DE1611469A1 - Actuating device for carbon tape reels of a typewriter - Google Patents

Description

OLIVETTI UNDERWOOD CORPORATION New York (USA)

Actuating device for coble tape reels of a wire rubbing machine

The invention relates to an actuator for Carbon tape reels of a typewriter, inside which a Carbon tape feed reel rotatable in a longitudinal displacement level relative to one of the outer sides of the inner frame the typewriter is arranged.

Various relief measures have already become known _f by means of which a convenient and successful insertion of carbon tape reels is to be made possible. However, these measures have proven to be unreliable in operation and too costly to produce.

These disadvantages are caused by the actuation according to the invention. Setup for carbon tape reels avoided that are marked

^ "'■ ^' ■ -n ^ - ■■ - ■ .'- ■

is through a ^r eft '"iiSlter for the role, who in turn is out

009812/0521

consists of a flat panel wall, one of which is to accommodate the Role of certain mandrel protrudes, a sleeve for the called flat panel wall, which is on one of the outer sides of the ' Frame of the typewriter is attached and a device for limiting the downward movement of the holder when it is lowered into this receiving sleeve, said holder having an upper wall section, which protrudes from the, receiving sleeve and extends above the carbon roller belt that is received by the receiving mandrel can be so that this holder grasped by means of the protruding portion and conveniently in the receiving sleeve can be plugged in as well as pulled out.

These and other features of the invention will become apparent from the following description of a preferred embodiment of the invention in conjunction with the accompanying drawing stand out even more clearly · In the drawing: ■

1 shows a perspective illustration of a typewriter, seen from the left, with its cover plate facing forward has been peeled off, so that it exposes those areas in front of the platen that are used for handling the carbon tape roll and spool must be freely accessible,

Fig. 2 is a schematically shown, seen from above, partially sectioned view showing a carbon tape take-up reel arranged on the associated bearing structure, reproduces,

O098B2 / OB28

eiiien gchtfitt by the ¹ ÄuJnähmespuie · While ά handling the same for the purpose / the · on it

i ¹ äeö

Fig « 5 öiiiö vQö iifife feseföe'te
You © irtzeliie'iteK

ä page ⁵ deg ii

M ^ sdliiiienMöeik: § one leaves _# : ...

* 6 eiiie herätts§e "teeeiietie · Äösieiit egg whites * coil j deien VOrcie ^ ei ¹ Flatisöii Joirtgelasseii ΨΟΐάβη is §ö that dea? (Ääfiü tefiMliefae ausdetebä ^ e Kerw iüi Aue gedeiinten Zustaüd siolitbai ¹

* 7 the bobbin winder shown there according to * Fig. 6 in gmsäiiüiienge ^ ögenefi condition,

Fig. 8 shows a fine perspective view of a ¹ from dea? Machine worn Äaufnänmehulse with one of the same approved ijagerfaaiter one

and

Fig ». 9 a perspective view seen by reöfltM

of the Köüiebandrölleniiälters as well as one of these - to be attached

According to Fig _s 1, the typewriter shown contains an interior separated from each other first of two spaced

D098527 0S

- 4 -

161U69

arranged vertical walls 10 and a rail structure 11 is, in turn, carries the carriage 12 with the platen roller 13 'The Abdeckblechmantel 14 of the typewriter is shown in a position ge _t in which it is pulled down to the front of the engine block, so that a part of the front half The typewriter mechanism located on the platen 13 has become freely accessible and a wide variety of manipulations can be performed on it, such as inserting a carbon tape roll holder 15 or handling the carbon tape take-up reel 16 either for the purpose of removing or assembling the same. It should be pointed out that the holder 15 and the said coil 16 extend parallel to the side walls 10 and that the side parts of the sheet metal cover 14 extend outside the holder 15 and the coil 16, i.e. overlap them,

According to FIG. 8, said carbon tape roll holder 15 has been pushed into a receiving sleeve 17 from above. This receiving sleeve 17 consists of two large parallel walls 20 and 21, which by a front and a rear wall 22 are interconnected. An angle iron 23 » which extends from the receiving sleeve wall 20 to the left (see a, Fig. 4) lies on the horizontal stepped shoulder 26 a carrier 24 and is connected to this by a screw 2 5 tied together. The carrier 24 has a flange 27 bent at right angles thereto and pointing vertically downwards, while two guide troughs arranged on both sides of the same of the receiving sleeve so that this flange 2 7 in

^J "0O98 5 2 / 0S2Ö

~ ⁵ ~ ISl 1469

can slide downwards same before the carrier wirdV 24 secured in position by the screw 25 De * ¹ said flange 27 provides the receiving sleeve, the required Pestig- Jceite. '■

The carbon tape roll holder 15 Cs. Fig «8 u, 9) consists of a flat panel wall 30 with parallel front and rear ends of projecting narrow walls 31, In the middle between said outer walls 31 protrudes

- ■ _. .. ■ '■' - '■ _ _> .- ■ .. ■' . · ■ - .. ". '· - ■■ -. ■■" ■ .'_ ".> -. ^R Mounting spigot vertical forward, consisting of the two vertical "opposing circular segment-shaped parts 32 _β consists ■

This carbon ribbon roller holder 15 wii "d _t nachdeTft a carbon ribbon" - has been roll 35 'is pushed to its holding pin, is lowered into said Aufnähmehülse 17, until it reaches a position in which its lower edge 33 of wall, the bottom of the receiving sleeve touches "A The upper section of the panel wall 30 of the carbon tape roll holder 15 protrudes beyond the receiving sleeve and forms an easily accessible handle by means of which the holder 15 can be gripped in order to be lowered or pulled out of the sleeve 17.

The outer section 21 of the above-mentioned sleeve has a vertical slot 37 in its center, which is wide in the upper part and % ic h. . constricted in the area of my bottom · In this narrowest part are., y? n äßr lower

_; -, BAD ORIGINAL

starting, the opposing, locking grooves 38 "are provided. The two flexible pingers 40 are also located on the holder 1-5, which lie in the circumferential circle of the two approximately semicircular curved elements 32 ... and perpendicularly out of the wall 30 above the two mentioned elements 32 protrude · These fingers 40 have a natural spreading that is wider than the width of the slot 37 above the grooves 38 · For this reason, the pingers 40 snap when the said holder 15 is in its lowest position within of the slot 37, into the grooves 38 and lock the holder there immovably 42, which has been withdrawn from the roll of carbon tape 35; leads to the left in front of the front of the shear roller 13. Also on the upper section of the holder 1 7, there is provided a resiliently movable or flexible element 43 in the form of a wire which is anchored at 55 in the holder 17. A portion 45 of this wire'43 extends at right angles to the panel wall .30 and. is opportunity that the carbon ribbon is deflected above-perpendicular on its way, as FIG. 8 shows a result of the resilience, this wire .. any damage to the Kohlebandeis is während- · .- it is withdrawn from the roll 35, avoided « Uev holder: ilö can also contain a brim 44 into which e-inr a-bnelim> * ^! bar vibrator for a carbon ribbon or a woven Sefti

00 98 52 / O5 2Ä

- 7th

band «can be thawed :, where the last-mentioned can be used instead of Wn !. · '"■■ ^: "

Both the Auinahmehülse 17 as aucli <ter holder i'5 "are preferably" made of molded Plästikwerkstoff,

According to what has been said so far, a new strip of tape is safely and conveniently inserted into the sawmill by first pulling the cover sheet metal forward and then pulling the holder 15 out of the sleeve, whereupon a new Kohiebandi oil can be pushed onto ⁷ the receptacle: pin 32 of the holder 15 and finally the holder i'5 is pushed into the sleeve 20 "

From FIG. 2 it can be seen in particular that the carbon tape take-up reel 16 together with a 1st age r zapf en 50, the firmly connected to a face plate 51 of larger diameter is, forms a unit which are fastened to the carrier 52 by means of its end disk 51 (see FIG. 5) can, which in turn is attached to the left / wall 10. · This carrier 52 has two bent backward curving ^ a guide channel forming angle plates 47 with bent Edges that serve the said unit by means of their To include front disk 51 in the typewriter., Namely within the left side wall of the cover plate jacket 14, while it is in the forward sloping position. Fig. 1 is located. As can also be seen from Property 2,

ORIGINAL INSPECTED 009852/05 ^ 0 - 8 -

the mentioned coil unit contains an inner coil flange 53 and an outer flange 54 normally held together by pawls 55 attached to flange 54 The ends of the locking pawls 55, which are provided with a nose, engage in a circumferential groove 56 of the bearing journal 50. The mentioned coil unit is in the operating position during the pushing-in from above gripped by hand at its two flanges 53 and 54. After the coil unit has been brought into its operating position in this way, the gear 49 engages, the preferably consists of one piece with the flange 53, into the gearwheel 48, which, as FIG. 5 shows, rotatable is mounted in the machine wall and during the Operation of the typewriter is inevitably driven, so that it in turn the gear 49 and thus the coil drives in the tape take-up direction »

From Fig, 6 it can be seen that the spool flange 53 on his Inside carries a compressible core made up of several curved sectors 60. "These sectors 60 each form a part with the levers 61, which are pivotally mounted on -individual pins 62, which in turn of the Projecting flange 53 and preferably a contiguous one Make plastic casting with this one. The mentioned levers 61 have fingers 63 which reach down to the bearing pin 50 and normally come to rest on the section 59 of the same, with the larger diameter, as also the figure " shows. , _

009852/0528 - 9 -

From the inside of the flange 53 extends -.sich, -Each assigned to the mentioned fingers .63, each with a nose 64a, which has a section on the associated finger. reaches out and ensures that each one Sector 60 bearing lever 61 on the flange 53 snugly are held «Each lever 61 has a projection 65 and via these projections 65 and the aforementioned pegs 62 is each a self-contained? tensioned annular coil spring. so the levers. 61 together with the Sectors 60 are constantly being printed inwards reaches that the tape take-up core when the fingers due to displacement of the flange 53 from the section 59 of larger diameter "are pushed down", and in the journal groove 56 collapse, is compressed as this can be seen from Fig. 7 *

After the coiled carbon ribbon take-up spool has completely filled a distance _r of the carbon ribbon is necessary. This can be highly advantageous and easily thereby causing _f that a holder of the spool 16 engages and the entire coil unit from the Ftihrungsflansehen the üiinkelbleche 47 lifts out. Then, as indicated in Fig. 3, the person writing presses his fingertips between the spool flange 53 and the faceplate 51, whereby the flange 53 is pushed axially in front of the faceplate 51 so that the fingers 63 fall into the journal groove 56 This . has the consequence that the curved sectors 60 coincide,

009852/0520 '~ ¹ ° "'

as FIG. 7 teaches. In addition, the pivot pins abut 62 the other spool flange 54 during the described Forcing the flange 53 from the end disk 51 in the axial direction further, so that the pawls 55 from the Slide out groove 56 and the splash 54 falls off. Since the core has collapsed as just described, Now the wound and used carbon ribbon falls off down to the core so that it can be carried away.

Since the fingers 63 remain of the coil flange 53 in the process is still in the 'groove 56 of the bearing pin 50, this flange does not fall 53 from _e To the coil unit back for insertion into the typewriter to assemble, it is then only necessary to the other coil flange 54 on the bearing pin 50 until it has reached its locked position. During this pressing on of the reel flange 54, it hits the pivot pin 62 and, via these elements, takes the reel flange 53 with it until it returns to its normal starting position on the bearing pin 50 has reached «The pawls 63 of the flange 53 are lifted out of the groove 53 again so that they come to rest on the section 64 with a larger diameter and as a result the core assumes its expanded state again shows that the rear wall of the groove 56 is inclined towards the portion 64 with the large diameter.

- 11 -

009852 / Q§28

16-69

The coil unit is then put back in the typewriter used where they are from the angle plates already described 47 is held with folded edges.

The spool flanges 53 and 54 are preferably made of a molded plastic material, and to ensure that A ring 47 made of spring steel with support spring fingers ensures that the pawls 55 of the flange 54 do not lose their effectiveness. 58 provided for the pawls 55. ;

The spool flange 53 carries a number of leaf springs 70, which are arranged at stepped distances from the center of the flange and are approximately tangential to the "together" expandable core. These 7Q leaf springs are used to to grasp the front end of the coal band and to

active to fasten if the same during the free Rotation of the take-up reel is pushed towards the core »

Patent claims:

D / Wi - 20 177/78

009852 / Of28

Claims (1)

Patent claims: 1, actuator for carbon tape reels on typewriters, inside which a carbon ribbon feed reel rotatable in a longitudinal displacement plane on the outside of the inner frame of the typewriter is arranged, characterized by a holder (15) for the roller (35), which consists of a flat Panel wall (30) consists of which one for receiving the roller (35) certain Aufnahmedoni (32) protrudes, a Receiving sleeve (20, 21, 22) for said panel wall (30) on one of the outer sides of the frame is attached and a device (40) for limiting the downward movement of the holder (.15) when it is lowered in this Aufnataehtilse, where the said holder (15) has an upper wall portion which protrudes from the receiving sleeve (20, 21, 22 ·) and extends above the carbon oil belt (35) » 009852 / QS28 "* '" · ■■' / .; ■ 1β1Ί «9 "aas can be received by the receiving mandrel (32), so that this holder (15) by means of the protruding Section captured and conveniently in the receiving sleeve. (20, 21, 22) lowered and pulled out of the same can be· 2 * actuating device according to claim 1, characterized in that that a tape guide bracket attached to the upper wall portion is designed to hold the tape pull away from the roll that has been placed on the holder to move it towards the front of the type impact point. 3 · Actuating device according to claim 2, characterized by a resilient element that is mounted on the holder to ensure that the tape runs at an angle over the tape guide bracket, which excludes a sudden increase in tension within the band. 4 * Actuating device according to one or more of the Claims 1 to 3, characterized in> that the receiving sleeve has two parallel planes of longitudinal displacement extending walls and front connecting them and rear walls, with the panel wall of the holder has two parallel outer parts freely between the slide the front and rear walls of the receiving sleeve. O098 & 2/0528 " ³ " 161146? 5 · Actuating device according to claim 4, characterized by a holding device "acting between the receiving sleeve and the holder, through which the same in its lowest position is locked within the receiving sleeve, ■ 6, actuating device according to claim 5, characterized in that that the holding device consists of a slot in one of the two parallel walls, the its bottom is somewhat expanded, so that locking grooves are formed there and the further in its upper area has an upwardly widening entrance, with two further to the holding device within the circumferential surface of the receiving pin extending flexible fingers which, after the retainer is inserted into the sleeve, down and into slide in the locking grooves where they spread in opposite directions and under bias to lie down, 7, actuating device according to one or more of claims 1 _; to 6, characterized in that the carbon tape reel consists of a first flange with a hub, the bore of which fits slidably over a bearing journal which has a circular circumferential groove, one side surface of which is in the direction of that section of the bearing journal which has the larger diameter, 009852/0528 - 4 - is inclined, with a number of levers pivotable on the first flange are mounted so that they look in its Plane can move parallel, where they spool core sectors carry -and also have fingers that go down to the Reach down the bearing pin so that, if so, the former The flange is axially displaced on the bearing journal while raid his fingers in the circumferential groove of the Pivot on the inclined side of the same collapse, the above-mentioned core sectors are affected pull together under the force of the spring, while when the former flange moves in the opposite direction axially - is shifted, the fingers over the inclined Sidewall of the annular circumferential groove must run and be pressed outwards' so that the Xernseorien to be spread apart » 8 _e actuating device according to claim 7, characterized in that a second flange of the coil is designed so that it finds its place on the bearing pin on the other side of the annular groove and which is equipped with pawls that can snap into the annular groove to thereby to keep the second flange at a certain distance from the first-mentioned, with abutment elements being provided, by means of which the second flange is pushed under by the bearing journal, depending on the axial displacement of the first-mentioned flange, which causes a contraction : £ 5Ο9δ52 / 052δ ^ - 5 - - * - _AL 161 H69 of the core section ", 9, actuating device according to claim 8, characterized in that that the first face is axially displaceable on the bearing pin, which is in the axial Direction tapered conically down to a section of reduced diameter, while in this direction also extend the levers mounted on the first flange, each of which is rotatable on one of the first flange is journalled from extending pivot pins, the pivot pin still extending over the lever extends beyond and further comprising means for the displacement of the first flange on the journal between a position in which the fingers rest on the journal and a position in which the fingers lie on the reduced diameter part of the journal, limited, the arched sectors in the two border positions of the first flange are either spread apart or compressed. TO. Actuating device according to Claim 9, characterized through a nose on everyone '. Lever and a self-contained, ring-shaped one. Coil spring over all Noses is tense and burdens them, 11. Actuating device according to claim 7 to 10, characterized 00985? / 0528 - _t , ~ marked that the bearing journal with an end washer related, which is the "first plan vision and is formed so that it is from a part the typewriter for attachment D / toi - ao 177/78 0 0985 2/05 2 8