JPH0216521B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a lighting device that is attached to an arm provided on a structure such as a lighting pole.

[Technical background of the invention and its problems]

For example, among street lighting equipment, there is an arm-mounted type in which a light body equipped with a lamp is attached to an arm provided on a lighting pole or telephone pole installed on the street.

Conventionally, this type of lighting equipment has adopted the structure shown in FIG. 1 in order to attach the lamp body to the arm.
That is, in the figure, 1 is a light body equipped with a lamp (not shown), 2 is an arm installed on a lighting lamp post, etc., and 3 has a semicircular arm receiving part 3a in the center, and both ends are erect. The lamp holder 4 has a lamp mounting portion 3b formed therein, and is an arm mount. The arm holder 3 is arranged with the arm holder 3a placed on the upper part of the arm 2, and the arm holder 4 is arranged facing the arm holder 3 and in contact with the lower part of the arm 2. A bolt 5 is commonly inserted between both ends of the arm holder 3 and both ends of the arm holder 3a of the arm holder 3, and a nut 6 is screwed onto the bolt 5. As a result, the arm holder 3 and the arm mount 4 are attached to the arm 2 with the bolts 5. Further, in the arm receiver 3, the lamp mounting part 3b is brought into contact with the lamp 1, the bolt 7 is commonly inserted through the lamp mounting part 3b and the lamp 1, and the nut 8 is screwed onto the bolt 7. ing. As a result, the arm holder 3 and the lamp body 1 are attached.
Furthermore, a reinforcing plate (not shown) is provided on the lamp body 1 in order to prevent deformation of the lamp body 1 due to the load applied to the lamp body 1 when the arm mount 4 is tightened with the bolt 7.

However, in such a conventional mounting structure for the light body 1, the mounting portions between the arm holder 3 and the arm mount 4 and the arm 2, and the mounting portion between the light body 1 and the arm holder 3 are separate from each other. Therefore, the number of bolts and nuts used for each attachment part increases. Further, since a reinforcing plate is separately provided on the lamp body 1, the number of parts increases, the structure becomes complicated, and manufacturing becomes troublesome.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and it is possible to directly attach the lamp body to the arm, increasing the attachment strength, and reducing the number of parts.
The present invention provides an arm-mounted lighting device that has a simple structure and is easy to manufacture.

[Summary of the invention]

The lighting device of the present invention includes an arm holder extending in the axial direction of the arm and serving as a reinforcing plate, an arm holder for attaching the arm holder to the arm, and an arm holder along the longitudinal direction. By inserting a common fixture into the lamp body and tightening and fixing it, the three parts are integrally attached at the same location.

[Embodiments of the invention]

An embodiment of the present invention illustrated in the drawings will be described below.

2 to 4 show an embodiment of the lighting device of the present invention.

In the figure, 11 is a lamp body, 12 is an arm holder 13 is an arm mount, and 14 is an arm. The arm 14 has a circular shape, for example, and is installed approximately horizontally on a lighting pole installed on a street. The lamp body 1 has a horizontally elongated box shape with an open lower part, and a lamp 15 is provided inside the lamp body 1, and a translucent illumination cover 16 is attached to the lower open part. The lamp body 11 is arranged such that the tip of the arm 14 is located inside the base end of the lamp body. The arm holder 12 has a U-shaped cross section, extends in the longitudinal direction of the lamp body 1, and has a length from the base end to the middle part thereof. Two arm holders 12 are prepared, and are located on both sides of the upper part of the arm 14 inside the lamp 1, and are arranged in parallel along the longitudinal direction of the lamp from the base end to the center. In this case, each arm holder 12 is provided with the open part facing downward, and the center part of each arm holder 12 abuts the inner surface of the upper wall of the lamp body 1 over the entire longitudinal direction of the holder, and
An edge of one side of the base end of each receiver 12 contacts the upper outer circumferential surface of the arm 14 having a circular cross section along the longitudinal direction to receive the arm 14 from above. Here, the side portion of the arm holder 12 that receives the arm 14 becomes the arm receiving portion 12a. The arm mount 13 is made of, for example, a rectangular plate,
The arm 14 has a semicircular arm attachment portion 13a along the lower outer peripheral surface of the arm 14.
Both ends are extended vertically upward and both ends are bent horizontally to form a mounting piece 13b. Two arm mounts 13 are prepared, and each arm mount 13 is disposed at the lower part of the arm 14 so as to face the proximal end of the arm receiver 12 at intervals in the arm longitudinal direction. In this case, the arm attachment part 13a of each arm attachment 13 contacts the outer peripheral surface of the lower part of the arm 14 and supports it from below, and the attachment pieces 13b at both ends of each arm attachment 13 are arranged under the center of each arm holder 12. Place it on the side. Here, a mounting hole 17 is formed in each mounting piece 13b at both ends of each arm mount 13, and a mounting hole 17 is formed in the center of the base end of each arm holder 12 and in the base end of the upper wall of the lamp body 11. Attachment holes 18 and 19 are formed at positions facing each attachment hole 17 of the arm mount 13, respectively.

A bolt 20, for example, as a fixture is commonly inserted through the mounting holes 17 to 19 located one above the other at the same location. That is,
The bolt 20 is inserted from above into the mounting hole 19 of the lamp body 11 and the arm holder 12 located below the mounting hole 19.
Commonly inserted into the mounting hole 18 of the
Arm mount 13 located below the mounting hole 18
It is commonly inserted into the mounting hole 17 of the mounting piece 13b.
A nut 21 is screwed onto the tip of a bolt 20 that protrudes below the mounting piece 13b of the arm mount 13 and is tightened. Note that 22 in the figure is a washer. Further, a nut (not shown) may be interposed between the arm holder 12 and the mounting piece 13b of the arm fixture 13 and screwed onto the bolt 20. In this way, the lamp body 11 and the arm holder 12 are attached to the bolt 2.
0, and the arm holder 12 and the arm holder 13 are attached with bolts 20 at the same place where the lamp body 11 and the arm holder 12 are attached. That is, the arm holder 12 and the arm mount 13 are fixed to the arm 14 by bolts 20 while holding the arm 14 from above and below, and the lamp body 11 is attached to the same mounting part as the arm holder 12 and the arm mount 13. Attach arm holder 1 with bolt 20.
Attach to 2. In other words, the lamp body 11, the arm holder 12, and the arm mount 13 have a common bolt 20.
Since the light body 11 is commonly inserted into the same place and attached to the arm 14, the light body 11 can be directly attached to the arm 14, and the arm 11 can directly receive the load of the light body 11 including the lamp 15. . Since the arm holder 12 extends along the longitudinal direction of the lamp body 11 and comes into contact with the arm 14, the arm holder 12 can also function as a reinforcing plate provided to prevent the lamp body 11 from being deformed.

Note that the structure and number of the arm holder and arm mount are not limited to those in the embodiment.

〔Effect of the invention〕

As explained above, the lighting device of the present invention is of the type in which the lamp body is attached to the arm, and the lamp body,
Since the arm holder and the arm mount are installed and fixed at the same mounting part by common insertion of bolts, the light body can be directly attached to the arm and the load of the light body can be directly received by the arm. This makes it possible to increase the mounting strength of the lamp body to the arm. In addition, since the arm holder extends along the length of the lamp and is in contact with the arm, the arm holder also serves as a reinforcing plate, eliminating the need for a special reinforcing plate, reducing the number of parts, and improving the structure. Simplification and ease of production can be achieved.

[Brief explanation of drawings]

Figure 1 is a side view showing a conventional lighting device;
3 and 4 are a partially cutaway front view, a cross-sectional view, and a plan view, respectively, showing an embodiment of the lighting device of the present invention. 1... Lamp body, 2... Arm, 3... Arm holder, 4... Arm mount, 5, 7... Bolt, 1
1... Lamp body, 12... Arm holder, 12a...
Arm receiving part, 13...Arm mounting fixture, 13a...
...Arm mounting portion, 13b...Mounting piece, 14...Arm, 15...Lamp, 17, 18, 19...Mounting hole, 20...Bolt, 21...Nut.

Claims (1)

[Claims] 1. A lamp body equipped with a lamp, and an arm holder that extends along the longitudinal direction of the lamp body and has an arm receiving part that contacts and receives the arm provided on the structure in the longitudinal direction. and an arm mount that presses the arm together with the arm holder, and a mount that is commonly inserted through the lamp body, the arm holder, and the arm mount to attach and fix each of these parts. lighting equipment.