JP2020166943A - Lighting device and spacer member - Google Patents

Abstract

To provide a lighting device capable of reliably suppressing displacement of a lamp fixture, and to provide a spacer member.SOLUTION: A lighting fixture 10 comprises: an installation side member 20 including a cylindrical installation side fitting part 221 and installed on an installation surface 2a; and a lamp fixture side member 30 including a lamp fixture 31 and a cylindrical lamp fixture side fitting part 321 into which the installation side fitting part 221 is inserted and fitted to the installation side member 20. Also, the lighting fixture 10 comprises a spacer member 40 formed of a member different from the installation side member 20 and the lamp fixture side member 30, and disposed closer to an inner surface 321b of the lamp fixture side fitting part 321 than to an outer surface 221c of the installation side fitting part 221. The spacer member 40 includes: a support part 43a supported by the installation side fitting part 221; and a projecting part 42 projecting to the side closer to the inner surface 321b of the lamp fixture side fitting part 321 than to the outer surface 221c of the installation side fitting part 221 in a condition of being supported by the installation side fitting part 221.SELECTED DRAWING: Figure 4

Description

The present disclosure relates to lighting devices and spacer members.

Conventionally, as a lighting device, a device including a lamp (lighting fixture) and a support column (pole) on which the lamp is mounted is known (see, for example, Patent Document 1).

In Patent Document 1, the lamp is attached to the support column via an adapter. Specifically, the lamp is attached to the side of the cylindrical adapter, and the lower end of the cylindrical adapter is a mounting portion to be mounted on the support column. Then, by inserting the joint portion formed at the tip of the strut portion into the internal space of the mounting portion, the lamp is mounted on the strut portion.

Japanese Unexamined Patent Publication No. 2018-181719

By the way, when inserting the joint portion of the strut portion into the lower end portion of the cylindrical adapter, in order to improve the insertability, it is necessary to form a gap between the inner surface of the adapter and the outer surface of the joint portion. It is common.

Therefore, as in the conventional technique, simply inserting the joint portion of the strut portion into the lower end portion of the adapter may cause the adapter to be displaced with respect to the joint portion of the strut portion.

In this way, if the adapter is misaligned with respect to the joint portion of the strut portion, the lamp is attached to the strut portion in a misaligned state.

Therefore, an object of the present disclosure is to obtain a lighting device and a spacer member capable of more reliably suppressing the misalignment of the lamp.

The lighting device according to the present disclosure has a tubular installation-side mounting portion, and has an installation-side member installed on the installation surface and a tubular lamp-side mounting portion into which the lamp and the installation-side mounting portion are inserted. It has a lamp-side member that is attached to the installation-side member. Further, the lighting device is formed of a member different from the installation side member and the lamp side member, and a spacer member is partially arranged on the inner surface side of the lamp side mounting portion with respect to the outer surface of the installation side mounting portion. I have. Then, the spacer member is supported on the support portion supported by the installation side mounting portion and on the inner surface side of the lamp side mounting portion with respect to the outer surface of the installation side mounting portion in a state of being supported by the installation side mounting portion. It has a protruding portion and a protruding portion.

The spacer member according to the present disclosure is formed on the lamp side member having the lamp rather than the outer surface of the tubular installation side mounting portion formed on the installation side member installed on the installation surface, and the installation side mounting portion is formed. It is arranged so that a part of it is located on the inner surface side of the tubular lamp-side mounting portion to be inserted. This spacer member projects toward the inner surface side of the lamp-side mounting portion than the outer surface of the installation-side mounting portion in a state of being supported by the installation-side mounting portion and the installation-side mounting portion. It has a protrusion.

According to the present disclosure, it is possible to obtain a lighting device and a spacer member capable of more reliably suppressing the misalignment of the lamp.

It is a perspective view which shows typically the state in which the lighting apparatus which concerns on 1st Embodiment is installed. It is a side view which shows typically the lighting apparatus which concerns on 1st Embodiment. It is a side view which shows typically the state which removed the lamp of the lighting apparatus which concerns on 1st Embodiment. It is a side view which shows typically the state which the lamp side mounting part which concerns on 1st Embodiment is attached to the installation side mounting part. FIG. 4 is a sectional view taken along the line AA of FIG. It is a side view which shows typically the lamp side mounting part, the spacer member and the installation side mounting part which concerns on 1st Embodiment. (A) is a perspective view schematically showing a state before mounting the spacer member according to the first embodiment on the installation side mounting portion, and (b) is a perspective view schematically showing a state before mounting the spacer member according to the first embodiment on the installation side. It is a perspective view which shows typically the state which was placed on the mounting part. (A) is a perspective view schematically showing a state before the spacer member according to the modified example of the first embodiment is placed on the mounting side mounting portion, and (b) is a modified example of the first embodiment. It is sectional drawing which shows typically the state which put such a spacer member on the installation side mounting part. It is a side view which shows typically the lighting apparatus which concerns on 2nd Embodiment. It is a side view which shows typically the lamp side mounting part, the spacer member and the installation side mounting part which concerns on 2nd Embodiment. (A) is a perspective view schematically showing a state before the spacer member according to the second embodiment is placed on the installation side mounting portion, and (b) is a perspective view schematically showing a state before the spacer member according to the second embodiment is placed on the installation side. It is a side view which shows typically the state which was placed on the mounting part.

Hereinafter, the lighting device of each embodiment will be described with reference to the drawings. In the description and drawings of each embodiment, the same reference numerals are attached to the same parts. The description of the same parts with the same reference numerals will not be repeated in subsequent embodiments. In the comparison of the drawings of the first embodiment and the subsequent embodiments, the same parts with the same reference numerals have the same structure and function unless otherwise specified.

Further, in each of the following embodiments, an outdoor light installed outdoors such as a sidewalk is exemplified as a lighting device, and an LED light source is used as a light source unit.

(First Embodiment)
As shown in FIG. 1, the outdoor light (lighting device) 10 according to the present embodiment is installed on the sidewalk surface (installation surface) 2a of the sidewalk 2 formed on both sides of the roadway 1, such as the roadway 1 and the sidewalk 2. , Illuminates the surrounding environment of the outdoor light 10.

As shown in FIGS. 2 and 3, the lighting device 10 has an installation side member 20 installed on the sidewalk surface (installation surface) 2a of the sidewalk 2 and a lamp 31, and is attached to the upper part of the installation side member 20. The lamp side member 30 is provided.

In the present embodiment, the installation side member 20 is supported by the pedestal portion 21 installed on the sidewalk surface 2a by embedding and fixing a part of the member 20 in the ground, and the lower end thereof is supported by the pedestal portion 21 so as to stand up substantially in the vertical direction. It is provided with a substantially cylindrical (cylindrical) support column 22 that is extended (see FIG. 1). By placing the pedestal portion 21 on the sidewalk surface 2a, it is possible to install the installation side member 20, and the lower end of the strut portion 22 is sharpened and the sharpened lower end is in the ground. It is also possible to install the installation side member 20 by inserting it.

Then, by attaching the lamp side member 30 to the upper end (tip) 221 of the support column 22 installed on the sidewalk surface 2a via the pedestal portion 21, the outdoor light 10 is installed on the sidewalk surface 2a. There is.

The strut portion 22 can be formed using, for example, a metal material such as stainless steel, but is not limited to this, and can be formed using various materials.

Further, in the present embodiment, the strut portion 22 has a tubular shape having substantially the same diameter from the lower end to the upper end, and electrical wiring, a fall prevention member 318, etc., which will be described later, may be accommodated inside the strut portion 22. You can do it. The upper end portion 221 of the support column portion 22 is a cylindrical (cylindrical) installation-side mounting portion having an opening 221a that opens upward, and the installation-side mounting portion (upper end portion 221) has a cylindrical shape. The lamp side member 30 is attached.

In the present embodiment, the lamp side member 30 includes a lamp 31 having a light source unit 311 and an adapter 32 for attaching the lamp 31 to the installation side member 20.

The lamp 31 includes a holder 312 forming the lower side of the outer shell and a glove 313 forming the upper side of the outer shell, and the holder 312 and the glove 313 form a substantially spherical shape. A space S is formed in a substantially spherical outer shell formed by the holder 312 and the glove 313, and the light source unit 311 is arranged in the space S.

In the present embodiment, the holder 312 is made of a material such as stainless steel and has a light impermeable property that does not transmit light. On the other hand, the glove 313 is made of a material such as glass or acrylic resin, and has light transmittance. Therefore, in the present embodiment, the light emitted from the light source unit 311 passes through the globe 313 and is irradiated to the outside.

The holder 312 can be formed by using various materials, not limited to materials such as stainless steel. At this time, at least a part of the holder 312 may have light transmission. In addition, the glove 313 having light transmission can also be formed by using various materials.

The holder 312 includes a bowl-shaped main body portion 312a that is curved so as to be convex downward, and the glove 313 is attached to a glove attachment portion 312c formed on the outer peripheral edge portion of the main body portion 312a (FIG. 2 and FIG. 3).

Further, a cylindrical (cylindrical) mounting portion 312b is integrally formed at the central lower end portion of the main body portion 312a (the lowermost end portion of a spherical surface curved so as to be convex downward) so as to project downward. There is. The cylindrical (cylindrical) mounting portion 312b is open downward, and the space inside the mounting portion 312b communicates with the space S.

A substantially disk-shaped mounting plate 312d is arranged above the main body portion 312a, and the mounting plate 312 allows the space S in the substantially spherical outer shell to be replaced with the upper space S1 on the glove 313 side and the holder. It is partitioned into the lower space S2 on the 312 side.

A substantially square columnar columnar support member 314 projecting upward is arranged on the upper side of the mounting plate 312, and a light source portion 311 is attached to each side surface of the columnar support member 314. Specifically, four (plurality) light source units 311 are attached to each side surface of the columnar support member 314, one by one. At this time, the four light source units 311 are attached to the side surfaces of the columnar support member 314 so that the height positions in the vertical direction are substantially the same. As described above, in the present embodiment, the four (plurality) light source units 311 are arranged in a circumferential shape in the space S of the lamp main body 30.

The light source unit 311 includes an LED element (semiconductor element) 311a as a light source and a lens (optical member) 311b that collects light emitted from the LED element 311a.

On the other hand, a power supply box 315 for supplying electric power to the light source 311 is arranged below the mounting plate 312. Further, a ballast accommodating portion 316 is formed in the lower space S2, and the ballast accommodating portion 316 accommodates the ballast 317 that controls the lighting state of the light source 311.

Further, in the present embodiment, the lamp 31 is attached with a fall prevention member 318 that prevents the lamp 31 from coming off the adapter 32 and falling to the ground or the like. The fall prevention member 318 includes a fall prevention wire 318a having one end attached to the lamp 31, a screw joint 318b attached to the other end of the fall prevention wire 318a, and a fall prevention rod 318c connected to the screw joint 318b. , Is equipped.

Here, in the present embodiment, the lamp 31 has a mounting portion 312a whose shape, diameter, and other sizes do not match the mounting side mounting portion (upper end portion 221) of the installation side member 20. Specifically, the strut portion 22 (upper end portion 221) is formed so that the outer diameter is about 120 mm, whereas the lamp 31 is formed with a mounting portion 312b having an outer diameter of about 40 mm. ing.

As described above, in the present embodiment, the diameter of the strut portion 22 (upper end portion 221) and the diameter of the mounting portion 312b of the lamp 31 are different, and the mounting portion 321b of the lamp 31 is mounted on the installation side mounting portion (upper end portion 221). It has a configuration that cannot be directly attached to.

Therefore, in the present embodiment, the mounting portion 312a of the lamp 31 is attached to the mounting side mounting portion (upper end portion 221) of the installation side member 20 via the adapter 32 described above.

In this way, the adapter 32 is used to attach the lamp 31 having the mounting portion 312a whose shape, diameter, and other sizes do not match the mounting side mounting portion (upper end portion 221) of the installation side member 20 to the installation side member 20. It is used.

Then, if such an adapter 32 is used, the existing strut portion 22 is provided with a mounting portion 321b having a size different from that of the installation side mounting portion (upper end portion 221) without replacing the existing strut portion 22. The lamp tool 31 to be held can be attached.

In the present embodiment, the adapter 32 has a tubular shape that penetrates vertically, and the adapter 32 is attached to a mounting portion to which the mounting portion 321b of the lamp 31 is mounted and a mounting portion (upper end portion 221) on the installation side. A mounting portion (mounting portion on the lamp side) is formed.

Specifically, a tubular large-diameter portion 321 having an inner diameter slightly larger than the outer diameter of the installation-side mounting portion (upper end portion 221) and a tubular large-diameter portion 321 arranged above the large-diameter portion 321 of the mounting portion 321b of the lamp 31. It is provided with a tubular small diameter portion 322 having an outer diameter slightly smaller than the inner diameter (see FIG. 4).

Further, the adapter 32 includes a connecting wall 323 that connects the upper portion of the large diameter portion 321 and the lower portion of the small diameter portion 322, and the large diameter portion 321 and the small diameter portion 322 are concentrically connected by the connecting wall 323. ing. In such an adapter 32, for example, a hole into which a small-diameter cylinder can be fitted is formed in the center of a wall portion that closes one end of the large-diameter cylinder, and the tip of the small-diameter cylinder is fitted into this hole. It can be obtained by making it and fixing it by welding or the like. The adapter 32 is formed so that the outer diameter of the large diameter portion 321 is about 140 mm and the outer diameter of the small diameter portion 322 is about 38 mm.

Then, in the present embodiment, the large-diameter portion 321 having the opening 321a formed downward functions as a mounting portion (lamp-side mounting portion) to be mounted on the installation-side mounting portion (upper end portion 221). Further, the small diameter portion 322 having the opening 322a formed above is made to function as a mounting portion to which the mounting portion 321b of the lamp 31 is mounted.

Further, in the present embodiment, the set bolt 50 is attached to the side portion of the large diameter portion 321. Specifically, three set bolts 50 are provided at equal intervals in the circumferential direction on the upper part of the side portion of the large diameter portion 321 (see FIG. 5). A set bolt 50 is also provided below each of the three set bolts (see FIG. 4). As described above, in the present embodiment, six set bolts 50 are provided on the side portion of the large diameter portion 321.

Then, with the upper end portion 221 inserted into the large diameter portion 321 from the opening 321a, the large diameter portion 321 is fixed to the upper end portion 221 by pressing the outer surface 221c of the upper end portion 221 with the tip of the set bolt 50. (See Fig. 5). The insertion of the upper end portion 221 into the large diameter portion 321 is regulated by the connecting wall 323.

On the other hand, the lamp 31 can be attached to the adapter 32 by inserting the small diameter portion 322 of the adapter 32 into the attachment portion 321b. It is also possible to fix the lamp 31 to the adapter 32 by using the fixing member such as the set bolt 50 described above.

Here, in the present embodiment, with the installation side mounting portion (upper end portion 221) inserted inside the large diameter portion 321, there is a gap between the outer surface 221c of the upper end portion 221 and the inner surface 321b of the large diameter portion 321. D1 is formed. By forming such a gap D1, the insertability of the installation side mounting portion (upper end portion 221) into the large diameter portion 321 is improved.

However, if a gap D1 is formed between the outer surface 221c of the upper end portion 221 and the inner surface 321b of the large diameter portion 321, the upper end portion 221 may be inserted into the large diameter portion 321 in a misaligned state. There is. That is, in a state where the upper end portion 221 is inserted into the large diameter portion 321, the center of the upper end portion 221 and the center of the large diameter portion 321 may be misaligned. As a result, the lamp 31 may be attached to the installation side member 20 in a state of being deviated from the center of the upper end portion 221.

Therefore, it is preferable to provide a spacer that fills the gap D1 formed between the outer surface 221c of the upper end portion 221 and the inner surface 321b of the large diameter portion 321 so that the misalignment can be suppressed more reliably.

At this time, a plurality of spacers are welded to the inner surface 321b of the large diameter portion 321 along the circumferential direction so that when the upper end portion 221 is inserted into the large diameter portion 321, the gap D1 is filled by the plurality of spacers. Can be considered.

However, if a plurality of spacers are welded to the inner surface 321b of the large diameter portion 321, it takes time and effort to manufacture the adapter 32. Further, since it is difficult to align the protrusion amounts of the spacers at the time of welding, the protrusion amounts of a plurality of spacers may not be the same. When such an adapter is used, the lamp 31 is in a state where the center is deviated from the center of the upper end portion 221. May be attached to the installation side member 20.

Therefore, in the present embodiment, the spacer member 40, which can be manufactured more easily and can more reliably suppress the misalignment of the lamp 31, is used.

Specifically, the gap D1 is filled by using a spacer member 40 formed of a member different from the adapter 32 and the support column 22.

That is, the outdoor lamp 10 is formed of a member different from the installation side member 20 and the lamp side member 30, and a part of the outdoor light 10 is a lamp side mounting portion (larger) than the outer surface (outer surface) 221c of the installation side mounting portion (upper end portion 221). A spacer member 40 arranged on the inner surface 321b side of the diameter portion 321) is provided.

The spacer member 40 can be formed using, for example, a metal material such as stainless steel, but is not limited to this, and can be formed using various materials.

In the present embodiment, as shown in FIGS. 6 and 7, the lower side (one side) of the spacer member 40 has a diameter smaller than the inner diameter of the installation side mounting portion (upper end portion 221), and the upper side (other side) is installed. It has a weight stand shape with a diameter larger than the outer diameter of the side mounting portion (upper end portion 221). Specifically, the spacer member 40 has a conical trapezoidal tubular shape, and the spacer member 40 is formed with a through hole 40a penetrating in the vertical direction. The through hole 40a is provided for inserting an electric wiring, a fall prevention member 318, or the like.

Then, the spacer member 40 having such a shape is supported by the installation side mounting portion (upper end portion 221). Specifically, the small diameter side (lower side) of the spacer member 40 is inserted into the internal space of the upper end portion 221 from the opening 221a, and a portion having the same diameter as the inner diameter of the upper end portion 221 of the spacer member 40 is formed on the upper end portion 221. It is in contact with the inner edge (tip surface 221b). By doing so, the spacer member 40 is supported by the upper end portion 221. At this time, the large diameter side (upper side) of the spacer member 40 projects from the outer surface (outer surface) 221c of the upper end portion 221 to the inner surface 321b side of the large diameter portion (lamp side mounting portion) 321 of the adapter 32 (FIG. 7 (b)).

As described above, in the present embodiment, the portion of the truncated cone-shaped spacer member 40 having a diameter smaller than the inner diameter of the upper end portion 221 is the inserted portion 41, and the portion having a diameter larger than the outer diameter of the upper end portion 221 is. It is a protruding portion 42. The outer surface 43 of the outer surface 43 of the truncated cone-shaped spacer member 40 having the same diameter as the inner diameter of the upper end portion 221 is the contact portion 44.

The contact portion 44 of the spacer member 40 is a support portion supported by the installation side mounting portion (upper end portion 221).

That is, in the present embodiment, the spacer member 40 includes a support portion (contact portion 44) supported by the installation side mounting portion (upper end portion 221). Further, the spacer member 40 has a larger diameter portion (lamp side mounting portion) of the adapter 32 than the outer surface (outer surface) 221c of the upper end portion 221 in a state where the support portion (contact portion 44) is supported by the upper end portion 221. A protruding portion 42 projecting toward the inner surface 321b of the 321 is provided.

The spacer member 40 is formed so that the maximum diameter (upper end diameter) is slightly smaller than the inner diameter of the large diameter portion (lamp side mounting portion) 321 of the adapter 32. In the present embodiment, the maximum diameter (upper end diameter) of the spacer member 40 is set to be about 2 mm to 5 mm smaller than the inner diameter of the large diameter portion (lamp side mounting portion) 321 of the adapter 32.

Then, in a state where the spacer member 40 is supported (contacted) with the upper end portion 221 and the upper end portion 221 is inserted into the large diameter portion (lamp side mounting portion) 321, the upper end portion 221 can be inserted into the center of the upper end portion 221. The misalignment of the large diameter portion 321 with the center can be suppressed by the protruding portion 42.

That is, the displacement between the center of the upper end portion 221 and the center of the large diameter portion 321 can be suppressed only by placing the spacer member 40 on the upper end portion 221.

It is also possible to use the spacer member 40A shown in FIG. 8 instead of the spacer member 40.

The spacer member 40A can also be formed by using various materials such as stainless steel.

As shown in FIG. 8, the spacer member 40A is connected to a tubular portion 45 having an outer diameter slightly smaller than the inner diameter of the installation side mounting portion (upper end portion 221) and the tubular portion 45, and has an outer diameter. It is provided with a flange portion 46 having a diameter larger than the outer diameter of the installation side mounting portion (upper end portion 221). The spacer member 40A is also formed with a through hole 40a penetrating in the vertical direction.

Then, the spacer member 40A having such a shape is supported by the installation side mounting portion (upper end portion 221). Specifically, the tubular portion 45 of the spacer member 40A is inserted into the internal space of the upper end portion 221 from the opening 221a, and the inner peripheral side of the lower surface 46a of the flange portion 46 of the spacer member 40A is the tip surface of the upper end portion 221. It is made to come into contact with 221b. By doing so, the spacer member 40A is supported by the upper end portion 221. At this time, the spacer member 40A is in a state in which the outer peripheral side of the flange portion 46 is projected from the outer surface (outer surface) 221c of the upper end portion 221 to the inner surface 321b side of the large diameter portion (lamp side mounting portion) 321 of the adapter 32. Then, it will be supported by the upper end portion 221 (see FIG. 8B).

As described above, in the spacer member 40A shown in FIG. 8, the tubular portion 45 is the inserted portion 41, and the outer peripheral side of the flange portion 46 (the portion having a diameter larger than the outer diameter of the installation side mounting portion) protrudes. It is part 42. In the spacer member 40A shown in FIG. 8, a portion of the lower surface 46a of the flange portion 46 that comes into contact with the tip surface 221b of the upper end portion 221 (the inner peripheral edge portion of the lower surface 46a of the flange portion 46) becomes the contact portion 44. ing. Further, the contact portion 44 of the spacer member 40A is a support portion supported by the installation side mounting portion (upper end portion 221).

As described above, the spacer member 40A shown in FIG. 8 includes a support portion (contact portion 44) supported by the installation side mounting portion (upper end portion 221). Further, the spacer member 40A has a larger diameter portion (lamp side mounting portion) of the adapter 32 than the outer surface (outer surface) 221c of the upper end portion 221 in a state where the support portion (contact portion 44) is supported by the upper end portion 221. A protruding portion 42 projecting toward the inner surface 321b of the 321 is provided.

The diameter of the flange portion 46 of the spacer member 40A is slightly smaller than the inner diameter of the large diameter portion (lamp side mounting portion) 321 of the adapter 32. In the present embodiment, the diameter of the flange portion 46 is set to be about 2 mm to 5 mm smaller than the inner diameter of the large diameter portion (lamp side mounting portion) 321 of the adapter 32.

Therefore, if the upper end portion 221 is inserted into the large diameter portion (lamp side mounting portion) 321 while the spacer member 40A is supported (contacted) with the upper end portion 221, the upper end portion 221 can be inserted into the center of the upper end portion 221. The misalignment of the large diameter portion 321 with the center can be suppressed by the protruding portion 42.

That is, the displacement between the center of the upper end portion 221 and the center of the large diameter portion 321 can be suppressed only by placing the spacer member 40A on the upper end portion 221.

(Second Embodiment)
The outdoor light (lighting device) 10 according to the present embodiment also has an installation side member 20 installed on the sidewalk surface (installation surface) 2a of the sidewalk 2 and a lamp 31, and the lamp side attached to the upper part of the installation side member 20. A member 30 is provided (see FIG. 9).

In the present embodiment, the installation side member 20 includes a substantially cylindrical (cylindrical) support column portion 22B, and electrical wiring, a fall prevention member 318, and the like are housed inside the support column portion 22B. The upper end (tip) 221 of the support column 22B is a cylindrical (cylindrical) installation-side mounting portion having an opening 221a that opens upward, and the upper end (tip: installation). The lamp side member 30 is attached to the side attachment portion) 221.

Here, in the present embodiment, the upper end portion (tip portion: installation side mounting portion) 221 includes a large diameter portion 222 formed on the sidewalk surface (installation surface) 2a side and a small diameter portion 223 formed on the tip side. , A continuous portion for connecting the large diameter portion 222 and the small diameter portion 223 is provided. Further, in the present embodiment, the continuous portion is connected to the lower end of the small diameter portion 223 and extends substantially in parallel with the inclined portion 224 whose diameter increases toward the lower side, and the lower end of the inclined portion 224. It is provided with a stepped portion 225 that is connected to the upper end of the large diameter portion 222.

On the other hand, the lamp side member 30 includes a substantially spherical lamp 31 having a light source unit 311. The lamp 31 basically has the same configuration as the lamp 31 shown in the first embodiment.

Further, also in the present embodiment, the lamp 31 has a mounting portion 312a whose shape, diameter, and other sizes do not match the upper end portion (tip portion: mounting side mounting portion) 221 of the installation side member 20. Specifically, the strut portion 22B (large diameter portion 222) is formed so that the outer diameter is about 60 mm, whereas the lamp 31 is formed with a mounting portion 312b having an outer diameter of about 80 mm. Has been done. Therefore, the mounting portion 312a of the lamp 31 is mounted on the mounting side mounting portion (upper end portion 221) of the mounting side member 20 via the adapter 32B.

The adapter 32B has a tubular shape that penetrates vertically, and the adapter 32B has a mounting portion to which the mounting portion 321b of the lamp 31 is mounted and a mounting portion (lamp) to be mounted to the mounting side mounting portion (upper end portion 221). A side mounting portion) is formed. The outer diameter of the adapter 32B is formed to be about 76 mm.

In the present embodiment, the adapter 32B has a tubular shape having substantially the same diameter from the lower end to the upper end, and a support rod 326 is attached to the inside of the adapter 32B by welding or the like.

The upper end portion 324 of the adapter 32B is a cylindrical (cylindrical) attachment portion having an opening 324a that opens upward, and the lamp 31 is attached to this attachment portion.

On the other hand, the lower end portion 325 of the adapter 32B is a cylindrical (cylindrical) lamp side mounting portion in which an opening 325a that opens downward is formed, and the upper end portion of the support column portion 22B ( Tip portion: installation side mounting portion) 221 is mounted.

Further, in the present embodiment, the set bolt 50 is attached to the side portion of the lower end portion 325 of the adapter 32B. Then, with the upper end portion 221 inserted from the opening 325a into the lower end portion 325, the lower end portion 325 is fixed to the large diameter portion 222 by pressing the outer surface 222a of the large diameter portion 222 with the tip of the set bolt 50. (See Fig. 9).

In the present embodiment, the tip surface 223a of the small diameter portion 223 comes into contact with the support rod 326 to restrict the insertion of the upper end portion 221 into the adapter 32B.

On the other hand, the lamp 31 can be attached to the adapter 32B by inserting the upper end portion 324 of the adapter 32B into the attachment portion 321b. Also in this embodiment, the lamp 31 can be fixed to the adapter 32B by using the fixing member such as the set bolt 50 described above.

Here, also in the present embodiment, with the installation side mounting portion (upper end portion 221) inserted inside the lower end portion 325 of the adapter 32B, the outer surface 222a of the large diameter portion 222 and the inner surface of the lower end portion 325 of the adapter 32B. A gap D2 is formed between the 325b and the 325b. By forming such a gap D2, the insertability of the installation side mounting portion (upper end portion 221) into the lower end portion 325 of the adapter 32B is improved.

Therefore, also in the present embodiment, the spacer member 40B, which can be manufactured more easily and can more reliably suppress the misalignment of the lamp 31, is used.

Specifically, the gap D2 is filled by using a spacer member 40B formed of a member different from the adapter 32B and the support column 22B.

The spacer member 40B can also be formed by using various materials such as stainless steel.

As shown in FIGS. 10 and 11, the spacer member 40B has an annular portion 47, and the spacer member 40B also has a through hole 40a penetrating in the vertical direction.

In the present embodiment, the through hole 40a has a truncated cone shape that shrinks in diameter toward the upper side. The diameter of the lower end of the through hole 40a is smaller than the outer diameter of the large diameter portion 222, and the diameter of the upper end is larger than the outer diameter of the small diameter portion 223. Further, in the present embodiment, the inner surface 47a of the annular portion 47 is an inclined surface that comes into surface contact with the outer inclined surface 224a of the inclined portion 224. That is, the inclination angle of the inner surface 47a of the annular portion 47 and the inclination angle of the outer inclined surface 224a of the inclined portion 224 are set so that the diameter of the lower end of the through hole 40a and the diameter of the lower end of the inclined portion 224 are substantially the same. Are made to be approximately the same angle.

Then, the spacer member 40B having such a shape is supported by the installation side mounting portion (upper end portion 221). Specifically, the upper end portion 221 is inserted into the through hole 40a of the spacer member 40B, and the inner surface 47a of the annular portion 47 is brought into surface contact with the outer inclined surface 224a of the inclined portion 224, while the inner circumference of the lower surface 47b of the annular portion 47 is brought into surface contact. The side is brought into surface contact with the stepped surface 225a of the stepped portion 225. By doing so, the spacer member 40B is supported by the upper end portion 221. At this time, the outer peripheral side of the annular portion 47 of the spacer member 40B protrudes from the outer surface (outer surface) 222a of the large diameter portion 222 to the inner surface 325b side of the lower end portion 325 of the adapter 32B (see FIG. 9).

As described above, in the present embodiment, the portion of the annular portion 47 of the spacer member 40B having a diameter larger than the outer diameter of the large diameter portion 222 is the protruding portion 42, and the inner surface 47a and the lower surface 47b of the spacer member 40B are inner. The peripheral side is the contact portion 44.

The contact portion 44 of the spacer member 40B is a support portion supported by the installation side mounting portion (upper end portion 221).

As described above, also in this embodiment, the spacer member 40B includes a support portion (contact portion 44) supported by the installation side mounting portion (upper end portion 221). Further, the spacer member 40B has a lower end portion of the adapter 32B rather than the outer surface (outer surface) 222a of the large diameter portion (installation side mounting portion) 222 in a state where the support portion is supported by the upper end portion (installation side mounting portion) 221. (Lighting fixture side mounting portion) A protruding portion 42 projecting toward the inner surface 325a side of the 325 is provided.

The spacer member 40B is formed so that the outer diameter of the annular portion 47 is slightly smaller than the inner diameter of the lower end portion (lamp side mounting portion) 325 of the adapter 32. In the present embodiment, the outer diameter of the annular portion 47 is set to be about 2 mm to 5 mm smaller than the inner diameter of the lower end portion (lamp side mounting portion) 325 of the adapter 32.

Then, if the upper end portion 221 is inserted into the lower end portion (lamp side mounting portion) 325 with the spacer member 40B supported (contacted) with the upper end portion 221, the center and lower end of the upper end portion 221 can be inserted. The misalignment with the center of the portion 325 can be suppressed by the protruding portion 42.

That is, the positional deviation between the center of the upper end portion 221 and the center of the lower end portion 325 can be suppressed only by placing the spacer member 40B on the upper end portion 221.

The inner surface 47a of the annular portion 47 may not be inclined and may be a surface extending in the vertical direction. That is, the shape of the through hole 40a may be a columnar shape having substantially the same diameter as the diameter of the lower end of the inclined portion 224.

Hereinafter, the characteristic configuration of the outdoor light (lighting device) 10 shown in each of the above embodiments and the effect obtained by the characteristic configuration will be described.

(1) The lighting device (outside light 10) has a tubular installation-side mounting portion (tip portion 221) and includes an installation-side member 20 to be installed on the installation surface (sidewalk surface 2a). Further, it has a lamp 31 and a tubular lamp side mounting portion (large diameter portion 321 and lower end portion 325) into which the installation side mounting portion is inserted, and includes a lamp side member 30 to be attached to the installation side member 20. .. Further, the installation side member 20 and the lamp side member 30 are formed of separate members, and a part thereof is the inner surface (inner surface 321a or inner surface) of the lamp side mounting portion rather than the outer surface (outer surface 221c or outer surface 222a) of the installation side mounting portion. It includes spacer members 40, 40A, and 40B arranged on the 325b) side.

Further, the spacer member is supported by the support portion (contact portion 44) supported by the installation side mounting portion and the installation side mounting portion, and is on the inner surface side of the lamp side mounting portion with respect to the outer surface of the installation side mounting portion. It is provided with a projecting portion 42 projecting to the surface.

In this way, when the installation side mounting portion is inserted into the lamp side mounting portion, the positional deviation between the center of the lamp side mounting portion and the center of the installation side mounting portion can be suppressed by the protruding portion 42. As a result, it is possible to prevent the lamp 31 from being attached to the installation side member 20 in a state of being deviated from the center of the installation side attachment portion.

Further, if the spacer member is a member independent of the installation side member 20 and the lamp side member 30, the manufacturing process can be reduced as compared with the case where the spacer is welded to the inner surface of the lamp side mounting portion.

Further, since the misalignment of the lamp 31 can be suppressed only by placing the spacer member on the mounting portion on the installation side, the lighting device 10 in which the misalignment of the lamp 31 is suppressed can be more easily assembled. You will be able to do it.

Further, if the spacer member is a member independent of the installation side member 20 and the lamp side member 30, the amount of protrusion of the spacers will not be uniform as in the case of welding a plurality of spacers to the inner surface of the lamp side mounting portion. It is possible to avoid it. As a result, it becomes possible to more reliably prevent the lamp 31 from being attached to the installation side member 20 in a state of being deviated from the center of the installation side attachment portion.

As described above, if the configuration of the lighting device 10 is the configuration of the above (1), it can be manufactured more easily, and the misalignment of the lamp 31 can be suppressed more reliably.

(2) Further, in the configuration of the above (1), the spacer member may include an inserted portion 41 to be inserted inside the installation side mounting portion. Then, with the inserted portion 41 inserted inside the installation side mounting portion, the contact portion 44 that comes into contact with the tip of the installation side mounting portion may serve as the support portion.

By doing so, it is possible to prevent the spacer member mounted on the installation side mounting portion from being displaced from the installation side mounting portion or being detached from the installation side mounting portion. As a result, it becomes possible to more reliably prevent the lamp 31 from being attached to the installation side member 20 in a state of being deviated from the center of the installation side attachment portion.

(3) Further, in the configuration of (2) above, the shape of the spacer member is a weight stand shape in which one side has a diameter smaller than the inner diameter of the installation side mounting portion and the other side has a diameter larger than the outer diameter of the installation side mounting portion. It may be set to. The portion of the spacer member having a diameter smaller than the inner diameter of the installation side mounting portion is the inserted portion 41, and the portion having a diameter larger than the outer diameter of the installation side mounting portion is the protruding portion 42, which is the same as the inner diameter of the installation side mounting portion. The portion having a diameter may be the contact portion 44.

By doing so, the spacer member can be supported by the installation side mounting portions having various diameters, so that the spacer member can be made versatile.

(4) Further, in the configuration of (2) above, the spacer member is connected to the tubular portion 45 having an outer diameter slightly smaller than the inner diameter of the mounting portion on the installation side, and the outer diameter is increased. A flange portion 46 having a diameter larger than the outer diameter of the mounting portion on the installation side may be provided. Then, the tubular portion 45 is set to be the inserted portion 41, the portion having a diameter larger than the outer diameter of the mounting portion on the installation side of the flange portion 46 is set to be the protruding portion 42, and the inner peripheral edge portion of the flange portion 46 is formed. It may be the contact portion 44.

By doing so, it is possible to more reliably prevent the spacer member mounted on the installation side mounting portion from being displaced with respect to the installation side mounting portion or being detached from the installation side mounting portion. become able to.

(5) Further, in the configuration of (1) above, the installation side mounting portion has a large diameter portion 222 formed on the installation surface side, a small diameter portion 223 formed on the tip side, and a large diameter portion 222 and a small diameter portion. A continuous portion (inclined portion 224 and stepped portion 225) in which the 223 is continuously provided may be provided. Further, the spacer member is formed with a through hole 40a having a diameter smaller than the outer diameter of the large diameter portion 222 and a diameter larger than the outer diameter of the small diameter portion 223, and the outer diameter is larger than the outer diameter of the large diameter portion 222. An annular portion 47 may be provided. Then, in a state where the small diameter portion 223 is inserted through the through hole 40a and the annular portion 47 is in contact with the connecting portion, the portion having a larger diameter than the large diameter portion in the annular portion 47 becomes the protruding portion 42. May be good.

By doing so, it becomes possible to more reliably prevent the spacer member placed on the installation side mounting portion from coming off from the installation side mounting portion.

(6) Further, in any one of the configurations (1) to (5), the lamp side member 30 may include adapters 32 and 32B to which the lamp 31 is attached. Then, the adapters 32 and 32B may be formed with a lamp-side mounting portion into which the installation-side mounting portion is inserted.

In this way, various types of lamps 31 can be attached to the installation side member 20 in a state where the misalignment is suppressed.

(7) Further, it may be a spacer member included in the lighting device 10 having any one of the above configurations (1) to (6).

In this way, if the lighting device 10 is provided with the spacer member, the misalignment of the lamp 31 can be suppressed more reliably.

(8) Further, the spacer member is formed on the lamp side member having the lamp 31 rather than the outer surface of the tubular installation side mounting portion formed on the installation side member installed on the installation surface, and the installation side mounting portion is formed. It is arranged so that a part of it is located on the inner surface side of the tubular lamp-side mounting portion to be inserted. In the above embodiment, spacer members 40, 40A, and 40B are exemplified as such spacer members. Then, the spacer members 40, 40A, 40B are supported by the support portion (contact portion 44) supported by the installation side mounting portion and the lamp fixture by the installation side mounting portion, rather than the outer surface of the installation side mounting portion. It is provided with a protruding portion 42 projecting toward the inner surface side of the side mounting portion.

By using such spacer members 40, 40A, 40B, it becomes possible to obtain a lighting device 10 capable of more reliably suppressing the misalignment of the lamp 31.

Although the preferred embodiment of the present disclosure has been described above, the present embodiment is not limited to the above embodiment, and various modifications are possible.

For example, in the above-described embodiment and its modification, the outdoor light 10 installed on the sidewalk surface 2a of the sidewalk 2 has been exemplified as the lighting device, but the present invention is not limited thereto. For example, it may be an outdoor lighting device installed on the ground such as a garden or a garden (including a park), or it may be an indoor lighting device installed on a floor surface or a table surface.

Further, in the above-described embodiment and its modification, an example using four (plurality) light source units is illustrated, but a configuration using one light source unit is also possible. It is also possible to use two, three, five or more light source units. Further, when a plurality of light source units are used, it is not necessary to arrange the light source units in a circumferential shape, and the light source units can be arranged in a row or in a plane.

Further, in the above-described embodiment and its modification, the lamp-side member 30 including the adapter 32 is illustrated, but the present disclosure can also be applied to the lamp-side member 30 without the adapter 32.

Further, in the second embodiment, as the connecting portion for connecting the small diameter portion 223 and the large diameter portion 222, the one provided with the inclined portion 224 and the step portion 225 is exemplified, but the small diameter portion 223 and the large diameter portion 222 are used. It is also possible to have a configuration in which the above are connected only by the stepped portion 225 extending horizontally. In this case, it is preferable that the spacer member 40B is formed with a columnar through hole 40a having an inner diameter substantially the same as the outer diameter of the small diameter portion 223.

Further, in the above-described embodiment and its modification, an example in which an LED light source is used as a light source unit is illustrated, but a semiconductor light source or the like can also be used.

In addition, the lighting fixtures, adapters, and other detailed specifications (shape, size, layout, etc.) can be changed as appropriate.

2a Sidewalk surface (installation surface)
10 Outdoor light (lighting device)
20 Installation side member 221 Tip (installation side mounting part)
221c outer surface (outer surface)
222 Large diameter part 222a Outer side surface (outer surface)
223 Small diameter part 224 Inclined part (connecting part)
225 Stepped part (connecting part)
30 Lamp side member 31 Lamp 32 Adapter 321 Large diameter part (lamp side mounting part)
321b Inner surface 325 Lower end (lamp side mounting part)
325a Inner surface 40 Spacer member 40a Through hole 41 Inserted part 42 Protruding part 44 Contact part (support part)
45 Cylindrical part 46 Flange part 47 Ring part

Claims (8)

It has a tubular installation side mounting part, and the installation side member installed on the installation surface,
A lamp-side member having a lamp and a tubular lamp-side mounting portion into which the installation-side mounting portion is inserted, and a lamp-side member to be attached to the installation-side member,
A spacer member which is formed of a member separate from the installation side member and the lamp side member and is partially arranged on the inner surface side of the lamp side mounting portion with respect to the outer surface of the installation side mounting portion.
With
The spacer member
A support portion supported by the installation side mounting portion and
A protruding portion that protrudes toward the inner surface side of the lamp-side mounting portion from the outer surface of the installation-side mounting portion while being supported by the installation-side mounting portion.
A lighting device characterized by being provided with. The spacer member includes an inserted portion to be inserted inside the installation side mounting portion.
The first aspect of claim 1, wherein the abutting portion that comes into contact with the tip of the installation side mounting portion is the support portion in a state where the inserted portion is inserted inside the installation side mounting portion. Lighting device. The spacer member has a weight stand shape in which one side has a diameter smaller than the inner diameter of the installation side mounting portion and the other side has a diameter larger than the outer diameter of the installation side mounting portion.
A portion of the spacer member having a diameter smaller than the inner diameter of the installation-side mounting portion is the inserted portion, and a portion having a diameter larger than the outer diameter of the installation-side mounting portion is the protruding portion. The lighting device according to claim 2, wherein a portion having the same diameter as the inner diameter of the mounting portion on the installation side is the contact portion. The spacer member is connected to a tubular portion having an outer diameter slightly smaller than the inner diameter of the installation side mounting portion and the tubular portion, and the outer diameter is larger than the outer diameter of the installation side mounting portion. It has a flange part that becomes
The tubular portion is the insertion portion, the portion having a diameter larger than the outer diameter of the installation side mounting portion of the flange portion is the protrusion portion, and the inner peripheral edge portion of the flange portion is the protrusion. The lighting device according to claim 2, wherein the lighting device is a contact portion. The installation-side mounting portion includes a large-diameter portion formed on the installation surface side, a small-diameter portion formed on the tip side, and a continuous installation portion in which the large-diameter portion and the small-diameter portion are continuously provided. Ori
The spacer member has a through hole having a diameter smaller than the outer diameter of the large diameter portion and a diameter larger than the outer diameter of the small diameter portion, and the outer diameter is an annular portion having a diameter larger than the outer diameter of the large diameter portion. Is equipped with
In a state where the small diameter portion is inserted through the through hole and the annular portion is brought into contact with the connecting portion, a portion having a diameter larger than the large diameter portion in the annular portion is the protruding portion. The lighting device according to claim 1. The lamp side member includes an adapter to which the lamp is attached.
The lighting device according to any one of claims 1 to 5, wherein the adapter is formed with the lamp-side mounting portion into which the installation-side mounting portion is inserted. A spacer member included in the lighting device according to any one of claims 1 to 5. The tubular lamp side mounting formed on the lamp side member having the lamp and into which the installation side mounting portion is inserted, rather than the outer surface of the tubular installation side mounting portion formed on the installation side member installed on the installation surface. A spacer member that is arranged so that a part of it is located on the inner surface side of the portion.
A support portion supported by the installation side mounting portion and
A protruding portion that protrudes toward the inner surface side of the lamp-side mounting portion from the outer surface of the installation-side mounting portion while being supported by the installation-side mounting portion.
A spacer member comprising.

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