Support devices including movable segments and methods for operating the same
AssigneeToyota Motor North America, Inc.
InventorsDouglas A. Moore, Dario Jose Villarreal Suarez
Life of this patent
Estimating the term…
Abstract
A support device includes a base portion, a leg coupled to the base portion, the leg including an upper segment, a central segment pivotally coupled to the upper segment at a front wheel, a lower segment pivotally coupled to the central segment, a rear wheel coupled to the lower segment, and an engagement member coupled to the lower segment, where the engagement member is positionable between a disengaged position, in which at least a portion of the engagement member is positioned above the rear wheel, and an engaged position, in which at least a portion of the engagement member is positioned at or below the rear wheel.
Claims18
A support device comprising:
- a base portion;
- a leg coupled to the base portion, the leg comprising:
- an upper segment pivotally coupled to the base portion;
- a lower segment pivotally coupled to the upper segment at a lower joint;
- a rear wheel coupled to the lower segment;
- and
- a rotating bracket pivotally coupled to the upper segment and the lower segment at the lower joint, wherein:
- a front wheel and an engagement wheel are fixedly coupled to one another by the rotating bracket,
- the engagement wheel is positioned between the front wheel and the rear wheel,
- the rotating bracket is positionable between an engaged position and a disengaged position,
- in the engaged position, the engagement wheel is positioned at or below the front wheel, and
- in the disengaged position, the engagement wheel is positioned above the front wheel.
A wheelchair comprising:
- a base portion comprising a seat;
- a leg coupled to the base portion, the leg comprising:
- an upper segment pivotally coupled to the base portion;
- a lower segment pivotally coupled to the upper segment at a lower joint;
- a rear wheel coupled to the lower segment;
- and
- a rotating bracket pivotally coupled to the upper segment and the lower segment at the lower joint, wherein:
- a front wheel and an engagement wheel are fixedly coupled to one another by the rotating bracket,
- the engagement wheel is positioned between the front wheel and the rear wheel,
- the rotating bracket is positionable between an engaged position and a disengaged position,
- in the engaged position, the engagement wheel is positioned at or below the front wheel, and
- in the disengaged position, the engagement wheel is positioned above the front wheel.
Dependencies are inferred from the claim text.