Winged digging tooth
AssigneeH&L Tooth Company
InventorsCharles Clendenning, Brian L. Launder
Life of this patent
Estimating the term…
Abstract
A digging tooth adapted to extend forward from a leading edge of a bucket or the like. The digging tooth has a forward end, with an edge extending thereacross, and a rear end. The digging tooth further includes wing structure preferably formed integral with the digging tooth and extending from a surface on the tooth so as to provide the bucket with enhanced ground penetration capability while concomitantly shielding ground engaging components disposed rearwardly of a rear end of the digging tooth against wear and, thus, potentially extending the useful wear life of such components.
Claims72
A digging tooth adapted to extend forward from a digging implement having a transversely extending edge, said digging tooth defining a longitudinal centerline and has a forward end portion, with a cutting edge extending thereacross and a rear end portion configured for attachment to the edge of said implement, said digging tooth further including upper and lower angularly diverging surfaces having opposed side surfaces therebetween, and with said digging tooth further including a wing projecting laterally outwardly from each side surface on said tooth, with each wing having upper and lower planar surfaces each extending in a direction generally paralleling the cutting edge extending across the forward end portion of the digging tooth and with the upper surface of each wing being disposed in other than a planar relationship relative to the upper surface of the digging tooth, and wherein each wing has a laterally widened rear portion, a laterally narrowed forward portion, and an outer edge extending therebetween for providing said tooth with a progressively widening ground fracturing zone whereby yielding significant wear protection for the edge of the implement.
An elongated digging tooth adapted to extend forwardly from a digging implement having a transversely extending edge, said digging tooth defining a central axis and has a forward end portion, with a transverse cutting edge, and a rear end portion configured for attachment to the transversely extending edge of said implement, said digging tooth further including upper and lower angularly diverging surfaces having opposed side surfaces therebetween, and wherein said digging tooth further includes wing structure projecting generally horizontally and laterally outward from an area on one side of said tooth, with said wing structure having generally horizontal upper and lower surfaces, and with the upper surface of said wing structure being disposed in other than a planar relationship relative to the upper surface of the digging tooth, with said wing structure having a rear laterally widened portion, a laterally narrowed front portion, and an outer edge extending therebetween and converging toward the central axis of said tooth whereby providing said digging tooth with a widening ground penetration zone for facilitating penetration of the transversely extending edge on the digging implement.
In combination with a bucket having a forward edge with a plurality of two-part digging tooth assemblies connected to said edge in side-by-side relation relative to each other, with each digging tooth assembly including an adapter secured to said bucket at said edge, said adapter having a nose portion extending forward from said edge and to which a replaceable digging tooth is releasably secured, with each digging tooth having a forward end, with an edge transversely extending thereacross, a rear end, arranged adjacent to the bucket edge and defining a blind cavity for receiving the nose portion of said adapter, with said forward and rearward ends of said tooth being aligned relative to a central axis of the tooth, an upper surface extending forward and downwardly from the rearward end and toward the forward end of said digging tooth, and a lower surface extending forward and upwardly from the rearward end and toward the forward end of said digging tooth, and with each digging tooth further including a pair of wings extending outward and generally parallel to the forward edge on said tooth from an area on each side of the tooth proximate midway between the upper and lower surfaces of said tooth, with each wing on said tooth having a rear laterally widened portion and a laterally narrowed front portion such that, for a major length thereof, an outer edge of each wing converges toward the central axis of said tooth from which said wing extends and diverges relative to the outer edge of a wing on an adjacent tooth, and wherein the wings on each tooth are configured to protect that portion of said bucket edge disposed between adjacent tooth assemblies against wear.
A ground engaging tooth adapted to be mounted to a digging implement having a wear component arranged rearwardly of said digging tooth after said digging tooth is mounted on said digging implement, said ground engaging tooth defining a central axis and has a forward end portion, with a cutting edge extending transversely thereacross, a rear end portion, upper and lower angularly diverging surfaces having opposed side surfaces therebetween, and wherein said tooth is further provided with a free ended wing extending away from and longitudinally along at least one surface of said tooth between the rear end portion and forward end portion thereof, with a rear portion of said wing extending away from said at least one surface of said tooth a greater distance than does a forward portion thereof such that an outer edge of said wing, between the forward an rearward portions thereof, converges toward the central axis and such that, following initial ground penetration, the outer edge of the wing is disposed to initially fracture the ground through which said tooth passes whereby reducing wear on the wear component arranged rearwardly of the digging tooth.
A ground engaging tooth adapted to be mounted to a digging implement having a wear component arranged rearwardly of said digging tooth after said digging tooth is mounted on said digging implement, said ground engaging tooth defining a central axis and has a forward end portion, with a cutting edge extending transversely thereacross, a rear end portion, upper and lower angularly diverging surfaces having opposed side surfaces therebetween, and wherein said tooth is further provided with a first wing extending away from and longitudinally along at least a lengthwise portion of at one surface on said tooth, with the lengthwise portion of said wing having a length less than a length between the forward and rearward end portions of said tooth, and a second wing extending from said at least one surface on said tooth rearward of and in general longitudinal alignment with said first wing, with each of said first and second wings having an outer edge, and with said first and second wings being configured to combine with each other to fracture the ground through which said tooth passes whereby reducing wear on the wear component arranged rearwardly of the digging tooth.
An elongated digging tooth for a two-piece digging tooth assembly adapted to be secured to a transversely extending edge of a bucket, said digging tooth defining a central axis and having a front end, with a cutting edge transversely extending thereacross, a rear end having a blind cavity opening thereto for receiving and accommodating a nose portion of an adapter extending forward from the transversely extending edge of the bucket, with said tooth and said adapter each defining a bore which are arranged in registry with one another after said digging tooth and adapter are conjoined so as to allow a retaining apparatus to pass at least partially through said bores whereby maintaining said tooth and adapter in operable combination with each other, and wherein the bore defined by said tooth defines an axis extending generally normal to the central axis of said tooth, with said digging tooth further including an upper surface extending forward and downwardly from the rearward end and toward the cutting edge of said digging tooth, and a lower surface extending forward and upwardly from the rearward end and toward the cutting edge of said digging tooth, and with said digging tooth further including a generally horizontal wing extending laterally outward from an area on one side of said tooth, with said wing having generally parallel and horizontal upper and lower surfaces, with said wing having a laterally widened rear portion, disposed forward of the axis defined by the bore in said tooth and an outer edge extending forward from the laterally widened rear portion of the wing and converging toward the central axis of said tooth whereby providing said digging tooth with a progressively widening ground penetration zone for facilitating penetration of said bucket edge.
An elongated digging tooth for a two-piece digging tooth assembly adapted to be secured to a transversely extending edge of a bucket, said digging tooth defining a central axis and having a front end, with a cutting edge transversely extending thereacross, a rear end having a blind cavity opening thereto for receiving and accommodating a nose portion of an adapter extending forward from the transversely extending edge of the bucket, with said tooth and said adapter each defining a bore which are arranged in registry with one another after said digging tooth and adapter are conjoined so as to allow a retaining apparatus to pass at least partially through said bores whereby maintaining said tooth and adapter in operable combination with each other, and wherein the bore defined by said tooth defines an axis extending generally normal to the central axis of said tooth, with said digging tooth further including an upper surface extending forward and downwardly from the rearward end and toward the cutting edge of said digging tooth, and a lower surface extending forward and upwardly from the rearward end and toward the cutting edge of said digging tooth, and with said digging tooth further including a generally horizontal wing extending laterally outward from an area on one side of said tooth, with said wing having upper and lower surfaces, and with the upper surface of said horizontal wing being disposed in other than a planar relationship relative to the upper surface of said digging tooth, and with said wing being disposed rearward of the axis defined by the bore in said tooth and the rear end of said tooth whereby providing said digging tooth with a progressively widening ground penetration zone for facilitating penetration of said bucket edge.
Dependencies are inferred from the claim text.