EP0907503B1 - Poutre faite de brins de bambou empiles de maniere parallele et aleatoire - Google Patents

Poutre faite de brins de bambou empiles de maniere parallele et aleatoire Download PDF

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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
Application number
EP96921801A
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German (de)
English (en)
Other versions
EP0907503A4 (fr
EP0907503A1 (fr
Inventor
Jay Plaehn
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.)
A & A PUCHY FAMILY TRUST
Original Assignee
B3 TECHNOLOGIES Inc
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Filing date
Publication date
Application filed by B3 TECHNOLOGIES Inc filed Critical B3 TECHNOLOGIES Inc
Priority to PT96921801T priority Critical patent/PT907503E/pt
Publication of EP0907503A1 publication Critical patent/EP0907503A1/fr
Publication of EP0907503A4 publication Critical patent/EP0907503A4/fr
Application granted granted Critical
Publication of EP0907503B1 publication Critical patent/EP0907503B1/fr
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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)

Claims (5)

  1. Poutre en bambou (10) comprenant, en combinaison : une pluralité de segments en bambou (3); chacun desdits segments en bambou ayant une longueur, une largeur et un axe longitudinal, les axes longitudinaux desdits segments (3) étant généralement parallèles les uns aux autres, lesdits segments (3) ayant une orientation horizontale et verticale aléatoire autour de la longueur et de la largeur de chacun desdits segments (3), respectivement, lesdits segments (3) ayant aussi une orientation rotationnelle aléatoire par rapport à l'axe longitudinal de chacun desdits segments et lesdits segments (3) étant comprimés et collés ensemble pour former une structure intégrale unique.
  2. Poutre en bambou (10) selon la revendication 1, comprenant en outre des charges en bois (4) entre lesdits segments en bambou (3), lesdites charges en bois éliminant les espaces dans ladite poutre en bambou (10) créés par ladite orientation aléatoire horizontale, verticale et rotationnelle desdits segments en bambou (3).
  3. Poutre en bambou selon la revendication 1 ou 2, dans laquelle lesdits segments en bambou (3) ont une largeur allant de 6,35 à 19,05 mm (1/4 à 3/4 de pouce), une majorité desdits segments en bambou (3) ayant une longueur de 1,52 à 6,10 m (5 à 20 pieds).
  4. Poutre en bambou (10) selon l'une quelconque des revendications précédentes, dans laquelle lesdits segments en bambou (3) sont des segments longitudinaux de matériaux de bambou entiers.
  5. Poutre en bambou (10) selon l'une quelconque des revendications précédentes, ayant une longueur, une largeur et une hauteur et dans laquelle les axes longitudinaux desdits segments (3) sont généralement parallèles à la longueur de la poutre en bambou (10) et lesdits segments (3) sont autrement orientés de manière aléatoire les uns par rapport aux autres autour de la largeur et de la hauteur de la poutre en bambou (10).
EP96921801A 1996-06-26 1996-06-26 Poutre faite de brins de bambou empiles de maniere parallele et aleatoire Expired - Lifetime EP0907503B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PT96921801T PT907503E (pt) 1996-06-26 1996-06-26 Toros de bambu empilhados e atados paralelamente ao acaso

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1996/011030 WO1997049547A1 (fr) 1996-06-26 1996-06-26 Poutre faite de brins de bambou empiles de maniere parallele et aleatoire

Publications (3)

Publication Number Publication Date
EP0907503A1 EP0907503A1 (fr) 1999-04-14
EP0907503A4 EP0907503A4 (fr) 1999-05-26
EP0907503B1 true EP0907503B1 (fr) 2002-08-28

Family

ID=22255394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96921801A Expired - Lifetime EP0907503B1 (fr) 1996-06-26 1996-06-26 Poutre faite de brins de bambou empiles de maniere parallele et aleatoire

Country Status (7)

Country Link
EP (1) EP0907503B1 (fr)
AT (1) ATE222846T1 (fr)
AU (1) AU6292296A (fr)
BR (1) BR9612688A (fr)
DE (1) DE69623346T2 (fr)
ES (1) ES2184877T3 (fr)
WO (1) WO1997049547A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106592305A (zh) * 2016-12-23 2017-04-26 浙江农林大学 一种竹纤维长丝的制备方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2157170B1 (es) * 1999-10-26 2002-02-01 Tabsal Composites De Madera S Procedimiento para la produccion de tableros aglomerados de madera.
US8309221B2 (en) 2007-10-01 2012-11-13 Jay Plaehn Reinforced foam panel
FR2967088B1 (fr) * 2010-11-04 2013-06-21 Lineazen Procede de fabrication de systemes constructifs integres multifonction et systemes constructifs associes a partir de bandes de bambou, procede de fabrication de bandes de bambou.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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 (fr) * 1996-03-27 1997-10-01 Forestry And Forest Products Research Institute Matériau de construction de mortier et de bois, et procédé et dispositif pour son obtention et son utilisation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106592305A (zh) * 2016-12-23 2017-04-26 浙江农林大学 一种竹纤维长丝的制备方法
CN106592305B (zh) * 2016-12-23 2018-04-13 浙江农林大学 一种竹纤维长丝的制备方法

Also Published As

Publication number Publication date
DE69623346D1 (de) 2002-10-02
EP0907503A4 (fr) 1999-05-26
BR9612688A (pt) 1999-08-24
DE69623346T2 (de) 2003-05-15
ES2184877T3 (es) 2003-04-16
WO1997049547A1 (fr) 1997-12-31
ATE222846T1 (de) 2002-09-15
EP0907503A1 (fr) 1999-04-14
AU6292296A (en) 1998-01-14

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