Liquid discharge recording head

• US 20030156171A1
• Filed: 02/11/2003
• Published: 08/21/2003
• Est. Priority Date: 02/15/2002
• Status: Active Grant

• Current Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Original Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Inventors: Yamaguchi, Yukuo, Umeyama, Mikiya, Koizumi, Yutaka
• Granted Patent: US 6,957,883 B2
• Time in Patent Office: Days
• US Class Current: 347/86
• CPC Class Codes: B41J 2/17509 Whilst mounted in the printer
• CPC Class Codes: B41J 2/17513 Inner structure
• CPC Class Codes: B41J 2/1752 Mounting within the printer
• CPC Class Codes: B41J 2/17553 Outer structure

Abstract

A liquid discharge recording head, which is formed by bonding a recording unit having plural recording elements for discharging recording liquid, and a recording liquid supply supporting member used for supplying recording liquid to the recording unit, comprises the recording liquid supply supporting member provided with at least one first snap fitting extended substantially in the same direction as the bonding direction of the recording liquid supply supporting member and the recording unit, and at least one second snap fitting extended in the direction intersecting the extended direction of the first snap fitting; and the recording unit provided with at least one first receiving portion engaging with the first engaging portion formed for the first snap fitting, and at least one second receiving portion engaging with the second engaging portion formed for the second snap fitting. With the structure thus arranged, these members are bonded simply and reliably for the provision of a highly reliable low-cost liquid discharge recording head.

Claims

1. A liquid discharge recording head formed by bonding a recording unit having plural recording elements for discharging recording liquid., and a recording liquid supply supporting member used for supplying recording liquid to said recording unit,

wherein said recording liquid supply supporting member is provided with at least one first snap fitting extended substantially in the same direction as the bonding direction of said recording liquid supply supporting member and said recording unit, and at least one second snap fitting extended in the direction intersecting the extended direction of said first snap fitting;

and

wherein said recording unit is provided with at least one first receiving portion engaging with the first engaging portion formed for said first snap fitting, and at least one second receiving portion engaging with the second engaging portion formed for said second snap fitting.

3. A liquid discharge recording head according to claim 1, wherein the extended direction of said first snap fitting intersects the extended direction of said second snap fitting at least an angle of 45°

or more.

4. A liquid discharge recording head according to claim 3, wherein the extended direction of said first snap fitting is substantially orthogonal to the extended direction of said second snap fitting.

5. A liquid discharge recording head according to claim 1 comprising a pair of said first snap fittings, a pair of said first receiving portions, a pair of said second receiving portions, and a pair of said second snap fittings.

6. A liquid discharge recording head according to claim 1, wherein either one of a holding member provided with function to hold and fix a storing tank containing recording liquid therein and a recording liquid storing unit provided with function to provisionally retain recording liquid supplied from the outside is bonded to said recording unit as said recording liquid supply supporting member.

7. A liquid discharge recording head according to claim 1, wherein a sealing member is nipped on the bonding portion of said recording liquid supply supporting member and said recording unit.

8. A liquid discharge recording head according to claim 1, wherein in the vicinity off said second snap fitting of said recording liquid supply supporting member, an elastic engaging portion is provided extendedly in the same direction as said first snap fitting.

2. A liquid discharge recording head formed by bonding a recording unit having plural recording elements for discharging recording liquid, and a recording liquid supply supporting member used for supplying recording liquid to said recording unit,

wherein said recording unit is provided with at least one first snap fitting extended substantially in the same direction as the bonding direction of said recording liquid supply supporting member and said recording unit, and at least one second snap fitting extended in the direction intersecting the extended direction of said first snap fitting;

and

wherein said recording liquid supply supporting member is provided with at least one first receiving portion engaging with the first engaging portion formed for said first snap fitting, and at least one second receiving portion engaging with the second engaging portion formed for said second snap fitting.