CA2438614C - Debarking shaft for a debarking mechanism - Google Patents
Debarking shaft for a debarking mechanism Download PDFInfo
- Publication number
- CA2438614C CA2438614C CA002438614A CA2438614A CA2438614C CA 2438614 C CA2438614 C CA 2438614C CA 002438614 A CA002438614 A CA 002438614A CA 2438614 A CA2438614 A CA 2438614A CA 2438614 C CA2438614 C CA 2438614C
- Authority
- CA
- Canada
- Prior art keywords
- debarking
- shaft
- teeth
- machine
- shafts
- 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.)
- Expired - Lifetime
Links
- 239000002023 wood Substances 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
- B27L1/10—Debarking or removing vestiges of branches from trees or logs; Machines therefor using rotatable tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
- B27L1/02—Debarking or removing vestiges of branches from trees or logs; Machines therefor by rubbing the trunks against each other; Equipment for wet practice
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
- Catching Or Destruction (AREA)
- Connection Of Plates (AREA)
- Forging (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to a debarking shaft (3) for a debarking mechanism (1) , said debarking mechanism being intended for the decortication or pretreatmen t of trees (2) for separately performed final barking and for the expulsion of at least some of the removed barks from a wood flow passing through the debarking mechanism, said debarking mechanism comprising a number of rotatab le debarking shafts (3) extending parallel to the advancing direction of the trees (2) to be fed therethrough and provided with a number of teeth (4) extending beyond the circumferential surface of the shaft (3) and adapted to strip bark off the presently processed trees (2) transversely to the lengthwise direction of the trees and at the same to convey the trees transversely relative to said shafts (3), and said shafts (3), together with the teeth (4) thereof, being adapted to constitute at least a part of a support surface, upon which the presently processed trees (2) travel through the debarking mechanism (1). The debarking shaft (3) has its teeth (4) designed as a number of annular tooth rims (20), each of said tooth rims comprising two or more releasably connected elements (21, 22), having the outer periphery provided with the teeth (4) and said elements being adapted to be fitted around a body member (25) of the debarking shaft (3) by way of pre ss clamping.
Description
Debarking shaft for a debarking mechanism The invention relates to a debarking shaft for a debarking mechanism, said debarking mechanism being intended for the decortication or pretreatment of trees for separately performed final barking and for the expulsion of at least some of the removed barks from a wood flow passing through the debarking mechanism, said debarking mechanism comprising a number of rotatable debarking shafts extending parallel to the advancing direction of trees to be fed therethrough and provided with a number of teeth extending beyond the circumferential surface of the shaft and adapted to strip bark off the presently processed trees transversely to the lengthwise direction of the trees and at the same to convey the trees transversely relative to said shafts, and said shafts, together with the teeth thereof, being adapted to constitute at least a part of a support surface, upon which the presently processed trees travel through the debarking mechanism.
The above type of debarking mechanism is prior known for example from US
patents 4,685,498 and 5,394,912.
In the above type of debarking mechanism, the teeth are generally mounted fixedly in certain positions. In one application, the individual teeth can be replaceable, but even in that case the position of a tooth on the shaft remains always the same.
It is an object of the invention to provide a debarking shaft for a debarking mechanism, wherein the teeth of a toothed debarking shaft are readily removable and replaceable, as well as reversible regarding the rotating direction thereof.
Another object of the invention is to enable an axial and peripheral displacement and locking or clamping of teeth to a desired position.
According to the invention, these objects are accomplished by means of a debarking shaft of the invention, which is characterized in that the debarking shaft has its teeth designed as a number of annular tooth rims, each of said tooth rims comprising two or more releasably connected elements, having the outer periphery provided with the teeth and said elements being adapted to be fitted around a body member of the debarking shaft by way of press clamping.
The tooth rim elements are preferably provided with clamping means for forcing the elements toward each other against the body member of a debarking shaft. The clamping means may comprise for example a headless screw, having one end provided with a left-handed thread and the other end with a right-handed thread, as well as a gripping section between the threads for turning the headless screw.
The debarking shaft is preferably constituted by a circular pipe. Thus, adjacent tooth rims present on a common shaft can be readily locked or clamped on the shaft at an angular position arbitrarily different from each other in the shaft rotating direction, the teeth of adjacent tooth rims being capable of providing the shaft e.g. with helixes. The same way, the relative distance in axial direction between tooth rims present on a shaft can be adjusted as desired.
The debarking shaft has its body member provided, preferably for each tooth rim, with a guide element, preferably a key and slot, for guiding the tooth rims to position.
The debarking shaft has its body member preferably designed in its cross-section as a polygon, whereby the tooth rims can be readily guided and clamped to various angular positions.
FROM ADE & COMPANY IIUt~StP 13 2005 13:30!ST,13:29/N0,6310677103 P 3 -2a-According to an aspect of the invention, there is provided a debarking shaft for a debarking machine, said debarking machine comprising a number of ratatable debarking shafts extending parallel to an advancing direction of the lags and provided with a number of teeth extending beyond a circumferential surface of the shaft and adapted to strip bark off the logs transversely to a length of the lags and at the same to convey the logs transversely relative to said shafts, and said shafts, together with the teeth thereof, forming at least a part of a suppart surface, upon which the logs travel through the debarking machine, Characterized in that said teeth are carried by a number of annular loath rims, each of said tooth rims comprising two or more releasably connected elements having an outer periphery provided with the teeth and said elements being clamped around a body member of the debarking shaft.
The above type of debarking mechanism is prior known for example from US
patents 4,685,498 and 5,394,912.
In the above type of debarking mechanism, the teeth are generally mounted fixedly in certain positions. In one application, the individual teeth can be replaceable, but even in that case the position of a tooth on the shaft remains always the same.
It is an object of the invention to provide a debarking shaft for a debarking mechanism, wherein the teeth of a toothed debarking shaft are readily removable and replaceable, as well as reversible regarding the rotating direction thereof.
Another object of the invention is to enable an axial and peripheral displacement and locking or clamping of teeth to a desired position.
According to the invention, these objects are accomplished by means of a debarking shaft of the invention, which is characterized in that the debarking shaft has its teeth designed as a number of annular tooth rims, each of said tooth rims comprising two or more releasably connected elements, having the outer periphery provided with the teeth and said elements being adapted to be fitted around a body member of the debarking shaft by way of press clamping.
The tooth rim elements are preferably provided with clamping means for forcing the elements toward each other against the body member of a debarking shaft. The clamping means may comprise for example a headless screw, having one end provided with a left-handed thread and the other end with a right-handed thread, as well as a gripping section between the threads for turning the headless screw.
The debarking shaft is preferably constituted by a circular pipe. Thus, adjacent tooth rims present on a common shaft can be readily locked or clamped on the shaft at an angular position arbitrarily different from each other in the shaft rotating direction, the teeth of adjacent tooth rims being capable of providing the shaft e.g. with helixes. The same way, the relative distance in axial direction between tooth rims present on a shaft can be adjusted as desired.
The debarking shaft has its body member provided, preferably for each tooth rim, with a guide element, preferably a key and slot, for guiding the tooth rims to position.
The debarking shaft has its body member preferably designed in its cross-section as a polygon, whereby the tooth rims can be readily guided and clamped to various angular positions.
FROM ADE & COMPANY IIUt~StP 13 2005 13:30!ST,13:29/N0,6310677103 P 3 -2a-According to an aspect of the invention, there is provided a debarking shaft for a debarking machine, said debarking machine comprising a number of ratatable debarking shafts extending parallel to an advancing direction of the lags and provided with a number of teeth extending beyond a circumferential surface of the shaft and adapted to strip bark off the logs transversely to a length of the lags and at the same to convey the logs transversely relative to said shafts, and said shafts, together with the teeth thereof, forming at least a part of a suppart surface, upon which the logs travel through the debarking machine, Characterized in that said teeth are carried by a number of annular loath rims, each of said tooth rims comprising two or more releasably connected elements having an outer periphery provided with the teeth and said elements being clamped around a body member of the debarking shaft.
The teeth are preferably designed to be effective in both rotating directions of debarking shafts. The teeth effective in opposite rotating directions can be different from or similar to each other. When using different types of teeth in opposite rotating directions, the various rotating directions shall result in different barking capacities, e.g. for wintertime barking and summertime barking. It is also possible to use sharp teeth for the decortication of initially hard-to-bark or frozen trees, while worn teeth can be used for the treatment of easy-to-bark trees. The replacement is effected simply by dismounting a tooth rim and by remounting the same after turning it around.
Barking capacity can also be influenced by making one or more sections of a tooth rim toothless. Hence, some of the tooth rims on a debarking shaft can be completely or partially toothless.
The invention will now be described in more detail with reference to the accompanying drawings, in which:
Fig. 1 shows a debarking shaft for a debarking mechanism of the invention, in a schematic side view.
Fig. 2 shows a section along a line II-II in fig. 1.
Fig. 3 shows a section along a line III-III in fig. 2.
Fig. 4 shows a section along a line IV-IV in fig. 3.
Fig. 5 shows a section along a line V-V in fig. 3.
A debarking mechanism 1 shown in the drawings is intended for the decortication or pretreatment of trees 2 for separately performed final barking and for the expulsion of at least some of the removed barks from a wood flow passing through the debarking mechanism.
The debarking mechanism 1 is provided with a number of rotatable debarking shafts 3 extending parallel to the advancing direction of the trees 2 to be fed therethrough. In the illustrated example, the debarking shafts 3 have each end thereof provided with sprockets 6, whereby, at least at one end of the debarking mechanism 1, the sprockets 6 are by way of a sprocket chain (not shown) to each other and to the gear of an electric motor, not shown.
The debarking shafts 3 are provided with a number of teeth 4 extending beyond the circumferential surface of the shaft 3 and adapted to strip bark off the presently processed trees 2 transversely to the longitudinal direction of the trees and at same time to convey the trees transversely relative to the debarking shafts 3.
The debarking shafts 3, together with the teeth 4 thereof, constitute a part of a support surface for carrying the trees 2 through the debarking mechanism 1. The illustrated example includes four debarking shafts 3 which are assembled relative to each other to define an inclined plane. Other than that, the support surfaces comprise solid surfaces which are designed for providing, together with the support surface constituted by the debarking shafts, an open-ended chute covering the debarking mechanism 1 from end to end.
The debarking shaft 3 has its teeth 4 designed as a number of annular tooth rims 20, as best shown in figs. 3 and 4. In the example of fig. 4, each tooth rim 20 comprises two releasably connectable elements 21, 22, having the outer periphery thereof provided with the teeth 4. The elements 21, 22 are adapted to be fitted around a body member 25 of the debarking shaft 3 by way of press clamping.
The tooth rim 20 has its elements 21, 22 preferably provided with clamping 5 means, generally designated with reference numeral 23, for forcing the elements 21, 22 toward each other against the body member 25 of the debarking shaft 3.
In the example of fig. 4, the clamping means 23 comprises a headless screw, having one end provided with a left-handed thread and the other end with a right-handed thread, as well as a gripping section 24 between the threads for turning the headless screw. The elements 21 and 22 are provided with mating threads, whereby the gripping section 24 can be turned for drawing the elements 21, 22 towards or away from each other.
The body member 25 of the debarking shaft 3 is circular in its cross-section, being preferably constituted by a circular pipe. The body member 25 may be provided, for each tooth rim 20, with a guide element (not shown), preferably a key and slot, for guiding the tooth rims 20 to positions predetermined therefor.
The debarking shaft 3 may also have its body member 25 designed in its cross-section as a polygon, whereby the tooth rims can be readily guided and clamped to various angular positions relative to the body member 25.
According to the example of fig. 4, the teeth 4 can be designed to work in both rotating directions of the debarking shafts 3. The effective teeth 4 can be different from each other in different rotating directions,as shown in the example of fig. 4, or identical to. each other. The choice of various tooth shapes can be used to have an impact on attainable barking capacity.
Barking can be similarly influenced by setting the teeth 4 of the adjacent tooth rims 20 at angular positions different from each other. One or more of the tooth rims 20 can also be toothless (not shown).
The debarking shafts 3 have each end thereof provided with smaller-diameter shaft stubs 8, on which are mounted bearings, along with bearing cups 9 therefor, as well as the sprockets 6. The bearing cups 9 are adapted to be secured with screws ii to end panels 10 present at the ends of the debarking mechanism 1 in line with the debarking shafts 3. The end panels have a top edge thereof provided with open-topped grooves 12 for the 10 shaft stubs 8 of the debarking shafts 3, whereby, if necessary, the debarking shafts 3 can be readily lifted out by overhead route.
Barking capacity can also be influenced by making one or more sections of a tooth rim toothless. Hence, some of the tooth rims on a debarking shaft can be completely or partially toothless.
The invention will now be described in more detail with reference to the accompanying drawings, in which:
Fig. 1 shows a debarking shaft for a debarking mechanism of the invention, in a schematic side view.
Fig. 2 shows a section along a line II-II in fig. 1.
Fig. 3 shows a section along a line III-III in fig. 2.
Fig. 4 shows a section along a line IV-IV in fig. 3.
Fig. 5 shows a section along a line V-V in fig. 3.
A debarking mechanism 1 shown in the drawings is intended for the decortication or pretreatment of trees 2 for separately performed final barking and for the expulsion of at least some of the removed barks from a wood flow passing through the debarking mechanism.
The debarking mechanism 1 is provided with a number of rotatable debarking shafts 3 extending parallel to the advancing direction of the trees 2 to be fed therethrough. In the illustrated example, the debarking shafts 3 have each end thereof provided with sprockets 6, whereby, at least at one end of the debarking mechanism 1, the sprockets 6 are by way of a sprocket chain (not shown) to each other and to the gear of an electric motor, not shown.
The debarking shafts 3 are provided with a number of teeth 4 extending beyond the circumferential surface of the shaft 3 and adapted to strip bark off the presently processed trees 2 transversely to the longitudinal direction of the trees and at same time to convey the trees transversely relative to the debarking shafts 3.
The debarking shafts 3, together with the teeth 4 thereof, constitute a part of a support surface for carrying the trees 2 through the debarking mechanism 1. The illustrated example includes four debarking shafts 3 which are assembled relative to each other to define an inclined plane. Other than that, the support surfaces comprise solid surfaces which are designed for providing, together with the support surface constituted by the debarking shafts, an open-ended chute covering the debarking mechanism 1 from end to end.
The debarking shaft 3 has its teeth 4 designed as a number of annular tooth rims 20, as best shown in figs. 3 and 4. In the example of fig. 4, each tooth rim 20 comprises two releasably connectable elements 21, 22, having the outer periphery thereof provided with the teeth 4. The elements 21, 22 are adapted to be fitted around a body member 25 of the debarking shaft 3 by way of press clamping.
The tooth rim 20 has its elements 21, 22 preferably provided with clamping 5 means, generally designated with reference numeral 23, for forcing the elements 21, 22 toward each other against the body member 25 of the debarking shaft 3.
In the example of fig. 4, the clamping means 23 comprises a headless screw, having one end provided with a left-handed thread and the other end with a right-handed thread, as well as a gripping section 24 between the threads for turning the headless screw. The elements 21 and 22 are provided with mating threads, whereby the gripping section 24 can be turned for drawing the elements 21, 22 towards or away from each other.
The body member 25 of the debarking shaft 3 is circular in its cross-section, being preferably constituted by a circular pipe. The body member 25 may be provided, for each tooth rim 20, with a guide element (not shown), preferably a key and slot, for guiding the tooth rims 20 to positions predetermined therefor.
The debarking shaft 3 may also have its body member 25 designed in its cross-section as a polygon, whereby the tooth rims can be readily guided and clamped to various angular positions relative to the body member 25.
According to the example of fig. 4, the teeth 4 can be designed to work in both rotating directions of the debarking shafts 3. The effective teeth 4 can be different from each other in different rotating directions,as shown in the example of fig. 4, or identical to. each other. The choice of various tooth shapes can be used to have an impact on attainable barking capacity.
Barking can be similarly influenced by setting the teeth 4 of the adjacent tooth rims 20 at angular positions different from each other. One or more of the tooth rims 20 can also be toothless (not shown).
The debarking shafts 3 have each end thereof provided with smaller-diameter shaft stubs 8, on which are mounted bearings, along with bearing cups 9 therefor, as well as the sprockets 6. The bearing cups 9 are adapted to be secured with screws ii to end panels 10 present at the ends of the debarking mechanism 1 in line with the debarking shafts 3. The end panels have a top edge thereof provided with open-topped grooves 12 for the 10 shaft stubs 8 of the debarking shafts 3, whereby, if necessary, the debarking shafts 3 can be readily lifted out by overhead route.
Claims (21)
1. A debarking shaft for a debarking machine, said debarking machine comprising a number of rotatable debarking shafts extending parallel to an advancing direction of the logs and provided with a number of teeth extending beyond a circumferential surface of the shaft and adapted to strip bark off the logs transversely to a length of the logs and at the same to convey the togs transversely relative to said shafts, and said shafts, together with the teeth thereof, forming at least a part of a support surface, upon which the logs travel through the debarking machine, characterized in that said teeth are carried by a number of annular tooth rims, each of said tooth rims comprising two or more releasably connected elements having an outer periphery provided with the teeth and said elements being clamped around a body member of the debarking shaft.
2. A debarking shaft as set forth in claim 1, characterized in that the elements of the tooth rim are provided with clamps for forcing the elements toward each other against the body member of the debarking shaft.
3. A debarking shaft as set forth in claim 2, characterized in that the clamps comprises a headless screw, having one end provided with a left-handed thread and the other end with a right-handed thread, as well as a gripping section between the threads for turning the headless screw.
4. A debarking shaft as set forth in claim 1, characterized in that the debarking shaft body member comprises a circular pipe.
5. A debarking shaft as set forth in claim 1, characterized in that the debarking shaft body member is provided, for each tooth rim, with a guide element, preferably a key and slot, for guiding the tooth rims to position.
6. A debarking shaft as set forth in claim 1, characterized in that the debarking shaft body member has a polygonal cross-section.
7. A debarking shaft as set forth in claim 1, characterized in that the teeth strip bark from the logs in both rotating directions of the debarking shafts.
8. A debarking shaft as set forth in claim 1, characterised in that the teeth facing in opposite rotating directions of the debarking shaft are different from each other.
9. A debarking shaft as set forth in claim 1, characterized in that the teeth facing in apposite rotating directions of the debarking shaft are identical to each other.
10. A debarking shaft as set forth in claim 1, characterized in that the tooth rim has one or more sections which are toothless.
11. A debarking machine for removing bark from logs fed lengthways therethrough, said debarking machine comprising:
a plurality of rotatable debarking shafts, each debarking shaft comprising a shaft body;
a plurality of annular tooth rims, each of said tooth rims comprising two or more releasably connected elements having an outer periphery configured as debarking teeth; and clamping means for clamping said annular tooth rims to said shaft body.
a plurality of rotatable debarking shafts, each debarking shaft comprising a shaft body;
a plurality of annular tooth rims, each of said tooth rims comprising two or more releasably connected elements having an outer periphery configured as debarking teeth; and clamping means for clamping said annular tooth rims to said shaft body.
12. The debarking machine of claim 11, wherein said clamping means comprises fastener means for drawing the elements toward each other around the shaft body.
13. The debarking machine of claim 12, wherein the fastener means comprises a headless screw having a left-hand threaded shank portion and a right-hand threaded shank portion connected by a gripping section between the left-hand and right-hand threaded shank portions for turning the headless screw.
14. The debarking machine of claim 11, wherein the shaft body is cylindrical.
15. The debarking machine of claim 11, wherein the shaft body is provided with a guide element for each tooth rim for guiding the tooth rims into position.
16. The debarking machine of claim 15, wherein the guide element comprises key projecting from the shaft body or a slot in the shaft body.
17. The debarking machine of claim 11, wherein the shaft body is configured in its cross section as a polygon.
18. The debarking machine at claim 11, wherein the tooth rims are provided with teeth that are effective at stripping bark from logs regardless of the direction of rotation of the debarking shafts.
19. The debarking machine of claim 18, wherein the teeth effective in one direction are different from the teeth effective in the other direction.
20. The debarking machine of claim 18, wherein the teeth effective in one direction are identical to the teeth effective in the other direction.
21. the debarking machine of claim 11, wherein one or more tooth rims have one or more elements which are toothless.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20010756A FI112181B (en) | 2001-04-11 | 2001-04-11 | Barking shaft for barking device |
| FI20010756 | 2001-04-11 | ||
| PCT/FI2002/000121 WO2002083382A1 (en) | 2001-04-11 | 2002-02-15 | Debarking shaft for a debarking mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2438614A1 CA2438614A1 (en) | 2002-10-24 |
| CA2438614C true CA2438614C (en) | 2006-10-24 |
Family
ID=8560968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002438614A Expired - Lifetime CA2438614C (en) | 2001-04-11 | 2002-02-15 | Debarking shaft for a debarking mechanism |
Country Status (11)
| Country | Link |
|---|---|
| CN (1) | CN1297378C (en) |
| AT (1) | AT413964B (en) |
| BR (1) | BR0208819B1 (en) |
| CA (1) | CA2438614C (en) |
| DE (1) | DE10296635B4 (en) |
| ES (1) | ES2242519B1 (en) |
| FI (1) | FI112181B (en) |
| NO (1) | NO322544B1 (en) |
| RU (1) | RU2253565C2 (en) |
| SE (1) | SE526114C2 (en) |
| WO (1) | WO2002083382A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI117378B (en) * | 2004-04-20 | 2006-09-29 | Andritz Oy | Debarking Device |
| FI119283B (en) * | 2004-04-20 | 2008-09-30 | Andritz Oy | Stripping tool |
| CA2629826C (en) * | 2008-04-24 | 2015-10-06 | Realsearch Inc. | Flexible debarking abrader |
| DE102009021802A1 (en) | 2009-05-18 | 2010-11-25 | Pallmann Maschinenfabrik Gmbh & Co Kg | Tool for use with tool unit for debarking of tree trunks, has support base for mounting tool on rotors of debarker, where toolbar is provided, which is in direct contact with tree trunks |
| DE202009016936U1 (en) | 2009-12-15 | 2010-04-15 | Rudnick & Enners Maschinen- Und Anlagenbau Gmbh | Debarking shaft for a debarking process with a releasable attachment of the debarking tools |
| CN105328753A (en) * | 2014-08-13 | 2016-02-17 | 江苏保龙机电制造有限公司 | Four-roller peeling machine |
| CN108582372B (en) * | 2018-06-12 | 2023-11-07 | 安徽安真木业有限公司 | Hydraulic drive tree peeling device for density board production |
| CN108527581A (en) * | 2018-06-12 | 2018-09-14 | 安徽安真木业有限公司 | A kind of trees apparatus for peeling off for density board production |
| CN108527582A (en) * | 2018-06-12 | 2018-09-14 | 安徽安真木业有限公司 | A kind of wind pressure for density board production drives trees device for peeling |
| CN108481497A (en) * | 2018-06-12 | 2018-09-04 | 安徽安真木业有限公司 | A kind of trees peeling serrated knife for density board production |
| CN108481496B (en) * | 2018-06-12 | 2023-09-26 | 安徽安真木业有限公司 | A crooked trees device of skinning for density board production |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3228440A (en) * | 1964-01-22 | 1966-01-11 | Ingersoll Rand Canada | Log debarking apparatus |
| CA1225309A (en) * | 1984-02-08 | 1987-08-11 | Junichi Nakajima | Drum barker |
| US5094281A (en) * | 1991-01-25 | 1992-03-10 | Barnhill Equipment Ltd. | Debarking/delimbing apparatus |
| US5394912A (en) * | 1993-08-04 | 1995-03-07 | Real Search Inc. | Wood fibre debris processor |
| US5630453A (en) * | 1996-05-24 | 1997-05-20 | Fuji Kogyo Co., Ltd. | Debarking machine |
| US5673865A (en) * | 1996-08-29 | 1997-10-07 | Stroulger; Neal P. | Waste debarker |
| FI101524B1 (en) * | 1996-12-10 | 1998-07-15 | Andritz Patentverwaltung | Device for removing bark from a wood and bark comprising wood stream |
-
2001
- 2001-04-11 FI FI20010756A patent/FI112181B/en not_active IP Right Cessation
-
2002
- 2002-02-15 AT AT0904402A patent/AT413964B/en not_active IP Right Cessation
- 2002-02-15 BR BRPI0208819-3A patent/BR0208819B1/en not_active IP Right Cessation
- 2002-02-15 ES ES200350056A patent/ES2242519B1/en not_active Expired - Fee Related
- 2002-02-15 CA CA002438614A patent/CA2438614C/en not_active Expired - Lifetime
- 2002-02-15 DE DE10296635T patent/DE10296635B4/en not_active Expired - Fee Related
- 2002-02-15 RU RU2003132681/12A patent/RU2253565C2/en active
- 2002-02-15 WO PCT/FI2002/000121 patent/WO2002083382A1/en active IP Right Grant
- 2002-02-15 CN CNB028079477A patent/CN1297378C/en not_active Expired - Lifetime
-
2003
- 2003-09-11 SE SE0302425A patent/SE526114C2/en not_active IP Right Cessation
- 2003-10-09 NO NO20034522A patent/NO322544B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO20034522D0 (en) | 2003-10-09 |
| SE526114C2 (en) | 2005-07-05 |
| CN1501854A (en) | 2004-06-02 |
| RU2253565C2 (en) | 2005-06-10 |
| WO2002083382A1 (en) | 2002-10-24 |
| DE10296635B4 (en) | 2009-02-19 |
| DE10296635T5 (en) | 2004-04-22 |
| AT413964B (en) | 2006-07-15 |
| ES2242519B1 (en) | 2006-10-16 |
| BR0208819A (en) | 2004-03-09 |
| CA2438614A1 (en) | 2002-10-24 |
| FI112181B (en) | 2003-11-14 |
| SE0302425D0 (en) | 2003-09-11 |
| BR0208819B1 (en) | 2011-06-28 |
| NO20034522L (en) | 2003-10-09 |
| ES2242519A1 (en) | 2005-11-01 |
| FI20010756A0 (en) | 2001-04-11 |
| FI20010756A (en) | 2002-10-12 |
| NO322544B1 (en) | 2006-10-23 |
| CN1297378C (en) | 2007-01-31 |
| SE0302425L (en) | 2003-09-11 |
| ATA90442002A (en) | 2005-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20220215 |