JP7003557B2 - lighting equipment - Google Patents

Description

The present invention relates to a lighting fixture.

In lighting fixtures such as street lamps that are attached to the tips of poles that are erected vertically from the ground, poles with different diameters are widely used instead of one type. In recent years, there has been a demand for a lighting fixture that can handle poles of a plurality of types with one.

As a conventional technique for corresponding to a plurality of types of diameters with one mounting member, a technique is known in which a protrusion for accepting pipes having different diameters is provided on the inner circumference of a tubular body to which pipes having different diameters are connected. (For example, see Patent Document 1).
In recent years, a pole receiving portion into which the tip of a pole is inserted is provided in a lighting fixture, and a connection structure like the protruding portion of Patent Document 1 is provided on the inner circumference of the pole receiving portion to provide a common lighting fixture with a diameter. Also known is a technique that allows the lamp to be fixed to a different pole (see, for example, Non-Patent Documents 1-3 and Patent Document 2). According to this technology, it is not necessary to prepare a luminaire for each diameter of the existing pole, and at the installation site of the luminaire, the pole receiving part of the luminaire does not match the diameter of the pole and cannot be installed. You can avoid such a situation.

Japanese Unexamined Patent Publication No. 56-6984 JP-A-2017-162685

LED Mall Light KAELUMINA "Kaerumina" Product Catalog, [online], June 2016, Panasonic Corporation, [Search on September 14, 2017], Internet <URL: http://panasonic.icata.net/iportal/ CatalogDetail.do?method=initial_screen&type=clcsr&volumeID=PEWJ0001&catalogID=4092690000> Mall Light XY7792LE9 Product Specifications, [online], Panasonic Corporation, [Search on September 14, 2017], Internet <URL: http://www2.panasonic.biz/es/catalog/lighting/products/detail/ shouhin.php? at = category & ct = shisetsu_catalog & id = S00123121 & hinban = XY7792 ＞ Mole Light Construction Manual Instruction Manual "For Preservation" Manual No. NNY22650-TA, NNY22650-TB, [online], Panasonic Corporation, [Search on September 14, 2017], Internet <URL: http://www2.panasonic.biz/es/catalog/lighting/products/detail /shouhin.php?at=category&ct=shisetsu_catalog&id=S00123121&hinban=XY7792 ＞

When the technique disclosed in Patent Document 1 is applied to a lighting fixture and a multi-step recess is provided in the pole receiving portion, only the tip portion of the pole having each diameter is supported by the lighting fixture. For example, when a pole with the smallest diameter applicable to a lighting fixture provided with a multi-step recess is attached to the pole receiving portion, the tip of this pole is abutted against the innermost part of the multi-step recess, and the innermost recess of the multi-step recess is used. The pole receiving portion is supported by the pole by pressing the circumference of the pole tip with the fixing screw provided on the side surface. On the other hand, when a pole with the thickest diameter is attached to the pole receiving part, the tip of this pole is abutted against the stepped surface closest to the opening of the multi-stage recess, so that the length of the pole entering this luminaire is the shortest. .. Then, the pole receiving portion is supported by the pole by pressing the periphery of the pole tip portion with the fixing screw provided on the side surface of the corresponding recess.

In either case, the support point by the fixing screw is close to the tip of the pole, so if the wind blows and the force (bending moment) that tries to tilt this luminaire is applied to the luminaire, the place where the fixing screw of the pole hits. It is conceivable that a very large stress will be generated in the pole and the pole will be deformed.
When a street lamp having a cylindrical mounting portion is attached to a cylindrical pole, the pole and the lighting fixture can be attached by providing support portions at least three places (preferably every 120 degrees) around the tip of the pole. The central axis of the portion can be aligned and supported. However, in an old pole, the pole may be deformed so that the end face of the pole is not flat and a local dent may occur. Also, the ends of the poles may be deformed and the circle may be distorted. In that case, in a street light that employs a three-point contact support structure, the poles may not evenly contact the support portion for mounting the poles, which may cause misalignment or insufficient mounting strength.

The present invention can handle a plurality of types of diameters with one, suppress the tilt of the luminaire when the pole is attached, and suppress the misalignment when fixing to the pole even if the tip of the pole is distorted. The purpose is to provide a lighting fixture that can be used.

The present invention is a luminaire having a tubular pole receiving portion into which the tip of a pole is inserted. The shell and the outer shell can be freely attached to the inside of the end surface, and the diameter is gradually reduced from the side of the pole insertion end into which the pole is inserted, and the diameter is smaller than the first diameter. An adapter provided with a plurality of steps on the inner surface to which the tip of the pole engages is provided , and a plurality of fixing portions for fixing the pole together with the adapter by screws are provided on the outer shell of the pole receiving portion. It is characterized in that it is provided at a position corresponding to the step portion closest to the pole insertion end.

The present invention is characterized in that, in the luminaire, the adapter has a plurality of steps having a multi-step cylindrical shape, and the tip of each step is an annular flat surface .

In the present invention, in the luminaire, the outer shell has a plurality of fixing portions for fixing the pole by the screws at equal intervals around the central axis of the pole receiving portion and along the central axis of the pole. A set of fixing portions located at both ends of the three locations at equal intervals along the insertion direction of the pole are arranged on the same straight line extending in the insertion direction of the pole. It is characterized by being provided in .

In the present invention, in the luminaire, on the outer peripheral surface of the adapter, a plurality of contact convex portions protruding in the radial direction of the adapter and extending in the pole insertion direction are formed around the central axis of the pole receiving portion, etc. It is characterized in that through holes formed at intervals and for passing the screw are formed at a portion corresponding to the fixing portion of the contact convex portion .

According to the present invention, it is possible to suppress misalignment when fixing the pole.

It is a perspective view which shows the structure of the street light which concerns on embodiment of this invention. It is a three-sided view which shows the whole composition of a street light, (A) is a front view, (B) is a top view, (C) is a bottom view. FIG. 2A is a cross-sectional view taken along the line III-III of FIG. 2A. It is a perspective view which shows the whole structure of a pole receiving part. It is a side view of a pole receiving part. FIG. 5 is a sectional view taken along line VI-VI of FIG. It is a figure which shows the structure of an adapter, (A) is a top view, (B) is a rear view.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing the overall configuration of the street light 1 according to the present embodiment. 2A and 2B are three views showing the overall configuration of the street light 1, FIG. 2A is a front view, FIG. 2B is a top view, and FIG. 2C is a bottom view.
The street light 1 is a lighting fixture used by being fixed to the tip of a pole 2 erected on the ground or the like, and emits illumination light and a cylindrical pole receiving portion 4 into which the tip of the pole 2 is inserted. The instrument main body 6 is provided, and the pole receiving portion 4 and the instrument main body 6 are fixed by screws 8.

FIG. 3 is a sectional view taken along line III-III of FIG. 2 (A).
The instrument main body 6 has a translucent case 12 for accommodating an arbitrary light source 10 such as an LED or a discharge lamp, and a pole receiving portion 4. The shape and structure of the instrument main body 6 are arbitrary.

FIG. 4 is a perspective view showing the overall configuration of the pole receiving portion 4, and FIG. 5 is a side view of the pole receiving portion 4. Further, FIG. 6 is a view of the pole receiving portion 4 as viewed from the VI-VI cross-sectional line of FIG.
The pole receiving portion 4 has a structure that can be fixed to a plurality of poles 2 having different tip diameters, and is housed in the outer shell 20 and the inside of the outer shell 20 as shown in FIGS. 3 and 6. The adapter 22 and a plurality of fixing portions 24 for fixing the pole receiving portion 4 to the pole 2 are provided, and the outer shell 20 and the adapter 22 are formed by casting using, for example, an aluminum alloy or the like.

As shown in FIG. 6, the outer shell 20 is a cylindrical member having an inner diameter D4, and a portion for fixing the instrument main body 6 with the above-mentioned screw 8 is integrally formed on the upper portion 20U thereof.
The adapter 22 is a cylindrical member provided inside the outer shell 20 when the street light 1 is fixed to a pole 2 having a diameter smaller than the inner diameter D4 of the outer shell 20, and is freely attached to the outer shell 20. Has been done. As shown in FIG. 6, on the inner surface of the adapter 22, a plurality of step portions 28-3, 28-2, 28 whose inner diameters gradually decrease from the side of the pole insertion end 4A to the inner diameters D3, D2, and D1. -1 is provided.

7A and 7B are views showing the configuration of the adapter 22, FIG. 7A is a top view, and FIG. 7B is a rear view.
As shown in FIG. 6, the adapter 22 has a multi-stage cylindrical shape in which the diameter is gradually reduced from the pole insertion end 4A to the upper portion 22U corresponding to the diameters of the inner step portions 28-3, 28-2, 28-1. An engaging convex portion 40 is formed on the upper portion 22U thereof.
As shown in FIG. 6, an engaging hole 42 with which the engaging convex portion 40 is engaged is formed at the tip 20A of the outer shell 20, and the engaging convex portion 40 and the engaging hole 42 are engaged with each other. Positions the adapter 22 inside the outer shell 20. Further, as shown in FIG. 7A, the engaging convex portion 40 is formed with a protruding portion 40A protruding in the radial direction, and the protruding portion 40A is caught in the engaging hole 42, whereby the outer shell 20 is formed. The adapter 22 is non-rotatably positioned around the central axis inside.
Further, as shown in FIG. 7B, a plurality of contact convex portions 44 are formed on the outer peripheral surface of the adapter 22 so as to project in the radial direction and extend in the pole insertion direction E. When the adapter 22 is positioned inside the outer shell 20, as shown in FIG. 3, a plurality of contact convex portions 44 abut on the inner peripheral surface 20B of the outer shell 20 and the adapter 22 inside the outer shell 20. Rattling is prevented.

In the pole receiving portion 4, as shown in FIG. 6, the tips 20A of the outer shell 20 and the tips 28A1, 28A2, 28A3 of the respective steps 28-1, 28-2, 28-3 of the adapter 22 are respectively. , It is formed on an annular plane having a diameter corresponding to the inner diameters D4, D1, D2, and D3. Further, the inner peripheral surface 20B of the outer shell 20 and the inner peripheral surfaces 28B1, 28B2, 28B3 of each step 28-1, 28-2, 28-3 of the adapter 22 have tips 20A, 28A1, 28A2, 28A3, respectively. It is formed in a tapered shape that slightly expands from the pole insertion end 4A to the side of the pole insertion end 4A.

The fixing portion 24 is for fixing the pole receiving portion 4 to the pole 2 by screwing, and as shown in FIG. 2C, the fixing portion 24 is equidistant around the central axis K of the pole receiving portion 4 (in the present embodiment). , 120 degree intervals). On the outer peripheral surface of the outer shell 20, a screw hole 32 to be screwed into the pole fixing screw 30 is formed at the position of each fixing portion 24, and the screw hole 32 corresponding to the screw hole 32 of the adapter 22 is located at the position corresponding to FIG. As shown in A), a through hole 46 through which the pole fixing screw 30 is passed is formed at the position of the fixing portion 24. The pole fixing screw 30 is screwed into each screw hole 32, and the tip portion 30A of each pole fixing screw 30 comes into contact with the outer peripheral surface of the pole 2 and is tightened from the outside of the pole 2 to tighten the pole receiving portion 4 to the pole. Fix it to 2.
Further, in the adapter 22, the contact convex portion 44 is formed at the position of the fixed portion 24, and the through hole 46 is formed in the contact convex portion 44, so that the through hole 46 of the adapter 22 is outside. The shell 20 is substantially in communication with the screw hole 32, and the pole fixing screw 30 can be easily screwed.

In the present embodiment, each of the fixing portions 24 is near the pole insertion end 4A, and more specifically, as shown in FIG. 6, a range of a predetermined height L from the pole insertion end 4A along the pole insertion direction E. It is provided inside. The upper end La of this height L is the position of the tip 28A3 of the step 28-3 closest to the pole insertion end 4A among the step 28-1, 28-2, 28-3 of the adapter 22, or the position thereof. It is set closer to the pole insertion end 4A than the position.

Under such a configuration, when the street light 1 is fixed to the pole 2 having the tip diameter D4, the pole 2 is inserted into the outer shell 20 without using the adapter 22, and the tip has diameters D1, D2, D3. When the street light 1 is fixed to any of the poles 2, the adapter 22 is provided inside the outer shell 20, and the pole 2 is inserted into the adapter 22. Then, the tip of the inserted pole 2 is abutted against the outer shell 20 or the adapter 22, and the end surface of the tip of the pole 2 is the tip 20A of the outer shell 20 or each step portion 28-1, 28-2 of the adapter 22. It is brought into contact with the tips 28A1, 28A2, 28A3 of 28-3. Next, the pole fixing screw 30 is screwed into each of the screw holes 32 of the plurality of fixing portions 24, and the pole receiving portion 4 is fixed to the pole 2.

In this pole fixing structure, since the fixing portion 24 is provided in the range of the height L, the poles are provided in the range of the height L regardless of which pole 2 has a different diameter. Since 2 is fixed, the work is unified and the workability is improved.
Further, since the fixing portion 24 is fixed at a position away from the engaging portion of the tip of the pole 2 (that is, the tips 20A, 28A1, 28A2, 28A3), for example, the fixing portion 24 is fixed at a position higher than the upper end La of the height L (pole insertion). Stable fixing can be realized as compared with the configuration provided at the position (position away from the end 4A).
Further, since the adapter 22 is not used when the street light 1 is fixed to the pole 2 having the largest diameter, the tip of the pole 2 can be inserted to the tip 20A of the outer shell 20 and fixed. When the step portion is provided directly on the inner surface of the outer shell 20 according to the prior art, the entry dimension of the thickest pole 2 (the amount at which the tip of the pole 2 enters the outer shell 20) becomes the smallest. The larger the value "entrance ratio" obtained by dividing the entry dimension of the pole 2 by the diameter of the pole 2, the more stably the pole 2 can be supported. That is, in the prior art, when the street light is attached to the thickest pole 2, the "entrance ratio" becomes the smallest and the attachment becomes unstable. On the other hand, by adopting the structure of the present invention, the "entry ratio" can be increased and the attachment of the street light 1 to the thick pole 2 is stabilized as compared with the case where the step portion is directly provided on the inner surface of the outer shell 20. be able to.

Further, when the pole 2 comes into contact with the tips 20A, 28A1, 28A2, 28A3 of the pole receiving portion 4 due to the distortion of the tip of the pole 2, the axis of the pole 2 becomes the outer shell 20 or the central axis C of the adapter 22. Even if a so-called misalignment occurs, which is deviated from (FIG. 6), if the structure of the pole receiving portion 4 of the present embodiment is adopted, the end surface of the pole 2 may be flattened by any of the tips 20A, 28A1, 28A2, and 28A3. By receiving it, the contact state with the end surface of the pole 2 does not change depending on the direction of the street light 1, and it can be stably supported. Further, since the inner wall around the end face has a cylindrical side surface, it is possible to minimize the deviation of the central axis between the pole 2 and the mounting portion of the street light 1 even if the end portion of the pole 2 is not completely circular.

Here, in the pole receiving portion 4 of the present embodiment, as shown in FIG. 3, the fixing portions 24 are arranged at three locations L1, L2, and L3 at substantially equal intervals along the pole insertion direction E. .. Looking at the circumferential direction of the outer shell 20, fixing portions 24 are provided at two locations L2 at the center of these three locations L1, L2, and L3, which are displaced by 120 degrees in the circumferential direction. In this way, the fixing portions 24 provided on the location L1 or the location L3 and the two fixing portions 24 provided on the location L2 are substantially equally spaced around the central axis of the pole receiving portion 4. By being provided at three locations, the insertion amount of the pole fixing screw 30 of each fixing portion 24 can be appropriately adjusted, and the above-mentioned misalignment can be accurately suppressed. Moreover, since the pole fixing screw 30 is arranged at a position sufficiently distant from the tip of the pole 2, it is easy to suppress the inclination of the street light 1.

Further, among the fixing portions 24 provided at the three locations L1, L2, and L3, the pair of fixing portions 24 of the locations L1 and L3 at both ends of the pole insertion direction E are provided in the pole insertion direction E as shown in FIG. Since it is provided on the same straight line, screwing is easy. Further, since the location L2 is arranged at the intermediate portion between the location L1 and the location L3, it is easy to adjust the inclination of the street light 1 when the street light 1 is attached to the pole 2. Further, since the distance between the points L1 and the points L3 is large, the pole fixing screw 30 is used for the above-mentioned technical problem that the force (bending moment) for tilting the street light 1 due to the wind blows is applied to the appliance. It is possible to reduce the stress generated at the point of contact.

As described above, according to the present embodiment, the following effects are obtained.

The pole receiving portion 4 is provided with a plurality of fixing portions 24 for fixing the pole 2 at the position of the step portion 28-3 closest to the pole insertion end 4A, that is, within the range of the height L.
As a result, the pole 2 is fixed by the same fixing portion 24 regardless of which pole 2 has a different diameter, so that the work can be unified and the workability can be improved. Further, since the pole 2 is fixed at a position away from the engaging portion at the tip of the pole 2, stable fixing can be realized.
Further, since the fixing portion 24 is fixed at a position away from the engaging portion (that is, the tips 20A, 28A1, 28A2, 28A3) of the tip of the pole 2, for example, the fixing portion 24 is set at a position higher than the upper end La of the height L (pole insertion end). Stable fixing can be realized as compared with the configuration provided at a position (position away from 4A).
Further, when the street light 1 is fixed to the pole 2 having the largest diameter, the tip of the pole 2 can be inserted to the tip 20A of the outer shell 20 and fixed. When the step portion is provided directly on the inner surface of the outer shell 20 according to the prior art, the entry dimension of the thickest pole 2 (the amount at which the tip of the pole 2 enters the outer shell 20) becomes the smallest. The larger the value "entrance ratio" obtained by dividing the entry dimension of the pole 2 by the diameter of the pole 2, the more stably the pole 2 can be supported. That is, in the prior art, when the street light is attached to the thickest pole 2, the "entrance ratio" becomes the smallest and the attachment becomes unstable. On the other hand, by adopting the structure of the present invention, the "entry ratio" can be increased and the attachment of the street light 1 to the thick pole 2 is stabilized as compared with the case where the step portion is directly provided on the inner surface of the outer shell 20. be able to.
Further, when the pole 2 comes into contact with the tips 20A, 28A1, 28A2, 28A3 of the pole receiving portion 4 due to the distortion of the tip of the pole 2, the axis of the pole 2 becomes the outer shell 20 or the central axis C of the adapter 22. Even if a so-called misalignment occurs, which is deviated from (FIG. 6), if the structure of the pole receiving portion 4 of the present embodiment is adopted, the end face of the pole 2 may be flattened by any of the tips 20A, 28A1, 28A2, and 28A3. By receiving it, the contact state with the end surface of the pole 2 does not change depending on the direction of the street light 1, and it can be stably supported.
Further, in the present embodiment, since the inner wall around the end face has a cylindrical side surface, the deviation of the central axis between the pole 2 and the mounting portion of the street light 1 is minimized even if the end portion of the pole 2 is not completely circular. It can be suppressed.

In the present embodiment, since the fixing portions 24 are arranged at equal intervals around the central axis K of the pole receiving portion 4, the pole 2 can be fixed evenly from the circumferential direction.

In the present embodiment, since the fixing portions 24 are arranged at three equidistant locations L1, L2, and L3 along the pole insertion direction E, the insertion amount of the pole fixing screws 30 of each of the fixing portions 24 is appropriately adjusted. By adjusting to, the misalignment can be suppressed more accurately. Moreover, since the pole fixing screw 30 is arranged at a position sufficiently distant from the tip of the pole 2, it is easy to suppress the inclination of the street light 1.

In the present embodiment, a set of fixing portions 24 located at both ends L1 and L3 of these three locations L1, L2, and L3 are provided on the same straight line extending in the pole insertion direction E, and thus a screw. The workability of stopping can be improved. Further, since the location L2 is arranged at the intermediate portion between the location L1 and the location L3, it is easy to adjust the inclination of the street light 1 when the street light 1 is attached to the pole 2. Further, since the distance between the points L1 and the points L3 is large, the pole fixing screw 30 is used for the above-mentioned technical problem that the force (bending moment) for tilting the street light 1 due to the wind blows is applied to the appliance. It is possible to reduce the stress generated at the point of contact.

In the present embodiment, the pole receiving portion 4 is provided with a cylindrical outer shell 20 into which a pole 2 having a diameter D4 is inserted, and a plurality of pole receiving portions 4 having a tip that is smaller than the diameter D4 and is freely attached to the outer shell 20. The adapter 22 is provided with a pole 2 having diameters D1, D2, and D3 inserted therein, and a plurality of step portions 28-1, 28-2, and 28-3 are provided on the inner surface thereof.
In this configuration, since the adapter 22 is not used when the street light 1 is fixed to the pole 2 having the thickest diameter D4, the tip of the pole 2 can be inserted to the tip 20A of the outer shell 20 and fixed. As a result, the insertion dimension of the pole 2 (the amount by which the tip of the pole 2 enters the outer shell 20) is larger than that in the case where the thick pole 2 is received by the step portions 28-1, 28-2, 28-3 of the adapter 22. It is possible to stabilize the attachment of the street light 1 to the pole 2 having a large diameter.

It should be noted that the above-described embodiment is merely an example of one aspect of the present invention, and can be arbitrarily modified and applied without departing from the gist of the present invention.
For example, the present invention can be applied to any lighting fixture other than a street lamp as long as it is a lighting fixture fixed to the tip of a pole 2.

1 Street light (lighting equipment)
2 Pole 4 Pole receiving part 4A Pole insertion end 6 Instrument body 20 Outer shell 20A Tip 22 Adapter 24 Fixing part 28-1, 28-2, 28-3 Step part 28A1, 28A2, 28A3 Tip 30 Pole fixing screw (screw)
32 Thread hole 46 Through hole C Central axis E Pole insertion direction K Central axis of pole receiving part L Height D4 Inner diameter (diameter, first diameter)

Claims (4)

In a luminaire having a cylindrical pole receiving part into which the tip of a pole is inserted,
The pole receiving portion is
A cylindrical outer shell with an inner diameter into which a pole with the first diameter can be inserted from the opening of the end face,
The tip of the pole having a diameter smaller than the first diameter is gradually reduced in diameter from the side of the pole insertion end into which the pole is inserted so that it can be freely mounted inside the end surface of the outer shell. With an adapter provided on the inner surface with multiple steps to which it engages,
Equipped with
The outer shell of the pole receiving portion is characterized in that a plurality of fixing portions for fixing the pole together with the adapter by screws are provided at positions corresponding to the step portion closest to the pole insertion end. Lighting equipment. The adapter
The luminaire according to claim 1, wherein the plurality of steps have a multi-step cylindrical shape, and the tip of each step is an annular flat surface . The outer shell has
The plurality of fixing portions for fixing the pole with the screws
It is arranged at three locations at equal intervals around the central axis of the pole receiving portion and at equal intervals along the central axis of the pole.
A set of the fixing portions located at both ends of the three locations at equal intervals along the insertion direction of the pole are provided on the same straight line extending in the insertion direction of the pole.
The lighting fixture according to claim 1 or 2 , wherein the lighting fixture is characterized in that. On the outer peripheral surface of the adapter, a plurality of contact protrusions protruding in the radial direction of the adapter and extending in the pole insertion direction are formed at equal intervals around the central axis of the pole receiving portion.
A through hole for passing the screw is formed at a portion of the contact convex portion corresponding to the fixing portion.
The lighting fixture according to any one of claims 1 to 3, wherein the lighting fixture is characterized in that.

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