EP0903312B1 - Adhesive tape dispenser and use thereof - Google Patents

Description

The invention relates to an adhesive tape dispenser with a knife Cutting device and its use for the injury-free cutting of Tapes.

State of the art

• Dispenser von zumeist sehr kompakter Gestalt (nachfolgend auch als Kompaktdispenser bezeichnet), bestehend aus einem offenen oder geschlossenen Gehäuse, welches in seitlicher Ansicht zum Beispiel rund, trapezförmig, rechteckig oder polygonisch geformt sein kann. Die Klebebandrolle wird zur Nutzung auf einen zumeist zylinderförmigen Kernaufnehmer aufgebracht, der etwa mittig im Gehäuse integriert ist. Seitlich enthält der Dispenser einen schlitzartigen Austrittsspalt aus dem das Klebeband zum Ablängen herausgezogen wird. Üblicherweise befindet sich auf der einen Seite des Austrittsschlitzes das Schneidmesser über das ein Klebebandstück gewünschter Länge abgeschnitten werden kann. Die dem Schneidmesser gegenüberliegende Seite des Austrittsschlitzes ist zumeist als Aufnahmefläche für die haftklebrige Klebebandseite gedacht.
• Dispenser bei denen das die Klebebandrolle aufnehmende, offen oder auch geschlossen ausgeführte Gehäuse von den Elementen Klebefilmauflage und Schneidmesser räumlich getrennt ist. Entsprechende Dispenser finden als Hand- und als Tischdispenser breite Anwendung. Sie bieten bei verringerter Kompaktheit den Vorteil, daß Klebeband schnell und einfach entnommen werden kann sowie oft eine Einhandbedienung möglich ist. Eine beispielhafte Ausführungsform eines entsprechenden Dispensers beschreibt US 4,059,210.
• Dispenser, bei welchen das benötigte Klebeband über zum Beispiel eine Führungsrolle, die gleichzeitig als Andruckrolle fungiert, direkt auf das Substrat übertragen werden kann (nachfolgend auch als Transferdispenser bezeichnet). Zum Abschneiden befindet sich der Andruckrolle vorgelagert ein Schneidmesser oder eine vergleichbare Einrichtung, mittels welchem das Klebeband durch zum Beispiel eine leichte Drehbewegung des Dispensers abgeschnitten werden kann. Eine beispielhafte Ausführungsform eines entsprechenden Dispenser beschreibt WO 96/06790.

Dispensers for adhesive tape rolls, also called dispensers, serve the user as a storage container for the adhesive tape rolls themselves and as an application aid for their processing. The primary task of an adhesive tape dispenser is the simple, easy and clean cutting and cutting of adhesive tape strips in the length required for the intended application. Typical embodiments of dispensers include, as basic elements, a supporting housing, a roll core receptacle, an adhesive tape pad and a cutting or tearing device. The following can be distinguished as essential embodiments:

• Dispensers of mostly very compact shape (hereinafter also referred to as compact dispensers), consisting of an open or closed housing, which can be round, trapezoidal, rectangular or polygonal in side view, for example. The roll of adhesive tape is applied to a mostly cylindrical core receiver, which is integrated approximately in the center of the housing. On the side, the dispenser contains a slot-like exit gap from which the adhesive tape is pulled out to cut it to length. Usually, the cutting knife is located on one side of the outlet slot, via which a piece of adhesive tape of the desired length can be cut off. The side of the outlet slot opposite the cutting knife is mostly intended as a receiving surface for the adhesive side of the adhesive tape.
• Dispensers in which the open or closed housing holding the roll of adhesive tape is spatially separated from the elements of adhesive film support and cutting knife. Appropriate dispensers are widely used as handheld and table dispensers. With reduced compactness, they offer the advantage that adhesive tape can be removed quickly and easily, and often one-handed operation is possible. An exemplary embodiment of a corresponding dispenser is described in US 4,059,210.
• Dispensers in which the required adhesive tape can be transferred directly to the substrate via, for example, a guide roller, which also functions as a pressure roller (hereinafter also referred to as a transfer dispenser). For cutting, the pressure roller is preceded by a cutting knife or a comparable device by means of which the adhesive tape can be cut off, for example by a slight rotary movement of the dispenser. WO 96/06790 describes an exemplary embodiment of a corresponding dispenser.

To cut a section of adhesive tape of the desired length, a corresponding one is used Unrolled piece of adhesive tape and cut off with the cutting knife. shape and materials of suitable cutting knives vary. Find the most common use Knife with a serrated cutting edge (knife edge). The tooth edge can injection molded dispensers are produced in the injection molding process (see e.g. tesa film dispenser 55975-87). Furthermore, the integration of a metal is common Cutting knife in the dispenser. Metal knives offer compared to plastic tooth edges i. a. the advantage of a higher mechanical strength and a higher sharpness, are therefore more durable and with regard to the material that can be cut (e.g. with regard to film thickness, typus) more flexible in use. To prevent injuries from accidentally touching the knife edge, z. B. with your fingers, numerous suggestions are made Service. This is how FR 2 710 331 describes "Dérouler de ruban adhesif", US 5,022,576 "Lever operated protective cover for a saw tooth-shaped cutter", US 5,393,367 "tape dispenser with a protected cutting device "and US 5,456,790" tape dispenser with a blade protector "differently shaped manually or by means of an automatism movable protective covers for the cutting knife, which damage the Exclude the user by the knife as much as possible and at the same time as protection before damaging the knife. Examples of tape dispensers, in which the cutting knife is only available when using the dispenser in JP 08012171 "Tape cutter", WO 95/23108 "Dispenser for adhesive tape and the like" and No. 5,456,790 "Tape dispenser with a blade protector".

A disadvantage of dispensers with toothed cutting knives is that in particular self-adhesive films, which carrier materials with low tear resistance and low ductility use, cannot be detached tear-free from many reasons for detention. This applies in particular to adhesive films, which are highly stretched biaxially oriented films use it-PP homopolymers as carriers, but also for highly stretched ones Films based on other highly crystalline polyolefins and biaxially stretched PETP, to name a few. When using a dispenser knife with toothed Cutting edge becomes the tooth structure on the when cutting an adhesive film strip Cut edge of the cut tape shown. Through the serrated knife edge as well as any sharp burrs or damage present in the knife very fine tears in the cut edges of the adhesive film strips obtained are very common generated. As a result of the tooth structure shown and the finest tears mentioned in the cut edges of the adhesive film strips the attempt of the Adhesive tape user a glued adhesive film strip in one piece from the bonding surface wiederabzulösen. Rather, adhesive films often tear when trying to remove them again starting from the existing cut edges. For complete detachment single adhesive film strip is often a lengthy unwinding of the following necessary from the detention ground. Adhesive film residues that are difficult to remove, adhesive residues on the bonding surface and damage to sensitive surfaces are as Episode not excluded.

By using sharp, smooth-edged cutting knives, tear-free detachment is possible aforementioned self-adhesive films possible, since in this case no damage to the Cut edges in the form of tears and the cut edge through the smooth Knife shape is straight. For many applications there is a smooth cut edge of the adhesive film also desired for aesthetic reasons or for technical reasons advantageous or necessary, the latter, for example, if the adhesive strip on a photocopy should be used and no or only minimal shadow formation the condition of the copies. DE 29616409 describes an adhesive film dispenser which interchangeable commercial razor blades uses, which causes copying errors and dirt the cutting knife edge does not occur. The tesa table dispenser 6082 uses smooth knives which have an absolutely straight cut edge of the portion to be portioned Enable adhesive tape. Adhesive film strips cut to length with the tesa table dispenser 6082, who use a biaxially oriented PP carrier, e.g. B. tesa multi-film or tesa Practic-Film, can be removed without tearing in almost all cases. injury especially the fingers when using the aforementioned dispensers not be ruled out. US 4,175,685 describes an adhesive tape dispenser which uses a cutting unit containing razor blades. To protect against injury a flexible thread-like material spirally wrapped around the knife. Between the razor blade edge is accessible to individual spiral turns. A cross cutting smooth knife integrated in a knife bar is in the tesa industrial table dispenser 6080 used. Due to the special arrangement and orientation of the Cutting knife below the knife bar is a risk of injury to the user largely excluded. The diagonally to the plane of the tape to be cut Running knife edge also allows the adhesive tape to be cut easily. The tesa automat 6056 also uses an one that runs diagonally to the adhesive tape Knife, which is controlled electromagnetically. A risk of injury to the Users with the cutting knife are also largely excluded.

DE 1 083 153 and US 3 635 473 disclose an adhesive tape dispenser according to the preamble of claim 1.

A disadvantage of the aforementioned tape dispensers with smooth, straight knife edges high sharpness is the increased risk of injury to the cutting edges when there is no protective cover and that for processing the adhesive film by manually removing or moving a knife protection cover Operations are necessary. In the case of the above through automation in the processing process Approved cutting knife is an often complex mechanical structure of the adhesive tape dispenser, the manufacturing costs and size of the devices increased and can also reduce the functionality.

• die den Einsatz von Schneidmessern zulassen, welche mit dem abzuschneidenden Klebeband leicht zugänglich sind,
• bei welchen der Einsatz extrem scharfer Schneidmesser möglich ist, ohne daß eine signifikante Verletzungsgefahr für den Nutzer besteht und ohne daß aufwendige zusätzliche Maßnahmen zum Schutz des Verwenders integriert werden müssen, wie z. B. Messerabdeckungen oder komplexe mechanische Aufbauten, welche das Messer erst zum Zeitpunkt seiner Nutzung aktivieren.
• welche eine glatte Schnittkante im Klebefilm erzeugen, so daß ein einreißfreies Wiederablösen applizierter Klebefilme (insbesondere von Klebefilmen mit Trägerfolie auf Basis von biaxial orientiertem Polypropylen) möglich ist.
• welche ein extrem leichtes Abschneiden von Klebefilmen insbesondere mit biaxial verstreckten Folienträgern erlauben.
• bei denen die Schneidmesser weitestgehend geschützt sind vor mechanischer Beschädigung.
• welche kostengünstig in der Realisierung sind.

The object of the invention was to remedy this, in particular to provide adhesive tape dispensers with cutting devices,

• which allow the use of cutting knives which are easily accessible with the adhesive tape to be cut,
• in which the use of extremely sharp cutting knives is possible without there being a significant risk of injury to the user and without the need for costly additional measures to protect the user, such as e.g. B. knife covers or complex mechanical structures, which activate the knife only at the time of its use.
• which produce a smooth cut edge in the adhesive film, so that tear-free redetachment of applied adhesive films (in particular adhesive films with carrier film based on biaxially oriented polypropylene) is possible.
• which allow extremely easy cutting of adhesive films, especially with biaxially stretched film carriers.
• where the cutting knives are largely protected against mechanical damage.
• which are inexpensive to implement.

This task is solved by an adhesive tape dispenser, which has a cutting device included, as is characterized in the claims.

detailed description

Fig. 1 shows a cutting device (1) according to the invention consisting of a Film support surface (2) on its front side (side on which a piece of tape cut to length a cutting knife (4) is integrated on both sides. The knife surfaces run approximately parallel to the front of the cutting device, the knife blades are inclined at an angle between approximately 85 ° and 2 °, preferably 70 ° and 5 °, particularly preferably between 50 ° and 5 ° to the film contact surface (2). These angles apply, like other general information, regardless of the Embodiment according to Fig. 1. On the side of the film support surface (2) are Web (3), which together with the base of the cutting device (5) Can accommodate cutting knife. The web height advantageously corresponds at least to that Height of the cutting knife on the inside of the webs (3i). The front edge (2a) of the Film contact surface is advantageously carried out such that the incisions when cutting into the piece of tape to be cut with the cutting knives (4) be introduced, directed in such a way that a single smooth and approximate straight cutting edge is generated, i.e. Knife cutting and leading edge lie in a line. For adhesive films based on biaxially stretched polypropylene carriers a straight edge (2a) of the film contact surface with radii of curvature of <approx. 1 mm preferred proven. The knife (4) can be in the form of two separate units, or also be formed from one part according to Fig. 2. As an alternative to Positioning at the front of the cutter can cut the knife are also integrated in the same. Beneficial for producing a smooth The cut edge here is that the connecting line between the two knife edges is in the form of an edge forwarding the incisions in the film.

In order to ensure adequate fixation of the adhesive film during the cutting process, the film contact surface is preferably designed such that the adhesive film when Cut the entire surface with the sticky side resting on it.

By means of the cutting devices shown in Fig. 1 and Fig. 2, Self-adhesive films with e.g. B. biaxially oriented polypropylene carrier, with biaxially stretched Polyethylene terephthalate carrier, with cellulose acetate carrier or with cellophane carrier, um just to name a few, excellent cutting. A smooth cut edge is usually used both generated when the self-adhesive film in front of the front of the cutter is pulled downwards in the middle, i.e. without deflection to the left or to the right, or also with lateral deflection, i.e. diagonally to the left or towards is pulled to the right. It is essential for simple cutting to length that the self-adhesive film experiences an incision on one of the integrated cutting knives (4). This will be below forwarded on the front edge (2a) of the film support surface such that a smooth cutting edge over the entire width of the self-adhesive film used becomes.

According to Fig. 3, a cutting device can also be used according to the invention only a one-sided cutting knife (4) can be used. In this case, the incision is made in the tape strips to be cut off on this knife. The incision is forwarded accordingly at the front edge (2a) of the film support surface (2), so that a smooth cutting edge over the entire width of the self-adhesive film used is produced.

The cutting knives which can be used according to the invention can have different shapes his. Examples include triangular knife geometries with a straight knife edge. Other shapes include round knife edges or those that consist of several straight and // or round segments are constructed. To different adhesive films Cut the width in all cases while using rigidly fixed knives to be able to, the distance that protrudes beyond the film support surface (2) Cutting from each other may be smaller than the width of the adhesive film used.

With triangular knife geometries with a straight knife edge, the risk of injury increases with increasing height of the knives on the inside of the side webs (3i) and with the width of the cutting knife above the film contact surface. Is the Inclination angle of the cutting knife (4) in Fig. 1 45 °, so at a knife height on the inside of the side webs (3i) of <approx. 3 mm, which in this case is equal to the knife width above the film contact surface (2), a finger injury can be effectively excluded even if the finger is pressed firmly into the edge in which the knife is located. A reduction in the angle of inclination Knife cutting reduces the risk of injury while the knife width remains the same above the film contact surface (2) and thus enables injury-free use of knives which have a greater width above the film contact surface (2). Corresponding knives can preferably be used if adhesive films are different Width to be processed on a dispenser. So is at an angle of inclination the cutting edge from 30 ° up to a lateral knife height on the inside the webs (3i) of Fig. 1 of 2.5 mm should not be expected to pose a risk of injury. The Knife width above the film contact surface (2) in Fig. 1 is in this case in each case 5 mm. With an inclination angle of 15 ° injuries can occur from a lateral knife height largely on the inside of the side webs (3i) of <approx. 2.0 mm be excluded. In this case, the respective knife widths are above the film contact surface (2) in Fig. 1 approx. 7.5 mm.

If the knife edges are concave with respect to the film contact surface (2), there is one Risk of injury significantly reduced even with large knife widths. Appropriate Knives can therefore preferably be used when the adhesive films to be processed vary widely in width. Specifically, the knives can cover the entire The width of the film contact surface is above the same.

In a special version, the distance between the cutting knives can be about the width of the cutting device can be designed so that a position Adaptation to adhesive films of different widths can be made. E.g. one or both of the side webs (3) can be equipped with cutting blades (4) in Fig. 1 can be arranged movably parallel to the film support surface. advantageously, can be snapped into the cutting device for simple and precise width positioning be integrated, e.g. B. for the standard adhesive film widths 12 mm, 15 mm and 19 mm.

Cutting devices for self-adhesive films according to the invention can be used in a large range Number of dispenser types can be used. Suitable dispenser types include Table and handheld dispensers, in which the housing holding the adhesive tape roll is spatially separated from the film support and the cutting device, compact dispenser as well as transfer dispensers as previously described.

A large number of commercially available blade knives are suitable as cutting knives. Typical examples include steel knife blades with preferred thicknesses between approx. 0.08 mm and 0.8 mm. Steels can be hardened, e.g. B. a titanium nitride coating have undergone in order to achieve increased knife service life. A typical grinding angle is 10 °, with suitable blade knives both can have a cut on both sides. The aforementioned versions understand each other as an example.

Test Methods Testing for tear-free redetachment of applied self-adhesive films

10 strips of adhesive film each with a length of approx. 3 cm are cut off on the dispenser. The The tape is removed by pulling the adhesive film at an angle of approx. 75 ° to the Front of the cutting device without lateral deflection of the adhesive film strips (Cut forward). The experiment can also be carried out with lateral deflection of the Adhesive films take place (oblique cutting). In the latter case, the adhesive film is each cut off from one side. The adhesive film strips obtained are Then, by rubbing lightly with your finger, free of air bubbles on plastic plates consisting of hard PVC (type: Kömadur WA; supplier: Krüger / Wedel), then rolled over 5 times with a 1 kg pressure roller. The one with adhesive film strips PVC sheets provided are subsequently stored in the climatic room for 3 days (T = 23 ± 2 ° C; Humidity = 50 ± 10%).

To check for tear-free redetachment, the adhesive strips are removed manually from the PVC primer removed. To do this, the adhesive film strips are started from a corner detached with your fingernail, then carefully up to half the length of the adhesive film abgschält. The adhesive film strips are on the opposite separating edge replaced in the same way. In total, there are 20 on the 10 adhesive film strips Attempted replacement. The trials in which the Peel off the adhesive film strips from the PVC without tearing at the severed edge to let.

Check for risk of injury

A tesa table dispenser 6059, which is equipped with the cutting device to be tested is in the longitudinal direction in front of the test subject on a table. The subject pulled a Glovex vinyl glove (item no .: 71259) over his hand. She puts her index finger on the support surface and presses the finger with approx. 5N Pressure against the knife blade arranged on the side. Then the finger of the glove examined for cuts. The test is done with test subjects with a finger diameter of approx. 12 ± 2 mm.

Testing for the ability to cut off pieces of adhesive film

• "mäßig schwer" wenn die Abtrennkraft subjektiv derjenigen Kraft vergleichbar ist, die zum Abtrennen eines Stückes tesa Multi-Film am tesa Tischabroller 6059 nötig ist.
• "sehr leicht" wenn die Abtrennkraft subjektiv derjenigen Kraft vergleichbar ist, die zum Abtrennen eines Stückes tesa Multi-Film an einem tesa Tischabroller 6059 benötigt wird, bei welchem das vorhandene gezahnte Schneidmesser gegen ein Rasierklingenmesser ausgetauscht ist (Klingendicke = 0,3 mm; Material: Stahl; Schneide beidseitig senkrecht geschliffen; Schleifwinkel = 2 * 10°).

10 strips of adhesive film each with a length of approx. 3 cm are cut off on the dispenser. The removal is carried out as described under "Testing for tear-free redetachment of applied adhesive films". The adhesive film strips are cut off without lateral deflection (cut to the front). The force required to tear off the adhesive film strips is subjectively compared with that required to tear off the tesa table dispenser 6059. The assessment is:

• "Moderately difficult" if the severing force is subjectively comparable to the force required to tear off a piece of tesa Multi-Film on the tesa table dispenser 6059.
• "very light" if the severing force is subjectively comparable to the force required to sever a piece of tesa Multi-Film on a tesa table dispenser 6059, in which the toothed cutting knife is exchanged for a razor blade knife (blade thickness = 0.3 mm; material : Steel; cutting edge vertically ground on both sides; grinding angle = 2 * 10 °).

example 1

In the case of a tesa table dispenser 6059, the existing cut-off device is attached with adhesive film overlay by an aluminum cutting device replaced, which is shaped in its upper part according to Fig. 1 is. On an adhesive film contact surface that runs parallel to the base of the adhesive tape dispenser the dimensions 20 mm * 3 mm (width * depth) border on both Side bars measuring 5 mm * 2.5 mm * 3 mm (height * width * depth). On The front of the adhesive film overlay is triangular on both corner areas Razor blade knife (thickness: 0.3 mm; steel ground vertically on both sides; Grinding angle = 2 * 10 °) of dimensions 5 mm * 5 mm (lateral height * lower width) glued so that the lower edge of the cutting knife parallel to the footprint of the Adhesive tape dispenser runs and a triangular piece of the cutting knife each Height 2 mm and width 2 mm protrudes from the film contact surface. The leading edge the film contact surface is rectangular.

Self-adhesive films # 1 to # 6 with a width of 19 mm are tested for cutability, structure of the cut edge and tear-free redetachment of glued adhesive film strips. The risk of injury on the cutting blades is also assessed. The following properties result:

In all cases, the cutting device according to the invention results a smooth and straight cut edge. All adhesive films can be used with both Cutting off to the front as well as when cutting diagonally very easily, the calender film Separate easily based on a mixture of PE and EVAc copolymer. Nearly all adhesive strips can be removed without tearing after gluing.

For comparison, the adhesive films # 1 to # 3 on the one equipped with an original knife tesa dispenser 6059 processed. The detachment is considered easy in all cases when cutting obliquely and as moderately difficult when cutting in the middle. A tear-free redetachment of glued adhesive film strips is only possible in approx. 10 up to 30% of all cases possible.

Example 2

An analogous example. 1 modified tesa table dispenser 6059 is provided with cutting knives of different shapes. In the table below, the shape of the tried-and-tested knife is sketched under "knife shape". Under "Knife dimensions" a indicates the knife height of the cutting knife on the inner edge of the side webs (3i) in Fig. 1 and b the width of the cutting knife on the front edge of the film support surface (2a) in Fig. 1. A symmetrical experimental setup was chosen in all cases. tesa Multi-Film (= adhesive film # 2 from example 1) in widths of 12 mm, 15 mm and 19 mm is compared to be checked for cutting ability, structure of the cut edge and tear-free redetachment of glued adhesive film strips. The risk of injury on the cutting blades is also assessed. For experiment 2.6, an original knife of the tesa table dispenser 6059 was cut to the specified shape. Knives according to Ex. 1 chosen as the starting material. The following properties result:

Depending on the knife geometry and knife size, test setups can be implemented, which reliably cut all adhesive film widths or only a part. Triangular knife geometries, even with low angles of inclination, allow a very easy and smooth cutting of all tested adhesive film widths at the same time only little or no risk of injury if the knives come into direct contact with a finger. Cutting knives with regard to the film contact surface have proven to be particularly advantageous are concave. The tear-free removal of the self-adhesive films is through the use of non-toothed, smooth, very sharp cutting knives in the Compared to a classic dispenser knife significantly improved in all cases.

A very easy cutability of the used is used for all experimental setups Adhesive film observed with formation of a smooth cut edge. With falling knife overhang is due to the short distance of the cutting knife to the film contact surface realized a minimum risk of injury.

Claims (11)

1. Adhesive tape dispenser with a cutting-off device, having a blade, where the cutting-off device (1) has a resting surface (2) for the adhesive tape (22) to be cut off, with two lateral webs (3) for the lateral guidance of the adhesive tape (22) on both the edges of the said resting surface, a cutting blade (4) being arranged on the inner side of one or both webs (3) in such a way that the blade edge is inclined at an angle obliquely with respect to the resting surface (2), the webs (3) being made higher or the same height as the cutting blade or blades (4), characterized in that the cutting blades (4) are arranged in the region of the lateral webs (3), and are shielded by them, in such a way that they cannot be reached with a finger in such a way that fingers are injured, the lateral webs (3) being formed in such a way that they do not protrude beyond the cutting blades (4) and the front edge (2a) of the resting surface (2) being arranged in such a way that it continues the cuts made by the cutting blades (4) in the adhesive tape (22) in such a directed manner that a smooth cut edge is produced in the adhesive tape (22).
2. Adhesive tape dispenser according to Claim 1, characterized in that the cutting blades (4) are arranged on the front side, i.e. the side on which a hanging-down piece of adhesive tape (22) is removed, of the cutting-off device (5).
3. Adhesive tape dispensed according to Claim 1, charecterized in that the surfaces of the cutting blades (4) are arranged parallel to the front side of the cutting-off device (5).
4. Adhesive tape dispensed according to Claim 1, characterized in that there is a cutting blade (4) arranged on each of the both the webs (3).
5. Adhesive tape dispenser according to Claim 1, characterized in that the angle by which the blades (4) are inclined with respect to the resting surface (2) is 85° to 2°, in particular 70° to 5°, preferably 50° to 5°.
6. Adhesive tape dispenser according to Claim 1, characterized in that the front side of the cutting-off device (5) is formed with a straight edge (2a), with which the edges of the cutting blades (4) are aligned in one line.
7. Adhesive tape dispenser according to Claim 1, characterized in that the cutting blades (4) take the form of separate blades or a one-part blade.
8. Adhesive tape dispenser according to Claim 1, characterized in that the cutting blades (4) are designed in a triangular form and are respectively arranged on the lateral webs (3).
9. Adhesive tape dispenser according to Claim 1, characterized in that the cutting blades (4) are designed in a concave form with respect to the film resting surface (2) and are respectively arranged on the lateral webs (3).
10. Adhesive tape dispenser according to Claim 1, characterized in that the distance apart of the cutting blades (4) is made such that it can be set in position.
11. Use of an adhesive tape dispenser according to one of Claims 1 - 10 for cutting off adhesive tapes without injury with a backing consisting of biaxially oriented or highly stretched film, in particular of polyolefin.

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