초록 ▼

A portable electronic apparatus of the present invention has a body portion with a keyboard on a front upper part thereof, and a display portion which is connected to a higher position at the rear of the body portion through a hinge portion such that the display portion is folded down and pulled up

A portable electronic apparatus of the present invention has a body portion with a keyboard on a front upper part thereof, and a display portion which is connected to a higher position at the rear of the body portion through a hinge portion such that the display portion is folded down and pulled up with respect to the body portion. The display portion is provided with a large-sized display screen such as a liquid crystal display (LCD) on a front surface thereof. The hinge portion comprises a hinge member which is disposed in a recess formed on the body portion and divided into a hinge cover and a hinge base; a pair of hinge shafts projecting from both upper ends of the hinge member and whose projecting ends are connected to the bottom of the display portion; presser spring disposed in the hinge member, each engaging with the corresponding hinge shaft to restrict the pivotal movement of the hinge shaft; torsion bars disposed on both lower sides of the hinge member; and supporting portions provided on side faces of the body portion and to which the torsion bars are fitted. Each of the hinge shafts has an elliptic section at least at a portion engaging with the presser spring so that a deflection quantity of the presser spring is automatically adjusted.

대표청구항 ▼

A portable electronic apparatus comprising: a base unit including a keyboard and a hinge mount portion; a hinge device mounted on the hinge mount portion; a display unit rotatably connected to the base unit through the hinge device, and including an outer surface and an inner surface having a displa

A portable electronic apparatus comprising: a base unit including a keyboard and a hinge mount portion; a hinge device mounted on the hinge mount portion; a display unit rotatably connected to the base unit through the hinge device, and including an outer surface and an inner surface having a display screen, the display unit being rotatable between a first position for covering the keyboard, a second position for exposing the display screen in an upward direction for viewing from above, and an erect position between the first position and the second position; the hinge device including: (1) a rotatable shaft connected to the display unit; and (2) a friction member contacting the rotatable shaft for generating an increasing friction force corresponding to the angle of rotation of the display unit as the display unit rotates from the erect position to the second position, the friction force temporarily keeping the display unit in a selected position between the erect position and the second position; wherein the rotatable shaft has a cross section, said cross section having a first diameter larger than a second diameter; and wherein the friction member is in contact with a portion on the second diameter of the rotatable shaft when the display unit is in the erect position.