JPS604783B2 - phototypesetting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a phototypesetting machine equipped with a ruling function.

In a conventional phototypesetting machine equipped with a liner function, the curved section of radius R shown in Fig. 1 (hereinafter referred to as round corner R)
When drawing a ruled line, first move the photosensitive material or optical system appropriately to align the optical axis of the photographing optical system with point a in the figure, and then draw the desired round corner R pattern "1".
1 from the dial, bring it to the optical axis position, and print the round corner R "" at point a.

Next, in the same way, round corner R ")" at point d
After printing, the coordinates of points b and c in the figure are allocated and calculated, the values are input, and the settings are stored in the draw edge memory of the line drawing device. Then, a desired ruled line pattern is selected from the dial face, brought to the optical axis position, and a command is given to start the line drawing, so that the ruled line between b and c is drawn. As described above, the conventional method has the inconvenience of having to set the coordinates of both ends of the curved rule separately from the printing position of the round corner R, and it has always been desired to improve the workability.

In view of these points, the present invention simply provides a round corner R.
The present invention provides a phototypesetting machine that can draw ruled lines with round corners as shown in Fig. 1 by simply setting the printing position as the origin. a coordinate input button for inputting the printing position of the round corner as the origin; a storage section for storing the coordinates of the origin input from the coordinate input nail; a feed circuit for driving the feed system corresponding to the photographing optical system; a current position counter that calculates the current position; when the optical axis of the photographing optical system is positioned based on the memorized origin coordinates and a desired round corner is printed, the end coordinates of the round corner pattern are calculated by the lens magnification; Q and the radius r of the round corner pattern, and store the coordinates in the storage unit as a virtual origin, and compare the virtual origin coordinates with the current position of the current position counter to calculate the feed amount of the feed circuit. a calculation section for drawing a desired straight line between the two stored virtual origins based on a command from a ruling command switch; the calculation section, a feed circuit, and a shutter in the photographing optical system; A control unit that issues operation commands to the controller.

The present invention will be explained in detail below based on the drawings. FIG. 2 is a diagram showing an embodiment of a phototypesetting machine according to the present invention,
In the figure, 1 is a light source, 2 is a condenser lens, 3 is a dial containing various patterns, letters, symbols, etc. for round corners and ruled lines, 4 is a lens, 5 is a shutter, and 6 is a lens. A travel system in which a prism or a mirror is installed and a drive source 7 such as a horizontal feed pulse motor moves a character image forming point on the sensitive material drum 8, and 9 is a vertical feed pulse motor that rotates the sensitive material drum 8. 11 corresponds to the photographing optical system,
A feed circuit 12 provides a feed command to the feed systems 7 and 9 for moving the character image forming point, and a feed circuit 12 receives signals from the feed systems (drive sources) 7 and 9 to move the travel system 6 and the sensitive material drum. Current position counter for calculating the current position of 8, 1
3 is an arithmetic unit that receives signals from each block and performs various calculations; 14 is a storage unit that stores the coordinate layer as the origin input from the print position coordinate input button 15; and 16 is a normal character, symbol, or round corner. The R pattern printing command switch 17 is a ruling command switch. Now, the first
When drawing a rule with round corners as shown in the figure,
First, the print position coordinates a and d of the round corner R are inputted as the origin from the input button 15 and stored in the storage section 14.

Then, of these two stored coordinates, the value of the coordinate a is read out to the calculation unit 13, and the calculation unit 13 compares the value of the coordinate a with the signal sent from the current position counter 12. The difference is sent to the sending circuit 11. Then, the control unit 10 controls the travel system 6 and the sensitive material drum 8 by this value.
A command is sent to the feed circuit 11 to drive the drive sources 7 and 9 so that the optical axis 18 of the optical system coincides with the coordinate a on the photosensitive drum. In parallel with this operation, the desired round corner R pattern ""
” from the dial 3, and select the lens 4 with the desired magnification.
and position them in the photographing optical system. After confirming that these operations are completed, a print command is sent from the print command switch 16, and a drive command is given to the shutter 5 of the control unit 1, so that the pattern "'" of the desired round corner R is set at the coordinate a. It will be printed after it is moved back to the position of . At this time, information for identifying the type of pattern of the positioned desired round corner R, that is, information on the radius "r" of the pattern on the dial 3 and information on the magnification "Q" of the lens 4 are obtained by appropriate means. is detected and sent to the control section 10 and stored. When the first printing is completed, the value of the coordinate d is read out from the storage section 14 to the calculation section 13, and the optical axis 18 of the optical system is positioned on the photosensitive drum as in the case described above. It is positioned to match the coordinate d.

Further, in parallel with this operation, the round corner R pattern "" to be printed at the coordinate d and, if necessary, the lens 4 of a desired magnification are selected and positioned in the photographing optical system. Then, by operating the print command switch 16 again, the desired round corner R pattern "," is returned to the coordinate d and printed. Round corner R pattern ``)
Information on the radius "r" of the lens 4 and information on the magnification "Q" of the lens 4 are sent to the control unit and stored therein.

After printing the desired pattern at the coordinates a and d in this manner, the control section 10 then starts an operation for drawing straight lines.

First, when a rule drawing preparation command is sent from the control section 10 to the calculation section 13, the calculation section! 3 calculates the radius "R=r・Q" of the round corner R to be actually printed from the previously stored radius "r" and magnification Q, and then calculates the coordinate a stored in the storage section 14. , and the value of the radius "R" just calculated, and recognize this added value as the value of the virtual origin indicated by the coordinate b in FIG. Again, subtract the value of the radius R calculated in the same manner as previously calculated from the value of the coordinate d read out from the storage unit 14, and store this value as the value of the virtual origin shown at the coordinate c in FIG. do. Then, the calculation unit 13 uses this stored value of coordinate b and the current position counter 2.
The signal sent from 7 and 9 are driven. Further, in parallel with this operation, a desired ruled line pattern is selected from the dial 3 and positioned within the photographing optical system. When the preparation for marking is completed in this way, a marking start command is sent from the marking command switch 17.

Then, the control section 10 outputs a signal to the shutter 5 to open it, and also outputs a command signal to the sending circuit 11. The sending circuit 11 drives the drive sources 7 and 9 so as to send the light ball 18 of the optical system in the coordinate c direction at a predetermined speed. In this way, drawing a straight line from coordinate b is started. Next, when the arithmetic circuit 13 detects that the signal from the current position counter 2 and the calculated and stored value of the coordinate c become equal, that is, the optical axis 18 of the optical system reaches the coordinate c. When this happens, the arithmetic circuit 13 outputs a control unit 1 river line drawing end signal. Then, in response to this signal, the control unit 1 closes the shutter 5 and outputs a stop signal to the feed circuit 11, thereby stopping the drive sources 7 and 9. This completes the marking of the hall. As described above, in the present invention, when two desired round corners are printed based on the origin coordinates, the end coordinates of the round corners are calculated from the lens magnification and the radius r of the round corners, and the coordinates are calculated from the lens magnification and the radius r of the round corners. are stored as two virtual origins, and a straight line is drawn between these virtual origins.The relationship between the round corner pattern and its virtual body 19 is shown in FIG. 3A, which has been explained so far. In addition to the above, for example, the structure shown in FIG. 3B or C may be used.

In Figure 3B, "r'" in the diagram is replaced by "r" in Figure 3A.
Also, when printing a round corner at the starting point of the Aoi line using a pattern such as that shown in Fig. 3C, the fourth
As shown in the figure, if the feeding system is driven so that the center 20 of the virtual body 9 of the round corner pattern is moved by 1 in the x direction and m in the y direction with respect to the desired printing position a of the round corner. In this case as well, the point b obtained by adding the radius "R" to the desired print position coordinate a becomes the starting end of the straight line, as in the case described above. Further, the photographing optical system illustrated in FIG. 1 can also be used in place of the travel system 6 by, for example, fixing the optical axis 18 and moving the drum 8 in the left and right directions in the drawing. As stated above, the phototypesetting machine of the present invention can perform a series of printing positions of round corners and marking between the round corners simply by inputting commands from the outside with the printing position of the desired round corners as the origin. It has the great effect of being able to proceed as an operation, and eliminates the complicated work of calculating layout when creating complex printed matter such as ruled lines with round corners, and also eliminates the input setting work, improving work efficiency. It is given to improve the.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing ruled lines with round corners, Figure 2 is an explanatory diagram showing ruled lines with round corners.
The figure is a diagram showing one embodiment of a phototypesetting machine according to the present invention.
The figures show different examples of round corner patterns accommodated in dials used in the phototypesetting machine of the present invention, and Figure 4 shows the case of printing the round corner pattern shown in Figure 3C. It is an explanatory diagram. 1... Light source, 2... Condenser lens, 3... Dial, 4... Lens, 5...
...Shutter, 6...Travel system, 7,
9... Drive source, 8... Sensitive material drum, 1
0... Control unit, 11... Sending circuit, 1
2...Current position counter, 13...Calculation unit, 14...Storage unit, 15...Print position coordinate input button, 16...Printing command switch,
17... Rule drawing command switch, 18...
- Optical axis, 19... virtual body, 20... center of virtual body. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. A coordinate input button 15 for inputting the printing positions of round corners attached to the start and end points of ruled lines as the origin, a storage section 14 for storing the coordinates of the origin input from the coordinate input button, and a feed system corresponding to the photographing optical system. A sending circuit 11 that drives
and a current position counter 12 that calculates the current position of the feed system.
When the optical axis of the photographing optical system is positioned based on the stored origin coordinates and a desired round corner is printed,
The end coordinates of the round corner pattern are determined by lens magnification α
is calculated from the radius r of the round corner pattern, and the coordinates are stored in the storage unit as a virtual origin, and
A calculation unit 13 that compares the virtual origin coordinates with the current position of the current position counter to determine the feed amount of the feed circuit.
Based on the command from the line drawing command switch 17, an operation command is issued to the arithmetic unit, the feed circuit, and the shutter in the photographing optical system so as to draw a desired straight line between the two virtual origins stored above. A phototypesetting machine characterized by comprising a control unit 10 that emits light.