WO2023096551A1 - Couvercle cylindrique amovible pour une débrousailleuse et débrousailleuse comprenant un tel couvercle - Google Patents

Couvercle cylindrique amovible pour une débrousailleuse et débrousailleuse comprenant un tel couvercle Download PDF

Info

Publication number
WO2023096551A1
WO2023096551A1 PCT/SE2022/051074 SE2022051074W WO2023096551A1 WO 2023096551 A1 WO2023096551 A1 WO 2023096551A1 SE 2022051074 W SE2022051074 W SE 2022051074W WO 2023096551 A1 WO2023096551 A1 WO 2023096551A1
Authority
WO
WIPO (PCT)
Prior art keywords
bushcutter
cover
casing
wall
cylindrical casing
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.)
Ceased
Application number
PCT/SE2022/051074
Other languages
English (en)
Inventor
Anders Brus
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.)
Anders Brus Med Brusconsulting Firma
Original Assignee
Anders Brus Med Brusconsulting Firma
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 Anders Brus Med Brusconsulting Firma filed Critical Anders Brus Med Brusconsulting Firma
Priority to EP22899191.5A priority Critical patent/EP4415519A4/fr
Publication of WO2023096551A1 publication Critical patent/WO2023096551A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/81—Casings; Housings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/416—Flexible line cutters
    • A01D34/4167—Protection devices
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/835—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes
    • A01D34/90—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes for carrying by the operator
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/04—Apparatus for trimming hedges, e.g. hedge shears
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/04—Apparatus for trimming hedges, e.g. hedge shears
    • A01G3/047—Apparatus for trimming hedges, e.g. hedge shears portable
    • A01G3/053—Apparatus for trimming hedges, e.g. hedge shears portable motor-driven
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/06—Hand-held edge trimmers or shears for lawns
    • A01G3/062—Motor-driven edge trimmers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/82—Other details
    • A01D34/828—Safety devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/021—Construction of casings, bodies or handles with guiding devices

Definitions

  • the present invention relates to a removable cover for a bushcutter and a bushcutter comprising such a cover.
  • the present invention is at least partially based on the realisation that covering the upper portion of the trimmer head and the bevel gear housing reduces the risk of vegetation becoming entangled therein. This is beneficial, as it reduces the amount of time the user has to spend clearing vegetation from the drive or gearing of the bushcutter.
  • the present invention is furthermore based on the realisation that being able to manually adjust the axial position of the cover over the trimmer head allows for the cover to be used with more variants of bushcutters, thus increasing the usability of the removable cover.
  • a removable cover for a bushcutter comprises a cylindrical casing.
  • the cylindrical casing comprises an opening for said bushcutter to protrude through, and a wall of said cylindrical casing is arranged to cover a bevel gear housing of said bushcutter.
  • said wall comprises a first and a second adjusting track for adjusting the casing relative the bushcutter.
  • said cover further comprises a mounting module for mounting said casing to said bushcutter.
  • the mounting module comprises a connecting portion arranged to be attached to said bushcutter, wherein said mounting module further comprises a first and a second casing connecting portion extending from opposing side edges of said connecting portion.
  • Each casing connecting portion is adjustably attachable to a corresponding adjusting track thereof by a fastening means.
  • the adjusting track may be formed as an opening in the surface of the wall.
  • spatial references such as lower, higher, axial or radial are to be understood using their normal meaning, with up being the direction away from the side of the trimmer head that is to face the ground, and down being taken to mean the direction that is towards the ground when the bushcutter to which the cover is to be connected to is in use.
  • Radial is taken to mean in a direction perpendicular to a central axis of the cylindrical casing, and axial is taken to mean a direction parallel thereto.
  • the wall of the cylindrical casing prevents grass, weeds and other vegetation from becoming entangled in the bevel gear and the drive of the bushcutter.
  • the connecting portion is arranged to be attached to an underside or a top side of a section extending away from the bevel gear housing.
  • the section may be a pipe section connectable to the handle of the bushcutter.
  • each first and second casing connecting portion is arc-shaped having a first radius corresponding to a second radius of the wall of the cylindrical casing.
  • the fastening means may be a wing-nut, thus allowing for easy attachment of the casing to the bushcutter and also adjustment of the casing relative the bushcutter.
  • the first and the second adjusting tracks may be arranged on opposing sides of said opening extending in said axial direction of said casing.
  • the connecting portion may extend radially outwards from said wall when attached thereto.
  • a lower edge of said wall of said cylindrical casing is provided such that it is arranged adjacent to an upper surface of a trimmer head of said bushcutter when connected thereto.
  • said cylindrical casing has an open bottom configured to be arranged adjacent to an upper surface of said trimmer head, and a top that is covered by a mesh arranged to prevent debris from entering while allowing air to pass therethrough. This provides a balance between protection from vegetation and airflow needed for cooling the bevel gearing.
  • said opening in said cylindrical casing is a slit extending from a lower edge of a wall of said cylindrical casing.
  • the width of said slit is equal to or greater than the width of the connection arm, but no more than 15% greater, preferably no more than 10% greater, most preferably no more than 5% greater.
  • said slit extends along part of the axial extension of said cylindrical casing. Said slit extends along no more than 90% of the axial extension of said cylindrical casing, preferably no more than 80%, most preferably no more than 70%. Thus, a sufficient coverage of the bevel gear housing is achieved.
  • a bushcutter is provided, said bushcutter having a cover according to the first aspect of the present invention. Said bushcutter comprises a trimmer head connected to a bevel gear housing arranged at one end of the bushcutter, and said cover is connected to the bevel gear housing by means of said mounting module such that said wall of said cylindrical casing is arranged adjacent to an upper surface of said trimmer head.
  • a lower edge of said wall of said cylindrical casing is arranged less than 15 mm, preferably less than 10 mm, and most preferably less than 5 mm from said upper surface of said trimmer head.
  • the diameter of said wall of said cylindrical casing is larger than the diameter of said trimmer head, and said lower edge of said wall of said cylindrical casing overlaps said upper surface of said trimmer head.
  • Figure 1 A is a schematic view showing a the removable cover
  • Figure 1 B is a schematic drawing showing the removable cover attached to a bushcutter
  • Figure 2 is a schematic drawing showing the cylindrical casing
  • Figure 3 is an exploded schematic side view of the removable cover and a bushcutter
  • Figure 4 is a bushcutter comprising the removable cover.
  • Figure 1 A is a schematic view the removable cover 1 comprising a cylindrical casing 100 having a wall 101 extending in an axial direction thereof.
  • the wall 101 has a lower edge 103 arranged to face a trimmer head 303 of the bushcutter 300 to which the cover 1 is to be connected, and an upper edge 105 arranged opposite thereto.
  • the cylindrical casing 100 is arranged to cover the bevel gear housing 301 of a bushcutter 300 when connected thereto (see Figure 3).
  • the cylindrical casing 100 has an open bottom 107 configured to be arranged adjacent to an upper surface 305 of the trimmer head 303 (also shown in Figure 3), and a top 109 that may be covered by a mesh 111 arranged to prevent debris from entering while allowing air to pass therethrough.
  • the cylindrical casing 100 comprises an opening 121 for said bushcutter 300 to protrude through, and a wall 101 of said cylindrical casing 100 is arranged to cover a bevel gear housing (see Fig. 3) of said bushcutter.
  • said wall 101 comprises a first and a second adjusting track 110, 110’ for adjusting the casing 100 relative the bushcutter.
  • said cover 1 further comprises a mounting module 112 for mounting said casing to said bushcutter 300.
  • the mounting module 112 comprises a connecting portion 113 arranged to be attached to said bushcutter 300, wherein said mounting module 112 further comprises a first and a second casing connecting portion 114, 114’ extending from opposing side edges 115 of said connecting portion 113.
  • Each casing connecting portion 114, 114’ is adjustably attachable to a corresponding adjusting track 110 thereof by a fastening means.
  • the adjusting track 110 may be formed as an opening in the surface of the wall 101 as shown in Figure 1A.
  • the opening 121 may be in in the form of a slit extending upwards from the lower edge 103 of the wall 101 of the cylindrical casing 100.
  • the opening 121 extends along approximately 60% of the axial length of the cylindrical casing 100.
  • Figure 1 B is a schematic cut-out drawing showing the cylindrical casing 100 attached to the bushcutter 300 by means of the mounting module 112 of said cover 1.
  • the bushcutter 300 is shown as a cut-out view. Further, the trimmer head 303 of the bushcutter 300 is shown.
  • the fastening means 123 in the shape of wing nuts, are used to connect the cylindrical casing 100 to the bushcutter 300.
  • the adjusting tracks 110. 110’ allow for the cover to be adjusted relative the bushcutter 300, this provides an advantage of allowing for one standard type of cover 1 to be applicable to several different types of bushcutters 300 of different size.
  • the connecting portion 113 may be arranged to be attached to an underside 310’ or a top side of a section 310 extending away from the bevel gear housing 301 . In figure 1 B, it is attached to the underside 310’ that makes it less visible.
  • Each first and second casing connecting portion 114, 114’ may be arcshaped having a first radius corresponding to a second radius of the wall of the cylindrical casing 100. This is illustrated in Figures 1A and 1 B. This allows for the mounting module 112 to be secured robustly while having a convenient assembly process.
  • the first and the second adjusting tracks 110, 110’ may be arranged on opposing sides of said opening 121 , said adjusting tracks 110, 110’ extending in said axial direction of said casing 100.
  • the connecting portion 113 may extend radially outwards from said wall when attached thereto. It may extend in a direction perpendicular to said axial direction of said wall 101 or have an extension having an angle of 45-135 degrees relative the axial direction of said wall 101 .
  • Figure 2 is a perspective view of said cylindrical casing 100 showing the two axially extending adjusting tracks 110, 110’ being on opposing sides of said opening and extending in said axial direction of said casing 100.
  • FIG 3 is an exploded schematic side view of the removable cover 1 and a bushcutter 300.
  • the bushcutter 300 comprises a bevel gear housing 301 , to which the mounting module 112 is connected.
  • the mounting module 112 may be connected first to the bushcutter 300 and subsequently the casing 100 can be connected to the mounting module 112.
  • the bushcutter 300 further comprises a trimmer head 303, the upper surface 305 of which the lower edge 103 of the wall 101 is to be arranged adjacent to.
  • the mounting module 112 may be connected to the bushcutter 300 by means of e.g. bolts.
  • Figure 4 is a schematic cut-out side view of the removable cover 1 and a bushcutter 300 mounted together. Figure 4 illustrates how the mounting module 112 allows for convenient connection between the bushcutter 300 and the cover 1 .

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Harvester Elements (AREA)
  • Gear Transmission (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Dowels (AREA)

Abstract

La présente invention concerne un couvercle amovible pour une débroussailleuse (300), ledit couvercle (1) comprenant une enveloppe cylindrique (100). L'enveloppe cylindrique (100) comprend une ouverture (121) pour que ladite débroussailleuse (300) fasse saillie par celle-ci et une paroi (101) de ladite enveloppe cylindrique (100) est conçue pour recouvrir un boîtier d'engrenage conique (301) de ladite débroussailleuse (300). En outre, la paroi (101) comprend un premier et un second rail d'ajustement (110, 110') pour ajuster l'enveloppe (100) par rapport à la débroussailleuse (300). De plus, le couvercle (1) comprend en outre un module de montage (112) pour monter ladite enveloppe (100) sur ladite débroussailleuse (300).
PCT/SE2022/051074 2020-11-30 2022-11-17 Couvercle cylindrique amovible pour une débrousailleuse et débrousailleuse comprenant un tel couvercle Ceased WO2023096551A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22899191.5A EP4415519A4 (fr) 2020-11-30 2022-11-17 Couvercle cylindrique amovible pour une débrousailleuse et débrousailleuse comprenant un tel couvercle

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE2051387A SE544277C2 (en) 2020-11-30 2020-11-30 Removable cylidrical cover for a bushcutter and a bushcutter comprising such a cover
SE2151452A SE545001C2 (en) 2020-11-30 2021-11-29 Removable cylindrical cover for a bushcutter and a bushcutter comprising such a cover
SE2151452-6 2021-11-29

Publications (1)

Publication Number Publication Date
WO2023096551A1 true WO2023096551A1 (fr) 2023-06-01

Family

ID=80738623

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2022/051074 Ceased WO2023096551A1 (fr) 2020-11-30 2022-11-17 Couvercle cylindrique amovible pour une débrousailleuse et débrousailleuse comprenant un tel couvercle

Country Status (3)

Country Link
EP (1) EP4415519A4 (fr)
SE (2) SE544277C2 (fr)
WO (1) WO2023096551A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630371A (en) * 1986-02-06 1986-12-23 Graham Andrew J Line trimmer shield
US5924205A (en) * 1996-07-31 1999-07-20 Diatop Corporation Protection cover for a trimmer
US20040093740A1 (en) * 2002-11-15 2004-05-20 Swanson Richard C. Hand-held rotary hedge trimmer
US6941738B1 (en) * 2004-09-16 2005-09-13 Edward B. Standish Active guard for a line trimmer
US7963041B1 (en) * 2006-07-25 2011-06-21 Smith Craig A Guard for filament-type trimmer for protection while trimming vegetation
US20120073146A1 (en) * 2010-09-25 2012-03-29 Hebert Michael J Cover for an edge trimmer apparatus
US20160262306A1 (en) * 2015-03-11 2016-09-15 John Macedonio Protective Shield Apparatus
JP3222213U (ja) * 2019-05-07 2019-07-18 春雄 牧野 刈払機用ガード部材
US20200084962A1 (en) * 2014-11-25 2020-03-19 Chervon (Hk) Limited Grass trimmer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4419822A (en) * 1981-01-14 1983-12-13 Black & Decker Inc. Bump-feed trimmer
JP2568950Y2 (ja) * 1992-11-20 1998-04-22 株式会社共立 刈払機の刃部カバー
US6226876B1 (en) * 1998-08-13 2001-05-08 Thomas E. Ezell Debris shield for hand-held string trimmer
EP2825017A4 (fr) * 2012-03-15 2016-05-11 Shakespeare Co Llc Tête de taille-bordures universellement adaptable et facile à charger dotée d'un bouton à frapper sur le sol et à rotation libre
KR20140080060A (ko) * 2012-12-20 2014-06-30 이광 예취기용 커버
SE1850147A1 (en) * 2018-02-12 2019-08-13 Husqvarna Ab Trimmer head and trimmer

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630371A (en) * 1986-02-06 1986-12-23 Graham Andrew J Line trimmer shield
US5924205A (en) * 1996-07-31 1999-07-20 Diatop Corporation Protection cover for a trimmer
US20040093740A1 (en) * 2002-11-15 2004-05-20 Swanson Richard C. Hand-held rotary hedge trimmer
US6941738B1 (en) * 2004-09-16 2005-09-13 Edward B. Standish Active guard for a line trimmer
US7963041B1 (en) * 2006-07-25 2011-06-21 Smith Craig A Guard for filament-type trimmer for protection while trimming vegetation
US20120073146A1 (en) * 2010-09-25 2012-03-29 Hebert Michael J Cover for an edge trimmer apparatus
US20200084962A1 (en) * 2014-11-25 2020-03-19 Chervon (Hk) Limited Grass trimmer
US20160262306A1 (en) * 2015-03-11 2016-09-15 John Macedonio Protective Shield Apparatus
JP3222213U (ja) * 2019-05-07 2019-07-18 春雄 牧野 刈払機用ガード部材

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4415519A4 *

Also Published As

Publication number Publication date
EP4415519A4 (fr) 2025-11-12
SE2151452A1 (en) 2022-05-31
SE2051387A1 (en) 2022-03-22
SE544277C2 (en) 2022-03-22
SE545001C2 (en) 2023-02-21
EP4415519A1 (fr) 2024-08-21

Similar Documents

Publication Publication Date Title
US9801337B2 (en) Lawn mower
US6892461B2 (en) Weed trimmer safety guard
US10638663B2 (en) Weed trimmer extension system
EP3549429B1 (fr) Robot de tondeuse à gazon
US20200000025A1 (en) Convertible cap and head system
US12356888B2 (en) Dual function power tool
EP3075221A1 (fr) Tondeuse à gazon avec disque à lames
WO2006062727A2 (fr) Tondeuse a coupe-bordure soufflante pour entretien de vegetation
US12288544B2 (en) Power tool having noise reduction features
RU2306690C2 (ru) Нож, предназначенный для установки на ротационной косилке, и комбинация корпуса ротационной косилки и ножа
US20080301902A1 (en) Blower Attachment and Blower Device for Garden and Landscape Maintenance
WO2023096551A1 (fr) Couvercle cylindrique amovible pour une débrousailleuse et débrousailleuse comprenant un tel couvercle
US20040148783A1 (en) Lawn trimmer guard
US20030000195A1 (en) Lawn mower guard device
JP7853451B2 (ja) エッジ刈込ツールアセンブリ及び電動ツール
US6941738B1 (en) Active guard for a line trimmer
US5860272A (en) Mower belt housing hole cover
US4894980A (en) Apparatus for trimming lawns and the like
US20220142047A1 (en) Lawn mower extension
US20060179663A1 (en) Trimmer head
EP0119339A1 (fr) Tondeuse à gazon/coupe-bordure
US20260002543A1 (en) Blower
JPH0140432Y2 (fr)
US20110113746A1 (en) Grass trimming device with a front guard
CN210580128U (zh) 一种修枝机防护罩

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22899191

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2022899191

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2022899191

Country of ref document: EP

Effective date: 20240515

NENP Non-entry into the national phase

Ref country code: DE