Patent ID: 7142899

Claim:
A portable electronic device comprising: a main section with electronic circuitry; a detachable flipping section foldably mounted around an axis of rotation relative to said main section such that the flipping section can be folded in a first position wherein the flipping section is detachable and reattachable; and a locking mechanism provided with a resilient member, the resilient member being configured such that it orients, by action of the resilience of said member, the flipping section in a second position, the locking mechanism being further configured to prevent the flipping section from being detached from the main section within a position range comprising the second position; the locking mechanism further comprising: a first locking combination comprising a first recess in the flipping section and a corresponding first tap in the main section; and a second locking combination comprising a second recess in the main section and a second corresponding tap in the flipping section; wherein the resilient member acts on at least one of said two locking combinations, and both the first and second locking combinations are provided at said axis of rotation when the flipping section is attached to the main section.