Lamp body support tool

Abstract

To provide a lamp body support tool that can inhibit an irradiation angle of a lamp body from changing after installation of a lighting fixture.SOLUTION: A lamp body support tool includes: a base part 3 including a placing part 15 on which a lighting fixture 101 that includes a lamp body 103 including a light source and a support part 105 for supporting the lamp body 103 so as to be rotatable in a first direction A and a second direction B that is opposite to the first direction A is placed; and a rotation prevention part 7 supported to the base part 3, positioned in the first direction A relative to the lamp body 103 of the lighting fixture 101 placed on the placing part 15, and coming into contact with the lamp body 103.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a lamp body support device for supporting a lamp body of a lighting fixture. [Background technology]

[0002] Conventionally, as disclosed in Patent Document 1, there is known a lighting device that includes a lamp body having a light source, a support part that supports the lamp body so that it can be swiveled in a predetermined direction, and a holding part that prevents the illumination angle of the lamp body from fluctuating after the lighting device is installed. The holding part includes a positioning plate that is provided on the lamp body and has a positioning part, an arm that is provided on the support part and has an attachment part, and a positioning pin that is inserted into the positioning part and the attachment part. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-006131 A Summary of the Invention [Problem to be solved by the invention]

[0004] Unlike the lighting devices described above, in lighting fixtures that do not have a holding part, there is a risk that the illumination angle of the lamp body will change after the lighting fixture is installed due to the screws at the connection between the lamp body and the support part loosening over time, or if a person touches the lamp body intentionally or inadvertently.

[0005] An object of the present invention is to provide a lamp body support device that can suppress fluctuations in the illumination angle of a lamp body after installation of a lighting fixture. [Means for solving the problem]

[0006] The lamp support device of the present invention supports a lamp of a lighting fixture. The lighting fixture includes a lamp and a support part. The lamp includes a light source. For example, an LED lamp or an incandescent light bulb can be used as the light source. The support part supports the lamp so that the lamp can rotate in a first direction and a second direction opposite to the first direction. The axial direction of the rotation axis of the lamp is not particularly limited, and may be horizontal, vertical, or inclined relative to the horizontal or vertical.

[0007] The lamp support device includes a base portion and a rotation prevention portion.

[0008] The lighting fixture is placed on the base. That is, the base includes a placement portion on which the lighting fixture is placed. The placement portion may be provided anywhere on the base, for example, in the center of the base, or may be provided at a location off the center of the base. The surface of the base on which the lighting fixture is placed is referred to as the placement surface.

[0009] The location where the base part is installed is not particularly limited, and may be, for example, the upper surface of a concrete foundation provided on the ground surface, or the upper surface of a lighting fixture at least a part of which is buried in the ground. The lighting fixture is, for example, a steel box.

[0010] The base portion may be configured to have an instrument line insertion hole. An instrument line having one end connected to a lighting fixture is inserted into the instrument line insertion hole. The shape of the base portion is not particularly limited, and may be, for example, a plate shape or a block shape.

[0011] The rotation prevention part is located in a first direction relative to the light body of the lighting fixture placed on the placement part and contacts the light body. When the axial direction of the rotation axis of the light body is horizontal, the first direction may be a direction in which the illumination angle of the light body with respect to the horizontal plane becomes smaller, or a direction in which the illumination angle of the light body with respect to the horizontal plane becomes larger.

[0012] The rotation prevention portion is supported by the base portion. The rotation prevention portion may be directly supported by the base portion, or may be supported by the base portion via an attachment portion, which will be described later.

[0013] In the case where the rotation preventing portion is directly supported on the base portion, the rotation preventing portion may be attached to the base portion by a male screw member, or may be attached to the base portion by welding, or may be formed by bending a plate-shaped base portion. The male screw member may be, for example, a bolt or a machine screw.

[0014] The lamp support device may be configured to include an attachment portion. The attachment portion protrudes from the mounting surface of the base portion. The attachment portion may be configured to be attached to the base portion by a male screw member, or may be configured to be attached to the base portion by welding, or may be configured such that a rotation prevention portion is formed by bending a plate-shaped base portion.

[0015] A rotation preventing portion is attached to the mounting portion. That is, the rotation preventing portion is supported by the base portion via the mounting portion. The rotation preventing portion may be configured to be attached to the mounting portion by a male screw member, for example, or may be configured to be attached to the mounting portion by an adhesive. When the rotation preventing portion is configured to be attached to the mounting portion by a male screw member, the rotation preventing portion may be provided with a blocking side insertion portion into which the male screw member is inserted, and the mounting portion may be provided with an installation side insertion portion into which the male screw member is inserted.

[0016] When the rotation prevention portion is attached to the mounting portion by a male screw member, the rotation prevention portion may be configured to be rotatable around the axis of the male screw member relative to the mounting portion, i.e., rotatable around the male screw member, when the male screw member is loosened.

[0017] The mounting portion has one or more protruding portions protruding from the mounting surface of the base portion. The shape of the protruding portion is not particularly limited, and may be, for example, a plate-like or rod-like shape. When the mounting portion has two protruding portions, the rotation prevention portion may be configured to be attached between the two protruding portions by a male screw member.

[0018] When the rotation preventing portion is attached to the mounting portion by a male screw member, the rotation preventing portion may be provided with multiple preventing side insertion portions, and the male screw member may be selectively inserted into the multiple preventing side insertion portions, or the mounting portion may be provided with multiple mounting side insertion portions, and the male screw member may be selectively inserted into the multiple mounting side insertion portions.

[0019] The light body support device may be configured to include a winding portion. The winding portion is wound around the outer circumferential surface of the light body via the rotation prevention portion, i.e., with the rotation prevention portion sandwiched therebetween. The number of winding portions is not particularly limited, and may be one or two or more. For example, a fastening band, a string, or a tape may be used as the winding portion. The fastening band includes a belt-shaped band portion and a tightening portion provided at one end of the band portion.

[0020] Unless otherwise specified, the material of each part of the lamp support fixture is not limited to a specific material, and may be, for example, metal, resin, or wood. [Brief description of the drawings]

[0021] [Figure 1] FIG. 2 is a perspective view of the light body support fixture in a state in which the light body is supported. [Diagram 2] 1 is a front view of the light body support fixture in a state in which the light body is supported. FIG. [Diagram 3] This is a front view of the lamp support fixture supporting a lamp with a diameter of 80 mm, a length of 25 cm, and an irradiation angle of 45 degrees. [Figure 4] This is a front view of the lamp support fixture supporting a lamp with a diameter of 120 mm, a length of 30 cm, and an irradiation angle of 45 degrees. [Diagram 5] This is a front view of the lamp support fixture supporting a lamp with a diameter of 80 mm, a length of 25 cm, and an illumination angle of 15 degrees. [Figure 6] This is a front view of the lamp support fixture supporting a lamp with a diameter of 120 mm, a length of 30 cm, and an illumination angle of 15 degrees. [Figure 7] 10A to 10C are process diagrams showing the construction procedure for supporting a light body using a light body support fixture. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, an embodiment of a light body support fixture will be described with reference to the accompanying drawings. In the following description, the terms "left and right," "up and down," and "front and back" refer to the left and right, up and down, and front and back, respectively, as viewed from the front in FIG.

[0023] The light body support device 1 will be described with reference to Figs. 1 and 2. The light body support device 1 supports a light body 103 of a lighting device 101. The lighting device 101 includes the light body 103 and a support section 105. The light body 103 is formed in a substantially cylindrical shape and has an LED lamp (not shown) built in. The support section 105 supports the light body 103 so that it can rotate in a first direction A and a second direction B. The lighting device 101 is placed on the light body support device 1 in such a position that the axis of the rotation shaft of the light body 103 is substantially horizontal. Among the rotation directions of the light body 103, the direction in which the irradiation angle θ of the light body 103 with respect to the horizontal plane becomes smaller is called the first direction A, and the direction in which the irradiation angle θ becomes larger is called the second direction B (see Fig. 2).

[0024] The support portion 105 includes a base portion 107 and a connecting portion 109. The base portion 107 is formed in a substantially cylindrical shape. The connecting portion 109 protrudes upward from the upper surface of the base portion 107. The light body 103 is rotatably connected to the connecting portion 109. A light body fixing screw (not shown) is provided on the connecting portion 109. When the light body fixing screw is loosened, the light body 103 becomes rotatable relative to the support portion 105, and the light body 103 rotates in the first direction A due to its own weight. When the light body fixing screw is tightened, the light body 103 becomes non-rotatable relative to the support portion 105, and the irradiation angle θ of the light body 103 is fixed.

[0025] The light support fixture 1 includes a base portion 3, an attachment portion 5, a rotation prevention portion 7, and a winding portion 9.

[0026] The base portion 3 includes a bottom plate 11 and a rubber sheet 13. The bottom plate 11 is made of a steel plate, and is formed into a generally rounded rectangular plate that is long in the left-right direction. The rubber sheet 13 is attached to the underside of the bottom plate 11. The rubber sheet 13 is made of rubber such as expanded EPDM, and is formed into a generally rounded rectangular sheet that is slightly smaller than the bottom plate 11. By including the rubber sheet 13 in the base portion 3, the base portion 3 can be properly installed even if the upper surface of the concrete foundation C on which the base portion 3 is to be installed is rough.

[0027] The lighting fixture 101 is placed on the upper surface of the base part 3, i.e., on the upper surface of the bottom plate 11. That is, the base part 3 is provided with a placement part 15 on which the lighting fixture 101 is placed. The placement part 15 is provided at a position shifted leftward from the center of the base part 3.

[0028] Of the upper and lower surfaces of the base portion 3, the upper surface of the base portion 3, that is, the surface on which the lighting fixture 101 is placed, is referred to as the placement surface 17. From the placement surface 17, the attachment portion 5 protrudes upward.

[0029] The base part 3 is provided with one fixture line insertion hole 19 and four base holes 21. A fixture line (not shown) drawn from the lighting fixture 101 is inserted into the fixture line insertion hole 19. Therefore, the fixture line can be easily drawn from the lighting fixture 101 placed on the mounting part 15 of the base part 3 to the lower part of the base part 3. The fixture line insertion hole 19 is provided at a position shifted leftward from the center of the base part 3, that is, in the mounting part 15. The diameter of the fixture line insertion hole 19 is smaller than the diameter of the bottom surface of the pedestal part 107. The four base holes 21 are provided at the four corners of the base part 3. A bale bolt 23 for fixing the base part 3 to an installation location is inserted into the base hole 21. In this embodiment, an anchor bolt is used as the bale bolt 23 to fix the base part 3 to a concrete foundation C.

[0030] The mounting portion 5 protrudes upward from the mounting surface 17 at a position shifted rightward from the center of the base portion 3. The rotation prevention portion 7 is attached to the mounting portion 5. The mounting portion 5 includes two standing plates 25 as protrusions protruding upward from the mounting surface 17. Each standing plate 25 is welded to the base portion 3 at its lower end and supported by the base portion 3 in a cantilever manner. Each standing plate 25 is made of steel plate and formed into a plate shape bent into a substantially "L" shape. Each standing plate 25 includes a first standing plate portion 27 and a second standing plate portion 29.

[0031] The first standing plate portion 27 is formed in a generally rectangular plate shape that is long in the vertical direction. Each standing plate 25 is provided on the base portion 3 in such a manner that the surface of the first standing plate portion 27 is generally perpendicular to the front-rear direction and the surface of a second standing plate portion 29 described later is generally perpendicular to the left-right direction. The two first standing plate portions 27 face each other with a gap in the front-rear direction (see FIG. 1). Each first standing plate portion 27 is provided with seven holes that constitute seven attachment side insertion portions 31 described later.

[0032] The second standing plate portions 29 are formed in a generally rectangular plate shape that is long in the vertical direction. The two second standing plate portions 29 are bent in the front-rear direction from the left end portion of the first standing plate portion 27 so as to move away from each other. The second standing plate portions 29 reinforce the first standing plate portion 27 against forces in the front-rear direction.

[0033] The mounting portion 5 is provided with seven mounting side insertion portions 31. The seven mounting side insertion portions 31 are configured with seven holes provided in the first upright portion 27 of one of the upright plates 25 and seven corresponding holes provided in the first upright portion 27 of the other upright plate 25. That is, each mounting side insertion portion 31 is configured with two holes provided in the front-rear direction. The seven mounting side insertion portions 31 are provided at approximately equal intervals in the longitudinal direction of the first upright portion 27, i.e., in the up-down direction. One mounting bolt 33 is selectively inserted into each of the seven mounting side insertion portions 31.

[0034] The rotation prevention part 7 is attached to the mounting part 5 by a mounting bolt 33 and a mounting nut (not shown). That is, the rotation prevention part 7 is supported by the base part 3 via the mounting part 5. The rotation prevention part 7 is rotatable around the axis of the mounting bolt 33 relative to the mounting part 5 when the mounting bolt 33 and the mounting nut are loosened.

[0035] The rotation preventing portion 7 is made of a steel plate, and is formed in a general “T” shape when viewed from the front. The rotation preventing portion 7 includes a first preventing portion 35 and a second preventing portion 37.

[0036] The first blocking part 35 is located in the first direction A relative to the lamp body 103 and contacts the lamp body 103. The first blocking part 35 is formed in a substantially rectangular plate shape, and both ends in the longitudinal direction are bent to the opposite side to the surface that contacts the lamp body 103. The rotation blocking part 7 is attached to the mounting part 5 in such a position that the surface of the first blocking part 35 is substantially parallel to the axial direction of the lamp body 103 and the surface of a second blocking part 37 described later is substantially perpendicular to the front-rear direction. An EPDM rubber plate 39 is attached to the surface of the first blocking part 35 that contacts the lamp body 103.

[0037] The second blocking portion 37 protrudes from the approximate center of the surface opposite to the surface on which the rubber plate 39 is provided, of the front and rear surfaces of the first blocking portion 35, and is approximately perpendicular to the surface. The second blocking portion 37 is formed in an approximately rectangular plate shape. The second blocking portion 37 is formed slightly thinner than the gap between the two first standing plate portions 27, and is inserted between the two first standing plate portions 27. When the mounting bolt 33 and the mounting nut are tightened in this state, the second blocking portion 37 is sandwiched between the two first standing plate portions 27, so that the rotation blocking portion 7 is firmly fixed to the mounting portion 5. Therefore, after the mounting bolt 33 and the mounting nut are tightened, the rotation blocking portion 7 can be suppressed from rotating around the axis of the mounting bolt 33.

[0038] The second blocking portion 37 is provided with six blocking side insertion portions 41. The six blocking side insertion portions 41 are configured with six holes provided in the second blocking portion 37. The six blocking side insertion portions 41 are provided at approximately equal intervals in the longitudinal direction of the second blocking portion 37. One mounting bolt 33 is selectively inserted into each of the six blocking side insertion portions 41.

[0039] As described above, the rotation prevention part 7 is rotatable around the axis of the mounting bolt 33 with respect to the mounting part 5 when the mounting bolt 33 and the mounting nut are loosened, so that the rotation angle of the second prevention part 37 with respect to the mounting bolt 33 can be adjusted, and the extension angle of the first prevention part 35 with respect to the horizontal plane can be adjusted. In addition, the mounting part 5 is provided with seven mounting side insertion parts 31 in the longitudinal direction of the first standing plate part 27, so that the position of the first prevention part 35 can be adjusted in the longitudinal direction of the first standing plate part 27, i.e., in the up-down direction. In addition, the rotation prevention part 7 is provided with six prevention side insertion parts 41 in the longitudinal direction of the second prevention part 37, so that the separation distance of the first prevention part 35 with respect to the mounting part 5 can be adjusted.

[0040] In this way, by adjusting at least one of the position of the first blocking portion 35 around the axis of the mounting bolt 33, the position of the first blocking portion 35 in the vertical direction, and the separation distance of the first blocking portion 35 from the mounting portion 5, the first blocking portion 35 can be appropriately positioned for luminaires 103 of different sizes and illumination angles θ, and the luminaires 103 can be appropriately supported.

[0041] 3 shows a state in which a lamp 103 having a diameter of 80 mm, a length of 25 cm, and an irradiation angle θ=45 degrees is supported by the lamp support fixture 1. At this time, the mounting bolt 33 is inserted through the second mounting side insertion part 31 from the top and the fourth blocking side insertion part 41 from the side closest to the first blocking part 35. The extension angle of the first blocking part 35 with respect to the horizontal plane is 45 degrees.

[0042] 4 shows a state in which a lamp 103 having a diameter of 120 mm, a length of 30 cm, and an irradiation angle θ=45 degrees is supported by the lamp support fixture 1. At this time, the mounting bolt 33 is inserted through the third mounting side insertion part 31 from the top and the fifth blocking side insertion part 41 from the side closest to the first blocking part 35. The extension angle of the first blocking part 35 with respect to the horizontal plane is 45 degrees.

[0043] 5 shows a state in which a lamp 103 having a diameter of 80 mm, a length of 25 cm, and an irradiation angle θ=15 degrees is supported by the lamp support fixture 1. At this time, the mounting bolt 33 is inserted through the third mounting side insertion part 31 from the top and the third blocking side insertion part 41 from the side closest to the first blocking part 35. The extension angle of the first blocking part 35 with respect to the horizontal plane is 15 degrees.

[0044] 6 shows a state in which a lamp 103 having a diameter of 120 mm, a length of 30 cm, and an irradiation angle θ=15 degrees is supported by the lamp support fixture 1. At this time, the mounting bolt 33 is inserted through the seventh mounting side insertion part 31 from the top and the sixth blocking side insertion part 41 from the side closest to the first blocking part 35. The extension angle of the first blocking part 35 with respect to the horizontal plane is 15 degrees.

[0045] The winding part 9 (not shown in FIG. 1) is wound around the outer circumferential surface of the light body 103 of the lighting fixture 101 placed on the base part 3 in the mounting part 15, via the first blocking part 35. The winding part 9 is a stainless steel fastening band. The winding part 9 includes a belt-shaped band part (not shown) and a fastening metal fitting (not shown) provided at one end of the band part.

[0046] The location where the winding portion 9 is wound is appropriately adjusted according to the shape of the light body 103. The winding portion 9 may be wound around the tip side of the light body 103, the base side of the light body 103, or both the tip side and the base side of the light body 103 with respect to the second blocking portion 37 (see Figs. 3 to 6).

[0047] The winding part 9 is wound around the light body 103 via the rotation prevention part 7, so that the light body 103 is fixed to the rotation prevention part 7. This makes it possible to prevent the light body 103 from rotating in the second direction B, i.e., in the opposite direction to the first prevention part 35 located in the first direction A relative to the light body 103, even if a force in the second direction B is applied to the light body 103.

[0048] Based on FIG. 7, a construction procedure for supporting the light body 103 using the light body support fixture 1 will be described.

[0049] In step S1, the base portion 3 is fixed to the concrete foundation C by the four bail bolts 23.

[0050] In step S2, the lighting fixture 101 is placed on the placement portion 15 of the base unit 3. At this time, the pedestal portion 107 is attached with screws to a mounting box embedded in the concrete foundation C. In addition, the fixture wire drawn from the lighting fixture 101 is drawn below the base unit 3 through the fixture wire insertion hole 19 of the base unit 3 and connected to a power cable (not shown) embedded in the concrete foundation C.

[0051] In step S3, the lamp body fixing screw of the lighting fixture 101 is loosened, and then the lamp body 103 is rotated to adjust the irradiation angle θ with respect to the horizontal plane. After the adjustment, the lamp body fixing screw is tightened.

[0052] In step S4, the rotation prevention part 7 is attached to the mounting part 5. First, one mounting side insertion part 31 and one blocking side insertion part 41 into which the mounting bolt 33 is inserted are selected from the seven mounting side insertion parts 31 and the six blocking side insertion parts 41 so that the first blocking part 35 is in close contact with the outer circumferential surface of the lighting body 103, and the mounting bolt 33 is inserted into the selected mounting side insertion part 31 and blocking side insertion part 41. Next, the rotation prevention part 7 is rotated around the axis of the mounting bolt 33 to adjust the rotation angle of the rotation prevention part 7. After the adjustment, the mounting bolt 33 and the mounting nut are tightened. The lighting fixture 101 is turned on to confirm that the illumination target is illuminated.

[0053] In step S5, the wrapping portion 9 is wrapped around the outer circumferential surface of the lighting body 103 via the first blocking portion 35. The mounting portion 5 and the lighting fixture 101 are gently shaken by hand to check that there is no wobbling or the like.

[0054] In this manner, construction is performed to support the light body 103 using the light body support fixture 1. Note that the construction procedure is not limited to the above, and can be changed as appropriate in consideration of workability.

[0055] As described above, the light body support device 1 of this embodiment includes the base portion 3 and the rotation prevention portion 7. The base portion 3 includes the mounting portion 15 on which the lighting device 101 is placed. The rotation prevention portion 7 is supported by the base portion 3. The rotation prevention portion 7 is located in the first direction A with respect to the light body 103 of the lighting device 101 placed on the mounting portion 15, and comes into contact with the light body 103.

[0056] According to this configuration, even if a force in the first direction A is applied to the light body 103, the rotation prevention part 7 supported by the base part 3 is positioned in the first direction A relative to the light body 103 and is in contact with the light body 103, so that the light body 103 is prevented from rotating in the first direction A. Therefore, it is possible to suppress fluctuations in the irradiation angle θ of the light body 103 after the lighting fixture 101 is installed.

[0057] [Note] The following is a description of the lamp support fixture. The lamp support device includes a base portion having a mounting portion on which a lighting device having a lamp including a light source and a support portion that rotatably supports the lamp in a first direction and a second direction opposite to the first direction is placed, and a rotation prevention portion supported by the base portion, positioned in the first direction relative to the lamp of the lighting device placed on the mounting portion, and in contact with the lamp.

[0058] According to this configuration, even if a force in the first direction is applied to the light body, the rotation prevention part supported by the base part is located in the first direction relative to the light body and is in contact with the light body, so that the light body is prevented from rotating in the first direction. Therefore, it is possible to suppress fluctuations in the illumination angle of the light body after the installation of the lighting fixture.

[0059] In this case, it is preferable that the lighting fixture further comprises an attachment portion that protrudes from the mounting surface of the base portion on which the lighting fixture is mounted and to which the rotation preventing portion is attached.

[0060] According to this configuration, by attaching the rotation preventing portion to the attachment portion protruding from the mounting surface of the base portion, the rotation preventing portion can be supported by the base portion.

[0061] In this case, it is preferable that the rotation preventing portion is attached to the attachment portion by a male screw member.

[0062] According to this configuration, the rotation prevention portion can be easily attached to the attachment portion.

[0063] In this case, it is preferable that the rotation preventing portion be rotatable about the axis of the male screw member relative to the mounting portion when the male screw member is loosened.

[0064] According to this configuration, the rotation angle of the rotation prevention part relative to the male screw member can be adjusted, and therefore the rotation prevention part can be appropriately positioned for lamps of different sizes and illumination angles, and the lamps can be appropriately supported.

[0065] In this case, it is preferable that the mounting portion has two protruding portions protruding from the mounting surface, and the rotation preventing portion is attached between the two protruding portions by a male screw member.

[0066] According to this configuration, the rotation preventing portion is sandwiched between the two protrusions, and thus the rotation preventing portion is firmly fixed to the attachment portion, and therefore, after the male screw member is tightened, the rotation preventing portion can be prevented from rotating around the axis of the male screw member.

[0067] In this case, it is preferable that the rotation preventing portion is provided with a plurality of preventing side insertion portions into which the male screw members are selectively inserted.

[0068] According to this configuration, the position of the rotation prevention part relative to the mounting part can be adjusted, so that the rotation prevention part can be appropriately positioned for lamps of different sizes and illumination angles, and the lamp can be appropriately supported.

[0069] In this case, it is preferable that the mounting portion is provided with a plurality of mounting side insertion portions into which the male screw members are selectively inserted.

[0070] According to this configuration, the position of the rotation prevention part relative to the mounting part can be adjusted, so that the rotation prevention part can be appropriately positioned for lamps of different sizes and illumination angles, and the lamp can be appropriately supported.

[0071] In this case, it is preferable to provide a winding portion that is wound around the outer circumferential surface of the lamp body via a rotation preventing portion.

[0072] According to this configuration, the winding part is wound around the lamp body via the rotation prevention part, and the lamp body is fixed to the rotation prevention part. This makes it possible to prevent the lamp body from rotating in the second direction, i.e., in the opposite direction to the rotation prevention part located in the first direction relative to the lamp body, even if a force in the second direction is applied to the lamp body.

[0073] In this case, it is preferable that the base portion is provided with an instrument wire insertion hole into which the instrument wire drawn out from the lighting instrument is inserted.

[0074] According to this configuration, the fixture wire can be easily pulled from the lighting fixture placed on the placement portion of the base part to below the base part. [Explanation of symbols]

[0075] 1: lighting fixture support device, 3: base portion, 5: mounting portion, 7: rotation prevention portion, 9: winding portion, 11: bottom plate, 13: rubber sheet, 15: mounting portion, 17: mounting surface, 19: fixture wire insertion hole, 21: base hole, 23: bail bolt, 25: standing plate, 27: first standing plate portion, 29: second standing plate portion, 31: mounting side insertion portion, 33: mounting bolt, 35: first prevention portion, 37: second prevention portion, 39: rubber plate, 41: prevention side insertion portion, 101: lighting fixture, 103: lighting fixture, 105: support portion, 107: base portion, 109: connecting portion, A: first direction, B: second direction, C: concrete foundation.

Claims

1. a base portion having a mounting portion on which a lighting device is mounted, the lighting device having a light body including a light source and a support portion that supports the light body rotatably in a first direction and a second direction opposite to the first direction; a rotation prevention part supported by the base part and positioned in the first direction with respect to the light body of the lighting fixture placed on the placement part, the rotation prevention part being in contact with the light body; A light support device comprising:

2. 2. The lamp support device according to claim 1, further comprising: a mounting portion that protrudes from a mounting surface of the base portion on which the lighting device is mounted, and to which the rotation prevention portion is attached.

3. 3. The lamp support device according to claim 2, wherein the rotation prevention portion is attached to the mounting portion by a male screw member.

4. 4. The lamp support fixture according to claim 3, wherein the rotation prevention portion is rotatable about an axis of the male screw member relative to the mounting portion when the male screw member is loosened.

5. The mounting portion has two protruding portions protruding from the mounting surface, 5. The lamp support device according to claim 4, wherein the rotation preventing portion is attached between the two protruding portions by the male screw member.

6. 4. The lamp support device according to claim 3, wherein the rotation preventing portion is provided with a plurality of preventing side insertion portions into which the male screw member is selectively inserted.

7. 4. The lamp support device according to claim 3, wherein the mounting portion is provided with a plurality of mounting-side insertion portions into which the male screw members are selectively inserted.

8. 2. The lamp support device according to claim 1, further comprising a winding portion that is wound around an outer circumferential surface of the lamp body via the rotation preventing portion.

9. 2. The lighting body support device according to claim 1, wherein the base portion is provided with a fixture wire insertion hole into which a fixture wire drawn out from the lighting device is inserted.

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