Patent ID: 7306246
Filing Date: 2007-12-11
Classification: A61H

Abstract:
1. A walker apparatus comprising: a. a first front support leg assembly and a second front support leg assembly, each of said first front support leg assembly and said second front support leg assembly including: b. a first sliding joint comprising a body including a bore, a leg pivot link, an upper front cross brace link, and a central joint pivot link, wherein said central region of said elongated member of said first front support leg assembly is disposed within said bore of said first sliding joint, such that said first sliding joint is slidable along said central region of said elongated member of said first front support leg assembly; c. a second sliding joint comprising a body including a bore, a leg pivot link, an upper front cross brace link, and a central joint pivot link, wherein said central region of said elongated member of said second front support leg assembly is disposed within said bore of said second sliding joint, such that said second sliding joint is slidable along said central region of said elongated member of said second front support leg assembly; d. a central hinge joint comprising a first arm and a second arm, each of said first and second arms comprising an inner end, wherein said inner end of said first arm is hingably connected to said inner end of said second arm; and each of said first and second arms comprising an outer end including a pivot link, said pivot link of said first arm being pivotably connected to said central joint pivot link of said first sliding joint, and said pivot link of said second arm being pivotably connected to said central joint pivot link of said second sliding joint; e. a first rear support leg assembly and a second rear support leg assembly, each of said first rear support leg assembly and said second rear support leg assembly comprising an elongated member including a lower end, a central region, and an upper end, wherein: f. a first support member comprising a front end including a front link connected to said triangulation link of said first front support leg assembly, and a rear end including a rear link connected to said triangulation link of said first rear support leg assembly; g. a second support member comprising a front end including a front link connected to said triangulation link of said second front support leg assembly, and a rear end including a rear link connected to said triangulation link of said second rear support leg assembly; h. a front leg collapsing assembly comprising a first front cross brace and a second front cross brace, each of said first front cross brace and said second front cross brace comprising a lower end, a central pivot connection region, and an upper end, wherein: i. a rear leg collapsing assembly comprising a first rear cross brace and a second rear cross brace, each of said first rear cross brace and said second rear cross brace comprising a lower end, a central pivot connection region, and an upper end, wherein: