JPH019283Y2 - - Google Patents

Description

[Detailed description of the invention] A. Field of industrial application This invention particularly relates to a stand-type lighting fixture placed on a desk or the like.

B. Prior Art A stand type lighting fixture generally has a structure in which an arm extends upward from a box-shaped fixture body containing a built-in ballast, etc., and a shade for storing a lamp is attached to the tip of the arm. The arm used is a flexible pipe or one that can swing back and forth (or left and right) based on the device body. Therefore, the device body that supports this arm needs to have a mechanically strong structure. The main body of the device is made of sheet metal,
It is constructed from a resin molded product with a thicker plate. However, the main body of the device made of sheet metal is constructed by assembling multiple sheets of metal with screws or caulking, which inevitably results in a poor appearance.Also, although color painting is applied to improve the appearance, there are problems such as peeling of the paint. This is not desirable in stand-type lighting equipment.
In addition, in the case of resin appliance bodies, while maintaining a good appearance, in order to provide mechanical strength, it is necessary to increase the thickness of the plate and create a complicated structure with ribs, which inevitably tends to increase the overall size. Ta.

C. Purpose of the invention In view of the above-mentioned problems, the object of the invention is to provide a lighting fixture that improves or eliminates the problems.

D. Structure of the invention The present invention has a box-shaped inner body made of sheet metal;
It is characterized by having a double structure with a resin outer body fitted and fixed along the outer surface of the inner body.
The arms and the like led out from the instrument main body are mainly supported by the inner main body made of sheet metal, and the outer main body made of resin is removably fitted onto the inner main body mainly as an exterior cover to improve the appearance. In this way, problems with the mechanical strength and appearance of the instrument body can be easily solved,
Furthermore, since the external body is used merely as a cover, a resin molded product with a thin plate and simple structure is used, and the overall size can be reduced.

E. Example An example in which the present invention is applied to a stand-type lighting fixture for illuminating OA (office automation) equipment will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a stand-type lighting device according to the present invention, which includes a flat base 2 as a pedestal, a device body 3 fixed on one end of the base 2, and a mounting angle extending upward from the device body 3. An adjustable arm 4, a T-shaped joint 5 connected to the tip of the arm 4, and a cylindrical shade 6 removably connected coaxially to one end of the joint 5 and extending laterally.
One straight tube type fluorescent lamp 7 is housed in the shade 6. 1 is a CRT (cathode ray tube) display device of OA equipment, and 9 is a keyboard board arranged at the front lower part of the display device 8. Lighting fixture 1 is base 2
A part of the display device 8 is placed under a part of the display device 8,
Sade 6 is CRT screen 10 of display device 8
It is placed near the top of the A transparent window 6' is formed in the lower part of the shade 6, and the light from the fluorescent lamp 7 mainly illuminates the keyboard board 9 so that the light does not directly enter the operator's eyes. As a result, the operator's eye fatigue can be alleviated.

Next, the specific structure of the instrument body 3, which is a feature of the present invention, will be explained with reference to FIGS. 2 to 5. This is composed of an inner body 11 made of sheet metal and an outer body 12 made of resin.

The inner body 11 made of sheet metal includes, for example, a rectangular bottom plate 13 and a pair of opposing side plates 1, as shown in FIG.
4, 14, a front plate 15, and a back plate 16. Further, the resin outer body 12 is composed of a body cover 17 and a back cover 18, which are resin molded products, as shown in FIG. 3, for example.

The bottom plate 13 of the internal body 11 has both side parts 13a, 13
a is bent upward by 90 degrees, and each bent side portion 13a, 1
3a, there are protrusions 13b, 13 on the outer surface side for preventing the body cover 17 from lifting up.
b is provided protrudingly, and recesses 13c, 1 are provided on the inner surface at two opposing locations at the rear of each bent side portion 13a, 13a.
3c... is provided protrudingly, and each recessed portion 13c, 13c...
Screw holes 19, 19, . . . are formed in the center. In addition, screw insertion holes 20, 20... are formed in two places on the front and back of the bottom of the bottom plate 13, and bulges 13d, 13d that bulge slightly upward are formed in two places on the front and back of the approximately central part of the bottom. Ballast 2 is placed on the bulges 13d and 13d.
Screw hole 2 for fixing 1 with screws 22, 22
3, 23 are formed (see Figure 3). Bottom plate 13
is fixed at a fixed position on the base 2 with screws 24, 24, . . . using four screw insertion holes 20, 20, .

The two side plates 14, 14 are of the same shape, and the shape of one side plate 14 will be explained below.This is a trapezoidal lower side plate 14a, an upper circular lower rectangular upper side plate 14b, and connects both. It is composed of a connecting portion 14c. Concave portions 14 projecting inward are provided at two locations each on both sides and the bottom side of the lower side plate 14a.
d, 14d... are formed, and each recess 14d, 14
Screw insertion holes 25, 25... are formed in the center of d.... The recesses 14d, 14d on the lower side are the bottom plate 13
It fits into the outer surface of the recesses 13c, 13c of the one side portion 13a. In addition, the end surfaces of the front plate 15, the back plate 16, and the bottom plate 13 come into contact with protrusions 26, 2 at two locations on both sides and the bottom of the lower side plate 14a for positioning.
6... is provided protruding inward. In the side plate upper part 14b located inward from the side plate lower part 14a, there is a round hole 27 at the center of the semicircular upper part, and a cut and raised piece 28 provided inwardly protruding in the square lower part and a part in the circular direction centered on the round hole 27. A plurality of long holes 29, 29, . . . are formed in series.
This side plate upper part 14b is connected to an arm 4 as shown in FIG.
The palm is positioned on one side of the lower end 4'. still,
At the lower end of the arm 4', 30 is a shaft hole provided at the center of rotation of the arm, 31 is an arc-shaped notch centered on the shaft hole 30, and 32 is pressed outward by a built-in spring 32' so that a part of the side surface is opened. Ball with a part protruding, 33
is a spring whose one end is fixed to the lower end of the arm. This arm lower end 4' has one side facing the side plate upper part 1.
4b, align the shaft hole 30 with the round hole 27, and make the notch 31.
The cut and raised piece 28 is inserted into the hole 29, and the ball 32 is inserted into the elongated hole 29.
29... is positioned and attached so as to be resiliently fitted to any one of them.

The two side plates 14, 14 are the respective sides 13a, 13a of the bottom plate 13 fixed on the base 2 with screws.
Recesses 13c of each side surface 13a, 13a on the outer surface side of the
Each recess 14 on the lower side of the side plates 14, 14 in 13c...
d, 14d... are aligned and fixed with screws 34, 34..., so that the two sheets are vertically disposed facing each other at a constant interval. The front plate 15 is fitted into the front opening of each of the side plates 14 and fixed with screws, and the back plate 16 is fitted into the rear opening and fixed with screws.

For example, the front plate 15 is opposed to the side plates 1 at regular intervals.
Bent side parts 15a, 15a that fit inside the upper front sides of the lower side plates 14a, 14a of No. 4, 14, and ears 15b, 15 that fit on the front part of the connecting part 14c.
b at both ends of the upper side, bent both sides 15a, 15a
A recess 15 that matches the recesses 14d, 14d at the upper front sides of the lower side plates 14a, 14a is provided in the center of the
c, 15c are formed. Each recess 15c, 15c
There are screw holes 35, 35 in each ear part 15b, 15b.
Screw insertion holes 35', 35' are formed in the connecting portion 14 of the side plates 14, 14.
This corresponds to the screw holes 25', 25' formed in the front of c. The front plate 15 is fixed to the side plates 14, 14 at four locations in total with screws 36, 36, . . . . Also, the front plate 15
A locking hole 37 is formed in the center of the lower part of the arm, into which the spring 33 of the lower end portion 4' of the arm is extended and its tip is locked.

In addition, the back plate 16 has side plates 14 facing each other at regular intervals,
It has bent side parts 16a, 16a that are fitted along the inner surfaces of the rear side parts of the 14 side plate lower parts 14a, 14a.
Each recess 14d, 14d... on the rear side of a, 14a.
Recesses 16b, 16b... are formed that match the recesses 16b, 16b..., and screw holes 38, 38... are formed in the center of each recess 16b, 16b..., so that the back plate 1
6 is fitted into the openings on the back side of the side plates 14, 14, and a total of 4
It is screwed with book screws 39, 39, . . . . This back plate 16 has mounting holes 40, 40 for two service outlets (not shown), a mounting hole 41 for a 50Hz and 60Hz frequency selector switch (not shown), and a mounting port 43 for a power cord 42. Further, screw holes 44, 44 for screwing the back cover 18 are formed at two places on both sides of the lower part.

The internal body 11 has a ballast 21 on the base 2.
After fixing the bottom plate 13 with screws, then screwing the side plates 14, 14 to the bottom plate 13, and then fixing the front plate 15 and the back plate 16 with the service outlet etc. attached.
are screwed to the side plates 14, 14 in sequence to perform assembly. After that, the main body cover 17 is fitted into the internal main body 11 from the front, and then the side plate upper parts 14b, 14
Insert the lower end part 4' of the arm between b and fix it with bolts 45 and nuts 46, which will be described later, and finally tighten the inner body 11.
The back cover 18 is fitted and screwed from behind. Both sides of the internal body 11, that is, the side plates 14,
The outer surface of 14 has inward recesses 14d, 14d...
Each screw 34...
. . , 36 . . . , 39 .
The width of 2 can be made smaller.

Next, a specific example of the main body cover 17 and back cover 18 of the external main body 12 will be explained with reference to FIG. Body cover 1
Reference numeral 7 denotes cover side portions 17a, 17a that are fitted onto the side plates 14, 14 of the internal main body 11, and cover side portions 17.
The cover front part 17b connects the front parts of the covers 17a and 17a, and the lower part of the cover front part 17b protrudes forward, and the power switch 47 is fitted and fixed onto the cover front step part 17c. Also, each cover side part 17
As shown in FIG. 5, projections 17d, 17d, . At the same time, the upper and lower projections 13b, 13b protruding from both sides of the bottom plate 13 are engaged to prevent the main body cover 17 from lifting up.

The back cover 18 has a shape that covers the rear opening of the main body cover 17 in a hugging manner.
and a protective claw 18 that closes the rear upper opening of the internal body 11.
b, and has screw insertion holes 49, 49 on both lower sides for screwing screws 48, 48 to the back plate 16 of the internal main body 11. Also back cover 1
8 has each mounting hole 40, 40, 4 of the back plate 16.
Outlets 50, 50, etc., such as service outlets, are formed at positions corresponding to 1, 43.

The outer main body 12 is assembled by fitting the main body cover 17 to the inner main body 11 and, after attaching the arm, fitting the back cover 18 to the main body cover 17 and fixing it with screws. To install the arm 4, align the shaft hole 30 of the lower end 4' with the round holes 27, 27 of the side plates 14, 14, insert the bolts 45 into each of the holes 27-30-27, and tighten the nuts on the tips of the bolts. This is done by screwing in 46. The bolt 45 used has an end cap 45' fixed to its base end. If one of the end cap 45' and the nut 46 is fixed by hand and the other is warmed, the arm 4 will be able to swing back and forth, and when the arm 4 is rocked, the built-in ball 32
moves intermittently between the elongated holes 29, 29, .

Note that the present invention is not limited to stand type lighting equipment for OA equipment, but can be similarly applied to other general lighting equipment.

Further, the sheet metal inner body is not limited to the illustrated example, and for example, the front plate and the back plate may be omitted.

F. Effects of the invention As explained above, according to the invention, the mechanical strength of the instrument body can be set to be sufficiently large with the inner body made of sheet metal, and the external body can be made of resin with a colorful and excellent design. We can provide lighting equipment with high commercial value that you can choose from.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention;
Figures 3 and 3 are exploded enlarged views of the main body of the lighting fixture in Figure 1, Figure 4 is an enlarged view of the main parts of Figure 1, and Figure 5 is a sectional view taken along line A-A in Figure 3. be. DESCRIPTION OF SYMBOLS 1... Lighting fixture, 3... Fixture main body, 11... Inner body made of sheet metal, 12... Outer body made of resin, 21...
…ballast.

Claims (1)

[Scope of utility model registration request] In a lighting fixture having a box-shaped fixture body containing a built-in ballast, etc., the fixture body is fitted with a sheet metal inner body having at least a recess for screwing on the outer surface, and at least both sides of the sheet metal inner body. and a resin outer body having an inner wall surface with dimensions of lighting equipment.