Presses – Safety device
Patent
1999-06-07
2000-07-18
Vo, Peter
Presses
Safety device
100350, B30B 1514
Patent
active
060891483
ABSTRACT:
A fixed stroke power press safety stop block, manufactured of a light weight metal or plastic sufficient to withstand the dead weight of a ram and an attached upper die shoe preventing inadvertent downward movement of said ram. The stop block manufactured to be disposed on top of an existing die stop of a lower die shoe of said press and extending upwardly beneath the upper die shoe in the relative space between said die stop and said upper die platen when ram is in a upper most open position. Said block having a height equivalent to the fixed stroke of said ram less no greater than 0.250 of an inch permitting use of stop block in all die sets used relative to said press notwithstanding variances in shut heights. It is understood said shut height is determined by adjustment of ram crankshaft configuration causing contact by said upper die shoe with lower die stop at the lower most position of said ram. The inventive device is to be used in combination with a removable interlocking plug fixedly attached to said stop block used in conjunction with a circuitry on said press responsible for activation of said ram. Said plug being in a displaced position disrupting completion of said circuitry when block is disposed beneath said upper die platen.
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Huynh Louis K.
Pochal Mark E.
Vo Peter
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