EP3725717B1 - Adhesive tape dispenser - Google Patents

Description

The invention relates to an adhesive tape dispenser.

Adhesive tape dispensers are well known from the prior art.

the EP 2 966 019 A2 discloses according to the preamble of claim 1 an adhesive tape dispenser for an adhesive tape roll with a core element, the dispenser consisting essentially of a carrier unit. The document also discloses a metal bracket that presses a portion of adhesive tape onto an applicator roller.

A problem with the prior art is that tape can detach from the tape dispenser too early. It can happen that detached sections of adhesive tape are reconnected to the adhesive tape roll, which makes it more difficult to detach again. Sections of adhesive tape can also be knotted, with untying being impossible and/or very time-consuming in view of the adhesive effect of the adhesive tape. Another problem can be tearing of the adhesive tape if the forces acting on the adhesive tape become too great.

Another problem arises from noise pollution in the workplace. Tape dispensers can be very noisy when applying tape. Since professional adhesive tape dispensers are often used for hours and several days a week, this high volume can be a burden for the employee and, in extreme cases, can also affect the health of the employee. It is therefore advantageous if the adhesive tape dispensers apply adhesive tape as quietly as possible.

The object of the present invention was therefore to overcome the disadvantages of the prior art and in particular to provide an adhesive tape dispenser with which adhesive tape can be applied particularly reliably, conveniently and with little noise.

The object is achieved by an adhesive tape dispenser according to claim 1.

The handle can preferably be designed as a tangential or radial handle. The adhesive tape roll can optionally be part of the adhesive tape dispenser, but an adhesive tape dispenser without an adhesive tape roll is preferred, but which can hold an adhesive tape roll in the manner described above.

Surprisingly, the friction bridge with the deflection bead, in particular with the transverse elevation or the deflection contact surface of the deflection bead, and in particular also the bridge sliding surface, improves the application of adhesive tape sections quite considerably. It is assumed - without being bound to a theory - that attractive interactions act between the deflection bead, in particular the transverse elevation or the deflection contact surface of the deflection bead, and in particular also the bridge sliding surface and the adhesive tape section lying on it, which increases the probability of an unintentional detachment of the adhering adhesive tape section to decrease. This can also involve, among other things, Van der Waals forces. However, it is assumed that an electrostatic attraction between the friction-generating deflection bead, in particular the transverse elevation or the deflection contact surface of the deflection bead, and/or the bridge sliding surface and the adhesive tape section could play a not inconsiderable role. It is also particularly surprising that these attractive forces beyond the deflection bead, in particular the transverse elevation or the deflection contact surface of the deflection bead, and in particular also the bridge sliding surface, can bring about improved adhesion, which may be related to the fact that the deflection bead and in particular also the bridge sliding surface are electrostatically charged by friction can generate, which also continues to work beyond the deflection bead or bridge sliding surface. Irrespective of the actual mechanism of action, the applicability of the adhesive tape is significantly improved with the friction bridge according to the invention and the probability of the adhesive tape knotting is reduced. In the adhesive tape dispenser according to the invention, the bridge sliding surface preferably acts as a sliding or contact surface for the adhesive tape sliding along it. preferably its non-adhesive reverse side, but can also serve only or additionally as a contact surface. In a possible embodiment variant, after leaving the deflection bead, the adhesive tape does not come into contact with the bridge sliding surface, or only partially, when passing the so-called bridge sliding surface. In these embodiments, the bridge sliding surface can also be referred to simply as a bridge surface.

In a further embodiment of the adhesive tape dispenser according to the invention, attention is paid to such an adhesive tape dispenser, comprising a handle in the form of a radial handle, a receiving device with a bearing, in particular a pivotable and/or rotatable bearing, in particular a central bearing, for a roll of adhesive tape, an application device with a bearing, in particular a rotatable one , Application roller, wherein the radial handle has a longitudinal axis, wherein the longitudinal axis, in particular the radial handle, and the application roller are located on opposite sides of an intermediate plane, the intermediate plane being arranged parallel to the longitudinal axis of the radial handle and the bearing axis of the bearing, in particular the central bearing, in one first bearing position lies in the intermediate plane and/or wherein the application roller and the bearing, in particular the central bearing, are on the same side with respect to the longitudinal axis when a cross section is viewed orthogonally to the bearing axis. The intermediate level is a level to be constructed hypothetically and not an actual device object of the adhesive tape dispenser device according to the invention. This adhesive tape dispenser comprises a non-rotatable friction bridge with a bridge sliding surface and a deflection bead, the adhesive tape dispenser being designed and set up in particular in such a way that a section of adhesive tape of an adhesive tape roll present on the bearing, in particular rotatably mounted, slides over the deflection bead and, if necessary, also over the bridge sliding surface or can slide before hitting the application device.

The radial handle allows a particularly compact design if its longitudinal axis is arranged as described above. In this case, the receiving device and the application roller are preferably located on the same side of the longitudinal axis.

The receiving device preferably also includes a mechanism for pivoting the bearing, in particular the central bearing, from the first bearing position into a second bearing position. For this purpose, the bearing is preferably attached to a pivotable swivel arm. The bearing is preferably rotatable and pivotable, in particular rotatable about its own bearing axis and pivotable by pivoting the pivot arm about a pivot arm axis, particularly preferably wherein the position of the bearing axis of deviates from the position of the swing arm axis and/or wherein said axes are substantially parallel. The bearing, in particular the central bearing, is preferably prestressed in order to move from the first to the second bearing position. When using the tape dispenser, if the roll of tape has a lot of tape, the stock will be at or near the first stock position and as the amount of tape on the roll of tape decreases, the stock will automatically approach the second stock position. This ensures that the friction bridge is always positioned close to the roll of tape. Where reference is made in this disclosure to the position of the bearing, the first bearing position is preferably meant unless the context dictates otherwise. The first storage position is preferably a position which is in the center of a cylindrical housing for the roll of adhesive tape.

A "handle" within the meaning of the present invention can take various forms. Tangential and radial grips have proven particularly useful. In the case of the radial handle, the handle points with its longitudinal axis in the direction of the bearing, particularly in the first bearing position. The longitudinal axis of a radial handle does not necessarily have to lead directly through the bearing in the first bearing position and/or the bearing axis in the first bearing position, but preferably close to it, in particular no more than 3 cm, particularly preferably no more than 2 cm, objected to by the bearing and/or the bearing axis in the first storage position, where the distance between the longitudinal axis and said bearing or said bearing axis in the first storage position is shortest. In the case of the radial handle, it is preferably provided that the shortest distance between the longitudinal axis and the bearing is present in the first bearing position beyond the radial handle. With a tangential grip, on the other hand, the grip does not point with its longitudinal axis to the bearing, particularly in the first and second bearing position. Instead, the longitudinal axis of the handle is further away from the bearing and/or the bearing axis than with the radial handle, especially where the distance between the longitudinal axis and said bearing or said bearing axis is shortest, more than 3 cm, in particular more than 4 cm. particularly preferably more than 5 cm, in particular in the first and/or second storage position. In the case of the tangential grip, it is preferably provided that the shortest distance between the longitudinal axis and the bearing, in particular in the first bearing position, is at a point on the longitudinal axis within the tangential grip. While the longitudinal axis of a radial grip preferably runs through an area in which the roll of adhesive tape is present when used in accordance with the generic type, this is usually not the case with a tangential grip. The longitudinal axis of a tangential grip usually does not come close to the roll of adhesive tape when used in accordance with the generic type, and in particular has a minimum distance of 3 cm from the outside area the roll of tape. The longitudinal axis of the handle can also be referred to as the handle axis. It is preferably the central axis of the handle which passes directly through the handle along its length. Both tangential and radial grips can have a basic cylindrical shape, with the cross section usually not being round but elliptical. Preferably, tangential and radial grips are linear and not curved.

A "section of adhesive tape" within the meaning of the present invention can be connected to the roll of adhesive tape, but is preferably no longer attached radially to the core of the roll of adhesive tape, but is detached, but is preferably still connected at the end to the rest of the roll of adhesive tape. This is therefore a section of adhesive tape that protrudes completely or partially from the roll of adhesive tape and is connected to the roll of adhesive tape at the end and/or in one piece, provided it has not yet been cut off. Typically, the portion of tape includes an adhesive tape side and an opposite non-adhesive tape side. In most cases, this is achieved by the adhesive tape being coated with an adhesive layer on only one side. After the adhesive tape section has been applied with the adhesive tape dispenser, i.e. after the adhesive tape section has been applied to a surface, it is usually cut off and another adhesive tape section can be applied. Said further section of adhesive tape has already been completely or partially detached from adhesive tape at the time it is cut off. It should be pointed out that the roll of adhesive tape and the section of adhesive tape are only optional components of the adhesive tape dispenser and an adhesive tape dispenser without an adhesive tape roll is also claimed.

"Rotationally fixed" in the sense of the present invention means that the corresponding element is fixed in a non-rotatable manner, for example connected or glued or screwed to it in one piece. Of course, the adhesive tape dispenser can be turned as a whole by a user and thus also the non-rotating elements. What is meant is that a non-rotatable element does not rotate in relation to the main body of the rest of the adhesive tape dispenser, in particular not in relation to the handle or possibly the housing. The reference system is therefore the adhesive tape dispenser itself, for example also the handle and possibly the housing of the adhesive tape dispenser. A rotatable element is rotatably connected to the remainder of the adhesive tape dispenser, in contrast to a non-rotatable element. Preferably, the corresponding element can also not perform a partial rotation and/or pivoting movement with respect to the reference system. A pivotable element is to be understood analogously with the same reference system.

The adhesive tape dispenser is preferably designed for an adhesive tape with an adhesive tape width and the deflection bead comprises a deflection contact surface which is less wide than the adhesive tape width of the adhesive tape, the adhesive tape section of the adhesive tape having adhesive tape edges and when the adhesive tape dispenser is used generically when sliding over the deflection bead with its adhesive tape edges is spaced from the deflection contact surface, in particular spaced from the deflection bead. Preferably said deflection contact surface comprises. This reduces noise emissions.

The adhesive tape dispenser is preferably designed for an adhesive tape with an adhesive tape width of at least 47 mm, with the deflection contact surface having an adhesive tape width of less than 43 mm, in particular less than 40 mm. In some configurations, the adhesive tape dispenser is designed for an adhesive tape with an adhesive tape width of 47 to 51 mm, the deflection contact surface having a contact surface length of less than 43 mm, in particular less than 40 mm. In some configurations, the deflection bead is designed in such a way that a polyvinyl chloride packing tape section of a polyvinyl chloride packing tape roll with an adhesive tape width of 48 to 50 mm is guided along said deflection bead in such a way that the edges of the polyvinyl chloride packing tape section do not contact the deflection bead, in particular the friction bridge on the deflection bead do not contact. In one configuration, the adhesive tape dispenser is designed for an adhesive tape with an adhesive tape width of 37 to 51 mm, the deflection contact surface having a contact surface length of less than 37 mm, in particular less than 35 mm. The length of the contact surface is preferably determined orthogonally to the direction in which the adhesive tape section slides over the deflection bead and in particular also over the bridge sliding surface.

In some configurations, the deflection bead includes a transverse elevation, in particular a transverse curvature. It has been shown that the noise when stripping off the roll of adhesive tape is reduced by the transverse elevation, in particular transverse curvature. Without being bound to a theory, it is assumed that the adhesive tape edges of the adhesive tape vibrate upon contact and that this vibration does not occur to the same extent if a transverse elevation, in particular transverse curvature, prevents said contact at the deflection bead. The vibration can generate noise in a high frequency range.

The deflection bead preferably comprises said transverse elevation, the transverse elevation being designed and set up to distance the adhesive tape section from the deflection bead at the edges, while the adhesive tape section makes contact with the transverse elevation away from the edges of the adhesive tape. It is preferably provided that the transverse survey, in particular Transverse curvature, in the generic use, the edges of the adhesive tape section of an adhesive tape roll with an adhesive tape width of 48 mm to 50 mm distanced from the deflection bead.

The deflection bead preferably comprises a deflection contact surface with which the adhesive tape section is in contact when the adhesive tape dispenser is used in accordance with the generic type for applying adhesive tape. In some configurations, the adhesive tape edges of the adhesive tape are not in contact with said deflection contact surface, in particular with the deflection bead, in said generic use of the adhesive tape dispenser for applying adhesive tape. In a particularly expedient embodiment, the deflection bead is in one piece with the bridge sliding surface or the element that forms the bridge sliding surface. The deflection bead and the bridge sliding surface are preferably an integral part of the friction bridge.

Preferably, the transverse elevation, in particular at a distance from the friction bridge sides, has a transverse elevation maximum at which the adhesive tape section contacts, while the transverse elevation beyond the transverse elevation maximum, in particular two or more peripheral, transverse elevation minima, to which the adhesive tape section, in particular the adhesive tape edges of the adhesive tape section, at which generic use of the adhesive tape section for applying adhesive tape not contacted.

Preferably, the transverse ridge extends between opposite friction bridge sides of the friction bridge. In some configurations, the transverse elevation extends from or from a first friction bridge side to or towards a second friction bridge side. Preferably, the transverse ridge has a transverse ridge maximum which is between and spaced from the friction bridge sides, particularly spaced midway between the friction bridge sides. In one embodiment, the transverse elevation spans a polygonal or continuous arc from the first to the second friction bridge side.

The transverse elevation can be designed as a transverse curvature. Alternatively or additionally, a polygonally shaped transverse elevation is also conceivable. In some configurations, the polygonally shaped ridge has a cross-section in which it has two legs that comprise ridge minima and a linear connecting line between the limbs that comprises the transverse ridge maximum.

The transverse elevation preferably has at least one cross section which extends orthogonally to the running direction of the adhesive tape section on the transverse elevation and/or to the deflection sliding surface, the transverse elevation being visible in said cross section as a raised and/or curved contour. Alternatively or additionally, the transverse elevation has at least one cross section which extends parallel to the bridge sliding surface, the transverse elevation being visible in said cross section as a raised and/or curved contour. If the deflection curve does not have a transverse elevation, it can be provided that the deflection curve is not recognizable as a raised and/or curved contour, but as a straight line in said cross sections.

The adhesive tape dispenser includes a receiving device. In one configuration, the receiving device can comprise a carrier plate, a closed housing or a semi-closed housing. The housing is preferably designed and set up to accommodate the roll of adhesive tape and, if necessary, also to hold the cutting blade and the application roller. A closed or semi-open housing with a cylindrical recess for a roll of adhesive tape is particularly preferred. In one embodiment, the cutting blade is detachably connected to the receiving device, in particular the housing, preferably with no tools being required to loosen the cutting blade. A clamping mechanism, for example, has proven to be suitable.

In some configurations it is provided that after detachment from the roll of adhesive tape, the adhesive side of the adhesive tape section is guided without contact over the application roller and/or the friction bridge, in particular sliding over it with the non-adhesive side making contact. In the generic use, the receiving device preferably does not contact an adhesive tape, in particular the adhesive tape section, on the adhesive side, but only on the non-adhesive side.

It is particularly preferred if the recording device. In particular, the friction bridge and/or application roller is designed and set up to adhere to the non-adhesive side of the adhesive tape, in particular to the non-adhesive side of the adhesive tape section. The liability can be based, for example, on van der Walls forces and/or electrostatic forces of attraction. Unlike the sticky side, however, no adhesive is provided for adhesion. Metal brackets are also known from the prior art, which rest on the adhesive side and prevent the adhesive tape from becoming detached. However, this has the disadvantage that the friction is significantly increased. Surprisingly, such metal brackets are not required in the present invention.

The recording device includes a bearing for a roll of adhesive tape. The bearing is preferably rotatable in whole or in part, so that sections of adhesive tape can be unrolled from the roll of adhesive tape. In principle, it is also conceivable that the roll of adhesive tape includes a rotational bearing and is applied to a rotationally fixed bearing of the adhesive tape dispenser. In any case, it is preferred if a roll of adhesive tape connected to the bearing is rotatable, in particular rotatable about a bearing axis.

The bearing of the present invention is preferably designed as a central bearing, i.e. when a roll of adhesive tape is fixed to the bearing in the generic manner, the bearing is arranged centrally with respect to the roll of adhesive tape. In principle, there are also bearings that are not in the middle of the roll of adhesive tape. Nevertheless, central warehouses have proven particularly useful.

The application device includes an application roller. The adhesive tape section can be pressed onto the substrate to be covered with the adhesive tape with the application roller in order to achieve adhesion. It is preferably an application roller with a roller surface made of or comprising plastic. The plastic is preferably more elastic and/or softer than the material, in particular the plastic, of the friction bridge, particularly preferably the deflection bead and/or the bridge sliding surface. Although the application roller and the friction bridge are optimized for contacting the adhesive tape section, a more elastic and/or softer roller surface has proven to be advantageous. Due to a certain softness and/or elasticity, the rolling surface can compensate for unevenness in the substrate to which the adhesive tape is to be applied, so that more even pressing is facilitated. The frictional resistance of the application roller when it is not rotating is preferably higher than the frictional resistance of the deflection bead and/or the bridge sliding surface. It has thus proven itself to select a softer material for the rolling surface and/or application roller than for the friction bridge.

In a very particularly preferred embodiment, the rolling surface and/or application roller is provided with a powder, in particular coated. In one embodiment, the powder is talc or powdered talc. The powder adheres to the rolling surface and/or applicator roll and improves the unrolling of the tape. This works particularly well if the rolling surface is more elastic and/or softer than the material, in particular the plastic, of the friction bridge, in particular the deflection bead and/or the bridge sliding surface.

In one embodiment, the friction bridge is arranged between the application roller and the bearing, particularly when the bearing is in the second bearing position.

In an expedient embodiment, the friction bridge and/or deflection bead and/or bridge sliding surface is installed in the adhesive tape dispenser in such a way that it is non-rotatable so that it does not come into contact, in particular does not come into contact, with the generic use for applying adhesive tape on a level surface can. This makes it easier to unroll.

The friction bridge is preferably designed and set up to come into contact with the non-adhesive side of an adhesive tape when used in accordance with the generic type.

It is also preferred if the bridge sliding surface has a bridge sliding surface length which is greater than or essentially the same as the length of the application roller. Two lengths are essentially the same size at least when the longer of the lengths is no more than 20%, in particular no more than 10%, longer. It has been shown that the adhesion of the adhesive tape section to the bridge sliding surface is better the larger the bridge sliding surface is. The friction bridge and/or the deflection bead and/or the bridge sliding surface preferably has a sliding surface width which is at least 10% of the sliding surface length of the deflection bead and/or the bridge sliding surface, in particular at least 25%. However, the width of the sliding surface should preferably not be more than 200%, in particular not more than 100%, particularly preferably not more than 70%, of the length of the sliding surface of the bridge sliding surface. A comparatively large sliding surface width of the deflection bead and/or the bridge sliding surface ensures better adhesion of the adhesive tape section. However, if the sliding surface width of the bridge sliding surface becomes too large, it is more difficult to accommodate it within the adhesive tape dispenser in a space-saving manner. Said sliding surface width is preferably determined in the direction in which the adhesive tape section slides over the bridge sliding surface. Said sliding surface length is preferably determined orthogonal to this direction.

The friction bridge and/or the deflection bead and/or the bridge sliding surface preferably has a bridge width which is at least 10% of the bridge length of the friction bridge, in particular at least 25%. However, the bridge width should preferably not be more than 200%, in particular not more than 100%, particularly preferably not more than 70%, of the bridge length of the friction bridge. Said bridge width is preferably determined in the direction in which the adhesive tape section slides over the bridge sliding surface. Said bridge length is preferably determined orthogonal to this direction.

The bridge sliding surface preferably has a size of at least 1 cm ² , in particular at least 2 cm ² , particularly preferably at least 5 cm ² .

The friction bridge preferably comprises a plastic, in particular consists predominantly, i.e. at least 50%, of this, preferably at least 80% or completely. In principle, a friction bridge made of metal is also conceivable, but plastics have proven to be particularly useful. Said plastic is preferably selected from a group consisting of polyamide, polycarbonate, acrylonitrile-butadiene-styrene, styrene-acrylonitrile copolymer, polyacetals, in particular polyoxymethylene (POM), polyurethane, polyketone, polyester-urethane rubber, polyetherketone, in particular PEK, PEKK , PEEEL, polymethacrylate. Hard plastics have proven to be particularly suitable, especially with regard to adhesive properties and friction. The friction bridge preferably comprises the plastic polyamide, in particular polyamide 6.6 or polyamide 6. Polyamide 6.6 has proven to be particularly suitable. Polyoxymethylene (POM) has also proven to be particularly suitable. With POM it was found that friction is reduced and electrostatic charging is improved. It was found that polyamide and/or polyoxymethylene, in particular polyoxymethylene, is accompanied by improved, in particular electrostatic, adhesion of adhesive tape sections to the deflection bead and/or, in particular and, the bridge sliding surface. Preferably, the transverse elevation and/or deflection contact surface of the deflection bead or the deflection bead or the bridge sliding surface, in particular the friction bridge, or the transverse elevation and/or deflection contact surface of the deflection bead and the bridge sliding surface or the deflection bead and the bridge sliding surface contain polyamide, in particular polyamide 6.6 and/or polyamide 6, and/or a polyacetal, in particular polyoxymethylene, or, which is preferred, consist of these, with polyoxymethylene being preferred.

The aforementioned plastic of the friction bridge preferably forms the surface of the bridge sliding surface and/or, preferably and, the deflection bead, in particular the surface of the entire friction bridge. The bridge sliding surface and/or the deflection bead preferably consists of one of the plastics mentioned, in particular polyamide and/or polyoxymethylene. The core of the friction bridge can also be made of a different plastic, for example that of the other components of the adhesive tape dispenser, or it can be made of a different material, for example a metal.

In a further embodiment, the friction bridge is designed in one piece, in particular from one of the plastics mentioned.

The friction bridge is preferably secured against rotation via at least one, in particular mechanical, fixing element. Alternatively or additionally, the friction bridge can be glued to the rest of the adhesive tape dispenser or can be made in one piece with it. Screws, nails, bolts, etc. have proven to be suitable as fixing elements, and these can be made of metal or plastic, for example. The friction bridge is preferably fastened in a rotationally fixed manner via a first and second fixing element. Two to four fixation elements are particularly suitable to prevent any rotation.

The friction bridge may include at least one stiffening leg. The stiffening leg gives additional stability. A first stiffening leg can be provided for the first fixing means and a second stiffening leg for the second fixing means.

Preferably, the friction bridge is non-rotatably connected to the rest of the tape dispenser at at least four points.

The friction bridge includes a deflection bead. It is preferred here if the adhesive tape section is deflected at the deflection bead during generic use of the adhesive tape dispenser, preferably a deflection by at least 45°, in particular by at least 90°, particularly preferably by more than 90°.

The deflection bead can be connected in one piece to the bridge sliding surface. It can also be designed as a deflection pin. The deflection pin is designed to be rotatable or non-rotatable, preferably non-rotatable. The deflection bead can also be formed spaced apart from the bridge sliding surface, in particular spaced apart by a bridge recess.

The deflection bead is preferably rounded off with a central osculating circle. The rounding or a cross section of the rounding preferably has at least one rounded area with a point, in particular a second point, whose osculating circle, also called the circle of curvature, has an average osculating circle radius, in particular a second average osculating circle radius, of 0.1 mm to 50 mm, preferably 0 2 mm to 20 mm, particularly preferably 0.7 to 10 mm. The deflection bead can also be formed by a deflection pin with said average osculating circle radius.

The friction bridge preferably comprises a receiving curvature, in particular a concave one. It is particularly preferred if the receiving curvature ensures that the friction bridge does not collide with the application roller, thus preventing friction between the application roller and the friction bridge by receding in this area. The application roller preferably borders on the receiving curvature.

In an expedient embodiment, the friction bridge comprises a deflection section, in particular a preferably rounded deflection edge. The deflection section is preferably designed to detach the adhesive tape section from the friction bridge if it is in contact with it. In numerous configurations, the deflection section, in particular the deflection edge, marks one end of the bridge sliding surface. The deflection section, in particular the deflection edge or bridge sliding surface, can be adjoined by a surface that is inclined relative to the bridge sliding surface. In some configurations, the friction bridge comprises said deflection section, in particular said deflection edge, with the deflection section being closer to the application roller than the deflection bead, in particular with the adhesive tape dispenser being designed and set up in such a way that an adhesive tape section of an adhesive tape roll present on the store slides over the deflection section as it unrolls and is deflected there and/or separated from the friction bridge. It can be provided that the adhesive tape does not or only partially contact the inclined surface when used in accordance with the generic type.

In some configurations, the friction bridge includes a rounded contact bead in addition to the deflection bead. The rounded contact bead should preferably receive the adhesive tape, in particular detach it. The deflection bead can also be rounded and receive the adhesive tape. A contact bead is therefore not absolutely necessary. If a contact bead is provided, it has proven useful if the deflection bead is rounded less than the contact bead, in particular the rounding of the contact bead describes a larger mean osculating circle radius. The contact bead is preferably provided closer to the deflection bead than to the deflection section, in particular the deflection edge. It is also particularly preferred if the bridge sliding surface extends to the deflection bead and the rounded contact bead is beyond the deflection bead. In some configurations, the adhesive tape first contacts the rounded contact bead of the friction bridge as it unrolls.

In some preferred configurations, a contact bead is not provided and the deflection bead, which is in particular rounded, accepts the adhesive tape in the generic use.

The deflection bead preferably transitions continuously into the bridge sliding surface, in particular continuously in the mathematical sense and/or without forming a sharp edge.

Preferably, said contact bead has a rounded area in cross section with a first point, the osculating circle of which has a first mean osculating circle radius. The deflection bead preferably has a rounded area with a second point in cross section, the osculating circle of which has a second mean osculating circle radius. In one configuration, the second mean oscillating circle radius is many times smaller than the first mean osculating circle radius, in particular at least three times smaller. The second mean osculating radius is preferably 0.1 mm to 10 mm, in particular 0.2 mm to 3 mm, particularly preferably 0.7 to 2 mm. It is assumed that a mean second mean osculating circle radius is associated with greater friction and thus with greater electrostatic charging.

Preferably, the bearing for a roll of adhesive tape, which is in particular rotatable about its own axis, can be pivoted between a first and a second bearing position, in particular from the first to the second bearing position and no further in each case and also vice versa, with the bearing being attached to a pivot arm which connected to a preloaded swivel arm spring, the swivel arm spring urging the swivel arm and the bearing towards the second bearing position, the bearing being closer to the deflection bead of the friction bridge in the second bearing position than in the first bearing position. Preferably, the crossbar for the activation plate is oriented orthogonally to a pivot bar, with the pivot arm pivoting about the pivot bar.

Preferably, at least one fixing projection, in particular a first and, preferably opposite, second fixing projection is provided opposite the bridge sliding surface, in particular with a passage being located between the first and second fixing projection. The at least one fixing projection preferably does not contact the adhesive tape section in the generic use and is spaced apart from the bridge sliding surface and the friction bridge. The at least one fixing projection is preferably permanently installed, i.e. neither rotatable nor pivotable. The fixation projection additionally secures the tape section and shields the bridge sliding surface.

The handle preferably has a longitudinal axis, in particular the longitudinal axis already described, with the longitudinal axis and the application roller being located on opposite sides of an intermediate plane, with the intermediate plane being parallel to the longitudinal axis is arranged and the bearing axis of the bearing is in the first bearing position in the intermediate plane. In one embodiment, this longitudinal axis is less than 5 cm, preferably less than 3 cm, away from the bearing in the first bearing position. This enables a particularly efficient and compact design.

In an expedient embodiment, the bearing for a roll of adhesive tape can be pivoted into such a position that a line and/or plane connecting the application roller axis of the application roller and the bearing axis of the bearing can be defined, which essentially runs parallel to at least one section of the bridge sliding surface. "Essentially parallel" means that the deviation from an exactly parallel orientation is less than 20°, in particular less than 10°, preferably less than 5°. This can be the case, for example, in the first storage position or in a third storage position, with the third storage position being between the first and second storage positions. Alternatively or additionally, provision is preferably made for the bridge sliding surface to run essentially parallel to the application roller axis and/or bearing axis. In one embodiment, a line connecting the application roller axis and bearing axis can be defined, with the bridge sliding surface being oriented essentially parallel to this line and essentially parallel to the application roller axis and/or bearing axis.

In some configurations, the bridge sliding surface is curved. However, the bridge sliding surface is preferably planar and flat, i.e. without curvature.

In a further expedient embodiment, the adhesive tape dispenser comprises a, in particular removable, cutting knife, in particular with a perforation, which can be transferred from a shielded first knife position into a second knife position in which the cutting knife protrudes freely. It has been shown that the cutting blade makes it easier to separate the adhesive tape strip after application. The two knife positions reduce the risk of injury and also prevent accidental cutting off. For example, a button or slide control can be provided with which the knife is manually extended. However, it has proven useful if the adhesive tape dispenser includes a pre-stressed activation plate, the pre-stressed activation plate, when it is loaded with pressure and moved, transfers the cutting knife to the second knife position, counter to the direction of movement of the activation plate, in which the cutting knife protrudes freely. This automatism makes it easier to detach the adhesive tape.

The cutting blade is preferably connected to a mounting block or includes such a mounting block, wherein the mounting block can facilitate fixing of the cutting blade and replacement of the cutting blade. Preferably, the cutting blade can be detached from the receiving block, in particular can be detached without tools.

In some embodiments, the tape dispenser comprises an activation plate spring having a first wire helically wrapped around a crossbar and a second wire helically wrapped around said crossbar, the first and second wires being integrally connected by a bracket, the activation plate having a recess and/or Has projection for fixing the bracket. Surprisingly, it has been shown that the detachment of an applied section of adhesive tape now takes place better. This is by no means a matter of course. To the extent that activation plates are described in the prior art, the crossbar is considered sufficient to rotatably fix the activation plate spring. However, an additional fixation is achieved by means of the recess and/or projection. In principle, gluing is also possible, but mechanical fixation has proven itself, in particular by clamping or holding the bracket through the recess and/or projection. It is believed that the activation plate now hits harder, which makes it easier to cleanly separate an applied section of adhesive tape.

The activation plate can additionally have reinforcement elements, in particular a first and second reinforcement element.

The adhesive tape dispenser preferably comprises an end sliding surface, in particular adjacent to a gap through which the cutting device, in particular the cutting blade, emerges. In one configuration, the end sliding surface comprises metal, in particular aluminum. It is therefore provided shortly before the end at which the section of adhesive tape is severed. The end sliding surface can therefore also be referred to as the end contact surface for an adhesive tape section. The end sliding surface or the end contact surface helps to guide the adhesive tape, with electrostatic interactions being suspected without being bound by theory.

In an expedient embodiment, the adhesive tape dispenser comprises an adhesive tape roll and an adhesive tape section unrolled from the adhesive tape roll and connected to the adhesive tape roll, the adhesive tape section having an adhesive adhesive tape side and an opposite non-adhesive adhesive tape side, the opposite non-adhesive adhesive tape side having a partial area on the deflection bead and the application roller or rests against the deflection bead and the bridge sliding surface and the application roller.

In a further expedient embodiment, the adhesive tape dispenser does not include an adhesive tape roll and an adhesive tape section unrolled from the adhesive tape roll, although it is suitable for these.

The adhesive tape dispenser is preferably designed and set up to guide the adhesive tape section around the deflection bead during application, the adhesive tape edges being spaced at least in regions from said deflection bead, while the adhesive tape section rests centrally on the deflection bead. The invention also relates to an adhesive tape dispenser for the noise-reduced application of adhesive tape with an adhesive tape dispenser as described above, with a section of adhesive tape being guided around a deflection bead during application and the edges of the adhesive tape being spaced at least in regions from said deflection bead, while the section of adhesive tape rests centrally on the deflection bead .

The invention also relates to a method for the noise-reduced application of adhesive tape with an adhesive tape dispenser as described above, the adhesive tape section being guided around a deflection bead during application and the edges of the adhesive tape being spaced at least in regions from said deflection bead, while the adhesive tape section rests centrally on the deflection bead .

The invention is based on the surprising finding that a deflection bead combined with a non-rotatable bridge sliding surface results in considerable improvements in the application of adhesive tape sections. The tape section adheres by means of the friction bridge. Surprisingly, a metal bracket that presses the adhesive tape section against the application roller is no longer required. Rather, it has been shown that adhesion in the direction of or on the application roller can be brought about by the friction bridge, in particular without an element resting on the adhesive side of the adhesive tape section. Knotting or accidental detachment is prevented. In this case, said adhesion can be further improved by the concrete shaping and in particular also the orientation and positioning of the deflection bead and in particular also the bridge sliding surface and above all by a suitable choice of material. While there are definitely solutions in the prior art to ensure the transfer of the adhesive tape to the cutting blade, the present invention shows that a significant improvement is nevertheless possible here by the way of the tape is carefully controlled without altering the tape itself. The development of noise could also be reduced with numerous of the described configurations, in particular with a transverse elevation. In particular, it has proven to be very advantageous that after a section of adhesive tape has been cut off with the cutting knife of the adhesive tape dispenser according to the invention, the adhesive tape remains in contact with the end sliding surface or end contact surface. In this way, the adhesive tape is immediately available for the subsequent gluing process. Another advantage here is that the adhesive tape, after leaving the non-rotating friction bridge containing the deflection bead and the bridge sliding surface, reliably and reproducibly reaches the final sliding surface/final contact surface via the application roller without turning over and sticking to itself. This also ensures safe working, in which, moreover, there are no rejects in the form of adhesive tape to be discarded.

Further features and advantages of the invention result from the following description, in which exemplary embodiments of the invention are explained by way of example with the aid of schematic drawings, without thereby restricting the invention.

Figur 1

eine schematische Querschnittsansicht einer Ausführungsform des Klebebandspenders;

Figur 2

eine perspektivische Ansicht einer Ausführungsform des Klebebandspenders aus Richtung der Applikationswalze und der Reibungsbrücke;

Figur 3

eine perspektivische Ansicht einer Ausführungsform des Klebebandspenders aus Richtung der Aktivierungsplatte und des Schneidemessers;

Figur 4

eine schematische Querschnittsansicht einer Ausführungsform der Reibungsbrücke;

Figur 5

eine schematische Ansicht einer weiteren Ausführungsform des Klebebandspenders;

Figur 6

eine perspektivische Ansicht hinter die Aktivierungsplatte;

Figur 7

eine perspektivische Ansicht der Aufnahmevorrichtung einer Ausführungsform des Klebebandspenders;

Figur 8

eine schematische Querschnittsansicht einer weiteren Ausführungsform der Reibungsbrücke;

Figur 9

eine schematische Querschnittsansicht eines Teilbereichs der Ausführungsform der Figur 4;

Figur 10

eine schematische Querschnittsansicht einer weiteren Ausführungsform der Reibungsbrücke,

Figur 11

eine perspektivische Ansicht einer weiteren Ausführungsform der Reibungsbrücke mit Quererhebung;

Figur 12

eine weitere perspektivische Ansicht der Ausführungsform mit Quererhebung der Figur 11;

Figur 13

eine perspektivische Ansicht einer weiteren Ausführungsform der Reibungsbrücke ohne Quererhebung;

Figur 14

eine perspektivische Ansicht einer weiteren Ausführungsform der Reibungsbrücke mit Quererhebung;

Figur 15

eine perspektivische Ansicht einer weiteren Ausführungsform der Reibungsbrücke mit Quererhebung;

Figur 16

eine perspektivische Ansicht einer weiteren Ausführungsform der Reibungsbrücke mit kurzer Umlenkkontaktfläche;

Figur 17

eine schematische seitliche Ansicht der Reibungsbrücke;

Figur 18

eine schematische Darstellung einiger Querschnitte durch die Quererhebung verschiedener Ausführungsformen; und

Figur 19

eine schematische Darstellung einer weiteren Ausgestaltung der Reibungsbrücke.

show:

figure 1

a schematic cross-sectional view of an embodiment of the adhesive tape dispenser;

figure 2

a perspective view of an embodiment of the adhesive tape dispenser from the direction of the application roller and the friction bridge;

figure 3

a perspective view of an embodiment of the adhesive tape dispenser from the direction of the activation plate and the cutting blade;

figure 4

a schematic cross-sectional view of an embodiment of the friction bridge;

figure 5

a schematic view of a further embodiment of the adhesive tape dispenser;

figure 6

a perspective view behind the activation plate;

figure 7

a perspective view of the receiving device of an embodiment of the adhesive tape dispenser;

figure 8

a schematic cross-sectional view of another embodiment of the friction bridge;

figure 9

a schematic cross-sectional view of a portion of the embodiment of FIG figure 4 ;

figure 10

a schematic cross-sectional view of another embodiment of the friction bridge,

figure 11

Figure 14 is a perspective view of another embodiment of the transverse elevation friction bridge;

figure 12

another perspective view of the embodiment with transverse elevation figure 11 ;

figure 13

a perspective view of another embodiment of the friction bridge without transverse elevation;

figure 14

Figure 14 is a perspective view of another embodiment of the transverse elevation friction bridge;

figure 15

Figure 14 is a perspective view of another embodiment of the transverse elevation friction bridge;

figure 16

a perspective view of another embodiment of the friction bridge with short deflection contact surface;

figure 17

a schematic side view of the friction bridge;

figure 18

a schematic representation of some cross sections through the transverse survey of different embodiments; and

figure 19

a schematic representation of a further embodiment of the friction bridge.

figure 1 shows the adhesive tape dispenser 1 comprising a handle 2 in the form of a tangential grip, a receiving device 33 with a bearing 3, in particular a pivotable and/or rotatable one, for a roll of adhesive tape 100, an application device 38 with an application roller 4, in particular a rotatable one, a non-rotating friction bridge 5 with a bridge sliding surface 6 and a deflection bead 26, whereby the adhesive tape dispenser 1 is designed and set up in such a way that an adhesive tape section 103 of an adhesive tape roll 100 in storage in the receiving device slides or can slide over the bridge sliding surface 6 during unrolling by means of the deflection bead before it hits the application device. The adhesive tape section 103 comprises an adhesive adhesive tape side 102 and a non-adhesive adhesive tape side 104. The adhesive tape dispenser 1 comprises a cutting knife 23 with a serration, which can be transferred from a shielded first knife position to a second knife position in which the cutting knife 23 protrudes freely. The first knife position is shown here. The adhesive tape dispenser 1 also includes a prestressed activation plate 7, the prestressed activation plate 7, when it is loaded with pressure and moved, transferring a cutting knife 23 counter to the direction of movement of the activation plate 7 into a second knife position in which the cutting knife 23 protrudes freely. The activation plate is rotatably mounted around a crossbar 8 . A swivel rod 9 allows the bearing 3 to swivel by means of the swivel arm spring 10. This swiveling mechanism will be discussed in more detail in connection with FIG figure 7 explained. The handle 2 includes handle holes 13 and is connected to the rest of the adhesive tape dispenser via a connecting piece 11 . The roll of adhesive tape 100 is contained in a semi-open cylindrical housing 12 . Bearing 3 can be rotated about a bearing axis A1, a swivel arm (cf. figure 7 ) can be pivoted about a swivel arm axis A2 and the application roller 4 can be rotated about an application roller axis A3. The bearing 3 in the form of a central bearing for a roll of adhesive tape 100 can be pivoted into such a position that a line X is defined between an application roller axis A3 of the application roller 4 and a bearing axis A1 of the bearing 3, which line runs parallel to the central orientation of the bridge sliding surface 6 (here not quite parallel yet).

figure 2 shows a section of the adhesive tape dispenser 1 from the direction of the friction bridge 5 with the bridge sliding surface 6. The friction bridge 5 comprises a deflection section 28 in the form of a deflection edge, the deflection section 28 being closer to the application roller 4 than the deflection bead 26. The receiving device 33 comprises the half-open cylindrical housing 12 in which the roll of adhesive tape 100 is housed and rotatably fixed on the bearing 3 in the form of a central bearing. The application device 38 comprises a rotatable application roller 4. A surface 16 which is inclined relative to the bridge sliding surface 6 can also be seen, these being separated from one another by the deflection section 28. A first fixing projection 14 and a second fixing projection 15 are spaced and opposite from the bridge sliding surface 6. The applicator roller 4 is fixed to a leg 17 of the semi-open cylindrical housing 12 rotatably. the Handle has been included for clarity figure 2 not reproduced. The bridge sliding surface has a sliding surface length L2 which is greater than or essentially the same as the application roller length L1 of the application roller. The application roller length L1 is usually chosen to match the width of the adhesive tape. The bridge sliding surface also has a sliding surface width B1 and the friction bridge has a bridge width B2 which is at least 25% of the sliding surface length of the bridge sliding surface L2.

figure 3 shows a section of the adhesive tape dispenser 1 from the direction of the cutting blade 23 and the pre-tensioned activation plate 7. You can see said cutting blade 23 with a serration, which can be transferred from a shielded first blade position to a second blade position in which the cutting blade 23 protrudes freely. For this purpose, the adhesive tape dispenser 1 comprises said pre-stressed activation plate 7, wherein the pre-stressed activation plate 7, when loaded with pressure and moved, transfers the cutting blade 23 to a second blade position counter to the direction of movement of the activation plate 7, in which the cutting blade 23 protrudes freely. The activation plate 7 comprises an activation plate spring 40 having a first wire 21 helically wound around a crossbar and a second wire 22 helically wound around a crossbar, the first and second wires 21, 22 being integrally connected by a bracket 18, the activation plate 7 has a recess and/or projection for fixing the bracket 18 in place. The bracket is shown in phantom since it is actually covered by the activation plate 7. The activation plate 7 comprises a first and second reinforcement element 19, 20 and a recess 36 for the bracket 18. Between the cutting knife 23 and the applicator roller 4 there is an end sliding surface/end abutment surface 24 which is held by legs 17 of the semi-open cylindrical housing.

figure 4 shows the friction bridge 5 with the bridge sliding surface 6 and a deflection bead 26 as well as a deflection section 28 in the form of a deflection edge. In this embodiment, the bridge sliding surface 6 extends from the deflection bead 26 to the deflection section 28. A first stiffening leg 30 comprises a first mechanical fixing element 29 and a second stiffening leg 32 comprises a second mechanical fixing element 31. A surface 16 inclined relative to the bridge sliding surface 6 is formed by the deflection section 28 delimited. The friction bridge 5 comprises a rounded contact bead 41 for receiving the adhesive tape section and a concave receiving curvature 27 in order to prevent frictional contact with the application roller 4 . The roll of tape preferably presses on the contact bead 41. The deflection bead 26 and, in a preferred embodiment, also the bridge sliding surface 6 make contact with the adhesive tape, which results in improved adhesion of the adhesive tape to the non-adhesive side.

figure 5 shows a schematic view of an alternative embodiment of the adhesive tape dispenser 1. Here, the handle 2 has a longitudinal axis 34 in the form of a radial handle, with the longitudinal axis 34 and the application roller 4 being located on opposite sides of an intermediate plane 35, with the intermediate plane 35 being parallel to the longitudinal axis 34 is arranged and the bearing axis R of the bearing 3 is in the form of a central bearing in the first bearing position in the intermediate plane 35 . The position of the bridge sliding surface 6, the activation plate 7 and the bracket 18 can also be seen. Here the application roller (4) and the bearing (3) are on the same side with respect to the longitudinal axis (34) when a cross section is viewed orthogonally to the bearing axis will.

figure 6 shows a perspective view behind the activation plate 7. The activation plate 7 comprises an activation plate spring 40 with a first wire 21 wound helically around a crossbar and a second wire 22 wound helically around a crossbar, the first and second wires 21, 22 being connected by a Brackets 18 are connected in one piece, with the activation plate 7 having a recess and/or projection for fixing the bracket 18 in place. The activation plate 7 comprises a first and second reinforcement element 19, 20 and a projection 37 for the bracket 18.

figure 7 shows a section of the receiving device 33 with a pivotable and rotatable bearing 3 in the first storage position. The bearing 3 in the form of a central bearing has a square design here and can rotate about its own axis. It is fixed to a swivel arm 39 , the swivel arm 39 being able to swivel about the swivel rod 9 . The swing arm 39 is biased by the swing arm spring 10 so that it moves toward the bridge sliding surface 6 automatically. The handle 2 can also be seen. The swivel arm 39 is prestressed in such a way that when it is released, it or the bearing 3 automatically swivels in the direction R of the bridge sliding surface, ie to the second bearing position.

figure 8 shows one to figure 4 Similar friction bridge 5, in which case the deflection bead 26 is formed by a deflection pin. Incidentally, the design of the figure 8 structurally identical to figure 4 .

figure 9 shows part of the figure 4 namely the end of the friction bridge with the deflection bead 26 and the rounded contact bead 41. The rounded contact bead 41 has in cross-section a rounded region with a first point P1 whose osculating circle has a first mean osculating circle radius R1. In cross section, the deflection bead 26 has a rounded area with a second point P2, the osculating circle of which has a second mean osculating circle radius R2. The second average oscillating circle radius R1 is many times smaller than the first average osculating circle radius R2.

figure 10 shows one to figure 4 Similar friction bridge 5, in which case the deflection bead 26 is spaced apart from the bridge sliding surface 6 by a bridge recess 42. In principle, the deflection bead 26 can also be configured as a deflection pin that is obstructed by the bridge recess 42 (not shown here). Incidentally, the design of the figure 8 structurally identical to figure 4 .

figure 11 shows an embodiment of the friction bridge 5 with the bridge sliding surface 6 and a deflection bead 26 and a deflection section 28. In this embodiment, the bridge sliding surface 6 extends from the deflection bead 26 to the deflection section 28. A surface 16 inclined in relation to the bridge sliding surface 6 can also be seen, where these are separated from one another by the deflection section 28 . A first and second fixing element 29, 31 are provided. The deflection bead 26 comprises a transverse elevation 43 in the form of a transverse curvature with a transverse elevation maximum 45 and two transverse elevation minima 44. Said transverse elevation 43 extends between a first friction bridge side 46 and an opposite second friction bridge side 47. The transverse elevation maximum 45 is spaced from the friction bridge sides 46, 47 and although in the middle between said friction bridge sides.

figure 12 again shows the design of the friction bridge 5 from a different perspective. Regarding the reference numerals to the figure 11 referred. A concave receiving curvature 27 of the friction bridge 5 is also clearly visible here in order to avoid friction on the application roller (cf. figure 1 ) to prevent.

figure 13 shows a to figure 12 analogous design of the friction bridge with a rounded contact bead 26, but without a transverse elevation. When a section of adhesive tape slides over this contact bead 26, all areas of the adhesive tape are in contact. It has been found that such configurations are somewhat louder than the embodiments in which the edge of the adhesive tape is exposed.

figure 14 shows a further embodiment of the friction bridge 5 with the bridge sliding surface 6 and a deflection bead 26 and a deflection section 28. Apart from the fact that this embodiment of the friction bridge 5 is somewhat longer than the embodiment of the Figure 11 and 12 is, the structure is identical and only the viewing angle is different. In this embodiment, the bridge sliding surface 6 extends from the deflection bead 26 to the deflection section 28. A surface 16 inclined relative to the bridge sliding surface 6 can also be seen, these being separated from one another by the deflection section 28. The deflection bead 26 comprises a transverse elevation 43 with a transverse elevation maximum 45 and two transverse elevation minima 44. Said transverse elevation 43 extends between a first friction bridge side 46 and an opposite second friction bridge side 47. The transverse elevation maximum 45 is spaced apart from the friction bridge sides 46, 47 and is centered between said friction bridge sides. It is also shown how the adhesive tape section 103 rests against the deflection bead 26 , the adhesive tape edges 105 being spaced from the deflection bead 26 . The contact surface length L3 of the deflection contact surface 48 of the deflection bead 26 is less than the adhesive tape width B3 of the adhesive tape section. The adhesive tape width B3 corresponds to the length of the broken line of the adhesive tape section 103 in figure 14 .

figure 15 shows a to figure 14 analogous view, the transverse elevation 43 being configured as a polygonal transverse elevation. But here, too, the deflection bead 26 includes a transverse elevation maximum 45 and two transverse elevation minima 44, said transverse elevation 43 extending between a first friction bridge side 46 and an opposite second friction bridge side 47. The transverse peak 45 is spaced from the friction bridge faces 46, 47, midway between said friction bridge faces. In this embodiment, the transverse elevation has a cross-section in which it has two legs which comprise transverse elevation minima and a linear connecting line between the legs which comprises the transverse elevation maximum. It is also shown how the adhesive tape section 103 rests against the deflection bead 26 , the adhesive tape edges 105 being spaced from the deflection bead 26 .

figure 16 shows a further embodiment of the friction bridge 5 with the bridge sliding surface 6 and a deflection bead 26 and a deflection section 28. The deflection bead 26 extends between the friction bridge sides 46, 47. The bridge sliding surface 6 extends from the deflection bead 26 to the deflection section 28. It can also be seen a surface 16 which is inclined relative to the bridge sliding surface 6, these being separated from one another by the deflection section 28. The deflection bead 26 has no transverse elevation 43, has however, a deflection contact surface 48 with a shorter contact surface length L3 than the adhesive tape width B3 of the adhesive tape section 103, the adhesive tape edges 105 being spaced apart from the friction bridge 5.

figure 17 shows a schematic view of some configurations of the friction bridge 5. The transverse elevation has at least one cross section Q, which extends orthogonally to the deflection sliding surface and which at the same time extends parallel to the bridge sliding surface. It can also be seen how the adhesive tape section 103 is guided around the friction bridge 5 and is deflected at the deflection bead 26 with a transverse elevation 43 .

figure 18 shows some configurations of the cross-sections Q of the transverse elevation 43. The cross-sections through the remaining friction bridge 5un only concern the contour of the transverse elevation 43 in a cross-section as in FIG figure 17 shown. Figure 18a ) relates to the cross-section Q of a transverse curvature with a transverse elevation maximum 45 and two transverse elevation minima 44. Figure 18b ) relates to the cross-section Q of a polygonal transverse elevation with a transverse elevation maximum 45 and two transverse elevation minima 44. Figure 18c ) relates to the cross section Q of a further embodiment of a transverse curvature with a transverse elevation maximum 45 and two transverse elevation minima 44. In each of the cross sections Q, the transverse elevation is visible as a raised and/or curved contour.

figure 19 shows a further embodiment of the friction bridge with a rounded contact bead 26 and a transverse elevation. The inclined surface 16 adjoins the bridge sliding surface 6 . A receiving bulge 27 is encompassed by the friction bridge. A first and second mechanical fixing element 29, 31 can also be seen as optional components.

The features of the invention disclosed in the above description, the claims and the drawings can be essential both individually and in any combination for the realization of the invention in its various embodiments.

Reference List

1

tape dispenser

2

handle

3

Bearing for a roll of tape

4

application roller

5

friction bridge

6

bridge sliding surface

7

activation plate

8th

Crossbar for activation plate

9

Swivel rod for pivoting the bearing

10

swivel arm spring

11

Connector between handle and remaining tape dispenser

12

semi-open cylindrical case for tape roll

13

finger holes

14

first fixation overhang

15

second fixation overhang

16

inclined surface

17

Legs of the semi-open cylindrical housing for the rotatable fixation of the application roller

18

hanger

19

first reinforcement element

20

second reinforcement element

21

first wire

22

second wire

23

cutting knife

24

end sliding surface

25

Mounting block for cutting knives

26

deflection bead

27

pickup camber

28

Deflection section, in particular deflection edge

29

first mechanical fixation element

30

first stiffening leg

31

second mechanical fixation element

32

second stiffening leg

33

recording device

34

Longitudinal axis or grip axis

35

intermediate level

36

recess

37

cantilever

38

application device

39

swivel arm

40

activation plate spring

41

rounded contact bead

42

bridge recess

43

transverse elevation, in particular transverse curvature,

44

cross elevation minima

45

cross elevation maximum

46

first friction bridge side

47

second friction bridge side

48

deflection contact surface

100

tape roll

102

adhesive tape side

103

tape section

104

non-adhesive tape side

105

tape edges

A1

bearing axis

A2

swivel arm axis

A3

application roller axis

L1

Application roller length of the application roller

L2

Sliding surface length of the bridge sliding surface

L3

Contact surface length of the deflection contact surface

B1

Glide width of the bridge glide surface

B2

Bridge width of the friction bridge

B3

Tape width of the tape

P1

first point

p2

second point

R

Direction to the bridge slip surface

R1

first osculating circle radius

R2

second osculating radius

X

line

Q

Cross section through the deflection bead

Claims (18)

1. An adhesive tape dispenser (1), comprising

   a handle (2), in particular in the form of a radial handle or tangential handle, a receiving device (33) having a bearing (3) for a roll (100) of adhesive tape,

   an application device (38) having an application roller (4),

   characterized in that the adhesive tape dispenser further comprises:

   a rotationally fixed friction bridge (5) having a bridge sliding surface (6) and a deflection bead (26),

   the adhesive tape dispenser (1) being adapted and arranged such that, when being unrolled, an adhesive tape portion (103) of a roll (100) of adhesive tape present on the bearing slides or is slidable over the deflection bead (26) before it meets the application device (38).
2. The adhesive tape dispenser (1) according to Claim 1, comprising

   a handle (2) in the form of a radial handle having a longitudinal axis (34),

   a receiving device (33) having an in particular pivotable and/or rotatable bearing (3) for a roll (100) of adhesive tape, preferably in the form of a central bearing,

   an application device (38) having an in particular rotatable application roller (4), comprising a rotationally fixed friction bridge (5) having a bridge sliding surface (6) and

   a deflection bead (26), wherein the adhesive tape dispenser (1) is in particular adapted such that, when being unrolled, an adhesive tape portion (103) of a roll (100) of adhesive tape slides or is slidable over the deflection bead (26), in particular the raised transverse portion (43) and/or the deflection contact surface (48), and in particular also over the bridge sliding surface (6), before it meets the application device,

   wherein the longitudinal axis (34) and the application roller (4) are positioned on opposite sides of an intermediate plane (35), wherein the intermediate plane (35) is disposed in parallel with the longitudinal axis (34) and the bearing axis (A1) of the bearing (3), in particular in a first bearing position, is disposed in the intermediate plane, and/or

   wherein the application roller (4) and the bearing (3) are positioned on the same side with respect to the longitudinal axis (34) when viewed in a cross section orthogonal to the bearing axis (A1).
3. The adhesive tape dispenser (1) according to Claim 1 or 2, characterized in that the friction bridge (5) or at least the bridge sliding surface (6) and/or the deflection bead (26), in particular the bridge sliding surface (6) and the deflection bead (26), comprise or consist of a plastics material which is preferably selected from the group consisting of polyamide, polycarbonate, acrylonitrile butadiene styrene, styrene acrylonitrile copolymer, polyacetals, in particular polyoxymethylene, polyurethane, polyketone, polyester urethane rubber, polyetherketone, polymethacrylate and any mixtures thereof, in particular polyoxymethylene.
4. The adhesive tape dispenser (1) according to any one of the preceding claims, further comprising a cutting device, in particular a cutting blade (23), in particular with teeth, which is able to be moved out of a shielded first cutting position, in particular a blade position, into a second cutting position, in particular a blade position, in which the cutting device, in particular the cutting blade (23), freely protrudes.
5. The adhesive tape dispenser (1) according to Claim 4, further comprising, in particular adjacently to a gap through which the cutting device, in particular the blade, is guidable, an end sliding surface for an adhesive tape portion, in particular comprising a metal surface.
6. The adhesive tape dispenser (1) according to any one of the preceding claims, characterized in that
   the adhesive tape dispenser (1) is adapted for an adhesive tape having an adhesive tape width and the deflection bead (26) comprises a deflection contact surface (48) which is in particular less wide than the adhesive tape width, the adhesive tape portion of the adhesive tape having adhesive tape edges and, when the adhesive tape dispenser (1) is used in a generic manner, is spaced apart from the deflection contact surface (48), in particular spaced apart from the deflection bead (26), at least in portions by its adhesive tape edges when sliding over the deflection bead.
7. The adhesive tape dispenser (1) according to any one of the preceding claims, characterized in that
   the adhesive tape dispenser (1) is adapted for an adhesive tape having an adhesive tape width of at least 4.7 cm and the deflection contact surface (48) has a contact surface length of less than 4.3 cm.
8. The adhesive tape dispenser (1) according to any one of the preceding claims, characterized in that
   the deflection bead (26) comprises a raised transverse portion (43), the raised transverse portion (43) in particular being adapted and arranged to position the adhesive tape portion (103) at a distance from the deflection bead (26) at its periphery, while the adhesive tape portion (103) contacts the raised transverse portion (43) away from the adhesive tape edges.
9. The adhesive tape dispenser (1) according to any one of the preceding claims, characterized in that

   the bearing (3) for a roll (100) of adhesive tape is pivotable between a first and a second bearing position, the bearing (3) being fastened to a pivot arm (39) which is connected to a preloaded pivot arm spring (10), the pivot arm spring (10) urging the pivot arm (39) and the bearing (3) towards the second bearing position,

   the bearing (3) being closer to the deflection bead (26) of the friction bridge (5) in the second bearing position than in the first bearing position.
10. The adhesive tape dispenser (1) according to any one of the preceding claims, characterized in that
    the handle (2) has a longitudinal axis (34), the longitudinal axis (34) and the application roller (4) being positioned on opposite sides of an intermediate plane (35), the intermediate plane (35) being disposed in parallel with the longitudinal axis (34) and the bearing axis (A1) of the bearing (3) being in the first bearing position within the intermediate plane.
11. The adhesive tape dispenser (1) according to any one of the preceding claims, characterized in that
    the bearing (3) for a roll (100) of adhesive tape is pivotable into such a position that a line (X) connecting an application roller axis (A3) of the application roller and a bearing axis (A1) of the bearing (3) is definable which extends substantially in parallel with at least one portion of the bridge sliding surface (6).
12. The adhesive tape dispenser (1) according to any of Claims 4 to 11, characterized in that
    the adhesive tape dispenser (1) comprises a preloaded activation device, in particular an activation plate (7), the preloaded activation device, in particular the activation plate (7), moving the cutting device, in particular the cutting blade (23), counter to the movement direction of the activation plate (7) into a second blade position in which the cutting device, in particular the cutting blade (23), freely protrudes at least in portions, when said activation device or plate is subjected to pressure and/or is moved.
13. The adhesive tape dispenser (1) according to any of Claims 4 to 12, characterized in that
    the adhesive tape dispenser (1) comprises an activation plate spring having a first wire (21) wound in a helical shape around a transverse rod and a second wire (22) wound in a helical shape around a transverse rod, the first and the second wire (21, 22) being integrally connected by a bracket (18), the activation device (7), in particular the activation plate, having a recess and/or a projection for fixing the bracket (18).
14. The adhesive tape dispenser (1) according to any one of the preceding claims, characterized in that
    the friction bridge (5) is securely connected to the rest of the adhesive tape dispenser (1) at at least three, in particular at least four, attachment points.
15. The adhesive tape dispenser (1) according to any one of the preceding claims, characterized in that
    the friction bridge (5) comprises a deflection portion (28), the deflection portion (28) being closer to the application roller (4) than the deflection bead (26), the adhesive tape dispenser (1) in particular being constructed such that, when being unrolled, an adhesive tape portion (103) of a roll (100) of adhesive tape slides over the deflection portion (28) and is deflected there and/or separates from the friction bridge (5).
16. The adhesive tape dispenser (1) according to any one of the preceding claims, characterized in that

    the adhesive tape dispenser (1) comprises a roll (100) of adhesive tape and an adhesive tape portion (103) that has been unrolled from the roll (100) of adhesive tape and is connected to the roll (100) of adhesive tape,

    the adhesive tape portion (103) having a tacky adhesive tape side (102) and an opposite, non-tacky adhesive tape side (104),

    a portion of the opposite, non-tacky adhesive tape side (104) abutting the deflection bead, in particular the raised transverse portion (43) and/or the deflection contact surface (48), and optionally the bridge sliding surface (6) and/or the application roller (4).
17. A method for the noise-reduced application of adhesive tape using an adhesive tape dispenser (1) according to any one of the preceding claims, characterized in that, during the application, an adhesive tape portion (103) is guided around a deflection bead (26) and the adhesive tape edges (105) are positioned at a distance from said deflection bead at least in regions while the adhesive tape portion rests centrally on the deflection bead (26).
18. Use of the adhesive tape dispenser according to any of Claims 1 to 16 for the noise-reduced application of adhesive tape using an adhesive tape dispenser.

Images