Support and levelling device

Abstract

A levelling structure for levelling a structure having supports for secondary support on fixed footings. A coupling mechanism extends between an access point on the structure and the footings. Adjustment of the coupling member from the structure alters the elevation of the structure and supports together towards or away from the footings. By providing the adjustment from the structure itself, the requirement for elevational adjustment beneath the structure is avoided as well as adjustment against the opposition of the load.

Claims

1. A levelling apparatus for levelling a structure having a top surface with a plurality of openings accessible from said top surface, comprising: a retaining member comprising a plate having a topside and underside, said topside having a beam retaining surface for retaining a beam arrangement, said retaining member having a threaded nut fixedly secured to said underside thereof free of said beam arrangement and said beam retaining surface, said beam arrangement having a top surface and a bottom surface, said beam arrangement for supporting said structure, said beam arrangement having a passageway therethrough extending from said top surface to said bottom surface, said structure resting upon said beam arrangement; an adjustable threaded coupling member having a first end and a second end spaced therefrom, said second end comprising a free end with a nonthreaded segment adapted for contact with a surface on which it rests, said threaded coupling member connected between said threaded nut of said retaining member through said passageway of said beam arrangement to an opening of said openings in said top surface of said structure and operable from said top surface of said structure at said first end of said threaded coupling Member for adjusting the elevation of said beam arrangement by movement of said retaining member on said threaded member relative to said surface upon which said nonthreaded second end is in contact absent vertical movement of said threaded coupling member.

2. The apparatus as set forth in claim 1, wherein said apparatus further includes a supplemental support for positioning between said free end of said adjustable threaded coupling member and said surface.

3. The apparatus as set forth in claim 2, wherein said supplemental support comprises a plate having a seating for seating said free end.

4. The apparatus as set forth in claim 1, wherein said retaining member is fixedly secured to said beam arrangement.

5. The apparatus as set forth in claim 1, wherein said structure comprises a platform.

6. The apparatus as set forth in claim 1, wherein said structure comprises a building.

7. A method for levelling a deck platform having a top surface with a plurality of apertures through said top surface, comprising: providing a beam arrangement upon which said deck platform rests, said beam arrangement having a top surface and a bottom surface, said beam arrangement for supporting said platform, said beam arrangement having a passageway therethrough extending from said top surface to said bottom surface; providing a retaining member comprising a plate having a topside and underside, said topside having a beam retaining surface for retaining said beam arrangement, said retaining member having a threaded nut fixedly secured to said underside thereof free of said beam arrangement and said beam retaining surface; providing an adjustable threaded coupling member having a first end and a second end spaced therefrom, said second end comprising a free end with a nonthreaded segment adapted for contact with a surface on which it rests, said threaded coupling member connected between said threaded nut of said retaining member through said passageway of said beam arrangement to an opening of said openings in said top surface of said platform and operable from said top surface of said platform at said first end of said threaded coupling member for adjusting the elevation of said beam arrangement by movement of said retaining member on said threaded member relative to said surface upon which said nonthreaded second end is in contact absent vertical movement of said threaded coupling member; adjusting said adjustable threaded coupling member from said top surface of said platform through rotation of said rotatable coupling member to adjust the elevation of said beam arrangement by movement of said retaining member on said threaded coupling member relative to said surface upon which said free end of said adjustable threaded coupling member is positioned.

8. The method as set forth in claim 7, further including the step of providing a supplemental support as a surface upon which said free end of said adjustable threaded coupling member is seated.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic illustration of a prior art arrangement;

(2) FIG. 2 is a perspective view of one embodiment of the present invention;

(3) FIG. 3 is a bottom isolated view of the embodiment of FIG. 2;

(4) FIG. 4 is a schematic illustration of the arrangement of FIGS. 2 and 3 in a use position;

(5) FIG. 5 is a schematic illustration of the implementation of the device with a building structure;

(6) FIG. 6 is a cross section of an alternate embodiment of the present invention;

(7) FIG. 7 is a cross section of an alternate embodiment of the present invention;

(8) FIG. 8 is a perspective view of an alternate embodiment of the present invention; and

(9) FIG. 9 is a cross section of an alternate embodiment of the present invention.

(10) Similar numerals used in the Figures denote similar elements.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(11) Referring now to FIG. 1, shown is a prior art arrangement globally referenced by numeral 10 for supporting a structure 12, shown in the example as a deck platform 14. A support beam 16 underlies the platform 14.

(12) For elevation and support, structure 18 is provided for positioning on the ground surface, G. The structure 18 provides a base or footing 20, typically a cement preform, into which is fixed a tube 22 having a threaded nut 24 connected thereto. Nut 24 threadably receives a threaded rod 26 having a U shaped bracket 28 connected thereto. The bracket 28 receives a section of lumber 30 therein; the lumber section 30 connects and supports support beam 16.

(13) Adjustment of the beam 16 is achieved by turning nut 24 to urge the rod 26 upwardly. The adjustment of nut 24 must be done under the full load the arrangement is supporting.

(14) Arrangements of this type are well known in the prior art and examples have been identified in the background herein.

(15) From a support point of view, these arrangements are dangerous in that integrity is limited by the fixture of the tube 22 within the cement footing 20, quality of connection between the lumber section 30 with the bracket 28 and beam 16 and the physical ability of a user to adjust the nut 24 under significant load conditions. All of this is further exacerbated by the fact that adjustment requires a user to be directly adjacent all of the potential failure areas. This is a potentially injurious situation where a user must crawl under the structure 12 to perform a levelling adjustment.

(16) FIGS. 2 and 3 illustrate a first embodiment of the invention which overcomes the limitations of the existing arrangements in the prior art. In the example, a retaining member 40 is provided for retaining a support (not shown) discussed herein after with respect to the advancing Figures. Retaining member 40, in this example, comprises a unitary body having a base 42 and spaced apart walls 44 and 46 integral therewith. Each of the walls 44 and 46 include apertures 48 for receiving fasteners (not shown).

(17) Disposed centrally through base 42 is a threaded rod 50 extending upwardly through the base 42 in a spaced apart relation with walls 46 and 48. The threaded rod 50 terminates at a free end with a nut 52.

(18) The underside 54 of base 42 (shown in FIG. 3) provides a nut 56 which is fixedly secured to underside 54. Threaded rod 50 is received within nut 56. The opposed end of the threaded rod 50 includes a non threaded segment 58. In use, discussed in the advancing Figures, a push off plate 60 having an aperture 62 receives segment 58. Apertures 64 are also provided to receive fasteners (not shown).

(19) Turning now to FIGS. 4 and 5, shown is an example of the arrangement in use. A footing arrangement comprising 20 and 20′ is provided. The top of footing 20 includes the push off plate 60 fastened to the footing 20 via the apertures 64. Segment 58 seats in aperture 62 as referenced in FIG. 3.

(20) A beam structure 16 is retained within the retaining member 40 and fastened thereto via apertures 48. Beam structure 16 includes a passage 66 therethrough to receive threaded rod 50. Rod 50 is rotatable within passage 66 and may extend partially above the top of the beam structure 16.

(21) As will be evident from FIGS. 4 and 5, the beam structure 16 normally rests on the support 20 and in particular, push off plate 60, when included. The plate 60 may not be necessary in ail scenarios and will depend on the type of material used for the footing 20. In the example, the structure 14 being supported is a deck platform which will be referenced with numeral 14 for purposes of explanation only. The structure 14 overlies beams 16 and includes access points 68 extending therethrough which register with the passages 66 in the beams 16. In this manner, access to the nut 52 of rod 50 is accessible for rotation from the top of the structure 14. There is full access for a user (not shown) to rotate the nut with a suitable device from the top surface of the structure 14 without having to access the arrangement anywhere under the structure 14, beams 16 or footings 20. Conveniently, the nut 52 may be adjusted using, for example, a socket driver. Sealing members 70 may be used to temporarily seal the access points 68.

(22) As is schematically illustrated in FIG. 5 and with further reference to FIG. 4, rotation of the nut 52 from the top surface of the structure 14 alters the elevation of the beam structure 16 relative to the footing 20 by pushing away from the footing from atop the structure 14. With the provision of the push off plate 60 and the seating arrangement of segment 58 in aperture 62, an efficient arrangement is realized. The coupling arrangement, i.e., the retaining member 40, rod 50 and nut 56 is particularly well suited to accommodating significant loads. For example, for the threaded rod of a diameter of ⅞″, the load capability is in excess of 7000 kg. With the provision of the load being pushed down from the top, a mechanical advantage is provided.

(23) This makes adjustment from the top nearly effortless as is evinced by the fact that a simple socket driver can be used to adjust the level of a significant load.

(24) With the provision of multiple arrangements over the structure 14, the levelling can be done at a plurality of points to effectively fine tune the levelling of the structure 14.

(25) As will be appreciated, the arrangement can be employed in a number of different embodiments and can be used for levelling building structures, furniture, appliances among a host of other objects. To this end, FIG. 6 illustrates a further embodiment. In this arrangement, the retaining member 40 may include only the base 42 having the nut 56 similar to FIG. 2. This is useful for adjusting the elevation of lighter loads, where the retaining base 42 retains the structure (not shown) to be supported.

(26) FIG. 7 illustrates an alternative embodiment where base 42 includes a single wall support 72 extending there from. In this embodiment, a second nut 74 may be fixedly secured to the topside of the base 42 to cooperate with nut 56 for enhanced strength. In this example, wall 72 may be secured to a surface to be supported and levelled (not shown) or may be integrated into the body of, for example, an appliance, generally represented by numeral 76. In the case of an appliance being supported, adjustment can be done in an isolated manner from the underside. As is known, adjustment for existing appliance arrangements involves rotation of the footing which is under load conditions and thus moves the load upwardly to achieve levelling. In the embodiment of FIG. 7, adjustment is achieved by pushing down on the load from an area completely spaced from the footing.

(27) FIG. 8 illustrates yet another embodiment. In this example, walls 44 and 46 extend to receive the beam 16 and at least a part of the footing 20. A cross brace 78 extends between walls 44 and 46 and mounts nut 56 centrally there between. This arrangement adds additional lateral reinforcement by coupling the retaining member to a greater extent between the footing 20 and beam 16.

(28) FIG. 9 illustrates yet another embodiment of the arrangement. In this example, the coupling member is relocated from generally within the beam 16 and between walls 44 and 46, to a location outside of the beam 16 and more particularly at the sides thereof. In this arrangement retaining members 80 and 82 are fixedly secured to each side of the beam 16 and are each thread ably received within a respective threaded rod 50. Each rod 50 passes through retaining member 42. As with the previous embodiments, adjustment of the nut 52, pushes the beam 16 away from the footing 20 and in this example, away from the retaining member 42.

(29) As has been set forth, the embodiments allow for the alteration of the elevation of a supported structure by incorporating a coupling structure which may be disposed generally within a supporting structure or alongside of same. Such arrangements allow for adjustment from the top and directly adjacent the top of a structure being supported to allow for the significantly reduced effort in adjusting a load and while allowing this to be performed using the load for a mechanical advantage out of a potentially dangerous situation attributed to making adjustments under the load.