JPS62154455A - Manufacture of lamp device with socket - 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 an improvement in a method for manufacturing a light bulb device with a socket, in which a wedge base type light bulb or the like is fitted into a socket using a jig.

[Technical background of the invention and its problems]

A light bulb device in which a wedge-based light bulb is fitted into a silicone rubber socket is used for lighting the meter panel of a car's dash board. This type of light bulb device, for example, as shown in FIG. 3, has a tube-shaped glass bulb (1) in which an internal reed 2) K tungsten filament (3) is stretched.

Pinch seal one end of the glass bulb and external lead (4) led out from the tambosten filament (3)
is bent into a pinch seal portion (5) to form a contact, and the end portion of the pinch seal portion (5) is fitted into a socket (6) and brought into contact with the contact piece of the socket. (
7) is a contact piece for connecting the socket (6) to an external circuit.

There are two methods of manufacturing the above-mentioned conventional light bulb device with a socket: a method of manually fitting the light bulb and the socket together, and a method of fitting the bulb and the socket using a jig.

In the manual fitting method, when fitting the bulb, the bent external lead of the bulb must be aligned with the contact piece of the socket so that the bulb fits vertically along the axis of the socket. If the above codes are difficult to match, and the above codes are incorrect, the contact piece of the socket may be bent, resulting in incomplete contact, the bulb's vinyl seal may be damaged, or the position of the bulb's external lead may shift. There was a risk that fatal problems such as insufficient contact could occur.

In addition, in the method using a jig, a perspective view of an example of a conventionally used jig is shown in FIG.

A large hole (9) for setting the socket in the center of the jig (8).
) and a small hole Ql for setting a light bulb.

Set the socket from the direction of arrow (A), and then
The light bulb was fitted and pressed from the direction shown in the figure.

Even with this method, it is difficult to accurately align the axis of the light bulb and socket with the axis of the hole drilled in the jig.

However, if the axes are mismatched, the contact piece of the socket may be bent, or the pinch seal of the light bulb may be damaged, resulting in insufficient contact or the light bulb not lighting up, as in the case of manual work described above. A problem was occurring.

[Purpose of the invention]

The present invention has been made to solve the above-mentioned conventional problems, and it is possible to easily and accurately manufacture a light bulb device with a socket, and to ensure perfect contact between the contact point of the pinch seal part of the 0M bulb and the contact piece of the socket. It is an object of the present invention to provide an improved method for manufacturing a light bulb device with a socket, which has an extremely low occurrence of defects.

[Summary of the invention]

In the present invention, when a light bulb and a socket are fitted together using a jig, a large hole is provided in the jig. In a freely movable sleeve,
The process of attaching the socket and the socket attached to the large hole sleeve mentioned above.

A method for manufacturing a light bulb device with a socket, comprising the step of press-fitting and fixing a light bulb through a small hole connected to the large hole.

[Embodiments of the invention]

The present invention will be described in detail. 1 and 2 are a partially cutaway front view of a jig used in the manufacturing method of the present invention and a plan view of the jig as seen from below.

A small hole (1) is drilled through the top and bottom surfaces of the jig αυ to insert a light bulb such as a wedge base type on a concentric axis, and a large hole (0th floor) connected to this is inserted into which a socket is inserted. A sleeve (14) with a diameter (dl) smaller than the diameter (D) of the large hole 0 is provided in the large hole Q3 formed on one side of the jig αυ, and the sleeve I is It can freely move on the horizontal plane. (l!9 is sleeve I
A socket is inserted into this hole (I!9) with an inner trap drilled inside. Also, the sleeve I is inserted in four directions perpendicular to each other,
Alternatively, springs are provided in three directions at 120° intervals. In FIG. 1, the springs in two of the former four directions are indicated by (IQ). (17) is a spring shaft adjustment screw.

A sleeve guide plate αυ is provided on the bottom surface of the jig αυ, and the sleeve guide plate α is fixed to the jig main body ■ by a guide plate screw (19).

The manufacturing method of the present invention using the above-mentioned jig property υ will be described. First, adjust the spring ae with the adjustment screw (171) so that the central axis of the sleeve α is almost in line with the central axis of the large hole α east of the jig (lυ).Next, adjust the jig. Insert the socket into the sleeve (14) from below in the direction of arrow (C).Furthermore, press fit the light bulb into the small hole C121 connected to the large hole (13) from above in the direction of arrow (E). Since the sleeve C14 inside the large hole Q3 is free to move freely due to the spring (llDK), even if the center axis of the pinch seal part of the light bulb does not coincide with the center axis of the opening of the socket, it will cross each other. Even if it is, the socket will follow the pinch seal part of the bulb,
It can be fitted smoothly, there is no bending of the socket contact piece, and the alignment between the light bulb contact and the socket contact piece is done naturally and accurately. There will be no contact failure or bulb malfunction caused by improper positioning of the external lead.

After fitting the two, the light bulb device including the socket is taken out from below the jig αυ and the fitting work is completed.

〔Effect of the invention〕

When fitting a light bulb and a socket using a jig, the present invention includes a process of attaching the socket to a sleeve freely movable in a large hole formed on one side of the jig, and Manufacturing a light bulb device with a socket, comprising the step of press-fitting and fixing a light bulb into a socket attached to a sleeve through a small hole formed on the other surface of the jig and connected to the large hole. In this method, a socket attached to a sleeve that can freely move on a horizontal surface is attached to a light bulb without bending the contacts of the socket or damaging the pinch seal, making the fitting work easier and improving productivity. This has the effect of resolving problems such as KiI bulbs not lighting up or insufficient contact.

[Brief explanation of drawings]

Fig. 1 is a front view of a jig used in the manufacturing method of the present invention with a partial cutaway, Fig. 2 is a plan view of the jig as seen from below, and Fig. 3 is a fixture and FIG. 4 is a front view of the apparatus and a perspective view of an example of a conventionally used jig. 1...Tubular glass pulp. 2...Internal lead. 3...Tungsten filament. 5...Pinch seal part, 6...Socket.

Claims (1)

[Claims] When fitting a light bulb and a socket using a jig, there are two steps: attaching the socket to a sleeve freely movable in a large hole formed on one side of the jig, and attaching the socket to the sleeve of the large hole. A method for manufacturing a light bulb device with a socket, comprising the step of press-fitting and fixing a light bulb into the socket through a small hole formed on the other surface of the jig and connected to the large hole.