A fixing device for a reciprocal fixing of two bodies to each other, comprising the reciprocal fixing of a panel to a wall or of two panels to each other, the fixing device comprising:
- a male element comprising an anchoring base and an engaging element, the anchoring base having a rear surface adapted for leaning and fixing onto one of the two bodies and a front surface from which the engaging element protrudes;
- and
- a female element comprising an anchoring base having a rear surface adapted for leaning and fixing onto the other one of the two bodies and a receiving channel adapted for receiving the engaging element of the male element, so that the engaging element, when inserted into the receiving channel, is locked in a snap and detachable manner inside the receiving channel so as to enable a releasable coupling of the two bodies, with the male element and the female element disposed between the two bodies,
- wherein the fixing device enables a selection of two or more different distances along an axis defined by the rear surface of the male element and the rear surface of the female element when coupled to each other and an adjustment of a mutual distance between the two bodies after coupling,
- wherein the female element is formed by a first element defining a central hole and a second element comprising the receiving channel, within which the engaging element is locked in the snap manner, the receiving channel becoming inserted within the central hole of the first element, the first and second element being rotatably coupled to each other so that a reciprocal rotation causes a shifting of the second element with respect to the first element along the axis and vice versa,
- wherein the first element defines a sliding track having a predetermined inclination, the second element having an appendix, which is positioned onto the sliding track when the second element is coupled with the first element so that, when the second element rotated by a predetermined amount with respect to the first element or vice versa, the appendix moves along the sliding track, the predetermined inclination of which causes, together with the rotation, also the shifting along the axis of the second element with respect to the first element and vice versa,
- wherein the first element defines four sliding tracks that are circumferentially offset so as to delimit a circular path, each sliding track being equal to the other sliding tracks and having the same inclination, the second element having four appendixes, which extend radially from a cylindrical body forming the receiving channel and each of which becomes positioned in a respective one of the four sliding tracks, and
- wherein the sliding track comprises a through notch passing through an entire thickness of the sliding track and extending along at least part of the sliding track.