Hinge unit and electronic apparatus using it

Abstract

According to the present invention, a hinge device which may be mounted with one action without fixing and mounting the hinge device with any other discrete part and is superior in mounting work, in which a cam portion 4 is provided within a mounting case body 3 in a rotation preventing manner, the cam portion 4 is provided slidably movably within the mounting case body 4 against an engagement biasing spring 5 provided within the mounting case body 3, a cam engagement portion 6 for engaging with the cam portion 4 by the engagement biasing spring 5 is provided in confrontation with the cam portion 4, the cam engagement portion 4 or a mounting portion provided in the cam engagement portion 6 is provided projectingly on one side of the mounting case body 3, the mounting case body 3 is provided in a fixed condition to the first member 1, the cam engagement portion 6 or the mounting portion provided in the cam engagement portion 6 is provided in a fixed condition to the second member 2, when the second member 2 is rotated to the first member 1, the cam portion 4 and the cam engagement portion 6 are disengaged and rotated to each other while the cam portion 4 is separated against the engagement biasing spring 5 and a rotational position of the second member 2 is held to the first member 1 under the condition that the cam portion 4 and the cam engagement portion 6 are biased and engaged with each other, characterized in that the cam engagement portion 6 provided on one side of the mounting case body 3 or the mounting portion provided in the cam engagement portion 6 is slidably movably (retractably and movably) provided together with the cam portion 4 against the engagement biasing spring 5 toward the inside of the mounting case body 3 so that the cam engagement portion 6 or the mounting portion is fixed to the second member 2 with one action by the retracting motion and by the returning and restoring motion of the engagement biasing spring 5.

Description

technical field [0001] The present invention relates to a hinge device connecting a first part and a second part with a pivot, for example, connecting base end portions of the above-mentioned first part and the second part with a pivot, which can connect the first part and the second part to each other. A hinge device in which any part rotates from a closed state in which both sides are overlapped to an open state with a predetermined opening angle, and an electronic device using such a hinge device, for example, a mobile phone or a notebook computer. Background technique [0002] Various hinge devices have been proposed, but the main body and flip of a mobile phone, and the main body and cover of a notebook computer are mostly pivotally connected by a hinge device having a structure described below. [0003] The structure of this hinge device is as follows: a cam part in a detent state is provided in the installation housing, and after this cam part overcomes the elastic fo...

AI Technical Summary

Problems solved by technology

[0006] Therefore, the hinge device must be fixed with other parts (screws or pins, etc.) after being loaded (after being inserted into the loading part), and the installation is very troublesome, and it is impossible to install it quickly.

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