CN103004485B - Pruning shears and garden tool - Google Patents
Pruning shears and garden tool Download PDFInfo
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- CN103004485B CN103004485B CN201110281987.5A CN201110281987A CN103004485B CN 103004485 B CN103004485 B CN 103004485B CN 201110281987 A CN201110281987 A CN 201110281987A CN 103004485 B CN103004485 B CN 103004485B
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- transmission system
- hedge trimmer
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Abstract
The invention relates to a pair of pruning shears which comprise a motor with a motor axis, a switching mechanism for controlling the motor, a casing for accommodating the motor, a handle arranged on the casing for holding, a cutter assembly which is driven by the motor to extend along the longitudinal direction and is dislocated in a reciprocating mode in the longitudinal direction, and a transmission system for transmitting rotating power output by the motor to the cutter assembly. The pruning shears are characterized in that the motor is fixed relative to the casing, the cutter assembly is connected with at least a part of the transmission system, the pruning shears also comprise a rotating mechanism, the rotating mechanism enables the cutter assembly and at least a part of the transmission system to rotate relative to the casing around a rotating axis parallel to the motor axis, the rotating cutter assembly realizes a cutting function in different positions, and the application scope of the pruning shears is widened.
Description
Technical field
The present invention relates to a kind of shrub and hedge trimmer, the shrub and hedge trimmer that especially a kind of tool section assembly can rotate relative to casing.The invention still further relates to the garden tool that a kind of working head can rotate relatively.
Background technology
Shrub and hedge trimmer in garden instrument are used for pruning hedge, branch makes it form certain profile.In common use, shrub and hedge trimmer need to carry out cutting operation in horizontal plane and vertical plane.
As Chinese patent CN2506064Y patent discloses a kind of traditional shrub and hedge trimmer.This shrub and hedge trimmer back handle is positioned at vertical plane, and front hand grip place plane is orthogonal with back handle place plane, and the working face of tool section assembly is positioned at horizontal plane.Operator grips front hand grip and back handle when carrying out operation to hedge and branch, and cutting horizontal face is easier to.But during to cutting vertical plane, whole shrub and hedge trimmer need turn over to turn 90 degrees and carry out operation, operator only can side direction can not lift in vertical plane lift, and operator exerts a force inconvenience.
Therefore, for problems of the prior art, need to design a kind of shrub and hedge trimmer solving above-mentioned weak point.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of shrub and hedge trimmer, the working face of these shrub and hedge trimmer is easily transformed into vertical plane from horizontal plane.
The technical solution adopted for the present invention to solve the technical problems is: a kind of shrub and hedge trimmer, comprise the motor with motor axis, control the switching mechanism of motor, hold the casing of motor, be located on casing for the handle gripped, by motor drive along longitudinally extend and at the tool section assembly of the reciprocal changing of the relative positions work of longitudinally and the rotary power that motor exports is passed to the transmission system of tool section assembly, described motor is fixed relative to casing, tool section assembly is connected with at least part of transmission system, described shrub and hedge trimmer also comprise rotating mechanism, this rotating mechanism makes tool section assembly and at least part of transmission system rotate around the rotation being parallel to motor axis relative to casing.
Preferably, the two ends of described cabinet supports rotating mechanism.
Preferably, described casing is provided with the arc track coordinated with rotating mechanism, and transmission system is provided with the output shaft driving tool section assembly, and the central axis of arc track is in the axis of output shaft.
Preferably, the rotation of described rotating mechanism overlaps with motor axis.
Preferably, described rotating mechanism comprise accommodate at least part of transmission system casing, be located at casing or the casing locking button on one of them, be located at casing or the casing rotating disk on another, locking button coordinate with rotating disk or be separated thus casing and casing relative to fixing with can relatively rotate.
Preferably, described locking button coordinates along rotation radial direction or axis with rotating disk.
Preferably, described rotating disk circumference is distributed with some locating holes or breach, and locking button is provided with lock pin, and lock pin can coordinate with one of some locating holes or breach and depart from.
Preferably, the locating hole on described rotating disk or the quantity of breach are at least 3, and wherein the central angle of two locating holes or the corresponding rotating disk centre of gyration of breach is 90 degree, also have the central angle non-90 degree integral multiple of two locating holes or the corresponding rotating disk centre of gyration of breach.
Preferably, described locking button and rotating disk are provided with backlash compensation structure and prevent locking button and rotating disk circumference from rocking.
Preferably, described shrub and hedge trimmer also comprise the ball shaft coupling be located between transmission system and motor.
Preferably, described ball shaft coupling comprises and to connect with motor drive shaft and the floating ground rolling member that protrudes motor drive shaft surface and the sleeve with the draw-in groove of accommodating rolling member and the power transmission shaft extended from sleeve one end, and described draw-in groove is axially extended arc groove.
Preferably, the center of circle of described circular arc is positioned on sleeve centerline.
Preferably, described transmission system comprises transmission mechanism and reducing gear, and transmission mechanism and casing keep relative fixing, and tool section assembly rotates relative to casing together with reducing gear.
This technical scheme at least has following beneficial effect: the first, rotating mechanism makes tool section assembly and at least part of transmission system rotate around the axle being parallel to motor axis relative to casing or is that axle rotates with motor axis, tool section assembly is easily at horizontal plane and vertical plane internal cutting hedgerow, and convenient operation person uses; The second, motor is fixed relative to casing, the lighter in weight of rotation, facilitates working face to change; Three, tool section assembly and at least part of transmission system rotate for the conversion that handle pivotable realizes working face, and the cabling of handle inner cable can be prevented to be intertwined or to loosen owing to pullling.
The present invention solves another technical scheme that its technical problem adopts:
A kind of shrub and hedge trimmer, comprise fore shell; Support the back cover of fore shell pivotable, described back cover supports the rear and front end of fore shell; Be located at the motor in back cover; Control the switching mechanism of motor; Tool section assembly and motor power is passed to the transmission system of tool section assembly, described transmission system and tool section assembly are integrally installed on fore shell.
The present invention solves another technical scheme that its technical problem adopts: a kind of shrub and hedge trimmer, comprise fore shell; Support the back cover of fore shell pivotable, described back cover supports the rear and front end of fore shell; Be located at the motor in back cover; Control the switching mechanism of motor; Tool section assembly and motor power is passed to the transmission system of tool section assembly, described transmission system is divided into transmission mechanism and reducing gear, and transmission mechanism is positioned at back cover, and reducing gear and tool section assembly are integrally installed on fore shell.
The present invention also provides a kind of garden tool facilitating map function position, its technical scheme is: a kind of garden tool, comprise casing, the motor extending motor drive shaft be placed in casing, the transmission system coordinated with motor drive shaft, working head by transmission system drives, described transmission system comprises ball shaft coupling, described ball shaft coupling coordinates with motor drive shaft, and transmission system rotates around fixed axis relative to casing with working head one.
Preferably, described ball shaft coupling comprises and to connect with motor drive shaft and the floating ground rolling member that protrudes motor drive shaft surface and the sleeve with the draw-in groove of accommodating rolling member and the power transmission shaft extended from sleeve one end, and described draw-in groove is axially extended arc groove.
Preferably, the angle that described motor drive shaft axis and fixed axis are formed is 0 degree to 30 degree.
Accompanying drawing explanation
Be described in further detail below in conjunction with accompanying drawing and the preferred embodiments of the present invention.
Fig. 1 is the stereogram of the shrub and hedge trimmer of the specific embodiment of the invention.
Fig. 2 is the three-dimensional exploded view of the shrub and hedge trimmer of the specific embodiment of the invention.
Fig. 3 is the three-dimensional exploded view of a part for the shrub and hedge trimmer of the specific embodiment of the invention.
Fig. 4 is the three-dimensional exploded view of another part of the shrub and hedge trimmer of the specific embodiment of the invention.
Fig. 5 is the three-dimensional exploded view of another angle of the shrub and hedge trimmer of the specific embodiment of the invention.
Fig. 6 is the cutaway view of shrub and hedge trimmer along A-A line in Fig. 1 of the specific embodiment of the invention.
Fig. 7 is the schematic diagram that the locking button of the shrub and hedge trimmer of the specific embodiment of the invention coordinates with rotating disk.
Fig. 8 is another embodiment schematic diagram that the locking button of the shrub and hedge trimmer of the specific embodiment of the invention coordinates with rotating disk.
Fig. 9 is the schematic diagram of the locking button of the shrub and hedge trimmer of the specific embodiment of the invention.
Figure 10 be the specific embodiment of the invention shrub and hedge trimmer backlash compensation structure coordinate schematic diagram.
Figure 11 be the specific embodiment of the invention shrub and hedge trimmer backlash compensation structure coordinate another schematic diagram.
Figure 12 be the specific embodiment of the invention shrub and hedge trimmer backlash compensation structure coordinate the 3rd schematic diagram.
Figure 13 is the ball shaft coupling of the specific embodiment of the invention and the cooperation schematic diagram of motor drive shaft.
Figure 14 is the profile of the specific embodiment of the invention along B-B line in Figure 13.
Wherein, related elements reference numeral is as follows:
100 shrub and hedge trimmer 41 front hand grip 631 fitting portions
1 motor 42 back handle 632 protuberance
11 motor drive shaft 43 crawl section 633 shoulders
111 groove 5 tool section assembly 634 bearings
2 switching mechanism 6 transmission system 635 springs
21 first trigger member 61 transmission mechanism 636 mounting grooves
22 second trigger member 611 ball shaft coupling 7 rotating mechanisms
23 connecting rod 612 power transmission shaft 71 locking buttons
3 casing 613 rolling member 711 lock pins
31 fan 614 draw-in groove 712 press handles
32 air inlet 615 sleeve 713 return units
33 air outlet 62 reducing gear 714 adjutages
34 suspention beam 621 train of reduction gears 715 engaging tooths
341 vault 622 tooth rest 72 rotating disks
342 arm 623 gear wheel 721 locating holes
343 pivot block 624 pinion 73 elastic components
35 recess 625 eccentric cam groups
4 handle 63 casings
Embodiment
Fig. 1 to Fig. 6 discloses a kind of shrub and hedge trimmer 100, comprise there is motor axis motor 1, control motor 1 switching mechanism 2, hold motor 1 casing 3, be located on casing 3 for grip handle 4, by motor 1 drive along longitudinally extend and at the tool section assembly 5 of the reciprocal changing of the relative positions work of longitudinally, the transmission system 6 rotation that motor 1 exports being passed to tool section assembly 5, rotating mechanism 7.This rotating mechanism 7 makes tool section assembly 5 and at least part of transmission system 6 rotate around motor axis relative to casing 3, forms axial, the radial direction perpendicular to motor axis, the circumference around motor axis along motor axis.Rotating mechanism 7 makes tool section assembly 5 and at least part of transmission system 6 rotate, and the working face of tool section assembly 5 is changed at horizontal plane and vertical plane easily, meets the demand of the different parts of cutting branch or hedge.
Please refer to Fig. 3, Fig. 5, Fig. 6, motor 1 is the power source of shrub and hedge trimmer 100.In embodiment provided by the invention, motor 1 is a kind of direct current generator preferably.Certainly, motor 1 also can be alternating current generator or oil-burning machine.Motor 1 extends forward a motor drive shaft 11 in order to be connected transferring power with transmission system 6.
Please refer to Fig. 1 to Fig. 6, casing 3 is in order to provide the general frame of shrub and hedge trimmer 100 and to contain the parts of shrub and hedge trimmer 100.This casing 3 is made up of plastic material usually.First, form two and half shells by the mode of injection moulding, then half shell is fastened to and form complete casing 3 together.Casing 3 holds motor 1.Motor drive shaft 11 is connected with fan 31.Air inlet 32 is provided with at the casing 3 corresponding with fan 31.Casing 3 along the motor drive shaft 11 bearing of trend other end contrary with fan 31 is provided with air outlet 33.Air enters in casing 3 from air inlet 32, and under the effect of fan 31, air-flow is discharged from air outlet 33, thus plays the effect of cooling motor 1.
Please refer to Fig. 1 to Fig. 6, handle 4 is located on casing 3 and is gripped for operator.In embodiment provided by the invention, handle 4 is one-body molded with casing 3, and do not need syndeton between handle 4 and casing 3, therefore the entirety of handle 4 and casing 3 has less volume and higher intensity.
Handle 4 is divided into front hand grip 41 and back handle 42.Front hand grip 41, back handle 42 grip shrub and hedge trimmer 100 from relative both direction for operator and work.Back handle 42 is positioned at casing 3 rear end, in the ring-type closed, is fixed with the first trigger member 21 for pressing in back handle 42 inside.It is anterior that front hand grip 41 is positioned at casing 3, and the same ring-type in closing, front hand grip 41 place plane is orthogonal with back handle 42 place plane.The benefit that front hand grip 41, back handle 42 are arranged like this be cutting hedge or branch time, make the front of the longitudinally of shrub and hedge trimmer 100 and operator's health or reverse side parallel, convenient operation.Certainly, front hand grip 41, back handle 42 may not be close-shaped.The second trigger member 22 for pressing is fixed with in front hand grip 41 inside.Be provided with connecting rod 23 between first trigger member 21 and the second trigger member 22 both are linked together.Only have when pressing the first trigger member 21 and the second trigger member 22 simultaneously, could turn on-switch mechanism 2.In addition, front hand grip 41 casing 3 all relative to back handle 42 is motionless, and the cable be therefore connected with the first trigger member 21 and the second trigger member 22 can not rotate because of front hand grip 41 and back handle 42 and be pullled, and then causes being electrically connected between cable losing efficacy.
Please refer to Fig. 1 to Fig. 6, casing 3 is because of the setting of front hand grip 41 and back handle 42, and the profile at two ends is greater than the profile in centre position, forms a crawl section 43 gripped for operator in centre position.This crawl section 43 circumference all can grip, and therefore, when cutting higher than the hedge on operator front or the crown or branch, the mode of gripping can be become from lift and lifting with convenient operator's operation.
Please refer to Fig. 1 to Fig. 3 and Fig. 5 and Fig. 6, casing 3 front portion is provided with the suspention beam 34 extended forward.This suspention beam 34 comprises vault 341 and arm 342, and arm 342 is positioned at the both sides of vault 341 and is connected with vault 341.Arm 342 indent of both sides forms pivot block 343.This pivot block 343 supports the rear and front end of transmission system 6, improves the bias voltage of transmission system 6 pairs of casings 3.Casing 3 is provided with arc track, the center line of arc track and motor axis conllinear.
Please refer to Fig. 1 to Fig. 6 and Fig. 8, rotating mechanism 7 comprise accommodate at least part of transmission system 6 casing 63, be located at casing 3 or the casing 63 locking button 71 on one of them, be located at casing 3 or casing 63 rotating disk 72 on another, the cooperation of locking button 71 and rotating disk 72 or to be separated thus casing 3 is fixing or rotate with casing 63.
As shown in Figure 6 to 8, the pivot center of rotating mechanism 7 overlaps with motor axis.Rotating disk 72 can be a thin slice snapping in casing 63 or casing 3, and can also be and casing 63 or casing 3 Integral design, structure be all fairly simple, repeats no more.
Locking button 71 and rotating disk 72 radial or axially can connect that to realize locking button 71 relative with rotating disk 72 fixing mutually, and the mode connected can for abutting or clamping.
As Fig. 3 and Fig. 5, Figure 6 shows that locking button 71 is located on casing 3, rotating disk 72 is positioned on casing 63, locking button 71 and the axial snap-fit engagement of rotating disk 72.Rotating disk 72 circumference is distributed with axially extended locating hole 721, and locking button 71 end is provided with the lock pin 711 inserted in locating hole 721.Locking button 71 is provided with elastic component 73.In the locked state, elastic component 73 keeps lock pin 711 to snap in state in locating hole 721.Pressing locking button 71, there is deformation in elastic component 73, and lock pin 711 axially departs from locating hole 721, and rotating disk 72 can rotate with casing 63.
In another embodiment, locking button is located on casing, and rotating disk is positioned on casing, and locking button coordinates to abutting with turntable shaft, and this kind of embodiment is not shown.Rotating disk does not arrange locating hole, and locking button is connected to rotating disk axial surface to realize rotating disk and locking button geo-stationary, thus transmission system is fixed relative to casing.
In the third embodiment, locking button is located on casing, and rotating disk is positioned on casing, and locking button and the radial snap-fit engagement of rotating disk, this embodiment is not shown.Rotating disk some locating holes or breach are circumferentially set, locking button radial direction snaps in locating hole or breach and realizes rotating disk and locking button geo-stationary, thus the relative casing of casing is fixed.This structure is for the structure in Fig. 3 and Fig. 5, Fig. 6, and the direction of motion of locking button is transformed to radial direction can be realized, and repeats no more.
In the 4th kind of embodiment, locking button is located on casing, and rotating disk is positioned on casing, and locking button abuts with rotating disk radial direction and coordinates, and this embodiment is not shown.In this kind of embodiment, the circumferencial direction of rotating disk does not arrange locating hole or breach, locking button is directly abutted to the periphery of rotating disk, and friction realizes the geo-stationary of locking button and rotating disk, thus the relative casing of casing is fixed.
As shown in Figure 8 and Figure 9, in the 5th kind of embodiment, locking button 71 is positioned on casing 63, and rotating disk 72 and casing 3 one, the radial clamping rotating disk 72 of locking button 71 coordinates.Rotating disk 72 indent forms some recesses 35.Locking button 71 snaps in recess 35, and casing 3 is relative with casing 63 fixing; Locking button 71 and recess 35 depart from, and casing 3 can rotate relatively with transmission system 6.The locking button 71 of rotating mechanism 7 is embedded in casing 63.The return unit 713 that locking button 71 comprises press handle 712, press handle 712 is resetted, to be driven by press handle 712 and to extend into adjutage 714 in casing 3, be positioned at the engaging tooth 715 of adjutage 714 end.The stressed rear drive adjutage 714 of press handle 712 moves, and engaging tooth 715 is spun off from the recess 35 of casing 3 thus realizes the relative rotation of casing 3 and casing 63.After external force removes, press handle 712 is at the effect Regression of return unit 713, and adjutage 714 moves thereupon and engaging tooth 715 is engaged with breach 35, and casing 3 is relative with casing 63 fixing.
5th kind of embodiment can be obtained the 6th to the 8th kind of embodiment by simple deformation.6th kind: locking button is located on casing, rotating disk is positioned on casing, and locking button and turntable shaft are to snap-fit engagement.7th kind: locking button is located on casing, rotating disk is positioned on casing, and locking button coordinates to abutting with turntable shaft.8th kind: locking button is located on casing, rotating disk is positioned on casing, and locking button abuts with rotating disk radial direction and connects cooperation.Above embodiment easily realizes on the basis of the 5th kind, therefore repeats no more.
Be described above locking button 71 to coordinate with rotating disk 72 and realize locking button 71 and rotating disk 72 realizes relatively-stationary mode, below the corresponding control introducing rotating disk 72 anglec of rotation when casing 3 rotates.
As Fig. 7, rotating disk 72 rotates with casing 63 and has the centre of gyration.Rotating disk 72 circumference is distributed with at least 3 locating holes 721.Locking button 71 is provided with lock pin, and lock pin can coordinate with one of some locating holes and depart from.Wherein the central angle of two relative centres of gyration of locating hole 721 is 90 degree, and wherein the central angle of two relative centres of gyration of locating hole 721 is non-90 degree central angle.Like this, the anglec of rotation that rotating disk 72 turns over is preset, and except meeting 90 degree of primary demands rotated, can meet the demand of other special anglecs of rotation.Locating hole 721 also can be breach.
In aforementioned eight kinds of embodiments, one in some locating holes that the control that all snap-fit engagement realize the anglec of rotation in rotating disk 72 and the relatively-stationary structure of locking button 71 all distributes by locking button and circumference or breach coordinates and realizes, and repeats no more.
In aforementioned eight kinds of embodiments, the control that all abuttings connect the anglec of rotation in the rotating disk 72 of cooperation and the relatively-stationary structure of locking button 71 is more convenient.The anglec of rotation is decided by differential seat angle during twice abutting, and this differential seat angle is continuous print angle.
As shown in Figure 10 to Figure 12, at all rotating disks 72 with the structure of locking button 71 snap-fit engagement, in order to prevent causing rotating disk 72 and locking button 71 to rock upon wear at rotating disk 72 and locking button 71, between locking button 71 and rotating disk 72, be provided with backlash compensation structure.
In the structure of axial snap-fit engagement, locating hole 721 or breach reduce gradually along connecting aperture, direction, and the diameter that locking button 71 inserts the part of locating hole 721 or breach keeps constant or connects diameter increase on direction along deviating from.When rotating disk 72 and locking button 71 wear and tear, the direction that locking button 71 reduces to aperture is drawn close, thus makes up the gap because wearing and tearing produce.Or the aperture of locating hole 721 or breach is constant, part that locking button 71 coordinates with locating hole 721 or breach connects diameter on direction increase along deviating from.
In the mechanism of radial snap-fit engagement, utilize the change of breach or recess diameter to reach the object of backlash compensation equally, the similar with axial clamping, repeats no more.
Backlash compensation structure is all reach by the floating laminating of the conical surface between locking button 71 and rotating disk 72 object preventing locking button 71 and rotating disk 72 circumference from rocking.
Refer to Fig. 4 to Fig. 6, transmission system 6 for by the transmission of power of motor 1 to tool section assembly 5.Transmission system 6 comprises transmission mechanism 61 and reducing gear 62.
Refer to Fig. 6, Figure 13, Figure 14, the power transmission shaft 612 that transmission mechanism 61 comprises a ball shaft coupling 611 and is connected with ball shaft coupling 611.Ball shaft coupling 611 one end connecting motor axle 11, other end connection for transmission axle 612.
Ball shaft coupling 611 comprises rolling member 613, sleeve 615 and is arranged at the draw-in groove 614 of sleeve 615 inwall.The position of the corresponding draw-in groove 614 of motor drive shaft 11 is provided with the groove 111 of partial receipt rolling member 613.Sleeve 615 and power transmission shaft 612 are integrated, and form the axle sleeve of a collecting motor drive shaft 11.The rotary power of motor drive shaft 11 completes transmission by groove 111, rolling member 613, draw-in groove 614 successively.Due to coordinating of this axle sleeve and axle, allow to there is 0 degree of rotation amplitude to 30 degree of scopes between motor drive shaft 11 and power transmission shaft 612, realize two out of line diaxon synchronization, stable drive, noise is little, vibrates little.Preferably, before and after described draw-in groove 614 to extension and indent forms a circular arc.The center of circle of circular arc is positioned on sleeve 615 center line.Rolling member 613 can keep fitting tightly state with draw-in groove 614 all the time.In the embodiment substituted, sleeve 615 and power transmission shaft 612 design for split, and power transmission shaft 612 and sleeve 615 are linked together by key.
Refer to Fig. 4 to Fig. 6, power transmission shaft 612 coordinates with a pair train of reduction gears 621.The tooth rest 622 that train of reduction gears 621 comprises pair of parallel setting and the gear wheel 623, the pinion 624 that are installed on tooth rest.Power transmission shaft 612 engages with pinion 624, and pinion 624 engages the object realizing slowing down with gear wheel 623.Tooth rest 622 end installing gear wheel 623 is provided with eccentric cam group 625.Between the center of the cam 626 namely in eccentric cam group 625 and tooth rest 622 axis, there is spacing.Eccentric cam group 625 coordinates the transmission of power completed further from motor 1 to tool section assembly 5 with tool section assembly 5.Be the linear reciprocating motion of tool section assembly 5 by being installed on gear wheel 623 on tooth rest 622 and eccentric cam group 625 by the convert rotational motion of gear wheel 623.Tooth rest 622 as the output shaft of transmission system perpendicular to the arc track center line of casing.
Refer to Fig. 4 to Fig. 6, casing 63 is for accommodating reducing gear 62 or reducing gear 62 and transmission mechanism 61.Casing 63 comprises the fitting portion 631 between the vault 341 and arm 342 of suspention beam 34 and protrudes from the protuberance 632 of suspention beam 34.
Refer to Fig. 2 to Fig. 6, the pivot block 343 of the corresponding arm 342 of fitting portion 631 is provided with shoulder 633.Preferably, in order to ensure that shoulder 633 to be installed to after pivot block 343 freely pivotable, bearing 634 between shoulder 342 and pivot block 343, has been connected.Especially, in order to be installed on casing 3 easily by casing 63, a shoulder 633 is provided with spring 635.When mounted, this spring 635 of shoulder 633 bias voltage is installed in pivot block 343, after thrust removes, spring 635 resets and drives casing 63 to move to the reset direction of spring 635, the shoulder 633 of opposite side blocks in pivot block corresponding to people 343, like this, the casing 63 well connected and casing 3 can be obtained.Above-mentioned rotating disk 72 is positioned near shoulder 342, and fixes with casing 63.
Refer to Fig. 6, protuberance 632 is provided with the mounting groove 636 of tool section assembly 5.The short transverse of protuberance 632 is consistent with the thickness direction of tool section assembly 5.
In casing 63, fitting portion 631 and protuberance 632 two-part aspect ratio H: h are preferably between 1: 2 to 5: 1.When aspect ratio H: the h of fitting portion 631 and protuberance 632 near 1: 2: if when protuberance 632 is highly set as minimum dimension, namely protuberance 632 height can cover tool section assembly 5 when meeting the minimum constructive height of requirement of strength, easily cause fitting portion 631 intensity less, casing 63 easily lost efficacy with the fit structure of casing 3; If when the height of fitting portion 631 is set as minimum dimension, when namely fitting portion 631 is highly full of short transverse space on suspention beam 34, the height of protuberance 632 can be comparatively large, wastes more casing 63 manufactured materials.When aspect ratio H: the h of the height of fitting portion 631 and protuberance 632 near 5: 1: if when protuberance 632 is highly set as minimum dimension, there is comparatively wide arc gap between casing 63 and casing 3, structure is not compact; If when the height of fitting portion 631 is set as minimum dimension, the height of protuberance 632 can be less, easily causes the solid failure of protuberance 632 tool setting bar assembly 5.Therefore, fitting portion 631 and protuberance 632 two-part aspect ratio H: h are preferably between 1: 2 to 5: 1.Fitting portion 631 and protuberance 632 two-part aspect ratio H: h are optimum between 2: 1.
Casing 63 on longitudinally, in transmission system 6 can being coated on, in also can only reducing gear 62 being coated on.When transmission mechanism 61 is coated on interior by casing 63, casing 63 and the casing 3 after installing motor 1 are fitted together the installation that can complete shrub and hedge trimmer 100, and efficiency of assembling is high.When casing 63 length is larger, the length extending longitudinally of suspention beam 34 also increases thereupon, and demand casing 63 being supported to moment increases equally, easily causes and extends the fracture that near suspention beam 34 original position, stress concentration portion is divided.Therefore, when reducing gear 62 is only coated on interior by casing 63, the length that casing 63 longitudinally occupies is less, therefore reduces the demand to suspention beam 34 intensity.
From another perspective, the structure of embodiment of the present invention can also illustrate with under type.Regard casing 63 as fore shell, regard casing 3 as back cover.A kind of shrub and hedge trimmer 100, comprise fore shell; The back cover of fore shell pivotable is supported from the rear and front end of fore shell; Back cover is built with motor 1; Control the switching mechanism of motor 1; Tool section assembly 5 and by motor 1 transmission of power to the transmission system 6 of tool section assembly 5, transmission system 6 is divided into transmission mechanism 61 and reducing gear 62, and transmission mechanism 61 is positioned at back cover, and reducing gear and tool section assembly are integrally positioned at fore shell.Or, a kind of shrub and hedge trimmer 100, comprise the back cover of fore shell and the rear and front end support fore shell pivotable from fore shell, back cover is built with motor 1, the switching mechanism 2 controlling motor, shrub and hedge trimmer 100 also comprise tool section assembly 5 and by motor 1 transmission of power to the transmission system 6 of tool section assembly 5, transmission system 6 is divided into transmission mechanism 61 and reducing gear 62, and transmission mechanism 61 is positioned at back cover, and reducing gear 62 and tool section assembly 5 are positioned at fore shell.
Tool section assembly 5 extends along the longitudinally of shrub and hedge trimmer 100, and in the reciprocal changing of the relative positions of longitudinally.Because this tool section assembly 5 is in cantilever position relative to casing 3, and the strong point of the misalignment casing 3 tool setting bar assembly 5 of tool section assembly 5 is far away, for alleviating the bias voltage of tool section assembly 5 pairs of casings 3, the two ends of casing 3 to the transmission system 6 rotated integrally with tool section assembly 5 are equipped with supporting construction.
In embodiment provided by the invention, tool section assembly 5 rotates integrally or locates to realize the object at diverse location cutting branch with a part in transmission system 6 entirety or transmission system 6.Relative position variable effect between transmission system 6 and casing 3 cutting position of tool section assembly 5.The angle that rotating mechanism 7 turntable 72 turns over is consistent with the angle that tool section assembly 5 turns over, when the anglec of rotation of rotating disk 72 is 90 degree, tool section assembly 5 has two different cutting positions in rotational home position and rotation ultimate position, as horizontal resection position and vertical cutting position.When rotating disk 72 has multiple anglec of rotation, tool section assembly 5 has multiple cutting position.When anglec of rotation non-90 degree and the multiple thereof of rotating disk 72, tool section assembly 5 has inclined cut position.
In embodiment provided by the invention, motor 1 does not rotate relative to casing 3 with transmission system 6 entirety or a part, and the resistance therefore rotated, compared with little when rotating together with motor 1, lightly can realize tool section assembly 5 and rotate relative to casing 3.
Claims (18)
1. shrub and hedge trimmer, comprise the motor with motor axis, control the switching mechanism of motor, hold the casing of motor, be located on casing for the handle gripped, by motor drive along longitudinally extend and at the tool section assembly of the reciprocal changing of the relative positions work of longitudinally and the rotary power that motor exports is passed to the transmission system of tool section assembly, it is characterized in that: described handle comprises front hand grip and back handle, described front hand grip is positioned at casing front portion, described back handle is positioned at cabinet rear, described motor is fixed relative to casing, tool section assembly is connected with at least part of transmission system, described shrub and hedge trimmer also comprise rotating mechanism, this rotating mechanism makes tool section assembly and at least part of transmission system rotate around the rotation being parallel to motor axis relative to casing.
2. shrub and hedge trimmer as claimed in claim 1, is characterized in that: the two ends of described cabinet supports rotating mechanism.
3. shrub and hedge trimmer as claimed in claim 1, is characterized in that: described casing is provided with the arc track coordinated with rotating mechanism, and transmission system is provided with the output shaft driving tool section assembly, and the central axis of arc track is in the axis of output shaft.
4. shrub and hedge trimmer as claimed in claim 1, is characterized in that: the rotation of described rotating mechanism overlaps with motor axis.
5. shrub and hedge trimmer as claimed in claim 1, it is characterized in that: described rotating mechanism comprise accommodate at least part of transmission system casing, be located at casing or the casing locking button on one of them, be located at casing or the casing rotating disk on another, locking button coordinate with rotating disk or be separated thus casing and casing relative to fixing with can relatively rotate.
6. shrub and hedge trimmer as claimed in claim 5, is characterized in that: described locking button is along rotation radial direction or axially coordinate with rotating disk.
7. shrub and hedge trimmer as claimed in claim 6, is characterized in that: described rotating disk circumference is distributed with some locating holes or breach, and locking button is provided with lock pin, and lock pin can coordinate with one of some locating holes or breach and depart from.
8. shrub and hedge trimmer as claimed in claim 7, it is characterized in that: the locating hole on described rotating disk or the quantity of breach are at least 3, wherein the central angle of two locating holes or the corresponding rotating disk centre of gyration of breach is 90 degree, also has the central angle non-90 degree integral multiple of two locating holes or the corresponding rotating disk centre of gyration of breach.
9. shrub and hedge trimmer as claimed in claim 6, is characterized in that: described locking button and rotating disk are provided with backlash compensation structure and prevent locking button and rotating disk circumference from rocking.
10. shrub and hedge trimmer as claimed in claim 1, is characterized in that: described shrub and hedge trimmer also comprise the ball shaft coupling be located between transmission system and motor.
11. shrub and hedge trimmer as claimed in claim 10, is characterized in that: described ball shaft coupling comprises the rolling member and sleeve that connect with motor drive shaft, and sleeve has the draw-in groove of collecting rolling member, and sleeve one end is connected with an axle, and the other end forms the axle sleeve containing motor drive shaft.
12. shrub and hedge trimmer as claimed in claim 11, is characterized in that: described draw-in groove is arc-shaped slot, and the center of circle of circular arc is positioned on sleeve centerline.
13., as the shrub and hedge trimmer in claim 1-12 as described in any one, is characterized in that: described transmission system comprises transmission mechanism and reducing gear, and transmission mechanism and casing keep relative fixing, and tool section assembly rotates relative to casing together with reducing gear.
14. 1 kinds of shrub and hedge trimmer, comprise fore shell; Support the back cover of fore shell pivotable, described back cover supports the rear and front end of fore shell; Be located at the motor in back cover; Control the switching mechanism of motor; Tool section assembly and motor power is passed to the transmission system of tool section assembly, it is characterized in that: described back cover is provided with handle, described handle comprises front hand grip and back handle, described front hand grip is positioned at back cover front portion, described back handle is positioned at back cover rear portion, and described transmission system and tool section assembly are integrally installed on fore shell.
15. 1 kinds of shrub and hedge trimmer, comprise fore shell; Support the back cover of fore shell pivotable, described back cover supports the rear and front end of fore shell; Be located at the motor in back cover; Control the switching mechanism of motor; Tool section assembly and motor power is passed to the transmission system of tool section assembly, it is characterized in that: described back cover is provided with handle, described handle comprises front hand grip and back handle, described front hand grip is positioned at back cover front portion, described back handle is positioned at back cover rear portion, described transmission system is divided into transmission mechanism and reducing gear, and transmission mechanism is positioned at back cover, and reducing gear and tool section assembly are integrally installed on fore shell.
16. 1 kinds of garden tools, comprise casing, the motor extending motor drive shaft be placed in casing, the transmission system coordinated with motor drive shaft, working head by transmission system drives, it is characterized in that: described casing is provided with handle, described handle comprises front hand grip and back handle, described front hand grip is positioned at casing front portion, described back handle is positioned at cabinet rear, described transmission system comprises ball shaft coupling, described ball shaft coupling coordinates with motor drive shaft, and transmission system rotates around fixed axis relative to casing with working head one.
17. garden tools as claimed in claim 16, is characterized in that: described ball shaft coupling comprises the rolling member and sleeve that connect with motor drive shaft, and sleeve has the draw-in groove of collecting rolling member, and sleeve one end is connected with an axle, and the other end forms the axle sleeve containing motor drive shaft.
18. garden tools as claimed in claim 16, is characterized in that: the angle that described motor drive shaft axis and fixed axis are formed is 0 degree to 30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110281987.5A CN103004485B (en) | 2011-09-21 | 2011-09-21 | Pruning shears and garden tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110281987.5A CN103004485B (en) | 2011-09-21 | 2011-09-21 | Pruning shears and garden tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103004485A CN103004485A (en) | 2013-04-03 |
| CN103004485B true CN103004485B (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110281987.5A Active CN103004485B (en) | 2011-09-21 | 2011-09-21 | Pruning shears and garden tool |
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| CN (1) | CN103004485B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104719007A (en) * | 2013-12-19 | 2015-06-24 | 苏州宝时得电动工具有限公司 | Electric shrub and hedge trimmer |
| CN106508447B (en) * | 2015-09-15 | 2020-01-31 | 南京德朔实业有限公司 | Pruning machine |
| CN106508446A (en) * | 2015-09-15 | 2017-03-22 | 南京德朔实业有限公司 | Pruning machine |
| CN106508444B (en) * | 2015-09-15 | 2020-01-31 | 南京德朔实业有限公司 | Pruner and motor device thereof |
| CN106508448A (en) * | 2015-09-15 | 2017-03-22 | 南京德朔实业有限公司 | Pruning machine |
| EP3162190B1 (en) | 2015-09-15 | 2022-02-09 | Chervon (HK) Limited | Hedge trimmer |
| CN105309209B (en) * | 2015-11-30 | 2018-04-20 | 广西银钢南益制造有限公司 | A kind of multiple degrees of freedom GREEB HEDGE MACHINE |
| CN107295905A (en) * | 2016-04-14 | 2017-10-27 | 苏州宝时得电动工具有限公司 | Insulation system and pruner |
| CN106982653A (en) * | 2017-05-10 | 2017-07-28 | 浙江天泰机械有限公司 | Averruncator self-locking mechanism and averruncator |
| CN109452026A (en) * | 2017-09-06 | 2019-03-12 | 南京德朔实业有限公司 | Pruner |
| CN109588141A (en) * | 2017-09-30 | 2019-04-09 | 南京德朔实业有限公司 | Pruner |
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| CN103004485A (en) | 2013-04-03 |
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Effective date of registration: 20191101 Address after: 215600 No.9, Haixin Road, Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Co-patentee after: POSITEC POWER TOOLS (SUZHOU) Co.,Ltd. Patentee after: POSITEC MACHINERY (ZHANGJIAGANG) CO.,LTD. Address before: 215123 Jiangsu Province, Suzhou City Industrial Park East Road, No. 18 Patentee before: POSITEC POWER TOOLS (SUZHOU) Co.,Ltd. |
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Effective date of registration: 20230713 Address after: Factory buildings 4 # and 7 #, No. 59 Shuangjing Street, Weiting Town, Suzhou Industrial Park, Jiangsu Province, 215123 Patentee after: POSITEC POWER TOOLS (SUZHOU) Co.,Ltd. Address before: No. 9, Haixin Road, Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province 215600 Patentee before: POSITEC MACHINERY (ZHANGJIAGANG) CO.,LTD. Patentee before: POSITEC POWER TOOLS (SUZHOU) Co.,Ltd. |
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