Patent ID: 6722047
Filing Date: 2004-04-20
Classification: B23D,B25F,B27G

Abstract:
A tool guard attachment for a rotary hand tool of the type which has a housing with a nose portion with an opening in which an output shaft is located, said attachment comprising:a guard housing having an enlarged guard portion for surrounding a substantial portion of a generally flat circular tool implement mounted to the attachment, and a mounting portion extending from the guard portion for attaching the guard housing to the rotary hand tool; a lower guard attached to said guard portion, said lower guard having extensions on opposite sides of the circular tool implement to protect a user from injury, said lower guard being normally biased away from said guard portion and being retractable by contact from a work surface as the circular tool implement is brought into engagement with a work piece surface; an arbor shaft assembly including an elongated rotatable arbor shaft contained in said guard housing, said circular tool implement being mounted to said arbor shaft; and, a drive shaft assembly including an elongated rotatable drive shaft contained in said mounting portion; said drive shaft assembly being operably connected to said arbor shaft assembly so that both of said drive and arbor shafts rotate together, said drive shaft being oriented at an angle relative to said arbor shaft that is less than about 20 degrees.