DE20319003U1 - Paper guillotine has flat base with cutting lever arm on one side and cutting roller on opposite side - Google Patents

Abstract

The paper guillotine (1) has a flat base surface (3) for carrying the paper (18). One side of the base has a lever actuated cutter (4) with a pivotable cutter arm (6) carrying the cutter blade. An opposing cutter blade is fixed to the base. A cutting roller (5) is mounted on the opposing side of the base and running on a guide rail (11) via carriage (14).

Description

The invention relates to a cutting device for trimming of sheet material such as paper, foils or the like with a flat base for the Support of the sheet material on one side with a lever cutting device is provided with a pivoted knife arm with it held cutting edge and a stationary on the base Has counter knife.

Cutters of the type mentioned above are special for office use intended. They are mostly used for trimming paper sheets A4 format and smaller, at most A3 format. The cutters point on one long side a lever cutting device. Such a lever cutting device has one at a corner of the pad around a horizontal axis Swivel-mounted knife arm on which a protruding on the underside Cutting knife is attached. It corresponds to one at the Pad attached counter knife. At the free end of the knife arm is a handle arranged over which the knife arm swung down from a swiveled-up position can be with the result that a Counter knife protruding sheet material is trimmed. Such cutters are basically for decades same version in the office area in use.

With such cutters sheet material can be cut relatively well if the sheet material is not insignificant over the Counter knife protrudes, otherwise there is a risk that the supernatant by the cutting edge pressed down and is not cut cleanly. It can also be one of several Scroll Cut existing stack of sheets at the same time, provided the stack of sheets one not too big Height.

Generation creates difficulties a smooth cutting edge, especially if the protrusion over the Counter knife is only minor. Moreover exists at. the lever cutting devices the risk that the storage the knife arm gets a game over time so that it can be used for generation a smooth cut is required, the knife arm with considerable Pressure against the counter knife. Because of this condition the cutter is not recognizable, there are unsatisfactory cutting results.

The invention is based on the object cutter of the type mentioned at the outset so that good, even under difficult conditions Cutting results can be achieved.

This object is achieved according to the invention solved, that - preferably on another side of the base - a roll cutter is provided is one that can be moved on a guide rail Knife carriage and a disc knife rotatably mounted therein. The basic idea of the invention is therefore a cutter with two to provide different types of cutting devices, the one cutting device having strengths in the area in which the other cutter works less well. While the Lever cutting device, in particular for trimming stacks of sheets is suitable, the roll cutting device according to the invention is characterized by a clean cut even with minimal protrusions or cut off edges out. You can therefore particularly good for use the edge trimming of photo prints or the like. The cutting device according to the invention is therefore essential more versatile and does not take up more space than known ones Cutters of the generic type.

In an embodiment of the invention it is provided that lever and roll cutting device are arranged so that they have parallel cutting directions. These open up the Possibility, To cut sheet material on both sides simultaneously and absolutely parallel. It could the distance must be dimensioned according to a certain standard format. There can be another parallel between lever and roll cutting device stop rail extending to the cutting directions is provided be, which is guided transversely to the cutting directions.

The disc knife has expediently an axis of rotation parallel to the base. The disc knife should do this with its cutting edge on a counter knife rail, for example can consist of plastic, rest or at least be pressed.

According to another feature of the invention provided that the guide rail from a lower cutting position to an upper starting position can be raised and lowered again into the cutting position is and that the Gap between the base and the guide rail from the front of the guide rail inaccessible is. This is based on the idea of the vertical movement of the disc knife not by the knife carriage, but by means of the guide rail to effect by the guide rail for the Pushing the material to be cut first raised and then into the Cutting position, in which the disc knife rests on the base, is lowered. In this way, the handling of the cutting process much easier and leads to clean cuts. It is particularly important that the gap between guide rail and pad is inaccessible from the end faces of the guide rail, that is is covered there so that it not possible in this area is that finger the operator get into the gap and when lowering the guide rail be pinched.

In a further embodiment of the invention it is proposed that the guide rail is guided vertically displaceably in the region of its end faces, so that it is raised and lowered parallel to the base can be lowered, preferably by no more than 20 mm, preferably about 12 mm. As an alternative to this, however, it can also be provided that the guide rail is mounted in the region of an end face so as to be pivotable about a horizontal axis, specifically by an angle of 10 °, preferably 4-5 °. So that the gap between the base and the guide rail on the two end faces of the guide rail is inaccessible, these end faces should overlap with the base. It goes without saying that this overlap is necessary in the case of a pivotably mounted guide rail only at its free end and not in the region of the pivot bearing, since the pivot bearing itself forms an obstacle to access into the gap between the base and the guide rail. Insofar as an overlap is provided, this can be done by a protective nose protruding downwards and overlapping with the base. So that the guide rail is well guided laterally in this area, the protective lug should fit into a suitable slot in the base.

The guide rail can be suspended that she without actuation assumes the cutting position with the disc knife on the Pad sits on. For pushing the sheet material through the gap between the guide rail and underlay can the guide rail be lifted by hand. Alternatively, there is also the option of that the guide rail without actuation is held in the starting position by means of a spring. This makes it easier pushing the Blattgu tes through the gap, however, requires the depressing the guide rail for the cutting process. Nevertheless, a clean cut is also possible with this embodiment, because pressing down the guide rail with one hand and the shifting of the knife carriage with other hand can be done, which is much easier to use is than in the known roll cutting devices, in which the knife carriage is depressed and must be moved at the same time.

According to the invention is further provided that the guide rail on their height-adjustable End (s) with a blocking device or blocking devices can be fixed in the cutting position. In this way, the guide rail for the The cutting process is fixed and cannot move automatically or does not have to during the Cutting process depressed if a spring counteracts this. This makes operation easier of the cutting device.

The or each blocking device is preferably designed as a snap device into which the guide rail snaps automatically and unlockably when moving into the cutting position, So that the Fixing the guide rail in the cutting position is not associated with additional manipulations is. Just for the unlocking process after the cutting process is an actuation of the Snap device necessary to unlock them. This can the snap device an actuating slide have the cheaper Place is appropriate.

In a further embodiment of the invention it is proposed that the Underlay an area with an elastic cutting edge, preferably has a cutting base made of an elastomeric material and the guide rail is loosely assigned to the cutter with the knife carriage. To this Way the user has the ability the roll cutter within the range of elastic Arrange and use cutting pad differently. there should the guide rail stand up from a platen on the cutting surface is hangable. The support plate preferably consists of a transparent plastic, being. Lines can be provided parallel to the guide rail extend and allow alignment of the guide rail.

In the drawing is the invention based on exemplary embodiments illustrated in more detail. It demonstrate:

1 an oblique view of the invention. Cutter;

2 a side view of the roll cutting device of the cutting device according to 1 ;

3 a cross section through the cutter according to the 1 and 2 in the area of the roll cutting device;

4 an oblique view of a further embodiment of the cutting device according to the invention before the cutting process;

5 the oblique view according to 4 after the cutting process;

6 an oblique view of a third embodiment of a cutting device, limited to the corner region with the free end of the guide rail;

7 an oblique view of a fourth embodiment of the cutting device according to the invention with loose roll cutting device and

8th the oblique view according to 6 with roll cutting device placed on the cutter.

This in 1 shown cutting device 1 has a frame plate having a substantially rectangular plan 2 on, the horizontal top of which is a mat 3 for sheet material to be trimmed. On the upper long side in this view are a Hebelschneideinrich device 4 and on the lower longitudinal side in this view a roll cutting device 5 arranged.

The lever cutting device 4 has a knife arm 6 on that in a camp 7 is pivotally mounted about a horizontal axis running transversely to the longitudinal side there. The knife arm 6 is essentially along its entire length provided a cutting knife on its underside, which is concealed in this view. At the free end of the knife arm 6 is a handle 8th trained over which the knife arm 6 can be pivoted up and down. The knife arm is in the position shown 6 in the lower end position.

The cutting knife of the knife arm 6 corresponds to a counter knife 9 that in the document 3 is embedded flush. With the knife arm 6 a protective device is connected 10 the cutting knife with the knife arm raised 6 covers and thus provides protection for the operator.

The roll cutter 5 has a guide rail 11 on, which is at a distance from the surface 3 parallel to the cutting edge or cutting direction of the lever cutting device 4 between two holding blocks 12 . 13 extends. On the guide rail 11 is a knife wagon 14 in the direction of the longitudinal axis of the guide rail 11 slidably guided. It can be pushed back and forth by hand.

Like especially that 2 and 3 show is on your knife cart 14 a disc knife 15 rotatably mounted, namely around a horizontal axis 16 that are transverse to the longitudinal axis of the guide rail 11 extends. The disc knife 15 stands down over the knife carriage 14 and is on a counter knife rail 17 on that in the underlay 3 is embedded and parallel to the guide rail 11 extends. In the example according to the 2 and 3 drives the disc knife 15 just over a sheet of paper 18 and cut its excess 19 by moving the knife carriage 14 from.

Between the lever cutting device 4 and the roll cutter 5 extends parallel to this a stop rail 20 on which sheet material can be aligned. The stop rail 20 includes a guide rail at the end 21 and is guided on it transversely. The guide rail 21 extends at right angles to the cutting directions of the lever cutting device 4 or roll cutting device 5 ,

That in the 4 and 5 shown cutting device 31 has a frame plate having a substantially rectangular plan 32 on, the horizontal top of which is a mat 33 for sheet material to be trimmed. In the area of the long side of the frame plate lying at the front in the view 32 there is a roll cutter 34 , The ren in the embodiment according to the Figu 1 to 3 additionally existing lever cutting device is not shown here.

The roll cutter 34 has a guide rail 35 on, which is at a distance from the surface 33 parallel to the long side of the frame plate 32 extends. On the guide rail 35 is a knife wagon 36 in the direction of the longitudinal axis of the guide rail 35 slidably guided. It encompasses the guide rail 35 U-shaped and has an attachment on the top 37 over which the knife carriage 36 can be pushed back and forth by hand. The knife carriage 36 has a bearing axis on the front side in this view 38 that are horizontal and transverse to the longitudinal axis of the guide rail 35 extends and on which a disc knife 39 is freely rotatable. Below the disc knife 39 is an edition 40 on the pad 33 attached, which consists of an elastomeric material. It extends over the entire range of motion of the disc knife 39 ,

The guide rail 35 is at the far end in the views via a pivot bearing 41 pivotable with the frame plate 32 connected. The swivel axis runs horizontally and transversely to the longitudinal axis of the guide rail 35 , Accessibility to the gap between the guide rail 35 and pad 33 is in the area of this end face of the guide rail 35 through the swivel bearing 41 blocked. The guide rail points at the other end 35 a protective nose facing downwards 42 on. It fits into a guide groove 43 one in the short side of the frame plate 32 is molded in such a way that the guide groove 43 is edged on both sides and guided laterally.

In 4 is the guide rail 35 in an upward pivoted starting position so that the disc knife 39 from the edition 40 is raised and a sheet to be trimmed 44 unobstructed through the gap between the guide rail 35 and pad 33 can be pushed. In this position the guide rail 35 through a close to the pivot bearing 41 arranged spring held. The knife carriage is located there 36 adjacent to the pivot bearing 41 , The lower end of the protective lug is in this position 42 still in the guide groove 43 so that the gap between the guide rail 35 and pad 33 is also inaccessible from this end face.

The guide rail is used for the cutting process 35 swung down against the spring and then takes the in 5 position shown in which they are substantially parallel to the base 33 extends. Here comes the disc knife 39 attached to the edition 40 , Then the knife carriage 36 from the in 4 shown position towards the free end of the guide rail 35 with light pressure on the edition 40 moved, the disc knife 39 performs a rotary movement and at the same time the sheet material 44 cuts. That remains on the document 33 dormant, trimmed leaf part 45 and the cut sheet part 46 ,

This in 6 shown cutting device 47 differs from the cutter 31 only by forming the area at the free end of the guide rail 35 , why for same or functionally identical parts already for this 4 and 5 Reference numerals used for the description of this embodiment of the cutting device 47 are adopted and reference is made to the above description. Only the differences are shown below.

Instead of the protective nose 42 points the guide rail 35 an attached end block at its free end 48 on by a guide block designed as a horizontal U. 49 edged on both sides and thereby guided transversely to its longitudinal axis. In the face of the end block 48 a recess, not shown here, is molded into the one in the guide block 49 led jack latched. The pawl is rigid with an operating slide 50 connected, which is guided displaceably in the directions of the double arrow A, the actuating slide 50 by a spring in the direction of the end block 48 is tense.

The guide rail is located in the illustration shown 35 in the (lower) cutting position and is held in this position by the pawl, so that the cutting process can be carried out without the guide rail 35 must be depressed. After the cutting process, the operating slide 50 to the left, that is from the end block 48 moved away, causing the pawl from the recess in the front of the end block 48 drives out and the guide rail 35 is released. It then swings automatically into the upper starting position due to the action of the spring. The guide rail is used for a new cutting process 35 back towards the pad 33 pivoted. When the cutting position is reached, the pawl snaps into the recess in the end block 48 and thus places the guide rail 35 fixed again.

That in the 7 and 8th shown cutting device 51 , also has a frame plate which is essentially rectangular in plan 52 on, the horizontal top of which is a mat 53 for sheet material to be trimmed. On a top long side in this view is a lever cutting device 54 and in the area of the lower longitudinal side in this view is a roll cutting device 55 intended.

The lever cutting device 54 has a knife arm 56 on that in a camp 57 is pivotally mounted about a horizontal axis running transversely to the longitudinal side there. The knife arm 56 is essentially provided over its entire length on its underside with a cutting knife, which is hidden in this view. At the free end of the knife arm 56 is a handle 58 trained over which the knife arm 56 can be pivoted up and down. The knife arm is in the position shown 56 in the lower end position.

The cutting knife of the knife arm 56 corresponds to a counter knife, also not visible here, which is in the base 53 is embedded flush. With the knife arm 56 a protective device is connected 59 , which covers the cutting knife when the knife arm is raised and thus provides protection for the operator.

The roll cutter 55 has a guide rail 60 on which a knife wagon 61 slidable in the direction of the longitudinal axis of the guide rail 60 is led. It can be pushed back and forth by hand. On the knife carriage 61 is a disc knife, not shown here, rotatably mounted, namely about a horizontal, transverse to the longitudinal axis of the guide rail 60 extending axis. The disc knife stands down over the knife carriage 61 in front. The guide rail 60 is on a platen 62 attached. platen 62 and guide rail 60 with knife carriage 61 are loose parts on the base 53 with the platen 62 can be put on at the bottom, like from 2 can be seen.

To the roll cutter 55 also includes a cutting pad 63 that are used in a recess 64 in the document 53 can be used as well. 2 can be seen. The cutting pad made of an elastomer 63 closes flush with the surface of the underlay 53 from. The cutting pad 63 acts as a counter knife to the disc knife.

For the use of the roll cutter 55 become the unit from the guide rail 60 , Knife carriage 61 , Platen 62 and the cutting pad 63 in the in 8th shown position set. The unit can be made from a guide rail 60 , Knife carriage 61 and platen 62 on the cutting surface 63 be moved by hand in order to be able to make the cut at the intended location of the sheet material.

Between the lever cutting device 54 and the roll cutter 55 extends parallel to this a stop rail 65 on which sheet material can be aligned. The stop rail 65 includes a guide rail at the end 66 and is guided on it transversely. The guide rail 66 extends at right angles to the cutting directions of the lever cutting device 54 or roll cutting device 55 ,

Claims (24)

Cutter ( 1 . 31 . 47 . 51 ) for trimming sheet material ( 18 . 44 ) such as paper or foils with a flat base ( 3 . 33 . 53 ) for the support of the sheet material ( 18 . 44 ) with a lever cutting device on one side ( 4 . 54 ) is provided which has a pivotably mounted knife arm ( 6 . 56 ) with the cutting edge held on it and a stationary one on the base ( 3 . 33 . 53 ) counter knife held ( 9 ), characterized in that in addition a roll cutting device ( 5 . 35 . 55 ) is provided, one on a guide rail ( 11 . 35 . 60 ) move bar knife carriage ( 14 . 36 . 61 ) and a disc knife rotatably mounted on it ( 15 . 39 ) having. Cutting device according to claim 1, characterized in that the roll cutting device ( 5 . 35 . 55 ) on another side of the pad ( 3 . 33 . 53 ) is arranged. Cutting device according to claim 1 or 2, characterized in that the lever cutting device ( 4 . 54 ) and the roll cutter ( 5 . 35 . 55 ) are arranged so that they have parallel cutting directions. Cutting device according to claim 3, characterized in that between the lever cutting device ( 4 . 54 ) and roll cutting device ( 5 . 35 . 55 ) a stop rail running parallel to the cutting directions ( 20 . 65 ) is provided, which is displaceably guided transversely to the cutting directions. Cutting device according to one of claims 1 to 4, characterized in that the disc knife ( 15 . 39 ) one for underlay ( 3 . 33 . 53 ) has a parallel axis of rotation. Cutting device according to one of claims 1 to 5, characterized in that the disc knife ( 15 . 39 ) with its cutting edge on a counter knife rail ( 17 . 40 . 63 ) is present or can be pressed. Cutting device according to one of claims 1 to 6, characterized in that the guide rail ( 35 ) can be raised from a lower cutting position to an upper position and lowered from this into the cutting position and that the gap between the base ( 33 ) and guide rail ( 35 ) from the end faces of the guide rail ( 35 ) is inaccessible. Cutting device according to claim 7, characterized in that the guide rail ( 35 ) is guided vertically displaceably in the area of your end faces. cutter according to claim 8, characterized in that the guide rail by 5 to 20 mm can be raised. Cutting device according to claim 7, characterized in that the guide rail ( 35 ) is mounted so as to be pivotable about a horizontal axis in the region of an end face. Cutting device according to claim 10, characterized in that the guide rail ( 35 ) can be pivoted by an angle of maximum 10 °. Cutting device according to one of claims 7 to 11, characterized in that the end face (s) of the guide rail ( 35 ) with the pad ( 33 ) overlaps or overlap. Cutting device according to claim 12, characterized in that in each case the overlapping end face of the guide rail ( 35 ) one with the pad ( 33 ) overlapping, protruding nose ( 42 ) having. Cutting device according to claim 13, characterized in that the protective nose ( 42 ) in a slot ( 43 ) in the document ( 33 ) is guided laterally. Cutting device according to one of claims 7 to 14, characterized in that the guide rail ( 35 ) assumes the cutting position without actuation. Cutting device according to one of claims 7 to 14, characterized in that the guide rail ( 35 ) without actuation by means of a spring in the upper one. Position is held. Cutting device according to one of claims 7 to 16, characterized in that the guide rail ( 35 ) at its or its vertically movable end (s) by means of a blocking device ( 48 ) or can be fixed in the cutting position by means of blocking devices. Cutting device according to claim 17, characterized in that the or each blocking device ( 48 ) is designed as a snap device into which the guide rail ( 35 ) snaps automatically and unlockably when moving into the cutting position. Cutting device according to claim 18, characterized in that the snap device has an actuating slide ( 50 ), via which the snap device can be unlocked. Cutting device according to one of claims 1 to 19, characterized in that the base ( 53 ) an elastic cutting pad ( 63 ) and the guide rail ( 60 ) with the knife carriage ( 61 ) your cutting device ( 51 ) is loosely assigned. Cutting device according to claim 20, characterized in that the cutting base ( 63 ) consists of an elastomeric material. Cutting device according to claim 20 or 21, characterized in that the guide rail ( 60 ) from a platen ( 62 ) stands on the cutting surface ( 63 ) can be placed. Cutting device according to claim 22, characterized in that the support plate ( 62 ) consists of a transparent plastic. Cutting device according to claim 23, characterized in that the support plate ( 62 ) is provided with lines that are parallel to the guide rail ( 60 ) extend.