EP3197651B1 - Appareil de travail - Google Patents

Appareil de travail Download PDF

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Publication number
EP3197651B1
EP3197651B1 EP15766398.0A EP15766398A EP3197651B1 EP 3197651 B1 EP3197651 B1 EP 3197651B1 EP 15766398 A EP15766398 A EP 15766398A EP 3197651 B1 EP3197651 B1 EP 3197651B1
Authority
EP
European Patent Office
Prior art keywords
adjustment member
work apparatus
axis
rotation
tensioning
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.)
Active
Application number
EP15766398.0A
Other languages
German (de)
English (en)
Other versions
EP3197651A1 (fr
Inventor
Benjamin FREY
Helmut Zimmermann
Klaus-Martin Uhl
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.)
Andreas Stihl AG and Co KG
Original Assignee
Andreas Stihl AG and Co KG
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 Andreas Stihl AG and Co KG filed Critical Andreas Stihl AG and Co KG
Publication of EP3197651A1 publication Critical patent/EP3197651A1/fr
Application granted granted Critical
Publication of EP3197651B1 publication Critical patent/EP3197651B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B27B17/14—Arrangements for stretching the chain saw
    • 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

Definitions

  • the invention relates to an implement of the type specified in the preamble of claim 1.
  • a chainsaw is known with a saw chain which is driven to rotate on a guide rail and which can be tensioned via a tensioning device.
  • the tensioning device comprises a rotatably mounted adjusting screw with a screw head and a screw shaft.
  • the screw shaft acts via a threaded connection on a tendon attached to the guide rail.
  • a rotation of the adjusting screw causes a longitudinal displacement of the guide bar via the threaded connection, so that the saw chain is tensioned.
  • the operator has to apply a large amount of torque to the screw head. Due to the small diameter of the screw shaft, the transferable clamping forces are limited.
  • a chainsaw is known with a saw chain which is driven to rotate on a guide rail and which can be tensioned via a tensioning device.
  • the tensioning device comprises an adjusting screw mounted in the housing of the chainsaw and a clamping means screwed onto the adjusting screw.
  • the clamping means is firmly connected to the guide rail in the longitudinal direction of the guide rail.
  • the invention is based on the object of creating an implement of the generic type which has a simple structure and enables the transmission of comparatively high clamping forces.
  • the greatest distance between the threaded section of the adjusting element and the axis of rotation is at least as great as the greatest distance between the actuation contour and the axis of rotation. Due to the comparatively large outer circumference of the threaded section compared to the outer circumference of the actuating contour, large forces can be transmitted from the adjusting element to the tensioning element. At the same time, the structure is simple, since no additional components are required for the transmission of comparatively high forces.
  • the at least one depression in the actuating contour of the adjusting element advantageously interrupts the at least one thread turn of the adjusting element at least partially.
  • the actuating contour advantageously extends over a length section of the adjusting element, and the thread of the adjusting element extends over the entire length of this length section.
  • the overlapping of the actuating contour and the threaded section in the length section of the adjusting element makes it possible to achieve a short overall length of the adjusting element. This results in a compact design of the adjusting member with a short length. Due to the compact design of the adjusting element, the adjusting element is light, so that there is a weight saving of the implement.
  • the adjusting member preferably has a base body with a cylindrical outer surface, and the actuating contour and the threaded section each extend over the entire axial length of the base body of the adjusting member.
  • the adjusting member is very compact, and yet the actuating contour and the threaded section are designed to be as large as possible.
  • the actuating contour is expediently formed by at least one, preferably by at least three, in particular by at least four grooves.
  • the longitudinal direction of the at least one groove of the actuating contour expediently runs at an angle of at most approximately 40 ° with respect to the axis of rotation of the adjusting member.
  • the longitudinal direction of the at least one groove of the actuating contour runs parallel to the axis of rotation of the adjusting member.
  • the flanks of the groove expediently enclose an angle in a sectional plane perpendicular to the axis of rotation of the adjusting member which is from approximately 60 ° to approximately 120 °, in particular from approximately 70 ° to approximately 110 °.
  • the large angle allows a large opening on the circumference of the adjusting member so that the operator can easily grip between the flanks and rotate the adjusting member.
  • the implement advantageously comprises a sprocket cover on which the adjusting member is rotatably mounted, the adjusting member being supported on the sprocket cover in the direction of the axis of rotation.
  • the adjusting member is held in the sprocket cover, and the sprocket cover can be easily assembled together with the adjusting member. Because the adjusting member is mounted on the sprocket cover and not directly on the housing, the clamping force is diverted into the housing via the sprocket cover.
  • the sprocket cover has an opening through which the main body of the adjusting member protrudes at least partially to the outside of the sprocket cover.
  • the sprocket cover advantageously has a recessed grip on at least one side of the opening that runs parallel to the axis of rotation of the adjusting member. As a result, the adjusting member is easily accessible to an operator.
  • the opening can also allow dirt that is in the Clamping device has deposited, for example sawdust, emerge. The dirt is conveyed through the opening when the adjusting member is turned.
  • the adjusting member expediently has bearing journals on its end faces, which are held in receptacles in the sprocket cover.
  • the bearing journals are expediently clipped into receptacles in the sprocket cover.
  • the bearing journals can also be held in a bearing shell formed on a bearing cover, the bearing cover being attached to the sprocket cover.
  • the implement advantageously has an actuating element for fixing the sprocket cover on the housing of the implement, which is arranged adjacent to the tensioning device on the sprocket cover.
  • an operator can, for example, tension the chain, in particular the saw chain, with one hand by turning the adjusting member and, after reaching the desired saw chain tension, fix the sprocket cover on the housing of the implement with the other hand by adjusting the actuating element.
  • the clamping member is preferably designed in the form of a disk and carries the threaded section on a flat side, the threaded section being formed by subsections of adjacent threads.
  • the flat side carrying the threaded section advantageously has a step running transversely to the longitudinal center axis of the guide rail, the thickness of the tensioning member being reduced on the side of the step facing the fastening element.
  • the clamping member can be pushed into the area of the fastening element, so that a large clamping path of the clamping device results with a small overall width of the saw.
  • the working device has a compact and narrow design, particularly in the transverse direction, that is to say in the direction of the axis of rotation of the drive shaft.
  • the actuating element can be made comparatively large, so that an operator can actuate the actuating element easily and conveniently.
  • the outer diameter of the adjusting member is expediently at least 15 mm, in particular at least 20 mm. Due to the comparatively large outer diameter, a large force can be transmitted from the adjusting member to the clamping member via the threaded sections. The adjusting member can apply high clamping forces even with low strength. Furthermore, due to the comparatively large outer diameter of the adjusting element, a large thread diameter is made possible, whereby due to the large thread diameter, the stress on the thread flanks is lower compared to an adjusting element with a smaller outer diameter and smaller thread diameter with the same load, so that the threaded section of the adjusting element can be made of plastic, for example.
  • the clamping member advantageously has at least one pin which engages in an opening in the guide rail and thereby connects the clamping member to the guide rail in a form-fitting manner in the direction of the longitudinal center axis of the guide rail.
  • the threads of the threaded connection are expediently trapezoidal threads, the flank angles of the trapezoidal threads being from 0 ° to 60 °.
  • the threaded section of the adjusting element and the threaded section of the clamping element are advantageously made of plastic, in particular of fiber-reinforced plastic.
  • the weight of the adjusting member and the weight of the tensioning member are comparatively low, so that the total weight of the implement is reduced.
  • the adjusting element and the tensioning element are expediently made entirely of plastic, in particular of fiber-reinforced plastic.
  • the implement is expediently a chainsaw. It can also be useful that the implement is a stone cutter.
  • Fig. 1 shows a motor saw 1 as an exemplary embodiment of a working device.
  • the motor saw 1 comprises a housing 6 in which a drive motor 52, for example an internal combustion engine or an electric motor, is arranged. Is the drive motor 52 as Designed as an electric motor, the electric motor can draw its energy from a battery (not shown).
  • the drive motor 52 drives a chain 5 via a drive shaft 2 and a drive pinion 3.
  • the chain 5 is designed as a saw chain.
  • a sprocket cover 10 is fixed to the housing 6 in the area of the drive pinion 3.
  • the chainsaw 1 comprises a guide rail 4. In operation, the chain 5 revolves on the guide rail 4.
  • handles namely a rear handle 7 and a handle tube 8, are fixed on the housing 6.
  • the chainsaw 1 has an in Fig. 2
  • the tensioning device 15 comprises a tensioning element 16 and an adjusting element 17.
  • the guide rail 4 is moved relative to the housing 6 in the direction of a longitudinal center axis 18 ( Fig. 1 ) the guide rail 4 moves.
  • the clamping member 16 engages positively in two circular openings 14 arranged on the guide rail 4, so that forces can be transmitted from the clamping member 16 to the guide rail 4, in particular in the direction of the longitudinal center axis 18 of the guide rail 4.
  • the guide rail 4 has a longitudinal slot 13.
  • a bolt 9 is fixed on the housing 6 and engages in the longitudinal slot 13.
  • the longitudinal slot 13 enables the movement of the guide rail 4 in the direction of the longitudinal center axis 18 of the guide rail 4.
  • An actuating element 11, which comprises a nut 12, can be screwed onto the bolt 9.
  • the sprocket cover 10 covers the tensioning device 15 and the drive pinion 3.
  • the sprocket cover 10 is via the actuating element 11 screwed onto the bolt 9 on the in Fig. 3 housing 6 shown schematically held.
  • the guide rail 4 is held clamped between the sprocket cover 10 and the housing 6 by the actuating element 11.
  • the adjusting member 17 is mounted in the sprocket cover 10 so as to be rotatable about an axis of rotation 21.
  • the adjusting member 17 is connected to the clamping member 16 via a threaded connection 20. Due to the threaded connection 20, a rotation of the adjusting member 17 about its axis of rotation 21 causes the clamping member 16 to move in the direction of the longitudinal center axis 18 of the guide rail 4.
  • the adjusting member 17 has a threaded section 22 with four threads 23 on its outer circumference.
  • the clamping member 16 has a threaded section 24.
  • the threaded portion 22 of the adjusting member 17 is provided for engagement in the threaded portion 24 of the clamping member 16, whereby the threaded connection 20 is formed.
  • the actuating element 11 is tightened onto the bolt 9 with the nut 12 injected into the actuating element 11. As a result, the guide rail 4 is clamped between the bolt 9 and nut 12.
  • the sprocket cover 10 has one in the Fig. 5 and 8th Opening 25 shown. That in the Figures 4 and 5
  • the adjusting member 17 shown protrudes at least partially through the opening 25 to an outside 26 of the sprocket cover 10, so that an operator can rotate the adjusting member 17 from the outside. So that the operator can easily rotate the adjusting member 17, the sprocket cover 10 has a recessed grip 28 which extends on the sides 27 of the opening 25 running parallel to the axis of rotation 21 of the adjusting member 17.
  • an elevation 29 formed in one piece with the sprocket cover 10 is provided on the sprocket cover 10, in the area of the opening 25, an elevation 29 formed in one piece with the sprocket cover 10 is provided.
  • the elevation 29 arches towards the outside 26 of the sprocket cover 10 and ends approximately flush with the adjusting member 17 in the area of the adjusting member 17.
  • the elevation 29 and the adjusting member 17 are at least partially in one plane.
  • the clamping member 16 has two pins 30. When installed, the pins 30 engage in the openings 14 of the guide rail 4 ( Fig. 2 ) and thereby connect the tendon 16 in the direction of the longitudinal center axis 18 ( Fig. 1 ) of the guide rail 4 in a form-fitting manner with the guide rail 4.
  • Guide elements 31 are provided on the clamping member 16. When the guide rail 4 is mounted, the hook-shaped guide elements 31 protrude into the longitudinal slot 13 of the guide rail 4 ( Fig. 2 ) and rest on the side of the guide rail 4 facing the drive pinion 3 on the guide rail 4.
  • a wall 33 is arranged on an inner side 32 of the sprocket cover 10.
  • the wall 33 delimits a channel in which the saw chain ( Fig. 1 ) runs to the outside. This largely prevents sawdust from getting stuck in the sprocket cover 7.
  • receptacles 34 for the rotatable mounting of the adjusting member 17 ( Fig. 3 ) intended.
  • Each of the receptacles 34 is approximately semicircular.
  • locking lugs 36 are provided on the receptacles 34 so that the cylindrical bearing journals 35 of the adjusting member 17 ( Fig. 3 ) can be clipped into the receptacles 34 of the sprocket cover 10.
  • a bearing cover which has receptacles 34 for the latching lugs 36 and which is fastened to the sprocket cover 10, for example screwed onto the sprocket cover 10, can also be provided.
  • the adjusting member 17 has an actuating contour 39.
  • An operator can rotate the adjusting member 17 on the actuating contour 39.
  • the actuating contour 39 comprises four depressions which interrupt the threads 23.
  • the depressions are designed as grooves 41.
  • Each of the grooves 41 is formed by two flanks 42 ( Figures 12 and 13 ) limited.
  • the flanks 42 of the grooves 41 each enclose an angle ⁇ , which in the exemplary embodiment is approximately 90 °.
  • the angle ⁇ is advantageously in a range from approximately 60 ° to approximately 120 °, in particular from approximately 70 ° to approximately 110 °.
  • the longitudinal direction of the groove 41 runs parallel to the axis of rotation 21 ( Fig. 10 ).
  • the longitudinal direction of the at least one groove 41 in a side view of the adjusting member 17 can run at an angle with respect to the axis of rotation 21 of the adjusting member 17, the angle advantageously being at most 40 °.
  • the adjusting member 17 has a base body 44 with a cylindrical outer surface 45, the cylindrical outer surface 45 being interrupted by the grooves 41 and the threads 23.
  • the actuating contour 39 extends over the entire axial length of the cylindrical base body 44 of the adjusting member 17.
  • the threaded section 22 of the adjusting member 17 also extends over the entire axial length of the base body 44 of the adjusting member 17.
  • the Grooves 41 and the threads 23 extend only over a portion of the axial length of the base body 44 and advantageously only partially overlap in the axial direction.
  • the actuation contour 39 has a greatest distance a to the axis of rotation 21, which in the exemplary embodiment is exactly as great as the greatest distance b of the outer circumference of the threaded section 22 of the adjusting member 17 to the axis of rotation 21.
  • the outer circumference of the threaded section 22 of the adjusting member 17 is advantageously at least 15 mm, in particular at least 20 mm.
  • the thread of the threaded section 22 is designed as a trapezoidal thread 46, the flank angle ⁇ of which is at most 60 °.
  • the thread of the threaded section 24 of the tendon 16 is also designed as a trapezoidal thread 47, the flank angle ⁇ ( Fig. 14 ) is at most 60 °.
  • the threaded section 22 of the adjusting member 17 ( Figures 10 to 13 ) and the threaded section 24 of the tendon 16 ( Figures 14 to 16 ) are made of plastic, especially fiber-reinforced plastic.
  • the adjusting member 17 and the clamping member 16 are made entirely of plastic.
  • the adjusting member 17 has a central bore 37.
  • the axis of the central bore 37 corresponds to the axis of rotation 21.
  • the central bore 37 penetrates the adjusting member 17 completely and serves as a weight reduction bore.
  • several, namely four, channels 38 are formed, offset radially outward, which run parallel to the central bore 37 and completely penetrate the adjusting member 17.
  • the channels 38 are also provided for weight reduction.
  • the clamping member 16 is flat. On a flat side 48, the clamping member 16 carries the threaded section 24. The threaded section 24 is not formed by complete threads, but by subsections of adjacent threads.
  • the tension member 16 has on its flat side 48 a transverse to the longitudinal center axis 18 of the guide rail 4 ( Fig. 3 ) and step 51 running transversely to the plane of the guide rail 4.
  • the thickness d of the tendon 16 in a first portion 49 of the tendon 16 is smaller than the thickness e of the tendon 16 in a second portion 50 of the tendon 16.
  • the thicknesses d and e are measured perpendicular to the plane of the guide rail 4.
  • the sub-sections of the thread turns of the thread section 24 in the first sub-area 49 are thus flatter sections of a complete thread turn than that Sub-sections of the threads in the second sub-area 50.
  • the sub-area 49 with reduced thickness d is the actuating element 11 ( Fig. 2 ) facing arranged like Fig. 3 shows.
  • the clamping member 16 On the side facing away from the flat side 48, the clamping member 16 carries the pins 30 and the guide elements 31. How Fig. 17 shows, openings 40 are formed in sub-area 49 between adjacent threads. As a result, a very small thickness d can be achieved. At the same time, when the adjusting member 17 is rotated, dirt can be conveyed out of the threads of the clamping member 16.
  • the clamping member 16 is a separate component. However, it can also be expedient for the clamping member 16 to be designed as part of the guide rail 4.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Claims (14)

  1. Appareil de travail doté d'un rail de guidage (4) sur lequel une chaîne (5) est entraînée en rotation, l'appareil de travail comprenant un dispositif de tension (15) pour la chaîne (5), le dispositif de tension (15) comprenant un organe de tension (16) qui agit sur le rail de guidage (4) dans la direction d'un axe médian longitudinal (18) du rail de guidage (4), et le dispositif de tension (15) comprenant un organe de réglage (17) monté rotatif, lequel est relié à l'organe de tension (16) par le biais d'une liaison filetée (20), une rotation de l'organe de réglage (17) autour de son axe de rotation (21) provoquant un déplacement de l'organe de tension (16) dans la direction de l'axe médian longitudinal (18) du rail de guidage (4), l'organe de réglage (17) comprenant sur sa périphérie extérieure une partie filetée (22) dotée d'au moins une spire (23) qui est destinée à venir en prise avec au moins une partie filetée (24) de l'organe de tension (16), et l'organe de réglage (17) comprenant un contour d'actionnement (39) pour la rotation de l'organe de réglage (17) par un utilisateur, lequel contour comporte au moins un évidement, la plus grande distance (b) de la partie filetée (22) de l'organe de réglage (17) à l'axe de rotation (21) étant au moins aussi grande que la plus grande distance (a) du contour d'actionnement (39) à l'axe de rotation (21),
    caractérisé en ce qu'un couvercle de pignon de chaîne (10) de l'appareil de travail comprend une ouverture (25), et l'organe de réglage (17) faisant saillie au moins partiellement à travers l'ouverture (25) jusqu'à un côté extérieur du couvercle de pignon de chaîne (10), de sorte qu'un utilisateur puisse faire tourner l'organe de réglage (17) depuis l'extérieur au niveau du contour d'actionnement (39).
  2. Appareil de travail selon la revendication 1,
    caractérisé en ce que l'au moins un évidement du contour d'actionnement (39) de l'organe de réglage (17) interrompt au moins partiellement l'au moins une spire (23) de l'organe de réglage (17).
  3. Appareil de travail selon la revendication 1 ou 2,
    caractérisé en ce que le contour d'actionnement (39) s'étend sur une partie longitudinale (43) de l'organe de réglage (17), et en ce que la partie filetée (22) de l'organe de réglage (17) s'étend sur toute la longueur de cette partie longitudinale (43).
  4. Appareil de travail selon la revendication 3,
    caractérisé en ce que l'organe de réglage (17) présente un corps de base (44) doté d'une surface extérieure cylindrique (45), et en ce que le contour d'actionnement (39) et la partie filetée (22) s'étendent respectivement sur toute la longueur axiale du corps de base (44) de l'organe de réglage (17).
  5. Appareil de travail selon l'une des revendications 1 à 4,
    caractérisé en ce que le contour d'actionnement (39) est formé par au moins une rainure (41).
  6. Appareil de travail selon la revendication 5,
    caractérisé en ce que la direction longitudinale de l'au moins une rainure (41) du contour d'actionnement (39) s'étend suivant un angle d'approximativement 40° au maximum par rapport à l'axe de rotation (21) de l'organe de réglage (17).
  7. Appareil de travail selon la revendication 5 ou 6,
    caractérisé en ce que les flancs (42) de la rainure (41), dans un plan de coupe perpendiculaire à l'axe de rotation (21) de l'organe de réglage (17), forment un angle (a) qui vaut de 60° approximativement à 120° approximativement.
  8. Appareil de travail selon l'une des revendications 1 à 7,
    caractérisé en ce que l'organe de réglage (17) est monté rotatif sur le couvercle de pignon de chaîne (10), l'organe de réglage (17) étant supporté sur le couvercle de pignon de chaîne (10) dans la direction de l'axe de rotation (21).
  9. Appareil de travail selon l'une des revendications 1 à 8,
    caractérisé en ce que le couvercle de pignon de chaîne (10) comprend une cavité de préhension (28) sur au moins un côté (27) de l'ouverture (25) s'étendant parallèlement à l'axe de rotation (21) de l'organe de réglage (17).
  10. Appareil de travail selon l'une des revendications 1 à 9,
    caractérisé en ce que l'organe de réglage (17) comprend des tourillons de palier (35) sur ses côtés frontaux, lesquels tourillons sont retenus dans des logements (34) du couvercle de pignon de chaîne (10).
  11. Appareil de travail selon l'une des revendications 1 à 10,
    caractérisé en ce que l'appareil de travail comprend un élément d'actionnement (11) pour la fixation du couvercle de pignon de chaîne (10) sur le boîtier (6) de l'appareil de travail, lequel élément d'actionnement est disposé sur le couvercle de pignon de chaîne (10) de manière adjacente au dispositif de tension (15).
  12. Appareil de travail selon la revendication 11,
    caractérisé en ce que l'organe de tension (16) est réalisé en forme de disque et supporte la partie filetée (24) sur un côté plat (48), la partie filetée (24) étant formée par des sous-parties de spires adjacentes, et en ce que le côté plat (48) supportant la partie filetée (24) comprend un gradin (51) s'étendant transversalement à l'axe médian longitudinal (18) du rail de guidage (4), l'épaisseur de l'organe de tension (16) étant réduite sur le côté du gradin (51) tourné vers l'élément d'actionnement (11).
  13. Appareil de travail selon l'une des revendications 1 à 12,
    caractérisé en ce que le diamètre extérieur de l'organe de réglage (17) vaut au moins 15 mm.
  14. Appareil de travail selon l'une des revendications 1 à 13,
    caractérisé en ce que l'organe de tension (16) comprend au moins un tourillon (30) qui vient en prise dans une ouverture (14) du rail de guidage (4) et relie ainsi l'organe de tension (16) au rail de guidage (4) par complémentarité de forme dans la direction de l'axe médian longitudinal (18) du rail de guidage (4).
EP15766398.0A 2014-09-26 2015-09-12 Appareil de travail Active EP3197651B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014014275.2A DE102014014275A1 (de) 2014-09-26 2014-09-26 Arbeitsgerät
PCT/EP2015/001833 WO2016045773A1 (fr) 2014-09-26 2015-09-12 Appareil de travail

Publications (2)

Publication Number Publication Date
EP3197651A1 EP3197651A1 (fr) 2017-08-02
EP3197651B1 true EP3197651B1 (fr) 2021-11-03

Family

ID=54148456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15766398.0A Active EP3197651B1 (fr) 2014-09-26 2015-09-12 Appareil de travail

Country Status (5)

Country Link
US (1) US10144146B2 (fr)
EP (1) EP3197651B1 (fr)
CN (1) CN107000241B (fr)
DE (1) DE102014014275A1 (fr)
WO (1) WO2016045773A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11673287B2 (en) * 2021-11-10 2023-06-13 Techtronic Cordless Gp Systems and methods of chainsaw tensioning

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382898A (en) * 1966-05-16 1968-05-14 Charles M. Walker Chain saw attachment
SE469825B (sv) * 1990-03-28 1993-09-27 Electrolux Ab Kedjespännanordning på motorsåg
SE511283C2 (sv) * 1997-06-04 1999-09-06 Sandvik Ab Sträckmekanism och sågsvärd för kedjesågar
US6049986A (en) * 1997-10-02 2000-04-18 Blount, Inc. Chain saw guide bar equipped with chain tensioner
DE19931249A1 (de) * 1999-07-07 2001-01-11 Bosch Gmbh Robert Kettensäge
JP2002036203A (ja) 2000-07-24 2002-02-05 Ryobi Ltd ソーチェーン張り力調整装置
DE20118322U1 (de) * 2001-11-12 2002-01-17 Jenn Feng Ind Co Vorrichtung zur Einstellung der Spannung einer Kettensäge
SE0300611D0 (sv) * 2003-03-06 2003-03-06 Electrolux Ab Chain saw tensioning device
DE102004022170A1 (de) 2004-05-05 2006-01-12 Hans Einhell Ag Kettensäge
JP5314496B2 (ja) * 2009-05-20 2013-10-16 株式会社マキタ チェーンソー
CN204195612U (zh) * 2014-09-19 2015-03-11 国家电网公司 一种新型快速调节开口活动扳手

Also Published As

Publication number Publication date
US10144146B2 (en) 2018-12-04
WO2016045773A1 (fr) 2016-03-31
DE102014014275A1 (de) 2016-03-31
CN107000241B (zh) 2020-09-01
CN107000241A (zh) 2017-08-01
US20170266834A1 (en) 2017-09-21
EP3197651A1 (fr) 2017-08-02

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