DE1547073A1 - Tape recorder - Google Patents

Description

Bftg.-Rv. 120 658

Soeilti d · Fabrication d'Inatrumtnts dt Ktiurt (3 · Ρ · Ι _β Μ) _β 13 »avenue Maroel Ranolfo Garnier,
-91- MASST - (Betonne) France

Tape recorder

The invention relates to a tape recorder for a tape, since a motor is driven to a magnetic head with over guides including a weighing coil and one The pickup coil was running

The known devices have a verhlltnitmässlg groaaen Rauiabedarf, wa · in some Anwendungegebieten, beitpiela, in the Baumfah ^ ₀ is disruptive "The invention has the object tu reasons a tape recorder is creating bu, atark at dea the space required compared to the known devices? Is trringert which, however, can be installed in the construction eftfaoh itt! '

Task is invention8g «B> äss daduroh solved, daa ·

Qx * undp3.afcfe * n ^ os? Done aind _# being on the eraten

& 09844/1537

SAD

(Us Abwl0k8l9pu ¹ > · νηΛ dl »on» .takelt pul »koaiial and rotatable ang9F & ie £ ilad, ravi twa * · the« int on the top and did other «on the underside dir 3 run»! Plate, on the wide αI ¹ UAdPlatfc9 all the path of the bandet swleohen Λ & ν Abwlekelspule and the Aufwioksispule atiamiendan guides, the cheese ^ k ^ pf un4 tint preparation according to the "R * geIyng the band" tension iualndeet muann beetlnatlnmten Barelsh his e # h * n alftd »» nd the drife ^ s O ^ un ^ plate dan only

At feil ibesuatt lids 3 »τ- .ypyli ^ düreh der · il

IFa «Ina

dta Magritiikepf sielis ^ sisf ^ dlien, imafehängis damn _t t »b and possibly in ^ eäeher A ^ asiphlre dai Qerl% works" is * ur regulation of the tape span for each reel, one pfc3tsdalekä? i33he El "? isht ^ ng and one flexible, the so ^ «iash-i ^ bbiF is _t ö * ga it the Liehibünöel day ph © t © el« ktrisähsR Sinriehtung swisehen the Llshtquelle and the Liehtei2 $ fifTg @? Imterbreshen can »The invented mass Tsr.bandge? lfc is ss ^ ohl dare this from the Ataaa» phase independent 3tau »ration of the band tension and band» reserve as also «its # n s-tlnes little house-needy use on board ^! take or space · © hi ff en

The following is the invention on the basis of Seiehraing shown AuafOhmngsbeisplele explained in one.

909844/1537 ^BAD ofu _G i _Nal

η «c

Figo 1 »ine p <n * rp«! «Tivieeh AfeFgest-ellfce Looks at ··

f at des? from inventing the clarity of the some elements are omitted,

Flg » £ tin * DFattfeiQht the built into @in Gshäue ·» Figo 3 € <ff; o pi * r-ip »ktiviceh dapg ^ ß ^ ellts view of a

des Qei * ät @ s _r ,

? eleventh

Fig »5 the Diitiafah de? shown in FIG Base plate,

Fig * 6 "ine looks at the back of the in Fig. 4 Darge put the base plate,

7 shows a section along the line VII-VII of
FIg ₀ * _t

Fig. 8 shows a visual appearance of the

dee

The T6Bbcn £ ge? £ .t «feis on it base plates on which all batti« il # as, α tisvätsfi se fenge earthed (Jäps eis * uf den
Orundplattan rer whose fusfits ^ inttau can be changed _e
whereby oils fichlleeslioh «wipe manohtn components of the

909844/1537

BATH ORIGINAL

fts «Tii8feKilÄib:; iM \ cl-s-ktjpisßh®

© in® ßjpundpS & ^ i fea: -s ELRs AEGT @ rotatably mounted on "and sin © Abwiekelsptsle, both at the same mmr ale itlne © foerhalb and forming" uEites ¹ -halb the Qrundplft.tte _s ange6rdnet eindo

The dispute Qrunaplstt * "rSgt all guides! Ttel that beetiromen the tape run BKiehenn the Ab" and Wiokelspule, a drive for the run of the tape ", a Vorriehtung sun rules of the Bimdspoimung at least within a certain range of its path and a magnetic head ₀

The third base plate carries a motor for the drive the coils and a device to control the drives of the coils through the motor *

An implementation of this is free of charge in Figures 1 to 8 3 ₆

The first "u! Fuitdplfett" is the Abirl @ k "ispule 1 un <S ÄtefwS.eteeXEpuXe Γ; _ρ dis bfsiö «x ^c side öer base plate arranges; are υΐΐά tidh around a gsmelnsnme axis of rotation ο

At BHQi opposite sides de? Qfundpl & tte A are good free (iFundplatten B and C ₈ kuh · example dureh

90984A / 1537

Di® 9s? Im $ pl & fefc8 B ts? Ägfe precipitations for the magnetic tape R ₀ dl® mm Hollen 3 big ΊΟ reflect ₀ the inclined and de? · »

fnttßQvdn & k i / Binäg daes sis @ a train smiaehen Se?

sp ^ le 1 USRd <I @ K> Ä «fwi @ kölspial @ 2 form, the ftlx» form the band

wiü üQsJS ^ fgßSQlminüiglmlt®n suitable lst ₀ On this track © to «- ¹ JoF ^ i eh tang ge ^ ui Äatx'ieb dee Baases H angs ^^ dnet, mm # 1« β3 »f®nw®a, S @ ii? md © in @ r »ugly Änärüök ^ i2 fei! St®ht ₀ Have 4e? Sonwelle II is a magnet 13

to sl @ h

B carries ^ iasseFdem means star ambition g the g © mä @ sd @ r invention of two swivel Id begteh®si _e the roles 16 b?, V ₀ 17 carry on each photo-electric device 18 bsw. 19th

SI® Qjpundplä ^ «S ₀ die tesi teua part with Eini« lh @ iten in Figo aIaht _& issf-Igfe «inen! © t®! ³ 20 and in sw @ ifa © h »^

Jö on ii® bobbins i seed wheel

Invention uiaf & esen äias® means insert · each coil .Ant »iebegiied _e the üu ^ uh den Mstoi" in Di ⁱ ehuag ^ @ rsets ste Z ^ Leohen member sum obes? Ti? Agen the rotation of the An

9098AA / 1537

BATH

trlebigliedes on the spool "a brake, a shifting device, including the intermediate link either" it the Coupling drive element or with the brake su, as well as a control element.

In the exemplary embodiment shown, these exist different, existing for each coil in the same catfish links from a drive roller 21 bxw. 21 'on the Motor shaft is attached, a Zwlschensoheibe 22 BSW. 22 ', a brake roller 23 bsw. 23 ', a coupling part 24 bsw. and an electromagnet 25 BSW. 25 * sum exerting a pulling or pushing force on the coupling position.

In the assembled state of the base plates are the Axes of rotation of the disks 22 and 22 * parallel to the axis of rotation of the spool 1 and 2, and each disk 22 and 22 * stands in Frictional contact with an annular surface firmly connected to the associated coil, for example the inner surface of a located below the coil and firmly connected to her washer. Each intermediate unit can use its displacement device be moved in Kwel different positions in which it touches the drive roller or in ö-sr it is connected to the brake; but remains this disk always in a driving connection with the one assigned to it Spool on which you can either set the drive torque of the motor or the braking torque of the brake, depending on which of the coupling part of the shifting device sugewlesenen position.

908844/1537 ^ß AD ordinal

. _7th 15A7073

The coupling parts 24 and 24 can be used by anyone known means exist that the displacement of the toe disk in the positions indicated above allowed, for example from a suitable linkage.

This Qestlnge 24 and 24 * is supported by anchors 25a and 25a * an electromagnet 25 and 25 * actuated. Oemäss the In the invention, the electromagnets 25 and 25 * are excited in a way that the displacement force in both Directions develop as quickly as possible and that the forces of inertia counteracting the displacement are as low as possible. This is due to a suitable design of the exciter current circuit of the electromagnet achieved in which a displacement of the armature in each of the two directions causing force is an electromagnetic force. You can do that very much cause rapid displacement of the anchor in each of the two possible directions of movement and each of the two Start spinning or stopping the bobbins very quickly. This speed would not be possible when changing the state of motion of the coils with a conventional electromagnet reach su, in which the force that moves the armature in one of the two directions is elastic The return force is as it is generated by a spring »These return springs have the double disadvantage that they offer resistance to the displacement of the anchor in one direction and only progressively in the other direction works.

9098U / 1537

BATH

The energizing tube Each of the two electromagnets 25 and 25 becomes by one of the two photoelectrons Orders 18 bsw. 19 controlled that on the baseplate B are attached. Each of these devices 18 and 19 consists of a light source and a photosensitive Receiver that emits an electrical signal depending on the lighting that hits it. Included the light source and the receiver are opposed to each other separated by a space,

into which a limb can penetrate that of the light source can interrupt the outgoing beam ·.

Flg. 7 The execution of the arrangement is selected in one 19, which include an incandescent lamp 19a and a photoelectric Has cell 19b, which is in a «U-shaped housing 19d are attached, the suitably arranged window for the bulb and the cell possesses and a passage 19c forms, which is traversed rom Llohtbündel. The device 18 is designed accordingly.

The receivers of these two devices 18 and 19 are connected to the excitation circuits of the electromagnets 25 BSW. 25 * via suitable electrical circuits, not shown tied together. These circuits can / the known circuits on the control of electromagnets by photoelectric sensors to be selected. The known and suitable reinforcements can also be used.

908844/1537 BAD original

According to the invention, the recipients are also with of the motor controlling device mounted on the base plate C. Training the control is made in such a way that the engine runs at the same time as the engagement of the clutch part one of the discs 22 or 22 ', i.e. at the same time as the closure of one of the discs with a drive roller, begins.

Devices 18 and 19 control the electromagnets 25 or 15 * unddsn motor 20 so that an interruption one of the bundles of light causes the supply reel to stop 1 and the non-interruption of this light beam causes the rotation of this reel, while the interruption of the other light beam causes the rotation of the take-up reel · 2 and the non-interruption of this light beam causes the This coil stops. The two devices 18 and 19, in cooperation with the movable ones, allow Rollers 16 and 17 thus control the movement of the spools 1 and 2 depending on the position of the rolls iß and 17.

Each ύον rollers 16 and 17 »is arranged so that it can bawsgsn along a B & hn bawsgsn intersecting the most orderly light beam ^ where the tape R and the hollow forms an open» loop. that they

909844/1537 bad ORIGINAL

is constantly under the influence of an elastic force which endeavors to convert it into a force which interrupts the light beam Move into position when the belt is driven.

The moving rollers seek each other under the action of the elastic forces to which they are subjected, away from each other so that the tape is sucked in the two opposite directions. Under Under these conditions, the part of the belt located between the two movable rollers is constantly tensioned and ready for recording as well as playback.

In the exemplary embodiment shown, the movable ones are seated Rollers 16 and 17 on the pivot arms 14 and 15, which are not shown under the action Pre-tensioned coil springs or other known means are available that strive to move the pivot arms down to pivot in the sense of the tension of the belt. The rounds 16 and 17 move on tracks that run through the passage 18c and 19c, respectively.

In the Flg. 4 and 5, the arm 14 is shown in the extreme low position, which it assumes under the action of its spiral spring in the absence of the magnetic tape, and the arm 15 in its highest position.

909844/1537

On the Pig · 1 and 2, the devices 18, for example. 19 not shown · The two swivels 1h and 15 are, however, inclined in positions which correspond to the position of the roll 16 la passage 18o of the device 18 and the roll 17 1 «passage 19o of the device 19, in which positions dl · winding reel 1 stands still and the winding-up reel 2 is turning when the Oerflt In Oang is set. You can see in Flg. 1, how the movable rollers 16 and 17 old the other rollers lusaaaen the path of the tape R swisohen the two reels · bestiaaen.

On this track, and was in the same way as the two of them Rolls 16 and 17 lying area, the magnetic head 13 » the capstan 11 and the pressure roller 12 arranged, the the tape presses against the capstan.

Under the particularly flat conditions and the tape not being driven by the capstan, the take-up reel 2, as it rotates, sees the portion of the tape as the capstan and this reel 2 against the action of the roller 17, which emerges upwards from the passage 19c, which sua standstill Aufwiokelspule 2 leads _t said tape under the action of the resilient force which presses down the roller remains tensioned _t 17th The part of the belt between the capstan 11 and the movable roller 16 becomes equal

9098U / 1537

BATH ORIGINAL

«Travel through this role and the standstill of the supply reel 1 excited «

Once the recording is to start the capstan 11 may cause the passage of a certain band length * the old movement dor movable roller inhibited 16 and 17 ver "lat _e the tape tension aufreoht obtained and thereby the rotation and d # n stoppage of Ab" and On = winding bobbins 1 and 2 cause »

The device sur regulating the belt tension, the sur same tent a band reserve «wipe the coils and The sound wave safe sharing »works in an atmospheric environment just as well as in a vacuum, while the negative pressure control is known for the same purpose Recording devices are equipped only below normal atmospheric conditions can work.

This property of the device according to the invention notices * Among other things, increases its use on board space » ships.

It differs from the known tape recorders *; Eich the invention by other special features. For example, the movable rollers 16 and 17 are slightly convex instead of syiindriBGh. This crowning asks Ύο ** < ·· »£! * Tutomatiseh to ensure that the belt runs correctly on the rollers, which is very important«,

9098U / 1537

Perner is the capstan 11 built so that it does not have any protrusions owns. Flg. 1 shows that the capstan 11 consists of a shaft 27 which is supported by bearings 28 at both ends and 29 is stored and has a middle section 27a over which the magnetic tape R must run. The warehouse

28 can be located in the base plate B, and the bearing

29 can be arranged in a housing 30, which by means of Sehrauben 31 and 32 is attached to this base plate. According to the invention, the shaft 27 is preferably made of Steel with good mechanical properties and is partially machined in such a way that it is possible that Contactless with the tape with a non-magnetic Material, for example that known in the trade as "Randao", to cover one surface with good carrying properties guaranteed. The means for driving the capstan, which are known per se, are not shown and are not the subject of the invention.

Another special feature of the Gerfite according to the invention is that the pressure roller 12 is floatingly mounted on a simple swivel arm 33 or one composed of several parts, which is under the action of an elastic force tending to make it swivel downward and slide Roll towards pushing the capstan. This floating mounting of the pressure roller is advantageous in that it enables lengthy and costly legal adjustments to be avoided. Fig. 1 shows the pressure roller 12 in operation is si treatment s while Fig. Ά this role in after

»044/1537 BAD ORIGINAL

© ban gasofen -: »* · indicates position,

Di © Iloehateliung clei * Roll® 12 and arms 15 and 14 arfoljgfc; when eisji saw ainen? fast run of the tape old one? vsreinfashton web ₃ which only by the rollers 5 ₈ ^ bQs9 Wad 10 bisst iniaifc eatsjWflnseht. According to de * "E, this maximum expression is brought about by the pushbuttons 3 ^ bswix" kfco The buttons 3 ^? 5 _Ö cil-s one on the Fig "4 -iod d" J? Öi & g "drttektsm _s di @ H@chefeel2.ung ' »La wix'kt on ®1ϊϊβη dy ^ hbas ³ gslage ^ ten He *> al 3i>., Äer ·; -.- * ■» in ~ m Arra on a thumb 37 cir-üiikr ·,. Dai * i > sin * ■: ■ -.; - i. *.?: st.; i ■ · .- ■ :. » poor

38 and 39 fe ^ cäsd ^ 't. " d & a d && ^ Vjiioöensehw ^ nken das

33 days? indrüekroll © causes. Dia Tiisfce 35 confirms "in anticipatory W @ iaa a double lever ^ to ₀ represents a ping ^ E · ^ l the Sehwsnkarm I ^ says"

the invention also exists 3ir «3i? the 3 * 1 and 35 ühö «sinem gear 42 _g that with ctsr

23 (FIg ₉ 3) firmly v ^ bundsn is ₈ ®inu kinsinätiash © connection dawart _t that the tasta in §ij; "g * ° drüQktm * position dia ^ ssrsshetzung this Zahriyadss -42 be = wii-kt and it engages with © inem sweitsn ten wheel h3 bs ⁵ ingt _B which is driven by the motor 20. The Varsahrift d @ j Rffidss 42 can sum Babeispiel such an upwards aein ₈ the ψ & η the movement of the key 3 ^ dureh »lh consisting of levers _g rods and cams _9. A part of this linkage is shown in Fig. 3 with 44 bee * i6) ift * *.

9Ö9S44 / 1S37

ORlGiNAL

The gear t2 _e dae with the · Bremeroll® 23 firmly connected lit. Wim si rait means be provided, "which allow blocking Bslnnr rotary motion ^ But whether dieting release of Hochetollung * In Aueführungsbeispiel are this blind holes _f 42a provided in the gear JJ2 in dl «Sliding pins can intervene.

When the gearwheel 42 is moved into the position in which it is released, the roller 23 comes into contact with the disk 22. In this state, the running of the motor causes the rotation of the supply reel I _1, which rotates in the opposite direction to its normal direction of rotation, _{via the gears 43 and 42 and the roller 23 8 which becomes the drive roller, so that the magnetic tape is rewound.}

This backwash is much higher than that normal running speed, which is due to the fact that dJf «Rolls 23 have a much larger diameter than the roll «21

L8t the control means interrupting a Liehtbündele ₈ as described in the Ausführungsbeitpiel _D could of course be dursh control _ersetst? , which is based on the interruption of a magnetic flusee _e whereby the phot ο- ^ isehen devices by magnetic devices

ffteru c.ie eltran M 90Sf8U / 1537

BATH ORIGINAL

Claims (1)

Claims 1) Υ tape recorder for a tape driven by a motor driven past a magnetic head via guides including a winding coil and a winding coil runs, identified by a first base plate (A) * on which the supply reel (1) and the take-up reel (2) are arranged coaxially and rotatably, and «was the one on the top and the other on the bottom, a «wide base plate (B), on which all the path of the Tape (R) «wipe the supply reel (1) and the take-up reel (2) determining guides (3 to 10), the Magnetic head (15) and a device (14 to 19) * ur Regulation of the belt tension at least on a certain level Area of its path are provided, as well as by a third Base plate (C), which the single drive motor (20) for the coils and at least one device (22.22 * to 25.25 *) for controlling the drive status of the coils (1,2) through the motor (20). 2) Device NaOH to claim 1, characterized in that arranged on the ewelten base plate (B) device EUR regulation of the belt tension for each coil (1.2.) Depending on a photoolektrlsohe means (18,19) and a movable roller (16 _B 17), which is so displaceable that it can interrupt the light beam of the photoelectric device between the light source (19a} and the Liohfcempfanger (19b) * 6098U / 1B37 BAD ORiGiNAt Device according to claim 2 _B characterized in that each of the movable rollers (16 _g 17) is constantly under the action of a Power is the _e iat strive ₉ hung at start-up band (R) au ®ln®z> Unfc @ rbre © of the light can pool SeMt «& @ h Claim 2 ed® ^ 3 _a dadureh Roll «(l6 _e i7) J © on a®« ■ Am des * effect © in @ s? before after. a @ a d <§r> Asi @ pr ^j ü © h® 2 to ^ ₈ thereby gek @ nn ~ dasi äi® movable roles (1β @ 17) one easy g "L & üffiäeh © aufweieen" ie 1 to 58 thereby identifying mis äi © two movable R © ll @ si (1β _Β 17) §.c> -ang © ®s »dß @ fe sinöj, d & is si® the band (R) in. opposite · - naefe @ in®ai of claims 1 to 6 g characterized thereby · = dmes «Si © drltt · base plate (C) swei device C25 _S 25 ⁹ ) which are each one of the two coils (1, 2) and each one Drive member (21,21 ·) ,. that through the motor (20) is set in rotation, an intermediate member (22 ₉ 22 ») to 9098U / 1537 > * - ■ ■ BATH ORIGINAL transferring the rotation of the drive link to the trains » © ran Spul®» © into the brake (23 ₈ 23 ^f ) »a shifting device (2"! ,, 2V) around the intermediate link (22,22 ') either with the Ants "i @ bsgli®d or with the Brems® su coupling, as well as® © in control element (18 ₈ 19) »have to control the Vtr ° sliding device · 8) Assembly according to claim 7 _e, characterized in that the A »tri @ bsgliade? (2I ₅ Si '), the intermediate links { 22,22 ») and the brakes (23 ₈ 23 *) are designed as rollers and that the displacement device /!) Β have a / klektromagnet / (25» 25'), which the displacement device (24,24 *) operated by tension or pressure in such a way that the intermediate _{link (22 9} 22'f / neither with the drive roller (21, 21 ”) or with the brake roller (23 ₈ 23 ') is in friction base ₉ whereby the intermediate links are always are coupled to the separate coil to which they transmit either the drive torque of the motor (20) or the braking torque of the brake (23 «, 23 *) ₈ depending on the position» which the shifting devices * 9) Device according to claim 8 _9, characterized in ₉ that the electromagnets have an electromagnetic force that is optionally effective in one or the other direction of the two opposite displacement directions of the armature « 9098U / 1537 ^ ⁰ OFu _G t _NAL .19-15A7073 10) Qerflt according to "inta of claims 7 to 9 in conjunction alt elnea of the address 2 bit 6, daduroh marked, dan «1 · control members dl« arguing on dtr Qrundplfttt · C ·) arranged «η photoelectric direction (18,19) provided. 11) Qerlt according to claim 1O ₁ characterized in that an interruption "Ine" of the bundle of light causes the unwinding reel (1) to come to a standstill and the interruption of this bundle causes this reel (1) to rotate while the other light bundle is interrupted the rotation of the take-up reel (2) and the interruption of this light beam cause this reel to come to a standstill. 12) Oerlt according to an »of speech 1 to 11, characterized in that that the belt drive has a shaft (27) which at both ends of the belt (R) stored 1st, 13) (Serfit according to one of claims 1 to 12, characterized by * Seichnet that the tape drive has a pressure roller (12), which coaxes with the shaft (27) and floats is mounted and is pressed against the shaft (27) by an elastic force. It) Qer & t according to one of claims 1 to 13, gekennselehnet by a device (3 ^ to 41) to lift the swivel 809844/1537 BATH ORIGINAL arms (1 * 1.15) with the movable rollers (16.17) and • a · swivel arm »(33) with the pressure roller (12). 15) Device according to one of address 8 to 14, daduroh gekennieichnet, the «one of the brake rollers (23) is firmly connected to a gear (42) which is in a position in which it is secured against rotation and can be moved into another position in which it can rotate and is in engagement with a disputed gear (43), the »Wide, by the motor (20) driven gear (43) the unrolling reel (2) but the first gear (42), the Brake roller (23) and the intermediate member (22) drives. 16) Oerttt according to claim 15, characterized in that the Brake roller (23) has a large diameter in relation to the drive roller (21) on the motor shaft A 0 8 9 4 A / 1 £ Τ · '