EP1967271B1 - Circular cutter - Google Patents
Circular cutter Download PDFInfo
- Publication number
- EP1967271B1 EP1967271B1 EP07004728A EP07004728A EP1967271B1 EP 1967271 B1 EP1967271 B1 EP 1967271B1 EP 07004728 A EP07004728 A EP 07004728A EP 07004728 A EP07004728 A EP 07004728A EP 1967271 B1 EP1967271 B1 EP 1967271B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circular cutter
- blade
- knife
- rotation
- cutting edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000969 carrier Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/083—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with a disc rotor having generally radially extending slots or openings bordered with cutting knives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/143—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with a disc rotor having generally radially extending slots or openings bordered with cutting knives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
- B02C2201/066—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage for garden waste
Definitions
- the invention relates to a knife disc, in particular a knife disc for a garden chopper, the specified in the preamble of claim 1 genus.
- a knife disc for a garden shredder which has two blades. Each knife has a total of four blades. After wear of a cutting edge, the knife can be loosened from the knife disc, rotated and fixed again on the knife disc so that the next cutting edge is used. The loosening and re-fixing the blades on the cutter disk is relatively expensive.
- the invention has for its object to provide a knife disc of the generic type, which allows a long operation with little effort for the operator.
- the swiveling bearing of the knife makes it possible to use another cutting edge simply by pivoting. It is not necessary to loosen and re-fix the knife on the cutting disc. This simplifies the operation and reduces the effort for the operator.
- the pivot axis is parallel to a cutting edge of the knife.
- the pivot axis is parallel to the base plate of the knife disc.
- the pivot axis is aligned approximately radially to the axis of rotation of the cutter disk.
- a knife has two cutting edges, one of the cutting edges being used in each pivoting position of the knife.
- the first cutting edge in a first direction of rotation and the second cutting edge in a second direction of rotation of the cutting disc are used.
- the blade pivots automatically depending on the direction of rotation of the cutter disk.
- the direction of rotation of the knife disc that is to say the direction of rotation of the drive shaft of the garden chopper, must be changed. Different directions of rotation can be provided, for example, for chopping and for Schnitzel réelle the garden shredder.
- the automatic pivoting of the knife can be done by appropriate arrangement of the knife through the shredded material itself, which raises the forward direction of rotation in the cutting edge and presses on the rear in the direction of rotation cutting edge. This causes a pivoting of the knife.
- two knives each having at least one cutting edge, are pivotally mounted together about the pivot axis, a blade of one blade being used in a first pivoting position and a blade of the other blade being used in a second pivoting position.
- pivoting the two knives can be done in a simple manner exchange the knife with the used cutting edge.
- a loosening of the knife from the knife disc is not necessary for the replacement of the knife used for use.
- both cutting edges are used in the same direction of rotation of the cutting disc.
- the knives are arranged so that they are used in different directions of rotation of the knife disc.
- the knife is manually pivotable by an operator.
- the knife disc has at least one knife carrier pivotally mounted about the pivot axis, on which at least one knife is arranged.
- the knife is in particular releasably held on the knife carrier. After wear of the cutting edge or the cutting edges of the knife, the knife can be replaced due to the detachable arrangement on the knife carrier.
- a simple and stable construction of the cutter disk is achieved when the cutter disk has at least one bearing pin for the pivotable mounting of at least one knife carrier.
- the bearing pin is held in particular in a bearing block which is non-rotatably connected to the base plate of the knife disc. By doing Bearing block, the bearing pin can be kept well, so that the occurring cutting forces can be transferred well from the knife to the bearing block.
- the bearing block preferably has a receptacle surrounding the axis of rotation of the cutter disk for the rotationally fixed connection to the drive shaft.
- the knife is mechanically held in its position in at least one pivotal position.
- at least one stop is provided, which determines a pivot position of a knife.
- the blade is held in at least one pivotal position by centrifugal force.
- FIG. 1 Cutter disk 1 shown used in particular for crushing shredded material in a garden shredder.
- the knife disc 1 has a receptacle 15 which is formed out of round and which serves to receive a drive shaft of the garden chopper.
- the cutter disk 1 is driven in rotation about a rotation axis 2 during operation.
- the knife disc 1 The rotary disk 2 is perpendicular to the plane of the base plate 3.
- the cutter disk 1 has two oppositely arranged razor 4, which are arranged in the region of the circumference of the cutter disk 1 and which protrude through the base plate 3.
- the base plate 3 has an upper side 32, which faces the supplied shredded material.
- Räumeriel 33 are arranged in the region of the razor, which extend substantially radially to the axis of rotation 2.
- the Räumeriel 33 are integrally formed with the tear blades 4 and over in Fig. 2 shown fastening screws 34 held on the base plate 3.
- the cutter disk 1 has two blades 5, which are pivotally supported on the cutter disk 1.
- the knives 5 are pivotally supported about pivot axes 24 which extend parallel to the plane of the base plate 3 and radially to the rotation axis 2.
- the arrows 6 indicate the direction of pivoting of the knife 5.
- Each knife 5 has two cutting edges 7 and 8, which run parallel to the respective pivot axis 24.
- the knives 5 are arranged in recesses 18 of the base plate 3.
- the recesses 18 are formed so large that in each case a distance between a cutting edge and the base plate 3 is formed. This distance forms an opening through which chips of shredded clippings can pass through the cutter disk 1.
- the knives 5 are each held on a knife carrier 9.
- Each blade carrier 9 is pivotally mounted on a bearing pin 10 about the pivot axis 24.
- the storage of the two Knife holder 9 is identical.
- the knife carrier 9 has a through hole 19 through which the bearing pin 10 protrudes.
- end of the bearing pin 10 has an end plate 20 with an enlarged diameter, which prevents the knife carrier 9 can slide in the radial direction of the bearing pin 10.
- the bearing pin 10 is held in a bore 21 of a bearing block 13.
- the bearing block 13 is centrally and below the base plate 3, ie on the side facing away from the upper side 32 of the base plate 3, respectively.
- the bearing block 13 has a hub 14 in which the receptacle 15 is formed for the drive shaft.
- the hub 14 has a rectangular, in particular square outer periphery, which projects into a central receptacle 12 of the base plate 3.
- the base plate 3 is rotatably connected to the bearing block 13 and connected via the bearing block 13 with a protruding through the receptacle 15 drive shaft.
- elevations 16 which protrude into openings 17 of the base plate 3 and so set the rotational position.
- the bearing block 13 has in each case a recess 26 in the region in which the knife carriers 9 bear against the bearing block 13 Fig. 3 the bearing block 13 is shown enlarged in the region of the recess 26.
- stops 23 are arranged.
- the stops 23 act with the in Fig. 2 shown stop surfaces 22 of the knife carrier 9 together.
- the Stop surfaces 22 define with the associated stops 23, the two end positions of the pivoting movement of the knife carrier.
- the blades 5 are held by two screws 11 releasably attached to the blade carriers 9.
- the bearing pins 10 have at their radially inner end a circumferential groove 27, which also in Fig. 2 is shown.
- a retaining ring 28 is arranged, which may be connected to the bearing block 13, for example via a screw connection.
- the retaining ring 28 has an edge 29 which projects into the circumferential groove 27 of the two bearing pins 10 and thereby fixes the bearing pins 10 in the radial direction. It can also be provided that, instead of the circumferential groove 27, only one depression is provided on the circumference of the bearing bolts 10, which does not extend over the entire circumference.
- the rotational position of the bearing bolts 10 can be determined via the edge 29.
- the blades 5 are mounted on the cutter disk 1 that they project beyond the top 32 of the base plate 3 in its central region, ie in the region which is geometrically located between the cutting edges 7 and 8. Here is a supernatant a given.
- the in the FIGS. 1 to 4 shown cutting disc 1 can in the in Fig. 5 shown first rotational direction 30 and in the in Fig. 6 shown second direction of rotation 31 are driven.
- Fig. 5 shows, are at a drive of the cutter disk 1 in the first direction of rotation 30, the first cutting edge 7 of the blade 5 above the top 32 of the base plate 3.
- This first pivot position 35 of the blade 5 is defined by one of the stop surfaces 22 and one of the stops 23.
- the blades 5 are automatically pivoted in the first pivot position 35 when driving the cutter disk 1 in the first direction of rotation 30. This is due to branches and other material to be shredded, which raises the leading in the first direction of rotation 30 cutting 7 and presses on the rear lying in the direction of rotation second cutting 8.
- the blades 5 are arranged in a second pivot position 36.
- the blades 5 and the knife carrier 9 are pivoted relative to the first pivoting position 35 by an angle ⁇ about the pivot axis 24.
- the angle ⁇ can be advantageous from 10 ° to 20 °. In particular, the angle ⁇ is about 15 °.
- second pivotal position 36 is by a respective stop surface 22 and a respective stop 23 (FIG. Fig. 2 and Fig. 3 ), wherein in each case with respect to the first pivoting position 35 other stop surface 22 and the other stop 23 are engaged.
- the pivotable mounting of the blade 5 about the pivot axis 24 about a pivot angle ⁇ allows an automatic pivoting of the blade 5, so that in the first direction of rotation 30, the first cutting 7 and the second direction of rotation 31, the second cutting 8 are used.
- the direction of rotation of the blade disc 1 has to be changed.
- An adjustment of the knife 5 itself is not required.
- the blades 5 are to be adjusted by the operator between the two pivoting positions 35 and 36.
- the knives 5 or the knife carriers 9 engage in the two pivotal positions 35 and 36.
- FIG. 7 An embodiment of a cutter disk 1 is in Fig. 7 shown. Same reference numerals as in the FIGS. 1 to 6 identify appropriate components.
- the cutter disk 1 has a bearing block 13, on which a knife carrier 39 is pivotably mounted about a pivot axis 24. On the knife carrier 39, a first knife 45 with a cutting edge 46 and a second knife 47 with a cutting edge 48 is arranged.
- the cutting edges 46 and 48 are parallel to the pivot axis 24.
- the two knives are arranged rotationally symmetrically about the pivot axis 24 on the knife carrier 39.
- the knife carrier 39 with the two knives 45 and 47 can be manually pivoted by an operator by a pivoting angle ⁇ of 180 °.
- Fig. 7 the knife carrier 39 is shown in a first pivot position 43, in which a first knife 45 with a first cutting edge 46 is used.
- the knife 47 is approximately in the plane of the base plate 3 and the cutting edge 48 is used.
- a stop 42 is provided which in the FIGS. 9 and 10 is shown schematically.
- the stop 42 is designed in particular as a ramp, so that the knife carrier 39 in the direction of in Fig. 10 shown arrow 38 can slide over the stop 42. In the opposite direction to the arrow 38 pivoting of the knife carrier 39 is prevented by the stop 42.
- Fig. 8 shows an embodiment of a blade carrier 49, which is fixed on a bearing pin 40 due to the effective direction 50 of the centrifugal force.
- the bearing pin 40 has at its outer end a conical portion 41 which widens radially outward.
- the knife carrier 49 has a corresponding conical portion 37 which rests on the conical portion 41 of the bearing pin 40 and the centrifugal force is pressed against the conical portion 41.
- the knife carrier 49 is fixed on the bearing pin 40 in its pivotal position.
- the two pivotal positions 43 and 44 of the knife carrier 49 can be adjusted by an operator who can pivot the knife carrier 49 at standstill of the cutter disk 1 about the pivoting position 24. As soon as the knife disc 1 begins to rotate, the centrifugal force acts and fixes the knife carrier 49 with the knives 45 and 47 in its pivotal position.
- the knife carrier or the knife there may also be provided other means for fixing the knife carrier or the knife in the two pivotal positions. It can also be provided that more than two knives are arranged on a knife carrier, which are distributed uniformly on the circumference of the knife carrier, so that the knife carrier must be pivoted by a respective partial angle in order to bring the edge of the next knife used , In the embodiment of the FIGS. 7 to 10 the two cutting edges 46 and 48 are aligned so that they are each used in the same direction of rotation 30. However, it can also be provided to arrange one of the knives in the opposite direction, so that the two cutting edges 46 and 48 are used in different directions of rotation.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Threshing Machine Elements (AREA)
- Crushing And Pulverization Processes (AREA)
- Packaging Of Special Articles (AREA)
- Pens And Brushes (AREA)
- Magnetic Record Carriers (AREA)
Abstract
Description
Die Erfindung betrifft eine Messerscheibe, insbesondere eine Messerscheibe für einen Gartenhäcksler, der im Oberbegriff des Anspruchs 1 angegebenen Gattung.The invention relates to a knife disc, in particular a knife disc for a garden chopper, the specified in the preamble of claim 1 genus.
Aus der
Der Erfindung liegt die Aufgabe zugrunde, eine Messerscheibe der gattungsgemäßen Art zu schaffen, die einen langen Betrieb bei geringem Aufwand für den Bediener ermöglicht.The invention has for its object to provide a knife disc of the generic type, which allows a long operation with little effort for the operator.
Diese Aufgabe wird durch eine Messerscheibe mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a knife disc having the features of claim 1.
Die schwenkbare Lagerung des Messers ermöglicht es, durch einfaches Verschwenken eine andere Schneide zum Einsatz zu bringen. Ein Lösen und wieder Fixieren des Messers an der Messerscheibe ist nicht notwendig. Dadurch wird die Bedienung vereinfacht und der Aufwand für den Bediener verringert.The swiveling bearing of the knife makes it possible to use another cutting edge simply by pivoting. It is not necessary to loosen and re-fix the knife on the cutting disc. This simplifies the operation and reduces the effort for the operator.
Vorteilhaft liegt die Schwenkachse parallel zu einer Schneide des Messers. Zweckmäßig liegt die Schwenkachse parallel zu der Grundplatte der Messerscheibe. Insbesondere ist die Schwenkachse etwa radial zur Drehachse der Messerscheibe ausgerichtet.Advantageously, the pivot axis is parallel to a cutting edge of the knife. Suitably, the pivot axis is parallel to the base plate of the knife disc. In particular, the pivot axis is aligned approximately radially to the axis of rotation of the cutter disk.
Es ist vorgesehen, dass ein Messer zwei Schneiden aufweist, wobei in jeder Schwenklage des Messers eine der Schneiden zum Einsatz kommt. Insbesondere kommen die erste Schneide in einer ersten Drehrichtung und die zweite Schneide in einer zweiten Drehrichtung der Messerscheibe zum Einsatz. Dabei ist insbesondere vorgesehen, dass das Messer in Abhängigkeit der Drehrichtung der Messerscheibe selbsttätig verschwenkt. Zur Auswahl der zum Einsatz kommenden Schneide muss dadurch lediglich die Drehrichtung der Messerscheibe, also die Drehrichtung der Antriebswelle des Gartenhäckslers, geändert werden. Unterschiedliche Drehrichtungen können beispielsweise für Häckselbetrieb und für Schnitzelbetrieb des Gartenhäckslers vorgesehen sein. Das selbsttätige Verschwenken des Messers kann durch geeignete Anordnung des Messers durch das Häckselgut selbst erfolgen, das die in Drehrichtung nach vorne weisende Schneide anhebt und auf die in Drehrichtung hinten liegende Schneide drückt. Dadurch wird ein Verschwenken des Messers bewirkt.It is envisaged that a knife has two cutting edges, one of the cutting edges being used in each pivoting position of the knife. In particular, the first cutting edge in a first direction of rotation and the second cutting edge in a second direction of rotation of the cutting disc are used. It is particularly provided that the blade pivots automatically depending on the direction of rotation of the cutter disk. In order to select the cutting edge used, only the direction of rotation of the knife disc, that is to say the direction of rotation of the drive shaft of the garden chopper, must be changed. Different directions of rotation can be provided, for example, for chopping and for Schnitzelbetrieb the garden shredder. The automatic pivoting of the knife can be done by appropriate arrangement of the knife through the shredded material itself, which raises the forward direction of rotation in the cutting edge and presses on the rear in the direction of rotation cutting edge. This causes a pivoting of the knife.
Es kann vorgesehen sein, dass zwei Messer mit jeweils mindestens einer Schneide gemeinsam um die Schwenkachse schwenkbar gelagert sind, wobei in einer ersten Schwenklage eine Schneide des einen Messers und in einer zweiten Schwenklage eine Schneide des anderen Messers zum Einsatz kommt. Durch Verschwenken der beiden Messer kann auf einfache Weise ein Austausch des Messers mit der zum Einsatz kommenden Schneide erfolgen. Ein Lösen des Messers von der Messerscheibe ist zum Austausch des zum Einsatz kommenden Messers nicht notwendig. Dabei ist insbesondere vorgesehen, dass beide Schneiden in der gleichen Drehrichtung der Messerscheibe zum Einsatz kommen. Es kann jedoch auch vorgesehen sein, dass die Messer so angeordnet sind, dass sie in unterschiedlichen Drehrichtungen der Messerscheibe zum Einsatz kommen. Vorteilhaft ist das Messer von einem Bediener manuell verschwenkbar.It can be provided that two knives, each having at least one cutting edge, are pivotally mounted together about the pivot axis, a blade of one blade being used in a first pivoting position and a blade of the other blade being used in a second pivoting position. By pivoting the two knives can be done in a simple manner exchange the knife with the used cutting edge. A loosening of the knife from the knife disc is not necessary for the replacement of the knife used for use. In particular, it is provided that both cutting edges are used in the same direction of rotation of the cutting disc. However, it can also be provided that the knives are arranged so that they are used in different directions of rotation of the knife disc. Advantageously, the knife is manually pivotable by an operator.
Um auf einfache Weise eine Verschwenkbarkeit des Messers zu erreichen, ist vorgesehen, dass die Messerscheibe mindestens einen schwenkbar um die Schwenkachse gelagerten Messerträger besitzt, an dem mindestens ein Messer angeordnet ist. Das Messer ist an dem Messerträger insbesondere lösbar gehalten. Nach Abnutzung der Schneide bzw. der Schneiden des Messers kann das Messer aufgrund der lösbaren Anordnung an dem Messerträger ausgetauscht werden. Ein einfacher und stabiler Aufbau der Messerscheibe wird erreicht, wenn die Messerscheibe mindestens einen Lagerbolzen zur schwenkbaren Lagerung von mindestens einem Messerträger aufweist. Der Lagerbolzen ist dabei insbesondere in einem Lagerblock gehalten, der drehfest mit der Grundplatte der Messerscheibe verbunden ist. In dem Lagerblock kann der Lagerbolzen gut gehalten werden, so dass die auftretenden Schnittkräfte gut vom Messer zum Lagerblock übertragen werden können. Vorzugsweise weist der Lagerblock eine die Drehachse der Messerscheibe umgebende Aufnahme zur drehfesten Verbindung mit der Antriebswelle auf. Dadurch, dass der Lagerblock selbst drehfest mit der Antriebswelle verbunden werden kann, können die auftretenden Schnittkräfte direkt vom Messer über den Lagerblock in die Antriebswelle eingeleitet werden. Eine Einleitung der Schnittkräfte in die Grundplatte der Messerscheibe ist nicht notwendig. Dadurch kann die Grundplatte der Messerscheibe vergleichsweise dünn ausgebildet werden.In order to achieve a pivotability of the knife in a simple manner, it is provided that the knife disc has at least one knife carrier pivotally mounted about the pivot axis, on which at least one knife is arranged. The knife is in particular releasably held on the knife carrier. After wear of the cutting edge or the cutting edges of the knife, the knife can be replaced due to the detachable arrangement on the knife carrier. A simple and stable construction of the cutter disk is achieved when the cutter disk has at least one bearing pin for the pivotable mounting of at least one knife carrier. The bearing pin is held in particular in a bearing block which is non-rotatably connected to the base plate of the knife disc. By doing Bearing block, the bearing pin can be kept well, so that the occurring cutting forces can be transferred well from the knife to the bearing block. The bearing block preferably has a receptacle surrounding the axis of rotation of the cutter disk for the rotationally fixed connection to the drive shaft. The fact that the bearing block itself can be rotatably connected to the drive shaft, the cutting forces occurring can be initiated directly from the knife on the bearing block in the drive shaft. An introduction of the cutting forces in the base plate of the knife disc is not necessary. As a result, the base plate of the knife disc can be made comparatively thin.
Es ist vorgesehen, dass das Messer in mindestens einer Schwenklage mechanisch in seiner Lage gehalten ist. Vorteilhaft ist mindestens ein Anschlag vorgesehen, der eine Schwenklage eines Messers festlegt. Es kann jedoch auch vorgesehen sein, dass das Messer in mindestens einer Schwenklage durch Fliehkraft gehalten ist.It is envisaged that the knife is mechanically held in its position in at least one pivotal position. Advantageously, at least one stop is provided, which determines a pivot position of a knife. However, it can also be provided that the blade is held in at least one pivotal position by centrifugal force.
Ausführungsbeispiele der Erfindung werden im Folgenden anhand der Zeichnungen erläutert. Es zeigen:
- Fig. 1
- eine perspektivische Darstellung einer Messerscheibe,
- Fig. 2
- eine Explosionsdarstellung der Messerscheibe aus
Fig. 1 , - Fig. 3.
- eine ausschnittsweise, vergrößerte Darstellung des Lagerblocks der Messerscheibe aus
Fig. 2 , - Fig. 4
- eine perspektivische, geschnittene Darstellung der Messerscheibe aus
Fig. 1 , - Fig. 5
- die Messerscheibe aus
Fig. 1 beim Betrieb in einer ersten Drehrichtung, - Fig. 6
- die Messerscheibe aus
Fig. 1 beim Betrieb in einer zweiten Drehrichtung, - Fig. 7
- ein Ausführungsbeispiel einer Messerscheibe,
- Fig. 8 und Fig. 9
- schematische Darstellungen von Ausführungsbeispielen von Messerträgern auf einem Lagerbolzen,
- Fig. 10
- eine schematische Seitenansicht des Messerträgers aus
Fig. 9 .
- Fig. 1
- a perspective view of a knife disc,
- Fig. 2
- an exploded view of the cutter disk
Fig. 1 . - Fig. 3.
- a fragmentary, enlarged view of the bearing block of the cutter disk
Fig. 2 . - Fig. 4
- a perspective, sectional view of the knife disk
Fig. 1 . - Fig. 5
- the knife disk off
Fig. 1 when operating in a first direction of rotation, - Fig. 6
- the knife disk off
Fig. 1 when operating in a second direction of rotation, - Fig. 7
- an embodiment of a knife disc,
- FIGS. 8 and 9
- schematic representations of embodiments of knife carriers on a bearing bolt,
- Fig. 10
- a schematic side view of the blade carrier
Fig. 9 ,
Die in
Wie
Die Messer 5 sind jeweils an einem Messerträger 9 gehalten. Jeder Messerträger 9 ist an einem Lagerbolzen 10 um die Schwenkachse 24 schwenkbar gelagert. Die Lagerung der beiden Messerträger 9 ist identisch ausgebildet. Wie
Der Lagerblock 13 besitzt eine Nabe 14, in der die Aufnahme 15 für die Antriebswelle ausgebildet ist. Die Nabe 14 besitzt einen rechteckigen, insbesondere quadratischen Außenumfang, der in eine mittige Aufnahme 12 der Grundplatte 3 ragt. Damit ist die Grundplatte 3 drehfest mit dem Lagerblock 13 und über den Lagerblock 13 auch mit einer durch die Aufnahme 15 ragenden Antriebswelle verbunden. Um die Lage der Grundplatte 3 und des Lagerblocks 13 festzulegen, sind an einer Auflagefläche 25 des Lagerblocks 13, an der die Grundplatte 3 anliegt, beidseitig der Nabe 14 Erhebungen 16 angeordnet, die in Öffnungen 17 der Grundplatte 3 ragen und so die Drehlage festlegen.The bearing
Der Lagerblock 13 besitzt in dem Bereich, in dem die Messerträger 9 am Lagerblock 13 anliegen, jeweils eine Vertiefung 26. In
Wie die Schnittdarstellung in
Die in den
In der in
Beim Antrieb der Messerscheibe 1 in der zweiten Drehrichtung 31 aus der in
Die verschwenkbare Lagerung des Messers 5 um die Schwenkachse 24 um einen Verschwenkwinkel α erlaubt ein selbsttätiges Verschwenken der Messer 5, so dass bei der ersten Drehrichtung 30 die ersten Schneiden 7 und bei der zweiten Drehrichtung 31 die zweiten Schneiden 8 zum Einsatz kommen. Um eine andere Schneide eines Messers 5 zum Einsatz zu bringen, muss dadurch lediglich die Drehrichtung der Messerscheibe 1 geändert werden. Ein Verstellen der Messer 5 selbst ist nicht erforderlich. Es kann jedoch auch vorgesehen sein, dass die Messer 5 vom Bediener zwischen den beiden Schwenklagen 35 und 36 zu verstellen sind. Es kann auch vorgesehen sein, dass die Messer 5 bzw. die Messerträger 9 in den beiden Schwenklagen 35 und 36 verrasten.The pivotable mounting of the
Ein Ausführungsbeispiel einer Messerscheibe 1 ist in
Die Schneiden 46 und 48 liegen parallel zur Schwenkachse 24. Die beiden Messer sind rotationssymmetrisch um die Schwenkachse 24 an dem Messerträger 39 angeordnet. Der Messerträger 39 mit den beiden Messern 45 und 47 kann von einem Bediener manuell um einen Verschwenkwinkel β von 180° verschwenkt werden. In
Zur Fixierung des Messerträgers 49 in den beiden Schwenklagen 43 und 44 ist ein Anschlag 42 vorgesehen, der in den
Es können auch andere Mittel zur Fixierung des Messerträgers bzw. der Messer in den beiden Schwenklagen vorgesehen sein. Es kann auch vorgesehen sein, dass an einem Messerträger mehr als zwei Messer angeordnet sind, die gleichmäßig am Umfang des Messerträgers verteilt angeordnet sind, so dass der Messerträger jeweils um einen entsprechenden Teilwinkel verschwenkt werden muss, um die Schneide des nächsten Messers zum Einsatz zu bringen. Im Ausführungsbeispiel nach den
Claims (14)
- Circular cutter, in particular for a garden chipper, the circular cutter (1) comprising at least one substantially level base plate (3) and at least two cutting edges (7, 8, 46, 48) formed on at least one blade (5, 45, 47) and the circular cutter (1) being driven in operation to rotate about an axis of rotation (2) extending at right angles to the base plate (3),
characterised in that the at least one blade (5, 45, 47) is mounted on the circular cutter (1) for pivoting about a pivot axis (24), wherein a first cutting edge (7, 46) operates in a first pivoting position (35, 43) and a second cutting edge (8, 48) operates in a second pivoting position (36, 44). - Circular cutter according to claim 1,
characterised in that the pivot axis (24) runs parallel to a cutting edge (7, 8, 46, 48) of the blade (9, 45, 47). - Circular cutter according to claim 1 or 2,
characterised in that the pivot axis (24) lies parallel to the base plate (3) of the circular cutter (1) and is in particular oriented approximately radially with respect to the axis of rotation (2) of the circular cutter (1). - Circular cutter according to any of claims 1 to 3,
characterised in that a blade (5) has two cutting edges (7, 8), one of the cutting edges (7, 8) being used in each pivoting position (35, 36) of the blade (5). - Circular cutter according to claim 4,
characterised in that the first cutting edge (7) is used in a first direction of rotation (30) and the second cutting edge (8) is used in a second direction of rotation (31) of the circular cutter (1). - Circular cutter according to claim 5,
characterised in that the blade (5) is pivoted automatically in dependence on the direction of rotation (30, 31) of the circular cutter (1). - Circular cutter according to any of claims 1 to 3,
characterised in that two blades (45, 47) with at least one cutting edge (46, 48) each are jointly mounted for pivoting about the pivot axis (24), wherein a cutting edge (46) of one blade (45) operates in a first pivoting position (43) and a cutting edge (48) of the other blade (47) operates in a second pivoting position (44). - Circular cutter according to claim 7,
characterised in that both cutting edges (46, 48) are used in the same direction of rotation (30) of the circular cutter (1). - Circular cutter according to claim 7 or 8,
characterised in that the blade (45, 47) can be pivoted manually by the operator. - Circular cutter according to any of claims 1 to 9,
characterised in that the circular cutter (1) comprises at least one blade support (9, 39, 49) pivotable about the pivoting axis (24) and supporting at least one blade (5, 45, 47), the blade (5, 45, 47) being particular held detachably on the blade support (9, 39, 49). - Circular cutter according to claim 10,
characterised in that the circular cutter (1) comprises at least one bearing pin (10, 40) for the pivotable mounting of at least one blade support (9, 39, 49), wherein the bearing pin (10, 40) is in particular held in a bearing block (13) which is non-rotatably joined to the base plate (3) of the circular cutter (1) and wherein the bearing block (13) is preferably provided with a location (15) surrounding the axis of rotation (2) of the circular cutter (1) for a non-rotatable connection to a drive shaft. - Circular cutter according to any of claims 1 to 11,
characterised in that the blade (5, 45, 47) is mechanically held in position in at least one pivoting position (35, 36, 43, 44). - Circular cutter according to claim 12,
characterised in that at least one stop (23, 42) is provided for fixing a pivoting position (35, 36, 43, 44) of the blade (5, 45, 47). - Circular cutter according to any of claims 1 to 11,
characterised in that the blade (45, 47) is held in at least one pivoting position (43, 44) by the centrifugal force generated in operation.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07004728A EP1967271B1 (en) | 2007-03-08 | 2007-03-08 | Circular cutter |
DE502007004991T DE502007004991D1 (en) | 2007-03-08 | 2007-03-08 | diameter disc |
AT07004728T ATE480332T1 (en) | 2007-03-08 | 2007-03-08 | KNIFE DISC |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07004728A EP1967271B1 (en) | 2007-03-08 | 2007-03-08 | Circular cutter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1967271A1 EP1967271A1 (en) | 2008-09-10 |
EP1967271B1 true EP1967271B1 (en) | 2010-09-08 |
Family
ID=38282832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07004728A Active EP1967271B1 (en) | 2007-03-08 | 2007-03-08 | Circular cutter |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1967271B1 (en) |
AT (1) | ATE480332T1 (en) |
DE (1) | DE502007004991D1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2973721B1 (en) * | 2011-04-06 | 2015-04-17 | Michel Bugnot | VEGETABLE MILLER |
CN109012929A (en) * | 2018-09-20 | 2018-12-18 | 深圳市晓控通信科技有限公司 | A kind of recycling equipment for organic waste |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5390865A (en) * | 1993-01-05 | 1995-02-21 | Vandermolen; Aldo | Processor for chipping and shredding vegetatation |
US6027055A (en) * | 1998-01-28 | 2000-02-22 | Doskocil; David Lee | Brush chipper |
DE20102864U1 (en) * | 2001-02-19 | 2001-05-10 | Atika Maschinenfabrik Wilhelm | Garden shredder |
-
2007
- 2007-03-08 DE DE502007004991T patent/DE502007004991D1/en active Active
- 2007-03-08 AT AT07004728T patent/ATE480332T1/en active
- 2007-03-08 EP EP07004728A patent/EP1967271B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
ATE480332T1 (en) | 2010-09-15 |
DE502007004991D1 (en) | 2010-10-21 |
EP1967271A1 (en) | 2008-09-10 |
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