EP2644778B1 - Light mast foundation stone - Google Patents

Description

The invention relates to a light tower foundation stone according to the preamble of claim 1.

A light pole foundation stone serves to anchor a light pole reliably in the ground. For this purpose, the light tower foundation stone is buried in the ground and a light pole anchored in the light tower foundation stone.

The difference between a light tower foundation stone and a conventional foundation stone used, for example, for street signs is that a light tower, in contrast to a conventional street sign, requires electrical connection cables which supply power to the lighting columns of the light tower. Here, these connection cables are designed as underground cables, which are inserted laterally by the light tower foundation stone at a depth of about 40 cm in the light pole. A conventional light tower foundation stone therefore has laterally cable through-openings, wherein the light tower in this area has lateral openings through which the electrical connection cables can be supplied to the electrical connections in the light tower.

From the WO 2005/017290 A1 is a foundation stone known for a light pole, wherein in the foundation stone a chamber is arranged. To this chamber lead electrical side feeds and an upwardly leading connecting pipe, wherein a part of the connecting pipe protrudes from the foundation stone. Here, the electrical leads through the lateral feeds into the chamber and then through the connecting pipe on to the light tower.

From the DE 20 2009 010127 U1 a charging column base is known, which is designed as a concrete part. The charging column base has a radially continuous recess through which a power cable can be laid.

From the FR 2 620 514 A1 is a two-part Lichtmastsalterung comprising a base with a receptacle for the light pole known, the base rests by its own weight on a pedestal. At the bottom of the base, a recess is centrally formed, wherein in the recess a recording closing plate is secured with an opening. Starting from the Plate extends a hollow mandrel into the receptacle, the light pole can be placed on the mandrel. In the base, an aperture is also centrally arranged, this opening is provided for carrying electrical lines.

The disadvantage of this is that replacement of a light pole is very expensive, since the electrical connection cable for the replacement process must be removed from the lateral cable ducts, as they would otherwise be damaged when pulling out the light pole from the light tower foundation stone. However, in order to remove the electrical connection cable from the side bushings are often costly excavation work with a partial exposure of the light tower foundation stone necessary.

The object of the invention is therefore to provide a light tower foundation stone of the type mentioned, with which the mentioned disadvantages can be avoided, and with which a replacement of a light pole can be performed easier.

This is achieved by the features of claim 1 according to the invention.

This results in the advantage that replacement of a light pole can be substantially simplified. The light pole to be replaced is simply turned off the light tower foundation stone pulled without the electrical connection cable must be removed from the cable duct opening. The light pole is moved away when pulling out only from the cable passage opening. There is no shearing motion in that area where the electrical connection cable from the cable entry opening of the light tower foundation stone is inserted into the light tower. Another advantage is that this can reduce the number of cable breakthroughs. Furthermore, it is therefore not necessary to form in that area of the light mast side openings, which is arranged in the light tower foundation stone and thus significantly contributes to the mechanical stability of the light tower. In addition, this can prevent the lateral penetration of soil in the light tower foundation stone. Furthermore, the electrical connection cable can thereby be buried deeper into the ground, since it is not necessary to excavate the tick to replace the light pole, as a result of which the electrical connection cable is better protected against external influences and theft. Furthermore, such a trained Lichtmast foundation stone is easier to manufacture.

The subclaims relate to further advantageous embodiments of the invention.

It is hereby expressly referred to the wording of the claims, whereby the claims at this point are incorporated by reference into the description and are considered to be reproduced verbatim.

• Fig. 1 eine erste bevorzugte Ausführungsform eines Lichtmast-Fundamentsteines als Grundriss;
• Fig. 2 den Schnitt entlang der Linie A in Fig. 1;
• Fig. 3 den Schnitt entlang der Linie B in Fig. 1;
• Fig. 4 eine zweite bevorzugte Ausführungsform eines Lichtmast-Fundamentsteines als Grundriss;
• Fig. 5 den Schnitt entlang der Linie C in Fig. 3; und
• Fig. 6 den Schnitt entlang der Linie D in Fig. 3.

The invention will be described in more detail with reference to the accompanying drawings, in which only preferred embodiments are shown by way of example. Showing:

• Fig. 1 a first preferred embodiment of a light tower foundation stone as a plan view;
• Fig. 2 the section along the line A in Fig. 1 ;
• Fig. 3 the section along the line B in Fig. 1 ;
• Fig. 4 a second preferred embodiment of a light tower foundation stone as floor plan;
• Fig. 5 the section along the line C in Fig. 3 ; and
• Fig. 6 the section along the line D in Fig. 3 ,

The Fig. 1 to 6 show preferred embodiments of a light tower foundation stone 1 with a receptacle 2 for receiving area by area of a light tower.

A light tower foundation stone 1 is designed to reliably anchor a light tower in the ground, soil or soil. For this purpose, the light tower foundation stone 1 is designed to be buried in the ground. The orientation in which the light tower foundation stone 1 is normally used in the ground is referred to as the use position of the light tower foundation stone 1. A light tower foundation stone 1 may preferably be made of concrete, in particular of reinforced concrete and / or reinforced concrete. Furthermore, it can be provided in particular that the light tower foundation stone 1 is formed in one piece.

A light tower is a mast, so a pier-like support in which electrical lines, in particular electrical connection cable, to an electrical load, in particular lighting fixture, are performed. The term light tower is in this sense representative of all masts, over which electrical loads can be supplied with electricity. These electrical consumers can be, for example, lighting fixtures, in particular for street lighting, but also for neon signs or traffic lights. The electrical load is not limited to lighting fixtures, but may for example be a speaker, which is powered by the mast with power. A light pole may be particularly preferably formed of concrete or metal. Furthermore, light poles are generally hollow inside, that is to say in particular substantially as a tube, whereby electrical conductors, in particular electrical connecting cables, can be guided well in a light tower with a simple design.

The receptacle 2 has an opening 3 for insertion of the light mast in the receptacle 2, wherein the opening 3 is arranged in the region of a head end 4 of the light tower foundation stone 1.

The receptacle 2 may be formed here in particular as a blind hole. It can also be provided in particular that the opening 3 has substantially the same cross-section as the underlying area of the receptacle 2. However, it can also be provided that the cross-section widens the receptacles 2 towards the opening, that is, the area of the Recording 2 is funnel-shaped in the head, whereby the light pole can be easily inserted. The head of the light tower foundation stone 1 is that end which points upwards in the position of use. In particular, it may further be provided that an area of the light mast foundation stone 1, which embraces the head end, still protrudes out of the subsurface, in particular essentially 10 cm, in the buried state.

It is envisaged that at one of the opening 3 opposite end of the receptacle 2 a cable duct opening 5 is arranged.

This results in the advantage that the replacement of a light pole can be substantially simplified. In this case, the light pole to be replaced is simply pulled out of the light tower foundation stone 1, without the electrical connection cable must be removed from the cable duct opening 5. The light pole is moved away when pulling out only from the cable duct opening 5. There is no shearing movement in that area where the electrical connection cable from the cable feed-through opening 5 of the light tower foundation stone 1 is inserted into the light tower. Another advantage is that thereby the number of cable openings 5 can be reduced. Furthermore, it is therefore not necessary to form in this area of the light mast side openings, which is arranged in the light tower foundation stone 1 and thus significantly contributes to the mechanical stability of the light tower. In addition, this can prevent the lateral penetration of soil in the light tower foundation stone 1. Furthermore, the electrical connection cable can be buried deeper into the ground, since it is not necessary to excavate the tick of the replacement of the light tower, whereby the electrical connection cable is better protected against external influences and theft. Furthermore, such a trained Lichtmast foundation stone is easier to manufacture.

The cable feed-through opening 5 serves to allow electrical connection cables to be routed through the light tower foundation stone 1 into the light tower in order to be connected there, for example, to terminals of the light tower, or directly to an electrical consumer. The cable bushing opening 5 can therefore be designed as at least one, in particular rectilinear, opening, which is arranged on one of the opening 3 of the receptacle 2 opposite end, ie a bottom of the receptacle 2. In the case of a plurality of electrical connection cables, it is provided that a corresponding plurality of apertures for the cable feed-through opening 5 is provided, or the aperture has a corresponding size. By the arrangement of the cable aperture 5 at the bottom of the receptacle 2, the electrical connection cable can be guided from below into the light pole, which is generally designed substantially as a tube, and is open at the bottom anyway.

In particular, it can be provided that only one opening is provided as a cable feed opening 5. As a result, the light tower foundation stone 1 can be produced particularly easily.

Furthermore, it can be provided that the receptacle 2 has a substantially circular cross-section. As a result, the light pole can be used independently of the orientation of the light tower foundation stone 1. Furthermore, it can be provided in particular that the outer shape of the light tower foundation stone 1 has a substantially circular cross-section.

Alternatively it can be provided that the receptacle 2 has a cross section in the form of a polygon, in particular rectangle or triangle. It can also be provided that the receptacle 2 has a complex shaped cross section, which is composed of straight lines and / or conic sections.

In this case, it can be provided in particular that a longitudinal axis 12 of the receptacle 2 with a foundation stone longitudinal axis of the light tower foundation stone. 1 coincides. As a result, the light tower foundation stone 1 in all directions to a homogeneous mechanical load capacity. Furthermore, the light tower foundation stone 1 is thereby easier to manufacture.

According to the preferred embodiments, it can be provided that the cable feed-through opening 5 is arranged substantially centrally in the end of the receptacle 2 opposite the opening 3. As a result, the electrical connection cable can be easily guided into the light pole regardless of the diameter of the light pole.

Particularly preferably, it can be provided that the cable feed-through opening 5 is designed as an opening with an oval cross-section. In this case, an oval cross-section designates a cross-section normal to the longitudinal axis 12, the first longitudinal extent of which is greater than its second longitudinal extent normal to the first longitudinal extent. In Fig.1 or Fig. 2 the first longitudinal extent runs along the line B or D, while the second longitudinal extent runs along the line A or C. In particular, it can be provided that the first longitudinal extent of the oval cross section is substantially twice as large as the second longitudinal extent. This can be achieved in an advantageous manner that one and the same light tower foundation stone 1 can be used for a wide range of light tower diameters and cable thicknesses of the electrical connection cable. For the supply of the electrical load of the light tower usually two electrical connection cables are provided, which must be passed through the cable duct opening 5. Owing to the oval cross section of the cable feed opening 5, on the one hand, two electrical connection cables can easily be guided side by side through the cable feed opening 5. If, however, a light mast with a small diameter is used, the light mast can be prevented from slipping through the cable feed-through opening 5 due to the smaller second longitudinal extent. As a result, both light poles with thick electrical connection cables and those with small diameters can be used in one and the same light tower foundation stone 1.

Furthermore, it can preferably be provided that the cross-section of the receptacle 2 in the region of the cable feed-through opening 5 extends in the direction of the cable feed-through opening 5, especially conical, tapered. In this case, it can preferably be provided that the end of the receptacle 2 opposite the opening 3 is formed as a taper 13. As a result, a centering of the light mast in the receptacle 2 can be achieved, whereby the center of the mast can be reliably arranged above the cable feed opening 5.

It can be provided that the cable bushing opening 5 is formed as a straight opening, which ends at a newly formed foot 6 of the light tower foundation stone 1. As a result, the light tower foundation stone 1 can be made particularly simple.

Alternatively it can be provided that the cable duct opening 5 is formed as an opening, which leads out laterally from the light tower foundation stone 1. In particular, the cable feed-through opening 5 may comprise a channel which is arranged below the receptacle 2, and in particular transversely to the longitudinal axis 12. The advantage of such a design is that when inserting the light tower foundation stone 1, the weight of the light tower foundation stone 1 does not bear on the electrical connection cable, whereby they can not be damaged.

According to the two preferred embodiments in Fig. 1 to 6 may be particularly preferably provided that the head end 4 of the light tower foundation stone 1 opposite foot 6 of the light tower foundation stone 1 has a, in particular continuous groove 7, and that the cable duct opening 5 opens into this groove 7. The groove 7 has the advantage over a channel that it is open-edged and thus easier to design. Furthermore, the electrical connection cables do not have to be inconveniently inserted into a channel. Nevertheless, the groove offers the advantage that the weight of the light tower foundation stone 1 does not bear on the electrical connection cables.

This groove 7 may be formed in particular continuously. As a result, multiple light poles can be arranged in a line without detours of the electrical connection cables are necessary. Furthermore, it can be provided that the groove 7 has a bulge in that area in which the Cable passage opening 5 opens into the groove 7. In the case of a cable feed-through opening 5 with an oval cross-section, it can be provided in particular that the groove 7 runs in the direction of the first, that is to say longer, longitudinal extent of the cross-section of the cable feed-through opening 5.

According to the first preferred embodiment, which in Fig. 1 to 3 is shown, it can be provided that the outer contour of the light tower foundation stone 1 is substantially cylindrical. As a result, an excavation with only a small diameter is necessary to use the light tower foundation stone 1.

Alternatively it can be provided that the outer contour of the light tower foundation stone 1 has a shape, wherein a base of the shape of lines and / or conic lines is composed, and the lateral surface of the form is normal to the base. In particular, this base can be a triangle or a square.

Since light poles can certainly have heights of 12 m or more, a particularly strong anchoring of the light tower foundation stone 1 in the ground or ground is necessary. According to the in 4 to 6 illustrated second embodiment, it can therefore be provided that at the foot end 6 of the light tower foundation stone 1 of a base body 8 of the light tower foundation stone 1 projecting base widening 9 is arranged. An advantage of the base widening 9 is that it can reliably prevent both the rotation of the light tower foundation stone 1 relative to the ground around the foundation stone longitudinal axis and the displacement of the light tower foundation stone 1 relative to the soil surface, in particular the tearing of the light tower foundation stone 1 from the ground ,

In order to facilitate the insertion and / or removal of the light tower foundation stone 1 from or in a pit may further be provided that the light tower foundation stone 1 has Verhebebügel 14.

The Verhebebügel 14 may be arranged laterally on the light tower foundation stone 1 according to the first preferred embodiment. If one Socket widening 9 is present may also be provided that the Verhebebügel 14 are arranged on this base widening 9.

It can further be provided that in a side wall 10 of the receptacle 2 at least one blind opening 11 is arranged. The at least one blind opening 11 serves to enable light masts, which are adapted for a conventional light tower foundation stone 1, to likewise be inserted into the objective light tower foundation stone 1. For this purpose, the blind opening 11 may be formed in particular as a blind hole. The blind opening 11 can simply be pierced or broken if necessary, to use the subject light tower foundation stone 1 also for conventional light poles, which provide a lateral feed of the electrical connection cable. As a result, a large number of different light masts can be used with the advantageously constructed light tower foundation stone 1, which considerably simplifies the logistics, since only one type of light tower foundation stone 1 can be used for a large number of different light masts. If there is no lateral supply of the electrical connection cables to the light tower, the blind opening 11 further prevents penetration of dirt and soil into the receptacle 2.

Preferably, two blind openings 11 may be provided, which are arranged opposite one another, and in particular have an oval cross-section.

In particular, it can be provided that the least one blind opening 11 on the outside of the side wall 10, that is outside, is formed. In particular, the side wall 10 may still have a remaining residual thickness of 5 mm to 40 mm, in particular 15 mm to 25 mm, in the region of the at least one blind opening 11.

Furthermore, a light pole arrangement comprising a light tower, a light tower foundation stone 1 and at least one electrical connection cable can be provided, wherein the light tower foundation stone 1 according to the above embodiments and / or developments is advantageously designed. It is provided that the light tower is arranged in regions in the receptacle 2, where by area that part of the light pole is meant, which is intended to be received in the receptacle 2 of the light tower foundation stone 1.

The electrical connection cable leads through the cable passage opening 5 of the light tower foundation stone 1 in the light pole. In the light pole, the electrical cable can either lead directly to the electrical load, or arranged in the light pole electrical connections, these connections are connected by circuitry with the electrical load. In particular, it can therefore be provided that the electrical connection cable is connected to terminals of the light tower.

Furthermore, the light pole arrangement may in particular also comprise fastening devices for fixing the light tower in the light tower foundation stone 1. Furthermore, the light pole arrangement may comprise a sealing device which seals the receptacle 2 toward the outside in the case of a light mast inserted in the receptacle 2.

Claims (9)

1. Light pole foundation stone (1) having a receptacle (2) for receiving a light pole in sections, wherein the receptacle (2) has an opening (3) for introducing the light pole into the receptacle (2), wherein the opening (3) is arranged in the region of a head end (4) of the light pole foundation stone (1), characterized in that a cable lead-through opening (5) is arranged at one end of the receptacle (2) opposite the opening (3), in that a foot end (6) of the light pole foundation stone (1) opposite the head end (4) of the light pole foundation stone (1) has a groove (7), and in that the cable lead-through opening (5) opens into this groove (7).
2. Light pole foundation stone (1) according to claim 1, characterized in that the cable lead-through opening (5) is arranged essentially centrally in the end of the receptacle (2) opposite the opening (3).
3. Light pole foundation stone (1) according to one of claims 1 and 2, characterized in that the cable lead-through opening (5) is designed as a breakthrough with an oval cross-section.
4. Light pole foundation stone (1) according to one of claims 1 to 3, characterized in that the cross-section of the receptacle (2) tapers in the region of the cable lead-through opening (5) in the direction of the cable lead-through opening (5), in particular conically.
5. Light pole foundation stone (1) according to one of claims 1 to 4, characterized in that the groove (7) is continuous.
6. Light pole foundation stone (1) according to one of claims 1 to 5, characterized in that a base widening (9) projecting from a base body (8) of the light pole foundation stone (1) is arranged at a foot end (6) of the light pole foundation stone (1) opposite the head end (4) of the light pole foundation stone (1).
7. Light pole foundation stone (1) according to one of claims 1 to 6, characterized in that at least one blind opening (11) is arranged in a side wall (10) of the receptacle (2).
8. Light pole foundation stone (1) according to one of claims 1 to 6, characterized in that the light pole foundation stone (1) has lifting brackets (14).
9. Light pole arrangement comprising a light pole, a light pole foundation stone (1) and at least one electrical connecting cable, characterized in that the light pole foundation stone (1) is designed according to one of the claims 1 to 8, in that the light pole is arranged in sections in the receptacle (2), and in that the electrical connecting cable is led through the cable lead-through opening (5) of the light pole foundation stone (1) into the light pole.

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