Title: Mold changing apparatus for a press machine

Abstract: Mold changing apparatus is disclosed for a press having a slide for the upper mold, a movable bolster for the lower mold and transfer bars for successively transferring work pieces. In exchanging the molds, the upper mold is mounting on mounting members which are raised so as to move the upper mold above the transfer bars, thereby permitting the molds to be moved out of the press by the movement of the bolster without causing interference between the upper mold and the transfer bars held in position in the press.

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Inventors: Shirao, Syoziro (Komatsu, JA)

Application Number: 586081
Filing Date: 1975-06-11
Publication_date: 1976-08-10
Assignee: Kabushiki Kaisha Komatsu Seisakusho (Tokyo, JA)
Primary Class(es): 72/448 83/637, 100/918
Other Classes:
US Patent Ref:

3422660	Jan, 1969	Countess	72/448.
3427854	Feb, 1969	Michelson	72/448.
3452633	Jul, 1969	Hammon	83/637.
3602079	Jun, 1971	Carlson	83/637.

Other Refs: 777,110

Jun, 1957	UK

Primary Examiner: Lanham, C.W.
Assistant Examiner: Crosby, Gene P.
Attorney: Armstrong, Nikaido & Wegner