EP0907503A1 - Parallel randomly stacked, stranded, bamboo beams - Google Patents

Parallel randomly stacked, stranded, bamboo beams

Info

Publication number
EP0907503A1
EP0907503A1 EP96921801A EP96921801A EP0907503A1 EP 0907503 A1 EP0907503 A1 EP 0907503A1 EP 96921801 A EP96921801 A EP 96921801A EP 96921801 A EP96921801 A EP 96921801A EP 0907503 A1 EP0907503 A1 EP 0907503A1
Authority
EP
European Patent Office
Prior art keywords
bamboo
segments
width
length
longitudinal
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.)
Granted
Application number
EP96921801A
Other languages
German (de)
French (fr)
Other versions
EP0907503B1 (en
EP0907503A4 (en
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
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 B3 TECHNOLOGIES Inc filed Critical B3 TECHNOLOGIES Inc
Priority to PT96921801T priority Critical patent/PT907503E/en
Publication of EP0907503A1 publication Critical patent/EP0907503A1/en
Publication of EP0907503A4 publication Critical patent/EP0907503A4/en
Application granted granted Critical
Publication of EP0907503B1 publication Critical patent/EP0907503B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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 an artificial wood beam substitute, more specifically to the use of bamboo as a raw material to be used as the primary substance of the artificial wood, in which bamboo strands are laminated in random stacked parallel strips and are fused under pressure with adhesives added to create an artificial wood beam with qualities similar to that of naturally grown lumber.
  • 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.
  • SUBSTIim SHEET (RULE ⁇ S) Therefore, there is a need for a natural wood beam substitute which is less expensive and at least as equally strong as natural wood beams.
  • the beam must be composed of a material which is readily available and easily replenished, and which is not a threat to the environment .
  • the bamboo would be harvested, split open, and dried in long strips ranging from 1/4 to 3/4 inch in width to approximately 5 to 20 feet in length.
  • the strands can be as short as 5 feet or less in small percentages.
  • the dried strips would have adhesive applied evenly to them and they would be aligned in parallel fashion and stacked at random length and fused under pressure.
  • FIG. 1 is a front view of the composite bamboo beam
  • FIG. 2 is an exploded view of the corner of the composite bamboo beams to show more clearly the end grain and the flat surface of the beam which is consistent on all sides and ends of the composite bamboo beams;
  • FIG. 3 is a side view of the composite bamboo beam
  • FIG. 4 is a top view of the composite bamboo beam.
  • the bamboo beam is generally designated as 10 having 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.
  • the core 1 may contain gaps 6 due to the cross-sectional shape 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 4 and two end surfaces 5, defining the conventional beam dimension.
  • bamboo stalks are split open and dried in segments 3 ranging from 1/4 to 3/4 inch in width to approximately 5 to 20 feet in length.
  • the segments 3 can be as short as 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 7 can be introduced into the stack before compression to eliminate any gaps 8 which may exist in the core 1 of the bamboo beam 10.

Abstract

A composite bamboo beam for use as a substitute for natural wood beams. Segments of bamboo stalk, either split or whole, are longitudinally aligned and randomly stacked. The bamboo segments are compressed and bonded together to form a cohesive bamboo composite structure from which beams of the desired dimension may be cut.

Description

7/49547 PC17US96/11030
PARALLEL RANDOMLY STACKED, STRANDED, BAMBOO BEAMS
The present invention relates to an artificial wood beam substitute, more specifically to the use of bamboo as a raw material to be used as the primary substance of the artificial wood, in which bamboo strands are laminated in random stacked parallel strips and are fused under pressure with adhesives added to create an artificial wood beam with qualities similar to that of naturally grown lumber.
BACKGROUND OF INVENTION
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. Generally, 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. Additionally, U.S. Patent No. 4,810,551 filed
March 7, 1989, shows a plywood made from sheets of bamboo comprised of 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.
SUBSTIim SHEET (RULEΣS) Therefore, there is a need for a natural wood beam substitute which is less expensive and at least as equally strong as natural wood beams. The beam must be composed of a material which is readily available and easily replenished, and which is not a threat to the environment .
SUMMARY OF INVENTION Accordingly, it is an object of this invention is to produce a product that utilizes for strength and rigidity the exclusive use of bamboo.
It is another object to provide a beam which can be manufactured to virtually any dimension.
Finally, it is an object of this invention to provide a natural wood beam substitute which is less expensively produced but similar in appearance and superior in properties than natural wood beams.
In accordance with the present invention, all these objects, as well as others not herein specifically identified, are generally achieved by the present randomly stacked, stranded bamboo beam.
More specifically, the bamboo would be harvested, split open, and dried in long strips ranging from 1/4 to 3/4 inch in width to approximately 5 to 20 feet in length. The strands can be as short as 5 feet or less in small percentages. The dried strips would have adhesive applied evenly to them and they would be aligned in parallel fashion and stacked at random length and fused under pressure.
BRIEF DESCRIPTION OF THE DRAWINGS Further objects of the invention, taken together with additional features contributing thereto and advantages occurring therefrom, will be apparent from the following description of the invention when read in conjunction with the accompanying drawings, wherein:
SUBSnillTESHEEI (1BJIE26) FIG. 1 is a front view of the composite bamboo beam;
FIG. 2 is an exploded view of the corner of the composite bamboo beams to show more clearly the end grain and the flat surface of the beam which is consistent on all sides and ends of the composite bamboo beams;
FIG. 3 is a side view of the composite bamboo beam; and
FIG. 4 is a top view of the composite bamboo beam.
DETAILED DESCRIPTION OF THE INVENTION
Referring to Fig. 1, the bamboo beam is generally designated as 10 having 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 in Fig. 1, the core 1 may contain gaps 6 due to the cross-sectional shape 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. In Fig. 1, the beam 10 is shown as having four side surfaces 4 and two end surfaces 5, defining the conventional beam dimension. In the preferred embodiment, bamboo stalks are split open and dried in segments 3 ranging from 1/4 to 3/4 inch in width to approximately 5 to 20 feet in length. The segments 3 can be as short as 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.
SUBSTITUTE SHEET (ROLE 26) It has been discovered that the resulting beams, regardless of variations in dimension, exhibit a uniform structural consistency which is highly desirable in lumber products. It was also discovered that the bamboo beam of this invention produced a beam which is lighter and oftentimes stronger than conventional construction grade lumber.
Additionally, suitable wood fillers 7 can be introduced into the stack before compression to eliminate any gaps 8 which may exist in the core 1 of the bamboo beam 10.
SUEOTTUTE SHEET (RULE 26)

Claims

1. A bamboo beam comprising, in combination: a plurality of bamboo segments, each of said bamboo segments having a length, width and a longitudinal axis, said 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 said longitudinal axis of each said segments, and said segments compressed and bonded together to form a single integral structure.
2. The bamboo beam of claim 1 further comprising 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.
3. The bamboo beam of claim 1 wherein said bamboo segments have a width from 1/4 to 3/4 inches and a substantial number of said bamboo segments having a length from 5 to 20 feet.
4. The bamboo beam of claim 1 wherein said bamboo segments are longitudinal segments of whole bamboo stocks.
5. A bamboo beam comprising, in combination: a plurality of bamboo segments, each of said bamboo segments having a length, width and a longitudinal axis, said longitudinal axes of said segments being generally parallel to one another, said segments having a random horizontal, vertical and rotational orientation with respect to each other, said bamboo segments having widths from 1/4 to 3/4 inches and a substantial number of said bamboo segments having lengths of from 5 to 20 feet, said bamboo segments compressed and bonded together to form a single integral structure; and wood fillers located 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 beams.
6. The bamboo beam of claim 5 wherein said bamboo segments are longitudinal segments of whole bamboo stocks.
7. a bamboo beam having a length, width and height, said bamboo beam comprising, in combination: a plurality of bamboo segments, each of said bamboo segments having a longitudinal axis, said axes being generally parallel with the length of the bamboo beam, and said segments otherwise randomly oriented with respect to each other about the width and height of the bamboo beam, said segments also randomly oriented rotationally about said longitudinal axis of each of said segments.
8. The bamboo beam of claim 7 further comprising wood fillers between said bamboo segments, wherein said wood fillers eliminate gaps within said bamboo beam.
9. The bamboo beam of claim 7 wherein said bamboo segments have a width from 1/4 to 3/4 inches and a substantial number of said segments having a length from 5 to 20 feet.
10. The bamboo beam of claim 7 wherein said bamboo segments are longitudinal segments of whole bamboo stocks.
SUKΓΓΓUTE SHEET (RULE 26)
EP96921801A 1996-06-26 1996-06-26 Parallel randomly stacked, stranded, bamboo beams Expired - Lifetime EP0907503B1 (en)

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 true EP0907503A1 (en) 1999-04-14
EP0907503A4 EP0907503A4 (en) 1999-05-26
EP0907503B1 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)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
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.
CN106592305B (en) * 2016-12-23 2018-04-13 浙江农林大学 A kind of preparation method of bamboo filament

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232067A (en) * 1976-04-15 1980-11-04 Commonwealth Scientific And Industrial Research Organization Reconsolidated wood product
US4508772A (en) * 1983-11-01 1985-04-02 Macmillan Bloedel Limited Pressed composite assembly and method
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

Family Cites Families (3)

* 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
US4255477A (en) * 1978-10-24 1981-03-10 Holman John A Artificial board of lumber
US4810551A (en) * 1985-12-16 1989-03-07 Chu Alan C Bamboo board

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232067A (en) * 1976-04-15 1980-11-04 Commonwealth Scientific And Industrial Research Organization Reconsolidated wood product
US4508772A (en) * 1983-11-01 1985-04-02 Macmillan Bloedel Limited Pressed composite assembly and method
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9749547A1 *

Also Published As

Publication number Publication date
EP0907503B1 (en) 2002-08-28
AU6292296A (en) 1998-01-14
EP0907503A4 (en) 1999-05-26
DE69623346T2 (en) 2003-05-15
ATE222846T1 (en) 2002-09-15
BR9612688A (en) 1999-08-24
WO1997049547A1 (en) 1997-12-31
DE69623346D1 (en) 2002-10-02
ES2184877T3 (en) 2003-04-16

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