Patent ID: 7396039

Claim:
A foldable device for use with at least one front wheel and at least one rear wheel, comprising: left and right side laterally spaced-apart first members, each of the first members having a first end portion and a second end portion; left and right side laterally spaced-apart second members, each of the second members having a first end portion and a second end portion; left and right side laterally spaced-apart third members, each of the third members having a first end portion and a second end portion, at least one of the first end portions of the first members having a mounting portion configured for mounting of the at least one front wheel thereto, at least one of the first end portions of the second members having a mounting portion configured for mounting of the at least one rear wheel thereto, and at least one of the first end portions of the third members having a handle portion; and left and right side laterally spaced-apart folding assemblies, each of the left and right side folding assemblies having a first rotatable member and a second rotatable member each rotatably mounted on a pivot member and configured to pivot symmetrically about the pivot member as a common axis, one of the second end portions of a first one of the first, second and third members being attached to the first rotatable member, one of the second end portions of a different second one of the first, second and third members being attached to the second rotatable member, and one of the second end portions of another different third one of the first, second and third members supporting the pivot member, the first and second rotatable members being first and second plates, respectively, arranged in face-to-face juxtaposition, the juxtaposed faces of the first and second plates abut and slide along one another.