DK9400283U3

DK9400283U3 - Lead to electric fence

Info

Publication number: DK9400283U3
Application number: DK9400283U
Authority: DK
Inventors: B Rtil Kristian
Original assignee: B Rtil Kristian
Priority date: 1994-07-18
Filing date: 1994-07-18
Publication date: 1995-11-10
Also published as: DE29511608U1

Description

DK 94 00283 U3DK 94 00283 U3

Den foreliggende opfindelse angår et led til el-hegn, hvilket led omfatter en stander og en svingarm, der er forsynet med en stav, der strækker sig udefter i stort set vandret retning fra svingarmen, hvilken svingarm er monteret på standeren og er beregnet til at svinge 5 omkring en stort set vertikal langsgående akse A.BACKGROUND OF THE INVENTION The present invention relates to a link for electric fencing, comprising a stand and a swing arm provided with a rod extending outward in substantially horizontal direction from the swing arm, which swing arm is mounted on the stand and is intended to pivot 5 about a substantially vertical longitudinal axis A.

US 2.605.565 beskriver et led af denne type. Leddet består af to sæt bøjler, der er fastgjort til hver sin pæl. Bøjlerne er forsynet med hængseltappe, og omkring disse tappe er trådøjer, som udgør en del af 10 selve det svingbare led, monteret. Tappene på bøjlerne forløber langs en linje, der danner en vinkel i forhold til vertikal retning, og når selve det svingbare led svinges bort fra sin ligevægtsstillig, vil den skrå orientering af tappene samt tyngdekraften medføre, at leddene vil finde tilbage til deres ligevægtsstilling.US 2,605,565 describes a joint of this type. The joint consists of two sets of hangers attached to each pole. The shackles are provided with hinge pins, and around these pins are wire eyes, which form part of the swivel joint itself, mounted. The pins on the shackles extend along a line forming an angle to the vertical direction, and when the pivotal joint itself is pivoted away from its equilibrium position, the oblique orientation of the pins and gravity will cause the joints to return to their equilibrium position.

1515

Dette led besidder imidlertid blandt andet den ulempe, at den pæl, som leddet er fastgjort til, skal være meget stabil, det vil sige i det mindste nedgravet, på grund af stor udhængende masse hidrørende fra leddet. Endvidere besidder leddet den ulempe, at en del af passageåb-20 ningen mellem de to pæle er blokeret af leddet. Endelig vil selve det svingbare led under svingning hæves fra en lav position til en højere position. Berøringspunktet mellem leddet og for eksempel en traktor, der passerer leddet, vil således ændres under svingningen.However, this joint has, among other things, the disadvantage that the pole to which the joint is attached must be very stable, that is, at least buried, due to the large pendent mass originating from the joint. Furthermore, the joint has the disadvantage that part of the passage opening between the two posts is blocked by the joint. Finally, the pivotable link itself during pivoting will be raised from a low position to a higher position. Thus, the point of contact between the joint and, for example, a tractor passing the joint will change during the swing.

25 Det er således formålet med den foreliggende opfindelse at tilvejebringe et led, der på en let og hurtig måde kan etableres i et el-hegn uden anvendelse af solide nedgravede pæle, samtidig med at leddet ikke optager unødig megen plads.It is thus the object of the present invention to provide a link which can be easily and quickly established in an electric fence without the use of solid buried piles, while not taking up too much space.

30 Dette formål opnås med et led, der er særpræget ved, at svingarmen er forsynet med et rørstykke, der er fastgjort i et punkt P på svingar men, og som er monteret på en lejepind, der strækker sig opefter fra standeren, at rørstykket er forsynet med en anlægsflade, der danner en vinkel α med den langsgående akse A, og at standeren er forsynet med 35 en modsvarende lejeflade, der tillige danner vinklen o med den langsgående akse A.30 This object is achieved with a link, characterized in that the swing arm is provided with a pipe piece fixed at a point P on the turns, and which is mounted on a bearing stick extending upwards from the stand, that the pipe piece is provided with an abutment surface which forms an angle α with the longitudinal axis A, and that the stand is provided with a corresponding bearing surface, which also forms the angle o with the longitudinal axis A.

Et led, der omfatter disse elementer, skaber en sikker anordning til brug ved åbning og lukning af led i et el-hegn. Leddet udmærker sig 2 DK 94 00283 U3 ved meget få bevægelige dele og ved at optage meget lidt plads.A joint comprising these elements creates a secure device for use in opening and closing joints in an electric fence. The joint is distinguished by very few moving parts and by taking up very little space.

Leddet ifølge opfindelsen har således kun to indbyrdes bevægelige elementer, henholdsvis rørstykket og standeren. Disse dele forløber langs den fællesΊangsgående akse A, der i en foretrukket udførelsesform er vertikal. Således optager leddet stort set ikke plads i horisontal retning.Thus, the joint according to the invention has only two mutually movable elements, respectively the pipe piece and the stand. These parts extend along the joint axis A, which in a preferred embodiment is vertical. Thus, the joint virtually does not take up space in the horizontal direction.

Anvendelsen af skrå lejeflader, der danner en vinkel med den langsgående akse, er medvirkende til at sikre svingarmens tilbagevenden til sin ligevægtsposition efter at have været svinget til side. Anvendelsen af et leje af denne type medfører flere fordele. For det første er konstruktionen mekanisk set meget driftsikker, idet lejet er beskyttet af fremmedlegemer, når svingarmen befinder sig i sin ligevægtsstilling. For det andet vil svingarmen, når den svinges til side, kun hæve sig et lille stykke afhængig af den vinkel, som de skrå lejeflader danner med den langsgående akse. Dette sikrer, at staven, der er monteret på svingarmen, bibeholder sin stort set vandrette orientering både i hvilepositionen og i en situation, hvor staven påvirkes og svinger til side.The use of inclined bearing surfaces which form an angle with the longitudinal axis is instrumental in ensuring the return of the pivot arm to its equilibrium position after being turned aside. The use of a rental of this type has several advantages. First, the construction is mechanically very reliable, since the bearing is protected by foreign bodies when the swing arm is in its equilibrium position. Second, when the swivel arm is swung aside, it will only raise a small distance depending on the angle that the inclined bearing surfaces form with the longitudinal axis. This ensures that the rod mounted on the pivot arm maintains its substantially horizontal orientation both in the resting position and in a situation where the rod is actuated and pivoted aside.

Vinklen a, som lejefladerne danner med den langsgående akse, kan være mellem 5° og 85°. For de mindste værdier af vinklen vil tilbagesvingning af svingarmen efter at have været svinget til side ske hurtigt, men den svingbare del af leddet vil derimod hæves mere, når leddet svinges til side. I en foretrukket udførelsesform er vinklen a 35°.The angle α formed by the bearing surfaces with the longitudinal axis can be between 5 ° and 85 °. For the smallest values of the angle, swinging of the swing arm after being turned aside will happen quickly, but the swingable part of the joint will be raised more when the joint is swung aside. In a preferred embodiment, the angle α is 35 °.

For at sikre, at staven, der er monteret, i svingarmen, over sin udstrækning udefter i forhold til svingarmen er stort set vandret, danner svingarmen i en foretrukket udførelsesform en vinkel med den langsgående og vertikal akse, som er forskellig fra 90°. Dette medfører, at staven ved en første ende forlader sin montering i svingarmen i en skråt opadrettet vi’nkel. Da staven som regel er besiddelse af en vis udbøjning over sin udstrækning og derfor i sin anden ende bøjer skråt nedad, vil denne retning skråt opad fra stavens montering i svingarmen sikre, at staven strækker sig stort set vandret over hele sin udstrækning.In order to ensure that the rod mounted in the pivot arm is substantially horizontal relative to the pivot arm, the pivot arm, in a preferred embodiment, forms an angle with the longitudinal and vertical axis different from 90 °. As a result, the rod at first leaves its mount in the swing arm in an oblique upward angle. As the rod usually has some bending over its extent and therefore at its other end bends downwardly, this direction obliquely upward from the rod's mounting in the swing arm ensures that the rod extends substantially horizontally over its entire extent.

3 DK 94 00283 U33 DK 94 00283 U3

Opfindelsen vil herefter blive beskrevet nærmere under henvisning til den medfølgende tegning, hvor fig. 1 viser en udførelsesform for et led ifølge opfindelsen 5 fig. 2 viser en foretrukket udførelsesform for en stav til brug i forbindelse med leddet ifølge opfindelsen.The invention will now be described in more detail with reference to the accompanying drawing, in which fig. 1 shows an embodiment of a link according to the invention; FIG. 2 shows a preferred embodiment of a rod for use in connection with the link according to the invention.

Fig. 1 illustrerer et led ifølge opfindelsen. Leddet er anbragt i forlængelse af et el-hegn 1. Leddet omfatter en stander 2, en svingarm 3 10 samt en stav 4. Standeren 2 er forsynet med en fod 5, der i den viste udførelsesform er forsynet med et jordspyd 5' til at fastgøre standeren i jorden. I en alternativ udførelsesform er foden 5 ikke forsynet med jordspyd 5'. Svingarmen 3 omfatter et første stykke 6, hvortil staven 4 er monteret, og et andet stykke 7, hvortil en kontravægt 15 8 er fastgjort. Svingarmen 3 er forsynet med et rørstykke 9, og i for længelse af rørstykket oven på svingarmen er denne forsynet med en tap 10, hvorpå en elektrisk isolerende klokke 11 er monteret.FIG. 1 illustrates a link according to the invention. The joint is arranged in extension of an electric fence 1. The joint comprises a stand 2, a swing arm 3 10 and a rod 4. The stand 2 is provided with a foot 5 which, in the illustrated embodiment, is provided with a ground spear 5 'to attach the stand to the ground. In an alternative embodiment, the foot 5 is not provided with ground spears 5 '. The swing arm 3 comprises a first piece 6 to which the rod 4 is mounted and a second piece 7 to which a counterweight 15 8 is attached. The swing arm 3 is provided with a pipe piece 9, and for extension of the pipe piece on top of the swing arm, it is provided with a pin 10 on which an electrically insulating bell 11 is mounted.

Standeren 2 og rørstykket 9 er fremstillet af cirkulære cylindriske 20 rør, der strækker sig i forlængelse af hinanden langs en fælles akse A. En fælles lejepind (ikke vist) strækker sig mellem standeren og rørstykket således, at lejepinden strækker sig ind i både standeren og rørstykket. Klokken 11, der er monteret på tappen 10 oven på svingarmen 3, er placeret langs den fælles akse A.The stand 2 and the pipe piece 9 are made of circular cylindrical tubes extending in succession along a common axis A. A common bearing stick (not shown) extends between the stand and the pipe piece so that the bearing stick extends into both the stand and fitting. The bell 11 mounted on the pin 10 on the pivot arm 3 is located along the common axis A.

2525

Standeren 2 og rørstykket 9 er hver forsynet med lejeflader 12,13. Lejefladerne 12,13 danner en vinkel a med den fælles akse A. Denne vinkel ligger mellem 5* og 85°, og er i den viste udførelsesform 35°. Rørstykket 9 er svejst til svingarmen 3 i et punkt P, således at en 30 længdeakse L for svingarmen danner en vinkel β med den fælles akse A. Denne vinkel ligger mellem 90° og 120°, og er i den viste udførelsesform 96,5*.The stand 2 and the pipe piece 9 are each provided with bearing surfaces 12,13. The bearing surfaces 12, 13 form an angle α with the common axis A. This angle is between 5 ° and 85 °, and in the embodiment shown is 35 °. The tube piece 9 is welded to the pivot arm 3 at a point P such that a longitudinal axis L of the pivot arm forms an angle β with the common axis A. This angle is between 90 ° and 120 ° and in the embodiment shown is 96.5 * .

Svingarmen 3 er fremstillet af et rør. Langs det første stykke 6 af 35 svingarmen 3 er staven 4 monteret ved, at en indre ende 4' af staven strækker sig ind i røret. Staven 4 fastholdes til svingarmen 3 ved, at svingarmen er forsynet med en udsparing 14, der strækker sig over en del af omkredsen af det rør, som udgør svingarmen, og hvorigennem en rørbøjle 15 med en spændplade 16 spændes fast omkring staven.The swing arm 3 is made of a pipe. Along the first piece 6 of the pivot arm 3, the rod 4 is mounted in that an inner end 4 'of the rod extends into the tube. The rod 4 is secured to the pivot arm 3 by providing the pivot arm with a recess 14 extending over a portion of the circumference of the tube constituting the pivot arm and through which a pipe bracket 15 with a tension plate 16 is clamped around the rod.

4 DK 94 00283 U34 DK 94 00283 U3

Kontravægten 8 er monteret på det andet stykke 7 af svingarmen 3. Kontravægten skaber balance i leddet ved at danne kontravægt for staven 4's tyngde på leddet. Derudover tjener kontravægten til at øge massen af svingarmen.The counterweight 8 is mounted on the second piece 7 of the swing arm 3. The counterweight creates balance in the joint by forming the counterweight for the weight of the rod 4 on the joint. In addition, the counterweight serves to increase the mass of the swing arm.

Tappen 10, der er monteret oven på svingarmen 3, er fremstillet af et rørstykke, og et gevindstykke er svejst til rørstykket. Klokken 11 fastgøres til tappen 10 ved at være ført ned over rørstykket, hvorefter en møtrik er skruet på gevindstykket. Klokken 11 danner overgang mellem et håndtag 17 for el-hegnet og en forlængelse 18 af el-hegnet, der strækker sig langs med og er fastgjort til staven 4. Der er ikke elektrisk kontakt mellem staven 4's ydre ende 4" og det videre forløb af el-hegnet. Derfor er der parallelt med forlængelsen 18 etableret en ledning 19 fra håndtaget 17 til den modsatte side af en passageåbning, som leddet lukker for. Denne parallelle ledning 19 strækker sig som vist langs med jordoverfladen, men kan også strække sig mellem to master (ikke vist) over jordoverfladen.The pin 10 mounted on the pivot arm 3 is made of a pipe piece and a threaded piece is welded to the pipe piece. The bell 11 is attached to the pin 10 by being passed down over the pipe piece, after which a nut is screwed onto the threaded piece. At 11 o'clock, there is a transition between a handle 17 for the electric fence and an extension 18 of the electric fence extending along and attached to the rod 4. There is no electrical contact between the outer end 4 of the rod 4 and the further course of the Therefore, a conduit 19 is established parallel to the extension 18 from the handle 17 to the opposite side of a passage opening to which the joint closes.This parallel conduit 19 extends as shown along the ground surface, but may also extend between two masts (not shown) above ground level.

Funktionen af leddet ifølge opfindelsen vil herefter blive beskrevet. Svingarmen 3 kan svinges i forhold til standeren 2 omkring lejepinden (ikke vist). Svingning af svingarmen 3 sker blot ved, at staven 4 påvirkes af en horisontal kraft, for eksempel fra en traktor, der passerer leddet. Ved svingning af svingarmen 3 vil lejefladerne 12,13 på henholdsvis standeren 2 og svingarmen 3 forskydes og svingarmen forskydes bort fra sin 1 igevægtssti 11ing. Under forskydningen vil anlægget mellem de to lejeflader 12,13 ændres således, at kun et yderste område 12', 13' af lejefladerne er i anlæg med den modsatte lejeflade. Samtidig med svingningen vil svingarmen 3 hæves i forhold til standeren 2 på grund af, at lejefladerne 12,13 danner en vinkel α med den langsgående akse A.The operation of the link according to the invention will then be described. The swing arm 3 can be pivoted relative to the stand 2 around the bearing stick (not shown). Swinging of the swing arm 3 is effected simply by the rod 4 being influenced by a horizontal force, for example from a tractor passing the joint. By pivoting the pivot arm 3, the bearing surfaces 12,13 on the stand 2 and pivot arm 3, respectively, will be displaced and the pivot arm will be displaced away from its 1 balance path 11. During the displacement, the plant between the two bearing surfaces 12,13 will be changed so that only an outer region 12 ', 13' of the bearing surfaces abuts with the opposite bearing surface. At the same time as the pivot, the pivot arm 3 is raised relative to the stand 2 because the bearing surfaces 12, 13 form an angle α with the longitudinal axis A.

Når den horisontale kraftpåvirkning af staven 4 ophører, for eksempel når traktoren har passeret leddet, vil svingarmen 3 på grund af tyngdekraften søge tilbage mod sin ligevægtsstilling. Hastigheden, med hvilken svingarmen 3 søger tilbage til ligevægtsstillingen, er afgørende for, om husdyr, der befinder sig i en indhegning etableret af el-hegnet, ikke kan nå at løbe ud, inden svingarmen 3 er svinget på plads. Hastigheden, hvormed tilbagesvingningen finder sted, afhænger af vinklen a, som lejefladerne 12,13 danner med den langsgående akse AWhen the horizontal force influence of the rod 4 ceases, for example when the tractor has passed the joint, the swing arm 3 will, due to gravity, look back towards its equilibrium position. The speed at which the swivel arm 3 returns to the equilibrium position is critical to whether livestock located in an enclosure established by the electric fence cannot run out before the swivel arm 3 is swung into place. The velocity at which the backswing occurs depends on the angle α formed by the bearing surfaces 12, 13 with the longitudinal axis A

5 DK 94 00283 U3 samt af massen af svingarmen 3, staven 4 og kontravægten 8.5 DK 94 00283 U3 and of the mass of the swing arm 3, the rod 4 and the counterweight 8.

Fig. 2 illustrerer en stav 4 til brug i leddet ifølge opfindelsen. Staven 4 er fremstillet af et antal tråde 20 med en diameter på 5mm. 5 Den indre ende 4' af staven 4, der er beregnet til montage i svingarmen 3, består af fem tråde, der er samlet ved indbyrdes punktsvejsninger 21. Desuden omfatter den indre ende 4' af staven 4 en muffe 22, der bibringer staven forøget stivhed langs den indre ende. Kravet til stavens stivhed mindskes længere ude ad staven 4 mod stavens ydre ende 10 4". Omkring en tredjedel ude ad stavens udstrækning reduceres antal let af tråde 20 til tre og omkring to tredjedel ude ad stavens udstrækning reduceres antallet af tråde 20 til én. Ved successivt at reducere antallet af tråde 20 mindskes massen af staven 4 væsentligt, og kravet til standeren 2's fastgørelse i jorden samt massen af kontra-15 vægten 8 reduceres tilsvarende.FIG. 2 illustrates a rod 4 for use in the link according to the invention. The rod 4 is made of a number of threads 20 with a diameter of 5mm. 5 The inner end 4 'of the rod 4 intended for mounting in the pivot arm 3 consists of five threads assembled by mutual point welds 21. In addition, the inner end 4' of the rod 4 comprises a sleeve 22 which provides the rod increased stiffness along the inner end. The requirement for the stiffness of the rod is reduced further out of the rod 4 towards the outer end of the rod 10 4 ". About one third outwardly of the rod is reduced the number of strands 20 to three, and about two thirds to the extent of the rod is reduced the number of strands 20 to one. successively reducing the number of strands 20 substantially reduces the mass of the rod 4 and the requirement for the attachment of the stand 2 to the ground as well as the mass of the counterweight 8 is correspondingly reduced.

Staven 4 kan være fremstillet af et keramisk materiale såsom glasfiber og af et metallisk materiale såsom fjederstål. Andre udførelsesformer for staven 4 end den i figur 2 illustrerede kan tilvejebringes. Staven 20 kan være fremstillet i ét stykke med elliptisk eller trekantet tværsnit eller andre tværsnit for at opnå stor stivhed.The rod 4 may be made of a ceramic material such as fiberglass and of a metallic material such as spring steel. Embodiments of the rod 4 other than that illustrated in Figure 2 may be provided. The rod 20 may be made in one piece with an elliptical or triangular cross section or other cross sections to obtain high stiffness.

Leddet ifølge opfindelsen er i det ovenstående beskrevet under henvisning til specifikke udførelsesformer for stander, svingarm, samt 25 stav. Disse udførelsesformer skal imidlertid kun betragtes som mulige udformninger af disse elementer idet andre udførelsesformer vil kunne tilvejebringes. Ligeledes vil de værdier, der er anført for vinklen α henholdsvis β, også kunne antage andre værdier.The link according to the invention is described above with reference to specific embodiments of stands, pivot arms, and 25 rods. However, these embodiments are to be considered only as possible embodiments of these elements as other embodiments may be provided. Likewise, the values given for the angle α and β, respectively, may also assume other values.

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Claims

An electric fence link, said link comprising a stand (2) and a swing arm (3) provided with a rod (4) extending outward in a substantially horizontal direction from the swing arm on which the swing arm is mounted the stand and is intended to pivot about a longitudinal substantially vertical axis (A), characterized in that the pivot arm (3) is provided with a pipe piece (9) fixed at a point (P) on the pivot arm and which is mounted on a bearing stick extending upward from the stand (2), that the pipe piece is provided with a abutment surface (13) which forms an angle α with the longitudinal axis and that the stand is provided with a corresponding bearing surface (12) which also the angle α forms with the longitudinal axis.

Joint according to claim 1, characterized in that the angle a is between 5 "and 85 °, preferably between 30® and 40 °, most preferably 35®.

Joint according to claim 1 or 2, characterized in that a longitudinal axis (L) of the pivot arm (3) forms an angle β with a longitudinal axis (A) and the angle β is between 90 ° and 120 °, preferably 96 , 5®.

Joint according to any one of the preceding claims, characterized in that the swing arm (3) consists of a first piece (6) extending on a first side of the point (P) and of a second piece (7). extending on another side of the point P that the first piece is provided with means for holding and holding the rod (4) and the second piece is provided with a counterweight (8).

Joint according to any one of the preceding claims, characterized in that the swing arm (3) is provided with a pin (10) for attaching an electrically insulating bell (11), which pin extends above the swing arm along it. longitudinal axis A.

5 DK 94 00283 U3

Joint according to any of the preceding characters, characterized in that the swinging arm (3) of the first piece (6) is constituted by a tube intended to receive an inner end (4 ') of the rod, that the swinging arm of the first piece is provided with a recess (14) and that a pipe bracket (15) extends through the recess and is provided with a clamping plate (16).

DK 94 00283 U3

A joint according to any one of the preceding claims, characterized in that the rod (4) consists of several threads (20) extending in parallel and the threads extending in different lengths relative to a total length of the rod. 5

A joint according to any one of the preceding claims, characterized in that the wires (20) are metal threads which extend side by side and are interconnected by spot welds (21).

A joint according to any one of the preceding claims, characterized in that the stand (2) is provided with a foot 5} which is optionally provided with a ground spear (5 ').

10. Joint as described in the specification and as illustrated in the drawing. 15 20 25 30 35