CN106195806B

CN106195806B - Lighting apparatus

Info

Publication number: CN106195806B
Application number: CN201610335114.0A
Authority: CN
Inventors: 符阪匡司; 神田太郎
Original assignee: Koizumi Lighting Technology Corp
Current assignee: Koizumi Lighting Technology Corp
Priority date: 2015-05-27
Filing date: 2016-05-19
Publication date: 2020-05-05
Anticipated expiration: 2036-05-19
Also published as: JP6484501B2; JP2016225028A; CN106195806A

Abstract

The invention provides a lighting fixture, which can increase the inclination angle of a lamp body in a state of being accommodated in a ceiling without enlarging an opening arranged on the ceiling. The lighting apparatus includes a lamp body, a support portion, a moving member, and a guide portion. The support section has an arm member that supports the lamp main body to be tiltable. The moving member is coupled to the support portion. The guide portion supports the moving member to be tiltable and movable in a predetermined direction. The guide portion guides the lamp body between the first position and the second position by guiding the moving member in a predetermined direction. The guide portion has a pair of wall portions extending in a predetermined direction. The moving member moves in a predetermined direction between the pair of wall portions. The pair of wall portions has a notch portion. The notch portion is provided so as to correspond to a position of the moving member when the lamp main body is disposed at the first position.

Description

Lighting apparatus

Technical Field

The present invention relates to a lighting fixture.

Background

A lighting apparatus is known which is a downlight embedded in a ceiling for use. Further, a downlight is known which is capable of pulling out a lamp main body from a ceiling.

For example, a downlight described in patent document 1 has a structure in which a lamp body pulled out from a ceiling is rotatable and tiltable (head-swinging). The downlight described in patent document 1 is configured such that the lamp body can be rotated and tilted even when the lamp body is stored in a ceiling.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 11-339512

However, in the lighting fixture (downlight) described in patent document 1, in order to increase the inclination angle of the lamp body in the state of being housed in the ceiling, a relatively large opening needs to be provided in the ceiling.

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture which can increase an inclination angle of a lamp body in a state of being housed in a ceiling without enlarging an opening provided in the ceiling.

Means for solving the problems

The lighting apparatus disclosed in the present application includes: the lamp comprises a lamp body, a support part, a moving component and a guide part. The support portion has an arm member that supports the lamp main body to be tiltable. The moving member is coupled to the support portion. The guide portion supports the moving member to be tiltable and movable in a predetermined direction. The guide portion guides the moving member in the predetermined direction, thereby guiding the lamp body between a first position and a second position. The guide portion has a pair of wall portions extending in the predetermined direction. The moving member moves in the predetermined direction between the pair of wall portions. The pair of wall portions has a notch portion. The notch portion is provided so as to correspond to a position of the moving member when the lamp main body is disposed at the first position. The moving member includes a first portion disposed between the pair of wall portions. The notch portion is provided: the first portion may partially protrude to an outer side of at least one of the pair of wall portions when the moving member is inclined.

In the lighting apparatus disclosed in the present application, the first portion may have an inclined surface. The inclined surface may be located near end portions of the pair of wall portions when the lamp main body is disposed at the first position.

In the lighting apparatus disclosed in the present application, the moving member may further include a second portion that is connected to the first portion and that is coupled to the support portion. It can also be: the second portion is thinner than the first portion, and the second portion is located outside the pair of wall portions.

The lighting fixture disclosed in the present application may further include a frame having a frame member. The guide portion may be supported by the frame, and may guide the moving member so that the lamp body passes through an opening formed in the frame member.

The lighting fixture disclosed in the present application may further include a mounting member for mounting the lighting fixture on a ceiling. The mounting member may be fixed to the frame adjacent to a position where the guide portion is fixed to the frame.

In the lighting apparatus disclosed in the present application, the support portion may further include a top plate that rotatably supports the arm member.

Effects of the invention

According to the present invention, the tilt angle of the lamp body in the state of being housed in the ceiling can be increased without enlarging the opening provided in the ceiling.

Drawings

Fig. 1 is a partial cross-sectional view showing a lighting fixture according to an embodiment of the present invention.

Fig. 2 is a perspective view showing a lighting fixture according to an embodiment of the present invention.

Fig. 3 is another perspective view showing a lighting fixture according to an embodiment of the present invention.

Fig. 4 is an enlarged view showing a part of a lighting fixture according to an embodiment of the present invention.

Fig. 5 is an enlarged view showing another part of the lighting apparatus according to the embodiment of the present invention.

Fig. 6 is a perspective view showing a lighting fixture in which a slider and a lamp body according to an embodiment of the present invention are tilted.

Fig. 7 is a view showing a state in which the lighting apparatus according to the embodiment of the present invention is mounted on a ceiling.

Fig. 8 is a top view showing a lighting fixture according to an embodiment of the present invention.

Fig. 9 is a view showing a lighting fixture in which a lamp body according to the embodiment of the present invention is pulled out.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals, and description thereof will not be repeated.

First, the configuration of the lighting fixture 1 according to the present embodiment will be described with reference to fig. 1. Fig. 1 is a partial sectional view showing a lighting fixture 1. The lighting fixture 1 is used by being mounted on a ceiling. In the following description, "up" and "down" correspond to "up" and "down" when the lighting fixture 1 is mounted on a ceiling.

As shown in fig. 1, a lighting fixture 1 includes a lamp body 2. The lighting apparatus 1 according to the present embodiment is configured such that: the lamp main body 2 can be completely pulled out from the ceiling. Fig. 1 shows a state in which the lamp main body 2 is arranged at an upper limit position (an example of a first position). In other words, fig. 1 shows a state where the lamp main body 2 is not pulled out.

The lamp main body 2 includes: an array of light emitting elements 21 (one example of a light source), a lens 22, and a heat sink 23. The light emitting element array 21 and the lens 22 are provided at the lower portion of the lamp main body 2, and the heat radiating element 23 is formed at the upper portion of the lamp main body 2.

The light emitting element array 21 includes a plurality of light emitting elements. In the present embodiment, the light Emitting element array 21 is an led (light Emitting diode) array. In other words, the light emitting element array 21 contains several LEDs. For example, the light emitting element array 21 may be a cob (chip on board) formed by sealing several LEDs with phosphors. Alternatively, the light emitting element array 21 may be an smd (surface Mount device) in which a plurality of LED chips are placed on the mounting surface of the substrate and electrically connected to the conductive pattern of the substrate. Each LED chip is formed by combining an LED and a phosphor into one unit.

The lens 22 is configured to cover the light exit surface of the light emitting element array 21. The light emitted from the light emitting element array 21 passes through the lens 22 and is directed to the outside of the lamp main body 2. In addition, the lens 22 is not essential, and a cover member may be provided in place of the lens 22.

The heat radiating member 23 has a plurality of heat radiating fins 24. The heat dissipation member 23 is disposed above the light emitting element array 21, and mainly dissipates heat generated by the light emitting element array 21 through a plurality of heat dissipation fins 24. This can suppress a temperature rise in the light emitting element array 21.

The lighting fixture 1 includes, in addition to the lamp body 2: a frame 3, a support portion 4, two sliders 5 (an example of a moving member), a pair of guide posts 6 (an example of a guide portion), and a plurality of mounting springs 7 (an example of a mounting member).

The support portion 4 supports the lamp main body 2. Specifically, the support portion 4 includes: a pair of support arms 41 (an example of an arm member), a connection arm 42 (an example of a connection member), and a top plate 43.

The pair of support arms 41 face each other across the lamp main body 2, and support the lamp main body 2 to be tiltable. In the present embodiment, the distal end portion of each support arm 41 is coupled to the lamp main body 2 by a first screw 44. Thus, the lamp main body 2 can be tilted about the first axis a1, and the first axis a1 is the axial center of the first screw 44.

Specifically, the support arm 41 is fixed to the lamp body 2 by the first screw 44, and friction is generated between the lamp body 2 and the support arm 41 and between the support arm 41 and the flange portion of the first screw 44, thereby maintaining the posture (angle) of the lamp body 2. Also, tilting of the lamp main body 2 is possible only in the case where the force applied to the lamp main body 2 is larger than the frictional force generated between the lamp main body 2 and the support arm 41 and between the support arm 41 and the flange portion of the first screw 44.

The connecting arm 42 connects the pair of support arms 41. In the present embodiment, the base end portions of the pair of support arms 41 are integrally connected by the connecting arm 42. The top plate 43 is disposed above the connection arm 42, and rotatably supports the connection arm 42 in a suspended manner. Specifically, the connecting arm 42 is supported to be rotatable about the second axis a 2. This enables the lamp main body 2 to rotate about the second axis a 2. In addition, when the light emitting surface of the light emitting element array 21 is oriented to face directly downward, the second axis a2 is parallel to the axis of the light emitted from the lamp main body 2.

Each slider 5 is coupled to the support portion 4. Specifically, each slider 5 is coupled to an edge portion of the top plate 43. Each slider 5 may be integrally formed with the top plate 43, or may be fixed to the top plate 43.

The pair of guide supports 6 support each slider 5 so as to be tiltable and movable in the up-down direction (an example of a predetermined direction). In other words, the pair of guide pillars 6 guide the respective sliders 5 in the vertical direction. The lamp main body 2 and the support portion 4 are guided in the vertical direction by the pair of guide pillars 6 guiding the sliders 5. Specifically, each guide support 6 includes a pair of

wall portions

61 and 62 extending in the vertical direction. The pair of

wall portions

61, 62 face each other, and each slider 5 moves in the vertical direction between the pair of

wall portions

61, 62. In fig. 1, one of the pair of

wall portions

61 and 62, i.e., the wall portion 61 is on the front side of the sheet of fig. 1. The other wall 62 is on the back side of the sheet of fig. 1.

Each guide post 6 is supported by the frame 3 and stands upward from the frame 3. In the present embodiment, the lower end portion of each guide post 6 is fixed to the frame member 31 of the frame 3 by a second screw 63.

An elongated hole 64 is formed in each guide post 6. Each elongated hole 64 has a long axis extending in the up-down direction. The shaft of the third screw 65 is inserted into each elongated hole 64 from the outside of the corresponding guide post 6. The shaft of the third screw 65 is fixed to the slide 5 located inside the corresponding guide post 6. Thereby, the guide post 6 is sandwiched between the flange portion of the third screw 65 and the slider 5, and the slider 5 is supported by the guide post 6. Further, the tightening force of the third screw 65 is adjusted so that the slider 5 can move (move up and down) and tilt (swing) in the vertical direction only when the force applied to the slider 5 is larger than the frictional force generated between the flange portion of the third screw 65 and the guide post 6 and between the slider 5 and the guide post 6. That is, each slider 5 is held by the third screw 65 on the corresponding guide post 6, and the lamp main body 2 and the support portion 4 do not fall down by their own weight regardless of the position within the movable range in the vertical direction in which the lamp main body 2 and the support portion 4 are arranged. Further, each slider 5 is held by the third screw 65 to the corresponding guide post 6, so that even if each slider 5 is inclined, the posture (angle) of each slider 5 does not change due to the self weight of the lamp main body 2 and the support portion 4.

In the present embodiment, each slider 5 is provided with a spring 65 a. By providing the spring 65a, the third screw 65 can adjust the force with which the slider 5 and the guide post 6 are fastened with higher accuracy. In addition, the spring 65a may be omitted.

Each mounting spring 7 is fixed to the frame 3. In the present embodiment, the base end portion of each mounting spring 7 is fixed to the frame member 31 of the frame 3 by the fourth screw 71. In the present embodiment, two mounting springs 7 are used. The two mounting springs 7 are preferably arranged at equal intervals. This enables the frame 3 to be attached to the ceiling in a stable posture.

Next, the structure of the lighting fixture 1 will be described with reference to fig. 2 and 3. Fig. 2 is a perspective view showing the lighting fixture 1, and fig. 3 is another perspective view showing the lighting fixture 1. Specifically, fig. 3 shows the lighting fixture 1 viewed from a direction different from that of fig. 2. Fig. 2 and 3 show a state in which the lamp body 2 is disposed at the upper limit position. In fig. 2 and 3, the mounting spring 7 is omitted.

As shown in fig. 2 and 3, the frame 3 has a ring-shaped or substantially ring-shaped frame member 31. Here, "substantially annular" means that the frame member 31 is partially missing in the circumferential direction. The frame 3 also has a flange portion 32. The flange portion 32 is formed at the lower edge portion of the frame member 31 and projects outward. The frame 3 has an opening 33 inside the frame member 31 and the flange portion 32, and the lamp main body 2 can pass through the opening 33. The pair of guide supports 6 can guide each slider 5 so that the lamp main body 2 can pass through the opening 33 of the frame 3.

As shown in fig. 2, the wall portion 61 has a notch portion 66. Although not shown, wall 62 also has notch 66, similarly to wall 61. The notch 66 is provided so as to correspond to the position of the slider 5 when the lamp main body 2 is disposed at the upper limit position. In the present embodiment, the notch 66 is formed at the upper end of each of the

wall portions

61 and 62.

Next, the slider 5 will be described with reference to fig. 4 and 5. Fig. 4 is an enlarged view showing a part of the lighting apparatus 1, and is a front view of the slider 5. Fig. 5 is an enlarged view showing another part of the lighting fixture 1. Specifically, fig. 5 shows an enlarged view of a portion surrounded by a dotted line in fig. 1. Fig. 4 and 5 show a state in which the lamp body 2 is disposed at the upper limit position. In fig. 4, the third screw 65 is omitted.

As shown in fig. 4, in the present embodiment, the slider 5 includes a wide portion 51 (an example of the first portion) having a width W1, and the width W1 is smaller than the distance W3 (interval) between the pair of

wall portions

61, 62. The wide portion 51 is disposed between the pair of

wall portions

61 and 62, and moves in the vertical direction between the pair of

wall portions

61 and 62. Further, the closer the width W1 of the wide portion 51 is to the distance W3 between the pair of

wall portions

61 and 62, the more the wobbling of the slider 5 (i.e., the wobbling of the lamp main body 2) that may occur when the slider 5 is moved in the vertical direction can be suppressed. Therefore, the elevating operation of the lamp main body 2 can be smoothly performed. Thus, in the present embodiment, the width W1 of the wide portion 51 is substantially the same as the distance W3 between the pair of

wall portions

61 and 62.

The slide member 5 also has a narrow width portion 52 (an example of a second portion) of a width W2, the width W2 being smaller than the width W1 of the wide width portion 51. The narrow portion 52 is connected to the lower end of the wide portion 51 and also connected to the top plate 43.

As shown in fig. 5, the thickness T1 of the wide width part 51 is greater than the thickness T2 of the narrow width part 52. That is, the narrow width portion 52 is thinner than the wide width portion 51. The thickness T1 of the wide portion 51 is greater than the width W4 (height) of each

wall portion

61, 62, and the narrow portion 52 is located outside the pair of

wall portions

61, 62. Specifically, the narrow-width portion 52 is located on the side of the pair of

wall portions

61 and 62 closer to the center of the lamp main body 2 (top plate 43). Therefore, the narrow portion 52 is separated from the pair of

wall portions

61 and 62 and does not pass between the pair of

wall portions

61 and 62.

As shown in fig. 4 and 5, the wide width portion 51 has a pair of inclined surfaces 53. The pair of inclined surfaces 53 are surfaces connected to the respective side surfaces of the narrow portion 52, and are located near the upper ends of the pair of

wall portions

61 and 62 when the lamp main body 2 is disposed at the upper limit position. In the present embodiment, the inclined surface 53 is a flat surface, but the inclined surface 53 may be a curved surface.

Next, the movement of each slider 5 and the inclination of the lamp main body 2 disposed at the upper limit position will be described with reference to fig. 6. Fig. 6 is a perspective view showing the lighting fixture 1 in which each slider 5 and the lamp body 2 are in a tilted state. Fig. 6 shows a state in which the lamp body 2 is disposed at the upper limit position. In fig. 6, the mounting spring 7 is omitted.

As shown in fig. 6, when the lamp main body 2 is disposed at the upper limit position, the slider 5 can be tilted about the axial center of the third screw 65. That is, when the pair of

wall portions

61 and 62 extend to the upper end of the guide stay 6, the inclination of the slider 5 is prevented by the pair of

wall portions

61 and 62. In contrast, in the present embodiment, since the notch 66 is provided at the upper end portions of the pair of

wall portions

61 and 62, the slider 5 hardly interferes (comes into contact) with the pair of

wall portions

61 and 62 even if the slider 5 is inclined. Thereby, the slider 5 can be tilted.

Therefore, according to the present embodiment, when the lamp main body 2 is disposed at the upper limit position, the support arm 41 can be inclined with the third screw 65 as the axis, and the lamp main body 2 can be inclined with the first screw 44 as the axis. As a result, the tilt range of the lamp main body 2 disposed at the upper limit position can be enlarged.

That is, when the slider 5 cannot be tilted, the range where the lamp body 2 contacts the inner peripheral surface of the frame member 31 of the frame 3 is the tilt range of the lamp body 2 disposed at the upper limit position. In contrast, according to the present embodiment, the pair of support arms 41 are inclined by inclining the slider 5, so that it is possible to avoid interference (contact) between the lamp main body 2 and the inner peripheral surface of the frame member 31. Therefore, the tilt range of the lamp main body 2 disposed at the upper limit position can be enlarged.

Further, if the diameter of the inner peripheral surface of the frame member 31 of the frame 3 is sufficiently large relative to the diameter of the lamp main body 2, even if the slider 5 cannot be tilted, it is possible to avoid interference (contact) between the lamp main body 2 and the inner peripheral surface of the frame member 31. However, in this case, the opening provided in the ceiling needs to be enlarged. In contrast, according to the present embodiment, the tilt range of the lamp main body 2 can be enlarged without increasing the diameter of the inner peripheral surface of the frame member 31. In other words, the tilt range of the lamp body 2 can be enlarged without enlarging the opening provided in the ceiling.

Further, if the width W1 of the slider 5 is made sufficiently small with respect to the distance W3 between the pair of

wall portions

61, 62, tilting of the slider 5 becomes possible without providing the notch portion 66. However, in this case, the slider 5 is shaken when the slider 5 is moved in the vertical direction, and thus the lamp main body 2 cannot be smoothly lifted and lowered. In contrast, according to the present embodiment, the width W1 of the wide portion 51 is made to be close to the distance W3 between the pair of

wall portions

61 and 62, so that the lamp main body 2 can be smoothly lifted and lowered, and the slider 5 can be tilted.

In the present embodiment, the width W1 of the wide portion 51 is made substantially equal to the distance W3 between the pair of

wall portions

61 and 62, so that the slider 5 can be prevented from wobbling. As a result, when the slider 5 tilts, the slider 5 partially protrudes outside at least one of the pair of

wall portions

61 and 62 through the notch portion 66.

In the present embodiment, the notch 66 is provided with: when the slider 5 is tilted, the wide width portion 51 partially protrudes to the outside of at least one of the pair of

wall portions

61, 62 through the notch portion 66. In other words, the notch portion 66 is provided: when the lamp main body 2 is disposed at the upper limit position, the upper ends of the pair of

wall portions

61 and 62 are located near the lower end of the wide portion 51. Therefore, for example, the positions of the upper ends of the pair of

wall portions

61, 62 can be made higher than in the case where the slider 5 has a rectangular parallelepiped shape. As a result, the distance over which the slider 5 is guided by the pair of

wall portions

61 and 62 can be increased. This improves the stability of the elevating operation of the slider 5 (lamp main body 2).

In the present embodiment, the narrow portion 52 is thinner than the wide portion 51 and is located outside the pair of

wall portions

61 and 62. Therefore, when the slider 5 is tilted, the narrow-width portion 52 does not interfere with the pair of

wall portions

61 and 62. This can expand the tilting range of the slider 5.

In the present embodiment, the wide portion 51 has a pair of inclined surfaces 53. Thereby, the inclination angle of the slider 5 can be increased in both directions. Further, the upper ends of the pair of

wall portions

61 and 62 can be positioned further upward by providing the wide portion 51 with the pair of inclined surfaces 53. In other words, the length of the notch 66 in the vertical direction can be made shorter. This can increase the distance over which the slider 5 is guided by the pair of

wall portions

61 and 62. Further, by providing the wide portion 51 with the pair of inclined surfaces 53, the posture (inclination) of the slider 5 can be corrected by the pair of

wall portions

61 and 62 when the slider 5 is lowered. That is, when the slider 5 is lowered while maintaining the inclined posture, the one inclined surface 53 abuts on the upper end of at least one of the pair of

wall portions

61 and 62. Then, the one inclined surface 53 slides on the upper end of at least one of the pair of

wall portions

61, 62. As a result, the posture of the slider 5 is corrected to a non-inclined state or a substantially non-inclined state.

Next, a method of attaching the lighting fixture 1 to the ceiling 100 will be described with reference to fig. 7. Fig. 7 is a diagram showing a state in which the lighting fixture 1 is mounted on the ceiling 100. Fig. 7 shows a state in which the lamp body 2 is disposed at the upper limit position.

The ceiling 100 is formed with, for example, a circular opening 101 for mounting the lighting fixture 1. The diameter of the opening 101 is larger than the diameter of the frame member 31 and smaller than the diameter of the flange portion 32. The operator inserts the lighting fixture 1 into the opening 101 of the ceiling 100 until the flange portion 32 of the frame 3 abuts against the ceiling 100 in a state where the tip end side of the attachment spring 7 is elastically deformed so as to approach the side surface of the lamp main body 2. Then, the mounting springs 7 are expanded by their elastic force, and the ceiling 100 is sandwiched between the flange portion 32 of the frame 3 and the mounting springs 7, whereby the frame 3 (the lighting fixture 1) is fixed to the ceiling 100. In this way, the lighting fixture 1 is attached (locked) to the ceiling 100 by the elastic force of the attachment spring 7.

Next, referring to fig. 1 and 8, the position where the mounting spring 7 is fixed to the frame 3 will be described. Fig. 8 is a top view showing the lighting fixture 1. As shown in fig. 1 and 8, in the present embodiment, the positions at which the two mounting springs 7 are fixed to the frame 3 (frame member 31) are adjacent to the positions at which the pair of guide stays 6 are fixed to the frame 3. As described with reference to fig. 7, the lighting fixture 1 is mounted on the ceiling 100, and the mounting spring 7 stands upward. Therefore, when the lamp main body 2 disposed at the upper limit position is tilted, the lamp main body 2 comes into contact with (interferes with) the mounting spring 7, and there is a possibility that the lamp main body 2 cannot be tilted at a desired angle. On the other hand, by fixing the mounting springs 7 at respective positions adjacent to the positions where the pair of guide stays 6 are fixed to the frame 3, interference between the lamp main body 2 and the mounting springs 7 when the lamp main body 2 is tilted can be suppressed.

Fig. 9 is a diagram showing the lighting fixture 1 in a state where the lamp body 2 is pulled out. Specifically, fig. 9 shows a state in which the lamp body 2 is lowered to the lower limit position (an example of the second position). In fig. 9, the lamp body 2 inclined by 90 degrees about the first axis a1 (the axial center of the first screw 44) described with reference to fig. 1 is shown by a two-dot chain line.

As shown in fig. 9, the lighting fixture 1 according to the present embodiment can completely pull out the lamp body 2. The lamp body 2 is located at the lower limit position after being completely pulled out from the ceiling. In other words, the lamp main body 2 is guided from the upper limit position to the lower limit position by the pair of guide stays 6, passes through the opening 33 (see fig. 2 and 3) of the frame 3, and is completely pulled out from the ceiling.

According to the present embodiment described above, the tilt angle of the lamp main body 2 in the state of being housed in the ceiling can be increased without enlarging the opening 101 provided in the ceiling 100.

The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and can be implemented in various ways within a range not departing from the gist thereof.

For example, in the embodiments of the present invention, the case where the light source is an LED array is described, but the light source is not limited to the LED array. For example, the light source may be constituted by one LED. Alternatively, the light source may be a fluorescent lamp, an incandescent lamp, an organic EL, or the like.

In the embodiment of the present invention, the case where the present invention is applied to the lighting apparatus 1 in which the lamp main body 2 can be lifted, tilted, and rotated has been described, but the present invention may be applied to only the lighting apparatus in which the lamp main body 2 can be lifted and tilted.

In the embodiment of the present invention, the description has been given of the mode in which the lamp main body 2 is supported by the pair of support arms 41 so as to be tiltable, but the present invention is also applicable to the mode in which the lamp main body 2 is supported by one support arm 41 so as to be tiltable.

In the embodiment of the present invention, the embodiment has been described in which the wide width portion 51 has the pair of inclined surfaces 53, but the present invention can also be applied to a mode in which the wide width portion 51 has one inclined surface 53. In this case, the inclination angle of the slider 5 can be increased in one direction.

In the embodiment of the present invention, the structure in which the narrow width portion 52 is connected to the lower end of the wide width portion 51 has been described, but the shape of the portion connected to the lower end of the wide width portion 51 is not limited to the shape having a smaller width than the wide width portion 51, and may be a shape having a larger width than the wide width portion 51.

In the embodiment of the present invention, the structure in which the narrow width portion 52 is thinner than the wide width portion 51 is described, but the present invention is not limited to this. For example, the narrow-width portions 52 may have the same thickness as the wide-width portions 51. In this case, however, the portion connected to the lower end of the wide portion 51 is preferably formed to have a smaller width than the wide portion 51.

In the embodiment of the present invention, the case where the lighting fixture 1 includes two mounting springs 7 has been described, but the number of the mounting springs 7 is not particularly limited as long as the inclination of the lamp main body 2 disposed at the upper limit position is not hindered. The interval between the plurality of mounting springs 7 is not particularly limited as long as the inclination of the lamp main body 2 disposed at the upper limit position is not hindered, and may not be an equal interval.

In the embodiment of the present invention, the description has been given of the embodiment in which the mounting spring 7 (spring member) is used as a member for mounting the lighting fixture 1 on the ceiling, but the present invention is not limited to this. For example, a hardware slide rail may be used as a member for mounting the lighting fixture 1 on a ceiling.

Industrial applicability

The present invention can be applied to the field of lighting fixtures, and is particularly useful in the field of embedded lighting fixtures.

Description of the reference numerals

1 Lighting appliance

2 lamps and lanterns main part

4 support part

5 sliding part (moving parts)

6 guide pillar (guide part)

41 supporting arm (arm component)

51 broad width part (first part)

52 narrow width part (second part)

53 inclined plane

61. 62 wall part

66 notch part

Claims

1. A lighting fixture is provided with:

a lamp body;

a support portion having an arm member that supports the lamp main body to be tiltable;

a moving member coupled to the support portion; and

a guide portion that supports the moving member so as to be tiltable and movable in a predetermined direction, and guides the lamp main body between a first position and a second position by guiding the moving member in the predetermined direction,

the guide portion has a pair of wall portions extending in the predetermined direction,

the moving member moves in the predetermined direction between the pair of wall portions,

the pair of wall portions have a cutout portion provided so as to correspond to a position of the moving member when the lamp main body is disposed at the first position,

the moving member has a first portion disposed between the pair of wall portions,

the notch portion is provided: the first portion may partially protrude to an outer side of at least one of the pair of wall portions when the moving member is inclined.

2. The lighting apparatus according to claim 1,

the first portion has an inclined surface,

the inclined surface is located near end portions of the pair of wall portions when the lamp main body is disposed at the first position.

3. The lighting apparatus according to claim 1 or claim 2,

the moving member further includes a second portion connected to the first portion and coupled to the support portion,

the second portion is thinner than the first portion, and the second portion is located outside the pair of wall portions.

4. The lighting apparatus according to claim 1 or claim 2,

further comprises a frame having a frame member,

the guide portion is supported by the frame, and guides the moving member so that the lamp body passes through an opening formed in the frame member.

5. The lighting apparatus according to claim 4,

further comprises a mounting member for mounting the lighting fixture on a ceiling,

the mounting member is fixed to the frame adjacent to a position where the guide portion is fixed to the frame.

6. The lighting apparatus according to claim 1 or claim 2,

the support portion further has a top plate that supports the arm member to be rotatable.