Lock system for excavating tooth point and adapter and for riggi

Details Lock system for excavating tooth point and adapter and for riggi Lock system for excavating tooth point and adapter and for riggi

1998-05-07

1999-10-19

Pezzuto, Robert E.

Excavating

Digging edge

Tooth or adaptor

37453, 172719, E02F 928

Patent

active

059668490

ABSTRACT:
A lock system removably connects an earth-engaging tooth point to an adapter. The lock system is particularly suited to tooth points for large excavating buckets, such as dragline buckets. The forward-extending nose of the adapter fits within the rear-facing socket of the tooth point. Ears extend back from the tooth point on both sides of the adapter and define apertures adapted to receive pins. A hole in the adapter is also adapted to receive the pins. The pins extend through the apertures and into the hole, thus fixedly connecting the tooth point to the adapter. To remove the tooth point, both pins can be driven into the adapter hole and housed there concurrently. The tooth point can then be removed and the pins later driven out of the hole. A lock system also connects a main body pin to a rigging part. The lock system is particularly suited to large rigging parts, such as for draglines. A pair of projections extend from the rigging part and define coaxial apertures and define holes normal to, and partially intersecting the apertures. The main body pin extends between the projections and into the apertures. A pair of locking pins extend through the holes and engage slots in the main body pin. A pair of keepers releasably engage each of the locking pins. Thus, the keepers retain the locking pins in position, and the locking pins in turn retain the main body pin in position.

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