Adjustable mounting bracket for attachment to a trapezoidal rib

[0001]FIG. 1 is a front, top, right perspective view of an adjustable mounting bracket;

[0002]FIG. 2 is a front elevation view of the adjustable mounting bracket;

[0003]FIG. 3 is a rear elevation view of the adjustable mounting bracket;

[0004]FIG. 4 is a right side elevation view of the adjustable mounting bracket;

[0005]FIG. 5 is a left side elevation view of the adjustable mounting bracket;

[0006]FIG. 6 is a top plan view of the adjustable mounting bracket;

[0007]FIG. 7 is a bottom plan view of the adjustable mounting bracket;

[0008]FIG. 8 is a front, top, right perspective view of the adjustable mounting bracket provided in a position of use attached to a trapezoidal rib; and,

[0009]FIG. 9 is a front, top, right exploded perspective view of the adjustable mounting bracket.

[0010]The dash-dash broken lines depict portions of the adjustable mounting bracket that form no part of the claimed design. The broken lines showing the adjustable mounting bracket, associated components and a trapezoidal rib in FIG. 8 depicts environmental subject matter only and forms no part of the claimed design.