Patent ID: 8060159

Claim:
A slidable and rotationally attaching unit configured to slidably and rotatably attach a movable housing on a supporting base so that a part of the movable housing is overlapped with the supporting base, the slidable and rotational attaching unit comprising: a base plate provided between the supporting base and the movable housing and attached to the supporting base; a plate cam provided between the supporting base and the movable housing and attached to the movable housing; a slide guide provided on a surface of the base plate facing the plate cam, the slide guide being formed by a slit or a groove along upper and lower directions in a standard pose that is a basic using state of the movable housing; a guide pin provided on a surface of the base plate facing the plate cam, the guide pin being positioned on an extended line of a lower end of the slide guide; and a connecting pin slidably and rotatably engaged with the plate cam so that the connecting pin prevents the plate cam from coming off from the slide guide; wherein a first concave part, a second concave part, and a third concave part are provided at an external circumference of the plate cam; the guide pin is guided to the first concave part when the movable housing is in the standard pose; the guide pin is guided to the second concave part when the movable housing is rotated 90 degrees in one direction from the standard pose; and the guide pin is guided to the third concave part when the movable housing is rotated 90 degrees in another direction from the standard pose.