Contact mechanism having movable contact pieces, trigger switch and electric tool with same
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United States of America Patent
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Mar 13, 2018
Issued Date -
N/A
app pub date -
Aug 6, 2014
filing date -
Feb 14, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A pair of open/close and current-passing movable contact pieces is supported on a movable contact terminal such that the pair is rotatable along with the reciprocation of an operating element. An open/close movable contact is mounted on the open/close movable contact piece and is rotatably biased by a spring member. A current-passing movable contact is mounted on the current-passing movable contact piece. By moving the operating element, a restriction imposed on a position of the operating element is released so that the open/close movable contact piece is rotated by a spring force of the spring member whereby the open/close movable contact is brought into pressure contact with an open/close fixed contact mounted on a fixed contact terminal. The current-passing movable contact piece is rotated by the operating element so that the current-passing movable contact is brought into pressure contact with a current-passing fixed contact mounted on the fixed contact terminal.
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