Fastening device

摘要

A fastening device comprising a main portion having a base end portion and a distal end portion wherein its base end is attached to a head intended to be in contact with a rim at the outer side of an aperture when the fastening device is located in the aperture. The main portion is provided with guiding elements in order to guide the fastening device when inserted into the aperture and resilient elements which during insertion will be pressed inwards in order to at a later stage, when the resilient elements have passed the rim of the aperture, resiliently move back and thus provide a locking of the fastening device by being in contact with the rim on the inside of the aperture. The guiding element is provided with at least three vanes which are attached at its bases to the head such that they are located at an essentially equidistant spacing from the centre point. The resilient elements are made up by segments which only are attached to the fastening device along one side of the segments to the vanes such that they are protruding from the vanes and extend in a direction towards an adjacent vane.

主权项

1. A fastening device comprising
a main portion having an axial extension from a base end to a distal end of the main portion, the main portion configured to be brought into an aperture or a slot having a size adapted for the fastening device, and a head comprising a single flange, attached to the main portion at the base end of the main portion, and configured to be in contact with a rim of the aperture on one side of the aperture when the fastening device is located in the aperture; the main portion comprising a guiding element for guiding the fastening device when the fastening device is brought through the aperture, and resilient elements configured
to be pressed inwardly towards a center of the main portion when the main portion is entering through the aperture,to be resiliently moved back when the resilient elements have passed the rim of the aperture, andthus to provide a locking of the fastening device by being in contact with the rim on an opposite side of the aperture, the guiding element comprising
at least three vanes, each having a base attached to the main portion, and a peripheral part, as viewed from the center of the main portion, wherein
the bases are located essentially at an equidistant spacing from the center of the main portion and located essentially at the same periphery in a circle around the main portion; each of the resilient elements comprises a segment attached to one of the at least three vanes, respectively, along one side of said segment; and the segments protrude from the respective vanes and extend in a direction towards an adjacent vane along a single direction, wherein an empty gap is located between the single flange of the head and the segments of the resilient elements.