CH711723A2 - Foil dispenser and container for a foil dispenser. - Google Patents

Abstract

The film dispenser comprises a container (1) in which a film strip (7) is mounted rolled up. Between a removal opening and a separating device for separating a portion of the film strip (7), a support element (29) between the removal opening and the separation device is arranged so movable that its supernatant height (H) with respect to a contact surface (31) by the action of a driver on a movable actuator is increased. As a result, the distance between an end portion of the film strip (7) and the contact surface is increased, so that it is easier to grasp.

Description

The invention relates to a film dispenser and a container for a film dispenser and a method for exposing the tape end of a film in a film dispenser according to the features of claims 1, 2 and 9.

It is known to use foil tapes, e.g. Roll up cling films into film rolls and store them in containers or containers which can also be used as dispensers for pulling and separating film sections. Such dispensers widely include carton or corrugated board cartons. After removal of a Erstnutzungsschutzes the outer end portion of the rolled-up foil strip is passed through a removal opening of the container. To provide a film section, the end section is grasped, pulled out of the container to the desired length and then separated. For separation, the container typically comprises a separator such as e.g. a serrated tear-off edge or a cutting blade displaceable along a guide in the longitudinal direction of the container. As a rule, the separating device is arranged on the container in such a way that it lies at a distance from the removal opening, at least when separating the withdrawn film section. This causes the new end portion of the film protrudes a piece far from the removal opening after separating a film section. The end portion is thus prevented from being pulled back inside the container. An exposed section can be easily retrieved the next time you use the foil dispenser. Depending on the design of the container, the removal opening may be e.g. be covered by a hinged lid open access side of the container. Alternatively, the removal opening may also be formed as an elongate recess on one of the container walls.

The separation device may be arranged for example on an edge of the hinged lid or one of the container walls. Alternatively, the separating device can also be arranged at a different point on the container casing, for example between two longitudinal edges on a side wall of the container.

Adhesion forces, in particular in the case of plastic films, can cause the film to adhere to the outside of the container. The adhesive properties depend on the particular film and on the surface finish of the container. This surface texture may have local differences. For example, the container surface may be completely or partially coated with a smooth lacquer layer. In particular, thin films based on polyester (PET), polypropylene (PP), polyethylene (PE) or polyvinyl chloride (PVC) adhere strongly to such surfaces. As an alternative to lacquer or color layers, the surface of the container may also comprise regions with adhesive to which a film can releasably adhere again. In this way, for example, end portions of films such as e.g. Aluminum foils are releasably held on the housing, which would otherwise act very little or no attraction forces between the container surface and the film.

The attraction or holding force is desirable on the one hand because the end portion of the film is prevented from being pulled into the container interior. Also, the film is held on the container during cutting by means of a cutting knife, so that it is not pulled along by the cutting blade during cutting.

On the other hand, this attraction causes that the end portion of the film can be taken only badly with the fingers when a portion of the film is to be removed from the roll.

From WO 2015 035 526 A1 discloses a film dispenser with a carton is known, said carton comprises on the front wall a guide gap for a cutting blade, and wherein on both sides of this guide gap, an adhesive zone is formed, to which the end portion of the film releasably adhered again , In the region of the upper edge of this front wall protrudes a support tongue, which prevents a protruding from the removal opening end portion of the film from abutting in the region of this support tongue on the front wall of the carton and adhere there. In addition, the area between the support tongue and the guide gap is formed as a non-adherent zone. The support tongue also has the effect that there rests the end portion of the film and so can be easily taken.

The support tongue is formed as a portion separated along a semicircular perforation from the adjacent part of the front wall. This section protrudes obliquely forward in its unloaded rest position on the front wall. The support tongue is at least approximately designed as an elastically resilient part of the carton. If a force acts from the front on the support tongue, it is pivoted against the elastic spring force towards the front wall. If the compressive force acting from the outside is reduced, the support tongue - driven by the elastic spring force - pivots outwards again.

The restoring force of the support tongue is dependent on the material used in the carton. Since cardboard or cardboard-like materials are generally used for the production of folding cartons, the restoring force which can be achieved by the support tongue is comparatively small. As the number of pivoting cycles increases, the restoring force is additionally reduced as a result of material fatigue.

The overlap of the support tongue by a front flap of the hinged lid causes the support tongue is pressed in the closed hinged lid inwardly toward the front wall. This results in that the deflection angle of the support tongue in the rest position, when no force from the outside acts on the support tongue, reduced. The support tongue thus can not push the resting end portion of the film even when the hinged lid is open sufficiently far out, making it difficult to grasp this end portion. Adhesive zones, which hold the film on the outer wall of the folding box and thereby also exert a compressive force on the supporting tongue, have an analogous effect.

An object of the present invention is to provide a film dispenser and a container for a film dispenser, which allow easy gripping of the end portion of the film for pulling out a film section.

This object is achieved by a film dispenser, by a container for a film dispenser and by a method for providing a tangible end section of a film according to the features of patent claims 1, 2 and 9.

A film dispenser according to the invention comprises a container in which a rolled-up film strip is mounted.

Preferably, the container is an economically producible folding box. An end portion of the film strip is guided by a removal opening of the container to the outside. This removal opening may be, in particular in the case of a folding box, the intermediate space between a hinged lid and the housing sump to which the hinged lid is pivotably articulated. Spaced apart from the removal opening, the container comprises a separation device, for example a serrated separating edge or a cutting blade displaceably mounted along a guide device. The container comprises between the removal opening and the separating device, a contact surface on which a withdrawn film section is applied when it is separated by means of the separating device from the remaining film supply. In the area of this contact surface, a support element is arranged to be movable so that its projecting beyond the contact surface projection height is variable. It acts as a spacer, which keeps the end portion of the film in this area at a distance from the contact surface. This distance corresponds to the respective projecting height of the support element and has the purpose that the film can be better taken at this point to pull a film section of the film roll. According to the invention, the container comprises an actuating element with which a deflection force can be exerted on the supporting element in order to move it into a position with a greater projection height. This is particularly advantageous when the elastic deflection force of the support element decreases or is too small to keep the Folienendabschnitt in sufficient distance from the contact surface. The supernatant height may also be affected by other effects, e.g. can be reduced by the bearing force with which the film and / or a part of a hinged lid presses the support element in the direction of the contact surface.

In a preferred embodiment of the invention, the container is formed as a carton, wherein the support member is a contact surface on the forward projecting support tongue, and wherein the actuating element corresponding to this support tongue recess on a hinged lid and / or on this hinged lid to inside excellent paragraph includes. To pull out a film section from such a container, the hinged lid is opened first. Since the support tongue and the lower edge of the recess engage behind, hooks the support tongue at this lower edge and is taken when opening the hinged lid and swung upwards or outwards. The same applies to actuators in the form of paragraphs that protrude inward on a front flap of the hinged lid.

In addition to cartons, which are preferably made of cardboard or corrugated cardboard, the invention also includes dispensers or containers made of other materials such as e.g. made of plastic or metal or of a composite material.

Alternatively, the container could also comprise two or more support elements which are arranged distributed over the length of the contact surface, wherein a corresponding actuating element is provided for each of these support elements. Support elements preferably have the shape of semicircular support tongues, but may also have other shapes. In particular, in alternative embodiments, one or more support members could extend over longer portions or over the entire length of the contact surface. The same applies to the associated actuators. Alternatively, a common actuating element could also be arranged on the container for a plurality of supporting elements, for example in the form of a front flap which extends over the entire length of a folding box and comprises a lower edge folded inwards.

Based on some figures, the invention will be described in more detail below. Show

1 shows a film dispenser with an opened container and a film roll stored therein,

2 shows the container of the film dispenser of FIG. 1.

Fig. 1 shows a film dispenser comprising an elongated container 1, in which a film roll 3 is mounted with a wound on a cylindrical core 5 foil strip 7 made of plastic. The container 1 is preferably made as a cuboid carton made of cardboard or corrugated cardboard, for example, cardboard with a wall thickness between about 0.5 mm and 1 mm. It comprises a box body with a front wall 9, a bottom 11 and a rear wall 13 and two approximately square end walls 15a, 15b, whose edge lengths are for example between 35 mm and 70 mm. The outer length L1 of the hull, for example, is in the range of 20 cm to 52 cm.

On the inner sides of the end walls 15a, 15b bearing points 17a, 17b for rotatably supporting the core 5 are arranged. At the upper edge of the rear wall 13, a hinged lid 19 is pivoted, wherein the rear longitudinal edge of a top surface 21 of the hinged lid 19 is adjacent to the rear wall 13. This hinged lid 19 is opened in the plan shown in Fig. 1 on the film dispenser, so that the interior is visible. Adjacent to the front longitudinal edge of the top surface 21, the hinged lid 19 comprises a front flap 23, which extends in the embodiment shown in FIG. 1 over the entire length of the container 1 and covers an upper portion of the front wall 9 when the container 1 is closed. Preferably, the carton in the original state includes a first use protection. This can for example be formed as a detachable along a perforation P strip 23a of the front flap 23, which is also connected to the bottom of the box in an analogous manner. In the illustration of the carton in Fig. 1, this strip is not visible, since it has already been separated. The remaining after the separation of the strip 23a visible lower edge 25 of the front flap 23 corresponds to the perforation line P.

Fig. 2 shows a punched tear of the carton of Fig. 1, in which the strip 23a is not yet separated from the front flap 23. The punched edges are shown as bold lines, folding edges as thinner lines. Broken bold lines are perforation lines P for separating contiguous areas of the carton. At the upper edge 9a of the front wall 9, a front inner wall 10 connects. It is hinged by means of a fold F, preferably by means of two in a small mutual distance of, for example, 2 mm to 5 mm to each other formed folds F on the front wall 9 folded down. The front inner wall 10 is folded into the interior of the hull.

Near the lower edge 25 of the front flap 23 comprises a punched recess 27 in the form of a gap opening extending in the longitudinal direction of the carton. In the region of the upper edge 9a, a support tongue 29 protrudes on the front wall 9 approximately in the middle of the box body. In the embodiment of the folding box shown in Fig. 1, the support tongue 29 is a section of the front wall 9 which is stamped along a semicircular line and which has been hinged to the top edge 9a on the box body and pivoted forwards. Without additional external forces acting on the support tongue 29 forces the support tongue remains in a rest position in which it protrudes on the front wall 9 to the front or with this includes a pivot angle which is greater than 0 °. Elastic material properties as well as the region of the folding box folded back to the rear adjacent the upper edge 9a of the front wall 9 contribute to the fact that the supporting tongue 29 protrudes forward on the front wall 9 in the unloaded rest position. The support tongue 29 and / or its connection to the adjacent portion of the container 1 preferably has an elasticity or at least a residual elasticity, which causes a restoring force or a restoring torque in the direction of the rest position with a deflection of the support tongue 29 from its rest position. This has the consequence that the support tongue 29 assumes a rest position without the action of external forces, in which it protrudes by a minimum projection height H at a contact surface 31 of the front wall 9. The contact surface 31 is the region of the container 1 to which a film section abuts when, after being pulled out through a removal opening of the container 1, it is separated from the film supply by means of a separating device of the film dispenser. In a film dispenser, as shown in Fig. 1, the removal opening is the gap between the hinged lid 19 and the front wall 9 of the carton. The separating device comprises a guide gap 33 and a cutting blade 35 displaceable along this guide gap 33. The guide gap 33 extends approximately halfway up the box body over a region of the front wall 9 which is slightly shorter than its overall length L1.

The recess 27 is arranged and aligned on the front flap 23, that the support tongue 29 protrudes with the hinged lid 19 closed in this recess 27, such that the lower edge of the recess 27 and the edge of the support tongue 29 undercut. This should at least apply if the front flap 23 closely abuts directly against the contact surface 31 or on an end portion of the film strip 7 resting against the contact surface 31. The lower edge of the recess is thus an abutment or catch 37 which opens the support tongue 29 the hinged lid 19 entrains and pivots outwards or upwards. As a result, the supernatant height H of the support tongue increases. The film strip 7 is pulled away in the region of its front end edge at the support tongue 29 of the contact surface 31 and can be easily taken there.

The pivotally formed on the container 1 support tongue 29 is a special embodiment of a container 1 movably formed support member. In alternative embodiments, this support element could also be a displaceably mounted on the container and / or an elastically deformable element such as e.g. a coil spring or a foam part (not shown). That surface of the support member which comes in contact with the film is preferably formed so as not to damage the film. If the support element and / or the contact surface 31 are formed in the region of the support element in such a way that the film adheres worse there than in other areas of the contact surface 31, the film strip 7 can be gripped there more easily. This can be achieved, for example, in that the contact surface 31 comprises regions covered with a lacquer or adhesive layer, but not the region with the support tongue 29. If the support tongue 29 adheres poorly to the film, it can swing back into its rest position almost unhindered. when the hinged lid 19 is opened further and the support tongue 29 is no longer retained by the lower edge of the recess 27.

The lower edge of the recess 27 is generally an actuating element which is movably guided on the container 1 and has an operative connection to the support element. In general, the actuating element comprises a driver 37, which is designed and arranged so that it acts on the support element in a direction of action when moving the actuating element or exerts a force in the direction of action on the support element, that its supernatant height H increases with respect to the contact surface 31 becomes.

In the embodiment of the film dispenser shown in Fig. 1, the actuating element of the hinged lid 19 itself, wherein the lower edge of the recess 27 of the driver 37 is or acts as such. Instead of or in addition to the lower edge of a recess 27, the actuating element or the driver 37, for example, a

Claims (9)

on the inside of the front flap 23 outstanding shoulder which engages behind the hinged lid 19 at the contact surface 31 projecting edge of the support tongue 29 (not shown). In particular, the recess 27 on the front flap 23 can be e.g. two incisions arranged in a T-shape or a corresponding punching, in which the two exposed triangular sections are bent back or folded over as carriers (not shown). Alternatively, the front flap 23 in the region of its lower edge 25 of the front flap 23 may comprise a V-shaped folded back in the cross-section strip which engages the support tongue 29 with a closed hinged lid 19 like a hook (not shown). Depending on the configuration of the container 1, the front flap 23 can extend over the entire length L1 of the container 1 or alternatively only in a section of the front flap 23 corresponding to the supporting tongue 29. Instead of only one supporting tongue 29, the container 1 can comprise a plurality of supporting elements , which are distributed over the length of the container 1 are arranged. Of course, this also applies to the corresponding driver 37 of the actuating element. In alternative embodiments of the film dispenser, the container 1 may also be formed in another way. In particular, the container 1 may be formed without hinged lid 19 and / or include a separate removal opening for Fierausziehen the film strip 7, for example, an exit slit on the front wall 9, the rear wall 13 or the top surface 21. The separator may be formed in other ways and For example, a tear-off edge with cutting teeth or a cutting device with a fastened to the carton guide rail (not shown) and along this guide rail slidable cutting blade 35. The separator may for example also be arranged in the region of a longitudinal edge of the container. In particular, the separating device can also be plugged onto an upper edge of a box body (not shown). claims 1. film dispenser comprising a container (1) in which a film strip (7) is rolled up to a film roll (3), wherein the container (1) has a removal opening for Fierausziehen an end portion of the film strip (7) and be-distances to this Removal opening comprises a separating device for separating an extracted end portion of the film strip (7), characterized in that on a contact surface (31) of the container (1) which is disposed between the removal opening and the separating device, a support member protrudes, that this support element so movable in that its supernatant height (Fl) is variable with respect to the contact surface (31), and that the container (1) comprises an actuating element movable relative to the support element and cooperating with the support element with a driver (37) adapted to apply a deflection force to exert on the support member which moves the support member so that its supernatant height (H) is increased with respect to the contact surface (31). 2. A container (1) for a film dispenser according to claim 1, wherein said container (1) is formed as a folding box with a hinged lid (19), and wherein the removal opening a space between the hinged lid (19) and a front wall (9) of the carton characterized in that the support member is a support tongue (29) pivotally hinged to the front wall (9), and in that the driver (37) of the actuation member is formed on a front flap (23) of the flip cover (19) the support tongue (29) overlaps when the hinged lid (19) is closed. 3. Container (1) according to claim 2, characterized in that the actuating element comprises a recess (27) on the front lobe (23), and that the driver (37) for the support tongue (29) has a the edge (27) delimiting edge portion of Front flap (23) includes. 4. Container (1) according to any one of claims 2 or 3, characterized in that the driver (37) comprises at least one on the inside of the front flap (23) outstanding paragraph. 5. Container (1) according to claim 4, characterized in that on the inside of the front flap (23) outstanding paragraph is a stamped and folded wing of the front flap (23). 6. Container (1) according to one of claims 2 to 5, characterized in that at least part of the contact surface (31) is formed as an adhesive zone with an adhesive layer. 7. Container (1) according to claim 6, characterized in that the support tongue (29) and / or to the support tongue (29) adjacent region of the contact surface (31) is not formed as a flash zone. 8. A container (1) according to any one of claims 2 to 7, characterized in that the support tongue (29) is elastically resilient and in an unloaded rest position, a positive supernatant height (Fl) with respect to the contact surface (31). 9. A method for providing a tangible end portion of a foil strip (7) in a foil dispenser according to claim 1, characterized in that the actuating element is moved, that the driver (37) of the actuating element is thereby brought into abutment with the support element and a deflection force on the Supporting element exerts that the support member moves due to this deflection force so that its supernatant height (Fl) with respect to the contact surface (31) is increased, whereby the distance of the end portion of the film strip (7) to the contact surface (31) increases in the region of the support element so that the foil strip (7) is easier to reach.