SE505219C2

SE505219C2 - Mark for identification of electrical wiring

Info

Publication number: SE505219C2
Application number: SE9201356A
Authority: SE
Inventors: Lars Skarin
Original assignee: Partex Marking Systems Ab
Priority date: 1992-04-29
Filing date: 1992-04-29
Publication date: 1997-07-14
Also published as: EP0568510B1; SE9201356L; SE9201356D0; DE69301756D1; DE69301756T2; DE9214721U1; EP0568510A1

Abstract

The invention relates to a tubular conductor identification mark (1) and solves the problem to provide such a mark especially adapted for being mounted on very thin conductors (2). According to the invention the internal cavity of the mark is of substantially T-shaped configuration and the walls of the cavity are thin so that expansion to circular profile is facilitated. According to a special embodiment the mark has a cross-shaped profile, the additional fourth arm (5) completing the cross, defining a pocket for a separate marking plate (6) which can axially be inserted into a pocket (7). <IMAGE>

Description

505 219 2 märkenas storlek. Det har emellertid, av särskilt tillverknings- tekniska och hanteringsmässiga skäl, visat sig vara svårt att uppnå denna storleksanpassning helt enkelt genom nedskalning av märken konstruerade för grövre ledningar. Detta gäller i vart fall för de allra klenaste ledningarna med en diameter av någon eller några millimeter. Det har därför i sådana applikationer länge ansetts nödvändigt att göra märkhylsornas yttermått väsentligt större än ledningsdiametern. Den därav betingade större relativa godstjockleken medför dock i sin tur minskad flexibilitet och expansionsförmåga varför en given hylsas an- vändbarhet begränsas till ett mycket snävt diameterintervall, i praktiken närmast ett enda diametervärde. Ändamålet med uppfinningen är att åstadkomma ett ledningsmärke, särskilt avsett för mycket klena ledningar, som inte är behäftat med de ovannämnda nackdelarna. Detsamma kännetecknas i huvudsak därav, att dess invändiga hålrum i tvärsektion har väsentligen T-liknande form. 505 219 Size of 2 brands. However, for reasons of manufacturing technology and handling in particular, it has proved difficult to achieve this sizing simply by downscaling marks designed for coarser pipes. This applies in any case to the thinnest wires with a diameter of a few millimeters. It has therefore long been considered necessary in such applications to make the outer dimensions of the marking sleeves substantially larger than the pipe diameter. The consequent greater relative wall thickness, however, in turn leads to reduced flexibility and expansion capacity, which is why the usability of a given sleeve is limited to a very narrow diameter range, in practice almost a single diameter value. The object of the invention is to provide a line mark, especially intended for very small lines, which is not encumbered with the above-mentioned disadvantages. The same is mainly characterized by the fact that its internal cavities in cross section have a substantially T-like shape.

Tre utföringsformer av uppfinningen beskrivs nedan med hänvis- ning till ritningen, vars tre figurer illustrerar var sin utfö- ringsform, i samtliga fall ett ledningsmärke påträtt en klen elektrisk ledning eller tråd.Three embodiments of the invention are described below with reference to the drawing, the three figures of which each illustrate their embodiment, in all cases a wire mark affixed to a small electrical wire or wire.

Fig. 1 visar ett märke 1, påträtt en ledning 2. Dess invändiga hålrum 3 har väsentligen T-profil med T:ets ändar belägna i hörnen av en ungefärligen liksidig triangel. De två väggar vilka mellan sig har det tänkta T:ets stapel är utvändigt konkava, medan den i figuren övre väggen, motsvarande T:ets tvärgående del, har en svagt konvex yttre begränsningsyta. I denna befinner sig märkningssymbolen 4. Av figuren framgår, att de relativt tunna väggarna kan tvingas isär till invändigt cirkulär form, så att märket kan anbringas på en avsevärt grövre ledning och på ledningar med alla mellanliggande diametermått.Fig. 1 shows a mark 1, on a line 2. Its internal cavity 3 has a substantially T-profile with the ends of the T located in the corners of an approximately equilateral triangle. The two walls which between them have the stack of the intended T are externally concave, while the upper wall in the figure, corresponding to the transverse part of the T, has a slightly convex outer boundary surface. In this is the marking symbol 4. The figure shows that the relatively thin walls can be forced apart into an internally circular shape, so that the mark can be applied to a considerably coarser line and to lines with all intermediate diameter dimensions.

I utföringsformen enligt fig. 2 har T:ets stapel avsevärt större längd än i fig. 1 och märksymbolen 4 är här anbragt på utsidan 3A l sus 219 av detta förlängda parti; i praktiken vanligen på båda dess sidoytor. Med denna konfiguration blir den maximala tvärsek- tionsarean hos hålrummet 3, och därmed det användbara diameter- intervallet, större.In the embodiment according to Fig. 2, the stack of the T has a considerably greater length than in Fig. 1 and the mark symbol 4 is here arranged on the outside 3A of the 219 of this extended portion; in practice usually on both its side surfaces. With this configuration, the maximum cross-sectional area of the cavity 3, and thus the usable diameter range, becomes larger.

Märket enligt fig. 3 slutligen har ett hålrum 3 av samma all- männa form som i fig. 1. Profilen är emellertid korsformad genom att mittför det nedåtriktade partiet befinner sig ett uppåtrik- tat sådant, 5, som bildar en ficka för en axiellt införbar märk- skylt 6. Vid strängsprutningen av detta ledningsmärke användes ett transparent plastmaterial.The mark according to Fig. 3 finally has a cavity 3 of the same general shape as in Fig. 1. However, the profile is cross-shaped in that opposite the downwardly directed portion there is an upwardly directed one, 5, which forms a pocket for an axially insertable rating plate 6. A transparent plastic material was used for the extrusion of this line mark.

Claims

505 219 Patent claims

Cable mark, in particular for marking a very small wire or wire (2), which, equipped with the mark, undergoes its circumferentially closed internal cavities (3), the wire-receiving cross-sectional area of which is variable within a diameter range by making the mark in a elastic plastic material, characterized in that the cavity (3) in cross section has a substantially T-like shape.

2. A cable mark according to claim 1, characterized in that the boundary walls of the cavity (3) also have a substantially T-profile on the outside.

Cable mark according to claim 1 and made of transparent plastic, characterized in that the same in cross section is substantially cross-shaped, wherein one (5) of the four arms of the cross encloses a pocket (7) for a mark plate (6) -

Cable mark according to Claim 1 or 2, characterized in that mark symbols (4) are arranged on the outside of the portion corresponding to the transverse part of Tzet.

Cable mark according to Claim 1 or 2, characterized in that mark symbols (4) are arranged on the outside of the portion corresponding to Tzet's stack.