Failsafe element for rotary cam unit used in a flanged die
AssigneeSyron Engineering & Manufacturing, LLC
InventorScott McCallum
Life of this patent
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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.
Claims21
A rotary cam assembly comprising:
- a rotary cam movable between a bending and a released position;
- a first actuator for moving said rotary cam between said bending position and said released position;
- a failsafe device for ensuring proper position of said rotary cam, said failsafe element comprising a rotatable element supported between first and second arms, and an actuator applying force directly to said rotatable element for moving said rotary cam to a desired position.
A rotary cam assembly comprising:
- a rotary cam movable between bending and released positions;
- a first actuator for moving said rotary cam between bending and engaged positions;
- and
- a second actuator biasing said rotary cam toward said engaged position for ensuring said rotary cam moves to said engaged position regardless of a condition of said first actuator.
Dependencies are inferred from the claim text.