Patent ID: 7771172

Claim:
A quick assembly blade for a ceiling fan comprising: a blade frame having its rear end extended and formed with a framework, said framework having its rear side formed with a pan-shaped body, said pan-shaped body fixed thereon with three projecting bases spaced apart and extending upward, each said projecting base having the underside of its top end formed with an engage portion; a stop member secured on one of said three projecting bases, said stop member having one side bent and extended upward to form an elastic strip, said elastic strip having its free end formed with a stop portion; a blade having its front end disposed with a combining portion to be assembled on said pan-shaped body of said blade frame, said combining portion of said blade vertically bored with three insert holes to be respectively fitted on said three projecting bases of said blade frame, said engage portion of said projecting base inserted through said insert hole and positioned over said blade, said blade bored with a through hole at a corresponding location of said stop member, said elastic strip of said stop member inserted through said through hole of said blade to let said stop portion of said stop member positioned over said blade; a press board pressed on said combining portion of said blade, said press board bored with three engage holes at the locations corresponding to said three insert holes of said blade, each said engage hole having its rear end expanded to form a receiving hole with a comparatively large diameter; said press board flatly pressed on said combining portion of said blade when said press board is to be assembled on said blade, said stop portion of said stop member pressed to let said elastic strip positioned in said through hole of said blade, and said engage member of said projecting base relatively positioned in said receiving hole of said press board, said engage hole of said press board engaged and secured with said engage portion of said projecting base, and said elastic strip of said stop member engaged in said receiving hole of said press board when said press board is pushed to move backward horizontally to the rear end of said blade, said stop portion of said stop member stuck on the inner wall of said receiving hole for producing effect of stopping; said press board is a triangular board having its three edges respectively fixed with an elastic press strip positioned staggering with said engage holes; said elastic press strip being formed with a connecting edge connected with said press board and a free edge separated from said press board; said elastic press strip being extended downward obliquely from said connecting edge and then bent upward to connect with said free edge; said elastic press strip being protruded out of the underside of said press board; and said elastic press strip producing reverse elastic force to press against said blade when said elastic press strip is pressed on said blade.