Abstract: A percussive massage device includes an upper half housing, an electric motor, a lower half housing, and a handle. In response to activating the motor, the eccentric counterweight rotates. And in turn, the link converts the rotational motion of the counterweight into a reciprocating linear motion of the follower. The application head strongly moves back and forth to treat body stress or pain of a user.

Abstract: A massage gun includes a triangular handle chamber, a head chamber, and a ball-shaped components chamber formed between the handle and the head chamber; three rechargeable batteries in three parts of the handle chamber respectively; an electric motor in the components chamber; a cam on a motor shaft of the motor and including a main body and an eccentric, cylindrical rod; a linkage in the components chamber and including first and second holes; a first bearing on the cylindrical rod and inserted in the second hole; a second bearing in the first hole; a bearing seat in a joining portion of the components chamber and the head chamber; a bearing sleeve in the head chamber; a reciprocating sleeve engaged with the second bearing and put on the bearing sleeve; and a controller in the components chamber and electrically connected to the motor, the rechargeable batteries, and an on/off switch.

Abstract: A percussive massage device includes an upper half housing, an electric motor, a lower half housing, and a handle. In response to activating the motor, the eccentric counterweight rotates. And in turn, the link converts the rotational motion of the counterweight into a reciprocating linear motion of the follower. The application head strongly moves back and forth to treat body stress or pain of a user.