Liquid ejection apparatus, liquid container, and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-10160222-B2
Application number	US-201615338031-A
Country	US
Kind code	B2
Filing date	Oct 28, 2016
Priority date	Nov 17, 2015
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

There are provided a liquid ejection apparatus with low costs, a liquid container, and a manufacturing method thereof. To this end, a rocking body is assembled to the liquid container to suppress the drop thereof by melting and swaging of a support shaft.

First claim

What is claimed is:

1. A manufacturing method of a liquid container capable of containing liquid and including a rocking body rotatable around a support shaft depending on an amount of contained liquid, the manufacturing method comprising the steps of:
setting a spacer having a predetermined width at the support shaft;
assembling the rocking body to the liquid container by melting and swaging a part of the support shaft, said assembling of the rocking body to the liquid container being performed after said setting of the spacer at the support shaft; and
removing the spacer, said removing of the spacer being performed after said assembling of the rocking body to the liquid container.

2. The manufacturing method of the liquid container according to claim 1 , further comprising the step of:
forming the support shaft made of a material having a lower melting point than the rocking body.

3. The manufacturing method of the liquid container according to claim 1 , wherein the rocking body includes:
a float unit that displaces a position depending on an amount of the liquid contained in the liquid container; and
a detection unit arranged so as to move corresponding to a position of the float unit and enable a position to be detected from an outside of the liquid container.

4. The manufacturing method of the liquid container according to claim 3 ,
wherein a remaining amount of the liquid in the liquid container can be detected based on information related to positioning of the detection unit.

5. The manufacturing method of the liquid container according to claim 3 , wherein the liquid container has a support post that limits a movement of the float unit.

6. The manufacturing method of the liquid container according to claim 1 , wherein a part of a portion containing the liquid in the liquid container is formed of a flexible film.

7. The manufacturing method of the liquid container according to claim 6 , further comprising the step of welding the support shaft and the film.

8. The manufacturing method of the liquid container according to claim 1 , wherein the support shaft is formed at a part of a member forming an outer shape of the liquid container.

9. The manufacturing method of the liquid container according to claim 1 , wherein the support shaft is formed in the rocking body.

10. The manufacturing method of the liquid container according to claim 1 , wherein a metal block is heated and pressed against the support shaft, thereby melting the support shaft.

11. The manufacturing method of the liquid container according to claim 1 , wherein friction heat is generated at the tip of the support shaft to melt the support shaft.

Assignees

• Canon Kk

Inventors

• Shiba Akira
• Takaoka Tsubasa
• Hayashi Hiroki
• Yoshii Kazuya
• Shimamura Ryo

Classifications

• B41J2002/17573

  using optical means for ink level indication · CPC title

• B41J2/17566 Primary

  Ink level or ink residue control · CPC title

• B41J2/17559

  Cartridge manufacturing · CPC title

• B41J2/135

  Nozzles · CPC title

• B41J2002/17576

  using a floater for ink level indication · CPC title