CN110520251A - Power tool - Google Patents
Power tool Download PDFInfo
- Publication number
- CN110520251A CN110520251A CN201880022484.6A CN201880022484A CN110520251A CN 110520251 A CN110520251 A CN 110520251A CN 201880022484 A CN201880022484 A CN 201880022484A CN 110520251 A CN110520251 A CN 110520251A
- Authority
- CN
- China
- Prior art keywords
- shell
- housing portion
- power tool
- fastener
- fixing screws
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Motor Or Generator Current Collectors (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Portable Power Tools In General (AREA)
Abstract
The present invention provides a kind of power tool that can be more easier and safely enter interior of shell.Power tool (10) has commutator motor (14) in the shell (12), and shell (12) includes the first shell (30), second housing portion (32) can be moved relative to the first shell (30), by tapping screw (34) that they are fixed and the lid (36) being clipped between the first shell (30) and second housing portion (32).When unscrewing tapping screw (34), tapping screw (34) engages to the direction displacement far from the first shell (30) with the snap rings (50) of second housing portion (32), and then is displaced second housing portion (32) far from direction to this.Thus lid (36) becomes the state that can be removed.In addition, when tightening tapping screw (34), second housing portion (32) to the direction displacement close to the first shell (30), is back to lid (36) clamped state under the action of tapping screw (34).
Description
Technical field
The present invention relates to the power tools for having power part inside the shell.
Background technique
In the power tool for having power part inside the shell, in general, operator is by dismantling shell come to being configured at shell
Interior power part etc. is safeguarded.Such as a kind of grinder is disclosed in patent document 1, which is including motor case
And have the commutator motor as power part in the shell of rear cover.In general, commutator motor is contacted with carbon brush and rotor one
Commutator with rotation is to supply electric current to rotor, but carbon brush is gradually worn out due to the friction with the commutator of rotation, because
This is periodically required to replace.In the grinder, removes and rear cover is fixed on the fixing screws of motor case and removes rear cover, so
After replace carbon brush.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2007-152479 bulletin
Summary of the invention
Subject to be solved by the invention
It is needing to take to carry out the maintenance for the power part being configured in shell as above-mentioned previous grinder
In the power tool of a part of lower casing, it is possible to lose the screw removed, in addition the spiral shell temporarily removed is installed herein
Fine operation is needed when nail, it is more troublesome.In addition, the electronics being configured in shell is electric if a part of shell is removed
The component of road, wiring etc. exposes in outside, and it is therefore possible to keep these components damaged.
The problem of in view of above-mentioned conventional art, the purpose of the present invention is to provide the power works for having power part inside the shell
Tool, the power tool can be easier and more safely carry out the entrance to interior of shell.
Solve the scheme of project
I.e. the present invention is a kind of power tool, has power part inside the shell, wherein
The shell has:
First shell；
Second housing portion can be displaced relative to first shell；
Fixed mechanism is used to the second housing portion being fixed on first shell；
Inside enters opening, is used for the inside into the shell；And
Lid is clamped between first shell and the second housing portion by the fixed mechanism after fixed,
Enter opening to close the inside,
The fixed mechanism when being rotated to first direction, to far from first shell direction be displaced, to
When the reversed second direction of the first direction rotates, it is displaced to the direction close to first shell,
The fixed mechanism to the first direction rotate and to far from first shell direction be displaced when,
Engage on the separate direction with the second housing portion, to make the second housing portion to the separate direction position
It moves to release the clamping, the lid can be removed between first shell and the second housing portion,
The fixed mechanism to the second direction rotate and to close to first shell direction displacement when,
Engage on the close direction with the second housing portion, to make the second housing portion to the close direction position
It moves, the lid is clamped between first shell and the second housing portion.
In the power tool, rotate by using in the fixed mechanism that second housing portion is fixed on to the first shell
It is displaced second housing portion, to become the state that can remove lid.By this structure, without by fixed mechanism and the
Two shells are removed completely from the first shell, are just able to enter interior of shell.Therefore, in the dimension for the power part in shell
Shield etc. and when entering interior of shell, can prevent from losing fixed mechanism, and the power part made in shell, other portions can be reduced
Part excessively exposes a possibility that outside keeps power part etc. damaged.In addition, when lid returns to clamped original state, nothing
Fixed mechanism, second housing portion need to be aligned installation relative to the first shell again, only rotate fixed mechanism, because
This can more easily carry out operation compared with previous power tool.
Being also possible to the fixed mechanism is fixing screws, which is screwed together in first shell, and to
The first direction is unscrewed when rotating, and tightens when rotating to the second direction.
More specifically, it is also possible to
The fixing screws have axle portion and head,
The second housing portion includes insertion hole, inserts for the axle portion；Recess portion is connect simultaneously with the insertion hole
Store the head；Screw head holding section is configured to cover a part on the head, and the head is maintained at institute
It states in recess portion,
When the fixing screws helical rotation is unscrewed, the head of the fixing screws is sticked in the screw head card
Conjunction portion, so that the second housing portion be made to be displaced to the separate direction.In addition in this case, it is also possible to the spiral shell
Nail head holding section is in the ring-type with central opening, can be inserted into tool by the central opening to carry out the fixed spiral shell
The helical rotation of nail operates.
Alternatively, it is also possible to be, first shell has the internal stretch of the resin screwed togather for the fixing screws
Portion, the fixing screws are the tapping screws for being screwed into the internal stretch portion.
By this structure, do not need to be fabricated for the internal screw thread that fixing screws screw togather in the manufacturing process of the first shell
Portion can reduce component manufacturing cost.
Also, it is also possible to first shell with the first fastener, the second housing portion has and described the
Second fastener of one fastener engaging,
By the engaging of first fastener and second fastener, thus to the second housing portion relative to institute
The first shell is stated to be limited in the displacement range that the separate side shifts up, it is described solid in the displacement range
Determining mechanism will not completely disengage from first shell.
Specifically, being also possible to second fastener is the locking screw for being screwed together in the second housing portion, institute
The long hole that the first shell has the front end for storing the locking screw is stated, the end of the long hole becomes first card
Stop.
Lead to the displacement that second housing portion will not be made to carry out necessity or more according to this structure.In addition fixing screws can not be from
First shell is taken out, therefore can be prevented more reliably loss fixing screws.
Specifically, being also possible to the power part is the commutator motor with brush, the brush is configured at can
Pass through the internal position replaced into opening.
Hereinafter, the embodiment based on Detailed description of the invention power tool of the invention.
Detailed description of the invention
Fig. 1 is the side view of the power tool of one embodiment of the present invention.
Fig. 2 is the top view of the power tool of Fig. 1.
Fig. 3 is the side view cutaway drawing along the III-III line of Fig. 2.
Fig. 4 is the overhead sectional view along the IV-IV line of Fig. 3.
Fig. 5 is the first main portion sectional view for removing movement for showing lid.
Fig. 6 is the second main portion sectional view for removing movement for showing lid.
Fig. 7 is the third main portion sectional view for removing movement for showing lid.
Fig. 8 is the 4th main portion sectional view for removing movement for showing lid.
Fig. 9 is the vertical view section view that second housing portion has been moved to IV-IV line in the state of the position of Fig. 7, along Fig. 3
Figure.
Specific embodiment
As shown in Figure 1 to Figure 3, the power tool 10 of one embodiment of the present invention is that have in shell 12 as power
The electric tool of the commutator motor 14 in portion.It drives and connects in the rotating output shaft 16 via angular wheel 18 and commutator motor 14
On the tool output shaft 20 of knot, component required for disk-shaped grinding pad etc. is installed according to purposes.
As shown in figure 3, commutator motor 14 has: rotor 22 is installed as to rotate relative to shell 12；Stator
24, it is configured at around rotor 22 and is fixed on shell 12；And two brushes 26, it is configured to and is installed on rotor 22
Commutator 23 contacts.Switch 28 is installed on shell 12, starts/stop commutator motor 14 by operating the switch 28
Driving.Brush 26 and high-speed rotating commutator 23 slide, therefore gradually wear out.Therefore, it is used by the power tool 10
After a certain period of time, new brush 26 is needed replacing.
Shell 12 includes the first shell 30, keeps commutator motor 14；Second housing portion 32, is installed on first
The rear of shell 30；Tapping screw (fixed mechanism, fixing screws) 34, is fixed on the first shell for second housing portion 32
30；And two lids 36, it is clamped between the first shell 30 and second housing portion 32 and is kept.Second housing portion 32
It is installed on the first shell 30 in such a way that front end portion 32a covers the outer peripheral surface 30a of the rear end part of the first shell 30, and
It can be slidably displaced relative to the first shell 30 along the direction of long side axis L.Rear end recess portion 30b in the first shell 30
Between the front end recess portion 32b in second housing portion 32, the inside for being formed with the inside for entering shell 12 enters opening 37.It should
Inside enters opening 37 and is closed under the use state of the power tool 10 by lid 36.First shell 30, which has, extends to second
Internal stretch portion 38 in shell 32 extends internally portion 38 and is formed with the hole 40 being screwed into for tapping screw 34.Tapping screw
34 side walls for extending internally the hole 40 in portion 38 are screwed among the hole 40 and fix while forming thread groove.First shell 30
Entirety is formed by resin, so that it is easy to extend internally being screwed into for tapping screw 34 in portion 38.
Second housing portion 32 includes insertion hole 46, inserts for the axle portion 42 of tapping screw 34；Recess portion 48, with insert
Hole 46 connects and stores the head 44 of tapping screw 34；And metal snap rings (screw head holding section) 50, with
The mode that the direction of long side axis L covers the peripheral portion on the head 44 of upper tapping screw 34 is pressed into recess portion 48 and fixes.Self tapping spiral shell
The head 44 of nail 34 is maintained in recess portion 48 by snap rings 50.Therefore, tapping screw 34 can not take from second housing portion 32
Out.When tightening or unscrewing tapping screw 34 relative to the first shell 30, it is inserted into from the central opening 52 of snap rings 50
The tools such as screwdriver, by 34 spiral rotating of tapping screw.Snap rings 50 are pressed into recess portion 48 it should be noted that can also substitute
Structure, and the inner peripheral surface of recess portion 48 be arranged slot, and by the slot be embedded in retaining ring and constitute screw head holding section.
In the internal stretch portion 38 of the first shell 30, circuit base is configured in a manner of being covered by second housing portion 32
Plate 60.In circuit substrate 60 equipped with the LED62 for indicating the state of the power tool 10.The circuit substrate 60 is placed into tree
The shell of rouge prolongs from the rear (being right side when from figure) of the first shell 30 relative to the inside of the first shell 30
It slides and installs in long portion 38.In second housing portion 32 and LED62 matched position, configured with the light for spreading LED62
Light pervasion component 64.The light that LED62 is issued as a result, is spread by light pervasion component 64, the outer surface of light pervasion component 64 with
Substantially uniform Intensity LEDs, to be easy shining for visuognosis LED62.
As shown in figure 4, being also screwed in second housing portion 32 along the locking spiral shell extended with the direction of long side axis L-orthogonal
Follow closely (the second fastener) 54.In addition it extends internally portion 38 and is formed with the long hole 56 along the extension of the direction of long side axis L, the long hole
The front end 58 of 56 storage locking screws 54.
As described above, the brush 26 of commutator motor 14 is constantly worn due to the friction between commutator 23,
It is periodically required to replace.In the power tool 10, the replacement of brush 26 can be carried out with following step.
Firstly, as shown in figure 5, be fixed on the state of the first shell 30 from second housing portion 32 by tapping screw 34,
Left-handed (first direction) helical rotation of tapping screw 34 is unscrewed.So, tapping screw 34 is to remote along long side axis L
Direction (being right under observing in figure) displacement from the first shell 30, head 44 as shown in Figure 6 is sticked in snap rings
50.If further unscrewing tapping screw 34, the pressing of snap rings 50 on the head of tapping screw 34 44, second housing portion 32 with from
Attacking screw 34 1, the direction far from the first shell 30 is displaced in the same direction.When second housing portion 32 is moved to the position of Fig. 7, pass through
The grip release for the lid 36 that first shell 30 and second housing portion 32 carry out.As a result, as shown in figure 8, lid 36 can be from first
It is removed between shell 30 and second housing portion 32.
It should be noted that when second housing portion 32 is in the position of Fig. 7, as shown in figure 9, before locking screw 54
End 58 is sticked in the end (the first fastener) 66 of long hole 56, so that second housing portion 32 can not be further to far from outside first
The direction in shell portion 30 is displaced.That is, limited by the end 66 of locking screw 54 and long hole 56 second housing portion 32 relative to
The displacement range of first shell 30 displacement.Tapping screw 34 have will not fall off from the first shell 30 in the displacement range
Length.
As shown in figure 8, entering opening 37 when removing lid 36 by the inside that lid 36 covers and closes and exposing.It is protected from brush
Hold frame 70 remove old brush 26 and new brush 26 is installed to brush retainer 70 can be by entering opening inside this
37 carry out.After new brush 26 is installed on brush retainer 70, lid 36 is installed again and by 34 dextrorotation (second of tapping screw
Direction) helical rotation and tighten.So, tapping screw 34 to close to the first shell 30 direction displacement and with second outside
Shell portion 32 engages, and then is displaced second housing portion 32 to the close direction.Is fixed on being back to second housing portion 32
When the state of Fig. 5 of one shell 30, lid 36 becomes the state clamped by the first shell 30 and second housing portion 32 again.Extremely
This, the replacement operation of brush 26 terminates.
In the power tool 10, in the replacement of the equal components of brush 26 be configured in shell 12, do not need to take
The second housing portion 32 of lower a part as shell 12 and tapping screw 34.Therefore, it is configured at the electricity of the inside of shell 12
The components such as base board 60, LED62 will not expose in outside, so that a possibility that accidentally making these components damaged is smaller.In addition,
It can prevent from losing tapping screw 34.While inner peripheral surface of the tapping screw in the hole of object part forms thread groove in threaded through bores,
If but when removing by the tapping screw of once mounting and be installed on identical hole again, sometimes in position shape different from the previous case
At thread groove.So, the strength reduction of the inner peripheral surface in hole, the inner peripheral surface quilt sometimes if being repeated a number of times such operation
It destroys and finally cannot keep tapping screw.Just can as described above without removing tapping screw 34 in the power tool 10
Into the brush 26 etc. of the inside of shell 12, therefore the damage of the screw hole as caused by tapping screw 34 can be prevented.In addition, logical
It crosses locking screw 54 and long hole 56 limits the displacement range in second housing portion 32, thus can not remove tapping screw 34, thus
Tapping screw 34 will not be absent-mindedly removed, the above problem can be prevented more reliably.
The power tool 10 of one embodiment of the present invention is illustrated, but the present invention is not limited thereto, it can
It makes various changes.For example, the internal stretch portion 38 being screwed into for tapping screw 34 in the first shell 30 is formed by resin i.e.
Can, it is not necessarily to the generally resin of the first shell 30.In addition, as second housing portion 32 to be fixed on first
The fixing screws of shell 30 can also substitute tapping screw 34 and use common screw.Wherein, in this case, inside
Portion's extension 38 needs to be pre-formed internal screw thread.Also, the screw that is integrally formed with washer also can be used as fixing screws,
Second housing portion 32 is constituted to keep washer rather than in a manner of the head 44 of screw.In addition, outside second housing portion 32 and first
The fixed mechanism in shell portion 30 is also possible to the fixed mechanism other than screw.For example, it can be such as flowering structures: will have in axle portion
To radial outside protrusion outstanding component as fixed mechanism, the inner peripheral surface in the first shell is pre-formed with tipper
The hole of (or spiral groove) installs fixed mechanism in such a way that its protrusion engages with tipper, and by making fixed machine
Structure rotates to be displaced fixed mechanism to the direction separate relative to the first shell and close direction.The present invention not office
It is limited to the electric tool for having commutator motor, is having the dynamic of other power parts such as brushless motor, air motor, engine
It can be similarly applicable in power tool.In addition, as power tool, drill bit device also comprising movable-type or fixed,
The lathe of drilling machine etc..
Description of symbols:
Power tool 10；Shell 12；Commutator motor (power part) 14；Rotating output shaft 16；Angular wheel 18；Tool is defeated
Shaft 20；Rotor 22；Commutator 23；Stator 24；Brush 26；Switch 28；First shell 30；Outer peripheral surface 30a: rear end recess portion
30b；Second housing portion 32；Front end portion 32a；Front end recess portion 32b；Tapping screw (fixing screws) 34；Lid 36；Inside, which enters, opens
Mouth 37；Internal stretch portion 38；Hole 40；Axle portion 42；Head 44；Insertion hole 46；Recess portion 48；Snap rings (screw head holding section)
50；Opening 52；Locking screw (the second fastener) 54；Long hole 56；Front end 58；Circuit substrate 60；LED62；Light spreads structure
Part 64；End (the first fastener) 66；Brush retainer 70；Long side axis L.
Claims (8)
1. a kind of power tool, has power part inside the shell, wherein
The shell has:
First shell；
Second housing portion can be displaced relative to first shell；
Fixed mechanism is used to the second housing portion being fixed on first shell；
Inside enters opening, is used for the inside into the shell；And
Lid is clamped between first shell and the second housing portion by the fixed mechanism after fixed, to close
It closes the inside and enters opening,
The fixed mechanism when being rotated to first direction, to far from first shell direction be displaced, to it is described
When the reversed second direction of first direction rotates, it is displaced to the direction close to first shell,
The fixed mechanism to the first direction rotate and to far from first shell direction be displaced when, with institute
Second housing portion is stated to engage on the separate direction, thus make the second housing portion to the separate direction displacement with
The clamping is released, the lid can be removed between first shell and the second housing portion,
The fixed mechanism to the second direction rotate and to close to first shell direction displacement when, with institute
Second housing portion is stated to engage on the close direction, so that it is displaced the second housing portion to the close direction,
The lid is clamped between first shell and the second housing portion.
2. power tool according to claim 1, wherein
The fixed mechanism is fixing screws, which is screwed together in first shell, and to the first direction
Unscrew when rotation, is tightened when being rotated to the second direction.
3. power tool according to claim 2, wherein
The fixing screws have axle portion and head,
The second housing portion includes insertion hole, inserts for the axle portion；Recess portion connect and stores with the insertion hole
The head；Screw head holding section is configured to cover a part on the head, and the head is maintained at described recessed
In portion,
When the fixing screws helical rotation is unscrewed, the head of the fixing screws is sticked in the screw head engaging
Portion, so that the second housing portion be made to be displaced to the separate direction.
4. power tool according to claim 3, wherein
The screw head holding section is in the ring-type with central opening, can be inserted into tool by the central opening to carry out
The helical rotation of the fixing screws operates.
5. power tool according to any one of claim 2 to 4, wherein
First shell has the internal stretch portion of the resin screwed togather for the fixing screws, and the fixing screws are stubborn
Enter the tapping screw in the internal stretch portion.
6. power tool according to any one of claim 1 to 5, wherein
First shell has the first fastener, and the second housing portion has second engaged with first fastener
Fastener,
By the engaging of first fastener and second fastener, thus to the second housing portion relative to described
One shell is limited in the displacement range that the separate side shifts up, in the displacement range, the fixed machine
Structure will not be completely disengaged from first shell.
7. power tool according to claim 6, wherein
Second fastener is the locking screw for being screwed together in the second housing portion, and first shell has storage institute
The long hole of the front end of locking screw is stated, the end of the long hole becomes first fastener.
8. according to claim 1 to 7 any one of described in power tool, wherein
The power part is the commutator motor with brush, the brush be configured at can by it is described it is internal enter opening come
The position replaced.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017064925 | 2017-03-29 | ||
| JP2017-064925 | 2017-03-29 | ||
| PCT/JP2018/011283 WO2018180835A1 (en) | 2017-03-29 | 2018-03-22 | Power tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110520251A true CN110520251A (en) | 2019-11-29 |
| CN110520251B CN110520251B (en) | 2022-09-20 |
Family
ID=63675879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880022484.6A Active CN110520251B (en) | 2017-03-29 | 2018-03-22 | Power tool |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JP6581725B2 (en) |
| KR (1) | KR102303876B1 (en) |
| CN (1) | CN110520251B (en) |
| DE (1) | DE112018001786T5 (en) |
| GB (1) | GB2573953B (en) |
| TW (1) | TWI677412B (en) |
| WO (1) | WO2018180835A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7278063B2 (en) * | 2018-11-30 | 2023-05-19 | 株式会社マキタ | Electric tool |
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| EP2216114B1 (en) * | 2009-02-05 | 2013-08-28 | Techtronic Power Tools Technology Limited | Power tool chuck assembly with hammer mechanism |
| CN103101040B (en) * | 2011-11-14 | 2015-04-22 | 苏州宝时得电动工具有限公司 | Power tool |
| CN103624749B (en) * | 2012-08-28 | 2016-08-03 | 苏州宝时得电动工具有限公司 | Power tool and the operational approach of replacing this power tool work head |
| CN205630516U (en) * | 2016-01-29 | 2016-10-12 | 苏州宝时得电动工具有限公司 | Hand electric tool machine |
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2018
- 2018-03-22 WO PCT/JP2018/011283 patent/WO2018180835A1/en active Application Filing
- 2018-03-22 CN CN201880022484.6A patent/CN110520251B/en active Active
- 2018-03-22 GB GB1912066.6A patent/GB2573953B/en active Active
- 2018-03-22 DE DE112018001786.9T patent/DE112018001786T5/en active Pending
- 2018-03-22 KR KR1020197026930A patent/KR102303876B1/en active IP Right Grant
- 2018-03-22 JP JP2018527822A patent/JP6581725B2/en active Active
- 2018-03-28 TW TW107110612A patent/TWI677412B/en active
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| JPS5894918U (en) * | 1981-12-20 | 1983-06-28 | 株式会社富士通ゼネラル | Screw prevention structure |
| JP2003191180A (en) * | 2001-10-19 | 2003-07-08 | Makita Corp | Electric tool |
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Also Published As
| Publication number | Publication date |
|---|---|
| GB2573953A (en) | 2019-11-20 |
| TW201900356A (en) | 2019-01-01 |
| JP6581725B2 (en) | 2019-09-25 |
| KR20190116429A (en) | 2019-10-14 |
| KR102303876B1 (en) | 2021-09-17 |
| GB201912066D0 (en) | 2019-10-09 |
| CN110520251B (en) | 2022-09-20 |
| DE112018001786T5 (en) | 2019-12-19 |
| GB2573953B (en) | 2022-04-20 |
| WO2018180835A1 (en) | 2018-10-04 |
| JPWO2018180835A1 (en) | 2019-04-04 |
| TWI677412B (en) | 2019-11-21 |
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