Die cushion device
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United States of America Patent
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Oct 7, 2014
Issued Date -
N/A
app pub date -
May 7, 2009
filing date -
May 22, 2008
priority date (Note) -
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Abstract
A die cushion device includes a cushion pad, a support section, a servomotor, and a shock absorber device. The support section supports the cushion pad. The servomotor raises and lowers the support section for raising and lowering the cushion pad. The shock absorber device includes a damping section and relieves shock between the cushion pad and the support section. The damping section generates reaction force in accordance with the relative speed of the cushion pad with respect to the support section.
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