CN103004485A - Pruning shears and garden tool - Google Patents
Pruning shears and garden tool Download PDFInfo
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- CN103004485A CN103004485A CN2011102819875A CN201110281987A CN103004485A CN 103004485 A CN103004485 A CN 103004485A CN 2011102819875 A CN2011102819875 A CN 2011102819875A CN 201110281987 A CN201110281987 A CN 201110281987A CN 103004485 A CN103004485 A CN 103004485A
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- shrub
- 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, especially a kind of tool section assembly is the shrub and hedge trimmer of casing rotation relatively.The invention still further relates to a kind of working head can counterrotating garden tool.
Background technology
Shrub and hedge trimmer in the garden instrument are used for pruning hedge, branch makes it form certain profile.In the common use, shrub and hedge trimmer need to carry out cutting operation in horizontal plane and vertical plane.
A kind of traditional shrub and hedge trimmer have been disclosed such as Chinese patent CN2506064Y patent.This shrub and hedge trimmer back handle is positioned at vertical plane, plane, front hand grip place and back handle place planar quadrature, and the working face of tool section assembly is positioned at horizontal plane.When the operator gripped front hand grip and back handle hedge and branch are carried out operation, the cutting horizontal face was easier to.If but will cut vertical plane the time, whole shrub and hedge trimmer need turn over to turn 90 degrees and carry out operation, the operator can not lift and only can side direction lift at vertical plane, the inconvenience of operator's application of force.
Therefore, for problems of the prior art, need a kind of shrub and hedge trimmer that solve above-mentioned weak point of design.
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 transformed into vertical plane from horizontal plane easily.
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, the switching mechanism of control motor, the casing that holds motor, be located on the casing for the handle that grips, by extending along longitudinally of driving of motor and in the tool section assembly of the reciprocal changing of the relative positions work of longitudinally and the transmission system that the rotary power of motor output is passed to the tool section assembly, described motor is fixed with respect to casing, the tool section assembly is connected with at least part of transmission system, described shrub and hedge trimmer also comprise rotating mechanism, and this rotating mechanism makes tool section assembly and at least part of transmission system rotate around the rotation that is parallel to motor axis with respect to casing.
Preferably, the two ends of described casing support rotary mechanism.
Preferably, described casing is provided with the arc track that cooperates with rotating mechanism, and transmission system is provided with the output shaft that drives the tool section assembly, and the center line of arc track is perpendicular to the axis of output shaft.
Preferably, the rotation of described rotating mechanism overlaps with motor axis.
Preferably, described rotating mechanism comprises the casing of accommodating at least part of transmission system, be located at locking button on one of them of casing or casing, be located at casing or the casing rotating disk on another, thereby the locking button cooperates with rotating disk or to separate casing relative with casing fixing and can relatively rotate.
Preferably, described locking button radially or axially cooperates with rotating disk along rotation.
Preferably, described rotating disk circumferentially is distributed with some locating holes or breach, and the locking button is provided with lock pin, and lock pin can cooperate with one of some locating holes or breach and break away from.
Preferably, the locating hole on the described rotating disk or the quantity of breach are at least 3, and wherein the central angle of the corresponding rotating disk centre of gyration of two locating holes or breach is 90 degree, also have the non-90 degree integral multiples of central angle of the corresponding rotating disk centre of gyration of two locating holes or breach.
Preferably, described locking button and rotating disk are provided with backlash compensation structure and prevent that locking button and rotating disk from circumferentially rocking.
Preferably, described shrub and hedge trimmer also comprise the ball formula shaft coupling of being located between transmission system and the motor.
Preferably, described ball formula shaft coupling comprises and connecting with motor drive shaft and floating ground protrudes the rolling member on motor drive shaft surface and has the sleeve of the draw-in groove of accommodating rolling member and from the extended power transmission shaft of sleeve one end, described draw-in groove is axially extended arc groove.
Preferably, the center of circle of described circular arc is positioned on the sleeve centerline.
Preferably, described transmission system comprises transmission mechanism and reducing gear, and transmission mechanism keeps relative fixing with casing, tool section assembly and reducing gear together relative casing rotation.
This technical scheme has following beneficial effect at least: the first, rotating mechanism makes tool section assembly and at least part of transmission system rotate around the axle rotation that is parallel to motor axis or take motor axis as axle with respect to casing, the tool section assembly cuts hedgerow easily in horizontal plane and vertical plane, convenient operation person uses; The second, motor is fixed with respect to casing, and the weight of rotation is lighter, makes things convenient for the working face conversion; Three, tool section assembly and at least part of transmission system rotating photo be for the conversion that handle pivot to be realized working face, and the cabling that can prevent the handle inner cable is intertwined or becomes flexible 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 that fore shell pivots, described back cover supports the rear and front end of fore shell; Be located at the motor in the back cover; The switching mechanism of control motor; Tool section assembly and motor power passed to the transmission system of tool section assembly, described transmission system and tool section assembly one are 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 that fore shell pivots, described back cover supports the rear and front end of fore shell; Be located at the motor in the back cover; The switching mechanism of control motor; Tool section assembly and motor power 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 one are installed on fore shell.
The present invention also provides a kind of garden tool that makes things convenient for the map function position, its technical scheme is: a kind of garden tool, comprise casing, be placed in the motor that extends motor drive shaft in the casing, the transmission system that cooperates with motor drive shaft, by the working head of transmission system drives, described transmission system comprises ball formula shaft coupling, described ball formula shaft coupling cooperates with motor drive shaft, and the relative casing with the working head one of transmission system rotates around fixed axis.
Preferably, described ball formula shaft coupling comprises and connecting with motor drive shaft and floating ground protrudes the rolling member on motor drive shaft surface and has the sleeve of the draw-in groove of accommodating rolling member and from the extended power transmission shaft of sleeve one end, described draw-in groove is axially extended arc groove.
Preferably, the angle of described motor drive shaft axis and fixed axis formation is that 0 degree is to 30 degree.
Description of drawings
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 of 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 that the shrub and hedge trimmer of the specific embodiment of the invention are along the cutaway view of A-A line among Fig. 1.
Fig. 7 is the schematic diagram that the locking button of the shrub and hedge trimmer of the specific embodiment of the invention cooperates 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 cooperates with rotating disk.
Fig. 9 is the schematic diagram of locking button of the shrub and hedge trimmer of the specific embodiment of the invention.
Figure 10 be the specific embodiment of the invention the backlash compensation structure of shrub and hedge trimmer cooperate schematic diagram.
Figure 11 be the specific embodiment of the invention another schematic diagram of cooperating of the backlash compensation structure of shrub and hedge trimmer.
Figure 12 be the specific embodiment of the invention the 3rd schematic diagram cooperating of the backlash compensation structure of shrub and hedge trimmer.
Figure 13 is the ball formula shaft coupling of the specific embodiment of the invention and the cooperation schematic diagram of motor drive shaft.
Figure 14 is that the specific embodiment of the invention is along the profile of B-B line among Figure 13.
Wherein, the related elements reference numeral is as follows:
100 shrub and hedge trimmer, 41 front hand grip, 631 fitting portions
1 motor, 42 back handles, 632 protuberances
11 motor drive shafts, 43 crawl sections, 633 shoulders
111 grooves, 5 tool section assemblies, 634 bearings
2 switching mechanisms, 6 transmission systems, 635 springs
21 first trigger part 61 transmission mechanisms 636 mounting grooves
22 second trigger part 611 ball formula shaft couplings 7 rotating mechanisms
23 connecting rods, 612 power transmission shafts, 71 locking buttons
3 casings, 613 rolling members, 711 lock pins
31 fans, 614 draw-in grooves, 712 press handles
32 air inlets, 615 sleeves, 713 return units
33 air outlets, 62 reducing gears, 714 adjutages
34 suspention beams, 621 train of reduction gears, 715 engaging tooths
341 vaults, 622 tooth rests, 72 rotating disks
342 arms, 623 gear wheels, 721 locating holes
343 pivot block, 624 pinions, 73 elastic components
35 recesses, 625 eccentric cam groups
4 handles, 63 casings
Embodiment
Fig. 1 to Fig. 6 has disclosed a kind of shrub and hedge trimmer 100, comprise motor 1 with motor axis, control motor 1 switching mechanism 2, hold motor 1 casing 3, be located on the casing 3 transmission system 6, the rotating mechanism 7 that extend along longitudinally and be passed to tool section assembly 5 at the tool section assembly 5 of the reciprocal changing of the relative positions work of longitudinally, with the rotation of motor 1 output that drive for the handle 4 that grips, by motor 1.This rotating mechanism 7 so that tool section assembly 5 with at least part of transmission system 6 with respect to casing 3 around the motor axis rotation, form along motor axis axially, perpendicular to motor axis radially, around motor axis circumferentially.Rotating mechanism 7 makes tool section assembly 5 and 6 rotations of at least part of transmission system, and the working face of tool section assembly 5 is changed at horizontal plane and vertical plane easily, satisfies 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 the general frame that shrub and hedge trimmer 100 are provided and the parts that contain shrub and hedge trimmer 100.This casing 3 is made by plastic material usually.At first, the mode by injection moulding forms two and half shells, then half shell is fastened to and forms together complete casing 3.Casing 3 holds motor 1.Motor drive shaft 11 is connected with fan 31.Be provided with air inlet 32 at the casing 3 corresponding with fan 31.Casing 3 along the opposite other end of motor drive shaft 11 bearing of trends and fan 31 is provided with air outlet 33.Air enters in the casing 3 from air inlet 32, and under the effect of fan 31, air-flow is discharged from air outlet 33, thereby plays the effect of cooling motor 1.
Please refer to Fig. 1 to Fig. 6, handle 4 is located on the casing 3 and is gripped for the operator.In embodiment provided by the invention, handle 4 is one-body molded with casing 3, do not need syndeton between handle 4 and the casing 3, so the integral body 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 work from relative both direction for the operator.Back handle 42 is positioned at casing 3 rear ends, is the ring-type of sealing, is fixed with in back handle 42 inside for the first triggering part 21 of pressing.Front hand grip 41 is positioned at casing 3 front portions, is equally the ring-type of sealing, front hand grip plane, 41 place and back handle 42 place planar quadrature.When the benefit that front hand grip 41, back handle 42 arrange like this is cutting hedge or branch, make the longitudinally of shrub and hedge trimmer 100 parallel with front or the reverse side of operator's health, convenient operation.Certainly, front hand grip 41, back handle 42 can not be close-shaped also.Be fixed with for the second triggering part 22 of pressing in front hand grip 41 inside.First triggers part 21 and second triggers and is provided with connecting rod 23 between the part 22 both are linked together.Only have when pressing simultaneously the first triggering part 21 and the second triggering part 22, could turn on-switch mechanism 2.In addition, front hand grip 41 and back handle 42 all relative casing 3 are motionless, therefore trigger part 21 and trigger cable that part 22 is connected and can not pullled because of front hand grip 41 and back handle 42 rotations with being connected with first, and then cause being electrically connected between the cable inefficacy.
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 forms one for the crawl section 43 of operator's gripping greater than the profile in centre position in the centre position.This crawl section 43 circumferentially all can grip, and therefore, when cutting is higher than the hedge on operator front or the crown or branch, the mode that grips can be lifted with convenient operator's operation by lifting to become.
Please refer to Fig. 1 to Fig. 3 and Fig. 5 and Fig. 6, casing 3 front portions are provided with the suspention beam 34 that extends 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 indents of both sides form pivot block 343.This pivot block 343 supports the rear and front end of transmission system 6, has improved the bias voltage of 6 pairs of casings 3 of transmission system.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 comprises the casing 63 of accommodating at least part of transmission system 6, be located at locking button 71 on one of them of casing 3 or casing 63, be located at casing 3 or casing 63 rotating disk 72 on another, thus the cooperation of locking button 71 and rotating disk 72 or separate casing 3 and casing 63 fixing or rotations.
To shown in Figure 8, the pivot center of rotating mechanism 7 overlaps with motor axis such as Fig. 6.Rotating disk 72 can for a thin slice that snaps in casing 63 or the casing 3, can also be and casing 63 or casing 3 Integral designs that structure is all fairly simple, repeats no more.
Locking button 71 can be radially with rotating disk 72 or is connected mutually axially to realize that locking button 71 is relative fixing with rotating disk 72, and the mode that connects can be butt or clamping.
Such as Fig. 3 and Fig. 5, Figure 6 shows that locking button 71 is located on the casing 3, rotating disk 72 is positioned on the casing 63, locking button 71 cooperates with rotating disk 72 axial clampings.Rotating disk 72 circumferentially is distributed with axially extended locating hole 721, and locking button 71 ends are provided with the lock pin 711 that inserts in the locating hole 721.Be provided with elastic component 73 on the locking button 71.Under lock-out state, elastic component 73 maintenance lock pins 711 snap in the state in the locating hole 721.Press locking button 71, deformation occurs in elastic component 73, and lock pin 711 is from locating hole 721 interior axial disengagings, and rotating disk 72 can be with casing 63 rotations.
In another embodiment, the locking button is located on the casing, and rotating disk is positioned on the casing, and the locking button cooperates to butt with turntable shaft, and this kind embodiment is not shown.Locating hole is not set on the rotating disk, and it is relative with the locking button static with the realization rotating disk that the locking button is connected to the rotating disk axial surface, thereby transmission system is fixed with respect to casing.
In the third embodiment, the locking button is located on the casing, and rotating disk is positioned on the casing, and locking button and rotating disk radially clamping cooperate, and this embodiment is not shown.Some locating holes or breach are set on the circumference of rotating disk, and the locking button radially snaps in realizes in locating hole or the breach that rotating disk is relative with the locking button static, thereby the relative casing of casing is fixed.This structure is for the structure among Fig. 3 and Fig. 5, Fig. 6, and the direction of motion of locking button is transformed to radially and can realizes, repeats no more.
In the 4th kind of embodiment, the locking button is located on the casing, and rotating disk is positioned on the casing, and locking button and rotating disk radially butt cooperate, and this embodiment is not shown.In this kind embodiment, the circumferencial direction of rotating disk does not arrange locating hole or breach, and the locking button is directly abutted to the periphery of rotating disk, and friction realizes the relative static of locking button and rotating disk, thereby the relative casing of casing is fixed.
Such as Fig. 8 and shown in Figure 9, in the 5th kind of embodiment, locking button 71 is positioned on the casing 63, and rotating disk 72 and casing 3 one, locking button 71 radially clamping rotating disk 72 cooperate.Rotating disk 72 indents form some recesses 35.Locking button 71 snaps in the recess 35, and casing 3 is relative fixing with casing 63; Locking button 71 breaks away from recess 35, and casing 3 can rotate relatively with transmission system 6.The locking button 71 of rotating mechanism 7 is embedded in casing 63.Locking button 71 comprises press handle 712, make return unit 713 that press handle 712 resets, driven and extend into adjutage 714 in the casing 3, be positioned at the engaging tooth 715 of adjutage 714 ends by press handle 712.Stressed rear drive adjutages 714 motions of press handle 712, thus so that spinning off, engaging tooth 715 realizes the relative rotation of casing 3 and casing 63 from the recess 35 of casing 3.After external force removed, press handle 712 was at the effect Regression of return unit 713, and adjutage 714 moves thereupon so that engaging tooth 715 and breach 35 interlocks, and casing 3 is relative fixing with casing 63.
The 5th kind of embodiment can be obtained the 6th to the 8th kind of embodiment by simple deformation.The 6th kind: the locking button is located on the casing, and rotating disk is positioned on the casing, and the locking button cooperates to clamping with turntable shaft.The 7th kind: the locking button is located on the casing, and rotating disk is positioned on the casing, and the locking button cooperates to butt with turntable shaft.The 8th kind: the locking button is located on the casing, and rotating disk is positioned on the casing, and locking button and rotating disk radially butt connect and cooperate.Above embodiment is realized on the 5th kind basis easily, therefore repeats no more.
More than introduced locking button 71 and cooperated with rotating disk 72 and realize that locking button 71 and rotating disk 72 realize relatively-stationary mode, below the corresponding control of the anglec of rotation when introducing rotating disk 72 relative casings 3 and rotating.
Such as Fig. 7, rotating disk 72 is with casing 63 rotations and have the centre of gyration.Rotating disk 72 circumferentially is distributed with at least 3 locating holes 721.Locking button 71 is provided with lock pin, and lock pin can cooperate with one of some locating holes and break away from.Wherein the central angle of two locating hole 721 relative centres of gyration is 90 degree, and wherein the central angle of two locating hole 721 relative centres of gyration is non-90 degree central angles.Like this, the anglec of rotation that rotating disk 72 turns over is preset, and except the primary demand that satisfies 90 degree rotations, can satisfy the demand of other special anglecs of rotation.Locating hole 721 also can be breach.
In aforementioned eight kinds of embodiments, all clampings cooperate in some locating holes that the control that realizes the anglec of rotation in rotating disks 72 and the locking button 71 relatively-stationary structures all can be by locking button and circumferentially distribution or the breach to cooperate to realize, repeat no more.
In aforementioned eight kinds of embodiments, it is more convenient that all butts connect the control of the rotating disk 72 of cooperation and the anglec of rotation in the locking button 71 relatively-stationary structures.Differential seat angle when the anglec of rotation is decided by twice butt, and this differential seat angle is continuous angle.
To shown in Figure 12, in all rotating disks 72 and structure that 71 clampings of locking button cooperate, in order to prevent causing rotating disk 72 and locking button 71 to rock at rotating disk 72 and locking button 71 after wearing and tearing, 72 of locking button 71 and rotating disks are provided with backlash compensation structure such as Figure 10.
In the structure of axially clamping cooperation, locating hole 721 or breach reduce gradually along connecting the direction aperture, and the diameter of the part of locking button 71 insertion locating holes 721 or breach keeps constant or connect diameter increase on the direction along deviating from.In the situation of rotating disk 72 and 71 wearing and tearing of locking button, the direction that locking button 71 reduces to the aperture is drawn close, thereby remedies the gap that produces because of wearing and tearing.Or the aperture of locating hole 721 or breach is constant, and the part that locking button 71 cooperates with locating hole 721 or breach connects diameter increase on the direction along deviating from.
In the mechanism that radially clamping cooperates, utilize equally the variation of breach or recess diameter to reach the purpose of backlash compensation, similar with the structure of axial clamping, repeat no more.
Backlash compensation structure all is that the unsteady applying by the conical surface between locking button 71 and the rotating disk 72 reaches the purpose that prevents that locking button 71 and rotating disk 72 from circumferentially rocking.
See also Fig. 4 to Fig. 6, transmission system 6 is used for transmission of power with motor 1 to tool section assembly 5.Transmission system 6 comprises transmission mechanism 61 and reducing gear 62.
See also Fig. 6, Figure 13, Figure 14, transmission mechanism 61 comprises a ball formula shaft coupling 611 and the power transmission shaft 612 that is connected with ball formula shaft coupling 611.Ball formula shaft coupling 611 1 end connecting motor axles 11, other end connection for transmission axle 612.
Ball formula shaft coupling 611 comprises rolling member 613, sleeve 615 and the draw-in groove 614 that is arranged at sleeve 615 inwalls.The position of motor drive shaft 11 corresponding draw-in grooves 614 is provided with the groove 111 that part is accommodated rolling member 613.Sleeve 615 is integrated with power transmission shaft 612, forms an axle sleeve of accommodating motor drive shaft 11.The rotary power of motor drive shaft 11 is finished transmission by groove 111, rolling member 613, draw-in groove 614 successively.Because this axle sleeve cooperates with axle, allow to exist between motor drive shaft 11 and the power transmission shaft 612 0 degree to the rotation amplitude of 30 degree scopes, realize two out of line diaxon synchronization, stable drive, noise is little, vibrates little.Preferably, described draw-in groove 614 front and back are to extending and indent forms a circular arc.The center of circle of circular arc is positioned on sleeve 615 center lines.Rolling member 613 can keep fitting tightly state with draw-in groove 614 all the time.In the embodiment that substitutes, sleeve 615 and power transmission shaft 612 be for split designs, and power transmission shaft 612 and sleeve 615 link together by key.
See also Fig. 4 to Fig. 6, power transmission shaft 612 cooperates with a pair of train of reduction gears 621.Train of reduction gears 621 comprises the tooth rest 622 and the gear wheel 623, the pinion 624 that are installed on the tooth rest of pair of parallel setting.Power transmission shaft 612 meshes the purpose that realization is slowed down with pinion 624 engagements, pinion 624 with gear wheel 623.Tooth rest 622 ends that gear wheel 623 is installed are provided with eccentric cam group 625.Be to have spacing between the center of the cam 626 in the eccentric cam group 625 and tooth rest 622 axis.Eccentric cam group 625 cooperates the transmission of power of further finishing from motor 1 to tool section assembly 5 with tool section assembly 5.The linear reciprocating motion that rotatablely moving of gear wheel 623 is converted into tool section assembly 5 by being installed on gear wheel 623 on the tooth rest 622 and eccentric cam group 625.Tooth rest 622 is as the output shaft of the transmission system arc track center line perpendicular to casing.
See also Fig. 4 to Fig. 6, casing 63 is used for accommodating reducing gear 62 or reducing gear 62 and transmission mechanism 61.Casing 63 comprises at the vault 341 of suspention beam 34 and the fitting portion between the arm 342 631 and protrudes from the protuberance 632 that suspends beam 34 in midair.
See also Fig. 2 to Fig. 6, the pivot block 343 of fitting portion 631 corresponding arms 342 is provided with shoulder 633.Preferably, in order to guarantee freely to pivot after shoulder 633 is installed to pivot block 343, connected bearing 634 between shoulder 342 and the pivot block 343.Especially, for casing 63 is installed on the casing 3 easily, a shoulder 633 is provided with spring 635.When mounted, this spring 635 of shoulder 633 bias voltages is installed on the pivot block 343, after thrust removes, spring 635 resets and drives casing 63 to the direction motion that resets of spring 635, the shoulder 633 of opposite side blocks in pivot block 343 corresponding to people, casing 63 and the casing 3 that like this, can obtain well to connect.Above-mentioned rotating disk 72 is positioned near the shoulder 342, and fixing with casing 63.
See also 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.
Fitting portion 631 and protuberance 632 two-part aspect ratio H: h are preferably between 1: 2 to 5: 1 in the casing 63.Aspect ratio H when fitting portion 631 and protuberance 632: h is near 1: 2 the time: if when protuberance 632 height settings are minimum dimension, be that protuberance 632 height is can cover tool section assembly 5 and satisfy the minimum constructive height of requirement of strength the time, cause easily fitting portion 631 intensity less, casing 63 lost efficacy easily with the fit structure of casing 3; If when the height setting of fitting portion 631 is minimum dimension, when namely fitting portion 631 highly was full of on the suspention beam 34 the short transverse space, the height of protuberance 632 can be larger, wastes more casing 63 manufactured materials.When the height of fitting portion 631 and the aspect ratio H of protuberance 632: h were near 5: 1: if when protuberance 632 height settings are minimum dimension, have larger gap between casing 63 and the casing 3, structure was not compact; If when the height setting of fitting portion 631 was minimum dimension, the height of protuberance 632 can be less, causes easily the solid failure of protuberance 632 tool setting bar assemblies 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 were optimum between 2: 1.
From another perspective, the structure of embodiment of the present invention can also following mode illustrate.Regard casing 63 as fore shell, regard casing 3 as back cover.A kind of shrub and hedge trimmer 100 comprise fore shell; Support the back cover that fore shell pivots from the rear and front end of fore shell; Motor 1 is housed in the back cover; The switching mechanism of control motor 1; Tool section assembly 5 and with the transmission system 6 of motor 1 transmission of power to 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 one are positioned at fore shell.Or, a kind of shrub and hedge trimmer 100, comprise fore shell and support the back cover that fore shell pivots from the rear and front end of fore shell, the switching mechanism 2 of motor 1, control motor is housed in the back cover, shrub and hedge trimmer 100 also comprise tool section assembly 5 and with the transmission system 6 of motor 1 transmission of power to 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 with respect to casing 3, and the strong point of the misalignment casing 3 tool setting bar assemblies 5 of tool section assembly 5 is far away, for alleviating the bias voltage of 5 pairs of casings 3 of tool section assembly, 3 pairs of two ends with the transmission system 6 of tool section assembly 5 one rotation of casing are equipped with supporting construction.
In embodiment provided by the invention, tool section assembly 5 cuts branch with a part of one rotation or location in transmission system 6 integral body or the transmission system 6 to be implemented in diverse location purpose.The relative position variable effect that transmission system 6 and casing are 3 cutting position of tool section assembly 5.The angle that rotating mechanism 7 turntables 72 turn over is consistent with the angle that tool section assembly 5 turns over, when the anglec of rotation of rotating disk 72 is 90 when spending, tool section assembly 5 has two different cutting positions in the rotation original position with the rotation ultimate position, such as horizontal resection position and vertical cutting position.When rotating disk 72 had a plurality of anglec of rotation, 5 of tool section assemblies had a plurality of cutting positions.When non-90 degree of the anglec of rotation of rotating disk 72 and multiple thereof, tool section assembly 5 has the inclined cut position.
In embodiment provided by the invention, motor 1 is not with transmission system 6 whole or relatively casing 3 rotations of a part, and is little when therefore the resistance of rotation rotates together with motor 1, can light realization tool section assembly 5 relative casing 3 rotations.
Claims (18)
1. shrub and hedge trimmer, comprise the motor with motor axis, the switching mechanism of control motor, the casing that holds motor, be located on the casing for the handle that grips, by extending along longitudinally of driving of motor and in the tool section assembly of the reciprocal changing of the relative positions work of longitudinally and the transmission system that the rotary power of motor output is passed to the tool section assembly, it is characterized in that: described motor is fixed with respect to casing, the tool section assembly is connected with at least part of transmission system, described shrub and hedge trimmer also comprise rotating mechanism, and this rotating mechanism makes tool section assembly and at least part of transmission system rotate around the rotation that is parallel to motor axis with respect to casing.
2. shrub and hedge trimmer as claimed in claim 1 is characterized in that: the two ends of described casing support rotary mechanism.
3. shrub and hedge trimmer as claimed in claim 1, it is characterized in that: described casing is provided with the arc track that cooperates with rotating mechanism, and transmission system is provided with the output shaft that drives the tool section assembly, and the center line of arc track is perpendicular to the axis of output shaft.
4. shrub and hedge trimmer as claimed in claim 1, it 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 comprises the casing of accommodating at least part of transmission system, be located at locking button on one of them of casing or casing, be located at casing or the casing rotating disk on another, thereby the locking button cooperates with rotating disk or to separate casing relative with casing fixing and can relatively rotate.
6. shrub and hedge trimmer as claimed in claim 5, it is characterized in that: described locking button radially or axially cooperates with rotating disk along rotation.
7. shrub and hedge trimmer as claimed in claim 6, it is characterized in that: described rotating disk circumferentially is distributed with some locating holes or breach, and the locking button is provided with lock pin, and lock pin can cooperate with one of some locating holes or breach and break away from.
8. shrub and hedge trimmer as claimed in claim 7, it is characterized in that: the locating hole on the described rotating disk or the quantity of breach are at least 3, wherein the central angle of the corresponding rotating disk centre of gyration of two locating holes or breach is 90 degree, also has the non-90 degree integral multiples of central angle of the corresponding rotating disk centre of gyration of two locating holes or breach.
9. shrub and hedge trimmer as claimed in claim 6, it is characterized in that: described locking button and rotating disk are provided with backlash compensation structure and prevent that locking button and rotating disk from circumferentially rocking.
10. shrub and hedge trimmer as claimed in claim 1, it is characterized in that: described shrub and hedge trimmer also comprise the ball formula shaft coupling of being located between transmission system and the motor.
11. shrub and hedge trimmer as claimed in claim 1 is characterized in that: described ball formula shaft coupling comprises rolling member and the sleeve that connects with motor drive shaft, and sleeve has the draw-in groove of accommodating rolling member, and sleeve one end is connected with an axle, and the other end forms the axle sleeve that contains 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 the sleeve centerline.
13. such as the described shrub and hedge trimmer of any one among the claim 1-12, it is characterized in that: described transmission system comprises transmission mechanism and reducing gear, transmission mechanism keeps relative fixing with casing, tool section assembly and reducing gear together relative casing rotation.
14. shrub and hedge trimmer comprise fore shell; Support the back cover that fore shell pivots, described back cover supports the rear and front end of fore shell; Be located at the motor in the back cover; The switching mechanism of control motor; Tool section assembly and motor power passed to the transmission system of tool section assembly, it is characterized in that: described transmission system and tool section assembly one are installed on fore shell.
15. shrub and hedge trimmer comprise fore shell; Support the back cover that fore shell pivots, described back cover supports the rear and front end of fore shell; Be located at the motor in the back cover; The switching mechanism of control motor; Tool section assembly and motor power passed to the transmission system of tool section assembly, it is characterized in that: 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 one are installed on fore shell.
16. garden tool, comprise casing, be placed in the motor that extends motor drive shaft in the casing, the transmission system that cooperates with motor drive shaft, by the working head of transmission system drives, it is characterized in that: described transmission system comprises ball formula shaft coupling, described ball formula shaft coupling cooperates with motor drive shaft, and the relative casing with the working head one of transmission system rotates around fixed axis.
17. garden tool as claimed in claim 16 is characterized in that: described ball formula shaft coupling comprises rolling member and the sleeve that connects with motor drive shaft, and sleeve has the draw-in groove of accommodating rolling member, and sleeve one end is connected with an axle, and the other end forms the axle sleeve that contains motor drive shaft.
18. garden tool as claimed in claim 16 is characterized in that: the angle that described motor drive shaft axis and fixed axis form is that 0 degree is 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 |
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| Publication Number | Publication Date |
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| CN103004485A true CN103004485A (en) | 2013-04-03 |
| CN103004485B 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) |
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| 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 |
| CN105309209A (en) * | 2015-11-30 | 2016-02-10 | 广西银钢南益制造有限公司 | Multiple-degree-of-freedom hedge trimmer |
| CN106508447A (en) * | 2015-09-15 | 2017-03-22 | 南京德朔实业有限公司 | Pruning machine |
| CN106508444A (en) * | 2015-09-15 | 2017-03-22 | 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 |
| CN106508446A (en) * | 2015-09-15 | 2017-03-22 | 南京德朔实业有限公司 | Pruning machine |
| CN106982653A (en) * | 2017-05-10 | 2017-07-28 | 浙江天泰机械有限公司 | Averruncator self-locking mechanism and averruncator |
| 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 |
| 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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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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