Retaining mechanism

Details Retaining mechanism Retaining mechanism

1992-04-08

1994-05-17

Taylor, Dennis L.

Excavating

Digging edge

Tooth or adaptor

37452, E02F 928

Patent

active

053116810

ABSTRACT:
A retaining mechanism (10) for captively retaining an adapter (4) to the forward lip (2) of a bucket for earth excavating utilizes a ratcheted pawl (14) within a C-clamp (12). The pawl ratchet (24) engages a complementary pawl surface (26) of the rear half (16b) of a split pin assembly (16). The forward half (16a) of the split pin can be attached to the rear half (16b) by shear screws (52). Moreover, the forward half (16a) of the split pin can be attached to the rear half (16b) by an elastomeric element (64). The split pin assembly (16) acts as a wedge member, firmly securing the adapter (4) to the lip (2). To remove the retaining mechanism (10) from the adapter (4) and lip (2), the pawl (14) may be disengaged from the rear split pin (16b) by manipulating the pawl through an access port (28 ) in the C-clamp (12). Alternatively, the forward split pin (16) may be driven through the opening in the adapter and lip.

REFERENCES:
patent: 3526049 (1970-09-01), Nichols
patent: 3572785 (1971-03-01), Larson
patent: 3722932 (1973-03-01), Dougall
patent: 4267653 (1981-05-01), Hahn et al.
patent: 4413432 (1983-11-01), Bierwith
patent: 4579494 (1986-04-01), Bierwith
patent: 4663867 (1987-05-01), Hahn et al.

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