WO1992000170A1 - Installation de scierie transportable - Google Patents

Installation de scierie transportable Download PDF

Info

Publication number
WO1992000170A1
WO1992000170A1 PCT/SE1991/000460 SE9100460W WO9200170A1 WO 1992000170 A1 WO1992000170 A1 WO 1992000170A1 SE 9100460 W SE9100460 W SE 9100460W WO 9200170 A1 WO9200170 A1 WO 9200170A1
Authority
WO
WIPO (PCT)
Prior art keywords
log
frame
saw mill
stop
ized
Prior art date
Application number
PCT/SE1991/000460
Other languages
English (en)
Inventor
Ulric MÜLLERN-ASPEGREN
Original Assignee
Muellern Aspegren Ulric
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 Muellern Aspegren Ulric filed Critical Muellern Aspegren Ulric
Publication of WO1992000170A1 publication Critical patent/WO1992000170A1/fr

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
    • B27B29/00—Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines; Travelling trunk or log carriages
    • 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
    • B27B17/0083—Attachments for guiding or supporting chain saws during operation

Definitions

  • the present invention relates to a portable saw mill for sawing of logs.
  • the saw mill is intended to be mounted in the immediate vicinity of the location where the trees have been felled in order that the processing from growing trees to sawn lumber can take place on site without heavy hauling of logs.
  • the saw mill comprises a frame with a clamping device for a log, a long runway rail adapted on the frame and a carriage travelling along the runway rail with a power-driven chain saw mounted on said carriage.
  • Timber may also be available in the vicinity of the place where building will take place, in which case it may be desirable to avoid the costly and unnecessary haulage of timber to a stationary sawmill and/or lumber to the building site.
  • utilizing special kinds of wood may be of great interest. e.g. types of wood which are not available from lumber yards or which are very expensive. These kinds of wood, such as precious wood, may instead be purchased while growing and be sawn at the location where the tree has been felled. There is also need for processing facilities for very thick logs which the conventional sawmills cannot manage.
  • a portable saw mill which comprises two bearing stands on which the log is rested and fastened by means of clamping devices, adapted on the stand.
  • a runway rail is adapted on which a carriage can be moved in the longitudinal direction of the log.
  • a chain saw is mounted on the carriage with the guide bar pointing vertically downwards so that a longi ⁇ tudinal cut is sawn in the clamped log as the carriage is moved along the runway rail.
  • a number of bearing stands are assembled into a rigid unit by means of a number of longi ⁇ tudinal girders.
  • Two longitudinal rails are attached to the upper side of the bearing stands and a carriage travels on said rails and on said carriage is mounted a chain saw with the guide bar pointing vertically downwards.
  • the log is lifted up and placed on the bearing stands under the car ⁇ riage and fastened between two clamping devices at either end of the log.
  • the known devices are portable but have the disadvantage of being heavy to work and unnecessarily complicated. In both devices some sort of lifting device is needed to enable lifting of the logs up onto the high bearing stands. Since the saw is fixed to the carriage, a sideways shifting of the log is required after that each plank is sawn out of the log. To perform this operation it is necessary, in the known devices, to either first release the log from the clamping devices, move it into the next sawing position and then refasten the log in this position for a new sawing operation, or that the device is equipped with complicated, expensive and heavy mechanical devices for log positioning and shifting into the new sawing position after each cut.
  • the object of the present invention is to solve the above problems by means of a portable saw mill which is easy to assemble and dismount as well as easy to carry, and which is also rigid, easy to work and which produces high quality lumber.
  • a device of the type known by way of introduction is, according to the invention, characterized in that during the sawing operation the log is intended to be fastened in the clamping device, which comprises at least one fixed stop and at least one tightened, spring-loaded counterstay, that the log being adapted to be fed towards the stop between each sawing operation and that the stop and ⁇ ount- erstay are arranged to steady hold the log along its long sides. 4
  • the portable saw mill comprises a collapsible frame with a detachable runway rail and a carriage with a detachable heavy-duty chain saw.
  • the saw mill can consequently be dismounted as required and trans ⁇ ported in two, three or four parts, each of which with a weight not exceeding what one person can carry to the location where the lumber is to be sawn.
  • the frame has a low profile and is made to be placed direct on the ground, which makes it possible to roll the log by hand, using e.g. a spit, onto the low frame. This implies the advantage of enabling one person to manage the sawmill single-handed and without any other mechanical aid than the chain saw.
  • the log's own weight is utilized to fix the jig to the ground, thereby creating stability in the simple frame.
  • This stability is essential to obtain sufficient accuracy in the sawing operation. So the low frame offers the benefits of good stability and manual handling of the logs. By virtue of this design, it is possible to handle logs of thick dimen ⁇ sions, which produce the best lumber.
  • the logs are fixed to the frame by means of a clamping device by clamping up the long sides of the log between a number of holding devices, i.e. at least one fixed stop on one long side and at least one counterstay on the other. It is possible to shift the stop on the frame and lock it in different positions, whereby these positions will determine the thickness of the sawn lumber.
  • the counterstay applies a spring-loaded pressure against the log so that the log is constantly pressed against the stop plate. When the stop is locked in one and the same position, all sawn planks will automatically have the same thickness without measuring and adjustment of the log prior to each sawing operation. The absence of time-consuming adjustments implies that the capacity of the saw mill in accordance with the invention will be high.
  • the saw mill is designed with dual guide bar control providing high sawing accuracy and a good quality end product.
  • the dual control is effected by one end of the guide bar being attached directly on the carriage and the other end running along a guiding slot in the frame. In this way, control is obtained both at the upper and the lower ends of the guide bar, resulting in even thickness along the entire length of the plank.
  • Figure 1 is a side elevation of a mounted saw mill with a log positioned to be sawn
  • FIG. 1 is a front elevation of the saw, mill according to Figure 1
  • Figure 3 is a top view of the stand without clamping device.
  • Figure 4 is a detailed side view oi the guide bar.
  • Figure 5 is a cross-sectional view along the line V-V in Figure 4 with an alter ⁇ native design of the lower control of the guide bar,
  • FIG. 6 is a cross-sectional view along the line VI-VI in Figure 1 with an al ⁇ ternative feeding device for the log.
  • Figure ⁇ 7 is a side elevation of Figure 6.
  • the frame (1) (see Figure 3) comprises a bottom frame (3) with a number of, preferably two, base girders (4) mounted parallel and at a distance in relation to one another, which girders rest on the ground.
  • a number of cross bars (5) are attached to the base girders (4), pre ⁇ ferably at the outer ends.
  • On the frame (1) are also mounted two longitudinal guiding rails (6), which form between the rails a longitudinal guiding slot (7) in the bottom frame (3).
  • the guiding slot (7) is open between the rails to prevent accumulation of dust during the sawing operation.
  • a number of vertical supports (8) are mounted articulated with the base girders (4) in such a way that the frame can be folded up when the saw mill is dismounted.
  • Figures 1 and 2 etc. is mounted on top of the supports (8, 9) and comprises two parallel guiding tracks (11).
  • the guiding tracks consist of longitudinal angle bars and on said guiding tracks a carriage (12) is adapted to move along the rails.
  • the two guiding tracks (11) are connected by means of a number of cross bars (13) thus forming a rigid frame.
  • a clamping device is adapted to hold the log (2) in a fixed position during the sawing operation.
  • the long sides of the log are fixed between a number of clamping devices comprising at least one fixed stop (15) on one side of the log (2) and at least one spring-loaded counterstay (16) on the other.
  • the fixed stop comprises an adjustable, long holding fixture (14) and, adapted to the holding fixture (14), a support plate (17) bearing against one long side of the log.
  • the stop (15) is shifted on a threaded pin on the support beam (8) , said pin running in a horizontal slot in the holding fixture (14).
  • the stop (15) is locked in the desired position by bracing the holding fixture (14) against the support beam by means of a nut (18) on the threaded pin.
  • the counterstay (16) preferably one on each base girder (4), is movable on the base girder and tightened in the direction of the log (2) by means of a rubber tightening device (19).
  • a rubber tightening device (19) is movable on the base girder and tightened in the direction of the log (2) by means of a rubber tightening device (19).
  • the log can be fed against the stop (15) either manually with the aid of a spit or the like or by means of a feeding device, for instance of the type shown in Figures 6 and 7.
  • a feeding device for instance of the type shown in Figures 6 and 7.
  • one end of a feeding girder (30) is 8 attached to an operating lever (31) by a rotary joint and the other end is attached to a supporting beam (32) by a rotary joint.
  • Operating lever (31) and supporting beam (32) are attached to the base girder ( ) , in such a way that they can rotate around two axles perpendicular to one another (33, 34), enabling the supporting beam to be moved along one plane parallel to the base girder (see Figure 6) as well as moved in one plane perpendicular to the base girder (see Figure 7) .
  • the feeding girder (30) will move upwards and forwards and will thereby lift the log from the base girder and bring it forwards against the stop (15) (not shown in Figure 6).
  • the operating lever is then brought in the direction of the arrow in Figure 7, i.e. perpendicular to the previous direction, whereby the feeding girder (30) is released from the log.
  • the operating lever (31) can be brought back to the initial position (see Figure 6) thus enabling the log to be carried forward once again.
  • the carriage (12) is movable along the runway rail (10) by means of eight traversing wheels (20), two at each corner of the carriage (12).
  • Each pair of wheels comprises two wheels, arranged perpendicularly, which clasp the outside of the angular guiding tracks (11).
  • the car ⁇ riage (12) clasps the guiding tracks (11), thus providing rigidity and high accuracy in the guiding of the saw (21).
  • An extendable locking pin (35) is adapted to the outside of the carriage (12) (see Figure 2) , which locking pin in an extended position runs under the edge of the outer guiding track (11).
  • the locking pin is a safety device which will prevent the carriage from tipping over in case of uneven load.
  • a conventional power-driven chain saw (21) is mounted, which is equipped with a cleaving chain (22), i.e. a chain ground for use in cleaving operations.
  • the saw is attached to the carriage by the guide bar (23) being screwed directly onto the carriage by means of pre ⁇ ferably two screws (27) through the upper part of the guide bar (23).
  • This attachment implies that perfect control of the upper part of the guide bar is obtained at the same time as it allows great adaptability for use of different types of chain saws. This attachment also facilitates the chain tightening operation.
  • the lower part of the guide bar (23) is guided along the longitudinal guiding slot (7) between the guiding rails (6) in the bottom frame (3).
  • the tip of the guide bar is equipped with sliding blocks (24) on both sides (see Figure 4) which slide along the guiding rails (6) when the saw (21) is moved along the runway rail (10).
  • FIG. 5 an alternative design is shown of the guiding of the saw tip in the guiding slot (7) between the guiding rails (6).
  • the tip of the guide bar is in this embodiment equipped with a yoke (25) which extends outside the tip in both directions of the slot.
  • wheels (26) are adapted, the diameter of which is somewhat smaller than the width of the guiding slot (7) . Thereby the wheels will run on one of the two guiding rails (6) when the carriage is moved.
  • a thin slice is initially cut from the log in order to create a flat surface along one long side of the log. Then the log is turned so that the flat side bears against the base girders. In this way the log will rest firmly on the frame whereby the feeding along the base girders is also facilitated.
  • the frame may, for instance, be fitted with one or more addi ⁇ tional base girders with stops to enable sawing of extra-short logs.
  • the runway rail may also be supplied with an extension with separate ground braces to enable sawing of extra-long planks.
  • a number of gauge blocks may be placed on each base girder between the support plate (17) and the log (2) .
  • the thick- ness of the gauge blocks is the same as the desired thick ⁇ ness of the sawn planks. After each sawing of a plank, said plank will be left in the frame bearing against the log, whereby the following sideways shifting of the log is adjusted by removal of one gauge block at each support plate (17). The handling is further facilitated by the fact that the light gauge blocks are considerably more easy to handle than the long, heavy planks.

Abstract

L'invention se rapporte à une installation de scierie transportable, servant à débiter des troncs d'arbre et destinée à être montée à proximité de l'emplacement d'abattage des arbres. L'installation de scierie comporte un châssis (1) pourvu d'un dispositif de serrage pour fixer un tronc d'arbre (2) et un long rail de roulement (10) adapté sur le châssis. Un chariot de roulement (12), sur lequel est fixé une tronçonneuse à chaine électrique (21), se déplace sur le rail (10). Le châssis (1) comporte une base (3) reposant sur le sol avec au moins deux poutres basses (4) disposées pratiquement parallèlement et à distance l'une de l'autre. Le tronc (2) repose sur les poutres de base et est maintenu par le dispositif de serrage pendant le tronçonnage. Le dispositif de serrage comporte au moins une butée fixe (15) et au moins un contre-support (16) serré et chargé par ressort, et le tronc (2) avance vers la butée entre chaque opération de tronçonnage. La butée (15) et le contre-support (16) sont conçus pour maintenir fermement le tronc (2) par ses côtés longs.
PCT/SE1991/000460 1990-06-28 1991-06-25 Installation de scierie transportable WO1992000170A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9002284A SE468160B (sv) 1990-06-28 1990-06-28 Monterbart saagverk
SE9002284-9 1990-06-28

Publications (1)

Publication Number Publication Date
WO1992000170A1 true WO1992000170A1 (fr) 1992-01-09

Family

ID=20379890

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1991/000460 WO1992000170A1 (fr) 1990-06-28 1991-06-25 Installation de scierie transportable

Country Status (2)

Country Link
SE (1) SE468160B (fr)
WO (1) WO1992000170A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014206620A1 (fr) * 2013-06-28 2014-12-31 Robert Bosch Gmbh Outil d'usinage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1122446A (fr) * 1955-02-26 1956-09-06 Appareil et installation pour approcher et mettre en place une grume contre les chaises de griffage d'un chariot de scie à grumes
DE1264035B (de) * 1959-01-15 1968-03-21 Commergnat Guilliet & Cie Vorrichtung zum Halten der Schwarten und Bretter waehrend des Saegens auf dem Blcokwagen einer Baumstammsaege
DE1957441A1 (de) * 1968-11-25 1970-11-26 Tsni I P Ki Mechanizacii I Ene Einrichtung fuer eine Bandsaegemaschine zum Laengsschneiden von Holz,beispielsweise Staemmen
US3695316A (en) * 1969-06-02 1972-10-03 Patrick J Pluckhahn Sawing timber
US4235140A (en) * 1979-07-13 1980-11-25 Reece Daniel R Portable chain saw mill
DE3108856A1 (de) * 1980-03-10 1981-12-10 Anton 6410 Telfs Horeczky Zusatzgeraet fuer motorgetriebene handkettensaegen
DE3529100A1 (de) * 1985-08-14 1987-02-19 Guenther Dipl Ing Wagener Vorrichtung zur durchfuehrung von laengsschnitten in holz

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1122446A (fr) * 1955-02-26 1956-09-06 Appareil et installation pour approcher et mettre en place une grume contre les chaises de griffage d'un chariot de scie à grumes
DE1264035B (de) * 1959-01-15 1968-03-21 Commergnat Guilliet & Cie Vorrichtung zum Halten der Schwarten und Bretter waehrend des Saegens auf dem Blcokwagen einer Baumstammsaege
DE1957441A1 (de) * 1968-11-25 1970-11-26 Tsni I P Ki Mechanizacii I Ene Einrichtung fuer eine Bandsaegemaschine zum Laengsschneiden von Holz,beispielsweise Staemmen
US3695316A (en) * 1969-06-02 1972-10-03 Patrick J Pluckhahn Sawing timber
US4235140A (en) * 1979-07-13 1980-11-25 Reece Daniel R Portable chain saw mill
DE3108856A1 (de) * 1980-03-10 1981-12-10 Anton 6410 Telfs Horeczky Zusatzgeraet fuer motorgetriebene handkettensaegen
DE3529100A1 (de) * 1985-08-14 1987-02-19 Guenther Dipl Ing Wagener Vorrichtung zur durchfuehrung von laengsschnitten in holz

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014206620A1 (fr) * 2013-06-28 2014-12-31 Robert Bosch Gmbh Outil d'usinage
CN105339144A (zh) * 2013-06-28 2016-02-17 罗伯特·博世有限公司 加工工具
US20170320227A1 (en) * 2013-06-28 2017-11-09 Robert Bosch Gmbh Machining Tool
CN105339144B (zh) * 2013-06-28 2020-08-04 罗伯特·博世有限公司 加工工具

Also Published As

Publication number Publication date
SE468160B (sv) 1992-11-16
SE9002284D0 (sv) 1990-06-28
SE9002284L (sv) 1991-12-29

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