| 20110271786 | MECHANICAL JOINT - A mechanical joint includes a first axial bracket, a first bearing, a second bearing, a sleeve, a second axial bracket, and an anti jamming mechanism. The first axial bracket includes a rotary shaft. The first bearing, the second bearing, and the sleeve sleeve on the rotary shaft of the first axial bracket in turn, the sleeve being sandwiched between the first and second bearings. The second axial bracket is rotatably assembled to the first axial bracket via the first and second bearings. The anti jamming mechanism is resiliently assembled within the second axial bracket and sleeves on the sleeve. One end of the anti jamming mechanism resists the second axial bracket and the opposite second bearing. | 11-10-2011 |