WO2018221262A1 - Outil électrique - Google Patents

Outil électrique Download PDF

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Publication number
WO2018221262A1
WO2018221262A1 PCT/JP2018/019249 JP2018019249W WO2018221262A1 WO 2018221262 A1 WO2018221262 A1 WO 2018221262A1 JP 2018019249 W JP2018019249 W JP 2018019249W WO 2018221262 A1 WO2018221262 A1 WO 2018221262A1
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WO
WIPO (PCT)
Prior art keywords
motor
communication adapter
tool
driving
hammer drill
Prior art date
Application number
PCT/JP2018/019249
Other languages
English (en)
Japanese (ja)
Inventor
真司 小野田
斉 飯田
英暉 辻
正規 古澤
Original Assignee
株式会社マキタ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社マキタ filed Critical 株式会社マキタ
Priority to CN201890000769.5U priority Critical patent/CN211193757U/zh
Priority to DE212018000199.5U priority patent/DE212018000199U1/de
Publication of WO2018221262A1 publication Critical patent/WO2018221262A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/04—Handles; Handle mountings
    • B25D17/043—Handles resiliently mounted relative to the hammer housing
    • 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
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0046—Devices for removing chips by sucking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B23Q11/0071—Devices for removing chips dust collectors for hand tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/003—Crossed drill and motor spindles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/061—Swash-plate actuated impulse-driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/245—Spatial arrangement of components of the tool relative to each other

Definitions

  • the present invention relates to a power tool, and in particular, a power tool including a tip tool driven to rotate and / or strike by a motor, and a communication adapter for operating an external device in conjunction with driving of the motor.
  • a power tool including a tip tool driven to rotate and / or strike by a motor, and a communication adapter for operating an external device in conjunction with driving of the motor.
  • an electric tool such as a hammer or a hammer drill
  • dust and cutting waste are generated, so connect the power tool's bit vicinity (for example, a dust collection cup that covers the hammer bit and drill bit) and external equipment such as a dust collector in advance with a hose.
  • the drilling operation and the chipping operation are performed while operating the external device (see Patent Document 1).
  • the hose is connected in this way, the generated dust, cutting waste, and the like can be directly sucked from the vicinity of the bit of the electric tool, so that the generated dust, cutting waste, and the like can be suppressed from being scattered in the work place.
  • Japanese Patent Application Laid-Open No. 2012-071218 discloses a technique for operating / stopping the dust collector in conjunction with the operation / stopping of the electric tool. According to this technique, it is not necessary for the operator to individually switch the operation / stop of the electric tool and the operation / stop of the dust collector. Therefore, the workplace environment can be improved without deteriorating the workability associated with this switch operation.
  • the present invention is intended to solve such a problem, and an object of the present invention is to be able to arrange a communication adapter at an optimal position even if the power tool is small.
  • 1st invention is an electric tool provided with the motor, the tip tool driven so that a striking operation and / or rotation operation may be carried out by the motor, and the communication adapter for operating an external apparatus in conjunction with the drive of the motor .
  • the motor is arranged such that the axis of the drive shaft intersects the axis of the tip tool in a side view of the electric tool.
  • the communication adapter is disposed below the motor.
  • the communication adapter can be arranged at an optimum position even if the power tool is small.
  • the second invention is the electric tool according to the first invention, and includes a battery pack as a power source.
  • the communication adapter is disposed above the battery pack.
  • the cable for electrically connecting the communication adapter and the battery pack can be shortened.
  • a motor a tip tool driven so as to perform a striking motion and / or a rotational motion by the motor, a motion conversion mechanism provided on an intermediate shaft disposed in parallel to the tip tool,
  • An electric tool including a communication adapter for operating an external device in conjunction with driving of a motor.
  • the communication adapter is disposed at a rear position of the striking mechanism that strikes the tip tool by the driving force of the motor converted by the motion conversion mechanism.
  • the communication adapter can be arranged at an optimum position even if the power tool is small.
  • the fourth invention is the electric tool according to the third invention, and includes a motor for driving the tip tool.
  • the communication adapter is disposed above the motor.
  • the communication adapter can be arranged at a more optimal position even if the power tool is small.
  • a fifth invention is an electric tool comprising a motor, a tip tool driven so as to perform a striking operation and / or a rotating operation by the motor, and a communication adapter for operating an external device in conjunction with the driving of the motor.
  • the motor is arranged such that the axis of the drive shaft is parallel to the axis of the tip tool in a side view of the electric tool.
  • the communication adapter is disposed at a rear position of the motor.
  • the communication adapter can be arranged at an optimal position.
  • the sixth invention is the electric power tool according to the fifth invention, comprising a hand grip having a trigger for driving the motor.
  • the communication adapter is disposed above the hand grip.
  • the communication adapter can be arranged at a more optimal position even if the power tool is small.
  • a seventh invention is an electric tool including a motor, a tip tool driven so as to perform a striking operation and / or a rotating operation by the motor, and a communication adapter for operating an external device in conjunction with the driving of the motor.
  • the communication adapter is an electric tool arranged on a side that is prevented from vibration caused by driving and / or striking operation of the motor.
  • An eighth invention is an electric tool including a motor, a tip tool driven so as to perform a striking operation and / or a rotating operation by the motor, and a communication adapter for operating an external device in conjunction with the driving of the motor.
  • the external device is a dust collection attachment having a drive source capable of sucking dust and cutting waste. This dust collection attachment is detachable from the electric tool itself.
  • dust and cutting debris can be sucked by installing a removable dust collection attachment without providing a separate dust collector.
  • the ninth invention is the power tool according to any one of the first to eighth inventions, and the external device is stopped after a predetermined time from the stop of the motor.
  • the ninth aspect of the invention for example, it is possible to prevent dust collected or cutting waste from remaining in the hose connecting the dust cup and the dust collector.
  • FIG. 1 is a side view of a hammer drill according to Embodiment 1.
  • FIG. 1 it is a figure which shows the state which absorbed the vibration.
  • FIG. 1 it is the longitudinal cross-sectional view of the state which mounted
  • 6 is a longitudinal sectional view of a hammer drill according to Embodiment 2.
  • FIG. It is a longitudinal cross-sectional view of the dust collection attachment which can be mounted
  • Example 1 Example 1 of the present invention will be described with reference to FIGS.
  • “hammer drill 1” and “drill bit 80” will be described as examples of “power tool” and “tip tool”.
  • up”, “down”, “front”, “rear”, “left”, “right” refers to the directions of “up”, “down”, “front”, “rear”, “left”, “right” described in the above-described drawings. When up, down, front, back, left, right are shown. The same applies to Examples 2 to 3 described later.
  • the hammer drill 1 mainly includes a main body housing 10 that forms an outline of the hammer drill 1, a motor housing 30 in which a motor (brushless motor) 32 is assembled below, and a grip portion 42.
  • a hand grip 40 assembled to the rear of the main body housing 10 and a battery mounting portion 50 assembled so as to straddle the motor housing 30 and the hand grip 40 so that two battery packs 70 can be mounted.
  • the motor 32 is electrically connected to a controller 60 described later.
  • a motor 32 is assembled in the motor housing 30.
  • the motor 32 is assembled in the motor housing 30 so that the axis of the drive shaft (output shaft) 34 intersects the axis of a drill bit 80 described later in a side view of the hammer drill 1. .
  • the motion conversion mechanism 12, the striking mechanism 14, the power transmission mechanism 16, and the motor housing 30 are provided with three compression springs 18 (two on the upper side so as to straddle the main body housing 10 and the battery mounting portion 50. In addition, it is elastically assembled via a total of three compression springs 18) on the lower side.
  • FIG. 1 shows an initial state before the hammer drill 1 operates. In this initial state, the three compression springs 18 are assembled in a slightly compressed state.
  • FIG. 2 shows an operation state after the hammer drill 1 is operated. In this operation state, the three compression springs 18 are greatly compressed and absorb vibration.
  • the hand grip 40 is assembled with a trigger 44 that turns on an internal switch 46 when an operator performs a pulling operation.
  • the projecting portions 52 and 54 projecting downward are formed on the front and rear sides of the battery mounting unit 50. Further, on the lower surface 50c of the battery mounting portion 50, two battery packs 70 serving as a power source can be mounted so as to be arranged in the front-rear direction so as to be sandwiched between the front and rear projecting portions 52, 54.
  • a controller 60 to be described later
  • the two battery packs 70 are electrically connected. Therefore, power is supplied to the hammer drill 1.
  • the front battery pack 70 is mounted on the battery mounting portion 50 so as to be positioned immediately below the motor 32.
  • the front battery pack 70 is configured such that its front side is covered with the front overhanging portion 52.
  • the rear battery pack 70 is configured such that its rear side is covered by the rear protruding portion 54.
  • the lower surfaces 52a and 54a of the overhang portions 52 and 54 are set so as to be positioned slightly below the lower surfaces 70a of the two battery packs 70. Therefore, even if the hammer drill 1 is dropped, these overhang portions 52 and 54 protect the two battery packs 70. Therefore, damage to the two battery packs 70 can be suppressed.
  • the mounting of the battery pack 70 referred to here is an assembly in which the battery pack 70 can be attached to or detached from the battery mounting portion 50. This attachment is performed by sliding the battery pack 70 from the left side to the right side of the lower surface 50c of the battery mounting portion 50 and locking the battery pack 70 that has been slid by a lock mechanism (not shown).
  • a controller 60 is assembled inside the battery mounting unit 50.
  • the controller 60 is composed of an aluminum case containing a circuit board (all not shown) on which FETs, capacitors, microcomputers, LEDs and the like corresponding to the coils of the motor 32 are mounted.
  • the controller 60 includes a microcomputer (not shown) including a CPU and a memory.
  • This memory includes semiconductor memory such as RAM, ROM, and flash memory.
  • various programs and data for realizing various functions of the hammer drill 1 are stored.
  • Various functions of the hammer drill 1 are realized by the CPU executing various programs stored in the memory.
  • the various functions realized by the controller 60 are not limited to software processing, and some or all of the functions may be realized using hardware by combining a logic circuit, an analog circuit, or the like.
  • the battery mounting unit 50 is provided with a connector 62 electrically connected to the controller 60.
  • the connector 62 is disposed below the motor 32, above the front battery pack 70, and at the front position of the controller 60.
  • a communication adapter 64 can be attached to (detached from) the connector 62 via an adapter insertion port 50 a formed on the right side surface of the battery attachment portion 50.
  • the communication adapter 64 can be attached to the connector 62 in this manner, the communication adapter 64 is disposed at a position below the motor 32, above the front battery pack 70, and at a position in front of the controller 60. Will be. With this arrangement, the communication adapter 64 is arranged with respect to the motor 32 via the two compression springs 18. That is, the communication adapter 64 is disposed on the side that is prevented from vibration from the drive of the motor 32.
  • the controller 60 and the communication adapter 64 are electrically connected. Further, the battery mounting portion 50 is provided with a cap 50b that covers the adapter insertion port 50a. Therefore, the communication adapter 64 attached to the connector 62 can be protected from dust and water droplets.
  • the hammer drill 1 is configured in this way.
  • the operation of the hammer drill 1 described above will be described.
  • an operator (not shown) performs an operation of pulling the trigger 44 while holding the grip portion 42 of the hand grip 40.
  • the operation of pulling the trigger 44 is converted into an electrical signal (ON signal of the trigger 44) via the switch 46 and output to the controller 60.
  • the drive shaft 34 of the motor 32 is rotated by the ON signal of the trigger 44 input to the controller 60.
  • the rotational force of the drive shaft 34 of the motor 32 is converted to a linear force in which the piston 20b reciprocates back and forth in the cylinder 20 via the motion conversion mechanism 12.
  • the converted linear force is transmitted to the drill bit 80 via the striking mechanism 14. That is, since the striker 22 also reciprocates back and forth in the cylinder 20 through the pressure fluctuation of the air chamber 20a in the cylinder 20 (the action of the air spring), the striker 22 that has reciprocated collides with the impact bolt 24 (blows). ) Will be repeated. Therefore, this repeated collision is transmitted to the drill bit 80 as an impact force through the impact bolt 24.
  • This description corresponds to the “hitting operation” described in the claims.
  • the dust collecting cup 90 can be attached to the hammer drill 1 operating in this way (see FIG. 3).
  • the dust collecting cup 90 is mainly communicated with a first cylindrical portion 92 inserted into an operation sleeve 82 assembled to the front end of the main body housing 10 and a front end (tip) of the first cylindrical portion 92.
  • the second cylindrical portion 94 covers the periphery of the drill bit 80.
  • the second cylindrical portion 94 is made of an elastic bellows-like resin member. Therefore, the length of the second cylindrical portion 94 can be shortened with the progress of the drilling depth of the material (not shown) in the drill bit 80. Therefore, during the operation of the hammer drill 1, the periphery of the drill bit 80 can always be covered by the second cylindrical portion 94.
  • a third cylindrical portion 96 that is inclined downward toward the rear side is formed. The dust collection cup 90 is configured in this way.
  • a hose 98 of a stationary dust collector (not shown) can be inserted into the opening 96a of the third cylindrical portion 96. Therefore, when the dust collector hose 98 is inserted into the opening 96 a and the dust collector is operated, the dust and cutting waste discharged by the work by the hammer drill 1 can be sucked through the hose 98.
  • This dust collector corresponds to an “external device” recited in the claims.
  • a connector electrically connected to the controller is provided inside the dust collector.
  • the communication adapter (both not shown) can be attached (can be inserted and removed) to this connector through an adapter insertion port formed on the side surface of the dust collector. Therefore, when a communication adapter is attached to this connector, the controller and the communication adapter are electrically connected in the same manner as the hammer drill 1.
  • the communication adapter 64 of the hammer drill 1 and the communication adapter of the dust collector can be electrically connected via wireless communication. Therefore, various signals (for example, a linked operation command based on the driving of the motor 32 and a linked stop command based on the stop of the motor 32) can be transmitted and received between the controller 60 of the hammer drill 1 and the controller of the dust collector. Yes.
  • the communication adapter of the dust collector receives the linked operation command from the communication adapter 64 of the hammer drill 1, the received linked operation command is output to the controller of the dust collector. Thereby, the controller of a dust collector will drive a motor.
  • the communication adapter of the dust collector receives the interlock stop command from the communication adapter 64 of the hammer drill 1, it outputs this received interlock stop command to the controller of the dust collector. Thereby, the controller of the dust collector stops the motor. In this way, an interlocking operation between the hammer drill 1 and the dust collector is realized.
  • the dust collector controller may appropriately determine when to stop the motor. For example, it may be stopped immediately after an interlock stop command is input. Further, for example, after the interlock stop command is input, it may be stopped after a predetermined time. That is, after the motor 32 of the hammer drill 1 is stopped, the dust collector motor may be continuously driven for a predetermined time.
  • the communication adapter 64 of the hammer drill 1 and the communication adapter of the dust collector are set in a state in which one-to-one wireless communication is possible. Both the communication adapters 64 need to be paired.
  • the adapter adapter (not shown) is provided in the communication adapter 64 of the hammer drill 1, and the adapter switch is also provided in the communication adapter of the dust collector.
  • the pairing is performed as follows. First, when an operator turns on the adapter switch of the communication adapter of the dust collector, the communication adapter is set in a pairing standby state. Thereafter, when the operator turns on the adapter switch of the communication adapter 64 of the hammer drill 1, predetermined data communication for pairing is performed between the two communication adapters 64. As a result, pairing of the two communication adapters 64 is performed. Is completed.
  • each communication adapter 64 is not limited to pairing and transmission / reception of interlocking commands, but can also transmit / receive various other information.
  • the hammer drill 1 is configured as described above.
  • the motor 32 is arranged inside the motor housing 30 so that the shaft center of the drive shaft (output shaft) 34 intersects the shaft center of a drill bit 80 described later in a side view of the hammer drill 1. It is assembled to.
  • the communication adapter 64 is disposed below the motor 32. Therefore, even if the power tool is a small tool such as the hammer drill 1, the communication adapter 64 can be arranged at an optimal position.
  • the hammer drill 1 includes the battery pack 70 as a power source.
  • the communication adapter 64 is disposed above the battery pack 70. Therefore, the cable that electrically connects the communication adapter 64 and the battery pack 70 can be shortened.
  • the communication adapter 64 is disposed on the side where vibration is prevented from driving the motor 32. Therefore, it is possible to prevent an adverse effect associated with the vibration generated by driving the motor 32.
  • the dust collector is stopped after a predetermined time after the interlock stop command is input. Therefore, it is possible to prevent dust and cutting dust collected from remaining in the hose 98 connecting the dust collection cup 90 and the dust collector.
  • Example 2 of the present invention will be described with reference to FIGS.
  • the hammer drill 101 of Example 2 is a form in which the motion conversion mechanism 112 is a swash type.
  • members having the same configurations as those described in the first embodiment are denoted by the same reference numerals in the drawings, and redundant description is omitted. The same applies to Example 3 described later.
  • the hammer drill 101 also mainly includes a main body housing 110 that forms an outline thereof, a motor housing 130 in which a motor (brushless motor) 132 is assembled below, and a grip portion 142.
  • a hand grip 140 assembled to the rear of the main body housing 110 and a battery mounting portion 150 assembled so as to straddle the motor housing 130 and the hand grip 140 so that two battery packs 70 can be mounted. Has been.
  • a motion conversion mechanism 112 provided on an intermediate shaft 136 that is arranged in parallel to a drill bit 180 described later and is rotated by the rotational force of the motor 132, and a drill bit 180 described later are struck.
  • a striking mechanism 114 that rotates and a power transmission mechanism 116 that rotates a drill bit 180, which will be described later, are assembled (see FIG. 4).
  • a motor 132 is assembled inside the motor housing 130. The motor 132 is assembled inside the motor housing 130 so that the axis of the drive shaft (output shaft) 134 intersects the axis of a drill bit 180 (to be described later) in a side view of the hammer drill 101. .
  • the term “intersection” as used herein means that both axes are not parallel.
  • the lower part of the motor 132 is positioned forward from the upper part of the motor 132.
  • the motor 132 is tilted. Accordingly, since the motor 132 can be disposed in front of the hammer drill 101, the controller 60 and the two battery packs 70 can also be disposed in front of the hammer drill 101. Therefore, it is possible to prevent the center of gravity of the hammer drill 101 from being rearward. Therefore, the operability of the hammer drill 101 can be improved.
  • the assembly of the motor 132 is not limited to the inclination described above, and the motor 132 may be assembled so that the axis of the drive shaft 134 of the motor 132 is orthogonal to the axis of the drill bit 180. .
  • the motion conversion mechanism 112, the striking mechanism 114, the power transmission mechanism 116, and the motor housing 130 (motor 132) are elastically assembled via a compression spring 118 so as to straddle the main body housing 110 and the battery mounting portion 150. It has become.
  • the main body housing 110 is provided with a connector 62 that is electrically connected to the controller 60. Specifically, as apparent from FIG. 4, the connector 62 is disposed at a position behind the striking mechanism 114 that strikes the drill bit 180 by the driving force of the motor 132 converted by the motion converting mechanism 112 and above the motor 132. Placed in position.
  • a communication adapter 64 can be attached to (detached from) the connector 62 via an adapter insertion port 110 a formed on the right side surface of the main body housing 110.
  • the communication adapter 64 can be attached to the connector 62 in this way, the communication adapter 64 is disposed at the rear position of the striking mechanism 114 and at the upper position of the motor 132.
  • the controller 60 and the communication adapter 64 are electrically connected. Further, the main body housing 110 is provided with a cap (not shown) that covers the adapter insertion slot 110a. Therefore, the communication adapter 64 attached to the connector 62 can be protected from dust and water droplets.
  • the hand grip 140 is assembled with a trigger 144 that turns on an internal switch 146 when an operator performs a pulling operation.
  • two battery packs 70 serving as a power source can be mounted on the lower surface 150c of the battery mounting portion 150 so as to be lined up and down.
  • the controller 60 and the two battery packs 70 are electrically connected. Therefore, power is supplied to the hammer drill 101.
  • the front battery pack 70 is mounted on the battery mounting portion 150 so as to be positioned behind the motor 132.
  • the front battery pack 70 has a front side covered with a motor housing 130. Therefore, even if the hammer drill 101 is dropped, the motor housing 130 protects the battery pack 70 on the front side. Accordingly, damage to the front battery pack 70 can be suppressed.
  • the controller 60 is assembled inside the battery mounting unit 150. The hammer drill 101 is configured in this way.
  • an operator performs an operation of pulling the trigger 144 while holding the grip 142 of the hand grip 140. Then, the operation of pulling the trigger 144 is converted into an electrical signal (ON signal of the trigger 144) via the switch 146 and output to the controller 60. Then, the drive shaft 134 of the motor 132 is rotated by the ON signal of the trigger 144 input to the controller 60.
  • the converted linear force is transmitted to the drill bit 180 via the striking mechanism 114. That is, since the striker 122 also reciprocates back and forth in the piston cylinder 138b through the pressure fluctuation (the action of the air spring) in the air chamber 120a in the piston cylinder 138b, the reciprocating striker 122 collides with the impact bolt 124. (Blow) will be repeated. Therefore, this repeated collision is transmitted to the drill bit 180 as an impact force through the impact bolt 124.
  • This description corresponds to the “hitting operation” described in the claims.
  • the hammer drill 101 operating in this way can be fitted with a dust collection attachment 190 (see FIGS. 4 to 6).
  • This dust collection attachment 190 is a known one that can be attached to or detached from the hammer drill 101, and a main body housing 192 having a dust collection fan 192a assembled therein, a main body housing 192 connected to the main body housing 192, and a drill. It is comprised from the substantially L-shaped cylinder part 194 which has the opening 194c in which the front-end
  • the motor 192 b of the dust collection attachment 190 is driven, the dust and cutting waste discharged by the work by the hammer drill 101 can be sucked through the cylindrical portion 194.
  • the dust collection attachment 190 corresponds to an “external device” recited in the claims.
  • this cylinder part 194 is provided with the expandable bellows-like resin member.
  • two cylinders 194a and 194b are provided outside the cylinder part 194, and one cylinder 194a is inserted into the other cylinder 194b. Therefore, the length of the dust collection attachment 190 can be shortened as the drilling depth of a material (not shown) in the drill bit 180 progresses. Therefore, during the operation of the hammer drill 101, the periphery of the drill bit 180 can always be covered by the dust collection attachment 190 (cylinder portion 194a).
  • a connector 192d that is electrically connected to a controller (not shown) is provided in the same manner as the dust collector described in the first embodiment.
  • a communication adapter 192f can be attached to (detached from) the connector 192d via an adapter insertion port 192e formed on the side surface of the main body housing 192.
  • This communication adapter 192f is the same as the communication adapter of the dust collector described in the first embodiment.
  • the interlocking operation of the hammer drill 101 and the dust collection attachment 190 can be realized.
  • the power input terminal 192g of the dust collection attachment 190 is connected to the power output terminal 130a of the hammer drill 101 that is electrically connected to the battery pack 70. . Therefore, power can be supplied to the controller, motor 192b, and communication adapter 192f of the dust collection attachment 190.
  • the dust collection attachment 190 is configured in this way.
  • the hammer drill 101 according to the second embodiment of the present invention is configured as described above. According to this configuration, the communication adapter 64 is disposed at the rear position of the striking mechanism 114. Therefore, even if the power tool is a small tool such as the hammer drill 101, the communication adapter 64 can be arranged at an optimal position.
  • the hammer drill 101 is provided with the motor 132 that drives the drill bit 180.
  • the communication adapter 64 is disposed above the motor 132. Therefore, even if the power tool is small, such as the hammer drill 101, the communication adapter 64 can be arranged at a more optimal position.
  • the hammer drill 101 is equipped with the dust collection attachment 190 capable of sucking dust and cutting waste. Therefore, as described in the first embodiment, dust and cutting waste can be sucked without providing a separate dust collector.
  • the hammer drill 201 according to the third embodiment has a configuration in which the axial direction of the motor 232 is arranged sideways as compared with the hammer drill 101 according to the second embodiment described above.
  • the hammer drill 201 also mainly includes a main body housing 210 that forms an outer shell thereof, and a hand grip 240 that is assembled to the rear of the main body housing 210 so as to have a grip portion 242. Has been.
  • a motion conversion mechanism 212 provided on an intermediate shaft 236 that is arranged in parallel to a drill bit 280 described later and is rotated by the rotational force of the motor 232, and a drill bit 280 described later are struck.
  • a motor (brushless motor) 232 is assembled in the main body housing 210. The motor 232 is assembled to the rear of the inside of the main body housing 210 so that the shaft center of the drive shaft (output shaft) 234 is parallel to the shaft center of a drill bit 280 described later in a side view of the hammer drill 201. It has been.
  • the main body housing 210 is provided with a connector 62 electrically connected to a controller (not shown). Specifically, as apparent from FIG. 7, the connector 62 is disposed at the rear position of the motor 232 and at the upper position of the hand grip 240.
  • a communication adapter 64 can be attached to (detached from) the connector 62 via an adapter insertion port 210 a formed on the right side surface of the main body housing 210. Since the communication adapter 64 can be attached to the connector 62 in this way, the communication adapter 64 is disposed at the rear position of the motor 232 and at the upper position of the hand grip 240.
  • the main body housing 210 is provided with a cap (not shown) that covers the adapter insertion opening 210a. Therefore, the communication adapter 64 attached to the connector 62 can be protected from dust and water droplets.
  • a controller (not shown) is assembled inside the main body housing 210.
  • the handgrip 240 is assembled with a trigger 244 that turns on an internal switch (not shown) when the operator performs a pulling operation.
  • the hammer drill 201 is supplied with power from a commercial power source (AC 100 V) such as an outlet (not shown). The hammer drill 201 is configured in this way.
  • an operator performs an operation of pulling the trigger 244 while holding the grip 242 of the hand grip 240. Then, the operation of pulling the trigger 244 is converted into an electrical signal (ON signal of the trigger 244) via the switch and output to a controller (not shown). Then, the drive shaft 234 of the motor 232 is rotated by the ON signal of the trigger 244 input to this controller (not shown).
  • the converted linear force is transmitted to the drill bit 280 via the striking mechanism 214. That is, since the striker 222 also reciprocates back and forth in the piston cylinder 238b through the pressure fluctuation (the action of the air spring) of the air chamber 220a in the piston cylinder 238b, the reciprocating striker 222 collides with the impact bolt 224. (Blow) will be repeated. Therefore, this repeated collision is transmitted to the drill bit 280 as an impact force through the impact bolt 224.
  • This description corresponds to the “hitting operation” described in the claims. Therefore, it is possible to drill a gypsum material such as concrete or brick through the drill bit 280.
  • the dust collecting attachment 190 can be attached to the hammer drill 201 that operates in this manner, like the hammer drill 101 of the second embodiment. Therefore, in the third embodiment, similarly to the second embodiment, when the motor 192b of the dust collection attachment 190 is driven, the dust and cutting waste discharged by the work by the hammer drill 201 can be sucked through the cylindrical portion 194. . Also in this third embodiment, as in the second embodiment, the interlocking operation of the hammer drill 201 and the dust collection attachment 190 can be realized.
  • the hammer drill 201 according to the third embodiment of the present invention is configured as described above. According to this configuration, the communication adapter 64 is disposed at the rear position of the motor 232. Therefore, even if the power tool is a small tool such as the hammer drill 201, the communication adapter 64 can be arranged at an optimal position.
  • the communication adapter 64 is disposed above the hand grip 240. Therefore, even if the power tool is a small tool such as the hammer drill 201, the communication adapter 64 can be arranged at a more optimal position.
  • the present invention is not limited to this, and the external device may be various devices capable of jetting water, emitting light, and emitting sound. In that case, in conjunction with the hammer drill 1, 101, 201, water is ejected from an external device, light is emitted, or a sound is emitted.
  • the hammer drills 1, 101, 201 have been described as examples of the electric tool.
  • the present invention is not limited to this, and a hammer may be used as an example of the power tool.
  • the drill bits 80, 180, and 280 as the tip tools are replaced with hammer bids, and only the striking operation is performed.
  • the present invention is not limited to this, and two dust collectors may be used.
  • a dust collection BOX that receives dust and cutting waste discharged by the work by the hammer drill 1 is provided, and the dust collection BOX and the two dust collectors are connected to each other via a hose 98. Then, the two dust collectors operate in conjunction with the operation of the hammer drill 1 as in the case of one dust collector.
  • the dust collection power of dust and cutting waste can be raised.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Power Tools In General (AREA)

Abstract

L'objectif de la présente invention est de fournir un adaptateur de communication à une position optimale même si l'outil électrique est petit. Un outil électrique (1) comprend un moteur (32), un outil de pointe (80) entraîné par le moteur (32) pour effectuer une opération de martelage et/ou une opération de rotation, et un adaptateur de communication (64) pour faire fonctionner un dispositif externe conjointement avec l'entraînement du moteur (32). Vu depuis le côté de l'outil électrique (1), le moteur (32) est disposé de telle sorte que l'axe d'un arbre d'entraînement (34) du moteur (32) croise l'axe de l'outil de pointe (80). L'adaptateur de communication (64) est disposé sous le moteur (32).
PCT/JP2018/019249 2017-05-30 2018-05-18 Outil électrique WO2018221262A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201890000769.5U CN211193757U (zh) 2017-05-30 2018-05-18 电动工具
DE212018000199.5U DE212018000199U1 (de) 2017-05-30 2018-05-18 Elektrisch angetriebenes Werkzeug

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017106528A JP6991743B2 (ja) 2017-05-30 2017-05-30 電動工具
JP2017-106528 2017-05-30

Publications (1)

Publication Number Publication Date
WO2018221262A1 true WO2018221262A1 (fr) 2018-12-06

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PCT/JP2018/019249 WO2018221262A1 (fr) 2017-05-30 2018-05-18 Outil électrique

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Country Link
JP (1) JP6991743B2 (fr)
CN (1) CN211193757U (fr)
DE (1) DE212018000199U1 (fr)
WO (1) WO2018221262A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015029962A (ja) * 2013-08-02 2015-02-16 株式会社マキタ 集塵機
JP2015150663A (ja) * 2014-02-17 2015-08-24 株式会社マキタ 集塵装置および集塵装置を備えた作業工具
JP2017087359A (ja) * 2015-11-11 2017-05-25 株式会社マキタ 電動作業機および作業機管理システム
JP2018079557A (ja) * 2016-11-04 2018-05-24 株式会社マキタ 電動工具

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07235784A (ja) * 1994-02-23 1995-09-05 Toshiba Corp 電子ユニットの支持構造
JPH0870256A (ja) * 1994-08-30 1996-03-12 Toshiba Corp 耐振動構造を有する通信機器
JP5618731B2 (ja) 2010-09-27 2014-11-05 株式会社マキタ 集塵機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015029962A (ja) * 2013-08-02 2015-02-16 株式会社マキタ 集塵機
JP2015150663A (ja) * 2014-02-17 2015-08-24 株式会社マキタ 集塵装置および集塵装置を備えた作業工具
JP2017087359A (ja) * 2015-11-11 2017-05-25 株式会社マキタ 電動作業機および作業機管理システム
JP2018079557A (ja) * 2016-11-04 2018-05-24 株式会社マキタ 電動工具

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JP6991743B2 (ja) 2022-01-13
JP2018202493A (ja) 2018-12-27
DE212018000199U1 (de) 2019-12-02
CN211193757U (zh) 2020-08-07

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