# US 9,038,767 B2 · Sound absorbing body and printing device

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- Number: US 9,038,767 B2
- Document ID: US9038767B2
- Status: Granted
- Kind: B2
- Application number: 14/177,413
- Filed: 2014-02-11
- Published: 2014-08-14
- Granted: 2015-05-26
- Earliest claimed: 2013-02-14
- Assignees: Seiko Epson Corporation
- Applicants: Seiko Epson Corporation
- Inventors: Kiyoshi Tsujino
- Web page: https://patentgrep.com/patent/US9038767B2

## CPC

- B41F 13/0024: {Frames}
- B41J 29/10: Sound-deadening devices embodied in machines
- B41F: PRINTING MACHINES OR PRESSES (manifolding devices or office printing machines B41L)
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

## Abstract

A sound absorbing body includes a fibrillated part fibrillated into fiber form, and an unfibrillated part that is not fibrillated into fiber form. The unfibrillated part is dispersed inside the single sound absorbing body.

## Claims

### Claim 1

A sound absorbing body comprising:
a fibrillated part fibrillated into fiber form and included in a fiber group into which a pulp sheet is defibrated at a defibrating machine; and
an unfibrillated part that is not fibrillated into fiber form and is included in the fiber group, the unfibrillated part being dispersed inside the single sound absorbing body.

### Claim 2 (depends on 1)

The sound absorbing body according to claim 1, wherein
when a perpendicular direction in relation to one surface of the sound absorbing body is used as a thickness direction, the unfibrillated part is dispersed in a direction along the one surface and in the thickness direction.

### Claim 3 (depends on 1)

The sound absorbing body according to claim 1, wherein
the unfibrillated part includes cellulose fibers.

### Claim 4 (depends on 1)

A printing device comprising:
a case;
a printing unit arranged inside the case; and
the sound absorbing body according to claim 1, arranged inside the case.

### Claim 5 (depends on 1)

The sound absorbing body according to claim 1, wherein
the unfibrillated part has a plurality of paper-shaped pieces.