MXPA00007300A - Device for transferring a film from a carrier band onto a substrate - Google Patents

Abstract

Arranged inside a housing (33) of the inventive device (1) are a supply spool (2) for a carrier band (5) coated with the film (4), a winding spool (3) for accommodating the carrier band (5) separated from the film (4), and an application device (6) which diverts the carrier band (5). The application device (6) protrudes with an end (8) thereof, said end diverting the carrier band (5), out of the housing (33) and can pivot about the longitudinal direction of the carrier band (5) which is guided through and out of the housing (33). The carrier band (5) runs in an unsupported manner from the supply spool (2) to the application device (6). Despite the pivotability of the application device, there is virtually no risk of the film applied on the carrier band from being damaged or from being prematurely detached from the carrier band.

Description

DEVICE FOR TRANSFERRING A FILM ON A SUBSTRATE FROM A CARRYING BAND The invention relates to a device for transferring a film from a carrier band onto a substrate, said device contains a body, where a supply reel for a carrier band in which the film is located, a winding reel for picking up the carrier band separated from the film and an application attachment that deflects the carrier band, whereby the application attachment protrudes from the body with its diverting end of carrier band and can turn around the longitudinal direction of the carrier band leaving the body. Various embodiments of manual devices for transferring a film from a carrier web onto a substrate are known. The film applied from the sheet-like carrier web can be an adhesive film or a coating mass for coating errors on a sheet of paper. A device according to the technique mentioned in the principle is known from EP 0 656 308 Bl. In a body there are two reels that rotate in the opposite direction, among which one is the supply reel and the other is the reel. The carrier web coated with the film is unwound from the supply spool, whereby the film is applied on the outer side of the carrier web. Starting from the supply spool at the rear of the body, the carrier band runs in a rigid band guide 5 towards the application attachment and is then deflected at a sharp wedge-shaped application edge. If the application edge is pressed onto a substrate, for example paper, and at the same time it moves in the plane of the substrate, the film is detached from the carrier web and remains adhered on the substrate. After the deflection of the carrier band at the application edge, the band returns to the body and runs in an additional rigid band guide towards the center of the winding reel, which is in the front area of the body. The band guide mentioned at the beginning for the fresh carrier belt not yet used is necessary because on the one hand the supply reel is in the rear area of the body and the winding reel is in the front area of the body and on the other hand both reels and the direction of application are approximately one after the other in a straight line. When after a given period of operation a large amount of used carrier sheet has been brought together on the reel of winding and that the part still present of carrier band - ^^^ - "- • - • -" --- • - ** * > ~ ** < -? ~ **. ^ ~ * - -.-. __i ____ "______._ ^ _______ on the supply spool has become noticeably smaller, through the mentioned band guide it is prevented that the unused carrier band rubs against the used carrier belt returning and against the coil of the winding reel and it is avoided that in this way damage to the film occurs on the carrier band as well as premature detachment of the film from the band. This is especially important in the case of what is known as connection rollers in which case a way of working without failures is required in such a way that the error coating film is fully applied, without cracks or gaps, on the substrate in order to completely cover the surface to be corrected. The drawback in the case of known adhesive rollers is the need to consider the existence of band guides in the area between the winding point of the supply spool and the application attachment. In the area of the band guides the carrier band is bent relatively strongly so that a part of the film can be detached from the carrier sheet. In the case of conventional devices equipped with a non-rotating application attachment, this drawback may not be observed or only observed negligibly in practice since the film is not subjected to any additional force. However, as in the case of the device in accordance with the ¡¡¡¡¡¡¡¡¡¡¡¡¡^ ^ ^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^. ____ EP 0 656 308 Bl, the rotation in the direction of application around the longitudinal axis presents a relatively large angle, which can reach up to 180 °, this causes a corresponding twisting of the carrier band 5 coated in the area between the first band guide and the application attachment. The double effort of the film through the guide of the band and through the twisting can cause cracks in the film layer and can cause a premature detachment of the film part of the film. carrier sheet. The object of the present invention is a device of the technique indicated in the principle that largely excludes the danger that a film applied on a carrier band may be damaged or may be detached prematurely of the carrier band. This object is achieved in accordance with the present invention through a device mentioned in the principle to the extent that the carrier band moves from the supply reel to the application attachment in a manner self-supporting. In accordance with the present invention, the need for band guide elements for the coated carrier web traveling between the supply spool and the application attachment is also eliminated. In this way, no longer the bending of the carrier band with the inconvenient consequences described caused by a band guiding element. The torsion of the carrier band that occurs due to the rotation of the application attachment is no longer sufficient to damage the film or to detach it prematurely. When the supply reel and the winding reel are arranged one after the other, it is further proposed that the supply reel be closer than the winding reel in relation to the application attachment. In this way there are numerous possible arrangements in which the carrier band moves from the supply spool to the application attachment in a self-supporting manner such that it is no longer possible for the unused carrier band to come into contact with the reel spool of the carrier spool. rolled However, the invention is not limited to the device with reels placed one after the other. Devices in which the reels are side by side are also contemplated, devices are also contemplated in which the reels are placed coaxially or almost coaxially, all these conformations are within the framework of the present invention. A particularly convenient embodiment of the device of the present invention is achieved when both the reels and the application direction are essentially in one line and the supply reel is between the winding reel and the application direction. In addition, in the case of the aforementioned embodiment, in which the supply reel and the reel of reel are placed one after the other and the supply reel is closer than the reel of reel in relation to the application attachment, it is contemplated that the film is placed on the inner side of the carrier band wound on the supply spool and that both spools rotate in the opposite direction. In this way, it is totally excluded that the film of the unused carrier band coming into contact with the used carrier band returning to the body. The rotation in the opposite direction of the reels in operation is contemplated in numerous common embodiments of manual devices of this type in which the reels are coupled indirectly to each other, that is, through cogwheels or through a friction connection. It is also possible to contemplate toothed wheels with an intermediate wheel in such a way that both spools rotate in the same direction. In this case it is irrelevant which side of the band carrier is in the film. In this case a contact of the return and return carrier band in the case of reels placed one after the other is impossible. In this way, an additional advantageous embodiment of the present invention is proposed insofar as both reels rotate in the same sense. aM_ < MllWl? _j.T¡? p? ¿i¡i¡ ^^^ _ ^^^ wg »glg¡ || ^^ An additional consideration of the film applied on the carrier band is achieved when the winding point of the carrier band a Starting from the supply spool is essentially on the rotary axis of the application attachment. In this case the unused carrier band is worn only through the inevitable torsion due to the rotation of the application attachment, however it is not further worn through the rotation of the self-bearing area to the area within the application direction. The device according to the present invention can be considered as a disposable device or else as a device that can be refilled. In the latter case, it is contemplated that each reel be arranged with a cogwheel, that the cogwheels are engaged between them for driving the reels and are placed inside the body, and that a replacement cassette is provided which can be placed inside the body which contains the two reels and the application attachment. A replacement cassette of this type is especially friendly to the environment since the amount of material used is limited. It is also possible with the same body to also use carrier bands of different width and with a different film material. Even when with the device according to the present invention a rotation of the application attachment can be made _ ..,. ". ^ - faith ._... CT,« __ ^^. .-._ > . - ___. ..... _. _ «Fai _____ fl?« - faith ---- ^ -. *.,, __ a __. ".-__.- at a fairly important angle without damaging the film on the carrier band, avoid angles of extremely large twist since the corresponding strong torsion of the carrier band can cause damage to the film. For this purpose it is contemplated that the application attachment has at least one arrest part which cooperates with a corresponding arrest part to limit the angle of rotation. The angle of rotation must be limited to a value 10 of at least 90 °, especially 135 ° and preferably 180 °. In order to prevent the film accidentally coming into contact with an unwanted substrate, for example the user's clothing, it is preferable to contemplate a part that can move at least between two positions, which in the first position covers the external end of the application attachment and in the second position releases said external end. When the device is not in use, the moving part can be moved to the first position. To use the device, the moving part can be moved to the second position. Preferably the moving part has an additional function. In this case it is built as a service element and is in a rotating relationship with the addition of application for its rotation around the rotary axis.

In a particularly preferred embodiment, the movable part is constructed in the form of tubes and at least partially surrounds the application attachment. An exemplary embodiment of the present invention will now be described with reference to the drawings. Figure 1 is a perspective view of a device according to the present invention in enlarged representation, Figure 2 is the view of Figure 1 from another FIG. 3A is a perspective view of the application attachment and the service element of the device according to FIGS. 1 and 2, where the service element covers the external end of the attachment of the device. application, Figure 3B is a view corresponding to Figure 3 in the operative position of the device, wherein the external end of the application attachment protrudes from the service element, Figure 4 is a perspective view with details of the application attachment and the service element in partially assembled state, Figure 5A is the device in perspective view and at rest, Figure 5B is a view corresponding to Figure 5A a Figure 6A is a device in perspective of the device during use with the right hand of the user, whereby the application edge that is at the outer end 5 of the application attachment is at right angles to relation to the reel axis, Figure 6B is a view corresponding to Figure 6A, where the application edge is parallel to the axis of the reels and Figure 6C is a view corresponding to Figure 6A, where the edge of application is rotated 180 ° in relation to Figure 6A and the device is operated with the left hand. In all the drawings the same reference numbers have the same meaning and therefore only explained once. The device 1 represented in figures 1 and 2, whose parts in this example consist of plastic, it has a body 33 with a first body half 22, a second body half 23, an application attachment 6 partially projecting from the body, where the protruding part of the application attachment 6 in a condition mounted is placed partially within a service element 26.

Within both body halves 22, 23 is a supply spool 2 and a winding reel 3 for a carrier band 5. On the supply spool the carrier belt 5 not yet used is wound and on the winding reel it is wound the carrier band 5 used. The carrier band 5 is coated for example with a correction film and is extracted from the supply reel 2 of the body and deflected in the application attachment 6, whereby the film 4 is applied on a substrate 32 (figures 6A to 6C ), and finally returns to the body towards the winding reel 3. The supply reel 2 consists of a ring-shaped spool core 13 with an edge wall 12. The ring-shaped spool core 13 is placed in a cube 16 consisting of elastically bendable pins 17 and held by friction with the pins 17. The pins 17 constitute a part of a tooth wheel 18, which is rotatably positioned with its hub 16 around a ring 20, the which protrudes from the inner wall of the first body half 22 in the internal part of the body 33 and is unitarily joined with the first body half 22. The winding reel 3 consists of a reel core in the form of ring 15 with an edge wall 14 which is constructed opposite to the edge wall 12 of the supply spool 12 as toothed wheel 19. The core of _a_6 * _ »- ^ - ^ ._ ^. «* _ ^. ÍSßOa.

The reel 15 of the winding reel 3 is rotatably mounted on a ring 21, which is also unitarily connected to the first body half 22 and protrudes from its inner wall towards the inside on the body 33. When mounted the gear wheels 18, 19 are positioned in such a way that their teeth engage with each other. When due to the winding of the carrier band 5 from the supply spool 2 the gear 18 rotates, the winding spool 3 also rotates, in such a way that the used carrier band is wound through a corresponding band guide on the winding reel 3. During use the winding diameter from the supply reel 2 becomes smaller and the winding diameter of the winding reel 3 becomes larger. In order for the carrier band 5 to always be under tension, without the occurrence of a higher band tension, it is necessary that the ratio between the numbers of revolutions of the supply spool 2 and of the winding reel 3 be opposite to the ratio between the diameters corresponding winding. For this purpose, between spools 2 and 3, there is a known sliding connection. It consists in the current example of a locking connection between the inner side of the ring-shaped spool core 13 and the elastic bendable pins 17 of the hub 16. The application direction 6 protrudes through an opening 34 of the body 33 and with a flat intermediate part 7 with a band guide, ending with a sharp edge on the application edge 8. The intermediate piece 7 is inside a half cylinder 9 and is firmly attached thereto. On the outer side of the hollow half-cylinder 9 there are ring-shaped connecting pieces 10 which, in the assembled state of the device 1, are in grooves 11 on the inner side of the opening 34 and which move freely in relation to these 11. Slots this form the application fitting 6 can turn relative to the body 33 around its rotary axis A-A (figures 1 and 2). The axis A-A moves essentially in the direction of displacement of the carrier band 5 in the area between the supply spool and the application edge and in the area between the application edge 8 and the winding reel 3. The rotational movement of the application attachment 6 about the axis AA is limited in both directions through the retaining parts 39 (figures 2 and 4) at internal side of both body halves 22, 23 and a projection 40 (figures 2, 3A and 3B) which is on the outer side of the hollow half-cylinders 9 and which corresponds to the retaining parts 39. In this way the angular distance between the two retaining parts 39 is selected from a magnitude such that the angle of rotation of the attachment of ___ iÉ ___ .. ^ _ ^ __ a ^. , ".., .. ... ._._, _. --- ff | ^ ^? I ffl ^ 'and' * ftafc'a? "- ^ - * application 6 may be greater than 90. In the exemplary embodiment presented, the retaining portions 39 are diametrically opposed in such a way that the application attachment 6 can be turned around an angle of 180 ° 5 and such so that the film 4 applied on the carrier band 5 can be transferred in opposite directions on the substrate 32. Within the framework of the present invention, the placement of the application attachment 6 is contemplated in a rotational manner inside the opening 34 of the body 33. The application edge 8 of the application attachment 6 always automatically adapts to the state of the substrate 32. It is also possible that the application fitting 6 is locked in the opening 34 in such a way that when turning the attachment of application 6 relative to the body 33 must overcome friction forces. For this purpose it is advantageous to contemplate a service element 26 acting in conjunction with the application attachment 6. The service element 26 has at its end a hollow cylinder means 27 which forms a complete cylinder with the hollow half-cylinder 9 of the application abutment 6 and in this way the transmission between the service element 26 and the application attachment 6 is constructed, which is especially apparent from FIGS. 3A and 3A. 3B. The element of service 26 is hollow and presents on the other side a i _ ^ ___? _____ M_? ß ___ i___ _? ___ ^ _ ^ ___ a feM & j || É aperture 28, through which the assembled state the application edge 8 of the appliqué attachment 6 can protrude. With the help of a gripping part 29 having ring-shaped ribs located on the outer side 5, the service element 26 and consequently the application fitting 6 can be easily rotated in the desired position. The hollow half-cylinder 27 of the service element 26 has, on its cutting surfaces 41, hollows 42 in which, in Assembled state, bevelled projections 43 engage on one side, which protrude from the axial cutting surfaces 44 of the hollow half-cylinder 9 of the application abutment 6. The cutting surfaces 41 of the service element 26 are chamfered at the end of the coupling. such way that the service element 26 can be easily pushed into the opening 34 of the body 33 whereby the chamfered ends of the cutting surfaces 41 slide in the chamfered projections 43 of the application attachment 6, until the projections 43 engage in the holes 42.

Since the recesses 42 in the axial direction are longer than the projections 43, the service element 26 can be displaced axially relative to the application direction 6. In this way the service element 26 can be displaced axially from the position of service, in which it is pushed in the body 33 (figures 3B ^^^^^^^^^^ g ^^ g ^^^^^^^^^^^^^^^^^^^^^^^^^^ g ^^^^^^^^^ ^ ij ^^^ * and 4) and the application edge 8 of the application abutment 6 protrudes from the opening 28, in the direction of the arrow symbol 38 (FIG. 3B) outwardly in the rest position (FIGS. 3A, 5A and 5 B), where the application edge 8 is completely located inside the service element 26. In this state the service element 26 serves as a protective cap for the application edge 8 of the application abutment 6 when the device 1 is not in use. It is thus prevented that the adhesive or correction film 4 is accidentally transferred from the carrier band 5 onto an unwanted substrate such as, for example, the user's clothing. Next, the assembly of the device will be explained. For this purpose the supply spool 2 is placed in the gear wheel 18 and fixed with the hub 16. The carrier band 5 is carried in the application attachment 6. The supply spool 2 together with the gear 18 and the winding spool 3 are fixed in the corresponding rings 20, 21 that make up the axes of turn within the first half of the body 22 and the application fitting 6 is placed in the opening 34. In this way the carrier band 5 at the winding point of the supply spool 2 and in the intermediate element 7 of the self-supporting application attachment 6, while the band carrier 5 between the attachment of application 6 and the winding reel 3 is carried in a ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^ ggj ^^^ g ^^ wjg ^^^^^^^ band guide pin 35. Finally the second body half 23 equipped on the inner side with the projecting pins 24 it is placed on the first body half 22 and thus firmly secured, in such a way that the pins 24 engage in the corresponding openings 25 and are clamped. Finally, the service element 26 is displaced on the application fitting 6 in the opening 34 of the body 33. Both body halves 22, 23 each have a recess 31 for the thumbs 36 of the user (left or right). The second body half 23 further has a through opening 30 through which the user can recognize that amount of coated carrier band 5 is still on the supply spool 2. The point at which the carrier band 5 is wound on the The supply spool (the "winding point") is essentially co-linear with the rotating shaft AA of the application attachment 6. Between the supply spool 2 and the application attachment 6 a guide is avoided in accordance with the present invention of band in such a way that the application attachment 6 can turn at a greater angle. In the exemplary embodiment presented above, the application attachment 6 can turn approximately 180 ° without difficulty in such a way that the device 1 can be used in two opposite directions, ie to the right (FIG. 6A) and to the left (FIG. 6C) and in this way can be used by both left-handed and rights. The device 1 can also be used in any position that lies between these two values, as shown for example in Figure 6B. In the exemplary embodiment presented above, the carrier band 5 is covered with the correction film 4 with which it is possible to cover handwritten or printed signs 37. The danger in the sense that the film 4 applied to the carrier band is exceptional. 5 not rub against parts inside the body 33 and thus damage is excluded in this exemplary embodiment insofar as on the one hand the supply spool 2 is very close to the application attachment 6 and on the other hand part because the carrier band 5 is wound on the supply spool 2 in such a way that the film 4 is brought to the web 13 of the supply spool 2. Naturally the invention is not limited to this mode. Within the framework of the present invention both reels 2, 3 and the application attachment 6 can be parts of a changeable cassette inserted in the body 33. In this case the sprockets 18, 19 can be placed firmly in one of the body halves of the body 33. In addition both reels 2, 3 can be placed not one after the other - as in the exemplary mode - but one next to the other, List of reference numbers 1 device 2 supply spool 3 winding reel 4 film (adhesive or correction) 5 carrier band 6 application attachment 7 intermediate piece with band guide 8 application edge 9 hollow cylinder half (of 6) 10 connecting pieces 11 grooves 12 edge wall (of 2) 13 ring-shaped spool core (of 2) 14 edge wall (of 3) 15 ring-shaped spool core (of 3) 16 hub 17 spigot 18 gear wheel 19 gear wheel 20 ring 21 ring 22 first half body 23 second half body 24 spike opening 26 service element 27 hollow cylinder half (of 26) 28 opening 29 grip part 30 through hole 31 hollow 32 substrate 33 body 34 opening (in body 33) 35 band guide pin 36 thumb 37 letters 38 arrow symbol 39 retention part 40 projection 41 axial cutting surface (from 27] 42 hollow 43 projecting, beveled 44 axial cutting surface (of 9) A-A rotating shaft A _, _ < __. > »*** ^ X-

Claims (12)

1. CLAIMS A device (1) for transferring a film (4) from a carrier band (5) onto a substrate (32), with a body (33), where a supply reel (2) for a band is placed carrier (5) covered with a film (4), a winding reel (3) for receiving the carrier band (5) separated from the film (4) and an application attachment (6) deviated from the carrier band (5) , where the application attachment (6) with its end (8) of carrier band deviation (5) protrudes from the body (33) and can turn around the longitudinal direction of the carrier band (5) that comes from the body ( 33), characterized in that the carrier band (5) moves in a self-supporting manner from the supply spool (2) towards the application attachment (6). A device according to claim 1, characterized in that the supply spool (2) and the winding reel (3) are placed one after the other and that the supply reel (2) is closer than the winding reel ( 3) of the application attachment (6). A device according to the preceding claim, characterized in that the two reels (2, 3) and the application attachment (6) are essentially in one line and the supply reel (2) is between the reel winding (3) and the application attachment (6). A device according to claim 2 or according to claim 3, characterized in that the film (4) is placed on the inside of the carrier band (5) wound on the supply reel (2) and because both reels (2, 3) rotate in the opposite direction. A device according to claim 2 or according to claim 3, characterized in that both reels (2, 3) rotate in the same direction. 6. A device according to any of the preceding claims characterized in that the winding point of the carrier band (5) from the supply spool (2) is essentially on the rotating shaft (AA) of the application attachment (6). ). A device according to any of the preceding claims, characterized in that each reel (2, 3) cooperates with a sprocket (18, 19), because the sprockets (18, 19) are interconnected for transmission connection of the reels (2, 3) and placed inside the body (33), and because a replaceable cassette that can be placed on the body (33), and containing the two reels (2, 3) and the application attachment is contemplated (6) A device according to any of the preceding claims characterized in that the application attachment (6) has at least one corresponding detent part (39) cooperating with a retainer part (40) to limit the angle of rotation. 9. A device according to any of the preceding claims characterized in that the angle of rotation is limited to a value of at least 90 °, especially 135 ° and especially 180 °. A device according to any of the preceding claims, characterized in that it has a moving part (26) that can be moved between at least two positions, said part in the first position covers the outermost end of the application attachment (6) and in the second position it releases that outermost end. 11. A device according to any of the preceding claims, characterized in that the moving part (26) is formed as a service element and is in rotatable connection with the application attachment (6) for its rotation around the 25 rotating shaft (A-A). 12. A device according to claim 10 or according to claim 11 characterized in that the moving part (26) has a tube shape and at least partially surrounds the application attachment (6). 10 fifteen twenty 25 ttktagM ^ ¡igj | ¡a¿a-¿^ »i.A.