JPS63257170A - Anode fitting type getter - Google Patents

Abstract

PURPOSE:To facilitate the fitting of a getter fitting plate to an anode connector by winding and fixing the fitting piece of a shape memory alloy fitted directly or indirectly to a getter to the anode connector supported on a funnel. CONSTITUTION:When a power supply 10 is turned on via a switch 9 to heat the fitting piece 8 of a shape memory alloy, the fitting piece 8 is deformed into a hook shape. When this hook portion is hooked on an anode connector 2 and the heating is stopped and the fitting piece 8 is cooled to the normal temperature, the fitting piece 8 is wound on the anode connector 2 and can support a getter 5 firmly by the shape memory function. The getter can be fixed workably, easily, and firmly without requiring the fitting precision to the anode connector and the skill.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a getter for attaching an anode to a picture tube such as a CRT.

[Conventional technology]

FIG. 4 and FIG.
The conventional anode mounting method shown in the publication shows a cross-sectional view and a plan view of the getter mounting state.
2 is the funnel of the picture tube, 2 is the anode connector in which the Niragle 3 is embedded and supported in the funnel l, 4
5 is a getter mounting plate made of a metal plate with spring properties attached to this connector 2, and 5 is a getter 16 attached to one end of the 4 vine mounting plate 4, which is attached to the getter mounting plate 4. The slit-like attachment for support is a hole.

The anode mounting type getter constructed as described above is mounted by fitting the getter mounting plate 4, which has the getter 5 onto the anode connector 2, into the hole 6. The other end of the getter mounting plate 6 is fixed in spring contact with the funnel 1.

[Problem that the invention seeks to solve]

Conventional anode mounting method The getter is constructed as described above, so accurate mounting requires precision when fitting the getter mounting plate 4 into the anode connector 2, and the mounting requires skill and skill. had the problem of requiring a jig.

This invention has been made to solve the above-mentioned problems, and aims to provide an anode mounting type getter that allows easy attachment of a getter mounting plate to an anode connector.

[Means for solving problems]

The anode mounting type getter according to the present invention is such that a mounting piece made of a shape memory alloy is attached directly or indirectly to the getter and is fixed by being wrapped around the anode connector.

[Effect]

In this invention, a mounting piece made of a shape memory alloy is heated to be deformed into a hook shape and hooked onto the anode connector, and then the mounting piece is heated to room temperature so that the anode connector is connected to the anode connector due to the shape memory effect. It can be wrapped around and fixed.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure shows a cross-sectional view of the anode mounting method and the getter mounting state according to the present invention. In the figure, 7 is a getter mounting plate supporting the getter 5, and 8 is this getter mounting plate 7.
A wire-shaped attachment piece made of a shape memory alloy is fixed to the getter 5, and the tip end of the attachment piece 8 wraps around the anode connector 2 to fix the getter 5. Note that 1 is the funnel of the picture tube, and 3 is a nira-glu that is embedded in the funnel 1 and fixes the anode connector 2.

The anode mounting method according to the present invention configured as described above is carried out by first heating the shape memory alloy mounting piece 8 by applying power to it via the switch 9. , the attachment piece 8 is deformed into a hook shape. When this hook portion is hooked onto the anode connector 2, heating of the mounting piece 8 is stopped, and the mounting piece 8 is allowed to cool down to room temperature, the mounting piece 8 wraps around the anode connector 2 due to shape memory effect as shown in FIG. 5 can be strongly supported.

In addition, in the embodiment, the shape memory alloy mounting piece 8 is the getter 5.
Although it is attached via the Kr vine attachment plate 7, the attachment piece 8 may be attached directly to the getter 5.

〔Effect of the invention〕

As explained above, according to the present invention, the shape memory alloy mounting piece attached directly or indirectly to the getter is wrapped around the anode connector and fixed, so attachment to the anode connector requires precision. It can be easily and firmly fixed with good workability without any sharpness or skill, and is highly reliable.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the anode mounting method according to an embodiment of the present invention and the getter mounting state, Fig. 2 is a plan view of the mounting piece in a heated and deformed state, and Fig. 3 is the mounting piece attached to the anode connector. FIG. 4 is a sectional view showing a state in which the winding is fixed, FIG. 4 is a sectional view showing a conventional anode mounting state and a getter mounting state, and FIG. 5 is a plan view of the getter mounting plate. ■... Funnel, 2... Anode connector% 5.
...Getter, 7...Getter mounting plate, 8...Shape memory alloy mounting piece. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] In the anode-mounted getter attached to the picture tube,
An anode-mounted getter characterized in that a shape-memory alloy mounting piece attached directly or indirectly to the getter is wound around and fixed to an anode connector supported on a funnel.