JPH0431130U - - Google Patents
Info
- Publication number
- JPH0431130U JPH0431130U JP7212290U JP7212290U JPH0431130U JP H0431130 U JPH0431130 U JP H0431130U JP 7212290 U JP7212290 U JP 7212290U JP 7212290 U JP7212290 U JP 7212290U JP H0431130 U JPH0431130 U JP H0431130U
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- opening
- closing member
- closing
- drive means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Blocking Light For Cameras (AREA)
Description
第１図は、本考案の第１実施例を示すズームレ
ンズ鏡筒における要部の概略斜視図、第２図は、
本考案の第１実施例を示すズームレンズ鏡筒の断
面図であつて、上半部はワイド状態、下半部はテ
レ状態をそれぞれ示す断面図、第３図は、上記第
２図中のカム筒と固定筒の展開図、第４Ａ図〜第
４Ｃ図は、上記第２図中の−線に沿うワイド
状態における断面であつて、カバー開閉機構の動
作をそれぞれ示す断面図、第５Ａ図〜第５Ｃ図は
、上記第２図中の−線に沿うワイド状態にお
ける断面であつて、シヤツタ開閉機構の動作をそ
れぞれ示す断面図、第６図は、上記第２図中の
−線に沿うワイド状態における断面図、第７図
は、本考案の第２実施例を示すレンズ鏡筒におけ
る要部の概略斜視図、第８図は、上記第２実施例
のレンズ鏡筒の上半部を示す断面図、第９図は、
本考案の第３実施例を示すレンズ鏡筒における要
部の概略構成図である。
１０，１１０……レンズカバー（開閉部材）、
［１１，１１１……カバー駆動レバー、１２，１
１２……連結レバー、１３，１１３……カバー開
閉駆動レバー、１４，１１４……カバー開閉カム
、］（開閉部材駆動手段）、［１５，１１５……
シヤツタ開閉カム、１９，１１９……シヤツタ作
動レバー、２３，１２３……シヤツタ、２３ａ，
１２３ａ……セクタ羽根、］（シヤツタ駆動手段
）。
FIG. 1 is a schematic perspective view of the main parts of a zoom lens barrel showing a first embodiment of the present invention, and FIG.
FIG. 3 is a cross-sectional view of a zoom lens barrel showing a first embodiment of the present invention, with the upper half showing the wide-angle state and the lower half showing the telephoto state. 4A to 4C, which are developed views of the cam cylinder and fixed cylinder, are cross-sectional views in the wide state along the - line in FIG. 2, and are sectional views showing the operation of the cover opening/closing mechanism, and FIG. - Figure 5C is a cross-sectional view in the wide state taken along the - line in Figure 2 above, showing the operation of the shutter opening/closing mechanism, and Figure 6 is a cross-sectional view taken along the - line in Figure 2 above. 7 is a schematic perspective view of the main parts of the lens barrel showing the second embodiment of the present invention, and FIG. 8 is a sectional view showing the upper half of the lens barrel of the second embodiment. The cross-sectional view shown in FIG. 9 is
FIG. 7 is a schematic configuration diagram of main parts of a lens barrel showing a third embodiment of the present invention. 10,110...lens cover (opening/closing member),
[11,111...Cover drive lever, 12,1
12... Connection lever, 13, 113... Cover opening/closing drive lever, 14, 114... Cover opening/closing cam, ] (opening/closing member driving means), [15, 115...
Shutter opening/closing cam, 19, 119... Shutter operating lever, 23, 123... Shutter, 23a,
123a... sector blade,] (shutter driving means).
Claims (1)
る開位置とに変位可能に配設された開閉部材と、 撮影時に開閉されることによりフイルム面への
露光動作を行うシヤツタア手段と、 このシヤツ
タ手段を開状態にする第１動作領域と閉状態に保
持する第２動作領域とを有し、駆動源の駆動力に
より該第１、第２動作領域間を往復動されること
によつて上記シヤツタ手段を開閉するシヤツタ駆
動手段と、 このシヤツタ駆動手段に連結されており、該シ
ヤツタ駆動手段が第２動作領域にある場合にのみ
、上記駆動源の駆動力を伝達されて上記開閉部材
を閉位置に変位させる開閉部材駆動手段と、 を具備したことを特徴とするレンズ鏡筒。[Scope of Claim for Utility Model Registration] An opening/closing member disposed movably between a closed position that covers the front of the photographic lens and an open position that exposes it, and an opening/closing member that is opened and closed during photographing to expose the film surface. The shutter means has a first operation region for opening the shutter means and a second operation region for holding the shutter means in a closed state, and the shutter means can be reciprocated between the first and second operation regions by the driving force of a drive source. a shutter drive means that opens and closes the shutter means by opening and closing the shutter means; and a shutter drive means that is connected to the shutter drive means and transmits the driving force of the drive source only when the shutter drive means is in a second operating region. A lens barrel comprising: opening/closing member driving means for displacing the opening/closing member to a closed position when the opening/closing member is moved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7212290U JPH0431130U (en) | 1990-07-06 | 1990-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7212290U JPH0431130U (en) | 1990-07-06 | 1990-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0431130U true JPH0431130U (en) | 1992-03-12 |
Family
ID=31609778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7212290U Pending JPH0431130U (en) | 1990-07-06 | 1990-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431130U (en) |
-
1990
- 1990-07-06 JP JP7212290U patent/JPH0431130U/ja active Pending
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