Plate spring for voice coil motor
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United States of America Patent
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-
N/A
Issued Date -
Jul 3, 2008
app pub date -
Dec 28, 2006
filing date -
Dec 28, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A plate spring for voice coil motor includes a flat plate having a central opening and provided around the central opening with an even number of identically shaped slits. The slits are so bent and staggered on the flat plate that the flat plate is divided into an inner movable portion and an outer fixed portion, which are connected via an even number of three-section linear elastically bendable portions. When the inner movable portion is subjected to an external force, the elastically bendable portions are elastically bent to allow the inner movable portion to move forward or backward relative to the outer fixed portion without sideward inclining; and when the external force is released, the inner movable portion is automatically and quickly returned to an original position by an accumulated restoring force of the elastically bendable portions.
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Family
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