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:
Feb. 02, 1993
Filed:
Mar. 19, 1992
Masaaki Suzuki, Tokyo, JP;
Tooru Eshita, Tokyo, JP;
Mutoh Industries Ltd., Tokyo, JP;
Abstract
A sheet-driven type automatic drafting machine has a drive roller or rollers and a rotary drive mechanism connected to the drive roller or rollers, a Y-axis rail extending in the Y-axis direction above the drive roller or rollers, a line-drafting head movably mounted on the rail for movement along the rail and a head driver connected to the head for driving the head along the rail, a shaft positioned above the roller or rollers and parallel to said rail, a first press roller arm pivotally mounted on the shaft for pivoting around the shaft at a predetermined position thereon, a second press roller arm pivotally mounted on the shaft for pivoting around the shaft and for movement along the shaft, the press roller arms each having a press roller at one end thereof engagable with the drive roller or a corresponding drive roller when the press roller arms are pivoted toward the drive roller or rollers for pressing a drafting sheet therebetween and enabling the drafting sheet to be driven in an X-axis direction by the drive roller or rollers, an arm elevating device engaged with the arms for pivotally driving the arms for separating the press roller from the drive roller or rollers, a cursor movable along the Y-axis rail and driven by the head driver with the drafting head, and an arm drive engagement body on the cursor engagable with the second press roller arm for driving the second roller arm along the shaft in the Y-axis direction.