Patent ID: 8821089
Filing Date: 2014-09-02
Classification: B60N,B64D,Y10T

Abstract:
1. An anchorage device, defining a longitudinal axis, for use in an anchorage system with a track having an upwardly-open longitudinal channel with opposed overhanging lips having respective undersides and defining between them a top channel opening, the overhanging lips having a series of periodic cut-outs forming a series of wide parts of the top channel opening, with narrow parts of the top channel opening located between the wide parts, the anchorage device comprising: a body; one or more slidable foot portions beneath the body, the or each slidable foot portion comprising whereby, in use, the or each foot portion is insertable into the longitudinal channel of the track when the device is at a removal/insertion position relative thereto, with the or each slidable foot portion aligned with a said cut-out, whereas when the device is slid along the track to a captive position relative thereto, the bottom part of the or each foot portions is held captive beneath the overhanging lips of the track at a narrow part of the top channel opening with the upwardly-directed top surface opposed to the undersides of the overhanging lips; and a releasable locking mechanism for releasably locking the device longitudinally in position relative to the track in a locked condition in use, whereby in the locked condition, the slidable foot portion cannot slide from the captive position to the removal/insertion position, wherein the upwardly-directed top surface of at least one of said one or more slidable foot portions, which in the captive position is opposed to a respective one of the undersides of one of said overhanging lips of the track, is inclined upwardly towards the body relative to the longitudinal axis, in a same direction of inclination over at least 50% of the longitudinal length of said top surface, and wherein the locking mechanism comprises a protrusion insertable into the wide parts of the top channel opening of the track in use, and is operable to drive longitudinal movement between the foot portion having the upwardly-inclined top surface and said protrusion, to move the foot portion and the protrusion between an insertion/removal spacing corresponding to the removal/insertion position and a captive spacing corresponding to the captive position.