JPS58184258A - Method of producing lamp - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method of manufacturing a lamp such as an incandescent light bulb,
In particular, it relates to the method of capping the sealed end of the pulp with gold.

[VL technical background of the invention]

In general, how do you manufacture lamps such as incandescent light bulbs? After the open end of the pulp is sealed with a mount C, a cap is attached to the sealed end, and at this time, a pair of lead wires led out from the sealed end are attached to the cap. They are connected to each other. That is, one of the lead wires is connected to the shell C of the cap, and the other IJ-
The lead wire is connected to the eyelet terminal of the cap through a lead wire insertion hole formed in the center of the cap insulator at the end of the cap. Therefore, when attaching the cap to the sealed end of the lead wire, guide the wire into the lead wire insertion hole.
It is necessary to derive it from the recorded account. 'For this reason, conventionally, a guide surface is formed at the end of the insulator to guide the free end of the lead wire by tapping it into the insertion hole. In the process of relative movement in the capping direction, the lead wire is guided to the lead wire insertion hole by the guide surface of Q/4 and led out from the cap, and at the same time, the lead wire is capped at the sealing end. It has become.

[Background technology issues]

However, in the US method, if the free end of the helJ-do wire has protection for cutting, etc., even if it has a ki-teno-f guide surface, this part will get caught on the chi-4 guide surface. As a result, buckling occurred in the lead wire, and there were cases where the lead wire could not be reliably drawn out from the base.

[Purpose of the invention]

This invention was made based on the above circumstances, and its purpose is to securely pass the lead wire through the lead wire insertion hole through the lead wire insertion hole when capping the cap on the sealed end of the pulp. The purpose of this invention is to provide a method for manufacturing a lamp that can be derived from.

[Summary of the Invention] That is, the present invention moves the cap relative to the sealed end in the crowning direction, and rotates the cap about the pulp tube axis as an axis relative to the sealed end. Alternatively, it is characterized in that the ridges are vibrated relative to the sealed end in a direction perpendicular to the crowning direction.

[Embodiments of the invention]

An embodiment of the present invention will be described below based on Figures 1 to 4.

Figure $1 shows an incandescent light bulb 1 with a portion cut away, 2 is a pulp, and 1 is provided with 3 m of filaments for sealing the open end of the pulp 2. This mount J is used to secure the sealed end 4 of the pulp 2. Further, 5 is an exhaust pipe, 6 is a cap attached to the above-mentioned sealing end [14, 7 m, r
b is a lead wire;
One lead wire 11 of b is led out from the sealed end 4 and electrically connected to the shell 8 of the base 6, and the other lead wire 1b is led out from the sealed end 4 and is connected to the lead wire of the insulator 9. It is electrically connected to the eyelet terminal 11 of the base 6 through the insertion hole 1o. The insulator 9 is made of an electrically insulating material such as glass to electrically insulate between the L shell 8 and the eyelet terminal 11, and the inner end of the insulator 9 is connected to the lead wire 7b. Lead wire insertion hole 10
A tapered east gate, formed at 1[i9a].

A method for attaching the base 6 to the sealed end 4 in the incandescent lamp 1 having the structure described above will be explained below with the addition of Figures 2 and 4.

First, as shown in Figure @2, the cap 6 is positioned facing the L side 1 of the sealed pulp 2 whose open end is sealed with the mount 3: the sealed end 4 thereof. At this time, the lead wire 1a connected to the shell 8 is bent in advance along the outer surface of the pulp 2, and the eyelet terminal 1
+7-)" [7b connected to the sealing end 4 is in a state of being led out straight from the sealing end 4. Then, the cap 6 is attached to the sealing end 4 in the downward direction. This mouth at the same time as moving relative to.

The gold C is rotated one rotation relative to the tube axis X of the pulp 2. As a result, the free end of the lead wire 1b is connected to the base 6.
As shown in FIG. 3, due to the lowering of the
When the guide 1ili91 comes into contact with the lead wire insertion hole 10, it receives a force toward the lead wire insertion hole 10, and at the same time, due to the rotation of the base 6, it receives a screwing action toward the lead wire insertion hole 10 as indicated by t. For this reason, as shown in Figure @4, the free port of the lead @yk is guided to the lead wire through hole 10, and is led out from the cap 6 through this lead wire insertion hole 10, and after this, the cap I is lowered. This cap 6 is attached to the sealed end 4 by two screws.After this, the lead wire 1b is connected to the first eyelet terminal 11, and the lead wire 11 is connected to the second shell 8C. This completes the production of the incandescent light bulb 1. 1 Therefore, L
According to the method of attaching the cap 6, the cap 6 is rotated relative to the sealing end 4, and thereby the lead wire 7b is
Since the free end of the lead wire 1b is designed to have a threaded action toward the lead wire insertion hole 10, in the unlikely event that the free end of the lead wire 1b
ν, etc., the free end 1 can be reliably guided to the lead wire insertion hole 10 and the lead N7b can be inserted therein without being caught on the tapered guide surface 9a, and this process can prevent defective products. can be prevented. In addition, as a result of experiments using the above-mentioned capping method, there were no occurrences of defective products.

Note that this invention is not limited to the above embodiments. For example, as shown in FIG. 5, while relatively moving the nozzle 6 in one direction of electrodeposition,
The sealing end portion 4 may be slightly vibrated in the direction of the arrow perpendicular to , and in this manner, the same effect as in the above-mentioned embodiment can be obtained. In addition, in this case, the free end of the lead wire 1b is not provided with a screwing action,
hki l! Due to vibration, this free end and the guide surface 9
□Catching with No. 1 is reliably prevented.

Further, as shown in FIG. 6, if the free end of the lead wire 1b is heated in advance with a burner or the like and rounded to form a spherical portion 12, reliability can be further improved. In this case, it is desirable that the outer diameter of the spherical portion 12 be about 3 to 4 times the outer diameter of the spherical part 12. Of course, it can also be applied to

〔Effect of the invention〕

As explained above, the present invention allows the cap to be rotated relative to the sealed end around the pulp tube axis while moving the cap relative to the sealed end of the pulp. It is characterized in that it vibrates slightly relative to the sealed end in a direction perpendicular to the crowning direction. Therefore, by combining the relative movement indicated by L and rotation or slight vibration, it is possible to prevent the own end of the lead wire from getting caught and reliably guide the lead wire into the lead wire insertion hole, and during this process. This can prevent the occurrence of defective products.

[Brief explanation of the drawing]

Figures @1 to @4 show an embodiment of the present invention, and @1
The figure is a partially cutaway side view of an incandescent light bulb, and Figures 2 to 4 are diagrams showing the electric wires in order of process. FIGS. 5 to 6 show other embodiments of the present invention, No. 5#A is a view showing another method of attaching a crown, and FIG. 6 is an enlarged view showing the free end of the lead wire. 2... Pulp, 4... Sealed end, 6... Raw, 7
a. 7b... Lead wire, 9... Insulator, 9a... Chee/4' work surface, 10... Lead wire insertion hole, X... Tube shaft. Applicant's Representative Patent Attorney Takehiko Dane Figure 1 Figure 2 Figure 3 Figure 4 Figure 5v! J

Claims (1)

[Claims] By moving the cap that is capped on the sealed end of the pulp in the capping direction relative to the sealing ridge t, the free end of one lead wire that has been completely led out from the sealed end is connected to the cap end. Part l:
The lead wire is guided by the tapered guide surface at the end of the insulator and led to the lead wire insertion hole at the center of the inside of the insulator, and the lead wire is led out from the cap through the lead wire insertion hole, and the cap is sealed. Method for manufacturing a lamp with a cap attached to the end - 2, while moving the cap L in the cap attaching direction relative to the sealed end τ; t rotated relative to the sealed end, or t
A method for manufacturing a lamp, in which vibrating vibration is performed relative to the sealed end in a direction perpendicular to the direction in which the lamp is attached.