EP3858560A1 - Schneidwerkzeug - Google Patents

Schneidwerkzeug Download PDF

Info

Publication number
EP3858560A1
EP3858560A1 EP20154313.9A EP20154313A EP3858560A1 EP 3858560 A1 EP3858560 A1 EP 3858560A1 EP 20154313 A EP20154313 A EP 20154313A EP 3858560 A1 EP3858560 A1 EP 3858560A1
Authority
EP
European Patent Office
Prior art keywords
blade
cutting tool
drive unit
cutting
adapter
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.)
Withdrawn
Application number
EP20154313.9A
Other languages
English (en)
French (fr)
Inventor
Peter Rudolf
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
Priority to EP20154313.9A priority Critical patent/EP3858560A1/de
Priority to PCT/EP2020/083459 priority patent/WO2021151546A1/en
Priority to EP20811338.1A priority patent/EP4096880B1/de
Priority to CN202080095096.8A priority patent/CN115038561B/zh
Priority to PL20811338.1T priority patent/PL4096880T3/pl
Priority to FIEP20811338.1T priority patent/FI4096880T3/fi
Publication of EP3858560A1 publication Critical patent/EP3858560A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B15/00—Hand-held shears with motor-driven blades

Definitions

  • the present disclosure relates to a cutting tool. More specifically, the present disclosure relates to the cutting tool which allows ease of blade replacement for common users.
  • Cutting tools such as secateurs, loppers, rakes, pliers are used for performing cutting action using one or more blades. Put simply, such tools provide increased mechanical assistance and ease of operation to a common user to conveniently perform operations on objects such as branches having varying dimensions. Further, the cutting tools provide benefits such as trapping bypass cutting or simply "bypass" which allows pruning/cutting by the cutting tools while holding an object (i.e. branch) with one of the cutting edges.
  • the '793 reference provides a cutting tool.
  • the cutting tool includes an enclosure.
  • the cutting tool further includes a first blade and a second blade.
  • the cutting tool further includes a dowel clamping piece. At least one of the first blade and the second blade is replaceable. The dowel clamping piece is taken out to pull at least one of the first blade and the second blade.
  • the '793 reference falls short of providing a smooth and safe application with user-friendly replacement of blade(s) of the cutting tool.
  • the cutting tool includes a first blade.
  • the cutting tool further includes a second blade.
  • the second blade is pivotally coupled to the first blade.
  • the first blade and the second blade together perform a cutting action on an object placed between them.
  • the cutting tool further includes a drive unit.
  • the drive unit is operatively coupled to at least one of the first blade and the second blade.
  • the drive unit is configured to selectively provide a supplemental motor force to assist a movement of at least one of the first blade and the second blade to perform the cutting action.
  • the cutting tool further includes a rope.
  • the rope is operatively coupled to the drive unit.
  • the rope provides force for a movement of the first blade.
  • the cutting tool is characterized in that an adapter is operatively coupling the first blade with the rope.
  • the adapter has an opening to removably fit the first blade with the adapter.
  • the adapter allows on-demand replacement of the first blade through the opening of the adapter.
  • a removable nut and/or screw is provided at the pivoted position of the first blade and the second blade.
  • the removable nut and/or screw allows ejection of the first blade on disassembly of the removable nut and/or screw. So, the removable nut and/or screw provides a convenient arrangement to eject the first blade without any deformations of other parts of the cutting tool.
  • the drive unit includes a motor, a gearbox, a drum, a printed circuit board assembly (PCBA) and a battery to selectively provide the supplemental motor force.
  • This supplemental motor force by the drive unit provides the mechanical advantage to assist cutting action by the blades.
  • the cutting tool includes a slider or trigger to activate or deactivate the drive unit. This allows to have a safe and convenient operation of the cutting tool with the provision of the slider or trigger.
  • FIG. 1 illustrates a cutting tool 100 .
  • the cutting tool 100 of the present disclosure is illustrated as secateurs, however, the present disclosure may be readily applied to any cutting tool 100 such as, but not limited to, a lopper, shear, scissor etc. with two or more cutting edges.
  • the cutting tool 100 includes one or more blades i.e. a first blade 102 and a second blade 104 .
  • the second blade 104 is pivotally coupled to the first blade 102 .
  • the first blade 102 and the second blade 104 together perform a cutting action on an object (generally branches and the like) placed between them.
  • the cutting tool 100 further includes a removable nut and/or screw 106 .
  • the removable nut and/or screw 106 is provided at the pivoted position of the first blade 102 and the second blade 104 .
  • the removable nut and/or screw 106 allows ejection of the first blade 102 (best illustrated through FIGS. 4 , and 5 ) on disassembly of the removable nut and/or screw 106 .
  • the removable nut and/or screw 106 provides a convenient arrangement to eject the first blade 102 without any deformations of other parts of the cutting tool 100 .
  • the removable nut and/or screw 106 may be any one or more of a coupling nut, a flange nut, a hex nut, a lock nut, a slotted nut, a square nut, a wheel nut and the like.
  • the cutting tool 100 includes one or more handles i.e. a top handle 108 and a bottom handle 110 which are operatively coupled with the second blade 104 and the first blade 102 respectively.
  • the cutting tool 100 further includes a lid 132 .
  • the one or more blades i.e. the first blade 102 and the second blade 104 may be one or more of a clip point blade, a drop point blade, a gut hook blade, a hawkbell blade, a needle point blade, a straight back blade, a sheepsfoot blade, a spear point blade or any other blade as used or known in the art.
  • the first blade 102 and the second blade 104 may be made of steel or any other material as used or known in the art. Choice of the material for any of the first blade 102 and the second blade 104 will generally depend upon factors such as life, application, weight or other parameters related to the cutting tool 100 . However, the present disclosure is not to be limited by the type of the first blade 102 and the second blade 104 in any manner.
  • first blade 102 and the second blade 104 may be a fixed blade while the other performs desired cutting action. Alternately or additionally, both the first blade 102 and the second blade 104 may be movable during the cutting action.
  • FIG. 2 illustrates the cutting tool 100 which includes a drive unit 130 .
  • the drive unit 130 includes a motor 112 and a gearbox 114 .
  • the drive unit 130 further includes a drum 116 comprising a clutch, a retraction spring and a winch.
  • the drive unit 130 includes a printed circuit board assembly (PCBA) 118 and a battery 120 .
  • the battery 120 is covered by the lid 132 , as will be evident through combined reference to FIGS. 1 , 2 .
  • the lid 132 may be assembled, disassembled to gain access to the battery 120 .
  • the lid 132 may be assembled or disassembled with the top handle 108 using any connection such as, but not limited to, sliding, snap-fits, magnetic coupling, push-fits and the like.
  • the drive unit 130 may be operatively coupled to at least one of the first blade 102 and the second blade 104 .
  • the drive unit 130 is configured to selectively provide a supplemental motor force to assist a movement of at least one of the first blade 102 and the second blade 104 to perform the cutting action.
  • the cutting tool 100 could also include a slider or trigger to activate or deactivate the drive unit 130 .
  • this slider or trigger is realized in top of the cutting tool 100 as slider or trigger 122 , alternatively it as well could be realized as a slider or trigger.
  • the drive unit 130 On engaging, moving or pressing the slider or trigger 122 the drive unit 130 gets switched on and off and thus the cutting tool 100 becomes convenient and safe to handle by common users.
  • the drive unit 130 may be deactivated for instances which may require to save/extend battery life or allow uninterrupted operation of the power-assisted cutting tool 100 , such as for low battery conditions.
  • the motor 112 will remain in a disengaged/OFF state leading to a purely user-based cutting action by the cutting tool 100 , without any supplemental motor force.
  • the slider or trigger 122 might also look the cutting tool 100 in a closed status.
  • the slider or trigger 122 may be a button, a knob, a single pole single throw switch, a single pole double throw switch, a double pole single throw switch, a double pole double throw switch, a push-button switch, a toggle switch, a limit switch, a float switch, and the like.
  • a button, a knob, or any other switching means as used or known in the relevant art may be present in place of the switch 122 .
  • all components of the drive unit 130 are housed in a single handle i.e. the top handle 108 as best illustrated in FIG. 2 with the cutting tool being in closed status.
  • This advantageous ergonomic profile can be seen with the side view of the cutting tool 100 of FIG. 2 . By this it also becomes possible to realize the first handle 108 as a slim bottom handle that allows the operation of the cutting tool even with small hands
  • FIG. 3 illustrates details with the bottom handle 110 (shown in the bottom of the drawing) and the top handle 108 (shown on the top of the drawing) of the cutting tool 100 in a closed position.
  • the cutting tool 100 having a spring 124 .
  • the cutting tool 100 further includes a rope 126 transmitting the force from the drive unit 130 inside the top handle 108 into the bottom handle 110 and an adapter 128 inside of the bottom handle 110 .
  • the adapter 128 finds application for pre-fixing the spring 124 and the rope 126 with the bottom handle 110, without any direct engagement or contact of the spring 124 and the rope 126 with the bottom handle 110 , as best illustrated in FIG. 3 .
  • the first blade 102 is passing through the adapter 128 .
  • the piercing of the first blade 102 through the adapter 128 helps in securing or locking of the first blade 102 within the adapter 128 , and/or the bottom handle 110 as per the requirement.
  • a connection of the adapter 128 with the first blade 102 may be achieved by pushing, sliding, and piercing the first blade 102 through the adapter 128 .
  • the adapter 128 may be made up of one or more of a material like plastic, rubber, glass and the like. Additionally, or alternatively, the first blade 102 may slide, pierce, pass into the adapter 128 .
  • the adapter 128 allows the smooth movement or disassembly of the first blade 102 by simple pulling action on the first blade 102 , after removal of the removal nut and/or screw 106 as illustrated in FIG. 4 .
  • the removable nut and/or screw 106 may be disassembled by use of hand tools or by any other way convenient for the common user.
  • the first blade 102 may be disassembled from the cutting tool 100 , as illustrated in FIG. 5 . Then, the disassembled first blade 102 allows its substitution with another blade which may be another first blade 102 (not shown), which may have a sharp cutting edge or any other desired feature.
  • the substituted blade i.e. the another first blade 102 , for the replaced first blade 102 may have different design, profile etc. with same basic features, or structure which may allow it to desirably engage with the adapter 128 .
  • FIG. 5 illustrates the disassembling of the first blade 102 from the cutting tool 100 .
  • the first blade 102 may be removed or discarded by pushing, sliding the first blade 102 manually or by providing a button (not shown) which on pressing takes the first blade 102 out.
  • an indicator (not shown) may be provided. to confirm the configuration of the substituted blade (i.e. the another first blade 102 ), for the first blade 102.
  • the indicator may indicate either that the first blade 102 is in a working state or not.
  • the indications may be given by different ways like buzzing, flashing a light, change of color and any such techniques as known or used in the art.
EP20154313.9A 2020-01-29 2020-01-29 Schneidwerkzeug Withdrawn EP3858560A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP20154313.9A EP3858560A1 (de) 2020-01-29 2020-01-29 Schneidwerkzeug
PCT/EP2020/083459 WO2021151546A1 (en) 2020-01-29 2020-11-26 Cutting tool
EP20811338.1A EP4096880B1 (de) 2020-01-29 2020-11-26 Schneidwerkzeug
CN202080095096.8A CN115038561B (zh) 2020-01-29 2020-11-26 切割工具
PL20811338.1T PL4096880T3 (pl) 2020-01-29 2020-11-26 Narzędzie tnące
FIEP20811338.1T FI4096880T3 (fi) 2020-01-29 2020-11-26 Leikkaustyökalu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20154313.9A EP3858560A1 (de) 2020-01-29 2020-01-29 Schneidwerkzeug

Publications (1)

Publication Number Publication Date
EP3858560A1 true EP3858560A1 (de) 2021-08-04

Family

ID=69400407

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20154313.9A Withdrawn EP3858560A1 (de) 2020-01-29 2020-01-29 Schneidwerkzeug
EP20811338.1A Active EP4096880B1 (de) 2020-01-29 2020-11-26 Schneidwerkzeug

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20811338.1A Active EP4096880B1 (de) 2020-01-29 2020-11-26 Schneidwerkzeug

Country Status (5)

Country Link
EP (2) EP3858560A1 (de)
CN (1) CN115038561B (de)
FI (1) FI4096880T3 (de)
PL (1) PL4096880T3 (de)
WO (1) WO2021151546A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2015846A1 (de) * 1969-04-25 1970-10-29
US20110016730A1 (en) * 2009-07-21 2011-01-27 Shih-Piao Wu Pruning Hook with Two Operation Modes
US20160219793A1 (en) 2015-02-03 2016-08-04 Ma Xianpeng High-torsion electric pruning shears
CN106305166A (zh) * 2016-10-21 2017-01-11 方培锵 一种低枝剪
WO2018205126A1 (en) * 2017-05-09 2018-11-15 Tti (Macao Commercial Offshore) Limited A power tool and a driving mechanism for use in a power tool

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2404613A (en) * 2003-07-14 2005-02-09 David Jarman A vegetation pruning device
FI124699B (fi) * 2011-06-30 2014-12-15 Iittala Group Oy Ab Leikkuutyökalu
CN102884948B (zh) * 2011-07-22 2014-08-27 南京德朔实业有限公司 电动修枝剪刀
FR3007242B1 (fr) * 2013-06-19 2015-06-12 Midi Ingenierie Outil de coupe motorise electroportatif destine notamment a la taille de vegetaux
FR3034285B1 (fr) * 2015-04-01 2017-03-17 Pellenc Sa Dispositif de maintien d'une lame de coupe pivotante
DE102016211975A1 (de) * 2016-06-30 2018-01-04 Robert Bosch Gmbh Schneidvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2015846A1 (de) * 1969-04-25 1970-10-29
US20110016730A1 (en) * 2009-07-21 2011-01-27 Shih-Piao Wu Pruning Hook with Two Operation Modes
US20160219793A1 (en) 2015-02-03 2016-08-04 Ma Xianpeng High-torsion electric pruning shears
CN106305166A (zh) * 2016-10-21 2017-01-11 方培锵 一种低枝剪
WO2018205126A1 (en) * 2017-05-09 2018-11-15 Tti (Macao Commercial Offshore) Limited A power tool and a driving mechanism for use in a power tool

Also Published As

Publication number Publication date
EP4096880A1 (de) 2022-12-07
PL4096880T3 (pl) 2024-03-25
CN115038561A (zh) 2022-09-09
FI4096880T3 (fi) 2024-01-24
EP4096880B1 (de) 2023-12-20
WO2021151546A1 (en) 2021-08-05
CN115038561B (zh) 2023-07-18

Similar Documents

Publication Publication Date Title
AU2006287589B2 (en) Power tool having removable blade carrier assembly and method of attaching a working piece assembly to a power tool
US6263581B1 (en) Hunting knife with removable blade edges
US9956695B2 (en) Spring back safety and film cutter
US5701675A (en) Axe combination tool
US20100212162A1 (en) Utility cutter with a non-tool blade changer
EP3858560A1 (de) Schneidwerkzeug
EP3858561A1 (de) Schneidwerkzeug
US3153852A (en) Blade connection means for poweroperated slicing knife
EP4096879B1 (de) Schneidwerkzeug
EP4062746A1 (de) Schneidwerkzeug
EP3858133A1 (de) Schneidwerkzeug
CN202097769U (zh) 全自动冻肉鲜肉切片机
EP2263444A1 (de) Elektrische Schneidvorrichtung
CN212591789U (zh) 手持电动刨片器
CN209826220U (zh) 一种多功能瓜果刨子
CN201399618Y (zh) 锯
CN117082965A (zh) 园艺工具
KR19990035254U (ko) 다기능야채칼

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: THE APPLICATION HAS BEEN PUBLISHED

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

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20220205