WO2022070760A1

WO2022070760A1 - Work machine

Info

Publication number: WO2022070760A1
Application number: PCT/JP2021/032417
Authority: WO
Inventors: 真之武久; 清人松岡; 義広小室
Original assignee: 工機ホールディングス株式会社
Priority date: 2020-09-29
Filing date: 2021-09-03
Publication date: 2022-04-07

Abstract

Provided is a work machine having good operability. A work machine 1 has a motor 3 and a computation unit 40 capable of controlling the output of the motor 3. The computation unit 40 is configured to be capable of driving the motor 3 in any of a plurality of drive modes selectable by an operator. The plurality of drive modes have an application mode in which a setting value can be changed using a portable terminal 80, and a default mode in which a setting value cannot be changed using the portable terminal 80. The computation unit 40 has an auto stop function for stopping the motor 3 when a set time has elapsed from the start of striking of an end tool. The set time for the auto stop function in the application mode can be changed through use of the portable terminal 80.

Description

Working machine

The present invention relates to a working machine such as an impact wrench.

The following Patent Document 1 discloses a power tool capable of switching a set value of each drive mode by wireless communication with an external device.

Japanese Unexamined Patent Publication No. 2014-18868

The user wants to arbitrarily set the setting value according to the work content, but if the existing drive mode setting value can be switched, which drive mode setting value is changed and which drive mode setting value is changed. There is a risk that you will not know if it has not been done. As a result, it became necessary to reset all drive modes and reset the set values, resulting in poor workability and the need for improvement.

The present invention has been made in recognition of such a situation, and an object of the present invention is to provide a working machine having good workability.

One aspect of the present invention is a working machine. The working machine includes a motor and a control unit capable of controlling the output of the motor, and the control unit is configured to be able to drive the motor in any of a plurality of drive modes selectable by the operator. The plurality of drive modes are characterized by having a changeable mode in which the set value can be changed using an external device and an unchangeable mode in which the set value cannot be changed using the external device. And. According to this aspect, the default mode does not change the set value, and the set value can be changed only in the changeable mode, so that the user can determine whether the drive mode is an existing drive mode or a drive mode in which the set value is changed. It becomes possible to discriminate and improve workability.

It may have a display unit for notifying that the changeable mode is selected. According to this, by providing a display unit for displaying that the mode is changeable, the set drive mode can be easily understood.

The display unit is configured to be able to display whether any one of the plurality of drive modes is selected, and the display unit is a changeable mode display unit that is displayed only when the changeable mode is selected. May have.

The display unit is configured to be able to display whether any one of the plurality of drive modes is selected, and the display unit is set to the changeable mode and the non-changeable mode. It may be possible to distinguish between the case where there is a case and the case where the case is displayed by a common display window. According to this, by using a common display window, it is possible to notify that the changeable mode is set without increasing the number of display windows.

The display window may display different colors depending on whether the mode is set to the changeable mode or the non-changeable mode.

It may have an operation unit capable of switching the plurality of drive modes. According to this, it is possible to shift to the changeable mode by operating the working machine without touching the external device.

When the operation unit is operated when there is a changeable mode in which the set value is not set using the external device, the plurality of drive modes excluding the changeable mode in which the set value is not set are not set. It may be possible to switch the drive mode in. According to this, when the drive mode is selected by the operation of the work machine, if the set value of the changeable mode is not set, the mode is not changed to the changeable mode, so that the operability is improved.

When the set value of the changeable mode is set by using the external device, it may be possible to shift to the changeable mode by operating the operation unit.

Upon receiving a predetermined signal from the external device, the control unit may automatically shift to the changeable mode. According to this, when the external device is operated, it is determined that the changeable mode is used and the mode is automatically changed, so that the operability is improved.

When the set value is set using the external device, it may have a storage unit for storing the set value set as the changeable mode. According to this, even when the external device is out of the communication range, it can be driven by the set value set last time.

It may be possible to switch the drive mode using the external device.

It may have a reset means capable of resetting the set value set in the changeable mode. According to this, when it is desired to reset the set value of the changeable mode, the reset means enables smooth resetting. Further, when the changeable mode is no longer used, resetting does not shift to the changeable mode when the drive mode is switched, so that the operability is improved.

The set value set in the changeable mode may be reset by using the external device. According to this, when it is desired to reset the set value of the changeable mode, smooth resetting is possible by resetting using an external device. Further, when the changeable mode is no longer used, resetting does not shift to the changeable mode when the drive mode is switched, so that the operability is improved.

It has a tip tool and a rotary striking mechanism for rotationally striking the tip tool by the rotation of the motor, and may be driven by the electric power of the battery pack.

The control unit has an auto-stop function for stopping the motor when a set time elapses from the start of striking of the tip tool by the rotary striking mechanism, and the set time of the auto-stop function in the changeable mode by the external device. May be changeable.

It should be noted that any combination of the above components and a conversion of the expression of the present invention between methods, systems and the like are also effective as aspects of the present invention.

According to the present invention, it is possible to provide a working machine having good workability.

A side sectional view of the working machine 1 according to the embodiment of the present invention. It is an external view of the operation panel 30 of the work machine 1, and is the external view which shows the display example in the case where the auto stop function is enabled, and is the default mode. It is an external view of the operation panel 30, and is the external view which shows the display example in the case where the auto stop function is enabled and is in an application mode. It is an external view of the operation panel 30A which is another example of the operation panel 30, and is the external view which shows the display example in the case of the auto stop function is enabled and the default mode. It is an external view of the operation panel 30A, and is the external view which shows the display example in the case where the auto stop function is enabled and is in an application mode. It is an external view of the operation panel 30B which is another example of the operation panel 30, and is the external view which shows the display example in the case of the auto stop function is enabled and the default mode. It is an external view of the operation panel 30B, and is the external view which shows the display example in the case where the auto stop function is enabled and is in an application mode. The circuit block diagram of the management system which manages a work machine 1. The state transition diagram of the work machine 1. The screen of the mobile terminal 80 in which the management application is installed, (A) is a registration list screen (no registration image), and (B) is a new registration screen of a storage battery. Similarly, the screen of the mobile terminal 80, (A) is a nickname registration screen of the storage battery in the connected state, and (B) is an image registration screen of the storage battery in the connected state. Similarly, the screen of the mobile terminal 80, (A) is a storage battery information display screen (tool not connected) in the connected state, and (B) is a storage battery information display screen in the tool connected state. Similarly, the screen of the mobile terminal 80, (A) is a nickname registration screen of the connected tool, and (B) is an image registration screen of the connected tool. Similarly, on the screen of the mobile terminal 80, (A) is a tool information display screen that can display the connected tools and storage batteries and enable / disable the tool auto stop function, and (B) is one of the auto stop modes. A screen for adding settings for the app mode. Similarly, it is a screen of the mobile terminal 80, (A) is an application mode setting saving screen, and (B) is an application mode setting list screen after saving. Similarly, the screen of the mobile terminal 80, (A) is a setting list screen (initial state) in which only the default mode is displayed as the setting of the application mode, and (B) is the editing screen of the setting list already saved as the application mode. Similarly, on the screen of the mobile terminal 80, (A) is a registration list screen displaying all registered selectable tools and storage batteries, and (B) is a connected storage battery information display screen (registered tool connected). .. Similarly, the screen of the mobile terminal 80, (A) is a registered and unconnected tool information display screen, and (B) is a registered and unconnected storage battery information display screen.

In the following, the same or equivalent components, members, etc. shown in the drawings are designated by the same reference numerals, and duplicate description thereof will be omitted as appropriate. The embodiment is not limited to the invention but is an example. Not all features and combinations thereof described in embodiments are essential to the invention.

The present embodiment relates to the working machine 1. FIG. 1 defines the front-rear and up-down directions of the working machine 1 that are orthogonal to each other. The front-rear direction is a direction parallel to the central axis of the output shaft 3a of the motor 3. The work machine 1 is a power tool, specifically, a cordless type impact wrench. The working machine 1 has a housing 2. The housing 2 includes a body portion (cylindrical portion) 2a, a handle portion 2b, and a battery pack mounting portion 2c. The body portion 2a has a tubular shape, and its central axis is parallel to the front-rear direction. The handle portion 2b extends downward from the intermediate portion of the body portion 2a. A battery pack mounting portion 2c is provided at the lower end portion of the handle portion 2b.

A sensor / inverter circuit board 12, a main body (rotor and stator) of a motor 3, and a rotary impact mechanism 4 are provided in the body portion 2a in this order from the rear. The sensor / inverter circuit board 12 is supported by the body portion 2a so as to be perpendicular to the front-rear direction. The output shaft 3a of the motor 3 penetrates the sensor / inverter circuit board 12 and extends rearward. The motor 3 is an inner rotor type brushless motor here. The rotary striking mechanism 4 rotationally impacts the tip tool 11 by the rotation of the motor 3. The rotary striking mechanism 4 has a planetary gear mechanism (deceleration mechanism) 5, a spindle 6, a hammer 7, and an anvil 8 in this order from the rear. The planetary gear mechanism 5 decelerates the rotation of the motor 3 and transmits it to the spindle 6. The hammer 7 rotates together with the spindle 6 to rotate or hit the anvil 8. A tip tool 11 such as a bit is attached to the anvil 8.

A trigger switch 9 is provided at the upper end front portion of the handle portion 2b. The trigger switch 9 is an operation unit for an operator to switch between driving and stopping the motor 3. The battery pack 20 is connected to the battery pack mounting portion 2c. The work machine 1 is driven by the electric power of the battery pack 20. The battery pack 20 has a short-range wireless communication function such as Bluetooth (registered trademark). By pressing a switching button (not shown) on the battery pack 20, the short-range wireless communication function can be enabled / disabled. The control board 10 is provided on the upper part of the battery pack mounting portion 2c. An operation panel 30 is provided on the upper surface of the battery pack mounting portion 2c. The operation panel 30 is an operation unit capable of switching the drive mode of the work machine 1 between the continuous mode, the auto stop mode, and the application mode.

The continuous mode is a mode in which the motor 3 is continuously driven as long as the trigger switch 9 is pulled (turned on). The auto stop mode is a mode in which the motor 3 is stopped even if the trigger switch 9 is pulled after a predetermined time has elapsed from the start of hitting the tip tool 11 by the anvil 8 (hereinafter, “start of hitting”). The application mode is a mode in which the set value can be changed using an external device. Further, the working machine 1 has a default mode (default mode) in which the set value cannot be changed by using an external device. The app mode is an example of a modifiable mode, and the default mode is an example of an immutable mode. The continuous mode and the auto stop mode are examples of the default mode.

2 to 7 show the appearance of the operation panel 30 and the operation panels 30A and 30B which are modifications thereof. The operation panels 30, 30A, and 30B have different display modes in the application mode, and are common in other points. First, common matters will be explained.

The power changeover or setting changeover switch 31 is, for example, a tactile switch, which functions as a switch for switching between modes having different powers of the motor 3 in the continuous mode, and a switch for switching between modes with different auto stop settings (torque and auto stop time) in the auto stop mode. Functions as. Each time the power switching or setting switching switch 31 is pressed, the power or auto stop setting of the motor 3 is switched. One of the auto stop settings is the above-mentioned application mode. In other words, in the application mode of this embodiment, the auto stop time is set.

The auto stop changeover switch 32 is, for example, a tactile switch, and is a switch for switching between enabling / disabling the auto stop mode. Each time the auto stop changeover switch 32 is pressed, the drive mode of the work machine 1 is switched between the continuous mode and the auto stop mode.

When the power changeover or setting changeover switch 31 and the auto stop changeover switch 32 are simultaneously pressed and held for, for example, 3 seconds, the application mode is reset. The reset of the application mode is either or both by deleting the setting value of the application mode from the work machine 1 and by setting the work machine 1 to a state in which the transition to the application mode is not performed. The reset operation of the application mode is not limited to the simultaneous operation of the power changeover or setting changeover switch 31 and the auto stop changeover switch 32, and may be a long press of only one of them. Alternatively, the work machine 1 may be provided with a dedicated button for resetting the application mode.

The auto stop function enable / disable display LED 33 is a part of the display unit 37 shown in FIG. 8, and is, for example, lit in red in the auto stop mode and turned off in the continuous mode. The power or setting display LED 34 is a part of the display unit 37 shown in FIG. 8, and functions as a power display unit that displays the power of the motor 3 in the continuous mode, and is a setting display unit that displays the auto stop setting in the auto stop mode. Functions as. The lighting color of the power or setting display LED 34 is, for example, red. The number of power or setting display LEDs 34 is four in the illustrated example, but can be arbitrarily changed according to the number of power stages of the motor 3 and the number of auto stop mode settings.

Subsequently, the matters different among the operation panels 30, 30A, and 30B will be described. As shown in FIGS. 2 and 3, the operation panel 30 has one app mode display LED 35 as a changeable mode display unit. The application mode display LED 35 is a part of the display unit 37 shown in FIG. 8, and is turned off in a mode other than the application mode (FIG. 2) and turned on in the application mode (FIG. 3). The lighting color of the application mode display LED 35 is preferably different from the lighting color of the auto stop function enable / disable display LED 33, and is, for example, blue. In the application mode, the power or setting display LED 34 may be turned off as shown in FIG. 3, but as another example, it may be turned on in a number corresponding to the power of the application mode.

As shown in FIGS. 4 and 5, the operation panel 30A does not have the application mode display LED 35 that was present in the operation panel 30. The operation panel 30A distinguishes whether or not the application mode is used depending on the power or the lighting color of the setting display LED 34. Specifically, the power or setting display LED 34 lights up in red, for example, in a mode other than the application mode (FIG. 4), and lights up in blue, for example, in the application mode (FIG. 5). The power in the application mode or the number of lightings of the setting display LED 34 indicates the power in the application mode.

As shown in FIGS. 6 and 7, the operation panel 30B has four app mode display LEDs 36 as changeable mode display units. The application mode display LED 36 is a part of the display unit 37 shown in FIG. 8, and is turned off in a mode other than the application mode (FIG. 6), and is turned on by the number corresponding to the power in the application mode (FIG. 6). 7). The lighting color of the application mode display LED 36 may be the same as the lighting color of the power or setting display LED 34 (for example, red) as shown in FIGS. 6 and 7, but is different from the lighting color of the power or setting display LED 34 as another example. It may be a color (for example, blue).

FIG. 8 is a circuit block diagram of a management system that manages the work machine 1. This management system includes a working machine 1, a battery pack 20, and a portable terminal 80 as an external device. In the working machine 1, the switching elements Q1 to Q6 provided on the sensor / inverter circuit board 12 are connected by a three-phase bridge to form an inverter circuit. The switching elements Q1 to Q6 perform switching operations according to the control of the arithmetic unit 40 to supply drive power to the motor 3. The magnetic sensor 13 provided on the sensor / inverter circuit board 12 is for detecting the rotation position of the motor 3, and transmits an electric signal corresponding to the rotation position of the motor 3 to the rotation position detection circuit 44. On the control board 10, a calculation unit 40 as a work equipment control unit, a current detection circuit 41, a switch operation detection circuit 42, a control signal circuit (control signal output circuit) 43, a rotation position detection circuit 44, a rotation number detection circuit 45, And a storage unit 46 is provided.

The current detection circuit 41 detects the current of the motor 3 by the voltage of the resistor R provided in the current path of the motor 3 and transmits it to the calculation unit 40. The switch operation detection circuit 42 detects the operation of the trigger switch 9 and transmits it to the calculation unit 40. The control signal circuit 43 applies a control signal (for example, a PWM signal) to each control terminal of the switching elements Q1 to Q6 according to the control of the calculation unit 40. The rotation position detection circuit 44 detects the rotation position of the motor 3 by the signal from the magnetic sensor 13 and transmits it to the calculation unit 40. The rotation speed detection circuit 45 detects the rotation speed of the motor 3 by the signal from the rotation position detection circuit 44 and transmits it to the calculation unit 40. The storage unit 46 is composed of a non-volatile memory that can hold the stored information even when power is not supplied. The storage unit 46 stores unique information of the work machine 1, usage history information of the work machine 1, set values of each setting of the auto stop mode, and the like. The storage unit 46 may be a separate body from the calculation unit 40, or may be built in the calculation unit 40. The calculation unit 40 includes a microcontroller and the like, and operates in a drive mode selected by the operator. In the drive mode, the calculation unit 40 controls on / off of the switching elements Q1 to Q6 via the control signal circuit 43 according to the operation of the trigger switch 9, the rotation position and rotation speed of the motor 3, and the current of the motor 3 ( For example, PWM control) is performed to control the drive (output) of the motor 3. Further, the calculation unit 40 controls the display by the display unit 37 in each drive mode.

The battery pack 20 includes a battery cell set 21, a calculation unit 22, a storage unit 23, and a communication unit 26 for short-range wireless communication. The battery cell set 21 is formed by connecting a plurality of battery cells such as a lithium ion secondary battery cell to each other. The number of series connections and the number of parallel connections of a plurality of battery cells are arbitrary. The calculation unit 22 includes a microcomputer and the like, communicates with the calculation unit 40 of the work machine 1 (wired communication), and controls the communication unit 26. The storage unit 23 stores unique information of the battery pack 20, for example, a model name and a serial number. The communication unit 26 is, for example, a BLE (Bluetooth Low Energy) module and communicates (wireless communication) with the communication unit 85 of the mobile terminal 80.

The mobile terminal 80 is, for example, a smartphone or a tablet terminal. The mobile terminal 80 includes a control unit 81, a storage unit 82, a display unit 83, an operation unit 84, a communication unit 85, and a battery 86. If the mobile terminal 80 is a smartphone or tablet terminal, the screen of the smartphone or tablet terminal is the display unit 83 and the operation unit 84. The communication unit 85 has a short-range wireless communication function such as Bluetooth (registered trademark), and communicates with the communication unit 26 of the battery pack 20. Further, the communication unit 85 communicates with the calculation unit 40 of the working machine 1 via the communication unit 26 of the battery pack 20. A management application (hereinafter referred to as "management application") is installed in the storage unit 82. The control unit 81 executes each function of the management application.

9 (A) and 9 (B) are state transition diagrams of the working machine 1 (calculation unit 40). FIG. 9A shows a case where the application mode is not set, and FIG. 9B shows a case where the application mode is set. First, FIG. 9A will be described. When the calculation unit 40 detects that the power changeover or the setting changeover switch 31 is pressed (E2) when the power of the motor 3 is other than the strongest (power 4) in the continuous mode, the calculation unit 40 raises the power of the motor 3 by one step. When the calculation unit 40 detects that the power changeover or the setting changeover switch 31 is pressed (E2) when the power of the motor 3 is the strongest (power 4) in the continuous mode, the power of the motor 3 is set to the weakest (power 1). do. In the illustrated example, the power of the motor 3 has four stages, but the number of power stages of the motor 3 is arbitrary.

When the calculation unit 40 detects that the power switching or the setting switching switch 31 is pressed (E2) in the auto stop mode, the calculation unit 40 switches the auto stop setting in the default mode (default frame). In the illustrated example, there are four types of auto stop settings in the default mode, settings 1 to 4, but the number of types of auto stop settings is arbitrary. When the arithmetic unit 40 detects a short press (E1) of the auto stop changeover switch 32 in the continuous mode, it transitions to the default mode of the auto stop mode, and when it detects a short press (E1) of the auto stop changeover switch 32 in the auto stop mode, it shifts to the continuous mode. do.

Subsequently, FIG. 9B will be described. In FIG. 9B, the state transition in the continuous mode and the state transition when the short press (E1) of the auto stop changeover switch 32 is detected are the same as those in FIG. 9A. Hereinafter, matters different from those in FIG. 9A will be mainly described in FIG. 9B. When the calculation unit 40 detects that the power switching or setting switching switch 31 is pressed (E2) in the setting 4 of the auto stop mode, the calculation unit 40 transitions to the application mode (app frame), and the power switching or setting switching switch 31 is pressed (E2) in the application mode. ) Is detected, the transition to setting 1 is performed. Even in the continuous mode, it is possible to configure the mode to shift to the application mode when the power switching or the pressing of the setting switching switch 31 (E2) is detected when the power is 4.

When the calculation unit 40 detects the reception (E3) of the auto stop function on signal from the management application of the mobile terminal 80 in the continuous mode, the calculation unit 40 transitions to the application mode. When the calculation unit 40 detects the reception (E4) of the auto stop function off signal from the management application of the mobile terminal 80 in the auto stop mode, the calculation unit 40 shifts to the continuous mode. When the calculation unit 40 detects the reception (E5) of the auto stop setting value from the management application in the default mode, the calculation unit 40 updates the application mode setting value stored in the storage unit 46 to the received setting value and switches to the application mode. Transition. When the calculation unit 40 detects the reception (E5) of the auto stop setting value from the management application in the application mode, the calculation unit 40 updates the application mode setting value stored in the storage unit 46 to the received setting value, and switches to the application mode. stay.

The functions of the management application of the mobile terminal 80 will be described with reference to FIGS. 10 to 18. In the screens shown in these figures, the working machine is described as a "tool" and the battery pack 20 is described as a "storage battery". In the following description, "working machine 1" refers to the impact wrench described above, and "working machine" refers to the impact wrench and other working machines (impact driver, etc.) described above. FIG. 10A is a registration list screen of the management application in which the work machine and the battery pack 20 are not registered. On this screen, the number displayed near the "+" button ("1" in the illustrated example) indicates the number of battery packs 20 that can be connected by the short-range wireless communication function.

If you tap the "+" button when a number is displayed near the "+" button, the screen will change to the screen shown in FIG. 10B, the battery pack 20 that can be connected will be searched, and the list of battery packs 20 that can be connected will be searched. Is displayed. In the illustrated example, the battery pack 20 named "BATTERY AAA" is displayed in the list. Tap the "Cancel" button on the screen of FIG. 10 (B) to return to the screen of FIG. 10 (A). When you tap the "Not connected" button on the right side of the "BATTERY AAA" display on the screen shown in FIG. 10 (B), the battery pack 20 named "BATTERY AAA" is connected and the screen changes to the screen shown in FIG. 11 (A). do. On this screen, a nickname registration pop-up is displayed, and the nickname of the connected battery pack 20 can be registered. Here, the nickname is "BT1100". When you enter a nickname and tap the "OK" button, the screen changes to the screen shown in FIG. 11 (B).

On the screen of FIG. 11B, the image of the battery pack 20 can be registered by any of the methods displayed in the image registration pop-up. When you tap the "Take" button, the camera function of the mobile terminal 80 is activated, and you can take a picture of the battery pack 20 and register it. By tapping the "Select from photos" button, the image of the battery pack 20 can be selected and registered from the photos and images stored in the mobile terminal 80. When you tap the "Set later" button, the default image stored on the management application side is registered. When the image registration of the battery pack 20 is completed, the screen transitions to the screen of FIG. 12 (A). Information on the registered battery pack 20 is displayed on this screen.

In FIG. 12A, when the "List of all" button is tapped, the screen transitions to the registration list screen in which the battery pack 20 is registered and can be connected, and the work machine is not registered (not shown). You can change the nickname of the battery pack 20 by tapping the nickname change button 803. By tapping the image change button 804, you can change the registered image of the battery pack 20. When the "Disconnect" button is tapped, the connection with the battery pack 20 is canceled, and the screen transitions to the registration list screen in which the battery pack 20 is registered and cannot be connected (not shown). When the "Delete this storage battery from the list" button is tapped, the registration of the battery pack 20 is canceled and the screen transitions to the registration list screen shown in FIG. 10 (A).

When the work machine 1 is connected to the battery pack 20 in the screen display of FIG. 12 (A), the display of “No compatible tool is connected” in FIG. 12 (A) is displayed as shown in FIG. 12 (B). Switch to the "Not set" button. When the "Not set" button is tapped, a nickname registration pop-up is displayed as shown in FIG. 13A, and the nickname of the connected work machine 1 can be registered. Here, the nickname is "IPW2200". When you enter a nickname and tap the "OK" button, the screen transitions to the screen shown in FIG. 13 (B). On the screen of FIG. 13B, the image of the working machine 1 can be registered by any method displayed in the image registration pop-up. The registration method is the same as for the battery pack 20. When the image registration of the working machine is completed, the screen transitions to the screen of FIG. 14 (A). Information on the registered work machine is displayed on this screen.

When the "BT1100" button is tapped on the screen of FIG. 14 (A), the screen transitions to the screen of FIG. 17 (B). There are two "BT1100" buttons, one at the top of the screen and one under the "connected compatible storage battery". By tapping the nickname change button 805, you can change the nickname of the work machine 1. By tapping the image change button 806, the registered image of the work machine 1 can be changed. Tap the "Delete this tool from the list" button to cancel the registration of the work machine 1 and move to the registration list screen where the battery pack 20 is registered and can be connected and the work machine is not registered (not shown). ). By tapping the auto stop ON / OFF button 812, the auto stop function of the work machine 1 can be enabled / disabled (an auto stop function on signal or an auto stop function off signal can be transmitted to the work machine 1). Tap the "Adjustment" button to move to the screen shown in FIG. 14 (B). The "adjustment" button can be tapped only when the auto stop ON / OFF button 812 is on.

On the screen of FIG. 14B, the application mode setting can be added. When the ">" button on the right side of the "auto stop time" is tapped, the screen transitions to the screen of FIG. 15 (B) or FIG. 16 (A). In the screen of FIG. 14B, the power change button 807 is a button for selecting the power of the motor 3 in the application mode from four stages. The auto stop time display unit 808 displays the auto stop time in the application mode being set. The auto stop time is a set time from the start of striking to the stop of the motor 3. The auto stop time change slider 809 is a slider that can change the auto stop time by sliding it to the left or right. The auto stop button fine adjustment button 810 includes a "+" button and a "-" button for finely adjusting the auto stop time. The default value bar 811 indicates the auto stop time in the default setting. Tap the "Add this setting to the list" button to move to the screen shown in FIG. 15 (A). On the screen of FIG. 15A, a name setting pop-up is displayed, and a name can be given to the setting to be registered. Here, the name is "Setting 3". Tap the "Enter" button to return to the screen shown in FIG. 14 (B).

FIG. 15B is a setting list screen of the application mode after registering the setting of the application mode called “setting 3”. In FIG. 15 (B), tapping the "<" button on the left side of the "auto stop time" returns to the screen of FIG. 14 (B). In FIG. 15 (B), tapping the "Edit" button on the right side of the "setting list" transitions to the screen of FIG. 16 (B). In FIG. 15B, tapping any of the four power selection buttons 813 switches to the list display of only the tapped power setting. In FIG. 15B, "default" and "setting 3" are displayed as the setting list of the application mode, and a check mark is put in "setting 3" which is the currently selected setting. FIG. 16A is a setting list screen (initial state) in which only the “default” is displayed as the setting of the application mode. Alternatively, FIG. 16A is a setting list screen when the power selection button 813 “1” is tapped on the screen of FIG. 15B. FIG. 16B is an edit screen of the setting list saved as the application mode. You can sort the setting list by swiping up or down the sort button 814 on the right side of the setting list. In FIG. 16B, "setting 3" is selected. The "Clear" button allows you to remove the selected settings from the settings list. Tap the edit end button 815 to return to the screen shown in FIG. 15 (B).

FIG. 17A is a registration list screen displaying all registered selectable work machines and battery packs 20. After registering the working machine and the battery pack 20, the screen of FIG. 10A becomes a display as shown in FIG. 17A. By tapping the "tool" button in the center of the lower part of the screen of FIG. 17 (A), it is possible to change to the list screen of only the working machine. By tapping the "battery" button on the lower right side, you can change to the list screen of only the battery pack 20. If you tap the "All" button on the lower left side, you will return to the list screen of the work machine and battery pack 20 shown in FIG. 17 (A). FIG. 17B is an information display screen of the battery pack 20 in the communication connection state, and is an information display screen when the registered working machine 1 is connected to the battery pack 20. FIG. 18A is an information display screen of the work machine 1 that has been registered and has not been connected to communication. FIG. 18B is an information display screen of the battery pack 20 that has been registered and has not been connected to communication.

According to this embodiment, the following effects can be obtained.

(1) The calculation unit 40 of the work machine 1 has an application mode in which the set value can be changed using the mobile terminal 80 and a set value cannot be changed using the mobile terminal 80 as the drive mode of the work machine 1. It has a default mode. Since the set value can be changed only in the application mode, the user can immediately determine which drive mode the set value has been changed to, and the workability can be improved.

(2) Since the operation panel 30 and the operation panels 30A and 30B which are variants thereof can all display that they are in the application mode, it is convenient for the user to easily confirm that the operation panel 30 is in the application mode. Since the operation panels 30 and 30B have the application

mode display LEDs

35 and 36 that are lit only in the application mode, it is easy for the user to understand that the operation panel 30 and 30B are in the application mode. On the other hand, since the operation panel 30A distinguishes whether or not the application mode is used depending on the power or the lighting color of the setting display LED 34, it is possible to notify the user of the application mode without increasing the number of display windows.

(3) Since the user can shift the work machine 1 to the application mode by operating the auto stop changeover switch 32 of the work machine 1, it is possible and convenient to shift to the application mode regardless of the operation of the external device.

(4) When the setting value of the application mode is not stored in the storage unit 46, the work machine 1 does not shift to the application mode even if the auto stop changeover switch 32 is operated, so that the work machine 1 has good operability.

(5) The auto-stop function of the work machine 1 can be enabled by the management application of the mobile terminal 80, and when the auto-stop function of the work machine 1 is enabled by the management app, the work machine 1 automatically shifts to the application mode. Since it can be determined that the user uses the application mode when the auto stop function of the work machine 1 is enabled by the management application, the operability is improved by automatically shifting to the application mode.

(6) Since the work machine 1 stores the set value of the application mode in its own storage unit 46, it can be driven in the previously set application mode even when the mobile terminal 80 is out of the communication range, which is convenient.

(7) Since the work machine 1 can reset the application mode by, for example, pressing and holding the power changeover or setting changeover switch 31 and the auto stop changeover switch 32 at the same time, the application mode setting value may be reset or the application mode is not used. It is convenient when you do.

Although the present invention has been described above by taking the embodiment as an example, it is understood by those skilled in the art that various modifications can be made to each component and each processing process of the embodiment within the scope of the claims. By the way. Hereinafter, a modification example will be touched upon.

A plurality of types of application mode setting values may be stored in the storage unit 46. For example, when storing four types of application mode setting values, which application mode setting value is selected is determined by the power or setting display LED 34 on the operation panels 30 and 30A and by the application mode display LED 36 on the operation panel 30B. It may be notified separately. A function to reset the application mode of the work machine 1 may be added to the management application. In the operation panel 30A, the application mode is distinguished by the difference in the lighting mode of the power or the setting display LED 34, for example, continuous lighting or intermittent lighting (blinking), in place of or in addition to the difference in the lighting color of the power or the setting display LED 34. It may be notified. The working machine 1 itself has a short-range wireless communication function such as Bluetooth (registered trademark), and may directly communicate with the mobile terminal 80 without going through the battery pack 20. The working machine of the present invention may be of a type other than the impact wrench. Further, when the communication between the battery pack 20 and the mobile terminal 80 for which communication has been established changes from the connected state to the non-connected state, when the auto stop changeover switch 32 is operated, among a plurality of drive modes excluding the changeable mode. The drive mode may be switched with. At this time, the setting value of the application mode set by the external device and stored in the storage unit 46 may be deleted. As a result, even when a plurality of workers use one working machine, it is possible to prevent the work from being performed in an unintended drive mode.

1 ... Working machine, 2 ... Housing, 2a ... Body part (cylindrical part), 2b ... Handle part, 2c ... Battery pack mounting part, 3 ... Motor (brushless electric motor), 3a ... Output shaft (rotating shaft), 4 ... Rotational impact mechanism, 5 ... Planetary gear mechanism (deceleration mechanism), 6 ... Spindle, 7 ... Hammer, 8 ... Anvil, 9 ... Trigger switch, 10 ... Control board, 11 ... Tip tool (bit), 12 ... Sensor / inverter Circuit board, 13 ... Magnetic sensor (Hall IC), 20 ... Battery pack, 21 ... Battery cell set, 22 ... Calculation unit, 23 ... Storage unit, 26 ... Communication unit, 30, 30A, 30B ... Operation panel, 31 ... Power Changeover or setting changeover switch, 32 ... Auto stop changeover switch, 33 ... Auto stop function enable / disable display LED, 34 ... Power or setting display LED, 35, 36 ... App mode display LED, 37 ... Display unit, 40 ... Calculation unit (work) Machine control unit), 41 ... current detection circuit, 42 ... switch operation detection circuit, 43 ... control signal circuit, 44 ... rotation position detection circuit, 45 ... rotation speed detection circuit, 46 ... storage unit (working machine storage unit), 80 ... mobile terminal, 81 ... control unit, 82 ... storage unit, 83 ... display unit, 84 ... operation unit, 85 ... communication unit, 803 ... nickname change button, 804 ... image change button, 805 ... nickname change button, 806 ... image Change button, 807 ... Power change button, 808 ... Auto stop time display, 809 ... Auto stop time change slider, 810 ... Auto stop button fine adjustment button, 811 ... Default value bar, 812 ... Auto stop ON / OFF button, 813 ... Power selection button , 814 ... Sort button, 815 ... Edit end button.

Claims

With the motor
It has a control unit that can control the output of the motor, and has
The control unit is configured to be able to drive the motor in any of a plurality of drive modes that can be selected by the operator.
The plurality of drive modes are
A changeable mode that allows you to change the set value using an external device,
A working machine characterized by having an immutable mode in which the set value cannot be changed using the external device.
The working machine according to claim 1, further comprising a display unit for notifying that the changeable mode is selected.
The display unit is configured to be able to display whether any of the plurality of drive modes is selected.
The working machine according to claim 2, wherein the display unit has a changeable mode display unit that is displayed only when the changeable mode is selected.
The display unit is configured to be able to display whether any of the plurality of drive modes is selected.
The second aspect of the present invention is characterized in that the display unit can display the case where the changeable mode is set and the case where the changeable mode is set separately by a common display window. The work machine described.
The working machine according to claim 4, wherein the display window displays different colors depending on whether the display window is set to the changeable mode or the non-changeable mode.
The working machine according to any one of claims 1 to 5, further comprising an operation unit capable of switching the plurality of drive modes.
When the operation unit is operated when there is a changeable mode in which the set value is not set using the external device, the plurality of drive modes excluding the changeable mode in which the set value is not set are not set. The drive mode can be switched in the
When there is a changeable mode in which the set value is set using the external device, by operating the operation unit, it is possible to shift to the changeable mode in which the set value is set. The working machine according to claim 6.
When the operation unit is operated when the connection with the external device for which communication has been established is disconnected, the drive mode can be switched among the plurality of drive modes excluding the changeable mode. The working machine according to claim 6 or 7.
The working machine according to any one of claims 1 to 8, wherein when a predetermined signal is received from the external device, the control unit automatically shifts to the changeable mode.
The invention according to any one of claims 1 to 9, wherein when the set value is set by using the external device, the device has a storage unit for storing the set value set as the changeable mode. Working machine.
The working machine according to any one of claims 1 to 10, wherein the drive mode can be switched by using the external device.
The working machine according to any one of claims 1 to 11, further comprising a resetting means capable of resetting a set value set in the changeable mode.
The working machine according to any one of claims 1 to 12, wherein the set value set in the changeable mode can be reset by using the external device.
With tip tools,
It has a rotary striking mechanism that rotationally impacts the tip tool by the rotation of the motor.
The working machine according to any one of claims 1 to 13, wherein the working machine is driven by the electric power of a battery pack.
The control unit has an auto-stop function of stopping the motor when a set time elapses from the start of striking the tip tool by the rotary striking mechanism.
The working machine according to claim 14, wherein the set time of the auto stop function in the changeable mode can be changed by the external device.