Device for keeping rolled paper in check
OwnerRyszard Gulikinventor
Life of this patent
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Abstract
The device comprising a base (1) and a paper roll assembly comprising an axle (2), a spindle (3), and a roll of paper (4) controls the rotation of a paper roll of different types from full-size to the last sheet on a paper roll. The spindle (3) of rigid tubing with an inner diameter larger than axle diameter fits in the paper core and between side guides (22) of the axle (2) and moves gravitationally alongside slides below the edge of a base protrusion (12). The center of gravity for the spindle with paper roll works as a pendulum with axle as rotation point, sets the slant angle for slides, amplifies pull force, and works with large rolls where swing extends the lengths of slides. Serrated edge (13b) makes perforations in the outside layer of a continuous web of a paper roll.
Claims7
A device controlling a paper roll rotation, comprising:
- (i) a base, having a rectangular back wall with a longer side substantially equal to the length of a paper roll and having a bottom edge protruding in the direction of two sidewalls placed at shorter sides of the back wall, with the sidewalls having rearward and down slanted slides which lengths are equal to a radius of a full-size paper roll plus a radius of a spindle, wherein a vertical distance between a front, and rear ends of the slides are equal to a vertical distance between axes of an axle and a spindle, and wherein the rear ends of said slides end below the edge of back wall bottom protrusion;
- (ii) an axle in three sections divided by two side guides with diameters smaller than the inner diameter of paper roll, wherein two outer sections of said axle work as pivots moving alongside the slides in the sidewalls, wherein a length of a spindle defines a length of a central section of the axle between inner surfaces of the guides, wherein outer surfaces of the guides define the distance between the sidewalls of the base and wherein a diameter of the central section of the axle is substantially smaller than the inner diameter of the spindle;
- (iii) a spindle, being a rigid tube with a length equal to or longer than the paper roll, fits inside the inner diameter of a paper roll mounted overhanded and between inner surfaces of the guides of the axle, has an inner diameter substantially larger than the diameter of said axle, where such difference creates pendulum between axle and spindle that places the center of gravity of the paper roll below the said edge of the back wall protrusion continuously alongside the length of the slide;
- whereby the device ensures distribution of paper from a paper roll, including oversized rolls where the size of pendulum extends the length of the slide at the front end of the slide, places an axis of the paper roll below the protrusion edge of the back wall that prevents upward movement of the paper roll with the pull force at the active side and amplifies an interaction between the outer layer of paper and the protrusion edge of the base on the passive side of the roll, blocking rotation, and assuring separation of the paper sheet with a downward pull independently of the size of the paper roll.
Dependencies are inferred from the claim text.