EP0103345A1 - Maschine zum Schneiden von Holzblöcken - Google Patents
Maschine zum Schneiden von Holzblöcken Download PDFInfo
- Publication number
- EP0103345A1 EP0103345A1 EP83301837A EP83301837A EP0103345A1 EP 0103345 A1 EP0103345 A1 EP 0103345A1 EP 83301837 A EP83301837 A EP 83301837A EP 83301837 A EP83301837 A EP 83301837A EP 0103345 A1 EP0103345 A1 EP 0103345A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- log
- framework
- trailer
- carriage
- gantry
- 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.)
- Withdrawn
Links
Images
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
- B27B17/00—Chain saws; Equipment therefor
- B27B17/0091—Wheeled chain saws; Chain saws mounted on or driven by vehicles, e.g. for sawing trees in situ
Definitions
- This invention has reference to log cutting means and has particular reference to mobile log cutting means, that is to say, log cutting means which are capable of being moved, preferably towed, to a position adjacent the position where a tree has been felled so that it may be sawn into strips or planks.
- a log cutting means comprises a supporting framework, means for locating a log on the framework the framework including a pair of roller tracks, means for moving a log on the roller tracks against the means for locating the log on the framework and a chain saw mechanism mounted on a carriage on the framework and capable of longitudinal movement along the framework to cut the log into strips or planks.
- the log cutting means is in the form of a trailer 1 capable of being towed behind a drive vehicle and which comprises a framework 2 extending at each side of the trailer from the front to the back of the trailer and has an upper outwardly projecting substantially horizontal flange which constitutes a track 3 for a carriage 4.
- the carriage 4 has a gantry framework 5 and at each lower side of the gantry framework 5 there is provided a twin pair of double rollers 6 (Fig. 2) which engage the upper and lower sides of the track 3 respectively.
- twin pairs of rollers roll on the track and are mounted on the gantry framework and arranged so that the carriage 4 is capable of moving lengthwise of the trailer from the back to the front thereof or vice versa.
- the carriage 4 carries an endless chain saw cutting mechanism 7 which passes round a drive mechanism conveniently hydraulic drive mechanisms 8.
- one drive mechanism is movably mounted on one upright member of the carriage 4 and another drive mechanism is movably mounted on the other upright member.
- the hydraulic drive mechanisms 8 are each mounted on a back plate 9 with four apertured brackets 10 (Fig 2) with a pair of locating posts 11 being part of the gantry framework 5 passing through two apertures arranged one above the other.
- An internally threaded member 12 is also secured on the back plate and a screw threaded bar 13 is screwed into this internally threaded member so that on rotation of the screw threaded bar 13 in one direction the bracketed hydraulic drive mechanism is raised whereas movement in the reverse direction causes the hydraulic drive mechanism 8 to be lowered.
- the respective screw threaded bars 13 on opposite sides of the gantry framework have corresponding crown gear wheels 14 at their upper ends which engage with complementary crown gear wheels 15 on a cross shaft 16 which is rotated by a manually operated drive wheel or power drive. It will be apparent that such rotation either raises or lowers the hydraulic drive mechanisms 8 on the opposite sides of the carrier with these drive mechanisms moving in synchronism.
- a graduation means (not shown) may be provided to enable the operator to be aware of the amount of movement of the hydraulic drive mechanism.
- the carriage 4 is moved on the track 3 by a carriage drive mechanism 18 which drives a winch mechanism 19 (to be hereinafter described) as well as the carriage drive.
- the drive mechanism 18 is connected through respective clutch mechanisms 20 to the winch mechanism 19 and to a pulley 21 mounted on a cross shaft on which a pair of sprockets 22 are also mounted, one on each side of the trailer, which sprockets have a respective drive chain 23 passing around them.
- Each drive chain also passes around an idler chain sprocket 24 at the other end of the trailer and the ends of the drive chain 23 are connected to the carriage 4.
- the sprockets 22 are rotated to move the chain 23 to pull the carriage 4 on the trailer either in forwards or backwards direction with the pairs of double rollers 6 riding on the track 3.
- the drive is connected to opposite sides of the carriage and serves to pull the carriage lengthwise of the trailer.
- the winch 1 is driven by the drive mechanism 18.
- a rope is wound on this winch so that a part of a tree (or log) can be pulled towards the trailer. For example, it can be pulled from a position in which it has been felled towards the trailer.
- the trailer has four adjustable legs 24 (two of which are shown in Fig. 2) one adjacent each corner of the trailer and these legs are each operable manually or by hydraulic power to raise the front end of the trailer into the position of the trailer illustrated in chain dotted lines in Fig. 2 to retain the trailer in position when it is disconnected from the drive vehicle. It is preferred that when the four legs are lowered into operational position the trailer is inclined downwardly as shown in chain dotted lines in Fig. 2 at an angle of about 10 .
- Each track 32 comprises a series of rollers with their axes arranged parallel to one another and each roller being mounted in a framework so arranged that the individual rollers are inclined transversely of the tracks at an angle of about 30 0 from the horizontal to retain the log between the roller tracks.
- the trailer has a cross shaft 27 clamped to the framework 2 and to the ends of which wheels 28 are secured.
- a pack system 30 is carried on the trailer to supply power for the hydraulic mechanisms.
- the motor of this system is transversely mounted through a worm and wheel drive.
- the power pack may be in the form of an on board diesel/hydraulic power pack giving independance, or a power pack take off unit which will require drive from the towing vehicle; or an electric motor which will need a mains supply.
- An auxiliary drive motor 31 may also be supplied and fitted to the cross shaft 16 which is used for raising and lowering the drive mechanisms rather than moving them manually.
- the log When a log is to be cut into strips or planks the log is pulled by the winch mechanism 19 onto the roller tracks 32 and then driven by the drive mechanism 18 and is clamped securely in position between the clamp 25 (Fig.l) and the backstop 26 (Fig.2).
- the carriage 4 is moved behind the log and the height of the chain saw cutting mechanism is selected to cut the first strip or plank of wood from the log.
- the chain saw mechanism is moved by the drive mechanism 8 with the chain saw out of contact with the log until the carriage is moved forward under the action of the carriage drive mechanism 18 which slowly moves the carriage (and hence the chain saw mechanism) forward - (that is from the right to the left as shown in Fig. 2) until one strip or plank is cut from the log.
- the carriage is then returned to the starting position, the chain saw mechanism is lowered by an amount corresponding to the desired thickness of the strip or plank and the operation is repeated. This operation is repeated until the log is cut into strips or planks as desired when the trailer with the cut log carried thereon is towed away.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8210629 | 1982-04-13 | ||
GB8210629 | 1982-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0103345A1 true EP0103345A1 (de) | 1984-03-21 |
Family
ID=10529646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP83301837A Withdrawn EP0103345A1 (de) | 1982-04-13 | 1983-03-31 | Maschine zum Schneiden von Holzblöcken |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0103345A1 (de) |
AU (1) | AU1344383A (de) |
BR (1) | BR8301860A (de) |
ZA (1) | ZA832539B (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10315327B2 (en) | 2016-06-08 | 2019-06-11 | Mattias Byström | Saw device |
CN111152301A (zh) * | 2020-01-14 | 2020-05-15 | 东莞市闻誉实业有限公司 | 锯切工具 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU673503B2 (en) * | 1991-10-30 | 1996-11-14 | Horsham Technology Pty Ltd | A chain saw mill |
CN112440340A (zh) * | 2020-10-19 | 2021-03-05 | 黄安霞 | 一种用于工业木质圆棍的切割装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB653179A (en) * | 1948-03-12 | 1951-05-09 | Henry John Alexander | Improvements in and relating to machines for sawing timber |
DE832486C (de) * | 1950-10-13 | 1952-02-25 | Dolmar Maschinen Fabrik Dipl I | Vorrichtung zum Laengszerteilen von Baumstaemmen und Balken |
GB682188A (en) * | 1949-10-12 | 1952-11-05 | John William Clubley Armstrong | Improvements in or relating to means for supporting power driven chain, saws for log slabbing or similar operations |
DE879295C (de) * | 1951-08-11 | 1953-06-11 | Dolmar Maschinen Fabrik G M B | Vorrichtung zum Laengszerteilen von vorzugsweise Baumstaemmen, Balken u. dgl. |
CH359277A (de) * | 1958-04-11 | 1961-12-31 | Gmuer Alois | Sägevorrichtung |
US3926086A (en) * | 1974-11-01 | 1975-12-16 | Paul R Crane | Portable saw mill |
US4245535A (en) * | 1978-07-28 | 1981-01-20 | Lockwood Larry D | Portable sawmill and method for cutting logs |
US4307641A (en) * | 1980-06-25 | 1981-12-29 | Robert Shapleigh | Portable sawmill |
-
1983
- 1983-03-31 EP EP83301837A patent/EP0103345A1/de not_active Withdrawn
- 1983-04-12 BR BR8301860A patent/BR8301860A/pt unknown
- 1983-04-12 AU AU13443/83A patent/AU1344383A/en not_active Abandoned
- 1983-04-12 ZA ZA832539A patent/ZA832539B/xx unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB653179A (en) * | 1948-03-12 | 1951-05-09 | Henry John Alexander | Improvements in and relating to machines for sawing timber |
GB682188A (en) * | 1949-10-12 | 1952-11-05 | John William Clubley Armstrong | Improvements in or relating to means for supporting power driven chain, saws for log slabbing or similar operations |
DE832486C (de) * | 1950-10-13 | 1952-02-25 | Dolmar Maschinen Fabrik Dipl I | Vorrichtung zum Laengszerteilen von Baumstaemmen und Balken |
DE879295C (de) * | 1951-08-11 | 1953-06-11 | Dolmar Maschinen Fabrik G M B | Vorrichtung zum Laengszerteilen von vorzugsweise Baumstaemmen, Balken u. dgl. |
CH359277A (de) * | 1958-04-11 | 1961-12-31 | Gmuer Alois | Sägevorrichtung |
US3926086A (en) * | 1974-11-01 | 1975-12-16 | Paul R Crane | Portable saw mill |
US4245535A (en) * | 1978-07-28 | 1981-01-20 | Lockwood Larry D | Portable sawmill and method for cutting logs |
US4307641A (en) * | 1980-06-25 | 1981-12-29 | Robert Shapleigh | Portable sawmill |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10315327B2 (en) | 2016-06-08 | 2019-06-11 | Mattias Byström | Saw device |
CN111152301A (zh) * | 2020-01-14 | 2020-05-15 | 东莞市闻誉实业有限公司 | 锯切工具 |
Also Published As
Publication number | Publication date |
---|---|
AU1344383A (en) | 1983-10-20 |
BR8301860A (pt) | 1983-12-20 |
ZA832539B (en) | 1983-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19840403 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19840918 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: AMEY, BRIAN HOWARD Inventor name: KNOWLES, RICHARD THOMAS |