EP2746060B1 - Insertion machine and method for opening an envelope which is transported along an envelope channel - Google Patents

Description

The invention relates to an inserter and a method for opening an envelope mouth of an envelope transported along an envelope channel.

A generic inserter and a generic opening method reveal, for example, the WO 2011/138447 A1 and the US 4,020,615 , where the envelope at the in the US 4,020,615 shown embodiment is resting during insertion. On the other hand it is from the EP 0 943 458 A1 in a resting envelope, as in non-generic context, known to apply opposing forces on an envelope to open the envelope mouth, but a corresponding suppressor and a corresponding overpressors are arranged stationary with respect to the envelope. In the from the WO 2004/098905 A1 known inserter, the envelope mouth is opened by means of a blowing unit. The US 7,717,418 B2 discloses an inserter in which the envelope mouth is opened by an opening member rotatable about an axis by rotating it about that axis.

The object of the present invention is to provide a generic inserter and a generic method for opening an envelope mouth of an envelope transported along an envelope channel, in which the envelope opening can be reliably opened in a structurally simple manner.

As a solution inserter or opening method with the features of the independent claims vargehlagen, these emanating from the general inventive idea, to convince the envelope during its transport in order to open it reliable. Further advantageous solutions can be found in the subclaims and the following description.

A method for opening a Kurvertmunds a transported along a Kurvertkanals envelope while the envelope is transported, this can be characterized. that the envelope is initially overpressed to open the envelope mouth against a back pressure and then released to open the envelope mouth of the back pressure (step i); and / or that the envelope for opening the envelope mouth is opposite to the envelope on an envelope transport low holding force is suppressed (step ii). Each of the intended steps i and ii allows a structurally simple manner a reliable opening of the envelope mouth, wherein both the step i and the step ii may be provided alone, ie without providing the respective other step.

Thus, the method for opening a Kuvertmunds an transported along a Kurvertkanals envelope while the envelope is transported, characterized in that the envelope to open the Kuvertmunds initially suppressed against a back pressure and then dissolved to open the Kuvertmunds the back pressure.

By initially provided overpressure and the subsequent release of the back pressure, the envelope can pop open, whereby a reliable opening of the envelope can be realized. In particular, the reliable opening of the envelope mouth can be realized in a structurally simple manner, since the overpressures against a back pressure and the release of the back pressure is technically easy to implement. Thus, the back pressure can e.g. be technically realized by a fixedly provided contact surface for building up the back pressure. For overpressing, a stationary element-that is to say a stationary element relative to the moving or transported envelope-can be provided which directs the moving envelope in the direction of the counterpressure or in the direction of the contact surface for building up the counterpressure.

Due to the intended overpressure, a voltage builds up in the envelope or it is introduced by the overpressure in the envelope, a clamping energy, which releases the voltage by jumping the envelope or the introduced clamping energy when solving the back pressure in solving the back pressure kinetic energy of the leaping envelope is transferred.

A method for opening an envelope mouth of an envelope transported along an envelope channel, while the envelope is being transported, may also be distinguished by the fact that the envelope is overpressed for opening the envelope mouth in opposition to a hold-down force which suppresses the envelope to an envelope transport.

By overpressing the envelope against the holddown force that holds the envelope down on the envelope transport, the envelope can be easily and conveniently imposed, along with a reliable opening of the envelope mouth. The overpressures against the low holding down force can be realized in a structurally simple manner, for example, such that by providing a stationary guide element with a Guide surface a portion of the moving envelope from the envelope transport by sliding on the guide surface is removed away and / or spaced from the envelope transport. The subregion of the envelope may, in particular, be an elongate subregion of the envelope which is oriented, for example, parallel to the transport direction or which is oriented, for example, parallel to one of the four rectilinear edges of the generally rectangular envelope.

The overpressing is to be understood as meaning a deformation of the envelope as a result of a pressure or force effect and the associated construction of a counter-pressure, a counter-force or a correspondingly acting hold-down force. The deformation is characterized by a deviating from an unloaded situation cross-sectional shape of a cross section of the envelope, which is perpendicular or parallel to the longitudinal extent of the envelope or perpendicular or parallel to the envelope provided for the transport direction or in a Kuvertebene, wherein the envelope in an unloaded Situation eg flat on a flat surface rests, whereby the Kuvertebene is defined. Thus, in the case of a deformation brought about by the overpressure, the envelope can have a cross-sectional shape with bent regions that are rectilinear or essentially rectilinear in the unloaded situation. This deformation can therefore be present in any direction in the Kuveitebene, and it is certainly constructive and advantageous from the process ago, the deformation respectively parallel to the transport direction or parallel to a longitudinal direction of the envelope or perpendicular thereto and to dispense with oblique deformations The latter is not completely ruled out, as this could possibly make possible a suitable popping up, especially with special types of envelopes.

The hold-down force which holds down the envelope on the envelope transport is preferably a force which acts exclusively on that blanket of the envelope which faces the envelope transport or which has the smallest distance to the envelope.

The force to be applied for the overpressure is opposite to the hold-down force or has force components which are opposite to the hold-down force.

Of course, the above steps i and ii can also be combined in a single process, which is characterized in that the envelope for opening the envelope mouth is first pressed against a counter-pressure and then to open the envelope Kuvertmunds the back pressure is released (step i), and that the envelope for opening the envelope mouth is additionally suppressed against a hold down force on the envelope on a Kuverttransport suppressing force (step ii). By the combination of the two steps, wherein the step i causes the envelope mouth to open by opening the envelope and the step ii opening the envelope mouth by forcing the envelope can be realized by structurally and simply a very reliable opening of the envelope mouth, such that the two effects acting synergistically can realize a very reliable opening of the envelope mouth.

In the case of an envelope with an upper cover and a lower cover, wherein the lower cover is designed to be longer than the upper cover, the counterpressure of the upper cover can be released in the method for opening the envelope mouth. Since the lower ceiling is designed to be longer than the upper ceiling, after releasing the counterpressure of the upper ceiling, a counterpressure which continues to act on the lower ceiling can advantageously continue to hold the envelope after the opening of the envelope mouth.

Preferably, the back pressure is carried out by suppressing. The suppression differs from the overpressure described above in that the force causing the deformation of the envelope is opposite to the overpressing force or opposite to the hold down force but opposite to the overstressing force or in the direction of the holddown force or has force components in the direction of the holddown force , By suppressing the above-described Aufspring-effect of the envelope can be very effectively amplified by solving the suppression, along with a very reliable leaking of the envelope.

The overpressing and / or the counterpressing can preferably take place by a relative movement parallel to a main surface of the envelope. By the intended movement of the over-pressing and / or the back-pressure relative to the envelope, parallel to a major surface of the envelope, the opening method can be easily and practically integrated into an inserting process of an inserter, in which one or more Goods are enveloped or inserted in envelopes moving along the envelope channel.

A method for opening an envelope mouth of an envelope transported along a curve channel, while the envelope is transported along a curve channel, may also be characterized in that the envelope is at a in the same direction as the envelope Envelope channel is moved in relation to the envelope displacing counterguide as well as on a in the same direction as the envelope channel with respect to the envelope displacing overpresser (step i) and / or on a in the same direction as the envelope channel with respect to the envelope displacing, is passed over against the envelope on a Kuverttransport holding down force suppressing force acting (step ii).

It is understood that the two steps i and ii can be carried out separately from one another, so that a method for opening an envelope mouth of an envelope transported along a curve channel, while the envelope is transported along a curve channel, can be characterized in particular by the envelope a counter-guide displacing in the same direction as the envelope channel with respect to the envelope, and a pusher displacing in the same direction as the curve of the curve in relation to the envelope.

By passing on the counter guide, and on the pusher can be built in the envelope, a mechanical tension or the envelope can be provided by passing with a mechanical tension energy, which are converted in the further course of the movement of the envelope into a kinetic energy of the aufspringenden envelope can, for example in that in the further course of the movement of the envelope refrained from a counterguide. By dismantling the built-up or introduced mechanical stress or by converting the introduced clamping energy into the kinetic energy of the resuspending envelope, the envelope mouth can be reliably opened. The reliable opening of the Kuvertmunds can be realized in a structurally simple manner, since this is only a structurally easy to implement counter-guide and a structurally easy to implement overpressors are provided.

To introduce the mechanical stress energy, the counter-guide and the pusher with respect to the respective envelope each comprise a convex curvature in Be-wegungsrichtung of the respective envelope, wherein the convex curvature of the counter guide and the pusher preferably equal or substantially the same.

Furthermore, the process - and exclusively with the provision of step ii - for opening an envelope mouth of an envelope transported along a curve channel while the envelope is transported along an envelope channel, can be characterized in that the envelope is in a direction in the same direction as the envelope channel in terms of the envelope displacing, over against the envelope on a Kuverttransport holding down force suppressor is passed.

Due to the intended overprinting, which acts against a hold down force on the envelope on the envelope transport hold-down force, the envelope can be advantageously imposed, along with a reliable opening of the envelope. The overpressure effecting this advantageous forcing of the envelope can be embodied, in particular, in the form of the overprinting device provided in step i, which displaces or extends in the same direction as the envelope channel with respect to the envelope, the overpressure particularly relating to the above-described embodiment present the respective envelope. may have convex curvature in the direction of movement of the respective envelope.

In particular, the two steps i and ii can also be combined so that a method for opening an envelope mouth of an envelope transported along an envelope channel, while the envelope is being transported along an envelope channel, may be characterized in that the envelope is oriented in the same direction such as the envelope channel displacing in relation to the envelope counterguide as well as on a in the same direction as the Kurvertkanal with respect to the envelope displacing pusher and in a same direction as the envelope channel with respect to the envelope displacing, against the envelope on one Envelope transport low holding force acting over pusher is passed. Due to the intended passage on the counterfeed and the pusher in accordance with step i and on the pusher according to step ii, the advantageous effects associated with both steps, ie on the one hand, the popping of the envelope and, on the other hand, the coining of the envelope can advantageously cooperate with a very good reliable opening of the envelope mouth.

Preferably, the pusher and / or the counter guide can stand still with respect to the envelope channel. In this way, a very reliable opening of the envelope mouth is possible, for which particularly preferably the Überdtücker and the opposite guide to each other stand still.

Particularly preferably, the envelope passes the counter-guide first, whereby advantageously a very reliable opening of the envelope mouth can be realized that the construction of the above-described mechanical stress or the introduction of the tension energy only after a previous guide along the counter-guide, so that the Building the mechanical stress or the introduction of the clamping energy can be advantageously carried out in a reliable guided state of the envelope.

Particularly preferably, the countermeasure is a suppressor or the countermeasure is particularly preferably a suppressor. By the provided suppressor, the effect of the countermeasure can be significantly enhanced, characterized in that by negative pressure, ie by deforming the envelope with a force acting in the direction of the hold-down force of the respective holddown force or by force components in the direction of the hold-down force, the counter-leadership is enhanced.

Preferably, the envelope is held open by means of at least one, preferably synchronously, with the envelope moving, engaging in the envelope filling aid. By keeping open the envelope with the, preferably synchronously, with the envelope, mitbewegenden engaging filling aid, the opening method can be very well and reliably integrated into an inserter or in an inserter in which one or more goods in the along the Envelope channels moving envelope enveloped or introduced. In this case, the filling aid advantageously makes it possible to reliably maintain the open state of the envelope opening opened by the method, in order to introduce the goods or goods into the envelope or to reliably or securely insert the goods into the moving envelope or into the moving envelopes. As a result of the preferably synchronous movement of the filling aid with the envelope, advantageously a very reliable integration into an inserter or in an inserting process can be provided.

The filling aid can engage in the over-pressed envelope in order to realize a reliable hold open the envelope, wherein the filling aid preferably engages in the overpressed envelope without touching the Kuettdecke facing away from the filler, along with a substantial increase in reliability when engaging the filling aid in the envelope ,

Under an overmolded envelope is - see also - above. - To be understood by an appropriate pressure or force envelope deformed. To engage the Füllliilfe is or the envelope was deformed by the overpressure, in such a way that the Kuvertmund is open. The force to be applied for the overpressure is preferably opposite to the hold-down force or has force components which are opposite to the hold-down force.

An inserter for inserting one or more items into an envelope moving along an envelope channel, the inserter having means for opening and for In the absence of a moving envelope, it may be distinguished by the fact that the opening means comprise at least one stationary presser and a counter-guide which acts in a fixed manner against the presser, preferably as a stationary suppressor, and / or a hold-down means moving with the envelope.

As can also be seen from the above explanations, a reliable opening of the envelope mouth can be realized in a structurally simple manner by means of an opening means which comprises at least one stationary overpressure and a stationary counter-guide acting against the overpressure.

In general, any device which is adapted to press the moving envelope against the counterguide can be used as the overpressure, along with an overpressing of the envelope, which is characterized in that the envelope deforms, the deformation being caused by one of a non-loaded situation of the envelope deviating cross-sectional shape of a cross section of the envelope is characterized, which is perpendicular or parallel to the longitudinal extent of the envelope and parallel or perpendicular to the direction provided for the envelope transport direction.

Quite generally, any device which is set up to realize a deformation of the envelope by the action of a force or by the action of force components can also be used for the suppressor, this force or force components, in contrast to that required for the overpressing Force is oriented opposite to this.

In particular, the pusher may protrude into the envelope channel and include a guide surface, wherein a portion of the moving envelope is removed from the envelope transport by sliding on the guide surface and / or spaced from the envelope transport. In particular, the routing or spacing can be realized or implemented, for example, advantageously via a guide surface running wedge-shaped in cross section. Particularly advantageously, a motion component directed towards the counterguide can be impressed on the envelope when sliding over this guide surface, so as to ultimately realize the overpressing or the overpressing of the envelope. The subregion of the envelope may, in particular, be an elongate subregion of the envelope which is oriented, for example, parallel to the transport direction or which is oriented, for example, parallel to one of the four rectilinear edges of the generally rectangular envelope.

Also, the counter-guide - which is preferably designed as a stationary suppressor or which preferably comprises a fixed negative pressure - may have a guide surface which projects into the envelope channel. The fact that the counter-guide, preferably designed as a stationary suppressor or includes such a stationary suppressor, has the advantage that the effect of the back pressure is amplified by the suppression possible with the suppressor of the envelope, along with a very effective or reliable popping the envelope for reliable or reliable opening of the envelope mouth.

The reliable opening of the envelope mouth, which is possible in particular in a structurally simple manner by the stationary overpressor and the counter-acting counteracting it, can be realized, in particular, without provision of the downholder running along with the envelope transport. Namely, by the stationary overpressure and acting against this counter-guide already set out above mechanical stress or tension energy in the envelope, which can be implemented by subsequent failure of the countertransference in a kinetic energy of the springing envelope.

However, the inserter or the stationary suppressor can also be dispensed with in the inserter, so that reliable opening of the envelope opening can be realized in a structurally simple manner only by providing the overpressor and the downholder moving with the envelope transport by the pusher the envelope for opening the envelope mouth by forcing against a low force which holds down the envelope on the envelope transport, which is provided by the hold-down for holding down the envelope on the Kuverttrunsport is suppressed.

Of course, the above-described advantageous effects-that is, the popping of the envelope and the pressing of the envelope-can advantageously be combined in a synergistic manner, in such a way that the stationary pusher, against this counter-acting and also with the envelope transport down-hold are provided in the inserter.

The above-described advantageous effects - ie the popping and the imposition of the envelope - with an appropriate design ultimately be a consequence of the fact that the pusher and / or the counter-guide or the suppressor the Distorted perpendicular to the trajectory of the envelope through the Kurvert channel selected cross-section of the envelope channel.

Preferably, the overpressure is arranged in the direction of movement of the respective envelope behind the counterguide or behind the suppressor, so that therefore the envelope passes the countermeasure first. This is associated with the advantage already set out above, that the construction of the mechanical tension or the introduction of the tension energy only after a previous guide along the counter-guide, so that the construction of the mechanical stress or the introduction of the clamping energy advantageously in a reliable guided condition of the envelope can be done.

In a preferred embodiment, the overpressure protrudes beyond the path of the hold-down and preferably over a pressed-down cover of the respective envelope in the direction of another envelope cover of the respective envelope. By projecting the overpressure over the path of the hold-down, preferably over the held down Kuvertdecke the respective envelope in the direction of one or the other Kuvertdecke, a very pronounced bridging of the envelope can advantageously be realized, along with a very reliable opening of the envelope mouth.

Preferably, at least one of the opening means, that is, the pusher, suppressor, counter guide and hold-down, is not formed over the entire width of the envelope channel. It should be emphasized at this point that the length of the envelope channel are defined parallel to the direction of passage of the envelopes through the inserter, the width of the Kurvertkanals perpendicular thereto and parallel to the drawing of the envelope and the height of the envelope channel perpendicular to the width and the length of the envelope channel. The cross-section of the envelope channel is defined as the cross section spanned by the width and the height.

An inserter for inserting one or more goods into an envelope moving along an envelope channel, wherein the inserter comprises means for opening and keeping open a moving envelope, may also be characterized in that the opening means is a distortion of the perpendicular to the trajectory of the envelope through the envelope channel selected cross-section of the envelope channel.

Due to the intended distortion of this cross-section, a reliable opening of the envelope mouth can be realized in a practical and simple manner, in particular also in a structurally simple manner, the reliable opening of the envelope mouth in particular can be realized that for the distortion of the cross section is partially raised and partially lowered.

Another inserter for inserting one or more items into an envelope moving along an envelope channel, wherein the inserter comprises means for opening and keeping open a moving envelope, may also be characterized in that the opening means are one with respect to the respective envelope Include convex curvature of the envelope channel in the direction of movement of the respective envelope.

Due to the intended convex curvature of the envelope channel in the direction of movement of the respective envelope, a mechanical tension can be introduced into it by moving in the envelope channel or a mechanical stress can be built up in it, with which a reliable opening of the envelope mouth after passing through the convex curvature by jumping Envelopes is possible. In particular, the convex curvature of the envelope channel can advantageously be technically realized in a structurally simple manner.

Preferably, the opening means comprise a counter guide arranged on the outside of the convex curvature, which opens in the direction away from the envelope channel, preferably ends there, shortly before an opening region. By the intended ends of the counter-guide in the opening area or by opening the counter-guide just before the opening area, the envelope - after this was provided by the intended convex curvature with the necessary to open the envelope mechanical tension or clamping energy - advantageous shortly before the opening area or when the opening area is reached, it will pop open reliably to open the envelope mouth. The opening area of the inserter is the area in which the envelope of the envelope or the opening of the envelope mouth of the envelope is provided in the inserter.

In a preferred embodiment, the inserter comprises an envelope guide, which moves filling aids with the envelopes transported by the envelope transport, and a goods transport for feeding the goods or goods to the envelopes and wherein the opening means are arranged in a pivoting region, in which the filling aid in the respective Envelopes.

All provided in this preferred embodiment facilities - ie the Kuvertführung, which moves filling aids with the transported from the Kuverttransport envelopes, the Guttransport for supplying the goods or goods to the envelopes and the opening means in the Einschwenkbereich, in which the filling aid in the respective envelope einschwenkt - allow in their interaction advantageously a reliable inserting the good or the goods in the envelope.

In practice, it has proven useful when the envelope is opened with respect to its transport direction by the inserter against the transport direction, so the envelope mouth is arranged opposite to the transport direction when opening. In this way, the aufspringenden effects, which are caused by the overpressing and the counter-pressure or the hold-down force, achieve particularly advantageous, although you would initially be inclined to expect this in a reversal of motion with similar advantages. In practice, however, it has been found that a corresponding opening of the envelope mouth can be realized particularly effectively if it is arranged counter to the transport direction during overpressing.

Preferably, the envelope is then filled from the rear, so that no reversal of the direction of movement or a new orientation of the envelope with respect to the direction of movement needs to take place.

It is also advantageous, in the case of an envelope with an upper cover and a lower cover, in which the lower cover is designed to be longer than the upper cover, to let the overpressor on the lower cover act on the envelope or to overpress the envelope from the lower cover, so that the countermeasure or the oppressor from the top cover or so that the hold-down force with a direction from the top to the bottom ceiling act on the envelope. This supports a reliable jump on the envelope. In particular, it is advantageous if, in addition, the gravitation is used by the longer lower ceiling during opening is arranged below, so that the gravitation in the area in which the envelope is to be opened, parallel to at least one component of the hold-down force or a direction of action of the counter-guide rectified and directed against at least one component of the effective direction of the suppressor.

Preferably, the envelope transport comprises a suction belt, which serves as a hold-down. With a suction belt serving as a hold-down device, a very reliable transport of the envelope can be realized in a simple and practical manner.

It is understood that the features of the solutions described above or in the claims can optionally also be combined in order to implement the advantages in a cumulative manner.

Thus, the opening means may comprise an air nozzle, which opens at least supporting the Kuvertmund. Preferably, the air nozzle in the pusher, in the opposite direction or in the suppression or acting in the follower down or through the follower down, be provided, since these modules come in any case very close to the respective envelope in contact, and this especially in the areas in which the respective envelope is to be opened. Depending on the specific implementation, a constant air flow or a pulsating air flow can be conducted through the air nozzle.

Figur 1

eine ausgeschnittene schematische Seitenansicht des Öffnungsbereichs eines Kuvertierers bei zu Unterdrückem laufendem Kuvert;

Figur 2

die Anordnung nach Figur 1, wenn das Kuvert jeden Unterdrücker fast passiert hat und zu den Überdrückem gelangt ist, bevor die Oberdecke des Kuverts jeden Unterdrücker passiert hat, wobei im Bereich jedes Überdrückers eine konvexe Krümmung des Kuvertkanals vorliegt und sich Überdrücker und Unterdrücker nicht über die gesamte Bieite (senkrecht zur Zeichenebene) des Kuvertkanals erstrecken, so dass dort der Kurvertkanal im Querschnitt verzerrt ist;

Figur 3

die Anordnung nach Figuren 1 und 2, wenn die Oberdecke jeden Unterdrücker passiert hat und der Kuvertmund gerade aufgesprungen ist;

Figur 4

die Anordnung nach Figuren 1 bis 3, wenn das Kuvert wieder entspannt auf dem Saugband als Kuverttransport liegt;

Figur 5

eine ausgeschnittene schematische Seitenansicht des Öffnungsbereichs eines weiteren Kuvertierers, bei welchem in jedem Unterdrücker eine ein Öffnen des Kuverts unterstützende Luftdüse angeordnet ist, wobei sich ein Kuvert in der Figur 3 entsprechenden Position befindet;

Figur 6

die Anordnung nach Figur 5, wobei in das Kuvert nach Figur 5 eine Füllhilfe eingegriffen hat, welche das Kuvert offenhält, während ein weiteres Kuvert durch den Kurvertkanal zugeführt wird;

Figur 7

eine ausgeschnittene schematische Seitenansicht des Öffnungsbereichs eines weiteren Kuvertierers, bei welchem in jedem Unterdrücker eine ein Öffnen des Kuverts unterstützende Luftdüse angeordnet sowie eine weitere hierzu dienende Luftdüse vorgesehen ist, wobei sich ein Kuvert in der Figuren 3 und 5 entsprechenden Position befindet;

Figur 8

eine ausgeschnittene schematische Seitenansicht des Öffnungsbereichs eines weiteren Kuvertierers mit einem Saugband als Kuverttransport und als Niederhalter sowie mit einer konvexen Krümmung als den Kuvertkanal im Querschnitt nicht verzerrendes Öffnungsmittel und einer Gegenführung, die kurz vor einem Öffnungsbereich bzw. kurz vor einem Bereich, in welchem eine Füllhilfe in das jeweilige Kuvert eingreift, endet, bei unter der Gegenführung befindlichem Kuvert;

Figur 9

die Anordnung nach Figur 8 kurz bevor die Oberdecke des Kuverts die Gegenführung verlässt;

Figur 10

die Anordnung nach Figuren 8 und 9, wobei die Oberdecke des Kuverts die Gegenführung verlassen hat und der Kuvertmund aufgesprungen ist, so dass die Füllhilfe unter die Oberdecke greifen kann;

Figur 11

die Anordnung nach Figuren 8 bis 10, nach dem die Unterdecke des Kuverts die Gegenführung ebenfalls verlassen hat und die Füllhilfe das Kuvert offen hält;

Figur 12

eine schematische Schnittdarstellung der Anordnung nach Figur 3 entlang der Schnittlinie I (vgl. Fig. 3);

Figur 13

eine dreidimensionale Darstellung eines Öffnungsbereichs eines Kuvertierers, der eine Anordnung nach Figur 5 ohne Kuvert umfasst;

Figur 14

eine schematische Schnittdarstellung des Öffnungsbereichs nach Figur 13 entlang der Schnittlinie II (vgl. Fig. 13);

Figur 15

eine schematische Schnittdarstellung des Öffnungsbereichs nach Figur 13 entlang der Schnittlinie III (vgl. Fig. 13); und

Figur 16

eine schematische Schnittdarstellung des Öffnungsbereichs nach Figur 13 entlang der Schnittlinie IV (vgl. Fig. 13)

Further advantages, objects and features of the present invention will be explained with reference to the following description of exemplary embodiments, which are shown in particular in the appended drawing. In the drawing show:

FIG. 1

a cut-away schematic side view of the opening portion of an inserter in oppressive running envelope;

FIG. 2

the arrangement after FIG. 1 when the envelope has almost passed through each oppressor and reaches the overprints before the top of the envelope has passed each suppressor, with a convex curvature of the envelope channel in the area of each pusher and pushers and suppressors not extending all the way (perpendicular to the envelope) Plane) of the envelope channel, so that there the Kurvert channel is distorted in cross section;

FIG. 3

the arrangement after Figures 1 and 2 when the top has passed through every oppressor and the envelope has just jumped open;

FIG. 4

the arrangement after FIGS. 1 to 3 when the envelope is relaxed again on the suction belt as an envelope transport;

FIG. 5

a cut-out schematic side view of the opening portion of another inserter, wherein in each suppressor an opening of the envelope supporting air nozzle is arranged, wherein an envelope in the FIG. 3 corresponding position;

FIG. 6

the arrangement after FIG. 5 , taking in the envelope after FIG. 5 a filling aid has intervened, which keeps open the envelope, while another envelope is fed through the Kurvert channel;

FIG. 7

a cut-out schematic side view of the opening portion of another inserter, wherein arranged in each suppressor an opening of the envelope supporting air nozzle and another serving for this purpose Air nozzle is provided, with an envelope in the Figures 3 and 5 corresponding position;

FIG. 8

a cut-out schematic side view of the opening portion of another inserter with a suction belt as Kuverttransport and as hold-down and with a convex curvature as the envelope channel in cross-section not distorting opening means and a counter-guide, just before an opening area or shortly before a region in which a filling aid engages in the respective envelope ends, with under the counter-guide envelope;

FIG. 9

the arrangement after FIG. 8 just before the top cover of the envelope leaves the counterguide;

FIG. 10

the arrangement after FIGS. 8 and 9 in which the top cover of the envelope has left the counterguide and the envelope mouth has jumped open so that the filling aid can reach under the top cover;

FIG. 11

the arrangement after FIGS. 8 to 10 after the blanket of the envelope has also left the counterguide and the filling aid keeps the envelope open;

FIG. 12

a schematic sectional view of the arrangement according to FIG. 3 along the section line I (see. Fig. 3 );

FIG. 13

a three-dimensional representation of an opening portion of an inserter, the arrangement according to FIG. 5 includes without envelope;

FIG. 14

a schematic sectional view of the opening area after FIG. 13 along the section line II (see. Fig. 13 );

FIG. 15

a schematic sectional view of the opening area after FIG. 13 along the section line III (cf. Fig. 13 ); and

FIG. 16

a schematic sectional view of the opening area after FIG. 13 along section line IV (cf. Fig. 13 )

The inserter 1 after FIG. 1 for inserting one or more goods into an envelope 2 moving along an envelope channel 81 comprises opening means 3 for opening a moving envelope 2 and means for keeping the moving envelope 2 open. The means for keeping the moving envelope 2 open are for the sake of simplicity Representation not in all sectional views - and not in the Fig. 1 - Schematically shown, but is in all inserters 1 after the FIGS. 1 to 16 in each case a means for keeping open in the form of a filling aid 7 according to Fig. 5 intended.

The opening means 3 comprise two stationary overpressors 31, of which in the sectional view according to FIGS. 1 to 12 only one is shown. The two Überdtücker 31 are arranged successively in the width direction of the Kurvertkanals 81.

Furthermore, the opening means 3 comprise two counter-guides 32 designed as stationary suppressors 33, wherein one counter-guide 32 in each case acts or can act against a respective over-presser 31. For each one of the stationary presser 31 so a subdracker 33 is provided in each case, which serves as a counter-guide 32 which is stationary relative to the respective overpressor 31.

As can be seen, the overpushers 31 and the counter-guides 32 and suppressors 33 do not extend over the entire width of the envelope channel 81, which is thus distorted by the pushers 31 and the counter-guides 32 and suppressor 33, respectively.

The two pushers 31 and the two suppressors 33 form a distortion 34 (see. Fig. 1 ) of the perpendicular to the movement path of the envelope 2 through the envelope channel 81 selected cross section of the Kurvertkanals 81st

In the sectional views according to FIGS. 1 to 12 only one of the two suppressors 33 is shown schematically. Also, the two suppressors 33 are arranged consecutively in the width direction of the envelope passage 81.

Furthermore, the inserter 1 comprises an envelope transport 6 with a suction belt 61, which serves as a hold-down 60.

The envelope 2 or each envelope 2 has an upper cover 21 and a lower cover 22, the lower cover 22 being longer than the upper cover 21.

Each overpressor 31 (compare in particular also FIG. 12 ) protrudes beyond the path of the hold-down 60 and over the suppressed ceiling 22 of the respective envelope 2 in the direction of the top cover 21 of the respective envelope 2 addition.

The overpressing is to be understood as meaning a deformation of the envelope 2 as a result of a pressure or force effect and the concomitant structure of the counter-pressure. The deformation is characterized by a deviating from an unloaded situation cross-sectional shape of a cross section of the envelope 2, which is perpendicular or parallel to the extension of the envelope 2 or in a Kuvertebene, which is formed by the corresponding unloaded envelope 2, and not only in parallel (see eg FIG. 2 ) provided for the envelope 2 Transport direction but also vertically (see. FIG. 12 ) to the transport direction.

As immediately apparent, the envelope 2 is transported in a transport direction such that its envelope mouth lies behind, or that the envelope 2 is open towards the rear and closed towards the front. This results in a particularly advantageous Aufapring effect.

Here, the lower ceiling of the envelope 2 is formed longer than the top cover and includes a tab in a known manner. The pusher 31 acts from the lower ceiling on the envelope 2, while the counter-guide 32 and the negative pressure 33 but also the hold-down 60 each act on the envelope 2 with a direction of action, which points from the upper ceiling to the lower ceiling. This also supports the opening of the envelope 2.

Supporting points during the opening, the lower ceiling down, so that the gravitational acts on the lower ceiling in addition to the hold-60 and the counter-guide 32 and the suppressor 33 against the direction of action of the over-printer 31 with a force.

The inserter 1 after the FIGS. 5 and 6 differs from the inserter 1 after the FIGS. 1 to 4 in that in this in each suppressor 33 an opening of the envelope 1 supporting air nozzle 38 is arranged.

The inserter 1 after FIG. 7 is different from that FIGS. 5 and 6 in that here a further air nozzle 39 is provided which assists in opening the envelope 1.

In a method of opening an envelope mouth 23 of an envelope 2 conveyed along the envelope channel 81 using the inserter 1 according to FIGS FIGS. 1 to 4 the opening of the envelope mouth occurs. 23 while the envelope 2 is transported by means of the envelope transport 6.

In the method, the envelope 2 for opening the envelope mouth 23 is initially overruled against a counter-pressure according to a step i (cf. FIG. 2 ) and then released to open the envelope mouth 23, the back pressure, whereby the envelope 1 springs open (see FIG. 3 ). By blowing air through the air nozzle 38 and / or the air nozzle 39 (see. Fig. 5 to 7 ) in the envelope 2, the opening of the same when using the inserter 1 according to the FIGS. 5 and 7 favorably supported.

The backpressing takes place by means of the suppressor 33 by suppressing, wherein each of the two suppressors 33 suppresses an elongated portion or strip region of the envelope 2 when moving by means of the envelope transport 6 extending parallel to the transport direction or parallel to an edge of the envelope 2.

The release of the back pressure - which is constructed by the envelope 2 is pressed by the pusher 31 against the suppressor 33 and against the counter guide 32 - takes place in that in the further course of the movement of the envelope 2, the provision or the building of the Gegenrucks by pressing the top cover 21 to the counter guide 32 and the suppressor 33 is omitted by means of the overpressure 31, by limiting the extent of the counter-guide, 32 and the suppressor 33 in the direction of movement of the envelope. 2

Synergistically with the described opening of the envelope mouth 23 by jumping on the envelope 2, an opening of the envelope mouth 23 is also provided by forcing the envelope 2. The forcing of the envelope 2 is effected in that, according to a step ii, the envelope 2 is suppressed by each of the two overpressors 31 against a holding force which suppresses the envelope 2 on the envelope transport 6.

Viewed from the reference system of the envelope 1, the overpressing and the counterpressing take place by a relative movement parallel to a main surface of the envelope 2.

In addition to the above steps i and ii for opening the envelope mouth, each envelope 2 is moved by means of a filling aid 7 which moves in synchrony with the envelope 2 and engages in the envelope 2 (see in particular FIG FIG. 6 ) kept open. The filling aid 7 (see. FIG. 6 ) intervenes in the overpressed envelope 2 in such a way that it does not touch the lower cover 22 facing away from the filling aid 7.

At the inserter 1 after FIG. 8 The opening means comprise a convex curvature 35 of the envelope channel 81 relative to the respective envelope 2 in the direction of movement of the respective envelope 2.

Furthermore, the opening means 3 comprise a counter-guide 32 arranged on the outside of the convex curvature 35, which terminates in an opening region 82 or which extends only up to this opening region 82. The opening area 82 of the inserter 1 is the area in which the opening of the envelope 2 or the opening of the envelope mouth 23 of the envelope 2 is provided in the inserter 1.

In a method of opening an envelope mouth 23 of an envelope 2 conveyed along an envelope channel 81 while the envelope 2 is being transported along the envelope channel 81, the envelope 1 is retarded using the envelope 1 FIG. 8 the envelope 2 at the in the same direction as the envelope channel 81 with respect to the envelope 2 displacing counter guide 32 and at a in the same direction as the envelope channel 81 with respect to the envelope 1 displacing overpresser 31 passes, wherein the pusher 31 in shape a curved portion of the envelope channel 81 is formed.

Due to the intended convex curvature 35, a mechanical stress is built up by passing the counter guide 32 and the pusher 31 in the respective envelope 2, or a tension energy is introduced which, when the top cover 21 of the envelope 2 leaves the counter guide 32, discharges respectively . is converted into a kinetic energy of the aufspringenden envelope 2 (see FIGS. 9 and 10 ).

After the lower cover 22 of the envelope 2 has also left the counter guide 32, the envelope 2 is kept open using the filling aid 7. (see FIG. 11 ), wherein for keeping open the envelope 2, the filling aids 7 after the opening of the envelope. 2 (compare FIG. 10 ) engages under the top cover 21 without touching the ceiling 22.

Also, the inserter 1 according to the FIGS. 13 to 16 has the two stationary pushers 31 and the two counter-guides 32 which act in a fixed manner against the pusher 31 in the form of fixed negative pressures 33, wherein in each case a suppressor 33 is provided for counteracting a respective overdresser 31. The overpressors 31 and suppressors 33 are each arranged successively in the width direction of the envelope channel 81 (compare in particular to this FIG. 13 ).

The filling aid 7 is provided on an envelope guide 70 (see adjacent thereto FIGS. 5 and 6 especially FIG. 13 ). The filling aid 7 (see FIG. 13 ) is fork-shaped, in order to effectively and reliably in the respective envelope (in the Fig. 13 to 16 not illustrated). The elongated oppressors 33 and overpressors 31 (see also FIGS. 14 to 16 ) allow sufficient for a reliable opening of the envelope mouth suppression or overpressing of the respective envelope by overpressing the envelope on each strip-shaped partial surfaces of the envelope, which extend in the transport direction of the envelope or in a direction parallel to an edge of the respective envelope.

The envelope guide 70 (cf. FIG. 13 ) is adapted to the filling aid 7 synchronously with that of the Kuverttransports (in FIG. 13 not illustrated in detail) conveyed envelopes with move.

A provided above the suppressor 33 and below the envelope guide 70 Guttransport (in FIG. 13 not shown in detail) is used to supply the goods or goods to the envelopes, so in particular the supply of paper pages to be inverted in the envelope.

The overpressors 31 and suppressor 33 are arranged in a Einschwenkbereich 84, in which the filling aid 7 pivots into the respective envelope.

Like that FIGS. 15 and 16 Removable, also the suppressor 31 an air nozzle 38, which can be used in addition to opening the respective envelope 2 or used.

It is understood that - depending on the specific application - in each case through the air nozzle 38, a constant air flow or a pulsating, preferably clocked with the envelopes 2, can be passed to the envelopes 2. The same applies to the air nozzle 39. [LIST OF REFERENCE NUMBERS 1 inserter 34 distortion 2 envelope 35 convex curvature 3 opening means 38 air nozzle 6 envelope transport 39 air nozzle 7 filling aid 60 Stripper plate 21 upper ceiling 61 suction belt 22 under Blanket 70 envelope track 23 envelope mouth 81 envelope channel 31 Activation of the lever 82 opening area 32 counter-guide 84 Einschwenkbereich 33 oppressor

Claims (21)

1. A method for opening an envelope throat (23) of an envelope (2) being transported along an envelope channel (81) while the envelope (2) is transported along the envelope channel (81), wherein the envelope (2) is transported past a counterstay (32) being displaced in the same direction as the envelope channel (81) referred to the envelope (2), as well as an over-pressing element (31) being displaced in the same direction as the envelope channel (81) referred to the envelope (2), wherein said over-pressing element protrudes into the envelope channel (81) and comprises a guide surface, and wherein a section of the moving envelope (2) is spaced apart from an envelope transport (6) and/or moved away therefrom by sliding on the guide surface, characterized in that the over-pressing element (31) distorts the chosen cross section of the envelope channel (81) perpendicular to the moving path of the envelope (2) through the envelope channel (81).
2. The opening method according to claim 1, characterized in that the over-pressing element (31) and/or the counterstay (32) are stationary with respect to the envelope channel, wherein the over-pressing element (31) and the counterstay (32) particularly are stationary relative to one another.
3. The opening method according to claim 1 or 2, characterized in that the envelope (2) first passes the counterstay (32).
4. The opening method according to one of claims 1 to 3, characterized in that the counterstay (32) is a depressor(33).
5. The opening method according to one of claims 1 to 4, characterized in that, in order to open the envelope throat (23), the envelope (2) is initially over-pressed against a counter-pressure and the counterpressure is then released in order to open the envelope throat (23).
6. A method for opening an envelope throat (23) of an envelope (2) being transported along an envelope channel (81) while the envelope (2) is transported along the envelope channel (81), characterized in that the envelope (2) is transported past an over-pressing element (31) being displaced in the same direction as the envelope channel (81) referred to the envelope (2), wherein said over-pressing element acts against a hold-down force that holds the envelope (2) down on an envelope transport (6), protrudes into the envelope channel (81) and comprises a guide surface, wherein a section of the moving envelope (2) is spaced apart from an envelope transport (6) and/or moved away therefrom by sliding on the guide surface, and wherein the over-pressing element (31) distorts the chosen cross section of the envelope channel (81) perpendicular to the moving path of the envelope (2) through the envelope channel (81).
7. The opening method according to claim 6, characterized in that the envelope (2) is over-pressed against the hold-down force that holds the envelope (2) down on the envelope transport (6) in order to open the envelope throat (23).
8. The opening method according to claim 5 or 7, characterized in that the envelope (2) features an upper cover (21) and a lower cover (22), wherein the lower cover (22) is realized longer than the upper cover (21) and the counterpressure of the upper cover (21) is released in order to open the envelope throat (23) .
9. The opening method according to claim 5, 7 or 8, characterized in that the counter-pressing is realized by means of a depression and/or the over-pressing and/or the counter-pressing are realized by means of a relative movement parallel to a main surface of the envelope.
10. The opening method according to one of claims 1 to 9, characterized in that the envelope throat (23) of the envelope (2) is arranged opposite to the transport direction during the opening process and/or that the envelope (2) is filled from the rear without reversing the moving direction or without realigning the envelope (2) with the moving direction.
11. An inserter (1) for inserting one or more items into an envelope (2) moving along an envelope channel (81), wherein the inserter (1) comprises means for opening and for holding open the moving envelope (2), characterized in that the opening means (3) comprise at least one stationary over-pressing element (31), as well as a stationary counterstay (32) acting against the over-pressing element (31), wherein the over-pressing element (31) and/or the counterstay (32) distort the chosen cross section of the envelope channel (81) perpendicular to the moving path of the envelope (2) through the envelope channel (81).
12. The inserter (1) according to claim 11, characterized in that the counterstay (32) is a stationary depressor (33) that preferably distorts the chosen cross section of the envelope channel (81) perpendicular to the moving direction of the envelope (2) through the envelope channel (81).
13. An inserter (1) for inserting one or more items into an envelope (2) moving along an envelope channel (81), wherein the inserter (1) comprises means for opening and for holding open the moving envelope (2), characterized in that the opening means (3) comprise at least one stationary over-pressing element (31), as well as a hold-down element (60) that moves with the envelope transport, wherein the over-pressing element (31) distorts the chosen cross section of the envelope channel (81) perpendicular to the moving path of the envelope (2) through the envelope channel (81).
14. The inserter (1) according to one of claims 11 to 13, characterized in that the over-pressing element (31) and/or the counterstay (32) or depressor (33) distort the chosen cross section of the envelope channel (81) perpendicular to the moving path of the envelope (2) through the envelope channel (81) by being partially raised and partially lowered.
15. The inserter (1) according to one of claims 11 to 14, characterized in that the over-pressing element (31) is respectively arranged behind the counterstay (32) or behind the depressor (33) referred to the moving direction of the respective envelope (2).
16. The inserter (1) according to one of claims 11 to 15, characterized in that the opening means (3) comprise a convex curvature (35) of the envelope channel (81) referred to the respective envelope (2) in the moving direction of the respective envelope (2).
17. The inserter (1) according to claim 16, characterized in that the opening means (3) comprise a counterstay (32) that is arranged on the outer side of the convex curvature and opens in the direction away from the envelope channel (81) a short distance in front of an opening region, wherein the counterstay preferably ends this location.
18. The inserter (1) according to one of claims 11 to 17, characterized in that the inserter (1) comprises an envelope guide (70), which moves filling aids (7) together with the envelope (2) transported by the envelope transport (6), as well as an item transport for feeding the item or the items to the envelope (2), and in that the opening means (3) are arranged in a pivoting region, in which the filling aid (7) pivots into the respective envelope (2).
19. The inserter (1) according to one of claims 11 to 18, characterized in that the envelope transport (6) comprises a suction belt (61) that serves as hold-down element (60).
20. The inserter (1) according to one of claims 11 to 19, characterized in that the opening means (3) comprise at least one air nozzle (38), preferably in the over-pressing element (31), in the counterstay (32) or in the depressor (33) and/or in the moving hold-down element (60).
21. The inserter (1) according to one of claims 11 to 20, characterized in that the envelope (2) is, referred to a transport direction through the inserter (1), opened opposite to the transport direction and/or in that the envelope (2) is filled from the rear without reversing the moving direction or without realigning the envelope (2) with the moving direction.

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