The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 20, 1990
Filed:
Nov. 25, 1987
Motoatsu Shiraishi, Saitama, JP;
Masaru Sasagawa, Saitama, JP;
Ken Tazou, Saitama, JP;
Ryoichi Kageyama, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A press machine includes at least one mobile bolster movable with respect to the press machine, a plurality of die assemblies mounted on the mobile bolster and arranged in a row at equal intervals, a plurality of handling bars for transferring a plurality of workpieces successively through the die assemblies, one or more workpiece holders detachably mounted on each of the handling bars for holding the workpieces, feed bars for moving the handling bars, lifting/lower units for vertically moving the feed bars, and handling bar gripping devices for gripping the handling bars. A method of changing the workpiece holders comprises the steps of gripping the handling bars with the handling bar gripping devices, releasing the feed bars from the handling bars, elevating the feed bars beyond the die assemblies with the lifting/lowering units, moving the mobile bolster out of the press machine, and detaching the workpiece holders from the handling bars and replacing the workpiece holders with new workpiece holders.