WO2015009180A1

WO2015009180A1 - Method of connecting composite sections creating a lighting post jib and a jib created using this method

Info

Publication number: WO2015009180A1
Application number: PCT/PL2014/050022
Authority: WO
Inventors: Marcin ŁAWSKI
Original assignee: Geger Sp. Z O. O.
Priority date: 2013-06-22
Filing date: 2014-04-25
Publication date: 2015-01-22
Also published as: PL404396A1

Abstract

The subject of this invention is a method of connecting composite sections creating a lighting post jib, characterized in that a link (5) in the form of an elbow of proper bend angle is used to connect two consecutive composite sections (1) with the use of polymer bind (6) with a filler in the form of granulate of non-abrasive and highly rigid properties. The subject of this invention is also a composite lighting post jib produced with the application of the aforementioned method of connecting composite sections (1).

Description

Method of connecting composite sections creating a lighting post jib and a jib created using this method.

The subject of this invention is a method of connecting composite sections creating a lighting post jib and a composite jib created using this method, to be applied as a lighting post jib for installing a lamp on the post, at a specific distance and under a specific, pre-established angle.

The jibs which are currently used in street lighting installations are composed of pipes or other steel or aluminum sections, varnished, zinc- plated, painted or anodized.

Consequently, Polish patent description number PL 198464 Bl defines a light fixture jib consisting of several arms, one of which is connected to the head unit and the light fixture characterized in that the jib is equipped with a mounting bracket and a electric wire coating, whereas the mounting bracket is located at the end of the jib and is equipped with handles with mounting screw elements, and the second end of the ib is connected inseparably with the head unit, to which mounting screw elements are fixed.

Another Polish patent description number PL 198465 Bl presents an analogous solution applying screw elements to assemble particular elements, with the difference, however, that a mounting plate is applied instead of a mounting head unit.

Polish utility model description number PL 65496 Yl presents a steel pipe post intended for use primarily as a traffic light post, consisting of pipe elements mounted using screw clamp joints.

A Chinese patent application number CN 102192486 A defines a composite lighting post consisting of an external wall layer made of resin reinforced with continuous filament and an internal wall layer made of resin concrete, as well as an exterior bar arm made of resin reinforced with continuous filament.

A Chinese utility model description number CN 202371660 defines a composite, multifunctional, detachable, jointed bar for a lamp, consisting of a post arm equipped with a cylindrical opening and a lower, steel pipe, a central, steel pipe and an arm equipped with a pipe sleeve structure, whereas the steel pipes are connected using a screw sleeve.

Due to its widespread application, this field is in constant demand for new, more cost-efficient, simpler-to-construct, lighter, more resistant to weather conditions, easier-to-assemble, esthetic and long-performance lighting posts and lighting post jibs applying simpler methods of connecting particular post elements.

Therefore, it was the purpose of this invention to develop a method of connecting composite sections creating a lighting post jib, which would not require the use of additional jointing elements, which could raise the ultimate costs, or any specialized tools, and which was easy and quick to erect. The purpose of the invention was also to develop a composite lighting post jib, characterized by significantly smaller weight compared to conventionally applied solutions, which would not corrode, which would be resistant to the impact of weather conditions, which would involve lowered costs of assembly and use, and which would enable mounting on various types of lighting posts.

Therefore, the subject of this invention is a method of connecting composite sections creating a lighting post jib characterized in that two consecutive composite sections are jointed using an elbow of specific bend angle, which connects to the abovementioned sections using polymer bind with a filler in the form of granulate with non-abrasive and highly rigid properties, whereas the diameter of the joint referred to above is smaller than the diameter of the composite section, and the joint is internally installed, or its diameter is bigger than the diameter of the composite section, and is then externally installed.

In an advantageous embodiment, the composite section is produced using the pultrusion method, or is formed manually out of fiberglass, basalt fiber, aramid fiber and carbon fiber, as well as natural fibers or other synthetic, mineral and organic fibers, applying polyester, epoxy, vinylester, polyurethane, polyurea and other resin matrices.

In an advantageous embodiment, the structure utilizes a link produced out of metal, such as steel, aluminum, etc., formed though plastic working or bending, or through jointing two elements which were previously cut at a specific angle, using the welding technique.

Alternatively, the link is made of thermoplastic formed through plastic work or of composite basing on mineral or synthetic fibers molded in a resin matrix, shaped by joining two elements which were previously cut at the right angle using proper adhesive or a polymer bind.

In an advantageous embodiment, metal granulate or mineral granulate composed of such materials as basalt, granite, corundum, etc. of 0.01 to 1.0 mm in granulation will be used as the polymer bind fill.

In an advantageous embodiment, the joint area between two consecutive composite sections and uneven contacts are additionally reinforced and finished with composite tape, fabric or mass saturated with resin and filaments, by wrapping around the joint or contact, and then polishing and covering with a protective-decorative paint and/or varnish coat.

Furthermore, the subject of this invention is a lighting post jib equipped with at least one exterior arm, and consisting of at least two sections made of composite material, characterized in that the sections referred to above are jointed using an elbow of specific bend angle, which connects to the abovementioned sections using polymer bind with a filler in the form of granulate with non-abrasive and highly rigid properties, whereas the diameter of the joint referred to above is smaller than the diameter of the composite section, and the joint is internally installed, or its diameter is bigger than the diameter of the composite section, and is then externally installed.

In an advantageous embodiment, the jib produced according to this invention contains a link which is made of metal, such as steel, aluminum, etc., formed though plastic working or bending, or through jointing two elements which were previously cut at a specific angle, using the welding technique.

In an advantageous embodiment, metal granulate or mineral granulate composed of such materials as basalt, granite, corundum, etc. of 0.01 to 1.0 mm in granulation will be used to fill the jib.

In an advantageous embodiment, the joint area between two consecutive composite sections and uneven contacts are additionally reinforced and finished with composite tape, fabric or mass saturated with resin and

fiber, by wrapping around the joint or contact, and then polishing and covering with a protective-decorative paint and/or varnish coat.

In an advantageous embodiment, the jib produced according to this invention is made of transparent materials and contains LEDs or other sources of light installed inside.

In an advantageous embodiment, the jib produced according to this invention contains composite sections filled with rigid foam, such as polyurethane foam PUR and containing additional sections on the inside, which form a cable tray. In an advantageous embodiment, the end of the exterior arm of the jib produced according to this invention contains a mounting bracket for a light fixture, made of metal or composite basing on mineral or synthetic fibers molded in a resin matrix.

In an advantageous embodiment, the jib produced according to this invention contains an additional link made of metal or composite on the basis of mineral or synthetic fibers molded in a resin matrix, used to link and reinforce at least two exterior arms of the jib.

In an advantageous embodiment, the jib produced according to this invention is mounted on a lighting post using two standard handles and brackets, or using a mounting head unit made of composite material, metal, polymer concrete, etc., which is additionally reinforced with a pipe-link made of metal or composite on the basis of mineral or synthetic fibers molded in a resin matrix, placed in the center of the head unit, reinforcing and centering the position of the jib, or using polymer bind.

The subject of this invention is a composite jib made of composite material in the form of a pipe or a section in another shape, and the technology of their permanent connection at an angle. A jib produced according to this invention is characterized by significantly lower weight, as compared to conventionally applied solutions, does not corrode and is resistant to the impact of weather conditions, which has beneficial effect on the costs of its assembly and use. The composite jib may be installed on posts of all types, for instance on composite, steel, wooden, concrete, or aluminum posts. In the case of conventional jibs made of metal, these undergo plastic work and are shaped by bending. In the case of composite jibs, thermal work and forming through bending technique is not available due to the fact that fiber composite products do not display plastic properties, but are characterized by high flexibility. Further to the above, this application also specifies a method of jointing consecutive elements of the jib, consisting in, for instance, a composite pipe produced using the pultrusion method and a prepared link - a metal (steel, aluminum or other) elbow formed through plastic work, bending or by jointing two elements which were earlier cut at the right angle, using the welding technique, or the link is made of thermoplastic formed through plastic work or of composite on the basis of mineral or synthetic fibers molded in a resin matrix, formed by jointing two elements which were earlier cut at the right angle, using the adhesive technique applying a polymer bind. A link produced this way is used to connect to a pipe or another section of the jib using adhesive bind with a fill in the form of metal or mineral granulate of non-abrasive and highly rigid properties (basalt, granite, corundum and other) of 0.01 to 1.0 mm in granulation, in order to produce adequate mechanic adhesion of the joint. The following composite pipes are properly cut at a pre-designed angle and then jointed using any number of metal links and adhesive bind (as specified above), depending on the design and desired effects. In addition, the joint area and uneven connections may be reinforced and finished with a layer of tape, fabric or composite mass saturated with resin and fibers, by wrapping around the joint. After that, the joint may be polished and covered with a protective-decorative paint and/or varnish coat.

A link produced this way may be installed internally in the pipe or in another section, or externally, depending on the material used and the anticipated durability and esthetic results. The composite jib may be installed on a stub pipe used to assemble light fixtures, equipped with an additional sleeve made of metal or another material, applied permanently on the end of the stub pipe, on the inside or on the outside, for the purpose of reducing its diameter to the diameter of the light fixture bracket, the length and diameter of which would correspond to the type of light fixture used.

The composite jib may be formed out of fiber and resin, which would provide a transparent appearance, either partial or complete, which, in result, would allow for installing LEDs or other sources of light in the form of e.g. a LED hose inside such jib in order to produce a complex decorative and lighting effect.

In order to produce the desired structural rigidity and durability effect, it is possible to apply thin-wall pipes or other composite sections with a fill in the form of polyurethane foam (PUR) or a rigid foam of a different type and a composite section mounted on the inside, serving as a cable tray, in the form of e.g. a PVC pipe for conducting electric wiring. The jibs may be installed as having one exterior arm, two exterior arms, three exterior arms, four exterior arms, etc.

A jib may be installed on a post using generally available brackets and mounts. It may also be installed using a dedicated stabilizing head unit made of composite, metal and cast polymer concrete materials with the ib applied through adhesion. A jib other than equipped with one exterior arm may be connected, for instance, in the center of its length, at straight sections, using a permanent link or a detachable link in order to join consecutive arms of the jib, which has beneficial effect on the stability and rigidity of the installation.

An example of a lighting post jib produced according to the invention is presented in figures, in which:

fig. 1 includes a schematic illustration of the structure of the lighting post jib produced according to the invention, as equipped with two exterior arms, viewed in a front projection, and detail A, the link, in enlargement,

fig. 2 includes a schematic illustration of the lighting post jib produced according to the invention, in a side projection, and detail B, a link in the form of elbow, in enlargement,

fig. 3 includes a schematic illustration of the structure of the lighting post jib produced according to the invention, as equipped with two exterior arms, viewed in a top projection, a stub pipe dedicated for mounting a light fixture to the jib, in cross-section, and a mounting head unit with a pipe-link, in longitudinal section,

fig. 4 includes a schematic illustration of the joint between consecutive pipe sections of the composite jib produced according to the invention, applying a link - elbow. The structure of the lighting post jib illustrated in fig. 1 and 3 is two-armed, consisting of 2 exterior arms made of pipe sections 1 made of composite material. Sections 1 of the jib are interconnected using link 5 in the form of an elbow of proper bend angle with the use of polymer bind 6 with filler in the form of granulate of non-abrasive and highly rigid properties. In addition, as illustrated in fig. 1, the exterior arms of the jib are interconnected using link 4, which, in this case, consists of 3 metal clamps (detail A) in order to ensure the proper rigidity and stability of the structure. The exterior arms o the jib are permanently mounted to head unit 2, which is used to set and mount the jib at the top of the post in order to ensure that it is mechanically fixed in a durable way, as to prevent the jib from moving in the course of its use. In addition, as displayed in fig. 3, the head unit is equipped with a pipe-link 7 serving as a reinforcing element to the mount of the jib at the top of the lighting post and centering the entire assembly on the post, and all elements are jointed with polymer bind 6 of adhesive - sealing properties. The end of every exterior arm of the ib is equipped with stub pipes in the form of terminal 3, which is used for mounting a light fixture to the jib.

Terminal 3 of lower diameter to the diameter of section 1 was mounted to the ending of section 1 of the jib using polymer bind 6 and bars 8 made of metal, in order to produce additional reinforcement and to adjust the diameter of terminal 3 to the light fixture mounting standard applied.

5 Fig. 4 illustrates a detailed method of connecting composite sections 1 creating the jib of a lighting post using a link - elbow 5 of a proper bend angle and smaller diameter, compared to the diameters of sections 1, in which both terminals of section 5 are slid onto the endings of sections 1, permanently jointed and sealed with polymer bind 6 with a filler in the form of granulate 10 of non-abrasive and highly rigid properties. Moreover, as clearly displayed in fig. 4b, the joint area between two consecutive composite sections 1 and uneven contacts are additionally reinforced with a finishing layer 9.

Claims

Patent claims

1. A method of jointing composite sections creating a lighting post jib, characterized in that a link (5) in the form of an elbow of proper bend angle is used to joint two consecutive composite sections (1), wherein the link (5) is connected to the said sections (1) using polymer bind (6) and a filler in the form of granulate of non-abrasive and highly rigid properties.

2. A method according to Claim 1 characterized in that the composite section (1) is produced using the pultrusion method, or is formed manually out of fiberglass, basalt fiber, aramid fiber and carbon fiber, as well as natural fibers or other synthetic, mineral and organic fibers, applying polyester, epoxy, vinylester, polyurethane, polyurea and other resin matrices.

3. A method according to Claim 1 or 2 characterized in that a link (5) which is made of metal, such as steel, aluminum, etc., formed though plastic working or bending, or through jointing two elements which were previously cut at a specific angle, using the welding technique is applied.

4. A method according to Claim 1 or 2 characterized in that a link (5) which is made of thermoplastic formed through plastic work or of composite basing on mineral or synthetic fibers molded in a resin matrix, shaped by joining two elements which were previously cut at the right angle using proper polymer bind (6) as adhesive is applied.

5. A method according to Claims 1-4 characterized in that metal granulate or mineral granulate composed of such materials as basalt, granite, corundum, etc. of 0.01 to 1.0 mm in granulation will be used as the polymer bind (6) fill.

6. A method according to any of the Claims 1-5 characterized in that the joint area between two consecutive composite sections (1) and uneven contacts are additionally reinforced and finished with tape, fabric or composite mass saturated with resin and filaments, by wrapping around the joint or contact, and then polishing and covering with a protective-decorative paint and/or varnish coat.

7. A lighting post jib equipped with at least one exterior arm and made of at least two composite sections, characterized in that the said sections (1) are interconnected using a link (5) in the form of an elbow of proper bend angle, which connects to the said sections (1) using polymer bind (6) with a filler in the form of granulate of non-abrasive and highly rigid properties.

8. A jib according to Claim 7 characterized in that the composite section (1) is produced using the pultrusion method, or is formed manually out of fiberglass, basalt fiber, aramid fiber and carbon fiber, as well as natural fibers or other synthetic, mineral and organic fibers, applying polyester, epoxy, vinylester, polyurethane, polyurea and other resin matrices.

9. A jib according to Claim 7 or 8 characterized in that the link (5) is made of metal, such as steel, aluminum, etc., formed though plastic working or bending, or through jointing two elements which were previously cut at a specific angle, using the welding technique.

10. A jib according to Claim 7 or 8 characterized in that the link (5) is made of thermoplastic formed through plastic work or of composite basing on mineral or synthetic fibers molded in a resin matrix, shaped by joining two elements which were previously cut at the right angle using proper polymer bind (6) as adhesive.

11. A jib according to any of the Claims 7-10 characterized in that metal granulate or mineral granulate composed of such materials as basalt, granite, corundum, etc. of 0.01 to 1.0 mm in granulation will be used as the polymer bind (6) fill.

12. A jib according to any of the Claims 7-11 characterized in that that the joint area between two consecutive composite sections (1) and uneven contacts are additionally reinforced and finished with tape, fabric or composite mass saturated with resin and filaments, by wrapping around the joint or contact, and then polishing and covering with a protective-decorative paint and/or varnish coat.

13. A jib according to any of the Claims 7-12 characterized in that it is made of transparent materials and is equipped with LEDs or other sources of light installed on the inside.

14. A jib according to any of the Claims 7-13 characterized in that it contains composite sections (1) filled with rigid foam, such as polyurethane foam PUR and containing additional sections on the inside, which form a cable tray.

15. A jib according to any of the Claims 7-14 characterized in that the end of the exterior arm contains a mounting bracket (3) for a light fixture, made of metal or composite basing on mineral or synthetic fibers molded in a resin matrix.

16. A jib according to any of the Claims 7-15 characterized in that it contains an additional link (4) made of metal or composite on the basis of mineral or synthetic fibers molded in a resin matrix, used to link and reinforce at least two exterior arms of the jib.

17. A jib according to any of the Claims 7-15 characterized in that it is mounted on a lighting post using standard handles and brackets, or using a mounting head unit (2) made of composite material, metal, polymer concrete, etc., which is additionally reinforced with a pipe-link (7) made of metal or composite on the basis of mineral or synthetic fibers molded in a resin matrix, placed in the center of the head unit, reinforcing and centering the position of the jib, or using polymer bind (6)·