Patent ID: 9616561
Date: 2017-04-11
CPC Classifications: B25C

Claim:
1. A nail gun comprising: a body having a nail path formed in a front end portion thereof, an air chamber, a main flowpath in fluid communication with said air chamber, and an air passage guiding flow of air into said main flowpath; a nail striking member disposed in said nail path and drivable by air pressure in said air chamber to move along an X-axis for performing a nail striking operation; a magazine connected with said body and including a magazine body adapted for receiving a plurality of nails, and a nail pushing unit movable between upper and lower limit positions and adapted for pushing and moving the nails into said nail path one at a time, said upper limit position being proximate to said nail path, said lower limit position being distal from said nail path; a valve unit disposed in said air passage and cooperating with said body to divide said air passage into an intake chamber and an exhaust chamber that is adapted to be in fluid communication with the outside, said valve unit being in fluid communication with said main flowpath and said air passage and being operable to switch between an unblocking state, where fluid communication between said intake chamber and said air chamber is permitted and where fluid communication between said exhaust chamber and said air chamber is prevented, and a blocking state, where the fluid communication between said intake chamber and said air chamber is prevented and where the fluid communication between said exhaust chamber and said air chamber is permitted; and a detector having a control portion, a detecting portion adapted to be contactable with one of said nail pushing unit and the nails, and an intermediate portion disposed between said control portion and said detecting portion and connected pivotally to said body, said control portion extending into said exhaust chamber and being contactable with said valve unit such that, when there is not any of the nails in said nail path, or when said nail pushing unit is moved to said upper limit position, said valve unit is controlled by said control portion of said detector to be in said blocking state.