초록 ▼

A personal mobility device includes a pair of rear legs and a pair of front legs pivotably connected to the rear legs via a pair of hubs. A handle, having a loop shape and including a grip portion, is slidably mounted within the pair of hubs so that the height of the grip can be adjusted. The hubs l

A personal mobility device includes a pair of rear legs and a pair of front legs pivotably connected to the rear legs via a pair of hubs. A handle, having a loop shape and including a grip portion, is slidably mounted within the pair of hubs so that the height of the grip can be adjusted. The hubs lock the front and rear legs in both an open (unfolded) and closed (folded) configuration. By sliding the handle downward through the hubs, the legs are unlocked from the open position and allowed to pivot until locked in the closed configuration. Conversely, by sliding the handle upward through the hubs, the legs are unlocked from the closed position and allowed to pivot until locked in the open configuration.

대표청구항 ▼

1. A personal mobility device, comprising: a first rear leg;a second rear leg;a first front leg pivotably connected to the first rear leg by a first hub, wherein the first hub has a first state, wherein the first rear leg and the first front leg are locked in an open configuration; a second state, w

1. A personal mobility device, comprising: a first rear leg;a second rear leg;a first front leg pivotably connected to the first rear leg by a first hub, wherein the first hub has a first state, wherein the first rear leg and the first front leg are locked in an open configuration; a second state, wherein the first rear leg and the first front leg are locked in a closed configuration; and a third state, wherein the first rear leg and the first front leg are unlocked to pivot between the open configuration and the closed configuration;a second front leg pivotably connected to the second rear leg by a second hub, wherein the second hub has a first state, wherein the second rear leg and the second front leg are locked in an open configuration; a second state, wherein the second rear leg and the second front leg are locked in a closed configuration; and a third state, wherein the second rear leg and second front leg are unlocked to pivot between the open configuration and the closed configuration; anda handle, having a loop shape and including a grip portion, slidably mounted within the first hub and the second hub such that a height of the grip portion is adjustable,wherein sliding the handle through the first hub toggles the first hub between either the first state or the second state and the third state, and sliding the handle through the second hub toggles the second hub between either the first state or the second state and the third state. 2. The personal mobility device according to claim 1, wherein: sliding the handle downwardly through the first hub toggles the first hub between the first state of the first hub and the third state of the first hub, andsliding the handle downwardly through the second hub toggles the second hub between the first state of the second hub and the third state of the second hub. 3. The personal mobility device according to claim 1, wherein: sliding the handle upwardly through the first hub toggles the first hub between the second state of the first hub and the third state of the first hub, andsliding the handle upwardly through the second hub toggles the second hub between the second state of the second hub and the third state of the second hub. 4. The personal mobility device according to claim 1, wherein: the first hub comprises a first follower that, when depressed, toggles the first hub into the second state;the second hub comprises a second follower that, when depressed, toggles the second hub into the second state; andthe handle comprises a first cam to depress the first follower and a second cam to depress the second follower. 5. The personal mobility device according to claim 4, wherein: the first cam comprises a wedge to depress the first follower as the handle slides downwardly through the first hub and to depress the first follower as the handle slides upwardly through the first hub; andthe second cam comprises a wedge to depress the second follower as the handle slides downwardly through the second hub to depress the second follower as the handle slides upwardly through the second hub. 6. The personal mobility device according to claim 1, further comprising: a first swiveling wheel assembly including a first wheel attached to the first front leg; anda second swiveling wheel assembly including a second wheel attached to the front rear leg,wherein the handle has a curvature such that, when the handle is slid downwardly through the first hub and the second hub, it engages the first swiveling wheel assembly and the second swiveling wheel assembly in a manner that positions the first wheel parallel to the second wheel and prevents swiveling of the first swiveling wheel assembly and the second swiveling wheel assembly. 7. The personal mobility device according to claim 1, further comprising: a first wheel attached to the first rear leg;a second wheel attached to the second rear leg;a first brake shoe adjacent the first wheel and movable between an undeployed configuration, wherein the first brake shoe is not in contact with the first wheel, and a deployed configuration, wherein the first brake shoe is in contact with the first wheel;a second brake shoe adjacent the second wheel and movable between an undeployed configuration, wherein the second brake shoe is not in contact with the second wheel, and a deployed configuration, wherein the second brake shoe is in contact with the second wheel;a first actuator in the first hub operable to toggle the first brake shoe between the undeployed configuration and the deployed configuration; anda second actuator in the second hub operable to toggle the second brake shoe between the undeployed configuration and the deployed configuration. 8. The personal mobility device according to claim 1, wherein: the first hub comprises a first grip height locking pin;the second hub comprises a second grip height locking pin; andthe handle comprises a plurality of detents to engage the first grip height locking pin and the second grip height locking pin as the handle slides through the first hub and the second hub in order to secure the grip portion of the handle at a preset height. 9. The personal mobility device according to claim 1, further comprising: a first wheel attached to the first rear leg;a second wheel attached to the second rear leg;a first brake shoe biased into engagement with the first wheel; anda second brake shoe biased into engagement with the second wheel. 10. The personal mobility device according to claim 9, wherein the first brake shoe engages an inner, upper surface of the first wheel and the second brake shoe engages an inner, upper surface of the second wheel. 11. The personal mobility device according to claim 9, wherein a downward force applied to the grip portion of the handle causes the first brake shoe to disengage the first wheel and the second brake shoe to disengage the second wheel. 12. The personal mobility device according to claim 1, wherein the handle comprises a closed loop. 13. The personal mobility device according to claim 1, wherein the grip portion of the handle comprises a centrally-located flattened region. 14. A personal mobility device, comprising: a first rear leg;a second rear leg;a first front leg pivotably connected to the first rear leg by a first hub;a second front leg pivotably connected to the second rear leg by a second hub;a handle, having a loop shape and including a grip portion, slidably mounted within the first hub and the second hub such that a height of the grip portion is adjustable;a first swiveling wheel assembly including a first wheel attached to the first front leg; anda second swiveling wheel assembly including a second wheel attached to the front rear leg,wherein the handle has a curvature such that, when the handle is slid downwardly through the first hub and the second hub, it engages the first swiveling wheel assembly and the second swiveling wheel assembly in a manner that positions the first wheel parallel to the second wheel and prevents swiveling of the first swiveling wheel assembly and the second swiveling wheel assembly. 15. A personal mobility device, comprising: a first rear leg;a second rear leg;a first front leg pivotably connected to the first rear leg by a first hub;a second front leg pivotably connected to the second rear leg by a second hub;a handle, having a loop shape and including a grip portion, slidably mounted within the first hub and the second hub such that a height of the grip portion is adjustable;a first wheel attached to the first rear leg;a second wheel attached to the second rear leg;a first brake shoe adjacent the first wheel and movable between an undeployed configuration, wherein the first brake shoe is not in contact with the first wheel, and a deployed configuration, wherein the first brake shoe is in contact with the first wheel;a second brake shoe adjacent the second wheel and movable between an undeployed configuration, wherein the second brake shoe is not in contact with the second wheel, and a deployed configuration, wherein the second brake shoe is in contact with the second wheel;a first actuator in the first hub operable to toggle the first brake shoe between the undeployed configuration and the deployed configuration; anda second actuator in the second hub operable to toggle the second brake shoe between the undeployed configuration and the deployed configuration. 16. The personal mobility device according to claim 15, wherein: the first actuator is coupled to the first brake shoe through a first plurality of pulleys; andthe second actuator is coupled to the second brake shoe through a second plurality of pulleys. 17. The personal mobility device according to claim 15, further comprising a seat movable between a stowed position and a use position, wherein moving the seat from the stowed position to the use position actuates the first actuator to toggle the first brake shoe into the deployed configuration and actuates the second actuator to toggle the second brake shoe into the deployed configuration. 18. The personal mobility device according to claim 17, wherein the seat is pivotably coupled to the first hub and the second hub. 19. The personal mobility device according to claim 15, wherein: the first actuator is biased to toggle the first brake shoe into the undeployed configuration, andthe second actuator is biased to toggle the second brake shoe into the undeployed configuration. 20. A personal mobility device, comprising: a first rear leg;a second rear leg;a first front leg pivotably connected to the first rear leg by a first hub;a second front leg pivotably connected to the second rear leg by a second hub; anda handle, having a loop shape and including a grip portion, slidably mounted within the first hub and the second hub such that a height of the grip portion is adjustable, wherein: the first hub comprises a first grip height locking pin;the second hub comprises a second grip height locking pin; andthe handle comprises a plurality of detents to engage the first grip height locking pin and the second grip height locking pin as the handle slides through the first hub and the second hub in order to secure the grip portion of the handle at a preset height. 21. The personal mobility device according to claim 20, wherein the handle further comprises: a plurality of pegs internal to the handle and respectively positioned adjacent the plurality of detents; andan actuator operable to move the plurality of pegs such that they respectively protrude outwardly from the plurality of detents, thereby preventing the first grip height locking pin and the second grip height locking pin from engaging the plurality of detents as the handle slides through the first hub and the second hub in order to adjust the height of the grip portion of the handle. 22. The personal mobility device according to claim 21, wherein at least some of the plurality of pegs are interconnected with each other.