DE1222299B - Type carrier tape - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

G06k

German class: 43 a - 41/03 ^

Number: 1222 299 j ^

File number: O 6675 IX c / 43 a

Filing date: March 18, 1959

Opening day: August 4, 1966

The invention relates to a type carrier tape for a high-speed printing device, on which it can be replaced a number of spaced types is attached.

High-speed printing devices in which the types are interchangeable on an endless belt made of steel or plastic fastened by means of pins have already been proposed. Basically it is known to use an endless type band with types attached to it for high-speed printing devices. However, these types are difficult to interchange.

Further, it is known to use an endless belt of a type of printing apparatus as a to produce flexible tape from appropriate material.

The object of the invention is to attach the types firmly but easily detachable to the tape.

To solve this problem, the type carrier tape according to the invention is of the type mentioned at the beginning characterized in that the types each have two rear-facing feet passing through openings are stuck in the tape so that there are holes in the feet on the back of the tape, through which the ends of resilient wire brackets are inserted, and that the middle sections of the brackets, respectively are to be clamped between the open ends of the brackets of neighboring types.

Further details of the invention emerge from the following description of exemplary embodiments referring to the figures.

F i g. 1 shows a schematic representation of a type carrier tape according to the invention equipped with a type Rapid printing device;

2A shows an enlarged section from F i g. 1 along the line Π / ΙΙ;

Fig. 2B shows the same section, but is a reinforcement is provided on the back of the type tape;

F i g. Figure 3 shows the reverse side of the types that appear on the tape of Figure 3. 2 are attached;

F i g. 4 shows a section of FIG. 3 along the line IV / IV;

F i g. Fig. 5 shows a partially enlarged plan view of the endless belt on which several types, the are in a type body, are supported.

From Fig. 1 it can be seen that the types 2 are on an endless belt 1 with equal distances from one another are held in a row. It is also possible to arrange types 2 in two rows.

For example, as can be seen from Fig. 2A, Holding feet 3 and 3 'on the back of the Typenkör type carrier tape

Applicant:

OM Electric Industry Company Limited, Tokyo

Representative:

Dipl.-Ing. F. Weickmann

and Dr.-Ing. A. Weickmann, patent attorneys,

Munich 27, Möhlstr. 22nd

Named as inventor:

Rentaro Sasaki, Tomioka (Japan)

Claimed priority:
Japan March 20 (7327),

dated June 20, 1958 (31329, 31330)

pers 2, and these feet 3 and 3 'are inserted into holes 4 and 4' in the endless belt 1 located, inserted and with a wire bracket 5 on

^a 5 recorded on the tape. A screw can of course also be used instead of a wire bracket for the mounting.

The endless belt 1, to which the types 2 are fixed in this way, is laid around rotating drums 6 and 6 'and has holes 7 for driving it, which are located on both of its edges and in the projections 8, 8' of the drums 6, 6 ' protrude. A motor M is provided to drive the drums.

As already stated above, the paper to be printed on remains flat, and only a small number of types are necessary in order to achieve a high printing speed with the endless belt.
The distance between the rotating drums 6 and 6 'is determined by the width of the paper to be printed, ie by the number of letters or numbers that are to be printed on the paper.
Slots 9 for synchronization signals are provided in the tape in the positions corresponding to the types.

A phototransistor 11 receives the light rays from a lamp 10 through the slits 9 to generate synchronization pulses. The synchronization pulses can also be obtained through slots 9 which are designed in such a way that they are of their associated types on the periphery of a

609 608/169

Disk attached to the motor shaft.

Since the types are located directly on tape 1, it is not necessary to change the synchronization position to adjust between the types and the slots, even if the spacing of the types are not equal to each other. If the band 1 is placed around a cylindrical surface of a different shape, can synchronization can also be easily achieved. A number of hammers 13 corresponding to the number the type body corresponds to 2 is attached to the device. For example, need so much hammer be provided such as the number of types that are to be printed on a line. The hammers will operated by magnets 14.

A paper 15 is inserted into the space between the belt 1 and the hammers 13 and also an ink ribbon 16. The input signals are first read and stored by the known and commonly used discriminator circuit 12. If a type 2 comes to be printed , in the position in which it is to be printed, the hammer corresponding to this type is actuated by the above-mentioned synchronization pulses. .

If, in one example, type A is to be printed in one line when type .4 on the tape passes each of the hammers, this is effected by a continuous sequence of synchronization pulses that continuously print A onto the paper. On the other hand, all letters of the types on the tape can be operated simultaneously by all hammers when these types come into the printing position.

In this way, one line can be printed with one revolution of the endless belt.

The synchronization slots on the tape that correspond to the arrangement of the types on the tape, are scanned by the phototransistor, and the sync pulses that the phototransistor supplies, therefore show the relative position of the types to the hammers and control the discriminator circuit.

As can be seen from FIG. 2A, when the endless belt 1 directly engages the drums 6 and 6 'touches and they rotate at high speed, a loud noise from touching the Metal parts. It also shortens the life of the belt. When cracks appear, they become splinters ejected, and this is very dangerous.

In a further development of the invention, therefore, nylon or rubber is used on the back of the tape upset. This increases the life of the belt; the rotation noise is reduced, and moreover, breaks are avoided.

In order to fix the types 2 on the tape, as shown in Fig. 1, it is not sufficient to use the Type 2 can be attached by inserting a springy wire bracket 5 in the feet 3 of the types, because wire springs are not sufficiently stable. For this reason, the types from the The tape will fall out again, and the types themselves are not certain. One way to get the guys totally solid to be applied to the tape is shown in FIGS. 3 and 4 shown.

The feet 3 and 3 'are inserted into fastening holes 4 and 4' in the endless belt 1. After that are Ω-shaped wire springs 5 are inserted into holes 17, 17 'in both ends of the feet. The middle part of the spring wire is designed to hold the types tightly to the back of the tape, the Middle sections of the wire brackets 5 each between the open ends of the brackets 5 of adjacent types are to be clamped.

The Fi g. 5 shows the case that various types are provided in each type body on the endless belt.

Claims (2)

Patent claims: 1. Type carrier tape on which a number of interchangeable spacings are interchangeable Types is attached, characterized in that the types (2) each two after have rear-facing feet (3, 3 ') which are inserted through openings (4, 4') in the band (1), that there are holes (17, 17 ') in the feet on the back of the tape through which the ends resilient wire bracket (5) are inserted, and that the middle sections of the bracket each between the open ends of the stirrups of adjacent types are to be clamped. 2. Type carrier tape according to claim 1, characterized in that nylons · or rubber or similar material is applied to the endless belt of thin sheet steel or similar material is. Considered publications:
German Patent No. 509,940;
U.S. Patent Nos. 2101444, 2831424. 1 sheet of drawings 609 608/169 7.66 © Bundesdruckerei Berlin