Patent ID: 8381366
Filing Date: 2013-02-26
Classification: A44B,Y10T

Abstract:
1. An attachment buckle for fitting and adjusting a strap, the attachment buckle comprising: a pair of superposed rings in the form of rectangular frames of different dimensions; a larger first ring of the pair of superposed rings defining a rectangular first opening; and a smaller second ring of the superposed rings defining a rectangular second opening, wherein the first opening is arranged under the rectangular second opening so as to define a transverse slot for the strap to pass through, the slot being arranged between an outside edge of the second ring and an adjacent side of the first opening of the first ring, the buckle being either in a blocking position that blocks the strap in the slot following application of a clamping force, or in a releasing position after a swivelling movement of the second ring resulting in a passage zone in the slot being enlarged, wherein the second ring is articulated on the first ring by means of a connecting spring designed to press the second ring against the first ring and to urge the second ring to slide to the blocking position, wherein the connecting spring is formed by a helical spring passing through a median hole of the second ring, the helical spring being secured via its two opposite ends to the first ring, wherein the helical spring extends in the transverse direction of the axis of swivelling of the second ring.