EP2253180B1 - Dispositif d'application de matières adhésives - Google Patents

Dispositif d'application de matières adhésives Download PDF

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Publication number
EP2253180B1
EP2253180B1 EP09716507.0A EP09716507A EP2253180B1 EP 2253180 B1 EP2253180 B1 EP 2253180B1 EP 09716507 A EP09716507 A EP 09716507A EP 2253180 B1 EP2253180 B1 EP 2253180B1
Authority
EP
European Patent Office
Prior art keywords
liquefying
housing
adhesive
contact surface
feed
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.)
Active
Application number
EP09716507.0A
Other languages
German (de)
English (en)
Other versions
EP2253180A1 (fr
Inventor
Ingo H. Steinel
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.)
Steinel GmbH and Co KG
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Steinel GmbH and Co KG
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 Steinel GmbH and Co KG filed Critical Steinel GmbH and Co KG
Priority to PL09716507T priority Critical patent/PL2253180T3/pl
Priority to EP15179667.9A priority patent/EP2988572B1/fr
Publication of EP2253180A1 publication Critical patent/EP2253180A1/fr
Application granted granted Critical
Publication of EP2253180B1 publication Critical patent/EP2253180B1/fr
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • 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
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00523—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes provided with means to heat the material
    • B05C17/00546—Details of the heating means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids

Definitions

  • the present invention relates to a device, in particular manually manageable device for applying adhesives according to the preamble of the main claim.
  • a device commonly known in the trade as a "hot melt gun”
  • a hot melt gun is well known in the art and is known in the art DE 39 06 480 A1 described.
  • FIG. 1 Illustrated in this prior art document, a solid stick-shaped adhesive member is brought into contact with electrically heated liquefaction means by manual actuation, thereby melting the adhesive member at the end in a melt chamber and allowing the molten adhesive to be applied to an application site through a housing outlet.
  • the document from the prior art also discloses how the liquefying agent is realized as a metal element and heated by means inserted in lateral receiving portions of the metal element heating resistors.
  • Such a known device is usually supplied with mains power and thus wired, so that, by suitable design of the heating resistors, a comparatively high heating power can be brought to the metallic liquefaction body.
  • the liquefaction body realized from the electrical resistance material itself becomes a part of the melting chamber in which the end of an adhesive pin is melted by means of the melt contact surface formed by it.
  • a heat-conducting element which, depending on the form of implementation, a further development electrical contacting surface for the resistance material of the liquefaction body may be in the area of the melt contact surface and insofar as an electrode forming the melt contact surface is part of the liquefaction body) the heat input to or into the adhesive material takes place, with the obvious consequence of very fast heating time and thus short time to operational readiness, in (by avoiding any unnecessary heat transfer components) optimized electrical energy yield, so that this approach according to the invention is particularly suitable for battery operation.
  • the liquefaction body is geometrically designed so that, as a wall of the melting chamber, a sloping surface meets the end of the adhesive pin, which, by its tapered design, tapered design allows the flow of the liquefied adhesive through a passage opening to the housing outlet ,
  • an internal geometry of the liquefaction body or the melt contact surface has been found to be preferred, which tapers (at least in sections) in the manner of a funnel, cone, hollow cone or nozzle, wherein the melt contact surface sections also have a flat surface portion or even designed tapering in a pyramid can be.
  • the resistance material used for the realization of the liquefaction body is a PTC (positive temperature coefficient) characteristic barium oxide ceramic or a comparable resistance material, wherein, for optimized electrical energy input in such as a hollow cone or funnel-shaped element, the inner and outer surfaces of the body has a (large) surface coating for the realization of electrodes.
  • such a contact is made by coating with a metal material or other suitable electrical conductor material, in particular manufacturing processes of sputtering, sputtering, (gas phase) deposition or painting have been found to be favorable and preferred, in the context of Invention as "coating” also about a (corresponding to the contour of the melt contact surface or the offered by the liquefaction body inner melting chamber wall adapted) sleeve or the like electrically conductive element comes into consideration.
  • the liquefaction body is provided with a pair of preferably conical-sleeve-shaped electrodes on both sides, ie on its inner side presenting the melt contact surface, so that the electrical contacting via the outer surface (first electrode) or over the inner surface (second electrode, this then also forms the melt contact surface off) is realized.
  • each adapted to the contours of the liquefaction body electrodes are thin-walled relative to a wall thickness of the (eg ceramic) liquefaction body, typically the electrodes have a wall thickness ⁇ 15% of the wall thickness of Liquefaction body, preferably ⁇ 10%, and more preferably ⁇ 5% of the wall thickness of the liquefaction body, so that with a typical wall thickness of, for example, 1.5 mm of the PTC liquefaction body, a typical electrode thickness is about 0.1 to 0.2 mm.
  • the inclusion and attachment of the liquefaction body in the housing is preferably isolated (heat), which may be provided for thermal insulation in the mechanical realization suitable air chambers or air cushion. Also it appears, especially from the point of view of mass production, favorable to encapsulate the liquefaction body with a suitable (including electrically insulating) material and expose only corresponding electrical connection areas for contacting or to offer a direct wiring.
  • the unit resiliently yields along the feed axis, insofar as such adverse damage can be prevented or mitigated by unduly large manual application of force.
  • a retraction device which, in accordance with further development, exerts a pulling force directed counter to the feed direction onto the adhesive element.
  • a device designed in this way has the additional advantage that, after completing an application process (and terminating a corresponding, manual or automatic feed force on the adhesive element which presses it towards the melt contact surface), the adhesive element is pulled counter to the feed direction by the predetermined retraction stroke.
  • the present invention of directly heating a liquefier body member (suitably providing an inclined melt contact surface) by itself and using it to form a fusion region (melting chamber) of the tackifier rod achieves the intended purpose of minimizing heating times with optimized, to combine for a battery operation suitable energy consumption.
  • the present invention allows in the manner shown, the simple realization of a highly user-friendly adhesive applicator device, which will make accessible to the traditional only network-bound devices accessible material "hot melt adhesive" in other areas of application.
  • FIG. 1 shows, as with a typical wall thickness of 1 to 2 mm and a typical opening diameter of about 12 mm, tapered to an outlet width of about 3 to 4 mm, formed of a barium oxide ceramic PTC condensing body 10 is tapered tapered , By sputtering, this body 10 is provided with a circumferential metallization, wherein, for potential separation, two circumferential separating cuts 12, 14 separate the metallization into a first, primary outer-shell-side electrode 16 and an inner electrode 18.
  • the inner wall portion (melt contact surface) 19 is, as in the sectional view of Fig. 1 shown, relative to the supply direction descriptive center axis 21 inclined by an angle 19 of approximately 20 °.
  • these electrodes are supplied with an operating voltage (by mechanical and electrical peripherals not shown in detail) and thereupon heat up the PTC resistance material of the body 10 (a typical temperature-resistance profile illustrates FIG FIG. 4 ; the PTC characteristic leads to an increase of the resistance with increasing temperature, which in turn, in the manner of a temperature control behavior, sinks the current flowing through the PTC resistor body).
  • the liquefaction body shown in FIG. 1 forms a cone-shaped melt contact surface tapering toward a tapered passage opening 20 for the front end of a (typically cylindrical) glue stick 22, as indicated by the dashed line in FIG FIG. 1 indicated.
  • the virtually immediate heat transfer from the heat generator (resistor element 10) to the solid adhesive 22 leads to very short heating and thus melting times and optimum energy utilization. In practical operation (in battery mode), gluing can be carried out after approx. 10 to 15 seconds.
  • FIGS. 2, 3 illustrate a slightly varied embodiment: in turn, analogous to the representation of FIG. 1
  • condenser body 30 formed in a conically tapering manner is provided with a first electrode coating 32 in the inner cone region (simultaneously melt contact surface) with an electrode surface 34, which furthermore continues on the outlet side through a tapered passage opening 36 of the body 30 to an applicator tip 38.
  • the inner coating 34, z At the opposite (ie expanded) introduction region of the liquefaction body 30, the inner coating 34, z.
  • FIGS. 5 to 10 will be described in the following three other embodiments for the realization of the invention, which are structurally similar to each other, differ only in the central region of the adhesive element guide and are described summarily together.
  • the same reference numerals and / or the non-mention of a respective feature of an embodiment are to be understood as an identical realization in the respective other embodiments of the FIGS. 5 to 8 ,
  • FIG. 5 in the schematic longitudinal view in the lower half of the housing of the device for applying adhesives according to the third embodiment in an external view, the upper half of the device with the housing (or removed housing shell).
  • the FIG. 6 shows the sectional view along the section line VI-VI in FIG. 5 ,
  • this embodiment shows (i.ü. also the other embodiments of the FIGS. 7 to 10 ) a two-part housing shell 50, which extends in each case in one piece over the entire length of the device.
  • Two housing halves are aligned with each other, aligned by pin guides or bores 52, 54, and in the exemplary embodiment shown, the pair of housing shells are connected by elastic rings 56 (in the housing inlet area) and 58 (in the front application area).
  • a conical section Liquefaction body 10 made of barium oxide ceramic as PTC, as described above, which is provided in the region of its outer shell with a first cone electrode 60 undetachable, in its inner shell region with a second hollow cone-shaped electrode 62, which in the in FIG. 6 shown way through the housing outlet into a cylindrical applicator tip region 64 extends and ends an outlet nozzle 66 (diameter eg 1mm) offers.
  • the inner sleeve 62 and the outer sleeve 60 are non-detachably connected to the ceramic body 10 by a reflow soldering process (which is more preferably carried out in a common processing step for both electrodes) and are in a manner not shown in detail in the figures with a portable power source via a the housing outside sitting (not shown) electrically contacted switch.
  • the figure additionally clarifies a circumferential cavity 63 as a heat-insulating region between the outer electrode 60 and the housing 50.
  • FIG. 6 illustrates right of the PTC element realized as a silicone tube hollow cylindrical guide portion 68 through which the round rod-shaped adhesive member (not shown) is guided; this is dimensioned such that a simple sliding of the adhesive element can take place on the inner wall of the hose element 68, wherein a lip-shaped annular shoulder 70 provided in the right-hand region sealingly encloses the adhesive element (and insofar acts as a barrier against possibly exiting molten adhesive material).
  • the guide member 68 is surrounded by a sleeve member 72 (preferably realized, as well as the pair of housing shells 50, made of a heat-resistant plastic material, such as Ryton) engages via a ring shoulder 74 in the element 68 and is supported via a second shoulder 76 and against the force of a compression spring 78 against an inner annular shoulder 80 of the housing.
  • a sleeve member 72 preferably realized, as well as the pair of housing shells 50, made of a heat-resistant plastic material, such as Ryton
  • FIG. 6 also discloses a disadvantageous drip-reducing retraction device for the (rod-shaped) adhesive element:
  • a circumferential silicone rubber molding 84 held in the housing so that it is pressed against the force of a second compression spring 86 (which is supported by an inner housing annular shoulder 88) in the direction of the inlet end 82 of the housing, for this purpose, the helical compression spring engages in a suitably sized Ring groove of the rubber molding 84 a.
  • the molded body 84 has a central, tapered passage area 90, which is adapted to an outer diameter of an adhesive stick to be introduced, that by the action of the rubber material of the body 84, a detent effect arises, while a kraftbeaufschlagtes passing through in the adhesive operation (ie a pressing of the glue stick in the FIG. 6 in the left direction in the direction of the outlet 66) is not hindered. Rather, the rubber-shaped element 84 has the task, in no longer successful Kraftbeaufschlagung the adhesive pin in the direction of adhesive or feed retraction (ie, a movement of the adhesive pin in the direction of the right FIG.
  • the third and fourth embodiment differs from the embodiment of FIGS. 5, 6 merely by a slightly different embodiment of the central region of the adhesive guide:
  • the fourth embodiment reference is made to the FIG. 7, FIG. 8 , one tubular, hollow cylindrical silicone element 68 a provided which similar to the embodiment of FIGS. 5, 6 is designed. However, this is not surrounded by a cylindrical solid plastic element 72, but carries only behind a ring shoulder 92 a ring 94 of solid plastic material, which in turn, analogous to the functionality of FIG. 6 , serves as an abutment for the compression spring 78 for supporting against the annular housing inner shoulder 80. In this way, in comparison to the realization of the FIG. 6 , Make the middle part less expensive, in particular eliminates the additionally suitable plastic material to be sprayed part 72nd
  • FIG. 10 Another alternative form of realization shows the FIG. 10 , Here again takes a hollow cylindrical silicone body 68b the task of both the leadership, as well as the suspension true, because a radially widening outer wall portion (radial projection) 96 of the element 68b serves both to support against the inner wall paragraph 80 of the housing, as well as a spring element (due the inherent elasticity of the silicone rubber material used for the realization).
  • the design effort can be further simplified, being provided, for example by a (not shown) disc or the like.
  • Distance element between the housing portion 80 and the right-hand wall portion of the projection 96, the spring or elastic behavior is adjustable or influenced ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Fuses (AREA)

Claims (15)

  1. Dispositif d'application de matières adhésives avec un boîtier configuré pour contenir un élément en matière plastique solide (22) en forme de tige ou de barre qui coopère avec des moyens de fluidification (10) produisant électriquement de la chaleur, qui présente du côté de l'extrémité une sortie de boîtier pour l'expulsion de la matière adhésive fluidifiée par les moyens de fluidification, caractérisé en ce que les moyens de fluidification sont réalisés sous la forme d'un corps de fluidification (10) réalisé à partir d'un matériau de résistance électrique produisant la chaleur lui-même et sans autres générateurs de chaleur externes supplémentaires, qui présente, pour la coopération avec une section terminale du côté frontal de l'élément de matière adhésive une face de contact de fusion (18) qui, par rapport à un axe (21) s'étendant le long d'un axe d'alimentation de l'élément de matière adhésive, est inclinée sur cet axe d'un angle (19) de > 0° et < 90°, de préférence > 5° et < 40°, de préférence encore > 10° et < 30°.
  2. Dispositif selon la revendication 1, caractérisé en ce que le corps de fluidification (10) se rétrécit le long de la direction d'alimentation jusqu'à une ouverture de passage (20) dirigée vers la sortie de boîtier pour la matière adhésive fluidifiée dans le corps de fluidification.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la face de contact de fusion est réalisée sous la forme d'une face intérieure décroissante (18) et d'une face ou d'une partie du corps de fluidification configuré au moins en partie en forme de buse, d'entonnoir, de cône creux et/ou de pyramide et/ou muni d'au moins une partie plane de la face de contact.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le corps de fluidification présente une zone de contact électrique plate (16, 18).
  5. Dispositif selon la revendication 4, caractérisé en ce que la zone de contact électrique plate (18) est prévue au moins en partie dans la région de la face de contact de fusion, de telle manière qu'il se produise une fluidification sur ou à proximité de la zone de contact.
  6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que la zone de contact électrique plate (16, 18) est déposée par revêtement, en particulier par métallisation, précipitation, laquage et/ou pulvérisation cathodique avec ou d'un matériau métallique sur le matériau de résistance de préférence céramique du corps de fluidification ou est réalisée par au moins un élément conducteur électrique en forme de douille conique relié superficiellement au corps de fluidification.
  7. Dispositif selon la revendication 6, caractérisé en ce que la zone de contact électrique plate présente, pour la réalisation d'un dipôle électrique, des éléments conducteurs en forme de buse, d'entonnoir ou de pyramide prévus de part et d'autre du corps de fluidification, comme paire d'électrodes de contact.
  8. Dispositif selon la revendication 7, caractérisé en ce qu'au moins un des éléments conducteurs prévus de part et d'autre du corps de fluidification est assemblé de façon inséparable au corps de fluidification en particulier par brasage ou collage.
  9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le corps de fluidification (10) présente une caractéristique de résistance électrique opérant une régulation de la température.
  10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que les moyens de fluidification sont alimentés en courant électrique indépendamment du réseau par une unité de batterie logée dans le boîtier, en particulier par une unité de batterie réalisée sous forme modulaire amovible et/ou rechargeable.
  11. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le corps de fluidification est prévu de façon thermiquement isolée dans le boîtier, en particulier par la formation d'un coussin d'air l'entourant au moins partiellement.
  12. Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que le corps de fluidification présentant une pointe de dépôt du côté de la sortie est monté de façon élastique dans le boîtier le long de l'axe d'alimentation.
  13. Dispositif selon l'une quelconque des revendications 1 à 12, caractérisé en ce que des moyens de guidage pour l'élément de matière adhésive sont configurés de telle manière que le corps de fluidification et l'élément de matière adhésive soient en contact l'un avec l'autre par la face de contact de fusion pendant l'expulsion de la matière adhésive fluidifiée par un actionnement manuel, l'action d'un levier ou d'un ressort.
  14. Dispositif selon la revendication 13, caractérisé par des moyens de retrait, qui sont configurés de façon à exercer sur l'élément de matière adhésive une force de traction dirigée à l'opposé de la direction d'alimentation, de telle manière que l'élément de matière adhésive non chargé dans la direction d'alimentation soit déplacé d'une course longitudinale prédéterminée en direction opposée à la direction d'alimentation.
  15. Dispositif selon l'une quelconque des revendications 1 à 14, caractérisé en ce que le boîtier présente une tête de connexion actionnable manuellement de l'extérieur pour une activation et/ou une désactivation électrique des moyens de fluidification par connexion ou déconnexion d'un courant de fonctionnement pour le corps de fluidification.
EP09716507.0A 2008-03-06 2009-03-06 Dispositif d'application de matières adhésives Active EP2253180B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL09716507T PL2253180T3 (pl) 2008-03-06 2009-03-06 Urządzenie do nakładania kleju
EP15179667.9A EP2988572B1 (fr) 2008-03-06 2009-03-06 Dispositif d'application de matières adhésives

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008003259U DE202008003259U1 (de) 2008-03-06 2008-03-06 PTC-Element
PCT/EP2009/001614 WO2009109393A1 (fr) 2008-03-06 2009-03-06 Dispositif d’application de matières adhésives

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP15179667.9A Division EP2988572B1 (fr) 2008-03-06 2009-03-06 Dispositif d'application de matières adhésives

Publications (2)

Publication Number Publication Date
EP2253180A1 EP2253180A1 (fr) 2010-11-24
EP2253180B1 true EP2253180B1 (fr) 2015-08-05

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ID=40740117

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EP09716507.0A Active EP2253180B1 (fr) 2008-03-06 2009-03-06 Dispositif d'application de matières adhésives
EP15179667.9A Active EP2988572B1 (fr) 2008-03-06 2009-03-06 Dispositif d'application de matières adhésives

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15179667.9A Active EP2988572B1 (fr) 2008-03-06 2009-03-06 Dispositif d'application de matières adhésives

Country Status (4)

Country Link
EP (2) EP2253180B1 (fr)
DE (2) DE202008003259U1 (fr)
PL (1) PL2253180T3 (fr)
WO (1) WO2009109393A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022211279A1 (de) 2022-10-25 2024-04-25 Robert Bosch Gesellschaft mit beschränkter Haftung Klebevorrichtung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008006619A1 (fr) * 2006-07-13 2008-01-17 Steinel Gmbh Dispositif d'application de colle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1245812B (de) * 1961-01-27 1967-07-27 Bostik Ges Mit Beschraenkter H Verfahren und Handauftragsvorrichtung zum Auftragen eines Stranges eines thermoplastischen Materials
DE2248699A1 (de) * 1972-10-04 1974-04-18 Volker Frerk Geraet zur verarbeitung von schmelzklebstoffen
FR2495024A1 (fr) * 1980-12-03 1982-06-04 Thenance Jean Claude Dispositif concernant une chambre de fusion mobile pour pistolets a colle thermo-fusible
JPS62140385A (ja) * 1985-12-16 1987-06-23 三理株式会社 尖鋭発熱体
US4948944A (en) * 1988-12-19 1990-08-14 Minnesota Mining And Manufacturing Company Compact heater assembly for a hot melt applicator
DE3906480A1 (de) 1989-03-01 1990-09-13 Henkel Kgaa Heizkoerper fuer elektrowaermegeraete, insbesondere fuer eine heisskleber-pistole, mit wenigstens einem temperaturabhaengigen widerstand
EP0423388A1 (fr) * 1989-10-18 1991-04-24 STEINEL Entwicklungs-GmbH für Elektrotechnik und Elektronik Pistolet à colle chauffé électriquement
US5688421A (en) * 1991-10-11 1997-11-18 Walton; William M. Dispenser for heat-liquefiable material with contiguous PTC heater and heat exchanging member
US6223950B1 (en) * 1998-12-23 2001-05-01 Bernard C. Lasko Bulk feed glue gun

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008006619A1 (fr) * 2006-07-13 2008-01-17 Steinel Gmbh Dispositif d'application de colle

Also Published As

Publication number Publication date
DE202008003259U1 (de) 2009-07-16
PL2253180T3 (pl) 2016-01-29
DE202009019154U1 (de) 2017-03-27
EP2253180A1 (fr) 2010-11-24
EP2988572A1 (fr) 2016-02-24
EP2988572B1 (fr) 2019-06-05
WO2009109393A1 (fr) 2009-09-11

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