DEVICE FOR COUPLING WEAR PIECES TO RECEPTION TOOLS OF A PUBLIC WORKS MACHINE

摘要

The invention concerns a coupling device wherein the tooth (D) includes a skirt (2) shrouding the adapter nose beyond the key passage zone and having a configuration (2.1) connected to a return wall (2.2), comprising a ribbing edge (2.7). Said wall is provided in the width of the skirt and corresponds to the passage and positioning of the key. Proximate the ends of said side unit wall, and in the thickness of the skirt, are provided passage openings (2.3 2.4) for the key devoid of abutting function in operation and ensuring a guiding and stopping function only when the key is inserted or removed. The key comprises two components (4 5) transversely mobile relative to each other.