EP0167013A2 - Verfahren zum Schneiden von Rundholz - Google Patents

Verfahren zum Schneiden von Rundholz Download PDF

Info

Publication number: EP0167013A2
Authority: EP; European Patent Office
Prior art keywords: cuts; pieces; log; cut; timber
Prior art date: 1984-07-05
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

EP85107022A

Other languages

English (en)

French (fr)

Other versions

EP0167013A3 (en

EP0167013B1 (de

Inventor

Olavi Jaakkola

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.)

Schauman Wood Oy

Original Assignee

Schauman Wood Oy

Wilh Schauman Oy AB

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.)

1984-07-05

Filing date

1985-06-07

Publication date

1986-01-08

1985-06-07 Application filed by Schauman Wood Oy, Wilh Schauman Oy AB filed Critical Schauman Wood Oy

1985-06-07 Priority to AT85107022T priority Critical patent/ATE52440T1/de

1986-01-08 Publication of EP0167013A2 publication Critical patent/EP0167013A2/de

1987-09-09 Publication of EP0167013A3 publication Critical patent/EP0167013A3/en

1990-05-09 Application granted granted Critical

1990-05-09 Publication of EP0167013B1 publication Critical patent/EP0167013B1/de

2005-06-07 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000005520 cutting process Methods 0.000 title claims abstract description 35
238000000034 method Methods 0.000 title claims abstract description 32
210000000056 organ Anatomy 0.000 claims abstract description 14
239000002994 raw material Substances 0.000 abstract description 10
238000010276 construction Methods 0.000 abstract description 2
238000003801 milling Methods 0.000 description 6
IHQKEDIOMGYHEB-UHFFFAOYSA-M sodium dimethylarsinate Chemical class [Na+].C[As](C)([O-])=O IHQKEDIOMGYHEB-UHFFFAOYSA-M 0.000 description 2
239000013067 intermediate product Substances 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000000047 product Substances 0.000 description 1
239000002699 waste material Substances 0.000 description 1
239000002023 wood Substances 0.000 description 1

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B1/00—Methods for subdividing trunks or logs essentially involving sawing

Definitions

the present invention relates to a method of cutting round timber such as logs into pieces, in which method the timber is cut in the process line with parallel cuts and with cuts obliquely positioned with respect to the parallel cuts.
the most common machine for cutting round timber such as logs or similar is saw, such as frame saw, band saw, or circular saw.
milling cutters are used for cutting round timber into pieces alone or together with saw blades.
a feasible feature of using cutters is that the type of wood chips produced in milling cutters is, better than sawdust, suited for use as raw material in paper and pulp industry.
the most common final or intermediate products produced by known methods of cutting round timber are timber pieces of rectangular cross section, such as spars, boards and planks of various sorts.
the object of the present invention is to afford a new, more feasible and economical method in order to avoid said drawbacks, i.e. to save raw material and labour costs and feasibly produce timber pieces with oblique sides, and, when required, also spars, boards and/or planks. It is also an objective of the invention to provide a means in which the equipment will be economical and simple and thus bring about savings in the construction costs of the plant.
the principal charasteristic feature of the invention is that at least two or more oblique pieces are cut from the log with one orientation, the same direction being maintained throughout the whole cutting process, and that, when required, also spars, planks, and/or boards are cut at the same time.
a method in accordance with the invention leads to an optimal use of raw material and savings in labour, as will be proven by the the following detailed description of the invention and the comparison with corresponding known methods representing the Prior Art.
FIG. 1 Figures A to K in the attached drawing illustrate the State of Art related to the invention.
Figure A represents a cross section of an oblique-sided timber piece produced with traditional methods; figure B is a shelf board or similar made of such timber pieces.
Figures C, D, and D illustrate a known method of cutting timber into pieces and producing oblique-sided timber pieces.
Figures F, G, H, I, J, and K represent another method of producing oblique-sided timber pieces.
Figures 1 to 7 illustrate some embodiments of the present invention.
Figure 1 is a plan view of a timber cutting line carried out in accordance with the inv P ntion.
Figure 2 shows a cross section of a log entering the process in accordance with the method of the invention
figure 3 shows a cross section of a log processed and cut with the method.
Figures 4, 5, 6, and 7 show some alternative feasible patterns of cutting logs.
trapezoidal timber pieces 10 illustrated in figure A have been made as shown in figures C, D, and E. These timber pieces 10 have been assembled to for instance shelf boards illustrated in figure B.
log 12 have been cut in a sawing- milling line into rectangular timber pieces 13, 14, 15, and 16.
pieces 15 and/or 16 For producing oblique-sided pieces 10 shown in figure A, for instance pieces 15 and/or 16 (figure D) have been separated from log 12 having been sawn in the way shown in figure C. Thereafter pieces 15 and 16 have been taken to a separate processing line, where parts 20 have been removed from pieces 15, 16 by sawing and/or planing as shown in figure E.
FIG. 1 Another known method of making oblique-sided timber pieces is illustrated in figures F to K.
the log is at first turned on a lathe to completely round piece 19, which is thereafter sawn 21 to two halves 22 and 23.
Said halves 22 and 23 are dried in a separate stage, after which each half 22, 23 are separately sawn and/or milled so that their cross sections become trapezoidal; i.e. two opposite sides 25 of the halves 22, 23 will be parallel, while two other opposite sides 26 will be oblique in respect with each other.
raw material log 40 is brought by means of conveyor 50 to a cutting stage in accordance with the invention.
Figure 2 shows the cross section of log 40, its base 41a and top 41b.
Log 40 is fed from behind and/or from the side onto the feeding conveyor 50, whose idler rollers are indicated with numbers 51 and 52.
cutting line in which the procedure in accordance with the invention has been implemented, which cutting line may comprise for instance cutting organs shown in figure 1, which cutting organs comprise lateral levelling organs 53 and 54, which may be combined with oblique cutting organs and top and bottom levelling organs 55, which also may be combined with oblique cutting organs.
cutting organs comprise lateral levelling organs 53 and 54, which may be combined with oblique cutting organs and top and bottom levelling organs 55, which also may be combined with oblique cutting organs.
mill and/or saw 58 from log 40 timber pieces 42, 43, 44, and 45.
saws 58 or milling cutters there may also be oblique cutting organs 56 and 57.
This cutting and/or sawing produces rectangular timber pieces 42 and 43 and trapezoidal timber pieces 44 and 45.
Figures 4, 5, 6, and 7 illustrate some alternative log cutting patterns.
the cutting pattern determines the number of required cutting organs and milling cutters and the need of oblique cutting organs.
a plank or spar 49 is taken from the center part of the log, and two oblique-sided pieces 4 and 45 are separated from both broad sides of the spar 49.
two planks or boards 42 and 43 are taken from the center part of the log, and oblique-sided pieces 44 and 45 are separated from their broad sides.
two planks or spars 42 and 43 are taken from the center part of the log, and from their each side are taken oblique-sided pieces 44, 45, 47, 48, so that surface parts 46 consist only a very small portion of the whole cross section of the log.
the cutting line is used for cutting into pieces very many different log sizes, there will be a relatively grat number of cutting organs, the oblique cutting organs included, yet arranged in such a way, that when cutting smaller logs a part of these organs may be out of operation.
the round cross-sectional area of the log can be used more efficiently compared with the situation where only pieces with rectangular cross section are produced. This fact is easy to perceive when comparing for instance cutting patterns of figures C and 6 of the Application.

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Wood Science & Technology (AREA)
Forests & Forestry (AREA)
Debarking, Splitting, And Disintegration Of Timber (AREA)
Chemical And Physical Treatments For Wood And The Like (AREA)
Ropes Or Cables (AREA)
Lubricants (AREA)

EP85107022A 1984-07-05 1985-06-07 Verfahren zum Schneiden von Rundholz Expired - Lifetime EP0167013B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT85107022T ATE52440T1 (de)	1984-07-05	1985-06-07	Verfahren zum schneiden von rundholz.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FI842710A FI76726C (fi)	1984-07-05	1984-07-05	Foerfarande foer styckning av runt saogstockar.
FI842710		1984-07-05

Publications (3)

Publication Number	Publication Date
EP0167013A2 true EP0167013A2 (de)	1986-01-08
EP0167013A3 EP0167013A3 (en)	1987-09-09
EP0167013B1 EP0167013B1 (de)	1990-05-09

Family

ID=8519355

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP85107022A Expired - Lifetime EP0167013B1 (de)	1984-07-05	1985-06-07	Verfahren zum Schneiden von Rundholz

Country Status (4)

Country	Link
EP (1)	EP0167013B1 (de)
AT (1)	ATE52440T1 (de)
DE (1)	DE3577518D1 (de)
FI (1)	FI76726C (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0294997A3 (de) *	1987-06-12	1990-01-31	Erling Jim Andersen	Verfahren und Vorrichtung zum Sägen von Baumstämmen
EP0388507A3 (de) *	1989-03-23	1991-07-10	Berthold Fries	Holzbalken und Verfahren zu dessen Herstellung
WO1998041370A1 (en) *	1997-03-19	1998-09-24	Ab Älvsbyhus	A method to produce elongated objects of wood
WO1999062679A1 (en) *	1998-05-29	1999-12-09	Hammarstroem Lars	A method for dividing a log and a wood unit
AT406131B (de) *	1998-07-17	2000-02-25	Wolf Systembau Gmbh & Co Kg	Verfahren und vorrichtung zum herstellen von acht- oder mehrseitigen kanthölzern
WO2016020848A1 (en) *	2014-08-08	2016-02-11	Stora Enso Oyj	A gluelam structural member and a method of producing such a gluelam structural member
CN117584222A (zh) *	2023-12-27	2024-02-23	广东联邦家私集团有限公司	一种速生小径材的拼板工艺和拼接板材

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE290153C (de) *
US3552457A (en) *	1968-05-29	1971-01-05	Mac Millan Bloedel Ltd	Log break-down method and apparatus
US3903943A (en) *	1974-04-15	1975-09-09	Weyerhaeuser Co	Log cutting and rejoining process
IT1116595B (it) *	1979-06-05	1986-02-10	Franciosi Giovanni	Metodo e dispositivo per la segazione di tronchi dotati di naturale conicita'per ottenere il massimo rendimento in travi parallelepipede a sezione rettangolare con tolleranze d'uso
US4239069A (en) *	1979-08-10	1980-12-16	Zimmerman Edwin H	Automatic cant production machine

1984
- 1984-07-05 FI FI842710A patent/FI76726C/fi not_active IP Right Cessation
1985
- 1985-06-07 DE DE8585107022T patent/DE3577518D1/de not_active Expired - Lifetime
- 1985-06-07 AT AT85107022T patent/ATE52440T1/de not_active IP Right Cessation
- 1985-06-07 EP EP85107022A patent/EP0167013B1/de not_active Expired - Lifetime

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0294997A3 (de) *	1987-06-12	1990-01-31	Erling Jim Andersen	Verfahren und Vorrichtung zum Sägen von Baumstämmen
EP0388507A3 (de) *	1989-03-23	1991-07-10	Berthold Fries	Holzbalken und Verfahren zu dessen Herstellung
WO1998041370A1 (en) *	1997-03-19	1998-09-24	Ab Älvsbyhus	A method to produce elongated objects of wood
WO1999062679A1 (en) *	1998-05-29	1999-12-09	Hammarstroem Lars	A method for dividing a log and a wood unit
AT406131B (de) *	1998-07-17	2000-02-25	Wolf Systembau Gmbh & Co Kg	Verfahren und vorrichtung zum herstellen von acht- oder mehrseitigen kanthölzern
US6240988B1 (en)	1998-07-17	2001-06-05	Wol Systembau Gesellschaft M.B.H.	Process and device for production of octagonal or polygonal beams
RU2184647C2 (ru) *	1998-07-17	2002-07-10	Вольф Зюстембау Гезелльшафт М.Б.Х.	Способ обработки бревен резанием и устройство для его осуществления
WO2016020848A1 (en) *	2014-08-08	2016-02-11	Stora Enso Oyj	A gluelam structural member and a method of producing such a gluelam structural member
US10480190B2 (en)	2014-08-08	2019-11-19	Stora Enso Oyj	Gluelam structural member and a method of producing such a gluelam structural member
EA037959B1 (ru) *	2014-08-08	2021-06-15	Стора Энсо Ойй	Клееный древесный конструктивный элемент и способ изготовления такого клееного древесного конструктивного элемента
CN117584222A (zh) *	2023-12-27	2024-02-23	广东联邦家私集团有限公司	一种速生小径材的拼板工艺和拼接板材

Also Published As

Publication number	Publication date
FI842710L (fi)	1986-01-06
FI76726C (fi)	1988-12-12
FI76726B (fi)	1988-08-31
FI842710A0 (fi)	1984-07-05
EP0167013A3 (en)	1987-09-09
DE3577518D1 (de)	1990-06-13
ATE52440T1 (de)	1990-05-15
EP0167013B1 (de)	1990-05-09

Legal Events

Date	Code	Title	Description
1985-11-09	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1986-01-08	AK	Designated contracting states	Designated state(s): AT BE CH DE FR GB LI LU NL SE
1987-07-23	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1987-09-09	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB LI LU NL SE
1987-12-02	17P	Request for examination filed	Effective date: 19871008
1989-02-22	17Q	First examination report despatched	Effective date: 19890110
1990-03-24	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1990-05-09	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB LI LU NL SE
1990-05-09	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19900509 Ref country code: BE Effective date: 19900509
1990-05-09	REF	Corresponds to:	Ref document number: 52440 Country of ref document: AT Date of ref document: 19900515 Kind code of ref document: T
1990-06-13	REF	Corresponds to:	Ref document number: 3577518 Country of ref document: DE Date of ref document: 19900613
1990-07-04	RAP2	Party data changed (patent owner data changed or rights of a patent transferred)	Owner name: SCHAUMAN WOOD OY
1990-08-31	ET	Fr: translation filed
1990-10-16	NLV1	Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
1990-10-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LU Free format text: LAPSE BECAUSE OF REVOCATION BY EPO Effective date: 19901031
1990-12-31	BECN	Be: change of holder's name	Effective date: 19900509
1991-02-19	PLBI	Opposition filed	Free format text: ORIGINAL CODE: 0009260
1991-04-10	26	Opposition filed	Opponent name: PALSGAARD TRAE A/S Effective date: 19910208
1993-08-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19930830 Year of fee payment: 9
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1994-06-15	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19940615 Year of fee payment: 10
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1994-08-10	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: PATENT REVOKED
1994-09-28	27W	Patent revoked	Effective date: 19940516
1994-10-03	EPTA	Lu: last paid annual fee
1994-10-05	GBPR	Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state	Free format text: 940516
1994-10-12	R27W	Patent revoked (corrected)	Effective date: 19940516
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1995-01-31	EUG	Se: european patent has lapsed	Ref document number: 85107022.7 Effective date: 19940928

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