EP4056340B1 - Coupeuse-fendeuse - Google Patents

Coupeuse-fendeuse Download PDF

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Publication number
EP4056340B1
EP4056340B1 EP22159070.6A EP22159070A EP4056340B1 EP 4056340 B1 EP4056340 B1 EP 4056340B1 EP 22159070 A EP22159070 A EP 22159070A EP 4056340 B1 EP4056340 B1 EP 4056340B1
Authority
EP
European Patent Office
Prior art keywords
circular saw
cutting
folding cover
machine
splitting
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
Application number
EP22159070.6A
Other languages
German (de)
English (en)
Other versions
EP4056340A1 (fr
Inventor
Marko POLAK
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.)
Uniforest doo
Original Assignee
Uniforest doo
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 Uniforest doo filed Critical Uniforest doo
Priority to SI202230020T priority Critical patent/SI4056340T1/sl
Publication of EP4056340A1 publication Critical patent/EP4056340A1/fr
Application granted granted Critical
Publication of EP4056340B1 publication Critical patent/EP4056340B1/fr
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/10—Wheeled circular saws; Circular saws designed to be attached to tractors or other vehicles and driven by same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/16—Saw benches
    • B27B5/18—Saw benches with feedable circular saw blade, e.g. arranged on a carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G21/00—Safety guards or devices specially designed for other wood-working machines auxiliary devices facilitating proper operation of said wood-working machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L7/00—Arrangements for splitting wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L7/00—Arrangements for splitting wood
    • B27L7/06—Arrangements for splitting wood using wedges, knives or spreaders

Definitions

  • the invention relates to a cutting and splitting machine for cutting sawlog into individual pieces and splitting sawlog pieces into shopped wood.
  • the cutting and splitting machine has a section for cutting sawlog into individual pieces and a section for splitting sawlog pieces into chopped wood.
  • the sections are normally arranged side by side.
  • Cutting and splitting machines with two different layouts for the cutting section and the splitting section are known from the prior art.
  • the sections are arranged side by side in a horizontal direction.
  • a circular saw cuts a piece of a sawlog to a predetermined length in the cutting section, a push hatch then rolls the cut sawlog piece into the splitting section where a splitting knife splits the sawlog piece into chopped wood.
  • the sections are arranged on top of each other in a vertical direction.
  • a circular saw cuts a piece of a sawlog to a predetermined length in the cutting section, a retaining hatch retracts to allow the cut sawlog piece to fall, under the force of gravity, into the splitting section where a splitting knife splits the sawlog piece into chopped wood.
  • the circular saw always moves perpendicularly to the sawlog.
  • the length of travel of the circular saw is equal to or greater than the maximum nominal diameter of the sawlog.
  • the circular saw can, in principle, move either in horizontal or vertical direction, or at an angle between horizontal and vertical direction. The circular saw must be protected at all times, both for safety at work and for the proper discharge of sawdust generated during the cutting process.
  • guards There are two types of guards: fixed (immovable), usually mounted on the frame of the machine, and movable, which moves with the circular saw during the cutting process. If a movable guard is used in horizontal cutting and splitting machines, the feed area must also be protected for safety reasons.
  • Cutting and splitting machines are often used where trees are felled, i.e. in the forest.
  • Logging roads are generally gravel roads, narrow and uneven.
  • a disadvantage of horizontal cutting and splitting machines is the large width of the machine, i.e. the dimension of the machine, that is transverse to the direction of travel, which poses a problem in transporting it. While the width of the machine is not a problem in vertical cutting and splitting machines, the problem is the significantly increased dimensions of the machine in the vertical direction, which affects the higher centre of gravity of the machine and reduces its stability.
  • vertical cutting and splitting machines require a platform for the machine operator to climb on to operate and monitor the operation, and a significantly higher sawlog feeder is required than in the case of the horizontal variant of the machine.
  • a good compromise between the requirement for a small height and a small width of the machine seems to be a horizontal cutting and splitting machine with a vertical movement of the circular saw, but such a configuration prevents the simultaneous operation of the cutting section and the splitting section, as the circular saw at least partially encroaches on the splitting area during its working stroke.
  • the technical problem is how to configure a cutting and splitting machine with a relatively small width and a relatively low centre of gravity, which is suitable for transport on narrow and uneven logging roads, and which will allow efficient operation, i.e. will allow a simultaneous operation of the cutting and splitting sections.
  • the circular saw When transporting the cutting and splitting machine, the circular saw is locked in the position corresponding to its final position. Locking the circular saw in the end position is important from a safety point of view, but is not the subject of the invention. It can be implemented in different ways depending on the design of the machine. If the machine is equipped with electronic controls, locking can easily be done electronically. If the machine is not electronically controlled, the locking of the circular saw is also done mechanically. An example of such locking is described below.
  • the folding cover with its longitudinal dimension, is positioned adjacent to the housing of the splitting machine when the machine is ready to be transported, thus ensuring a reduced width of the cutting and splitting machine during transport.
  • An advantage of the cutting and splitting machine according to the invention is that, despite the horizontal layout of the cutting and splitting sections, the cutting and splitting machine has a relatively small width due to the folding cover, which allows transportation on narrow paths.
  • the machine allows efficient operation, i.e. it allows a simultaneous operation of the cutting and splitting sections.
  • a further advantage of the cutting and splitting machine according to the invention is that, due to the horizontal layout of its cutting and splitting sections the machine has a low centre of gravity, which provides greater stability of the cutting and splitting machine during transport, and a relatively low machine height, which enables the operator of the machine to operate and control the machine from the ground.
  • a cutting and splitting machine 1 comprising: a housing 2 of the machine with an attachment piece 3 having a rectangular through hole 4,
  • the circular saw 8 performs a working stroke in which a piece of a sawlog is cut by moving from the initial position A to the final position B. In a reciprocal, non-working stroke, the circular saw returns from the final position B to the initial position A.
  • the circular saw guide mechanism may be formed by linear circular saw guides or by an arm, one end of which is hinged in the machine housing and the other end of which is pivotally mounted to the circular saw.
  • Substantially horizontal guiding of the circular saw means that the circular saw is guided in a linear guide oriented in an essentially horizontal direction, or the circular saw is hinged by means of the arm so that it moves in a circular arc, the bowstring of which is oriented in an essentially horizontal direction.
  • the longer side of the folding cover which is opposite the side with the two hinges, is provided with an extension 14 so that the extension covers the rectangular through hole 4 in the attachment piece of the housing in the transport position C of the folding cover, thereby preventing interference with the circular saw area.
  • the extension 14 In the operating position D of the folding cover, the extension 14 abuts the longer side of the attachment piece of the machine housing, thus ensuring an axial alignment of the folding cover 9 with the attachment piece 3 of the housing in the direction of guidance of the circular saw.
  • the folding cover 9 with its longitudinal dimension, is positioned adjacent to the housing of the splitting machine when the machine is ready to be transported, thus ensuring a reduced width of the cutting and splitting machine during transport.
  • the first fastening means 12 of the folding cover are released, the folding cover is moved linearly in the linear guide 11 to assume a position distant from the machine housing, is then rotated around the hinges 10 by substantially 90° to the working position D of the folding cover, in which it is axially aligned with the attachment piece 3 of the housing, and is fixed in that position by the second fastening means 13.
  • the circular saw 8 is then unlocked to allow its movement from the circular saw final position B to its initial position A and backwards.
  • the circular saw is thus protected at all times while the machine is running, i.e. the access of the machine user to the circular saw is prevented.
  • the procedure is carried out in reverse order to return the cutting and splitting machine back to a position suitable for transport.
  • the following describes an example of locking the circular saw 8 in its final position B for a mechanically operated cutting and splitting machine, where the reciprocating motion of the circular saw is carried out by means of a hydraulic cylinder acting unilaterally, which carries out a working stroke of the circular saw, while the reciprocate stroke is carried out by means of a spring.
  • Locking is carried out by means of a dedicated wrench 20, one end of which is adapted to engage a lever arm 21, which is concealed in the machine housing and accessible through a slot 22 in the machine housing.
  • the lever arm is then moved to the closed position, resulting in a valve 23 of the hydraulic cylinder being closed and a latch 24 of the machine cover being simultaneously moved, thereby locking a machine cover 25 so that it cannot be opened.
  • the circular saw By pulling the sawlog-cutting control lever, the circular saw is moved by the hydraulic cylinder to the final position B, where it remains due to the closed hydraulic valve. The drive of the circular saw rotation must be switched off.
  • the dedicated wrench 20 is to be removed from the lever arm.
  • the folding cover 9, which is locked in its operating position D, is then unlocked by means of the same dedicated wrench, the other end of which is adapted for locking or unlocking the folding lid, thereby releasing the folding cover and allowing it to be moved to its transport position C, in which it is fixed by means of the first fastening means 12.
  • the lock 26 of the folding cover is configured in such a way that the dedicated wrench cannot be removed from the lock when the folding cover is unlocked.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)
  • Nonmetal Cutting Devices (AREA)

Claims (5)

  1. Coupeuse-fendeuse (1) comprenant :
    un carter de machine (2),
    une section de fendage (5) pourvue d'un couteau de fendage (6) destiné à fendre des morceaux de grume de sciage en bois haché et disposée dans le carter,
    une section de coupe (7) disposée dans le carter et comprenant en outre une scie circulaire (8) pour couper une grume de sciage en morceaux et un mécanisme de guidage de scie circulaire qui guide la scie circulaire sensiblement horizontalement de la position initiale (A) de la scie circulaire à la position finale (B), c'est-à-dire la position de transport de la scie circulaire, et inversement, caractérisée en ce que le carter comporte une pièce de fixation (3) pourvue d'un trou traversant rectangulaire (4) à travers lequel la scie circulaire fait saillie au moins partiellement du carter dans la position initiale (A) de la scie circulaire, et en ce que la coupeuse-fendeuse comprend en outre un couvercle rabattable (9) ayant une section transversale rectangulaire dans un plan perpendiculaire à la direction de guidage de la scie circulaire, de sorte à s'adapter sensiblement géométriquement au trou traversant rectangulaire (4) dans la pièce de fixation et à recevoir une partie de la scie circulaire qui fait saillie du carter dans la position initiale de la scie circulaire, le couvercle rabattable (9) étant relié au carter de machine par deux charnières (10) qui sont guidées linéairement dans des guides de couvercle rabattable (11) disposés sur le carter de machine, de sorte que le couvercle rabattable puisse être déplacé linéairement de la position de transport (C) du couvercle rabattable, dans laquelle le couvercle rabattable est positionné adjacent au carter de machine, dans la direction de la course de la scie circulaire, à une position dans laquelle il est éloigné du carter de machine et peut ensuite pivoter autour de ses charnières jusqu'à la position de fonctionnement (D) du couvercle rabattable, dans laquelle il peut recevoir la scie circulaire dans sa position initiale (A), le couvercle rabattable (9) étant pourvu d'un premier moyen de fixation (12) pour fixer le couvercle rabattable dans sa position de transport (C) et d'un second moyen de fixation (13) pour fixer le couvercle rabattable dans sa position de fonctionnement (D).
  2. Coupeuse-fendeuse (1) selon la revendication 1, caractérisée en ce que le côté le plus long du couvercle rabattable, qui est opposé au côté doté des deux charnières, est pourvu d'une extension (14) de sorte que l'extension couvre le trou traversant rectangulaire (4) dans la pièce de fixation du carter dans la position de transport (C) du couvercle rabattable, et de sorte que dans la position de fonctionnement (D) du couvercle rabattable l'extension (14) vienne en butée contre le côté le plus long de la pièce de fixation du carter de machine.
  3. Coupeuse-fendeuse selon la revendication 1 ou 2, caractérisée en ce qu'elle est pourvue d'un moyen de verrouillage pour verrouiller la scie circulaire dans sa position finale (B).
  4. Coupeuse-fendeuse selon la revendication 3, caractérisée en ce que le moyen de verrouillage est un moyen de verrouillage électronique.
  5. Coupeuse-fendeuse selon la revendication 3, caractérisée en ce que le moyen de verrouillage est un moyen de verrouillage mécanique.
EP22159070.6A 2021-03-12 2022-02-28 Coupeuse-fendeuse Active EP4056340B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI202230020T SI4056340T1 (sl) 2021-03-12 2022-02-28 Rezalno cepilni stroj

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SI202100039A SI26174A2 (sl) 2021-03-12 2021-03-12 Rezalno cepilni stroj

Publications (2)

Publication Number Publication Date
EP4056340A1 EP4056340A1 (fr) 2022-09-14
EP4056340B1 true EP4056340B1 (fr) 2023-11-22

Family

ID=80785064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22159070.6A Active EP4056340B1 (fr) 2021-03-12 2022-02-28 Coupeuse-fendeuse

Country Status (3)

Country Link
EP (1) EP4056340B1 (fr)
FI (1) FI4056340T3 (fr)
SI (2) SI26174A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT526500B1 (de) * 2023-04-19 2024-04-15 Posch Gmbh Vorrichtung zum Sägen und Spalten von Holz

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3512793A1 (de) * 1985-04-10 1986-10-30 Maschinen GmbH Otto Hölz, 7988 Wangen Brennholzsaege mit spalteinrichtung

Also Published As

Publication number Publication date
FI4056340T3 (fi) 2024-01-26
SI26174A2 (sl) 2022-09-30
EP4056340A1 (fr) 2022-09-14
SI4056340T1 (sl) 2024-03-29

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