JP3106448U - Outdoor lighting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outdoor illuminating lamp which is excellent in durability and excellent in landscape characteristics and effective use of land.
A cast iron arm having an inner diameter substantially equal to the outer diameter of the pole and extending along the axial direction of the pole is attached to the upper end of the concrete pole. By incorporating the lighting circuit 46 inside the arm 14, the center of gravity of the upper end portion of the outdoor illumination lamp 10 is not greatly deviated from the axis of the pole 12, and stress is applied to a predetermined position near the ground portion below the pole 12. Concentration can be prevented. In addition, there is no need to provide a separate box to store the lighting circuit 46, or the lower part of the concrete pole 12 has a large diameter, which can enhance the landscape and the space above the ground where the pole is installed is sufficient. Can be secured.
[Selection] Figure 1

Description

  The present invention relates to an outdoor illumination lamp that is installed outdoors and is used as a street light, a park light, a security light, and the like.

  Conventionally, outdoor lighting has been provided in streets, park lights, crime prevention lights, etc. in urban areas and the like so as to ensure nighttime traffic safety and the like. This outdoor illuminating lamp has a pole (light pole) with a lower end embedded in the ground and a lamp attached to the upper end, and a lamp using a steel pipe is well known.

  However, steel pipe poles have a risk of corrosion, and their useful life is set to 15 years under the PL method. As described above, the steel pipe pole with a short service life of 15 years has to be frequently replaced, and there is a problem that maintenance management is troublesome.

  As a technique that can solve such a problem, there is an outdoor illuminating lamp using a concrete pole. As a specific example, as shown in FIG. 6 (A), a box (2a) in which a lighting circuit including a ballast and a cutout switch is housed on the peripheral surface of an upright concrete pole (1) is provided. FIG. 6B shows an object (3) to which a lighting fixture (2) provided with a lamp (2b) such as a discharge lamp that is turned on by this lighting circuit is attached (for example, see Patent Document 1). As described above, there may be mentioned an article (5) using a concrete pole (4) in which a lower step part (4a) close to the ground is formed to have a hollow large diameter so as to accommodate a lighting circuit therein.

In these outdoor illuminators (3) (5) using concrete poles (1) (4), the problem of corrosion of the poles (1) (4) is eliminated, so the outdoor illuminators (3) (5) The burden of maintenance management can be reduced.
JP-A-8-222383 (FIG. 1)

  However, in the outdoor lighting (3) shown in FIG. 6 (A), a heavy box (2a) or the like is attached to the peripheral surface of the upper end of the pole (1). ) The center of gravity of the upper end is greatly deviated from the axis of the pole (1). For this reason, when the outdoor illuminating lamp (3) is greatly shaken by strong winds or the like, stress concentrates at a predetermined position near the ground portion below the pole (1), and the load on the portion (stress concentration portion) increases. As a result, even if a concrete pole (1) having no problem of corrosion is used, the durability becomes inferior. In recent years, outdoor lighting has not only fulfilled its original function of nighttime lighting, but also has high demands on the landscape, such as decorating the surrounding environment and making viewers feel interesting. However, when the box (2a) or the like was attached to the upper peripheral surface of the pole (1), there was a problem that the surrounding scenery was damaged.

  On the other hand, in the outdoor lighting (5) shown in Fig. 6 (B), it is necessary to make a large installation space on the ground when installing, and the land around the outdoor lighting (5) can be used effectively. There was a problem of disappearing.

  Therefore, a main problem of the present invention is to provide an outdoor illumination lamp that is excellent in durability and excellent in landscape and effective use of land.

  The idea described in claim 1 is that a concrete pole (12) standing on the ground (G) is connected to the upper end of the pole (12) and is substantially equal to the outer diameter of the pole (12). A cast iron arm having an inner diameter and extending along the axial direction of the pole (12), and in which a lighting circuit (46) including a ballast (42) and a cutout switch (44) is incorporated ( 14) and a lamp (16) connected to the arm (14) and lit by the lighting circuit (46) ”.

  In the outdoor illuminating lamp (10) of the present invention, the upper end of the concrete pole (12) free from corrosion problems has an inner diameter substantially equal to the outer diameter of the pole (12) and the shaft of the pole (12). The cast iron arm (14) extended along the direction is attached, and the lighting circuit (46) is built inside the arm (14), so the upper end of the outdoor lamp (10) The center of gravity does not deviate significantly from the axis of the pole (12). For this reason, even if the outdoor illuminating lamp (10) is greatly shaken by a strong wind or the like, it is possible to prevent stress from being concentrated at a predetermined position near the ground portion below the pole (12).

  Also, since the lighting circuit (46) including the ballast (42) and the cutout switch (44) is built in the arm (14), a box for storing the lighting circuit (46) separately. There is no need to provide a large diameter or the lower part of the concrete pole (12).

  According to the present invention, an arm made of cast iron having an inner diameter substantially equal to the outer diameter of the pole and extending along the axial direction of the pole is attached to the upper end of the concrete pole. Since the lighting circuit is built in, the outdoor lighting can be prevented from concentrating on a predetermined position near the ground below the pole even if the outdoor lighting is greatly shaken by strong winds. The durability of the lamp can be improved.

  In addition, there is no need to prepare a separate box to store the lighting circuit and attach it to the pole, or it is not necessary to make the lower step of the pole thicker, so this is the case when a highly durable concrete pole is used. However, the outdoor lighting does not impair the surrounding landscape, and a sufficient space on the ground where the pole is installed can be secured.

  Therefore, it is possible to provide an outdoor illumination lamp that is excellent in durability and excellent in landscape and land utilization.

  The present invention will be described below with reference to the illustrated embodiments. 1 and 2 show an outline of an outdoor illumination lamp (10) according to the present invention, which is roughly composed of a pole (12), an arm (14) and a lamp (16).

  The pole (12) is a long tubular member made of concrete which does not have a corrosion problem even if it is installed outdoors for a long period of time, and has a cavity (12a) provided therein (see FIG. 2). A cable outlet (18) communicating with the cavity (12a) is formed in the side surface of the lower end portion buried in the ground of the pole (12), and the cavity (12a) is formed from the cable outlet (18). A power cable (20) is extended to the upper end of the pole (12). Further, the pole (12) is formed so that its outer diameter is slightly tapered from the lower end to the upper end, and the root (22) is attached to the side surface of the lower end. In this way, when the pole (12) is erected on the ground (G), the pole (12) does not fall down.

  In addition, by using colored concrete as the concrete that forms the pole (12), and by making the external shape of the pole (12) a pseudo-wood tone, the aesthetics and landscape of the outdoor lamp (10) are further enhanced. Can do.

  The arm (14) is interposed between the pole (12) and the lamp (16) and has an inner diameter substantially equal to the outer diameter of the pole (12) and the axial direction of the pole (12). And a main body (14a) made of cast iron having high durability. A cylindrical sheath portion (14b) is formed at one end of the main body (14a), and the sheath portion (14b) and the upper end portion of the pole (12) are fitted together, and these are pushed bolts (24 ). In the arm (14) of this embodiment, an opening is provided at the upper end of the main body (14a) in order to extend a pipe (48) described later from the inside of the arm (14).

  A part of the main body (14a) is detachably formed as a lid body (14c). Normally, the lid (14c) is fixed to the main body (14a) with a bolt (26) (see FIG. 3). By providing such a lid (14c), the inside of the arm (14) can be inspected. It is like that.

  A connecting member (28) is disposed inside the arm (14) so as to more firmly fix the pole (12) and the arm (14).

  The connecting member (28) has an approximately same outer diameter as that of the upper end surface of the pole (12), and an approximately donut having an opening (30) corresponding to the cavity (12a) of the pole (12) at the center thereof. The plate-shaped lower plate (28a) and a vertical piece (28b) having a substantially concave cross section standing in the vicinity of the outer extension of the lower plate (28a). The lower plate (28a) corresponds to a plurality (four in this embodiment) of bolt insertion holes (not shown) screwed on the upper end surface of the pole (12) (so as to surround the cavity (12a)). A locking slot (32) is provided at the position, and the bolt (34) is screwed into the bolt insertion hole through the locking slot (32) to connect the connecting member (28) and the pole (12 ) Can be firmly fixed (see FIG. 3). Also, a locking hole (36) is provided at a predetermined position of the vertical piece (28b), and a bolt inserted through the locking hole (36) into the main body (14a) of the arm (14) is inserted. By screwing the bolt (40) into the hole (38), the connecting member (28) and the main body (14a) of the arm (14) can be firmly fixed (see FIG. 4 (B)).

  Lighting circuit components such as a ballast (42) and a cutout switch (44) are attached to the inner surface of the concave portion of the vertical piece (28b) of the connecting member (28). A lighting circuit (46) for lighting the lamp (16) is formed.

  Further, in the connecting member (28) of the present embodiment, a substantially doughnut-shaped upper plate (28c) is attached to the upper end of the vertical piece (28b) facing the lower plate (28a), and this upper plate ( On the upper surface of 28c), a stainless steel pipe (48) that is bent into a predetermined shape and extends out of the arm (14) through an opening provided at the upper end of the arm (14) It is attached integrally so as to communicate with the internal space of (14). A packing (50) is attached to the opening at the upper end of the arm (14) from which the pipe (48) extends to prevent water from entering the arm (14). The lamp (16) is connected to the tip of the pipe (48).

  The lamp (16) is for irradiating light toward the ground, and is a casing (16a) designed to project light downward, and the casing (16a) has a built-in lighting circuit. A light source (not shown) such as a high-pressure mercury lamp, a high-pressure sodium lamp, or an LED (light-emitting diode) whose light emission is controlled by (46).

  Next, when installing the outdoor illumination lamp (10) of this embodiment, first, a predetermined position of the ground (G) where the outdoor illumination lamp (10) is installed is excavated to a predetermined depth with an excavator such as an auger. To do.

  Subsequently, the arm (14) is attached to the tip of the pole (12) (which becomes the upper end after the pole (12) is erected). Specifically, the procedure is as follows. That is, the power cable (20) embedded in the ground is pulled into the cavity (12a) from the cable outlet (18) of the pole (12) and pulled out from the tip of the pole (12), and the lid (14c) is The sheath (14b) of the removed arm (14) and the tip of the pole (12) are fitted together and fixed with a push bolt (24) (see FIG. 4 (A)). Next, the connecting member (28) to which the pipe (48) is integrally attached is positioned inside the main body (14a) of the arm (14), and using the bolts (34) and (40) as described above. Then, each of the pole (12) and the arm (14) is connected to the connecting member (28) (see FIG. 4B). After that, lighting circuit parts such as ballast (42) and cutout switch (44) are attached to the vertical piece (28b) of the connecting member (28), and these are connected to the power cable (20) to light up. A circuit (46) is formed (see FIG. 4C). Then, the attachment of the arm (14) to the pole (12) is completed by fixing the lid (14c) to the main body (14a) using the bolt (26).

  Subsequently, while suspending the pole (12) to which the arm (14) is attached by a lifting means such as a crane, the pole (12) is positioned at a predetermined installation location. At this time, the direction of the pipe (48) connecting the lamp (16) and the vertical level of the pole (12) are also adjusted. After the positioning of the pole (12) is completed, the root (22) is attached to the lower end of the pole (12), and the ground of the excavated ground (G) is backfilled. Thereby, the standing of the pole (12) is completed.

  And while connecting the casing (16a) of the lamp (16) to the tip of the pipe (48), and electrically connecting the light source (not shown) and the lighting circuit (46), the outdoor illumination lamp (10) Installation is completed.

  In the above installation method, after the pole (12) is erected, the lamp (16) is attached to the arm (14) (more specifically, the pipe (48) extending from the arm (14)). However, the pole may be erected after the lamp (16) is attached to the arm (14).

  As described above, according to the present embodiment, the upper end of the concrete pole (12) has an inner diameter substantially equal to the outer diameter of the pole (12) and along the axial direction of the pole (12). The extended cast iron arm (14) is attached, and the lighting circuit (46) is built inside the arm (14), so the center of gravity of the upper end of the outdoor lighting (10) is the pole. It does not deviate greatly from the axis of (12). For this reason, even if the outdoor illuminating lamp (10) is greatly shaken by a strong wind or the like, it is possible to prevent stress from concentrating on a predetermined position near the ground portion below the pole (12). ) Durability can be improved.

  In addition, since the lighting circuit (46) including the ballast (42) and the cutout switch (44) is built in the arm (14) in this way, a box for storing the lighting circuit (46) separately. Even if a highly durable concrete pole (12) is used, the outdoor lighting (10) The surrounding landscape can be prevented from being damaged (that is, the landscape can be enhanced), and a sufficient space on the ground where the pole is installed can be secured.

  In the above embodiment, the pipe (48) is extended from the upper part of the arm (14), and the lamp (16) is attached to the tip of the pipe (48). However, as shown in FIG. The upper portion of the main body (14a) of (14) may be sealed, and the side surface of the main body (14a) may be protruded, and the lamp (16) may be attached to the protruding portion.

It is the schematic which shows the outdoor illumination lamp of one Example of this invention. It is explanatory drawing which shows the principal part of the outdoor illumination lamp of one Example in this invention. It is the II sectional view taken on the line in FIG. It is explanatory drawing which shows a part of assembly procedure of the outdoor illumination lamp in this invention. It is the schematic which shows the outdoor illumination lamp of the other Example of this invention. It is the schematic which shows the conventional outdoor illumination lamp.

Explanation of symbols

(10) ・ ・ ・ Outdoor lighting
(12) ・ ・ ・ Paul
(14) ・ ・ ・ Arm
(16) ・ ・ ・ Lamp
(18) ・ ・ ・ Cable outlet
(20) ・ ・ ・ Power cable
(22) ... Roots
(28) ・ ・ ・ Connecting member
(42) ・ ・ ・ Stabilizer
(44) ・ ・ ・ Cutout switch
(46) ・ ・ ・ Lighting circuit
(G) ... Ground

Claims (1)

A concrete pole standing on the ground,
Connected to the upper end of the pole, has an inner diameter substantially equal to the outer diameter of the pole, extends along the axial direction of the pole, and incorporates a lighting circuit including a ballast and a cutout switch inside Cast iron arms,
An outdoor illuminating lamp comprising: a lamp connected to the arm and lit by the lighting circuit.

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