CN205552453U - Swing power tool - Google Patents

Abstract

The utility model relates to a swing power tool, include: a housing. The motor is acceptd in the casing, rotary motion is by motor drive to the drive shaft, the output shaft is done around the swing of self axis by the drive shaft drive, drive mechanism turns into the swing of output shaft with the rotary motion of drive shaft, and drive mechanism is including installing at the epaxial eccentric device of drive and connecting the fork assembly of eccentric device and output shaft, eccentric device includes two at least driving pieces, fork assembly include with output shaft's shift fork spare, with shift fork spare swing joint's support piece, support piece includes cooperation portion, still including setting up the adjustment mechanism on the casing, adjustment mechanism operationally adjusts the support piece motion to swing power tool for cooperation portion selectively with different driving piece butts, the output shaft has different swing angles.

Description

Swing-type power tool

Technical field

This utility model relates to a kind of power tool, the swing-type power tool of a kind of hand-held.

Background technology

Multi Role Aircraft is the hand-held swing-type power tool that industry is common, and its operation principle is that output shaft is around self Axis does oscillating motion.Therefore, after user is provided with different work heads on the free end of output shaft, such as straight blade, circle After saw blade, triangle frosted dish, spade-type scraper, it is possible to achieve multiple different operating function, as sawed, cut, grind, scraping, with suitable Answer different work requirements.

With specific reference to the existing swing-type power tool 20000 ' of the one shown in Fig. 1 and Fig. 2, including casing 1 ', from casing The output shaft 2 ' that extends in 1 ', it is arranged on the interior motor 11 ' of casing 1 ' and the main shaft 4 ' driven by motor 11 '.Main shaft 4 ' one End connects the eccentric shaft 41 ' offsetting its axis Y setting, and eccentric shaft 41 ' is above provided with a bearing with spherical outer surface 81 ' 8′.Being provided with shift fork 7 ' between main shaft 4 ' and output shaft 2 ', one end pivot of shift fork 7 ' is connected on output shaft 2 ', and the other end is formed There is an arm 71 ' being pointed to bearing 8 ' both sides.The axis X of output shaft 2 ' is substantially vertical with the axis Y of main shaft 4 ', bearing 8 ' Outer surface 81 ' is in close contact with the inner surface of the arm 71 ' of shift fork 7 '.Main shaft 4 ' around its axis Y rotate time, by bearing 8 ' With coordinating of shift fork 7 ', drive output shaft 2 ' to do oscillating motion in certain pendulum angle around himself axis X, and then band The dynamic tool heads 6 ' reciprocally swinging being arranged on output shaft 2 '.

Above-mentioned swing-type power tool 20000 ' operationally, bearing 8 ' under the drive of eccentric shaft 41 ' around the axle of main shaft 4 ' Line Y rotates, and the axially-movable of the shift fork 7 ' being anchored on output shaft 2 ' is defined, therefore, and swing-type power tool 20000 ' defeated Shaft 2 ' can only swing in the range of a fixing pendulum angle.And in use, user it is generally desirable to swing power Instrument 20000 ' can export different pendulum angles, to meet the application of more operating mode.Such as, when using swing-type power tool When 20000 ' installation straight blades are slotted on the wood materials of different hardness, if the hardness of wood materials is relatively low, output shaft The less pendulum angle that 2 ' outputs are conventional；And the hardness of wood materials higher time, under less pendulum angle, wood flour is not allowed Easily discharge, so that straight blade is easy to be stuck, now need the pendulum angle that output shaft 2 ' output is bigger.Obviously, swing Power tool 20000 ' can not meet this demand.

In the applicant's technical scheme disclosed in the patent application document of international publication number WO2012041211A1, logical Crossing toggle promotes bearing to move horizontally along eccentric shaft with connecting rod, connects to the bearing making shift fork be in diverse location, so that Output shaft has different pendulum angles.Position of bearings in this technical scheme is arranged can move change, and shift fork with Bearing completes to connect when being operated, and shift fork produces reciprocating rotary oscillating motion can bring reaction of bearing, and causes bearing Stress easily produces mobile on eccentric shaft, causes spacing may the causing of toggle and connecting rod to lose efficacy and made job insecurity.

Therefore, it is necessary to provide the swing-type power tool of a kind of improvement, to solve the problems referred to above in fact.

Utility model content

In view of this, technical problem to be solved in the utility model is: provide the swing-type power tool of a kind of improvement, should Swing-type power tool can work under the pendulum angle that at least two is different, and structure comparison is stable, and work is not allowed volatile Effect.

In order to solve above-mentioned technical problem, this utility model be the technical scheme is that a kind of swing-type power tool, bag Include: housing；Motor, is housed in described housing；Drive shaft, is driven by described motor and rotates；Output shaft, is driven by described Moving axis drives and does the swing around own axes；Drive mechanism, is described output shaft by the convert rotational motion of described drive shaft Swing, described drive mechanism includes the eccentric being arranged in described drive shaft and connects described eccentric and output shaft Pull-fork assembly；Described eccentric includes what at least two actuator, described pull-fork assembly included being connected with described output shaft The support member that shift fork part is flexibly connected with described shift fork part, described support member includes that auxiliary section, described swing-type power tool are also wrapped Including the governor motion being arranged on described housing, described governor motion operationally regulates described support movements so that described Selectively one of them abuts with described at least two actuator in auxiliary section, thus regulates described output shaft and have different pendulum Dynamic angle.

Preferably, described at least two actuator includes the first actuator and the second actuator, is joining described in primary importance Conjunction portion abuts with described first actuator, and output shaft has the first pendulum angle, in auxiliary section described in the second position and described the Two actuators abut, and output shaft has the second pendulum angle.

Preferably, described first actuator is to eccentric throw and described second actuator of described drive shaft to described drive shaft Eccentric throw equal.

Preferably, described support member is connected on described shift fork part around pivotal axis.

Preferably, described shift fork part include that the first end being connected with described output shaft and described eccentric connect Two ends, wherein said support member is connected to described second end.

Preferably, described auxiliary section include for selectively with the joining of described first actuator and described second actuator Conjunction face.

Preferably, described cooperation face is parallel to the axis of described drive shaft, is coordinating face and described the described in primary importance One actuator abuts；Abut with described second actuator coordinating face described in the second position.

Preferably, definition is reference plane through the plane of described pivot axis and the axis being parallel to described output shaft； Then through described reference plane when described cooperation face rotates between the first position and the second position.

Preferably, described shift fork part includes that two symmetrically arranged forked arms, described auxiliary sections are two, and said two is joined Conjunction portion is rotatably arranged on the forked arm of said two around described pivot axis respectively.

Preferably, described support member also includes the connecting portion connecting said two auxiliary section, described connecting portion and described join Conjunction is provided with rotation-preventing mechanism between portion.

Preferably, described auxiliary section being provided with pivotal axis, described support member is connected to by described pivot axis On described shift fork part.

Preferably, described forked arm is arranged between described auxiliary section and described connecting portion.

Preferably, described pivotal axis connects and has jump ring, between described jump ring and described connecting portion, be provided with elastic component.

Preferably, described rotation-preventing mechanism includes that the first shape being arranged on described pivotal axis joins portion, is arranged on described connection The second shape in portion joins portion.

Preferably, being provided with maintaining body between described support member and described shift fork part, described maintaining body is for by institute State support member the most described shift fork part and be maintained at primary importance or the second position.

Preferably, described governor motion includes what the operating unit being movably connected with housing was connected with described operating unit Transfer unit, wherein said transfer unit selectively coordinates with described support member, the activity of described operating unit is converted into The rotation between the first position and the second position of described support member.

Preferably, described operating unit includes the operating parts being movably attached described housing.

Preferably, described transfer unit includes the rotating group that the transferring member being connected with described operating parts is connected with transferring member Part, wherein said runner assembly can be rotatably connected on described housing around pivot center.

Preferably, described runner assembly include connecting rod that the rotary shaft being connected with described transferring member is connected with rotary shaft, The card extension bar of setting angled with described connecting rod, described card extension bar selectively coordinates with described support member.

Preferably, described transferring member includes the kidney-shaped that the transfer part being connected with described operating parts coordinates with described rotary shaft Hole.

Preferably, described support member is provided with the Access Division coordinated with described card extension bar.

Preferably, described Access Division includes U-shaped opening.

Preferably, described swing-type power tool also includes the stop part relative to housing activity setting, is arranged on described rotation Retainer on assembly, described retainer includes that limiting section and coupling part, described stop part are conflicted with described limiting section, be used for hindering Only described governor motion drives described support movements, and described swing-type power tool working and can quit work under two states Switching；Described stop part coordinates with described coupling part sliding, and described governor motion drives described support movements, and described swing is moved Power instrument is in out-of-work state.

Preferably, described retainer is arranged in described rotary shaft.

Compared with prior art, the beneficial effects of the utility model are: by governor motion, operationally will be located in shift fork Support member between part and actuator moves to diverse location so that the auxiliary section of support member coordinates from different actuators, from And make output shaft export different pendulum angles, with the work requirements of satisfied different occasions；And structure comparison is stable, work is not Easily lost efficacy.

Accompanying drawing explanation

Above-described the purpose of this utility model, technical scheme and beneficial effect can pass through following being capable of The detailed description of specific embodiment of the utility model, describes in combination with accompanying drawing and clearly obtains.

Identical label and symbol in accompanying drawing and description are used for representing element that is identical or that be equal to.

Fig. 1 is the generalized section of existing a kind of swing-type power tool.

Fig. 2 is the partial structurtes schematic perspective view of swing-type power tool shown in Fig. 1.

Fig. 3 is the overall schematic of swing-type power tool of the present utility model.

Fig. 4 is the sectional perspective exploded view of swing-type power tool shown in Fig. 3.

Fig. 5 is the sectional perspective exploded view of swing-type power tool shown in Fig. 3.

Fig. 6 is the sectional perspective schematic diagram of swing-type power tool shown in Fig. 3, and now auxiliary section is in primary importance.

Fig. 7 is the cut-away view of the head capsule part of swing-type power tool shown in Fig. 3.

Fig. 8 is card extension bar and the schematic diagram of Access Division cooperation of swing-type power tool shown in Fig. 3.

Fig. 9 is the sectional perspective exploded view of swing-type power tool shown in Fig. 3.

Figure 10 is the partial schematic diagram that swing-type power tool shown in Fig. 3 is in the first swash angle position, and now trigger member is in Open position.

Figure 11 is the partial schematic diagram that swing-type power tool shown in Fig. 3 is in the first swash angle position, and now trigger member is in Closed position.

Figure 12 is the schematic diagram that the swing-type power tool shown in Fig. 3 is positioned at when regulating pivot angle process.

Figure 13 is the partial schematic diagram that the swing-type power tool shown in Fig. 3 is in the second swash angle position, now at trigger member In closed position.

Figure 14 is the partial schematic diagram that the swing-type power tool shown in Fig. 3 is in the second swash angle position, now at trigger member In open position.

200. swing-type power tool 30. housings 31. work head

35. switch module 36. head capsule 38. casing

40. grip zone 42. motor 44. drive shafts

46. drive mechanism 48. eccentric 50. pull-fork assemblies

52. first actuator 54. second actuator 56. eccentric shafts

58. shift fork part 60. support member 62. auxiliary sections

The 64. forked arms of sleeve pipe 66. 68. coordinate face

70. bearing surface 72. connecting portion 74. rotation-preventing mechanisms

76. installation ends 78. connect end 80. Access Division

81. " U " type opening 82. pivotal axis 84. first perforation

86. second perforation 88. jump ring 90. spring parts

91. depression 92. first shapes are joined portion 94. second shape and are joined portion

96. maintaining body 98. keeper 100. flexible members

102a, 102b retention groove 104. governor motion 106. operating unit

1.8. transfer unit 110. operating parts 112. lid

114. operating groove 116. installed part 118. holding tanks

120. installation portion 122. transferring member 124. runner assemblies

126. transfer part 128. mounting hole 130. host cavities

132. arcuate groove 134. rotary shaft 136. connecting rods

138. card extension bar 140. detent mechanism 142. keepers

144. spring 146a, 146b locating slot 148. release knob

150. trigger member 152. first contact site 154. second contact sites

156. skewed slot 158. stop part 160. retainers

161. fan 162. contacting part 164. stopper sections

166. first limiting section 168. second limiting section 170. coupling parts

Detailed description of the invention

Below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described in detail, so that advantage of the present utility model Can be easier to be readily appreciated by one skilled in the art with feature, thus protection domain of the present utility model is made apparent clearly Define.

Referring to Fig. 3, swing-type power tool 200 includes housing 30, from the output shaft 32 internally extended of housing 30, peace It is contained in the work 31 of output shaft 32 end, for clamping the clamp assembly of work 31 on the axial direction 33 of output shaft 34.In the present embodiment, work head is straight blade, and certainly, work head can also be saw blade, triangle frosted dish, scraper etc. Deng.Axial direction 33 extends approximately along the axis Y being parallel to output shaft.

Housing 30 includes interconnective head capsule 36 and casing 38.The substantially rectilinear extension of casing 38, its longitudinally extending axis Line is X1.In the present embodiment, longitudinal extending axis X1 of casing 38 is approximately perpendicular to the axis Y of output shaft.Head capsule 36 part Extend from one end of casing 38 relative to casing 38 bending, at least partly house output shaft 32.Casing 38 has grip zone 40, uses Person grasps this grip zone 40 during guiding tool.Additionally housing 30 be provided with control swing-type power tool 200 work or Out-of-work switch module 35.

With reference to Fig. 4, casing 38 houses motor 42 (only showing part), and drive shaft 44 is arranged on motor 42, by motor 42 The axis X 2 being driven around drive shaft rotates.Define through the axis X 2 of drive shaft and the plane of the axis Y of output shaft For mid-plane.

In the present embodiment, the axis X 2 of drive shaft overlaps with longitudinal extending axis X1 of casing 38.The i.e. axle of drive shaft Line X2 is substantially the most vertical with the axis Y of output shaft.Certainly, the axis X 2 of drive shaft is parallel with longitudinal extending axis X1 of casing 38 Or angled setting.

With continued reference to Fig. 4, between drive shaft 44 and output shaft 32, it is provided with drive mechanism 46, by drive mechanism 46 by horse Reach 42 and be converted to the output shaft 32 oscillating motion around own axes Y around the rotary motion of the axis X 2 of drive shaft, swing Direction is as shown in arrow A in Fig. 3.After the end of output shaft 32 connects different work heads, such as straight blade, saw blade, triangle Shape frosted dishes etc., i.e. can realize the operations such as cutting or grinding.

Drive mechanism 46 is arranged in head capsule 36, including including eccentric 48 and pull-fork assembly 50.Eccentric 48 is pacified Being contained in drive shaft 44, pull-fork assembly 50 is arranged on output shaft 32.

Concrete, eccentric 48 includes at least two actuator.Multiple actuators have multiple concrete form.At this In embodiment, multiple actuators are the ball bearing that industry is common.Ball bearing has a certain size radius.Multiple actuators Can have an equal amount of radius, it is possible to have different size of radius.It addition, actuator of the present utility model can be free Selectively relative drive shaft 44 has certain eccentric throw.In the embodiment with certain eccentric throw, this actuator can have An equal amount of eccentric throw, it is also possible to be respectively provided with different size of eccentric throw.

In this example, eccentric 48 includes two actuators, the respectively first actuator 52 and the second actuator 54. Wherein the first actuator 52 near motor 42 in other words away from output shaft 32；And the second actuator 54 leans in other words away from motor 42 Nearly output shaft 32.

First actuator 52 is identical with the radius of the second actuator 54, and is arranged in order along the axial direction of drive shaft 44. And arrange with being spaced certain interval in a preferred embodiment.

Eccentric 48 further comprises the fixing eccentric shaft 56 connecting drive shaft 44.Concrete, eccentric shaft 56 and drive shaft 44 eccentric connections, i.e. the axis X 3 of eccentric shaft 56 and the axis X 2 of drive shaft 44 is misaligned, and the spacing that radial deflection is certain.The One actuator 52 and the second actuator 54 are sequentially arranged on eccentric shaft 56.First actuator 52 with the second actuator 54 without relative It is rotatably mounted on eccentric shaft 56, thus is driven by drive shaft 44 and rotate.And in the present embodiment, the first actuator 52 is identical with the radius of the second actuator 54, and is arranged on same eccentric shaft 56.Therefore, the first actuator 52 and second drives Part 54 relative drive shaft 44 has identical eccentric throw.

Certainly, multiple actuator relative drive shafts can also have different size of eccentric throw.Concrete, drive if multiple The radius of moving part is identical, then can arrange the eccentric shaft with different eccentric throw, and the axis X 2 of each eccentric shaft relative drive shaft has Different side-play amounts；Or same eccentric shaft is set, the radius of multiple actuators is different.

And multiple actuator can also self eccentric setting, and be sequentially arranged at the peace of not relative drive shaft skew On dress axle.Now, if multiple actuator radius is identical, then there is identical eccentric throw；If radius is different, then there is difference The eccentric throw of size.

Pull-fork assembly 50 includes the support member 60 that shift fork part 58 is flexibly connected with shift fork part 58.60 bias of support member fill Put 48 and shift fork part 58 couple together.Support member 60 includes auxiliary section 62, and support member 60 can be by operatively movable so that auxiliary section 62 abut from different actuators (first, second actuator 52 and 54), thus just drive the amplitude that shift fork part 58 carries out swinging Difference, so that output shaft has different pendulum angles.

Shift fork part 58 includes the first end being connected to the top of output shaft 32 and the second end being oppositely arranged.Concrete, dial First end of fork 58 is the sleeve pipe 64 being set on output shaft 32, and the second end of shift fork part 58 is for vertically to drive from sleeve pipe 64 Two forked arms 66 that moving axis 44 is horizontal-extending and symmetrical.The forked arm 66 of shift fork part 58 is arranged on first, second actuator 52 With 54 both sides.In this utility model, forked arm 66 does not directly abut with first, second actuator 52 and 54, but logical Cross auxiliary section 62 and realize connecting relation.

Support member 60 is connected on the second end of shift fork part 58 rotationally around pivot axis Z1.Z1 is big for this pivot axis Cause extended along the axis Y-direction of vertical output axle and axis X 2 direction of drive shaft.Define through pivot axis Z1 and The plane of the parallel axis Y with output shaft is reference plane.

In the present embodiment, support member 60 includes two auxiliary sections 62, respectively around pivot axis Z1 rotatably arranged with On two forked arms 66.Two auxiliary sections 62 drive one or two 54 to abut with the first actuator 52 or second simultaneously, make output shaft There is different pendulum angles.Certainly, if only arranging an auxiliary section can realize different pendulum angles too.

Two auxiliary sections 62 are symmetrical arranged, existing as a example by one, describe its concrete structure.Auxiliary section 62 includes coordinating Face 68, this cooperation face 68 selectively abuts with the first actuator 52 or described second actuator.Auxiliary section 62 is arranged on fork After on shape arm 66, auxiliary section 62, around in the rotation process of pivot axis Z1, coordinates face 68 then through reference plane.I.e. coordinate face 68 when abutting from different actuators, and its position lays respectively at the both sides of reference plane.

Auxiliary section 62 also includes the bearing surface 70 abutting and transmitting power with shift fork part 58.Bearing surface 70 is with to coordinate face 68 opposing Arrange.Generally, the area of bearing surface 70 is more than the area in cooperation face 68.When bearing surface 70 in auxiliary section 62 around pivot In the rotation process of axis Z1, it is constant in the projection of central plane, then the position that auxiliary section 62 coordinates with shift fork part 58 is the most not Become.But can also be such as the present embodiment, bearing surface is in auxiliary section 62 around in the rotation process of pivot axis Z1, and it is at central plane Projection change.Therefore, auxiliary section 62 abuts from then different with shift fork part 58 positions.

Further, support member 60 also includes the connecting portion 72 connecting two auxiliary sections 62, connecting portion 72 and auxiliary section 62 Between be provided with rotation-preventing mechanism 74.

Connecting portion 72 substantially in " U " type, including be positioned at two free ends installation end 76, connect two installation ends 76 company Connect end 78.Installation end 76 is substantially round in shape, and an installation end 76 is provided with Access Division 80 wherein.Access Division 80 includes substantially In " U " type opening 81, it acts on and is described in detail below.

With further reference to Fig. 5, auxiliary section 62 being provided with pivotal axis 82, forked arm 66 is provided with to be worn for pivotal axis 82 first Hole 84.Installation end 76 is provided with the second perforation 86 passed for pivotal axis 82.During installation, pivotal axis 82 sequentially passes through forked arm 66 On first perforation 84 and installation end 76 on second perforation 86.Thus support member 60 can be around pivot axis Z1 relative to shift fork Part 58 is pivotally connected.When support member 60 produces mobile, coordinate face 68 selectively with the first actuator 52 or the second actuator 54 abut (with reference to Fig. 6, cooperation face 68 abuts) with the first actuator 52, so that output shaft 32 has different pendulum angles.

In the present embodiment, forked arm 66 is arranged between the installation end 76 of auxiliary section 62 and connecting portion 72.Certainly, coordinate Portion 62 and installation end 76 can also be arranged on the side of forked arm 66.

In the present embodiment, on the free end of pivotal axis 82, connection has jump ring 88.Jump ring is by auxiliary section 62, connecting portion 72 And forked arm 66 is relatively fixed.For eliminating axial gap, between jump ring and connecting portion 72, it is additionally provided with spring part 90.Here, Spring part 90 can be disk spring.

Concrete, the installation end 76 of connecting portion 72 is additionally provided with the depression 91 accommodating spring part 90, so can save whole The volume of body.

In order to auxiliary section 62 can be able to synchronize to rotate around pivot axis Z1 with connecting portion 72, connecting portion 72 and auxiliary section Rotation-preventing mechanism 74 it is provided with between 62.In the present embodiment, rotation-preventing mechanism 74 includes that the first shape being arranged on pivotal axis 82 is joined Portion 92, the second shape of the installation end 76 being arranged on connecting portion 72 joins portion 94.Concrete, it is " work " type that the first shape joins portion 92 for cross section Boss；It is to be arranged on installation end 76 approximately mid way between to be provided with the groove that cross section is " work " type that second shape joins portion 94.During installation, will The boss 92 of " work " type of auxiliary section 62 is directed at the groove of " work " type and inserts, and so, two auxiliary sections 62 and connecting portion 72 are the most permissible Synchronize to rotate around pivot axis Z1.

Certainly, as understood by those skilled in the art, the first shape joins portion 92 and the second shape is joined portion 94 and is not only limited to " work " type, its concrete form can have a lot.

Referring again to Fig. 6 and Fig. 7, support member 60 can rotate around pivot axis Z1, make auxiliary section 62 with the first actuator Activity between 52 primary importance and the second positions abutted with the second actuator 54 abutted.Cooperation face 68 is parallel and drive shaft Axis X 2, when auxiliary section 62 is positioned at primary importance, coordinates face 68 and the outer surface sliding contact of the first actuator 52.When motor 42 When driving drive shaft 44 to rotate, eccentric shaft 56 then axis X 2 eccentric rotary of relative drive shaft under the drive of drive shaft 44, enters And drive axis X 2 eccentric rotary of the first relative motor of actuator 52.The outer surface of cooperation face 68 and the first actuator 52 slides Contact, under the drive of auxiliary section 62, the axis Y of the relative output shaft of shift fork part 58 swings, and drives output shaft 32 to enclose further Swing with the first pendulum angle around himself axis Y.

When auxiliary section 62 is positioned at the second position, coordinate face 68 and the outer surface sliding contact of the second actuator 54.Coordinating Under the drive in portion 62, the axis Y of the relative output shaft of shift fork part 58 swings, and drives output shaft 32 around himself axis further Y swings with the second pendulum angle.

First pendulum angle is less than the second pendulum angle, and user can select applicable pendulum angle according to actual condition.

Prevent from causing support member 60 to leave primary importance or the second position at work because of vibration, at support member 60 with dial Being provided with maintaining body 96 between fork 58, described maintaining body 96 is for being maintained at several by relative for support member 60 shift fork part 58 On position.

In the present embodiment, when support member 60 moves to primary importance or the second position, maintaining body 96 can allow and prop up Support member 60 is stably maintained at primary importance or the second position.

Can be found in Fig. 5 and Fig. 6, maintaining body 96 includes keeper 98, provides the flexible member 100 of keeper biasing force. Keeper 98 is arranged on shift fork part 58, under the bias effect by flexible member 100, abuts to support member 60.Thus to support Part 60 plays the effect that location keeps.And when needing releasing location holding effect to make support member 60 move, as long as user gram Take the bias effect of flexible member 100.

And correspondence support member 60 is maintained at primary importance or the second position.Support member 60 is additionally provided with two retention grooves 102a, 102b, when support member 60 moves, keeper 98, under the bias effect of flexible member 100, is joined with retention groove 102a Close, then support member 60 can be stably maintained at primary importance；When support member 60 moves to the second position, keeper 98 is in elasticity Under the bias effect of element 100, coordinate with retention groove 102b.

Swing-type power tool 200 also has the governor motion 104 for regulating support member 60 activity.This governor motion 104 Regulation support member 60 rotates around pivot axis Z1, makes auxiliary section 62 in the primary importance abutted with the first actuator 52 with the Activity between the second position that two actuators 54 abut.Thus regulate output shaft 32 and there is different pendulum angles, i.e. first Switch between pendulum angle and the second pendulum angle.Referring again to Fig. 5, governor motion 104 is arranged on housing 30, it is simple to user couple It operates regulation.Preferably, governor motion 104 is arranged on head capsule 36, so conveniently operates support member 60.

Governor motion 104 includes being movably connected with the transmission that the operating unit 106 of housing 30 is connected with operating unit 106 Unit 108, wherein transfer unit 108 selectively coordinates with support member 60, and the activity of operating unit 106 is converted into support member 60 rotations between the first position and the second position.

Operating unit 106 includes the operating parts 110 of user operation.In the present embodiment, operating parts 110 is movably coupled to On head capsule 36.Preferably, operating parts 110 linearly moves, and makes transfer unit 108 be converted by the linear mobile of operating unit 106 For support member 60 rotation between the first position and the second position.Preferably, operating parts 110 linearly moves as defeated along output Axial direction 33 moves linearly.Certainly, the axial direction 33 that the moving direction of operating parts 110 is defeated with output can also intersect or grasp Workpiece 110 rotates and is arranged on head capsule 36.Certainly, operating parts 110 also pivotable connection is on housing 30.

Concrete, head capsule 36 is fixedly connected with lid 112, lid 112 is provided with for operating parts 110 by head capsule 36 The operating groove 114 passed outwards through.Also it is fixed with installed part 116 on lid 112, between installed part 116 and lid 112, is provided with appearance Receive groove 118 (can be found in Fig. 1).Installation portion 120 on operating parts 110, installation portion 120 then can be defeated along output in holding tank 118 Axial direction 33 moves.

Transfer unit 108 includes the runner assembly that the transferring member 122 being connected with operating parts 110 is connected with transferring member 122 124, wherein runner assembly 124 can be rotatably connected on housing 30 around pivot center Z2.Wherein runner assembly 124 is optional Coordinate with support member 60 with selecting, be used for operating support member 60 and rotate between the first position and the second position.

In the present embodiment, transferring member 122 is substantially in shaft-like, and one end is provided with the transfer part being connected with operating parts 110 126, the other end is provided with the mounting hole 128 being connected with runner assembly 124.Operating parts 110 is provided with the receipts housing transfer part 126 Cavity volume (not shown).Installed part 116 is provided with the arcuate groove 132 passed for transfer part 126, and the center of circle of arcuate groove 132 is positioned at On pivot center Z2.Transfer part 126 coordinates through arcuate groove 132 with the host cavity of operating parts 110.

Transfer part 126 is the most cylindrical, and the shape of host cavity is rectangle, and the diameter of transfer part 126 and host cavity The width of 130 is suitable.Therefore, transfer part 126 houses to host cavity 130, on the axial direction 33 defeated along output, and transfer part 126 without relative movement or have less moving relative to host cavity 130, and on the axial direction 33 being perpendicular to output shaft, permissible The most movable.Therefore, transfer part 126 can be driven around rotary shaft when operating parts 110 moves along the defeated axial direction 33 of output Line Z2 rotates.

Runner assembly 124 include connecting rod 136 that the rotary shaft 134 being connected with transferring member 126 is connected with rotary shaft 134, The card extension bar 138 of setting angled with connecting rod 136.Card extension bar 138 selectively coordinates with the Access Division 80 of support member 60.

Rotary shaft 134 is rotatably connected on head capsule 36 around pivot center Z2.One end of rotary shaft 134 and mounting hole 128 connect, thus, operating parts 110 drive transfer part 126 around pivot center Z2 rotate, it is possible to drive rotary shaft 134 and with turn Connecting rod 136 and card extension bar 138 that moving axis 134 connects rotate around pivot center Z2.

Shackle member 138 and the angled setting of connecting rod 136.Preferably, card extension bar 138 and connecting rod 136 are in 90 degree of settings. Referring to Fig. 8, card extension bar 138, when support member 60 is positioned at primary importance and the second position, does not coordinate with Access Division 80, only When pendulum angle needs switching, namely move along exporting defeated axial direction 33 when operating parts 110, drive card extension bar 138 During rotating around pivot center Z2, the meeting that card extension bar 138 rotates is fastened in " U " type opening 81, thus drives and prop up Support member 80 rotates around pivot axis Z1.So, the first pendulum angle or the second pendulum angle are had determined that in when pendulum angle After, governor motion 104 just disengagement coordinates with support member 60, thus support member 60 does not interferes with while swinging with shift fork 58 Governor motion 104, it is to avoid drive operating parts 110 synchronous hunting.

The process of its pendulum angle switching is described in detail below down.Assuming that the initial position of swing-type power tool 200 is Fig. 6 Shown in Fig. 7.Now first actuator 52 in the face, auxiliary section 68 of support member 60 abuts.When swing-type power tool 200 starts work After work, when motor 42 drives drive shaft 44 to rotate, the eccentric shaft 56 then axis of relative drive shaft under the drive of drive shaft 44 X2 eccentric rotary, and then drive axis X 2 eccentric rotary of the first relative motor of actuator 52.Cooperation face 68 and the first actuator The outer surface sliding contact of 52, under the drive of auxiliary section 62, the axis Y of the relative output shaft of shift fork part 58 swings, further Output shaft 32 is driven to swing around himself axis Y with the first pendulum angle.

And when user needs to export bigger pendulum angle according to actual condition, user operation governor motion 104, to setting aside Dynamic operating parts 110, thus drive runner assembly 124 to rotate around pivot center Z2.So, card extension bar 138 is around pivot center Z2 rotates, and can be found in Fig. 8, and card extension bar 138 rotates counterclockwise, and in rotation process, card extension bar 138 is fastened on " U " type opening 81 In, thus drive support member 60 to rotate around pivot axis Z1.The cooperation face of making 68 is converted to by abutting against with the first actuator 52 Abut with the second actuator 54.So, after swing-type power tool 200 starts work, the most corresponding output of output shaft 32 one is relatively The oscillating motion of big pendulum angle.If user there is a need to less pendulum angle, as long as reverse operating governor motion 104, make Support member 60 is back to initial position.So the pendulum angle of swing-type power tool 200 can be carried out size adjustment.

By foregoing description, by governor motion, operationally will be located in the support member between shift fork and actuator Mobile to different positions, so that coordinating face to coordinate from different actuators, so that the angle of oscillation that output shaft output is different Degree, with the work requirements of satisfied different occasions；And structure comparison is stable, work is not easy to lose efficacy.But this utility model is also Being not limited to this, auxiliary section is provided with two cooperation faces, coordinates with first, second actuator respectively and can realize this practicality too Novel.

In order to limit the moving range of operating parts 110, guarantee that pendulum angle switching puts in place, at housing 30 and governor motion Detent mechanism 140 it is provided with between 104.Referring back to Fig. 5 and Fig. 7, in the present embodiment, detent mechanism 140 include keeper 142, The spring 144 of keeper biasing force is provided.Keeper 142 is arranged in transfer part 126, under the bias effect by spring 144, supports Come to head capsule 36.Thus operating parts 110 is played positioning action.And need to release positioning action and make operating parts 110 move Time, as long as user overcomes the bias effect of spring 144.

And switch between two pendulum angles of correspondence.Head capsule 36 is additionally provided with two locating slots 146a, 146b, When operating parts 110 moves and drives transfer part 126 to rotate, keeper 142 is under the bias effect of spring 144, with locating slot 146a coordinates, it is determined that have been switched to primary importance；When the drive transfer part 126 that moves operating parts 110 moves to the second position, Keeper 142, under the bias effect of spring 146, coordinates (not shown) with locating slot 146b.Thus operator is the most just known Have been switched to the second position.

Clear in order to show, instruction structure can also be set in the position of the respective operations part 110 of housing 30, facilitate user Understand the mode of operation of current oscillation power tool 200.Instruction structure can be arrow, illustrate.

In order to ensure safety, when swing-type power tool 200 works, governor motion 104 is not the most allowed to carry out pendulum angle Switching.Equally, governor motion 104 carry out pendulum angle switching time, the most do not allow swing-type power tool 200 can start shooting into Row work.Therefore, swing-type power tool 200 also includes the movable stop mechanism arranged of relative housing 30.Stop mechanism has two Individual position.When switch module 35 starts motor 42, stop mechanism is positioned at primary importance, stops governor motion 104 to drive support member 60 motions, carry out pendulum angle switching.Now swing-type power tool 200 can switch under work with the two states that quits work； When governor motion 104 drives support member 60 to move, when carrying out pendulum angle switching, stop mechanism is positioned at the second position, and prevention is opened Close assembly 35 and start motor 42.Swing-type power tool 200 is in out-of-work state.

Referring back to Fig. 9, switch module 35 includes release knob 148 trigger member 150 that be connected fixing with release knob 148.Motor It is electrically connected with switch (not shown) on 42, is used for opening motor running or closing motor running.Release knob 148 is movably It is arranged on housing 30, is used for driving trigger member 150 for triggering switch open or closedown, makes swing-type power tool 200 exist Work is changed corresponding with the two states incision that quits work.Trigger member 150 has open position and the closedown horse starting motor 42 Reach the closed position of 42.

Trigger member 150 includes the first contact site 152 and the second contact site 154.Wherein the second contact site 154 is used for and switch Connect or disengage and connect.Generally to the direction sliding trigger member 150 near work head (being not drawn in figure), the second contact site 154 Touch switch, trigger member 150 moves to open position, and motor 42 starts.And by triggering to the direction sliding away from work head Part 150, the second contact site 154 disengages and coordinates with switch, and trigger member 150 moves to closed position, and motor 42 quits work.

First contacting part 152 coordinates with stop mechanism, and the first contacting part 152 is provided with skewed slot 156 and coordinates with stop mechanism.Should Skewed slot 156 is obliquely installed relative to the axis X 2 of drive shaft.The moving direction of trigger member 150 is parallel with the axis X 2 of drive shaft to be set Put, when trigger member 150 moves, drive stop mechanism motion.

Stop mechanism includes the stop part 158 that relative housing activity is arranged, and stop part 158 is the most movable. Swing-type power tool also includes the retainer 160 being connected with governor motion 104, and concrete, retainer 160 can be with transfer unit 108 or operating unit 106 connect.In the present embodiment, retainer 160 is fixing even with the rotary shaft 134 in transfer unit 108 Connecing, retainer 160 includes limiting section and coupling part.Wherein stop part 158 is positioned at primary importance (can be found in Figure 10 and Figure 14), only Block piece 158 is conflicted with limiting section, is used for stoping governor motion to drive support member 60 activity to carry out pendulum angle switching, it is allowed to trigger Part 150 is movable relative to housing 30, and trigger member 150 can start or close motor, and now, swing-type power tool 200 can be in work Make to switch under the two states that quits work；Stop part 158 is positioned at the second position, sees Figure 12, and stop part 158 is sliding with coupling part Moving and coordinate, governor motion 104 drives support member 60 movable (can be found in Fig. 8, card extension bar 80 is in an intermediate position), is used for putting Dynamic angle switching, now, stops trigger member 150 movable relative to housing 30, and swing-type power tool 200 is in out-of-work shape State.

Referring back to Fig. 9, in the present embodiment, stop part 158 is movable to be housed in housing 30, concrete, stop part 158 It is arranged between head capsule 36 and casing 38, and the displacement that stop part 158 is in the direction of the axis X 2 of drive shaft is limited.

In order to easy to operate, structure is compacter, can be arranged between fan 161 and output shaft 32 by stop part 158. Fan 161 is driven by motor 42, is used for cooling down motor 42.

Stop part 158 is generally curved, including contacting part 162 and stopper section 164.Contacting part 162 and stopper section 164 are substantially It is arranged on the two ends of arc.Wherein, contacting part 162 is housed in skewed slot 156, when trigger member 150 moves, due to stop part 158 Displacement in the direction of the axis X 2 along drive shaft is limited, and trigger member 150 then can drive stop part 158 to rotate.This backstop Part 158 can rotate around the axis of the axis X 2 being parallel to drive shaft；Preferably, stop part 158 is around the axis X 2 of drive shaft Rotate.

Retainer 160 is fixedly installed in rotary shaft 134, can be driven around pivot center Z2 by operating unit 106 and rotate Motion.Certainly, retainer 160 may also be arranged on other parts of transfer unit 108, on transfer unit 108, or is arranged on biography Pass between unit 108 and operating unit 106, as long as this retainer 160 can be driven by operating unit 110.Therefore, if will be only The relative housing of moving part 160 30 is fixed, it is possible to stop operating unit 106 movable.

Retainer 160 is rotated by operating unit 106.Preferably, retainer 160 around pivot center Z2 hang down Straight in the axis Y of output shaft.Certainly, pivot center Z2 can also be perpendicular to the axis X 2 of drive shaft simultaneously.Preferably, rotary shaft Line Z2 is perpendicular to the axis X 1 of output shaft and the plane of axis X 2 definition of drive shaft.

In the present embodiment, referring back to Figure 10, limiting section includes the first limiting section selectively coordinated with stopper section 164 166 and second limiting section 168.Specifically, retainer 160 is respectively provided with first corresponding with the first pendulum angle spacing Portion 166, second limiting section 168 corresponding with the second pendulum angle.Between the first limiting section 166 and the second limiting section 168 It is provided with coupling part 170.

The concrete shape of the first limiting section 166 and the second limiting section 168 can set according to the concrete shape of stopper section 164. In the present embodiment, stopper section 164 be shaped as column, then the first limiting section 166 is set as with the shape of the second limiting section 168 Groove-like.And when stopper section 164 coordinates with the first limiting section 166 or the second limiting section 168, the bearing of trend of groove and output The axis X 1 of axle is parallel.

Output shaft 32 exports several different pendulum angle, and the number of limiting section can be matched.Certainly, if Pendulum angle can be arbitrarily angled, then limiting section can also only arrange one.

As shown in Figure 8, when swing-type power tool 200 is in the first pendulum angle position, now, trigger member 150 is in out Opening position, the contacting part 162 of stop part 158 is housed in the skewed slot 156 on the first contacting part 152, and is positioned at skewed slot 156 phase To the rear end away from work 31.And in trigger member 150 to during near the direction sliding of work 31, drive stop part 158 Axis X 2 around drive shaft rotates so that conflicting with the first limiting section 166 in stopper section 164, stop part 158 is in first Put.So, in this condition, retainer 160 then cannot rotate, and is relatively fixed, thus stops operating parts 110 to move.Therefore, touch Outbox 150 is in the open position, and owing to conflicting with the first limiting section 166 in stopper section 164, user then cannot move operating parts 110. So, the conflict of the first limiting section 166 and stopper section 164 can limit the activity of governor motion 104, i.e. thus stop governor motion Support member 60 is driven to rotate, it is to avoid during start, pendulum angle is conditioned.

When swing-type power tool 200 is after using the first pendulum angle work, need to shut down.Now, as it is shown in figure 9, only Need to be by trigger member 150 towards the direction sliding away from work head, it is possible to close motor.And in trigger member 150 towards away from work During the direction sliding of head, stop part 158 is driven to rotate around the axis X 2 of drive shaft so that stopper section 164 departs from and the first limit Conflict in position portion 166.Now, trigger member 150 is in the closed position, and the contacting part 162 of stop part 158 is housed in the first contacting part In skewed slot 156 on 152, and it is positioned at the front end of skewed slot 156 relatively close work head.In this position, trigger member 150 can be opened Or closedown motor.Certainly, in stopped status, stopper section 164 departs from and coordinates with the first limiting section 166 on retainer 160, rotates Axle 134 then can be conditioned structure 104 and drive rotation, thus promotes card extension bar 138 to coordinate with support member 60, drives support member 60 Rotate together so that output shaft 32 can export different pendulum angles.

And when user needs to export the second pendulum angle according to actual condition, first trigger member 150 is slid onto by user Closed position, as shown in figure 12.During the first pendulum angle and the second pendulum angle are changed, now, operating parts 110 drives Dynamic retainer 160 rotates around pivot center Z2 so that coupling part 170 is slidably matched with the stopper section 164 of stop part 158.From And stoping trigger member 150 to the direction sliding near work head, i.e. trigger member 150 cannot be slid onto open position by user. Coupling part 170 is slidably matched with the stopper section 164 of stop part 158, in the present embodiment, for the side surface of stopper section 164 at coupling The outer surface in conjunction portion 170 slides, and the outer surface of coupling part 170 can be the circular arc with the point on pivot center Z2 as the center of circle Face.

Therefore, governor motion is during regulation, if user attempts by closed position, trigger member 150 is converted to open position Putting, i.e. start motor 42, owing to stop part 158 is in the second position, coupling part 170 is slidably matched with stopper section 164, at this shape State, coupling part 170 can stop that trigger member 150 moves to the direction of work head, make user trigger member 150 to be slid onto out Open position.Ensure that user regulation pendulum angle during, swing-type power tool will not be unlocked.

And after user is adjusted to the second pendulum angle as required, as shown in figure 13.Now trigger member 150 is in closedown Position.Coupling part 170 moves to the position departed from stopper section 164.In this position, trigger member 150 can be turned on and off horse Reach.Certainly, adjustment structure 104 can continue to regulation so that output shaft 32 can export different pendulum angles.

And if when user needs to use the second swing work, only trigger member 150 need to be moved to open position.Such as Figure 14 Shown in, trigger member 150, to the direction sliding near work head, drives stop part 158 to rotate around the axis X 2 of drive shaft, makes Obtaining stopper section 164 to conflict with the second limiting section 168, stop part 158 is in primary importance.And the contacting part 162 of stop part 158 is received Hold in skewed slot 156 on the first contact site 152, and be positioned at skewed slot 156 and be relatively distant from the rear end of work head.In this condition, Retainer 160 then cannot rotate, and is relatively fixed, thus stops operating parts 110.Therefore, trigger member 150 is in the open position, by Conflicting with the second limiting section 168 in stopper section 164, user then cannot move operating parts.So the second limiting section 168 and stopper section The conflict of 164 can limit the activity of governor motion 104, i.e. operating unit 106 and transfer unit 108 can not be driven to rotate, thus hinders Only governor motion 104 regulates support member 60 and rotates, it is to avoid during start, pendulum angle is conditioned.

By foregoing description, when swing-type power tool is either positioned at the first pendulum angle or the second pendulum angle Time, i.e. stop part is positioned at primary importance, and trigger member is in the state triggering switch activated motor, the contacting part of stop part and triggering Part connects, and conflicts with the first limiting section or the second limiting section in the stopper section of stop part, thus stops governor motion regulation to swing Angle, it is to avoid during start, pendulum angle is conditioned.When swing-type power tool is changed at the first pendulum angle and the second pendulum angle During, stop part is positioned at the second position, and the contacting part of stop part is connected with trigger member, and the stopper section of stop part is along auxiliary section Surface sliding coordinate, thus stop trigger member trigger switch activated motor, it is ensured that user regulation pendulum angle process In, swing-type power tool will not be unlocked.

This utility model is not limited to lifted specific embodiment structure, and structure based on this utility model design belongs to This utility model protection domain.

Claims (19)

1. a swing-type power tool, including:

Housing；

Motor, is housed in described housing；

Drive shaft, is driven by described motor and rotates；

Output shaft, is driven by described drive shaft and does the swing around own axes；

Drive mechanism, by the swing that convert rotational motion is described output shaft of described drive shaft, described drive mechanism includes peace It is contained in the eccentric in described drive shaft and connects the pull-fork assembly of described eccentric and output shaft；

It is characterized in that: described eccentric includes that at least two actuator, described pull-fork assembly include with described output shaft even The support member that the shift fork part connect is flexibly connected with described shift fork part, described support member includes auxiliary section, described swing-type power tool Also including the governor motion being arranged on described housing, described governor motion operationally regulates described support movements so that Selectively one of them abuts with described at least two actuator in described auxiliary section, thus regulates described output shaft and have difference Pendulum angle.

Swing-type power tool the most according to claim 1, it is characterised in that: described at least two actuator includes that first drives Moving part and the second actuator, abut with described first actuator in auxiliary section described in primary importance, and output shaft has the first swing Angle, abuts with described second actuator in auxiliary section described in the second position, and output shaft has the second pendulum angle.

Swing-type power tool the most according to claim 2, it is characterised in that: described first actuator is to described drive shaft Eccentric throw is equal to the eccentric throw of described drive shaft with described second actuator.

Swing-type power tool the most according to claim 2, it is characterised in that: described support member is around pivotal axis ground It is connected on described shift fork part.

Swing-type power tool the most according to claim 4, it is characterised in that: described shift fork part includes with described output shaft even The first end connect and the second end being oppositely arranged, wherein said support member is connected to described second end.

Swing-type power tool the most according to claim 4, it is characterised in that: described auxiliary section include for selectively with Described first actuator and the cooperation face of described second actuator.

Swing-type power tool the most according to claim 6, it is characterised in that: described cooperation face is parallel to described drive shaft Axis, abuts with described first actuator coordinating face described in primary importance；Face and described second is being coordinated described in the second position Actuator abuts.

Swing-type power tool the most according to claim 7, it is characterised in that: definition is through described pivot axis and is parallel to The plane of the axis of described output shaft is reference plane；Described cooperation face is then worn when rotating between the first position and the second position Cross described reference plane.

Swing-type power tool the most according to claim 4, it is characterised in that: described shift fork part include two symmetrically arranged Forked arm, described auxiliary section are two, and said two auxiliary section is rotatably arranged in described respectively around described pivot axis On two forked arms.

Swing-type power tool the most according to claim 9, it is characterised in that: described support member also includes connecting described two The connecting portion of individual auxiliary section, is provided with rotation-preventing mechanism between described connecting portion and described auxiliary section.

11. swing-type power tools according to claim 10, it is characterised in that: it is provided with pivotal axis on described auxiliary section, Described support member is connected on described shift fork part by described pivot axis.

12. swing-type power tools according to claim 11, it is characterised in that: connect on described pivotal axis and have jump ring, It is provided with elastic component between described jump ring and described connecting portion.

13. swing-type power tools according to claim 4, it is characterised in that: described support member and described shift fork part it Between be provided with maintaining body, described maintaining body is for being maintained at primary importance or second by the most described for described support member shift fork part Position.

14. swing-type power tools according to claim 4, it is characterised in that: described governor motion includes being movably connected with The transfer unit that the operating unit of housing is connected with described operating unit, wherein said transfer unit selectively with described Support member coordinates, and the activity of described operating unit is converted into the rotation between the first position and the second position of described support member.

15. swing-type power tools according to claim 14, it is characterised in that: described operating unit includes connecting movably It is connected on the operating parts of described housing.

16. swing-type power tools according to claim 15, it is characterised in that: described transfer unit includes and described operation The runner assembly that the transferring member that part connects is connected with transferring member, wherein said runner assembly can around pivot center rotationally Connect on the housing.

17. swing-type power tools according to claim 16, it is characterised in that: described runner assembly includes and described transmission The connecting rod that is connected with rotary shaft of rotary shaft that part connects and the card extension bar of the angled setting of described connecting rod, described card extension bar Selectively coordinate with described support member.

18. swing-type power tools according to claim 17, it is characterised in that: described swing-type power tool also includes relatively The stop part that housing activity is arranged, the retainer that is arranged on described runner assembly, described retainer includes limiting section and coupling Portion, described stop part is conflicted with described limiting section, is used for stoping described governor motion to drive described support movements, described swing Power tool can switch under work with the two states that quits work；Described stop part coordinates with described coupling part sliding, described Governor motion drives described support movements, and described swing-type power tool is in out-of-work state.

19. swing-type power tools according to claim 18, it is characterised in that: described retainer is arranged on described rotary shaft On.