EP3141361A1 - Vorrichtung zur gleichausrichtung von holzscheiten für vertikalen holzspalter, vertikaler holzspalter für holzscheite, der mit dieser vorrichtung ausgestattet ist, und verfahren zur gleichausrichtung von holzscheiten mithilfe dieser vorrichtung - Google Patents

Vorrichtung zur gleichausrichtung von holzscheiten für vertikalen holzspalter, vertikaler holzspalter für holzscheite, der mit dieser vorrichtung ausgestattet ist, und verfahren zur gleichausrichtung von holzscheiten mithilfe dieser vorrichtung Download PDF

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Publication number
EP3141361A1
EP3141361A1 EP16187260.1A EP16187260A EP3141361A1 EP 3141361 A1 EP3141361 A1 EP 3141361A1 EP 16187260 A EP16187260 A EP 16187260A EP 3141361 A1 EP3141361 A1 EP 3141361A1
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EP
European Patent Office
Prior art keywords
slot
pivoting arm
coupling member
coupling
splitter
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
EP16187260.1A
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English (en)
French (fr)
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EP3141361B1 (de
Inventor
Robert Heissler
Ludovic LIEBY
Maxime Vervaux
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Amr Par Actions Simplifiees (sas) Ste
Original Assignee
Amr Par Actions Simplifiees (sas) Ste
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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

Definitions

  • the present invention relates to a log recovery device for vertical log splitter of wood logs, said vertical log splitter having a frame provided with a vertical beam and a base for receiving the lower end of a log in a vertical position of slot, said vertical log splitter further comprising a slot member coupled to an actuator controlled by a control block integral with said frame, said slot member being mounted on a slide carriage guided along said vertical beam to be movable in vertical translation between a low position and a high position, said rectifying device comprising a pivoting arm mounted on a horizontal support by hinge means and arranged to be tilted from a horizontal loading position in which the pivoting arm supports at least the end top of a log when it is arranged substantially horizontally on the base of the vertical dancer, in a tilted position in which the pivoting arm tilts said log to bring it closer to the vertical slot position, and coupling means arranged to couple the pivoting arm to said slot member, when said recovery device is associated with said vertical splitter, said pivoting arm being arranged to switch between said horizontal loading
  • the present invention also relates to a vertical log splitter and a log recovery method.
  • Vertical wood log splitters are slot machines that are well known. They generally comprise a base which receives a log in a vertical position to be split and a vertically arranged wedge controlled by a hydraulic cylinder or the like which makes it possible to split the log in half lengthwise. It is therefore essential that the log is, before any slot operation, arranged in a vertical position on the base. In general, the vertical positioning of the log on the base is done manually. In most cases, the operator must manually straighten the log from a horizontal position to a vertical position and make sure to center the lower end of the log on the base. This manual operation has the disadvantage of being tiring for the operator, source of back disorders, and not being secured.
  • a log recovery device for vertical log splitter commonly called lifter. It comprises a pivoting arm articulated on the base of the splitter being able to be tilted from a horizontal loading position in which the log is horizontal to a tilted position in which the pivoting arm tilts the log to bring it closer to the vertical position crack.
  • the pivoting arm is coupled to the slot member of the splitter by a first hook disposed on the slot member and receiving the link of a sling to which the pivoting arm is attached. It is then possible to tilt the pivot arm from the horizontal loading position to the tilted position by manually hooking the link of the sling to the first hook of the slit member and moving the slit member from the down position to the high position.
  • a second hook may also be provided on the frame of the splitter to hold the pivot arm in the tilted position during the slot operation while remaining uncoupled from the slot member. To do this, it is sufficient for the operator to manually hook the link of the sling to the second hook of the frame.
  • these manual coupling and decoupling operations of the pivoting arm of the slot member may present a danger for the operator.
  • the publication AT 002 246 U1 proposes a log lifter provided with locking means arranged to automatically maintain the lift arm in the tilted position.
  • the lifting arm remains permanently coupled to the slitter carriage carrying the slot member by a non-removable chain.
  • the slot member can still be operated without the lift arm tilts to the horizontal position through the locking means and the length of the chain.
  • the chain remains attached to the carriage and is moved simultaneously with it during the cutting operation, when it is moved by the force of the jack to allow the slot member to split the log of wood.
  • This chain forms a movable flexible element, located in the immediate vicinity of a cutting member and whose movement is not controlled or mastered. As a result, it poses a danger to people, can interfere with the cutting operation and / or cause jamming of a piece of wood after cutting.
  • the present invention aims to overcome these disadvantages by providing a rectifying device to improve the ergonomics of the workstation and the safety of the operator, and reduce manual operations, without involving any additional energy.
  • the invention relates to a rectifying device of the kind indicated in the preamble, characterized in that said coupling means and said locking means of said rectifying device are arranged to cooperate automatically with each other in order to automatically decouple said arm pivoting the slot member when said slot member is in the up position and automatically maintain the pivot arm in the tilted position, when said rectifier is mounted on said splitter.
  • said coupling means comprises a first coupling member arranged to be disposed on said sliding carriage when said rectification device is mounted on said splitter, and a second coupling member complementary to said first coupling member and fixed to said pivoting arm.
  • the first coupling member and the second coupling member being constituted by two distinct pieces and being arranged to be coupled temporarily between them.
  • the first coupling member comprises a projecting portion and the second coupling member comprises a fitting zone complementary to the projecting portion of said first coupling member to form a temporary mechanical engagement.
  • the second coupling member may be attached to said pivoting arm by means of a connecting element.
  • the locking means are arranged to automatically decouple the first coupling member of the second coupling member of said coupling means when said slot member is in the up position.
  • the locking means are arranged to be fixed to said frame of said splitter and comprise a hook arranged to be pivotally mounted on said frame between a locked position and an unlocked position, said hook being coupled to return means in the locked position and secured to an unlocking lever, said second coupling member connected to said pivoting arm further comprises a loop arranged to be hooked by said hook in the locked position and thereby uncouple said pivoting arm of said slot member.
  • the invention also relates to a vertical log splitter of the type indicated in the preamble, characterized in that said coupling means and said locking means of said straightening device are arranged to cooperate automatically with each other in order to automatically decouple said pivoting arm from the slit member when said slot member is in the up position and automatically maintain the pivot arm in the tilted position, when said rectifier is mounted on said slitter.
  • said coupling means comprises a first coupling member arranged on said sliding carriage of said splitter, and a second coupling member complementary to said first coupling member and fixed to said pivoting arm, the first coupling member and the second coupling member being constituted of two separate parts and being arranged to be coupled temporarily between them.
  • the first coupling member comprises a projecting portion and the second coupling member comprises a fitting zone complementary to the projecting portion of said first coupling member to form a temporary mechanical engagement.
  • the second coupling member may be attached to said pivoting arm by means of a connecting element.
  • the locking means are fixed to said frame of said splitter and comprise a hook pivotally mounted on said frame between a locked position and an unlocked position, said hook being coupled to return means in the locked position and secured to a lever release, said second coupling member connected to said pivoting arm further comprises a loop arranged to be hooked by said hook in the locked position and thus uncoupled said pivoting arm of said slot member.
  • the invention also relates to a method of rectifying the kind of wood indicated in the preamble, characterized in that, when said slot member is in the up position, the pivoting arm of the slot member is automatically cut out and the automatically maintains said pivoting arm in the tilted position, by means of said coupling means which cooperate with locking means of said recovery device mounted on said splitter, then the log is split by moving the slot member from the up position to the low position.
  • the coupling means of the rectifying device comprise a first coupling member and a second coupling member respectively integral with the slot member and the pivoting arm, the first coupling member and the second coupling member being coupled together. between them temporarily so that the displacement of the slot member between its low position and its high position automatically causes the tilting arm to swing between its horizontal position and its tilted position.
  • the second coupling member When the slot member is in the up position, the second coupling member is automatically coupled to the locking means and the first coupling member and the second coupling member are decoupled from each other automatically thereby releasing said slot member of the recovery device .
  • the locking means is unlocked by operating an unlocking lever to again couple said pivoting arm of said slot member to automatically tilt the pivoting arm downward to the horizontal loading position by moving the latch arm. slot member down in the down position.
  • the locking means of the second coupling member are cut off by operating the unlocking lever and said second coupling member is temporarily coupled to said first coupling member.
  • the rectifying device 1 of logs B is intended to equip a vertical log splitter 2 of logs B.
  • a splitter 2 is a machine for splitting logs B at least in two in the length direction, in order to obtain sections of smaller section.
  • the splitter 2 comprises in a known manner a frame 20 formed of a base 201 and a vertical beam 202.
  • the base 201 is provided to be disposed on the floor S substantially horizontally and to receive the log B in the vertical slot position. More particularly, in a vertical slit position (not shown), the lower end B1 of the log B rests on the base 201.
  • the vertical beam 202 extends from the base 201 and is substantially perpendicular to the base 201 to allow the vertical displacement of a slit member 21, which is most often a splitting wedge.
  • the vertical beam 202 is provided along its lateral edges with a guide rail 203 along which slides a sliding carriage 22 to which the slot member 21 is fixed.
  • the slot member 21 is movable in rectilinear translation in the vertical direction between a low position PB ( Fig. 1 and 6 ) and a high position PH ( Fig. 2 , 3 , 5 , 7 ).
  • the slot member 21 is coupled to an actuator 23 of the hydraulic cylinder type or the like, which is arranged in the extension of the slot member 21 and carried by the frame 20.
  • the displacement of the slot member 21 is controlled by a command block 24 which is disposed at the upper end of the vertical beam 202 and has two control handles 241 and controls the descent of the slit member 21 only when both control handles are operated to ensure the safety of the operator.
  • One of the control handles 241 further comprises a vertical holding claw 242 of the log B which is provided to grip the log B and maintain it vertically during the slot.
  • the splitter 2 is equipped with a rectifying device 1 according to the invention which will be described in the following description.
  • the straightening device 1 can be provided and integrated with the splitter 2 at the time of manufacture or can be attached to a splitter 2 later to improve its ergonomics.
  • the straightening device 1 does not need to modify the existing splitters 2 and can be marketed separately from the splitter 2.
  • the rectifying device 1 of logs B has the objective of automatically straightening a timber log B of a horizontal position, in which its longitudinal axis is parallel to the base 201 ( Fig. 6 ), to a tilted position in which its longitudinal axis is closer to the vertical than to the horizontal ( Fig. 7 ).
  • the operator can then easily manually straighten the log B in the vertical position of the slot, without bending down.
  • the manual operations are reduced for greater safety and ergonomics for the operator.
  • the straightening device 1 comprises a pivoting arm 10 mounted on the base 201 of the splitter 2, acting as a horizontal support, as illustrated by FIGS. figures 1 and 2 by pivoting means 11.
  • the pivoting arm 10 consists of a section-shaped bracket and comprises a first section 101 intended to cooperate with the articulation means 11 and a second section 102 forming a right angle with the first section 101 and intended to receive the upper end B2 of a log B ( Fig. 6 ).
  • the pivoting arm 10 also comprises a stop 104 provided with teeth and which is arranged at the right of the bend formed between the first and second sections 101, 102, to hold the log B laterally when it tilts.
  • This example of an arm Swivel is not limiting because it could also consist of a plate or a grid to accommodate the log B along its length.
  • the articulation means 11 comprise a fixed stirrup 111 and a horizontal pivot axis 112 connected to the end of the first section 101 of the pivoting arm 10.
  • the articulation means may, according to a variant of the invention not shown, be arranged on a horizontal support independent of the splitter.
  • the pivoting arm 10 is coupled indirectly to the actuator 23 of the splitter 2 by coupling means 13 coupled to the slot member 21. As a result, the pivoting arm 10 is actuated indirectly by the actuator 23 of the splitter 2, and thus requires no additional energy.
  • the coupling means 13 make it possible to couple the pivoting arm 10 to the slot member 21 of the splitter 2.
  • These coupling means 13 comprise a first coupling member 14 cooperating with a second coupling member 15.
  • the first coupling member 14 is fixed on the sliding carriage 22 of the splitter 2, and the second coupling member 15 is on the one hand complementary to the first coupling member 14 and on the other hand fixed to the pivoting arm 10.
  • first coupling member 14 and the second coupling member 15 are two separate parts.
  • the first coupling member 14 comprises a U-shaped piece housed in the rail 203, fixed on one side to the sliding carriage 22 by screws or the like, and having on the other side a projecting portion 140, visible at the figure 4 , which is arranged in the vertical direction and in the direction of the control block 24.
  • the second coupling member 15 comprises a plate 150 provided with a link 151 for receiving a connecting element 152, such as a sling or a chain attached to the upper end of the pivoting arm 10 by a link 103.
  • the plate 150 also comprises a nesting zone 153 disposed in the vertical direction and in the direction of the base 201.
  • the nesting zone 153 is complementary to the protruding portion 140 of the first coupling member 14 to be coupled together by simple mechanical interlocking and temporarily. It results when the first coupling member 14 is engaged in the second coupling member 15 or vice versa, the displacement of the slot member 21 from its low position PB to its high position PH automatically causes the pivoting arm 10 to tilt from its position horizontal in its tilted position, and vice versa. More particularly, the pivoting arm 10 can thus switch between a horizontal loading position when the slot member 21 is in the low position PB, and a tilted position when the slot member 21 is in the high position PH and vice versa.
  • the loop 154 connected to the pivoting arm 10 is hooked automatically by the hook 160 secured to the frame 20.
  • the hook 160 in the locked position exerts a traction force on the second coupling member 15 which allows the uncoupling of the first member of coupling 14 and maintain the pivot arm 10 in the tilted position.
  • manual manipulation of the coupling means 13 and the locking means 16 by the operator is avoided, which is not the case in the known prior art. This results in improved ergonomics and safety for the operator.
  • the first coupling member 14 is then released automatically from the second coupling member 15, as shown in FIG. figure 4 the first coupling member 14 and the second coupling member 15 are no longer nested.
  • Actuation of the unlocking lever 161 by the operator makes it possible to incline the hook 160 in the unlocked position to free it from the loop 154, as illustrated by FIG. figure 5 .
  • the decoupling of the loop 154 of the hook 160 is only possible when the slot member 21 is in the high position PH ( figure 5 ) to ensure the safety of the operator.
  • the first coupling member 14 and the second coupling member 15 are again temporarily coupled so as to tilt the pivoting arm 10 into a horizontal loading position ( figures 1 and 6 ) and to reiterate the tilting and slot operations of a new log B.
  • the coupling of the pivoting arm 10 to the slot member 21 is also secure since no direct manipulation of the coupling means 13 and the means of locking 16 takes place, which is not the case in the prior art.
  • the unlocking lever control system 161 is very compact and can limit the efforts of the operator.
  • the invention achieves the goals set, namely to facilitate the handling of logs before their slot with a vertical log splitter, improve the safety of the operator and the ergonomics of his workstation, decide on the use or not of the recovery device of the log without the operator moves from his workstation, save time, and limit the efforts and manual operations of the operator.
  • the present invention also relates to a method of rectifying logs B to facilitate the handling of logs B to be split by means of a vertical splitter 2.
  • the splitter 2 is equipped with the righting device 1 which has just been described.
  • the operator has a log B substantially horizontally on the base 201.
  • the slot member 21 is in the low position PB, and the operator deposits a beech B in horizontal position placing its lower end B1 bearing on the abutment 204 of the base 201 and the upper end B2 of the log B on the second section 102 of the pivoting arm 10, against the notched stop 104 of the pivoting arm 10.
  • the pivoting arm 10 being coupled to the slot member 21 by the coupling means 13, the latter automatically tilts the log B from a horizontal loading position to a tilted position in which the axis of the log B is close to the vertical.
  • the first coupling member 14 and the second coupling member 15 are nested.
  • the operator then manually switches the log B from this position tilted to the vertical slot position on the base 201.
  • the coupling means 13 of the rectifying device 1 which comprise the first coupling member 14 and the second Coupling member 15 is automatically decoupled thanks to the locking means 16.
  • the first coupling member 14 and the second coupling member 15 are no longer nested. between them and that the slot member 21 is automatically decoupled from the pivoting arm 10.
  • the operator can then proceed to the slot of the log B, by operating the control handles 241 to move the slot member 21 of the position high PH to the low position PB. This avoids any manual manipulation of the coupling means 13 and the locking means 16 to decouple the pivoting arm 10 of the slit member 21.
  • the safety and ergonomics of the straightening device 1 are then considerably improved.
  • the operator controls the actuator 23 in the other direction to move the slit member 21 upwardly into the high position PH.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Load-Engaging Elements For Cranes (AREA)
EP16187260.1A 2015-09-14 2016-09-05 Hebevorrichtung für vertikalen holzspalter, vertikaler holzspalter mit dieser vorrichtung, und verfahren zum heben von holzscheiten mithilfe dieser vorrichtung Active EP3141361B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1558546A FR3040905B1 (fr) 2015-09-14 2015-09-14 Dispositif de redressement de buches pour fendeuse verticale de buches, fendeuse verticale de buches equipee dudit dispositif et procede de redressement de buches utilisant ledit dispositif

Publications (2)

Publication Number Publication Date
EP3141361A1 true EP3141361A1 (de) 2017-03-15
EP3141361B1 EP3141361B1 (de) 2018-12-26

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EP16187260.1A Active EP3141361B1 (de) 2015-09-14 2016-09-05 Hebevorrichtung für vertikalen holzspalter, vertikaler holzspalter mit dieser vorrichtung, und verfahren zum heben von holzscheiten mithilfe dieser vorrichtung

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EP (1) EP3141361B1 (de)
FR (1) FR3040905B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190001521A1 (en) * 2017-06-29 2019-01-03 Scheppach Fabrikation Von Holzbearbeitungsmaschinen Gmbh Wood splitting device and wood splitting method
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT2246U1 (de) 1997-02-19 1998-07-27 Kerbl Ges M B H Maschinenbau Hebevorrichtung zu einer hydraulischen holzspaltmaschine
DE20013914U1 (de) * 2000-08-08 2000-12-07 Grotz Wilhelm Holzspaltgerät mit Vorrichtung zum Ankippen von Spaltmaterial
AT513171A1 (de) * 2012-07-17 2014-02-15 Riepl Hebe- und Transporteinrichtung für hydraulische Holzspalter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT2246U1 (de) 1997-02-19 1998-07-27 Kerbl Ges M B H Maschinenbau Hebevorrichtung zu einer hydraulischen holzspaltmaschine
DE20013914U1 (de) * 2000-08-08 2000-12-07 Grotz Wilhelm Holzspaltgerät mit Vorrichtung zum Ankippen von Spaltmaterial
AT513171A1 (de) * 2012-07-17 2014-02-15 Riepl Hebe- und Transporteinrichtung für hydraulische Holzspalter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190001521A1 (en) * 2017-06-29 2019-01-03 Scheppach Fabrikation Von Holzbearbeitungsmaschinen Gmbh Wood splitting device and wood splitting method
CN109203161A (zh) * 2017-06-29 2019-01-15 斯巴赫木材加工机械工厂股份有限公司 劈木装置和劈木方法
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
FR3040905B1 (fr) 2019-08-30
EP3141361B1 (de) 2018-12-26
FR3040905A1 (fr) 2017-03-17

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