| 摘要 |
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.
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