Excavating tooth

E - Fixed Constructions – 02 – F

Patent

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Details

E02F 9/28 (2006.01)

Patent

CA 2238644

An excavating tooth for attachment to the digging edge of excavating equipment includes a wear member (12) provided with bearing faces (67, 68, 72) in a socket which extend substantially parallel to the longitudinal axis of the tooth. The bearing faces are formed to widen significantly as they extend rearward to provide board bearing surfaces at the rear ends (84) of the wear member. The bearing faces are placed between converging walls (78, 79) and sidewalls (74, 75) of the socket at obtuse angles thereto to avoid areas of stress concentration. The wear member is further secured to the adapter by locks which ease installation and removal of the wear member.

Cette dent d'excavation, destinée à être fixée sur le bord piocheur d'un appareil excavateur, comprend un élément d'usure (12) pourvu de faces d'appui (67, 68, 72) situées dans une cavité et s'étendant sensiblement parallèlement à l'axe longitudinal de la dent. Ces faces d'appui s'élargissent de manière importante au fur et à mesure qu'elles s'étendent vers l'arrière, pour constituer des surfaces d'appui planes au niveau des extrémités arrière (84) de l'élément d'usure. Ces surfaces d'appui sont placées entre des parois convergentes (78, 79) et des parois latérales (74, 75) de la cavité, avec lesquelles elles forment des angles obtus afin d'éviter des zones de concentration d'efforts. L'élément d'usure est en outre fixé à l'adaptateur au moyen de dispositifs de verrouillage facilitant l'installation et l'enlèvement dudit élément.

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