GB2608432A - Impact absorbing device - Google Patents
Impact absorbing device Download PDFInfo
- Publication number
- GB2608432A GB2608432A GB2109536.9A GB202109536A GB2608432A GB 2608432 A GB2608432 A GB 2608432A GB 202109536 A GB202109536 A GB 202109536A GB 2608432 A GB2608432 A GB 2608432A
- Authority
- GB
- United Kingdom
- Prior art keywords
- portions
- impact absorbing
- absorbing device
- intermediate portion
- linked
- 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.)
- Pending
Links
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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Dampers (AREA)
Abstract
An impact absorbing device adapted to connect two external elements to one another, the device comprising a first portion 12’ and a second portion 18’, the first portion and second portion being linked via an intermediate portion 14’, 16’, with the first portion and second portion spaced apart at a distance from one another by the intermediate portion, wherein the first, second and intermediate portions are formed from a single sheet of material and the first and second portions are each linked to the intermediate portion via respective linear folds in the said sheet of material. The device can be used in curtain walling, roadside signs and external wall cladding with the external elements of these connected to the first or second portion of the connector.
Description
Impact absorbing device
Field of the invention
The present inventive concept relates to the filed of impact absorbing devices. The device disclosed can be used in a range of situations including but not limited to external cladding curtain wailing, roadside signage and others.
Summary of invention
The present inventive concept provides an impact absorbing device adapted to connect two external elements to one another, the device comprising a first portion and a second portion, the first portion and second portion being linked via an intermediate portion, with the first portion and second portion spaced apart at a distance from one another by the intermediate portion, wherein the first, second and intermediate portions are formed from a singe sheet of material and the first and second portions are each linked to the intermediate portion via respective linear folds in the said sheet of material.
Preferably, the materiai has ductile properties. -2 -
On impact, the device can absorb some kinetic energy by allowing the intermediate portion to be displaced, bringing the first and second portions closer together in a more controlled manner than if the first and second portions were held in a more rigid way.
This movement of portions closer together might be described as a controlled collapse in a ductile manner.
Preferably, the first portion, the second portion and the intermediate portion each comprise regions which are substantially planar, with the first and second portions arranged approximately parallel to one another and the intermediate portion arranged at an angle to the first and second portions. The first, intermediate and second portions could be described as forming a Loose "S" shape.
The intermediate portion may form an angle between with the second portion of approximately 60 degrees.
Preferably, the intermediate portion is less wide than the first and second portions. Preferably the first portion has a pair of first wings wherein the first portion extends width-wise beyond the intermediate portion either side of the fold between the first portion and the intermediate portion. Preferably the second portion has a pair of second wings wherein the second portion extends width-wise beyond the intermediate portion either side of the fold between the second portion and the intermediate portion.
The intermediate portion can be said to have two sides; so in the preferred arrangement described in the previously paragraph the two sides of the intermediate portion may be approximately perpendicular to the folds, and also to the wings of the first and second portions.
Preferably, at each end of the said folds there are indents. The presence of the said indents encourages folding of the portions relative to one another on impact, thus absorbing some kinetic energy and allowing the first and second portions to be brought closer together in a more controlled manner. The idents also reduce the risk of shearing. Shearing can undermine impact absorption and result instead in disintegration of the device. -3 -
One or both of the first or second portions may comprise means adapted to attach the said portion to an external element.
The first portion may have a rectangular or trapezoidal shape.
The device may further comprise a plate portion contiguous with the second portion, the plate portion being linked to the second portion via a further linear fold in the sheet of material.
The plate portion may comprise means adapted to attach the plate portion to an external element. The plate may further comprise a yet further linear fold in the sheet of material. Thus, in an envisaged arrangement the device may have a first portion, an intermediate portion, a second portion, a plate contiguous with the second portion with the plate having a further linear fold. In this arrangement the folds between the second portion, plate and further Linear fold may each be approximately right angles so that the second portion, plate and further linear fold form a region having approximately a U-shape cross-section.
A device of the present inventive concept may have two first, second and intermediate portions which have a plate portion in common between the respective second portions, formed from a single sheet. In other words, such a device has a first first portion linked to a first intermediate portion via a Linear fold in the sheet, the first intermediate portion is linked to a first second portion via a linear fold in the sheet, the first second portion is linked to a plate via a Linear fold in the sheet, with the plate in turn being linked to a second second portion via a linear fold in the sheet, the second intermediate portion linked to the second second portion via a linear fold in the sheet, and a second first portion linked to the second intermediate portion via a linear fold in the sheet Preferably, the folds between the respective second portions and the plate portion are each approximately right angles to form an approximately a U-shape cross-section.
The respective first portions of such a device may be arranged approximately in parallel with one another. The respective second portions of such a device may be arranged approximately in parallel with one another. The first portions and the second portions may also be arranged approximately in parallel with one another. Thus, the device may be substantially symmetrical in cross-section. The respective intermediate portions may -4 -form an angle between the intermediate portions and the second portions of approximately 60 degrees.
Specific configurations of the present inventive concept, such as sizes and materials, may be selected dependent on the environment in which a particular embodiment might be used.
For example, factors which could determine specific configurations might include: - serviceable loads to resist the expected static Loads and live Loads; - the number of devices within a wider system, and size of fixing rail or other support system attached to them; -structure/substrate the devices are fixed to in use; - the likely direction of impact; and - other project specifications (e.g. material type), etc. In one possible example such as for external cladding projected combined static Loads and Live loads might be at 2 kN/m2; the Likely direction of impact would be to the outside face; the device(s) might be attached to a steel structure faced with sheathing board.
That could Lead to a selection of Lightweight aluminium for the device(s) used. In such a exampLe the materiaL for the sheet of the device could be aluminium having a sheet With those exemplary specifications, the device is designed and tested to collapse at 4 kN.
In another possible example such as for curtain walling, projected combined static Loads and Live Loads might be at 2 kN/m2; the likeLy direction of impact would be to the inside face; reinforced concrete slab structure at increments with cast in anchor points. The sheet material could be stainless steel for Long Life corrosion resistance to concrete efflorescence and reduced thermal transmission. With those exemplary specifications, the device is designed and tested to collapse at 20 kN but retain integrity up to 50 kN.
Detailed description of the invention -5 -
Exemplary embodiments of the present inventive concept will now be described with reference to the accompanying drawings, in which: Figure 1 shows a perspective view of an exemplary embodiment of the present inventive concept; Figure 2 shows a different perspective view of the same exemplary embodiment of the present inventive concept, connected to external elements; Figure 3 shows a perspective view of a further exemplary embodiment of the present inventive concept; Figure 4 shows a plan view from above of the exemplary embodiment of Figure 3 shown in a starting state and in a post-impact state; In Figure 1, a device 10 having a first portion 12, and intermediate portion 14, a second portion 16 and a plate portion 18 formed from a single sheet of material. At each transition between respective portions (12, 14, 16, 18) are linear folds (20, 22, 24) so that the first portion 12 is linked to the intermediate portion 14 via a Linear fold 20, the intermediate portion 14 is linked to the second portion 16 via a linear fold 22 and the second portion 16 is linked to the plate portion 18 via a Linear fold 24. The first portion 12, the intermediate portion 14 and the second portion 16 form a Loose "5" shape.
The plate portion 18 has a further fold 26 formed therein so that the plate portion 18 forms a U-shaped cross-section. In practice in this exemplary embodiment the first portion 12 and the plate portion 18 also have means adapted to connect with respective external elements but these means are not shown here so as to aid clarity of the drawing.
The intermediate portion 14 is less wide than each of the first portion 12 and second portion 16. Thus the first portion 12 has a pair of first wings 28 and the second portion 16 has a pair of second wings 30 wherein the first portion 12 extends width-wise beyond the intermediate portion 14 either side of the fold 20 between the first portion 12 and the intermediate portion 14; the second portion 16 has a pair of second wings 30 wherein the second portion 16 extends width-wise beyond the intermediate portion 14 either side of the fold 22 between the second portion 16 and the intermediate portion 14. -6 -
At each end of the fold 20 between the first portion 12 and the intermediate portion 14 there are indents 32. At each end of the fold 22 between the second portion 16 and the intermediate portion 14 there are indents 34. The indents 32, 34 encourage folding of the first 12 and second 16 portions relative to one another on impact thus absorbing some kinetic energy and allowing the first 12 and second 16 portions to be brought closer together in a more controlled manner. The idents 32, 34 also reduce the risk of shearing on impact. Shearing can undermine impact absorption and result instead in disintegration of the device.
The first portion 12 may be connected to a first external element and the plate portion 18 may be connected to a second external element. For the most part in use, the two external elements are intended to remain in position with respect to one another so for most of the time the device 10 is intended to provide a good fixing means between these two external elements. In one envisaged example the first portion 12 may be connected to an item of cladding and the plate portion 18 may be connected to a support framework. If an impact is incident on the first external element in which the impact is in a direction approximately towards the plate portion 19, as indicated by the large arrows in Figure 1, the first portion 12 will exert a force on the intermediate portion 14 which will in turn exert a force on the second portion 16 and the folds in the material of the device 10 will provide for a relatively controlled displacement of the first portion 12 and the second portion 16 towards one another.
In Figure 2, the same exemplary embodiment of the device 10 is shown. To aid clarity not all of the elements of the device 10 are labelled in this drawing and the skilled reader will appreciate that the elements described with respect to Figure 1 are present nonetheless. The first portion 12 is connected to a first external element A by connection means (not shown) and the plate portion 18 is connected to a second element B by connection means comprising a hasp 36. The first external element A is a bracket supporting an item of cladding (not shown). The second external element B is a stanchion which forms part of a support framework.
In Figure 3 a device 10' has two first portions 12' each linked to respective intermediate portions 14' by folds 20'. The intermediate portions 14' are each linked to respective second portions 16' by folds 22'. The second portions 16' are Linked to respective ends 7 -of a single plate portion 18' by respective folds 24'. The plate 18' has holes 38' formed within it, as part of connection means adapted to connect to an external element.
The intermediate portions 14' are Less wide than each of the first portions 12' and second portions 16'. Thus the first portions 12' each have a pair of first wings 28' and the second portions 16' each have a pair of second wings 30' wherein the first portions 12' extend width-wise beyond the intermediate portions 14' either side of the folds 20' between the first portions 12' and the intermediate portions 14'; the second portions 16' each have a pair of second wings 30' wherein the second portions 16' extend width-wise beyond the intermediate portions 14' either side of the folds 22' between the second portions 16' and the intermediate portions 14'. At each end of the folds 20' between the first portions 12' and the intermediate portions 14' there are indents 32'. At each end of the folds 22' between the second portions 16' and the intermediate portions 14' there are indents 34'. At each end of the folds 24' between the second portions 16' and the plate portion 18' are indents 35'. The indents 32', 34', 35' encourage folding of the first 12' and second 16' portions relative to one another on impact, and the folding of the second portions 16' relative to the plate portion 18', thus absorbing some kinetic energy and allowing the first 12' and second 16' portions to be brought closer together in a more controlled manner. The idents 32', 34', 35' also reduce the risk of shearing on impact.
The skilled reader will appreciate that some instances of certain elements are not explicitly labelled to aid clarity in the drawing.
Turning to Figure 4, the device 10' of Figure 3 is shown in plan view. Many of the labels are not including in Figure 4 to aid clarity. In a starting state the device 10' is shown with the angle a between the intermediate portions 14' and the second portions 16' being about 60 degrees. An external element A is shown connected to both of the first portions 12'.
When an impact (shown as a large arrow in Figure 4) is incident on the external element A the force of the impact pushes the external element in the direction of the arrow. The first portions 12' are thus moved towards the plate portion 18'. As the first portions 12' move in that way, the folds 20' between the first portions 12' and intermediate portions 14' and folds 22' between the intermediate portions 14' and the second portions 16' -8 -allow that movement to be controlled. The indents (not Labelled) prevent shearing during this movement After impact the device 10' ends up in a post-impact state (as shown in fainter lines) with the angle between the intermediate portions 14' and the second portions 16' increased significantly to take account of the movement. The second portions 16' have flared outwardly to accommodate the movement. -9 -
Claims (11)
- Claims 1. An impact absorbing device adapted to connect two external elements to one another, the device comprising a first portion and a second portion, the first portion and second portion being linked via an intermediate portion, with the first portion and second portion spaced apart at a distance from one another by the intermediate portion, wherein the first, second and intermediate portions are formed from a single sheet of material and the first and second portions are each linked to the intermediate portion via respective linear folds in the said sheet of material.
- 2. An impact absorbing device according to claim 1, wherein the material has ductile properties.
- 3. An impact absorbing device according to claim 1 or claim 2, wherein the first portion, the second portion and the intermediate portion each comprise regions which are substantially planar, with the first and second portions arranged approximately parallel to one another and the intermediate portion arranged at an angle to the first and second portions. T
- 4. An impact absorbing device according to any preceding claim, wherein the intermediate portion forms an angle between with the second portion of approximately 60 degrees.
- 5. An impact absorbing device according to any preceding claim, wherein the intermediate portion is less wide than the first and second portions.
- 6. An impact absorbing device according to claim 5, wherein the first portion has a pair of first wings wherein the first portion extends width-wise beyond the intermediate portion either side of the fold between the first portion and the intermediate portion.
- 7. An impact absorbing device according to claim 5 or claim 6, wherein the second portion has a pair of second wings wherein the second portion extends width-wise beyond the intermediate portion either side of the fold between the second portion and the intermediate portion.
- 8. An impact absorbing device according to any preceding claim, wherein at each end of the said folds there are indents.-10 -
- 9. An impact absorbing device according to any preceding claim, wherein the device further comprises a plate portion contiguous with the second portion, the plate portion being linked to the second portion via a further linear fold in the sheet of material.
- 10. An impact absorbing device according to any preceding claim, having two first, second and intermediate portions which have a plate portion in common between the respective second portions, formed from a single sheet
- 11. An impact absorbing device according to claim 10, wherein the folds between the respective second portions and the plate portion are each approximately right angles to form an approximately a U-shape cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2109536.9A GB2608432A (en) | 2021-07-01 | 2021-07-01 | Impact absorbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2109536.9A GB2608432A (en) | 2021-07-01 | 2021-07-01 | Impact absorbing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202109536D0 GB202109536D0 (en) | 2021-08-18 |
| GB2608432A true GB2608432A (en) | 2023-01-04 |
Family
ID=77274464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2109536.9A Pending GB2608432A (en) | 2021-07-01 | 2021-07-01 | Impact absorbing device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2608432A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6015238A (en) * | 1983-07-05 | 1985-01-25 | Toyoda Gosei Co Ltd | Shock energy absorbing structural body |
| WO2006036065A1 (en) * | 2004-09-27 | 2006-04-06 | Norsk Hydro Asa | Energy absorbing member and method for making an energy absorbing member |
| JP2006205806A (en) * | 2005-01-26 | 2006-08-10 | Toyota Motor Corp | Impact-absorbing structure for fender section |
| ES2397894A2 (en) * | 2011-04-20 | 2013-03-12 | Juan Jose Maria Gonzalez Uriarte | Elastoplastic shock absorber for vehicle containment systems and containment system including it (Machine-translation by Google Translate, not legally binding) |
| DE102013105155A1 (en) * | 2013-05-21 | 2014-11-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | deformation element |
| US9421990B2 (en) * | 2013-12-09 | 2016-08-23 | Alstom Transportation Technologies | Damping device, in particular for a railroad vehicle coupling device |
-
2021
- 2021-07-01 GB GB2109536.9A patent/GB2608432A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6015238A (en) * | 1983-07-05 | 1985-01-25 | Toyoda Gosei Co Ltd | Shock energy absorbing structural body |
| WO2006036065A1 (en) * | 2004-09-27 | 2006-04-06 | Norsk Hydro Asa | Energy absorbing member and method for making an energy absorbing member |
| JP2006205806A (en) * | 2005-01-26 | 2006-08-10 | Toyota Motor Corp | Impact-absorbing structure for fender section |
| ES2397894A2 (en) * | 2011-04-20 | 2013-03-12 | Juan Jose Maria Gonzalez Uriarte | Elastoplastic shock absorber for vehicle containment systems and containment system including it (Machine-translation by Google Translate, not legally binding) |
| DE102013105155A1 (en) * | 2013-05-21 | 2014-11-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | deformation element |
| US9421990B2 (en) * | 2013-12-09 | 2016-08-23 | Alstom Transportation Technologies | Damping device, in particular for a railroad vehicle coupling device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB202109536D0 (en) | 2021-08-18 |
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