Patent ID: 7645249

Claim:
A fixing structure of a treatment head including a main body equipped with wheels in contact with a rail installed on a guide groove in a rolling manner, and a head equipped with a plurality of acupressure protrusions which are installed on an upper portion of the main body so as to be separated from each other in order to give a predetermined pressure to a spine, the fixing structure comprising: a pair of fixing units which are provided on respective ends of the head for fixing the head to the main body, each of the fixing units having a height less than a distance between the head and the main body; wherein each of the pair of fixing units includes: a ball bearing; a ball bearing member which is disposed at the end of the head so as to be perpendicular to the upper portion of the main body and in which part of the ball bearing is inserted; a cover member fixed to the upper portion of the main body and provided with a trench-type groove extending in a vertical direction so that the other part of the ball bearing is inserted in the trench-type groove, the ball bearing moving in the vertical direction; and a plurality of elastic supports provided between a lower portion of the head and the upper portion of the main body.