DRIVMEKANISME TIL EN INJEKTIONSANORDNING

The present invention relates to a drive mechanism for an injection device for setting and dispensing of a dose of a medicament, the drive mechanism comprising: - an inner body (20) fixable inside a housing (10) of the injection device (1), the inner body (20) comprising an elongated shaft (20a) extending in an axial direction (z), wherein the elongated shaft (20a) comprises an outer thread (21) and a blocking structure (40) on an outer circumference, - a tubular-shaped display member (160) having an inner thread (163) engaged with the outer thread (21) of the inner body (20), and - a dose member (70) axially displaceable between a dose setting position (S) and a dose dispensing position (D) relative to the display member (60), - wherein the dose member (70) comprises at least one blocking element (174) displaceable, pivotable or bendable in radial direction (r) between a blocking position (B) and a release position (R) and engageable with the blocking structure (40) for inducing a radial displacement of the blocking element (174), - wherein when in the blocking position (B) the blocking element (174) axially abuts with the blocking structure (40) and with the display member (160) to block an axial displacement of the dose member (70) from the dose setting position (S) towards the dose dispensing position (D).