Patent ID: 7862275
Filing Date: 2011-01-04
Classification: B60R,F16B,Y10T

Abstract:
1. A fastening device for fastening a plate element on a carrier, wherein the fastening device can take a preassembly position and a final assembly position, the fastening device comprising a connecting element, which can be connected with the plate element and defines an axial mounting direction, and an engaging part into which the connecting element is inserted for locking the fastening device behind an opening of the carrier, the connecting element having functional elements formed as one piece with the connecting element, which in the preassembly position directly cooperate with associated functional elements or regions formed as one piece with the engaging part, the engaging part having functional elements formed as one piece with the engaging part, which in the preassembly position directly cooperate with associated functional elements or regions formed as one piece with the connecting element, wherein the functional elements that are formed as one piece with the connecting element include holding elements, and the associated functional elements of the engaging part include spreading elements, the holding elements holding the spreading elements in an unspread condition in the preassembly position, wherein a radially inner side surface of one of the holding elements engages a radially outer side surface of one of the spreading elements to hold the spreading element in the unspread condition in the preassembly position, the holding elements being disengaged from the spreading elements in the final assembly position, the holding elements maintaining the same radial position relative to a longitudinal axis of the connecting element whether the fastening device is in the preassembly position or the final assembly position.