EP1018585B1 - Kelle - Google Patents

Kelle Download PDF

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Publication number
EP1018585B1
EP1018585B1 EP00200024A EP00200024A EP1018585B1 EP 1018585 B1 EP1018585 B1 EP 1018585B1 EP 00200024 A EP00200024 A EP 00200024A EP 00200024 A EP00200024 A EP 00200024A EP 1018585 B1 EP1018585 B1 EP 1018585B1
Authority
EP
European Patent Office
Prior art keywords
trowel
spacer means
teeth
layer
working edge
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
EP00200024A
Other languages
English (en)
French (fr)
Other versions
EP1018585A1 (de
Inventor
Bernhard Karl Hilgenbrink
Kurt Hjornet
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.)
Akzo Nobel NV
Original Assignee
Akzo Nobel NV
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 Akzo Nobel NV filed Critical Akzo Nobel NV
Priority to EP00200024A priority Critical patent/EP1018585B1/de
Publication of EP1018585A1 publication Critical patent/EP1018585A1/de
Application granted granted Critical
Publication of EP1018585B1 publication Critical patent/EP1018585B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like

Definitions

  • the present invention relates to a trowel for the application of a curable layer to a surface, the trowel having a main body with at least one working edge comprising alternating teeth and notches, which trowel further comprises spacer means standing proud of the teeth (cf. for example US 2 167 996 A).
  • Such a trowel is also known from Australian patent application AU-A 67677/90.
  • Such trowels are used to apply a viscous, adhesive intermediate layer of mortar, glue, or the like to a surface, e.g., a floor.
  • the spacer means keep the teeth of the trowel at a distance from the surface to be treated.
  • the applied intermediate adhesive layer integrally comprises a solid base layer and a profiled upper layer, which are both applied in a single one-step operation.
  • the solid base layer serves primarily to level the surface to be treated and to fill cracks and uneven spots. The more uneven the treated surface is, the thicker the base layer must be.
  • the profiled upper layer shows a pattern of troughs and ledges or peaks, reflecting the profile of the working edge.
  • tiles, panels or the like are applied to the adhesive intermediate layer, causing the material of the ledges to flow into the troughs.
  • the profiling of the upper layer ensures that the amount of adhesive material forced out from under the edges of the tiles or panels, is kept to a minimum.
  • the spacer means in the trowel according to AU-A 67677/90 are attached at the outer ends of the working edge, next to the outermost teeth.
  • the spacer means leave traces where they contact the treated surface.
  • the user will apply the layer step by step to subsequent adjacent partial areas.
  • the spacer means will more or less pass the same trace twice, so that locally there will be a deficit of material in the base layer. Therefore, this known trowel is not suitable for applying e.g. a leaktight waterproof layer or a vapour barrier.
  • the spacer means are attached to the outermost teeth, the trace of the spacer is adjacent to a trough in the profiled upper layer. Consequently, there is only little material to compensate the trace of the spacer. This leads to a non-uniform distribution of the glue or mortar and a discontinuous base layer.
  • the object of the invention is to provide a trowel for integrally applying a layer comprising a solid base layer and a profiled upper layer, showing an optimized distribution of the material of the applied layer.
  • a trowel having a toothed working edge comprising spacer means and alternating teeth and notches, the spacer means being positioned in or next to a notch.
  • This has the advantage that in the applied layer, the trace of the spacer means is adjacent to a ledge left by a notch, so there is sufficient material to compensate the spacer trace. Due to the thus improved distribution of the layer material, the trowel according to the present invention makes it possible to apply in one step e.g. a leaktight layer of waterproof material and/or a vapour barrier layer.
  • the spacer means may be positioned in or next to an end gap at the outer end of the working edge, having only one neighboring tooth. However, it is preferred that the spacer means is positioned in a gap between two adjacent teeth, at a distance from the outer ends of the working edge. This has the advantage that the spacer means normally will not pass the same trace twice, so that a further improved distribution of the applied material can be achieved.
  • the notches or gaps in which the spacer means are positioned are preferably somewhat larger than the other notches.
  • the enlarged gaps will leave extra material to compensate for the material displaced by the spacer means.
  • the enlargement preferably consists of a greater depth of the gaps concerned, so that when a tile or panel is placed on the adhesive layer, first the trace of the spacer means will be compensated before the ledges are forced to flow into the troughs.
  • the width of the gaps may be enlarged while the depth is the same as for the other gaps. In another alternative embodiment, the depth and the width of the gaps are both enlarged.
  • the enlargement of the gaps concerned preferably corresponds to the thickness of the spacer means.
  • the spacer means may be attached to one of the adjacent teeth. In that case, the spacer means can be attached more firmly and easily to the trowel. However, it is preferred that the spacer means are placed at a distance from two adjacent teeth, preferably in the middle of the gap between two adjacent teeth. This has the advantage that the incision made by the spacer means is surrounded by more material that can fill up the incision.
  • the spacer means may for example be attached by clamping the working edge in a tightly fitting longitudinal slot in the spacer, or by gluing, welding or any other fastening means.
  • the spacer means may for instance be replaceable by other spacer means, for example if another layer thickness is desired.
  • the spacer means are substantially plate shaped and positioned at substantially right angles to the working edge.
  • the trace of the spacer means in the adhesive layer will be as thin as possible.
  • the layer to be applied must serve as a waterproof layer or as a vapour barrier.
  • a trowel is tilted by the user during application of a layer.
  • the angle of tilt generally varies during the application between about 50 and about 80 degrees. Near corners or edges, the angle of tilt is also different. This leads to a variation of the layer thickness. Therefore, it is preferred that the projecting outer ends of the spacer means are rounded or chamfered, preferably in such a way that the trowel can be tilted around an axis of rotation which substantially coincides with the line defined by the outer ends of the teeth. It is particularly preferred that the outer ends are semi-circular. This has the advantage that the thickness of the applied layer does not vary when the trowel is tilted through a larger or smaller angle by the user, so a constant layer thickness is obtained.
  • the spacer means may be adjustable in length.
  • the distance between the outer ends of the spacer means and the outer ends of the teeth is determined by the desired thickness of the base layer, and thus is dependent on the surface that needs to be treated as well as on the used adhesive material. Generally, it is convenient if the distance between the outer ends of the spacer means and the outer ends of the teeth is between 0,5 and 6 millimetres. However, smaller or larger distances may also be used, if so desired.
  • the length of the working edge and the number, size, shape, and spacing of the teeth may be varied, as required.
  • the gaps are normally rectangular, but may alternatively have another shape, e.g. a V-shape, the teeth reflecting a corresponding shape.
  • the teeth and/or the gaps may have rounded or chamfered corners.
  • the trowel may have more than one working edge. If the trowel has more than one working edge, the different working edges may have a different number of teeth and/or comprise differently sized, shaped and/or spaced teeth, which may be dependent on the type of surface that is treated, the type of layer material or the type of covering that is applied.
  • the main body of the trowel may be plate-shaped, but it may also have any other shape, if so desired, as long as there is at least one working edge.
  • the main body of the trowel comprises a handle.
  • the working edge is made of a metal.
  • Stainless steel is preferred.
  • the spacer means may be made of a wear resistant material, for example tungsten steel.
  • FIG. 1 shows a tool or trowel 1 according to the invention.
  • the trowel 1 can be used for the application of a curable adhesive intermediate layer to a surface, such as a floor, wall or ceiling.
  • the intermediate layer may for example be a waterproof layer and/or a vapour barrier. After application of the layer, tiles, panels.or another floor or wall covering may be applied and bonded to it.
  • the trowel 1 comprises a main body 2 with a handle 3 and a straight working edge 4 comprising teeth 5, which are attached to the straight working edge 4 with gaps 6 between them.
  • the trowel 1 further comprises spacers 7 projecting in the same direction as the teeth 5 and standing proud of the teeth 5.
  • the spacers 7 are positioned in slightly enlarged gaps 8 between two adjacent teeth 5. In this embodiment of figure 1, the gaps 8 are enlarged by a greater depth.
  • the plate-shaped spacers 7 may have a thickness of, for example, 1 millimetre or less.
  • the spacers 7 are positioned at substantially right angles to the working edge 4.
  • Figure 2 shows in detail a part of the working edge 4 and two of its teeth 5. Between the teeth 5 there is a gap 8, which is slightly deeper than the gaps at the respective other sides of the teeth 5.
  • a spacer 7 is positioned.
  • the plate-shaped spacer 7 is positioned perpendicular to the working edge 4.
  • the spacer 7 has a T-shaped body turned upside-down with a longitudinal part 9 extending from the working edge 4 to beyond the line defined by the outer ends of the teeth 5.
  • the spacer 7 comprises a broadened, semi-circular end part 10.
  • a slot 11 in lengthwise direction of the spacer 7 is present.
  • the working edge 4 is clamped by a tight fitting.
  • the length of the slot 11 is such that, after attachment of the spacer 7, the rotational center point of the semi circular part 10 is in line with the line defined by the outer ends of the teeth 5.
  • Figure 3 shows a surface 12, for example a floor.
  • a curable layer 13, for instance a waterproof layer or vapour barrier, is applied to the floor 12.
  • the layer 13 reflects the pattern of the toothed working edge 4 of the trowel 1.
  • the pattern of the curable layer 13 shows troughs 14 and longitudinal ledges 15.
  • the longitudinal ledges 16, which are formed by the enlarged gaps 8, are higher than the other ledges 15.
  • the higher ledges 16 are cut in two in the longitudinal direction by a trace 17 left behind by the spacer 7.
  • the trace 17 extends from the top of the enlarged ledge 16 to the treated surface 12.
  • FIGs 4 and 5 show a detail of an alternative embodiment of a trowel according to the invention.
  • the spacers 7 are attached directly to an adjacent tooth 5. Such a trowel would produce a layer as shown in figure 6.
  • the trace 17 of the spacer 7 is located directly adjacent to an enlarged longitudinal ledge 16.
  • Figures 7A and B show in side views two different types of spacers that may be used for a trowel according to the invention.
  • the spacer 18 also has a longitudinal part 19 and a broadened outer end part 20.
  • the broadened part 20 is rectangular, the downwardly directed comers 21 being chamfered.
  • the spacer 22 of figure 7B is much the same as the spacer 7 of the trowel of figure 1.
  • the semi-circular outer end 23 is not broader than the longitudinal part 24.
  • the working edge 4 of the trowel 1 in figure 1 shows rectangular notches 6 and teeth 5.
  • the working edge 25 in figure 8A shows triangular teeth 26 and notches 27.
  • a spacer 28 is placed in a slightly deeper triangular notch 29.
  • Figure 8B shows a working edge 30 with rectangular teeth 31 and notches 32 having rounded upper sides 33.
  • Figure 8C shows a working edge 34 with rectangular teeth 35 and notches 36, the teeth 35 having rounded outer ends 37.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Coating Apparatus (AREA)
  • Confectionery (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Lubricants (AREA)

Claims (11)

  1. Kelle (1) zum Auftragen einer Schicht auf eine Oberfläche, wobei die Kelle einen Hauptkörper (2) mit wenigstens einer Arbeitskante (4, 25, 30, 34) mit abwechselnden Zähnen (5, 26, 31, 35) und Kerben (6, 8, 27, 29, 32, 36) aufweist, wobei die Kelle weiterhin Abstandshaltereinrichtungen (7, 18, 22) umfasst, die über die Zähne hinausragen, dadurch gekennzeichnet, dass sich wenigstens eine der Abstandshaltereinrichtungen in oder neben einer Kerbe in einem Abstand zu wenigstens einem der benachbarten Zähne befindet.
  2. Kelle gemäß Anspruch 1, dadurch gekennzeichnet, dass sich wenigstens eine der Abstandshaltereinrichtungen (7, 18, 22) in einer Kerbe oder Lücke (8, 29, 32, 36) zwischen zwei benachbarten Zähnen (5, 26, 31, 35) befindet.
  3. Kelle gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kerben (8, 29, 32, 36), in denen sich die Abstandshaltereinrichtungen befinden, etwas größer als die anderen Kerben (6, 27, 32, 36) sind.
  4. Kelle gemäß Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Abstandshaltereinrichtungen (7, 18, 22) in einem Abstand von den benachbarten Zähnen (5, 26, 31, 35) platziert sind.
  5. Kelle gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Abstandshaltereinrichtungen (7, 18, 22) im Wesentlichen plattenförmig sind und sich im Wesentlichen in rechten Winkeln zur Arbeitskante (4, 25, 30, 34) befinden.
  6. Kelle gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die hervorragenden äußeren Enden (10, 23) der Abstandshaltereinrichtungen (7, 22) abgerundet sind.
  7. Kelle gemäß Anspruch 6, dadurch gekennzeichnet, dass die hervorragenden äußeren Enden (10, 23) der Abstandshaltereinrichtungen (7, 22) halbkreisförmig sind und eine Drehachse haben, die im Wesentlichen mit der durch die äußeren Enden der Zähne definierten Linie zusammenfällt.
  8. Kelle gemäß einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die hervorragenden äußeren Enden (20) der Abstandshaltereinrichtungen abgeschrägt sind.
  9. Verwendung einer Kelle gemäß einem der vorstehenden Ansprüche zum Auftragen einer härtbaren Schicht auf eine Oberfläche.
  10. Verfahren zum Auftragen eines Klebstoffs auf eine Oberfläche in einer Schicht mit einer massiven Grundschicht und einer profilierten oberen Schicht, wobei man eine Kelle gemäß den Ansprüchen 1 bis 8 verwendet, die einen Hauptkörper (2) mit wenigstens einer Arbeitskante (4, 25, 30, 34) mit abwechselnden Zähnen (5, 26, 31, 35) und Kerben (6, 8, 27, 29, 32, 36) aufweist und Abstandshaltereinrichtungen (7, 18, 22) umfasst, die über die Zähne hinausragen, wobei sich wenigstens eine der Abstandshaltereinrichtungen in oder neben einer Kerbe in einem Abstand zu wenigstens einem der benachbarten Zähne befindet, dadurch gekennzeichnet, dass die Abstandshaltereinrichtungen durch eine Rippe des Klebstoffs, die von einer Kerbe der Arbeitskante der Kelle hinterlassen wird, oder neben einer solchen gezogen werden.
  11. Verfahren gemäß Anspruch 10, dadurch gekennzeichnet, dass eine Bodenbedeckung in einer solchen Weise auf die Klebstoffschicht gelegt wird, dass das Material von den Rippen, die von den Kerben der Kelle hinterlassen werden, die Spur des Abstandshalters schließt und in die Rinnen, die von den Zähnen der Kelle hinterlassen werden, hineingedrückt wird.
EP00200024A 1999-01-06 2000-01-05 Kelle Expired - Lifetime EP1018585B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00200024A EP1018585B1 (de) 1999-01-06 2000-01-05 Kelle

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99200016 1999-01-06
EP99200016 1999-01-06
EP00200024A EP1018585B1 (de) 1999-01-06 2000-01-05 Kelle

Publications (2)

Publication Number Publication Date
EP1018585A1 EP1018585A1 (de) 2000-07-12
EP1018585B1 true EP1018585B1 (de) 2003-08-27

Family

ID=27799005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00200024A Expired - Lifetime EP1018585B1 (de) 1999-01-06 2000-01-05 Kelle

Country Status (6)

Country Link
EP (1) EP1018585B1 (de)
AT (1) ATE248272T1 (de)
DE (1) DE60004711T2 (de)
DK (1) DK1018585T3 (de)
ES (1) ES2204443T3 (de)
PT (1) PT1018585E (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009039049A1 (de) 2009-08-28 2011-03-03 Karamahmut, Muhammed Werkzeug zum Auftragen einer Materialschicht

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK200100155U3 (da) 2001-06-13 2002-09-27 Peter Rytter Apparat til udlægning af klæbemiddel
FR2919007A1 (fr) * 2007-07-20 2009-01-23 Bostik S A Sa Applicateur a spatule crantee et composition adhesive pour pose parquet
WO2008015297A2 (en) * 2007-11-09 2008-02-07 Eurodesign Scandinavia Ab Device for spreading an adhesive
CN102274816A (zh) * 2010-06-12 2011-12-14 上海烟草集团有限责任公司 一种涂布胶水的方法及工具
EP2587970B1 (de) 2010-07-02 2015-04-01 Udviklingsselskabet AF 2002 APS Vorrichtung zur verteilung eines haftstoffes
US9752333B2 (en) 2013-11-05 2017-09-05 The Boeing Company Trowel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE674083C (de) * 1938-02-22 1939-04-04 Johann Reiners Spachtel zur Herstellung erhabener Flaechenverzierungen in gleichmaessiger Staerke
US2167996A (en) * 1938-10-03 1939-08-01 Clement E Pritz Trowel
FR2453962A1 (fr) * 1979-04-10 1980-11-07 Omerin Michel Spatule reglable pour l'application d'un produit pateux
GB9010144D0 (en) * 1990-05-04 1990-06-27 Rose Derrick D Tiling trowel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009039049A1 (de) 2009-08-28 2011-03-03 Karamahmut, Muhammed Werkzeug zum Auftragen einer Materialschicht

Also Published As

Publication number Publication date
EP1018585A1 (de) 2000-07-12
DE60004711D1 (de) 2003-10-02
ES2204443T3 (es) 2004-05-01
DE60004711T2 (de) 2004-07-01
ATE248272T1 (de) 2003-09-15
DK1018585T3 (da) 2003-12-15
PT1018585E (pt) 2004-01-30

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