WO2012173492A1 - A grating clamp and method for fixing a grating to a support - Google Patents

A grating clamp and method for fixing a grating to a support Download PDF

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Publication number
WO2012173492A1
WO2012173492A1 PCT/NO2012/050102 NO2012050102W WO2012173492A1 WO 2012173492 A1 WO2012173492 A1 WO 2012173492A1 NO 2012050102 W NO2012050102 W NO 2012050102W WO 2012173492 A1 WO2012173492 A1 WO 2012173492A1
Authority
WO
WIPO (PCT)
Prior art keywords
grating
clamp member
clamp
support
bears against
Prior art date
Application number
PCT/NO2012/050102
Other languages
French (fr)
Inventor
Arne Gya
Original Assignee
Oglaend System Technology As
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 Oglaend System Technology As filed Critical Oglaend System Technology As
Priority to US14/126,333 priority Critical patent/US20140215960A1/en
Priority to KR1020147001013A priority patent/KR20140040814A/en
Priority to CN201280029441.3A priority patent/CN103688004A/en
Publication of WO2012173492A1 publication Critical patent/WO2012173492A1/en
Priority to NO20131677A priority patent/NO20131677A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/10—Built-in gratings, e.g. foot-scrapers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/42—Gratings; Grid-like panels
    • E04C2/428—Separate connecting means, e.g. connecting gratings to underlying structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/71—Rod side to plate or side
    • Y10T403/7182—Yoke or ring-type connector

Definitions

  • a grating clamp More precisely there is provided a grating clamp for fixing grating to a support where a first clamp member bears against the grating and a second clamp member bears against the support in a direction towards the grating. There is also provided a method for fixing a grating to a support.
  • Gratings are widely used for such purposes as building floors in industrial compounds. Inrecent years gratings made from composite materials haves been widely employed, particularly due to their corrosion properties.
  • the purpose of the invention is to overcome or reduce at lest one of the disadvantages of the prior art.
  • a grating clamp for fixing grating to a support where a first clamp member bears against the grating and a second clamp member bears against the support in a direction towards the grating, wherein the first clamp member or a third clamp member bears against the support in a direction away from the grating.
  • the grating clamp is thus fixed to the support and will not start to move relative the support even if the bearing against the grating should work loose due to vibration.
  • the second clamp member may bear against a surface of the support facing away from the grating while the first clamp member or the third clamp member may bear against a surface of the support facing the grating .
  • the first clamp member may be resiliently biased against the grating . By letting the first clamp member being biased by pretension towards the grating, it is less probable that the grating will work loose due to vibration.
  • the third clamp member may be telescopically movable in the second clamp member.
  • the first clamp member and the second clamp member may be biased towards each other by use of a screw connection.
  • the height of the second clamp member from the surface of the support and up to the first clamp member advantageously should be one millimetre less than the height of the grate beam.
  • the first clamp member may bear against the third clamp member, thus render a separate screw for the third clamp member superfluous.
  • a method for fixing grating to a support where a first clamp member bears against the grating and a second clamp member bears against the support in a direction towards the grating, wherein the method includes letting the first clamp member or a third clamp member bear against the support in a direction away from the grating.
  • the method may further include letting the first clamp member or the third clamp member bear against a surface of the support facing the grating .
  • the method may further include letting the first clamp member be resiliently biased against the grating .
  • the grating clamp and method according to the invention overcome the problems experienced with grating clamps working loose due to vibration and thereby damage the surface of the support.
  • Fig. 1 shows in a perspectivic view a grating clamp according to the invention
  • Fig. 2 shows the grating clamp in fig. 1 in a different view and with an additional fixing member attached ;
  • Fig. 3 shows in a side view of the grating clamp a section of a grating and a support where a first clamp member is in an intermediate position
  • Fig. 4 shows a section III-III in fig . 3;
  • Fig. 5 shows the same as in fig. 3 where the first clamp member is in clamping position and where the additional fixing member is attached;
  • Fig. 6 shows a section V-V in fig. 5;
  • Fig. 7 shows in a perspectivic view a grating clamp in an other embodiment
  • Fig. 8 shows a side view of the grating clamp in fig. 7 and a section of the g rating and the support.
  • the reference number 1 denotes a grating clamp that includes a first clamp member 2 and a second clamp member 4.
  • the second clamp member 4 has two spaced apart U-formed plate sides 6. In this preferred embodiment the two sides 6 are spaced apart by welded in nuts 8 whereof a first nut 8a and a second nut 8b are utilized for clamping purposes.
  • the lower shank 10 referred to the normal working position, has a contact face 14.
  • the first nut 8a is positioned in the upper shank 12 .
  • a first clamp screw 16 is screwed into the first nut 8a.
  • the first clamp screw 16 has a centre line 18 that is perpendicular relative the contact face 14.
  • the first clamp screw 16 and the first nut 8a forms a screw connection 20.
  • the first clamp member 2 is plate formed and is positioned generally parallel with the contact face 14, between the sides 6 and between the contact face 14 and the first clamp screw 16. The first clamp member 2 extends outside the second clamp member 4.
  • the grating clamp 1 is equipped with an additional fixing member 22 that is screwed to the grating clamp 1 by a second clamp screw 24 in the second nut 8b.
  • the grating clamp is positioned between two adjacent grating beams 26 of a grating 28.
  • the grating 28 rests on a support 30 that may be a beam of a structure not shown.
  • the first clamp member 2 rests on the lower flanges 32 of the two adjacent grating beams 26 as shown in figs. 3 and 4.
  • the contact face 14 of the second clamp member 4 bears against a surface 34 of the support 30 facing away from the grating 28.
  • a gap 36 exists between the first clamp member 2 and a side 38 facing the grating 28 of the support 30.
  • the gap 36 is closed and the first clamp member 2 bears against the support 30.
  • the first clamp member 2 is thus further biased against the grating 28 as shown in figs. 5 and 6.
  • the grating clamp 2 is clamping the grating 28 to the support 30. In addition the grating clamp 2 is clamped to the support 30. Even if the grating 28 should work loose, the grating clamp 2 is fixed to the support 30, thereby avoiding damage to any su rface layer of the support 30.
  • the additional fixing member 22 is mounted to the grating clamp 2 and biased against the grating beams 26.
  • a grating clamp 40 of another embodiment is shown in fig. 7.
  • the grating clamp 40 has a first clamp member 42 that in this embodiment has the same form as the additional fixing member 22 mentioned above, and is intended to bear at the top of two adjacent grating beams 26 as shown in fig. 8.
  • a second clamp member 44 has a protruding contact face 46 that is designed to bear against the surface 34 of the support 30.
  • a third clamp member 48 has a protruding contact face 50 that is designed to bear at the surface 38 of the support 30.
  • the third clamp member 48 is telescopic movable in the second clamp member 44 in order to open or close the gap between the two contact faces 46, 50.
  • the first clamp member 42 bears against the third clamp member 48.
  • a third clamp screw 52 extends through a bore 54 in the first clamp member 42 and into a nut 8 that is fixed to the second clamp member 44.
  • the contact face 46 of the second clamp member 44 is positioned under the surface 34 of the support 30.
  • the third clamp screw 52 is tightened until the first clamp member 42 bears against the grating beams 42 thus clamping the grating 28 to the support 30.
  • the contact face 50 of the third clamp member 48 bears against the surface 38 of the support 30.
  • the grating clamp 40 is thus fixed to the support 30 and at the same time the first clamp member 42 is pre- tensioned towards the grating 28.
  • the grating clamp 40 is particularly well suited for use where the support 30 is covered with a not shown fire resistant material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)
  • Sewage (AREA)

Abstract

A grating clamp (1, 40) and method for fixing a grating (28) to a support (30) where a first clamp member (2, 42) bears against the grating (28) and a second clamp member (4, 44) bears against the support (30) in a direction towards the grating (28), and where the first clamp member (2) or a third clamp member (48) bears against the support (30) in a direction away from the grating (28).

Description

A GRATING CLAMP AND METHOD FOR FIXING A GRATING TO A SUPPORT
There is provided a grating clamp. More precisely there is provided a grating clamp for fixing grating to a support where a first clamp member bears against the grating and a second clamp member bears against the support in a direction towards the grating. There is also provided a method for fixing a grating to a support.
Gratings are widely used for such purposes as building floors in industrial compounds. Inrecent years gratings made from composite materials haves been widely employed, particularly due to their corrosion properties.
Ordinary grating clamps that clamp the grating to its support have a weakness that they tend to work loose under vibration. This often results in damage to the surface layer of the support.
The purpose of the invention is to overcome or reduce at lest one of the disadvantages of the prior art.
The purpose is achieved according to the invention by the features as disclosed in the description below and in the following patent claims.
According to a first aspect of the invention there is provided a grating clamp for fixing grating to a support where a first clamp member bears against the grating and a second clamp member bears against the support in a direction towards the grating, wherein the first clamp member or a third clamp member bears against the support in a direction away from the grating.
The grating clamp is thus fixed to the support and will not start to move relative the support even if the bearing against the grating should work loose due to vibration.
The second clamp member may bear against a surface of the support facing away from the grating while the first clamp member or the third clamp member may bear against a surface of the support facing the grating .
The first clamp member may be resiliently biased against the grating . By letting the first clamp member being biased by pretension towards the grating, it is less probable that the grating will work loose due to vibration.
The third clamp member may be telescopically movable in the second clamp member.
The first clamp member and the second clamp member may be biased towards each other by use of a screw connection.
It has been found that the height of the second clamp member from the surface of the support and up to the first clamp member advantageously should be one millimetre less than the height of the grate beam.
The first clamp member may bear against the third clamp member, thus render a separate screw for the third clamp member superfluous.
According to a second aspect of the invention there is provided a method for fixing grating to a support where a first clamp member bears against the grating and a second clamp member bears against the support in a direction towards the grating, wherein the method includes letting the first clamp member or a third clamp member bear against the support in a direction away from the grating.
Where the second clamp member bears against a surface of the support facing away from the grating, the method may further include letting the first clamp member or the third clamp member bear against a surface of the support facing the grating .
The method may further include letting the first clamp member be resiliently biased against the grating .
The grating clamp and method according to the invention overcome the problems experienced with grating clamps working loose due to vibration and thereby damage the surface of the support.
Below, an example of a preferred grating clamp and a method for fixing a grating is explained under reference to the enclosed drawings, where:
Fig. 1 shows in a perspectivic view a grating clamp according to the invention; Fig. 2 shows the grating clamp in fig. 1 in a different view and with an additional fixing member attached ;
Fig. 3 shows in a side view of the grating clamp a section of a grating and a support where a first clamp member is in an intermediate position;
Fig. 4 shows a section III-III in fig . 3;
Fig. 5 shows the same as in fig. 3 where the first clamp member is in clamping position and where the additional fixing member is attached;
Fig. 6 shows a section V-V in fig. 5;
Fig. 7 shows in a perspectivic view a grating clamp in an other embodiment; and
Fig. 8 shows a side view of the grating clamp in fig. 7 and a section of the g rating and the support.
On the drawings the reference number 1 denotes a grating clamp that includes a first clamp member 2 and a second clamp member 4. The second clamp member 4 has two spaced apart U-formed plate sides 6. In this preferred embodiment the two sides 6 are spaced apart by welded in nuts 8 whereof a first nut 8a and a second nut 8b are utilized for clamping purposes.
Of the two shanks 10, 12 of the U-formed sides the lower shank 10, referred to the normal working position, has a contact face 14. In the upper shank 12 the first nut 8a is positioned. A first clamp screw 16 is screwed into the first nut 8a. The first clamp screw 16 has a centre line 18 that is perpendicular relative the contact face 14. The first clamp screw 16 and the first nut 8a forms a screw connection 20.
The first clamp member 2 is plate formed and is positioned generally parallel with the contact face 14, between the sides 6 and between the contact face 14 and the first clamp screw 16. The first clamp member 2 extends outside the second clamp member 4.
In fig. 2 the grating clamp 1 is equipped with an additional fixing member 22 that is screwed to the grating clamp 1 by a second clamp screw 24 in the second nut 8b.
In fig. 3 the grating clamp is positioned between two adjacent grating beams 26 of a grating 28. The grating 28 rests on a support 30 that may be a beam of a structure not shown. The first clamp member 2 rests on the lower flanges 32 of the two adjacent grating beams 26 as shown in figs. 3 and 4. The contact face 14 of the second clamp member 4 bears against a surface 34 of the support 30 facing away from the grating 28.
In the intermediate stage of installation shown in figs. 3 and 4, a gap 36 exists between the first clamp member 2 and a side 38 facing the grating 28 of the support 30.
As the first clamp screw 16 is tightened, the gap 36 is closed and the first clamp member 2 bears against the support 30. The first clamp member 2 is thus further biased against the grating 28 as shown in figs. 5 and 6.
The grating clamp 2 is clamping the grating 28 to the support 30. In addition the grating clamp 2 is clamped to the support 30. Even if the grating 28 should work loose, the grating clamp 2 is fixed to the support 30, thereby avoiding damage to any su rface layer of the support 30.
In figs. 5 and 6 the additional fixing member 22 is mounted to the grating clamp 2 and biased against the grating beams 26.
A grating clamp 40 of another embodiment is shown in fig. 7. The grating clamp 40 has a first clamp member 42 that in this embodiment has the same form as the additional fixing member 22 mentioned above, and is intended to bear at the top of two adjacent grating beams 26 as shown in fig. 8.
A second clamp member 44 has a protruding contact face 46 that is designed to bear against the surface 34 of the support 30.
A third clamp member 48 has a protruding contact face 50 that is designed to bear at the surface 38 of the support 30. The third clamp member 48 is telescopic movable in the second clamp member 44 in order to open or close the gap between the two contact faces 46, 50.
The first clamp member 42 bears against the third clamp member 48. A third clamp screw 52 extends through a bore 54 in the first clamp member 42 and into a nut 8 that is fixed to the second clamp member 44.
When the grating clamp 40 is positioned between two grating beams 26 as shown in fig. 8, the contact face 46 of the second clamp member 44 is positioned under the surface 34 of the support 30. The third clamp screw 52 is tightened until the first clamp member 42 bears against the grating beams 42 thus clamping the grating 28 to the support 30. As the third clamp screw 52 is further tightened, the contact face 50 of the third clamp member 48 bears against the surface 38 of the support 30. The grating clamp 40 is thus fixed to the support 30 and at the same time the first clamp member 42 is pre- tensioned towards the grating 28. The grating clamp 40 is particularly well suited for use where the support 30 is covered with a not shown fire resistant material.

Claims

C l a i m s
1. A grating clamp (1, 40) for fixing grating (28) to a support (30) where a first clamp member (2, 42) bears against the grating (28) and a second clamp member (4, 44) bears against the support (30) in a direction towards the grating (28), c h a r a c t e r i z e d i n that the first clamp member (2) or a third clamp member (48) bears against the support (30) in a direction away from the grating (28).
2. A grating clamp (1, 40) according to claim 1 where the second clamp member (4, 44) bears against a surface (34) of the support (30) facing away from the grating (28), c h a r a c t e r i z e d i n that the first clamp member (2) or the third clamp member (48) bears against a surface (38) of the support (30) facing the grating (28).
3. A grating clamp (1, 40) according to claim 1, c h a r a c t e r i z e d
i n that the first clamp member (2, 42) is resiliently biased against the grating (28).
4. A grating clamp (1, 40) according to claim 1, c h a r a c t e r i z e d
i n that the third clamp member (48) is telescopically movable in the second clamp member (44).
5. A grating clamp (1, 40) according to claim 1, c h a r a c t e r i z e d
i n that the first clamp member (42) bears against the third clamp member (48).
6. A grating clamp (1, 40) according to claim 1, c h a r a c t e r i z e d
i n that first clamp member (2, 42) and the second clamp member (4, 44) are biased towards each other by use of a screw connection (20).
7. A method for fixing grating (28) to a support (30) where a first clamp member (2, 42) bears against the grating (28) and a second clamp member (4, 44) bears against the support (30) in a direction towards the grating (28), c h a r a c t e r i z e d i n that the method includes letting the first clamp member (2) or a third clamp member (48) bear against the support (30) in a direction away from the grating (28).
8. A method for fixing grating (38) to a support (30) according to claim 7 where the second clamp member (4, 44) bears against a surface (34) of the support (30) facing away from the grating (38), c h a r a c t e r i z e d i n that the method further includes letting the first clamp member (2) or the third clamp member (48) bear against a surface (38) of the support (30) facing the grating (28). A method according to claim 7, c h a r a c t e r i z e d i n that the method further includes letting the first clamp member (2, 42) be resiliently biased against the grating 28.
PCT/NO2012/050102 2011-06-15 2012-05-31 A grating clamp and method for fixing a grating to a support WO2012173492A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US14/126,333 US20140215960A1 (en) 2011-06-15 2012-05-31 Grating Clamp and Method for Fixing a Grating to a Support
KR1020147001013A KR20140040814A (en) 2011-06-15 2012-05-31 A grating clamp and method for fixing a grating to a support
CN201280029441.3A CN103688004A (en) 2011-06-15 2012-05-31 A grating clamp and method for fixing a grating to a support
NO20131677A NO20131677A1 (en) 2011-06-15 2013-12-16 Grating brackets and method for attaching a grating to a support

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161497359P 2011-06-15 2011-06-15
US61/497,359 2011-06-15

Publications (1)

Publication Number Publication Date
WO2012173492A1 true WO2012173492A1 (en) 2012-12-20

Family

ID=47357305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2012/050102 WO2012173492A1 (en) 2011-06-15 2012-05-31 A grating clamp and method for fixing a grating to a support

Country Status (4)

Country Link
US (1) US20140215960A1 (en)
KR (1) KR20140040814A (en)
CN (1) CN103688004A (en)
WO (1) WO2012173492A1 (en)

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JP2017206833A (en) * 2016-05-17 2017-11-24 三進金属工業株式会社 Structure for fixing floor material

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CN103964516B (en) * 2014-05-04 2015-07-01 张素平 Bar screen fixing device of bar screen machine

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US4798029A (en) * 1987-11-30 1989-01-17 Fibergrate Corporation Hold-down clamp
JP2000265647A (en) * 1999-03-12 2000-09-26 Toho Gas Co Ltd Lock plate for grating
GB2435299A (en) * 2006-02-20 2007-08-22 Hilti Ag Grating fastener with guide member

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WO1986005228A1 (en) * 1985-02-28 1986-09-12 Pugh, Emmett, C. Grating clamp system
US4798029A (en) * 1987-11-30 1989-01-17 Fibergrate Corporation Hold-down clamp
JP2000265647A (en) * 1999-03-12 2000-09-26 Toho Gas Co Ltd Lock plate for grating
GB2435299A (en) * 2006-02-20 2007-08-22 Hilti Ag Grating fastener with guide member

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Publication number Priority date Publication date Assignee Title
JP2017206833A (en) * 2016-05-17 2017-11-24 三進金属工業株式会社 Structure for fixing floor material

Also Published As

Publication number Publication date
KR20140040814A (en) 2014-04-03
US20140215960A1 (en) 2014-08-07
CN103688004A (en) 2014-03-26

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