EP0535182B1 - Foil dispenser with sectioning device - Google Patents

Abstract

In a foil dispenser with a sectioning device, a smooth, terminal lug of foil for gripping and withdrawing a fresh sheet of foil is always available and the wear- and maintenance-free sectioning device can be used for all types of foil. To this end, the foil dispenser has housing (1, 11, 21, 101, 110, 120, 130, 140, 160, 180) with a withdrawal slit (5, 15, 25) and a blade carrier (2, 12, 22, 102, 112, 122, 132, 142, 182) with a cutting slide (64, 65, 66, 67, 168, 188, 191, 192), and after a piece of foil is withdrawn the whole surface of the terminal lug of foil (4) is completely covered in a gap (3, 13, 23, 103, 113, 123, 133, 143) between the housing, in the region of the withdrawal slit (5, 15, 25) and a blade groove (6, 16, 26), the blade carrier being moveable with respect to the housing. The foil dispenser with sectioning device can be used, in particular, with household foils such as aluminium foil, paper and transparent foils or similar.

Description

The invention relates to a film dispenser according to the preamble of the main claim.

Film dispensers with a separating device, in particular for household films such as aluminum, paper, transparent films or the like, are generally known. These household films are usually sold individually packaged in cardboard boxes, which are themselves designed as film dispensers, with the film being able to be separated from the film roll at a sawtooth-shaped tear-off edge. In practice, however, this is often impossible because the cardboard box deforms in the hand during such an attempt or the tear-off edge, which is also made of paper or light metal, bends, so that tear-off is made considerably more difficult and a straight cut is made virtually impossible. Furthermore, with these previously known film dispensers, the remaining film flags that still extend out of the film dispenser are not held exactly, so that when the film roll rotates against the pull-out direction when the dispenser housing is slightly shaken, it can put back on the roll. A considerable effort is then required to remove a film web again.

In addition to tear-off edges, separating devices are also known (EP 0 265 552), which, however, have the disadvantage that in each case only one is matched to one type of film Cutting system is used. If other types of film are inserted in the film dispenser, these cutting systems quickly become blunt and can no longer guarantee a clean cut. Furthermore, additional precautions often have to be taken with which a film can be held during a cutting process, which requires additional technical and constructive effort.

Foil dispensers are also known (US Pat. Nos. 3,236,427, 2,823,969), in which there is a removal slot and a small space formed by the housing and knife carrier. The knife holder of this film dispenser is movable relative to the housing, preferably rotatably mounted. Opposite to the knife carrier, the gap is formed between the housing and knife carrier, in which a short, grippable film tab is available for gripping and pulling out another film piece. By means of gap spaces formed between the knife carrier and the housing, after the removal of a piece of film, the film flag is held or clamped between edges provided for this purpose. The film roll is guided either in a specially designed chamber in which the film roll lies freely or by means of cylindrical guide bolts which engage in the film roll and hold it.

A device for receiving a film roll is also known from DE 38 23 335 A1, which consists of a fixed housing part and a hinged cover arranged at the front, behind which the film roll is mounted and has a cutting carriage which can be moved transversely to the housing and the film width, with its cutting device a flag pulled off the film roll can be cut off outside the film dispenser. A clamping gap arranged between the hinged lid and the housing simultaneously forms the passage for the foil flag, as long as the hinged lid is not loaded. When the hinged lid is loaded, e.g. B. when operating the cutting device, the film flag is clamped. Such a film dispenser can also have a plurality of film rolls in a housing, each with its own cutting devices and hinged covers.

A disadvantage of the film dispensers described above is, above all, that, after cutting off a piece of film, the film flag can be clamped in a gap formed between the knife carrier and the housing, but the clamping takes place only in short film regions, provided that the knife carrier is non-positive, preferably by its own weight, the film on corresponding edges of the housing presses. Furthermore, it is a great disadvantage that to pull out a piece of film from the roll between the knife carrier and the housing, two-handed operation is required to lift and hold the knife carrier. Also, the guidance of the film roll in the film dispenser is largely indefinite, which means that, particularly when stored in drawers or the like, the film flag cannot be pulled back into the interior of the film dispenser and it cannot be placed against the film roll.

The object of the present invention is therefore to provide a film dispenser which ensures that the film roll is securely received and guided in the dispenser with a film flag unwound therefrom by pulling off a piece of film, the secure holding of the film flag in particular having to be ensured and pulling off a further piece of the film is ensured by gripping the film flag with simple, quickly comprehensible operating handles, and the film piece is securely cut off in a handy cutting position.

The solution to this problem is conveyed by the technical teaching described in the characterizing part of the first claim.

Essential to the invention for the proposed film dispenser is the special arrangement of the removal slot and knife groove with respect to one another, which are arranged at a relatively large angular distance from one another on or in the housing of the film dispenser, at least this area of the housing being covered over the entire area by a knife carrier which corresponds to the contour of the housing is adapted over a substantial part and forms a gap in the cutting position between the removal slot and the knife groove, in which a projecting foil tab completely, ie is covered on both sides and is protected from external influences, and that the knife carrier can be moved from a cutting position to grip the film flag. After the knife holder has been moved out of the cutting position, the protruding film flag can be gripped and a film piece can be pulled out of the film dispenser.

According to a preferred embodiment, the housing of the film dispenser and the knife carrier are cylindrical, the knife carrier on the housing being rotatable in one or both directions. This embodiment, like other embodiments, has a removal slot which extends at least to one of the housing ends and through which a film tab for inserting a film roll can be threaded. This removal slot can be very wide by design to make threading as easy as possible. Approx. The knife groove is arranged 90 degrees to the removal slot, the outer diameter of the housing being somewhat reduced in the area in between in order to create the gap space. This gap space has the advantage, on the one hand, that the film is not pressed against the surface of the housing by the knife carrier and therefore does not adhere very firmly to the housing, and, on the other hand, that the direction of rotation of the housing within the knife carrier surrounding the housing is a good two thirds is freely selectable.

In a further advantageous embodiment of the film dispenser, the housing is also cylindrical, but the knife carrier surrounds it only in an angular range of approximately 100 degrees, the side facing away from the cutting slide, which extends approximately beyond the removal slot, being hinged to the housing via a hinge is attached. The film lug protruding from the removal slot thus remains after separating a film web between the housing and the knife carrier, which can simply be folded away for gripping the film lug. When folding onto the housing, two locking cams, which are located on the side at the front end of the knife carrier, snap into two catches of the housing so that the knife carrier remains in this position even when the film dispenser is put down, so that the film flag is fully covered in this version too and is preserved in its original length.

Another advantageous embodiment of the invention consists of a likewise cylindrical housing, on the front side of which a knife carrier, which likewise encloses the housing by approximately 100 degrees, is mounted eccentrically. In the removal position, this is pivoted so that it clears the removal slot and the knife groove, so that a film web can be removed from the housing without any problems. In the closed position, the knife carrier is pivoted over the removal slot and knife groove, so that a gap is also created here, which protects the film from external influences. To limit the swiveling movement of the knife carrier, the housing is provided with a notch in the removal position and with a stop cam in the closed position. Another additional advantage of the above-mentioned film dispenser with separating device can be seen in the storage of the film roll, which is frictionally centered on the conical bodies engaging in the roll, and which can even be clamped centrally in the film dispenser if both cone bodies are adjustable. The adjustment mechanism of the cone body can be through many different mechanisms, such as B. by threads that have such a high pitch that they act self-locking or by other locking mechanisms.

Embodiments in which the film rolls can be inserted by opening or unscrewing the housing can be emphasized as further advantageous configurations of the subject matter of the invention. The housing is advantageously opened via a snore, which divides the housing into an upper and a lower part. The design of the hinge is freely selectable, the use of a film hinge appears to be a cheap variant.

Another embodiment of the housing consists of two partial cylinders, of which the outer encloses the inner in such a way that in a certain position relative to one another a lateral longitudinal opening is created which is wider than a film roll to be inserted thick. For the design of the knife carrier, there are several favorable design forms in these two aforementioned basic variants. For example, the knife carrier can have the shape of a cylindrical cutout of approximately 90 degrees, the inner radius of which roughly corresponds to the outer radius of the housing part and at the ends of which are arranged disks arranged perpendicularly thereto, which engage in the front openings of the housing in such a way that the knife carrier opens the housing surface is pivotable. The possible swivel angle of the knife carrier can be limited to any desired angular dimension by housing grooves or the like.

These disks, like the disks used in the shell-shaped upper part, have a large central bore, which serves to be able to insert a plug axially into the film reel into the film reel after the film roll has been inserted and the housing closed. The housing is kept closed in the simplest way and the film roll is centered. To prevent unwanted removal of the plug from the housing, it is equipped with a catch that strikes an inner surface of the housing when the plug is pulled out.

Furthermore, it is particularly advantageous to alternately provide the outside of the housing with smooth and matt surface sections which serve for the functionality of the film dispenser and also for easier handling. For example, thin transparent film adheres specifically to high-gloss surfaces, so that the knife holder can be turned over in any direction without the film lifting off and wrinkled. On the other hand, the transparent film stands out from the matt surfaces, which can be used to allow a narrow strip with a matt surface in the area of the cut edge in order to be able to lift a small piece of film if it is desired to pull out another film web. Aluminum foil, on the other hand, partly reacts in opposite ways, i.e. it adheres to the rougher surfaces, which is also desirable in the area of the knife groove, as this can produce an excellent cut quality.

The axial storage of a film roll in a dispenser housing can take place not only through the mentioned stopper, but also particularly advantageously via a cuboid block fastened on a spring tab, which is briefly pivoted when the roll is inserted so that a correspondingly rounded end face on the inside Cardboard sleeve rests and presses axially against an inward-facing surface of the block on the opposite side against the end face of the cardboard sleeve and the entire film roll is held in this way. The angular position of the cuboid block determines the pull-out resistance of the film web.

A particular advantage of the film dispenser with separating device is the simple construction of the cutting device from at least one rotatable cutting wheel and a cutting knife assigned to it, which cooperates together with a knife groove which is matched to it in shape.

A particularly advantageous embodiment of the inventive separating device has two rotatable cutting wheels arranged opposite one another, between which a knife is arranged to be stationary or tiltable about an axis. The cutting wheels perform one or more tasks during the cutting process. In all cases, it holds the film on both sides of the knife groove fixed to the housing or prestresses it between the two cutting wheels engaging in the knife groove. When cutting aluminum and paper foils, this pre-tension is sufficient to exceed the tensile strength of the respective material, so that the knife arranged between the cutting wheels is not stressed, and when the transparent film is separated, it is stretched tightly by the spaced-apart cutting wheels , can separate them easily and almost without wear.

The most advantageous embodiment of the cutting wheels is a bevel gear shape, the cutting wheels with their large end faces being arranged facing one another in the cutting slide. They are about the same size, own the same thickness, the same cone angle and the same diameter of the smaller end face. Parts of the cone surfaces roll on the active surfaces of the knife groove, with a further part of the cone surfaces still extending into the knife groove. The body edge of one of the two cutting wheels, which is formed by the large end face and the conical surface, is rounded, while the same body edge of the other cutting wheel is sharp-edged. In embodiments with only one cutting wheel, only the sharp-edged one is present.

The fixed cutting knife, which can also be designed to be tiltable, has a V-shaped cutting edge, so that it is functional from both end positions of the cutting carriage. The cutting angles are dimensioned such that they lie in the area of the chamfers of the knife groove behind the contour of the cutting wheels, so that the desired cutting or separating effect is made possible at all. Below the bevels, however, the knife tip emerges from the contour of the cutting wheels and extends into the area of the groove base.

It can also prove to be very practical and advantageous that the knife holder can have a further separating device, which is located, for example, on its front edge in the area of the knife guide, and which consists of teeth cut into the knife holder and sharpened on several sides, which are shaped in this way can that a tooth flank continues to rest on the housing, thereby largely eliminating the risk of injury. The user of such a film dispenser can therefore choose whether he wants to achieve a straight clean cut or a slightly jagged tear-off edge with a very high quality.

The greatest advantage of this film dispenser according to the invention is therefore its versatility. On the one hand, it can be handled with both hands or one-handed, does not require any special attention after use, but can be stored carefree after removing a film, even on damp documents or in drawers, in which it is flung back and forth when opening and closing the same, without the risk that the foil flag slips back into the housing and can be threaded back into the removal slot only with difficulty. Furthermore, the film dispenser can be used individually or together with several others in permanently mounted wall mounts or table devices, in which it is stored ready for use or can be easily removed for use.

Further advantageous refinements of the invention emerge together with the further subclaims.

Some exemplary embodiments of the subject matter of the invention are described in more detail below with reference to drawings.

Figur 1

Querschnitt durch einen Folienspender mit angedeuteter Zwischenstellung des verdrehten Messerträgers,

Figur 2

Querschnitt durch einen Folienspender mit angedeutetem angeklappten Messerträger,

Figur 3

Querschnitt durch einen Folienspender mit in Schließstellung geschwenktem Messerträger,

Figur 4

Querschnitt durch einen Folienspender mit in Entnahmestellung geschwenktem Messerträger,

Figur 5

Betätigungsablauf des Folienspenders mit in Schneidposition verdrehtem Messerträger,

Figur 6

Betätigungsablauf des Folienspenders mit in Zwischenstellung verdrehtem Messerträger,

Figur 7

Betätigungsablauf des Folienspenders mit in Entnahmestellung verdrehtem Messerträger,

Figur 8

Ansicht eines Folienspenders mit verdrehbarem Messerträger in Entnahmeposition,

Figur 9

Querschnitt durch ein Gehäuse des Folienspenders nach Fig. 8,

Figur 10

Seitenansicht eines Gehäuses des Folienspenders,

Figur 11

Teilansicht eines Folienspenders nach Fig. 10,

Figur 12

Querschnitt durch einen Folienspender mit verdrehbarem Messerträger in Schneidposition,

Figur 13

Teilansicht des Folienspenders aus Figur 12 im Schnitt,

Figur 14

Querschnitt durch einen Folienspender mit Schneidsystem für Klarsichtfolie,

Figur 15

Messervariante zum Schneiden von Aluminium und Papierfolie nach Fig. 14,

Figur 16

Teilansicht des Folienspenders der Fig. 14 im Schnitt,

Figur 17

Querschnitt durch einen Folienspender mit Schneidsystem für Aluminium- und Papierfolien,

Figur 18

eine Messervariante für sehr kleine Rollen, entsprechend Fig. 17,

Figur 19

Teilansicht des Folienspenders der Fig. 17 im Schnitt,

Figur 20

Querschnitt durch einen Folienspender mit einem Schneidsystem nur für Klarsichtfolie,

Figur 21

Teilansicht des Folienspenders der Fig. 20 im Schnitt,

Figur 22

Querschnitt durch einen Folienspender mit zusätzlicher Abrißkante,

Figur 23

Teilansicht des Folienspenders gemäß der Fig. 22,

Figur 24

Querschnitt durch einen Folienspender mit verdrehbarem Messerträger und radialer Zahnreihe,

Figur 25

Ansicht des Folienspenders gemäß Figur 24 mit Teilschnitt,

Figur 26

Längsschnitt durch einen Folienspender mit beidseitig verstellbaren Kegelkörpern,

Figur 27

Längsschnitt durch einen Folienspender mit einseitig einstellbarem Kegelkörper,

Figur 28

Längsschnitt durch einen Folienspender mit rastbarem Kegelkörper,

Figur 29

Ansicht von oben des in Figur 28 dargestellten Folienspenders,

Figur 30

eine Wandhalterung mit zwei Folienspendern in Vorderansicht,

Figur 31

eine Seitenansicht einer Wandbefestigung gemäß Figur 30,

Figur 32

eine Seitenansicht der gegenüberliegenden Wandbefestigung gemäß Figur 30,

Figur 33

Draufsicht auf eine Wandbefestigung gemäß Figur 32,

Figur 34

eine Wandbefestigungsvariante mit zwei Folienspendern in Vorderansicht,

Figur 35

eine Seitenansicht der Wandbefestigung gemäß Figur 33,

Figur 36 und 37

eine Aufhängevorrichtung für einen Folienspender in zwei Ansichten,

Figur 38 und 39

einen aufgeklappten Folienspender in zwei Ansichten

Figur 40 und 41

einen geschlossenen Folienspender in zwei Ansichten,

Figur 42 und 43

Anordnung glatter und matter Oberflächen am Folienspendergehäuse,

Figur 44 und 45

eine Schnittdarstellung des runden Gehäuses eines Folienspenders in 2 Ansichten,

Figur 46 und 47

eine Schnittdarstellung des Gehäuses eines Folienspenders in zwei Ansichten,

Figur 48

eine Seitenansicht des Folienspenders der Figuren 46 und 47, aufgeklappt im Schnitt,

Figur 49

eine Seitenansicht des Folienspenders der Figuren 46 - 48 im zugeklappten Zustand,

Figur 50 und 51

Darstellung eines runden Folienspendergehäuses mit Aufspannvorrichtung für die Folienrolle in zwei Ansichten,

Figur 52 und 53

Darstellung des aufgeklappten Folienspenders nach Figur 50 und 51,

Figur 54 und 55

Variation eines Messerträgers in zwei Ansichten,

Figur 56 und 57

einen Folienspender mit seitlich erzeugbarer Öffnung in geöffnetem Zustand in zwei Ansichten,

Figur 58 und 59

Folienspender gemäß Figuren 56 und 57 in Entnahmestellung,

Figur 60 und 61

zwei Versionen einer axialen Folienhalterung in zwei Ansichten,

Figur 62 und 63

eine weitere Folienspenderversion in Schneidstellung in zwei Ansichten,

Figur 64 und 65

der Folienspender gemäß Figur 62 und 63 in Entnahmestellung in zwei Ansichten,

Figuren 66 - 69

Ausführungsformen eines Reibrades an einem Folienspender in verschiedenen Ansichten und Darstellungen,

Figur 70

einen Querschnitt durch eine Schneidvorrichtung,

Figur 71

eine Seitenansicht der Schneidvorrichtung gemäß der Figur 70 im Schnitt,

Figur 72

einen Querschnitt durch eine weitere Ausführungsform einer Trennvorrichtung,

Figur 73

eine Seitenansicht der Trennv orrichtung gemäß der Figur 73 im Schnitt,

Figur 74

einen Schneidschlitten mit schräggestelltem Reibrad.

Show it:

Figure 1

Cross-section through a film dispenser with indicated intermediate position of the twisted knife carrier,

Figure 2

Cross-section through a film dispenser with the knife holder indicated,

Figure 3

Cross section through a film dispenser with the knife carrier pivoted in the closed position,

Figure 4

Cross section through a film dispenser with the knife carrier pivoted into the removal position,

Figure 5

Actuation sequence of the film dispenser with the knife holder turned in the cutting position,

Figure 6

Actuation sequence of the film dispenser with the knife carrier twisted in the intermediate position,

Figure 7

Actuation sequence of the film dispenser with the knife carrier turned in the removal position,

Figure 8

View of a film dispenser with rotatable knife carrier in the removal position,

Figure 9

Cross section through a housing of the film dispenser according to FIG. 8,

Figure 10

Side view of a housing of the film dispenser,

Figure 11

Partial view of a film dispenser according to FIG. 10,

Figure 12

Cross section through a film dispenser with rotatable knife carrier in cutting position,

Figure 13

Partial view of the film dispenser from Figure 12 in section,

Figure 14

Cross section through a film dispenser with cutting system for transparent film,

Figure 15

Knife variant for cutting aluminum and paper foil according to FIG. 14,

Figure 16

14 is a sectional view of the film dispenser of FIG. 14,

Figure 17

Cross-section through a film dispenser with cutting system for aluminum and paper films,

Figure 18

a knife variant for very small rolls, corresponding to FIG. 17,

Figure 19

17 is a sectional view of the film dispenser of FIG. 17,

Figure 20

Cross section through a film dispenser with a cutting system only for transparent film,

Figure 21

20 is a sectional view of the film dispenser of FIG. 20,

Figure 22

Cross section through a film dispenser with additional tear-off edge,

Figure 23

Partial view of the film dispenser according to FIG. 22,

Figure 24

Cross section through a film dispenser with rotatable knife carrier and radial row of teeth,

Figure 25

24 with partial section,

Figure 26

Longitudinal section through a film dispenser with cone bodies adjustable on both sides,

Figure 27

Longitudinal section through a film dispenser with cone body adjustable on one side,

Figure 28

Longitudinal section through a film dispenser with a clickable cone body,

Figure 29

Top view of the film dispenser shown in FIG. 28,

Figure 30

a wall bracket with two film dispensers in front view,

Figure 31

a side view of a wall fastening according to Figure 30,

Figure 32

3 shows a side view of the opposite wall fastening according to FIG. 30,

Figure 33

Top view of a wall fastening according to FIG. 32,

Figure 34

a wall mounting variant with two film dispensers in front view,

Figure 35

a side view of the wall mounting according to Figure 33,

Figure 36 and 37

a suspension device for a film dispenser in two views,

Figure 38 and 39

an opened film dispenser in two views

Figure 40 and 41

a closed film dispenser in two views,

Figures 42 and 43

Arrangement of smooth and matt surfaces on the film dispenser housing,

Figure 44 and 45

2 shows a sectional illustration of the round housing of a film dispenser,

Figure 46 and 47

3 shows a sectional illustration of the housing of a film dispenser in two views,

Figure 48

4 shows a side view of the film dispenser of FIGS. 46 and 47, opened in section,

Figure 49

3 shows a side view of the film dispenser of FIGS. 46-48 in the closed state,

Figure 50 and 51

Representation of a round film dispenser housing with a clamping device for the film roll in two views,

Figures 52 and 53

Illustration of the opened film dispenser according to Figures 50 and 51,

Figures 54 and 55

Variation of a knife holder in two views,

Figure 56 and 57

a film dispenser with a side opening in the open state in two views,

Figure 58 and 59

Foil dispenser according to FIGS. 56 and 57 in the removal position,

Figure 60 and 61

two versions of an axial film holder in two views,

Figure 62 and 63

another version of the film dispenser in cutting position in two views,

Figure 64 and 65

the film dispenser according to FIGS. 62 and 63 in the removal position in two views,

Figures 66-69

Embodiments of a friction wheel on a film dispenser in different views and representations,

Figure 70

a cross section through a cutting device,

Figure 71

2 shows a sectional side view of the cutting device according to FIG. 70,

Figure 72

3 shows a cross section through a further embodiment of a separating device,

Figure 73

3 shows a sectional side view of the separating device according to FIG. 73,

Figure 74

a cutting slide with an inclined friction wheel.

Variations of the film dispenser are shown in FIGS. 1 to 37.

The housing 1, 11, 21 of the film dispenser is essentially cylindrical, its inner diameter is slightly larger than that of commercially available household film rolls and the film dispenser has a removal slot 5, 15, 25 for a film web 31, which extends at least up to a housing end or also over extends the entire length of the housing. Approx. A 90 ° to this removal slot 5, 15 25 is a knife groove, 6, 16, 26 attached to the outside of the housing, which cooperates with the cutting device of the knife holder, 2, 12, 22 to be explained in more detail.

Furthermore, the cylindrical housing 1, 11, 21 is provided with inwardly directed cone bodies 40, 41, 42, 43, on which a film roll 30 is mounted centrally with friction in the housing. In order to ensure this type of bearing, at least one cone body 40-43 must be axially adjustable.

This is achieved in FIG. 26 in the case of a conical body 42 via a cylindrical end piece which is provided with a thread 45 which interacts with an internal thread 44 of the housing 1. The thread 45 has a very high pitch, which ensures that the friction in the thread 44, 45 is greater than that of the film roll 30 on the conical surface of the cone body 42, so that a set bias of a film roll 30 is maintained. The threads 44, 45 are equipped with right-hand or left-hand threads in accordance with the direction of rotation of the film roll 30 or counter to the direction of rotation.

FIG. 27 shows a conical body 43 which is provided at its cylindrical end with a web 47 which is guided in the end slot 5 of the housing. The web 47 is made somewhat narrower than the dimension of the removal slot 5, so that the housing 1 for mounting a housing cover 51, which engages around the housing 1 and snaps into a radial groove 69, can be compressed slightly. In this cover 51, a threaded spindle 52 is rotatably fixed, on which the tapered body 43 provided with a through thread 50 is held adjustably.

A further version of the film centering is achieved in FIGS. 28 and 29 by means of the conical body 41, the cylindrical end piece of which is also provided with a web 46, which is guided in the end slot 5 of the housing 1, the web having notches 48, which are connected with the Starting area of the removal slot 5 arranged slot catches 49 cooperate, so that an adaptation of the centering of different lengths of film rolls 30 is also possible here.

A knife carrier 2, 12, 22 is clamped onto the housing 1, 11, 21 of FIGS. 1 to 37, the inside diameter of which corresponds to the outside diameter of the housing 1 and which surrounds it in a range of approximately 230 degrees. The separating device 33 is arranged in the region of an edge of the knife carrier 2, 12, 22. Lateral locking cams 7, 17 are also provided in this area, which correspond to detents 8, 18 arranged over the circumference of the housing in order to ensure defined positions of the knife carrier 2, 12, 22 relative to the housing 1, 11, 21. A catch 8 is located in the pull-out direction of the film web 31 in front of or behind the knife groove 6 (FIG. 6) and a further catch is provided through the removal slot 5 (FIG. 7).

In the edge areas of the cylindrical housing 1 in the area between the knife groove 6 and the removal slot 5, as is once again illustrated in FIG. 9, the housing 1 can be designed such that a cam 32 is generated by increasing and decreasing wall thickness, on which the locking cam 7 of the knife carrier 2 rests, so that when the housing 1 and the knife carrier 2 are rotated relative to one another, a larger slot is created than would be the case if only the locking cam 7 were guided along the housing surface 1.

The outer diameter of the housing 1 or the housing wall thickness is in the range between the removal slot 5 to just before the knife groove 6 over the length of the knife groove 6 to produce a Gap 3 reduced. This gap space 3 can also be created or enlarged in that the inside diameter of the knife carrier 2 is made enlarged in this area.

A possible sequence of film removal is shown in FIGS. 5 to 7.

In FIG. 5, the knife carrier 2 is in the cutting position with the film web 31 leading vertically downward. After the longitudinal movement of the cutting carriage 64 along its guide 63, an exactly separated film web 31 can be removed. In order to remove a piece of film 31 again, the knife carrier 2 is rotated counter to the direction of rotation of the film roll 30 into the removal position (FIG. 7), being raised so far from the film 31 that swings around the housing 1 that it remains in the original position ( Figure 6). Another possibility of being able to grasp the foil lug 31 again is not to rotate the knife carrier 2, but rather the housing 1 against the direction of rotation of the foil roller 30 until the knife carrier 2 engages in the desired position in the region of the removal slot 5. The film web 31 can then be pulled out in any length, after which the knife carrier 2 is rotated around the housing 1 or the housing 1 in the knife carrier 2 such that the separating device 33 engages over the knife groove 6.

Since removal slot 5 and knife groove 6 are arranged approximately 90 degrees to one another, a rotation of approximately 90 degrees is also required to rotate the knife carrier 2 relative to the housing 1, whereas a rotation of approximately 90 degrees is required when the housing 1 is rotated within the knife carrier 2. 270 degrees is required.

To improve handling of the film dispenser and also to protect it from rolling away, the housing 1, as shown in FIGS. 10 and 11, can be provided with an edge 19, 20 which projects beyond the knife carrier 2. The possible wall or table holders for the film dispenser are also designed in accordance with these options.

Figures 30 to 33 show a version of a wall bracket 80, 81, in which the housing 1 is fixed over the bracket 80, 81 and the knife holder 2 can be rotated back and forth like a visor.

FIGS. 34 and 35 show an embodiment in which the knife carrier 2 is fixed in relation to the wall bracket 82 is and the housing 1 can be rotated relative to the knife carrier 2.

The wall brackets 80, 81, 82 of Figures 30 to 35 are designed so that the film dispenser can be easily removed from the respective bracket, but also remains functional on the wall.

Another version of the wall fastening, which also applies to other embodiments of the film dispenser, is the embodiment according to FIGS. 36 to 37, which is provided with a kind of hook or bracket 84 in order to hang it on a rod 59 or a hook.

The housing 11 of the film dispenser according to FIG. 2 has, as a further embodiment, a knife carrier 12 which spans it in a range of approximately 100 degrees and which is hinged in the region of the removal slot 15 via a joint 83 on the housing 11 such that the knife carrier 12 can be folded away about 45 degrees from the housing 11. In the folded state, the film web 31 runs through the removal slot 15 between the housing 11 and the knife carrier 12. The gap space 13 between the housing 11 and the knife carrier 12 can be very narrow in this version or can be completely eliminated since there is no relative movement between the housing 11 and the knife carrier 12 takes place and applying the film 31 to the housing 11 or to the inside of the knife carrier 12 can be advantageous for the function of the film dispenser. The knife carrier 12 has two latching cams 17 on its front edge, which engage in catches 18 of the housing 1 and prevent the knife carrier 12 from unintentionally opening. This dispenser version can also be used in wall or table brackets, although only one version with a fixed housing 11 appears to be useful.

An embodiment of the object of the invention shown in Figures 3 and 4 also has a cylindrical housing 21 and each have a removal slot 25 and a knife groove 26, but the knife carrier 22 is pivotally mounted eccentrically on the end faces of the housing 21. The knife carrier 22 extends, as in the previous embodiment, over approximately 100 degrees and in the removal position clears the area between the removal slot 25 and the knife groove 26, with its rear edge finding an end stop in the notch 9. In order to cut the film web 31 to length from the film roll 30, the knife carrier 22 is pivoted over the area between the removal slot 25 and the knife groove 26 until it reaches with it front edge meets a stop cam 10 and the film web is held between the housing 21 and knife carrier 22. The gap space 23 covering the film lug 4 also protects the film lug 4 from further external influences after being cut to length.

The separating device 33 of the knife carriers 2, 12, 22 of the different embodiments of the film dispenser in FIGS. 1 to 4 basically consist of a guide 60 to 63 for a cutting carriage 64 to 67, in which a cutting device 33 cooperating with the housing 1, 11, 21 is housed. The cutting device 33 can be equipped for cutting the different types of foils either with knife types which are partially matched thereto or, according to the invention, with a universal separating device 33.

FIGS. 20 and 21 show a cutting device 33 for cutting transparent films from a fixed knife 70 that extends into the cutting grooves 16 of the housing 1, 11, 21 and is held in the cutting carriage 67.

FIGS. 14 and 16 show a cutting device 33 which is also provided only for cutting transparent film and also has a fixed knife 70 which is held in the guide carriage 65, which can be moved along the knife groove 16 on the guide 61, the carriage 65 is also equipped with a holding roller 71, which is arranged behind the knife 70 in the pull-out direction of the film 31 and rolls on the housing 1, 11, 21 next to or, slightly protruding from the edge of the groove 16.

FIG. 15 shows a cutting roller 68 which is interchangeable for the arrangement of knife 70 and holding roller 71 in FIG. 14 and consists of a cylindrical roller which has a bevel gear-shaped shoulder which extends into the knife groove 16 in the installed state, whereby this cutting device 33 is used when cutting aluminum or paper foil.

A further cutting device 33 for separating aluminum and paper foils 31 is shown in FIGS. 17 to 19, wherein the cutting device 33 consists of two bevel gears 72, 73, which have a larger diameter opposite one another, and parts of the cone surfaces roll on chamfers 74 of the knife groove 6 . The slide 66 is again held displaceably by a corresponding guide 62 on the knife carrier 2, 12, 22.

FIG. 18 shows a very small variant of this cutting device 33, the conical surfaces 72, 73 of which are structured, which interact with also structured bevels 74 of the knife groove 16 and thus ensure that the cutting wheel rolls off.

FIGS. 22 and 23 show an additional possibility for cutting a film web 31 to length, with which the front edge 75 of the knife carrier 2, 12, 22 can be equipped. In this case, sharp teeth 76 are introduced on several sides, in any case a tooth flank 77 of a tooth 76 is shaped in such a way that it abuts the housing 1, 11, 21 or the film. The film 31 is held between the housing 1, 11, 21 and the knife carrier 2, 12, 22 during the tearing off and at the same time a risk of injury by the teeth 76 is minimized.

An additional embodiment of the tear-off edge 75 of the knife carrier 2, 12, 22 is shown in FIGS. 24 and 25, in which the teeth 76 extend radially to the housing 1, 11, 21 of the film dispenser, the latter being in a disconnected position on a rubber strand inserted into the housing groove 78 79 support.

FIGS. 38 to 73 show further embodiments of the subject matter of the invention in different variations.

FIGS. 38 to 53 are a hinged dispenser, which essentially consists of two components, a bowl-shaped upper part 101a, 110a, 120a, and a similar bowl-shaped lower part 101b, 110b, 120b, both parts being connected to one another by a hinge 109 are connected.

The knife carrier 102, 112, 122 here consists of a shell in the form of a cylindrical cutout of approximately 90 degrees, which has an inner radius which approximately corresponds to the outer radius of the associated housing part and the disks 105, 125 arranged perpendicularly at its corners. has, which, in the front openings of the housing 101, 110, 120, engagingly engage the knife carrier 102, 112, 122, pivotably. The pivoting angle of the knife carrier 102, 112, 122 can be set up as desired by means of recesses, cams, etc. In order to guarantee that a separating device 108 runs freely when pivoting in this way, the housing 101, 110, 120, in accordance with the pivoting angle, a radial groove 106, 116, 126 is provided in the regions of the two end stops of the separating device.

In the shell-shaped upper part 101a, 110a, annular disks 105, 125 are attached in the region of the end faces. in the shell-shaped lower part 101b, 110b are provided on the front sides of hollow cylinders 115. After a film roll (not shown) has been inserted and the housing parts 101, 110, 120 have been closed, the panes of the upper part 101a, 110a, 120a rest on the inner end faces of the hollow cylinders 115. The disks of the knife carrier 101, 112, 122, those of the upper part 101a, 110a, 120a and the hollow cylinder 115 have a bore into which a stopper 114 can be inserted axially into the film roll (not shown). The plug 114 thus fulfills the role of the roller bearing on the one hand and on the other hand ensures the secure closure of the housing 101, 110, 120.

In FIG. 42, as also in FIG. 58, smooth surface sections 150, 151 and matt surface sections 152, 153, 154 are shown alternately. The differently designed surfaces 150 to 154 serve the function and handling of the film dispenser. Some films 104, for example a transparent film, adhere to the smooth surfaces 150, 151 much better than on the matt surfaces 152 to 154, which can be used as required. The inside of the housing and the components moving over the gap 103, 113, 123 are accordingly provided with matt, non-stick surfaces 152 to 154.

FIGS. 46 to 49 show a basically identical film dispenser, the housing parts 110a, 110b of which are only partially cylindrical and partially rectangular. Other housing contours, for example with radii and straight portions, are also conceivable here.

FIGS. 50 to 53 show a dispenser variant, in the shell-shaped upper part 151a of which a pot-like disk 119 is provided in the area of the end faces, which cooperates with a tumbler spring 121 provided in the bowl-shaped lower part 120b, when in the closed state the Notch 124 engages behind part of the disc edge of disc 119. The locking spring 121 additionally has an unlocking tab 128, through which a lateral housing opening 129 extends and which can be operated from the outside to open the housing 120.

In Figures 50 to 53 and also in Figures 56 to 61, a variation of the film roll storage is shown. The cup-shaped disk 119 is partially designed as a spring tab 136. An approximately cuboid block 131 is attached to the inwardly directed disk of the spring tab 136, which block has a rounded end face 134 in a inserted, not shown film roll engages and presses axially against an edge of this end face facing inward against the edge of the film roll, not shown, and thus clamps it. The rolling resistance of the film 104 can be predetermined by the angular position of the block 131 relative to the removal slot 135.

Also shown in FIGS. 56 to 59 is a film dispenser variant, the housing 140 of which consists of two partial cylinders 140a, 140b, of which the outer 140a partially encloses the inner 140b and both can be rotated relative to one another in such a way that a lateral longitudinal opening 149 for inserting a not shown Film roll can be generated. The separating device 108 is here accommodated directly on the outer housing part 140a, so that an extra knife carrier 102 can be dispensed with. The outer housing part 140a is displaced along a radial groove 146.

This is also the case with the variant which is shown in FIGS. 62 to 65. In this case, the knife carrier 132 is directly molded onto the upper housing part 130a and the separating device 108 is held displaceably between a section of the housing surface and a guide 137 of the knife carrier 132. The axis of rotation 138 of the cutting wheels of the separating device 108 runs approximately radially to the central axis 139 of the housing or approximately parallel to the vertical or horizontal division plane 155, 156 of the housing.

A conceivable lateral closure of the dispenser housing 130 is shown on the left in FIG. 62, which can be achieved by the deformation of an elastic ring 133.

66 to 69 finally show a variation of the separating device 108, in which a frustoconical friction wheel 148, 158 is provided on the axis of rotation 138 of the cutting wheels, this being arranged such that it lies behind the knife 165 in the pull-out direction of the film and with its larger diameter is also installed in the pull-out direction, this larger diameter being greater than the distance between the axis of rotation 138 and the surface of the housing 1, so that the conical friction wheel 148, 158 must deform in order to roll on the surface of the housing 1 to be able to. A film to be cut is advantageously held down and stretched before the separating device 108 is used.

FIGS. 66 to 69 and 70, 71, 72 to 74 show the separating device 108 which can be used universally for all types of film.

66 to 69, the universally usable cutting device 108 consists of a cutting carriage 64 with a knife 165 and at least one rotatable cutting wheel, in particular a bevel gear-shaped cutting wheel 175 and / or a further cutting wheel 176, which with its large end face is directly adjacent and the knife 165 is arranged so that different separation mechanisms can be generated during the separation process according to the type of film.

Furthermore, as in FIG. 70, two oppositely arranged, rotating cutting wheels 72, 73 can also be arranged in the cutting carriage 64 on both sides of the knife 70, the two large end faces of the conical cutting wheels 72, 73 facing the knife 70 and the body edge of a cutting wheel 73, which is formed by the large end face and the conical surface, is rounded, whereas the corresponding body edge of the other cutting wheel 72 is sharp-edged. The knife edge 94 of the separating device 108 is V-shaped and sharp on both sides. Its tip 93 extends beyond the diameter of the cutting wheel 72 into the knife groove 6, the cutting edges 93 receding in the region of the chamfers 74 of the knife groove 6 behind the contour of the cutting wheels 72, 73. The cutting wheels 72, 73 can be designed on their contact surfaces with the knife groove 6 as well as the active surfaces of the knife groove 6, the chamfers 74 so that a cutting wheel 72, 73 rolls frictionally and / or positively on the active surfaces 74, the outer part of the conical surface can still extend into the knife groove 6.

As can be seen from FIG. 67 or also from FIG. 74, a friction wheel 96 can be integrated in the cutting carriage 64, which is either frustoconical in cross-section and behind the knife 70 or the cutting wheel 175 or 72, 73 in the pull-out direction of the film 31 , in particular is arranged on the shaft 92, a larger diameter pointing in the direction of extension and this diameter is larger than the distance between the friction wheel axis of rotation 91 and the housing surface 1 or which is set obliquely to the housing surface 1 of the film dispenser, so that the film 31 during of the cutting process is additionally clamped in the cutting area.

In Figures 70, 71, 72, 73 it is clear how the cutting carriage 64 is displaceably arranged on the knife carrier 2, namely in the guide 60, which is from the side Shoulders 90 of the cutting carriage 64 can be gripped. The cutting wheels 72, 73 are pressed into the knife groove 6 by elastic forces of the knife carrier 2, but also by the actuating forces. A film web 31 is passed through the removal slot 5 and housing 1 and knife carrier 2, not shown, and held by it and held in place during the cutting process by the bevel gears 72, 73 between these and the chamfers 74 of the knife groove 6.

The separating mechanism in the case of thin transparent film 31 is approximately that that a bevel gear 72 or both bevel gears 72, 73, by pressing the film 31 into the knife groove 6, clamp the latter so that that which emerges in the lower region over the radius of the cutting wheel 72 Knife 70 cuts the transparent film 31.

The cutting of aluminum or paper foils 31 is carried out by a similar mechanism, only that the foil 31 is separated at the sharp edge of the cutting wheel 72 at the latest during tightening while the foil material is less stretchable.

Both separation mechanisms can be involved in the separation process alone or in any part. Because the optimal separation mechanism is used for each type of film inserted in the film dispenser, the separation device 108 is extremely wear-free. The complete film dispenser with separating device 108 is therefore extremely robust due to its simple structure and extremely handy and user-friendly due to its practical orientation.

Reference list

1

Housing film dispenser

2nd

Knife holder

3rd

Gap

4th

Foil flag

5

Withdrawal slot

6

Knife groove

7

Lateral locking cam

8th

Detent on the separator

9

Notch in the case

10th

Stop cam

11

Housing film dispenser

12th

Knife holder

13

Gap

16

Knife groove

17th

Lateral locking cam

18th

Detent on the separator

19th

Case edge

20th

Case edge

21

Housing film dispenser

22

Knife holder

23

Gap

25th

Withdrawal slot

26

Knife groove

30th

Foil roll

31

Foil web

32

cam

33

Separator

40

Cone body

41

Cone body

42

Cone body

43

Cone body

44

Internal thread housing, suitable for part 45

45

Thread for cone body adjustment on cylindrical Tail

46

Bridge on cone body 41

47

Bridge on cone body 43

48

Locking the web 46

49

Slot catches suitable for 48

50

Through thread of 52

51

Housing cover

52

Threaded spindle

59

pole

60

Guiding cutting carriage

61

Guiding cutting carriage

62

Guiding cutting carriage

63

Guiding cutting carriage

64

Cutting slide

65

Cutting slide

66

Cutting slide

67

Cutting slide

68

Cutting roller

69

Radial groove

70

Fixed knife

71

Holding roll

72

Bevel cutting wheels

73

Bevel cutting wheels

73a

Cylindrical cutting wheel

74

Knife groove fibers 6

75

Front edge of the knife holder

76

Teeth on edge 75

77

Tooth flank of 76

78

Housing groove

79

Rubber strand

80

Wall bracket

81

Wall bracket

82

Wall bracket

83

Articulated knife holder 12

84

Bracket / hook

90

Lateral shoulders

91

Friction wheel rotation axis

92

Shaft of cutting wheels

93

Tip of the knife edge

94

Knife edge

95

Withdrawal slot

96

Friction wheel

101

casing

101a

Cup-shaped top

101b

Bowl-shaped lower part

102

Knife holder

103

Gap

104

foil

105

End plate

106

Radial groove

107

disc

108

Separator

109

hinge

110

casing

110a

Cup-shaped top

110b

Bowl-shaped lower part

112

Knife holder

113

Gap

114

Plug

115

Hollow cylinder

116

Radial groove

117

disc

118

Rested

119

Pot-like slice

120

casing

120a

Cup-shaped top

120b

Bowl-shaped lower part

121

Locking spring

122

Knife holder

123

Gap

124

Rested

125

End plate

126

Radial groove

127

Clamping device

128

Release tab

129

Lateral housing opening

130

casing

130a

Upper part of the housing

130b

Lower part of the housing

131

Cuboid block

132

Knife holder

133

Elastic ring

134

Rounded face

135

Withdrawal slot

136

Spring tab

137

Guidance knife holder

138

Rotary axis separator

139

Housing axis

140

casing

140a

Cylindrical housing part

140b

Cylindrical housing part

142

Knife holder

143

Gap

146

Radial groove

147

Gap

148

Friction wheel

149

Longitudinal opening on the side

150

Smooth surface sections

151

Smooth surface sections

152

Matt surface sections

153

Matt surface sections

154

Matt surface sections

155

Vertical division level housing

156

Horizontal division level housing

157

Film hinge

158

Friction wheel

165

knife

175

Cutting wheel

176

Cutting wheel

Claims (19)

1. A foil dispenser, in particular for domestic foils such as aluminium, paper and transparent foils or the like, comprising a housing for accommodating a roll of foil and a blade carrier having a cutting carriage co-operating with a blade groove provided in the housing characterised in that the housing (1, 11, 21, 101, 110, 120, 130, 140) has a removal slot (5, 15, 25) arranged parallel to the axis of the roll of foil and the blade groove (6, 16, 26) at a relatively large angular spacing relative to the removal slot, the blade carrier (2, 12, 22, 102, 112, 122, 132, 142) is adapted to the contour of the housing (1, 11, 21, 101, 110, 120, 130, 140) over a substantial part of the housing (1, 11, 21, 101, 110, 120, 130, 140) and in the cutting position forms between the removal slot (5, 15, 25) and the blade groove (6, 16, 26) a gap (3, 13, 23, 103, 113, 123, 133) for receiving a foil web portion (4, 31), in which gap the foil web portion (4, 31) which projects out of the removal slot (5, 15, 25) is covered completely, that is to say on both sides, over the region between the removal slot (5, 15, 25) and the blade groove (6, 16, 26), and that the blade carrier (2, 12, 22, 102, 112, 122, 132, 142) is movable out of the cutting position for gripping the foil web portion (4, 31).
2. A foil dispenser according to claim 1 characterised in that the angular spacing between the removal slot (5, 15, 25) and the blade groove (6, 16, 26) is 90°.
3. A foil dispenser according to claim 1 characterised in that the blade carrier (2, 12, 22, 102, 112, 122, 132, 142) is clamped on to the housing (1, 11, 21, 101, 110, 120, 130, 140) and the inside diameter of the blade carrier (2, 12, 22, 102, 112, 122, 132, 142) encloses the housing (1, 11, 21, 101, 110, 120, 130, 140) in a region of 230°.
4. A foil dispenser according to claim 1 characterised in that after a foil portion has been cut off a short grippable foil web portion (4, 31) is available for freshly gripping and pulling out a further foil portion.
5. A foil dispenser according to one of claims 1 to 3 characterised in that the blade carrier (2, 12, 22, 102, 112, 122, 132, 142) and the housing (1, 11, 21, 101, 110, 120, 130, 140, 160) have retaining bans (7, 17, 8, 18) which correspond to each other at least in the cutting position or also in the removal position of the blade carrier (2, 12, 22, 102, 112, 122, 132, 142).
6. A foil dispenser according to one of claims 1 and 3 characterised in that the blade carrier (2, 12, 22) can be lifted away from the housing (1, 11, 21) at least in the region of the cutting carriage (64, 65, 66, 67) in positions which are different from the cutting position or that the housing (101, 110, 120, 130, 140, 160), in the region of at least one end position of the cutting carriage (168, 188) in the direction of movement of the blade carrier (102, 112, 122, 132, 142), has at least one radial recess (106, 116, 126, 146) which is slightly deeper than the cutting means (165) of the severing device (108).
7. A foil dispenser according to one or more of the preceding claims characterised in that for cutting off a foil web portion (4, 31), in addition to the severing device (108), the blade carrier (2, 12, 22, 102, 112, 122, 132, 142) has a suitably shaped tear-off edge (75), in particular with teeth (76) which are arranged tangentially in the pull-out direction of the foil (4, 31) or directed inwardly perpendicularly thereto.
8. A foil dispenser according to one or more of the preceding claims characterised in that it is easily removable with its housing (1, 11, 21) or at its blade carrier (2, 12, 22) from a table or wall holder (80, 81, 82) and can be easily operatively fitted therein.
9. A foil dispenser according to one or more of the preceding claims characterised in that the housing (101, 110, 120) comprises two shell parts which are connected by a hinge (109), an upper portion (101a, 110a, 120a) and a lower portion ( 101b, 110b, 120b), which form a cylindrical housing (101, 110, 120), that the upper portion (101a, 110a, 120a) has annular discs (107, 117, 187) in the region of its ends and the shell-like lower portion (101b, 110b, 120b) has at both ends plug members (114) which can be inserted axially through the hollow cylinder (115) and the discs (107, 117) into the roll of foil (30) and which hold the housing (101, 110, 120) closed and the foil (4, 31) centered.
10. A foil dispenser according to one or more of the preceding claims characterised in that a roll of foil (30) can be fitted into the foil dispenser either laterally axially or radially through housing portions (101, 110, 121) which can be pivoted open by way of a hinge (109) or through a longitudinal opening (49) which can be produced by turning the housing portions (101, 110, 121) relative to each other.
11. A foil dispenser according to one or more of the preceding claims characterised in that the shell-like upper portion (120a) has in the region of each of its ends a respective cup-like disc (119) which is opened towards same and that the shell-like lower portion (120b) has a closure spring (121) which is provided with a retaining means (124) and a release tongue (128) which extends through a lateral opening (129) in the housing and that in the closed condition a part of the edge of the disc (119) is formed as a spring tongue (130), on the inside of which is disposed a substantially parallelepipedic block (131) which engages with a rounded-off end (134) into an inserted roll of foil (30) and which with an inwardly directed surface that is remote from said end presses axially against the edge of a roll of foil (30) and clamps same in position.
12. A foil dispenser according to claim 1 characterised in that the blade carrier (132) is formed on the upper portion (130a) of the housing and the severing device (108) is held displaceably between a part of the housing surface (130) and a guide (137) for the blade carrier (132).
13. A foil dispenser according to one or more of the preceding claims characterised in that the outsides of the housing are alternately provided with smooth surface parts (150, 151) and met surface parts (152, 153, 154) and that the insides of the housing and the components which are moved beyond the gap (103, 113, 123, 133, 143, 173) are provided with mat, non-adhesive surfaces.
14. A foil dispenser according to one or more of the preceding claims characterised in that it can be universally employed for all kinds of foil which occur and comprises a cutting carriage (64) with a blade (70) tiltable about an axis and at least one rotatable cutting wheel (72), in particular a bevel wheel-shaped cutting wheel (72), which is arranged with its large face directly adjacent and towards the blade (70) in such a way that in the severing operation different severing mechanisms can be produced according to the kind of foil.
15. A foil dispenser according to one or more of the preceding claims characterised in that the cutting carriage (64) has two mutually oppositely disposed rotatable cutting wheels (72, 73) and a blade (70) which is arranged therebetween and which is tiltable about an axis, wherein the two large faces of the bevel wheels face towards the blade (70) and the body edge of a cutting wheel (73), which edge is formed by the large face and the bevel face, is rounded off, whereas the corresponding body edge of the other cutting wheel (72) is of a sharp-edged configuration.
16. A foil dispenser according to one or more of the preceding claims characterised in that the blade cutting edge (94) of the severing device is V-shaped and sharp on both sides, its tip (93) extends beyond the diameter of the cutting wheel (72) into the blade groove (6) and the cutting edges (94), in the region of bevels (74) of the blade groove (6), lies back behind the contour of the cutting wheel (72) or the cutting wheels (72, 73) as a result of the tiltability.
17. A foil dispenser according to one or more of the preceding claims characterised in that a cutting wheel (72, 73) of the severing device (108) is so designed at its contact surfaces with a blade groove (6) and/or the bevels (74) of the blade groove (6) are so designed that a part of the bevel surface of a cutting wheel (72, 73) rolls in frictional engagement and/or positively locking engagement on the bevels (74) and an outer part of the bevel surface extends into the blade groove (6).
18. A foil dispenser according to one or more of the preceding claims characterised in that integrated in the cutting carriage (64) is a friction wheel (148, 158) which is either frustoconical in cross-section and is arranged in the pull-out direction of the foil (31) downstream of the blade (70) or the cutting wheel (72), in particular also on its shaft (92), its larger diameter pointing in the pull-out direction of the foil (31) and said diameter being larger than the distance between the friction wheel axis (91) and the housing surface (1, 11, 21), or that it is disposed inclinedly relative to the surface of the foil dispenser so that the foil (21) can be additionally tensioned during the cutting operation in the cutting region.
19. A foil dispenser according to one or more of the preceding claims characterised in that it can be universally employed for any desired kind of foil as a hand, wall or table appliance.

Images