CN108972458A - Hand held power machine - Google Patents
Hand held power machine Download PDFInfo
- Publication number
- CN108972458A CN108972458A CN201810538834.6A CN201810538834A CN108972458A CN 108972458 A CN108972458 A CN 108972458A CN 201810538834 A CN201810538834 A CN 201810538834A CN 108972458 A CN108972458 A CN 108972458A
- Authority
- CN
- China
- Prior art keywords
- safety element
- hand held
- held power
- power machine
- driving spindle
- 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
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Gear Transmission (AREA)
- Portable Power Tools In General (AREA)
Abstract
The present invention relates to a kind of hand held power machines (100) with transmission device (170) and gear mechanism housing (110), the hand held power machine has drive shaft (119), wherein, the drive shaft (119) is configured to driving spindle (120) and the driving spindle (120) includes at least one main shaft bearing (234).It proposes, the driving spindle (120) includes having at least one first safety element (310,315,316) at least one security unit (300,301,302), wherein, at least one described security unit (300,301,302) is configured to axially insure the driving spindle (120) and for acting on connection structure (400) with the gear mechanism housing (110) composition.
Description
Technical field
The present invention relates to a kind of hand held power machines with security unit.
Background technique
A kind of hand-held tool with transmission device and gear mechanism housing as known to 10 2,012 219 495 A1 of DE
Machine, the hand held power machine have drive shaft, wherein the drive shaft construction is driving spindle and the driving spindle includes at least
One main shaft bearing.
Summary of the invention
The present invention is from a kind of hand held power machine with transmission device and gear mechanism housing, the hand-held tool
Machine has drive shaft, wherein the drive shaft construction is driving spindle and the driving spindle includes at least one main shaft bearing.It mentions
Out, which includes at least one security unit, which has at least one first safety element, wherein institute
At least one security unit is stated to be configured to axially insure the driving spindle and connect with gear mechanism housing tectonism
Binding structure.Effect connection structure between security unit and gear mechanism housing should be understood as a kind of connection structure, insurance policy
Member is connect with gear mechanism housing by the connection structure.Here, the effect connection structure can releasably or can not pine
It constructs with opening.The effect connection structure can by force closure, shape is sealed and/or the sealed foundation of material.For insurance policy
The example of effect connection structure between member and gear mechanism housing is to be threadedly coupled, clamp connection, tooth connection, adhesive connection
And/or other connection types that other skilled in the art is fully known.
Within the scope of the present invention, " axial direction " is it is meant that at least substantially parallel at least one tool axis.It is described extremely
A few tool axis is constituted here by least one rotation axis of tool receiving element.
Within the scope of the present invention, main shaft bearing for example can be understood as rolling bearing, sliding bearing or art technology
Other bearing types known to personnel.The structure and working method of main shaft bearing known to those skilled in the art.
The invention allows to improve safety of user when using hand held power machine.The shortcomings that prior art, exists
In in the case where at least one described main shaft bearing failure, driving spindle may be unclamped from hand held power machine.Driving spindle
Release in the case where main shaft bearing failure is not uncommon during being undesirable effect, the operation especially in hand held power machine
It hopes.The present invention solves the problems, such as this and improves the robustness of hand held power machine.
According to first embodiment, at least one described security unit includes the second safety element.Second safety element
At least one component for being configured to main shaft bearing, especially inner ring.First safety element is provided for the institute via main shaft bearing
State at least one component, especially inner ring carries out axial relief to driving spindle.Here, the first safety element is matched with the second insurance
Element ground configuration.Within the scope of the present invention, " cooperation " carries out them it is meant that two components are mutually coordinated each other
Interaction.
In the first embodiment, the first safety element forms in this way, so that it hinders to drive via the second safety element
The undesirable axial movement of main shaft, especially driving spindle are moved in parallel towards the direction of tool receiving element.Driving spindle as a result,
It can not be unclamped from gear mechanism housing.Therefore the steady of hand held power machine can be improved by solution at low cost
Property.
At least one described component of main shaft bearing can also be additionally or alternatively outer ring, at least one rolling element,
A for example, at least ball, at least one tapper, at least one needle roller or other rolling elements well known by persons skilled in the art, or
At least one rolling bearing retainer, at least one seal disc, at least one rolling bearing guide device or at least one sliding
Bearing insert.Other components of the fully known main shaft bearing of those skilled in the art.
In an advantageous embodiment, driving spindle has the axial relief element in axial convex shoulder form.It is described
Axial convex shoulder is provided for carrying out axial relief to main shaft bearing.In addition to axial convex shoulder, driving spindle can also have at least
One pivot flange.The axial direction convex shoulder is close at least one pivot flange arrangement.
Axial convex shoulder is via the protection main shaft bearing of at least one component described in main shaft bearing to prevent the parallel of main shaft bearing
It is mobile.Therefore ensure that the higher safety of user.
It is particularly preferred that the first safety element dish type construct.Within the scope of the present invention, " dish type " is it is meant that described
First safety element substantially flat constructs and has at least one substantially flat face.Also, it is contemplated that described
One safety element constitutes multiple pressing parts, notch, opening and/or step.It may be provided in by the first safety element of dish type
This low and steady first safety element.
In this second embodiment, at least one described security unit includes the second safety element.Second safety element
It is configured at least substantially circular flange in driving spindle.First safety element is provided at least partly herein
At least substantially circular flange of ground ladle cover and axially insure driving spindle.In this second embodiment, driving spindle
It can have pivot flange.End region thereof of at least substantially circular flange arrangement in pivot flange.First protects
Dangerous element constructs so herein, allows its at least partly at least substantially circular flange of ladle cover, so as to driving
Main shaft is insured to be moved in parallel to prevent it.It therefore ensures that steady and reliably insures driving spindle.
Preferably, the first safety element substantially constructs to tank shape.In addition, first safety element is provided at least
Partly flange at least substantially circular described in ladle cover.Within the scope of the present invention, " tank shape " is it is meant that first insurance
Element forms in the way of tank, wherein the mode of tank can have at least one notch and/or opening.Thereby, it is ensured that safety
Fix driving spindle steadily to prevent moving in parallel.
In the third embodiment, the second safety element and the first safety element the first security unit of composition, described second
Safety element is configured at least one component of main shaft bearing, especially inner ring；First safety element be configured to via
Second safety element axially insures driving spindle.Additionally, another second safety element and another first safety element structure
At the second security unit, another second safety element is at least substantially circular flange；Another first insurance member
Part is configured to flange at least substantially circular described at least partly ladle cover and axially insures driving spindle.First
It is provided for axially insuring driving spindle with the second security unit.
Here, the first safety element of the first security unit and the first safety element of the second security unit reconstitute with
The effect connection structure of gear mechanism housing.The one the first safety elements and the two the first safety elements again with transmission device shell
Physical strength is sealed, shape is sealed and/or material is connected cohesively together.Here, driving spindle includes the second insurance of the first security unit
Second safety element of element and the second security unit.Herein, driving spindle also may include at least one pivot flange,
In, the two the second safety element constructions are on the one end region of at least one pivot flange.
First and second security units protection driving spindle is moved in parallel from undesirable.Therefore it is provided for user
Safety high and at low cost.
Preferably, the one the first safety element and the two the first safety element integrally construct.By described
The construction of the one of the one the first safety elements and the two the first safety elements, provides steady, reliable and at low cost insurance member
Part.
Advantageously, the first safety element has notch.First safety element can be connected to transmission dress by the notch
It sets on shell, especially with screw-driving on gear mechanism housing.First safety element can pass through slot by connecting element
Mouth is connect with transmission device shell.Connecting element is that pin, screw, rivet or other skilled in the art are fully known herein
Connecting element.It is particularly preferred that the first safety element can be by screw-driving on gear mechanism housing.Also it is contemplated that ability
Other connection types known to field technique personnel are used for the connection of the first safety element and gear mechanism housing.For this purpose, the transmission
Device housing has corresponding notch, to receive the connecting element.Thereby, it is ensured that the first safety element and transmission device shell
Being reliably connected between body.
Detailed description of the invention
The present invention is illustrated according to preferred embodiment below.Attached drawing below is shown:
Fig. 1 has the schematical view of the hand held power machine according to the present invention of security unit；
Fig. 2 shows the first embodiment of hand held power machine according to the present invention in the section view of amplification；
The three-dimensional view of Fig. 3 hand held power machine according to the present invention, which, which has, is connected to transmission dress
Set the first safety element on shell；
The three-dimensional view of the driving spindle of Fig. 4 first embodiment has the first safety element of axial convex shoulder and dish type；
Fig. 5 shows the second embodiment of hand held power machine according to the present invention in the section view of amplification；
Fig. 6 shows the third embodiment of hand held power machine according to the present invention in the section view of amplification.
Specific embodiment
The illustrative hand held power machine 100 with machine housing 105 and handle 115 is shown in FIG. 1.According to one
Embodiment, the hand held power machine 100 can mechanically and electrically connect with battery group 190 for the electric current supply for not depending on power grid
It connects.Fig. 1 shows the illustratively hand held power machine 100 as battery drill driver.However it should be pointed out that the present invention can
To apply in different hand held power machines, so that the present invention is not limited to battery drill driver, the hand-held work
Tool machine has driving spindle 120 and gear mechanism housing 110 as drive shaft 119, in addition, the present invention also with hand-held tool
Machine 100 be can electricity operation, that is, run with running or rely on power grid by battery group 190 with not depending on power grid, and/or still may be used
It is unrelated without running electricly.
Machine housing 105 for example surrounds electric drive motor 180 and transmission device 170.Electric drive motor 180 is by battery
190 supply electric current of group.Drive shaft 119, especially driving spindle 120 are connect by transmission device 170 with drive motor 180.Drive horse
Up to 180 for example equipped with motor shell 185 and transmission device 170 is furnished with gear mechanism housing 110.110 He of gear mechanism housing
Motor shell 185 is for example arranged in machine housing 105.
Transmission device 170 is configured in the torque transfer to driving spindle 120 that will be generated by drive motor 180.Root
According to an embodiment, transmission device 170 includes the planetary driving device for being configured with different gear or planetary stage, the Gear Planet Transmission
Device is rotatably driven when hand held power machine 100 is run by drive motor 180.In addition, transmission device 170 have torque from
Clutch 160.
Illustratively explanation has the planetary driving device of torque clutch 160 in 10 2,012 219 495A1 of DE
170.It refers to the document and its introduction in detail herein, therefore omits to the planetary driving device with torque clutch 160
170 are discussed in detail.
Manual switch 195 manipulates drive motor 180, thus can be opened and closed drive motor 180.Drive motor 180 can
To be set as arbitrary motor type, such as electronic commutation motor or d.c. motor.Preferably, be configured to can for drive motor 180
It is electronically controlled or adjusts in this way, make it possible to realize antikinesis and adjustable set desired rotation speed.This field skill
The working method and structure of the fully known suitable driving device of art personnel, therefore this is not discussed in detail herein.
Bearing assembly 130 can be rotated to support on driving spindle 120 in machine housing 105.In one embodiment,
Driving spindle is equipped with tool receiving element 140.The tool receiving element 140 is arranged in the region of end side 112 of machine housing 105
And such as with drill chuck 145.According to an embodiment, bearing assembly 130 has at least two bearing portions 132,134.
At least two bearing portion 132,134 is arranged in the region 299 after transmission device 170 and by tool casing
Body 105 surrounds, referring to fig. 2.At least two bearing portion 132,134 is furnished at least two bearings: at least one fixing axle
232 and at least one main shaft bearing 234 are held, referring to fig. 2.At least one described fixing bearing 232 and at least one described main shaft
Bearing 234 is provided for rotatably supporting driving spindle 120.
Tool 150 can be received by tool receiving element 140.Tool receiving element 140 may be molded into driving spindle 120
Or it is connect in the form of set piece with the driving spindle.Fig. 1 for example shows tool receiving element 140, and the tool receiving element is to cover
It is connect by set fixed equipment 122 with driving spindle 120 to piece installing form.In addition, the rotary shaft of tool receiving element 140
Line constitutes at least one tool axis 280.Before tool receiving element 140 with tool 150 is arranged in hand held power machine 100
In end regions 290.
According to an embodiment, hand held power machine 100 has torque clutch 160 as explained above.The torque
Clutch 160 is for example provided with torque tune and sets device 168.The torque tune sets device 168 equipped with can be by hand held power machine 100
The torque tune of user's manipulation sets sleeve 165.The torque tune set sleeve 165 for by torque clutch 160 adjust set user
Corresponding desired torque limit.The fully known torque tune of those skilled in the art set sleeve 165 working method and structure and
Torque tune sets device 168 and please refers to 10 2,012 219 495A1 of document DE in detail.
Driving spindle 120 is for example equipped with spindle lock equipment 250.According to an embodiment, spindle lock equipment 250 is along drive
The axial direction of dynamic main shaft 120 is arranged between at least two bearing portion 132,134 and transmission device 170.Lock spindle
Locking equipment 250 for make driving spindle 120 drive motor 180 close when pair in.The fully known main shaft of those skilled in the art
The working method and structure of locking device 250.
Fig. 2 shows the first embodiment party of hand held power machine 100 according to the present invention in the section view 200 of amplification
Formula.In the first embodiment, driving spindle 120 has the security unit 300 in 301 form of the first security unit, the guarantor
Dangerous unit has the first safety element 310,315.First safety element 315 is constructed and is wrapped to dish type in the first embodiment
At least one opening 500 substantially placed in the middle and notch 510 are included, referring to fig. 4.In addition, the first safety element 315 has substantially
Upper the first and second flat faces 311,312.
First security unit 301 drives with 110 composition of gear mechanism housing effect connection structure 400 and axially insurance
Main shaft 120.First security unit 301 prevents driving spindle 120 along toolroom machine axis 280 towards before hand held power machine 100
The direction of end regions 290 undesirably moves in parallel.Connection structure 400 is acted in this embodiment by force closure, outstanding
It is by the construction of screw connection structure 410 by screw 411, referring also to Fig. 3.In order to establish effect connection structure 400, especially
Screw connection structure 410, gear mechanism housing 110 have notch 111.The notch 111 receives screw 411.
Main shaft bearing 234 is rolling bearing, especially ball bearing in the first embodiment.Main shaft bearing 234 includes interior
Ring 236, outer ring 238, rolling element 240 and seal disc 242.Fixing bearing 232 is configured to sliding bearing in this embodiment.
First security unit 301 includes the second safety element 320,321.Second safety element 321 is in this embodiment
It is the inner ring 236 of main shaft bearing 234.First safety element 315 adapts to second safety element 321, i.e. main shaft bearing 234
Inner ring 236 so that the first safety element 315 prevents driving spindle 120 towards hand held power machine via the second safety element 321
The direction of 100 front end region 290 undesirably moves in parallel.
Driving spindle 120 has the axial relief element 330 in 331 form of axial convex shoulder, to this referring also to Fig. 4.It is described
Axial convex shoulder 331 is configured to insurance main shaft bearing 234 to prevent towards the side of the front end region of hand held power machine 100 290
To undesirable move in parallel.Additionally, driving spindle 120 also has pivot flange 340.Axial convex shoulder 331 is arranged in branch
Between staying orchid 340 and the inner ring 236 of main shaft bearing 234.
Fig. 3 shows the three-dimensional view of hand held power machine 100 according to the present invention, wherein the first safety element 315 and biography
Dynamic device housing 110 connects.First security unit 301, especially between the first safety element 315 and gear mechanism housing 110
Effect connection structure 400 is configured to screw connection structure 410 in the first embodiment.Screw connection structure 410 passes through screw
411, the notch 111 of the notch 510 of the first safety element 315 and gear mechanism housing 110 is established.
Fig. 4 a shows with axial relief element 330, the three-dimensional view of the driving spindle 120 of especially axial convex shoulder 331.?
The first safety element 315 in the first embodiment is shown in Fig. 4 b.First safety element 315 substantially constructs simultaneously to dish type
And substantially flat first face 311 is shown.Driving spindle 120 is essentially through opening 500 substantially placed in the middle.Notch 510
For receiving screw 411, to establish screw connection structure 410 with the notch 111 of gear mechanism housing 110.
Show hand held power machine 100 according to the present invention in the section view of amplification 200 in Fig. 5 second is implemented
Mode.Here, second embodiment includes the security unit 300,302 of the substitution with the second safety element 320,322.This
Two safety elements 322 are shaped at least substantially circular flange 550 in driving spindle 120.In addition, the second security unit
302 include the first safety element 310,316.First safety element 316 is configured at least partly that ladle cover is at least substantially
Circular flange 550.In this second embodiment, driving spindle 120 equally has pivot flange 340.In pivot flange 340
Constructed on end regions 551 at least substantially around flange 550.First safety element 302 is shaped at least partly
At least substantially circular flange 550 of ladle cover.Thus driving spindle 120 is insured to prevent it towards hand held power machine 100
The undesirable of direction of front end region 290 move in parallel.
In this second embodiment, the first safety element 316 substantially forms to tank shape and has substantially placed in the middle
Notch 560.Driving spindle 120 is directed across notch 560 substantially placed in the middle.It is radial that first safety element 316 molds first
Extension 570, axial extension 571 and the second radial extension 572, to construct the shape of tank shape.First insurance member as a result,
Part 316 can at least partly at least substantially circular flange 550 of ladle cover.
In addition, the first safety element 316 has substantially flat first and second face 371,372.It is substituted at one
In embodiment it is contemplated that substantially flat first and second face 371,372 also includes pressing part, opening in addition, another
Outer notch or similar structures.
As having been described above explanation in the first embodiment, there is also security units in this second embodiment
Effect connection structure 400 between 300,302 and gear mechanism housing 110.Herein, the second security unit 302 is by screw thread
Connection structure 410 constitutes the effect connection structure 400 with gear mechanism housing 110.
Fig. 6 shows the third embodiment of hand held power machine 100 according to the present invention in the section view of amplification.It should
Third embodiment includes the first security unit 301 and the second security unit 302.First and second security units 301,302
It is provided for insuring driving spindle 120 direction to prevent it towards the front end region of hand held power machine 100 290
It is undesirable to move in parallel.As explained above, the first and second security units 301,302 and 110 structure of gear mechanism housing
At the effect connection structure 400 for 410 form of structure that is threaded.
First security unit 301 includes the one the first safety elements 315 and the one the second safety elements 321 and just as root
Implement like that according to the security unit 300,301 of Fig. 2.Second security unit 302 includes the two the first safety elements 316 and the two the
Two safety elements 322 and implement just as the security unit 300,302 according to Fig. 5.
The one the second safety elements 321 are configured to the inner ring 236 and second of main shaft bearing 234 as explained above
Second safety element 322 be configured at substantially around flange 550.Herein, at least substantially circular flange
550 also are disposed on the end regions 551 of pivot flange.Additionally, driving spindle 120 includes in 331 form of axial convex shoulder
Axial relief element 330.
In the third embodiment, it constructs to the one the first safety elements 315 and the two the first 316 liang of bodies of safety element.
Also, it is contemplated that the one the first safety elements 315 and the two the first 316 one of safety element in an alternative embodiment
Ground construction.
In the third embodiment, substantially flat first face 311 of the one the first safety elements 315 is towards the two the
Substantially flat second face 372 of one safety element 316.On the contrary, the one the first safety elements 315 is substantially flat
Second face 312 is away from substantially flat first face 371 of the two the first safety elements 316.In an alternative embodiment
In it is contemplated that the one the first safety elements 315 and the two the first safety elements 316 other arrangements so that there are described basic
The arrangement of the substitution in upper flat face.
Claims (9)
1. a kind of hand held power machine (100), the hand held power machine has transmission device (170) and gear mechanism housing
(110) and there are drive shaft (119), wherein the drive shaft (119) is configured to driving spindle (120) and the driving is led
Axis (120) includes at least one main shaft bearing (234), which is characterized in that the driving spindle (120) includes at least one insurance
Unit (300,301,302), the security unit have at least one first safety element (310,315,316), wherein it is described extremely
A few security unit (300,301,302) is configured to carry out axial relief to the driving spindle (120) and be used for
Connection structure (400) are acted on the gear mechanism housing (110) composition.
2. hand held power machine (100) described in accordance with the claim 1, which is characterized in that at least one described security unit
(300,301) include the second safety element (320,321), wherein second safety element (320,321) is configured to the master
At least one component of axle bearing (234), especially inner ring (236), also, first safety element (310,315) is arranged
To be led at least one described component via the main shaft bearing (234), the especially described inner ring (236) to the driving
Axis (120) carries out axial relief.
3. hand held power machine (100) according to claim 1 or 2, which is characterized in that driving spindle (120) tool
There is the axial relief element (330) in axial convex shoulder (331) form, wherein the axial direction convex shoulder (331) is provided for institute
It states main shaft bearing (234) and carries out axial relief.
4. hand held power machine (100) described in accordance with the claim 3, which is characterized in that the first safety element (310,315) disk
Construct to shape.
5. hand held power machine (100) described in accordance with the claim 1, which is characterized in that at least one described security unit
(300,302) include the second safety element (320,322), wherein second safety element (320,322) is configured to described
At least substantially circular flange (550) and the first safety element (310,316) in driving spindle (120) are provided for
At least partly flange at least substantially circular described in ladle cover (550) and for the driving spindle (120) carry out axis
To insurance.
6. hand held power machine (100) according to claim 5, which is characterized in that the first safety element (310,316) base
It is constructed to tank shape in sheet and is provided for flange at least substantially circular described at least partly ladle cover (550).
7. according to hand held power machine (100) described at least claim 2 and 5, which is characterized in that be configured to the spindle shaft
Hold at least one component of (234), the especially described inner ring (236) the second safety element (320,321) be configured to
For via second safety element (320,321) driving spindle (120) to be carried out with the first safety element of axial relief
(310,315) the first security unit (301) are constituted；Also, it is shaped to the second of at least substantially circular flange (550)
Safety element (320,322) and be provided for flange at least substantially circular described at least partly ladle cover (550) and
The first safety element (310,316) for the driving spindle (120) to be carried out with axial relief constitutes the second security unit
(302), wherein the first security unit (301) and the second security unit (302) are provided for the driving spindle (120)
Carry out axial relief.
8. hand held power machine (100) according to claim 7, which is characterized in that the one the first safety elements (310,
315) it is integrally constructed with the two the first safety elements (310,316).
9. according to hand held power machine described in any one of preceding claims (100), which is characterized in that the first safety element
(310,315,316) there are notch (510), wherein the first safety element (310,315,316) can be by the notch
(510) be connected on the gear mechanism housing (110), especially can by the notch with screw-driving in the transmission
In device housing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017209013.8A DE102017209013A1 (en) | 2017-05-30 | 2017-05-30 | Hand tool with a security unit |
| DE102017209013.8 | 2017-05-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108972458A true CN108972458A (en) | 2018-12-11 |
| CN108972458B CN108972458B (en) | 2023-03-14 |
Family
ID=64278753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810538834.6A Active CN108972458B (en) | 2017-05-30 | 2018-05-30 | Hand-held power tool |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108972458B (en) |
| DE (1) | DE102017209013A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018118196A1 (en) * | 2018-07-27 | 2020-01-30 | Festool Gmbh | Hand machine tools, in particular impact wrenches |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107424A (en) * | 2009-12-18 | 2011-06-29 | 罗伯特.博世有限公司 | Hand-guided power tool having a torque coupling |
| CN202239771U (en) * | 2011-10-18 | 2012-05-30 | 东莞市妙达电动工具制造有限公司 | Novel multifunctional electric impact drill |
| US20140116833A1 (en) * | 2012-10-25 | 2014-05-01 | Robert Bosch Gmbh | Hand-held machine tool with a torque clutch |
| CN205497396U (en) * | 2015-02-19 | 2016-08-24 | 株式会社牧田 | Electric tool |
| WO2017064225A1 (en) * | 2015-10-15 | 2017-04-20 | Robert Bosch Gmbh | Hand-held power tool |
-
2017
- 2017-05-30 DE DE102017209013.8A patent/DE102017209013A1/en active Pending
-
2018
- 2018-05-30 CN CN201810538834.6A patent/CN108972458B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107424A (en) * | 2009-12-18 | 2011-06-29 | 罗伯特.博世有限公司 | Hand-guided power tool having a torque coupling |
| CN202239771U (en) * | 2011-10-18 | 2012-05-30 | 东莞市妙达电动工具制造有限公司 | Novel multifunctional electric impact drill |
| US20140116833A1 (en) * | 2012-10-25 | 2014-05-01 | Robert Bosch Gmbh | Hand-held machine tool with a torque clutch |
| CN205497396U (en) * | 2015-02-19 | 2016-08-24 | 株式会社牧田 | Electric tool |
| WO2017064225A1 (en) * | 2015-10-15 | 2017-04-20 | Robert Bosch Gmbh | Hand-held power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017209013A1 (en) | 2018-12-06 |
| CN108972458B (en) | 2023-03-14 |
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