EP0907503B1 - Parallel randomly stacked, stranded, bamboo beams - Google Patents
Parallel randomly stacked, stranded, bamboo beams Download PDFInfo
- Publication number
- EP0907503B1 EP0907503B1 EP96921801A EP96921801A EP0907503B1 EP 0907503 B1 EP0907503 B1 EP 0907503B1 EP 96921801 A EP96921801 A EP 96921801A EP 96921801 A EP96921801 A EP 96921801A EP 0907503 B1 EP0907503 B1 EP 0907503B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bamboo
- segments
- width
- length
- bamboo beam
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/04—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
Definitions
- the present invention relates to parallel randomly stacked, stranded, bamboo beams.
- Wood beams are generally cut from naturally grown trees. However, trees are limited in supply due to the long time necessary for a tree to reach maturity. Also, the supply of natural wood is limited by the deforestation that is now occurring in many parts of the world.
- One approach to this problem has been to resort to producing composite lumber formed out of wood products, lignocellulosic materials or reconsolidated wood products, to make lumber products.
- producing composite lumber involves splitting, mashing, gluing and manufacturing artificial wood from wood products to manufacture lumber products such as plywood, particle boards and chip boards.
- US Patent No. 4,810,551 shows a plywood made from sheets of bamboo comprising strands of bamboo glued together side by side to make bamboo sheets of laminated strips where each sheet of bamboo runs perpendicular to the one below or above it, creating the conventional plywood cross grain layered design. It also claims a layered bamboo board made from sheets of bamboo stacked with the grain running in the same direction and glued together.
- the beam must be composed of a material which is readily available and easily replenished, and which is not a threat to the environment.
- a bamboo beam comprising, in combination: a plurality of bamboo segments, each of said bamboo segments having a length, width and a longitudinal axis, the longitudinal axes of said segments being generally parallel to one another, said segments having a random horizontal and vertical orientation about the length and width of each of said segments, respectively, said segments also having a random rotational orientation with regard to the longitudinal axis of each said segments and said segments being compressed and bonded together to form a single integral structure.
- the bamboo beam may further comprise wood fillers between said bamboo segments, wherein said wood fillers eliminate gaps within said bamboo beam created by said random horizontal, vertical and rotational orientation of said bamboo segments.
- Said bamboo segments may have a width from 6.35 to 19.05 mm (1 ⁇ 4 to 3 ⁇ 4 inch), a majority of said bamboo segments having a length from 1.52 to 6.10 m (5 to 20 feet).
- Said bamboo segments may be longitudinal segments of whole bamboo stocks.
- the bamboo beam may have a length, width and height, the longitudinal axes of said segments being generally parallel with the length of the bamboo beam and said segments being otherwise randomly oriented with respect to each other about the width and height of the bamboo beam.
- a bamboo beam is generally designated as 10 and has a core 1 and an outer surface 2.
- the core 1 consists of bamboo segments 3 which have been bonded and compressed together to form an adhesive structure. As shown more clearly in Fig. 2, the core 1 may contain gaps due to the cross-sectional shapes of the bamboo segments 3 and the randomness of the stacking of the segments 3.
- the outer surface 2 is prepared by milling the adhesive structure to a desired dimension.
- the beam 10 is shown as having four side surfaces and two end surfaces, defining a conventional beam dimension.
- bamboo stalks are split open and dried in segments 3 ranging from 6.3 5 to 19.05 mm (1 ⁇ 4 to 3 ⁇ 4 inch) in width to approximately 1.52 to 6.10 m (5 to 20 feet) in length.
- the segments 3 can be as short as 1.52 m (5 feet) or less in small percentages.
- An adhesive suitable for bamboo is evenly applied to the dried segments 3 and the segments 3 are aligned in parallel fashion and stacked randomly. The stack is then fused under pressure until it results in a cohesive structure. When the stack has dried and is cohesive, it is milled into the desired beam dimensions.
- suitable wood fillers 4 can be introduced into the stack before compression to eliminate any gaps which may exist in the core 1 of the bamboo beam 10.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
Description
Claims (5)
- A bamboo beam (10) comprising, in combination: a plurality of bamboo segments (3), each of said bamboo segments having a length, width and a longitudinal axis, the longitudinal axes of said segments (3) being generally parallel to one another, said segments (3) having a random horizontal and vertical orientation about the length and width of each of said segments (3), respectively, said segments (3) also having a random rotational orientation with regard to the longitudinal axis of each said segments and said segments (3) being compressed and bonded together to form a single integral structure.
- A bamboo beam (10) according to claim 1, further comprising wood fillers (4) between said bamboo segments (3), wherein said wood fillers eliminate gaps within said bamboo beam (10) created by said random horizontal, vertical and rotational orientation of said bamboo segments (3).
- A bamboo beam according to claim 1 or 2, wherein said bamboo segments (3) have a width from 6.35 to 19.05 mm (¼ to ¾ inch), a majority of said bamboo segments (3) having a length from 1.52 to 6.10 m (5 to 20 feet).
- A bamboo beam (10) according to any preceding claim, wherein said bamboo segments (3) are longitudinal segments of whole bamboo stocks.
- A bamboo beam (10) according to any preceding claim, having a length, width and height and wherein the longitudinal axes of said segments (3) are generally parallel with the length of the bamboo beam (10) and said segments (3) are otherwise randomly oriented with respect to each other about the width and height of the bamboo beam (10).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT96921801T PT907503E (en) | 1996-06-26 | 1996-06-26 | BAMBOO BULLS STACKED AND TAILED PARALLELALLY TO STEEL |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1996/011030 WO1997049547A1 (en) | 1996-06-26 | 1996-06-26 | Parallel randomly stacked, stranded, bamboo beams |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0907503A1 EP0907503A1 (en) | 1999-04-14 |
EP0907503A4 EP0907503A4 (en) | 1999-05-26 |
EP0907503B1 true EP0907503B1 (en) | 2002-08-28 |
Family
ID=22255394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96921801A Expired - Lifetime EP0907503B1 (en) | 1996-06-26 | 1996-06-26 | Parallel randomly stacked, stranded, bamboo beams |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0907503B1 (en) |
AT (1) | ATE222846T1 (en) |
AU (1) | AU6292296A (en) |
BR (1) | BR9612688A (en) |
DE (1) | DE69623346T2 (en) |
ES (1) | ES2184877T3 (en) |
WO (1) | WO1997049547A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106592305A (en) * | 2016-12-23 | 2017-04-26 | 浙江农林大学 | Preparation method for bamboo fibre filaments |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2157170B1 (en) * | 1999-10-26 | 2002-02-01 | Tabsal Composites De Madera S | PROCEDURE FOR THE PRODUCTION OF AGLOMERATED WOODEN BOARDS. |
US8309221B2 (en) | 2007-10-01 | 2012-11-13 | Jay Plaehn | Reinforced foam panel |
FR2967088B1 (en) * | 2010-11-04 | 2013-06-21 | Lineazen | METHOD FOR MANUFACTURING INTEGRATED MULTIFUNCTIONAL BUILDING SYSTEMS AND ASSOCIATED BUILDING SYSTEMS FROM BAMBOO BANDS, METHOD FOR MANUFACTURING BAMBOO BANDS. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2256946A (en) * | 1939-05-27 | 1941-09-23 | Hill Howard | Bowstave or the like |
ZA772210B (en) * | 1976-04-15 | 1978-03-29 | Commw Scient Ind Res Org | Reconsolidated wood product |
US4255477A (en) * | 1978-10-24 | 1981-03-10 | Holman John A | Artificial board of lumber |
US4508772A (en) * | 1983-11-01 | 1985-04-02 | Macmillan Bloedel Limited | Pressed composite assembly and method |
US4810551A (en) * | 1985-12-16 | 1989-03-07 | Chu Alan C | Bamboo board |
US5543197A (en) * | 1994-02-18 | 1996-08-06 | Plaehn; Jay | Parallel randomly stacked, stranded, laminated bamboo boards and beams |
EP0798089A1 (en) * | 1996-03-27 | 1997-10-01 | Forestry And Forest Products Research Institute | Construction material made of woody material and mortar, manufacturing method and apparatus thereof |
-
1996
- 1996-06-26 AT AT96921801T patent/ATE222846T1/en active
- 1996-06-26 AU AU62922/96A patent/AU6292296A/en not_active Abandoned
- 1996-06-26 WO PCT/US1996/011030 patent/WO1997049547A1/en active IP Right Grant
- 1996-06-26 ES ES96921801T patent/ES2184877T3/en not_active Expired - Lifetime
- 1996-06-26 DE DE69623346T patent/DE69623346T2/en not_active Expired - Lifetime
- 1996-06-26 BR BR9612688A patent/BR9612688A/en not_active IP Right Cessation
- 1996-06-26 EP EP96921801A patent/EP0907503B1/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106592305A (en) * | 2016-12-23 | 2017-04-26 | 浙江农林大学 | Preparation method for bamboo fibre filaments |
CN106592305B (en) * | 2016-12-23 | 2018-04-13 | 浙江农林大学 | A kind of preparation method of bamboo filament |
Also Published As
Publication number | Publication date |
---|---|
DE69623346T2 (en) | 2003-05-15 |
EP0907503A4 (en) | 1999-05-26 |
DE69623346D1 (en) | 2002-10-02 |
ES2184877T3 (en) | 2003-04-16 |
WO1997049547A1 (en) | 1997-12-31 |
ATE222846T1 (en) | 2002-09-15 |
BR9612688A (en) | 1999-08-24 |
EP0907503A1 (en) | 1999-04-14 |
AU6292296A (en) | 1998-01-14 |
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