IP Library Granted Patent US 7,856,256
Granted Patent B2
US 7,856,256 · App. 11/719,794 · Granted Dec 21, 2010

Foldable portable terminal device

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Quick Facts
Patent No.
US 7,856,256
App. No.
11/719,794
Granted
Dec 21, 2010
Kind
B2
Abstract

A foldable portable terminal device provided with a first housing includes a display unit, a speaker and a speaker sound hole, a second housing, and a hinge unit that couples the housings rotatably around two directions that perpendicularly intersect with each other. The device is configured such that coupling of the first housing and the hinge unit is coupled to a second rotary shaft of the hinge unit at a position closer to a surface having the speaker sound hole than a midpoint in a cross-section in a thickness direction of the first housing, and that a gap formed in a folded state in which the first housing is overlaid on the second housing with a surface having the speaker sound hole facing inside is greater than a gap formed in the folded state with the surface having the speaker sound hole facing outside.

Claims (13)

1. A foldable portable terminal device comprising:

a first housing including at least a speaker and a speaker sound hole;

a second housing; and

a hinge unit that couples the first housing and the second housing rotatably, the hinge unit including a coupling unit that couples the first housing and the second housing, a first rotary shaft that rotates the first housing and the second housing in a folding/unfolding direction, and a second rotary shaft that perpendicularly intersects with the first rotary shaft, wherein

in a folded state in which the first housing is overlaid on the second housing with the speaker sound hole provided for the first housing facing inside, a gap is formed between the speaker sound hole of the first housing and the second housing by coupling the first housing and the hinge unit at a position at which a midpoint of the first housing in a thickness direction is displaced from a center of the second rotary shaft of the hinge unit, and

by coupling the first rotary shaft of the hinge unit and the first housing at a position closer to a surface provided with the speaker sound hole than a midpoint of the first housing in a thickness direction of the first housing, the gap between the speaker sound hole of the first housing and the second housing formed in the folded state in which the first housing is overlaid on the second housing with the speaker sound hole provided for the first housing facing inside becomes greater than the gap between the speaker sound hole of the first housing and second housing formed in the folded state in which the first housing is overlaid on the second housing with the speaker sound hole provided for the first housing facing outside.

2. A foldable portable terminal device, comprising:

a first housing including at least a speaker and a speaker sound hole;

a second housing;

a hinge unit that couples the first housing and the second housing rotatably around at least two rotary shafts that perpendicularly intersect with each other;

a projection disposed on a surface of the second housing facing toward the first housing; and

a recess disposed at a position, at which the projection is brought into contact, on a rear surface against the surface provided with the speaker sound hole of the first housing, wherein

in a folded state in which the first housing is overlaid on the second housing with the speaker sound hole provided for the first housing facing inside, a surface provided with the speaker sound hole of the first housing is provided to be inclined with respect to the second housing, and a gap is formed between the speaker sound hole of the first housing and the second housing.

Assignments (2)
CHANGE OF NAME Recorded Nov 11, 2008
From: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
To: PANASONIC CORPORATION
Reel/Frame 021818/0725 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 29, 2007
From: YOKOTA, MASANORI; NANMOKU, TERUO; HASEGAWA, AKIRA
To: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Reel/Frame 020027/0121 →