Angular adjusting mechanism for use in massage device of massage machine

An angular adjusting mechanism for use in a massage device of a massage machine comprising:

• a frame which comprises a rotary shaft axially disposed thereon;
• a coupling member which is axially fixed at a rear portion of said frame, and
• comprises a bush pivotally mounted at said frame;
• and
• a swing seat axially mounted on said frame, and comprises:
• a rubbing mechanism comprising a first motor for driving said rotary shaft to rotate;
• a transmitting assembly;
• a rubbing shank coupled with said transmitting assembly;
• two swing arms pivotally affixed to two ends of said rubbing shank respectively, wherein each of said swing arms comprises an upper and a lower massage rollers attached at a front end thereof;
• a second motor mounted in said frame;
• a screw vertically provided on said swing seat;
• and
• a pulley set operatively coupled between said second motor and said screw for driving said screw to displace vertically, wherein an end of said screw is arranged to screw with said bush for said vertical displacement along said bush, such that during a rotation of said screw, said screw is arranged to vertically displace along said bush and actuate said swing seat to axially rotate along said frame for adjusting a swing angle and increasing a support strength of said upper and lower massage rollers, wherein when said screw displaces upwardly along said bush, said screw pulls said rear end of said swing seat to swing upwardly, so that said rotary shaft becomes a fulcrum of said swing seat to swing forward and backward in a stable manner.