Lighting fixture direction adjustment jig

Abstract

To provide a direction adjusting tool of a luminaire capable of easily adjusting the direction.SOLUTION: A direction adjusting jig for a luminaire includes a light source unit 3 in which a casing 4 is arranged so as to cover the periphery of the optical axis of a light source 31, and illumination light from the light source 31 is emitted from one end opening part of the casing 4, and the light source unit 3 is attached to an installation surface via a base member in a state capable of changing its direction. The lighting fixture includes a rod-like grip shaft part 81 and a head part 83 which is provided on one end side of the grip shaft part 81 and can be fitted to a fitting cylinder part 45 provided in a casing 4 through one end opening part, and is configured so that the direction of a light source unit 3 is changed by operating the grip shaft part 81 in a state that the head part 83 is fitted to the fitting cylinder part 45.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a lighting fixture direction adjustment jig for adjusting the direction of a lighting fixture such as a universal downlight that is attached to a ceiling and has an adjustable lighting direction. [Background technology]

[0002] Conventionally, lighting fixtures such as universal downlights that are recessed into ceilings and can freely adjust the direction of illumination are well known. For example, the lighting fixtures shown in Patent Documents 1 to 3 listed below include a base frame that is attached to an installation hole in the ceiling and a light source unit that is attached to the base frame facing downward. Furthermore, the light source unit is attached to the base frame so that it can rotate freely around an axis (vertical axis) and rotate freely around a horizontal axis (tiltable). An operator can insert their fingers into the base frame from below and rotate the light source unit around the axis or in a tilting direction, thereby freely adjusting the direction of illumination (lighting direction) within a predetermined range. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2016-91955 [Patent Document 2] Patent Publication No. 2016-66497 [Patent Document 3] Patent Publication No. 2016-126836 Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional downlights described above have strong resistance to rotation and tilting movements so that the orientation of the light source unit, such as the rotation position or tilt position, is not changed indiscriminately, and the orientation of the light source unit is maintained by a relatively strong force (frictional resistance force, etc.). For this reason, an operator needs to use a strong operating force when changing the orientation of the light source unit.

[0005] Meanwhile, in recent years, there has been a growing trend toward smaller and more compact downlights, with some downlights being so small that only one finger can fit inside. In these downlights, adjusting the orientation of the light source unit requires a single finger, but as mentioned above, the position of the light source unit is maintained with a relatively strong force, making it difficult to adjust the orientation of the light source unit. In particular, many downlights are often installed in a room, and adjusting the orientation of many of these downlights at once places a significant burden on the worker.

[0006] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a lighting fixture direction adjustment jig that can easily adjust the direction of a universal downlight or the like. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention comprises the following means.

[0008] [1] An orientation adjustment jig for a lighting fixture for changing the orientation of a light source unit in a lighting fixture configured to change the lighting direction by changing the orientation of the light source unit, the lighting fixture including a light source unit having a casing arranged to cover the outer periphery of the optical axis of a light source and emitting illumination light from the light source from one end opening of the casing, the light source unit being attached to an installation surface via a base member in a state in which its orientation can be changed, A rod-shaped gripping shaft portion, a head portion provided on one end side of the grip shaft portion and capable of being fitted into a fitting cylindrical portion provided in the casing through the one end opening, A lighting fixture orientation adjustment jig characterized in that the orientation of the light source unit is changed by operating the gripping shaft while the head portion is engaged with the engaging tube portion.

[0009] [2] The light source unit is supported by the base member so as to be rotatable about an axis parallel to the axis of the lighting fixture and so as to be tiltable about the parallel axis, The lighting fixture orientation adjustment jig described in the preceding paragraph 1 is configured so that the light source unit can be rotated and tilted by operating the gripping shaft while the head portion is fitted into the fitting tube portion.

[0010] [3] The fitting cylindrical portion is formed to have a circular cross section, 3. The lighting fixture orientation adjustment jig according to claim 2, further comprising an anti-rotation means for preventing the head portion from rotating relative to the fitting tube portion when the head portion is fitted into the fitting tube portion.

[0011] [4] A plurality of female knurling members are provided on the inner peripheral surface of the fitting cylindrical portion, the female knurling members extending along the optical axis direction of the light source unit and arranged in parallel in the circumferential direction; 4. The lighting fixture orientation adjustment jig according to claim 3, wherein the anti-rotation means is provided on the outer peripheral surface of the head portion and is constituted by a male knurling that engages with the female knurling.

[0012] [5] The lighting fixture orientation adjustment jig according to paragraph 4, wherein the female side knurling is constituted by a vertical baffle.

[0013] [6] A light irradiator is provided on the grip shaft, and an exit port of the light irradiator is provided on the other end surface of the grip shaft, 6. The lighting fixture orientation adjustment jig described in any one of paragraphs 1 to 5 above, which is configured so that when the head portion is fitted into the fitting tube portion, the optical axis of the light emitted by the light irradiator coincides with the optical axis of the light source unit.

[0014] [7] The lighting fixture orientation adjustment jig according to any one of the preceding paragraphs 3 to 5, wherein the head portion is formed in a partially cut circular cross section having a cutout portion in a circular cross section. [Effects of the Invention]

[0015] According to the lighting fixture orientation adjustment jig of invention [1], a head portion that can be fitted into the fitting tube portion of the light source unit of the lighting fixture is provided on one end side of the gripping shaft, so that the orientation of the light source unit can be easily adjusted by fitting the head portion into the fitting tube portion and moving the gripping shaft portion.

[0016] According to the lighting fixture orientation adjustment jigs of the inventions [2] to [4], the light source unit can be easily rotated or tilted.

[0017] According to the lighting fixture orientation adjustment jig of invention [5], the vertical baffle that is pre-installed inside the fitting tube of the lighting fixture is used as a female knurl that engages with the male knurl, so it can be used as is with existing lighting fixtures, improving versatility.

[0018] According to the lighting fixture orientation adjustment jig of invention [6], a light illuminator is provided on the gripping shaft, and the light emitted from the light illuminator is positioned to correspond to the illumination light of the light source unit. Therefore, by visually checking the projection position of the illumination light while adjusting the orientation of the light source unit, the direction of the illumination light from the light source unit can be accurately imagined, and the lighting orientation can be adjusted easily and smoothly.

[0019] According to the lighting fixture orientation adjustment jig of invention [7], a recess is formed in the head portion, which effectively prevents the head portion from interfering with parts of the lighting fixture when fitting or removing the head portion from the fitting tube portion of the light source unit, and allows the head portion to be fitted or removed reliably. [Brief explanation of the drawings]

[0020] [Figure 1]FIG. 1 is a side view showing a state in which a direction adjusting jig according to an embodiment of the present invention is separated from a lighting fixture. [Figure 2] FIG. 2 is a side cross-sectional view of the orientation adjusting jig of the embodiment separated from the lighting fixture. [Figure 3] FIG. 3 is a side view of a lighting fixture in which the orientation adjustment jig of the embodiment is fitted and in which the light source unit is tilted. [Figure 4] FIG. 4 is a perspective view showing an exploded view of a lighting fixture that can be operated by the orientation adjustment jig of the embodiment. [Figure 5] FIG. 5 is a perspective view of the orientation adjusting jig of the embodiment as viewed obliquely from above. [Figure 6] FIG. 6 is a perspective view of the orientation adjusting jig of the embodiment as viewed obliquely from below. [Figure 7] FIG. 7 is a plan view showing the orientation adjusting jig of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0021] 1 and 2 are a side view and a cross-sectional view showing a state in which a direction adjustment jig 8 according to an embodiment of the present invention is separated from a lighting fixture D, FIG. 3 is a side cross-sectional view showing a state in which the direction adjustment jig 8 according to the embodiment is fitted into the lighting fixture D, and FIG. 4 is an exploded perspective view showing a lighting fixture D that can be operated by the direction adjustment jig 8 according to the embodiment.

[0022] First, we will explain lighting fixture D, in which the lighting direction is adjusted by direction adjustment jig 8 of this embodiment. As shown in Figures 1 to 4, lighting fixture D is attached in a recessed state to a ceiling 9 or the like, and constitutes a so-called swiveling type universal downlight, in which the lighting direction can be freely adjusted.

[0023] This lighting fixture D includes a base frame 1 as a base member, a cone 2, and a light source unit 3 as basic components.

[0024] The base frame 1 has a flanged annular shape with a flange 11 formed on the outer peripheral edge of the lower end thereof, which protrudes outward.

[0025] The cone 2 disposed inside the base frame 1 is formed in a truncated cone shape with a diameter that increases downward. The cone 2 is detachably supported by the base frame 1 via a spring and is rotatable about the axis of the base frame 1. In this embodiment, the axis X of the base frame 1 coincides with the axis of the lighting fixture (downlight) D.

[0026] Additionally, a plurality of mounting springs 12 made of leaf springs are attached at appropriate intervals in the circumferential direction to the outer peripheral surface of the base frame 1. Each mounting spring 12 is arranged so that it is pulled outward from above the base frame 1 and protrudes in the outer diameter direction.

[0027] As shown in Figures 2 and 3, each mounting spring 12 is elastically deformed so as to fold upward and then fitted into the installation hole 91 in the ceiling 9 from below, so that the base frame 1 is attached in a state where it is embedded in the installation hole 91 in the ceiling 9 via the root portion of the mounting spring 12.

[0028] The cone 2 supported by the base frame 1 is provided with a pair of mounting pieces 21 that protrude upward and rotatably support a light source unit 3, which will be described in detail below.

[0029] The light source unit 3 has a light source 31. The light source 31 is configured by an LED (Light Emitting Diode) or the like, and is configured to irradiate illumination light (LED light) forward (downward) from the light source 31. Here, in this embodiment, the axis of the optical unit 3 coincides with the optical axis A of the light source 31.

[0030] The light source unit 3 is provided with a casing 4 that surrounds the outer periphery of the optical axis A of the light source 31. The casing 4 includes a cylindrical casing main body 5, a cylindrical (circular cross section) casing intermediate section 6 that is provided at the lower end of the casing main body 5 and has a smaller diameter than the casing main body 5, and a cylindrical (frusto-conical) casing tip section 7 that is provided at the lower end of the casing intermediate section 6 and has a diameter that increases downward.

[0031] A heat sink 35 is attached to the upper opening of the casing body 5, and the light source 31 is attached inside the casing body 5 at the lower end of the heat sink 35.

[0032] An umbrella-shaped reflector 51 is provided inside the casing main body 5. The upper opening edge of this reflector 51 is disposed on the outer peripheral edge of the light source 31, and the lower opening edge is disposed on the peripheral edge of a lower opening 70 of the casing main body 5. In this embodiment, the lower opening 70 of the casing 4 (casing main body 5) constitutes one end opening of the casing 4.

[0033] Furthermore, a lens 52 is arranged at the lower end of the reflector 51 in correspondence with the optical axis A, and the LED light emitted from the light source 31 is configured to pass through the lens 52.

[0034] The interior of the upper part of the casing intermediate section 6 is configured as an option installation section 60. Examples of optical system options that can be installed in this option installation section 60 include a spread lens, a flat lens, and a honeycomb louver.

[0035] 5 to 7, a slit-shaped option opening / closing port 61 is formed in the peripheral wall of the casing intermediate section 6 along the circumferential direction, spanning approximately half the circumference of the peripheral wall. This option opening / closing port 61 is a through-hole, and communicates between the option installation section 60 and the outside of the casing 4. Furthermore, the option opening / closing port 61 is provided with an opening / closing cover 62 that can be freely opened and closed. Therefore, when the option opening / closing port 61 is opened, an option can be inserted or removed through the option opening / closing port 61.

[0036] 3 and 4, the lower portion of the casing intermediate portion 6 in the light source unit 3 is configured as a fitting cylindrical portion 45. A baffle 40 is provided on the inner peripheral surface of this fitting cylindrical portion 45. This baffle 40 is a so-called vertical baffle, and is configured by a knurling having a large number of circumferentially arranged concave and convex portions extending parallel to the optical axis A. In this embodiment, this knurling is configured as a female knurling 41.

[0037] A pair of pivotal attachment portions 71 are provided on the outer peripheral surface of the casing tip portion 7 of the light source unit 3, and a pair of mounting pieces 21 of the cone 2 attached to the base frame 1 are pivotally attached to the pair of pivotal attachment portions 71. This allows the light source unit 3 to rotate freely around a horizontal rotation axis B (axis perpendicular to the paper surface of FIG. 2) that passes through the pair of pivotal attachment portions 71. In other words, the light source unit 3 is configured so that its optical axis A can rotate (tilt) freely in a bending direction relative to a vertical axis parallel to the axis X of the base frame 1 (axis X of the lighting fixture D).

[0038] In this embodiment, the vertical axis parallel to the axis X of the base frame 1 corresponds to the optical axis A in the state (initial state) in which the light source unit 3 is vertically disposed as shown in Fig. 2. Therefore, the light source unit 3 is configured so that it can be disposed in a state in which the axis A is tilted as shown in Fig. 3 with respect to the axis A in the initial state shown in Fig. 2.

[0039] Furthermore, as described above, the cone 2 to which the light source unit 3 is pivotally attached is detachably attached to the base frame 1. Therefore, the light source unit 3 can be removed from the ceiling 9 together with the cone 2, with the base frame 1 remaining. Furthermore, the cone 2 is configured to be rotatable relative to the base frame 1 around the axis X in the vertical direction of the base frame 1. Therefore, in this embodiment, the light source unit 3 is configured to be rotatable around the axis of the base frame 1 and tiltable relative to the vertical axis parallel to the axis of the base frame 1.

[0040] In this embodiment, the optical axis A of the light source unit 3 in the initial state does not coincide with the axis X of the base frame 1 (axis X of the lighting device D), but is disposed at a horizontal distance from the axis X of the base frame 1. However, in the present invention, the optical axis A of the light source unit 3 in the initial state may be configured to coincide with the axis X of the base frame 1.

[0041] Furthermore, in the lighting fixture D of this embodiment, the light source unit 3 is configured to be able to be fixed at any rotational position and at any tilted position.

[0042] Therefore, in the lighting fixture D of this embodiment, the light source unit 3 can be held at a desired rotational position and a desired tilt position so that the lighting direction is directed in a desired direction. As a result, the lighting fixture D of this embodiment can appropriately adjust the lighting direction according to the room layout and indoor fixtures, and can produce an excellent lighting effect.

[0043] Here, in the lighting fixture D of this embodiment, similar to the conventional universal downlight described above, resistance to rotation and tilting movements is strong so that the position of the light source unit 3 is not changed indiscriminately, and the position of the light source unit 3 is maintained by a relatively strong force (frictional resistance force, etc.). For this reason, when an operator changes the rotation position or tilt position of the light source unit 3, a strong operating force is required.

[0044] Therefore, in this embodiment, the orientation of the light source unit 3 can be easily adjusted using an orientation adjustment jig 8 as described below.

[0045] 5 and 6 are perspective views showing a direction adjusting jig 8 for adjusting the direction of illumination in the lighting fixture D, and FIG. 7 is a plan view.

[0046] As shown in these figures, the orientation adjustment jig 8 of this embodiment is also called an adjustable laser stick, and comprises a rod-shaped gripping shaft portion 81 and a head portion 83 attached to one end (upper end) of the gripping shaft portion 81 via a connecting shaft portion 82.

[0047] The head portion 83 has a cross section perpendicular to the axis that is formed to be approximately circular, and more specifically, the cross section is formed to be a partially circular shape with both sides of the circular cross section cut out to have missing portions 84 on both sides.

[0048] As shown in Figure 3, the outer diameter dimension of the head portion 83 (the outer diameter dimension of the part excluding the missing portion 84) is formed to correspond to the inner diameter dimension of the fitting cylindrical portion 45 of the casing 4 in the above-mentioned lighting fixture D, and the head portion 83 of the orientation adjustment jig 8 is configured to be able to be fitted into the fitting cylindrical portion 45 of the lighting fixture D from below through the lower end opening 70 in a fitted state.

[0049] A knurling 85 is formed on the outer peripheral surface of the head portion 83, excluding the cutout portion 84, and is made up of a large number of circumferentially arranged concave and convex ridge portions that extend parallel to the axial direction. In this embodiment, this knurling 85 is configured as a male knurling 85. When the head portion 83 is fitted into the fitting tube portion 45 of the lighting fixture D as shown in Fig. 3, the female and male knurlings 41, 85 mesh with each other, thereby preventing the orientation adjustment jig 8 from rotating relative to the light source unit 3 of the lighting fixture D.

[0050] In this embodiment, the anti-rotation means is constituted by the male knurling 85 that meshes with the female knurling 41 provided on the fitting cylindrical portion 45. Note that in this embodiment, the anti-rotation means is not limited to the knurling, and for example, the fitting cylindrical portion 45 may be formed with a key groove or key protrusion extending in the axial direction, and the anti-rotation means may be constituted by a key protrusion or key groove formed on the outer peripheral surface of the head portion 83 that is housed in an engaged state with the key groove or key protrusion.

[0051] In the orientation adjustment jig 8, the gripping shaft 81 is arranged so that its axis coincides with that of the head 83. As a result, when the head 83 is fitted into the fitting tube 45 of the lighting fixture D, the axis A of the light source unit 3 of the lighting fixture D coincides with the axis of the gripping shaft 81.

[0052] Furthermore, in the direction adjustment jig 8, when the head portion 83 is fitted into the fitting tube portion 45 of the lighting fixture D, the gripping shaft portion 81 is configured to be positioned below the ceiling 9, and by holding and moving this downwardly protruding gripping shaft portion 81 by hand, the light source unit 3 of the lighting fixture 3 can be rotated or tilted, and the direction of the illumination light can be adjusted.

[0053] Furthermore, the gripping shaft 81 of the orientation adjustment jig 8 also functions as a laser pointer 86. A laser emission port (lens) 87 of the laser pointer 86 serving as the gripping shaft 81 is installed at the center of the other end face (lower end face) of the gripping shaft 81, and is configured so that the optical axis of the laser light emitted from the laser emission port 87 coincides with the axis of the gripping shaft 83. As a result, when the head 83 of the orientation adjustment jig 8 is fitted into the fitting cylinder 45 of the lighting fixture D, the optical axis A of the light source unit 3 coincides with the optical axis of the laser light.

[0054] Therefore, when adjusting the lighting direction of lighting fixture D using direction adjustment jig 8, the position where the laser light from direction adjustment jig 8 is projected coincides with the center position of the lighting light from lighting fixture D, so by visually checking the projection position of the laser light, the worker can adjust the lighting direction of lighting fixture D while accurately imagining the actual lighting position.

[0055] In this embodiment, a laser pointer is used as the light irradiator, but the present invention is not limited to this and any device that can irradiate light in a predetermined direction can be used. For example, a penlight or the like can also be used as the light irradiator.

[0056] In addition, in this embodiment, a pen clip 88 is provided on the gripping shaft portion 81 of the orientation adjustment jig 8, and this pen clip 88 allows the orientation adjustment jig 8 to be held stably in a chest pocket of work clothes, a pen holder on the arm, etc., thereby improving convenience.

[0057] The laser light is turned on and off using a button 89 provided on the grip shaft 81.

[0058] As described above, in the orientation adjustment jig 8 of this embodiment, the head portion 83 that can be fitted into the fitting cylindrical portion 45 of the light source unit 3 is provided at one end of the gripping shaft portion 81, and therefore the head portion 83 is fitted into the fitting cylindrical portion 45 through the lower end opening (one end opening 70) of the casing 4, and the orientation (posture) of the light source unit 3, such as the rotational position or tilt position, can be easily adjusted by holding and moving the gripping shaft portion 81 by hand. Therefore, by using the orientation adjustment jig 8 of this embodiment, it is not necessary to insert a finger into a lighting fixture to adjust the orientation of the light source unit, as in the conventional case, and the orientation of the light source unit 3 can be easily adjusted via the orientation adjustment jig 8 even if the orientation of the light source unit 3 is held with a relatively strong force.

[0059] Furthermore, in the orientation adjustment jig 8 of this embodiment, a laser pointer 86 is provided on the gripping shaft portion 81, and the optical axis of the laser light emitted from the laser pointer 86 is configured to coincide with the optical axis A of the light source unit 3. Therefore, by visually checking the projection position of the laser light while adjusting the orientation of the light source unit 3, the irradiation position of the illumination light from the light source unit 3 can be accurately imagined, and the orientation of the light source unit 3 can be accurately adjusted to the desired orientation, making it possible to adjust the illumination direction easily and smoothly.

[0060] Furthermore, in the orientation adjustment jig 8 of this embodiment, the vertical baffle 40 that is pre-installed inside the fitting tube portion 45 of the lighting fixture D is used as the female side knurling 41 that engages with the male side knurling 85 as a rotation prevention means, so that it can be used as is for existing lighting fixtures D, improving versatility.

[0061] Furthermore, in the orientation adjustment jig 8 of this embodiment, the cross-sectional shape of the head portion 81 is formed into a notched circle with cutouts 84 on both sides, so that the light source unit 3 can be reliably removed even when tilted significantly, as shown in Fig. 3. In other words, when the light source unit 3 is tilted significantly using the orientation adjustment jig 8 as shown in Fig. 3, if cutouts 84 were not present, part of the outer periphery of the head portion 83 of the orientation adjustment jig 8 would be positioned opposite the upper edge of the cone 2 of the lighting fixture D. In that case, the outer periphery of the head portion 83 would interfere with the cone 2 of the lighting fixture D, making it impossible to remove the orientation adjustment jig 8.

[0062] Therefore, as shown in Figure 3, in this embodiment, by providing a cutout 84 in the head portion 83 of the orientation adjustment jig 8 and positioning the cutout 84 to correspond to the tilt direction, the cutout 84 faces the upper edge of the cone 2, preventing the head portion 83 from interfering with the cone 2 and allowing the orientation adjustment jig 8 to be reliably removed from the lighting fixture D.

[0063] The same applies when inserting the orientation adjustment jig 8 into a lighting fixture D with the light source unit 3 tilted significantly; by positioning the cutout portion 84 in accordance with the tilt direction, the head portion 83 does not interfere with the cone 2, and the head portion 83 can be smoothly fitted into the fitting tube portion 45 of the lighting fixture D. [Industrial Applicability]

[0064] The lighting fixture direction adjusting jig of the present invention can be suitably used when adjusting the direction of a lighting fixture such as a universal downlight that is attached to a ceiling wall or the like and has an adjustable lighting direction. [Explanation of symbols]

[0065] 1: Base frame (base material) 3: Light source unit 31:Light source 4: Casing 40: Baffle (vertical baffle) 41: Female side knurling 45: Fitting cylinder part 70: Lower end opening (one end opening) 8: Orientation adjustment jig 81: Grip shaft part 82:Connection shaft part 83: Head 84: Missing part 85: Male side knurling 86: Laser pointer (light emitter) 9: Ceiling (installation surface) 91: Installation hole A: Optical axis D:Lighting equipment X: Axis of the base frame (lighting fixture)

Claims

1. An orientation adjustment jig for a lighting fixture for changing the orientation of a light source unit in a lighting fixture configured to change the lighting direction by changing the orientation of the light source unit, the lighting fixture including a light source unit having a casing arranged to cover the outer periphery of an optical axis of a light source and emitting illumination light from the light source from an opening at one end of the casing, the light source unit being attached to an installation surface via a base member in a state in which the orientation of the light source unit can be changed, A rod-shaped gripping shaft portion, a head portion provided on one end side of the grip shaft portion and capable of being fitted into a fitting cylindrical portion provided in the casing through the one end opening, The orientation of the light source unit is changed by operating the grip shaft while the head is fitted to the fitting cylinder, the light source unit is supported by the base member so as to be rotatable about an axis parallel to an axis of the lighting fixture and so as to be tiltable about the parallel axis; The light source unit is configured to rotate and tilt by operating the grip shaft while the head is fitted to the fitting cylinder, The fitting cylindrical portion is formed to have a circular cross section, a rotation prevention means for preventing the head portion from rotating relative to the fitting cylindrical portion when the head portion is fitted to the fitting cylindrical portion; a plurality of female knurlings extending along the optical axis direction of the light source unit and arranged in parallel in the circumferential direction are provided on an inner peripheral surface of the fitting cylindrical portion; The rotation prevention means is provided on the outer peripheral surface of the head portion and is constituted by a male knurling that engages with the female knurling.

2. The lighting fixture orientation adjustment jig according to claim 1 , wherein the female knurling is formed by a vertical baffle.

3. An orientation adjustment jig for a lighting fixture for changing the orientation of a light source unit in a lighting fixture configured to change the lighting direction by changing the orientation of the light source unit, the lighting fixture including a light source unit having a casing arranged to cover the outer periphery of an optical axis of a light source and emitting illumination light from the light source from an opening at one end of the casing, the light source unit being attached to an installation surface via a base member in a state in which the orientation of the light source unit can be changed, A rod-shaped gripping shaft portion, a head portion provided on one end side of the grip shaft portion and capable of being fitted into a fitting cylindrical portion provided in the casing through the one end opening, The orientation of the light source unit is changed by operating the grip shaft while the head is fitted to the fitting cylinder, the light source unit is supported by the base member so as to be rotatable about an axis parallel to an axis of the lighting fixture and so as to be tiltable about the parallel axis; The light source unit is configured to rotate and tilt by operating the grip shaft while the head is fitted to the fitting cylinder, The fitting cylindrical portion is formed to have a circular cross section, a rotation prevention means for preventing the head portion from rotating relative to the fitting cylindrical portion when the head portion is fitted to the fitting cylindrical portion; The head portion is a lighting fixture orientation adjustment jig formed in a partially circular cross section with a missing portion in part of the circular cross section.

4. a plurality of female knurlings extending along the optical axis direction of the light source unit and arranged in parallel in the circumferential direction are provided on an inner peripheral surface of the fitting cylindrical portion; 4. The lighting fixture orientation adjusting jig according to claim 3, wherein the rotation prevention means is provided on the outer peripheral surface of the head portion and is constituted by a male knurl that meshes with the female knurl.

5. The lighting fixture orientation adjustment jig according to claim 4 , wherein the female knurling is formed by a vertical baffle.

6. a light irradiator is provided on the grip shaft, and an exit port of the light irradiator is provided on the other end surface of the grip shaft; The lighting fixture orientation adjustment jig according to any one of claims 1 to 5, configured so that when the head portion is fitted into the fitting tube portion, the optical axis of the light emitted by the light irradiator coincides with the optical axis of the light source unit.

Images