초록 ▼

A single cycle/multiple cycle dual mode pneumatically driven fastener driving tool utilizes a resettable valve, trigger apparatus, work contact element (WCE) and a mode selecting trigger blocking pin. With the pin in place, the trigger must be released then depressed for each tool actuation. The too

A single cycle/multiple cycle dual mode pneumatically driven fastener driving tool utilizes a resettable valve, trigger apparatus, work contact element (WCE) and a mode selecting trigger blocking pin. With the pin in place, the trigger must be released then depressed for each tool actuation. The tool is actuated only when the WCE is also depressed but without regard to the sequence of trigger and WCE depression. In a multiple cycle mode, the pin is removed and the actuation valve is reset either by trigger extension, or by WCE extension for “bottom contact”operation. The tool can be activated by full trigger release and depression while the WCE is held against a work surface. No particular sequence of WCE and trigger depression is required in this second mode. Apparatus and methods are disclosed.

대표청구항 ▼

A pneumatic tool having a trigger valve and a trigger apparatus for actuating the trigger valve, said trigger apparatus comprising: a depressible first trigger lever pivotally mounted to the tool; a secondary trigger lever for engaging an actuator of said trigger valve; and pivotally mounted at a fi

A pneumatic tool having a trigger valve and a trigger apparatus for actuating the trigger valve, said trigger apparatus comprising: a depressible first trigger lever pivotally mounted to the tool; a secondary trigger lever for engaging an actuator of said trigger valve; and pivotally mounted at a first end to the first trigger lever; and a pin disposed in said tool in one position for pivotally supporting a second end of said secondary trigger lever in one operational mode of said tool; said pin being removable from said one position, out of interference with said secondary trigger lever, to permit operation of said tool in another operational mode.