EP0267396B2 - Outillage pour appliquer un film adhésif - Google Patents

Outillage pour appliquer un film adhésif Download PDF

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Publication number
EP0267396B2
EP0267396B2 EP87113944A EP87113944A EP0267396B2 EP 0267396 B2 EP0267396 B2 EP 0267396B2 EP 87113944 A EP87113944 A EP 87113944A EP 87113944 A EP87113944 A EP 87113944A EP 0267396 B2 EP0267396 B2 EP 0267396B2
Authority
EP
European Patent Office
Prior art keywords
tape
applicator
supply reel
disposed
adhesive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87113944A
Other languages
German (de)
English (en)
Other versions
EP0267396A1 (fr
EP0267396B1 (fr
Inventor
Christoph Manusch
Hans Jürgen Harp
Roy Van Swieten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel Pritt Produktions GmbH
Original Assignee
Pelikan GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Pelikan GmbH filed Critical Pelikan GmbH
Priority to AT87113944T priority Critical patent/ATE54117T1/de
Publication of EP0267396A1 publication Critical patent/EP0267396A1/fr
Publication of EP0267396B1 publication Critical patent/EP0267396B1/fr
Application granted granted Critical
Publication of EP0267396B2 publication Critical patent/EP0267396B2/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/14—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a travelling band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/002—Web delivery apparatus, the web serving as support for articles, material or another web
    • B65H37/005—Hand-held apparatus
    • B65H37/007—Applicators for applying coatings, e.g. correction, colour or adhesive coatings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1788—Work traversing type and/or means applying work to wall or static structure
    • Y10T156/1795—Implement carried web supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/18—Surface bonding means and/or assembly means with handle or handgrip
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/19—Delaminating means
    • Y10T156/1978—Delaminating bending means

Definitions

  • the invention relates to a device for applying an adhesive film according to the preamble of claim 1.
  • a supply reel and a winding device are arranged side by side in a plane, similar to a tape cassette.
  • a carrier tape coated on one side with an adhesive film is wound on the supply reel.
  • the take-up device initially comparable to a tape cassette empty reel, is intended for receiving the used carrier tape. Both are arranged in a housing which has a cover, which enables the supply reel to be exchanged and the winding of the used carrier tape to be removed from the winding device.
  • An application device is attached to the outside of the housing, namely on one of its narrow sides.
  • the coated carrier tape is guided over the edge or side of the application device that points away from the housing and thus faces the substrate.
  • This application device is placed on the substrate to which the adhesive is to be applied. Due to the relative movement between the device and the substrate, usually by moving the device over the stationary substrate, the adhesive film is separated from the carrier tape, which - at the same time now free of adhesive - is wound up again by the winding device.
  • the carrier tape is guided tightly over a bar or rotatably arranged roller.
  • the supply reel and the winding device are connected to one another by a drive connection which has a slip clutch.
  • the drive connection is designed in such a way that, similar to a tape recorder, the take-up device tries to turn so quickly that it not only picks up the carrier tape drawn off from the supply reel in each operating stage, but also keeps it taut.
  • the drive connection is established, for example, by a slipping transmission that has used a belt or a spiral spring loop as the transmission element, or by gear drives in conjunction with a separate slip clutch.
  • the adhesive film tears uncontrollably .
  • the carrier tape which is further conveyed to the winding device , which in turn is inclined under certain circumstances to contaminate the tape guide devices and drive elements arranged in the interior of the housing or even to cause malfunctions up to total failure.
  • the application zone of the application device which comes into contact with the substrate to be coated has been widened on both sides to the direction of movement of the device, so that the adhesive film does not come into contact with the substrate when the device is tilted on the other hand, such a wide circulation is created that it is easily possible to keep the device untied.
  • the generic device is lifted off the substrate, whereby the user cannot control the most favorable angle of the lifting device and thus the quality of the adhesive film tear, which is perpendicular to the side edges of the applied adhesive film and, above all, straight in the tear would be optimally running, but runs more or less serrated and / or wavy in the known devices, with the further disadvantage that the start edge of the next adhesive transfer inevitably has the same, irregular edge course.
  • sharper adhesive tips usually spring back and thus form an accumulation of adhesive on the substrate, which can often reach a multiple of the remaining layer thickness of the adhesive film and which is unsightly on the surface of the object to be bonded.
  • the critical dimensions are the height and length extension of the device, seen in the direction of its movement, since these dimensions limit the usability of the device, for example for coating the inner surfaces of containers, boxes and the like.
  • the device of the type mentioned at the outset would also be desirable for the device of the type mentioned at the outset to be able to accommodate a replacement supply roll made of coated adhesive tape.
  • this is problematic because the known devices with their axes of supply spool and winding core lying essentially parallel to the horizontal do not offer any accommodation options for this purpose. Rather, a compartment or the like would have to be additionally molded onto the outside of the device to accommodate such a replacement winding, this compartment then forming a protruding projection of the housing which protrudes to the side and is always disturbing
  • the winding of the used carrier tape is removed and the empty supply reel is replaced by a full supply roll.
  • the known devices have the disadvantage that the exchange manipulations must be carried out within the housing, since, as also mentioned at the beginning, the coils, as well as the drive mechanism, are integrated into the interior of the housing and are therefore difficult to access, so that a great deal of sensitivity for the removal the empty tape reel and the empty supply reel, the insertion of the replacement reel, the correct insertion of the tape leader into the guide channels and the attachment of the tape start to the take-up device are required, especially since these devices, as tabletop devices in a compact design, allow little space for handling inside the housing.
  • the object of the invention is to eliminate these disadvantages and to improve the manageability of the device mentioned at the beginning.
  • an exact, uniform, sharp-edged adhesive application with a perfect tear-off edge should be made possible even when the device is tilted relative to the substrate.
  • the measure according to the invention ensures that when a device is canted on the substrate or if the substrate itself has an uneven surface profile, the application device can adapt to the substrate in a kind of pendulum movement, so always one over the entire length Width of the adhesive tape running, even contact pressure and thus to achieve a uniform detachment of the adhesive.
  • the elastically bendable intermediate piece can be realized in a particularly simple manner from a manufacturing point of view, namely in that the application bar is designed with a wall spring reduction similar to leaf spring.
  • the elastic mounting can also be achieved by two notches running directly above the application bar from both narrow sides over the surface to the center, similar to a wasp waist whose remaining smallest cross section is designed such that the waist width is smaller than the foot thickness of the application bar.
  • skids are arranged on both sides of the application device, which are movable relative to the application device in the direction perpendicular to the substrate plane.
  • One of the essential features of the adhesive transfer is the edge-to-edge transfer of the adhesive film to the substrate, which should be the advantage of this type of device compared to glue sticks, glue bottles and other applicators, which is due to the technically perfected cutting of the adhesive tape supply wrap in the edges running along the adhesive film is specified, but with respect to the tear, that is to say the starting and end edges running transversely to the longitudinal direction, has not yet been achieved in the desired quality in the known devices.
  • a bad tear-off edge in turn leads to an equally bad start edge of the subsequently applied adhesive strip. Tests have shown that the quality of the tear-off edge is largely dependent on the angle at which the application device is lifted off the substrate.
  • a further increase in the quality of the tear-off edge is achieved according to a further advantageous embodiment in that the application device has at least one cam which engages in a control curve of the skids.
  • the application device has at least one cam which engages in a control curve of the skids.
  • the skid can be coupled with the elastic pendulum movement of the application bar, whereby in particular the movement of the application bar can be controlled in coordination with the movement of the skids in the final phase of the adhesive application.
  • the elastic mounting of the applicator bar can be used for the elastic prestressing of the skids in the direction of the substrate.
  • skids protect the applicator bar when it is not in use by protruding over it, so that the adhesive film cannot come into contact with the surface. This also increases the ease of handling the device.
  • the cam can be snapped into the control cam in order to establish a secure but releasable connection between the skids and the application device.
  • control cam is designed such that when the skids are raised in the direction of the application device, the application device is pivoted in the direction in which the tape is pulled off. This ensures that when an adhesive transfer is initiated, the pair of runners first touches the substrate, when the device is depressed, the runners retreat while the applicator bar and thus the adhesive tape are moved obliquely by the control curve, and the adhesive tape comes into contact with the substrate.
  • control curve is designed such that when the application device is pivoted in the direction in which the tape is pulled off, the skids are also reversed in the direction of the application device, the pair of skids is moved upwards by the control curve when the device is set in motion Area of the adhesive application raised so that only the application bar with the adhesive tape then touches the substrate and the skids remain in the raised state. All of this is done without user intervention by simply placing the device and painting over the substrate.
  • the adhesive transfer is then ended, this is done by simply lifting the device, whereby the tear-off mechanism automatically takes effect, so that the pair of skids reaches the transfer level again due to the pressure relief, is placed on the substrate and, with further relief, the application bar is inclined by the curve control from the substrate is guided away, whereby it is achieved that the adhesive film is torn off, regardless of the individual handling of the user, always in the once determined, optimal angular range defined by the shape of the control curves.
  • Another advantage of the design of the skids is the alignment of the device when placing the substrate. The skids are effective as a cantilever and thus facilitate the pre-orientation, while they are only carried off the substrate during the subsequent adhesive transfer, i.e. after the pre-orientation has been carried out.
  • an embodiment has proven particularly useful in which the supply reel, the take-up reel, the application device and the drive connection are arranged on a base plate.
  • the skids are arranged on a lever arm articulated on the base plate.
  • a base plate designed in this way can be pivotally arranged on a housing without great technical effort, so that it is easily accessible in the pivoted-out state, for example for refilling the carrier tape and can be pivoted back into the hood-like housing with a handle.
  • the housing has an undercut opening, which is preferably circular-arc-shaped, with which an arc-shaped tongue of the lever arm can be locked when the base plate is pivoted into the housing.
  • the lever arm can thus be used both as a carrier for the skids and as a closure cap which is mounted approximately in the middle of one side of the base plate.
  • the circular arc-shaped tongue engages in the housing opening, comparable to the closure of a sheet steel gasoline can, and establishes a secure connection between the housing and the base plate.
  • the base plate and the housing adapted to it
  • the base plate has the shape of an oblique-angled triangle, the application device being arranged at a corner with an acute angle. Since the application device is designed as an application bar, this bar represents the acute-angled corner of the triangle, so that the adhesive carrier tape is well presented and in particular can also be worked on the inside of containers and the like.
  • This shape ensures that a housing enveloping the functional parts can be designed ergonomically optimally in the form of a hand wedge, and that the acute-angled arrangement of the application device enables a precise transfer of the adhesive to the substrate.
  • the supply spool is arranged as close as possible to the application device, i. H. at the smallest possible distance that a full supply spool allows.
  • the fulcrum of the supply spool lies approximately on the bisector of the said acute angle of the triangle.
  • the arrangement of the take-up reel for the used carrier tape is provided according to a further advantageous embodiment. Less space is required for this, since the carrier tape takes up less space because of the adhesive layer that has meanwhile been transferred.
  • a chamber with cylindrical free space for a replacement coil is provided immediately after the supply spool.
  • the side between the two acute angles of the triangular base is preferably used as a storage surface for the device.
  • the drive connection between the supply reel and the take-up reel is arranged in a closed cavity in the base plate.
  • This encapsulation of the drive connection protects it from contamination by adhesive particles.
  • adhesive residues can still get onto the surface of the base plate, they can be easily removed with a cleaning agent, for which it is particularly advantageous if the materials are resistant to cleaning agents, such as polyolefins.
  • the drive connection is usually designed so that a tension is always exerted on the tape by the take-up reel, be it through a slipping transmission or through a gear drive with a slip clutch.
  • Each tensioning element tries to counteract this tension in a relaxing manner, such that the supply reel and the winding of the used carrier tape turn back against the direction of rotation until the tension is released and the tape loosens. If the device is now transferred over the substrate in the opposite direction during adhesive transfer, be it by mistake or ignorance of the operating instructions, the tape would be loosened in such a way that loops would result and thus adhesive from the tape section between the supply reel to Application device could get inside the device.
  • the drive connection is provided with a backstop.
  • a backstop This ensures with simple and inexpensive to manufacture means that the band always remains taut.
  • the backstop works completely automatically.
  • a gearwheel with a resilient tongue engaging in the teeth can be provided as a backstop, for example. The fact that the tape is always kept taut by the backstop also ensures that when the device is attached at the beginning of the transfer process, the adhesive strip can be produced with a sharp edge at the beginning.
  • the slip clutch is arranged between the supply spool take-up mandrel and a drive gear carrying it. It is particularly advantageous if the supply spool receiving mandrel is formed on the inside as a splined hub, in the teeth of which inclined, resilient pawls engage, which are fastened to the drive gear wheel carrying the supply spool receiving mandrel.
  • the proposed slip clutch system consisting of the spline hub and the resilient pawls, ensures that resistance peaks which adjust to the adhesive quality are periodically set with continuous strip take-off in the order of the tooth pitch, an additional manually operated braking device of known devices being unnecessary, the Jump over after overcoming each resistance peak, which would be followed by a loosening of the belt tension, is compensated for by the elastically mounted application device and thus a constant belt tension is achieved.
  • the housing has at least one inspection hole opposite the winding of the supply reel and / or the empty reel, so that the available supply of the tape roll can be checked by the user at any time.
  • the spool core of the supply spool which can also be located in the area of the inspection hole, can be provided with a color code that indicates the type of adhesive, for example permanent or non-permanent,
  • the inspection hole is preferably outside the area that is operated by the operator when the device is operated User is covered.
  • the inspection hole is preferably rectangular and its narrow sides run parallel to the radius line of the supply reel, so that the rectangle extends in the longitudinal direction over the entire area of the winding height including the winding core of the supply reel.
  • the housing is flat and a protruding, hump-shaped finger rest is provided on a narrow side above the application device.
  • a protruding, hump-shaped finger rest is provided on a narrow side above the application device.
  • particularly advantageous design of the housing is adapted to the human palm in a "paw grip position".
  • the device for applying the adhesive layer has a housing 2 which, in the view in FIG. 1, has approximately the shape of an acute-angled triangle.
  • the device has a thickness of 1.5 to 2.5, preferably 2 cm and can be held by hand like a hand wedge, with a hump-shaped finger rest 24 serving to rest the index finger.
  • the device is pressed with its housing 2 against the substrate 1, so that the adhesive carrier tape 4 guided over an application bar 6 is pressed against the substrate and adheres there.
  • skids 13 arranged on both sides of the application bar 6, of which only one can be seen in FIG. 1, are lifted off the substrate.
  • FIG. 2 shows the device according to FIG. 1 with the housing 2 folded away.
  • a base plate 16 becomes visible, on which, rotatably mounted, a supply spool 3 for a carrier tape 4 coated with adhesive is arranged.
  • the supply reel 3 consists of the tape winding 3a and the winding core 3b.
  • the winding core 3b is seated on a supply reel mandrel 22.
  • On the base plate 16 there is also - also rotatably mounted - a take-up reel 5 for receiving the carrier tape 4b freed from the adhesive layer.
  • the take-up reel 5 has a tape receiving slot 26 in a zigzag shape with an insertion slope and a turning handle 35.
  • the supply reel 3 and the take-up reel 5 are connected in terms of drive via a drive connection with a slip clutch, which will be described further below.
  • a tape guide 27 is also attached on the base plate 16.
  • the tape guide device 27 merges in one piece at its end facing the first acute-angled corner of the base plate 16 into an application bar 6, which is connected to the tape guide device 27 via an intermediate piece 12 with thinned wall thickness such that the application bar 6 oscillates with elastic deformation of the intermediate piece 12, possibly with slight torsion.
  • Two cams 14, which extend in the direction perpendicular to the plane of the base plate 16, are fastened to the application bar 6, of which only one can be seen in FIG. 2.
  • a receiving chamber 20 for a replacement supply spool (not shown) is also arranged on the base plate 16 in the region of the second corner at an acute angle.
  • the chamber 20 is open on its narrow side, which lies between the corner with an obtuse angle and the second corner with an acute angle of the triangular base plate 16, so that from there, after the housing 2 has been folded away, the replacement supply spool can be easily removed or inserted.
  • Brief operating instructions are attached to the upper surface of chamber 20, but are not shown in FIG. 2 for the sake of clarity.
  • the carrier tape 4a coated with adhesive is pulled off the supply reel 3 and passed over the application bar 6. Then it is - freed of glue - on the tape guide 27 to the vicinity of the take-up reel 5.
  • the direction of rotation of the take-up reel 5 is - as will be explained in more detail below - designed so that the side of the band that was coated with adhesive can be brought into contact with the surface of the reel.
  • a lever 17 On the side of the triangular base plate 16, which lies between the two corners at an acute angle, a lever 17 is articulated approximately in the middle and can be pivoted in the direction of the arrow F shown. At its free end, the lever has two sliding skids 13 pointing in the direction of the substrate, which surround the applicator bar in a fork-like manner on both sides when the lever is pivoted in the direction of the base plate 16 in the direction of the arrow.
  • the wall of the skids 13 is further provided with a recess acting as a control curve 15, into each of which the cam 14 fastened to the application bar 6 can be latched. The function of the control curve is described below.
  • a corrugation 28 is attached to the outer wall of the skids 13 so that the user can grip the lever 17 securely with his fingers.
  • this is provided with an arcuate tongue 19 which extends perpendicularly from the lever 17 in the direction of the base plate 16 and whose circular arc shape is selected such that the center of curvature of the circular arc approximately coincides with the pivot point of the lever 17 .
  • the housing 2 is articulated in the corner in which the chamber 20 is provided for the replacement supply spool.
  • the housing 2 consists essentially of two approximately triangular plates which are connected to one another on two outer narrow sides and whose shape corresponds approximately to the shape of the base plate 16.
  • a finger rest 24 is provided on that narrow side, which lies in the area above the application device 6 when the housing is closed.
  • the housing thus encloses the base plate 16 like a hood.
  • the design of the outer housing as a hood has the advantage that it can be made absolutely symmetrical, especially considering larger draft angles for injection molded parts with a textured surface and against a closure lid, with larger rounded edges, which makes the same for right and left-handers Handlinbg is guaranteed.
  • the device is operated as follows:
  • the lever 17 is gripped on the corrugation 28 and the corresponding corrugation - not recognizable in FIG. 2 - on the other side with the thumb and forefinger and swiveled in the direction of the arrow F shown.
  • the cams 14 disengage from the control cam 15 with slight deformation of the elastic intermediate piece 12 of the application bar 6.
  • the lever 17 is then pivoted in the direction of arrow F until the arcuate tongue 19 is completely pulled out of the opening 18 in the housing 2 so that the housing 2 can be pivoted into the position shown in FIG. In this position, the inside of the device is fully accessible, insofar as this is necessary for changing the carrier tape or for cleaning work.
  • the supply roll 3 is placed on the supply reel mandrel 22.
  • the carrier tape 4 is then, as can easily be seen in FIG. 2, pulled over the applicator bar 6 and guided to the take-up reel 5, where it can be inserted into the receiving slot 26. By a few turns of the reel 5, the end of the tape is securely attached to it. The end of the tape can also be fastened without using the receiving slot 26.
  • the side identity of the adhesive tape coating and the take-up reel surface has the advantage that, in the case of a manual as well as automatic initial loading, the tape itself or an upstream tensioning tape with adhesive film, which is preferably provided on the same side for production reasons, can be attached to the take-up device without being complicated by turning the reel to align the take-up slot and to insert the end of the tape, whereby the user can alternatively use the additional take-up slot for later changing of the supply reel, the zigzag design of which holds the end of the tape in position until it is turned by turning the reel using the rotary handle mentioned above , thanks to the special arrangement of the resilient pawls, can be pre-wound and tensioned with little effort.
  • the supply reel 3 is in drive connection with the take-up reel 5 via a slip clutch, as will also be explained in detail below.
  • the device When adhesive is applied to a substrate (cf. FIG. 1), the device is pressed onto the substrate as shown in FIG. 1, the skids 13 first touching the substrate. By further depressing the device in the direction of the substrate, the lever 17 is pivoted further in the direction of the application bar until the application bar 6 protrudes above the level of the skids 13 and the carrier tape 4a coated with adhesive presents the substrate.
  • the applicator bar By choosing the shape of the control curve 15 in the side wall of the skids 13, the applicator bar is moved forward via the cams 14, ie opposite to the direction of movement of the device.
  • the application bar 6 experiences the same deflection when the device is pulled over the substrate.
  • the choice of the shape of the control cam 15 in this case requires that the skids 13 are raised and only the applicator bar 6 comes into contact with the substrate tape 4 running over it with the substrate 1 (cf. FIG. 1). Unevenness of the substrate is compensated for during the adhesive transfer by the elastic mounting 12 of the application bar 6, so that an edge-sharp adhesive transfer is possible.
  • the application bar 6 springs back into its equilibrium position, the skids 13 being moved via the cams 14 and the control cam 15 in the direction of the substrate and projecting beyond the application bar 6, so that the application bar 6 is lifted off the substrate.
  • This lifting of the application bar 6 takes place in accordance with the conditions given by the geometry of the device, which are chosen so that an optimal tear-off edge of the adhesive is ensured.
  • the demolition conditions are therefore largely independent of the type of handling of the device by the user.
  • the drive connection between the supply reel and the take-up reel is explained below with reference in particular to FIG. 3.
  • the base plate 16 is double-skinned so that gears for the drive connection between the supply roll 3 and the take-up reel 5 can be accommodated in the cavity between the two shells.
  • the almost hermetic encapsulation of the drive connection consisting of gear wheels ensures that no adhesive residues get to the gear wheels and can interfere with their function.
  • the upper half-shell of the base plate 16 is removed, so that only the lower half-shell 16a can be seen. As a result, three gearwheels are visible, namely the gearwheels 7, 8 and 9.
  • gearwheel 7 On the gearwheel 7, which lies below the supply roll 3, are five circumferentially extending resilient pawls 10 are arranged, which are part of a slip clutch.
  • the gear 7 meshes with an intermediate gear 8, which has fewer teeth and a smaller diameter.
  • the intermediate gear 8 in turn meshes with an even smaller gear 9.
  • the gear 9 is in one piece with the winding reel 5 already described.
  • a spring tongue arranged on the half shell 16a engages in the teeth of the intermediate shell 16 in the manner of a directional lock. The choice of the transmission ratio ensures that the reel can always rotate sufficiently fast enough to wind up and tension the tape drawn off from the supply roll 3.
  • the backstop consisting of the intermediate gear 8 and the spring tongue 21 ensures that the belt 4 is always kept taut and device operation with adhesive application in the "wrong" direction is avoided.
  • the second half-shell of the base plate 16, which is not shown in FIG. 3, is fastened to the half-shell 16a in a known manner via a sleeve-pin plug connection (not shown). It has only a small distance of a few millimeters from it in the area of the gear wheels 7, 8 and 9, which is sufficient to accommodate the gear wheels 7, 8, 9, while in the remaining area to form the receiving chamber 20 (in FIG. 2) the distance between the two housing shells is increased for the replacement coil.
  • the supply reel mandrel 22 is explained below with reference to FIG. 4.
  • the mandrel 22 is shown in plan view, while the right half of Figure 4 shows the mandrel partly in axial section and partly in side view.
  • the supply reel mandrel 22 essentially consists of a cylindrical part 29, the height of which corresponds approximately to the width of the adhesive carrier tape 4.
  • the cylindrical part 29 is closed by a cover plate 30 on one end face. At the open end, the cylindrical part 29 merges into an enlarged support flange 31.
  • Ribs 32 are formed on the outer surface of the cylindrical part 29, the height, i.e.
  • Axial grooves 11 are provided on the inner wall of the holding mandrel 22 in the region of the support flange 31.
  • the supply reel mandrel 22 rests on the gear 7 (FIG. 3).
  • the elastic pawls 10 engage in the axial grooves 11 and form a slip clutch with them.
  • the holding mandrel 22 is held by the upper half-shell of the base plate 16, which for this purpose has a circular recess whose diameter is somewhat smaller than the diameter of the support flange 31.
  • the winding core 3b of the supply reel 3 is described below with reference to FIG. 5.
  • the left half of FIG. 5 shows the winding core in a view from below, the right half in axial section.
  • the winding core 3b consists of a cylindrical part which is open on both ends, over the outer circumference of which the adhesive carrier tape (not shown in FIG. 5) is wound.
  • Ribs 33 are arranged on the inner wall at a uniform circumferential spacing, the width of which is smaller than the spacing of the ribs 32 on the outer circumference of the holding mandrel 22.
  • the winding core 3b also has an inner ring collar 34 on one end face.
  • the supply reel 3 with its winding core 3b can be placed on the supply reel mandrel 22 with slight play, the ribs 32 of the mandrel 22 with the ribs 33 of the winding core 3b producing a positive driver connection in the manner of a spline-spline connection.
  • the conical flattening of the ribs 32 of the holding mandrel 22 makes it easier to put on. Since the inner diameter of the inner ring collar 34 is smaller than the diameter of the enveloping circle of the ribs 32 of the holding mandrel 22, the inner ring can collar 34 can not be pushed over the ribs 32 of the mandrel 22.
  • This arrangement ensures that the inner collar of the supply spool core is stopped by the end faces of the recessed supply spool receiving ribs when attempting to inadvertently insert the supply spool, thus making it impossible to insert the supply spool with the wrong direction of withdrawal, which on the one hand ensures the functionally correct insertion and on the other hand soiling of the device due to adhesive transfer, which would be unavoidable if the coil is incorrectly inserted due to the inevitable manipulations with the adhesive tape, whereby the seat of the supply coil core 3b on the mandrel, which is determined exclusively by rib-groove contacts with cylindrical enveloping surfaces, one axial force component can arise, which would result in a lateral displacement of the supply reel, while the conical active envelope surface of the supply reel mandrel 22 prevents the user from using supply reels The dimensions and adhesive properties of which the device is not designed.
  • FIG. 6 shows the fully assembled device in a front view (seen from the left in FIG. 1).
  • the housing 2 with the finger rest 24 can be seen.
  • the housing In the area of the carrier tape guide, the housing is open, so that it can be observed how the carrier tape 4 coming from the application bar 6 is guided via the tape guide device 27.
  • FIG. 6 also shows the skids 13 which are arranged on the lever 17 on both sides and which surround the applicator bar 6 in a fork-like manner on both sides. Furthermore, the cams 14 on both sides can be seen, which engage in control cams in the side wall of the skids 13.
  • the supply reel holder and take-up core are converted into driver pins and the upper part of the gear case, backstop, application device and tape guide device, combined with a cover, are combined to form a cassette, this cassette containing a full supply reel , whose leader tape is already attached to an additional empty spool and both spool cores have profiled receiving bores that are contoured to match the input and output drive pins of the remaining gear, while the backstop is split, integrated in one part into the lower part of the cassette, in addition engage teeth formed on the preferably identical coil core.
  • a breakthrough is provided for the cassette cover congruent to the inspection hole of the housing cover.
  • the splitting of the backstop ensures that the supply reel and empty reel are secured against loosening of the tape, especially in the storage phase, in which the reels are not in contact with a gear and the opening in the cassette cover also secures this variant Check the tape supply, as in the type of tape loaded.
  • a third design option in which only the winding core of the first solution is replaced by a driving pin and the replacement supply spool with an empty spool core, the receiving bore of which is profiled according to the driving fit, the leader tape already being on the empty spool is attached.

Landscapes

  • Adhesive Tape Dispensing Devices (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Replacement Of Web Rolls (AREA)
  • Materials For Medical Uses (AREA)
  • Coating Apparatus (AREA)

Claims (25)

  1. Outillage pour application d'un film adhésif sur un substrat (1) comprenant un carter (2), dans lequel sont installés une bobine de réserve (3) pour une bande-support (4a) enduite d'un film adhésif, un tourniquet d'enroulement (5) pour recevoir la bande-support (4b) séparée du film adhésif et un dispositif d'étalement guidant la bande (4), qui dépasse du carter (2) et présente le côté enduit de film adhésif de la bande-support (4) lsur le côté extérieur de l'outillage et donc au substrat (1), une liaison de mouvement (7, 8, 9) entre la bobine de réserve (3) et le tourniquet d'enroulement (5) étant réalisée par un accouplement à friction (10, 11), qui par un mouvement de la bobine de réserve (3) par traction de la bande-support (4) commande le tourniquet d'enroulement (5) à une vitesse de rotation telle, que la bande-support (4) reste toujours tendue, caractérisé en ce que le dispositif d'étalement (6) est réalisé sous forme de barre d'étalement fixée à une pièce intermédiaire (12) pouvant se courber élastiquement, laquelle barre d'étalement pouvant par déformation élastique de la pièce intermédiaire (12) effectuer un mouvement pendulaire.
  2. Outillage selon la revendication 1, caractérisé en ce que des deux côtés du dispositif d'étalement (6) perpendiculairement à celui-ci, sont disposés des patins (13) mobiles par rapport au plan du substrat, et qui sont mis en précontrainte élastique en direction du substrat (1).
  3. Outillage selon la revendication 2, caractérisé en ce que le dispositif d'étalement (6) comprend au moins une came (14), qui engrène dans une courbe de commande (15) des patins (13).
  4. Outillage selon la revendication 3, caractérisé en ce que la came (14) peut s'enclencher dans la courbe de commande (15).
  5. Outillage selon la revendication 3, caractérisé en ce que la courbe de commande (15) est réalisée, de facon que par soulèvement des patins (13) en direction du dispositif d'étalement (6), le dispositif d'étalement pivote dans le sens de traction sur la bande (4).
  6. Outillage selon l'une quelconque des revendications 3 à 5, caractérisé en ce que la courbe de commande (15) est réalisée, de facon que dans un pivotement du dispositif d'étalement (6) dans le sens de traction, sur la bande (4), les patins (13) sont soulevés en direction du dispositif d'étalement (6).
  7. Outillage selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la bobine de réserve (3), le tourniquet d'enroulement (5), de dispositif d'étalement (6) et la liaison de mouvement (7, 8, 9) sont disposés sur une plaque de base (16).
  8. Outillage selon la revendication 7 et au moins une quelconque des revendications 2 à 5, caractérisé en ce que les patins (13) sont disposés sur un bras de levier (17) articulé sur la plaque de base (16).
  9. Outillage selon la revendication 7, caractérisé en ce qu'on peut séparer la plaque de base (16) du carter (2) en la faisant pivoter.
  10. Outillage selon les revendications 8 et 9, caractérisé en ce que le carter (2) présente une ouverture (18) en contre-dépouille, dans laquelle une languette (19) du bras de levier (17) en forme d'arc de cercle peut verrouiller la plaque de base (16) sur le carter (2) après pivotement.
  11. Outillage selon l'une quelconque des revendications 7 à 10, caractérisé en ce que la plaque de base (16) présente la forme d'un triangle scalène et en ce que sur un coin à angle aigu est placé le dispositif d'étalement (6).
  12. Outillage selon la revendication 11, caractérisé en ce que la bobine de réserve (3) est placée le plus près possible du dispositif d'étalement (6).
  13. Outillage selon l'une ou l'autre des revendications 11 ou 12, caractérisé en ce que dans la zone de l'angle émoussé du triangle est placé le tourniquet d'enroulement (5).
  14. Outillage selon l'une quelconque des revendications 11 à 13, caractérisé en ce que dans la zone du deuxième angle aigu du triangle, est disposée une chambre de réserve (20) pour une bobine de remplacement.
  15. Outillage selon l'une quelconque des revendications 11 à 14, caractérisé en ce que la liaison de mouvement (7, 8, 9) est placée dans un espace creux fermé de la plaque de base (16).
  16. Outillage selon l'une quelconque des revendications 1 à 15, caractérisé en ce que la liaison de mouvement (7, 8, 9) contient un cliquet anti-retour (8, 21).
  17. Outillage selon l'une quelconque des revendications 1 à 16, caractérisé en ce que l'accouplement par friction (10, 11) est placé entre le mandrin de la bobine de réserve (22) et une roue dentée du mouvement (7) portant celui-ci.
  18. Outillage selon la revendication 17, caractérisé en ce que l'accouplement de friction se compose de rainures (11) axiales placées sur le côté intérieur du mandrin porte bobine de réserve (22) et de cliquets (10) élastiques fixés au moyen de la roue dentée du mouvement (7) et engrenant dans les rainures axiales (11).
  19. Outillage selon la revendication 18, caractérisé en ce que le noyau d'enroulement (3b) de la bobine de réserve (3) comprend un collet annulaire intérieur (34) empéchant la mise en place inversée sur le mandrin-support de la bobine de réserve (22).
  20. Outillage selon l'une quelconque des revendications 1 à 19, caractérisé en ce que le carter (2) comprend au moins un trou de visite (23) situé en face de l'enroulement de la bobine de réserve et/ou du tourniquet d'enroulement (5).
  21. Outillage selon l'une quelconque des revendications 1 à 20, caractérisé en ce que le carter (2) est plat et comporte sur son côté étroit au-dessus du dispositif d'étalement (6) un appui en saillie (24) pour les doigts.
  22. Outillage selon l'une quelconque des revendications 1 à 21, caractérisé en ce que la bobine de réserve (3) est placée dans une cassette.
  23. Outillage selon la revendication 24, caractérisé en ce que la cassette contient le tourniquet-en-rouleur (5).
  24. Outillage selon l'une ou l'autre des revendications 22 à 23, caractérisé en ce que le cliquet anti-retour est disposé dans la cassette.
  25. Outillage selon l'une quelconque des revendications 22 à 24, caractérisé en ce que la cassette contient le dispositif de guidage de bande (27).
EP87113944A 1986-11-13 1987-09-24 Outillage pour appliquer un film adhésif Expired - Lifetime EP0267396B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87113944T ATE54117T1 (de) 1986-11-13 1987-09-24 Geraet zum auftragen eines klebstoff-filmes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863638722 DE3638722A1 (de) 1986-11-13 1986-11-13 Geraet zum auftragen eines klebstoff-filmes
DE3638722 1986-11-13

Publications (3)

Publication Number Publication Date
EP0267396A1 EP0267396A1 (fr) 1988-05-18
EP0267396B1 EP0267396B1 (fr) 1990-06-27
EP0267396B2 true EP0267396B2 (fr) 1994-02-09

Family

ID=6313832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113944A Expired - Lifetime EP0267396B2 (fr) 1986-11-13 1987-09-24 Outillage pour appliquer un film adhésif

Country Status (7)

Country Link
US (1) US4851076B1 (fr)
EP (1) EP0267396B2 (fr)
JP (1) JPH0659963B2 (fr)
AT (1) ATE54117T1 (fr)
DE (2) DE3638722A1 (fr)
ES (1) ES2016831T5 (fr)
GR (1) GR3000586T3 (fr)

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US6997229B2 (en) 2003-09-16 2006-02-14 Sanford, L.P. Rotatable applicator tip for a corrective tape dispenser
US7163040B2 (en) 2004-01-13 2007-01-16 Sanford L.P. Correction tape applicator tip with cylindrical projection

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US8746313B2 (en) 2010-12-29 2014-06-10 Sanford, L.P. Correction tape re-tensioning mechanism and correction tape dispenser comprising same
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DE19936445B4 (de) * 1999-08-03 2004-03-04 SOCIéTé BIC Handgerät zum Übertragen eines Filmes von einem Trägerband auf ein Substrat
US6997229B2 (en) 2003-09-16 2006-02-14 Sanford, L.P. Rotatable applicator tip for a corrective tape dispenser
US7163040B2 (en) 2004-01-13 2007-01-16 Sanford L.P. Correction tape applicator tip with cylindrical projection
US7681616B2 (en) 2004-01-13 2010-03-23 Sanford, L.P. Correction tape applicator tip with cylindrical projection

Also Published As

Publication number Publication date
ES2016831B3 (es) 1990-12-01
DE3638722A1 (de) 1988-05-26
US4851076A (en) 1989-07-25
GR3000586T3 (en) 1991-07-31
JPH0659963B2 (ja) 1994-08-10
US4851076B1 (en) 1999-10-26
DE3638722C2 (fr) 1989-09-21
EP0267396A1 (fr) 1988-05-18
JPS63235256A (ja) 1988-09-30
ES2016831T5 (es) 1995-08-16
ATE54117T1 (de) 1990-07-15
EP0267396B1 (fr) 1990-06-27
DE3763398D1 (de) 1990-08-02

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