SE538944C2 - Socket-outlet pole and the method to produce it - Google Patents

Description

SOCKET-OUTLET POLE AND THE METHOD TO PRODUCE IT The object of this invention is a socket-outlet pole that consists at least of a hollow body in the frame of which there is a lengthwise open place, one extension socket-outlet placed inside the body the socket connections of which are ready to be used in the open place of the body and a supply lead which reaches outside the body and a lid to cover a certain open part. The socket-outlet pole according to the invention can also contain at least one case for a minute current outlet and / or a fault mode current guard. The object of the invention is also a method to produce the mentioned socket-outlet pole.

The socket-outlet pole according to the invention can be used for instance in offices, business facilities and in all such plants where there is a need to connect many electric devices to the network at the same time and the telecommunication devices, like ADP or telephone through minute current connectors in their own networks. The use of the socket-outlet pole according to the invention facilitates and makes clearer the obtaining of the electricity and telecommunication to different working places. The use of the invention is especially favorable when there are a lot of devices to be connected in a relatively small area.

In the situations that have been described above, there are nowadays used socket-outlet poles that have a tubular profile bar body of light metal having on its perimeter lengthwise open place through the whole construction and to which mentioned body there has been fixed necessary amount of canal socket-outlets equipped with cable clamps and that are connected to each other. It is known that the canal socket-outlets contain two or three outlets and by connecting them together with supply terminals a desired amount of outlets can be obtained to the socket-outlet poles. The socket-outlet poles or a combination of them are equipped with the clamps to prevent the wires to get loose from their connections when an extension strain is present in the feeder cable leading to the socket-outlet pole. The electric cables of the canal outlets of these socket-outlet poles are always fixed individually when producing these socket-outlet poles in the phase of assembling. It is known that it is possible to fix to these socket-outlet poles also minute current connector boxes. The feeder cables of the socket-outlets minute current connector boxes and the socket-outlets are led out of the body through the opening in its end and it is possible that there is an extension tubular so called cable feed part inside which no boxes are installed but that is only for the cables.

Another known socket-outlet pole is produced so that the light metal body as above is extruded such by its crosscut that it has inside projections that limit inside the body in the middle of it a whole pole length lengthwise and crosscut wise suitable for some factory made extension outlet. In this case, it is possible to push into the mentioned space through the end of the pole an extension outlet that is prewired in the factory with the feeder cable and the box cables. It is possible to push into the inside space the desired amount of the extension outlets and they can be installed lengthwise in certain locations inside the tube and fix to their places using snap-in fasteners that are suitable for this purpose. The projections inside the tube support the mentioned extension outlets to their places crosswise. Thus it is possible to get the desired amount of the outlet boxes into the socket-outlets. The minute current boxes can be fixed in this method of the known solution to the body by pressing them into the body and in there to the fixing organs accessing through the open lengthwise opening.

The biggest drawbacks of the first mentioned known technique outlet poles are in the high purchase costs of the canal outlets and the work costs of the wire installation connections. So called armatures for the canal installations must be assembled earlier about the before mentioned pieces, that is canal outlets, feeder connectors, and clamps and the purchase costs of them become as known manifold in comparison with the other known technique example of the socket-outlet pole that was mentioned. Still additional costs are caused as the boxes and the wires must be connected as handwork. These drawbacks are essential especially for the canal socket-outlets because usually the greatest parts of the armature of the socket-outlet poles are the canal socket-outlets.

The secondly mentioned known technique solution has the clear advantage in comparison with the firstly mentioned that the factory made extension socket-outlets are used there so that the purchase costs are considerably smaller than when using the canal socket-outlets. Additional savings are achieved, because the installation costs are left out as the electric connections have already been made in connection of the production.

The biggest drawbacks of this secondly mentioned technique can be seen to be the following things: The projections inside their bodies that are formed in the extruder phase are always all the way of the body length limit inside the body the size of the space between the extension socket-outlets and so there is very limited space for the feeder cables of the extension socket-outlets and the feeder cables of the minute current connections and especially for the minute current connectors themselves. Addi-tionally, these bodies become relatively heavy because of the projections inside being the whole length of the bodies. Therefore, the relatively large mass per length unit means a great amount of material in the extruding and thus high costs in the production of the body. The third drawback is that with certain inside projection formation only one suitable factory made extension socket-outlet can be used. The cross section profile of the extension socket-outlet must be the same as the space 102 inside the body 100 (fig 7). For every socket-outlet profile there must be produced an own body preform the inside projection positioning of which is compatible with a certain profile. The fourth drawback of this known technique is that the mentioned projections 101 inside the body make it many times more difficult to inställ the standard armatures that are used in them, like for instance fault mode current guards. It is then necessary to cut pieces away from these projections to make them to fit.

The above firstly described known technique is used in the field commonly and the secondly described technique is used in the production of the company of this patent applicant. This låter has been described in the Finnish utility patent number 9488. The meaning of this invention is to achieve such a socket-outlet pole and a method to produce it that the known technique drawbacks would be avoided. The characteristic features of the socket-outlet pole according to the invention have been presented in the characterizing parts of the claims 1 and 4.

Basing on the before mentioned, the technique in the utility patent can be considered the level of the technique even for the reason that it is economically superior to the technique of the canal socket-outlets usage.

The most important advantage of the invention in comparison with the technique that is described in the before mentioned utility patent is achieved there that a considerably larger room can be gotten inside for different kind of armatures and the wires of these armatures. Another important advantage is achieved by saving in the costs when producing the body of the socket-outlet pole. As the projections inside are considerably smaller the weight of the body per length unit is also considerably smaller and the savings in the material consumption give a noteworthy saving in the production of the socket-outlet pole according to the invention. A very big advantage is also achieved as a certain body profile is not bound only to certain extension socket-outlet cross section, but instead it is possible to fit in this kind of body many extension socket-outlets with different cross sections of different sizes. A smaller number of different body preforms are needed and also a smaller number of extruder tools are needed. It should also be noted that the lightness of the body gives also advantage to the production of the extruder tools and the handling of the socket-outlet poles. It is known that the smaller the projections of the preform to be extruded are the fewer problems occur to achieve the accuracy that is demanded in the production of the preforms.

In this document the term socket-outlet pole means also such an application of the invention where the product according to the invention has been installed or can be installed as a panel in a room or a piece of furniture. The term "cradle" means in this document all such organs with which the extension socket-outlet can be fit and sup ported to be a part of the socket-outlet pole. The term "minute current connector box" means an apparatus having either one or more minute current connectors.

The invention is described in more detail with reference to the enclosed drawings, where fig 1 presents one socket-outlet pole according to the invention in 3D, fig 2 presents a cross section cut of the before mentioned socket-outlet pole right-angled at the point of an extension socket-outlet, lengthwise the socket-outlet pole, that is crosswise cut, figs 3 and 4 present the installation of the cradle that operates as a matching section, fig 5 presents the cross section cut of the before mentioned socket-outlet pole cut at the point of the minute current connector box, fig 6 presents the cross section cut of the socket-outlet pole cut at such a place where there are no armatures, fig 7 presents a solution of the level of the technique.

Now the following is one for the invention favorable application composition and structure with the help of an example referring to the before mentioned figures.

In fig 1 it has been described one socket-outlet pole 1 according to the invention that composes of the body 2, a bottom plate 12 fixed to the down end of the body, two extension socket-outlets 4, minute current connector box 5, between the boxes, under and above situated lid parts 6, a base 7 fixed to the bottom plate and the feeder wires 8 coming from the boxes and the plugs 9 at the ends of the extension socket-outlets feeder wires and the connector 10 at the end of the feeder wire of the minute current connector box. Ready to be used socket-outlet pole 1 is standing on its foot and the plugs 9 are connected to the electrical network and the connector 10 to the communi-cation network. The fig 2 describes the cross section cut of the before mentioned socket-outlet pole at the point of the extension socket-outlet 4 and it can be seen there that there is an open room 2.1 in the shell of the body 2 and that room reaches lengthwise through the body and there is inside the body in the opposite side the open room 2.1 two first supports 2.2 and in the side of the body two more supports 2.3. These supports have been made in the production of the body preform and they are small projections and it has been supported and fixed to the first supports 2.2 a cradle 3 that adapts the extension socket-outlet box to the body 2 and it has been installed against this cradle an extension socket-outlet 4. The feeder wire 8 of the extension socket-outlet box has been led out from the body 2 along a space that is inside it and out through the opening at the end of the body.

In this example, the described setting is made so that first the bottom plate 12 is fixed using screws to the bottom of the body 2 and thereafter the lowest lid 6, minute current connector box 5 and the second lowest lid are fixed to their places in the way that will be presented låter in more detail. Thereafter the cradle 3 that is essentially the same length as the lower extension socket-outlet 4 composing of four socket boxes 4.2, the part that has been cut from the extruded light metal body is pushed in the way described in fig 3 sideways through the open place 2.1 of the body inside the body and it is fastened and fixed to be an extension of the before mentioned parts to the first support 2.2 by turning it at the same time to the usage position shown in fig 4. In this example, the cradle projections operate as fixing organs 3.1 and their ends fix the cradle to its place so that the left projection in fig 4 settles in the left side hollow support and the right hand side projection gets fixed to the right hand side support so that a lump in the projection gets pressed behind the first support 2.2 in question (under in the figure). After this the extension socket-outlet 4 is pushed the narrower side 4.1 first inside the body through its open place 2.1 in such a place of the body where there is no cradle 3 and no other armatures either and it is turned so that the socket-outlet 4.2 is in the direction of the open place 2.1 and is pushed upon the cradle so that the extension socket-outlet 3 settles into its operation position as the forehead surface 3.2 of the cradle and side supports 3.3 and the sides 2.4 of the body support it in its place in all the sideways directions of the socket-outlet pole. The edges 2.4 prevent the extension socket-outlet box to be pushed through the open room 2.1. The feeder wire 8 of the extension socket-outlet box 4 is placed to go along the inner room of the body out through the top end opening. The extension socket-outlet box 4 can also be glided inside the body through its top end opening. After this, the socket-outlet pole is equipped with other armatures and parts to complete it and the last part of these to be put to its place is the top lid part.

The before presented inventive solution gives the end result that the support structure of the extension socket-outlet 4 is only essentially of the same length as the extension socket-outlet box and not of the whole length of the body. Because of this the body parts where there is no extension socket-outlet, a space without extension socket-outlet support construction is left. This space is utilized when placing armatures like for instance minute current connector boxes, fault mode current guards and so on and their feeder wires 8.

In fig 5, a cross section cut of the socket-outlet pole is presented at the place of a minute current connector box 5. The minute current connector boxes 5 are connected to the minute current connector 5.1 in the socket-outlet pole 1 according to the invention in such a way in this example case that the adapter pieces 11 that are used are fixed to the other support parts 2.3 of the body and they are glided through the open end of the body along the mentioned supports inside the body to the place of the minute current boxes.

The socket-outlet pole 1 that has been equipped with a desired amount of the extension socket-outlets 4 and the minute current connector boxes 5 is equipped with an appropriate amount of lids 6 between and in extension of the before mentioned boxes. Fig 6 presents a cross section of the socket-outlet pole at the point of the lid 6. The lids are installed to their places to cover the open place 2.1 of the body in those places where there is no armature and between the armatures in the points of the discontinui-ty. They also support the armatures to their places in the length wise direction of the socket-outlet pole, so they have both structural and visual meaning. Fig 6 presents one way to fix the lids 6 to their places and in this case with the help of the before mentioned adapter organs 11 so that the lids 6 are pressed to the open place 2.1 of the body when their locking organs 6.1 get fixed to the adapter organs 11.

The length of the adapter organs 11 is determined by the lengths of the minute current connector boxes 5, lids 6 and other armature that is fixed using them. The adapter organ cannot be located at the place of the extension socket-outlet 4 but its length can otherwise be adopted to the length of an individual minute current connector box 5, other armature or lid 6 or if they are located side by side with their combined length. The extension socket-outlet boxes 4 prevent the cradles 3 to move in the lengthwise direction of the socket-outlet pole, also when they are standing. The moving of the cradles in the mentioned direction can also be prevented be joining an extension socket-outlet box 4 and a cradle 3 together. As an example of this, a solution can be mentioned where instant glue is put to the forehead 3.2 of the cradle and the extension socket-outlet box 4 is pressed to that.

A socket-outlet pole 1 according to the invention can be made as a floor model equipped with a base 7, table model equipped with a fixing organ or a panel model fixed to a piece of furniture or certain part of the room. The bottom plate 12 can be fixed to the body with for example screws so that the ends of the screws support to the hollow inside spaces of the first and second supports 2.1, 2.3. It is possible to make a tapped hole when the base 7 can be fixed to its place with a screw or the socket-outlet pole for instance to a piece of furniture or also with a screw.

The central characteristic of the invention is the use of the cradle 3 when supporting the extension socket-outlet to its place renders possibility to use different dimension extension socket-outlets 4 with a certain body profile. All the factory made extension socket-outlets that fit to the width w of the open place and by the height h to certain scale belonging extension socket-outlets can come in the question. Then the dimen-sioning of the cradle 3 is adapted to be used with certain extension socket-outlet. The production of different profile bars that are cradle preforms takes the place of production of different body profiles of the known technique within certain limits.

The length of every cradle 3 that is used can be adapted to the extension socket-outlet that is used in connection with it. The most favorable application for this part can essentially be seen to be the length of the extension socket-outlet but the use of the invention is not bound only to that. In some cases, the cradle can be somewhat shorter or smaller than the mentioned extension socket-outlet. However, it must always fit to the other armatures. It is essential that the total combined length ofall the cradles 3 is always less than the length of the body 2. The bigger this difference is the greater is the advantage of the invention.

The cradles 3 can be produced tailor made and in some cases can standard profiles be used. The first supports 2.2 that are to be formed inside the body can be made in many different ways. The option that these supports are in place of the projections inside the body situated surface grooves in not out of question. It is central for the cradle 3 that the cradle can be fixed to its place quickly and firmly and that different model cradles can be used case by case. Differing from the above examples, the cradle can be moved inside the body also through the opening of the end of the body. The cradle 3 can be made in the solution according to the invention also composing of more than one part.

Fig 7 presents with the meaning of comparison a solution of the level of the technique. Inside the body 100 there are relatively massive projections 101 all the length of the body that support the extension socket-outlets. The cradle removes the need to use the whole body long projections 101 supporting the extension socket-outlets 4 and thus additional space is freed inside the body for other armatures and their feeder wires and a noteworthy cost saving is obtained in the production of the bodies.

It is possible to inställ into the socket-outlet pole 1 according to the invention a fault mode current guard by machining the body 2 structure. When it is installed to the body using for instance the before mentioned adaptation parts 11 the technique level projections 101 will not come to hinder the installation but they get always settled in the area between the cradles.

It is possible to use in addition to light metal any other suitable material as the material of the body 2, cradle 3, adaptation organ 11 and the lid 6.

It should be noticed that even though this explanation has kept to one kind for the invention favorable solution example this does not by any means want to limit the use of the invention to be used only in this type of example but instead many variations are possible in the scope determined in the inventive idea of the claims.

Claims (4)

1. l. Eluttagspelare (l) åtminstone innefattande: a. en ihålig kropp (2) i vars skal det finns ett öppet område (2. l), b. ett förlängningseluttag (4) installerat inuti kroppen (2) där uttagen (4.2) är redoatt användas belägna i det öppna området (2. l) och matarkabeln (8) somsträcker sig ut ur kroppen, c. en täckdel (6) för att täcka en viss del av det öppna området (2. 1), d. mellan kroppen (2) och varje förlängningseluttag (4) en vagga (3) för attanpassa och stödja den nämnda förlängnings socket outlet (4) mot kroppen (2) vid en viss plats på kroppen i rät vinkel relativt kroppens längdaxel,kännetecknad av att e. vidden av förlängnings socket-outlet (4) är större än den (W) av det öppnaområdet (2. 1), f. vaggan (3) stöds och är fäst vid kroppen (2) genom sammankoppling avstödmedlen (2.2) i kroppen för fixering av förlängningseluttaget (4) ochvaggans fästorgan (3. 1), g. förlängningseluttaget (4) har anpassats till kombinationen av kroppen (2) ochvaggan (3) som stödjer förlängningseluttaget, h. vaggornas (3) totala längd är mindre än kroppens längd.

2. Eluttagspelare enligt krav l, kännetecknad av att vaggan (3) har huvudsakligen samma längd som förlängningseluttaget (4).

3. Eluttagspelare enligt krav l eller 2, kännetecknad av att den innefattar åtminstone en kopplingslåda (5) för svaga strömmar och/eller en strömvakt.

4. Förfarande för att tillverka en eluttagspelare enligt vilken åtminstone ett förlängningseluttag (4) installeras inuti den ihåliga kroppen (2) så att dess uttag (4.2) blir redo att användas i det öppna området (2.1) och matarkabeln (8) sträcker sig utanför kroppen och en vagga är installerad inuti kroppen (2) i syftet att anpassa och stödja det nämnda förlängningseluttaget (4) till kroppen (2) vid en viss plats på kroppen i rät vinkel relativt dess längdaxel, kännetecknad av att a. vaggan (3) förflyttas inuti kroppen (2) genom det öppna området (2.1) ellergenom öppningen vid kroppens ände innan förlängningseluttaget (4) installeras, b. vaggan (3) stöds och är fäst vid kroppen (2) genom sammankoppling avstödmedlen (2.2) i kroppen för fixering av förlängningseluttaget (4) ochvaggans fästorgan (3. l) innan förlängningseluttaget (4) installeras, c. förlängningseluttaget (4) vars bredd är större än bredden av kroppens öppnaområde anpassas till kombinationen av kroppen (2) och vaggan (3), d. vaggan (3) stöds i längdriktningen av kroppen antingen med en kontakt medstödorganen eller fästorganen, eller genom sammanfogning av vaggan och förlängningseluttaget (4). Förfarande enligt krav 4, kännetecknat av att vaggan (3) och förlängningseluttaget (4) sammanfogas med lim. Förfarande enligt krav 4 eller 5, kännetecknat av att förlängningseluttaget (4) installeras inuti kroppen genom det öppna området (2.1).