CN102511321B - Chain saw - Google Patents
Chain saw Download PDFInfo
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- CN102511321B CN102511321B CN 201110335060 CN201110335060A CN102511321B CN 102511321 B CN102511321 B CN 102511321B CN 201110335060 CN201110335060 CN 201110335060 CN 201110335060 A CN201110335060 A CN 201110335060A CN 102511321 B CN102511321 B CN 102511321B
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Abstract
The invention provides a chain saw, which comprises a cutting element, a supporting plate, a motor and a motor shell, wherein the supporting plate is used for supporting the cutting element, the supporting plate is provided with a supporting plate plane, and the supporting plate can pivot along a fixed axis within the supporting plate plane; the motor is provided with a motor output shaft and is used for driving the cutting element to rotate; the motor shell is used for accommodating the motor; and the chain saw also comprises a guide mechanism which is connected with the motor shell, and theguide mechanism is provided with a longitudinal extension axis; a handle device can operationally do linear movement along the longitudinal extension axis of the guide mechanism; and the handle device is connected with the supporting plate through a connection mechanism, and the connection mechanism ensures that the linear movement of the handle device is converted to the pivot movement of the supporting plate. Since the handle device does the linear movement, operators are comfortable to operate the chain saw in any direction, and fatigue is difficult to cause.
Description
To be the applicant be " chain saw " in the denomination of invention of application on April 20th, 2009 to the application, and application number is dividing an application of 200910137817.2 Chinese invention patent application.
Technical field
The present invention relates to a kind of power tool, especially relate to a kind of chain saw.
Background technology
At present, occur multiple instrument for the plant pruning on the market, for example scissors is used for pruning some relatively tiny branches and leaves.Also have pruner to be commonly used to prune relative thick trees etc. with chain saw.
Traditional chain saw comprises one by chain and is used for the working head that the gripper shoe of support chains forms, chain is driven by motor, rotate around gripper shoe, traditional chain saw also comprises the main handle that is positioned at the working head rear portion, the assist handle between working head and main handle.When cutting, the working head of this traditional chain saw just is subjected to motor-driven usually so that chain rotates around gripper shoe, gripper shoe generally is motionless, in the cutting process, operator one holds main handle, another holds assist handle, carries out smoothly in order to guarantee cutting, and operator's hand need to revolve towards cut direction and add a pressure.When cutting from top to bottom, because machine itself has downward gravity, this traditional chain saw is relatively easy and more laborsaving.If but need from the bottom up cutting, and perhaps needing to cut from the side, the operator will feel relatively to require great effort.
U.S.'s publication application has disclosed a kind of chain saw for US2005/0022388A1 number and has comprised by chain and be used for the working head that the gripper shoe of support chains forms, chain is driven by motor, rotate around gripper shoe, this chain saw also comprises a pair of arm that is pivoted relative to each other around a fixed axis, and working head is installed on one of them arm and can pivots around relative another arm of described fixed axis with this arm.The handle portion that is connected with that each arm is corresponding is held for the operator.In the operating process, thus the relative described handle portion meeting of pivot of operator so that cutting head move so that cut that everything goes well with your work carries out towards cut direction.But this structure is so that in that operation is just not too comfortable in some cases, for example when needing the branch of cutting eminence, operator's application of force is just relatively more difficult; In addition, when on the ground wooden of needs cuttings, the operator just needs the bending operation, if the working time is grown and just is easy to the people is felt fatigue like this.
Summary of the invention
Technical problem to be solved by this invention provides a kind of comfortable chain saw that operates.
In order to address the above problem, the invention provides a kind of chain saw, comprising:
Cutting element;
Be used for supporting the gripper shoe of described cutting element, gripper shoe has the gripper shoe plane, and gripper shoe can pivot around a fixed axis in this gripper shoe plane;
Motor has the described cutting element of driving that motor output shaft is used for rotation;
Motor shell is used for accommodating described motor;
Described chain saw also comprises a guiding mechanism that is connected with described motor shell, and this guiding mechanism has a longitudinal extending axis;
The exercisable longitudinal extending axis along this guiding mechanism of handle apparatus is done linear movement;
Link to each other by bindiny mechanism between handle apparatus and the gripper shoe, this bindiny mechanism is so that the linear movement of handle apparatus is converted to the pivoting action of gripper shoe.
In disclosed chain saw, because handle apparatus is to do linear movement, so meeting is so that the operator can be pleasant at what direction operation.
Preferred implementation of the present invention is also following several:
Preferably, bindiny mechanism of the present invention is slider-crank mechanism.
Preferably, slider-crank mechanism of the present invention comprises driving link, connecting rod and driven member, described driving link is born by described handle apparatus, described driven member is fixedly connected with described gripper shoe, described connecting rod and is connected with driven member with driving link in hinged mode respectively between described driving link and driven member.
Preferably, driven member of the present invention is V-shaped setting roughly, and the one side of being somebody's turn to do " V " shape driven member is connected in hinged mode with connecting rod, and another side is fixedly connected with gripper shoe, and " V " shape bottom pivots around described fixed axis.
Preferably, fixed axis of the present invention is the axis of motor output shaft.
Preferably, chain saw of the present invention comprises transmission mechanism, this transmission mechanism is between the output shaft and cutting element of motor, this transmission mechanism comprises sprocket wheel, this sprocket wheel has the sprocket wheel rotation, sprocket wheel can rotate around the sprocket wheel rotation, and sprocket wheel cooperates to drive this cutting element with described cutting element and rotates around described gripper shoe, and described fixed axis is the rotation of sprocket wheel.
Preferably, handle apparatus of the present invention comprises guide rod section and holding part.
Preferably, guide rod of the present invention section is the slender type bar.
Preferably, roughly be D shape in holding part of the present invention.
Preferably, guiding mechanism of the present invention is the slender type pilot sleeve, and this pilot sleeve has longitudinal extending axis, and this pilot sleeve is used for accommodating described guide rod section, so that this guide rod section can be along the longitudinal extending axis linear movement of described pilot sleeve.
Preferably, be provided with locking switch between pilot sleeve of the present invention and the guide rod section.
Preferably, establish gauge tap on the D shape of the present invention holding part.
Preferably, two ends, D shape holding part of the present invention symmetry establishes safety switch.
Preferably, the chain saw of stating of the present invention comprises the U-shaped guard shield.
Preferably, U-shaped guard shield of the present invention comprises the first end face and the second end face, this first end face and the second end face are positioned at same plane, suppose a face perpendicular to longitudinal extending axis and so that described fixed axis passes through this face, the point on the outermost of cutting element is less than or equal to the plane at the first end face and the second end face place to the ultimate range of the face of described supposition to the ultimate range of the face of described supposition.
Preferably, bindiny mechanism of the present invention is pinion and rack, this pinion and rack comprises the tooth bar that is fixedly connected with handle apparatus and the gear that is fixedly connected with gripper shoe, and the wheel and rack engagement is so that the rectilinear motion of tooth bar can be converted to the pivoting action of gear.
Preferably, bindiny mechanism of the present invention is pulley mechanism, pulley mechanism comprises pulley and rope, rope is placed on the pulley, one end of rope is fixedly connected with handle apparatus, the other end of rope is fixedly connected on the motor shell, and pulley is fixedly connected with gripper shoe, and this connection is so that the linear movement of handle apparatus is converted to the pivot of gripper shoe.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Fig. 1 is the stereogram of the chain saw that discloses of first embodiment of the invention.
Fig. 2 is the interior schematic diagram of the chain saw that discloses of Fig. 1.
Fig. 3 is the fundamental diagram of the bindiny mechanism of the chain saw that discloses of Fig. 1.
Fig. 4 is the schematic diagram of the transmission mechanism of the chain saw that discloses of Fig. 1.
Fig. 5 is the schematic diagram of the retaining mechanism of the chain saw that discloses of Fig. 4.
Fig. 6 A is the state diagram of chain saw when not working that Fig. 1 discloses.
Fig. 6 B is the chain saw state diagram in the course of the work that Fig. 6 A discloses.
The state diagram that Fig. 6 C is the chain saw that discloses of Fig. 1 will power cut-off the time.
The schematic diagram that Fig. 7 is the chain saw that discloses of Fig. 1 when cutting is positioned over workpiece on the floor.
Fig. 8 is the interior schematic diagram of the chain saw that discloses of second embodiment of the invention.
Fig. 9 is the interior schematic diagram of the chain saw that discloses of third embodiment of the invention.
Among the figure:
10. chain saw 12. working heads 14. gripper shoes
16. flexible chain 17. gripper shoe planes 18. motors
20. motor output shaft 24. motor shell 26.U shape guard shields
28. upper shield 30. lower shields 31. connecting portions
32. the first receiving space 34. second receiving spaces 36. sidewalls
38. opening 40. first abutment edges 42. sidewalls
44. the second abutment edge 46. the 3rd abutment edge 47.U shape abutment edge
48. the first end face 50. second end faces 52. pilot sleeves
54. accommodate cavity 56. handle apparatus 58. guide rod sections
60. holding part 62. grips limit 64. fillets
66. gauge tap 68. safety switches 70. slider-crank mechanisms
70a. rack-and-pinion 70b. pulley mechanism 72. driving links
72a. tooth bar 72b. pulley 74. connecting rods
74a. gear 74b. rope 76. driven members
76b. connecting rod 78.V shape is 80.V shape another side on one side
82. transmission mechanism 84. pinions 86. gear wheels
88. jackshaft 90. sprocket wheels 92. locking switch
94. shift knob 98. first locking ends 100. second locking ends
102. the first draw-in groove 104. second draw-in grooves 106. pivot centers
X1. motor output shaft axis X 2. longitudinal extending axis X3. jackshaft axis
Embodiment
The first embodiment
Referring to figs. 1 through Fig. 2, a kind of chain saw 10 comprises the working head 12 for processing work, and working head 12 comprises gripper shoe 14 and the cutting element that is installed on the gripper shoe 14.In the present embodiment, cutting element is flexible chain 16, and this flexible chain 16 is installed on the periphery of gripper shoe 14, and can rotate around this gripper shoe 14.The plane at gripper shoe 14 places is the gripper shoe plane.
Chain saw 10 also comprises motor 18, and motor 18 is used for driving working head 12, so that flexible chain 16 rotates around gripper shoe 14.Motor 18 has motor output shaft 20, and this motor output shaft 20 has motor output shaft axis X 1, thereby this motor output shaft 20 drives flexible chain 16 around 1 rotation of motor output shaft axis X it is rotated around gripper shoe 14.
One end of motor shell 24 is connected with U-shaped guard shield 26, one side this U-shaped guard shield 26 is upper shield 28, the another side of U-shaped guard shield 26 is lower shield 30, and the bottom of U-shaped guard shield 26 is connecting portion 31.This U-shaped guard shield 26 is connected with motor shell 24 by the connecting portion 31 on the bottom.Upper shield 28 has the first receiving space 32, and when chain saw 10 was in off position, working head 12 was contained in the first receiving space 32 of upper shield 28 fully.Lower shield 30 has the second receiving space 34, in the course of work, when cutting work approach to finish when cutting to the end, working head 12 can second receiving space 34 that be accommodated in lower shield 30 of part in.Upper shield 28 has two sidewalls 36, and gripper shoe 14 is between two sidewalls 36, and sidewall 36 is provided with some openings 38, the current location of the purpose that opening 38 is set is the handled easily person can clearly see working head.Sidewall 36 has the first abutment edge 40 in the side towards lower shield.Lower shield 30 has two sidewalls 42, working head 12 exercisable being contained between two sidewalls 42, sidewall 42 is provided with the second abutment edge 44 in the side towards upper shield 28, and connecting portion 31 is provided with the 3rd abutment edge 46, the three abutment edges 46 and is used for connecting the first abutment edge 40 and the second abutment edge 44.The first abutment edge 40, the second abutment edge 44 and the 3rd abutment edge 46 form a roughly abutment edge 47 of U-shaped, and this U-shaped abutment edge 47 is used for when work against workpiece.
The other end of motor shell is connected with guiding mechanism, and in the present embodiment, guiding mechanism is slender type pilot sleeve 52, and this pilot sleeve 52 has longitudinal extending axis X2.Pilot sleeve 52 has the cavity of accommodating 54.
Chain saw 10 also comprises handle apparatus 56, and handle apparatus 56 comprises guide rod section 58 and holding part 60, and guide rod section 58 is the slender type bar, and guide rod section 58 is contained in accommodating in the cavity 54 of pilot sleeve 52.Holding part 60 roughly is D shape.One side of D shape holding part 60 is for gripping limit 62, and another side is fillet 64, and the inboard that grips limit 62 is provided with gauge tap 66, and gauge tap 66 is electrically connected with motor 18 and is used for controlling the startup of motor 18 and stopping.The two ends that grip limit 62 are provided with safety switch 68, and the two ends that are arranged at gripping limit 62 of safety switch 68 symmetries are so that all more convenient with left hand or right-hand operated.Fillet 64 links to each other with guide rod section 58.
Be provided with bindiny mechanism between handle apparatus 56 and the working head 12, in the present embodiment, bindiny mechanism is direct connecting handle device 56 and gripper shoe 14, and this bindiny mechanism is so that the linear movement of handle apparatus 56 is converted to the pivoting action of gripper shoe 14.In the present embodiment, bindiny mechanism is slider-crank mechanism 70.Slider-crank mechanism 70 comprises driving link 72, connecting rod 74 and driven member 76.Driving link 72 is born by the guide rod section 58 of handle apparatus 56, when the operator when the direction of working head 12 pushes away holding part 60, linear movement can be done along the longitudinal extending axis X2 of pilot sleeve 52 by guide rod section 58.Driven member 76 is fixedly connected with gripper shoe 14, and connecting rod 74 and is connected with driven member with hinged mode and driving link 72 respectively and is connected between driving link 72 and driven member 76.Driven member 76 is V-shaped setting roughly, V-arrangement that should " V " shape driven member 76 78 is connected in hinged mode with connecting rod 74 on one side, V-arrangement another side 80 is fixedly connected with gripper shoe 14, pivotable being installed on the motor output shaft 20 in " V " shape bottom, this mounting means is so that driven member 76 can be around motor output shaft axis X 1 rotation of motor output shaft 20, because driven member 76 is fixedly connected with gripper shoe 14, when driven member 76 during around motor output shaft axis X 1 rotation, gripper shoe 14 also turns at the gripper shoe plane internal rotation around motor output shaft axis X 1 simultaneously.
Be the motion principle figure of slider-crank mechanism 70 with reference to Fig. 3, driving link 72 is done rectilinear motion, when driving link 72 moves to the second place (position of dotted line representative) from primary importance (position of solid line representative), driven member 76 is pivoted to the second place (position of dotted line representative) from primary importance (position of solid line representative), arrow A 1 represents the direction of motion of driving link 72, and arrow A 2 represents the direction of motion of driven member 76.
With reference to Fig. 4, chain saw 10 comprises transmission mechanism 82 between motor 18 and working head 12, and transmission mechanism 82 comprises that pinion 84 is located on the motor output shaft 20 and can be with motor output shaft 20 around 1 rotation of motor output shaft axis X.Transmission mechanism 82 also comprises gear wheel 86 and pinion 84 engagements, gear wheel 86 is installed on the jackshaft 88, jackshaft 88 has jackshaft axis X 3, sprocket wheel 90 also is installed on the jackshaft 88, sprocket wheel 90 has the sprocket wheel rotation, in the present embodiment, the sprocket wheel rotation is jackshaft axis X 3, and sprocket wheel 90 can be around 3 rotations of jackshaft axis X with gear wheel 86.Sprocket wheel 90 can drive flexible chain 16 with flexible chain 16 engagements and rotate around gripper shoe 14.
During work, open motor 18, motor output shaft 20 will rotate, pinion 84 is with motor output shaft 20 rotations, pinion 84 rotarily drives gear wheel 86 rotations, because gear wheel 86 and sprocket wheel 90 coaxial settings so gear wheel 86 rotations can be rotated by band movable sprocket 90, rotate around gripper shoe 14 thereby sprocket wheel 90 rotations drive flexible chain 16.Simultaneously, the operator holds the holding part 60 of handle apparatus 56, direction driving handle device 56 towards working head 12, guide rod section 58 can move linearly along the longitudinal extending axis X2 of pilot sleeve 52, effect by connecting rod 74, driven member 76 can move pivotally around motor output shaft 20, moves pivotally around motor output shaft 20 in the gripper shoe plane thereby drive gripper shoe 14.In the present embodiment, by towards working head 12 direction driving handle devices 56, thereby gripper shoe 14 is pivoted realize cutting, it should be noted that, those of ordinary skills also can realize realizing cutting by towards away from working head 12 direction handle devices 56 so that gripper shoe 14 pivots by the position of simple conversion slider-crank mechanism 70.
Simultaneously with reference to Fig. 5, be provided with locking switch 92 between the guide rod section 58 of pilot sleeve 52 and handle apparatus 56, locking switch 92 comprises two shift knobs 94 and the latch segment between two shift knobs 96 that is arranged at respectively both sides.Latch segment 96 comprises the first locking end 98 and the second locking end 100, is provided with the first draw-in groove 102 and the second draw-in groove 104 in the guide rod section 58 and is used for respectively accommodating the first locking end 98 and the second locking end 100.Latch segment 96 has a pivot center 106.By pressing any one shift knob 94, latch segment 96 will be around the pivot center 106 pivots, thereby so that the first locking end 98 and the second locking end 100 shift out from the first draw-in groove 102 and the second draw-in groove 104 respectively, thereby so that the guide rod section 58 of handle apparatus 56 can move with respect to pilot sleeve 52.Otherwise handle apparatus 56 is fixed in certain position with respect to pilot sleeve 52.
With reference to Fig. 6 A, Fig. 6 B and Fig. 6 C are the working state schematic representation of chain saw 10, and Fig. 6 A is the schematic diagram of chain saw when being in off working state, and at this moment, working head 12 is contained in the upper shield 28 fully.With reference to Fig. 6 B, towards A to driving handle device 56, working head 12 will be along B to pivot, and begins workpiece is cut, and exposes gradually from upper shield 28.With reference to Fig. 6 C, continue towards A to driving handle device 56, working head 12 continues along B to pivot, thus part enter lower shield 30, and finish the cutting to workpiece.
With further reference to Fig. 6 B and Fig. 7, working head 12 comprise the approach end of a contiguous motor output shaft 20 and one away from motor output shaft 20 away from end, refer to the periphery of flexible chain away from the outermost layer of end.The pivotal axis of gripper shoe 14 is motor output shaft axis X 1.Suppose a plane M1 herein, plane M1 is perpendicular to longitudinal extending axis X2, and so that motor output shaft axis X 1 is positioned at this plane M1.Working head is L1 away from the point of end on the outermost layer to the maximum distance of plane M1; If the second end face 50 of the first end face 48 of upper shield 28 and lower shield 30 is at same plane, the plane at the second end face 50 places of the first end face 48 of upper shield 28 and lower shield 30 is L2 to the distance of plane M1 so; If the second end face 50 of the first end face 48 of upper shield 28 and lower shield 30 is at same plane, the point on any among both of the second end face 50 of the first end face 48 of upper shield 28 or lower shield 30 is L2 to the maximum distance of plane M1.
In the present embodiment, distance L 1 is less than distance L 2.The benefit of design is like this; be positioned over (with reference to Fig. 7) on the floor when being cut workpiece; the operator is that the direction that the longitudinal direction of chain saw 10 is approximately perpendicular to the floor is placed chain saw 10 according to the direction such as Fig. 7 place; the first end face 48 of upper shield 28 and the second end face of lower shield 30 contact with the floor at this moment; thereby chain saw 10 is supported; like this, working head 12 can not run into the floor away from the outermost layer of end, and then plays the effect of Protection head 12.Certainly, if instrument on the meadow or sand ground/earth use on the ground, distance L 1 also can be substantially equal to L2 even be slightly larger than L2.The outermost layer away from end of working head 12 might be run into soft meadow or sand ground or earth ground in this case, but can not produce working head 12 very large damage is not arranged.
The second embodiment
With reference to Fig. 8, present embodiment is substantially the same with the first embodiment, and difference is that slider-crank mechanism 70 is replaced by pinion and rack 70a.This pinion and rack 70a comprises the tooth bar 72a that is fixedly connected with handle apparatus 56, and with the gear 74a that is fixedly connected with gripper shoe 14, by pushing away or handle device 56, drive gripper shoe 14 pivots thereby meeting is so that gear 74a pivots.
The 3rd embodiment
With reference to Fig. 9, present embodiment is substantially the same with the first embodiment, and difference is that slider-crank mechanism 70 is replaced by pulley mechanism 70b.Pulley mechanism 70b comprises pulley 72b and rope 74b, rope 74b is placed on the pulley 72b, the end of rope 74b is fixedly connected with handle apparatus 56, the other end of rope 74b is fixedly connected on the motor shell 24, pulley 72b is fixedly connected with gripper shoe 14 by connecting rod 76b, and during operation, the operator is along C to pulling handle apparatus 56, pulley 72b will drive connecting rod 76b and pivot, and pivots thereby connecting rod 76b drives gripper shoe 14.
Claims (10)
1. chain saw comprises:
Working head comprises cutting element, and the gripper shoe that is used for supporting described cutting element;
Motor has motor output shaft, is used for the described cutting element of driving of rotation;
Motor shell is used for accommodating described motor;
The U-shaped guard shield is used for accommodating described cutting element;
Handle apparatus and is connected by bindiny mechanism between the gripper shoe, and this bindiny mechanism is so that the linear movement of handle apparatus is converted to the pivoting action of gripper shoe;
It is characterized in that: described U-shaped guard shield comprises the first receiving space and the second receiving space, and described chain saw is under the off working state, and described working head is contained in the first receiving space fully.
2. chain saw according to claim 1 is characterized in that: in running order time of described chain saw, institute
Stating working head is accommodated in the second receiving space at least in part.
3. chain saw according to claim 1, it is characterized in that: described U-shaped guard shield comprises upper shield and lower shield, and described the first receiving space is positioned at described upper shield, and described the second receiving space is positioned at described lower shield.
4. chain saw according to claim 3, it is characterized in that: described upper shield and lower shield lay respectively at the both sides of U-shaped guard shield, and the bottom of U-shaped guard shield is connecting portion, and the U-shaped guard shield is connected with motor shell by connecting portion.
5. chain saw according to claim 4, it is characterized in that: described upper shield comprises two upper side walls, described lower shield comprises two lower wall.
6. chain saw according to claim 5, it is characterized in that: described upper side wall is provided with some openings.
7. chain saw according to claim 5, it is characterized in that: described upper side wall is provided with the first abutment edge towards a side of lower shield, described lower wall is provided with the second abutment edge towards a side of upper shield, described connecting portion is provided with the 3rd abutment edge, and described the 3rd abutment edge connects first, second abutment edge and forms the U-shaped abutment edge.
8. chain saw according to claim 5, it is characterized in that: described upper shield has the first end face, described the first end face and two upper side walls form the first receiving space, and described lower shield has the second end face, and described the second end face and two lower wall form the second receiving space.
9. chain saw according to claim 8, it is characterized in that: described the first end face is coplanar or parallel with the second end face.
10. chain saw according to claim 1, it is characterized in that: described cutting element is flexible chain, and described flexible chain is installed on the periphery of gripper shoe, and can rotate around gripper shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110335060 CN102511321B (en) | 2009-02-20 | 2009-04-20 | Chain saw |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910008072.X | 2009-02-20 | ||
| CN200910008072 | 2009-02-20 | ||
| CN 201110335060 CN102511321B (en) | 2009-02-20 | 2009-04-20 | Chain saw |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101378172A Division CN101811312B (en) | 2009-02-20 | 2009-04-20 | Chain saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102511321A CN102511321A (en) | 2012-06-27 |
| CN102511321B true CN102511321B (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110335060 Active CN102511321B (en) | 2009-02-20 | 2009-04-20 | Chain saw |
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| CN (1) | CN102511321B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104285694B (en) * | 2013-07-19 | 2017-07-18 | 苏州宝时得电动工具有限公司 | Chain saw |
| CN106671030B (en) * | 2016-12-28 | 2023-07-21 | 浙江亚特电器股份有限公司 | Multifunctional electric tool |
| CN109121793B (en) * | 2018-10-30 | 2024-03-29 | 济南园林开发建设集团有限公司 | Branch trimming means that greening construction maintenance was used |
| CN112428352B (en) * | 2020-11-20 | 2021-11-05 | 永康市南征工贸股份有限公司 | Prevent chain rupture and hinder electronic chain saw of people |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004188724A (en) * | 2002-12-10 | 2004-07-08 | Kazuo Jiroudou | Chain saw |
| GB2404613A (en) * | 2003-07-14 | 2005-02-09 | David Jarman | A vegetation pruning device |
| US7152328B2 (en) * | 2003-10-23 | 2006-12-26 | David Eugene Champlin | Electric pole saw |
| US20070054542A1 (en) * | 2005-09-06 | 2007-03-08 | Champlin David E | Uni-body power tool |
| DE202006009817U1 (en) * | 2006-06-21 | 2007-10-25 | Dolmar Gmbh | brake handle |
| JP5042577B2 (en) * | 2006-09-21 | 2012-10-03 | 株式会社 マルナカ | Working machine |
| CN201069928Y (en) * | 2007-06-30 | 2008-06-11 | 陈勇 | Scissors type lopping shears |
| CN201192008Y (en) * | 2008-03-28 | 2009-02-11 | 陈寅 | Electric bar-chain saw |
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| CN102511321A (en) | 2012-06-27 |
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