DE7333346U - Continuous ribbon cartridge - Google Patents

Description

I * 1 ,

Standard Elektrik Lorenz AG
Stuttgart

R. Dobruca-3

Continuous ribbon cartridge

State of the art

In office machine technology, it is becoming more and more common to use ribbon cassettes instead of loose ribbon reels use. In a known embodiment, the ribbon is inside the cassette from a reel to a second rewound. In another, e.g. The color ribbon is known from the DT-AS 2 Io8 742 version in endless form in tight loops inside the cas', ette stored. With a pair of rollers arranged laterally in the cassette, the ink ribbon is moved over an outer one Guide withdrawn from one side of the cassette and fed back on the other side of the cassette. A filling of the cassette takes place in such a way that the tape in its entire length over the roller drive in the cartridge is being stored. Then the free ends of the tape are glued or welded together.

This type of cassette filling has the disadvantage that it is very time consuming, the tapes, which are often many meters long in the cassettes.

task

The invention specified in the claims is therefore based on the object of filling endless ink ribbon cassettes to simplify with tape material.

August 31, 1973

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R. Dobruca-3

advantages

The advantages achieved by the invention according to the claims are in particular that the zigzag layers Ribbon folded into a package is easy to handle and in just a few simple steps the ribbon cassette that has been opened for this purpose can be v / grounded. This gives the possibility that the ribbon cassettes can be refilled by the consumer. So far it was common to use such cartridges to be thrown away after use.

Description of the invention

The invention is explained in more detail below using an exemplary embodiment in conjunction with the drawings. Show it:

FIG. 1 shows an ink ribbon cassette with the cover plate removed and with an inserted ribbon package according to the invention

Figure 2 shows the ribbon cassette of Figure 1 after a short time

Use.

Figure 1 shows an ink ribbon cassette 1 for typewriters or the like. In which the cover plate is removed. As the illustration shows, the ribbon 2 is zigzag-shaped Layers folded to form a package 3, the ends of which are connected to one another.

The package 3 is removed for insertion in a compact form of a package or the like. The interconnected The ends of the ribbon rest against package 3 by half the circumference. For insertion, one or both sides Unfolded a few layers to form a loop

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results. Thereafter, the package 3 is shown in the wines loaded in the ribbon cassette 1. The clear width of the interior of the ribbon cassette 1 is slightly larger than the ribbon 2 is wide. The loop is threaded into a narrow slot 4 on one side (left) and pulled by a clamping device consisting of a nose 1 a and a leaf spring 5. Along the front of the ribbon cassette 1, the ribbon 2 is held by ribbon guides 6. On the other side (right) will the ribbon 2 is fed back into the ribbon cassette 1. Inside the ribbon cassette 1 is a pair of rollers 7/8 arranged, between which the end of the loop is passed. The roller 7 is driven from the outside. the Roller 8 is pivotably resiliently mounted via a lever 9 and presses the ink ribbon 2 against the roller 7. After insertion of the package 3, the ribbon cassette 1 is closed with the cover plate and is thus ready for use.

FIG. 2 shows the ribbon cassette 1 of FIG. 1 with the cover plate removed after a short period of operation. As already indicated, the roller 7 is connected to a drive in the inserted state. This will make the ribbon 2 pulled out of the left side of the ribbon cassette 1 during a write operation and moved over the ribbon guide 6 in Arrow direction passed the pressure point to then to be fed back to the ribbon cassette 1 via the pair of rollers 7/8. By peeling off the ribbon 2 the package 3 is unfolded layer by layer from the left. At the same time, the ribbon cassette 1 is stored over the pair of rollers 7/8 supplied ribbon 2 in the right part of the interior of the ribbon cassette 1 in irregular loops 2a, which urge the rest of the package 3 to the left, as shown in FIG 2 shows. In the course of a complete revolution of the ribbon 2, the package 3 is completely unfolded, so that thereafter

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the entire interior of the ribbon cassette 1 is filled by the ribbon 2 stored in loops 2a.

2 sheets of drawings a

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Claims (1)

1. Endless ribbon cassette, the interior of which has a width adapted to the ribbon width and which is provided with a ribbon exit point, with a ribbon insertion point, and with drive means at the ribbon insertion point, and in which the ribbon lies in irregular loops after the first pass, characterized in that, that the band (2) is folded together in zigzag layers to form a package (3), the ends of which are connected to one another, before the first pass (1). 2. Endless ribbon cassette according to claim 1, characterized in that the dimensions of the package (3) are adapted to the interior of the ribbon cassette (1). August 31, 1973
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