Abstract A slide-on or step-in slipper or sandal of the disposable type to be formed from a flat blank, preferably of foamed polyethylene sheet material, having a sole member with flat toe, heel and instep portions and a pair of opposed arch embracing strap members extending from the sides of the instep. The inner edges of the straps are foldably connected to the instep only at front and rear portions thereof, the material of the blank therebetween being severed along elongated arcuate slit lines. Conventional shoe laces join the strap outer edges to form a loop to embrace the foot. The slits provide expandable openings for adjustment of the loop on feet of varying shapes and an efficient slipper form for temporary or extended periods of use. The sole of the blank conforms to the normal curvature of a foot and the straps are laced to overlie either face of the sole for use on the right or left foot.
A flat blank of highly tear-resistant sheet material to be folded into an improved disposable slipper of the step-in type and comprising a sole member having a front toe outline and rear heel outline and therebetween an instep section having laterally extending straps provided with means at their outer edges for lacing said straps together, said blank along the inner sides of the sole instep section having elongated slits severing the material of the blank intermediate front and rear portions joining said straps to the section and providing a pair of hinge areas for folding the straps and adjustably lacing the outer edges thereof in arched overlying relation to either surface of said instep section of the sole, said toe and heel outlines defining at opposite surfaces of the blank a slightly angled relationship generally conforming to the normal curvature of both a right and left foot respectively.
Claim 2
Dependent Claim
148 words
A flat blank of highly tear-resistant sheet material to be folded into an improved disposable slipper of the step-in type and comprising a sole member having a front toe outline and rear heel outline and therebetween an instep section having laterally extending straps provided with means at their outer edges for lacing said straps together, said blank along the inner sides of the sole instep section having elongated slits severing the material of the blank intermediate front and rear portions joining said straps to the section and providing a pair of hinge areas for folding the straps and adjustably lacing the outer edges thereof in arched overlying relation to either surface of said instep section of the sole, said toe and heel outlines defining at opposite surfaces of the blank a slightly angled relationship generally conforming to the normal curvature of both a right and left foot respectively.
Claim 3
Dependent Claim
39 words
The blank of claim 1, in which, said elongated slits are arcuately cut, the forward ends thereof lying rearwardly and in adjacent laterally inward relation with respect to lines projecting a continuation of the sides of said toe portion.
Claim 4
Dependent Claim
79 words
The blank of claim 2 in which, said lacing means includes a series of openings at the outer edges of the straps, and a pair of openings is provided in said toe portion spaced forwardly adjacent said sole instep section for looping the center of a shoe lace engaging said strap edge openings, thereby providing means engageable between a wearer''s toes as thong elements and adjustable for drawing said toe portion of the sole upwardly against a wearer''s toes.
Claim 5
Dependent Claim
19 words
The blank of claim 3, in which, said blank is formed of an extruded sheet of polyethylene foam material.