TW200518561A - Rotational device of upper lid - Google Patents

Abstract

The present invention relates to a rotational device of upper lid, which is mainly installed at a pivot of a foldable and flip type mobile phone. The device has a rotational base rotated on the pivot, the rotational base has an elastic element and an upper and a lower positioning blocks disposed therein, the upper and the lower positioning blocks correspondingly have a concave and a convex parts equipped with a guiding sloped surface and arranged alternatively. Thus, when the upper lid rotates, the rotational base also drives the inner upper block to rotate with it, and the upper and lower positioning blocks urge against the elastic element by means of the design of the guiding sloped surface of the concave and the convex parts, so as to force the concave part to disengage from the convex part. When the upper lid rotates a specific angle, the concave and the convex parts of the upper and the lower positioning blocks can be engaged and positioned again. Therefore, when the lens of the camera body faces outward for aiming at the scenery to be photographed, the upper lid can rotate backwards to move the screen toward user, so that user can view the scenery to be photographed.