JPS5925645Y2 - Character selection device in phototypesetting machine - Google Patents

Description

[Detailed explanation of the invention] This invention moves a pair of left and right rotating dials up and down in a well-balanced manner, and also illuminates a group of characters within them.
The object of the present invention is to provide a device with a simple configuration and high printing efficiency, which can accurately select necessary characters contained therein by changing the rotation angle of a rotating mirror.

To explain the drawings, A and B are drum-shaped rotary dials of the same shape and size, and each dial shaft 3, 3 is inserted into a pair of left and right bearings 2, 2 attached to a frame 1 so that they can be raised and lowered and rotated freely. The dial shafts 3, 3 are provided with groove wheels 4.4 for rotation transmission, etc., symmetrically arranged on the left and right sides.

A support shaft 5 is set in the center of both dial shafts 3, 3, and a lever 6 that swings vertically around the support shaft 5 is provided, and the left arm of the lever 6 is centered around the support shaft 5. and the right arm part are provided with respective pin shafts 7, 7, which are connected to the dial shafts 3, 3, respectively.
Collar 8.8 fitted loosely against the shaft at the lower end of the
At the same time, the trochanter 9 provided at one end of the lever 6 is engaged with the eccentric cam 10 by the elasticity of the spring 11, and when the eccentric cam shaft 12 rotates, the lever 6 is attached to the support shaft 5 as the eccentric cam 10 rotates. Since the A-rotating dial and B-rotating dial simultaneously oscillate in the vertical direction around , the A-rotating dial and B-rotating dial repeatedly move up and down in opposite directions up and down by a certain distance at the same time.

An intermediate mirror 13 is fixed at the center position between the A and B rotating dials, and on the circumferential surfaces of both the A and B rotating dials, there are two upper and lower stages of a first block m and a second block n. The characters necessary for phototypesetting are divided into character strings (in this specification, including symbols and parentheses, these are collectively referred to as characters).

For example, in the case of 10 rows, the upper 5 rows are called the first block m, the lower 5 rows are called the second block n, and when the A rotary dial descends, the characters of the first block m are displayed on the intermediate mirror 13. The position of the letter row, the vertical relationship of the A and B rotary dials, and the intermediate mirror 13 are set so that the B rotary dial rises at the same time as it faces the intermediate mirror 13, and the - group characters of the second block n also face the intermediate mirror 13. I'll leave it there.

Therefore, the slits 14 in the A and B rotary dials are made of a length suitable for vertical movement of the rotary dials, and the light emitting element 15 and the light receiving element 16 are disposed opposite to each other with the slits 14 sandwiched therebetween.

An imaging lens 17 and a rotating mirror 18 are installed above the intermediate mirror 13, and when the light receiving element 16 is actuated through the slit 14 by a signal from the perforation tape, the image appears in the first or second block of the A or B rotating dial. At the same time, a group of characters including the required characters on the A and B rotary dials are irradiated by light emitting devices (not shown) in the rotary dials, and at the same time, the rotary mirror 18 is rotated by the required angle by the signal from the perforated tape. Therefore, only the required characters are selected from the above-mentioned group of characters, and these characters are printed on the surface of the photosensitive material 19 stored in the magazine through the slit of the magazine (not shown). This is what I did.

In this case, as is clear from FIG. 3, since there is no change in the optical path length, printing is performed accurately and clearly.

As described above, this invention supports a pair of left and right drum-shaped rotary dials by a lever 6 that is swingably held by a support shaft 5 provided between them, and rotates the A and B rotary dials by the rotation of the cam 10. Since the dials are moved simultaneously in opposite directions up and down, both rotating dials are always balanced and can move lightly up and down. Intermediate mirrors 13 are provided to reflect upward the letters arranged in groups on both rotating dials, and when the rotating dial A is lowered, the upper group of letters, that is, the letters in the first block M, is reflected upward. When facing the intermediate mirror 13, at the same time B
The rotary dial rises so that its lower group of characters, the second block n, faces the intermediate mirror 13, and conversely the A rotary dial rises so that the second block n of its character group faces the intermediate mirror 13. When facing the intermediate mirror 13, the B rotary dial is simultaneously lowered and its first block m is alternately transformed to face the intermediate mirror 13, and further this intermediate mirror 1
An imaging lens 17 and a rotating mirror 18 are provided at the front of the cam 10, and as described above, both the rotating dials A and B are at the turning point when the lever 6 changes to backward movement at the top or bottom point of the cam 10. A group of characters including the desired character prepared in the first block m or the second block n is illuminated by the light emitted from the rotating dial, and is selected from the group of characters by the rotation angle of the rotating mirror 18. Since the required characters are printed on the photosensitive material 19,
This has the effect of speeding up and down movements of the A and B rotating dials to ensure accurate printing.

[Brief explanation of the drawing]

The drawing shows a character selection device in a phototypesetting machine according to this invention.
A front view of the rotary dial in a raised state. FIG. 2 is a front view with the A-rotary dial raised and the B-rotary dial lowered, contrary to FIG. 1. FIG. 3 is an explanatory diagram showing the relationship between the rotating mirror and the photosensitive material. A, B...Drum-shaped rotating dial, 5...
...Spindle, 6...Lever, 10...Eccentric cam, 13...Intermediate mirror, 17...
・Imaging lens, 18...Rotating mirror, 19...
...Photosensitive material, m...1st block of the letter, n...2nd block of the same letter.

Claims (1)

[Scope of utility model registration request] A pair of left and right drum-shaped rotary dials, each having a spindle in the middle, are supported by a lever that swings by the rotation of a cam so that they can be moved in opposite directions up and down. An intermediate mirror is installed at the center of the dial to reflect upward the letters arranged in groups on both the A and B rotating dials. When the characters of the first block face the intermediate mirror, the B rotating dial simultaneously rises and the lower character group, that is, the characters of the second block, face the intermediate mirror, and vice versa. When the dial rises so that its lower row of characters (second block) faces the intermediate mirror, the B rotating dial simultaneously lowers so that its upper row of characters (first block) faces the intermediate mirror. Further, an imaging lens and a rotating mirror are provided ahead of the intermediate mirror, and the characters of the block illuminated by the light emitted from the A or B rotating dial are passed through the intermediate mirror and the imaging lens, and the rotating mirror is rotated. A character selection device for a phototypesetting machine which selects a character from a group of characters based on its corner and prints the desired character on the surface of a photosensitive material.