Adapter element for a paper roll and relative dispenser with rotatable axis equipped with this adapter element

Abstract

An adapter element configured for insertion inside the core of a paper roll to be applied to the support shaft of a dispenser includes an external annular wall adapted for insertion into the core of the paper roll with a predetermined degree of mechanical interference; an axial channel delimited by an annular wall arranged internally to the external annular wall; and first engaging elements configured for releasable engagement to second engaging elements belonging to the support shaft of the dispenser so that, in use, a portion of the end of the support shaft is insertable into the axial channel of the adapter element. A dispenser is also disclosed having the support shaft adaptable for engagement with the adapter element.

Description

FIELD OF THE INVENTION[0001]The present invention concerns the technical field of dispenser devices for paper rolls.[0002]In particular, the invention concerns a particular type of adapter applicable to the cardboard core of the roll which facilitates the application of a roll on a specific dispenser, thus ensuring a better functionality thereof.BRIEF OUTLINE OF THE PRIOR ART[0003]Dispensers for paper rolls, for example toilet paper or paper rolls for industrial use, have long been known.[0004]For example, a particular type of dispenser is described in the US publication U.S. Pat. No. 5,636,812.[0005]This publication describes a dispenser formed by a case inside which a rotatable element is rotatably mounted in idle manner around a hinging axis 16 thereof. This rotatable element has three arms 14 which extend radially from the hinging point 16 and from each end of which a further shaft 18 protrudes orthogonally to the surface thereof. Then each roll is applied to a shaft 18 taking c...

AI Technical Summary

Benefits of technology

The present invention aims to provide an innovative adapter element for a dispenser for paper rolls and a dispenser which includes the adapter. The objective is to address technical disadvantages, including difficulty in inserting paper rolls with deformed cores and difficulty in maintaining the roll in the correct position. The aim is to allow for easy and uniform rolling with different sizes of cores and to firmly fix the roll to the dispenser.

Problems solved by technology

Having said that, a technical disadvantage concerning these types of solutions is that the core of the paper roll to be applied in use does not always have a precise cylindrical shape for a series of reasons.

The compression obviously causes a strong crushing of the core.

Therefore, in all the above-described events, the core, usually made of cardboard around which the paper roll is wound, is deformed or even damaged.

This causes a difficult or even impossible installation of the roll on the support shaft from which the paper is unwound in use.

Moreover, consequently, the rotation of the roll around the support shaft is imperfect, if not even prevented.

This technical disadvantage is particularly inconvenient for the user in the event when the roll is installed on a support shaft of a paper dispenser of the type commonly installed in toilets of business activities such as hotels, restaurants, shopping centers, etc.

Consequently, in the event of poor rolling of the roll for the reasons explained above, the user is not able to reach the paper roll and therefore is not able to unwound the strip.

Furthermore, if rolls of different types are used, the size of the core may be different, therefore having an excessive diameter with respect to the axis on which it must be arranged.

This would lead to an excessive clearance of the roll with respect to the axis with a possibility of malfunction.

This causes problems of stability of the roll which is not well secured to its rotation axis and can slide off.

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