E - Fixed Constructions – 02 – F
Patent
E - Fixed Constructions
02
F
E02F 3/36 (2006.01) E02F 3/58 (2006.01) E02F 9/28 (2006.01) E21C 35/19 (2006.01)
Patent
CA 2207532
An excavation tooth point longitudinally extending along an axis and having a pocket area extending inwardly through a rear end thereof is telescoped onto a nose portion of an adapter structure by inserting the nose portion into the tooth point pocket area. The inserted nose portion has a tapered side opening therein that is positioned between a corresponding pair of similarly tapered tooth side wall openings. The tooth point is removably coupled to the adapter nose using an elongated, wedge shaped connector member which is inserted, small end first, through the generally aligned tooth and adapter openings. An internal passage longitudinally extends through the large connector member end and receives an inner portion of a force exerting member which compresses a spring within the passage, the spring in turn resiliently biasing an outer portion of the force exerting member into abutment with an interior surface portion of the tooth. The compressed spring, via the force exerting member, maintains the tooth point in an axially tightened orientation on the adapter nose, and automatically tightens the tooth further onto the adapter nose in response to tooth/adapter interface wear that would otherwise cause undesirable "play" between the tooth point and the adapter nose portion. The connector member may be removed by pushing the force exerting member further into the connector member passage, rotating it, and then releasably locking it in this retracted position using a cooperating pin and slot structure on the connector and force exerting members.
Pointe rapportée pour dent excavatrice dans l'axe longitudinal de laquelle se trouve une cavité en forme de U pour insertion sur la partie pivot de la dent. La partie pivot de la dent est percée d'un trou conique aligné avec des trous correspondants pratiqués dans la dent rapportée. La pointe rapportée de la dent est assemblée à la partie pivot à l'aide d'un connecteur allongé en forme de coin qui est inséré dans les trous alignés de la pointe rapportée et de la partie pivot. Un passage longitudinal traverse le connecteur et loge un ressort qui actionne un organe de verrouillage en contact avec une portion de surface à l'intérieur de la pointe rapportée. En compression, le ressort maintient la pointe rapportée en place sur la partie pivot de la dent et compense le jeu indésirable provoqué par l'usure normale à l'interface entre le pivot et la portion intérieure de la pointe rapportée. Le connecteur peut être dégagé de son logement par rotation de l'organe de verrouillage dans le passage du connecteur, où il sera maintenu en position fermée.
Gh Hensley Industries Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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