Pro-Techtor International Services
Trigger switching structure of contact/full sequential actuation fastening tool
 A trigger switching structure of a contact/full sequential actuation fastening tool, being used in a trigger pivotally mounted between a safety yoke and a trigger valve both of the fastening tool, the switching structure is comprised at least of a receiving seat, a stop piece and a spring. The receiving seat is provided therein a positioning rod and a supporting rod, the stop piece is pivotally mounted on the receiving seat by the positioning rod, and the receiving seat can be combined with the trigger with the supporting rod; the spring is mounted straddling the trigger and the receiving seat to allow a user to move the receiving seat to change the contact position of the stop piece and the safety yoke of the fastening tool to choose a contact actuation or a full sequential actuation position desired for fastening. By embedding the above members in the trigger, occupied space can be reduced, and accidental touching for fastening can be effectively eliminated, safety of use of the fastening tool can thus be increased. 
B
B25C
inventional
Yun-Chung
Lee