Press

Details Press Press

2004-08-30

2009-08-18

Jones, David B (Department: 3725)

Metal deforming

With means to drive tool

Including screw-actuated tool support

C072S020100, C072S021100, C072S443000, C100S046000, C100S048000, C100S050000, C100S051000, C100S280000, C100S289000, C100S290000, C100S904000

Reexamination Certificate

active

07574891

ABSTRACT:
A pressing apparatus using a motor, in which a driving device for fast feed, which lowers a upper die to a position immediately before pressing, and a motor for pressing, which performs a pressing operation, are used to cause the driving device for fast feed and the motor for pressing to operate cooperatively, and only one position detector, which detects a present position of a slider, is provided for a set of the driving device for fast feed and the motor for pressing. A lock device is provided so as to lock the slider and the screw shaft while the motor for pressing is operating for pressing a work piece.

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