DK142958B - PROCEDURE FOR FIFTING A HOLY LIGHTING LIGHT MASTER - Google Patents

PROCEDURE FOR FIFTING A HOLY LIGHTING LIGHT MASTER Download PDF

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Publication number
DK142958B
DK142958B DK531772A DK531772A DK142958B DK 142958 B DK142958 B DK 142958B DK 531772 A DK531772 A DK 531772A DK 531772 A DK531772 A DK 531772A DK 142958 B DK142958 B DK 142958B
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DK
Denmark
Prior art keywords
mast
inner tube
illumination
fifting
holy
Prior art date
Application number
DK531772A
Other languages
Danish (da)
Other versions
DK142958C (en
Inventor
M J V Schijndel
L C Vulto
Original Assignee
Nedal N V
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nedal N V filed Critical Nedal N V
Publication of DK142958B publication Critical patent/DK142958B/en
Application granted granted Critical
Publication of DK142958C publication Critical patent/DK142958C/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15Making tubes of special shape; Making tube fittings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/003Access covers or locks therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/10Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10Outdoor lighting
    • F21W2131/103Outdoor lighting of streets or roads

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Description

i 142958in 142958

Opfindelsen angår en fremgangsmåde til at fremstille en hul belysningsmast af letmetal, som er forsynet med et indre let-metalrørstykke, der har i hovedsagen samme tværsnit som belysningsmasten og er anbragt i denne ud for en åbning, der giver 5 adgang til betjeningsgenstande. I kendte belysningsmaster af denne art indføres det indre rørstykke ved hjælp af en aksial kraft i den nedre ende af masten og fastgøres til væggen i nærheden af åbningen ved hjælp af nagler.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a method of producing a hollow light metal mast having an inner light metal tube piece having substantially the same cross-section as the illuminating mast and disposed therein for an opening providing access to controls. In prior art lighting masts of this kind, the inner tube is inserted by an axial force at the lower end of the mast and secured to the wall near the opening by nails.

I de fleste tilfælde har åbningen i den færdige mast til 10 formål at indelukke apparater, f.eks. enheder, der hører til belysningssystemet, såsom forbindelseskasser til elektriske ledninger i belysningsmasten og det indre rør.In most cases, the opening in the finished mast is intended to enclose apparatus, e.g. units belonging to the lighting system, such as junction boxes for electrical wiring in the lighting mast and inner tube.

Den kendte fremgangsmåde har visse ulemper, idet den kræver en lang række operationer til forstærkning af belysningsmasten, 15 fordi masten har en sådan svækkelse omkring åbningen, at visse påvirkninger såsom særlig tung belastning, f.eks. ved storm, store længder, særlig tunge lysarmaturer etc.yellers ville kunne overstige mastens bæreevne.The known method has certain disadvantages in that it requires a large number of operations to amplify the illumination mast, because the mast has such a weakening around the aperture that certain stresses such as a particularly heavy load, e.g. in storm, large lengths, especially heavy light fixtures, etc. otherwise could exceed the load bearing capacity of the mast.

Ved opfindelsen er anvist en fremgangsmåde, som ikke har de 20 nævnte ulemper.The invention provides a method which does not have the disadvantages mentioned.

I henhold til opfindelsen er fremgangsmåden kendetegnet ved, at det indre rørstykke med en ydre diameter, som er mindre end mastens indre diameter, indføres i belysningsmasten fra dennes ene ende og fastholdes på sin endelige plads, hvorefter rør-25 stykket ekspanderes radialt således, at strækgrænsen af rørstykkets materiale permanent overskrides i en sådan grad, at dets ydre mål efter ekspansionen er mindst det samme som belysningsmastens oprindelige indre mål, og den pågældende del af masten er deformeret inden for elasticitetsgrænsen. Ved denne 30 metode dannes der en stiv intim forbindelse på en meget simpel måde.According to the invention, the method is characterized in that the inner tube having an outer diameter smaller than the inner diameter of the mast is introduced into the illumination mast from its one end and held in its final position, whereupon the tube piece is expanded radially so that the stretch boundary of the pipe piece material is permanently exceeded to such an extent that its outer dimensions after expansion are at least the same as the original inner dimensions of the illumination mast and the relevant part of the mast is deformed within the elastic limit. With this method a rigid intimate connection is formed in a very simple way.

Da det indre rørstykke når en permanent endelig tilstand, og 2 142958 belysningsmastdelen kun deformeres inden for det elastiske område, vil denne del søge at genvinde den oprindelige form, og dette resulterer i et effektivt klemmetryk, som tilvejebringer den ønskede forbindelse med en permanent, fuldstændig overflade-5 kontakt mellem rørstykket og masten.As the inner tube reaches a permanent final state and the illumination mast portion only deforms within the elastic region, this portion will seek to regain its original shape, resulting in an effective clamping pressure which provides the desired connection with a permanent, complete surface contact between the pipe piece and the mast.

Da tværsnittet af belysningsmasten og det indre rørstykke, selv om det fortrinsvis er cirkulært, også kan være ovalt eller polygonalt, tales der om et indre og et ydre mål, hvormed der menes dimensionen af snittet.Since the cross-section of the illumination mast and the inner tube, although preferably circular, may also be oval or polygonal, an internal and an outer dimension by which the dimension of the cut is meant.

10 Ved fremgangsmåden ifølge opfindelsen kan man fremstille hule belysningsmaster af letmetal, som har stor højde, kan bære tunge armaturer, er meget modstandsdygtige mod stor vindbelastning, kan opfylde store sikkerhedskrav, har let vægt, ikke kræver nogen vedligeholdelse og kan fremstilles på simpel måde.10 In the method of the invention, hollow light metal hollow masts, which are high in height, can carry heavy fixtures, are highly resistant to high wind loads, can meet high safety requirements, have light weight, require no maintenance and can be manufactured in a simple manner.

15 En anden fordel er, at en mast fremstillet ved fremgangsmåden ifølge opfindelsen, på grund af den større styrke, kan fremstilles af tyndere materiale og med mindre diametre end kendte master.Another advantage is that a mast made by the method according to the invention, because of its greater strength, can be made of thinner material and with smaller diameters than known masts.

Et særligt fordelagtigt resultat opnås med en foretrukken ud-20 førelsesform for fremgangsmåden ifølge opfindelsen, hvor man til fremstilling af både belysningsmasten og det indre rørstykke anvender en aluminiumslegering, som kan forædles, og ..at materialet af det indre rørstykke forædles, men ikke ældes .før ekspansionen »og under ekspansionen-befinder sig i fasen 25 derimellem, medens materialet af belysningsmasten forædles før ekspansionen og ældes kunstigt.A particularly advantageous result is obtained with a preferred embodiment of the method according to the invention, in which both the illuminating mast and the inner tube are manufactured, which can be refined aluminum alloy, and that the material of the inner tube is refined but not aged. prior to the expansion and during the expansion are in phase 25 therebetween, while the material of the illumination mast is refined prior to the expansion and artificially aged.

. Denne foretrukne udførelsesform, som gør det muligt at benytte samme legering til masten og det indre rørstykke, idet . man tilpasser materialets tilstand til processen, er meget fordel-30 agtig økonomisk og frembringer en udmærket forbindelse.. This preferred embodiment allows the same alloy to be used for the mast and the inner tube section, as. adapting the state of the material to the process is very advantageous economically and produces an excellent compound.

I det følgende forklares opfindelsen under henvisning til tegningen , hvor 3 142958 fig. 1 viser et snit igennem en del af en belysningsmast under fremstillingen, fig. 2 en del af en belysningsmast set fra siden, fig. 3 det samme som fig. 2 fra en ændret udførelsesform og 5 fig. 4 en belysningsmast fremstillet ved fremgangsmåden ifølge opfindelsen set fra siden.The invention will now be described with reference to the accompanying drawings, in which: FIG. 1 shows a section through part of a lighting mast during manufacture; FIG. 2 is a side view of a part of a lighting mast; FIG. 3 the same as FIG. 2 from a modified embodiment; and FIG. 4 is a side view of a lighting mast made by the method according to the invention.

Ved en åbning 2 er et hult indre aluminiumsrørstykke indført i en hul aluminiumsmast 1, som har cirkulært tværsnit. Det indre rør er ekspanderet ved hjælp af en dorn 4, således at 10 efter ekspanderingen svarer dets ydre diameter til den oprindelige indre diameter af belysningsmasten. Gennem denne åbning kan driftsgenstande, såsom forbindelses-, omskifter- og relæenheder indføres i belysningsmasten og fastgøres i det indre rør. Disse genstande forbliver tilgængelige igennem den 15 nævnte åbning.At an aperture 2, a hollow inner piece of aluminum tube is inserted into a hollow aluminum mast 1 having a circular cross section. The inner tube is expanded by means of a mandrel 4, so that after expansion, its outer diameter corresponds to the original inner diameter of the illumination mast. Through this aperture, operating objects such as connecting, switching and relay units can be introduced into the illumination mast and secured to the inner tube. These objects remain accessible through said opening.

Ved bunden af fig. 1 kan det ses, at før en dorn 4 er blevet trukket gennem det indre rørstykke 3, er diameteren af den ydre væg 5 af det indre rørstykke mindre end diameteren af in-dervæggen 6 af belysningsmasten, således at det indre rørstykke 20 kan indføres i masten med spillerum. Efter ekspandering har det indre rørstykke fået en yderdiameter, som er den samme som den oprindelige inderdiameter af masten, og der er dannet en stram forbindelse. I nogle tilfælde er en større endelig ydre diameter af det indre rørstykke tilladt og/eller endog 25 ønskelig.At the bottom of FIG. 1, it can be seen that before a mandrel 4 has been pulled through the inner tube 3, the diameter of the outer wall 5 of the inner tube 6 is smaller than the diameter of the inner wall 6 of the illumination mast, so that the inner tube 20 can be inserted into the the mast with leeway. After expansion, the inner tube piece has an outer diameter which is the same as the original inner diameter of the mast and a tight connection is formed. In some cases, a larger final outer diameter of the inner tube is permitted and / or even desirable.

Både belysningsmasten og det indre rørstykke kan fremstilles af samme aluminiumslegering, som kan være forædlet. Det er imidlertid også muligt at arbejde med andre lette materialer eller med forskellige legeringer af et og samme materiale af-20 hængig af kravene og omstændighederne.Both the illumination mast and the inner tube can be made of the same aluminum alloy, which can be refined. However, it is also possible to work with other lightweight materials or with different alloys of one and the same material, depending on the requirements and circumstances.

142958 4142958 4

Fig. 2 viser en del af en færdig belysningsmast fremstillet ved fremgangsmåden ifølge opfindelsen. Åbningen i masten og åbningen i det indre rørstykke er fuldstændig identiske. Dette kan opnås ved at udforme begge åbningerne samtidig efter eks-5 pansionen af det indre rørstykke i en belysningsmast, f.eks.FIG. 2 shows part of a finished lighting mast made by the method according to the invention. The opening in the mast and the opening in the inner tube are completely identical. This can be achieved by designing both openings simultaneously after the expansion of the inner tube piece in a lighting mast, e.g.

ved.at udsave materialet. På den anden side kan åbningen 2 i belysningsmasten 1 være til stede allerede før indføringen og ekspansionen af det indre rørstykke, og efter ekspansionen kan en åbning fremstilles i det indre rørstykke, som over hele pe-10 riferien er noget mindre end åbningen i belysningsmasten, som vist i fig. 3. Herved dannes en kant, på hvilken et låg, der ikke er vist på tegningen, og som er indrettet til at blive anbragt i åbningen, kan bæres. På kendt måde kan låget bestå af den del, der tidligere er blevet fjernet fra belysningsma-15 sten under dannelsen af åbningen.by.saw the material. On the other hand, the aperture 2 in the illumination mast 1 may be present even before the insertion and expansion of the inner tube, and after the expansion an aperture can be made in the inner tube which is slightly smaller than the aperture in the illumination over the entire periphery. as shown in FIG. 3. Thereby an edge is formed on which a lid, not shown in the drawing, which is arranged to be placed in the opening, can be worn. In the known manner, the lid may consist of the part previously removed from the illumination pattern during the opening of the opening.

Til illustration af åbningens placering er fig. 4 en skematisk fremstilling af en belysningsmast 1, hvor den nedre og den øvre grænse for det indre rørstykke er vist med punkterede linier, og desuden er vist åbningen 2, der er forsynet med et låg. Ved 20 dens øvre ende er masten forsynet med et lysarmatur 8.To illustrate the location of the opening, FIG. 4 is a schematic representation of an illumination mast 1, in which the lower and upper limit of the inner pipe section are shown in dotted lines, and in addition the opening 2 is provided with a lid. At its upper end, the mast is provided with a light fixture 8.

Under ekspansionen er det muligt at holde den ydre form af belysningsmasten ved at klemme den pågældende del af masten ind i en passende form.During the expansion, it is possible to hold the outer shape of the illumination mast by squeezing that part of the mast into a suitable shape.

Et antal data fra et eksempel på udøvelse af opfindelsen gives 25 i det følgende.A number of data from an example of the practice of the invention are given below.

EksempelExample

En rund belysningsmast af aluminium har følgende dimensioner ved dens nedre ende ved en åbning, som fører ind til et rum, der indeholder betjeningsgenstande. Yderdiameteren af masten 30 er 114 mm og vægtykkelsen 2,5 mm, åbningen har en bredde på 90 mm og en længde på 400 mm.A circular aluminum lighting mast has the following dimensions at its lower end at an opening leading into a room containing controls. The outer diameter of the mast 30 is 114 mm and the wall thickness 2.5 mm, the opening has a width of 90 mm and a length of 400 mm.

DK531772A 1971-10-28 1972-10-26 PROCEDURE FOR MANUFACTURING A HOLY LIGHTING MIGHT OF LIGHT METAL DK142958C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7114828 1971-10-28
NL7114828A NL173248C (en) 1971-10-28 1971-10-28 METHOD FOR MANUFACTURING A HOLLOW ALLOY LIGHT TOWER.

Publications (2)

Publication Number Publication Date
DK142958B true DK142958B (en) 1981-03-02
DK142958C DK142958C (en) 1981-11-02

Family

ID=19814352

Family Applications (1)

Application Number Title Priority Date Filing Date
DK531772A DK142958C (en) 1971-10-28 1972-10-26 PROCEDURE FOR MANUFACTURING A HOLY LIGHTING MIGHT OF LIGHT METAL

Country Status (6)

Country Link
BE (1) BE790674A (en)
DE (1) DE2252675C2 (en)
DK (1) DK142958C (en)
GB (1) GB1413334A (en)
NL (1) NL173248C (en)
SE (1) SE392742B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE863237A (en) * 1977-02-01 1978-07-24 Ugine Kuhlmann CATALYTIC EPOXIDATION PROCESS OF OLEFINS
NL8102558A (en) * 1981-05-25 1982-12-16 Alcoa Nederland Bv LIGHT POLE WITH REINFORCEMENT OF THE OPENING IN THE LOWER PART.
US5871140A (en) * 1993-08-16 1999-02-16 Mccrink; Edward J. Hollow shaft and method of making same
GB2320213B (en) * 1996-12-11 1999-04-14 Oliver Murphy A lamp post manufacturing process and apparatus
DE29719209U1 (en) * 1997-10-30 1998-02-12 Franke GmbH & Co KG, 99326 Stadtilm Tubular steel mast
NL1009234C2 (en) * 1998-05-20 1999-11-25 Alcoa Nederland Bv Mast, preferably for use as light or flag mast, comprises tubular body, preferably of aluminum, in which is located access opening closed by hatch lockable in relation to body
NL1026416C2 (en) 2004-06-14 2005-12-15 Alcoa Nederland Bv Reinforced mast.
EP2246504B1 (en) * 2009-04-27 2013-09-18 Europoles Sp. z.o.o. Conical mast
EP3342961B1 (en) 2016-12-30 2020-01-29 Rosa, Stanislaw Lamp post

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR710611A (en) * 1931-02-05 1931-08-27 Method of fixing a tube in a collar

Also Published As

Publication number Publication date
DE2252675A1 (en) 1973-05-03
DK142958C (en) 1981-11-02
SE392742B (en) 1977-04-18
NL7114828A (en) 1973-05-02
BE790674A (en) 1973-04-27
NL173248C (en) 1984-01-02
DE2252675C2 (en) 1985-05-30
GB1413334A (en) 1975-11-12
NL173248B (en) 1983-08-01

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