FR2687653A1 - RECEIVER FOR INDIVIDUAL SHEETS, FORMS AND THE LIKE, ESPECIALLY FOR PRINTERS. - Google Patents

Abstract

The present invention relates to a receiver for single sheets, forms and the like, in particular for printers, of different lengths, comprising an adjacent transport device for ejecting single sheets or forms. - According to the invention, the receiving surface (8) is horizontal in the direction of transport (3) or inclined against the direction of transport (3), and converts to the direction of transport (3), transversely, from a flat surface (11) to the respective end edge (10), into a concave curved surface (12).

Description

The present invention relates to a receiver for sheets

  individual forms, and the like, in particular for printers of different lengths, having a neighboring transport device for ejecting individual sheets or forms. It is known to form a paper receiver for a recording apparatus, not in truth as a final receiver, but as part of a repeated printing process, from a pair of guide rails, on which rests, in parallel marginal areas, a sheet of paper which, moreover, is still held in the printer between pressure rollers by its rear part Thus, contact with a previously printed sheet is avoided, so that it, because of the forces

  electrostatic, can not stick to the next sheet.

  However, after a sheet has been printed on both sides, the press rollers no longer hold it, so that it falls between the pair of guide rails and gives against the previously printed sheet In this phase, however, there is the problem of getting out

  printed sheets of the printer For this purpose,

  longitudinal vases arranged at a distance from one another

  are provided on a flat plate, ribs that do not facilitate

  neither read nor favor the extraction of the sheet or stacking of leaves As a result, no attention is devoted to an ergonomic extraction process and

appropriate (DE-4023402).

  The present invention aims to provide a receiver, suitable for extracting leaves without creasing,

  for a plurality of documents, sheets,

  printing piles and the like, which differ significantly in their external dimensions and in terms of the length-to-width ratio (for example by length-to-width ratio inversion), and moreover by their rigidity, so that a quick and easy extraction is possible even in the case where the attention of the service personnel is diminished. For this purpose, the receiver for individual sheets, forms and the like, in particular for

  printers, of different lengths,

  transport for the ejection of single sheets or forms, is remarkable, according to

  the invention, in that the receiving surface is horizontal

  in the conveying direction or inclined against the direction of transport, and converts in the transport direction, transversely, from a flat surface to the respective end edge, into a surface

arched concavely.

  The advantages obtained by virtue of the invention consist in particular in that a bearing surface shorter than the largest length of sheet can be chosen without the sheets being liable to bend, without the need for very narrow and long documents. dpend, so that all the printed objects project from a value which is appropriate to seize them optimally It is furthermore advantageous that, corresponding to the guidance outside the printer, the sheet or the document is transversely plane , while at the end edge of the receiver, transverse bending is created which facilitates the capture. At the same time, practical tests have shown that

  The shape of the projecting part of a document is guaranteed.

  Advantageously, the entire receiving surface forms a triangular or trapezoidal flat surface, the base of which extends at the level of the entrance edge for the individual sheets or the forms, and the residual lateral surfaces form plane triangles. or concavely curved, lying in other planes rising from the inside to the outside This embodiment of the surface hinges the individual sheet, at one end, inwards and makes it possible to obtain a geometrical shape , which can be uniquely described, of the receiver, which can also be manufactured correspondingly by a machine Long and narrow documents retain a good

  stability of shape in the projecting part without

Med.

  According to another characteristic of the invention, the receiving surface is divided, in the transport direction, into stepped surfaces. This development makes it possible to provide an orientation of the hand grasping the document by scanning probing and, in addition, Very short lengths are safely supported when they leave the printer at the ejection speed. However, a particular advantage is that short documents can be captured as safely as long sheets of paper.

  striking at the level of the staged surfaces.

  To prevent documents or sheets from

  feast, nonchalance or other

  undesirable changes in shape, it is moreover

  that the inclination of the receiving surface in its

together be adjustable.

  Ergonomic requirements are even more strongly

  taken into account in that the staged surfaces are

  as separate parts and can be slid one below the other in a nested manner At the same time, the realization of such receivers and a possibility of

  during manufacture are favored.

  Preferably, individual staged sections are

  Thus, the hold effect may be increased or a violent transport movement of the printer may be stopped. The figures of the annexed drawing will make clear how

the invention can be realized.

  Figure 1 is an overall perspective view of a

  printer having a receiver and a chassis.

  Figure 2 is a top view of the receiver.

  Figure 2a is a section along the line B-B of Figure 2.

  Figure 3 is a left side view of the receiver.

  Figure 4 is a right side view of the receiver.

  Figure 5 is a longitudinal section along line A-A

of Figure 2.

  A receiver 1 (FIG. 1) is arranged on a printer 2.

  In the transport direction 3, which is determined by the direction of rotation of a conveying device 4, extends a base plane 5 at an angle 6, i.e., inclined towards the transport device 4 (see Figure 5) Angle 6 can

  for example, about 6 to 15 degrees.

  Printer 2 is on a chassis 7 that is not here

described in detail.

  Receiver 1 is for documents or forms

  printed or cut, such as individual tickets

  tickets, invoices, checks, invoice control sheets, multiple bundles, airline tickets (as individual or multi-bundle tickets), tickets with barcodes, documents cargo, accounting certificates, trip registrations, boarding passes, reservation tickets, packet tags, and endless

  all the aforementioned objects, which individually leave the printer.

  A receiving surface 8 presents, considering the

  transport direction 3, a base 9 and an end edge 10 at the base 9, which is associated with the im-

  primante 2, the receiving surface 8 has a flat surface 11.

  Along the conveying direction 3, this flat surface 11, to a respective end edge 10, converts to a concavely curved surface 12, the concavity

  extending transversely to the direction of transport.

  In the area of the base 9, is formed a pair of shells

  The receiver 20 1 additionally has an upright 15 on its underside at a substantial distance from the support shell 14 (FIG. 5).

  A modification or adaptation of the angle 6 can be obtained by adjusting the height of the upright 15.

  The receiving surface 8 is formed over its whole extent 16 from the base 9 as a triangular or trapezoidal flat surface 11, the base 9 extending over an entrance edge 17 for the forms or the individual sheets. Residual side surfaces 18 on the outside of this triangle form planar or concavely curved triangles in other planes 19 rising from the inside out while the flat surface 11 extends from the baseline 9 to the end edge 10 forming a tip 20, the end edge 10 is arched due to the elevation of its

plan 19.

  It has been found that the shape of the end edge 10 is an important element in influencing the extraction of

  individual sheets or forms or the receipt of

  long and narrow documents ready to be seized, to keep their shape While the paper at the edge of entry 17 forms the flat surface 11, it takes, at its last point of support, the shape of a parabola, or approximately a parabola To prevent long, narrow documents from bending, the still flat parts of the flat surface 11, press them and then bend them in the direction of transport 3 to

  outward and upward A curvature of the ridge of ex-

  tremity 10 according to the formula Y = 0.001 x x proved usable, Y representing the height of the receiving shell above the base passing through the center 21 of the shell The dish found can be in practice

  approximated by a radius R = 500 mm, correspondingly adapted

  spanning the size of the receiver, passing through point 20.

  The beginning of the parabola or corresponding ray moves along the triangular lines in phantom in Figure 2 We can of course transfer this parabola on

  the remaining flat lateral surfaces 18.

  As shown, the surface 16 can be divided, in the

  transport direction 3, in stages 22, 23, 24 (FIG. 5).

  By the support shells 14 or the uprights 15, the

  inclination of the receiving surface 8, in its entirety,

  can be adjusted, whereby the angle 6 is changed.

  On the other hand, the stepped surfaces 22, 23, 24 can be made as separate parts which are slid one below the other in a nested manner.

  individual staged sections 25 may be liftable.

  FIG. 2a shows the transitions 26,

  according to the cutting lines B-B, which are flat.

  According to FIG. 3, the parabolic contour with its rising planes 19 is visible. The stepped surfaces 23 and 24, which are stronger in their median zones, are also

visible in Figure 3.

  In FIG. 4, the width of the support shells 14, as well as a possible gripping width 27 of the transport device 4, are visible, as is the ratio of this width to the total width 28 All the width dimensions are symmetrical relative to the half-widths 29 and the heights 31 of the stages are chosen according to the

  thicknesses of documents or individual forms and should be a few millimeters, for example 5 mm.

Claims (5)

  1 Receiver for individual sheets,   and the like, in particular for printers of different lengths, having a neighboring transport device for ejecting individual sheets or forms, characterized in that the receiving surface (8) is horizontal in the direction of transport ( 3) or inclined against the conveying direction (3), and converts in the conveying direction (3), transversely, from a flat surface (11) to the respective end edge   (10), in a surface (12) concavely curved.   Receiver according to Claim 1, characterized in that the assembly (16) of the receiving surface (8) forms a plane (11) triangular or trapezoidal surface, the base (9) of which extends at the level of the edge (17) for individual sheets or forms, and that the residual side surfaces   (18) form planar triangles or curved   cellar, lying in other planes (19) rising from inside to the outside.   Receiver according to Claim 1, characterized in that the receiving surface (8) is divided, in the conveying direction (3), into surfaces storied (22,23,24).   Receiver according to any one of claims 1 to 3   characterized in that the inclination of the receiving surface   tion (8) as a whole is adjustable.   Receiver according to Claim 3 or Claim 4, characterized in that the stepped surfaces (22, 23, 24) are formed as separate parts and can be   slid one below the other nested.   Receiver according to Claim 5, characterized in that individual staggered sections (25) are liftable.