EP0072291A2 - Befestigungsunterlage für eine Fernsehröhren-Ablenk-Einrichtung - Google Patents

Befestigungsunterlage für eine Fernsehröhren-Ablenk-Einrichtung Download PDF

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Publication number
EP0072291A2
EP0072291A2 EP82401397A EP82401397A EP0072291A2 EP 0072291 A2 EP0072291 A2 EP 0072291A2 EP 82401397 A EP82401397 A EP 82401397A EP 82401397 A EP82401397 A EP 82401397A EP 0072291 A2 EP0072291 A2 EP 0072291A2
Authority
EP
European Patent Office
Prior art keywords
wedge
adhesive
fixing block
coils
thickness
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82401397A
Other languages
English (en)
French (fr)
Other versions
EP0072291B1 (de
EP0072291A3 (en
Inventor
Thilo Kittner
Rudolf Wagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Videocolor SA
Original Assignee
Videocolor SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Videocolor SA filed Critical Videocolor SA
Publication of EP0072291A2 publication Critical patent/EP0072291A2/de
Publication of EP0072291A3 publication Critical patent/EP0072291A3/fr
Application granted granted Critical
Publication of EP0072291B1 publication Critical patent/EP0072291B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
    • H01J29/823—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements around the neck of the tube
    • H01J29/826—Deflection arrangements

Definitions

  • the present invention relates to a fixing shim for the deflection coils, which is placed between the latter and the cone of the cathode ray tube, in particular, of a cathode ray tube for color television.
  • shims whose lower face is profiled.
  • the final bonding, outside of the adjustment machine, is carried out by injecting an adhesive through openings in the center of the profile. Due to the presence of these central openings for the injection of the adhesive, the insertion depth of these shims is less than about 50%, compared to the solution discussed above. Indeed, the opening of the profile must always remain accessible. This has the consequence that we are obliged to keep shims of different thicknesses in stock.
  • the present invention has set itself the aim of simplifying this wedging procedure by using, to achieve the advantages thereof, as far as possible, a single type of wedge.
  • the fixing block according to the invention comprises a mounting lug of the type specified above, the maximum height of which in its transition region of the mounting lug decreases approximately 60 times and in that it has an opening for the injection of an adhesive which is offset towards the free beginning of the profile.
  • the thickness of the shim decreases from 12 mm to, at most, 0.2 mm.
  • the shim is made of natural or synthetic rubber and of adopting a one-component silicone adhesive for bonding, if necessary.
  • the fixing block according to the invention combines the advantages of the two solutions mentioned above. This results in a wedge having an opening in its profile, and which makes it possible to apply the adhesive in an extremely rational manner, and whose insertion depth is large.
  • An adhesive is injected into the opening 4, in particular a hot adherent glue, which emerges at 7 and hardens.
  • the depth of insertion or insertion of the shims which, in the case of common profiled shims is approximately 20 mm, has been increased to approximately 28 mm.
  • this shim can be pushed into place, even when the deflection coil has tilted to the maximum.
  • Butyl rubber is particularly suitable for the manufacture of these shims because of its good adhesion properties.
  • chlorinated polyethylene, chloroprene and natural rubber the first two having, moreover, the advantage of being hardly flammable, even without the addition of 'an anti-inflammation agent.
  • the shims obtained have a Shore A hardness of around 65.
  • a double-sided adhesive strip 6 is used on the tab, as indicated. This can, for example, be of the 3M-412 type.
  • a silicone adhesive with a single component 8 is preferably used.
  • adhesives having advantageous extrusion properties such as this are particularly suitable. This is the case of the adhesives marketed under the names “Wacker Elastosil, type E41 and E43 or” TORAY-Silicone ".
  • a hot-adhesive adhesive 7 having good heat resistance is used which is marketed under the name "Versalon”.
  • This new fixing shim makes it possible to considerably improve the positioning of the deflection coil 1 on the cone 2 of the tube.
  • Stock keeping is also considerably simplified by the fact that only a standardized wedge model is used.

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
EP82401397A 1981-08-03 1982-07-27 Befestigungsunterlage für eine Fernsehröhren-Ablenk-Einrichtung Expired EP0072291B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813130697 DE3130697A1 (de) 1981-08-03 1981-08-03 Befestigungskeil
DE3130697 1981-08-03

Publications (3)

Publication Number Publication Date
EP0072291A2 true EP0072291A2 (de) 1983-02-16
EP0072291A3 EP0072291A3 (en) 1983-12-21
EP0072291B1 EP0072291B1 (de) 1987-10-28

Family

ID=6138484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401397A Expired EP0072291B1 (de) 1981-08-03 1982-07-27 Befestigungsunterlage für eine Fernsehröhren-Ablenk-Einrichtung

Country Status (5)

Country Link
EP (1) EP0072291B1 (de)
JP (1) JPS5832343A (de)
DE (2) DE3130697A1 (de)
ES (1) ES274653Y (de)
PT (1) PT75346A (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3939447A (en) * 1975-01-07 1976-02-17 Rca Corporation Spring mount for a cathode ray tube yoke
US4006301A (en) * 1976-01-16 1977-02-01 Zenith Radio Corporation Yoke adjusting apparatus for a color TV picture tube
FI59503C (fi) * 1976-04-19 1981-08-10 Hitachi Ltd Anordning vid faergbildroer

Also Published As

Publication number Publication date
DE3130697A1 (de) 1983-06-09
EP0072291B1 (de) 1987-10-28
EP0072291A3 (en) 1983-12-21
DE3277559D1 (en) 1987-12-03
ES274653U (es) 1984-07-16
ES274653Y (es) 1986-05-16
PT75346A (fr) 1982-08-01
JPS5832343A (ja) 1983-02-25

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