Button
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United States of America Patent
Stats
-
Apr 13, 2010
Grant Date -
Apr 2, 2009
app pub date -
Sep 30, 2008
filing date -
Oct 1, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A button is disclosed that includes a die cast button body for which a secondary or an additional process (e.g., a squeeze process) is unnecessary and for which a degree of freedom for design of the upper surface center of the button body can increase. A shank of a fastening member is provided with a shank distal end having a small diameter, a shank proximal portion having a larger diameter than that of the shank distal end, and a shank stepped portion. A shank receiving space of the button body for receiving the shank is provided with a shank receiving small diameter portion which receives the shank distal end and which has an axial length larger than that of the distal end, a shank receiving large diameter portion which receives a distal side part of the shank proximal portion, and a shank receiving stepped portion. The shank receiving stepped portion has a stepped portion edge boundary with the small diameter portion. When the button is attached to cloth, the shank receiving stepped portion bumps into the shank stepped portion, causing the stepped portion edge to stick into the shank proximal portion.
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