WO2023061729A1 - Applicateur avec indication de force de pression suffisante - Google Patents

Applicateur avec indication de force de pression suffisante Download PDF

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Publication number
WO2023061729A1
WO2023061729A1 PCT/EP2022/076539 EP2022076539W WO2023061729A1 WO 2023061729 A1 WO2023061729 A1 WO 2023061729A1 EP 2022076539 W EP2022076539 W EP 2022076539W WO 2023061729 A1 WO2023061729 A1 WO 2023061729A1
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WO
WIPO (PCT)
Prior art keywords
applicator
contact pressure
handle
adhesive
strip
Prior art date
Application number
PCT/EP2022/076539
Other languages
German (de)
English (en)
Inventor
Tanja ALTENWEGNER
Original Assignee
Tesa Se
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
Application filed by Tesa Se filed Critical Tesa Se
Priority to EP22782538.7A priority Critical patent/EP4416095A1/fr
Publication of WO2023061729A1 publication Critical patent/WO2023061729A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/34—Pressure, e.g. fluid pressure

Definitions

  • the invention relates to an applicator that can be used as an assembly aid when gluing two parts to be joined, for example a holding body and a wall, by means of a double-sided self-adhesive adhesive strip and, for this purpose, a handle for holding the applicator with one or both hands of the user and a suitable pressing edge on one having distal end of the handle.
  • the invention also relates in particular to an assembly set which, in addition to a double-sided self-adhesive adhesive strip, also includes such an applicator, as well as a method for its use when gluing two parts to be joined.
  • Joining parts to be joined by gluing can be objects that can be used in everyday life, such as framed pictures, picture ledges, hooks and other holders or shelves, on the one hand, and vertical wall surfaces, wall coverings and other underground surfaces to which these objects are to be attached on the other hand.
  • the user is often provided with double-sided self-adhesive adhesive strips, which are first to be attached to a suitable wall surface or other surface of a first joining part, so that the second joining part can then be attached to it.
  • pressure-sensitive adhesives in double-sided self-adhesive adhesive strips which have permanent tack at room temperature and form adhesion to various surfaces under pressure.
  • the required minimum contact pressure during assembly depends on the application. at high Stress peaks on the adhesive bond, a minimum contact pressure over the entire surface is essential so that the pressure-sensitive adhesive is in close contact with the respective adherend surface and many physical interactions on which the adhesive effect is based can be built up.
  • Self-adhesive objects or objects that can be fastened by means of a double-sided self-adhesive adhesive strip for mounting on walls and other surfaces are known in many different designs. Such objects are commercially available, for example, as holding bodies such as hooks or towel holders. Among other things, removable double-sided adhesive strips are also known, which after bonding can be detached from the adhesive joint between the wall and the holding body by stretching in a direction approximately parallel to the wall, so that the holding body can be removed from it again without damaging the substrate. Such adhesive strips are usually glued behind the holding body in such a way that a non-adhesive area that can be gripped by hand remains accessible for the stretching debonding.
  • US 2008/0135159 A1 discloses the use of a rigid applicator tool, for example in the form of a rectangular wooden or plastic plate, with which the user can press pressure-sensitive adhesive strips over the entire surface, which can be removed again by stretching.
  • a rigid applicator tool for example in the form of a rectangular wooden or plastic plate, with which the user can press pressure-sensitive adhesive strips over the entire surface, which can be removed again by stretching.
  • the adhesive strip is first applied to a (joint) surface to which it is to be attached.
  • the planar edge of the rigid applicator is to be positioned at a first end of the adhesive strip and pulled along a longitudinal extent of the adhesive strip to its second end. Meanwhile, apply a force to the applicator sufficient to urge the pressure-sensitive adhesive composition contained in the tape into intimate contact with said adherend surface.
  • a hand-held device for transferring an adhesive or correction film onto a substrate such as a photograph or paper is known according to DE 10 2006 037 372 A1.
  • the hand-held device has a housing inside which a supply reel is provided, from which the adhesive or correction film is unwound via a delivery point located on the outside of the housing.
  • the dispensing point is used to position the film against the substrate in order to transfer the adhesive or correction layer applied to the film to the substrate.
  • the used (empty) film is wound onto a take-up spool also contained in the housing.
  • DE 10 2006 037 372 A1 addresses the problem that it can be difficult for the user to apply the correct pressure to the substrate: if the contact pressure is too low, the film is not transferred correctly or not completely to the substrate. However, if the pressure is too high, the substrate can be destroyed, which can be a problem, especially with photographs.
  • the solution proposed is a rotatable device built into the back of the housing to "display" the optimal contact pressure of the delivery point on the substrate, which includes spring elements such as leaf springs etc. arranged inside the housing in particular, as well as suitable stops to protect the device against excessive contact pressure.
  • the means gives the user a mainly haptic or acoustic "indication" and last but not least serves to safely avoid damaging exceeding of a sufficient contact pressure.
  • the object of the invention is to provide an applicator that is as easy to handle and produce as possible, which enables reliable bonding of two parts to be joined, such as a holding body and a wall, for example, by means of a double-sided self-adhesive adhesive strip. It is a particular object of the invention to specify an applicator and a method for its use in the bonding process that enable reliable development of a full-surface adhesive effect in the adhesive strip, which can withstand a weight load of up to a few kilograms for several years, depending on the application.
  • the present invention relates in particular to an applicator for gluing two parts to be joined (such as, for example, the holding body and the wall) by means of a double-sided self-adhesive adhesive strip.
  • the applicator has a handle which is designed and dimensioned in its proximal region (ie at its proximal end if the handle is elongated) for holding the applicator with one hand of a user when carrying out a bonding process.
  • a pressing edge is provided on a free distal end of the handle, which is not in the user's hand when the applicator is used as intended.
  • This is designed to lie on a surface of the double-sided self-adhesive adhesive strip (which is still protected by a non-adhesive protective strip) and to press the adhesive strip against a surface of the component to be bonded to bring about the necessary bonding of the adhesive strip to this component.
  • the applicator has feedback means integrated into its handle, which is designed in such a way that the achievement of a predetermined optimum contact pressure of the contact edge on the protective paper of the double-sided self-adhesive adhesive strip or joining part is clearly visible to the user over the duration of the entire bonding process is visible from the outside.
  • a protective paper known per se for double-sided self-adhesive adhesive strips or a protective film can be used as the removable, non-adhesive protective layer.
  • the optimal contact pressure is usually between about 0.2 and 1.0 MPa.
  • the present mechanical and geometrical parameters of the applicator and its feedback means can be selected so that the user can clearly see from the outside that a predetermined contact pressure in the range between 0.2 and 1.0 MPa has been reached over the duration of the bonding process.
  • the pressing edge can, but does not necessarily have to be, linear (i.e. one-dimensional and straight) or planar (i.e. two-dimensional and flat), even if this corresponds to a geometry that is most suitable and expedient in most applications.
  • the pressing edge can also have a differently shaped pressing point if this suits the application-specific joining surfaces or required contact pressures better than a straight or flat edge or surface. It can also be designed, for example, as a rounded tip or a rotating sphere or another body of rotation, with a cylindrical roller in turn resulting in a straight or planar pressing edge.
  • the applicator and its feedback means can be designed so simply and robustly that it can also be used with a contact pressure that clearly exceeds the optimum contact pressure.
  • neither the applicator itself nor its feedback means has to be designed to indicate to the user or to prevent the exceeding of the predetermined optimal contact pressure when carrying out a proper bonding process. This can be implemented in particular with all of the embodiments specified below.
  • the handle can be elongated and flat and preferably provided with indentations and/or corrugated structures on its upper side facing away from the adhesive strip, which offer the user's fingers additional support against slipping. It can be particularly favorable both for production and for use if the applicator has a flat overall structure.
  • the applicator consists only of its handle and the pressing edge formed or attached to its free distal end.
  • the pressing edge has a lateral (overall) extension or length along which it is to be placed on the surfaces to be bonded.
  • the handle has a longitudinal extent in a direction perpendicular to the lateral extent of the pressing edge.
  • a transverse overall dimension (in other words, height) of the applicator in a direction perpendicular to the lateral extension of the pressing edge and to the longitudinal extension of the handle is many times smaller than the lateral extension of the pressing edge and/or the longitudinal extension of the handle.
  • the width of the handle which is flat overall, can correspond approximately to the lateral extent of the pressing edge, for example, or it can also be somewhat narrower.
  • Such a flat overall structure also makes it possible, for example, to store the applicator in a holding device to be assembled from the joining parts, such as a cover strip, which has a flat cavity between the joining parts fastened to one another. If the holding device needs to be repositioned at a later date, the applicator for assembly is immediately at hand and does not have to be searched for.
  • the feedback means comprises a first handle component that is elastically deformable at least in a contact pressure range that reaches up to the optimum contact pressure and at the distal end of which the contact edge is provided.
  • This first handle component is designed in such a way that its deformation when the optimal contact pressure is reached is clearly visually recognizable to the user from the outside.
  • the applicator indicates to the user, when pressing the pressure-sensitive adhesive strip onto a part to be joined, directly by mechanically deforming his grip whether the pressing force is sufficient over the pressing period.
  • the deformation is almost ideally elastic, i. H. Spontaneous deformation occurs under load, which also spontaneously and completely regresses when the load is removed.
  • the first handle component mentioned which is directly loaded by the contact pressure during the bonding process, can be arranged and fastened, for example, to a second handle component that is not loaded during the bonding process in such a way that the elastic deformation of the first handle component only becomes clearly visible from the outside when the optimal contact pressure is reached recognizable form fit and/or alignment with the second handle component. Due to the form fit or the alignment of both handle components, the user can be provided with intuitively understandable feedback on the achievement/presence of the optimal contact pressure, which is also easily recognizable to him visually when carrying out the bonding process.
  • this form fit of the first handle component with the second handle component can be clearly visually recognizable from the outside because during the bonding process the tops of both handle components that face the user are at an angle to one another when the contact pressure is below the optimum contact pressure and only align with this form fit and have an im Substantially continuously form a flat surface section with each other.
  • the feedback means also includes at least one marking visible from the outside on the handle of the applicator, the first part of which is on the first handle component that is directly loaded by the contact pressure and the second part of it on the second handle component that is not loaded by the contact pressure are trained. Both parts of the marking are offset from one another when contact pressures are below the optimum contact pressure and can only be brought together in a clearly recognizable manner through the elastic deformation of the first handle component when the optimum contact pressure is reached, for example by forming a continuous line with one another.
  • This marking can be provided, for example, in the form of one or more notches or lines drawn on the applicator surface.
  • said first handle component is formed as an elastically deformable (flexible) distal end portion of a first beam
  • the second handle component is formed as a second beam, which may be rigid or elastic.
  • These two beams are fixed to each other at their proximal ends adapted for the user to hold the applicator, while their free distal ends project from each other by a predetermined transverse distance when the applicator is in an unloaded state. This can be realized by a longitudinal curvature or initial bending that is present in the unloaded state of the first beam and/or by a longitudinal curvature or initial bending of the second beam.
  • the pressing edge is formed only at the distal end of the first beam, which is why only this beam is loaded by the pressing force.
  • Both beams can otherwise be of similar design, for example made of the same material. However, this is not mandatory due to their different function.
  • the length of the first bar should face the adhesive strip or its protective strip and only be placed against it with the pressing edge and pressed so that the second bar is arranged on an upper side of the handle facing away from the adhesive strip or its protective strip.
  • the transversal distance between the distal ends of both beams is reduced when a contact pressure is applied due to the bending of the first beam and only becomes equal to zero when the optimal contact pressure is reached.
  • the applicator consists of two beams connected at one end. If a force is applied to the free end of the first beam, it deforms. When the loaded and unloaded beam touch, the desired force is reached.
  • both beams can be connected in the area of their proximal ends by an elastically flexible film hinge made of the same material as the applicator.
  • a further development of the above first embodiment makes it possible to secure an arrangement, fixation and orientation of both bars parallel to one another, intended for the bonding process, by means of a clip closure in an assembled state of the applicator intended for use.
  • the clip closure can be based on one or more snap-in hooks, which are formed on one of the two bars, snapping into recesses and/or projections formed on the respective other bar.
  • one or both bars can have cavities on their sides facing one another during the bonding process, which are located inside the handle when the applicator is in the assembled state and can be delimited, for example, by stabilizing inner walls/struts.
  • the weight and material consumption of the applicator can be significantly reduced while maintaining the same mechanical stability.
  • both bars can be connected in the area of their proximal ends by a rigid web or longitudinal strut made of the same material as the applicator, which stabilizes them together in such a way that when the applicator is pressed with its pressing edge, only the elastically flexible end section of the first bar can be moved can move with respect to the second beam until the form fit is achieved in that the elastically flexible end section of the first beam strikes a free distal end of the second beam.
  • the first handle component transitions at its end opposite the pressing edge into a second handle component which is not loaded by the contact pressure and is designed to be rigid for holding by the user.
  • the attainment of the optimum contact pressure is clearly visually recognizable from the outside in that the tops of both handle components facing the user during the bonding process are pressed at contact pressures below the optimum Contact pressure are arranged at an angle to one another and only align when the optimum contact pressure is reached and preferably form a substantially continuously flat surface section with one another.
  • the feedback means can also have an elastic spring element (leaf spring, spiral spring and/or an elastomer) integrated in the handle, which changes depending on the contact pressure with which the applicator presses against a surface with its contact edge is pressed, reversibly deformed, with only the effect of this deformation on the outer shape of the handle at the optimum contact pressure for the user being visually clearly recognizable from the outside.
  • an elastic spring element leaf spring, spiral spring and/or an elastomer
  • This can be realized, for example, by a helical spring or an elastomeric spacer, etc., hidden between two rigid elongate beams which are only connected (rotatably) in the proximal area and form the handle of the applicator.
  • the pressing edge is particularly favorable, particularly in the case of flat (planar) surfaces of the parts to be joined and correspondingly flat adhesive strips, for the pressing edge to also be straight (one-dimensional) or planar (i.e. two-dimensional and flat).
  • the required pressure-sensitive adhesive effect can be achieved in one go with the applicator.
  • the pressing edge can also be designed in that the applicator comprises a pressure roller which is rotatably mounted at the distal end of the handle and which is used to apply and press on the adhesive strip or its protective strip and to rotate when the applicator is pulled by its handle along the adhesive strip (or its Protective strip) is formed.
  • the pressure roller can be of cylindrical design, so that there is a straight pressure edge along the cylinder axis of the pressure roller.
  • the present invention also relates to an assembly set which firstly comprises a double-sided self-adhesive adhesive strip which is used to attach two parts to be joined (e.g Holding body and wall) is formed together by gluing.
  • a double-sided self-adhesive adhesive strip which is used to attach two parts to be joined (e.g Holding body and wall) is formed together by gluing.
  • the surface of the adhesive strip is formed on both sides by one and the same or a separate pressure-sensitive adhesive layer, which is protected on the outside by a removable, non-adhesive protective strip.
  • the assembly set includes an applicator of the type presented here. This is designed such that the above-mentioned predetermined optimum contact pressure is sufficient contact pressure to develop the adhesive effect of the pressure-sensitive adhesive of the adhesive strip for bonding it to the respective joining part.
  • the pressing edge of the applicator can be geometrically complementary to the surface of the adhesive strip or one of the parts to be joined.
  • the pressing edge can be pressed essentially uniformly at once with the predetermined contact pressure against an entire surface of the adhesive strip to be bonded and the associated joining part underneath (in particular in the case of a flat, i.e. two-dimensional pressing edge).
  • the pressure edge can (particularly if it is one-dimensional) by pulling in a straight direction along the surface of the adhesive strip to be bonded and the associated joining part underneath it, essentially evenly with the predetermined contact pressure in a single pull or preferably in press several consecutively repeated strokes together over the entire surface.
  • the assembly set can - but does not have to - also include one or both parts to be bonded together.
  • the assembly set can contain one or more identical or different holding bodies such as wall hooks, etc., all of which have a surface to be joined that corresponds to the enclosed adhesive strip. With this surface, the respective holding body is to be attached to a vertical wall or tile with the aid of the double-sided adhesive strip, which is therefore the second part to be joined.
  • the present invention also relates to a method for gluing two parts to be joined (e.g. holding body and wall) by means of a double-sided self-adhesive adhesive strip Use of an assembly set of the type presented here.
  • the adhesive strip comprises a first strip end and an opposite second strip end with an intermediate longitudinal extension, the area of which corresponds approximately to the surfaces of the two parts to be bonded together.
  • the method comprises the following steps, which are to be carried out in the order given, although further intermediate steps can also be inserted: First, the protective strip is removed from a first surface of the adhesive strip. This surface is then applied to the surface of the part to be joined of a first part to be joined. Then the applicator is placed with its pressing edge on the first strip end of the adhesive strip on its second surface, which faces away from the first joining part and is still protected by a non-adhesive protective strip during this step.
  • the applicator is now pulled, starting at the first end of the adhesive strip, along the length of the adhesive strip to its second end, with the contact edge of the applicator being pressed continuously at least with the predetermined contact pressure against the adhesive strip and the first part to be joined underneath. If necessary, this pulling process can be repeated again or even several times in order to extend the total pressing time at each point of the strip and thereby additionally support the creation of the adhesive effect.
  • the applicator is removed from that surface of the tape and the second protective strip that was protecting it up to that point is removed.
  • the second surface of the adhesive strip is then glued to the second part to be joined, and depending on the specific geometry of the second part to be joined, etc., the applicator can also be used for this in a similar way.
  • FIG. 1 shows a schematic representation of an unloaded applicator according to a first embodiment of the invention in vertical longitudinal section
  • FIG. 2A is a schematic representation of another example of an applicator according to the first embodiment of the invention in vertical longitudinal section;
  • FIG. 2B is a schematic plan view of the applicator of FIG. 2A;
  • Fig. 2C is a schematic front view of the applicator of Fig. 2A
  • 3A shows a schematic perspective view of a further exemplary embodiment of the applicator with a clip closure in the closed state
  • FIG. 3B shows the applicator of FIG. 3A in the open state
  • FIG. 4A shows a schematic perspective view of a further exemplary embodiment of the applicator with a clip closure in the closed state
  • FIG. 4B shows the applicator with the clip closure of FIG. 4A in the open state
  • FIG. 5 shows a schematic perspective view of a further exemplary embodiment of the applicator with a rigid web or longitudinal strut
  • FIG. 6 shows a schematic perspective view of a further exemplary embodiment of the applicator according to a second embodiment.
  • 1 shows a schematic vertical longitudinal section of an embodiment of an applicator 1 according to the first embodiment of the invention described above, in which the applicator 1 is constructed from two beams connected at one end.
  • the applicator 1 has a flat overall structure, which can be seen in the vertical direction of the page plane of FIG. 1, in that its overall length exceeds its overall height many times over.
  • the applicator 1 of FIG. 1 is for bonding two parts to be joined (not shown), such as. B. a holding body and a wall surface, designed by means of a double-sided self-adhesive tape (not shown).
  • the applicator 1 has an elongate handle 2, which is designed and dimensioned in its proximal region on the right in FIG. 1 for holding the applicator 1 with one or two (both) hands of a user when carrying out a bonding process.
  • a pressing edge 3 is provided on the free distal end of the handle 2 on the left in FIG. 1 . This is to apply to a surface of the double-sided self-adhesive tape (or its non-adhesive backing strip) and press the tape to a substrate surface (in this example a flat wall or tile surface) to effect a required bonding of the tape to that substrate educated.
  • the pressing edge 3 is therefore designed to be planar or essentially rectilinear, as illustrated and explained below with reference to the further views of a further example of the applicator 1 in FIGS. 2B and 2C.
  • the applicator 1 has a feedback means integrated in its handle 2, which is designed in such a way that the achievement of a predetermined optimal contact pressure (of approximately 0.15 to 1.0 MPa) with the contact edge 3 on the double-sided self-adhesive adhesive strip or Joining part for the user is clearly visually recognizable from the outside over the duration of the entire bonding process.
  • a predetermined optimal contact pressure of approximately 0.15 to 1.0 MPa
  • this feedback means is given by the fact that the handle 2 of the applicator 1 consists of a first bar 4 arranged at the bottom in FIG. 1 with an elastically flexible distal end section, which contains the pressing edge 3, and a second bar 5 arranged at the top in FIG. 1, which remains unloaded during the bonding process.
  • the bars 4 and 5 are fastened to one another only in the proximal area of the handle 2, in this example by means of screws, two of which can be seen in the sectional view of FIG.
  • the pressing edge 3 is formed at the distal end of the first bar 4, which in the unloaded state of the applicator 1 (ie when it is not applied to the adhesive bond as in FIG. 1) by a predetermined transverse (vertical in FIG. 1) distance from the free distal end of the second beam 5 protrudes.
  • the applicator 1 When the applicator 1 is placed with its contact edge 3 on a surface of the adhesive strip or its protective strip and when the user exerts contact pressure with the hand holding the handle 2 in the proximal area of the applicator, the front (i.e. distal) end section of the first beam 4 elastic and therefore reversible. As a result, its distal end with the pressing edge 3 approaches the free distal end of the second beam 5 until the distal ends of both beams abut one another (form fit).
  • the adapter 1 of Fig. 1 also has markings 6 in the form of straight notches in the distal area of both bars 4 and 5, which only form an uninterrupted straight line when the form closure occurs line up with each other.
  • such a composite marking 6 can be seen on a composite long side 4b+5b of the handle 2 lying in the plane of the page, with further markings analogously on the opposite side covered in FIG side of the handle 2 and/or on its composite top 4a+5a.
  • the applicator 1 in FIG. 1 has a flat recess 7 on its upper side, which enables the user to hold the handle 2 in a non-slip manner when carrying out the bonding process described further below.
  • FIG. 2A shows a further exemplary illustration of an applicator 1 according to the above embodiment of the invention in a vertical longitudinal section.
  • This can in particular be the applicator 1 of FIG. 1, with the first bar 4 lying underneath being shown in FIG. 2A in a simplified manner compared to FIG. 1 to illustrate its elastic bending and to subsequently explain its mechanical properties selected for this purpose.
  • the direction of the contact force F is illustrated in FIG. 2A by a corresponding arrow, with dashed lines showing the elastically deformed first bar when it touches the second bar with its distal end when the optimal contact pressure is reached (form fit).
  • FIG. 2B shows a top view of the applicator 1 from FIG. 2A from the user's point of view and FIG. 2C shows its front view, which show the entire length (lateral extension) of the pressing edge 3 from two different viewing directions.
  • planar pressing edge 3 of the applicator 1 of FIG. 1 or 2A-2C is pulled starting at a first end of the double-sided adhesive strip (not shown) along the length of the adhesive strip to its second end.
  • Applicator 1 and protective paper of the double-sided adhesive strip or joining part are in contact and a contact pressure of between 0.15 and 1.0 MPa is exerted.
  • the planar pressing edge 3 of the applicator 1 has a contact surface which can be between 20 and 80 mm 2 in the present case due to the choice of its geometry.
  • the pressing edge 3 is formed for this purpose by an approximately circularly rounded profile with a suitable radius of curvature and has a length (lateral extent) of approximately 22 mm.
  • a contact surface of 40 mm 2 and a contact pressure F of 8 N With a contact surface of 40 mm 2 and a contact pressure F of 8 N, a contact pressure of 0.2 MPa is achieved; with a contact area of 20 mm 2 and a contact pressure F of 20 N, a contact pressure of 1.0 MPa.
  • the applicator 1 uses the deformation of the first bar 4 to show the user whether the contact pressure F is sufficient over the contact pressure period.
  • the necessary contact pressure F is defined via the beam parameters.
  • Beam parameters are its thickness, width, length and modulus of elasticity of the rectangular substrate of the first beam 4, as well as the length of the unloaded or rigid second beam 5 and the transversal (in Fig. 1 and 2A vertical) distance between the distal ends of the two beams 4 and 5 to each other.
  • the first bar 4 can have a length of about 60 mm with a width (measured along the pressing edge 3) of about 20 mm and a height perpendicular thereto of about 4 mm.
  • the length of the rigid second bar 5 is about 50 mm in the example.
  • the vertical distance to be overcome to achieve the optimal contact pressure can be about 5 mm with a modulus of elasticity of about 2346.5 N/mm2 (Young's modulus). The form fit of both beams 4 and 5 is thus achieved with a contact pressure F of approximately 20 N.
  • the application of pressure by means of a longitudinal pulling movement over the adhesive strip is important because with selective pressure, e.g. with fingers or thumbs, the contact area is typically reduced by a whole order of magnitude and is insufficient for the adhesive effect possible with the adhesive strip, such as representative ones consumer tests show.
  • both beams 4 and 5 can be connected in the region of their proximal ends by an elastically flexible film hinge 8 made of the same material as the applicator 1.
  • FIGS. 3A-3B each show a perspective view of a further development of the above first embodiment of the applicator 1, which makes it possible to secure an arrangement, fixation and orientation of both bars 4 and 5 parallel to one another for the bonding process by means of a clip fastener.
  • the clip closure is based on several snap-in hooks 9, which in this example are formed on the second beam 5, snapping into recesses 10 designed to match this on the first beam 4.
  • FIG. 3A shows an assembled one intended for the application State of the applicator 1 in which it is closed by the clip closure.
  • 3B shows the open state, in which the two beams 4 and 5 are only connected to one another by the elastically flexible film hinge 8 at their proximal ends.
  • FIG. 3A shows an assembled one intended for the application State of the applicator 1 in which it is closed by the clip closure.
  • 3B shows the open state, in which the two beams 4 and 5 are only connected to one another by the elastically flexible film hinge 8 at their proximal ends.
  • the second bar 5 is equipped with cavities on its side facing the first bar 4 in order to save weight and material. Otherwise, everything described above for FIGS. 1-2C can apply analogously to the applicator 1, so that a repeated description of the corresponding elements is dispensed with here.
  • FIGS. 4A and 4B each show a perspective view of another example of the applicator 1, which differs from the further development of FIGS. 3A-3B only in the design of the clip closure.
  • the snap-in hooks 9 are arranged in the first beam 4 and are designed as rounded projections.
  • the recesses 10 are formed in the second bar 5 and, in contrast to FIGS. 3A-3B, are hidden in the inner area of the bar so that they cannot be seen from the outside when the applicator 1 is assembled (closed) in FIG. 4A.
  • everything described above for FIGS. 1-3B applies analogously, so that a repeated description of the corresponding elements is dispensed with here.
  • FIG. 5 shows a perspective view of an alternative to a clip closure, in which both beams 4 and 5 are connected by a rigid web or longitudinal strut 12 in the area of their proximal ends.
  • the web or longitudinal strut 12 can be formed from the same material as the one-piece applicator 1 . It is designed to stabilize the bars 4 and 5 against one another in such a way that when the applicator 1 is pressed with its pressing edge 3, only the elastically flexible end section 13 of the first bar 4 can move with respect to the second bar 5 until the form fit is achieved , that the elastically flexible end section 13 of the first beam 4 strikes a free distal end 14 of the second beam 5. Otherwise, everything described above for FIGS. 1-4B can apply analogously to the applicator 1, so that a repeated description of the corresponding elements is dispensed with here.
  • Fig. 6 shows a perspective view of an applicator 1 according to an alternative second embodiment to the above first embodiment, in which a first handle component 15 merges at its end opposite the pressing edge 3 into a second handle component 16, which is not loaded by the contact pressure and is used for holding is rigidly formed by the user.
  • the first handle component 15 is designed to be elastically deformable in the sense described herein. The achievement of the optimal contact pressure is clearly visually recognizable from the outside in that the tops 15a and 16a of both handle components 15 and 16 facing the user during the bonding process are arranged at an angle to each other at contact pressures below the optimal contact pressure (as shown in Fig.
  • the non-loaded second handle component 16 has an elevation 18 which, due to its configuration shown, enables the user to intuitively correctly position the finger or thumb when carrying out the bonding process. In particular, it serves to ensure that the user does not rest his or her finger or thumb on the bending beam/respectively.
  • the first handle component 15 rests.
  • the elevation 18 is arranged on the second handle component in front of the connection point 17 .
  • everything above for Fig. 1-5 described apply mutatis mutandis, so that a repeated description of the corresponding elements is dispensed with here.

Landscapes

  • Coating Apparatus (AREA)

Abstract

L'invention concerne un applicateur (1) pour lier deux parties à assembler au moyen d'une bande auto-adhésive double face, comprenant : une poignée spatialement compacte (2) qui est conçue et dimensionnée pour tenir l'applicateur (1) avec une ou deux mains d'un utilisateur lors de la réalisation d'un processus de liaison adhésive, et un bord de pression (3) qui est disposé à une extrémité distale libre de la poignée (2) et est conçu pour être appliqué sur une surface de la bande auto-adhésive double face et pour presser celle-ci sur une surface d'une pièce à assembler afin d'engendrer une liaison adhésive requise de la bande adhésive sur cette pièce à assembler, caractérisé par le fait que l'applicateur (1) comprend un moyen de rétroaction intégré dans la poignée (2), le moyen de rétroaction étant conçu de telle sorte que l'obtention d'une force de pression optimale prédéterminée avec le bord de pression (3) est clairement visible par l'utilisateur depuis l'extérieur pendant la durée du processus de liaison adhésive.
PCT/EP2022/076539 2021-10-11 2022-09-23 Applicateur avec indication de force de pression suffisante WO2023061729A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22782538.7A EP4416095A1 (fr) 2021-10-11 2022-09-23 Applicateur avec indication de force de pression suffisante

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021126287.9A DE102021126287B3 (de) 2021-10-11 2021-10-11 Applikator zum Verkleben von zwei Fügeteilen mittels eines doppelseitig selbstklebenden Klebestreifens mit Anzeige ausreichender Anpresskraft
DE102021126287.9 2021-10-11

Publications (1)

Publication Number Publication Date
WO2023061729A1 true WO2023061729A1 (fr) 2023-04-20

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ID=83447318

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Application Number Title Priority Date Filing Date
PCT/EP2022/076539 WO2023061729A1 (fr) 2021-10-11 2022-09-23 Applicateur avec indication de force de pression suffisante

Country Status (3)

Country Link
EP (1) EP4416095A1 (fr)
DE (1) DE102021126287B3 (fr)
WO (1) WO2023061729A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006037372A1 (de) 2006-08-09 2008-02-14 Tesa Ag Handgerät zum Übertragen eines Klebstoff- oder Korrekturfilmes
US20080135159A1 (en) 2006-12-12 2008-06-12 3M Innovative Properties Company Stretch releasing pressure-sensitive adhesive articles and methods of using the same
US20130186570A1 (en) * 2012-01-19 2013-07-25 Nadco Tapes and Labels, Inc. Floor adhesive product applicator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254289B (en) 1991-04-05 1995-03-22 Gerber Garment Technology Inc Readily transferrable adherent tape and methods of use and making
WO2015026723A1 (fr) 2013-08-19 2015-02-26 3M Innovative Properties Company Applicateurs pour bande adhésive, telle qu'une bande adhésive double face
JP6988416B2 (ja) 2017-12-05 2022-01-05 トヨタ自動車株式会社 フィルム貼付治具及びフィルム貼付方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006037372A1 (de) 2006-08-09 2008-02-14 Tesa Ag Handgerät zum Übertragen eines Klebstoff- oder Korrekturfilmes
US20080135159A1 (en) 2006-12-12 2008-06-12 3M Innovative Properties Company Stretch releasing pressure-sensitive adhesive articles and methods of using the same
US20130186570A1 (en) * 2012-01-19 2013-07-25 Nadco Tapes and Labels, Inc. Floor adhesive product applicator

Also Published As

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EP4416095A1 (fr) 2024-08-21
DE102021126287B3 (de) 2022-10-20

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