Collapsible rolling walker

1. A rolling walker comprising:

a seat assembly;

a pair of hubs disposed on opposing sides of the seat assembly, each of the hubs comprising at least three sub-hubs wherein at least two of the sub-hubs for each of the hubs comprise rotatable sub-hubs that are configured to selectively rotate with respect to a non-rotating one of the sub-hubs;

a plurality of legs that are each secured to corresponding ones of the sub-hubs, wherein the sub-hubs that comprise the non-rotating sub-hubs are directly affixed to some, but not all, of the plurality of legs;

a plurality of handle arms that are each secured to corresponding ones of the sub-hubs;

such that the legs and the handle arms can be selectively rotated with respect to one another between a fully-collapsed state and a fully-deployed state.

2. The rolling walker of claim 1 wherein the sub-hubs share a same external shape and cross-sectional size.

3. The rolling walker of claim 2 wherein the external shape comprises a disk.

4. The rolling walker of claim 3 wherein each of the sub-hubs has a disk cross-sectional diameter that is within 5 percent of one another.

5. The rolling walker of claim 3 wherein the sub-hubs for each of the hubs are coaxially aligned such that the hub also has a disk-shaped external shape.

6. The rolling walker of claim 1 wherein each of the sub-hubs secures to one, and only one, of the plurality of legs and handle arms.

7. The rolling walker of claim 1 wherein the legs that directly secure to the non-rotating sub-hubs are rear legs for the rolling walker.

8. The rolling walker of claim 1 wherein the legs and the handle arms are disposed at least within 5 degrees of one another when in the fully-collapsed state.

9. The rolling walker of claim 8 wherein the legs and the handle arms are disposed at least within 2 degrees of one another when in the fully-collapsed state.

10. The rolling walker of claim 1 wherein the seat assembly includes integral flanges that each comprise a part of one of the sub-hubs.

11. The rolling walker of claim 1 wherein the hubs share a common central axis.

12. The rolling walker of claim 11 wherein the seat assembly is configured to selectively pivot about the common central axis.

13. The rolling walker of claim 12 wherein the seat assembly is configured to selectively pivot about the common central axis even when the plurality of legs and handle arms are disposed in the fully-deployed state.

14. The rolling walker of claim 13 wherein the seat assembly is configured to selectively pivot about the common central axis between a horizontal position and a vertical position when the plurality of legs and handle arms are disposed in the fully-deployed state.

15. The rolling walker of claim 1 wherein each of the handle arms integrally includes a part of the sub-hub to which the handle arm is respectively secured.

16. The rolling walker of claim 15 wherein at least some of the plurality of legs each integrally includes a part of the sub-hub to which the leg is respectively secured.