JPH0181639U - - Google Patents
Info
- Publication number
- JPH0181639U JPH0181639U JP1987176668U JP17666887U JPH0181639U JP H0181639 U JPH0181639 U JP H0181639U JP 1987176668 U JP1987176668 U JP 1987176668U JP 17666887 U JP17666887 U JP 17666887U JP H0181639 U JPH0181639 U JP H0181639U
- Authority
- JP
- Japan
- Prior art keywords
- cam
- cam surface
- shutter
- stepping motor
- change
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 2
- 230000011514 reflex Effects 0.000 description 1
Landscapes
- Shutters For Cameras (AREA)
Description
図は本考案の一実施例を示すもので、第１図は
一眼レフカメラの構成図、第２図はシヤツタ羽根
の正面図、第３図ａ，ｂ，ｃはシヤツタ羽根駆動
部の正面図、第４図は動作説明図である。
１４……シヤツタ羽根、１５……ステツピング
モータ、２０……駆動部材としてのレバー、２６
……カム部材としてのカム環、３２，３３……第
１および第２のカム面。
The figures show one embodiment of the present invention. Figure 1 is a configuration diagram of a single-lens reflex camera, Figure 2 is a front view of the shutter blade, and Figures 3 a, b, and c are front views of the shutter blade drive unit. , FIG. 4 is an explanatory diagram of the operation. 14... Shutter blade, 15... Stepping motor, 20... Lever as a driving member, 26
...Cam ring as a cam member, 32, 33...First and second cam surfaces.
Claims (1)
開閉制御するレンズシヤツタにおいて、 上記ステツピングモータに連結されかつ変化率
の大きい第１のカム面およびこの第１のカム面に
連なつて逆方向に変化し変化率の小さい第２のカ
ム面を有するカム部材と、 このカム部材の第１および第２のカム面によつ
て作動され上記シヤツタ羽根を開閉作動する駆動
部材と、 を備えたことを特徴とするレンズシヤツタ。[Claims for Utility Model Registration] In a lens shutter in which shutter blades are driven and opened/closed by a stepping motor, a first cam surface connected to the stepping motor and having a large rate of change, and a first cam surface connected to the first cam surface. a cam member having a second cam surface that changes in the opposite direction and has a small rate of change; and a drive member that is actuated by the first and second cam surfaces of the cam member to open and close the shutter blade. A lens shutter characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987176668U JPH0736352Y2 (en) | 1987-11-19 | 1987-11-19 | Lens shutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987176668U JPH0736352Y2 (en) | 1987-11-19 | 1987-11-19 | Lens shutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0181639U true JPH0181639U (en) | 1989-05-31 |
| JPH0736352Y2 JPH0736352Y2 (en) | 1995-08-16 |
Family
ID=31468388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987176668U Expired - Lifetime JPH0736352Y2 (en) | 1987-11-19 | 1987-11-19 | Lens shutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0736352Y2 (en) |
-
1987
- 1987-11-19 JP JP1987176668U patent/JPH0736352Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0736352Y2 (en) | 1995-08-16 |