Patent ID: 8974404
Filing Date: 2015-03-10
Classification: A61H

Abstract:
1. A massage device comprising: an outer housing including an assembling space and an arc-shaped groove formed at one side thereof; an inner housing formed with a receiving space and received in the assembling space of the outer housing; a drive motor including a drive shaft with a toothed portion, with the drive shaft obliquely arranged with respect to the inner housing, with the toothed portion of the drive shaft inserted in the receiving space of the inner housing; a gear assembly including a first gear wheel, a second gear wheel, and a third gear wheel disposed in the receiving space of the inner housing, with the first gear wheel engaged with the toothed portion of the drive shaft of the drive motor and drivingly connected to the second gear wheel, with the third gear wheel engaged with the second gear wheel; a rotary shaft inserted in the third gear wheel; a one-way bearing mounted at one end of the rotary shaft; a drive gear wheel sleeved on the one-way bearing and drivingly connected to the rotary shaft; first massage member having one end inserted in the inner housing, wherein the one end of the massage member has a guiding portion having an outer periphery with round cross sections parallel to the rotary shaft, with the guiding portion slideably engaged with another end of the rotary shaft, for movement parallel to the rotary shaft, with the first massage member having another end formed with a massage portion which extends out of the outer housing; and a linear motion device comprising a screw and a linkage device rotatable mounted on the screw and engaged with the drive gear wheel, with the screw disposed in the receiving space of the inner housing, wherein both ends of the screw extend out of the inner housing, with the linkage device provided with a drive portion inserted in a threaded portion formed on an outer surface of the screw, with the arc-shaped groove being arc-shaped in a plane defined by the screw and the rotary shaft, with the guiding portion received in the arc-shaped groove and moveable in a direction parallel to the screw and in a direction perpendicular to the screw.