EP2708336A1 - Device for cutting bread into slices - Google Patents

Abstract

The device (1) has a cutting device provided with a rocker (9). A rotatable drive circle knife (11) rotates around a rotational axis (8) of the rocker. A feed device places a bread loaf in an inlaid region (2) of the cutting device. An end of the bread loaf is fixed with the cutting device. The rotatable drive circle knife is arranged in an inner space rocker housing, where thickness of the rocker housing is greater than 15 mm. The rocker housing and the circle knife are overlapped in a thickening region.

Description

introduction

• a) einem Einlegebereich, in den ein Brotlaib einlegbar ist,
• b) einer Schneideinrichtung, die eine um eine erste Drehachse drehbare Schwinge und ein an der Schwinge um eine zweite Drehachse rotierbar gelagertes Kreismesser aufweist, wobei die zweite Drehachse sich innerhalb eines Schneidquerschnitts bewegt,
• c) einer Vorschubeinrichtung, mit der ein in dem Einlegebereich befindlicher Brotlaib so auf die Schneideinrichtung zu vorschiebbar ist, dass an einem vorderen Ende des Brotlaibs von diesem mittels der Schneideinrichtung sukzessive Scheiben abschneidbar sind,
• d) einem Entnahmebereich, in dem die abgeschnittenen Scheiben aufnehmbar sind,
• e) einer in einem Innenraum eines Schwingengehäuses angeordneten Übertragungseinrichtung zum Antrieb des Kreismessers, wobei das Schwingengehäuse in einem der ersten Drehachse abgewandten Ende in einem senkrecht zu einer Ebene des Kreismessers orientierten Längsschnitt keilförmig ausläuft.

The invention relates to a device for sliced bread with

• a) a loading area into which a loaf of bread can be placed,
• b) a cutting device which has a rocker rotatable about a first axis of rotation and a circular blade rotatably mounted on the rocker about a second axis of rotation, wherein the second axis of rotation moves within a cutting cross-section,
• c) a feed device with which a loaf of loafs located in the infeed area can be advanced toward the cutting device in such a way that successive slices can be cut off from the latter at a front end of the loaf of bread by means of the cutting device,
• d) a removal area in which the cut-off discs can be received,
• e) a arranged in an interior of a rocker housing transmission device for driving the circular blade, wherein the rocker housing terminates in a wedge-shaped in an oriented perpendicular to a plane of the circular blade longitudinal end in a first axis of rotation away from the end.

State of the art

The devices described above are most commonly used in bakeries when a customer wishes to have their sliced bread sliced when buying a loaf of bread. In machines that are placed on the floor, the rocker usually performs a circumferential rotational movement, in which case usually the circular blade has such a size that it penetrates only less than half of its cross-sectional area in the cross section of the loaf, so that the rocker even the cutting cross section does not go through at all. Such a cutting machine is for example from the DE 103 12 301 A1 known. Other devices of the type described above are beyond the documents DE 37 06 485 A1 . DE 10 2005 062 501 A1 and DE 198 20 004 A1 removable.

If such provided with an orbital knife drive bread cutting machines designed as table machines, the rocker performs only a swinging motion, that is, it does not rotate by 360 degrees, but oscillates only by an angular range of less than 90 degrees. In this way, the height can be reduced and the suitability of the machine for installation on a table can be achieved. Further, in order to reduce the size in these cases, the diameter of the circular blade is reduced, which requires that the axis of rotation of the circular blade move within the circular cross section, that is, the rocker penetrates into the loaf during the cutting process.

In this case, special measures are to be taken so that no damage to the bread during the cutting process occurs due to the increased thickness of the rocker compared to the pure circular blade thickness. In addition, the cutting gap between the insertion area and the removal area has a comparatively large width, which results in a risk that windows that are just emerging or cut off are pulled through the gap into the interior of the machine.

Table machines of the type described above are for example from the DE 37 06 485 A1 and the DE 1 982 049 2C1 known.

The problem of penetrating into the cutting cross-section thickened rocker area has always been attempted in the prior art, that the rocker housing - viewed in a direction perpendicular to the circular knife plane narrower, that is flat and the wedge angle was chosen smaller at the end of the rocker housing. In addition, an attempt was made to reduce the measured in the direction parallel to the circular blade level width of the rocker, in order to reduce the swing housing in order to penetrate as possible over a large proportion of the circular blade surface with the very small thickness of the circular blade in the loaf can , However, slicing of fresh and soft breads (e.g., white bread) as well as the production of slices of small thickness (6mm and less) in the prior art machines presents difficulties manifesting in slicing of the slices or irreversible crushing.

task

The invention has for its object to further develop a device for slicing bread into slices in that the cutting result is improved in qualitative terms, even with fresh breads and in the production of thin slices.

solution

Starting from a device of the type described above, the above object is achieved in that in a thickening region in which the rocker housing and the circular blade overlap, measured perpendicular to the plane of the circular blade thickness of the rocker housing greater than 15 mm, preferably greater than 18 mm, more preferably greater than 20 mm.

The "thickness of the rocker housing" within the meaning of the present application is understood without the thickness of the circular blade, which adjoins this on the side facing the insertion area of the rocker housing.

Contrary to the decade-long trend in table machines with oscillating back and forth moving rocker to reduce the thickness of the swingarm housing as far as possible, the invention takes exactly the opposite path of a deliberate increase in the thickness of the swingarm housing. This teaching is based on the finding that with an increased thickness of the rocker housing two positive effects are associated with the cutting result: Firstly, the increased thickness of the rocker housing leads to a greater deflection, ie bending of the emerging disc from the rest of the loaf. This in turn causes on the one hand a bending stress in the region of the slice of bread which is located between the swinging casing area with the greatest thickness and the cutting edge of the circular knife, that is to say the area in which the emerging slice and the remaining loaf are "just so" connected are. The aforementioned increased bending stress attempts to open the cutting gap created by the circular blade, that is, facilitates the cutting operation of the circular blade. On the other hand, the increased deflection and deflection of the emerging disc also leads to a reduced adhesion of the circular blade facing the disc surface on the circular blade.

Optimal in this context is even the generation of a deliberate distance between the surface of the blade facing the knife surface and the disc itself in a region between the cutting edge and the rocker housing portion with the largest thickness. Due to such a distance between the disc and blade or at least due to the reduced contact pressure in this area, the friction is reduced and reduces the risk of unwanted disc deformation or damage.

Further, an increased deflection of the disc away from the knife into the removal area results in that between the insertion area and the Removal range resulting cutting gap, which is usually covered by a movable support member is bridged earlier and safer, so that the bottom of the removal area itself can take over the support function for the cut disc. The risk that an emerging or just cut disc is involuntarily drawn into an interior of the machine housing, can be significantly reduced in this way.

Even with the inventively enlarged thickness of the rocker housing, it has been found to be advantageous to choose a wedge angle of the wedge-shaped end in longitudinal section of the rocker housing between 10 ° and 30 °, preferably between 15 ° and 25 °. Such a comparatively small wedge angle, in conjunction with the larger housing thickness, leads to a reduction in the risk that the resulting target may be too strongly deflected or pinched at certain points, thereby possibly damaging its integrity or structural properties.

A particularly advantageous geometry of the rocker housing is that its contemplated longitudinal section has first a wedge-shaped section, then in a thickening region a section of maximum constant thickness and then a section of reduced thickness, which may extend up to the first axis of rotation, wherein preferably the maximum thickness in the thickening region is at least 120%, preferably at least 140% of the thickness in the region of reduced thickness.

The reduction of the thickness adjacent to the thickening area has the advantage that the cutting gap located between the insert area and the removal area can be kept smaller than would be the case if the swing housing still passes through the cutting gap to its maximum thickness possessed. In order to achieve the deflection effect described above, it is sufficient if the maximum thickness is present in the region which passes through the maximum cutting cross-section during the swinging motion and accordingly can exert an effect on the slices to be cut off there. In this context, according to one embodiment of the invention, it is provided that the thickening area is located exclusively above the cutting gap between the loading area and the removal area during the entire movement of the rocker. A reduction of the gap area, which is made possible by the section of the rocker with reduced thickness, is advantageous in that the necessary closure of the gap with a support element becomes easier.

According to one embodiment of the invention, a transition between the portion of maximum thickness is arranged to the portion of reduced thickness between the second axis of rotation and the first axis of rotation facing portion of the cutting edge of the circular blade. In this case, the aforementioned transition preferably has a distance from the second axis of rotation, which is 25% to 50% of the radius of the circular blade. The thickening area is thus spatially limited to a range necessary to achieve the desired enhancement of the deflection effect.

Starting from such a device, in addition to that according to the type described above, the swing housing, at least in a cover area which is within an overlapping area with the circular blade, has a distance from a cutting edge of the circular blade, which is smaller than a difference between a Radius of the circular blade and a half minimum width of the rocker in a region which, viewed from the first axis of rotation, this side of the second axis of rotation, but in the overlapping region with the circular blade, the object underlying the invention is also achieved by in that a distance between a preferably circular outer edge of the covering area and the cutting edge of the circular blade is not more than 25 mm, preferably not more than 20 mm, more preferably not more than 15 mm.

Again, the teachings of the present invention conflict with the development of the prior art devices: the rocker housing is dimensionally increased in area, according to the invention, in a direction that approaches itself with respect to the oscillating motion of the rocker a "front side" of the rocker is located, that is, the side that penetrates in the "outward movement" of the rocker first in the cross section of the loaf, whereas in the subsequent "motion" the rocker only passes through the cutting cross section in the manner of a Leerhubs without the circular knife being engaged with the bread.

The creation of the enlarged covering area according to the invention, which as a result produces the specified small distance between its outer edge and the cutting edge of the knife, leads to the blade surface being free at the "front side" of the rocker arm or rocker arm (in a viewing direction perpendicular to the circular blade plane) Circular knife is greatly reduced, so that in this area the cut discs can not adhere to the circular blade. The invention is based on the recognition that contact with the side surface of the circular blade is avoided as far as possible, since the frictional forces induced by such a contact have a negative effect on the cutting result. This is mainly due to the fact that the Rotates circular blade with very high speed and thus large lateral forces, that is, forces parallel to the circular blade level, can initiate in the emerging or just cut discs. According to the invention, the reduced contact surface with the knife side surface is paid for by an enlarged contact surface between the rocker housing and the just emerging disk. However, contact in this area is less critical than in the area of the knife side face, since the rocker only moves at a much slower speed through the cutting cross section than the knife side face, and therefore the undesirable frictional drag effect around the rocker is much smaller and therefore acceptable ,

According to one embodiment of the invention, it is provided that the covering area in a view perpendicular to the plane of the circular blade has the shape of a circular ring, which preferably extends over an angular range between 70 ° and 110 °, preferably between 80 ° and 100 °. The circular ring shape makes sense, since according to the prior art, the free circular blade surface also has the shape of a circular ring. This is now preferably covered according to the invention only in the angular range defined above, since this is sufficient to prevent contact between the resulting disc and the circular knife side surface.

Further, it is advantageous if a central axis of the cover, viewed in turn in a view perpendicular to the circular knife plane, at an angle β to a longitudinal axis of the rocker, which is between 110 ° and 150 °, preferably between 120 ° and 140 °. In the usual position of the first axis of rotation with respect to the cutting cross-section, this corresponds to the "front" portion of the circular blade with which this penetrates first into the loaf of bread.

embodiment

Fig. 1:

Eine perspektivische Darstellung einer erfindungsgemäßen Vorrichtung mit Blick auf die Schwinge nach Demontage des Entnahmebereichs,

Fig. 2:

eine Draufsicht auf die Vorrichtung mit Darstellung sowohl des Einlegebereichs als auch des Entnahmebereichs,

Fig. 3:

einen Vertikalschnitt durch die Vorrichtung mit Blickrichtung von der Rückseite,

Fig. 4:

einen Vertikalschnitt durch die Vorrichtung mit Blickrichtung von der Vorderseite,

Fig. 5:

einen Vertikalschnitt durch die Vorrichtung mit Blickrichtung von dem Entnahmebereich her,

Fig. 6a bis 6c:

die Schwinge in einer Draufsicht, Seitenansicht sowie perspektivischen Ansicht,

Fig. 7:

eine Detailansicht der Schwinge in einer Ecke des Entnahmebereichs,

Fig. 8:

einen Vertikalschnitt durch einen Boden des Entnahmebereichs sowie durch ein Stützelement,

Fig. 9:

wie Figur 8, jedoch in einer um 90° gedrehten Ansicht,

Fig. 10:

eine perspektivische Ansicht des Bodens des Entnahmebereichs sowie der daran befestigten Stützeinrichtung,

Fig. 11 bis 13:

unterschiedliche perspektivische Ansichten der durch die Schwinge verformten Stützeinrichtung.

The invention will be explained in more detail with reference to an embodiment of a cutting device, which is shown in the drawing. It shows:

Fig. 1:

A perspective view of a device according to the invention with a view of the rocker after disassembly of the removal area,

Fig. 2:

a top view of the device with representation of both the loading area and the removal area,

3:

a vertical section through the device viewed from the back,

4:

a vertical section through the device viewed from the front,

Fig. 5:

a vertical section through the device as seen from the removal area,

6a to 6c:

the rocker in a top view, side view and perspective view,

Fig. 7:

a detail view of the rocker in a corner of the removal area,

Fig. 8:

a vertical section through a bottom of the removal area and by a support element,

Fig. 9:

as FIG. 8 but in a 90 ° rotated view,

Fig. 10:

a perspective view of the bottom of the removal area and the support means attached thereto,

11 to 13:

different perspective views of the deformed by the rocker support.

One in the FIGS. 1 to 5 In various views illustrated device 1 for slicing bread into slices, has an insertion area 2 in the form of an approximately cubic shaft into which a loaf of conventional dimensions can be inserted. Within the insertion area 2 there is a known from the prior art feed device 3, which via a gripping device with gripper hook for fixing a rear end of the loaf, a linear guide for advancing the fixed loaf of bread along a bottom 4 of the loading area 2 and a drive means, not shown both for the feed and for fixing the gripper hook has.

Furthermore, the device 1 has a shaft-like removal area 5, which, viewed in the feed direction 6 , is located linearly adjacent to the insertion area and is separated therefrom by a cutting device 7 .

The cutting device 7 has a rocker 9 which is oscillatably mounted so as to oscillate in a manner oscillating about a first axis of rotation 8 and on which a circular blade 11 which can be driven rotationally about a second axis of rotation 10 is mounted. The drive for the oscillating movement of the rocker 9 and for the continuous rotation of the circular blade 11 relative to the rocker 9 take place by means of a common drive device 12, which consists of the vertical section in FIG. 3 can be seen and is arranged below the bottom 4 of the insertion area 2 . The rocker 9 has a rocker housing 13, in which in the figures invisible interior is a transmission device in the form of a belt drive to drive the circular blade 11 is located. Such a drive device 12 both to drive the rocker 9 and the circular blade 11 is for example from the DE 37 06 485 A1 known.

In an interior of a rocker housing 13 is a transmission device in the form of a belt drive, which provides regardless of the state of motion of the rocker 9 even in the cutting operation of the device 1 for a uniform rotational movement of the circular blade at high speed.

The rocker 9 and the rocker housing 13 are in the FIGS. 6a to 6c explained in more detail. Out FIG. 6b shows that the rocker housing in a thickening region 14 has a conspicuously large, measured in the direction of the axis of rotation 10 of the circular blade 11 thickness 15 , which is 23 mm in the specific case. Considering the contour of the rocker, starting from a tip 15 ' , on which a longitudinal section plane intersects the peripheral edge of the rocker housing 13 , this first has a wedge-shaped portion 16 , followed by a section of constant thickness, which forms the thickening region 14 , This is followed, behind a transition 17 in the form of a recess, by a section 18 of reduced thickness, which in the present case is 16.5 mm. The distance 19 of the transition 17 between the reduced thickness portion 18 of the thickening portion 14 is about 40% of the radius of the circular blade.

As turn out in particular from FIG. 6b shows, the thickness 15 in the thickening region 14 is significantly larger (6.5 mm in the present case) than would actually be required to cover the transmission device located in the interior of the rocker housing 13 . The minimum required thickness 20 is present in the region 18 of reduced thickness and, as already mentioned above, is 16.5 mm. At this distance from the in FIG. 6b left side of the rocker housing 13 is an imaginary line 21 is shown in dashed form. Right of this line 21 is located within the rocker housing 13, a free space 22, which was created solely to achieve in conjunction with the wedge-shaped portion 16, the increased thickness 15 of the rocker housing 13 and thus to achieve particularly good cutting properties. To keep the oscillating moving mass of the rocker arm 9, wherein the swing of the housing 13 is received, small, the clearance 22 should remain hollow.

With view on FIGS. 6a and 6c It is clear that the rocker housing 13 in a circular cover area 23 aware of a much larger radius 24th has, as in a region adjacent thereto, in which the radius 25 - is sized so that the transfer means is completely covered inside the swing frame 13 to form a wedge-shaped section - as is customary in the art. Through the creation of the cover 23, a free, non-covered area 26 is greatly reduced between the cutting edge 27 of the circular blade 11 and the part-circular outer edge 28 of the swing body 13 in the covering 23rd This in turn leads to a significantly reduced friction between the rapidly rotating circular blade 11 and the just emerging bread slice, so that the force effects on the disc and the risk of damage to the same are minimized.

In other words, a radially measured distance 36 between the edge 28 of the rocker housing 13 in the cover area 23 and the cutting edge 27 of the circular blade 11 in the cover area 23 is smaller than a difference between a radius 30 of the circular blade 11 and a minimum half width 31 of the rocker housing 13 within an overlapping area of the swing casing 13 with the circular blade 11. Actually there would namely by the procedure according to the prior art no need to vibrate the housing 13 through the swing width dimension defined by the addition, to enlarge. However, this has proven to be extremely effective in minimizing friction and improving cutting quality.

Out FIG. 6a can be seen that the approximately hammerhead-shaped cover portion 23 extends over an angular range 32 of about 140 °. A core portion of the cover 23, in which the radius 24 has its greatest extent and is constant, extends over an angle 33 of approximately 90 °. A central axis 34 of the cover portion 23 extends at an angle to a longitudinal axis 35 of the rocker 9, which connects the two axes of rotation 8 and 10 with each other. The angle here is around 130 °. In the present case, the distance 36 between the radius 30 of the circular blade 11 and the radius 24 in the cover region 23 is about 14 mm.

From the FIGS. 11 to 13 , which show different perspective illustrations of the rocker 9 , it can be seen that between the bottom 4 of the insertion area 2 and a bottom 37 of the removal region 5, a cutting gap 38 is formed, through which both the rocker 9 with its rocker housing 13 and the circular blade 11th pass through. While the circular blade 11 is located at a very small distance from a front edge 39 of the bottom 4 of the insertion region 2 , so that the front edge 39 serves as a counter-blade, the distance to a front edge 40 of the bottom 37 of the removal region 5 is much greater due to the cutting gap 38 .

In order to eliminate the risk that in the gap region 38 during the cutting of a disc or immediately thereafter a disc due to the rotation of the circular blade 11, whose direction of rotation is illustrated by an arrow 41 , pulled in, the cutting gap 38, starting from the bottom 37 of Removal area 5 closed by a support member 42 . The support member 42 has the shape of a over the entire width of the removal region 5 (and even beyond) extending bar made of a food-safe, elastic plastic material and is fastened in a manner explained in more detail later on the underside of the bottom 37 of the removal region 5 .

From the FIGS. 11 to 13 It can be seen that the support element 42 has such a distance from the front edge 39 of the bottom 4 of the insertion area 2 , that it leaves a sufficient clearance for the circular blade 11 even in a straight line stretched state. Therefore, a collision between the circular blade 11 and the support element 42 can not occur under any circumstances. By contrast, the thickness 20 of the rocker housing 13 in the region 18 of reduced thickness (see FIGS. 6b and 6c ) larger than the remaining space between the support member 42 and the front edge 39 of the bottom 4 of the insertion area 2. For this reason, the support member 42 deformed by the rocker housing 13 in this section 18, the right and left adjacent each in a wedge-shaped area 43rd expires 44, in accordance with the swing motion in the cutting gap 38. in the section 18, in which the thickness is thus greater than the edges of the swing frame 13, the elastic deformation of the support member 42 is maximum. There it comes to an approximately vertical curvature of the free edge of the support member 42, which thus includes at this point approximately a right angle with the bottom 37 of the removal region 5 . Due to the oscillating movement of the rocker 9 , the deformed portion of the support member 32 as described above moves continuously along the length of the support member 42 from one end to the other end thereof. In the FIGS. 11 to 13 a middle position of the rocker 9 is shown, in which the circular blade 11 has a distance from both a side wall 45 and a side wall 46 each of the insertion area 2 . The bead-shaped bulge of the serving as a kind of sealing lip support member 42 thus migrates continuously along the width of the removal region 5 back and forth.

In the undeformed, approximately parallel to the bottom 37 of the removal region aligned portions of the support member, this is in a support position in which it prevents the currently emerging discs can get into a machine interior located below the support member 42 . Starting from this support position, the support member 42 by the rocker 9, by the frictional contact with the surface of the rocker housing 13 and the resulting normal forces, displaced in a release position, so that the rocker 9 can perform their oscillating movement. In the release position, the support member 42 is subjected to bending and resiliently biased so that it automatically returns to the support position in the course of a continued movement of the rocker 9 as soon as the previously occupied by the rocker housing 13 space was released in the cutting gap 38 at the appropriate location again ,

FIG. 7 shows in a detailed view that the rocker 9 extends with the overlap region 23 to a small front part in a gap between the side wall 45 of the insertion region 2 and an opposite side wall 47 of the removal region 5 inside. The same applies, of course, to the cutting edge 27 of the circular blade 11, which protrudes radially further outwards by a small amount. In this way, it is ensured that even in a corner region 48 of the insertion region 2 an optimal cutting of the discs in the sense of a complete and clean separation of the remaining loaf is ensured. The overlapping region 23 of the rocker housing 13 also extends with a small part below the bottom 4 of the insertion area 2, so that even with a cutting in the corner area 48 a very far reaching coverage of the relevant sector of the side surface of the circular blade 11 is given, even taking into account a certain height offset between the bottom 4 of the insertion region 2 and the bottom 37 of the removal region 5 (see in particular in FIG. 11 ). Out FIG. 11 It can also be seen that the oscillating housing 13 interacts with its support member 42 during its oscillating movement through the cutting gap 38 with only its portion 18 having reduced thickness (compared to the thickening area 14) .

The attachment of the support member 42 results from the FIGS. 8 to 10 It can be seen that the bottom 37 of the removal region 5 is slightly angled upwards in an end section 49 . Below the bottom 37 there is a connecting portion 50 of the support member 42 which is clamped by means of a clamping bar 51 and screws 52 (which cooperate with non-visible welding nuts on the bottom of the bottom 37 ). A Kragabschnitt 53 of the support member 42 protrudes beyond a front edge 55 of the angled end portion 49 of the bottom 37 and a front edge 54 of the clamping bar 51 and thus located in the cutting gap 38. The metallic terminal block 51 is slightly angled according to the bottom 37 and overlaps the end portion 49, so that the connecting portion 50 a corresponding takes angled form. By the rocker 9 inserted from below into the cutting gap 38 of the cantilever section 53 is deformed, wherein it deforms elastically up to a nearly vertical orientation of its edge. Out FIG. 9 in turn, the height offset 56 between the bottom 4 of the insertion region 2 and the bottom 37 of the removal region 5 can be seen.

LIST OF REFERENCE NUMBERS

1

contraption

2

loading area

3

feeder

4

ground

5

removal area

6

feed direction

7

cutter

8th

first axis of rotation

9

wing

10

second axis of rotation

11

circular blade

12

driving means

13

swing housing

14

thickening area

15

thickness

15 '

top

16

wedge-shaped section

17

crossing

18

section

19

distance

20

thickness

21

line

22

free space

23

coverage

24

radius

25

radius

26

Area

27

cutting edge

28

outer edge

29

distance

30

radius

31

width

32

angle range

33

angle range

34

central axis

35

longitudinal axis

36

distance

37

ground

38

cutting gap

39

leading edge

40

leading edge

41

arrow

42

support element

43

Area

44

Area

45

Side wall

46

Side wall

47

Side wall

48

corner

49

end

50

connecting portion

51

terminal block

52

screw

53

collar portion

54

leading edge

55

leading edge

56

height offset

α

angle

β

angle

Claims (10)

Device (1) for slicing bread into slices a) an insertion area (2) into which a loaf of bread can be inserted, b) a cutting device (7) having a about a first axis of rotation (8) rotatable rocker (9) and on the rocker about a second axis of rotation (10) rotatably mounted circular blade (11), wherein the second axis of rotation (10) itself moved within a cutting cross-section, c) a feed device (3) with which a loaf of bread located in the loading area (2) can be advanced towards the cutting device (7) so that successive slices can be cut off at a front end of the loaf thereof by means of the cutting device (7), d) a removal region (5), in which the cut-off discs can be received, e) arranged in an interior of a rocker housing (13) transmission means for driving the circular blade (11), wherein the rocker housing (13) in one of the first axis of rotation (8) facing away from the end in a perpendicular to a plane of the circular blade (11) oriented longitudinal section wedge-shaped leaking,
characterized in that f) in a thickening region (14), in which the rocker housing (13) and the circular blade (11) overlap, a thickness of the rocker housing (13) measured perpendicular to the plane of the circular blade (11) is greater than 15 mm. Apparatus according to claim 1, characterized in that the perpendicular to the plane of the circular blade (1) measured thickness of the rocker housing (13) is greater than 18 mm, preferably greater than 20 mm. Device according to claim 1 or 2, characterized in that a wedge angle α of the wedge-shaped in longitudinal section, end of the swing casing (13) is between 10 ° and 30 °, preferably between 15 ° and 25 °. Device according to one of claims 1 to 3, characterized in that in the longitudinal section of the rocker housing (13) whose contour first a wedge-shaped portion (16), then in the thickening region (14) has a portion having a maximum constant thickness and then a reduced thickness section (18) (15) preferably extending to the first axis of rotation (8), preferably the maximum thickness (15) in the thickening section (14) being at least 120%; preferably at least 140% of the thickness (20) in the region (18) of reduced thickness (20). Device according to Claim 4, characterized in that a transition (17) between the section of maximum thickness (15) and the section (18) of reduced thickness (20) between the second axis of rotation (10) and the first axis of rotation (8) facing the portion of the cutting edge (27) of the circular blade (11), wherein preferably the transition (17) has a distance (19) from the second axis of rotation (10), the 25% to 50% of the radius (30) of the circular blade ( 11). Device according to one of claims 1 to 5, characterized in that the thickening region (14) during the entire movement of the rocker (9) exclusively above a cutting gap (38) between the insertion region (2) and the removal region (5). Device (1) for cutting bread into slices, with a) an insertion area (2) into which a loaf of bread can be inserted, b) a cutting device (7) which has a rocker (9) rotatable about a first axis of rotation (8) and a circular blade (11) rotatably mounted on the rocker (9) about a second axis of rotation (10), wherein the second axis of rotation ( 10) moves within a cutting cross-section, c) a feed device (3) with which a loaf of bread located in the loading area (2) can be advanced towards the cutting device (7) so that successive slices can be cut off at a front end of the loaf thereof by means of the cutting device (7), d) a removal region (5), in which the cut-off discs can be received, e) arranged in an interior of a rocker housing (13) transmission means for driving the circular blade (11), wherein the rocker housing (13) in one of the first axis of rotation (8) facing away from the end in a perpendicular to a plane of the circular blade (11) oriented longitudinal section wedge-shaped leaking, wherein the rocker housing (13) has a spacing (36) from a cutting edge (27) of the circular blade (11) that is smaller than a difference, at least in a cover area (23) located within an overlapping area with the circular blade (11) between a radius (30) of the circular blade (11) and a half minimum width (31) of the rocker (9) in a region which, viewed from the first axis of rotation (8), is on the other side of the second axis of rotation (10), however in the overlapping area with the circular blade (11), characterized in that f) the distance (36) between a preferably circular arc-shaped outer edge (28) of the cover region (23) and the cutting edge (27) of the circular blade (11) is a maximum of 25 mm. Apparatus according to claim 7, characterized in that the cover region (23), in a view perpendicular to a plane of the circular blade (11), has the shape of a circular ring, preferably over an angular range (33) between 70 ° and 110 °, preferably between 80 ° and 100 °. Apparatus according to claim 7 or 8, characterized in that a central axis (34) of the cover region (23) extends at an angle β to a longitudinal axis (35) of the rocker (9), which is between 110 ° and 150 °, preferably between 120 ° and 140 °. Device according to one of claims 7 to 9, characterized in that the distance (36) between a preferably circular arc-shaped outer edge (28) of the cover (23) and the cutting edge (27) of the circular blade (11) a maximum of 20 mm, preferably at most 15 mm , is.

Images