JP2007026720A - Lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting device which can give sufficient lighting in a space beneath the shelf, permit unrestricted change of a lighting position beneath the shelf, and protect a light emitting diode. <P>SOLUTION: A lighting device 1 illuminates a space underneath an iron shelf plate 31 with a light emitted from many light emitting diodes 15a. The light emitting diodes 15a are lined up in a longitudinal direction at the bottom side of a central plate 3 on a main lighting device body 2 which has a U-shaped cross section and extends to a longitudinal direction, and a thin plate magnet 13 is attached to a top surface 3a on the central plate 3. This ensures sufficient illuminance while allowing the light emitting diodes 15a to be shifted to any positions on the iron shelf plate for attachment. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an illuminating device that illuminates a portion directly below a shelf board by light emission of a plurality of light emitting diodes.

  2. Description of the Related Art In recent years, a lighting device using a plurality of light emitting diodes has been known as a lighting device that illuminates a portion directly below a shelf (see, for example, Patent Document 1). This conventional lighting device is exemplified by a dowel for holding a shelf formed of a transparent or translucent synthetic resin and a light emitting diode embedded therein, or a light emitting diode embedded on the bottom side of a shelf plate. ing. This makes it possible to illuminate a space under the shelf that tends to be dark, and is convenient for taking in and out articles stored in the shelf.

JP 2001-250420 A (FIGS. 2 and 3)

  However, in Patent Document 1, the light emitting diodes embedded in the dowels are limited in the number of dowels and the dowels themselves are at the end of the shelf, so there is a possibility that sufficient illumination cannot be provided in the space under the shelf. In addition, light emitting diodes embedded under the shelf have no flexibility in changing the illumination position under the shelf, and the bottom surface of the shelf and the lower part of the light emitting diode are on the same plane. There was also a risk of contact with the diode.

  The present invention has been made paying attention to such problems, and can sufficiently illuminate the space under the shelf, can freely change the illumination position under the shelf, and can protect the light emitting diode. An object of the present invention is to provide a simple lighting device.

In order to solve the above-mentioned problem, the illumination device according to claim 1 of the present invention is an illumination device that illuminates an iron shelf board directly by light emission of a plurality of light-emitting diodes, and the light-emitting diodes are arranged in a longitudinal direction. The illuminating device main body extends in a U-shaped cross section and is arranged in the longitudinal direction below or below the central plate-like portion, and a thin plate-like magnet is attached to the upper surface of the central plate-like portion.
According to this feature, since a plurality of light emitting diodes are arranged below or below the central plate-like portion of the lighting device body, sufficient illuminance is obtained, and a thin plate-like magnet is attached to the upper surface of the central plate-like portion of the lighting device body. However, there is no adverse effect on the light source, and since the magnet is used, the lighting device can be mounted by moving it to any position on the iron shelf, and the lighting device body has a U-shaped cross section. Therefore, it is possible to protect a plurality of light emitting diodes on the lower surface or below the central plate-like portion.

A lighting device according to a second aspect of the present invention is the lighting device according to the first aspect, wherein a groove portion facing in a longitudinal direction is formed in the upper surface of the central plate-shaped portion, and the magnet is arranged in the groove portion in the center. It is characterized by being attached by slightly protruding from the upper surface of the plate-like portion.
According to this feature, since the magnet is attached to the groove in a state of slightly projecting from the upper surface of the central plate-like portion, the thickness of the lighting device can be reduced, and the lighting device body is placed directly under the shelf plate. When it is attached via, the space under the shelf can be used effectively.

A lighting device according to a third aspect of the present invention is the lighting device according to the first or second aspect, wherein the plurality of light emitting diodes are attached to a plate-like wiring board, and the wiring board is formed in the central plate shape. It is characterized by being fixed to the lower surface of the part.
According to this feature, by attaching the light emitting diodes to the plate-like wiring board, the light emitting diodes can be attached together with the wiring to the lighting device body, and the assembly is facilitated.

A lighting device according to a fourth aspect of the present invention is the lighting device according to any one of the first to third aspects, wherein the free end portions on both sides extending downward from the central plate-shaped portion are short in the short direction. It is characterized in that a handle portion that protrudes from is formed.
According to this feature, when removing the lighting device attached to the lower surface of the shelf board, it can be easily removed simply by placing the fingertips on the hand-holding portions on both sides.

A lighting device according to a fifth aspect of the present invention is the lighting device according to any one of the first to fourth aspects, wherein a plurality of longitudinally facing outer surfaces of both side portions extending downward from the central plate-like portion are provided. It is characterized in that a groove is provided.
According to this feature, when attaching or removing the lighting device attached to the bottom surface of the shelf board, fingers can be hung on the plurality of grooves provided on the outer surface of both sides, so that the work can be done without slipping. In addition, since the contact area between the outer surface of both sides and air is expanded by a plurality of grooves, even if the brightness of the light emitting diode is high, the groove shape on both sides serves as a radiation fin. The effect of dissipating the heat of the outside is demonstrated.

A lighting device according to a sixth aspect of the present invention is the lighting device according to any one of the first to fifth aspects, wherein left and right end surfaces of the lighting device main body are covered with side end members, and a lower surface is a translucent plate. It is characterized by being covered with.
According to this feature, it is possible to concentrate the illumination light under the shelf by covering the left and right end surfaces of the U-shaped illuminating device main body with the side end members, and the light emission in the interior together with the translucent plate on the lower surface The diode can be completely covered from the outside.

  Examples of the present invention will be described below.

  FIG. 1 is a perspective view showing an overall image of a lighting device in an embodiment of the present invention, FIG. 2 is a perspective view showing an example of use of the lighting device, and FIG. 3 is an exploded perspective view of the lighting device. 4 is a side sectional view showing attachment of the magnet to the lighting device body, FIG. 5 is a side sectional view of the lighting device, and FIG. 6 is a side sectional view showing attachment and removal of the lighting device. It is.

  As shown in FIG. 1, a lighting device 1 includes a horizontally long lighting device body 2 extended in the longitudinal direction by extrusion molding of aluminum, and side end members 12 and 12 made of aluminum or hard resin at both ends in the longitudinal direction. Are further provided, and a light-transmitting plastic thin plate-like light-transmitting plate 10 is provided on the lower surface portion. In the description of this embodiment, the following description will be made with the longitudinal direction of the lighting device 1 as the left-right direction, the back side of the lighting device 1 as the front, and the front side as the back.

  A plurality of light emitting diodes (hereinafter referred to as LEDs 15a) are provided along the longitudinal direction inside the lighting device 1, and the LED 15a is operated by operating an ON / OFF switching button 16a provided on the right side of the translucent plate 10. It can be turned on and off, and can be illuminated downward by the light emission of the plurality of LEDs 15a. The light emission power of these LEDs 15a is fed from the outside by a cord 18 drawn in from the right side end member 12.

  As shown in FIG. 2, the lighting device 1 is mounted along the left and right longitudinal directions of the shelf 31 at the front and rear center positions of the lower surface of the iron shelf 31 installed on the top of the desk 30. As described above, the lighting device 1 is attached to the lower surface of the shelf board 31 to illuminate the under-shelf space that tends to be dark without disturbing the use of the books and the storage box 32 installed on the upper surface of the shelf board 31. it can.

  Therefore, for example, when the desk work is performed on the desk 30 using the personal computer 32 or the like, the work can be comfortably performed. In addition, as a characteristic of the LED 15a, it is excellent in power saving and has a long life as compared with a lighting device using a conventionally known fluorescent lamp. In addition, the attachment structure to the shelf board 31 of the illuminating device 1 is demonstrated later.

  The lighting device 1 will be described in detail with reference to FIGS. First, as shown in FIG. 3, the illuminating device main body 2 has a U-shaped cross-section and extends in the left-right longitudinal direction, and a groove portion 3 a is formed at the front and rear intermediate position of the upper central plate-like portion 3. It is recessed toward the direction. A thin plate-like magnet 13 extending in the longitudinal direction can be attached to the groove 3a from above.

  The lighting device main body 2 will be described in detail. As shown in FIG. 4, an adhesive surface 13a is previously formed on the lower surface of the magnet 13 with a double-sided tape or adhesive having adhesive strength, and is formed flat. It is attached to the groove 3a. In attaching the magnet 13, the attachment surface 13 b is attached to the groove portion 3 a in a state of slightly protruding from the upper surface of the central plate-like portion 3.

  A flat lower surface 3b is formed on the back surface of the central plate-like portion 3, and serves as a mounting surface for a wiring board 14 to be described later. Upper and lower edges 4c and 4c projecting in the lateral direction are formed on the front and rear sides of the central plate-shaped portion 3, and side portions 4 and 4 extend downward from the upper edge 4c and 4c. And from the free end part of the side parts 4 and 4, the hook parts 4b and 4b which protrude in a transversal direction are formed.

  A plurality of upper and lower grooves 4a are formed in the longitudinal direction between upper and lower edges 4c and 4c of the outer surfaces of the side portions 4 and 4 and the handle portions 4b and 4b. On the inner side surfaces 6 and 6 inside the lighting device main body 2, upper grooves 6a and 6a are formed in the upper part in the longitudinal direction, and lower grooves 6b and 6b are formed in the lower part in the longitudinal direction.

  As shown in FIG. 3, an outer peripheral edge 12b is projected on the inner surface side of the side end members 12 and 12 located on the left and right end surfaces 7 and 7 side of the lighting device body 2, and a recessed surface 12d is formed in the center. Has been. A pair of fitting pieces 12a project from the two positions before and after the upper end of the recessed surface 12d toward the illuminating device main body 2 and can be fitted into the pair of upper grooves 6a of the illuminating device main body 2, respectively.

  The wiring board 14 is formed of a rectangular thin plate extending in the left-right direction, and the illumination unit 15 including the LEDs 15a is provided in a straight line at predetermined intervals along the longitudinal direction at the front-rear intermediate position. The LED 15a is formed by covering a light source body with a transparent synthetic resin material. An operation unit 16 having a button 16a that can be pressed upward is provided on the right side of the wiring board 14, and a control unit 17 that controls the plurality of illumination units 15 is provided on the left side.

  These members (15, 16, 17) are connected by a cord 18 and an internal connection wiring 19. The control unit 17 has a converter function for converting AC power from the cord 18 into DC, controls the illuminance and color of the LED 15a, and controls the LED 15a based on the ON / OFF signal from the operation unit 16 by operating the button 16a. It has functions.

  Next, the translucent plate 10 will be described. The translucent plate 10 of this embodiment is made of a translucent plastic resin material, and is formed of a rectangular thin plate extending in the left-right direction. Stepped end portions 10a and 10a are formed on the front and rear edges of the light transmitting plate 10, and an intermediate portion is a light transmitting portion 10b that can transmit the light of the LED 15a. A button hole 10c penetrating vertically is formed on the right side of the translucent part 10b, and a part of the lower part of the button 16a can protrude downward when the translucent plate 10 is attached to the illuminating device body 2.

  Therefore, the attachment of the side end members 12, 12, the wiring board 14, and the translucent plate 10 to the illuminating device body 2 will be described with reference to FIGS. 3 and 5. First, the upper surface or the central plate-like portion 3 of the wiring board 14. Although not particularly shown, a double-sided tape or adhesive having adhesive strength is applied in advance to the lower surface 3b of the circuit board, and the upper surface of the wiring board 14 is attached only by pressing it against the lower surface 3b. As described above, since the plurality of LEDs 15a are integrally disposed on the wiring board 14 and fixed to the lower surface 3b of the central plate-like portion 3, the LEDs 15a can be attached together with the wiring to the lighting device body 2 and can be easily assembled. It becomes.

  Then, the both ends 10a and 10a of the translucent plate 10 are slid and moved to the front and rear lower grooves 6b and 6b from the left and right end surfaces 7 and 7 side of the illuminating device main body 2 to thereby transmit the translucent plate 10. Are guided and mounted in the longitudinal direction. When the translucent plate 10 is attached, the button 16a is temporarily removed from the operation unit 16, so that the collision between the button 16a and the translucent plate 10 can be avoided when the translucent plate 10 slides. At the same time, after the translucent plate 10 is attached, the operation unit 16 can be simply attached simply by inserting the button 16a again from below through the button hole 10c.

  And it inserts and fixes by inserting the insertion pieces 12a and 12a of the side end members 12 and 12 arrange | positioned at the right and left of the illuminating device main body 2 in the upper groove 6a and 6a, and the outer periphery 12b and 12b are the end surfaces 7, 7, the attachment of the side end members 12, 12 is completed. At this time, the left and right ends of the translucent plate 10 are held by the lower outer peripheral edge 12b to prevent wobbling in the left-right direction.

  In the case of a fluorescent lamp generally used as a lighting device, it is known that if a magnet is brought close to the fluorescent lamp, the light source of the fluorescent lamp is adversely affected. However, as in this embodiment, the LED 15a is placed near the magnet 13. When arranged, there is no adverse effect on the magnetic force by the magnet 13.

  In the illuminating device 1 configured as described above, since the plurality of LEDs 15a emit light all at once by the operation of the button 16a as shown in FIG. 5, sufficient illuminance can be obtained and the central plate of the illuminating device body 2 can be obtained. Even if the thin plate-like magnet 13 is attached to the upper surface of the shaped portion 3, no adverse effect is exerted on the light source. Further, since the LED 15a has a more compact configuration than the conventional fluorescent lamp, a plurality of LEDs 15a can be accommodated to increase the illuminance and to realize space saving.

  The front and back of the illuminating device main body 2 that is downwardly U-shaped when viewed from the side are covered with the side portions 4 and 4, the left and right end surfaces 7 and 7 are covered with the side end members 12 and 12, and the lower portion is the translucent plate 10. Therefore, the illumination light of the LED 15a can be concentrated under the shelf of the shelf plate 31 (see FIG. 2), and sufficient illumination can be provided in the space under the shelf. Further, since the LED 15a inside can be completely covered from the outside by the translucent plate 10, the LED 15a can be protected against an impact from the outside, and entry of dust, dust and the like can be prevented.

  Furthermore, since the contact area between the outer surface of the side portions 4 and 4 and the air is expanded by the plurality of grooves 4a and 4a provided on the side portions 4 and 4, the brightness of the LED 15a is high. In addition, the groove shapes (4a, 4a) of the side portions 4, 4 serve as heat radiation fins and exhibit the effect of radiating the heat of the LED 15a to the outside.

  Next, as shown in FIG. 6, attachment and detachment of the lighting device 1 to the shelf 31 will be described. First, the lighting device 1 can be attached by simply placing a finger on the grooves 4a and 4a on the front and rear side portions 4 of the lighting device body 2 and lifting it up with one hand, with the mounting surface 13b of the magnet 13 as the upper surface. By simply bringing it close to the lower surface position of the shelf plate 31, it can be easily attached by magnetic force.

  In addition, since the sliding is prevented by the plurality of front and rear grooves 4a, 4a, the mounting operation can be performed reliably. Further, upper and lower edges 4c and 4c and handle portions 4b and 4b projecting in the short direction are formed at the upper and lower positions of the grooves 4a and 4a, so that the positions of the grooves 4a and 4a, which are finger gripping positions, are front and rear. Therefore, easy removal from the sides 4 and 4 of the finger is prevented. Moreover, since LED15a is lightweight, even if it uses two or more like a present Example, a big load (weight) is not given to the illuminating device main body 2. FIG.

  Thus, by using the magnet 13, the lighting device 1 can be moved and attached to an arbitrary position on the iron shelf 31, and only the lighting device main body 2 having a U-shaped cross section is held and moved by a finger. By doing so, the translucent plate 10 and the plurality of LEDs 15a are not damaged, and the malfunction due to the contact of the button 16a does not occur.

  Moreover, since the magnet 13 slightly protrudes from the upper surface of the central plate-shaped portion 3, when the lighting device 1 is attached to the shelf plate 31, the lower surface of the shelf plate 31 and the attachment surface 13 b of the magnet 13 are in the center. It is in close contact with the upper surface of the plate-like portion 3 and does not weaken the connection strength. Further, by using the LED 15a as a light source, the lighting device 1 has a thin design without causing the thickness of the lighting device 1 to be as high as possible, and has a configuration that does not protrude as much as possible below the shelf 31 (see FIG. 2). The space can be used effectively, and the user who uses the desk 30 is not given a feeling of pressure.

  Next, in order to remove the illuminating device 1 from the shelf plate 31, it is possible to place the finger on the groove 4 a of the front and rear side portion 4 and hold it with one hand as in the case of attaching the illuminating device 1 described above, and the grooves 4 a and 4 a. Thus, in a state in which the fingertip is prevented from slipping, it can be detached from the shelf board 31 by pulling it strongly against the magnetic force of the magnet 13.

  Moreover, when the pull-down operation is performed, the hook portions 4b and 4b protruding in the short direction from the side portions 4 and 4 are formed in the front and rear, so that the finger is caught and the lighting device 1 is directed downward (in the removal direction). Thus, it can be pulled more strongly and can be removed easily and reliably.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are also included in the present invention. For example, in the above-described embodiment, it is preferable that the plurality of grooves 4a and 4a are formed in the both side portions 4 and 4 of the lighting device body 2 to prevent the finger from slipping when the lighting device 1 is attached or detached. In another embodiment, the grooves 4a and 4a may not be formed, and a fine uneven friction surface may be formed on the outer surface of the both side portions 4 and 4 to prevent finger slipping.

  Moreover, in the said Example, since the illumination part 15 provided with LED15a was provided in the wiring board 14 integrally, it is preferable from being easy to attach to the lower surface 3b of the center plate-shaped part 3, but attachment of LED15a of this invention The position is not limited as long as the LED 15a does not block light emission and can be reliably illuminated toward the bottom of the shelf. For example, the LED 15a may be provided below the lower surface 3b of the central plate-shaped portion 3.

  Moreover, in the said Example, although several LED15a is arrange | positioned in a straight line form along the longitudinal direction of the illuminating device main body 2, this invention is not limited to this, The straight LED15a is front and back. A plurality of them may be arranged in parallel to increase the illumination intensity.

It is a perspective view which shows the whole image of the illuminating device in the Example of this invention. It is a perspective view which shows the usage example of an illuminating device. It is an exploded assembly perspective view of an illuminating device. It is a sectional side view which shows attachment of the magnet to an illuminating device main body. It is a sectional side view of an illuminating device. It is a sectional side view which shows attachment and removal of an illuminating device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Illuminating device main body 3 Central plate-shaped part 3a Groove part 3b Lower surface 3c Groove 4 Side part 4a Multiple groove 4b Handle part 4c Upper end edge 6 Inner side surface 6a Upper groove 6b Lower groove 7 End surface 10 Translucent plate 10a End Part 10b Translucent part 10c Button hole 12 Side end member 12a Insertion piece 12b Outer peripheral edge 12c Code hole 12d Concave surface 13 Thin plate-like magnet 13a Adhesive surface 13b Mounting surface 14 Wiring board 15 Illumination unit 15a LED (light emitting diode)
16 Operation part 16a Button 17 Control part 18 Code 19 Connection wiring 30 Desk 31 Iron shelf board 32 Placements, such as a personal computer and stationery

Claims (6)

  An illuminating device that illuminates an iron shelf directly under light emitted from a plurality of light emitting diodes, the light emitting diodes extending in the longitudinal direction below or below the central plate portion of the illuminating device body having a U-shaped cross section extending in the longitudinal direction An illuminating device, characterized in that a thin plate-like magnet is attached to the upper surface of the central plate-like portion.   The lighting device according to claim 1, wherein a groove portion extending in a longitudinal direction is provided on the upper surface of the central plate-shaped portion, and the magnet is attached to the groove portion so as to slightly protrude from the upper surface of the central plate-shaped portion.   The lighting device according to claim 1, wherein the plurality of light emitting diodes are attached to a plate-like wiring board, and the wiring board is fixed to a lower surface of the central plate-like portion.   The lighting device according to any one of claims 1 to 3, wherein a handle portion protruding in a short direction is formed at a free end portion of both side portions extending downward from the central plate-like portion.   The lighting device according to any one of claims 1 to 4, wherein a plurality of grooves directed in a longitudinal direction are provided on outer surfaces of both side portions extending downward from the central plate-like portion.   The lighting device according to claim 1, wherein left and right end surfaces of the lighting device main body are covered with side end members, and a lower surface is covered with a translucent plate.

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