US3380217A - Raised floor plate - Google Patents

Raised floor plate Download PDF

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Publication number
US3380217A
US3380217A US472269A US47226965A US3380217A US 3380217 A US3380217 A US 3380217A US 472269 A US472269 A US 472269A US 47226965 A US47226965 A US 47226965A US 3380217 A US3380217 A US 3380217A
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US
United States
Prior art keywords
sheet
plate
underbody
floor
floor plate
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.)
Expired - Lifetime
Application number
US472269A
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English (en)
Inventor
John S Mikus
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.)
NL Industries Inc
Original Assignee
Nat Lead Co
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 Nat Lead Co filed Critical Nat Lead Co
Priority to US472269A priority Critical patent/US3380217A/en
Priority to DE19661683318 priority patent/DE1683318A1/de
Priority to NL6608888A priority patent/NL6608888A/xx
Priority to BE684139D priority patent/BE684139A/xx
Priority to CH1026466A priority patent/CH447568A/de
Application granted granted Critical
Publication of US3380217A publication Critical patent/US3380217A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/024—Sectional false floors, e.g. computer floors
    • E04F15/02405—Floor panels

Definitions

  • the invention discloses a stamped floor plate for raised floors comprising a relatively heavy upper plate and a reinforcing body including webs afiixed to and extending downwardly from the upper plate to a lower plate from which the webs are formed.
  • a peripheral web is formed from the lower plate and is welded to the underside of the upper plate.
  • the upper plate extends outwardly to receive a plastic lip which forms a recess into which a decorative finishing material for the floor is inserted.
  • This invention relates to a raised floor of the type that is now used extensively in rooms housing computers and similar installations in which a large number of interunit cables are required. Such cabling is frequently changed around as the installation is changed and the raised floor plates are taken up for this purpose to expose the sub-floor cable space.
  • corner supported plates comprising die cast bodies having depending reinforcing ribs.
  • Such plates are highly satisfactory from a structural standpoint and can be made very strong. High unit loading can be imposed with only very minor deflections so that heavy computers can be rolled from place to place without damaging the fioor.
  • the die cast plates are costly, however, and are used primarily where the installation is expected to be reasonably permanent and where the cost of the floor is of minor importance.
  • the present invention is directed primarily to a less expensive floor plate made from sheet steel.
  • the primary object of the invention is to provide a drawn or stamped underbody in which a beam reinforcement is developed in each mutually perpendicular direction so that the resulting plate is strong and capable of accepting high unit loadings of, for example, 1000 pounds on any one square inch.
  • the stamped underbody is welded or otherwise afiixed to a continuous fiat upper sheet that overlaps the periphery of the underbody on all four sides.
  • FIGURE 1 is a fragmentary plan view of an underbody sheet in an intermediate stage of fabrication
  • FIG. 2 is a fragmentary perspective view of an underbody sheet drawn to its final configuration
  • FIG. 3 is a top plan view of an elevated floor with parts broken away to expose the underbody sheet.
  • FIG. 4 is an enlarged section taken on line 44 of FIG. 3.
  • FIGURE 1 of the drawings shows a portion of a flat sheet of metal 10, usually steel, that has been blanked out to a suitable rectangular configuration and on which certain preliminary operations have been performed.
  • Each corner of the plate has been cut out, as at 11, so that the perimeter can be bent first at right angles to the plane of the sheet and then into a parallel plane to form a fiat perimetrical rim 12 without overlapping at the corners.
  • the flat rim is reinforced by the downwardly extending formed portion 13.
  • the sheet shown in FIG. 1 has been pierced at spaced intervals at 14 in areas that will subsequently be drawn into spaced polygonal pockets.
  • the polygonal pockets are to be formed as rectangles, and each pierced hole 14 is connected by slits 15 to corner holes 16.
  • the piercing and slitting operation results in a group of four identical triangular metal members 17, the apexes of the triangles lying in the common hole 14 and the remaining corners in the holes 16, with the base being defined by a line 18 spaced slightly outwardly from a line of tangeney between adjacent holes 16. Since the configuration and formation of each pocket is the same, only one will be described in detail.
  • each of the triangular metal members 17 is bent upwardly along line 18 into a plane perpendicular to the plane of the sheet to form respective reinforcing webs 19 which occur at right angles to each other.
  • the inner portion 20 of each of the triangular metal bodies is bent inwardly along a line 21 to form a tab 22 lying in a plane parallel to the original plane of the underbody sheet 10 but spaced therefrom a distance equal to the height of the reinforcing web 19. It will be seen that the base of the reinforcing web 19 is co-extensive with the side of a pocket, designated 23, and that all four sides of a pocket are reinforced similarly.
  • a sheet is formed with a series of spaced pockets 23
  • that portion of the underbody sheet between the pockets and lying in the original plane of the sheet is designated as a lower Web 24 in FIG. 2.
  • the web 24 consists of a grid of continuous strips of metal effectively extending from each side of the underbody sheet to the opposite side, as shown in FIG. 3.
  • the only portion of the entire underbody that is not connected to the top plate by a reinforcing web 19 is that portion lying between adjacent pockets and defined by the webs 24.
  • the dimension of these webs can be made as small as is desirable, based on the unit loading and deflection characteristics that the completed plate will be called upon to exhibit in service, It is only by the subdivision of the reinforcing webs into four webs for each pocket that this extensive reinforcing is obtained.
  • the floor plate is completed, insofar as the metallic portions are concerned, by welding or otherwise aflixing the underbody 10 to a continuous top plate 26.
  • plate 26 is made larger than the underbody rim 12 and extends over the rim on all sides.
  • the plate 26 is preferably welded to each of the inwardly extending tabs 20 by spot Welding, and the plate is also welded to the perimetrical rim 12 at suitable intervals.
  • the resulting structure is functionally an integral piece and is very strong against vertical deflections.
  • the top plate 26 may be made of a hard, thick material selected for its resistance against dimpling and deformation since it undergoes no structural change such as drawing or stamping.
  • the material of the upper plate may be characterized as relatively hard with relation to the material of the underbody 10.
  • the floor is assembled by laying the plates over supporting pedestals.
  • the pedestals comprise a cruciform head 30 having a depending tubular shank 31 received over a threaded rod 32 and held in vertical adjustment by a leveling nut 33.
  • a suitable base 34 is attached to the lower end of the supporting rod 32 and rests on the permanent building floor.
  • Each arm of the cruciform head 30 is made wide enough to receive adjacent corners of two floor plates, being engaged by the rims thereof, as shown in FIG. 4.
  • the floor plate of the present invention is finished by attaching a plastic lip piece 40 entirely around the perimeter.
  • the lip has a central recess 41 into which the top plate 26 is forced, and the lower portion of the lip piece extends inwardly of the plate in the space left by the rim 12 of the underbody. It is for this reason that the top plate is made larger than the underbody.
  • a sheet of finishing material or floor covering 42 is affixed to the top surface of the upper plate and is usually selected to be about as thick as the extension of the plastic lip above the plane of the floor plate.
  • the floor covering 42 may be vinyl tile or the like.
  • the lower surface of the completed floor plate may be sprayed with a sound deadening material such as a foamed elastomer.
  • a plate for a raised fioor comprising, a fiat upper sheet of weldable metal, an underbody Welded to said sheet having an upper plane coincident with the underside of said upper sheet and a lower plane spaced therefrom, a plurality of reinforcing webs extending at right angles from the lower plane of said underbody to the upper plane thereof and forming a multiplicity of spaced polygonal pockets in said underbody, said webs being formed at each of the sides of each of said pockets, an inturned tab member integral with each of said reinforcing webs and adapted to be welded to the undersurface of said upper sheet, a spaced perimetrical rim formed on said underbody and welded to said upper sheet, and a continuous reinforcing web extending at right angles from said rim to the lower portion of said underbody.
  • a floor plate as defined in claim 2 a plastic lip piece on the perimeter of said upper sheet and extending above the plane thereof, and a body of floor covering material afiixed to said upper sheet within the confines of said lip piece.
US472269A 1965-07-15 1965-07-15 Raised floor plate Expired - Lifetime US3380217A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US472269A US3380217A (en) 1965-07-15 1965-07-15 Raised floor plate
DE19661683318 DE1683318A1 (de) 1965-07-15 1966-06-15 Bodenplatte zum Aufbau einer Doppelbodenkonstruktion mit angehobenem Oberboden
NL6608888A NL6608888A (de) 1965-07-15 1966-06-27
BE684139D BE684139A (de) 1965-07-15 1966-07-14
CH1026466A CH447568A (de) 1965-07-15 1966-07-14 Bodenplatte zum Aufbau einer Doppelbodenkonstruktion mit angehobenem Oberboden

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US472269A US3380217A (en) 1965-07-15 1965-07-15 Raised floor plate

Publications (1)

Publication Number Publication Date
US3380217A true US3380217A (en) 1968-04-30

Family

ID=23874816

Family Applications (1)

Application Number Title Priority Date Filing Date
US472269A Expired - Lifetime US3380217A (en) 1965-07-15 1965-07-15 Raised floor plate

Country Status (5)

Country Link
US (1) US3380217A (de)
BE (1) BE684139A (de)
CH (1) CH447568A (de)
DE (1) DE1683318A1 (de)
NL (1) NL6608888A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856256A (en) * 1986-09-10 1989-08-15 O M Kiki Co., Ltd. Free access floor panel
US5048242A (en) * 1990-04-04 1991-09-17 C-Tec, Inc. Access floor system with hemmed edge panel
WO1999060228A1 (de) * 1998-05-19 1999-11-25 Seg Systementwicklungsgesellschaft Mbh Hohlraumbodenkonstruktion
US20060087094A1 (en) * 2003-12-01 2006-04-27 American Trim, Llc Anti-slip step for a motor vehicle and a method of forming the same
US20070028542A1 (en) * 2005-08-05 2007-02-08 Lafferty George A Iii Structural reinforcing system components
US20090101195A1 (en) * 2007-10-18 2009-04-23 Glenn Alan Reynolds Mini-truss thin-sheet panel assembly
US20110094502A1 (en) * 2009-10-23 2011-04-28 Glenn Alan Reynolds Thin mirror with truss backing and mounting arrangement therefor
US10753106B2 (en) 2012-10-04 2020-08-25 Schluter Systems L.P. Peel and stick decoupling membrane

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606156A (en) * 1983-08-04 1986-08-19 C-Tec, Inc. Access flooring panel
US4573304A (en) * 1983-11-25 1986-03-04 Donn Incorporated Honeycomb floor panel and the like
US4594833A (en) * 1983-11-25 1986-06-17 Donn Incorporated Honeycomb floor panel and the like
DE3435693A1 (de) * 1984-09-28 1985-05-02 Ulrich Eugen 5000 Köln Milbradt-Lojda Verfahren zur vorgefertigten herstellung kern- und / oder luftschichtiger bauteilbeschichtungen mit ankerstaeben
US6622443B2 (en) 1999-05-25 2003-09-23 Interface, Inc. Trim for high pressure laminate and other decorative floor coverings

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008551A (en) * 1958-05-29 1961-11-14 Dana Corp Structural panel construction
US3067843A (en) * 1962-12-11 Floor paneling arrangement
US3150748A (en) * 1960-09-16 1964-09-29 Liskey Aluminum Elevated sectional floor
US3157254A (en) * 1958-01-30 1964-11-17 Floating Floors Inc Sectional flooring
US3279134A (en) * 1963-05-28 1966-10-18 Electronic Flooring Systems In Elevated floor construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067843A (en) * 1962-12-11 Floor paneling arrangement
US3157254A (en) * 1958-01-30 1964-11-17 Floating Floors Inc Sectional flooring
US3008551A (en) * 1958-05-29 1961-11-14 Dana Corp Structural panel construction
US3150748A (en) * 1960-09-16 1964-09-29 Liskey Aluminum Elevated sectional floor
US3279134A (en) * 1963-05-28 1966-10-18 Electronic Flooring Systems In Elevated floor construction

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856256A (en) * 1986-09-10 1989-08-15 O M Kiki Co., Ltd. Free access floor panel
US5048242A (en) * 1990-04-04 1991-09-17 C-Tec, Inc. Access floor system with hemmed edge panel
WO1999060228A1 (de) * 1998-05-19 1999-11-25 Seg Systementwicklungsgesellschaft Mbh Hohlraumbodenkonstruktion
US20060087094A1 (en) * 2003-12-01 2006-04-27 American Trim, Llc Anti-slip step for a motor vehicle and a method of forming the same
US20070028542A1 (en) * 2005-08-05 2007-02-08 Lafferty George A Iii Structural reinforcing system components
US8327592B2 (en) * 2005-08-05 2012-12-11 Lafferty Iii George A Structural reinforcing system components
US20090101195A1 (en) * 2007-10-18 2009-04-23 Glenn Alan Reynolds Mini-truss thin-sheet panel assembly
US8327604B2 (en) 2007-10-18 2012-12-11 Gossamer Space Frames Mini-truss thin-sheet panel assembly
US8607529B2 (en) * 2007-10-18 2013-12-17 Gossamer Space Frames Mini-truss thin-sheet panel assembly
US20110094502A1 (en) * 2009-10-23 2011-04-28 Glenn Alan Reynolds Thin mirror with truss backing and mounting arrangement therefor
US8132391B2 (en) 2009-10-23 2012-03-13 Gossamer Space Frames Thin mirror with truss backing and mounting arrangement therefor
US10753106B2 (en) 2012-10-04 2020-08-25 Schluter Systems L.P. Peel and stick decoupling membrane

Also Published As

Publication number Publication date
NL6608888A (de) 1967-01-16
BE684139A (de) 1966-12-16
CH447568A (de) 1967-11-30
DE1683318A1 (de) 1969-11-06

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