DE202005004160U1 - Thin sheet e.g. paper, cutting tool, has clamp whose position can be displaced through change-over of position of interchangeable device, such that top side of knives is gradually pressed down through stack device to cut thin sheets - Google Patents

Abstract

The tool has a clamp (70), and a body (50) with a stack device (511) for controlling and suspension of knives at the body. An interchangeable device (60) is arranged at the circumference of the body. The position of clamp can be displaced through the change-over of the position of interchangeable device, such that the top side of knives is gradually pressed down through the stack device for cutting thin sheets.

Description

The The present invention relates to a cutting tool with a majority convertible cutting blades for cutting flat goods (Papers, plastic films, etc.).

One conventional Contains cutting tool just a cutting knife for straight cutting and can thus the various application requests (for example, to the dotted Cutting, paper folding or trimming) of a user do not match. In Bedafsfall one needs therefore additionally one buy corresponding cutting tool. So it's not just always relatively laborious and impractical, but also not cost-effective.

In order to overcome the above-mentioned disadvantages, an improved cutting tool has been known. Reference may be made to Taiwanese Patent Specification 221111. See heir 5 and Descriptions of this Specification (Note: the reference numerals of this patent specification are rearranged for clarity):

At the rotary device 11 of the improved cutting tool 10 has a first slope 111 , a second inclination 112 and a third inclination 113 on, each one the first cutting knife 12 , second cutting knife 13 and third cutting knife 14 is arranged accordingly. After a user turns the rotary device 11 by force turns to a certain angle of rotation, the second inclination 112 (or third inclination 113 ) the second cutting knife 13 or third cutting blade 14 Press down to touch a thin piece of paper. Likewise, after a user turns it on to the rotation device 11 Applied force triggers, the rotation device 11 by means of the restoring force of a torsion spring 15 be reset to the starting position, whereby the Rückstellkarft the second cutting blade 13 (or third cutting knife 14 ) each of suspension 131 . 141 will be produced.

• 1. daß ein Benuzter die Rotationsvorrichtung 11 mit fortlaufender Gewalt drehen muss, um das Schneidmesser 12, 13 14 ein dunes Blättchen zu berühren. Mit anderen Worten, bei einem Abschnittvorgang muss man seine Kraft dauernd anwenden, um das Schneidmesser 12,13,14 auszusetzen. Dabei muß die angewendete Kraft größer als die Rückstellkraft der Torsionsfeder 15 sein. Bei einer Massenfertigung wäre es sehr unangenehme, insbesondere für eine Arbeiterin, da man eine große Muskelkraft braucht und diese Kraft dauerhaft anwenden soll.
• 2. daß nachdem ein Benutzer die Rotationsvorrichtung 11 mit Gewalt bis zum einem gewissenen Drehwinkel dreht, wird das mitten angeordnete Schneidmesser in Wirklichkeit zuerst durch die Neigung 111 niedergedrückt und ausgesetzt; daß bei weiterer Drehung der Rotationsvorrichtung 11 das Schneidmesser 13 zuerst die Spitze der Neigung 111 vorbeigeht und sich erst nach Eintritt der anderen Schräge nach Innen verstecken und dann das zweite Schneidmesser 13 (bzw. dritte Schneidmesser 14) durch die zweite (bzw. dritte Neigung) 112, 113 (abhangig von der Drehrichtung) niedergedrückt und ausgesetzt wird, d.h. das mitten gelagerte Schneidmesser 12 wird nachteilig gleichzeitig mit dem zweiten (bzw. dritten Schneidmessern) 13, 14 zusammenwirken; daß das verbesserte Schneidwerkzeug keine Arretiervorrichtung zur Schneidemesserfestlegung aufweist, die Festlegung eines Schneidmessers durch die Hand des Benuzters gesteuert wird und zwar man nicht weißt, bis zu welchem Winkel ein Schneidmesser befestigt werden muß. Dabei entstünde die Gefahr, ein ungünstiges Abschnittergebnis zu bekommen. Bei einer Auslösung der Rotationsvorrichtung 11 sind die Neigungen 111, 112, 113 sehr leicht verschoben, so daß ein einwandfreies Abschneiden erschwert ist.

A disadvantage of above-mentioned constructions, however, are

• 1. that a user the rotation device 11 with continuous force must turn to the cutting blade 12 . 13 14 to touch a dark leaflet. In other words, in a sectioning process one must constantly apply its force to the cutting blade 12 . 13 . 14 suspend. The applied force must be greater than the restoring force of the torsion spring 15 be. In a mass production, it would be very unpleasant, especially for a worker, because you need a great muscle power and should apply this force permanently.
• 2. That after a user turns the rotary device 11 Forcibly turns by a certain angle of rotation, the center knife is actually in the first place by the inclination 111 depressed and exposed; that upon further rotation of the rotary device 11 the cutting knife 13 first the tip of the slope 111 passes by and hides inside after entering the other slope and then the second cutting knife 13 (or third cutting knife 14 ) by the second (or third inclination) 112 . 113 (depending on the direction of rotation) is depressed and exposed, ie the middle-mounted cutting blade 12 becomes disadvantageous simultaneously with the second (or third cutting knives) 13 . 14 cooperate; that the improved cutting tool has no locking device for cutting knife setting, the determination of a cutting blade is controlled by the hand of Benuzters and one does not know to what angle a cutting blade must be attached. Thereby the danger would arise to get an unfavorable cut-off result. When the rotation device is triggered 11 are the inclinations 111 . 112 . 113 moved very slightly, so that a perfect trimming is difficult.

Of the Invention is thus the important object of a cutting tool to provide, in which the different cutting blades preferably transposed and detected by transverse movements can be to facilitate the changeover procedure with little force.

Of the Invention is based on a further object, a cutting tool to create that symbol of the respective cutting blade at the respective point on the housing of the main part provides and a shop window on the housing of the interchangeable Device to the type of a selected cutting blade at a Use clear refer to.

The set tasks are specified by the protection claims Characteristics solved.

The main feature of the cutting tool according to the invention consists in a main part, a replaceable device, a holder and at least two cutting blades, the cutting blades are fixed in the holder and each has a cutting blade in different versions, to make different cutting can; the replaceable device forms on the circumference of the main part and is in operative connection with the holder. With appropriate conversion of the interchangeable device, the holder can preferably be moved so that the provided in the main body shock device to depress the upper part of a cutting blade to suspend the cutting blade outside the main body and to cut a thin sheet. Each above cutting blade includes a spring to produce the force to return the cutting blade to the initial position.

The Invention will now be an embodiment and explained in more detail with reference to the accompanying drawings. Put in the drawing represents:

1 a perspective view of a known cutting tool;

2 a schematic representation of the present invention in practical use together with a cutting stand;

3 an exploded perspective view of a preferred embodiment of a cutting tool according to the invention;

4 a cross-sectional view of the preferred embodiment of the cutting tool according to the invention,

5 a cross-sectional view of the preferred embodiment of the cutting tool according to the invention, wherein the possibility of the conversion positions of the various cutting blades is shown, and

6 a side view of the preferred embodiment of the cutting tool according to the invention.

How out 2 it can be seen is the cutting tool according to the invention 20 with a cutting stand 30 in active connection. The cutting stand 30 is a carrier with an open space and has a stencil groove 31 as the passage for the cutting tool 20 on. On both sides of this template groove 31 includes a press plate 32 for fixing a thin sheet to be cut off 40 , The thin sheet 40 gets on the cutting stand 30 put on and from press plate 32 Lower printed. When sliding the cutting tool 20 into the template groove 31 running across the thin sheet 40 be cut in two pieces.

The cutting tool 20 (see also 3 ) consists essentially of a main part 50 , a removable device 60 , a holder 70 and at least two cutting blades 80 . 90 ,

The main part 50 consists of two uniform housings and includes an upper part 51 and a lower part 52 , The width of the shell 51 is smaller than the width of the base 52 , A curved bumper 511 is in the shell 51 arranged and a guide groove 512 is in addition to the corresponding position of the upper part 51 educated. At the bottom of the base 52 is a knife access opening 521 provided and a rail 522 is on each side of the blade access opening 521 outstanding arranged. At the bottom of the base 52 includes a locking device 523 that with the template groove 31 the cutting stand is in operative connection.

It also has a symbol 513 of the relevant cutting blade (see 6 ) in each case according to the location of the various cutting blades on the surface of the upper part 51 on. A majority of holes 514 are at the guide 512 in each case arranged in accordance with the positions of the respective cutting blade, which are preferably used as the closure points for Umsetzllung a cutting blade.

The interchangeable device 60 consists of two uniform housing and is on the perimeter of the shell 51 of the main part 50 arranged. The interchangeable device 60 contains an opening 61 on the surface and has at the bottom of a projecting snap part 62 with a locking projection 621 on, the hole 514 the guide groove 512 is designed accordingly, which serve as the closure points for Umsetzllung a cutting blade. After compilation of the two housings, the above-mentioned opening 61 a shop window preferably be formed, by which one the selected symbol 513 can take.

The holder 70 Consists of two uniform housings and wraps the cutting tools in the main body 50 be attached. On one side of the bracket 70 includes at least two vertical grooves 71 passing through a curtain wall 72 are separated. At appropriate position of the partition 72 is a lock hole 73 arranged, with the above-mentioned snap part 62 is in active connection. Each above vertical groove 71 can pick up a cutting knife in that groove 71 preferably can move vertically. On the other side of the bracket 70 are two sliders 74 according to the main part 50 provided rails 522 arranged, which can move the cutting blades stable transverse running therethrough.

In the previously known cutting types, for example, a thin sheet 40 either cut into the two pieces, or can be a dividing line on a thin sheet 40 for hand tear purpose, or may be a bending track (edged trace) on a thin sheet 40 getting produced. In the embodiment according to the invention is preferred, all three above ver form various well-known Schmeidwerkzeuge, namely a cutting tool for curve cutting, a press brake (punching tool) for the production of flexible track and a sharp cutting blade for cutting. For cutting a thin sheet 40 must be the cutting tool 20 at the cutting stand 30 just glide. To make a tear line you need on a thin sheet 40 easily cut a cut mark with a certain distance and length, which must preferably be made by a turning process. For this reason, the cutting tool according to the invention preferably comprises at least one rotatable cutting blade 80 and a fixed cutting knife 90 ,

The above-mentioned rotatable cutting blade 80 includes two sliding walls 81 . 82 , On a sliding wall 81 are two punctures 811 . 822 appropriate. At another gliding wall 82 are locking pins 821 . 822 attached accordingly. A wheel axle 823 can on the locking pin 822 can be arranged and stands with the center hole of the cam cutter 824 in conjunction and these parts are formed as a one-piece part, so that the curve cutting knife 824 on the thin sheet 40 can suitably rotate to produce punctured cut marks on it.

On one side of the above fixed blade 90 is a spin-off 91 with a locking pin 92 designed so that a provided with a through hole cutting blade on this locking pin 92 can hang around the suspended cutting blade by an opposing pressure piece 93 in this spin-off 91 to be able to ensure.

In the preferred embodiment of a cutting tool according to the invention comprises a rotatable cutting blade 80 and two fixed cutting blades 90 on, with the rotating cutting blade 80 for arranging a cam cutter 824 and the fixed cutting knife 90 in each case for the arrangement of a cutting knife 94 and a press brake 95 serves.

At the top of the above-mentioned rotating cutting knife 80 and fixed cutting knife 90 each has an increase 825 . 96 with curved edge and with dimensions larger than the vertical groove 71 on and the spring 826 . 97 is each at the bottom of these elevations 825 . 96 arranged.

The above cutting knife 80 . 90 are each in the vertical grooves 71 the holder 70 arranged and the spring 826 . 97 are between the top of the bracket 70 and the raises 825 . 96 attached to the resetting forces to move the cutting blades 80 . 90 in the vertical grooves 71 offer. The sliders 74 the holder 70 are on the two sides of the rails 522 of the main part 50 used and the rails 522 serve as the path of movement. The holder 70 is in the main part 50 arranged. The snap part 62 the above-mentioned interchangeable device 60 can from outside of the main part 50 through the guide groove 512 of the top 51 with the locking hole 73 the holder 70 be snapped so that the interchangeable device 60 with the bracket 70 to be in operative connection. After putting together the two housings of the main part 50 a complete cutting tool can preferably be constructed.

The conversion of a cutting blade can be achieved by shifting the interchangeable device 60 be achieved. It will now be related to the 4 and 5 taken. If you have the rotatable cutting knife 80 into the fixed cutting knife 90 If you want to change, you push the interchangeable device 60 passing transversely to the top of the pusher 511 trigger and the locking projection 621 from the hole of the guide groove 512 to free. The restoring force of the spring 826 will be the movement of the rotary cutting knife 80 accompanying gradually expanded so that the rotating cutting blade 80 in the vertical groove 71 can slide upwards to the cam cutter 824 gradually from knife access opening 521 in the holder 70 take. At the same time, the increase 96 of the fixed cutting blade 90 doing the edge of the shock device 511 Touch to allow the spring 96 together and the fixed cutting blade 90 in the vertical groove 71 to be able to slide downwards around the worn cutter 94 or the press brake 95 gradually out of the blade access opening 521 of the main part 50 suspend until the locking projection 621 in the hole 514 the guide groove 512 is reached to the shock device 511 to the top of the fixed cutting blade 90 hold. At this time, the fixed cutting knife can 90 by the low pressure of the pusher 511 as well as that of spring 96 produced restoring force are held, and it does not need to give the muscle power while permanently to suspend the cutting blade as in the previously known cutting tools.

After the conversion of the cutting tool, that of opening 61 the interchangeable device 60 trained shop windows according to the movement of the interchangeable device 60 preferably also change his position so that the symbol 513 of the affected cutting knife to be used is currently in the shop window det. In other words, the icon displayed in the shop window 513 symbolizes this now from pusher 511 printed, suspended cutting blades. By means of this shop window one can always control the type of cutting blade to be used at any time.

by virtue of the above facts, the invention corresponds in its availability, Progressiveness and novelty fully on the requirements for a utility model.

The The above description represents only the preferred embodiments and should not be considered a definition of boundaries and area serve the invention. All equivalent changes and modifications belong to the scope of this invention.

Claims (14)

Cutting tool for arrangement with a cutting stand 30 for cutting thin leaves 40 , consists essentially of a major part 50 , a removable device 60 , a holder 70 and at least two cutting blades 80 . 90 , where the main part 50 from the cutting stand 30 is worn and can slide on it, and the skin part 50 a pusher 511 for controlling a cutting knife for suspending the cutting blade on the main part 50 having; the interchangeable device 60 on the circumference of the Hauoptteils 50 is arranged and mi in the main part 50 provided bracket 70 is in active compound; the holder 70 a majority of vertical grooves 71 each having for receiving a cutting blade 80 . 90 is used; at least two types of cutting blades to accommodate different knives, thus providing at the top of these blades 80 . 90 one increase each 825 . 96 with curved edge and with dimensions larger than the vertical groove 71 and that is the spring 826 . 97 each at the bottom of these elevations 825 . 96 is arranged; characterized in that the position of the holder by changing the position of the interchangeable device 60 preferably can be moved and the top of the cutting blade 80 . 90 gradually due to such displacement by the pusher 511 Press down to get the knife to the main body 50 auszuseten and around the thin sheet 40 to cut off. Cutting tool according to claim 1, characterized in that the main part 50 consists of two uniform housing and a shell 51 and a lower part 52 includes, wherein the width of the top 51 smaller than the width of the base 52 is. Cutting tool according to claim 2, characterized in that a guide groove 512 at the corresponding position of the upper part 51 is trained and a majority of holes 514 at the guide groove 512 and are respectively arranged according to the positions of the respective cutting blade. Cutting tool according to claim 2, characterized in that a blade access opening 521 at the bottom of the base 52 is provided and a rail 522 each on the two sides of the blade access opening 521 is arranged outstanding. Cutting tool according to claim 2, characterized in that a symbol 513 of the respective cutting blade according to the location of the various cutting blades 80 . 90 on the surface of the top 51 having. Cutting tool according to claim 1 or 5, characterized in that the interchangeable device 60 from two uniform housings on the circumference of the upper part 51 of the main part 50 exists, an opening 61 Having on the surface, and after compilation of the two housings, the above-mentioned opening 61 a shop window can preferably be formed, by which one the selected symbol 513 can take. Cutting tool according to claim 1 or 3, characterized in that the interchangeable device 60 a snapped snap part 62 with a locking projection 621 that is through the guide groove 512 with the bracket 70 is attached, wherein the Arretievorrichtung 621 the hole 514 the guide groove 512 is designed accordingly, which serve as the closure points for Umsetzllung a cutting blade. Cutting tool according to claim 1 or 4, characterized in that the holder 70 consists of two uniform housing and on one side of the bracket 70 at least two vertical grooves 71 for recording cutting blades 80 . 90 that in these grooves 71 can move vertically; that on the other side of the bracket 70 two sliders 74 according to the lower part 52 provided rails 522 are arranged, which can move the cutting blade stable transverse running therethrough. Cutting tool according to claim 1, characterized in that the cutting tool at least one rotatable cutting blade 80 and a fixed cutting knife 90 having. Cutting tool according to claim 10, characterized in that the rotatable cutting blade 80 two sliding walls 81 . 82 includes, at one sliding wall 81 two punctures 811 . 822 and at another sliding gate 82 Locking pin 821 . 822 are attached accordingly; that a wheel axle 823 on the locking pin 822 is arranged and with the center hole of the cam cutter 824 in connection and these parts are formed as a one-piece part, so that the curve cutting knife 824 under support of the locking pin 822 the main part 50 to be able to move. Cutting tool according to claim 10, characterized in that the rotatable cutting blade 80 a cam cutter 824 is. Cutting tool according to claim 10, characterized in that a Ausspaarung 91 with a locking pin 92 on one side of the fixed cutting blade 90 is formed so that a provided with a through hole cutting blade on this locking pin 92 can hang around the suspended cutting blade by an opposing pressure piece 93 in this spin-off 91 to be able to ensure. Cutting tool according to claim 13, characterized in that the fixed cutting blade 90 create a cutting knife 94 or a press brake 95 is. Cutting tool according to claim 1, characterized in that the thin sheet 40 a paper is.