EP0758427A1 - Profiled fence post made of polymer material - Google Patents
Profiled fence post made of polymer materialInfo
- Publication number
- EP0758427A1 EP0758427A1 EP95917247A EP95917247A EP0758427A1 EP 0758427 A1 EP0758427 A1 EP 0758427A1 EP 95917247 A EP95917247 A EP 95917247A EP 95917247 A EP95917247 A EP 95917247A EP 0758427 A1 EP0758427 A1 EP 0758427A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wires
- reinforcement
- post
- polymer material
- fence post
- 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
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
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/02—Wire fencing, e.g. made of wire mesh
- E04H17/06—Parts for wire fences
Definitions
- Such posts are implanted in the ground, and when a transverse force is exerted on the post, specifically the location where the post emerges from the ground is subject to a large bending moment.
- the posts are usually tubular, or, in general: profiled. This means that the surface area of the useful cross-section (cross- section of the material) is maximally 30% of the surface area of the smallest possible circumscribed convex figure, as is the case with most tubular shapes, L-profiles, T-profiles and
- the necessary hardness can be obtained by cold deformation during the drawing of the wire from an initial diameter to the final diameter.
- the wire possesses a cold-drawn perlitic structure.
- this value is not obtainable without taking the special measure of starting the process with a relatively large initial diameter in order to be able to carry out a reduction to a final diameter that will produce the required amount of cold deformation and the resulting increase in the elartic limit. Therefore it is preferable to achieve the required hardness by means of oil hardening.
- wire with the final diameter is continuously led through a continuous furnace where it is heated to austenitiration temperature, and then upon exit from the continuous furnace it runs through an oil bath where it is quenched and thus obtains a hard martensitic structure, and thereupon is fed through a heating element where said structure is softened to a certain extent because the pure quenched structure is too brittle.
- Deviations from a strictly uniform distribution are also possible when one wants the post to offer more resistance against transverse forces in the plane perpendicular to the fence, it is then taken into account that part of the force distribution pattern is- still the standard pattern over the entire cross-section, with a pressure zone, a tensile zone and a neutral line running parallel with the fence. A distribution is therefore used which involves a greater concentration of wires far from the neutral line.
- Figure 4 in which the broken line 6 represents the neutral line and the broken line 2 once again represents a fence mesh.
- a different post profile can also be chosen, for example an I-profile, with the reinforcement wires more concentrated far from the neutral line ( Figure 5).
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wire Processing (AREA)
- Fencing (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Piles And Underground Anchors (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Ropes Or Cables (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9400465 | 1994-05-04 | ||
BE9400465A BE1008449A3 (en) | 1994-05-04 | 1994-05-04 | Shaped closure post of plastic. |
PCT/BE1995/000044 WO1995030815A1 (en) | 1994-05-04 | 1995-05-03 | Profiled fence post made of polymer material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0758427A1 true EP0758427A1 (en) | 1997-02-19 |
EP0758427B1 EP0758427B1 (en) | 2001-07-11 |
Family
ID=3888142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95917247A Expired - Lifetime EP0758427B1 (en) | 1994-05-04 | 1995-05-03 | Profiled fence post made of polymer material |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0758427B1 (en) |
AT (1) | ATE203084T1 (en) |
BE (1) | BE1008449A3 (en) |
CA (1) | CA2189228A1 (en) |
DE (1) | DE69521695T2 (en) |
ES (1) | ES2161287T3 (en) |
MX (1) | MX9605310A (en) |
PT (1) | PT758427E (en) |
WO (1) | WO1995030815A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011144482A1 (en) | 2010-05-18 | 2011-11-24 | Nv Bekaert Sa | Pvc reinforced composites |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2273143A1 (en) * | 1974-05-31 | 1975-12-26 | Thevenin Jean Marie | Extruded plastic cruciform section fence post - with reinforcement in each arm and adjustable fixing of wire |
NL8600065A (en) * | 1986-01-14 | 1987-08-03 | Bekaert Sa Nv | Plastic metal wire reinforced post to fit wire or wire mesh fence - has longitudinal external, pref. inwardly narrowing, rib to secure fencing wires pref. using deformable open c=shaped clamp brackets |
-
1994
- 1994-05-04 BE BE9400465A patent/BE1008449A3/en active
-
1995
- 1995-05-03 EP EP95917247A patent/EP0758427B1/en not_active Expired - Lifetime
- 1995-05-03 DE DE69521695T patent/DE69521695T2/en not_active Expired - Fee Related
- 1995-05-03 PT PT95917247T patent/PT758427E/en unknown
- 1995-05-03 ES ES95917247T patent/ES2161287T3/en not_active Expired - Lifetime
- 1995-05-03 MX MX9605310A patent/MX9605310A/en unknown
- 1995-05-03 WO PCT/BE1995/000044 patent/WO1995030815A1/en active IP Right Grant
- 1995-05-03 CA CA002189228A patent/CA2189228A1/en not_active Abandoned
- 1995-05-03 AT AT95917247T patent/ATE203084T1/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9530815A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011144482A1 (en) | 2010-05-18 | 2011-11-24 | Nv Bekaert Sa | Pvc reinforced composites |
Also Published As
Publication number | Publication date |
---|---|
DE69521695T2 (en) | 2001-10-25 |
ATE203084T1 (en) | 2001-07-15 |
MX9605310A (en) | 1997-12-31 |
CA2189228A1 (en) | 1995-11-16 |
PT758427E (en) | 2002-01-30 |
DE69521695D1 (en) | 2001-08-16 |
ES2161287T3 (en) | 2001-12-01 |
EP0758427B1 (en) | 2001-07-11 |
WO1995030815A1 (en) | 1995-11-16 |
BE1008449A3 (en) | 1996-05-07 |
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