EP0260184A1 - Vorrichtung zum Spalten von Brennholz - Google Patents

Vorrichtung zum Spalten von Brennholz Download PDF

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Publication number
EP0260184A1
EP0260184A1 EP87401964A EP87401964A EP0260184A1 EP 0260184 A1 EP0260184 A1 EP 0260184A1 EP 87401964 A EP87401964 A EP 87401964A EP 87401964 A EP87401964 A EP 87401964A EP 0260184 A1 EP0260184 A1 EP 0260184A1
Authority
EP
European Patent Office
Prior art keywords
log
corner
splitting
wedge
splitting logs
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.)
Withdrawn
Application number
EP87401964A
Other languages
English (en)
French (fr)
Inventor
Pierre Soupplet
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0260184A1 publication Critical patent/EP0260184A1/de
Withdrawn legal-status Critical Current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
    • 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 relates to a device for splitting logs.
  • Numerous devices are already known for splitting logs.
  • these devices comprise a frame on which a corner is mounted, a log support disposed facing the corner and means allowing relative movement of the log support and the corner in order to bring these one towards the other and bring the corner into the log.
  • the various embodiments proposed so far generally relate to the shape of the wedge, various modifications of its profile having been proposed to allow good penetration of the wedge into the log while ensuring a separation of the log portions on the rear portion of the wedge .
  • the various embodiments proposed generally remain unsatisfactory.
  • the corner is very thin, it easily penetrates into the log but ensures a small spacing of the log parts on either side of the corner and therefore does not cause it to burst; if on the contrary the corner has a very wide rear part, the penetration of the corner into the log is very difficult and it is then necessary to provide relative displacement means of great power generally incompatible with the constraints of space or weight that a device for splitting logs must have in order to be economically exploitable.
  • An object of the present invention is to provide a device for splitting logs which has a good penetration capacity in the log and at the same time causes a satisfactory bursting of the log when the wedge penetrates therein.
  • a device for splitting logs comprising a frame on which is mounted a wedge having a splitting edge, a log support arranged opposite of the corner and of the means allowing relative movement of the log support and of the corner, this device comprising at least one spacer member pivotally mounted on an axis parallel to the splitting edge set back therefrom in a direction of movement of the log with respect to the corner, this spacer being held by a stop member out of alignment with the corner but adjacent to one side thereof.
  • the spacer member comes to bear on one end of the log in which it is anchored, then pivots during a subsequent penetration of the wedge into the log and then pushes the part of the log in which it is anchored.
  • the device for splitting the logs comprises two spacing members extending on either side of the corner.
  • each of the log parts separated by the corner is pushed aside laterally.
  • the two spacer members are carried by a common pivot axis
  • the stop member is carried by one of the spacer members and the spacer members have one end having a sharp angle.
  • the wedge is fixed to one end of a carrier bar mounted movably on the chassis and associated with the latter by positioning means.
  • the device for splitting logs is easily adjusted to the length of the logs to be split.
  • the support bar is connected to a counterweight.
  • the support bar is easily maneuvered for adjusting its position.
  • the chassis has a U-shape
  • the carrying bar is mounted at one end of a branch of the chassis transversely thereto and the log support is fixed to one end of a opposite branch of the chassis on a lifting means.
  • the chassis comprises a stabilizer bar extending perpendicular to the plane of the U on either side of a lower angle of the U and it comprises rollers mounted at the ends of the stabilizer bar.
  • the device comprises a chassis generally designated at 1 and here having the shape of a U comprising an upper branch 2, a vertical connecting beam 3 and a lower branch 4.
  • the branch 2 comprises a sleeve 5 in which is engaged a vertical support bar 6.
  • the vertical support bar 6 is for example formed by a hollow section of square section.
  • the support bar has openings 7 in one of which is engaged a pin 8 which also passes through an opening 9 in the side wall of the sleeve 5.
  • the support bar 6 has a corner 10 directed downwards.
  • the weight of the carrying bar 6 is offset by a counterweight 11 fixed to one end of a cable 12 which passes over idler pulleys 13 and is fixed to the lower part of the carrying bar 6.
  • the chassis At the connection angle between the vertical connecting beam 3 and the lower branch 4, the chassis comprises a sleeve 14 welded perpendicularly to the plane of the U-shaped chassis and in which is engaged a stabilizer bar 15 extending from one side and on the other side of the chassis. Castors 16 are mounted at the ends of the stabilizer bar 15.
  • a lifting means here a hydraulic cylinder 17 is mounted at one end of the lower branch 4 opposite the vertical connecting beam 3.
  • a log support 18 is fixed to the upper end of the rod of the hydraulic cylinder 17 and is brought back down by springs 19.
  • the device comprises spacers formed by rectangular plates 21 mounted to pivot freely on a common axis 22 extending parallel to the splitting edge 20 Under the action of gravity, the plates 21 would tend to align with the corner.
  • a stop member is provided, here a lug 23 fixed to one of the plates 21 and on which one of the lateral edges of the other plate 21 rests.
  • the spacers 21 extend on either side of the wedge 10 and have a sharp angle 24 facing the log support.
  • the hydraulic cylinder being in the retracted position, that is to say that the log support is in the low position, the position of the carrying bar is adjusted so that the splitting edge 20 of the corner 10 is at a distance corresponding approximately the length of the logs to be split.
  • a log is placed on the log support and the jack is lifted.
  • the splitting edge 20 enters the log as illustrated in Figure 3 until the lower end of the spacer plates 21 bears against the upper end of the log.
  • the sharp angle 24 of the spacing plates 21 is then anchored in the log on either side of the corner 10.
  • the lifting of the log is continued, which then obliges the plates 21 to pivot around the axis 22 in pushing back laterally each of the log parts on which they rested. It can be seen that in this movement, illustrated in FIG.
  • the parts of the log are widely spaced from the corner so that the friction of the log on the corner becomes extremely reduced, even zero, and the movement of the log parallel to he corner axis is converted into a bursting movement.
  • the burst movement here results from an axis reaction of the plates 21 on the axis 22 and the force of friction is therefore considerably reduced compared to existing devices.
  • the spacer plates are turned over with respect to their support axis 22 and continue to form an angle between them by pressing on the abutment member 23 from an edge of the adjacent plate 21 opposite the initial edge ment in contact with the stop member 23.
  • the initial spacing which was caused by the pivoting of the spacing plates 21 is therefore maintained so that one ensures an easy progression of the corner in the log even when that -this is very woody wood.
  • the mobility of the carrying bar 6 allows the splitting of long logs even if the lifting means has a stroke less than the length of the log.
  • the invention is not limited to the embodiment described above and it is possible to make variant embodiments.
  • the device according to the invention has been illustrated by an embodiment appearing vertically, the spacer members could be mounted on a corner moving horizontally or obliquely.
  • the device according to the invention can also be produced with a single spacer member disposed on one side of the corner.
  • the part of the log which is opposite the spacer member simply continues to slide on the side of the corner while the other part is separated by the spacer member.
  • successive spacing members along the carrying bar in order to increase the amplitude of the spacing as the log progresses along the carrying bar.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
EP87401964A 1986-09-12 1987-09-02 Vorrichtung zum Spalten von Brennholz Withdrawn EP0260184A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8612776 1986-09-12
FR8612776A FR2603836B1 (fr) 1986-09-12 1986-09-12 Dispositif pour fendre des buches

Publications (1)

Publication Number Publication Date
EP0260184A1 true EP0260184A1 (de) 1988-03-16

Family

ID=9338889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401964A Withdrawn EP0260184A1 (de) 1986-09-12 1987-09-02 Vorrichtung zum Spalten von Brennholz

Country Status (2)

Country Link
EP (1) EP0260184A1 (de)
FR (1) FR2603836B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623228A1 (de) * 1996-06-11 1997-12-18 Bayern Freistaat Trennwerkzeug
US6092572A (en) * 1998-03-26 2000-07-25 Extant Inc. Log splitter with manually operated hydraulic jack
CN102528873A (zh) * 2012-02-06 2012-07-04 常熟通润汽车零部件股份有限公司 劈柴机
CN102528872A (zh) * 2012-02-06 2012-07-04 常熟通润汽车零部件股份有限公司 劈柴机构
FR3059584A1 (fr) * 2016-12-05 2018-06-08 Rabaud Fendeuse de buche perfectionnee

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19616632A1 (de) * 1996-03-26 1997-10-02 Gerd Muenzner Vorrichtung zum Spalten von Stammabschnitten mit Hilfe hydr. Wagenheber in Nutzholz für Holzdreher u. Schnitzer

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2851072A (en) * 1956-07-16 1958-09-09 Harry H Gerjets Wood splitting machine
US3351047A (en) * 1965-03-09 1967-11-07 Charles E Barker Apparatus for repetitive application of a controlled force
US3865163A (en) * 1974-05-15 1975-02-11 Charles M Root Splitter head with spreader arms
US4153088A (en) * 1977-06-30 1979-05-08 King William L Hydraulic log splitter attachment for farm tractors and industrial tractors
FR2415525A1 (fr) * 1978-01-27 1979-08-24 Pierrat Michel Appareil a refendre les buches
US4372360A (en) * 1981-07-29 1983-02-08 Eichlin Harold E Splitting axe
FR2513561A1 (fr) * 1981-09-30 1983-04-01 Lacour Roger Dispositif pour fendre les buches
US4440205A (en) * 1980-08-08 1984-04-03 Alltrade, Inc. Wedge and axe head

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2851072A (en) * 1956-07-16 1958-09-09 Harry H Gerjets Wood splitting machine
US3351047A (en) * 1965-03-09 1967-11-07 Charles E Barker Apparatus for repetitive application of a controlled force
US3865163A (en) * 1974-05-15 1975-02-11 Charles M Root Splitter head with spreader arms
US4153088A (en) * 1977-06-30 1979-05-08 King William L Hydraulic log splitter attachment for farm tractors and industrial tractors
FR2415525A1 (fr) * 1978-01-27 1979-08-24 Pierrat Michel Appareil a refendre les buches
US4440205A (en) * 1980-08-08 1984-04-03 Alltrade, Inc. Wedge and axe head
US4372360A (en) * 1981-07-29 1983-02-08 Eichlin Harold E Splitting axe
FR2513561A1 (fr) * 1981-09-30 1983-04-01 Lacour Roger Dispositif pour fendre les buches

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19623228A1 (de) * 1996-06-11 1997-12-18 Bayern Freistaat Trennwerkzeug
DE19623228C2 (de) * 1996-06-11 1998-09-24 Bayern Freistaat Trennwerkzeug
US6092572A (en) * 1998-03-26 2000-07-25 Extant Inc. Log splitter with manually operated hydraulic jack
CN102528873A (zh) * 2012-02-06 2012-07-04 常熟通润汽车零部件股份有限公司 劈柴机
CN102528872A (zh) * 2012-02-06 2012-07-04 常熟通润汽车零部件股份有限公司 劈柴机构
FR3059584A1 (fr) * 2016-12-05 2018-06-08 Rabaud Fendeuse de buche perfectionnee

Also Published As

Publication number Publication date
FR2603836A1 (fr) 1988-03-18
FR2603836B1 (fr) 1988-12-02

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