WO2019046576A1 - Ensemble bac d'injection de coulis doté d'une bague de renfort - Google Patents

Ensemble bac d'injection de coulis doté d'une bague de renfort Download PDF

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Publication number
WO2019046576A1
WO2019046576A1 PCT/US2018/048845 US2018048845W WO2019046576A1 WO 2019046576 A1 WO2019046576 A1 WO 2019046576A1 US 2018048845 W US2018048845 W US 2018048845W WO 2019046576 A1 WO2019046576 A1 WO 2019046576A1
Authority
WO
WIPO (PCT)
Prior art keywords
grouting
pans
pad
assembly
floor
Prior art date
Application number
PCT/US2018/048845
Other languages
English (en)
Inventor
Tchavdar V. Tchakarov
Original Assignee
Husqvarna Construction Products North America, Inc.
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
Priority claimed from US15/690,360 external-priority patent/US10246885B2/en
Application filed by Husqvarna Construction Products North America, Inc. filed Critical Husqvarna Construction Products North America, Inc.
Priority to CN201880056641.5A priority Critical patent/CN111051628A/zh
Publication of WO2019046576A1 publication Critical patent/WO2019046576A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/165—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • E04F15/126—Terrazzo floors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/20—Implements for finishing work on buildings for laying flooring
    • E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
    • E04F21/245—Rotary power trowels, i.e. helicopter trowels

Definitions

  • the present disclosure relates generally to finishing of workpiece surfaces, and more particularly to filling voids and/or pin holes in floor surfaces with a grouting pan assembly having a reinforcement ring.
  • Composite surfaces such as epoxy, terrazzo, or cementitious floors generally include a decorative aggregate most commonly marble chips or any suitable aggregate supported in a matrix material.
  • a solid, level foundation typical of concrete is established.
  • a subflooring layer is formed on top of the foundation. Historically, this layer is a sandy concrete layer.
  • Metal divider strips may be partially embedded in the concrete before it cures to provide panels in the surface.
  • a top layer including the matrix material with the decorative aggregate is placed into each of the panels.
  • the matrix material was a cementitious material but now may be a polymer-based matrix such as epoxy-based.
  • the matrix material may be color- pigmented.
  • the decorative aggregate while typically marble chips, may be any suitable aggregate e.g., glass, porcelain, concrete, metal, mother of pearl, abalone. While the mixture is still wet, additional aggregate may be broadcast into various panels. Finally, the entire surface is rolled with a weighted roller.
  • these composite surfaces are porous or semi-porous in nature. Moreover, as the composite surface dries in the case of a cementitious matrix or cures in the case of polymer-based matrix, gases are released from the matrix causing surface imperfections, pin-holes and subsurface voids in the top layer. To address this concern, the top layer is rough cut using very course to course (24-grit to 80-grit) grinding stones or diamond plates. Rough cutting the top layer evens out the surface imperfections but may leave slight depressions. Rough cutting does little to remedy the pin holes and may open up subsurface voids to the surface. If left untreated, these flaws can collect excess wax, dirt and other debris which affects the look and surface quality of the composite surface.
  • a grouting pan assembly includes a reinforcement ring.
  • a grouting pan includes a substantially planar bottom surface and a curved sidewall surrounding the bottom surface.
  • a further aspect provides a grouting pan with a curved side wall including an angled portion and a rounded edge portion formed between a bottom surface and an angled portion such that an obtuse included angle is formed therebetween.
  • a top surface of a grouting pan is configured to affix the grouting pan to a rotating head of a finishing machine.
  • a grouting pan assembly includes a grouting pan having a post or other mechanical fastener extending from a backside thereof for attachment to a reinforcing ring or layer. Methods of making and using the present grouting pan assembly with a reinforcement ring or layer are also provided.
  • the present grouting pan assembly is ideally suited for finishing a composite or other workpiece surface.
  • the present assembly may also spread mortar over a rough composite surface having surface voids to form a prepped surface.
  • An exemplary grouting pan having a curved sidewall extending from a generally flat bottom surface in contact with the prepped floor is advantageously rotated over the prepped surface.
  • the exemplary grouting pans are moved in different directions relative to the composite surface so that they are pushed across the surface imperfection composite surface. In doing so, the grouting pans force trapped air out of and mortar into of the pin holes and surface voids.
  • the sidewall pushes the mortar into the surface imperfections, while the rounded edge and the planar bottom surface compress the mortar in and force air out. This action also thoroughly mixes any filler with the mortar during grouting.
  • the cured surface is finished to form a finished surface.
  • the present grouting pan and specifically shaped reinforcement ring combination also creates aesthetically pleasing and ornamental benefits over prior designs.
  • the present assembly is advantageous over traditional devices.
  • a flexible metallic reinforcement layer or ring of the present apparatus advantageously allows greater and more even floor contact over worn areas and cracks due to pan-to-pan flexibility, which is expected to improve grout-filling performance.
  • the post extending from each pan and method of manufacturing the apparatus advantageously provide a more secure attachment of components.
  • the flexible metallic reinforcement ring in combination with metallic grouting pans, provide enhanced durability and improved heat dissipation during use.
  • the present ring enhances pad stiffness adjacent its periphery which gives more even pan-to-floor pressure. Additional advantages and features of the present invention will be readily understood from the following description, claims and appended drawings. BRIEF DESCRIPTION OF THE DRAWINGS
  • Figure 1 is a partially exploded top perspective view showing a grouting pan assembly including a powered finishing machine
  • Figure 2 is a bottom perspective view showing several of the present grouting pan assemblies affixed to a counter-rotating head of the powered finishing machine;
  • Figure 3 is a bottom perspective view showing the present grouting pan assembly
  • Figure 4 is a bottom exploded perspective view showing the present grouting pan assembly
  • Figure 5 is a bottom elevational view showing the present grouting pan assembly
  • Figure 6 is a bottom perspective view of the present grouting pan
  • Figure 7 is an exploded cross-sectional view, taken along line 8 - 8 of Figure 5, showing the present grouting pan and a reinforcement ring;
  • Figure 8 is a cross-sectional view, taken along line 8 - 8 of Figure 5, showing the present grouting pan assembly
  • Figure 9 is a bottom elevational view, showing an alternate embodiment of the present grouting pan assembly
  • Figure 10 is a bottom elevational view, showing another alternate embodiment of the present grouting pan assembly
  • Figure 1 1 is a bottom elevational view, showing yet another alternate embodiment of the present grouting pan assembly.
  • Figure 12 is a bottom elevational view, showing a further alternate embodiment of the present grouting pan assembly.
  • a grouting pan assembly 34 includes a rubber or elastomeric polymer base pad or layer 28, a reinforcement ring or layer 31 and multiple grouting pans 10 for finishing a composite floor or workpiece surface 1 1 .
  • the grouting pan 10 has a substantially planar bottom surface 12, and a curved sidewall 14 surrounding the bottom surface 12.
  • the curved sidewall 14 is defined by an angled portion 16 and a rounded edge portion 18.
  • the curved sidewall 14 may further include a vertical portion 20 extending from the angled portion 16 to a top backside surface 22.
  • the grouting pan 10 is metal and more preferably stainless steel.
  • the reinforcement ring or layer 31 is secured to a bottom face or surface 40 of base pad 28, by a contact cement type of adhesive.
  • the reinforcement ring 31 is generally annular having a central opening with an inner diameter of approximately 1 10 mm and an outer diameter of approximately 229 mm for one version of the assembly. Furthermore, the reinforcement ring 31 has a thickness greater than zero and up to 1 .0 mm, and more preferably 0.25 mm.
  • the reinforcement ring or layer 31 is metallic and more preferably a high carbon 1095, hardened and tempered spring steel material.
  • the reinforcement ring 31 reinforces and adds some radial stiffness and toughness to the outer portion of the pad 28 to resist rotational centrifugal forces when used, however, the ring advantageously allows a significant amount of torsional and longitudinal flexibility and resilience to assembly 34 so it can flex with and follow any floor imperfections thereby producing uniform pan-to-pan floor contact for grouting. This is especially beneficial when worn areas of the floor or cracks in the floor are otherwise encountered by only some pans but not others.
  • the circular internal edge 33 of the reinforcement ring 31 defines the central opening or hole which exposes a central surface of the base pad 28. This large diameter internal edge 33 allows for easier torsional flexure of the ring during use.
  • the base pad 28 and the ring 31 preferably have concentrically aligned circular peripheral surfaces 39 and 41 , respectively.
  • reinforcement rings 31 a-d may have wavy or undulating inner edges 33a-d such as that shown in Figures 9 - 12. These curved inner edges have radially extending slots 61 a-d between radially enlarged pan- mounting peaks 63a-d allowing for different flexibility characteristics of the ring. Nevertheless, these ring edge shapes also provide aesthetically pleasing ornamental designs.
  • each pan includes a generally circular body with an exemplary outer peripheral diameter of 54 mm and a total height below the reinforcement ring 31 of 8.0 mm.
  • each pan is at least twice as laterally wide W as longitudinally tall T and more preferably at least five times as wide as tall (exposed below the ring).
  • An optional and cylindrically shaped post 55 projects from a backside of each disk-like pan in a longitudinal direction substantially parallel to a rotational axis of the pad apparatus, and is integrally formed therewith as a single piece.
  • the post 55 is approximately 20 mm wide and between approximately 1 .0 mm long.
  • the post 55 projects through an aperture 57 pierced in the ring 31. Multiple of the apertures are equally spaced apart in the ring. A distal end of the post 55 is deformed and crimped to outwardly expand like a mushroom head thereby creating an enlarged head 59 (as shown in Figure 8) which is laterally larger than the aperture 57.
  • Figure 7 shows the post 55 before deformation.
  • the ring 31 is sandwiched and compressed between the head 59 and the backside of each pan 10 to mechanically attach and secure the pans 10 to the ring 31 .
  • Adhesive may additionally or instead be employed to attach and secure the pans 10 to the ring 31 with or without the posts, depending on the specific durability requirement and coarseness of the grit for grinding. While four grouting pans are preferably attached to the reinforcement ring, at least two pans (such as three, six or more) may alternately be used with each ring. Alternately, the post may be a longitudinally elongated threaded shaft of a bolt or other mechanical fastener, although some of the benefits of the preferred integral post may not be achieved.
  • multiple parallel and spaced apart posts may project from each disk-like pan for insertion onto aligned apertures of the reinforcement ring.
  • one or more posts can have a generally polygonal shape, a flat side surface or a greater width in one lateral direction than another (e.g., a rectangle or oval). These alternate post configurations deter rotation of the pans relative to the attached reinforcement ring and base pad during grouting. In the example shown, four such pans 10 are secured about the circumference of the reinforcement ring 31 in an equally spaced apart manner.
  • the posts may be solid or at least partially hollow. Different sizes and/or a different quantity of the pans may alternately be used.
  • the ring apertures 57 are preferably circular but may alternately have one or more flat edges, or even be elongated slots in the inner or outer edges 33 and 41 , respectively, of the ring 31 .
  • Figures 1 and 2 show one of multiple pan assemblies 34 secured to a rotatable flanged hub 71 of a larger counter-rotating rotor 73 of an electric motor- powered floor grinding machine 75.
  • a hard rubber or elastomeric polymer disk 77 includes a plurality of clips or bolt-receiving holes for releasably securing the disk 77 to the hub 71 .
  • a layer of hook-and-loop fasteners 103 e.g. Velcro®
  • the pad 28 may be directly attached to the hub 71 in some constructions.
  • a plurality of the grouting pan assemblies 34 are secured for rotation about a central axis of the rotor 73. Alternate powered machines and pad attachments may be used. Also, the present pad assembly may be attached to a walk-behind or riding power-trowel machine which may be propane fuel powered.
  • the grouting pan assembly 34 shown in Figure 5 is well suited for use on the finishing or grinding machine having the rotary head 73 supporting the set of counter-rotating planets or hubs 71.
  • a grouting pan assembly 34 (three being shown) is affixed to an associated counter-rotating planet 71 which rotates in a direction opposite the rotary head 73.
  • Additional grouting pan assemblies 34 may be affixed to counter-rotating planets 71 as needed for a particular application.
  • the head 73 rotates the grouting pan assemblies 10 in a clockwise direction as the planets 71 rotate each assembly 10 in a counterclockwise direction relative to the head 73 over the prepped surface for troweling the mortar onto the rough composite surface and forcing the mortar into the surface voids to form a grouted surface.
  • the geometry of the grouting pan 10 is configured to efficiently spread mortar over the rough cut layer.
  • the heads rotate the grouting pans 10 over the prepped surface for troweling the mortar onto the rough composite surface with the sidewalls 14 and forcing the mortar into the surface voids with the bottom surface 12 to form a grouted surface.
  • a method for finishing a composite floor surface will now be described. While the method described herein has a specific application for grouting a terrazzo floor, the process has broader utility for finishing or re-finishing any composite surface including but not limited to epoxy, terrazzo, or cementitious surface with or without decorative aggregates.
  • a rough composite surface has been prepared in accordance the conventional method described in the background above with the following exception.
  • the method described hereafter, and in particular the method for grouting the rough composite surface enables the use of a finer grit during the rough cut process than the very course or course grit used in conventional finishing.
  • the rough composite surface may be finished to a 150-grit or 200-grit surface prior to grouting.
  • the method for finishing a composite surface includes spreading a mortar over the rough composite surface having surface voids to form a prepped surface.
  • a filler may be broadcast on top of the mortar when forming the prepped surface.
  • the filler may be a very fine powder of pulverized stone (e.g., marble, lime stone, granite and/or quartz), calcium carbonate or cement.
  • the grouting pans are rotated over the prepped surface such that the curved sidewalls trowel the mortar onto the rough composite surface and the bottom surface 12 which is in contact with the prepped floor forces the mortar into the surface voids such that a grouted surface is formed.
  • the mortar on the grouted surface is allowed to cure such that a cured surface is formed.
  • the grouting pans 10 described herein are particularly well suited for use on a rotating head of a finishing machine when practicing the method described above.
  • the reinforcement ring may be made from a polymeric material although the heat sink benefits of the preferred metallic ring may not be obtained.
  • circular peripheral shapes for the pad, reinforcement ring and pans are preferred; however, other arcuate or even generally polygonal peripheral shapes may be used although certain of the present advantages may not be fully realized.
  • Alternate base pads 25 may be used, such as fiber, foam, felt or other such flexible materials.
  • any of the preceding features may be interchanged and intermixed with any of the others.
  • any and/or all of the dependent claims may depend from all of their preceding claims and may be combined together in any combination. Variations are not to be regarded as a departure from the present disclosure, and all such modifications are entitled to be included within the scope and sprit of the present invention.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Floor Finish (AREA)

Abstract

Un ensemble bac d'injection de coulis selon l'invention comprend un anneau de renfort. Selon un autre aspect, un bac d'injection de coulis comprend une surface inférieure sensiblement plane et une paroi latérale incurvée entourant la surface inférieure. Dans un autre mode de réalisation, un ensemble bac d'injection de coulis comprend un bac d'injection de coulis comportant un montant ou un élément de fixation mécanique s'étendant à partir d'un côté arrière de celui-ci pour une fixation à un anneau ou à une couche de renfort.
PCT/US2018/048845 2017-08-30 2018-08-30 Ensemble bac d'injection de coulis doté d'une bague de renfort WO2019046576A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880056641.5A CN111051628A (zh) 2017-08-30 2018-08-30 具有加强环的灌浆盘组件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/690,360 US10246885B2 (en) 2014-09-18 2017-08-30 Grouting pan assembly with reinforcement ring
US15/690,360 2017-08-30

Publications (1)

Publication Number Publication Date
WO2019046576A1 true WO2019046576A1 (fr) 2019-03-07

Family

ID=63638385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/048845 WO2019046576A1 (fr) 2017-08-30 2018-08-30 Ensemble bac d'injection de coulis doté d'une bague de renfort

Country Status (2)

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CN (1) CN111051628A (fr)
WO (1) WO2019046576A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116876763A (zh) * 2023-09-05 2023-10-13 湖南省第三工程有限公司 一种女儿墙圆弧泛水模上口的灌砼装置及其灌砼方法
SE2250660A1 (en) * 2022-06-02 2023-12-03 Arilds Betongslipning Ab A scraping disc arrangement

Citations (2)

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WO2017053737A1 (fr) * 2015-09-24 2017-03-30 Diamond Tool Supply, Inc. Ensemble de tampon de polissage ou de meulage
EP3348352A1 (fr) * 2014-09-18 2018-07-18 Diamond Tool Supply, Inc. Appareil de tampon de polissage

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US7731573B2 (en) * 2008-01-30 2010-06-08 3M Innovative Properties Company Method, system, and apparatus for modifying surfaces
US20110300784A1 (en) * 2010-06-04 2011-12-08 Tchakarov Tchavdar V Flexible and interchangeable multi-head floor polishing disk assembly
CN102794718B (zh) * 2012-07-30 2014-12-17 中国人民解放军国防科学技术大学 柔性被动适应型光顺盘及其柔性夹层和柔性被动适应型光顺盘的操作方法
CN204135910U (zh) * 2014-11-13 2015-02-04 无锡市福吉电子科技有限公司 一种抛光盘装置
CN205438263U (zh) * 2015-12-31 2016-08-10 湖北优尼科光电技术股份有限公司 一种提升tft-lcd玻璃抛光效率的刷子
CN106808380B (zh) * 2017-03-29 2023-07-28 中国工程物理研究院激光聚变研究中心 数控抛光盘及抛光工艺

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3348352A1 (fr) * 2014-09-18 2018-07-18 Diamond Tool Supply, Inc. Appareil de tampon de polissage
WO2017053737A1 (fr) * 2015-09-24 2017-03-30 Diamond Tool Supply, Inc. Ensemble de tampon de polissage ou de meulage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE2250660A1 (en) * 2022-06-02 2023-12-03 Arilds Betongslipning Ab A scraping disc arrangement
WO2023234839A1 (fr) * 2022-06-02 2023-12-07 Arilds Betongslipning Ab Agencement de disque de raclage, appareil et disque de raclage pour racler en pâte à reboucher l'espace d'un plancher en matériau composite
CN116876763A (zh) * 2023-09-05 2023-10-13 湖南省第三工程有限公司 一种女儿墙圆弧泛水模上口的灌砼装置及其灌砼方法
CN116876763B (zh) * 2023-09-05 2023-11-24 湖南省第三工程有限公司 一种女儿墙圆弧泛水模上口的灌砼装置及其灌砼方法

Also Published As

Publication number Publication date
CN111051628A (zh) 2020-04-21

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