Cutting device for repeatable cutting of flat, card- or plate-shaped raw material for mechanically interlocking mosaics

Abstract

Cutting device for repeatable cutting of flat, card- or plate-shaped raw material for mechanically interlocking mosaics, comprising a top part (1) and a bottom part (2), wherein the lower part (2) has a material receptacle (3) for the surface insertion of a starting material (8), wherein the upper part (1) can be placed on the starting material (8) inserted into the lower part (2), wherein the upper part (1) and the lower part (2) have cooperating positioning elements for precise alignment and securing against slippage, and wherein the lower part (2) has guide grooves (6) and the upper part (1) has guide slots (7) for guiding a cutting tool, characterized in that the guide grooves (6) and the guide slots (7) are arranged such that cutting lines (9) can be produced in the starting material (8), through which material sections with a cutting geometry with tabs and associated slots can be produced from the starting material (8), so that several material sections cut in the same way can be connected to each other purely mechanically without adhesive and can be assembled into a mosaic.

Description

Technical field

[0001] The invention relates to a cutting device for cutting flat, card-shaped, or sheet-shaped starting material. In particular, the invention relates to a cutting device for repeatedly cutting starting material made of cardboard, paperboard, paper composite material, or thin plastic material, for example, thin plastic cards.

[0002] The cutting device serves to cut such raw material with repeatable accuracy so that the cut material sections can be mechanically connected without the use of adhesive and assembled into a mosaic. State of the art

[0003] Cutting devices are known in the art for processing flat materials along predetermined cutting lines. Also known are mosaics or image arrangements in which individual material sections are assembled to form a complete arrangement.

[0004] A disadvantage of known solutions is that they often do not provide a device with which planar, card- or plate-shaped starting material can be cut with repeatable accuracy in such a way that material sections with a cut geometry are created that can be joined together purely mechanically without additional connecting means, in particular without adhesive.

[0005] In particular, there is a lack of an easy-to-use cutting device with which identical material sections can be produced that can be joined together to form a stable mosaic by wedging tabs and associated slots. The problem underlying the invention

[0006] The invention is based on the objective of providing an easy-to-use cutting device with which planar, card-shaped or plate-shaped starting material can be cut with repeatable accuracy, so that identical material sections with a predetermined cutting geometry can be produced.

[0007] Furthermore, the task is to provide a cutting device with which material sections can be produced that can be mechanically connected without the use of adhesive and assembled into a mosaic. Solution to the task

[0008] The problem underlying the invention is solved by a cutting device comprising an upper part (1) and a lower part (2). The lower part (2) has a material receptacle (3) into which a flat, card- or plate-shaped starting material (8) can be inserted. Furthermore, the lower part (2) has guide grooves (6) for guiding a cutting tool, in particular a utility knife.

[0009] The upper part (1) is designed to be placed on the starting material (8) inserted into the lower part (2). Positioning elements (4) are provided on the upper part (1) and corresponding positioning elements (5) are provided on the lower part (2) to ensure precise positioning of the upper part (1) relative to the lower part (2). The interaction of the corresponding positioning elements (4) and (5) secures the upper part (1) against slippage relative to the lower part (2).

[0010] The upper part (1) also has guide slots (7) for the cutting tool. This allows the cutting tool to be guided both along the guide grooves (6) of the lower part (2) and along the guide slots (7) of the upper part (1). This creates defined cutting lines (9).

[0011] The cutting lines (9) produced by the cutting device form a cutting geometry in the starting material (8), resulting in cut material sections with tabs and associated slots. The tabs are preferably designed, at least partially, such that when inserted into associated slots of another similarly cut material section, a positive-locking connection with a wedging effect is created.

[0012] This allows several identically cut material sections to be mechanically joined together and assembled into a mosaic without the use of adhesive. The invention thus enables the repeatable cutting of flat, card-shaped, or plate-shaped starting material (8) with a cutting geometry that creates a stable, self-supporting mosaic structure solely through interlocking and wedging. Brief description of the drawings: • Fig. Figure 1 shows an exploded oblique view of the cutting device with upper and lower parts. • Fig. Figure 2 shows a top view of the lower part. • Fig. Figure 3 shows a top view of the upper part. • Fig. Figure 4 shows a flat, card- or plate-shaped starting material inserted into the lower part with the upper part placed on top. • Fig. Figure 5 shows the cutting lines defined by the cutting device. • Fig. Figure 6 shows the reverse side of a mosaic arrangement of several material sections mechanically connected by interlocking tabs and slots, with the tabs visible. Example of implementation

[0013] In one embodiment, a flat, card- or plate-shaped starting material (8) is first placed into the material holder (3) of the lower part (2). The upper part (1) is then placed onto the starting material (8), with positioning elements on the upper part (4) interacting with corresponding positioning elements on the lower part (5). This ensures that the upper part (1) is precisely aligned and secured against lateral slippage.

[0014] A cutting tool is then guided along the guide grooves (6) and the guide slots (7), thereby creating the intended cutting lines (9) in the starting material (8). The cut material section subsequently has three tabs: one tab for vertical anchoring and two tabs for horizontal anchoring.

[0015] To form a first strip of material, the tab intended for vertical anchoring is inserted into the upper transverse slot of a second cut material section at the top edge of the first cut section. Due to the tab's conical shape, at least in some sections, this creates a wedging effect, mechanically joining the material sections without adhesive. The tab of a third material section then passes through the lower transverse slot of the first and the upper transverse slot of the second, thus connecting the two previous material sections at a second point. In this way, a strip of any length can be mechanically joined together in a first direction.

[0016] To further stabilize the mosaic, another strip of material is inserted from the side into corresponding vertical slots in the first strip. The two tabs on each strip, designed for horizontal anchoring, serve to connect adjacent strips. Specifically, a section of the second strip can simultaneously pass through overlapping slots of two sections of the first strip, thus connecting them.

[0017] The mutual interlocking of the material sections in a first and a second direction running perpendicular to it creates a stable mosaic that is held together solely by form-fitting interlocking and wedging and requires no additional connecting agents, especially no adhesive. Reference symbol list 1 top 2 lower part 3 Material intake 4 positioning elements on the upper part 5 corresponding positioning elements on the lower part 6 guide grooves 7 guide slots 8 Starting material 9 cutting lines

Claims

Cutting device for the repeatable cutting of planar, card- or plate-shaped raw material for mechanically interlocking mosaics, comprising an upper part (1) and a lower part (2), wherein the lower part (2) has a material receptacle (3) for the planar insertion of a raw material (8), wherein the upper part (1) can be placed onto the raw material (8) inserted into the lower part (2), wherein the upper part (1) and the lower part (2) have cooperating positioning elements for precise alignment and securing against slippage, and wherein the lower part (2) has guide grooves (6) and the upper part (1) has guide slots (7) for guiding a cutting tool, characterized in that the guide grooves (6) and the guide slots (7) are arranged such that cutting lines (9) can be produced in the raw material (8), through which material sections with a cutting geometry with tabs and associated slots can be produced from the raw material (8). are,so that several identically cut material sections can be mechanically connected without adhesive and assembled into a mosaic, Cutting device according to claim 1, characterized in that the positioning elements on the upper part (4) are designed as dovetails and the corresponding positioning elements on the lower part (5) are designed as dovetail receptacles. Cutting device according to claim 1 or 2, characterized in that the cutting geometry of the material sections that can be produced from the starting material (8) has three tabs. Cutting device according to claim 3, characterized in that one of the three tabs is designed for vertical anchoring and two tabs are designed for horizontal anchoring. Cutting device according to one of the preceding claims, characterized in that at least one tab is at least partially conical, so that a wedging effect is created when inserted into an associated slot of a further material section. Cutting device according to one of the preceding claims, characterized in that the cutting geometry is designed such that several material sections can be mechanically joined together in a first direction to form a first material strip. Cutting device according to claim 6, characterized in that the cutting geometry is further designed such that a further strip of material can be inserted into slots of the first strip of material in a second direction extending transversely to the first direction. Cutting device according to claim 7, characterized in that a material section of the further material strip simultaneously passes through slots of two material sections of the first material strip and thereby couples them together. Cutting device according to one of the preceding claims, characterized in that the upper part (1) additionally has an outer cutting guide for guiding the cutting tool along an outer edge. Cut-to-size material section made from a planar, card- or plate-shaped starting material for a mechanically pluggable mosaic, characterized in that the material section has a cut geometry with tabs and associated slots, through which the material section can be connected purely mechanically without adhesive to other material sections cut in the same way. Cut-to-size material section according to claim 10, characterized in that the material section has three tabs. Cut-to-size material section according to claim 11, characterized in that one of the three tabs is formed for vertical anchoring and two tabs are formed for horizontal anchoring and that at least one tab is formed at least partially conically. Mosaic arrangement made of several cut material sections, characterized in that the material sections are formed according to one of claims 10 to 12 and are connected to each other purely mechanically without adhesive by interlocking their tabs and slots in a first and in a second direction transverse to this.

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