EP0080408A1 - Maschine zum Herstellen von Schindeln - Google Patents

Maschine zum Herstellen von Schindeln Download PDF

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Publication number
EP0080408A1
EP0080408A1 EP82402097A EP82402097A EP0080408A1 EP 0080408 A1 EP0080408 A1 EP 0080408A1 EP 82402097 A EP82402097 A EP 82402097A EP 82402097 A EP82402097 A EP 82402097A EP 0080408 A1 EP0080408 A1 EP 0080408A1
Authority
EP
European Patent Office
Prior art keywords
blade
plane
facet
cutting edge
support
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
EP82402097A
Other languages
English (en)
French (fr)
Other versions
EP0080408B1 (de
Inventor
Antony Claux
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
Priority to AT82402097T priority Critical patent/ATE22034T1/de
Publication of EP0080408A1 publication Critical patent/EP0080408A1/de
Application granted granted Critical
Publication of EP0080408B1 publication Critical patent/EP0080408B1/de
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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/02—Manufacture or reconditioning of specific semi-finished or finished articles of roofing elements, e.g. shingles

Definitions

  • the present invention relates to a machine for making shingles from pieces of wood such as logs.
  • the shingles are strips of wood intended to cover, like scales, the roofs or walls of dwellings; this covering method is very old and very effective, both from the point of view of the seal it provides, and from the point of view of thermal insulation, as from the point of view of its longevity; it is recalled, however, that the excellent characteristics mentioned above of this material are only obtained if the fibers of the wood constituting the shingle are directed in the direction of the slope.
  • the object of the present invention is to propose a machine automatically reproducing the old process and making it possible to obtain shingles of identical quality with, however, a considerable reduction in cost compared to the manual process.
  • a device for splitting pieces of wood with a view to forming shingles, by means of an alternately mechanically moved blade is characterized in the most general way in that said blade is pivotally mounted on a support, around an axis close to its cutting edge and substantially parallel thereto; this pivoting assembly of the blade seems to be at the origin of the proper functioning of the machine, or device, of the invention; indeed during previous tests, a blade mounted fixed on a translatable carriage led to untimely bursts of the piece of wood to be cut.
  • said blade has a substantially flattened rectangular parallelepiped shape, its cutting edge being in the form of a dihedral situated along one of the long sides of the rectangle; preferably the edge of the dihedral constituting the cutting edge is situated approximately between the median plane of the thickness of the blade and the plane of one of the faces thereof; preferably also the bisector plane of the dihedron forms with the median plane an angle such that one of the facets of the dihedron has a width significantly greater than that of the other facet.
  • the axis of articulation of the blade is, more precisely, coincident, or very close, with the line of intersection of the plane of the facet of smaller width with the plane of the face of the blade adjacent to this facet.
  • the pivoting of the blade is limited by two adjustable abutment positions, and the blade is biased lightly in the direction of the so-called first position of abutment situated on the side of the facet of greater width.
  • the blade is articulated at each of its ends on said support and the support is itself driven by an alternating rectilinear translational movement of direction substantially perpendicular to the cutting edge of the blade; care will be taken that the means for adjusting the first stop position make it possible to adjust this position so that the facet of smaller width is parallel to the plane of translation of the blade support.
  • a device of the invention further comprises a member for gripping pieces of wood to be split, said member essentially consisting of a pair of jaws intended to bite into the opposite edges of the piece and to present that -this end facing the blade, the direction of the wood fibers being generally parallel to the plane of translation of the blade.
  • the translation plane is a horizontal plane
  • the gripping member is located above the translation plane
  • the facet of smaller width being located above the widest facet
  • the slight stress of the blade is a downward stress resulting from its own weight.
  • both the stressing force of the blade, or its weight in the aforementioned particular case, the respective width of the facets of the cutting edge, the thickness of the blade, as well as its width must be defined by tests following the characteristics of the wood used, namely the species, age, dryness, etc.
  • the blade 1 is cut from a rectangular plate, or a flattened parallelepiped, made of a suitable steel; the edge of the blade consists of the edge of a dihedral formed by upper 5 and lower 6 facets; facet 5 has a width 1 - significantly less than the width L of facet 6; the cutting edge 4 or edge of the dihedral of the facets is situated slightly above the median plane 7 of the blade; the dihedral bisecting plane, materialized by the bisector 8, is inclined on the median plane 7 so as to give the facets the abovementioned disproportion.
  • the blade by means of its support, is driven in an alternating movement of translation back and forth represented by the arrows 10; this movement takes place in a plane, called the plane of carriage, perpendicular to the cutting edge 4 of the blade; such a plan is materialized by the dashed lines 11; there is also shown in fig.l a piece of wood 9 in the form of a log kept in a fixed position by means of jaws such as 12 being taken at each of its ends, the log is positioned so that its underside 13 is located at a distance h below the planing plane; the plan of work determines on the edge of the log the line of impact of the edge of the blade and the distance h will, after splitting, the thickness of the wooden slat constituting the draft of a shingle.
  • the blade Thanks to its pivoting mobility, the blade will be able to follow the fibers of the wood which are generally parallel to the plane of translation, or of turning, of the blade.
  • This pivoting nature of the blade appears to be one of the causes of the proper functioning of the device of the invention; however, an additional condition is required, namely: that the axis of articulation 3 of the blade on its support must be as close as possible to the line 14 of intersection of the plane of the facet 5 and the upper face 15 of the blade ; in the case of the figure, the axis is optimally coincident with line 14.
  • the blade 1 is pivotally held between two stop positions, respectively, a first lower stop 16 and upper stop position 17; these stop positions are adjustable using means which will be described later; the stop 16 is adjusted so that the upper facet 5 of the cutting edge is substantially parallel to the turning plane which is in the case of the figure a horizontal plane; in this particular case, the weight overhang of the blade relative to its pivot axis will be used to serve as a permanent stress on the blade towards its lower stop position.
  • the plane of the upper facet 5 of the cutting edge will be approximately parallel to the fibers of the wood of the log 9.
  • a machine is shown in elevation and in plan respectively. the operating principles described with the previous figures.
  • Such a machine essentially consists of a chassis 20 supporting members 21 for positioning and holding logs such as 9, drive members 22 of a blade-holder carriage 23 which can move back and forth in upper side members 24 of the chassis, of a pair of connecting rods 25 connecting large wheels 26 to the carriage 23 by means of a transverse bar 27, a conveyor belt 28, - slats of split wood and a hopper receiving 29 slats;
  • the means for positioning and holding the logs are constituted by a mast 30 along which can move under the action of a jack 31, a vice 32 for clamping logs by a pair of opposing jaws such as 12 under the action of a jack 34 .
  • the vertical displacement of the vice 32 takes place step by step according to a pneumatic alogical control, the height of a step corresponding to the thickness h of a slat.
  • Means for automatically supplying jaw logs can be provided.
  • the blade holder carriage is shown in more detail.
  • it is mainly formed of a pair of flanges 30 and 31 secured to the crossbar 27 at the end of which the connecting rods 25 are articulated.
  • the outer faces of the flanges are provided with a double train of rollers 32 intended to guide the rolling of the carriage on rails 33 fixed inside the upper side members 24 of the chassis; centering rollers 34 mounted on the flanges center the carriage between the rails.
  • the blade 1 is supported by the flanges of the carriage, (similar to the elements 2 ′ and 2 ′′ in fig.l) by means of a pair of supports 36 each comprising a groove 37 in which the blade is engaged at its ends; each support 36 is articulated by means of a ring 38 (or a ball bearing) on the flange which supports it; each support further comprises at the rear of the groove 37 an adjustment screw 39 making it possible to adjust the position of the blade in the groove so that the line 14 (fig. 1, edge of the upper facet) coincides with the axis of articulation of the support on the flange; such an adjustment is necessary to compensate for the loss of blade width after resharpening.
  • the abovementioned upper and lower stop positions are determined by means of a filmed rod 40 secured to a flange; the ends of the rod 40 are provided with rubber end caps such as 41; as shown in fig.5, the blade 1 is in the lower stop position; if under the effect of the impact against the log for example, the blade 1 were to pivot upwards, an extension arm 42 secured to the support 36 would come into abutment against the end piece 41 and the blade would then be in the position of so-called upper stop.
  • Fig.7 there is shown a device similar to that of the preceding figures in which the blade works in a vertical planing plane.
  • the different organs of this machine have been assigned the reference numbers assigned to analogous organs of the machine in the preceding figures; we note that in this configuration case the connecting rods 25 'push the arm 27' towards the log 9 'instead of pulling it as in the previous case. It will also be noted that, failing gravity, the blade is biased into the lower stop position by a small spring not shown in the figures.
  • the means for moving the carriage instead of being mechanical means by connecting rods, could be hydraulic or pneumatic means and that the means for holding and advancing the logs could be mechanical means, for example by screw; more generally, it should be understood that the present invention is not limited to the embodiments described or shown above but that its scope is defined by its general characteristics as they have been stated above.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Food-Manufacturing Devices (AREA)
  • Soil Working Implements (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP82402097A 1981-11-19 1982-11-17 Maschine zum Herstellen von Schindeln Expired EP0080408B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82402097T ATE22034T1 (de) 1981-11-19 1982-11-17 Maschine zum herstellen von schindeln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8121920 1981-11-19
FR8121920A FR2516434A1 (fr) 1981-11-19 1981-11-19 Machine pour la fabrication des bardeaux

Publications (2)

Publication Number Publication Date
EP0080408A1 true EP0080408A1 (de) 1983-06-01
EP0080408B1 EP0080408B1 (de) 1986-09-10

Family

ID=9264277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82402097A Expired EP0080408B1 (de) 1981-11-19 1982-11-17 Maschine zum Herstellen von Schindeln

Country Status (4)

Country Link
EP (1) EP0080408B1 (de)
AT (1) ATE22034T1 (de)
DE (1) DE3273234D1 (de)
FR (1) FR2516434A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552700A1 (fr) * 1983-10-04 1985-04-05 Satge Jean Machine a fabriquer les bardeaux de bois
WO1986001452A1 (en) * 1984-08-30 1986-03-13 Halftan Nilsen Method and device for splitting chipboard
GB2316356A (en) * 1996-08-14 1998-02-25 C D R Ltd Board splitting apparatus
KR102609453B1 (ko) * 2023-08-10 2023-12-01 이삼수 너와 제조 설비 및 이를 사용한 너와 제조 공정
FR3145109A1 (fr) 2023-01-23 2024-07-26 Ateco Bois Machine de fendage de bois

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2183479A (en) * 1937-07-27 1939-12-12 Elsworth H Jenkins Shingle making or wood shake cutting machine
US2365932A (en) * 1942-09-29 1944-12-26 Richard E Bierd Art of splitting shakes and a machine therefor
DE1147747B (de) * 1958-07-08 1963-04-25 Wilhelm Gronebaum Holzspaltmaschine
US3224477A (en) * 1951-10-10 1965-12-21 Joenkoeping Vulcan Ab Knife structures particularly intended for the peeling of veneer
CA980664A (en) * 1974-03-26 1975-12-30 Her Majesty In Right Of Canada As Represented By The Minister Of The Dep Artment Of The Environment Tree cross-cutting blade

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2183479A (en) * 1937-07-27 1939-12-12 Elsworth H Jenkins Shingle making or wood shake cutting machine
US2365932A (en) * 1942-09-29 1944-12-26 Richard E Bierd Art of splitting shakes and a machine therefor
US3224477A (en) * 1951-10-10 1965-12-21 Joenkoeping Vulcan Ab Knife structures particularly intended for the peeling of veneer
DE1147747B (de) * 1958-07-08 1963-04-25 Wilhelm Gronebaum Holzspaltmaschine
CA980664A (en) * 1974-03-26 1975-12-30 Her Majesty In Right Of Canada As Represented By The Minister Of The Dep Artment Of The Environment Tree cross-cutting blade

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552700A1 (fr) * 1983-10-04 1985-04-05 Satge Jean Machine a fabriquer les bardeaux de bois
WO1986001452A1 (en) * 1984-08-30 1986-03-13 Halftan Nilsen Method and device for splitting chipboard
GB2316356A (en) * 1996-08-14 1998-02-25 C D R Ltd Board splitting apparatus
GB2316356B (en) * 1996-08-14 2000-04-05 C D R Ltd Laminated board splitting apparatus
FR3145109A1 (fr) 2023-01-23 2024-07-26 Ateco Bois Machine de fendage de bois
KR102609453B1 (ko) * 2023-08-10 2023-12-01 이삼수 너와 제조 설비 및 이를 사용한 너와 제조 공정

Also Published As

Publication number Publication date
FR2516434B3 (de) 1984-09-28
DE3273234D1 (en) 1986-10-16
FR2516434A1 (fr) 1983-05-20
EP0080408B1 (de) 1986-09-10
ATE22034T1 (de) 1986-09-15

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