EP0605770A2 - Chaîne de sciage pour scies à chaînes - Google Patents

Chaîne de sciage pour scies à chaînes Download PDF

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Publication number
EP0605770A2
EP0605770A2 EP93118157A EP93118157A EP0605770A2 EP 0605770 A2 EP0605770 A2 EP 0605770A2 EP 93118157 A EP93118157 A EP 93118157A EP 93118157 A EP93118157 A EP 93118157A EP 0605770 A2 EP0605770 A2 EP 0605770A2
Authority
EP
European Patent Office
Prior art keywords
chain
teeth
chain according
links
chain links
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.)
Granted
Application number
EP93118157A
Other languages
German (de)
English (en)
Other versions
EP0605770A3 (en
EP0605770B1 (fr
Inventor
Christoph Rossmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HARD-STIFTUNG
Hard Stiftung
Original Assignee
HARD-STIFTUNG
Hard Stiftung
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 HARD-STIFTUNG, Hard Stiftung filed Critical HARD-STIFTUNG
Priority to EP97101210A priority Critical patent/EP0773084B1/fr
Publication of EP0605770A2 publication Critical patent/EP0605770A2/fr
Publication of EP0605770A3 publication Critical patent/EP0605770A3/de
Application granted granted Critical
Publication of EP0605770B1 publication Critical patent/EP0605770B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B33/00Sawing tools for saw mills, sawing machines, or sawing devices
    • B27B33/14Saw chains
    • B27B33/142Cutter elements
    • B27B33/145Cutter elements having plural teeth on a single link
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B33/00Sawing tools for saw mills, sawing machines, or sawing devices
    • B27B33/14Saw chains
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/909Cutter assemblage or cutter element therefor [e.g., chain saw chain]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/909Cutter assemblage or cutter element therefor [e.g., chain saw chain]
    • Y10T83/913With means permitting removal of cutter element
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/909Cutter assemblage or cutter element therefor [e.g., chain saw chain]
    • Y10T83/917Having diverse cutting elements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/909Cutter assemblage or cutter element therefor [e.g., chain saw chain]
    • Y10T83/925Having noncutting depth gauge

Definitions

  • the invention relates to a saw chain for chainsaws, as specified in the preamble of claim 1 in detail.
  • the invention is therefore based on the object of designing a saw chain of the type mentioned in such a way that, while fully maintaining the operational mobility of the individual chain links, it at least largely eliminates undesired additional movements of the chain links and nevertheless, if desired, the replacement of individual chain links without destroying the chain linkage and without the use special tools allowed.
  • a saw chain according to the invention consists of links which can only be bent in their joint running plane and only up to a desired stop in their joints; this results in a linkage of elongated shape, and the saw chain behaves like a one-piece saw. Further guidance is therefore not necessary, and the need for chain lubrication is also eliminated.
  • the saw chain can be operated without pretension, and it can work equally effectively in both directions.
  • the demand for drive energy is so low that it can also be applied by an electric accumulator.
  • the operating speed is so low that even in the event of a chain derailment or a broken chain, there is no risk of accidents due to flying parts.
  • the slow chain run enables the chain to be stopped quickly in an emergency, and this also increases the stability of the cutting elements.
  • the individual chain links are shaped in such a way that, in a hooked connection, they absorb all the forces that occur during operation, such as longitudinal tensile force, working pressure and lateral twisting through pure pressure without friction.
  • the surfaces assigned to each other roll on each other. All relative movements between chain links are completed before they touch.
  • the individual chain links can be separated from one another by simply kinking one another beyond the maximum kink angle occurring in the sawing operation, without the need for any tools. An exchange of defective individual parts is therefore very easy and quick to implement.
  • FIG. 1 shows two interlinked chain links A and B, each of which consists of a central core part K and two outer side parts S and S 'in the manner shown for the chain link A in FIG. 2, but in FIG. 1 to illustrate the shape of the core part K, the side part S 'has been removed. Both the core part K and the side parts S and S 'can each be composed of riveted metal sheets.
  • the direction of travel of the saw chain which can be seen in FIG. 5 and which is made up of a large number of such chain links, is indicated in FIG. 1 by a double arrow L, since a sawing operation occurs when the chain links move from left to right and also from right to left is possible and equally effective.
  • Both the core parts K and the side parts S and S ' are each of the same design in all chain links, and in addition the side parts S and S' are each designed identically; therefore only the core part K and the side part S of the chain link A are described in detail below.
  • the core parts K have a straight upper edge and a straight lower edge, with a wedge-shaped drive tooth 17 projecting downward over the lower edge, via which the saw chain can be set in motion, while a cutting element is formed on the upper edge that, in the example shown, forms the middle part of a broaching tooth 10 which, as shown in FIGS. 2 and 4, also extends over the adjoining side parts S and S '.
  • the core part K of the individual member A has a forwardly directed and curved downward on its longitudinal central axis approach 1, which merges with a saddle 14 in the upper edge of the core part K and at its free End in a downward nose 11 runs out, which is still above the longitudinal central axis of the individual member A.
  • Approach 1 corresponds to an upper recess 3, which is formed from the rear edge into the respective core part K and in the assembled saw chain in each case receives the approach 1 of the next core part K, as shown in FIG. 1 for the two chain links A and B. is shown.
  • the recess 3 has a bevel 12 near its inner base, which is assigned to the nose 11 at the free end of the attachment 1.
  • a horn 13 is formed at the upper end of the recess 3 at the transition point into the upper edge of the respective core part K, which cooperates with the saddle 14 of the preceding core part K in the assembled saw chain, as can also be seen from the illustration in FIG. 1 .
  • a constriction 18 is provided on the upper edge of the recess 3 near its inner end, through which the recess 3 narrows so far at this point that the respectively assigned approach 1 is clamped and in secure contact with the Chamfer 12 of the recess 3 is held.
  • a hook 2 extends from the rear edge of the core part K and is bent downwards and forwards at its free end, this free end lying below the longitudinal central axis of the respective core part K.
  • a lower recess 4 is provided which receives the hook 2 of the preceding core part K in the assembled saw chain.
  • Each recess 4 has a notch 15 at its inner end, which corresponds to a position and shape of a projection 16 formed on the rear edge of the associated hook 2.
  • an upward and rearward curved joint pin 5 of approximately comma shape is formed, which nestles in the assembled saw chain to the inner cavity of the hook 2 of the preceding core part K, as shown in FIG. 1 for the chain links A. and B is shown.
  • the curved surfaces of the interacting sections of all core parts K preferably follow circular arcs, the radii and the center points of these circular arches thus differing from one another for corresponding surfaces or are offset from one another, that all relative movements are ended before mutual contact and contacting surfaces roll on each other without friction. This results in gradually closing gaps between the surfaces assigned to one another, so that fine dirt accumulating in the sawing operation is pushed and removed at the ends of the contact surfaces.
  • chain links A and B form a unit that is rigid against bending at its running level; within the running plane, however, kinking movements of the chain links A and B relative to one another are possible, as are shown, for example, in FIG. 3.
  • kinking the chain link A over the By kinking the chain link A over the
  • the position shown in FIG. 3 makes it possible to detach chain link A from chain link B and thus detach one or more chain links from the chain linkage without the use of any tools.
  • a lateral displacement of the chain links A and B against one another transversely to their running plane is counteracted by the nesting of each core part K between the two side parts S and S ', which can be seen in particular in FIGS. 1 and 2.
  • the side parts S and S ' which are identical to one another, have a shape that differs from the core parts K enclosed by them; however, just like the core parts K, they can be hooked into one another to form a closed, flexurally stiff cross-section to the running plane, but which can be bent within the running plane.
  • each of the side parts S and S ' has on its front edge a downward locking lug 7, which corresponds in shape to a recess 8 provided on the rear edge, so that the locking lugs 7 of the side parts S and S' of the subsequent chain link B. can be hooked into the recesses 8 in the side parts S and S 'of the preceding chain link A.
  • each of the side parts S and S ' has a downwardly projecting guide fin 6, which serves as a guide element for guiding the saw chain on its sword.
  • the chain links A and B are provided with cutting teeth 9 that are periodically alternating in the course of the saw chain.
  • the sawing work is divided into two different types of teeth, which take effect one after the other. 1, both a cutting tooth 9 and a clearing tooth 10 are present on each of the chain links A and B; it is also possible, as shown in Fig. 5, to equip each chain link with only one type of tooth, i.e. only with one cutting tooth or only with one broaching tooth, and likewise more than only two types of teeth can be provided, individual chain links if desired also without Cutting element can be left.
  • the cutting edges of the cutting teeth 9, which overall taper in a wedge shape upwards or outwards, run parallel to the running plane of the saw chain, and they are formed symmetrically along the chain running direction L and crescent-shaped upwards or outwards. In this way, the cutting teeth 9 cut into the material to be cut with a predetermined depth and thus ensure a smooth and step-free sawing surface thereon.
  • the clearing teeth 10 have two mutually parallel cutting edges in the example shown, which run at 90 ° against the chain running direction L. They work analogously to planer knives. Instead of the design of the cutting edges shown, a symmetrical arrow or notch shape is also possible for the cutting edges, and a cutting edge course oblique to the chain running direction L can also be provided.
  • Both the cutting teeth 9 and the clearing teeth 10 can be connected to the chain links A and B interchangeably, as well as any other cutting elements.
  • the invention can be described as a saw chain for chainsaws with a large number of chain links which are coupled to one another in a common running plane and carry cutting elements and carry cutting elements.
  • the individual links are directly connected to one another by interlocking adjacent individual links along edge surfaces running perpendicular to the common running plane to form a bandage that is rigid transversely to the common running plane.
  • each chain link has an at least three-layer structure with an inner core part and two side parts, each core part having a downward-curved approach from its front edge when the chain runs forward and a downward curve starting from its rear edge when the chain runs forward and has hooks bent at the front as well as an upper and rear recess complementary to the attachment as a receptacle for the attachment of the next core part in the course of the chain and a lower and front recess ending in a hinge pin for hanging the hook of the core part preceding in the course of the chain.
  • At least two types of teeth with differing cutting edges can be provided as cutting elements on the chain links, which periodically alternate successively along the chain hoist, wherein preferably the teeth of one type of cutting teeth and the teeth of the other type of broaching teeth.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Holo Graphy (AREA)
  • Fats And Perfumes (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Dry Shavers And Clippers (AREA)
  • Chain Conveyers (AREA)
EP93118157A 1992-11-09 1993-11-09 Chaîne de sciage pour scies à chaînes Expired - Lifetime EP0605770B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97101210A EP0773084B1 (fr) 1992-11-09 1993-11-09 Outil de sciage, en particulier chaíne de sciage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4237781A DE4237781C2 (de) 1992-11-09 1992-11-09 Sägekette für Kettensägen
DE4237781 1992-11-09

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP97101210A Division EP0773084B1 (fr) 1992-11-09 1993-11-09 Outil de sciage, en particulier chaíne de sciage
EP97101210.9 Division-Into 1997-01-27

Publications (3)

Publication Number Publication Date
EP0605770A2 true EP0605770A2 (fr) 1994-07-13
EP0605770A3 EP0605770A3 (en) 1994-08-24
EP0605770B1 EP0605770B1 (fr) 1997-07-30

Family

ID=6472436

Family Applications (2)

Application Number Title Priority Date Filing Date
EP93118157A Expired - Lifetime EP0605770B1 (fr) 1992-11-09 1993-11-09 Chaîne de sciage pour scies à chaînes
EP97101210A Expired - Lifetime EP0773084B1 (fr) 1992-11-09 1993-11-09 Outil de sciage, en particulier chaíne de sciage

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP97101210A Expired - Lifetime EP0773084B1 (fr) 1992-11-09 1993-11-09 Outil de sciage, en particulier chaíne de sciage

Country Status (8)

Country Link
US (1) US5988035A (fr)
EP (2) EP0605770B1 (fr)
AT (2) ATE224252T1 (fr)
BR (1) BR9305717A (fr)
CA (1) CA2127708A1 (fr)
DE (3) DE4237781C2 (fr)
DK (1) DK0773084T3 (fr)
WO (1) WO1994011166A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2305702B (en) * 1995-09-29 1999-06-02 Norman Shekleton A pipe connector
DE29815228U1 (de) 1998-08-25 1998-11-12 Trumpf GmbH + Co., 71254 Ditzingen Trennvorrichtung zum Bearbeiten von Sandwichplatten
DE20202519U1 (de) * 2002-02-18 2003-07-03 Trumpf Gruesch Ag Gruesch Sägekette mit Tiefenbegrenzung
SE532991C2 (sv) * 2008-09-17 2010-06-01 Komatsu Forest Ab Förfarande och anordning vid sågkedja
US20110072944A1 (en) * 2009-09-29 2011-03-31 Jeffrey Eggers Flexible linked cutting system
DE102012004049A1 (de) * 2012-03-02 2013-09-05 Robert Bosch Gmbh Verfahren zur Herstellung von zumindest einem Schneidstrangsegment eines Schneidstrangs einer Werkzeugmaschinentrennvorrichtung
DE102012004051A1 (de) * 2012-03-02 2013-09-05 Robert Bosch Gmbh Werkzeugmaschinentrennvorrichtung
DE102012215460A1 (de) * 2012-08-31 2014-03-06 Robert Bosch Gmbh Schneidstrangsegment
DE102013200903A1 (de) * 2013-01-22 2014-07-24 Robert Bosch Gmbh Schneidstrangsegment
WO2016020722A1 (fr) * 2014-08-06 2016-02-11 Fantini Sud S.P.A. Chaîne pour machine à scier pour couper des pierres d'ornement, conçue pour empêcher l'entrée d'impuretés entre la liaison interne et la liaison externe de la chaîne
US10138685B1 (en) 2015-12-18 2018-11-27 Jeffrey Eggers Drilling system with teeth driven in opposite directions
DE102019106459A1 (de) 2019-03-13 2020-09-17 Avova Gmbh Höhenverstelleinrichung einer Kopfstütze eines Kindersitzes

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US614003A (en) 1898-11-08 Band-saw

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE582466C (de) * 1933-08-15 Stihl Andreas Saegekette mit Schneidzaehnen und dazwischen angeordneten Raeumzaehnen
CA855018A (en) * 1970-11-03 W. Oehrli John Saw chains and sharpeners
US1178362A (en) * 1915-05-07 1916-04-04 Rode Nicolay Wall Saw.
US1412315A (en) * 1920-11-24 1922-04-11 Peters Franklin Ford Saw
US1483387A (en) * 1922-05-16 1924-02-12 Serin Maurice Camille Henri Chain-saw machine
US1634643A (en) * 1924-02-07 1927-07-05 Samuel J Bens Interlocking link
US1671295A (en) * 1926-01-26 1928-05-29 Kirby Ralph Endless crosscut saw
US1652295A (en) * 1926-11-16 1927-12-13 Chain Saw Corp Chain saw
US2348612A (en) * 1941-02-20 1944-05-09 William H Deacon Power saw
GB549945A (en) * 1941-10-30 1942-12-15 Mellor Bromley & Co Ltd Improvements in or relating to cutting chains for chain saws
US2435892A (en) * 1944-01-07 1948-02-10 Mall Tool Company Cutting chain
CH287499A (fr) * 1947-07-03 1952-12-15 Sonapar Societe De Participati Machine pour débiter une matière pierreuse.
US2583243A (en) * 1950-04-03 1952-01-22 Tweedie Charles James Chain saw
US3298406A (en) * 1964-05-15 1967-01-17 Herbert V Erickson Chain saw chain
US3447577A (en) * 1966-06-13 1969-06-03 Stanley Works Circular trim saw
DE1600247A1 (de) * 1967-01-17 1970-03-05 Amsted Ind Inc Kraftuebertragungskette
CH462522A (de) * 1967-10-09 1968-09-15 Schmid Hans Schneidekette mit Messerlaschen und Verwendung derselben
US3692073A (en) * 1970-09-15 1972-09-19 Carl W Easterwood Drag saw
US3945289A (en) * 1975-04-14 1976-03-23 Emilio Retana Rodriguez Saw tooth
US3945288A (en) * 1975-04-25 1976-03-23 Textron Inc. Saw chain
DE2758380A1 (de) * 1977-12-28 1979-07-12 Hamer R Geerd Dr Med Kette
US4882901A (en) * 1980-11-26 1989-11-28 The Laitram Corporation Detachable link chain
SE8901038L (sv) * 1989-03-23 1990-09-24 Ernst Tallberg Handverktyg
US5226404A (en) * 1989-09-22 1993-07-13 Mitsubishi Metal Corporation Cutting apparatus
EP0423501B1 (fr) * 1989-09-22 1995-12-13 Mitsubishi Materials Corporation Chaîne à couper
US5209216A (en) * 1989-09-22 1993-05-11 Mitsubishi Metal Corporation Chain cutter
US5029501A (en) * 1990-01-10 1991-07-09 Smith Wayne A Roughing cutter for saw chain
DE4237762C2 (de) * 1992-11-09 1997-12-18 Elektromechanik Aach Gmbh Sägewerkzeug

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US614003A (en) 1898-11-08 Band-saw

Also Published As

Publication number Publication date
DE59310303D1 (de) 2002-10-24
DE4237781A1 (de) 1994-05-11
EP0773084B1 (fr) 2002-09-18
US5988035A (en) 1999-11-23
BR9305717A (pt) 1996-12-31
ATE156057T1 (de) 1997-08-15
DE4237781C2 (de) 1995-08-10
EP0605770A3 (en) 1994-08-24
EP0773084A2 (fr) 1997-05-14
ATE224252T1 (de) 2002-10-15
WO1994011166A1 (fr) 1994-05-26
DE59307018D1 (de) 1997-09-04
DK0773084T3 (da) 2003-01-20
CA2127708A1 (fr) 1994-05-26
EP0605770B1 (fr) 1997-07-30
EP0773084A3 (fr) 1998-02-04

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