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WO2004001153A1 - A panel having a wooden body made by board-shaped building elements - Google Patents

A panel having a wooden body made by board-shaped building elements Download PDF

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Publication number
WO2004001153A1
WO2004001153A1 PCT/SE2003/000977 SE0300977W WO2004001153A1 WO 2004001153 A1 WO2004001153 A1 WO 2004001153A1 SE 0300977 W SE0300977 W SE 0300977W WO 2004001153 A1 WO2004001153 A1 WO 2004001153A1
Authority
WO
WIPO (PCT)
Prior art keywords
boards
board
building elements
panel
shaped building
Prior art date
Application number
PCT/SE2003/000977
Other languages
French (fr)
Inventor
Per-Eric Stridsman
Original Assignee
Swedwood International 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.)
Filing date
Publication date
Application filed by Swedwood International Ab filed Critical Swedwood International Ab
Priority to DE60329686T priority Critical patent/DE60329686D1/en
Priority to AT03733730T priority patent/ATE445747T1/en
Priority to DK03733730T priority patent/DK1532326T3/en
Priority to AU2003239014A priority patent/AU2003239014A1/en
Priority to EP03733730A priority patent/EP1532326B1/en
Priority to UAA200500485A priority patent/UA80432C2/en
Publication of WO2004001153A1 publication Critical patent/WO2004001153A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
    • E04C3/122—Laminated
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/12—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of solid wood

Definitions

  • the present invention relates to a panel having a wooden body, which is formed of board-shaped building elements arranged side by side, parallel to each other. Summary of the Invention
  • the object of the present invention is to provide a panel having a wooden body, which comprises board-shaped building elements, which are relatively light and dimen- sionally stable and which allow the use of sawn boards, said boards being in turn such as to allow an improved sawing yield to be obtained when sawing a log and, in some cases, allow logs of smaller diameter, which would otherwise serve as pulpwood, to be used for sawing suitable boards .
  • a board which is of the type stated by way of introduction and which is characterised in that the wooden body comprises at least two board-shaped building elements, each of which is made of two boards sawn from a log and having at least partially remaining wane portions, said boards being placed on top of each other and glued together, their narrow faces bearing against one another.
  • Fig. 1A is an end view showing the sawing yield when a log is sawn in conventional manner.
  • Fig. IB corresponds to Fig. 1A but shows the sawing yield when the log is sawn for production of boards to be used in a building element intended for a wooden body in a panel according to the invention.
  • Fig . 2 is an end view showing two boards obtained by sawing the log as indicated in Fig. IB.
  • Fig. 3 is an end view showing a building element made of the two boards in Fig. 2.
  • Fig. 4 is an end view showing one example of an inventive panel which has a body consisting of two building elements according to Fig. 3. Description of a Preferred Embodiment
  • Fig. 1A shows a log 1 sawn through in the longitu- dinal direction.
  • Four boards 2a-2d are sawn from the log 1 using five longitudinal saw cuts sl-s5.
  • the wane portions 3a-3d of these boards 2a-2d are removed by the boards being cut clean by means of edgers, the boards being sawn along the saw cuts indi- cated by 4a-4d in.Fig. 1A, whereby the wane portions are removed.
  • Fig. IB shows the same log 1 as in Fig. 1A, the log being sawn through in the same manner in the longitudinal direction for the purpose of making boards 2a-2d.
  • the sawing illustrated in Fig. IB differs from the one shown in Fig . 1A only in that sawing intended to remove the wane portions 3a-3d is not carried out. This results in a greater sawing yield when sawing according to Fig. IB than when sawing according to Fig. 1A.
  • Figs 2 and 3 show how a board-shaped building element 5 is made by means of two boards 2a and 2d, which are made using the procedure illustrated in Fig. IB, i.e. which have remaining wane portions respectively 3a and 3d.
  • These boards 2a and 2d thus have a wide face 6a and 6d, respectively, and a narrow face 7a and 7d, respectively.
  • the latter faces 7a and 7d are planed, after which glue is applied to at least one of them.
  • the boards 2a and 2d are then placed on top of each other, their narrow faces 7a and 7d facing one another, to obtain the board-shaped building element 5 consisting of two boards 2a and 2d that are glued together.
  • the faces 6a and 6d of the building element 5 can be planed and its edge sides profiled to obtain the desired profile. It is particularly desirable for this profile to have a planed portion 8a, 8d, which extends perpendicularly to the two faces 6a and 6d of the building element 5 (see Fig. 4) .
  • Said profile can also have a planed portion (not shown) which extends obliquely relative to the two faces 6a and 6d.
  • the building element 5 is lighter than a corre- sponding building element of the same thickness and width, which is made of two boards produced by sawing according to Fig. 1A. This is because the building element 5 has at its lateral edges recesses 9 defined by the wane portions 3a and 3d. Furthermore, the building element 5 is highly dimensionally stable owing to the narrow faces 7a and 7d of the boards being joined together, which means that the arched annual ring portions 10a and lOd in the two boards are curved in opposite directions. Thus, when moisture changes occur in the boards 2a and 2d they aim at moving (warping) in opposite directions, so that the tendencies towards movement cancel each other out .
  • the panel 11 shown in Fig. 4 has a body, which is formed of two building elements 5 according to Fig. 3 arranged side by side, parallel to each other.
  • the building elements 5 are arranged next to each other, their planed portions 8a and 8d bearing against one another.
  • An upper surface layer 12 and a lower surface layer 13 are attached, preferably by gluing, to the two building elements 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Panels For Use In Building Construction (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

A panel (11) has a wooden body, which is formed of board-shaped building elements (5) arranged side by side, parallel to each other. The wooden body comprises at least two board-shaped building elements (5), each of which is mad eof two boards (2a, 2d) sawn from a log and having at least partially remaining wane portions (3a, 3d). The boards (2a, 2d) are placed on top of each other and glued together, their narrow faces bearing against one another.

Description

A PANEL HAVING A WOODEN BODY M7ADE BY BOARD-SHAPED
BUILDING ELEMENTS
Field of the Invention
The present invention relates to a panel having a wooden body, which is formed of board-shaped building elements arranged side by side, parallel to each other. Summary of the Invention
The object of the present invention is to provide a panel having a wooden body, which comprises board-shaped building elements, which are relatively light and dimen- sionally stable and which allow the use of sawn boards, said boards being in turn such as to allow an improved sawing yield to be obtained when sawing a log and, in some cases, allow logs of smaller diameter, which would otherwise serve as pulpwood, to be used for sawing suitable boards . According to the invention, this object is achieved by a board, which is of the type stated by way of introduction and which is characterised in that the wooden body comprises at least two board-shaped building elements, each of which is made of two boards sawn from a log and having at least partially remaining wane portions, said boards being placed on top of each other and glued together, their narrow faces bearing against one another. Brief Description of the Drawings The invention will now be described in more detail with reference to the accompanying drawings .
Fig. 1A is an end view showing the sawing yield when a log is sawn in conventional manner.
Fig. IB corresponds to Fig. 1A but shows the sawing yield when the log is sawn for production of boards to be used in a building element intended for a wooden body in a panel according to the invention. Fig . 2 is an end view showing two boards obtained by sawing the log as indicated in Fig. IB.
Fig. 3 is an end view showing a building element made of the two boards in Fig. 2. Fig . 4 is an end view showing one example of an inventive panel which has a body consisting of two building elements according to Fig. 3. Description of a Preferred Embodiment
Fig. 1A shows a log 1 sawn through in the longitu- dinal direction. Four boards 2a-2d are sawn from the log 1 using five longitudinal saw cuts sl-s5. In conventional procedures, the wane portions 3a-3d of these boards 2a-2d are removed by the boards being cut clean by means of edgers, the boards being sawn along the saw cuts indi- cated by 4a-4d in.Fig. 1A, whereby the wane portions are removed.
Fig. IB shows the same log 1 as in Fig. 1A, the log being sawn through in the same manner in the longitudinal direction for the purpose of making boards 2a-2d. The sawing illustrated in Fig. IB differs from the one shown in Fig . 1A only in that sawing intended to remove the wane portions 3a-3d is not carried out. This results in a greater sawing yield when sawing according to Fig. IB than when sawing according to Fig. 1A. Figs 2 and 3 show how a board-shaped building element 5 is made by means of two boards 2a and 2d, which are made using the procedure illustrated in Fig. IB, i.e. which have remaining wane portions respectively 3a and 3d. These boards 2a and 2d thus have a wide face 6a and 6d, respectively, and a narrow face 7a and 7d, respectively. The latter faces 7a and 7d are planed, after which glue is applied to at least one of them. The boards 2a and 2d are then placed on top of each other, their narrow faces 7a and 7d facing one another, to obtain the board-shaped building element 5 consisting of two boards 2a and 2d that are glued together. If needed or desired the faces 6a and 6d of the building element 5 can be planed and its edge sides profiled to obtain the desired profile. It is particularly desirable for this profile to have a planed portion 8a, 8d, which extends perpendicularly to the two faces 6a and 6d of the building element 5 (see Fig. 4) . Said profile can also have a planed portion (not shown) which extends obliquely relative to the two faces 6a and 6d.
The building element 5 is lighter than a corre- sponding building element of the same thickness and width, which is made of two boards produced by sawing according to Fig. 1A. This is because the building element 5 has at its lateral edges recesses 9 defined by the wane portions 3a and 3d. Furthermore, the building element 5 is highly dimensionally stable owing to the narrow faces 7a and 7d of the boards being joined together, which means that the arched annual ring portions 10a and lOd in the two boards are curved in opposite directions. Thus, when moisture changes occur in the boards 2a and 2d they aim at moving (warping) in opposite directions, so that the tendencies towards movement cancel each other out .
The panel 11 shown in Fig. 4 has a body, which is formed of two building elements 5 according to Fig. 3 arranged side by side, parallel to each other. The building elements 5 are arranged next to each other, their planed portions 8a and 8d bearing against one another. An upper surface layer 12 and a lower surface layer 13 are attached, preferably by gluing, to the two building elements 5.

Claims

CLAIM
A panel having a wooden body, which is formed of board-shaped building elements (5) arranged side by side, parallel to each other, c ha ra c t e r i s ed in that the wooden body comprises at least two board-shaped building elements (5) , each of which is made of two boards (2a, 2d) sawn from a log (1) and having at least partially remaining wane portions (3a, 3d) , which boards are placed on top of each other and glued together, their narrow faces (7a, 7d) bearing against one another.
PCT/SE2003/000977 2002-06-19 2003-06-12 A panel having a wooden body made by board-shaped building elements WO2004001153A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE60329686T DE60329686D1 (en) 2002-06-19 2003-06-12 TABLE WITH WOODEN BODY MANUFACTURED FROM TABLEFUL COMPONENTS
AT03733730T ATE445747T1 (en) 2002-06-19 2003-06-12 PANEL WITH A WOODEN BODY MADE FROM TABLE-SHAPED COMPONENTS
DK03733730T DK1532326T3 (en) 2002-06-19 2003-06-12 Panel with a body of wood made of board-shaped building elements
AU2003239014A AU2003239014A1 (en) 2002-06-19 2003-06-12 A panel having a wooden body made by board-shaped building elements
EP03733730A EP1532326B1 (en) 2002-06-19 2003-06-12 A panel having a wooden body made by board-shaped building elements
UAA200500485A UA80432C2 (en) 2002-06-19 2003-12-06 Panel having a wooden body made by board-shaped building elements

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0201868A SE523792C2 (en) 2002-06-19 2002-06-19 Slab with a wooden frame of board-shaped building elements
SE0201868-7 2002-06-19

Publications (1)

Publication Number Publication Date
WO2004001153A1 true WO2004001153A1 (en) 2003-12-31

Family

ID=20288229

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/000977 WO2004001153A1 (en) 2002-06-19 2003-06-12 A panel having a wooden body made by board-shaped building elements

Country Status (9)

Country Link
EP (1) EP1532326B1 (en)
AT (1) ATE445747T1 (en)
AU (1) AU2003239014A1 (en)
DE (1) DE60329686D1 (en)
DK (1) DK1532326T3 (en)
RU (1) RU2317382C2 (en)
SE (1) SE523792C2 (en)
UA (1) UA80432C2 (en)
WO (1) WO2004001153A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3100552A1 (en) * 2019-09-11 2021-03-12 Paul-Henri Mathis Construction element and method of producing at least one construction element from a wooden log

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105113702A (en) * 2015-08-11 2015-12-02 彭志军 Pure log spliced board and aluminum-wood composited spliced board device using same
RU168168U1 (en) * 2015-10-28 2017-01-23 федеральное государственное бюджетное образовательное учреждение высшего образования "Костромской государственный университет" (КГУ) WOODEN TWO-WAY GLUED BEAM

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115609A (en) * 1991-07-03 1992-05-26 Peter Sing Method of converting logs and resultant product
US5618371A (en) * 1995-06-21 1997-04-08 Sing; Peter Method of producing laminated wood beams
WO1998015396A1 (en) * 1996-10-07 1998-04-16 Peter Sing Laminated structural wood products and method
US6446412B2 (en) * 2000-01-27 2002-09-10 Mathis Tech Inc. Glulam wood beams and method of making same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5115609A (en) * 1991-07-03 1992-05-26 Peter Sing Method of converting logs and resultant product
US5618371A (en) * 1995-06-21 1997-04-08 Sing; Peter Method of producing laminated wood beams
WO1998015396A1 (en) * 1996-10-07 1998-04-16 Peter Sing Laminated structural wood products and method
US6446412B2 (en) * 2000-01-27 2002-09-10 Mathis Tech Inc. Glulam wood beams and method of making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3100552A1 (en) * 2019-09-11 2021-03-12 Paul-Henri Mathis Construction element and method of producing at least one construction element from a wooden log

Also Published As

Publication number Publication date
EP1532326B1 (en) 2009-10-14
AU2003239014A1 (en) 2004-01-06
EP1532326A1 (en) 2005-05-25
DE60329686D1 (en) 2009-11-26
SE523792C2 (en) 2004-05-18
SE0201868D0 (en) 2002-06-19
UA80432C2 (en) 2007-09-25
RU2317382C2 (en) 2008-02-20
DK1532326T3 (en) 2010-01-04
RU2005101092A (en) 2005-06-10
ATE445747T1 (en) 2009-10-15
SE0201868L (en) 2003-12-20

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