GB2206142A - Access floor panels - Google Patents
Access floor panels Download PDFInfo
- Publication number
- GB2206142A GB2206142A GB08813202A GB8813202A GB2206142A GB 2206142 A GB2206142 A GB 2206142A GB 08813202 A GB08813202 A GB 08813202A GB 8813202 A GB8813202 A GB 8813202A GB 2206142 A GB2206142 A GB 2206142A
- Authority
- GB
- United Kingdom
- Prior art keywords
- panel
- floor
- laminar
- pan member
- access
- 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.)
- Granted
Links
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
- E04F15/024—Sectional false floors, e.g. computer floors
- E04F15/02405—Floor panels
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Floor Finish (AREA)
Description
A a i 2 Ir20 6 '114 2 - 1 IMPROVEMENTS IN OR RELATING TO ACCESS FLOOR
STRUCTURES Thi s invention relates to access floor structures and to a floor panel for such a structure.
An access floor structure provides a floor surface spaced above a solid, e.g. reinforced concrete, floor of a building to provide a cavity in which electrical cables and other services can extend concealed from view. Such structures are particularly useful in computer rooms where the underfloor plenum may also be used for air conditioning purposes. Conventionally, the floor structure comprises pedestals with feet resting on the solid floor and upper ends supporting the floor panels either directly or indirectly by way of a grid of support beams or stringers.
The floor panels require good structural an d sound and thermal insulation properties. Originally such panels were made for example of chipboard covered with carpet but although such composite wood materials perform well under compressive loads they soon fail under tensile or sheer stresses. Steel panelsi on the other hand, although having good structural properties as well as wear and fire resistance,, do not provide adequate sound and thermal insulation. one improved embodiment of steel panel has a lower skin with circular depressions on its upper surface spot welded to a planar upper panel with the enclosed space filled with a cementitious material.
Another design called the Guardianw manufactured by Propaflor Limited has a structural steel pan which locates a core of insulating material which may be provided with an additional steel sheet 2 - cladding. The pan has an edge corrugation formed by a downwardly extending double thickness fold of which the outer skin projects upwardly to create the side walls of the pan. Additionally, a rib is provided at the base of each side- wall. In a later design described in European Patent Appln. No. 168247 each floor panel comprises a plane rectangular laminar panel member formed of a wood composite material. A sheet of metal is mounted in touching contact with the lower surface of the panel member and has channels formed therein extending across the full width thereof. Metal support beams are mounted on opposite sides of the panel and are connected to and extend transversely of the channels in the sheet of metal so that the load on the panel is carried by the channels and the support beams to the pedestal units at the corners of the panel. This known floor panel is expensive to manufacture because it consists of numerous components requiring separate fabrication and subsequent manual assembly.
It is an object of the present invention to provide an improved floor panel and access floor structure incorporating same.
According to a first aspect of the present invention there is provided an access floor structure comprising one or more panels according to the second aspect of the invention and support means, for example pedestal units, for supporting the panel(s) either directly (and preferably at the corners thereof) or indirectly via a framework of stringers.
According to a second aspect of the present invention there is provided a floor panel for an access floor structure, comprising a structural pan member having a floor and side walls, a laminar panel element (preferably of wood composite material) i 1 4 f X g fitted in said pan member and resting on protrusions from the floor thereof, and a cover panel fixed (as by adhesive. bonding) to said laminar panel element (and preferably to the side walls of said pan member), the floor protrusions being so arranged as to increase the strength of the panel on twomutually perpendicular axes thereof.
The invention will now be further described by way of example only with reference to the accompanying drawings, in which:- Fig. 1 is an exploded isometric view of one embodiment of floor panel in accordance with the invention, and Fig. 2 is an underneath isometric view of the same panel.
Referring now to the drawings, the access floor structure comprises one or more structural floor panels raised above a solid, e.g. reinforced concrete, floor of a building by pedestal units (not shown) arranged either to support each r panel at the four corners thereof or, alternatively, to support a grid of stringers on which the floor panels are located. Such access floor structures are well known and require no further description.
The floor panel illustrated in the drawings comprises a plane rectangular laminar panel member 1 made of a wood composite material, preferably chipboard. The panel 1 fits snugly into a galvanised 2 with a planar floor 3 interrupted by triangular lands 4 arranged symmetrically central circular land 5 to produce the appearance of a wheel hub and spokes in the underneath view shown in Fig. 2. The triangular lands 4 have grooves 6 parallel to the adjacent pan edge. Circular lands 4a are provided at the corners steel pan generally around a ectanaular - 4 of the pan 2.
The underside of the panel 1 is bonded by adhesive (e..g. a structural epoxy adhesive) to the lands 4, 4a The side walls 7 of the metal pan are stepped outwardly and have at their upper edges out-turned lips 8 which are overlapped by a top skin 9 of galvanised steel bonded by adhesive (e. g. a laminating adhesive) to the panel 1 and welded to the lips 8 to complete the structure.
The steel pan 2 may be fabricated in a single pressing operation and in a modified embodiment the top skin 9 is formed integrally with and alongside the pan 2 and then cut off before being laminated to the chipboard panel 1 which is then inserted into the pan 2 which has previously been treated on the lands 4 with the structural adhesive (which may alternatively or additionally be applied to the free surface of the panel 1).
It will be appreciated that numerous other modifications may be made without departing from the scope of the invention. For example, the lands of the metal pan may be arranged differently; also, the chipboard may be replaced by another material (although a wood composite is preferred).
z ll
Claims (6)
1. A floor panel for an access floor structure, comprising a structural pan member having a floor and side walls, a laminar panel element fitted in said pan member and resting on protrusions from t'he floor thereof, and a cover panel fixed to said laminar panel element, the floor protrusions being so arranged as to increase the strength of the panel on two mutually perpendicular axes thereof.
2. A floor panel as claimed in claim 1, wherein the laminar panel element is made of wood composite material.
3. A floor panel as claimed in claim 1 or 2, wherein the cover panel is adhesively bonded, to the laminar panel element and to the side walls of the pan member.
4. A floor panel as claimed in any one of the preceding claims, wherein the cover panel is formed integrally with and alongside the pan member.
5. A floor panel for an access floor structure, substantially as herein described with reference to the accompanying drawings.
6. An access floor structure comprising one or more panels according to any one of the preceding claims, and support means for supporting the panels above a solid floor.
Published 1985 at Illhe Patent Office, State House, 66.71 High Holborn. London WC1R 4TP. Rirther copies mkv be obtained from The Patent Office, Sales Branch, St Mary Cray, Orpington, Kent. BR5 3RD. Printed by Multiplex techniques ltd, St Mary Cray, Kent. Con. 1187.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878713183A GB8713183D0 (en) | 1987-06-05 | 1987-06-05 | Access floor structures |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8813202D0 GB8813202D0 (en) | 1988-07-06 |
GB2206142A true GB2206142A (en) | 1988-12-29 |
GB2206142B GB2206142B (en) | 1991-12-04 |
Family
ID=10618426
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB878713183A Pending GB8713183D0 (en) | 1987-06-05 | 1987-06-05 | Access floor structures |
GB8813202A Expired - Fee Related GB2206142B (en) | 1987-06-05 | 1988-06-03 | Improvements in or relating to access floor structures |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB878713183A Pending GB8713183D0 (en) | 1987-06-05 | 1987-06-05 | Access floor structures |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0294212A3 (en) |
GB (2) | GB8713183D0 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6101768A (en) * | 1995-09-11 | 2000-08-15 | Springstead; Gary | Center supported ventilated raised floor with grated core |
US9683375B2 (en) | 2015-11-13 | 2017-06-20 | United Construction Products, Inc. | Support plate system for elevated flooring tiles |
EP3739145B1 (en) * | 2016-09-16 | 2023-06-21 | United Construction Products, LLC | Support plate system for elevated flooring tiles |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1162508A (en) * | 1966-09-01 | 1969-08-27 | Liskey Aluminum | Improved Elevated Sectional Panel Floor. |
US3568390A (en) * | 1969-02-24 | 1971-03-09 | Liskey Aluminum | Reinforced floor panel structure |
GB1322047A (en) * | 1970-03-06 | 1973-07-04 | Liskey Aluminum | Floor panels |
GB2050904A (en) * | 1979-06-20 | 1981-01-14 | Tate Architectural Products | Rigid stiffening web for load- bearing panel |
GB2051909A (en) * | 1979-06-20 | 1981-01-21 | Tate Architectural Products | Rigid flexure-resistant structural member and composite panel including same |
US4319520A (en) * | 1980-01-07 | 1982-03-16 | Westinghouse Electric Corp. | Air flow floor panel |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1533894A (en) * | 1967-08-10 | 1968-07-19 | Liskey Aluminum | Set of floor panels for use in raised floor system |
DE2102050A1 (en) * | 1971-01-16 | 1972-07-27 | Homuth geb. Schimmel, Christel; Schimmel, Günther; 4816 Sennestadt | Base plate for creating mobile floors and platforms |
FR2317445A1 (en) * | 1975-07-10 | 1977-02-04 | Cs Steel Et Cie Sa | Slab for construction of raised floor - is smooth upper panel with ribbed underlying caisson supported on jacks |
FR2459334A1 (en) * | 1979-06-20 | 1981-01-09 | Tate Architectural Products | Load bearing panel with stiffening web - is made with array of punched, cold-formed domed projections |
-
1987
- 1987-06-05 GB GB878713183A patent/GB8713183D0/en active Pending
-
1988
- 1988-06-03 EP EP88305075A patent/EP0294212A3/en not_active Withdrawn
- 1988-06-03 GB GB8813202A patent/GB2206142B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1162508A (en) * | 1966-09-01 | 1969-08-27 | Liskey Aluminum | Improved Elevated Sectional Panel Floor. |
US3568390A (en) * | 1969-02-24 | 1971-03-09 | Liskey Aluminum | Reinforced floor panel structure |
GB1322047A (en) * | 1970-03-06 | 1973-07-04 | Liskey Aluminum | Floor panels |
GB2050904A (en) * | 1979-06-20 | 1981-01-14 | Tate Architectural Products | Rigid stiffening web for load- bearing panel |
GB2051909A (en) * | 1979-06-20 | 1981-01-21 | Tate Architectural Products | Rigid flexure-resistant structural member and composite panel including same |
US4319520A (en) * | 1980-01-07 | 1982-03-16 | Westinghouse Electric Corp. | Air flow floor panel |
Also Published As
Publication number | Publication date |
---|---|
EP0294212A2 (en) | 1988-12-07 |
GB8813202D0 (en) | 1988-07-06 |
EP0294212A3 (en) | 1989-02-08 |
GB2206142B (en) | 1991-12-04 |
GB8713183D0 (en) | 1987-07-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940603 |