Failsafe element for rotary cam unit used in a flanged die
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United States of America Patent
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Aug 21, 2007
Grant Date -
Aug 26, 2004
app pub date -
Jan 16, 2004
filing date -
Jan 21, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rotary cam assembly for a bending die includes first and second arms pivotally attached to an actuator. Linear movement of the actuator causes rotation of the rotary cam relative to a bending cam. A rotatable element is supported between the first and second arms and guides along a cam surface of a fail-safe element mounted on an upper die. In the absence of actuator movement, the fail-safe element cause rotation of the rotary cam from a released position to a bending position ensuring proper position of the rotary cam relative to a bending cam.
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