Ink housing device reliably preventing ink leakage
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsHikaru Kaga, Katsunori Nishida
Life of this patent
Estimating the term…
Abstract
An ink accommodating pouch for accommodating ink is produced in the following manner. Two sheets formed of a synthetic resinous material are prepared. Four edges of both the sheets overlap each other and are oriented in the same direction. Three of the aligned edges are fused completely by heat, forming junctions. A resultant product is turned inside out so that the junctions of the three edges are turned inward and protrude inside a pouch. An ink extraction outlet is sealed to the remaining open edge. When the pouch is filled with ink, When the ink accommodating pouch 60 is filled with ink, the sheets near the junctions swell to a protruding curved shape on the outside of the pouch, enabling the pouch to accommodate an increased amount of ink.
Claims13
An ink accommodating device comprising:
- a casing having sidewalls, one of the sidewalls being formed with a mounting hole;
- an ink accommodating pouch accommodated in the casing;
- an ink outlet provided to the ink accommodating pouch, the ink outlet being formed with a through hole;
- and
- a sealing member formed of a resilient material, the sealing member sealing off the through hole of the ink outlet, wherein
- the sealing member is engaged inside the mounting hole by force fitting the sealing member into the mounting hole and one of the sidewalls is formed with a protrusion on an inner periphery of the mounting hole, the protrusion engaging an outer periphery of the sealing member.
An ink accommodating pouch comprising:
- a pouch;
- and
- an ink outlet provided to the pouch, wherein
- the pouch is formed of a single sheet in a cylindrical shape whose edges on open ends sealed to form a junction, and the ink outlet is attached to a surface of the single sheet at position other than the junction.
ink accommodating pouch comprising:
- a pouch having an upper sheet portion and a lower sheet portion both formed of a synthetic resin;
- and
- an ink outlet provided to the pouch, wherein
- the upper sheet portion has an edge, and the lower sheet portion has an edge attached to the edge of the upper sheet portion to form a junction, the junction protruding inward of the pouch.
Dependencies are inferred from the claim text.