Massage device

A massage device, comprising:

• (a) a base cover having a longitudinal axis and a plurality of guiding rails formed parallel to the longitudinal axis;
• (b) a rack mounted to the base cover and paralleled to the plurality of guiding rails;
• (c) a carriage having a chassis member and a shield member placed over the chassis member to form a chamber therebetween, wherein the chassis member has a plurality of grooves formed such that when the carriage is engaged with the base cover, the plurality of guiding rails is received in the plurality of grooves of the chassis member and the carriage is longitudinally movable back and forth along the plurality of guiding rails of the base cover;
• (d) a transmission assembly received in the chamber and secured in the carriage, having a motor 4 having an output shaft, a worm mechanically coupled with the output shaft of the motor, a worm wheel meshing with the worm, a first gear meshing with the worm, a first pinion coaxially extended under the first gear, a second gear meshing with the first pinion, a second pinion coaxially extended under the second gear, a third gear meshing with the second pinion, and a third pinion coaxially extended under the third gear and meshing with the rack such that when the motor is activated, it drives the worm to rotate, the rotation of the worm results in the rotations of the worm wheel and the first gear, the rotation of the first gear results in, in turn, the rotations of the first pinion gear, the second gear, the second pinion gear, the third gear and the third pinion, thereby moving the carriage along the plurality of the guiding rails of the base cover;
• and
• (e) a massage assembly comprising a driving shaft and a pair of massage members, wherein the driving shaft has a first end portion and an opposite, second end portion defining a shaft body therebetween, and is coaxially engaged with the worm wheel by the shaft body such that when the worm wheel rotates, the driving shaft rotates accordingly, and wherein each massage member comprises:
• (i) an eccentric wheel having a first surface, an opposite, second surface, a bolt shaft protruded eccentrically from the first surface and a recess formed on the second surface for receiving one of the first and second end portions of the driving shaft such that when the driving shaft rotates, the eccentric wheel rotates accordingly so that the bolt shaft moves circumferentially around the recess;
• (ii) a massage bracket having a first end portion and a second end portion defining a bracket body therebetween, a guiding bar protruded laterally from the first end portion, and a bracket recess laterally formed in the bracket body for receiving the bolt shaft of the eccentric wheel such that when the bolt shaft of the eccentric wheel moves circumferentially, the massage bracket moves accordingly;
• (iii) a guiding block mounted onto the shield member of the carriage in relation to the massage bracket, having a crescent-like guiding slot for receiving the guiding bar of the massage bracket such that when the massage bracket moves in response to the circumferential movement of the bolt shaft of the eccentric wheel, the guiding bar of the massage bracket moves back and forth along the crescent-like guiding slot;
• and
• (iv) a massage foot mounted on the second end portion of the massage bracket such that when the guiding bar of the massage bracket moves back and forth along the crescent-like guiding slot of the guiding block, the massage foot taps back and forth along an arc line corresponding the crescent-like guiding slot of the guiding block.