DE1499629A1 - Tape transport device - Google Patents

Description

PATENTANWÄLTE 8902augsiiurg-gdggingen, 20 * 10 * 1966

v. Elehehdorff-Sfraee 10

DR. ING. E. L [EBAU 'UnserZeichen ßr.I> b / P Az D ukjZ

_Ä (Please specify when replying) DIPLING. G.LIEBAU

. "" Sign 1499629 /

. Your message from

Dartex Incorporated, 1222, East Pomona Street, Santa Ana, California 927o7 / USA

Tape transport device

The invention relates to tape transport devices and particularly, but not exclusively, to one Transport device for tape »

In the construction of a magnetic tape transport apparatus the underlying task is usually creation one that is as compact or space-saving as possible "and so on as light as possible working device * to create

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BUILDING

a space-saving tape transport device is often due the required arrangement of a supply spool and a Take-up reel restricted next to each other. Therefore, e.g. generally to use coils with a 5 inch large diameter a tape transport device can be built, which is at least 10 inches wide. Although usually only that Supply reel removed from the machine in operation a sufficiently large take-up reel to accommodate the entire tape of the largest possible, in the given case usable supply reel are provided, so that the take-up reel temporarily as Supply spool is used. While it is possible to mount the supply spool and the take-up spool on the same axis, one on top of the other, is the band guide between in different places Coils lying at heights or levels cause difficulties connected and makes this proposal generally impracticable, An arrangement to reduce the \ The width of the tape transport area is therefore very desirable. "■ - ■ ·"

Sine more to l-ösende task is the creation of a Bandttfansportapparates where the Sitilegen and inserting the strip into the apparatus without difficulty successes, "Sin can * Such a problem is particularly high bet leistungetrausjportvorriehtungen on which a hat © beträoht? iöfc © Änssahl von band guides, used irird, between which the band is inserted, must »Es ist fSr

- 0Q0sai7i§sr: - "". ', _ _ v.

BATH ORIGINAL

apparently difficult for laypeople in this field 'that' Tape between the various tape guides, reading and stylus devices, spill and buffer rolls through to pull so .that the persons concerned do not dare to try to learn how the tape transport apparatus is operated and sometimes the tape is wrong insert.

Another problem when inserting the tape concerns the "starting" of the sand in a take-up reel or the like. is inserted. The take-up reel must then be rotated by more than one revolution so that the end of the tape can be held in the slot by a tape strand covering it. Dabi? ^4, care must be taken that the tape is not stretched too violently, otherwise the end of the tape will slip out of the slot.

Therefore, it is Jas's goal of the present invention to create a to create improved (sound) bandtratisportapparat

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more space-saving and easier to operate than Ji? ' % or, -bokamites Apparatus of this kind.

The inventive tape transport apparatus has a rotatable * ΛufWiek * =! Spool or hub with axially extending

OO982S / 1SS4

BATH ORIGINAL

the, in. Distance from one another arranged projections odex: Pins on which access the tape upright and axially of the hub from one end of the hub to a point where the tape crosses the hub. So the conventional take-up reel will not used, whereby the otherwise occurring when inserting and placing the tape in or on the take-up reel or hub Difficulties according to the invention resehall; et are. Now the tape only needs to be in an upright position brought and the device started. If- · although attaching a side window to the rotatable Take-up hub or at one of the access end for the tape distant Xabenende not according to the invention r is closed, the winding hub according to the invention is bar each side window. Therefore, the axis of rotation of the rotatable Hub arranged close to the tape supply reel and thus the desired space-saving design of the tape transport apparatus be realized. . .

xJcr invention (sound) tape tratisportapparat preferably has the take-up reel. - Hub covering plate with a Jl ο cross hub. Slot ..to advancing df * s band into the rotatable ÜabengliW überquer- ⁱ hands position is nothing more required than simply insert Jas Bend through the slot "The insertion slot of a" Iransportappara los ^ uin transporting a iisgriotDanuoB orjtrecKt si-cn \ or ^ ugatvoise along

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BATH ~ ORIGINAL

1489829

a track in which, among other things, "a reading and writing head _for the drive for the tape and the guides for the tape lie" so that the slot running in this way enables the magnetic tape to be attached - so that it runs along its path from the supply reel to the receiving hub - facilitates "

The invention will now be described, for example, with reference to the accompanying drawings; in it is inherent

Fig. 1 is a plan view of a built according to the invention Magnetic tape transport device, the lid of which is open | -

Fig. 2 is a plan view of the device shown in Fig. 1, whose guide plate is now removed, is »so that the position of the guide elements is illustrated with the lid closed;

Fig. 3 is a partial cross-sectional view along the line Line 3-3 of Fig. 1f

Figure * f a look d v Aufwiclcelnabe for the "in FIG""1 and 2 * {

Fig, 5 © inö TeiIscimi £ tansticht along the Msie 5-5 of the Fig. 1, shows a leather holder button or feature

- ⁶ - ■. 1499029

6 shows the button shown in FIG. 1, but which is now is firmly tightened j and

Figure 7 is a partially cutaway elevational view of another embodiment the arrangement shown in FIG.

The erfindungsgetnäß formed Magnetbandtransportapparafc is shown in Fig, 7, and has a Vorderwand- or support plate 10, an a portion of the front wall covering the guide wall plate 12 and a lid] k, which is shown in its open position A, consisting of a shaft and a holding-down device Arrangement 16 is attached to one side of the wall plate IO and serves to hold a supply reel 18, while a shaft on the decent side of the wall plate to carries a winding roller 2Ä, shown with dashed lines, * Bit * · V Se & lita Zh in the FührungsT / andplatte extends -from, the supply spool to the take-up hub, while the tape 26 is first dtirch the slot moves wad then from the reel from the hub and is conveyed vice versa.

Icann will nent.e deutlioJiier Figure 2 taken iti which the transport, assuming Fil5s angspl at, ^v 5 © IS darg ":: = · ·: A Asisaiil along bounded by slot gUTigsbaiin lying guides and other 3 £ lo? represents is. The tape track. extends them ;: ·, νηψ. e sy "Vcs ^ rata-"

0 Ό δ i 2 S / i a S 4 bad original

- 7- H99629

spool 18 from a buffer roller 28, kind of a Abieso- and Sdireibkopr 32 over, between a Spill 3 $ and a pressure roller 38 »around another buffer roller HZ and then around the hub 22. The guides 30, 3 ¹ * and 40 are for precise tape guidance along the sand track. The movement of the tape along the reading and writing head 32 is precisely controlled by the rotation of the capstan 36. The tape drive is in which the Aiipreßrolle is iminer, weggenofluneti against T3AS spill 3ό pressed wi rd _T init gutted ^ eggs felling "in soft the tape into the Traasportappa-rat oiugobracht and from there on the design", said spill tw Beschfeuttigung and V The length of the tape with a high pitch and delay in how it is not driven, a description of this type of tape can be found in pending US patent application no. 2, filed on August 2, 1903. '170 2 6, inscribed ^{M üaudtransport tt} des xiobert A. Kleist.

The buffer rollers ZB and 42 are each connected to the buffer arms ' ik and ^ by means of slots kS and 50 provided in the front wall plate ρ · 10, which are driven away by spring loading for the reading head 32. The ends of the slits limit arm movement while the tape is in the Traasport apparatus. As soon as the tape is accelerated from the supply reel 18 in the direction of the hub 22 with the aid of the spill, the buffer roller 23 moves towards the .kopf, whereby a tape length is obtained that runs along it

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- see U99629

, the head moves before the coil will, accelerated speed to full overall 18 · "may" At the same time the buffer roll hZ moved from the head 32 IfSG _s um_ a © any BaadSchlaffheit take, "to di © hub Z2 Ais fully ©. - Speed has reached «ilianllch © Assignments ύ & ν Buffer roll find when moving suaa Stop the Bamdes- s®wi © during acceleration wad ¹ Sf © γκ $ ^ @ rung Im the setatea RicJatumg« == tiätnliela i? Oa the Mafo © spale Siiia - - instead of"

To hang up, and sä? Abmafesa © d®m 3muu®Q measured that Ä 38 v @ m rinsing 36 x «- © gb @ xi © gi5 'tfes'doKs elaait öa @ Bamd _o Di © Ampffeßff © !! © 38' tiis "d with- Hiifo one with buckets of rollersSialteglied 39 ^ βfbuna <3m @ n Fed © -? | I Bttf das-Spill pressed b3t? _ä -vom Spill t? ag & et? egt. -As-asagi Fig. 3 can be seen, carries an arm 5k connected to the ec £ s © l 14 of the Ta'smD ^ ortapparats the pin 56- and 53 "Bör" © tift $ 6 is used to move the pressure rol © w®g voai spill 36 when the cover Ik is open. The pin 58 moves the pressure roller in the direction of the capstan 36 when the lid is closed; the pin 58 only partially moves the Bolle away, the spring 52 (not shown in FIG. 3) moving the roller further until it comes into contact with the capstan.

Another mechanism that is used to move the reel towards can be used on and off the capstan,

is shown in Fig. 7, which is a partial view in a plane -

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BATH

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represents, which extends through the roller arm »At In this mechanism, the roller 110 is supported by a roller arm '112 held and by a (not shown) spring in Rieh »' ... 'tion driven onto the Spill 1iA «One above the Guide plate 118 through a provided in this slot 120 extending handle 11ό allows the Roll by hand to move away from the spill when the sand is should be placed between the capstan and the roller. A hook or latch bar 122 attached to the knuckle arm 112 can engage in a notch 124 provided in a button 126, to keep the role away from the 3pill. The button 126 is urged upward by a spring 128 and has a protrusion 130 above the guide plate.

As soon as the lid 132 is closed, it presses on the Button projection 130 and thus the button itself down and releases the hook bar'122 from the notch is4, whereupon the roller arm 112 moves the roller 110 against the capstan 11A. Because of this arrangement, the tape transport apparatus at with the lid open, which is sometimes necessary when checking or trying out or when setting up the machine is. This requires an additional seifci when inserting (Move the handle 116 before applying the tape between spill and reel), and allow * trotsdota a simple insertion »; ■

The hub 22 is formed from several pins which run along

ζ. _BAD0R1G1NAL

are arranged at a distance from each other · / These pins can be of various shapes; essential / ' However, the prerequisite is that the tape is slightly between /

the pens may fall. As soon as the end of the tape 26 j

ι is placed between two sets of pins of the hub - see Fig. 1 - and the hub is then rotated while the capstan 36 advances the tape in the direction of the hub, the tape is automatically inserted or threaded into the hub. The conveyor is loaded with the tape by placing a supply reel 18 on the Well® or axis 6 and turning the supply reel about one turn to unwind the tape so that this length of tape runs along the slot 2k extends past the hub 22. When the cover 14 is open, the free end of the tape is brought into the slot Zk ,

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the end of the tape extending along the hub 22 a sufficient distance which must generally exceed one-half the diameter of the circular path described by the pins. Then the lid ^ k is closed so that the roller 38 moves against the capstan 36 and the tape is grasped between the two. The transport device is now ready for use.

In the case of the transport apparatus described, the slot is in the Near the filing and writing head 32 is slightly curved. These Curvature allows easier projection of the head 32 ' in the section lying between the guides 30 and 3 &

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BATH

11

Tape path during the transfer of information or recording, in order to thereby “insert the system between the head 32 litld d. · »Ensure band au. As can be seen from Fig. 3, «Invited FÜJarttttgsleis ^ sn 37 aaf-der'Führungsplatte 12 ^ © rg © ~ uro »those on both sides of the slot 2 Ί» -. lie. These"

ejpetreefee »arish the Ffäteäiiagea 30

See sieta Aokseia t6 mad- EO ₅ ataf which

or _a hub sisad 22 aageoFdsaei is ®ls der'größten ¥ rats or coil, a gegebener- Baiasifcratisportapparat entfaalten Isann of ³ ÜNarefcoäesger. Ber

the - with one given ^ Baudtrans «supply reel is limited by the other halls, trovon- see, for example, the buffer reel 28, for example. the sides of the support plate 10 would prevent a larger spool from being used in FIG Axis of the supply reel wound tape 26 when most of the tape has been transferred from the supply reel to the "hub" or the absence of side disks on the hub allows the supply reel to be arranged opposite the hub with only a small distance therefrom. Namely, the hub 22 does not require a side window, since the buffer roller kZ guides the tape onto the hub with precision, so that even when in use

009825 / 1Ö5A

a narrow band - such as a \ / h inch wide tape - the tape is always accurately in the same levels. is performed, in which the opening would lie between the otherwise existing side windows.

In practice, the tape is always kept in supply reels. After reading or recording the tape during its transport in the tape transport device, the tape is always rewound on the supply reel and stored held. Since the tape located on the hub 22 only through. the transport mechanism is handled, are also not Side washers · of the hub required to avoid accidental removal of the belt from the hub.

By eliminating the hub's side disks, the tape can easily be threaded into the hub by the tape is simply inserted between the hub pins, whereas the start of the tape with the previously known jkufwickelspulen or hubs with side discs the insertion of one end of the tape between the side discs or in required a slot provided in the hub.

The handling of the end of a length of tape for the purpose of his Inserting it into a narrow slot in the hub of a spool is often a difficult and thankless task if access to the hub is obstructed by large side windows is. Therefore, it ensures a discless self-threading Hub threading the tape in a very easy way »

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BATH ORIGINAL

Another advantage of the self-threading hub is that the tape runs over the hub in such a way that it lies over itself after only half a turn of the hub. Been wound but once another run of the tape on the tape 'end, the tape can be hardly pushed away from the hub, itfie from the more accurate representation of the hub B * ig "h apparent 22, the hub a number in the window 76 inserted pins, said disc 76 ati an axis 78 is fixed which motor (not shown) by means oinos is driven to rotate the spool _s * It is ÖIN band end 70 otift between each kswci * - or päaren 72, 4 (? the rear pin 72 cannot be seen here) .. Often the tape end 70 is not on the tape-bearing side 77 of the disc 7ö {dattic the jdandfLllijrung by the buffer roller 42, however, the tape on the hub is in the same plane as the tape on the The supply reel is wound up so that after a few turns the tape layers wound on the hub are in the same area as those of the supply sink and thus on the above-mentioned side 77 of the disc 76 *

As can be seen from the drawing figures, the use of discless hubs has the important advantage that it enables the creation of a more compact, space-saving tape transport apparatus as a result of the reduction in the required width of the tape transport area ^. will. In the case of the band transporsionals ⁷ iäes' ^ known "class" ⁱ

the technology, however, had to expand the ligament transverse area at least twice as large as the diameter of the largest possible- accommodating role so that the supply spulo and the take-up reel or hub next to each other could be arranged. Thanks to the disc-less invention goal! Hub wound tape allows between the suite panes stepping the supply reel, the construction of smaller and narrower tape transport apparatus can be achieved. The theoretically possible minimum width of the tape transport apparatus or range when using a hubless hub corresponds to about half the diameter of the tape wound on the supply reel and can then can be achieved when the winding hub has a small diameter and near the edge of the circumference of the Supply spool is attached. In general, the Hubs have a considerable diameter and are arranged at such a distance from the ice circumference of the supply reel that that the saving in transport area 25 does not reach 7a. A significant saving in transport area however, according to the invention, without any loss Performance or reliability, paired with such Advantages, such as easy threading of the tape in the

winding hub or reel and easy starting of the tape possible,

While here sitie from several. Pins existing iNabe shown

041-9 % 2Zn * Si

a number of other configurations of the hub can come into question. Even hubs with side disks can be used, provided that at least one slot is provided in the upper or radially outer side disk (ie in the side disk further from the support plate 10) and the slot extends from the radially outer edge of the side disk to close extends to the center of the hub. The passage or slot or the opening between the hub pins preferably runs diametrically through the hub, so that the band can be inserted more easily into it and the hub after only half a revolution of the same. bpfpsti ^ t be canoe «SoT ch« Seiteuscheibcn der Nabo have varzugp- ■ wise P- ⁵ UOU wpsTtitlioh smaller diameter than d. "·;» tjrö ^ to zu ν <»rwoudend '■> supply spool, does the axis last? - the .ro ^Λ on number of openings, such as the one between the multiple pins of the hub shown in the drawing figures, is particularly desirable, since in this way several .Wege are created through the hub for the tape, so that the tape - without, as usual A narrow slot sucha must be inserted into the hub, especially if the hub is largely covered by a plate, as can be seen in Fig. 1. In any case, the pins or other projections of the hub must pass through this create (or to its central area), which in the axial direction outwards from the band-bearing side 77 Ms to;

I ββ, Η: ■ -: - '· Τ-ννΠΜι "ΜΙΛ | · _ 1 (j *.

rungsschiit ζ Zh in the guide plate 12 is unimpeded, so that the tape initially only through. Insert the tape and it can be threaded into the slot in the guide plate.

Thanks to the embodiment shown in Fig. 5 tra-d6 NI ed orhaltegriff arrangement, a Yorratsspiale 80 on a turntable 82 for tape transport quickly be used "This arrangement has a courses axis 84 with a Scbtraub-enabschmitt to 86 in the Brphscheibe 82 is eingesetaaesfot, as well as a having a threaded high 88 for receiving the handle JJO * the hub Ixat a grooved head 92 and a handle 94 Schraubstif t _s <Jer in the 2L> © cii 88- engages the Ach.se. The upper end of the axle 84 has an inclined outer edge 90, while a corresponding inclined edge 98 is provided on the underside of the handle 90 Handle arranged »

The outer diameter of the axle 84 or the handle 90 is each slightly smaller than the diameter of the center hole 102 of the hollow 80. The outer diameter of the washer 100 in its unstretched or uncompressed state corresponds approximately to the diameter of the " axle " or the handle, although it does can also be a little bigger "

A supply spool is inserted by simply pulling it over ..'- ί

QÖ.982S / 18S4 bad original *

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the handle 90, the washer 100 and the axis ^R k is brought into position against the rotary disk 82, whereupon the handle 90 is tightened approximately one full turn, whereby the washer 100 between the two beveled edge portions 93 and 90 of the handle (Fig .6) or the axis compressed and automatically into the space between the roller 30 and the axis 3 *! is printed. In this .Lage the holle 30 is held firmly in position against the roller turntable and around the axis S '! centered around. The only concentrated hold-down force exerted on the itolle SO is applied by the washer 100 made of elastic material. Thus, the roller 30, generally made of a plastic or plastic material, is hardly damaged if the hold-down button or handle 90 is tightened against the washer. The roller 80 can be released by simply unscrewing the handle 90 through approximately one turn so that the washer 100 can contract.

Although a washer made from a lilastomer material in the form of an O-ring is shown in connection with beveled surfaces in the drawing figures, other embodiments can also be used. Se can, for example, «a mifc an isleiaea high. ± n iliror middle vorsshc-nQ washer in the form of eiaor plate in.

g «tilt © ϊ-ϊίβΐΒ Handle uü, <S bucket / ic Ix se ν & turns

BATH ORIGINAL

that are flat. Duron the togetherness pressing the washer when turning the handle, the washer is inevitably expanded radially and holds a role in place. Another alternative form includes a spiral spring in the shape of an O-length that is similar like the O-ring expanded according to the drawing figure will. The expansion glicd does not have to be in the form of a washer or a ring, but can be made from pieces of stretchable material or from devices be composed which have the same cadial expansion and -Achieve contraction by turning a knob or handle that is smaller than the hole in the roll (thus the hell can slip on the hub).

Claims

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Claims (1)

U99629 Claims 1. Tape transport apparatus, characterized by a take-up hub (22), - ordered from a single rotating link and a number of axially extending projections (72 | 7 ^) has *, which are arranged at a distance from each other access of a band (2öj 70) hocliksnt and axially to Hub (22) from one end of the hub to one Enable point in which the tape dio hub (22) crossed. 2. Tape transport device to. Claim 1, characterized in that the axially extending projections consist of pins {j2i 7 '»} which extend upward from a disk (7O) and are spaced apart from one another along the edge region of the circumference of the disk (76"). 3. tape transport apparatus according to claim 1 or 2, characterized by a drive shaft for a tape supply reel (18), a region surrounding the drive shaft being unobstructed, so that a supply reel (1S) is placed on it VeI-Io can be put on and the axis of the liabe (22) is close to this area. - 20 - 00982.5 / 1864 Bad or _{1G (na1} . H99629 h, tape transport apparatus according to one of claims 1, 2 or 3i wherein the tape used is audio tape, marked i is characterized by a plate (12) ₄ which is located above the take-up hub (22) and part of the from a supply reel (i " 8) extends from the tape track leading up to the winding near (22) and has a slot (zk) which is aligned with this partial track and above one end of the rotatable hub (22). 5. Tape transport apparatus according to claim 3, characterized in that the drive shaft (ok) is associated with a Spulenixalte— moChartism, which has an expandable washer (IOO) which is actuated by a - Steiserktiopf 'and can expand radially to the Uelle . ü. Tape transport apparatus according to claim 5, characterized in that the radially expandable washer (100) is made of Hastoiiiatorial in the form of an O-ring and lies between the control button or handle (90) and the end of the shaft (oh) and that the control button (° -0) is screwed axially onto the shaft (84) and can cause the radial expansion of the O-ring (100) if it is tightened. 7. tape transport apparatus according to claim 6, characterized in that that the O-ring (100) on a bevel 0 0 9 8 2 ^{5/1 8 5 A BAD} - 21 - H99629 (36) of the end of the skin (8h) sits. 8. tape transport apparatus according to claim 7 »characterized in that that the control button or handle (90) mifc a bevel (98) sits on the O-Hing (100). 9. Tape transport apparatus according to one of the preceding claims, characterized by a tape drive mechanism which consists of a capstan (3 ^ i 11h) and a pressure roller (33) working with it, which drives the tape (26) into contact with the capstan (3 ^) holds, and by a pivotable cover (lh), which has a mechanism [ph) assigned to it for triggering the capstan ('Jo) and through which a gap between the capstan (36) and the jriollo assigned to it (3>) iiorvorgerufon is when the cover (lh) is swiveled into its open position so that a band (26) can enter the pill (36) and the roller (3 '^), 10 · Tape transport apparatus according to one of claims 1 -?, Gc ~ characterized by a tape drive mechanism, which consists of a capstan (11'l 114) inAnlage.hd.lt, whereoi die-ltolle '(110) να «! Spill (t lh) -wogged by hand and in. One maintained by dia ■ Iialcetis tangc (122) one of ten fcellung gobraci.ic can become, with the help of seinvöiikbaroti jJeckel ^ (ih) Or- η η η P ι λ t \ t * 'ι BATH 0 9825 / 18Sfe U99629 of the tape transport apparatus the hulk ("MO) after the release of the hook fcacige (122) is moved from the catch (i2k) to the spill (114) when the lid (i't) is closed. BAD ORIQiNAL O0S82 5 / 18S4 r s e it L e r s e i t e