EP0253232A2 - Dispositif de broyage pour résidus végétaux - Google Patents

Dispositif de broyage pour résidus végétaux Download PDF

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Publication number
EP0253232A2
EP0253232A2 EP87109586A EP87109586A EP0253232A2 EP 0253232 A2 EP0253232 A2 EP 0253232A2 EP 87109586 A EP87109586 A EP 87109586A EP 87109586 A EP87109586 A EP 87109586A EP 0253232 A2 EP0253232 A2 EP 0253232A2
Authority
EP
European Patent Office
Prior art keywords
cutting tool
insertion channel
channel
insertion opening
shredding
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
Application number
EP87109586A
Other languages
German (de)
English (en)
Other versions
EP0253232A3 (en
EP0253232B1 (fr
Inventor
Rudolf Wöhrle
Richard Lechler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OFFERTA DI LICENZA AL PUBBLICO
Original Assignee
Alois Kober GmbH
Al Ko Kober SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alois Kober GmbH, Al Ko Kober SE filed Critical Alois Kober GmbH
Publication of EP0253232A2 publication Critical patent/EP0253232A2/fr
Publication of EP0253232A3 publication Critical patent/EP0253232A3/de
Application granted granted Critical
Publication of EP0253232B1 publication Critical patent/EP0253232B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C18/16—Details
    • 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
    • B02C18/12—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged below container
    • 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
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2291—Feed chute arrangements
    • 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 shredding device for plant remains with a holding device for filling the material to be shredded and with an additional knot holding device for inserting knot material, which is guided as an insertion channel up to the optimum working area of a cutting tool rotatably mounted in the device.
  • a motor-driven shredding device for plant remains with a knife housing arranged on a frame supporting the drive motor and having a laterally opening ejector channel is known, in which there is a knife carrier disk to be driven around a central, vertical axis, with radial through-slots and above it is provided with shredding knives arranged at a distance like planer knives.
  • the knife housing there are two feed hoppers for the separate feeding of easily and hard-to-shred material, such as thin branches and leaves on the one hand, and thicker branches and branches on the other hand, with the filling funnel for the hard-to-shred material up to close to the orbit of the shredding knife reaches diagonally downwards and the hopper for the easily comminuted material is arranged above the orbit of comminution vanes connected to the knife carrier disc.
  • easily and hard-to-shred material such as thin branches and leaves on the one hand, and thicker branches and branches on the other hand
  • Branch picking devices built according to this regulation can therefore only insert straight branches or branch sections.
  • the branches obtained for shredding are branched, angularly shaped, kinked or otherwise irregularly shaped, which is why one is forced to use pruning shears, knives or the like to process these branches and prepare them so that they can be inserted into the branch receiving device.
  • the invention has for its object to significantly reduce this high effort for the preparation of the branches before insertion into the branch picking device of shredding devices and a branch picking device propose which allows branched, crooked branches or the like to be introduced without ignoring the safety regulations.
  • the solution to this problem according to the invention is that the insertion opening of the branch receiving device is shaped like an elongated hole, in particular like a keyhole, and only part of the insertion channel is guided to the optical effective area of the cutting tool.
  • the longitudinal extent of the insertion opening should preferably be arranged transversely to the vertical.
  • This term of the keyhole-like design of the insertion opening is understood to mean a change in the previously known insertion cross section of the branch receiving device, according to which a wider but narrower section of the entry opening follows the previously mostly cylindrical pipe cross section, it being important that the height of the adjoining section corresponds exactly to the technical regulations. In a preferred embodiment of the invention, this height is 30 mm or less, whereas the width of this section of the insertion opening can be considerably larger.
  • the insertion opening according to the invention is now simulated exactly or only similar to a keyhole can remain meaningless because it is important to widen the previously known insertion cross-section for the branch receiving device without having to put up with an extension of the insertion channel. According to the invention, it is also sufficient to design the insertion opening as an elongated hole.
  • the invention offers the possibility of being able to insert branches with their branches, as well as crooked or otherwise unfavorably shaped branches, stems or the like, into the receiving device of the invention without having to prepare them beforehand with scissors or knives.
  • the supply of such branches to the optimal cutting area of the cutting tool is ensured, which has the consequence that the inserted objects are cut in a pulling cut with branch support. Therefore, no whipping of the branches, twigs or the like can occur during insertion and machining.
  • the result is a smoother operation of the shredding device according to the invention, which allows greater power with the same engine installation.
  • the functionality of the chopper according to the invention is significantly expanded and improved compared to the previously known designs.
  • the inlet channel containing the insertion opening has a wall constriction which determines the maximum inlet cross section and then an inward cross section thereafter.
  • This constriction of the wall takes into account the technical regulations, thus preventing a human hand from being completely inserted into the insertion channel, but it is certainly possible to reach into the insertion channel with your fingers without risk and press any remnants against the cutting tool.
  • the funnel-shaped extensions in front of and behind the wall constriction allow easier handling of the branches, stems or the like to be shredded.
  • the insertion channel having the keyhole-like insertion opening has k-shaped, tapering wall areas in the direction of the optimum effective range of the cutting tool.
  • Such wall areas can be arranged rigidly or also movably. It is advisable to arrange at least one of the wedge-shaped tapering wall areas in a resilient manner, for example to design it as a rotatable flap. In its rest position, the resilient wall area or the flap narrows the cross section of the insertion channel, which leads to branches, stems or the like being fed directly to the optimum effective area of the cutting tools.
  • this resilient wall area is moved out of its basic position under the influence of the introduced goods, but there is always a guiding effect, namely bringing the goods close to the optimal cutting area.
  • the part of the movable wall area facing the cutting tool can be provided with profiles, for example corrugations, which create a retention effect, so that the material fed to the cutting knives can be prevented from springing back or evading during the cutting process.
  • the invention provides, within the scope of an embodiment, that a channel section having the inside edge of the insertion channel, possibly the entire insertion channel, is arranged so as to be adjustable against the cutting tool. In this way it is possible to change the distance between this edge and the plane of action of the cutting tools and the nature of the material to be fed adapt.
  • FIG. (1) The comminution device for plant remains shown in FIG. (1) represents only one of numerous different constructions from which the invention is independent and only serves to explain the teaching of the invention.
  • the shredding device (1) then consists of a housing (2) which sits on a stand (3) and has a holding device (4) for easily shredded material, such as thin branches, leaves and the like. Because one could engage in this receiving device (4) with the entire arm, the length of the housing (2) is so due to technical regulations designed that there is no chance of reaching the pre-cutting tool (7) which is rotatably mounted and driven at the lower end of the housing (2).
  • a branch pick-up device (5) is arranged as close as possible to a cutting tool (8) and serves to introduce branches, stems or other stiffer material into the shredding device (1). Because the length L is relatively short due to the desired arrangement, the cross-section of the insertion opening (13) must be relatively small due to the technical regulations in order to avoid having to reach into the branch pick-up device (5) by hand and to engage the cutting tool (8 ) can hurt.
  • the branch pick-up device (5) consists of an insertion channel (6), which is preferably welded to the housing (2) and the wall of which is guided close to the plane of action of the cutting tool (8).
  • the guiding direction is selected so that the objects that are carried through reach the optimal cutting area (19) of the cutting tool (8) (see FIGS. (4 and 5)).
  • the insertion channel forming a type of stop or counter knife, without the cutting tools (8) needing to come into direct contact with the insertion channel (6) .
  • Fig. (1) also shows below the cutting tool (8) an ejector (9) which conveys the machined material through the ejection channel (10). All rotating objects are driven by the drive motor (11) which is connected to the stand (3).
  • Both the receiving device (4) and the branch receiving device (5) have funnel-shaped extensions (12) in order to facilitate the introduction of the material to be cut into the introduction devices.
  • the cross section of the insertion opening (13) into the insertion channel (6) is generally circular or cylindrical.
  • the known cross sections are oval or prismatic.
  • the known insertion channel (6) is tubular with a technically limited cross-section, from which the cross-section of the insertion opening (13) according to the invention — as shown in FIG. (2) — differs considerably. This is because a narrow extension (15) extends from the cylindrical part (14) of the insertion opening (13), preferably in the horizontal direction, which therefore substantially increases the width of the insertion opening (13) but narrows the height H.
  • This design of an insertion opening according to the invention shown in FIG. (2) in the example is defined as keyhole-like, it being irrelevant whether the exact shape of a keyhole is used. It is essential that the height H of the narrow extension (15) of the insertion opening (13) complies with the safety regulations, which is the case with a relatively short length L (FIG. (1)) when the height H is equal to or less than 30 mm is. It is therefore not possible to reach into the insertion channel (6) by hand, but only with the fingers.
  • the height H of the insertion channel (6) can be achieved by means of a wall constriction (16).
  • a wall constriction (16) In front of this constriction of the wall (16) there is a funnel-shaped extension (12) which facilitates the insertion of the spreading material into the insertion channel (6).
  • a cross-sectional widening (17) of the insertion channel (6) behind the wall constriction (16) which allows a resilient spreading of the introduced material and thus reduces the friction during insertion without human limbs in the area of the area shown in Fig. ( 1) shown cutting tools (8) can get.
  • cross section of the part (14) of the insertion opening (13) is circular, oval or prismatic; likewise the narrow continuation (15) can be elongated, rectangular, wedge-shaped or the like.
  • Fig. 3 it is also shown that the edge (18) of the cylindrical part (14) of the insertion channel (6) is close to the plane of action (28) of the cutting tool (8).
  • the branches, stems or the like are thus brought up to the cutting tool (8) and held in place under the cutting pressure of the cutting tool (8).
  • the arrow (27) in Fig. (3) indicates that one of the edge (18) having a portion of the insertion channel (6) or the entire insertion channel against the plane of action (28) of the cutting tool (8) or in the opposite direction can, in order to achieve the most favorable distance from the edge (18) of the plane of action (28) of the cutting tool (8). It is disregarded to show the constructive design of such movable insertion channels (6) because these Is known to experts.
  • Figures (4 and 5) show a kind of top view of the optimal cutting area (19) of a cutting tool (8) when it rotates in the direction of the arrow (20). While the insertion channel (6) is guided with its entire lateral surface up to the cutting tool (8) in previously known shredding devices, in the exemplary embodiment of FIGS. 4 and 5 only a partial area of the jacket area of the insertion channel, more precisely the cylindrical part (14) of the insertion channel (6) up to the cutting tool (8). The jacket region of the insertion channel (6), which extends against the direction of rotation (20) of the cutting tool (8), is left out. The reason is as follows: According to Fig.
  • a wall area (21) of the insertion channel (6) is wedge-shaped, and this is the wall area which is opposite to the direction of rotation (20) of the cutting tool (8).
  • the branches can no longer be inserted obliquely into the insertion channel (6) so that their direction of advance against the direction of rotation (20) of the cutting tool (8) would lead to jerky and unpleasant machining loads. This provides a guide to the optimal cutting area (19).
  • a movable wall area in the form of a flap (22) can also serve the same purpose.
  • This flap (22) is pivotally mounted in the joint (23) on the insertion channel (6) and is loaded with a spring (24), for example a torsion spring, which presses the flap (22) into the position shown in FIG. (2). In this position, the flap (22) is locked clockwise against any further direction of rotation by means of the stop (25).
  • a branch, stem or the like guided against the flap (22) is thus in its Direction of feed deflected and guided in the direction of the optimal cutting area (19) of the cutting tool (8).
  • the flap (22) can be displaced against the action of the spring (24), for example up to the dashed position according to. Fig. (5), without there being a risk that the imported material against the direction (20) of the cutting tool (8) is machined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP87109586A 1986-07-15 1987-07-03 Dispositif de broyage pour résidus végétaux Expired - Lifetime EP0253232B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8618942U DE8618942U1 (de) 1986-07-15 1986-07-15 Zerkleinerungsgerät für Pflanzenreste
DE8618942U 1986-07-15

Publications (3)

Publication Number Publication Date
EP0253232A2 true EP0253232A2 (fr) 1988-01-20
EP0253232A3 EP0253232A3 (en) 1988-11-30
EP0253232B1 EP0253232B1 (fr) 1990-12-12

Family

ID=6796495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109586A Expired - Lifetime EP0253232B1 (fr) 1986-07-15 1987-07-03 Dispositif de broyage pour résidus végétaux

Country Status (2)

Country Link
EP (1) EP0253232B1 (fr)
DE (2) DE8618942U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984747A (en) * 1988-06-15 1991-01-15 Lechner Magister H Chopping- and slicing machine
DE9211200U1 (de) * 1992-08-20 1992-12-24 Viking-Umwelttechnik GmbH, Kufstein Aufnahmevorrichtung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2014370B1 (fr) * 2007-07-12 2018-11-14 Andreas Stihl AG & Co. KG Hache
EP2014371B1 (fr) * 2007-07-12 2013-11-06 Viking GmbH Hache
EP2072137B1 (fr) * 2007-12-21 2019-05-15 Robert Bosch Gmbh Déchiqueteuses de végétaux

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650485A (en) * 1970-02-17 1972-03-21 George K Brokaw Chopping device
AU543000B2 (en) * 1981-05-15 1985-03-28 Rover-Scott Bonnar Ltd. Shredding machine
DE8311394U1 (de) * 1983-04-16 1983-09-22 As-Motor Gmbh U. Co Kg, 7163 Oberrot Zerkleinerungsvorrichtung, insbesondere fuer zweige und aeste von baeumen und strauchwerk

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4984747A (en) * 1988-06-15 1991-01-15 Lechner Magister H Chopping- and slicing machine
EP0346661A3 (fr) * 1988-06-15 1991-06-26 Viking-Umwelttechnik Gesellschaft m.b.H. Appareil hacheur découpeur
EP0551143A3 (fr) * 1988-06-15 1994-04-13 Viking Umwelttechnik
DE9211200U1 (de) * 1992-08-20 1992-12-24 Viking-Umwelttechnik GmbH, Kufstein Aufnahmevorrichtung
EP0593855A3 (en) * 1992-08-20 1994-05-18 Viking Umwelttechnik Feeding device

Also Published As

Publication number Publication date
EP0253232A3 (en) 1988-11-30
DE3766665D1 (de) 1991-01-24
DE8618942U1 (de) 1986-10-02
EP0253232B1 (fr) 1990-12-12

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