Foldable carriage
AssigneeThule Sweden AB
InventorsParamjit Singh, Wesley Justin Fleming, Miao Kaihua
Life of this patent
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Abstract
A carriage having a frame which includes a plurality of elongated frame components. A first attachment point couples a first and second elongated frame component. A second attachment point couples a third and fourth elongated frame component. A transverse elongated frame component couples to the first and second attachment points. A rotation lock is disposed on the transverse elongated frame component. The rotation lock is configured to prevent rotation of the transverse elongated frame component in a locked configuration.
Claims27
A carriage, comprising:
- a frame comprising a plurality of elongated frame components and configured to fold between a use position and a storage position;
- a first attachment joint coupling a first and second elongated frame component;
- a second attachment joint coupling a third and fourth elongated frame component;
- a rotation lock comprising a handle and a spring and disposed between the first and second attachment joints, wherein the rotation lock is configured to prevent rotation;
- and
- a pivot lock for the first attachment joint configured to prevent the first and second elongated frame components from pivoting with respect to each other when the pivot lock is in a locked configuration,
- wherein the spring is disposed between a first end of the handle and a second end of the handle, and
- wherein overcoming a biasing force of the spring permits the handle to be rotated.
A carriage, comprising:
- a frame configured to fold between a use position and a storage position;
- a first attachment joint configured to attach a plurality of elongated frame components and a second attachment joint configured to attach a plurality of elongated frame components, wherein the frame is configured to fold at the first and the second attachment joints;
- a pivot lock for the first attachment joint configured to lock the frame in the use position;
- a transverse elongated component disposed at least partially between the first and the second attachment joints, wherein the pivot lock is configured to be operated by rotating the transverse elongated component;
- and
- a rotation lock comprising a spring coupled to a pin and disposed between the first and the second attachment joints, wherein the pin is configured to unlock the rotation lock, and
- wherein the pin is configured to move perpendicular to a center axis of the transverse elongated component.
A method for folding a carriage from a use position to a storage position, comprising:
- unlocking a rotation lock comprising a pin configured to prevent rotation of a handle coupled to a frame of the carriage;
- rotating the handle, wherein rotating the handle unlocks a pivot lock of a first attachment joint of the carriage;
- and
- folding the carriage from the use position to the storage position,
- wherein a user unlocks the rotation lock and rotates the handle with a single hand without changing grip between unlocking the rotation lock and thereafter rotating the handle to unlock the pivot lock.
Dependencies are inferred from the claim text.