EP0841444A2 - Methoden und Geräte zum Einführen von durch Luft angetriebenem Material in einem Kanal oder einer Aussparung - Google Patents

Methoden und Geräte zum Einführen von durch Luft angetriebenem Material in einem Kanal oder einer Aussparung Download PDF

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Publication number
EP0841444A2
EP0841444A2 EP97308886A EP97308886A EP0841444A2 EP 0841444 A2 EP0841444 A2 EP 0841444A2 EP 97308886 A EP97308886 A EP 97308886A EP 97308886 A EP97308886 A EP 97308886A EP 0841444 A2 EP0841444 A2 EP 0841444A2
Authority
EP
European Patent Office
Prior art keywords
recess
filling head
channel
filling
panel
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.)
Granted
Application number
EP97308886A
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English (en)
French (fr)
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EP0841444B1 (de
EP0841444A3 (de
Inventor
Roger John Leaver
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.)
EXCEL INDUSTRIES Ltd
Excel Industries Ltd
Original Assignee
EXCEL INDUSTRIES Ltd
Excel Industries Ltd
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 GBGB9623201.2A external-priority patent/GB9623201D0/en
Application filed by EXCEL INDUSTRIES Ltd, Excel Industries Ltd filed Critical EXCEL INDUSTRIES Ltd
Publication of EP0841444A2 publication Critical patent/EP0841444A2/de
Publication of EP0841444A3 publication Critical patent/EP0841444A3/de
Application granted granted Critical
Publication of EP0841444B1 publication Critical patent/EP0841444B1/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
    • E04F21/08—Mechanical implements
    • E04F21/085—Mechanical implements for filling building cavity walls with insulating materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7604—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only fillings for cavity walls

Definitions

  • This invention relates to methods and apparatus for introducing air-entrainable material such as, for example, insulating material, into an open recess or channel and to products so formed.
  • air-entrainable material such as, for example, insulating material
  • the invention relates to methods and apparatus for introducing insulating fibre material such as fibrous or foam material into an open frame element such as a timber frame.
  • Houses may be built using a timber frame construction method in which timber-framed panels are manufactured in a factory and then erected on site.
  • a typical panel comprises a timber "studding" framework of elements typically 90 mm x 40 mm with a plywood sheathing board forming the external skin and plasterboard the internal skin.
  • Alternative materials may sometimes be used, and a polythene vapour control layer may be included under the plasterboard.
  • the vertical studding is normally placed at fixed modular distances, for example 600 mm, but as seen in Figure 1, design considerations often result in complex arrangements of the studs, e.g. where a door or window is included.
  • the panels are normally insulated by pressing mineral fibre "quilt” or “batts” between the studding, prior to fixing the plasterboard.
  • fibres such as mineral fibre or, preferably, cellulose fibre.
  • the fibres are compressed into the space so as to give a stable fill which will resist settlement over time.
  • Previous methods of insulating panels in this way have included drilling holes in the top or bottom stud of the panel, between each pair of vertical studs, and inserting a lance through the hole through which fibre is blown. The lance is fully inserted and then gradually withdrawn as filling proceeds.
  • holes may be drilled in either the plywood or plasterboard skins and then a nozzle can be inserted through the hole through which the fibre is blown.
  • a method of introducing insulating material or other air-entrainable material into an open recess or channel including applying to said recess or channel a filling head means having a cover plate means associated therewith, thereby temporarily to cover said recess to define a local cavity, delivering into said cavity a blown mixture of air and insulating material or other air-entrainable material whilst substantially preventing or reducing leakage of the insulating material or other air-entrainable material, and moving said recess or channel relative to said filling head means, progressively to fill said recess or channel.
  • said method may include effecting relative movement of said filling head means longitudinally along said recess or channel to fill said channel or recess, or a plurality thereof.
  • the cover plate means and said point of delivery may be moved along each said recess or channel to fill one channel or recess at a time, with the width of the cover plate means being sufficient to extend between opposite sides of said recess or channel.
  • a much larger cover plate may be used, long enough to extend between opposite ends of the channels or recesses.
  • the cover plate means and the point of delivery may be held stationary whilst the panel is moved beneath them in a single pass so that the channels move transversely in succession under the cover plate.
  • the step of substantially preventing or reducing leakage of insulating or other air-entrainable material from said recess or channel may be achieved in a variety of ways.
  • the cover plate means moves in a given direction relative to a recess or channel, the insulating or other air-entrainable material at the trailing edge of the cover plate (in the sense of said movement direction) will already have been compressed by the delivery of material and this will prevent or reduce leakage from the trailing edge.
  • the leading edge of the cover plate means where the bulk of the filling has yet to form, it is also necessary to prevent or reduce leakage.
  • the leakage prevention means comprises an extended leading edge for the cover plate means which is selected with regard to the other operating parameters such as the air velocity, fibre size, filling depth, size and effective friction coefficient of the cover plate means etc, so that the accumulated friction applied both by the leading edge portion of the cover plate means and the opposing base and sides of the recess or channel is sufficient substantially to prevent or reduce leakage of material.
  • the length of the leading edge portion of the plate required for any particular application may easily be determined by one skilled in the art using routine experimentation.
  • the cover plate means may be provided with a downwardly projecting wall for retaining insulating material within said recess or channel.
  • said cover plate means and said point of delivery are incorporated in an applicator head means, which provides a filling chamber, for example of generally conical or trihedral shape which allows the insulating or other air-entrainable material to flow across the whole width of the channel or recess.
  • the insulating or other air-entrainable material is agitated prior to or adjacent said delivery point.
  • a method of introducing insulating or other air-entrainable material into an open recess or channel which includes margin or wall means including applying across said recess or channel an applicator head means comprising a cover plate means which in use cooperates with said margin or wall means temporarily to enclose said recess channel and, associated with said cover plate means, a downwardly open filling chamber for receiving a blown mixture of air and insulating or other air-entrainable material, said filling chamber extending across a major portion of said cover plate means, to allow said blown mixture to flow across said channel or recess.
  • a method of producing an insulated panel which comprises providing a framework, closing one side of the frame with one or more skin means, thereby to define a generally horizontal array of open recesses separated by respective frame members, using a method as defined above to introduce insulating material into one or more of said recesses, and then securing one or more skin means to the other side of said framework to close said recesses and produce an insulated panel.
  • the invention also extends to a panel or other structural element formed in accordance with a method of this invention.
  • apparatus for introducing air-entrainable material into an open recess or channel, said apparatus including a cover plate means for being placed over said recess or channel, a discharge means for discharging a mixture of air and air-entrainable material to one side of said cover plate means, and means for preventing or reducing leakage of said air-entrainable material from said recess or channel in use.
  • said means for preventing or reducing comprises an extended portion of said cover plate means of length such that the friction accumulated between said extended portion and said material in use is sufficient to prevent or reduce leakage.
  • said means for preventing or reducing leakage may comprise a weir or blocking plate means projecting from said one surface of said cover plate means into said recess or channel in use.
  • Said discharge means preferably comprises a filling chamber, typically of conical or trihedral form open to said one side of said cover plate means for receiving said mixture and discharging it across at least a substantial portion of the width of the recess or channel.
  • a typical conventional timber frame panel 10 is made up of vertical studding 12 connected at the lower end to a sole plate 14 and at the upper end to a top plate 16. Generally, the spacing between the vertical studding 12 is uniform except where there is an aperture 17 for a door or window. In addition, adjacent vertical studs 12 may be interconnected by a noggin 18. This timber studding framework is sandwiched between an outer plywood sheathing 20 and an inner plasterboard skin 22 to provide a timber frame panel. During production, the internal cavities of the timber frame panel are filled with insulating material either in the form of quilts or batts, or by blowing fibres.
  • a travelling applicator head of special design traverses the surface of the panel to blow fibre continuously into a running chamber as the applicator head moves smoothly over the surface.
  • the applicator head 24 comprises a generally flat cover plate 26 which is wide enough to fill one channel between two timber studs (typically spaced at 600 mm).
  • the filling head is advanced in the direction of the arrow A whilst a mixture of air and fibre is blown through the filling chamber 28.
  • the cover plate has an extended leading edge 30 which effectively closes the leading edge of the cavity into which the fibre is blown under pressure. Because of the direction of movement, the fibre at the trailing edge is already packed to a stable state and therefore the trailing edge can be much shorter.
  • the length of the leading edge is such that there is sufficient friction provided between the surfaces of the underlying sheathing panel 20 and the underside of the leading edge 30 to resist the blowing pressure which might otherwise force fibre out from below the plate 26, thus preventing a complete and well-compressed fill.
  • this dimension is typically about 5-10 times the depth to be filled.
  • the filling chamber 28 may take many forms but in this example takes a hollow conical shape, as seen in figures 4 and 6. This shape effectively spreads the pressure evenly across the width of the channel to be filled, giving a correspondingly even density which cannot be obtained with the earlier drill and fill processes. Additionally, the chamber has the great advantage of allowing complex sections to be filled, where for example intermediate studs 121 are encountered as in the channel or recess identified at 32 on Figure 1. As seen in Figure 6, it can be seen that the chamber allows fibre to flow to each side of the intermediate stud 12 1 whereas, if there were no filling chamber and a simple access hole, the channel to one side of the intermediate stud would not be filled.
  • the filling head is traversed in serpentine fashion along adjacent recesses or channels and filling proceeds over the entire panel, irrespective of the position of additional timbers, whether they be at right angles or parallel to the direction of travel.
  • Any areas designated as windows 17 or doors i.e. sections not to be filled with insulation) can be fitted with temporary blanking plates over which the filling head 28 may traverse without obstruction, but without the ingress of fibre which continues to be held under pressure within the filling chamber 28.
  • the fibre fill may be visually inspected for completeness of fill, density etc before the inner plasterboard skin 22 is applied to complete the panel.
  • the panel is initially part-formed with the outer skin and the skeletal framework, it could of course be partly formed with the inner skin and the skeletal framework. It is of course preferred to keep the panel horizontal during the filling process although we do not exclude the possibility of the panel being oriented differently.
  • the head has a width slightly larger than the typical horizontal spacing of the timber studs 12, and traverses the recesses one by one moving generally longitudinally with respect to each recess.
  • FIG. 7 a second embodiment of filling head 24 is illustrated in which the leading edge of the cover plate is foreshortened and a cavity closing piece or weir 34 projects downwardly from the underside of the cover plate to retain fibre within the channel.
  • This design is intended for the special case where it is known that channels will always be of similar width with no obstructions or intermediate timbers.
  • FIG. 8 there is shown an alternative fixed filling head 44 which spans the whole side of the timber frame panel and under which a panel sweeps in a single direction relative as shown by the arrow B, to enable the whole panel to be passed at a controlled speed under the head.
  • This arrangement is particularly preferred for semi-automated production of timber frame panels because movement in a single direction only is required, and a wide variety of different designs of the panel can be filled.
  • the head 44 includes a cover plate 26, and an elongate filling chamber 48 of generally trihedral cross section as seen more clearly in Figure 9.
  • the filling chamber 48 is supplied with a mixture of air and fibres through the hoses 46.
  • the head 44 fills the panel one channel at a time but it fills across the channel rather than along its length.
  • the chamber 48 can be of various designs but a trihedron as shown has been found to be effective in providing a good flow and even dispersion without resulting in blockages within the chamber.
  • Figures 10 and 11 it is found that the above arrangements may be enhanced by using methods which help to "fluidise" the fibre within the filling chamber 28, thus improving the ability of the fibre to flow willingly and easily even into very small cavities.
  • two methods which may be used either separately or in combination namely mechanical agitation and air pulsing.
  • a mechanical agitator is disposed within the filling chamber 28 or 48 and comprises a blade 50 mounted on a vertical shaft which is rotated within the chamber further to disperse and fluidise the fibres in the airflow.
  • a series of these devices could be used in the embodiment of Figures 8 and 9.
  • the arrangement of Figures 8 and 9 may incorporate a mechanical agitator as shown in Figure 12.
  • a horizontal elongate rod 52 is rotatably and axially moveable within the filling chamber 48.
  • the agitator includes a series of paddles 54 at spaced intervals. In use the rod 52 is rotated and reciprocated back and forth to agitate fibre in the chamber.
  • the air pulsing may be achieved by suddenly and periodically cutting off the pressure exerted by the blowing machine on the chamber, or by applying a pulse of compressed air to the chamber to make use of the "reverse jet" principle.
  • each filling point may be pulsed in turn in order to encourage the fibre to flow back and forth along the length of the chamber.
  • the filling head 54 is similar to that shown in Figures 8 and 9 and is mounted above a workpiece table 56 having a drive roller 58 for driving an open-topped timber frame panel 59 to be filled.
  • the filling head 54 has a vertical trailing wall 60, a leading wall 62 inclined in this example at about 60° to the trailing wall 60 and a number of fibre feed inlets 64 in the roof 66. It is emphasised that the angles given here are by way of example, relating to one particular implementation, and that different angles may be used.
  • the overall requirement is that the walls should be sufficiently divergent so that the compressed fibre in the filing head does not block and remains free to flow into the panel at all times when the space below is not yet fully filled. In the particular example of Figure 13, it has been much found that angles in excess of 62° may make the head too divergent and adversely alter fibre distribution, and that angles much below about 45° may increase the risk of the head becoming blocked with fibres.
  • a screeding plate 68 Adjacent the lower edge of the trailing wall 60 is a screeding plate 68 which is moveably mounted by a cam arrangement 70 which is driven to oscillate the screeding plate 68 in the horizontal plane with the leading edge protruding into the filling head 54.
  • This provides a number of important advantages. It serves to distribute and agitate the air/fibre mix within the filling chamber 54.
  • the plate 68 has a serrated leading edge 72 which serves to cut through the mass of fibres with a bread knife effect.
  • the lower surface of the screeding plate 68 applies a smoothing effect to the fibrous insulating material once it has been delivered into the panel 59.
  • the screeding plate 68 also provides a sealing effect.
  • cover plate 74 which, in conjunction with the fibrous material and the panel framework, retains fibre in the panel and provides a sealing action.
  • a scrub roller 76 is driven contrary to the direction of movement of the panel as it is advanced under the filling head 54 to scrub the surface of the insulating material to level it, with suitable vacuum means (not shown) to remove surplus material.
  • the roller may be driven in the same sense as the panel to roll the surface.
  • a moving conveyer belt arrangement 78 moves at the same speed as the panel to retain and smooth the surface of the insulating material.
  • FIGs 18 and 19 it is common to encounter wall panels in which the sides are not parallel, for example gable wall sections.
  • the movable plate 80 is kept in contact with the non-parallel edge by either springs 82 or pneumatic pressure or other means.
  • the wheels 76 mounted to the plate follow the movement of the non-parallel edge exactly to ensure that the blanking plate is at all times correctly positioned.
  • Figures 19 (a) to (d) show how the position of the plate 74 changes with different shapes of panel to allow all types to be passed under the filling head without loss of insulation.
  • the pressure in the feed inlets 62 may be monitored for process control. For example, at commencement of filling of each empty panel section, the pressure drops and the traverse of the panel can be slowed or stopped until pressure increases, indicating that that section is full. Additionally or alternatively, when pressure reaches a pre-set level in any single hose, the air intake to that hose can be partially or wholly shut off in order to prevent excessive pressure in one area, or the pressure across all the filling points in the panel can be balanced continuously to provide a consistent fill.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Building Environments (AREA)
  • Manipulator (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Telephone Function (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Stringed Musical Instruments (AREA)
EP97308886A 1996-11-07 1997-11-05 Methoden und Geräte zum Einführen von durch Luft angetriebenem Material in einem Kanal oder einer Aussparung Expired - Lifetime EP0841444B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9623201 1996-11-07
GBGB9623201.2A GB9623201D0 (en) 1996-11-07 1996-11-07 Methods and apparatus for introducing air-entrainable material into a channel or recess
GBGB9708117.8A GB9708117D0 (en) 1996-11-07 1997-04-22 Methods and apparatus for introducing air-entrainable material into a chanel or recess
GB9708117 1997-04-22

Publications (3)

Publication Number Publication Date
EP0841444A2 true EP0841444A2 (de) 1998-05-13
EP0841444A3 EP0841444A3 (de) 1998-11-18
EP0841444B1 EP0841444B1 (de) 2005-09-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97308886A Expired - Lifetime EP0841444B1 (de) 1996-11-07 1997-11-05 Methoden und Geräte zum Einführen von durch Luft angetriebenem Material in einem Kanal oder einer Aussparung

Country Status (4)

Country Link
EP (1) EP0841444B1 (de)
AT (1) ATE304099T1 (de)
DE (1) DE69734137T2 (de)
GB (1) GB9708117D0 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1255001A2 (de) * 2001-04-14 2002-11-06 Markus Gleixner Vorrichtung zum Einblasen von Einblasdämmstoff in Dämmstoffkammern von Wand-, Decken- oder Dachelementen
EP2333198A1 (de) * 2009-12-03 2011-06-15 isofloc AG Vorrichtung und Verfahren zum Einblasen von Einblasdämmstoff in Dämmstoffkammern
EP3246490A1 (de) * 2016-05-20 2017-11-22 isofloc AG Verfahren und vorrichtung zum einblasen von einblasdämmstoff in dämmstoffkammern von bauelementen

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021131257B4 (de) 2021-11-29 2024-01-25 GEKO Maschinenbau GmbH Vorrichtung zum Einbringen von Dämmstoff in eine Dämmstoffkammer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989790A (en) * 1957-06-10 1961-06-27 Judd A Brown Apparatus and method for applying and packing fibrous material
US4330921A (en) * 1978-09-21 1982-05-25 White Jr Olin N Insulated wall sections and methods of and apparatus for prefabricating the same
US4829738A (en) * 1987-04-02 1989-05-16 Certainteed Corporation Loose-fill cavity insulation by pneumatic injection

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989790A (en) * 1957-06-10 1961-06-27 Judd A Brown Apparatus and method for applying and packing fibrous material
US4330921A (en) * 1978-09-21 1982-05-25 White Jr Olin N Insulated wall sections and methods of and apparatus for prefabricating the same
US4829738A (en) * 1987-04-02 1989-05-16 Certainteed Corporation Loose-fill cavity insulation by pneumatic injection

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1255001A2 (de) * 2001-04-14 2002-11-06 Markus Gleixner Vorrichtung zum Einblasen von Einblasdämmstoff in Dämmstoffkammern von Wand-, Decken- oder Dachelementen
EP1255001A3 (de) * 2001-04-14 2003-03-26 Markus Gleixner Vorrichtung zum Einblasen von Einblasdämmstoff in Dämmstoffkammern von Wand-, Decken- oder Dachelementen
EP2333198A1 (de) * 2009-12-03 2011-06-15 isofloc AG Vorrichtung und Verfahren zum Einblasen von Einblasdämmstoff in Dämmstoffkammern
EP2333199A1 (de) * 2009-12-03 2011-06-15 isofloc AG Vorrichtung und Verfahren zum Einblasen von Einblasdämmstoff in Dämmstoffkammern
EP3246490A1 (de) * 2016-05-20 2017-11-22 isofloc AG Verfahren und vorrichtung zum einblasen von einblasdämmstoff in dämmstoffkammern von bauelementen

Also Published As

Publication number Publication date
DE69734137T2 (de) 2006-06-22
EP0841444B1 (de) 2005-09-07
GB9708117D0 (en) 1997-06-11
ATE304099T1 (de) 2005-09-15
EP0841444A3 (de) 1998-11-18
DE69734137D1 (de) 2005-10-13

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