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. 27, 1989
Filed:
Feb. 29, 1988
Heizaburou Kato, Shizuoka, JP;
Sankyo Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A roll feed apparatus for intermittently and unidirectionally feeding a sheet material has a first roll fixedly carried by a first roll shaft on a first axis, and a second roll carried by a second roll shaft on a second axis. The rolls cooperate in clamping and feeding sheet material therebetween. A turning shaft, rotatable by an operation lever, includes a first shaft portion on a third axis and second shaft portions on a fourth axis on both axial ends of the first shaft portion, rotatably supported by a housing through self-centering bearings. A pivotable member rotatably supports portions of the first roll shaft on both sides of the first roll. The pivotable member pivotally supported by the first shaft portion of the turning shaft moves the first roll towards and away from the second roll. The third axis extends in parallel with the first axis and is laterally spaced from the first roll. The fourth axis crosses the third axis at a predetermined small angle. The crossing point of third and fourth axes is positioned on or in the vicinity of a straight line which passes an axial mid-portion of the first roll and extends perpendicular to the first axis.