SU364475A1 - MECHANISM OF RETURN OF THE PASSWORD OF THE PRINTING DEVICE - Google Patents

Description

one

This invention relates to printing devices that reproduce information.

Devices are known that perform a logical carriage return to the beginning of a line.

However, in them, the searchers are part of a power kinematic chain that switches on the carriage return mechanism to the beginning of the line, which reduces the reliability and stability of the device operation.

The proposed mechanism includes an actuating lever, through which the searchers are connected to the cam of the camshaft, a spring-loaded bracket mounted on the same axis with the searchers and connected to the actuating lever, and a dog with a fixed release lever, which is spring-loaded to the actuating lever and pivotally connected to the return lever carriages.

This makes it possible to increase the reliability of its operation.

The kinematic scheme of the proposed device is shown in the drawing.

In the direction of the selection lines 1 of the printing device, the searchers 2, 3, retracted from them with the help of an actuating lever 4 supported on the cam 5. Spring 6 and the searchers 2, 3 freely sit on the axis 7. The spring is spring-loaded to the lower condes of the searchers 2, 3. The lever 8 serves to lock the lever 4 when the carriage is

at the beginning and in the middle of the line. With the help of the bracket 9 and the lever 10, the searchers are blocked, when triggered, it occurs with a certain setting in the register a logical carriage return. The lever 4 is spring-loaded pivotally mounted on the lever 12, the dog 11, which at the end of its working stroke comes into contact with the stop 13.

When the carriage is at the beginning and in the middle of the line, lever 4 is locked with lever 8. In this case, the searchers 2 and 3 are depressed from the rulers and do not grope the rulers and form service commands. The searchers 3 serve to form service commands belonging to one register, for example, digital. If commands belonging to other registers are implemented, the searchers 3 are blocked by clip 9 and lever 10. At the end of the line, the unfolding lever 8 removes the lock from lever 4. Moreover, if after selection bars 1 have moved apart according to the command being implemented, lever 4 is suitable to the cam root 5 and the searchers 2 and 5 lie on the selection ruler /, and not one searcher falls into their grooves, the clamp 6 stops the lever 4. If one of the searchers 2 or 3 falls into the grooves of the rulers /, turning from the clamp 6 allows lever 4 follow the cool profile Step 5. When the lever arm 4 is at the minimum radius of the cam 5, the dog 11 engages the lever arm 4. With further rotation of the cam 5, when the lever lever -4 reaches the maximum radius of the cam 5, with the help of the dog // and lever 12 it turns on carriage return to the beginning of the line. During movement, the pawl 11 comes into contact with the ultrasound stop and, at the very end of the working stroke, disengages from the lever 4. The lever 12 and pawl // return to their initial position.

Subject invention

A carriage return mechanism of the printing device containing the searchers, freely

located on the axis and associated with the locking points of the carriage position and the installed register, and the camshaft cam, characterized in that, in order to increase the reliability of operation, it contains an actuating lever through which the searchers are connected to the distributor shaft cam, a spring-loaded bracket installed on the same axis with the searchers and connected with the executive lever, and a pawl with a fixed disengagement stop, which is spring-loaded to the executive lever and pivotally connected with the carriage return lever.