WO2011097833A1 - Structure perfectionnée de cisaille - Google Patents

Structure perfectionnée de cisaille Download PDF

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Publication number
WO2011097833A1
WO2011097833A1 PCT/CN2010/070783 CN2010070783W WO2011097833A1 WO 2011097833 A1 WO2011097833 A1 WO 2011097833A1 CN 2010070783 W CN2010070783 W CN 2010070783W WO 2011097833 A1 WO2011097833 A1 WO 2011097833A1
Authority
WO
WIPO (PCT)
Prior art keywords
torsion spring
blade
assembly
transmission assembly
casing
Prior art date
Application number
PCT/CN2010/070783
Other languages
English (en)
Chinese (zh)
Inventor
韩焕忠
Original Assignee
嘉兴亚特园林机械研究所
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 嘉兴亚特园林机械研究所 filed Critical 嘉兴亚特园林机械研究所
Publication of WO2011097833A1 publication Critical patent/WO2011097833A1/fr

Links

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
    • 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
    • A01G3/02—Secateurs; Flower or fruit shears
    • A01G3/033—Secateurs; Flower or fruit shears having motor-driven blades
    • A01G3/037—Secateurs; Flower or fruit shears having motor-driven blades the driving means being an electric motor

Definitions

  • the present invention relates to a garden tool, and more particularly to a scissors machine for trimming branches, shrubs, and the like.
  • a scissor machine is a commonly used garden tool for trimming branches, shrubs, etc., compared with a conventional manually operated scissors, with a scissors machine for trimming, labor intensity is greatly reduced, efficiency is improved, with greening As the degree increases, the scissors machine will become an indispensable garden tool.
  • the rotation and braking of most scissors blades need to be realized by the motor reversing, the operation is inconvenient, the energy consumption is large, and more importantly, the output power of the motor.
  • the problem to be solved by the present invention is to provide a scissors machine which is simple in structure, compact, high in transmission efficiency, and high in output power.
  • a scissor machine improved structure including a machine a casing, a motor disposed in the casing, and a trigger disposed on the casing, wherein the motor drives the blade assembly at the front end of the casing through the transmission mechanism
  • the transmission mechanism includes an active transmission component and the blade assembly connected to the motor a driven driven transmission assembly
  • the active transmission assembly and the driven transmission assembly are connected by a torsion spring of a spiral structure
  • the torsion spring simultaneously holds the top of the active transmission assembly and the tail of the driven transmission assembly to realize the active transmission assembly
  • the interlocking rotation of the driven transmission component and the torsion spring also has a braking mechanism in the casing, and the braking mechanism is loosened in the rotation direction of the torsion spring when the torsion spring rotates with the driving transmission component
  • the driving assembly realizes braking
  • the trigger controls the braking mechanism to be locked or not locked by the connecting mechanism.
  • the active transmission assembly includes a bridge shaft for connecting a rotating shaft of the motor, and a shaft sleeve is fixed to the top of the bridge shaft;
  • the driven transmission assembly includes an output shaft, and a crank is disposed at the top of the output shaft.
  • the mechanism is connected to the blade assembly, and the bottom of the output shaft is provided with a cylindrical connecting portion that abuts against the sleeve, and the torsion spring is simultaneously hung on the outer wall of the sleeve and the connecting portion.
  • the bottom surface of the connecting portion is provided with a positioning protrusion, and the positioning protrusion is inserted into the sleeve hole of the sleeve to realize the active insertion and assembly of the active transmission component and the driven transmission component, thereby ensuring the active transmission component and
  • the driven transmission assembly has good coaxiality when it is rotated in series, which is also beneficial to the improvement of transmission efficiency.
  • the sleeve hole of the sleeve is provided with an annular step, a screw is screwed to the bottom of the positioning protrusion, and a limit circular table is arranged at the bottom of the screw, and the annular step is inserted in the limit circular table and the protruding column
  • An annular gap is formed between the bottom surfaces, and a plurality of balls are arranged around the annular step and the limiting circular table. The balls form a bearing structure with the annular step and the limiting circular table.
  • the above structure not only prevents the axial gap from becoming large after the connection portion between the sleeve and the output shaft is detached during the violent movement, thereby causing the torsion spring to be deformed, and also reducing the friction between the sleeve and the connecting portion during movement, and improving the transmission efficiency.
  • the brake mechanism includes a brake block, and a protrusion portion I for locking a torsion spring is disposed on a left side of the top of the brake block, and a protrusion for connecting the connection mechanism at a top right side of the brake block is disposed.
  • Part II, brake block, The convex portion I and the convex portion are integrally formed, and the bottom of the brake block is elastically connected to the casing through a torsion spring II, and the torsion spring II has a downward elastic tensioning force to return the brake block. .
  • the trigger comprises a turntable transferred to the casing and a rotating handle integrated with the turntable
  • the connecting mechanism comprises a connecting piece
  • the top of the connecting piece is transferred to the turntable of the trigger by a torsion spring III
  • the bottom of the connecting piece is provided with a hook portion I which is fastened to the convex portion of the brake block, and the rotating handle rotates downward to move the rotating plate to move upward, and the hook portion I abuts the convex portion II Pulling the brake block up and away from the clamping position of the torsion spring; the torsion spring III has a downward pulling force to return the connecting piece.
  • a limiting mechanism is further disposed between the trigger and the connecting mechanism, the limiting mechanism includes a hook portion II disposed at a middle portion of the connecting piece, and a limiting pin is disposed on the casing above the hook portion II, The limit pin catches the hook portion during the rise of the connecting piece, and pushes the connecting piece to rotate outward to disengage the hook portion I from the boss portion II, thereby realizing the reset of the brake block.
  • the blade assembly includes a blade housing disposed at a front end of the casing, a stationary blade fixed in the blade housing, and a movable blade transferred to the stationary blade, and the tail portion of the movable blade is provided with a hook Connect the crank mechanism.
  • the blade housing is assembled by the left and right sub-cases by fasteners to facilitate blade replacement.
  • crank mechanism includes an eccentric block disposed on the top of the output shaft and driven to rotate by the output shaft, the long axis eccentric head of the eccentric block is transferred with a hook plate, and the other end of the hook plate is provided with a hook The hole is used for hooking the hook of the tail of the moving blade, and the rotation of the eccentric block drives the hook plate to move back and forth to the left and right to drive the moving blade to make a cutting motion around the adapter.
  • the present invention divides the transmission mechanism in the scissors machine into an active transmission assembly and a driven transmission assembly, and the torsion spring connects the active transmission assembly and the driven transmission assembly through the tightness or separation of the torsion spring and the active transmission assembly.
  • the motor Realize the transmission and braking of the scissors machine, the motor always runs in one direction, minus The current consumption is reduced, so that the output power is increased, the shearing torque of the scissors machine is greatly improved, and the thicker branches can be trimmed; and the invention also has the advantages of compact internal structure and convenient blade replacement.
  • Figure 1 is a schematic view of the internal structure of the present invention
  • Figure 2 is an enlarged view of A in Figure 1;
  • Figure 3 is a schematic view showing the connection structure of the driving transmission assembly, the driven transmission assembly and the blade assembly of the present invention
  • Figure 4 is an enlarged view of the portion B in Figure 3;
  • FIG. 5 is a schematic view showing the internal structure of the blade assembly of the present invention. 1 to 4, an improved structure of a scissors machine according to the present invention includes a casing 1, a motor 2 disposed in the casing 1, and a trigger 7 disposed on the casing 1, and the motor 2 is driven.
  • the mechanism drives the blade assembly 5 at the front end of the casing 1,
  • the transmission mechanism includes a drive transmission assembly 3 coupled to the motor 2, and a driven transmission assembly 4 coupled to the blade assembly 5, the drive transmission assembly 3 and the driven transmission assembly 4 is connected by a torsion spring 6 of a spiral structure, and the torsion spring 6 simultaneously holds the top of the active transmission assembly 3 and the tail of the driven transmission assembly 4 to realize the active transmission assembly 3, the driven transmission assembly 4, and the torsion spring 6
  • a braking mechanism 8 is also disposed in the casing 1 , and the braking mechanism 8 is locked in the rotating direction of the torsion spring to release the active transmission component 3 when the torsion spring 6 rotates with the driving transmission component 3 .
  • the trigger 7 controls the brake mechanism 8 to be locked or not locked by the connecting mechanism 9.
  • the drive assembly 3 includes a bridge shaft 30 for connecting the rotating shaft of the motor 2, and the top of the bridge shaft is fixed
  • the driven transmission assembly 4 includes an output shaft 40.
  • the top of the output shaft is provided with a crank mechanism for connecting the blade assembly 5, and the bottom of the output shaft 40 is matched with the sleeve 31.
  • the cylindrical connecting portion 41, the torsion spring is simultaneously hung on the outer wall of the sleeve and the connecting portion; the bottom surface of the connecting portion is provided with a positioning protrusion 411, and the positioning protruding rod 411 is movably inserted into the sleeve hole of the sleeve.
  • the active plug-in assembly of the active transmission component 3 and the driven transmission component 4 ensures that the active transmission component 3 and the driven transmission component 4 have good coaxiality when rotated in conjunction with each other, and the transmission efficiency is also improved;
  • An annular step 311 is defined in the sleeve hole 31, a screw 43 is screwed to the bottom of the positioning protrusion 411, and a limiting circular table 431 is arranged at the bottom of the screw.
  • the annular step is inserted between the limiting circular table and the bottom surface of the protruding column.
  • a ring 32 is arranged between the annular step and the limiting circular table, and the ball forms a bearing structure with the annular step and the limiting circular table, so as to prevent the connection between the sleeve and the output shaft from being separated during strenuous movement.
  • Rear The axial clearance becomes larger, which causes the torsion spring to deform, and also reduces the friction between the sleeve and the connecting portion during movement, and improves the transmission efficiency.
  • the brake mechanism 8 includes a brake block 80.
  • the top left side of the brake block is provided with a boss portion 81 for clamping the torsion spring 6, and the top portion of the brake block is provided with a boss portion for connecting with the connection mechanism 9.
  • 1182, the brake block, the boss portion I and the boss portion are integrated, and the bottom of the brake block is elastically connected to the casing 1 by a torsion spring II 83, and the torsion spring II has a downward elastic pull
  • the tightening force returns the brake block 80;
  • the trigger 7 includes a turntable 71 that is transferred to the casing 1 and a rotating handle 72 that is integral with the turntable.
  • the connecting mechanism 9 includes a connecting piece 90, and the top of the connecting piece 90
  • the torsion spring ⁇ 93 is transferred to the turntable of the trigger 7, and the bottom of the connecting piece 90 is provided with a hook portion I 91 which is fastened to the convex portion II of the brake block, and the rotating handle 72 is rotated downward to make the turntable pull connection.
  • a limiting mechanism is further disposed between the trigger 7 and the connecting mechanism 9, and the limiting mechanism comprises a hook portion 1 disposed in the middle of the connecting piece 90 192, a housing pin 1 above the hook portion II is provided with a limiting pin 94, the limiting pin During the ascending process of the connecting piece 90, the hooking portion II pushes the connecting piece 90 outward to rotate the hook portion I and the boss portion II to release the brake block.
  • the blade assembly 5 includes a blade housing disposed at the front end of the casing 1, a stationary blade 51 fixed in the blade housing, and a movable blade 52 coupled to the stationary blade.
  • the tail of the movable blade is provided.
  • a hook 521 is provided for connecting the crank mechanism; the blade housing is assembled by the left and right sub-housings 50, 50' by fasteners 53, facilitating blade replacement.
  • the crank mechanism includes an eccentric block 42 disposed on the top of the output shaft 40 and driven to rotate by the output shaft.
  • the long axis eccentric head 421 of the eccentric block is coupled with a hook plate 44, and the other end of the hook plate is provided with a hook hole 441.
  • the hook 521 is used for hooking the tail of the movable blade 52.
  • the rotation of the eccentric block drives the hook plate to move back and forth to the left and right to drive the movable blade to make a cutting motion around the adapter.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Scissors And Nippers (AREA)
  • Harvester Elements (AREA)

Abstract

L'invention porte sur une structure perfectionnée de cisaille qui comprend un corps (1), un moteur (2) logé dans le corps (1) et une gâchette (13) montée sur le corps (1). Un ensemble lame (5) situé à l'avant est entraîné par le moteur (2) par l'intermédiaire d'une transmission. La transmission comprend un ensemble de transmission actif (3) relié au moteur (2) et un ensemble de transmission passif (4) relié à l'ensemble lame (5). L'ensemble de transmission actif (3) est relié à l'ensemble de transmission passif (4) par l'intermédiaire d'un ressort de torsion hélicoïdal (6) et le ressort de torsion hélicoïdal (6) englobe la partie supérieure de l'ensemble de transmission active (3) et la partie terminale de l'ensemble de transmission passif (4) en même temps pour obtenir une rotation de timonerie des trois ensembles, l'ensemble de transmission actif (3), l'ensemble de transmission passif (4) et le ressort de torsion (6). Un mécanisme de freinage (8) est logé en supplément dans le corps (1). Lorsque le ressort de torsion (6) fait tourner l'ensemble de transmission actif (3), le mécanisme de freinage (8) est verrouillé dans la direction de rotation du ressort de torsion (6) pour libérer l'ensemble de transmission actif (3), en réalisant ainsi le freinage. Le mécanisme de freinage (8) qui verrouille ou qui ne verrouille pas le ressort de torsion (6) est commandé par la gâchette (7) par l'intermédiaire d'un mécanisme de timonerie (9). La cisaille a les avantages d'une structure compacte, d'une facilité de changement de la lame, d'une énergie de sortie constante et d'une torsion fortement augmentée.
PCT/CN2010/070783 2010-02-10 2010-02-26 Structure perfectionnée de cisaille WO2011097833A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010101095759A CN101766097B (zh) 2010-02-10 2010-02-10 一种剪刀机结构
CN201010109575.9 2010-02-10

Publications (1)

Publication Number Publication Date
WO2011097833A1 true WO2011097833A1 (fr) 2011-08-18

Family

ID=42499324

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/070783 WO2011097833A1 (fr) 2010-02-10 2010-02-26 Structure perfectionnée de cisaille

Country Status (2)

Country Link
CN (1) CN101766097B (fr)
WO (1) WO2011097833A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4021692A4 (fr) * 2019-08-29 2023-09-06 Fiskars Finland Oy Ab Élagueur électrique sur perche

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102523949B (zh) * 2011-12-09 2015-09-30 宁波新港工具有限公司 剪枝机
CN109845508A (zh) * 2019-04-10 2019-06-07 浙江天泰机械有限公司 绿篱机的驱动装置及绿篱机
CN110125987B (zh) * 2019-05-16 2024-03-19 宁波赤菟科技有限公司 电剪刀
WO2022106020A1 (fr) * 2020-11-20 2022-05-27 Husqvarna Ab Outil de coupe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0118350A1 (fr) * 1983-02-18 1984-09-12 SOCIETE D'ETUDES ET DE RECHERCHES DE L'ECOLE NATIONALE SUPERIEURE D'ARTS ET METIERS en abrégé S E R A M Sécateur à moteur électrique
CN2106691U (zh) * 1991-05-16 1992-06-10 张漪� 微型电动剪刀
US5894667A (en) * 1995-06-12 1999-04-20 Anne Lynch Hand tools
JP2000279029A (ja) * 1994-01-20 2000-10-10 Makita Corp ヘッジトリマ
CN101537627A (zh) * 2009-04-13 2009-09-23 李爱良 充电式多功能电动剪刀

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
IT212378Z2 (it) * 1987-10-08 1989-07-04 Va Ri Me S R L Cesoia motorizzata autoalimentata utilizzabile in particolare per la potatura di piante
FR2624417B1 (fr) * 1987-04-28 1994-06-10 Pellenc & Motte Outil electrique portable
DE8814543U1 (de) * 1988-11-22 1989-01-19 NIKO Nippert Maschinenbau, 7580 Bühl Maschinelle Handschere, insbesondere für die Landwirtschaft
AT501590B1 (de) * 2005-11-25 2006-10-15 Strube Karl Elektrische schere
CN201630056U (zh) * 2010-02-10 2010-11-17 浙江亚特电器有限公司 一种剪刀机改进结构

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0118350A1 (fr) * 1983-02-18 1984-09-12 SOCIETE D'ETUDES ET DE RECHERCHES DE L'ECOLE NATIONALE SUPERIEURE D'ARTS ET METIERS en abrégé S E R A M Sécateur à moteur électrique
CN2106691U (zh) * 1991-05-16 1992-06-10 张漪� 微型电动剪刀
JP2000279029A (ja) * 1994-01-20 2000-10-10 Makita Corp ヘッジトリマ
US5894667A (en) * 1995-06-12 1999-04-20 Anne Lynch Hand tools
CN101537627A (zh) * 2009-04-13 2009-09-23 李爱良 充电式多功能电动剪刀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4021692A4 (fr) * 2019-08-29 2023-09-06 Fiskars Finland Oy Ab Élagueur électrique sur perche

Also Published As

Publication number Publication date
CN101766097B (zh) 2012-03-21
CN101766097A (zh) 2010-07-07

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