JPS58189947A - Contact piece - 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 The present invention relates to a contact piece provided with a metal contact member attached to a coil frame of a deflection device of a television picture tube.

The contact arrangement of the deflection coils of such television picture tube deflection devices is well known. According to the prior art, the contact piece is designed as a separate web-like plastic part and a U-shaped wire clip is formed by injection molding. Each such contact piece has two openings and is adapted to slide over two resilient members provided with hooks injection molded into the coil shank.

The conventional contact arrangement for the deflection coil of this deflection device is reasonably adequate. However, it is preferable to increase the number of contact elements on the contact piece and to design the contact elements so that they are not only suitable for solder connection configurations but also for Bragg connections. In this respect, prior art configurations are not suitable for this purpose due to insufficient stability of the contact bottle and the contact piece.

It is an object of the present invention to design a contact piece in a coil frame of a deflection device of a television picture tube in such a way that, in addition to a cost-effective manufacturing method, the above-mentioned quality improvements are achieved. There is a particular thing.

This object is achieved in the case of the invention by designing the contact piece as a strip part integrally formed by injection molding with the coil frame and by attaching the contact element thereto.

Claims 2 to 4 describe how the contact element is advantageously implemented and attached to the contact piece.

Next, the present invention will be described in detail based on the accompanying drawings.

FIG. 1 shows the back side of the coil frame 1. The back side of this coil is what is seen on the internal deflection device when looking at the back of the television picture tube. The neck of the television picture tube is positioned within the opening 2 of the coil frame, and the coil frame itself as well as the deflection device are flapped over the neck of the tube. FIG. 2 shows a coil frame like that shown in FIG. 1, but in side view.

As seen in FIGS. 1 and 2, the contact piece 3 (contact member omitted) is formed integrally with the coil frame 1 made of plastic material by injection molding.

In the embodiment of the contact piece 3 shown in FIG. 1, a guide groove 4 is provided. As can be seen in FIG. 6, the contact piece according to the overhanging embodiment is suitable when using a contact member 5 which is U-shaped and has a mouth-like opening at the bottom.

A contact member according to such a design can be easily inserted into the guide groove 4 of the contact piece 3 by machine. As shown in FIG. 6, if the web 6 of the mouth-like opening is provided with a hook-shaped end, the contact members 5 will be hooked to each other as soon as they slide.

However, the contact member 5 could also be designed as shown in FIG. This type also has a U-shaped design and a flap 7 at the bottom. When the U-shaped contact member is provided with a flap 7, the contact member 5 can be inserted by inserting the flap 7 into a corresponding opening provided in the contact piece, and the portion of the flap that protrudes to the back of the contact piece can be twisted. .

However, in the case of the embodiment shown in FIG. 5, the contact member 5 consists of a U-shaped pin 8 formed within the contact piece 3 by injection molding. This can be achieved, for example, by continuously inserting as many wires as contact members into the injection molding tool without interruption. Next, these wires together with the contact piece 3 are coated with paint, cut to a predetermined length, and bent into a U-shape.

[Brief explanation of drawings]

Figure 1 is a detailed view of the back side of the coil frame, Figure 2 is a side view of the coil frame shown in Figure 1, Figure 6 is one embodiment of the contact member, and Figure 4 is another embodiment of the contact member. , FIG. 5 respectively show still other embodiments of the contact member. 1: Coil frame; 2 opening; 3: Contact piece; 4: Guide groove; 5: Contact member; 6: Wap; 7: Flap; 8
:bottle. Representatives: Asamura and 4 people

Claims (1)

[Scope of Claims] (1) A contact piece that is attached to a coil frame of a deflection device for a television picture tube and is provided with a metal contact member, and the contact piece (3) is provided with a metal contact member. A contact piece, characterized in that it is designed as a strip formed in one piece by injection molding and on which the contact element (5) is deposited. (2. In the contact piece according to claim 1, the contact piece (3) is provided with a guide groove (4), and the guide groove has a U-shaped opening in the bottom thereof. Mold contact member (5)
A contact piece characterized in that a contact piece is attached to the contact piece. (3) A contact piece according to claim 1, wherein the contact piece (3) is designed as a web with an opening, the opening having a flap (7) provided on the bottom of the U-shaped contact element. )
is inserted and twisted on the back side of the contact piece (3). (4) A contact piece according to claim 1,
The contact piece (3) is characterized in that it is designed as a web in which a plurality of straight bottles (8) are formed by injection molding, which are later bent into a U-shape.