EP2388384B1 - Plateforme pour comble - Google Patents

Plateforme pour comble Download PDF

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Publication number
EP2388384B1
EP2388384B1 EP11004099.5A EP11004099A EP2388384B1 EP 2388384 B1 EP2388384 B1 EP 2388384B1 EP 11004099 A EP11004099 A EP 11004099A EP 2388384 B1 EP2388384 B1 EP 2388384B1
Authority
EP
European Patent Office
Prior art keywords
joists
joist
leg
mounting
arm
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.)
Not-in-force
Application number
EP11004099.5A
Other languages
German (de)
English (en)
Other versions
EP2388384A2 (fr
EP2388384A3 (fr
Inventor
John Barry
Niall Lehane
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.)
Lehane Niall
Original Assignee
Lehane Niall
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 GBGB1008493.7A external-priority patent/GB201008493D0/en
Application filed by Lehane Niall filed Critical Lehane Niall
Publication of EP2388384A2 publication Critical patent/EP2388384A2/fr
Publication of EP2388384A3 publication Critical patent/EP2388384A3/fr
Application granted granted Critical
Publication of EP2388384B1 publication Critical patent/EP2388384B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/12—Load-carrying floor structures formed substantially of prefabricated units with wooden beams
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/14—Load-carrying floor structures formed substantially of prefabricated units with beams or girders laid in two directions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/024—Sectional false floors, e.g. computer floors
    • E04F15/02447—Supporting structures

Definitions

  • This invention relates to apparatus for providing a raised platform area in an attic having a plurality of generally parallel joists.
  • the invention also relates to a method of constructing the same.
  • apparatus for providing a platform area in an attic having a plurality of generally parallel joists, the apparatus comprising: a plurality of legs, each leg having a first end and a second end, and having a joist mounting at the first end comprising a pair of jaws configured to engage only one joist and a platform support at, or in the region of, the second, opposite end, the platform support at the second end comprising two upstanding substantially parallel walls; and a plurality of boards for being supported by the platform supports of at least two of the plurality of legs, each board comprising a groove in its lower surface for receiving one of the upstanding walls, the apparatus being arranged, in use, to provide a raised platform over adjacent joists with boards mounted on legs connected to different joists.
  • the apparatus may further comprise a plurality of longitudinal arms, wherein each leg further comprises an arm mounting arranged such that an arm can be connected to extend between two or more legs on respective joists.
  • the arm mounting can be adjacent the level of the platform support in order that the arm may provide underlying support to an overlying board across the inter-joist space.
  • the arm mounting may comprise an aperture, recess or niche and the arm may have sufficient length to span two or more inter-joists spaces by means of passing through the aperture, recess or niche of an intermediate leg.
  • each leg can be arranged such that the connected arm extends substantially transverse to the direction of the joists.
  • the walls may extend transverse to the direction of the jaws through which the joists will run in use.
  • Each leg may further comprise a spar mounting arranged generally parallel to the direction of the joists, and into which a longitudinal spar can be connected to provide additional underlying support to an overlying board or boards.
  • the joist mounting of each leg may comprise a pair of resilient jaws.
  • the jaws can be provided by upwardly projecting tabs within a U-shaped clamp.
  • the joist mounting can further comprise means for screwing or bolting the joist mounting to a joist.
  • the joist mounting and platform support may be provided as separate components separated by a longitudinal post, for example a wooden, plastics or metal post. In the case of a plastics or metal post, its cross section could be circular or, as is the preferred case here, generally rectangular with concave sides.
  • the joist mounting portion may be a U-shaped channel extending generally transverse to the orientation of the tongue and groove arrangement.
  • a raised platform for covering an additional layer of insulating material is constructed using a plurality of components made up of two types, namely a leg 8 and a rectangular board 20.
  • the leg 8 comprises an elongate plastics member 10 having, at a lower end, a joist mount 12 and at the other, upper end, a platform mount 14.
  • the leg 8 is formed as a single piece of material, although it could be made of separate parts if required.
  • the joist mount 12 has a fork-like shape in order to fit either side of an underlying joist of rectangular cross-section. Given the standardised dimensions of joists, it is straightforward to produce a mount whose inner recess will closely confirm with the joist width, thereby providing a secure fit when the fork is placed over the joist.
  • a pair of opposed tabs 13 extending from the top of the mount 12 in a direction generally parallel to the joist axis X-X have respective holes provided for screwing or bolting the leg 8 to the joist for added stability.
  • the platform mount 14 comprises three parallel walls 16, 17 defining a pair of support surfaces 15 either side of the central wall 16.
  • the central wall 16 is slightly taller than the outer walls 17.
  • the walls 16, 17 and support surfaces 15 extend along an axis Y-Y substantially transverse to the joist axis X-X.
  • each rectangular board 20 is made of wood or wood-derived material such as plywood.
  • Each board 20 is pre-cut to a standard size and, along both lengthwise edges, spaced inwards by a distance approximately equal to the width of one of the support surfaces 15, is a longitudinal groove 21.
  • the width and depth of each groove 21 is substantially the same as the corresponding dimensions of one of the outer walls 17, enabling a tongue-and-groove (or, alternatively, a mortise) joint to be made when placing a board 20 onto the platform mount 14 of a leg 8.
  • adhesive can be pre-applied but this is by no means necessary.
  • first and second lines of, in this case, four legs 8 are attached to respective joists 4 adjacent one another.
  • the legs 8 on each joist 4 are of course separated by the guidelines 23.
  • the resulting support surfaces 15 extend generally transverse to the joist axes.
  • a first rectangular board 20 is mounted onto eight underlying legs 8, specifically by locating the pre-cut grooves 21 over the tongues provided by the innermost outer walls 17 of each leg.
  • inner wall 16 terminates substantially level with the upper surface of the board 20; the presence of the inner wall between adjacent boards minimises lateral movement but there should be no (or minimal) protrusion to avoid creating a trip hazard.
  • FIG 10 shows the cavity that remains under the raised boards 20 connected in the manner described (for clarity, no insulating material is shown) and, in particular, it can be clearly seen how the outer walls 17 locate within the grooves 21 running transverse to the joists 4.
  • Figure 11 is a close-up view of the aforementioned leg 8 with dimensions shown for further information.
  • the resulting structure enables a raised platform or decking to be fitted (either on a 'new build' project or as a retrofit system) relatively easily and cost-effectively using just two types of component.
  • the structure enables the laying of at least two layers of insulating material whilst maintaining a storage or walking platform in spite of the joists being hidden.
  • the second embodiment comprises a set of legs 33 and boards 35 provided together with further components in the form of transverse arms 37 and, optionally, spars 39.
  • this raised platform system 30 provides a framework or lattice structure, as generally depicted in exploded form in the Figure.
  • each leg 33 comprises an elongate structure made of three separable parts.
  • the major part is an elongate hollow post 41 made of plastics material of square/rectangular cross section. Attached to the top of the post 41 is a plastics support cap 45 (hereafter simply "cap”) and, attached to the bottom is a joist mount 43.
  • cap plastics support cap 45
  • the cap 45 includes a V-shaped groove 47 recessed into its upper surface, below its upper support level, and which passes from one side to the other, including through opposed lateral faces of the cap. On the transverse faces are provided a pair of opposed pegs 51.
  • the mount 43 comprises a plastics component comprising a hollow base 61 of square/rectangular form defining a recessed interior 62 whose outer walls conform to and engage with the outer wall of the post 41. Extending below the base 61 is a pair of lateral arms 55, tapering slightly inwards. From the end of each arm 55, extending upwards back towards the base 61, is a resilient plastics tab 57, both tabs providing a pair of jaws which, in use, engage and grip the underlying joist 4. As shown in the schematics depicted above the main diagram, the jaws 57 allow the mount 43 to fit over (the lateral sides of) joists 4 of varying widths whilst remaining stable.
  • the joist mount 43 also includes a cantilevered plate 53, extending from one side thereof in alignment with the arms 55, that includes a pair of holes enabling the mount, when located over a joist 4, to be screwed to the joist to provide additional stability.
  • a cantilevered plate 53 extending from one side thereof in alignment with the arms 55, that includes a pair of holes enabling the mount, when located over a joist 4, to be screwed to the joist to provide additional stability.
  • One or more holes is/are suitable.
  • the cap 45 is moulded to provide a particular predefined shape enabling the arm components 37, 39 to be connected to it and for supporting the boards above it.
  • the upper surface of the cap 45 comprises a horizontal platform 48 having the V-shaped groove 47 recessed within it extending from one side to the other.
  • a pair of retaining tabs 50 extend partly over the groove 47 in the central region of the platform 48.
  • a pair of parallel walls 49 extend upwards from the platform 48, the purpose of each being to engage the underside groove of a board 35, in much the same way as the outer walls 17 of the first embodiment.
  • each peg 51 protrude from the cap surface.
  • the profile of each peg 51 is approximately triangular.
  • the mount 43 and cap 45 are arranged, in use, to be connected to the post 41 in a particular orientation relative to one another; the groove 47 is arranged to run along an axis transverse to that of the groove between jaws 55, 57.
  • the Figures show orthogonal X, Y, Z axes to give a general indication of the relative orientations with respect to joists 4.
  • the post 41 is shown in perspective and sectional views.
  • FIG 18 shows perspective and sectional views of one of the transverse arms 37; it will be seen that each arm 37 has an arrow-like cross-section with an upwardly projecting wall 71 and a lower triangular part 73.
  • the triangular part 73 is shaped so as to conform with the groove shape 47 in the cap 45, the wall 73 being narrow enough to pass between tabs 50 and projecting proud of the platform 48.
  • the cap 45 enables one or more arms 37, 39 to be connected into either the groove 47 or to one of the pegs 51 in order to provide additional support beneath the boards 35.
  • a transverse arm 37 will provide, as the name suggests, support in the direction generally transverse to the joists 4.
  • the spars 39 run generally parallel to the joists 4.
  • the spars 39 have either the same, or a similar cross-section, to that of the transverse arms 37 such that the ends can connect to the pegs 51. Both types can be made out of a plastics or metal material, for example steel or aluminium. As indicated in Figure 12 , the length of the each transverse arm 37 is greater than the width between adjacent joists 4; in fact each arm preferably extends from a first joist to a third joist via an intermediate joist, as enabled by the V-shaped groove 47 in each cap 45.
  • the spars 39 which are considered optional, need not be as long as the transverse arms 37. Their role is to add extra support underneath the boards, in addition to the transverse arms 37, in the orthogonal direction.
  • legs 33 and arms 37, 39 whilst preferable, is not essential. Adjustments and variations are possible; however, if rectangular boards 35 are to be used, this arrangement is the preferred choice.
  • the spars 39 By making the spars 39 a predetermined length, they can be used to assist spacing apart the legs 33 on each joist 4.
  • the fitter need only mark out a first row of legs 33, and then use the spars 39 extending parallel over the joists 4 to indicate where the next row of legs should be fitted.
  • first and second lines of, in this case, four legs 8 are attached to respective joists 4 adjacent one another. The legs 8 on each joist 4 are of course separated by the guidelines 23.
  • the resulting support surfaces 15 extend generally transverse to the joist axes.
  • An additional fixing or clip may be provided to enable the boards to be secured to the transverse arms 37. This may comprise providing a groove or continuous slot in each transverse arm 37 and a metal clip that would be pushed down vertically between the boards to engage into the slot.
  • the metal clip could, for example, be T-shaped.
  • an interconnecting arm may be provided to join together axially aligned transverse arms 37.
  • This interconnection may comprise a plug or tube that, for example, could push into or over one end of each adjacent arm 37. This may be important since the spacing between joists cannot be predicted and so it is not always the case that the transverse arms 37 will meet directly over a leg 33.
  • FIG. 21 to 26 a third embodiment outside the scope of the appended claims, now be described.
  • This embodiment is similar to the first in that it does not require the use of transverse arms or spars; it offers further advantages in that it does not require the legs to be accurately spaced apart in order to fix the boards over the parallel walls 39, as is the case in the second embodiment.
  • Figures 21 and 22 shows a leg 80 for use in this third embodiment.
  • the leg 80 is an elongate plastics member or post 83 having, at a lower end, a joist mount 81 and at the other, upper end, a platform mount 82.
  • the joist mount 81 comprises an adjustable bracket made up of an integral L-shaped member 84 which has a pair of inner channels 86 and a separate, slidable L-shaped member 87 the edges of which engage within the channels to allow adjustment of the mounting channel defined between jaws of the opposed L-shaped members.
  • Each of the L-shaped members 84, 87 have a friction or sawtooth -type surface 87 which together allow the L-shaped members to be fixed relative to each other; relative adjustment is achieved by applying an external force to one or both of the members to overcome the inherent resistance of the opposing sawtooth surfaces.
  • the platform mount 82 comprises a first horizontal surface 88, from which projects an inverted L bracket 89, approximately half-way along. On the opposite side of the L-shaped bracket 89 is a second horizontal surface 90.
  • the leg 80 is preferably used with boards 92 that differ from those described previously in that, rather than having a longitudinal slot, they have longitudinal grooves 94 formed along the lateral sides.
  • a board 92 is laid by inserting one lateral edge under the inverted L bracket 89 of each spaced apart leg 80 on the first row of joists, so that the bracket part extends into the groove 94. The opposite edge is then lowered onto the first horizontal surface 88 of each leg 80 in the next row. The board 92 is then screwed vertically to the legs 80 on the left hand side and horizontally to the legs on the right hand side, using the holes provided.
  • Figures 25 and 26 show the next board 92 being laid and the resulting surface.
  • each embodiments do not require there to be a fixed and predetermined distance between adjacent joists 4, which in practice will vary. Joists are commonly spaced on 400mm, 500mm or 600mm centres and, even then, there will be small variations either side of the stated figure. In a system where the boards are required to lie directly over two adjacent joists, a range of different board widths would have to be made available to ensure the lateral edges are supported. The above three embodiments, however, promote the use of boards which lie transverse to the direction of the joists, and whose length is such as to span two or more joists.
  • each leg engage or support the boards using at least a groove arrangement aligned or extending generally transverse to the direction of the joists, thereby defining the laying direction and allowing adjustment of a board's position along this transverse direction.
  • a board there is no requirement for a board to be of a particular width or length and the system is totally flexible.
  • the first and second embodiments use a tongue (two upstanding from the support surface) and groove (two in each board) arrangement; the third embodiment employs a tongue portion formed along the lengthwise edge of each board arranged to engage within the channel defined by the L-shaped bracket 89.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • Floor Finish (AREA)

Claims (11)

  1. Appareil pour la réalisation d'une zone de plate-forme dans un grenier, comprenant une pluralité de solives globalement parallèles (4), l'appareil comprenant :
    une pluralité de pieds (8), chaque pied possédant un premier bout et un deuxième bout, et étant doté d'une monture de solive (12) au premier bout comprenant une paire de mâchoires configurées pour n'engager qu'une seule solive, et un support de plate-forme (14) au deuxième bout opposé, ou dans la zone de celui-ci, le support de plate-forme au deuxième bout comprenant deux parois verticales (17) substantiellement parallèles, et :
    une pluralité de planches (20) pouvant être supportées par les supports de plate-forme d'au moins deux de la pluralité de pieds, chaque planche comprenant une cannelure (21) dans sa surface inférieure pour recevoir une des parois verticales (17),
    l'appareil étant agencé, en cours d'usage, pour former une plate-forme surélevée au-dessus de solives adjacentes, avec des planches montées sur des pieds raccordés à différentes solives.
  2. Appareil selon une quelconque des revendications précédentes, comprenant une pluralité de bras longitudinaux (37), chaque pied comprenant en outre une monture de bras agencée de sorte qu'un bras puisse être raccordé pour s'étendre entre deux ou plusieurs pieds sur des solives respectives.
  3. Appareil selon la revendication 2, la monture de bras étant adjacente au niveau du support de plate-forme (14) afin que le bras puisse assurer le support sous-jacent d'une planche sus-jacente dans l'espace inter-solives.
  4. Appareil selon la revendication 2 ou la revendication 3, la monture de bras comprenant une ouverture, un évidement ou une niche, et la longueur du bras étant suffisante pour couvrir deux ou plusieurs espaces inter-solives par le biais de son passage à travers l'ouverture, l'évidement ou la niche d'un pied intermédiaire.
  5. Appareil selon une quelconque des revendications 2 à 4, la monture de bras de chaque pied étant agencée de sorte que le bras connecté s'étende substantiellement transversalement à l'orientation des solives.
  6. Appareil selon une quelconque des revendications précédentes, les parois verticales (17) s'étendant le long du deuxième bout dans une direction transversale à la direction des mâchoires sur le premier bout à travers lequel les solives passent en cours d'usage.
  7. Appareil selon une quelconque des revendications précédentes, chaque pied comprenant en outre une monture à longeron agencée parallèlement à l'orientation des solives, et dans laquelle un longeron longitudinal (39) peut être raccordé pour servir de support sous-jacent supplémentaire à une ou plusieurs planches sus-jacentes.
  8. Appareil selon une quelconque des revendications précédentes, la monture de solive de chaque pied comprenant une paire de mâchoires élastiques.
  9. Appareil selon la revendication 9, les mâchoires étant réalisées par des pattes saillantes vers le haut au sein d'une fixation en U.
  10. Appareil selon la revendication 9 ou la revendication 10, la monture de solive comprenant en outre un dispositif pour visser ou boulonner en outre la monture de solive sur une solive.
  11. Appareil selon une quelconque des revendications précédentes, la monture de solive et le support de plate-forme étant pratiqués comme des composants distincts séparés par un montant longitudinal (41).
EP11004099.5A 2010-05-21 2011-05-18 Plateforme pour comble Not-in-force EP2388384B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB1008493.7A GB201008493D0 (en) 2010-05-21 2010-05-21 Attic platform
GB1014237.0A GB2480506B (en) 2010-05-21 2010-08-26 Attic platform.
US13/004,194 US8769899B2 (en) 2010-05-21 2011-01-11 Attic platform

Publications (3)

Publication Number Publication Date
EP2388384A2 EP2388384A2 (fr) 2011-11-23
EP2388384A3 EP2388384A3 (fr) 2014-10-15
EP2388384B1 true EP2388384B1 (fr) 2018-03-21

Family

ID=44318462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11004099.5A Not-in-force EP2388384B1 (fr) 2010-05-21 2011-05-18 Plateforme pour comble

Country Status (1)

Country Link
EP (1) EP2388384B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9435113B2 (en) 2014-05-22 2016-09-06 Certainteed Corporation System, method and apparatus for attic rafter extension for storage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5197251A (en) * 1989-01-09 1993-03-30 Krysak Jerry J Insulation protection system
NL9101652A (nl) * 1991-09-30 1993-04-16 Damtrade B V Vloersysteem met tegels.
IT226426Z2 (it) * 1992-04-01 1997-06-16 Plotini Allestimenti Struttura di supporto, per l'esecuzione di pavimenti sospesi,impalcatie simili
GB2354790B (en) * 1999-08-28 2004-02-11 Neil Ernest Allen A support for a scaffolding platform
US20070028550A1 (en) * 2005-07-20 2007-02-08 Clapper Edward O Rafter platform
GB2438620A (en) * 2006-05-30 2007-12-05 Nicholas Michael Milner Insulated loft flooring component
US7874114B2 (en) * 2006-10-20 2011-01-25 Snyder National Corporation Radiant heat barrier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2388384A2 (fr) 2011-11-23
EP2388384A3 (fr) 2014-10-15

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