WO2005095070A1 - Mobile lumber mill for sawing tree trunks in situ - Google Patents
Mobile lumber mill for sawing tree trunks in situ Download PDFInfo
- Publication number
- WO2005095070A1 WO2005095070A1 PCT/CH2005/000186 CH2005000186W WO2005095070A1 WO 2005095070 A1 WO2005095070 A1 WO 2005095070A1 CH 2005000186 W CH2005000186 W CH 2005000186W WO 2005095070 A1 WO2005095070 A1 WO 2005095070A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- longitudinal cross
- cross member
- mobile
- rectangle
- vertical supports
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/0041—Saw benches or saw bucks
- B27B17/005—Saw benches or saw bucks with the saw mounted on a carriage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B7/00—Sawing machines working with circular saw blades, specially designed for length sawing of trunks
Definitions
- This invention relates to a mobile sawmill for sawing logs on site, that is, near where the trees are felled.
- Previously known mobile sawmills are mostly built on a trailer and are relatively cumbersome.
- the tree trunks must be hoisted onto the trailer, which requires a crane, a hoist or a suitable hoist.
- the sawmills set up on trailers need to be brought in and set up over a sufficiently large, flat surface.
- a suitable place In the forest, a suitable place must first be provided for this, which is level, sufficiently large and to which access is possible with a vehicle with a trailer. Sometimes a piece of forest has to be cleared first. The clearing as well as the actual relocation and the setting up and operation of such a sawmill on a vehicle or trailer require official approval.
- the object of the present invention is to provide a sawmill which eliminates these disadvantages.
- This sawmill should be quick and easy to set up on site by two men.
- the access to the sawmill should be easy and the individual parts should be so light and small that they can be brought into pathless areas without any problems, for which a quad as a transport vehicle, on which the parts can be loaded, should be sufficient.
- the mobile sawmill can also be brought to the site by a helicopter.
- a mobile sawmill consisting of a frame consisting of four vertical supports to be erected at the four corner points of a rectangle, each of which the two are releasably connected to the narrow sides of the rectangle by means of two cross members, and a longitudinal cross member for releasable connection the vertical supports on one side of the broad side of the rectangle, and a carriage with a chainsaw running along the longitudinal cross member, and at least three wedges lying transversely to the broad side of the rectangle for positioning a tree trunk to be processed.
- Figure 1 The sawmill with a log, ready for sawing
- Figure 2 The sawmill with pairs of rollers and lever mechanisms for lifting and positioning a log.
- the sawmill consists of the following parts, which are visible in Figure 1: There are first four vertical supports 1, which consist of steel tubes. They are placed so that they are on the corner points of a rectangle lying on the floor. Two vertical supports 1 on the narrow side of this rectangle are connected to one another via two cross members 4.
- each cross-member 4 consists of two profiles or tubes 10, 11 which run parallel to one another and are connected to one another via webs 12, and at the ends of these tubes or profiles 10, 11 each carry a sleeve 8. With these sleeves 8, the two cross-members 4 can be placed over the vertical supports 1, the sleeves 8 being guided on the tubes of the vertical supports 1.
- a longitudinal cross member 7 is constructed in the same way, that is, it also consists of two profiles or tubes running parallel to one another 13, 14, which are connected to one another via webs 15 and at the ends of which a sleeve 9 is attached.
- the sawmill is set up by first defining the rectangle on the floor, ie where the vertical supports 1 are to come to be. Then a crossbar 4 is placed on the floor and a vertical support 1 is inserted into the end sleeves 8. Then one end of the longitudinal cross member 7 with its sleeves 9 is slipped over the one vertical support 1 and afterwards the lower cross member 4 is positioned there at the other end of the longitudinal cross member 7 and the two associated vertical supports 1 are inserted through their sleeves 8. Now the longitudinal cross member 7 is inserted with its sleeves 9 over the corresponding vertical support 1 at the end there. This creates a frame that is pretty stable. Next, the upper cross members 4 are placed over the vertical supports 1 and secured in the upper region of the vertical supports 1.
- a carriage 3 is now placed on the longitudinal cross member 7 and can be displaced along this longitudinal cross member 7. It can be roller-mounted or slide-mounted on the longitudinal cross member 7.
- This carriage 3 carries a chainsaw that can make a horizontal cut.
- the chain saw can be a chainsaw 16 with a gasoline engine, or a circular saw with a circular toothed saw blade or a band saw with an endlessly toothed metal band as a saw blade.
- the carriage can be moved back and forth on the longitudinal beam 7 via a separate drive and then has a limit switch on both sides, so that the drive is stopped when the carriage 3 arrives at the end of the longitudinal beam 7.
- the carriage 3 can also be pushed back and forth along the longitudinal cross member 7 by hand with the chainsaw 16.
- a log 5 is rolled on the wedges 2 into the interior of the frame and then secured on the wedges 2 with counter wedges. It only has to be aligned with the longitudinal cross member 7, that is, parallelism with the longitudinal cross member 7 must be adjusted with respect to its horizontal and vertical direction of travel. This can be easily achieved by positioning the wedges 2 beforehand. Readjustment can be carried out by slightly moving the wedges 2.
- the logs can be rolled onto the wedges 2 by wrapping a rope around them, which then leads from the top of the log 5 to the sawmill. If this rope is then pulled, the building trunk 5 is pulled against the sawmill while rolling on the wedges 2 and rolls onto the wedges 2.
- pairs of rollers 21 can also be used on bearing blocks, as shown in FIG. 2, so that the trunk to be sawed rests on these pairs of rollers 21 and can be easily rotated thereon.
- the pedestals can be designed so that they can be individually and continuously adjusted in height by means of a hydraulic lifting device 23 in the manner of a jack. A single tree trunk can then be rolled onto these pairs of rollers 21 by means of the wedges which have been pushed back somewhat.
- two lever mechanisms 22 can also be used, which function in the manner of a children's swing.
- the levers are then pushed with the end of their load arm from the side under the tree trunk and the power arm is depressed, whereby the tree trunk is raised and lifted onto the two pairs of rollers 21, after which the height is adjusted with the same.
- the cut can be made by starting the saw 16 and then the cut is made from one front side of the trunk 5 by driving the trolley 3 along the longitudinal cross member 7 becomes.
- the tree trunk 5 can be rotated further and can be raised and readjusted by rolling off the wedges 2 and repositioning the wedges 2.
- an intermediate support 6 or multiple intermediate supports 6 can be provided, as can be seen in the figure.
- Such an intermediate support 6 consists of two vertical supports 20, the one (not visible here) being quite short.
- the other vertical support 20 is visible here.
- These vertical supports 20 serve to stabilize a cross-member 19 which is guided on the vertical supports 20 by means of the sleeves 17.
- a support arm is welded to a further, height-adjustable sleeve 18, and this then carries the longitudinal cross member 7 there and gives it additional support if it is particularly long.
- the longitudinal cross member 7 can also consist of several sections which can be assembled. A sawmill constructed in this way can therefore be used for logs of any length.
- This sawmill is extremely easy to transport. It consists only of handy, light parts. These can all be easily transported by quad, i.e. a four-wheel drive small vehicle, so that no paths or roads to the sawing station are necessary. If necessary, the sawmill can also be carried by people or pack animals and can also be moved to places that are not easily accessible. Transporting the individual parts by helicopter is not a problem and we can do it with a small helicopter. Once on site, the sawmill is set up and ready for operation within a few minutes and can be operated by two workers.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05714728A EP1732741A1 (en) | 2004-03-31 | 2005-03-31 | Mobile lumber mill for sawing tree trunks in situ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH538/04 | 2004-03-31 | ||
CH5382004 | 2004-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005095070A1 true WO2005095070A1 (en) | 2005-10-13 |
Family
ID=34965923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2005/000186 WO2005095070A1 (en) | 2004-03-31 | 2005-03-31 | Mobile lumber mill for sawing tree trunks in situ |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1732741A1 (en) |
WO (1) | WO2005095070A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3926086A (en) * | 1974-11-01 | 1975-12-16 | Paul R Crane | Portable saw mill |
CA1037835A (en) * | 1977-03-10 | 1978-09-05 | Rolland Paquette | Chain saw jig |
DE3108856A1 (en) * | 1980-03-10 | 1981-12-10 | Anton 6410 Telfs Horeczky | Attachment for motor-driven portable chain-saws |
AU574938B2 (en) * | 1985-09-30 | 1988-07-14 | Hutchinson, B.M. | Portable sawmill |
DE20110990U1 (en) * | 2001-07-03 | 2001-10-25 | Kunzmann, Kurt, 87650 Baisweil | Mobile sawing device |
-
2005
- 2005-03-31 WO PCT/CH2005/000186 patent/WO2005095070A1/en active Application Filing
- 2005-03-31 EP EP05714728A patent/EP1732741A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3926086A (en) * | 1974-11-01 | 1975-12-16 | Paul R Crane | Portable saw mill |
CA1037835A (en) * | 1977-03-10 | 1978-09-05 | Rolland Paquette | Chain saw jig |
DE3108856A1 (en) * | 1980-03-10 | 1981-12-10 | Anton 6410 Telfs Horeczky | Attachment for motor-driven portable chain-saws |
AU574938B2 (en) * | 1985-09-30 | 1988-07-14 | Hutchinson, B.M. | Portable sawmill |
DE20110990U1 (en) * | 2001-07-03 | 2001-10-25 | Kunzmann, Kurt, 87650 Baisweil | Mobile sawing device |
Also Published As
Publication number | Publication date |
---|---|
EP1732741A1 (en) | 2006-12-20 |
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