JPH0544967Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to the improvement of a lighting device on a desk shelf installed in a study desk. The present invention relates to a lighting device that creates lighting conditions.

[Conventional technology]

Conventionally, various types of lighting devices have been provided for desk shelves. For example, as disclosed in Japanese Utility Model Publication No. 58-25877, a lighting fixture equipped with a fluorescent lamp is attached to the underside of the shelf board of a desk shelf, and a lighting device equipped with a fluorescent lamp is installed behind the shelf. A lighting device is provided in which a lighting fixture equipped with an incandescent lamp is attached so that it can be slid laterally, and by installing a fluorescent lamp and an incandescent lamp together, it is possible to obtain light close to natural light (sunlight). It is limited to a small part of the desk top, and if you consider the entire desk top, there will be a large difference in brightness and shade, and if you use the entire desk top, you will feel uncomfortable. Incandescent lamps generate a lot of heat and consume a lot of power, making them difficult to use for long periods of time.

[The problem that the idea aims to solve]

In view of the above-mentioned situation, the present invention aims to solve the problem.Since people sometimes read, study, or work on the top of a study table, the lighting condition can be changed as appropriate depending on the usage mode. It has been desired to provide a lighting device that can be changed, and the present invention provides a desk top that can intensively illuminate one side of the desk top in the horizontal direction, and that can evenly diffuse and illuminate the entire surface of the desk top. The object of the present invention is to provide a lighting device for a shelf.

[Means for Solving the Problem] In order to solve the above-mentioned problem, the present invention installs a fixed lighting fixture equipped with a fluorescent lamp near one lateral end of the lower half of the shelf provided on the desk shelf, and also The guide means provided along the entire length of the lower half of the shelf board in the horizontal direction,
A movable lighting device equipped with a fluorescent lamp and having a hood having a reflective portion on at least the entire surface that can reflect light from the fluorescent lamp of the fixed lighting device onto the desk top plate can be moved laterally in relation to the supporting portion of the movable lighting device. A lighting device for a desk shelf is constructed.

[Effect]

The lighting device for the desk shelf of the present invention having the above-mentioned contents is different from the fixed lighting fixture equipped with a fluorescent lamp attached to one side in the horizontal direction of the lower half of the shelf board of the desk shelf. The position of the movable lighting fixture equipped with a fluorescent lamp is relatively changed in the lateral direction by moving a support part associated with a guide means provided along the entire length of the rear half in the lateral direction, along the guide means. When movable lighting fixtures are arranged behind fixed lighting fixtures, the light from the fluorescent lights of both lighting fixtures will be concentrated on one horizontal side of the desk top, and the fluorescent lights of the fixed lighting fixtures will The light emitted backwards from the movable lighting fixture is reflected onto the top plate by a reflective section installed in front of the hood, increasing the illuminance.Also, there is a movable lighting fixture on the opposite side to the side where the fixed lighting fixture is installed. When the fixtures are moved, the light from the fluorescent lights of both lighting fixtures is uniformly diffused and irradiated over the entire surface of the top plate.

〔Example〕

Next, the present invention will be further explained in detail based on the embodiments shown in the accompanying drawings.

FIG. 1 shows a typical embodiment of the lighting device for a desk shelf according to the present invention, where A indicates a desk and B indicates a desk shelf, respectively.

In the lighting device of the present invention, a fixed lighting fixture 3 is attached to one side in the lateral direction of the front half of the lower surface of a shelf board 2 provided on a desk shelf B installed at the rear of the top board 1 of a desk A, and A movable lighting fixture 4 is provided on the rear half of the lower surface of 2 so as to be movable in the lateral direction, and when the fixed lighting fixture 3 and the movable lighting fixture 4 are arranged front and back, the light emitted backward from the fixed lighting fixture 3 is The light is reflected from the front surface of the movable lighting fixture 4 onto the upper surface of the top plate 1.

The fixed lighting fixture 3 is located near one side of the front half of the lower surface of the shelf board 2, and in this embodiment, the sleeve drawer 5 provided on the desk A is set on the right side when viewed from the front, and the foot space 6 is set on the left side. In the case of a desk, a fluorescent lamp 8 is attached to holders 7, 7 placed below the left side of the shelf board 2, and if necessary, light from the fluorescent lamp 8 can be placed on the underside of the shelf board 2. A reflector plate 9 is installed to reflect the light. Furthermore, the front edge of the shelf board 2 is provided to prevent the light from the fluorescent lamp 8 from directly entering the user's eyes, and to prevent each member of the fixed lighting fixture 3 from being exposed and deteriorating the appearance. The front plate 10 is attached to prevent this.

The movable lighting fixture 4 is equipped with a fluorescent lamp 12 in a hood 11 having at least a front surface, and the front surface of the hood 11 reflects the light emitted from the fluorescent lamp 8 of the fixed lighting fixture 3 backward. Said top plate 1
A reflecting part 13 is formed to guide the light to the upper surface, and the total length is set to be two-thirds or more of the length of the fixed lighting fixture 3. A support part 14 protruding from the upper surface of the main body is provided on the lower half of the lower surface of the shelf board 2. Mounting base 1 formed over the entire horizontal length of the section.
It is attached so as to be movable in the lateral direction in relation to a guide means 16 provided over substantially the entire length of the lower surface of the holder 5. More specifically, as shown in FIG. 4, the support portion 14 is approximately T-shaped with projecting edges 17, 17 provided at the front and rear of the upper end, and both ends of the approximately U-shaped cross section shown as the guide means 16 are bent inward. It is slidably engaged with a guide rail having bent edges 18, 18 formed by bending. Note that the support portion 14 and the guide means 16 are not limited to the above-mentioned structure, and the guide means is a long hole opened in the mounting base 15, and a recess that is slidably engaged with the front and rear edges of the long hole is used as the guide means. It is also possible to form grooves at the front and rear of the support portion 14. Here, the downwardly protruding portion of the movable lighting fixture 4 is a handle 19 that is operated when moving the movable lighting fixture 4 in the lateral direction, but the shape is not limited to this, and the movable Since the main body of the lighting fixture 4 can be held and operated, there is no need to provide it in particular.

When the lighting device of the present invention is used to illuminate the upper surface of the top plate 1, the movable lighting device 4 is moved laterally and placed in parallel with the rear and lower part of the fixed lighting device 3, as shown in FIG. In the positioned state, as shown in FIG. 1, the light from the fluorescent lamp 8 of the fixed lighting fixture 3 and the fluorescent lamp 12 of the movable lighting fixture 4 is directly concentrated on one side in the horizontal direction of the top plate 1, that is, on the left side. At the same time, the hood 1 of the movable lighting device 4 emits light that is normally diffusely reflected light emitted backward from the front fluorescent lamp 8.
1, the illuminance is effectively reflected onto the top plate 1 by a reflecting portion 13 formed on the front surface of the lamp 1, and as shown in FIG. When the fixed lighting fixture 3 and the movable lighting fixture 4 are moved to the opposite side, that is, to the right side, and the fixed lighting fixture 3 and the movable lighting fixture 4 are arranged on the left and right, the fluorescent lamp 8 of the fixed lighting fixture 3 illuminates the left side of the top plate 1, and the movable lighting fixture The right side of the top plate 1 is irradiated with the fluorescent lamp 12 of 4, and the top plate 1 is illuminated as a whole.
The light from the fluorescent lamps 8 and 12 of both lighting devices is uniformly diffused and radiated over the entire surface of the lamp. Moreover, a state intermediate between the above-mentioned two illumination states can also be created by appropriately moving the movable lighting fixture 4. Here, if lighting efficiency is considered, the sum of the lengths of the fixed lighting fixture 3 and the movable lighting fixture 4, that is, the sum of the lengths of the fluorescent lamp 8 and the fluorescent lamp 12, is the width of the top plate 1 or shelf board 2. It is more preferable to set it so that it substantially matches.

Finally, the reflective part 13 provided on the front surface of the hood 11 of the movable lighting fixture 4 can be formed by processing the front surface of the hood 11 into an appropriate shape, depositing a metal such as aluminum on the surface, and then covering it with a transparent sheet. The reflectance is increased by pasting a tape with high reflectance or embedding a mirror, etc. In a typical embodiment, the cylindrical concave surface 13a shown in FIGS. 1 and 4 is used, and the The light from the fluorescent lamp 8 of the fixed lighting fixture 3 is reflected toward the front of the top plate 1, and its focal point F is set at an appropriate position. Therefore, the upper surface of the top plate 1 is illuminated as if a temporary light source existed at the focal point F. Further, the reflecting section 13 shown in FIG. 5 is a simple flat plate 13b, and the reflected light is irradiated onto the top surface of the top plate 1 in a diverging manner without being converged. The reflecting section 13 shown in FIG. 6 is a polygonal flat plate 13 made by connecting two flat plates shown in FIG. 5 at an angle.
c, the light reflected from each plane plate intersects in front while diverging, and is irradiated onto the top surface of the top plate 1. Note that the reflecting section 13 is not limited to the above-mentioned shape, but may have various shapes.

In this embodiment, the fixed lighting fixture 3 is attached to the shelf board 2.
This is the foot space 6 of desk A.
This is because the position of the user with respect to the top plate 1 is on the left side.Of course, if the foot space 6 is set on the right side or in the center, the fixed lighting fixture 3 will be adjusted accordingly. is set on the right side or in the center.

[Effect of idea]

According to the lighting device for a desk shelf of the present invention as described above, a fixed lighting fixture equipped with a fluorescent lamp is attached to one side in the lateral direction of the lower half of the shelf board provided on the desk shelf, and the shelf board The guide means provided on substantially the entire length in the lateral direction of the rear half of the lower surface is equipped with a hood that is equipped with a fluorescent lamp and has a reflective part on at least the front surface that can reflect light from the fluorescent lamp of the fixed lighting fixture onto the desk top plate. Since the supporting part of the movable lighting fixture is attached so that it can be moved laterally in relation to the supporting part of the movable lighting fixture, the light from the fluorescent lamp of the fixed lighting fixture can be applied to the light from the fluorescent lamp of the movable lighting fixture that has been moved and set at an appropriate position in the horizontal direction. The light from the fluorescent lights of both lighting fixtures can be superimposed to illuminate the top surface of the desk top, and if the lighting fixtures are placed side by side, the light from the fluorescent lights of both lighting fixtures can be directed to the side of the desk top. In addition to being able to concentrate irradiation on one side in one direction, the light that was previously emitted from the fluorescent lamp of the fixed lighting fixture to the rear, which was diffusely reflected light, can be reflected by the reflective part installed in the front of the hood of the movable lighting fixture. The illuminance can be increased by reflecting it onto the top plate, making it suitable for working on one horizontal side of the top plate, and also allowing movable lighting fixtures to be placed on the opposite side from the side with fixed lighting fixtures. When moved and placed on the left and right, the light from the fluorescent lights of both lighting fixtures can be uniformly diffused and irradiated over the entire surface of the top plate.
Since the illuminance over the entire surface of the top plate can be made approximately constant, it is also excellent when using the entire surface of the top plate. In addition, both the fixed and movable lighting fixtures are equipped with fluorescent lights, which generate less heat and consume less electricity, making them economical for long-term use.
On the other hand, unlike when an incandescent lamp is used, there is no large change in brightness or color tone due to illumination, so there is no discomfort at all.

[Brief explanation of the drawing]

Fig. 1 is a partial vertical sectional side view showing a typical embodiment of the lighting device for a desk shelf according to the present invention, Fig. 2 is an overall front view of a fixed lighting fixture and a movable lighting fixture arranged side by side, and Fig. 3 4 is an enlarged longitudinal sectional side view of the main part of FIG. 1, and FIG. 5 is an omitted view showing another embodiment of the reflective part. FIG. 6 is an abbreviated vertical side view showing another embodiment of the reflecting section. A...Desk, B...Desk shelf, 1...Top plate, 2...
Shelf board, 3...Fixed lighting fixture, 4...Movable lighting fixture, 5
... Sleeve drawer, 6 ... Foot space, 7 ... Holder, 8 ... Fluorescent light, 9 ... Reflector, 10 ... Front plate, 11 ... Hood, 12 ... Fluorescent light, 13 ...
Reflection part, 13a... Cylindrical concave surface, 13b... Plane plate, 13c... Polygonal plane plate, 14... Support part, 15... Mounting base, 16... Guide means (guide rail, elongated hole), 17 ...Protruding edge, 18...Folding line,
19...Handle.

Claims (1)

[Scope of utility model registration request] A fixed lighting fixture equipped with a fluorescent lamp is attached to one side in the lateral direction of the lower half of the shelf provided on the desk shelf, and a fluorescent lamp is attached to the guide means provided along approximately the entire length of the lower half of the shelf. and is mounted so as to be movable in the lateral direction in association with a supporting part of a movable lighting fixture having a hood having a reflective part on at least the front surface thereof capable of reflecting light from the fluorescent lamp of the fixed lighting fixture onto the desk top plate. A lighting device for a desk shelf.