Importance

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Abstract

There is provided a longitudinal extension mechanism of an armrest that includes a main body of an armrest, a fixed hinge shaft being non-rotatably fixed to a bracket and serving as a rotation axis of the armrest main body, an armrest extension provided at an end of the armrest main body so as to straightly move in the longitudinal direction of the armrest main body, and a length extending apparatus for allowing the armrest extension to straightly move with respect to the arm rest main body due to rotation of the armrest main body about the fixed hinge shaft. Therefore, when the armrest rotates to a horizontal posture, the armrest extension automatically protrudes by a certain length and the total length of the armrest is increased, thereby maximizing the convenience to a user. In addition, when the armrest rotates to a vertical posture, the total length of the armrest is decreased, thereby improving a reception ability and appearance.

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First Claim