EP1566500A1 - Fräsverfahren zur Herstellung von natürlichen, verjüngenden Baumstämmen für Blockhäuser - Google Patents

Fräsverfahren zur Herstellung von natürlichen, verjüngenden Baumstämmen für Blockhäuser Download PDF

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Publication number
EP1566500A1
EP1566500A1 EP05102362A EP05102362A EP1566500A1 EP 1566500 A1 EP1566500 A1 EP 1566500A1 EP 05102362 A EP05102362 A EP 05102362A EP 05102362 A EP05102362 A EP 05102362A EP 1566500 A1 EP1566500 A1 EP 1566500A1
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EP
European Patent Office
Prior art keywords
logs
log
curvature
round
inches
Prior art date
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Application number
EP05102362A
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English (en)
French (fr)
Inventor
Robert Charles Littler
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1566500A1 publication Critical patent/EP1566500A1/de
Withdrawn legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/70—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood
    • E04B2/701—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood with integrated supporting and obturation function
    • E04B2/702—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of wood with integrated supporting and obturation function with longitudinal horizontal elements

Definitions

  • This invention pertains to the construction of log walls and utilizes natural tapered whole logs which are fit together and laid horizontally on top of each other.
  • this type of wall construction has always been done by hand, using a chainsaw.
  • a lateral notch also known as a groove or cope, is cut with a chainsaw from the underside or belly of each log, and runs the full length of each wall log.
  • This is an extremely heavy, labour intensive and repetitive task.
  • This invention will eliminate the time-consuming hard labour involved, but will still result in the hand-crafted look of tapered log walls.
  • the art and craft of building with natural logs continues to gain appeal, and removing this labour intensive aspect of the construction will allow time for log builders to focus more on innovative and creative hand-crafted corner notches and other details unique to their own style of building.
  • United States Patent No. 4,312,161 to Goldade teaches the shaping of elongate cylindrical structural members for their interfitting in the construction of walls or similar structures. This provides an example of machine profiled timbers that have been cut from whole logs.
  • United States Patent No. 4,510,724 to Magnuson teaches timber construction which incorporates the natural taper of the timbers and uses a uniform notching system for corner joinery. However, this system again relies on each timber being profiled to exact matching dimensions, again generating substantial amounts of wood waste and increased costs.
  • hydraulic equipment is being widely used in the wood manufacturing sector to position logs, align them on a determined plane, rotate them and mill them as required. Laser levellers are used in conjunction to ensure accuracy.
  • This process utilizes a machine to create the lateral notch, also known as a groove or cope, on the underside of a house building log and to mill a matching convex surface on the top of each log, creating walls that maintain the natural taper of each whole log used (refer to FIG. 1).
  • the convex curvature of the top of each log will be milled to match the concave curvature on the bottom of the log sitting directly above it, using a common curvature 13 for specified diameters.
  • a 16 inch diameter curvature is defmed as being equal to any portion of the perimeter of a 16 inch circle.
  • a 10 inch diameter curvature equals any portion of the perimeter of a 10 inch circle; refer to FIG.3 13.
  • the key factor in this process is to use logs of similar taper and mill them to exactly the same degree of taper. This is accomplished by positioning the log that is to be milled so that the top surface is on a horizontal plane. The concave groove is then cut into that surface. The log is then mechanically rotated 180 degrees so the opposite surface of the log is on top. Once again, hydraulic lifters and laser levellers position the log so that the top surface is essentially on a horizontal plane, with the log held in position so that the planing process results in creating the identical degree of taper in every log. A matching convex curvature is then milled on this surface.
  • level wall height is achieved every 2 rounds* (refer to FIG.1); this is contingent upon logs being stacked so that, at each end of the wall being built, a butt 11 (or largest diameter of a log) alternates with a tip 12 (or smallest diameter of a log); refer to FIG.1.
  • Trees grown in the same area have similar taper. Ideal house logs have 1 inch of taper in every 10 feet of length. If the taper is greater than that, the machine can still be used with the same results. Cutting blades with different curvatures would be used for different diameters of logs, however, with this concept, the same curvature blade and the same degree of taper in the logs used must be maintained for any one complete building. Logs ranging from 5 to 10 inches in diameter would use a 10" curvature blade. Logs ranging from 10 to 16 inches in diameter would use a 16 inch curvature blade. Logs ranging form 16 to 24 inches would use a 24 inch curvature blade.
  • a natural tapered house log milling machine would be designed so that the machine head would move down the length of the log, as opposed to the equipment being stationary and the log being turned and moved. This would enable logs of up to 55 feet in length to be milled.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Bearing And Curtain Walls (AREA)
  • Artificial Fish Reefs (AREA)
EP05102362A 2001-09-13 2001-09-13 Fräsverfahren zur Herstellung von natürlichen, verjüngenden Baumstämmen für Blockhäuser Withdrawn EP1566500A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/CA2001/001314 WO2003023158A1 (en) 2001-09-13 2001-09-13 Natural tapered house log milling process
EP01971566A EP1444409B1 (de) 2001-09-13 2001-09-13 Fräsverfahren zur herstellung von natürlichen, verjüngenden baumstämmen für blockhäuser

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP01971566A Division EP1444409B1 (de) 2001-09-13 2001-09-13 Fräsverfahren zur herstellung von natürlichen, verjüngenden baumstämmen für blockhäuser

Publications (1)

Publication Number Publication Date
EP1566500A1 true EP1566500A1 (de) 2005-08-24

Family

ID=4143163

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01971566A Expired - Lifetime EP1444409B1 (de) 2001-09-13 2001-09-13 Fräsverfahren zur herstellung von natürlichen, verjüngenden baumstämmen für blockhäuser
EP05102362A Withdrawn EP1566500A1 (de) 2001-09-13 2001-09-13 Fräsverfahren zur Herstellung von natürlichen, verjüngenden Baumstämmen für Blockhäuser

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01971566A Expired - Lifetime EP1444409B1 (de) 2001-09-13 2001-09-13 Fräsverfahren zur herstellung von natürlichen, verjüngenden baumstämmen für blockhäuser

Country Status (7)

Country Link
US (1) US20040237457A1 (de)
EP (2) EP1444409B1 (de)
JP (1) JP2005501990A (de)
AT (1) ATE298021T1 (de)
CA (1) CA2459444C (de)
DE (1) DE60111579T2 (de)
WO (1) WO2003023158A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2472614C2 (ru) * 2010-12-14 2013-01-20 Валерий Петрович Чулков Способ изготовления деревянного сруба с использованием механической обработки бревен

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE548733A (de) *
CA918882A (en) * 1970-02-24 1973-01-16 Maskuta Properties Ltd. Log of natural taper for prefabricated structures
US4312161A (en) 1979-02-28 1982-01-26 Goldade Sebastian M Log-joint system
US4510724A (en) 1981-10-13 1985-04-16 Karl Magnuson Building structure
US4903447A (en) 1988-05-16 1990-02-27 Mcdade Paul R Log profile and log structure incorporating said log profile

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525659A (en) * 1948-10-12 1950-10-10 Building Logs Inc Building log
US3863409A (en) * 1972-12-11 1975-02-04 Charles Raymond Fell Log cabin structure
US3951187A (en) * 1975-04-24 1976-04-20 Finis Lavell Chisum Machine to prepare logs for log houses
US4067368A (en) * 1976-04-20 1978-01-10 Beecroft William K Cabin log shaper
US4147000A (en) * 1977-10-31 1979-04-03 Lewandowski Robert E Insulated log building structure
JPS5496214A (en) * 1978-01-14 1979-07-30 Kaneto Saito Mokuzai Kk Method of building house of logs
US4167961A (en) * 1978-04-13 1979-09-18 New England Log Homes, Inc. Planer and groover
JPS611748A (ja) * 1984-06-12 1986-01-07 秋田　恭志 丸太材を連結して建造物を構成する方法
US4951435A (en) * 1989-01-17 1990-08-28 Lloyd Beckedorf Log building construction
JPH05141022A (ja) * 1991-11-21 1993-06-08 Yoshinori Okura 建築物の壁体構造
US5718091A (en) * 1996-03-25 1998-02-17 Sellers; Jonathan S. Construction of a log cabin
US6023895A (en) * 1997-06-24 2000-02-15 Anderson; Theodore W. Log interface and log walls and buildings constructed therefrom
US5878800A (en) * 1998-01-23 1999-03-09 Young; Ralph C. Rectangular opening box cutting apparatus
US6070376A (en) * 1998-09-03 2000-06-06 Asper; William D. Interfitting wooden and log walls
US6564526B2 (en) * 2000-03-02 2003-05-20 Accelerated Log Building, Inc. Accelerated log building method
CA2299841C (en) * 2000-03-02 2005-04-19 Robert W. Chambers Accelerated log building method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE548733A (de) *
CA918882A (en) * 1970-02-24 1973-01-16 Maskuta Properties Ltd. Log of natural taper for prefabricated structures
US4312161A (en) 1979-02-28 1982-01-26 Goldade Sebastian M Log-joint system
US4510724A (en) 1981-10-13 1985-04-16 Karl Magnuson Building structure
US4903447A (en) 1988-05-16 1990-02-27 Mcdade Paul R Log profile and log structure incorporating said log profile

Also Published As

Publication number Publication date
WO2003023158A1 (en) 2003-03-20
JP2005501990A (ja) 2005-01-20
CA2459444C (en) 2007-01-23
US20040237457A1 (en) 2004-12-02
EP1444409B1 (de) 2005-06-15
DE60111579T2 (de) 2006-05-04
EP1444409A1 (de) 2004-08-11
DE60111579D1 (de) 2005-07-21
ATE298021T1 (de) 2005-07-15
CA2459444A1 (en) 2003-03-20

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