Patent Description:
In construction of buildings, it is suitable to position floors such that a spacing is formed between an interior floor structure and an underlying floor structure. This is due to many reasons, among which improved ventilation, the possibility of achieving a more horizontally even floor and improved insulation against sound and vibration are some reasons. Such a floor as often designed to be supported by a system of joists, wherein a joist may be provided with means for receiving e.g. an adjustment screw which in turn is fastened to an underlying floor structure. A floor system like this allows for localized adjustment of height so that any uneven characteristics of the underlying surface is not transferred to the interior floor which is intended for use.

Sometimes it is not possible to position the bars included in the floor support system directly in abutment against an underlying floor structure. This since many types of bars are damaged when resting on a moist support structure and in addition, they obstruct the fee circulation of air between the new and original surface. Furthermore, the underlying support structure is not as a rule completely even, or a certain inclination of the new interior floor surface may be desired.

Furthermore, in the case of multiple story buildings or apartments blocks, by separating the floor which e.g. is walked on and supports heavy objects, such as furniture, such a floor system allows solutions that aims at minimizing the propagation of harmful, disturbing or otherwise unwanted forces and dissipations of energy.

One known bar support system for floor constructions comprises bars and level adjustment screws. The bars being formed with through holes extending transversely in relation to the lengthwise extension of the bars. The level adjustment screws being adapted for attachment in the bars so as to project from the bars as load-carrying legs which legs rest against an underlying floor support structure. An end part of the level adjustment screw is adapted to be attached to the underlying floor surface and a opposite end part is provided with threads which is adapted to engage with internal threads of the sleeves attached to the rod. Further, the sleeves are manually applicable to the bars and the screws are attachable to the sleeves by thread engagement as they are being screwed into the sleeve, during which operation also the length by which the screws project from the bar is adjustable.

One drawback with the bar support system described above is that it does not provide any dampening insulation which aims at minimizing the propagation of harmful, disturbing and otherwise unwanted forces and dissipations of energy. Further floor support devices and floor support systems are known from <CIT>, <CIT> and <CIT>, the latter disclosing a floor support device according to the preamble of claim <NUM>.

Thus, there is a need for an improved floor support device and a floor support structure that is cost-efficient, easier to assemble and at the same time provide improved dampening properties.

An object of the present invention is to provide a floor support device and a floor support system which overcomes the above mentioned drawbacks.

According to the invention, this is achieved by a floor support device according to claim <NUM> and a floor support system according to claim <NUM>. Preferable features thereof are defined in the dependent claims.

According to the invention, there is provided a floor support device for use together with a floor joist. Said floor support device comprises a level adjustment device, a joist attachment device. Further, said level adjustment device comprises a level adjustment screw and an adjustment block. Said level adjustment screw comprises a first part intended to contact an underlying surface and a second part adapted to engage with said adjustment block. Further, said joist attachment device comprises at least one first engagement means and said adjustment block comprises at least one second engagement means, which first and second engagement means are adapted to engage with each other in an assembled state. Further, said joist attachment device comprises an engagement part adapted to be attached to a floor joist. Further, said floor support device comprises a dampening material sandwiched between said adjustment block and said joist attachment device.

According to one exemplary embodiment of the invention, said adjustment block of said floor support device comprises a through hole through which said level adjustment screw may extend, while the height of said floor support device may be adjusted.

According to one exemplary embodiment of the invention, said joist attachment device comprises an abutment portion from which said engagement part extend in an axial direction away from an underlying support surface, which said engagement part is adapted to be attached to a floor joist.

According to the invention, said first engagement means of said joist attachment device and said second engagement means of said adjustment block are complementary with each other. Said at least one first engagement means comprises a hook and said at least one second engagement means comprises an abutment such that said hook is snap-fitted with said abutment or said at least one first engagement means comprises an abutment and said at least one second engagement means comprises a hook such that said hook is snap-fitted with said abutment.

According to one exemplary embodiment of the invention, said dampening material may comprise a through hole, through which said level adjustment screw may extend, while the height of said floor support device may adjusted.

According to one exemplary embodiment of the invention, said adjustment block comprises a first abutment surface adapted to abut said dampening material, which said first abutment surface may comprise at least one protrusion which engage with a corresponding opening in said dampening material.

According to one exemplary embodiment of the invention, said at least one protrusion may be a flange extending around said through hole of said adjustment block, this to fix said dampening material at mounting of said floor support device.

According to one exemplary embodiment of the invention, said at least one protrusion may be a pin arranged on said abutment surface, which pin may engage with a corresponding opening in said dampening material.

According to one exemplary embodiment of the invention, said joist attachment device may comprise at least one protrusion which engage with a corresponding opening in said dampening material. Said protrusion is arranged to extend around said through hole of said joist attachment device and is arranged to engage with a corresponding opening in said dampening material.

According to one exemplary embodiment of the invention, a floor support system is provided which comprises at least two floor support devices. Further, said floor support system comprises at least one floor joist manufactured of a wood-based material or a square metal profile with a hollow cross section. Said floor joist comprises at least a hole, each of said engagement parts of one of said floor support devices is adapted to engage with said hole of said floor joist.

According to one exemplary embodiment of the invention, said at least one hole of said at least one floor joist comprises an abutment shoulder, which is adapted to engage with said engagement part.

In the description below, various directions may be given with reference to a floor support device assembled to support a floor support system. Example of such directions may be up, down, horizontal, vertical etc. It should be particularly pointed out that the directions for a floor support device according to the invention are with reference to a floor support device which is assembled together with a floor support system and provided on an underlying support surface ready for use.

In the following, a detailed description of a floor support device and a floor support system according to the invention is given with reference to <FIG>.

In <FIG> a first exemplary embodiment of a floor support system <NUM> and at least one floor support device <NUM> is disclosed. The floor support system <NUM> may be assembled on top of an underlying support surface <NUM>. The floor support system <NUM> is adjustable in height in relation to the underlying floor support surface <NUM>. The floor support system <NUM> comprises at least two floor support devices <NUM> which are adapted to be attached to at least one floor joist <NUM> and by means of which floor support devices <NUM> the floor support system <NUM> may be adjustable in height above the underlying support surface <NUM>. On top of the floor joists <NUM> of the floor support system <NUM> an external surface material <NUM> may be applied.

The floor joist <NUM> may be a square metal profile with a hollow cross section or a homogenous wooden joist. The use of joists manufactured of wood-based material reduces the climate impact of built environment by use of sustainable produced wood-based materials in place of other materials. Thus, less energy input us needed to manufacture wood products compared with alternative materials.

The floor joist <NUM> is provided with apertures <NUM> into which apertures <NUM> the floor support devices <NUM> may engage with the floor joist <NUM>. The apertures <NUM> may extend between two opposite planar external surfaces <NUM>, <NUM> of the floor joist <NUM>. Thus, the planar external surfaces of the floor joist <NUM> are substantially parallel with the underlying floor support surface <NUM>. Further, the aperture <NUM> may be a through hole. Further, each of the apertures <NUM> may be provided with an abutment shoulder <NUM> against which the floor support device <NUM> may be caused to engage. The abutment shoulder <NUM> may be configured in such a manner that an upper part <NUM> of the aperture <NUM> facing away from the underlying support structure <NUM> has a larger diameter than a lower portion <NUM> of the aperture <NUM>.

In the event the floor joist <NUM> is manufactured of a square metal profile with a hollow cross section, the aperture <NUM> may be provided on an external side surface which faces the underlying floor support surface <NUM>. Thus, the abutment shoulder is formed by the aperture <NUM> and an internal side surface parallel with the external side surface of the square metal profile. Further, the aperture may be a through hole extending through the two planar external surfaces of the metal floor joist <NUM>.

The floor support device <NUM> is adapted for use together with a floor joist <NUM>. The at least one floor support device <NUM> comprises a level adjustment device <NUM> and a joist attachment device <NUM>. Further, the level adjustment device <NUM> is attached to the joist attachment device <NUM>. Further, the joist attachment device <NUM> is attached to the floor joist <NUM> in a manner which is to be described in closer detail in the description below.

The level adjustment device <NUM> comprises a level adjustment screw <NUM> and an adjustment block <NUM>. The level adjustment screw <NUM> comprises external threads <NUM> which are adapted to engage with internal threads <NUM> of the adjustment block <NUM>. The external threads <NUM> may be provided at least in an upper end of the level adjustment screw <NUM> facing the adjustment block <NUM>, allowing the level adjustment screw <NUM> to be screwed into the adjustment block <NUM>. Preferably, the external threads <NUM> are provided along the full length of the level adjustment screw <NUM> to allow maximal height adjustment for the floor support system <NUM> in the event the height fluctuations of the underlying support surface <NUM> are large, when comparing height difference between different locations of the underlying floor support surface.

The level adjustment screw <NUM> is hollow and at its end which is intended to be in contact with an underlying floor support surface <NUM> the level adjustment screw <NUM> may be provided with a hole <NUM> for reception therein of a fastener such as screw or nail, by means of which it may be attached to the underlying support structure <NUM>. The hole or cavity in the level adjustment screw <NUM> may have a hexagonal cross-sectional shape, that is suitable to tool engagement. For example, the cavity may have a hexagonal cross-sectional shape allowing the screw to be turned by means of an Allen wrench. In this manner both the attachment of the level adjustment screw <NUM> by means of the fasteners and the adjustment of the screws <NUM> by means of e. g an Allen wrench may be performed from the upper side of the floor joist <NUM>, which in an assembled state is turned away from the underlying support structure <NUM>.

Further, the joist attachment device <NUM> comprises an abutment portion <NUM> against which the floor joist <NUM> is arranged to abut when in an assembled state. The abutment portion <NUM> comprises a first surface <NUM> and a second surface <NUM>. The first surface <NUM> is arranged to face away from the underlying support surface <NUM> and the second surface <NUM> is arranged to face the underlying support surface <NUM> in an assembled state. The abutment portion <NUM> may comprise one or more first alignment edges <NUM> which may be provided to align and maintain the floor joist <NUM> on the joist attachment device <NUM>. The first alignment edges <NUM> are arranged to protrude in a direction towards the floor joist <NUM>. Further, the first alignment edges <NUM> are arranged to extend along the edges of the abutment portion <NUM> which edges extend in the same extension direction as the floor joist <NUM>.

Furhter, the abutment portion may also comprise one or more second alignment edges <NUM> which may be provided to align and maintain a damping material <NUM> in abutment with the joist attachment device <NUM>. The second alignment edges <NUM> are arranged to protrude in a direction towards the underlying floor support surface <NUM>. Further, the first alignment edges <NUM> are arranged to extend along the edges of the abutment portion <NUM> which edges extend in the same extension direction as the floor joist <NUM>.

The joist attachment device <NUM> comprises an engagement part <NUM> adapted to be attached to the floor joist <NUM>. The joist attachment device <NUM> may be centrally provided on the abutment portion <NUM>, such that the abutment portion <NUM> extend outside the engagement part <NUM>, whereupon the floor joist <NUM> may rest in an assembled state. The engagement part <NUM> is elongated and provided with at least one locking protrusion <NUM> intended to engage with the abutment shoulder <NUM> formed in the aperture <NUM> of the floor joist <NUM>. Thus, the locking protrusion <NUM> protrude from an external surface <NUM> of the engagement part <NUM>.

Further, the engagement part <NUM> comprises at least one longitudinal slit <NUM> and is manufactured of a material which may be bent resiliently somewhat outwards and/or inwards. Owing to this arrangement the engagement part <NUM> may be forced into a hole <NUM> in a floor joist <NUM> from the underside thereof, whereby the at least one locking protrusion <NUM> of the engagement part <NUM> is forced somewhat towards the center of the aperture <NUM>, until it's at least one locking protrusion <NUM> move past the abutment shoulder <NUM> and snap outwards to lockingly secure the joist attachment device <NUM>. This fastening arrangement is advantageous since on the one hand it is rapid and simple and on it may be locked and if needed be detached completely manually without the use of tools or with the aid of simple tools only.

The joist attachment device <NUM> comprises first engagement means <NUM>, which is adapted to engage with second engagement means <NUM> provided on the adjustment block <NUM>. The first engagement means <NUM> and the second engagement means <NUM> may be described as a pair of engagement means. The first engagement means <NUM> extend from the abutment portion <NUM> in a direction towards an underlying support surface <NUM>. In the first exemplary embodiment, a first pair of the engagement means is arranged on one first side <NUM> of the floor support device <NUM> and a second pair of the first engagement means <NUM> and the second engagement means <NUM> is arranged on an opposite second side <NUM> of the floor support device <NUM>.

The second engagement means <NUM> of the adjustment block <NUM> is complementary shaped to the first engagement means <NUM>, shown in <FIG>. Thus, in the case the first engagement means <NUM> is hook-shaped then the second engagement means <NUM> is designed as an abutment <NUM>, around which the hook-shaped means may engage. With this configuration, the first engagement means <NUM> and the second engagement <NUM> means are snap-fitted engaged with each other. In all of the aspects and exemplary embodiments described herein, snap-fitted is to be understood as bringing two elements into direct physical contact with each other whereupon they are arranged in a latched position so that the movement of one element at least partially induces movement in the other element, or that movement of one element in at least one direction is restricted by the other element.

In the first exemplary embodiment the second engagement abutment <NUM> is configured as an abutment <NUM>, which is engaged by the hook-shaped first engagement means <NUM>. Thus, the first engagement means <NUM> may be snap-fitted to the second engagement means <NUM>. Thus, the first engagement means <NUM> is elongated and extend from the abutment portion <NUM> towards the underlying support surface. An end of the first engagement means <NUM> is freely arranged as a leg and provided with the hook-shaped means in its freely arranged end. The hook-shaped means is provided with a substantially flat engagement surface <NUM> which is adapted to engage with the second engagement means <NUM>. The flat engagement surface <NUM> is arranged to face the adjustment block <NUM>. Further, the flat engagement surface <NUM> may be arranged parallel in relation to an underlying floor support surface <NUM>.

An exterior surface of the adjustment block <NUM> may be provided with the second engagement means <NUM>. The second engagement means <NUM> is arranged as an abutment surface <NUM> which is substantially parallel to the underlying support surface. In an assembled state the engagement surface <NUM> and the abutment surface <NUM> is substantially parallel with each other. Further, the flat engagement surface <NUM> may be arranged parallel in relation to the abutment surface <NUM>.

Further, the second engagement means <NUM> may be surrounded by protective edges <NUM>. The protective edges <NUM> are adapted to protect the first and second engagement means <NUM>, <NUM> in the event the adjustment block <NUM>, the dampening material <NUM> and the joist attachment device <NUM> are assembled before the floor support device are delivered to the construction site where the floor support devices <NUM> are to be assembled with the floor joist <NUM> and the level adjustment screw <NUM>. Accordingly, the protective edges <NUM> protect the first and second engagement means <NUM>, <NUM> from damages in any event the floor support devices <NUM> are treated cautiously.

The engagement surface <NUM> of the first engagement means <NUM> and the abutment surface <NUM> of the second engagement means <NUM> may be arranged in other directions than parallel in relation to the underlying support surface, just as long as the inclination of the abutment surface <NUM> and the flat engagement surface <NUM> are substantially the same and provide a locking action.

Further, the floor support device <NUM> comprises the dampening material <NUM> which is sandwiched between the adjustment block <NUM> and the joist attachment device <NUM>. The dampening material <NUM> is provided in order to provide resiliency and/or sound reduction in the floor. In an assembled state, the dampening material <NUM> is provided to abut the second surface <NUM> of the joist attachment device <NUM> and a first abutment surface <NUM> of the adjustment block <NUM>. The first abutment surface <NUM> is arranged to face away from the underlying support surface, in an assembled state. An external boundary edge of the dampening material <NUM> may be shaped as the geometrical shape of the abutment surfaces of the adjustment block <NUM> and the joist attachment device <NUM>. Preferably, the external boundary edge of the dampening material <NUM> is square shaped or shaped as a rectangle.

To allow compression of the dampening material <NUM>, the first engagement means <NUM> and second engagement means <NUM> are so designed, that the second engagement means <NUM> is allowed to slide out of engagement with the first engagement means <NUM> when the dampening material <NUM> is compressed e.g. when a high surface load is applied to a certain region of the external floor surface. Thus, the dampening material <NUM> is compressed in a direction which is substantially perpendicular to the underlying floor support surface <NUM>. Thus, when the first engagement means <NUM> and the second engagement means <NUM> are in engagement with each other, the dampening material <NUM> is expanded to its maximum thickness. When a surface load is applied to the external floor surface the dampening material <NUM> is compressed to a certain extent. The dampening material <NUM> may comprise a through hole <NUM>, through which said level adjustment screw <NUM> may extend, while the height of said floor support device <NUM> may be adjusted accordingly.

The first abutment surface <NUM> of the adjustment block <NUM> may comprise at least one protrusion <NUM> which engage with a corresponding opening or hole <NUM> in the dampening material <NUM>. The at least one protrusion <NUM> may be arranged as a protruding edge around the through hole <NUM> of the adjustment block <NUM>. Thus, the external diameter of the protrusion <NUM> is equal to or slightly smaller than the internal diameter of the through hole <NUM> within the dampening material <NUM>. Further, the second surface <NUM> of the joist attachment device <NUM> may also be provided with at least one protrusion <NUM> which engage with a corresponding opening or hole <NUM> in the dampening material <NUM>. The protrusion <NUM> may be arranged as a protruding edge around the through hole <NUM> of the joist attachment device <NUM>. Thus, the external diameter of the protrusion <NUM> is equal to or slightly smaller than the internal diameter of the through hole <NUM> within the dampening material <NUM>. An advantage with the protrusions <NUM>, <NUM> is that the dampening material <NUM> is held in place during assembly and use of the floor support device <NUM>.

Depending on the dampening degree desired, the thickness of the dampening material <NUM> may be varied, thus the length of the first engagement means <NUM>, and the position of the second engagement means <NUM> may be varied accordingly.

The adjustment block <NUM>, the dampening material <NUM> and the joist attachment device <NUM> are so designed such that the level adjustment screw <NUM> may be freely movable within these such that the level adjustment may be adjusted to the desired level. Thus, the adjustment block <NUM>, the dampening material <NUM> and the joist attachment device <NUM> may be provided or arranged such that the level adjustment screw <NUM> may be levelled within these.

At designing of the geometrical shape of the dampening material, it is desirable that the material waste is limited to a minimum as the dampening material is costly to purchase from manufacturers. Thus, the less material needed to be cut away to obtain the final geometrical shape, the cheaper manufacture of the floor support device and floor support system.

In one exemplary embodiment, the at least one first engagement means <NUM> may comprise an abutment provided on the joist attachment device <NUM> and said at least one second engagement means <NUM> may comprise a hook provided on the adjustment block <NUM> such that said hook is snap-fitted with said abutment.

In <FIG> a second exemplary embodiment of the floor support device <NUM> is described. As the first exemplary embodiment, the floor support device according to the second exemplary embodiment comprises a level adjustment screw <NUM>, an adjustment block <NUM>, a damping material <NUM> and a joist attachment device <NUM>. The floor support device <NUM> according to the second exemplary embodiment comprises at least a pair of engagement means. In the second exemplary embodiment the pair of engagement means comprises a first engagement means <NUM> and a second engagement means <NUM>. The first engagement means <NUM> may be integrated with an abutment portion <NUM> of the joist attachment device <NUM>. In this exemplary embodiment the abutment portion <NUM> may be designed with first and second flanges <NUM>, <NUM> which extend from the abutment portion <NUM>, and thus constitute a U-shape which is upside down. The first and second flanges <NUM>, <NUM> may be provided with openings <NUM>, <NUM> which provide abutment for the second engagement means <NUM>.

The second engagement means <NUM> are provided on the sides of the adjustment block <NUM> and are designed as protrusions which extend from the sides. Thus, the second engagement means <NUM> protrude and engage with the openings <NUM>, <NUM>, from the inside of the first and second flanges <NUM>, <NUM>. Hence, the protrusions may be resilient and be bent somewhat outwards and/or inwards to allow a snap-fit upon assembly or disassembly.

In <FIG> a third exemplary embodiment of the floor support device <NUM> is described. As the first exemplary embodiment, the floor support device <NUM> according to the third exemplary embodiment comprises a level adjustment screw <NUM>, an adjustment block <NUM>, a damping material <NUM> and a joist attachment device <NUM>.

Within this third exemplary embodiment the adjustment block <NUM> and the damping material <NUM> are slightly different designed compared to the first exemplary embodiment. Within the third exemplary embodiment, the adjustment block <NUM> is provided with at least two protrusions <NUM>, <NUM>, which are provided on the first abutment surface <NUM> of the adjustment block <NUM>. The dampening material <NUM> may be designed to constitute two pieces, and each piece comprises at least one aperture <NUM>, <NUM> each, which is arranged to engage with the protrusion <NUM>, <NUM> of the adjustment block <NUM>. The at least two protrusions <NUM>, <NUM> and the apertures <NUM>, <NUM> in the dampening material <NUM> secure the dampening material <NUM> in place during assembly and use of the floor support device <NUM>.

To keep the damping material <NUM> in place during assembly and use, the abutment portion <NUM> of a first abutment surface of the adjustment block <NUM> may be provided with one or more alignment edges <NUM> which may be provided to align and maintain the dampening material <NUM> in position on the adjustment block <NUM> during use and assembly. The alignment edges <NUM> are arranged to protrude in a direction towards the floor joist. Further, the alignment edges <NUM> may extend partially or along the full length of the edges of the abutment portion <NUM>.

In <FIG> a forth exemplary embodiment of the floor support device <NUM> is described. As the first exemplary embodiment, the floor support device according to the forth exemplary embodiment comprises a level adjustment screw <NUM>, an adjustment block <NUM>, a damping material <NUM> and a joist attachment device <NUM>.

Within this forth exemplary embodiment the joist attachment device <NUM> comprises first engagement means <NUM>, which is adapted to engage with second engagement means <NUM> provided on the adjustment block <NUM>. The first engagement means <NUM> and the second engagement means <NUM> may be described as a pair of engagement means. The first engagement means <NUM> extend from the abutment portion <NUM> in a direction towards an underlying support surface. In the fourth exemplary embodiment, two pairs of the engagement means are arranged on one first side <NUM> of the floor support device <NUM> and two second pairs of the engagement means are arranged on an opposite second side <NUM> of the floor support device <NUM>.

Thus, the first engagement means <NUM> may be hook-shaped and the second engagement means <NUM> may be shaped as abutments. The abutments may be provided on a side surface of the adjustment block <NUM> or the lower edges <NUM> of the adjustment block <NUM> may act as abutment portions.

Thus, within this fourth exemplary embodiment the joist attachment device <NUM> and the adjustment block <NUM> may comprise four first engagement means <NUM> and four second engagement means <NUM>. Whereof, two of the first engagement means <NUM> and two of the second engagement means <NUM> are provided on the same side <NUM> of the joist attachment device <NUM>, and two of the first engagement means <NUM> and two of the second engagement means <NUM> are provided on the opposite side <NUM> of the joist attachment device <NUM>.

Thus, in the fourth exemplary embodiment, two pairs of engagement means are arranged on one first side <NUM> of the floor support device <NUM> and two second pairs of engagement means are arranged on an opposite second side <NUM> of the floor support device <NUM>.

In <FIG> a fifth exemplary embodiment of the floor support device <NUM> is described. As the first exemplary embodiment, the floor support device <NUM> according to the fifth exemplary embodiment comprises a level adjustment screw <NUM>, an adjustment block <NUM>, a damping material <NUM> and a joist attachment device <NUM>.

In the fifth exemplary embodiment the joist attachment device <NUM> and the adjustment block <NUM> may comprise four pairs of engagement means, and each pair of engagement means comprises a first engagement means <NUM> and a second engagement means <NUM>. Whereof, the first pair of engagement means is provided on one first side <NUM> of the joist attachment device <NUM>, and a second pair of engagement means is provided on a second opposite side <NUM> of the joist attachment device <NUM>, seen in relation to the first side <NUM> of the joist attachment device413. Further, a third pair of engagement means is provided on a third side <NUM> of the joist attachment device <NUM>, and a forth pair of engagement means is provided on a forth opposite side <NUM> of the joist attachment device <NUM>, this in relation to the third side <NUM> of the joist attachment device <NUM>.

In other words, in the fifth exemplary embodiment, one pair of engagement means is arranged on a first side <NUM> of the joist attachment device <NUM> and a second pair of engagement are arranged on an opposite second side <NUM> of the joist support device <NUM>. Further one pair of engagement means is arranged on a third side <NUM> of the joist engagement device <NUM> and one pair of engagement means is arranged on a forth opposite side <NUM> of the joist engagement device <NUM>.

Upon mounting of the floor support device <NUM>; <NUM>, <NUM>; <NUM>; <NUM>; the joist attachment device <NUM>; <NUM>; <NUM>, <NUM>; <NUM> is attached from the underside of the floor joist <NUM>. Thus, the engagement part <NUM> is introduced into the aperture <NUM> and the at least one locking protrusion <NUM> is arranged to engage the abutment portion <NUM>. The dampening material <NUM>; <NUM>; <NUM>; <NUM>; <NUM> is arranged upon the adjustment block <NUM>; <NUM>; <NUM>; <NUM>; <NUM> and may be held in place by means of the protrusion(s) <NUM>; <NUM>; <NUM>,<NUM>, where after the adjustment block <NUM>; <NUM>; <NUM>; <NUM>; <NUM> together with the dampening material <NUM>; <NUM>; <NUM>; <NUM>; <NUM> is snap-fitted onto the joist attachment device <NUM>; <NUM>; <NUM>; <NUM>; <NUM>. Further, the level adjustment screw <NUM>; <NUM>; <NUM>; <NUM>; <NUM> is introduced into the adjustment block <NUM>; <NUM>; <NUM>; <NUM>; <NUM>, and the external threads <NUM> of the level adjustment screw <NUM>; <NUM>; <NUM>; <NUM>; <NUM> mesh with the internal treads <NUM> of the adjustment block <NUM>;<NUM>; <NUM>; <NUM>; <NUM> such that a height adjustment of the floor support device <NUM>; <NUM>; <NUM>; <NUM>; <NUM> may be performed when the level adjustment screw <NUM> is turned accordingly. The level adjustment screw <NUM> may be turned by means of a suitable tool, which tool may easily be applied from above to engage with an internal side of the level adjustment screw <NUM>. The above mounting steps may be performed in any consecutive order.

The above described exemplary embodiments are possible to combine in any way in general terms. Again, individual features of the various exemplary embodiments may be combined or exchanged unless such combination or exchange is clearly contradictory to the overall function of the device.

While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive; the invention is not limited to the disclosed exemplary embodiments.

Other variations to the disclosed exemplary embodiments can be understood and effected by those skilled in the art in practicing the claimed invention within the scope of the appended claims.

Claim 1:
A floor support device (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) for use together with a floor joist, said floor support device comprises
a level adjustment device (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>),
a joist attachment device (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>),
said level adjustment device (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) comprises,
a level adjustment screw (<NUM>),
an adjustment block (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>),
said level adjustment screw (<NUM>) comprises a first part intended to contact an underlying surface (<NUM>) and a second part adapted to engage with said adjustment block (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>), further said joist attachment device (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) comprises at least one first engagement means (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) and said adjustment block (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) comprises at least one second engagement means (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>), which first and second engagement means (<NUM>, <NUM>; <NUM>, <NUM>; <NUM>, <NUM>; <NUM>, <NUM>; <NUM>, <NUM>) are complementary with each other and are adapted to engage with each other in an assembled state,
further said joist attachment device (<NUM>; <NUM>, <NUM>; <NUM>; <NUM>) comprises an engagement part (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) adapted to be attached to a floor joist (<NUM>), and
said floor support device (<NUM>;<NUM>; <NUM>; <NUM>; <NUM>) further comprises a dampening material (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) sandwiched between said adjustment block (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) and said joist attachment device (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>),
characterized in that
said at least one first engagement means (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) comprises a hook and said at least one second engagement means (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) comprises an abutment (<NUM>) such that said hook is snap-fitted with said abutment (<NUM>),
or that said at least one first engagement means (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) comprises an abutment (<NUM>) and said at least one second engagement means (<NUM>; <NUM>; <NUM>; <NUM>; <NUM>) comprises a hook such that said hook can be snap-fitted with said abutment.