peripheral position thereof. The hook claws 1d to 1g have an appropriate elastic force. A lever 2 transmits a potentiometer driving force to a diaphragm blade, which will be described later, and is provided with a drive pin 2a. Reference numeral 3 is a spring that returns the lever 2 in the blade closing direction.

【００１２】４は絞り装置の基板となる地板で、基台１
のフック爪１ｄ〜１ｇに対応してフックかみ合い段差部
４ｄ〜４ｇが形成され、これらフック爪１ｄ〜１ｇをフ
ックかみ合い段差部４ｄ〜４ｇに当てがって押し込むこ
とにより係合し、地板４と基台１とが一体化される。A base plate 4 serves as a substrate of the diaphragm device, and a base 1
Corresponding to the hook claws 1d to 1g, the hook engaging step portions 4d to 4g are formed, and the hook claws 1d to 1g are engaged by being pressed against the hook engaging step portions 4d to 4g to be engaged with the main plate 4. The base 1 is integrated.

【００１３】地板４には、羽根５の軸孔５ｂが軸支され
る支軸４ａが突設され、また羽根６の支軸６ａ、羽根７
の支軸７ａが夫々軸支される軸孔４ｂ，４ｃが形成され
ている。羽根５には羽根６のガイドピン６ｂが嵌合する
ガイド孔５ｃが形成され、また羽根６のガイド孔６ｃに
は羽根７のガイドピン７ｂが嵌合し、羽根５の駆動孔５
ａにポテンシオメータの駆動ピン２ａが嵌合する。The main plate 4 is provided with a support shaft 4a for supporting the shaft hole 5b of the blade 5, and the support shaft 6a of the blade 6 and the blade 7 are provided.
Shaft holes 4b and 4c are formed in which the support shafts 7a are respectively supported. The blade 5 is formed with a guide hole 5c into which the guide pin 6b of the blade 6 is fitted, and the guide pin 6b of the blade 7 is fitted into the guide hole 6c of the blade 6 and the drive hole 5 of the blade 5 is formed.
The drive pin 2a of the potentiometer is fitted to a.

【００１４】８はカバー板で、地板４上の羽根５，６，
７を覆う。Reference numeral 8 is a cover plate, which has blades 5, 6 on the base plate 4.
Cover 7.

【００１５】図２は、フック爪を示しており、図２の
（ａ）に示すフック爪は図１に示すフック爪の詳細を示
したもので、基台１から延びているフック爪の爪部は内
側を向いて形成されている。FIG. 2 shows a hook claw, and the hook claw shown in FIG. 2 (a) shows the details of the hook claw shown in FIG. 1, and the claw of the hook claw extending from the base 1 is shown. The part is formed facing inward.

【００１６】なお、図２の（ｂ）に示すように、基台１
１のフック爪の爪部を外側に向け、これに合わせて地板
１０の段差部を形成しても同様の効果が得られる。As shown in FIG. 2 (b), the base 1
The same effect can be obtained by directing the hook portion of the hook hook No. 1 toward the outside and forming the step portion of the base plate 10 in accordance with this.

【００１７】一方、図２の（ｃ）（ｄ）のように、地板
１２，１４側にフック爪を設け、基台１３，１５にこれ
らフック爪に係合する段差部を設けても同様の効果が得
られ、図２の（ｃ）では爪部を内側に、図２の（ｄ）で
は爪部を外側に向けている。On the other hand, as shown in FIGS. 2 (c) and 2 (d), the hook claws may be provided on the base plates 12 and 14 and the bases 13 and 15 may be provided with step portions that engage with the hook claws. The effect is obtained, and the claw portion is directed inward in FIG. 2 (c), and the claw portion is directed outward in FIG. 2 (d).

【００１８】[0018]

【発明の効果】以上説明したように、ガルバノメータ等
からなる駆動部と絞り部とをフック状の突出部とそのフ
ック部を受ける為の例えばへこみ部を一体成形すること
により、メーター部と絞り部を別々に組み立てた後に連
結部品を追加することなくメーター部と絞り部を結合さ
せることができる。As described above, the meter portion and the throttle portion are integrally formed by integrally forming the driving portion including the galvanometer and the throttle portion with the hook-shaped protrusion and the recess for receiving the hook portion. It is possible to combine the meter part and the throttle part without adding a connecting part after assembling the parts separately.

【００１９】また、ビス等の連結部品を削減し、ビス締
め用等の工具を必要とせず、メーター部と絞り部を簡単
に結合することができ、組立作業工数の削減や、ビス締
め不良、ビスゆるみ等の弊害をも除去することができ、
高品質、高信頼性のある製品を提供することができる。Further, the number of connecting parts such as screws is reduced, the tool for screw tightening is not required, and the meter part and the throttle part can be easily connected, reducing the number of assembling steps and screw tightening failure. It is possible to remove the adverse effects such as screw loosening,
We can provide high quality and high reliability products.

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

【図１】本発明による光量制御装置の一実施例を示す分
解斜視図。FIG. 1 is an exploded perspective view showing an embodiment of a light quantity control device according to the present invention.

【図２】ポテンシオメータと絞り装置の組付け部の断面
図。FIG. 2 is a sectional view of an assembly portion of a potentiometer and a diaphragm device.

【図３】従来の光量制御装置の分解斜視図。FIG. 3 is an exploded perspective view of a conventional light amount control device.

【符号の説明】[Explanation of symbols]

１，１１，１３，１５…ポテンシオメータの基台 １ｄ〜１ｇ…フック爪 ２…レバー ３…バネ ４，１０，１２，１４…地板 ５，６，７…絞
り羽根 ８…カバー板1, 11, 13, 15 ... Potentiometer base 1d-1g ... Hook claw 2 ... Lever 3 ... Spring 4, 10, 12, 14 ... Base plate 5, 6, 7 ... Aperture blade 8 ... Cover plate

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 駆動部と絞り機構部とを一体的に組付け
てユニット化した光量制御装置において、該駆動部と該
絞り機構部との組付け部は、嵌合係合する鍵状の突出部
とそれに対応して係合する係合部により構成したことを
特徴とする光量制御装置。1. A light quantity control device in which a drive unit and an aperture mechanism unit are integrally assembled to form a unit, and the assembly unit of the drive unit and the aperture mechanism unit is a key-like member that is engaged and engaged. A light quantity control device comprising a protrusion and an engaging portion that engages correspondingly.