DE1905210C3 - Photocopier or tracing machine - Google Patents

Description

3 4

ken, but the guide plates do not correspond to the wicklusigstei! a photocopier or tracing device, the known bristles or narrow finger-like Ab- can be equipped in a known manner with an ammonia winder strip glicdein only punctiform attack tank on the material to be copied, has an upper half fen. With the term "close to each other" 12 and a lower half 14 on. The upper half is intended to express that the intermediate 5 12 is provided with an end wall 16, an upper wall 18 see the guide plates remaining gap and a lower wall 20. Similarly small compared to the length of the individual guide way has the lower half 14 of the development plates. These gaps are dimensioned so that part 10 has an end wall 22, an upper wall 24 and the guide plates independently of one another with a lower wall 26. The walls 20 and 24 '| ^u f ^e . ⁿ pull on the outer surface of the respectively assigned IO parallel to one another and form a channel 28 for the feed roller. Copy paper, which is transferred into the development part 10, the adjacent dies being ported over one at a time. Between side walls 30 of the longitudinal edge with the relevant draw-in roller in winding part 10, of which only the guide plates coming into engagement strip that is clear, a pair of draw-in rollers is rotatable over a wide area. The short 15 bearings that are aligned with the channel 28 and made of guide plates do not require a high degree of inherent rigidity. There is an upper draw-in roller 32 and a ^lower "J ^ere " in contrast to the known, finger-like, narrow draw-in roller 34. The draw-in rollers 32, 34 stripping members or the brush are made of a material of suitable hardness, so stressing the copied material is avoided. for example a phenolh? / .. Sealing elements are of outstanding importance in this context- ao 42 lay against the jacket surfaces 40 of the Emmcnhang by the relevant prior art of the tension rollers 32, 34 and together with the technology in no way form pin connector covers 44 on the development. Part 10 a fertilize, because these allow a constructive vapor-tight seal.

simplest means an automatic independent Di3 feed rollers 32, 34 can in the direction of the setting of each individual guide plate in more 25 PteUcA by means of a not illustrated motonais a level. Therefore, the Abstreifkan- see drive are driven in opposite directions. th of the guide plates automatically on the jacket-sensitized copy paper, which is in the development area of the associated feed roller, whereby the part 10 is to be developed, is in the addition flexibility of the individual guide plates and the gap 46 between the feed rollers 32, 34 emge-use several Tension springs per guide 30 brought and from there into the channel 28 transport ^ er 1st sheet contribute to the stripping edges of the guide The walls 20 and l <\ rungsbleche delimiting the channel 28 even then securely engage with the can be perforated in a known manner In order to keep the tlussi roller surface area in contact with the copy paper due to larger gene or gaseous developers, for example due to manufacturing or assembly tolerances or due to monia, from thermal expansions during operation of the 35 gene.

Device, the wiper edge of one or more guid- While the copy paper between the tmzugs-

rungsblf before rollers 32 and 34 do not run exactly parallel to the roller axis, it often has the

runs. The pin struts provided according to the invention, wind up or on the jacket surface

Therefore, bindings ensure adherence in connection with one of the feed rollers 32, 34. To that

the feature of using relatively 40 copy paper from the feed rollers 32, 34

short, tightly juxtaposed flexible feet and conveying them into the channel 28 are

support plates that the copied material is available for each operation according to upper and lower guides 50,

temperature and regardless of the manufacturing and which are identical to each other, so that in the following only

Mounting tolerances on practically its full width one of these guides is described in more detail, uie

is stripped evenly. Even sensitive 45 guide 50 consists, in particular, of dent · 1 g. J

As a result, the device can be copied with a high and 4, from a sheet metal section of the

Run through the conveying speed without the need for a flexible material, for example spring-resistant

Risk of damage to the copy material or a tem rustproof steel, is manufactured and a νor-

The device is clogged with paper. the edge section 52 as well as a slightly different

To hold the guide plates securely, 50 curved guide surface sections 54 are au twist,

expediently on each of the guide plates several near the two side edges of the Fuhningsflacnen-

distributed brackets are attached, each of which is fitted with a pin 56 over each section 54.

weils a tension spring with an associated strap sentlichen perpendicular to ^Fu h ™ ⁿ g ^s ^ ^ch _ f ^{nabst hn} "

are connected to the development part. 54 stands. The pins 56 can pass through opening η 58 in

With a view to efficient production, there are 55 in front of the walls 20 and 24 of the development part

preferably the guide plates of both feed rollers are sufficient. The openings 58 are slightly larger than_that

among themselves eleich pins 56 so that the guides 50 compared to the The invention is limited movable or deflectable below with reference to the development part 10

Drawing explained in more detail. It shows are bar. As a result, there is in emer thermi Fig. 1 a sectional side view of a lifting 60 deformation of the walls 20 and 24 to no

and guiding device according to the invention, noticeable Pee.influence the setting .der Fuh-

Αΐ ^{htih Shitt tlang the Li} SSS inl ^^ iSi SSSSSL

Αϊ.ηΐΐ? r ^{hematical section along the Li} 'SSS indlm ^ l ^ iSnim SSSSSL

F i R. 3 a view from above of the sheet metal form funnel-shaped flow 60,

n Guided tours according to the invention and 65 around the front of the house 52 to the top

Fig. 4 shows a section along the line 4-4 in ^^^ tZ ^ "λΊ ^ Τ ^ ΐ ^

F i R. 3 a Drauisic
the guides according to the invention and

Fig. 4 shows a section along the line 4-4 in ^^^ tZ ^ λΊ ^ Τ ^ ΐ ^ - Der'in Fig. 1 denoted altogether with 10 end-edge portions 52 fasten a plurality of brackets 62,

ζ. B. welded. Similar bows! 64 can use Screws 66 are attached to the end walls 16 and .22. The brackets 62 and 64 are with openings 68 equipped for receiving the end parts of a tension spring 70. Due to the tensile force of the tension spring 70, the upper leading edge section 52 is connected to the lateral surface 40 of the feed roller 32 in Maintained contact while the lower tension springs 70, the lower leading edge portions 52 with the Hold the jacket surface 40 of the lower draw-in roller 34 in engagement. This creates a constant forced contact between the leading edge sections 52 and the lateral surfaces 40 ensured.

Since the feed rollers 32, 34, which extend between the side walls 30 of the developing part 10, Considering the width of the photocopier or tracing device, a considerable length, e.g. B. 1220 mm or more, eccentricities can occur when rotating the feed rollers, which may result in one end of the leading edge portions 52 out of contact comes with the jacket surfaces 410 of one or the other feed roller. I'm going to avoid this according to the invention several relatively short guides 50 are provided, which dct in the longitudinal direction Infeed rollers 32, 34 lie close to one another. For example, along the infeed roller 32 four guides 50, each approximately 292 mm wide, while four are similar guides 50 can be present parallel to this along the draw-in roller 34. At each individual management segment can engage three tension springs 70, one at each end and one in the center so that a balanced pretensioning force is exerted on the leading edge portions 52, which are in contact with the intake rollers 32, 34. It goes without saying that the stated values for distance and number of guides and tensioners are only examples and depending on the specific

ao requirements can be changed.

1 sheet of drawings

Claims (3)

1 2 pierce sensitive copy material. In one patent claims: as in the other case, reliable stripping cannot be guaranteed. When using the plastic 1. Photocopier or tracing device with a release is due to manufacturing and assembly tolerance development part, on the one hand the copy material in the center, adjustment errors and changes in shape due to the pair of intake rollers leading into the winding part of the increased operating temperature and üiner the copied material on winding up on the direction between the stripping edge of the plastic feed rollers the hindering scraper and guide tape and the cylinder axis are lost. That has to approximately device that runs parallel to the Einzugswal- sequence that the Abstreifkame only at one end zen arranged, a funnel-shaped copier io applies against the cylinder jacket surface, while zwigutdurchlaß has forming guide plates, see the larger part of the wiper edge and the the front edges of which remain a gap with the lateral surfaces of the cylinder. The copy is Feed rollers in contact not properly stripped by means of tension springs; it can be due to the stand, characterized in that one-sided stress torn or kinked each Infeed roller (32, 34) several in axial direction 15 are tert. tion of the feed rollers relatively short, It is also known (German Auslegeschrift tightly adjacent flexible guide 1041795), multiply; triangular, perpendicular to the Sheets (50) are assigned, each of which is aligned with the cylinder axis, axially spaced from one another to provide stripping members which are distributed along the guide plates and which are arranged one on top of the other ordered tension springs (70) individually to the man ao independently of one another around one to the cylinder axis central surface of the associated draw-in roller can be pivoted along the parallel axis. One tension spring each big pressed and with the development part over holds the base surface ending in a cutting edge jeeine Alignment of the leading edge of the guide plate of the scraper members standing up with the relative to the axis of the respective feed roller cylinder jacket surface in engagement. Dp at this lozulassende Pin connections (56, 58) separately as solution, the individual finger-like stripping members each connected is that of the guide plates because it only has a very short material thickness seated pins (56) and openings (58) of the stripping elements corresponding route on the cylinder development .. 'eils are formed, the larger of the abutment, there are minor errors in the parallels-out diameter as the pins have and through the direction between the cylinder axis and that of the pins liindurchiagen. 30 pivot axis of the scraper elements harmless. Therefore 2. Photocopier odei tracing device according to An is but even when using a larger claim 1, characterized in that at each number of stripping members, the total distance on the several of the guide plates (50) distributed to the cutting edges of the stripping members with the cylinder orderly brackets (62) are attached which are in engagement opposite the cylinder longitudinally respectively a tension spring (70) with an associated measurement is relatively small. As a result, will Neten bracket (64) connected to the development part, the copied material versind when stripping over its width, divides point-wise claimed, which in turn is easy to allocate 3. Photocopier or tracing device after damage to the copied material and operational disruption 1 or 2, characterized in that the stanchions leads. Guide plates (50) of both feed rollers (32, 40) The object of the invention is to provide a Fo-34) are equal to each other. to create tokopier- or pause device, in which with little effort, especially without high production and assembly tolerances, for a safe also brush sensitive material to be copied from the Ein-45 tension rollers of the developing part is taken care of itself The invention relates to a photocopier or pause if, in the course of operation, a certain form device with a development part, a copy of which should come from the stripping device,
This task is achieved according to the invention by introducing well into the development part pair of rollers and one releases the copied material from being wound up, so that each feed roller has several stripping and so direction of the feed rollers that prevent the feed rollers from being axially short, relatively short, tight guide devices, which are arranged to roll parallel to the feed-in adjacent flexible guide plates, are arranged in a funnel-shaped copier, each of which has by means of filling sheets forming the duct along the guide sheets distributed tension springs ren front edges are in contact with the outer surfaces of the individual on the outer surface of the associated draw-in rollers by means of tension springs. 55 traction roller is flexibly pressed and with the development part via an alignment of the guide (French patent 1 227 052) with the development of a known photocopier or tracing device, pin connections allowing a draw-in roller are separate to the front edge of the sheet relative to the axis of the respective strips of the copied material from the copying cylinder Brush or plastic tape provided. The brush is connected, which is seated on the guide plates or the plastic band runs parallel to the 60 zenden pins and openings of the development part of the cylinder and extends over its full length. They are formed that have a larger diameter than the pins about an axis parallel to the copying cylinder and through which the pins protrude,
pivotable and are relatively short guide plates by means of a single sub The tension spring is pressed against the outer surface of the cylinder - in the present case, guide plates are to be understood. A soft bristle is used for the brush, the length of which is small compared to the length of the material provided, there is a risk that the bristles feed rollers, but large compared to the material of the leading edge of the material to be copied is deflected or strengthens the guide plates, so that it kinks with each input will. On the other hand, stiff boron pulling roller can merge several guide plates.