JPS6318118Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a fluorescent lamp with a screw-in base that can be used by connecting it to a screw-in socket, and includes a fluorescent lamp 1 bent into a substantially U-shape.
A fixing plate 6 is fixed to the upper outer periphery of a screw-in type cap 5 which has a terminal pin connection hole 4 on the top surface, and the terminal pin 3 is fixed to the upper outer periphery of the screw-type cap 5 which has a terminal pin connection hole 4 on the top surface. A cover 7 with a built-in lighting device is formed into a circular outer shape, and an oval insertion hole 8 is provided in the cover 7, and the fluorescent lamp 1 is passed through the insertion hole 8 and the fluorescent lamp 1 is inserted into the cover 7.
This relates to a fluorescent lamp with a screw-in type base, which covers a base 2 covering both ends of the lamp and has a cover 7 coupled to a fixing plate 6.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fluorescent lamp with a screw-in base that can be connected to a screw-in socket and used in the same manner as an incandescent lamp, and can be made compact.

The present invention will be explained in detail below with reference to Examples. Fluorescent light 1
is bent into a substantially U-shape as shown in FIG. Further, both ends of the fluorescent lamp 1 are covered with a single cap 2,
Two pairs of terminal pins 3 at both ends of the fluorescent lamp 1 are made to protrude from the lower surface of the base 2. The cap 2 may be formed of a synthetic resin molded product. Two pairs of terminal pin connection holes 4 are provided on the upper surface of the screw-in type cap 5, which is formed by providing a thread groove on the outer periphery, and a fixing plate 6 is fixed on the outer periphery of the upper end of the screw-in type cap 5. Reference numeral 9 denotes a mounting piece erected on the peripheral edge of the fixed plate 6. The cover 7 is formed in a cylindrical shape, has an insertion hole 8 on its upper surface and an opening on its lower surface, and has a built-in lighting device such as a ballast or a glow tube. To attach the screw-type base 5 to the fluorescent lamp 1, first insert the terminal pin 3 into the terminal pin connection hole 4, then insert the fluorescent lamp 1 into the insertion hole 8 of the cover 7, and screw the lighting device inside the cover 7. Connect the cap 5 with the lead wire 10, then cover the cap 2 with the cover 7, and insert the fixing hole 1 of the cover 7.
1, screw a screw into the mounting piece 9 of the fixing plate 6.
It is assembled in this manner as shown in FIG. 1, and the screw-in cap 5 is connected to the screw-in socket so that it can be used in the same manner as a normal incandescent lamp. At this time, if the size of the insertion hole 8 of the cover 7 is made smaller than the diameter of the cap 2, it is possible to hold the cap 2 with the cover 7 and fix the fluorescent lamp 1 to the screw-in cap 5 using the cap 2. This prevents the terminal pins 3 from being damaged due to force applied when the fluorescent lamp 1 is installed in a socket.

FIG. 3 shows another embodiment of the cover 7.
A pair of claw pieces 12, 12 are provided so that the shape of the insertion hole 8 approximates the outer shape of the fluorescent lamp 1. The claw pieces 12, 12 are slightly inclined downward, so that when the cover 7 is attached, the elasticity of the claw pieces 12 can press the top surface of the cap 2, making it easy to attach the fluorescent lamp 1 to the screw-in cap 5. This prevents sagging from occurring. In addition, FIG. 4 shows a fixing plate 6 in which an inclined claw 13 is provided by cutting and bending the fixing plate 6. Even in this case, the elasticity of the inclined claw 13 can hold down the bottom surface of the base 2, and the fluorescent lamp 1 can be mounted in the same manner as above. This prevents rattling.

As mentioned above, in this invention, the fluorescent lamp is bent into a substantially U-shape, so the terminal pins at both ends of the fluorescent lamp can be positioned on one side of the fluorescent lamp, and both terminal pins can be connected to one screw-type base. It can be connected to a lamp, and can be attached to a screw socket and used in the same manner as an ordinary incandescent lamp. Moreover, since the cover with the built-in lighting device covers the base that covers both ends of the fluorescent lamp, the cover can serve both as an insulator that covers the base and as a case that covers the lighting device, making the whole compact. It is something that can be done. Furthermore, an oval insertion hole is provided in the cover, and a fluorescent lamp bent into a roughly U-shape is passed through this insertion hole, so even if an external force is applied to the fluorescent lamp to rotate it horizontally, the fluorescent lamp will remain oval. The terminal pin inserted into the terminal pin connection hole of the screw-type base is There are some that can prevent large external forces from acting on them and prevent damage to the terminal pins.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 is an exploded perspective view of the same as above, Fig. 3 is a perspective view of another embodiment of the cover, and Fig. 4 is another embodiment of the screw-type cap portion. FIG. 2 is a perspective view of an example. 1 is a fluorescent lamp, 2 is a cap, 3 is a terminal pin, 4 is a terminal pin connection hole, 5 is a screw-in cap, 6 is a fixing plate, 7 is a cover, and 8 is an insertion hole.

Claims (1)

[Scope of utility model registration request] A terminal pin is made to protrude from the base that covers both ends of a fluorescent lamp bent into a substantially U shape, and a fixing plate is fixed to the upper outer periphery of the screw-type base that has a terminal pin connection hole on the top surface, and the terminal pin is connected to the terminal pin. A cover that is inserted into the connection hole and has a built-in lighting device is formed into a circular outer shape, and an oval insertion hole is provided in the cover.
A fluorescent lamp with a screw-in base, in which a fluorescent lamp is passed through the insertion hole, and a cover is used to cover a base that covers both ends of the fluorescent lamp, and the cover is connected to a fixing plate.