Ink refill container

Abstract

To reduce dripping of ink when an ink replenishing container is removed from an ink inlet channel member.SOLUTION: An ink replenishing container which communicates with an ink tank of a printer, and replenishes ink to the ink tank via an ink inlet channel member includes: a container body; an ink outlet formation part having a cylindrical part; a spring valve having a valve body fitted in the cylindrical part, and a spring for urging the valve body toward an ink outlet in a direction of a central axis of the ink outlet; and a seal member fitted in the cylindrical part and having a seal end contacting the valve body in a valve-closed state. The seal member has a cylindrical inner peripheral wall, and an elastic film part extending from the inner peripheral wall toward the center, and the elastic film part is formed with a slit-like gap passing through a central part including the center.SELECTED DRAWING: Figure 10

Claims

1. An ink supply container that supplies ink to a printer's ink tank via an ink inlet channel member having multiple channels separated by partitions, wherein the ink supply container communicates with the ink tank of the printer and supplies ink to the ink tank, A container body configured to hold ink, An ink outlet forming section connected to the container body and having a cylindrical portion with an ink outlet, A spring valve comprising a valve body mounted within the cylindrical portion and a spring that biases the valve body toward the ink outlet in the direction of the central axis of the ink outlet, wherein the valve body is pressed in the opposite direction to the biasing direction by the ink inlet flow path member to open the valve, and the valve is closed when the ink inlet flow path member is withdrawn from the ink outlet, A sealing member is installed inside the cylindrical portion and has a sealing end that contacts the valve body when the valve is closed, Equipped with, The sealing member has a cylindrical inner circumferential wall centered on the central axis and an elastic membrane portion extending from the inner circumferential wall toward the center, wherein the elastic membrane portion has a plurality of slit-shaped gaps extending radially from the central part including the center toward the inner circumferential wall. Ink refill container.

2. An ink supply container for supplying ink to an ink tank of a printer via an ink inlet channel member having a plurality of channels separated by a partition, wherein the ink is connected to the ink tank of the printer, and ink is supplied to the ink tank via the ink inlet channel member having a plurality of channels separated by a partition, A container body configured to hold ink, An ink outlet forming section connected to the container body and having a cylindrical portion with an ink outlet, A spring valve comprising a valve body mounted within the cylindrical portion and a spring that biases the valve body toward the ink outlet in the direction of the central axis of the ink outlet, wherein the valve body is pressed in the opposite direction to the biasing direction by the ink inlet flow path member to open the valve, and the valve is closed when the ink inlet flow path member is withdrawn from the ink outlet, A sealing member is installed inside the cylindrical portion and has a sealing end that contacts the valve body when the valve is closed, Equipped with, The sealing member has a cylindrical inner circumferential wall centered on the central axis and an elastic membrane portion extending from the inner circumferential wall toward the center, and a slit-shaped gap is formed in the elastic membrane portion, passing through the central part including the center. In the closed valve state, the elastic membrane portion is positioned on the container body side in the direction of the central axis from the base of the inner circumferential wall side, and is formed to have an arc-shaped cross-section, in an ink supply container.

3. An ink supply container for supplying ink to an ink tank of a printer via an ink inlet channel member having a plurality of channels separated by a partition, wherein the ink is connected to the ink tank of the printer, and ink is supplied to the ink tank via the ink inlet channel member having a plurality of channels separated by a partition, A container body configured to hold ink, An ink outlet forming section connected to the container body and having a cylindrical portion with an ink outlet, A spring valve comprising a valve body mounted within the cylindrical portion and a spring that biases the valve body toward the ink outlet in the direction of the central axis of the ink outlet, wherein the valve body is pressed in the opposite direction to the biasing direction by the ink inlet flow path member to open the valve, and the valve is closed when the ink inlet flow path member is withdrawn from the ink outlet, A sealing member is installed inside the cylindrical portion and has a sealing end that contacts the valve body when the valve is closed, Equipped with, The sealing member has a cylindrical inner circumferential wall centered on the central axis and an elastic membrane portion extending from the inner circumferential wall toward the center, and a slit-shaped gap is formed in the elastic membrane portion, passing through the central part including the center. The sealing member has a sealing projection that contacts and seals the outer peripheral surface of the ink inlet channel member, and the sealing projection is located between the base of the elastic membrane on the inner peripheral wall side and the tip of the ink outlet in the direction of the central axis, in an ink supply container.

4. An ink supply container for supplying ink to an ink tank of a printer via an ink inlet channel member having a plurality of channels separated by a partition, wherein the ink is connected to the ink tank of the printer, and ink is supplied to the ink tank via the ink inlet channel member having a plurality of channels separated by a partition, A container body configured to hold ink, An ink outlet forming section connected to the container body and having a cylindrical portion with an ink outlet, A spring valve comprising a valve body mounted within the cylindrical portion and a spring that biases the valve body toward the ink outlet in the direction of the central axis of the ink outlet, wherein the valve body is pressed in the opposite direction to the biasing direction by the ink inlet flow path member to open the valve, and the valve is closed when the ink inlet flow path member is withdrawn from the ink outlet, A sealing member is installed inside the cylindrical portion and has a sealing end that contacts the valve body when the valve is closed, Equipped with, The sealing member has a cylindrical inner circumferential wall centered on the central axis and an elastic membrane portion extending from the inner circumferential wall toward the center, and a slit-shaped gap is formed in the elastic membrane portion, passing through the central part including the center. An ink supply container having a textured surface or perforations on the elastic membrane portion that can promote capillary action.

5. An ink supply container according to any one of claims 1 to 4, An ink supply container in which the radial length from the base of the elastic membrane portion on the inner circumferential wall side to the center of the slit-shaped gap is formed to be shorter than the length from the base of the elastic membrane portion to the seal end in the direction of the central axis.

6. An ink supply container according to any one of claims 1 to 4, An ink supply container in which, in the open valve state, the cylindrical portion is formed such that a gap is provided between the inner surface of the cylindrical portion and the outer surface of the ink inlet flow path member into which the elastic membrane portion enters.

7. An ink supply container according to any one of claims 1 to 4, An ink supply container in which, in the open valve state, the base of the elastic membrane portion on the inner circumferential wall side contacts and seals the outer circumferential side surface of the ink inlet flow path member.

8. An ink supply container according to any one of claims 1 to 4, An ink supply container in which the radial length of the slit-shaped gap from the center to the end is formed to be shorter than the radius from the axis of the central axis of the ink inlet flow channel member to the outer circumference.

9. An ink supply container that supplies ink to a printer's ink tank via an ink inlet channel member having multiple channels separated by partitions, wherein the ink supply container communicates with the ink tank of the printer and supplies ink to the ink tank, A container body configured to hold ink, An ink outlet forming section connected to the container body and having a cylindrical portion with an ink outlet, A spring valve comprising a valve body mounted within the cylindrical portion and a spring that biases the valve body toward the ink outlet in the direction of the central axis of the ink outlet, wherein the valve body is pressed in the opposite direction to the biasing direction by the ink inlet flow path member to open the valve, and the valve is closed when the ink inlet flow path member is withdrawn from the ink outlet, A sealing member is installed inside the cylindrical portion and has a sealing end that contacts the valve body when the valve is closed, Equipped with, The sealing member is made of an elastic material and has a plurality of wing-shaped portions separated by a plurality of slit-shaped gaps that extend radially from the center when viewed from the ink outlet side in the direction of the central axis. Ink refill container.

10. An ink supply container according to claim 9, An ink supply container wherein the wing-shaped portion is formed such that the radial length from the base of the wing-shaped portion to the tip on the central side is shorter than the length of the sealing member from the base of the wing-shaped portion to the sealing end in the direction of the central axis.

11. An ink supply container according to claim 9, An ink supply container wherein, in the closed valve state, the tip on the central side is located on the container body side of the base of the wing-shaped portion in the direction of the central axis, and the cross-sectional shape is formed to be arc-shaped.

12. An ink supply container according to claim 9, An ink supply container in which, in the open valve state, the cylindrical portion is formed such that a gap is provided between the inner surface of the cylindrical portion and the outer surface of the ink inlet flow path member into which the wing-shaped portion enters.

13. An ink supply container according to claim 9, An ink supply container in which, in the open valve state, the base of the wing-shaped portion contacts and seals the outer peripheral surface of the ink inlet flow path member.

14. An ink supply container according to claim 9, An ink supply container in which the length of the slit-shaped gap from its center to its edge in the radial direction is formed to be shorter than the radius from the axis of the central axis of the ink inlet flow channel member to its outer circumference.

15. An ink supply container according to claim 9, The sealing member has a sealing projection that contacts and seals the outer peripheral surface of the ink inlet channel member, and the sealing projection is located between the base of the wing-shaped portion and the tip of the ink outlet in the direction of the central axis, in an ink supply container.

16. An ink supply container according to claim 9, An ink refill container having a fin-like portion that is textured or perforated to promote capillary action.

17. An ink supply container according to claim 9, Furthermore, it is provided with a cap capable of covering the ink outlet, and the cap has a projection that presses against the valve body when the cap is closed to open the valve. The sealing member is an ink supply container having a through hole in its center, into which the projection is inserted when the cap is closed.

18. An ink supply container according to claim 9, wherein the ink inlet channel member has a cylindrical circumferential wall, and the tip of the circumferential wall on the ink inlet side has a step that is concave in the axial direction, The sealing member is an ink supply container in which the width of the base of the wing-shaped portion is greater than the width of the step.

19. An ink supply container according to claim 9, wherein the ink inlet channel member has a cylindrical circumferential wall, and the tip of the circumferential wall on the ink inlet side has a step that is concave in the axial direction, The sealing member is formed such that the width at the base of the wing-shaped portion is smaller than the width of the step, in an ink supply container.

20. An ink supply container that supplies ink to a printer's ink tank via an ink inlet channel member having multiple channels separated by partitions, wherein the ink supply container communicates with the ink tank of the printer and supplies ink to the ink tank, A container body configured to hold ink, An ink outlet forming section connected to the container body and having a cylindrical portion with an ink outlet, A spring valve comprising a valve body mounted within the cylindrical portion and a spring that biases the valve body toward the ink outlet in the direction of the central axis of the ink outlet, wherein the valve body is pressed in the opposite direction to the biasing direction by the ink inlet flow path member to open the valve, and the valve is closed when the ink inlet flow path member is withdrawn from the ink outlet, A sealing member is installed inside the cylindrical portion and contacts the valve body to seal when the valve is closed, Equipped with, An ink supply container wherein the sealing member has a sealing projection that contacts and seals the outer peripheral surface of the ink inlet flow path member when the valve is open, and when transitioning from the open state to the closed state, the seal between the sealing projection and the ink inlet flow path member is released, and then the contact between the valve body and the ink inlet flow path member is released.

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