EP0370876A1 - Vorrichtung zum Befestigen der Entmagnetisierungsspule eines Fernsehgeräts - Google Patents

Vorrichtung zum Befestigen der Entmagnetisierungsspule eines Fernsehgeräts Download PDF

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Publication number
EP0370876A1
EP0370876A1 EP89403169A EP89403169A EP0370876A1 EP 0370876 A1 EP0370876 A1 EP 0370876A1 EP 89403169 A EP89403169 A EP 89403169A EP 89403169 A EP89403169 A EP 89403169A EP 0370876 A1 EP0370876 A1 EP 0370876A1
Authority
EP
European Patent Office
Prior art keywords
fixing
loop
foot
ray tube
hooks
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
EP89403169A
Other languages
English (en)
French (fr)
Other versions
EP0370876B1 (de
Inventor
Dominique Huerre
Hubert Gate
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.)
Thomson Angers SAS
Original Assignee
Societe dElectronique de la Region Pays de Loire
Thomson Television Angers 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 Societe dElectronique de la Region Pays de Loire, Thomson Television Angers SA filed Critical Societe dElectronique de la Region Pays de Loire
Publication of EP0370876A1 publication Critical patent/EP0370876A1/de
Application granted granted Critical
Publication of EP0370876B1 publication Critical patent/EP0370876B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J29/003—Arrangements for eliminating unwanted electromagnetic effects, e.g. demagnetisation arrangements, shielding coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/0007—Elimination of unwanted or stray electromagnetic effects
    • H01J2229/0046—Preventing or cancelling fields within the enclosure
    • H01J2229/0053—Demagnetisation

Definitions

  • the present invention relates to a device for fixing a television demagnetization loop.
  • the subject of the present invention is a device for fixing a demagnetization loop of a cathode-ray tube of a television set, a device which is simple and inexpensive to produce, and which makes it possible to automate the optimal fixing of the loop, without requiring manual intervention during or after fixing, this device does not depend on the dimensions of the cathode ray tube.
  • the demagnetization loop fixing device comprises, for each fixing point of the loop, a workpiece - support comprising at least one hook, workpiece support mounted free to rotate.
  • the fixing points are preferably located near the four corners of the cathode ray tube slab.
  • these four fixing points are the fixing screws of the cathode ray tube in the cabinet of the television set.
  • the fixing devices are mounted to rotate freely on the head of the tube fixing screws.
  • the support piece which is advantageously molded in plastic material, comprises two hooks formed on a cross member symmetrically with respect to the junction of this cross member with a support bracket whose foot comprises means allowing it to be fixed, free to rotate, at the attachment point of the loop.
  • the demagnetization loop fixing device 1 shown in the drawing is mounted on the head 2 of a screw 3 for fixing the cathode-ray tube (not shown).
  • This screw 3 for example of the self-tapping type, passes through the hole of a fixing ear 4 (partially shown in FIG. 2) formed or welded on the anti-implosion belt of the cathode ray tube, and is screwed into a suitable location in the front of the TV.
  • the anti-implosion belt has four such fixing ears located approximately on the diagonals of the slab of the cathode-ray tube on which it is placed.
  • the head of a cathode ray tube fixing screw generally has the shape of a hexagonal block.
  • this screw is modified as follows.
  • This extension 7 has the shape of a grooved rod.
  • the demagnetization loop fixing device proper consists essentially of a foot 9, a bracket 10 formed on the foot 9, a cross member 11 formed at the end of the bracket 10, two hook devices 12,13 formed at the ends of the cross member 11, and of a guide bar 14 formed on the foot 9. All of these elements of the device 1 are preferably made by molding of plastic material.
  • the foot 9 has the shape of a substantially square plate whose central zone 15 is slightly convex (as seen from the stem 10), is circular in shape, has a reduced thickness, and has an axial hole whose diameter is substantially equal to the diameter of the part 7A of the extension 7.
  • the area 15 of the foot 9 is split crosswise by two diametrical slots perpendicular to each other, thus delimiting four circular sectors.
  • the zone 15 thus forms a retaining ring for fixing the device 1 to the extension 7 of the screw 3. It suffices to force the device 1 onto the extension 7, the grooves 8 causing the four circular sectors of the zone 15 to bend.
  • the bracket 10 is formed in the middle of one of the sides of the foot 9, perpendicular to this foot.
  • the cross member 11, formed at the end of the bracket 10, consists of two identical arms 11A, 11B arranged symmetrically with respect to the bracket 10, perpendicular to the latter.
  • the hook devices 12, 13 each essentially comprise a body 16, 17, respectively, in the form of a rectangular bar, a hook 18, 19 respectively, formed at the end of the bar near its connection with the arm 11A, 11B, and a support tab 20,21, respectively, formed at the other end of the bar.
  • the bars 16,17 are parallel to the bracket 10, directed towards the foot 9, and their length is substantially equal to that of the bracket 10.
  • the bars 16,17 and the arms 11A, 11B are coplanar.
  • the hooks 18,19 are in the form of folded tabs. These tongues comprise a flat part 18A, 19A connected by a bent part to the end of the corresponding bar 16, 17, on the side of the junction of the latter with the arm 11A, 11B respectively.
  • the flat parts 18A, 19A make an angle of about 30 to 50 ° with the plane of the bars 16, 17, and are directed approximately towards the junction between the foot 9 and the bar 14.
  • the length of the flat parts 18A, 19A is equal or slightly less than half the length of the bars 16,17.
  • the respective dimensions of the flat parts 18A, 19A of the bars 16, 17 and the value of the angle formed between said flat parts and the bars are a function of the diameter of the cable 1A, forming the demagnetization loop, and of the space which is has in the cabinetry of the TV.
  • the length of the bars 16.17 is approximately 25 mm
  • the length of the flat parts 18A, 19A of approximately 10 mm and that of their angle relative to the plane of the bars 16.17 of approximately 40 ° for a 1A cable with a diameter of approximately 6 to 10 mm.
  • the support tongues 20,21 are formed in the extension of the bars 16,17, their ends being bent at 90 ° opposite to the screw 3.
  • the length of these tongues 20,21 is such that when the device 1 in place on the head 2 of the screw 3 and that this screw is screwed in place to fix the cathode ray tube, the ends 20A, 21A of these tongues are just in contact with the ear 4.
  • the length of the bar 14 is substantially equal to that of the bars 16,17.
  • This bar 14 has a first rectilinear part 14A parallel to the bracket 10, which extends approximately up to the height of the end 18B, 19B of the hooks 18,19, and a second part 14B, also rectilinear and parallel to the bracket 10, making an angle of about 10 to 20 ° with the first part, this second part deviating from the bracket 10.
  • the junction between the parts 14A and 14B is referenced 14C.
  • the narrowest part of this opening 22 is located between the junction 14C and the ends 18B, 19B of the parts 18A, 19A.
  • the width L of this narrowest part is slightly less (about 1 to 3 mm) than the diameter of the cable lA.
  • the loop demagnetization can be simply introduced by an automaton in these four fixing devices without having to be positioned with exactitude, and places itself in the correct position, that is to say symmetrically with respect to the a xes 0x, Oy of the screen, as close as possible to the anti-implosion belt, and with sufficient tension of the buckle.
  • the parts 1 of the invention are standard whatever the type and size of the cathode ray tube, the fixing screws 3 being standard.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Clamps And Clips (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
EP89403169A 1988-11-24 1989-11-17 Vorrichtung zum Befestigen der Entmagnetisierungsspule eines Fernsehgeräts Expired - Lifetime EP0370876B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8815330A FR2639409B1 (fr) 1988-11-24 1988-11-24 Dispositif de fixation de boucle de demagnetisation de televiseur
FR8815330 1988-11-24

Publications (2)

Publication Number Publication Date
EP0370876A1 true EP0370876A1 (de) 1990-05-30
EP0370876B1 EP0370876B1 (de) 1994-03-30

Family

ID=9372197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89403169A Expired - Lifetime EP0370876B1 (de) 1988-11-24 1989-11-17 Vorrichtung zum Befestigen der Entmagnetisierungsspule eines Fernsehgeräts

Country Status (6)

Country Link
US (1) US4971273A (de)
EP (1) EP0370876B1 (de)
JP (1) JPH02174485A (de)
DE (1) DE68914258T2 (de)
FR (1) FR2639409B1 (de)
HK (1) HK25995A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4000178A1 (de) * 1989-01-18 1990-09-20 Hermann Dipl Ing Walter Vorrichtung zum befestigen von materialien auf metallstiften
US7835948B2 (en) * 2006-09-07 2010-11-16 The Golub Corporation Floral network methods and systems for processing floral arrangements
US10132428B1 (en) * 2017-07-19 2018-11-20 Facebook, Inc. Cable management clip
US12078271B2 (en) * 2022-01-19 2024-09-03 Diversitech Corporation Brackets and methods of manufacture and use thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262662A (en) * 1963-12-09 1966-07-26 Raymond A Cable fastener
US3643020A (en) * 1970-03-09 1972-02-15 Sylvania Electric Prod Picture tube mounting means
FR2180067A1 (de) * 1972-04-14 1973-11-23 Tokyo Shibaura Electric Co
DE8716945U1 (de) * 1987-12-21 1988-02-25 Lackdraht Union GmbH, 2838 Sulingen Farbbildröhre mit Entmagnetisierungsspule
EP0281759A1 (de) * 1987-02-12 1988-09-14 EWD Electronic-Werke Deutschland GmbH Einrichtung zur Halterung der Entmagnetisierungsspule an der Bildröhre

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE342688C (de) *
US959076A (en) * 1909-09-30 1910-05-24 John T Scanlon Trolley-wire hanger.
US1218181A (en) * 1915-02-24 1917-03-06 John W Homer Insulator-knob.
US1585846A (en) * 1921-11-14 1926-05-25 Mid West Box Company Mailing holder for phonograph records
FR930151A (fr) * 1945-07-03 1948-01-19 Detroit Harvester Co Dispositif de fixation de pièces cylindriques, telles que condensateurs, fusibles, etc.
FR1366886A (fr) * 1963-06-04 1964-07-17 Raymond A Attache permettant le montage d'objets tels que des câbles ou des tubes sur un support

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262662A (en) * 1963-12-09 1966-07-26 Raymond A Cable fastener
US3643020A (en) * 1970-03-09 1972-02-15 Sylvania Electric Prod Picture tube mounting means
FR2180067A1 (de) * 1972-04-14 1973-11-23 Tokyo Shibaura Electric Co
EP0281759A1 (de) * 1987-02-12 1988-09-14 EWD Electronic-Werke Deutschland GmbH Einrichtung zur Halterung der Entmagnetisierungsspule an der Bildröhre
DE8716945U1 (de) * 1987-12-21 1988-02-25 Lackdraht Union GmbH, 2838 Sulingen Farbbildröhre mit Entmagnetisierungsspule

Also Published As

Publication number Publication date
FR2639409B1 (fr) 1990-12-28
US4971273A (en) 1990-11-20
HK25995A (en) 1995-03-10
DE68914258T2 (de) 1994-07-21
DE68914258D1 (de) 1994-05-05
FR2639409A1 (fr) 1990-05-25
JPH02174485A (ja) 1990-07-05
EP0370876B1 (de) 1994-03-30

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