WO2014069369A1 - 電動工具 - Google Patents
電動工具 Download PDFInfo
- Publication number
- WO2014069369A1 WO2014069369A1 PCT/JP2013/078988 JP2013078988W WO2014069369A1 WO 2014069369 A1 WO2014069369 A1 WO 2014069369A1 JP 2013078988 W JP2013078988 W JP 2013078988W WO 2014069369 A1 WO2014069369 A1 WO 2014069369A1
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- WO
- WIPO (PCT)
- Prior art keywords
- power
- motor
- substrate
- body portion
- tip tool
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
- H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
- H02K11/05—Rectifiers associated with casings, enclosures or brackets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
- H02K7/145—Hand-held machine tool
Definitions
- the present invention relates to a power tool, and more particularly to a power tool that drives a motor using a commercial AC power source as a power source.
- an electric tool driven by electric power supplied from an AC power source to a motor for example, an impact driver
- the impact driver includes a film capacitor and a ferrite core for reducing electromagnetic noise, and includes a power supply circuit unit that converts AC power from an AC power source into DC power.
- the film capacitor and the ferrite core are housed in a handle unit. .
- the handle part is thicker and longer than necessary. Furthermore, since it is necessary to dispose the film capacitor and the ferrite core so as not to interfere with the signal line passing through the handle portion, the assemblability of the impact driver is poor.
- an object of the present invention is to provide an electric tool with which the handle portion can be made thin and short and the assemblability is improved.
- the present invention provides a motor, a body part for housing the motor, a board housing part for housing a board on which a control circuit for operating the motor is mounted, and one end connected to the body part.
- a housing having a handle portion connected to the substrate housing portion at the other end, a power cord extending from the substrate housing portion and connectable to an AC power source, and a noise removing component for removing noise,
- a power circuit unit for converting AC power supplied from the power cord into DC power, wherein the noise removing component provides the power tool housed in the board housing part .
- the grip portion of the handle portion can be made thin and short.
- the body portion is provided with a tip tool holding portion for holding a tip tool, and the motor and the tip tool holding portion are provided in the trunk portion along one direction in the order, and the noise removal is performed. It is preferable that the component is disposed at the one-direction side end portion in the substrate housing portion.
- the length of the electric tool in the direction in which the body portion, the handle portion, and the substrate housing portion are arranged can be shortened, and the electric tool can be made compact as a whole. Further, it is possible to prevent the substrate housing portion that houses the noise removal component from interfering with the operation during the work.
- the body portion is provided with a tip tool holding portion for holding a tip tool
- the motor and the tip tool holding portion are provided in the body portion along one direction in the order
- the substrate housing Preferably, the portion protrudes in the one direction, and the one-direction side end portion of the substrate housing portion is located on the motor side with respect to the tip tool holding portion.
- the protruding portion of the substrate housing portion does not hit the workpiece during the work, and the substrate housing portion can be prevented from interfering with the work.
- the body portion is provided with a tip tool holding portion for holding a tip tool, and the motor and the tip tool holding portion are provided in the body portion along one direction in the order, and the noise removal is performed. It is preferable that the component is disposed at an end portion on the side opposite to the one-direction side in the substrate housing portion.
- the length of the electric tool in the direction in which the body portion, the handle portion, and the substrate housing portion are arranged can be shortened, and the electric tool can be made compact as a whole.
- the noise removing component is disposed at a position substantially the same as the substrate or a position opposite to the substrate in the direction in which the body portion, the handle portion, and the substrate housing portion are arranged. It is preferable that
- the grip portion of the handle portion can be made thin and short.
- a pressing member that suppresses the shaking of the noise removing component is disposed in the substrate housing portion.
- the noise removal component can be prevented from shaking during the operation of the electric power tool.
- the noise eliminating component is a choke coil and a capacitor.
- the present invention is provided at a motor having a rotation shaft extending in the front-rear direction, a body part that accommodates the motor, a handle part extending from the body part, and an end part of the handle part opposite to the body part.
- a power tool including a housing having a protrusion protruding forward or / and rearward, a power cord extending from the protrusion and connectable to an AC power source, and a noise removing component for removing noise, The noise removing component provides a power tool accommodated in the protruding portion.
- the handle portion can be made thin and short.
- the projecting portion accommodates a power supply circuit portion that converts AC power supplied from the power cord into DC power and a substrate on which a control circuit that operates the motor is mounted.
- Sectional drawing of the impact driver in the 1st Embodiment of this invention The control block diagram of the impact driver in the 1st Embodiment of this invention. Sectional drawing of the impact driver in the 2nd Embodiment of this invention. The front view of the impact driver in the 3rd Embodiment of this invention.
- the impact driver 1 includes a housing 2, a motor 3, a gear mechanism 4, a hammer 5, an anvil unit 6, an inverter circuit unit 7, a control unit 8, a power cord 9, Consists mainly of.
- the housing 2 is made of resin and forms the outer shell of the impact driver 1, and is mainly composed of a substantially cylindrical body portion 21, a handle portion 22 extending from the body portion 21, and a substrate housing portion 23. ing.
- the body part 21 has a substantially cylindrical shape, and houses the motor 3, the gear mechanism 4, the hammer 5, and the anvil part 6 in this order.
- the anvil portion 6 side is defined as the front side
- the motor 3 side is defined as the rear side.
- the direction in which the handle portion 22 extends with respect to the body portion 21 is defined as the downward direction, and the opposite is defined as the upward direction.
- the front side in the drawing in FIG. 1 is defined as the right direction, and the opposite is defined as the left direction.
- a metal hammer case 24 in which the hammer 5 and the anvil part 6 are incorporated is disposed at the front side position in the body part 21.
- the hammer case 24 has a substantially funnel shape whose diameter gradually decreases toward the front, and an opening 24a is formed at the front end portion.
- the rear end surface of the body portion 21 is formed with a plurality of intake ports 21a for taking in outside air, and is shown on the side surface of the body portion 21 and outside the cooling fan 31 to be described later.
- a plurality of exhaust ports are formed.
- the handle portion 22 has a substantially cylindrical shape, and has an upper end connected to the body portion 21 and a lower end connected to the substrate housing portion 23.
- the handle portion 22 is provided with a trigger 25 which is an electronic switch, and the trigger 25 is connected to a switch mechanism 26 accommodated in the handle portion 22. Supply of electric power to the motor 3 and interruption are switched by the trigger 25.
- a forward / reverse switching switch (not shown), which is an electronic switch for switching the rotation direction of the motor 3, is provided at the connection portion between the handle portion 22 and the body portion 21 and immediately above the trigger 25.
- the substrate accommodating portion 23 accommodates the control portion 8, and the power cord 9 extends downward from the substrate accommodating portion 23.
- substrate accommodating part 23 has the protrusion part 23A which protrudes in the direction (front direction) which goes to the anvil part 6 from the motor 3.
- the front end portion of the protruding portion 23 ⁇ / b> A is configured not to protrude forward from the tip tool holding portion 61. That is, the front end portion of the projecting portion 23 ⁇ / b> A is located closer to the motor 3 than the tip tool holding portion 61.
- the width in the left-right direction of the substrate housing portion 23 is configured to be substantially equal to the width in the left-right direction of the body portion 21.
- the motor 3 is a brushless motor, and includes an output shaft 3A that extends in the front-rear direction, a rotor 3C that is fixed to the output shaft 3A and includes a plurality of permanent magnets 3B, and a plurality of coils 3D that are disposed so as to surround the rotor 3C. And a stator 3E.
- a cooling fan 31 is fixed to the front side portion of the output shaft 3A.
- the gear mechanism 4 is disposed in front of the motor 3, and the gear mechanism 4 is a reduction mechanism configured by a planetary gear mechanism having a plurality of gears, and reduces the rotation of the output shaft 3 ⁇ / b> A and transmits it to the hammer 5. is doing.
- the hammer 5 includes a pair of collision portions 51 at the front end. Further, the hammer 5 is urged forward by a spring 52 and is configured to be able to move backward against the urging force of the spring.
- the anvil portion 6 is disposed in front of the hammer 5 and mainly includes a tip tool holding portion 61 and an anvil 62.
- the tip tool holding portion 61 is formed in a cylindrical shape and is rotatably supported by the hammer case 24.
- a drill 61a into which a bit (not shown) is inserted is formed in the front tool holding portion 61 in the front-rear direction, and a chuck 61B for holding a bit (not shown) is provided at the front end portion of the tip tool holding portion 61. It has been.
- the anvil 62 is configured to be integrated with the tip tool holding portion 61 in the hammer case 24 at the rear of the tip tool holding portion 61, and is disposed at a counter electrode with respect to the rotation center of the tip tool holding portion 61. It has a colliding part 62A.
- the anvil 62 is hit.
- the hammer 5 moves backward while rotating against the urging force of the spring 52.
- the collision part 51 gets over the collision part 62A, the elastic energy stored in the spring 52 is released, the hammer 5 moves forward, and the collision part 51 and the collision part 62A collide again.
- the inverter circuit section 7 is composed of a MOSFET (Metal Magnetic force of an inverter circuit 7A composed of a switching element 7a such as an Oxide Semiconductor Field Effect Transistor (IGBT) or an IGBT (Insulated Gate Bipolar Transistor) and a sensor magnet (not shown) for detecting the rotational position of the rotor 3C or a permanent magnet 3B of the rotor 3C. And a Hall element 7B (FIG. 2) for detecting
- the control unit 8 is accommodated in the substrate accommodation unit 23.
- the controller 8 controls the rotational speed of the motor 3 by adjusting the amount of power supplied to the motor 3 according to the operation amount of the trigger 25.
- the detailed configuration of the control unit 8 will be described later.
- the power cord 9 supplies power to the control unit 8 by connecting to an AC power source (not shown).
- the control unit 8 includes a control circuit unit 8A and a power supply circuit unit 8B.
- the control circuit portion 8 ⁇ / b> A is disposed in the substrate housing portion 23 at a position closest to the handle portion 22.
- the control circuit unit 8A includes a control circuit board 80.
- the control circuit board 80 is provided with a rotational position detection circuit 81, a calculation unit 82, and a control signal output circuit 83. Yes.
- the rotational position detection circuit 81 detects the rotational position of the rotor 3C based on the signal from the hall element 7B and outputs it to the calculation unit 82.
- the calculation unit 82 is a central processing unit (CPU) for outputting a drive signal based on the processing program and data, a ROM for storing the processing program and control data, and temporary storage of data. RAM and a timer are provided.
- the calculation unit 82 generates a PWM signal based on the signal from the rotational position detection circuit 81 and outputs the PWM signal to the control signal output circuit 83.
- the control signal output circuit 83 outputs a PWM signal to the inverter circuit 7A.
- the calculation unit 82 is connected to the trigger 25 which is an electronic switch and a forward / reverse switching switch (not shown), and controls the number of rotations of the motor 3 according to the operation amount of the trigger 25 to switch forward / reverse switching (not shown). The direction of rotation of the motor 3 is switched according to the switching of the switch.
- the power supply circuit portion 8B is disposed in the board housing portion 23 and between the power cord 9 and the control circuit portion 8A, that is, below the control circuit portion 8A.
- the power supply circuit unit 8B includes a power supply circuit board 84.
- the power supply circuit board 84 includes a capacitor 85, a choke coil 86, a diode bridge 87, a film capacitor 88, and a switching power supply circuit 89. And are provided.
- the capacitor 85 and the choke coil 86 remove (reduce) noise generated by the inverter circuit 7A.
- the diode bridge 87 full-wave rectifies the AC power supplied from the power cord 9.
- the film capacitor 88 smoothes the full-wave rectified current.
- the AC 100V power source supplied from the power cord 9 connected to the AC power source 12 is rectified by the diode bridge 87 and then partially reduced to 18V by the switching power source circuit 89 and supplied to the control circuit unit 8A as a driving power source. Is done. The remainder is boosted to 140 V as a driving power source for the motor 3 and supplied to the inverter circuit 7A.
- the power supply circuit portion 8B is covered with a container 90, and the inside of the container 90 is filled with urethane. That is, each element of the power supply circuit unit 8B is fixed by urethane and at the same time is insulated, vibration-proof and waterproof.
- the capacitor 85, the diode bridge 87, and the switching power supply circuit 89 are arranged on a substrate in the container 90, and the choke coil 86 and the film capacitor 88 are outside the container 90 as shown in FIG. It is arrange
- the choke coil 86 and the film capacitor 88 are arranged at a position on the side opposite to the handle portion 22 with respect to the control circuit portion 8A (control circuit board 80) in the vertical direction.
- a pressing member 11 made of rubber or urethane is disposed around the choke coil 86 and the film capacitor 88, and the choke coil 86 and the film capacitor during the operation of the impact driver 1 are arranged.
- I'm holding 88 swings. That is, in the substrate housing portion 23 (projecting portion 23A), the control circuit portion 8A is disposed on the upper side, the power circuit portion 8B, the choke coil 86, and the film capacitor 88 are disposed below the control circuit portion 8A. It arrange
- a plurality of signal lines 10 extend from the control circuit unit 8A and the power supply circuit unit 8B, and are electrically connected to the switch mechanism 26 and the inverter circuit unit 7 through the handle unit 22.
- the operation of the impact driver 1 will be described.
- the motor 3 rotates at a rotational speed corresponding to the pulling margin.
- the cooling fan 31 also rotates to take outside air from the intake port 21a. The outside air cools the inverter circuit unit 7 and the motor 3 and is discharged to the outside through an exhaust port (not shown).
- the motor 3 rotates, the hammer 5 strikes the anvil 6 and a tip tool (not shown) rotates.
- the choke coil 86 and the film capacitor 88 are accommodated in the substrate accommodating portion 23, interference of the signal line 10 passing through the handle portion 22 can be prevented, and consequently the signal line 10 is disconnected. Can be prevented.
- the wiring of the signal line 10 in the handle portion 22 is facilitated, that is, the signal line 10 can be wired at the place where the conventional noise removing member is disposed, so that the assembly of the impact driver 1 can be improved.
- the grip portion of the handle portion 22 can be made thin and short.
- the vertical length of the impact driver 1 can be shortened, and the entire impact driver 1 can be reduced. Can be made compact. Further, it is possible to prevent the board accommodating portion 23 that accommodates the choke coil 86 and the film capacitor 88 from interfering with the operation during work. Furthermore, since the choke coil 86 and the film capacitor 88 are disposed in the vicinity (next to) the power supply circuit portion 8B to which they are connected, this wiring can be shortened, and the wiring can be facilitated and disconnection can be prevented. . Moreover, the vertical dimension of the board
- the projecting portion 23A since the front end portion of the projecting portion 23A is positioned on the motor 3 side with respect to the tip tool holding portion 61, the projecting portion 23A does not hit the workpiece during work, and the projecting portion 23A hinders the work. Can be prevented.
- the choke coil 86 and the film capacitor 88 are arranged at the position on the side opposite to the handle portion 22 with respect to the control circuit portion 8A (control circuit board 80) in the vertical direction, the signal line 10 in the handle portion 22 is disposed. Can be prevented, and as a result, disconnection of the signal line 10 can be prevented. Moreover, since the wiring of the signal line 10 in the handle portion 22 becomes easy, the assemblability of the impact driver 1 can be improved. Further, since the choke coil 86 and the film capacitor 88 are not disposed in the handle portion 22, the grip portion of the handle portion 22 can be made to have an appropriate thickness and can be shortened.
- the pressing member 11 is disposed around the choke coil 86 and the film capacitor 88 in the substrate housing portion 23, the choke coil 86 and the film capacitor 88 are prevented from shaking during the operation of the impact driver 1. be able to.
- the substrate housing portion 123 has a first protrusion 123A protruding forward and a second protrusion 123B protruding backward.
- the first protruding portion 123A accommodates the front side portions of the control circuit portion 8A and the power supply circuit portion 8B
- the second protruding portion 123B accommodates the choke coil 86 and the film capacitor 88.
- a pressing member 111 made of rubber or urethane is disposed around the choke coil 86 and the film capacitor 88.
- the same effect as the impact driver 1 of the first embodiment can be obtained. Furthermore, since the rear end portion of the second projecting portion 123B does not protrude rearward from the rear end portion of the body portion 21, the second projecting portion 123B does not interfere with the work.
- the width of the substrate housing portion 223 in the left-right direction is wider than the width of the body portion 21 in the left-right direction.
- the choke coil 86 and the film capacitor 88 are respectively disposed on the sides of the container 90 of the power supply circuit unit 8B in the left-right direction. That is, the choke coil 86 and the film capacitor 88 are disposed at the position on the side opposite to the handle portion 22 with respect to the control circuit portion 8A (control circuit board 80) in the vertical direction.
- a pressing member 211 made of rubber or urethane is disposed around the choke coil 86 and the film capacitor 88, respectively.
- the same effect as the impact driver 1 of the first embodiment can be obtained.
- the power tool of the present invention is not limited to the above-described embodiment, and various modifications and improvements can be made within the scope described in the claims.
- the impact driver 1 has been described as an electric tool.
- the electric power tool is not limited to an impact driver as long as the electric tool is mounted with a brushless motor and driven by an AC power supply.
- the shaking of the choke coil 86 and the film capacitor 88 is suppressed by the pressing member.
- a rib that supports the choke coil 86 and the film capacitor 88 is provided on the inner peripheral surface of the substrate housing portion 23, and the rib Accordingly, the choke coil 86 and the film capacitor 88 may be configured to suppress shaking.
- the choke coil 86 and the film capacitor 88 are arranged at the position on the side opposite to the handle portion 22 with respect to the control circuit portion 8A (control circuit board 80) in the vertical direction.
- the control circuit unit 8A control circuit board 80
- the choke coil 86 and the film capacitor 88 may be arranged in a direction other than the upper side of the control circuit unit 8A (control circuit board 80) in the vertical direction. This is because when arranged on the upper side of the control circuit unit 8A, the signal line from the control circuit unit 8A interferes with the choke coil 86 and the film capacitor 88, so that the assemblability is poor and there is a risk of disconnection or the like.
- the choke coil 86 and the film capacitor 88 may be disposed below the power supply circuit unit 8B.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
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- Electromagnetism (AREA)
- Portable Power Tools In General (AREA)
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Abstract
Description
Oxide Semiconductor Field Effect Transistor)やIGBT(Insulated Gate Bipolar Transistor)等スイッチング素子7aにより構成されるインバータ回路7Aと、ロータ3Cの回転位置検出用のセンサマグネット(不図示)或いはロータ3Cの永久磁石3Bの磁力を検出するホール素子7B(図2)とにより構成されている。制御部8は、基板収容部23内に収容されている。制御部8は、トリガ25の操作量に応じてモータ3に供給する電力量を調整することにより、モータ3の回転速度を制御している。制御部8の詳細な構成については後述する。電源コード9は、図示せぬ交流電源と接続することにより制御部8に電源を供給する。
Claims (9)
- モータと、
前記モータを収容する胴体部と、前記モータを動作させる制御回路が搭載される基板を収容する基板収容部と、一端が前記胴体部に接続し他端が前記基板収容部に接続しているハンドル部と、を有するハウジングと、
前記基板収容部から延び、交流電源に接続可能な電源コードと、
ノイズを除去するためのノイズ除去部品を有し、前記電源コードから供給される交流電力を直流電力に変換する電源回路部と、を有する電動工具であって、
前記ノイズ除去部品は、前記基板収容部に収容されていることを特徴とする電動工具。 - 前記胴体部には、先端工具を保持する先端工具保持部が設けられ、前記モータと前記先端工具保持部とは、当該順序で一方向に沿って前記胴体部に設けられ、
前記ノイズ除去部品は、前記基板収容部内において、前記一方向側端部に配置されていることを特徴とする請求項1に記載の電動工具。 - 前記胴体部には、先端工具を保持する先端工具保持部が設けられ、前記モータと前記先端工具保持部とは、当該順序で一方向に沿って前記胴体部に設けられ、
前記基板収容部は前記一方向に突出し、前記基板収容部の前記一方向側端部は、前記先端工具保持部よりも前記モータ側に位置することを特徴とする請求項1又は請求項2に記載の電動工具。 - 前記胴体部には、先端工具を保持する先端工具保持部が設けられ、前記モータと前記先端工具保持部とは、当該順序で一方向に沿って前記胴体部に設けられ、
前記ノイズ除去部品は、前記基板収容部内において、前記一方向側とは反対側の端部に配置されていることを特徴とする請求項1に記載の電動工具。 - 前記ノイズ除去部品は、前記胴体部と、前記ハンドル部と、前記基板収容部と、が並ぶ方向において、前記基板と略同じ位置、又は前記基板に対して反ハンドル部側の位置に配置されていることを特徴とする請求項1に記載の電動工具。
- 前記基板収容部には、前記ノイズ除去部品の揺れを押さえる押さえ部材が配置されていることを特徴とする請求項1に記載の電動工具。
- 前記ノイズ除去部品は、チョークコイル及びコンデンサであることを特徴とする請求項1に記載の電動工具。
- 前後方向に延びる回転軸を有するモータと、
前記モータを収容する胴体部と、前記胴体部から延びるハンドル部と、前記ハンドル部の前記胴体部の反対側の端部に設けられ前方又は/及び後方に突出する突出部と、を有するハウジングと、
前記突出部から延び、交流電源に接続可能な電源コードと、
ノイズを除去するためのノイズ除去部品を有する電動工具であって、
前記ノイズ除去部品は、前記突出部に収容されていることを特徴とする電動工具。 - 前記突出部には、前記電源コードから供給される交流電力を直流電力に変換する電源回路部と、前記モータを動作させる制御回路が搭載される基板とが収容されることを特徴とする請求項8に記載の電動工具。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201380056319.XA CN104755231B (zh) | 2012-10-29 | 2013-10-25 | 电动工具 |
US14/438,378 US10536056B2 (en) | 2012-10-29 | 2013-10-25 | Electric power tool |
EP13850862.7A EP2913158B1 (en) | 2012-10-29 | 2013-10-25 | Electrical power tool |
JP2014544481A JP6041164B2 (ja) | 2012-10-29 | 2013-10-25 | 電動工具 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2012237586 | 2012-10-29 | ||
JP2012-237586 | 2012-10-29 |
Publications (1)
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WO2014069369A1 true WO2014069369A1 (ja) | 2014-05-08 |
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PCT/JP2013/078988 WO2014069369A1 (ja) | 2012-10-29 | 2013-10-25 | 電動工具 |
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US (1) | US10536056B2 (ja) |
EP (1) | EP2913158B1 (ja) |
JP (1) | JP6041164B2 (ja) |
CN (1) | CN104755231B (ja) |
WO (1) | WO2014069369A1 (ja) |
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WO2018003369A1 (ja) * | 2016-06-30 | 2018-01-04 | 日立工機株式会社 | 電動工具 |
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JP6090581B2 (ja) * | 2013-09-28 | 2017-03-08 | 日立工機株式会社 | 電動工具 |
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EP3560062A4 (en) | 2016-12-23 | 2020-06-24 | Black & Decker Inc. | CORDLESS ELECTRIC TOOL SYSTEM |
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Also Published As
Publication number | Publication date |
---|---|
US10536056B2 (en) | 2020-01-14 |
EP2913158A1 (en) | 2015-09-02 |
CN104755231A (zh) | 2015-07-01 |
EP2913158B1 (en) | 2019-12-04 |
EP2913158A4 (en) | 2016-07-06 |
JPWO2014069369A1 (ja) | 2016-09-08 |
US20150288259A1 (en) | 2015-10-08 |
CN104755231B (zh) | 2017-06-06 |
JP6041164B2 (ja) | 2016-12-07 |
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