1. A DEVICE FOR STORING AND HANDLING VEHICLE TIRE ASSEMBLIES PRIOR TO CURING THEREOF, COMPRISING A RIGID FRAME HAVING A SUBSTANTIALLY UPRIGHT PORTION AND AN ELONGATED RIGID SUBSTANTIALLY HORIZONTAL ARM CARRIED BY SAID UPRIGHT FRAME PORTION, SAID ARM HAVING A SHEET METAL BODY OF SUBSTANTIALLY UNIFORM CROSS-SECTIONAL SHAPE THROUGHOUT ITS LENGTH CHARACTERIZED BY AN UPPER CENTRAL PORTION OF SUBSTANTIALLY ARCUATE SHAPE AND OF LARGE RADIUS, SIDE PORTIONS OF SUBSTANTIALLY ARCUATE SHAPE AND OF SMALLER RADIUS AND MERGING WITH SAID CENTRAL PORTION AND A LONGITUDINAL SPACED INTURNED FLANGE PROJECTING UPWARDLY FROM THE LOWER INNER MARGIN OF EACH SIDE PORTION, SAID ARM TERMINATING IN A CUP-SHAPED END PART HAVING AN EDGE OF THE SAME SIZE AND SHAPE AS AN END EDGE OF SAID ARM BODY AND WELDED THERETO, SAID ARM BEING WELDED TO SAID UPRIGHT AT THE MARGIN OF THE END OPPOSITE SAID CUP-SHAPED ARM PART.