EP0054252A1 - Dispositif pour fendre le bois - Google Patents

Dispositif pour fendre le bois Download PDF

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Publication number
EP0054252A1
EP0054252A1 EP81110272A EP81110272A EP0054252A1 EP 0054252 A1 EP0054252 A1 EP 0054252A1 EP 81110272 A EP81110272 A EP 81110272A EP 81110272 A EP81110272 A EP 81110272A EP 0054252 A1 EP0054252 A1 EP 0054252A1
Authority
EP
European Patent Office
Prior art keywords
split
cutting
iron
irons
bar
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
EP81110272A
Other languages
German (de)
English (en)
Other versions
EP0054252B1 (fr
Inventor
Thomas Henning Blomqvist
Thorbjörn Gustav Lidström
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.)
LIDSTROM THORBJORN GUSTAV
Original Assignee
LIDSTROM THORBJORN GUSTAV
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 LIDSTROM THORBJORN GUSTAV filed Critical LIDSTROM THORBJORN GUSTAV
Priority to AT81110272T priority Critical patent/ATE9290T1/de
Publication of EP0054252A1 publication Critical patent/EP0054252A1/fr
Application granted granted Critical
Publication of EP0054252B1 publication Critical patent/EP0054252B1/fr
Expired 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
    • B27L7/06—Arrangements for splitting wood using wedges, knives or spreaders

Definitions

  • a device with two pairs of splitting irons, by means of which a block of wood can be split into four essentially identical parts, is known for example from SE-PS 222 393.
  • the known devices are only suitable for splitting blocks of wood with a relatively small diameter, which are split into two or three sufficiently small logs by means of these devices, which are suitable for burning in wood stoves or open fireplaces.
  • the invention has for its object to improve a device of the aforementioned type so that even larger diameter wooden blocks can be split into logs of the size required for fireplaces of the aforementioned type in a single pass through the device.
  • the advantage of this device is, in particular, that not only does a large number of logs be obtained when the Rammbär collapses, but also that the Rammbär's force is fully exploited by the fact that in the lower levels, in which due to the previous division of the A smaller splitting force is required, the length of the cutting edges is a greater overall.
  • the splitting device 10 shown in FIGS. 3 and 4 consists of an octagonal frame 11 which is attached to the stand 12 shown in FIGS. 1 and 2.
  • the wooden block 13 lies on the splitting device 10 below the hydraulically operated ramming bear 14.
  • the ramming bear has two grooves 15 arranged perpendicular to one another, which divide the lower end face of the ramming bear into four abutting surfaces 15a, which are between the two can penetrate the upper split iron.
  • the cutting edges of the splitting irons are parallel to each other, to the movement direction of the ramming vertical planes.
  • the uppermost split iron 16 extends diametrically in the octagonal frame 11, on the opposite side parts of which the ends of the split iron 16 are detachably arranged in recesses.
  • the next lower equally long split bar 17 is arranged at right angles to the split bar 16.
  • the outer ends of these split bars located in a fourth plane reach through recesses provided in the side parts of the frame 11, as can be seen from FIG. 4.
  • the block of wood can be held on the splitting device by any means not shown in the drawing. These can consist, for example, of grippers that release it at the moment the ramming bear hits. At the top of the splitting device there can also be horizontal tabs which can be lowered against the restoring force of springs, which keep the wooden block at a distance from the uppermost splitting iron and only lower when the ramming bear hits the wooden block.
  • the splitting of the block of wood begins with the impact of the block of wood on the first splitting iron 16, so that it is split into two parts when its lower end face strikes the second splitting iron 17 (FIG. 6).
  • the two halves of the block are split a total of four parts, which essentially have the shape of a quadrant.
  • these parts are pushed radially outwards, as shown in FIG. 7.
  • each of these parts is split into a sector-shaped inner log and an outer curved log.
  • the four inner logs fall freely through the ring of the split bar 18, while the outer logs each hit one of the split bars 20, 21, 22, 23 and are split into two smaller logs by means of this.
  • the cutting edges of the splitting irons have a certain cutting angle, so that when splitting the wooden block the risk is avoided as far as possible that the cutting edges penetrate into the wooden block at an angle to the fibrous structure, the cutting edges rather in essentially split the block of wood in the direction of the fiber structure, whereby the splitting forces can be kept low.
  • the outer surface 18b of the ring-shaped split bar 18 is formed in its upper cutting area 18b by a relatively narrow conical surface, which merges into a wider, concave-widening annular surface 18c with a radius r, the surface of which adjoins the outer edge surface 18b with the inside surface of the split bar forms, which is smaller than the cutting angle b of the split bar, as shown in FIG. 4.
  • the result of this is that the cutting edge has essentially the same direction as the direction of movement of the parts 13a or runs parallel to the gap surfaces thereof when they strike the cutting edge of the annular split bar.
  • the gap surfaces created with the cutting edge of this wedge 18 thus run in the direction of the fiber structure.
  • the logs 13b thus slide with their lower edges along the concave surface 18c and are thus pushed outwards.
  • This design of the split bar 18 facilitates the splitting because sliding friction resistances on the The outer surface of the split bar 18 and the cutting through of the fiber structure can be avoided. The splitting forces occurring here are significantly reduced for these two reasons.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Shearing Machines (AREA)
  • Graft Or Block Polymers (AREA)
  • Materials For Medical Uses (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Arc Welding In General (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP81110272A 1980-12-12 1981-12-09 Dispositif pour fendre le bois Expired EP0054252B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81110272T ATE9290T1 (de) 1980-12-12 1981-12-09 Geraet zum spalten von brennholz.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8008770A SE422174B (sv) 1980-12-12 1980-12-12 Vedklyvningsanordning
SE8008770 1980-12-12

Publications (2)

Publication Number Publication Date
EP0054252A1 true EP0054252A1 (fr) 1982-06-23
EP0054252B1 EP0054252B1 (fr) 1984-09-12

Family

ID=20342464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81110272A Expired EP0054252B1 (fr) 1980-12-12 1981-12-09 Dispositif pour fendre le bois

Country Status (8)

Country Link
US (1) US4434825A (fr)
EP (1) EP0054252B1 (fr)
AT (1) ATE9290T1 (fr)
CA (1) CA1174570A (fr)
DE (1) DE3166090D1 (fr)
FI (1) FI813966L (fr)
NO (1) NO151112C (fr)
SE (1) SE422174B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4782866A (en) * 1988-01-19 1988-11-08 Charlie Valdez Log splitting head
AT401750B (de) * 1995-03-29 1996-11-25 Hechenblaickner Josef Vorrichtung zum spalten von holzrohlingen
US5791389A (en) * 1997-03-28 1998-08-11 Yvonne Company Apparatus and method for forming firewood logs
AT514488A3 (de) * 2013-06-21 2015-12-15 Binderberger Maschb Gmbh Spaltmesservorrichtung
FR3105060A1 (fr) * 2019-12-23 2021-06-25 Home Clotures D'aquitaine Bloc de decoupe pour rondins de bois et installation comprenant un tel bloc

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800937A (en) * 1988-01-14 1989-01-31 Mangus Sr Kenneth H Log splitting apparatus
US4830071A (en) * 1988-03-22 1989-05-16 Gollahon Robert J Wood processing machine
US6609545B1 (en) * 2001-06-15 2003-08-26 Ian Van Gelder Wood cutting head structure
ITTV20070159A1 (it) * 2007-09-20 2009-03-21 Tollot Raffaelo Snc Off Macchina spaccalegna con dispositivo di centraggio dell'elemento da spaccare rispetto alla testata stessa e sistema di espulsione a testa di trafila.
US20110036455A1 (en) * 2009-08-14 2011-02-17 Charlie Valdez Log splitter
US9061436B2 (en) 2010-05-11 2015-06-23 Brent A. Fisher Staged contact splitting blade assembly
AT14246U1 (de) * 2014-06-18 2015-06-15 Philipp Glöckner Zündholzvorrichtung für stehende Holzspalter
CN107283583B (zh) * 2017-07-11 2020-02-07 马正平 一种半自动劈柴装置
CN107283582B (zh) * 2017-07-11 2020-02-07 林明繁 一种自动劈柴装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE198082C (fr) *
CH85257A (de) * 1919-08-30 1920-10-01 A Eichmann Maschine zum Spalten von Holzklötzen.
US1594599A (en) * 1923-04-11 1926-08-03 John E Carlson Machine for cutting reed
US1701001A (en) * 1927-08-25 1929-02-05 Francis H Hampton Wood-chopping device
DE507680C (de) * 1928-08-26 1930-09-19 G J Killmeyer Holz U Metallwar Kleinholzspalter mit mehreren kreuzfoermig angeordneten Messern
FR723802A (fr) * 1931-10-02 1932-04-15 Rotin Sa Du Outil et porte-outil formant déversoir pour machines à fendre le rotin ou analogue
SE222393C1 (fr) * 1964-09-30 1968-09-03
DE1453349A1 (de) * 1964-09-30 1969-07-31 Miag Muehlenbau & Ind Gmbh Spaltmesser fuer Holz-Spaltmaschinen
US4294295A (en) * 1978-09-25 1981-10-13 Bloomfield Farms, Inc. Apparatus for cutting and splitting firewood

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE198082C (fr) *
CH85257A (de) * 1919-08-30 1920-10-01 A Eichmann Maschine zum Spalten von Holzklötzen.
US1594599A (en) * 1923-04-11 1926-08-03 John E Carlson Machine for cutting reed
US1701001A (en) * 1927-08-25 1929-02-05 Francis H Hampton Wood-chopping device
DE507680C (de) * 1928-08-26 1930-09-19 G J Killmeyer Holz U Metallwar Kleinholzspalter mit mehreren kreuzfoermig angeordneten Messern
FR723802A (fr) * 1931-10-02 1932-04-15 Rotin Sa Du Outil et porte-outil formant déversoir pour machines à fendre le rotin ou analogue
SE222393C1 (fr) * 1964-09-30 1968-09-03
DE1453349A1 (de) * 1964-09-30 1969-07-31 Miag Muehlenbau & Ind Gmbh Spaltmesser fuer Holz-Spaltmaschinen
US4294295A (en) * 1978-09-25 1981-10-13 Bloomfield Farms, Inc. Apparatus for cutting and splitting firewood

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4782866A (en) * 1988-01-19 1988-11-08 Charlie Valdez Log splitting head
AT401750B (de) * 1995-03-29 1996-11-25 Hechenblaickner Josef Vorrichtung zum spalten von holzrohlingen
US5791389A (en) * 1997-03-28 1998-08-11 Yvonne Company Apparatus and method for forming firewood logs
AT514488A3 (de) * 2013-06-21 2015-12-15 Binderberger Maschb Gmbh Spaltmesservorrichtung
AT514488B1 (de) * 2013-06-21 2016-09-15 Binderberger Maschb Gmbh Spaltmesservorrichtung
FR3105060A1 (fr) * 2019-12-23 2021-06-25 Home Clotures D'aquitaine Bloc de decoupe pour rondins de bois et installation comprenant un tel bloc
WO2021130436A1 (fr) * 2019-12-23 2021-07-01 Home Clotures D'aquitaine Bloc de decoupe pour rondins de bois et installation comprenant un tel bloc

Also Published As

Publication number Publication date
NO814237L (no) 1982-06-14
ATE9290T1 (de) 1984-09-15
NO151112C (no) 1985-02-13
US4434825A (en) 1984-03-06
FI813966L (fi) 1982-06-13
EP0054252B1 (fr) 1984-09-12
DE3166090D1 (en) 1984-10-18
SE422174B (sv) 1982-02-22
CA1174570A (fr) 1984-09-18
NO151112B (no) 1984-11-05

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