EP0208806A2 - Roller cutting apparatus for the size reduction of bulky refuse - Google Patents
Roller cutting apparatus for the size reduction of bulky refuse Download PDFInfo
- Publication number
- EP0208806A2 EP0208806A2 EP85109625A EP85109625A EP0208806A2 EP 0208806 A2 EP0208806 A2 EP 0208806A2 EP 85109625 A EP85109625 A EP 85109625A EP 85109625 A EP85109625 A EP 85109625A EP 0208806 A2 EP0208806 A2 EP 0208806A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- teeth
- funnel
- machine according
- gap
- 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.)
- Granted
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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
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
- B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
-
- 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
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
Definitions
- the invention relates to a roller cutting machine according to the preamble of claim 1.
- Such a machine is known for example from DE-AS 1 507 485.
- the rollers pull the waste to be shredded into the roller gap, where they shred it in mutual interaction. If there is a limit load, the rollers are automatically stopped and temporarily reversed, after which they are rotated again in the original direction. If the limit load is reached again, this reversing process is repeated or the machine is switched off. If the condition remains unsolvable, the funnel must be emptied upwards when the machine is shut down, which is naturally tedious, time-consuming and expensive. Such a machine can therefore only be operated under constant supervision if you want to avoid long downtimes.
- the invention has for its object to remedy this and other disadvantages in an economically advantageous manner.
- rollers run on their top side from the roller gap to the hopper walls enables them to loosen and tear up the waste, whereas previous machines were more likely to compact the waste in the roller gap, which reduced the cutting performance.
- the funnel teeth are brought into the rest position, i.e. removed from the roller.
- the material that cannot be cut can pass downwards past the roller and past the funnel wall and the funnel teeth can return to their starting position.
- the funnel cannot become blocked and never needs to be emptied from above in an emergency. It is therefore possible to load the funnel directly with large quantities of bulky waste, whereas previously it was only possible to add small portions which could also be removed upwards when blocked.
- rollers work away from each other, slowing down or a standstill of one roller does not necessarily affect the other roller.
- Single drives can lead to practically complete independence of the rollers.
- the rollers are so "linked" to one another by the intermeshing teeth and the material to be shredded that they inevitably always have to run or stand together.
- each funnel wall area can be pivoted about a pivot axis that is axially parallel to the rollers, which axis is usually above the funnel teeth, because a large area can then be released and the funnel itself is virtually expanded.
- a positive drive of the funnel teeth for their movement in the rest position and back in the working position has the advantage that the teeth can be held very rigidly in the working position and this rigid holder can only be released if necessary.
- a hydraulic drive can also be very useful here perform, the pressure change can serve to trigger the rest position movement.
- the triggering of the rest position movement of the funnel teeth can also be derived from the operating pressure of the roller drive alone or together with the operating pressure of the funnel tooth drive.
- one row of funnel teeth can be moved in the rest position without affecting the other row, so that at least half the machine output is retained.
- ring grooves are provided between the ring zones (which extend close to the relevant funnel teeth) on which the roller teeth are arranged, which are each dimensioned significantly retreating from the opposite funnel tooth.
- no uncut material can still fall through because the tooth-bearing ring zones come very close to the funnel teeth.
- An offset of the roller teeth in the circumferential direction increases the cutting performance insofar as only a part or even only one of the roller teeth has a cutting effect.
- roller teeth In the machine according to the invention, no cutting takes place in the roller gap, which is why there is no need for the roller teeth to interlock.
- roller teeth it is advantageous if the roller teeth only reach just up to the roller gap, because this promotes their loosening effect when the waste is torn apart and allows the funnel cross-section to be maximized with the same roller dimension.
- a hydraulic drive which operates with freewheels alternately driven by hydraulic units is considered to be particularly economical.
- the machine 2 shown in FIGS. 1 and 2 has a hopper 2 in which two rollers 3 are arranged parallel to one another.
- the funnel 2 has two funnel regions 20 which are parallel to the rollers 3 and which carry funnel teeth 21 at the lower edge.
- Each of the hopper areas 20 can be pivoted about an axis 22 parallel to the rollers 3 by means of the associated hydraulic cylinder 23 from its working position (shown in FIG. 1 alone and on the right in FIG. 2) into its rest position (shown on the left in FIG. 2) and vice versa.
- Each of the rollers 3 has teeth offset in the circumferential direction 30, on ring zones 31 spaced apart in the axial direction and ring grooves 32 lying between them.
- the roller teeth 30 extend in the middle to the roller gap 33 and engage between the funnel teeth 21 when the funnel regions 20 are in the working position (shown in FIG. 1 alone and in FIG. 2 on the right). Then the ring zones 31 also reach close to the funnel teeth 21, whereas the ring grooves 32 are spaced apart from the respective opposite funnel teeth 21 so that clippings can fall off the funnel teeth.
- Each roller 3 can be driven individually by its own hydraulic roller drive 4 (see FIGS. 1 and 3).
- Each roller drive 4 has (see FIG. 3) two rectified freewheels 40, 41, each of which is operatively connected to a lever 42, 43.
- One hydraulic cylinder 44, 45 is operatively connected to each lever 42, 43.
- a controller 5 ensures that hydraulic cylinders 23, 44 and 45 are supplied with hydraulic oil from the pump device 50 in the correct position (cf. FIG. 1).
- the funnel regions 20 are in the working position and the rollers 3 turn upwards from the roller gap 33 towards the funnel teeth 21.
- the control device 5 which monitors the pressure in the hydraulic cylinders 44, 45, brings the hydraulic cylinders 23 of one or both funnel regions 20 into a return movement, as a result of which the relevant funnel region 20 or both funnel regions 20 swings away from the associated roller 3 in the rest position.
- the jammed material can pass down, the pressure in the hydraulic cylinders 44, 45 of the roller drive 4 is normalized, and the controller 5 allows the hydraulic cylinders 23 to pivot the funnel area (s) in question into the working position.
- a machine is drawn in which all the funnel teeth on one funnel side can be pivoted together with the funnel area. You can also make groups of teeth and individual funnel teeth pivotable on their own if this makes the type of material appear necessary.
Abstract
Description
Die Erfindung betrifft eine Walzenschneidmaschine nach dem Oberbegriff des Anspruch 1.The invention relates to a roller cutting machine according to the preamble of claim 1.
Eine derartige Maschine ist beispielsweise aus der DE-AS 1 507 485 bekannt.Such a machine is known for example from DE-AS 1 507 485.
Bei den bekannten Maschinen ziehen die Walzen den zu zerkleinernden Müll in den Walzenspalt, wo sie ihn im gegenseitigen Zusammenwirken zerkleinern. Kommt es dabei zur Grenzbelastung, werden die Walzen automatisch angehalten und vorübergehend reversiert, worauf sie wieder in der ursprünglichen Richtung rotiert werden. Kommt es wieder zur Grenzbelastung, so wird dieser Reversiervorgang wiederholt oder die Maschine abgestellt. Bleibt der Zustand so unlösbar, so muss der Trichter bei stillgelegter Maschine nach oben entleert werden, was naturgemäss mühsam, zeitraubend und kostspielig ist. Eine solche Maschine kann schon deshalb nur unter ständiger Aufsicht betrieben werden, wenn man lange Stillstände vermeiden will.In the known machines, the rollers pull the waste to be shredded into the roller gap, where they shred it in mutual interaction. If there is a limit load, the rollers are automatically stopped and temporarily reversed, after which they are rotated again in the original direction. If the limit load is reached again, this reversing process is repeated or the machine is switched off. If the condition remains unsolvable, the funnel must be emptied upwards when the machine is shut down, which is naturally tedious, time-consuming and expensive. Such a machine can therefore only be operated under constant supervision if you want to avoid long downtimes.
Der Erfindung liegt die Aufgabe zugrunde, diesem und anderen Nachteilen auf wirtschaftlich vorteilhafte Weise abzuhelfen.The invention has for its object to remedy this and other disadvantages in an economically advantageous manner.
Zur Lösung dieser Aufgabe wird die im Anspruch 1 gekennzeichnete Maschine vorgeschlagen.To achieve this object, the machine characterized in claim 1 is proposed.
Dadurch dass die Walzen an ihrer Oberseite vom Walzenspalt hinweg zu den Trichterwänden umlaufen, können sie den Müll auflockern und zerreissen, während die bisherigen Maschinen den Müll im Walzenspalt eher verdichteten, was die Schneidleistung minderte.The fact that the rollers run on their top side from the roller gap to the hopper walls enables them to loosen and tear up the waste, whereas previous machines were more likely to compact the waste in the roller gap, which reduced the cutting performance.
Der dergestalt in der erfindungsgemässen Maschinen aufgelockerte Müll wird nun von dem zwischen den Trichterzähnen hindurchtretenden Walzenzähnen leichter zerkleinert.The garbage thus loosened up in the machines according to the invention is now removed from that between the funnel teeth crushed through rolling teeth easier.
Kommt es aber trotzdem einmal dazu, dass etwas einfach nicht innerhalb der Grenzbelastung schneidbar ist, so werden die Trichterzähne in Ruhestellung gebracht, also von der Walze entfernt werden. Das unschneidbare Material kann nach unten an der Walze und an der Trichterwand vorbei durchtreten und die Trichterzähne können in ihre Ausgangslage zurückkehren. Der Trichter kann nicht verstopfen und braucht nie von oben notfallmässig entlehrt zu werden. Man kann darum den Trichter direkt mit grossen Mengen Sperrmüll beschicken, während man bislang nur kleine Portionen hineingeben konnte, die beim Blockieren auch noch nach oben entfernbar waren.If, however, it happens that something simply cannot be cut within the limit load, the funnel teeth are brought into the rest position, i.e. removed from the roller. The material that cannot be cut can pass downwards past the roller and past the funnel wall and the funnel teeth can return to their starting position. The funnel cannot become blocked and never needs to be emptied from above in an emergency. It is therefore possible to load the funnel directly with large quantities of bulky waste, whereas previously it was only possible to add small portions which could also be removed upwards when blocked.
Weil die Walzen voneinander hinweg arbeiten, beeinträchtigt ein Langsamerwerden oder ein Stillstand der einen Walze die andere Walze nicht unbedingt. Einzelantriebe können zu praktisch vollkommener Unabhängigkeit der Walzen führen. Bei bekannten Maschinen sind die Walzen selbst bei Einzelantrieben so stark miteinander durch die ineinandergreifenden Zähne und das zu zerkleinernde Material "verknüpft", dass sie zwangsläufig immer zusammen laufen oder stehen müssen.Because the rollers work away from each other, slowing down or a standstill of one roller does not necessarily affect the other roller. Single drives can lead to practically complete independence of the rollers. In known machines, even in the case of individual drives, the rollers are so "linked" to one another by the intermeshing teeth and the material to be shredded that they inevitably always have to run or stand together.
Vorteilhaft ist es, wenn die Trichterzähne jedes Trichterwandbereichs um eine zu den Walzen achsparallele Schwenkachse schwenkbar sind, welche Achse sich in der Regel oberhalb der Trichterzähne befindet, weil dann ein grosser Bereich zur Freigabe gelangen kann und quasi eine Erweiterung des Trichters selbst erfolgt.It is advantageous if the funnel teeth of each funnel wall area can be pivoted about a pivot axis that is axially parallel to the rollers, which axis is usually above the funnel teeth, because a large area can then be released and the funnel itself is virtually expanded.
Ein Zwangsantrieb der Trichterzähne zu ihrer Bewegung in Ruhestellung und zurück in Arbeitsstellung hat den Vorteil, dass man die Zähne sehr starr in Arbeitsstellung halten kann und diese starre Halterung nur im Bedarfsfalle löst.A positive drive of the funnel teeth for their movement in the rest position and back in the working position has the advantage that the teeth can be held very rigidly in the working position and this rigid holder can only be released if necessary.
Auch dabei kann ein Hydraulikantrieb sehr gute Dienste leisten, dessen Druckveränderung zum Auslösen der Ruhestellungbewegung dienen kann.A hydraulic drive can also be very useful here perform, the pressure change can serve to trigger the rest position movement.
Man kann die Auslösung der Ruhestellung-Bewegung der Trichterzähne aber auch vom Betriebsdruck des Walzenantriebs alleine oder zusammen mit dem Betriebsdruck des Trichterzähneantriebs ableiten.The triggering of the rest position movement of the funnel teeth can also be derived from the operating pressure of the roller drive alone or together with the operating pressure of the funnel tooth drive.
Wie dem auch sei, man kann eine Trichterzahnreihe in Ruhestellung bewegen, ohne die andere Reihe zu beeinträchtigen, so dass mindestens die halbe Maschinenleistung erhalten bleibt.However, one row of funnel teeth can be moved in the rest position without affecting the other row, so that at least half the machine output is retained.
Damit das geschnittene Material nicht nur dort nach unten gelangen kann, wo es ein Walzenzahn nach unten mitnimmt, ist es bevorzugt, dass zwischen den (bis nahe an die betreffenden Trichterzähne reichenden) Ringzonen, auf welchen die Walzenzähne angeordnet sind, Ringnuten vorgesehen sind, welche jeweils von dem ihnen gegenüberliegenden Trichterzahn erheblich zurückweichend dimensioniert sind. Es kann aber dann trotzdem kein unzerschnittenes Material durchfallen, weil ja die zähnetragenden Ringzonen sehr nahe an die Trichterzähne heranreichen.So that the cut material can not only go down where a roller tooth takes it down, it is preferred that ring grooves are provided between the ring zones (which extend close to the relevant funnel teeth) on which the roller teeth are arranged, which are each dimensioned significantly retreating from the opposite funnel tooth. However, no uncut material can still fall through because the tooth-bearing ring zones come very close to the funnel teeth.
Ein Versatz der Walzenzähne in Umfangrichtung steigert Insofern die Schneidleistung, als immer nur ein Teil oder gar nur einer der Walzenzähne schneidend wirkt.An offset of the roller teeth in the circumferential direction increases the cutting performance insofar as only a part or even only one of the roller teeth has a cutting effect.
Bei der erfindungsgemässen Maschine erfolt im Walzenspalt kein Schneiden, weshalb dort auch kein Ineinandergreifen der Walzenzähne nötig ist. Im Gegenteil, es ist von Vorteil wenn die Walzenzähne nur gerade bis nahe an den Walzenspalt heranreichen, weil dies ihre Auflockerungswirkung beim Auseinanderreissen des Mülls fördert und den Trichterquerschnitt bei gleicher Walzendimension zu maximieren erlaubt.In the machine according to the invention, no cutting takes place in the roller gap, which is why there is no need for the roller teeth to interlock. On the contrary, it is advantageous if the roller teeth only reach just up to the roller gap, because this promotes their loosening effect when the waste is torn apart and allows the funnel cross-section to be maximized with the same roller dimension.
Die anwendbaren grossen Kräfte machen schon bei bekannten Maschinen einen Einzelantrieb jeder Walze wünschenswert, weil Getrieberäder unter solchen Bedingungen rasche verschleissen und auch sonst teuer sind. Bei der erfindungsgemässen Maschine fördern solche Einzelantriebe der Walzen auch deren Unabhängigkeit, sind also doppelt nützlich.The large forces that can be applied are already known machines, a single drive of each roller is desirable because under such conditions gear wheels wear out quickly and are otherwise expensive. In the machine according to the invention, such individual drives of the rollers also promote their independence, so they are doubly useful.
Für besonders wirtschaftlich wird ein Hydraulikantrieb gehalten, welcher mit wechselweise durch Hydraulikeinheiten angetriebenen Freiläufen operiert.A hydraulic drive which operates with freewheels alternately driven by hydraulic units is considered to be particularly economical.
Die Erfindung wird nachstehend an der rein schematischen Zeichnung einer erfindungsgemässen Maschine beispielsweise erläutert.The invention is explained below using the purely schematic drawing of a machine according to the invention, for example.
Es zeigen:
- Fig. 1 eine Draufsicht auf die Maschine,
- Fig. 2 einen Schnitt nach Linie II-II in Fig. 1, und
- Fig. 3 einen Walzenantrieb bevorzugter Art.
- 1 is a plan view of the machine,
- Fig. 2 shows a section along line II-II in Fig. 1, and
- Fig. 3 shows a roller drive of a preferred type.
Die in den Fig. 1 und 2 dargestellte Maschine 2 besitzt einen Trichter 2, in welchem zwei Walzen 3 zueinander parallel angeordnet sind.The machine 2 shown in FIGS. 1 and 2 has a hopper 2 in which two
Der Trichter 2 hat zwei zu den Walzen 3 parallele Trichterbereiche 20, welche am unteren Rand Trichterzähne 21 tragen. Jeder der Trichterbereiche 20 ist um eine zu den Walzen 3 parallele Achse 22 mittels zugehöriger Hydraulikzylinder 23 aus seiner Arbeitsstellung (in Fig. 1 alleine und in Fig. 2 rechts dargestellt) in seine Ruhestellung (in Fig. 2 links dargestellt) und umgekehrt schwenkbar.The funnel 2 has two
Jede der Walzen 3 hat in Umfangrichtung versetzte Zähne 30, auf in axialer Richtung beabstandeten Ringzonen 31 und dazwischenliegende Ringnuten 32.Each of the
Die Walzenzähne 30 reichen in der Mitte bis an den Walzenspalt 33 und greifen zwischen die Trichterzähne 21, wenn sich die Trichterbereiche 20 in der (in Fig. 1 alleine und in Fig. 2 rechts gezeichneten) Arbeitsstellung befinden. Dann reichen auch die Ringzonen 31 bis nahe an die Trichterzähne 21 heran, wogegen die Rignuten 32 von den jeweilen ihnen gegenüberliegenden Trichterzähnen 21 beabstandet sind, damit Schnittgut von den Trichterzähnen herabfallen kann.The
Jede Walze 3 ist durch ihren eigenen hydraulischen Walzenantrieb 4 (vgl. Fig. 1 und 3) einzeln antreibbar. Jeder Walzenantrieb 4 hat (vgl. Fig. 3) zwei gleichgerichtete Freiläufe 40, 41, deren jeder mit einem Hebel 42, 43 wirkverbunden ist. Je ein Hydraulikzylinder 44, 45 ist mit jedem Hebel 42, 43 wirkverbunden.Each
Eine Steuerung 5 sorgt für die lagegemässe Beschickung der Hydraulikzylinder 23, 44 und 45 mit Hydrauliköl aus der Pumpeneinrichtung 50 (vgl. Fig. 1).A
Solange das von oben in den Trichter 2 fallende Material (nicht dargestellt) schneidbar ist, sind die Trichterbereiche 20 in der Arbeitsstellung und die Walzen 3 drehen sich oben vom Walzenspalt 33 hinweg zu den Trichterzähnen 21 hin.As long as the material falling into the funnel 2 from above (not shown) can be cut, the
Klemmt sich unschneidbares Gut zwischen die Trichterzähne 21 einerseits und die Walzenzähne 30 andererseits, so bringt die den Druck in den Hydraulikzylindern 44, 45 überwachende Steuereinrichtung 5 die Hydraulikzylinder 23 des einen oder beider Trichterbereiche 20 in Rückzugsbewegung, wodurch der betreffende Trichterbereich 20 oder beide Trichterbereiche 20 von der zugehörigen Walze 3 hinweggeschwenkt in Ruhestellung geht. Das eingeklemmte Material kann nach unten durchtreten, der Druck in den Hydraulikzylindern 44, 45 des Walzenantriebs 4 normalisiert sich, und die Steuerung 5 lässt die Hydraulikzylinder 23 den oder die betreffenden Trichterbereich(e) in Arbeitsstellung zurückschwenken.If uncut material sticks between the
Gezeichnet ist eine Maschine, bei der alle Trichterzähne einer Trichterseite zusammen mit dem Trichterbereich gemeinsam schwenkbar sind. Man kann auch Zahngruppen und einzelne Trichterzähne allein schwenkbar machen, wenn dies die Art des Materials nötig erscheinen lässt.A machine is drawn in which all the funnel teeth on one funnel side can be pivoted together with the funnel area. You can also make groups of teeth and individual funnel teeth pivotable on their own if this makes the type of material appear necessary.
Man kann nach der Erfindung, wie gezeichnet, grobe Zähne vorsehen, weil die Einzelkräfte gross sein können, ohne Risiken zu laufen. Das ist konstruktiv vorteilhaft.According to the invention, rough teeth can be provided, as shown, because the individual forces can be large without running any risks. This is structurally advantageous.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85109625T ATE47047T1 (en) | 1985-07-17 | 1985-07-31 | ROLLER CUTTING MACHINE FOR SHREDDING BULKY WASTE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3105/85 | 1985-07-17 | ||
CH3105/85A CH669340A5 (en) | 1985-07-17 | 1985-07-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0208806A2 true EP0208806A2 (en) | 1987-01-21 |
EP0208806A3 EP0208806A3 (en) | 1987-09-16 |
EP0208806B1 EP0208806B1 (en) | 1989-10-11 |
Family
ID=4248726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85109625A Expired EP0208806B1 (en) | 1985-07-17 | 1985-07-31 | Roller cutting apparatus for the size reduction of bulky refuse |
Country Status (6)
Country | Link |
---|---|
US (1) | US4690337A (en) |
EP (1) | EP0208806B1 (en) |
JP (1) | JPS6223456A (en) |
AT (1) | ATE47047T1 (en) |
CH (1) | CH669340A5 (en) |
DE (1) | DE3573537D1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1304169A3 (en) * | 2001-10-18 | 2003-08-13 | Heissenberger & Pretzler Ges.m.b.H. | Shredder device |
CN103157538A (en) * | 2011-12-15 | 2013-06-19 | 沈锦海 | Material-poking device of crusher |
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JPH0622440Y2 (en) * | 1988-05-13 | 1994-06-15 | 手塚興産株式会社 | Crushing machine |
US5102059A (en) * | 1989-08-07 | 1992-04-07 | Ab Sandarne Industrimaskiner | Disintergrating apparatus |
US5427321A (en) * | 1992-07-03 | 1995-06-27 | Meiden Plant Engineering & Construction Co., Ltd. | Waste paper processing system |
SE502897C2 (en) * | 1994-04-21 | 1996-02-12 | Arne Ohlson | Cutting device with a movable and fixed cutting means |
US5477900A (en) * | 1995-03-15 | 1995-12-26 | Gray; David A. | Non-jamming pulpwood chipper chute and spout assembly |
US5722604A (en) * | 1995-04-18 | 1998-03-03 | Dudley; Russell D. | Metal scrap shredder |
US5746378A (en) * | 1995-06-23 | 1998-05-05 | Marathon Equipment Company | Volume reduction machine |
US5971305A (en) * | 1997-07-21 | 1999-10-26 | Davenport; Ricky W. | Rotary shredder |
SE514144C2 (en) * | 1997-04-14 | 2001-01-08 | Andritz Patentverwaltung | Method and apparatus for preventing or loosening the blockage caused by an input stump to a chopped tree trunk |
DE10006757C1 (en) | 2000-02-15 | 2001-05-17 | Mayfran Int Bv | Crushing process for chips or swarf, involving recording rate of alteration of load to detect blocking chips and ejecting these chips |
JP2002001148A (en) * | 2000-06-15 | 2002-01-08 | Nissui Kako Kk | Pulverizing device |
US6941987B2 (en) * | 2003-06-09 | 2005-09-13 | Cem Machine, Inc. | Apparatus for clearing log jams in disc type chipper |
US20050218253A1 (en) * | 2004-03-30 | 2005-10-06 | Hess D D | Device and method for shredding materials |
US20100282885A1 (en) * | 2007-04-27 | 2010-11-11 | Jesus Perez Santafe | Grinding container for the selective collection of solid urban waste and various special adaptations for each type of waste, including a domestic grinding container |
US8051887B2 (en) * | 2009-11-04 | 2011-11-08 | Cem Machine, Inc. | Primary and counter knife assembly for use in wood chipper |
NL2009580C2 (en) * | 2012-10-05 | 2014-04-08 | Galiën Hannie | REDUCER FOR REDUCING COARSE MATERIAL AND METHOD FOR THIS. |
CA2859563C (en) * | 2013-08-20 | 2022-05-31 | Gyro-Trac Corporation | Brush chipper assembly with counter-rotating feeder rollers and chipping heads |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE2049124A1 (en) * | 1970-10-07 | 1972-04-13 | Bohmter Maschinenfabrik Gmbh & Co Kg, 4508 Bohmte | Machine for shredding bulky goods |
DE1507485B2 (en) * | 1964-07-10 | 1974-04-18 | Detroit Stoker Co., Monroe, Mich. (V.St.A.) | Waste shredding device |
DE2208537B2 (en) * | 1971-02-23 | 1979-06-13 | Bencorp Industries Ltd., North Vancouver, British Columbia (Kanada) | Gauze processing device |
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US2243492A (en) * | 1939-07-20 | 1941-05-27 | Harry T Floyd | Meat tenderizer |
US4385732A (en) * | 1980-08-29 | 1983-05-31 | Williams Robert M | Waste material breaking and shredding apparatus |
-
1985
- 1985-07-17 CH CH3105/85A patent/CH669340A5/de not_active IP Right Cessation
- 1985-07-31 DE DE8585109625T patent/DE3573537D1/en not_active Expired
- 1985-07-31 EP EP85109625A patent/EP0208806B1/en not_active Expired
- 1985-07-31 AT AT85109625T patent/ATE47047T1/en not_active IP Right Cessation
- 1985-12-16 US US06/809,326 patent/US4690337A/en not_active Expired - Fee Related
-
1986
- 1986-07-14 JP JP61163919A patent/JPS6223456A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1507485B2 (en) * | 1964-07-10 | 1974-04-18 | Detroit Stoker Co., Monroe, Mich. (V.St.A.) | Waste shredding device |
DE2049124A1 (en) * | 1970-10-07 | 1972-04-13 | Bohmter Maschinenfabrik Gmbh & Co Kg, 4508 Bohmte | Machine for shredding bulky goods |
DE2208537B2 (en) * | 1971-02-23 | 1979-06-13 | Bencorp Industries Ltd., North Vancouver, British Columbia (Kanada) | Gauze processing device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1304169A3 (en) * | 2001-10-18 | 2003-08-13 | Heissenberger & Pretzler Ges.m.b.H. | Shredder device |
CN103157538A (en) * | 2011-12-15 | 2013-06-19 | 沈锦海 | Material-poking device of crusher |
Also Published As
Publication number | Publication date |
---|---|
EP0208806A3 (en) | 1987-09-16 |
ATE47047T1 (en) | 1989-10-15 |
JPS6223456A (en) | 1987-01-31 |
EP0208806B1 (en) | 1989-10-11 |
CH669340A5 (en) | 1989-03-15 |
DE3573537D1 (en) | 1989-11-16 |
US4690337A (en) | 1987-09-01 |
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