WO1996031310A1 - Axe de scie et lame de scie pouvant être montee sur cet axe - Google Patents

Axe de scie et lame de scie pouvant être montee sur cet axe Download PDF

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Publication number
WO1996031310A1
WO1996031310A1 PCT/SE1996/000447 SE9600447W WO9631310A1 WO 1996031310 A1 WO1996031310 A1 WO 1996031310A1 SE 9600447 W SE9600447 W SE 9600447W WO 9631310 A1 WO9631310 A1 WO 9631310A1
Authority
WO
WIPO (PCT)
Prior art keywords
axle
saw
sleeve
blade
sides
Prior art date
Application number
PCT/SE1996/000447
Other languages
English (en)
Inventor
Kurt Janson
Original Assignee
Ab A K Eriksson
JANSON, Astrid
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 Ab A K Eriksson, JANSON, Astrid filed Critical Ab A K Eriksson
Priority to DE19681336T priority Critical patent/DE19681336T1/de
Priority to AU52942/96A priority patent/AU5294296A/en
Priority to CA002216922A priority patent/CA2216922C/fr
Publication of WO1996031310A1 publication Critical patent/WO1996031310A1/fr
Priority to FI973874A priority patent/FI973874A/fi

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
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/29—Details; Component parts; Accessories
    • B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
    • B27B5/32—Devices for securing circular saw blades to the saw spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/025—Details of saw blade body

Definitions

  • the present invention relates to a saw axle for floatingly supporting a plurality of saw blades, which are caused to rotate with the axle by virtue of a form-locking effect achieved between the outer contour of the axle and corre ⁇ sponding holes in respective saw blades.
  • the invention also relates to a saw blade for use with such an axle.
  • Circular saws that are used to saw logs and blocks into smaller dimensions include a plurality of axle-mounted saw blades.
  • the saw blades are usually fitted floatingly on the axle, i.e. are loosely displaceable thereon, therewith simplifying relative positional changes between the blades for adaptation to different blade settings, among other things.
  • Each blade is guided by outer blade guides which coact with said blade and which can be moved between differ ⁇ ent blade positions along the axle.
  • the blades are dogged by the rotating axle through the medium of splines, the axle being provided with a plurality of radially outwardly projecting splines which extend axially along the axle, wherein the blades are provided with corre ⁇ sponding recesses for coaction with the axle-mounted splines; see US-A-3, 516, 460, for instance.
  • the attachment is not statically determined, since it is not known whether or not the blade has contact with all splines when a sawing operation is started.
  • a conventional splined axle is relatively expensive to renovate, since it is necessary to remove the entire axle and possibly send the axle to a workshop to be reground, which is an expensive exercise.
  • One object of the present invention is to provide an axle on which saw blades can be floatingly-mounted and which provides statically determined contact with respective saw blades.
  • Another object is to provide such an axle which can be manufactured at relatively low cost, which is easy to grind and whose surfaces can be readily treated, and which can be renovated in a cost-effective manner when so required.
  • Still another object of the invention is to provide a saw blade that can be mounted on an inventive axle.
  • the first object is achieved with a saw axle of the kind defined in the introduc ⁇ tion which is characterized in that both the outer contour of the axle and the contour of the blade-mounting hole present three main sides for achieving statically determined three-point contact between axle and blade.
  • a three-sided axle constructed with the invention is relatively easy to produce and treat.
  • the three sides of the axle are suitably arcuate in shape, e.g. circular-arcuate, with the centres of respective arcs lying at the corners of an equilateral triangle.
  • the three arcuate sides merge together via arcuate parts whose radius of curvature is smaller than the radius of curvature of the main sides.
  • the axle comprises a core axle and a sleeve non-rotatably mounted thereon, wherein the outer contour of said sleeve presents said three main surfaces for coaction with corresponding main surfaces of respective blade-mounting holes.
  • the core axle and the inner surface of the sleeve are preferably circular in shape, wherein the sleeve is held firmly to the axle with the aid of at least one clamping joint.
  • the sleeve may be provided with passageways through which oil under pressure can be delivered to a space between the core axle and the sleeve for separating the same in an axial direction.
  • FIG. 1 is a partially sectioned view of one embodiment of an inventive axle comprised of a core axle and a surrounding sleeve;
  • Fig. 2 is an end view of the axle shown in Fig. 1, as seen in the direction of the arrows II-II;
  • Fig. 3 illustrates an inventive saw blade which can be fitted to the axle shown in Figs. 1 and 2.
  • Fig. 1 illustrates a core axle 1 having a conically tapering end-part or trunnion 2 which is intended to be supported in a bearing, not shown.
  • the inner end 3 of the axle is rotat- ably mounted in a saw frame (not shown) and driven in a desired, conventional manner.
  • the core axle is surrounded by an outer axle sleeve 4 provided with a through-penetrating bore for accommodating the core axle 1.
  • the bore has a circular cross-section of different diameters over different parts in accordance with the different parts of the core axle 1, which also has a circular cross-sectional shape.
  • the outer contour of the sleeve 4 comprises three main sides which in the case of the illustrated embodiment are comprised of circular-arcuate surfaces whose centres are located at the corners of an equilateral triangle located inwardly of the arcs.
  • the arcuate main sides merge with one another via circular- arcuate parts of smaller radius of curvature, the centres of said parts also lying at the corners of the equilateral triangle.
  • the arcuate abutment surfaces of the axle and the blade- mounting hole respectively also results in successive contact over a longer distance than that achieved with conventional splines. This results in a larger abutment and force-trans- mission surface and therewith less risk of grooves being worn in the outer surface of the sleeve 4 among other things, such grooves otherwise making it difficult to finely adjust the settings of the blades, as mentioned above.
  • An axle according to the Fig. 1 embodiment also provides the advantage that in the event of any damage, it is only necessary to draw the sleeve 4 from the axle 1 and send the sleeve to a workshop for renovation.
  • the sleeve 4 is secured to the core axle 1 to this end with the aid of a clamping joint 5, which may be of any convenient, known kind.
  • the clamping joint includes two conical, flanged sleeves 6, 7 which are displaced relative to one another with the aid of tightening screws 8 which function to tighten the sleeve 4 on the axle 1.
  • the reference numeral 9 identifies a spacing ring which functions to prevent undesirable movement between the various elements.
  • the sleeve 4 includes parts 10, 11 which have a centering function in coaction with the core axle 1, wherein a certain amount of clearance exists between the sleeve and the axle along the part 12 intermediate of said centering parts 10, 11.
  • the space provided by this clearance is connected to oil inlet and oil outlet passageways 13 and 14 respectively, wherein oil is also delivered through said space to a circumferentially extending groove 15 via a passageway 16 provided in the inner surface of the sleeve 4.
  • a pressure oil source is connected to the passageway 13 and air is allowed to pass out through the passageway 14 at the same time.
  • the pressure exerted by the oil will cause the sleeve 4 to be pushed from the core axle 1 to the right in Fig. 1.
  • the sleeve 4 can thus be removed easily from the axle 1 with the axle left mounted in the machine. Only the journal bearing coacting with the trunnion 2 need be swung to one side.
  • the sleeve can be readily refitted to the axle 1 and clamped firmly thereto with the aid of the clamping joint 5.
  • the invention thus simplifies renovation of the axle and substantially reduces the costs entailed thereby.
  • An axle that is constructed in accordance with the aforegoing is easier to manufacture than conventional splined axles. Scratches and the like can also be ground or polished away and surface coatings applied more easily than in the case of conventional splined axles, due to the smooth and even surfaces of the inventive axle.
  • the use of a three-sided axle having rounded or cut corners provides the advantages of static determined contact with the holes in the saw blades while retaining the largest possible "useful" blade radius to enable logs and blocks of large dimensions to be sawn. A purely triangular shape would greatly reduce the maximum sawing measurement.
  • the axle comprises a core axle and a sleeve surrounding the axle. It lies within the purview of the invention, however, to provide a solid saw axle with the aforedescribed outer contour so as to obtain the desired three-point contact and to dispense with the use of a surrounding sleeve. It will be understood that the sides of the three-sided axle/sleeve may have a curvature other than a purely circular curvature, as may also the transitions between the main sides of the axle/sleeve.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Harvester Elements (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

La présente invention concerne un axe de scie destiné au montage flottant d'un certain nombre de lames de scie, ces dernières étant entraînées par la rotation de l'axe en raison du verrouillage par coïcidence des formes entre la forme extérieure (4) de l'axe et un trou correspondant dans la lame considérée. La forme extérieure (4) de l'axe et la forme du trou de la lame présentent trois côtés principaux pour obtenir un contact à trois points, déterminé statiquement, entre l'axe et la lame. De préférence, l'axe est constitué par un noyau (1) et un manchon (4) monté sur lui d'une manière empêchant toute rotation, et la forme extérieure du manchon présente les trois surfaces principales. L'invention concerne également une lame de scie destinée à être montée sur l'axe en question.
PCT/SE1996/000447 1995-04-05 1996-04-04 Axe de scie et lame de scie pouvant être montee sur cet axe WO1996031310A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19681336T DE19681336T1 (de) 1995-04-05 1996-04-04 Eine Sägenachse und ein Sägeblatt, das auf der Achse montiert werden kann
AU52942/96A AU5294296A (en) 1995-04-05 1996-04-04 A saw axle and a saw blade which can be fitted onto the axle
CA002216922A CA2216922C (fr) 1995-04-05 1996-04-04 Axe de scie et lame de scie pouvant etre montee sur cet axe
FI973874A FI973874A (fi) 1995-04-05 1997-10-03 Sahanakseli ja akselille sovitettavissa oleva sahanterä

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9501261-3 1995-04-05
SE9501261A SE506537C2 (sv) 1995-04-05 1995-04-05 Sågaxel för flytande montering av ett antal sågklingor till följd av formlåsning samt en sågklinga att monteras på axel

Publications (1)

Publication Number Publication Date
WO1996031310A1 true WO1996031310A1 (fr) 1996-10-10

Family

ID=20397859

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/000447 WO1996031310A1 (fr) 1995-04-05 1996-04-04 Axe de scie et lame de scie pouvant être montee sur cet axe

Country Status (6)

Country Link
AU (1) AU5294296A (fr)
CA (1) CA2216922C (fr)
DE (1) DE19681336T1 (fr)
FI (1) FI973874A (fr)
SE (1) SE506537C2 (fr)
WO (1) WO1996031310A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5901629A (en) * 1996-07-12 1999-05-11 Precision Arbour Systems, Inc. Saw arbor and guided circular saw
US6230600B1 (en) 1996-07-12 2001-05-15 Precision Arbor Systems, Inc. Saw arbor and guided circular saw
EP1857237A1 (fr) 2006-05-15 2007-11-21 Homag Holzbearbeitungssysteme AG Dispositif de sciage pour des pièces en mouvement
WO2011147755A1 (fr) 2010-05-26 2011-12-01 Berner Fachhochschule - Biel Architektur, Holz Und Bau Dispositif de centrage de lames de scie circulaire et d'outils analogues sur l'arbre

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD417598S (en) 1999-02-24 1999-12-14 Black & Decker Inc. Rotatable cutting tool
USD424076S (en) 1999-02-24 2000-05-02 Black & Decker Inc. Mounting device for a cutting tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516460A (en) * 1968-03-27 1970-06-23 Masonite Corp Mounting for guided circular saws
US5373834A (en) * 1992-04-03 1994-12-20 Chiuminatta; Edward R. Mounting arbor for saw cutting blades

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516460A (en) * 1968-03-27 1970-06-23 Masonite Corp Mounting for guided circular saws
US5373834A (en) * 1992-04-03 1994-12-20 Chiuminatta; Edward R. Mounting arbor for saw cutting blades

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5901629A (en) * 1996-07-12 1999-05-11 Precision Arbour Systems, Inc. Saw arbor and guided circular saw
US6230600B1 (en) 1996-07-12 2001-05-15 Precision Arbor Systems, Inc. Saw arbor and guided circular saw
EP1857237A1 (fr) 2006-05-15 2007-11-21 Homag Holzbearbeitungssysteme AG Dispositif de sciage pour des pièces en mouvement
WO2011147755A1 (fr) 2010-05-26 2011-12-01 Berner Fachhochschule - Biel Architektur, Holz Und Bau Dispositif de centrage de lames de scie circulaire et d'outils analogues sur l'arbre

Also Published As

Publication number Publication date
FI973874A0 (fi) 1997-10-03
DE19681336T1 (de) 1998-05-07
SE506537C2 (sv) 1998-01-12
CA2216922C (fr) 2001-01-16
SE9501261L (sv) 1996-10-06
FI973874A (fi) 1997-10-03
AU5294296A (en) 1996-10-23
SE9501261D0 (sv) 1995-04-05
CA2216922A1 (fr) 1996-10-10

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