A device for front-mounting of an implement (11 ) on an implement- carrying vehicle has a supporting frame (13) from which the implement is suspended via two suspension arms (16). The suspension arms are connected, pivotally about a transverse axis (24), to the supporting frame (13) and are, thus, pivotable between a first end position, which is a stop position, and a second end position. The centre of gravity (25) of the unit suspended from the supporting frame (13) and consisting of the complete implement, including the suspension arms, is located in front of the pivoting axis (24), whereby the suspension arms (16), as the supporting frame pivots from a lowered position, in which support wheels (19) located at the front ends of the suspension arms abut against the ground (18), to an elevated position, are being automatically pivoted by the weight of said unit relative to the supporting frame (13), from the second end position to the stop position, so that the implement (11 ) is raised at its rear portion. As the supporting frame (13) pivots from the lowered position to the elevated position, the suspension arms (16) reach the stop position before the supporting frame reaches the elevated position, whereby the support wheels (19), as the supporting frame continues its pivoting movement to the elevated position, are being raised from the ground (18).Linvention concerne un dispositif pour le montage avant dun accessoire (11) sur un véhicule portant des accessoires présentant un cadre de support (13) auquel est suspendu laccessoire via deux bras de suspension (16). Les bras de suspension sont raccordés, de manière pivotante autour dun axe transversal (24), au cadre de support (13) et peuvent ainsi pivoter entre une première position dextrémité, qui est une position darrêt, et une seconde position dextrémité. Le centre de gravité (25) de lunité suspendue depuis le cadre de support (13) et constituée de laccessoire complet, y compris les bras de suspension, est situé à