A marking device for applying a marking on an object, the marking device being intended to be mounted to a base and comprising: - a striking arm provided with a striking head at its outer free end; - actuating means for actuating the striking arm; and - a link arrangement, through which the actuating means are arranged to act on the striking arm, characterized in: - that the striking arm is movably connected to the base through the link arrangement; - that the striking arm at its inner end is pivotally connected to a first link of the link arrangement through a first joint, which defines a first pivot axis; - that the first link is pivotally connected to the base through a second joint, which defines a second pivot axis, the first link being pivotable about this second pivot axis under the effect of the actuating means; - that the second pivot axis extends in parallel with the first pivot axis; - that the striking arm is pivotable about the first pivot axis under the effect of the actuating means and the link arrangement from a resting position to a striking position so as to thereby allow the striking head to hit against an object in order to apply a marking on the object, the first link being arranged to pivot about the second pivot axis under the effect of the actuating means during such a movement of the striking arm from the resting position to the striking position; and - that the link arrangement is arranged to move the first pivot axis outwards from the base so that the distance between the first pivot axis and the base increases when the striking arm is moved under the effect of the actuating means and the link arrangement from the resting position to the striking position. - a striking arm provided with a striking head at its outer free end; - actuating means for actuating the striking arm; and - a link arrangement, through which the actuating means are arranged to act on the striking arm, - that the striking arm is movably connected to the base through the link arrangement; - that the striking arm at its inner end is pivotally connected to a first link of the link arrangement through a first joint, which defines a first pivot axis; - that the first link is pivotally connected to the base through a second joint, which defines a second pivot axis, the first link being pivotable about this second pivot axis under the effect of the actuating means; - that the second pivot axis extends in parallel with the first pivot axis; - that the striking arm is pivotable about the first pivot axis under the effect of the actuating means and the link arrangement from a resting position to a striking position so as to thereby allow the striking head to hit against an object in order to apply a marking on the object, the first link being arranged to pivot about the second pivot axis under the effect of the actuating means during such a movement of the striking arm from the resting position to the striking position; and - that the link arrangement is arranged to move the first pivot axis outwards from the base so that the distance between the first pivot axis and the base increases when the striking arm is moved under the effect of the actuating means and the link arrangement from the resting position to the striking position.