WO2004078434A1 - Arrangement for a motordriven hand tool such as a chain saw - Google Patents
Arrangement for a motordriven hand tool such as a chain saw Download PDFInfo
- Publication number
- WO2004078434A1 WO2004078434A1 PCT/SE2004/000312 SE2004000312W WO2004078434A1 WO 2004078434 A1 WO2004078434 A1 WO 2004078434A1 SE 2004000312 W SE2004000312 W SE 2004000312W WO 2004078434 A1 WO2004078434 A1 WO 2004078434A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- arrangement
- chain saw
- arrangement according
- guide bar
- chain
- Prior art date
Links
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/025—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread specially designed to compensate for misalignement or to eliminate unwanted play
Definitions
- This invention relates to an arrangement for a motordriven hand tool such as a chain saw the tool comprising at least two parts that are removably secured to one another by means of a screw joint comprising two elements, the first element relating to the first part whereas the second element abuts the second part.
- the purpose of this invention is to create a simple arrangement that eliminates the disadvantages mentioned above and which automatically fixes the clutch cover in the right position when the guide bar nut is tightened. This is achieved by means of a device having the characteristics mentioned in the claims.
- Fig. 1 shows a partly broken side view of a chain saw wheras
- Fig. 2 is front a perspective view of a clutch cover assembly for the saw with a tightening mechanism for the guide bar clamping means
- Fig 3 is a perspective view of said clutch cover without the tightneing mechanism
- Fig.4 is a perspective view of a part of the tightening mechanism
- Fig 5 and 6 are two embodiments of the invention shown in section.
- Fig. 1 shows a chain saw body 10 having two handles 11 and 12 and a saw guide bar 13 on which an endless chain 14 is arranged.
- the chain is driven by a sprocket wheel hidden under a clutch cover 15.
- the clutch cover is provided with a circular recess 16, see Fig. 3, having a bottom part 17 that has a central opening 18.
- the end of the opening 18 facing the recess 16 is provided with a seat 19 that is shaped as a truncated cone.
- the clutch cover 15 clamps the guide bar 13 at the body 10 by means of a tightening arrangement, see Fig. 4, comprising a bar bolt 20, that is firmly secured to the body 10, and a nut 21 that is integrated with a tubular means 22 having a non-circular outer periphery.
- the tubular means supports a toothed wheel 23 that is used to tighten or untighten the clamping arrangement.
- the wheel 23 has a hub part 24 with an inner tubular opening whose shape corresponds to the outer shape of the tubular means 22 and the hub is arranged to slide on the tubular means 22 such that the wheel can be moved between two positions. In the first position the wheel is inserted in the recess 16 and locked against turning motion by a ridge 25 placed on the inner periphery of the recess 16. In the second position the wheel 23 is placed partly outside the recess such that the wheel and consequently the nut 21 can be turned with respect to the bar bolt 20.
- the outer periphery 26 of the nut 21 is shaped as a truncated cone having mainly the same geometrical design as the seat 19, see Fig. 5.
- the nut can of course also be adjusted by a separate tool provided an ordinary clutch cover is used.
- Fig. 6 shows another embodiment in which the saw body 10 is provided with a threaded bore 27.
- a bolt 28 is inserted in the bore 27 and extends through the guide bar 14 and the clutch cover 15.
- the bolt 28 is provided with a collar 29 having an outer surface 30 that is shaped as a truncated cone and abuts the seat 19 of the clutch cover 15.
- At the end of the bolt there is a head 31 that can be integrated with a tightening arrangement shown in Figs. 1-5 or be separately adjusted by a tool.
- the truncated conical surface of the seat 19 and on the nut 21 or bolt 28 automatically co-operate to centre the clutch cover 15 with respect to saw body 10 when the screw-nut arrangement is tightened thereby avoiding any movement between these two parts during use.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Sawing (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0300610A SE0300610D0 (en) | 2003-03-06 | 2003-03-06 | Arrangement for a motor driven hand tool such as a chain saw |
SE0300610-3 | 2003-03-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004078434A1 true WO2004078434A1 (en) | 2004-09-16 |
Family
ID=20290595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2004/000312 WO2004078434A1 (en) | 2003-03-06 | 2004-03-04 | Arrangement for a motordriven hand tool such as a chain saw |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE0300610D0 (en) |
WO (1) | WO2004078434A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7155832B2 (en) | 2005-03-01 | 2007-01-02 | Husqvarna Outdoor Products Inc. | Chain saw with tool-less chain tensioner and guide bar lock |
DE202013105469U1 (en) * | 2013-12-02 | 2015-03-03 | Makita Corporation | Fastening arrangement, portable working device for attaching a first housing part to a second housing part |
EP3053717A1 (en) * | 2015-02-03 | 2016-08-10 | Andreas Stihl AG & Co. KG | Work device |
CN111963547A (en) * | 2019-05-20 | 2020-11-20 | 安德烈·斯蒂尔股份两合公司 | Work apparatus and draw bolt for a work apparatus |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3718042A1 (en) * | 1987-05-28 | 1988-12-15 | Jansen Herfeld Roettger Fa | Frame saw blade with displaceable strips |
EP0941819A2 (en) * | 1998-03-11 | 1999-09-15 | Firma F. A. Schmahl jr. | Mounting strip for gang saw blades |
-
2003
- 2003-03-06 SE SE0300610A patent/SE0300610D0/en unknown
-
2004
- 2004-03-04 WO PCT/SE2004/000312 patent/WO2004078434A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3718042A1 (en) * | 1987-05-28 | 1988-12-15 | Jansen Herfeld Roettger Fa | Frame saw blade with displaceable strips |
EP0941819A2 (en) * | 1998-03-11 | 1999-09-15 | Firma F. A. Schmahl jr. | Mounting strip for gang saw blades |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7155832B2 (en) | 2005-03-01 | 2007-01-02 | Husqvarna Outdoor Products Inc. | Chain saw with tool-less chain tensioner and guide bar lock |
DE202013105469U1 (en) * | 2013-12-02 | 2015-03-03 | Makita Corporation | Fastening arrangement, portable working device for attaching a first housing part to a second housing part |
US9506486B2 (en) | 2013-12-02 | 2016-11-29 | Makita Corporation | Fastening arrangement, portable working tool and method of fastening a first housing section to a second housing section |
EP3053717A1 (en) * | 2015-02-03 | 2016-08-10 | Andreas Stihl AG & Co. KG | Work device |
US9993937B2 (en) | 2015-02-03 | 2018-06-12 | Andreas Stihl Ag & Co. Kg | Power tool |
CN111963547A (en) * | 2019-05-20 | 2020-11-20 | 安德烈·斯蒂尔股份两合公司 | Work apparatus and draw bolt for a work apparatus |
US11867218B2 (en) | 2019-05-20 | 2024-01-09 | Andreas Stihl Ag & Co. Kg | Work apparatus and stud bolt for a work apparatus |
CN111963547B (en) * | 2019-05-20 | 2024-03-22 | 安德烈·斯蒂尔股份两合公司 | Work apparatus and draw bolt for a work apparatus |
Also Published As
Publication number | Publication date |
---|---|
SE0300610D0 (en) | 2003-03-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1698443B1 (en) | Chain saw with tool-less chain tensioner and guide bar lock | |
EP1603718B1 (en) | Chain saw tensioning device | |
EP2106888B1 (en) | Chain saw | |
AU2008235392B2 (en) | Tightening device with swivelling handling arm and appliance including such a device | |
EP1645377B1 (en) | Assembly for tensioning a saw chain | |
DE10248866B4 (en) | Hand tool | |
US8132484B2 (en) | Sprocket cover arrangement for a hand-held chain saw | |
US20180104845A1 (en) | Chain saw | |
JPH07156101A (en) | Chain tension adjusting device of chain saw | |
US7458882B2 (en) | Adjustable handheld tool | |
AU683335B2 (en) | Hose clamp | |
US5644845A (en) | Device for the pivotable fastening of a saw base to a jig saw | |
US20050178010A1 (en) | Chainsaw tool | |
WO2004078434A1 (en) | Arrangement for a motordriven hand tool such as a chain saw | |
WO2004030868B1 (en) | Fastener removal and installation tool | |
US6032455A (en) | Device to hold roller chain | |
JP4839146B2 (en) | Chain saw chain tensioning mechanism | |
GB2354481A (en) | Chain saw tensioner | |
WO2004091873A1 (en) | Locking device for a chain saw guide bar | |
JP7026770B2 (en) | Adjustable clamp mechanism for throttle control | |
US6813984B1 (en) | Attaching device | |
CA1106264A (en) | Chain saw bar tightener | |
JP5807410B2 (en) | Chainsaw | |
DE19934352A1 (en) | Chain saw has clamp element moved transversely by rotating towards panel with pressure surface for clamping panel onto housing | |
JPH088082Y2 (en) | Saw chain tension adjustment device for chainsaw |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
122 | Ep: pct application non-entry in european phase |