Single point triangular adjustment system for sandals

Abstract

A novel sport sandal construction capable of immediate tightening or loosening adjustment of all strap portions relative to the foot, with one quick adjustment. A control strap is anchored to a ring on one side of the sole at the ankle region, extends forwardly with a slip fit through a centrally located ring on the forefoot strap at the metatarsal region, then rearwardly to an anchor strap ring on a second anchor strap at the outside of the sole, and then through this ring with a slip fit to double back forwardly and overlap the rearwardly extending portion, where it is adjustably fastened with hook and loop fastener strips. A heel strap also extends between the two anchor strap rings. A simple length adjustment of this control strap simultaneously adjusts not only the length and position of both strap portions on both sides of the foot, but also adjusts the distance between the heel strap and the center of the forefoot strap.

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 
     
       1. A sport sandal comprising: a sole member having a forefoot portion and a heel portion, said forefoot portion including a metatarsal span, and said heel portion including an ankle span;   a forefoot strap anchored to said sole member on opposite sides of said metatarsal span to extend over the metatarsal portion of a foot, and having a ring centrally thereof;   a pair of upstanding anchor straps mounted to said sole member on opposite sides of said ankle span and each having a ring on the upper end thereof;   a heel strap attached at its opposite ends to said anchor strap rings to extend around the heel of a foot;   a control strap attached to and extending from one of said anchor strap rings, forwardly with a slide fit through said forefoot strap ring, and with a portion extending rearwardly from said forefoot strap ring to and through the outer said anchor strap ring with a slide fit, and then having a doubled back portion overlapping said rearwardly extending portion;   said doubled back portion having variable fastening means to said rearwardly extending portion for length adjustment of said control strap, whereby adjustment of the length of said control strap causes said forefoot strap, said heel strap and said control strap to all simultaneously be adjusted to a particular foot on said sole member.   
     
     
       2. The sport sandal in claim 1 wherein said variable fastening means comprises hook and loop strips on said doubled back portion and said rearwardly extending portion. 
     
     
       3. The sport sandal in claim 1 wherein said forefoot strap includes a ring and a doubled back portion to be length adjustable. 
     
     
       4. The sport sandal in claim 2 wherein said anchor strap rings are triangular to each readily accommodate one of said anchor straps, as well as said heel strap and said control strap. 
     
     
       5. The sport sandal in claim 1 wherein said sole member has a medial side and a lateral side, and said control strap is anchored to the one of said anchor rings on said medial side, extends forwardly to a slide fit with said centrally located ring on said forefoot strap, and rearwardly to the other of said anchor rings on said lateral side, and said variable fastening means is on said lateral side of said sole member. .Iadd. 
     
     
       6.  A sport sandal comprising: a sole member having a forefoot portion and a heel portion, said forefoot portion including a metatarsal span, and said heel portion including an ankle span;   a forefoot strap anchored to said sole member on opposite sides of said metatarsal span to extend over the metatarsal portion of a foot, and having a ring centrally thereof;   a pair of upstanding anchor straps mounted to said sole member on opposite sides of said ankle span, a first of said anchor straps having a slide fit means at the upper end thereof for receiving a control strap with a slide fit;   a heel strap attached at its opposite ends to said anchor straps to extend around the heel of a foot;   a control strap attached to and extending from a second of said anchor straps, forwardly with a slide fit through said forefoot strap ring, and with a portion extending rearwardly from said forefoot strap ring to said slide fit means with a slide fit, and then having a doubled back portion overlapping said rearwardly extending portion; and   said doubled back portion having variable fastening means to said rearewardly extending portion for length adjustment of said control strap, whereby adjustment of the length of said control strap causes said forefoot strap, said heel strap and said control strap to all simultaneously be adjusted to a particular foot on said sole member. .Iaddend..Iadd.   
     
     
       7.  The sport sandal in claim 6 wherein said variable fastening means comprises hook and loop strips on said doubled back portion and said rearwardly extending portion. .Iaddend..Iadd.8. The sport sandal in claim 6 wherein said forefoot strap includes a ring and a doubled back portion to be length adjustable. .Iaddend..Iadd.9. The sport sandal in claim 6 wherein said sole member has a medial side and a lateral side, and said control strap is anchored to the one of said anchor straps on said medial side, extends forwardly to a slide fit with said centrally located ring on said forefoot strap, and rearwardly to the other of said anchor straps on said lateral side, and said variable fastening means is on said lateral 
     
     
        side of said sole member. .Iaddend..Iadd.10.  A sport sandal comprising: a sole member having a forefoot portion and a heel portion, said forefoot portion including a metatarsal span, and said heel portion including an ankle span;   a forefoot strap anchored to said sole member on opposite sides of said metatarsal span to extend over the metatarsal portion of a foot, and having a ring centrally thereof;   a pair of upstanding anchor straps mounted to said sole member on opposite sides of said ankle span, a first of said anchor straps having a ring on the upper end thereof;   a heel strap attached at its opposite ends to said anchor straps to extend around the heel of a foot;   a control strap attached to and extending from a second of said anchor straps, forwardly with a slide fit through said forefoot strap ring, and with a portion extending rearwardly from said forefoot strap ring to and through said anchor strap ring on said first anchor strap with a slide fit, and then having a doubled back portion overlapping said rearwardly extending portion; and   said doubled back portion having variable fastening means to said rearwardly extending portion for length adjustment of said control strap, whereby adjustment of the length of said control strap causes said forefoot strap, said heel strap and said control strap to all simultaneously be adjusted to a particular foot on said sole member.   
     
     
        .Iaddend..Iadd.11.  The sport sandal in claim 10 wherein said variable fastening means comprise hook and loop strips on said doubled back portion and said rearwardly extending portion. .Iaddend..Iadd.12. The sport sandal in claim 10 wherein said forefoot strap includes a ring and a doubled back 
     
     
        portion to be length adjustable. .Iaddend..Iadd.13.  The sport sandal in claim 11 wherein said anchor strap ring is triangular to readily accommodate one of said anchor straps, as well as said heel strap and said control strap. .Iaddend..Iadd.14. The sport sandal in claim 10 wherein said sole member has a medial side and a lateral side, and said control strap is anchored to the one of said anchor straps on said medial side, extends forwardly to a slide fit with said centrally located ring on said forefoot strap, and rearwardly to said anchor ring on the other said anchor strap on said lateral side, and said variable fastening means is on said lateral side of said sole member. .Iaddend.