CN109848926A - Electric tool - Google Patents
Electric tool Download PDFInfo
- Publication number
- CN109848926A CN109848926A CN201711232186.3A CN201711232186A CN109848926A CN 109848926 A CN109848926 A CN 109848926A CN 201711232186 A CN201711232186 A CN 201711232186A CN 109848926 A CN109848926 A CN 109848926A
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- CN
- China
- Prior art keywords
- electric tool
- output shaft
- axle
- user
- trigger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
Abstract
The invention discloses an electric tool, comprising: the output shaft, the motor, the shell and the trigger switch; the output shaft comprises an output end for outputting power, the motor is used for driving the output shaft to rotate by taking the first axis as a shaft, and the trigger switch is used for being operated by a user to start the electric tool; the housing includes: the accommodating part is provided with an accommodating cavity for arranging a motor, and the handle part is used for being held by a user; the accommodating part includes: the left side surface and the right side surface are oppositely arranged, the rear side surface far away from the output shaft is oppositely arranged, and the upper side surface and the lower side surface are oppositely arranged; the handle part is arranged on the lower side surface behind the accommodating part; the trigger switch and the handle part form movable connection; the lower side surface extends downwards to form a convex part which comprises a supporting surface for supporting the middle finger of the user when the user holds the electric tool; the bearing surface is located between the output and the trigger switch in a direction parallel to the first axis. The electric tool is reasonable in structural arrangement and accords with ergonomics.
Description
Technical field
The present invention relates to a kind of electric tools.
Background technique
The electric tool of such as electric screwdriver, electric drill one kind can generate biggish vibration in operation process, therefore use
Family often will appear the problem of gripping that cannot be stable when holding this kind of electric tools and being operated.In addition, existing
The structure setting of this kind of electric tools is not reasonable, and user needs the starting of both hands operation ability implementation tool, Huo Zheyong
Family holds not comfortable so that can feel after long period of operation very tired enough.
Summary of the invention
To solve the deficiencies in the prior art, the purpose of the present invention is to provide a kind of structurally reasonable and meet ergonomics
Electric tool.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of electric tool, comprising: output shaft, motor, shell and trigger；Output shaft includes the output for output power
End, for driving output shaft to rotate by axis of first axle, shell is used to grasp for user motor for accommodating motor, trigger
Make to start electric tool；Wherein, shell includes: receiving portion and handle portion, and receiving portion is formed with the receiving for motor to be arranged
Chamber, handle portion are used to hold for user；Receiving portion includes: the left side being oppositely arranged and right side, the rear side far from output shaft
Face and the upper side being oppositely arranged and downside；The downside after receiving portion is arranged in handle portion；Trigger and handle portion
It constitutes and is flexibly connected；Downside has been downwardly extending lug boss, and lug boss is included in support when user holds electric tool and uses
The supporting surface of the middle finger at family；Along the direction for being parallel to first axle, supporting surface is between output end and trigger.
Further, when user holds electric tool, the finger tip setting of the middle finger of user is on the support surface.
Further, left side is formed in user and holds the left groove for being disposed therein thumb when electric tool.
Further, right side is formed in user and holds the right groove for being disposed therein index finger when electric tool.
Further, trailing flank be formed with user hold electric tool when and user between thumb and index finger
The rearward recess that tiger's jaw matches.
Further, electric tool further include: the fan in accommodating chamber is set；Shell is formed with: air flow inlet is gentle
Outflux；Inflow entrance is connected to the inside and outside of shell, and air stream outlet is connected to the inside and outside of shell；In fan rotation,
It is produced from air flow inlet in shell and enters shell then from the radiating airflow of air stream outlet outflow shell；First axle is parallel on edge
On line direction, supporting surface is between trigger and air stream outlet.
Further, when user holds electric tool, the third finger and little finger of toe of user is contacted with trigger.
Further, trigger include user hold electric tool when and user nameless and small abutment
Contact surface；Extend in the plane that contact surface intersects at one with first axle inclination.
Further, motor further includes the motor shaft that can be rotated using second axis as axis；Along perpendicular to first axle
On direction, motor shaft is arranged between output shaft and trigger.
Further, electric tool further include: switch case assembly and reversing switch；Case assembly is switched to be arranged in handle portion institute
In space made of surrounding, reversing switch is connect with switch case assembly；Reversing switch includes extending out to except shell for user
The operation portion of operation；Operating position is in the downside of lug boss.
Further, along the direction for being parallel to first axle, operating position is between supporting surface and trigger.
Further, extend in the plane that supporting surface intersects at least partially in one with first axle inclination.
Further, the downside of supporting surface and receiving portion constitutes a step structure.
Further, motor further includes the motor shaft that can be rotated using second axis as axis；It states between trigger；Output shaft
It is symmetrical arranged about one by first axle and the split Jing Guo second axis；Lug boss along perpendicular to first axle and
The size being parallel on the direction of split is more than or equal to 4mm and is less than or equal to 10mm.
Further, trigger and handle portion composition can be using third axis as the rotation connection of axis.
Further, the third axis of trigger opposite handle portion rotation is mutually perpendicular to first axle.
Further, motor shaft forms or is connected with first gear, and electric tool further includes nibbling with first gear composition
The second gear of conjunction, output shaft are fixedly connected with clutch part；The sliding that output shaft also constitutes along first axle direction with shell connects
Connect, output shaft along first axle slide when, clutch part at least have the couple state contacted with second gear and with the second tooth
Take turns the non-coupled state being detached from.
Further, the slot for being inserted into working accessory is formed with inside output shaft；Electric tool further include: first partially
Press element, ball, bushing and the second biased element；First biased element generates the biasing force that a driving output shaft travels forward,
For working accessory to be locked in slot, bushing is sleeved on the outside of output shaft and constitutes with output shaft along first axle side ball
To be slidably connected, bushing also along first axle direction slide when can at least slide into make ball locking working accessory locking bit
The releasing position of ball release working accessory is set and makes, second element generates the bias that a driving lining is moved towards latched position
Power；Wherein, the biasing force that the first biased element is applied to output shaft is greater than the biasing force that the second biased element is applied to bushing.
The invention has the beneficial effects that: the structure setting of electric tool is reasonable and meets ergonomics.
Detailed description of the invention
Fig. 1 is the perspective view of electric tool of the invention；
Fig. 2 is the left view of the electric tool in Fig. 1；
Fig. 3 is the right view of the electric tool in Fig. 1；
Fig. 4 is the left view after the electric tool removal partial shell in Fig. 1；
Fig. 5 is the sectional view of the electric tool in Fig. 1；
Fig. 6 is left view of the user when holding the electric tool in Fig. 1；
Fig. 7 is right view of the user when holding the electric tool in Fig. 1；
Fig. 8 is top view of the user when holding the electric tool in Fig. 1；
Fig. 9 is perspective view of the electric tool when removing trigger in Fig. 1；
Figure 10 is the enlarged drawing of the part-structure in Fig. 2；
Figure 11 is the perspective view of the partial shell and fan in Fig. 1；
Figure 12 is the schematic diagram of the airflow channel in Fig. 4；
Figure 13 is structure chart of the structure shown in Fig. 5 when removing depth adjustment；
Figure 14 is the enlarged drawing of part-structure in Figure 13；
Figure 15 is the perspective view of trigger in Fig. 1, switch case assembly and reversing switch；
Figure 16 is the sectional view of structure shown in Figure 15.
Specific embodiment
Fig. 1 to electric tool 100 shown in Fig. 2 be specially a kind of electric screwdriver, the electric tool 100 can be used for by
The fasteners such as screw are squeezed into cement, timber.It should be understood that electric tool 100 of the invention or electric drill, electric hammer
Equal tools.
As shown in Figures 1 to 5, electric tool 100 specifically includes: shell 10, motor 51, transmission component 20, output shaft 52
With switching system 30.Wherein, output shaft 52 can be that axis is rotated with output power with first axle 101.For electric screwdriver
Speech, electric tool 100 can also include the depth adjustment 53 for adjusting screw driving depth.
Technical solution of the present invention for convenience of explanation, also define upside as shown in Figure 1, downside, front side, rear side,
Left and right side.
Shell 10 includes: receiving portion 11 and handle portion 12, and receiving portion 11 is formed with the accommodating chamber for motor 51 to be arranged
11a, handle portion 12 are used to hold for user.Receiving portion 11 is further including far from handle portion 12 along 101 direction of first axle
The front end 11b and rear end 11c being connect with handle portion 12.Receiving portion 11 specifically includes: the left side 111 being oppositely arranged and right side
112, far from the trailing flank 113 being arranged of output shaft 52, the upper side 114 that is oppositely arranged and downside 115.Wherein, handle portion 12
It is arranged at the downside 115 of receiving portion 11, handle portion 12 extends obliquely from receiving portion 11.
The setting of motor 51 is formed by accommodating chamber 11a in receiving portion 11, and motor 51 includes the motor for output power
Axis 511, motor shaft 511 can be with second axis 102 for axis rotation relative to shell 10, and the second axis 102 that motor shaft 511 rotates is also
The first axle 101 rotated with output shaft 52 is parallel to each other.In the present embodiment, motor shaft 511 rotate second axis 102 with
The first axle 101 that output shaft 52 rotates is parallel and is not overlapped, it is understood that at output shaft 52 is generally disposed at motor 51
Upside.
Transmission component 20 between motor 51 and output shaft 52 for realizing the transmitting of power.Transmission component 20 specifically can be with
It include: first gear 21, second gear 22 and clutch part 23.Wherein, first gear 21 is fixedly connected or one with motor shaft 511
It is body formed.Second gear 22 is sleeved on output shaft 52 and constitutes being slidably connected along 101 direction of first axle with output shaft 52.
Second gear 22 is also engaged with the composition of first gear 21 and can be rotated relative to output shaft 52.Clutch part 23 and output shaft 52 constitute solid
The entirety that fixed connection, output shaft 52 and clutch part 23 are constituted can be slided with respect to second gear 22 along 101 direction of first axle.When
When output shaft 52 is slided with respect to second gear 22 along 101 direction of first axle, clutch part 23 can be moved to and the with output shaft 52
The position of two gears 22 contact, clutch part 23, which is in, at this time constitutes the couple state coupled with second gear 22, thus at this moment electric
Machine 51 can drive output shaft 52 to rotate.When output shaft 52 is slided with respect to second gear 22 along first axle 101, clutch part 23
The position being detached from second gear 22 can also be moved to output shaft 52, clutch part 23 is in and is detached from second gear 22 at this time
Non-coupled state, at this moment if motor 51 is run, second gear 22 will dally under the driving of first gear 21, output shaft 52
It not can rotate.
Output shaft 52 includes the output end 521 for output power, and output end 521 is arranged in output shaft 52 far from motor 51
Front side.
Switching system 30 includes: switch case assembly 31, trigger 32, reversing switch 33 and locking switch 34, wherein is opened
It closes in space made of the setting of case assembly 31 is surrounded in handle portion 12, trigger 32 is used for for user's operation to start motor
51, reversing switch 33 is used for the rotation direction of switch motor axis 511, tightens or unscrew screw, locking switch 34 to realize
For trigger 32 to be locked to the predeterminated position when trigger 32 moves to predeterminated position.
Specifically, the left side 111 of receiving portion 11 is also formed with left groove as shown in Fig. 1 to Fig. 3 and Fig. 6 to Fig. 8
111a, left groove 111a extend along the direction for being parallel to first axle 101, and left groove 111a is for 201 phase of thumb with user
Matching.Right side 112 is formed with right groove 112a, and right groove 112a also extends along the direction for being parallel to first axle 101, right recessed
Slot 112a is used to match with the index finger 202 of user.Trailing flank 113 is formed with rearward recess 113a, and rearward recess 113a can be connected to
Left groove 111a and right groove 112a.Rearward recess 113a enables to the hand of user to hold electricity from the trailing flank of receiving portion 11 113
Power driven tools 100.When the hand of user holds electric tool 100, the hand of rearward recess 113a and user are located at thumb 201 and index finger
Tiger's jaw 206 between 202 matches, and the thumb 201 of user is arranged in left groove 111a, and the index finger 202 of user is arranged on the right side
In groove 112a.
Furthermore, as shown in Figure 2 and Figure 9, handle portion 12, which is also formed with, is used for so that trigger 32 exposes to shell
Opening 121 except body 10.Trigger 32 can be that axis is spindle rotationally arranged at opening 121 with third axis 103, that is to say
Say, it is the rotation connection of axis that trigger 32 and handle portion 12, which are constituted with third axis 103, the third axis 103 also with output
The first axle 101 that axis 52 rotates is mutually perpendicular to.The upside of trigger 32 is arranged in reversing switch 33, and reversing switch 33 passes through
The opening 121 is extend out to except shell 10.Reversing switch 33 specifically includes: interconnecting piece 331 and operation portion 332.Interconnecting piece 331 with
The switch composition rotation connection of case assembly 31, the axis and the first of the rotation of output shaft 52 that junction is rotated relative to switch case assembly 31
Axis 101 is mutually perpendicular to, and one end of interconnecting piece 331 be connected directly to switch case assembly 31 on, the other end of interconnecting piece 331 with
Operation portion 332 connects.Operation portion 332 is located at the outside of shell 10, and operation portion 332 is used for for user's operation, operation portion 332 and company
Socket part 331 is integrally formed.
A lug boss 116 is also downwardly extending on the downside 115 of receiving portion 11, lug boss 116 is close to handle
Portion 12 is formed by 121 setting of opening, and furthermore, the edge of opening 121 is arranged in lug boss 116.The formation of lug boss 116
There are a supporting surface 116a, supporting surface 116a to be used to support the middle finger 203 of hand of the user when holding electric tool 100.On edge
It is parallel on the direction of first axle 101, lug boss 116 is arranged between the output end 521 of output shaft 52 and trigger 32.
In this way, the thumb 201 of user is placed in left groove 111a, index finger when user holds the electric tool 100
202 are placed in right groove 112a, and the finger tip 203a setting of middle finger 203 is formed by supporting surface 116a in lug boss 116, nothing
Name refer to 204 and little finger of toe 205 contacted with trigger 32, so that user more stable can comfortably hold the electric tool 100, into
And make the shape of complete machine that the design for more meeting ergonomics is set.Furthermore, it is contemplated that opening 121 is arranged in lug boss 116
Edge and reversing switch 33 also pass through opening 121, in this way, user when holding electric tool 100, is supported face 116a branch
The middle finger 203 of support can easily be triggered to the operation portion 332 of reversing switch 33, so as to realize singlehanded starting motor 51
Purpose.
The supporting surface 116a of lug boss 116 forward lower section, in other words, supporting surface 116a is in one and first axle
Extend in the plane of 101 inclination intersections, in this way, the downside 115 of supporting surface 116a and receiving portion 11 constitutes a step structure
117, such user finger tip 203a of the middle finger 203 of user hand when holding electric tool 100 can be placed on step structure
At 117, to play relatively good supporting role to the hand of user.
More specifically, shell 10 is symmetrical arranged about a split by first axle 101, and output shaft 52 also closes
It is symmetrical arranged in the split, the third axis 103 that split is also rotated with trigger 32 is mutually perpendicular to.In order to user's
Palmistry matching, as shown in Figure 10, lug boss 116 along perpendicular to first axle 101 and be parallel to split direction on ruler
Very little L1 is more than or equal to 4mm and is less than or equal to 10mm.The middle finger for the support user for both having enabled lug boss 116 more stable in this way
203 finger tip 203a, and the middle finger 203 of user can also be facilitated to move down operation reversing switch 33.
The receiving portion 11 of shell 10 substantially extends along 101 direction of first axle, the handle portion 12 of shell 10 along with first axle
The direction of the inclination intersection of line 101 extends.The one end of handle portion 12 far from receiving portion 11 can also be formed for combining battery pack
Engaging portion 122.It is additionally provided in receiving portion 11 for giving motor 51 cooling fan 54, fan 54 is fixedly installed to motor shaft
To rotate synchronously with motor shaft 511 on 511, fan 54 is specifically as follows centrifugal fan 54.The receiving portion 11 of shell 10 is also
It is formed with the air inlet 13 and air outlet 14 for being connected to inside and outside shell 10, the trailing flank of receiving portion 11 is arranged in air inlet 13
113, the downside 115 of receiving portion 11 is arranged in air outlet 14, and air inlet 13 and air outlet 14 are also separately positioned on motor 51
The upper side and lower side.In this way, can generate in shell 10 from air inlet 13 when fan 54 rotates and enter accommodating chamber 11a, then flow
Through motor 51, the radiating airflow outside shell 10 is finally flowed out to from air outlet 14.Along 101 direction of first axle, protrusion
Portion 116 is formed by supporting surface 116a and is also located between trigger 32 and air outlet 14, and such user is holding electric tool
When 100, the higher radiating airflow of heat flowed out from air outlet 14 will not be blown in being arranged in from supporting surface 116a of user
Refer to 203, to improve the use feel of user.
In the present embodiment, the specific structure of air outlet 14 includes: the airflow channel 141 being connected to inside and outside shell 10.Such as figure
4, shown in Figure 11 and Figure 12, airflow channel 141 includes the air-flow inlet port for being located at both ends on the extending direction of itself
141a and air-flow outflux 141b.One end inside the close shell 10 of airflow channel 141, gas is arranged in air-flow inlet port 141a
Entrance 141a is flowed into towards 10 interior open of shell so that radiating airflow to be introduced in airflow channel 141.Air-flow outflux 141b
One end outside the close shell 10 of airflow channel 141 is set, and air-flow outflux 141b is towards 10 external open of shell to incite somebody to action
Radiating airflow in airflow channel 141 is exported to shell 10.It is parallel on the direction of first axle 101 on edge, lug boss
116, which are formed by supporting surface 116a, is also located between trigger 32 and air-flow outflux 141b, furthermore, air-flow outflow
Mouth the distance between 141b and supporting surface 116a also greater than equal to 8mm and are less than or equal to 15mm, are enabled in this way from air-flow stream
The radiating airflow of outlet 141b outflow will not blow to the middle finger 203 of user as far as possible.
Along being parallel on 101 direction of first axle, fan 54 is arranged in the first axial position, and air-flow inlet port 141a is set
It sets in the first axial position, so gentle axial position for flowing into entrance 141a of fan 54 is identical, hence for centrifugal wind
For fan 54, the radiating airflow thrown away through passing through fan 54 can be entered to directly in airflow channel 141 from air-flow inlet port 141a.
Along being parallel on 101 direction of first axle, second axis different from 101 position of first axle is arranged in air-flow outflux 141b
To position, so that the position on being parallel to 101 direction of first axle air-flow outflux 141b and air-flow inlet port 141a is wrong
It opens, and then the radiating airflow flowed out from air-flow outflux 141b can be made further far from handle portion 12 and lug boss
116, and then improve the use feel of user.Air-flow outflux 141b is additionally arranged at the defeated of air-flow inlet port 141a and output shaft 52
Between outlet 521, in other words, the front side of air-flow inlet port 141a is arranged in air-flow outflux 141b, so that from air-flow
The radiating airflow of outflux 141b is in the front side flow far from handle portion 12.
Specifically, airflow channel 141 further includes the inclination extended along the direction intersected with the inclination of 101 direction of first axle
Section 141c, tilting section 141c further include the guide part 141d connecting with air-flow outflux 141b, and guide part 141d is oriented to from air-flow
The radiating airflow of outflux 141b outflow is at least partly towards front side flow, in such manner, it is possible to further guarantee radiating airflow not
The hand that user holds electric tool 100 can be blowed to.
As shown in Figure 13 and Figure 14, transmission component 20 further include: the first biased element 24, first biased element 24 is to defeated
Shaft 52 applies so that the biasing force that output shaft 52 travels forward.In this way, when user needs to squeeze into screw in the workpiece such as wall
When, as long as supporting electric tool 100 on workpiece, at this moment workpiece, which can apply one to output shaft 52, makes output shaft 52 along first
The driving force that 101 direction of axis moves backward, the driving force clutch part 23 to be moved to couple with second gear 22
Couple state, so that at this moment output shaft 52 will be that axis rotate driving screw is squeezed into workpiece with first axle 101；And works as and use
When family needs to play next screw, electric tool 100 leaves workpiece, and workpiece no longer applies driving force to output shaft 52, and at this moment the
One biased element, 24 bias output shaft 52 travels forward, so that clutch part 23 can move forward to and the second tooth with output shaft 52
The position that wheel 22 is detached from, output shaft 52 at this time no longer rotate, and at this moment facilitate the good next screw of user setting.
The output end 521 of output shaft 52 is also formed with the slot 521a for inserting working accessory 55, sets in slot 521a
It is equipped with the ball 522 for working accessory 55 to be locked to output shaft 52, is further sleeved with bushing 523 on the outside of output shaft 52.Bushing 523
It constitutes with output shaft 52 along being slidably connected for 101 direction of first axle is parallel to, bushing 523 is sliding along 101 direction of first axle
The latched position for making ball 522 lock working accessory 55 can be slid into when dynamic, bushing 523 along 101 direction of first axle when sliding
The releasing position for making ball 522 discharge working accessory 55 can also be slid into.It is additionally provided with and is used between bushing 523 and output shaft 52
The second biased element 524 that bias bushing 523 is moved towards latched position.In the present embodiment, the second biased element 524 is specific
Bushing 523 is supported for one end, the other end supports the helical spring of output shaft 52.In this way, when user needs to pacify working accessory 55
When being filled in slot 521a, user, which can operate bushing 523, makes it be moved to releasing position with respect to output shaft 52, at this moment ball 522
Position be released, working accessory 55 can be inserted into slot 521a by user, then user unclamp bushing 523, second partially
Pressure 524 driving lining 523 of element is reset to latched position, so that ball 522 locks position of the working accessory 55 in slot 521a.
In the present embodiment, the biasing force that the first biased element 24 is applied to output shaft 52 is greater than the second biased element 524 and is applied to lining
The biasing force of set 523.In this way, when user is in slide bushing 523, work of the output shaft 52 in the biasing force of the first biased element 24
It is kept fixed with lower position, to facilitate the operation of user.
As shown in Figure 15 and Figure 16, switch case assembly 31 specifically includes: box body 311, circuit board 312 and push rod 313, box body
311 are arranged in handle portion 12, and circuit board 312 is arranged in box body 311, and push rod 313 and box body 311 are constituted along first straight line
104 directions are slidably connected, and the third axis 103 that 104 direction of first straight line of the sliding of push rod 313 and trigger 32 rotate
Direction is mutually perpendicular to.In the present embodiment, driving of the push rod 313 also by trigger 32, when user's operation trigger 32
With third axis 103 be axis rotate when, trigger 32 will driving push rod 313 with respect to box body 311 slide, thus at this moment circuit
Plate 312 controls motor 51 and starts.Wherein, in order to be adapted to trigger 32, one end of the separate box body 311 of push rod 313 is also set
It is equipped with installation set 314, installation set 314 is formed with the arcwall face 314a for contacting with trigger 32, furthermore, the arc
Shape face 314a is arc surface, in this way, trigger 32 is to installation set when trigger 32 is that axis rotates with third axis 103
314 abrasion is smaller.Installation set 314 is also constituted with push rod 313 and is detachably connected in the present embodiment.In this way, in the present invention
Electric tool 100 can use existing common switch case assembly 31, in existing common switch case assembly 31, push rod
313 one end far from box body 311 are a planes, but for the trigger of rotary type 32, after prolonged use,
Trigger 32 can cause certain abrasion to the plane of push rod 313, to influence the essence of the contact with push rod 313 of trigger 32
Degree, and after installation set 314 is set on push rod 313 in the present invention, it can not only allow the present invention using existing switch
Case assembly 31 has saved cost, but also can reduce the abrasion to push rod 313, improves the service life of electric tool 100.
Trigger 32 specifically includes the contact surface 321 for contacting with the third finger 204 of user and little finger of toe 205, contact
Extend in the plane that face 321 is intersected at one with the inclination of first axle 101, and when trigger 32 is not triggered by user, connects
The angle that plane and first axle 101 where contacting surface 321 are crossed to form is more than or equal to 45 degree and is less than or equal to 70 degree.Contact surface
The third axis 103 that plane where 321 is also rotated with trigger 32 is parallel to each other, and contact surface 321 is in edge and contact surface
The 321 size L2 in parallel and on the direction vertical with third axis 103 is more than or equal to 20mm and is less than or equal to 40mm, thus convenient
The gripping of user.In the present embodiment, along the direction perpendicular to first axle 101, motor shaft 511 is additionally arranged at output shaft
Between 52 and trigger 32, in other words, motor 51 and output shaft 52 be on the direction perpendicular to first axle 101 successively
It is arranged, entire electric tool 100 can be reduced in this way in the size on 101 direction of first axle.
The downside of lug boss 116 is arranged in the operation portion 332 of reversing switch 33, and is parallel to first axle 101 on edge
On direction, operation portion 332 is also located between supporting surface 116a and trigger 32, in this way, when user holds electric tool 100
When, the middle finger 203 that user is placed on supporting surface 116a can be in the case where the hand of user depart from electric tool 100 directly
Trigger action portion 332.Reversing switch 33 and switch case assembly 31 are constituted and are rotatablely connected, the opposite switch case assembly 31 of reversing switch 33
Axis of the axis of rotation also with the rotation of 32 opposite handle portion 12 of trigger is mutually perpendicular to.
Locking switch 34 is slidably connected with the composition of shell 10, and on the extending direction along handle portion 12, trigger 32 is also
It is arranged between locking switch 34 and engaging portion 122, so that locking switch 34 of the invention is not located at handle portion 12
Upper but setting is in receiving portion 11, in this way, user can be operated by relatively active thumb 201, index finger 202 etc.
Locking switch 34.
Along split is parallel to and perpendicular on the direction of first axle 101, locking switch 34 is additionally arranged at output shaft
Between 52 and trigger 32, furthermore, locking switch 34 is additionally arranged between output shaft 52 and operation portion 332, more into
For one step, locking switch 34 is also located between motor shaft 511 and trigger 32；And first axle 101 is parallel on edge
On direction, the ipsilateral of operation portion 332 is arranged in locking switch 34 and trigger 32；And perpendicular to first axle 101 and hang down
Directly on the direction of third axis 103, locking switch 34 is arranged between first axle 101 and third axis 103.In this way, working as
When user holds the electric tool 100, the thumb 201 or index finger 202 of user can trigger the locking switch 34 and be pulled with locking
The position of machine switch 32.Still further, locking switch 34 is arranged on the left side 111 of receiving portion 11, and locking switch
34 are additionally arranged on left side 111 and enable to the user region that thumb 201 can touch when holding electric tool 100
It is interior.In this way, the thumb 201 of user can be the case where hand depart from electric tool 100 when user holds electric tool 100
It is lower directly to trigger locking switch 34, to facilitate the operation of user.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the above embodiments do not limit the invention in any form, all obtained by the way of equivalent substitution or equivalent transformation
Technical solution is fallen within the scope of protection of the present invention.
Claims (18)
1. a kind of electric tool, comprising:
Output shaft, including the output end for output power；
Motor, for driving the output shaft to rotate by axis of first axle；
Shell, for accommodating the motor；
Trigger, for starting the electric tool for user's operation；
Wherein, the shell includes:
Receiving portion is formed with the accommodating chamber for the motor to be arranged；
Handle portion, for being held for user；
Described accommodation section includes:
The left side and right side being oppositely arranged；
Trailing flank far from the output shaft；
The upper side being oppositely arranged and downside；
The downside behind described accommodation section is arranged in the handle portion；The trigger and the handle portion composition activity connect
It connects；The downside has been downwardly extending lug boss, and the lug boss is included in support when user holds the electric tool
The supporting surface of the middle finger of user；Along being parallel on the direction of the first axle, the supporting surface be located at the output end with
Between the trigger.
2. electric tool according to claim 1, it is characterised in that:
When user holds the electric tool, the finger tip of the middle finger of user is arranged on the support surface.
3. electric tool according to claim 1, it is characterised in that:
The left side is formed in the left groove for being disposed therein thumb when user holds the electric tool.
4. electric tool according to claim 1, it is characterised in that:
The right side is formed in the right groove for being disposed therein index finger when user holds the electric tool.
5. electric tool according to claim 1, it is characterised in that:
The trailing flank is formed with when user holds the electric tool and the tiger's jaw between thumb and index finger of user
The rearward recess to match.
6. electric tool according to claim 1, it is characterised in that:
The electric tool further include:
Fan is arranged in the accommodating chamber；
The shell is formed with:
Air flow inlet is connected to the inside and outside of the shell；
Air stream outlet is connected to the inside and outside of the shell；
In fan rotation, the air flow inlet is produced from into the shell in the shell and then is gone out from the air-flow
Mouth flows out the radiating airflow of the shell；
Along being parallel on the first axle direction, the supporting surface be located at the trigger and the air stream outlet it
Between.
7. electric tool according to claim 1, it is characterised in that:
When user holds the electric tool, the third finger and little finger of toe of user is contacted with the trigger.
8. electric tool according to claim 1, it is characterised in that:
The trigger include when user holds the electric tool with the contact of the nameless and small abutment of user
Face；
Extend in the plane that the contact surface intersects at one with first axle inclination.
9. electric tool according to claim 8, it is characterised in that:
The motor further includes the motor shaft that can be rotated using second axis as axis；
Along direction perpendicular to the first axle, the motor shaft setting the output shaft and the trigger it
Between.
10. electric tool according to claim 1, it is characterised in that:
The electric tool further include:
Case assembly is switched, is arranged in space made of being surrounded in the handle portion；
Reversing switch is connect with the switch case assembly；
The reversing switch includes the operation portion extending out to except the shell for user's operation；
The operating position is in the downside of the lug boss.
11. electric tool according to claim 10, it is characterised in that:
Along being parallel on the direction of the first axle, the operating position in the supporting surface and the trigger it
Between.
12. electric tool according to claim 1, it is characterised in that:
Extend in the plane that the supporting surface intersects at least partially in one with first axle inclination.
13. electric tool according to claim 1, it is characterised in that:
The downside of the supporting surface and described accommodation section constitutes a step structure.
14. electric tool according to claim 1, it is characterised in that:
The motor further includes the motor shaft that can be rotated using second axis as axis；
Along direction perpendicular to the first axle, the motor shaft setting the output shaft and the trigger it
Between；
The output shaft is symmetrical arranged about one by the first axle and the split Jing Guo the second axis；It is described
Lug boss is along perpendicular to the first axle and the size that is parallel on the direction of the split is more than or equal to 4mm and is less than
Equal to 10mm.
15. electric tool according to claim 1, it is characterised in that:
The trigger and handle portion composition can be using third axis as the rotation connection of axis.
16. electric tool according to claim 15, it is characterised in that:
The trigger is mutually perpendicular to relative to the third axis that the handle portion rotates with the first axle.
17. electric tool according to claim 1, it is characterised in that:
The motor shaft forms or is connected with first gear, and the electric tool further includes engaging with first gear composition
Second gear, the output shaft is fixedly connected with clutch part；The output shaft is also constituted with the shell along the first axle
Line direction is slidably connected, and when the output shaft is slided along the first axle, the clutch part at least has and described
The couple state of two Gear Contacts and the non-coupled state being detached from the second gear.
18. electric tool according to claim 17, it is characterised in that:
The slot for being inserted into working accessory is formed with inside the output shaft；
The electric tool further include:
First biased element generates the biasing force that a driving output shaft travels forward；
Ball, for the working accessory to be locked in the slot；
Bushing, is sleeved on the outside of the output shaft and the sliding constituted with the output shaft along the first axle direction connects
It connects, the bushing, which can also at least slide into when sliding along the first axle direction, makes the ball lock the working accessory
Latched position and the releasing position for making the ball discharge the working accessory；
Second biased element generates the biasing force that a driving bushing is moved towards the latched position；
Wherein, the biasing force that first biased element is applied to the output shaft is greater than second biased element and is applied to institute
State the biasing force of bushing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711232186.3A CN109848926B (en) | 2017-11-30 | 2017-11-30 | Electric tool |
| DE202018105394.9U DE202018105394U1 (en) | 2017-11-30 | 2018-09-20 | power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711232186.3A CN109848926B (en) | 2017-11-30 | 2017-11-30 | Electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109848926A true CN109848926A (en) | 2019-06-07 |
| CN109848926B CN109848926B (en) | 2022-01-04 |
Family
ID=64109328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711232186.3A Active CN109848926B (en) | 2017-11-30 | 2017-11-30 | Electric tool |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109848926B (en) |
| DE (1) | DE202018105394U1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706043A (en) * | 2019-10-25 | 2021-04-27 | 南京德朔实业有限公司 | Electric tool |
| CN113910171A (en) * | 2020-07-09 | 2022-01-11 | 施耐宝公司 | Ergonomic housing for a power tool |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300347B (en) * | 2018-12-12 | 2023-11-07 | 喜利得股份公司 | reciprocating saw |
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| US20030066666A1 (en) * | 2001-10-10 | 2003-04-10 | Etter Mark Alan | Belt clip for hand-held power tools |
| CN101058178A (en) * | 2001-10-26 | 2007-10-24 | 布莱克-德克尔公司 | Drilling and / or hammering tool |
| CN201711952U (en) * | 2009-02-24 | 2011-01-19 | 布莱克和戴克公司 | Ergonomical handle for power tool |
| CN104440802A (en) * | 2013-09-18 | 2015-03-25 | 罗伯特·博世有限公司 | Handheld tool machine |
| CN204748551U (en) * | 2014-04-10 | 2015-11-11 | 株式会社牧田 | Electric tool |
| CN106393007A (en) * | 2015-07-31 | 2017-02-15 | 南京德朔实业有限公司 | Torque output tool and accessory device thereof |
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2017
- 2017-11-30 CN CN201711232186.3A patent/CN109848926B/en active Active
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2018
- 2018-09-20 DE DE202018105394.9U patent/DE202018105394U1/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030066666A1 (en) * | 2001-10-10 | 2003-04-10 | Etter Mark Alan | Belt clip for hand-held power tools |
| CN101058178A (en) * | 2001-10-26 | 2007-10-24 | 布莱克-德克尔公司 | Drilling and / or hammering tool |
| CN201711952U (en) * | 2009-02-24 | 2011-01-19 | 布莱克和戴克公司 | Ergonomical handle for power tool |
| CN104440802A (en) * | 2013-09-18 | 2015-03-25 | 罗伯特·博世有限公司 | Handheld tool machine |
| CN204748551U (en) * | 2014-04-10 | 2015-11-11 | 株式会社牧田 | Electric tool |
| CN106393007A (en) * | 2015-07-31 | 2017-02-15 | 南京德朔实业有限公司 | Torque output tool and accessory device thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706043A (en) * | 2019-10-25 | 2021-04-27 | 南京德朔实业有限公司 | Electric tool |
| CN113910171A (en) * | 2020-07-09 | 2022-01-11 | 施耐宝公司 | Ergonomic housing for a power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109848926B (en) | 2022-01-04 |
| DE202018105394U1 (en) | 2018-10-22 |
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