BACK MASSAGE DEVICE PROVIDED TO CHAIR TYPE MASSAGE MACHINE AND CHAIR TYPE MASSAGE MACHINE WITH SAME

摘要

A back massage device capable of causing a massage mechanism to protrude forward and returning the massage mechanism to the original position, wherein the back massage device is configured so that the massage effect does not deteriorate, the massage mechanism can be moved forward and backward a sufficient amount, and the back massage device is not mechanically large and complex. A back massage device (4) provided to a chair type massage machine (1) is provided with: a massage mechanism (10) having a pair of left and right massage members (17); a base member (12) for pivotably supporting the mechanisms (10) at the lower end side thereof; a vertical movement mechanism (13) for vertically moving the base member (12); an extension/retraction operation mechanism (14) for driving and rocking the massage mechanism (10); and a rocking limiting mechanism (15) for limiting the pivoting angle of the massage mechanism (10) so that, at a raised position, the upper ends of the massage members (17) protrude forward and, at a lowered position, the lower ends of the massage members protrude forward.