Tooth and adaptor assembly
First Claim
1. An adaptor for releasably attaching a bucket tooth to an excavation tool, the adaptor comprising:
- a) a rear portion adapted for attaching to an excavation tool;
b) a front portion adapted for a sliding fit with a corresponding socket disposed on a bucket tooth;
c) an intermediate portion comprising an exterior surface and a base adjacent to the rear portion, the intermediate portion narrowing a cross-sectional area from the base to front portion;
d) a substantially planar surface disposed on a portion of the exterior surface; and
e) a passageway extending from the planar surface at least partially into the adaptor, the passageway adapted to receive a retainer pin for releasably attaching the bucket tooth to the adaptor.
2 Assignments
0 Petitions
Accused Products
Abstract
A tooth and adaptor assembly for a dipper bucket includes an adaptor having a rear portion for attaching to the dipper bucket, a tooth capable of releasable attachment to the adaptor and a retainer pin for securing the tooth to the adaptor. The adaptor further includes a tapering intermediate portion that narrows to a rectangular front portion. The adaptor further includes a planar surface on a portion of its intermediate portion and a cavity on the planar surface for receiving the retainer pin. The tooth has a tip at its front end for digging and a socket at its rear end configured to receive the front and intermediate portions of the adaptor. A small opening on the rear end of the tooth aligns with the cavity when the tooth is seated on the adaptor. The retainer pin is urged outward of the cavity by a biasing element to engage the small opening on the tooth so as to secure the tooth to the adaptor.
41 Citations
86 Claims
-
1. An adaptor for releasably attaching a bucket tooth to an excavation tool, the adaptor comprising:
-
a) a rear portion adapted for attaching to an excavation tool; b) a front portion adapted for a sliding fit with a corresponding socket disposed on a bucket tooth; c) an intermediate portion comprising an exterior surface and a base adjacent to the rear portion, the intermediate portion narrowing a cross-sectional area from the base to front portion; d) a substantially planar surface disposed on a portion of the exterior surface; and e) a passageway extending from the planar surface at least partially into the adaptor, the passageway adapted to receive a retainer pin for releasably attaching the bucket tooth to the adaptor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A bucket tooth for releasably attaching to an adaptor attached to an excavation tool, the bucket tooth comprising:
-
a) a longitudinal body comprising a front tip portion adapted for excavating disposed on one end and a rear portion disposed on an opposing end; b) a socket disposed on the rear portion, the socket comprising a mouth, a side wall and an interior mating surface adapted for a sliding fit onto an exterior surface of an adaptor; c) a substantially planar surface disposed on a portion of the interior mating surface; d) an aperture disposed on the planar surface, the aperture adapted to substantially align with a passageway disposed on the adaptor; and e) a catch disposed on the planar surface between the mouth and the aperture, the catch adapted to secure a retainer pin disposed in the passageway to the aperture, the retainer pin comprising a biasing element adapted to urge the retainer pin to engage the aperture when the tooth is substantially seated on the adaptor thereby preventing the tooth from being removed from the adaptor. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
-
38. A retainer pin adapted for releasably attaching a bucket tooth to an adaptor, the tooth comprising a socket having an interior surface and adapted for sliding fit on to the adaptor, the retainer pin comprising:
-
a) a longitudinal body having first and second ends, the body being adapted for insertion into a passageway disposed on an adaptor; b) a biasing element disposed on the first end; and c) the second end adapted to seat in an aperture disposed on a socket interior surface of a bucket tooth when the retainer pin is inserted first end first into the passageway of the adaptor thereby retaining the tooth on the adaptor once the tooth is substantially seated on the adaptor. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45)
-
-
46. A bucket tooth and adaptor assembly for an excavation tool, the assembly comprising:
-
a) an adaptor comprising; i) a rear portion adapted for attaching to an excavation tool, ii) a front portion adapted for a sliding fit with a corresponding socket disposed on a bucket tooth, iii) an intermediate portion comprising an exterior surface and a base adjacent to the rear portion, the intermediate portion narrowing in cross-sectional area from the base to the front portion, iv) a substantially planar first surface disposed on a portion of the exterior surface, and v) a passageway extending from the planar surface at least partially into the adaptor, the passageway adapted to receive a retainer pin for releasably attaching the bucket tooth to the adaptor; b) a bucket tooth adapted to releasably attach to the adaptor, comprising; i) a longitudinal body comprising a front tip portion adapted for excavating disposed on one end and a rear portion disposed on an opposing end, ii) a socket disposed on the rear portion, the socket comprising a mouth, a side wall and an interior mating surface adapted for sliding fit onto the adaptor, iii) a substantially planar second surface disposed on a portion of the interior mating surface adapted to line up with the planar first surface when the tooth is substantially seated on the adaptor, iv) an aperture disposed on the planar second surface, the aperture adapted to substantially align with the passageway when the tooth is substantially seated on the adaptor, and v) a catch disposed on the planar second surface between the mouth and the aperture, the catch adapted to urge a retainer pin disposed in the passageway to seat into the aperture when the tooth is substantially seated on the adaptor thereby preventing the tooth from being removed from the adaptor; and c) a retainer pin, comprising; i) a longitudinal body having first and second ends, the body adapted to be inserted into the passageway, ii) a biasing element disposed on the first end, the biasing element adapted to compress when the retainer pin is inserted into the passageway and the tooth is being substantially seated on the adaptor, and iii) the second end adapted to pass over the catch and to seat in the aperture when the retainer pin is inserted in the passageway and the tooth is being seated onto the adaptor whereupon the biasing element urges the second end to seat into the aperture once the tooth is substantially seated onto the adaptor. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86)
-
Specification