CN104779109A - Electric tool and switch mechanism thereof - Google Patents
Electric tool and switch mechanism thereof Download PDFInfo
- Publication number
- CN104779109A CN104779109A CN201410014725.6A CN201410014725A CN104779109A CN 104779109 A CN104779109 A CN 104779109A CN 201410014725 A CN201410014725 A CN 201410014725A CN 104779109 A CN104779109 A CN 104779109A
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- CN
- China
- Prior art keywords
- shift knob
- field frame
- motor field
- electric tool
- switching mechanism
- 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
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
- B24B23/028—Angle tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/26—Accessories, e.g. stops
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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 relates to a switch mechanism of an electric tool. The switch mechanism is arranged on a motor housing of the electric tool, and comprises a switch button, a sliding bar and a stop mechanism used for preventing the sliding bar from moving to the rear end of the motor housing, wherein the sliding bar is slidingly arranged in an inner side channel arranged on the motor housing, so that the sliding bar can be contacted with a trigger switch on a power supply line; the sliding bar tends to move to the rear end of the motor housing under the action of an elastic force to release pressing on the trigger switch; the switch button is mounted at the front end of the sliding bar in a pivoted manner; an elastic device is arranged between the switch button and the front end of the slender sliding bar; and the elastic device tends to allow the switch button to pivot around a longitudinal axis of the motor housing, so that one side part of the switch button is far away from the motor housing and the other side part of the switch button pushes against the motor housing. The invention further relates to the electric tool comprising the switch mechanism. According to the switch mechanism and the electric tool, a fatigue feeling of an operator can be alleviated, and the safety of the electric tool can be improved.
Description
Technical field
The present invention relates to electric tool, especially relate to the switching mechanism of electric tool and comprise the electric tool of this switching mechanism.
Background technology
The electric tool of such as sanding machine makes electric tool energising run by the shift knob of push switch mechanism in use.According to the different instructions for uses of electric tool, the switching mechanism of not locking function or the switching mechanism of locking function can be set for electric tool.Because the switching mechanism of not locking function needs operator always at full tilt according to shift knob, be easy to cause operator tired.The switching mechanism of existing locking function first must manually operate retaining mechanism to remove locking when electric tool needs power-off, and this makes electric tool can not power-off immediately as required.In addition, if electric tool is because the reason that supply of electric power is interrupted is shut down and do not discharge retaining mechanism, when again powering, electric tool can unexpectedly start.Both of these case all may cause serious safety problem.In order to avoid latter event, though can by arranging an other printed circuit board (PCB) and not being released in power supply again to guarantee retaining mechanism time electric tool can not start, thus provide and restart protection.But, the cost of this electric tool that can significantly increase.
Thus, need to improve the switching mechanism of existing electric tool.
Summary of the invention
Object of the present invention will overcome above-mentioned at least one defect of the prior art exactly, a kind of switching mechanism of electric tool is proposed, shift knob only can need be held in place with very little power by the switching mechanism of this electric tool, and just can make electric tool power-off at once once the pressing of unclamping shift knob.In addition, even if electric tool is because accidental cause supply of electric power is powered after interrupting again, electric tool also can not unexpectedly start, thus significantly improves the fail safe of electric tool.
For this reason, according to an aspect of the present invention, provide a kind of switching mechanism of electric tool, described switching mechanism is arranged on the motor field frame of described electric tool, and described switching mechanism comprises:
Shift knob; And
Elongated sliding shaft;
Wherein, described elongated sliding shaft is slidably disposed in the inner channel on described motor field frame, the afterbody of described elongated sliding shaft can be contacted with the trigger switch in the supply line in described motor field frame, and described elongated sliding shaft is always tending towards moving to the rear end of described motor field frame making described afterbody to unclamp pressing to described trigger switch in the presence of a tensile force;
Described shift knob is partially across the opening on described motor field frame and be pivotally mounted on the front end of described elongated sliding shaft, elastic device is provided with between described shift knob and the front end of described elongated sliding shaft, described elastic device is always tending towards the axis pivotable making described shift knob around the longitudinal direction along described motor field frame, makes described shift knob sidepiece away from the other side of described motor field frame and described shift knob against described motor field frame; And
Stop described elongated sliding shaft to the stop mechanism of the rear end movement of described motor field frame when pressing described shift knob.
Preferably, described elongated sliding shaft rear end be tending towards to described motor field frame under the effect being arranged at the Compress Spring between described elongated sliding shaft and described motor field frame is moved.
Preferably, the main part of described elongated sliding shaft is formed with the second projection of columniform first projection and L shape, the other end that described first projection penetrates one end of described Compress Spring, described second projection penetrates described Compress Spring, and make the other end of described Compress Spring also against described motor field frame.
Preferably, described elastic device be arranged on described shift knob and described elongated sliding shaft front end between helical torsion spring.
Preferably, described sliding bar comprises flat main part, described afterbody is arranged deviously relative to described main part, the described front end of described main part is formed with opening, the basal surface of the main part of described shift knob is formed with lug, described lug passes the opening on described motor field frame and extends in the opening on described sliding bar, thus is pivotally mounted on described elongated sliding shaft by described shift knob.
Preferably, described shift knob is pivotally mounted on described elongated sliding shaft by means of the pivot through the through hole on the front end of described sliding bar and described lug.
Preferably, described afterbody is arranged relative to described main part vertical curve.
Preferably, described elastic device be arranged on described shift knob and described elongated sliding shaft front end between helical torsion spring, one end of described helical torsion spring is against the basal surface of described shift knob, and the other end of described helical torsion spring is against described sliding bar.
Preferably, the opening of described motor field frame is formed as the first bearing-surface with the bottom wall portion of the described corresponding side of sidepiece of described shift knob, the opening of described motor field frame is formed as the second bearing-surface with the opposing bottom wall part of the described corresponding side of another sidepiece of described shift knob, described stop mechanism comprises the protuberance on the basal surface of the recess be formed on described first bearing-surface and the described sidepiece being formed in described shift knob accordingly, when described shift knob is in on-position, described protuberance can be pressed in described recess.
Preferably, the opening of described motor field frame is formed as the first bearing-surface with the bottom wall portion of the described corresponding side of sidepiece of described shift knob, the opening of described motor field frame is formed as the second bearing-surface with the opposing bottom wall part of the described corresponding side of another sidepiece of described shift knob, second bearing-surface is formed with outstanding retainer, the basal surface of another sidepiece described of described shift knob is formed with the recess leading to front end accordingly, when described shift knob is in open position, described outstanding retainer can engage with described recess to prevent described shift knob from unexpectedly being moved to on-position.
Preferably, described second bearing-surface is formed with outstanding retainer, the basal surface of another sidepiece described of described shift knob is formed with the recess leading to front end accordingly, and when described shift knob is in open position, described outstanding retainer can engage with described recess to prevent described shift knob from unexpectedly being moved to on-position.
Preferably, the aft bulkhead of the described protuberance on described shift knob forms the inclined wall tilted towards described protuberance front end, and the aft bulkhead of the described recess on described motor field frame is formed as the inclined wall corresponding with the described aft bulkhead on described shift knob.
Preferably, the parameatal wall of described motor field frame is recessed to form the cavity of the main part for laying described shift knob in described around openings.
Preferably, described electric tool is sanding machine or electric saw.
According to an aspect of the present invention, provide a kind of electric tool, described electric tool comprises switching mechanism as above.
According to the present invention, at pull switch button along the longitudinal and push switch button makes after its pivot around longitudinal direction rotates, only need very little power shift knob can be held in place, alleviate the sense of fatigue of operator, and just can make electric tool power-off at once once the pressing of unclamping shift knob.In addition, even if electric tool is because accidental cause supply of electric power is powered after interrupting again, electric tool also can not unexpectedly start, thus significantly improves the fail safe of electric tool.
Accompanying drawing explanation
Fig. 1 is the stereogram of the electric tool with switching mechanism according to the preferred embodiment of the invention;
Fig. 2 is the stereogram of the motor field frame of the electric tool that switching mechanism is according to the preferred embodiment of the invention housed;
Fig. 3 is the exploded perspective view of the motor field frame of the electric tool that switching mechanism is according to the preferred embodiment of the invention housed;
Fig. 4 is the stereogram of the motor field frame in Fig. 3;
Fig. 5 is the stereogram of the shift knob in Fig. 3;
Fig. 6 is another stereogram of the shift knob in Fig. 3;
Fig. 7 is the stereogram of the sliding bar in Fig. 3;
Fig. 8 is longitudinally by the partial schematic sectional view of shift knob and bearing pin along motor field frame;
Fig. 9 is the stereogram of the motor field frame of the electric tool that switching mechanism is according to the preferred embodiment of the invention housed, and wherein a part for motor field frame and shift knob is cut;
Figure 10 is along the partial schematic sectional view of motor field frame laterally across the recess on shift knob and motor field frame;
Figure 11 is along another partial schematic sectional view laterally across the extension in the opening on shift knob and sliding bar of motor field frame;
Figure 12 is longitudinally by another partial schematic sectional view of the first protuberance on shift knob and motor field frame along motor field frame;
Figure 13 is that wherein shift knob is in the on-state be pushed along the cross-sectional schematic of motor field frame laterally across the recess on the first bearing-surface on the protuberance on shift knob and motor field frame; And
Figure 14 is longitudinally by the another partial schematic sectional view of shift knob along motor field frame.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with example.It will be understood by those skilled in the art that these exemplary embodiments and do not mean that and any restriction is formed to the present invention.
Relate to front and back position or direction in this application, wherein " front " refers to " cutter " one end near electric tool, after then refer near the contrary other end.
Fig. 1 is the stereogram of the electric tool with switching mechanism according to the preferred embodiment of the invention.Although electric tool 1 is shown as sanding machine in FIG, be understood that can be other electric tool any, such as electric saw.As shown in Figure 1, sanding machine comprises motor field frame 3, the motor be arranged in motor field frame 3, the gear housing 5 being positioned at motor field frame 3 front end, the transmission mechanism 7 being positioned partially at gear housing 5, the mill 9 be connected with transmission mechanism 7, is arranged on the protective cover 11 around mill 9, the auxiliary handle 13 be arranged in gear housing 5, the switching mechanism 15 be arranged on motor field frame 3, the tail-hood 17 being positioned at motor field frame 3 rear end and the cable 19 stretched out through tail-hood 3.
Fig. 2 is the stereogram of the motor field frame of the electric tool that switching mechanism is according to the preferred embodiment of the invention housed, and Fig. 3 is the exploded perspective view of the motor field frame of the electric tool that switching mechanism is according to the preferred embodiment of the invention housed.As shown in Figures 2 and 3, the switching mechanism 15 be arranged on motor field frame 3 comprises shift knob 21 and elongated sliding shaft 23 L-shaped substantially.Certainly, elongated sliding shaft 23 also can be other suitable shape any.
Fig. 4 is the stereogram of the motor field frame in Fig. 3.As shown in Figures 2 and 4, motor field frame 3 is preferably formed with opening 301 in its front position, the motor case body wall near opening 301 is preferably slightly recessed, makes around opening 301, form a cavity 303.Cavity 303 at least has diapire 305 and the end wall 307 near motor field frame 3 front end.Be formed as the first bearing-surface 309 at the bottom wall portion of opening 301 side, the opposing bottom wall part being positioned at opening 301 opposite side is formed as the second bearing-surface 311.Preferably, the first bearing-surface 309 is formed with recess 313.Preferably, the second bearing-surface 311 is formed with outstanding retainer 315.In addition, motor field frame 3 is also formed and extends to front end and the inner channel 317 communicated with opening 301 from tail end, for holding sliding bar 23 slidably.
Fig. 5 is the stereogram of the shift knob in Fig. 3, and Fig. 6 is another stereogram of the shift knob in Fig. 3.As illustrated in Figures 5 and 6, shift knob 21 is formed with the lug 2105 of a pair isolated band through hole 2103 on the basal surface 2101 of its main part.Certainly, it is also feasible for the basal surface 2101 of shift knob 21 only forming a lug.Preferably, corresponding with the first bearing-surface 309 on motor field frame 3 on basal surface 2101 side is formed with protuberance 2107.Preferably, corresponding with the second bearing-surface 311 on motor field frame 3 on basal surface 2101 side is formed with the recess 2109 leading to front end.The upper surface 2111 of shift knob 21 can be formed with the alternate uneven surface of convex-concave.
Fig. 7 is the stereogram of the sliding bar in Fig. 3.As shown in figs. 2 and 7, sliding bar 23 comprises substantially flat main part 2301 and the afterbody 2303 relative to main part 2301 preferably vertical curve.The front end 2305 of main part 2301 is formed with opening 2307, the end walls of opening 2307 is formed with through hole 2309.The middle part of main part 2301 is also formed with the second projection 2311 of columniform first projection 2310 and cardinal principle L shape.In addition, the sidewall of opening 2307 is also formed with the extension 2313 extended inward into.
As shown in Fig. 2,3 and 8, at assembled state, sliding bar 23 is positioned at motor field frame 3, the front end 2305 of main part 2301 is positioned at the position corresponding with the opening 301 on motor field frame 3 substantially, and the afterbody 2303 of sliding bar 23 contacts with the trigger switch 25 in motor field frame 3 between motor and cable 19.The second projection 2311 penetrated on one end of Compress Spring 27, main part 2301 of the first projection 2310 on main part 2301 penetrates the other end of Compress Spring 27, and makes the other end of Compress Spring 27 be resisted against on motor field frame 3 simultaneously.Compress Spring 27 is always tending towards the rear end of sliding bar 23 towards motor field frame 3 to move.A pair lug 2105 of shift knob 21 passes the opening 301 on motor field frame 3 and inserts in the opening 2307 on main part 2301, and makes in the cavity 303 of the main body section of shift knob 21 on motor field frame 3.Helical torsion spring 29 is arranged between a pair lug 2105, and make helical torsion spring 29 end have the side of protuberance 2107 against the basal surface 2101 of shift knob 21, another end is against the extension 2313 on the sidewall of the opening 2307 of sliding bar 23.Bearing pin 31 through the through hole 2103 on another lug 2105 of another through hole 2309 on the main part 2301 of the through hole 2103 on a lug 2105 of a through hole 2309 on the main part 2301 of sliding bar 23, shift knob 21, helical torsion spring 29, sliding bar 23 and shift knob 21, thus by shift knob installation in position.As a result, shift knob 21 always can be tending towards basal surface 2101 have the side of protuberance 2107 away from the first bearing-surface 309 on motor field frame 3 around bearing pin 31 pivotable under the effect of helical torsion spring 29.
Fig. 9 is the stereogram of the motor field frame of the electric tool that switching mechanism is according to the preferred embodiment of the invention housed, and wherein a part for motor field frame and shift knob is cut.Figure 10 is along the partial schematic sectional view of motor field frame laterally across the recess on shift knob and motor field frame.Figure 11 is along another partial schematic sectional view laterally across the extension in the opening on shift knob and sliding bar of motor field frame.As shown in figs. 9-11, when not pushing shift knob 21, under the effect of Compress Spring 27, in the opening 301 of shift knob 21 on motor field frame 3, moved to by sliding bar 23 open position held rearward; Simultaneously, under the effect of helical torsion spring 29, shift knob 21, around bearing pin 31 pivotable, makes the first sidepiece 2115 of shift knob 21 away from the first bearing-surface 309 on motor field frame 3, and the second sidepiece 2117 of shift knob 21 is against the second bearing-surface 311 on motor field frame 3.Now, the outstanding retainer 315 on the second bearing-surface 311 on motor field frame 3 is received in the recess 2109 on the basal surface 2101 of the second sidepiece 2117 being arranged in shift knob 21, as shown in figure 12.Due to the recess 2109 on the wall of the outstanding retainer 315 on the second bearing-surface 311 and the basal surface 2101 of shift knob 21 wall mutually against, which prevent the movement of shift knob 21 towards the front end of motor field frame 3, thus can prevent electric tool from unexpectedly being started under external force.
When needs start electric tool, operator overcomes the downward push switch button 21 of twisting resistance of helical torsion spring 29, shift knob 21, around bearing pin 31 pivotable, makes the basal surface of the second sidepiece 2117 of shift knob 21 away from the second bearing-surface 311 on motor field frame 3.When outstanding retainer 315 on the second bearing-surface 311 departs from the recess 2109 on the basal surface 2101 of shift knob 21 completely, operator also applies longitudinal thrust along the longitudinal of motor field frame to shift knob 21.Under the force action of pressure and longitudinal thrust, first bearing-surface 309 of the protuberance 2107 on the basal surface 2101 of the first sidepiece 2115 of shift knob 21 on motor field frame 3 and sliding along it.When end wall 307 close to the cavity 303 on motor field frame 3 of the front end face 2113 of shift knob 21, the protuberance 2107 on shift knob 21 is against motor field frame 3 upper recess 313, and shift knob 21 moves to on-position from open position.Now, along with the afterbody 2303 of the sliding bar 23 of shift knob 21 together movement pushes trigger switch 25, make supply line's conducting of leading to motor, thus electric tool is brought into operation.Continue push switch button 21, the protuberance 2107 on shift knob 21 is pressed in the recess 313 on motor field frame 3 completely, and protuberance 2107 and recess 313 define the stop mechanism stoping sliding bar 23 to the rear end movement of motor field frame 3.Like this, shift knob 21 can be kept in place under slight pressing force effect.
Once unclamp the pressing to shift knob 21, shift knob 21 at once just moves to open position from on-position under the effect of helical torsion spring 29, Compress Spring 27 and trigger switch 25, thus make trigger switch 25 disconnect supply line, finally make electric tool out of service at once.Skid off swimmingly from the recess 313 motor field frame 3 for the ease of the protuberance 2107 on shift knob 21, the aft bulkhead 2119 of the protuberance 2107 on shift knob 21 forms the inclined wall tilted towards protuberance front end, and the aft bulkhead 319 of the recess 313 on motor field frame 3 is formed as corresponding inclined wall.
In addition, shift knob 21 can be formed as elongated shape, so that operator also can switch on/off electric instrument easily when grasping the middle part of motor field frame or rear portion.
If trigger switch 25 is the trigger switches that automatically reset with back-moving spring, the back-moving spring of trigger switch 25 also can make elongated sliding shaft 23 move to the rear end of motor field frame 3, thus can omit Compress Spring 27.In addition, although switching mechanism is provided with helical torsion spring 29 in a preferred embodiment, it should be understood that and adopt sheet spring, cushion or other elastic device to be also feasible.
In a preferred embodiment, shift knob 21 is installed to elongated sliding shaft 23 by means of independent pivot 31, but it should be understood that pivot 31 can be integrally formed with shift knob 21.
In a preferred embodiment, protuberance 2107 is formed on the basal surface 2101 of shift knob 21, recess 313 is formed on the first bearing-surface 309 on motor field frame 3, but it should be understood that on the basal surface 2101 that recess is formed in shift knob 21 and the first bearing-surface 309 that protuberance is formed on motor field frame 3 is also feasible.Stop sliding bar 23 also can be only form protuberance motor field frame 3 being positioned at opening 301 rear end to the stop mechanism of the rear end movement of motor field frame 3.
Below in conjunction with specific embodiments to invention has been detailed description.Obviously, above description and embodiment illustrated in the accompanying drawings all should be understood to be exemplary, and are not construed as limiting the invention.To those skilled in the art, can carry out various modification or amendment when not departing from spirit of the present invention to it, these modification or amendment all do not depart from the scope of the present invention.
Claims (15)
1. the switching mechanism (15) of an electric tool, described switching mechanism (15) is arranged on the motor field frame (3) of described electric tool, and described switching mechanism (15) comprising:
Shift knob (21); And
Elongated sliding shaft (23);
Wherein, described elongated sliding shaft (23) is slidably disposed in the inner channel (317) on described motor field frame (3), the afterbody of described elongated sliding shaft (23) (2303) can be contacted with the trigger switch (25) in the supply line in described motor field frame (3), and described elongated sliding shaft (23) is always tending towards moving to the rear end of described motor field frame (3) making described afterbody (2303) to unclamp pressing to described trigger switch (25) in the presence of a tensile force;
Described shift knob (21) is partially across the opening (301) on described motor field frame (3) and be pivotally mounted on the front end (2305) of described elongated sliding shaft (23), elastic device is provided with between described shift knob (21) and the front end (2305) of described elongated sliding shaft (23), described elastic device is always tending towards the axis pivotable making described shift knob (21) around the longitudinal direction along described motor field frame (3), make a sidepiece of described shift knob (21) away from described motor field frame (3), and the other side of described shift knob (21) is against described motor field frame (3), and
Stop described elongated sliding shaft (23) to the stop mechanism of the rear end movement of described motor field frame (3) when pressing described shift knob (21).
2. the switching mechanism (15) of electric tool according to claim 1, it is characterized in that, described elongated sliding shaft (23) moves the rear end be tending towards to described motor field frame (3) under the effect being arranged at the Compress Spring (27) between described elongated sliding shaft (23) and described motor field frame (3).
3. the switching mechanism (15) of electric tool according to claim 2, it is characterized in that, the main part (2301) of described elongated sliding shaft (23) is formed with second projection (2311) of columniform first projection (2310) and L shape, the other end that described first projection (2310) penetrates one end of described Compress Spring (27), described second projection (2311) penetrates described Compress Spring (27), and make the other end of described Compress Spring (27) also against described motor field frame (3).
4. the switching mechanism (15) of electric tool according to claim 1, is characterized in that, described elastic device be arranged on described shift knob (21) and described elongated sliding shaft (23) front end (2305) between helical torsion spring (29).
5. the switching mechanism (15) of electric tool according to claim 1, it is characterized in that, described sliding bar (23) comprises flat main part (2301), described afterbody (2303) is arranged deviously relative to described main part (2301), the described front end (2305) of described main part (2301) is formed with opening (2307), the basal surface (2101) of the main part of described shift knob (21) is formed with lug (2105), described lug (2105) is through the opening (301) on described motor field frame (3) and extend in the opening (2307) on described sliding bar (23), thus described shift knob (21) is pivotally mounted on described elongated sliding shaft (23).
6. the switching mechanism (15) of electric tool according to claim 5, it is characterized in that, described shift knob (21) is pivotally mounted on described elongated sliding shaft (23) by means of the pivot (31) through the through hole on the front end (2305) of described sliding bar (23) and described lug (2105).
7. the switching mechanism (15) of electric tool according to claim 5, is characterized in that, described afterbody (2303) is arranged relative to described main part (2301) vertical curve ground.
8. the switching mechanism (15) of electric tool according to claim 5, it is characterized in that, described elastic device be arranged on described shift knob (21) and described elongated sliding shaft (23) front end (2305) between helical torsion spring (29), an end of described helical torsion spring (29) is against the basal surface (2101) of described shift knob (21), and another end of described helical torsion spring (29) is against described sliding bar (23).
9. the switching mechanism (15) of electric tool according to claim 1, it is characterized in that, the opening (301) of described motor field frame (3) is formed as the first bearing-surface (309) with the bottom wall portion of the described corresponding side of sidepiece of described shift knob (21), the opening (301) of described motor field frame (3) is formed as the second bearing-surface (311) with the opposing bottom wall part of the described corresponding side of another sidepiece of described shift knob (21), described stop mechanism comprises the protuberance (2107) on the basal surface of the recess (313) be formed on described first bearing-surface (309) and the described sidepiece being formed in described shift knob (21) accordingly, when described shift knob (21) is in on-position, described protuberance (2107) can be pressed in described recess (313).
10. the switching mechanism (15) of electric tool according to claim 1, it is characterized in that, the opening (301) of described motor field frame (3) is formed as the first bearing-surface (309) with the bottom wall portion of the described corresponding side of sidepiece of described shift knob (21), the opening (301) of described motor field frame (3) is formed as the second bearing-surface (311) with the opposing bottom wall part of the described corresponding side of another sidepiece of described shift knob (21), second bearing-surface (311) is formed with outstanding retainer (315), the basal surface of another sidepiece described of described shift knob (21) is formed with accordingly the recess (2109) leading to front end, when described shift knob (21) is in open position, described outstanding retainer (315) can engage with described recess (2109) to prevent described shift knob (21) from unexpectedly being moved to on-position.
The switching mechanism (15) of 11. electric tools according to claim 9, it is characterized in that, described second bearing-surface (311) is formed with outstanding retainer (315), the basal surface of another sidepiece described of described shift knob (21) is formed with accordingly the recess (2109) leading to front end, when described shift knob (21) is in open position, described outstanding retainer (315) can engage with described recess (2109) to prevent described shift knob (21) from unexpectedly being moved to on-position.
The switching mechanism (15) of 12. electric tools according to claim 9, it is characterized in that, the aft bulkhead (2119) of the described protuberance (2107) on described shift knob (21) forms the inclined wall tilted towards described protuberance front end, and the aft bulkhead (319) of the described recess (313) on described motor field frame (3) is formed as the inclined wall corresponding with the described aft bulkhead (2119) on described shift knob (21).
The switching mechanism (15) of 13. electric tools according to claim 1, it is characterized in that, opening (301) wall around of described motor field frame (3) is recessed to form the cavity (303) being used for the main part laying described shift knob (21) around described opening (301).
The switching mechanism (15) of 14. electric tools according to claim 1, is characterized in that, described electric tool is sanding machine or electric saw.
15. 1 kinds of electric tools, is characterized in that, described electric tool comprises the switching mechanism (15) as above described in arbitrary claim.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014725.6A CN104779109B (en) | 2014-01-13 | 2014-01-13 | The switching mechanism and electric tool of electric tool |
| DE102015200204.7A DE102015200204A1 (en) | 2014-01-13 | 2015-01-09 | Switching means of a power tool and power tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014725.6A CN104779109B (en) | 2014-01-13 | 2014-01-13 | The switching mechanism and electric tool of electric tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104779109A true CN104779109A (en) | 2015-07-15 |
| CN104779109B CN104779109B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410014725.6A Expired - Fee Related CN104779109B (en) | 2014-01-13 | 2014-01-13 | The switching mechanism and electric tool of electric tool |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104779109B (en) |
| DE (1) | DE102015200204A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108140503A (en) * | 2016-02-12 | 2018-06-08 | 欧姆龙株式会社 | Control switch mechanism, trigger switch and electric tool |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019120363B4 (en) * | 2019-04-26 | 2020-11-12 | Defond Components Limited | AN IMPROVED EXTRACTOR WITH A PROTECTIVE COVER |
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| CN201838466U (en) * | 2010-10-22 | 2011-05-18 | 浙江皇冠电动工具制造有限公司 | Electrical tool tension bar-type switch structure |
| CN203165725U (en) * | 2013-01-17 | 2013-08-28 | 浙江皇冠电动工具制造有限公司 | Hand-held electric tool safety switch push button mechanism |
| CN203351462U (en) * | 2013-07-16 | 2013-12-18 | 浙江皇冠电动工具制造有限公司 | Power tool with external pull rod switch device |
-
2014
- 2014-01-13 CN CN201410014725.6A patent/CN104779109B/en not_active Expired - Fee Related
-
2015
- 2015-01-09 DE DE102015200204.7A patent/DE102015200204A1/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2565572Y (en) * | 2002-08-12 | 2003-08-13 | 宁波经济技术开发区中强电动工具有限公司 | Self locking device of bias cutter protective hood |
| CN2631202Y (en) * | 2003-06-27 | 2004-08-11 | 常州合力电器有限公司 | Switching controlling mechanism of electric gardening tool |
| US20080025017A1 (en) * | 2006-07-26 | 2008-01-31 | Naoki Tadokoro | Power tool equipped with light |
| CN201590351U (en) * | 2009-12-10 | 2010-09-22 | 浙江皇冠电动工具制造有限公司 | Switch structure of electric power tool |
| CN201838466U (en) * | 2010-10-22 | 2011-05-18 | 浙江皇冠电动工具制造有限公司 | Electrical tool tension bar-type switch structure |
| CN203165725U (en) * | 2013-01-17 | 2013-08-28 | 浙江皇冠电动工具制造有限公司 | Hand-held electric tool safety switch push button mechanism |
| CN203351462U (en) * | 2013-07-16 | 2013-12-18 | 浙江皇冠电动工具制造有限公司 | Power tool with external pull rod switch device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108140503A (en) * | 2016-02-12 | 2018-06-08 | 欧姆龙株式会社 | Control switch mechanism, trigger switch and electric tool |
| CN108140503B (en) * | 2016-02-12 | 2019-04-19 | 欧姆龙株式会社 | Control switch mechanism, trigger switch and electric tool |
| US10673433B2 (en) | 2016-02-12 | 2020-06-02 | Omron Corporation | Control switch mechanism, trigger switch, and electric tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104779109B (en) | 2018-08-28 |
| DE102015200204A1 (en) | 2015-07-16 |
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