Reclining device for a seat
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 6, 2004
Grant Date -
Apr 18, 2002
app pub date -
Oct 12, 2001
filing date -
Oct 13, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
It is possible to set a free zone and use a greater number of pawls in a reclining device having a plurality of pawls even if an angular range where a certain pawl is out of mesh with a ratchet and an angular range where pawls adjacent to that pawl are in mesh with the ratchet overlap with each other in a plan view, by bringing the other pawls out of mesh through an operation of bringing one specific pawl out of mesh. An unlock plate holds at least one pawl in retreat from the ratchet while a stationary disc holding the pawls and a movable disc having the ratchet form a relative rotational angle within a predetermined range. By holding the other pawls out of mesh through retreat of the pawl from the ratchet, an angular range for the operation of bringing one of the pawls out of mesh with the ratchet by means of the unlock plate, and an angular range for the operation where the adjacent pawls are brought into mesh with the ratchet are so set as to overlap with each other in a plan view.
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