Paper binding device

A paper binding device configured to hold a plurality of paper sheets together utilizing aligned holes formed in each of the plurality of sheets, the paper binding device comprising:

• an injection molded polymer first part, comprising:
• a first elongated strip elongated along a first longitudinal direction;
• wherein a first cross-section through the first elongated strip perpendicular to the first longitudinal direction has a first outer perimeter shape which includes at least one flat first surface;
• a plurality of bendable extensions extending from the at least one flat first surface, wherein the plurality of bendable extensions are spaced along the first longitudinal direction;
• wherein each of the plurality of bendable extensions comprises:
• two cylindrically-shaped posts disposed adjacent to one another and separated by a gap, where the two cylindrically-shaped posts are connected at each of a proximal end to the at least one flat first surface, and where the two cylindrically-shaped posts extend perpendicular from the at least one flat first surface to each of a respective distal end;
• wherein the two cylindrically-shaped posts define an alignment line passing through a center of each of the two cylindrically-shaped posts, wherein the alignment line is perpendicular to the first longitudinal direction;
• a plurality of bridges connecting the two cylindrically-shaped posts along the gap, wherein each bridge of the plurality of bridges is spaced between the proximal end and distal end of the two cylindrically-shaped posts;
• wherein the plurality of bridges comprises at least three bridges;
• wherein the first elongated strip and plurality of bendable extensions are integrally formed as one continuous material;
• wherein the plurality of bendable extensions comprises at least three bendable extensions
• an injection molded polymer second part comprising:
• a second elongated strip elongated along a second longitudinal direction;
• wherein a second cross-section through the second elongated strip perpendicular to the second longitudinal direction has a second outer perimeter shape which includes at least one flat second surface;
• a plurality of through apertures disposed from the at least one flat second surface through to an opposite surface, wherein the plurality of through apertures are matched to the plurality of bendable extensions when the first and second parts are mutually aligned to another along the same first and second longitudinal directions;
• and
• a plurality of elongated channels openly formed in the opposite surface along the second longitudinal direction, wherein each elongated channel of the plurality of elongated channels starts at its respective through aperture and extends to a respective channel end;
• wherein each elongated channel comprises a channel opening along the opposite surface which is smaller than a widest portion of the channel disposed within the second elongated strip;
• and
• wherein when the at least one flat first surface is disposed facing the at least one flat second surface and the plurality of bendable extensions are fitted through the plurality of through apertures, the plurality of bendable extensions are configured to be manipulated by a user to bend and lock into the plurality of elongated channels.

A paper binding device configured to hold a plurality of paper sheets together utilizing aligned holes formed in each of the plurality of sheets, the paper binding device comprising:

• an injection molded polymer first part, comprising:
• a first elongated strip elongated along a first longitudinal direction;
• wherein a first cross-section through the first elongated strip perpendicular to the first longitudinal direction has a first outer perimeter shape which includes at least one flat first surface;
• a plurality of bendable extensions extending from the at least one flat first surface, wherein the plurality of bendable extensions are spaced along the first longitudinal direction;
• wherein each of the plurality of bendable extensions comprises:
• two cylindrically-shaped posts disposed adjacent to one another and separated by a gap, where the two cylindrically-shaped posts are connected at each of a proximal end to the at least one flat first surface, and where the two cylindrically-shaped posts extend perpendicular from the at least one flat first surface to each of a respective distal end;
• wherein the two cylindrically-shaped posts define an alignment line passing through a center of each of the two cylindrically-shaped posts, wherein the alignment line is perpendicular to the first longitudinal direction;
• a plurality of bridges connecting the two cylindrically-shaped posts along the gap, wherein each bridge of the plurality of bridges is spaced between the proximal end and distal end of the two cylindrically-shaped posts;
• wherein the first elongated strip and plurality of bendable extensions are integrally formed as one continuous material;
• an injection molded polymer second part comprising:
• a second elongated strip elongated along a second longitudinal direction;
• wherein a second cross-section through the second elongated strip perpendicular to the second longitudinal direction has a second outer perimeter shape which includes at least one flat second surface;
• a plurality of through apertures disposed from the at least one flat second surface through to an opposite surface, wherein the plurality of through apertures are matched to the plurality of bendable extensions when the first and second parts are mutually aligned to another along the same first and second longitudinal directions;
• and
• a plurality of elongated channels openly formed in the opposite surface along the second longitudinal direction, wherein each elongated channel of the plurality of elongated channels starts at its respective through aperture and extends to a respective channel end;
• wherein each elongated channel comprises a channel opening along the opposite surface which is smaller than a widest portion of the channel disposed within the second elongated strip;
• wherein when the at least one flat first surface is disposed facing the at least one flat second surface and the plurality of bendable extensions are fitted through the plurality of through apertures, the plurality of bendable extensions are configured to be manipulated by a user to bend and lock into the plurality of elongated channels;
• and
• a third part comprising a third elongated strip elongated along a third longitudinal direction, wherein the third part is configured to slidably engage with the second part and cover the plurality of elongated channels.