EP3193076B1 - Adapter ring for mounting a luminaire - Google Patents

Description

The present invention relates to a reducer for the arrangement between a lamppost and a mast flange of a patch on the lamppost lamp.

In the prior art, it is customary to set up a lamp with a mast flange on a lamppost for mounting pole lights and clamp. In order to compensate for a gap between the inside of the mast flange and the outer circumference of the lamppost, reducers, e.g. in the form of a solid cylindrical element, as shown in Figure 1 used.

A disadvantage of this design, however, is that for electrical connection of the lamp, which is usually done by an electrical cable inside the mast, the reducer must be threaded over the cable before the lamp can be connected to the cable. This is expensive to install and also involves the risk that the edges of the reducer damage the cable during assembly.

EP 0 240 054 A1 discloses a mast luminaire with a ring element which is applied around the mast. On a ring element several individual lamps are held. An intermediate piece is arranged inside the ring and formed from two half-shells, which is arranged between the outer circumference of the mast and the inside of the ring on which the lamps are held.

Object of the present invention is to provide a reducer of the type mentioned, which is easier to assemble.

The invention is achieved by a reducer according to claim 1.

A special feature of the reducer of the present invention is that a recess is provided in the reducer, which connects the two opposite openings of the hollow shape of the reducer with each other. Through the recess, the electrical cable, which is already mounted between the lamp post and the lamp, be introduced into the interior of the reducer to then arrange the reducer during assembly of the lamp on the lamp post between the mast flange and the lamp post. The recess may, for example, comprise a longitudinal slot in a continuous wall of the reducer, the longitudinal slot extending continuously from the upper opening to the lower opening of the reducer. In particular, the reducer may, for example, have a shell wall in the basic form which is in the form of the luminaire mast (e.g., round or polygonal). The recess may be formed by a slot in the shell wall, which extends over the entire length of the reducer. The width of the slot must be at least dimensioned so that an electrical cable can be pushed through the slot from outside to inside in the reducer.

An advantage of the invention is that the electrical connection cable no longer has to be threaded through from one end through the reducer, as in the prior art, in order to mount the luminaire with the reducer on the luminaire pole. This not only simplifies assembly, but also it also reduces the risk that threading the electrical connection cable through the reducer will damage the cable at the edges of the reducer.

According to the invention, the recess extends over an opening angle between 5 ° and 120 °, preferably between 10 ° and 90 °, measured from a central

Longitudinal axis of the reducer. For example, the reducer has the basic shape of a cylinder and the recess is given by a circular section between 5 ° and 120 °, preferably between 10 ° and 90 °. Instead of a continuous cylinder but only a partially formed cylindrical piece can be provided. These sections each contain a section to allow the cable to be inserted. The hollow shape of the reducer does not have to be cylindrical, but may for example have quadrangular or any other polygonal shape that may have a lamppost. As a luminaire mast in the context of this invention, each section of a supporting structure to understand at the end of a lamp is placed with a flange. For example, it may also be an arm that extends horizontally or at any angle to the horizontal plane from a house wall or a post.

According to a preferred embodiment, the reducer has at least two sections which are arranged one above the other in a longitudinal direction of the reducer and which are connected to one another by a web. Unlike the in FIG. 1 illustrated reducer according to the prior art can also be provided according to the invention to form the reducer only from the superimposed sections, each forming a part of the inner or outer side of the reducer to rest against the lamppost or on the mast flange. The sections are connected to one another by a web, so that the sections are viewed one above the other in the longitudinal direction of the lamp post. This construction is material-saving as a Reduzierstück, which has a shell wall made of a solid material. As previously described, this reducer also has a continuous recess connecting the two opposite openings of the reducer. In this case, respectively a recess formed on each of the two sections of the reducer.

According to a preferred embodiment of the latter embodiment, the recesses in the respective two sections of the reducer can be arranged one above the other. Thereby, the electric cable can be inserted straight through the recesses into the interior of the reducer. According to an alternative embodiment, it can also be provided that the recesses in the two sections are arranged offset from one another. Since the electrical connection cable is flexible, it can also be passed through the two recesses individually, if they are not aligned. This embodiment has the advantage that the reducer in the mounted state in a projection parallel to the longitudinal extent of the lamp post encloses the lamp post in full. As a result, the clamping connection between mast flange and lamp post is more stable.

According to a preferred embodiment, at least one hole is formed in the side wall of the reducer in the preferred embodiment having a plurality of sections of the reducer connected by the web to perform a clamping screw. The clamping screw may be screwed from the exterior of the luminaire through the mast flange and said reducer hole to press on the luminaire pole. As a result, the mast flange is clamped laterally on the lamp post, the reducer fills a distance between the lamp post and the interior of the mast flange. In particular, the clamping between the lamppost, the reducer and the mast flange is given.

According to a preferred embodiment, projections are provided on the inside of the reducer provided for this purpose are to rest in the installed state of the reducer on the outer circumference of the lamppost. This embodiment has the advantage that the reducer is not fully applied to the lamppost, but only on the smaller inwardly facing surfaces of the projections. As a result, unevenness can be compensated on the lamppost. Furthermore, a ventilation between the outside of the lamppost and the reducer is given.

The invention further relates to a pole lamp with a lamp post and a patch on the lamp post luminaire, between a mast flange of the lamp and the lamp post, a reducer, as previously described, is mounted. A continuous electrical cable extends from the luminaire inside the reducer and inside the luminaire pole. It is advantageous that the cable between the interior of the lamppost and the lamp can already be connected before the reducer is mounted. Furthermore, the cable does not need to be severed because the recess in the reducer allows the cable to be inserted into the reducer without having to thread it lengthwise from one aperture to the opposite aperture of the reducer.

According to another aspect, the invention further relates to a method of mounting a pole light as described above, the method comprising the steps of: connecting the luminaire to an electrical cable laid in the luminaire pole and then inserting the cable into the reducer through the recess; and
Mounting the lamp with the mast flange on the lamp post, wherein the reducer is clamped between an outer periphery of the lamp post and an inner periphery of the mast flange. An advantage of the method is that the reducer can be mounted when the lamp is already connected to the cable installed inside the lamppost.

Figur 1

ist eine perspektivische Ansicht eines Reduzierstücks nach dem Stand der Technik.

Figur 2

ist eine perspektivische Ansicht eines Reduzierstücks gemäß der vorliegenden Erfindung.

Figur 3

ist eine Aufsicht auf das Reduzierstück nach Figur 2.

Figur 4

ist ein Querschnitt durch einen Leuchtenmast und einen Mastflansch einer Leuchte senkrecht zur Längserstreckung des Mastes mit einem dazwischen angeordneten Reduzierstück nach Figur 2.

Other features and advantages of the present invention will become apparent from the following description of a preferred embodiment, taken in conjunction with the accompanying drawings. The figures show the following:

FIG. 1

is a perspective view of a reducer according to the prior art.

FIG. 2

is a perspective view of a reducer according to the present invention.

FIG. 3

is a view of the reducer after FIG. 2 ,

FIG. 4

is a cross section through a luminaire mast and a mast flange of a lamp perpendicular to the longitudinal extent of the mast with an interposed reducer after FIG. 2 ,

Referring to the FIGS. 2 to 3 An embodiment of a reducer will be described.

The reducer comprises two sections 2 and 4, each forming a partial circular ring. Both sections 2 and 4 are connected to a web 6 such that the sections are congruent to each other. The sections 2 and 4 each have a recess 8, so that the opening of the upper portion 2 is connected to the opening of the lower portion 4 through the side of the reducer throughout. The recesses 8 therefore allow a continuous cable in the Introduce the inside of the reducer, without having to pass the cable with one end through the openings. This reflects a significant difference in the reducer FIGS. 2 and 3 to the reducer of the prior art, which in FIG. 1 is shown. There, a closed cylindrical section is provided which does not allow a cable to pass through the interior without having to thread it through one end through the top and bottom openings.

The recess 8 extends over an angular range of α of slightly less than 90 °. This size is sufficient to be able to pass a cable 13, possibly a wide multi-core cable 13.

The function of the reducer for mounting a luminaire on a luminaire pole is in conjunction with the FIG. 4 described.

The reducer is intended to be disposed between an outer periphery of a lamppost 10, which is cylindrical in this example, and a mast flange 12, also cylindrical in this example, to fill a space between the lamppost and the mast flange. In the FIG. 4 an arrangement is shown in cross section, so that the position of the reducer between the lamp post 10 and the mast flange 12 can be seen, although the reducer is not visible in the mounted lamp from the outside usually.

In such pole lights, the electrical supply line for the lamp is usually laid in the mast. In the present case, a multi-core cable 13 is laid in the lamppost.

In a conventional reducer, as in FIG. 1 shown, the electrical cable with a free end had to be passed through the reducer, and could be mounted only then to the light or in the mast. In the case of the reducer according to the invention, the cable already mounted at both ends can be led into the reducer through the recess 8. As a result, the assembly is considerably simplified. Accordingly, first the lamp can be connected to a previously laid in the lamppost cable. The reducer is then pushed with the recess 8 over the cable and placed on the lamp post 10. The luminaire can be positioned with the mast flange 12 above the reducer. By bolt 14 of the mast flange 12 in the axial direction (see arrow in FIG FIG. 4 ) is clamped by holes 16 in the web 6 of the reducer against the outer periphery of the lamp post 10, wherein the reducer between the mast flange and the lamp post is arranged. Preferably, two screws 14 for two holes 16 in the reducer and the mast flange are provided one above the other.

As on the inner circumference of the reducer in the FIGS. 2 to 4 is shown, the reducer at each section in each case two projections 20, with which engages the reducer on the outer circumference of the mast. Preferably, on the inner circumference of the mast flange, as in FIG. 4 shown, also two projections 22 are provided, which bear against the outer circumference of the reducer. As a result, a frictional connection between the lamp post 10 and the mast flange 12, as shown by the fictitious line 24 in FIG. 4 represented, produced. The flange 12 is therefore held securely by clamping on the mast 10.

The projections 20 and 22 have the advantage that the corresponding components not directly with the entire surface of the Outer or inner circumference abut the reducer. As a result, unevenness in the components can be compensated.

Numerous modifications can be made to the reducer described above without departing from the scope of the invention, which is defined by the claims. In particular, the reducer a continuous shell circumference, similar to the reducer in FIG. 1 , but according to the invention, a continuous recess is provided from the upper to the lower opening of the reducer in order to insert the cable can. The reducer may be formed in particular of metal to accommodate the relatively high clamping forces. The reducer formed from a sections connected to a web can in particular be made of a metal sheet.

In the embodiment shown the FIGS. 2 and 3 in each case a recess 8 is provided in the two sections. The cutouts 8 are aligned with each other, so that the cable can be inserted straight through the recesses in the reducer. However, in further embodiments, the recesses 8 may also be provided offset from one another in two or more sections of the reducer. This embodiment has the advantage that points of contact along the entire circumference of the reducer between the outer and inner circumference of the reducer and the lamp post or the mast flange can be provided.

The embodiment of the reducer described in the figures is provided for a cylindrical lamp post and a correspondingly formed cylindrical mast flange. However, it is also possible that the lamppost is a polygonal Form has. Accordingly, the reducer is also formed with a corresponding polygonal shape.

The luminaire pole, as described above, may be, for example, a luminaire pole, which is arranged perpendicular to the earth's surface. However, the invention is not limited to this type of lamppost. For the purposes of the invention, each hollow carrier is included as a lamp post, at the end of a lamp with a corresponding flange and the reducer is mounted. For example, the light pole can also be arranged at any angle to the ground carrier extending laterally from a wall or other mast.

LIST OF REFERENCE NUMBERS

2

upper section

4

lower section

6

web

8th

recess

10

mast lights

12

mast flange

13

electrical cable

14

screw

16

hole

20

Projection on the reducer

22

Projection on the mast flange

24

fictitious line of a frictional connection

Claims (8)

1. Adapter ring for arranging between a lighting mast (10) and a mast flange (12) of a luminaire located on the lighting mast (10),
   wherein the adapter ring exhibits a hollow mould with openings at opposite ends, and is configured such as to engage with an inner side around an outer circumference of the lighting mast (10) and to be in contact with an outer side with an inner circumference of the mast flange (12), in order to fill an intermediate space between the lighting mast and the mast flange,
   wherein the hollow mould of the adapter ring exhibits a cut-out opening (8), which continuously connects the openings at the opposite ends of the adapter ring, characterized in that the cut-out opening (8) is dimensioned in such a way as to allow for an electric cable to be introduced into the hollow mould between the openings of the adapter ring, and that the cut-out opening (8) extends over an opening angle (α) of between 5º and 120º, measured from a central longitudinal axis of the adapter ring.
2. Adapter ring according to claim 1, wherein the opening angle (α) is between 10º and 90º.
3. Adapter ring according to any one of the preceding claims, wherein the adapter ring comprises at least two sections (2, 4) arranged above one another in a longitudinal direction of the adapter ring, which are connected to one another by a web (6).
4. Adapter ring according to claim 3, wherein the cut-out openings (8) in each of the at least two sections (2, 4) are arranged above one another or offset to one another.
5. Adapter ring according to any one of the preceding claims, wherein, in a side wall of the adapter ring, by reference to claim 3 or 4, at least one hole (16) is formed in the web (6), in order to introduce a clamping screw.
6. Adapter ring according to any one of the preceding claims, wherein projections (20) are arranged on the inner side, which are provided such as to be in contact, in the installed state of the adapter ring, with the outer circumference of the lighting mast (10).
7. Mast light with a lighting mast (10) and a luminaire located on the lighting mast (10), wherein an adapter ring according to any one of the preceding claims is mounted between a mast flange (12) of the luminaire and the lighting mast (10), wherein a continuous electric cable (13) is laid from the luminaire inside the adapter ring and inside the lighting mast (10).
8. Method for assembling a mast light in accordance with claim 7, with the following steps:

   Connecting the luminaire to an electric cable (13) laid in the lighting mast (10) followed by the introduction of the cable into the adapter ring through the cut-out opening;
   and

   mounting the luminaire with the mast flange (12) on the lighting mast (10), wherein the adapter ring is clamped between an outer circumference of the lighting mast (10) and an inner circumference of the mast flange (12).

Images