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:
Jun. 30, 1987
Filed:
Mar. 24, 1986
Koji Ishii, Hiroshima, JP;
Yukito Okuda, Hiroshima, JP;
Ryobi Ltd., Kalam, JP;
Abstract
A plate pressure and printing pressure adjusting mechanism for permitting separate adjustment of the pressure exerted by a rubber blanket cylinder against a plate cylinder and the same rubber blanket cylinder against an impression cylinder. First and second toggle mechanisms are mounted for reciprocation to opposite sides of the axis of rotation of the rubber blanket cylinder and in similar directions to bring the rubber blanket cylinder into and out of engagement with the plate cylinder and impression cylinder, respectively. A first arm fixedly mounted on the eccentric shaft supporting the rubber blanket cylinder is connected through the first toggle mechanism to a first adjusting arm pivotably supported on the frame, and supports an axial adjusting screw and being spring biased so as to cause the end of the adjusting screw to bear on a first radial cam whose periphery may be shifted. A second arm is pivotably supported on the frame with one portion coupled through a link to the eccentric metal part supporting the rubber blanket cylinder. The second toggle mechanism links the other portion of the second arm to a second adjusting arm pivotably supported on the frame and carrying a threaded adjustment screw whose threaded end bears on a second rotatably adjustable radial cam and maintained thereagainst by biasing means acting on the second adjusting arm. By rotating the adjusting cams, the first and second toggle mechanisms are individually adjusted to separately vary the plate pressure and printing pressure.