MXPA00010102A - Hand-held apparatus for transferring a film from a carrier tape onto a substrate - Google Patents

Abstract

The invention relates to a hand-held apparatus for transferring a film from a carrier tape (8) onto a substrate. Said apparatus comprises a housing (1, 18) in which are arranged a supply reel (4) for the carrier tape (8) coated with the film, a wind-up reel (5) which is radially displaced in relation to the supply reel and receives the carrier tape (8) separated from the film, as well as an applicator (6, 22) which deflects the carrier tape, protrudes from the housing (1) and presents to the substrate that side of the carrier tape which is coated with the film. A drive system (13, 14, 15) with a slide coupling is positioned between the supply reel (4) and the wind-up reel (5) and configured as a friction drive. When the supply reel (5) is driven by the withdrawal of the carrier tape (8) the drive system drives the wind-up reel (5) at such a speed that the carrier tape always remains taut. To improve torque transmission between the reels (4, 5) the reel bodies (4, 5) each have at least one disk-like reel wall (13, 15). The reel wall (13) of the one reel body (4) is fitted with slots and the reel wall (15) of the other reel body (5) engages the slot (14) and is held in place therein.

Description

MANUAL DEVICE TO TRANSFER A MOVIE FROM A SUPPORT STRIP TO A SUBSTRATE • DESCRIPTION PE I? NVENCI N 5 The invention relates to a manual device for transferring a film of, for example, an adhesive, covered or colored material from a support strip to a substrate, according to the precharacterising part of claim 1. It is known such a manual device, for example, of DE-C2-42 20 10 712 presented by the applicants, in which two spool bodies comprise a supply spool and a take-up spool are in direct frictional contact with each other. The driving connection and the sliding coupling are formed as one piece by small and simple structural parts, so that no additional parts are required for the driving connection and the sliding coupling, and simple and inexpensive production is obtained. The coils of the hand-held device illustrated in DE-C2-4220712 each have a cube part from which lateral spool walls are projected in the form of round discs, between which a support strip is picked up and rolled up. The drive connection together with the integrated sliding coupling are formed by At least one pair of frictional surfaces that directly engage each other, surfaces which are formed on mutually opposite inner and outer sides of the disc-shaped spool walls. In order to ensure the rotational impulse between the reels by virtue of the friction acting on the frictional surfaces, a compression stress is required in order to force the frictional surfaces against the other. Alternatively, the frictional pressure can also be generated if at least one of the two frictional surfaces is previously tensioned elastically in the transverse direction and is urged against the other frictional surface. Furthermore, DE-U1-94 07 305 discloses a manual device of the type mentioned in the introduction in which the driving connection between the spool of The supply and the pick-up reel is formed by a friction wheel element disposed in the radial direction in a flexible and coaxial manner in relation to the take-up reel, a friction wheel element which is supported via a circumferential wheel outer surface against a circumferential surface suction of a counter-coaxially arranged in relation to the supply spool, in order to generate a frictional force transfer and application region. This device ^ manual is designed to allow in a simple way the maintenance of a optimum tension of the support strip with very narrow tolerance intervals. Based on the prior art mentioned above, it is an object of the invention to further improve by the frictional pulse, a manual device of the type mentioned in the introduction when considering its driving connection together with the integrated sliding coupling. This object is obtained by the features of claim 1. In the driving connection formed according to the invention together with the integrated sliding coupling, no pre-stressing is necessary in particular in order to ensure frictional contact between the spools , since the reel wall of the pick-up reel is held in the groove in the reel wall of the supply reel 15 and therefore it is certain that there is an even transfer of the torque at all times. In a further development of the invention, the supply reel, the pick-up reel and the application device can be integrated into a transfer cartridge that can be inserted into the housing preferably via a corresponding insertion opening in the rear end of the cartridge. accommodation. It is further advantageous if the pick-up reel has a tensioning device for tensioning the support strip, in which a connection for the pick-up reel can be provided with an inverse block for the purpose ™ to prevent rotation of the pick-up reel in the unwinding direction of the strip support. Further modifications and developments of the present invention are the subject of the additional dependent claims. The invention is illustrated in greater detail in the following, with the aid of preferred embodiments and with reference to the accompanying drawings, in which: Figure 1 is a sectional view of a first embodiment of a manual device in accordance with the present invention, along line II of figure 2; Figure 2 is a sectional view of the handheld device of Figure 1 along line II-II of Figure 1; Figure 3 is a sectional view of a first assembly step of (• a second embodiment of a handheld device, in accordance with the present invention; and Figure 4 is a sectional view of a second stage of assembling the device. FIGURE 3. A first embodiment of a manual device for transferring a film from a support strip to a substrate is described, first of all, in greater detail with the help of the two section representations shown in the figures 10 1 and 2. The hand-held device that is provided with a particular application strip for transferring films of a covering material or with color, or both, to transfer an adhesive film to a pressure roller which is preferably used instead of the application strip The handheld device according to the first embodiment substantially comprises a housing 1 consisting of a lower housing side 2 and n upper housing side 3, a supply spool 4 rotatably mounted in the housing 1, a pick-up reel 5 mounted rotatably in the housing 1, and an application device 6 in the form of an application strip projecting from the housing 1 through an outlet opening 7 in the housing 1 in its front lower corner region (use position). A support strip 8 coated on one side with a film is in turn guided from the supply reel 4, around the application strip 6 to the take-up reel 5. All the parts of the handheld device described so far and which also P will be described consist of plastic materials and can be manufactured, with the exception of the support strip 8, by injection molding. The two spool bodies 4 and 5 are disposed radially offset one in relation to the other, and, in each case, are rotatably mounted on a hollow pivot 9 and 10 provided on the lower side 2 of the housing. In this respect, at least the supply reel 4 bears against a projection 11 which is concentric to the pivot 9 and around the latter, so that the reels 4, 5 are placed in the housing 1 in such a way that the strip 8 of this support runs exactly through the middle part of the housing 1 and at a height of the application strip 6 that is still to be described. The upper side 3 of the housing has two bolts 16, 17 which can be pressed into the recesses of the pivots 9, 10 of the lower side 2 of the housing and thus firmly close the housing 1 of the manual device. • M The supply reel 4 is provided at its upper axial ends and in each case with a spool wall 12, 13 formed preferably as a piece and in the form of a disk. The lower spool wall 13 is provided with a groove, the depth of the spline 14 is approximately 5 mm and the width of the spline 14 is approximately 1 mm. The diameter of the upper spool wall 12 is slightly smaller than the diameter of the lower spool wall 13, whereby a assembly space. The support strip 8 is guided between the two spool walls 12, 13, the supply spool 4 being capable of being sliced to a larger external diameter of the lower spool wall 13. A disc-shaped reel wall 15, preferably formed as a piece, is likewise mounted on the lower axial end of the reel 5 of , the outer diameter of this spool wall 15 is substantially smaller than the outer diameter of the spool walls 12, 13 of the supply spool. The thickness of the spool wall 15, the outer diameter of the spool walls 13 and 15 and the mutual interspace of the two spools 4 and 5 are dimensioned so that the spool wall 15 can be engaged in the spline 14 of the spool 15. wall 13 of reel. In this connection, the thickness of the reel wall 15 of the take-up reel 5 is very slightly greater than the width of the spline 14 of the supply reel 4, and the surfaces of the reel wall 15 of the take-up reel 5, additionally , they can become rough, so that the two spool bodies 4 and 5 are in direct frictional contact with each other. The frictional rotational movement generated in this way between the supply reel 4 and the pick-up reel 5 ensures, through a corresponding torsional moment transfer, an impulse and sliding action, whose effect is that the reel 5 of pickup at all times is driven at a rotational speed so that the support strip 8 is always slightly tensioned and is not tear. The conformation described above of the driving connection 13, 14 and 15 together with the frictional driver has the advantage, compared to the prior art, that it is not necessary to pre-tension the elements in frictional contact with each other.

As the spool wall 15 is clamped in the spline 14 of the spool wall 13, in this way a uniform frictional force is ensured at all times between reels 4 and 5. Í) The application strip 6 has at its localized end in accommodation 1, a bolt 18 which is polygonal, for example square in its cross section, and which is adapted in a non-rotational manner in the corresponding recesses 19 and 20 in the lower side 2 of the housing or the upper side 3 of the housing. The application end of the application strip 6 is preferably rigidly connected to the bolt 18, the application end itself consists of a deformable and soft plastic material. Alternatively, the application tip can also be formed to be rigid and connected by means of an elastic intermediate piece to the bolt 18. The second embodiment of a hand-held device according to the present invention is described in more detail below. next with the help of two mounts the drawing of Figures 3 and 4. In contrast to the first embodiment, the handheld device consists substantially of a housing 18 into which a transfer cartridge 19 can be inserted from the rear through the corresponding insertion opening 24. The transfer cartridge 19 consists of a support plate 20 on the which the two pivots 9 and 10 are formed, preferably as a piece, to receive the supply reel 4 and the take-up reel 5. The two reels 4, 5 are in principle formed as in the first embodiment described above, and in particular have the same driving connection 13, 14, 15 together with an integrated sliding coupling, | produced by the frictional impeller. The modality of figures 3 and 4 is designed to the transfer of an adhesive film from the support strip 8 to a substrate, and the transfer cartridge 19 therefore contains a pressure roller 22 rotatably mounted instead of the application strip 6 at its front end, the rotational axis of the pressure roller is accommodated in a corresponding receptacle-shaped receptacle 21. As illustrated in Figure 3, the supply reel 4 and the pick-up reel 5 are mounted together on the two pivots 9, 10 and are coupled with a projection 27 which moves on the pivot 9 for the supply reel 4 . As illustrated in Figure 4, the transfer cartridge 19 together with the two reels 4, 5 and the pressure roller 22 are subsequently inserted from the rear in the housing 18 through a corresponding insertion opening 24 in the housing 18. The transfer vv 'cartridge is inserted into this connection into the housing 18 until the roller 22 of pressure is projected from an outlet opening 23 in the front end of the housing 18 and simultaneously the insertion opening 24 in the rear end of the housing 18 is closed by a wall 25 formed in the support plate 20 of the transfer cartridge 19 in this position of use, the transfer cartridge 19 is coupled to a detent device (not shown) in the housing 18. In order to replace the transfer cartridge 19, the transfer cartridge 19 can be released from the coupling device simply by applying a pulling force or additionally by actuating a decoupling device (which is also not shown). A groove 26 running in the radial direction is also provided at the upper axial end of the pick-up reel 5. When the cartridge 19 is inserted When the transfer is carried out, this slot 26 is freely accessible to the user from the outside via a corresponding opening in the housing 18. By means of this slot 26, the pick-up reel 5 can be externally rotated by the user in the pick-up direction of the the support strip 8 and the support strip 8 in this way can be manually tensioned if necessary. In order to avoid rotation of the reel 5 of In the reverse direction and thus uncoiling (unwinding) of the support strip 8 of the take-up reel 5, an inverse blockage can be provided on the take-up reel 5 and the associated pivot 10. Such reverse blocking can be formed, for example, from a toothed section having a geometry of saw teeth that rotate externally on the pivot 10, and a corresponding toothed section that rotates internally in the body 5 of the spool, this last toothed section engages with the toothed section of the pivot 10. In the second embodiment of the hand-held device, an application strip 6 can obviously also be used instead of the pressure roller 22, with in order to provide the manual device with a correction strip 8. Alternatively, in the First, it is also possible to provide a pick-up reel 5 with a tensioning device 26.

] Reference List 1 Accommodation 2 Lower side of the housing 3 Upper side of the housing 4 Supply reel 5 Pickup reel 6 Application device 7 Outlet opening 8 Support strip 9 Pivot 10 Pivot 11 Projection 12 Reel wall 13 Reel wall 14 Strip 15 Reel wall 16 Bolt 17 Bolt 18 Housing 19 Transfer cartridge 20 Support plate 21 Receptacle 22 Pressure roller 23 Output opening 24 Insertion opening 25 Wall 26 Slot 27 Projection

Claims (5)

1. A manual device for transferring a film from a support strip to a substrate, with a housing with which a supply reel is placed 5 for the support strip coated with the film and a pick-up spool radially offset with respect to the supply spool to receive the support strip separated from the film, and an application device that bends to the support strip, which device It projects from the housing and presents the side of the support strip coated with the film to the substrate, where, between the supply reel and the film reel. 10, a drive connection is formed together with a sliding coupling by a friction impeller, wherein the supply spool is driven by removing the support strip, the driving connection drives the pick-up reel at a rotational speed such that the The support strip always remains tensioned, and wherein the bodies of the reel in each case have at least one reel wall in the form of 15 disc, characterized in that the reel wall of a reel body is formed with a groove in the reel wall of the other reel body that engages in the groove.

2. The manual device according to claim 1, characterized in that the coupling reel wall has at least in the region 20 coupling a rough surface.

3. The manual device according to one of the preceding claims, characterized in that the supply reel, the take-up reel and the application device are provided in a transfer cartridge.

4. The manual device according to claim 3, characterized in that the transfer cartridge can be inserted from the outside in the housing through a corresponding insertion opening.

5. The manual device, characterized in that it is in accordance with claim 4.