JP2021190389A - Lighting device - Google Patents

Abstract

To provide a lighting device capable of being installed to a ceiling easily.SOLUTION: A lighting device comprises: a light source device 1 provided with a light emitting element 10 that emits light; an arm 4 having an arm base part 40 fixed to an object to be installed, a first arm part 41 located on the left end side of the arm base part 40 in a horizontal direction and attached to the left surface of the light source device 1, and a second arm part 41 located on the right end side of the arm base part 40 and attached to the right surface of the light source device 1; a first connection member 5 that presses the first arm part 41 to connect the light source device 1 and the first arm part 41; and a second connection member 6 that connects the light source device 1 and the second arm part 41 without pressing the second arm part 41. When the first connection member 5 does not press the first arm part 41, the light source device 1 rotates around the second connection member 6.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a lighting device.

Conventionally, there is a lighting device that changes the direction of the light source unit to change the irradiation direction. For example, in Patent Document 1, a mounting plate attached to a light source unit (corresponding to the fixture body of Patent Document 1) and an arm fixed to the ceiling are connected by two first bolts and two second bolts. The lighting device to be used is disclosed. Further, the mounting hole into which the first bolt is screwed is arcuate, and the insertion hole into which the second bolt is screwed is provided on the ceiling side of the mounting hole. Therefore, the direction of the light source unit with respect to the arm can be changed by using the second bolt as the rotation axis. Further, the light source unit can be rotated within a predetermined range, and the light source unit can be rotated within a range of ± 30 ° with respect to the arm.

Japanese Unexamined Patent Publication No. 2014-137964

The lighting device of Patent Document 1 is installed on an object to be installed at a high place such as a ceiling, and it is generally desirable that there are few bolts to be tightened after changing the direction of the light source unit so that the installation work can be easily performed. However, in the lighting device of Patent Document 1, after changing the direction of the light source unit, it is necessary to tighten the first bolts provided on the left and right sides respectively. That is, in the lighting device of Patent Document 1, after changing the direction of the light source unit, the two bolts must be tightened.

An object of the present disclosure is to obtain a lighting device that can be easily installed on a ceiling as compared with the lighting device of Patent Document 1.

The lighting device of the present disclosure is a light source unit including a light source that irradiates light, and an arm base fixed to an object to be installed and located on one end side of the arm base in the first direction in the first direction of the light source unit. It has a first arm arm attached to one side and a second arm arm located on the other end side of the arm base in the first direction and attached to the other side of the light source unit in the first direction. The first connecting member that presses the arm and the first arm arm to connect the light source unit and the first arm arm, and the light source unit and the second without pressing the second arm arm. A second connecting member for connecting the arm arm portion is provided, and the light source unit rotates about the second connecting member as a central axis in a state where the first connecting member does not press the first arm arm portion.

The lighting device of the present disclosure has an effect that it can be easily installed on the ceiling as compared with the lighting device of Patent Document 1.

It is a perspective view of the lighting apparatus which concerns on Embodiment 1. FIG. It is a front view of the lighting apparatus which concerns on Embodiment 1. FIG. It is an exploded perspective view when the lighting apparatus which concerns on Embodiment 1 is seen from above. FIG. 5 is an exploded perspective view of the lighting device according to the first embodiment when viewed from below. It is a perspective view when the pillar member of the lighting apparatus which concerns on Embodiment 1 is seen from the right. It is a perspective view when the pillar member of the lighting apparatus which concerns on Embodiment 1 is seen from the left. It is a perspective view when the power-holding member of the lighting apparatus which concerns on Embodiment 1 is seen from above. It is a perspective view when the power-holding member of the lighting apparatus which concerns on Embodiment 1 is seen from the bottom. It is a perspective view of the arm of the lighting apparatus which concerns on Embodiment 1. FIG. It is a top view of the arm of the lighting apparatus which concerns on Embodiment 1. FIG. It is a front view of the arm of the lighting apparatus which concerns on Embodiment 1. FIG. It is a side view of the arm of the lighting apparatus which concerns on Embodiment 1. FIG. It is sectional drawing in the cross section parallel to the broken line A and the vertical direction in FIG. 2 of the lighting apparatus which concerns on Embodiment 1. FIG. It is sectional drawing in the cross section parallel to the broken line B in FIG. 2 and the vertical direction of the lighting apparatus which concerns on Embodiment 1. FIG. It is a perspective view of the lighting apparatus which concerns on Embodiment 1 when the angle of a light source unit is 0 degree. It is a perspective view of the lighting apparatus which concerns on Embodiment 1 in the case where a light source unit is rotated to a predetermined angle θ. It is a perspective view when the lighting apparatus which concerns on Embodiment 2 is seen from the bottom. It is a perspective view when the lighting apparatus which concerns on Embodiment 2 is seen from above. It is a side view of the lighting apparatus which concerns on Embodiment 2. FIG. It is a top view of the lighting apparatus which concerns on Embodiment 2. FIG. It is a top view of the lighting apparatus which concerns on Embodiment 2 which omitted the arm. It is a perspective view of the lighting apparatus which concerns on Embodiment 2 in the case where a light source unit is rotated to a predetermined angle θ. It is a top view of the lighting apparatus which concerns on Embodiment 2 in the case where a light source unit is rotated to a predetermined angle θ. It is a perspective view of the lighting apparatus which concerns on Embodiment 3. FIG. It is an enlarged view of the pillar member and the arm of the lighting apparatus which concerns on Embodiment 3. FIG.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. The same or corresponding parts in each figure are designated by the same reference numerals. In the description of the embodiment, the description thereof will be omitted or simplified as appropriate for the same or corresponding parts.

Further, in each figure, the arrangement and orientation of the device, the component, and the like are defined by the directions of the three-axis Cartesian coordinate system in which the arrows X, Y, and Z are orthogonal to each other. The direction indicated by the arrow X is referred to as a left-right direction. The origin side of the arrow X is referred to as the left side. The tip side of the arrow X is referred to as the right side. The direction indicated by the arrow Y is referred to as a front-back direction. The origin side of the arrow Y is referred to as the front. The tip side of the arrow Y is referred to as the lower side. The direction indicated by the arrow Z is referred to as a vertical direction. The origin side of the arrow Z is referred to as downward. The tip side of the arrow Z is referred to as upward. It should be noted that these names are defined for convenience of explanation, and do not limit the arrangement and orientation of devices, parts, and the like.

Embodiment 1.
FIG. 1 is a perspective view of the lighting device according to the first embodiment. FIG. 2 is a front view of the lighting device according to the first embodiment. FIG. 3 is an exploded perspective view of the lighting device according to the first embodiment when viewed from above. FIG. 4 is an exploded perspective view of the lighting device according to the first embodiment when viewed from below. In the first embodiment, the lighting device 100 will be described as being installed on an object to be installed such as a ceiling of a building (not shown).

The lighting device 100 includes a light source device 1, a power supply device 2, a power supply holding member 3, an arm 4, a first connecting member 5, and a second connecting member 6. Further, a member in which the light source device 1, the power supply device 2, and the power supply holding member 3 are integrated is referred to as a light source unit.

The light source device 1 includes a plurality of light emitting elements 10, a mounting substrate 11, a base 12, a cover 13, and two pillar members 14.

The light emitting element 10 corresponds to the light source in the present disclosure, and emits light when electric power is supplied. As the light emitting element 10, for example, an SMD (Surface Mount Device) type LED (Light Emitting Diode), a COB (Chip on Board) type LED, a laser diode, an organic electroluminescence, or the like is used.

The mounting board 11 is a flat plate-shaped electronic board. A plurality of light emitting elements 10 are mounted on the mounting surface 11a, which is one surface (lower surface in the drawing) of the mounting substrate 11. Further, the mounting substrate 11 is provided with a wiring conductor (not shown) for electrically connecting the electrodes of the plurality of light emitting elements 10. Further, the mounting board 11 is provided with a power supply terminal (not shown), and one end of a wiring (not shown) that electrically connects the mounting board 11 and the power supply device 2 is attached.

The base 12 is formed by processing a metal material having high thermal conductivity such as aluminum, and has a base main portion 12a and a base flange portion 12b. The base main portion 12a has a substantially rectangular flat plate shape, and the mounting substrate 11 is mounted on the lower surface of the base main portion 12a. The heat generated from the light emitting element 10 is transmitted to the mounting substrate 11 and the base 12 and dissipated in the air. Further, a hole into which a screw is inserted is formed in the base main portion 12a. The base flange portion 12b is a portion protruding toward the surface below the end portion of the base main portion 12a. By providing the base flange portion 12b, the rigidity of the base 12 is increased, and the weight can be reduced by thinning the base 12. Further, since the base flange portion 12b projects toward the lower surface side, dust or water is less likely to collect on the base 12 as compared with the case where the collar portion projects toward the upper surface. Further, the base flange portion 12b is formed with notches 12c at four locations.

The cover 13 is a member that covers the mounting board 11. A translucent synthetic resin or the like is used for the cover 13. The cover 13 has a box-shaped cover main portion 13a having an opening on the upper surface, and a cover flange portion 13b protruding in the front-rear direction or the left-right direction from the edge of the cover main portion 13a. The cover 13 is attached to the lower surface of the base main portion 12a so as to cover the mounting board 11. Therefore, the mounting board 11 is located in the space surrounded by the cover main portion 13a and the base main portion 12a. Further, a cover hole is formed in the cover flange portion 13b.

FIG. 5 is a perspective view of the pillar member of the lighting device according to the first embodiment when viewed from the right. FIG. 6 is a perspective view of the pillar member of the lighting device according to the first embodiment when viewed from the left. The pillar member 14 will be described with reference to FIGS. 5 and 6. The pillar member 14 is a member used for fixing the light source device 1 and the arm 4. The pillar member 14 is provided between both side portions of the base 12 (corresponding to the right end portion or the left end portion in the drawing) and the end portion of the arm 4. Further, the pillar member 14 is made of a metal member having higher strength than the base 12 such as iron or stainless steel. Further, the pillar member 14 has a pillar main portion 14a, a pillar side portion 14b, a base fixing portion 14c, a cover holding portion 14d, and a pillar member screw portion 14e.

The pillar main portion 14a has a rectangular plate shape. A connection hole 14f penetrating in the thickness direction (corresponding to the left-right direction in the drawing) is formed in the pillar main portion 14a.

The pillar side portion 14b is formed at the front end portion and the rear end portion of the pillar main portion 14a. The pillar side portion 14b protrudes inward. That is, the pillar side portion 14b of the right pillar member 14 protrudes to the left, and the pillar side portion 14b of the left pillar member 14 protrudes to the right. By forming the pillar side portion 14b, the pillar main portion 14a is less likely to be twisted. Further, a fall prevention wire is attached to the pillar side portion 14b of one pillar member 14. Further, the pillar side portion 14b is located above the base 12. Therefore, when the pillar member 14 moves with respect to the base 12 due to shaking or the like, the pillar side portion 14b comes into contact with the base 12 to prevent the pillar member 14 from moving.

The base fixing portion 14c is formed at the lower end portion of the pillar main portion 14a. The base fixing portion 14c projects inward like the pillar side portion 14b. A hole is formed in the base fixing portion 14c, and the pillar member 14 is fixed to the base 12 by inserting a screw. More specifically, the base 12, the cover 13, and the pillar are formed by inserting a screw into the cover hole of the cover flange portion 13b, the hole formed in the base main portion 12a, and the hole formed in the base fixing portion 14c. The member 14 is fixed.

The cover holding portion 14d is formed at the lower end portion of the pillar main portion 14a, and is located below the base fixing portion 14c. When the pillar member 14 is fixed to the base 12 and the cover 13, the cover holding portion 14d is formed at a position where the cover holding portion 14d is inserted into the notch 12c of the base 12. Therefore, when assembling the lighting device 100, the operator can determine the position of the pillar member 14 with respect to the base 12 by using the cover holding portion 14d. Further, the tip of the cover holding portion 14d protrudes inward like the pillar side portion 14b and the base fixing portion 14c, and the tip of the cover holding portion 14d is located below the cover flange portion 13b of the cover 13. Therefore, the tip of the cover holding portion 14d suppresses the fall of the cover 13.

The column member screw portion 14e is provided on the inner surface of the column main portion 14a (in the drawing, the left surface corresponds to the right column member 14 and the right surface corresponds to the left column member 14). Has been done. A hole is formed in the column member threaded portion 14e, and the central axis of the hole is formed so as to coincide with the central axis of the connection hole 14f. Further, a spiral groove is formed on the inner surface of the hole of the column member threaded portion 14e.

The power supply device 2 will be described with reference to FIGS. 1 to 4. The power supply device 2 is provided above the light source device 1. Further, the power supply device 2 has a lighting circuit 20, a terminal block 21, a lighting circuit case 22, and a terminal block case 23.

The lighting circuit 20 is a circuit for supplying electric power to the light emitting element 10, and has an electronic element such as a capacitor. The lighting circuit 20 includes a power conversion circuit that converts electric power supplied from an external power source such as a commercial power source into a direct current required for the light emitting element 10 to light, and a control circuit that controls the power conversion circuit. The power conversion circuit is composed of, for example, a full-wave rectifier, a step-up chopper circuit, a step-down chopper circuit, and the like. The control circuit acquires operation information related to dimming input from an operation terminal or the like that accepts user operations, and controls the power conversion circuit according to the acquired operation information to dimm the light emitted from the light emitting element 10. .. Further, the lighting circuit 20 is attached with the other end of the wiring that electrically connects the mounting board 11 and the power supply device 2.

A power line electrically connected to an external power source is fixed to the terminal block 21. The terminal block 21 is provided with a power line insertion port 21a, and the power line is fixed by inserting the end of the power line into the power line insertion port 21a. The terminal block 21 and the lighting circuit 20 are electrically connected, and the lighting circuit 20 and the external power supply are electrically connected via the terminal block 21 and the power line. The terminal block 21 is provided on one end side (front in the drawing) of the power supply device 2, and the power supply line insertion port 21a is open on one end side.

The lighting circuit case 22 is a metal case that covers the lighting circuit 20. The lighting circuit case 22 covers the lighting circuit 20 from five directions except below the lighting circuit 20. The lighting circuit case 22 suppresses the accumulation of dust or water in the lighting circuit 20. Further, there is a notch on the front surface of the lighting circuit case 22, and the terminal block 21 is exposed from the lighting circuit case 22 from the notch.

The terminal block case 23 is a metal case that covers the terminal block 21. The terminal block case 23 covers the terminal block 21 from four directions except the rear and the lower side of the terminal block. The terminal block case 23 is fixed to the lighting circuit case 22. Further, the power line fixed to the terminal block 21 is pulled out from below the terminal block case 23.

FIG. 7 is a perspective view of the power supply holding member of the lighting device according to the first embodiment when viewed from above. FIG. 8 is a perspective view of the power supply holding member of the lighting device according to the first embodiment when viewed from below. The power supply holding member 3 will be described with reference to FIGS. 7 and 8. The power supply holding member 3 is a member located between the light source device 1 and the power supply device 2, and is a member that holds the power supply device 2 so that a space is formed between the light source device 1 and the power supply device 2. By forming a space between the light source device 1 and the power supply device 2, the heat generated by the light source device 1 is suppressed from being transferred to the power supply device 2. The power supply holding member 3 has a power supply device mounting portion 30, a holding leg portion 31, a base mounting portion 32, and a protruding portion 33.

The power supply mounting portion 30 is a flat plate-shaped portion along a plane perpendicular to the vertical direction. The length of the power supply mounting portion 30 in the front-rear direction is substantially the same as the length of the base 12 in the front-rear direction. The power supply device 2 is fixed to the upper surface of the power supply device mounting portion 30. Further, an opening is formed in the power supply device mounting portion 30 for the purpose of weight reduction.

The holding leg portion 31 is provided at an end portion in the front-rear direction of the power supply device mounting portion 30, and is a portion protruding toward the lower surface side of the power supply device mounting portion 30. A space is formed between the light source device 1 and the power supply device 2 by the holding legs 31.

The base mounting portion 32 is provided at the lower end portion of the holding leg portion 31, and is a portion of the holding leg portion 31 projecting in the front-rear direction. A hole is formed in the base mounting portion 32, and the power holding member 3 is fixed to the light source device 1 by inserting a screw into the hole.

The protruding portion 33 is provided at the lower end of the holding leg portion 31, and is a portion that protrudes below the holding leg portion 31. When the power supply holding member 3 is fixed to the light source device 1, the protrusion 33 is formed at a position where the protrusion 33 is inserted into the notch 12c of the base 12. Therefore, when assembling the lighting device 100, the operator can determine the position of the power supply holding member 3 with respect to the light source device 1 by using the protrusion 33.

FIG. 9 is a perspective view of an arm of the lighting device according to the first embodiment. FIG. 10 is a top view of the arm of the lighting device according to the first embodiment. FIG. 11 is a front view of the arm of the lighting device according to the first embodiment. FIG. 12 is a side view of the arm of the lighting device according to the first embodiment. The arm 4 will be described with reference to FIGS. 9 to 12. The arm 4 is a member for fixing the lighting device 100 to an object to be installed such as a ceiling. The arm 4 has an arm base 40, two arm arm portions 41, and an arm flange portion 42. The arm 4 is formed in a substantially U shape by bending the arm arm 41 downward at both ends of the arm base 40 in the longitudinal direction. Therefore, an arm bending portion 40a is formed between the arm base portion 40 and the arm arm portion 41. Further, in the arm 4, the arm base 40 is located above the power supply device 2, and the arm arm 41 is located on the left and right sides of the light source device 1, respectively.

When the arm 4 is viewed from above, the first arm base through hole 40b is formed on one arm arm 41 side (right side in the drawing) with respect to the center in the longitudinal direction (left and right direction in the drawing) of the arm base 40. ing. The first arm base through hole 40b has a shape in which an elongated hole extending in the longitudinal direction of the arm base 40 and a circular hole are combined. Further, when the arm 4 is viewed from above, a second arm base through hole 40c is formed on the other arm arm 41 side (left side in the drawing) with respect to the center in the longitudinal direction of the arm base 40. The second arm base through hole 40c is an elongated hole extending in the lateral direction (front-back direction in the drawing) of the arm base 40. Further, a hanging bolt is inserted into the first arm base through hole 40b and the second arm base through hole 40c, and the arm base 40 is sandwiched between the nut and the object to be installed, so that the lighting device 100 becomes an object to be installed. It is fixed.

In the arm arm portion 41, the end portion on the opposite side (lower side in the drawing) of the arm bending portion 40a has a semicircular shape. An arm arm through hole 41a is formed in the semicircular portion of the arm arm 41. Further, a marking 41b is provided on the semicircular portion of the arm arm portion 41. Further, the arm arm portion 41 is located outside the pillar member 14.

The arm flange portion 42 is formed at the end portions of the arm base portion 40 and the arm arm portion 41 in the lateral direction (front-rear direction in the drawing). The arm flange portion 42 is bent toward the power supply device 2. That is, the arm flange portion 42 is bent downward at the arm base 40, bent to the left at the right arm arm 41, and bent to the right at the left arm arm 41. Has been done. Further, the arm flange portion 42 is not formed in the semicircular portion of the arm arm portion 41. By forming the arm flange portion 42, it is possible to suppress twisting of the arm 4 in the front-rear direction, and the strength of the arm 4 is increased.

Further, an arm bending hole portion 40d is formed in the arm bending portion 40a located between the arm base portion 40 and the arm arm portion 41. Since the arm arm portion 41 is bent after the arm flange portion 42 is formed at the time of manufacturing the arm 4, the arm arm portion 41 is formed by having the arm bending hole portion 40d as compared with the case where the arm bending hole portion 40d is not provided. It becomes easy to bend. Further, the arm flange portion 42 is also formed in the arm bending portion 40a. The arm flange portion 42 formed in the arm bending portion 40a connects the arm flange portion 42 formed in the arm base portion 40 and the arm flange portion 42 formed in the arm arm portion 41. By connecting the arm flange portion 42 formed on the arm base portion 40 and the arm flange portion 42 formed on the arm arm portion 41 in this way, it is possible to suppress the arm 4 from being deformed in the left-right direction.

FIG. 13 is a cross-sectional view of the lighting device according to the first embodiment in a cross section parallel to the broken line A in FIG. 2 in the vertical direction. The first connecting member 5 will be described with reference to FIG. The first connecting member 5 is a member that physically connects one arm arm portion 41 (corresponding to the left arm arm portion 41 in the drawing) and the pillar member 14. The first connecting member 5 has a connecting member screw portion 50, a head portion 51, and a washer 52.

The connecting member threaded portion 50 has a cylindrical shape, and a spiral thread is provided on the side surface thereof. The diameter of the connecting member threaded portion 50 is smaller than the diameter of the arm arm portion through hole 41a of the arm arm portion 41 and the diameter of the connecting hole 14f of the pillar member 14. Therefore, the connecting member screw portion 50 can be inserted into the arm arm portion through hole 41a and the connecting hole 14f. Further, the spiral thread of the connecting member threaded portion 50 fits into the spiral groove of the column member threaded portion 14e. Therefore, the arm arm portion 41 and the pillar member 14 are physically connected by fitting the connecting member screw portion 50 and the pillar member screw portion 14e.

The head 51 has a hexagonal column shape, and the longest diameter portion of the head 51 is larger than the diameter of the arm arm through hole 41a of the arm arm 41. Therefore, when the first connecting member 5 is rotated and the connecting member screw portion 50 is inserted deeper, the arm arm portion 41 is pressed against the head 51, and the arm arm portion 41 is pressed against the head 51 and the pillar main portion. It is tightened and fixed by 14a.

The washer 52 is provided between the head 51 and the arm arm 41. By having the washer 52, it is possible to prevent the head 51 from buckling on the arm arm 41 when the arm arm 41 is tightened by the head 51 and the pillar main portion 14a.

FIG. 14 is a cross-sectional view of the lighting device according to the first embodiment in a cross section parallel to the broken line B in FIG. 2 in the vertical direction. The second connecting member 6 will be described with reference to FIG. The second connecting member 6 is a member that physically connects the other arm arm 41 (corresponding to the right arm 41 in the drawing) and the pillar member 14. The second connecting member 6 has a connecting member screw portion 60, a head portion 61, and a step portion 62. Since the connecting member screw portion 60 is the same as the connecting member screw portion 50, the description thereof will be omitted.

The head 61 has a hexagonal column shape, and the longest diameter portion of the head 61 is larger than the diameter of the arm arm through hole 41a of the arm arm 41.

The step portion 62 is provided between the connecting member screw portion 60 and the head portion 61, and has a cylindrical shape. The diameter of the step portion 62 is smaller than the diameter of the arm arm through hole 41a and larger than the diameter of the connection hole 14f of the pillar member 14. Therefore, the step portion 62 is inserted into the arm arm through hole 41a, but is not inserted into the connection hole 14f. Further, the width L of the step portion 62 is longer than the wall thickness t of the arm arm portion 41. Therefore, when the second connecting member 6 is rotated to insert the connecting member screw portion 60 deeper, the step portion 62 between the head portion 61 and the pillar member 14 from the wall thickness t of the arm arm portion 41. A long gap L is formed, the arm arm 41 is not pressed against the head 61, and the arm arm 41 is not tightened by the head 61 and the pillar main portion 14a.

FIG. 15 is a perspective view of the lighting device according to the first embodiment when the angle of the light source unit is 0 degree. FIG. 16 is a perspective view of the lighting device according to the first embodiment when the light source unit is rotated to a predetermined angle θ. Next, a method of adjusting the angle of the light source unit at the time of installing the lighting device 100 will be described with reference to FIGS. 15 and 16.

When adjusting the angle of the light source unit, the first connecting member 5 is rotated in the direction opposite to the direction in which the first connecting member 5 is rotated when the first connecting member 5 is inserted. By rotating the first connecting member 5 in this way, the tightening of the arm arm portion 41 by the head 51 and the pillar member 14 is loosened. Further, since the head portion 61 and the pillar member 14 of the second connecting member 6 do not tighten the arm arm portion 41, the light source unit can be the first by simply loosening the tightening by the head portion 51 of the first connecting member 5. It can rotate with respect to the arm 4 with the connecting member 5 and the second connecting member 6 as the central axis.

Further, when the inclination angle of the light source unit is 0 degree, a gap 200 is formed between the pillar member 14 and the arm flange portion 42. The case where the angle of the light source unit is 0 degrees is the case where the base 12 is parallel to the arm base 40 and the base 12 is not tilted in the vertical direction with respect to the arm base 40. Further, the fact that the base 12 is parallel to the arm base 40 means that the base 12 is also parallel to the installation surface of the object to be installed in the lighting device 100.

When the light source unit is rotated to a preset angle θ, the pillar member 14 and the arm flange portion 42 come into contact with each other. Due to the contact between the arm flange portion 42 and the pillar member 14, the light source unit cannot rotate at an angle larger than the preset angle θ. Therefore, the rotation of the light source unit can be restricted to a predetermined angle by the arm flange portion 42. The case where the light source unit is rotated to a preset angle θ is a case where the base 12 is tilted by an angle θ with respect to the arm base 40. Further, the fact that the base 12 is tilted by an angle θ with respect to the arm base 40 means that the base 12 is also tilted by an angle θ with respect to the installation surface of the object to be installed of the lighting device 100.

As described above, the lighting device 100 of the first embodiment includes a light source unit (corresponding to the light source device 1, the power supply device 2, and the power supply holding member 3) including a light source for irradiating light (corresponding to the light emitting element 10). One of the light source unit in the first direction, which is located on one end side (corresponding to the left direction of the drawing) of the arm base 40 and the arm base 40 fixed to the installation object in the first direction (corresponding to the left-right direction of the drawing). The light source unit is located on the side of the first arm arm (corresponding to the arm arm 41 on the left side of the drawing) and the other end side of the arm base 40 in the first direction (corresponding to the right direction of the drawing) attached to the side surface of the light source unit. A second arm arm attached to the other side surface in the first direction (corresponding to the arm arm 41 on the right side of the drawing), and an arm having the first arm arm pressed against the light source unit and the first arm. The first connecting member 5 that connects the one arm arm portion and the second connecting member 6 that connects the light source unit and the second arm arm portion without pressing the second arm arm portion. In the state where the first connecting member 5 does not press the first arm arm portion, the light source unit rotates about the second connecting member 6 as a central axis. In particular, by providing the second connecting member 6 for connecting the light source unit and the second arm arm without pressing the second arm arm, the lighting device 100 of the first embodiment is the first connection. The angle of the light source unit can be adjusted simply by loosening the member 5. Therefore, the lighting device 100 of the first embodiment has an effect that it can be easily installed on the object to be installed as compared with the lighting device of Patent Document 1.

Further, the lighting device 100 of the first embodiment has a structure in which a gap is formed between the second connecting member 6 and the second arm arm portion as an additional configuration. According to this configuration, in the lighting device 100 of the first embodiment, the second connecting member 6 connects the light source unit and the second arm arm portion without pressing the second arm arm portion.

Further, in the lighting device 100 of the first embodiment, as an additional configuration, the second connecting member 6 has a diameter of the connecting member screw portion 60 having a cylindrical shape and a spiral thread on the side surface. The head 61, which is longer than the diameter of the connecting member screw portion 60, is located between the connecting member screw portion 60 and the head 61, and the diameter is longer than the diameter of the connecting member screw portion 60 and shorter than the diameter of the head 61. The connecting member screw portion 61 has a stepped portion 62 having a length parallel to the axial direction longer than the thickness of the second arm arm portion, and the light source unit has a stepped portion 62 larger than the diameter of the connecting member threaded portion 60. A hole having a diameter smaller than the diameter of the head 61 (corresponding to the connection hole 14f) is formed, and a hole having a diameter larger than the diameter of the step portion 62 and smaller than the diameter of the head 61 (arm arm) is formed in the second arm arm portion. A through hole 41a) is formed, and the connecting member screw portion 61 is inserted into the hole formed in the light source unit and the hole formed in the second arm arm portion, whereby the light source unit and the second arm arm are formed. It has a configuration in which the unit is connected. According to this configuration, in the lighting device 100 of the first embodiment, the second connecting member 6 connects the light source unit and the second arm arm portion without pressing the second arm arm portion.

Further, in the lighting device 100 of the first embodiment, as an additional configuration, the arm 4 is an arm bending portion 40a located at the end portion of the arm base 40 in the first direction with a long-shaped member, and the arm arm portion 41. It is a substantially U-shaped member that is bent and raised, and an arm flange portion 42 is formed on each of the arm base 40, the arm arm 41, and the arm bending portion 40a, and the arm base 40, the arm arm 41, and the arm are formed. The arm flange portions 42 formed in the bent portions 40a have a structure in which they are connected to each other. With this configuration, the lighting device 100 of the first embodiment has an effect that the arm 4 can be suppressed from being deformed in the left-right direction and can be fixed by pressing only one side.

A modified example of the lighting device 100 according to the first embodiment will be described.

In the lighting device 100 of the first embodiment, the light source unit is composed of the light source device 1, the power supply device 2, and the power supply holding member 3, but the present invention is not limited to this, and the light source unit may be provided with at least a light source. For example, as compared with the lighting device of the first embodiment, the configuration corresponding to the power supply device is attached to the attached object such as the ceiling without using an arm, and the configuration corresponding to the power supply holding member is not provided. And the point that only the configuration corresponding to the light source device can be rotated with respect to the arm 4, even if the lighting device is different from the above, the effect of the lighting device of the present disclosure can be obtained.

In the lighting device 100 of the first embodiment, the second connecting member 6 includes a step portion 62, but the present invention is not limited to this. The shape of the second connecting member 6 may be any shape as long as a gap is formed between the head portion 61 of the second connecting member 6 and the arm arm portion 41. For example, the second connecting member includes a bolt having a connecting member threaded portion and a head as in the first connecting member, and a connecting hole 14 having a diameter smaller than that of the arm arm through hole 41a inserted into the connecting member threaded portion. It is composed of a spacer having a length larger than that of the arm arm portion 41 and longer than the thickness of the arm arm portion 41, even if a gap is formed between the head portion 61 of the second connecting member 6 and the arm arm portion 41 by the spacer. I do not care.

Embodiment 2.
FIG. 17 is a perspective view of the lighting device according to the second embodiment when viewed from below. FIG. 18 is a perspective view of the lighting device according to the second embodiment when viewed from above. FIG. 19 is a side view of the lighting device according to the second embodiment. FIG. 20 is a top view of the lighting device according to the second embodiment. FIG. 21 is a top view of the lighting device according to the second embodiment in which the arm is omitted. Next, the lighting device 101 of the second embodiment will be described with reference to FIGS. 17 to 21. The same parts as the lighting device 100 of the first embodiment in the lighting device 101 of the second embodiment will not be described.

The light source device 1 has two mounting boards 11 and a cover 13 on one base 12, respectively. The two mounting boards 11 and the cover 13 are arranged along the front-rear direction. Further, a plurality of fins 7 are attached to the surface on the back side (corresponding to the upper surface in the drawing) with respect to the surface on which the mounting board 11 of the base 12 is installed. The fin 7 is made of a metal having excellent thermal conductivity such as aluminum, and the heat generated by the light emitting element 10 is transferred to the fin 7 via the base 12 and dissipated to the air.

The pillar member 14 has a power supply holding member fixing portion 14g. The power holding member fixing portion 14g is formed at the upper end portion of the pillar main portion 14a and protrudes inward. A hole is formed in the power supply holding member fixing portion 14g, and the pillar member 14 is fixed to the power supply holding member 3 by inserting a screw. Further, a recess 14h is formed in the power supply holding member fixing portion 14g. The recess 14h is formed at a position where the arm flange portion 42 is located inside the recess 14h when the arm 4 is fixed to the pillar member 14. Further, the width W of the recess 14h is wider than the thickness of the arm flange portion 42.

The power supply holding member 3 is a plate-shaped member, and a power supply device 2 is installed. Further, a recess 34 is formed in the power supply holding member 3. The recess 34 is formed at a position where the arm flange portion 42 is located inside the recess 34 when the arm 4 is fixed to the pillar member 14. Further, the width W of the recess 34 is wider than the thickness of the arm flange portion 42.

The illuminating device 101 has two spacing members 8. The space holding member 8 holds the power supply holding member 3 together with the pillar member 14 so that a space is formed between the light source device 1 and the power supply holding member 3. The upper end of the space holding member 8 is fixed to the power holding member 3, and the lower end is fixed to the base 12. Further, the heights of the space holding member 8 and the pillar member 14 are higher than the height of the fins 7, and the fins 7 are provided between the power supply holding member 3 and the base 12.

FIG. 22 is a perspective view of the lighting device according to the second embodiment when the tilt angle of the light source unit is rotated to a predetermined angle θ. FIG. 23 is a top view of the lighting device according to the second embodiment when the tilt angle of the light source unit is rotated to a predetermined angle θ. Next, a method of adjusting the angle of the light source unit at the time of installing the lighting device 101 will be described with reference to FIGS. 22 and 23.

In the lighting device 101 as in the lighting device 100 of the first embodiment, the light source unit is centered on the first connecting member 5 and the second connecting member 6 by loosening the tightening of the arm arm portion 41 by the first connecting member 5. It can rotate around the axis. Further, since the width W of the recess 34 is wider than the thickness of the arm flange portion 42, a gap is formed between the edge of the recess 34 and the arm flange portion 42 when the angle of the light source unit is 0 degree.

When the light source unit is rotated to a preset angle θ, the arm flange portion 42 comes into contact with the edges of the recesses 14h and 34. Due to the contact between the arm flange portion 42 and the edges of the recesses 14h and 34, the light source unit cannot rotate to an angle larger than the preset angle θ. Therefore, the rotation of the light source unit can be restricted to a predetermined angle by the arm flange portion 42.

As described above, the lighting device 101 of the second embodiment is a light source unit (light source device 1 and power supply device 2) including a light source (corresponding to the light emitting element 10) that irradiates light, similarly to the lighting device 100 of the first embodiment. And the power holding member 3) and one end side of the arm base 40 fixed to the object to be installed and the arm base 40 in the first direction (corresponding to the left-right direction in the drawing) (corresponding to the left direction in the drawing). ) And attached to one side surface of the light source unit in the first direction (corresponding to the arm arm 41 on the left side of the drawing) and the other end side of the arm base 40 in the first direction (corresponding to). An arm having a second arm arm (corresponding to the arm arm 41 on the right side of the drawing) located on the other side surface of the light source unit in the first direction (corresponding to the right direction in the drawing), and a first. The first connecting member 5 that presses the arm arm portion of the light source unit to connect the light source unit and the first arm arm portion, and the light source unit and the second arm arm portion without pressing the second arm arm portion. The light source unit rotates about the second connecting member 6 in a state where the first connecting member 5 does not press the first arm arm portion. Therefore, the lighting device 101 of the second embodiment has the same effect as the lighting device 100 of the first embodiment.

Embodiment 3.
FIG. 24 is a perspective view of the lighting device according to the third embodiment. FIG. 25 is an enlarged view of a pillar member and an arm of the lighting device according to the third embodiment. Next, the lighting device 102 of the third embodiment will be described with reference to FIGS. 24 and 25. The same parts as the lighting device 100 of the first embodiment in the lighting device 102 of the third embodiment will not be described.

The arm 4 of the third embodiment has two arms 4 of a right arm 4 and a left arm 4. The arm 4 of the third embodiment is different from the arm of the first embodiment, and the arm base 40 is not connected by the right arm 4 and the left arm 4. Further, through holes are formed in the arm base 40 of the right arm 4 and the arm base 40 of the left arm 4. A hanging bolt is inserted into the through hole, and the arm base 40 is sandwiched between the nut and the object to be installed, so that the lighting device 100 is fixed to the object to be installed.

Further, when the angle of the light source unit is 0 degrees, the lower portion of the arm flange portion 42 and the upper portion of the pillar member 14 are in contact with each other. Therefore, the light source unit cannot rotate to an angle larger than 0 degrees, which is a preset angle, due to the contact between the arm flange portion 42 and the pillar member 14. Therefore, the rotation of the light source unit can be restricted to a predetermined angle (0 degree) by the arm flange portion 42.

As described above, the lighting device 102 of the third embodiment is a light source unit (light source device 1 and power supply device 2) including a light source (corresponding to the light emitting element 10) that irradiates light, similarly to the lighting device 100 of the first embodiment. And the power supply holding member 3), and the arm base 40 fixed to the object to be installed and the first direction of the light source unit located on the end side in the first direction of the arm base 40 (corresponding to the left-right direction in the drawing). An arm 4 having an arm arm portion 41 attached to the side surface of the above and a restricting portion (corresponding to the arm flange portion 42) formed on the arm arm portion 41, and a connecting member for connecting the light source unit and the arm arm portion 41 (No. 1). The light source unit is provided with (corresponding to one connecting member 5 and the second connecting member 6), and the light source unit is rotated and rotated around the connecting member at a predetermined angle (corresponding to 0 degrees). Contact the regulatory department. Therefore, the lighting device 102 of the third embodiment has the same effect as the lighting device 100 of the first embodiment.

1 light source device, 2 power supply device, 3 power supply holding member, 4 arm, 5 first connecting member, 6 second connecting member, 7 fins, 8 spacing holding member, 10 light emitting element, 11 mounting board, 11a mounting surface, 12 base, 12a base main part, 12b base flange part, 12c notch, 13 cover, 13a cover main part, 13b cover flange part, 14 pillar member, 14a pillar main part, 14b pillar side part, 14c base fixing part, 14d Cover holding part, 14e pillar member screw part, 14f connection hole, 14g power supply holding member fixing part, 14h recess, 20 lighting circuit, 21 terminal block, 21a power line insertion port, 22 lighting circuit case, 23 terminal block case, 30 power supply Device mounting part, 31 holding leg part, 32 base mounting part, 33 protrusion, 34 recess, 40 arm base, 40a arm bending part, 40b first arm base through hole, 40c second arm base through hole, 40d arm Bending hole, 41 arm arm, 41a arm arm through hole, 42 arm flange, 50 connecting member threaded part, 51 head, 52 washer, 60 connecting member threaded part, 61 head, 62 stepped part, 100 ~ 102 lighting device, 200 gaps.

Claims (4)

A light source unit equipped with a light source that irradiates light,
An arm base fixed to the object to be installed, and a first arm arm portion located on one end side of the arm base portion in the first direction and attached to one side surface of the light source unit in the first direction. An arm having a second arm arm located on the other end side of the arm base in the first direction and attached to the other side surface of the light source unit in the first direction.
A first connecting member that presses the first arm arm portion to connect the light source unit and the first arm arm portion,
A second connecting member that connects the light source unit and the second arm arm without pressing the second arm arm.
Equipped with
The light source unit is a lighting device that rotates about the second connecting member as a central axis when the first connecting member does not press the first arm arm portion. The lighting device according to claim 1, wherein a gap is formed between the second connecting member and the second arm arm portion. The second connecting member has a connecting member threaded portion having a cylindrical shape and a spiral thread on the side surface, a head having a diameter longer than the diameter of the connecting member threaded portion, and the connecting member threaded portion. The second arm arm is located between the head and the head and has a diameter longer than the diameter of the connecting member screw portion and shorter than the diameter of the head, and a length parallel to the axial direction of the connecting member screw portion. It has a stepped portion that is longer than the thickness of the portion,
The light source unit is formed with a hole having a diameter larger than the diameter of the threaded portion of the connecting member and smaller than the diameter of the step portion.
In the second arm arm portion, a hole having a diameter larger than the diameter of the step portion and smaller than the diameter of the head portion is formed.
The claim that the light source unit and the second arm arm are connected by inserting the connecting member screw portion into the hole formed in the light source unit and the hole formed in the second arm arm. The lighting device according to 1 or 2. The arm is a substantially U-shaped member in which a long-shaped member is bent and raised by an arm bending portion located at an end portion of the arm base in the first direction.
An arm flange portion is formed on the arm base portion, the arm arm portion, and the arm bending portion, respectively, and the arm base portion, the arm arm portion, and the arm flange portion formed on the arm bending portion are connected to each other. The lighting device according to any one of claims 1 to 3.

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