Excavating tooth

An excavating tooth comprising an adapter element and a point element, said adapter element having means at one end for connection to a bucket or the like and means at the other end for coupling to said point element, said point element having an earth engaging edge at one end constituting the tooth forward end and means at the other end for coupling to said adapter element, said coupling means including a nose on one element and a nose receiving socket on the other element, a plurality of cooperating generally helical thread means on said nose and in said socket whereby said point element is rotated to install the same on said adapter element, and lock means externally of said nose releasably connecting said elements to prevent reverse rotation of said point element when the same is installed on the said adapter element, said lock means being rearward of said nose and socket, which said adapter element being equipped with said nose forward of a relatively massive section and said point element being equipped with said socket, said lock means being positioned in said massive section, which said lock means including interengaging parts on said point element and adapter element for receipt of locking rod means.

An excavating tooth comprising an adapter element and a point element, said adapter element having means at one end for connection to a bucket or the like and means at the other end for coupling to said point element, said point element having an earth engaging edge at one end constituting the tooth forward end and means at the other end for coupling to said adapter element, said coupling means including a nose on one element and a nose receiving socket on the other element, a plurality of cooperating generally helical thread means on said nose and in said socket whereby said point elment is rotated to install the same on said adapter element, and lock means externally of said nose releasably connecting said elements to prevent reverse rotation of said point element when the same is installed on the said adapter element, said lock means being rearward of said nose and socket, said adapter element being equipped with said nose forward of a relatively massive section and said point element being equipped with said socket, said lock means being positioned in said massive section, said interengaging parts including integral rearwardly-extending tongue means on said point element, said tongue means being shaped to receive a portion of said rod means.

An excavating tooth comprising an adapter element and a point element, said adapter element having means at one end for connection to a bucket or the like and means at the other end for coupling to said point element, said point element having an earth engaging edge at one end constituting the tooth forward end and means at the other end for coupling to said adapter element, said coupling means including a nose on one element and a nose receiving socket on the other element, a plurality of cooperating generally helical thread means on said nose and in said socket whereby said point element is rotated to install the same on said adapter element, and lock means externally of said nose releasably connecting said elements to prevent reverse rotation of said point element when the same is installed on the said adapter element, said lock means including alignable projections and recesses on said elements external of said nose and socket to reduce shearing stresses, and pin means removably associated with said projections.

An excavating tooth comprising an adapter element and a point element, said adapter element having means in one end for connection to a bucket or the like and means at the other end for coupling to said point element, said point element having an earth engaging edge at one end and means at the other end for coupling to said adapter element, said coupling means including a threaded nose on one element and a nose receiving socket on the other element, lock means externally of said threaded nose releasably connecting said elements to prevent inadvertent disassembly of said elements, said lock means including tongues on one element and recesses on the other, and rod means interposed between said tongues and recesses and arranged to resist a disassembling force in compression.

An excavating tooth point comprising a relatively elongated unitary element having a ground engaging edge at one end and means at the other end for coupling to an adapter, said coupling means including a plurality of thread means generally helically disposed about a longitudinally extending axis whereby said point is rotated to install the same on said adapter, and means on said point external of said axis for releasably locking said point on said adapter to prevent reverse rotation thereof, said coupling means including a tapered socket open at said other end and extending toward said one end, said locking means being positioned rearwardly of said socket, said locking means including rearwardly extending tongue means.

An excavating tooth point comprising a relatively elongated unitary element having a ground-engaging edge at the forward end thereof and a socket at the rear end for receipt of an adapter nose, said socket being forwardly convergent and including a surface of revolution generated about the longitudinally extending axis of said tooth point, said surface of revolution being interrupted at spaced apart areas by at least four helically disposed grooves, and means on said point rearward of said socket for releasably locking the same to an adapter to prevent rotational removal of said point from the adapter, said point having divergent working faces extending rearwardly from said ground-engaging edge and constituting the top and bottom faces of said tooth, said locking means including tongue means on the sides of said tooth extending rearwardly of said socket.

An excavating tooth point comprising a relatively elongated unitary element having a ground engaging edge at one end and means at the other end for coupling to an adapter, said coupling means including a plurality of thread means generally helically disposed about a longitudinally extending axis whereby said point is rotated to install the same on said adapter, and tongue means for receiving pin means on said point external of said coupling means for releasably locking said point on said adapter to prevent reverse rotation thereof, said pin means being positioned relative to said axis so that incipient reverse rotation of said point element converts a stress that would normally shear a pin means on said axis to a compressive stress.

A tooth point comprising a unitary metal generally wedge-shaped body having a ground engaging end at the forward end thereof and a generally tapered socket extending forwardly from the rear end thereof, helical thread means in said socket for rotatably mounting said point on an adapter, and tongue means integral with said body extending rearwardly of said socket and equipped with groove means for receiving lock pin means.

An excavating tooth comprising an adapter element and a point element, said adapter element having means at one end for connection to a bucket or the like and means at the other end for coupling to said point element, said point element having an earth engaging edge at one end constituting the tooth forward end and means at the other end for coupling to said adapter element, said coupling means including a nose on one element and a nose receiving socket on the other element, a plurality of cooperating generally helical thread means on said nose and in said socket whereby said point element is rotated about a longitudinal axis to install the same on said adapter element, and lock means externally of said nose releasably connecting said element to prevent reverse rotation of said point element when the same is installed on the said adapter element, said adapter element being equipped with said nose forward of a relatively massive section and said point element being equipped with said socket, said lock means being positioned in said massive section, said nose and socket each being equipped in the apices thereof with generally planar bearing surfaces arranged generally perpendicular to the beam component of a force applied to said point element.

An excavating tooth comprising an adapter element and a point element, said adapter element having means at one end for connection to a bucket or the like and means at the other end for coupling to said point element, said point element having an earth engaging edge at one end constituting the tooth forward end and means at the other end for coupling to said adapter element, said coupling means including a nose on one element and a nose receiving socket on the other element, a plurality of cooperating generally helical thread means on said nose and in said socket whereby said point element is rotated about a longitudinal axis to install the same on said adapter element, and lock means externally of said nose releasably connecting said elements to prevent reverse rotation of said point element when the same is installed on the said adapter element, said nose and socket being equipped with apices having a general polygonal shape in transverse section to define a plurality of intersecting corners, said thread means extending generally along said corner.

An excavating tooth comprising a point and adapter, said adapter at the rear end thereof having means for connection to excavating equipment and a nose at the forward end, said point having an earth-engaging edge at its forward end and a socket for receiving said nose at the rear end thereof, said point having tongues projecting rearwardly of said socket on opposite sides thereof, pin means connecting said tongues to said adapter, a plurality of cooperating generally helical thread means on said nose and in said socket whereby said point is rotatable about a longitudinal axis to install said point on said adapter, said pin means being spaced from said axis so as not to intersect the same, the apices of said nose and socket being generally polygonal in shape to provide beam bearings surfaces, the remainder of said nose and socket being a surface of revolution generated about said axis, said thread means extending into said apices generally at the corners of said polygonal shape.

An excavating tooth point comprising a relatively elongated unitary element having a ground engaging edge at one end and means at the other end for coupling to an adapter, said coupling means including a plurality of thread means generally helically disposed about a longitudinally extending axis whereby said point is rotated to install the same on said adapter, and means on said point external of said axis for releasably locking said point on said adapter to prevent reverse rotation thereof, said coupling means including a tapered socket open at said other end and extending toward said one end, said socket being equipped with an apex which is generally polygonal in section extending transverse to said axis to provide beam bearing surfaces, said thread means extending generally along the corner of said polygonal section, said polygonal section having at least four sides.

A tooth point comprising a unitary metal generally wedge-shaped body having a ground engaging end at the forward end thereof and a generally forwardly tapered socket extending forwardly from the rear end thereof, helical thread means in said socket for rotatably mounting said point on an adapter, and tongue means integral with said body extending rearwardly of said socket and equipped with slot means for receiving lock pin means, the apex of said socket being equipped with generally planar surfaces arranged generally perpendicular to the beam component of an applied force, said surfaces being flanked by said thread means.

An excavating tooth point comprising a relatively elongated unitary element having a ground-engaging edge at the forward end thereof and a socket at the rear end for receipt of an adapter nose, said socket over the majority of its length being forwardly convergent from the rear end thereof and including a surface of revolution generated about the longitudinally extending axis of said tooth point, said socket being interrupted at spaced apart areas by at least four helically disposed grooves, rearwardly tapered tongue means on said point rearward of said socket for releasably locking the same to an adapter to prevent rotational removal of said point from the adapter, and stabilizing surface means at the forward end of said socket.