JPH0443968Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an electrode device for a neon tube discharge lamp.

Conventional technology and problems In the conventional technology, the thin tube for degassing of neon tube discharge lamps was installed in the tube wall near the electrode part, as shown in Figs. 4 and 5, so that the neon The tube body and the capillary were often damaged due to collisions with the capillary tubes for degassing that protruded from the wall of the tube, and great care was required in handling them.

In addition, the protruding height of the gas venting capillary tube must be kept as small as possible, so if the discharge of a neon tube discharge lamp stops due to gas leakage after installation, the gas venting capillary tube must be used again. There was a problem in that the entire neon tube discharge lamp or the electrode part had to be replaced.

Also, Utility Model No. 60-80659 or Utility Model No. 50-
In the neon tube discharge lamp disclosed in No. 34941, in which a thin tube for degassing is provided at the end of the tube, the electrode holding part is provided inside the tube, so the holding part is small and weak in strength. While the thin tubes also need to be made thin, there is a risk that the lead wires serving as the terminals of the electrodes may come into contact with each other, and there are problems such as the need for insulation means.

Means for Solving the Problems Therefore, the present invention provides an electrode holding portion 3 having a width approximately equal to the diameter of the tube body 2 at the tube end of the tube body 2 of the electrode body 1 to be connected to the neon tube 10. The holding portion 3 is provided so as to protrude integrally along the longitudinal direction of the tube body 2.
The terminal 5 of the electrode 4 in the form of an open leg is integrally held by the holding part 3, and a capillary tube 6 for degassing that is longer and larger than the terminal 5 and protrudes outward is provided in the center of the holding part 3. An object of the present invention is to provide an electrode device for a neon tube discharge lamp.

Function The present invention provides an electrode holding portion 3 having a width approximately equal to the diameter of the tube 2 at the tube end of the tube 2 of the electrode body 1 to be connected to the neon tube 10 in the longitudinal direction of the tube 2. Since the large and strong electrode holding part 3 can firmly and reliably hold the electrode 4, the terminals 5 of the electrode 4 can be held integrally with the terminals 5 of the electrode 4 spaced apart in a spread-like manner. It is possible to prevent the terminals 5 from contacting each other, and a thin tube 6 for degassing can be provided in the center of the holding part 3 and protrudes outward to a larger extent than the terminals 5. It has the effect of allowing degassing work to be done at an external location where it cannot be touched.

Embodiments The present invention will be explained in detail with reference to embodiments shown below. In FIGS. 1 to 3, reference numeral 1 denotes an electrode main body of a neon tube discharge lamp, and a tube body 2 made of transparent glass with one side open. An electrode holding part 3 having a width approximately equal to the diameter of the tube 2 is provided at the end of the tube so as to protrude integrally along the longitudinal direction of the tube 2. The electrode holding part 3 integrally holds the open leg-shaped terminal 5 of the electrode 4, and a thin tube 6 for gas venting that is longer and larger than the terminal 5 and protrudes outward is provided in the center of the holding part 3. There is. The thin tube 6 is made of transparent glass,
The electrode holder 3 is fixedly provided so as to penetrate through the center thereof and open near the rear end of the electrode 4 inside the tube 2 with a tip 6a.

As shown in the third diagram, the electrode main body 1 includes tube bodies 2 as indicated by reference numerals 11 at both ends of a neon tube 10 that generates color.
The openings of the electrode body 1 are connected by heat welding, and the thin tube of one electrode body 1 is sealed by heat welding as shown at 6b, and then the gas is vented from the thin tube 6 of the other electrode body 1, and the thin tube 6b of the other electrode body 1 is sealed in the same manner. Seal with heat welding.

Therefore, even if the thin tube 6 of the present invention is configured to be much longer than the terminal 5 of the electrode as shown in the first figure, it will not get in the way during transportation or construction, and the thin tube 6 can be easily removed during degassing work. It is possible to work by bending the terminal 5 in any direction from the outside near the end, and when degassing again after long-term use, the thin tube 6 can be bent as shown by the broken line in Fig. 3. It is also possible to cut the gas in the middle 6c, vent the gas, and seal it again by heat welding.

Effects As described above, according to the electrode device for a neon tube discharge lamp according to the present invention, the tube end portion of the tube body 2 of the electrode body 1 to be connected to the neon tube 10 is provided with a tube approximately equal to the diameter of the tube body 2. An electrode holding part 3 having a width is integrally provided to protrude along the longitudinal direction of the tube body 2, and the holding part 3 holds the open leg-shaped terminal 5 of the electrode 4 integrally, and the holding part 3 has a configuration in which a thin tube 6 for degassing is provided in the center of the tube body 2, which is longer than the terminal 5 and protrudes outward, so that a large and strong electrode is provided that protrudes integrally along the longitudinal direction of the tube body 2. The electrode 4 can be held firmly and reliably by the holding part 3, and the terminals of the electrode 4 can be held together with the terminals 5 spread apart, thereby preventing the terminals 5 from coming into contact with each other. By providing a capillary tube 6 for degassing in the center of the holding part 3 that protrudes outward beyond the terminal 5, the degassing operation can be performed safely at an outer position where it does not touch the terminal 5 of the electrode. There is.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view showing the main part of an embodiment of the device of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a front view showing the main part of the embodiment, and FIG.
The figure is a partially cutaway front view of a conventional device.
The figure is a front view showing the embodiment. DESCRIPTION OF SYMBOLS 1... Electrode part main body, 2... Tube body, 3... Electrode holding part, 4... Electrode, 5... Terminal, 6... Thin tube, 1
0...Neon tube.

Claims (1)

[Scope of utility model registration request] Tube body 2 of electrode body 1 to be connected to neon tube 10
An electrode holder 3 having a width approximately equal to the diameter of the tube 2 is provided at the end of the tube so as to protrude integrally along the longitudinal direction of the tube 2, and the electrode 4 is held open by the holder 3. An electrode for a neon tube discharge lamp, characterized in that a leg-shaped terminal 5 is integrally held, and a capillary tube 6 for gas venting that is longer and larger than the terminal 5 and protrudes outward is provided in the center of the holding part 3. Device.