Patent ID: 7044235
Filing Date: 2006-05-16
Classification: B24B,B25F

Abstract:
1. A pneumatic tool with settable safety function, comprising: a main body in which a cylinder chamber is formed for mounting a pneumatic cylinder therein; a flow way being formed in the main body and communicating with the cylinder chamber for conducting high-pressure air into the pneumatic cylinder; a switch disposed in the main body and operable between an open position and a closed position, whereby when the switch is not shifted, the switch is kept in the closed position to block the flow way; a safety device including a slide member and a linking member, the slide member being disposed around the main body and having a hollow section, one end of the slide member being formed with a transverse pivot hole communicating with the hollow section, the slide member being movable between an activation position and a non-activation position, the linking member being connected with the slide member, whereby when the slide member is positioned in the non-activation position, the linking member cannot drive the switch, while when the slide member is positioned in the activation position, the linking member can drive the switch, in normal state, the slide member being kept in the non-activation position; a trigger, one end of which is pivotally connected with the main body, whereby when the slide member is positioned in the activation position, the trigger can be pulled to drive the linking member to shift the switch into the open position; and a switching button having a button body, a cam section being formed on a circumference of the button body, another section of the button body being a common section, the switching button being rotatably mounted in the pivot hole with the button body exposed to the hollow section of the slide member and contacting with the circumference of the main body, whereby when the cam section of the switching button contacts with the circumference of the main body, the safety device is positioned in the non-activation position, while when the common section of the button body contacts with the circumference of the main body, the safety device is positioned in the activation position.