JPH0430121B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fluorescent lamp device, and more particularly to an integrated structure of a globe, a holder, and a cup-shaped portion.

Structure of conventional examples and their problems Recently, fluorescent lamps have been developed in which an envelope is composed of a globe and a cup-shaped part, and a lighting device including a glow lamp as well as a non-linear fluorescent lamp is provided in the envelope. The device has been put into practical use. Conventionally, an adhesive such as a silicone resin is used to fix the glove and the cup-shaped part, and the openings of the two are attached by curing the adhesive by heating. However, this structure requires a considerable amount of time to assemble and uses adhesive, which is a factor in increasing costs.

In addition, there is also a device in which multiple recesses are provided on the inner circumferential surface of the cup-shaped part, corresponding protrusions are provided on the glove, and the openings of the two are attached to each other by concave-convex fitting, without using adhesive. It is being However, with this structure, external stress deforms them, causing the uneven parts to become unfitted and the glove to come off from the cup-shaped part, which exposes the live parts of the built-in parts and poses a risk of electric shock. There was a fear that something would happen.

OBJECTS OF THE INVENTION The present invention provides a fluorescent lamp device in which a glove and a cup-shaped portion can be easily and firmly attached and fixed without using an adhesive.

Structure of the Invention According to the present invention, a convex portion is formed on the outer peripheral surface of the opening of a globe in which a non-linear fluorescent lamp is provided, and a holder for holding and fixing the non-linear fluorescent lamp is provided on the outer surface. A plurality of protrusions are provided, and a plurality of tongues are provided on the flange of the holder, and these tongues protrude outward from the flange of other parts, and the inner peripheral surface of the cup-shaped portion a plurality of recesses are formed in the cup-shaped part, the tongue of the holder is fitted into the recess of the cup-shaped part, and when the bottom surface of the glove is positioned on the brim part, the protrusion of the glove is formed in the recess of the cup-shaped part. The glove, the holder, and the cup-shaped part are fitted together, and the cup-shaped part, the glove, and the holder are overlapped by the protrusion.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a sectional view of a fluorescent lamp device which is an embodiment of the present invention. In this fluorescent lamp device, a holder 2 is provided in the opening of a transparent globe 1, and a cup-shaped portion 4 into which a light bulb cap 3 is screwed and attached to the lower end is fitted. The glove 1, holder 2 and cup-shaped part 4 are made of plastic or the like.

Inside the globe 1, a lighting device including a double U-shaped non-linear fluorescent lamp 5 and a glow lamp 6 is provided and held by a holder 2. Further, the top of the globe 1 is filled with a thermally conductive medium 7 made of silicone or the like, and a part of the non-linear fluorescent lamp 5 is placed in the medium and in contact therewith. Note that a noise prevention capacitor 8 is connected to both ends of the glow lamp 6. Furthermore, a ballast consisting of a choke coil 9 and a capacitor 10 is provided in the space formed by the holder 2 and the cup-shaped portion 4.

Next, the integrated structure of the glove, holder, and cup-shaped portion will be explained using FIGS. 2 to 4. FIG. 2 is an exploded perspective view of a fluorescent lamp device according to an embodiment of the present invention, and FIGS. 3 and 4 are sectional views of essential parts thereof. As shown in FIG. 2, a plurality of notches 11 are formed in the opening of the glove 1, and a plurality of tongue pieces 12 are provided. The tongue piece 12 is provided with spring properties by forming the notch 11. A convex portion 13 is formed on the outer peripheral surface of each tongue piece 12. The holder 2 has a collar 14,
A plurality of notches 15 are formed in this flange portion 14 and a plurality of tongue pieces 16 are provided. The tongue piece 16 protrudes outward from the other part of the collar part 14. Further, like the tongue piece 12, this tongue piece 16 is provided with spring properties. Further, a plurality of protrusions 17 are integrally formed on the outer surface of the holder 2. A plurality of recesses 18 are provided on the inner peripheral surface of the cup-shaped portion 4 .

With the structure described above, when the holder 2 is pushed into the cup-shaped portion 4 so that the tongue 16 of the holder 2 fits into the recess 18 of the cup-shaped portion 4, the tongue 16 initially moves inward. Although it is biased, when it moves into the recess 18, it returns to its original state, expands outward, and is fitted into the recess 18. This fitted state is shown in FIG. Next, when the glove 1 is pushed into the cup-shaped part 4 so that the convex part 13 of the tongue piece 12 of the glove 1 fits into the concave part 18 of the cup-shaped part 4 , the convex part 13 of the tongue piece 12 fits into the convex part 13 of the tongue piece 16 . It is fitted into the recess 18 by the same action as in the case. This fitted state is shown in FIG.

As can be seen from FIG. 3, the tongue piece 16 of the holder 2 and the convex part 13 of the glove 1 are fitted into the concave part 18 of the cup-shaped part 4 in an overlapping manner. Note that the recess 1
If the height of 8 is set to the total thickness of the tongue piece 16 and the thickness of the convex portion 13, no rattling will occur during fitting.

In addition, as shown in FIG. 4, the protrusion 17
As a result, the cup-shaped portion 4, the glove 1, and the holder 2 have a superposed structure.

Therefore, with such a configuration, the connection between the glove 1 and the cup-shaped portion 4 becomes extremely strong even with the reinforcement by the holder 2, and the glove 1 deforms in response to external stress to form the cup-shaped portion. There is no risk of being removed from Part 4. Furthermore, since an extremely strong bonding structure is obtained without the use of adhesives, heating for curing the adhesive is not necessary, and the bonding can be performed easily and quickly, leading to cost reductions. In addition, the recess 18 of the cup-shaped portion 4
The convex part 13 of the glove 1 and the tongue piece 16 of the holder 2
Because it is shared for fitting, mold production is easy and inexpensive.

Effects of the Invention As explained above, according to the present invention, the attachment and fixation of the glove and the cup-shaped part can be performed extremely firmly, and the built-in parts are exposed when the glove comes off due to external stress. It does not pose any dangers such as electric shock, and because it can be installed and fixed without the use of adhesives, it can be assembled easily and quickly, and has excellent effects such as reducing costs. A fluorescent lamp device can be provided.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a fluorescent lamp device according to an embodiment of the present invention, FIG. 2 is an exploded perspective view, and FIGS. 3 and 4 are sectional views of essential parts. DESCRIPTION OF SYMBOLS 1... Glove, 2... Holder, 4... Cup-shaped part, 5... Non-linear fluorescent lamp, 11... Notch, 12... Tongue piece, 13... Convex part, 14... Brim part , 15... Notch, 16... Tongue piece, 17...
Projection, 18... recess.

Claims (1)

[Claims] 1 A convex portion is formed on the outer peripheral surface of the opening of the globe in which the non-linear fluorescent lamp is provided, and a plurality of protrusions are formed on the outer surface of the holder for holding and fixing the non-linear fluorescent lamp. and a plurality of tongue pieces are provided on the flange of the holder, and these tongue pieces protrude outward from the flange of other parts, and further, a plurality of recesses are provided on the inner circumferential surface of the cup-shaped part. the tongue of the holder is fitted into the concave portion of the cup-shaped portion, and the bottom surface of the glove is positioned on the brim portion, and the convex portion of the glove is fitted into the concave portion of the cup-shaped portion. A fluorescent lamp device characterized in that the globe, the holder, and the cup-shaped part are integrated, and the cup-shaped part, the globe, and the holder are overlapped by the protrusion.