EP2147801B1 - Binding device - Google Patents

Description

The invention relates to a binding device for binding documents in a deformable channel, according to the preamble of claim 1.

Previously known binding devices have a frame in which two clamping jaws are mounted. The deformable gutter, used either singly or as part of a book cover, is placed on a bed between the jaws for binding the document. For this purpose, the distance between the two jaws to each other before the binding process must be significantly greater than the width of the groove to be deformed. After placing the gutter on the bed, the first jaw is moved so far on the firmly anchored in the frame second jaw until both jaws loosely rest against the gutter. Subsequently, the actual binding process takes place, in which by means of a hand lever, the first jaw is pressurized and is pressed with sufficient force at a short traverse path against the groove to deform them. In the known binding devices is therefore considered to be disadvantageous that two movements for the binding process are necessary: First, the approach of the movable jaw to the gutter, in which the jaw has to travel a relatively long way, without this a significant force would be required. The displacement of the clamping jaw thus takes place, as a rule, with a first hand lever acting on a displacement mechanism. On the other hand, the displacement of the movable jaw for deforming the channel, in which a very short distance is covered and in which a relatively high force is required. This actual binding process is carried out by means of a mechanism that is independent of the displacement mechanism and actuated by a second hand lever.

From the WO 94/04374 A1 a binding device of the type mentioned is known in which a pressure lever with a pressure piece on the first jaw acts to move them to the second, frame-fixed jaw to the plant the gutter and then apply the force to deform the gutter. For this purpose, a gear segment is rotated by means of a hand lever, which is in engagement with a gear connected to the pressure lever gear.

It is therefore an object of the invention to provide a binding device which is easier to handle.

The object is achieved by a binding device with the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims.

The invention is based on the idea to facilitate the handling of the binding device in that both the approach of the first clamping jaw to the groove to be deformed, as well as the deformation of the groove can be performed with a hand movement. The approach of the first jaw to the gutter is achieved via the lever mechanism, while the deformation is achieved by pressurizing the pressure surface by the pressure piece. Both the lever mechanism and the pressure piece are moved by pivoting the hand lever, wherein the pressure piece only comes to rest on the pressure surface when the first jaw already rests against the gutter. For the long travel of the first jaw until it touches the gutter, in which only a very small force must be exerted on the jaw, the lever mechanism is well suited, while the great force necessary to deform the gutter, advantageous by a Cooperation of the rack is applied to the gear segment.

To transfer the force between the hand lever and the rack or the lever mechanism is advantageous in the frame mounted by a movement of the hand lever in the direction of actuation linearly displaceable in the transverse direction pull rod which carries at least one rack and on which the lever mechanism is articulated. In this case, the hand lever expediently on a longer lever arm with a handle and a shorter, hinged to the pull rod lever arm. This represents a first Translation in which a movement of the handle with less force over a long distance in a movement of the drawbar with greater force over a short distance results.

The pressure piece expediently has a cylindrical outer ring which is rotatable about an axis of rotation in the second lever arm of the pressure lever. It is preferred that the pressure lever has a rolling bearing for rotating the outer ring about the axis of rotation. When pressure is applied to the pressure surface, the outer ring rolls off on the pressure surface. As a result, the frictional forces that occur between the pressure piece and the pressure surface are minimized. Would the thrust piece slide over the pressure surface, so the frictional forces in the large forces to be applied could also be very large, which would increase both the wear of the pressure piece, as well as would cause considerable lateral forces that would have to be absorbed by the frame and applied by the operator.

According to an advantageous development, the pressure lever on two gear segments, which are arranged on two mutually parallel plates, and the pressure piece is arranged between the plates. Furthermore, two fixedly interconnected, arranged at the same distance as the plates parallel racks are arranged in the frame. This arrangement has the advantage that the pressure piece is mounted between the gear segments, so that no tilting moments occur when it is pressed against the pressure surface.

The lever mechanism expediently has means which limit the force transmitted by it to the spacing wedge. This avoids forces acting in the lever mechanism which could damage the levers. In this case, the lever mechanism advantageously consists of a plurality of levers, which are advantageously movable relative to each other partially against the restoring force of springs, as described in the embodiment.

Suitably, at least one return spring is arranged between the first jaw and the frame, the restoring force acts counter to the feed direction. By this measure, a reset of the first jaw is effected in a simple manner to its original position, when the hand lever is pivoted back to a binding operation in its initial position. Advantageously, a housing enclosing the frame is provided which has an opening slot for insertion of the channel on the bed. The housing encloses on the one hand the parts which are movable in the frame, on the other hand it offers the possibility of giving the device an appealing design.

Fig. 1

eine Bindevorrichtung in perspektivischer Ansicht;

Fig. 2a, 2b

die Bindevorrichtung gemäß Fig. 1 ohne Gehäuse und ohne Handgriff mit dem Handhebel in seiner Anfangsstellung, perspektivisch von oben sowie in Draufsicht von unten;

Fig. 3a, 3b

die Darstellung der Bindevorrichtung gemäß Fig. 2a, 2b mit dem Handhebel in seiner Zwischenstellung und

Fig. 4a, 4b

die Darstellung der Bindevorrichtung gemäß Fig. 2a, 2b mit dem Handhebel in seiner Endstellung.

In the following the invention will be explained in more detail with reference to an embodiment schematically illustrated in the drawing. Show it:

Fig. 1

a binding device in perspective view;

Fig. 2a, 2b

the binding device according to Fig. 1 without housing and without handle with the hand lever in its initial position, in perspective from above and in plan view from below;

Fig. 3a, 3b

the representation of the binding device according to Fig. 2a . 2 B with the hand lever in its intermediate position and

Fig. 4a, 4b

the representation of the binding device according to Fig. 2a . 2 B with the hand lever in its end position.

In the Fig. 1 The binding device 10 shown serves to bind documents in a deformable groove, which may be a single component or a component of a book cover. The binding device 10 points to its operation a hand lever 12 and is equipped with a housing 14 having an opening slot 16 for insertion of the channel.

As shown in the further figures, the binding device 10 has under its housing 14 a frame 18 made of metal, in which a frame-fixed first pivot axis 20 of the hand lever 12 is mounted limitedly pivotable. In the frame 18, a bed 22 is arranged for laying the gutter, which is located between two jaws 24, 26. A first clamping jaw 24 is mounted in a feed direction 28 on the second jaw 26 to linearly displaceable in the frame 18. Furthermore, in the frame 18, a pressure bar 30 is supported by an end stop 32 in the feed direction 28 to the first jaw 24 to linearly displaceable. Facing the first clamping jaw 24, the pressure strip 30 has a side flank 34 whose distance to the first clamping jaw 24 is steadily reduced in a transverse direction 36 running perpendicular to the feed direction 28. In the transverse direction 36, the side flank 34 runs at an acute angle toward the rear side 38 of the first clamping jaw 24, which extends in the transverse direction 36. Between the first jaw 24 and the pressure bar 30, a spacer wedge 40 is arranged, which rests against the side edge 34 and the back 38. With the spacer wedge 40 two plastic plates 42 are screwed, the first jaw 24 and the pressure bar 30 each overlap above and below a piece, so that the spacer wedge 40 in the transverse direction between the first jaw 24 and the pressure bar 30 is displaceable. A displacement of the spacer wedge 40 in the transverse direction 36 causes a change in distance between the first jaw 34 and the pressure bar 30, so that the latter is pressed against the end stop 32 and the former is moved in the feed direction 28 to the second jaw 26. The movement of the spacer wedge 40 in the transverse direction 36 takes place by movement of the hand lever 12 in an actuating direction, starting from its in Fig. 2a . 2 B shown initial position, with the movement of the hand lever 12 is transmitted by means of a lever mechanism on the spacer wedge 40.

To a second fixed frame pivot axis 44, a pressure lever 46 is pivotally mounted, which has two mutually parallel plates 48. Each of the plates 48 carries on the longer arm of the pressure lever 46, a gear segment 50, while the shorter arm of the pressure lever 46, a pressure piece 52 is disposed between the plates 48. The pressure piece 52 has a cylindrical outer ring 54, which is rotatably supported by means of a rolling bearing about an axis of rotation 56 connecting the plates 48. The pressure piece 52 is used to pressurize one of the first clamping jaw 24 facing away from the pressure surface 58 on the pressure bar 30 and thus the advancement of the pressure bar 30 in the feed direction 28 to transmit a force for deforming the groove on the first jaw 24. For pivoting the pressure lever 46, the gear segments 50 each with a rack 60 in engagement, wherein the rack 60 are fixedly connected to a transversely extending 36 and in the transverse direction 36 linearly displaceable in the frame 18 drawbar 62. The drawbar 62 is hinged to the shorter lever arm 64 of the hand lever 12, while its longer lever arm 66 in the Fig. 1 shown handle 68 carries. The lever mechanism for moving the spacer wedge 40 is articulated on the drawbar 62, wherein their dimensions are matched to the pressure lever 46, that this only comes to rest with its pressure piece 52 on the pressure surface 58 by pivoting about the second pivot axis 44 when the first jaw 24 has been advanced in the feed direction 28 until it touches the gutter. This abutment of the first jaw 24 on the channel is defined by the achievement of an intermediate position of the hand lever 12, wherein in the intermediate position of the hand lever 12, the pressure piece 52 still exerts no force on the pressure surface 58.

The following is particularly with reference to Fig. 2b . 3b . 4b the lever mechanism described in more detail. The lever mechanism has a first lever 70, which is pivotable about a third frame-fixed pivot axis 72, and the first lever arm 74 is connected to the spacer wedge 40. At its second lever arm 76, it is provided with a bolt 78 which is slidably guided in a slot 80 in a second lever 82. The slot 80 extends close to a first end 84 of the second lever 82, while its second end 86 is provided with a bolt 88. The bolt 88 connects the second lever 82 with a pivotable about a fourth frame fixed pivot axis 90 third lever 92. Its first lever arm 94 is pivotally connected to the tie rod 62, while its second lever arm 96 is connected to the second lever 82. The second lever 82 with the third lever 92 connecting pin 88 is slidably guided in a slot 98 in the first lever arm 100 of a fourth lever 102 which is pivotable about a fifth frame fixed pivot axis 104. Between the first lever arm 74 of the first lever 70 and the first lever arm 94 of the third lever 92, a first tension spring 106 is stretched, while between the first lever arm 74 of the first lever 70 and the second lever arm 108 of the fourth lever 102, a second tension spring 110 is stretched , The tension springs 106, 110 urge the first lever arm 74 of the first lever with a traction force having a component in the transverse direction 36, which is transmitted to the spacer key 40, and which is the greater, the more the tension springs 106, 110 are tensioned.

The binding process is described in more detail below. It starts from the in Fig. 2a . 2 B shown state of the binding device 10, in which the hand lever 12 is in its initial position. The pressure piece 52 is located at a distance to the pressure surface 58, the pressure bar 30 is located at its end stop 32 at. Between the frame 18 and the first jaw 24 tensioned return springs 112 hold the first jaw 24 in a position in which it rests against an end stop in the frame 18. The bolt 78 disposed in the first lever 70 abuts the end of the slot 80 located near the first end 84 of the second lever 82. The spacer key 40 is in a position that defines the smallest possible distance between the first jaw 24 and the pressure bar 30. By pivoting the hand lever 12 about the first pivot axis 20 in the direction of actuation hinged to its shorter lever arm 64 drawbar 62 is moved in the transverse direction 36. The third lever 92 is pivoted about the fourth pivot axis 90 and moves the second lever in Fig. 2b upward, so that the end of the slot 80 allows movement of the bolt 78 upwards. The force of the tension springs 106, 110 causes pivoting of the first lever 70 about the third pivot axis 72, so that the spacer wedge 40 is moved in the transverse direction 36 and advances the first jaw 24 in the feed direction 28 to the second jaw 26. The advance of the first clamping jaw 24 is carried out until it rests against a bed placed on the bed 22, record receiving groove. The position then reached by the hand lever 12 is referred to here as an intermediate position.

Simultaneously with the advance of the first jaw 24 in the feed direction 28 of the pressure lever 26 is pivoted by means of the attached to the pull rod 62 racks 60 so that its pressure member 52 of the pressure surface 58 approaches. In the intermediate position of the hand lever 12, the pressure piece 52 is still at a distance to the pressure surface 58 or touches them straight, without exerting a force on them. If the hand lever 12 is moved further in the direction of actuation via the intermediate position, then there is no further advance of the first clamping jaw 24, since this rests against the channel. Rather, the tension springs 106, 110 stretched, but the tensile force is not sufficient to move the spacer wedge 40 further in the transverse direction 36 and to deform the channel. The tension springs 106, 110 thus effect a limitation of the transmitted from the lever mechanism to the spacer wedge 40 Force. At the same time, the pressure piece 52 is further moved by pivoting the pressure lever 46 to the pressure surface 58 until it comes to rest on her. A further pivoting of the hand lever in the actuating direction causes a pressurization of the pressure surface 58 by the pressure piece 52, whereby the pressure bar 30 is advanced in the feed direction 28. The pressure bar 30 acts on the spacer wedge 40, the first jaw 24, which is advanced for deforming the channel in the feed direction. In this case, the outer ring 54 rolls on the pressure surface 58. The feed of the pressure bar 30 takes place until the hand lever 12 its in Fig. 1 and in Fig. 4a has reached the end position shown. If the hand lever 12 subsequently moved back to its initial position, the pressure pad 52 is first lifted from the pressure surface 54, after which the pressure bar 30 is moved back by means of the return springs 114 to its end stop 32. Furthermore, the spacer wedge 40 is moved counter to the transverse direction 36, so that the first jaw 24 is moved by means of the return springs 112 counter to the feed direction 28 until the gutter can be removed from the bed 22. If necessary, so if the groove is not sufficiently deformed, the binding process can be repeated by pivoting the hand lever 12 again in the direction of actuation to its end position.

• Die Erfindung betrifft eine Bindevorrichtung 10 zum Binden von Schriftgut in eine verformbare Rinne mit einem Gestell 18, mit einem um eine gestellfeste erste Schwenkachse 20 in einer Betätigungsrichtung von einer Anfangs- über eine Zwischen- in eine Endstellung verschwenkbaren Handhebel 12, mit zwei Klemmbacken 24, 26 zum Einklemmen und Verformen der Rinne, von denen eine erste Klemmbacke 24 in einer Vorschubrichtung 28 auf die zweite Klemmbacke 26 zu linear verschiebbar im Gestell 18 gelagert ist, mit einem Bett 22 zum Auflegen der Rinne zwischen den Klemmbacken 24, 26, mit einer im Abstand zur ersten Klemmbacke 24 im Gestell 18 von einem Endanschlag 32 in Vorschubrichtung 28 auf die erste Klemmbacke 24 zu linear verschiebbar gelagerten Druckleiste 30, die eine der ersten Klemmbacke 24 zugewandte Seitenflanke 34, deren Abstand zur ersten Klemmbacke 24 sich in einer senkrecht zur Vorschubrichtung 28 verlaufenden Querrichtung 36 stetig verringert, und eine der ersten Klemmbacke 24 abgewandte Druckfläche 58 aufweist, mit einem an der ersten Klemmbacke 24 und der Seitenflanke 34 der Druckleiste 30 anliegenden, durch Bewegung des Handhebels 12 in der Betätigungsrichtung mittels einer Hebelmechanik in Querrichtung 36 beweglichen Abstandkeil 40, wobei die Zwischenstellung des Handhebels 12 durch Erreichen eines der Breite der Rinne entsprechenden Abstands der Klemmbacken 24, 26 definiert ist, und mit einem um eine gestellfeste zweite Schwenkachse 44 verschwenkbaren Druckhebel 46, der an einem ersten Hebelarm mindestens ein Zahnradsegment 50 und am zweiten Hebelarm ein Druckstück 52 zur Kraftbeaufschlagung der Druckfläche 58 aufweist, wobei das mindestens eine Zahnradsegment 50 mit mindestens einer im Gestell 18 gelagerten, mit dem Handhebel 12 verbundenen Zahnstange 60 so in Eingriff steht, dass eine Bewegung des Handhebels 12 in Betätigungsrichtung eine Bewegung des Druckstücks 52 in Richtung zur Druckfläche 58 bewirkt, und wobei das Druckstück 52 so angeordnet ist, dass es bei oder nach Erreichen der Zwischenstellung des Handhebels 12 an der Druckfläche 58 zur Anlage kommt.

In summary, the following should be noted:

• The invention relates to a binding device 10 for binding documents in a deformable channel with a frame 18, with a fixed to a frame fixed first pivot axis 20 in an actuating direction from a beginning via an intermediate in an end position hand lever 12, with two clamping jaws 24, 26 for clamping and deformation of the channel, of which a first jaw 24 is mounted in a feed direction 28 on the second jaw 26 to linearly displaceable in the frame 18, with a bed 22 for placing the gutter between the jaws 24, 26, with a distance to the first jaw 24 in the frame 18 of an end stop 32 in the feed direction 28 to the first jaw 24 to linearly slidably mounted pressure bar 30, the one of the first jaw 24 facing side edge 34, the distance to the first jaw 24 is in a vertical to the feed direction 28 extending transverse direction 36 steadily reduced, and one of the first jaw 24 facing away from the pressure surface 58, with a voltage applied to the first jaw 24 and the side edge 34 of the pressure bar 30, by moving the hand lever 12 in the actuation direction by means of a lever mechanism in the transverse direction 36th movable spacer wedge 40, wherein the intermediate position of the hand lever 12 by reaching a width of the groove corresponding distance of the jaws 24, 26 is defined, and with a fixed to a fixed frame second pivot axis 44 pressure lever 46, the at least one gear segment 50 and at a first lever arm on the second Lever arm has a pressure piece 52 for applying force to the pressure surface 58, wherein the at least one gear segment 50 with at least one mounted in the frame 18, connected to the hand lever 12 rack 60 is engaged so that a movement of the hand lever 12 in the direction of actuation movement of the pressure member 52nd effected in the direction of the pressure surface 58, and wherein the pressure piece 52 is arranged so that it comes into contact with the pressure surface 58 during or after reaching the intermediate position of the hand lever 12.

Claims (15)

1. Binding device to bind documents in a deformable channel having a frame (18), having a manual lever (12) which is able to swivel about a first pivot axis (20), which is fixed in the frame, in a actuation direction from an initial via an intermediate into an end position, having two clamping jaws (24, 26) to clamp and deform the channel, of which a first clamping jaw (24) is mounted to be moveable in a feed direction (28) towards the second clamping jaw (26) in a linear manner in the frame (18), having a bed (22) to support the channel between the clamping jaws (24, 26), wherein the intermediate position of the manual lever (12) is defined by the clamping jaws (24, 26) reaching a distance apart corresponding to the width of the channel, and having a push lever (46) which is able to swivel about a second pivot axis (44), which is fixed in the frame, and which has at least one gear segment (50) on a first lever arm and a pressure piece (52) on the second lever arm, characterised by a pressure strip (30) mounted to be moveable in a linear manner at a distance to the first clamping jaw (24) in the frame (18) from an end stop (32) in the feed direction (28) to the first clamping jaw (24), said pressure strip having a side flank (34) facing towards the first clamping jaw (24), the distance of which to the first clamping jaw (24) is constantly reducing in a transverse direction (36) running perpendicularly to the feed direction (28), and a pressure surface (58) facing away from the first clamping jaw (24); and a spacer wedge (40) which abuts onto the first clamping jaw (24) and the side flank (34) of the pressure strip (30) and which is movable by movement of the manual lever (12) in the actuation direction by means of a lever mechanism in the transverse direction (36), wherein the pressure piece (52) is a pressure piece for the force loading of the pressure surface (58), wherein the at least one gear segment (50) engages with at least one gear rack (60) mounted in the frame (18) and connected to the manual lever (12) such that a movement of the manual lever (12) in the actuation direction causes a movement of the pressure piece (52) in the direction towards the pressure surface (58), and wherein the pressure piece (52) is arranged such that it comes into contact with the pressure surface (58) at or after the manual lever (12) has reached the intermediate position.
2. Binding device according to claim 1, characterised in that a drawbar (62) which is moveable in a linear manner in the transverse direction (36) by movement of the manual lever (12) in the actuation direction is mounted in the frame (18), said drawbar bearing the at least one gear rack (60) and on which the lever mechanism is hinged.
3. Binding device according to claim 2, characterised in that the manual lever (12) has a longer lever arm (66) having a handle (68) and a shorter lever arm (64) which is hinged on the drawbar (62).
4. Binding device according to one of the preceding claims, characterised in that the pressure piece (52) has a cylindrical outer ring (54) which is rotatable about a rotational axis (56) in the second lever arm of the push lever (46).
5. Binding device according to claim 4, characterised in that the push lever (46) has a rolling bearing to rotate the outer ring (54) about the rotational axis (56).
6. Binding device according to one of the preceding claims, characterised in that the push lever (46) has two gear segments (50) which are arranged on two plates (48) which are parallel to each other; the pressure piece (52) is arranged between the plates (48); and two gear racks (60) which are firmly connected to each other and run in parallel with each other at the same distance as the plates (48) are arranged in the frame (18).
7. Binding device according to one of the preceding claims, characterised in that the lever mechanism has means which limit the force transferring from it to the spacer wedge (40).
8. Binding device according to one of the preceding claims, characterised in that the lever mechanism has a first lever (70) which is able to swivel about a third pivot axis (72), which is fixed in the frame, and is connected with its first lever arm (74) to the spacer wedge (40), wherein its first lever arm (74) is loaded with force in the transverse direction (36) by means of at least one spring (106, 110).
9. Binding device according to claim 8, characterised in that the lever mechanism has a second lever (82), which is moveable in the frame (18), having an elongated hole (80) in the vicinity of its first end (84), wherein a bolt (78) which is fixed to the second lever arm (76) of the first lever is guided to be moveable in the elongated hole (80).
10. Binding device according to claim 9, characterised in that the lever mechanism has a third lever (92) which is able to swivel about a fourth pivot axis (90), which is fixed in the frame, the first lever arm (94) of which is connected in articulated manner to the drawbar (62) and the second lever arm (96) of which is connected to the second end (86) of the second lever (82) via a bolt (88) which is mounted rotatably.
11. Binding device according to claim 10, characterised in that a first tension spring (106) is tensioned between the first lever arm (74) of the first lever (70) and the first lever arm (94) of the third lever (92).
12. Binding device according to claim 10 or 11, characterised in that the lever mechanism has a fourth lever (102) which is able to swivel about a fifth pivot axis (104), which is fixed in the frame, said fourth lever having an elongated hole (98) on its first lever arm (100) in which the bolt (88) which connects the second and the third levers (82, 92) is guided to be moveable.
13. Binding device according to claim 12, characterised in that a second tension spring (110) is tensioned between the first lever arm (74) of the first lever (70) and the second lever arm (108) of the fourth lever (102).
14. Binding device according to one of the preceding claims, characterised in that at least one return spring (112) is arranged between the first clamping jaw (24) and the frame (18), the return force of which acts against the feed direction (28).
15. Binding device according to one of the preceding claims, characterised by a housing (14) which surrounds the frame (18) and which has an opening slot (16) to insert the channel onto the bed (22).

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