JP4183073B2 - Digital still camera - Google Patents

Digital still camera Download PDF

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Publication number
JP4183073B2
JP4183073B2 JP2003047104A JP2003047104A JP4183073B2 JP 4183073 B2 JP4183073 B2 JP 4183073B2 JP 2003047104 A JP2003047104 A JP 2003047104A JP 2003047104 A JP2003047104 A JP 2003047104A JP 4183073 B2 JP4183073 B2 JP 4183073B2
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JP
Japan
Prior art keywords
main body
lens barrel
printed circuit
flexible printed
digital still
Prior art date
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JP2003047104A
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Japanese (ja)
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JP2004260392A (en
Inventor
仁 野崎
恒明 折笠
康介 萩原
英典 宮本
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Nikon Corp
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Nikon Corp
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  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Structure And Mechanism Of Cameras (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Studio Devices (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Lens Barrels (AREA)
  • Cameras In General (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、鏡筒部が本体部に対して回転可能なデジタルスチルカメラに関し、特に鏡筒部と本体部との間の電気配線構造を工夫したものである。
【0002】
【従来の技術】
撮影レンズ光学系を保持する鏡筒部を本体部とは別のブロックで構成し、鏡筒部を撮影レンズ光軸と直交する軸回りに本体部に回転可能に軸支したデジタルスチルカメラが知られている。この種の鏡筒部回転式のデジタルスチルカメラは、本体部を動かさずに撮影光軸の向きを変更できるので、フレーミングの自由度が高い。
一方、回転式であるが故に、本体部と鏡筒部との間の電気配線は、必然的に回転軸部材の中を通すことになり、従来はその配線部材として複数のリード線を用いていた。特許文献1は、相対回転可能に連結された2つのブロック間をリード線を用いて接続する例を示している。
【0003】
【特許文献1】
特開平9−233413号公報(図4)
【0004】
【発明が解決しようとする課題】
しかしながら、複数のリード線を用いると、鏡筒部が本体部に対して回転するときにリード線同士が接触して音を発し、使用者が不快感を抱くおそれがある。またリード線を複数本使用するとコストアップとなる。一方、リード線に代えてフレキシブルプリント基板(FPC)を用いると、回転時にFPCがねじれて悪影響を及ぼすおそれがある。
【0005】
本発明の目的は、鏡筒部回転型のデジタルスチルカメラにおいて、本体部と鏡筒部との間の電気配線部材としてFPCを問題なく使用できるようにすることにある。
【0006】
【課題を解決するための手段】
本発明は、本体部と鏡筒部とを別体で構成し、所定の回転軸回りに本体部と鏡筒部とを相対回転可能に構成したデジタルスチルカメラに適用される。そして、鏡筒部と本体部とを電気的に接続するフレキシブルプリント基板を備え、フレキシブルプリント基板は、本体部側配置部と、鏡筒部側配置部と、上記回転軸を横切って両配置部をクランク状に連結する連結部とから成り、連結部に設定した折り曲げ所定の回転軸と略一致した状態で、連結部が折り曲げ部を基準に折れるよう構成したことを特徴とする
請求項2の発明は、本体部と鏡筒部とを軸支する中空状の回動軸部材内に連結部を配置したものである。
請求項3の発明は、連結部の回転軸と直交する方向の一端側を支持し、相対回転時に鏡筒部または本体部と一体に回転する支持部材を更に備えたものである。
請求項4の発明は、2枚の片面フレキシブルプリント基板を重ね合わせ、重ね合わされた2枚の片面フレキシブルプリント基板をさらに一体に折り畳み重ね合わせて上記フレキシブルプリント基板を構成したものである。
【0007】
【発明の実施の形態】
図1〜図11により本発明の一実施の形態を説明する。
図1は本実施形態におけるデジタルスチルカメラの外観を示す斜視図である。このカメラは、本体部10と鏡筒部20とが別々のブロックで構成されて成る。本体部10には、液晶モニタ,メモリカードの装填部,電池室,CPU等が設けられ、鏡筒部20には、撮影レンズ,撮像素子,信号処理回路等が設けられるが、図はこれらの部品が未装着の状態を示す。鏡筒部20は、撮影レンズ光軸LXと直交する軸回りに本体部10に回転可能に軸支され、図は鏡筒部20が本体部10に対して90度回転した状態を示している。
【0008】
図2,図3により本体部10と鏡筒部20との回転機構について説明する。鏡筒部20に一体化される回転制限部材21には、本体部側に突出する直径16mm程度のの筒状部21aが形成され、この筒状部21aの中心が回転軸RXとなる。筒状部21aは、本体側の回転制限部材11にウエーブワッシャ31を介して回転可能に嵌合され、Gリング32により抜け止めがなされる。筒状部21aの内周面側にはFPC支持部材22が一体に取り付けられるが、その詳細は後述する。
【0009】
図4,図5に示すように、鏡筒側回転制限部材21には2箇所に爪21b,21cが設けられる一方、本体側回転制限部材11には1箇所に爪11bが設けられている。鏡筒部20が一方向に回転すると一方の爪21bが本体側の爪11bに当接することで回転が規制され、逆方向に回転すると他方の爪21cが本体側の爪11bに当接することで回転が規制される。ウェーブワッシャ31と本体側回転制限部材11とには、90度の回転ごとにクリック感を与える機構が設けられ、これにより使用者は本体部10と鏡筒部20との回転角度を容易に把握できる。
【0010】
本体部10に内蔵された電気部品と鏡筒部20に内蔵された電気部品との間の電気的接続は、フレキシブルプリント基板(以下、FPC)40をもってなされる。本体部10と鏡筒部20とが相対回転可能であるため、FPC40は必然的に回転軸部材である筒状部21aを通ることになるが、相対回転によるFPC40のねじれが懸念される。本実施形態では以下のような構成とすることでねじれの問題を解決している。
【0011】
図6(a),(b)はFPC40の展開図を示し、FPC40は、2枚の片面FPC40A,40Bを重ね合わせて構成される。層構成部41には裏打ち板が設けられるとともに、例えば信号本数60本のコネクタが取り付けられる。2枚の片面FPC40A,40Bは、層構成部41からそれぞれ2本の枝部42に分かれ、先端部分は再び一体となり、さらに各々2本の接続部43A,43Bに分かれる。本実施形態では、層構成部41に直接繋がる部分の幅が7mm程度であり、各枝部42の幅は3.3mm程度とされるが、これらの数値に限定されるものではない。
なお、外部からのノイズをシールドするため、FPC40の両面にはシールド膜がコーティングされている。
【0012】
FPC40をカメラに組み込む際には、図4(b)の線Lに沿って折り畳み、図4(c)の状態とする。各枝部42は線Lに沿って左右対称に形成されているので、折り曲げたときに完全に重なり、1本の枝部42となる。枝部42は単純な直線ではなく、途中にクランク部44が設けられている。
このようにFPC40を折り畳むことで、多くの信号線を有する構成でありながらFPC40をコンパクト化できる。また同等の本数の信号線をリード線で実現する場合と比べてコストダウンが図れる。
【0013】
図7は回転部におけるFPC40の配置を示している。FPC40の層構成部41は鏡筒部20内のリジッド基板23(図3)にコネクタを介して接続される。一方、他端側の接続部43A,43Bは、鏡筒部20側から筒状部21aを通して本体部10側に渡され、本体部10内のリジッド基板や他のFPCに接続される。FPC40のクランク部44は筒状部21a内に位置し、図10に示すようにそのクランク部44のほぼ中央を回転軸RXが通過するよう配置される。そして、本体部10と鏡筒部20とが相対回転すると、クランク部44が回転軸RXを折り曲げ中心として折れ曲がる。つまりクランク部44は、回転軸RXを横切って枝部42の本体部側と鏡筒部側とを連結する連結部を構成し、その折り曲げ中心が回転軸RXと一致している。
【0014】
図8はFPC支持構造を示し、(a)は鏡筒部側から見た図、(b)は本体部側から見た図である。筒状部21aの内周面に配置されたFPC支持部材22は、筒状部21aに嵌合される2箇所の嵌合部22a,22bと、FPC40のクランク部44を支持する支持部22cとを有し、筒状部21と一体に回転する。支持部22cは、クランク部44の回転軸RXと直交する方向の一端(図10にaで示す部分)を支持する。
【0015】
図9はクランク部44の他端(図10のb部分)を支持する構成を本体部側から見た図である。24は鏡筒部20の回転に連動して回転する連動部材であり、連動部材24には支持部24aが突設されている。クランク部44が折り曲げられていないときには、図9(a)に示すように支持部24aはクランク部44から離れており、相対回転によってクランク部44がほぼ90度折り曲げられる状況となると、支持部24aがクランク部44のb部分を支持する。
【0016】
以上のように構成されたカメラにおいて、本体部10と鏡筒部20とを相対回転させるべく力を加えると、鏡筒部20側の筒状部21aが本体側回転制限部材11に対して回転することで、両者が回転軸RX回りに相対回転する。この相対回転に伴い、両端をそれぞれ本体部10および鏡筒部20に固定されたFPC40は変形するが、本実施形態では回転軸RXがFPC40のクランク部44を通過しているため、クランク部44に回転軸RXを折り曲げ中心とする曲げ力が作用する。したがって、図11(a)〜(c)に示すように、相対回転角度に応じてクランク部44が回転軸RXを中心として折れ曲がる。
【0017】
ここで、回転軸RXは、回転角度に拘わらず常に一定位置を保持するから、クランク部44も常に一定の箇所を中心として折れ曲がることになり、FPC40の他の部分のねじれや折れ曲がり、あるいは移動が抑制される。特に本実施形態では、クランク部44の一端aを支持するFPC支持部材22が筒状部21aと一体に回転するため、FPC40のうちクランク部44から層構成部41に至るまでの箇所の撓みはほぼ完全に規制されるとともに、クランク部44がほぼ90度折り曲げられる状況では、支持部24aがクランク部44の他端bを支持する。これらの構成は、クランク部44の回転軸RXを中心とする折れ曲がりを助長し、他の部分の変形を抑制する役割を果たす。
【0018】
しかも折り曲げ部分であるクランク部44は筒状部21a内の空間にあるため、折り曲げ部分が他のカメラ構成部品に干渉するといった不都合はない。またFPC40は複数枚を重ね合わせて構成されるが、クランク44部はFPC支持部材22によって支持されているため、複数枚が纏まって折れ曲がり、ばらばらになることはない。したがってFPC同士の摩擦もなく、不快音の発生を完全に防止できる。
【0019】
なお、クランク部44の折り曲げ中心となる位置に予め折り癖をつけておき、その部分が回転軸RXと一致するように配置することで、より回転軸RX回りに折れ曲がり易くすることができる。また、図11ではクランク部44が角部をもって折れ曲がるようになっているが、R部をもって湾曲するような折れ曲がり方でもよい。また折り曲げ中心は、回転軸RXと完全に一致させることが理想的ではあるが、多少ずれていてもよい。つまりクランク部以外の箇所が少しくらいは変形してもよい。
【0020】
クランク部の形状は図10に限定されず、例えば図12(a),(b)に示す形状でもよい。またFPC支持部材22は鏡筒部20と一体に回転する例を示したが、本体部10と一体でもよい。さらに、クランク部は折れ曲がることにより筒状部内を略円運動するが、本体部と鏡筒部の相対回転角度範囲によっては、筒状部内にクランク部の円運動軌跡から外れたスペースをもたらすことができ、そのスペースに他の電気配線部材(例えばリード線)を通すことも可能である。
【0021】
【発明の効果】
本発明によれば、フレキシブルプリント基板にクランク状の連結部を設け、その連結部に設定した折り曲げ所定の回転軸と略一致した状態で、連結部が折り曲げ部を基準に折れるよう構成したので、連結部の折れ曲がり以外のフレキシブルプリント基板の変形を抑制できる。したがって、鏡筒部回転型のデジタルスチルカメラにおいてもフレキシブルプリント基板を用いることができ、複数のリード線を用いたときのような不快音の発生もなく、またコストダウンが図れる。
【図面の簡単な説明】
【図1】本発明の一実施形態に係る鏡筒部回転型デジタルスチルカメラの斜視図。
【図2】上記カメラの回転機構を説明する斜視図。
【図3】上記回転機構を説明する断面図。
【図4】回転制限機構を説明する斜視図。
【図5】回転制限機構を説明する断面図。
【図6】FPCの構成を示す図で、(b)が平面展開図、(a)がその左側面図、(c)が線Lで折り曲げた状態を示す図。
【図7】回転機構内のFPCの配置を示す斜視図。
【図8】FPC支持部材を説明する図。
【図9】他のFPC支持部材を説明する図。
【図10】上記支持部材による支持部を示すクランク部の拡大図。
【図11】本体部と鏡筒部との相対回転角度に応じたFPCの折り曲げ状況を示す図。
【図12】クランク部の他の2例を示す図。
【符号の説明】
10 本体部
11 本体部側回転制限部材
20 鏡筒部
21 鏡筒部側回転制限部材
22 FPC支持部材
22c 支持部
24 連動部材
24a 支持部
31 ウェーブワッシャ
32 Gリング
40 フレキシブルプリント基板(FPC)
41 層構成部
42 枝部
43A,43B 接続部
44 クランク部
LX 撮影レンズ光軸
RX 回転軸
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a digital still camera in which a lens barrel portion is rotatable with respect to a main body portion, and in particular, an electric wiring structure between the lens barrel portion and the main body portion is devised.
[0002]
[Prior art]
A digital still camera is known in which the lens barrel that holds the photographic lens optical system is composed of a block separate from the main body, and the lens barrel is pivotally supported on the main body around an axis perpendicular to the optical axis of the photographic lens. It has been. This type of lens barrel rotation type digital still camera has a high degree of freedom in framing because the direction of the photographing optical axis can be changed without moving the main body.
On the other hand, because of the rotary type, the electrical wiring between the main body and the lens barrel is inevitably passed through the rotating shaft member, and conventionally a plurality of lead wires are used as the wiring member. It was. Patent Document 1 shows an example in which two blocks connected so as to be relatively rotatable are connected using a lead wire.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-233413 (FIG. 4)
[0004]
[Problems to be solved by the invention]
However, when a plurality of lead wires are used, when the lens barrel portion rotates with respect to the main body portion, the lead wires come into contact with each other to generate sound, and the user may feel uncomfortable. Also, the use of multiple lead wires increases the cost. On the other hand, if a flexible printed circuit board (FPC) is used instead of the lead wire, the FPC may be twisted at the time of rotation, which may have an adverse effect.
[0005]
An object of the present invention is to make it possible to use an FPC without any problem as an electric wiring member between a main body and a lens barrel in a lens barrel rotating digital still camera.
[0006]
[Means for Solving the Problems]
The present invention is applied to a digital still camera in which a main body portion and a lens barrel portion are configured separately, and the main body portion and the lens barrel portion are configured to be relatively rotatable around a predetermined rotation axis. And it is provided with the flexible printed circuit board which electrically connects a lens-barrel part and a main-body part, and a flexible printed circuit board has a main-body-part side arrangement part, a lens-barrel part side arrangement part, and both arrangement parts across the above-mentioned rotation axis. The connecting portion is configured to be bent with respect to the bent portion in a state where the bent portion set in the connecting portion substantially coincides with a predetermined rotation axis. In the second aspect of the invention, the connecting portion is disposed in a hollow rotating shaft member that pivotally supports the main body portion and the lens barrel portion.
The invention of claim 3 further includes a support member that supports one end of the connecting portion in the direction orthogonal to the rotation axis and rotates integrally with the lens barrel portion or the main body portion during relative rotation.
According to a fourth aspect of the present invention, the above-mentioned flexible printed circuit board is configured by superimposing two single-sided flexible printed circuit boards, and further folding and overlapping the two single-sided flexible printed circuit boards.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view showing an appearance of a digital still camera according to the present embodiment. In this camera, the main body 10 and the lens barrel 20 are composed of separate blocks. The main body unit 10 is provided with a liquid crystal monitor, a memory card loading unit, a battery chamber, a CPU, and the like, and the lens barrel unit 20 is provided with a photographing lens, an image sensor, a signal processing circuit, and the like. The part is not installed. The lens barrel 20 is rotatably supported by the main body 10 around an axis orthogonal to the photographic lens optical axis LX, and the figure shows a state in which the lens barrel 20 is rotated 90 degrees with respect to the main body 10. .
[0008]
The rotation mechanism between the main body 10 and the lens barrel 20 will be described with reference to FIGS. The rotation limiting member 21 integrated with the lens barrel portion 20 is formed with a cylindrical portion 21a having a diameter of about 16 mm that protrudes toward the main body portion, and the center of the cylindrical portion 21a serves as the rotation axis RX. The cylindrical portion 21 a is rotatably fitted to the rotation limiting member 11 on the main body side via a wave washer 31, and is prevented from being detached by the G ring 32. The FPC support member 22 is integrally attached to the inner peripheral surface side of the cylindrical portion 21a, and details thereof will be described later.
[0009]
As shown in FIGS. 4 and 5, the lens barrel side rotation limiting member 21 is provided with claws 21 b and 21 c at two locations, while the main body side rotation limiting member 11 is provided with claws 11 b at one location. When the lens barrel 20 rotates in one direction, the one claw 21b comes into contact with the claw 11b on the main body side, and the rotation is restricted. Rotation is regulated. The wave washer 31 and the main body side rotation restricting member 11 are provided with a mechanism for giving a click feeling every 90 degrees of rotation so that the user can easily grasp the rotation angle between the main body 10 and the lens barrel 20. it can.
[0010]
The electrical connection between the electrical component built in the main body 10 and the electrical component built in the lens barrel 20 is made with a flexible printed circuit board (hereinafter, FPC) 40. Since the main body 10 and the lens barrel 20 can be rotated relative to each other, the FPC 40 inevitably passes through the cylindrical portion 21a that is a rotating shaft member. However, there is a concern about the twist of the FPC 40 due to relative rotation. In this embodiment, the problem of twist is solved by adopting the following configuration.
[0011]
6A and 6B are development views of the FPC 40, and the FPC 40 is configured by overlapping two single-sided FPCs 40A and 40B. The layer constituting portion 41 is provided with a backing plate and, for example, a connector having 60 signals is attached. The two single-sided FPCs 40A and 40B are divided into two branch portions 42 from the layer constituting portion 41, the tip portions are united again, and further divided into two connection portions 43A and 43B, respectively. In the present embodiment, the width of the portion directly connected to the layer constituting portion 41 is about 7 mm, and the width of each branch portion 42 is about 3.3 mm, but is not limited to these numerical values.
In order to shield noise from the outside, both sides of the FPC 40 are coated with a shield film.
[0012]
When the FPC 40 is incorporated into the camera, the FPC 40 is folded along the line L in FIG. 4B to obtain the state shown in FIG. Since each branch part 42 is formed symmetrically along the line L, it completely overlaps when bent and becomes one branch part 42. The branch portion 42 is not a simple straight line, and a crank portion 44 is provided in the middle.
By folding the FPC 40 in this way, the FPC 40 can be made compact while having a configuration having many signal lines. Further, the cost can be reduced as compared with the case where the same number of signal lines are realized by lead wires.
[0013]
FIG. 7 shows the arrangement of the FPC 40 in the rotating part. The layer constituting part 41 of the FPC 40 is connected to the rigid substrate 23 (FIG. 3) in the lens barrel part 20 via a connector. On the other hand, the connection portions 43A and 43B on the other end side are passed from the lens barrel portion 20 side to the main body portion 10 side through the tubular portion 21a, and are connected to a rigid board or other FPC in the main body portion 10. The crank part 44 of the FPC 40 is located in the cylindrical part 21a, and is arranged so that the rotation axis RX passes through substantially the center of the crank part 44 as shown in FIG. And when the main-body part 10 and the lens-barrel part 20 rotate relatively, the crank part 44 will bend | fold with the rotating shaft RX as a bending center. That is, the crank portion 44 constitutes a connecting portion that connects the main body portion side and the lens barrel portion side of the branch portion 42 across the rotation axis RX, and the bending center thereof coincides with the rotation axis RX.
[0014]
8A and 8B show the FPC support structure, where FIG. 8A is a view seen from the lens barrel side, and FIG. 8B is a view seen from the main body side. The FPC support member 22 disposed on the inner peripheral surface of the cylindrical portion 21a includes two fitting portions 22a and 22b that are fitted to the cylindrical portion 21a, and a support portion 22c that supports the crank portion 44 of the FPC 40. And rotate integrally with the cylindrical portion 21. The support portion 22c supports one end (portion indicated by a in FIG. 10) of the crank portion 44 in the direction orthogonal to the rotation axis RX.
[0015]
FIG. 9 is a view of the configuration for supporting the other end of the crank portion 44 (b portion in FIG. 10) viewed from the main body side. Reference numeral 24 denotes an interlocking member that rotates in conjunction with the rotation of the lens barrel 20, and a support portion 24 a is projected from the interlocking member 24. When the crank portion 44 is not bent, the support portion 24a is separated from the crank portion 44 as shown in FIG. 9A, and when the crank portion 44 is bent approximately 90 degrees by relative rotation, the support portion 24a Supports the b portion of the crank portion 44.
[0016]
In the camera configured as described above, when a force is applied to relatively rotate the main body 10 and the lens barrel 20, the cylindrical portion 21 a on the lens barrel 20 side rotates with respect to the main body side rotation limiting member 11. By doing so, both rotate relatively around the rotation axis RX. In accordance with this relative rotation, the FPC 40 having both ends fixed to the main body 10 and the lens barrel 20 is deformed. However, in this embodiment, the rotation axis RX passes through the crank 44 of the FPC 40. A bending force with the rotation axis RX as the center of bending acts on. Therefore, as shown in FIGS. 11A to 11C, the crank portion 44 bends about the rotation axis RX according to the relative rotation angle.
[0017]
Here, since the rotation axis RX always maintains a fixed position regardless of the rotation angle, the crank portion 44 is always bent around a fixed portion, and other portions of the FPC 40 are twisted, bent, or moved. It is suppressed. Particularly in this embodiment, since the FPC support member 22 that supports one end a of the crank portion 44 rotates integrally with the cylindrical portion 21a, the bending of the portion of the FPC 40 from the crank portion 44 to the layer constituting portion 41 is In a situation where the crank portion 44 is bent almost 90 degrees while being almost completely regulated, the support portion 24a supports the other end b of the crank portion 44. These configurations promote bending around the rotation axis RX of the crank portion 44 and play a role of suppressing deformation of other portions.
[0018]
Moreover, since the crank portion 44 that is the bent portion is in the space in the cylindrical portion 21a, there is no inconvenience that the bent portion interferes with other camera components. Further, although the FPC 40 is configured by superimposing a plurality of sheets, the crank 44 portion is supported by the FPC support member 22, so that the plurality of sheets are bent together and do not fall apart. Therefore, there is no friction between FPCs, and generation of unpleasant noise can be completely prevented.
[0019]
In addition, it is possible to make it easier to bend around the rotation axis RX by attaching a crease in advance to a position that becomes the folding center of the crank portion 44 and arranging the portion so as to coincide with the rotation axis RX. In FIG. 11, the crank portion 44 is bent at the corner portion, but may be bent at the R portion. The center of bending is ideally perfectly aligned with the rotation axis RX, but may be slightly deviated. That is, the portions other than the crank portion may be slightly deformed.
[0020]
The shape of the crank portion is not limited to that shown in FIG. 10, and may be the shape shown in FIGS. 12 (a) and 12 (b), for example. Further, although the example in which the FPC support member 22 rotates integrally with the lens barrel portion 20 has been shown, it may be integrated with the main body portion 10. Furthermore, the crank portion is bent so as to move substantially circularly in the cylindrical portion, but depending on the relative rotation angle range of the main body portion and the lens barrel portion, a space deviating from the circular movement locus of the crank portion may be provided in the cylindrical portion. It is also possible to pass other electrical wiring members (for example, lead wires) through the space.
[0021]
【The invention's effect】
According to the present invention, the flexible printed circuit board is provided with a crank-shaped connecting portion, and the connecting portion is configured to be bent with respect to the bent portion in a state where the bent portion set in the connecting portion substantially coincides with the predetermined rotation axis. Therefore, deformation of the flexible printed circuit board other than the bending of the connecting portion can be suppressed. Therefore, the flexible printed circuit board can be used also in the lens barrel rotating digital still camera, and no unpleasant noise is generated when a plurality of lead wires are used, and the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view of a lens barrel rotating digital still camera according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating a rotation mechanism of the camera.
FIG. 3 is a cross-sectional view illustrating the rotation mechanism.
FIG. 4 is a perspective view illustrating a rotation limiting mechanism.
FIG. 5 is a cross-sectional view illustrating a rotation limiting mechanism.
6A and 6B are diagrams illustrating a configuration of an FPC, in which FIG. 6B is a developed plan view, FIG. 6A is a left side view thereof, and FIG.
FIG. 7 is a perspective view showing an arrangement of FPCs in a rotation mechanism.
FIG. 8 is a diagram illustrating an FPC support member.
FIG. 9 is a diagram illustrating another FPC support member.
FIG. 10 is an enlarged view of a crank portion showing a support portion by the support member.
FIG. 11 is a diagram showing a bending state of the FPC according to the relative rotation angle between the main body and the lens barrel.
FIG. 12 is a view showing another two examples of the crank portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Main body part 11 Main body part side rotation limiting member 20 Lens barrel part 21 Lens barrel part side rotation limiting member 22 FPC support member 22c Support part 24 Interlocking member 24a Support part 31 Wave washer 32 G ring 40 Flexible printed circuit board (FPC)
41 Layer construction part 42 Branch part 43A, 43B Connection part 44 Crank part LX Shooting lens optical axis RX Rotation axis

Claims (4)

本体部と鏡筒部とを別体で構成し、所定の回転軸回りに本体部と鏡筒部とを相対回転可能に構成したデジタルスチルカメラにおいて、
前記鏡筒部と本体部とを電気的に接続するフレキシブルプリント基板を備え、
該フレキシブルプリント基板は、本体部側配置部と、鏡筒部側配置部と、前記回転軸を横切って前記両配置部をクランク状に連結する連結部とから成り、該連結部に設定した折り曲げが前記所定の回転軸と略一致した状態で、前記連結部が前記折り曲げ部を基準に折れるよう構成したことを特徴とするデジタルスチルカメラ。
In the digital still camera, which is configured separately from the main body and the lens barrel, and is configured to be relatively rotatable around the predetermined rotation axis,
A flexible printed circuit board for electrically connecting the lens barrel and the main body;
The flexible printed circuit board includes a main body part-side arrangement part, a lens barrel part-side arrangement part, and a connection part that connects the two arrangement parts in a crank shape across the rotation axis, and the bending set in the connection part in a state in which parts are substantially the same and the predetermined rotation axis, a digital still camera, wherein the connecting portion is configured to break relative to the bent portion.
前記連結部は、前記相対回転可能に前記本体部と鏡筒部とを軸支する中空状の回動軸部材内に位置していることを特徴とする請求項1に記載のデジタルスチルカメラ。  2. The digital still camera according to claim 1, wherein the connecting portion is located in a hollow rotating shaft member that pivotally supports the main body portion and the lens barrel portion so as to be relatively rotatable. 前記連結部の前記所定の回転軸と直交する方向の一端側を支持し、前記相対回転時に前記鏡筒部または本体部と一体に回転する支持部材を更に備えたことを特徴とする請求項1または2に記載のデジタルスチルカメラ。2. A support member for supporting one end side of the connecting portion in a direction orthogonal to the predetermined rotation axis and rotating integrally with the lens barrel portion or the main body portion at the time of the relative rotation. Or the digital still camera of 2. 前記フレキシブルプリント基板は、2枚の片面フレキシブルプリント基板を重ね合わせ、重ね合わされた2枚の片面フレキシブルプリント基板をさらに一体に折り畳み重ね合わせて構成されることを特徴とする請求項1〜3のいずれかに記載のデジタルスチルカメラ。  4. The flexible printed circuit board according to any one of claims 1 to 3, wherein the flexible printed circuit board is formed by superimposing two single-sided flexible printed circuit boards, and further folding and superimposing two superimposed single-sided flexible printed circuit boards. The digital still camera described in Crab.
JP2003047104A 2003-02-25 2003-02-25 Digital still camera Expired - Lifetime JP4183073B2 (en)

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