(57) Retainer element (1) for fixing one or more plate-like building elements (20, 20',
20") to a carrier structure (21), the retainer element (1) comprising a holder part
(2) and a support part (3) which engage each other, the holder part (2) being provided
to hold one or more plate-like building elements and the support part (3) being provided
to be fixed to the carrier structure (21), an orthogonal system being defined by three
orthogonal axes intersecting each other perpendicularly in an origin, a first orthogonal
axis being formed by a longitudinal axis according to the longitudinal direction of
the retainer element and the two other orthogonal axes being formed by a height axis
according to the height direction and a transverse axis according to the transverse
direction of the retainer element, the holder part (2) being slidable with respect
to the support part (3) along the longitudinal axis and being rotatable with respect
to the support part (3) about the longitudinal axis, the holder part (2) and the support
part (3) engaging each other by means of a joint which is located in the origin of
the orthogonal system and which enables a rotation of the holder part (2) with respect
to the support part (3) about each of both the other orthogonal axes.
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