Loose-leaf binder
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United States of America Patent
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Jun 13, 2017
Grant Date -
N/A
app pub date -
Jun 2, 2016
filing date -
Jun 2, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A loose-leaf binder comprises a back and a loose-leaf coil. The back comprises a lower sheet and an upper sheet. Each side of the back is formed with a track having a downward opening. At least one end of the back is formed with an open end portion. Each lateral side edge of the lower sheet is formed with a slightly upwardly projecting flange. The lower sheet is formed with at least one engaging slot corresponding to the open end portion of the flange. The loose-leaf coil to be selectively disposed below the back is formed with continuous C-shaped portions by bending a wire. Each end of each C-shaped portion is formed with a track section to slide in the track of the back. The track section can be selectively engaged and restricted within the engaging slot of the lower sheet of the back.
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