JP5328393B2 - Electronics - Google Patents

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JP5328393B2
JP5328393B2 JP2009020231A JP2009020231A JP5328393B2 JP 5328393 B2 JP5328393 B2 JP 5328393B2 JP 2009020231 A JP2009020231 A JP 2009020231A JP 2009020231 A JP2009020231 A JP 2009020231A JP 5328393 B2 JP5328393 B2 JP 5328393B2
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coil spring
torsion coil
neutral position
zoom lever
zoom
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JP2010177118A (en
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照明 池澤
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Canon Inc
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Canon Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To realize a structure for changing the returning force to a neutral position, according to the operating volume of an operation member, using less space. <P>SOLUTION: When the operation member is operated toward a first direction from a first neutral position, and when the operation member is operated toward a second direction from a second neutral position, a first biasing member and a second biasing member are arranged at a retaining member, respectively, so that a displacement direction of the first biasing member and a displacement direction of the second biasing member are to be in the same direction, and at the same time, so that a part of a displacement orbit of the first biasing member, when the operation member is operated in the first direction, is overlapped with a part of a displacement orbit of the second biasing member, when the operation member is operated in the second direction. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は電子機器に関し、特に操作量によって必要な操作力の変化する操作部材を備えた電子機器に関するものである。   The present invention relates to an electronic device, and more particularly to an electronic device provided with an operation member whose required operating force changes depending on the operation amount.

近年、デジタルカメラの設計ならびに製造技術に関する技術が発展し、小型化・高性能化が進んできている。高性能化の一つの要素としてズームの高倍率化がある。ズームを高倍率化する事により、様々な画角での撮影をすることが可能になった。ズームの高倍率化に伴い広角端から望遠端までの移動量は増大している。ズーム速度を高速化する事で広角端から望遠端までの移動時間の短縮を図る事が可能であるが、ズーム速度が高速にする事の弊害として、ユーザーが所望の画角でズーム動作を停止することが困難になる。   In recent years, technologies relating to design and manufacturing techniques of digital cameras have been developed, and miniaturization and high performance have been advanced. One factor in achieving higher performance is higher zoom magnification. By increasing the zoom ratio, it has become possible to shoot at various angles of view. The amount of movement from the wide-angle end to the telephoto end is increasing with the higher zoom magnification. It is possible to shorten the movement time from the wide-angle end to the telephoto end by increasing the zoom speed, but as a harmful effect of increasing the zoom speed, the user stops the zoom operation at the desired angle of view. It becomes difficult to do.

この問題を解決するために公知のものとして、複数段のズーム速度をもつデジタルカメラがある。複数段のズーム速度を有する事で撮影者は所望の画角を決定する際に、まず大まかな画角の決定を高速ズーム側で行う。その後、画角の微調整を低速ズーム側で行う。こうすることで、ズーム速度が一定の値しか持たないデジタルカメラよりも、より素早く所望の画角にあわせる事が可能となる。   As a known technique for solving this problem, there is a digital camera having a plurality of zoom speeds. By having a plurality of zoom speeds, the photographer first determines a rough angle of view on the high-speed zoom side when determining a desired angle of view. Thereafter, fine adjustment of the angle of view is performed on the low speed zoom side. In this way, it is possible to adjust to the desired angle of view more quickly than a digital camera having a constant zoom speed.

複数段のズーム速度を持つデジタルカメラは、ズームレバーを回動させるのに必要な力量がほぼ線形の変化を行い、ズーム速度を変化させるタイプのものがある。また、複数段のズーム速度を持つデジタルカメラは、ズームレバーを回動させるのに必要な力量がズームレバーの回動途中で少なくと一点にて非線形で変化し、ズーム速度を変化させるタイプのものもある。前者は構造が公知であるズーム速度一定のデジタルカメラと同じ構成を取る事が可能なため、簡単な構造とする事が可能であるが、撮影者はズーム速度の切り替えポイントを掴む事が難しく、ズーム中に意図せずにズーム速度が変更してしまう事がある。後者はズーム速度が変化するポイントに合わせてズームレバーを回動させるために必要な力量を変化させる付勢部材を設ける。構造は前者よりも複雑になるが、撮影者はズーム速度の切り替えポイントをズームレバー回動時の力量から掴むことが可能となり、細かなズーム速度の調整が可能となる。   Some digital cameras having a plurality of zoom speeds change the zoom speed by changing the force required to rotate the zoom lever in a substantially linear manner. Digital cameras with multiple zoom speeds are of a type that changes the zoom speed by changing the amount of force necessary to rotate the zoom lever at least one point during the rotation of the zoom lever. There is also. Since the former can take the same configuration as a digital camera with a constant zoom speed whose structure is known, it is possible to make the structure simple, but it is difficult for the photographer to grasp the switching point of the zoom speed, The zoom speed may change unintentionally during zooming. The latter is provided with a biasing member that changes the amount of force necessary to rotate the zoom lever in accordance with the point at which the zoom speed changes. Although the structure is more complicated than the former, the photographer can grasp the zoom speed switching point from the amount of power when the zoom lever is rotated, and can finely adjust the zoom speed.

力量の変化を伴う複数段のズーム速度を持つデジタルカメラの機構として、特許文献1が提案されている。この文献では、撮影を行う際に押下するレリーズボタンをズームレバーの回転中心に配置し、その裏面に無負荷時には中央部に復帰するような付勢部材を備えたレバー式の電気スイッチが配置されている。同じく、レリーズボタンの裏面にズームレバーが一定角度回動された後のズーム速度が変化するポイントに合わせるように、第2のねじりコイルばねが配置されているため、一定角度回動後は二つの付勢部材に抗する力で回動させる必要がある。
特開2006−304002号公報
Patent Document 1 has been proposed as a mechanism of a digital camera having a plurality of zoom speeds accompanied by changes in power. In this document, a lever-type electric switch having a urging member that is arranged at the center of rotation of the zoom lever and that returns to the center when no load is placed on the rear surface of the zoom lever is arranged at the center of rotation of the zoom lever. ing. Similarly, the second torsion coil spring is arranged on the back of the release button so that the zoom speed changes after the zoom lever is rotated by a certain angle. It is necessary to rotate with a force against the urging member.
JP 2006-304002 A

しかしながら、前記特許文献に開示された従来技術では、スイッチ内部に配置されたねじりコイルばねによりズームレバーを中立位置へ復帰するように連続的な負荷を与えている。さらに、ズームレバーが所定の移動量を越えたときは、スイッチの外側に設けた板バネにより中立位置への負荷を非連続的に増加させている。そのため、ズームレバーの内側に大きなスペースを確保しなければならず、機器の小型化に影響を与えていた。   However, in the prior art disclosed in the patent document, a continuous load is applied so that the zoom lever is returned to the neutral position by a torsion coil spring disposed inside the switch. Further, when the zoom lever exceeds a predetermined amount of movement, the load on the neutral position is discontinuously increased by a leaf spring provided outside the switch. For this reason, a large space has to be secured inside the zoom lever, which affects the miniaturization of the device.

本発明は、操作部材の操作量に応じて中立位置に戻る力が変化する構成を少ないスペースで実現することを目的としている。   An object of this invention is to implement | achieve the structure in which the force which returns to a neutral position changes according to the operation amount of an operation member in a small space.

上記目的を達成するために、本発明の電子機器は、中立位置から第1の方向に第1の端位置まで操作可能であるとともに、前記中立位置から前記第1の方向とは反対の第2の方向に第2の端位置まで操作可能な操作部材と、2本の腕部を有し、前記操作部材が前記中立位置から前記第1の方向に前記第1の端位置まで操作されるときまたは前記操作部材が前記中立位置から前記第2の方向に前記第2の端位置まで操作されるときに、前記操作部材に対して前記中立位置方向に付勢する第1のねじりコイルばねと、2本の腕部を有し、前記操作部材が前記中立位置と前記第1の端位置との間に設定される第1の中間位置から前記第1の方向に前記第1の端位置まで操作されるときまたは前記操作部材が前記中立位置と前記第2の端位置との間に設定される第2の中間位置から前記第2の方向に前記第2の端位置まで操作されるときに、前記操作部材に対して前記中立位置方向に付勢する第2のねじりコイルばねと、前記操作部材、前記第1のねじりコイルばねおよび前記第2のねじりコイルばねを保持する保持部材と備え、前記操作部材が前記第1の中間位置よりも前記第1の方向に操作されるときには、前記第1のねじりコイルばねの一方の腕部の変位方向と前記第2のねじりコイルばねの一方の腕部の変位方向とが同一方向となり、前記操作部材が前記第2の中間位置よりも前記第2の方向に操作されるときに、前記第1のねじりコイルばね他方の腕部の変位方向と前記第2のねじりコイルばね他方の腕部の変位方向とが同一方向とな、前記操作部材を前記第1の方向に操作したときの前記第1のねじりコイルばね前記一方の腕部の変位軌跡の一部が、前記操作部材を前記第2の方向に操作したときの前記第2のねじりコイルばねの前記他方の腕部の変位軌跡の一部と重なるように、前記保持部材は前記第1のねじりコイルばねおよび前記第2のねじりコイルばね保持することを特徴とする。 In order to achieve the above object, an electronic device according to the present invention can be operated from a neutral position to a first end position in a first direction, and from the neutral position to a second direction opposite to the first direction. An operation member operable to the second end position in the direction and two arm portions, and the operation member is operated from the neutral position to the first end position in the first direction Alternatively, when the operation member is operated from the neutral position to the second end position in the second direction, a first torsion coil spring that biases the operation member in the neutral position direction; Two arm portions are provided, and the operation member is operated from a first intermediate position set between the neutral position and the first end position to the first end position in the first direction. Or when the operating member is between the neutral position and the second end position. When it is operated from the second intermediate position to be set to said second end position in the second direction, and a second torsion coil spring for biasing the neutral position direction with respect to the operating member, is operated in the first direction than the operating member, wherein the first torsion coil spring and the holding member for holding the second torsion coil spring, provided with an intermediate position wherein the operating member is the first , said first torsion and displacement direction of the one arm of the coil spring and the displacement direction of the one arm of the second torsion coil spring is in the same direction, the operating member and the second intermediate time when operated in the second direction than the position has a displacement direction of the other arm of said first other displacement direction of the arm portion of the torsion coil spring second torsion coil springs are the same direction Do Ri, who said operating member of said first A part of the displacement trajectory of the one arm portion of the first torsion coil spring when operated in the direction is a part of the second torsion coil spring when the operation member is operated in the second direction. so as to overlap with part of the displacement trajectory of the other arm, the holding member is characterized by holding the first torsion coil spring and the second torsion coil spring.

操作部材の操作量に応じて中立位置に戻る力が変化する構成を少ないスペースで実現することが可能になる。   A configuration in which the force for returning to the neutral position changes according to the operation amount of the operation member can be realized in a small space.

以下に、本発明の好ましい実施の形態を、添付の図面に基づいて詳細に説明する。   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

本発明の一実施形態である電子機器の特徴を最もよく表す例として、実施の形態を図1から図9を用いて示す。   As an example that best represents the characteristics of an electronic apparatus according to an embodiment of the present invention, the embodiment will be described with reference to FIGS.

図1は本発明の実施形態のデジタルカメラ1を後述する図2で示す断面Aにて切断したズームレバー機構周辺の断面図である。撮影者によって操作可能なズームレバー3はベース2の表面側からベース2に回転自在に取り付けられ、プレート4はベース2の裏面側からベース2回転自在に取り付けられる。そして、ズームレバー3とプレート4はビス止めによって一体される。すなわち、ズームレバー3とプレート4によってベース2を挟み込む構造となっている。ここで、ズームレバー3とプレート4とが一体化されたものが本発明の操作部材として機能し、ベース2が保持部材として機能する。   FIG. 1 is a cross-sectional view of a periphery of a zoom lever mechanism in which a digital camera 1 according to an embodiment of the present invention is cut along a cross-section A shown in FIG. The zoom lever 3 that can be operated by a photographer is rotatably attached to the base 2 from the front surface side of the base 2, and the plate 4 is attached to the base 2 so as to be rotatable from the back surface side of the base 2. The zoom lever 3 and the plate 4 are integrated by screwing. That is, the base 2 is sandwiched between the zoom lever 3 and the plate 4. Here, the one in which the zoom lever 3 and the plate 4 are integrated functions as an operation member of the present invention, and the base 2 functions as a holding member.

プレート4には、切り曲げ部4a(第1の当接部)と切り曲げ部4b(第2の当接部)とが形成され、ブラシ5が取り付けられている。ベース2には、立ち壁部2aと立ち壁部2bとが形成されている。第1の付勢部材である第1のねじりコイルばね6は、ばねのコイル部が巻き閉まり方向に対してあらかじめチャージされた状態でベース2に取り付けられている。   The plate 4 is formed with a cut and bent portion 4a (first contact portion) and a cut and bent portion 4b (second contact portion), and a brush 5 is attached thereto. The base 2 is formed with a standing wall 2a and a standing wall 2b. The first torsion coil spring 6 that is the first urging member is attached to the base 2 in a state where the coil portion of the spring is charged in advance in the winding and closing direction.

ズームレバー3が中立位置にあるとき、第1のねじりコイルばね6の付勢力は第1のねじりコイルばね6の腕部がそれぞれ立ち壁部2aを押すように作用している。第2の付勢部材である第2のねじりコイルばね7は、ばねのコイル部が巻き閉まり方向に対してあらかじめチャージされた状態でベース2に取り付けられている。ズームレバー3が中立位置にあるとき、第2のねじりコイルばね7の付勢力は第2のねじりコイルばね7の腕部がそれぞれ立ち壁部2bを押すように作用している。   When the zoom lever 3 is in the neutral position, the urging force of the first torsion coil spring 6 acts so that the arm portion of the first torsion coil spring 6 presses the standing wall portion 2a. The second torsion coil spring 7 as the second urging member is attached to the base 2 in a state in which the coil portion of the spring is charged in advance in the winding and closing direction. When the zoom lever 3 is in the neutral position, the urging force of the second torsion coil spring 7 acts so that the arms of the second torsion coil spring 7 push the standing wall 2b.

本実施例では付勢部材としてねじりコイルばねを用いたが、これに限定されるものではない。例えば、付勢部材としてゴムなどを用いた場合、周辺温度環境によってゴムの硬度が変化するために、ズームレバーの回動に必要な力量が変化する可能性がある。   In this embodiment, the torsion coil spring is used as the biasing member, but the present invention is not limited to this. For example, when rubber or the like is used as the urging member, the strength of the rubber changes depending on the ambient temperature environment, so that the amount of force required to rotate the zoom lever may change.

図2はデジタルカメラ1を前面側から見た斜視図である。前面部には複数の移動速度にて撮影画角を調節する事が可能なズームレンズ鏡筒8、上面部にはベース2に対して回転自在に取り付けられたズームレバー3がある。   FIG. 2 is a perspective view of the digital camera 1 viewed from the front side. There is a zoom lens barrel 8 capable of adjusting a shooting angle of view at a plurality of moving speeds on the front surface portion, and a zoom lever 3 attached to the upper surface portion so as to be rotatable with respect to the base 2.

図3は図2におけるデジタルカメラ1のズームレバーの回動中心を通る断面Bで切断した断面図である。ブラシ5の先端部5aは基板9上に設けられた接点部と接触している。ズームレバー3の回動によりブラシ5も回転運動を行い、ブラシの先端部5aは基板9上の様々な接点部と接触ならびに非接触の状態となる。不図示の撮影画角速度変更を制御する手段が基盤6とブラシ5の接触状況を読み取ることによって、ズームレンズ鏡筒8の画角変更速度を調整している。   3 is a cross-sectional view taken along a cross-section B passing through the rotation center of the zoom lever of the digital camera 1 in FIG. The tip portion 5 a of the brush 5 is in contact with a contact portion provided on the substrate 9. As the zoom lever 3 rotates, the brush 5 also rotates, and the tip portion 5a of the brush comes into contact with and non-contact with various contact portions on the substrate 9. A means for controlling a change in the shooting angle of view (not shown) reads the contact state between the base 6 and the brush 5 to adjust the change in the angle of view of the zoom lens barrel 8.

図4は図2で示す断面Aにて切断した断面図である。図4は撮影者が画角をより望遠にするためにズームレバー3を第1の方向に回動し、第1のねじりコイルばね6からのみズームレバー3およびプレート4を中立位置方向へ戻そうとする付勢力を受けている状態を示している。ズームレバー3の回動に伴い、プレート4も回動され、第1のねじりコイルばね6の2本の腕部はベース2の立ち壁部2aと切り曲げ部4aによって広げられる。このとき、第1のねじりコイルばね6はズームレバー3およびプレート4が中立位置にあるときよりもチャージされるので、ズームレバー3およびプレート4を中立位置方向へ戻そうとする。一方、第2のねじりコイルばね7の2本の腕部は、ズームレバー3およびプレート4が中立位置にあるときと同様に、ベース2の立ち壁部2bにかかっている。したがって、第2のねじりコイルばね7の付勢力はズームレバー3およびプレート4に与えられていない。   4 is a cross-sectional view taken along a cross-section A shown in FIG. FIG. 4 shows that the photographer rotates the zoom lever 3 in the first direction in order to make the angle of view more telephoto, and only returns the zoom lever 3 and the plate 4 from the first torsion coil spring 6 toward the neutral position. The state which is receiving the urging force to be shown. As the zoom lever 3 is rotated, the plate 4 is also rotated, and the two arms of the first torsion coil spring 6 are widened by the standing wall 2a and the bent portion 4a of the base 2. At this time, since the first torsion coil spring 6 is charged more than when the zoom lever 3 and the plate 4 are in the neutral position, the first torsion coil spring 6 tries to return the zoom lever 3 and the plate 4 toward the neutral position. On the other hand, the two arms of the second torsion coil spring 7 rest on the standing wall 2b of the base 2 in the same manner as when the zoom lever 3 and the plate 4 are in the neutral position. Accordingly, the biasing force of the second torsion coil spring 7 is not applied to the zoom lever 3 and the plate 4.

図5は図2で示す断面Aにて切断した断面図である。図5は図4の状態よりも更にズームレバー3およびプレート4を望遠側へ回動し、ズームレバー3およびプレート4が第1の端位置である望遠端位置にある状態を示している。この状態では、第1のねじりコイルばね6の2本の腕部はベース2の立ち壁部2aと切り曲げ部4aによって広げられ、第2のねじりコイルばね7の2本の腕部はベース2の立ち壁部2bと切り曲げ部4bによって広げられている。このとき、第1のねじりコイルばね6は図4の状態よりもさらにチャージされるとともに、第2のねじりコイルばね7もズームレバー3およびプレート4が中立位置にあるときよりもチャージされることになる。すなわち、第1のねじりコイルばね6に加え第2のねじりコイルばね7からもズームレバー3およびプレート4を中立位置方向へ戻そうとする付勢力を受けている。したがって、この状態では第1のねじりコイルばね6の付勢力と第2のねじりコイルばね7の付勢力によってズームレバー3およびプレート4を中立位置へ戻そうとする。なお、第2のねじりコイルばね7の腕部が切り曲げ部4bに当接して第2のねじりコイルばね7をチャージし始める位置が本発明の第1の中間位置である。すなわち、第1の中間位置は中立位置と第1の端位置である望遠端との間に設定されている。   5 is a cross-sectional view taken along a cross-section A shown in FIG. FIG. 5 shows a state where the zoom lever 3 and the plate 4 are further rotated to the telephoto side than the state of FIG. 4 and the zoom lever 3 and the plate 4 are at the telephoto end position which is the first end position. In this state, the two arm portions of the first torsion coil spring 6 are spread by the standing wall portion 2a and the cut and bent portion 4a of the base 2, and the two arm portions of the second torsion coil spring 7 are the base 2 It is widened by the standing wall 2b and the cut and bent portion 4b. At this time, the first torsion coil spring 6 is further charged than in the state of FIG. 4, and the second torsion coil spring 7 is also charged more than when the zoom lever 3 and the plate 4 are in the neutral position. Become. In other words, in addition to the first torsion coil spring 6, the second torsion coil spring 7 also receives a biasing force for returning the zoom lever 3 and the plate 4 toward the neutral position. Therefore, in this state, the zoom lever 3 and the plate 4 are returned to the neutral position by the biasing force of the first torsion coil spring 6 and the biasing force of the second torsion coil spring 7. The position where the arm portion of the second torsion coil spring 7 comes into contact with the cut and bent portion 4b and starts to charge the second torsion coil spring 7 is the first intermediate position of the present invention. That is, the first intermediate position is set between the neutral position and the telephoto end that is the first end position.

図6は図2で示す断面Aにて切断した断面図である。図6は撮影者が画角をより広角にするためにズームレバー3を第1の方向とは反対の第2の方向に回動し、第1のねじりコイルばね6からのみズームレバー3およびプレート4を中立位置へ戻そうとする付勢力を受けている状態を示している。ズームレバー3の回動に伴い、プレート4も回動され、第1のねじりコイルばね6の2本の腕部はベース2の立ち壁部2aと切り曲げ部4aによって広げられる。このとき、第1のねじりコイルばね6はズームレバー3およびプレート4が中立位置にあるときよりもチャージされるので、ズームレバー3およびプレート4を中立位置方向へ戻そうとする。一方、第2のねじりコイルばね7の2本の腕部は、ズームレバー3およびプレート4が中立位置にあるときと同様に、ベース2の立ち壁部2bにかかっている。したがって、第2のねじりコイルばね7の付勢力はズームレバー3およびプレート4に与えられていない。   6 is a cross-sectional view taken along a cross-section A shown in FIG. FIG. 6 shows that the photographer rotates the zoom lever 3 in the second direction opposite to the first direction in order to make the angle of view wider, and only from the first torsion coil spring 6. The state which is receiving the urging | biasing force which tries to return 4 to a neutral position is shown. As the zoom lever 3 is rotated, the plate 4 is also rotated, and the two arms of the first torsion coil spring 6 are widened by the standing wall 2a and the bent portion 4a of the base 2. At this time, since the first torsion coil spring 6 is charged more than when the zoom lever 3 and the plate 4 are in the neutral position, the first torsion coil spring 6 tries to return the zoom lever 3 and the plate 4 toward the neutral position. On the other hand, the two arms of the second torsion coil spring 7 rest on the standing wall 2b of the base 2 in the same manner as when the zoom lever 3 and the plate 4 are in the neutral position. Accordingly, the biasing force of the second torsion coil spring 7 is not applied to the zoom lever 3 and the plate 4.

図7は図2で示す断面Aにて切断した断面図である。図7は図6の状態よりも更にズームレバー3およびプレート4を望遠側へ回動し、ズームレバー3およびプレート4が第2の端位置である広角端位置にある状態を示している。この状態では、第1のねじりコイルばね6の2本の腕部はベース2の立ち壁部2aと切り曲げ部4aによって広げられ、第2のねじりコイルばね7の2本の腕部はベース2の立ち壁部2bと切り曲げ部4bによって広げられている。このとき、第1のねじりコイルばね6は図6の状態よりもさらにチャージされるとともに、第2のねじりコイルばね7もズームレバー3およびプレート4が中立位置にあるときよりもチャージされることになる。すなわち、第1のねじりコイルばね6に加え第2のねじりコイルばね7からもズームレバー3およびプレート4を中立位置方向へ戻そうとする付勢力を受けている。したがって、この状態では第1のねじりコイルばね6の付勢力と第2のねじりコイルばね7の付勢力によってズームレバー3およびプレート4を中立位置方向へ戻そうとする。なお、第2のねじりコイルばね7の腕部が切り曲げ部4bに当接して第2のねじりコイルばね7をチャージし始める位置が本発明の第2の中間位置である。すなわち、第2の中間位置は中立位置と第2の端位置である広角端との間に設定されている。   7 is a cross-sectional view taken along a cross-section A shown in FIG. FIG. 7 shows a state where the zoom lever 3 and the plate 4 are further rotated to the telephoto side than the state of FIG. 6 and the zoom lever 3 and the plate 4 are at the wide-angle end position which is the second end position. In this state, the two arm portions of the first torsion coil spring 6 are spread by the standing wall portion 2a and the cut and bent portion 4a of the base 2, and the two arm portions of the second torsion coil spring 7 are the base 2 It is widened by the standing wall 2b and the cut and bent portion 4b. At this time, the first torsion coil spring 6 is further charged than in the state of FIG. 6, and the second torsion coil spring 7 is also charged more than when the zoom lever 3 and the plate 4 are in the neutral position. Become. In other words, in addition to the first torsion coil spring 6, the second torsion coil spring 7 also receives a biasing force for returning the zoom lever 3 and the plate 4 toward the neutral position. Therefore, in this state, the zoom lever 3 and the plate 4 are returned to the neutral position by the biasing force of the first torsion coil spring 6 and the biasing force of the second torsion coil spring 7. The position where the arm portion of the second torsion coil spring 7 comes into contact with the cut and bent portion 4b and starts to charge the second torsion coil spring 7 is the second intermediate position of the present invention. That is, the second intermediate position is set between the neutral position and the wide-angle end that is the second end position.

図8はズームレバー3を望遠端または広角端に操作したときの第1のねじりコイルばね6および第2のねじりコイルばね7の変位軌跡を示している。変位軌跡10aはズームレバー3を望遠端まで操作したときの第1のねじりコイルばね6の腕部分の変位軌跡を示している。変位軌跡10bはズームレバー3を広角端まで操作したときの第2のねじりコイルばね7の腕部分の変位軌跡を示している。重複領域10cは変位軌跡10aと変位軌跡10bとが重複する部分となるをハッチングにて示したものである。   FIG. 8 shows displacement trajectories of the first torsion coil spring 6 and the second torsion coil spring 7 when the zoom lever 3 is operated to the telephoto end or the wide angle end. A displacement locus 10a represents a displacement locus of the arm portion of the first torsion coil spring 6 when the zoom lever 3 is operated to the telephoto end. A displacement locus 10b indicates a displacement locus of the arm portion of the second torsion coil spring 7 when the zoom lever 3 is operated to the wide angle end. The overlapping region 10c is indicated by hatching where the displacement locus 10a and the displacement locus 10b overlap.

図9は横軸にズームレバー3の回動量、縦軸にズームレバー3を回動させるのに必要な動作力を示したものである。   FIG. 9 shows the amount of rotation of the zoom lever 3 on the horizontal axis and the operating force necessary to rotate the zoom lever 3 on the vertical axis.

撮影者がズームレバー3を望遠側に回動させた際にプレート4はズームレバー3と一体となって回動し、プレート4の切り曲げ部4aにて、第1のねじりコイルばね6の腕部の一端を付勢力が増す方向へ移動させる。切り曲げ部4bが第2のねじりコイルばね7が有する腕の一端に触れるまでの間、ズームレバー3およびプレート4は第1のねじりコイルばね6によってのみ中立位置へ戻そうとする力を受ける。   When the photographer rotates the zoom lever 3 to the telephoto side, the plate 4 rotates integrally with the zoom lever 3, and the arm of the first torsion coil spring 6 is formed at the cut and bent portion 4 a of the plate 4. One end of the part is moved in a direction in which the urging force increases. The zoom lever 3 and the plate 4 receive a force to return to the neutral position only by the first torsion coil spring 6 until the cut and bent portion 4b touches one end of the arm of the second torsion coil spring 7.

撮影者がズームレバー3をさらに望遠側に回動させると、プレート4はさらに回動して、切り曲げ部4bが第2のねじりコイルばね7の腕部に接する。ズームレバー3およびプレート4は第1のねじりコイルばね6からの付勢力に加えて、第2のねじりコイルばね7からの付勢力も受けることになる。これは撮影者がズームレバー3を広角側に回動させた際も同じである。   When the photographer rotates the zoom lever 3 further to the telephoto side, the plate 4 further rotates, and the cut and bent portion 4 b comes into contact with the arm portion of the second torsion coil spring 7. The zoom lever 3 and the plate 4 receive a biasing force from the second torsion coil spring 7 in addition to the biasing force from the first torsion coil spring 6. This is the same when the photographer rotates the zoom lever 3 to the wide angle side.

このとき、図9に示す通りズームレバーを回動させるために必要な力は第2のねじりコイルばね7の付勢力を受ける前後で大きく変化する。この変化点の通過直後でズーム速度を変更するように制御することで、撮影者はズーム速度の変更ポイントをズームレバー3の回動時の力量から確認できる。したがって、撮影者はズーム速度の調整をやり易くなる。   At this time, as shown in FIG. 9, the force necessary to rotate the zoom lever greatly changes before and after receiving the urging force of the second torsion coil spring 7. By performing control so as to change the zoom speed immediately after passing through the change point, the photographer can check the change point of the zoom speed from the amount of force when the zoom lever 3 is rotated. Therefore, the photographer can easily adjust the zoom speed.

第1のねじりコイルばね6と、第1のねじりコイルばね6に近接して配置された第2のねじりコイルばね7がズームレバー3の回動によって描く変位軌跡は図8のように一部分が重複する。   The displacement locus drawn by the rotation of the zoom lever 3 by the first torsion coil spring 6 and the second torsion coil spring 7 disposed in the vicinity of the first torsion coil spring 6 partially overlaps as shown in FIG. To do.

ズームレバー3が第1の中間位置よりも望遠側に操作されるときおよびズームレバー3が第2の中間位置よりも広角側に操作されるときには、第1のねじりコイルばね6の腕部の変位方向と第2のねじりコイルばね7の腕部の変位方向とが同一方向となる。したがって、ズームレバー3の回動に伴い、切り曲げ部4aを回動させ一方のねじりコイルばねの腕部が重複領域10cに到達した際には、他方のねじりコイルばねの腕部は立ち壁部2aに当接する状態となり、重複領域10cには侵入しない。このため2つのねじりコイルばねの腕部が接触により、ズームレバー3の回動が阻害されることはない。このようにすることで、より少ないスペースに2つのねじりコイルばねを配置することができる。すなわち、操作部材の操作量に応じて中立位置に戻る力が変化する構成を少ないスペースで実現することが可能になり、電子機器を小型化できるという効果を奏する。   When the zoom lever 3 is operated to the telephoto side from the first intermediate position and when the zoom lever 3 is operated to the wide-angle side from the second intermediate position, the arm portion of the first torsion coil spring 6 is displaced. The direction and the displacement direction of the arm portion of the second torsion coil spring 7 are the same direction. Therefore, when the zoom lever 3 is rotated, when the cut and bent portion 4a is rotated and the arm portion of one torsion coil spring reaches the overlapping region 10c, the arm portion of the other torsion coil spring is the standing wall portion. 2a, and does not enter the overlapping region 10c. For this reason, the rotation of the zoom lever 3 is not hindered by the contact of the arms of the two torsion coil springs. By doing in this way, two torsion coil springs can be arranged in a smaller space. That is, it is possible to realize a configuration in which the force for returning to the neutral position changes in accordance with the operation amount of the operation member in a small space, and there is an effect that the electronic apparatus can be downsized.

実施形態のデジタルカメラ1を図2で示す断面Aにて切断した断面図Sectional drawing which cut | disconnected the digital camera 1 of embodiment by the cross section A shown in FIG. デジタルカメラ1を前面側から見た斜視図The perspective view which looked at the digital camera 1 from the front side 第1のねじりコイルばね6から反力を受けている状態を図2で示す断面Bにて切断した断面図Sectional drawing which cut | disconnected the state which has received the reaction force from the 1st torsion coil spring 6 in the cross section B shown in FIG. ズームレバー3を望遠側に回動し、第1のねじりコイルばね6から反力を受けている状態を図2で示す断面Aにて切断した断面図FIG. 2 is a cross-sectional view of a state where the zoom lever 3 is rotated to the telephoto side and is receiving a reaction force from the first torsion coil spring 6 at a cross section A shown in FIG. ズームレバー3を望遠側に回動し、第1のねじりコイルばね6と第2のねじりコイルばね7から反力を受けている状態を図2で示す断面Aにて切断した断面図FIG. 2 is a cross-sectional view of a state where the zoom lever 3 is rotated to the telephoto side and the reaction force is received from the first torsion coil spring 6 and the second torsion coil spring 7 at a section A shown in FIG. ズームレバー3を広角側に回動し、第1のねじりコイルばね6から反力を受けている状態を図2で示す断面Aにて切断した断面図Sectional drawing which cut | disconnected the state which has rotated the zoom lever 3 to the wide angle side, and received the reaction force from the 1st torsion coil spring 6 in the cross section A shown in FIG. ズームレバー3を広角側に回動し、第1のねじりコイルばね6と第2のねじりコイルばね7から反力を受けている状態を図2で示す断面Aにて切断した断面図FIG. 2 is a cross-sectional view of a state where the zoom lever 3 is turned to the wide-angle side and is receiving a reaction force from the first torsion coil spring 6 and the second torsion coil spring 7 at a section A shown in FIG. ズームレバー3の回動における第1のねじりコイルばねと第2のねじりコイルばねの移動軌跡を示した図The figure which showed the movement locus | trajectory of the 1st torsion coil spring and the 2nd torsion coil spring in rotation of the zoom lever 3 ズームレバー3を回動量と回動に必要な動作力の関係を示すグラフA graph showing the relationship between the amount of rotation of the zoom lever 3 and the operating force required for rotation

1 撮像措置
2 ベース
2a 立ち壁部
2b 立ち壁部
3 ズームレバー
4 プレート
4a 切り曲げ部
4b 切り曲げ部
5 ブラシ
5a ブラシ先端部
6 第1のねじりコイルばね
7 第2のねじりコイルばね
8 ズームレンズ鏡筒
9 基板
10a 移動領域
10b 移動領域
10c 重複領域
DESCRIPTION OF SYMBOLS 1 Imaging measure 2 Base 2a Standing wall part 2b Standing wall part 3 Zoom lever 4 Plate 4a Cutting and bending part 4b Cutting and bending part 5 Brush 5a Brush front-end | tip part 6 1st torsion coil spring 7 2nd torsion coil spring 8 Zoom lens mirror Tube 9 Substrate 10a Moving area 10b Moving area 10c Overlapping area

Claims (2)

中立位置から第1の方向に第1の端位置まで操作可能であるとともに、前記中立位置から前記第1の方向とは反対の第2の方向に第2の端位置まで操作可能な操作部材と、
2本の腕部を有し、前記操作部材が前記中立位置から前記第1の方向に前記第1の端位置まで操作されるときまたは前記操作部材が前記中立位置から前記第2の方向に前記第2の端位置まで操作されるときに、前記操作部材に対して前記中立位置方向に付勢する第1のねじりコイルばねと、
2本の腕部を有し、前記操作部材が前記中立位置と前記第1の端位置との間に設定される第1の中間位置から前記第1の方向に前記第1の端位置まで操作されるときまたは前記操作部材が前記中立位置と前記第2の端位置との間に設定される第2の中間位置から前記第2の方向に前記第2の端位置まで操作されるときに、前記操作部材に対して前記中立位置方向に付勢する第2のねじりコイルばねと、
前記操作部材、前記第1のねじりコイルばねおよび前記第2のねじりコイルばねを保持する保持部材と備え
前記操作部材が前記第1の中間位置よりも前記第1の方向に操作されるときには、前記第1のねじりコイルばねの一方の腕部の変位方向と前記第2のねじりコイルばねの一方の腕部の変位方向とが同一方向となり、前記操作部材が前記第2の中間位置よりも前記第2の方向に操作されるときに、前記第1のねじりコイルばね他方の腕部の変位方向と前記第2のねじりコイルばね他方の腕部の変位方向とが同一方向とな、前記操作部材を前記第1の方向に操作したときの前記第1のねじりコイルばね前記一方の腕部の変位軌跡の一部が、前記操作部材を前記第2の方向に操作したときの前記第2のねじりコイルばねの前記他方の腕部の変位軌跡の一部と重なるように、前記保持部材は前記第1のねじりコイルばねおよび前記第2のねじりコイルばね保持することを特徴とする電子機器。
An operation member operable from the neutral position to the first end position in the first direction and operable from the neutral position to the second end position in the second direction opposite to the first direction; ,
Two arm portions, and when the operation member is operated from the neutral position to the first end position in the first direction or when the operation member is moved from the neutral position to the second direction A first torsion coil spring that urges the operation member in the neutral position direction when operated to a second end position;
Two arm portions are provided, and the operation member is operated from a first intermediate position set between the neutral position and the first end position to the first end position in the first direction. Or when the operation member is operated from a second intermediate position set between the neutral position and the second end position to the second end position in the second direction, A second torsion coil spring that urges the operation member in the neutral position direction;
The operating member, and a holding member for holding the first torsion coil spring and the second torsion coil spring,
When the operation member is operated in the first direction relative to the first intermediate position , the displacement direction of one arm portion of the first torsion coil spring and one of the second torsion coil springs of the displacement direction of the arm portion is in the same direction, when the operating member is operated in the second direction than the second intermediate position, the other arm of the first torsion coil spring the displacement direction of the other arm of the displacement direction the second torsion coil spring Ri is Do the same direction, the one of the first torsion coil spring when operating the operation member in the first direction some of the displacement trajectory of the arm portion of, so as to overlap with part of the displacement trajectory of the other arm of the second torsion coil spring when operating the operation member in the second direction, the holding member ne of the first torsion coil spring and the second Electronic apparatus, characterized in that to hold the coil spring Ri.
前記操作部材は前記第1のねじりコイルばねの前記一方または他方の腕部に当接する第1の当接部と、前記第2のねじりコイルばねの前記一方または他方の腕部に当接する第2の当接部とが形成され、前記操作部材が前記中立位置と前記第1の中間位置との間または前記中立位置と前記第2の中間位置との間で操作されているとき、前記第2の当接部は前記第2のねじりコイルばねの前記一方または他方の腕部に当接しないように、前記保持部材は前記第2のねじりコイルばね保持することを特徴とする請求項に記載の電子機器。 The operating member One said first torsion coil spring or the other of the first abutment to the arm portion abuts, said one of the second torsion coil spring or other arm in contact with the second When the operating member is operated between the neutral position and the first intermediate position or between the neutral position and the second intermediate position, the abutment so as not to contact with the one or the other arm of the second torsion coil spring, said retaining member to claim 1, characterized in that for holding the second torsion coil spring The electronic device described.
JP2009020231A 2009-01-30 2009-01-30 Electronics Expired - Fee Related JP5328393B2 (en)

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