Patent ID: 8794436

Claim:
A protective sheath for a portable electronic device having a display surface and a rear surface opposite to the display surface, wherein the protective sheath comprises: a front plate, capable of covering the display surface and having a first side edge; a holding component, having an inner surface, an outer surface opposite to the inner surface and a second side edge proximal to the front plate, wherein the holding component is capable of holding the portable electronic device on the inner surface from the rear surface; a position limiting hinge, disposed on the outer surface, and comprising: a first metal sheet, fastened to the outer surface and comprising: a first main plate, disposed on the outer surface; a first folded plate, disposed on the inner surface; a second folded plate, passing through the holding component and connected between the first main plate and the first folded plate; at least a first circular folded plate; and at least a first connecting plate, connected between the first main plate and the first circular folded plate; a second metal sheet, fastened to the third side edge; and at least a shaft, fitted into the first circular folded plate and pivoted between where the first metal sheet protruding out of the outer surface and where the second metal sheet proximal to the first metal sheet; and a support plate, having a third side edge and a fourth side edge opposite to the third side edge, wherein the third side edge is pivoted to the outer surface via the position limiting hinge, and the front plate is capable of rotating relative to the support plate due to the first side edge connects with the fourth side edge, when the support plate rotates relative to the holding component for a presetting pivoting angle, the position limiting hinge maintains the presetting pivoting angle between the support plate and the holding component, so as to let the portable electronic device stand on a carrying surface.