DE3106958A1 - RIBBON TAPE CASSETABLE ON A WRITING OR SIMILAR OFFICE MACHINE - Google Patents

Description

OLYMPIA WERKE AG. I , TP / Ac / Lü / PS 1828

February 24, 1981

Ribbon cassette that can be placed on a typewriter or similar office machine

The invention relates to an ink ribbon cassette which can be placed on a typewriter or similar office machine and has a storage room for a supply and a take-up reel for a ribbon of the type specified in the preamble of claim 1.

The conventional ones on a typewriter or similar office machine attachable ribbon cassettes have a storage space for a supply and a take-up reel for a ribbon on, wherein the ribbon from the supply reel via two spaced apart guide channels on the storage room can be guided through a printing station of the machine and rewound onto the take-up spool. The ribbons are made either from textile ribbons going from one spool to another be transported past the printing station several times or made of single carbon tapes that only pass through the Machine run, as each area of these ribbons can only be used once for printing. In addition, the Ribbons consist of multi-carbon ribbons that also run through the machine only once, but they do individual surface sections provide a multiple impression. In the case of the textile ribbons, the size of the feed step is not important because each area of the ribbon is used several times. In the case of single carbon ribbons, the feed step a full character width, while with multi-carbon ribbons a drive device for their economic utilization for the ribbon is needed that germoeren Step feed generated.

There are many ribbon cassettes with different color *

types of tape known to cause soiling of the hands when;

Insertion and removal of the cassettes is avoided and t

which allow easy interchangeability. So is through ϊ

the German Offenlegungsschrift 25 53 329 a cassette for ^s

a carbon ribbon known, which can be changed with one hand ί

is. However, this known arrangement only allows a constant \

th ribbon transport and sees no possibility to j

different drives for the ribbon depending on the type of ribbon. j

This known arrangement also does not allow an optimal configuration!

Use of the storage room for the supply and take-up reels, I

as the toothed roller and the pivot lever for the take-up reel>

are arranged in the storage room. The swivel lever for the?

Take-up coil consists of a saddle part, which is much f

Takes up space. When using this well-known ribbon cassette ξ

for typewriters with a correction device, a |

large stroke of the correction tape required in order to achieve this correction

bring the hinge into the impression position. The structure of the \

Ribbon cassette according to the well-known German disclosure S

Font 25 53 329 does not allow a compact arrangement of the < Inking and correction tape in the area in front of the impression point.

The invention 1 is based on the object of a ribbon \

To create a cassette that has a grain ϊ for all types of ribbon

pact structure allows easy and the ^recording: device in the machine with one hand placed and

can be removed from this without the machine being

Serving person requires a certain skill j

is. In addition, the ribbon cassette should be designed in such a way that j

that in typewriters with a correction device the |

Correction tape just below the ribbon in the cassette |

can be arranged. The stroke of the correction tape from the rest position to the print position should be as small as possible. This object is achieved by the invention characterized in the patent claim.

The ribbon cassette of the present invention is very compact and designed to save material. Due to the advantageous embodiment of the subject matter of the invention according to the claims 2 and 3, the correction tape can be arranged directly under the ink ribbon, which results in a very small stroke of the Correction tape results from the resting position in the print position. The correction tape can therefore be very fast with a small amount of force can be brought from the resting position to the impression position and then put back very quickly.

The further development of the subject matter of the invention according to Claim 4 enables the guide channels to have only a height that is only slightly greater than the width of the ribbon is. The subject matter of claim 6 ensures that the ribbon cassettes with ribbons for the one different step feed is required, can be made compact.

Further advantageous configurations of the subject matter of the invention can be found in the further subclaims.

Exemplary embodiments of the invention are described below with reference to the drawings. It shows:

Figure 1 is a plan view of the ribbon cassette according to the invention,

Figure 2 is a side view of Figure 1,

Figure 3 is a plan view of the invention Cassette with the lid removed and

Figures 4 and 5 show details from the figure

In tier Figure 1 is a plan view and in Figure 2 is a side view shown on a ribbon cassette 1. The ribbon cassette 1 consists of a trough-shaped bottom part 33 and a cover 35 that can be connected to this. The cover 35 has uniformly distributed surfaces in order to reduce weight and noise Holes 36. The cover 35 has bearing journals (not shown), which are inserted into corresponding bearing bores in the base plate 33 can be plugged and locked. The bottom part 33 of the ribbon cassette 1 has on its rear wall 38 protruding Bearing lugs 8, 10, which are in correspondingly designed bearing recesses 40, 42 of a receiving plate 2 of the receiving device for the ribbon cassette can be plugged into the machine. In addition, the bottom part 33 has on its side walls 44 and 46 locking pins 12, 14, which are used for locking the ribbon cassette on the mounting plate 2 with in this Co-operate receiving plate 2 mounted locking lever. at the assembly of the ribbon cassette 1 on the mounting plate 2, the lugs 8, 10 are first in the corresponding Storage recesses 40, 42 inserted, then the cassette pivoted against the Aufnahriepl atte 2 until the bearing

pin 12, 14 through the locking lever in the mounting plate 2 be locked. The assembly of the ribbon cassette 1 can therefore be carried out with one hand.

The trough-shaped bottom part 33 has a storage space 5 for a supply 3 and a take-up reel 41 for an ink ribbon 11. The supply reel 3 is rotatably mounted in the bottom surface 30 of the storage room 5 (FIG. 9), the ink ribbon 11 from the supply reel 3 via deflection guides 13, 15, 17 and 19, which are arranged on the floor surface 13 in the storage room 5 a guide channel 23 designed as a guide arm is guided. The ink ribbon is then guided through the printing station via a deflecting guide 21 arranged in an outlet opening 69 of the guide channel 23 and then via a deflecting guide 25 in an inlet opening 71 of a guide channel 24 designed ^{as a guide channel 1.} After leaving the guide channel 24, the ink ribbon 11 is guided via deflection guides 27, 29 to a winding drive 31. The deflection guides 27 and 29 are also arranged on the floor surface 30 of the storage room 5. The two guide channels 23, 24 are firmly connected to the bottom part 33, a type carrier 73 being rotatably mounted between their (23, 24) free ends by means of a stepper motor (not shown). The type carrier 73 has resilient prongs, at the free ends of which the types are arranged in a known manner. The type set in each case is hit against a recording medium 79 by a print hammer 75 driven by a magnet 77, with an imprint being produced in a known manner with the interposition of the tape 11.

According to FIGS. 3 and 4, the winding drive 31 has a toothed drive wheel 39, the one with the outermost turn

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the take-up reel 41 is constantly engaged. The take-up reel 41 is rotatably mounted on a pivot lever 45 (43), the pivot lever 45 about an axis 49 is pivotable and is acted upon by a spring 47 clockwise so that the outermost turn of the Take-up reel 41 is always kept in mesh with the drive gear 39.

The drive wheel 39 is via a step size switching device designed change gear can be coupled to a drive element 61 which can be driven by a motor 59. The change gear has interchangeable gear pairs 63, 65, which are used to generate a different step feed of the ink ribbon depending on the type of ink ribbon 11 selectable and immediately before or during the insertion of the supply 3 and the take-up reel 41 in the Storage room 5 can also be used. The gear 63 of the gearbox is firmly connected to the drive wheel 39, while the other gear 65 can be coupled to the drive element 61 of the machine and is firmly connected to a manual adjusting wheel 67. This manual setting wheel 67 can be rotated from outside the housing in the cover 35 by means of a finger.

The supply reel 3 is firmly connected to a toothed brake disc 81. This brake disc 81 has on its outer Circumference a toothing 83, in which an arm 15 of a one-sided firmly clamped, resilient round wire 85 engages, The ink ribbon 11 coming from the supply reel 3 is passed over the deflecting guide 13 around the arm 15 and then over the deflecting guides 17, 19, 21 continued in the manner described above. If the ribbon 11 in the direction of arrow 89 by the

Winding drive 31 is driven, then the arm 15 is lifted out of the toothing 83 of the brake disc 81, whereby the supply reel 3 is released. As soon as the tension in the ribbon 11 subsides again, the arm 15 of the resiliently mounted round wire 85 returns to the toothing 83 of the brake wheel 81, whereby the supply reel 3 is again blocked against turning back. The floors 26, 28 of the two guide channels 23, 24 have an offset 16, 18 relative to the floor 30 of the storage room 5 in such a way that below the guide channels 23, 24 in continuation of the floor 30 of the storage room 5 there is a free space 50, 52 for in the receiving device of the ribbon cassette 1 in the machine> - arranged machine parts and that the unwinding from the supply reel 3 ribbon 11 is guided at a close distance above the inner bottom surface 26 of the guide channel 23 π it the outlet opening 69. The machine parts are individual parts, e.g. B. the supply 56 and the take-up reel 58 for a correction tape 54 of a correction device. The bases 26, 28 of the two guide channels 23, 24 each have an outwardly facing, partially cylindrical indentation 20, 22 for the winding surfaces 60, 62 of the supply 56 and the winding reel 58 for the correction tape 54. The supply 56 and take-up reels 58 for the correction tape 54 are rotatably mounted in the receiving plate 2, for example, with the correction tape 54 being guided from the supply reel 56 via a deflection guide 64 through the printing station and via a further Uilenkführung 66 to the take-up reel 58 will. The drive of the winding spool 58 takes place in a known manner and is not shown in detail. By immersing the winding surfaces 60, 62 of the supply 56 and the take-up reel 58 in the indentations 20, 22 of the bottom part 33 of the

Ribbon cassette after it has been mounted on the mounting plate the correction tape 54 is arranged directly below the ink ribbon 11. This creates a small stroke to lift the Correction tape from the rest to the working position allows. The coloring and correcting devices form on the receiving plate 2 a compact device. Since the flange formed as a brake disc 81 of the supply reel 3, the Position levers 45 designed as a holding device for the take-up reel 41 and the exchangeable gears 63, 65 in a part 32 of the storage space 5 that is lower than the inner bottom surfaces 26, 28 of the guide channels 23, 24 are movably arranged, a compact arrangement of the ribbon cassette 1 is provided.

The guide channel 23 has a recess in its bottom surface 26 91, which cooperates with a locking device, not shown, of the machine in such a way that the work in Positioning of ribbon cassettes with carbon ribbons is not is possible. The locking device cooperating with the recess 91 in the guide channel 23 ensures that only Ribbons that do not have a coating can be brought into working position with a superficial sticking to the paper and by means of an adhesive tape of this dye "can be removed again.

In addition, the ßodenfläche 30 of the storage room 5 on the Transition point 16 to the guide channel 23 with the outlet opening 69 recesses for contact pins 68, 70, which are in the receiving plate 2 of the receiving device in the machine arranged, connected to a circuit and equipped with a warning device, e.g. B. connected to an indicator light are. This warning device is used to monitor the dye

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end of tape to warn the machine operator of the tape end approaching the pressure point. To this Purpose, the rear end of the ink ribbon 11 has an electrically conductive means designed as a scanning means on, which can be brought into operative connection with contact springs 72, 74 designed as a scanning means. These contact springs 72, 74 are mounted on the inner floor surface 30 of the storage room 5 and are via recesses 78, 76 in the floor surface 30 with the contact pins 68, 70 in the mounting plate 2 of the machine can be brought into engagement. The electrically conductive means attached to the ribbon end can be a vapor-deposited metal layer. The contact springs 72, 74 have cylindrical tongues 80, 82 which scan the ink ribbon 11 and perpendicular to the inner bottom surface 30 of the storage room 5 standing pins 17, 19 can be anchored. The pins 17, 19 have locking recesses 88, 90, into which locking lugs 92, 94 on the cylindrical tongues 80, 82 can be locked. Once the one at the end of the ribbon vapor-deposited metal layer over the cylindrical Tongues 80, 82 slides, the circuit to the warning device is closed via the contact pins 68, 70.

The inventive arrangements of the supply 3, the Take-up reel 41 with the retaining lever 45, the change gear and the contact springs for the warning device is a compact one Arrangement of the ribbon cassette 1 has been made possible. The storage room 5 for the supply 3 and the take-up reel 41 is has been optimally exploited by the invention. Furthermore, in typewriters with a correction device compact arrangement of this correction device with the ribbon device possible.

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In the context of the invention it is also possible to use the take-up reel 58 and the supply reel 56 of the correction device before the insertion of the ink ribbon cassette 1 with this (1) to be connected in such a way that the ribbon cassette 1 and the correction coils 56, 58 together in the receiving device of the machine can be inserted or removed from it.

Claims (9)

OLYMPIA WERKE AG TP / Ac / Lü / PS 1828 February 24, 1981 Patent claims: Ribbon cassette that can be placed on a typewriter or similar office machine and has a storage space for one Supply and a take-up reel for a ribbon, the ribbon from the supply reel over two im Guide channels arranged at a distance from one another on the storage room through a printing station of the machine can be guided and rewound onto the take-up reel, characterized in that the bases (26, 28) of the two guide channels (23, 24) have a Hohenversrttz (16, 18) opposite the floor (30) of the storage room (5), such that below of the guide channels (23, 24) in continuation of the floor (30) of the storage room (5) each have a free space (50, 52) e.g. for the inclusion of drive parts of a correction device. 2. Cassette each claim 1, characterized in that that the drive parts have a supply (56) and a take-up reel f 58) for a correction tape (54) of the correction device. 3. Cassette according to claim 2, characterized in that that the bottoms (26, 28) of the two guide channels (23, 24) each one to the outside facing, partially cylindrical indentation (20, 22) for the winding surfaces (60, 62) of the supply (56) and take-up reels (58) for the correction tape (54) have in the receiving device of the machine. 4. A cassette according to claim 1, 2 or 3, wherein the supply reel consists of a core and an attached thereto There is flange and the take-up reel is mounted on a movably arranged holder and wherein the outermost turn of the wound on the take-up spool By means of an elastic holding device with a stationary drive toothed roller that can be coupled to a drive element of the machine, is always kept engaged, thereby characterized in that the flange (81) of the supply reel (3) and the holding device (45) for the Take-up reel (41) in one opposite the inner bottom surfaces (26, 28) of the guide channels (23, 24) lower-lying part (32) of the storage room (5) are movably arranged. 5. Cassette according to claim 4, characterized in that the drive toothed roller (39) is in engagement with a change gear, which is in the lower-lying part (32) of the storage room (5) is arranged and has interchangeable gear pairs (63, 65) which are used to generate a depending on the different step feed of the ribbon type Ribbon (11) selectable and immediately before or can also be used during the insertion of the supply (3) and the take-up reel (41) in the storage room (5) are. * · · * Φ it * ae 6. Cassette according to claim 5, characterized in that the change gear consists of a pair of gears (63, 65), one gear (63) with the drive wheel (39) and the other gear (65) can be coupled to the drive element (61) of the machine and with a handwheel (67) is firmly connected. 7. Cassette according to one of the preceding claims with scanning means at the rear end of the ink ribbon, characterized in that as scannable means on the ribbon (11) an electrically conductive means, for example a vapor-deposited one Metal layer is provided and that the sensing means are contact springs (72, 74) on the inner Floor surface (30) of the storage room (5) at the transition point (16) to the guide channel (23) with the Outlet opening (69) mounted and via recesses (76, 78) in this bottom surface (30) with contact pins (68, 70) of a warning device in the receiving device of the machine can be brought into engagement. 8. Cassette according to claim 7, characterized in that the contact springs (72, 74) have cylindrical tongues (80, 82) which scan the ribbon (11) and stand vertically on the inner floor surface (30) of the storage room (5) Pins (86, 84) are anchored. 9. A cassette according to claim 8, characterized in that the pins (84, 86) have a locking recess (88, 90) into which the locking lugs (92, ⁽ j4) on the cylindrical tongues (80, 82) can be locked.