Locking assembly and method

Details Locking assembly and method Locking assembly and method

2005-03-29

2005-03-29

Pezzuto, Robert E (Department: 3671)

Excavating

Digging edge

Tooth or adaptor

Reexamination Certificate

active

06871426

ABSTRACT:
A locking arrangement (1) for releasably locking a wear tooth (2) to a tooth adaptor (3); the wear tooth (2) being defined by a top wall, a bottom wall and a pair of opposed sidewalls, each sidewall having an elongate slot (5) therethrough; the tooth adaptor (3) being of generally complementary shape to receive said wear tooth (2), and having an elongate cavity (6) on each opposed side thereof adapted to substantially align with a respective slot (5) of said wear tooth (2) when said wear tooth is installed on said tooth adaptor; said slot having a first inner surface, the locking arrangement including a retaining means (4) to be installed in each aligned cavity and slot to releasably lock said tooth (2) to said adaptor (3), the retaining means (4) including a pair of engaging retaining pieces (7, 8) adapted to fit in end-abutting relationship when in said locked position, whereby, an arcuate force is applied to at least one of said pieces (7, 8) to release said pieces from said locked position.

REFERENCES:
patent: 4748754 (1988-06-01), Schwappach
patent: 5088214 (1992-02-01), Jones
patent: 5438774 (1995-08-01), Fletcher et al.
patent: 5966849 (1999-10-01), Moehnke et al.
patent: 6085448 (2000-07-01), Gale et al.
patent: 5493594 (1994-09-01), None

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