Lighting fixture

Abstract

To improve workability in construction work.SOLUTION: A lighting fixture A1 includes: a long fixture body 1; a light source unit 2 performing normal lighting; and an emergency light source unit 3 having an emergency light source block 4 including an emergency light source. The fixture body 1 includes: a body 10 formed into a long plate state and attached to a building member (hanging bolt 90); and a pair of side wall parts 11 opposing in the short direction of the body 10. The body 10 includes: a power supply hole 103 inserting a power source cable 91; and an insertion hole 102 into which the hanging bolt 90 is inserted. The power supply hole 103 is formed at the center of the longitudinal direction of the body 10. The insertion hole 102 is formed at a position close to the end in the longitudinal direction of the body part 10. The emergency light source block 4 is disposed at a position not overlapping with the insertion hole 102 in the thickness direction of the body 10.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to lighting fixtures, and more particularly to lighting fixtures that provide both service and emergency lighting. [Background technology]

[0002] The lighting device described in Patent Document 1 is taken as an example of a conventional lighting device. The lighting device described in Patent Document 1 (hereinafter referred to as the conventional example) comprises a first lighting device having an emergency light source, two second lighting devices having normal light sources, and a housing to which the first lighting device and the two second lighting devices are attached. The housing has a reflector and is attached so as to be embedded in an opening provided in a ceiling or the like. The first lighting device is disposed approximately in the center of the long housing. The two second lighting devices are disposed at both ends of the housing in the longitudinal direction, sandwiching the first lighting device therebetween.

[0003] The first lighting fixture has a battery that supplies lighting power in an emergency. A space for accommodating the battery is formed inside the first lighting fixture. When one of the two second lighting fixtures is removed, the space exposes an opening through which the battery can be attached and detached. A lid member is attached to the opening in a removable manner. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2020-173924 Summary of the Invention [Problem to be solved by the invention]

[0005] An object of the present disclosure is to provide a lighting fixture that can improve the workability of installation work. [Means for solving the problem]

[0006] A lighting fixture according to one aspect of the present disclosure includes a long fixture body, a first unit for providing normal illumination, and a second unit having a light source block including an emergency light source. The fixture body has a long, plate-shaped main body attached to a construction member and a pair of side walls facing each other in the short direction of the main body, and is configured to accommodate a portion of the first unit and a portion of the second unit in a storage recess surrounded by the main body and the pair of side walls. The main body has a power supply hole through which a power cable connected to a normal power source is inserted, and an insertion hole through which a hanging bolt, which is the construction member, is inserted. The power supply hole is located in the center of the main body in the longitudinal direction. The insertion hole is located near one end of the main body in the longitudinal direction. The light source block is located at a position that does not overlap with the insertion hole in the thickness direction of the main body. [Effects of the Invention]

[0007] The lighting fixture of the present disclosure has the effect of improving the workability of installation work. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a bottom perspective view of a lighting fixture according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is an exploded perspective view of the lighting fixture. [Figure 3] FIG. 3 is a right side view of the lighting fixture. [Figure 4] FIG. 4 is a left side view of the lighting fixture. [Figure 5] FIG. 5 is an exploded perspective view of the emergency light source block and the battery block in the lighting fixture of the same when assembled. [Figure 6] FIG. 6 is a perspective view of the lighting fixture with the light source unit, battery block, and cover removed. [Figure 7] FIG. 7 is a top view of the support member in the lighting fixture. [Figure 8] FIG. 8 is a bottom view of the support member in the lighting fixture. [Figure 9]FIG. 9 is a front view of the support member in the lighting fixture. [Figure 10] FIG. 10 is a rear view of the support member in the lighting fixture. [Figure 11] FIG. 11 is a left side view of the support member in the lighting fixture. [Figure 12] FIG. 12 is a right side view of the support member in the lighting fixture. [Figure 13] FIG. 13 is a perspective view of the main part of the lighting fixture as viewed obliquely from above. [Figure 14] FIG. 14 is a front view of the emergency light source unit and the support member in the lighting fixture of the same as above, with the battery block being attached thereto. [Figure 15] FIG. 15 is a front view of the emergency light source unit and the support member in the lighting fixture of the same as above with the battery block attached. [Figure 16] FIG. 16 is a bottom view of the main part of the lighting fixture with the battery block and the light source unit removed. [Figure 17] FIG. 17 is a bottom view of the main part of the lighting fixture of the same as above, with the light source unit removed and the battery block attached. [Figure 18] FIG. 18 is a bottom view of the main part of the lighting fixture with the light source unit removed. [Figure 19] FIG. 19 is a bottom view of the first modification of the lighting fixture. [Figure 20] FIG. 20 is a left side view of the second modification of the lighting fixture of the same as above, with some parts omitted. [Figure 21] FIG. 21 is a left side view of the third modification of the lighting fixture of the same as above, with some parts omitted. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, lighting devices according to embodiments of the present disclosure will be described in detail with reference to the drawings. However, the drawings described in the following embodiments are schematic diagrams, and the ratios of the sizes and thicknesses of the components do not necessarily reflect the actual dimensional ratios. Note that the configurations described in the following embodiments are merely examples of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0010] (1) Overview of the lighting fixture according to the embodiment The lighting fixture A1 according to the embodiment includes a long fixture body 1, a light source unit 2 for providing normal lighting, an emergency light source unit 3 for providing emergency lighting, and a support member 6 for supporting the emergency light source unit 3.

[0011] The fixture body 1 has a main body 10 formed in the shape of a long plate and attached to a construction member (hanging bolt 90), and a pair of side walls 11 that face each other in the short direction of the main body 10. The fixture body 1 is configured to accommodate a part of the light source unit 2, a part of the emergency light source unit 3, and the support member 6 in an accommodating recess 12 surrounded by the main body 10 and the pair of side walls 11.

[0012] The emergency light source unit 3 has a battery block 5 and an emergency light source block 4 that is turned on by power discharged from the battery block 5. The support member 6 has a fixing portion 7 that is fixed to the fixture body 1, a mounting plate 80 to which the emergency light source block 4 is attached, a support plate 81 that detachably supports the battery block 5, and an opening 82 that is arranged between the mounting plate 80 and the support plate 81.

[0013] The opening 82 is closed by the battery block 5 when the battery block 5 is supported by the support plate 81. The opening 82 is open when the battery block 5 is not supported by the support plate 81.

[0014] Therefore, in the lighting device A1 according to this embodiment, the opening 82 is present in the portion of the support member 6 that faces the battery block 5, and therefore, heat dissipation from the battery block 5 during charging can be improved.

[0015] (2) Details of the lighting fixture according to the embodiment 1 and 2, a lighting fixture A1 according to this embodiment (hereinafter simply referred to as lighting fixture A1) includes a fixture body 1, a light source unit 2, an emergency light source unit 3, and a support member 6. In the following description, unless otherwise specified, the up-down, front-back, and left-right directions indicated by arrows in FIG. 1 are defined as the up-down, front-back, and left-right directions of the lighting fixture A1.

[0016] (2-1) Light source unit The light source unit 2 includes a service light source, a mounting member 21 to which the service light source is attached, a light-transmitting cover 20 that covers the service light source, and a power supply device 22 that turns on the service light source (see FIGS. 1 to 3).

[0017] The regular light source has a long board and a number of LEDs (light emitting diodes) mounted on the surface of the board. The mounting member 21 is made of a metal material and has a long, gutter-like shape. The mounting member 21 has a long, rectangular bottom plate and a pair of side plates 210 rising upward from both ends of the bottom plate in the short direction (front-to-back direction) (see FIG. 2). The regular light source is attached to the underside of the bottom plate of the mounting member 21. The mounting member 21 also has a pair of hooks 211 (see FIG. 2) protruding from one end (rear end) in the width direction at positions near both ends in the longitudinal direction (left-right direction), and a hook spring 212 (see FIG. 3) arranged at the other end (front end) in the width direction.

[0018] The power supply device 22 is configured to convert AC power supplied from a utility power source (for example, a commercial power system) via a terminal block 23 (see FIGS. 2 and 3) into DC power. The power supply device 22 is attached to the upper surface of the bottom plate of the mounting member 21. The utility light source and the power supply device 22 are electrically connected, for example, by an electric wire inserted into an insertion hole provided in the bottom plate. The utility light source is turned on by receiving DC power from the power supply device 22 via the electric wire.

[0019] The light-transmitting cover 20 is formed in the shape of a long box with an open top and is made of a light-transmitting synthetic resin material such as acrylic resin or polycarbonate resin. The bottom surface of the light-transmitting cover 20 is formed in a curved shape that protrudes gently downward from both ends toward the center in the short side direction (front-to-back direction) (see FIG. 1). Note that a diffusing material is mixed into the synthetic resin material forming the light-transmitting cover 20. That is, light emitted from the regular light source is diffused as it passes through the light-transmitting cover 20.

[0020] The light source unit 2 is detachably attached to the fixture body 1 by accommodating the light-transmitting cover 20 (such as the pair of side panels 210 of the mounting member 21 and the power supply unit 22) in the accommodating recess 12 of the fixture body 1, and allowing the light-transmitting cover 20 to protrude from the opening of the accommodating recess 12 of the fixture body 1.

[0021] (2-2) Emergency light source unit The emergency light source unit 3 has an emergency light source block 4, a battery block 5, and a cover 30 (see FIGS. 2 and 5).

[0022] The emergency light source block 4 has an emergency light source made of an LED, a lens 40 that controls the light distribution of the emergency light source, and a lighting circuit that lights the emergency light source with power supplied from the battery block 5. The emergency light source block 4 also has a charging circuit that charges the battery block 5 with AC power supplied from the normal power source, a control circuit that controls and inspects the lighting circuit and charging circuit, and a housing 41 that houses the lighting circuit, charging circuit, and control circuit. The emergency light source block 4 also has a heat sink 42, a receptacle connector 43 for connecting the lighting circuit, charging circuit, and control circuit to the battery block 5, and electric wires 44 (see Figure 6) that are connected to the normal power source via the terminal block 23.

[0023] The housing 41 is made of synthetic resin and has a box shape. The heat sink 42 is made of a metal plate such as an aluminum plate and has a C-shape. The heat sink 42 is attached to the housing 41 so as to cover the bottom surface, both front and rear side surfaces of the housing 41, and part of the top surface of the housing 41. The emergency light source and lens 40 are attached to the bottom surface of the heat sink 42 (see FIG. 6).

[0024] Receptacle connector 43 is disposed on the bottom surface of recess 410 provided in the right front corner of the front surface of housing 41 (see FIG. 6). Recess 410 is recessed upward from the bottom surface of housing 41. In addition, a vertical groove 411 connected to recess 410 is provided at the right end of the front surface of housing 41 (see FIG. 5).

[0025] The battery block 5 has a plurality of batteries (for example, five batteries) and a battery case 50 that houses the plurality of batteries. Each battery is, for example, a dry cell type secondary battery (storage battery) such as a nickel-metal hydride battery.

[0026] The battery case 50 has a first case portion 51, a second case portion 52, a protrusion 53, a connector portion 54, a protrusion piece 55, etc. (See Figures 2 and 5). The first case portion 51 is formed in a rectangular parallelepiped shape with its height in the up-down direction shorter than its length in the front-to-back and left-to-right directions. Four batteries are housed inside the first case portion 51. The second case portion 52 protrudes downward from the left end of the underside of the first case portion 51. The interior of the second case portion 52 is connected to the interior of the first case portion 51. The remaining one battery is housed inside the second case portion 52. These five batteries are electrically connected in series by multiple conductor plates.

[0027] The protrusion 53 is formed in a rectangular parallelepiped shape and protrudes rightward from the rear end of the right side surface of the first case part 51 (see FIG. 2). The length of the protrusion 53 in the front-rear direction is shorter than the length of the first case part 51 in the front-rear direction.

[0028] The connector section 54 is provided at the front end of the left end of the second case section 52. A pair of contacts connected in series to five batteries is built into the connector section 54. The connector section 54 is removably connected to the receptacle connector 43 of the emergency light source block 4.

[0029] The protruding piece 55 is formed in an L-shape when viewed from the left and right direction. The protruding piece 55 is formed so as to protrude upward from the left side surface of the connector portion 54 (see FIG. 5).

[0030] The cover 30 has a first cover 31 and a second cover 32 (see FIG. 2). The first cover 31 and the second cover 32 are integrally formed from a metal such as aluminum.

[0031] The first cover 31 is formed in a box shape with an open top surface. The bottom surface of the first cover 31 is formed in a curved shape that protrudes gently downward from both ends toward the center in the short side direction (front-to-back direction), similar to the light-transmitting cover 20 of the light source unit 2. An oval recess 310 is provided in the center of the bottom surface of the first cover 31, and a hole 311 opens in the center of the recess 310. The hole 311 is formed in a shape and size that allows part of the lens 40 of the emergency light source block 4 to be inserted therethrough (see FIG. 1).

[0032] The first cover 31 has two hook springs 312 at the left end on its top surface (see FIG. 4). The hook springs 312 are formed in an L shape when viewed from the front-to-rear direction. The hook springs 312 are configured to incline upward as they approach their tip (left end).

[0033] As shown in FIG. 2, the second cover 32 has a flat portion 320, an arm portion 321, and a fixing portion 322. The flat portion 320 is formed in a roughly rectangular flat plate shape. The left end of the flat portion 320 is connected to the first cover 31. The arm portion 321 is formed in a roughly rectangular flat plate shape. The arm portion 321 is configured to rise upward from the front end at the right end of the flat portion 320. The fixing portion 322 is formed in a roughly rectangular flat plate shape. The fixing portion 322 is configured to protrude to the right from the upper end of the arm portion 321. In addition, the fixing portion 322 has a circular insertion hole in its right corner near the front.

[0034] The cover 30 is configured so that the first cover 31 covers the emergency light source block 4 and a part (second case portion 52) of the battery block 5 from below, and the second cover 32 covers the entire remaining battery block 5 (first case portion 51) from below. The lens 40 of the emergency light source block 4 protrudes below the first cover 31 through a hole 311 in the first cover 31 (see FIG. 18).

[0035] (2-3) Device body The fixture body 1 has a main body 10 formed in the shape of a long plate and attached to a construction member (hanging bolt 90), and a pair of side walls 11 facing each other in the short direction of the main body 10 (see FIGS. 1 and 2). The fixture body 1 also has a pair of reflecting plates 13, a pair of end plates 14, and a frame portion 15.

[0036] The main body 10 has a base plate 100 formed in a long rectangular shape and a pair of side plates 101 bent downward from both ends (front end and rear end) of the base plate 100 along the longitudinal direction (see Figure 3).

[0037] The base plate 100 has two insertion holes 102 and one power supply hole 103. The two insertion holes 102 are circular holes provided at positions near both ends in the longitudinal direction (left-right direction) of the base plate 100. A hanging bolt 90, which is a construction member, is inserted into each insertion hole 102 (see FIG. 2).

[0038] The power supply hole 103 is a circular hole provided in the longitudinal center of the base plate 100. A power cable 91 connected to a utility power source is pulled into the power supply hole 103 (see FIG. 3). The power supply cable 91 is, for example, a three-core VVF (vinyl insulated vinyl sheath flat) cable.

[0039] Two terminal blocks 23 are attached to the underside of the base plate 100 between the power supply hole 103 and the right-side insertion hole 102 (see FIGS. 2 and 3). A power cable 91 and a relay cable are connected to one of the terminal blocks 23. The power supply device 22 is connected to the power cable 91 via the relay cable and the terminal block 23. An electric wire 44 of the emergency light source block 4 is connected to the other terminal block 23. The power cable 91 for the feed wiring, which will be described later, is also connected to these terminal blocks 23.

[0040] A U-shaped support portion 104 is integrally provided at the lower end of each of the pair of side plates 101 (see FIG. 3). Each of the pair of side plates 101 is also bent in a stepped shape along the longitudinal direction (left-right direction).

[0041] Each of the pair of side walls 11 is formed integrally with the reflector 13. Each reflector 13 is formed in the shape of a long rectangular plate with one surface (lower surface) serving as a reflective surface. Each side wall 11 is formed in the shape of a long rectangular plate and is formed integrally with the reflector 13 so as to rise from one edge (upper edge) along the longitudinal direction (left-right direction) of the reflector 13. A protruding wall 110 is provided at the upper end of each side wall 11. The protruding wall 110 is formed in the shape of a long rectangular plate and protrudes from the tip edge (upper edge) along the longitudinal direction of the side wall 11 in a direction facing the reflector 13 (see FIG. 3). The tip of the protruding wall 110 is bent downward along the longitudinal direction into a hook shape.

[0042] Each of the pair of end plates 14 is formed in a trapezoidal shape (see FIG. 3), and each of the pair of end plates 14 is joined to both longitudinal ends of the pair of reflecting plates 13 by an appropriate method such as spot welding.

[0043] The frame portion 15 is formed in a rectangular frame shape when viewed from above and below. However, it is preferable that the frame portion 15 is formed integrally with the pair of reflecting plates 13 and the pair of end plates 14.

[0044] When the pair of reflecting plates 13 are joined to the integral end plate 14, the pair of side wall portions 11 face each other at a predetermined distance in the short side direction (front-rear direction) of the reflecting plate 13 (see FIG. 3).

[0045] The main body 10 and the pair of side walls 11 are joined together as follows. First, the pair of protruding walls 110 are inserted into the pair of support portions 104 from one longitudinal end of the main body 10. Then, the main body 10 is moved parallel to the pair of side walls 11 along the longitudinal direction of the side walls 11. Here, raised pieces are provided on both longitudinal ends of each side wall 11. Meanwhile, notches are provided at the tip of each protruding wall 110. Then, the raised pieces of each side wall 11 are crimped into the notches of each protruding wall 110, thereby joining the main body 10 and the pair of side walls 11 together via the pair of protruding walls 110.

[0046] By joining the main body 10 and the pair of side walls 11, a storage recess 12 is formed that is surrounded by the main body 10 and the pair of side walls 11 (see Figs. 2 to 4 and 6). However, the storage recess 12 is open at both ends (left and right ends) in the longitudinal direction of the instrument main body 1.

[0047] (2-4) Support member Next, the support member 6 will be described with reference to FIGS.

[0048] The support member 6 has a fixing portion 7 that is fixed to the fixture body 1, and an attachment portion 8 to which the emergency light source unit 3 is attached.

[0049] The mounting portion 8 has a mounting plate 80 to which the emergency light source block 4 is attached, a support plate 81 that detachably supports the battery block 5, and an opening 82 arranged between the mounting plate 80 and the support plate 81 (see Figures 7 and 8).

[0050] The mounting plate 80 is formed in the shape of a rectangular flat plate (see FIGS. 7 and 8). A rectangular vertical piece 800 is integrally provided on the mounting plate 80 (see FIGS. 8 to 11). The vertical piece 800 protrudes downward from the left end of the mounting plate 80 (see FIG. 9). One circular hole 801 penetrates each of the front end and rear end in the center of the left-right direction of the mounting plate 80 (see FIGS. 7 and 8). One screw is inserted into each of these two holes 801. The emergency light source block 4 is attached to the underside of the mounting plate 80 by screwing each screw into a screw hole provided in the heat sink 42 (see FIG. 14). The emergency light source block 4 is attached to the mounting plate 80 in a state where it slightly protrudes from the end (right end) of the mounting plate 80 opposite the vertical piece 800 (see FIG. 14).

[0051] The support plate 81 is formed in the shape of a flat plate with an L-shaped outline when viewed from the top and bottom (see FIGS. 7 and 8). A hook portion 810 is provided at the tip (rear end) of the narrower part of the support plate 81 in the left-right direction (see FIGS. 8 to 10 and 12). The hook portion 810 has a main piece 8100, a first hook piece 8101, and a second hook piece 8102. The main piece 8100, the first hook piece 8101, and the second hook piece 8102 are each formed in the shape of a rectangular flat plate (see FIGS. 8, 9, and 12). The main piece 8100 protrudes downward from the tip (rear end) of the support plate 81 (see FIGS. 9 and 10). The first hook piece 8101 protrudes leftward from the tip (lower end) of the main piece 8100 and faces the support plate 81 in the vertical direction (see Figs. 9 and 10). The second hook piece 8102 protrudes leftward from the front edge of the first hook piece 8101 (see Figs. 8 to 10). A female screw portion 811 is provided at the tip (right end) of the part of the support plate 81 that is wider in the left-right direction (see Figs. 7 and 8).

[0052] The opening 82 has a rectangular shape when viewed from above and below, and is disposed between the mounting plate 80 and the support plate 81 (see FIGS. 7 and 8). The width of the opening 82 along the short side direction (front-rear direction) of the device body 1 is approximately equal to the distance between the pair of side wall portions 11. However, the shape of the opening 82 is not limited to a rectangle, and may be, for example, a polygon with pentagons or more sides, a circle, an ellipse, or the like. The end of the support plate 81 that faces the opening 82 (the left end) is folded upward (see FIGS. 7 and 13).

[0053] The battery block 5 is supported on the support plate 81 of the support member 6 in the following procedure. First, with the battery block 5 tilted relative to the support plate 81, the protrusion 53 on the battery case 50 of the battery block 5 is hooked onto the hook portion 810 on the support plate 81 of the support member 6 (see FIG. 14).

[0054] Next, the battery block 5 is rotated around the protrusion 53 hooked on the hook portion 810 as a fulcrum (see FIG. 5). Then, the protrusion 55 of the battery block 5 is inserted into the vertical groove 411 provided in the housing 41 of the emergency light source block 4, and the connector portion 54 of the battery block 5 is connected to the receptacle connector 43 (see FIG. 15). In this way, the battery block 5 is supported by the support plate 81 of the support member 6, and the connector portion 54 is connected to the receptacle connector 43 (see FIG. 15). Note that when the battery block 5 is supported by the support plate 81, the opening 82 of the support member 6 is blocked by the battery block 5 (FIG. 17).

[0055] The fixing portion 7 has a pair of side plates 70 and a pair of fixing pieces 71 (see FIGS. 7 to 10). Each of the pair of side plates 70 is formed in a rectangular flat plate shape. One of the side plates 70 protrudes upward from the front end of the mounting portion 8 (mounting plate 80 and support plate 81) (see FIG. 9). The other side plate 70 protrudes upward from the rear end of the mounting portion 8 (mounting plate 80 and support plate 81) (see FIG. 10).

[0056] Each of the fixing pieces 71 is formed in the shape of a rectangular flat plate (see FIG. 7). One of the fixing pieces 71 protrudes forward from the upper end of the front side plate 70. The other fixing piece 71 protrudes rearward from the upper end of the rear side plate 70. A circular hole 710 is provided at one longitudinal end (left end) of each of the pair of fixing pieces 71 (see FIG. 7).

[0057] Each of the fixing pieces 71 has a locking piece 72 at each of its longitudinal ends (left and right ends) (see FIGS. 9 and 10). These four locking pieces 72 are hook-shaped and protrude downward from the longitudinal (left-right) edges of the fixing pieces 71.

[0058] The fixing portion 7 of the support member 6 is fixed to a pair of side wall portions 11 of the instrument body 1. Specifically, a pair of fixing pieces 71 of the fixing portion 7 are fixed to the protruding wall portions 110 of the pair of side wall portions 11 of the instrument body 1, one by one.

[0059] A pair of locking pieces 72 provided on each fixing piece 71 are locked onto the edges of a pair of holes 111 provided at the left end of the protruding wall portion 110, one by one. In this state, a screw 74 inserted into a hole 710 of the fixing piece 71 is screwed into a threaded hole provided in the protruding wall portion 110, thereby fixing the fixing piece 71 to the protruding wall portion 110 (see FIG. 13). The hole 710 through which the screw 74 is inserted is provided at a position where the optical axis L1 of the lens 40 and the screw 74 overlap when viewed from the short side direction (front-rear direction) of the fixing piece 71 (see FIG. 15).

[0060] Here, when the support member 6 is fixed to the fixture body 1 (the pair of side wall portions 11), the opening 82 of the support member 6 overlaps in the vertical direction with the insertion hole 102 located at the left end of the main body 10 of the fixture body 1 (see FIG. 15). The opening 82 is formed to have a size that allows the operation of tightening a nut 92 onto the hanging bolt 90 inserted through the insertion hole 102.

[0061] Thus, the support member 6 is accommodated in the accommodation recess 12 so as to form a predetermined space (wiring space S1) between the main body 10 and the mounting portion 8 (see FIG. 4). The wiring space S1 is preferably large enough to accommodate at least two power cables 91.

[0062] (3) Installation procedure for lighting fixtures according to the embodiment Next, the installation procedure for lighting fixture A1 will be described.

[0063] First, the worker performing the installation work removes the light source unit 2, the battery block 5, and the cover 30 from the lighting fixture A1. Then, the worker inserts the power cable 91, which is previously wired in the ceiling, into the power supply hole 103 of the main body 10, and then inserts the fixture main body 1 into the recessed hole X10 provided in the ceiling X1. At this time, the worker inserts two suspension bolts 90 arranged in the recessed hole X10 into two insertion holes 102 provided in the main body 10, one each (see FIG. 2). Then, the worker tightens nuts 92 via washers 93 onto the suspension bolts 90 inserted into the insertion holes 102 (see FIG. 16). At this time, the worker can insert his hand through the opening 82 of the support member 6 of the emergency light source unit 3 to tighten the nuts 92. Note that the end of the support plate 81, which is the end facing the opening 82 (the left end), is folded upward, reducing the possibility of the worker's hand touching the edge of the support plate 81 and getting injured. Similarly, the emergency light source block 4 is attached to the mounting plate 80 in a state where it slightly protrudes from the end (right end) opposite to the vertical piece 800 of the mounting plate 80, so that the possibility of an operator's hand touching the edge of the mounting plate 80 and getting injured is reduced.

[0064] In this way, the fixture body 1 is fixed to the two hanging bolts 90. Note that the frame portion 15 of the fixture body 1 abuts against the periphery of the embedding hole X10 in the ceiling X1, so that the fixture body 1 closes the embedding hole X10.

[0065] Next, the worker connects the power cable 91 pulled in from the power hole 103 to the terminal block 23. Furthermore, the worker connects the power cable 91 for the outgoing wiring to the terminal block 23. The worker stores the two power cables 91 in the wiring space S1 of the accommodating recess 12 of the fixture body 1 (see Figures 3 and 4), and pulls the power cable 91 for the outgoing wiring out of the fixture body 1 from one longitudinal end of the accommodating recess 12, and stores it in the accommodating recess 12 of the fixture body 1 of another lighting fixture A1.

[0066] Next, the worker supports the battery block 5 on the support plate 81 of the support member 6 using the procedure explained in "(2-4) Support member" (see Figures 14 and 15). Then, the worker attaches the cover 30 to the fixture body 1. The worker inserts the pair of hook springs 312 of the first cover 31 into the gap between the upper end of the left end plate 14 and the left end of the emergency light source block 4. The pair of hook springs 312 are hooked onto protruding pieces that protrude to the right from the upper end of the left end plate 14 of the fixture body 1 (see Figure 4).

[0067] Next, the worker places the fixing portion 322 of the second cover 32 over the female thread portion 811 of the support plate 81 from below. Then, the worker attaches the cover 30 to the device main body 1 and the support member 6 by screwing the screw 323 inserted into the insertion hole of the fixing portion 322 into the female thread portion 811 of the support plate 81. Note that multiple protrusions are formed on the upper surface (the surface facing the battery block 5) of the flat portion 320 of the cover 30. These multiple protrusions abut against the underside of the first case portion 51 of the battery case 50, thereby preventing the cover 30 from rattling the battery block 5.

[0068] Next, the worker attaches the light source unit 2 to the fixture body 1. First, the worker hooks a pair of hooking fittings 211 into square holes 112 (see FIG. 2 ) provided in the rear side wall portion 11 of the fixture body 1, thereby temporarily hanging the light source unit 2 on the fixture body 1. With the light source unit 2 temporarily hung on the fixture body 1, the worker connects the power connector connected to the terminal block 23 to the power supply device 22 of the light source unit 2.

[0069] Next, the worker hooks the hook spring 212 (see FIG. 3) of the light source unit 2 onto the receiving metal fitting 16 (see FIG. 2) provided on the front side wall portion 11 of the fixture body 1. Finally, the worker rotates the light source unit 2 so as to lift it up, using the hook fitting 211 as a fulcrum. Then, the hook spring 212 returns to its original state while still hooked onto the receiving metal fitting 16, and the spring force of the hook spring 212 holds the light source unit 2 to the fixture body 1 (see FIGS. 1 and 3).

[0070] The lighting fixture A1 is installed on the ceiling X1 in the above-described manner.

[0071] (4) Variations Below, several modified examples of the lighting device A1 according to this embodiment will be described. However, since the basic configuration of each of the modified examples described below is the same as the basic configuration of the lighting device A1 according to this embodiment, the common components will be assigned the same reference numerals and will not be illustrated or described again.

[0072] (4-1) Variation 1 As shown in FIG. 19, lighting fixture A1 of Modification 1 differs from the embodiment in that it includes two light source units 2 and an emergency light source unit 3 is disposed between the two light source units 2.

[0073] The two light source units 2 each have a length (longitudinal dimension) that is approximately half that of the light source unit 2 in the lighting fixture A1 according to this embodiment. These two light source units 2 are attached to the fixture body 1 at either end in the longitudinal direction of the fixture body 1.

[0074] The emergency light source unit 3 is disposed between the two light source units 2, i.e., in the longitudinal center of the fixture body 1. In this case, the opening 82 of the support member 6 that supports the emergency light source unit 3 faces the power supply hole 103 provided in the center of the body 10.

[0075] Thus, in lighting fixture A1 of modification 1 as well, power cable 91 can be pulled in from power supply hole 103 through opening 82 of support member 6.

[0076] As described above, the emergency light source unit 3 may be disposed at a position other than the end in the longitudinal direction of the fixture body 1, for example, at the center in the longitudinal direction.

[0077] (4-2) Variation 2 Illumination device A1 of modification 2 is characterized in that fixing portion 7 of support member 6 has only one side plate 70 and one fixing piece 71 (see FIG. 20).

[0078] In lighting fixture A1 of modified example 2, fixing portion 7 has only one side plate 70 and one fixing piece 71, so that support member 6 can be attached to fixture main body 1 simply by fixing fixing piece 71 to protruding wall portion 110 of one side wall portion 11 of fixture main body 1. As a result, lighting fixture A1 of modified example 2 can improve the workability of the assembly work.

[0079] (4-3) Variation 3 The lighting fixture A1 of Modification 3 is characterized by the structure of the fixing portion 7 of the support member 6. The fixing portion 7 of Modification 3 has a pair of side plates 70 and a pair of fixing pieces 71. The pair of side plates 70 protrude downward from the front end and rear end of the mounting portion 8, respectively (see FIG. 21). The pair of fixing pieces 71 protrude outward from the lower ends of the pair of side plates 70, respectively.

[0080] The fixing portion 7 of the support member 6 is fixed to a pair of side walls 11 of the instrument body 1. Specifically, a pair of fixing pieces 71 of the fixing portion 7 are fixed to the pair of side walls 11 of the instrument body 1, one by one, by screws (see FIG. 21). The pair of fixing pieces 71 are engaged with the lower ends of the pair of side walls 11, one by one.

[0081] In lighting fixture A1 of modification 3, fixing portion 7 of support member 6 is disposed below mounting portion 8, thereby enabling wiring space S1 to be further expanded (see FIG. 21).

[0082] (5) Advantages of the lighting fixture according to the embodiment In the lighting fixture A1, the support member 6 has a fixing portion 7 that is fixed to the fixture body 1, a mounting plate 80 to which the emergency light source block 4 is attached, a support plate 81 that detachably supports the battery block 5, and an opening 82 that is disposed between the mounting plate 80 and the support plate 81. The opening 82 is closed by the battery block 5 when the battery block 5 is supported by the support plate 81. The opening 82 is also open when the battery block 5 is not supported by the support plate 81.

[0083] When the utility power source is not interrupted, the battery block 5 is charged by the charging circuit of the emergency light source block 4 using power (utility power) supplied from the utility power source. During charging, heat is emitted from the battery block 5, specifically from the batteries and the conductor plates connecting the batteries. Note that the nickel-metal hydride batteries used in the battery block 5 tend to have a shorter lifespan, particularly when exposed to high temperatures, so it is desirable to suppress the temperature rise of the battery block 5 by radiating the heat generated during charging.

[0084] Thus, because the openings 82 open the support member 6 above the battery block 5, convection occurs through the openings 82 due to the heat radiated from the battery block 5. As a result, lighting device A1 has the advantage of being able to improve the heat dissipation of the battery block 5 compared to when the support member 6 does not have the openings 82.

[0085] Furthermore, in lighting fixture A1, opening 82 is provided in support member 6 so as to overlap at least one of insertion hole 102 and power supply hole 103 in the thickness direction of support plate 81. In other words, the operation of tightening nut 92 onto hanging bolt 90 inserted into insertion hole 102, or the operation of pulling power cable 91 from power supply hole 103, can be performed through opening 82. In particular, opening 82 is formed to a size that allows the above operations to be performed by hand, which has the advantage that lighting fixture A1 can improve the workability of installation work.

[0086] Furthermore, in the lighting fixture A1, the electric wires 44 for connecting the emergency light source block 4 to a utility power source can be placed in the space (wiring space S1) above the battery block 5 in the accommodation recess 12 through the opening 82 in the support member 6 (see FIG. 6). This prevents the electric wires 44 from being pinched between the battery block 5 and the support plate 81 when the battery block 5 is attached to the support plate 81. Moreover, by separating the electric wires 44 from the battery block 5, the lighting fixture A1 can suppress electromagnetic noise induced in the conductive plate of the battery block 5 by the AC current flowing through the electric wires 44. The electric wires 44 are supported by a plurality of cable holders 45 attached to the side wall 11 and the main body 10 (see FIG. 6).

[0087] Incidentally, the main body 10 of the fixture body 1 may bend when the nuts 92 are fastened to the two hanging bolts 90. If the fixing portion 7 of the support member 6 is fixed to the main body 10, the bending of the main body 10 may also affect the support member 6, which may change the light distribution characteristics of the emergency light source unit 3 supported by the support member 6. In contrast, in the lighting fixture A1, the fixing portion 7 of the support member 6 is fixed to a pair of side wall portions 11. More specifically, fixing pieces 71 provided on a pair of side plates 70 of the fixing portion 7 are fixed to a pair of protruding wall portions 110 that protrude outward from the leading edges of the pair of side wall portions 11 along the longitudinal direction (see FIG. 13 ). Therefore, the lighting fixture A1 has the advantage of being able to reduce the effect of the bending of the main body 10 on the support member 6 and suppress changes in the light distribution characteristics of the emergency light source unit 3.

[0088] Here, the protruding wall portions 110 to which the fixing pieces 71 are fixed protrude outward from the longitudinal tip edges of the pair of side wall portions 11, so that when assembling the fixture main body 1, the support member 6 and the main body 10 can be assembled from the same direction relative to the pair of side wall portions 11. Therefore, the lighting fixture A1 can be assembled more easily than when the support member 6 and the main body 10 are assembled from different directions (for example, from above and below) relative to the pair of side wall portions 11.

[0089] Furthermore, since the fixing piece 71 is provided on the side plate 70 that protrudes from the respective edge of the mounting plate 80 and the support plate 81 on the side opposite the emergency light source unit 3, the distance between the mounting plate 80 and the support plate 81 can be increased, thereby further reducing the effect of bending of the main body 10 on the mounting plate 80 of the support member 6.

[0090] Furthermore, the battery case 50 of the battery block 5 of the emergency light source unit 3 has a protrusion 53 that can be hooked onto a hook portion 810 provided on the support plate 81 of the support member 6. That is, in the lighting fixture A1, the battery block 5 can be temporarily supported on the support member 6 by hooking the protrusion 53 of the battery case 50 onto the hook portion 810. That is, in the lighting fixture A1, temporarily supporting the battery block 5 on the support member 6 has the advantage of improving the ease of attaching and removing the cover 30 to and from the fixture body 1 and the support member 6.

[0091] Here, in the fixing portion 7 of the support member 6, the holes 710 formed in each fixing piece 71 are positioned so that the optical axis L1 of the lens 40 and the screw 74 inserted into the hole 710 overlap when viewed from the short side direction (front-to-back direction) of the fixing piece 71 (see FIG. 15 ). Therefore, in the lighting device A1, even if the support member 6 rattles relative to the pair of side wall portions 11, it is possible to prevent the optical axis L1 of the lens 40 from shifting relative to the device body 1.

[0092] Furthermore, in the emergency light source unit 3, the protrusion 53 of the battery case 50 is located at a position that does not overlap with the fixing portion 322 provided on the cover 30 (see FIG. 18). This allows the length of the cover 30 in the longitudinal direction (left-right direction) to be reduced compared to when the protrusion 53 is located at a position that overlaps with the fixing portion 322.

[0093] (6) Summary A lighting fixture (A1) according to a first aspect of the present disclosure includes a long fixture body (1), a light source unit (2) for normal lighting, an emergency light source unit (3) for emergency lighting, and a support member (6) for supporting the emergency light source unit (3). The fixture body (1) has a main body (10) formed in the shape of a long plate and attached to a construction member (hanging bolt 90), and a pair of side walls (11) facing each other in the short direction of the main body (10). The fixture body (1) is configured to accommodate a portion of the light source unit (2), a portion of the emergency light source unit (3), and the support member (6) in an accommodation recess (12) surrounded by the main body (10) and the pair of side walls (11). The emergency light source unit (3) has a battery block (5) and an emergency light source block (4) that is illuminated by power discharged from the battery block (5). The support member (6) has a fixing portion (7) fixed to the fixture body (1), a mounting plate (80) to which the emergency light source block (4) is attached, a support plate (81) that detachably supports the battery block (5), and an opening (82) disposed between the mounting plate (80) and the support plate (81). The opening (82) is closed by the battery block (5) when the battery block (5) is supported on the support plate (81), and is open when the battery block (5) is not supported on the support plate (81).

[0094] In the lighting fixture A1 according to the first embodiment, the support member 6 above the battery block 5 is open by the opening 82, and convection occurs through the opening 82 due to heat radiated from the battery block 5. As a result, the lighting fixture A1 according to the first embodiment can improve the heat dissipation of the battery (battery block 5) compared to when the support member 6 does not have the opening 82.

[0095] A lighting fixture (A1) according to a second aspect of the present disclosure can be realized by combining it with the first aspect. In the lighting fixture (A1) according to the second aspect, the main body (10) preferably has an insertion hole (102) through which a hanging bolt (90), which is a construction member, is inserted, and a power supply hole (103) through which a power cable (91) is pulled in. The opening (82) is preferably provided in the support member (6) so as to overlap with at least one of the insertion hole (102) and the power supply hole (103) in the thickness direction of the support plate (81).

[0096] In the lighting fixture (A1) according to the second aspect, the operation of tightening a nut on the hanging bolt (90) inserted into the insertion hole (102) or the operation of pulling the power cable (91) through the power hole (103) can be performed through the opening (82). As a result, the lighting fixture (A1) according to the second aspect can improve the workability of installation work.

[0097] A lighting fixture (A1) according to a third aspect of the present disclosure can be realized by combining it with the second aspect. In the lighting fixture (A1) according to the third aspect, the opening (82) is preferably sized to allow a person to manually perform at least one of the following operations: tightening the nut (92) onto the hanging bolt (90) inserted into the insertion hole (102) and pulling the power cable (91) through the power hole (103).

[0098] In the lighting fixture (A1) according to the third aspect, the opening (82) is formed to a size that allows the above work to be performed by hand, thereby further improving the workability of the installation work.

[0099] A lighting device (A1) according to a fourth aspect of the present disclosure can be realized by combining it with any of the first to third aspects. In the lighting device (A1) according to the fourth aspect, it is preferable that the fixing portion (7) is fixed to at least one of the pair of side walls (11).

[0100] The lighting fixture (A1) according to the fourth aspect can reduce the influence of bending of the main body (10) on the support member (6).

[0101] A lighting fixture (A1) according to a fifth aspect of the present disclosure can be realized by combining it with the fourth aspect. In the lighting fixture (A1) according to the fifth aspect, the pair of side walls (11) preferably have a pair of protruding walls (110) protruding outward from longitudinal tip edges of the pair of side walls (11). The fixing portion (7) is preferably fixed to the pair of protruding walls (110).

[0102] The lighting fixture (A1) according to the fifth aspect can improve the workability of assembly work compared to assembling the support member (6) and the main body (10) to the pair of side wall portions (11) from different directions (for example, from above and below).

[0103] A lighting fixture (A1) according to a sixth aspect of the present disclosure can be realized by combining it with the fourth or fifth aspect. In the lighting fixture (A1) according to the sixth aspect, the fixing portion (7) preferably has one or more side plates (70) protruding from the respective edges of the mounting plate (80) and the support plate (81) on the side opposite to the emergency light source unit (3), and fixing pieces (71) for fixing the one or more side plates (70) to the side wall portion (11).

[0104] The lighting fixture (A1) according to the sixth aspect can further reduce the influence of bending of the main body (10) on the support member (6).

[0105] A lighting device (A1) according to a seventh aspect of the present disclosure can be realized by combining it with any of the first to sixth aspects. In the lighting device (A1) according to the seventh aspect, the battery block (5) preferably includes a plurality of batteries and a box-shaped battery case (50) that houses the plurality of batteries. The battery case (50) preferably includes a protrusion (53) that can be hooked onto a hook portion (810) provided on the support plate (81).

[0106] In the lighting fixture (A1) of the seventh aspect, the battery block (5) can be easily supported on the support plate (81) of the support member (6) by hooking the protrusion (53) onto the hook portion (810) and rotating the battery case (50).

[0107] A lighting fixture (A1) according to an eighth aspect of the present disclosure can be realized by combining it with the seventh aspect. In the lighting fixture (A1) according to the eighth aspect, it is preferable that the emergency light source unit (3) further includes a cover (30) that is detachably attached to the fixture body (1) and the support member (6) and covers the emergency light source block (4) and the battery block (5). It is preferable that the cover (30) has a fixing portion (322) that is screwed to the support plate (81). It is preferable that the battery case (50) has a protrusion (51) at a position that does not overlap with the fixing portion (322).

[0108] In the lighting fixture (A1) according to the eighth aspect, the length of the cover (30) can be reduced compared to when the protrusion (51) is provided at a position overlapping the fixing portion (322). [Explanation of symbols]

[0109] A1 Lighting fixture 1. Device body 2 Light source unit (first unit) 3 Emergency light source unit (second unit) 4 Emergency Light Block (Light Block) 5 Battery Block 6 Support member 7 Fixed part 8 Mounting part 10 Main Unit 11 Side wall 12 Receiving recess 30 Cover 50 Battery Case 53 Protrusion 70 Side Panel 71 Fixed piece 80 Mounting plate 81 Support plate 82 Opening 90 Hanging bolt 91 Power Cable 92 Nut 102 Insertion hole 103 Power hole 110 Projecting wall 322 Fixed part

Claims

1. A long instrument body, a first unit for providing regular lighting; a second unit having a light source block including an emergency light source; Equipped with The fixture body has a main body formed in a long plate shape and attached to a construction member, and a pair of side wall portions opposed to each other in a short direction of the main body, and is configured to accommodate a part of the first unit and a part of the second unit in an accommodating recess surrounded by the main body and the pair of side wall portions, The main body has a power supply hole through which a power cable connected to a utility power source is inserted, and an insertion hole through which a hanging bolt serving as the construction member is inserted, The power supply hole is provided at the center of the main body in the longitudinal direction, The insertion hole is provided at a position near an end of the main body in the longitudinal direction, the light source block is disposed at a position not overlapping with the insertion hole in the thickness direction of the main body. Lighting fixtures.

2. a support member that supports the second unit; the support member has a fixing portion fixed to the tool body, a mounting plate to which a portion of the second unit is detachably attached, a support plate that supports another portion of the second unit, and an opening disposed between the mounting plate and the support plate, The opening is disposed at a position overlapping the insertion hole in the thickness direction of the main body.

2. The lighting fixture of claim 1.

3. the second unit has a battery block; the opening is closed by the battery block; 3. The lighting fixture according to claim 2.

4. the battery block includes a plurality of batteries and a box-shaped battery case that houses the plurality of batteries; the battery case has a protrusion that can be hooked onto a hook portion provided on the support plate; 4. The lighting fixture according to claim 3.

5. the second unit further includes a cover that is detachably attached to the fixture body and the support member and covers the battery block; the cover has a fixing portion that is screwed to the support plate, the battery case has the protrusion at a position that does not overlap with the fixing portion of the cover; 5. The lighting fixture of claim 4.

6. The opening is formed to a size that allows a person to manually tighten a nut onto the hanging bolt inserted into the insertion hole. A lighting fixture according to any one of claims 2 to 5.

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