EP2354371A1 - Stützsystem für einen Fußboden - Google Patents

Stützsystem für einen Fußboden Download PDF

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Publication number
EP2354371A1
EP2354371A1 EP10151483A EP10151483A EP2354371A1 EP 2354371 A1 EP2354371 A1 EP 2354371A1 EP 10151483 A EP10151483 A EP 10151483A EP 10151483 A EP10151483 A EP 10151483A EP 2354371 A1 EP2354371 A1 EP 2354371A1
Authority
EP
European Patent Office
Prior art keywords
supporting
stringer
elements
screw thread
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.)
Withdrawn
Application number
EP10151483A
Other languages
English (en)
French (fr)
Inventor
Stig B. Knudsen
Christian Bo Østen
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.)
Subfloor ApS
Original Assignee
Subfloor ApS
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 Subfloor ApS filed Critical Subfloor ApS
Priority to EP10151483A priority Critical patent/EP2354371A1/de
Priority to EP11700678.3A priority patent/EP2526242B1/de
Priority to PCT/EP2011/050866 priority patent/WO2011089239A1/en
Publication of EP2354371A1 publication Critical patent/EP2354371A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E04F15/02044—Separate elements for fastening to an underlayer
    • 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
    • E04F15/02044—Separate elements for fastening to an underlayer
    • E04F2015/0205—Separate elements for fastening to an underlayer with load-supporting elongated furring elements between the flooring elements and the underlayer
    • E04F2015/02055—Separate elements for fastening to an underlayer with load-supporting elongated furring elements between the flooring elements and the underlayer with additional supporting elements between furring elements and underlayer
    • E04F2015/02061—Separate elements for fastening to an underlayer with load-supporting elongated furring elements between the flooring elements and the underlayer with additional supporting elements between furring elements and underlayer adjustable perpendicular to the underlayer
    • 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
    • E04F15/02044—Separate elements for fastening to an underlayer
    • E04F2015/02105—Separate elements for fastening to an underlayer without load-supporting elongated furring elements between the flooring elements and the underlayer
    • E04F2015/02127—Separate elements for fastening to an underlayer without load-supporting elongated furring elements between the flooring elements and the underlayer adjustable perpendicular to the underlayer

Definitions

  • the subfloor may be made of wooden boards which support a flooring, for example laminated wood, ceramic tile, or stone, or a floor covering, such as an area rug, vinyl or linoleum, the flooring or floor covering providing a walking surface. In some cases the subfloor itself may provide a walking surface and no additional flooring or floor covering is used.
  • the floor joists may be supported by bearers or may be supported directly by a concrete slab. To achieve a level floor, wedges are conventionally placed under the floor joists to adjust the height of the floor joists relative to the points where the floor joists are supported by the bearers or the concrete slab.
  • the conventional floor construction has a number of drawbacks, such as the use of wooden floor joists which may vary greatly in quality and are susceptible to damage and warping due to water and microorganisms, the time-consuming procedure of using wedges to achieve a level floor, the squeaky noise from the wood-wood contact between floor joists and subfloor, the weight of the floor joists which render them hard to handle, etc.
  • a number of systems which generally include height adjustable pedestals supporting stringers which may support a floor, floor panels or a subfloor, predominantly for applications in computer halls and fair stands.
  • Such systems are described in amongst others WO2006053813 , EP 1247922 , DE3913984 , GB1140957 , GB1035817 , DE20120006 (utility model), WO72008055292 , EP0980944 , EP1528181 , US4893441 , US4982539 , EP1760222 , FR2905395 , EP1171678 , EP0353360 , and US5048242 .
  • the above described systems mainly describe stringers having unique ends for connection to pedestals, thus any shortening of the stringer will cut of at least one of the unique ends, destroying the connection to the pedestals. Even where the stringer may be shortened, such shortening may only be possible at specific positions along the stringer and may require the use of motorized cutting tools or the like. Further, the above described systems may be tiresome and unergonomic to level as the pedestals may in some cases require access from below in order to be adjusted. In addition the above described systems may be difficult to combine with existing bearers or joists, particularly in older houses and building structures.
  • a support system for supporting a floor relative to an underlying surface comprising
  • a support system for supporting a floor relative to an underlying surface comprising
  • floor is to be understood as comprising a subfloor, a floor covering, a flooring or any other generally planar surface providing a walking surface or a surface upon which furniture may be supported in a building construction
  • planar when used as an attribute for a surface, is to be understood as comprising also planar surfaces having surface structures such as grooves, ribs, creases, furrows, dimples, pits etc.
  • cuttable is to understood as a material which may be severed or cut by a manual tool such as a knife, a saw, a chisel, an axe, or a power tool such as an electric or pneumatic saw, etc., a manual tool being preferred.
  • Cuttable materials may for example comprise plastics such as nylon etc.
  • the panel stringer of the first and second aspect of the present invention is made from thin metal plate which has the advantage that the metal plate is impervious to water provided a suitable surface treatment, such as galvanizing. Further surface treatments include plating, painting, plastic coating etc. Further the thin metal plate gives a low weight to the panel stringer and the panel stringer is easily shortened by shears or other tools.
  • the inverted U-shaped cross-section profile provides a supporting surface for supporting a floor while the side portions provide the load bearing strength for the panel stringer.
  • the spaced apart apertures of the first aspect of the support system according to the present invention allows the panel stringer to be supported at positions along the length of the panel stringer, thus allowing long panel stringers to be used, while the panel stringer according to the second aspect of the present invention may be provided in shorter, easily transportable and easily stored units
  • the spaced apart apertures may be set 15-30 cm apart, such as 20-25 cm, preferably 20 cm. It is contemplated within the context of the present invention that the load bearing capacity of the support system according to the first aspect of the present invention may be varied by supporting the panel stringer with a supporting element and corresponding supporting leg at each of the spaced apart apertures for maximum load bearing capacity, or alternatively at every other or every third etc.
  • the supporting system according to the first aspect of the present invention may be used both for applications requiring high load bearing capacity, such as to support a floor in an office or shop, as well as applications requiring low load bearing capacity, such as a for residential house.
  • the supporting elements according to the second aspect of the present invention could be used with the panel stringer according to the first aspect of the present invention, thus supporting the ends of the panel stringer using the supporting elements according to the second aspect of the present invention, and adding the supporting elements according to the first aspect of the present invention to support the panel stringer between the ends thereof to increase the load bearing capacity when required.
  • the panel stringer could be made from plastic, compressed wood, etc.
  • the supporting surface may include surface structures such as grooves, ribs, creases, furrows, dimples, pits, etc., which may serve to facilitate the fastening of a floor to the panel stringer using nails or screws by providing pilot holes for a the nails or screws.
  • the surface structures may serve to increase the load bearing capacity of the support system by strengthening the panel stringer.
  • the supporting elements of the first aspect of the support system according to the present invention are easily installed within the panel stringer and are longitudinally retained by the supporting leg at one of the apertures, thus the number of different components is decreased as the supporting leg performs multiple functions.
  • the interior screw thread of the supporting element according to the first and second aspect of the present invention in combination with a supporting leg having an exterior screw thread allows the panel stringer to be adjustable to a desired height. Adjusting the height is performed from above which provides better ergonomics for the person making the adjustment.
  • the supporting element according to the first aspect of the present invention may cooperate with the panel stringer to prevent rotation of the supporting element relative to the panel stringer for example by a burr-like arresting element, a hole in the panel stringer being engaged by a pin extending from the supporting element, an adhesive substance or tape provided between the supporting element and the panel stringer, a magnet attached to, or moulded into the supporting element engaging the panel stringer when the panel stringer is made from steel or iron, short spikes being provided on the underside of the interconnectiong portion around the aperture, the spikes engaging the supporting element, etc.
  • This is advantageous as it allows the supporting leg to be driven through the supporting element singlehandedly.
  • the cuttable material of the supporting leg allows any excess of supporting leg, which may extend upwardly from the panel stringer once the panel stringer has been levelled and adjusted to the correct height, to be easily and quickly cut off using a saw or other manual tool, whereafter the floor may be attached to the panel stringer.
  • the support system according to the first and second aspect of the present invention may be levelled also on an unlevel underlying surface.
  • the supporting legs may be made with indications of fracture where the supporting legs may be easily shortened by breaking off the supporting leg at one of the indications of fracture.
  • the tool engageable part of the top end of the supporting leg allows the supporting leg to, in addition to being driven by hand, be driven by a tool, such as a screwdriver, electric screwdriver, or other tool, thus simplifying the levelling and height adjustment of the panel stringer.
  • the tool engageable part may comprise a screw drive such as a slotted screw drive, a cross screw drive, a square screw drive, a hexagonal screw drive, a torx screw drive etc.
  • each of the supporting elements comprises a rectangular top plate, the rectangular top plate supporting the panel stringer and engaging the side portions to prevent rotation of the supporting element relative to the panel stringer. This is advantageous as it allows the supporting leg to be screwed in singlehandedly.
  • the panel stringer in cross section profile comprises a transition portion joining the generally planar interconnecting portion and one of the side portions and defining a sidewall displaced outwardly relative to the one side portion.
  • the top plate, or the engagement flange, of the supporting elements may be engageable by the transition portion.
  • the panel stringer in cross section profile comprises an inwardly projecting flange perpendicularly joined to one of the side portions.
  • the top plate, or the engagement flange, of the supporting elements may be engageable by the flange. This is advantageous as it may vertically retain the supporting element within the panel stringer which simplifies the handling of the support system and may retain the panel stringer vertically.
  • the panel stringer in cross section profile comprises an inwardly projecting protrusion on one of the side portions.
  • the supporting element, or the engagement flange may be engageable by the protrusion. This is advantageous as it may vertically retain the supporting element within the panel stringer which simplifies the handling of the support system and may retain the panel stringer vertically.
  • one of the side portions of the panel stringer in cross section profile comprises an inwardly converging lower end.
  • the supporting element, or the engagement flange may be engageable by the lower end. This is advantageous as it may vertically retain the supporting element within the panel stringer which simplifies the handling of the support system and may retain the panel stringer vertically.
  • one of the side portions of the panel stringer in cross section comprises an inwardly rolled edge.
  • the supporting element, or the engagement flange may be engageable by the rolled edge
  • the panel stringer according to the second aspect of the present invention although being defined as having an inverted U-shaped cross-section profile could instead have a box-shaped profile or a triangular profile and the engagement flange of the supporting elements could be engageable by the sides of the box-shaped profile or the triangular profile
  • the thin metal plate of said panel stringer has a thickness of 0.4-1, preferably 0.5-0.6 or most preferably 0.6 mm This is advantageous as it allows the panel stringer to simply, and without requiring motorized tools, be cut, for example by shears, thus simplifying the assembly of the support system. Additional tools suitable for cutting the panel stringer include saws etc. In addition to manual tools the panel stringer can also be cut with an electric circular saw, a pneumatic saw, etc. A further advantage is that the material needed for each panel stringer, and thus the cost, is reduced.
  • the vertical through-going bore of each of the supporting elements has a diameter smaller than the diameter of each of the supporting legs and comprises a cut defining a deflectable wall portion being deflectable and being engageable by the side portions when deflected.
  • the vertical through-going bore of each of the supporting elements has a diameter smaller than the diameter of each of the supporting legs and comprising an elongate cutout extending along a part of the vertical through-going bore into the engagement flange, the vertical through-going bore, the cutout and the engagement flange being widenable and the engagement flange being engageable by the side portions when widened
  • This is advantageous as it allows the engagement flange of the supporting element to be longitudinally retained in the panel stringer once the supporting leg has been driven into the supporting element, thus further increasing the stability of the assembled support system.
  • each of the supporting legs further comprises a protrusion defining a tool part engageable by the tool engageable part of the top end.
  • each of the supporting legs is interrupted by a first multitude of notches defining a second multitude of screw thread segments and each of the supporting legs comprises a protrusion extending axially from a perimeter of the top end, the protrusion being engageable by one of the notches on a further supporting leg of the supporting legs.
  • each of the supporting legs is interrupted by a first multitude of notches defining a second multitude of screw thread segments and each of the supporting elements comprises a resiliently deflectable tongue in the wall of the vertical through-going bore, the tongue comprising a protrusion engageable by each of the notches.
  • the protrusion on the tongue ensures that the supporting leg does not turn unintentionally, such as when the support structure is subjected to vibrations from for example a washing machine etc, once the supporting leg has been driven properly into the supporting element.
  • each of the base elements further comprises a perimetrically positioned through-going hole adapted to receive a fastening member. This is advantageous as it allows the bottom ends of the supporting legs to be fixated relative the underlying surface, thus it increases the stability of the support system.
  • a base supporting system for supporting a floor structure between two generally parallel floor joists or two generally parallel exposed bearers in a building structure comprising
  • the supporting stringer of the third aspect of the present invention is made from thin metal plate which has the advantage that the metal plate is impervious to water provided a suitable surface treatment, such as galvanizing. Further surface treatments include painting, plating and plastic coating. Further the thin metal plate gives a low weight of the supporting stringer
  • the inverted U-shaped cross-section profile provides a base supporting surface for supporting a floor structure while the side portions provides the load bearing strength for the supporting stringer.
  • the suspension brackets are easily installed within the supporting stringer.
  • the bottom flange is prevented from rotating relative the panel stringer when inserted in the supporting stringer which increases the stability of the base supporting system.
  • the supporting stringer in cross section profile comprises a transition portion joining the generally planar interconnecting portion and one of the side portions and defining a sidewall displaced outwardly relative to the one side portion of said supporting stringer.
  • the bottom flange may be engageable by the transition portion. This is advantageous as it may vertically retain the bottom flange within the supporting stringer which simplifies the handling of the base supporting system and may retain the supporting stringer vertically.
  • the supporting stringer in cross section profile comprises an inwardly projecting flange perpendicularly joined to one of the side portions of the supporting stringer.
  • the bottom flange may be engageable by the flange of the supporting stringer. This is advantageous as it may vertically retain the bottom flange within the supporting stringer which simplifies the handling of the base supporting system and may retain the supporting stringer vertically.
  • the supporting stringer in cross section profile comprises an inwardly projecting protrusion on one of the side portions of the supporting stringer.
  • the bottom flange may be engageable by the protrusion. This is advantageous as it may vertically retain the bottom flange within the supporting stringer which simplifies the handling of the support system and may retain the supporting stringer vertically.
  • one of the side portions of the supporting stringer in cross section profile comprises an inwardly converging lower end.
  • the bottom flange may be engageable by the lower end of the supporting stringer This is advantageous as it may vertically retain the bottom flange within the supporting stringer which simplifies the handling of the base supporting system and may retain the supporting stringer vertically.
  • one of the side portions of the supporting stringer in cross section comprises an inwardly rolled edge.
  • the bottom flange may be engageable by the rolled edge This is advantageous as it may vertically retain the bottom flange within the supporting stringer which simplifies the assembly of the base supporting system and may retain the supporting stringer vertically. A further advantage is that it may increase the load bearing capacity of the supporting stringer
  • the supporting stringer according to the third aspect of the present invention although being defined as having an inverted U-shaped cross-section profile could instead have a box-shaped profile or a triangular profile and the bottom flange of the suspension bracket could be engageable by the sides of the box-shaped profile or the triangular profile.
  • each bottom flange comprises a horizontal transversal bend defining first and second non-parallel portions. This is advantageous as it may retain the bottom flange longitudinally in the supporting stringer, thus simplifying the handling of the base supporting system
  • the thin metal plate of said supporting stringer has a thickness of at least 1 mm such as 1.5 mm. This is advantageous as it increases the strength of the supporting stringer while still minimizing the material needed for each supporting stringer, and thus the cost.
  • the supporting stringer may be cut by an angle grinder, which may be electrically or pneumatically driven or a rotary metal saw which may be electrically or pneumatically driven. It is also contemplated within the context of the present invention that the supporting stringer could be cut by a hacksaw.
  • the base supporting system according the third aspect of the present invention further comprises the support system according to a preferred embodiment of the first or second aspects of the present invention for providing the underlying surface, the second side of each of the base elements being slidably attachable to the base supporting surface of the supporting stringer, and, the method according to the sixth aspect of the present invention further comprises the steps of:
  • the base supporting system according to the third aspect of the present invention is advantageous as it allows the support system according to the first or second aspects of the present invention to be integrated with existing floor joists or bearers in building structures It is especially suitable when the existing floor joists or bearers are set too far apart, typically more than 40 or 60 cm, in relation to local building codes or regulation as it provides a base supporting surface for a new floor joist or bearer, or preferably, for the support system according to the first or second aspect of the present invention.
  • Fig. 1 shows a support system, in its whole designated the reference numeral 10, according to an embodiment of corresponding first and fourth aspects of the present invention.
  • the support system 10 comprises a panel stringer, in its whole designated the reference numeral 12, a plurality of supporting elements, one of which is shown and designated the reference numeral 40, and a plurality of supporting legs, one of which is shown and designated the reference numeral 60.
  • the support system 10 further comprises a plurality of base elements, one of which is shown and designated the reference numeral 80, which support the support system 10 from a base supporting system, in its whole designated the reference numeral 100.
  • the base supporting system 100 comprises a supporting stringer, in its whole designated the reference numeral 112, and two suspension brackets, one of which is designated the reference numerals 140 which attach the base supporting system 100 to first and second floor joist, designated the reference numeral 2 and 4, respectively.
  • the panel stringer 12 comprises a supporting surface, designated the reference numeral 14 attached to first and second side portions, designated the reference numerals 16 and 18, respectively, along a first and second upper edges, designated the reference numerals 20 and 22 respectively.
  • the side portions 16 and 18 further comprise first and second lower edges, designated the reference numerals 24 and 26, respectively, which are inwardly rolled.
  • the supporting surface 14 further comprises a plurality of apertures, one of which is designated the reference numeral 28.
  • the side portions 16 and 18 are joined to the supporting surface 14 via first and second sidewalls, designated the reference numerals 30 and 32, respectively, and first and second transition portions, designated the reference numerals 34 and 36, respectively.
  • the panel stringer 12 may be made from thin metal plate such as steel plate, aluminium plate, etc, and may be fabricated through rolling, extrusion, drawing etc.
  • the thickness of the material of the panel stringer is preferably 0.6 mm as this dimension yields a good strength while also allowing the panel stringer 12 to be cut to a desired length by shears or other simple hand tools. Further this dimension allows a floor such as a sub floor (not shown) to be fastened directly to the supporting surface 14 of the panel stringer 12 using self tapping screws (not shown) which penetrate the supporting surface 14.
  • the apertures 28 shall have a diameter sufficient to allow the supporting leg 60 to pass through the aperture 28.
  • the supporting element 40 comprises a cylindrical body, designated the reference numeral 42 joined perpendicularly to a top plate, designated the reference numeral 44.
  • a plurality of cuts in the wall of the body 42 and the top plate 44 define first and second resiliently deflectable tongues comprising protrusions, designated the reference numeral 52 and 54, respectively, spaced apart by 135°.
  • the supporting element 40 is preferably made from moulded plastic such as nylon or alternatively from fibre reinforced polyester resins or epoxy resins.
  • the height of the supporting element 40 is typically less than the height of the panel stringer 12, and the body 42 may, or may not, contact the inner wall of the side portions 16 and 18.
  • the supporting leg 60 is generally cylindrical and comprises a top end, designated the reference 62 and a bottom end, designated the reference numeral 64.
  • An exterior screw thread, designated the reference numeral 66 is provided on the exterior of the supporting leg 60.
  • the exterior screw thread 66 is interrupted by a multitude of regularly spaced apart notches, one of which is designated the reference numeral 60, and the top end 62 of the supporting leg 60 further includes a protrusion, designated the reference numeral 70.
  • the bottom end 64 of the supporting leg 60 comprises a tool part, designated the reference numeral 72, comprising a recess (not shown), and the top end 62 comprises a recess, designated the reference numeral 74, which include a tool engageable part (not shown).
  • the supporting leg 60 is made from a cuttable material, preferably moulded plastic such as nylon or alternatively from fibre reinforced polyester resins or epoxy resins.
  • the supporting leg 60 may have a length of about 5 cm to 30 cm and a diameter sufficient small to allow it to pass through the aperture 28 of the panel stringer 12.
  • the notches 68 are spaced evenly each 90° along the exterior screw thread 66 around the supporting leg 60, but may be spaced closer together or set wider apart.
  • the base element 80 comprises first and second generally rectangular sides, designated the reference numerals 82 and 84, respectively.
  • the first side 82 further comprises a centred recess, designated the reference numeral 86 comprising a centred pin, designated the reference numeral 88.
  • the second side 84 further comprises a slot, designated the reference numeral 90, for engagement with the base supporting system 100 as will be described in more detail below.
  • Fastening holes one of which is designated the reference numeral 92, are provided on the perimeter of the base element 80.
  • the base element may be made from moulded plastic such as nylon or alternatively from fibre reinforced polyester resins or epoxy resins.
  • the second side 84 may also comprise the recess 86 and pin 88 of the first side, thus rendering the base element 80 reversible so that the load supported by the support system 10 may be more uniformly spread, when the base element 80 is turned upside down, to the support substrate as will be described in relation to figs. 3 and 4 .
  • the pin 88 is protected when the base element is turned upside down by its position in the recess 86 which ensure that the pin is below the datum of the first side 82
  • the supporting stringer 112 of the base supporting system 100 is analogous to the panel stringer 12, the difference being the omission of the apertures 28 of the panel stringer 12 and a larger thickness of the material used for the supporting stringer 112 when compared to the panel stringer 12.
  • the supporting stringer 112 comprises a base supporting surface, designated the reference numeral 114 attached to first and second side portions, designated the reference numerals 116 and 118, respectively, along a first and second upper edges, designated the reference numerals 120 and 122 respectively.
  • the side portions 116 and 118 further comprise first and second lower edges, designated the reference numerals 124 and 126, respectively, which are inwardly rolled.
  • the side portions 116 and 118 are joined to the supporting surface 114 via first and second sidewalls, designated the reference numerals 130 and 132, respectively, and first and second transition portions, designated the reference numerals 134 and 136, respectively.
  • the supporting stringer is made from the same material and using the same manufacturing process as the panel stringer.
  • the thickness of the material used for the supporting stringer is preferably 1,5 mm as this gives an increased strength and load bearing capacity which may be needed when the base supporting system 100 as shown in fig. 1 is used to support the support system 10 between to floor joists 2 and 4, however, the height and width of the base supporting stringer 112 are typically similar to the height and width of the panel stringer 12.
  • the suspension bracket 140 of the base supporting system 100 comprises to and bottom flanges, designated the reference numerals 144 and 146, respectively, perpendicularly extending in opposite directions from a vertical web, designate the reference numeral 142.
  • the bottom flange 146 is joined to a flange tip, designated the reference numeral 148, which is slightly angled in relation to the bottom flange 146.
  • the web 142 and the top flange 144 comprise attachment holes, one of which is designated the reference numeral 150 for fastening the suspension bracket 140 to the floor joist 104 using screws, one of which is designated the reference numeral 152.
  • the suspension bracket 140 is made from metal such as steel or aluminium and may be manufactured by rolling, bending using a press brake, or the top and bottom flanges 144 and 146 can be welded to the web 142.
  • the support system 10 is assembled by sliding the supporting element 40 into the panel string 12 whereby the top plate 44 of the supporting element 40 is vertically retained within the panel stringer 12 the engagement of the transition portions 34 and 36 with the top plate since the width of the side 46 of the top plate 44 is smaller than the perpendicular distance between the sidewalls 32 and 34, but larger than the perpendicular distance between the side portions 16 and 18.
  • the supporting element 40 is thus slid along the panel stringer until it reaches a position of registration with aperture 28
  • the supporting leg 60 is then passed with its bottom end 64 first through the aperture 28 and into the bore 48 whereby the exterior screw thread 66 engages the interior screw thread 50 as the supporting leg 60 is turned clockwise.
  • a tool may be used to engage the recess 74 to facilitate driving the supporting leg 60 through the supporting element 40, but the supporting leg 60 may also be driven by turning it clockwise by hand
  • a tool may for example be manufactured to comprise a lower part analogous to the bottom end 64 and the tool part 72 of the supporting leg 60 coupled to an upper part comprising a handle for simplifying turning the supporting leg 60, or alternatively the upper part of the tool may include a bit engageable by an electric screwdriver or the like.
  • the recess 74 of the supporting leg 60 may further comprise a screw drive engageable directly by a screwdriver or electric screwdriver.
  • each notch 68 is sequentially engaged by the protrusions on the locking tongues 52 and 54 as each locking tongue 52 and 54 returns to its relaxed, non-deflected, position with the protrusion engaging the notch.
  • the protrusion on one of the longing tongues is forced out of the notch 60 which deflects the locking tongue.
  • the other protrusion on the other locking tongue engages the notch 68 as the other locking tongue becomes relaxed.
  • the support system 10 is shown in use with the base supporting system 100, where the base element 80 serves as an interface between the support system 10 and the base supporting system 100, however, the base support system 10 may be used without the base supporting system 100 and without the base element 80 on support substrates which can support the supporting leg 60 directly
  • the base support system 10 may be omitted, however, for supporting the base support system 10 on a slippery surface and or narrow surface such as the base supporting surface 114 of the supporting stringer 112, or on a soft substrate such as a particle board, the base element 80 ensure that the supporting leg 60 does not slip, and reduces the pressure on the substrate.
  • the recess in the tool part 72 of the supporting leg 60 may engage the pin 88 of the base element 80.
  • the base supporting system 100 is assembled by inserting the lower flange 146 of each suspension bracket 140 endwise into the supporting stringer whereby the lower flange 146 becomes vertically retained as the transversal width of the lower flange is smaller than the perpendicular distance between the inner walls of the sidewalls 130 and 132 but larger than the perpendicular distance between the side portions 116 and 118. Further the lower flange 146 is longitudinally retained by the flange tip 148 which due to its angle with the lower flange resiliently abuts the underside of the base supporting surface. Each suspension bracket is then fastened to one of the floor joist 2 and 4. The slot 90 of the base element 80 then straddles the base supporting surface 114 of the supporting stringer 112 to support the support system 10.
  • the support system 10 is assembled and supported by the assembled base support system 100 between the floor joists 2 and 4.
  • the panel stringer 12 has been adjusted to the correct height and been levelled to provide a level surface for the floor (not shown) which is to be supported by the panel stringer 12
  • the supporting leg are cut of using a knife, a saw, a chisel etc, and the floor (not shown) may be attached to the supporting surface of the panel stringer 12 using self tapping screws, glue, etc. If, as will be described in relation to fig.
  • a second supporting leg designated the reference numeral 60 I , identical to the first supporting leg 60, may be connected to the supporting leg 60 to extend the supporting leg 60 and increase the height to which the panel stringer 12 can be elevated.
  • the bottom part 64 I with the tool part 72 I of the second supporting leg 60 I is thus inserted into the recess 74, of the supporting leg 60, which has a shape, and a tool engageable part (not shown), which are complementary to the bottom end 64 I and the tool part 72 I of the second supporting leg 60 I .
  • the protrusion 70 on the supporting leg 60 engages the notch 68 I on the second supporting leg 60 I , thus allowing a higher torque to be transmitted from the second supporting leg 60 I to the supporting leg 60.
  • FIG. 3 further turns of the supporting leg 60 extended by the second supporting leg 60 I has elevated the panel stringer 12 above the height reachable by the supporting leg 60 alone.
  • the enlargement shows in detail the protrusion 70 engaging the notch 68 I and the engagement between the bottom end 64 I and the tool part 72 I of the second supporting leg 60 I with the recess 74 of supporting leg 60.
  • a third supporting leg designated the reference numeral 60 II , elevating the other end of the panel stringer 12.
  • the third supporting leg 60 II is driven through a second aperture, designated the reference numeral 28 I , of the apertures in the panel stringer 12 and through a second supporting element within the panel stringer (not shown) in registration with the aperture 28 I , and is supported by a second base element, designated the reference numeral 80 I , which is fastened to a support substrate, designated the reference numeral 6, by a second set of screws, one of which is designated the reference numeral 94 I through fastening holes, one of which is designated the reference numeral 92 I .
  • Fig. 4 shows a support system, in its whole designate the reference numeral 160, according to embodiments of corresponding second and fifth second aspects of the present invention.
  • the support system 160 is shown comprising a plurality of panel stringers, one of which is designated the reference numeral 162, which is similar to the panel stringer 12 of the support system 10, the difference being that the apertures 28 of the panel stringer 12 are omitted in the panel stringer 162.
  • the panel stringer 162 comprises a supporting surface, designated the reference numeral 164 attached to and first and second side portions, designated the reference numerals 166 and 168, respectively, along a first and second upper edges, designated the reference numerals 170 and 172 respectively.
  • the side portions 166 and 168 further comprise first and second lower edges, designated the reference numerals 174 and 176, respectively, which are inwardly rolled.
  • the side portions 166 and 168 are joined to the supporting surface 164 via first and second sidewalls, designated the reference numerals 178 and 180, respectively, and first and second transition portions, designated the reference numerals 182 and 184, respectively.
  • the panel stringer 162 may be made from the same materials, using the same manufacturing methods, as the panel stringer 12 and the material preferably has the same thickness of 0.6 mm as the panel stringer 12, however, as the panel stringer 162 of the support system 160 is only supported at the ends of the panel stringer 162, thicker material may be contemplated for longer panel stringer 162.
  • the panel stringer 162 may be 0.9 m long for simple handling but may be manufactured, or shortened, to any length.
  • the support system 160 further comprises a plurality of supporting elements, one of which is designated the reference numeral 190, which is similar to the supporting element 40 of the support system 10, the difference being a polygonal top plate, designated the reference numeral 194, defining four radially protruding engagement flanges, one of which is designated the reference numeral 196, and larger reinforcement webs, one of which is designated the reference numeral 198 for supporting the engagement flange 196.
  • FIG. 4 also shows an embodiment of a supporting element, designated the reference numeral 200, which is similar to the supporting element 190, the difference being a different top plate, designated the reference numeral 202, defining three engagement flanges, one of which is designated the reference numeral 204, in a T-configuration
  • a further embodiment of a supporting element, designated the reference numeral 210 is shown in fig. 4 .
  • the supporting element 210 is similar to the supporting element 190, the difference being a different top plate, designated the reference numeral 212, which defines two engagement flanges, one of which is designated the reference numeral 214, the two engagement flange being opposite each other.
  • a further embodiment (not shown) of the supporting element comprises a top plate defining two engagement flanges perpendicular to each other.
  • the support system 160 is assembled by sliding the engagement flange 196 of the supporting element 190 endwise into the one of the ends of the panel stringer 162 and driving the supporting leg 60 through the supporting element 190 to engage with the base element 80 until the desired elevating of the panel stringer 162 is reached.
  • Further panel stringers 162 I-n and further supporting elements 190 1-n, 200 I-n or 210 I-n may be used to build a grid structure for supporting a floor.
  • the base element 80 may be omitted where the substrate which supports the is sufficiently hard to withstand the pressure generated by the supporting leg 60 on it.
  • the supporting elements 190, 200 and 210 of the support system 160 shown in fig. 4 may be used together with the panel stringer 12 of the support system 10 shown in fig. 1 .
  • a support structure may be assembled comprising the panel stringer 12 with the supporting element 40 provided within the panel stringer 12 for supporting the panel stringer 12 at a positing between the ends of the panel stringer 12 and the supporting element 160 provided at the ends of the panel stringer 12 to support the ends of the panel stringer 12.
  • the panel stringer 12 was made from 0.6 mm galvanized steel plate and rolled into the configuration shown having the following dimensions:
  • the supporting surface 14 had a width of 4.6 cm and a length of 90 cm with each aperture 28 having a diameter of 3 cm, there being in total 5 apertures being centred longitudinally at the distances 5 cm, 25 cm, 45 cm, 65 cm, and 85 cm from one end of the panel stringer along the supporting surface, each aperture 28 being further being centered at the perpendicular distance 2,3 cm from the first upper edge 20.
  • the sidewalls 30 and 32 each extended perpendicularly to the supporting surface and had a width of 0.7 cm.
  • the transition portions 34 and 36 each had a width of 0.5 cm and the angle between each transition portion 34, 36 and its adjoining sidewall was 30, 32 was approximately 135°.
  • the side portions 16 and 18 each had a width of 4 cm and were terminated by lower edges 24 and 26 which were rolled inwardly, the width of the rolled metal plate being 0.7 cm.
  • the supporting element 40 was made from nylon 6/6 and had the following dimensions: A square top plate 44 having a side 46 of 4.4 cm and centred on the top plate 44 a bore 48 having a diameter of 3.1 cm.
  • the body 42 of the supporting element 40 was cylindrical and had an outer diameter of 3.5 cm.
  • the top plate had a thickness of 0.3 cm and the body had a length of 4.2 cm, thus the total height of the supporting element was 4.5 cm.
  • the locking tongues 52 and 54 were each 1.3 cm long and 0.7 cm wid.
  • the protrusion on each locking tongue 52, 54 was 0.2 cm.
  • the interior screw thread had trapezoidal threads and had a pitch of 0.6 cm.
  • the supporting leg 60 was also made from nylon 6/6 to the following dimensions: A length of 12.5 cm, a major diameter of 3 cm and a minor diameter of 2.4 cm.
  • the bottom end 64 had a length of 3 cm and a diameter of 2 cm.
  • the screw thread 66 had trapezoidal threads and a pitch of 0.6 cm and a 0.1 cm deep and 0.3 cm broad notch every 90° of the thread.
  • the protrusion 70 extended 0.2 cm and was 0.3 cm broad and 0.1 cm long.
  • the tool part 72 comprised four indentations along the perimeter in the lower 0 3 cm of the bottom end 64, the indentations defining four tabs, three of which were 0 3 cm broad and 0.1 mm long and one which was 0.5 cm broad and 0.1 cm long, indentations matching the tabs being provided on the inner walls of the recess 74
  • the load bearing capacity of the above prototype was calculated using finite element analysis and gave the results shown in table 1, which depend on whether the panel stringer 12 was supported at every second (40 cm), every third (60) or every fourth (80cm) aperture 28.: Table 1: Distance between supporting elements Deflection at a load of 2000 N Maximum load at 1.35 mm deflection 80 cm 1.44 mm 1872 N 60 cm 0.66 mm 4104 N 40cm 0.44 mm 11321 N From the results it is clear that the support system according to the present invention has a high load bearing strength which further can be varied depending on the load bearing capacity required.
  • Protrusion 72 Tool part 72 I Second tool part 74 Recess 80 First base element 80 I Second base element 80 II . Third base element 82. First side 84. Recess 86. Pin 88. Slot 90 Second side 92. Fastening hole 92 I Second fasting hole 94. Screw 94 I Second screw 100.
  • Base supporting system 112 Supporting stringer 114 Base supporting surface 116.
  • panel stringer (second embodiment) 164. supporting surface (second embodiment) 166 First side portion (second embodiment) 168 Second side portion (second embodiment) 170 First upper edge (second embodiment) 172 Second upper edge (second embodiment) 174 First lower edge (second embodiment) 176. Second lower edge (second embodiment) 178. First sidewall (second embodiment) 180. Second sidewall (second embodiment) 182. First transition portion (second embodiment) 184. Second transition portion (second embodiment) 190 Supporting element (second embodiment) 192 Body (second embodiment) 194 Top plate (second embodiment) 196. Engagement flange (second embodiment) 198. Reinforcement web (second embodiment) 200. Supporting element (alternative embodiment) 202. Top plate (alternative embodiment) 204. Engagement flange (alternative embodiment) 210. Supporting element (alternative embodiment) 212. Top plate (alternative embodiment) 214 Engagement flange (alternative embodiment)

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
EP10151483A 2010-01-22 2010-01-22 Stützsystem für einen Fußboden Withdrawn EP2354371A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10151483A EP2354371A1 (de) 2010-01-22 2010-01-22 Stützsystem für einen Fußboden
EP11700678.3A EP2526242B1 (de) 2010-01-22 2011-01-21 Stützsystem für einen Fußboden
PCT/EP2011/050866 WO2011089239A1 (en) 2010-01-22 2011-01-21 Support system for a floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10151483A EP2354371A1 (de) 2010-01-22 2010-01-22 Stützsystem für einen Fußboden

Publications (1)

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EP2354371A1 true EP2354371A1 (de) 2011-08-10

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EP11700678.3A Not-in-force EP2526242B1 (de) 2010-01-22 2011-01-21 Stützsystem für einen Fußboden

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EP3315689A1 (de) * 2016-10-28 2018-05-02 Prästängen Sverige AB Anpassbares bodenstützsystem
EP3524753A1 (de) * 2018-02-07 2019-08-14 Matra Holz AG Unterkonstruktion zum stützen einer begehbaren fläche
EP3519649B1 (de) * 2016-09-28 2023-12-20 I Deck S.r.l. Nivellierbare verkleidungsstruktur mit schneller montage und demontage

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DE102016002845A1 (de) * 2016-03-10 2017-09-14 Formconsult Werkzeugbau Gmbh Bodenaufbausystem
SE1651413A1 (en) * 2016-10-28 2018-04-24 Praestaengen Sverige Ab A floor support structure
US11725413B2 (en) 2020-07-17 2023-08-15 Granite Industries, Inc. Elevated flooring system for clearspan tent

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US4893441A (en) 1985-06-05 1990-01-16 Iceco S.P.A. Load-bearing structure for raised floors
EP0353360A1 (de) 1988-08-04 1990-02-07 Chien-Teh Huang Kombination eines Sockels mit elektrischem Steckanschluss
US4982539A (en) 1988-10-05 1991-01-08 Mero-Werke Grid girder for raised floors
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EP1247922A2 (de) 2001-04-02 2002-10-09 Lindner Ag Bodenstütze mit einer Kopfplatte zum Abstützen eines Doppelbodenaufbaus sowie Doppelbodenaufbau
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FR2905395A1 (fr) 2006-09-01 2008-03-07 Simon Connect S L Perfectionnements apportes aux systemes d'installation de planchers techniques
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GB1035817A (en) 1962-05-07 1966-07-13 Denco Miller Ltd Floor construction
GB1140957A (en) 1966-07-11 1969-01-22 Denco Miller Ltd Cavity floors
US4893441A (en) 1985-06-05 1990-01-16 Iceco S.P.A. Load-bearing structure for raised floors
DE3913984A1 (de) 1988-05-02 1989-11-16 Gruenzweig & Hartmann Montage Stuetze fuer einen doppelboden
EP0353360A1 (de) 1988-08-04 1990-02-07 Chien-Teh Huang Kombination eines Sockels mit elektrischem Steckanschluss
US4982539A (en) 1988-10-05 1991-01-08 Mero-Werke Grid girder for raised floors
US5048242A (en) 1990-04-04 1991-09-17 C-Tec, Inc. Access floor system with hemmed edge panel
US5511760A (en) * 1993-11-02 1996-04-30 Kambara; Goro Post installable self locking machine leveling device
DE19607511A1 (de) * 1995-04-12 1996-10-17 Beat Cadosch Doppelboden
EP0874943B1 (de) * 1996-01-19 2004-04-07 Bygg-Och Miljöteknik Granab AB Stangensystem
EP0980944A1 (de) 1998-08-19 2000-02-23 Uniflair International S.A. Stützfuss zum Abstützen eines überhöhten Fussbodenaufbaus
EP1171678A1 (de) 1999-04-20 2002-01-16 Nivell System Aktiebolag Bodenkonstruktion mit trägern mit distanzschrauben zur höheneinstellung, sowie träger und distanzschrauben hierfür
WO2002057557A1 (en) * 2001-01-18 2002-07-25 Ward Building Components Limited A joist hanger
EP1247922A2 (de) 2001-04-02 2002-10-09 Lindner Ag Bodenstütze mit einer Kopfplatte zum Abstützen eines Doppelbodenaufbaus sowie Doppelbodenaufbau
DE20120006U1 (de) 2001-12-11 2003-04-17 Böh, Tobias, 80802 München Tragesystem für Doppelböden
EP1528181A1 (de) 2003-10-28 2005-05-04 Annie Verne Doppelboden
WO2006053813A1 (en) 2004-11-16 2006-05-26 Uniflair Industries S.P.A. Support structure for elevated floor assembly
EP1760222A2 (de) 2005-08-31 2007-03-07 Insca Internacional, S.L. Abmontierbarer Boden
FR2905395A1 (fr) 2006-09-01 2008-03-07 Simon Connect S L Perfectionnements apportes aux systemes d'installation de planchers techniques
WO2008055292A1 (en) 2006-11-06 2008-05-15 Weeks Group Pty Ltd A floor pier support

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3519649B1 (de) * 2016-09-28 2023-12-20 I Deck S.r.l. Nivellierbare verkleidungsstruktur mit schneller montage und demontage
EP3315689A1 (de) * 2016-10-28 2018-05-02 Prästängen Sverige AB Anpassbares bodenstützsystem
EP3524753A1 (de) * 2018-02-07 2019-08-14 Matra Holz AG Unterkonstruktion zum stützen einer begehbaren fläche
CH714627A1 (de) * 2018-02-07 2019-08-15 Matra Holz Ag Unterkonstruktion zum Stützen einer begehbaren Fläche.

Also Published As

Publication number Publication date
EP2526242A1 (de) 2012-11-28
EP2526242B1 (de) 2017-05-17
WO2011089239A1 (en) 2011-07-28

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