Patent ID: 6336264
Filing Date: 2002-01-08
Classification: B25B,Y10T

Abstract:
An apparatus for releasing a connection bolt arrangement including a connection bolt engaged in an expansion sleeve, said apparatus comprising:first and second levers that are pivotably connected to each other to be relatively pivotable about at least one pivot axis and that each respectively have a respective free end offset from said at least one pivot axis; a stamping actuator that is arranged between and coupled respectively to said first and second levers at a location offset from said at least one pivot axis and that is adapted to actuate said first and second levers to relatively pivot about said at least one pivot axis; and a pulling extraction device mounted adjacent said free end of said first lever; wherein: said first lever includes a first pressing portion adjacent said free end of said first lever, said first pressing portion being adapted to engage and apply a first pressing force against a first end of the expansion sleeve in a first pressing direction when said first and second levers are actuated by said actuator to relatively pivot about said at least one pivot axis; said second lever includes a second pressing portion adjacent said free end of said second lever, said second pressing portion being adapted to engage and apply a second pressing force against a second end of the connection bolt in a second pressing direction opposite said first pressing direction when said first and second levers are actuated by said actuator to relatively pivot about said at least one pivot axis; said pulling extraction device is adapted to be releasably connected to a first end of the connection bolt which is opposite the second end of the connection bolt and which is adjacent to the first end of the expansion sleeve, and said pulling extraction device is adapted to apply a pulling force to the first end of the connection bolt in a pulling direction parallel to and oriented the same as said second pressing direction; said pulling force, said first pressing force, and said second pressing force together are effective to be able to release the connection bolt from the expansion sleeve; said location at which said stamping actuator is arranged is at an actuated end of each of said first and second levers opposite said free end of each of said first and second levers; and said at least one pivot axis is located along said levers between said actuated ends and said free ends.