WO1999036235A1 - Method of manufacturing part units to end products of different kinds of wood - Google Patents
Method of manufacturing part units to end products of different kinds of wood Download PDFInfo
- Publication number
- WO1999036235A1 WO1999036235A1 PCT/SE1999/000055 SE9900055W WO9936235A1 WO 1999036235 A1 WO1999036235 A1 WO 1999036235A1 SE 9900055 W SE9900055 W SE 9900055W WO 9936235 A1 WO9936235 A1 WO 9936235A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- timber
- units
- wood
- order
- moisture content
- Prior art date
Links
- 239000007795 chemical reaction product Substances 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000002023 wood Substances 0.000 title claims description 4
- 239000003292 glue Substances 0.000 claims abstract description 6
- 235000018185 Betula X alpestris Nutrition 0.000 claims abstract description 3
- 235000018212 Betula X uliginosa Nutrition 0.000 claims abstract description 3
- 240000000731 Fagus sylvatica Species 0.000 claims abstract description 3
- 235000010099 Fagus sylvatica Nutrition 0.000 claims abstract description 3
- 241000218652 Larix Species 0.000 claims abstract description 3
- 235000005590 Larix decidua Nutrition 0.000 claims abstract description 3
- 241000218657 Picea Species 0.000 claims abstract description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims abstract description 3
- 241000018646 Pinus brutia Species 0.000 claims abstract description 3
- 235000011613 Pinus brutia Nutrition 0.000 claims abstract description 3
- 241000219492 Quercus Species 0.000 claims abstract description 3
- 235000016976 Quercus macrolepis Nutrition 0.000 claims abstract description 3
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 241001669679 Eleotris Species 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- 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
- B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
- B27M3/0026—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally
- B27M3/0053—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally using glue
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
Definitions
- the present invention relates to a method in which, with the aid of several units, an end product can be produced that is rather complicated and in which a method using gluing has been utilized.
- the object of the present invention is to provide a rational method for utilizing pure timber and thus achieve considerable savings in the manufacture of wooden products.
- the starting materials are the following types of timber: spruce, pine, birch, beech, oak, larch and timber with equivalent properties.
- a slim trunk with a top diameter of between 80 and 140 mm is selected. This trunk is placed in a water bath so that it acquires a moisture content between 20 and 40 %.
- the water suitably has a temperature somewhere between 15° and 25°.
- each part contains a core part having at least 8 annual rings. This method makes it unnecessary to remove the bark.
- the desired end product is obtained when the individual timber units of desired dampness have been joined together to form different bodies.
- These wooden sleepers are manufactured in exactly the same way as described above, namely tree trunks are placed in a water bath in order to acquire a certain degree of dampness, and are then processed to bars of substantially rectangular shape, provided with polyurethane glue or the like and joined together so that they form sleepers, after which the sleepers are subjected to pressure.
- sleepers it is obvious that not every unit in the sleeper need be as long as the sleeper itself. The latter may consist of several parts arranged one after the other and very inexpensive sleepers can be produced in this way.
- the unit it is extremely advantageous when producing a unit in accordance with the present method, for the unit to consist of heartwood and to have at least eight annual rings.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Forests & Forestry (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The present invention relates to joining different wooden elements by means of wet gluing. In accordance with the invention this is performed by placing trunks of spruce, pine, birch, beech, oak and larch, said trunks usually having a top diameter of approximately 80-400 mm, in a water bath so that the desired moisture content is obtained, after which the trunks are sawn into pieces and joined with the aid of glue under pressure.
Description
METHOD OF MANUFACTURING PART UNITS TO END PRODUCTS OF DIFFERENT KINDS OF WOOD
Various wooden objects can be manufactured from a single unit but it is also feasible, and in certain cases advisable, to use several units and join them together in one way or another.
The present invention relates to a method in which, with the aid of several units, an end product can be produced that is rather complicated and in which a method using gluing has been utilized.
The object of the present invention is to provide a rational method for utilizing pure timber and thus achieve considerable savings in the manufacture of wooden products.
In the present case the starting materials are the following types of timber: spruce, pine, birch, beech, oak, larch and timber with equivalent properties. A slim trunk with a top diameter of between 80 and 140 mm is selected. This trunk is placed in a water bath so that it acquires a moisture content between 20 and 40 %. The water suitably has a temperature somewhere between 15° and 25°. When sufficient moisture has been absorbed by the timber it is cut into parts, generally in such a way that each part contains a core part having at least 8 annual rings. This method makes it unnecessary to remove the bark. The desired end product is obtained when the individual timber units of desired dampness have been joined together to form different bodies. All flat surfaces are provided with glue consisting of polyurethane glue or some other similar glue with the same properties. When the product is glued together it is compressed under a pressure of between 0.6 and 0.8 N/mm2. Finished products may then be surface-treated and possibly impregnated. Timber units from a warm bath can be used with great ingenuity for innumerable different products such as furniture, tables and generally for all kinds of furniture material as well as for wall material.
The railway industry places high demands on rails that are laid, namely that they shall withstand a load of approximately 40 tons. This in turn places considerable demands on the track foundation and sleepers. It has therefore been found that sleepers made from wood h ave advantages over concrete sleepers. These wooden sleepers are manufactured in exactly the same way as described above, namely tree trunks are placed in a water bath in order to acquire a certain degree of dampness, and are then processed to bars of substantially rectangular shape, provided with polyurethane glue or the like and joined together so that they form sleepers, after which the sleepers are subjected to pressure. With regard to sleepers it is obvious that not every unit in the sleeper need be as long as the sleeper itself. The latter may consist of several parts arranged one after the other and very inexpensive sleepers can be produced in this way.
It is extremely advantageous when producing a unit in accordance with the present method, for the unit to consist of heartwood and to have at least eight annual rings.
Claims
1. A method of manufacturing part units to end products of various kinds, characterized in that the wood is selected from spruce, pine, birch, beech, oak, larch and timber with equivalent properties, the selected timber unit having a diameter at the top in the order of 80-140 mm, in that selected timber is placed in a tank for the purpose of acquiring a moisture content in the order of 20-40 %, in that the moisture-treated timber is cut in such a way that each unit contains flat surfaces and a cross section with a number of annual rings, in that the units are glued together with polyurethane glue or equivalent while having a moisture content in the order of 40 %, the units to be joined being subjected to a pressure in the order of 0.6-0.8 N/mm2, and in that when gluing is completed the moisture content is permitted to decrease to 14%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU24451/99A AU2445199A (en) | 1998-01-16 | 1999-01-17 | Method of manufacturing part units to end products of different kinds of wood |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9800105A SE9800105L (en) | 1998-01-16 | 1998-01-16 | Method for producing sub-assemblies for end products of different types of wood |
| SE9800105-0 | 1998-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999036235A1 true WO1999036235A1 (en) | 1999-07-22 |
Family
ID=20409884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/SE1999/000055 WO1999036235A1 (en) | 1998-01-16 | 1999-01-17 | Method of manufacturing part units to end products of different kinds of wood |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2445199A (en) |
| SE (1) | SE9800105L (en) |
| WO (1) | WO1999036235A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002068164A1 (en) * | 2001-02-27 | 2002-09-06 | Canadian Forest Products Ltd. | Composite wood product and method of manufacture |
| WO2010020829A1 (en) * | 2005-01-20 | 2010-02-25 | Riviere Jim | Assembly of solid elements |
| EP3127669A1 (en) * | 2015-08-04 | 2017-02-08 | Binderholz International AG | Method for manufacturing wooden components |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3897581A (en) * | 1973-03-27 | 1975-07-29 | Sumitomo Bakelite Co | Plywood veneer of edge-bonded wet wood pieces and method of making same |
| US3969558A (en) * | 1972-07-18 | 1976-07-13 | Dantani Plywood Co., Ltd. | Veneer sheet of a plurality of thin flat sections of wood |
| DE2947611A1 (en) * | 1979-11-26 | 1981-05-27 | Kurt Ing.(grad.) 8625 Sonnefeld Feyler | METHOD FOR PRODUCING BOARD SLATS FROM ROD |
| SE501131C2 (en) * | 1992-11-04 | 1994-11-21 | Martin Wiklund | Methods of making disc shaped elements of end wood type, as well as plate and elements made therewith |
| EP0650811A1 (en) * | 1993-10-30 | 1995-05-03 | Holzbau Krämer GmbH | Endless timber pole |
| US5593530A (en) * | 1994-07-14 | 1997-01-14 | Hashiguchi; Tetsuya | Laminated lumber and method of manufacturing the same |
-
1998
- 1998-01-16 SE SE9800105A patent/SE9800105L/en not_active Application Discontinuation
-
1999
- 1999-01-17 AU AU24451/99A patent/AU2445199A/en not_active Abandoned
- 1999-01-17 WO PCT/SE1999/000055 patent/WO1999036235A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3969558A (en) * | 1972-07-18 | 1976-07-13 | Dantani Plywood Co., Ltd. | Veneer sheet of a plurality of thin flat sections of wood |
| US3897581A (en) * | 1973-03-27 | 1975-07-29 | Sumitomo Bakelite Co | Plywood veneer of edge-bonded wet wood pieces and method of making same |
| DE2947611A1 (en) * | 1979-11-26 | 1981-05-27 | Kurt Ing.(grad.) 8625 Sonnefeld Feyler | METHOD FOR PRODUCING BOARD SLATS FROM ROD |
| SE501131C2 (en) * | 1992-11-04 | 1994-11-21 | Martin Wiklund | Methods of making disc shaped elements of end wood type, as well as plate and elements made therewith |
| EP0650811A1 (en) * | 1993-10-30 | 1995-05-03 | Holzbau Krämer GmbH | Endless timber pole |
| US5593530A (en) * | 1994-07-14 | 1997-01-14 | Hashiguchi; Tetsuya | Laminated lumber and method of manufacturing the same |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002068164A1 (en) * | 2001-02-27 | 2002-09-06 | Canadian Forest Products Ltd. | Composite wood product and method of manufacture |
| WO2010020829A1 (en) * | 2005-01-20 | 2010-02-25 | Riviere Jim | Assembly of solid elements |
| US8662120B2 (en) | 2005-01-20 | 2014-03-04 | Jim Riviere | Complete assembling of massive elements |
| EP3127669A1 (en) * | 2015-08-04 | 2017-02-08 | Binderholz International AG | Method for manufacturing wooden components |
Also Published As
| Publication number | Publication date |
|---|---|
| SE9800105D0 (en) | 1998-01-16 |
| SE9800105L (en) | 1999-07-17 |
| AU2445199A (en) | 1999-08-02 |
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