CN103843597A - Pruning shears - Google Patents

Pruning shears Download PDF

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Publication number
CN103843597A
CN103843597A CN201210516370.1A CN201210516370A CN103843597A CN 103843597 A CN103843597 A CN 103843597A CN 201210516370 A CN201210516370 A CN 201210516370A CN 103843597 A CN103843597 A CN 103843597A
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CN
China
Prior art keywords
housing
shrub
hedge trimmer
main handle
switch
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
CN201210516370.1A
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Chinese (zh)
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CN103843597B (en
Inventor
杨勇
戴霞红
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.)
Technology (china) Co Ltd
Original Assignee
Positec Power Tools Suzhou Co Ltd
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Application filed by Positec Power Tools Suzhou Co Ltd filed Critical Positec Power Tools Suzhou Co Ltd
Priority to CN201210516370.1A priority Critical patent/CN103843597B/en
Publication of CN103843597A publication Critical patent/CN103843597A/en
Application granted granted Critical
Publication of CN103843597B publication Critical patent/CN103843597B/en
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Abstract

The invention discloses a pair of pruning shears. The pair of pruning shears comprises a shell, a knife bar assembly, a driving device and a transmission mechanism, wherein the shell comprises a first shell and a second shell; the transmission mechanism is accommodated in the first shell; the knife bar assembly is connected with the first shell; the driving device is accommodated in the second shell; a main handle is arranged between the first shell and the second shell. According to the pruning shears, the first shell is connected with the knife bar assembly and is used for accommodating the transmission mechanism, the second shell is used for accommodating the driving device, and the main handle is arranged between the first shell and the second shell, so that the fore-and-aft gravity balance of the machine body of the pruning shears facilitates the operation of a user.

Description

Shrub and hedge trimmer
Technical field
The present invention relates to a kind of shrub and hedge trimmer.
Background technology
The main handle of existing shrub and hedge trimmer is arranged at one end of housing, and motor is arranged in the housing between main handle and tool section assembly.In the time gripping shrub and hedge trimmer, because gravity deflection is to tool section assembly one end, front and back gravity unbalance, inconvenient user's operation.Therefore existing shrub and hedge trimmer are also provided with assist handle near tool section assembly place on housing, and user's both hands grip respectively main handle and assist handle, thereby reach the object of gravitational equilibrium.
But in some cases, user need to be hold by one hand described shrub and hedge trimmer, now hold main handle or assist handle and all can not make the gravitational equilibrium of shrub and hedge trimmer, be therefore necessary existing shrub and hedge trimmer to improve.
Summary of the invention
The deficiency existing for prior art, the invention provides one and makes fuselage front and back gravitational equilibrium, is convenient to the shrub and hedge trimmer of user's operation.
Technical scheme of the present invention is achieved in that a kind of shrub and hedge trimmer, comprising: housing; The tool section assembly being connected with described housing; Be positioned at the drive unit of described housing; Be arranged at the transmission mechanism in described housing, for connecting described drive unit and described tool section assembly; And be arranged at least one switch in housing, for starting or stoping described drive unit; Described housing comprise near tool section assembly arrange the first housing and and away from tool section assembly arrange the second housing, described transmission mechanism is placed in described the first housing, described drive unit is placed in described the second housing, between described the first housing and the second housing, be provided with main handle, described main handle is provided with at least one the triggering part for triggering described switch.
Preferably, described drive unit is motor, the driving shaft of described motor parallel with the longitudinal axis of described housing or overlap.
Further, between the driving shaft two ends of described motor and described the second housing, be provided with damping device.
Further, the driving shaft of described motor is longitudinally connected with the transmission mechanism that is positioned at the first housing through the inside of described main handle.
Further, the rotating speed of described motor is at least 20000r/min.
Preferably, in described the second housing, be provided with cooling fan, described cooling fan is arranged at and is positioned at described driving shaft one end away from described main handle.
Preferably, described the second housing is provided with some ventilating openings near the position at described motor two ends, described ventilating opening comprises air inlet and air outlet, described air inlet is arranged at described the second housing one end near described main handle, and described air outlet is arranged at described the second housing one end away from described main handle.
Further, described air outlet is provided with the gathering sill of depression away from the outside of described main handle.
Preferably, be also provided with cage knob on described main handle, in the time that described cage knob is pressed, described triggering part can be triggered described switch by operation.
Further, described triggering part and cage knob are arranged at respectively two sides relative on described main handle.
Further, described triggering part is pivotally connected in the first housing, triggers part and comprises pressure section, the first operating portion and projection, and described pressure section is used for triggering described switch; Described cage knob is pivotally connected in the first housing, cage knob comprises blocking part and the second operating portion, blocking part can by operatively with trigger the projection butt of part, in the time that described cage knob is pressed, described blocking part and projection stagger, and described triggering part can be operated and trigger described switch.
Preferably, described shrub and hedge trimmer also comprise assist handle, described assist handle is arranged on described the first housing, described main handle is provided with the first triggering part, described assist handle is provided with the second triggering part, trigger part and second and trigger part while being all pressed when described first, the switch of described drive unit is triggered.
Further, described first triggers part is pivotally connected in the first housing, first triggers part comprises pressure section and the first operating portion, described the first triggering part and second triggers between part has fitting and connecting rod, the first end of fitting and first triggers part butt for trigger switch, the second end has pivot, the first end of connecting rod and fitting pivotally connected, the second end is connected with the second triggering part, fitting has away from the primary importance of switch and compresses the second place of switch, when the first triggering part and second triggers part while being all pressed, fitting is transformed into the second place from primary importance, thereby trigger switch.
Further, in described the first housing, be provided with chute, the pivot of described fitting is movably connected in described chute.
Beneficial effect of the present invention: shrub and hedge trimmer of the present invention connect tool section assembly accommodating transmission mechanism by the first housing, the accommodating drive unit of the second housing, between the first housing and the second housing, main handle is set, makes the gravitational equilibrium of shrub and hedge trimmer fuselage front and back, facilitated user's operation.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the schematic perspective view of shrub and hedge trimmer in the specific embodiment of the invention.
Fig. 2 is the vertical view of shrub and hedge trimmer in the specific embodiment of the invention.
Fig. 3 is shrub and hedge trimmer in specific embodiment of the invention cutaway views longitudinally.
Fig. 4 is the schematic diagram of the switch triggering in Fig. 3.
Fig. 5 is shrub and hedge trimmer in another preferred embodiments of the present invention cutaway views longitudinally.
Fig. 6 is the schematic diagram of the switch triggering in Fig. 5.
Wherein,
100, shrub and hedge trimmer; 12, the first housing; 14, the second housing;
15, air inlet; 16, air outlet; 20, motor;
21, motor drive shaft; 22, motor extending shaft; 23, cooling fan;
30, transmission mechanism; 17, gathering sill; 33, jackshaft;
34, output shaft; 35, eccentric wheel; 40, tool section assembly;
50, main handle; 51, holding part; 52, connecting portion;
53, opening; 60, assist handle; 70, protective cover;
41, upper tool section; 42, lower tool section; 80, switch;
511, first trigger part; 512, cage knob; 51a, pressure section;
51b, the first operating portion; 51c, the first pivot; 51d, projection;
51e, blocking part; 51f, the second operating portion; 51g, the second pivot;
82, fitting; 84, chute; 86, connecting rod;
110, power line;
Embodiment
Please refer to Fig. 1 and Fig. 2, the present invention relates to a kind of shrub and hedge trimmer 100, comprise the housing extending longitudinally, the transmission mechanism that is arranged at the drive unit in housing and is connected with drive unit, the tool section assembly 40 being connected with transmission mechanism, the main handle 50 being connected with housing, assist handle 60 and protective cover 70.Particularly, drive unit is motor.
Housing comprises for accommodating transmission mechanism the first housing 12 and for the second housing 14, the first housings 12 of accommodating motor and arranging near tool section assembly 40, and the second housing 14 arranges away from tool section assembly 40, and the first housing 12 and the second housing 14 all longitudinally arrange.Described tool section assembly 40 is connected with the first housing 12.
Described main handle 50 connects the first housing 12 and the second housing 14, be that main handle 50 is arranged between motor and tool section assembly 40, make heavier tool section assembly 40 and motor lay respectively at the both sides of main handle 50, the comparatively balance of fuselage gravity of shrub and hedge trimmer 100 front and back in the time that user grips main handle 50.
Assist handle 60 is arranged on the first housing 12 between tool section assembly 40 and main handle 50, and it is outstanding that this assist handle 60 is forward acute angle from the end face of the first housing 12.
Protective cover 70 is arranged at the end face of the first housing 12, and it is outstanding to be forward acute angle from the end face of the first housing 12, covers a part for tool section assembly 40 from top.
Please refer to Fig. 3, main handle 50 comprises holding part 51 and connecting portion 52.Holding part 51 connects the first housing 12 and the second housing 14.Described connecting portion 52 is arc, and its two ends are connected with the two ends of holding part 51 respectively.Holding part 51 is oppositely arranged with connecting portion 52, forms each other an opening 53.The one-body molded formation main handle 50 of holding part 51 and connecting portion 52, has increased the intensity of main handle 50, and while avoiding using, stress too concentrates on holding part 51 and causes holding part 51 to be lost, and main handle 50 is had to protective effect.
Holding part 51 is at least 100mm along the longitudinal length of housing.The cross sectional shape of holding part 51 is cylindrical, and its diameter is at least 30mm.In present embodiment, the diameter of section of holding part 51 is 38mm.So the adult user of the overwhelming majority can cosily grip holding part 51, thereby has facilitated user's operation and control.
Motor 20 is horizontally placed in the second housing 14, motor 20 be placed in the second housing 14 and the driving shaft of motor 20 with the longitudinal axis of housing is parallel or coincidence.
The driving shaft of motor 20 comprises motor drive shaft 21 and motor extending shaft 22, and the first end of motor extending shaft 22 and motor drive shaft 21 are fixedly linked, and the second end is connected with transmission mechanism 30.Motor extending shaft 22, longitudinally through the inside of holding part 51, is delivered to the rotation of the motor drive shaft 21 of holding part 51 first ends at the second end of holding part 51.Between the two ends of the motor drive shaft 21 of motor drive shaft 21 and the second housing 14, be provided with damping device, play the effect of damping.In present embodiment, damping device is specially rubber blanket 211.
In other embodiments, driving shaft also can not comprise motor extending shaft 22, and now motor drive shaft 21 is connected with transmission mechanism 30 through the inside of holding part 51.
In the second housing 14, be also provided with cooling fan 23, cooling fan 23 is arranged at and is positioned on the motor drive shaft 21 of motor 20 away from a side of described main handle 50.
The second housing 14 is provided with some ventilating openings near the position at motor 20 two ends, and ventilating opening comprises air inlet 15 and air outlet 16.Air inlet 15 is arranged at the second housing 14 one end near main handle 50, and air outlet 16 is arranged at the second housing 14 one end away from main handle 50.Air outlet 16 is provided with the gathering sill 17 of depression away from the outside of main handle 50, play the effect of guiding air-out direction.
Under the effect of cooling fan 23, cooling fluid enters the second housing 14 from air inlet 15, flows out, thereby motor 20 is dispelled the heat from air outlet 16.So, in the time that user grips main handle 50, hot blast can not blow to staff, has improved comfortableness.
Transmission mechanism 30 comprises jackshaft 33, output shaft 34 and the eccentric wheel 35 being fixedly connected with output shaft 34.The second end of motor extending shaft 22 has bevel gear, and the first end of bevel gear and jackshaft 33 is rotatedly connected, and the second end and the output shaft 34 of jackshaft 33 are rotatedly connected.Eccentric wheel 35 is fixedly connected with tool section assembly 40.
Jackshaft 33 is converted to the rotation of motor extending shaft 22 rotation of the output shaft vertical with motor extending shaft 22 34.
Output shaft 34 rotates band movable eccentric wheel 35 and rotates, thereby tool section assembly 40 is worked.
Tool section assembly 40 comprises tool section 41 and lower tool section 42.One end of upper tool section 41 and lower tool section 42 is individually fixed on the different parts of eccentric wheel 35.Eccentric wheel 35 drives upper tool section 41 and lower tool section 42 to do relatively reciprocating motion.
In the first housing 12, be provided with the switch 80 for opening motor 20, the holding part 51 of main handle 50 is provided with the first triggering part 511 and cage knob 512.The first triggering part 511 and cage knob 512 are arranged at respectively two sides relative on holding part 51.In present embodiment, the first triggering part 511 is arranged at the bottom of holding part 51, and cage knob 512 is arranged at the top of holding part 51, and now shrub and hedge trimmer 100 also can not comprise assist handle 60, can realize and being hold by one hand.
In the time that the first triggering part 511 is pressed, trigger switch 80, thereby starter 20.Cage knob 512 is for the first triggering part 511 is locked or unlocked, to prevent maloperation.In the time that cage knob 512 is pressed, first triggers part 511 is disengaged locking, thereby can be operated.
Please refer to Fig. 4, first triggers part 511 comprises pressure section 51a and the first operating portion 51b and projection 51d.Between pressure section 51a and the first operating portion 51b, have the first axis hole, the first pivot 51c passes axis hole and the first triggering part 511 is pivotally connected on the first housing 12.
The bottom of holding part 51 is stretched out in the bottom surface of the first operating portion 51b, and projection 51d is positioned at the end face of the first operating portion 51b.
Cage knob 512 comprises connected blocking part 51e and the second operating portion 51f.Between blocking part 51e and the second operating portion 51f, there is the inclination angle that is acute angle, make cage knob 512 entirety be " V " font.Blocking part 51e can by operatively with the projection 51d butt of the first triggering part 511.The second operating portion 51f stretches out the top of holding part 51.
Between blocking part 51e and the second operating portion 51f, have the second axis hole, the second pivot 51g passes the second axis hole and cage knob 512 is pivotally connected on the first housing 12.In the time that cage knob 512 is pressed, described blocking part 51e and projection 51d stagger, and described triggering part 511 can be operated.
Between the pressure section 51a of the first triggering part 511 and switch 80, be also provided with fitting 82, the first end of fitting 82 and housing pivot joint.In the time that the first triggering part 511 is pressed, pressure section 51a compresses the second end of fitting 82 downwards, the downward butt switch 80 of the second end of fitting 82, thereby trigger switch 80.
Please refer to Fig. 5, in another preferred embodiments of the present invention, on the holding part 51 of described main handle 50, be only provided with the first triggering part 511, described assist handle 60 is provided with the second triggering part (not shown), trigger part 511 and second and trigger part while being pressed simultaneously when described first, described motor 20 starts.
Please also refer to Fig. 6, be provided with the chute 84 of horizontal direction in the first housing 12, the first end of fitting 82 is movably connected in chute 84, and the first end of fitting 82 is also connected with the second triggering part by connecting rod 86, and connecting rod 86 is horizontally disposed with.Fitting 82 has away from the primary importance of switch 80 and compresses the second place of switch 80, and in the time that the first triggering part 511 and second triggers part and is all pressed, fitting 82 is transformed into the second place from primary importance, thus trigger switch 80.
In the time that the second triggering part of assist handle 60 is pressed, connecting rod 86 moves forward a segment distance towards the direction of tool section assembly 40, thereby drives fitting 82 along chute 84 to front slide; If when the first triggering part 511 is also pressed simultaneously, pressure section 51a compresses the second end of fitting 82 downwards, the downward butt switch 80 of the second end of fitting 82, thereby trigger switch 80.So, user must operate respectively main handle 50 and assist handle 60 ability trigger switches 80 by two hands, has strengthened safety.
Further, fitting 82 is elastomeric element, is specifically as follows ring-type or the arc part with opening, can realize stroke protection in the time that pressure section 51a compresses fitting 82 downwards.When pressing pressure section 51a, to be enough to trigger switch after 80s, presses pressure section 51a if continue, and fitting 82 itself deformation will occur, and prevent that switch 80 from being damaged by pressure.
Please refer again to Fig. 3, the below of the second housing 14 is connected with power line 110, so can reduce the entire length of shrub and hedge trimmer 100.Power line 110 is also connected with external power source by adapter (not shown) and power extending line (not shown).
Further, the rotating speed of described motor 20 is at least 20000r/min.In present embodiment, the rotating speed of motor 20 is that 28000r/min is to 33000r/min.
Shrub and hedge trimmer 100 in the present embodiment connect tool section assembly 40 accommodating transmission mechanism by the first housing 12, the accommodating drive unit of the second housing 14, between the first housing 12 and the second housing 14, main handle 50 is set, the gravitational equilibrium that makes shrub and hedge trimmer 100 fuselages front and back, has facilitated user's operation.
It may occur to persons skilled in the art that, in the present invention, the concrete structure of shrub and hedge trimmer 100 can have a lot of versions, but the technical characteristics of the used technical solution and the present invention are same or similar, all should be covered by protection domain of the present invention.

Claims (14)

1. shrub and hedge trimmer, comprising:
Housing;
The tool section assembly being connected with described housing;
Be positioned at the drive unit of described housing;
Be arranged at the transmission mechanism in described housing, for connecting described drive unit and described tool section assembly; And
Be arranged at least one switch in housing, for starting or stoping described drive unit;
It is characterized in that: described housing comprises the first housing arranging near tool section assembly and the second housing arranging away from tool section assembly, described transmission mechanism is placed in described the first housing, described drive unit is placed in described the second housing, between described the first housing and the second housing, be provided with main handle, described main handle is provided with at least one the triggering part for triggering described switch.
2. shrub and hedge trimmer according to claim 1, is characterized in that: described drive unit is motor, the driving shaft of described motor parallel with the longitudinal axis of described housing or overlap.
3. shrub and hedge trimmer according to claim 2, is characterized in that: between the driving shaft two ends of described motor and described the second housing, be provided with damping device.
4. shrub and hedge trimmer according to claim 2, is characterized in that: the driving shaft of described motor is longitudinally connected with the transmission mechanism that is positioned at the first housing through the inside of described main handle.
5. shrub and hedge trimmer according to claim 2, is characterized in that: the rotating speed of described motor is at least 20000r/min.
6. shrub and hedge trimmer according to claim 2, is characterized in that: in described the second housing, be provided with cooling fan, described cooling fan is arranged at and is positioned on the driving shaft of described motor away from a side of described main handle.
7. shrub and hedge trimmer according to claim 2, it is characterized in that: described the second housing is provided with some ventilating openings near the position at described motor two ends, described ventilating opening comprises air inlet and air outlet, described air inlet is arranged at described the second housing one end near described main handle, and described air outlet is arranged at described the second housing one end away from described main handle.
8. shrub and hedge trimmer according to claim 7, is characterized in that: described air outlet is provided with the gathering sill of depression away from the outside of described main handle.
9. shrub and hedge trimmer according to claim 1, is characterized in that: on described main handle, be also provided with cage knob, in the time that described cage knob is pressed, described triggering part can be triggered described switch by operation.
10. shrub and hedge trimmer according to claim 9, is characterized in that: described triggering part and cage knob are arranged at respectively two sides relative on described main handle.
11. shrub and hedge trimmer according to claim 9, is characterized in that: described triggering part is pivotally connected in the first housing, trigger part and comprise pressure section, the first operating portion and projection, and described pressure section is used for triggering described switch; Described cage knob is pivotally connected in the first housing, cage knob comprises blocking part and the second operating portion, blocking part can by operatively with trigger the projection butt of part, in the time that described cage knob is pressed, described blocking part and projection stagger, and described triggering part can be operated and trigger described switch.
12. shrub and hedge trimmer according to claim 1, it is characterized in that: described shrub and hedge trimmer also comprise assist handle, described assist handle is arranged on described the first housing, described main handle is provided with the first triggering part, described assist handle is provided with the second triggering part, trigger part and second and trigger part while being all pressed when described first, the switch of described drive unit is triggered.
13. shrub and hedge trimmer according to claim 12, it is characterized in that: described first triggers part is pivotally connected in the first housing, first triggers part comprises pressure section and the first operating portion, described the first triggering part and second triggers between part has fitting and connecting rod, the first end of fitting and first triggers part butt for trigger switch, the second end has pivot, the first end of connecting rod and fitting pivotally connected, the second end is connected with the second triggering part, fitting has away from the primary importance of switch and compresses the second place of switch, when the first triggering part and second triggers part while being all pressed, fitting is transformed into the second place from primary importance, thereby trigger switch.
14. shrub and hedge trimmer according to claim 13, is characterized in that: in described the first housing, be provided with chute, the pivot of described fitting is movably connected in described chute.
CN201210516370.1A 2012-12-05 2012-12-05 Shrub and hedge trimmer Active CN103843597B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105309209A (en) * 2015-11-30 2016-02-10 广西银钢南益制造有限公司 Multiple-degree-of-freedom hedge trimmer
CN105409609A (en) * 2015-12-04 2016-03-23 白云 Handheld electric shear and saw all-in-one machine
CN105981598A (en) * 2015-02-11 2016-10-05 杭州鲁茨科技有限公司 Pruning shears
CN106921263A (en) * 2015-12-24 2017-07-04 南京德朔实业有限公司 Hand-held electric tool
FR3049426A1 (en) * 2016-03-31 2017-10-06 Innovation Fabrication Commercialisation Infaco ERGONOMIC ELECTROPORTATIVE MOTORIZED CUTTING TOOL.
CN107755816A (en) * 2016-08-15 2018-03-06 淳安县龙晨机械有限公司 A kind of Novel grass cutter gear-box

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US5724737A (en) * 1992-11-25 1998-03-10 Black & Decker Inc. Switch mechanism
CN201192004Y (en) * 2008-03-28 2009-02-11 陈寅 Electric edge trimmer
US20100037469A1 (en) * 2008-08-12 2010-02-18 Chubb Richard A Seaweed Trimmer
CN201409330Y (en) * 2009-06-03 2010-02-24 张勤业 Pruning machine
CN102131380A (en) * 2008-08-26 2011-07-20 罗伯特·博世有限公司 Vegetation cutting tool
CN102379218A (en) * 2010-09-03 2012-03-21 泉峰(中国)贸易有限公司 Pruning machine
CN102726222A (en) * 2011-03-16 2012-10-17 安德烈亚斯.斯蒂尔两合公司 Hand-held power tool

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Publication number Priority date Publication date Assignee Title
US5724737A (en) * 1992-11-25 1998-03-10 Black & Decker Inc. Switch mechanism
CN201192004Y (en) * 2008-03-28 2009-02-11 陈寅 Electric edge trimmer
US20100037469A1 (en) * 2008-08-12 2010-02-18 Chubb Richard A Seaweed Trimmer
CN102131380A (en) * 2008-08-26 2011-07-20 罗伯特·博世有限公司 Vegetation cutting tool
CN201409330Y (en) * 2009-06-03 2010-02-24 张勤业 Pruning machine
CN102379218A (en) * 2010-09-03 2012-03-21 泉峰(中国)贸易有限公司 Pruning machine
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105981598A (en) * 2015-02-11 2016-10-05 杭州鲁茨科技有限公司 Pruning shears
CN105309209A (en) * 2015-11-30 2016-02-10 广西银钢南益制造有限公司 Multiple-degree-of-freedom hedge trimmer
CN105309209B (en) * 2015-11-30 2018-04-20 广西银钢南益制造有限公司 A kind of multiple degrees of freedom GREEB HEDGE MACHINE
CN105409609A (en) * 2015-12-04 2016-03-23 白云 Handheld electric shear and saw all-in-one machine
CN106921263A (en) * 2015-12-24 2017-07-04 南京德朔实业有限公司 Hand-held electric tool
CN106921263B (en) * 2015-12-24 2019-08-06 南京德朔实业有限公司 Hand-held electric tool
FR3049426A1 (en) * 2016-03-31 2017-10-06 Innovation Fabrication Commercialisation Infaco ERGONOMIC ELECTROPORTATIVE MOTORIZED CUTTING TOOL.
CN107755816A (en) * 2016-08-15 2018-03-06 淳安县龙晨机械有限公司 A kind of Novel grass cutter gear-box

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Effective date of registration: 20170427

Address after: 215123 Jiangsu Province, Suzhou City Industrial Park East Road, No. 18

Patentee after: Technology (China) Co., Ltd.

Address before: 215123 Jiangsu Province, Suzhou City Industrial Park East Road, No. 18

Patentee before: Baoshide Electric Tools Co., Ltd., Suzhou