Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1986-08-12
1988-08-02
Levy, Stuart S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
225 79, 242 5553, B65H 1900
Patent
active
047609702
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a feeding out or dispensing device for a material web, particularly a paper web, withdrawable from a preferably vertically supported tubular roll, said paper web being axially unwindable preferably from the inside of the roll.
BACKGROUND OF THE INVENTION
Dispensers for paper webs wound on an annular roll wherein the web is unwound from the inside of the roll through one end of the central hollow space of the roll are known. One disadvantage of these known dispensers is that the paper web often is in wound non-planner condition--when withdrawing it from the dispenser for tearing it off, which considerably makes the handling of the paper more difficult.
Another disadvantage with the known dispensers is that when "loading" the dispenser with a new roll, or if the paper is torn off inside the dispenser, the withdrawal of the paper end is complicated and hazardous because the hand has to be inserted into the dispenser from the bottom and might be in touch with the sharp edge at the outlet of the dispenser.
OBJECTS AND FEATURES OF THE INVENTION
The object of present invention is to provide dispenser especially for paper qualities for which the paper falls by gravitation, and which dispenser has a simple construction and is cheap to produce. The dispenser feeds the paper out in planar state and always unwinds the same dispensed quantity, which is comfortable to operate, which minimizes the risk for injuries during tearing off, and which is easy to "load" with a new roll. These functions are provided by a force arranged to act upon at least the inner or outer material part of the material web, located within the roll as seen in the unwinding direction, for arresting the material web to the roll.
DESCRIPTION OF THE DRAWINGS
FIG. 1 shows in perspective a dispenser according to the invention, partly in section.
FIG. 2 shows in perspective a modified paper roll intended for the dispenser according to FIG. 1.
FIG. 3 shows a view analogous to FIG. 2 of a further variant of a paper roll.
FIG. 4 shows a modified embodiment of the dispenser, partly in section.
FIG. 5 shows a section through a third variant of the dispenser.
FIG. 6 shows in perspective a paper roll provided with a force generating means acting upon the roll.
FIG. 7 is a section through a fourth embodiment of the dispenser.
FIG. 8 shows in perspective the dispenser illustrated in FIG. 7.
DESCRIPTION OF THE EMBODIMENTS
The dispenser according to the in FIG. 1 shown embodiment consists of a "disk-shaped" holder 11 provided with a central inner opening 12, which is surrounded by a seat 13 for a vertically positioned paper roll 14. At the disk 11 there is arranged a bracket-like attachment 15, by which the dispenser can be hung on a wall. The disk 11 is further formed with a ring-shaped groove 16, in which the open edge 17 of a cover 18 is placeable. The cover is preferably made by a transparent plastic material, so that the roll 14 inside the cover can be observed. The cover 18 is locked to the disk 11 in a suitable way, and such a way is shown in FIG. 1, where the edge 17 of the cover, provided with a flange, is held in position by a ring-shaped nut 19. A tear-off edge is indicated with the numeral 20.
The paper web 21 of the roll 14 is unwound from the inside of the roll by the end part 22 of the paper web 21 passing through the inner hollow space 23 of the roll. To prevent the paper web from reeling off by falling out by gravity there is a force acting upon the paper web, said force arresting the paperweb to the roll. First after the force is overcome a selected amount of paper can be reeled off from the roll, until a force arrests the paper track to the roll again and stops continued reeling off. In the embodiment shown in FIG. 1 this force is provided by an adhesive force, which should be a little less than the tearing strength of the paperweb, or if the paperweb is provided with perforations, serving as fractural indications, the adhesive power should be less than the tensile strength of said fractural indicati
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Larsson Ove
Larsson Ralf
Levy Stuart S.
Matecki Katherine
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