EP1992763A2 - Supports d'alignement de baguettes - Google Patents

Supports d'alignement de baguettes Download PDF

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Publication number
EP1992763A2
EP1992763A2 EP08156202A EP08156202A EP1992763A2 EP 1992763 A2 EP1992763 A2 EP 1992763A2 EP 08156202 A EP08156202 A EP 08156202A EP 08156202 A EP08156202 A EP 08156202A EP 1992763 A2 EP1992763 A2 EP 1992763A2
Authority
EP
European Patent Office
Prior art keywords
bead
bead alignment
alignment
alignment means
alignment portion
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.)
Withdrawn
Application number
EP08156202A
Other languages
German (de)
English (en)
Other versions
EP1992763A3 (fr
Inventor
Gregory Clark
Murray Swinfield
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.)
Homelux Nenplas Ltd
Original Assignee
Homelux Nenplas 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
Application filed by Homelux Nenplas Ltd filed Critical Homelux Nenplas Ltd
Publication of EP1992763A2 publication Critical patent/EP1992763A2/fr
Publication of EP1992763A3 publication Critical patent/EP1992763A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E04F13/06—Edge-protecting borders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/02—Borders; Finishing strips, e.g. beadings; Light coves
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E04F13/06—Edge-protecting borders
    • E04F2013/063—Edge-protecting borders for corners

Definitions

  • the present invention relates to bead alignment means, particularly, but not exclusively, for use with rendering beads.
  • bead is usually an elongate, preformed metal or plastic reinforcement. It is not essential that it is elongate or preformed and may be made of other materials.
  • rendering applications it is attached to an outside surface, such as an exterior wall, in order to provide a guide for render material being applied to the surface.
  • bead can provide protection for the surface to which it is applied. The bead helps to provide a consistent rendering finish.
  • the bead is also usually formed of a waterproof material and can act as a guide for excess water to run down to a desired location (e.g. to the ground).
  • Render material such as plaster or cement or any other known render composition
  • One particular application where rendering beads are used is the rendering of exterior building surfaces, e.g. for weatherproofing.
  • Figure 1 is a cross sectional view through a known corner bead 10.
  • the corner bead 10 is elongate and has a generally uniform cross-section (as shown) across its length. It 10 is used at an outwardly pointing corner of a wall.
  • the corner bead 10 has a first surface 12 and second surface 14, which join at a corner 16 at an angle of about 90°. Corner beads having different joint angles are provided as required for walls having outwardly pointing corners, which are not 90° corners. For example, in some situations a 120° corner bead may be provided for a 120° corner wall. Similarly other angles will be apparent to the skilled person - the present invention can easily be adapted to suit such situations and protection is sought in respect of these non-90° corners.
  • a render guide 18 Extending outwardly from the corner 16 of the corner bead 10 is a render guide 18 in the form a regular rectangular surface 20 having a rounded end 22.
  • the rounded end 22 provides a smooth exterior exposed surface. Smooth exposed surfaces are more desirable than angled exterior surfaces due to the higher risk of damage to an exterior angled surface.
  • the purpose of the render guide 18 is primarily to provide a guide to the depth of render material which should be applied by a person rendering a wall. For example if render material is being applied by use of tool such as a trowel, then the trowel is placed along the guide end 22 and run down the elongate guide end 22 to provide a consistent depth for the render material from the wall.
  • the projections 24, 26 provide, amongst other things, structural stability to the render guide 18. They 24, 26 prevent excessive undesired bending of the guide surface 20.
  • the projections 24, 26 can also be used as aids in the rendering process. Often a person applying render material to a wall will apply a first layer of render up to the level of the projections 24, 26 before applying a further layer up to the level of the guide end 22.
  • the corner bead 10 (and beads in general) are preformed such that their shape can be altered slightly upon installation if required.
  • the corner bead 10 of figure 1 is used when rendering an outwardly pointing corner having an angle of 90° or about 90° since the angle between its first surface 12 and its second surface 14 can be altered slightly by applying a force and bending it.
  • FIG. 2 shows a cross sectional view through a known drip bead 30.
  • the drip bead 30 is elongate and has a generally uniform cross section across its length.
  • the profile of the drip bead 30 (as seen in figure 2 ) comprises a generally planar first surface 32.
  • the planar surface 32 has a lower end 34 towards which a hump 36 is formed extending generally outwardly relative to a wall against which the drip bead 30 would be placed in use.
  • the hump 36 is provided in order to strengthen the surface 32 structurally.
  • the hump 36 provides a gap in which render material can be located between the drip bead and wall which is being rendered in order to increase adhesion of the drip bead 30 in its location relative to the wall.
  • the hump 36 includes render holes (described in more detail below) through which the render material is able to pass.
  • the render guide 38 comprises a generally rectangular portion 40 which is sloped to extend downwardly from the lower end 34 of the drip bead 30. From an outer end of this downwardly sloped portion 40, there is an upwardly extending wall 42, which is substantially parallel to the surface 32 of the drip bead 30.
  • This wall 42 provides a depth guide for a person applying render to the wall. A tool such as a trowel can be run along this wall 42 in order to provide a consistent depth of render material against the wall.
  • a projection 44 is provided extending generally parallel to the surface 40 from the uppermost point of the wall 42 and a projection 46 is provided extending outwardly 32 in a direction substantially parallel to the surface 40 at a similar distance from the surface 40.
  • These projections 44, 46 provide strength to the drip bead 30 at its lower end - in particular to support the wall 42 and prevent undesirable deformation of the drip bead 30.
  • the projections 44, 46 can also provide surfaces for render to move into and, as it dries, provide enhanced gripping of the bead by the render in use.
  • the surface 40 is downwardly sloped in order to allow moisture (e.g. rainwater), which runs down the rendered surface to be directed onto the wall 42 and then towards the ground.
  • moisture e.g. rainwater
  • the downward slope ensures that the moisture drips to the ground and does not travel back (against the effect of gravity) towards the surface, which has been rendered upon.
  • bead is fixed to a wall upon which a render material is to be applied by nailing the bead to the wall or by a process called dobbing on.
  • Dobbing on involves applying a small amount of render to the wall before pushing the bead into the render to hold the bead against the wall in a desired location before applying further render or aligning other bead relative to the first bead and applying further render.
  • FIG 3 schematically shows a plan view of the profile of the drip beads near to the corner.
  • the drip beads have downwardly sloping surfaces 40' and 40" (corresponding to the downwardly sloping surface 40 of the drip bead shown in figure 2 ) which need to be mitred by cutting in order to provide a suitable join between them.
  • this mitring is carried out by a renderer manually and there is inevitably a gap G1 which is left due to imprecise mitring caused by natural human error.
  • the render material is liable to crumble and come apart. Moisture is liable to encroach in gaps where it should not, since there should not be gaps. As a result, degradation of the render can occur and may in some instances result in an open pathway between the wall and the outside atmosphere, which the render material was intended to cover. This problem can be amplified at outwardly pointing corners such as shown with respect to the wall 50 as these are liable to come into contact with objects, more frequently than other surfaces or corners, and have undesirable forces imparted upon them as a result.
  • the beads 10, 30, 10', 30', 30" include render holes 54 through which render material is able to pass as it is being applied to promote adhesion of the render and the drip bead to the surface being rendered.
  • the beads also include fixing holes 56. These are sized such that they can receive the shaft of a nail or a screw (but not the head of the nail or the screw).
  • the fixing holes 56 can be used (optionally) to fix a bead to the surface being rendered by nailing or screwing.
  • a bead alignment means 70 according to an embodiment of this invention is shown.
  • the bead alignment means 70 is used to help align the corner bead 10 and two identical drip beads 30 at the outwardly pointing 90° corner wall 50.
  • the bead alignment means 70 comprises a first generally planar rectangular surface 72 and a second generally planar rectangular surface 74. Fixing holes and render holes are formed on these surfaces 72, 74 in a similar manner to those formed on the bead as mentioned above.
  • the angle of the slope 76, 78 matches the angle of the slope 40 on each drip bead 30.
  • Upwardly extending walls 80, 82 are provided extending from the slopes 76, 78 respectively and these walls 80, 82 correspond in shape, size and location to the upwardly extending walls 42 of the drip beads 30.
  • a render guide 84 which includes a generally rectangular surface 86 and a rounded bead end 88 which corresponds to the surface 20 and end 22 of the corner bead 10 respectively.
  • the exposed bead ends 88, 22 are flush with each other and form a continuous surface.
  • the walls 80, 82 form continuous exposed surfaces with the walls 42 of their attached drip beads 30.
  • the elongate bead end 88 is located (see Figures 7 and 8 ).
  • the bead end 88 At the lower end of the bead end 88, there is provided an additional outwardly curved, smooth base corner piece 90.
  • the corner piece 90 provides a smooth join between the upstanding walls 80 and 82 and also the vertically extending curved end 88. Therefore there is no gap or discontinuity at this potentially weak point. As previously discussed, this can be a particular problem with existing bead alignment techniques (i.e. manual techniques) and the bead alignment means 70 of this invention therefore provides a significant advantage in this respect.
  • the bead alignment means 70 comprises a first bead alignment portion 92 at which the bead alignment means 70 is aligned with the first drip bead 30.
  • the bead alignment means 70 further comprises a second bead alignment portion 94 at which the bead alignment means is aligned with the second drip bead 30.
  • the bead alignment means 70 further comprises a third bead alignment means 96 at which it is aligned with the corner bead 10.
  • Each bead alignment portion 92, 94, 96 is arranged to cooperate with its respective bead in order to maintain the respective bead in a desired position relative to the bead alignment means 70.
  • the first bead alignment portion 92 comprises a straight surface 98.
  • the first drip bead 30 comprises a straight surface 100.
  • the second bead alignment portion 94 comprises a straight surface 102 and the second drip bead 30 comprises a straight surface 104. Therefore the first alignment mechanism which the bead alignment means 70 of this invention offers is that its straight surfaces 98, 102 abut closely and tightly against the straight surfaces 100, 104 respectively of the drip beads 30. The need for mitring is eliminated and a close connection with substantially no gaps between the bead alignment means and the relevant beads is obtained. The absence of such gaps means that there are no discontinuous joints which, as previously discussed, can be problematic.
  • the alignment mechanism may be substantially similar but the surfaces of the bead alignment means may be different shapes (e.g. not straight or straight and angled) in order to closely match the profile of a bead which is required to be aligned with it.
  • the third bead alignment portion 96 comprises straight surfaces 106, 108 on upper edges of the first rectangular surface 72 and the second rectangular surface 74 respectively near its corner and these correspond to straight bottom edges 110, 112 of the corner bead 10.
  • the bead alignment means 70 also includes a first projection 111 extending outwardly from the first sloped surface 76.
  • This first projection 111 is shaped and profiled to be receivable within the recess formed in the first drip bead 30, the recess being defined by the downwardly extending slope 40 and the inwardly extending projections 44 and 46.
  • a substantially identical second projection 113 extends from the downwardly extending slope 78 on the second rectangular surface 74 in order to be receivable within the similar recess on the second bead 30.
  • the projections 111, 113 are fairly loosely receivable within their respective recesses on the beads 30.
  • the projections may be of a different form (in shape or size as will be apparent to the skilled person) such that a tight friction fit is formed between the projections and the recesses and thus between the bead alignment means 70 and the beads 30.
  • the alignment mechanism may include a clip fit arrangement between the bead alignment means and the beads such that a snap fit is provided between them - this would provide yet further stability as the bead alignment means is being aligned with the respective beads.
  • the bead alignment means 70 of this embodiment at the third bead alignment portion 96 comprises two alignment projections 114, 116 extending from the guide surface 86 outwardly at a similar angle to that at which the projections 24, 26 extend outwardly from the guide surface 20 of the corner bead 10.
  • the projections 114, 116 are offset further away from the corner joint line than the projections 24, 26 are. They are offset by a distance which is about the same as the width of the projections 24, 26 so that when the corner joint of the bead alignment means 70 and the corner joint of the corner bead 10 are aligned (i.e. when the surfaces 106, 108 of the bead alignment means 70 are aligned with the surfaces 110, 112 of the corner bead 10), the outer surface of the projections 24, 26 sit flush in contact with the inner surfaces of the projection 114, 116.
  • the projections 114, 116 extend upwardly beyond the upper extent of the rest of the bead alignment means, and in particular beyond the upper extent of the render guide 84.
  • the parts of the projections 114, 116 which extend beyond the upper extent of the render guide 84 form alignment tabs 114', 116' respectively (the purpose of these is described in more detail below).
  • the renderer places the bead alignment means 70 in its desired position at the base of the corner of the wall 50 and fixes the bead alignment means 70 there by dobbing on (as previously described) or by nailing or screwing the bead alignment means to the wall 50 in its desired position via the fixing holes.
  • the beads to be aligned, i.e. the corner bead 10 and the drip beads 30 can then be bought into alignment with the straight surfaces of the bead alignment means 70 and further engaged into place using the projections 111, 113 respectively for the drip beads and the alignment tabs 114', 116' for the corner bead 10.
  • Figures 8a to 8d schematically show how the corner bead 10 is bought into close alignment with the bead alignment means 30 at the third bead alignment portion 96.
  • the corner bead 10 is lowered towards the third bead alignment portion 96 while keeping the projections 24, 26 closer to the wall 50 than the alignment tabs 114', 116'. This may be aided by slight orientation away from the vertical as shown in figure 8b .
  • the projections 24, 26 are then pushed out away from the wall 50 so that their outer surfaces come into contact with the inner surfaces of the alignment tabs 114', 116'.
  • the straight surfaces 106, 108 of the bead alignment means 70 will also be in alignment with the straight surfaces 110, 112 of the corner bead 10.
  • the bead end 22 will also be in close alignment with the bead end 88 to effectively form a contiguous single bead end.
  • bead alignment portions may be used to align more than one bead. More than one bead alignment portion may be required to align a single bead.
  • the bead alignment means may take any other suitable form.
  • the alignment mechanism may not include the provision of a surface of the bead alignment means, which is arranged to be substantially flush with a surface of the bead to be aligned.
  • other alignment mechanisms may be provided as an alternative.
  • the bead aligment means may be used to align beads at joints which are not at or near a corner.
  • a bead alignment means according to this invention may be used to align two identical beads in simple series relationship next to each other - the advantage of using the bead alignment means of this invention in such a scenario is that quicker and easier consistent, quality alignment can be obtained.
  • many other joints can be facilitated using the bead alignment means of this invention - for example other rectangular, square, triangular or irregularly shaped (e.g. curved) joints.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)
  • Sewing Machines And Sewing (AREA)
  • Tyre Moulding (AREA)
EP08156202A 2007-05-15 2008-05-14 Supports d'alignement de baguettes Withdrawn EP1992763A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0709262A GB2449255A (en) 2007-05-15 2007-05-15 Bead alignment means

Publications (2)

Publication Number Publication Date
EP1992763A2 true EP1992763A2 (fr) 2008-11-19
EP1992763A3 EP1992763A3 (fr) 2012-01-25

Family

ID=38219389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08156202A Withdrawn EP1992763A3 (fr) 2007-05-15 2008-05-14 Supports d'alignement de baguettes

Country Status (2)

Country Link
EP (1) EP1992763A3 (fr)
GB (1) GB2449255A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019008568A1 (fr) * 2017-07-06 2019-01-10 Ber Ilan Agrafe réglable pour angle de plâtre

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2114044A (en) * 1936-04-17 1938-04-12 B & T Floor Company Frame for securing wall coverings
USRE34547E (en) * 1987-01-28 1994-02-15 Lewis Hein Wall board joint reinforcing system
WO1995000731A1 (fr) * 1993-06-18 1995-01-05 Wasserman James J Moulure d'angle de cloison seche a trois faces
US5544463A (en) * 1994-08-30 1996-08-13 Bergin; Blaine R. Prefinished corner bead

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB403218A (en) * 1932-12-01 1933-12-21 Henry Darbyshire Improvements in and connected with the forming of reinforced or strong and true internal angles of walls of buildings
US3024878A (en) * 1959-03-11 1962-03-13 Jr James E Huggins Connector bracket
US5531051A (en) * 1994-10-07 1996-07-02 Alabama Metal Industries Corporation Connector clip for corner bead
AU2004226938A1 (en) * 2003-11-05 2005-05-19 Orsen Peter Van Der Byl Beading

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2114044A (en) * 1936-04-17 1938-04-12 B & T Floor Company Frame for securing wall coverings
USRE34547E (en) * 1987-01-28 1994-02-15 Lewis Hein Wall board joint reinforcing system
WO1995000731A1 (fr) * 1993-06-18 1995-01-05 Wasserman James J Moulure d'angle de cloison seche a trois faces
US5544463A (en) * 1994-08-30 1996-08-13 Bergin; Blaine R. Prefinished corner bead

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019008568A1 (fr) * 2017-07-06 2019-01-10 Ber Ilan Agrafe réglable pour angle de plâtre

Also Published As

Publication number Publication date
GB2449255A (en) 2008-11-19
GB0709262D0 (en) 2007-06-20
EP1992763A3 (fr) 2012-01-25

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