JPS6330091Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to a cover used for the main body of a lighting equipment.

(b) Prior Art For example, 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, and a shade for housing the lamp is attached to the tip of the arm. The instrument body is required to be mechanically strong because it supports the upper part of the arm, so the instrument body is made of sheet metal or a resin molded product with a large thickness. Because they are assembled by screwing or caulking, the appearance inevitably becomes poor, and although color painting is applied to improve the appearance, there are problems such as peeling of the paint, making it undesirable for stand-type lighting equipment. In addition, in the case of resin appliance bodies, while maintaining a good appearance, it is necessary to increase the thickness of the plate in order to provide mechanical strength, and to create a complicated structure with ribs, which inevitably tends to increase the overall size. It was hot. In addition, lighting fixtures are generally required to be colorful in various colors for interior decoration, and therefore it is necessary to manufacture multiple types of lighting fixtures with external colors such as red, blue, yellow, and black, even if the structure of the fixture body is exactly the same. However, the manufacturing management was difficult.

(c) Purpose of the invention The present invention solves the problem of the appearance of the above-mentioned appliance body made of sheet metal, the strength problem of the appliance body made of resin, and the lighting that makes it possible to simplify the manufacturing management of the multicolored appliance body. The purpose is to provide covers for instruments.

(d) Structure of the invention The present invention consists of a box-shaped device main body made of a base made of sheet metal and a cover that covers the base.In particular, the cover is made of resin, and the resin cover is used as a base for two first parts. ,
The first cover is composed of two opposing cover side parts and a cover connecting part that connects one side end of both cover side parts in the same direction. a locking pawl that engages with the open side end of the cover side part in a fit-in manner, and step portions on both side ends that fit in the open side end of the cover side part in a hugging manner; The present invention is characterized in that after the cover is fitted from the front of the base, the second cover is fitted to the open side ends of both cover side parts of the first cover.

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

In Fig. 1, 1 is a stand-type lighting device;
A flat pace 2 which is a pedestal, an instrument main body 3 fixed on the pace 2, an arm 4 extending upward from the instrument main body 3 and whose installation angle can be freely adjusted, and a T-shaped joint 5 connected to the tip of the arm 4. , has a cylindrical shade 6 which is removably connected to the joint 5 and extends laterally, and one straight tube type fluorescent lamp 7 is housed within the shade 6. The chain line 8 in Figure 1 is OA
The device has a CRT (cathode ray tube) display device, and numeral 9 is a keyboard board placed 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 the display device 8, and the shade 6 is placed near the top of the CRT screen 10 of the display device 8. The shade 6 has a light-transmitting window 6' at its lower part, and the light from the fluorescent lamp 7 mainly illuminates the keyboard board 9 so as not to directly enter the operator's eyes. As a result, the operator's eye fatigue can be alleviated.

For example, as shown in FIGS. 2 and 3, the instrument main body 3 has a box-shaped sheet metal base (skeleton structure) 11 fixed to the base 2 with screws and covered with a resin cover 12 according to an embodiment of the present invention. The base 11 has a substantially truncated pyramid shape, and support plates 11a, 11a that support both sides of the rear end of the arm 4 in a sandwich style are integrally protruded from the upper end of the base 11. 1
For example, two service outlets 13,
13 and 50Hz and 60Hz power frequency selection switch 14
and a power cord 15 is led out. Each support plate 11
After the arm 4 is fitted between a and 11a and the cover 12 is attached as described below, the support plates 11a and 11a
A bolt 16 is passed through the rear end of the arm 4 and fastened with a nut 17, so that the arm 4 is supported so that its angle can be adjusted in the front and rear directions around the bolt 16. Further, on both front sides of the bottom plate 11c of the base 11, embossments 18, 18 protruding from both sides of the base 11 are integrally provided, and screw holes 1 are provided on both sides of the lower part of the back plate 11b.
9 and 19 are formed, and these are used for attaching the cover 12 next.

The cover 12 includes a first cover 20 made of resin that is fitted onto the base 11 from the front, and a second cover 21 made of resin that is fitted onto the base 11 from the rear.
The first cover 20 has cover side parts 20a, 20a that are fitted on both sides of the base 11, and a cover connecting part 20b that connects the cover side parts 20a, 20a in a shape that covers the front surface of the base 11, Cover connection part 20b
A power switch 22 is removably attached to the.
At the front lower part of each cover side part 20a, 20a,
As shown in the figure, when the first cover 20 is fitted onto the base 11, the projections 2 sandwich the upper and lower surfaces of the embossments 18, 18.
3, 23... are integrally formed, thereby preventing the first cover 20 from floating up. Further, cutout-like step portions 24, 24 are formed along the outer edge of the open side end of each cover side portion 20a, 20a.

The second cover 21 has a shape that closes the rear opening of the first cover 20, and has a wide protective claw 25 in the center on its upper part, and locking claws 26 on both sides of the protective claw 25.
26 is formed in a shape facing upward from the inside as shown in FIGS. 5 to 7, and stepped portions 27, 27 facing inward are formed on both sides as shown in FIG.
These are used for fitting the second cover 21 into the first cover 20. Also, a window hole 2 protruding from the back of the base 11 from the center to the bottom of the second cover 21 through which the service outlets 13, 13, frequency selection switch 14, and power cord 15 are led out.
8, 28... are formed, and screw insertion holes 29, 29 are formed at two locations corresponding to the screw holes 19, 19 on the back surface of the base 11 on both sides of the lower part of the second cover 21.

After fitting the first cover 20 into the base 11 from the front, the second cover 21 first inserts the locking claws 26, 26 inwardly at the upper part of the open end of both cover side parts 20a, 20a of the first cover 20. The ninth bending portion 30, 30
As shown in the figure, it is locked and pressed onto the open end of the cover side parts 20a, 20a in that state. Then, both side steps 27, 27 of the second cover 21
As shown in FIG. 10, the first cover 20 is fitted into the outer step portions 24, 24 at the open end of the first cover 20, thereby preventing the cover side portions 20a, 20a from opening. After that, screw the screws 31, 31 from the screw insertion holes 29, 29 of the second cover 21 into the screw holes 19, 19 of the base 11, and screw the second cover 21 to the back plate 11b of the base 11 at two points. If the first cover 20 is fixed, the first cover 20 is also fixed. At this time the second
The protective claw 25 of the cover 21 closes the space formed between the rear of the lower end of the arm 4 and the upper rear of the first cover 20, and prevents fingers or the like from entering.

It should be noted that the present invention is not limited to the above-mentioned embodiment.
Although the lower part of the cover 21 is screwed to the base 11 at two points, the lower part may be fitted and fixed to the base 11 or the first cover 20. Further, it is also possible to make changes such as making the lower part of the second cover 21 a fitting type and the upper part having a screw type mounting structure.

Furthermore, the present invention is not limited to OA equipment lighting fixtures, but can be fully applied to other general lighting fixtures.

(f) Effects of the invention As explained above, the invention improves the strength of the base by making the frame structure from sheet metal, and by making the cover that fits onto the base from resin, the appearance of the instrument body is improved. Furthermore, by manufacturing the first and second covers with multiple types of resin such as red, blue, yellow, and black, the structure of the fixture body is exactly the same, but it can be used as a colorful interior decoration item with different colors. A lighting fixture that is suitable and whose color does not peel off during use can be easily obtained. Furthermore, since both the first cover and the second cover are fixed to each other, at least the first cover does not need to be screwed to an external member, and therefore the total number of screwed parts can be reduced. This makes it easier to attach the instrument body cover and improves the appearance.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of a lighting fixture having a cover of the present invention, FIGS. 2 and 3 are enlarged exploded perspective views and enlarged views of essential parts of the lighting fixture in FIG. The figure is a sectional view taken along line A-A in Figure 2, Figure 5 is an enlarged rear view of the second cover in Figure 3, and Figures 6 to 8 are lines BB and C- in Figure 5. C line, D-
9 and 10 are partial sectional views taken along the line D, and are taken along arrows E and F in FIG. 3, respectively. DESCRIPTION OF SYMBOLS 1... Lighting fixture, 3... Fixture main body, 12... Resin cover, 20... First cover, 20a... Cover side part, 20b... Cover connection part, 21... Second cover, 26... Locking claw, 27...stepped portion.

Claims (1)

[Scope of utility model claims] In a lighting fixture in which an arm extends upward from a box-shaped fixture body that houses a ballast etc. fixed on a base, and a shade for storing a lamp is attached to the tip of the arm, the box-shaped fixture body is attached to a base made of sheet metal. and a cover that fits onto the base, and the cover is made of a resin first cover, which includes two opposing cover side parts and a cover connecting part that connects one side end of both cover side parts. and a locking claw that fits into the open ends of both cover side parts of the first cover, and a cut-off part that fits into the open side ends of both cover side parts in a hugging manner. and second covers made of resin provided on both sides, and after the first cover was fitted from the front of the base, the second cover was fitted to the open side ends of both cover sides of the first cover. A lighting equipment cover characterized by: