Metal fitting holder for front faces of drawers

A metal fitting for holding a front face of a drawer to side walls of the drawer said front face having an outer surface and an inner surface, said fitting comprising;

• a holding part, fastenable to inner surface of the drawer front face and having a bracket-like projection projecting substantially rectangularly from the inner surface, said bracket-like projection being insertable into a receiving part,
• a receiving part, fastenable to a side wall of the drawer, for detachably receiving the bracket-like projection,
• a locking element for locking said bracket-like projection after insertion into the receiving part, said locking element being movably attached to the receiving part and acted upon by a spring element under tension such that the locking element can be rotated about an axis between a first and second stable, end-position in a region facing the drawer front face, and extending transversely to an inserting direction of the extended projection,
• wherein said locking element is provided with at least one locking edge on an end region, and, as a result of tension by the spring on the locking element, is rotated into the first end position in a specified mounting position of the front face, behind a holding edge formed in a free end region of the bracket-like projection, said holding edge pointing rearward toward the front face,
• said locking element further comprising a limiting edge, adjoining an end of the locking edge, and protruding, in the first end position of the locking element, into the insertion path of the bracket-like projection, said limiting edge being configured to collide with the free end region of the bracket-like projection during the insertion of the bracket-like projection into the receiving part, said collision causing the locking element to rotate against the spring under tension in the direction of the second stable end position, and
• wherein the locking edge of the locking element, while being rotated behind the holding edge of the bracket-like projection, has an increasingly greater distance from the axis of rotation of the locking element in the region of contact with the holding edge, and
• wherein the locking edge further comprises an arched course having a radius, measured from the axis of rotation of the locking element to the locking edge, increases gradually from a first end, which at first grips behind the holding edge during the locking process, in the direction of the other end, and
• wherein the bracket-like projection further comprises holding lugs on both sides at the free end, which protrude in opposite directions, and on said holding lugs are constructed holding edges for the locking element, and said locking element further comprises two panel-shaped locking element halves having a common outer boundary, said locking element halves being disposed parallel to and at a distance from each other, and, accordingly, two locking edges having the same course, the clear distance of which from one another is at least equal to the thickness of the bracket-shaped projection, but smaller than the distance measured over the opposite, free, boundary edges of the holding lugs.