JPH063709B2 - Manufacturing method of light bulb type fluorescent lamp - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a bulb-type fluorescent lamp, and more particularly to a method for manufacturing a mount in this type of lamp.

[Background of the Invention]

When connecting a filament between two introduction lines, the part of the introduction line corresponding to the position where the filament is connected is crushed, and the introduction line rotates during the bending process to make the bending uncertain. It is difficult to connect the wires. Further, when the finished product in which the filaments are connected is transported, the introduction wire rotates due to the coiling of the filament, and it is difficult to maintain the accuracy of the introduction wire interval. The change in the lead-in wire interval directly affects the wire connection state of the filament and adversely affects the lamp characteristics.

[Object of the Invention]

Therefore, an object of the present invention is to provide a method for manufacturing a compact fluorescent lamp capable of solving these problems.

[Outline of Invention]

In order to achieve the above object, in the present invention, the lead wire of the mount component and the filament are previously fixed with a metal wire at a predetermined interval between the two lead wires in the previous step, and in that state Wire the filaments. After that, the flare, the exhaust pipe, and the plurality of inner pipe mount components are integrated with each other and heat-softened by a burner from the outer periphery of the flare body and pinch-sealed. Considering the post-process, the length of the plurality of lead-in wires extending outside the mount should be constant, and the removal of the metal wire is also necessary. By cutting the lead wire at a position where the metal wire can be removed in the mount manufacturing process, a bulb-shaped fluorescent lamp mount can be manufactured in which the metal wire is removed and the length of the lead wire outside the mount is constant.

The gist of the present invention is to fix a pair of introduction lines with a metal wire or a metal plate to reduce the disturbance of the positional relationship between the pair of introduction lines due to the handling of the pair of introduction lines, and then to integrate The filament was spliced near the tip of the introduction wire of the hollow mount (3) and inserted into a pair of inner tubes each having one end open at a predetermined position in the hollow part of the hollow mount (3) and the other end of each inner tube. Prepare the filament in the state, the lead-in wire and the exhaust pipe, and pinch-seal the mount, the pair of inner pipes, the filament and the exhaust pipe from the outside of the mount, thereby the mount and the pair of inner pipes. ,filament,
A light-bulb-shaped fluorescent lamp, characterized in that an introduction line, a metal line or a metal plate and an exhaust pipe are integrated, and thereafter, the introduction line is cut at a predetermined position to separate the metal line or the metal plate from the introduction line. In the manufacturing method.

Example of Invention

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1, 2, 3, and 4.
It will be described with reference to the drawings.

FIG. 1 shows a basic configuration diagram of a mount of a light bulb type fluorescent lamp manufactured by the manufacturing method according to the present invention. FIG. 2 is a mounting component arrangement configuration diagram before forming into a mount. As shown in FIGS. 1 and 2, the metal wire 6 between the two lead wires 4 was previously fixed in the previous step, and in that state, the two sets of electrodes connecting the filaments 2 and the exhaust pipe 5 were flared. Then, the inner tube 1 is inserted from the upper part around each filament 2 and set. In this state, the flare 3, the inner pipe 1, and the exhaust pipe 5 are heated and softened by the burner 8 by rotating around the exhaust pipe 5, and the pinch sealing is performed by the pressing piece 7 which is inserted from the left and right direction. As a result, the lead-in wire 4 of the metal conductor, the vitreous inner tube 1, the flare 3 and the exhaust tube 5 are fused together. Further, by cutting the metal wire 6 between the lead wires 4 at a position where the metal wire 6 can be removed, the mount shown in FIG. 1 can be completed.

FIG. 3 is a basic configuration diagram of a bulb-type fluorescent lamp manufactured by using the mount manufacturing method according to the present invention. In this, an outer tube bulb 9 having a light-scattering film formed on its inner surface is sealed to a flange portion of a flare 3 of a mount having an inner tube 1 having a fluorescent film formed on its inner surface.

FIG. 4 shows an application example of the fixing method between the lead-in wires 4, which is a method of bending and joining one lead-in wire 4, 4 '. Also in this case, if the lead-in wire 4 is cut at a position where the bent portion can be removed, the mount shown in FIG. 1 is completed.

〔The invention's effect〕

As described above, according to the present invention, since the metal wire can be removed and the length of the lead wire outside the mount can be made constant in the mount manufacturing process, it is possible to ensure the decomposition of the filament in the exhaust process and to attach the die. It is easy to handle the lead-in wire, and it is possible to obtain an effect that a high-quality compact fluorescent lamp can be manufactured at low cost. Further, in the present invention, an electrode in which a filament is provided between a pair of conducting wires is used instead of an electric bulb in which two pins are set up on the stem and the filament is provided between the pins. The former is easier to manufacture than the latter, and has the advantage that it can be retained well when it is mass-produced, and is used for fluorescent lamps in general. The latter is generally used for incandescent light bulbs. This is because the latter can be produced cheaper for an incandescent light bulb having a lower unit price, and thus the production cost of the product can be reduced.

By the way, since the discharge path length of a compact fluorescent lamp is considerably shorter than that of other fluorescent lamps, it is preferable to emit as much light as possible in a short discharge path. In the former method, the stem is inserted into the inner tube, and the filament is located at a position considerably inward from the end surface of the inner tube. Therefore, since no discharge is generated in the part from the filament to the end face of the inner tube, this part cannot contribute to light emission. On the other hand, in the latter method of the present invention, since the filament can be positioned near the end face of the inner tube, substantially the entire inner tube can be made to emit light.

[Brief description of drawings]

FIG. 1 is a basic configuration diagram of a light bulb type fluorescent lamp manufactured by the manufacturing method according to the present invention, FIG. 2 is a configuration diagram of parts before forming the mount, and FIG. 3 is a basic configuration diagram of a light bulb type fluorescent lamp. FIG. 4 shows another example of a method for fixing the introduction line. 1 ... Inner tube, 2 ... Filament, 3 ... Flare, 4, 4 '...
Introducing wire, 5 ... Exhaust pipe, 6 ... Metal wire, 7 ... Pressing piece, 8 ... Burner, 9 ... Outer tube valve.

Claims (1)

[Claims] 1. In order to reduce the disturbance of the positional relationship between the pair of lead wires due to the handling of the pair of lead wires, the pair of lead wires are fixed with a metal wire or a metal plate, and then the pair of the lead wires is fixed. A state in which a filament is spliced in the vicinity of the tip of the introduction wire and a pair of inner pipes each having one end open at a predetermined position in the hollow portion of the hollow mount (3) and the other end of each inner pipe. Of the filament, an introduction line and an exhaust pipe are prepared, and the mount, the pair of inner pipes are pinched from the mount, the pair of inner pipes, the filament and the exhaust pipe from the outside of the mount, filament,
A light-bulb-shaped fluorescent lamp, characterized in that an introduction line, a metal line or a metal plate and an exhaust pipe are integrated, and thereafter, the introduction line is cut at a predetermined position to separate the metal line or the metal plate from the introduction line. Manufacturing method.