WO2003004801A1 - A pole - Google Patents
A pole Download PDFInfo
- Publication number
- WO2003004801A1 WO2003004801A1 PCT/FI2002/000599 FI0200599W WO03004801A1 WO 2003004801 A1 WO2003004801 A1 WO 2003004801A1 FI 0200599 W FI0200599 W FI 0200599W WO 03004801 A1 WO03004801 A1 WO 03004801A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- post
- belt
- belts
- outer shell
- post according
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
- E01F9/631—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection specially adapted for breaking, disengaging, collapsing or permanently deforming when deflected or displaced, e.g. by vehicle impact
Definitions
- the present invention relates to a post and particularly to a post that will not break in an uncontrolled manner should a vehicle collide with it.
- the conventional type of post is one that is assembled from one or several steel tubes. Wooden posts are also used to some extent, as are concrete posts.
- Some of the aforementioned drawbacks can be at least partially eliminated by using a post construction formed from various plastic materials, usually set in layers, so that in a collision the composite structure will break and thus cause considerably less damage to the vehicle than traditional posts.
- This construction works very well at lower speeds, but at higher speeds, despite its construction, the post tends to break in such a way that the post, which can be thrown into the air, may cause serious damage if it strikes the vehicle, those in it, or even other objects or people in the vicinity.
- the present invention is intended to solve the aforementioned problem, which also affects a post of a lighter plastic construction.
- the invention is therefore intended to create a post that will not break, and will also not bend dangerously on top of a vehicle colliding with it.
- Figure 1 shows a cross-section of one embodiment of the post according to the invention.
- Figure 2 shows a simplified cross-section of the principle of the construction of the lower end of the post according to the invention.
- the post 1 can comprise, for example, the type of construction shown in Figures 1 and 2.
- the post is particularly hollow, for reasons of weight and other properties.
- the hollow core is marked with the reference number 2.
- the outer shell can be formed of one or several layers of, for example, thermosetting plastic and/or thermoplastic.
- the construction can also include, as desired, reinforcing fibres - threads or similar.
- An especially preferred construction is created from an inner layer 3 of thermosetting plastic and an outer layer 4 of tough plastic material. As stated, if desired there can, of course, be a greater number of layers.
- the post 1 usually has a conical shape, tapering upwards either evenly or else in steps. However, nothing prevents the construction from having a uniform diameter from the bottom to the top. In addition to a round post, the construction can also have another shape, for example, square or polygonal, oval, etc. According to the basic idea of the invention, at least one, particularly two, but if necessary several principally belt-like devices 5 are attached to the construction of the post 1.
- One preferred manner is to attach to the construction, during manufacture of the post, for example, two belts 5 at opposite sides of the post's cross-section. A natural place for the belts 6 is then a position between the layers.
- the lamination process can be designed in such a way that, when the outer layer 4 is begun to be formed on top of the inner layer 3, the belts 5 are already attached in one way or another to the outer surface of the layer 3. This can be done especially by exploiting the materials used in the lamination.
- Figure 2 shows that the lower end of the post 1 is placed inside a suitable base 8.
- the base can be of any known, or up until now unknown type.
- the lower end of the post is suitably anchored into the base.
- the belts 5 are left to some extent longer than the post, so that part of the belt remains free over the end of the post. This part is turned into the hollow core 2 of the post and attached inside the post in the immediate vicinity of the lower end of the post, for example, using a screw 6 or similar. This is done to secure the attachment, which, it is true is already very reliable.
- a longer part of the belt 5 can be left outside the post and this part, which in Figure 2 is marked with the reference number 5' and a broken line, is attached, for example by means of a bolt, further up the post.
- This attachment can be, for example, at a point above that at which a vehicle would strike in a collision. It is entirely obvious that this safeguards the construction of the post at precisely the critical point.
- the extension 5' of the belt in no way needs to be one and the same belt that is placed between the layers, but can be a separate part of the belt or even a different belt. In such a case, one end of the separate extension is attached to the outer shell of the post 1 by means of the bolt 6 and the other end by means of the bolt 7.
- the belt 5 or similar must be made from an extremely strong material. Suitable belts for this purpose are nowadays manufactured industrially for many purposes. Belts are made, for example, for securing loads and many other purposes. Suitable alternatives for the purpose of the invention can be found from manufacturers' ranges. Often, the manufacturing material is polypropylene or polyester.
- the collision tests proved the functionally of the belts.
- the post remained unbroken and the risk of injury or death was significantly reduced.
- Another surprising aspect was the fact that, with the aid of the solution according to the invention, excellent results were obtained at all collision speeds. Thus, tests were carried out a speed of 35 km/h, at which the post was regularly able to completely stop a vehicle like a private car. Generally in a collision it is more than probable that the driver will receive neck injuries. In this case, the measurements showed that neck injury was not probable.
- Tests were also carried out at speeds of 70 km/h and 100 km/h.
- the collision reduced the speed of the vehicle relatively rapidly.
- the post according to the invention acted as a brake, reducing the speed of the vehicle rapidly, so that after the collision the vehicle continued to travel for only a few tens of metres and then stopped. This is of great significance in the events after a collision. There is also great significance in the fact that at this speed the vehicle could still be steered in all situations after the tests. Thus, damage to external parties will, in all probability, be avoided.
- the post At a speed of 100 km/h, the post usually broke, but its breaking point was very low.
- the force of the collision made the post slide along the structure of the vehicle, after which it dropped to the ground. Because, in practice a speed of 100 km/h is only reached outside built-up areas, behaviour of this kind will not cause substantial damage to the vehicle or to its driver/passengers, and for that reason is the best possible behaviour. At all of the test speeds, damage to the vehicle itself was relatively slight, except for the point of impact of the front of the vehicle, indicating that there was little risk to the driver/passenger in the collision.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Cyclones (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Saccharide Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Microwave Tubes (AREA)
- Impact Printers (AREA)
- Recrystallisation Techniques (AREA)
- Thin Film Transistor (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60233739T DE60233739D1 (en) | 2001-07-06 | 2002-07-03 | Mast |
AT02755034T ATE443191T1 (en) | 2001-07-06 | 2002-07-03 | MAST |
DK02755034.2T DK1415058T3 (en) | 2001-07-06 | 2002-07-03 | Mast |
EP02755034A EP1415058B1 (en) | 2001-07-06 | 2002-07-03 | A pole |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20011489A FI20011489A (en) | 2001-07-06 | 2001-07-06 | Pillar |
FI20011489 | 2001-07-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003004801A1 true WO2003004801A1 (en) | 2003-01-16 |
Family
ID=8561612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FI2002/000599 WO2003004801A1 (en) | 2001-07-06 | 2002-07-03 | A pole |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1415058B1 (en) |
AT (1) | ATE443191T1 (en) |
CY (1) | CY1109658T1 (en) |
DE (1) | DE60233739D1 (en) |
DK (1) | DK1415058T3 (en) |
ES (1) | ES2331910T3 (en) |
FI (1) | FI20011489A (en) |
PT (1) | PT1415058E (en) |
WO (1) | WO2003004801A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4196550A (en) * | 1977-11-09 | 1980-04-08 | Lars Svensson | Post |
DE4319140C1 (en) * | 1993-06-09 | 1994-09-01 | Schmalz Lutz Reinhard | Conical hollow mast consisting of plastic |
FI103736B (en) | 1997-10-30 | 1999-08-31 | Pro Mark Ct Oy | Pillars of laminate construction |
-
2001
- 2001-07-06 FI FI20011489A patent/FI20011489A/en not_active Application Discontinuation
-
2002
- 2002-07-03 EP EP02755034A patent/EP1415058B1/en not_active Expired - Lifetime
- 2002-07-03 WO PCT/FI2002/000599 patent/WO2003004801A1/en not_active Application Discontinuation
- 2002-07-03 DK DK02755034.2T patent/DK1415058T3/en active
- 2002-07-03 ES ES02755034T patent/ES2331910T3/en not_active Expired - Lifetime
- 2002-07-03 AT AT02755034T patent/ATE443191T1/en active
- 2002-07-03 DE DE60233739T patent/DE60233739D1/en not_active Expired - Lifetime
- 2002-07-03 PT PT02755034T patent/PT1415058E/en unknown
-
2009
- 2009-12-16 CY CY20091101306T patent/CY1109658T1/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4196550A (en) * | 1977-11-09 | 1980-04-08 | Lars Svensson | Post |
DE4319140C1 (en) * | 1993-06-09 | 1994-09-01 | Schmalz Lutz Reinhard | Conical hollow mast consisting of plastic |
FI103736B (en) | 1997-10-30 | 1999-08-31 | Pro Mark Ct Oy | Pillars of laminate construction |
Also Published As
Publication number | Publication date |
---|---|
CY1109658T1 (en) | 2014-08-13 |
FI20011489A0 (en) | 2001-07-06 |
DK1415058T3 (en) | 2010-01-18 |
DE60233739D1 (en) | 2009-10-29 |
EP1415058A1 (en) | 2004-05-06 |
FI20011489A (en) | 2003-01-07 |
EP1415058B1 (en) | 2009-09-16 |
ATE443191T1 (en) | 2009-10-15 |
ES2331910T3 (en) | 2010-01-20 |
PT1415058E (en) | 2009-11-19 |
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