CN102487739B - Plant trimmer - Google Patents
Plant trimmer Download PDFInfo
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- CN102487739B CN102487739B CN201110366133.7A CN201110366133A CN102487739B CN 102487739 B CN102487739 B CN 102487739B CN 201110366133 A CN201110366133 A CN 201110366133A CN 102487739 B CN102487739 B CN 102487739B
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Abstract
The invention provides a plant trimmer, which comprises a cutting element, a support plate, a motor, a first handle unit, a second handle unit, a locking mechanism and a connecting mechanism. The support plate is used for supporting the cutting element. The motor is used for driving the cutting element. The locking mechanism is used for detachably and fixedly connecting the second handle unit to the first handle unit. The connecting mechanism is arranged between the first handle unit and the support plate. The first handle unit or second handle unit can be operated in linear motion along a direction towards or away from the support plate, and linear motion of the first handle unit or second handle unit is converted into swinging motion of the support plate by means of the connecting mechanism.
Description
The application is applicant is " plant pruning machine " in the denomination of invention that on July 17th, 2009 applies for, application number is the divisional application of the Chinese invention patent application of 200910161624.0.
Technical field
The present invention relates to a kind of plant pruning machine, especially relate to a kind of plant pruning machine with extension rod, such as, there is the chain saw of extension rod.
Background technology
At present, market occurs the multiple instrument pruned for plant, such as scissors is for pruning some relatively tiny branches and leaves.Pruner is also had to be commonly used to prune relative thick trees etc. with chain saw.
Traditional chain saw comprises a working head be made up of with the gripper shoe being used for support chains chain, chain drives by motor, rotate around gripper shoe, traditional chain saw also comprises the main handle being positioned at working head rear portion, the assist handle between working head and main handle.When cutting, the working head of this traditional chain saw usually just drives by motor and chain is rotated around gripper shoe, gripper shoe is generally motionless, in cutting process, operator one holds main handle, another holds assist handle, and in order to ensure that cutting is carried out smoothly, the hand of operator needs to revolve towards cut direction to add a pressure.When cutting from top to bottom, because machine itself has downward gravity, this traditional chain saw relatively easily and more laborsaving.If but need to cut from the bottom up, or need to cut from the side, operator will feel to compare effort.
No. US2005/0022388A1, US publication application discloses a kind of chain saw and comprises the working head be made up of with the gripper shoe being used for support chains chain, chain drives by motor, rotate around gripper shoe, this chain saw also comprises a pair arm be pivoted relative to each other around a fixed axis, and working head to be installed on one of them arm and can with this arm around described fixed axis another arm pivotable relatively.What each arm was corresponding be connected with, and a handle portion is held for operator.In operating process, handle portion described in the pivotable that operator is relative can make cutting head move towards cut direction thus make cutting everything goes well with your work carries out.But this structure makes operation is just not too comfortable in some cases, such as, when needing the branch cutting eminence, operator's force is just more difficult; In addition, when needing to cut wood on the ground, operator just needs bending to operate, if working time longer being just easy to makes people feel fatigue like this.
In addition, if will cut the branch on higher trees, this traditional chain saw generally includes an extension rod, extension rod is fixedly connected on the main handle of chain saw by dismountable usually, and during operation, operator holds extension rod, towards cut direction force, this operation often compares effort.
No. 7152328B2, US Patent No. discloses a kind of chain saw and comprises working head, main handle and extension rod, when needs cutting higher position branch, extension rod is fixedly connected on main handle by user, be electrically connected between extension rod and main handle, just can operate as long as user holds extension rod, but this chain saw is when operating, need operator to apply a very large power towards cut direction, operating process can be made to compare effort.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind ofly operates comfortable plant pruning machine.
In order to solve the problem, the invention provides a kind of plant pruning machine, comprising:
Cutting element;
For supporting the gripper shoe of described cutting element;
For driving the motor of described cutting element;
First handle assembly;
Second handle assembly;
Retaining mechanism is for being fixedly connected on described first handle assembly by dismountable for described second handle assembly;
Bindiny mechanism is established between first handle assembly and gripper shoe;
Moving linearly along the direction towards or away from gripper shoe of first handle assembly or second handle component operable, described bindiny mechanism makes the linear movement of first handle assembly or second handle assembly be converted to the swing of gripper shoe.
In disclosed plant pruning machine, because first handle assembly and second handle assembly are all do linear movement, so the operation of operator can be made pleasant.
Preferred implementation of the present invention can also be following several:
Preferably, plant pruning machine of the present invention also comprises abutment walls, and this abutment walls is used for operationally against workpiece.
Preferably, plant pruning machine of the present invention also comprises U-shaped guard shield.
Preferably, U-shaped guard shield of the present invention has U-shaped inner side edge, and described U-shaped guard shield also comprises U-shaped jaw, and this U-shaped jaw is dismountable to be connected on U-shaped inner side edge.
Preferably, the inner side of U-shaped jaw of the present invention is provided with tooth.
Preferably, U-shaped jaw of the present invention is made up of steel.
Preferably, first handle assembly of the present invention comprises guide rod portion, described plant pruning machine comprises main casing, this main casing has handle host cavity for accommodating described guide rod portion, described handle host cavity has longitudinal extending axis X2, and the exercisable longitudinal extending axis along handle host cavity in guide rod portion moves linearly.
Preferably, first handle assembly of the present invention comprises holding part, and this holding part is D shape.
Preferably, first handle assembly holding part of the present invention comprises the gripping limit of linearly shape and curved fillet, and this first handle assembly holding part is connected with first handle assembly guide rod portion by this fillet.
Preferably, described gripping limit of the present invention both ends symmetry be provided with safety switch.
Preferably, gauge tap is provided with inside gripping limit of the present invention.
Preferably, bindiny mechanism of the present invention is Planar Linkages.
Preferably, Planar Linkages of the present invention comprises driving link, connecting rod and driven member, described driving link is born by described first handle assembly, described driven member is fixedly connected with described gripper shoe, described connecting rod between described driving link and driven member, and is connected with driving link and driven member in hinged mode respectively.
Preferably, plant pruning machine of the present invention comprises main casing, described connecting rod comprises the first connecting rod hinged with driving link, the second connecting rod hinged with first connecting rod, one end and the first connecting rod of second connecting rod are hinged, and what the other end of second connecting rod was pivoted relative to each other is connected on main casing, the third connecting rod hinged with second connecting rod, one end of third connecting rod and the middle part of second connecting rod hinged, the other end and the driven member of the 3rd connecting rod are hinged.
Preferably, plant pruning machine of the present invention comprises main casing, between main casing and described driven member, be provided with torsion spring, and one end of torsion spring is fixedly connected with main casing, and the other end of torsion spring is fixedly connected with driven member.
Preferably, plant pruning machine of the present invention comprises position-limit mechanism, is used for limiting the swing of gripper shoe.
Preferably, plant pruning machine of the present invention comprises main casing, described position-limit mechanism comprises the groove be located on main casing and the protruded stigma be fixedly connected with gripper shoe, and the two ends of groove are respectively the first stop face and the second stop face, and described protruded stigma is exercisable to be coordinated with the first stop face and the second stop face.
Preferably, groove of the present invention is kidney slot, and this kidney slot along the circumferential direction extends.
Preferably, plant pruning machine of the present invention comprises motor, and motor is fixedly connected with motor bracket, and described protruded stigma extends from motor bracket and passes described groove.
Preferably, kidney slot of the present invention is along the circumferential direction equally spaced is provided with three, and described protruded stigma is along the circumferential direction equally spaced is provided with three, and these three protruded stigmas are each passed through in described three kidney slots.
Preferably, second handle assembly of the present invention comprises second handle assembly holding part and second handle assembly extension, described second handle assembly extension comprises first end and the second end, described first end is connected with second handle assembly holding part, described second end is connected with described first handle assembly, and described retaining mechanism is between described second end and described first handle assembly.
Preferably, second handle assembly of the present invention comprises second handle assembly holding part and second handle assembly extension, and described second handle assembly holding part is D shape.
Preferably, first handle assembly of the present invention comprises holding part, and this holding part is provided with handle accepting hole, and described retaining mechanism comprises lock bracket, and this lock bracket is dismountable to be contained in this handle accepting hole.
Preferably, lock bracket of the present invention is provided with the first mating surface, and the side of the holding part of described first handle assembly is provided with the second mating surface, and this first mating surface and the second mating surface match, and both mating shapes.
Preferably, retaining mechanism of the present invention also comprises locking knob, and the exercisable holding part of first handle assembly that makes of this locking knob is clamped between described lock bracket and locking knob.
Preferably, the opposite side of the holding part of first handle assembly of the present invention is provided with the 3rd mating surface, and described locking knob is provided with the 4th mating surface, and the 4th mating surface is selectable to match with the 3rd mating surface.
Preferably, first handle assembly of the present invention comprises guide rod portion, dismountablely in this guide rod portion be fixedly connected with C shape support, described chain saw comprises main casing, this main casing is provided with slotted opening, and described C shape support stretches out from slotted opening, and described C shape support can move along described slotted opening, described second handle assembly comprises extension, and this extension is supported on described C shape support.
Preferably, one in first handle assembly of the present invention and second handle assembly is provided with plug, and another in both is provided with socket, by connecting of plug and socket, first handle assembly and second handle assembly is electrically connected.
Preferably, plant pruning machine of the present invention comprises main casing, described plant pruning machine also comprises the sleeve be slidably installed on described second handle assembly, described plant pruning machine comprises rope further, one end of described rope is connected on described main casing, and the other end of described rope is connected on described sleeve.
Preferably, main casing of the present invention is provided with grab, and one end of described rope is hung on described grab.
Preferably, sleeve of the present invention is provided with elastic cam folder, is clamped in wherein by rope for exercisable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, further detailed description is done to the present invention.
Fig. 1 is the stereogram of disclosed chain saw.
The interior schematic diagram of the chain saw that Fig. 2 discloses for Fig. 1.
The exploded view of the main casing of the chain saw that Fig. 3 discloses for Fig. 1.
The stereogram of the first half housings of the chain saw that Fig. 4 A discloses for Fig. 3.
The stereogram of the second half housings of the chain saw that Fig. 4 B discloses for Fig. 3.
The stereogram of the driven member of the chain saw that Fig. 5 discloses for Fig. 1.
The motion principle figure of the bindiny mechanism of the chain saw that Fig. 6 discloses for Fig. 1.
The stereogram of the position-limit mechanism of the chain saw that Fig. 7 discloses for Fig. 1.
The state diagram of chain saw when not working that Fig. 8 A discloses for Fig. 1.
The chain saw state diagram in the course of the work that Fig. 8 B discloses for Fig. 8 A.
The chain saw that Fig. 8 C discloses for Fig. 1 will power cut-off time state diagram.
The chain saw that Fig. 9 discloses for Fig. 1 is with stereogram during second handle assembly.
The partial enlarged drawing of the retaining mechanism of the chain saw that Figure 10 discloses for Fig. 9.
The retaining mechanism of the chain saw that Figure 11 discloses for Fig. 9 is not arranged on the partial exploded view on first handle assembly.
The partial exploded view of the retaining mechanism of the chain saw that Figure 12 discloses for Fig. 9.
The schematic diagram of chain saw when locking knob is in primary importance that Figure 13 A discloses for Fig. 9.
The schematic diagram of chain saw when locking knob is in the second place that Figure 13 B discloses for Fig. 9.
The stereogram of the C shape support of the chain saw that Figure 14 discloses for Fig. 9.
The partial perspective view of the chain saw band rope that Figure 15 discloses for Fig. 9.
In figure:
20. chain saw 22. working head 24. gripper shoes
26. flexible chain 28. motor 30. motor output shafts
X1. motor output shaft axis 32. motor shell 34. main casing
34a. the first half housing 34b. the second half housing 35. case lid
35a. access hole 36. first handle assembly 38.U shape guard shield
40a. first handle host side, handle host side, 38a. first working head host side 40.
40b. second handle host side, 42a. first connecting portion 38b. second working head host side
42b. second connecting portion 43a. first U-shaped opening 43b. second U-shaped opening
44a. first upper side wall 46a. first lower wall 44b. second upper side wall
46b. second lower wall 48. first receiving space 50. second receiving space
52. opening 54.U shape inner side edge 54a. first U-shaped inner side edges
56.U clamp mouth 56a. first U-shaped jaw 58a. tooth
54b. second U-shaped inner side edge 56b. second U-shaped jaw 58b. tooth
59. handle host cavity X2. longitudinal extending axis 60. guide rod portions
62. holding parts 64. grip limit 66. fillet
68. gauge tap 70. safety switch 72. Planar Linkages
76. first connecting rod 78. second connecting rod 80. third connecting rods
82. driven member 84.V shapes are 86.V shape another side on one side
90. protruded stigma 92. first accepting holes bottom 88.V shape
94. kidney slot 96. installing hole 98. second accepting holes
100. first stop face 106., stop face 102. second torsion springs
108. aperture 110. transmission mechanism 112. sprocket wheels
116. second handle assembly 118. second handle assemblies grip 120. second handle assemblies and extend
Portion of portion
122. first end 124. second end 126. retaining mechanisms
128. grip limit 130. fillet 132. gauge tap
134. safety switch 144. lock bracket 146.C shape clamps
148.C shape clamp clip 150. holes for clamping 152. handle accepting hole
154. first mating surface 156. second mating surface 158. locking knobs
159. the 3rd mating surface 160. operating portion 162. main parts
Mating surface 168. knob resettlement section, 164. mating parts 166. the 4th
The long and narrow opening of the larger collecting sky 174. of 172. diameters is led in the collecting that 170. diameters are less
Vestibule
176.C shape support 177a. plug 177b. socket
177c. plug 178. sleeve 180. rope
182. grab 184. wall 186. guide grooves
188. cams press from both sides 190. cam surfaces
Embodiment
Fig. 1 to Fig. 2 discloses a kind of plant pruning machine, and in an embodiment of the invention, plant pruning machine is chain saw 20, and chain saw 20 comprises the working head 22 for processing work, the cutting element that working head 22 comprises gripper shoe 24 and is installed in gripper shoe 24.In the present embodiment, cutting element is flexible chain 26, and this flexible chain 26 is installed on the periphery of gripper shoe 24, and can rotate around this gripper shoe 24.The plane at gripper shoe 24 place is gripper shoe plane.In other embodiments of the present invention, working head can be the saw blade of saw blade, reciprocating saw etc.When working head is saw blade, cutting element can think the cutting part of saw blade, and gripper shoe can think the central support portion of saw blade.When working head is the saw blade of similar reciprocating saw, cutting element can think the cutting edge part of saw blade of reciprocating saw, and gripper shoe can think the support section of the cutting edge of the saw blade of reciprocating saw.
Chain saw 20 also comprises motor 28, and motor 28, for driving working head 22, makes flexible chain 26 rotate around gripper shoe 24.Motor 28 has motor output shaft 30, and this motor output shaft 30 has motor output shaft axis X 1, and this motor output shaft 30 rotates around motor output shaft axis X 1 thus drives flexible chain 26 to make it rotate around gripper shoe 24.Motor 28 is contained in motor shell 32.
With further reference to Fig. 3, chain saw 20 comprises main casing 34, main casing 34 is made up of two and half housings in an embodiment of the invention, the first half housing 34a and the second half housing 34b respectively, the first half housing 34a and the second half housing 34b are removably connected by screw, in other embodiments of the present invention, the first half housing 34a and the second half housing 34b also can be those of ordinary skill in the art other connected mode thinkable, can be such as that monoblock type is arranged, also can by buckle connection etc.Motor shell 32 is dismountable to be connected on the first half housing 34a.In an embodiment of the invention, motor shell is connected by screw on the first half housing 34a.In other embodiments of the present invention, motor shell 34a also can be fixedly connected with the first half housing 34a, and such as motor shell 32 and the first half housing 34a monoblock types are arranged.
Chain saw 20 comprises a case lid 35, and the second half housing 34b are provided with access hole 35a, and the object arranging this access hole 35a facilitates user to change flexible chain 26.Case lid 35 is dismountable to be installed on access hole 35a, and in the present embodiment, case lid 35 is bolted to connection on the second half housing 34b.In other embodiments of the present invention, case lid 35 also can be by those of ordinary skill in the art other connected mode thinkable be connected on the second half housing 34b.When not needing to change flexible chain 26, case lid 35 covers access hole 35a.When flexible chain 26 changed by needs, case lid 35 can be pulled down from the second half housing 34b by instruments such as spanners by user.
Chain saw 20 comprises first handle assembly 36 (with reference to Fig. 1) for supplying operator's holding operation in the course of the work.With reference to Fig. 3, the first half housing 34a comprise the first working head host side 38a, first handle host side 40a and the first connecting portion 42a for being connected the first working head host side 38a and first handle host side 40a.The second half housing 34b comprise the second working head host side 38b, second handle host side 40b and the second connecting portion 42b for being connected the second working head host side 38b and second handle host side 40b.
With reference to Fig. 4 A to Fig. 4 B, the first working head host side 38a and the second working head host side 38b all roughly takes the shape of the letter U.First working head host side 38a has the first U-shaped opening 43a.Second working head host side 38b has the second U-shaped opening 43b.
First working head host side 38a forms the U-shaped guard shield 38 (with reference to Fig. 1) of chain saw together with the second working head host side 38b, and this U-shaped guard shield 38 is for accommodating working head 22.
First working head host side 38a comprises the first upper side wall 44a and the first lower wall 46a, defines the first U-shaped opening 43a between the first upper side wall 44a and the first lower wall 46a.Second working head host side 38b comprises the second upper side wall 44b and the second lower wall 46b.The second U-shaped opening 43b is defined between second upper side wall 44b and the second lower wall 46b.
The first receiving space 48 (with reference to Fig. 1) is formed between first upper side wall 44a and the second upper side wall 44b.The second receiving space 50 (with reference to Fig. 1) is formed between first lower wall 44b and the second lower wall 46b.First receiving space 48 and the second receiving space 50 are for accommodating working head 22.First upper side wall 44a and the second upper side wall 44b is respectively equipped with some openings 52, this some opening 52 the current location that the object person that is handled easily clearly can see working head is set.
First working head host side 38a has the first U-shaped inner side edge 54a, this the first U-shaped inner side edge 54a is located at inner side one circle of the first working head host side 38a, namely this first U-shaped inner side edge 54a is located at the side of the first working head host side 38a near the first U-shaped opening 43a, and first U-shaped jaw 56a is dismountable to be arranged on the first U-shaped inner side edge 54a.The inner side of this first U-shaped jaw 56a is provided with a circle tooth 58a.This first U-shaped jaw 56a is made up of steel.First U-shaped jaw 56a be by rivet interlacement on the first U-shaped inner side edge 54a.
Second working head host side 38b has the second U-shaped inner side edge 54b, this the second U-shaped inner side edge 54b is located at inner side one circle of the second working head host side 38b, namely this second U-shaped inner side edge 54b is located at the side of the second working head host side 38b near the second U-shaped opening 43b, and second U-shaped jaw 56b is dismountable to be arranged on the second U-shaped inner side edge 54b.The inner side of this second U-shaped jaw 56b is provided with a circle tooth 58b.This second U-shaped jaw 56b is made up of steel.Second U-shaped jaw 56b be by rivet interlacement on the second U-shaped inner side edge 54b.
First U-shaped inner side edge 54a forms the U-shaped inner side edge 54 of U-shaped guard shield 38 together with the second U-shaped inner side edge 54b.First U-shaped jaw 56a forms the U-shaped jaw 56 of U-shaped guard shield 38 together with the second U-shaped jaw 56b.The U-shaped jaw 56 of U-shaped guard shield 38 is dismountable to be connected on the U-shaped inner side edge 54 of U-shaped guard shield 38.Above-mentioned U-shaped jaw 56 can as abutment walls, for operationally using against workpiece to be cut.Inner side one circle of U-shaped jaw 56 is provided with tooth 58a, 58b.Arrange tooth 58a, the object of 58b is that this toothed U-shaped jaw 56 can support branch reliably, prevents branch from ejecting when cutting thinner branch.
With reference to Fig. 1 and Fig. 3, motor shell 32 is connected by screw on the first connecting portion 42a of the first half housing 34a.The second handle host side 40b of the first handle host side 40a of the first half housing 34a and the second half housing 34b is all extending longitudinally, and both are connected by screw.The first handle host side 40a of the first half housing 34a forms the handle host side 40 of main casing 34 together with the second handle host side 40b of the second half housing 34b.
Handle host side 40 has handle host cavity 59.This handle host cavity 59 is formed between first handle host side 40a and second handle host side 40b.This handle host cavity 59 is for accommodating first handle assembly 36.Handle host cavity 59 has longitudinal extending axis X2, and first handle assembly 36 is accommodated in handle host cavity 59 and the exercisable axis X 2 that extends longitudinally moves linearly.
With further reference to Fig. 2, first handle assembly 36 comprises guide rod portion 60 and holding part 62, and guide rod portion 60 is slender type bar, and guide rod portion 60 is contained in handle host cavity 59.Holding part 62 is roughly in D shape.D shape holding part 62 while for grip limit 64, this gripping limit linearly shape.The another side of D shape holding part 62 is fillet 66, and this fillet 66 is curved.Holding part 62 is connected with guide rod portion 60 by fillet 66.The inner side gripping limit 64 is provided with gauge tap 68, and gauge tap 68 and motor 28 are electrically connected the startup and stopping that being used for controlling motor 28.Grip the two ends on limit 64 and be provided with safety switch 70, safety switch 70 symmetry be arranged at the two ends gripping limit 64, make with left hand or right-hand operated all more convenient.Fillet 66 is connected with guide rod portion 60.
Guide rod portion 60 is contained in handle host cavity 59, and the exercisable longitudinal extending axis X2 along handle host cavity 59 in this guide rod portion 60 moves linearly.
Bindiny mechanism is provided with between first handle assembly 36 and working head 22, in the present embodiment, bindiny mechanism directly connects first handle assembly 36 and gripper shoe 24, and this bindiny mechanism makes the linear movement of first handle assembly 36 be converted to the pivoting action of gripper shoe 24.In the present embodiment, bindiny mechanism is Planar Linkages 72.
With reference to Fig. 2, Planar Linkages 72 comprises driving link, connecting rod and driven member 82.Connecting rod between driving link and driven member 82, and is connected with driving link and driven member 82 in hinged mode respectively.Connecting rod comprises first connecting rod 76, second connecting rod 78 and third connecting rod 80.Driving link is born by the guide rod portion 60 of first handle assembly 36, and when operator pushes away holding part 62 towards the direction of working head 22, guide rod portion 60 can move linearly along the longitudinal extending axis X2 of handle host cavity 59.Driven member 82 is fixedly connected with gripper shoe 24, first connecting rod 76, second connecting rod 78 and third connecting rod 80 between driving link and driven member 82, namely between the guide rod portion 60 and driven member 82 of first handle assembly 36.One end of first connecting rod 76 is connected in hinged mode with the guide rod portion 60 of first handle assembly 36.The other end of first connecting rod 76 is connected in hinged mode with one end of second connecting rod 78, on the connecting portion 42a of what the other end of second connecting rod 78 can be pivoted relative to each other be connected to the first half housing 34a.One end of third connecting rod 80 is connected in hinged mode with the pars intermedia of second connecting rod 78.The other end of third connecting rod 80 is connected in hinged mode with driven member 82.
With reference to Fig. 5, the V-shaped setting of driven member 82, the V-arrangement 84 of V-arrangement driven member 82 is connected in hinged mode with the other end of third connecting rod 80.Be bolted to connection between the V-arrangement another side 86 of V-arrangement driven member 82 and gripper shoe 24.Bottom the V-arrangement of V-arrangement driven member 82,88 are installed on motor output shaft 30.Because driven member 82 is fixedly connected with gripper shoe 24, when driven member 82 rotates around motor output shaft axis X 1, gripper shoe 24 also turns at gripper shoe plane internal rotation around motor output shaft axis X 1 simultaneously.
With reference to the motion principle figure that Fig. 6 is Planar Linkages, driving link (guide rod portion 60) does rectilinear motion, when driving link (guide rod portion 60) moves to the second place (position representated by dotted line) from primary importance (position representated by solid line), driven member 82 is pivoted to the second place (position representated by dotted line) from primary importance (position representated by solid line), arrow A 1 represents the direction of motion in driving link (guide rod portion 60), and arrow A 2 represents the direction of motion of driven member 82.
Chain saw 20 comprises position-limit mechanism, is used for limiting the rotation of gripper shoe, thus prevents gripper shoe from excessively rotating and destroy U-shaped guard shield.With reference to Fig. 7, the end of motor 28 is provided with motor bracket (not shown), motor bracket is fixedly connected with motor 28, from motor bracket, extend three protruded stigmas 90 along the direction of motor output shaft 30, and these three protruded stigmas 90 are circumferentially arranged at equal intervals.Each protruded stigma 90 is provided with the first accepting hole 92.Along the circumferential direction equally spacedly on the first connecting portion 42a of the first half housing 34a be provided with three kidney slots 94, kidney slot 94 along the circumferential direction extends.Above-mentioned three protruded stigmas 90 are each passed through in above-mentioned three kidney slots 94, and protruded stigma 90 circumferentially can move in kidney slot 94.
Simultaneously with reference to Fig. 5, bottom the V-arrangement of V-arrangement driven member 82,88 is roughly rounded, and bottom this V-arrangement, the middle part place of 88 is provided with installing hole 96, and by this installing hole 96, driven member 82 is sheathed on motor output shaft 30.Along the circumferential direction equally spacedly on 88 bottom this V-arrangement be provided with three the second accepting holes 98, these three the second accepting holes 98 align respectively with the first accepting hole 92 be located on above-mentioned three protruded stigmas 90, thus make bolt can pass the first accepting hole 92 and the second accepting hole 98 simultaneously, so that V-arrangement driven member 82 is fixedly connected with protruded stigma 90, because V-arrangement driven member 82 is fixedly connected with gripper shoe 24, thus gripper shoe 24 is fixedly connected with protruded stigma 90.And V-arrangement driven member 82 is fixedly connected on motor bracket, this connected mode makes the pivoting action of driven member 82 that motor 28 can be driven to rotate together.
One end of each kidney slot 94 is provided with the first stop face 100, and the other end of kidney slot 94 is provided with the second stop face 102, and protruded stigma 90 is exercisable mobile in kidney slot 94, coordinates respectively with the first stop face 100 and the second stop face 102.When protruded stigma 90 coordinates with the first stop face 100, working head 22 is accommodated in the first receiving space 48, gripper shoe 24 rotates the top to U-shaped guard shield 38, and now working head 22 topmost maintains a certain distance with U-shaped guard shield 38, makes working head 22 can not encounter U-shaped guard shield 38 topmost.When protruded stigma 90 coordinates with the second stop face 102, working head 22 is accommodated in the second receiving space 50, gripper shoe 24 rotate to U-shaped guard shield 38 bottom, now working head 22 and U-shaped guard shield 38 maintain a certain distance bottom, make working head 22 can not encounter U-shaped guard shield 38 bottom.
Between the first connecting portion 42a and driven member 82 of the first half housing 34a, be provided with torsion spring 106 (with reference to Fig. 7), one end of torsion spring 106 is fixedly connected with the connecting portion 42a of the first half housing 34a.Driven member 82 is provided with aperture 108 (with reference to Fig. 5), and the other end of torsion spring 106 is contained in this aperture 108, and this connected mode makes torsion spring 106 be fixedly connected on driven member 82.The object arranging torsion spring 106 is no matter when after cutting terminates, and working head 22 all can rebound initial position automatically, and namely working head 22 rebounds in the first receiving space 48, and working head is contained in U-shaped guard shield 38 completely, can ensure the safety operated like this.
Chain saw 20 comprises transmission mechanism 110 (with reference to Fig. 2) between motor 28 and working head 22, and transmission mechanism 110 comprises sprocket wheel 112 and to be located on motor output shaft 30 and can to rotate around motor output shaft axis X 1 with motor output shaft 30.Sprocket wheel 112 engages with flexible chain 26 and flexible chain 26 can be driven to rotate around gripper shoe 24.
During work, be located at the gauge tap 68 on first handle assembly 36 holding part 62 with hand, motor 28 will be opened, thus motor output shaft 30 starts to rotate, sprocket wheel 112 rotates with motor output shaft 30, and sprocket wheel 112 rotarily drives flexible chain 26 and rotates around gripper shoe 24.Simultaneously, operator holds the holding part 62 of first handle assembly 36, direction towards working head 22 promotes first handle assembly 36, guide rod portion 60 can move linearly along the longitudinal extending axis X2 of handle host cavity 59, by the effect of Planar Linkages 72, gripper shoe 24 moves pivotally around motor output shaft axis X 1 in gripper shoe plane, thus starts the work of cutting.Owing to being be fixedly connected with between gripper shoe 24 with motor 28, make the pivotable of gripper shoe 24 that motor 28 can be driven to rotate together.In the present embodiment, by promoting first handle assembly 36 towards working head direction, thus make gripper shoe 24 pivotable realize cutting, it should be noted that, those of ordinary skill in the art also can realize by drawing first handle assembly 36 towards away from working head direction by the position of simple changing the plane multi-bar linkage 72, make gripper shoe 24 pivotable realize cutting.
With reference to Fig. 8 A, Fig. 8 B and Fig. 8 C is the working state schematic representation of chain saw 20, and Fig. 8 A is the schematic diagram of chain saw when being in off working state, and now, working head 22 is contained in the first receiving space 48 of U-shaped guard shield 38 completely.With reference to Fig. 8 B, towards D to promotion first handle assembly 36, working head 22 will along E to pivotable, and start to cut workpiece, exposes gradually in the first receiving space 48.With reference to Fig. 8 C, continue towards A to promotion first handle assembly 36, working head 22 continues along E to pivotable, thus part enter the second receiving space 50, and terminate the cutting to workpiece.
With reference to Fig. 9, chain saw 20 also comprises an extension rod to facilitate the workpiece of cutting higher position, is second handle assembly 116 at this extension rod.Second handle assembly 116 comprises second handle assembly holding part 118 and second handle assembly extension 120.Second handle assembly extension 120 comprises first end 122 and the second end 124, and first end 122 is connected with second handle assembly holding part 118, and the second end 124 is connected with first handle assembly 36.Retaining mechanism 126 is provided with between the second end 124 and first handle assembly 36.Second handle assembly holding part 118 is in D shape.
Second handle assembly holding part 118 while for gripping limit 128, another side is fillet 130, grip the inner side on limit 128 and be provided with gauge tap 132, gauge tap 132 and motor 28 are electrically connected the startup and stopping that being used for controlling motor 28.Grip the two ends on limit 128 and be provided with safety switch 134, safety switch 134 symmetry be arranged at the two ends gripping limit 128, make with left hand or right-hand operated all more convenient.Fillet 130 is connected with second handle assembly extension 120.
Second handle assembly extension 120 is slender type bar extending longitudinally, and this extension 120 can make the form of expansion link.
With reference to Figure 10 and Figure 11, the second end 124 is fixedly connected with first handle assembly 36 is dismountable by retaining mechanism 126.Dismountable being fixedly connected with refers to that the second end 124 and first handle assembly 36 are dismountable connections, and when both connect above, would not have relative motion between the two.Retaining mechanism 126 comprises lock bracket 144.On the side of lock bracket 144 interval be provided with two tight blocks 146 of C clamp, the tight block of each C clamp 146 is separately installed with a tight sheet 148 of C clamp, is connected by bolt and nut between the tight block of C clamp 146 with the tight sheet 148 of C clamp.The tight sheet of C clamp 148 and the corresponding setting of the tight block of C clamp 146, form a holes for clamping 150 between the two, the second end 124 of second handle assembly 116 is contained in this holes for clamping 150.The cross sectional shape of the shape of this holes for clamping 150 and the second end of second handle assembly 116 matches, and the second end of second handle assembly 116 is clamped to wherein.
The holding part of first handle assembly is provided with handle accepting hole 152.This handle accepting hole 152 is limited together with fillet 66 by the gripping limit 64 of first handle assembly 36.The shape of this handle accepting hole 152 is roughly in D shape, and lock bracket 144 is dismountable to be contained in this handle accepting hole 152, and the profile of lock bracket 144 is roughly the same with the shape of handle accepting hole 152.
With reference to Figure 11, the opposite side of lock bracket 144 is provided with the first mating surface 154.The gripping limit 64 of the holding part 62 of first handle assembly 36 and the side of fillet are provided with the second mating surface 156, and lock bracket 144 is accommodated in handle accepting hole 152, and the second mating surface 156 and the first mating surface 154 match and both mating shapes.Like this, when lock bracket 144 is accommodated in described handle accepting hole 152, lock bracket 144 does not have any rotation in handle accepting hole.When lock bracket 144 is accommodated in handle accepting hole 152, the gauge tap 68 be located on first handle assembly 36 support 144 that is locked is pushed down, and is in the state electrically conducted.
With reference to Figure 12, retaining mechanism 126 also comprises two locking knobs 158.The exercisable holding part 62 by first handle assembly 36 of locking knob 158 is clamped between lock bracket 144 and locking knob 158.
The opposite side of the fillet 66 of the holding part 62 of first handle assembly 36 is provided with the 3rd mating surface 159 (with reference to Figure 11).
With reference to Figure 12, locking knob 158 comprises operating portion 160, main part 162 and mating part 164.Operating portion 160 is positioned at the top of locking knob 158, operates for operator's hand.Main part 162 is provided with the 4th mating surface 166.Mating part 164 is the column of threaded structure.Lock bracket 144 is provided with the collecting locking knob 158 of two knob resettlement sections 168 for part.Knob resettlement section 168 comprises the less collecting through hole 170 of diameter and the larger collecting cavity 172 of diameter.The collecting through hole 170 that wherein diameter is less is for accommodating the cylindrical body portion of the threaded structure of locking knob 158.The larger collecting cavity 172 of diameter is for accommodating the main part of locking knob 158.The column of threaded structure comprises a free end, this free end and nut screw connection, and locking knob 158 is installed on lock bracket 144 reliably.Wherein, selectable and the 3rd mating surface 159 of the 4th mating surface 166 coordinates, both mating shapes.
Locking knob 158 is moved between the first position and the second position by rotatable.With reference to Figure 13 A, when locking knob 158 is positioned at primary importance, the first mating surface 154 and the second mating surface 156 coordinate; 3rd mating surface 159 and the 4th mating surface 166 coordinate, and now the holding part 62 of first handle assembly 36 is held between locking knob 158 and lock bracket 144 tightly.
With reference to Figure 13 B, 180 degree of rotational lock knobs 158, now when locking knob 158 is positioned at the second place, the 4th mating surface 166 by rotate away from the 3rd mating surface 159, namely the 4th mating surface 166 is by mismatching with the 3rd mating surface 159 of rotating.Now lock bracket 144 can take off from the handle accepting hole of first handle assembly.
With reference to Figure 14, the first handle host side 40a of the first half housing 34a establishes long and narrow opening 174.The guide rod portion 60 of first handle assembly 36 is provided with a C shape support 176, this C shape support 176 is fixed in guide rod portion 60 by bolt and nut.C shape support 176 stretches out from the long and narrow opening 174 40a of first handle host side.Second end of second handle assembly 116 is supported on C shape support 176.C shape support 176 is aluminum material.
With reference to Fig. 9, first handle assembly 36 and second handle assembly 116 are electrically connected.The holding part 62 of first handle assembly 36 is provided with electric wire, and one end of this electric wire is connected with plug 177a, and the other end and gauge tap 68, the motor 28 etc. of this electric wire electrically conduct.Second end 124 of second handle assembly 116 is provided with electric wire, and one end of this electric wire is provided with socket 177b, and this socket 177b can connect to be electrically connected with above-mentioned plug 177a.Second handle assembly holding part 118 is provided with plug 177c, and this plug 177c is used for being connected with external power source.The other end of electric wire is electrically conducted by wire and the gauge tap be located on second handle assembly holding part 118.
When needing second handle assembly 116 to be installed on first handle assembly 36, C shape support 176 is installed on first handle assembly 36.Once after C shape support 176 is installed, just can lift down, even if when only using first handle assembly 36 and do not need second handle assembly 116, C shape support 176 also can be retained on first handle assembly 36, compares and save trouble after making like this.Lock bracket 144 is connected with locking knob 158, second handle assembly 116 is fixedly connected with lock bracket 144.By the second end 124 of second handle assembly 116 through C shape support 176, the second end 124 of such second handle assembly 116 just can be supported on C shape support 176.Push down safety switch 70 and the gauge tap 68 of first handle assembly 36 with hand simultaneously, by lock bracket 144 through in the handle accepting hole 152 of first handle assembly 36, when lock bracket 144 entering in handle accepting hole 152 slowly, unclamp safety switch 70 and gauge tap 68, rotational lock knob 158,3rd mating surface 159 and the 4th mating surface 166 are coordinated, and now the holding part 62 of first handle assembly 36 is clamped between lock bracket 144 and locking knob 158.Plug 177a on first handle assembly 36 is inserted in the socket 177b on second handle assembly, first handle assembly 36 and second handle assembly 116 are electrically connected.Such second handle assembly 116 is just installed on chain saw 20 reliably.
When needing the branch cutting higher position, can first second handle assembly 116 be installed on chain saw 20 according to the method described above.Then carry out cutting work, during cutting, the plug 177c on second handle assembly holding part 118 is connected on external power source.U-shaped jaw 56 is positioned on the branch that will cut, and prop up branch, now operator one holds second handle assembly holding part 118, control safety switch 134 and gauge tap 132 simultaneously, another holds second handle assembly extension 120, towards towards or direction away from working head 22 promote or draw second handle assembly 116, now gripper shoe 24 will turn, starts to cut branch.
With reference to Figure 15, the pars intermedia of the second handle assembly 116 of chain saw 20 is provided with a sleeve 178, and sleeve 178 is exercisable to be moved along pars intermedia.Chain saw 20 comprises rope 180 further, and one end of rope 180 is connected on main casing 34, and the other end of rope 180 is connected on sleeve 178.Main casing 34 is provided with grab 182, and one end of rope 180 is hung on grab 182.Sleeve 178 is provided with two radial walls 184 extended, a guide groove 186 is defined between these two the radial walls 184 extended, the other end of rope 180 passes from this guide groove, the middle part place of each wall 184 is provided with a pivotable elastic cam folder 188, each elastic cam folder 188 has a cam surface 190, cam surface 190 extends in guide groove 186, and rope 180 is held between two cam surfaces 190, and cam presss from both sides 188 and exercisablely clamped by rope 180 or discharge.
If need the thinner branch cutting higher position, can first second handle assembly 116 be installed on chain saw 20 according to the method described above.Then carry out cutting work, during cutting, the plug 177c be located on second handle assembly holding part 118 is connected on external power source.U-shaped jaw 56 is positioned on the branch that will cut, now operator one holds second handle assembly holding part 118, control safety switch 134 and gauge tap 132 simultaneously, another holds sleeve 178, towards towards or away from working head 22 direction promote or draw second handle assembly 116, now gripper shoe 24 will turn, starts to cut branch.
In other embodiments of the present invention, bindiny mechanism can be pinion and rack (not shown).This pinion and rack generally includes the tooth bar be fixedly connected with first handle assembly 36, and the gear be fixedly connected with gripper shoe 24, by pushing away or drawing first handle assembly 36, can make gear pivotable thus drive gripper shoe 24 to rotate.
In yet another embodiment of the present invention, bindiny mechanism can be pulley mechanism (not shown).Pulley mechanism generally includes pulley and rope, rope is placed on pulley, one end of rope is fixedly connected with first handle assembly 36, the other end of rope is fixedly connected on main casing 34, pulley is fixedly connected with gripper shoe 24 by driven member 82, and during operation, operator is by pushing away or drawing first handle assembly 36, pulley will drive driven member 82 pivotable, thus driven member 82 drives gripper shoe 24 to rotate.
Claims (7)
1. a plant pruning machine, comprising:
Working head, comprises cutting element, and for supporting the gripper shoe of described cutting element;
Motor, has motor output shaft, the described cutting element of the driving for rotating;
Motor shell is for accommodating described motor;
The Handleset of the described working head movement of exercisable control;
It is characterized in that: described plant pruning machine comprises the first half housings and the second half housings, the first half housings comprise the first working head host side, the second half housings comprise the second working head host side, first working head host side and the second working head host side form the U-shaped guard shield for accommodating described cutting element, first working head host side comprises the first upper side wall and the first lower wall, second working head host side comprises the second upper side wall and the second lower wall, the first receiving space of U-shaped guard shield is formed between first upper side wall and the second upper side wall, the second receiving space of U-shaped guard shield is formed between first lower wall and the second lower wall, when plant pruning machine is in off working state, working head is contained in the first receiving space completely, when plant pruning machine is in cut state, working head can partly enter the second receiving space, described U-shaped guard shield has U-shaped inner side edge, described U-shaped inner side edge is provided with U-shaped jaw.
2. plant pruning machine according to claim 1, is characterized in that: the inner side of described U-shaped jaw is provided with tooth.
3. plant pruning machine according to claim 1, is characterized in that: described U-shaped jaw is dismountable to be connected on U-shaped inner side edge.
4. plant pruning machine according to claim 1, is characterized in that: described U-shaped jaw is made up of steel.
5. plant pruning machine according to claim 1, 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.
6. plant pruning machine according to claim 1, it is characterized in that: the first working head host side has the first U-shaped inner side edge, second working head host side has the second U-shaped inner side edge, and described U-shaped jaw comprises the first U-shaped jaw being located at described first U-shaped inner side edge and the second U-shaped jaw being located at described second U-shaped inner side edge.
7. plant pruning machine according to claim 1, is characterized in that: described first upper side wall and the second upper side wall are respectively equipped with opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110366133.7A CN102487739B (en) | 2009-07-17 | 2009-07-17 | Plant trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110366133.7A CN102487739B (en) | 2009-07-17 | 2009-07-17 | Plant trimmer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101616240A Division CN101953275B (en) | 2009-07-17 | 2009-07-17 | Plant trimmer |
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| Publication Number | Publication Date |
|---|---|
| CN102487739A CN102487739A (en) | 2012-06-13 |
| CN102487739B true CN102487739B (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110366133.7A Active CN102487739B (en) | 2009-07-17 | 2009-07-17 | Plant trimmer |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111512818B (en) * | 2020-05-28 | 2022-05-17 | 安徽建筑大学城市建设学院 | Hand-operated pole pruning saw |
| CN115708449A (en) * | 2022-12-05 | 2023-02-24 | 贵州电网有限责任公司 | Join in marriage electronic branches of tall trees saw of net |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2404613A (en) * | 2003-07-14 | 2005-02-09 | David Jarman | A vegetation pruning device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3421999A1 (en) * | 1984-06-14 | 1986-01-09 | Fa. Andreas Stihl, 7050 Waiblingen | REBLAUBSCHNEIDGERAET |
| JPH03285617A (en) * | 1990-04-02 | 1991-12-16 | Takeji Okawa | Pruning hook of tree |
| CN2605728Y (en) * | 2003-03-06 | 2004-03-10 | 王光彬 | Improved structure of tree pruner |
| CN101811312B (en) * | 2009-02-20 | 2011-12-21 | 苏州宝时得电动工具有限公司 | Chain saw |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2404613A (en) * | 2003-07-14 | 2005-02-09 | David Jarman | A vegetation pruning device |
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| CN102487739A (en) | 2012-06-13 |
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