EP0727327B1 - Binding device - Google Patents

Description

The invention relates to a binding device according to the Preamble of claim 1.

Such a binding device is known from EP-A-0 593 395 known. It is integrated in a device, which is also a Punching device for punching sheets containing after punching can be tied with a binding spine, which is elastically bendable by the binding device has annular fingers. The ring-shaped fingers are on one end with a back part of the spine connected and at a distance in the longitudinal direction of the truss arranged from each other. This distance corresponds to that Hole spacing of the perforated sheets. The binding device contains a first comb-like expansion body with in Longitudinal trimmed hook on which the ring-shaped fingers are attachable, and a comb-like second expansion body with retaining projections, which between the fingers of the back of the band protrude. A swivel lever is over a shaft with a gear, one with the gear in Meshing rack and articulated lever mechanisms connected to the first expansion body to it in a rectilinear movement relative to the second expansion body move and thereby the ring-like fingers of the spine bend so that the free finger ends into the holes of the Sheets of sheets can be introduced. The wave of Swivel lever is provided with a brake through which the fingers of the back of the band held open and so that both hands are free to attach the Pile of sheets on the open fingers of the spine. A binding device of this type is also known from DE-A-39 19 811 known.

Usual bindings show one in Binderback longitudinal back part with Fingers on which on one side of the back part with Are spaced from each other and perpendicular to Stretch the length of the truss away from the back and each form a loop, which through holes of the binding sheets can be passed. Here are the Back part and fingers together in one piece elastic body made of plastic. The finger ends extend at least as close to the back part, that the leaves are not accidentally on them can slip out.

The loop-shaped fingers are used for binding spread a binding device until the originally partially or loop-shaped fingers are very straight and the sheets to be bound by the Holes in the leaves can be pushed onto the fingers can.

The combined punching and binding devices of the State of the art consist of a punching device and a binding device attached to it for Punching and binding a stack of sheets. To the The sheets are punched into a recess in the Punching device pushed and an operating lever rotated, the rotational movement into a Translational movement of the punching tools is converted, thereby punching the stack of sheets.

To spread the loops of the truss, the Spine on a row from the binding device protruding pins stuck in such a way that the pins through the gaps between the fingers of the The ridges protrude and thereby the ridges cross to Pin longitudinal direction held on the binding device becomes.

The binding devices of the combined punching and Have binding devices of the prior art also an expansion body, which a number of Has hook. By turning the operating lever, through which is also punched, the hooks first in the longitudinal direction of the truss and then transversely to it so moved that they are in the loop-shaped fingers of the bandage. By turning the Actuating lever, the hooks are transverse to the pin level moved away so that the looped fingers of the The spine is spread and the leaves on the Fingers of the bandage can be pushed.

The combined punching and binding devices of the State of the art are relatively heavy and expensive because they need a translation mechanism which the rotational movement of the operating lever in Translational movements of the hooks in Truss lengthways and transversely to it converts.

The object of the invention is to be achieved a binding device like that train that it is easy, from a few parts exists, can be manufactured inexpensively and is easy to use. In addition, the Binding device in a simple way with a Punching device can be combined.

This object is achieved according to the invention by the characterizing features of claim 1 solved.

With a binding device according to the invention are not complex Translation mechanisms necessary as the spreading through a simple rotation of the expansion body by one Swivel axis takes place. This can reduce the number of parts the binding device low are held, what they are easy and makes others inexpensive to manufacture.

Fig.1

eine Seitenansicht einer bevorzugten Ausführungsform einer kombinierten Stanz- und Bindevorrichtung in einer Ausgangsstellung;

Fig.2

eine abgebrochene Draufsicht der kombinierten Stanz- und Bindevorrichtung von Fig.1;

Fig.3

eine Vorderansicht der kombinierten Stanz-und Bindevorrichtung von Fig.1 in einer Stanzstellung;

Fig.4

eine Seitenansicht der kombinierten Stanz- und Bindevorrichtung von Fig.3 mit einem in die Bindevorrichtung gemäß der Erfindung eingehängten Binderücken;

Fig.5

einen Ausschnitt aus der Seitenansicht von Fig.4 mit der Bindevorrichtung in einer Spreizstellung;

Fig.6

eine Vorderansicht einer weiteren Ausführungsform der kombinierten Stanz-und Bindevorrichtung in Stanzstellung.

The invention is described below using an exemplary embodiment with reference to the drawings. You show in

Fig. 1

a side view of a preferred embodiment of a combined punching and binding device in a starting position;

Fig. 2

a broken plan view of the combined punching and binding device of Figure 1;

Fig. 3

a front view of the combined punching and binding device of Figure 1 in a punching position;

Fig. 4

a side view of the combined punching and binding device of Figure 3 with a in the binding device according to the invention spine;

Fig. 5

a section of the side view of Figure 4 with the binding device in a spread position;

Fig. 6

a front view of a further embodiment of the combined punching and binding device in the punching position.

The combined shown in Figure 1 in side view Punching and binding device 1, which is not part of the invention, is used for punching and binding a stack of sheets. The Combined punching and binding device 1 comprises one Punching device 2, also called "punch", and one on her attached binding device 4 according to the invention.

The punching device 2 has a rectangular bracket 6 and a U-shaped punch bracket 8. The punching bracket 8 consists of a left punch leg 10 and a right punch leg 12 (not shown) the Length "a" and a web part 14, which is parallel to The longitudinal direction of the console 6 is, as shown in Fig.2. From three bracket blocks 16 protrude from the console surface of square tubes vertically upwards, which in one Row parallel to the longitudinal direction of the console 6 these are attached and in which one Punch pivot axis 18 is rotatably mounted. The two Ends of the punch pivot axis 18 are each on a free Attached end of the two punch bow legs 10, 12, so that the punch bracket 8 is pivotable about the bearing blocks 16 is, as shown in Fig. 1 and 2.

For punching, the rotary movement of the punching bracket 8 in a translational movement of punching tools 20 being transformed. Is to a backdrop guide 22 intended.

The link guide 22 includes a link body in Form of a roller 24, the free ends of each one Punching arm legs 10, 12 are rotatably fastened, wherein the roller 24 is parallel to the punch pivot axis 18 and is arranged at a distance "b" from it. The Set guide 22 also includes sets 26, in which the roller 24 is guided. The scenes 26 are formed by two U-profile rails 28 like a hood on a first, parallel to the roller 24, Square tube 30 are attached, the legs of the U-profile rails 28 the vertical outer walls of the include first square tube 30 and without spacing concern them. Between the web parts 32 of the two U-profile rails 28 and the top wall 34 of the first Square tube 30 are two in Square tube longitudinal direction open, transverse to Square tube longitudinal elongate direction Chambers 26 formed which are the backdrops of the Are the backdrop and through which the role 24 protrudes through. As a result, the two scenes 26 are on the roller 24 rotatably mounted on the punching bracket 8 hung, with the role 24 in the two scenes 26 can roll.

The punching tools are punching knives 20 which are in vertical guide grooves 36 are movably guided. The Guide grooves 36 are in a longitudinal wall 38 second square tube 40 transverse to its longitudinal direction attached and are just so deep that the punch knife 20 in them completely across the longitudinal direction of the groove are sunk. A third square tube 42, which parallel to the one provided with guide grooves 36 Longitudinal wall 38 of the second square tube 40 adjacent attached, causes the punch knife 20 not fall out of the guide grooves 36 and only vertically are free to move. The third square tube 42 is flush on one on the console surface attached, extending in the longitudinal direction of the console Stripe 44 attached, which is narrower than that Floor longitudinal side of the third square tube 42. Thereby creates a groove-shaped recess 46 between the Console surface and the bottom surface of the second Square tube 40 and part of the third Square tube 42. The upper ends 48 of the punch knife 20 protrude through one in the longitudinal direction of the square tube extending through slot 50 in the bottom of the first square tube 30 into the interior of the first Square tube 30 into it, the punching knives 20 almost to the top wall 34 of the first square tube 30 extend. The first square tube 30 is on his Back on the vertical contact surfaces of the Bearing blocks 16 and on its front Vertical guides 51 guided against axial tilting.

For punching, the sheets to be punched are in one Stack in a known manner in the groove-shaped recess 46 pushed and the punching bracket 8 on its web part 14 pushed down, causing the to the Punch lever legs 10, 12 attached roller 24 in one Circular arc path pivoted about the punch pivot axis 18 becomes. The roller 24 rolls in the two scenes 26 in the horizontal direction and exerts pressure on the top wall 34 of the first square tube 30, wherein this is pressed down with the roller 24. Here the punch knives 20 lay with their upper ends 48 from the inside to the top wall 34 of the first Square tube 30 and are vertical down pressed, with their lower ends 52 from the Guide grooves 36 emerge and the stack of sheets penetrate so that the leaves are punched. The Combined punching and binding device 1 is located then in the punching position shown in Figure 4.

The punch knives 20 have a rectangular shape Cross section, with the lower ends 52 each one have concave curved cutting edge 54, as in FIG. 3 is shown. Penetrate through the concave cutting edge shape the cutting 54 easier in the paper stack because the cutting edges 54 are pressed in sections.

So that when punching thick stacks of sheets no great effort is necessary, must be cheap Leverage ratios can be selected. That is why the distance "b" between the roller 24 and the punch pivot axis 18 small compared to the length "a" of the punch arm 10 and 12 as shown in Fig.1. To the effort at To further reduce punching of thick stacks of sheets are the punch knife 20 in the distance between their upper ends 48 and their lower ends 52 so staggered that a total of only one third each the punch knife 20 is engaged at a time located. The distance between the lower ones remains Ends 52 of the punching knife 20 and the driving pins 58 constant. The length grading of the die cutters 20 done by varying the distance between them upper ends 48 and driving pins 58.

To ensure that the punch returns automatically after punching To allow punching bracket 8 in its starting position several coil springs 56 are provided, which with one end from the inside on the top wall 34 of the first square tube 30 rest and the other End on the upward facing surfaces of the second and third square tube 40, 42 rests, the Coil springs 56 are pressure biased. The Coil springs 56 protrude through appropriate Bores in the bottom of the first square tube 30.

To punch 20 after punching out of the To be able to pull out stacks of sheets protrude through the wider side surface of the cutting knife 20 Driver pins 58, which are longer than that Bottom slot 50 of the first square tube 30 is wide, so that the driving pins 58 from the inside to the floor of the first square tube 30 can rest.

When you release the punch bracket 8, the first Square tube 30 through the vertical expansion of the Coil springs 56 pushed up, the Driving pins 58 from the inside to the bottom of the first Square tube 30 are pressed and thereby the Punch knife 20 from the stack of sheets up be pulled out. On the bearing blocks 16 is in each case a height stop 59 attached to the rebound of the first square tube 30 on its upper outer surface limited.

The binding device 4 according to the invention, which on the punching device 2 is attached, includes an L-shaped spreading lever 60, one of the spreading lever legs 62 on the left Side of the left punch arm 10 up over protrudes the punch bracket 8, the free end this a spreader lever leg 62 with a Hand knob 64 is provided. The other Spreader lever leg 66 is in a bearing bore 68 a spreader lever bearing body 70 parallel to Punch pivot axis 18 rotatably mounted. Of the Spreading lever bearing body 70 is on the left Punching bow leg 10 in the longitudinal direction between the web part 14 and the punch pivot axis 18 attached and protrudes downward from it, as Fig. 1 and 3 demonstrate. The spreading lever 60 is thus on the punching bracket 8 rotatably attached.

The free end of the other spreader lever leg 66 protrudes in an end bore 72 of a first Square bar 74 and is fastened in this, as in Fig.2 and 3 is shown. Because of this and through a in Fig.2 Rotary bearing, not shown, in the right punch arm 12 is the first square bar 74 relative to the punch bracket 8 between the two punch bracket legs 10 and 12 rotatably supported, the longitudinal direction of the first Square bar 74 parallel to the punch pivot axis 18 is.

On the longitudinal side facing the punching bar web part 14 of the first square bar 74 is a plate 76 attached, which with one end between the Punching bow legs 10 and 12 protrude upwards. At the top of the plate 76 is transverse to it first expansion body 78 attached, which to the web part 14 of the punch bracket 8 is directed. So that's the Spreading lever 60 over the first square bar 74 and the Plate 76 rotatably with the first expansion body 78 connected.

The first expansion body 78 has a number of in extending its longitudinal expansion body first hook 80, as shown in Fig.2. The Hook level of this first hook 80 is in the Starting position parallel to a plane in which the Punching bracket 8 lies.

A second square rod 82 is, in the longitudinal direction of the punch stirrup leg seen between the web part 14 of the Punching bracket 8 and the first square rod 74 attached, being parallel to the first square bar 74.

A second protrudes from this second square rod 82 Spreading body 84 upwards. The second expansion body 84 exhibits a number of in its Expanding body longitudinal extension extending second Hook 86 on. The hook level of the second hook 86 is arranged perpendicular to the plane in which the punching bracket 8 lies. As shown in Fig.1, lies in the Starting position, the hook level of the first hooks 80 perpendicular to the hook plane of the second hook 86. Die first hook 80 of the first expansion body 78 and the are second hooks 86 of the second expansion body 84 same hook direction and congruent at right angles arranged to each other.

Before spreading, the loop-shaped fingers become 88 a tie 90 into the first and second hooks 80, 86 of the first and second Spreading body 78.84 hooked, as Fig.4 shows. Here the first and second hooks 80, 86 are spaced apart from each other, which is smaller than that Loop diameter is so that the binding spine 90 with Play hooked on the first and second hooks 80.86 can be.

So that the elastic, loop-shaped fingers 88 des Back 90 not spreading from hooks 80.86 the hook ends of the first hooks can slide 80 one in the hook plane, inside the hook inclination directed against the direction of expansion from about 2 degrees. The second hooks 86 point the same directed against the spreading load direction 2 degree inclination perpendicular to their hook plane.

For spreading the fingers 88 of the spine 90 the Spreading lever 60 gripped on the hand knob 64 and such rotated that the first expansion body 78 from the second Spreading body 84 is pivoted away and the loop-shaped fingers 88 of the spine 90 be spread, as Fig.5 shows. The originally loop-shaped fingers 88 through the Spreads partly straight bent so that the previous perforated sheets pushed onto the ends of fingers 88 can be.

So that the taut fingers 88 without holding the Spreading lever kept in a spread state is a known clamping device 92 provided by which the spreading lever 60 opposite the punching bracket 8 in any angular position can be locked. The Spreading lever bearing body 70 on a slot 94, which from the bearing bore to the free end of the Spreading lever bearing body 70 extends, whereby the Spreading lever bearing body 70 in two Spreading lever bearing body cheeks 96 and 98 is divided.

A wing clamping screw extends across this slot 100, which with its shaft through the an expanding lever bearing body cheek 96 protrudes and into the other expansion lever bearing body cheek 98 is screwed. By tightening the wing clamp screw 100 the two expanding lever bearing cheeks 96.98 compressed, causing the spreading lever 60 in the Bearing hole is clamped and thus locked.

After inserting the sheets, the wing clamping screw 100 released and the spreading lever 60 in turned back its starting position. The roll Fingers 88 of the bandage 90 due to their Elastic again together in a loop and tie thereby the sheets held by fingers 88.

Instead of hooks 86, the second expansion body 84 can be in a further embodiment, which is shown in FIG , also have retaining pins 102 which are vertical protrude upwards and transversely to the longitudinal direction of the expansion body the first hooks 80 of the first expansion body 78 overlap. Before spreading, the binding spine becomes 90 in the binding device 4 inserted such that the Retaining pins 102 through spaces between the Fingers 88 of the spine 90 protrude and on one Back part of the binding spine 90 and this thereby when spreading on the second spreading body 84 hold tight.

With the binding device 4 according to the invention Binding 90 different diameters and Designs spread and closed again become.

Claims (8)

1. Binding device (4) for binding a stack of sheets, which have a multiplicity of punched holes along one edge of the stack, using an elastic binding spine (90), which has a longitudinal extent running parallel to the edge of the sheets, in that loop-like fingers (88) of the elastic binding spine (90) are spread open in order to be guided through the holes of the sheets, the binding device (4) comprising the following:

   a framework (8), a first spreading body (78), which engages in the elastic loop-like fingers for the spreading-open operation, a second spreading body (84), which is fastened on the framework (8) in order to retain the binding spine (90), and spreading-actuation means (60) in order to actuate the first spreading body (78), the spreading bodies (78, 94) each hating a longitudinal extent parallel to the longitudinal direction of the binding spine, characterized in that the spreading-actuation means (60) are drive-connected to the first spreading body (78) such that the first spreading body (78) can be pivoted in relation to the second spreading body (84), and the planes in which the first and second spreading bodies (78, 84) are located can be moved at an angle relative to one another.
2. Binding device according to Claim 1, characterized in that the first spreading body (78) has a row of first hooks (80) extending along its longitudinal extent.
3. Binding device according to Claim 2, characterized in that the second spreading body (84) has a row of second hooks (86) extending along its longitudinal extent, it being the case that the first hooks (80) and the second hooks (86) are oriented in the same direction and are located opposite one another, and the loop-like fingers (88) of the binding spine (90) can be fitted into the second hooks (86) of the second spreading body (84) at the same time as they are fitted into the first hooks (80) of the first spreading body (78).
4. Binding device according to Claim 3, characterized in that the first hooks (80) and the second hooks (86) have legs which diverge away from one another at an angle and are inclined obliquely counter to their spread-loading direction.
5. Binding device according to Claim 2, characterized in that the second spreading body (84) has a row of retaining pins (102) which extend transversely to the longitudinal direction of the spreading body and are spaced apart from one another in the longitudinal direction of the spreading body, and the first hooks (80) of the first spreading body (78) overlap transversely to this direction.
6. Binding device according to one of the preceding claims, characterized in that the spreading-actuation means have a spreading lever (60) to which the first spreading body (78) is connected in a rotationally fixed manner.
7. Binding device according to one of the preceding claims, characterized in that there is provided a clamping device (92) by means of which the first spreading body (78) can be arrested in a desired angled position in relation to the second spreading body (84) and released again.
8. Binding device according to one of the preceding claims, characterized in that it is combined with a punching device (2).

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