发明名称 |
Double-shielding type focal-plane shutter |
摘要 |
A double-shielding type focal-plane shutter has a closing blade and an opening blade for closing and opening a shutter opening to perform an exposure operation. A closing lever and an opening lever drive the closing blade and the opening blade, respectively. The closing lever has a first closing lever and a second closing lever supported coaxial with each other for undergoing pivotal movement. The second closing lever has a drive portion at a first end thereof for driving the closing blade and an engagement portion at a second end thereof. A lock lever restricts movement of the closing lever. The lock lever has a first mating engagement portion for engaging the engagement portion of the second closing lever in the predetermined position of the closing lever, and a second mating engagement portion for engaging the engagement portion of the second closing lever short of the predetermined position thereof. A set lever undergoes movement to a set position to set the closing lever, the opening lever and the lock lever to predetermined positions.
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申请公布号 |
US2001024574(A1) |
申请公布日期 |
2001.09.27 |
申请号 |
US20010817075 |
申请日期 |
2001.03.26 |
申请人 |
TANIKAWA MIYOSHI;NAKANO YOICHI;TAKAHASHI HIROSHI |
发明人 |
TANIKAWA MIYOSHI;NAKANO YOICHI;TAKAHASHI HIROSHI |
分类号 |
G03B9/36;G03B9/10;G03B9/18;(IPC1-7):G03B9/40 |
主分类号 |
G03B9/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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