EP4146046A1

EP4146046A1 - Dispenser, more particularly sanitary dispenser and refill

Info

Publication number: EP4146046A1
Application number: EP21726548.7A
Authority: EP
Inventors: Hans Georg Hagleitner
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-06
Filing date: 2021-05-03
Publication date: 2023-03-15
Anticipated expiration: 2041-05-03
Also published as: EP4146046B1; AT523804A1; AT523804B1; RS65291B1; EP4146046C0; WO2021222961A1; CN115715164A; CA3182350A1

Abstract

The invention relates to a dispenser, more particularly a sanitary dispenser for dispensing toilet paper or hand towel paper, for sections of a refill (2) with a material web (12) wound to form a roll, more particularly a paper dispenser, wherein the refill (2) has at lest one journal (15) which can be guided along a guide path (4) of the dispenser, said guide path extending substantially in a – preferably vertical – path plane, from an insertion position (9) to a dispensing position (10) in which the refill (2) is rotatably mounted, wherein the guide path (4) has, in at least one section, a guiding bridge (22, 22a, 22b) which is oriented substantially parallel to the path plane for engagement into a circumferential groove (25) of the journal (15), said circumferential groove being designed asymmetrically with respect to an axis of rotation (13), wherein a guiding bridge (22a) is provided in the region of the dispensing position (10), and the journal (15) is held there non-rotationally and in the axial direction.

Description

Dispensers, especially sanitary dispensers and refills

The invention relates to a dispenser, in particular a sanitary dispenser for dispensing toilet paper or towel paper. The invention also relates to a refill and a storage unit for such a refill.

In the application, the following terms are used essentially as follows, without being restricted to them:

Dispenser: The dispenser is a device which can preferably be mounted on a wall and has a housing for receiving refills with a material web wound into a roll. The dispenser typically has a guide track inside which leads from an upper insertion position into a lower dispensing position. Bearing pins protruding from the refill are guided in this guideway. In the dispensing position, the refill can rotate to unwind material and dispense from the dispenser in sections.

Refill: A refill is understood to mean a web of material wound into a roll, in particular made of paper. Bearing journals protrude from the refill on both sides, via which the refill is rotatably mounted.

Bearing pins: The bearing pins protruding from the refill are used to rotate the refill in the dispenser.

Axle support: The axle support is connected on the one hand to the material web wound into a roll and on the other hand carries the bearing journals protruding over the roll

There are at least three types of axle brackets:

- An axle beam that extends essentially through the role of the refill. Such an axle beam is called a support rod. - Two separate axle supports, which are inserted from the side into a role - preferably provided with a hollow cardboard core. Such axle supports are called end caps.

- Two separate axle supports, which are preferably pressed into coreless rolls in the axial area from the side. Such axle supports are called retaining points.

Storage unit: A storage unit is a structural unit consisting of an axle support and a bearing pin, which can be used as a whole in a refill.

A large number of designs are known for dispensers for material webs wound into rolls (refills). The material webs are predominantly papers, in particular sanitary or hygienic papers, household papers, etc., but also plastic or metal foils. The dispensers often have opposite walls in which guide tracks are provided from a filling point at least to a dispensing position and, if necessary, further into a collecting chamber for empty storage units receiving the rolls.

A new refill is thus inserted into the two guideways with the two bearing journals of a bearing unit and then generally slides downwards into the dispensing position under the influence of gravity. If the bearing journals are formed at the ends of a support rod, the empty support rod falls further down into the collecting chamber after the roll has been used up and can be removed there.

If the refills are always to be used the same and in the correct position, for example so that the material web is always offered in the same position, then both the two guideways and the two bearing pins are designed differently in order to prevent the incorrect insertion.

The correspondence of the opposing pair of elements of guide track and bearing pin is called coding, and known codes include, for example, the diameter of the bearing pin and the width of the column Guide track, a bearing pin with a bearing groove and webs engaging in this on the guide track, parallel non-rotation surfaces on the bearing pin and on the guide track, etc. By means of different codes, it is particularly possible to avoid refilling a dispenser with unsuitable rollers and to use ensure products that are matched to one another (EP 1927308 B1).

A further development of the coding described above is shown in WO 2013/123536 A2. The support rod (bearing unit) described there for a material web wound into a roll has a bearing journal which is rotatably mounted on the rest of the support rod. In the dispenser itself there is a device (in the simplest case a rib that engages in a groove in the bearing pin) which holds the bearing pin in a rotationally fixed manner. Due to the relative rotatability of the bearing pin to the rest of the support rod on which the material web is wound, the roll with the material web can rotate in the dispensing position and thus the material web can be unwound, although - as already mentioned - the bearing pin is held non-rotatably. If a "wrong" support rod is used, in which the relative rotatability between the bearing surface and the rest of the support rod is not given, the roller cannot rotate in the dispensing position and the dispenser is blocked. This function is collectively referred to as "rotary coding".

The object of the invention is to specify a further coding option for a dispenser, a refill or an associated storage unit and / or to specify a storage unit or refill that can move well guided in at least one guideway of a dispenser.

This object is achieved by a refill with the features of claim 10 or 31, a storage unit with the features of claim 24 and / or a dispenser with the features of claim 1 or 32.

The essence of the invention is that, on the one hand, a special design with an asymmetrical circumferential groove is specified for the refill or its bearing pin and / or, on the other hand, a special guide track with a guide web is proposed for a dispenser, which is aligned parallel to the plane of the track. These features make it possible to provide a new type of coding in which only certain bearing journals or refills fit into certain dispensers.

The asymmetrical circumferential groove according to the invention and / or the matching guide web provided on the donor side and aligned parallel to the web plane allow, apart from the novel coding, also to guide the refilling in the dispenser exactly when moving from the insertion position to the dispensing position, which means that jamming or Canting of the refill in the dispenser is reliably avoided.

In general, the asymmetrical circumferential groove according to the invention will only be provided on one side of the refill, just like the associated guide bar in the dispenser (there as close as possible to the insertion position) to ensure that the refill cannot be inserted into the dispenser the wrong way round.

A guide bar arranged in the area of the insertion position can prevent incorrect insertion of a refill or an incorrectly or non-coded refill from the outset.

The guide bar can also be used in another way, namely on the way from the insertion position to the dispensing position, by attaching a “coding trap” there, for example in a horizontal or slightly inclined section, which is preferably designed as a recess in the guide track. The recess or also several recesses offset one behind the other can be arranged in such a way that only one end of a bearing pin, which is guided exactly over it by the guide web, gets past the recesses or interruptions in the guideway. Incorrectly coded or non-coded bearing pins fall into the recess and can therefore not be used or dispensed in the dispenser.

Another possible use of the inventive guide web is its use in the dispensing position itself. There it can in turn hold the appropriately coded axle journal exactly in position and - if so desired - hold it in a rotationally fixed manner. In such a case, one then has to provide mobility for the refill with respect to the axle journal, because without this mobility / rotatability, a paper web cannot be dispensed with a fixed axle journal take place. Rotary coding can thus be implemented in which only refills that have such a rotary-coded property are suitable for output. This rotary coding can be implemented, on the one hand, in that the axle journal, the asymmetrical circumferential groove of which is held non-rotatably, is rotatably mounted with respect to an axle carrier. This axle support can consist, for example, of an end cap that is inserted into a cardboard sleeve, but it can also be designed as a continuous rod across a roll of paper.

Another possibility to produce a rotatability between the bearing journal and the material web is to mount the material web in a sliding manner on an axle carrier which is fixedly connected to the bearing journal. A relative rotatability of the refill relative to the fixed bearing pin can then also be achieved.

The subject matter of the invention is not only a specially designed dispenser, but also a refill in which the bearing journal has at least one circumferential groove that is asymmetrically designed with respect to the axis of rotation. This circumferential groove will be designed in terms of its shape and dimensions so that it fits with a corresponding guide bar in the associated dispenser.

A design in which the circumferential groove extends into the bearing journal at its greatest depth, starting from the circumference and beyond the axis of rotation, is particularly favorable. Such a very deep circumferential groove in the form of an incision can provide very high associated guide webs on the donor side, which on the one hand allow good mechanical guidance and on the other hand have high coding security against the insertion of incorrectly coded or non-coded chopsticks.

If the bottom of the circumferential groove is essentially flat and preferably runs transversely to the axis of rotation next to it, it can be achieved in a simple manner that, for example, no rotation of the bearing pin is possible in the dispensing position. This then has to be achieved relative to the refill, with which a rotary coding is achieved in combination with the asymmetrically designed circumferential groove.

Incidentally, the term circumferential groove does not mean that the groove extends over the entire circumference in the form of a circumferential groove: on the contrary, it is preferably provided that the circumferential groove extends only part of the circumference, while the remaining circumferential area is preferably essentially part of a cylinder jacket. An asymmetry of the bearing pin can thus be achieved in a simple manner, in particular in the form of an incision.

The invention relates not only to dispensers and refills, but also to a storage unit which is then wrapped with the web of material wound into a roll. The bearing unit itself essentially consists of an axle support, which is connected to the material web, and a specially coded bearing journal. The axle support itself can be formed from two separate end caps, for example. But it can also be a continuous stick.

The bearing pin itself is preferably specially coded only on one side, namely by means of an asymmetrical circumferential groove.

The invention will now be described in more detail with reference to the figures of the accompanying drawing, without being restricted thereto. Show it:

Fig. 1 is a schematic oblique view of a dispenser,

2 and 3 partial cross-sections through the side walls of a dispenser housing,

Fig. 4 is an interior view of a side wall with a first embodiment of the

Safety gear,

5 is an oblique view of an opened dispenser with a correctly coded one

Support rod,

6 shows an oblique view of an opened dispenser with a first embodiment of an incorrectly coded support rod,

FIG. 7 shows a partial cross section through the side wall according to FIG. 6 in the area of

Safety gear,

FIG. 8 shows a partial cross section through the side wall according to FIG. 6 in the area of

Safety gear with a second version of an incorrectly coded support rod,

9 shows a plan view of the safety gear,

Fig. 10 is a plan view of a variant of the safety gear, and 11 and 12 oblique views of the area of the safety device on a dispenser according to FIG. 5,

13 shows a perspective interior view of an opened dispenser with support rods in different positions,

14 shows an enlarged illustration in the region of the insertion position according to FIG. 13,

15 shows a bearing pin in the dispensing position,

16 shows an embodiment of a toilet paper dispenser in a perspective open position,

FIG. 17 shows a representation similar to FIG. 16, but with an inserted bearing pin in two different positions (one insertion position, one dispensing position),

18 shows a storage unit formed from two opposite end caps,

19 shows an embodiment of a refill according to the invention with two end caps in a perspective view,

FIG. 20 shows the refill of FIG. 19 in a side view,

21 shows a bearing unit with a continuous axle support in a perspective view,

22 and 23 are a plan view showing a different rotational state of the journal,

24 shows an exemplary embodiment with a continuous bearing journal of large diameter, in which the bearing journal with the asymmetrical circumferential groove is firmly connected to the axle support

According to FIG. 1, a dispenser for toilet paper, towel paper or the like has a housing 1 with a rear wall, two side walls 3 parallel to one another and an openable cover 6. In the mutually parallel side walls 3, two differently designed guide tracks 4, 5 extend, each in a plane from top to bottom into a dispensing position 10, in which elements (not shown) form a temporary support until the material web 12 wound into a roll 8 is used up. The roller 8 rotates about its axis in which a support rod 11 is arranged with bearing journals 14, 15 protruding beyond the roller 8 on both sides. Instead of on a support rod 11, the material web 12 according to FIGS. 9 and 10 can also be arranged on a cardboard sleeve 31 closed by means of two end caps 30, the bearing pins 14, 15 projecting axially from the two end caps 30.

As shown in FIGS. 2 and 3, the guide tracks 4, 5 in the side walls 3 have different cross sections. The guide track 4 is a simple groove with a rectangular cross-section, and the guide track 5 is a groove with a more complex cross-section loosely engages. In contrast, the bearing pin 15 has an end flange 24, which is offset from the support rod 11 or from the end cap 30 by a neck groove 23, in which a circumferential groove 25 designed as an incision is provided parallel to the neck groove 23. The circumferential groove 25 comprises in particular more than half the diameter of the bearing pin 15, and only a residual cross section remains in the form of a segment of a circle. A fin-like web 22 of the guide track 5 protrudes into the incision 25, so that the bearing pin 15 slides in the guide track 5 in an axially immovable and rotationally fixed manner. The fin-like web 22 extends at least along a horizontal or moderately inclined section of the guide track 5, possibly up to just before the dispensing position 10. The fin-like web 22 in any case bridges the catching device shown in FIG has two interruptions 20a, 20b in the guideway, as will be explained in more detail below.

4 shows a section from a side wall 3 of the dispenser provided with the guide track 5. The guide track 5 begins at the insertion position 9 for the roller 8 with a funnel-like tapering entrance area and continues in a section that slopes slightly backwards. In this, approximately in the middle, two interruptions 20a, 20b are provided one after the other, each in the form of a bulge or depression in the lower side wall of the guide track 5. As mentioned, the fin-like web 22 begins in the entrance area and extends over both interruptions 20a, 20b.

5 shows an open dispenser with a simplified illustrated support rod 11 pushed into the guide tracks 4, 5. As can be seen, the bearing pin 15 slides over the interruptions 20 because, as can be seen from the enlarged illustration in FIG. 3, the support width of the head area 24, that is, its extension parallel to the axis of the roller 8, is greater than the width of each of the two interruptions 20a, 20b. A displacement of the support rod 11 or the cardboard tube with end caps 30 in the axial direction is prevented by a guide surface, which can be provided in different ways. On the one hand, the guide surface can be formed on the fin-like web 22 protruding into the circumferential groove 25. Furthermore, it is conceivable that a web or the like, not shown, protrudes into the neck groove 23, and finally the guide surface can also be provided on the opposite second side wall 3 of the dispenser shown in FIG. 2.

6 to 8 show, corresponding to FIGS. 5 and 6, the same situation with two incorrect or non-matching support rods 1 T. As can be seen in detail from FIGS. 7 and 8, the bearing pin 17 of a support rod 1 T is shorter, so that when it is inserted into the guideway 5, it finds space on the left or, if the neck groove 23 is wider, on the right of the fin-like web 22. Arrived at the interruptions 20a or 20b, the bearing pin 17 falls into the recess, from which the support rod 1 T wound with the full roll 8 can only be gripped by hand with great difficulty and removed again. The interruptions 20a, 20b thus represent a safety device for rollers 8 with protruding, incorrectly or non-coded bearing journals 17.

FIGS. 9 and 10 each show a top view of the section of the guide track 5 from FIG. 4 provided with the interruptions 20a, 20b in two different designs. 9 shows the offset arrangement of the two interruptions 20a, 20b one after the other as well as the fin-like web 22 cut approximately parallel thereto. The width of the side wall of the groove is greater than the width of the bearing journal, i.e. its axial extent parallel to the axis of the roller 8, and greater than the width of the interruptions 20a, 20b, so that the traveling journal 15 does not enter either of the two interruptions 20a, 20b of the Catching device can fall because it rests on at least one of the remaining strips 27a, 27b, 27c of the side wall.

10 shows an embodiment with two interruptions 20a, 20b arranged side by side and separated only by a thin central strip 27d, the guide surface against axial displacement of the support rod 11 or that with end caps 30 provided cardboard tube is formed by the system on the opposite side wall 3 of the dispenser or in its guide track 4. It is obvious that false or non-coded support rods 1 T, as shown in FIGS. 7 and 8, fall into the interruptions 20a, 20b of the safety gear.

11 and 12 show oblique views of the section of the guideway according to FIG. 5, FIG. 11 showing a bearing pin 15 at the insertion position at the entrance into the guideway 5. The circumferential groove 25 parallel to the neck groove 23 between the head region 24 and the body of the bearing pin 15 can be clearly seen. The asymmetrical circumferential groove 25 represents a possibility of coding on the bearing journal side, for which the fin-like web 22 is shaped to match the coding of the guideway 5.

In the embodiment shown in Fig. 13, the interior of an open dispenser is shown. A guide track 4, which has a guide web 22, is arranged in the side wall 3. The guide web 22, which extends like a fin into the guide track 4 from above, engages in the inventive asymmetrical circumferential groove 25 in the end region of the bearing pin 15 and guides it into a first section of the guide track 4 following the insertion position 9 Guide track 4, the interruption 20 already described above is also provided, which stops incorrectly or non-coded bearing journals. Only correctly coded bearing journals with an asymmetrical circumferential groove 25, which are guided by the fin-like guide web 22, can safely pass through the interruption 20 by resting on the guide track 4.

Finally, via positions 15 ', 15 ", the bearing pin finally arrives at position 15'", which corresponds to dispensing position 10. From there, the paper or generally the material web wound into a roll is delivered. It should be mentioned here that only the bearing pin 15 itself is shown in FIG. 13 for the sake of clarity. In reality, the bearing journal is only part of a bearing unit, namely an end cap, as shown on the left in FIG. 18. The entire bearing unit of FIG. 18 also consists of the left end cap with the bearing pin 15 and the right end cap with a purely cylindrical uncoded bearing pin. Fig. 14 shows again in detail a section of Fig. 13 in the area of the insertion position 9, clearly showing how the guide web 22 running parallel to the plane of the path engages in the asymmetrical circumferential groove 25 of the bearing pin 15 and thus guides it safely over the interruption . The interruption, which is denoted generally by 20 in FIG. 13, is in detail a two-part interruption with two laterally offset interruptions 20a and 20b.

15 shows the bearing pin 15 in the dispensing position 10, in which the paper is dispensed by rotating the refill. In this dispensing position 10, too, a guide web 20a aligned parallel to the path plane of the guide path engages in the asymmetrical circumferential groove 25. In this position, the bearing pin is held in a rotationally fixed manner by the engagement of the guide web 20a in the circumferential groove 25. A rotation of the refill roller, as shown in FIG. 19, is only possible because the bearing pin 15 is rotatably mounted relative to the end cap, which is inserted into a cardboard tube of the refill. Block bearings that do not have this rotary coding. In such a case, paper cannot be pulled out from a roll.

The exemplary embodiment shown in FIG. 16 is not a towel dispenser, as in the figures described above, but a smaller dispenser for dispensing toilet paper, which is also designed in a simpler manner. However, a guide track 4 is again provided in the side track 3. In the left side wall in FIG. 16, the bare guide track is shown without the bearing pin inserted. In the opposite, similarly running guide track, which, however, is profiled more simply, two right end caps 30a are shown schematically, as will be explained in more detail with reference to FIG. 18.

FIG. 17 differs from FIG. 16 only in that two bearing pins 15 are shown there in two different positions, namely in the insertion position at the top and in the dispensing position 10 at the bottom.

16 and 17 can be seen in the insertion position 9 a fin-like protruding guide web 22b, which in turn cooperates with an asymmetrical circumferential groove 25 of great depth of the bearing pin 15, so that from the start only refills in the dispenser can be used that have such an asymmetrical circumferential groove - coding -.

16 and 17, in addition to the guide bar 22b in the area of the insertion position 9, there is also a second guide bar 22a in the area of the dispensing position 10. There the bearing pin 15 ′ ″, as FIG. 17 shows, rests on a support 29 of a control lever 28 on. This control lever is moved away by a mechanism not shown when the paper roll is used up, with which the bearing pin and thus the empty refill can fall down from the dispenser.

In the dispensing position shown in FIG. 17, too, the bearing pin 15 ″ is held non-rotatably. The refill can only turn because the bearing pin 15 ‘“ is rotatably mounted in relation to the end cap (rotary coding).

In FIG. 16 it can also be seen that the guide web 22b in the insertion position 9 has a beveled area 18 which enables easier insertion of a bearing pin with an asymmetrical circumferential groove.

The embodiment shown in FIG. 18 is a bearing unit which has two separate end caps 30 and 30a as axle supports, which can be inserted into a cardboard core sleeve 7 of the refill (not shown here) (roll of wrapped paper). In order to make this insertion secured against rotation, the two end caps 30 and 30a have projections 26.

The end cap 30a on the right in FIG. 18 is a standard end cap with a cylindrical bearing pin 14. The left end cap 30 is a special end cap according to the invention; in addition to the end cap itself, it also includes a pivoting bearing pin 15 that rotates around an axis of rotation 13 (central axis through the bearing pin ) is rotatable with respect to the end cap 30. In operation, however - as already mentioned - the bearing pin is held stationary in the dispensing position 10, while the entire refill 2 (material web 12 / roll 8) rotates together with the end caps 30 and 30a.

In FIG. 18, an asymmetrical circumferential groove in the form of an incision can be seen in the head region 24 of the bearing pin 15. The term circumferential groove is used because the Groove starting from the circumference of the otherwise cylindrical head area. The incision is deeper than the axis of rotation 13. The two side walls 25a are parallel to one another and are perpendicular to the axis of rotation 13. The groove bottom 25b is preferably flat and is also perpendicular to the axis of rotation, but in FIG. 18 runs past below this.

The invention is not limited to cylindrical head areas of the bearing journal; for example, cube-shaped or differently designed head areas can certainly be provided. It is essential that there is a groove that extends from the circumferential surface into the interior and is designed asymmetrically with respect to the axis of rotation.

19 shows an embodiment of a refill according to the invention with the end caps of FIG. 18 (the rear end cap 30a is not visible in FIG. 19). The wound material web 12 (roll 8) preferably has a cardboard core sleeve 7 in the middle, which is not visible here. The two end caps 30 and 30a are inserted into these. In principle, however, direct insertion into a material web wound with a cavity can also take place.

In the embodiment shown in FIG. 20, the two end caps 30 and 30a can be seen with their respective bearing pins 14 and 15, the bearing pin 15 being specially designed according to the invention. On the one hand, it is preferably mounted so as to be rotatable about the axis 13 opposite the end cap 30. According to the invention, it has a circumferential groove in the form of an incision 25 which is so deep that it extends beyond the axis of rotation. The two side walls 25a are essentially parallel to one another, optionally open slightly V-shaped upwards, in order to enable easier penetration of a guide web 22 of the dispenser.

The bottom 25b of the groove is preferably flat so that a guide web 22a provided in the dispensing position can rest there and prevent the head area of the bearing pin 15 from rotating. A special rotary coding can thus be implemented, because the paper (material web 12) can only be unwound from the refill 2 when the bearing pin 15a is rotatably mounted relative to the end cap 30 and thus relative to the rest of the refill. 21 shows a further exemplary embodiment of a bearing unit according to the invention, in which there are not two separate end caps 30 and 30a provided as axle supports, but a continuous axle support 11. This in turn has projections 26 so that this axle support is inserted into a preferably coreless wound roll so that it cannot rotate can be. The bearing pin 15 and the axle support 11 are rotatably mounted in relation to one another. Again, the journal 15 has an asymmetrical circumferential groove starting from the circumference and running perpendicular to the axis of rotation.

22 and 23 one sees the bearing unit shown in perspective in FIG. 21 again in a plan view with two different positions of the bearing pin 15 relative to the axle carrier 11. In the position shown in FIG Essentially parallel side walls that open slightly outwards. In FIG. 23, the journal 15 is rotated by 90 ° so that one can see into the groove 25 from above. This means that the bottom of the groove can also be seen.

In an axle bearing area 27, the two parts 15 and 11 are rotatably connected to one another by holding means (not shown in more detail). For example, they can be injection-molded parts that have protruding locking lugs or locking recesses, so that the two parts lock against one another after being pushed in but still remain rotatable. There are numerous possibilities to produce the relative rotatability of the two parts 15 and 11.

In the embodiment shown in FIG. 24, a bearing pin 15 is again provided which has an asymmetrical circumferential groove. The head region 24, which is larger in diameter than a neck groove 23, can also be clearly seen.

In this exemplary embodiment, the bearing pin 15 is not rotatable with respect to the fixed support rod, which is quite large in diameter, but rather is fixedly connected. If the bearing pin 15 is held in a rotationally fixed manner in the dispenser via the asymmetrical circumferential groove 25 in the dispensing position 10, the material web 12 (roll 8) of the refill 2 can only be unwound if this material web can be rotated by sliding relative to the fixed support rod 11a. A cardboard core 7 can optionally be present, however, it is also possible for the material web to be wound directly onto the fixed support rod 11a.

Claims

1. Dispenser, in particular sanitary dispenser for dispensing toilet paper or towel paper, for sections of a refill (2) with a material web (12) wound into a roll, in particular a paper dispenser, the refill (2) having at least one bearing pin (15) which runs along a guide track (4) of the dispenser running essentially in a - preferably vertical - path plane can be guided from an insertion position (9) to a dispensing position (10) in which the refill (2) is rotatably mounted, characterized in that the guide track ( 4) has in at least one section a guide web (22, 22a, 22b) oriented essentially parallel to the plane of the path for engaging in a circumferential groove (25) of the bearing pin (15) which is asymmetrical with respect to an axis of rotation (13), a guide web (22a) is provided in the area of the dispensing position (10) and the bearing pin (15) is held there non-rotatably and in the axial direction.

2. Dispenser according to claim 1, characterized in that a guide web (22b) is provided in the region of the insertion position (9).

3. Dispenser according to one of the preceding claims, characterized in that a guide web (22) is arranged between the insertion position (9) and the dispensing position (10).

4. Dispenser according to claim 3, characterized in that the guide track (4) in the region of the guide web (22) has a horizontally or obliquely running support surface (4a) for the bearing pin (15), which is at least one, preferably two laterally offset from one another and has interruptions (20a, 20b) lying one behind the other.

5. Dispenser according to one of the preceding claims, characterized in that the at least one guide web (22) has two parallel side surfaces running in the direction of the guide track, the distance between the side surfaces preferably being between 1 mm and 5 mm.

6. Dispenser according to one of the preceding claims, characterized in that the guide web (22) has a beveled area (18) on one side and thus its overall height in the direction from the insertion position (9) to the dispensing position (10) on the input side The end of the guide web (22) increases.

7. Dispenser according to one of the preceding claims, characterized in that it has two spaced, substantially parallel side walls (3), in or on each of which a guide track (4) is formed, the guide tracks (4) with respect to a center plane between the both side walls (3) are essentially symmetrical

8. Dispenser according to claim 7, characterized in that at least one guide web (22) is arranged in only one of the two guide tracks (4).

9. Dispenser according to claim 7 or 8, characterized in that the web plane lies parallel to the side walls (3) or coincides with these.

10. Refill, in particular for a dispenser according to one of claims 1 to 9, with a material web (12), in particular made of paper, wound into a roll, and with at least one bearing pin projecting centrally from the roll (8) along an axis of rotation (13). 14, 15), characterized in that the at least one bearing journal (15) has at least one circumferential groove (25) which is asymmetrically formed with respect to the axis of rotation (13).

11. Refill according to claim 10, characterized in that at least one axle support (11, 30, 30a) connected to the roller is provided, on which at least one bearing pin (14, 15) is attached, formed or movably mounted.

12. Refill according to claim 10 or 11, characterized in that of two opposite bearing pins (14, 15) only one (15) has an asymmetrical circumferential groove (25), while the other opposite bearing pin (14) is fixedly connected to the axle carrier (11, 30a) arranged centrally with respect to the roller (8) or is formed on it.

13. Refill according to claim 10 to 12, characterized in that the axle support (11) extends through the roller (8) and has a bearing pin (14, 15) on both sides, at least one of which has an asymmetrical circumferential groove (25) .

14. Refill according to claim 10 to 13, characterized in that two separate axle supports are provided for a roller (8), which are designed as - preferably essentially cylindrical - end caps (30, 30a) which are inserted into the roller at opposite ends are used, a bearing pin (15) with an asymmetrical circumferential groove (25) being provided on at least one end cap (30).

15. Refill according to claim 10 to 14, characterized in that two separate axle supports are provided for a roll, which are designed as holding tips which are axially inserted at opposite ends into the - preferably corelessly wound - roll, with at least one holding tip an asymmetrical circumferential groove is provided.

16. Refill according to one of claims 10 to 15, characterized in that at least one bearing pin (15) is movably mounted on the axle support (11, 30).

17. Refill according to claim 16 and one of claims 10 to 15, characterized in that at least one bearing pin (15) is rotatably mounted on the axle carrier (11, 30).

18. Refill according to one of claims 10 to 17, characterized in that at least one axle carrier - preferably by radially protruding projections (26) - is held in a rotationally fixed manner in the roller (8).

19. Refill according to one of claims 10 to 17, characterized in that at least one axle support (11 a) is rotatably held in this relative to the roller (8).

20. Refill according to one of claims 10 to 19, characterized in that the material web is wound into a coreless roll.

21. Refill according to one of Claims 10 to 19, characterized in that the material web is wound around a cylindrical core (7) - preferably made of cardboard.

22. Refill according to one of claims 10 to 21, characterized in that the material web is a toilet paper - preferably provided with tear-off perforations.

23. Refill according to one of claims 10 to 21, characterized in that the material web is a towel paper - preferably formed without tear-off perforations.

24. Storage unit in particular for a refill according to one of claims 10 to 23, with an axle support which can be inserted into a web of material wound into a roll and which has at least one circumferential groove (25) which is asymmetrical with respect to the axis of rotation (13) defined by the bearing pin (15) ) in the bearing pin (15).

25. Bearing unit according to claim 24, characterized in that at least one bearing pin (15) is rotatably mounted relative to the axle carrier (11, 30) about its longitudinal axis (13).

26. Bearing unit according to claim 24 or 25, characterized in that the circumferential groove (25) running transversely to the axis of rotation (13) extends only over part of the circumference of the at least one bearing pin (15), while the remaining circumferential area preferably essentially part of one The cylinder jacket is whose height in the direction of the axis of rotation is greater than the width of the groove.

27. Bearing unit according to one of claims 24 to 26, characterized in that the circumferential groove (25) extends in its greatest depth, starting from the circumference and beyond the axis of rotation (13) into the bearing journal (15).

28. Bearing unit according to one of claims 24 to 27, characterized in that the two side walls (25a) of the circumferential groove (25) are essentially perpendicular to the axis of rotation (13).

29. Bearing unit according to one of claims 24 to 28, characterized in that the bottom (25b) of the circumferential groove (25) is essentially flat and preferably extends transversely to the axis of rotation (13) next to it.

30. Bearing unit according to one of claims 24 to 29, characterized in that the circumferential groove (25) in an end-side, substantially cylindrical

Head region (24) is formed, to which a neck (23) of reduced diameter is connected.

31. Refill with a storage unit according to one of claims 24 to 30 and a material web (12) wound into a roll, in which the storage unit (11, 30, 30a;

14, 15) is used.

32. Dispenser according to one of claims 1 to 9 with a refill (2) according to one of claims 10 to 23 or claim 31.