Lighting fixtures

Abstract

To provide a luminaire that can improve workability.SOLUTION: A luminaire 10 comprises a light source unit 12, a cover, and an appliance body 23 capable of being mounted on an installation surface while being fitted with either the light source unit 12 or the cover.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] Embodiments of the present invention relate to a lighting fixture attached to an installation surface.

Background Art

[0002] Conventionally, in a lighting fixture in which a light source unit is disposed on the front side of the fixture body, during construction, the light source unit is removed from the fixture body, the fixture body is installed on the installation surface, and then, the fixture body side and the light source unit side are electrically connected, and the light source unit is attached to the fixture body.

[0003] Thus, during the construction of the lighting fixture, since it is necessary to remove the light source unit from the fixture body, after installing the fixture body on the installation surface, the light source unit must be electrically connected to the fixture body side and then attached to the fixture body, and the construction work has become complicated.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide a lighting fixture capable of improving workability.

Means for Solving the Problems

[0006] The lighting fixture according to the embodiment includes a long fixture body having a back surface portion, and a cover having an inclined surface that is attached to a front side that is one end side in the short side direction of the fixture body and is spaced apart from the back surface portion and inclines toward the back surface portion on the other end side in the short side direction, and a long light source unit that is detachably attached along the inclined surface to the front side that is the other end side in the short side direction of the fixture body and is spaced apart from the back surface portion. approaching

Effects of the Invention

Effects of the Invention

[0007] According to the lighting fixture of this embodiment, improved ease of installation can be expected. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a lighting fixture mounted on a wall, showing the first embodiment. [Figure 2] This is a perspective view of the same lighting fixture with the cover removed. [Figure 3] This is a perspective view of the same lighting fixture with the cover and light source unit removed. [Figure 4] This is a perspective view of the same lighting fixture mounted on the ceiling. [Figure 5] This is a front view of the same lighting fixture with the cover removed. [Figure 6] This is a perspective view of the same lighting fixture with the cover removed. [Figure 7] This is a cross-sectional view of the same lighting fixture. [Figure 8] This is a cross-sectional view of the emergency light unit of the same lighting fixture. [Figure 9] The above diagrams show the light distribution of the emergency light unit of the same lighting fixture, with (a) being the light distribution when mounted on a wall and (b) being the light distribution when mounted on a ceiling. [Figure 10] This is a perspective view of the motion sensor and emergency lighting unit of the same lighting fixture. [Figure 11] This is a wiring diagram of a portion of the same lighting fixture. [Figure 12] This is a cross-sectional view showing the battery and mounting bracket of the same lighting fixture. [Figure 13] This is a perspective view showing the wall-mounted state of a lighting fixture representing the second embodiment. [Figure 14] This is a perspective view of the same lighting fixture with the cover removed. [Figure 15] This is a perspective view of the same lighting fixture with the cover and light source unit removed. [Modes for carrying out the invention]

[0009] Hereinafter, the first embodiment will be described with reference to FIGS. 1 to 12.

[0010] FIGS. 1 to 4 show a lighting fixture 10. This lighting fixture 10 is installed on an installation surface such as a wall surface or a ceiling surface of a staircase landing, for example, and is used to illuminate the staircase and the landing. Further, this lighting fixture 10 is an emergency lighting fixture that performs dimming control in response to detection of a person moving on the staircase and lights up with an emergency power source when the normal power supply fails.

[0011] Note that FIG. 1 shows the state where the lighting fixture 10 is attached to the wall surface, and FIG. 4 shows the state where the lighting fixture 10 is attached to the ceiling surface. Hereinafter, the state where the lighting fixture 10 is attached to the wall surface will be mainly described.

[0012] The lighting fixture 10 is provided in a long shape along the width direction. The lighting fixture 10 includes a housing 11, a light source unit 12 and an emergency lamp unit 13 which are main light sources or normal light sources arranged on the front side of the housing 11 (appliance body 23), a terminal block 14, a power supply unit 15, a human sensor 16, a sensor control unit 17, an emergency lighting unit 18 as a device, a battery 19, etc. arranged in the housing 11 (appliance body 23).

[0013] The housing 11 includes an appliance body 23 and a cover 24 detachably attached to the front surface of the appliance body 23. An inclined surface 25 that inclines toward one side in the short side direction is formed on the front surface of the housing 11. The angle formed by the inclined surface 25 and the installation surface (the back surface portion 27 of the appliance body 23) is, for example, 30°.

[0014] The appliance body 23 has an open front side and is formed in a long shape along the width direction. The appliance body 23 has a back surface portion 27 which is an attachment surface for attaching to an installation surface such as a wall surface or a ceiling surface, upper and lower side surface portions 28, 29 bent forward from both sides in the short side direction of the back surface portion 27, and end surface portions 30 at both ends in the longitudinal direction.

[0015] On the front side of the fixture body 23, the light source unit 12 and the emergency light unit 13 are arranged in the lower area, which is one of the shorter sides, while the upper area, which is the other side, has a front opening 31 that is opened and closed by a cover 24.

[0016] The rear portion 27 is provided with a wiring hole 32 for drawing an external power line from the installation surface into the fixture body 23, and a mounting portion 33 for attaching the fixture body 23 to the installation surface. The mounting portion 33 is attached to a bolt protruding from the installation surface and has mounting holes 34 and 35 provided on both ends in the longitudinal direction of the rear portion 27. The fixture body 23 is attached to the installation surface by passing the bolt through the mounting holes 34 and 35 and screwing a nut onto the end of the bolt and tightening it. One mounting hole 34 is formed as an elongated hole that is long in the longitudinal direction of the fixture body 23, and the other mounting hole 35 is formed as a dimpled hole that is long in the longitudinal direction of the fixture body 23.

[0017] The fixture body 23, with the light source unit 12 attached, has a space formed between it and the light source unit 12 that allows for installation of mounting parts 33 and the like from the outside. Specifically, the fixture body 23 has wiring holes 32 and mounting parts 33 located in positions that are exposed when the cover 24 is removed with the light source unit 12 and emergency light unit 13 attached to it, as well as a terminal block 14, a power supply unit 15, a motion sensor 16, a sensor control unit 17, an emergency lighting unit 18, and a battery 19. In other words, as shown in Figure 5, when viewing the fixture body 23 from the front, the wiring holes 32 and mounting parts 33 are located in positions that are not covered by the light source unit 12 and emergency light unit 13, and are accessible from the front opening 31 of the fixture body 23, as well as a terminal block 14, a power supply unit 15, a motion sensor 16, a sensor control unit 17, an emergency lighting unit 18, and a battery 19. Furthermore, a motion sensor 16 is positioned in the center of the longitudinal direction of the fixture body 23, a terminal block 14, a power supply unit 15, and a battery 19 are positioned on the left side, one end of the longitudinal direction from the center, and an emergency lighting unit 18, a sensor control unit 17, and a battery 19 are positioned on the right side, the other end of the longitudinal direction from the center. Note that the battery 19 may be mounted on either the left or right side of the fixture body 23 as needed.

[0018] A pair of mounting bases 36 for attaching the light source unit 12 and the emergency light unit 13 are attached to the lower region near both ends of the fixture body 23, on one of the shorter sides. The front surface of the mounting bases 36 is inclined to correspond to the inclined surface 25 on the front of the housing 11. A spring-loaded bracket 37 for attaching the light source unit 12 is attached to the front surface of the mounting bases 36.

[0019] The pair of mounting bases 36 are spaced apart from each other in the longitudinal direction of the fixture body 23, and as shown in Figure 6, a wiring space 38 communicating with the inside of the fixture body 23 is formed between the pair of mounting bases 36 and the back side of the light source unit 12 attached to the pair of mounting bases 36. That is, the light source unit 12 is mounted on the pair of mounting bases 36 at a distance from the back side of the fixture body 23, and the space formed on the back side of the light source unit 12 is in communication with the space formed between the back side of the fixture body 23 and the cover 24.

[0020] The cover 24 also has a front portion 40 and a side portion 41 that is bent from the front portion 40. The cover 24 is positioned so that the front portion 40 covers the front opening 31 of the fixture body 23, and the side portion 41 overlaps the upper side portion 28 of the fixture body 23, and is detachably attached to the side portion 28 by screws or the like.

[0021] The front portion 40 of the cover 24 has an inclined surface 25 formed on the front of the housing 11. This inclined surface 25 also functions as a reflective surface that reflects light from the light source unit 12. The side portion 41 of the cover 24 is inclined toward the front portion 40 at its front end, but it does not have to be inclined.

[0022] In the center of the front portion 40 of the cover 24, there is a sensor hole 42 in which a motion sensor 16 is positioned, and an inspection window 43 facing the emergency lighting unit 18.

[0023] Next, the light source unit 12 is provided in an elongated shape along the width direction of the lighting fixture 10. As shown in Figure 7, the light source unit 12 comprises a chassis 47, a light-emitting module 48 mounted on the front of the chassis 47, a light-transmitting cover 49 that covers the light-emitting module 48 and is mounted on the chassis 47, and a pair of mounting springs 50 that attach the light source unit 12 to the fixture body 23.

[0024] The light-emitting module 48 comprises a long substrate 52 and light-emitting elements (semiconductor light-emitting elements, not shown) mounted on the surface of the substrate 52. For example, surface-mount LEDs are used as light-emitting elements, and multiple light-emitting elements are mounted in one or more rows along the longitudinal direction of the substrate 52. Note that the light-emitting element is not limited to LEDs; other elements such as organic EL may also be used. The light-emitting module 48 is electrically connected to the power supply unit 15 by connecting wiring when the light source unit 12 is attached to the fixture body 23.

[0025] The light source unit 12 is mounted parallel to the inclined surface 25 on the front of the housing 11, that is, it is mounted at an angle to the rear portion 27 which is attached to the mounting surface.

[0026] The translucent cover 49 is made of a resin that is translucent and light-diffusing, and its cross-sections intersecting in the longitudinal direction are formed in a convex curved shape.

[0027] The mounting spring 50 is attached to the rear of the chassis 47 near both ends in the longitudinal direction. With the mounting spring 50 engaged with the spring receiving fitting 37 of the mounting base 36 attached to the fixture body 23, the elastic force of the mounting spring 50 pulls the light source unit 12 towards the mounting base 36, and the light source unit 12 engages with the pair of mounting bases 36 and is attached to the fixture body 23. The light source unit 12 can also be removed from the fixture body 23 by pulling the light source unit 12 away from the fixture body 23 against the elastic force of the mounting spring 50 and detaching the mounting spring 50 from the spring receiving fitting 37. The light source unit 12 is mounted on the lower region of the front of the fixture body 23, which is one of the shorter sides, and is positioned at an angle so that the optical axis direction is perpendicular to the inclined surface 25 on the front of the housing 11 and points diagonally downward.

[0028] Furthermore, the emergency light unit 13 is mounted on the front of the fixture body 23, positioned on both sides of the light source unit 12 in the longitudinal direction. As shown in Figure 8, the emergency light unit 13 includes an emergency light source 56, and a front frame 57 which is an emergency light source cover and decorative frame to which the emergency light source 56 is mounted.

[0029] The emergency light source 56 includes a light-emitting section 59 and a lens 62 that controls the light distribution from the light-emitting section 59.

[0030] The light-emitting section 59 uses light-emitting elements (semiconductor light-emitting elements) such as LEDs. For example, the light-emitting section 59 uses a COB module in which multiple LED chips are mounted on a substrate and these LED chips are covered with a sealing member containing phosphor. The light-emitting section 59 is mounted in an annular socket 60 and attached to the front surface of the heat sink 61 by the socket 60 in close contact with it. The heat sink 61 is attached to the rear side of the front frame 57 and has engaging claws (not shown) protruding from its end that engage with the end surface 30 of the fixture body 23 for attachment.

[0031] The lens 62 is made of, for example, glass. The lens 62 has a lens portion 63 and a rim portion 64 that protrudes from the periphery of the lens portion 63. The inner surface of the lens portion 63 facing the light-emitting portion 59 is concave, and the opposite outer surface is convex. The lens portion 63 protrudes forward from the front frame 57.

[0032] The lens 62 is formed in an irregular shape to obtain the desired light distribution. The center of the light-emitting part 59 is located on the central axis along the longitudinal direction of the light source unit 12, but the center of the lens 62 is not located on the central axis along the longitudinal direction of the light source unit 12. Figure 9(a) shows the light distribution diagram of the lens 62 when the lighting fixture 10 is mounted on a wall, and Figure 9(b) shows the light distribution diagram of the lens 62 when the lighting fixture 10 is mounted on a ceiling. In Figures 9(a) and (b), A is the optical axis direction of the light-emitting part 59, perpendicular to the light-emitting surface of the light-emitting part 59. The lens 62 provides a light distribution with a peak in the forward direction when mounted on a wall as shown in Figure 9(a), and a light distribution with a peak in the downward direction when mounted on a ceiling as shown in Figure 9(b), thus providing suitable light distribution characteristics for either mounting position.

[0033] The front frame 57 is made of metal or a non-combustible material. The front frame 57 has a cover portion 66 that covers the emergency light source 56, a mounting plate portion 67 (see Figure 3) that protrudes from one end of the cover portion 66 and is attached to the front of the mounting base 36, and a partition portion 68 that is positioned between the light source unit 12 and the emergency light source 56 and protrudes beyond the emergency light source 56.

[0034] An opening 69 is provided in the center of the cover portion 66, through which the lens portion 63 of the lens 62 protrudes. A tapered portion 70 is provided at the edge of the opening 69, which expands forward in areas where there is no partition portion 68. In this embodiment, the tapered portion 70 is provided around the entire circumference of the edge of the opening 69. The inclination angle of the tapered portion 70 is set to an angle that expands and inclins towards the wall rather than directly downward when the lighting fixture 10 is mounted on a wall, and to an angle that expands and inclins upward rather than horizontal when the lighting fixture 10 is mounted on a ceiling.

[0035] The partition wall 68 is positioned between the light source unit 12 and the light-transmitting cover 49. The partition wall 68 protrudes more than the light-transmitting cover 49 and lens 62 of the light source unit 12, separating the light-transmitting cover 49 and lens 62 of the light source unit 12. On the surface of the partition wall 68 facing the lens 62, an inclined reflective surface 71 is formed so as to expand forward from the front surface of the cover 66.

[0036] The partition wall 68 is provided between the emergency light source 56 and the light source unit 12, only on one side of the cover portion 66 facing the light source unit 12, and not on the other three sides of the cover portion 66. Therefore, a flat portion 72 lower than the tip of the emergency light source 56 is formed between the emergency light source 56 and the end of the fixture body 23. This flat portion 72 is formed by the front surface of the cover portion 66 of the front frame 57. Due to this flat portion 72, there is no light-shielding object between the emergency light source 56 and the end of the fixture body 23, and light from the emergency light source 56 is irradiated toward the end of the fixture body 23.

[0037] Furthermore, the terminal block 14 is attached to the rear part 27 of the fixture body 23. External power lines, which are drawn into the fixture body 23 from the wiring hole 32, are connected to the terminal block 14. The terminal block 14 is electrically connected to the power supply unit 15, the sensor control unit 17, and the emergency lighting unit 18 by internal wiring, which is an electric wire. If there are many power supply points via internal wiring, an internal wiring terminal block 14a may be used as part of the terminal block 14. This internal wiring terminal block 14a is not used for connecting external power lines, so it may be located on the rear side of the fixture body 23 behind the light source unit 12, or it may be located in a position where it is exposed when the cover 24 is removed with the light source unit 12 and the emergency lighting unit 13 attached to the fixture body 23.

[0038] Furthermore, the power supply unit 15 is attached to the rear part 27 of the fixture body 23. The power supply unit 15 has an external power input section, which is the primary side, electrically connected to the terminal block 14 by internal wiring, and a lighting power output section, which is the secondary side, electrically connected to the light source unit 12 by connecting wiring. The connecting wiring is detachable from the light source unit 12 by connector connections.

[0039] The power supply unit 15 converts an external power source, such as an AC power supply, supplied through the terminal block 14 into a lighting power source, such as a DC power supply, for lighting the light-emitting elements of the light-emitting module 48, and supplies it to the light-emitting module 48 of the light source unit 12. For example, the power supply unit 15 includes a rectifier circuit that rectifies the AC voltage supplied from the external AC power supply, a power factor correction circuit such as a boost chopper circuit that converts the AC voltage rectified by the rectifier circuit into a DC voltage, and a drive circuit such as a step-down chopper circuit that converts the DC voltage from the power factor correction circuit into a predetermined DC voltage to be supplied to the light-emitting elements. The drive circuit has a switching element, and controls the current supplied to the light-emitting elements by the switching operation of this switching element, thereby dimming each light-emitting element. The switching operation of the switching element is controlled according to a control signal such as a dimming signal input from the sensor control unit 17.

[0040] Furthermore, the motion sensor 16 is, for example, a radio wave type, and transmits and receives detection radio waves from the front sensor surface 16a to detect the presence of a person moving in the area in front of the lighting fixture 10. As shown in Figure 10, the motion sensor 16 is attached to the upper side portion 28 of the fixture body 23 by a support member 75. The support member 75 supports the motion sensor 16 at an angle, corresponding to the inclination of the inclined surface 25 on the front of the housing 11, so that the sensor surface 16a is, for example, angled downward by 30°. The front end of the motion sensor 16 protrudes forward from the sensor hole 42 of the cover 24. The motion sensor 16 is located in the center of the longitudinal direction of the fixture body 23 and overlaps with the wiring hole 32 provided on the back surface 27 of the fixture body 23. However, it is attached to the upper side surface 28 of the fixture body 23 by a support member 75, rather than the back surface 27, so that it is separated from the wiring hole 32 and does not interfere with the external power line drawn in from the wiring hole 32.

[0041] Furthermore, the sensor control unit 17 is attached to the rear part 27 of the fixture body 23. The sensor control unit 17 is electrically connected to the terminal block 14 by internal wiring and operates by receiving an external power supply. The sensor control unit 17 is electrically connected to the motion sensor 16 by internal wiring and controls the motion sensor 16 to detect the presence of a person. The sensor control unit 17 is electrically connected to the power supply unit 15 by internal wiring and sends control signals such as dimming signals to the power supply unit 15 in response to the detection of the presence of a person by the motion sensor 16.

[0042] Furthermore, the emergency lighting unit 18 is electrically connected to the terminal block 14 by internal wiring and operates on an external power supply, and is also electrically connected to the battery 19 by internal wiring and controls the charging and discharging of the battery 19.

[0043] The emergency lighting unit 18 includes, for example, a resin case 78 and circuits housed within the case 78, namely a power outage detection circuit for detecting a power outage of the external power supply, a charging circuit for charging the battery 19 when the external power supply is supplied, and an emergency lighting circuit for supplying lighting power to the emergency light source 56 using the power of the battery 19 when the external power supply is powered out. Furthermore, the emergency lighting unit 18 includes an inspection unit 79 provided on the front of the case 78 that instructs the inspection of the emergency lighting, including the emergency light source 56 and the battery 19, and an inspection circuit that executes an inspection mode in response to this inspection instruction.

[0044] The inspection unit 79 is positioned opposite the inspection window 43 of the cover 24 of the main body 23 of the device, and includes a receiving unit that receives wireless signals such as infrared signals transmitted from a terminal such as an inspection remote control, a transmitting unit that transmits inspection results to the terminal, an inspection switch for manually instructing the inspection, and a monitor lamp that displays the inspection results, etc.

[0045] As shown in Figures 7 and 10, the emergency lighting unit 18 is attached to the upper side portion 28 of the fixture body 23 by a support member 81. The support member 81 supports the emergency lighting unit 18 at an angle to the rear portion 27 of the fixture body 23, corresponding to the inclination of the inclined surface 25 on the front of the housing 11, such that the front inspection portion 79 faces downward, for example, by 30°. The support member 81 has a support plate portion 82 to which the emergency lighting unit 18 is attached, and a mounting plate portion 83 which is bent from both sides of the support plate portion 82 and attached to the upper side portion 28 of the fixture body 23 by screws or the like. The mounting plate portion 83 is bent from the rear side region of the support plate portion 82, and the front side region of the support plate portion 82 is open. The inspection portion 79 of the emergency lighting unit 18, which is supported at an angle by the support member 81, faces an inspection window 43 provided on the inclined surface 25 of the cover 24 (housing 11).

[0046] The support member 81 supports the emergency lighting unit 18 so as to form three wiring regions 84 between the emergency lighting unit 18 and the housing 11. Specifically, the wiring region 84 includes a first wiring region 84a between the emergency lighting unit 18 and the first surface 11a of the housing 11, a second wiring region 84b between the emergency lighting unit 18 and the second surface 11b of the housing 11, and a third wiring region 84c enclosed by the emergency lighting unit 18 and the first and second surfaces 11a and 11b of the housing 11. The first surface 11a of the housing 11 is the rear surface 27 of the fixture body 23, and the second surface 11b includes the side surface 28 of the fixture body 23 and the side surface 41 of the cover 24, with the second surface 11b projecting forward relative to the first surface 11a.

[0047] Figure 11 shows a wiring diagram of part of the lighting fixture 10. The wiring area 84 formed by the emergency lighting unit 18 contains internal wiring connecting the first electrical unit E1 and the second electrical unit E2, which are located on both sides of the emergency lighting unit 18. The first electrical unit E1 includes a terminal block 14, a power supply unit 15, and a motion sensor 16, while the second electrical unit E2 includes a sensor control unit 17.

[0048] The three wiring regions 84 formed by the emergency lighting unit 18 are wired separately so that the power line AC and the signal line S of the internal wiring do not come into contact with each other. For example, the power line AC1, which electrically connects the terminal block 14 and the emergency lighting unit 18, is wired to the first wiring region 84a, the power line AC2, which electrically connects the terminal block 14 and the sensor control unit 17, is wired to the second wiring region 84b, and the signal line S, which electrically connects to the sensor control unit, is wired to the third wiring region 84c. Note that the power line AC and the signal line S can be wired to any of the wiring regions 84 as long as they are wired separately so as not to overlap. For example, if the signal line S is wired to the second wiring region 84b or the third wiring region 84c, and multiple power lines AC are wired to the first wiring region 84a, it becomes possible to wire without considering contact between multiple power lines AC, thus reducing the wiring work. Furthermore, by wiring the signal line S to the third wiring area 84c and wiring the power line AC, which is susceptible to noise among the multiple power lines AC, to the second wiring area 84b, it becomes possible to isolate and wire the power line AC that is susceptible to noise.

[0049] Furthermore, the battery 19 is a rechargeable storage battery. The battery 19 uses two battery packs, which are located on both ends of the longitudinal direction of the fixture body 23 and are electrically connected to the emergency lighting unit 18 by internal wiring.

[0050] The battery 19 is attached to the device body 23 by a mounting bracket 87. As shown in Figures 2 and 12, the mounting bracket 87 is formed in a frame shape from a single metal plate and has a front frame portion 88, end frame portions 89 at both ends, and side frame portions 90 facing the upper side plate portion of the device body. A substantially L-shaped locking piece portion 91 protrudes from the tip of one end frame portion 89. One end of the mounting bracket 87 is engaged with the outer surface of the device body 23 by the locking piece portion 91 passing through the back portion 27, and the other end of the mounting bracket 87 is attached to the back portion 27 of the device body 23 by a screw 92. With the screw 92 removed, the mounting bracket 87 can rotate around the engagement point of the locking piece portion 91 that passes through the back portion 27 of the device body 23, allowing the battery 19 to be replaced. Inside the device body 23, a space is provided on the side in the direction of the opening rotation of the mounting bracket 87 that allows the mounting bracket 87 to rotate in the opening direction. Furthermore, if the battery 19 is mounted on either the left or right side of the main unit 23 as needed, only one mounting bracket 87 is required.

[0051] When installing the lighting fixture 10 on the mounting surface, the cover 24 is removed from the fixture body 23, and the front opening 31 of the fixture body 23 is opened.

[0052] External power lines protruding from the installation surface are passed through the wiring hole 32 into the fixture body 23 via the front opening 31 of the fixture body 23.

[0053] The fixture body 23 is attached to the mounting surface by passing two bolts, which protrude from the mounting surface through the front opening 31 of the fixture body 23, through two mounting holes 34 and 35 on the rear part 27 of the fixture body 23, and tightening them by screwing nuts onto the ends of the bolts. When attaching the fixture body 23 to a ceiling surface, the fixture body 23 can be attached to the ceiling surface by lightly screwing a nut onto the end of one bolt, passing the bolt and nut through the keyhole-shaped mounting hole 35 on one end of the fixture body 23, moving the fixture body 23 to one end in the longitudinal direction, and temporarily fastening one end of the fixture body 23 to one bolt.

[0054] The external power supply wire, which is routed through the wiring hole 32 into the fixture body 23 via the front opening 31 of the fixture body 23, is connected to the terminal block 14.

[0055] The cover 24 is attached to the fixture body 23. In this way, the lighting fixture 10 is installed on a mounting surface such as the wall or ceiling of the stair landing.

[0056] Under normal circumstances, when the lighting fixture 10 is supplied with an external power source, the power supply unit 15 converts the external power source into a predetermined lighting power source and supplies it to the light source unit 12. As a result, the light source unit 12 lights up, illuminating the stairs and landings.

[0057] When the lighting fixture 10 is mounted on the wall, the light source unit 12 is positioned on the lower side of the fixture body 23 and is tilted diagonally downwards. As a result, light is shone onto the lower side of the wall on which the lighting fixture 10 is installed, as well as the floor of the landing, which has the effect of brightening the area around the feet on the landing.

[0058] Furthermore, under normal conditions, the sensor control unit 17 monitors whether or not a person is detected by the motion sensor 16, and controls the power supply unit 15 in response to the detection of a person, automatically controlling the brightness of the light source unit 12. When the motion sensor 16 does not detect a person, the sensor control unit 17 saves energy by turning off the light source unit 12 or dimming it to a low level of light output. On the other hand, when the motion sensor 16 detects a person, the sensor control unit 17 turns on the light source unit 12 or dims it to a high level of light output.

[0059] Furthermore, under normal conditions, the emergency lighting unit 18 detects the supply of an external power source and charges the battery 19 using this external power source. At this time, the emergency light source 56 is turned off.

[0060] Furthermore, in the event of a power outage that interrupts the supply of external power to the lighting fixture 10, the emergency lighting unit 18 detects the power outage and converts the power from the battery 19 into a predetermined lighting power source, supplying it to the emergency light source 56. As a result, in the event of a power outage, the light source unit 12 turns off, but the emergency light source 56 lights up, illuminating the stairs and landings.

[0061] When the lighting fixture 10 is mounted on a wall, the emergency light source 56 is positioned on the lower side of the fixture body 23 and is tilted diagonally downwards. As a result, light is shone onto the lower side of the wall where the lighting fixture 10 is installed, as well as the floor of the landing, which brightens the area around the feet on the stairs and landings.

[0062] Furthermore, when the lighting fixture 10 is mounted on a wall, the lens 62 of the emergency light source 56 creates a light distribution with a peak in the forward direction, which has the effect of illuminating the area on the staircase side, which is far from the lighting fixture 10. Also, when the lighting fixture 10 is mounted on a ceiling, the lens 62 of the emergency light source 56 creates a light distribution with a peak in the downward direction, which has the effect of illuminating the area near the feet of the stairs and landings.

[0063] Furthermore, a tapered section 70 that expands forward is provided at the edge of the opening 69 of the front frame 57 where the lens 62 of the emergency light source 56 is located, in an area where there is no partition wall 68, so that the light from the lens 62 is illuminated over a wide area. For example, when the lighting fixture 10 is mounted on a wall, the light is illuminated towards the wall rather than directly downwards, resulting in the effect of brightening the wall. Also, when the lighting fixture 10 is mounted on a ceiling, the light is illuminated upwards rather than horizontally, resulting in the effect of brightening the stairs.

[0064] Furthermore, since the emergency light sources 56 are located at two points on both ends of the fixture body 23, the staircase side connecting the landing to the upper floor and the staircase side connecting the landing to the lower floor can be appropriately illuminated.

[0065] Furthermore, the lighting fixture 10 is periodically checked to ensure that the emergency light source 56 operates correctly using the power of the battery 19. During the inspection of the lighting fixture 10, the worker operates a terminal below the lighting fixture 10 being inspected and sends an inspection signal to the inspection unit 79 of the lighting fixture 10. When the emergency lighting unit 18 receives the inspection signal from the terminal to the inspection unit 79, it enters inspection mode and either lights up the emergency light source 56 using the power of the battery 19 or determines the battery 19's lifespan. The inspection operation and inspection results are displayed on the monitor lamp of the inspection unit 79. After the inspection is complete, the inspection unit 79 sends an inspection result signal to the terminal. The worker then visually confirms the lighting status of the emergency light source 56 and the monitor lamp, and also checks the inspection results received on the terminal to understand the status of the lighting fixture 10.

[0066] If the inspection reveals that battery 19 has reached the end of its lifespan or is otherwise faulty, battery 19 will be replaced. When replacing the battery 19, first remove the cover 24 from the main body 23 and open the front opening 31 of the main body 23 to expose the battery 19 and mounting bracket 87. Next, remove the screw 92 that secures the mounting bracket 87 to the main body 23, rotate the mounting bracket 87 using the locking piece 91 as a pivot point to release it, and remove the battery 19 from inside the mounting bracket 87. Then, place the new battery 19 inside the mounting bracket 87, rotate the mounting bracket 87 toward the rear part 27 of the main body 23 using the locking piece 91 as a pivot point, and attach the mounting bracket 87 to the main body 23 with the screw 92. At this time, since the mounting bracket 87 is rotatably connected to the main body 23 using the locking piece 91 as a pivot point, the battery 19 can be replaced by simply attaching and detaching one screw 92 to the main body 23, making the replacement work easy.

[0067] Furthermore, with the lighting fixture 10 configured in this way, the fixture body 23 can be installed on the mounting surface with the light source unit 12 attached, eliminating the need to remove the light source unit 12 during installation and improving ease of installation.

[0068] With the light source unit 12 attached, the fixture body 23 has a space between it and the light source unit 12 that allows for installation of the mounting portion 33 from the outside. Therefore, the fixture body 23 can be installed on the mounting surface with the light source unit 12 attached.

[0069] The fixture body 23 has a mounting portion 33 for mounting to the installation surface at a position where the cover 24 is removed and exposed with the light source unit 12 attached to the fixture body 23. Therefore, the fixture body 23 can be installed on the installation surface with the light source unit 12 attached.

[0070] The light source unit 12 is mounted on a pair of mounting bases 36 so as to be spaced apart from the back of the fixture body 23. Since the space formed on the back side of the light source unit 12 is in communication with the space formed between the back of the fixture body 23 and the cover 24, the back side of the light source unit 12 can be used as a wiring space 38.

[0071] The battery 19 is positioned in the fixture body 23 in a location where it is exposed when the cover 24 is removed while the light source unit 12 is attached to the fixture body 23, thus eliminating the need to remove the light source unit 12 when replacing the battery 19 and improving the ease of replacing the battery 19.

[0072] Furthermore, the support member 81 supports the emergency lighting unit 18 so as to form three wiring areas 84 between the emergency lighting unit 18 and the housing 11. This allows for easy alignment of the internal wiring, which consists of electric wires routed within the housing 11, by utilizing the three wiring areas 84. Moreover, because the emergency lighting unit 18 acts as a partition, it prevents electric wires routed near the emergency lighting unit 18 from coming into contact with each other.

[0073] If the housing 11 has a first surface portion 11a and a second surface portion 11b that protrudes from the first surface portion 11a, then three wiring regions 84 can be formed: a first wiring region 84a between the emergency lighting unit 18 and the first surface portion 11a of the housing 11, a second wiring region 84b between the emergency lighting unit 18 and the second surface portion 11b of the housing 11, and a third wiring region 84c surrounded by the emergency lighting unit 18 and the first surface portion 11a and the second surface portion 11b of the housing 11.

[0074] When the emergency lighting unit 18 is positioned between the terminal block 14 and power supply unit 15, which are the first electrical unit E1, and the sensor control unit 17, which are the second electrical unit E2, the three wiring areas 84 formed by the emergency lighting unit 18 can be wired separately so that the power line AC and the signal line S, which are among the internal wirings that are wired between the first electrical unit E1 and the second electrical unit E2, do not come into contact with each other, thereby preventing noise and other effects from occurring due to contact between the power line AC and the signal line S.

[0075] Since the emergency lighting unit 18 is supported at an angle to the first surface 11a of the housing 11 by the support member 81, the inspection section 79 can be directed diagonally forward, making inspection operations and inspection verification easy.

[0076] Furthermore, the device that supports the support member 81 so that three wiring regions 84 are formed is not limited to the emergency lighting unit 18, but may also be other devices such as a motion sensor 16.

[0077] Furthermore, since the emergency lighting unit 13 has a partition wall 68 positioned between the light source unit 12 and the emergency light source 56, even if the light-transmitting cover 49 of the light source unit 12 catches fire during an emergency, the partition walls 68 protect the emergency light source 56, ensuring that the emergency light source 56 operates reliably.

[0078] Because a flat portion 72 lower than the tip of the emergency light source 56 is formed between the emergency light source 56 and the end of the fixture body 23, there is no light-blocking object between the emergency light source 56 and the end of the fixture body 23, allowing light from the emergency light source 56 to be directed toward the end of the fixture body 23, and the lateral area of ​​the lighting fixture 10 can also be brightened.

[0079] Since a tapered portion 70 that expands forward is provided at the edge of the opening 69 of the front frame 57 where the lens 62 of the emergency light source 56 is located, in an area where there is no partition wall 68, the light from the lens 62 can be illuminated over a wide area. For example, when the lighting fixture 10 is mounted on a wall, the light is illuminated towards the wall rather than directly downwards, resulting in the effect of brightening the wall. Also, when the lighting fixture 10 is mounted on a ceiling, the light is illuminated upwards rather than horizontally, resulting in the effect of brightening the stairs.

[0080] Next, Figures 13 and 14 show a second embodiment.

[0081] The second embodiment shares some components with the first embodiment, but shortens the longitudinal length of the lighting fixture 10, that is, the length of the housing 11 and the light source unit 12.

[0082] One of the parts used in common is a pair of mounting bases 36. In this case, one spring retaining bracket 37 is attached to one mounting base 36, but the other spring retaining bracket 37 is not attached to the other mounting base 36, and the other spring retaining bracket 37 is attached to the front frame 57 side of the emergency light unit 13. This means that if the distance between the pair of mounting springs 50 of the light source unit 12 is fixed, the other spring receiving bracket 37 is attached to the front frame 57 side of the emergency light unit 13 instead of the mounting base 36, in accordance with that distance. By configuring it in this way, the pair of mounting bases 36 can be shared.

[0083] The emergency light source 56 may be located in the center of the width direction of the fixture body 23, or it may be placed below the light source unit 12. If the emergency light source 56 is placed close to the below the light source unit 12, a partition wall 68 may be placed between the emergency light source 56 and the light source unit 12.

[0084] Furthermore, the fixture body 23 may be configured to be installable on the mounting surface even with the cover 24 attached. That is, the fixture body 23 may have a space between it and the cover 24 that allows for installation to the mounting portion 33 from the outside, even with the cover 24 attached. The fixture body 23 may also have a mounting portion 33 for mounting to the mounting surface at a position where the light source unit 12 is exposed when the cover 24 is attached to the fixture body 23. Thus, the fixture body 23 can be installed on the mounting surface with the cover 24 attached.

[0085] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of symbols]

[0086] 10 Lighting fixtures 12 Light source units 19 batteries 23. Main body of the device 24 Cover 33 Mounting part 36 Mounting base 56 Emergency light source

Claims

1. A long, rectangular instrument body having a back section; A cover is attached to the front side of the device body, which is one end in the shorter direction and spaced apart from the rear portion, and has an inclined surface that slopes toward the rear portion on the other end in the shorter direction; A long light source unit is detachably attached along the inclined surface to the front side, which is spaced apart from the rear side, on the other end of the main body of the fixture in the shorter direction; A lighting fixture characterized by having the following features.

2. Emergency light sources located at both ends in the longitudinal direction of the light source unit and mounted along the inclined surface. A lighting fixture according to claim 1, characterized by comprising the following:

3. A lighting unit having a receiving unit that receives signals transmitted from an external terminal and an inspection switch, and mounted along the inclined surface. The lighting fixture according to claim 2, characterized by comprising the above.

4. Sensor mounted along the aforementioned inclined surface A lighting fixture according to any one of claims 1 to 3, characterized by comprising the above.

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