WO2011006446A1 - 植物修剪机 - Google Patents

植物修剪机 Download PDF

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Publication number
WO2011006446A1
WO2011006446A1 PCT/CN2010/075212 CN2010075212W WO2011006446A1 WO 2011006446 A1 WO2011006446 A1 WO 2011006446A1 CN 2010075212 W CN2010075212 W CN 2010075212W WO 2011006446 A1 WO2011006446 A1 WO 2011006446A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle assembly
plant trimmer
trimmer according
locking
handle
Prior art date
Application number
PCT/CN2010/075212
Other languages
English (en)
French (fr)
Inventor
布朗•沃伦
索默•哈利
格哈雷•格雷厄姆
Original Assignee
苏州宝时得电动工具有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Priority to EP10799444.4A priority Critical patent/EP2454934B1/en
Priority to US13/384,553 priority patent/US20120110863A1/en
Publication of WO2011006446A1 publication Critical patent/WO2011006446A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0008—Means for carrying the chain saw, e.g. handles
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/08—Other tools for pruning, branching or delimbing standing trees
    • A01G3/085—Motor-driven saws for pruning or branching
    • A01G3/086—Chain saws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/0083—Attachments for guiding or supporting chain saws during operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/02—Chain saws equipped with guide bar

Definitions

  • the present invention relates to a plant trimmer, and more particularly to a plant trimmer having an extension rod, such as a chain saw having an extension rod.
  • the conventional chain saw includes a work head consisting of a chain and a support plate for supporting the chain.
  • the chain is driven by a motor and rotates around the support plate.
  • the conventional chain saw also includes a main handle located at the rear of the work head. Auxiliary handle between the head and the main handle.
  • the working head of the conventional chain saw is usually driven by the motor so that the chain rotates around the support plate.
  • the support plate is generally stationary.
  • the operator holds the main handle in one hand and the auxiliary handle in the other hand. To ensure a smooth cut, the operator's hand needs to apply a pressure to the cutting direction.
  • this conventional chain saw is relatively easy and less laborious because of the downward gravity of the machine itself. However, if you need to cut from the bottom to the top, or if you need to cut from the side, the operator will feel more laborious.
  • U.S. Published Patent Application No. 2 005 / 0022 38 8 A1 discloses a chain saw comprising a working head consisting of a chain and a support plate for supporting the chain, the chain being driven by a motor and rotating around the support plate.
  • the chain saw also includes a pair of arms that are relatively pivoted about a fixed axis, the working head being mounted to one of the arms and pivotable relative to the other arm about the fixed axis.
  • Each arm is connected to a handle portion for the operator to hold.
  • the relative pivoting of the handle portion by the operator causes the cutting head to move in the cutting direction to allow the cutting operation to proceed smoothly.
  • this structure makes the operation less comfortable in some cases.
  • the conventional chain saw usually includes an extension rod, which is usually detachably fixedly attached to the main handle of the chain saw. In operation, the operator holds the extension rod. , Applying force in the direction of cutting, this operation is often more laborious.
  • U.S. Patent No. 7,1,32,32, B B 2 discloses a chain saw comprising a working head, a main handle and an extension rod.
  • the user attaches the extension rod to the main handle, the extension rod and the main The handles are electrically connected, and the user can operate by simply holding the extension rod, but the chain saw is operating In doing so, it is necessary for the operator to apply a large force in the cutting direction, which makes the operation process more laborious.
  • the technical problem to be solved by the present invention is to provide a plant trimmer which is comfortable to operate.
  • the present invention provides a plant trimmer comprising:
  • a locking mechanism is configured to detachably connect the second handle assembly to the first handle assembly;
  • a connection mechanism is disposed between the first handle assembly and the support plate;
  • the first handle assembly or the second handle assembly is operative to move linearly relative to the main housing in a direction toward or away from the support plate, the coupling mechanism causing linear motion of the first handle assembly or the second handle assembly to translate into a swing of the support plate .
  • the preferred implementation of the invention may also be the following:
  • the plant trimmer of the present invention further includes an abutment wall for abutting the workpiece during operation.
  • the plant trimmer of the present invention further comprises a U-shaped shield.
  • the U-shaped shield of the present invention has a U-shaped inner side edge, and the U-shaped shield further includes a U-shaped jaw that is detachably coupled to the U-shaped inner side.
  • the U-shaped jaw of the present invention is provided with teeth on the inside.
  • the U-shaped jaw of the present invention is made of steel.
  • the first handle assembly of the present invention includes a guide rod portion
  • the main housing has a handle receiving cavity for receiving the guide rod portion
  • the handle receiving chamber has a longitudinal extension axis X 2
  • the guide rod portion is operable The linear movement along the longitudinally extending axis of the handle receiving cavity.
  • the first handle assembly of the present invention includes a grip portion that is D-shaped.
  • the first handle assembly grip portion of the present invention comprises a linearly-shaped gripping edge and an arc-shaped connecting edge, and the first handle assembly gripping portion is connected to the first handle assembly guide rod portion through the connecting edge .
  • the two ends of the gripping edge of the present invention are symmetrically provided with a safety switch.
  • the inner side of the grip side of the present invention is provided with a control switch.
  • the connecting mechanism of the present invention is a planar multi-bar mechanism.
  • the planar multi-rod mechanism of the present invention comprises an active member, a connecting rod and a driven member, the active member being borne by the first handle assembly, the driven member being fixedly connected with the support plate, the connection A rod is located between the active member and the driven member and is coupled to the active member and the driven member in an articulated manner, respectively.
  • the plant trimmer of the present invention comprises a main casing
  • the connecting rod comprises a first link hinged with the active member, a second link hinged with the first link, one end of the second link and the first
  • the connecting rod is hinged, and the other end of the second connecting rod is relatively pivotally connected to the main housing
  • the third connecting rod hinged with the second connecting rod one end of the third connecting rod is hinged with the middle portion of the second connecting rod, The other end of the third connecting rod is hinged to the driven member.
  • the plant trimmer of the present invention comprises a main casing, and a torsion spring is arranged between the main casing and the driven member, one end of the torsion spring is fixedly connected with the main casing, and the other end of the torsion spring is The moving parts are fixedly connected.
  • the plant trimmer of the present invention includes a limiting mechanism for limiting the oscillation of the support plate.
  • the limiting mechanism of the present invention comprises a slot disposed on the main housing and a protruding post fixedly coupled to the support plate, the two ends of the slot being a first stop surface and a second stop surface, respectively, the protruding post It is operable to cooperate with the first stop surface and the second stop surface.
  • the groove of the present invention is a waist groove extending in the circumferential direction.
  • the plant trimmer of the present invention comprises a motor to which a motor bracket is fixedly coupled, the stud extending from the motor bracket and passing through the slot.
  • the waist grooves of the present invention are provided at three equal intervals in the circumferential direction, and the studs are provided at three equal intervals in the circumferential direction, and the three studs respectively pass through the three waist grooves.
  • the second handle assembly of the present invention includes a second handle assembly grip portion and a second handle assembly extension portion, the second handle assembly extension portion includes a first end and a second end, the first end and the first end Two handle assembly grips are coupled, the second end is coupled to the first handle assembly, and the locking mechanism is located between the second end and the first handle assembly.
  • the second handle assembly of the present invention includes a second handle assembly grip and a second handle assembly extension, the second handle assembly grip being D-shaped.
  • the first handle assembly of the present invention comprises a grip portion, and the grip portion is provided with a handle for receiving
  • the locking mechanism includes a locking bracket, and the locking bracket is detachably received in the handle receiving hole.
  • the locking bracket of the present invention is provided with a first mating surface, and a second mating surface is disposed on one side of the grip portion of the first handle assembly, and the first mating surface and the second mating surface are matched. And the shapes of the two match.
  • the locking mechanism of the present invention further includes a locking knob operable to cause the grip of the first handle assembly to be clamped between the locking bracket and the locking knob.
  • the other side of the grip portion of the first handle assembly of the present invention is provided with a third mating surface
  • the locking knob is provided with a fourth mating surface
  • the fourth mating surface is selectable and third. Match the surface to match.
  • the first handle assembly of the present invention comprises a guide rod portion, the guide rod portion is detachably fixedly coupled with a C-shaped bracket, and the main housing is provided with an elongated opening, and the C-shaped bracket is elongated and long Extending in the opening, the C-shaped bracket is movable along the elongated opening, and the second handle assembly includes an extension that is supported on the C-shaped bracket.
  • one of the first handle assembly and the second handle assembly of the present invention is provided with a plug, and the other of the two is provided with a socket, and the first handle assembly and the first through the mating of the plug and the socket The two handle assemblies are electrically connected.
  • the plant trimmer of the present invention further comprises a sleeve slidably mounted on the second handle assembly, the plant trimmer further comprising a rope, one end of the rope being coupled to the main casing, The other end of the rope is attached to the sleeve.
  • the main casing of the present invention is provided with a hook, and one end of the rope is hung on the hook.
  • the sleeve of the present invention is provided with an elastic cam clip for operatively clamping the cord to the towel.
  • the plant trimmer of the present invention further includes an operating assembly having an operating member movably mounted to the second handle assembly and a connecting member removably mated with the main housing.
  • the second handle assembly of the present invention includes a second handle grip and an outer tube that is coupled to the first handle assembly.
  • the connecting element of the present invention comprises an inner tube connected to the outer tube, the first end of the inner tube extends inside the outer tube, and the second end of the inner tube extends outside the outer tube and the main shell Body mating.
  • the operating element of the present invention comprises a sleeve mounted to the outer tube and fixedly mated with the inner tube,
  • the outer tube wall is provided with an axially extending opening, and the sleeve slides axially relative to the outer tube along the opening.
  • the main casing of the present invention is provided with an opening
  • the second end of the inner tube is provided with a connecting member
  • the connecting member has a stepped fitting portion, and the engaging portion is selectively engaged with the opening to lock.
  • the first handle assembly of the present invention includes a grip portion, and the locking mechanism includes a receiving cavity, and the grip portion is selectively locked in the receiving cavity.
  • the locking mechanism of the present invention comprises a pivotally connected base and a cover, and a locking member for selectively locking the base and the cover, the locking member comprising a locking member disposed on the cover a button, a locking post for fixing the locking button, and a latching member for fixing the locking post, the base is provided with an opening, and the engaging member is selectively engageable with the opening.
  • the base of the present invention is provided with a through hole, and the second end of the outer tube is fixedly fitted into the through hole.
  • FIG. 1 is a perspective view of a chain saw disclosed in the present invention.
  • FIG. 2 is a schematic view showing the internal structure of the chain saw disclosed in FIG. 1.
  • Figure 3 is an exploded view of the main housing of the chain saw disclosed in Figure 1.
  • FIG. 4 is a perspective view of the first half of the chain saw of FIG.
  • Figure 5 is a perspective view of the second half of the chain saw of Figure 3.
  • Figure 6 is a perspective view of the follower of the chain saw disclosed in Figure 1.
  • Fig. 7 is a schematic view showing the movement of the connecting mechanism of the chain saw disclosed in Fig. 1.
  • Figure 8 is a perspective view of the limit mechanism of the chain saw disclosed in Figure 1.
  • Figure 9 is a state diagram of the chain saw disclosed in Figure 1 when it is not in operation.
  • Figure 10 is a state diagram of the chain saw disclosed in Figure 9 during operation.
  • Figure 1 1 is a state diagram of the chain saw disclosed in Figure 1 at the end of the work.
  • Figure 1 2 is a perspective view of the chain saw disclosed in Figure 1 with the second handle assembly.
  • Figure 13 is a partial enlarged view of the locking mechanism of the chain saw disclosed in Figure 12.
  • Figure 14 is a partial exploded view of the locking mechanism of the chain saw disclosed in Figure 12 not mounted to the first handle assembly.
  • Figure 15 is a partial exploded view of the locking mechanism of the chain saw disclosed in Figure 12.
  • Figure 16 is a schematic view of the chain saw disclosed in Figure 12 when the locking knob is in the first position.
  • Figure 17 is a schematic view of the chain saw disclosed in Figure 12 when the locking knob is in the second position.
  • Figure 18 is a perspective view of the C-shaped bracket of the chain saw disclosed in Figure 12.
  • Figure 19 is a partial perspective view of the chain saw with the cord disclosed in Figure 12.
  • Figure 20 is a front elevational view of another second handle assembly.
  • Figure 21 is a cross-sectional view showing the top view of Figure 20 .
  • Figure 22 is an exploded view of the second handle assembly of Figure 20.
  • Figure 23 is a perspective view showing the locking mechanism of the chain saw disclosed in Figure 20 in an open state.
  • Figure 24 is a perspective view of another chain saw disclosed in the present invention.
  • Figure 25 is a partially enlarged schematic view showing the I mark in the chain saw disclosed in Figure 24.
  • Figure 26 is a perspective view of the chain saw of Figure 24 with another second handle assembly.
  • the plant trimmer is a chain saw 20
  • the chain saw 20 includes a work head 22 for machining a workpiece
  • the work head 11 includes a support plate 24 And a cutting element mounted on the support plate 24.
  • the cutting element is a flexible chain 26 that is mounted to the periphery of the support plate 24 and is rotatable about the support plate 24.
  • the plane in which the support plate 24 is located is the plane of the support plate.
  • the working head may be a saw blade of a circular saw blade, a reciprocating saw or the like.
  • the cutting element can be considered as the cutting portion of the circular saw blade, and the support plate can be regarded as the central supporting portion of the circular saw blade.
  • the cutting element can be considered as the cutting edge portion of the saw blade of the reciprocating saw, and the support plate can be considered as the supporting portion of the cutting edge of the saw blade of the reciprocating saw.
  • the chain saw 20 also includes a motor 28 for driving the working head 22 such that the flexible chain 26 rotates about the support plate 24.
  • the motor 28 has a motor output shaft 30 having a motor output shaft axis XI that rotates about a motor output shaft axis XI to drive the flexible chain 26 to rotate about the support plate 24.
  • the motor 28 is housed in the motor housing 32.
  • the chain saw 20 includes a main housing 34.
  • the main housing 34 is comprised of two half-shells, a first half-shell 34a and a second half-shell 34b, respectively.
  • the first housing half 34a and the second housing half 34b are detachably connected by screws.
  • the first housing half 34a and the second housing half 34b may also be used by those skilled in the art.
  • Other connection methods that can be conceived, for example, may be an integral arrangement, or may be connected by a snap or the like.
  • the motor housing 32 is detachably coupled to the first partial housing 34a. In one embodiment of the invention, the motor housing is coupled to the first partial housing 34a by screws.
  • the motor housing 34a may also be fixedly coupled to the first partial housing 34a, for example, the motor housing 32 is integrally formed with the first partial housing 34a.
  • the chain saw 20 includes a housing cover 35, and the second housing half 34b is provided with an access hole 35a for facilitating replacement of the flexible chain 26.
  • the case cover 35 is detachably attached to the access hole 35a.
  • the case cover 35 is fixedly coupled to the second half case 34b by bolts.
  • the housing cover 35 may also be coupled to the second partial housing 34b by other means of attachment as would occur to those of ordinary skill in the art.
  • the housing cover 35 covers the access hole 35a.
  • the user can remove the housing cover 35 from the second partial housing 34b by a tool such as a wrench.
  • the chain saw 20 includes a first handle assembly 36 (see Figure 1) for the operator to hold the operation during operation.
  • the first half housing 34a includes a first head receiving end 38a, a first handle receiving end 40a, and a first connecting portion 42a for connecting the first working head receiving end 38a and the first handle receiving end 40a.
  • the second housing half 34b includes a second head receiving end 38b, a second handle receiving end 40b, and a second connecting portion 42b for connecting the second working head receiving end 38b and the second handle receiving end 40b.
  • the first head receiving end 38a and the second head receiving end 38b are both substantially U-shaped.
  • the first head receiving end 38a has a first U-shaped opening 43a.
  • the second head receiving end 38b has a second U-shaped opening 43b.
  • the first head receiving end 38a and the second head receiving end 38b together form a U-shaped shield 38 (refer to Fig. 1) for accommodating the working head 11.
  • the first working head receiving end 38a includes a first upper side wall 44a and a first lower side wall 46a, and a first U-shaped opening 43a is defined between the first upper side wall 44a and the first lower side wall 46a.
  • the second head receiving end 38b includes a second upper side wall 44b and a second lower side wall 46b.
  • a second U-shaped opening 43b is defined between the second upper side wall 44b and the second lower side wall 46b.
  • a first receiving space 48 is formed between the first upper side wall 44a and the second upper side wall 44b (refer to Fig. 1).
  • a second accommodating space 50 is formed between the first lower side wall 44b and the second lower side wall 46b (refer to Fig. 1).
  • the first receiving space 48 and the second receiving space 50 are for housing the work head 11.
  • the first upper side wall 44a and the second upper side wall 44b are respectively provided with a plurality of openings 52 for the purpose of facilitating the operator to clearly see the current position of the working head.
  • the first working head receiving end 38a has a first U-shaped inner side 54a.
  • the first U-shaped inner side 54a is disposed on the inner side of the first working head receiving end 38a, that is, the first U-shaped inner side 54a.
  • a first U-shaped jaw 56a is detachably disposed on the first U-shaped inner side 54a on the side of the first working head receiving end 38a adjacent to the first U-shaped opening 43a.
  • a tooth 58a is provided on the inner side of the first U-shaped jaw 56a.
  • the first U-shaped jaw 56a is made of steel.
  • the first U-shaped jaw 56a is connected by rivets Connected to the first U-shaped inner side 54a.
  • the second working head receiving end 38b has a second U-shaped inner side 54b, and the second U-shaped inner side 54b is disposed on the inner side of the second working head receiving end 38b, that is, the second U-shaped inner side 54b
  • a second U-shaped jaw 56b is detachably disposed on the second U-shaped inner side 54b on the side of the second working head receiving end 38b adjacent to the second U-shaped opening 43b.
  • a tooth 58b is provided on the inner side of the second U-shaped jaw 56b.
  • the second U-shaped jaw 56b is made of steel.
  • the second U-shaped jaw 56b is rivetly coupled to the second U-shaped inner side 54b.
  • the first U-shaped inner side 54a and the second U-shaped inner side 54b together form a U-shaped inner side 54 of the U-shaped shroud 38.
  • the first U-shaped jaw 56a and the second U-shaped jaw 56b together form a U-shaped jaw 56 of the U-shaped shield 38.
  • the U-shaped jaw 56 of the U-shaped shield 38 is detachably coupled to the U-shaped inner side 54 of the U-shaped shield 38.
  • the U-shaped jaw 56 can be used as an abutment wall for abutting against the workpiece to be cut during operation.
  • the inner side of the U-shaped jaw 56 is provided with teeth 58a, 58b.
  • the purpose of providing the teeth 58a, 58b is that the toothed U-shaped jaws 56 can reliably support the branches when the thin branches are cut, preventing the branches from being ejected.
  • the motor housing 32 is coupled to the first connecting portion 42a of the first partial housing 34a by screws.
  • the first handle receiving end 40a of the first half case 34a and the second handle receiving end 40b of the second half case 34b both extend longitudinally, and the two are connected by screws.
  • the first handle receiving end 40a of the first half casing 34a and the second handle receiving end 40b of the second half casing 34b together form the handle receiving end 40 of the main casing 34.
  • the handle receiving end 40 has a handle receiving cavity 59.
  • the handle receiving cavity 59 is formed between the first handle receiving end 40a and the second handle receiving end 40b.
  • the handle receiving cavity 59 is for receiving the first handle assembly 36.
  • the handle receiving cavity 59 has a longitudinally extending axis X2, and the first handle assembly 36 is received in the handle receiving cavity 59 and is operable to linearly move along the longitudinally extending axis X2.
  • the first handle assembly 36 includes a guide portion 60 and a grip portion 62.
  • the guide portion 60 is an elongated rod, and the guide portion 60 is received in the handle receiving cavity 59.
  • the grip portion 62 is substantially D-shaped. One side of the D-shaped grip portion 62 is a gripping edge 64 which is linear. The other side of the D-shaped grip 62 is a connecting edge 66 that is curved.
  • the grip portion 62 is coupled to the guide rod portion 60 by a connecting edge 66.
  • a control switch 68 is provided on the inner side of the gripping edge 64.
  • the control switch 68 is electrically coupled to the motor 28 for controlling the starting and stopping of the motor 28.
  • a safety switch 70 is disposed at both ends of the gripping edge 64.
  • the safety switch 70 is symmetrically disposed at both ends of the gripping edge 64, so that it is convenient to operate with either the left hand or the right hand.
  • the connecting edge 66 is connected to the guide portion 60.
  • the guide rod portion 60 is received in the handle receiving cavity 59, and the guide rod portion 60 is operatively linearly moved along the longitudinal extension axis X2 of the handle receiving cavity 59.
  • connection mechanism is provided between the first handle assembly 36 and the work head 22.
  • the connection mechanism directly connects the first handle assembly 36 and the support plate 24, and the connection mechanism causes linear movement of the first handle assembly 36. It is converted into a pivotal movement of the support plate 24.
  • the connecting mechanism is a planar multi-bar mechanism 72.
  • the planar multi-bar mechanism 72 includes an active member, a connecting rod and a follower member 82.
  • the connecting rod is located between the active member and the driven member 82 and is coupled to the active member and the driven member 82 in an articulated manner, respectively.
  • the connecting rod includes a first link 76, a second link 78, and a third link 80.
  • the active member is carried by the guide portion 60 of the first handle assembly 36. When the operator pushes the grip portion 62 toward the working head 22, the guide portion 60 is linearly movable along the longitudinal extension axis X2 of the handle receiving chamber 59.
  • the follower 82 is fixedly coupled to the support plate 24, and the first link 76, the second link 78, and the third link 80 are located between the active member and the follower member 82, that is, at the guide portion of the first handle assembly 36. Between 60 and the follower 82. One end of the first link 76 is hingedly coupled to the guide portion 60 of the first handle assembly 36. The other end of the first link 76 is hingedly coupled to one end of the second link 78, and the other end of the second link 78 is pivotally coupled to the connecting portion 42a of the first partial housing 34a. One end of the third link 80 is connected to the intermediate portion of the second link 78 in an articulated manner. The other end of the third link 80 is hingedly coupled to the follower 82.
  • the follower member 82 is V-shaped, and the V-shaped side 84 of the V-shaped follower member 82 is hingedly coupled to the other end of the third link member 80.
  • the other side 86 of the V-shaped follower 82 is fixedly connected to the support plate 24 by bolts.
  • the V-shaped bottom 88 of the V-shaped follower 82 is mounted to the motor output shaft 30. Since the follower 82 is fixedly coupled to the support plate 24, when the follower member 82 is rotated about the motor output shaft axis XI, the support plate 24 also rotates about the motor output shaft axis XI in the plane of the support plate.
  • FIG. 7 is a motion schematic diagram of a planar multi-bar mechanism, the active member (the guide portion 60) is linearly moved, and the active member (the guide portion 60) is moved from the first position (the position represented by the solid line) to the second When the position (the position represented by the broken line), the follower 82 pivots from the first position (the position represented by the solid line) to the second position (the position represented by the broken line), and the arrow A1 represents the active member (the guide portion 60) The direction of motion, arrow A2 represents the direction of motion of the follower 82.
  • the chain saw 20 includes a stop mechanism for limiting the rotation of the support plate to prevent the support plate from excessively rotating to break the U-shaped shield.
  • a motor bracket (not shown) is attached to the end of the motor 28, and the motor bracket is fixedly coupled to the motor 28, extending from the motor bracket in the direction of the motor output shaft 30.
  • Three studs 90 are provided, which are arranged at equal intervals in the circumferential direction. Each of the studs 90 is provided with a first receiving hole 92.
  • the first connecting portion 42a of the first half case 34a is provided with three waist grooves 94 equally spaced in the circumferential direction, and the waist grooves 94 extend in the circumferential direction.
  • the three studs 90 are respectively passed through the three waist grooves 94, and the studs 90 are movable in the circumferential direction in the waist grooves 94.
  • the V-shaped bottom portion 88 of the V-shaped follower member 82 is substantially circular, and a central portion of the V-shaped bottom portion 88 is provided with a mounting hole 96 through which the follower member 82 is sleeved on the motor. Output on the shaft 30.
  • the V-shaped bottom portion 88 is provided with three second receiving holes 98 at equal intervals in the circumferential direction, and the three second receiving holes 98 are respectively aligned with the first receiving holes 92 provided on the three studs 90, thereby
  • the bolt can pass through the first receiving hole 92 and the second receiving hole 98 at the same time to fix the V-shaped follower 82 and the stud 90, and the V-shaped follower 82 is fixedly connected with the supporting plate 24, thereby making the supporting plate 24 is fixedly connected to the stud 90.
  • the V-shaped follower 82 is fixedly coupled to the motor bracket. This connection means that the pivoting movement of the follower member 82 causes the motor 28 to rotate.
  • each of the waist grooves 94 is provided with a first stop surface 100, and the other end of the waist groove 94 is provided with a second stop surface 102, and the stud 90 is operatively movable in the waist groove 94, respectively A stop face 100 and a second stop face 102 cooperate.
  • the working head 22 When the stud 90 is engaged with the second stop surface 102, the working head 22 is received in the second receiving space 50, and the support plate 24 is rotated to the lowermost end of the U-shaped cover 38. At this time, the working head 22 and the U-shaped guard The lowermost end of the cover 38 is held at a distance such that the working head 22 does not hit the lowermost end of the U-shaped shield 38.
  • a torsion spring 106 (refer to Fig. 8) is provided between the first connecting portion 42a of the first partial housing 34a and the follower 82, and one end of the torsion spring 106 is fixedly coupled to the connecting portion 42a of the first partial housing 34a.
  • the follower member 82 is provided with a small hole 108 (refer to Fig. 6). The other end of the torsion spring 106 is received in the small hole 108. This connection means that the torsion spring 106 is fixedly coupled to the follower member 82.
  • the purpose of the torsion spring 106 is that when the cutting is completed, the working head 22 automatically rebounds to the initial position, that is, the working head 22 springs back into the first receiving space 48, and the working head is completely housed in the U-shaped shield 38. This will ensure the safety of the operation.
  • the chain saw 20 includes a transmission mechanism 110 (refer to FIG. 2) between the motor 28 and the working head 22.
  • the transmission mechanism 110 includes a sprocket 112 disposed on the motor output shaft 30 and is rotatable about the motor output shaft axis with the motor output shaft 30. XI rotation.
  • the sprocket 2 meshes with the flexible chain 26 to drive the flexible chain 26 Rotate around the support plate 24.
  • pressing the control switch 68 provided on the grip portion 62 of the first handle assembly 36 by hand will open the motor 28, so that the motor output shaft 30 starts to rotate, and the sprocket 112 rotates with the motor output shaft 30, the chain
  • the rotation of the wheel 112 causes the flexible chain 26 to rotate about the support plate 24.
  • the operator holds the grip portion 62 of the first handle assembly 36, pushing the first handle assembly 36 in the direction of the working head 22, and the guide rod portion 60 linearly moves along the longitudinal extension axis X2 of the handle receiving cavity 59.
  • the support plate 24 pivots about the motor output shaft axis XI in the plane of the support plate to initiate the cutting operation.
  • FIG. 9 is a schematic view showing the working state of the chain saw 20, and FIG. 9 is a schematic view showing the chain saw in a non-operating state.
  • the working head 22 is completely accommodated in the first receiving of the U-shaped shield 38.
  • the first handle assembly 36 is pushed toward the D direction, and the working head 11 is pivoted along the E direction, and the workpiece is cut and gradually exposed from the first receiving space 48.
  • the first handle assembly 36 is continued to be pushed toward the A direction, and the working head 22 continues to pivot in the E direction, thereby partially entering the second receiving space 50, and the cutting of the workpiece is ended.
  • the chainsaw 20 further includes an extension rod to facilitate cutting the workpiece at a higher position, where the extension rod is the second handle assembly 116.
  • the second handle assembly 116 includes a second handle assembly grip 118 and a second handle assembly extension 120.
  • the second handle assembly extension 120 includes a first end 122 and a second end 124, the first end 122 being coupled to the second handle assembly grip 118 and the second end 124 coupled to the first handle assembly 36.
  • a locking mechanism 126 is provided between the second end 124 and the first handle assembly 36.
  • the second handle assembly grip portion 118 has a D shape.
  • the second handle assembly grip portion 118 has a gripping edge 128 on one side and a connecting edge 130 on the other side.
  • a control switch 132 is disposed on the inner side of the gripping edge 128.
  • the control switch 132 is electrically connected to the motor 28 for controlling the motor 28 .
  • a safety switch 134 is disposed at both ends of the gripping edge 128, and the safety switch 134 is symmetrically disposed at both ends of the gripping edge 128, so that it is convenient to operate with either the left hand or the right hand.
  • the attachment edge 130 is coupled to the second handle assembly extension 120.
  • the second handle assembly extension 120 is a longitudinally extending elongate shaft that may be in the form of a telescoping rod.
  • the second end 124 is detachably and detachably coupled to the first handle assembly 36 by a locking mechanism 126.
  • the detachable fixed connection means that the second end 124 is detachably connected to the first handle assembly 36, and when the two are connected, there is no relative movement between the two.
  • the locking mechanism 126 includes a locking bracket 144.
  • Two C-shaped clamping blocks 146 are disposed on one side of the locking bracket 144, and each C-shaped clamping block 146 is respectively mounted with a C-shaped clamping piece 148, a C-shaped clamping block 146 and a C-shaped shape.
  • the clamping pieces 148 are connected by bolts and nuts.
  • the C-shaped clamping piece 148 is disposed corresponding to the C-shaped clamping block 146, and a clamping hole 150 is formed therebetween.
  • the second end 124 of the second handle assembly 116 is received in the clamping hole 150.
  • the shape of the clamping aperture 150 matches the cross-sectional shape of the second end of the second handle assembly 116 such that the second end of the second handle assembly 116 is clamped therein.
  • a handle receiving hole 152 is defined in the grip portion 62 of the first handle assembly 36.
  • the handle receiving aperture 152 is defined by the gripping edge 64 of the first handle assembly 36 and the connecting edge 66.
  • the handle receiving hole 152 has a substantially D shape, and the locking bracket 144 is detachably received in the handle receiving hole 152.
  • the shape of the locking bracket 144 is substantially the same as the shape of the handle receiving hole 152.
  • a first mating face 154 is provided on the other side of the locking bracket 144.
  • a second mating surface 156 is disposed on a side of the gripping portion 64 and the connecting side of the grip portion 62 of the first handle assembly 36.
  • the locking bracket 144 is received in the handle receiving hole 152, the second mating surface 156 and the A mating face 154 mates and the shapes of the two match.
  • the locking bracket 144 does not have any rotation in the handle receiving hole.
  • the control switch 68 provided on the first handle assembly 36 is pressed by the locking bracket 144 to be electrically connected.
  • the locking mechanism 126 also includes two locking knobs 158.
  • the locking knob 158 operatively clamps the grip 62 of the first handle assembly 36 between the locking bracket 144 and the locking knob 158.
  • a third mating surface 159 (see Fig. 14) is provided on the other side of the connecting side 66 of the grip portion 62 of the first handle assembly 36.
  • the locking knob 158 includes an operating portion 160, a main body portion 162, and a mating portion 164.
  • the operating portion 160 is located at the uppermost end of the locking knob 158 for the operator to operate.
  • a fourth mating surface 166 is disposed on the main body portion 162.
  • the mating portion 164 is a columnar body having a threaded structure.
  • the locking bracket 144 is provided with two knob receiving portions 168 for partially receiving the locking knob 158.
  • the knob housing portion 168 includes a receiving through hole 170 having a smaller diameter and a receiving cavity 172 having a larger diameter.
  • the receiving through hole 170 having a smaller diameter is for receiving the cylindrical portion of the threaded structure of the locking knob 158.
  • the receiving cavity 172 is for receiving the main body portion of the locking knob 158.
  • the cylindrical body of the threaded structure includes a free end that mates with the nut such that the locking knob 158 is securely mounted to the locking bracket 144.
  • the fourth mating surface 166 is selectively engageable with the third mating surface 159, and the shapes of the two are matched.
  • the locking knob 158 is rotatably moved between a first position and a second position. Referring to Figure 16, when the locking knob 158 is in the first position, the first mating surface 154 and the second mating surface 156 are mated; the third mating surface 159 and the fourth mating surface 166 are mated, at this time the grip of the first handle assembly 36 The holding portion 62 is tightly clamped between the locking knob 158 and the locking bracket 144.
  • the 180 degree rotation locking knob 158 when the locking knob 158 is in the second position, the fourth mating surface 166 is rotated away from the third mating surface 159, that is, the fourth mating surface 166 is rotated The three mating surfaces 159 do not match. At this time, the locking bracket 144 can be removed from the handle receiving hole of the first handle assembly.
  • the first handle receiving end 40a of the first partial housing 34a is provided with an elongated opening 174.
  • a C-shaped bracket 176 is mounted on the guide portion 60 of the first handle assembly 36, and the C-shaped bracket 176 is fixed to the guide portion 60 by bolts and nuts.
  • the C-shaped bracket 176 extends from the elongated opening 174 in the first handle receiving end 40a.
  • the second end of the second handle assembly 116 is supported on the C-bracket 176.
  • the C-shaped bracket 176 is made of aluminum.
  • the grip portion 62 of the first handle assembly 36 is provided with an electric wire, and one end of the electric wire is connected with a plug 177a, and the other end of the electric wire is electrically connected to the control switch 68, the motor 28, and the like.
  • the second end 124 of the second handle assembly 116 is provided with a wire, and one end of the wire is provided with a socket 177b, and the socket 177b is mateable with the plug 177a for electrical connection.
  • the second handle assembly grip portion 118 is provided with a plug 177c for connection to an external power source. The other end of the electric wire is electrically connected to the control switch provided on the second handle assembly holding portion 118 by a wire.
  • the C-bracket 176 is mounted to the first handle assembly 36. Once the C-bracket 176 is installed, it can be removed, even if only the first handle assembly 36 is used and the second handle assembly 116 is not required, the C-bracket 176 can remain on the first handle assembly 36. Will make it easier to save in the future.
  • the locking bracket 144 is coupled to the locking knob 158 to securely connect the second handle assembly 116 with the locking bracket 144.
  • the second end 124 of the second handle assembly 116 is passed through the C-bracket 176 such that the second end 124 of the second handle assembly 116 can be supported on the C-bracket 176.
  • the safety switch 70 and the control switch 68 of the 36 pass the locking bracket 144 through the handle receiving hole 152 of the first handle assembly 36.
  • the safety switch 70 is released.
  • the control switch 68 rotates the locking knob 158 such that the third mating surface 159 and the fourth mating surface 166 are engaged, at which time the grip portion 62 of the first handle assembly 36 is clamped to the locking bracket 144 and the locking knob 158. between.
  • the plug 177a on the first handle assembly 36 is inserted into the socket 177b on the second handle assembly such that the first handle assembly 36 and the second handle assembly 116 are electrically connected.
  • the second handle assembly 116 is securely mounted to the chain saw 20.
  • the second handle assembly 116 can be first mounted to the chain saw 20 as described above. Then, the cutting work is performed, and when cutting, the plug 177c on the second handle assembly holding portion 118 is connected to the external power source.
  • the U-shaped jaw 56 is placed on the branch to be cut and against the branch, at which time the operator holds the second handle assembly grip 118 in one hand while controlling the safety switch 134 and the control switch 132, the other hand holding the first
  • the two handle assembly extensions 120 push or pull the second handle assembly 116 toward or away from the working head 11, at which point the support plate 24 will be rotated to begin cutting the branches.
  • a sleeve 178 is provided on the intermediate portion of the second handle assembly 116 of the chainsaw 20, and the sleeve 178 is operatively movable along the intermediate portion.
  • the chain saw 20 further includes a cord 180 having one end coupled to the main housing 34 and the other end of the cord 180 coupled to the sleeve 178.
  • the main casing 34 is provided with a hook 182, and one end of the rope 180 is hung on the hook 182.
  • the sleeve 178 is provided with two radially extending walls 184 defining a channel 186 between the two radially extending walls 184 through which the other end of the cord 180 passes, each wall 184
  • a pivotable resilient cam clip 188 is mounted at the intermediate portion, each resilient cam clip 188 having a cam surface 190 that extends into the guide slot 186 and the cord 180 is clamped to the two cam faces 190
  • the cam clip 188 is operable to clamp or release the cord 180.
  • the second handle assembly 116 can be first mounted on the chain saw 20 and the plug 177c provided on the second handle assembly holding portion 118 can be connected to the external power source. .
  • the U-shaped jaw 56 is placed on the branch to be cut, at which time the operator holds the second handle assembly grip 118 in one hand while controlling the safety switch 134 and the control switch 132, and the other hand holds the sleeve 178 toward the orientation
  • the second handle assembly 116 can be pushed or pulled away from the working head 11 and the support plate 24 will be rotated to begin cutting the branches.
  • a second handle assembly 200 of another embodiment of the present invention includes a second handle assembly grip 210 and a second handle assembly extension 220.
  • the second handle assembly extension 220 includes an outer tube 201, wherein the handle assembly grip 210 is coupled to the first end 211 of the outer tube 201, and the second end 212 of the outer tube 201 is coupled to the locking mechanism 240.
  • the connecting member for connecting the second handle assembly 200 to the main housing includes an inner tube 202 that is slidably disposed relative to the outer tube 201.
  • the operating element fixedly disposed with respect to the inner tube 202 is disposed on the outer tube 201.
  • the operating element in the embodiment is a sleeve 203 sleeved on the outer tube 201.
  • the sleeve 203 is about half a meter away from the grip portion 210 on the outer tube 201.
  • the sleeve in this embodiment can be replaced with other operating elements, such as a control handle that is fixedly coupled to the inner tube 202 and protrudes from the outer tube 201.
  • the first end 221 of the inner tube 202 extends inside the outer tube 201, and the second end 111 extends outside the outer tube 201 and is provided with a connecting member 223 fixedly connected to the main housing of the chain saw.
  • the connecting member 223 is made of a steel material.
  • the outer wall of the inner tube 202 is provided with a longitudinally extending groove 217 which serves as a guide for the inner tube 202 to slide relative to the outer tube 201.
  • the outer tube 201 and the inner tube 202 in the present embodiment are made of lightweight aluminum material, and are light in weight and strong in strength; those skilled in the art can replace them with other materials.
  • the rigid material made of the inner tube 202 and the cord made of a flexible material are two different structures.
  • the second handle assembly grip portion 210 has a D shape, one side is a grip side 228, and the other side is a connecting side 230.
  • the inner side of the grip side 228 is provided with a control switch 232, and the two sides of the grip side 228 are provided with a safety switch.
  • a wire is disposed on an outer side of the connecting edge 230, and a plug 233 is connected to an end of the wire.
  • a connecting wire 214 electrically connected to the plug 233 is disposed in the cavity of the inner tube 202 and the outer tube 201.
  • the connecting wire 214 passes through the cavity of the second end 111 of the inner tube 202 and is connected with the socket 215.
  • the locking mechanism 240 includes a base 241 and a cover 242.
  • the base 241 is provided with a rotating shaft 245.
  • the cover 242 rotates relative to the base 241 with the rotating shaft 245 as a pivoting center.
  • the base 241 is provided with a receiving cavity 243 for receiving the outer tube 201.
  • the base 241 and the outer tube 201 are fixedly connected to each other.
  • the opposite inner sides of the base 241 and the cover 242 are respectively provided with a semicircular cavity, and a locking member 246 is disposed between the base 241 and the cover 242.
  • a receiving cavity 244 is formed between the base 241 and the cover 242.
  • the second handle assembly grip 210 is connected to the first end 211 of the outer tube 201 by screws 216 or other means, and the portion of the outer tube 201 corresponding to the sleeve 203 is provided with an opening extending in the longitudinal direction.
  • the sleeve 203 is formed by two sleeve half-shells 203a, 203b connected by screws 216 or other means.
  • a longitudinally extending pin 207 is disposed in the inner cavity of the outer tube 201, and a pin head 207a having a diameter larger than the pin 207 is disposed at the end of the pin 207, and the pin head 207a abuts against the first end 211 of the outer tube 201.
  • the pin 207 is sleeved with a spring 208, away from The pin 207 of the pin head 207a is partially received in the sleeve 209 such that one end of the spring 208 abuts against the pin head 207a and the other end abuts against the sleeve 209, and the sleeve 209 is opposite to the spring 209.
  • a connector 213 is provided on the side.
  • the connecting member 213 is disposed as a hollow cylinder.
  • the outer diameter of the sleeve 209 is matched with the inner diameter of the connecting member 213 and sleeved together.
  • a through hole 213a is disposed in the middle portion of the outer wall in the height direction of the connecting member 213, and the inner tube 202 is provided.
  • a circular hole 221a is defined in the wall of the first end 221, and a recessed hole (not shown) is disposed at a corresponding position inside the sleeve half-shell 203a.
  • the cylindrical pin 206 penetrates through the through hole 213a of the connecting member 213.
  • the cylindrical pin 206 protrudes from the through hole 213a and passes through the inner tube circular hole 221a, and is fixed in the concave hole of the sleeve half case 203b through the outer tube opening 205.
  • the sleeve 203 is fixedly coupled to the inner tube 202, i.e., the relative position of the sleeve 203 to the inner tube 202 is fixed by the pin 207 and the connector 213.
  • the opening 205 provided on the outer tube 201 defines the sliding stroke of the sleeve 203.
  • the base 241 of the locking mechanism 240 includes a base body 241a and a base body 241b, and the inner side surfaces of the base body 241a and the base body 24b are respectively provided with semicircular cavities 243a ( Only one of the base body 241a and the base body 241b are integrally connected by screws or other means, and the two semicircular cavities 243a are butted to form a receiving cavity 243 for accommodating the outer tube 201, and the outer tube 201
  • the base 241 is fixedly connected.
  • the locking member 246 includes an opening 251 disposed in the base body 241b.
  • the opening 251 is a shaped hole.
  • the inner wall of the shaped hole extends a downward slope surface 251a, and a lock rotatably disposed on the cover 242.
  • the locking button 252 is fixedly connected to the locking button 252.
  • the end of the locking post 253 away from the locking button 252 is fixedly connected with a circular engaging member 255.
  • the engaging member 255 is provided with a flange 255 a.
  • a spring 254 is disposed between the tightening button 252 and the lock cylinder 253.
  • the spring 254 of this embodiment is a torsion spring, one end of which is connected with the locking button 252, and the other end is connected with the cover body 242; under normal conditions, the locking button 252 and its locking post 253 are under the force of the spring 254 In one position, the flange 255a of the engaging member 255 faces the inner wall slope surface 251a of the shaped hole 251. As long as the operator applies the cover 242 to the base 241, the flange 255a of the catch 255 contacts the sloped surface 251a.
  • the flange 255a of the engaging member 255 slides along the slope surface 251a, and the locking post 253 causes the locking button 252 to rotate against the force of the spring 254; when the flange 255a of the engaging member 255 is along the slope surface
  • the latching member 255 and the locking post 253 fall into the bottom of the shaped hole 251 and pass through the shaped hole 251.
  • the locking post 253 of the shaped hole 251 is reversely rotated by the spring 254.
  • the engaging member 255 of the shaped hole 251 locks the cover 242 to the base 241 by the engaging action of the flange 255a and the sloped surface 251a.
  • the clip 255 disposed at the lower end of the lock post 253 is rotated to a position offset from the inclined surface 251a, and the lock post 253 can be released from the deformed hole 251 to be unlocked.
  • the receiving cavity 244 disposed between the base 241 and the cover 242 selectively locks the chain saw first handle assembly through the locking member 246.
  • the basic structure of the chain saw 20' in this embodiment is substantially the same as that of the chain saw 20, and will not be described herein.
  • the main housing 34 between the handle receiving end 40 and the motor housing 32 is provided with an opening 260, the opening 260 having a width matching the inner tube 202 connecting piece fitting portion 223a.
  • the stepped engaging portion 223a is engaged with the opening 260.
  • the second handle assembly 200 is mated to the saw chain 20 to facilitate cutting of the workpiece at a higher position.
  • the connecting member 223 at the end of the inner tube 202 is fixedly coupled to the main housing 34, and the grip portion 62 of the first handle assembly 36 is locked in the receiving cavity 244 of the locking mechanism 240 (refer to FIG. 21).
  • the inner control switch (not shown) is in a triggered state due to being defined by the receiving cavity 244, and the plug 177a of the first handle assembly 36 is inserted into the socket 215 such that the first handle assembly 36. Electrically conductive with the second handle assembly 200.
  • the relative position of the outer tube 201 and the first handle assembly 36 is fixed by the locking mechanism 240, and the relative position of the inner tube 202 and the chain saw main housing 34 is fixed by the connecting member 223. Therefore, when the outer tube 201 slides relative to the inner tube 202, linear movement of the first handle assembly grip portion 62 relative to the main housing 34 can be achieved. Since the sleeve 203 is fixedly connected with respect to the inner tube 202, in a specific operation, the plug 233 is first connected to an external power source, then the sleeve 203 of the outer tube 201 is held by one hand, and the grip of the second handle assembly 200 is held by the other hand.
  • the attachment mechanism may be a rack and pinion mechanism (not shown).
  • the rack and pinion mechanism generally includes a rack that is fixedly coupled to the first handle assembly 36, and a gear that is fixedly coupled to the support plate 24, and by pushing or pulling the first handle assembly 36, the gear is pivoted to cause the support plate 24 to rotate.
  • the attachment mechanism can be a pulley mechanism (not shown).
  • the pulley mechanism usually comprises a pulley and a rope, the rope is sleeved on the pulley, one end of the rope is fixedly connected with the first handle assembly 36, the other end of the rope is fixedly connected to the main casing 34, and the pulley is fixed by the follower 82 and the support plate 24.
  • the operator pushes or pulls the first handle assembly 36, and the pulley drives the follower 82 to pivot, so that the follower 82 drives the support plate 24 to rotate.

Description

植物修剪机 技术领域
本发明涉及一种植物修剪机，尤其是涉及一种具有延伸杆的植物修剪机， 例如具有延伸杆的链锯。
背景技术
目前， 市场上出现多种用于植物类修剪的工具， 例如剪刀用于修剪一些 相对细小的枝叶。 还有修枝机和链锯通常用来修剪相对粗的树木等。
传统的链锯包括一个由链条和用来支撑链条的支撑板组成的工作头， 链 条受马达驱动， 绕支撑板做旋转运动， 传统的链锯还包括位于工作头后部的 主手柄， 位于工作头和主手柄之间的辅助手柄。 在切割时， 这种传统链锯的 工作头通常只是受电机驱动使得链条绕支撑板旋转， 支撑板一般是不动的， 切割过程中， 操作者一手握主手柄， 另一手握辅助手柄， 为了保证切割顺利 进行， 操作者的手需要朝切割方向旋加一个压力。 当从上往下切割时， 由于 机器本身具有向下的重力， 这种传统的链锯相对较容易且较省力一些。 但如 果需要从下往上切割， 或者需要从侧面切割， 操作者就会觉得比较费力。
美国公开专利申请 US 2 005 / 0022 38 8 A 1 号揭示了一种链锯包括由链条和 用来支撑链条的支撑板组成的工作头， 链条受马达驱动， 绕支撑板做旋转运 动， 这种链锯还包括绕一个固定轴线相对枢转的一对臂， 工作头安装于其中 的一个臂上且可随该臂一起绕所述固定轴线相对另一个臂枢转。 每个臂对应 的都连接有一个手柄部供操作者手握。 操作过程中， 操作者相对的枢转所述 手柄部会使得切割头朝切割方向移动从而使得切割工作顺利进行。 但是这种 结构使得在有些情况下操作就不太舒适， 例如当需要切割高处的树枝时， 操 作者施力就比较困难； 另外， 当需要切割放在地上的木头时， 操作者就需要 弯下腰操作， 这样如果工作时间较长就很容易使人感觉疲劳。
另外， 如果要切割较高树木上的枝条， 这种传统的链锯通常包括一个延 伸杆， 延伸杆通常被可拆卸的固定连接于链锯的主手柄上， 操作时， 操作者 手握延伸杆， 朝切割方向施力， 这种操作往往会比较费力。
美国专利 US 7 1 52 32 8 B 2号揭示了一种链锯包括工作头，主手柄和延伸杆， 当需要切割较高处树枝， 用户将延伸杆固定连接于主手柄上， 延伸杆与主手 柄之间电性连接， 用户只要手握延伸杆就可以进行操作， 但是这种链锯在操 作时， 需要操作者朝切割方向施加一个很大的力， 会使得操作过程比较费力。
发明内容
本发明所要解决的技术问题是提供一种操作舒适的植物修剪机。
为了解决上述问题， 本发明提供了一种植物修剪机， 包括：
主壳体；
切割元件；
用于支撑所述切割元件的支撑板；
用于驱动所述切割元件的马达；
第一手柄组件；
第二手柄组件；
锁紧机构用于将所述第二手柄组件可拆卸的连接于所述第一手柄组件上； 第一手柄组件和支撑板之间设连接机构；
第一手柄组件或第二手柄组件可操作的沿朝向或远离支撑板的方向相对 主壳体线性运动，所述连接机构使得第一手柄组件或第二手柄组件的线性 运动转换为支撑板的摆动。
在本发明所揭示的植物修剪机中， 由于第一手柄组件和第二手柄组件都 是做线性运动， 所以会使得操作者的操作比较舒适。
本发明的优选实现方案还可以是以下几种：
优选的， 本发明的植物修剪机还包括抵靠壁， 该抵靠壁用于在工作时抵 靠工件。
优选的， 本发明的植物修剪机还包括 U形护罩。
优选的， 本发明的 U形护罩具有 U形内侧边， 所述 U形护罩还包括 U 形钳口， 该 U形钳口可拆卸的连接于 U形内侧边上。
优选的， 本发明的 U形钳口的内侧上设有齿。
优选的， 本发明的 U形钳口由钢材制成。
优选的， 本发明的第一手柄组件包括导杆部， 所述主壳体具有手柄收容 腔用于收容所述导杆部， 所述手柄收容腔具有纵向延伸轴线 X 2 , 导杆部可操 作的沿着手柄收容腔的纵向延伸轴线作线性运动。
优选的， 本发明的第一手柄组件包括握持部， 该握持部呈 D形。
优选的， 本发明的第一手柄组件握持部包括呈直线形的握持边和呈弧形 的连接边，该第一手柄组件握持部通过该连接边与第一手柄组件导杆部连接。 优选的， 本发明的所述握持边的两端部对称的设有安全开关。
优选的， 本发明的握持边内侧设有控制开关。
优选的， 本发明的连接机构为平面多杆机构。
优选的， 本发明的平面多杆机构包括主动件、 连接杆和从动件， 所述主 动件由所述第一手柄组件承担， 所述从动件与所述支撑板固定连接， 所述连 接杆位于所述主动件和从动件之间， 且分别以铰接的方式与主动件和从动件 连接。
优选的， 本发明的植物修剪机包括主壳体， 所述连接杆包括与主动件铰 接的第一连杆， 与第一连杆铰接的第二连杆， 第二连杆的一端与第一连杆铰 接， 第二连杆的另一端相对枢转的连接于主壳体上， 与第二连杆铰接的第三 连杆， 第三连杆的一端与第二连杆的中间部位铰接， 第三连接杆的另一端与 从动件铰接。
优选的， 本发明的植物修剪机包括主壳体， 所述主壳体和所述从动件之 间设有扭簧， 扭簧的一端与主壳体固定连接， 扭簧的另一端与从动件固定连 接。
优选的， 本发明的植物修剪机包括限位机构， 用来限制支撑板的摆动。 优选的， 本发明的限位机构包括设于主壳体上的槽以及与支撑板固定连 接的突柱， 槽的两端分别为第一止档面和第二止档面， 所述突柱可操作的与 第一止档面和第二止档面配合。
优选的， 本发明的槽为腰形槽， 该腰形槽沿圆周方向延伸。
优选的， 本发明的植物修剪机包括马达， 马达上固定连接有马达支架， 所述突柱从马达支架上延伸而出并穿过所述槽。
优选的， 本发明的腰形槽沿圆周方向等间隔的设置有三个， 所述突柱沿 圆周方向等间隔的设置有三个， 该三个突柱分别穿过所述三个腰形槽内。
优选的， 本发明的第二手柄组件包括第二手柄组件握持部和第二手柄组 件延伸部， 所述第二手柄组件延伸部包括第一端和第二端， 所述第一端与第 二手柄组件握持部连接， 所述第二端与所述第一手柄组件连接， 所述锁紧机 构位于所述第二端与所述第一手柄组件之间。
优选的， 本发明的第二手柄组件包括第二手柄组件握持部和第二手柄组 件延伸部， 所述第二手柄组件握持部呈 D形。
优选的， 本发明的第一手柄组件包括握持部， 该握持部上设有手柄收容 孔， 所述锁紧机构包括锁紧支架， 该锁紧支架可拆卸的收容于该手柄收容孔 中。
优选的， 本发明的锁紧支架上设有第一配合面， 所述第一手柄组件的握 持部的一侧上设有第二配合面， 该第一配合面和第二配合面相配合， 且两者 的形状相匹配。
优选的， 本发明的锁紧机构还包括锁紧旋钮， 该锁紧旋钮可操作的使得 第一手柄组件的握持部被夹紧于所述锁紧支架和锁紧旋钮之间。
优选的， 本发明的第一手柄组件的握持部的另一侧上设有第三配合面， 所述锁紧旋钮上设有第四配合面， 该第四配合面可选择的与第三配合面相配 合。
优选的， 本发明的第一手柄组件包括导杆部， 该导杆部上可拆卸的固定 连接有 C形支架， 所述主壳体上设有狹长开口， 所述 C形支架从狹长开口中 伸出， 所述 C形支架可沿所述狹长开口移动， 所述第二手柄组件包括延伸部， 该延伸部被支撑于所述 C形支架上。
优选的， 本发明的第一手柄组件和第二手柄组件两者中的一个上设有插 头， 两者中的另一个上设有插座， 通过插头和插座的配接使得第一手柄组件 和第二手柄组件进行电连接。
优选的， 本发明的植物修剪机还包括可滑动的安装于所述第二手柄组件 上的套筒， 所述植物修剪机进一步包括绳子， 所述绳子的一端连接于所述主 壳体上， 所述绳子的另一端连接于所述套筒上。
优选的， 本发明的主壳体上设有卡钩， 所述绳子的一端挂于所述卡钩上。 优选的， 本发明的套筒上设有弹性凸轮夹， 用于可操作的将绳子夹紧于 其巾。
优选的， 本发明的植物修剪机还包括操作组件， 所述操作组件具有活动 地安装于所述第二手柄组件的操作元件和可拆卸地与主壳体配接的连接元 件。
优选的， 本发明的第二手柄组件包括第二手柄握持部和与第一手柄组件 相连接的外管。
优选的， 本发明的连接元件包括与外管相连接的内管， 所述内管第一端 延伸于外管的内部， 所述内管第二端延伸于外管的外部与所述主壳体配接。
优选的， 本发明的操作元件包括安装于外管并与内管固定配接的套筒， 所述外管管壁上设有轴向延伸的开口， 所述套筒相对外管沿开口轴向滑动。 优选的， 本发明的主壳体上设置有开口， 所述内管的第二端设置有连接 件， 所述连接件具有台阶状配合部， 所述配合部可选择地与开口啮合锁定。
优选的， 本发明的第一手柄组件包括握持部， 所述锁紧机构包括收容腔， 所述握持部可选择地被锁定于所述收容腔内。
优选的， 本发明的锁紧机构包括枢轴连接的基座和盖体， 以及可选择地 将基座和盖体进行锁定的锁紧件， 所述锁紧件包括设置于盖体上锁紧钮， 固 定锁紧钮的锁柱， 以及固定锁柱的卡接件， 所述基座上设置有开孔， 所述卡 接件可选择地与所述开孔啮合锁定。
优选的， 本发明的基座上设置有通孔， 所述外管的第二端固定配接于通 孔内。
附图说明
下面结合附图对本发明做进一步详细的描述。
图 1 为本发明所揭示的链锯的立体图。
图 2为图 1所揭示的链锯的内部结构示意图。
图 3为图 1所揭示的链锯的主壳体的分解图。
图 4为图 3所揭示的链锯的第一半壳体的立体图。
图 5为图 3所揭示的链锯的第二半壳体的立体图。
图 6为图 1所揭示的链锯的从动件的立体图。
图 7为图 1所揭示的链锯的连接机构的运动原理图。
图 8为图 1所揭示的链锯的限位机构的立体图。
图 9为图 1所揭示的链锯在不工作时的状态图。
图 1 0为图 9所揭示的链锯在工作过程中的状态图。
图 1 1 为图 1所揭示的链锯在将要结束工作时的状态图。
图 1 2 为图 1所揭示的链锯带有第二手柄组件时的立体图。
图 1 3为图 1 2所揭示的链锯的锁紧机构的局部放大图。
图 1 4为图 1 2所揭示的链锯的锁紧机构未安装在第一手柄组件的局部分解图。 图 1 5为图 1 2所揭示的链锯的锁紧机构的局部分解图。
图 1 6为图 1 2所揭示的链锯当锁紧旋钮在第一位置时的示意图。
图 1 7为图 1 2所揭示的链锯当锁紧旋钮在第二位置时的示意图。
图 1 8 为图 1 2所揭示的链锯的 C形支架的立体图。 图 19 为图 12所揭示的链锯带绳子的局部立体图。
图 20为所另一第二手柄组件的主视图。
图 21 为图 20的俯视方向的剖视示意图。
图 22 为图 20 中第二手柄组件的分解图。
图 23为图 20所揭示的链锯的锁紧机构处于打开状态的立体图。
图 24为本发明所揭示的另一链锯的立体图。
图 25 为图 24所揭示的链锯中 I标记的局部放大示意图。
图 26为图 24所揭示的链锯带有另一第二手柄组件时的立体图。
具体实施方式
图 1 至图 2揭示了一种植物修剪机， 在本发明的一个实施方式中， 植物 修剪机为链锯 20, 链锯 20 包括用于加工工件的工作头 22, 工作头 11 包括支 撑板 24和安装于支撑板 24上的切割元件。 在本实施方式中， 切割元件为柔 性链条 26, 该柔性链条 26安装于支撑板 24 的外围， 且可绕该支撑板 24转 动。 支撑板 24所在的平面为支撑板平面。 在本发明的其他实施方式中， 工作 头可以是圆锯片、 往复锯等的锯条。 当工作头是圆锯片时， 切割元件可以认 为是圆锯片的切割部分， 支撑板可以认为是圆锯片的中心支撑部分。 当工作 头是类似往复锯的锯条时， 切割元件可以认为往复锯的锯条的切割刃部分， 支撑板可以认为是往复锯的锯条的切割刃的支撑部分。
链锯 20还包括马达 28, 马达 28 用于驱动工作头 22, 使得柔性链条 26 绕支撑板 24转动。 马达 28 具有马达输出轴 30, 该马达输出轴 30具有马达 输出轴轴线 XI, 该马达输出轴 30绕马达输出轴轴线 XI旋转从而驱动柔性链 条 26使其绕支撑板 24转动。 马达 28 收容于马达壳体 32 内。
进一步参照图 3 , 链锯 20 包括主壳体 34 , 在本发明的一个实施方式中主 壳体 34 由两个半壳体组成， 分别是第一半壳体 34a和第二半壳体 34b, 第一 半壳体 34a和第二半壳体 34b通过螺钉可拆卸连接， 在本发明的其他实施方 式中， 第一半壳体 34a和第二半壳体 34b也可以是本领域普通技术人员所能 想到的其他的连接方式， 例如可以是整体式设置， 也可以通过卡扣连接等。 马达壳体 32可拆卸的连接于第一半壳体 34a上。在本发明的一个实施方式中， 马达壳体是通过螺钉连接于第一半壳体 34a上。在本发明的其他实施方式中， 马达壳体 34a也可以与第一半壳体 34a 固定连接，例如马达壳体 32与第一半 壳体 34a整体式设置。 链锯 20 包括一个壳体盖 35, 第二半壳体 34b上设有接近孔 35a, 设置该 接近孔 35a 的目 的是方便用户更换柔性链条 26。 壳体盖 35 可拆卸的安装于 接近孔 35a上， 在本实施方式中， 壳体盖 35是通过螺栓固定连接于第二半壳 体 34b上。 在本发明的其他实施方式中， 壳体盖 35也可以是通过本领域普通 技术人员所能想到的其他的连接方式连接于第二半壳体 34b上。 不需要更换 柔性链条 26 时， 壳体盖 35覆盖住接近孔 35a。 当需要更换柔性链条 26 时， 用户可以通过扳手等工具将壳体盖 35从第二半壳体 34b上拆下。
链锯 20 包括第一手柄组件 36 (参照图 1)用于在工作过程中供操作者握 持操作。 参照图 3, 第一半壳体 34a 包括第一工作头收容端 38a、 第一手柄收 容端 40a和用于连接第一工作头收容端 38a和第一手柄收容端 40a的第一连 接部 42a。 第二半壳体 34b 包括第二工作头收容端 38b、 第二手柄收容端 40b 和用于连接第二工作头收容端 38b和第二手柄收容端 40b的第二连接部 42b。
参照图 4 至图 5, 第一工作头收容端 38a和第二工作头收容端 38b 均大 致呈 U形。 第一工作头收容端 38a具有第一 U形开口 43a。 第二工作头收容 端 38b具有第二 U形开口 43b。
第一工作头收容端 38a和第二工作头收容端 38b—起形成链锯的 U形护 罩 38 (参照图 1) , 该 U形护罩 38用于收容工作头 11。
第一工作头收容端 38a 包括第一上侧壁 44a 和第一下侧壁 46a, 第一上 侧壁 44a和第一下侧壁 46a之间界定了第一 U形开口 43a。 第二工作头收容 端 38b 包括第二上侧壁 44b和第二下侧壁 46b。 第二上侧壁 44b和第二下侧 壁 46b之间界定了第二 U形开口 43b。
第一上侧壁 44a和第二上侧壁 44b之间形成第一收容空间 48(参照图 1 )。 第一下侧壁 44b和第二下侧壁 46b之间形成第二收容空间 50(参照图 1 )。 第 一收容空间 48和第二收容空间 50用于收容工作头 11。 第一上侧壁 44a和第 二上侧壁 44b上分别设有若干开口 52, 该若干开口 52 的设置目 的是方便操 作者能清楚的看到工作头的当前位置。
第一工作头收容端 38a具有第一 U形内侧边 54a,该第一 U形内侧边 54a 设于第一工作头收容端 38a的内侧一圏， 即该第一 U形内侧边 54a设于第一 工作头收容端 38a靠近第一 U形开口 43a 的一侧， 一个第一 U形钳口 56a可 拆卸的设置于第一 U形内侧边 54a上。 该第一 U形钳口 56 a的内侧设有一圏 齿 58a。 该第一 U形钳口 56a 由钢材制成。 第一 U形钳口 56a是通过铆钉连 接于第一 U形内侧边 54a上。
第二工作头收容端 38b具有第二 U形内侧边 54b,该第二 U形内侧边 54b 设于第二工作头收容端 38b的内侧一圏， 即该第二 U形内侧边 54b设于第二 工作头收容端 38b靠近第二 U形开口 43b的一侧， 一个第二 U形钳口 56b可 拆卸的设置于第二 U形内侧边 54b上。 该第二 U形钳口 56b的内侧设有一圏 齿 58b。 该第二 U形钳口 56b 由钢材制成。 第二 U形钳口 56b是通过铆钉连 接于第二 U形内侧边 54b上。
第一 U形内侧边 54 a和第二 U形内侧边 54b—起形成 U形护罩 38 的 U 形内侧边 54。 第一 U形钳口 56a和第二 U形钳口 56b—起形成 U形护罩 38 的 U形钳口 56。 U形护罩 38 的 U形钳口 56可拆卸的连接于 U形护罩 38 的 U 形内侧边 54上。 上述 U形钳口 56 可以作为抵靠壁， 用于在工作时抵靠待切 割工件用。 U形钳口 56 的内侧一圏设有齿 58a, 58b。 设置齿 58a, 58b的目 的 是当切割较细的树枝时， 这种带齿的 U形钳口 56可以可靠的支撑树枝， 防止 树枝弹出。
参照图 1和图 3, 马达壳体 32通过螺钉连接于第一半壳体 34a的第一连 接部 42a上。 第一半壳体 34a的第一手柄收容端 40a和第二半壳体 34b的第 二手柄收容端 40b均纵向延伸， 两者通过螺钉连接。 第一半壳体 34a的第一 手柄收容端 40a和第二半壳体 34b的第二手柄收容端 40b—起形成主壳体 34 的手柄收容端 40。
手柄收容端 40具有手柄收容腔 59。 该手柄收容腔 59形成于第一手柄收 容端 40a和第二手柄收容端 40b之间。该手柄收容腔 59用于收容第一手柄组 件 36。 手柄收容腔 59具有纵向延伸轴线 X2, 第一手柄组件 36被收容于手柄 收容腔 59 内并可操作的沿纵向延伸轴线 X2作线性运动。
进一步参照图 2, 第一手柄组件 36 包括导杆部 60和握持部 62, 导杆部 60为细长型杆， 导杆部 60收容于手柄收容腔 59 内。 握持部 62 大致呈 D形。 D形握持部 62 的一边为握持边 64, 该握持边呈直线形。 D形握持部 62 的另 一边为连接边 66, 该连接边 66 呈弧形。 握持部 62通过连接边 66 与与导杆 部 60连接。 握持边 64的内侧上设有控制开关 68, 控制开关 68与马达 28 电 性连接用来控制马达 28 的启动和停止。 握持边 64的两端设有安全开关 70, 安全开关 70对称的设置于握持边 64 的两端， 使得无论用左手还是右手操作 都比较方便。 连接边 66与导杆部 60相连。 导杆部 60收容于手柄收容腔 59 内，该导杆部 60可操作的沿着手柄收容 腔 59 的纵向延伸轴线 X2作线性运动。
第一手柄组件 36与工作头 22之间设有连接机构， 在本实施方式中， 连 接机构是直接连接第一手柄组件 36和支撑板 24的， 该连接机构使得第一手 柄组件 36 的线性运动转换为支撑板 24 的枢转运动。 在本实施方式中， 连接 机构为平面多杆机构 72。
参照图 2, 平面多杆机构 72 包括主动件、 连接杆和从动件 82。 连接杆位 于主动件和从动件 82之间，且分别以铰接的方式与主动件和从动件 82连接。 连接杆包括第一连杆 76、 第二连杆 78和第三连杆 80。 主动件由第一手柄组 件 36 的导杆部 60承担， 当操作者朝向工作头 22 的方向推握持部 62 时， 导 杆部 60可沿手柄收容腔 59 的纵向延伸轴线 X2作线性运动。 从动件 82与支 撑板 24 固定连接， 第一连杆 76、 第二连杆 78和第三连杆 80位于主动件和 从动件 82之间， 即位于第一手柄组件 36 的导杆部 60和从动件 82之间。 第 一连杆 76 的一端与第一手柄组件 36 的导杆部 60以铰接的方式连接。第一连 杆 76 的另一端与第二连杆 78 的一端以铰接的方式连接，第二连杆 78 的另一 端可相对枢转的连接于第一半壳体 34a 的连接部 42a上。第三连杆 80的一端 与第二连杆 78 的中间部以铰接的方式连接。 第三连杆 80的另一端与从动件 82 以铰接的方式连接。
参照图 6, 从动件 82呈 V形设置， V形从动件 82 的 V形一边 84与第三 连杆 80的另一端以铰接的方式连接。 V形从动件 82 的 V形另一边 86与支撑 板 24之间通过螺栓固定连接。 V形从动件 82 的 V形底部 88安装于马达输出 轴 30上。 由于从动件 82 与支撑板 24 固定连接， 当从动件 82绕马达输出轴 轴线 XI旋转时，支撑板 24也同时绕马达输出轴轴线 XI在支撑板平面内旋转。
参照图 7为平面多杆机构的运动原理图，主动件（导杆部 60)做直线运动， 当主动件（导杆部 60)从第一位置 （ 实线所代表的位置） 运动到第二位置 （虚 线所代表的位置） 时， 从动件 82从第一位置 （ 实线所代表的位置）枢转到第 二位置 （虚线所代表的位置）， 箭头 A1代表主动件（导杆部 60)的运动方向， 箭头 A2代表从动件 82 的运动方向。
链锯 20 包括限位机构， 用来限制支撑板的旋转， 从而防止支撑板过度旋 转而破坏 U形护罩。 参照图 8, 马达 28 的端部安装有马达支架 （未图示）， 马达支架与马达 28 固定连接， 从马达支架上沿着马达输出轴 30的方向延伸 出三个突柱 90, 这三个突柱 90沿着圆周方向等间隔设置。 每个突柱 90上都 设有第一收容孔 92。 第一半壳体 34a 的第一连接部 42a上沿圆周方向等间隔 的设有三个腰形槽 94, 腰形槽 94 沿圆周方向延伸。 上述三个突柱 90分别穿 过上述三个腰形槽 94 内， 突柱 90可在腰形槽 94 内沿着圆周方向移动。
同时参照图 6， V形从动件 82 的 V形底部 88 大致呈圆形， 该 V形底部 88 的中间部位处设置有安装孔 96, 通过该安装孔 96, 从动件 82被套设于马 达输出轴 30上。 该 V形底部 88上沿圆周方向等间隔的设置有三个第二收容 孔 98, 该三个第二收容孔 98 与设于上述三个突柱 90上的第一收容孔 92分 别对齐， 从而使得螺栓可以同时穿过第一收容孔 92和第二收容孔 98, 以将 V 形从动件 82与突柱 90 固定连接，由于 V形从动件 82与支撑板 24 固定连接， 从而使得支撑板 24与突柱 90 固定连接。并且 V形从动件 82 固定连接于马达 支架上， 这种连接方式使得从动件 82 的枢转运动会带动马达 28—起转动。
每个腰形槽 94 的一端设有第一止档面 100, 腰形槽 94 的另一端设有第 二止档面 102, 突柱 90可操作的在腰形槽 94 内移动， 分别与第一止档面 100 和第二止档面 102配合。 当突柱 90与第一止档面 100配合时， 工作头 22被 收容于第一收容空间 48 内， 支撑板 24旋转至 U形护罩 38 的最上端， 此时工 作头 22 与 U 形护罩 38 最上端保持一定的距离， 使得工作头 22 不会碰到 U 形护罩 38最上端。 当突柱 90与第二止档面 102配合时， 工作头 22被收容于 第二收容空间 50 内， 支撑板 24旋转至 U形护罩 38 的最下端， 此时工作头 22与 U形护罩 38最下端保持一定的距离， 使得工作头 22 不会碰到 U形护罩 38最下端。
在第一半壳体 34a的第一连接部 42a和从动件 82之间设有扭簧 106 (参 照图 8 ), 扭簧 106 的一端与第一半壳体 34a 的连接部 42a 固定连接。 从动件 82上设有小孔 108 (参照图 6 ), 扭簧 106 的另一端收容于该小孔 108 内， 这 种连接方式使得扭簧 106 固定连接于从动件 82上。设置扭簧 106 的目 的是无 论什么时候当切割结束后， 工作头 22 都会自动弹回初始位置， 即工作头 22 弹回第一收容空间 48 内， 工作头完全收容于 U形护罩 38 内， 这样可以保证 操作的安全性。
链锯 20 包括传动机构 110 (参照图 2 ) 位于马达 28与工作头 22之间， 传动机构 110 包括链轮 112设于马达输出轴 30上并可随马达输出轴 30—起 绕马达输出轴轴线 XI旋转。 链轮 Π2与柔性链条 26啮合可驱动柔性链条 26 绕支撑板 24转动。
工作时， 用手压设于第一手柄组件 36握持部 62上的控制开关 68, 就会 开启马达 28, 从而马达输出轴 30开始旋转， 链轮 112 随马达输出轴 30—起 旋转， 链轮 112旋转带动柔性链条 26绕支撑板 24转动。 同时， 操作者手握 第一手柄组件 36 的握持部 62, 朝向工作头 22 的方向推动第一手柄组件 36, 导杆部 60会沿手柄收容腔 59 的纵向延伸轴线 X2作线性运动，通过平面多杆 机构 72的作用，支撑板 24在支撑板平面内绕马达输出轴轴线 XI作枢转运动， 从而开始切割工作。 由于支撑板 24与马达 28之间是固定连接， 使得支撑板 24 的枢转会带动马达 28 —起转动。 在本实施方式中， 是通过朝向工作头方 向推动第一手柄组件 36, 从而使支撑板 24 枢转实现切割， 需要注意的是， 本领域普通技术人员通过简单的变换平面多杆机构 72 的位置也可以实现通 过朝向远离工作头方向拉第一手柄组件 36, 使得支撑板 24枢转实现切割。
参照图 9, 图 10和图 11, 为链锯 20的工作状态示意图， 图 9 为链锯处 于非工作状态时的示意图， 此时， 工作头 22完全收容于 U形护罩 38 的第一 收容空间 48 内。 参照图 10, 朝 D向推动第一手柄组件 36, 工作头 11就会顺 着 E向枢转， 并开始对工件进行切割， 从第一收容空间 48 内逐渐露出。 参照 图 11, 继续朝 A向推动第一手柄组件 36, 工作头 22继续顺着 E向枢转， 从 而部分的进入第二收容空间 50, 并结束对工件的切割。
参照图 12, 链锯 20还包括一个延伸杆以方便切割较高处的工件， 在此 延伸杆为第二手柄组件 116。第二手柄组件 116 包括第二手柄组件握持部 118 和第二手柄组件延伸部 120。 第二手柄组件延伸部 120 包括第一端 122 和第 二端 124, 第一端 122 与第二手柄组件握持部 118 连接， 第二端 124 与第一 手柄组件 36连接。 在第二端 124与第一手柄组件 36之间设有锁紧机构 126。 第二手柄组件握持部 118呈 D形。
第二手柄组件握持部 118 的一边为握持边 128, 另一边为连接边 130, 握 持边 128 的内侧上设有控制开关 132, 控制开关 132 与马达 28 电性连接用来 控制马达 28 的启动和停止。 握持边 128 的两端设有安全开关 134, 安全开关 134 对称的设置于握持边 128 的两端， 使得无论用左手还是右手操作都比较 方便。 连接边 130与第二手柄组件延伸部 120相连。
第二手柄组件延伸部 120为纵向延伸的细长型杆， 这种延伸部 120可以 做成伸缩杆的形式。 参照图 13和图 14, 第二端 124通过锁紧机构 126与第一手柄组件 36可 拆卸的固定连接。可拆卸的固定连接是指第二端 124与第一手柄组件 36是可 拆卸的连接， 且当两者连接上后， 两者之间就不会有相对运动。 锁紧机构 126 包括锁紧支架 144。 锁紧支架 144的一侧上间隔的设有两个 C形夹紧块 146, 每个 C形夹紧块 146上分别安装有一个 C形夹紧片 148, C形夹紧块 146与 C 形夹紧片 148之间通过螺栓螺母连接。 C形夹紧片 148 与 C形夹紧块 146相 对应设置， 两者之间形成一个夹紧孔 150, 第二手柄组件 116 的第二端 124 收容于该夹紧孔 150 中。 该夹紧孔 150的形状与第二手柄组件 116 的第二端 的截面形状相匹配， 使得第二手柄组件 116 的第二端被夹紧于其中。
第一手柄组件 36 的握持部 62上设有手柄收容孔 152。该手柄收容孔 152 是由第一手柄组件 36 的握持边 64和连接边 66—起限定而成的。该手柄收容 孔 152 的形状大致呈 D形， 锁紧支架 144可拆卸的收容于该手柄收容孔 152 中， 锁紧支架 144的外形与手柄收容孔 152 的形状大致相同。
参照图 14, 锁紧支架 144 的另一侧上设有第一配合面 154。 第一手柄组 件 36 的握持部 62 的握持边 64和连接边的一侧上设有第二配合面 156, 锁紧 支架 144被收容于手柄收容孔 152 中， 第二配合面 156和第一配合面 154相 配合且两者的形状相匹配。 这样以来， 当锁紧支架 144被收容于所述手柄收 容孔 152 中时， 锁紧支架 144在手柄收容孔中不会有任何的转动。 当锁紧支 架 144 被收容于手柄收容孔 152 中时， 设于第一手柄组件 36 上的控制开关 68被锁紧支架 144压住， 处于电性导通的状态。
参照图 15, 锁紧机构 126还包括两个锁紧旋钮 158。 锁紧旋钮 158可操 作的将第一手柄组件 36 的握持部 62 夹紧于锁紧支架 144和锁紧旋钮 158之 间。
第一手柄组件 36 的握持部 62 的连接边 66 的另一侧上设有第三配合面 159 (参照图 14 )。
参照图 15, 锁紧旋钮 158 包括操作部 160, 主体部 162 和配接部 164。 操作部 160位于锁紧旋钮 158 的最上端，供操作者手来进行操作。主体部 162 上设有第四配合面 166。 配接部 164为带螺紋结构的柱状体。 锁紧支架 144 上设有两个旋钮收容部 168 用于部分的收容锁紧旋钮 158。 旋钮收容部 168 包括直径较小的收容通孔 170 和直径较大的收容空腔 172。 其中直径较小的 收容通孔 170用于收容锁紧旋钮 158 的带螺紋结构的柱状体部分。 直径较大 的收容空腔 172用于收容锁紧旋钮 158 的主体部。 带螺紋结构的柱状体包括 一个自 由端， 该自 由端与螺母配合， 使得锁紧旋钮 158被可靠的安装于锁紧 支架 144上。 其中， 第四配合面 166可选择的和第三配合面 159配合， 两者 的形状相匹配。
锁紧旋钮 158被可旋转的在第一位置和第二位置之间移动。 参照图 16, 当锁紧旋钮 158位于第一位置时， 第一配合面 154和第二配合面 156配合； 第三配合面 159和第四配合面 166 配合， 此时第一手柄组件 36 的握持部 62 被紧紧地夹持于锁紧旋钮 158和锁紧支架 144之间。
参照图 17 , 180度旋转锁紧旋钮 158, 此时当锁紧旋钮 158位于第二位 置， 第四配合面 166被旋转的远离第三配合面 159, 即第四配合面 166被旋 转的与第三配合面 159 不配合。 此时锁紧支架 144可从第一手柄组件的手柄 收容孔中取下。
参照图 18,第一半壳体 34a的第一手柄收容端 40a上设狹长的开口 174。 第一手柄组件 36 的导杆部 60上安装有一个 C形支架 176, 该 C形支架 176 通过螺栓螺母固定于导杆部 60上。 C形支架 176从第一手柄收容端 40a上的 狹长的开口 174 中伸出。 第二手柄组件 116 的第二端被支撑于 C形支架 176 上。 C形支架 176为铝制材料。
参照图 12, 第一手柄组件 36 和第二手柄组件 116 电性连接。 第一手柄 组件 36 的握持部 62上设有电线， 该电线的一端连接有插头 177a, 该电线的 另一端与控制开关 68、 马达 28等电性导通。 第二手柄组件 116 的第二端 124 上设有电线， 该电线的一端设有插座 177b, 该插座 177b与上述插头 177a可 配接以进行电连接。 第二手柄组件握持部 118上设有插头 177c, 该插头 177c 用来与外部电源连接。 电线的另一端通过导线与设于第二手柄组件握持部 118上的控制开关电性导通。
需要将第二手柄组件 116安装于第一手柄组件 36上时， 将 C形支架 176 安装于第一手柄组件 36上。 一旦 C形支架 176被安装上以后， 就可以不用拿 下来， 即便只使用第一手柄组件 36 而不需要第二手柄组件 116 时， C形支架 176也可以保留在第一手柄组件 36上， 这样会使得以后比较省事。 将锁紧支 架 144与锁紧旋钮 158连接，将第二手柄组件 116与锁紧支架 144 固定连接。 将第二手柄组件 116 的第二端 124穿过 C形支架 176,这样第二手柄组件 116 的第二端 124就可以被支撑于 C形支架 176上。 用手同时压住第一手柄组件 36 的安全开关 70和控制开关 68,将锁紧支架 144穿过第一手柄组件 36 的手 柄收容孔 152 内， 当锁紧支架 144慢慢的进入手柄收容孔 152 内时， 松开安 全开关 70和控制开关 68, 旋转锁紧旋钮 158, 使得第三配合面 159和第四配 合面 166配合， 此时第一手柄组件 36 的握持部 62被夹紧于锁紧支架 144和 锁紧旋钮 158之间。 将第一手柄组件 36上的插头 177a插入第二手柄组件上 的插座 177b 内， 使得第一手柄组件 36和第二手柄组件 116进行电性连接。 这样第二手柄组件 116就被可靠的安装于链锯 20上。
当需要切割较高处的树枝时， 可按照上述方法先把第二手柄组件 116安 装于链锯 20 上。 然后进行切割工作， 切割时， 将第二手柄组件握持部 118 上的插头 177c连接于外部电源上。 将 U形钳口 56放置于要切割的树枝上， 并抵住树枝， 此时操作者一手握住第二手柄组件握持部 118, 同时控制安全 开关 134和控制开关 132, 另一手握住第二手柄组件延伸部 120, 向着朝向或 者远离工作头 11 的方向推动或者拉第二手柄组件 116, 此时支撑板 24 就会 旋动， 开始切割树枝。
参照图 19, 链锯 20的第二手柄组件 116 的中间部上设有一个套筒 178, 套筒 178可操作的沿着中间部移动。 链锯 20进一步包括绳子 180 , 绳子 180 的一端连接于主壳体 34 上， 绳子 180 的另一端连接于套筒 178 上。 主壳体 34上设有卡钩 182, 绳子 180的一端挂于卡钩 182上。 套筒 178上设有两个 径向延伸的壁 184, 该两个径向延伸的壁 184之间界定了一个导槽 186, 绳子 180 的另一端从该导槽中穿过， 每个壁 184 的中间部位处安装有一个可枢转 的弹性凸轮夹 188, 每个弹性凸轮夹 188 具有一个凸轮面 190, 凸轮面 190 延伸至导槽 186 中， 绳子 180被夹持于两个凸轮面 190之间， 凸轮夹 188可 操作的将绳子 180夹紧或释放。
当需要切割较高处的较细的树枝， 可按照上述方法先把第二手柄组件 116 安装于链锯 20上并将设于第二手柄组件握持部 118上的插头 177c连接 于外部电源上。 将 U形钳口 56放置于要切割的树枝上， 此时操作者一手握住 第二手柄组件握持部 118, 同时控制安全开关 134和控制开关 132, 另一手握 住套筒 178, 向着朝向或者远离工作头 11 的方向推动或者拉第二手柄组件 116, 此时支撑板 24就会旋动， 开始切割树枝。
参照图 20和图 21 , 本发明另一实施方式的第二手柄组件 200 包括第二 手柄组件握持部 210 和第二手柄组件延伸部 220。 其中第二手柄组件延伸部 220 包括外管 201,其中手柄组件握持部 210连接于外管 201 的第一端 211, 外管 201 的第二端 212 连接了锁紧机构 240。 用于连接第二手柄组件 200与 主壳体的连接元件包括内管 202, 内管 202相对外管 201 滑动设置。 相对内 管 202 固定设置的操作元件设置于外管 201, 本实施例中的操作元件为套设 于外管 201 的套筒 203, 套筒 203在外管 201 上距离握持部 210半米左右。 当然， 本实施例中的套筒可以用其它操作元件替代， 例如可以是与内管 202 固定连接且凸出于外管 201 的控制把手。 内管 202 的第一端 221延伸于外管 201 内部， 第二端 111延伸于外管 201 外部且设有与链锯主壳体固定连接的 连接件 223, 该连接件 223 由钢性材料制成， 其一端固定连接于内管 202 的 第二端 222 的外壁上， 另一端为 自由端， 该自 由末端部弯折形成台阶状配合 部 223a。 内管 202 的外壁上设置有纵向延伸的凹槽 217, 该凹槽 217在内管 202 相对外管 201 滑动时起导向作用。 本实施方式中的外管 201 及内管 202 由轻质的铝材制成， 重量轻且强度能满足要求； 本领域技术人员可以用其它 材料进行替换。 此处刚性材料制成内管 202与柔性材料制成的绳子是两种不 同的结构。
第二手柄组件握持部 210 呈 D形， 一边为握持边 228, 另一边为连接边 230, 握持边 228 的内侧上设置有控制开关 232, 握持边 228 的两端设有安全 开关 234, 连接边 230的外侧设置有导线， 导线的端部连接有插头 233。 内管 202 及外管 201 腔体中设有与插头 233 电性连接的连接导线 214, 连接导线 214 从内管 202 的第二端 111 腔体中穿出并连接有插座 215。 锁紧机构 240 包括基座 241和盖体 242, 基座 241设置转轴 245, 盖体 242 以转轴 245 为枢 转中心相对基座 241旋转， 基座 241设有收容腔 243用于收容外管 201, 基 座 241 与外管 201之间固定连接， 基座 241和盖体 242相对的内侧分别设置 有半圆形凹腔， 基座 241 和盖体 242之间设置锁紧件 246。 当基座 241 和盖 体 242 的相对位置通过锁紧件 246进行锁定时， 基座 241和盖体 242之间形 成一个收容腔 244。 进一步参照图 21和图 22, 第二手柄组件握持部 210通过 螺钉 216或者其它方式连接于外管 201 的第一端 211, 外管 201 上对应套筒 203 的部位设有沿纵向延伸的开口 205 , 套筒 203 由两个套筒半壳体 203a, 203b通过螺钉 216 或者其它方式连接而成。 外管 201 的内腔中设置有 纵向延伸的销钉 207, 销钉 207 —端设有直径大于销钉 207 的销钉头 207a, 销钉头 207 a抵靠于外管 201 第一端 211。 销钉 207上套设有弹簧 208 , 远离 销钉头 207 a的销钉 207部分被容纳套筒 209 内，这样弹簧 208 的一端与销钉 头 207 a抵靠配接， 另一端与套管 209抵靠配接， 套管 209相对弹簧 209 的另 一侧设置有连接件 213。 连接件 213设置成空心的圆柱体， 套管 209 外径与 连接件 213的内径相匹配而套接在一起， 沿连接件 213 高度方向的外壁的中 间部位设置一个通孔 213a, 内管 202 的第一端 221管壁上相应地设有一圆孔 221a, 套筒半壳体 203a 内侧相应位置设置一凹孔（ 图中未示出 ）， 圆柱销 206 贯穿于连接件 213的通孔 213a 中， 圆柱销 206—端突出于通孔 213a并穿过 内管圆孔 221a后， 通过外管开口 205 固定于套筒半壳体 203b 的凹孔中。 这 样， 套筒 203相对内管 202 固定连接， 即套筒 203与内管 202 的相对位置通 过销钉 207与连接件 213进行了 固定。当套筒 203相对外管 201进行滑动时， 设置于外管 201上的开口 205对套筒 203的滑动行程进行了限定。
进一步参照图 22及图 23, 锁紧机构 240的基座 241 包括基座体 241a与 基座体 241b, 基座体 241a与基座体 24 lb相对的内侧面分别设置半圆形凹腔 243a ( 图 22 中仅示出一个）， 基座体 241a与基座体 241b通过螺钉或其它方 式连接成一体，两半圆形凹腔 243a对接形成用于收容外管 201的收容腔 243, 外管 201 相对基座 241 是固定连接的。 锁紧件 246 包括设置于基座体 241b 上开孔 251, 所述开孔 251 为异形孔， 该异形孔内壁上延伸出向下的斜坡面 251a, 以及可旋转地设置于盖体 242 上的锁紧钮 252, 与锁紧钮 252 固定连 接的锁柱 253,锁柱 253上远离锁紧钮 252的末端固定连接有圆形卡接件 255, 卡接件 255上设有凸缘 255 a, 锁紧钮 252与锁柱 253之间设置有弹簧 254。 本实施例的弹簧 254为扭簧，其一端与锁紧钮 252连接，另一端与与盖体 242 相连接； 正常状态下， 锁紧钮 252及其锁柱 253在弹簧 254作用力下处于第 一位置， 此时卡接件 255 的凸缘 255a正对异形孔 251 内壁斜坡面 251a。 只 要操作者将盖体 242 向基座 241 方向施力，卡接件 255 的凸缘 255 a接触斜坡 面 251a。 在操作者的操作力下， 卡接件 255 凸缘 255a沿斜坡面 251a下滑， 同时锁柱 253克服弹簧 254作用力带动锁紧钮 252产生旋转； 当卡接件 255 凸缘 255 a沿斜坡面 251a滑动至第二位置时， 此时卡接件 255 与锁柱 253 — 起掉入异形孔 251底部并穿出异形孔 251, 此时异形孔 251 的锁柱 253在弹 簧 254作用下反向旋转而自动回复至第一位置， 异形孔 251 的卡接件 255利 用其凸缘 255 a与斜坡面 251a的卡接作用将盖体 242锁定于基座 241上。 当 需要解除锁定时， 只要反向旋转位于盖体 242 上方的锁紧钮 252, 使其带动 设置于锁柱 253下端的卡接件 255旋转至与斜面 251a相错开的位置，此时锁 柱 253就可从异形孔 251 中脱出解除锁定。 设置于基座 241 与盖体 242之间 的收容腔 244通过锁紧件 246可选择地将链锯第一手柄组件进行锁定。
参照图 24和图 25, 本实施方式中的链锯 20'的基本结构与链锯 20 大致 相同， 此处不作赘述。 其中位于手柄收容端 40，与马达壳体 32，之间的主壳体 34，上设置有开孔 260, 该开孔 260 的宽度与内管 202 连接件配合部 223a相 匹配。 当第二手柄组件 200与链锯 20，相连接时， 该台阶状的配合部 223a与 开孔 260啮合配接。
进一步参照图 24和图 26, 第二手柄组件 200配接于锯链 20，以方便切割 较高处的工件。 此时位于内管 202 末端的连接件 223 固定配接于主壳体 34， 上， 第一手柄组件 36，的握持部 62，锁定于锁紧机构 240的收容腔 244 (参照 图 21 ) 中， 此时位于握持部 62，内侧的控制开关 （ 图中未示出 ） 由于被收容 腔 244限定而处于触发状态， 第一手柄组件 36，的插头 177a，插入插座 215 中 使得第一手柄组件 36，与第二手柄组件 200 电性导通。 通过锁紧机构 240, 外 管 201 与第一手柄组件 36，相对位置被固定， 通过连接件 223, 内管 202与链 锯主机壳 34，的相对位置被固定。 因此当外管 201相对内管 202进行滑动时， 即能实现第一手柄组件握持部 62，相对主壳体 34，的线性运动。 由于套筒 203 相对内管 202 固定连接， 因此在具体操作时， 先将插头 233连接于外部电源， 然后将一手握持外管 201 的套筒 203, 另一手握持第二手柄组件 200 的握持 边 228, 并且控制安全开关和控制开关， 朝向或远离工作头的方向推动或拉 第二手柄组件 200的握持部 62，， 使握持部 62，相对套筒 203相对移动， 就能 推动锯链支撑板 24'旋转进行切割。
在本发明的其他实施方式中， 连接机构可以是齿轮齿条机构 （未图示）。 该齿轮齿条机构通常包括与第一手柄组件 36 固定连接的齿条， 和与支撑板 24 固定连接的齿轮， 通过推或者拉第一手柄组件 36, 使得齿轮枢转从而带动 支撑板 24转动。
在本发明的另一个实施方式中， 连接机构可以是滑轮机构 （未图示）。 滑 轮机构通常包括滑轮和绳子， 绳子套于滑轮上， 绳子的一端与第一手柄组件 36 固定连接， 绳子的另一端固定连接于主壳体 34上， 滑轮通过从动件 82 与 支撑板 24 固定连接， 操作时， 操作者通过推或者拉第一手柄组件 36, 滑轮 就会带动从动件 82枢转， 从而从动件 82 带动支撑板 24转动。

Claims

权 利 要 求 书
1. 一种植物修剪机， 包括：
主壳体；
切割元件；
用于支撑所述切割元件的支撑板；
用于驱动所述切割元件的马达；
第一手柄组件；
第二手柄组件；
锁紧机构用于将所述第二手柄组件可拆卸的连接于所述第一手柄组件上； 其特征在于：
第一手柄组件和支撑板之间设连接机构；
第一手柄组件或第二手柄组件可操作的沿朝向或远离支撑板的方向相对 主壳体线性运动，所述连接机构使得第一手柄组件或第二手柄组件的线性 运动转换为支撑板的摆动。
2. 根据权利要求 1所述的植物修剪机， 其特征在于： 所述植物修剪机还包括 抵靠壁， 该抵靠壁用于在工作时抵靠工件。
3. 根据权利要求 1所述的植物修剪机， 其特征在于： 所述植物修剪机还包括 U形护罩。
4. 根据权利要求 3 所述的植物修剪机， 其特征在于： 所述 U 形护罩具有 U 形内侧边， 所述 U形护罩还包括 U形钳口， 该 U形钳口可拆卸的连接于 U形内侧边上。
5. 根据权利要求 4所述的植物修剪机， 其特征在于： 所述 U形钳口的内侧上 设有齿。
6. 根据权利要求 4所述的植物修剪机， 其特征在于： 所述 U形钳口由钢材制 成。
7. 根据权利要求 1所述的植物修剪机， 其特征在于： 所述第一手柄组件包括 导杆部， 所述主壳体具有手柄收容腔用于收容所述导杆部， 所述手柄收容 腔具有纵向延伸轴线 X 2 , 导杆部可操作的沿着手柄收容腔的纵向延伸轴 线作线性运动。
8. 根据权利要求 7所述的植物修剪机， 其特征在于： 所述第一手柄组件包括 握持部， 该握持部呈 D形。
9. 根据权利要求 8所述的植物修剪机， 其特征在于： 所述第一手柄组件握持 部包括呈直线形的握持边和呈弧形的连接边， 该第一手柄组件握持部通过 该连接边与第一手柄组件导杆部连接。
1 0.根据权利要求 9 所述的植物修剪机 其特征在于： 所述握持边的两端部 对称的设有安全开关。
1 1 .根据权利要求 9 所述的植物修剪机 其特征在于： 所述握持边内侧设有 控制开关。
12.根据权利要求 1 所述的植物修剪机 其特征在于： 所述连接机构为平面 多杆机构。
13.根据权利要求 12所述的植物修剪机 其特征在于 所述平面多杆机构包 括主动件、 连接杆和从动件， 所述主动件由所述第 -手柄组件承担， 所述 从动件与所述支撑板固定连接， 所述连接杆位于所述主动件和从动件之 间， 且分别以铰接的方式与主动件和从动件连接。
14.根据权利要求 13所述的植物修剪机， 其特征在于： 所述连接杆包括与主 动件铰接的第一连杆， 与第一连杆铰接的第二连杆， 第二连杆的一端与第 一连杆铰接， 第二连杆的另一端相对枢转的连接于主壳体上， 与第二连杆 铰接的第三连杆， 第三连杆的一端与第二连杆的中间部位铰接， 第三连接 杆的另一端与从动件铰接。
15.根据权利要求 13所述的植物修剪机， 其特征在于： 所述主壳体和所述从 动件之间设有扭簧， 扭簧的一端与主壳体固定连接， 扭簧的另一端与从动 件固定连接。
1 6.根据权利要求 1 所述的植物修剪机， 其特征在于： 所述植物修剪机包括 限位机构， 用来限制支撑板的摆动。
1 7.根据权利要求 16所述的植物修剪机， 其特征在于： 所述限位机构包括设 于主壳体上的槽以及与支撑板固定连接的突柱， 槽的两端分别为第一止档 面和第二止档面， 所述突柱可操作的与第一止档面和第二止档面配合。
1 8.根据权利要求 17所述的植物修剪机， 其特征在于： 所述槽为腰形槽， 该 腰形槽沿圆周方向延伸。
1 9.根据权利要求 18所述的植物修剪机， 其特征在于： 所述植物修剪机包括 马达， 马达上固定连接有马达支架， 所述突柱从马达支架上延伸而出并穿 过所述槽。
2 0.根据权利要求 19所述的植物修剪机， 其特征在于： 所述腰形槽沿圆周方 向等间隔的设置有三个， 所述突柱沿圆周方向等间隔的设置有三个， 该三 个突柱分别穿过所述三个腰形槽内。
2 1 .根据权利要求 1 所述的植物修剪机， 其特征在于： 所述第二手柄组件包 括第二手柄组件握持部和第二手柄组件延伸部， 所述第二手柄组件延伸部 包括第一端和第二端， 所述第一端与第二手柄组件握持部连接， 所述第二 端与所述第一手柄组件连接， 所述锁紧机构位于所述第二端与所述第一手 柄组件之间。
2 2 .根据权利要求 1 所述的植物修剪机， 其特征在于： 所述第二手柄组件包 括第二手柄组件握持部和第二手柄组件延伸部， 所述第二手柄组件握持部 呈 D形。
2 3.根据权利要求 1 所述的植物修剪机， 其特征在于： 所述第一手柄组件包 括握持部， 该握持部上设有手柄收容孔， 所述锁紧机构包括锁紧支架， 该 锁紧支架可拆卸的收容于该手柄收容孔中。
2 4 .根据权利要求 23所述的植物修剪机， 其特征在于： 所述锁紧支架上设有 第一配合面， 所述第一手柄组件的握持部的一侧上设有第二配合面， 该第 一配合面和第二配合面相配合， 且两者的形状相匹配。
2 5 .根据权利要求 24所述的植物修剪机， 其特征在于： 所述锁紧机构还包括 锁紧旋钮， 该锁紧旋钮可操作的使得第一手柄组件的握持部被夹紧于所述 锁紧支架和锁紧旋钮之间。
2 6 .根据权利要求 25所述的植物修剪机， 其特征在于： 所述第一手柄组件的 握持部的另一侧上设有第三配合面， 所述锁紧旋钮上设有第四配合面， 该 第四配合面可选择的与第三配合面相配合。
2 7 .根据权利要求 1 所述的植物修剪机， 其特征在于： 所述第一手柄组件包 括导杆部， 该导杆部上可拆卸的固定连接有 C形支架， 所述主壳体上设有 狹长开口， 所述 C 形支架从狹长开口中伸出， 所述 C 形支架可沿所述狹 长开口移动， 所述第二手柄组件包括延伸部， 该延伸部被支撑于所述 C形 支架上。
28.根据权利要求 1 所述的植物修剪机， 其特征在于： 所述第一手柄组件和 第二手柄组件两者中的一个上设有插头， 两者中的另一个上设有插座， 通 过插头和插座的配接使得第一手柄组件和第二手柄组件进行电连接。
29.根据权利要求 1 所述的植物修剪机， 其特征在于： 所述植物修剪机还包 括可滑动的安装于所述第二手柄组件上的套筒， 所述植物修剪机进一步包 括绳子， 所述绳子的一端连接于所述主壳体上， 所述绳子的另一端连接于 所述套筒上。
30.根据权利要求 29所述的植物修剪机， 其特征在于： 所述主壳体上设有 卡钩， 所述绳子的一端挂于所述卡钩上。
31 .根据权利要求 29所述的植物修剪机， 其特征在于： 所述套筒上设有弹性 凸轮夹， 用于可操作的将绳子夹紧于其中。
32 .根据权利要求 1 所述的植物修剪机， 其特征在于： 所述植物修剪机还包 括操作组件， 所述操作组件具有活动地安装于所述第二手柄组件的操作元 件和可拆卸地与主壳体配接的连接元件。
3 3.根据权利要求 32所述的植物修剪机， 其特征在于： 所述第二手柄组件包 括第二手柄握持部和与第一手柄组件相连接的外管。
34.根据权利要求 33所述的植物修剪机， 其特征在于： 所述连接元件包括与 外管相连接的内管， 所述内管第一端延伸于外管的内部， 所述内管第二端 延伸于外管的外部与所述主壳体配接。
35 .根据权利要求 34所述的植物修剪机， 其特征在于： 所述操作元件包括安 装于外管并与内管固定配接的套筒， 所述外管管壁上设有轴向延伸的开 口， 所述套筒相对外管沿开口轴向滑动。
36 .根据权利要求 35所述的植物修剪机， 其特征在于： 所述主壳体上设置有 开口， 所述内管的第二端设置有连接件， 所述连接件具有配合部， 所述配 合部可选择地与所述开口啮合锁定。
37 .根据权利要求 32所述的植物修剪机， 其特征在于： 所述第二手柄组件握 持部呈 D形。
38.根据权利要求 32所述的植物修剪机， 其特征在于： 所述第一手柄组件包 括设有控制开关的握持部， 所述锁紧机构包括第一收容腔， 所述握持部被 锁定于所述第一收容腔内。
39.根据权利要求 32所述的植物修剪机， 其特征在于： 所述锁紧机构包括枢 轴连接的基座和盖体， 以及可选择地将基座和盖体进行锁定的锁紧件。
40.根据权利要求 39所述的植物修剪机， 其特征在于： 所述锁紧件包括设置 于盖体上锁紧钮， 固定设置于锁紧钮的锁柱， 以及固定锁柱的卡接件， 所 述基座上设置有开孔， 所述开孔的内壁设置有斜坡面， 所述卡接件随锁紧 件旋转与所述开孔斜坡面啮合锁定。
根据权利要求 40所述的植物修剪机， 其特征在于： 所述锁紧机构的基座 上设置有第二收容腔， 所述外管的第二端固定配接于所述第二收容腔内。
PCT/CN2010/075212 2009-07-17 2010-07-16 植物修剪机 WO2011006446A1 (zh)

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EP10799444.4A EP2454934B1 (en) 2009-07-17 2010-07-16 Vegetation trimmer
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US20120110863A1 (en) 2012-05-10
CN101953275B (zh) 2012-07-18

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