EP0899070B1 - Motorkettensäge mit einem zwischen dem Gehäuse und einem Spannteil geklemmt gehaltenen Sägeschwert - Google Patents
Motorkettensäge mit einem zwischen dem Gehäuse und einem Spannteil geklemmt gehaltenen Sägeschwert Download PDFInfo
- Publication number
- EP0899070B1 EP0899070B1 EP19980114532 EP98114532A EP0899070B1 EP 0899070 B1 EP0899070 B1 EP 0899070B1 EP 19980114532 EP19980114532 EP 19980114532 EP 98114532 A EP98114532 A EP 98114532A EP 0899070 B1 EP0899070 B1 EP 0899070B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- saw
- chain
- housing
- clamping part
- guide bar
- 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
Images
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
- B27B17/00—Chain saws; Equipment therefor
- B27B17/02—Chain saws equipped with guide bar
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/707—By endless band or chain knife
- Y10T83/7226—With means to guard the tension
- Y10T83/7239—With means to vary distance between pulley or sprocket axes
Definitions
- the invention relates to a motor chain saw with a in a housing arranged drive motor, which revolves on a saw blade Saw chain drives, with the PSDGt at one end transverse to its plane between the housing and a clamping part braced on Housing is held (see, for example, US-A-4 563 817).
- a motor chain saw is for example from DE 38 43 459 A1 known.
- a motor chain saw is described in the one arranged in a housing drive motor via a sprocket driving a saw chain running on a saw blade.
- the saw sword is at one end across its plane between the case and one Clamping part held clamped to the housing.
- For clamping the saw chain is the saw blade with dissolved clamping part in the longitudinal direction by means of a Chain tensioning device adjustable.
- the chain tensioner is through an actuating screw adjusted, with a bolt in the Sgeecht engages and is moved along a slot in the crankcase.
- To Successful adjustment of the chain tension becomes the tensioning device tightened, with the shegehist between the housing and the Clamping part is clamped.
- the facing surfaces between the SAgehistende and the housing or the clamping part are Reibwerterièrend treated, thus higher forces on the clamping can act without causing an adjustment of the shegeglotes.
- the task is accomplished by a motor chain saw with the characteristics of the Claim 1 solved.
- the motor chain saw comprises a housing in which the Drive motor is arranged.
- the drive motor drives one on a saw bar circulating saw chain.
- the saw sword is at its the engine facing end transverse to its plane between the housing and a Clamping part held clamped to the housing.
- For clamping the saw chain is The saw blade slidable in the longitudinal direction with dissolved clamping part.
- the Saw blade lies on one side of the housing and on the other side on the clamping part.
- blocking means which control the displacement of the SAgeattes in the longitudinal direction with dissolved clamping part only in the direction of Housing away, so to tension the chain, allow. To the housing is a shift is not possible.
- the blocking means inhibit the displacement in this direction.
- latching plates are used, for example can be arranged between PSDgehist and clamping part.
- One Lock plate is firmly connected to the shegehist and is in contact with a correspondingly shaped latching plate which is fixed to the clamping part.
- the teeth of the locking plate are sawtooth-shaped arranged so that a Shift only in the tensioning direction of the chain is possible. The postponement in the other direction is only after almost complete release of the Clamping possible, so that the teeth of the corresponding formed Locking plates can no longer come into contact with each other.
- the clamping part is designed as Kettenradtik.
- the saw blade and the locking means with dissolved clamping part holds under elastic bias against each other.
- elastic Element may, for example, act the chain guide plate. Will that be Easily released clamping part, so the elastic force of the elastic element acts such that the saw blade against the opposite part of the chainsaw, So either against the case or against the clamping part, pressed becomes.
- the locking means held by the elastic force in contact become.
- the latching plate 4 a is fixed to the Saw blade 2 connected while the locking plate 4b fixed to the clamping part 3 is connected or by the two bolts 6 in a constant position is held to the clamping part.
- the saw blade 2 is in the longitudinal direction L. displaceable, wherein the locking plates act in such a way that only one shift in the direction of the housing 1 away, so in the figure to the right, is possible while shifting in the opposite direction is prevented by the teeth of the locking plates 4a, 4b.
- the chain guide plate is the fifth arranged, which is elastic.
- the locking plate 5 is an elastic Pretension on the shegehist 2 exerts, so that the two locking plates 4a and 4b remain in contact despite the loosening clamp 3.
- the saw blade 2 can now be moved to the right, it always by the catches slightly raised against the chain guide plate 3 and from Chain guide plate is pressed into the next notch. A movement to the left is not possible. This would have the two nuts 7 so far be solved that the chain guide plate 5 no elastic force more can exert the saw blade 2 and the locking plates 4a and 4b no longer in Standing in contact.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Description
Claims (4)
- Motorkettensäge mit einem in einem Gehäuse (1) angeordneten Antriebsmotor, der eine auf einem Sägeschwert (2) umlaufende Sägekette antreibt, wobei das Sägeschwert (2) am einen Ende quer zu seiner Ebene zwischen dem Gehäuse (1) und einem Spannteil (3) verspannt am Gehäuse (1) gehalten ist und zum Spannen der Sägekette bei gelöstem Spannteil (3) in Längsrichtung (L) verschiebbar ist, zwischen dem Sägeschwert (2) und Gehäuse (1) und/oder zwischen Sägeschwert (2) und Spannteil (3) sind Sperrmittel (4a, 4b) angeordnet, die die Verschiebung des Sägeschwertes (2) in Spannrichtung erlauben, in Entspannrichtung der Kette aber sperren, dadurch gekennzeichnet, dass zwischen Gehäuse (1) und Sägeschwert (2) und/oder Sägeschwert (2) und Spannteil (3) ein elastisches Element (5) angeordnet ist, das bei gelöstem Spannteil (3) das Sägeschwert (2) und die Sperrmittel (4a, 4b) unter elastischer Vorspannung gegeneinander hält.
- Motorkettensäge nach Anspruch 1, dadurch gekennzeichnet, dass die Sperrmittel Rastbleche (4a, 4b) sind.
- Motorkettensäge nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Spannteil als Kettenradschutz (3) ausgebildet ist.
- Motorkettensäge nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das elastische Element (5) das Kettenführungsblech ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997137886 DE19737886C1 (de) | 1997-08-29 | 1997-08-29 | Motorkettensäge mit einem zwischen dem Gehäuse und einem Spannteil geklemmt gehaltenen Sägeschwert |
DE19737886 | 1997-08-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0899070A2 EP0899070A2 (de) | 1999-03-03 |
EP0899070A3 EP0899070A3 (de) | 2002-03-06 |
EP0899070B1 true EP0899070B1 (de) | 2005-07-20 |
Family
ID=7840674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980114532 Expired - Lifetime EP0899070B1 (de) | 1997-08-29 | 1998-08-03 | Motorkettensäge mit einem zwischen dem Gehäuse und einem Spannteil geklemmt gehaltenen Sägeschwert |
Country Status (3)
Country | Link |
---|---|
US (1) | US6473975B1 (de) |
EP (1) | EP0899070B1 (de) |
DE (1) | DE19737886C1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE512962C2 (sv) * | 1998-02-20 | 2000-06-12 | Sisu Logging Ab | Hydrauliskt sågkedjestäckande organ |
US6560879B2 (en) | 2001-08-02 | 2003-05-13 | Wci Outdoor Products, Inc. | Chain saw adjuster |
US7082689B2 (en) * | 2002-10-11 | 2006-08-01 | Black & Decker Inc. | Keyless shoe lock for reciprocating saw |
US6877233B1 (en) | 2004-01-08 | 2005-04-12 | Electrolux Home Products, Inc. | Chain saw adjuster mechanism with locking teeth |
US7434502B2 (en) * | 2004-07-21 | 2008-10-14 | Husqvarna Outdoor Products Inc. | Bar knob with cam-operated locking mechanism |
CN102990159B (zh) * | 2011-09-16 | 2015-06-10 | 南京德朔实业有限公司 | 链锯的链条张紧锁定装置 |
JP5910858B2 (ja) * | 2012-01-16 | 2016-04-27 | 日立工機株式会社 | チェンソー |
SE536987C2 (sv) | 2012-05-03 | 2014-11-25 | Jps Teknik Ab | Förfarande och arrangemang vid en motorsåg |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3636995A (en) * | 1970-07-02 | 1972-01-25 | Textron Inc | Tensioner for saw chain |
US4117594A (en) * | 1977-10-02 | 1978-10-03 | Textron Inc. | Guide bar mount for chain saw |
US4563817A (en) * | 1983-07-07 | 1986-01-14 | Leighton Dawson N | Chain saw slack adjuster |
SU1329966A1 (ru) * | 1985-09-03 | 1987-08-15 | А. В. Козлов | Устройство дл нат жени пильной цепи мотопилы |
DE3640162A1 (de) * | 1986-11-25 | 1988-05-26 | Franz Rebhan | Gehaeuse fuer eine motorkettensaege |
SE460714B (sv) * | 1988-03-04 | 1989-11-13 | Electrolux Ab | Spaennanordning |
DE3843459A1 (de) | 1988-12-23 | 1990-06-28 | Stihl Maschf Andreas | Motorkettensaege mit einem zwischen dem gehaeuse und einem spannteil geklemmt gehaltenen saegeschwert |
SE469825B (sv) * | 1990-03-28 | 1993-09-27 | Electrolux Ab | Kedjespännanordning på motorsåg |
US5144751A (en) * | 1991-08-09 | 1992-09-08 | Blount, Inc. | Method and apparatus for controlling saw chain tension |
US5491899A (en) * | 1992-06-25 | 1996-02-20 | Stihl Andreas | Tensioning arrangement for a saw chain |
JP3138903B2 (ja) * | 1994-07-15 | 2001-02-26 | 株式会社丸山製作所 | 枝打機 |
-
1997
- 1997-08-29 DE DE1997137886 patent/DE19737886C1/de not_active Expired - Fee Related
-
1998
- 1998-08-03 EP EP19980114532 patent/EP0899070B1/de not_active Expired - Lifetime
- 1998-08-27 US US09/141,730 patent/US6473975B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0899070A3 (de) | 2002-03-06 |
DE19737886C1 (de) | 1998-12-24 |
US6473975B1 (en) | 2002-11-05 |
EP0899070A2 (de) | 1999-03-03 |
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