Metal deforming – Tool and/or tool holder – Having unitary tool-face
Patent
1977-04-18
1978-05-09
Larson, Lowell A.
Metal deforming
Tool and/or tool holder
Having unitary tool-face
279 76, 403328, B21D 3704
Patent
active
040880087
ABSTRACT:
An adapter member is arranged to be connected between a portion of a machine and a tool to enable quick attachment and removal of the tool to the machine. One end of the adapter member connects to the machine portion and the other end terminates in a reduced diameter section defining an annular shoulder. The tool itself is provided at one end with an entrance bore telescopically receivable over the reduced diameter section of the member so that the one end seats against the annular shoulder. The entrance bore to the tool includes a first axially directed camming surface which depresses the pin or projection when the tool is telescoped over the section. A crescent shaped groove within the bore in turn runs transversely to the axis of the bore and receives the pin or projection, the same snapping into this groove when the entrance bore is fully telescopically received over the reduced section. The crescent shaped groove has a floor which slopes gradually to become flush with the interior bore so that by rotation of the tool, the pin can again be depressed and then the tool axially pulled from the end of the adapter member thereby providing the quick release feature.
REFERENCES:
patent: 1779323 (1930-10-01), Lacerda
patent: 1814655 (1931-07-01), Andreasson
patent: 2105391 (1938-01-01), Almdale
patent: 2324852 (1943-07-01), Kopczynski
patent: 3832075 (1974-08-01), Arai
Henthorn Donald R.
Whatling Leighton H.
American Machine & Hydraulics Inc.
Larson Lowell A.
Pastoriza Ralph B.
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