JP2008158370A - Imaging apparatus - Google Patents

Imaging apparatus Download PDF

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JP2008158370A
JP2008158370A JP2006348846A JP2006348846A JP2008158370A JP 2008158370 A JP2008158370 A JP 2008158370A JP 2006348846 A JP2006348846 A JP 2006348846A JP 2006348846 A JP2006348846 A JP 2006348846A JP 2008158370 A JP2008158370 A JP 2008158370A
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barrier
lens
rail
imaging
imaging apparatus
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Takeshi Mori
剛 森
Shinji Hotta
伸司 堀田
Masaki Suenaga
正基 末永
Junji Tanahashi
淳司 棚橋
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Sony Corp
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Sony Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide even an imaging apparatus in which the lower portion of a window portion for an imaging lens is inclined with respect to a plane perpendicular to the optical axis of the imaging lens, in which a lens barrier can be smoothly slid. <P>SOLUTION: In the imaging apparatus, the lower portion of the window portion 7 for the imaging lens has an inclined surface inclined with respect to the plane perpendicular to the optical axis of the imaging lens and the lens barrier 12 which is slid along the inner surface of the inclined surface, to open and close the window portion 7 is provided. The lens barrier 12 has an approximate-quadrangular barrier main portion 21 and a plurality of horizontal shafts 22 to 25 extending in a direction approximately orthogonal to the sliding direction of the barrier, in the one side portion and the other side portion of the barrier main portion 21 in the sliding direction of the barrier, respectively. The horizontal shafts 22 to 25 are inserted into inclined rail grooves provided in the inner surface of the inclined surface and moved in these rail grooves. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、撮像レンズを保護するレンズバリヤを内蔵した撮像装置に関する。   The present invention relates to an imaging apparatus including a lens barrier that protects an imaging lens.

撮像レンズを保護するレンズバリヤを内蔵した撮像装置として、図２５に示すものが知られている。この撮像装置１０１は、撮像レンズ用の窓部１０２をレンズバリヤ１０３で閉塞することにより撮像レンズを保護する。   As an image pickup apparatus incorporating a lens barrier for protecting the image pickup lens, one shown in FIG. 25 is known. The imaging apparatus 101 protects the imaging lens by closing the imaging lens window 102 with a lens barrier 103.

図２６に示すように、レンズバリヤ１０３は、撮像装置１０１の筐体１０４の内面に重ね合わされていて、筐体１０４の内面に沿って移動するようになっている。レンズバリヤ１０３は、カム板１０５によって駆動される。（例えば、特許文献１参照）。
特開２００５−７７５７４号公報 As shown in FIG. 26, the lens barrier 103 is superimposed on the inner surface of the housing 104 of the imaging apparatus 101 and moves along the inner surface of the housing 104. The lens barrier 103 is driven by the cam plate 105. (For example, refer to Patent Document 1).
JP 2005-77574 A

ところで、上記従来の撮像装置１０１は、レンズバリヤ１０３を筐体１０４の内面に重ね合わせた状態でスライドさせて、窓部１０２を開閉する構成になっていたために、図２７に示すように、上記筐体１０４の内面１０４ａが撮像レンズの光軸ＯＡに垂直な平面である場合にはレンズバリヤ１０３をスライドさせるのに問題はないが、図２８に示すように、上記筐体１０４の内面１０４ａが撮像レンズの光軸ＯＡに垂直な平面に対して傾斜面或いは湾曲面ＶＳになっている撮像装置には適用し難いという問題点があった。上記筐体１０４の内面１０４ａが傾斜面或いは湾曲面になっている撮像装置において、上記筐体１０４の内面１０４ａに沿って、レンズバリヤ１０３をスライドさせるためには、上記筐体１０４の内面１０４ａの内面に沿って、レンズバリヤ１０３を傾斜或いは湾曲させなければならないからである。   Incidentally, since the conventional imaging apparatus 101 is configured to open and close the window portion 102 by sliding the lens barrier 103 in a state of being superimposed on the inner surface of the housing 104, as shown in FIG. When the inner surface 104a of the housing 104 is a plane perpendicular to the optical axis OA of the imaging lens, there is no problem in sliding the lens barrier 103. However, as shown in FIG. There is a problem that it is difficult to apply to an imaging device having an inclined surface or a curved surface VS with respect to a plane perpendicular to the optical axis OA of the imaging lens. In the imaging device in which the inner surface 104a of the housing 104 is an inclined surface or a curved surface, in order to slide the lens barrier 103 along the inner surface 104a of the housing 104, the inner surface 104a of the housing 104 This is because the lens barrier 103 must be inclined or curved along the inner surface.

撮像装置１０１には、記録媒体としてビデオテープの外にディスク状記録媒体を使用するものがあり、ディスク状記録媒体を使用する撮像装置１０１においては、デザイン的にも機能的にも、窓部１０２の下部を傾斜面や湾曲面にすることが望まれることが多い。   Some image pickup apparatuses 101 use a disk-shaped recording medium as a recording medium in addition to a video tape. In the image pickup apparatus 101 using a disk-shaped recording medium, the window portion 102 is designed and functional. In many cases, it is desirable to make the lower part of the substrate have an inclined surface or curved surface.

本発明の目的は、撮像レンズ用の窓部の下部が撮像レンズの光軸に垂直な平面に対し傾斜している撮像装置においてもレンズバリヤを円滑にスライドすることのできる撮像装置を提供することにある。   An object of the present invention is to provide an imaging device capable of smoothly sliding a lens barrier even in an imaging device in which a lower portion of a window for an imaging lens is inclined with respect to a plane perpendicular to the optical axis of the imaging lens. It is in.

本発明は、撮像レンズ用の窓部の下部が撮像レンズの光軸に垂直な平面に対し傾斜する傾斜面を有し、該傾斜面の内面に沿わせてレンズバリヤをスライドさせて上記窓部を開閉する撮像装置において、
上記レンズバリヤは、略四角形のバリヤ主部と、該バリヤ主部のバリヤスライド方向の一側部と他側部にそれぞれバリヤスライド方向と略直交する方向に延びる複数の横軸と、で形成し、上記横軸を上記傾斜面の内面に設けた傾斜状のレール溝に挿入して、該レール溝に沿ってレンズバリヤをスライドさせる構成にした。 In the present invention, the lower portion of the window for the imaging lens has an inclined surface that is inclined with respect to a plane perpendicular to the optical axis of the imaging lens, and the window barrier is slid along the inner surface of the inclined surface. In an imaging device that opens and closes
The lens barrier is formed by a substantially rectangular barrier main portion and a plurality of horizontal axes extending in a direction substantially perpendicular to the barrier slide direction on one side and the other side of the barrier main portion in the barrier slide direction. The horizontal axis is inserted into an inclined rail groove provided on the inner surface of the inclined surface, and the lens barrier is slid along the rail groove.

バリヤ主部のバリヤスライド方向の一側部と他側部にそれぞれ形成された複数の軸部は、互いに間隔をもって、レール部に接触しているので、撮像レンズ用の窓部の下部が傾斜面になっている場合でも、上記軸部は、レール溝に沿って円滑にスライド移動する。   A plurality of shaft portions respectively formed on one side portion and the other side portion of the barrier main portion in the barrier slide direction are in contact with the rail portion at intervals, so that the lower portion of the window portion for the imaging lens is inclined. Even in this case, the shaft portion smoothly slides along the rail groove.

図１は撮像装置１の斜視図である。撮像装置１は、ビデオテープやディスクを記録媒体とするデジタルビデオカメラとして構成されている。（以下、撮像装置１をビデオカメラと総称する）。   FIG. 1 is a perspective view of the imaging apparatus 1. The imaging device 1 is configured as a digital video camera using a video tape or disk as a recording medium. (Hereinafter, the imaging device 1 is generically referred to as a video camera).

上記ビデオカメラ１の一側面側には記録媒体収納部２が設けられていると共にグリップベルト３が取り付けられる。また、他前面側にはビューファインダ４と液晶等のモニタパネル（図示省略）が配置されている。また、上面側には電源ボタン５や集音マイク６等が配置され、前面側には撮像レンズ用の窓部７が配置されていて、該窓部７の下部の外面は、円弧状の傾斜面８になっている。上記窓部７および傾斜面８は、ビデオカメラ１のフロント筐体９に設けられている。上記フロント筐体９の一側部には、レバー組付部１０が設けられていて、該レバー組付部１０にバリヤ操作レバー１１が上下方向にスライド可能に組み付けられている。上記フロント筐体９の窓部７の下部外面を円弧状の傾斜面８に形成したのは、記録媒体収納部２に収納される記録媒体としてのディスクの形状に合わせてビデオカメラ１を小型化するため、或いは、デザイン性等を考慮したものである。上記フロント筐体９の内面も上記外面と同様の傾斜面になっている。   A recording medium storage unit 2 is provided on one side of the video camera 1 and a grip belt 3 is attached. Further, a viewfinder 4 and a monitor panel (not shown) such as a liquid crystal are arranged on the other front side. Further, a power button 5 and a sound collecting microphone 6 are disposed on the upper surface side, and a window portion 7 for the imaging lens is disposed on the front surface side. The outer surface of the lower portion of the window portion 7 has an arcuate inclination. It is surface 8. The window 7 and the inclined surface 8 are provided on the front housing 9 of the video camera 1. A lever assembly 10 is provided on one side of the front housing 9, and a barrier operation lever 11 is assembled to the lever assembly 10 so as to be slidable in the vertical direction. The lower outer surface of the window portion 7 of the front housing 9 is formed in the arc-shaped inclined surface 8 because the video camera 1 is downsized in accordance with the shape of the disc as the recording medium stored in the recording medium storage portion 2. For this reason, the design is taken into consideration. The inner surface of the front housing 9 has an inclined surface similar to the outer surface.

図２は上記フロント筐体９をカメラ本体側から取り外して背面側から見た斜視図である。上記フロント筐体９の内面には上記レンズバリヤ１２がスライド可能に配置されていると共に、該レンズバリヤ１２を挟むようにして第１の裏当板１３が配置されている。上記レンズバリヤ１２は、上記バリヤ操作レバー１１を操作することによって、上記バリヤ操作レバー１０の背面側に設けたリンク操作部１４およびリンク１５を介して上下方向にスライドする。上記バリヤ操作レバー１１をレバー組付部１０の上端側に押し上げた状態において、上記レンズバリヤ１２は、上記窓部７を閉じ、上記バリヤ操作レバー１１をレバー組付部１０の下端側に押し下げた状態において、上記窓部７を開く。   FIG. 2 is a perspective view of the front housing 9 as seen from the back side after being removed from the camera body side. The lens barrier 12 is slidably disposed on the inner surface of the front housing 9 and a first backing plate 13 is disposed so as to sandwich the lens barrier 12. When the barrier operation lever 11 is operated, the lens barrier 12 slides in the vertical direction via a link operation unit 14 and a link 15 provided on the back side of the barrier operation lever 10. In a state where the barrier operation lever 11 is pushed up to the upper end side of the lever assembly portion 10, the lens barrier 12 closes the window portion 7 and pushes the barrier operation lever 11 down to the lower end side of the lever assembly portion 10. In the state, the window 7 is opened.

上記第１の裏当板１３の背面には、第２の裏当板１６が重ね合わされて上記リンク１５やバリヤ操作部１４が脱落するのを防止する。また、第２の裏当板１６の背面にはトグルバネ１７が配置されていて、該トグルバネ１７によって、上記レンズバリヤ１２を閉じた状態或いは開いた状態に維持する。また、第２の裏当板１６の背面には第３の裏当板１８が配置されていて、該第３の裏当板１８と上記第２の裏当板１６の間に上記トグルバネ１７が挟まれた状態で配置される。上記トグルバネ１７は、一端部１７ａが次に説明するレンズバリヤ１２のリンク係合突起２６に係止され、他端部１７ｂが上記第３の裏当板１８に設けたバネ係止部６７に係止される。   A second backing plate 16 is overlapped on the back surface of the first backing plate 13 to prevent the link 15 and the barrier operation unit 14 from falling off. Further, a toggle spring 17 is disposed on the back surface of the second backing plate 16, and the lens barrier 12 is maintained in a closed state or an open state by the toggle spring 17. Further, a third backing plate 18 is disposed on the back surface of the second backing plate 16, and the toggle spring 17 is interposed between the third backing plate 18 and the second backing plate 16. Arranged in a sandwiched state. The toggle spring 17 has one end 17a engaged with a link engaging projection 26 of the lens barrier 12 described below, and the other end 17b engaged with a spring engaging portion 67 provided on the third backing plate 18. Stopped.

次に、レンズバリヤ１２について説明する。図３に示すように、レンズバリヤ１２は、略四角形のバリヤ主部２１と、該バリヤ主部２１のバリヤスライド方向Ａ−Ｂに沿う一側部２１ａから上記バリヤスライド方向Ａ−Ｂと略直交する方向Ｃ−Ｄに延びる第１，第２の横軸２２，２３と、バリヤ主部２１のバリヤスライド方向Ａ−Ｂに沿う他側部２１ｂから上記バリヤスライド方向Ａ−Ｂと略直交する方向Ｃ−Ｄに延びると第３，第４の横軸２４，２５と、上記バリヤ主部２１のバリヤスライド方向Ａ−Ｂと略直交する方向Ｃ−Ｄの下端側の側面部２１ｃから突出させて形成したリンク係合突起２６と、を備えている。また、上記バリヤ主部２１の撮像レンズと対向する面には、上記レンズとの接触を避けるための凹部２７が形成されている。   Next, the lens barrier 12 will be described. As shown in FIG. 3, the lens barrier 12 includes a substantially rectangular barrier main portion 21 and a side portion 21a along the barrier slide direction AB of the barrier main portion 21 and substantially orthogonal to the barrier slide direction AB. The first and second horizontal shafts 22 and 23 extending in the direction CD and the other side portion 21b along the barrier slide direction AB of the barrier main portion 21 are substantially orthogonal to the barrier slide direction AB. When extending in the direction CD, it protrudes from the third and fourth horizontal shafts 24, 25 and the side surface portion 21c on the lower end side in the direction CD substantially perpendicular to the barrier slide direction AB of the barrier main portion 21. And a link engaging protrusion 26 formed. A concave portion 27 for avoiding contact with the lens is formed on the surface of the barrier main portion 21 facing the imaging lens.

上記第１，第２の横軸２２，２３は、上記バリヤ主部２１の一側部２１ａの両端部に、最大限離された状態で形成されている。また、上記第３，第４の横軸２４，２５も、上記第１，第２の横軸２３，２４と同様に、上記バリヤ主部２１の他側部２１ｂの両端部に形成されている。   The first and second horizontal shafts 22 and 23 are formed at both ends of the one side portion 21a of the barrier main portion 21 so as to be separated as much as possible. The third and fourth horizontal shafts 24 and 25 are also formed at both end portions of the other side portion 21b of the barrier main portion 21 in the same manner as the first and second horizontal shafts 23 and 24. .

上記レンズバリヤ１２は、次に詳しく説明するフロント筐体９の内面に組み付けたときに、上記第１，第２の横軸２２，２３が上記フロント筐体９の内面に設けた第１のレール状突起３２に接触し、上記第３，第４の横軸２４，２５が上記フロント筐体９の内面に設けた第２のレール部３３に接触して、上記バリヤ主部２１を上記フロント筐体９の内面に対して非接触状態に保持する。   The lens barrier 12 is a first rail in which the first and second horizontal shafts 22 and 23 are provided on the inner surface of the front housing 9 when assembled on the inner surface of the front housing 9 described in detail below. The third and fourth horizontal shafts 24, 25 are in contact with the second rail portion 33 provided on the inner surface of the front housing 9, and the barrier main portion 21 is brought into contact with the front housing. The inner surface of the body 9 is held in a non-contact state.

図４に示すように、フロント筐体９の内面９ａには、上記レンズバリヤ１２を収容する略四角形の枠部３１が設けられている。上記枠部３１の両側部には、上記窓部７を挟んで第１，第２のレール状突起３２，３３が設けられている。   As shown in FIG. 4, a substantially rectangular frame portion 31 that accommodates the lens barrier 12 is provided on the inner surface 9 a of the front housing 9. First and second rail-like projections 32 and 33 are provided on both sides of the frame portion 31 with the window portion 7 interposed therebetween.

図５，図６に示すように、上記第１，第２のレール状突起３２，３３は、フロント筐体９の内面９ａから突出した状態に形成されている。   As shown in FIGS. 5 and 6, the first and second rail-shaped protrusions 32 and 33 are formed so as to protrude from the inner surface 9 a of the front housing 9.

図７，図８に示すように、上記フロント筐体９の枠部３１に上記レンズバリヤ１２を挿入すると、第１，第２の横軸２２，２３が第１のレール状突起３２に載置され、第３，第４の横軸２４，２５が第２のレール状突起３３に載置される。   As shown in FIGS. 7 and 8, when the lens barrier 12 is inserted into the frame portion 31 of the front housing 9, the first and second horizontal shafts 22 and 23 are placed on the first rail-shaped protrusion 32. Then, the third and fourth horizontal shafts 24 and 25 are placed on the second rail-shaped protrusion 33.

上記フロント筐体９の枠部３１に上記レンズバリヤ１２を挿入したのち、図９に示すように、上記フロント筐体９の内面に第１の裏当板１３を重ね合わせる。第１の裏当板１３の外面には、レンズバリヤ１２に設けたリンク結合突起２６を突出させる長孔４６が設けられていると共に、上記リンク１５を回動可能に取り付けるリンク取付軸４７が設けられている。また、図１０，図１１の断面図に示すように、上記第１の裏当板１３の内面には、上記第１のレール状突起３２と対向する位置に第３のレール状突起４１が設けられていて、上記第１のレール状突起３２と第３のレール状突起４１との間に上記第１，第２の横軸２２，２３を挿入する第１のレール溝４２が形成されると共に、上記第２のレール状突起３３と対向する位置に第４のレール状突起４３が設けられていて、上記第２のレール状突起３３と第４のレール状突起４３との間に上記第３，第４の横軸２４，２５を挿入する第２のレール溝４４が形成される。上記第３のレール状突起４１と第４のレール突起４３の間は、レンズバリヤ１２と非接触状態を保つように凹部４５になっている。   After the lens barrier 12 is inserted into the frame portion 31 of the front housing 9, the first backing plate 13 is overlaid on the inner surface of the front housing 9 as shown in FIG. 9. On the outer surface of the first backing plate 13, a long hole 46 for projecting the link coupling protrusion 26 provided on the lens barrier 12 is provided, and a link mounting shaft 47 for rotatably mounting the link 15 is provided. It has been. 10 and 11, a third rail-shaped protrusion 41 is provided on the inner surface of the first backing plate 13 at a position facing the first rail-shaped protrusion 32. In addition, a first rail groove 42 is formed between the first rail-shaped protrusion 32 and the third rail-shaped protrusion 41 to insert the first and second horizontal shafts 22, 23. A fourth rail-shaped projection 43 is provided at a position facing the second rail-shaped projection 33, and the third rail-shaped projection 43 is provided between the second rail-shaped projection 33 and the fourth rail-shaped projection 43. A second rail groove 44 into which the fourth horizontal shafts 24 and 25 are inserted is formed. A recess 45 is formed between the third rail-shaped protrusion 41 and the fourth rail protrusion 43 so as to maintain a non-contact state with the lens barrier 12.

上記レンズバリヤ１２は、第１，第２の横軸２２，２３を第１のレール溝４２に挿入し、第３，第４の横軸２４，２５を第２のレール溝４４に挿入することにより、フロント筐体９と第１の裏当板１３の間にスライド可能に取り付けられていて、バリヤ主部２１が上記フロント筐体９および第１の裏当板１３と非接触状態を保ちつつフロント筐体９および第１の裏当板１３の間をスライドする。   In the lens barrier 12, the first and second horizontal shafts 22 and 23 are inserted into the first rail groove 42, and the third and fourth horizontal shafts 24 and 25 are inserted into the second rail groove 44. Thus, the barrier main portion 21 is slidably attached between the front housing 9 and the first backing plate 13, while maintaining a non-contact state with the front housing 9 and the first backing plate 13. Slide between the front housing 9 and the first backing plate 13.

図１２の模式図に示すように、上記第１，第２のレール溝４２，４４は、略上半部４２ａ，４４ａが撮像レンズの光軸ＯＡに垂直な平面ＶＳに対する傾斜角度θ１が略1°に形成され、略下半部４２ｂ，４４ｂが撮像レンズの光軸ＯＡに垂直な平面ＶＳに対する傾斜角度θ２が略３°に形成されている。   As shown in the schematic diagram of FIG. 12, the first and second rail grooves 42 and 44 have an inclination angle θ1 of about 1 with respect to a plane VS in which the substantially upper half portions 42a and 44a are perpendicular to the optical axis OA of the imaging lens. The substantially lower half portions 42b and 44b are formed with an inclination angle θ2 of about 3 ° with respect to the plane VS perpendicular to the optical axis OA of the imaging lens.

第１の裏当板１３を取り付けた後に、図１３に示すように、リンク１５を取り付ける。リンク１５は、一端部に設けた軸受孔５１に上記リンク取付軸４７を挿入することにより、第１の裏当板１３に回動可能に取り付けられている。上記リンク１５の他端部には長孔５２が設けられていて、該長孔５２に上記リンク結合突起２６が挿入されている。そして、上記リンク取付軸４７を中心にしてリンク１５を回動させることにより上記レンズバリヤ１２を上下方向にスライドさせる。上記リンク１５の軸受孔５１と長孔５２の間には、次に説明するリンク操作部１４に係合する突起５３が設けられている。上記突起５３は、軸受孔５１と長孔５２の中間位置よりも軸受孔５１に近い位置に設けられていて、上記リンク操作部１４乃至バリヤ操作レバー１１の少ない移動量で上記レンズバリヤ１２の移動量を大きくすることが可能になっている。   After the first backing plate 13 is attached, the link 15 is attached as shown in FIG. The link 15 is rotatably attached to the first backing plate 13 by inserting the link attachment shaft 47 into a bearing hole 51 provided at one end. A long hole 52 is provided at the other end of the link 15, and the link coupling protrusion 26 is inserted into the long hole 52. Then, the lens barrier 12 is slid in the vertical direction by rotating the link 15 around the link mounting shaft 47. Between the bearing hole 51 and the long hole 52 of the link 15, a projection 53 that engages with the link operation unit 14 described below is provided. The protrusion 53 is provided at a position closer to the bearing hole 51 than an intermediate position between the bearing hole 51 and the long hole 52, and the movement of the lens barrier 12 can be performed with a small movement amount of the link operation unit 14 to the barrier operation lever 11. The amount can be increased.

次に、図１４に示すように、リンク操作部１４を組付ける。上記リンク操作部１４は、図２に示すように、バリヤ操作レバー１１の背面側に連結部６１を介してバリヤ操作レバー１１と一体的に形成されている。上記リンク操作部１４は、上記バリヤ操作レバー１１との間で上記操作レバー組付部１０を挟むようにして、該操作レバー組付部１０の背面に組み付けられていて、上記バリヤ操作レバー１１と一緒にスライドする。   Next, as shown in FIG. 14, the link operation unit 14 is assembled. As shown in FIG. 2, the link operating unit 14 is formed integrally with the barrier operating lever 11 on the back side of the barrier operating lever 11 via a connecting unit 61. The link operation unit 14 is assembled to the back surface of the operation lever assembly unit 10 so as to sandwich the operation lever assembly unit 10 between the link operation unit 11 and the barrier operation lever 11. Slide.

上記リンク操作部１４は、長孔６２を備えていて、該長孔６２に上記リンク１５の突起５３を挿入することにより上記リンク１５に連繋されている。上記リンク操作部１４は、上記バリヤ操作レバー１１のスライドによって、上記リンク１５を回動させて、上記レンズバリヤ１２を上下方向にスライドさせる。   The link operation unit 14 includes a long hole 62, and is connected to the link 15 by inserting a projection 53 of the link 15 into the long hole 62. The link operation unit 14 rotates the link 15 by sliding the barrier operation lever 11 to slide the lens barrier 12 in the vertical direction.

次に、図１５に示すように、上記第１の裏当板１３の外面に第２の裏当板１６を取り付けて、上記リンク１５やリンク操作部１４の脱落を防止する。図２に示すように、上記第２の裏当板１６は、上記第１の裏当板１３と同様にレンズバリヤ１２に設けたリンク結合突起２６を突出させる長孔６５と、上記リンク操作部１４をスライド可能に収納している切欠窓６６と、を備えているとともに、バネ係止部６７を備えている。   Next, as shown in FIG. 15, the second backing plate 16 is attached to the outer surface of the first backing plate 13 to prevent the link 15 and the link operation unit 14 from falling off. As shown in FIG. 2, the second backing plate 16 includes a long hole 65 for projecting a link coupling protrusion 26 provided on the lens barrier 12 in the same manner as the first backing plate 13, and the link operating portion. 14 and a notch window 66 that slidably accommodates 14 and a spring locking portion 67.

次に、図１６に示すように、トグルバネ１７を組付ける。トグルバネ１７は、一端部１７ａが上記バネ係止部６７に係止され、他端部１７ｂが上記リンク結合突起２６に係止されている。上記トグルバネ１７は、上記レンズバリヤ１２が上記窓部７の中間位置を超えて上記窓部７を開く位置に移動して来たときに、上記レンズバリヤ１２を開く方向に付勢する。また、上記レンズバリヤ１２が中間位置を超えて上記窓部７を閉じる位置に移動して来たときに、上記レンズバリヤ１２を閉じる方向に付勢する。   Next, as shown in FIG. 16, the toggle spring 17 is assembled. The toggle spring 17 has one end 17 a locked to the spring locking portion 67 and the other end 17 b locked to the link coupling protrusion 26. The toggle spring 17 biases the lens barrier 12 in the opening direction when the lens barrier 12 moves to a position where the window portion 7 is opened beyond the intermediate position of the window portion 7. Further, when the lens barrier 12 moves to a position for closing the window portion 7 beyond the intermediate position, the lens barrier 12 is biased in a closing direction.

次に、図１７に示すように、上記第２の裏当板１６の外面に第３の裏当板１８を取り付けて、上記トグルバネ１７の脱落を防止する。   Next, as shown in FIG. 17, a third backing plate 18 is attached to the outer surface of the second backing plate 16 to prevent the toggle spring 17 from falling off.

次に、実施例の撮像装置１の作用について説明する。図１８に示すように、バリヤ操作レバー１１を操作レバー組付部１０の上端側に移動させると、図１９に示すように、レンズバリヤ１２は、リンク１５によって窓部７を閉じる位置に移動する。そして、図１７に示すように、レンズバリヤ１１は、トグルバネ１７によって窓部７を閉じた状態に維持される。   Next, the operation of the imaging apparatus 1 according to the embodiment will be described. As shown in FIG. 18, when the barrier operation lever 11 is moved to the upper end side of the operation lever assembly portion 10, the lens barrier 12 is moved to a position where the window portion 7 is closed by the link 15 as shown in FIG. 19. . Then, as shown in FIG. 17, the lens barrier 11 is maintained in a state in which the window portion 7 is closed by the toggle spring 17.

図２０に示すように、バリヤ操作レバー１１を操作レバー組付部１０の下端側に移動させると、図２１に示すように、レンズバリヤ１２は、リンク１５によって窓部７を開く位置に移動する。そして、図２２に示すように、レンズバリヤ１２は、トグルバネ１７によって窓部７を閉じた状態に維持される。   As shown in FIG. 20, when the barrier operation lever 11 is moved to the lower end side of the operation lever assembly portion 10, the lens barrier 12 moves to a position where the window portion 7 is opened by the link 15 as shown in FIG. 21. . Then, as shown in FIG. 22, the lens barrier 12 is maintained in a state in which the window portion 7 is closed by the toggle spring 17.

上記レンズバリヤ１２が窓部７を閉じている状態においては、図２３Ａに示すように、レンズバリヤ１２の第１，第３の横軸２２，２４は、第１，第２のレール溝４２，４４の上端部に位置し、第２，第４の横軸２３，２５は、第１，第２のレール溝４２，４４の略中央部に位置して、レンズバリヤ１２は、撮像レンズの光軸ＯＡに垂直な平面ＶＳに対して略1°の傾斜角度で傾斜した状態になっている。この状態からバリヤ操作レバー１１を押し下げると、レンズバリヤ１２は、第１，第２のレール溝４２，４４に沿って下降し、窓部７を半開き状態にする、図２３Ｂに示す中間位置においては、レンズバリヤ１２は、撮像レンズの光軸ＯＡに垂直な平面ＶＳに対して略２°の傾斜角度で傾斜した状態になる。更にバリヤ操作レバー１１を押し下げると、図２３Ｃに示すように、レンズバリヤ１２の第１，第３の横軸２２，２４は、第１，第２のレール溝４２，４４の略中央部に位置し、第２，第４の横軸２３，２５は、第１，第２のレール溝４２，４４の下端部に位置して、窓部７を全開した状態になる。この全開位置において、レンズバリヤ１２は、撮像レンズの光軸ＯＡに垂直な平面ＶＳに対して略３°の傾斜角度で傾斜した状態になる。そして、図２３Ａ〜図２３Ｃに至る全ての段階で、レンズバリヤ１２のバリア主部２１とフロント筐体９および第１の裏当板１３とは、常に非接触状態に保たれて、レンズバリヤ１２は、第１，第２のレール溝４２，４４に沿って円滑に移動する。   In the state where the lens barrier 12 closes the window portion 7, as shown in FIG. 23A, the first and third horizontal shafts 22 and 24 of the lens barrier 12 are connected to the first and second rail grooves 42 and 24, respectively. 44, the second and fourth horizontal axes 23, 25 are located at substantially the center of the first and second rail grooves 42, 44, and the lens barrier 12 is the light of the imaging lens. It is in a state of being inclined at an inclination angle of about 1 ° with respect to the plane VS perpendicular to the axis OA. When the barrier operation lever 11 is pushed down from this state, the lens barrier 12 is lowered along the first and second rail grooves 42 and 44, and the window portion 7 is in a half-open state. The lens barrier 12 is inclined at an inclination angle of approximately 2 ° with respect to the plane VS perpendicular to the optical axis OA of the imaging lens. When the barrier operating lever 11 is further pushed down, the first and third horizontal shafts 22 and 24 of the lens barrier 12 are positioned at substantially central portions of the first and second rail grooves 42 and 44 as shown in FIG. 23C. The second and fourth horizontal shafts 23 and 25 are located at the lower end portions of the first and second rail grooves 42 and 44 so that the window portion 7 is fully opened. In this fully open position, the lens barrier 12 is inclined at an inclination angle of approximately 3 ° with respect to the plane VS perpendicular to the optical axis OA of the imaging lens. In all stages from FIG. 23A to FIG. 23C, the barrier main portion 21 of the lens barrier 12, the front housing 9, and the first backing plate 13 are always kept in a non-contact state. Smoothly moves along the first and second rail grooves 42 and 44.

図２４は、他の実施例の模式図を示す。この実施例においては、第１，第２のレール溝４２，４４の略上半部を撮像レンズの光軸ＯＡに垂直な平面ＶＳに対して平行に形成し、略下半部を略２°の傾斜角度で傾斜させた場合を示す。この実施例は、レンズバリヤ１２が窓部７を閉じている状態において、レンズバリヤ１２は、垂直になっているので、窓部７に対して密閉性を向上させることが容易になる。また、上記実施例では、第１，第２のレール溝４２，４４の略上半部を撮像レンズの光軸ＯＡに垂直な平面ＶＳに対して所定の角度で傾斜させる場合を示したが、第１，第２のレール溝４２，４４を湾曲させてもよい。また、第１，第２のレール溝４２，４４の傾斜角度は、レンズバリヤ１２を円滑にスライドさせることができれば３°以上であってもよい。また、実施例では、レール溝４２，４４を上半部と下半部の２段に傾斜角度を変える場合を示したが、３段以上に傾斜角度を変える構成にしてもよい。   FIG. 24 shows a schematic diagram of another embodiment. In this embodiment, substantially upper half portions of the first and second rail grooves 42 and 44 are formed in parallel to the plane VS perpendicular to the optical axis OA of the imaging lens, and substantially lower half portions are approximately 2 °. The case where it inclines with the inclination angle of is shown. In this embodiment, since the lens barrier 12 is vertical in a state where the lens barrier 12 closes the window portion 7, it becomes easy to improve the sealing performance with respect to the window portion 7. In the above embodiment, the case where the substantially upper half portions of the first and second rail grooves 42 and 44 are inclined at a predetermined angle with respect to the plane VS perpendicular to the optical axis OA of the imaging lens is shown. The first and second rail grooves 42 and 44 may be curved. Further, the inclination angle of the first and second rail grooves 42 and 44 may be 3 ° or more as long as the lens barrier 12 can be smoothly slid. In the embodiment, the rail grooves 42 and 44 are shown in the case where the inclination angle is changed in two steps, ie, the upper half and the lower half, but the inclination angle may be changed in three steps or more.

撮像装置の斜視図。The perspective view of an imaging device. フロント筐体を取り外して背面側から見た斜視図。The perspective view which removed the front housing | casing and was seen from the back side. レンズバリヤの斜視図。The perspective view of a lens barrier. フロント筐体の背面図。The rear view of a front housing | casing. 図４のＡ−Ａ断面図。AA sectional drawing of FIG. 図４のＢ−Ｂ断面図。BB sectional drawing of FIG. フロント筐体上にレンズバリヤを重ね合わせた状態の平面図。The top view of the state which accumulated the lens barrier on the front housing | casing. 図７のＡ−Ａ断面図。AA sectional drawing of FIG. レンズバリヤ上に第１の裏当板を重ね合わせた状態の平面図。The top view of the state which piled up the 1st backing plate on the lens barrier. 図９のＡ−Ａ断面図。AA sectional drawing of FIG. 図９のＢ−Ｂ断面図。BB sectional drawing of FIG. レール溝の傾斜状態を示す説明図。Explanatory drawing which shows the inclination state of a rail groove. リンクを組付けた状態の平面図。The top view of the state which assembled | attached the link. バリヤ操作部およびバリヤ操作レバーを組付けた状態の平面図。The top view of the state which assembled | attached the barrier operation part and the barrier operation lever. 第２の裏当板を重ね合わせた状態の平面図。The top view of the state which piled up the 2nd backing plate. トグルバネを組付けた状態の平面図。The top view of the state which assembled | attached the toggle spring. 第３の裏当板を重ね合わせた状態の平面図。The top view of the state which piled up the 3rd backing plate. レンズバリヤを閉じている状態のフロント筐体の斜視図。The perspective view of the front housing | casing in the state which has closed the lens barrier. レンズバリヤを閉じている状態をフロント筐体の背面側から見た要部の斜視図。The perspective view of the principal part which looked at the state which closed the lens barrier from the back side of the front housing | casing. レンズバリヤを開いている状態のフロント筐体の斜視図。The perspective view of the front housing | casing of the state which has opened the lens barrier. レンズバリヤを開いている状態をフロント筐体の背面側から見た要部の斜視図。The perspective view of the principal part which looked at the state which has opened the lens barrier from the back side of the front housing | casing. レンズバリヤを開いている状態の平面図。The top view of the state which has opened the lens barrier. Ａ、Ｂ、Ｃはレンズバリヤがレール溝内を移動する様子を示す説明図。A, B, and C are explanatory views showing how the lens barrier moves in the rail groove. レール溝の傾斜状態の他の実施例を示す説明図。Explanatory drawing which shows the other Example of the inclination state of a rail groove. 従来例の斜視図。The perspective view of a prior art example. Ａはレンズバリヤで窓部を閉じた状態を示す説明図、Ｂは窓部を開いた状態を示す説明図。A is explanatory drawing which shows the state which closed the window part with the lens barrier, B is explanatory drawing which shows the state which opened the window part. 筐体の内面が撮像レンズの光軸に垂直な平面である場合を示す説明図。Explanatory drawing which shows the case where the inner surface of a housing | casing is a plane perpendicular | vertical to the optical axis of an imaging lens. 筐体の内面が撮像レンズの光軸に垂直な平面に対して傾斜面である場合の説明図。Explanatory drawing when the inner surface of a housing | casing is an inclined surface with respect to the plane perpendicular | vertical to the optical axis of an imaging lens.

符号の説明Explanation of symbols

１…撮像装置、７…撮像レンズの窓部、９…フロント筐体、１１…バリヤ操作レバー、１２…レンズバリヤ、１５…リンク、１７…トグルバネ、２１…バリヤ主部、２２〜２５…脚部、２６…リンク係合突起、３１…枠部、３２…第１のレール状突起、３３…第３のレール状突起、４２…第１のレール溝、４４…第２のレール溝。   DESCRIPTION OF SYMBOLS 1 ... Imaging device, 7 ... Window part of imaging lens, 9 ... Front housing, 11 ... Barrier operation lever, 12 ... Lens barrier, 15 ... Link, 17 ... Toggle spring, 21 ... Barrier main part, 22-25 ... Leg part , 26 ... link engagement protrusion, 31 ... frame part, 32 ... first rail-like protrusion, 33 ... third rail-like protrusion, 42 ... first rail groove, 44 ... second rail groove.

Claims (5)

撮像レンズ用の窓部の下部が撮像レンズの光軸に垂直な平面に対し傾斜する傾斜面を有し、該傾斜面に沿わせてレンズバリヤをスライドさせて上記窓部を開閉する撮像装置において、
上記レンズバリヤは、略四角形のバリヤ主部と、該バリヤ主部のバリヤスライド方向の一側部と他側部にそれぞれバリヤスライド方向と略直交する方向に延びる２本の横軸と、で形成し、上記横軸を上記傾斜面に沿って設けた傾斜状の一対のレール溝に挿入したことを特徴とする撮像装置。 In an imaging apparatus in which a lower portion of a window portion for an imaging lens has an inclined surface that is inclined with respect to a plane perpendicular to the optical axis of the imaging lens, and the lens barrier is slid along the inclined surface to open and close the window portion. ,
The lens barrier is formed by a substantially rectangular barrier main portion, and two horizontal axes extending in a direction substantially perpendicular to the barrier slide direction on one side and the other side of the barrier main portion in the barrier slide direction, respectively. An image pickup apparatus, wherein the horizontal axis is inserted into a pair of inclined rail grooves provided along the inclined surface. 上記横軸は、上記バリヤ主部の略四隅部に形成されていることを特徴とする請求項１に記載の撮像装置。   The imaging apparatus according to claim 1, wherein the horizontal axis is formed at substantially four corners of the barrier main portion. 上記一対のレール溝は、長さ方向に複数段に傾斜角度が変えられていていることを特徴とする請求項１に記載の撮像装置。   The imaging apparatus according to claim 1, wherein the pair of rail grooves have inclination angles changed in a plurality of stages in the length direction. 上記一対のレール溝は、長さ方向の略中央部で傾斜角度が変えられていて、上記撮像レンズ用の窓部に近い上段側よりも下段側の傾斜角度が大になっていることを特徴とする請求項３に記載の撮像装置。   The pair of rail grooves has a tilt angle changed at a substantially central portion in the length direction, and the tilt angle on the lower stage side is larger than the upper stage side near the window section for the imaging lens. The imaging apparatus according to claim 3. 上記上段側のレール溝は、略１°傾斜角度に形成され、下段側のレール溝は、略３°傾斜角度に形成されていることを特徴とする請求項４に記載の撮像装置。   The imaging apparatus according to claim 4, wherein the upper-side rail groove is formed at an approximately 1 ° inclination angle, and the lower-stage rail groove is formed at an approximately 3 ° inclination angle.
JP2006348846A 2006-12-26 2006-12-26 Imaging apparatus Pending JP2008158370A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57167016A (en) * 1981-04-08 1982-10-14 Nitto Kogaku Kk Camera
JPS58154924U (en) * 1982-04-10 1983-10-17 株式会社リコー Camera protective cover device
JPS58154930U (en) * 1982-04-10 1983-10-17 株式会社リコー Camera protective cover device
JPS62156919U (en) * 1986-03-26 1987-10-05
JP2005077574A (en) * 2003-08-29 2005-03-24 Sony Corp Imaging apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57167016A (en) * 1981-04-08 1982-10-14 Nitto Kogaku Kk Camera
JPS58154924U (en) * 1982-04-10 1983-10-17 株式会社リコー Camera protective cover device
JPS58154930U (en) * 1982-04-10 1983-10-17 株式会社リコー Camera protective cover device
JPS62156919U (en) * 1986-03-26 1987-10-05
JP2005077574A (en) * 2003-08-29 2005-03-24 Sony Corp Imaging apparatus

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