Two-shaft hinge equipped with a rotation limiting mechanism
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United States of America Patent
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Mar 25, 2008
Grant Date -
Mar 23, 2006
app pub date -
May 27, 2004
filing date -
Jun 3, 2003
priority date (Note) -
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Abstract
A two-shaft hinge component equipped with a rotation limiting mechanism in which a construction is adopted that makes possible a rotation limiting mechanism with increased durability, reduced size and lighter weight. A torque unit is constituted by a fixed cam and a rotary cam being in coaxial abutment with a rotary shaft and an opening/closing shaft, in a hinge of two-shaft construction in which a rotary shaft passes through an opening/closing shaft, sliding frictional torque and a click action being generated during rotation and opening/closing operation by an abutting cam surface. The torque unit is constructed independently on the rotary shaft and the opening/closing shaft and, in addition, there is provided a rotation limiting mechanism whereby the rotary action of the rotary shaft is subjected to limitation in accordance with the opening/closing angle of the opening/closing shaft. With the two-shaft hinge according to the present invention, a reduction in size and weight is achieved by reducing the number of components, a stable torque and click action are generated, durability is improved and additional space is secured by a concentrated arrangement of the components.
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