JP5989336B2 - Lighting device - Google Patents

Description

  The present invention relates to an illuminating device that can irradiate light in different upper and lower directions, and has an upper illuminating light source, a lower illuminating light source, and a casing that accommodates each of these light sources, and in particular, under the floor of a railway vehicle base. It is for illuminating the work surface at the time of the vehicle inspection work in the inspection pit provided in and ensuring safety.

  Conventionally, in an inspection pit provided under the floor of a railway vehicle base, a fluorescent lamp is mainly used for illuminating a work surface during vehicle inspection work and for ensuring safety. At the time of vehicle inspection work in such an inspection pit, it is necessary to widely illuminate the pit floor surface or the operator's feet in addition to the vehicle bottom surface, which is a work surface. A pair of rails laid along the upper side were installed so as to be arranged at equal intervals.

  Even for lighting fixtures used in such special environments as inspection pits, no special lighting fixtures have been developed so far, and light distribution control has not been performed. Moreover, as a general trend of recent lighting fixtures, an LED lamp that uses an LED lamp as a light source instead of a fluorescent lamp is increasing. As what can be utilized as a lighting fixture for an inspection pit, for example, it is conceivable to divert the LED illuminator for station premises illumination described in Patent Document 1 as it is.

JP 2011-128948 A

  However, in the conventional general fluorescent lamp and the LED illuminator described in Patent Document 1, light distribution control is not considered for the inspection pit. In particular, the mounting position in the pit is in the vicinity of the operator's line of sight, so lack of consideration for dazzling and is not preferable for safety, and there is a possibility that it cannot be sufficiently illuminated over a wide range to the feet.

  In the inspection pit, there is a necessary illuminance depending on the work content. Usually, about 100 to 200 lux is generally sufficient, but depending on the work content, a higher illuminance may be required locally. However, since the conventional illumination for the inspection pit is fixed and cannot be moved, a separate hand lamp has to be prepared as an auxiliary light, and the work is overlying.

  The present invention has been made by paying attention to the problems of the prior art as described above. The light distribution control in which the upper part is widely irradiated with indirect light and the lower part is irradiated with direct light brightly, particularly for inspection pits. When used as lighting, it reduces glare to the operator, can efficiently illuminate the bottom and feet of the vehicle, and can also illuminate specific locations freely, making it efficient and appropriate It aims at providing the illuminating device which can implement | achieve illumination.

The gist of the present invention for achieving the object described above resides in the inventions of the following items.
[1] It is possible to irradiate light in different upper and lower directions, a light source for upper irradiation (20), a light source for lower irradiation (30), and a casing (11) for housing these light sources (20, 30), In a lighting device (10) having
Forming a light exit surface (12) on the front side of the casing (11);
In the casing (11),
Accommodating the substrates (21, 31) of the upper irradiation light source (20) and the lower irradiation light source (30) so as to intersect a depth direction perpendicular to both side directions of the casing (11);
The upper irradiation light source (20) is housed in a position where the optical axis does not intersect the light emitting surface (12), and direct light from the upper irradiation light source (20) is reflected and reflected indirectly. Providing a reflecting surface (40) for emitting light at least obliquely upward from the light emitting surface (12);
In addition, the light source for lower irradiation (30) has its optical axis intersecting the light emitting surface (12), and direct light from the light source for lower irradiation (30) is obliquely downward from the light emitting surface (12). The illuminating device (10) characterized by being housed in a position where the light is emitted toward the screen.

[2] The upper illumination light source (20) and the lower illumination light source (30) are each composed of a light source having the same structure,
The reflective surface (40) expands the irradiation range of the indirect light reflected from the direct light from the upper irradiation light source (20) more than the irradiation range of the direct light from the lower irradiation light source (30). The illumination device (10) according to [1], characterized in that:

[3] The downward illumination light source (30) is included in a hand lamp (50) that is detachable from the casing (11).
The casing (11) has a mounting portion (14) for detachably storing the hand lamp (50) at a predetermined position, wherein the lighting device (1) or (2) is characterized. 10).

  [4] The lighting device (10) according to [3], wherein the hand lamp (50) is connected to the casing (11) side via a power cord.

[5] The casing (11) has a long unit shape extending in both directions,
The upper illumination light source (20), the reflection surface (40), and the lower illumination light source (30) are also shaped to extend along both sides of the casing (11). The illumination device (10) according to [1], [2], [3] or [4].

And [6] the top illumination light source (20), said lower irradiation light source (30) is obtained by arranging a plurality of LED (22 and 32) on each of said substrate (21, 31) The illumination device (10) according to [1], [2], [3], [4] or [5], which is characterized.

  [7] [1], [2], [3], [4], [5] or [6], wherein the casing (11) is formed of a resin material having insulating properties. Lighting device (10).

[8] A control unit (61) for turning on the light source for upper irradiation (20) and the light source for lower irradiation (30), respectively.
The control unit (61) is capable of adjusting brightness at the time of lighting in addition to turning on and off the light source for upper irradiation (20) and the light source for lower irradiation (30) [1], The illumination device (10) according to [2], [3], [4], [5], [6] or [7].

[9] The lighting device (10) illuminates the work surface at the time of vehicle inspection work in the inspection pit (A) provided under the floor of the railway vehicle base and ensures safety.
The casing (11) is installed on a pair of rails (B) laid along both side walls of the opening cross section in the inspection pit (A) or above both side walls,
The upper illumination light source (20) indirectly illuminates the position of the line of sight of an operator who performs inspection work in the inspection pit (A) or the vehicle bottom surface on the pair of rails (B),
[1], [2], [3], [4], wherein the downward irradiation light source (30) directly irradiates the floor surface of the inspection pit (A) or the operator's feet. ], [5], [6], [7] or [8].

Next, the operation based on the above solution will be described.
According to the illuminating device (10) described in [1], light is emitted in different directions above and below the light emitting surface (12) on the front side of the casing (11). That is, in the casing (11), the direct light from the upper illumination light source (20) is reflected by the reflecting surface (40) without intersecting the light emitting surface (12), and the reflected indirect light is emitted. The light is emitted at least obliquely upward from the surface (12). In the casing (11), the direct light from the downward irradiation light source (30) crosses the light emission surface (12) and is emitted as it is obliquely downward from the light emission surface (12).

  By such light distribution control, it is possible to irradiate light in two vertically asymmetrical directions in which the upper part is indirect light and the lower part is direct light. For example, as described in [9] above, when the lighting device (10) for the inspection pit (A) at the railway vehicle base is used, the position of the operator's line of sight or the vehicle performing the inspection work in the inspection pit (A) Indirect light is applied to the bottom, and light is directly applied to the floor in the inspection pit (A) or the operator's feet, reducing glare to the operator and efficiently irradiating the vehicle bottom and feet. can do.

  According to the illuminating device (10) described in [2] above, the upper irradiation light source (20) and the lower irradiation light source (30) are each composed of light sources having the same structure. As a result, the parts can be shared and the cost can be reduced. Further, the reflection surface (40) expands the irradiation range of the indirect light reflected from the direct light from the upper irradiation light source (20) as compared with the direct light irradiation range from the lower irradiation light source (30). Thereby, it is possible to further reduce glare with respect to the upward irradiation, and to illuminate a wide range.

  According to the illuminating device (10) described in [3], the downward irradiation light source (30) is included in the hand lamp (50) that is detachable from the casing (11). The casing (11) has an attachment portion (14) for detachably storing the hand lamp (50) at a predetermined position. In the state in which the hand lamp (50) is housed in the attachment portion (14) of the casing (11), the downward irradiation light source (30) included in the hand lamp (50) in the casing (11) is as described above. This is a position where direct light is emitted obliquely downward from the light exit surface (12). The hand lamp (50) can be detached from the casing (11) and freely used in the hand.

  According to the illumination device (10) described in [4], the hand lamp (50) is connected to the casing (11) side via a power cord. Thereby, even if the hand lamp (50) is removed, it is in a state where it is connected to the casing (11) by wire, and it can be prevented that it is lost or misplaced elsewhere. Note that the power cord may be configured to automatically wind up the pulled-out portion.

  According to the illuminating device (10) described in [5], the casing (11) has a long unit shape extending in both directions, and includes an upward irradiation light source (20), a reflective surface (40), and the like. The downward irradiation light source (30) also has a shape extending along both sides of the casing (11). Thereby, by arranging each unit so as to be continuous in the longitudinal direction, for example, it is suitable for use as a wide range of illumination extending in the longitudinal direction.

  According to the illuminating device (10) described in [6] above, the upper irradiation light source (20) and the lower irradiation light source (30) each have a plurality of LEDs (22, 32) on the substrate (21, 31). ) Are arranged. As a result, the size can be reduced as compared with the conventional fluorescent lamp, the power consumption can be suppressed, the light distribution control is facilitated, and the service life is long, so that the replacement frequency can be reduced.

  According to the illuminating device (10) as described in said [7], the said casing (11) is shape | molded with the resin material provided with insulation. As a result, not only is insulation provided, but also water resistance and impact resistance can be improved depending on the material selected, and it can be molded into a free shape.

  According to the illumination device (10) described in [8], the control unit (61) includes the control unit (61) that turns on the upper irradiation light source (20) and the lower irradiation light source (30). In addition to turning on and off the upper irradiation light source (20) and the lower irradiation light source (30), the brightness at the time of lighting can be adjusted. As a result, in addition to the above-described light distribution control on the structural surface, a variety of light distribution controls can be performed electrically.

  According to the illuminating device of the present invention, the upper part is widely illuminated with indirect light and the lower part is illuminated with direct light brightly, particularly when used as illumination for inspection pits when illuminating the work surface. The glare to the worker can be reduced, the bottom surface of the vehicle and the feet can be efficiently irradiated, and the safety and speed of work can be assisted.

  In addition, since the downward illumination light source is a hand lamp that can be attached to and detached from the casing, it can be removed from the casing and used by hand, and it is also possible to illuminate specific locations freely. Without being limited to a place, it is possible to realize appropriate lighting with high efficiency.

It is an end view which expands and shows the internal structure of the illuminating device which concerns on embodiment of this invention. It is a perspective view which shows the illuminating device which concerns on embodiment of this invention. It is a front view which shows the illuminating device which concerns on embodiment of this invention. It is a rear view which shows the illuminating device which concerns on embodiment of this invention. It is a top view which shows the illuminating device which concerns on embodiment of this invention. It is a bottom view which shows the illuminating device which concerns on embodiment of this invention. It is a right view which expands and shows the illuminating device which concerns on embodiment of this invention. It is a left view which expands and shows the illuminating device which concerns on embodiment of this invention. It is a perspective view which expands and shows the handlamp removed from the casing of the illuminating device which concerns on embodiment of this invention. It is a front view which shows the hand lamp of the illuminating device which concerns on embodiment of this invention. It is a top view which shows the handlamp of the illuminating device which concerns on embodiment of this invention. It is a bottom view which shows the hand lamp of the illuminating device which concerns on embodiment of this invention. It is a right view which expands and shows the handlamp of the illuminating device which concerns on embodiment of this invention. It is a left view which expands and shows the handlamp of the illuminating device which concerns on embodiment of this invention. It is a block diagram which shows the control part of the illuminating device which concerns on embodiment of this invention. It is sectional drawing which shows roughly the state which attached the illuminating device which concerns on embodiment of this invention to the inspection pit of a railway vehicle base. It is a top view which shows roughly the state which attached the illuminating device which concerns on embodiment of this invention to the inspection pit of a railway vehicle base.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment that represents the present invention will be described based on the drawings.
1 to 17 show an embodiment of the present invention.
The illuminating device 10 according to the present embodiment is capable of irradiating light in different directions up and down and is suitable as illumination for an inspection pit. Hereinafter, the case where the lighting device 10 is installed in an inspection pit of a railway vehicle base will be described as an example.

  First, the inspection pit will be described. As shown in FIG. 16, an inspection pit A is provided as a concave groove having a rectangular cross section under the floor of the railway vehicle base. As for the size of the inspection pit A, for example, the width of the opening cross section is about 850 mm. In FIG. 16 (a), a pair of rails B and rails C are laid on the floor along the upper side walls of the inspection pit A. The rail B is made of I-shaped steel, and a vehicle to be inspected is placed on the rail C. In FIG. 16B, the rail C is laid directly on the floor surface.

  The illuminating device 10 may be installed inside the rail B shown in FIG. 16 (a), or as shown in FIG. 16 (b), the lighting device 10 is provided along the upper portions of both side walls in the inspection pit A. You may install in a groove. A plurality of lighting devices 10 are installed so as to be arranged at equal intervals on the same straight line, and lighting control is independently performed for each. In the example shown in FIG. 17, each lighting device 10 is arranged adjacent to each other with a distance between the centers of about 2.5 m, but is actually set appropriately to about 2.5 to 10 m. Further, in the example shown in FIG. 17, they are alternately arranged in a staggered arrangement on the left and right sides, but may be arranged so as to face each other on the left and right sides. In short, the arrangement varies depending on the required illuminance.

  As shown in FIG. 1, the illuminating device 10 includes an upper irradiation light source 20, a lower irradiation light source 30, and a casing 11 that accommodates the light sources 20 and 30. As shown in FIGS. 1 to 6, the casing 11 has a long unit shape extending in both directions, and is formed into a flat tubular closed cross-section having both ends opened. The casing 11 can be extruded by a resin material having insulating properties, but since the front side forms the light emitting surface 12, at least the front side is molded by a translucent resin material.

  As shown in FIG. 1, the upper irradiation light source 20 is accommodated in the casing 11 at a position where the optical axis does not intersect the light emitting surface 12, and reflects direct light from the upper irradiation light source 20. A reflecting surface 40 for emitting the reflected indirect light obliquely upward from the light emitting surface 12 is provided. In the casing 11, a light source 30 for downward irradiation has an optical axis that intersects the light emitting surface 12, and direct light from the light source 30 for downward irradiation is directed obliquely downward from the light emitting surface 12. It is stored in the position to emit.

  The upward irradiation light source 20 has a shape extending along both sides of the casing 11. More specifically, a plurality of surface-mounted LED chips 22 are arranged on a narrow substrate 21. Since the LED chip 22 is general, a detailed description thereof is omitted, but a type that emits light in a radiation range of a predetermined angle around an optical axis orthogonal to the substrate 21 is used. The emission color of the LED chip 22 can be arbitrarily selected. One surface of the substrate 21 is a mounting surface, and a wiring circuit to which the LED chip 22 is electrically connected is formed on the mounting surface.

  The downward irradiation light source 30 also has a shape extending along both sides of the casing 11 and has the same structure as the upward irradiation light source 20. That is, a plurality of surface-mounted LED chips 32 are arranged on a narrow substrate 31. The light source 30 for downward irradiation is included in a hand lamp 50 that can be attached to and detached from the casing 11 as will be described later. The specific types of the upper irradiation light source 20 and the lower irradiation light source 30 are not particularly limited, but are preferably LEDs. LEDs have the advantages of small size, low power consumption, and long life.

  The reflecting surface 40 has the cross-sectional shape shown in FIG. 1 and is included in a reflecting member 41 formed in a shape extending along the both sides of the casing 11. Specifically, the reflecting member 41 includes a fixing portion 42 on the inner side of the lower end portion thereof for mounting the upper irradiation light source 20 in a state in which the optical axis is directed obliquely upward (left side in FIG. 1). Yes. A pair of fitting grooves 42a and 42a facing each other are provided before and after the fixed portion 42, and both side edges of the substrate 21 of the light source 20 for upper irradiation are respectively provided between the fitting grooves 42a. It is fixed in the fitted state.

  A main reflector 43 is provided along the rear end edge of the fixing portion 42 so as to bend and rise upward on the oblique rear side and gradually curved upward on the oblique front side (right side in FIG. 1). The inner surface of the main reflecting plate 43 serves as the reflecting surface 40. A sub-reflection plate 44 is provided along the front end edge of the fixed portion 42 so as to bend and rise upward on the oblique rear side. The sub-reflection plate 44 is configured to conceal the upper irradiation light source 20 from the outside of the light emitting surface 12, and the inner side of the sub-reflection plate 44 receives direct light from the upper irradiation light source 20. The reflective surface 40a reflects toward the reflective surface 40.

  As described above, the reflection surface 40 has a shape that greatly expands in the vertical direction, and the irradiation range of the indirect light reflected from the direct light from the upper irradiation light source 20 is irradiated with the direct light from the lower irradiation light source 30. It expands beyond the range. Each of the reflection surfaces 40 and 40a has been subjected to a surface treatment that increases the light reflection efficiency. Specifically, for example, a mirror finish may be applied or a white paint may be applied.

  As shown in FIG. 2, a power storage unit 13 is provided inside the lower center portion of the light emitting surface 12 of the casing 11. As shown in FIG. 1, the power storage unit 13 is a space having a fan-shaped cross section similar to that of the mounting unit 14 described below. In addition, a cord reel for a hand lamp is stored.

  Here, the control unit 61 executes various lighting controls for the upper irradiation light source 20 and the lower irradiation light source 30. Specifically, the control unit 61 includes a CPU (central processing unit) that performs a central function of control, a ROM that stores programs executed by the CPU and various fixed data, and temporarily executes the programs. It is constituted by a circuit having a RAM or the like for storing necessary data as a main part. In addition to turning on and off the upper irradiation light source 20 and the lower irradiation light source 30, the control unit 61 can adjust the brightness at the time of lighting steplessly. As a specific dimming method, generally known current dimming or PWM dimming may be used.

  Further, in the casing 11, attachment portions 14 are provided on both sides of the power storage portion 13 for detachably storing the hand lamp 50 including the downward irradiation light source 30. Each attachment portion 14 is open as an entrance / exit of the hand lamp 50 at one end side facing the side. The inside of the mounting portion 14 is a fan-shaped cross-sectional space that matches the cross-sectional shape of the hand lamp 50, and when the hand lamp 50 is housed in the mounting portion 14, the downward irradiation light source 30 of the hand lamp 50 is arranged as described above. It is set to be positioned in the light direction.

  As shown in FIGS. 9 to 14, the hand lamp 50 includes a light source case portion 51 having a length matching the entire length of the mounting portion 14, and a columnar shape extending a predetermined length from one end side of the light source case portion 51. The gripping part 52 is comprised. As shown in FIG. 1, the light source case 51 is formed in a sector cross-sectional shape, and a mounting surface 53 for attaching the substrate 31 of the light source for downward irradiation 30 is provided inside the top of the sector. Further, the arc-shaped outer wall portion 54 of the light source case portion 51 is formed of a translucent resin material in the same manner as the light emitting surface 12 of the casing 11.

  The hand lamp 50 is connected to the casing 11 side via a power cord (not shown). Such a power cord is configured to be able to automatically wind up the portion drawn by the cord reel stored in the power storage unit 13. Although the illustration of the cord reel is also omitted, a detailed description thereof is omitted because the configuration is also common.

  As shown in FIG. 1, in the casing 11, the obliquely inclined upper surface side of the attachment portion 14 serves as a support base 15 for attaching the fixing portion 42 of the reflection member 41. The support base 15 is provided with a fitting groove 16 in which a fitting protrusion 45 provided on the back side of the fixing portion 42 is slidably engaged. Further, on the inner surface side of the light emitting surface 12 where the upper end edge of the main reflecting plate 43 of the reflecting member 41 contacts, a fitted groove 17 is provided in which the upper end edge of the main reflecting plate 43 is slidably engaged. It has been.

  As shown in FIG. 2, detachable caps 18 are provided at the openings at both ends of the casing 11, and the reflection member 41 and the upper irradiation light source are provided inside the opening of the casing 11 with the caps 18 removed. 20 can be inserted. The reflecting member 41 can be positioned and attached by engaging the upper edge of the main reflecting plate 43 and the fitting protrusion 45 with the fitting grooves 16 and 17 on the casing 11 side, respectively, and the light source for upward irradiation 20 is set to be positioned in the light distribution direction described above.

Next, the operation of the illumination device 10 will be described.
As shown in FIG. 16, the present lighting device 10 is used as illumination for an inspection pit A in a railway vehicle base, and illuminates the work surface during vehicle inspection work and ensures safety. As a specific installation location of the illuminating device 10, as shown in FIG. 16A, when the rail C is laid on the rail B, it may be installed inside the rail B, or FIG. As shown in 16 (b), it may be installed in a mounting groove provided along the upper part of both side walls in the inspection pit A. As shown in FIG. 17, a plurality of lighting devices 10 are installed so as to be arranged at equal intervals on the same straight line.

  Regardless of the installation location, the height position of the lighting device 10 is substantially the same as the position of the operator's line of sight in the inspection pit A, but it is dazzling like the light distribution of a fluorescent lamp used as conventional pit lighting. The thickness is reduced. In other words, according to the present lighting device 10, light distribution control in which the upper part is widely irradiated with indirect light and the lower part is brightly irradiated with direct light, reduces glare to the worker, and efficiently irradiates the vehicle bottom and feet. Thus, efficient illumination that is impossible with conventional fluorescent lamps becomes possible.

  Specifically, as shown in FIG. 1, the lighting device 10 emits light in different directions above and below the light emitting surface 12 on the front side of the casing 11 in the normal installation state. That is, in the casing 11, the direct light from the upper illumination light source 20 is reflected by the reflecting surface 40 without intersecting the light emitting surface 12, and the reflected indirect light is directed at least obliquely upward from the light emitting surface 12. Are emitted. In the casing 11, the direct light from the downward irradiation light source 30 crosses the light emitting surface 12 and is emitted obliquely downward from the light emitting surface 12 as it is.

  By such light distribution control of the illuminating device 10, it is possible to irradiate light in two vertically asymmetrical directions in which the upper part is indirect light and the lower part is direct light. Therefore, indirect light is applied to the position of the operator's line of sight or the bottom of the vehicle in the inspection pit A, and direct light is applied to the floor of the inspection pit A or the operator's feet. It is possible to reduce glare to the worker when illuminating the vehicle, efficiently irradiate the bottom surface of the vehicle and the feet, and assist the safety and speed of work.

  In the present illumination device 10, by using the LED chips 22 and 32 as the upper irradiation light source 20 and the lower irradiation light source 30, not only the optimal light distribution control can be easily realized but also the desired brightness. Can be obtained with low power consumption, the entire apparatus can be downsized compared to a fluorescent lamp, and can be freely designed according to the installation location and the shape of the casing 11. Also, since LEDs have a longer life than fluorescent lamps, they do not need to be replaced frequently.

  In the present embodiment, the upper irradiation light source 20 and the lower irradiation light source 30 are each composed of the light sources having the same structure, so that the parts can be shared and the cost can be reduced. Further, the reflection surface 40 has a relatively large area, and the irradiation range of the indirect light reflected from the direct light from the upper irradiation light source 20 is set to be larger than the irradiation range of the direct light from the lower irradiation light source 30. Expanding. Thereby, it is possible to further reduce glare with respect to upward irradiation, and to illuminate a wide range.

  Further, the downward irradiation light source 30 is included in a hand lamp 50 that is detachable from the casing 11. The casing 11 has an attachment portion 14 for detachably storing the hand lamp 50 at a predetermined position. In the state where the hand lamp 50 is housed in the mounting portion 14 of the casing 11, the downward irradiation light source 30 included in the hand lamp 50 directs the direct light obliquely downward from the light emitting surface 12 as described above. To be emitted.

  In the inspection pit A, there is a necessary illuminance depending on the work content, and usually about 100 to 200 lux is generally sufficient, but depending on the work content, a higher illuminance may be required locally. Therefore, the hand lamp 50 can be detached from the casing 11 and freely held by a hand to irradiate a specific portion freely. Thereby, it is not necessary to prepare an auxiliary light separately from the illumination device 10, and appropriate illumination with higher efficiency can be realized.

  The hand lamp 50 is connected to the casing 11 side via a power cord. Thereby, even if the hand lamp 50 is removed, it is in a state of being connected to the casing 11 by wire, and it can be prevented that the hand lamp 50 is lost or misplaced elsewhere. The power cord is configured so that it can be automatically wound up when it is pulled out by a cord reel or the like.

  Further, in the present embodiment, the casing 11 of the lighting device 10 has a long unit shape extending in both directions, and the upper irradiation light source 20, the reflection surface 40, and the lower irradiation light source 30 are also the casing. 11 is a shape extending along both side directions. Thereby, by arranging each unit so as to be continuous in the longitudinal direction, it is suitable for use as a wide range of illumination extending in the longitudinal direction. In addition, since the casing 11 and the hand lamp 50 are formed of an insulating resin material, the casing 11 and the hand lamp 50 are not only provided with an insulating property, but also have an excellent impact resistance depending on the choice of waterproofing and material, and can be formed into a free shape. It becomes possible to mold. Here, examples of the material excellent in impact resistance include polycarbonate.

  Further, according to the present illumination device 10, the control unit 61 that turns on the upper irradiation light source 20 and the lower irradiation light source 30 is provided. The control unit 61 includes the upper irradiation light source 20 and the lower irradiation light source 30. In addition to turning on and off, the brightness at lighting can be adjusted steplessly. As a result, in addition to the above-described structural light distribution control, more various light distribution controls can be performed electrically. As another control, for example, the control unit 61 performs control so that only the lighting device 10 in the vicinity of the worker is selected and turned on according to the detection output from the human sensor provided in the inspection pit A. May be.

  Further, according to the output from the sensor that detects the presence or absence of the vehicle on the rail C, for example, when there is a vehicle, the control unit 61 turns on both the upper irradiation light source 20 and the lower irradiation light source 30. On the other hand, when there is no vehicle, it may be controlled to turn on only the light source 30 for downward irradiation.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to the above-described embodiments, and there are changes and additions within the scope not departing from the gist of the present invention. Are also included in the present invention. For example, although the example which installed the illuminating device 10 in the inspection pit of a railway vehicle base was demonstrated, you may install in the inspection pit in other facilities, such as a motor vehicle and an elevator. Of course, the application is not limited to the illumination of the inspection pit. Further, the specific shapes of the casing 11 and the reflecting surface 40 are not limited to the illustrated examples.

  The lighting device according to the present invention can be widely used for lighting for inspection pits at railway vehicle bases.

A ... Inspection pit B ... Rail C ... Rail 10 ... Illumination device 11 ... Casing 12 ... Light exit surface 13 ... Power supply storage part 14 ... Mounting part 15 ... Support base 16 ... Mated groove 17 ... Mated groove 20 ... Upper Irradiation light source 21 ... Substrate 22 ... LED chip 30 ... Lower irradiation light source 31 ... Substrate 32 ... LED chip 40 ... Reflection surface 40a ... Reflection surface 41 ... Reflection member 42 ... Fixing part 43 ... Main reflection plate 44 ... Sub-reflection plate 45 ... Fitting protrusion 50 ... Hand lamp 51 ... Light source case part 52 ... Holding part 61 ... Control part 62 ... Power supply

Claims (9)

In an illuminating device that can irradiate light in different upper and lower directions, and has a light source for upper irradiation, a light source for lower irradiation, and a casing that houses these light sources,
Forming a light exit surface on the front side of the casing;
In the casing,
Containing the substrates of the upper irradiation light source and the lower irradiation light source so as to intersect the depth direction orthogonal to the both side directions of the casing;
The upper illumination light source is accommodated in a position where the optical axis does not intersect the light exit surface, and the direct light from the upper illumination light source is reflected, and the reflected indirect light is at least oblique from the light exit surface. Provide a reflective surface that emits upward,
In addition, the light source for downward irradiation is housed in a position where its optical axis intersects the light exit surface and direct light from the light source for downward illumination is emitted obliquely downward from the light exit surface. A lighting device. The upper irradiation light source and the lower irradiation light source are each composed of a light source having the same structure,
The said reflecting surface expands the irradiation range of the indirect light which reflected the direct light from the said light source for upper irradiation from the irradiation range of the direct light from the said light source for lower irradiation, It is characterized by the above-mentioned. The lighting device according to 1. The downward irradiation light source is included in a hand lamp that is detachable from the casing,
The lighting device according to claim 1, wherein the casing has a mounting portion for detachably storing the hand lamp at a predetermined position.   The lighting device according to claim 3, wherein the hand lamp is connected to the casing side via a power cord. The casing has a long unit shape extending in both directions,
5. The illumination according to claim 1, wherein the upper illuminating light source, the reflecting surface, and the lower illuminating light source also have shapes extending along both sides of the casing. apparatus. Said top illumination light source, the lower the irradiation light source, the illumination apparatus according to claim 1, 2, 3, 4 or 5, characterized in that is obtained by arranging a plurality of LED in each of the substrate .   The lighting device according to claim 1, 2, 3, 4, 5, or 6, wherein the casing is formed of a resin material having an insulating property. A control unit for turning on the light source for upper irradiation and the light source for lower irradiation,
The said control part can adjust the brightness at the time of lighting besides the lighting of the said upper irradiation light source and the said lower irradiation light source, and the lighting at the time of lighting. Or the illuminating device of 7. The lighting device illuminates the work surface at the time of vehicle inspection work in an inspection pit provided under the floor of the railway vehicle base, and ensures safety.
The casing is installed on a pair of rails laid along both side walls of the opening cross section in the inspection pit, or above both side walls,
The upper illumination light source indirectly illuminates the bottom of the vehicle on the pair of rails or the position of the line of sight of the operator who performs the inspection work in the inspection pit,
9. The light source for downward irradiation directly irradiates a floor surface in the inspection pit or a worker's foot, according to claim 1, 2, 3, 4, 5, 6, 7 or 8. Lighting device.

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