Patent ID: 7770859

Claim:
A holding element for fastening an equipment element to a supporting rail with a rail head having an elliptical cross-sectional outer contour which is fastened to an inner supporting structure of a fuselage cell of an aircraft, comprising: a) two curved and pivotable clamping arms which, when clamped on, bear on both sides against the rail head with a form fit at least in some regions and which are displaceable parallel to a longitudinal axis of the supporting rail, b) a locking frame with a U-shaped cross-sectional geometry and two longitudinal edges running parallel to and at a distance from each other, c) a bearing frame with a rectangular base plate on which four bearing brackets are arranged, each clamping arm being accommodated pivotably in two respective bearing brackets, d) a supporting arm with a base plate with two downwardly pointing supports for the fastening of the equipment element, the supporting arm being connected to the bearing frame by at least two elastic buffer elements, e) at least two spring elements which are arranged between the locking frame and the clamping arms in order to press the clamping arms against the rail head with a sufficient degree of force, f) at least one spring clip which is fastened in the base plate of the bearing frame, and g) a plug-in pin which is fastened pivotably in the base plate of the supporting arm by means of an actuating lever and can be latched to the spring clip, as a result of which the two longitudinal edges of the locking frame are brought into contact with the two clamping arm outer surfaces for final securing in the locked state of the holding element, and a displacement parallel to the longitudinal axis is no longer possible.