초록 ▼

A solenoid actuated blind rivet tool having pulling impulse intensifying apparatus co-acting with the mandrel pulling mechanism. One type of impulse intensifying mechanism is a slidable connection of the tool\s nose housing, housing the assembly for engaging and tensioning the mandrel, and power cha

A solenoid actuated blind rivet tool having pulling impulse intensifying apparatus co-acting with the mandrel pulling mechanism. One type of impulse intensifying mechanism is a slidable connection of the tool\s nose housing, housing the assembly for engaging and tensioning the mandrel, and power chamber which comprises the remainder of the tool housing, which power chamber carries a solenoid for powering the tool. The solenoid pulls the nose housing rearwardly until it impacts against the power chamber, creating a high-magnitude impulse force to break the mandrel. In lieu of a slidably mounted nose piece, the tool may include a member linked to the pulling mechanism and a ram which is driven against the member by the solenoid thereby creating an impulse force which is transmitted to the pulling mechanism.

대표청구항 ▼

An electromagnetically powered blind rivet setting tool comprising: rivet engaging means for engaging a rivet mandrel sliding element means for moving with said rivet engaging means between advanced and retracted positions, said sliding element means comprising a nose housing in which said rivet eng

An electromagnetically powered blind rivet setting tool comprising: rivet engaging means for engaging a rivet mandrel sliding element means for moving with said rivet engaging means between advanced and retracted positions, said sliding element means comprising a nose housing in which said rivet engaging means is located; stop means for colliding with said sliding element means when said rivet engaging means reaches the retracted position to provide an impulse force, said stop means comprising a sleeve, said nose housing being slideably mounted thereto; solenoid means linked to said rivet engaging means for moving said rivet engaging means and sliding element means and adapted such that upon energizing said solenoid means, said sliding element means moves with said rivet engaging means from the advanced to the retracted position; wherein said sliding element means and rivet engaging means have sufficient mass, and said solenoid means has sufficient pulling force to accelerate said sliding element means and rivet engaging means such that upon collision with said stop means a sufficiently large impulse force is created to break the rivet mandrel.