CN105705004A

CN105705004A - Pruning tool

Info

Publication number: CN105705004A
Application number: CN201380080561.0A
Authority: CN
Inventors: 彼得·科尔; 帕特里克·米塞尔; 阿希姆·布罗贝尔
Original assignee: Husqvarna AB
Current assignee: Husqvarna AB
Priority date: 2013-11-08
Filing date: 2013-12-10
Publication date: 2016-06-22
Anticipated expiration: 2033-12-10
Also published as: CN109220290B; WO2015067327A1; CN105705004B; CN109220290A

Abstract

The present invention discloses a pruning tool (100) which includes a cutting assembly (102) with a blade arrangement including at least one movable component (104), a drive cable (156) attached to the at least one movable component at a first end (158) of the drive cable which is configured to actuate the at least one movable component, and an intermediate portion (103) coupled to the cutting assembly. Further, the pruning tool includes a handle (126) provided adjacent to the intermediate portion, wherein the handle is configured to be grasped by a user during operation of the pruning tool. The handle has a length in a range of about 0 cm to 30cm. A channel (136) is formed in the handle, wherein a second end (160) of the drive cable is received through the channel.

Description

Pruning tool

Technical field

The present invention relates to a kind of pruning tool, more particularly, to cutting implement pull component, for the adjustment device of cutting assembly and handle。

Background technology

This area is it is well known that such as have the instrument of the hand-bill of expansion link, hedge clipper, shrub and hedge trimmer。These instruments generally include: shear assembly, shear in assembly and have at least one movable part；Expansion link, is attached to shearing assembly；With driving cable, it has the first end being attached to shearing assembly and is attached to the second end pulling component。Component is pulled to be configured to shearing assembly transmission pulling force。This instrument can be used for the branch shearing in open area, and the space of open area is unrestricted。

But, for user, the above-mentioned instrument with bar (such as, expansion link) uses very uncomfortable in narrow space, and owing to without handle, therefore just cannot operate when there is no bar。Further, these instruments do not have the adjustment device regulating the width shearing jaw shearing assembly。Therefore, no matter branch is less or relatively big, during shearing manipulation, and the constant width shearing jaw of these instruments。Additionally, these instruments do not have the storing unit for pulling component, therefore pulling component can freely be suspended in one end, this is likely to result in trouble during depositing, transporting and during shearing manipulation。

Therefore, in view of the above, it is necessary to the instrument of a kind of improvement。

Summary of the invention

In view of the above, present invention aim to address or at least reduce problems discussed above。In embodiments of the present invention, this purpose realizes at least partially by the pruning tool with handle。Pruning tool includes: shearing assembly, have blade apparatus, blade apparatus includes at least one movable part；With driving cable, the end at driving cable is attached to this at least one movable part, wherein drives cable to be configured to activate this at least one movable part。Pruning tool farther includes to be coupled to the mid portion shearing assembly, and is arranged to the handle adjacent with mid portion。Handle construction becomes for user grasping during operation pruning tool。The length range of handle is about 10cm to 30cm。Form passage in handle, wherein drive the second end of cable to be received by passage。

According to embodiment, the length of the handle of pruning tool is about 15cm。

According to embodiment, mid portion is integrally formed with handle。

According to embodiment, shear assembly and include fixing blade and at least one movable part。This at least one movable part is removable blade。Removable blade is pivotally connected to fixing blade, wherein fixes and is formed with mid portion on blade。

According to embodiment, fixing blade and removable blade form the shearing jaw of the longitudinal axis offset orientation relative to handle。

Decreased food is shorter, and this can be easy in narrow space to shear branch, and in narrow space, the pruning tool with expansion link will be difficult to shear action。Passage can, for driving cable to provide support and protection, allow to drive cable to be connected to removable blade simultaneously。Owing to driving cable to be walked around by passage, therefore drive cable can to shift and be wrapped on branch。Passage additionally provides the ergonomic designs of improvement, in which during operation drives cable at user for entering tool near the hands that grips。Preferably, the horn-like shape of the second opening of passage can allow to pull the second end driving cable in different directions。

According to embodiment, pruning tool includes the adjustment device being configured to regulate the Breadth Maximum shearing jaw。

According to embodiment, regulate device and include being configured to the cam member of the pivoting action of restriction removable blade。According to another embodiment, regulate device and include being configured to the brake of the pivoting action of restriction removable blade。The adjustment device shearing jaw can optimize the scope pulling driving cable。When shearing twig, regulating device and can limit the scope shearing jaw, therefore need that removable blade moves shorter distance and shear, this makes to pull the scope driving cable to reduce。Therefore, the human engineering of pruning tool can be improved。

According to embodiment, what pruning tool farther included to be attached to the second end of driving cable pulls component。

According to embodiment, pruning tool has the first pontes being formed as contiguous mid portion。Component is pulled to include being configured to be detachably coupled to the second coupling part of the first pontes。

According to embodiment, the first pontes of handle includes chamber, and pulling the second coupling part of component is elongated portion。The chamber of handle is configured at least in part and removably receives the elongated portion pulling component。

According to embodiment, pruning tool farther includes to be attached to the bar of handle。

When using the pruning tool without bar, pruning tool provides for depositing the device pulling component。Pruning tool is also by being arranged on bar with pulling on member slide and provide utilizing bar to deposit the device pulling component。

According to embodiment, handle includes the grip being configured to grasp for user。Width portion is contiguous shears assembly。Further, the width in wide portion is more than the width of grip。

According to embodiment, component is pulled to include the retained part with T-shape。According to another embodiment, component is pulled to include the retained part with D-shape。

According to embodiment, component is pulled to farther include to drive cable coiler device。According to another embodiment, component is pulled to include driving cable expanding unit。

According to aspects of the present invention, the fixing blade sheared in assembly may be designed to guide branch towards shear blade。The far-end of fixing blade is flexible to avoid the hands of user to slide towards shear blade。Due to offset distance, the distance between pivotal point and junction point also increases。It is possible to increase the moment of the pulling force on removable blade。The words that the width in the wide portion of handle the first end is bigger help avoid the hands of user towards shearing assembly slip。Therefore, this structure can improve the human engineering of instrument and avoid user is caused any harm。D-shaped or T-shaped pull component can improve clamping while avoiding sliding, this pulling force being used for shearing branch increase applied。Drive cable coiler device can ensure that wind extra driving cable during operation and avoid being wound around。Cable expanding unit is driven to can ensure that smoothly from driving cable coiler device to take off driving cable。Therefore, the human engineering of pruning tool can be improved。

Accompanying drawing explanation

The present invention will be more fully described with reference to appended accompanying drawing, wherein:

Figure 1A illustrates the side view of pruning tool according to the embodiment of the present invention；

Figure 1B illustrates the decomposition view of the pruning tool in Figure 1A；

Fig. 2 illustrates the perspective view of the pruning tool with bar according to another implementation of the invention；

The component that wherein pulls that Fig. 3 A illustrates according to further embodiment of the present invention is in the perspective view of the non-pruning tool coupling and constructing and do not have bar；

The component that wherein pulls that Fig. 3 B illustrates in Fig. 3 A is in the side view of the pruning tool coupling structure；

Fig. 4 A and Fig. 4 B illustrates D-shaped according to the embodiment of the present invention and pulls the example view of component。

Fig. 5 illustrates T-shaped according to another implementation of the invention and pulls the perspective view of component。

Fig. 6 A and Fig. 6 B illustrates front view and the lateral side view of the pruning tool of the further embodiment according to the present invention, wherein regulates device and is in the structure illustrating the first Breadth Maximum shearing jaw；

The device that regulates that Fig. 7 A and Fig. 7 B illustrates in wherein Fig. 6 A and Fig. 6 B is in the front view of pruning tool and the lateral side view of the structure illustrating the second Breadth Maximum shearing jaw；

Fig. 8 A and Fig. 8 B illustrates the side view that wherein adjustment device according to another implementation of the invention illustrates the pruning tool of the various Breadth Maximums shearing jaw；

Detailed description of the invention

Being described more fully with the present invention below with reference to accompanying drawing, accompanying drawing illustrates the Example embodiments of the one or more aspects comprising the present invention of the present invention。But, the present invention can embody in many different forms, and is not intended to be limited to embodiment set forth herein；But these embodiments are provided so that the disclosure will be thorough and complete, and fully transfer the scope of the present invention to those skilled in the art。Such as, one or more aspects of the present invention can be used in other embodiments, or even in other type of structure and/or method。In the accompanying drawings, same reference numerals instruction similar elements。

Figure 1A and Figure 1B respectively illustrates side view and the decomposition view of pruning tool 100 according to the embodiment of the present invention。As illustrated in Figure 1A and Figure 1B, pruning tool 100 is for pruning hedge clipper。In other embodiments various, pruning tool 100 can be prune shears, shrub and hedge trimmer etc.。Pruning tool 100 can be used for pollard or sprig。

Pruning tool 100 includes the shearing assembly 102 with at least one movable part。As it can be seen, shear the blade apparatus that assembly 102 includes having at least one movable part, this at least one movable part is presented as removable blade 104, and this removable blade is pivotally connected to fixing blade 106 by pivoting device 108。Removable blade 104 can be pivoted motion relative to fixing blade 106 around pivotal point 110 during shear action。As shown in Figure 1B, pivoting device 108 includes pivot pin 112, nut 114, spring 116 and spring holder (springholder) 118。During assembly, pivot pin 112 through spring holder 118 and is arranged on the respective openings 120 on fixing blade 106 and removable blade 104。Further, nut 114 tightens on pivot pin 112 to form pivoting device 108。In pivoting device 108, spring 116 is placed on spring holder 118, and contacts with fixing blade 106 and removable blade 104。Removable blade 104 can be biased towards open position by spring 116 and insert 122。Spring 116 is presented as recoil check spring。But, spring 116 can be any other type of elastic component known in the art, for instance helical spring, volute spring, rubber component etc.。Alternatively, removable blade 104 can be connected to fixing blade 106 by this way, i.e. which makes to carry out linear movement relative to fixing blade 106 during shear action。

Fixing blade 106 and removable blade 104 can include shear blade 107 and 105 respectively。Shear blade 105 and 107 can be sharp keen and/or form zigzag to shear branch。Shear blade 105 and 107 is formed shears jaw C。Shear jaw C and may be included in the region formed between shear blade 107 and the shear blade 105 of removable blade 104 of fixing blade 106。Further, fixing blade 106 may be designed to guide branch towards shear blade 105,107。Additionally, the far-end 124 of fixing blade 106 is flexible。The curved design of fixing blade 106 can avoid the hands of user to slide towards shear blade 105 and 107。In other embodiments various, removable blade 104 can include two or more removable blades。As illustrated in Figure 1A and Figure 1B, the various details shearing assembly 102 are merely exemplary in itself, and within the scope of the present invention, shearing assembly 102 can be other design any。

Further, pruning tool 100 can include being coupled to the mid portion 103 shearing assembly 102。Mid portion 103 may be coupled to the far-end 124 of fixing blade 106。In embodiments, mid portion 103 can be formed on fixing blade 106。According to the embodiment of the present invention, handle 126 can be set to be adjacent to mid portion 103。Handle 126 includes the grip 128 being configured to grasp for user during operation pruning tool 100。In embodiments, handle 126 can be integrally formed with mid portion 103, and extends between the first end 130 and the second end 132, and its length is L。In other embodiments various, mid portion 103 can be formed separately with handle 126, and is coupled to handle 126 by securing member, the mechanism that is clasped, binding agent, concave-convex connector mechanism etc.。

In embodiments, the length L of handle 126 can in the scope of about 10cm to 30cm。In another embodiment, the length L of handle 126 is approximately 15cm。Further, handle 126 can include passage 136 (illustrated along the AA ' profile intercepted in Figure 1A), and passage 136 has the first opening 138 near the first end 130 and the second opening 140 near the second end 132。In embodiments, the second opening 140 of passage 136 can have horn-like shape。

According to embodiment, handle 126 can include being adjacent to the wide portion 142 shearing assembly 102。The width W1 in wide portion 142 is more than the width W2 of grip 128。The words bigger for width W1 in wide portion 142 help avoid the hands of user and slide towards shearing assembly 102。Therefore, this structure can be avoided user is caused any harm。

As shown in Figure 1B, handle 126 includes cap 127, and cap is detachably connected to the first end 130 of handle 126, and is adjacent to mid portion 103。Cap 127 can pass through to be clasped mechanism or securing member or binding agent etc. are connected to handle 126。In other embodiments, cap 127 can be integrally formed with handle 126。Cap 127 includes the female 144 being configured to receive the far-end 124 of fixing blade 106。Cap 127, the fixing far-end 124 of blade 106 and the first end 130 of handle 126 include the opening 146,148 and 150 of one group of alignment respectively。The far-end 124 of fixing blade 106 receives in female 144, in order to the opening 150 of the fixing opening 146 of blade 106 and the opening 148 of cap 127 and the first end 130 of being arranged on handle 126 is directed at。Pin 152 may pass through the opening 146,148 and 150 of alignment, and is kept fixing blade 106 is fixedly secured to handle 126 by corresponding retaining pin 154。

According to the embodiment of the present invention, shear jaw C to may be positioned to offset offset distance D relative to the longitudinal axis XX ' of handle 126。Offset distance D can based on the shape of fixing blade 106 and/or mid portion 103 and design。In embodiments, offset distance D can in the scope of about 2cm to 8cm。

Pruning tool 100 farther includes the driving cable 156 with the first end 158 and the second end 160。The first end 158 driving cable 156 is attached to removable blade 104 at junction point 162 place。The second end 160 driving cable 156 is received by the passage 136 that is arranged in handle 126。Further, the horn-like shape of the second opening 140 of passage 136 can allow to pull the second end 160 driving cable 156 in different directions。Alternatively, the second end 160 of cable 156 is driven can be freely suspended at handle 126 side。

Cable 156 is driven to may pass through transmission system 164。As shown in Figure 1B, transmission system 164 can be pulley gear 166。Pulley gear 166 includes the first pulley 168 and the second pulley 170。First pulley 168 is positioned adjacent to handle 126, and the second pulley 170 is positioned adjacent to junction point 162。First pulley 168 is placed in the first end 130 of handle 126, and is pivotably supported by bolt 172 and nut 174。Bolt 172 can receive in the opening 176 and the first pulley opening 178 at the first end 130 place of handle 126 to be pivotably supported the first pulley 168。Second pulley 170 can be pivotally supported at removable blade 104 by bolt 180 and nut 182。Bolt 180 can receive the opening 184 on removable blade 104 and in the second pulley opening 186 to be pivotably supported the second pulley 170。

First pulley 168 and the second pulley 170 include multiple groove 171。Cable 156 is driven to be wound around around multiple grooves 171, thus forming the ring of multiple driving cable 156 between the first pulley 168 and the second pulley 170。But, in other embodiments, transmission system 164 can include lever apparatus, geared system, chain drive, pneumatic means, hydraulic means or its combination。

Transmission system 164 can be used for increasing the pulling force that user applies。Junction point 162 place on removable blade 104 applies pulling force to carry out shear action。According to embodiment, due to offset distance D, the distance between pivotal point 110 and junction point 162 also increases。Therefore, the moment of the pulling force on removable blade 104 can increase。

According to aspects of the present invention, the length L of handle 126 is shorter, and this can help to shearing branch in narrow space, and the pruning tool 100 in narrow space with expansion link will be difficult to shear action。Passage 136 can, for driving cable 156 to provide support and protection, allow to drive cable 156 to be connected to removable blade 104 simultaneously。Owing to driving cable 156 to be walked around by passage 136, therefore drive cable 156 can to shift and be wrapped on branch。

Handle 126 farther includes hollow bulb 188。The hollow bulb 188 of handle 126 includes coupling part 190。Coupling part 190 can be used for bar 200 (Fig. 2 is illustrated) is connected to handle 126。

Fig. 2 illustrates the perspective view of the pruning tool 100 with bar 200 according to another implementation of the invention。The handle 126 of pruning tool 100 is detachably connectable to bar 200。Second end 132 of handle 126 and bar 200 can be detachably connected from each other by convex (male) and spill (female) coupler (not shown), then pass through locking mechanism 202 and relative to each other lock。Locking mechanism 202 includes the knob 204 being connectable to helical member (not shown)。Knob 204 can be set to the one end close to bar 200。Helical member can be detachably coupled to the depression in the coupling part 190 (shown in Figure 1B) of handle 126。Safety buckle 134 is further configured to prevent knob 204 from occurring any accident to loosen and/or anti-stopping bar 200 undesirably falls off handle 126。Further, bar 200 can be expansion link and include the first pipe 200A, the second pipe 200B and coupler 206, and this coupler is configured to removably the first pipe 200A is connected to the second pipe 200B。In locked configuration, the first pipe 200A and the second pipe 200B can telescopically relative to each other be locked by coupler 206。In non-locking structure, coupler 206 can allow the first pipe 200A and the second pipe 200B to be relative to each other telescopically slidable。First pipe 200A and the second pipe 200B is shown as generally cylindrical。But, within the scope of the invention, the first pipe 200A and the second pipe 200B can have other section any, for instance ellipse, polygon etc.。Bar 200 can make it possible to prune the branch from the various height in ground。

Further, pruning tool 100 includes pulling component 300。Component 300 is pulled to include retained part 302 and elongated portion 304。The elongated portion 304 pulling component 300 is slidably mounted on bar 200。Pull component 300 can include the secondary clips 306 being positioned on elongated portion 304。Secondary clips 306 can be easy to user and clamps and pass through to pull component 300 to carry out pulling action。The second end 160 driving cable 156 is connected to pull component 300。Driving cable 156 can around pulling component 300 to wind。Component 300 is pulled to be configured to make driving cable 156 move transmit pulling force and activate removable blade 104。In other embodiments various, component 300 is pulled to may also be arranged to contiguous bar 200, and without any sliding support on bar 200。

The component 300 that wherein pulls that Fig. 3 A illustrates according to further embodiment of the present invention is in the perspective view of the non-pruning tool 100 coupling and constructing and do not have bar 200。Component 300 is pulled to include at least one fixation clamp 308。The second end 160 driving cable 156 can be fixed on and pull on component 300 by this at least one fixation clamp 308。Second end 132 of handle 126 includes the first pontes 350。The elongated portion 304 pulling component 300 includes the second coupling part 351。The first pontes 350 of handle 126 is configured to removably couple with the second coupling part 351 pulling component 300。In embodiments, the first pontes 350 includes chamber 352 so that the diameter in chamber 352 is more than the diameter of the second coupling part 351。The chamber 352 of the first pontes 350 is configured at least in part and removably receives the second coupling part 351 pulling component 300。Chamber 352 may be configured to deposit and pulls component 300。In embodiments, safety buckle 134 may be configured to keep the second coupling part 351 with chamber 352。In another embodiment, the chamber 352 of the first pontes 350 can include convex-shaped connector。In further embodiment, the first pontes 350 includes the convex-shaped connector that can be formed on mid portion 103。Convex-shaped connector may be configured to removably couple with the Internal periphery of the second coupling part 351 of elongated portion 304, and this Internal periphery will serve as Female connector。In further embodiment, the diameter of the second coupling part 351 is smaller than the diameter of the first pontes 350。The Internal periphery of the first pontes 350 may be configured to removably couple with the outline of the second coupling part 351。

The component 300 that pulls that Fig. 3 B illustrates in wherein Fig. 3 A is in the side view of the pruning tool 100 coupling structure。Component 300 is pulled removably to couple with handle 126。The chamber 352 of the first pontes 350 of handle 126 receives the second coupling part 351 pulling component 300 at least in part。In embodiments, the safety buckle 134 being positioned at the first pontes 350 place of handle 126 may be configured to support the second coupling part 351 pulling component 300。Further, when pull the outline of the second coupling part 351 of component 300 leave in handle 126 the first pontes 350 chamber 352 in time, safety buckle 134 can be at open position。When pull the outline of the second coupling part 351 of component 300 leave in handle 126 the first pontes 350 chamber 352 in time, safety buckle 134 can be placed in make position and make it contact with the second coupling part 351。Safety buckle 134 can frictionally pull on component 300 and lock with handle 126, and contributes to pulling on component 300 and leave in handle 126。In another embodiment, perform to pull component 300 and the locking of handle 126 also by the knob (not shown) being positioned on the second coupling part 351 pulling component 300。Knob can be detachably coupled to the depression on the first pontes 350 of handle 126。In further embodiment, pull component 300 can have the clip-like element that may be configured to couple with bar 200 or handle 126。

When using the pruning tool 100 without bar 200, pruning tool 100 provides for depositing the device pulling component 300。Pruning tool 100 is slidably mounted on bar 200 provides utilizes bar 200 to deposit the device pulling component 300 also by pulling on component 300。

Fig. 4 A and Fig. 4 B illustrates D-shaped according to the embodiment of the present invention and pulls the example view of component 300。Component 300 is pulled to include having the retained part 302 of D-shape configuration。The D-shape configuration pulling the retained part 302 of component 300 can provide good clamping during shearing manipulation and increase the pulling force pulling driving cable 156。Pulling component 300 to include the coiler device 400 for driving cable 156, coiler device can deposit extra driving cable 156 during shearing manipulation。Coiler device 400 can help to be wound on driving cable 156 pull on component 300, and this coiler device includes the first sweep the 402, second sweep 404 and the 3rd sweep 406。The radius of the first sweep 402 can be relatively big, and this is easy to clamping while user is held in secondary clips 306 place and pulls component 300。Second sweep 404 may be configured to be easy to the driving cable 156 that winding is extra。3rd sweep 406 may be configured to be easy to drive cable 156 around with the first volume of the first element 416 pulling component 300 integrally formed around。First element 416 includes the first contact surface 408, second and contacts contact surface 412, surface the 410, the 3rd and unwinding members 310。Retained part 302 includes the 4th contact surface 414。The second end 160 driving cable 156 contacts surface 408 with first and contacts, and then winds to contact the second contact surface 410 around the first element 416。Driving cable 156 is fixed by least one fixation clamp 308, and this can be easy to the length of stationary rope。Further, it is wound around the first element 416 and retained part 302。Contact surface 412 the 3rd and contact winding driving cable 156 between surface 414 with the 4th。As shown in Figure 4 B, it is shown that drive cable 156 around pulling component 300 winding。

Component 300 is pulled to may also include expanding unit 401。Expanding unit 401 includes spring-actuated unwinding members 310。The unwinding members 310 with jag 312 is configured to from pulling the winding removing driving cable 156 component 300。The unwinding members 310 being in its make position utilizes the jag 312 of unwinding members 310 to be supported on the first element 416 by driving cable 156。Unwinding members 310 is by spring-actuated, when unwinding members 310 overcomes elastic force to slide in direction a, drives cable 156 to be launched。

Fig. 5 illustrates T-shaped according to another implementation of the invention and pulls the perspective view of component 300。Component 300 is pulled to include the retained part 302 with T-shaped structure。The component 300 that pulls with T-shaped structure also includes the coiler device 400 ' for driving cable 156。Coiler device 400 ' can include the first winding element 420 and the second winding element 422。Cable 156 is driven to wind around the first winding element 420 and the second winding element 422。First winding element 420 and the second winding element 422 have jag 424, and jag may be configured to prevent from driving cable 156 to slide。The Internal periphery pulling the coupling 426 of component 300 can be slidably mounted on bar 200。

As Fig. 4 A, Fig. 4 B and Fig. 5 illustrates, the various details of coiler device 400,400 ' and expanding unit 401 are merely exemplary in itself, and within the scope of the invention, around pulling component 300 to wind and launching to drive cable 156 can have other design any。D-shaped or T-shaped pull component 300 can improve clamping while avoiding sliding, this power being used for shearing branch increase applied。Therefore, the human engineering of pruning tool 100 can be improved。During shear action, coiler device 400,400 ' can ensure that the extra driving cable 156 of winding and avoids being wound around。

Fig. 6 A and Fig. 6 B respectively illustrates front view and the lateral side view of pruning tool 100 according to the embodiment of the present invention, wherein regulates device 500 and is in the structure illustrating the first Breadth Maximum M1 shearing jaw C。As shown in Figure 6A, the cam member 502 that device 500 includes may be configured to regulate the Breadth Maximum shearing jaw C is regulated。Cam member 502 can be positioned on fixing blade 106。As shown in Figure 6A, cam member 502 is in primary importance 504。The cam member 502 primary importance 504 on fixing blade 106 can provide the first Breadth Maximum M1 shearing jaw C。Cam member 502 may be configured to the motion of restriction removable blade 104。As shown in Figure 6B, the discoid pieces (dial) 506 that device 500 also includes being rotationally attached to cam member 502 is regulated。Discoid pieces 506 is positioned at the opposite side of fixing blade 106 relative to cam member 502。Discoid pieces 506 can include the protuberance 508 for user rotating cam member 502。

The device 500 that regulates that Fig. 7 A and Fig. 7 B respectively illustrates in wherein Fig. 6 A and Fig. 6 B is in the front view of pruning tool 100 and the lateral side view of the structure illustrating the second Breadth Maximum M2 shearing jaw C。As shown in Figure 6 A and 6 B, cam member 502 is positioned at the second position 510。The cam member 502 second position 510 on fixing blade 106 can provide the second Breadth Maximum M2 shearing jaw C。In the second position 510, cam member 502 may be configured to the motion of restriction removable blade 104, thus providing the second Breadth Maximum M2 shearing jaw C。The primary importance 504 of cam member 502 and the second position 510 provide the first Breadth Maximum M1 and the second Breadth Maximum M2 that shear jaw C。The length of the second Breadth Maximum M2 length less than the first Breadth Maximum M1。The Breadth Maximum shearing jaw C can change between the first Breadth Maximum M1 and the second Breadth Maximum M2 based on the position of cam member 502。Such as, cam member 502 can be positioned between primary importance 504 and the second position 510, and shearing jaw C can change, according to the requirement of user, the width shearing jaw C。

In other embodiments various, it is contemplated that adjustment device 500 has the component carrying out linear movement but not cam member 502 is to limit the motion of removable blade 104。Such as, this component can be positioned on line linearity motion of going forward side by side on fixing blade 106 to limit the first Breadth Maximum M1 and the second Breadth Maximum M2 shearing jaw C。

Fig. 8 A and Fig. 8 B illustrates the side view of pruning tool 100 according to another implementation of the invention, wherein regulates device 500 ' and illustrates the various Breadth Maximums shearing jaw。Regulating device 500 ' and can include brake 512, this brake is arranged on the Breadth Maximum driving on cable 156 and being configured to restriction shearing jaw C。Brake 512 is positioned at by user and drives on cable 156 to change the Breadth Maximum shearing jaw C。Pull driving cable 156, and make brake 512 slide to contact with handle 126 towards handle 126。As shown in Figure 8 A, user pulls driving cable 156, and makes brake 512 slide towards handle 126, in order to the region of the Breadth Maximum shearing jaw C reduces, and this results in the 3rd Breadth Maximum M3 shearing jaw C。Further, as shown in Figure 8 B, user further pulls on driving cable 156, and makes brake 512 slide towards handle 126, in order to the region of the Breadth Maximum shearing jaw C reduces further, this results in the 4th Breadth Maximum M3 shearing jaw C。The 3rd Breadth Maximum M3 and the four Breadth Maximum M4 shearing jaw C is illustrative of in itself, and Breadth Maximum can change between the 3rd Breadth Maximum M3 and the four Breadth Maximum M4, maybe can by making brake 512 slide into relevant position and be in any position on driving cable 156。

The various details of the adjustment device 500,500 ' shown in Fig. 6 A, Fig. 6 B, Fig. 7 A, Fig. 7 B, Fig. 8 A and Fig. 8 B are merely exemplary in itself, within the scope of the invention, regulate device 500 and can have other design any。The adjustment device 500,500 ' shearing jaw C can optimize the scope pulling driving cable 156。When to shear twig, regulate device 500,500 ' and the scope shearing jaw C can be limited。Therefore, when to shear twig, removable blade 104 can be moved shorter distance。Further, in order to shear twig, also need to reduce the scope pulling driving cable 160。Therefore, the human engineering of pruning tool 100 can be improved。

In the accompanying drawings and the description, the preferred embodiment of the present invention and example are had been disclosed, although employing particular term, but these terms only use with its general and illustrative meaning, are not the scope of the present invention set forth to be limited in following claims。

Pruning tool

List of parts:

100 pruning tools

102 shear assembly

103 mid portions

104 removable blades

The shear blade of 105 removable blades

106 fixing blades

The shear blade of 107 fixing blades

C shears jaw

108 pivoting devices

110 pivotal points

112 pivot pins

114 nuts

116 springs

118 spring holders

Opening on 120 fixing blades

122 inserts

124 far-ends

126 handles

127 caps

The grip of 128 handles

First end of 130 handles

Second end of 132 handles

134 safety buckles

The length of L handle

136 passages

First opening of 138 passages

Second opening of 140 passages

142 width portions

The width in W1 width portion

The width of W2 grip

The female of 144 caps

The opening of 146 fixing blades

The opening of 148 caps

The opening of the first end of 150 handles

152 pins

154 retaining pins

The longitudinal axis of XX ' handle

D offset distance

156 drive cable

158 the first ends driving cable

160 the second ends driving cable

162 junction points

164 transmission systems

166 pulley gears

168 first pulleys

170 second pulleys

171 grooves

172 bolts

174 nuts

176 openings

178 first pulley openings

180 bolts

182 nuts

Opening on 184 removable blades

186 second pulley openings

188 hollow bulbs

190 coupling parts

200 bars

First pipe of 200A expansion link

Second pipe of 200B expansion link

202 locking mechanisms

204 knobs

206 coupler

300 pull component

302 retained parts

304 elongated portions

306 secondary clips

308 fixation clamps

310 unwinding members

The jag of 312 unwinding members

350 the first pontes

351 second coupling parts

352 chambeies

400 coiler devices

400 ' coiler devices

401 expanding units

402 first sweeps

404 second sweeps

406 the 3rd sweeps

408 first contact surfaces

410 second contact surfaces

412 the 3rd contact surfaces

414 the 4th contact surfaces

416 first elements

The glide direction of A unwinding members

420 first winding elements

422 second winding elements

The jag of 424 winding elements

426 couplings

500 regulate device

500 ' regulate device

502 cam members

The primary importance of 504 cam members

M1 shears the first Breadth Maximum of jaw

506 discoid pieces

The protuberance of 508 discoid pieces

The second position of 510 cam members

M2 shears the second Breadth Maximum of jaw

M3 shears the 3rd Breadth Maximum of jaw

M4 shears the 4th Breadth Maximum of jaw

512 brakes

Claims

1. a pruning tool (100), including:

Shear assembly (102), there is the blade apparatus including at least one movable part；

Driving cable (156), be attached at least one movable part described at the first end (158) place of described driving cable, described driving cable is configured to activate at least one movable part described；

Mid portion (103), is coupled to described shearing assembly,

It is characterized in that

Handle (126) is arranged adjacent to described mid portion, and wherein, described handle construction becomes for user grasping during operating described pruning tool；

Wherein, the length of described handle is in the scope of about 10cm to 30cm；And

Forming passage (136) in described handle, wherein, second end (160) of described driving cable is received by described passage。

2. pruning tool according to claim 1, wherein, described mid portion is integrally formed with described handle。

3. pruning tool according to claim 1, wherein, described shearing assembly includes fixing blade (106) and at least one movable part described, at least one movable part wherein said is removable blade (104), and wherein said removable blade is pivotally connected to described fixing blade, wherein said mid portion is formed on described fixing blade。

4. the pruning tool according to claim 1 or 3, wherein, described fixing blade and described removable blade form the shearing jaw (C) of longitudinal axis relative to described handle (XX ') offset orientation。

5. the pruning tool according to Claims 1-4, wherein, described handle includes the wide portion (142) being configured to the grip (128) for user grasping and contiguous described shearing assembly, and the width (W1) in wherein said width portion is more than the width (W2) of described grip。

6. the pruning tool according to claim 1 and 3, wherein, described fixing blade and described removable blade form described shearing jaw, and wherein regulate device (500,500 ') and be configured to regulate the Breadth Maximum of described shearing jaw。

7. the pruning tool according to claim 3 and 6, wherein, described adjustment device includes the cam member (502) being configured to limit the pivoting action of described removable blade。

8. pruning tool according to claim 6, wherein, described adjustment device includes the brake (512) being configured to limit the pivoting action of described removable blade。

9. the pruning tool according to claim 1 to 8, what described pruning tool farther included to be attached to the second end of described driving cable pulls component (300)。

10. the pruning tool according to claim 1 to 8, wherein, described handle farther includes the first pontes (350), described pulling component to include the second coupling part (351), described second coupling part is constructed to be permeable to releasably be coupled to the described the first pontes of described handle。

11. pruning tool according to claim 10, wherein, the described the first pontes of described handle includes chamber (352), wherein said described second coupling part pulling component is elongated portion (304), and described chamber is configured at least in part and pulls the described elongated portion of component described in reception removedly。

12. pruning tool according to claim 11, described pruning tool farther includes to be attached to the bar (200) of described handle。

13. pull component can be slidably mounted on described bar described according to the pruning tool described in claim 9 and 12, wherein,。

14. the pruning tool according to claim 9 to 13, wherein, described in pull component to include having the retained part (302) of T-shape。

15. the pruning tool according to claim 9 to 13, wherein, described in pull component to include having the retained part (302) of D-shape。

16. the pruning tool according to claim 9 to 15, wherein, described in pull component include drive cable coiler device (400,400 ')。

17. pruning tool according to claim 16, wherein, described in pull component include drive cable expanding unit (401)。

18. according to the pruning tool described in aforementioned any one of claim, wherein, the length of described handle is about 15cm。

19. a pruning tool (100), including:

Mid portion (103), is coupled to described shearing assembly,

It is characterized in that

Described shearing is always shaped as cutting nipper mouth (C), wherein, regulates device (500,500 ') and is configured to regulate the Breadth Maximum of described shearing jaw。

20. pruning tool according to claim 19, wherein, described adjustment device includes the cam member (502) being configured to the motion of restriction at least one movable part described。

21. pruning tool according to claim 19, wherein, described adjustment device includes the brake (512) being configured to the motion of restriction at least one movable part described。

22. a pruning tool (100), including:

Mid portion (103), is coupled to described shearing assembly,

It is characterized in that

The first pontes (350) is formed as contiguous described mid portion,

Component (300) is pulled to be attached to second end (160) of described driving cable, wherein said pulling component to include the second coupling part (351), described second coupling part is constructed to be permeable to releasably be coupled to described the first pontes。

23. pruning tool according to claim 22, wherein, described the first pontes is convex-shaped connector, and wherein said described second adapter pulling component is Female connector, and described convex-shaped connector couples with described Female connector removedly。

24. pruning tool according to claim 24, wherein, described first attachment structure includes chamber (352), wherein said second coupling part is elongated portion (304), and described chamber is configured at least in part and pulls the described elongated portion of component described in reception removedly。

25. the pruning tool according to claim 22 to 24, wherein, described in pull component include drive cable coiler device (400,400 ')。

26. pruning tool according to claim 25, wherein, described in pull component include drive cable expanding unit (401)。