JP6436386B2 - Electric tool, electric tool operating device, and electric tool system - Google Patents

Description

  The present invention relates to a power tool, a power tool operating device, and a power tool system.

  Conventionally, various electric tools such as a drill driver and an impact driver using a motor capable of rotating in the forward and reverse directions have been proposed (see, for example, Patent Document 1).

JP 2012-76179 A

  By the way, in the electric power tool as described above, there are various usage methods depending on the work contents of the user such as screw tightening and drilling. For example, the required torque and rotational speed are different between the drilling operation and the screw tightening operation, or the rotational speed needs to be substantially constant as necessary. For this reason, it is necessary to use a power tool suitable for the drilling operation and a power tool suitable for the screw tightening operation. That is, it is necessary to change the electric tool according to various work contents, and there is room for improvement in terms of convenience.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a power tool, a power tool operating device, and a power tool system capable of improving convenience.

  In order to solve the above problems, an electric tool is an electric tool having a motor, a drive unit driven by the motor, and a control unit that performs drive control of the motor, and communicates with an external device and the external device. A main body side communication unit that outputs mode information for determining drive control of the motor by the control unit obtained by communication to the control unit, and the control unit is input via the main body side communication unit The drive control of the motor is performed based on the mode information.

  In order to solve the above problem, the power tool operating device includes an operating device side communication unit that communicates with the power tool, and a storage unit that stores in advance mode information that determines drive control of the motor in the power tool. And the operating device side communication unit transmits the mode information stored in the storage unit to the electric tool via the operating device side communication unit.

  In order to solve the above problems, the power tool system includes the power tool having the above-described configuration and the power tool operating device having the above-described configuration.

  According to the power tool, power tool operating device, and power tool system of the present invention, it is possible to improve convenience.

It is a schematic block diagram of the electric tool system in embodiment. It is a block diagram for demonstrating the electric structure of the electric tool in the same as the above. (A)-(c) is explanatory drawing for demonstrating an example of the operation plate in the same as the above. It is a block diagram for demonstrating schematic structure of the operation plate in the same as the above. It is explanatory drawing for demonstrating the attachment state of the electric tool main body and operation plate in another example. It is a perspective view for demonstrating attachment of the electric tool main body and operation plate in the same as the above.

Hereinafter, an embodiment of a power tool system will be described with reference to the drawings.
As shown in FIG. 1, the power tool system S includes a power tool 10 and an operation plate 40 as an external device and a power tool operating machine.

  As shown in FIG. 1, the power tool 10 of this embodiment includes a power tool body 11 and a battery pack 12 that can be attached to and detached from the power tool body 11. The battery pack 12 includes a plurality of battery cells 12a as shown in FIG.

  A housing 13 that forms an outline of the electric power tool main body 11 includes a substantially cylindrical main body portion 14, a grip portion 15 that extends downward from the middle of the main body portion 14 in the longitudinal direction, and a battery pack 12 at the lower end portion of the grip portion 15. And a battery pack mounting portion 16 to be mounted.

  Inside the main body portion 14, a motor 17 and a drive transmission portion 18 connected to the motor shaft 17 a of the motor 17 are arranged. The drive transmission unit 18 transmits the rotational driving force of the motor 17 to an output shaft (not shown) disposed in front of the drive transmission unit 18 and includes, for example, a speed reduction mechanism and a clutch mechanism.

  The drive transmission unit 18 is connected to a tip tool mounting unit 19 on the tip side of the output shaft. As a result, the tip tool mounting portion 19 is rotated via the drive transmission portion 18 as the motor 17 rotates. A tip tool such as a driver bit or a tap is detachably attached to the tip tool mounting portion 19 and rotates with the rotation of the tip tool mounting portion 19. In the present embodiment, the axial direction of the motor shaft 17a of the motor 17 is the front-rear direction of the electric tool 10, the substantially extending direction of the grip portion 15 is the upper-lower direction, and the width direction of the electric tool 10 is orthogonal to the front-rear and vertical directions. It demonstrates as a left-right direction.

  As shown in FIG. 1, the grip portion 15 of the electric power tool main body 11 is formed to extend downward with respect to the front-rear direction, which is the longitudinal direction of the main body portion 14. In addition, a trigger switch 20 is provided at the upper end of the grip portion 15 for an operator to instruct the operation / stop of the electric power tool main body 11.

  A forward / reverse switch 21 serving as a forward / reverse switching unit for the operator to indicate the rotation direction of the tip tool (bit), that is, the rotation direction of the motor 17, is slightly on the upper side of the trigger switch 20. It is exposed in a protruding manner. The forward / reverse switch 21 has an operation knob that penetrates the grip portion 15 in the left-right direction, and instructs the rotation direction of the motor 17 by moving the operation knob in the left-right direction.

  A battery pack mounting portion 16 is provided at the lower end of the grip portion 15. The battery pack mounting part 16 has a flat rectangular parallelepiped shape that is long in the front-rear direction. The operation plate 40 can be mounted on the upper surface portion 16a on the front side of the battery pack mounting portion 16.

In addition, a control circuit 27 including a microcomputer 25 and a main body side communication unit 26 (both see FIG. 2) is housed inside the battery pack mounting unit 16.
As shown in FIG. 2, the microcomputer 25 is electrically connected to the trigger switch 20, the forward / reverse switch 21, the switching element drive circuit 29 that performs drive control of the known PWM inverter circuit 28, and the main body side communication unit 26. Has been.

  The switching element driving circuit 29 is connected to the switching elements 28 a to 28 f constituting the PWM inverter circuit 28 based on the control of the microcomputer 25. More specifically, when the switching elements 28a to 28f are composed of FETs, the switching element drive circuit 29 is connected to the gate terminals of the switching elements 28a to 28f.

Each switching element 28a-28f of the PWM inverter circuit 28 has six switching elements 28a-28f comprised, for example by FET.
The series circuits (arms) of the switching elements 28a and 28d, the switching elements 28b and 28e, and the switching elements 28c and 28f are connected in parallel. The switching elements 28 a, 28 b, 28 c on the upper stage side constituting these arms are connected to the plus terminal of the battery pack 12. The lower switching elements 28d, 28e, and 28f constituting each arm are connected to the negative terminal of the battery pack 12. The connection points 30u, 30v, and 30w of the upper and lower switching elements in each arm are connected to motor coils 17u, 17v, and 17w of the motor 17, respectively.

  The microcomputer 25 is connected to a rotational position detecting element 31 that detects a rotational position of a rotor (not shown) of the motor 17. In the present embodiment, the rotational position detecting elements 31 are provided at intervals of approximately 120 degrees in the circumferential direction of the motor 17. Thereby, the microcomputer 25 can detect the rotational position of the rotor of the motor 17 and the presence or absence of the rotation.

The main body side communication unit 26 communicates with the plate side communication unit 41 of the operation plate 40.
As shown in FIG. 1, the operation plate 40 of the present embodiment is configured to be attachable to and detachable from the power tool 10 (power tool main body 11).

As shown in FIG. 4, the operation plate 40 has a mode changeover switch 42 serving as a switching operation unit and a mode display unit 43 serving as a notification unit so as to be exposed to the outside.
Further, the operation plate 40 includes a control unit 44, a plate side communication unit 41 as an operation unit side communication unit, and a memory 45 as a storage unit in a flat box-shaped housing.

The mode changeover switch 42 can be operated by the user and is used for switching and selecting the mode (mode information) of the electric tool 10.
As shown in FIGS. 3A to 3C and FIG. 4, the mode display unit 43 is composed of, for example, a plurality of LEDs (Light Emitting Diodes) 43a, 43b, and 43c, and is selected by operating the mode changeover switch 42. The LED corresponding to the set mode information is turned on.

  The plate side communication unit 41 communicates with the main body side communication unit 26. As a communication method between the plate side communication unit 41 and the main body side communication unit 26, for example, a short-range wireless communication standard such as Bluetooth (registered trademark) or ZigBee (registered trademark) can be employed.

The memory 45 is for storing mode information for determining the operation of the electric tool 10.
The control unit 44 performs various controls of the operation plate 40. For example, the control unit 44 reads out the mode information selected by the mode switch 42 from the memory 45 and transmits the mode information to the main body side communication unit 26 via the plate side communication unit 41. The control unit 44 lights the LEDs 43a, 43b, 43c (mode display unit 43) corresponding to the mode information selected by the mode changeover switch 42.

  In the present embodiment, as shown in FIGS. 3A to 3C, a first operation plate 40a, a second operation plate 40b, and a third operation plate 40c are employed as an example of the operation plate 40. .

  The first operation plate 40a is mainly used for drilling, and is used for rotationally driving the tip tool mounted on the tip tool mounting portion 19 at a substantially constant speed with high torque and low speed. In the memory 45 of the first operation plate 40a, mode information for operating the electric tool 10 at 300 rpm (number of revolutions / minute), mode information for operating the electric tool 10 at 200 rpm, and a mode for operating the electric tool 10 at 100 rpm Information is stored. Thereby, the three mode information can be switched based on the operation of the mode changeover switch 42 of the first operation plate 40a.

  The second operation plate 40b is used for screw tightening and drilling, and is used for rotationally driving at a lower torque and higher speed than mode information provided on the first operation plate 40a. In the memory 45 of the second operation plate 40b, mode information used for tightening the small screw, mode information used for a relatively large diameter drilling operation and a low torque / high rotation operation, and a relatively small diameter drilling operation And mode information used for relatively high torque / low rotation work.

  The memory 45 of the third operation plate 40c can add and delete mode information, that is, rewrite mode information. For this reason, for example, the user can download preferred mode information from the mode providing server, and the downloaded mode information can be added to the memory 45 via the plate side communication unit 41 of the third operation plate 40c. This makes it possible to use user's favorite mode information.

Next, an operation example of the power tool 10 of the present embodiment will be described.
The electric power tool 10 according to the present embodiment operates in accordance with the mode information of the operation plates 40a to 40c that are mounted in a state where any of the operation plates 40a to 40c is mounted. For example, the user operates the mode changeover switch 42 of the operation plates 40 a to 40 c attached to the electric tool 10. Then, the control unit 44 reads the mode information based on the operation from the memory 45 and transmits the information to the outside (the power tool 10 side) via the plate side communication unit 41. Then, information transmitted from the operation plates 40 a to 40 c is input to the microcomputer 25 via the main body side communication unit 26 of the electric power tool main body 11. The microcomputer 25 controls the driving of the motor 17 via the switching element driving circuit 29 based on the input information (mode information).

  The power tool 10 of the present embodiment operates in the default mode even when, for example, each operation plate 40 is removed. The default mode is different depending on the specification of the electric tool. For example, when the user pulls in the trigger switch 20, the rotation speed (rotation speed) of the tip tool (motor 17) depends on the pull-in amount of the trigger switch 20. Operate to change.

Next, the effect of this embodiment will be described.
(1) The power tool 10 communicates with the operation plate 40 as an external device, and outputs to the microcomputer 25 mode information for determining drive control of the motor 17 by the microcomputer 25 obtained by communication from the operation plate 40. 26. The microcomputer 25 performs drive control of the motor 17 based on mode information input via the main body side communication unit 26. Thereby, since it becomes possible to change mode information by exchanging the operation plate 40 which is communication object, it becomes possible to change work content, without exchanging electric tool 10 itself.

(2) Since the motor 17 is a brushless motor, there is no brush wear unlike a motor with a brush, so that the life can be extended.
(3) The operation plate 40 includes a plate-side communication unit 41 that communicates with the power tool 10, and a memory 45 that stores in advance mode information that determines drive control of the motor 17 in the power tool 10. The plate side communication unit 41 transmits the mode information stored in the memory 45 to the power tool 10 via the plate side communication unit 41. As a result, it is possible to change the mode information by exchanging the operation plate 40. Therefore, it is possible to change the work contents without exchanging the electric tool 10 itself.

  (4) The memory 45 stores a plurality of mode information. The operation plate 40 is a mode change switch 42 for switching a plurality of mode information stored in the memory 45 by a user, and a mode for notifying mode information selected from the plurality of mode information switched by the mode change switch 42 And a display unit 43. Thereby, the operation of the electric power tool 10 can be changed by operating the mode changeover switch 42 of the operation plate 40, and the variation of the operation can be increased. Further, the mode display unit 43 can notify the user of the current mode information (mode).

(5) The memory 45 is configured to be able to add and delete mode information. Thus, the user's favorite mode information can be set.
(6) The main body side communication unit 26 of the electric power tool 10 and the plate side communication unit 41 of the operation plate 40 communicate by wireless communication. Thereby, the dustproof property and waterproofness of the electric tool 10 can be improved.

In addition, you may change the said embodiment as follows.
In the above embodiment, the power tool 10 and the operation plate 40 are configured to perform communication by wireless communication without performing direct electrical connection. However, the present invention is not limited to this. For example, the following configuration may be adopted.

  As shown in FIGS. 5 and 6, a slot SL into which a part of the operation plate 40 can be inserted is formed in front of the battery pack mounting portion 16 of the electric power tool body 11. Then, the contact C1 is formed in the slot SL. For example, the contact C1 is configured to be directly connected to the contact C2 provided on the operation plate 40 in a state in which the operation plate 40 is inserted into the slot SL (configuration in which mechanical connection is performed). At this time, the contacts C1 and C2 are concealed in a state where the operation plate 40 is attached to the electric tool 10. This makes it possible to improve waterproofness and dustproofness, and further provides waterproofing by providing a packing on the inner peripheral surface of the opening SL1 of the slot SL and inserting lightly when the operation plate 40 is inserted. And dust resistance can be improved.

In the above embodiment, the first operation plate 40a, the second operation plate 40b, and the third operation plate 40c can be replaced with each other. However, other operation plates may be used.
In the above-described embodiment, the operation plate 40 is configured to operate as the default mode in a state where the operation plate 40 is not attached to the power tool 10 (power tool main body 11), but is not limited thereto. For example, you may employ | adopt the structure which stops operation | movement of the electric tool 10 in the state which has not attached the operation plate 40 with respect to the electric tool 10. FIG. At this time, a configuration that notifies the user that the operation plate 40 is not attached by vibration, sound, display, or the like may be employed.

  In the above-described embodiment, the operation plate 40 that can be attached to and detached from the power tool 10 (power tool main body 11) is employed as the power tool operating device. However, the present invention is not limited thereto. For example, a configuration in which a dedicated application program is introduced (for example, downloaded) to a mobile terminal that is easy for the user to wear such as a smartphone or a tablet terminal that can communicate with the power tool 10 may be employed. In this case, the portable terminal described above corresponds to the power tool operating device. Furthermore, these portable terminals do not need to be attached to the electric tool 10.

  In the above embodiment, the power tool main body 11 and the battery pack 12 are included. However, the present invention is not limited to this. For example, you may employ | adopt the structure which connects and uses the electric tool main body 11 to a commercial power source.

-You may combine the said embodiment and each modification suitably.
Next, a technical idea that can be grasped from the above embodiment and another example will be added below.
(Appendix 1)
An electric tool having a motor, a drive unit driven by the motor, and a control unit that performs drive control of the motor,
A main body side communication unit that communicates with an external device and outputs mode information for determining drive control of the motor by the control unit obtained by communication from the external device to the control unit;
The said control part performs drive control of the said motor based on the said mode information input via the said main body side communication part, The electric tool characterized by the above-mentioned.

(Appendix 2)
In the power tool according to appendix 1,
The electric tool according to claim 1, wherein the motor is a brushless motor.

(Appendix 3)
An operating device side communication unit that communicates with the power tool, and a storage unit that stores in advance mode information that determines drive control of the motor in the power tool,
The operating device side communication unit transmits mode information stored in the storage unit to the electric tool via the operating device side communication unit.

(Appendix 4)
The power tool operating device according to appendix 3,
The storage unit stores a plurality of the mode information,
A switching operation unit that switches a plurality of the mode information stored in the storage unit by a user, and a notification unit that notifies mode information selected from the plurality of mode information switched by the switching operation unit. An operating tool for an electric tool, comprising:

(Appendix 5)
The power tool operating device according to appendix 3 or 4,
The storage unit is configured to be capable of adding and deleting the mode information.

(Appendix 6)
A power tool system comprising the power tool according to appendix 1 or 2 and the power tool operating device according to any one of appendices 3 to 5.

(Appendix 7)
The power tool system according to appendix 6,
The power tool system according to claim 1, wherein the main body side communication unit of the power tool and the controller side communication unit of the power tool operating device communicate by wireless communication.

(Appendix 8)
The power tool system according to appendix 6,
The main body side communication unit of the electric tool and the operation unit side communication unit of the electric tool operation machine communicate with each other in a state where the contacts are mechanically connected, and the electric tool operation machine is connected to the electric tool. The power tool system, wherein the contact is concealed in a state where the power tool is attached to the power tool.

  DESCRIPTION OF SYMBOLS S ... Electric tool system, 10 ... Electric tool, 11 ... Electric tool main body, 12 ... Battery pack, 17 ... Motor, 25 ... Microcomputer as a control part, 26 ... Main body side communication part, 40 ... Operation for external apparatus and electric tool Operation plate as a machine, 41... Plate side communication unit as an operation machine side communication unit, 42... Mode changeover switch as a switching operation unit, 43 ... Mode display unit as a notification unit, 45 ... Memory as a storage unit, C1 , C2 ... Contact.

Claims (8)

  An operation plate that constitutes an operating tool for an electric tool, comprising: a switching operation unit that is operated by a user to switch an electric tool mode; an informing unit that notifies the mode of the electric tool; and an operating device side communication unit; A power tool capable of communication,
  A motor,
  A drive unit driven by the motor;
  A control unit that performs drive control of the motor based on mode information that determines the content of drive control of the motor;
  A main body side communication unit that outputs the mode information acquired by communication with the controller side communication unit to the control unit;
  The operation plate can be attached so that the operation plate is exposed to the electric tool, and an operation machine attachment portion that can attach and detach the operation plate is provided.
  Electric tool.   A battery pack mounting portion to which the battery pack is mounted;
  The operating device mounting portion is provided on an upper surface portion on the front side of the battery pack.
  The power tool according to claim 1.   The main body side communication unit wirelessly communicates with the controller side communication unit
  The power tool according to claim 1 or 2.   The operating device mounting portion includes a slot into which a part of the operating plate is inserted,
  The slot conceals a contact point between the power tool and the operating unit mounting portion.
  The power tool according to claim 1 or 2.   The mode information acquired by communication with a motor, a drive unit driven by the motor, a control unit that performs drive control of the motor based on mode information that determines the content of drive control of the motor, and the external device. A power tool operating device capable of communicating with a power tool comprising a main body side communication unit that outputs to the control unit, and a power tool mounting unit that is detachable from the power tool operating device,
  An operation plate that can be attached to the operating device mounting portion so as to be exposed to the electric tool;
  The operation plate is
  A switching operation unit operated by a user to switch the mode of the electric tool;
  An informing unit for informing the mode of the electric tool;
  An operating device side communication unit that is provided in the housing of the operation plate and communicates with the main body side communication unit.
  Operation tool for power tools.   A storage unit that is provided in the housing of the operation plate and stores a plurality of the mode information in advance;
  The controller side communication unit transmits the mode information stored in the storage unit to the main body side communication unit.
  The operating tool for an electric tool according to claim 5.   The storage unit is configured to be able to add and delete the mode information.
  The power tool operating device according to claim 6.   The power tool according to any one of claims 1 to 4,
  A power tool operating machine according to any one of claims 5 to 7.
  Electric tool system.