Biaxial hinge and terminal device using the same
First Claim
1. A biaxial hinge for allowing a first casing and a second casing to open and close relative to each other, said biaxial hinge comprising:
- a first hinge shaft provided on said first casing being coupled in parallel to a second hinge shaft provided on said second casing, said hinge shafts being thereby respectively rotatable;
a first means for selectively restricting rotation and a second means for selectively restricting rotation being provided between said first hinge shaft and said second hinge shaft, said hinge shafts being thereby selectively rotatable;
said first means for selectively restricting rotation comprising,a first slide plate comprising a first locking portion movably provided in a radial direction of said first hinge shaft and said second hinge shaft, said first hinge shaft and said second hinge shaft passing through said first locking portion;
a first locking cam member attached to said first hinge shaft so as to be rotatable together with said first hinge shaft, said first locking cam member engaging with said first locking portion or not, depending on a rotation angle of said first hinge shaft; and
a second locking cam member attached to said second hinge shaft so as to be rotatable together with said second hinge shaft, said second locking cam member engaging with said first locking portion or not, depending on a rotation angle of said second hinge shaft;
said second means for selectively restricting rotation comprising,a second slide plate comprising a second locking portion movably provided in a radial direction of said first hinge shaft and said second hinge shaft, said first hinge shaft and said second hinge shaft passing through said second locking portion;
a third locking cam member attached to said first hinge shaft so as to be rotatable together with said first hinge shaft, said third locking cam member engaging with said second locking portion or not, depending on a rotation angle of said second hinge shaft;
a fourth locking cam member attached to said second hinge shaft so as to be rotatable together with said second hinge shaft, said fourth locking cam member engaging with said second locking portion or not, depending on a rotation angle of said second hinge shaft; and
a stopper means consisting of a first stopper means and a second stopper means, said first stopper means comprising;
a first A bearing hole provided in a lower position of a stopper plate also functioning as a first joint member, said first hinge shaft passing through said first A bearing hole, said first hinge shaft being thereby rotatable, a first stopper piece provided on the outside of said first A bearing hole, and a first projection provided on said first hinge shaft, said first projection abutting against said first stopper piece or not, depending on a rotation angle of said first hinge shaft;
said second stopper means comprising;
a first B bearing hole provided in an upper position of said stopper plate also functioning as said first joint member, said second hinge shaft passing through said first B bearing hole, said second hinge shaft being thereby rotatable, a second stopper piece provided on the outside of said first B bearing hole, and a second projection provided on said second hinge shaft, said second projection abutting against said second stopper piece or not, depending on a rotation angle of said second hinge shaft,said first hinge shaft and said second hinge shaft being rotatable by said first means for selectively restricting rotation and said second means for selectively restricting rotation in a specific sequence, thus said first casing and said second casing being thereby openable and closable from 0 degree in a closed state to from 360 degrees in a fully opened state by alternately rotating said first hinge shaft and said second hinge shaft 180 degrees in opposite directions.
1 Assignment
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Accused Products
Abstract
A biaxial hinge which can meet the requirement that the first and the second casings should be able to keep a stable stopping state at any opening and closing angle within the 360 degrees range. A first hinge shaft attached to a first casing of a terminal device is coupled in parallel to a second hinge shaft attached to a second casing by way of multiple joint parts, a first module for selectively restricting rotation and a second module for selectively restricting rotation are provided for selectively allowing the first hinge shaft and the second hinge shaft to rotate, and a first slide plate and a second slide plate are used for the first module for selectively restricting rotation and the second module for selectively restricting rotation.
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Citations
6 Claims
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1. A biaxial hinge for allowing a first casing and a second casing to open and close relative to each other, said biaxial hinge comprising:
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a first hinge shaft provided on said first casing being coupled in parallel to a second hinge shaft provided on said second casing, said hinge shafts being thereby respectively rotatable; a first means for selectively restricting rotation and a second means for selectively restricting rotation being provided between said first hinge shaft and said second hinge shaft, said hinge shafts being thereby selectively rotatable; said first means for selectively restricting rotation comprising, a first slide plate comprising a first locking portion movably provided in a radial direction of said first hinge shaft and said second hinge shaft, said first hinge shaft and said second hinge shaft passing through said first locking portion; a first locking cam member attached to said first hinge shaft so as to be rotatable together with said first hinge shaft, said first locking cam member engaging with said first locking portion or not, depending on a rotation angle of said first hinge shaft; and a second locking cam member attached to said second hinge shaft so as to be rotatable together with said second hinge shaft, said second locking cam member engaging with said first locking portion or not, depending on a rotation angle of said second hinge shaft; said second means for selectively restricting rotation comprising, a second slide plate comprising a second locking portion movably provided in a radial direction of said first hinge shaft and said second hinge shaft, said first hinge shaft and said second hinge shaft passing through said second locking portion; a third locking cam member attached to said first hinge shaft so as to be rotatable together with said first hinge shaft, said third locking cam member engaging with said second locking portion or not, depending on a rotation angle of said second hinge shaft; a fourth locking cam member attached to said second hinge shaft so as to be rotatable together with said second hinge shaft, said fourth locking cam member engaging with said second locking portion or not, depending on a rotation angle of said second hinge shaft; and a stopper means consisting of a first stopper means and a second stopper means, said first stopper means comprising; a first A bearing hole provided in a lower position of a stopper plate also functioning as a first joint member, said first hinge shaft passing through said first A bearing hole, said first hinge shaft being thereby rotatable, a first stopper piece provided on the outside of said first A bearing hole, and a first projection provided on said first hinge shaft, said first projection abutting against said first stopper piece or not, depending on a rotation angle of said first hinge shaft; said second stopper means comprising; a first B bearing hole provided in an upper position of said stopper plate also functioning as said first joint member, said second hinge shaft passing through said first B bearing hole, said second hinge shaft being thereby rotatable, a second stopper piece provided on the outside of said first B bearing hole, and a second projection provided on said second hinge shaft, said second projection abutting against said second stopper piece or not, depending on a rotation angle of said second hinge shaft, said first hinge shaft and said second hinge shaft being rotatable by said first means for selectively restricting rotation and said second means for selectively restricting rotation in a specific sequence, thus said first casing and said second casing being thereby openable and closable from 0 degree in a closed state to from 360 degrees in a fully opened state by alternately rotating said first hinge shaft and said second hinge shaft 180 degrees in opposite directions. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification