SU1253824A1 - Copy guiding unit for typewriters - Google Patents

Description

And the acquisition relates to office equipment and can be used in writing texts.

The aim of the invention is to improve print quality by preventing the printout from being smeared on a storage medium.

FIG. 1 shows the pre / coax mechanism, general view; in fig. 2 is a section A-A in FIG. 1; in fig. 3 is a view B in FIG. one.

The paper-guiding mechanism contains a supporting roller 1, consisting of two different diameters of rollers 2.3, mounted alternately on the shaft axis and mounted on bearings 4 and 5 in walls 6 and 7, driving gear 8 fixed on the shaft pinch rollers 9 and 10. The rollers 9 are spring-loaded with leaf springs 11, and the rollers 10 are tensioned with spring 12. Parallel to the axis of the drive shaft I, means 3 for aligning the information carrier 14 are mounted.

made in the form of an arcuate guide.

The mechanism works as follows.

The storage medium is mounted on the drive shaft 1 and is pressed against the pressure rollers 9 and 10.

The gear wheel 8 turns

the supporting shaft I by the angle required to move the information carrier 14 to one printing line.

Since the linear speed of the rollers

2, at the location of the pressing of the information carrier is greater than the linear speed of the rollers 3, a constant tension of the information carrier 14 in the printing area is ensured. Due to the diameter difference

rollers 2.3 b of the deflector drive shaft 1, the information carrier 4 is bent, which gives it lateral stability against leads. The arcuate guide 13 levels

the storage medium that is fed to the print area is even and smooth.

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Compiled A, Written Editor M. Kelemei Tehred 8.K; 1dar Corrector M. Samborska

Order 4673/20 Circulation 362 Subscription VNNIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Fig.Z

Claims (1)

PAPER MECHANISM FOR WRITING MACHINES containing a paper support drive shaft and two sets of pressure rollers mounted on axes parallel to the axis of the drive shaft, one of which is located in front of the print area, and the other behind the print area, characterized in that, in order to improve quality printing by preventing smearing of the printed record on the storage medium, it is equipped with a means for aligning the storage medium, made in the form of an arcuate guide installed in front of the print area, and paper support in Al consists of rollers of two different diameters mounted alternately on the axis, with rollers of a smaller diameter in contact with the pressure rollers installed in front of the print area, and rollers of a larger diameter with the pressure rollers located behind the print zone. Fi Mr. Wu 1253824 A1