Patent ID: 8657451

Claim:
A decorative plate module for a projector, the projector having a front cover and the front cover having an opening to allow a projection lens to stick out from the opening, the decorative plate module comprising: a base plate attached to a periphery of the opening of the front cover and having a first end and a second end opposite to each other, wherein a slide groove is formed on the first end and the slide groove has an oblique wall forming an angle with a main plane of the base plate; a first elastic member disposed inside the slide groove and stretching in a first direction parallel to the main plane of the base plate; a hook member slidably coupled to the slide groove and leaning against the oblique wall, wherein one end of the hook member leans against the first elastic member and another end of the hook member slidably engages with the front cover; and a second elastic member disposed on a side wall of the slide groove and stretching in a second direction substantially perpendicular to the first direction, wherein, when forces are exerted on the hook member in the second direction, the hook member compresses the first elastic member in the first direction and slides relative to the oblique wall of the slide groove to come off the front cover, and the decorative plate module is ejected from the front cover due to the elastic force released by the second elastic member.