Liquid ejecting device and head with flexible member for supplying liquid from a main tank

Patent metadata

Field	Value
Publication number	US-9981478-B2
Application number	US-201615294442-A
Country	US
Kind code	B2
Filing date	Oct 14, 2016
Priority date	Oct 30, 2015
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

A downsized liquid ejecting device is provided. To do so, the liquid ejecting device includes a liquid container, a head provided on a carriage and having a liquid containing unit capable of storing liquid thereinside, and a liquid ejecting unit ejecting liquid, and a flexible member that connects between the liquid container and the liquid containing unit and supplies the liquid stored inside the liquid container to the liquid containing unit, and a concave portion is formed on an outer wall surface of the liquid containing unit, and a projected portion that is inserted to the flexible member is formed inside the concave portion.

First claim

What is claimed is:

1. A liquid ejecting device comprising:
a liquid container that can store liquid thereinside;
a head that is provided on a carriage and includes a liquid containing unit capable of storing liquid thereinside, and a liquid ejecting unit ejecting liquid; and
a flexible member that supplies the liquid stored in the liquid container to the liquid containing unit, the flexible member having a flow passage connecting member, the flow passage connecting member having an inserting port and a flow-passage-connecting-member flow passage, wherein a concave portion that is concave in a direction to an inside of the liquid containing unit is formed on an outer wall surface of the liquid containing unit, and a projected portion that is projected in a direction to an outside of the liquid containing unit from a bottom surface of the concave portion and is inserted to the inserting port is formed inside the concave portion, and, inside the projected portion, there is no liquid flow path from the flow passage connecting member to the liquid container.

2. The liquid ejecting device according to claim 1 , wherein the liquid containing unit has a case and a cover member, and the outer wall surface of the liquid containing unit on which the concave portion is formed is an outer wall surface of the cover member.

3. The liquid ejecting device according to claim 1 , wherein the projected portion is not projected from a top surface of the outer wall surface of the liquid containing unit.

4. The liquid ejecting device according to claim 1 , wherein the projected portion is projected from a top surface of the outer wall surface of the liquid containing unit.

5. The liquid ejecting device according to claim 4 , wherein the projected portion has a height projected from the top surface of the outer wall surface of the liquid containing unit, the height being 20% or more and 70% or less of a height of the projected portion in the concave portion.

6. The liquid ejecting device according to claim 4 , wherein the projected portion has a height projected from the top surface of the outer wall surface of the liquid containing unit, the height being 30% or more and 50% or less of a height of the projected portion in the concave portion.

7. The liquid ejecting device according to claim 1 , wherein a holding member that can hold liquid is enclosed inside the liquid containing unit, and the bottom surface of the concave portion presses the holding member.

8. The liquid ejecting device according to claim 1 , wherein, in a case where the concave portion is a first concave portion and a concave portion different from the first concave portion and arranged with a liquid supply unit from which the liquid is supplied to the liquid containing unit is a second concave portion, the first concave portion and the second concave portion are formed independently from each other.

9. The liquid ejecting device according to claim 1 , wherein a holding member that can hold liquid is enclosed inside the liquid containing unit, a liquid flow passage that supplies the liquid to the liquid ejecting unit is formed in the liquid containing unit, a filter which is different from the holding member is arranged in the liquid flow passage, and the filter is located just below the concave portion in which the projected portion is formed and is located downward in a gravity direction.

10. The liquid ejecting device according to claim 9 , wherein
the carriage is configured capable of reciprocating,
the liquid containing unit has a plurality of concave portions in which the projected portions are formed, a number of the concave portions being larger than a number of the filters,
the plurality of concave portions is arranged on a straight line along a direction in which the carriage reciprocate, and
the filter is arranged at a position corresponding to a line perpendicular to a line connecting the plurality of concave portions.

11. The liquid ejecting device according to claim 1 , wherein a second concave portion different from the concave portion is provided on the outer wall surface of the liquid containing unit, a liquid supply unit is projected in a direction from a bottom surface of the second concave portion to an outside of the liquid containing unit, the flow-passage-connecting-member flow passage is inserted into the liquid supply unit, and, in the interior of the liquid supply unit, there is formed a flow path for liquid from the flow passage connecting member to the liquid container.

12. A head including a liquid containing unit that can store liquid thereinside and a liquid ejecting unit that ejects liquid, wherein
a concave portion that is concave in a direction to an inside of the liquid containing unit is formed on an outer wall surface of the liquid containing unit, a projected portion that is projected in a direction to an outside of the liquid containing unit from a bottom surface of the concave portion is formed inside the concave portion and, inside the projected portion, there is no liquid flow path from the flow passage connecting member to the liquid container.

13. The head according to claim 12 , wherein the liquid containing unit has a case and a cover member, and the outer wall surface of the liquid containing unit on which the concave portion is formed is an outer wall surface of the cover member.

14. The head according to claim 12 , wherein the projected portion is not projected from a top surface of the outer wall surface of the liquid containing unit.

15. The head according to claim 12 , wherein the projected portion is projected from a top surface of the outer wall surface of the liquid containing unit.

16. The head according to claim 15 , wherein the projected portion has a height projected from the top surface of the outer wall surface of the liquid containing unit, the height being 20% or more and 70% or less of a height of the projected portion in the concave portion.

17. The head according to claim 15 , wherein the projected portion has a height projected from the top surface of the outer wall surface of the liquid containing unit, the height being 30% or more and 50% or less of a height of the projected portion in the concave portion.

18. The head according to claim 12 , wherein a holding member that can hold liquid is enclosed inside the liquid containing unit, and the bottom surface of the concave portion presses the holding member.

19. The head according to claim 12 , wherein, in a case where the concave portion is a first concave portion and a concave portion different from the first concave portion and arranged with a liquid supply unit from which the liquid is supplied to the liquid containing unit is a second concave portion, the first concave portion and the second concave portion are formed independently from each other.

20. The head according to claim 12 , wherein a holding member that can hold liquid is enclosed inside the liquid containing unit, a liquid flow passage that supplies the liquid to the liquid ejecting unit is formed in the liquid containing unit, a filter which is different from the holding member is arranged in the liquid flow passage, and the filter is located just below the concave portion in which the projected portion is formed and is located downward in a gravity direction.

Assignees

• Canon Kk

Inventors

• Ikebe Norihiro
• Kotaki Yasuo
• Tsukuda Keiichiro
• Nanjo Tatsuo
• Iinuma Keisuke

Classifications

• B41J2/17513 Primary

  Inner structure · CPC title

• B41J29/02

  Framework · CPC title

• B41J2/175 Primary

  Ink supply systems {; Circuit parts therefor} · CPC title

• B41J2/17523

  Ink connection · CPC title

• B41J2/17553 Primary

  Outer structure · CPC title