Prong-attached garment fasteners devices with backing members

In a pronged garment fastener and backing member combination, a backing member comprising:

• a. a sheet-metal disc constituting a body portion including a spherically curved shallow dished configuration having a convex exterior surface and a concave interior surface with a recess provided by the concavity of said concave interior surface;
• b. tongue elements provided by diametrically opposed integral lugs extending radially inwards from the periphery towards the center of the disc;
• c. said tongue elements lying within said recess and disposed at an angle with respect to each other;
• d. apertures in said tongue elements to register with prongs of the pronged garment fastener;
• and
• e. groove formations in said tongue elements extending longitudinally from said apertures and toward the center of said disc;
• f. said tongue elements having continuous edge portions extending from said periphery in substantially close proximity of said interior surface and said groove formations co-operating with the opposed concave interior surface to provide pockets disposed at an angle with respect to each other and adapted to receive and closely confine outer end portions of the prongs and promote a flat surface contact between the prongs and said interior surface;
• g. securing the fastener to garment material, said prongs being forced through the garment material so as to pass into said apertures and to be deflected into said pockets by forcible engagement with the opposed said concave interior surface of the disc and thereby to be clenched causing the outer end portions to be bent over the tongue elements at said apertures.