The object of the invention is related to the technical sector of means to dispense lengths of paper, wadded paper and other products, wound up in rolls. Simplified dispensers with central unwindings are known, wherein the roll of paper towels is arranged with its vertical axis of symmetry on a bottom plate of the dispenser, the said bottom being provided with a central opening enabling the passage and outlet of a strip by central unwinding under the pulling action by a user. The strip pulled vertically, is then separated by angular orientation against a fixed cutting component, after the central opening and providing the separation by tearing.
This type of unit has certain disadvantages. Firstly, it requires a lot of space in the horizontal direction, particularly when rolls of paper towels with a large diameter are to be used, in order to have a large stock. Therefore, this calls for the production of bulky and often unattractive units, with complicated shapes with regard to the wall support, roll holder plate and casing or cover. With this in mind, these units are relatively expensive to produce and go against the aim sought after, i.e: to economically outfit a maximum number of public places with this type of unit.
Secondly, the central unwinding of the material in helical form provokes substantial twisting and creasing. Consequently, a very uneven bevel type cut against the cutting component results from improper tearing of the material in the unit under a sudden pulling effect. This leads to placing the dispenser out of order. It is important to point out that the unit consumes a lot more paper than is actually required, leading to substantial waste; one of the major disadvantages of this type of dispenser. Due to the vertical positioning of the center line of the roll, the vertical pulling of the strip is facilitated so that there is no particular resistance before angular orientation in order to carry out the cut.
Furthermore, the fact that the strip of material is very thin and the roll must be stable regardless of its situation of use and consumption, must be taken into account.