| 摘要 |
A trigger assembly for a power fastener driving tool having a housing, a control valve mounted to the housing and a reciprocating workpiec e contacting element associated with the housing, includes a trigger member being pivotally engaged en the housing and having a pair of spaced walls, an actuation lever having a free end and a pivot end pivotally engaged on at least one of the walls, the free end being constructed and arranged for engaging the workpiec e contacting element, and a biasing element for biasing the lever and the trigger away from the valve. At least one of the walks are configured for receiving the pivot end and for defining two positions for the lever, a first position whi ch places the free end farther from the workpiece contacting element, and a second position which places the free end closer to the workpiece contacting element, and th e lever being selectively positionable in either the first position or the second position and being held in the selected position by the biasing element.
|
