JPH0638327Y2 - Desk lighting - Google Patents

Description

[Detailed Description of the Invention] << Industrial Application Field >> The present invention relates to a lighting device particularly for a learning desk.

<< Conventional Technology and Problems >> Conventionally, a first lighting fixture using a straight tube fluorescent lamp fixed in the longitudinal direction on the lower surface of a shelf of a bookcase standing upright on the rear of the desk of a desk; 1. A second lighting device using a straight tube fluorescent lamp, which is arranged so as to be freely inserted and removed in a horizontal plane in a direction substantially at a right angle to the first lighting device, approximately on the side of the longitudinal direction of the first lighting device. there were. (Actual public Sho 62-30249
No.) That is, when the second lighting device is moved forward, the user has a structure to pull out the lighting device by himself. Since it was roughly pulled out or pushed in, the lighting fixture could be damaged by the impact when the movement of the lighting device was stopped.

<< Object and Configuration of the Present Invention >> The present invention improves the above-mentioned drawbacks, and further, the luminaire moves automatically at a forward direction, and the luminaire apparatus moves at a slow speed that does not affect the lamps and the like. The first illuminating device having a straight tube type fluorescent lamp is formed on the right side below the shelf plate of a bookshelf standing upright on the rear of the top plate of the desk. A second illuminating device having a U-shaped fluorescent lamp on the left side of the
The lighting device is kept constant by a constant load device so that the lighting device frame is always urged to move forward, a speed control device that controls the moving speed of the lighting device frame, and the lighting device frame is stored under the shelf board. It has a stopper device which can be freely changed to a movable state and a movable state.

<< Example >> Hereinafter, an example is described based on a drawing.

FIG. 2 shows a perspective view of a learning desk equipped with the present invention.

Reference numeral 10 indicates a desk, reference numeral 11 indicates a bookshelf standing upright on a rear portion of a top plate 12 of the desk 10, reference numeral 13 indicates a shelf board installed between left and right side plates 14 of the bookshelf 10, and reference numeral 2 Indicates an illuminating device arranged below the shelf plate 13.

The illuminating device 2 is composed of a first illuminating device 20 located on the lower right side of the shelf 13 and a second illuminating device 3 located on the left side of the first illuminating device 20.

The first lighting device 20 is a socket fixed to the lower surface of the shelf board 13.
Straight tube fluorescent lamp 22 mounted on 21 and the front edge of the shelf 13
The first shielding decorative edge 23, which is unified in design with 15, is integrally formed on the lower surface of the front end edge 15 and prevents the irradiation light of the straight tube fluorescent lamp 22 from directly touching the eyes of the user, and stable. It is composed of a container (not shown) and the like. The second lighting device 3 has a shelf plate 13
A lighting fixture holding frame 4 having guide rails 40, 40 formed in the front-rear direction below a predetermined dimension on the left and right end sides of a board 41 connected to the lower surface of the board by screws or the like, and a guide rail 40. Guide support ridges 50, 50 supported by rails 40, 40
Is a lighting fixture frame 5 formed to project outward below the left and right ends of the upper end, a constant load device 6 attached to the rear end of the lighting fixture frame 5, and a substrate 41 of the lighting fixture holding frame 4. It is composed of a stopper device 7 provided at the end, a speed control device 8 formed inside the front ends of the guide rails 40, 40, and the like.

The lighting fixture holding frame 4 has a predetermined interval between the ballast boxes 42 and 42 formed on the lower surfaces of the left and right end portions of the substrate 41 and the lower surfaces of the ballast boxes 42 and 42, and is formed in the front-back direction so as to project downward Guide rails 40, 40 formed by the guide forming protrusions 43, 43 having an inner facing surface open, and a front stopper protrusion formed by bending the central portion of the front end of the substrate 41 downward in an L shape.
It has 411 etc.

Reference numeral 44 indicates a glow ball mounting seat, and reference numeral 45 indicates a glow ball.

Further, reference numerals 421 ... Depict heat dissipation holes formed on the side surfaces of the ballast boxes 42, 42.

The lighting fixture frame 5 has a box shape with an open lower surface, and has a design in harmony with the first shielding decoration edge 3 on the front end surface.
The second shielding decorative edge 51 that matches the notch 231 formed in the guide rail 40 is attached to the lower surface of the guide supporting protrusion 50, 50.
And is supported by the lighting fixture holding frame 4 so as to be movable back and forth.

Reference numeral 52 indicates a rack portion that is formed in parallel with the lower surface of the stabilizer box 42 and above the guide supporting protrusions 50, and reference numeral 53 indicates a constant load formed on the rear end surface of the lighting fixture frame 5. Reference numeral 54 denotes a device mounting portion, reference numeral 54 denotes a mounting portion of the iron piece 70 which constitutes a part of the stopper device 7, and reference numeral 55 denotes a U-shaped fluorescent lamp provided inside the lighting fixture frame 5. .

The constant force device 6 uses a constant force spring 61 in the embodiment, one end of which is fixed to the front stopper protrusion 411 with a screw or the like.
The other end is wound around a drum 60 which is rotatably held by a constant load device attachment portion 53.

That is, since the constant load spring 61 is about to be wound around the drum, the constant load spring 61 urges the lighting fixture frame 5 to always move forward.

In the embodiment, the stopper device 7 is composed of a catch portion 72 formed of a push-type magnetic catch attached to the rear surface of the rear end portion of the substrate 31, and the iron piece 70 attached to the rear end portion of the lighting fixture frame 5.

That is, the iron piece 70 attached to the lighting fixture frame 5 pushed in from the front is attracted to the catch portion 72, and the constant force spring is
Against the urging force of 61, the lighting fixture frame 5 is the lighting fixture holding frame 4
It is kept stored in the.

At this time, the second shielding decorative edge 51 and the front surface and the lower surface of the first shielding decorative edge 23 are substantially flush with each other.

Next, when the lighting fixture frame 5 is further pushed in, the catch portion 42
Is a push type magnet catch, the iron piece 70 is in a separable state, the lighting fixture frame 5 moves forward by the constant load device 6, and the mounting portion 54 abuts on the front stopper protrusion 311. Stop. (A phantom line in FIG. 2 and a state shown in FIG. 4) The speed control device 8 includes the rack portion 52 formed on the lighting fixture frame 5, the pinion portion 81 meshing with the rack portion 52, and the pinion portion 81. The pinion portion 81 and the control portion 82 are mounted inside the front ends of the guide forming protrusions 43, 43, and the pinion portion 81 is always the rack portion 52.
Since it meshes with, the movement of the rack portion 52, that is,
The moving speed of the lighting fixture frame 5 is controlled.

<Effect> As described above, the present invention is composed of the first lighting device and the second lighting device, and the second lighting device is formed so as to be able to move in and out, so that it is possible to illuminate the desk from the side, especially for reading. Very useful in lights.

Further, since the U-shaped fluorescent lamp is used for the second illuminating device, it can be made compact and can be visually integrated with the first illuminating device, which is aesthetically superior.

Furthermore, since the second lighting device is constantly urged by the constant load device to move forward, the lighting fixture frame automatically moves forward, and the speed control device moves slowly. Therefore, there is no effect on the lighting when stopped, so even lower grade children can use it safely.

[Brief description of drawings]

FIG. 1 shows one embodiment of the present invention, FIG. 1 is a perspective view of a main part of the present invention, FIG. 2 is a perspective view of a desk equipped with the present invention, and FIG. 3 is a state in which a luminaire frame is stored. 4 is a sectional view of a main part of the speed control device, FIG. 6 is a sectional view of a main part of the speed control device, and FIG. FIG. 10 …… Desk 11 …… Bookcase 13 …… Shelf 2 …… Lighting device 20 …… First lighting device 22 …… Straight tube fluorescent lamp 3 …… Second lighting device 6 …… Constant load device 7 …… Stopper Device 8: Speed control device

Claims (1)

[Scope of utility model registration request] 1. A first illuminating device having a straight tube fluorescent lamp is formed on the right side below a shelf of a bookshelf erected on the rear of the desk of a desk, and a U-shaped tube is provided on the left side of the first illuminating device. In a lighting device in which a second lighting device having a compact fluorescent lamp is juxtaposed, the second lighting device controls a moving speed of the lighting device frame and a lighting device frame that is always biased to move forward by a constant load device. A lighting device for a desk, comprising: a speed control device for restraining the lighting device; and a stopper device that can be changed to a state in which the lighting device frame is stored in a lower position of a shelf plate and a state in which the lighting device frame can be moved forward.