Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Resiliently biased hinge
Patent
1990-12-31
1991-10-01
Seidel, Richard K.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Resiliently biased hinge
16303, 16308, 16321, 16341, 16342, 16386, 364708, 2182921, 358254, E05D 1110
Patent
active
050520784
ABSTRACT:
A portable electronic apparatus 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.
REFERENCES:
patent: 1742699 (1930-01-01), Fellows
patent: 2304223 (1942-12-01), Westrope
patent: 4070054 (1978-01-01), Cziptschirsch
patent: 4702513 (1987-10-01), Ebert et al.
patent: 4734955 (1988-04-01), Connor
Brown Edward A.
Kabushiki Kaisha Toshiba
Seidel Richard K.
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