Liquid ejection apparatus and attachment assembly of liquid ejection apparatus

Patent metadata

Field	Value
Publication number	US-9751318-B2
Application number	US-201615156808-A
Country	US
Kind code	B2
Filing date	May 17, 2016
Priority date	May 29, 2015
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A holding member provided in a liquid ejection apparatus is attached to a receiving member and includes a capturing portion capturing a supply member so as to hold the supply member. The capturing portion is displaceable while the holding member is attached to the receiving member.

First claim

What is claimed is:

1. A liquid ejection apparatus comprising:
a supply member that includes a supply opening and is constructed to supply a liquid from the supply opening;
a liquid ejection head that is constructed to eject a liquid;
a receiving member having first and second ends, the receiving member being connected to the liquid ejection head at the first end, the receiving member being constructed to receive the supply member at the second end, and the receiving member further being constructed to supply the liquid supplied from the supply member to the liquid ejection head in a case where the second end of the receiving member receives the supply member; and
an elastic holding member that is attached to the second end of the receiving member, wherein one end of the elastic holding member is provided with a first insertion opening into which the supply member is inserted and is provided with a film member for blocking the first insertion opening, and wherein another end of the elastic holding member is provided with a second insertion opening communicating with the first insertion opening and into which the second end of the receiving member is inserted,
wherein an inner diameter of the second insertion opening is smaller than an outer diameter of the second end of the receiving member at a position where the second end of the receiving member is inserted to the second insertion opening of the elastic holding member, so as to urge the film member in a direction in which the first insertion opening is blocked by deformation of the elastic holding member in a case where the second end of the receiving member is inserted to the second insertion opening of the elastic holding member.

2. The liquid ejection apparatus according to claim 1 , wherein two film members are disposed at the one end of the elastic holding member at positions opposed to each other with the center of the first insertion opening interposed therebetween.

3. The liquid ejection apparatus according to claim 2 , wherein in a case where the second end of the receiving member is inserted to the second insertion opening of the elastic holding member, each film member is urged while being pressed in a direction toward the center of the first insertion opening.

4. The liquid ejection apparatus according to claim 1 , wherein in the case where the second end of the receiving member is not inserted to the second insertion opening of the elastic holding member, a difference between the outer diameter of the second end of the receiving member and the inner diameter of the second insertion opening increases as it goes toward the first end of the receiving member.

5. The liquid ejection apparatus according to claim 1 , wherein in a case where the second end of the receiving member is inserted to the second insertion opening of the elastic holding member, a force in which the second insertion opening of the elastic holding member clamps the second end of the receiving member inward increases as it goes toward the first end of the receiving member.

6. The liquid ejection apparatus according to claim 1 , wherein an area of the elastic holding member contacting the supply member is provided with a friction decreasing portion, the friction decreasing portion decreasing a friction force between the elastic holding member and the supply member in a case where the supply member is inserted to the first insertion opening of the elastic holding member.

7. An attachment assembly, for a liquid supply portion, provided in a liquid ejection apparatus including a liquid ejection head ejecting a liquid, comprising:
a supply member that includes a supply opening and is constructed to supply the liquid from the supply opening;
a receiving member having first and second ends, the receiving member being constructed to receive the supply member at the second end and to receive the liquid from the supply member in a case where the second end of the receiving member receives the supply member; and
an elastic holding member that is attached to the second end of the receiving member, wherein one end of the elastic holding member is provided with a first insertion opening into which the supply member is inserted and is provided with a film member for blocking the first insertion opening, and wherein another end of the elastic holding member is provided with a second insertion opening communicating with the first insertion opening and into which the second end of the receiving member is inserted,
wherein an inner diameter of the second insertion opening is smaller than an outer diameter of the second end of the receiving member at a position where the second end of the receiving member is inserted to the second insertion opening of the elastic holding member, so as to urge the film member in a direction in which the first insertion opening is blocked by deformation of the elastic holding member in a case where the second end of the receiving member is inserted to the second insertion opening of the elastic holding member.

8. The attachment assembly according to claim 7 , wherein two film members are disposed at the one end of the elastic holding member at positions opposed to each other with the center of the first insertion opening interposed therebetween.

9. The attachment assembly according to claim 8 , wherein in a case where the second end of the receiving member is inserted to the second insertion opening of the elastic holding member, each film member is urged while being pressed in a direction toward the center of the first insertion opening.

10. The attachment assembly according to claim 7 , wherein in the case where the second end of the receiving member is not inserted to the second insertion opening of the elastic holding member, a difference between the outer diameter of the second end of the receiving member and the inner diameter of the second insertion opening increases as it goes toward the first end of the receiving member.

11. The attachment assembly according to claim 7 , wherein in a case where the second end of the receiving member is inserted to the second insertion opening of the elastic holding member, a force in which the second insertion opening of the elastic holding member clamps the second end of the receiving member inward increases as it goes toward the first end of the receiving member.

12. The attachment assembly according to claim 7 , wherein an area of the elastic holding member contacting the supply member is provided with a friction decreasing portion, the friction decreasing portion decreasing a friction force between the elastic holding member and the supply member in a case where the supply member is inserted to the first insertion opening of the elastic holding member.

13. The liquid ejection apparatus according to claim 1 , wherein in the case where the second end of the receiving member is not inserted to the second insertion opening of the elastic holding member, an inner diameter of a first portion of the second insertion opening being smaller than an outer diameter of a second portion of the receiving member corresponding to the first portion by a first length, an inner diameter of a third portion of the second insertion opening near to the first insertion opening than the first portion being smaller than an outer diameter of a fourth portion of the receiving member corresponding to the third portion by second length, the first length is larger than the second length.

14. The attachment assembly according to claim 7 , wherein in the case where the second end of the receiving member is not inserted to the second insertion opening of the elastic holding member, an inner dia

Assignees

• Canon Kk

Inventors

• Iwano Takuya
• Amma Hiromasa
• Sekino Takeshi
• Shimoyama Noboru
• Hasegawa Shuichi

Classifications

• B41J2/1752

  Mounting within the printer · CPC title

• B41J2/175 Primary

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

• B41J2/17523 Primary

  Ink connection · CPC title

• B41J2/145

  Arrangement thereof · CPC title

• B41J2/14

  Structure thereof {only for on-demand ink jet heads} · CPC title