JP4626833B2 - Lighting equipment - Google Patents

Description

  The present invention relates to a lighting device having display means.

  Conventionally, as this kind of guide lamp device, for example, a configuration described in Japanese Patent Publication No. 2779091 is known.

  In this Japanese Patent Publication No. 2779091, a fixture body in which a fluorescent lamp is arranged along one side of a light guide plate to form a display panel, and a lighting device for lighting the fluorescent lamp on the back side of the display panel is housed. Is attached.

Then, the fluorescent lamp is turned on by the lighting device, and the light from the fluorescent lamp is irradiated onto the light guide plate, so that the entire light guide plate is irradiated with substantially uniform brightness.
Japanese Patent Publication No. 2779091

  However, in the case of the configuration described in the above-mentioned Japanese Patent Publication No. 2779091, since the instrument body is attached to the back side of the display panel, it is not downsized, and the back side is walled by being embedded or exposed. It can only be attached, it cannot be attached to the ceiling surface, etc., and versatility is low.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide an illumination device and a guide light device that have improved versatility.

  The lighting device according to claim 1 has a quadrangular frame portion with a mounting portion provided on the upper side in the periphery, and a quadrangular opening is formed at least on the front surface of the frame portion, and an electric component storage portion is provided inside. A lighting device comprising: a formed appliance body; lighting means housed in an electrical component housing portion of the appliance body and having electrical components; and a predetermined space portion formed between the lighting means and the upper side of the frame portion The opening of the instrument body is closed by a surface display means provided in the opening of the instrument body having a light guide and a display panel, and a light source provided along one side of the upper side of the surface display means, The surface display means and the light source are provided so that the upper side of the light source is along the upper side of the frame part of the instrument body, and form a rectangular shape having substantially the same size as the opening of the instrument body. Opposite and on the outside of the instrument body And which are located so as to be. Accordingly, the display means on the surface is attached so as to close the opening of the instrument body, and the light from the light source is irradiated on the light guide of the display means on the surface, and the light incident on the light guide is refracted and displayed. Output to the electrical component storage section inside the instrument body will not adversely affect the optical properties such as being shaded even if stored in the electrical component storage section inside the instrument body, and the degree of freedom of arrangement of the electrical components is increased, Since the surface display means and the light source are arranged so that the upper side of the light source is along the upper side of the frame part of the instrument body and is formed in a rectangular shape having almost the same size as the opening of the instrument body, the frame part is placed on the ceiling. The versatility at the time of attachment improves by attaching to a surface or attaching a back surface to a wall surface. In addition, the predetermined space portion is a work space that is large enough for a worker's hand to enter, thereby improving workability.

  The lighting device according to claim 2 is the lighting device according to claim 1, wherein the lighting means has a wiring cord housed in a predetermined space having a connector at the tip, and the light source has a socket connected to the wiring cord. It is characterized by having. By electrically connecting the connector to the socket of the light source, it is possible to use both hands at work in high places.

  According to the lighting device of the first aspect, the display means on the surface is attached so as to close the opening of the instrument body, and the light guide of the display means on the surface is irradiated with light from the light source to the light guide. Since the incident light is refracted and output to the display means, even if the electrical component is stored in the electrical component storage part inside the instrument body, there is no adverse effect on the optical characteristics such as being shaded. The degree of freedom is increased, and the surface display means and the light source are arranged so that the upper side of the light source is along the upper side of the frame of the instrument body, and is formed in a square shape that is almost the same size as the opening of the instrument body. Therefore, the versatility at the time of attachment improves by attaching a frame part to a ceiling surface, or attaching a back surface to a wall surface etc. In addition, the predetermined space portion is a work space that is large enough for a worker's hand to enter, thereby improving workability.

  According to the lighting device of the second aspect, it is possible to use both hands in work at a high place by electrically connecting the connector of the lighting means to the socket of the light source.

  Hereinafter, an embodiment of a guide light device of the present invention will be described with reference to the drawings.

  FIG. 1 is an exploded perspective view showing the guide lamp device, FIG. 2 is a perspective view showing the fixture body from the back side, and FIG. 3 is a front view with a part cut away showing the guide lamp device from the front side.

  As shown in FIG. 1, a guide lamp device 1 that is a lighting device has a resin-made fixture body 2, and the fixture body 2 has a rectangular frame portion 3 around it, and the front surface of the frame portion 3. An opening 4 is formed on the side, the back side of the frame 3 is closed by a back plate 5, and an electrical component storage 6 is formed in the portion closed by the frame 3 and the back plate 5.

  In addition, a power line insertion hole 7 through which a power line (not shown) is inserted on the upper side of the frame 3 when attached to the ceiling surface or the like, a screw (not shown) on the ceiling surface or the like at a symmetrical position around the power line insertion hole 7 Screw insertion holes 8 are formed as attachment portions at the time of attachment. On the other hand, a metal reinforcing plate 11 is attached to the inner surface side of the upper side of the frame portion 3, and a hook portion 12 is formed on the reinforcing plate 11.

  Further, when the back plate 5 is attached to a wall surface or the like, a power line insertion hole 15 through which a power line (not shown) is inserted, and a screw or the like (not shown) attached to the wall surface or the like at a symmetrical position around the power line insertion hole 15. The screw insertion holes 16 of the daruma hole as the attached portions are each formed with a knockout structure, and a pair of rectangular wiring insertion holes 17 are similarly formed with a knockout structure. The Dharma hole is not limited to the one having a large lower diameter, and a portion having a large diameter may be provided on the side.

  In addition, mounting portions 21 and 21 are formed on both sides of the frame portion 3 so as to protrude inward at different height positions, and are similarly mounted on the back side of the back plate 5 at different height positions. The openings 22 and 22 are formed so that the mounting portions 21 and 22 are formed so that the left and right height positions are the same when viewed from the front.

  A lighting unit 25 as a lighting means storing an inverter circuit or the like is attached to the center of the electrical component storage unit 6, and a terminal block 26 is attached to the upper part of the lighting unit 25. The unit 25 and the terminal block 26 are electrically connected by a wiring cord 27. Further, from the lighting unit 25, two wiring cords 29 having a connector 28 at the tip are drawn out, and a battery is provided below the lighting unit 25. 30 is installed.

  Further, a space 31 is formed between the upper portion of the frame 3 above the lighting unit 25 and the portion where the screw insertion hole 8 is provided, so that a screw inserted through the screw insertion hole 8 or an operator's hand can be used. It becomes a work space of a predetermined size to enter, improving workability.

  The opening 4 of the frame 3 is provided with surface display means 40 as display means having a size substantially closing the opening 4, and the surface display means 40 is made of acrylic resin and a flame retardant such as halide. A milky white display panel 41 made of a flame-retardant acrylic resin plate with added is attached, a pictogram 42 which is an induction display is displayed on the surface of the display panel 41, and an acrylic as a light guide is displayed on the back of the display panel 41. A resin-made rectangular plate-shaped light guide plate 43 is provided.

  Further, a light source 44 is attached to one side of the upper surface of the surface display means 40. The light source 44 has a straight tube type fluorescent lamp 45 and a substantially U-shaped cross section for reflecting light from the fluorescent lamp 45 toward the light guide plate 43. A reflector plate 46 is attached, and a socket (not shown) for connecting the connector 28 is attached to the light source 44. Furthermore, mounting portions 47 and 47 having different heights corresponding to the mounting portions 21 and 21 are formed on the rear surface side of the light guide plate 43 so as to protrude, and the tips of the mounting portions 47 are formed in a tapered shape on the side surface. A locking projection 48 for locking is formed to protrude.

  On the other hand, the back plate 5 is provided with a back display means 50 as a display means having substantially the same shape as the back plate 5, and the back display means 50 has a flame retardancy obtained by adding a flame retardant such as a halide to an acrylic resin. A milky white display panel 51 of an acrylic resin plate is attached, a pictogram which is an induction display is displayed on the surface of the display panel 51, and a rectangular plate made of acrylic resin as a light guide is provided on the back of the display panel 51. A light guide plate 53 is provided.

  Further, a light source 54 is attached to one side of the upper portion of the rear display means 50. The light source 54 has a straight tube type fluorescent lamp 55 and a U-shaped cross section that reflects light from the fluorescent lamp 55 toward the light guide plate 53. The light source 54 is attached with a socket 52 to which the connector 28 is connected. Further, mounting portions 57 and 57 having different heights corresponding to the mounting portions 22 and 22 are formed on the back surface side of the light guide plate 53 so as to protrude, and the tips of the mounting portions 57 are formed in a tapered shape on the side surface. A locking projection 58 for locking projects.

  In addition, a linear body 59 such as a wire or a chain attached to the hook portion 12 is connected to the display panel 41 for temporary fixing and prevention of dropping.

  Note that the display panel 41 and the display panel 51 may be the same. However, in this case, if the display has directionality, it is necessary to make the display direction consistent.

  Next, the use state of the above embodiment will be described.

First, the case where only the display panel 41 is used and the display panel 41 is attached to the ceiling surface by single-sided display will be described.

All of the power line insertion hole 15, the screw insertion hole 16 and the wiring insertion hole 17 of the back plate 5 are left as they are without being knocked out.

  Further, a screw is inserted from the inside into the screw insertion hole 8 of the instrument main body 2, the instrument main body 2 is attached to the ceiling surface with a screw, a power supply line is introduced from the power supply line insertion hole 7, and connected to the terminal block 26.

  Then, the instrument body 2 and the display panel 41 are connected and temporarily fixed by the linear body 59, and the connector 28 is electrically connected to the socket of the light source 44 so that both hands can be used at high places.

  Further, the attachment portions 47, 47 of the display panel 41 are inserted into the mounting portions 21, 21 of the instrument body 2, and the opening 4 of the instrument body 2 is closed with the display panel 41. The instrument body 2 and the display panel 41 are connected by the linear body 59 to prevent the display panel 41 from falling.

  Next, a case where the display panel 51 is also attached to display on both sides will be described.

  In this case, the power line insertion hole 15 of the back plate 5 is knocked out in advance, and the connector 28 is electrically connected to the socket 52 of the light source 54 via the wiring insertion hole 17. Further, the mounting portions 57 and 57 of the display panel 51 are inserted into the mounting portions 22 and 22 of the instrument body 2, and the display panel 51 is attached to the back plate 5 of the instrument body 2.

  After that, it is the same as the one-sided display described above.

  In addition, a case will be described in which only the display panel 41 is used to attach to the wall surface with single-sided display.

  Knock out the power line insertion hole 15 and screw insertion hole 16 of the back plate 5, insert a screw from the inside into the screw insertion hole 16 of the instrument body 2, attach the instrument body 2 to the wall surface with the screw, and from the power line insertion hole 15 A power line is introduced and connected to the terminal block 26.

  After that, it is the same as the one-sided display described above.

  According to the above embodiment, since the electrical component storage section 6 of the appliance body 2 is not related to the optical characteristics, even if the lighting unit 25 is arranged in the center, the display is not shaded. Can be arranged. Moreover, since the space part 31 is provided above the lighting unit 25 and the lighting unit 25 and the battery 30 which are comparatively heavy are located below the fixture main body 2 by this space part 31, a gravity center becomes low and stability improves. .

  In addition, the light sources 44 and 54 are positioned on the display panel 41 or the display panel 51 and disposed outside the instrument body 2, so that the heat of the light sources 44 and 54 is easily dissipated and the temperature rise can be reduced. The lighting unit 25 and the battery 30 are hardly affected by heat.

  Furthermore, the thickness of the instrument body 2 is increased by varying the height of the left and right mounting parts 21, 21, 22, 22 and by varying the height of the corresponding mounting parts 21, 22 on the front and back sides. In addition, the lengths of the attached portions 45 and 55 can be increased, the display panel 41 and the display panel 51 can be securely attached to the instrument body 2, and the positions of the mounting portions 21 and 22 are the same in plan view. As a result, the same display panel 41 and display panel 51 can be used.

  In addition, since the power line insertion hole 15 and the screw insertion hole 16 of the back plate 5 have a knockout structure, the power supply line insertion hole 15 and the screw insertion hole 16 are not formed by knockout. 5 can be used as a member for closing the normal back surface of the guide lamp device 1.

  Furthermore, by using acrylic resin for the light guide plates 43 and 53, light utilization efficiency and uniformity can be improved, and longer life of the fluorescent lamps 45 and 55 can be expected, so that energy saving can be achieved.

  A pictogram may be provided directly on the light guide plate 43.

  Next, another embodiment will be described with reference to FIG.

  4 is an enlarged perspective view showing a part of a light guide plate according to another embodiment. As shown in FIG. 4, a light guide plate 61 is used in place of the light guide plates 43 and 53. FIG.

  A plurality of minute recesses 62 are formed on the surface of the light guide plate 61 opposite to the surface on which the display panels 41 and 51 are located to improve the light emission efficiency toward the display surface. As shown in FIGS. 5 and 6, the concave portion 62 is formed with an inclined surface 63 having a surface obtained by obliquely cutting the circumferential surface of a cylinder at a portion facing the fluorescent lamp 37 at one end. Irradiation light from the lamp 37 is reflected and directed toward the display surface, and the concave portion 62 is tapered toward the display surface side. The inclined surface 63 of the recess 62 is such that the light propagating through the light guide plate 61 is totally reflected by the inclined surface 53, and the incident angle with respect to the display surface is set within a critical angle determined by the refractive index of the light guide plate 61. I just need it. The concave portion 62 is formed as a whole by integral processing, such as by injection processing, into a concave shape that is cut as obliquely as possible from the surface of one end of the cylinder.

  Further, light direction changing means 65 is disposed on the surface side of the light guide plate 61 where the display panels 41 and 51 are located, and the light direction changing means 65 has an axis in a direction perpendicular to the longitudinal direction of the fluorescent lamps 45 and 55. A plurality of convex portions 66 each having a direction and having a hypotenuse with a hypotenuse of 45 degrees with respect to the lower side are formed side by side in parallel. Further, the convex portions 66 of the light direction changing means 65 guide the light from the fluorescent lamps 45, 55 to the back of the light guide plate 61, that is, the direction farthest from the fluorescent lamps 45, 55, so that the fluorescent lamps 41, The outgoing light spread in the axial direction of 51 is refracted in the normal direction of the display panels 41 and 51.

  In the light guide plate 61, incident light from the fluorescent lamps 45 and 55 is reflected by the reflecting surface 63 toward the display panels 41 and 51, and incident light from the side opposite to the fluorescent lamps 45 and 55 is reflected by the reflecting surface 64. , 51 reflected.

  The light incident on the light guide 61 from the fluorescent lamps 45 and 55 is reflected several times directly or on the surface on the display panel 41 or 51 side and the surface opposite to the display panel 41 or 51, The light is emitted from the display panels 41 and 51.

  Here, the light emitted from the fluorescent lamps 45 and 55 is preferably distributed in the optical axis direction of the light guide plate 61 in a cross section orthogonal to the axial direction of the fluorescent lamps 45 and 55 by the reflecting plates 46 and 56. . On the other hand, in the cross section parallel to the axial direction of the fluorescent lamps 45 and 55, the light distribution cannot be controlled by the reflectors 46 and 56, so that the light distribution has a large spread. Since the display panels 41 and 51 of the light guide plate 61 are flat, they depend on the light distribution of the display panels 41 and 51, and are perpendicular to the surfaces of the display panels 41 and 51 and parallel to the axial direction of the fluorescent lamps 45 and 55. On the other hand, the outgoing light distribution has a large spread.

  Also, light that hits the slope of the convex portion 66 of the light direction changing means 65 is refracted in the normal direction and emitted, and light that hits the upper side is not refracted in the normal direction, so it depends on the length of the upper side of the trapezoid Then, the light collection performance by the convex portion 66 is determined, and the transmittance and reflectance of the convex portion 66 depend on the incident angle of the convex portion 66, and the reflected light propagates in the light guide plate 61. The characteristics of the light guide plate 61 are not impaired. Thus, even if the length in the depth direction of the guide light device 1 is shortened, the front luminance of the surfaces of the display panels 41 and 51, that is, the light in the normal direction of the surfaces of the display panels 41 and 51, Light utilization efficiency is improved.

  Another embodiment will be described with reference to FIG.

  FIG. 7 is an enlarged perspective view showing a part of a light guide plate according to another embodiment. As shown in FIG. 7, a light direction changing means 71 is used instead of the light direction changing means 65. .

  In the light direction changing means 71, a plurality of convex portions 72 having a substantially triangular cross section having an axial direction in a direction orthogonal to the longitudinal direction of the fluorescent lamps 45 and 55 are formed side by side in parallel. The convex portions 72 of the light direction changing means 71 guide the light from the fluorescent lamps 45 and 55 to the back of the light guide plate 61, that is, the direction farthest from the fluorescent lamps 45 and 55. The outgoing light spread in the axial direction of 55 is refracted in the normal direction of the display panels 41 and 51.

  Further, an opposing plate 73 made of acrylic resin is disposed so as to face the convex portion 72, and the opposing plate 73 is parallel to the longitudinal direction of the fluorescent lamps 45 and 55 on the surface opposite to the surface facing the convex portion 72. A plurality of triangular grooves 74 having a substantially triangular cross section having an axial direction are formed side by side in parallel. Further, the triangular grooves 74 of the light direction conversion means 71 refract the light from the light guide plate 61 in the normal direction of the display panels 41 and 51, and improve the light utilization efficiency as in the case shown in FIG.

  Furthermore, another embodiment will be described with reference to FIG.

  FIG. 8 is a perspective view showing a display means according to another embodiment. As shown in FIG. 8, a display means 80 is used instead of the front surface display means 40 or the back surface display means 50 shown in FIG. .

  As shown in FIG. 8, the display means 80 includes a case body 82 made of milky white flame-retardant acrylic resin having a display panel portion 81 that is open at the top and serves as a display panel on the front surface. A light guide plate 83 which is a plate-like light guide made of acrylic resin is accommodated.

  Since the light guide plate 83 has only to be accommodated in the case body 82 in this way, the manufacturing can be facilitated.

  The mounting portions 57, 57 are provided in a line symmetry, but may be provided in a line symmetry if the overall thickness is not considered or if mutual interference is not considered.

It is a disassembled perspective view which shows the guide light apparatus of one embodiment of this invention. It is a perspective view which shows an instrument main body same as the above from the back side. It is the front view which notched a part which shows a guide light apparatus same as the above from the front side. It is a perspective view which expands and shows a part of light guide plate of other embodiment same as the above. It is a schematic diagram which shows the shape of the recessed part of the light-guide plate shown in FIG. 4 same as the above. It is a side view which shows the light-guide plate of other embodiment same as the above. It is a perspective view which expands and shows a part of light guide plate of other embodiment same as the above. It is a perspective view which shows the display means of other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Guide light apparatus 2 which is an illuminating device ... Appliance body 3 ... Frame part 4 ... Opening part 5 ... Back plate 6 ... Electrical component storage part 7 ... Power supply line insertion hole 8 ... Screw insertion hole as to-be-attached part
17 ... Wiring insertion hole
21,22 ... Mounting part
25 ... Lighting unit as lighting means
26 ... Terminal block
29 ... Wiring cord
31 ... space
40. Surface display means as display means
41… Display panel
43, 53, 83 ... Light guide plate as light guide
44, 54 ... Light source
47,57 ... Mounting part
50. Rear display means as display means
51 ... Display panel
80 ... Display means

Claims (2)

An instrument main body having a rectangular frame portion provided with a mounted portion on the upper side and having a rectangular opening formed at least on the front surface of the frame portion and an electrical component storage portion formed therein;
Lighting means housed in the electrical component housing part of the appliance body and having electrical components;
A predetermined space formed between the lighting means and the upper side of the frame;
In a lighting device comprising:
The opening of the instrument main body has a light guide and a display panel, and is blocked by a surface display means provided in the opening of the instrument main body and a light source provided along one side of the upper side of the surface display means to display the surface. The means and the light source are provided so that the upper side of the light source is provided along the upper side of the frame part of the instrument body, and is arranged so as to form a square shape having substantially the same size as the opening of the instrument body. Lighting device.   2. The lighting device according to claim 1, wherein the lighting means has a wiring cord housed in a predetermined space having a connector at the tip, and the light source has a socket connected to the wiring cord.

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