Patent ID: 8348118
Filing Date: 2013-01-08
Classification: B25C

Abstract:
1. A method of alternatively operating a fastener-driving tool, having a trigger control mechanism mounted thereon, in accordance with both sequential and bump-firing modes of operation, comprising the steps of: mounting a workpiece contacting element upon a housing of said fastener-driving tool for movement along a predetermined path; mounting a control valve upon said housing of said fastener-driving tool; movably mounting a trigger member upon said housing of said fastener-driving tool; movably mounting a first end portion of an actuation lever upon said trigger member, for actuating said control valve of said fastener-driving tool, upon said trigger member such that a second end portion of said actuation member is adapted to be operatively engaged with said workpiece contacting element when said workpiece contacting element is moved along said predetermined path toward said actuation lever in response to the depression of said workpiece contacting element against a workpiece; providing a single aperture within said fastener-driving tool housing; providing a pair of separate, transversely spaced apertures within said trigger member; removably mounting a pivot pin upon said fastener-driving tool for disposition within said single aperture of said fastener-driving tool housing and for selective disposition in an alternative manner with said pair of separate, transversely spaced apertures of said trigger member such that when said pivot pin is disposed within a first one of said paid of separate, transversely spaced apertures defined upon said trigger member and disposed within said single aperture defined within said fastener-driving tool housing, said trigger member, and said actuation lever mounted upon said trigger member, will be mounted at a first one of two different positions upon said fastener-driving tool housing such that said second end portion of said actuation lever will be disposed at a first position relative to said predetermined path of movement of said workpiece contacting element of said fastener-driving tool so as to permit said actuation lever to actuate said control valve of said fastener-driving tool only when said trigger member is actuated to its operative position subsequent to the depression of said workpiece contacting element against a workpiece whereby a sequential firing mode of operation of said fastener-driving tool can be achieved; removing said pivot pin from said single aperture defined within said fastener-driving tool housing and from said first one of said pair of separate, transversely spaced apertures defined within said trigger member; and inserting said pivot pin into said second one of said pair of separate, transversely spaced apertures defined within said trigger member, such that said pivot pin is also re-inserted into said single aperture defined within said tool housing, whereby said trigger member, and said actuation lever mounted upon said trigger member, are now mounted at a second one of said two different positions upon said fastener-driving tool such that said actuation lever will be disposed at a second position relative to said predetermined path of movement of said workpiece contacting element of said fastener-driving tool so as to permit said actuation lever to always actuate said control valve of said fastener-driving tool regardless of when said trigger member is actuated to its operative position with respect to the depression of said workpiece contacting element against the workpiece whereby a bump-firing mode of operation of said fastener-driving tool can be achieved.