Resilient retention key for replaceable ripper teeth

Details Resilient retention key for replaceable ripper teeth Resilient retention key for replaceable ripper teeth

1977-07-18

1979-05-22

Shedd, Wayne L.

Joints and connections

Interfitted members

Including separably interposed key

403361, 172772, 37142A, B25G 328, F16B 300

Patent

active

041556658

ABSTRACT:
A ripper tip is detachably mounted on a wedge-shaped nose of a shank by an elongated retention apparatus. The retention apparatus comprises a resilient, expandible retainer defining a cavity therein, a lock pin partially disposed within the cavity and an elastomeric slug disposed in the cavity between the retainer and lock pin urging the retainer into bearing contact with the shank and the lock pin into bearing contact with the tip. The retainer is of U-shape section having bottom and side walls which are expanded by the slug to fill an opening formed by a wall through the shank, and also includes flanges at the upper ends of the side walls which do not expand within the opening, yet contact such shank wall.

REFERENCES:
patent: 2483032 (1949-09-01), Baer
patent: 3526435 (1970-09-01), Krekeler
patent: 3894349 (1975-07-01), Moreau

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