GB2126270A - Clamping sheet material to an elongate support member - Google Patents
Clamping sheet material to an elongate support member Download PDFInfo
- Publication number
- GB2126270A GB2126270A GB08321041A GB8321041A GB2126270A GB 2126270 A GB2126270 A GB 2126270A GB 08321041 A GB08321041 A GB 08321041A GB 8321041 A GB8321041 A GB 8321041A GB 2126270 A GB2126270 A GB 2126270A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clip
- sheet material
- support member
- limb
- limbs
- 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
- 239000000463 material Substances 0.000 title claims abstract description 46
- 238000005452 bending Methods 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 6
- 238000012986 modification Methods 0.000 claims description 6
- 238000010348 incorporation Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 210000003414 extremity Anatomy 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 101150097977 arch-1 gene Proteins 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
- F16B5/0685—Joining sheets or plates to strips or bars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/20—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening
- F16B2/22—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material
- F16B2/24—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening of resilient material, e.g. rubbery material of metal
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
Sheet material 13, possibly corrugated, is clamped to an elongate support member 18, which supports the sheet material, by a resilient clip having first and second limbs extending in the same general direction as one another away from a bend 3 which joins them. A portion of the sheet material 13 and a portion of the support member 18 lie face to face between the limbs of the clip and are urged towards one another by pressure exerted on them by the limbs. The clip is claimed per se and may have, in a particular orientation of the clip, a first limb with a downturned part 10 at its end remote from the bend, the second limb being shorter and below the first limb. <IMAGE>
Description
SPECIFICATION
Clamping sheet material to an elongate support member
According to a first aspect of the invention there is provided an assembly comprising sheet material, an elongate support member for supporting the sheet material and a resilient clip clamping the sheet material to the support member, the clip having first and second limbs extending in the same general direction as one another away from a bend which joins them, a portion of the sheet material and a portion of the support member lying face to face between Ihe limbs and being urged towards one another by pressure exerted on them by the limbs.
The sheet material may be metallic and may be flat or corrugated. The clip may have been made by bending a bar of square or rectangular cross-section, the shape of cross-section preferably being substantially square or rectangular throughout the length of the bent bar, or by bending a piece of sheet material. The support member may be of rolled steel, for example of I, T or L cross-section or channel-shaped.
According to a second aspect of the invention, there is provided a clip which is suitable for use in an assembly according to the first aspect of the invention, the clip having, in one orientation of the clip, an upper first limb and, below it, a shorter lower second limb, the two limbs extending in the same general direction as one another away from a bend which joins them and there being a down-turned part at that end of the upper limb which is remote from the bend.
According to a third aspect of the invention, there is provided a clip which is suitable for use in an assembly according to the first aspect of the invention and has been made by bending a bar of rectangular cross-section so that, when placed in a particular position, a first portion of it, which extends over by far the greater part of the length of the clip, is straight and horizontal, the left-hand end of the first portion being adjoined by a second portion which extends downwardly and to the left, this being followed by a third portion which extends downwardly, then a fourth portion which extends downwardly and to the right, then a fifth portion which extends to the right, a sixth portion which extends upwardly and to the right, a seventh portion which extends to the right and an eighth portion which extends downwardly and to the right, the right-hand end of the first portion being adjoined by a ninth portion which extends downwardly and to the right, this being followed by a tenth portion which extends downwardly.
Examples in accordance with the invention are described below with reference to the accompanying drawings, in which: Figure 1 shows a side view of a clip,
Figures 2 and 3 show side views of two assemblies, each including the clip shown in Figure 1, an
I-beam and a sheet of corrugated steel,
Figures 4 to 6 show possible modifications of the clip shown in Figure 1, and
Figures 7 and 8 show an underneath plan view and an end view, respectively, of the clip.
The clip shown in Figure 1 has been made by bending a bar of resilient steel of rectangular crosssection, about 1 5 mm. wide and about 8 mm. thick. The cross-section is substantially rectangular over the whole length of the bent bar, although there are small and unavoidable departures from the truly rectangular cross-section, due to the bending process. The clip consists of two limbs A and B extending in the same general direction as one another (to the right, considering Figure 1) away from a bend C which joins them, the limb B being below the limb A and shorter than the limb A, with a down-turned part 10 at the end of the limb A which is remote from the bend C. In greater detail, when the clip is placed in the particular position in which it is illustrated, a first portion 1 of it, which is about 11 cm.
long and which extends over by far the greater part of the length (about 14.5 cm.) of the clip, is straight and horizontal, the left-hand end of the first portion being adjoined by a second portion 2 which extends downwardly and to the left, this being followed by a third portion 3 which extends downwardly, then a fourth portion 4 which extends downwardly and to the right, then a fifth portion 5 which extends to the right, a sixth portion 6 which extends upwardly and to the right, a seventh portion 7 which extends to the right and an eighth portion 8 which extends downwardly and to the right. The right-hand end of the first portion 1 is adjoined by a ninth portion 9 which extends downwardly and to the right, this being followed by a tenth portion 10 which extends downwardly.
Figure 2 shows the lower flange 11 of an I-beam which has a web 12 and an upper flange (not shown). The I-beam has been made by rolling steel and has been installed in a horizontal position.
Sheets of corrugated steel are to be supported by the I-beam and other I-beams. The drawing shows one of the ridges 1 3 of one of the sheets face to face with the outer face of the flange 11 of the I-beam.
The sheet steel is formed, in situ, with two holes 14 and 1 5 through the ridge, of which the hole 14 may be circular, square or rectangular, for example, whereas the hole 1 5 is elongate, its length direction being from left to right in Figure 2. The portion 10 of the clip is threaded downwardly through the hole 1 5 and then the clip is moved by hand to the left until the portion 7 of the clip encounters the flange 11 of the I-beam. Then, by hammer blows on the portion 3 of the clip or otherwise, the clip is driven further to the left, the portion 10 meanwhile scraping the under side of the ridge 13, until the portion 10 reaches the hole 14 and snaps into it, after which by engaging the material of the corrugated sheet at the right-hand side of the hole 14 it prevents the clip moving to the right.The limbs
A and B of the clip have now been forced further apart than they were previously and they press upon the sheet material and the flange of the I-beam, holding them in contact with one another. The part 1 of the clip lies wholly between the two flanks of the ridge 13 in the sheet material.
A possible modification is to secure the corrugated sheet material to the upper flange of the Ibeam and would be shown if Figure 2 were inverted. This construction is particularly advantageous in the case where the I-beam is installed above a roadway in a mine and the corrugated sheet is to be used to prevent pieces of rock, spoil or coal, or drops of water, falling on mine personnel on the roadway. In this case the clips can be inserted and driven by men who are already under the shelter afforded by the corrugated sheet material.
The portion 8 of the clip may be nearer the web 12 of the I-beam than it is shown in Figure 2 and the left-hand boundary of the hole 1 5 will then be further to the left and the portion 1 of the clip will be shorter.
Figure 3 shows an example in which, instead of there being two holes through the sheet material, on opposite sides of an area of that material which is pressed by the clip against the Beam, as in
Figure 2, there is on one side of that area a hole 1 4 through the sheet material and on the other side of that area an outer edge of the sheet material. The clip is passed over the edge of the sheet material with the outer edge of the sheet material between the limbs A and B and driven into a position in which its limbs are forced further apart and it urges the I-beam and the sheet material towards one another, this causing the portion 10 to snap into the hole 14. Figure 3 shows the corrugated sheet secured to the upper flange 18 of the I-beam.
It may be possible to dispense with the hole 14 in the assemblies shown in Figures 2 and 3 and to rely on the portion 10 (which may then be shorter than is shown in Figures 2 and 3) biting into the lower surface of the sheet material to prevent withdrawal movement of the clip. Then the portion 1 may be much shorter than in the illustrated cases.
Figure 4 shows a possible modification of the limb B of the clip; portions 28 and 1 6 engage the Ibeam and an arch 1 7 between them does not.
Figures 5 and 6 show possible modifications of the limb A. In neither case are there the portions 9 and 10. In the case of Figure 5, between two portions 20 and 21 which contact the sheet material there is a bowed portion 22 which does not. In the case of Figure 6 between portions 23, 24 and 25 which contact the sheet material there are bowed portions 26 and 27 which do not.
It is thought probable that in all clips in accordance with the third aspect of the invention the dimensions A to G (in mm.) will be not less than the minimum nor more than the maximum given below. Presently preferred dimensions are also indicated below.
Dimension Minimum Maximum Preferred
Al 80 160 117
BI 100 180 143
CI 7 12 9.5
D 12 20 16
E 6 10 8
F 20 50 33
G 3 20 9
Claims (12)
1. An assembly comprising sheet material, an elongate support member for supporting the sheet material and a resilient clip clamping the sheet material to the support member, the clip having first and second limbs extending in the same general direction as one another away from a bend which joins them, a portion of the sheet material and a portion of the support member lying face to face between the limbs and being urged towards one another by pressure exerted on them by the limbs.
2. An assembly according to claim 1 in which the clip has, in one orientation of the clip and before its incorporation in the assembly, an upper first limb and, below it, a shorter lower second limb, there being a down-turned part at that end of the first limb which is remote from the bend.
3. An assembly according to claim 2 in which there are two holes through the sheet material, on opposite sides of an area of the sheet material which is pressed by the clip against the support member, and said down-turned part has been threaded through one of the holes and, after driving of the clip into a position in which its limbs are forced further apart and it urges the support member and the sheet material towards one another, has snapped into the other hole.
4. An assembly according to claim 2 in which on one side of an area of the sheet material which is pressed by the clip against the support member there is an outer edge of the sheet material and on the opposite side of said area there is a hole through the sheet material, the clip having been passed over said outer edge of the sheet material, with the outer edge of the sheet material between said limbs, and driven into a position in which its limbs are forced further apart and it urges the support member and the sheet material towards one another, which causes said down-turned part to snap into said hole.
5. An assembly according to any one of claims 2 to 4 in which the sheet material is corrugated and the first limb of the clip lies wholly between the two flanks of a ridge in the sheet material.
6. An assembly according to any preceding claim in which the support member is an I-beam and the sheet material is held between the outer surface of one of its flanges and the first limb of the clip, the opposite face of the same flange being engaged by the second limb of the clip.
7. An assembly according to claim 1 in which one of the limbs or each of the limbs has two portions which engage the sheet material or the support member, the two portions being joined by a portion of the limb which engages neither the sheet material nor the support member.
8. An installation in a mine in which an assembly according to any preceding claim is above a roadway in the mine, the support member being a horizontal I-beam with an upper flange and a lower flange and the sheet material being above the upper flange and secured to it by the clip.
9. A clip which is suitable for use in an assembly according to any preceding claim, the clip having, in one orientation of the clip, an upper first limb and, below it, a shorter lower second limb, the two limbs extending in the same general direction as one another away from a bend which joins them and there being a down-turned part at that dnd of the first limb which is remote from tme bend.
10. A clip which is suitable for use in an assembly according to any one of claims 1 to 8 and has been made by bending a bar of rectangular cross-section so that, when placed in a particular position, a first portion of it, which extends over by far the greater part of the length of the clip, is straight and horizontal, the left-hand end of the first portion being adjoined by a second portion which extends downwardly and to the left, this being followed by a third portion which extends downwardly, then a fourth portion which extends downwardly and to the right, then a fifth portion which extends to the right, a sixth portion which extends upwardly and to the right, a seventh portion which extends to the right and an eighth portion which extends downwardly and to the right, the right-hand end of the first portion being adjoined by a ninth portion which extends downwardly and to the right, this being followed by a tenth portion which extends downwardly.
11. An assembly of sheet material, a support member and a clip, substantially as described above with reference to Figure 2 or Figure 5 of the accompanying drawings.
12. A clip substantially as described above with reference to Figures 1, 7 and 8 of the accompanying drawings, or with the modification according to Figure 4 and/or the modification according to Figure 5 or Figure 6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8222474 | 1982-08-04 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8321041D0 GB8321041D0 (en) | 1983-09-07 |
| GB2126270A true GB2126270A (en) | 1984-03-21 |
| GB2126270B GB2126270B (en) | 1985-10-30 |
Family
ID=10532105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08321041A Expired GB2126270B (en) | 1982-08-04 | 1983-08-04 | Clamping sheet material to an elongate support member |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE3327869A1 (en) |
| GB (1) | GB2126270B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB898717A (en) * | 1959-06-04 | 1962-06-14 | Hollybank Eng Co | Improvements in and relating to walling or roof support structures for mine roadways |
| GB2057539A (en) * | 1979-09-07 | 1981-04-01 | Markham & Co Ltd | Improvements in clamping elements |
| GB2058170A (en) * | 1979-09-07 | 1981-04-08 | Markham & Co Ltd | Improvements in or Relating to Roof Support Apparatus for Tunnels or Shafts |
-
1983
- 1983-08-02 DE DE19833327869 patent/DE3327869A1/en not_active Withdrawn
- 1983-08-04 GB GB08321041A patent/GB2126270B/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB898717A (en) * | 1959-06-04 | 1962-06-14 | Hollybank Eng Co | Improvements in and relating to walling or roof support structures for mine roadways |
| GB2057539A (en) * | 1979-09-07 | 1981-04-01 | Markham & Co Ltd | Improvements in clamping elements |
| GB2058170A (en) * | 1979-09-07 | 1981-04-08 | Markham & Co Ltd | Improvements in or Relating to Roof Support Apparatus for Tunnels or Shafts |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3327869A1 (en) | 1984-02-09 |
| GB2126270B (en) | 1985-10-30 |
| GB8321041D0 (en) | 1983-09-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19980804 |