CH673616A5 - - Google Patents

Description

DESCRIPTION

The invention relates to a slice cutting machine for food according to the preamble of patent claim 1.

Such a disk cutting machine is known from German patent 33 04 274. It is an electric motor-driven household cutting machine with a circular knife, in which the guide surface for the material to be cut is formed horizontally on a slide which can be moved parallel to the knife plane or cutting plane . Due to the tolerances of the housing, the circular knife, its fastening hub of the guides for the slide and the slide, there must be a certain safety distance between the slide and the circular knife in order to prevent the circular knife from cutting into the slide. In unfavorable cases, there is a relatively large distance between the slide and the circular knife, as a result of which the material to be cut is not supported in the cutting area and can be distorted by the rotating knife, or tears out or crumbles at the edges. On the waste side of the knife, i.e. there is no support for the material to be cut on the side on which the cut material is released, so that this e.g. can fall off the device into a bowl underneath. Torn off parts of the material to be cut fall partly in the lower part of the housing, where they are not particularly easy to remove due to its structural design.

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From the German utility model 18 23 793 a hand-operated disk cutting machine with a circular knife is known, in which the guide surface for the material to be cut extends to both sides of the cutting plane or the plane of the knife edge. In the table of the device which has the guide surface, a narrow groove is formed which accommodates the lowermost part of the circular knife, which has the disadvantage of being difficult to clean thoroughly. The arrangement of the guide table on both sides of the cutting plane has the disadvantage that the cut material to be cut remains on the device and cannot immediately fall into a bowl below, which means that the operator has to implement it.

The invention has for its object to provide a disc cutting machine according to the preamble of claim 1, which delivers good cutting results with a simple structure and in particular avoids tearing or warping of the material to be cut.

This object is achieved according to the invention by the features of the characterizing part of patent claim 1. A relatively wide gap can remain between the knife or the supporting rib and the guide surface for the material to be cut, said gap being easy to remove for falling crumbs or other parts of the material to be cut.

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movable carriage and the cutting area of the knife is possible. Overall, larger tolerances can be permitted and thus the manufacturing effort, e.g. can be reduced by simpler guides. The further development according to claim 10 acts in the same direction, whereby tolerance problems can be further reduced by the further development according to claim 11. According to claim 12, the support rib can be used directly to guide the slide.

If the cutting machine has a fixed table with a guide surface and a slidably guided slide with a guide surface that can be optionally arranged above it, the support rib can be height-adjustable so that it lies with its support edge at the level of one or the other guide surface and its protruding described different advantages unfolded. The development according to claim 14 shows how the support rib can be made vertically displaceable in a relatively simple manner. In particular, when using a circular knife, a guideway running along this can be present between two parts of the support rib, so that the support rib remains largely unchanged relative to the knife edge when the height is adjusted. The support rib can be parallel to the cutting plane in two rela-

possible without the cutting result suffering. In particular, 25 disk-shaped parts which can be displaced relative to one another, the guide surface can be arranged on a table of the device which is fixed relative to the cutting area and a lowering of the housing surface serving as a crumb gutter can extend between the table and the cutting plane or the supporting rib. This construction has the advantage of being particularly easy to clean. The groove or depression is preferably so deep that it reaches the lower end of the knife, preferably an approximately vertically extending circular knife. As a result, after removal of the knife from the housing, the entire wall of the motor housing, including its lower regions, which is adjacent to the waste side of the circular knife, is also easily accessible for cleaning.

The development according to claim 4 enables a positioning plate extending below the height of the guide surface, despite the presence of a fixed support rib, to be brought into the zero position and preferably a little further into a position covering the knife edge. The positioning plate expediently extends to below the height of the crumb tray, so that it can be easily guided in guides extending under the crumb tray.

The further development according to claims 5 and 6 serve for easy cleaning of the device and thus its ease of use, since after the knife has been removed there is no narrow gap between a supporting rib and the motor housing of the device which would be more difficult to clean. The further development according to claim 8 also serves for easy cleanability, since after removing or moving far on the positioning plate, the crumb trough is additionally open in its front region on the side facing away from the guide surface, which further facilitates wiping out. The side on which the operator stands and guides the material to be cut away from the knife approximately parallel to the cutting plane is regarded as the front of the device.

The development according to claim 9 has the advantage that the support rib can guide the carriage and can certainly avoid a collision of the carriage and knife and the knife cannot be cut into the carriage. Since the support rib can have smaller tolerances relative to the knife than the movably guided table, smaller distances between the support surface and the cutting area of the knife can be realized than between the guide surface of the be30

can be, wherein the support surface is expediently formed on the movable part and engages over the other.

The development according to claim 15 also gives a simple design in that the lower support rib serves as a holder for the attachable raised support rib. The development according to claim 16 shows how a component that is always left on the device can be used in two positions to form different support rib heights, thereby reducing the risk of losing an accessory and increasing the graspability or availability of the part.

The developments according to claims 17 and 18 have the effect that the supporting rib has a protective function, e.g. when guiding a movable carriage by keeping this carriage away from the knife. The arrangement of the support rib according to claim 19 has the advantage that a narrowing of the crumb trough formed by the support rib is avoided and cleanability is further facilitated. The developments according to claim 20 name advantageous widths of the support rib for good guidance 45 and support of different cut materials.

The supporting rib can be tapered in its front region, over which the positioning plate extends, or have a recess into which the positioning plate engages when it is in its maximally engaged position. This achieves a compromise between good guidance of the material to be cut in the cutting area and, on the other hand, a safe rest position of the positioning plate covering the knife edge, without the positioning plate having to be too thick or bent. As a result, good operational reliability of the device is achieved with relatively little manufacturing effort. Furthermore, deviating from the development according to claim 8, the support rib can be continued up to the front end of the device. On the one hand, this results in good leadership. Furthermore, it can be advantageous to keep the crumb tray closed or U-shaped by the 60 support rib on its side facing the positioning plate, whereby the removal of the crumbs is not made much more difficult, but on the other hand contamination of the guides of the positioning plate is reduced.

65 The invention is explained in more detail below with the aid of schematic drawings of exemplary embodiments. It shows:

Fig. 1 is a perspective view of a Schneidge

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advises with a fixed table and without a sliding carriage from above at an angle, seen from the feed side;

FIG. 2 shows the cutting machine according to FIG. 1 in a perspective illustration, seen obliquely from the top on the take-off side;

Fig. 3 is a partial perspective view of the cutting machine according to Figures 1 and 2 seen from the top left in Fig. 1.

4 shows a section substantially along the line IV-IV in FIGS. 1 or 2 normal to the section plane through the table with an attached slide which is displaceably guided on the table;

5 shows a section corresponding to that of FIG. 3, but seen normal to the sectional plane, a modified embodiment;

6 and FIG. 7 further modified embodiments in sections corresponding to FIG. 4.

The electric motor-driven household cutting machine shown in Figs. 1 to 4 has a front, i.e. seen from the operating side, a total of L-shaped housing 2, which is subdivided into a vertical motor housing 4 and a table 6 adjoining it on the feed side of the material to be cut, with a horizontal guide surface 8 for the material to be cut and guides 10 for a removable, movable carriage 12. On the feed side of the motor housing 4, a circular knife 14 is rotatably mounted in a known manner, the circumferential cutting edge of which lies in a vertical plane, which is referred to below as the cutting plane. On the delivery side, with the exception of a front free area, the circular knife 14 is covered by a knife cover 16 attached to the motor housing 4.

The lowest area of the circular knife 14 is also covered by the knife cover 16, the lower area of which engages in a crumb trough 18 formed between the motor housing 4 and the table 6. The crumb trough 18 has a bottom 20, the surface 22 of which lies below the guide surface 8 of the table 6 and below the lowest point of the cutting edge of the circular knife 14. The crumb tray 18 extends over the entire longitudinal extent of the device from front to back parallel to the cutting plane, so that the waste collecting therein can be easily wiped out at the back or the front.

In front of the circular knife 14, a setting plate 24 extends parallel to the cutting plane, which extends down to below the bottom 20 of the crumb tray 18 and engages in guides (also not shown) in the table 6 by means of guide elements (not shown). An adjusting knob 26 arranged on the front of the table interacts with the guide means of the adjusting plate 24 in order to move it transversely to the cutting plane to adjust the cutting width.

Under the front area of the circular knife 14, i.e. Under the cutting area, in which the circular knife 14 interacts with the material to be cut, a support rib 30 projects vertically upwards from the bottom 20 of the crumb trough 18 parallel to the cutting plane. The support rib 30 has a side surface facing the crumb trough 18 and parallel to the cutting plane, which is approximately 3 mm away from the cutting plane. The section of the support rib 30 that is closer to the knife has a drop-side outer surface 34 that is parallel to the cutting plane and is at a distance of approximately 2 mm from the cutting plane, so that the supporting rib 30 is measured in this area transversely to the cutting plane, approximately 5 mm is thick. The support rib has a support surface 36 lying in the plane of the guide surface 8 of the table 6 at its highest point and, moreover, has seen the shape of a flat, elongated triangle with a normal to the cutting plane

Flattening at the tip, which is formed by the support surface 36. To the rear, the support rib falls off with a surface 38 which falls at a constant distance from the cutting edge of the circular knife 14 to the bottom 20 of the crumb tray 18. Towards the front, the top of the support rib 30 falls off with a ramp surface 40 which adjoins the support surface 36 and leads obliquely downwards to the bottom 20 of the crumb trough 18 and which forms an angle of approximately 33 ° with the guide surface 8 of the table 6. In the area of the ram surface 40, the support rib 30 is made narrower in that it has a lateral recess 42, which extends over its entire height, the delimitation-side boundary surface and the adjoining waste-side edge of the bottom 20 of the crumb trough 18 lying approximately in the knife plane . The setting plate 24 has in its lower edge region a recess 46 for receiving the bottom 20 of the crumb channel 18. The recess 46 merges in its rear region into an obliquely increasing recess 38, which follows the contour of the ramp surface 40, the ramp 2 " 25 in this way it is possible to bring the guide surface 50 of the positioning plate 24 lying above the recesses 46 and 48 beyond the section thickness zero into a position on the feed side of the cutting plane approximately flush with the side surface 32 of the support rib 30 in FIG. 25 for safety reasons, the positioning plate 24 covers the front open area of the cutting edge of the circular knife 14. In FIGS. 1 and 2, the positioning plate 24 is shown in this rest position, which provides a safety overlap, while in the representation according to FIG Housing 2 is shown, which corresponds to a small section thickness setting.

To operate the device according to FIGS. 1 to 3, the user sets the desired cutting width on the handle 26 by adjusting the setting plate 24. Then he guides the material to be cut on the guide surface 8 of the table 6 and in contact with the surface 50 of the positioning plate 24 from front to back, i.e. in Figures 1 and 3 from left to right to the circular knife 14 and past it. In the cutting area of the knife 14, the material to be cut 40 is supported on the support surface 36 of the support rib 30, with any material to be cut hanging down on the side of the guide surface 8 of the table 6 being lifted onto the support surface 36 by the ramp surface 40. The circular knife 14 separates a disk that falls down from the device on the waste side of the 45 motor housing 4 or the circular knife 14 that can be seen in FIG. 2.

In a modification of the illustrated embodiment, the support surface 36 can extend slightly further forward from the cutting edge of the circular knife 14 to approximately below the most forwardly projecting part of the circular knife 14, the ramp surface 40 being offset a corresponding distance to the front. According to a further modification, the ramp surface 40 can also be omitted and the support rib 30 extends at the height of the support surface 36 to the front end 55 of the table 6.

This ensures that the material to be cut is already supported at the moment when the circular knife cuts into a material to be cut that protrudes up to the height or beyond the axis of rotation of the circular knife. Most important, however, is the support in the lower area, which is already achieved by the short, illustrated support surface 36, since this in particular prevents the underside of the cut material from being torn out when it is in contact with the surface 6 65 of the table 6 directly above the plane of the guide surface lying area of the knife cooperates.

FIG. 4 shows the cutting machine according to FIGS. 1 to 3 with a carriage 12 placed over the table 6. The table 12 has a table top 60 which is at a distance from the

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cutting plane defined by the cutting edge 15 of the circular knife 14 ends and the top side thereof serves as a guide surface 62 for the material to be cut. The table has a downwardly directed side wall 64 on the feed side with a guide projection 66 directed against the circular knife 14, which engages in a guide groove 10 formed on the table 6 on the feed side. Furthermore, the table 12 has a support rib 68 which extends downward in the region of the edge of the table 6 adjacent to the circular knife 14 and has a guide recess 70 which cooperates with this edge. An elevation support rib 72 is placed over the support rib 30, which is supported on the support surface 36, the side surface 32 and with a support foot 74 in the lower corner of the crumb tray 18 remote from the circular knife 14. The elevation support rib 72 is measured normal to the cutting plane, narrower than the support rib 30 and extends at a small distance on the feed side from the cutting plane or knife edge 15. The elevation support rib 72 extends rearward to approximately the knife cover 16 and somewhat to the front rib 572 serves. The elevation support rib 572, seen normal to the sectional plane, has a profile which corresponds approximately to that of the support rib 30 of the embodiment according to FIGS. 1 to 4 and below its cover-side surfaces on the feed side has a flat recess 574 which can completely accommodate the guide part 531 . The guide part 531 has essentially the same contour as the riser support rib 572, but is of somewhat lower design and lies with its upper edge below the plane of the guide surface 508 of the Ti-10 cal 506. The top surface of the riser support rib 572 extends, just as with the support rib 32 according to FIGS. 1 to 4 through the section plane and has a front inclined ramp surface 540 which merges via a flat rounded support surface 536 into a surface 538 falling along the knife.

The elevation support rib 572 is shown in FIGS. 5 and 6 in its raised position, a sliding carriage 512 being placed and guided on the table 506 with a cover plate 560, which has a guide surface on the cover side.

farther than the support rib 72 to about the knife cover 16 20 che 562 for the material to be cut. In the raised position

and forward a little further than the support rib 30 and has in its front area approximately to the front end of the ramp surface 40 and is secured by the triangular shape of the support rib 30 against displacements parallel to the cutting plane. The elevation support rib 72 has on its upper side a support surface 76 which lies in one plane with the guide surface 62 of the table 12. The support surface 76 extends rearwards to the knife cover 16 and forwards approximately to the area of the lower end of the ram surface 40 of the support rib 30 and itself has only a short, flat, sloping ramp surface or bevel at its front end to catch the material to be cut to avoid it. The elevation support rib 72 does not require a long ramp area, since its support area 76 runs very close to the guide surface 62 of the table 12 and the material to be cut cannot therefore sink significantly.

In a modification of the embodiment of the carriage 12 and the elevation support rib 72 shown in FIG. 4, an elevation support rib can extend from the front end to the rear end of the device or over a substantial part of this length. In this case, a downwardly projecting rib is formed under the cover plate of the slide, which engages in a guide groove of the elevation support rib 72 lying under the cover plate. A support rib corresponding to the support rib 68 and assuming support on the table 6 is dispensed with and the guide on the side of the table facing away from the circular knife in this case does not offer a lateral guide, but only a height support. The elevation support rib can also bear against the circular knife with a slight pretension, as a result of which an even better tolerance compensation is achieved, in particular if the slide is guided in a lateral direction on this elevation support rib. So that the crumb trough 18 can continue to perform its function even when working with a slide and a riser support rib, the riser support rib can have openings which are designed such that the crumbs fall through.

5 has a housing 502 with a vertically extending motor housing 504 'and lung, the support surface 536 of the riser rib 572 is in one plane with the guide surface 562 of the table 512, which otherwise largely covers the crumb trough 518 and up to close to the riser support rib 572 forth-25. 5, the heights of the guide surface 508 of the table 506 and the guide surface 562 of the carriage 512 are indicated by correspondingly designated, broken lines. The elevation support rib 572 has an arcuate elongated hole 580 which is guided in a circular arc around the center point of the circular knife. A locking screw 582 is screwed through the elongated hole 580 into a threaded bore 58 of the guide rib 531. After loosening this screw by means of its knurled grip part, the elevation support rib 572 can be shifted in height in an arc around the center point of the circular knife 514, an edge section 586 overlapping the recess 574 and having the cover surface section 538 providing guidance on a corresponding underlying guide edge 588 the guide rib 531 takes over. By screwing in and tightening the screw 582, the elevation support rib 572 is fixed in its upper position or in its upper position or in its lower position, in which the support surface 536 is at the level of the guide surface 508 of the table 506.

45 In the modified embodiment according to FIG. 7, a housing 702 has a motor housing 704 with a round knife 715 mounted thereon on the feed side and a table extending horizontally therefrom with a guide surface 708. A carriage 50 712 with a guide surface 762 is slidably guided on the table. Between the table 706 and the circular knife 712 there extends a crumb trough 718 with a lowered, horizontal floor 720. Adjacent to the cutting plane, two guide 55 pins 780 project upwards from the floor 720 at a distance parallel to the cutting plane, onto which a support rib 730 can be attached . The circular knife 715 has no knife cover and the support rib extends with its entire width on the feed side of the cutting plane and at a short distance from it and engages from below in the position shown, extending L-shaped from the front 60 between the carriages 712 and the circular knife 715 and the table 506 with a guide groove 510 in its side facing away from the circular knife 514. The table has a guide surface 508 on the cover side, to which a crumb trough 518 with a lowered bottom 520 adjoins the circular knife 516. A guide part 531 of a support rib 530 extends upward from the floor 520, the drop-side surface of which extends in the cutting plane and acts as a guide for a height-adjustable support support.

has a support surface 736 on the top side, which lies in the plane of the guide surface 762 of the carriage 712. To use the device without the carriage 712 with guidance of the material to be cut on the guide surface 708 of the table 706 65, the support rib 730 is lifted off the guide pins 780 and swiveled by 90 ° clockwise, the raised part 782 which can be used with the carriage Crumb channel 718 comes to rest and is in interrupted

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Lines 784 drawn guide openings in this position on the guide pins 780, a low support rib 730 extending at right angles to the elevated support rib 782 now projecting upwards and with its support surface 736 lying at the level of the guide surface 708 of the table 706. The lower support rib 730 extends at right angles to the raised support rib 782 and is formed in one piece therewith and, when the raised support rib 782 is used, stands away from the housing on the drop side, as shown. The short support rib 730 is designed to correspond approximately to the support rib 30 of the embodiment according to FIGS. 1 to 4 in the direction of extension from front to rear, so that it hardly hinders the falling of the material to be cut in this position. In order to further reduce such an obstacle to the falling of the material to be cut, the openings 784 can be formed in the support rib 730 in such a way that, when the slide 712 is used and the raised part 782 is used, the short, low support rib moves away from the cutting area, preferably into the area the positioning plate, where it does not prevent, is offset. The carriage 712 can have a guide rib tapering downwards on the underside of the edge region facing the circular knife 5,514, as indicated by the broken lines 790. This can engage in a guide groove on the support rib 782 indicated by the lines 792. The support of the slide on the edge of the table 506 facing the measuring sensor 514 can be omitted in this case.

A support rib extending along the feed side of the knife can be hinged to the feed side on the housing in order to make it easier to remove the knife and 15 to clean the area behind it. Such a support rib can be locked in the operating position and can be folded into the crumb tray.

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3 sheets of drawings

Claims (21)

673 616 PATENT CLAIMS 1. Slice cutting machine for foodstuffs, in particular an electric motor-driven household cutting machine, with a knife and a guide surface for the material to be cut extending transversely thereto, the guide surface at a distance above the device base on one side of the cutting plane of the knife on the material supply side is arranged and ends at a distance from the cutting plane of the knife and the cut material falls down on the waste side of the knife, characterized in that next to the guide surface (8, 62; 508, 562; 708, 762) adjacent to the cutting area of the knife (14; 514; 715) a support rib (30, 72; 530; 730) is arranged which has a support surface (36, 76; 536) lying approximately in the plane of the guide surface (8, 62; 608, 562; 708, 762) ; 736, 736 ') for the material to be cut. 2. Cutting machine according to claim 1, characterized in that the guide surface (8; 508; 708) is arranged on a table (6; 506; 706) of the device which is fixed relative to the cutting area and is between the table and the cutting plane or the supporting rib (30; 530; 730) extends as a crumb trap (18; 518; 718) lowering. 3. Cutting machine according to claim 1 or 2, characterized in that the crumb collecting channel (18; 518; 718) between the one hand the positioning plate (24), the support rib (30; 530; 730 ') and the knife (14; 514; 715 ) and on the other hand extends the table (6; 506; 706). 4. Cutting machine according to one of claims 1 to 3, with a cutting plate parallel to the cutting plane, which is displaceable to adjust the cutting width transversely to the cutting plane, characterized in that the cutting plate (24) extends below the height of the guide surface (8) and has a recess (48) for at least partially receiving the support rib (30). 5. Cutting machine according to one of claims 1 to 4, characterized in that the supporting rib (30; 530) ends in front of the cutting edge (15; 515) of the knife (14; 514). 6. Cutting machine according to claim 5, characterized in that the knife is a circular knife (14; 514) and the support rib (30; 530) following the contour of the circular knife, falls backwards. 7. Cutting machine according to one of claims 1 to 6, characterized in that the support rib (30; 530; 730) extends with its longitudinal extension parallel to the cutting plane. 8. Cutting machine according to one of claims 1 to 7, characterized in that the support rib (30; 530; 730 ') is arranged at a distance from the front end of the guide surface (8; 508; 708') and one of the support surface (36; 536; 736 ') has a ramp-like section (40; 540). 9. Cutting machine according to one of claims 1 to 8, characterized in that the guide surface is formed on a slide (12; 512; 712) which is guided parallel to the cutting plane and relative to the cutting area and the support rib. 10. Cutting machine according to one of claims 1 to 9, characterized in that the supporting rib (72; 782) is fixed relative to the cutting area and extends at least in part between the knife (14; 715) and the displaceable carriage (12; 712). 11. Cutting machine according to one of claims 1 to 10, characterized in that the support rib is supported on the knife. 12. Cutting machine according to one of claims 1 to 11, characterized in that the support rib serves as a guide for the carriage. 13. Cutting machine according to one of claims 1 to 12 with a fixed table and an optionally arranged, slidably guided carriage, characterized in that the support rib (30, 72; 530; 730) 5 is changeable. 14. Cutting machine according to claim 13, characterized in that at least a part (572) of the support rib (530) is vertically displaceable. 15. Cutting machine according to claim 13, thereby 10 indicates that a table (6) fixed to the device assigned lower support rib (30) a higher support rib (72) assigned to the slide can be placed. 16. Cutting machine according to claim 13, characterized in that on a bar easily detachable from the device 15 (730) two support ribs (782, 830 ') are formed, which can be moved, e.g. Turning the bar (730) can be brought alternately into their operating position. 17. Cutting machine according to one of claims 1 to 16, characterized in that a support surface (36; 536) 20 of the support rib (30; 530) extends on both sides of the cutting plane. 18. Cutting machine according to one of claims 1 to 16, characterized in that the support rib (72, 730) with its support surface (76; 736) completely on the feed side of the 25 cutting plane is arranged. 19. Cutting machine according to one of claims 1 to 16, characterized in that the support rib is completely eroded on the drop side of the cutting plane. 20. Cutting machine according to one of claims 1 to 30 19, characterized in that the support surface of the support rib measured normal to the cutting plane has a width of about 1 to 10 mm, preferably 2 to 7 mm and in particular about 5 mm. 21. Cutting machine according to one of claims 1 to 17 35 or 20, characterized in that the supporting surface of the Support rib extends in front of the knife on both sides of the cutting plane and additionally on the side of the knife on one or on both sides of the cutting plane, at least a piece extends backwards along the knife.