EP3647006A1 - Holzblock- oder -stummpfspaltvorrichtung - Google Patents

Holzblock- oder -stummpfspaltvorrichtung Download PDF

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Publication number
EP3647006A1
EP3647006A1 EP19205683.6A EP19205683A EP3647006A1 EP 3647006 A1 EP3647006 A1 EP 3647006A1 EP 19205683 A EP19205683 A EP 19205683A EP 3647006 A1 EP3647006 A1 EP 3647006A1
Authority
EP
European Patent Office
Prior art keywords
splitting
blade
log
actuation unit
cylinder
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
EP19205683.6A
Other languages
English (en)
French (fr)
Other versions
EP3647006B1 (de
Inventor
Ms. Roberta RICCA
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.)
Ricca Andrea and C SNC
Original Assignee
Ricca Andrea and C SNC
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 Ricca Andrea and C SNC filed Critical Ricca Andrea and C SNC
Priority to SI201930055T priority Critical patent/SI3647006T1/sl
Publication of EP3647006A1 publication Critical patent/EP3647006A1/de
Application granted granted Critical
Publication of EP3647006B1 publication Critical patent/EP3647006B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 present invention regards wood log or stub splitting apparatuses of the type comprising a support structure, a hydraulic jack carried by the support structure and bearing a splitting blade displaceable between a receded position and an advanced position relatively to a surface or plate for the support or abutment of a wood log to be split, a unit for controlling the linear actuator, and means for controlling the actuation unit for displacing the splitting blade from the receded position to the advanced position and vice versa.
  • a particular solution of this type consists in using a pair of tilting arms or handlebars which serve two purposes: locking - between them - the wood log on the support surface in a centred position with respect to the splitting blade, and granting consent to the activation of the actuation unit to carry out the splitting operation only through a manoeuvre simultaneously continuously exerted on both arms, and thus using both hands.
  • the safety system proposed in the aforementioned prior art documents basically creates excessive hindrance for the operator who, instead of being forced to passively observe the entire splitting step, could more usefully use this period of time to hold the pieces of wood to prevent them from falling uncontrollably during the splitting step.
  • the object of the present invention is to overcome the aforementioned drawback, and more in particular to provide a wood splitting apparatus of the type defined above guaranteeing the maximum degree of safety for the operator in particular in the critical step of approaching the blade to the log, as explained previously.
  • a log splitting apparatus of the type defined in the pre-characterising part of claim 1 is mainly characterised in that the cylinder of the hydraulic jack is articulated inferiorly to a rotatable bracket provided on top of the support structure.
  • the hydraulic jack is moveable - by means of the rotatable bracket - between a first position, in which the actuation unit is susceptible to be made operative through the control means, and a second position, corresponding to the application - on the blade - of a resistance to the displacement thereof towards the advanced position, for example due to a hand of a distracted operator, in which the actuation unit is made temporarily inoperative, so as to stop the displacement of the blade towards the advanced position.
  • the operator can position and align the piece to be split on the support surface of the apparatus under safe conditions given that should the blade encounter even a slight resistance to the displacement thereof towards the advanced position, the movement thereof automatically stops immediately.
  • the stopping of the blade occurs when the latter intercepts the surface of the wood log to be split.
  • the displacement of the rotatable bracket from the first to the second angular position is countered by at least one spring whose restoring force can be advantageously adjusted as a function of the desired degree of the minimum counteracting force of the blade to stop the apparatus.
  • the cylinder comprises a pin whose ends protrude from the lateral surface thereof.
  • the pin is carried by the bracket by means of a releasable retaining arm.
  • the invention comprises a support structure generally indicated with 1, consisting of a framework 2, a vertical upright 3 and a horizontal base 4 for supporting the wood log P which is to be split when required.
  • the blade 6 with the slide 5 is carried by the stem 9 of a hydraulic jack 7 comprising a cylinder 8 arranged substantially vertically facing the upright 3 and articulated beneath said upright 3, as clarified hereinafter.
  • the upright 3 further bears an electrical-hydraulic actuation unit, not shown in that known to a man skilled in the art, of the hydraulic jack 7 with the related control means 10, 11, 25 to displace the blade 6 from a raised or receded position to an advanced or lowered position and vice versa.
  • the control means 10, 11, 25 include, so as to comply with the regulatory safety specifications set forth for such wood log splitting apparatuses, safety means for example consisting of a pair of levers 10 or buttons 11 that require the action of both hands of the operator to carry out the operation for splitting the wood log P.
  • the hydraulic jack 7 is not fixed. As a matter of fact, it can oscillate between a first angular position and a second angular position with respect to the upright 3 for a stroke of pre-established degree.
  • the cylinder 8 of the hydraulic jack 7 comprises - at the lower part - a horizontal transversal pin 12 whose ends traverse respective lateral slots 13 of a pair of rotatable brackets 14 each having an end opposite to the corresponding slot 13 hinged to the top part of the upright 3 by means of the pin 15.
  • brackets 14 are joined, substantially in the respective central portions, by a shaft 16 bearing a pair of plates 17 fixed to each one of which is a vertical stem 18 bearing - at the top part - a washer 19. Compression helical springs 20 are interposed between the washers 19 and the pair of plates 17.
  • Figure 4 shows a pair of releasable retaining arms 21 each comprising a hook-like portion provided for engaging a respective end of the pin 12 of the cylinder 8, and being joined in the opposite portions by a handle for disengaging such arms from the pin 12 countering the force of a spring 26.
  • a contact switch As better observable in figure 4 , indicated with 22 is a contact switch, whose body 22 is fixed to one of the brackets 14 and designed to make the actuation unit of the log splitting apparatus inoperative, stopping the displacement of the blade 6 towards the advanced position, when such contact switch 22 is moved away from an abutment 23 integrally joined to the upright 3.
  • Figure 5 shows a covering strip 24 bearing a button 25 designed to return the blade to the initial raised position after the splitting step.
  • the wood log splitting apparatus according to the invention operates as follows.
  • the operator commands the start of the splitting cycle, normally by actuating one of the buttons 11 so as to arrange both hands for positioning and centring the piece to be split more comfortably.
  • the blade 6 descends until it rests on the wood log P to be split, or until it encounters a resistance against the lowering thereof, for example due to an inadvertent contact of a finger or another part of the body of the operator with such blade 6.
  • a resistance whose degree can be adjusted by means of springs 20, applied to the blade 6 causes the oscillation of the cylinder 8, or of the hydraulic jack 7, thanks to the rotation of the brackets 14 which will also move the contact switch 22 away from the relative counteracting means 23 thus stopping the actuation unit of the apparatus.
  • both buttons 11 have to be actuated in order to resume the displacement of the blade 6 downwards so as to split the piece P resting on the platform 4. This requires the action of both hands of the operator who cannot hold the piece P to be split in this step. However, the stability of the piece P on the support platform 4 is guaranteed in this step by the counteraction of the blade 6 from above.
  • pressing the button 25 will allow to return the blade 6 to the initial raised position.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Electrophonic Musical Instruments (AREA)
EP19205683.6A 2018-11-05 2019-10-28 Holzblock- oder -stumpfspaltvorrichtung Active EP3647006B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201930055T SI3647006T1 (sl) 2018-11-05 2019-10-28 Naprava za cepljenje lesenih debel in panjev

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102018000010050A IT201800010050A1 (it) 2018-11-05 2018-11-05 Macchina spaccalegna o spaccatronchi

Publications (2)

Publication Number Publication Date
EP3647006A1 true EP3647006A1 (de) 2020-05-06
EP3647006B1 EP3647006B1 (de) 2021-04-21

Family

ID=65496830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19205683.6A Active EP3647006B1 (de) 2018-11-05 2019-10-28 Holzblock- oder -stumpfspaltvorrichtung

Country Status (3)

Country Link
EP (1) EP3647006B1 (de)
IT (1) IT201800010050A1 (de)
SI (1) SI3647006T1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111975901A (zh) * 2020-08-31 2020-11-24 阜南县艺达工艺品有限公司 一种竹木工艺品加工用的快速破竹机构及其破竹方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438997B1 (de) 1990-01-24 1992-09-02 POSCH LANDMASCHINENBAU Gesellschaft m.b.H. Bedienungsvorrichtung eines Bearbeitungsgerätes
EP0519150B1 (de) 1991-06-21 1995-05-31 Andrea Ricca Bedienungsvorrichtung für hydraulischem Holzspalter
DE19640687A1 (de) 1995-10-11 1997-04-17 Hch Weikart Ag Holzspaltmaschine
EP0891845A2 (de) 1997-07-11 1999-01-20 Ricca Andrea & C. Snc Vorrichtung zum Spalten von Holz
WO2012167194A2 (en) * 2011-06-01 2012-12-06 Blount, Inc. Log splitter with two handed operation features
US20180126582A1 (en) * 2016-11-04 2018-05-10 Jiashan Superpower Tools Co., Ltd. Foldable log splitter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438997B1 (de) 1990-01-24 1992-09-02 POSCH LANDMASCHINENBAU Gesellschaft m.b.H. Bedienungsvorrichtung eines Bearbeitungsgerätes
EP0519150B1 (de) 1991-06-21 1995-05-31 Andrea Ricca Bedienungsvorrichtung für hydraulischem Holzspalter
DE19640687A1 (de) 1995-10-11 1997-04-17 Hch Weikart Ag Holzspaltmaschine
EP0891845A2 (de) 1997-07-11 1999-01-20 Ricca Andrea & C. Snc Vorrichtung zum Spalten von Holz
WO2012167194A2 (en) * 2011-06-01 2012-12-06 Blount, Inc. Log splitter with two handed operation features
US20180126582A1 (en) * 2016-11-04 2018-05-10 Jiashan Superpower Tools Co., Ltd. Foldable log splitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111975901A (zh) * 2020-08-31 2020-11-24 阜南县艺达工艺品有限公司 一种竹木工艺品加工用的快速破竹机构及其破竹方法

Also Published As

Publication number Publication date
IT201800010050A1 (it) 2020-05-05
EP3647006B1 (de) 2021-04-21
SI3647006T1 (sl) 2021-08-31

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