JP2548104Y2 - Lighting device for desk - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial applications] This invention is a lighting bureau,
The present invention relates to a structure of a lighting device in a learning desk or the like.

[0002]

2. Description of the Related Art In a conventional lighting device for a lighting bureau, a learning desk or the like, a long synthetic resin is provided in front of the light source so as to prevent the light from the light source from directly entering the eyes. A unit cover is provided.

[0003]

However, in the conventional lighting device, since a thin long front cover formed of a synthetic resin is used, it is difficult to assemble due to twisting, and the strength is low. It was weak. In particular, in order to adjust the light so that the front cover is rotatable by grasping the front cover, or to grasp the front cover and make the entire lighting device movable back and forth, There has been a problem that twisting becomes a neck and rattling occurs on the left and right, so that the operation cannot be performed well.

Therefore, the present invention can provide a front cover having excellent strength against torsion, and accordingly, the front cover can be made rotatable or the entire lighting device can be moved back and forth. Also in this case, an object of the present invention is to provide a lighting device for a desk which can be smoothly performed without rattling on the left and right and can perform efficient lighting.

[0005]

In order to achieve the above-mentioned object, a reflecting plate which is entirely curved outward is attached to the inner surface of a long front cover which regulates light from a light source. It is characterized by the following.

[0006]

As described above, according to the lighting device for a desk of the present invention, a structure in which a reflecting plate whose entire surface is curved outward is attached to the inner surface of a long front cover that regulates light from a light source. Therefore, the reflection plate also serves as a reinforcing plate, and the entire front cover can be formed in a substantially pipe-like hollow state to have a strong structure. In addition, since the entire reflecting plate is curved outward, the light from the light source can be widely illuminated backward.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a side view of a lighting bureau having a lighting device mounted on a desk according to a representative embodiment of the present invention. FIGS. 2 to 11 relate to a lighting device A according to the representative embodiment. is there.

As shown in FIGS. 1 and 3, a lighting device A includes a pair of side frames 1, an illuminator frame 2, front reflectors 3a and 3b,
The front cover 4 and a pair of external caps 5 are main components, and the fluorescent lamps are arranged longitudinally below the shelf 8 provided via the left and right side plates 7 behind the tabletop 6 of the lighting bureau B. A moving means 10 for sliding the illuminator frame 2 having a lower surface, such as a light source 9, back and forth, and a front cover 4 provided to regulate light projected forward from the fluorescent lamp 9 of the illuminator frame 2 by a fixed angle A front cover adjusting means 11 capable of adjusting the rotation angle for each is provided so that each movement can be performed independently.

As shown in FIG. 2, the illuminator frame 2 has a side plate 13 extending vertically downward from the rear end of the upper plate 12 and a lower folded piece 14 having a U-shaped cross section extending at the tip. Further, a connecting plate 15 having an L-shaped cross section is extended from the front end of the upper plate 12 and the connecting plate 15
The upper folded piece 16 having a U-shaped cross section is formed integrally with a metal plate so as to extend obliquely downward from the side plate.
17 is fixed, and the fluorescent lamp 9 is provided on the lower surface of the upper plate 12. In the illustrated example, the connecting plate 15 and the upper folded piece 16
These form the upper reflector 3a.

As shown in FIG. 2, the side frame 1 has a partition plate 18 capable of holding the lower folded piece 14 of the illuminator frame 2 in order to fit and support the side end of the illuminator frame 2. A box-shaped portion 19 extending inwardly, a channel portion 21 opening outward to form a concave groove 20 on the outer surface, and a guide member described below extending from the front surface of the box-shaped portion 19, and the channel portion 21 Reinforcement frames 22 and 23 are provided on the upper and lower portions of the rear part, and a boss 26 for rotatably attaching the lower ends of the links 24 and 25 is protruded from the lower reinforcement frame 23, Further, a block 27 protruding inward is provided in the center of the rear part of the channel portion 21, and is integrally formed so that an inclined stop surface 27a which contacts the link 25 is formed on the lower surface thereof. Also, the groove 20
A stop surface 20 that contacts the front end of the rail member 28
a is provided.

The front cover 4 is provided with a bulging portion 30 so as to protrude forward from the center of a long plate-like body 29 curved inward.
The upper end is folded downward in a semicircular shape to form an upper portion 31, the lower portion is curved in a wavy shape, and the end portion is folded upward to form a lower portion 32.
b, a pair of support plates 33, 33 are arranged in parallel in the width direction so as to be able to sandwich the b, and the other is integrally formed of an opaque synthetic resin so that only the lower portion 32 becomes milky white. The transmission member 34 as a separate member is fitted to the center of the portion 30.

The outer cap 5 has a shape which can be fitted to the end of the front cover 4 and is open to the inside and the rear. A pivot shaft of a guide member to be described later is formed on the inner surface of the cap body 35. Along with the support cylinder 36 that can be inserted and pivoted,
A fixing projection having an insertion hole into which fixing bolts 37 can be screwed.
38, 38 are erected.

As shown in FIGS. 2 and 3, the front reflector 3b is large enough to be sandwiched between the support plates 33 of the front cover 4 and housed therein. A mounting plate 39a is provided at both ends of a metal plate 39 which is bent in the shape of "." When the front reflector 3b is attached to the inner surface of the front cover 4, the front reflector 3b, which is entirely curved outward, is attached to the front cover 4b.
FIG. 5 shows a state in which the screws 4a are fixed at several places from the back in a state of being positioned between the support plates 33, 33, or by simply utilizing the fitting force with the support plates 33, 33 without performing the screw fixing. As shown, it can be assembled in a substantially pipe-shaped hollow state. Note that the front reflector 3b is not limited to the above-described one, and may be one that is entirely curved outward in an arc shape as shown in FIG.

As shown in FIGS. 9 to 11, a moving means 10 pivotally connects a pair of left and right rail members 28, 28 for guiding the side frame 1 of the illuminator frame 2 slidably back and forth. A pair of left and right links 24, 25 worn, and the pair of links 24, 24
A connecting rod 40 for synchronizing the rotation, and a supporting portion 42 for supporting the roots 41, 41 of the links 24, 24 at both ends of the connecting rod 40 so as to be rotatable around an axis. Support in groove 20
Position the rail member 28 attached to 42, and link on both sides
The lower end of 25, 25 is pivotally attached to the boss 26, and the upper end of the root portion 41 of the link 24 into which the end of the connecting rod 40 is fitted, so that the illuminator frame 2 can be slid back and forth.
In this embodiment, the rail member 28 is formed integrally with the support portion 42 via the base body 43.

The front cover adjusting means 11 comprises an outer cap 3, a guide member 44 extending from the front end of the side frame 1, and a rotating member 45, as shown in FIG.

As shown in FIGS. 3 and 4, the guide member 44 is a substantially sector-shaped substrate located in the outer cap 5.
A guide piece 48 formed to have a plurality of engaging step portions 47 by alternately forming irregularities on the upper surface from the lower end of 46 extends a receiving piece 49 provided on the upper surface to extend inward, and from the end of the substrate 46 side A spider piece 50 is extended, a pivot piece 51 is further extended from the upper end of the substrate 46, and pivot shafts 52 are provided on both sides of the pivot piece 51.

As shown in FIG. 2, the pivoting member 45 has a blocking tongue 54 extending rearward from a side end of a pivoting plate 53 having a shape capable of closely adhering to the inside of the external cap 5. A pivot hole 56 through which the pivot shaft 52 of the guide member 44 is inserted is formed in the projecting portion 55, and through holes 57, 57 for fixing the mounting piece 39 of the front reflector 3b with bolts are formed. On the outer surface of the moving plate 53, fixed projections 58, 58 each having an insertion hole for screwing a fixing bolt 37 are provided upright at positions corresponding to the fixed projections 38, 38 of the external cap 5, and the guide section is provided at the center. An engaging member 60 elastically urged so that an engaging rod 59 engageable with the engaging step portion 47 of 48 protrudes is provided. The engaging member 60 includes an engaging rod 59 having a flange 62 in the middle of which a rear folded piece 61 is provided around the periphery as shown in FIG.
Engagement rods are inserted through insertion holes 64a and 64b formed on the upper and lower sides of the storage box 63.
59 are housed so that both ends protrude, and the engaging rod 59 is elastically urged in a direction protruding from the lower insertion port 64a with a coil spring 65 interposed between the flange 62 and the inner surface of the storage box 63. .

The illuminating device A includes a front reflector 3b on a pivot shaft 52 of the guide member 44 in the side frame 1 disposed on both sides.
Is inserted through a pivot mounting hole 56 of a rotating member 45 to which a bolt is fixed, and the tip of an engaging rod 59 of an engaging member 60 is
The guide member 44 is inserted into the support cylinder 36 of the external cap 5 while fitting both ends of the illuminator frame 2 to the side frame 1 and fitting the end of the front cover 4 into the external cap 5. Can be assembled with the front cover adjusting means 11 incorporated by inserting and attaching the pivot shaft 52 of the above, and screwing and fixing the mounting bolt 37. The lighting device A assembled in this manner is, as shown in FIG.
b is located in front of the fluorescent lamp 9, and the upper reflector 3a is located obliquely upward.

In the illuminating device A described above, the illuminator frame 2 having a lower surface is slid back and forth by a light source such as a fluorescent lamp 9 by a moving means 10 and attached to a lighting bureau B by a moving means 10. Fluorescent lamp 9 of casing 2
The front cover 4, which is provided to regulate the light projected from the front, can adjust the rotation angle by a certain angle. The lighting device A is fixed to the lighting bureau B, a desk, or the like. 4 may be fixed,
It is also possible to use it for the ordinary lighting device A. Furthermore, in the above-described lighting device A, the engaging member 60 is provided on the rotating member 45, and the guide member 44 extends from the front end of the side frame 1, but the mounting may be reversed. . Further, the moving means 10 and the front cover adjusting means 11 are not limited to those described above, and various known mechanisms can be adopted.

According to the lighting device A, when the user puts his hand on the lower part of the front cover 4 of the lighting device A located in the both side plates 7 and 7 in the lighting bureau B and turns it forward, As shown in FIG. 3 and FIG.
The engagement rod of the engagement member 60 in the guide portion 48 of the guide member 44
The front cover 4 and the outer cap 5 rotate around the pivot shaft 52 of the guide member 44 in the direction of the arrow in FIG. Since the front cover 4 is held at a fixed angle and the opening degree of the front cover 4 can be adjusted by engaging with the joint 47, the upper reflector 3a and the front reflector 3b in the front cover 4 can be adjusted. By adjusting the amount of light reflected by the light, the brightness of the tabletop 6 can be adjusted. For example, when the front cover 4 is opened to the maximum, as shown in FIG. 4, the front reflector 3b and the upper reflector 3a, which are entirely curved outward, allow the illuminator frame 2 to be opened. The light from the fluorescent lamp 9 can be reflected backward to illuminate the desk top plate 6 efficiently. Further, when the user holds the lower part of the front cover 4 of the illumination device A shown in FIG.
While being linked by the left and right links 24 and 25 connected by the arrow, the lighting device A is pulled forward along the rail member 28 to the position shown in FIG. 10, and the front of the tabletop 6 can be illuminated brightly. .

As described above, according to the illumination device A, as shown in FIG. 5, the front reflecting plate 3b, which is entirely curved rearward, is provided on the inner surface of the bulging portion 30 projecting forward of the front cover 4. By assembling with screws 4a from the front, the front reflector 3
b also serves as a reinforcing plate, and the entire front cover 4 can have a strong structure in a substantially pipe-like hollow state. Therefore, the front cover 4 is rotated by the front cover adjusting means 11 toward the front. When adjusting the opening degree of the front cover 4, the front cover 4 can be smoothly rotated with good balance between left and right without twisting the front cover 4. Similarly, when the fluorescent lamp 9 of the illuminator frame 2 is moved back and forth, the front cover 4 is not twisted, and the left and right rail members 28 are not twisted. 9 can be smoothly moved back and forth. Further, for example,
When the front cover 4 is opened to the maximum, as shown in FIG. 4, the front reflector 3b which is entirely curved outward.
As a result, as shown by the angle α in the figure, the light from the fluorescent lamp 9 of the illuminator frame 2 can be reflected backward to illuminate the tabletop plate 6 over a wide range, so that efficient illumination can be performed. You can.

[0022]

According to the lighting device for a desk according to the present invention, a structure in which a reflecting plate whose whole is curved outward is attached to the inner surface of a long front cover that regulates light from a light source. Therefore, the reflection plate also serves as a reinforcing plate, and the entire front cover can be formed in a substantially pipe-like hollow state to have a strong structure. Therefore, even when the front cover is configured to be rotatable or the entire lighting device is configured to be movable back and forth, since the entire front cover is not twisted, rattling may occur on the left and right. It can be done smoothly without any. In addition, since the reflecting plate has a structure in which the entire reflector is curved outward, light from the light source can be illuminated in a wide range toward the rear, and efficient desk lighting can be performed. .

[Brief description of the drawings]

FIG. 1 is a side view of a lighting bureau using a lighting device on a desk of a representative embodiment.

FIG. 2 is an exploded perspective view showing a main part of the lighting device in the desk.

FIG. 3 is a vertical sectional view of the lighting device in the desk.

FIG. 4 is a vertical cross-sectional view showing a main part of the lighting device of the desk showing a state where the front cover is also opened.

FIG. 5 is a perspective view of the front cover as viewed from the back.

FIG. 6 is a side view of a front reflector according to another embodiment.

FIG. 7 is an explanatory sectional view showing the movement of the front cover adjusting means.

FIG. 8 is a longitudinal sectional view of an engagement member.

FIG. 9 is an explanatory diagram showing a main part of a lighting bureau before the lighting device is pulled out of the desk.

FIG. 10 is an explanatory view showing a main part of the lighting bureau after the lighting device is pulled out from the desk.

FIG. 11 is an explanatory sectional view showing a main part of the moving means.

[Explanation of symbols]

Reference Signs List A Lighting device B Lighting bureau 1 Side frame 2 Illuminator frame 3 Reflector 4 Front cover 5 External cap 6 Top plate 7 Side plate 8 Shelf 9 Fluorescent lamp 10 Moving means 11 Front cover adjusting means 12 Top plate 13 Side plate 14 Lower folded piece 15 Connecting plate 16 Upper folded piece 17 Side plate 18 Partition plate 19 Box-shaped part 20 Concave groove 21 Channel part 22 Reinforcement frame 23 Reinforcement frame 24 Link 25 Link 26 Boss 27 Block 28 Rail member 29 Long body 30 Swelling part 31 Upper part 32 Lower part 33 Support plate 34 Transmissive member 35 Cap body 36 Support cylinder 37 Fixing bolt 38 Fixing protrusion 39 Plate 40 Connecting rod 41 Root 42 Support 43 Base 44 Guide member 45 Rotating member 46 Board 47 Engagement Step part 48 Guide part 49 Receiving piece 50 Stopper piece 51 Pivot piece 52 Pivot shaft 53 Rotating plate 54 Blocking tongue 55 Projection part 56 Pivot hole 57 Through hole 58 Fixed projection 59 Engagement rod 60 Engagement member 61 Rear Folded piece 62 Flange 63 Storage box 64 Insertion opening 65 Coil spring 66 Part cover rotation restricting means 67 abutting-stops projection 68 stopper piece 69 drawer recess

Claims (1)

(57) [Scope of request for utility model registration] 1. An illumination device for a desk, wherein a reflector that is entirely curved outward is attached to the inner surface of a long front cover that regulates light from a light source.