JP2010027245A - Guide light - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guide light capable of certainly receiving wireless signals and suppressing the degradation in external appearance, while suppressing an increase in cost. <P>SOLUTION: The guide light A includes: a light guide plate 5 irradiating incident light of a light source from an end surface forward; a display panel 4 arranged in front of the light guide plate 5 and carrying out predetermined display by transmitting the light from the light guide plate 5; a reflector 6 arranged at the backside of the light guide plate 5 and forward-reflecting light traveling backward among light transmitting the inside of the light guide plate 5; a remote control light receiving block 23 arranged at the backside of the reflector 6 and receiving wireless signals Si transmitted from a remote control transmitter 27; and a lighting control block 12 controlling lighting conditions of the light source based on the received wireless signals Si. A light receiving hole 6a is penetrated in front of a light axis c of the remote light receiving block 23 in the reflector 6. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a guide light.

  Conventionally, various guide lights that can check the light source, storage battery, etc. based on the wireless signal transmitted from the remote control transmitter have been provided, but most of them are equipped with a signal receiver for receiving the wireless signal from the display board. Are also arranged on outer parts such as a frame arranged outside. In this case, the outer dimension of the outer part is increased in order to arrange the signal receiving part, or a hole for exposing the signal receiving part to the front is provided in the outer part, but the outer part is made larger than necessary. As a result, there is a problem that the cost is increased, and dust or the like enters the hole to impair the appearance.

Therefore, in order to solve the above problems, a signal receiving unit arranged inside the frame has been proposed (see, for example, Patent Document 1). This guide light uses a material having a high light transmittance as a material of the display board, and by arranging the signal receiving part close to the display board, the signal receiving part can receive the wireless signal transmitted through the display board. It has become.
Japanese Unexamined Patent Publication No. 2007-250267 (paragraph [0019] -paragraph [0040] and FIGS. 1 to 4)

  The guide light shown in the above-mentioned Patent Document 1 can suppress a decrease in appearance while suppressing an increase in cost as compared with the case where the signal receiving unit is provided in the outer part. Therefore, the signal receiving unit needs to be separated from the light source to some extent so that the signal receiving unit does not malfunction due to the light emitted from the light source. Therefore, the entire lamp is increased in size, resulting in an increase in cost.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a guide light that can reliably receive a wireless signal while suppressing an increase in cost and that suppresses a decrease in appearance. It is to provide.

  According to a first aspect of the present invention, there is provided a light guide plate that irradiates light from a light source incident from an end face forward, and a display plate that is disposed in front of the light guide plate and transmits predetermined light by transmitting light from the light guide plate. A reflector disposed behind the light guide plate and reflecting forwardly the light that passes through the interior of the light guide plate; and a wireless device disposed behind the reflector plate and transmitted from the remote control transmitter A remote control signal receiving unit that receives the signal and a lighting control unit that controls the lighting state of the light source based on the received wireless signal, and a hole is provided in front of the optical axis of the remote control signal receiving unit in the reflector. Features.

  According to the first aspect of the present invention, since the wireless signal transmitted through the display plate and the light guide plate can be received through the hole provided in the reflecting plate, it is possible to realize a guide light that can reliably receive the wireless signal. In addition, since the remote control signal receiving unit only receives the light that has passed through the hole, malfunction due to light from the light source is unlikely to occur, and the remote control signal receiving unit can be disposed close to the reflector, and as a result, Patent Document Compared with the guide light shown in FIG. 1, the overall size of the lamp can be reduced, so that an increase in cost can be suppressed. Further, since the remote control signal receiving unit is arranged inside, there is an effect that it is possible to prevent intrusion of dust and the like and to suppress a decrease in appearance.

  Embodiments of a guide light according to the present invention will be described below with reference to FIGS. The guide lamp according to the present invention is embedded in a construction surface such as a floor surface and used as a sign for evacuation guidance. In the following description, unless otherwise specified, the direction of the arrow ab in FIG. 3A is the vertical direction, the direction of the arrow cd is the front-rear direction, and the direction of the arrow ef is the left-right direction. To do.

  As shown in FIG. 2, the guide lamp A of the present embodiment includes a frame 1, a packing 2, a protective cover 3, a display plate 4, a light guide plate 5, a reflecting plate 6, a base 7, and a lamp body. 8 and is housed in, for example, a rectangular box-shaped embedding box 9 embedded in the floor surface.

  The frame body 1 is made of, for example, stainless steel and is formed in a horizontally long rectangular frame shape having a rectangular opening 1a in the center, and a screw insertion hole through which a fixing screw 10 is inserted into the outer peripheral portion of the frame body 1. A plurality (six in this embodiment) of 1b are provided at predetermined positions. Here, the opening dimension of the opening 1a is set to be approximately the same as the outer dimension of the upper cover 3a constituting the protective cover 3 to be described later. In the assembled state, the upper surface of the upper cover 3a is directed upward through the opening 1a. It is exposed (see FIG. 1).

  The packing 2 is, for example, a synthetic resin molded product, and is formed in a rectangular frame shape having substantially the same outer dimensions as the frame body 1, and an opening portion 2 a that opens at substantially the same size as the opening portion 1 a at the center. Is provided. Similarly, screw insertion holes 2b through which the fixing screws 10 are inserted are respectively penetrated at portions corresponding to the respective screw insertion holes 1b.

  The protective cover 3 is made of, for example, transparent tempered glass, and is formed in a double structure with a substantially rectangular plate-like upper cover 3a and lower cover 3b. The upper cover 3a is formed to have substantially the same outer dimensions as the light guide plate 5 described later, the lower cover 3b is longer and wider than the upper cover 3a, and the overhanging portion 3c projects outward from the light guide plate 5. Are integrally formed over the entire circumference.

  The display board 4 is, for example, a synthetic resin molded product, is formed in a horizontally long substantially rectangular plate shape, and a display pattern P configured by a pictogram simulating an arrow or a person pointing in the left-right direction on the upper surface of the display board 4. Is formed by printing. In the present embodiment, the outer dimension of the display plate 4 is set to be substantially the same as the opening size of the opening 1a of the frame 1 so that the entire upper surface of the display plate 4 can be viewed from above. ing.

  The light guide plate 5 is, for example, a transparent acrylic resin molded product, and is set to have substantially the same dimensions as the outer dimensions of the display plate 4 described above, and is disposed below the display plate 4 in an assembled state. Light source blocks 11 and 11 are arranged to face the left and right end surfaces of the light guide plate 5 in the assembled state, and the light emitted from each light source block 11 is the end surface of the light guide plate 5. Is transmitted through the light guide plate 5 and irradiated upward (that is, on the display plate 4 side).

  The reflection plate 6 has a horizontally long, substantially rectangular plate shape, and both end portions in the front-rear direction are bent upward, and are arranged so as to hold the light guide plate 5 from below. In addition, light receiving holes 6a and 6a (holes) are respectively provided in the main surface of the reflecting plate 6 at point-symmetric positions. One of the light receiving holes 6a is disposed so as to face a light receiving element 19 of a remote control light receiving block 23 described later in the assembled state, and a wireless signal Si (for example, infrared light) transmitted from the remote control transmitter 27 (see FIG. 1). Etc.) can be received. Here, since the light receiving holes 6a and 6a are provided at point-symmetric positions, even if the reflector 6 is mounted with the left and right sides switched, one of the light receiving holes 6a faces the light receiving element 19. As a result, the wireless signal Si can be reliably received and an attachment error of the reflector 6 can be prevented. The opening diameter of the light receiving hole 6a is preferably set to be approximately the same as the diameter of the light receiving portion of the light receiving element 19.

  The base 7 is a case for storing electrical components to be described later, and a power supply terminal block 22 and a storage battery 24 for supplying power in the event of a power failure are provided inside a horizontally long rectangular box-shaped base body 7a opened upward. Or the lighting control block 12 is accommodated. The lighting control block 12 has a self-checking function for checking the lighting circuit (not shown), the status of the cold cathode fluorescent lamp 21 and the storage battery 24 constituting the light source block 11 (for example, the charging state of the storage battery 24). A control circuit for controlling the lighting circuit is incorporated. Further, the light source blocks 11 and 11 are disposed at both left and right ends of the base body 7a so as to face each other. As described above, each light source block 11 faces the left and right end surfaces of the light guide plate 5 in the assembled state. Arranged in a shape to Further, a switch block 13 and a remote control light receiving block 23 attached to the mounting bracket 20 are also housed inside the base body 7a.

  As shown in FIG. 1, the mounting bracket 20 has mounting pieces 20b and 20c formed in a substantially L shape, which are integrally bent via a connecting piece 20a, and the other mounting piece 20c is a connecting piece. It is bent so as to be inclined obliquely upward with respect to 20a. Further, a light receiving hole 20e is provided in a portion corresponding to the light receiving element 19 in the mounting piece 20b, and monitor lamps 15 and 16 constituting the switch block 13 are provided in a portion corresponding to the switch block 13 in the mounting piece 20c. In addition, a notch 20f that exposes the inspection switch 17 and the self-inspection switch 18 is provided (see FIG. 3B). Further, a reflection piece 20d for reflecting light from the monitor lamps 15 and 16 is integrally provided at the tip of the mounting piece 20c, and a part of the light emitted from the monitor lamps 15 and 16 is reflected by this. It is reflected upward by the piece 20d. Here, the switch block 13 is attached to the mounting piece 20c using a fixing screw as shown in FIG. 1, and the remote control light receiving block 23 is attached to the mounting piece 20b using a fixing screw.

  As shown in FIG. 2, the light source block 11 includes a lamp holder 25 formed in a substantially U-shape and a straight tube type cold cathode fluorescent lamp 21. Each cold cathode fluorescent lamp 21 includes an electric wire. 26 are respectively connected to the output terminals of the lighting control block 12 (see FIG. 4).

  As shown in FIG. 2, the lamp body 8 has a horizontally long, substantially rectangular box shape whose upper surface is open, and an opening edge of the lamp body 8 is provided with a flange 8a extending outward. ing. Further, the flange portion 8a is provided with screw holes 8b into which the fixing screws 10 are screwed in portions corresponding to the screw insertion holes 1b of the frame body 1 and the screw insertion holes 2b of the packing 2, respectively.

  Next, the circuit configuration of the guide light A of the present embodiment will be described. FIG. 4 is a schematic block diagram of the guide light A of the present embodiment, and the lighting control block 12 is connected with a power terminal block 22, a storage battery 24, a remote control light receiving block 23, a switch block 13 and a cold cathode fluorescent lamp 21, respectively. Yes. Here, the lighting control block 12 generates operation power from the commercial power supply AC supplied from the power supply terminal block 22 at normal times, charges the storage battery 24 while supplying power to the lighting circuit (not shown), and at the time of power failure. An operating power source is generated from the discharged power from the storage battery 24, and power is supplied to the lighting circuit. When the lighting power is supplied to each cold cathode fluorescent lamp 21 from the lighting circuit, each cold cathode fluorescent lamp 21 is turned on. The power supply terminal block 22 is provided with a regular turn-off switch 22a. When an inspector or the like presses the regular turn-off switch 22a, the lighting control block 12 cuts off the supply of the commercial power supply AC to the lighting circuit. As a result, the cold cathode fluorescent lamps 21 and 21 of both the light source blocks 11 and 11 are turned off.

  The switch block 13 includes monitor lamps 15 and 16, a check switch 17, and a self-check switch 18, and the monitor lamp 15 is made of, for example, a red LED and is lit, extinguished or blinking according to the state of the cold cathode fluorescent lamp 21. To do. For example, when the cold-cathode fluorescent lamp 21 is normal, the monitor lamp 15 is turned off, is turned on when an abnormality such as detachment or breakage of the lamp, and further blinks when the lamp replacement time has elapsed. On the other hand, the monitor lamp 16 is made of, for example, a green LED, and is turned on, turned off, or blinked according to the state of the storage battery 24. For example, the monitor lamp 16 is turned on when the storage battery 24 is normal, is turned off when the battery is disconnected, and blinks when the battery replacement time has passed.

  The inspection switch 17 is, for example, a momentary type push button switch, and is lit in an emergency state only while this switch is being pressed. That is, while the inspection switch 17 is being pressed, the lighting control block 12 stops the supply of the commercial power supply AC to the lighting circuit, and the cold cathode fluorescent lamp 21 is turned on based on the discharge power from the storage battery 24. Further, the self-inspection switch 18 is, for example, a momentary type pushbutton switch. When the self-inspection switch 18 is pressed, the lighting control block 12 cuts off the supply of the commercial power supply AC and the storage battery 24 uses the cold cathode fluorescent lamp 21. Is lit for emergency at the rated time, and after the rated time has elapsed, it is automatically switched to regular lighting (that is, the lighting state by the commercial power supply AC) (hereinafter referred to as self-inspection). At this time, the lighting control block 12 also checks the states of the cold cathode fluorescent lamp 21 and the storage battery 24 and displays the inspection results by the monitor lamps 15 and 16 described above.

  The remote control light receiving block 23 includes a light receiving element 19 for receiving the wireless signal Si transmitted from the remote control transmitter 27 (see FIG. 1). When the light receiving element 19 receives the wireless signal Si, the received wireless signal is received. A control signal corresponding to Si is input to the lighting control block 12. In the lighting control block 12, various control operations are executed in accordance with the input control signal. For example, when an inspection switch 28 provided on the remote control transmitter 27 is pressed, a wireless signal Si corresponding to the inspection switch 28 (a signal corresponding to the self-inspection function in this embodiment) is transmitted from the remote control transmitter 27. When the light receiving element 19 receives the wireless signal Si, the lighting control block 12 performs the above self-inspection. In the guide light A of the present embodiment, since the remote control light receiving block 23 is disposed below the reflecting plate 6, the light receiving hole 6 a is provided in the portion corresponding to the light receiving element 19 in the reflecting plate 6. In the state, the reflector 6, the mounting bracket 20, and the remote control light receiving block 23 are arranged so that the center axes of the light receiving hole 6 a, the light receiving hole 20 e provided in the mounting bracket 20, and the light receiving element 19 substantially coincide with each other. . Here, in the present embodiment, a remote control signal receiving unit is configured by the remote control light receiving block 23, and a lighting control unit is configured by the lighting control block 12.

  Next, the assembly procedure of the guide light A will be described. In the following description, the light source block 11, the lighting control block 12, the power terminal block 22, the storage battery 24, the switch block 13 and the remote control light receiving block 23 are stored in the base 7 in advance, and the electric wires (not shown) are connected between the electrical components. Will be described as being connected in advance. First, the lamp body 8 is housed in the embedded box 9 embedded in the floor, and the power line 14 introduced into the embedded box 9 through the electric wire hole 9a is passed through the electric wire hole (not shown). It is introduced into the main body 8. Next, after the base 7 is housed in the lamp body 8, the power line 14 is connected to the input end of the power terminal block 22. After that, the reflective plate 6, the light guide plate 5, the display plate 4, and the protective cover 3 are stacked in this order on the base 7. At this time, the reflecting plate 6 is arranged so that one light receiving hole 6 a is positioned in front of the optical axis c of the light receiving element 19 of the remote control light receiving block 23. Finally, the packing 2 and the frame body 1 are arranged in this order from above, and the fixing screws 10 inserted through the screw insertion holes 1b and 2b are screwed into the corresponding screw holes 8b, respectively. Completion (see FIG. 3A).

  Further, the operation of the guide light A will be described with reference to FIG. When the inspection switch 28 of the remote control transmitter 27 is pressed to transmit the wireless signal Si, the wireless signal Si passes through the protective cover 3, the display plate 4, and the light guide plate 5, passes through the light receiving hole 6 a of the reflecting plate 6, and is received by the light receiving element 19. To reach. When the light receiving element 19 receives the wireless signal Si, a control signal corresponding to the received wireless signal Si (in this embodiment, a signal corresponding to the self-inspection function) is input to the lighting control block 12, and the lighting control block 12 After performing the self-inspection described above, the states of the cold cathode fluorescent lamp 21 and the storage battery 24 are displayed by the monitor lamps 15 and 16 (only the monitor lamp 16 is shown in FIG. 1). At this time, the direct light from the monitor lamps 15 and 16 passes through the protruding portion 3c of the lower cover 3b constituting the protective cover 3 and is obliquely upward from the opening 1a of the frame 1 (indicated by the arrow a in FIG. 1). Direction). A part of the light emitted from the monitor lamps 15 and 16 is reflected by the reflecting piece 20d, passes through the inside of the protective cover 3, and obliquely above the opening 1a of the frame 1 (arrow in FIG. 1). (direction b). Then, by checking the direct light or reflected light from the monitor lamps 15 and 16 by the inspector, the state of the cold cathode fluorescent lamp 21 and the storage battery 24 can be grasped.

  Thus, according to the guide light A of the present embodiment, since the wireless signal Si transmitted through the display plate 4 and the light guide plate 5 can be received through the light receiving hole 6a provided in the reflection plate 6, the wireless signal Si is reliably received. A possible guide light A can be realized. In addition, since the light receiving element 19 of the remote control light receiving block 23 receives only the light that has passed through the light receiving hole 6a, malfunction due to the light from the light source block 11 is unlikely to occur, and the remote control light receiving block 23 is disposed close to the reflecting plate 6. As a result, the outer dimensions of the entire lamp can be reduced as compared with the guide lamp shown in Patent Document 1, so that the cost increase can be suppressed. Furthermore, since the remote control light receiving block 23 is disposed inside, it is possible to prevent intrusion of dust and the like, and to suppress a decrease in appearance.

  In the present embodiment, the case where the shape of the light receiving hole 6a is circular has been described as an example. However, the shape of the light receiving hole may be polygonal. In this case, the diameter of the light receiving portion of the light receiving element 19 and the light receiving hole The dimensions may be set so that the diagonals of the two are substantially equal.

It is sectional drawing which can abbreviate | omit a part of the guide light of this embodiment. It is an exploded perspective view same as the above. FIG. 4A is a perspective view, and FIG. It is a schematic block diagram same as the above.

Explanation of symbols

4 Display plate 5 Light guide plate 6 Reflector plate 6a Light receiving hole (hole)
11 Light source block (light source)
12 Lighting control block (Lighting control unit)
23 Remote control light receiving block (remote control signal receiver)
27 Remote control transmitter A Guide light Si Wireless signal

Claims (1)

  A light guide plate that irradiates light from the light source incident from the end face forward, a display plate that is disposed in front of the light guide plate and transmits predetermined light by transmitting light from the light guide plate, and behind the light guide plate A reflector that is disposed and reflects forward light out of the light passing through the light guide plate; and a remote control signal receiver that is disposed behind the reflector and receives a wireless signal transmitted from a remote control transmitter And a lighting control unit that controls the lighting state of the light source based on the received wireless signal, and the reflector has a hole provided in front of the optical axis of the remote control signal receiving unit. .

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