Metal deforming – By tool-couple embodying nonplanar tool-face – With complementary tool-faces
Patent
1991-04-03
1992-09-22
Crane, Daniel C.
Metal deforming
By tool-couple embodying nonplanar tool-face
With complementary tool-faces
72416, 29237, B21D 4104, B23P 1100
Patent
active
051486989
ABSTRACT:
A compression tool includes a housing having adjacently disposed first and second oppositely disposed portions defining therebetween a clearance. First and second pivot levers are provided, and each of the levers is pivotally secured to one of the portions and extends therefrom beyond the housing. At least three compression jaws are operably associated with the housing and disposed about the clearance. One of the jaws is secured to the housing and the other two of the jaws are each connected to one of the levers and are pivotal therewith. The one jaw is separate from the first and second levers. Each of the jaws has an arcuate compression surface. A movement assembly is operably associated with each of the levers and the associated jaw for causing cooperating movement thereof. A drive assembly is operably associated with each of the levers and is disposed exteriorly of the housing for causing pivoting thereof between a first open position and a second closed position. Pivoting of the levers from the first open to the second closed position causes the other two jaws to pivot on each respective lever and relative to the one jaw so that the compression surfaces define a circle for compressing a work piece therebetween.
REFERENCES:
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patent: 2973024 (1961-02-01), Merriman
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patent: 3688553 (1972-09-01), Demler
patent: 3695087 (1972-10-01), Tuberman
patent: 3756064 (1973-09-01), Erdmann
patent: 4276765 (1981-07-01), Yoneda
Berenato, III Joseph W.
Crane Daniel C.
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