CA1253773A - Debarking tool and arm combination - Google Patents
Debarking tool and arm combinationInfo
- Publication number
- CA1253773A CA1253773A CA000519207A CA519207A CA1253773A CA 1253773 A CA1253773 A CA 1253773A CA 000519207 A CA000519207 A CA 000519207A CA 519207 A CA519207 A CA 519207A CA 1253773 A CA1253773 A CA 1253773A
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- CA
- Canada
- Prior art keywords
- debarking
- tool
- arm
- recessed seat
- bearing surface
- 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
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Abstract
ABSTRACT OF THE DISCLOSURE
A debarking device comprising a debarking tool and a debarking arm, said debarking arm being adapted to receive said debarking tool, said debarking tool having a curved bearing surface and said debarking arm being provided with a recessed seat for receiving said debarking tool, said recessed seat having substantially the same radius of curvature as said bearing surface;
guide means provided in the bearing surface of said debarking tool and in said recessed seat of said debarking arm whereby the debarking tool can be located in different positions relative to said recessed seat, and means for fixing said debarking tool to the recessed seat of said debarking arm.
A debarking device comprising a debarking tool and a debarking arm, said debarking arm being adapted to receive said debarking tool, said debarking tool having a curved bearing surface and said debarking arm being provided with a recessed seat for receiving said debarking tool, said recessed seat having substantially the same radius of curvature as said bearing surface;
guide means provided in the bearing surface of said debarking tool and in said recessed seat of said debarking arm whereby the debarking tool can be located in different positions relative to said recessed seat, and means for fixing said debarking tool to the recessed seat of said debarking arm.
Description
DEBARKING TOOL ANU ARM COMBI NAlr r ON
BACK~ROUND OF THE INVENTION
1. Field of the invention The present invention generally relatee to eq~ipment for debarking logf~. More particularly the inVentiOQ concern~
a debarking tool, a debarking arm for a debarking device, and a debarking tool and arm combination for use in a debarking device.
BACK~ROUND OF THE INVENTION
1. Field of the invention The present invention generally relatee to eq~ipment for debarking logf~. More particularly the inVentiOQ concern~
a debarking tool, a debarking arm for a debarking device, and a debarking tool and arm combination for use in a debarking device.
2. De~cription of the Prior Art U.S. Patent 4,231,406, granted to the pre6ent applicant, discloses a c~ltting -tool and arm assembly which i9 uaed in debarking maohinef~ of the hollow rotor type. The tool, which is f~old under the Regi.stered Trademark PYRAMO, haa an outer surface at least partially in the shape of a pyrarnid which is adapted to engage a correspondingly shaped recess in the free end of a debarking arm in order to make the tool nonrotational rela-tive to the arm when secured in the recess. However, this prior art tool has one drawback, i.e., that the working edge thereof has itf position permanently fixed. Thu~, it i9 not possible to make the edge more or lass a~sressive, i.e. to alter the inclination of the edcJe relative to the arm, and to the surface of t.ho 1099 to be treated.
Thuf~ t is an object of the pre~ent invention to provide a debarkin~ tool which lets itself be po~itioned in ~everal pof~itionf~ each giving the working edge of the tool a different inclination relative to a Aebarkiny arm and the lo~ to be treated.
~ alf~o arl ob;ject of the present inv~nt.ion to proviAe a cleb~rkin~ arm for a debarking device which if~
prov:iclecl with mocln~ fcr pos.itively f~ecuring the debarkiny A toc~l In a cilofJen f~et pC)~litiOn, *
A further object of the pre6ent inven~ion is to provida a debarkincg tool and arm comblnation for a debarkinc3 devioe which allows the -tool to be positlvely positioned in a chosen one of a plurality of possible setting position~.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a debarking tool having a bearincJ surface adapted to be engaged by a tool carrier, said bearing surface having at least partly the Phape of a portion of a surface of revolution. Means are also provided for guiding setting movement of the tool in a direction aloncg the periphery of said surface of revolution. Preferably, rneans may be provided for preventing rotation of the tool about the rotational axis of said surface of revolution when the tool i8 attached to a d~barking arm of a debarking device.
Accordiny to the present invention, there is also provided a debarking arm for a debarkincy machine, said arm having in its free end a seat for a debarking tool, said ~qeat having at least partly the shape of a portion of a surface of revolution. Means are provided for guiding a debarking tool relative to the seat when moved along said surface of revolution. Proferably, means are p~ovided for preventiny movement of the tool along ~qaid qurface of revolution wh~n attached to said 3eat.
According to the present invention, there is additionally provided a c1ebarkiny tool and arrn combination for uae in a debarkinc~ rnachine, said tool havincJ a bearincJ
surfaca and said arm a ~1eat for receiviny said tool, said 3urface and ~eat having portion~ of equal curvature such that the tool may be rotationally positioned in different po~ition~ relative to the sea-t. Furthermore, the tool ancl ~eat havo coop~ratincl c3uide rneans for relatively 3uiding the tool and the seat wh~r~ the tool is rotated in said seat.
Preferably tho tool and the ~at al~o have coop~ratiny moan~
~ 35 for preventincJ rotati.on of the tool r~lative to the ~eat -f ~ when at.t,achec1 to u.~id ~1~t ln a cho~n ~ottin~J pooition.
12~37 /'~3 DESCRIPTION OF TI~E DRAWI~GS
The inventive ideas g:iven above will be more clearly understood ~rom the following description of preferred embodiment~ of the invention, with reference beiny made to the accompan~ing drawings, wherein:
- Fig. 1 is an exploded per~pective view of a tool and the free end of an arm according to a irst embodiment of the present invention;
- Fig. 2 is a perspective view of the tool of Fig. l seen from underneath;
- Figs. 3 and 4 are central sections at an enlarged scale taken through the tool and arm according to Fig. l and ~howiny the -tool in different setting positions;
- Fig. 5 is a perspective view from underneath of a tool according to a second embodiment of the presPnt invention;
- F'ig. 6 i8 an exploded perspective view of the tool of Fiy. 5 and the free end oE an arm according to the second embodiment of the present invention;
- F'ig. 7 iq a plane view showing, in an enlarged scale, the tool and arm of Fig. 6 in an assembled position, with alternative positions being showed with dot-dash lines;
- Fig. 8 is a central section through the tool and arm according to Fig~. 6 and 7;
~- Fig. 9 is a per~pective view rom underneath of a tool accordiny to a third ernbodiment of the p~esent invention;
- Fig. 10 i6 an e~ploded perspective viow of the tool of ~;'ig. 9 and the freo end of an arm according to the third embodirnent of the present invent.ton;
- Fig. 11 i9 a plane view showing, in an enlarged scalo, the tool and arm of Fig. 10 in an assembled position, w:ith two alternative po~it.i.on~ being shown with dot-dash lines; ancl F~ a central ~lection thruuc~3h the tool and rm acc~rd.in~ t.o ~LCJS, 10 ~nd l1.
.., .,~
~ ~253~773 DETAILED ~ESCRIPTION OF THE INVENTION
Referring to Figs. 1-4 of the drawings, a first embodiment of the invention will now be described. In the free end of a conventional debarking arm 21 is formed a recess 22 having the shape of a portion of a cylinder, The recess 22 forms a seat for a debarking tool 23 hav:ing an out~r cylindrical hearing surface 24 corresponding to recess -~ 22, Tool 23 has two edges 25 and 26 and may be position~d in sea-t 22 with either edge protruding from the free end of arm 21 so as to engage a log to be debarked, As is evident, since the curvatures of seat 22 and tool 23 are coaxial when assembled, tool 23 may rotate within seat 22 ~o as to vary the anglq of the worki.ng edge relative to the surace of a log to be debarked, In order to guide such rotational movement of the tool 23, the soat 22 i6 provided with a central ,groove 27 and the tool with a corr~sponding ridge 28, In order to arrest the tool in a chosen position of rotat.ion a screw 29 extending through a hole 30 in arrn 21 may be introduced through an elongate hole 31 in tool 23 and tightened by means of a nut 32, Preferably, the tool 23 has a cylindrical inner surface 33 and the nut 32 a corresponding cylindrical abuttiny surface 34 so as to enable rotation of th~ tool with only a slight loosing of the screw and nut.
In order to set the tool 23 in a number of predetermined positions, indentations 35, 36, 37, 38 are formed along the ridge 28, two on each side of hole 31, and a knob 39 protrudes from the bottom of the groove 27 and is adapt0d to engage any of indentations 35-38. The knob 39 is eccentrically located on a cylindrical body 40 which is rotatable within a hole 41 in the bottom of groove 27.
Pr~Eerably, ~ody ~0 has a slot 42 for engagement by a scrow driver or other tool for rotatiny body ~U. In order not to lose the rotatinc3 body ~0 when changing or turning tool 2'3, a ~cr~w ~3 ~xtencli~g through arrn 21 may b~ thr~aded int.o the rota~in~l hc>cty ~0, ~ - ~253t~73 In Figs. 3 and 4 are shown the four difEerent setting positlons fcr each edge of tool 23 that can be accomplished.
In Fi~s. 3 and 4 edge 25 is the working edge. In Fig. 3 knob 39 is shown in a first position being engaged in indentation 37, thus gi~ing tool 23 tha position shown in the full lines. In Fig. 4, knob 39 is shown in a second positionl rotated through 180 relative to the position of Fig. 3, and also enyaged in indentation 37, thus yiving tool 23 the position shown in frlll lines which is the position where the edge 25 forms the smallest possible angle with -the free end of arm 21 and, thus, with a log to ~e barked. In this position, the edge is the least aggressive. By rotating the body 40 through 1~0 relatiYe to the respective position of Figs. 3 and 4, two ~ur-ther tool positions can be established, these two positions being showed in dot-dash lines, the position of Fig. 3 being the most aggressive of tool 25.
It is readily appreciated that -- after turning tool 23 throuyh 180, edge 26 can be set in either of the four po~itions described using indentations 35 and 36.
Figs. 5 - a show a second embodiment of the invention wherein the tool and the Aeat therefor have corresponding spherical surfaces. A debarking tool 44 is shown in Fig. 5 having a partially--spherical bearing surface 45, two cutting or debarking edges 46 and 47l and two clirnbing edges ~ and 49. As is well knowIl in the art, the climbing edges cerve to engage the forward end of a log being advanced through a dobarkiny machine BO as to swing out the debarking arrns into their operatlnCJ positiorl. A guide ridge 50 extend~ centrally ovcr bearing surîace 45 between debarking edges 46 and 47.
An elongat~ hole 51 having the longitudinal direction of gllide ridge 50 i~ formed through tool 44.
Fic~ > ~lhow~ the tool of Fic3. 5 and a debarking arrn 5Z, tho fr~ end o~ which having a recess 53 of a 3S partial-~lpherical ~hape corre~ponding to the ahape of ~"',li bearing surface 45 of tool 44. The recess forms a seat for the tool 44 and is provided with three yrooves 54, 55, 56 intersectlng in the central portion of seat 53 ancl having widths adapted to receive ridge 50 of tool 44. A hole 57 extending through arm 52 and opening in the common point of intersection between grooves 54, 55, 56 serves to receive a screw 58 which is adapted to pass through hole 51 in tool 44. Tool 44 has a partial-spherical inner surface 59 concentric to its bearing surface 45. A circular nut 60 having a spherical bottom surface 61 corresponding to inner surface 59 lS adapted to receive screw 58.
As is evident frorn the above description and as appears from Fiys. 7 and 8, the tool ~4 can be placed in seat 53 with its guide ridge engaged in either of groove~3 54, 55, 56 whereby the working edge can be presentad as having one of three possible inclinations against the longitudinal direction of arm 52. In Fig. 7, the tool i9 po~3itioned in its center or neutral position defined by groove 55 and a~ ehown by the full lines. The positions defined by grooves 54 and 56 are shown in dot-dash lines. By sliding tool 44 along the groove chosen, the workin~ edge can be given a more or loss aggressive angle. In Fig. 8 the tool is sho~7n in full lines positioned with its edge 46 in itr~ mos~ aggressive position as defined by the extension of elongate hole 51, and in dot~tlash lint3s in it~ least aggressive position. By ti~htcnin~ the nut 60 and screw 58 extending throucJh holat3 57 and 58, the t.ool may be fixed in a position chosen along either of grooves 54, 55, 56.
Fi0s. 9 - 12 ehow an embodiment of the prt3sent invention resemblirlg that of Figs. 5 - 8 in 90 far that the tool and its seat in the debarking arm have carrespondin~J, partially-spherical ~3urfaces. Parts of the -tool and the arm that are iclentical to tho other figures have been given the eame r~efereIlce numarals. 'l'he important clifft-3rence resides in i 35 that the tool it3 not provided with arl extenclod rilge but ratht3r two cl~/3(rete prot~ut3iont~ 6~ c~ncl 63 ~3-ymmetrically ~ ~;2537'~
located on either side of elongate hole 51 in ite longitudinal direction. Correspondingl~, the eeat 53 has three intersecting rows 64, 65 and 66 of discrete indentations or impressions, each row containing three impressions on elther side of hole 57. As apparent from Figs. 11 and 12, the tool can be positioned with its working edge 46 in three differently inclined positions ~Fig. ll) each corresponding to a row 64~ 65, 66 of impressions, and three different aggressive positions ~Fig. 12), each corresponding to the location of two impressions along a chosen row 64, 65, 66.
The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Thuf~ t is an object of the pre~ent invention to provide a debarkin~ tool which lets itself be po~itioned in ~everal pof~itionf~ each giving the working edge of the tool a different inclination relative to a Aebarkiny arm and the lo~ to be treated.
~ alf~o arl ob;ject of the present inv~nt.ion to proviAe a cleb~rkin~ arm for a debarking device which if~
prov:iclecl with mocln~ fcr pos.itively f~ecuring the debarkiny A toc~l In a cilofJen f~et pC)~litiOn, *
A further object of the pre6ent inven~ion is to provida a debarkincg tool and arm comblnation for a debarkinc3 devioe which allows the -tool to be positlvely positioned in a chosen one of a plurality of possible setting position~.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a debarking tool having a bearincJ surface adapted to be engaged by a tool carrier, said bearing surface having at least partly the Phape of a portion of a surface of revolution. Means are also provided for guiding setting movement of the tool in a direction aloncg the periphery of said surface of revolution. Preferably, rneans may be provided for preventing rotation of the tool about the rotational axis of said surface of revolution when the tool i8 attached to a d~barking arm of a debarking device.
Accordiny to the present invention, there is also provided a debarking arm for a debarkincy machine, said arm having in its free end a seat for a debarking tool, said ~qeat having at least partly the shape of a portion of a surface of revolution. Means are provided for guiding a debarking tool relative to the seat when moved along said surface of revolution. Proferably, means are p~ovided for preventiny movement of the tool along ~qaid qurface of revolution wh~n attached to said 3eat.
According to the present invention, there is additionally provided a c1ebarkiny tool and arrn combination for uae in a debarkinc~ rnachine, said tool havincJ a bearincJ
surfaca and said arm a ~1eat for receiviny said tool, said 3urface and ~eat having portion~ of equal curvature such that the tool may be rotationally positioned in different po~ition~ relative to the sea-t. Furthermore, the tool ancl ~eat havo coop~ratincl c3uide rneans for relatively 3uiding the tool and the seat wh~r~ the tool is rotated in said seat.
Preferably tho tool and the ~at al~o have coop~ratiny moan~
~ 35 for preventincJ rotati.on of the tool r~lative to the ~eat -f ~ when at.t,achec1 to u.~id ~1~t ln a cho~n ~ottin~J pooition.
12~37 /'~3 DESCRIPTION OF TI~E DRAWI~GS
The inventive ideas g:iven above will be more clearly understood ~rom the following description of preferred embodiment~ of the invention, with reference beiny made to the accompan~ing drawings, wherein:
- Fig. 1 is an exploded per~pective view of a tool and the free end of an arm according to a irst embodiment of the present invention;
- Fig. 2 is a perspective view of the tool of Fig. l seen from underneath;
- Figs. 3 and 4 are central sections at an enlarged scale taken through the tool and arm according to Fig. l and ~howiny the -tool in different setting positions;
- Fig. 5 is a perspective view from underneath of a tool according to a second embodiment of the presPnt invention;
- F'ig. 6 i8 an exploded perspective view of the tool of Fiy. 5 and the free end oE an arm according to the second embodiment of the present invention;
- F'ig. 7 iq a plane view showing, in an enlarged scale, the tool and arm of Fig. 6 in an assembled position, with alternative positions being showed with dot-dash lines;
- Fig. 8 is a central section through the tool and arm according to Fig~. 6 and 7;
~- Fig. 9 is a per~pective view rom underneath of a tool accordiny to a third ernbodiment of the p~esent invention;
- Fig. 10 i6 an e~ploded perspective viow of the tool of ~;'ig. 9 and the freo end of an arm according to the third embodirnent of the present invent.ton;
- Fig. 11 i9 a plane view showing, in an enlarged scalo, the tool and arm of Fig. 10 in an assembled position, w:ith two alternative po~it.i.on~ being shown with dot-dash lines; ancl F~ a central ~lection thruuc~3h the tool and rm acc~rd.in~ t.o ~LCJS, 10 ~nd l1.
.., .,~
~ ~253~773 DETAILED ~ESCRIPTION OF THE INVENTION
Referring to Figs. 1-4 of the drawings, a first embodiment of the invention will now be described. In the free end of a conventional debarking arm 21 is formed a recess 22 having the shape of a portion of a cylinder, The recess 22 forms a seat for a debarking tool 23 hav:ing an out~r cylindrical hearing surface 24 corresponding to recess -~ 22, Tool 23 has two edges 25 and 26 and may be position~d in sea-t 22 with either edge protruding from the free end of arm 21 so as to engage a log to be debarked, As is evident, since the curvatures of seat 22 and tool 23 are coaxial when assembled, tool 23 may rotate within seat 22 ~o as to vary the anglq of the worki.ng edge relative to the surace of a log to be debarked, In order to guide such rotational movement of the tool 23, the soat 22 i6 provided with a central ,groove 27 and the tool with a corr~sponding ridge 28, In order to arrest the tool in a chosen position of rotat.ion a screw 29 extending through a hole 30 in arrn 21 may be introduced through an elongate hole 31 in tool 23 and tightened by means of a nut 32, Preferably, the tool 23 has a cylindrical inner surface 33 and the nut 32 a corresponding cylindrical abuttiny surface 34 so as to enable rotation of th~ tool with only a slight loosing of the screw and nut.
In order to set the tool 23 in a number of predetermined positions, indentations 35, 36, 37, 38 are formed along the ridge 28, two on each side of hole 31, and a knob 39 protrudes from the bottom of the groove 27 and is adapt0d to engage any of indentations 35-38. The knob 39 is eccentrically located on a cylindrical body 40 which is rotatable within a hole 41 in the bottom of groove 27.
Pr~Eerably, ~ody ~0 has a slot 42 for engagement by a scrow driver or other tool for rotatiny body ~U. In order not to lose the rotatinc3 body ~0 when changing or turning tool 2'3, a ~cr~w ~3 ~xtencli~g through arrn 21 may b~ thr~aded int.o the rota~in~l hc>cty ~0, ~ - ~253t~73 In Figs. 3 and 4 are shown the four difEerent setting positlons fcr each edge of tool 23 that can be accomplished.
In Fi~s. 3 and 4 edge 25 is the working edge. In Fig. 3 knob 39 is shown in a first position being engaged in indentation 37, thus gi~ing tool 23 tha position shown in the full lines. In Fig. 4, knob 39 is shown in a second positionl rotated through 180 relative to the position of Fig. 3, and also enyaged in indentation 37, thus yiving tool 23 the position shown in frlll lines which is the position where the edge 25 forms the smallest possible angle with -the free end of arm 21 and, thus, with a log to ~e barked. In this position, the edge is the least aggressive. By rotating the body 40 through 1~0 relatiYe to the respective position of Figs. 3 and 4, two ~ur-ther tool positions can be established, these two positions being showed in dot-dash lines, the position of Fig. 3 being the most aggressive of tool 25.
It is readily appreciated that -- after turning tool 23 throuyh 180, edge 26 can be set in either of the four po~itions described using indentations 35 and 36.
Figs. 5 - a show a second embodiment of the invention wherein the tool and the Aeat therefor have corresponding spherical surfaces. A debarking tool 44 is shown in Fig. 5 having a partially--spherical bearing surface 45, two cutting or debarking edges 46 and 47l and two clirnbing edges ~ and 49. As is well knowIl in the art, the climbing edges cerve to engage the forward end of a log being advanced through a dobarkiny machine BO as to swing out the debarking arrns into their operatlnCJ positiorl. A guide ridge 50 extend~ centrally ovcr bearing surîace 45 between debarking edges 46 and 47.
An elongat~ hole 51 having the longitudinal direction of gllide ridge 50 i~ formed through tool 44.
Fic~ > ~lhow~ the tool of Fic3. 5 and a debarking arrn 5Z, tho fr~ end o~ which having a recess 53 of a 3S partial-~lpherical ~hape corre~ponding to the ahape of ~"',li bearing surface 45 of tool 44. The recess forms a seat for the tool 44 and is provided with three yrooves 54, 55, 56 intersectlng in the central portion of seat 53 ancl having widths adapted to receive ridge 50 of tool 44. A hole 57 extending through arm 52 and opening in the common point of intersection between grooves 54, 55, 56 serves to receive a screw 58 which is adapted to pass through hole 51 in tool 44. Tool 44 has a partial-spherical inner surface 59 concentric to its bearing surface 45. A circular nut 60 having a spherical bottom surface 61 corresponding to inner surface 59 lS adapted to receive screw 58.
As is evident frorn the above description and as appears from Fiys. 7 and 8, the tool ~4 can be placed in seat 53 with its guide ridge engaged in either of groove~3 54, 55, 56 whereby the working edge can be presentad as having one of three possible inclinations against the longitudinal direction of arm 52. In Fig. 7, the tool i9 po~3itioned in its center or neutral position defined by groove 55 and a~ ehown by the full lines. The positions defined by grooves 54 and 56 are shown in dot-dash lines. By sliding tool 44 along the groove chosen, the workin~ edge can be given a more or loss aggressive angle. In Fig. 8 the tool is sho~7n in full lines positioned with its edge 46 in itr~ mos~ aggressive position as defined by the extension of elongate hole 51, and in dot~tlash lint3s in it~ least aggressive position. By ti~htcnin~ the nut 60 and screw 58 extending throucJh holat3 57 and 58, the t.ool may be fixed in a position chosen along either of grooves 54, 55, 56.
Fi0s. 9 - 12 ehow an embodiment of the prt3sent invention resemblirlg that of Figs. 5 - 8 in 90 far that the tool and its seat in the debarking arm have carrespondin~J, partially-spherical ~3urfaces. Parts of the -tool and the arm that are iclentical to tho other figures have been given the eame r~efereIlce numarals. 'l'he important clifft-3rence resides in i 35 that the tool it3 not provided with arl extenclod rilge but ratht3r two cl~/3(rete prot~ut3iont~ 6~ c~ncl 63 ~3-ymmetrically ~ ~;2537'~
located on either side of elongate hole 51 in ite longitudinal direction. Correspondingl~, the eeat 53 has three intersecting rows 64, 65 and 66 of discrete indentations or impressions, each row containing three impressions on elther side of hole 57. As apparent from Figs. 11 and 12, the tool can be positioned with its working edge 46 in three differently inclined positions ~Fig. ll) each corresponding to a row 64~ 65, 66 of impressions, and three different aggressive positions ~Fig. 12), each corresponding to the location of two impressions along a chosen row 64, 65, 66.
The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Claims (31)
1. A debarking device comprising:
a debarking tool and a debarking arm, said debarking arm being adapted to receive said debarking tool, said debarking tool having a curved bearing surface and said debarking arm being provided with a recessed seat for receiving said debarking tool, said recessed seat having substantially the same radius or curvature as said bearing surface;
guide means provided in the bearing surface of said debarking tool and in said recessed seat of said debarking arm whereby the debarking tool can be located in different positions relative to said recessed seat, and means for fixing said debarking tool to the recessed seat of said debarking arm, wherein said guide means comprises a ridge means and a groove means which are provided in the bearing surface of said debarking tool and in the recessed seat of said debarking arm, wherein the ridge means extends from the peripheral surface of the debarking tool and said groove means comprises at least one groove provided in said curved surface of the recessed seat, wherein said curved bearing surface and said recessed seat are spherical, and said groove means comprises a plurality of intersecting grooves which radially extend across said recessed surface.
a debarking tool and a debarking arm, said debarking arm being adapted to receive said debarking tool, said debarking tool having a curved bearing surface and said debarking arm being provided with a recessed seat for receiving said debarking tool, said recessed seat having substantially the same radius or curvature as said bearing surface;
guide means provided in the bearing surface of said debarking tool and in said recessed seat of said debarking arm whereby the debarking tool can be located in different positions relative to said recessed seat, and means for fixing said debarking tool to the recessed seat of said debarking arm, wherein said guide means comprises a ridge means and a groove means which are provided in the bearing surface of said debarking tool and in the recessed seat of said debarking arm, wherein the ridge means extends from the peripheral surface of the debarking tool and said groove means comprises at least one groove provided in said curved surface of the recessed seat, wherein said curved bearing surface and said recessed seat are spherical, and said groove means comprises a plurality of intersecting grooves which radially extend across said recessed surface.
2. A debarking device comprising:
a debarking tool and a debarking arm, said debarking arm being adapted to receive said debarking tool, said debarking tool having a curved bearing surface and said debarking arm being provided with a recessed seat for receiving said debarking tool, said recessed seat having substantially the same radius of curvature as said bearing surface;
guide means provided in the bearing surface of said debarking tool and in said recessed seat of said debarking arm whereby the debarking tool can be located in different positions relative to said recessed seat, and means for fixing said debarking tool to the recessed seat of said debarking arm, wherein said guide means comprises a ridge means and a groove means which are provided in the bearing surface of said debarking tool and in the recessed seat of said debarking arm, wherein said ridge means extends from the peripheral surface of the debarking tool and said groove means comprises at least one groove provided in said curved surface of the recessed seat, wherein said curved bearing surface and said recessed seat are cylindrical, a plurality of indentations positioned along said ridge means, and a knob means located in said groove means and extending from the bottom thereof to selectively engage one of said plurality of indentations.
a debarking tool and a debarking arm, said debarking arm being adapted to receive said debarking tool, said debarking tool having a curved bearing surface and said debarking arm being provided with a recessed seat for receiving said debarking tool, said recessed seat having substantially the same radius of curvature as said bearing surface;
guide means provided in the bearing surface of said debarking tool and in said recessed seat of said debarking arm whereby the debarking tool can be located in different positions relative to said recessed seat, and means for fixing said debarking tool to the recessed seat of said debarking arm, wherein said guide means comprises a ridge means and a groove means which are provided in the bearing surface of said debarking tool and in the recessed seat of said debarking arm, wherein said ridge means extends from the peripheral surface of the debarking tool and said groove means comprises at least one groove provided in said curved surface of the recessed seat, wherein said curved bearing surface and said recessed seat are cylindrical, a plurality of indentations positioned along said ridge means, and a knob means located in said groove means and extending from the bottom thereof to selectively engage one of said plurality of indentations.
3. A debarking arm for use in a debarking machine, said arm having at its free end a recessed seat for receiving a debarking tool, said seat having the shape of a portion of a surface of revolution, wherein said surface of revolution is a concave shaped surface, wherein said seat has guide means for guide setting of said tool in a direction along the periphery of said surface of revolution, and wherein said guide means includes a plurality of intersecting grooves extending along the periphery of said surface of revolution.
4. A debarking arm for use in a debarking machine, said arm having at its free end a recessed seat for receiving a debarking tool, said seat having the shape of a portion of a surface of revolution, wherein said surface of revolution is a cylindrical surface, wherein said recessed seat has guide means for guide setting of said tool in a direction along the periphery of said surface of revolution, wherein said guide means include at least one groove extending along the periphery of said surface of revolution, and including indexing means for fixing said tool in predetermined setting positions, said indexing means comprising a protrusion located in said groove.
5. The debarking arm according to claim 4, wherein said protrusion is adjustable in two setting positions.
6. A debarking arm for use in a debarking machine, said arm having at its free end a recessed seat for receiving a debarking tool, said seat having the shape of a portion of a surface of revolution, wherein said surface of revolution is a cylindrical surface, wherein said seat has guide means for guide setting of said tool in a direction along the periphery of said surface of revolution, wherein said guide means includes a plurality of intersecting rows of indentations.
7. A debarking device comprising:
a debarking arm provided with a curved recessed seat;
a debarking tool, provided with a cutting edge, having a curved bearing surface rotatably disposed within said recessed seat of said arm, said bearing surface being provided with a plurality of indentations;
means for retaining said tool within said curved recessed seat of said arm and for locking said tool in position with respect to said arm; and a protrusion extending from said recessed seat of said arm for cooperating with one of said indentations of said tool for setting said tool orientation with respect to said arm.
a debarking arm provided with a curved recessed seat;
a debarking tool, provided with a cutting edge, having a curved bearing surface rotatably disposed within said recessed seat of said arm, said bearing surface being provided with a plurality of indentations;
means for retaining said tool within said curved recessed seat of said arm and for locking said tool in position with respect to said arm; and a protrusion extending from said recessed seat of said arm for cooperating with one of said indentations of said tool for setting said tool orientation with respect to said arm.
8. The debarking device according to claim 7, wherein said protrusion is adjustable in position with respect to said recessed seat.
9. The debarking device according to claim 7, wherein said recessed seat of said arm and said bearing surface of said tool are cylindrically shaped and said debarking device including guide means for allowing rotation of said tool with respect to said arm without lateral movement during an adjustment operation and for providing a lateral restraint from forces exerted on said tool during operation of said tool.
10. The debarking device according to claim 8, wherein said protrusion is provided and eccentrically located on a rotatable member disposed within said arm for allowing adjustment of the position of said protrusion with respect to said recessed seat of said arm.
11. The debarking device according to claim 9, wherein said protrusion is provided and eccentrically located on a rotatable member disposed within said arm for allowing adjustment of the position of said protrusion in a circumferential direction of said recessed seat.
12. The debarking device according to claim 10, wherein said rotatable member is provided with a slot for rotation by a screw driver for adjustment of the position of said protrusion.
13. The debarking device according to claim 11, including a locking screw disposed within a hole in said arm and threaded into said rotatable member for locking it in place.
14. The debarking device according to claim 11, wherein said rotatable member is provided with a slot for rotation by a screw driver for adjustment of the position of said protrusion.
15. The debarking device according to claim 14, including a locking screw disposed within a hole in said arm and threaded into said rotatable member for locking it in place.
16. The debarking device according to claim 7, wherein said tool is provided with a through slot and said retaining means comprises a bolt extending through a hole in said arm through said slot in said tool and threaded into a nut.
17. The debarking device according to claim 9, wherein said tool is provided with a through slot oriented in the circumferential direction of said bearing surface of said tool with said plurality of indentations positioned on either side and in alignment with said slot.
18. The debarking device according to claim 17, wherein said protrusion is provided and eccentrically located on a rotatable member disposed within said arm for allowing adjustment of the position of said protrusion in a circumferential direction of said recessed seat.
19. The debarking device according to claim 9, wherein said guide means comprises a cylindrical shaped slot in said recessed seat of said arm engaging with a cylindrical shaped ridge extending from said bearing surface of said tool.
20. A debarking device comprising:
a debarking arm provided with a concave shaped recessed seat;
a debarking tool, provided with a cutting edge, having a convex shaped bearing surface adjustably disposed within said recessed seat of said arm, and means of retaining said tool within said recessed seat of said arm and for locking said tool in position with respect to said arm.
a debarking arm provided with a concave shaped recessed seat;
a debarking tool, provided with a cutting edge, having a convex shaped bearing surface adjustably disposed within said recessed seat of said arm, and means of retaining said tool within said recessed seat of said arm and for locking said tool in position with respect to said arm.
21. The debarking device according to claim 20, including guide means for allowing guided adjustment of said tool with respect to said arm before locking said tool with respect to said arm.
22. The debarking device according to claim 21, wherein said guide means comprises a plurality of intersecting grooves in said concave shaped recessed seat of said arm and a ridge is provided on said convex shaped bearing surface of said tool for cooperating with a selected one of said grooves.
23. The debarking device according to claim 20, wherein said tool has a substantially square shaped upper face for providing four cutting edges.
24. The debarking device according to claim 20, wherein said retaining means comprises a bolt extending through a hole in said arm and through a through slot in said tool with a nut disposed within a recess in said tool being threaded onto said bolt.
25. The debarking device according to claim 20, wherein said convex shaped bearing surface is provided with at least one protrusion for cooperating with one of a plurality of indentations provided in said concave shaped recessed surface of said arm for setting the orientation of said tool with respect to said arm.
26. The debarking device according to claim 24, wherein said recess in said tool is concave shaped and said nut is convex shaped for allowing adjustment of said tool relative to said arm.
27. A debarking device comprising:
a debarking arm provided with a curved recessed seat, said curved recessed seat provided with a plurality of indentations;
a debarking tool, provided with a cutting edge, having a curved bearing surface rotatably disposed within said recessed seat of said arm;
means for retaining said tool within said curved recessed seat of said arm and for locking said tool in position with respect to said arm; and at least one protrusion extending from said curved bearing surface of said tool for cooperating with at least one of said indentations in said curved recessed seat of said arm for setting said tool orientation with respect to said arm.
a debarking arm provided with a curved recessed seat, said curved recessed seat provided with a plurality of indentations;
a debarking tool, provided with a cutting edge, having a curved bearing surface rotatably disposed within said recessed seat of said arm;
means for retaining said tool within said curved recessed seat of said arm and for locking said tool in position with respect to said arm; and at least one protrusion extending from said curved bearing surface of said tool for cooperating with at least one of said indentations in said curved recessed seat of said arm for setting said tool orientation with respect to said arm.
28. The debarking device according to claim 27, wherein said tool has a substantially square shaped upper face for providing four cutting edges.
29. The debarking device according to claim 27, wherein said retaining means comprises a bolt extending through a hole in said arm and through a through slot in said tool with a nut disposed within a recess in said tool being threaded onto said bolt.
30. The debarking device according to claim 27, wherein said bearing surface convex shaped and said recessed surface of said arm is concave shaped.
31. The debarking device according to claim 29, wherein said recess in said tool is concave shaped and said nut is convex shaped for allowing adjustment of said tool relative to said arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000519207A CA1253773A (en) | 1986-09-26 | 1986-09-26 | Debarking tool and arm combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000519207A CA1253773A (en) | 1986-09-26 | 1986-09-26 | Debarking tool and arm combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1253773A true CA1253773A (en) | 1989-05-09 |
Family
ID=4134029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000519207A Expired CA1253773A (en) | 1986-09-26 | 1986-09-26 | Debarking tool and arm combination |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1253773A (en) |
-
1986
- 1986-09-26 CA CA000519207A patent/CA1253773A/en not_active Expired
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| Date | Code | Title | Description |
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| MKEX | Expiry |