Liquid storage container and liquid ejection apparatus

Patent metadata

Field	Value
Publication number	US-10093105-B2
Application number	US-201715489445-A
Country	US
Kind code	B2
Filing date	Apr 17, 2017
Priority date	Apr 22, 2016
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

To provide a liquid storage container equipped with a plug member that can prevent leakage of a liquid from the liquid storage container and can be opened without causing scatter of the liquid, and a liquid ejection apparatus equipped with the liquid storage container. For the purpose, at least one of a connection part of the convex part with the cover part and an apical part of the convex part most apart from the connection part is provided offset from the centroid of the cover part, seen from a direction orthogonal to an opening surface of a supply port in a state that the plug member is mounted on a supply port of the liquid storage container.

First claim

What is claimed is:

1. A liquid storage container, comprising a storage chamber for storing a liquid, a supply port constructed to supply a liquid to the storage chamber, and a cover member mounted detachably on the supply port, wherein
the cover member includes a main body part lying outside of the storage chamber and the supply port in a state mounted on the supply port;
the main body part includes a cover part covering an opening surface of the supply port in the mounted state of the cover member, a support part constructed to connect the cover part with another member with the cover member removed from the supply port, and a convex part protruding from the cover part; and
the convex part is arranged only on one side of the cover part and the support part is arranged on the other side of the cover part relative to a straight line intersecting orthogonally with a straight line passing a centroid of the cover part and connecting the centroid and the support part, seen from a direction intersecting orthogonally with the opening surface in the mounted state of the cover member.

2. The liquid storage container according to claim 1 , wherein the convex part protrudes upward from an upper face of the cover part along the opening surface, in the mounted state of the cover member.

3. The liquid storage container according to claim 1 , wherein the convex part protrudes toward the outside of the cover part from a side face intersecting approximately orthogonally with the opening surface of the cover part, in the mounted state of the cover member.

4. The liquid storage container according to claim 3 , wherein the main body part includes a plurality of the convex parts.

5. The liquid storage container according to claim 3 , wherein a groove is formed on the side face of the cover part.

6. The liquid storage container according to claim 1 , wherein the support part is formed integrally with the cover part.

7. The liquid storage container according to claim 1 , wherein the support part is formed as a separate body from the cover part.

8. The liquid storage container according to claim 1 , wherein the cover member includes a plug part inserted in the supply port to plug up the supply port, a protruding part is provided for the plug part, and the protruding part plugs up the supply port.

9. The liquid storage container according to claim 1 , wherein a part of the convex part is arranged on an extension line of the straight line connecting the centroid and the support part, seen from the direction intersecting orthogonally with the opening surface in the mounted state of the cover member.

10. The liquid storage container according to claim 1 , wherein the convex part is arranged at an end part of the cover part on the one side, and the support part is arranged at an end part of the cover part on the other side, seen from the direction intersecting orthogonally with the opening surface in the mounted state of the cover member.

11. The liquid storage container according to claim 1 , wherein the convex part is a pinch part to be used when removing the cover member.

12. The liquid storage container according to claim 1 , wherein the convex part is not arranged on the centroid of the cover part.

13. The liquid storage container according to claim 1 , wherein the cover member is a cap type member that does not have a plug part.

14. A liquid ejection apparatus, comprising:
a liquid ejection head that ejects liquid;
a liquid storage container constructed to store a liquid supplied to the liquid ejection head, including a storage chamber for storing a liquid and a supply port constructed to supply a liquid to the storage chamber from an outside; and
a cover member that mounts detachably on the supply port, wherein
the cover member includes a main body part lying outside of the storage chamber and the supply port in a state mounted on the supply port;
the main body part includes a cover part covering an opening surface of the supply port in the mounted state of the cover member, a support part constructed to connect the cover part with another member with the cover member removed from the supply port, and a convex part protruding from the cover part; and
the convex part is arranged only on one side of the cover part and the support part is arranged on the other side of the cover part relative to a straight line intersecting orthogonally with a straight line passing a centroid of the cover part and connecting the centroid and the support part, seen from a direction intersecting orthogonally with the opening surface in the mounted state of the cover member.

15. The liquid ejection apparatus according to claim 14 , wherein the convex part protrudes toward the outside of the cover part from a side face intersecting approximately orthogonally with the opening surface of the cover part, in the mounted state of the cover member.

16. The liquid ejection apparatus according to claim 14 , wherein the support part is formed as a separate body from the cover part.

17. The liquid ejection apparatus according to claim 14 , wherein a part of the convex part is arranged on an extension line of the straight line connecting the centroid and the support part, seen from the direction intersecting orthogonally with the opening surface in the mounted state of the cover member.

18. The liquid ejection apparatus according to claim 14 , wherein the convex part is a pinch part to be used when removing the cover member.

19. The liquid ejection apparatus according to claim 14 , wherein the convex part is not arranged on the centroid of the cover part.

20. The liquid ejection apparatus according to claim 14 , wherein the cover member is a cap type member that does not have a plug part.

21. A liquid ejection apparatus, comprising:
a liquid ejection head that ejects liquid;
a storage chamber for storing a liquid supplied to the liquid ejection head;
a supply port constructed to supply a liquid to the storage chamber; and
a cover member mounted detachably on the supply port, wherein
the cover member includes a main body part lying outside of the storage chamber and the supply port in a state mounted on the supply port;
the main body part includes a cover part covering an opening surface of the supply port in the mounted state of the cover member, and a convex part protruding from the cover part; and
an apical part of the convex part most apart from a connection part of the convex part connected with the cover part extends along a direction inclined relative to the opening surface in the mounted state of the cover member.

22. The liquid ejection apparatus according to claim 21 , wherein the convex part protrudes upward from an upper face of the cover part along the opening surface in the mounted state of the cover member.

23. The liquid ejection apparatus according to claim 22 , wherein the connection part is provided in a position including the centroid of the upper face of the cover part.

24. The liquid ejection apparatus according to claim 22 , wherein the connection part is provided offset in an opposite direction to a direction running along the upper face from the connection part toward the apical part, relative to the centroid of the upper face of the cover part.

25. The liquid ejection apparatus according to claim 21 , wherein at least a part of the connection part is provided in a position lying outside of a periphery of the supply port in the mounted stat

Assignees

• Canon Kk

Inventors

• Shimamura Ryo
• Shiba Akira
• Yoshii Kazuya
• Ikebe Norihiro
• Miyashita Takeho
• Yamamuro Tomoki
• Arai Atsushi
• Ohira Masatoshi
• Orihara Tatsuaki
• Okuhara Hirofumi
• Matsushita Kazumasa
• Furuya Misato

Classifications

• B41J2/17553 Primary

  Outer structure · CPC title

• B41J2/17509

  Whilst mounted in the printer · CPC title

• B41J2/1752

  Mounting within the printer · CPC title

• B41J29/13

  Cases or covers · CPC title