A walker apparatus comprised of a first front support leg assembly, a second front support leg assembly, a first sliding joint, a second sliding joint, a central hinge joint, a first rear support leg assembly, a second rear support leg assembly, a first support member, a second support member, a fro
A walker apparatus comprised of a first front support leg assembly, a second front support leg assembly, a first sliding joint, a second sliding joint, a central hinge joint, a first rear support leg assembly, a second rear support leg assembly, a first support member, a second support member, a front leg collapsing assembly, and a rear leg collapsing assembly. The walker apparatus is adapted to be is collapsed to a compact shape in a continuous collapsing motion.
대표청구항▼
I claim: 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: i. an elongated member including a lower end, a central region, and an upper
I claim: 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: i. an elongated member including a lower end, a central region, and an upper end; ii. a lower front cross brace link; and iii. a triangulation link; 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: i. each of said upper ends of said first rear support leg assembly and said second rear support leg assembly further comprises a pivot link, said pivot link of said first rear support leg assembly being pivotably connected to said leg pivot link of said first sliding joint, and said pivot link of said second rear support leg assembly being pivotably connected to said leg pivot link of said second sliding joint; ii. each central region of said first rear support leg assembly and said second rear support leg assembly further comprises a triangulation link and a lower rear cross brace link; 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. each of said upper ends of said first front cross brace and said second front cross brace further comprises an upper pivot link, said upper pivot link of said first front cross brace being pivotably connected to said upper front cross brace link of said first sliding joint, and said upper pivot link of said second front cross brace being pivotably connected to said upper front cross brace link of said second sliding joint; ii. each of said lower ends of said first front cross brace and said second front cross brace further comprises a lower pivot link, said lower pivot link of said first front cross brace being pivotably connected to said lower front cross brace link of said second front support leg assembly, and said lower pivot link of said second front cross brace being pivotably connected to said lower front cross brace link of said first front support leg assembly; and iii. said central pivot connection region of said first front cross brace is pivotably connected to said central pivot connection region of said second front cross brace; 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: i. each of said upper ends of said first rear cross brace and said second rear cross brace comprises an upper universal joint, said upper universal joint of said first rear cross brace being connected to said first arm of said central hinge joint, and said upper universal joint of said second rear cross brace being connected to said second arm of said central hinge joint; ii. each of said lower ends of said first rear cross brace and said second rear cross brace further comprises a lower pivot link, said lower pivot link of said first rear cross brace being pivotably connected to said lower rear cross brace link of said second rear support leg assembly, and said lower pivot link of said second rear cross brace being pivotably connected to said lower rear cross brace link of said first rear support leg assembly; and iii. said central pivot connection region of said first rear cross brace is pivotably connected to said central pivot connection region of said second rear cross brace. 2. The walker apparatus as recited in claim 1, wherein said central hinge joint is a locking hinge joint deployable from a closed position to an open position, and wherein said central hinge joint is lockable in the open position, thereby enabling the locking of said walker apparatus in an open position. 3. The walker apparatus as recited in claim 2, wherein said central hinge joint further comprises: a. a first arm comprising an inner end comprised of a first housing half including a first gear socket; b. a second arm comprising an inner end comprised of a second housing half including a second gear socket, said first housing half pivotably joined to said second housing half, and said first gear socket and said second gear socket forming a cavity; c. a gear disposed in said cavity and including at least one gear tooth that is engagable with said first housing half and said second housing half to lock said central hinge joint in the open position. 4. The walker apparatus as recited in claim 3, wherein said central hinge joint further comprises a spring disposed between said gear and said first housing half, and a button in contact with said gear. 5. The walker apparatus as recited in claim 3, wherein said central hinge joint further comprises a first socket formed in said first housing half, and a second socket formed in said second housing half. 6. The walker apparatus as recited in claim 3, wherein said central hinge joint further comprises a first boss formed in said first housing half for attachment to said upper universal joint of said first rear cross brace, and a second boss formed in said second housing half for attachment to said upper universal joint of said second rear cross brace. 7. The walker apparatus as recited in claim 3, wherein said central hinge joint is in said open position. 8. The walker apparatus as recited in claim 3, wherein said central hinge joint is in a closed position. 9. The walker apparatus as recited in claim 3, wherein said walker apparatus is collapsible from an open state to a collapsed state in a single continuous motion by moving said central hinge joint from said open position to a closed position. 10. The walker apparatus as recited in claim 1, further comprising a seat assembly joined to said first sliding joint and said second sliding joint. 11. The walker apparatus as recited in claim 10, wherein said seat assembly is pivotably joined to said first sliding joint and said second sliding joint. 12. The walker apparatus as recited in claim 11, wherein said seat assembly comprises a first seat arm pivotably joined to said first sliding joint, a second seat arm pivotably joined to said second sliding joint, and a fabric web joined to said first seat arm and said second seat arm. 13. The walker apparatus as recited in claim 10, wherein said first sliding joint further comprises a first support hook adapted for receiving and supporting said first seat arm, and said second sliding joint further comprises a second support hook adapted for receiving and supporting said second seat arm. 14. The walker apparatus as recited in claim 13, wherein said first support hook is integrally formed with said first sliding joint, and said second support hook is integrally formed with said second sliding joint. 15. The walker apparatus as recited in claim 10, further comprising a back support strap including a first end attached to said upper end of said elongated member of said first front support leg assembly, and a second end attached to said upper end of said elongated member of said second front support leg assembly. 16. The walker apparatus as recited in claim 15, wherein said back support strap is comprised of a fabric web. 17. The walker apparatus as recited in claim 1, further comprising a first caster operatively connected to said lower end of said elongated member of said first front support leg assembly, and a second caster operatively connected to said lower end of said elongated member of said second front support leg assembly. 18. The walker apparatus as recited in claim 17, further comprising a first wheel assembly operatively connected to said lower end of said elongated member of said first rear support leg assembly, and a second wheel assembly operatively connected to said lower end of said elongated member of said second rear support leg assembly. 19. The walker apparatus as recited in claim 18, wherein said first rear wheel assembly further comprises a first brake assembly, and said second rear wheel assembly further comprises a second brake assembly. 20. The walker apparatus as recited in claim 19, further comprising a first handlebar assembly connected to said upper end of said elongated member of said first front support leg assembly, and a second handlebar assembly connected to said upper end of said elongated member of said second front support leg assembly, wherein said first handlebar assembly further comprises a first hand actuator operatively connected to said first brake assembly, and said second handlebar assembly further comprises a second hand actuator operatively connected to said second brake assembly.
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이 특허에 인용된 특허 (10)
Rose Eric P. (Canoga Park CA), Foldable rolling walker.
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