20150343616 | HAMMERING SET FOR AN IMPACT TOOL - A hammering set has a rotating portion including a sidewall, two end walls connected to the sidewall, and at least one pivot portion in an accommodating space of the rotating portion. Two corresponding holes are disposed on the sidewall and communicating with the accommodating space. A shaft hole is disposed on one the end wall, a connecting portion is disposed on the other end wall for a rotating shaft. A hammering block has a through hole and a pivoting part on the pivoting portion and only swingable about the pivoting portion. A transmission shaft penetrates the shaft hole and the through hole, is rotatably disposed in the rotating portion, and is intermittently actuatable by each hammering block. A sealing assembly is provided on the rotating portion, at least seals the holes and is sealed between an inner wall of the shaft hole and the transmission shaft. | 12-03-2015 |