EP2348168A1 - Lampadaire - Google Patents
Lampadaire Download PDFInfo
- Publication number
- EP2348168A1 EP2348168A1 EP10172729A EP10172729A EP2348168A1 EP 2348168 A1 EP2348168 A1 EP 2348168A1 EP 10172729 A EP10172729 A EP 10172729A EP 10172729 A EP10172729 A EP 10172729A EP 2348168 A1 EP2348168 A1 EP 2348168A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- post
- lamppost
- lamppost according
- plastic
- luminaire
- 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.)
- Withdrawn
Links
- 239000004033 plastic Substances 0.000 claims abstract description 24
- 229920003023 plastic Polymers 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000007423 decrease Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
Definitions
- the present invention relates to a lamppost comprising an elongated hollow post which is provided with a luminaire at one end.
- Lampposts form part of a familiar street scene.
- Lampposts exist in various forms and sizes.
- Known lampposts comprise a tube of aluminium, (stainless) steel, wood or a composite material, through which wiring extends from the bottom end, or through an opening in the circumferential wall near the bottom end, to the luminaire at the upper end of the post.
- the tube of a lamppost must furthermore meet certain requirements relating to resistance against weather influences and safety in case a road user should collide with the lamppost. Said requirements may vary per region, but they will invariably relate to stiffness and elasticity, among other characteristics.
- the post of the lamppost is mainly made of plastic material.
- plastics in particular thermoplastics, are readily recyclable an have significant advantages over the materials used so far, such as a good recyclability, no residual waste, a relatively low specific weight, no need for surface treatment, little maintenance and a relatively low burden on the environment upon production thereof.
- a plastic post has a relatively long life, as a result of which not only the total burden on the environment, but also the periodic burden on the environment is very low.
- a drawback of plastic is that a plastic post has a relatively low strength.
- the inventor has come to the conclusion that this drawback can be overcome whilst retaining the aforesaid advantages by a suitable design and by the use of relatively more material.
- the lamppost according to the invention will therefore be wider than known lampposts. The object of the present invention is thus accomplished.
- the post is mainly made of a thermoplastic plastic.
- Thermoplastic material is relatively easy to process, for example extrude, and is relatively easy to melt, also after use, for subsequent recycling.
- the plastic preferably comprises material from the group consisting of ABS, PP and EP. Said materials are not only relatively easy to process, but in the end product they exhibit a suitable combination of properties for use as a lamppost. Besides the aforesaid plastics, also other plastics may be present in a blend that may be used.
- the plastic mainly comprises recycled plastic material.
- a recycled plastic may mainly comprise ABS, PP and/or EP. The presence of any other materials or a so-called residual fraction cannot always be excluded when a recycled basic material is used.
- the stiffness of the material is increased. This makes it possible to manufacture a post while using less material than in the case of a post made of comparable plastic that does not comprise any fibres.
- the phrase "randomly distributed fibres" is understood to mean that the fibres used for producing the post are incorporated in the melt, in contrast to a composite material, in which fibre mats are used. Composites are hardly recyclable, if at all.
- the post may also be stiffened by means of a metal tube.
- the metal tube may form the inner wall of the post, but its inner wall and outer wall may also be coated with the plastic.
- the length of the post is preferably at least 300 cm.
- the luminaire is disposed at an attractive height for irradiating an area.
- the outer circumference of the post has the shape of a polygon.
- the polygon may be a quadrangle, a pentagon, a hexagon, an octagon or a dodecagon, for example, without excluding other polygons.
- the post may also have a circular outer circumference, but a polygon gives the post a higher resistance against ambient conditions, for example against bending upon prolonged exposure to sunlight. As a rule, however, a circular post will need to have a relatively thicker wall than a polygonal post in order to realise the same specifications.
- the outer circumference of the post decreases in the direction of the luminaire, i.e. upwards in the installed condition.
- the post In the lower part the post must take up large forces than in the upper part.
- the upper part of the post can be of lighter construction than the lower part.
- One way of realising this is to reduce the outer circumference of the post.
- the inner circumference of the post is substantially constant.
- the strength of the post decreases approximately uniformly in upward direction, which corresponds to the lower required strength of the post.
- the luminaire may be mounted to the post via an extension bracket.
- a door is preferably provided in the circumferential wall.
- locking means are provided for locking the door.
- Said locking means may comprise a lock which can only be opened by means of a key.
- key is to be interpreted in the broadest sense of the word.
- the post 2 has been extruded from recycled ABS and has a height of 4.18 m, its outer circumference has a hexagonal cross-section over the entire height, as is shown in figures 2a and 3 , which are not drawn to scale.
- dotted lines indicate the inner wall of the post 2, which has a circular cross-section.
- the wall of the post 2 has a substantially constant thickness, seen in longitudinal direction. Because the inner circumference and the outer circumference have different shapes, the thickness of the wall in circumferential direction varies between 40 mm and 50 mm, as is shown in figures 2a, 2b and 3 .
- the width of the post 2 is 270 mm.
- the width of the cross-section is 150 mm, whilst a coupling sleeve 4 having a circular outer circumference with a diameter of 76 is provided for arranging the luminaire 3 around said coupling sleeve.
- the post 2 is installed in a ground surface 5.
- a cable hole 6 having a height of 150 mm and a width of 50 mm is provided in the wall of the post 2, through which cable hole an electric cable (not shown) is inserted into the hollow post 2 in use, in a manner which is known per se, which cable extends through the hollow post 2 for energizing the luminaire 3.
- a maintenance hole 8 is provided at an attractive working height, which hole is closed by means of a door 7.
- Figures 2a and 2b show two cross-sectional views, not to scale, of two alternative embodiments of a post 2 according to figure 1 , at the level of the cable hole 6, in which the post 2 of figure 2a has a substantially constant wall thickness (corresponding to the inner wall shown in dotted lines in figure 1 ) and the post of figure 2b has an inner wall with a constant internal diameter (in contrast to the inner wall of figure 1 ). Because this is a sectional view from below, the internal circumference of the coupling sleeve 4 is visible through the hollow post 2.
- Figure 3 is a cross-sectional view of the upper side of the post 2 of figure 1 .
- the dimensions of the wall thickness substantially correspond to those of the post 2 of figure 2a .
- the post 2 can be produced in a simple manner conventional to those of average skill in the art by extrusion of hollow elongated objects.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1037644A NL1037644C2 (nl) | 2010-01-22 | 2010-01-22 | Lichtmast. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2348168A1 true EP2348168A1 (fr) | 2011-07-27 |
Family
ID=42782120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10172729A Withdrawn EP2348168A1 (fr) | 2010-01-22 | 2010-08-13 | Lampadaire |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2348168A1 (fr) |
| NL (1) | NL1037644C2 (fr) |
| WO (1) | WO2011090380A1 (fr) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2227661A1 (de) * | 1972-06-07 | 1973-12-20 | Manfred Wolf | Aufstellpfosten, insbesondere zum aufstellen von verkehrsschildern und strassennamensschildern |
| US3853418A (en) * | 1973-02-28 | 1974-12-10 | Celanese Corp | Safety support for use adjacent a vehicular trafficway |
| DE2627498A1 (de) * | 1976-06-18 | 1977-12-29 | Alcoa Nederland Bv | Lichtmast |
| DE2722460A1 (de) * | 1977-05-18 | 1978-11-23 | Pfleiderer Fa G A | Mast, vorzugsweise aus kunststoff, zur aufnahme einer leuchte |
| EP0605914A1 (fr) * | 1992-12-10 | 1994-07-13 | Lankhorst Recycling B.V. | Article allongé ayant un noyau et une peau fabriqué en matière thermoplastique synthétique, et procédé et dispositif pour fabriquer de tels articles |
| US20030219561A1 (en) * | 2002-05-22 | 2003-11-27 | Gkm And Associates, Llc | Composite utility poles |
| US20050111913A1 (en) * | 2003-11-26 | 2005-05-26 | Riker Ronald D. | Signpost formed of recycled material |
| WO2005082612A2 (fr) * | 2004-01-29 | 2005-09-09 | Olivier Bioulac | Poteaux en materiau composite a base de bois, procede de fabrication et applications |
| WO2007136676A2 (fr) * | 2006-05-18 | 2007-11-29 | Williams Donald S | Structures de service public pultrudées |
-
2010
- 2010-01-22 NL NL1037644A patent/NL1037644C2/nl not_active IP Right Cessation
- 2010-08-13 EP EP10172729A patent/EP2348168A1/fr not_active Withdrawn
-
2011
- 2011-01-21 WO PCT/NL2011/050037 patent/WO2011090380A1/fr not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2227661A1 (de) * | 1972-06-07 | 1973-12-20 | Manfred Wolf | Aufstellpfosten, insbesondere zum aufstellen von verkehrsschildern und strassennamensschildern |
| US3853418A (en) * | 1973-02-28 | 1974-12-10 | Celanese Corp | Safety support for use adjacent a vehicular trafficway |
| DE2627498A1 (de) * | 1976-06-18 | 1977-12-29 | Alcoa Nederland Bv | Lichtmast |
| DE2722460A1 (de) * | 1977-05-18 | 1978-11-23 | Pfleiderer Fa G A | Mast, vorzugsweise aus kunststoff, zur aufnahme einer leuchte |
| EP0605914A1 (fr) * | 1992-12-10 | 1994-07-13 | Lankhorst Recycling B.V. | Article allongé ayant un noyau et une peau fabriqué en matière thermoplastique synthétique, et procédé et dispositif pour fabriquer de tels articles |
| US20030219561A1 (en) * | 2002-05-22 | 2003-11-27 | Gkm And Associates, Llc | Composite utility poles |
| US20050111913A1 (en) * | 2003-11-26 | 2005-05-26 | Riker Ronald D. | Signpost formed of recycled material |
| WO2005082612A2 (fr) * | 2004-01-29 | 2005-09-09 | Olivier Bioulac | Poteaux en materiau composite a base de bois, procede de fabrication et applications |
| WO2007136676A2 (fr) * | 2006-05-18 | 2007-11-29 | Williams Donald S | Structures de service public pultrudées |
Also Published As
| Publication number | Publication date |
|---|---|
| NL1037644C2 (nl) | 2011-07-25 |
| WO2011090380A1 (fr) | 2011-07-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| AK | Designated contracting states |
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| AX | Request for extension of the european patent |
Extension state: BA ME RS |
|
| 17P | Request for examination filed |
Effective date: 20120127 |
|
| 17Q | First examination report despatched |
Effective date: 20160120 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20160802 |