Patent ID: 7658567

Claim:
An automatic pencil comprising: a pencil shaft having a hollow interior, an upper end and a lower end; a clipping device mounted within said pencil shaft and having a top provided with a combination rod; a pencil head connected to a lower end of said pencil shaft, said pencil head having an upper end connected to said clipping device; a guiding tube mounted on said clipping device, said guiding tube having a bottom provided with a mounting rod, said guiding tube having an upper end provided with a guiding arch face which is extended to a through hole formed at a center of said guiding tube for passage of a pencil head; a resilient member connected between said mounting rod of said guiding tube and said combination rod of said clipping device; a guiding rod positioned within said guiding tube and formed with a guiding hole; a pencil lead cylinder inserted into said hollow interior of said pencil shaft, said pencil lead cylinder being tubular in shape, said pencil head cylinder having a lower end formed with a guiding arch surface; and a sealing cap engageable with a lower end of said pencil lead cylinder.