EP1378617A1 - Elevated floor assembly - Google Patents
Elevated floor assembly Download PDFInfo
- Publication number
- EP1378617A1 EP1378617A1 EP03101958A EP03101958A EP1378617A1 EP 1378617 A1 EP1378617 A1 EP 1378617A1 EP 03101958 A EP03101958 A EP 03101958A EP 03101958 A EP03101958 A EP 03101958A EP 1378617 A1 EP1378617 A1 EP 1378617A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- floor
- side faces
- floor panels
- adjacent
- elevated
- 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
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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
- E04F15/024—Sectional false floors, e.g. computer floors
- E04F15/02405—Floor panels
Definitions
- the present invention relates to an elevated floor assembly.
- Elevated floor assemblies are commonly used in commercial and office buildings, where substantial numbers of cables, pipes and ducts are required and where it is desirable to maintain accessibility to the latter for ease of installation, change or removal.
- An elevated floor assembly basically consists of floor panels supported above the base floor by pedestals. The pedestals are normally located so as to provide support at panel corners. Cables, pipes or even air conditioning services are thus installed in a chamber formed between the base floor and the elevated floor and are easily accessible by removing floor panels where needed.
- Elevated floor assemblies have adjacent floor panels firmly in contact with each other. Supporting the floor panels by pedestals at panel corners allows for some relative movement of the floor panels due to the placement and removal of weight onto the floor panels. This relative movement results in floor squeaking, which can be rather disturbing. Indeed, it is a common experience to walk across such an elevated floor assembly and hear a floor squeak in response to placement and removal of weight of a person crossing the floor.
- the pedestals can be supplemented by horizontal stringer members.
- stringer members form a grid to provide support along the panel sides. Due to the extra material, elevated floor assemblies with such stringer members are more expensive and take longer to assemble. Furthermore, the squeak reduction is insufficient.
- the invention proposes an elevated floor assembly comprising floor panels having a thickness, an upper surface, an opposite lower surface and side faces. These side faces have two corner portions and a central portion lying in-between the two corner portions.
- the elevated floor assembly further includes pedestals, which provide support at the corner portions.
- two adjacent side faces of two adjacent floor panels are designed so that their corner portions are in abutment, whereas a slot extending over the whole thickness of the two adjacent floor panels is formed, separating the central portions of the two adjacent side faces over at least part of the length of the respective central portions.
- This thin slot ensures the avoidance of floor squeaking, which is caused by the relative movement between adjacent floor panels in response for example to a load application and removal when a person walks from one panel to the adjacent panel of an elevated floor assembly, or, in fact, any other object moving across adjacent panels. It will be appreciated that the present invention proposes a very simple and inexpensive contribution to provide an elevated floor assembly, which does not give rise to such floor squeaking.
- two adjacent side faces of two adjacent floor panels are chamfered so that the slot widens in the direction of the lower surfaces of the two adjacent floor panels.
- a longitudinal cut is extended over at least part of the length of the central portions of the two adjacent side faces, whereby only that part of the thickness of the panel is removed that has contact with the adjacent panel. Except where the edging is of vertical type, i.e. where the side faces of the floor panels are not chamfered, it will not be necessary for the slot to be cut through the full thickness of the panel. Preferably, however, the longitudinal cut extends over the whole length of the respective central portions, thereby warranting that two adjacent floor panels touch only at their corner portions.
- the width of the longitudinal cut is preferably in the range of a few tenths of 1 mm. This is sufficient to avoid floor squeaking, while at the same time not allowing too much dirt to accumulate in the longitudinal cuts.
- the floor panels have a rectangular shape. It is however not excluded to provide the elevated floor assembly with floor panels having any other polygonal shape.
- FIG. 1 An elevated floor assembly 10 in accordance with the present invention is shown in FIG. 1.
- Such an elevated floor assembly 10 consists of individual floor panels 12 1 , 12 2 supported above a base floor by means of pedestals (not shown) so as to define a chamber therebetween in which cables, pipes or even air conditioning services may be installed.
- the floor panels 12 1 , 12 2 shown in FIG.1 are of rectangular shape and have an upper surface 14, an opposite lower surface 16 and side faces 18, the latter comprising two corner portions 20 and a central portion 22 lying therebetween.
- Panel supporting heads of the pedestals which are schematically indicated by circles 24, are designed to provide support to the floor panels 12 1 , 12 2 at their corner portions 20.
- Elevated floor assemblies 10 commonly have adjacent floor panels 12 firmly in contact with each other. Supporting the floor panels 12 by means of pedestals at their corner portions 20 allows for some relative movement of the central portions 22 of the floor panels 12 due to the placement and removal of weight onto these central portions 22. This relative movement results in floor squeaking, which can be rather disturbing and needs to be avoided.
- this floor squeaking is avoided in that only the corner portions 20 of two adjacent panels 12 1 , 12 2 are in abutment, whereas a slot 26 separates the central portions 22 of the two adjacent side faces 18 1 , 18 2 .
- the two adjacent floor panels 12 1 , 12 2 have chamfered side faces 18 1 , 18 2 and comprise a longitudinal cut 28 on their upper surface, extending over the whole length of the central portions 22.
- the chamfered adjacent side faces 18 1 , 18 2 and the two adjacent longitudinal cuts 28 co-operate to define the slot 26, which separates the central portions 22 of the two adjacent floor panels 12 1 , 12 2 .
- the adjacent side faces 18 1 , 18 2 are only in abutment at their corner portions 20, between which relative movement is excluded due to the secure support provided by the panel supporting heads 24 of the pedestals. It follows that although some relative movement remains between the central portions 22 of the panel side faces 18 1 , 18 2 , the slot 26 separating the latter avoids floor squeaking in the elevated floor assembly 10.
- each side face 18 of each floor panel 12 of the elevated floor assembly 10 comprises a longitudinal cut 28 in its central portion 22.
- the cut 28 has a width in the range of 1 to 2 mm, which is sufficient to avoid floor squeaking, while at the same time not allowing too much dirt to accumulate in the latter.
- a floor panel 12 is commonly a panel of 60 cm ⁇ 60 cm, both FIG.1 and 2 are not to scale, particularly with regard to the width of the longitudinal cuts 28, which is greatly exaggerated.
- the chamfering of the panel side faces 18 is advantageously of about 1° to 2° and is also exaggerated in FIG. 2.
- a floor panel 12 for an elevated floor assembly 10 commonly a rectangular shape, i.e. four panel sides 18. However it is not excluded and still within the scope of the present invention to design the elevated floor assembly 10 with floor panels 12 having any other polygonal shape.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Floor Finish (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Description
- The present invention relates to an elevated floor assembly.
- Elevated floor assemblies are commonly used in commercial and office buildings, where substantial numbers of cables, pipes and ducts are required and where it is desirable to maintain accessibility to the latter for ease of installation, change or removal. An elevated floor assembly basically consists of floor panels supported above the base floor by pedestals. The pedestals are normally located so as to provide support at panel corners. Cables, pipes or even air conditioning services are thus installed in a chamber formed between the base floor and the elevated floor and are easily accessible by removing floor panels where needed.
- Elevated floor assemblies have adjacent floor panels firmly in contact with each other. Supporting the floor panels by pedestals at panel corners allows for some relative movement of the floor panels due to the placement and removal of weight onto the floor panels. This relative movement results in floor squeaking, which can be rather disturbing. Indeed, it is a common experience to walk across such an elevated floor assembly and hear a floor squeak in response to placement and removal of weight of a person crossing the floor.
- Providing better support for the floor panels can reduce this squeaking. Hence, the pedestals can be supplemented by horizontal stringer members. Such stringer members form a grid to provide support along the panel sides. Due to the extra material, elevated floor assemblies with such stringer members are more expensive and take longer to assemble. Furthermore, the squeak reduction is insufficient.
- Due to the disturbing and damaging effect of this floor squeaking especially in commercial and office buildings, it is an object of this invention to provide an elevated floor assembly which does not give rise to such floor squeaking. This problem is solved by an elevated floor assembly as claimed in claim 1.
- The invention proposes an elevated floor assembly comprising floor panels having a thickness, an upper surface, an opposite lower surface and side faces. These side faces have two corner portions and a central portion lying in-between the two corner portions. In order to support the floor panels above a base floor, the elevated floor assembly further includes pedestals, which provide support at the corner portions. In accordance with an important aspect of the present invention, two adjacent side faces of two adjacent floor panels are designed so that their corner portions are in abutment, whereas a slot extending over the whole thickness of the two adjacent floor panels is formed, separating the central portions of the two adjacent side faces over at least part of the length of the respective central portions. This thin slot ensures the avoidance of floor squeaking, which is caused by the relative movement between adjacent floor panels in response for example to a load application and removal when a person walks from one panel to the adjacent panel of an elevated floor assembly, or, in fact, any other object moving across adjacent panels. It will be appreciated that the present invention proposes a very simple and inexpensive contribution to provide an elevated floor assembly, which does not give rise to such floor squeaking.
- Advantageously, two adjacent side faces of two adjacent floor panels are chamfered so that the slot widens in the direction of the lower surfaces of the two adjacent floor panels.
- To achieve such a slot, a longitudinal cut is extended over at least part of the length of the central portions of the two adjacent side faces, whereby only that part of the thickness of the panel is removed that has contact with the adjacent panel. Except where the edging is of vertical type, i.e. where the side faces of the floor panels are not chamfered, it will not be necessary for the slot to be cut through the full thickness of the panel. Preferably, however, the longitudinal cut extends over the whole length of the respective central portions, thereby warranting that two adjacent floor panels touch only at their corner portions.
- The width of the longitudinal cut is preferably in the range of a few tenths of 1 mm. This is sufficient to avoid floor squeaking, while at the same time not allowing too much dirt to accumulate in the longitudinal cuts.
- It shall be appreciated that it is not excluded to provide horizontal stringer members in order to further support the floor panels.
- In a preferred embodiment of the invention, the floor panels have a rectangular shape. It is however not excluded to provide the elevated floor assembly with floor panels having any other polygonal shape.
- The present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
- Figure 1:
- is a top view of an elevated floor assembly in accordance with the present invention;
- Figure 2:
- is a section along line 1-1 in FIG. 1.
- An
elevated floor assembly 10 in accordance with the present invention is shown in FIG. 1. Such anelevated floor assembly 10 consists ofindividual floor panels floor panels upper surface 14, an oppositelower surface 16 andside faces 18, the latter comprising twocorner portions 20 and acentral portion 22 lying therebetween. Panel supporting heads of the pedestals, which are schematically indicated bycircles 24, are designed to provide support to thefloor panels corner portions 20. - Elevated
floor assemblies 10 commonly haveadjacent floor panels 12 firmly in contact with each other. Supporting thefloor panels 12 by means of pedestals at theircorner portions 20 allows for some relative movement of thecentral portions 22 of thefloor panels 12 due to the placement and removal of weight onto thesecentral portions 22. This relative movement results in floor squeaking, which can be rather disturbing and needs to be avoided. - According to the invention this floor squeaking is avoided in that only the
corner portions 20 of twoadjacent panels slot 26 separates thecentral portions 22 of the twoadjacent side faces - The two
adjacent floor panels side faces longitudinal cut 28 on their upper surface, extending over the whole length of thecentral portions 22. The chamfered adjacent side faces 181, 182 and the two adjacentlongitudinal cuts 28 co-operate to define theslot 26, which separates thecentral portions 22 of the twoadjacent floor panels corner portions 20, between which relative movement is excluded due to the secure support provided by thepanel supporting heads 24 of the pedestals. It follows that although some relative movement remains between thecentral portions 22 of the panel side faces 181, 182, theslot 26 separating the latter avoids floor squeaking in the elevatedfloor assembly 10. - In the embodiment shown in FIG. 1, each
side face 18 of eachfloor panel 12 of the elevatedfloor assembly 10 comprises alongitudinal cut 28 in itscentral portion 22. - Preferably, the
cut 28 has a width in the range of 1 to 2 mm, which is sufficient to avoid floor squeaking, while at the same time not allowing too much dirt to accumulate in the latter. It will be noted that as afloor panel 12 is commonly a panel of 60 cm × 60 cm, both FIG.1 and 2 are not to scale, particularly with regard to the width of thelongitudinal cuts 28, which is greatly exaggerated. The chamfering of thepanel side faces 18 is advantageously of about 1° to 2° and is also exaggerated in FIG. 2. - It remains to be noted that, as shown in FIG. 1, a
floor panel 12 for anelevated floor assembly 10 commonly a rectangular shape, i.e. fourpanel sides 18. However it is not excluded and still within the scope of the present invention to design theelevated floor assembly 10 withfloor panels 12 having any other polygonal shape. - Although not shown in the accompanying drawings, it is not excluded to provide horizontal stringer members in order to further support the
floor panels 12 of the elevatedfloor assembly 10.
Claims (8)
- An elevated floor assembly (10) comprising:floor panels (12) having a thickness, an upper surface (14), an opposite lower surface (16) and side faces (18), wherein each of said side faces (18) has two corner portions (20) and a central portion (22) lying inbetween said two corner portions (20); andpedestals for supporting said floor panels (12) above a base floor, wherein said pedestals provide support at said corner portions (20);
two adjacent side faces (181, 182) of two adjacent floor panels (121, 122) are designed so that their corner portions (20) are in abutment, whereas a slot (26) extending over the whole thickness of said two adjacent floor panels (121, 122) is formed, thereby separating the central portions (22) of said two adjacent side faces (181, 182) over at least part of the length of the central portions (22). - The elevated floor assembly (10) as claimed in claim 1, characterised in that said two adjacent side faces (181, 182) of said two adjacent floor panels (121, 122) are chamfered.
- The elevated floor assembly (10) as claimed in claim 1 or 2, characterised by a longitudinal cut (28) extending over at least part of the length of the central portions (22) of said two adjacent side faces (181, 182) of said two adjacent floor panels (121, 122).
- The elevated floor assembly (10) as claimed in claim 1 or 2, characterised by a longitudinal cut (28) extending over the whole length of the central portions (22) of said two adjacent side faces (181, 182) of said two adjacent floor panels (121, 122).
- The elevated floor assembly (10) as claimed in any one of claims 1 to 4, characterised in that said longitudinal cut (28) has a width in the range of a few tenths of 1 mm.
- The elevated floor assembly (10) as claimed in any one of claims 1 to 5, characterised by horizontal stringer members, which form a grid to provide support to said floor panels (12) along said side faces (18).
- The elevated floor assembly (10) as claimed in any one of claims 1 to 6, characterised in that said floor panels (12) have a rectangular shape.
- The elevated floor assembly (10) as claimed in any one of claims 1 to 6, characterised in that said floor panels (12) have a polygonal shape.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LU90936A LU90936B1 (en) | 2002-07-05 | 2002-07-05 | Elevated floor assembly |
LU90936 | 2002-07-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1378617A1 true EP1378617A1 (en) | 2004-01-07 |
EP1378617B1 EP1378617B1 (en) | 2012-02-08 |
Family
ID=29720352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03101958A Expired - Lifetime EP1378617B1 (en) | 2002-07-05 | 2003-07-01 | Elevated floor assembly |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1378617B1 (en) |
AT (1) | ATE544921T1 (en) |
LU (1) | LU90936B1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1547666A (en) | 1967-10-17 | 1968-11-29 | New prefabricated floor | |
DE2856367A1 (en) | 1977-12-23 | 1979-07-05 | Zoontjens Beheer B V P | System for paving flat roofs - comprising tiles laid on bearing elements of sound absorbent material and drainage channels formed by the tile edges |
EP0411568A2 (en) | 1989-08-02 | 1991-02-06 | Hitachi Metals, Ltd. | Free access floor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8828583D0 (en) * | 1988-12-07 | 1989-01-11 | Ari Propalflor Ltd | Floor panel |
JP4638003B2 (en) * | 1999-07-28 | 2011-02-23 | 朝日ウッドテック株式会社 | Veneer |
-
2002
- 2002-07-05 LU LU90936A patent/LU90936B1/en active
-
2003
- 2003-07-01 EP EP03101958A patent/EP1378617B1/en not_active Expired - Lifetime
- 2003-07-01 AT AT03101958T patent/ATE544921T1/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1547666A (en) | 1967-10-17 | 1968-11-29 | New prefabricated floor | |
DE2856367A1 (en) | 1977-12-23 | 1979-07-05 | Zoontjens Beheer B V P | System for paving flat roofs - comprising tiles laid on bearing elements of sound absorbent material and drainage channels formed by the tile edges |
EP0411568A2 (en) | 1989-08-02 | 1991-02-06 | Hitachi Metals, Ltd. | Free access floor |
Also Published As
Publication number | Publication date |
---|---|
LU90936B1 (en) | 2004-01-06 |
EP1378617B1 (en) | 2012-02-08 |
ATE544921T1 (en) | 2012-02-15 |
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