Abstract: A retractable wheel assembly is provided for coupling to a mounting on an object. The retractable wheel assembly is moveable between one or more extended positions and a retracted position. The retractable wheel assembly is configured to expose a wheel in the extended position(s) and to stow said wheel in the retracted position. The retractable wheel assembly comprises a first wheel strut rotatably mounted at or proximate a first end thereof, a first link arm handle rotatably coupled at or proximate a second end of the first wheel strut, and a first over-centre locking arm rotatably coupled at or proximate a first end to the first link arm handle and rotatably mounted at a second end thereof. The retractable wheel assembly is configured to rotatably couple to the wheel at or proximate the coupling between the first wheel strut and the first link arm handle.

Abstract: A retractable wheel assembly is provided for coupling to a mounting on an object. The retractable wheel assembly is moveable between one or more extended positions and a retracted position. The retractable wheel assembly is configured to expose a wheel in the extended position(s) and to stow said wheel in the retracted position. The retractable wheel assembly comprises a first wheel strut rotatably mounted at or proximate a first end thereof, a first link arm handle rotatably coupled at or proximate a second end of the first wheel strut, and a first over-centre locking arm rotatably coupled at or proximate a first end to the first link arm handle and rotatably mounted at a second end thereof.