JPS61293857A - Type bar for typewriter, etc. - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The object of the invention is a type of typewriter, etc., with characters arranged in a matrix mold, adjustable with respect to the printing counterposition by movement of the matrix in the X and Y directions. It's a bar.

This type of type bar is disclosed, for example, in U.S. Pat.
011 or from European Patent Publication No. 19453. There, on a base plate of a frame, individual types are arranged which are movable under the action of springs. The entire frame has a relatively large mass that must be moved in the X and Y directions for the positioning of individual characters relative to the print position. It is self-evident that it is advantageous if the movable mass is kept as small as possible.

The object of the invention is to design a type bar according to the prerequisite idea of claim 1 in such a way that only a small amount of mass can be moved and the construction and assembly are simple. Furthermore, the possibility is created in a simple way to configure the type bar variably, so that country-specific changes of letters or special symbols, for example for mathematical formulas or chemical formulas, can be carried out immediately. Ru. For this purpose, the configuration of the type bar according to the features of claim 1 is suitable.

A plurality of characters can be arranged on an individual lever, the levers then being configured in a simple manner according to a given machine type, for example to national specifications. The moving mass is relatively small. The features of claim 2 result in that the lever is guided in an orderly manner during the printing process, so that a good character position can be achieved = type according to the features of claims 3 and 4 The formation of the bar provides a relatively simple mounting of the lever. Claims 5 and 6 characterized in that this bearing has the advantage that a particular lever can be replaced without great expense if one of the characters arranged on the lever becomes unusable. The section contains selective proposals for lever elastic reservoirs. A spring is provided for the lever to be in a certain basic position or to be returned to the basic position after printing. According to the features of claim 7, as is known for example from type wheels, each lever can be provided with a centering member, for example a key, on its side facing away from the characters, the key being a printing hammer. Collaborates with Notsuchi. Centering of each character during the printing process is thereby achieved. Electromagnetically actuated rams, such as those known in type wheel machines as printing hammers, are suitable as printing hammers.

The present invention will be explained in detail on the basis of illustrated embodiments.

FIG. 1 shows a frame with a bend 2 with a knife edge 3 on the lower edge. The frame 1 has edge plates 4 and 5, which extend laterally. The upper edge plate 4 is designed in its front region in the form of a wedge, so that guides 6 for the levers 7 and 8 are obtained.

The levers 7 and 8 are provided with a notch 10 in the lower region 9, which, in cooperation with the knife 3 of the frame 1 for each lever 7 or 8, provides a knife bearing.

In the embodiment according to FIG. 1, the lever 7.8 has elastic fins 11.
is formed. This finger 11 is supported on the edge plate 5 and a lever 7.8 is mounted on the knife 3 on the one hand.
On the other hand, it is provided that it rests against the edge plate 4.

For this purpose, each finger 11 has a certain projection.

As is clear from FIG. 1, lever 8 is longer than lever 7. The levers 7.8 are arranged in such a way that the longer levers 8 are alternately adjacent to the shorter levers 7 in each case. In the example shown, each lever 7.8 has a letter 12 or 13. In the region of the letter 12 or 13 on the other side, each lever 7.8 is provided with a centering element 14 or 15. This can be achieved, for example, by a wedge extending in the longitudinal center plane of each lever.

The number of levers 7.8 depends on the required number of individual characters. For example, if characters are required in the typewriter 90, then fifteen levers 7 and fifteen levers 8 must be supported alternately in the frame 1 side by side. In known methods, the type bar is adjusted in the X and Y directions, for example by means of linear motors.

Assembly of the lever according to FIG. 1 is very simple.

Lever 7.8 is guided in frame 1 with elastic fingers,
The elastic finger is arranged on the right side of the edge plate 5 of the frame 1 with respect to FIG. The notch 10 of the lever 7.8 then rests on the knife 3. No other bearing members are required. .

Another embodiment is shown in FIG. There frame 16
has another form. Surfaces 17 for supporting the axis 18 or 19 are provided on the left and right sides of the frame. A lever 20 or 21 is fitted onto this shaft and is designed in its upper region as described in FIG.

Lever 2 G, 21 has an axis 18°1 in its lower region.
It is provided with a hole 22.25 which serves to support the lever on 9.

The levers 20, 21 have elastic fingers 24, 25 facing downward.
, the elastic fingers abut against the edge plate 26 or 27 of the frame 16, respectively. These elastic fingers 24, 25 also serve to hold the levers 20, 21 in a particular reference position. At the same time, the lever rests on an edge plate 28 which is designed towards the front as a clamp-like guide 29. The arrangement according to FIG. 2 has the advantage that the levers 20, 21 are completely identical. Only the characters 30 or 31 are different. Again, assembly is relatively easy. The lever 20.21 is inserted into the frame 16 and the shaft 18,1? is inserted and prevented from moving laterally.

Further assembly costs are unnecessary.

In both embodiments the frame 1, 16 or the lever 7.8 and 20° 21
is made from synthetic resin by injection molding. The letters 12, 13 or SO, 31 can each be molded simultaneously or one can be produced in a second injection molding step after the other.

In a modification of the illustrated embodiment, the frame 1 or 16K can also be provided with an elastic comb made of, for example, sheet steel, each lever being provided with an elastic finger of this comb. The comb can be mounted, for example, on the side of the guide 6 or 29 of the frame 1 or 16, the construction being such that the individual elastic part of the comb is in constant contact with the lever 7.8 or 20.21. is being used.

[Brief explanation of drawings]

FIG. 1 is an enlarged view of a type bar according to the present invention, and FIG.
The figure shows an enlarged view of another embodiment of the type bar according to the invention. Number in the figure: 1.16 frame 4.28 Stopper 7.8/20, 21 Lever 11.24/25 Spring

Claims (7)

[Claims] (1) In a type bar of a typewriter, etc., with characters arranged in a matrix mold, adjustable with respect to the printing counterposition by movement of the matrix in the X and Y directions, a plurality of characters ( The levers (7, 8/20, 21) carrying the levers (12, 13/30, 31) are attached to one frame (1, 1
6), and is pivotably supported on the levers (7, 8).
/20, 21) in the rest position under the action of springs (11, 24/25) stops (2, 2) of the frame (1, 16).
8) A type bar characterized by being in contact with. (2) Frames (1, 16) have levers (7, 8/20, 21)
A clamp-like guide (6, 29) is provided for the
A type bar according to claim 1. (3) the lever (7, 8/20, 21) is supported on the knife edge (3) of the frame (1) by a notch (10);
A type bar according to claim 1 or 2. (4) The levers (20, 21) are connected to the shafts (18, 1) of the frame (16).
9) A type bar according to claim 1 or 2, supported thereon. (5) It has elastic fingers (11/24, 25) attached to levers (7, 8/20, 21), and the elastic fingers are attached to the edge plates (5/26, 27) of the frame (1, 16). A type bar according to claim 1 or claim 2, wherein the type bar is supported. (6) A clamp-like spring is arranged on the frame (1, 16), which spring has one spring finger for each lever (7, 8/20, 21). Type bar according to item 1 or 2. (7) Each lever (7, 8/20, 21) is a letter (12, 1
3/30, 31) and the centering member (14, 15) on the opposite side.
), the type bar according to claim 1 or 2.