Shutter for camera

Shutter for camera

A camera shutter has a base plate provided with a shutter opening. Sectors are mounted on the base plate to undergo movement to open and close the shutter opening. A driving lever has a driving pin that extends through through-holes in the sectors for operating the sectors. One of the through-holes...

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Hauptverfasser: Yamaga, Munetaka, Mizukami, Hiroyuki, Oishi, Seiichi
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Sprache:eng
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creator Yamaga, Munetaka
Mizukami, Hiroyuki
Oishi, Seiichi
description A camera shutter has a base plate provided with a shutter opening. Sectors are mounted on the base plate to undergo movement to open and close the shutter opening. A driving lever has a driving pin that extends through through-holes in the sectors for operating the sectors. One of the through-holes is configured so that a gap is formed between an edge of the through-hole and the driving pin in the direction of movement of the driving pin. As the driving pin moves to drive the sectors to close the shutter opening, the movement of the driving pin is abruptly stopped when the sectors fully close the shutter opening thereby causing the driving pin to rebound. The rebounding motion is not transmitted to the sector in which the gap is formed, and inertia permits further movement of the sector in the closing direction over a distance equal to the gap. This maintains the sectors in overlapping relation and prevents reexposure when the shutter is in a fully closed state.
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Sectors are mounted on the base plate to undergo movement to open and close the shutter opening. A driving lever has a driving pin that extends through through-holes in the sectors for operating the sectors. One of the through-holes is configured so that a gap is formed between an edge of the through-hole and the driving pin in the direction of movement of the driving pin. As the driving pin moves to drive the sectors to close the shutter opening, the movement of the driving pin is abruptly stopped when the sectors fully close the shutter opening thereby causing the driving pin to rebound. The rebounding motion is not transmitted to the sector in which the gap is formed, and inertia permits further movement of the sector in the closing direction over a distance equal to the gap. This maintains the sectors in overlapping relation and prevents reexposure when the shutter is in a fully closed state.</abstract><oa>free_for_read</oa></addata></record>
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title Shutter for camera
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