DE1921673A1 - Device for recording information - Google Patents

Description

date

Lawyer file number : 18 398

KABUSHlKI KAISHA RICOH, TOKYO / JAPAN

Device for recording information

The invention relates to a device for recording information, and more particularly, a recording apparatus using electrostatic photography.

In general photographic recording apparatus Of information, silver halides are used as the photosensitive medium, making the process both tedious and both the device and the materials are very expensive.

The invention creates an electrostatically operating device for recording information, in which the said post-

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parts of the known photographic devices are avoided.

The invention further provides a recording apparatus which has an electrostatic charge section, an exposure section, a developing section and a drying section which are arranged and cooperate so that the information is recorded on a recording medium.

The invention also provides an apparatus for recording of information in which the recording medium moves intermittently or intermittently in the exposure section will.

Furthermore, the invention provides a recording apparatus in which all of the pressure rollers described in the above paragraphs are arranged at the same time with the actuation of a single lever can be moved into positions removed from the recording medium are, whereby the feed path of the recording medium is opened and an insertion of the recording medium into the device is facilitated.

Finally, the invention creates a recording device in which the exposure time can be set as desired.

Essentially, according to the invention is a recording apparatus provided in which the continuously electrically or optically transmitted or transmitted information images successively projected and on one by the electrostatic photographic method at high speed Record carriers are recorded.

Preferably, according to the invention, as an information display device a cathode ray tube is used. A recording medium that has a light-

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Has a sensitive layer of special tin oxide or the like, is passed over the front plate of the cathode ray tube, its photosensitive layer being in contact with the front plate. In advance, the recording medium is electrostatically charged in the charging section, and then it is exposed in the exposure section through the light image formed on the face plate of the cathode ray tube. This creates an electrostatic latent image corresponding to the information light image. During its exposure remains the recording medium stationary stand · ^ oh the exposure it is transported to the developing section, where it is developed, and then it is ä further into the drying section, where it is dried and from where it is led out from the apparatus. For the intermittent transport of the recording medium, by means of which it is held stationary against the front plate of the cathode ray tube during the exposure, a drive mechanism is provided which will be explained in detail later.

By operating a single lever, all pressure rollers or rollers for the recording medium can be removed from the feed path at the same time of the recording medium are withdrawn so that the feed path is opened or for the insertion of the recording medium becomes accessible in the device «.

A single cam or is used to set the development time Control member which inclines a developing solution cup so that the level of the solution in the cup is changed.

The invention is to be explained in more detail below with the aid of the drawing will. The drawing shows in:

Fig. 1 is a side view of the essential parts of a device for recording information according to a preferred embodiment of the invention;

2 is a perspective view of an embodiment of an intermittently operating drive mechanism according to the invention;

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FIG. '' J a side view of an embodiment of a cam plate used in the Hechanismus according to Figo 2;

Fig. 4 is a perspective view of an embodiment a crouching member used in an unwinding time setting device;

Fig. ^C ;> a plan view of the control member according to Fig. 4;

Fig. B is a plan view of another embodiment of an intermittently operating drive mechanism according to the invention ;

Fig. 7 is a Froxit view of the mechanism of Fig. 6, and

Fig. Ό is a perspective view of a screw member that a squat is formed.

According to FIG. 1, a roll of a recording film 1, the * a photosensitive layer, sits loosely on a stationary shaft has, on the surface of which a photoelectric conductive layer is applied from zinc oxide or the like. The rolled up film 1 is perforated at one or both of its edges P A pivot arm 5 rotatably mounted on a shaft 6, which extending towards the rolled film 1 is provided with a guide roller 2 rotatably mounted at its free end, and equipped with two further rollers J and 4-. The rollers J and 4 serve as one of two electrodes, of which the other is shown as a wire electrode 7 and which charge the recording medium 1 effect. A drive shaft carries a drive shaft on the side of the electrode 7 opposite to the guide roller 2 a feed roller 8, which is integrally formed with a toothed roller 10. Since the perforations of the recording film 1 are in engagement with the teeth of the toothed roller 10 are, when the drive shaft 9 rotates, the film is pulled off the roller. In detail he will out of the roller 2, runs through the gap between the rollers

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and 4 and the electrode 7 and is driven by the feed roller 3 pulled further down.

The portion of the electrostatic charge formed by the rollers p, 4 and the electrode _t) is excited at the time the shaft 9 is driven, so that the film 1, dense :, sensitive surface faces downwards , is continuously electrically charged while it is moved forward by the sprocket 10 and the platen 8.

A film guide plate 11, which is rigidly attached to a stationary device part, is arranged below the feed roller 8. Below the front edge of the guide plate 11 there are two guide rollers 12 and 14 are _0, the roller 12 is rotatably mounted on a stationary apparatus part, while the roller 14 on a pivot member 13 is mounted rotatably at one end 13a, the .jehaltert in turn pivotally mounted on the stationary Geräteöeil is. The roller 14 is also normally urged against the roller 12 by a spring 15. This spring 15 is connected between the front end of an arm 13b, which is integrally formed on the pivot member 13, and the upper end of a connecting lever 28 which is pivotably mounted on the rear end 5a of the pivot arm 5.

Below the two rollers 12 and 14 is a film exposure section arranged, the an information imaging or projection device 16 such as a cathode ray tube or the like and a roller 17ι which normally against the front plate 16a the device 16 is pressed contains. The roller. 17 is rotatably supported at one end 18a of a pivot member 18 which is pivotable is mounted on the stationary part of the device, and is normally pressed against the front panel by means of a spring (not shown) 16a pressed.

Below the exposure section is a development section, which has a developer solution container 19 and two developer rollers 20 and 21. The roller 20 is on a drive

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shaft 22 mounted, uio rotates intermittently and. owns an integral toothed ring 25. The roller 21 is rotatable mounted at one end 25a of a pivot member 25 which is loose sits on a shaft 2-4, which protrudes from the stationary Goräteteil. Between the other end 25b of the pivot member 25 and the end 26a of a further pivot member 26 which is pivotable from the shaft 24- is carried, a spring 27 is connected. The other End 20 of the pivot member 26 is rotatably mounted on the lower end 28a of the connecting lever 28, which in turn is pivotable mounted on the upper part of the rear end 5a of the swing arm 5 is. As long as the pivot arm 5 is stationary, the pivot member 26 will not move back and forth, so that the roller 21 normally is pressed by the spring 27 against the roller 20.

The film 1 moved forward by the roller 8 and the ring gear 10 passes the guide plate 11, the two guide rollers 12 and 12 14, the exposure section and the developing rollers 20 and 21 and is from the ring gear 23, which is in engagement with its perforations stands, moved on.

The information light image to be recorded is projected onto the film 1 at the projection device 16 in the exposure section, so that electrostatic latent images are successively or continuously formed on the photosensitive surface thereof while it passes through this section. From the developer roller 20, the exposed film 1 is then immersed in a developer solution., Which consists of a carrier material with suspended therein _; ,,: _r resinated printing ink and having a high electrical resistance, stand shall look, so that the electrostatic latent image into a, _..; . visible image is developed. Thereafter, the film 1 comes out of the developing section through the rollers 20 and 21. pulled out-- .. _ ■ pulled out. _s,. ρ

Beyond the rollers 20 and 21 are a guide plate 29 » is fixedly attached to the underside of the pivot member 26, and a Walzencragplatüe 30, which is firmly attached to the stationary device part.

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is brought and consists of an elastic material, arranged. At the front end of the roller support plate 30 is a rotatable Roller p1 stored. Another roller 35 sits threateningly on one Drive shaft 32, which is held at one end 26a of the pivot member 26 and is normally pressed against the roller 31. Hau sees that film 1 is being developed by the two rollers 31 and 35 is passed out of the device through it.

In the de-exposure section, the ¹ film 1 must remain stationary during the period in which it is exposed, so that the drive shaft 22 carrying the developer roller 20 are driven intermittently: outside, by means of a drive mechanism as shown in a first embodiment in ^ 'i _t;. 2 is shown.

According to 1'i,; · 2, a shaft 34 · is provided, which at its one end carries a gear wheel -jo which meshes with a further gear wheel 35 which sits on the drive shaft 9 of the feed roller 8. At the other end is the Shaft 54- is provided with a cam disk 39 which has a ridge or ridge 8 which can mesh with a gear 37 held by the shaft 22 of the roller 20. The gear 37 meshes with the ridge 58 on the right-hand part of the cam 59 if the gear wheel 37 and the disk 59 are viewed from the side of the roller 20.

The cam 3S> has a semi-circular ridge 38a, which Mitbelpunkt coincides with the axis or the Hitbelpunkt O of the disk 39, and a ridge 38c with 36b, one end of the ridge 38a smoothly connected resp _e connected to this isb and gradually approaches the center O inside. The starting end 3 & d of the semicircular ridge 38a is removed from the opposite point 58e of the ridge 38c by a distance which corresponds to a specific exposure time of the film 1. If, therefore, the shaft 34 is rotated continuously in the direction indicated by the arrow a by a drive device (not shown), the gear 37 remains stationary when it meshes with the semicircular ridge 38a,

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while in the direction of arrow b it is one of the named Distance between the starting end 38d and the point 38e corresponding angle is rotated when it meshes with the ridge 58c. So it can be seen that the recording medium is intermittently from the Roller 20 and the ring gear 23 is moved forward or transported, which rotate in the rhythm of the gear that is in the is rotated intermittently in the manner described above. During this intermittent forward movement, the film 1 is rotated during the time in which it is exposed, and this exposure time, so the time at which the forward movement of the film is interrupted can be determined by a corresponding length of the ridge 38a can be set. The ridge 38c can also be designed in this way be that it gradually moves away from the center point 0 outwards.

The shaft 22 carries a sprocket 40 and two other sprockets 42 and 43 are mounted on a hollow shaft 41 which is pushed loosely over the shaft 24. A chain 44 is placed over the sprockets 40 and 42, so that the intermittent rotational movement of the gear 37 is transmitted to the sprocket 43. About this gear 43 and another Ketbenzahnrad 45, which is on the shaft 32 is seated, a chain 46 is placed so that the rotary movement of the gear 43 is transmitted to the roller 33. As a result, the recording film 1, which intermittently through the roller 20 and the toothed ring 23 are moved forward, due to the rollers 31 and 33 also led out of the device intermittently, without causing any loosening of the film.

If the recording medium is elongated, like the film 1 in the illustrated embodiment, it must be along its charging, Exposure and development path from roller 2 to roller pair 31 »33« «» inserted into the device.

In the following, the device for opening the film path will be described, through which the insertion of the film 1 into the Device is made possible along its path of movement. As in Fig. 1

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can be seen, a handle 47 is rotatably mounted at the upper or front end of the pivot arm 5, which in turn is provided with an engagement lever 48 and can come into engagement with an engagement plate 49 which is fixedly attached to the stationary device part. The engagement lever 48 is normally urged against the plate 49 by means of a spring (not shown). But if the handle 47 in J ¹ Ig. 1 is pulled to the left, the lever 48 is disengaged from the plate 49. If, after releasing the lever from the engagement plate 49, the handle 47 is lifted, the pivot arm 5 is rotated counterclockwise in FIG is, abuts against the shaft 9, and the pivot arm 5 remains in a position shown by the broken lines 5A. In this case, the connecting lever 28 is pushed down into a position also shown by a broken line 28A, so that the pivot member 26 is displaced into the position according to the broken line 26A. At the same time, a pin 50, which protrudes from the connecting lever 28 approximately in the middle between its ends, presses against one end 13c of the pivot member 13 'so that this is displaced into the position shown by the broken line 13A.

At said end 13c of the pivot member 13 is a pin attached, in such a position opposite the end 18b of the pivot member 18 that the pivot member 13 with the pin 51 abuts against the end 18b, the pivot member 18 being displaced into the position according to the broken line 18A. A Pin 52 attached to the pivot member 26 abuts against the end 25b of the pivot member 25 when the pivot member 26 is displaced, so that the pivot member 25 is pivoted to the position according to the broken line 25A · So if the pivot arm 5 and the Pivot members 13,18,26 and 25 are pivoted into their above-mentioned positions, so are those on the pivot arm or the The mentioned swivel links mounted rollers 2,3,4 · »14» 17,21 and offset accordingly, so that the movement or feed path of the

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Recording medium is opened. As a result, an elongated recording film 1 can be inserted into the device along its feed path from roller 2 to roller pair 31 _{} 33.}

From the roller 8 and the ring gear 10, the film 1 is down to the pair of rollers 12,14 continuously moved forward, because the Roller 8 and the ring gear 10 are both continuously driven by the drive device (not shown) in the direction of the arrow c rotated in Fig. 2, via the with the gear 36, which sits on the shaft 34, meshing gear 35 · After passing through the has passed through both rollers 12, 14, the film 1 is now moved forward intermittently by the roller 20 and the ring gear 23, that rotate intermittently.

To prevent the film 1 from being moved incorrectly and from being subjected to excessive or tearing stress, a mechanism is provided which causes the film to loosen or relax. This mechanism essentially consists of a loosening member 54, which lies opposite the guide plate 11 and is rigidly mounted on a hub 53 loosely pushed onto the shaft 6, and is arranged below the roller 8 and the ring gear 10. Depending on the actuation of the mechanism, which consists of the swivel arm 5 and the other parts described above, for opening the feed path, the loosening member can move back and forth. For this purpose, a pin 55 is mounted in such a position near the shaft ό on the swing arm 5 that this pin ^ pushes the loosening member 54 forward when the swing arm 5 is in the position according to the broken line 5A, at which the film that is, the loosening member 54 is rotated to the position indicated by the broken line 54Δ so that the recording film between the inclined guide plate 11 and the loosening member is slightly loosened. After this part of the film has been loosened, the pivot arm 5 is returned to the position shown with solid lines, whereby the loosening member 54 is also in its starting position according to FIG

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solid lines in which it hangs down. After this the film 1 has been set in the machine becomes the continuous one Movement of the film 1 by the roller 8 and the ring gear 10 in a suitable manner so relative to the intermittent Feed set by the roller 20 and the ring gear 23, that the loosening of the film produced in the manner described above can be maintained. The pair of rollers? 12.14 · also serves to maintain this relaxation.

The developer solution container 19 has a developer solution tray 57 »which is fastened to a support part 56 which in turn is rotatably mounted on a side wall of the device. A film guide plate 58 is disposed within the tray 57 and has holes in it along the ridge for the film. A circulation pump 59 for the developer solution is mounted on the bottom of the container 19, by means of which the developer solution contained in the container 19 is pumped through a pipe 60 connecting the pump to the base of the bowl 57 and pressed through the holes in the plate 58. Thereby, the exposed film 1 moved forward by the roller 20 is immersed in the developing solution. After developing the film, the solution flows over the rim of the tray 57 and returns to the container 19.

A mechanism for adjusting the development time is on the Side wall of the container 19 mounted. This mechanism causes the pan 57 to move so that the level of the developing solution within this shell according to a desired development time can be raised and lowered. For this purpose there is a pivot lever 62a on the side wall 19a of the container 19 with an integrally molded cam or control member 62

61a, which can come into contact with a part ^ a depending tab 61, which the support part 56 of the developer tray 57 is integrally formed. The shape of this control member 62 can best be seen from FIGS. When the pivot lever ^r 62a is moved from outside the device, the control member 62 is pivoted so that the with him in

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Contacting depending flap 61 is moved in length _e 1 to the right and left. To this end, the front end of the control member 62 is correspondingly bent or curved and always lies against the inner wall of the container 19 ", so that the control member 62 can safely support said flap 61 and the developer = · cup 57 i ⁿ a suitable inclined position can be kept _e the control member 62 may also be any other suitable, for example, disk-like shape having "with this arrangement, the developing solution passes over the one side edge of the shell 57, and returns into the container 19, wherein the Pec; el solution of the developer Wk can be raised or lowered by the inclination of the developer tray 57, so that the time during which the film is immersed in the developer solution can be changed according to the respective requirements.

On the output side of the roller 20, the ring gear 2 ^ .und the roller 21, a film guide plate 64 is arranged and attached to a hub 63 which is rigidly mounted on the shaft 24 such that the front edge of the plate is a small distance from the Has roller 20. This guide plate 64 prevents the film 1 from being wound around the roller 20 when it is set in the device. At one end 25a of the pivot member 25, a stripper 65 is disposed, which is pressed against the roller 21 and w on this roller adhering dye, dust and the like are removed. A fan 66 is mounted below the rollers 31 and 32 so that dry air is passed through channels 67 and 68 onto the developed film 1 and dries it.

It has already been mentioned that the invention provides a device for recording information in which the electrically or optically transmitted information images can be projected and recorded onto the recording medium in accordance with electrostatic photography in such a way that rapid information recording is effected continuously and automatically, without any complex procedure being necessary ₆ This considerably improves the efficiency of the information processing.

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Another embodiment of the device is described below for intermittent drive according to the invention based on Pig, 6, 7 and 8 will be explained.

A worm 103, into which the wedge 102 engages, is placed on a drive shaft 101 provided with a wedge 102. The worm 103 has a depression cam 105 which is in contact with a stationary part 104 and meshes with a worm wheel 106β If the pitch or pitch of the worm 103 is assumed to be P and the depression angle of the cam 105 to be α, the result is the height H the cam through the relation H »P χ ^ 60 -» *> * · ·

360 When the drive shaft 101 is rotated through the angle in the direction of the arrow (FIG. 6), the screw 103 is lowered a distance which corresponds to the height H because of the relationships between it, the stationary part 104 and the cam VM . The cutting edge 103 causes rotation of the worm wheel 106 in the direction of the arrow (FIG. 7) by an angle which is equal to P χ

is _β D, h. _} »- & ä a rotation of the worm 103 by an angle, the worm wheel 106 is rotated in the direction indicated by the arrow by an angle which is equal

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is. Then the worm rotates through an angle of X360 - ^) ⁰ , but because the resistance between the drive shaft 101 and the worm 103 is extremely small, the worm cannot turn the worm wheel 105, but it is a distance P χ 360 » »V » a »H raised and thereby returns to its starting position *. So when the drive shaft 101 rotates one revolution, the worm 103 rotates uia an angle ¹ ^ L , so that the worm gear 106 is rotated by an angle corresponding to the pitch P, but if the worm looks through the remaining angle 360 - C ^ rotates, the worm wheel 106 is not rotated. In this way, intermittent rotation of the cream-corner wheel 106 is effected.

From the above it can be seen that in the device

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for an intermittent drive according to the invention the worm and the worm wheel work together in such a way that the pressure cam formed on the worm causes the intermittent rotation of the worm wheel and thus the desired precise and reliable intermittent drive n respective 3Sa ¹ = requirements can be freely chosen so that different intermittent drive types can be chosen arbitrarily for advantageous maize ©

Of course, there are deviations from within the scope of the invention the illustrated preferred embodiments of the invention possible.

In summary, the Erfiadaag @ ia © ©! © kfcrostafciseh-photo · = graphic information recording ^ arriciitungjj in soft © in recording media through a ©! © idteQstatisehon charging =. . Cut, e ± n © a B ^ l ^ b & uiigsabselmitt sum Photographs event and recording, an Ätwlcklusngsabsclinitt and a drying section are drawn in this section © aüg © ordaet © a pressure rollers and ¥ orscliulbwalzen are made by di® Batätlgimg one - moved from a lever accessible outside the device into positions in which the feed path for the recording medium is opened so that the recording medium can be inserted into the device.

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Claims (6)

Claims Device for recording information, characterized in that a device (16) for the optical display of the transmitted information and a recording device which records this optically displayed information electrostatically and photographically are provided. 2. Device according to claim 1 _r, characterized in that the recording device has a charging device Os ^ -j?) for the electrostatic charging of a recording medium (1), a loosening device (54 ·) »by which part of the recording medium is loosened, an exposure device (16 _s 17) for exposing the recording medium to the light rays of the optically displayed information, a developing device (57) for Developing the electrostatic latent image formed on the recording medium by the exposure as well as a device (66) for drying the developed recording medium 5 and that the recording device further? contains a feed device serving the recording medium in the device, in which there are guide rollers (2 ₉ 13), feed rollers (8, 20), ₅ pressure rollers (14, 17, 21) and output rollers (51, 33) which in a certain position push the recording medium along the path through the device and can be displaced into a position in which the feed path of the recording medium is opened by actuating a single operating element (4-7,5) accessible from outside the device is, 3. Apparatus according to claim 2, characterized in that the feed device has an intermittent drive mechanism with a cam disk (39) which has a first curved ridge (58a), the center of which is on its axis of rotation © ₉ and which has a second ridge (38c ( beüitzt, which is smoothly connected to one end (38b) of the first ridge and progressively approaches the axis of rotation ^ 909847/0882 or removed from it; and that the drive mechanism comprises a gear (27) which engages with the ridges of the cam combs and sits on a drive shaft (22). 4. Apparatus according to claim 2, characterized in that an intermittent drive mechanism is provided which one on a drive shaft (101) slidably mounted in the direction of its axis screw (103) and a has a worm gear (-ICXi) meshing with the worm, and that the screw has a press-down cam (105) which is in contact with a stationary part (104-) in such a way that the worm is moved axially on the "shaft" as it rotates. ^l j). Device according to Claim 2, characterized in that the developing device contains a developer bowl (57), by means of which the height of the developer in it, and thereby the duration of the development, can be adjusted. 6. The device according to claim 2, characterized in that the loosening device has a part (5 ^) which, depending on the opening of the feed path of the recording medium by means of the opening mechanism, enters the path of the recording medium between one above the exposure device (16, 17 ) arranged feed roller (8) and the exposure device vorrückb ^ r and can be withdrawn from this V / eg when closing the Vorachubpfades _e 909847/0882 BADOFHa ₁ NAL