EP3546162A1 - Scie à chaîne - Google Patents

Scie à chaîne Download PDF

Info

Publication number
EP3546162A1
EP3546162A1 EP19162202.6A EP19162202A EP3546162A1 EP 3546162 A1 EP3546162 A1 EP 3546162A1 EP 19162202 A EP19162202 A EP 19162202A EP 3546162 A1 EP3546162 A1 EP 3546162A1
Authority
EP
European Patent Office
Prior art keywords
housing
handle
handguard
chain
saw
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
EP19162202.6A
Other languages
German (de)
English (en)
Other versions
EP3546162B1 (fr
Inventor
Oskar Bergquist
Marcus Pettersson
Per-Anders BÜLOW
Urban JARMESTA
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.)
Husqvarna AB
Original Assignee
Husqvarna AB
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 Husqvarna AB filed Critical Husqvarna AB
Publication of EP3546162A1 publication Critical patent/EP3546162A1/fr
Application granted granted Critical
Publication of EP3546162B1 publication Critical patent/EP3546162B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
    • B27B17/083—Devices for arresting movement of the saw chain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/003—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for chain saws
    • 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
    • B27B17/0083—Attachments for guiding or supporting chain saws during operation

Definitions

  • the present disclosure relates to a top-handle chain saw comprising a housing, a guide bar projecting from the housing in a front direction and carrying a saw chain, a top handle on the housing, extending from a rear tower on the housing to a front tower on the housing, a side handle, extending laterally from the top handle, and a handguard, having a proximal end pivotably connected to the housing and a distal end extending into a space in between the side handle and the guide bar and being moveable between a forward position where a saw chain brake is activated and a backward position where the saw chain brake is released.
  • Top-handle chain saws of this type may be useful typically for arborists cutting branches while climbing trees, but also under other circumstances where a chain saw with a compact grip is desired.
  • One object of the present disclosure is therefore to obtain a top handle chain saw that makes work under difficult conditions easier.
  • top-handle chain saw as defined in claim 1. More particularly, in a top-handle chain saw of the initially mentioned type, the handguard is devised such that its distal end in the backward position is located further to the rear, away from the guide bar, than the front tower to which the top handle is connected. By means of this arrangement, the handguard can be drawn further to the rear, and therefore will obscure the user's view of the guide bar to a lesser extent. Also, the chain saw is less hindered by other branches etc. in cramped spaces. This makes operation of the chain saw easier under difficult working conditions.
  • the handguard may be pivotably connected to the housing at a connection point below the front tower. This makes the connection point protected by the front tower to some extent.
  • the handguard may further be pivotably connected to the housing at a front part of the front tower.
  • the handguard may be provided with a cut-out to accommodate the front tower. This allows the handguard to be moved further back.
  • the chain saw may be battery driven.
  • the present disclosure relates to a top-handle type chain saw.
  • a chain saw 1 according to known art is illustrated in fig 1 .
  • the chain saw 1 includes a housing 3 and a guide bar 5, projecting from the housing 3 and carrying a chain 7.
  • the chain 7 is driven by a motor (not shown) in the housing 3.
  • the bottom portion of the chain saw is defined as where the chain 7 is driven towards the housing 3 (indicated with an arrow in fig 1 ), as this is the normal use.
  • the front direction of the chain saw is defined as the direction in which the guide bar 5 extends from the housing 3.
  • the chain saw is of a top-handle type, meaning that it has a handle 9 located at the top portion of the housing 3 and extending more or less in the direction of the guide bar 5.
  • This is in contrast to rear-handle type chain saws, where the corresponding handle is instead located at the rear of the housing at a surface facing away from the guide bar 5.
  • Such saws are usually used for heavy-duty forestry work, i.e. cutting down trees.
  • Top-handle saws are usually lighter and used e.g. by arborists that trim branches, occasionally while climbing a tree. Such work requires a very compact chain saw, and therefore the handle is moved further to the front and to the top of the housing.
  • the top handle 9 thus spans between a front 11 and a rear 13 tower, which rise from the housing 3.
  • a side handle 15 is arranged to extend from the front part of the housing 3, approximately in a direction perpendicular to the plane of the guide bar 5.
  • the side handle 15 as illustrated may be curved such that its other end connects to the lower portion of the housing 3.
  • a handguard 17 is provided for safety purposes. If the saw makes a kickback caused by the movement of the chain 7 in relation to an object being sawed, a chain brake is automatically activated that quickly stops the movement of the chain 7 to protect the user. This chain brake may also be activated by the user by moving the handguard 17 forward to a locking position. The brake may later be released by moving the handguard 17 to the backward position again.
  • figs 2 and 3 show a side view of a chain saw where the handguard 17 is in the locking forward position braking the chain, and fig 3 shows the corresponding view where the handguard is moved to the releasing backward position.
  • Fig 2 shows the top-handle chain saw comprising a housing 3, a guide bar 5 projecting from the housing in a front direction and being capable of carrying a saw chain.
  • a top handle 9 is provided on the upper side of the housing 3, extending from a rear tower 13 to a front tower 11 on the housing 3. In the illustrated case, the rear tower 13 forms a part of a battery compartment, the chain saw being driven by an electric motor.
  • a side handle 15, extends laterally from the top handle 9, such that the user can hold the top handle 9 in his right hand and the side handle 15 in his left hand. The held part of the side handle 15 and the top handle 9 extend in approximately perpendicular directions, such that the user can precisely control the movement of the guide bar 5.
  • a handguard 17 is provided having a proximal end 18 pivotably connected to the housing 3 and a distal end 20 extending into a space in between the side handle 15 and the guide bar 5.
  • the handguard 17 is moveable between a forward position shown in fig 2 , where a saw chain brake is activated, and a backward position shown in fig 3 where the saw chain brake is released.
  • the handguard 17 can thus be moved forward by the user to brake the saw chain, as is well known per se.
  • the handguard 17 is devised in such a way that its distal end 20 can be moved past the end of the handle 9 or front tower 11 to reach the said backward position.
  • the front end of the front tower 11 is visible in front of the handguard 17.
  • the front end of the front tower 11 thus projects further towards the guide bar than the hand guard, in front of where the side handle 15 is located.
  • the front side of the handguard 17 is located further to the rear, away from the guide bar 5, than is the front tower 11 to which the top handle 9 is connected, at a location in front of the side handle 15.
  • the distal end 20 of the handguard 17 may be located behind the front end of the front tower 11.
  • the handguard 17 By allowing the handguard to pass the front tower 11 or top handle 9, the handguard 17 can be pulled back further to reach the release position. This means that the handguard 17 will obstruct the user's view of the guide bar 5 to a lesser extent during use, which is advantageous.
  • the handguard 17 may be connected pivotably to the housing 3 at a connection point 22 below the front tower 11 as seen from the top of the chain saw.
  • Fig 5 shows the handguard isolated.
  • the handguard 17 is provided with a cut-out 21 to accommodate the top handle 9 and/or the front tower 11 to which the top handle 9 is connected.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
EP19162202.6A 2018-03-29 2019-03-12 Scie à chaîne Active EP3546162B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1850362A SE542656C2 (en) 2018-03-29 2018-03-29 Top-handle chainsaw with handguard

Publications (2)

Publication Number Publication Date
EP3546162A1 true EP3546162A1 (fr) 2019-10-02
EP3546162B1 EP3546162B1 (fr) 2023-04-12

Family

ID=65801865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19162202.6A Active EP3546162B1 (fr) 2018-03-29 2019-03-12 Scie à chaîne

Country Status (2)

Country Link
EP (1) EP3546162B1 (fr)
SE (1) SE542656C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12064894B2 (en) 2020-09-04 2024-08-20 Milwaukee Electric Tool Corporation Chainsaw

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010134395A1 (fr) * 2009-05-20 2010-11-25 株式会社マキタ Tronçonneuse
EP2305439A2 (fr) * 2009-10-05 2011-04-06 Makita Corporation Outil électrique
EP2432625A1 (fr) * 2009-04-08 2012-03-28 Husqvarna AB Outils portables alimentés par pile
US20140047722A1 (en) * 2012-08-15 2014-02-20 Hitachi Koki Co., Ltd. Chain saw

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2432625A1 (fr) * 2009-04-08 2012-03-28 Husqvarna AB Outils portables alimentés par pile
WO2010134395A1 (fr) * 2009-05-20 2010-11-25 株式会社マキタ Tronçonneuse
EP2305439A2 (fr) * 2009-10-05 2011-04-06 Makita Corporation Outil électrique
US20140047722A1 (en) * 2012-08-15 2014-02-20 Hitachi Koki Co., Ltd. Chain saw

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12064894B2 (en) 2020-09-04 2024-08-20 Milwaukee Electric Tool Corporation Chainsaw

Also Published As

Publication number Publication date
SE1850362A1 (en) 2019-09-30
SE542656C2 (en) 2020-06-23
EP3546162B1 (fr) 2023-04-12

Similar Documents

Publication Publication Date Title
US4272889A (en) Portable saw
US6044562A (en) Safety interlocking blade release mechanism for hand held cutting tools
US3949817A (en) Chain saw extender
US3664390A (en) Safety means for power-driven chain saws
EP3518650B1 (fr) Outil électrique démontable
EP1787777A3 (fr) Capot de protection modulaire pour scie motorisée
US3384136A (en) Chain saw guard
US3059673A (en) Safety guard for chain saw
US7989718B1 (en) Power control engagement device for a power tool
EP2779820B1 (fr) Ensemble de fixation de cordon d'un outil électrique ayant un système de détente de charge
EP3546162B1 (fr) Scie à chaîne
US2879814A (en) Attachment for converting a portable circular saw to a chain saw
CN112847667A (zh) 手持式作业机器
SE457938B (sv) Roejningsredskap
US2389648A (en) Container-opening tool
US4693006A (en) Chain saw having a handle
US4888872A (en) Chain saw attachment
US5245757A (en) Motor-driven chain saw having a grab handle
GB2040221A (en) A pruning saw for trimming standing trees
JP2015116618A (ja) 携帯型作業機
US20220174879A1 (en) Hedge trimmer
US2777482A (en) Limbing attachment for power driven chain saws
US20160278308A1 (en) Power wedge device
US4569135A (en) Chain saw tip stabilizing device for use with an antikickback device
WO2014098682A1 (fr) Tronçonneuse comportant un organe d'affûtage de chaîne

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190314

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210802

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20221103

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602019027373

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1559514

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230515

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230419

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230412

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1559514

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230814

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230712

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230812

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230713

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602019027373

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20240115

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240209

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230412

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240206

Year of fee payment: 6