DE2224702C3 - Cathode ray tube with a magnetic deflection coil set and method of assembling it - Google Patents

Description

The present invention relates to a K _f barren ray tube with a magnetic Ablenkspulen- the
kit that includes a housing and a platform that holds 45. _{ie the task is} based

Due to a hardened adhesive material, it is rigidly attached to the wall. _{d help d}

given surfaces of the outside of the tube attached an anortoj ^ ^ _ez ügS ^ r tube is light and in, as well as a method for assembling emes such AWen ^ uto ^ beugh

Deflection coil set. Tustierune on the tube with a comparatively

Many cathode ray tube, such as color television 50 ^de ^ J * ™ ° g ^a "™ _{fe f ti t} can _be, with sehbildröhren, it is necessary on the outside geringm adhesives" nnenge Jews g _of

of the tubular bulb a magnetic deflection coil and cathode ray tube during to attach oil set. Such an extraction coil set, an extraction coil set una unchanged

contains horizontal and vertical deflection coils as well as the entire service life

one or more associated * cores. In color television 55 ^erh £ ™ ^ _{he will be} fi _n dung _S according to the gesehbildröhren characterized Ablenkspulensatz serves Algerian. .. ^ _n ^ ';! &*' Has a plurality of recesses, think of that, three electron beams in both east, that there * ^housing ™ _ ^ ™ _d ^ve ^ J _{1 V0M V} or vertical direction as well as horizontally across one? * «^ ™ ^^ \ £% £ L that between

blk Hf will jump the J ™ «™haben ° ™

Vertical direction as well as in hog 1 ^^^ \ £% £ L that between

to deflect the screen of the tube. The J ™ «™haben ° ™ is often used. reach in-

the position of the deflection coil set in relation to the tube So shear: den Verdungen ujd den η s ^ e hme,

ji dd Ablklnsau is then used in the ^ ¹ ^^ T ^ Kl

the location of the deflection coil g d j ^

adjusted, and the deflection coil sow will then in the ^ ¹ ^^ T ^ s adhesive material the depressions

adjusted position attached to the pipe. and JaB a gena _{d appropriate}

Various devices have already been filled in unu me vorspium,

kannnt by the Ablenkspulensatz rt in an overall ^{Ve. ief} ", ⁿ j ^en / ^et _o ^est ' ^g ^ _{,. h an ODtima} i _e setting

3 ^l 4

nd tilting of the deflection coil set on a tube as the only support for the platform

line J ^ fL; ,, Tube with relatively large changes and a set of deflection coils.

fclltfZUg aul C- ^ _Dar over addition, according to inputs from the inventive concept below with reference to

^ _n inögltc » _s ' _{sentence of} these in a relative of embodiments in connection with the

^ ^8iun ^ _lf , ^ _er 5 _{e <} iarf and thus economically and 5 drawing explained in more detail, it shows

-ring S- ^{eD are} fixed. F i g. i is a partially sectioned side view

(icher an der ivo " _the combination contains an arrangement of a cathode ray tube, a

In the part that recedes before g ^^. Platform and a set of deflection coils,

^{platforor mm} ° " _between the outside of the raw- Fig.2 an enlarged, partially broken away-c

_{, which} forms a comb ^ _plat form. The mentioned io sectional view of the arrangement according to FIG. 1, seen

, enkolbensι an _{d h} j _to i _n det in parts DIE in a plane 2-2 in F i g. 1,

. * _, .— «« ». Rial Deiinuc. _,. ρ i g. 3 is a sectional view in a plane 3-3 of FIG

pebennatenai ο «^ _{wrestling Tdl the pig 3 steals a sectional view in e} mer level 3-3 of the

Here can _a thin layer of hardened _fig

Use of a _{rigidity and} stability Fig. 4 an enlarged, partially broken away flebermatenal durcn ^^ ^ ^ more economical 15 sectional view of a somewhat broken off compared to

the platform in a converted embodiment,

in ^ - ^^ S of _the invention are F i g. 5 is a sectional view in a plane 5-5 of FIG

^^ enlarged, partially unp ^^^^^^^^^^^^^^^^^^^^,,

second g ^ehart fVSbS _n r of tube deflection

JiSS = "SS Α

l Sectional view in a plane 7-7 of the

₂₅ ^Fi l! Ie ⁶ in Fig. 1 shown arrangement contains a shadow mask color television picture tube 20 m, t an eva-

"£ fd" other versions,, "lie- V ™ ^^ dschi ™" at ^^ ™ * £

ώ5 = i

the projections extend with Sp.el or distance ^ raW ^ - ^^ S _en ^y . _Strahlerze ugungssy stern «ie

the result is a rigid, stable arrangement which sate _{a iu ang ^ the deflection spu} i _en

Adjustment of the deflection coil set with regard to the ^ ^e _t S ^Se _v ^ _ZURSweisi > _two pairs opposite each other.

rX allows and nevertheless the danger of accidental ™ _de ^V _r ° ^r ^ _agnetisches deflection field generating

Relocations of the deflection coil set bezugl.ch der 55 y ^ nde ^. ^^ ^ toroidw.cklung ^ the

magnetic deflection coil set then consists, üaij ui ^ ntm ,, r. .v-. _ ..

a platform is glued to the tube so that a 6o convergence / or color purity (not shown) is provided with a deflection coil fastened in it. The housing 32 with the oil set contained in it is arranged on the platform so that the deflection coil set can be attached to the position of the housing with respect to the platform on a platform in the following way: desired operating position of the deflection _{coil set} be FcG, _{c holder of the} deflection coil set plus the Tube is adjusted and that the device 65 _. . . . housing is then attached to the platform. example

This method enables an economical, in the F i g. 2 and 3 is an embodiment

quick and easy permanent assembly of one of the invention with the color television picture tube 20, the

Platform 29 and deflector assembly 30 are shown. The platform 29 is an annular component, that on the tricherföimigen part 23 of the tube piston is arranged. The platform 29 has a forwardly facing inner surface 33, the shape of which in essentially corresponds to a part of the outside of the funnel-shaped part. The basis of the platform 23 is arranged concentrically to the funnel-shaped part 23 and lies in a plane 34 which essentially runs perpendicular to the axis 35 of the tube 20. The inner surface 33 of the platform 29 has four re-entrant parts or depressions 36, which are at substantially equal angular intervals the inner surface 33 are distributed. Preferably, the recesses 36 are in the form of recessed segments of a circular ring, as shown in FIG. 2 is shown. In the case of a platform 29 for a 17 V color television tube For example, the recesses 36 can be approximately 44.5 mm long, 19 mm wide and 7.9 mm deep. the Platform 29 also contains first channels or holes 37 that penetrate the platform and each into the Depressions 36 open, as shown in FIG. 2 and 3 is shown. When the platform 29 in the above specified manner on the funnel-shaped part 23 rests, the four depressions 36 each form chambers 38 between the funnel-shaped part 23 and the platform 29. The chambers 38 are with a first cured adhesive material 39 substantially filled, which the platform 29 immovable with the funnel-shaped part 23 connects. This glue material is preferably a hot melt one thermoplastic adhesive. Suitable materials and melting temperatures are:

lcnkspulsatzes 31 matches. The deflection coil salt 31 is provisionally in the housing 32 by flexible hooks 41, which form parts of the housing wall, as can be seen from Fig.2 and 3, in a fixed position in the housing 32 held. The deflection coil set will be in the final, immovable position 31 on the housing 32 and this on the platform 29 by a second hardened adhesive material 42, which is located between parts of the platform 29 and the housing 32, attached. As a second adhesive material a hot melt thermoplastic adhesive material is also preferably used. Suitable materials and melting temperatures are:

material

(Trade names)

Manufacturer

Melting temperature
rature

( ⁰ C)

material

(Trade names)

Manufacturer

Melting temperature

( ⁰ C)

Versalonl 300 General Mills Chemical 92
Co., Minneapolis, Minn.

Versalonll38 the same 125

Versalonll65 the same 134

Resyln 34-2927 National Starch and Chemical Corp., New York

45

N.Y.

58

The first adhesive material must remain solid at the operating temperature of the tube is about 50 ° C and below the in-practice at about 150 ⁰ C temperature, occurring during the damage of the deflection or of the tube, are disposed around a re- Enable parts. The adhesive material must also, after solidification, attach well to the glass envelope and the platform, which is made of a plastic such as Noryl No. SE-0-940 (manufactured by General Electric, Schenectady, NY), may be liable. It is also desirable that the adhesive material set quickly to enable rapid and economical mass production. Preferably, the first adhesive material should set in about 15 seconds after the application is complete.

The deflection coil set 31 is mounted in the housing 32. Housing 32 has an annular portion with an interior surface 40 whose shape is substantially the same as that of a portion of the exterior of Ab-Versalon 1138 General Mills Chemical 125
Co., Minneapolis, Minn.

Versalonll65 the same 134

The second adhesive material must be at the operating temperature of the deflection coil set, which is approximately 100 ° C remain solid and melt below the temperature of around 150 ° C at which damage the baffle or the tube would occur to reuse the to enable different parts. If the second adhesive material 32 directly on the outside (Winding) of the deflection coil set is attached, it should preferably remain firm at 125 ° C. The The second adhesive material must also adhere well to platform 29 and housing 32 after it has hardened adhere, which, as mentioned, can consist of a plastic of the type specified above. Preferably, the second adhesive material should be used within about 30 seconds after insertion is finished, harden.

The platform 29 also has lugs or projections 43 which protrude from the platform 29 essentially parallel to the axis 35 of the tube 20 in the direction of the neck 24. In the illustrated preferred embodiment, eight projections 43 arranged in pairs are provided, and the pairs are distributed with substantially equal angular spacings on the upper side of the platform 29, as is shown in FIG. Preferably, the four pairs of protrusions are each formed directly opposite one of the four recesses 36 in order to ensure structural alignment that results in an integrity of the housing 32 with the platform 39 and the tube 20. Preferably, the opener, the platform 29 passing through holes 3 'between the projections of an associated pair In a 17-V color television picture tube 43 may au Vorspriinge z. B. protrude about 17.8 mm, be about 2.4 mm thick and have a length of about 12.5 mn along an arc of a circle with a radius of 65 mn.

The housing 32 also has troughs or recesses 45, each via a pair 44 of before Jumps 43 on the platform 29 are sufficient, as shown in FIGS. 2 and 3. The wells 45 sin < larger than the respective pairs of projections 44, so dal

7 8

the housing 32 should be approximately 7.9 mm prior to the insertion of adhesive. As a result, the inner material can be adjusted in the depressions 45 with respect to the flat surface 52 of the shape of the surface of the funnel-shaped form 29. The housing 32 can adapt to part 25 well. The lateral parts 58 a by a displacement perpendicular to the axis 35 of the and 58 b also allow the platform, at tube 20 in directions indicated by the arrows .Y and 5 strong heating or cooling and thus Ex- Y in F i g. 2 are shown, and parallel to the axis pansion or contraction of the combination 35 in a direction Z (Fig. 1) are shifted to bend somewhat. The platform 51 also has four openings around the axis 35 of the tube in one through a first perforations or holes 59, which are indicated by the double arrow R in FIG. In the direction shown in FIG. 2, recess 54 open out, as shown in FIG. 4 and 5 are rotated and set with respect to the axis 35 of the tube io.

20 in a by a double arrow Γ in F i g. 1 represents- When the platform 51 is in the manner described

direction can be tilted. The inside of the funnel-shaped part 23 of the tubular piston

the side walls 46 and the outer side is arranged, the recess 54 forms a chamber

Walls 47 of the recesses 45 delimit the 60 between the funnel-shaped part 23 and the

Shift perpendicular to the axis 35 and the tilting 15 platform Sl. At least a portion of the chamber 60 is

pung with respect to the axis 35. The end walls 48 of the with a first hardened adhesive material 61

Depressions 45 limit the rotation around the fills, which makes the platform immovable with the trich-

Axis 35, and the length of the part 23 in the recesses 35 ter-shaped. As an adhesive material 61

engaging projections 33 delimits the differences are preferably the same adhesive materials

Exercise along the axis 35. The connections 20 are preferably used as for the first adhesive material 39 of the

Depressions 45 so much larger than the projection - example 1.

pairs 44 that a movement of about 3.2 mm in The platform 51 has four lugs or fore

any of the directions mentioned is possible. Jumps 62 on which the projections 43 of the first

The second hardened adhesive material 42 fills the exemplary embodiment. Preferably are

in each case a pair of projections 44 surrounding recesses 35 four projections 62 are provided and with essentially

fungen 45 essentially from. In addition, the borrowed equal mutual angular distances

second hardened adhesive material 42 second holes 50 distributed the base surface of the platform 51 as from

between the inner side wall 46 of the FIG. 4 can be seen. In one embodiment,

Depressions 45 and the outer winding of the ben the projections 62 preferably one each

Deflection coil set 31 from (see Fig. 2 and 3) and 30 diameter of about 8.7 mm and a length of

thus binds the deflection coil set 31 rigidly and firmly about 18.7 mm. Preferably, the holes 59 go

with the housing 32. The second hardened adhesive "of the platform 51 each substantially through the

material 42 fixes the housing 32 and the deflection center of one of the protrusions 60 in place.

Coil set 31 in an unchangeable position permanently. The deflection coil set 31 is first provisionally in nent on the platform 29. The term "unchangeable 35 a housing 63, the housing 32 of the Beibar" is intended here to mean a position that corresponds to I except for game , with the formation of a deflecting duct removing or reheating the adhesive material order 64 assembled. The case has a ring that cannot be changed. In the case of a hardened adhesive-shaped part with four holding devices 65, which are attached to the material, no adjustments or changes in position are possible - a part of the outer surface of the deflection coil set. 40 31 fit. The deflection coil set 31 is indicated by flejj. 19 xil> le hook 66 temporarily to the Haltevorrichtun- ^{1 'e} gen 65 ^sp supported and takes up a fixed position in the

A second embodiment of the arrangement housing 63 a. The hooks 66 correspond to the

according to the invention is shown in FIGS. 4 and 5 show 41 of example 1 (FIG. 5). The final fixation

represents. The arrangement includes one of the platform 29 45 tion of the location of the deflection coil set 31 in the housing

according to Figure 2 and 3 corresponding platform 51, which is carried out by an adhesive material. what else to sew

will be discussed on the funnel-shaped part 23 of the tubular piston.

is ordered. The platform 51 is a substantially The housing 63 also contains troughs or diminution-shaped component and contains a forward indentations 67, which correspond to the indentations 45 of the first directed inner surface 52, the shape of which corresponds in the essential 50 exemplary embodiment and in each case one borrowed the shape of a part the outside of the protrusions 62. In the bottom of each United funnel-shaped part 23 is adapted. The base 53 recess 67 opens into a hole 68, as shown in FIG. f the platform 51 is as can be seen in the exemplary embodiment. The depressions 67 are larger than di <according to FIG. 1 concentrically on the funnel-shaped associated projections 62, so that the position de; Part arranged. The forward facing inner 55 housing 63 with respect to the platform 51 in front of the surface 52 of the platform 51 has a peripheral recess 54. The recess 54 preferably has a rials 61 into the recesses 67 can be adjusted width of a total of about 25 mm and a depth which. Preferably, the recesses 67 change in the following way: A mean larger than the projections 62 that a sliding part 55 of the recess 54 is about 15.7 mm deep and 60 of about 3.2 mm in each of the directions mentioned in the description, 12.7 mm, while the depth of the side parts of Example 1 is possible 56 a and 56 ft of 15.7 mm at the middle part 55 to the inside Sidewalls of the wells 6 'decreases to zero at the edges of the well 54. are formed by the outside of the deflection coil set. The platform 51 contacts the funnel-shaped part 31. Therefore, no holes, such as dl α · 23 at the extreme edges 57 and 57 of the comparison 65 b SO holes in the first embodiment erforder deepening 54. Hch.

The platform 51 also has lateral parts 58 α The recesses 67 are gehär with a second

and 58 ft, which, in cross-section, is a wall thickness of the adhesive material 69, each holding the protrusion

62 surrounds, essentially filled. The second adhesive material 69 also faces the outside of the deflection coil set 31 on the inner sides of the recess 67, as shown in FIG and 5, thereby fixing the deflection coil set in place 31 rigid and immovable in the housing 63. The second adhesive material 69 is preferably one of the second adhesive materials 42 of the first example are used. The second adhesive material 69 fixes the Housing 63 in a permanent, immovable position on the platform 51 and the deflection coil set 31 in a permanent, immovable position in the housing 63.

Adjustable bracket for the deflector assembly
Example 3

A third embodiment of the present arrangement is shown in FIGS. 6 and 7 shown. As F i g. 6 shows, this arrangement includes a platform 70 that works in virtually the same way as it does Hand of Example 1 has been described, firmly and immovably attached to the glass bulb 21 of the tube 20 is. The platform 70 contains a shallow depression or groove 71 and opening into this, continuous Hole punch 72. The groove 71 has in one embodiment preferably a depth of about 0.8 mm and a width of about 19 mm. The groove 71 is at least partially covered with an adhesive material 39 of the example si corresponding first hardened adhesive material 73 filled that the platform 70 with the funnel-shaped part 23 of the tubular piston connects. .

The deflection coil saddle 31_ is in a housing 74 mounted to form a deflector assembly 75. The housing 74 is toroidformig and through it split in Radialschhtz penetrating Dickennchning. The Radialschhtz is with a clamping device bridged, which contains a screw 76 with nut, which on shoulders on both sides of the separating winch bolt 77 are between the platform 70 and the housing 74 adjusting wheels 79, which have a hole Have a threaded hole and a toothed outer edge, screwed on. The deflector assembly 75 becomes S during assembly up to the adjusting wheels 79 via the Threaded bolts 77 are pushed, and then nuts 80 with washers 81 are put on the Ends of the bolts are applied and tightened until they rest against the housing 74, as shown in FIG 7 is shown so that the deflection assembly 75 is clamped and the housing 74 mechanically is adjustably connected to the platform 70.

Mount the deflector assembly on the platform

In the preferred method of assembling a deflection coil set 31 on the glass envelope 21 a Cathode ray tube, a platform is placed at the glass bulb 21. Preferably the platform should on its inside facing the piston 21 at least one recessed part (like the recess 36 in example 2) have the platform fits around the piston 31 and is adjusted so that it runs substantially perpendicular to the longitudinal axis 35 of the tube 20

A first liquid adhesive material, e.g. B. injected. A deflection arrangement with the deflection coil set 31 and the associated housing are then arranged next to the platform. The deflection is then bezü ₂ Lich the tube 20 einzustiert to the intended operating position. The deflector assembly is now attached to the platform. The attachment of the deflector on the housing may according to Figure ⁶ are not permanently attached and verstellbai a method A and a method B in accordance with Examples 1 or 2 or according to method C correspond

^P * ^{3] VAT taxable d}

40

₄₅

The deflection coil set 31 is clamped as described in the housing 74, and this w _rd then attached to the platform 70. The housing valley has a fixed, adjustable position with respect to the Sorm 70. For this purpose, the platform 70 has projections or threaded bolts 77, which are essentially parallel protrudes from the platform 70 towards the tube axis 35 in the direction of the neck 24. Preferably, three threaded bolts 77 are arranged at the same angular distances on the platform 70. 6 can be seen. The heads of the threaded bolts 77 are countersunk in the groove 71 and fixed by the hardened first adhesive material 73.

The housing 74 is penetrated by holes 78 which each correspond to one of the threaded bolts 77 and are used to mount the housing 74 on the platform 70. The holes 78 are each greater than Z associated threaded bolt 77, so that a trans-6 _S latorische Ablenkspulensatzes adjustment of the tube 20 is possible with respect to 31 as described in connection with F i g. 1 had been explained. On the Ge method A

funnel-shaped part 23 of the tubular piston,

^{h the first holes 37} then -ird a certain T ** l ™ ** ^{Ws least the ηπΊε1ζ} ^ 'W ^ ^m ™ ^g * ^{n Klebermatena S} _f * ^eing

? t ^mi " ^des ^ ^ns part of the four recesses T?« ^. ^P , ^{platform 29 and the} funnel shape J 'H ^ V ^ ^{DaS CFSte K! ebermate} " ^al ξ

^{smoke off and freeze l} \ Tl

ν ^{'is not} 3 ^ustierb arer location on the tubes 2 ^{(Vorz sweise} ^ * e ^is platform 29 to de,

d ^ r Abllkf "5 ^M ^ ^{described Μ} ° ^Π η er _A ^Ablen . ^kan ° ^rdnu ng 3» attached.
_We «£ n ^deflecting P ^ulensat ^ 31 and its housing 3,« S »« ™ ^e _t ^mer _u ^Ablen kanordnung 36 provisionally to ^ SiS '^ Γ ^dic deflecting arrangement 30 a. ^{is brought to} it. The pre-assembly de

^ ^by ' ^{that de} ^

de de.

is printed

flexible hook 41

Deflection coil set 31 _{6 leads in υβη} ,

the flexible hooks 41 in a substantially un

deformed position before the end of the deflection coils

snap back sat7.es31 and thereby the deflection coil set 31 hold in the housing 32, as shown in FIG. 3 is shown.

The deflection assembly 30 with the deflection coil set fastened in it by the flexible hooks 41 then placed in an electrical test device, not shown, which simulates a television receiver. the Deflection arrangement 30 is used in a device with which it is in the above-mentioned directions can be adjusted. Now a tube 20 is hardened through the hardened in the manner indicated first adhesive material 39 attached platform 29 so inserted into the testing device, not shown, that the deflection assembly 30 is at least approximately centered with respect to the axis 35 of the tube 20 and the pair of lugs 44 on the platform 29 engage in corresponding recesses 45 in the housing 32.

The tube and deflector assembly are now put into electrical operation, with the Screen 25 a test grid appears. The deflector assembly 30 is then moved in the directions described adjusted until the desired operating position of the deflector assembly 30 on the tube 20 is reached and the combination works optimally.

When adjusting the deflection arrangement 30 for a 17 V color television picture tube, the tube 20 with the deflection arrangement 30 arranged in the manner described above is brought into a horizontal viewing position. The test grid or test image is then generated on the screen 25 with the tube 20 and the deflection arrangement 30. The optimal operating position of the deflection arrangement 30 is determined by first moving the deflection arrangement 30 in the direction indicated by the arrow Z in FIG. 1 indicated direction axially with respect to the tube to set up the color centers on the screen 20 in a known manner. The deflection arrangement 30 is then rotated in the direction of arrow R (FIG. 2) until there are essentially vertical and horizontal grid lines. Now the deflection arrangement 30 is shifted vertically in the direction of the arrow Y (Fig. 2) in order to bring the different colored vertical and horizontal lines of the test image as much as possible to coincide, and then the deflection arrangement 30 in the direction indicated by the arrow Λ '(F i g. 2) shifted horizontally until the sizes of the grids of the different colors as a whole are essentially the same. The deflection arrangement 30 can furthermore be tilted in the direction shown by the arrow T in FIG. 1 with respect to the tube axis 35 in order to optimize the above-mentioned conditions.

The deflector assembly 30 and tube 20 are then in the aligned position in the device erected so that the axis 35 runs in the vertical direction and the neck 24 points downwards. this preferably takes place in the test device so that an operational check can still be carried out can, as will be explained. The vertical positioning of the tube is done by moving the tube 20 oriented and hold in a mounting device and then tilting the mounting device until the tube 20 and baffle assembly 30 are upright with the neck 24 facing downward. In the upright, adjusted position of the deflector assembly 30 and the tube becomes a second fluid Adhesive material 42 in the liquid state into the open end of each recess 45 up to its at least approximate Filling injected. With upright tube and recesses 45 that are open at the top the amount of the introduced adhesive material can be visually controlled and checked. Preferably the liquid second adhesive material is injected between the pairs of attachments 44 that it is on both sides flows around uie approaches 43 and thereby the pairs of approaches 44 surrounding depressions 45 essentially fills.

The second slide material 42 also flows through each of the second holes 50 until it is in contact with the outside of the deflection coil set 31. The holes 50 are thereby essentially filled. Even if the deflection coil set 31 does not fit snugly within the inner surface 40 of the housing 32, harden thin portions of the second adhesive material 42 so quickly that very little adhesive material through any gaps or irregularities between the deflection coil set 31 and the housing 32 will flow. The second adhesive material 42 cures within about 15 seconds, and can after about a minute the arrangement can be taken from the test device. For some types, the first adhesive material 39 are so tightly enclosed by the chambers 38 that the glass bulb at very low temperatures, such as at - 40 ° C, breaks. If this is at risk, it can be arranged according to Example 2 and Procedure B can be avoided.

After the second adhesive material 42 has been applied and cured, the assembly can be tested again before they are removed from the tester will. During this final exam, the deflector assembly 30 is preferably seated without additional ones Support freely on the tube 20, as is the case with the television receiver.

Procedure B

Method B is very similar to method A, the differences are primarily based on the other structure of the platform 41 and the housing 63. Referring to FIG. 4 and 5 becomes the platform 51 placed over the neck 24 on the tube 20, and a certain amount of the melted first Adhesive material is introduced into chamber 60 through holes 59. The first connector material 61 cools down very quickly when it comes into contact with the parts that are at room temperature hardens in less than 15 seconds.

The first adhesive material 61 introduced through the four holes 59 flows from the holes in both of them Directions until the streams meet and chamber 60 is substantially filled.

In general, the amount of the first adhesive material introduced can be controlled by the injection pressure the injection time and the injection temperature; steer. When the amount of each in the four lo rather 59 listed adhesive material is gestcuer so that it does not completely fill the chamber 60 fills, four separate bodies are created from the first Kieber material. The four separate bodies would be then essentially ge the first Kieber material 3 'in the four recesses of the embodiment measure Fig. 1 speak.

The body or bodies from the first adhesive material 61 in the chamber 60 take in a thickness i Direction towards the peripheral edges of the inner surface 5

13 14

the platform. The thinner edge parts of the KIe-shaped part 23 brought. Melted Kieberbermateriais 61 are also through the flexible material 69 is then pressed through the holes 72 in the side parts 58 a and SSb of the platform 51 a groove 71 to close the platform 70 on the tube. As a result, a slight movement is to be fixed permanently and immovably, as was described above for methods A and B to compensate for the platform. The platform 70 and the bolts 77 differed in expansion and contraction

the glass bulb, platform, and adhesive material are assembled together prior to attachment to tube 20 possible with temperature changes. set. The heads of the bolts 77 are

The deflection coil set 31 and the housing 63 countersunk in the groove 71, and the hardened first are preassembled before the adhesive material 69 thus produced fills the indentations in the essentials The deflector assembly 64 is borrowed from the tube 20 and thereby holds the threaded bolts 77 is brought. The pre-assembly of the deflector assembly in the platform 70 is fixed.

64 takes place in that the deflection coil set The deflection coil set 31 and the associated device

31 presses into the housing 63 and the hook housing 74 is bent into a deflection arrangement 75 to -66 (FIG. 5) until the deflection coil set 31 is completely assembled before it is attached to the pipe and rests on the holding devices 65. If will. The assembly of the deflection assembly of the deflection coil set 31 is properly seated in the housing 63, 75 by snapping the flexible hook 66 back into its 31 in the housing 74 and the clamping screw in a relaxed position in front of the end of the deflection coil set 76 with the The associated nut is tightened and thereby set 31 back, as shown in Fig.5. «The housing U cufs the hold-off and thereby holding the deflection coil set 31, the deflection coil set 31 clamped, running in the housing 63. Now the adjusting wheels 79 are placed on the thread

The deflection assembly 64 with the deflection coil set held in its by bolts 77 until it at least abut against the flexible hooks 66 and the holding device approaching the surface of the platform 70 is then a ₅ as shown in FIG. 7 is shown. The deflection arrangement 7 ₃ is then temporary

set that simulates a television receiver. The one holding device of a test device mon-deflecting arrangement 64 and a tube 20 with an on that the deflecting arrangement in the platform 51 attached at Beiihr are in the directions A, Y, Z, R and T mentioned on hand A to the example 1 described manner in the test device 30 is allowed to adjust.

inserted so that the projections 62 in the recess Now the tube is 20 m horizontal observations 67 intervene. The deflection assembly 64 is used in the testing position in such a way that the then adjusted to the intended operating position, such as threaded bolts 77 in the holes 78 of the housing 74 it was explained using Example 1. come to rest. The tube is so arranged

When the deflector assembly 64 and the tube 20 35 that their axis 35 is substantially centered through are adjusted in the optimal operating position, the deflection arrangement 75 will run. The bracket molten second adhesive material 69 through the device pushes the deflector assembly 75 against Holes 68 from the bottom of the depressions 67 - all adjusting wheels 79. The ones used for fixing splashes. The screw nuts 80 and washers 81 are preferably inserted melted second adhesive material 69 at the same time 4 ° then a couple of turns on each of the threaded bolts through the holes 68 of all four wells. The 77 screwed on but not tightened, so dat Introduced second adhesive material flows into the connection with a margin of about 3 to 3.5 mm to the Ge Depressions 67 and around the projections 62. In the housing 54 remains.

Practice will be the amount of second injected The tube and deflection coil assembly;

Adhesive material 69 is controlled so that it is fixed to 45 is now put into operation, and the deflector The placement of the projections 62 in the depressions 67, order 75, is described in Example A. sufficient. When using a second adhesive, adjust it until the optimal operating position de: materials 69 of relatively high melting point, as there is deflector assembly 75 with respect to tube 20 he was mentioned on the basis of example 1, solidifies that is enough. When adjusting the operating situation Material in depressions 67 in less than 30 Se- 50 of a deflector assembly 75 for a 17V color remote announce. The picture tube becomes the deflector assembly 75 as well

In method B, the same device is used axially in the direction of the arrow Z (Fig. 1) in Richtunj as in example A, in order to adjust the tube at the neck 24 of the tube 20 by injecting the second adhesive material 69 into the adjusting wheels 69, respectively to keep equal amounts rotated recesses 67 vertically. As the verti- 55 will be. As a result, the color centers of the dre fungen 67 are provided with the holes 68, electron beam can be aligned in a known manner on the second adhesive material 69 from bottom to top screen. The Ab will then be pressed into the depressions 67. This steering arrangement 75 in the direction of the arrow R (FIG. 6 also enables the depressions 67 to be filled, rotated around the vertical lines of the test image, even if additional chassis parts or simulated structures 60 the vertical direction of the screen and the horizontal parts of the test device an introduction of the second valley line of the test image to the horizontal direction of the adhesive material in the open ends of the display screen

_v ,, arrangement 75 in the direction of arrow Y (F 1 g. 6) around

er a ren C_ 5 _{5 eme} h _or j _ZO rU _a i _e translational movement in direction;

According to FIGS. 6 and 7, a platform 20 is above the arrow X (FIG. 6), as it had also already been pushed into the neck 24 of the tube and described with the example A, around the inside formed by the inside in contact with the funnel-three electron beam written notch

15 16

and to align the grids as a whole. however, such an embodiment is under

^s The deflection 75 may also by unequal circumstances an uneconomically large amount of a :;

^t adjustment of the adjusting wheels 79 in the direction of the Klebennaterial needed. With the preferred

Oezüglich * arrow T in Fig. 1 of the tilted axis 35 fühning ^ · beispieien will be the required structured 'to the position of the deflector to optimally 5 tural rigidity with a minimum of second silicic

mate. excess material reached. The amount of the second glue- *! After the desired operating position has been reached, the adjusting wheels with the nuts play regardless of the final position of the ^e 80 and washers 81 on the deflection assembly, deflection coil set housing and the platform.
i * 75 tightened to the deflection assembly 75 in the io. In the preferred embodiments, wurik

^{In the} adjusted position to be firmly attached to the platform 70, an adhesive material which can be melted by heating is vertically. The deflector assembly 75 can then be turned away from the, but other adhesive materials can also be used.

⁵ "holding device serving for adjustment, such as paraffin wax or epoxy resins, use

* "can be solved, and the assembly can then be re-established when the solidification or hardening time has elapsed

^{II should be} checked to ensure that during the 15th is not material. For the present arrangement * 6 there is no introduction of the second adhesive material 69 and for the present method it is only wich ^b relocation of the arrangement has taken place. tig that the adhesive material used is the ^{J. e} .... ". . th structural requirements are met. The glue

* General information material can also be used before assembly in the form of The pearls or tropics attached to the platform on the basis of the preferred exemplary embodiments

Although the platforms described contain a peri, instead of being pressed in in the manner described

^e "phere recess or groove or four recesses, or to be injected.

ⁿ "of course, however, other forms are also possible.

ⁿ 'possible, e.g. B. several parallel narrow grooves met color television picture tubes with several beam

the periphery of the molded inside. As a 25 generators or a beam generating system that

^ln Klebermater! il is used that solidifies quickly, several electron beams of different angles

'I "determine the length of the flow path and the order it provides. However, the invention is not based on this

^J1 "The setting time of this adhesive material is limited to one, but can also be used with others

^To some extent, the size and shape of the recesses. B. single-beam tubes, such as

Gen. Empirical studies have shown that 3 ° black-and-white picture tubes, or single-beam and multi-

"" the adhesive material colds and solidifies too quickly, use jet TV tubes. Which he-

* ^le than that it is inserted through a hole and the finding is therefore generally based on cathode ray

'* could be distributed all around. Applicable to any tube that has a deflection or focusing

^et > azimuthal groove therefore contain several holes for the device, which are in a certain position

^c h guidance of the adhesive material required. The volume 35 relating to the tube or the electron beams in

? ^The size of the indentations determines the amount to be attached to the tube. Particularly advantageous

^N necessary adhesive material. For economic reasons, however, the invention is for multi-beam tubes

^In general, the deepening of several grids by deflecting the elec-

^{Do not make s} or depressions larger than the beam across the screen of the tube

; ^cn sary, to provide the necessary structural strength and are generated 40th The permanent fixation described

; ^a ß to achieve rigidity. tion of the deflection coil set with regard to the

^3e "If the deflection arrangement is permanent and non-radiating the tube ensures an optimal

adjustably attached to the platform, can coincidence of the electron beam

^a ' ^z a peripheral tongue and groove can be used for superimposed grids.
in-

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509 687/237

Claims (1)

! ² Set up steering coil set on the tube and then to stick there. When the pipes are glued, it fills Claims: the adhesive generally covers the space between • x. t, ™ Hpm housing and tube. This requires 1. A cathode ray tube with a magnetic scßen AEM, _{"an elevating} i _ic he amount of material Ablenkspulensatz comprising a housing and a S _u e. un ~ - -— operation of the tube has an un platform, which is through a hardened and ™. ^ _{Ukeit and} stability of the adhesive material Ablenkspu rigidly to predetermined surfaces f ^UreI, _{"c", r} have _Fole g. In addition, the user is attached to the outside of the tube, thereby lensaizes u » _{of glue} uneconomical, characterized in that the housing (32, 63, dung f ™ ^ere ™ * _th arrangement is a part on which 64) several recesses (45, 67) has ^, η ι » ™ η **« ™ ^ _fasteni ^ _{by means of a} . which extend a corresponding number of vor ^^ Γ " _Γ 1 _η adhesive material on the outside of the jump (44, 62) .the platform (29, 51) so harder ^ e ^ a« ^ ^ _adjustment ^ that between the depressions and ™ ° «« * v _he connection between deflection and reaching into it Vorsprängen (44 62)? ^e? " ^IJ P. _{only relati} v limited extent vorgeieweils a gap remains and that a 15 tubes in a _{b (.j sp} j _e lsweise not or cured adhesive material (42 69) the Vertiefen- X ^ ™ ^ · ^ _in all dimensions of a gene (45, 67) fills and the projections (44, 62) difficult mogiiaj 1, in the corresponding recesses (45, 67) loading ^^ ^ε ™ ^η ^ ^υ ^ η '' the housing on the tube solidifies. T ⁵ l UmmP ~ and the deflection _{coil set in the} 2. Cathode ray tube with deflection coil set ao Jes zukomme = ^ then also fixed according to claim 1, characterized in that at home, cn _{kra {tsch} liquid fastening, the projections (77) are each provided with a thread ^ ^le ^ Vl ^e _nksoulensa sets by clamping and that on each ledge two of the ™ ^ι ™ ** £. '. _{that the} deflection coil set consists of threaded adjusters (79, but ^{dl * 2Sn v5rd} 71) are screwed on, between which the housing * 5 verses «^^ ^ ^^ _known , a platform can be firmly clamped. J * _An o _ensei , _e to glue the tube and then the st can be pinched. J _Δη ο _ΡΙ . ™ * ε to glue the tube and then the 3. Method for producing an arrangement of the -ju «" * »* _{the housing! Ie over} the tube from a cathode ray tube and a magne- ADien κ spincn ^ ^ _{platform to be} clamped. The kl h Ah 1 there to smear i i from a cathode ray tube ug ^ ^ _{platform to be} clamped. The table deflection coil set according to claim 1, for this purpose scmeDen _f j _t generally by means of characterized in that a platform (29, 30 Ank eberde ^P1 _m f / ^ _a ° _f f _end glue beschich-51, 70) is glued to the tube, that a bump mi of _{the tube and} ^ Housing (32, 63, 74) is arranged with a voreesehenen in this befe- ^ "'m fingers stigten Ablenkspulensatz (31) at the platform Platt form ^ s ^ g enes _allgem ei _n e that is arranged that the _n) Location of the ^{casing- The £ b} ^ nd damaging ^ ^ ^ plus the platform on a desired 35 ^d * f ^ ί ™ ^! ¹ "mounting for the platform and the operating situation of the Ablenkspulensatzes respect to the mcb ^ie ^« ^ g Xwenkspulensatz ™. The deflection tube is adjusted and that the housing then ^ JS ^ is irt'rfn.lich attached by him Anan the platform . SrSe ^ clamp attached to the tube. 40 Even with a deflector attached in this way coil set there is a risk that the deflection coil set is moved randomly and the intended