WO2014097333A1 - Machine pour fendage de bois - Google Patents

Machine pour fendage de bois Download PDF

Info

Publication number
WO2014097333A1
WO2014097333A1 PCT/IT2012/000396 IT2012000396W WO2014097333A1 WO 2014097333 A1 WO2014097333 A1 WO 2014097333A1 IT 2012000396 W IT2012000396 W IT 2012000396W WO 2014097333 A1 WO2014097333 A1 WO 2014097333A1
Authority
WO
WIPO (PCT)
Prior art keywords
machine
work
abutment
wedge
splitting wood
Prior art date
Application number
PCT/IT2012/000396
Other languages
English (en)
Inventor
Eros Gozzi
Original Assignee
Krea S.R.L.
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 Krea S.R.L. filed Critical Krea S.R.L.
Priority to EP12824868.9A priority Critical patent/EP2934835A1/fr
Priority to PCT/IT2012/000396 priority patent/WO2014097333A1/fr
Publication of WO2014097333A1 publication Critical patent/WO2014097333A1/fr

Links

Classifications

    • 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
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/02—Vices with sliding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/18—Arrangements for positively actuating jaws motor driven, e.g. with fluid drive, with or without provision for manual actuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/22—Arrangements for turning or tilting vices

Definitions

  • the present invention refers to a machine for splitting wood.
  • the invention refers in particular to a machine for splitting wood for domestic use.
  • Portable devices of contained dimensions for splitting pieces of wood into fragments of smaller dimensions are currently available on the market.
  • Such devices comprise a work bench, arranged to support a piece of wood, on which a wedge operates.
  • This wedge is operated slidably on the work bench by a hydraulic cylinder.
  • the hydraulic cylinder is connected to a circuit, powered by a pump, along which an operator liquid flows consisting of mineral oil.
  • Devices of the known type therefore need a dedicated pump and a closed circuit connected to the pump and supplied with mineral oil.
  • the overall cost and dimensions of devices of the known type are therefore affected by the necessary presence of the dedicated pump.
  • the mineral oil necessary for operation must be periodically replaced due to the inevitable leaks that arise along the supply circuit, with consequent risks of environmental contamination.
  • the object of the present invention is to offer a machine for splitting wood that allows the disadvantages of the devices currently available to be overcome.
  • An advantage of the machine for splitting wood according to the present invention is that it does not require the presence of a pump dedicated exclusively to its operation.
  • Another advantage of the machine for splitting wood according to the present invention is that it does not require the use of mineral oil for its operation.
  • Figure 1 shows a first axonometric view of the machine according to the present invention
  • Figure 2 shows a second axonometric view of the machine according to the present invention, in a second operative configuration
  • Figure 3 shows the machine of Figure 1 in a further operative configuration
  • Figure 4 shows a version of the machine according to the present invention, wherein a work bench (2) is oriented vertically.
  • the machine for splitting wood comprises a support frame (10), provided with four support feet. At the ends of two support feet two wheels (11) are located rotatable about a common axis of rotation.
  • a work bench (2) is associated with the support frame (10). Such work bench is arranged to support a piece of wood to be split.
  • the work bench (2) extends longitudinally along a direction of work (X) and is provided with lateral sides (21), located on opposite sides of the direction of work (X), which project above the work bench (2) itself to laterally contain any movements of the piece of wood to be split.
  • the machine for splitting wood further comprises a first abutment (3), slidably mobile along a direction of work (X) between a first position and a second position with a work stroke and a return stroke.
  • the first abutment (3) is associated with the stem (51) of a hydraulic cylinder (5), which is in turn associated with the support frame (10).
  • the hydraulic cylinder (5) is arranged parallel to the direction of work (X) and, through the extension and shortening of its stem (51), is arranged to move the first abutment (3) along the direction of work (X).
  • a wedge (4) is integral with the work bench (2) and is arranged along the direction of work (X).
  • the wedge (4) has an operative edge (41) facing towards the first abutment (3).
  • the operation of the machine for splitting wood envisages placing the piece of wood to be split onto the work bench (2), in an intermediate position between the first abutment (3) and the wedge (4). Subsequently the first abutment (3) is operated slidably along the direction of work (X) in the work stroke from the first position, in which it is at a longer distance from the wedge (4), towards the second position, in which it is at a shorter distance from the wedge (4).
  • the first abutment (3) presses the piece of wood into contact with the wedge (4) and in particular with the operative edge (41) that penetrates into the piece of wood causing it to fracture. Subsequently the first abutment performs the return stroke during which it moves from the second position towards the first position.
  • the wedge (4) instead of the first abutment (3), to be associated with the stem (51) of the hydraulic cylinder (5). In that case it is the wedge (4) that moves along the direction of work (X) while the first abutment (3) stays still.
  • the machine for splitting wood further comprises a supply circuit, connected to the hydraulic cylinder (5) and arranged to be connected to a pump (7).
  • the supply circuit comprises a first conduit (101), connected to the chamber of the bottom of the hydraulic cylinder (5), and a second conduit (102), connected to the chamber of the stem of the hydraulic cylinder (5).
  • the supply of liquid under pressure to the first conduit (101) causes the extension of the stem (51) and, consequently, the movement of the first abutment (3) from the first towards the second position.
  • the supply of a liquid under pressure to the second conduit (102) causes the shortening of the stem (51) and the consequent stroke of the first abutment (3) from the second towards the first position.
  • the hydraulic cylinder (5) is operated by an operator liquid, circulating along the supply circuit (101 , 102).
  • the operator liquid consists of oil.
  • the oil can be advantageously replaced by water.
  • the operator fluid is water.
  • the use of water instead of oil as an operator liquid offers important advantages.
  • the power required of the pump to produce sufficient pressure for the effective operation of the machine that is, to produce sufficient pressure to generate a sufficient force to split pieces of wood, is lower with respect to the power required of the pump if the operator liquid is oil.
  • water subject to pressure has a much lower reduction in volume with respect to oil.
  • the machine according to the present invention operates perfectly with a common pump for domestic use, powered with a voltage of 220V.
  • the machine for splitting wood can be combined, for example with a high pressure water jet machine again for domestic use.
  • the machine may be equipped with its own pump (7) which can be powered with a domestic voltage of 220V offering the same performance as an oil-operated machine powered at 380V.
  • the wedge (4) is interchangeable with a second abutment (6).
  • the wedge (4) and the abutment (6) can be associated with the work bench (2) by means of two lateral guides (22) that project horizontally at least partially above the work bench (2).
  • the wedge (4) and the abutment (6) are provided with a support base (42, 62) that is partially inserted below the lateral guides (22) so that a prismatic coupling is defined.
  • the lateral guides (22) prevent the wedge (4) and the second abutment (6) from being able to turn about an axis perpendicular to the direction of work (X) and being able to move in a perpendicular direction to the direction of work (X).
  • a removable stop is provided to prevent any movements of the wedge (4) and of the second abutment (6) also in a parallel direction to the direction of work (X).
  • the wedge (4) and the second abutment (6) can be interchanged with one another by simply removing the removable stop and extracting one or the other from the lateral guides (22) with a sliding movement parallel to the direction of work (X).
  • By replacing the wedge (4) with the second abutment (6) it is possible to use the machine according to the present invention as a locking vice.
  • a piece of wood can be locked firmly between the abutments (3, 6) to be cut with another tool, for example a chain saw.
  • the work bench (2) is inclinable about a horizontal axis of adjustment (Y).
  • the axis of adjustment (Y) is perpendicular to the direction of work (X).
  • Removable locking means are arranged to prevent the rotation of the work bench (2) about the axis of adjustment (Y).
  • the work bench (2) can be oriented in a desired position about the axis of adjustment (Y), after removing the locking means. Once the desired position has been reached, the work bench (2) can be locked by restoring the locking means.
  • the inclination of the work bench (2) is useful to facilitate the loading and unloading of the pieces of wood.
  • the work bench (2) could be arranged vertically, as shown in Figure 4, so as to facilitate the loading of particularly heavy pieces of wood.
  • the machine further comprises a tank (8) for water, placed in communication with the cylinder (5).
  • the tank (8) is preferably located below the work bench (2), so as to contain the overall dimensions of the machine.
  • the tank (8) is connected to the cylinder (5) through a third conduit (103) of the supply circuit.
  • the third conduit (103) is connected to a hydraulic distributor (106) to which, at one of its ends, the first and the second conduits (101 , 102) are also connected.
  • the tank (8) is also connected to the supply pump (7) through a fourth conduit (104) of the supply circuit.
  • the pump (7), at the inlet, is connected to the distributor (106) through a fifth conduit (105).
  • the distributor (105) determines whether the pump (7), which takes the water from the tank (8) through the fourth conduit (104), sends the water under pressure to the first or the second conduit (101 , 102) so as to control the extension or shortening of the stem (51) of the cylinder (5).
  • the conduit (101 , 102) to which the water under pressure is not sent from the pump (7) acts as a return conduit to the tank (8).
  • a tray (9) is arranged in proximity to the wedge (4) on the opposite part with respect to the first abutment (3).
  • the tray (9) is substantially coplanar to the work bench (2) and is arranged downstream of the wedge (4) in the work stroke of the first abutment (3).
  • the tray (9) is connected removably to the work bench (2), so that it can be removed when not being used.
  • the tray (9) is provided with raised lateral sides (91), arranged to facilitate the lateral containment of the fragments of wood.
  • the tray (9) can be associated with the work bench (2) with an orientation aligned with the direction of work (X), as shown in Figure 1 , to collect and support the fragments of wood produced at the end of the work stroke of the first abutment (3) from splitting the piece of wood by the wedge (4).
  • the tray (9) can be associated with a work bench (2) oriented perpendicular to the direction of work (X) and located alongside the second abutment (6), as shown in Figure 2.
  • the tray (9) is useful to support a larger piece of wood gripped in a vice between the first and the second abutments (3, 6), so as to enable cutting by means of another tool, for example, a chain saw or a manual saw.
  • the machine for splitting wood according to the present invention offers important advantages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Abstract

L'invention concerne une machine pour le fendage du bois, comprenant : un établi (2), disposé pour soutenir une pièce de bois; une première butée (3), mobile d'une manière coulissante le long d'une direction de travail (X) entre une première position et une seconde position; une cale (4) solidaire de l'établi (2) et disposée le long de la direction de travail (X); un vérin hydraulique (5), dont la tige (51) est reliée à la première butée (3) pour déplacer la première butée (3) le long de la direction de travail (X); un circuit d'alimentation, relié au vérin hydraulique (5) et disposé pour être relié à une pompe; un fluide opérateur, circulant le long du circuit d'alimentation. Le fluide opérateur est de l'eau.
PCT/IT2012/000396 2012-12-21 2012-12-21 Machine pour fendage de bois WO2014097333A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12824868.9A EP2934835A1 (fr) 2012-12-21 2012-12-21 Machine pour fendage de bois
PCT/IT2012/000396 WO2014097333A1 (fr) 2012-12-21 2012-12-21 Machine pour fendage de bois

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2012/000396 WO2014097333A1 (fr) 2012-12-21 2012-12-21 Machine pour fendage de bois

Publications (1)

Publication Number Publication Date
WO2014097333A1 true WO2014097333A1 (fr) 2014-06-26

Family

ID=47739424

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2012/000396 WO2014097333A1 (fr) 2012-12-21 2012-12-21 Machine pour fendage de bois

Country Status (2)

Country Link
EP (1) EP2934835A1 (fr)
WO (1) WO2014097333A1 (fr)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285304A (en) * 1963-11-18 1966-11-15 Clyde H Fuller Log splitting and cutting machine
US4239070A (en) * 1979-04-20 1980-12-16 Burns Double Split, Inc. Log splitter
US4503894A (en) * 1983-08-24 1985-03-12 Kazmer Gratkowski Wood splitting device
SU1603081A1 (ru) * 1988-12-22 1990-10-30 Предприятие П/Я А-3423 Гидравлический привод
WO1994017311A1 (fr) * 1993-01-28 1994-08-04 Leif Gustafsson Dispositif d'entrainement
US5526855A (en) * 1995-08-08 1996-06-18 Graham; Donald M. Log splitter and detachable table
WO2004022293A1 (fr) * 2002-09-06 2004-03-18 Starfort Di Stubenruss, Paul Machine a fendre le bois
EP1591213A1 (fr) * 2004-04-30 2005-11-02 Woodline Srl Dispositif à fendre le bois avec plan de travail basculant
DE202007009309U1 (de) * 2006-11-21 2008-02-07 Lindner, Josef Vorrichtung als Obstpresse (Entsaften) zum Holzspalter
DE102006058938A1 (de) * 2006-12-12 2008-06-19 Wolfgang Suttner Holzspalter
US20100005980A1 (en) * 2008-07-09 2010-01-14 Rusty Stewart Ashby Device for Compressing Biomass to Create Fuel
EP2264322A2 (fr) * 2009-06-11 2010-12-22 Hytar Oy Système à fluide pressurisé et composant pour fluide pressurisé ainsi que fendeuse hydraulique

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285304A (en) * 1963-11-18 1966-11-15 Clyde H Fuller Log splitting and cutting machine
US4239070A (en) * 1979-04-20 1980-12-16 Burns Double Split, Inc. Log splitter
US4503894A (en) * 1983-08-24 1985-03-12 Kazmer Gratkowski Wood splitting device
SU1603081A1 (ru) * 1988-12-22 1990-10-30 Предприятие П/Я А-3423 Гидравлический привод
WO1994017311A1 (fr) * 1993-01-28 1994-08-04 Leif Gustafsson Dispositif d'entrainement
US5526855A (en) * 1995-08-08 1996-06-18 Graham; Donald M. Log splitter and detachable table
WO2004022293A1 (fr) * 2002-09-06 2004-03-18 Starfort Di Stubenruss, Paul Machine a fendre le bois
EP1591213A1 (fr) * 2004-04-30 2005-11-02 Woodline Srl Dispositif à fendre le bois avec plan de travail basculant
DE202007009309U1 (de) * 2006-11-21 2008-02-07 Lindner, Josef Vorrichtung als Obstpresse (Entsaften) zum Holzspalter
DE102006058938A1 (de) * 2006-12-12 2008-06-19 Wolfgang Suttner Holzspalter
US20100005980A1 (en) * 2008-07-09 2010-01-14 Rusty Stewart Ashby Device for Compressing Biomass to Create Fuel
EP2264322A2 (fr) * 2009-06-11 2010-12-22 Hytar Oy Système à fluide pressurisé et composant pour fluide pressurisé ainsi que fendeuse hydraulique

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